CONNECTOR
20230110901 · 2023-04-13
Inventors
Cpc classification
H01R13/74
ELECTRICITY
H01R12/91
ELECTRICITY
H01R31/06
ELECTRICITY
International classification
Abstract
A connector includes terminals, and a movable housing capable of displacing with respect to a mounting target. The terminals include displacing portions that displace together with the movable housing, and the displacing portions include one side contact portions that contact a connection target from a one-side. The inner connector includes add members retained in the movable housing. The add members include other-side contact portions that contact the relay connector from an other-side. The add members are formed as separate bodies to the terminals.
Claims
1. A connector mountable to a mounting target, the connector comprising: a terminal; a movable housing capable of displacing with respect to the mounting target; and an add member formed as a separate body from the terminal and retained in the movable housing, wherein: the terminal includes a displacing portion retained in the movable housing and displacing together with the movable housing; the displacing portion includes a one-side contact portion for contacting a connection target from one side; and the add member includes an other-side contact portion for contacting the connection target from another side;
2. The connector of claim 1, wherein the add member does not include a portion connecting to the mounting target or a portion between this portion and the other-side contact portion.
3. The connector of claim 1, wherein the add member does not have a structure for electrically connecting to the terminal.
4. The connector of claim 1, wherein the add member is configured by a material having a lighter specific weight than the terminal.
5. The connector of claim 1, wherein the add member is configured from a stainless steel, an aluminum alloy, a titanium alloy, or a nickel alloy.
6. The connector of claim 1, wherein, in the movable housing, a portion where the add member is retained and a portion where the displacing portion is retained are formed as a single body.
7. The connector of claim 1, wherein: the one-side contact portion includes a first contact tab for contacting the connection target and a second contact tab for contacting the connection target further toward a connection direction far side than the first contact tab; a displacement amount of a contact point of the first contact tab when the connection target has been connected is configured so as to be greater than a displacement amount of a contact point of the second contact tab; and the second contact tab contact point is not covered or obscured by any member including the first contact tab and the add member when the connector is viewed from the connection direction far side.
8. The connector of claim 1, wherein a contact metal layer is formed at the one-side contact portion.
9. The connector of claim 8, wherein the contact metal layer includes a precious metal.
10. The connector of claim 8, wherein: the contact metal layer includes tin or a tin alloy; and tin or a tin alloy is not adhered to the add member at a portion retained in the movable housing.
11. The connector of claim 1, wherein: a base metal of the add member is a stainless steel; the add member does not include a plating layer; and the add member is not electrically connected to the mounting target.
Description
BRIEF DESCRIPTION OF DRAWINGS
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DESCRIPTION OF EMBODIMENTS
[0186] In the following description ±X directions indicate front-rear directions in each of the drawings, ±Y directions indicate width directions therein, and ±Z directions indicate up-down directions therein.
Connector Set
[0187] As illustrated in
[0188] The inner connector 10 is mounted to a substrate 14 (mounting target) disposed inside a case 13. The inner connector 10 is a right angle type floating connector.
[0189] The relay connector 11 acts as a relay between the inner connector 10 disposed inside the case 13, and a connection target (omitted from illustration and hereafter also referred to as an “external connection target”, such as, for example, a connector provided to an end portion of a wire harness) external to the case 13. The relay connector 11 is installed at an opening 13a of the case 13.
[0190] The connection between the inner connector 10 and the relay connector 11 is, for example, performed in the following sequence.
[0191] First the substrate 14 mounted with the inner connector 10 is disposed and fixed at the inside of the case 13.
[0192] Then the relay connector 11 is fitted into the opening 13a of the case 13 and the relay connector 11 is also connected to the inner connector 10.
[0193] Finally the relay connector 11 is fixed to the case 13 by non-illustrated bolts or the like.
[0194] Inner connector 10
[0195] Description now follows regarding the inner connector 10.
[0196]
[0197] The inner connector 10 includes plural terminals 40, 50, a fixed housing 20, a movable housing 30, plural (four) fixings 101, and plural (28) add members 90.
[0198] Terminals 40, 50
[0199] The plural terminals 40, 50 include plural (14) upper terminals 40 and plural (14, the same number as the upper terminals 40) lower terminals 50.
[0200] The plural upper terminals 40 each have the same structure as each other, and the plural lower terminals 50 also each have the same structure as each other. The upper terminals 40 have a different structure to the lower terminals 50.
[0201] In the following, when describing items that are common to both the upper terminals 40 and the lower terminals 50, the upper terminals 40 and the lower terminals 50 will not be particularly discriminated between and will be called terminals 40, 50.
[0202] As illustrated in
[0203] The connection portions 41, 51 are solder mounted to a surface (installation face) of the substrate 14 serving as a connection target. The fixed-side retained portions 42, 52 are press-fitted into the fixed housing 20. The moving-side retained portions 44, 54 are press-fitted into the movable housing 30. The moving-side retained portions 44, 54 and the contact portions 45, 55 function as displacing portions 44, 45, 54, 55 capable of displacing with respect to the substrate 14.
[0204] Upper Terminals 40
[0205] The connection portions 41 of the upper terminals 40 each extend rearward from a bent portion 404 formed at a lower side of a first extending portion 401 extending in the up-down direction.
[0206] The fixed-side retained portions 42 of the upper terminals 40 each include a first press-fit portion 421 and a second press-fit portion 422.
[0207] The first press-fit portion 421 is formed to the first extending portion 401 extending in the up-down direction. The first press-fit portion 421 has a plate thickness direction facing in the front-rear direction. Press-fit projections are formed on both plate width direction sides of the first press-fit portion 421.
[0208] The second press-fit portion 422 is formed to a second extending portion 403 extending forward from a bent portion 402 (first bent portion) formed at an upper side of the first extending portion 401. The second press-fit portion 422 is positioned in the vicinity of the bent portion 402 of the second extending portion 403. The second press-fit portion 422 has a plate thickness direction facing in the up-down direction. The second press-fit portion 422 has a plate width formed greater than adjacent portions. A specific structure of the second press-fit portion 422 will be described later.
[0209] The fixed-side retained portions 42 are press-fitted into the fixed housing 20 with upward as the press-fit direction. Thus each of the first press-fit portions 421 is press-fitted in a direction perpendicular to its plate thickness direction, and each of the second press-fit portions 422 is press-fitted in a direction parallel to its plate thickness direction.
[0210] The intermediate deforming portion 43 of each of the upper terminals 40 includes a forward extending portion 431 that is a portion of the second extending portion 403 more toward the displacing portion 44, 45 side than the second press-fit portion 422, a bent portion 432, an upward extending portion 433, a bent portion 434, a rearward extending portion 435, a bent portion 436, an upward extending portion 437, a bent portion 438, and a forward extending portion 439.
[0211] The bent portion 432, the upward extending portion 433, and the bent portion 434 configure a fold-back portion 432, 433, 434 where an extension direction is transformed from being the forward direction to being the rearward direction.
[0212] The bent portion 436, the upward extending portion 437, and the bent portion 438 configure a fold-back portion 436, 437, 438 where an extension direction is transformed from being the rearward direction to being the forward direction.
[0213] Thus the intermediate deforming portion 43 of each of the upper terminals 40 includes two fold-back portions where the extension direction is transformed between the forward and rearward directions.
[0214] The top-bottom dimension of the lower fold-back portion 432, 433, 434 is smaller than the top-bottom dimension of the upper fold-back portion 436, 437, 438.
[0215] Most of the forward extending portion 431 is configured by a portion (a gradually reducing extending portion) having a plate width dimension that gets smaller on progression toward the displacing portion 44, 45 side. The bent portion 432 is formed with a larger plate width than adjacent portions such that stress is not concentrated thereat. The forward extending portion 439 includes a base-end-side portion 439a having a plate width that does not change, and a leading-end-side portion 439b having a plate width that gradually widens on approaching the displacing portion 44, 45.
[0216] Lower Terminals 50
[0217] A connection portion 51 of each of the lower terminals 50 extends forward from a bent portion 504 formed at a lower side of a first extending portion 501 that extends in the up-down direction.
[0218] The fixed-side retained portion 52 of each of the lower terminals 50 includes a first press-fit portion 521 and a second press-fit portion 522.
[0219] The first press-fit portion 521 is formed to the first extending portion 501 that extends in the up-down direction. The first press-fit portion 521 has a plate thickness direction oriented in the front-rear direction. There are press-fit projections formed at both plate width direction sides of the first press-fit portion 521.
[0220] The second press-fit portion 522 is formed to a second extending portion 503 extending rearward from a bent portion 502 (a first bent portion) formed at an upper side of the first extending portion 501. The second press-fit portion 522 is positioned in the vicinity of the bent portion 502 of the second extending portion 503. The second press-fit portion 522 has a plate thickness direction oriented in the up-down direction. The second press-fit portion 522 is formed with a plate width greater than adjacent portions. A specific structure of the second press-fit portion 522 will be described later.
[0221] The fixed-side retained portion 52 is press-fitted into the fixed housing 20 with upward as the press-fit direction. The first press-fit portion 521 is thereby press-fitted in a direction perpendicular to its plate thickness direction, and the second press-fit portion 522 is press-fitted in a direction parallel to its plate thickness direction.
[0222] The intermediate deforming portion 53 of each of the lower terminals 50 includes a rearward extending portion 531 that is a portion of the second extending portion 503 further to the displacing portion 54, 55 side than the second press-fit portion 522, a bent portion 532, an upward extending portion 533, a bent portion 534, and a forward extending portion 535.
[0223] The bent portion 532, the upward extending portion 533, and the bent portion 534 configure a fold-back portion 532, 533, 534 where the extension direction is transformed from being the rearward direction to being the forward direction. The intermediate deforming portion 53 of each of the lower terminals 50 includes a single fold-back portion where the extension direction is transformed between forward and rearward directions.
[0224] Most of the rearward extending portion 531 is configured by a portion (gradually reducing extending portion) having a plate width that gets smaller on progression toward the displacing portion 54, 55 side. The bent portion 532 is formed with a larger plate width than adjacent portions such that stress is not concentrated thereat.
[0225] The displacing portions 44, 45 of the upper terminals 40 and the displacing portions 54, 55 of the lower terminals 50 have the same structure and so will be described together.
[0226] The displacing portions 44, 45, 54, 55 include the moving-side retained portions 44, 54 and the contact portions 45, 55.
[0227] The moving-side retained portions 44, 54 have a plate thickness direction oriented in the up-down direction. Press-fit projections are formed at both plate width direction (width direction) sides of the moving-side retained portions 44, 54. The moving-side retained portions 44, 54 are press-fitted into the movable housing 30 with forward as the press-fit direction. The moving-side retained portions 44, 54 are thereby each press-fitted in a direction perpendicular to its plate thickness direction.
[0228] The moving-side retained portions 44, 54 are directly connected to the forward extending portions 439, 535 and not through a bent portion.
[0229] The contact portions 45, 55 include first contact tabs 45a, 55a for resiliently contacting the connection target (the relay terminals 60, 70), and second contact tabs 45b, 55b for resiliently contacting the connection target further toward a far side (rearward) in the connection direction than the first contact tabs 45a, 55a.
[0230] The first contact tabs 45a, 55a include first contact points 45a1, 55a1, and respective pairs of first support portions 45a2, 55a2.
[0231] The first contact points 45a1, 55a1 are bend-folded in a mountain shape so as to be convex upward.
[0232] The pairs of first support portions 45a2, 55a2 resiliently support the first contact points 45a1, 55a1.
[0233] The second contact tabs 45b, 55b include second contact points 45b1, 55b1 and second support portions 45b2, 55b2.
[0234] The second contact points 45b1, 55b1 are bend-folded in a mountain shape so as to be convex upward. The second contact points 45b1, 55b1 are positioned further rearward than the first contact points 45a1, 55a1. The second contact points 45b1, 55b1 are accordingly positioned further toward the far side (rearward) in the connection direction than the first contact points 45a1, 55a1. When connecting the relay connector 11 to the inner connector 10, the relay terminals 60, 70 of the relay connector 11 first slide against and are wiped by the first contact points 45a1, 55a1, and then contact the second contact points 45b1, 55b1.
[0235] The second support portions 45b2, 55b2 are formed between the respective pairs of first support portions 45a2, 55a2.
[0236] The peak positions (contact points) of the second contact points 45b1, 55b1 are positioned below the peak positions (contact points) of the first contact points 45a1, 55a1 when the inner connector 10 is in a state not connected to the relay connector 11.
[0237] Next, description follows regarding the positional relationships and the like between the upper terminals 40 and the lower terminals 50.
[0238] The displacing portions 54, 55 of the lower terminals 50 are positioned further to a lower side than the displacing portions 44, 45 of the upper terminals 40.
[0239] The start end of the intermediate deforming portion 53 of the lower terminals 50 (i.e. a boundary between the rearward extending portion 531 and the fixed-side retained portion 52) is positioned further to a lower side than the start end of the intermediate deforming portion 43 of the upper terminal 40.
[0240] The up-down dimension of the intermediate deforming portion 53 of the lower terminal 50 is smaller than the up-down dimension of the intermediate deforming portion 43 of the upper terminal 40.
[0241] The front-rear extending portion (the forward extending portion 431) at the start end side of the intermediate deforming portion 43 of the upper terminal 40 is shorter than the front-rear extending portion (the rearward extending portion 531) at the start end side of the intermediate deforming portion 53 of the lower terminal 50.
[0242] The front-rear extending portion (the forward extending portion 439) at the final end side of the intermediate deforming portion 43 of the upper terminal 40 is longer than the front-rear extending portion (the forward extending portion 535) at the final end side of the intermediate deforming portion 53 of the lower terminal 50.
[0243] The position of the plural upper terminals 40 in the width direction is different from the position of the plural lower terminals 50 therein. The upper terminals 40 and the lower terminals 50 are arrayed alternately along the width direction (a terminal array direction).
[0244] Add Member 90
[0245] The add members 90 are members formed as different bodies to the terminals 40, 50, and are retained in the movable housing 30.
[0246] As illustrated in
[0247] The front end portion 90a is formed such that the width dimension gets smaller on progression forward.
[0248] The general portion 90b has a constant width dimension irrespective of position in the front-rear direction, except for at portions where press-fit projections 92, 93, described later, are formed.
[0249] The rear end portion 90c has a constant width dimension irrespective of position in the front-rear direction, with a smaller plate width than the general portion 90b.
[0250] The add members 90 are formed by punch processing or the like so as to be punched out from sheet material, and have not been subjected to bend processing. The add members 90 are, for example, configured from a stainless steel, and plating processing has not been performed thereon.
[0251] A bulge portion 91 bulging downward is formed on the add member 90 by bead processing. The bulge portion 91 is formed at a position opposing the respective contact portion 45, 55 of the terminals 40, 50 in the up-down direction. The bulge portion 91 contacts the relay terminals 60, 70 of the relay connector 11. The bulge portion 91 is formed so as to extend along the front-rear direction, and opposes both the first contact points 45a1, 55a1 and the second contact points 45b1, 55b1 in the up-down direction. The front end of the bulge portion 91 is positioned at the front end portion 90a of the add member 90. The rear end of the bulge portion 91 is positioned at the general portion 90b of the add member 90, and specifically is positioned further forward than a front-rear direction center position of the general portion 90b.
[0252] The bulge portion 91 corresponds to an “add-side contact portion” and an “other-side contact portion” of the present disclosure.
[0253] The add members 90 each include plural press-fit projections 92, 93.
[0254] The plural press-fit projections 92, 93 are configured from a pair of front press-fit projections 92 and a pair of rear press-fit projections 93. The position in the front-rear direction where the pair of front press-fit projections 92 is formed is a position overlapping with a range where the bulge portion 91 is formed. The position in the front-rear direction where the pair of rear press-fit projections 93 is formed is a position not overlapping with the range where the bulge portion 91 is formed, and is a position corresponding to a rear end of the general portion 90b of the add member 90.
[0255] The add members 90 are each press-fitted into an add member press-fit groove 312b (see
[0256] A part at a leading end side of the front end portion 90a configures a leading-end-side inclined portion 90a1.
[0257] The plate thickness at the leading-end-side inclined portion 90a1 gets smaller on progression forward. Thus a lower face of the leading-end-side inclined portion 90a1 is inclined upward on progression forward.
[0258]
[0259] In the present exemplary embodiment the bulge portion 91 is formed by bead processing (namely, by processing to form an indentation in the plate thickness direction). This accordingly enables the bulge amount (projection amount/indentation amount) of the bulge portion 91 to be changed easily, facilitating variation evolution.
[0260] Fixed Housing 20
[0261]
[0262] The fixed housing 20 is a housing fixed to the substrate 14 serving as the “mounting target”. The fixed housing 20 is fixed to the substrate 14 through the plural terminals 40, 50 and the plural fixings 101.
[0263] The fixed housing 20 is formed from an electrical insulator such as a synthetic resin or the like.
[0264] The fixed housing 20 includes a lower frame 21, 22, 23.
[0265] The lower frame 21, 22, 23 includes a front frame portion 21, a rear frame portion 22, and a pair of side frame portions 23. The front frame portion 21 and the rear frame portion 22 extend in the width direction, and the pair of side frame portions 23 extend in the front-rear direction. The lower frame 21, 22, 23 accordingly has a rectangular frame shape in plan view.
[0266] The front frame portion 21 functions as a lower terminal retaining portion 21 that retains part of each of the lower terminals 50 (the fixed-side retained portion 52 thereof) (see
[0267] The cross-portional profile of the front frame portion 21 is a rectangular shape in a cross-portion orthogonal to the width direction. The upper face of the front frame portion 21 is a flat face having an upward facing normal direction. The press-fit grooves 28 are grooves open only at the lower face side and the rear face side of the front frame portion 21.
[0268] The rear frame portion 22 functions as an upper terminal retaining portion 22 (see
[0269] The pair of side frame portions 23 has a left-right symmetrical structure. Fixing press-fit grooves 231, 232 are formed in the side frame portions 23 for the fixings 101 to be press-fitted therein. The fixings 101 are press-fitted into the fixing press-fit grooves 231, 232 from the upper side. The side frame portions 23 are thereby fixed to the substrate 14 by the fixings 101.
[0270] The fixing press-fit grooves 231, 232 include front fixing press-fit grooves 231 and rear fixing press-fit grooves 232. When the side frame portions 23 are each divided into a front portion, a rear portion, and an intermediate portion therebetween, the front fixing press-fit grooves 231 are formed to the front portions of the side frame portions 23 and the rear fixing press-fit grooves 232 are formed to the rear portions of the side frame portions 23.
[0271] As described above, the lower frame 21, 22, 23 is fixed to the substrate 14 by every one of the front frame portion 21, the rear frame portion 22, and the pair of side frame portions 23 that configure frame portions in four directions.
[0272] A pair of outer indentations 211 are formed to the front frame portion 21 at the width direction outside of the portion where the plural press-fit grooves 28 are formed (see
[0273] A pair of outer indentations 221 are formed to the rear frame portion 22 at the width direction outside of the portion where the plural press-fit grooves 28 are formed. The outer indentations 221 are indentations that are open downward and forward.
[0274] The space surrounded by the lower frame 21, 22, 23 configures a space (through-pass space 29) through which the movable housing 30 is able to pass in the up-down direction.
[0275] As illustrated in
[0276] The fixed housing 20 includes a pair of rear side-walls 24. The pair of rear side-walls 24 has a left-right symmetrical structure. The rear side-walls 24 extend upward from rear ends of the side frame portions 23. The rear side-walls 24 are not formed at positions corresponding to front portions of the side frame portions 23. The rear side-walls 24 configure width direction outside walls of a space where the movable housing 30 is disposed.
[0277] The fixed housing 20 includes a pair of restricting portions 27.
[0278] The pair of restricting portions 27 has a left-right symmetrical structure. The restricting portions 27 are formed at an upper side of intermediate portions of the side frame portions 23. The restricting portions 27 each include the front restricting wall 271 and the rear restricting wall 272. The front restricting wall 271 and the rear restricting wall 272 oppose each other in the front-rear direction. The front-rear direction movement range of the movable housing 30 is restricted by the jutting out portions 32 of the movable housing 30 (see
[0279] Specifically, the front restricting walls 271 each have a cuboidal shape, and more specifically the shape of a cuboid in which the front-rear dimension is smaller than both the up-down dimension and the width dimension.
[0280] The width direction outside faces of the front restricting walls 271 are flush with the width direction outside faces of the side frame portions 23. The width direction outside faces of the front restricting walls 271 are positioned further to the width direction outside than width direction outside faces of the rear side-wall 24. The upper faces of the front restricting walls 271 are flush with an upper face of a ceiling plate 25. The front faces of the front restricting walls 271 are flush with a front face of the ceiling plate 25.
[0281] Specifically, the rear restricting walls 272 each have a cuboidal shape, and more specifically the shape of a cuboid in which the front-rear dimension is smaller than both the up-down dimension and the width dimension.
[0282] The width direction outside faces of the rear restricting walls 272 are flush with the width direction outside faces of the side frame portions 23. The width direction outside faces of the rear restricting walls 272 are positioned further to the width direction outside than the width direction outside faces of the rear side-walls 24. The upper faces of the rear restricting wall 272 are flush with the upper face of the ceiling plate 25.
[0283] The width direction inside ends of the rear restricting walls 272 are connected to the front ends of the rear side-walls 24.
[0284] The fixed housing 20 includes the ceiling plate 25.
[0285] The ceiling plate 25 configures a wall at an upper side of the space where the movable housing 30 is disposed.
[0286] The ceiling plate 25 couples upper ends of the pair of restricting portions 27 and the pair of rear side-walls 24 together in the width direction. The ceiling plate 25 abuts the movable housing 30 when the movable housing 30 has been displaced upward. Namely, the ceiling plate 25 functions as a portion (upward limiting portion) to limit an upward movement range of the movable housing 30.
[0287] Taking the fixed housing 20 to be configured by three portions, i.e. a front portion, a rear portion, and an intermediate portion therebetween, although the ceiling plate 25 is formed at the intermediate portion and the rear portion of the fixed housing 20, the ceiling plate 25 is not formed at the front portion of the fixed housing 20.
[0288] The fixed housing 20 includes a rear wall 26.
[0289] The rear wall 26 extends from the rear frame portion 22 toward the upper side and couples rear ends of the rear side-walls 24 together in the width direction. An upper end of the rear wall 26 is connected to a rear end of the ceiling plate 25.
[0290] A front face of the rear wall 26 is flush with a front face of the rear frame portion 22, and a rear face of the rear wall 26 is flush with a rear face of the rear frame portion 22.
[0291] There are plural (5) rear wall indentations 261 formed in the rear wall 26 so as to be recessed forward with respect to the rear face of the rear wall 26. The rear wall indentations 261 are indentations opening rearward and upward. The plural rear wall indentations 261 are formed in a row along the width direction. Lower ends of the rear wall indentations 261 are positioned at an upper side of an upper end of the lower frame 21, 22, 23 (more specifically at an upper side of an upper face of the side frame portions 23).
[0292] Specific Shapes of the Second Press-Fit Portions 422 and the Press-Fit Grooves 28 of the Fixed Housing 20
[0293] Next detailed description follows regarding the structure of the fixed-side retained portions 42, 52 of the terminals 40, 50 and of the press-fit grooves 28 of the fixed housing 20.
[0294]
[0295] The press-fit grooves 28 of the front frame portion 21 and the press-fit grooves 28 of the rear frame portion 22 have substantially the same structure as each other. These will be simply referred to below as the press-fit groove 28 when not be particularly discriminated between in the description.
[0296] The press-fit grooves 28 are grooves opening downward and toward the front-rear direction inside, and are configured so as to enable the fixed-side retained portions 42, 52 to be press-fitted therein from below.
[0297] The press-fit grooves 28 each include a first groove 281 for press-fitting the first press-fit portion 421, 521 into, and a second groove 282 for press-fitting the second press-fit portion 422, 522 into.
[0298] The second groove 282 includes a wide-width portion 282a configuring a lower portion thereof, and a narrow-width portion 282b configuring an upper portion thereof. The width dimension of the wide-width portion 282a is larger than the maximum plate width of the second press-fit portions 422, 522, and the width dimension of the narrow-width portion 282b is smaller than the maximum plate width of the second press-fit portions 422, 522. Thus the second press-fit portions 422, 522 do not dig into the fixed housing 20 at the wide-width portion 282a, but do dig into the fixed housing 20 at the narrow-width portion 282b. The second press-fit portions 422, 522 are thereby retained in the narrow-width portion 282b of the second groove 282.
[0299] The lower portion of the second groove 282 is configured by the wide-width portion 282a so as to achieve a configuration in which a timing at which the first press-fit portions 421, 521 are press-fitted into the first grooves 281 is as near as possible the same as a timing at which the second press-fit portions 422, 522 are press-fitted into the second grooves 282.
[0300] A boundary portion 283 is formed between the first groove 281 and the second groove 282.
[0301] A groove width at the boundary portion 283 is smaller than a groove width of other portions of the press-fit groove 28. The groove width of the boundary portion 283 is constant across the entire up-down direction thereof.
[0302]
[0303] The second press-fit portion 522 of the lower terminal 50 is formed with a plate width larger than adjacent portions.
[0304] The portions indicated by arrows in
[0305] A rate of change in plate width on the first press-fit portion 521 side of the maximum plate width position of the second press-fit portion 522 is larger than a rate of change in plate width on the displacing portion 54, 55 side thereof. Note that the rate of change in plate width means the quantity of change in plate width with respect to distance toward the first press-fit portion 521 side or toward the displacing portion 54, 55 side. Indentation shaped edges 522a that are convex on the width direction inside are formed at a boundary between the second press-fit portion 522 and the intermediate deforming portion 53. The indentation shaped edge 522a is formed with a smooth curved shape.
[0306] The configuration of the second press-fit portions 522 of the lower terminals 50 as described above also applies to the second press-fit portions 422 of the upper terminals 40.
[0307] Description of the configuration of the second press-fit portion 422 will accordingly be omitted.
[0308] Fixings 101
[0309] The fixings 101 are components for fixing the fixed housing 20 to the substrate 14. The fixings 101 are, for example, made from metal. As illustrated in
[0310] Movable Housing 30
[0311] The movable housing 30 is formed from an electrical insulator such as, for example, a synthetic resin.
[0312] As illustrated in
[0313] An upper face 31a of the main body 31 is a flat face with upward as the normal direction thereto.
[0314] A lower face 31b of the main body 31 is a flat face with downward as the normal direction thereto.
[0315] A pair of side faces 31c of the main body 31 are flat faces with the width direction outside as normal directions thereto. The pair of side faces 31c abut parts of the fixed housing 20 (specifically the front restricting walls 271) when the movable housing 30 moves in the width direction. The width direction movement range of the movable housing 30 is accordingly limited thereby.
[0316] Moreover, the main body 31 includes upper side curved faces 31d to connect the upper face 31a and the side faces 31c together, and lower side curved faces 31e to connect the lower face 31b and the side faces 31c together.
[0317] An upper face indentation 311 is formed to the main body 31. The upper face indentation 311 is indented so as to be recessed downward with respect to the upper face 31a of the main body 31. An indentation corresponding to the upper face indentation 311 is not formed on the lower face 31b side of the main body 31.
[0318] The main body 31 retains the plural terminals 40, 50 and add members 90.
[0319] More specifically, the main body 31 includes plural rearward-opening placement spaces 312A, 312B. Respective parts of the terminals 40, 50 and add members 90 are press-fitted into the placement spaces 312A, 312B from the rear side.
[0320] The plural placement spaces 312A, 312B include plural upper placement spaces 312A arranged in a row along the width direction, and plural lower placement spaces 312B also arranged in a row along the width direction. The displacing portions 44, 45 of the upper terminals 40 are arranged in the upper placement spaces 312A and the displacing portions 54, 55 of the lower terminal 50 are arranged in the lower placement spaces 312B. The plural placement spaces 312A, 312B have the same structure as each other, and so are simply called placement spaces 312 when not particular discriminating therebetween.
[0321] As illustrated in
[0322] As illustrated in
[0323] As illustrated in
[0324] Terminal press-fit grooves 312a for press-fitting the moving-side retained portions 44, 54 of the terminals 40, 50 into are formed in the vicinity of a lower end of the placement spaces 312.
[0325] Add member press-fit grooves 312b for press-fitting the press-fit projections 92, 93 of the add members 90 into are formed in the vicinity of an upper end of the placement spaces 312.
[0326] A pair of positioning holes 315 are formed in the main body 31.
[0327] The pair of positioning holes 315 are holes for inserting a pair of positioning projections 86 (see
[0328] The pair of positioning holes 315 has a left-right symmetrical structure. The positioning holes 315 are positioned at the width direction outside with respect to the positions where the plural placement spaces 312A are formed. The positioning holes 315 penetrate through the main body 31 in the front-rear direction.
[0329] The movable housing 30 includes the pair of jutting out portions 32.
[0330] The pair of jutting out portions 32 are positioned at the width direction outside of the main body 31. The jutting out portions 32 are respectively arranged between the front restricting wall 271 and the rear restricting wall 272 of the restricting portion 27 of the fixed housing 20. The front-rear direction movement range of the movable housing 30 is limited thereby.
[0331] The jutting out portions 32 each have a plate shape with a plate thickness direction in the front-rear direction. A lower end of the jutting out portions 32 is positionally aligned in the up-down direction with the lower face 31b of the main body 31 and an upper end of the jutting out portions 32 is positionally aligned with the upper face 31a of the main body 31.
[0332] As illustrated in
[0333] A rearward bulge portion 321 is formed to each of the jutting out portions 32 so as to bulge toward the rear side with respect to the rear face 32a of the jutting out portions 32. The rear ends of the jutting out portions 32 are accordingly positioned further rearward than the rear face 31f of the main body 31. The rearward bulge portions 321 are each formed at positions corresponding to an upper end portion, a lower end portion, and a width direction outside end portion of the respective jutting out portion 32.
[0334] Assembly Process
[0335] In an assembly process of the inner connector 10, prior to the plural terminals 40, 50 being press-fitted into the fixed housing 20, the plural terminals 40, 50 and the plural add members 90 are press-fitted into the movable housing 30 (see
[0336] Relay Connector 11
[0337] Description now follows regarding the relay connector 11.
[0338] The relay connector 11 includes plural relay terminals 60A, 60B, 70A, 70B (see
[0339] Plural Relay Terminals 60A, 60B, 70A, 70B
[0340] The plural relay terminals 60A, 60B, 70A, 70B are for electrically connecting the terminals 40, 50 of the inner connector 10 (hereafter referred to as inner terminals 40, 50) to an external connection target (not illustrated in the drawings) external to the case 13.
[0341] In the following description the front side that is the direction toward the external connection target in the front-rear direction is called the “external side”, and the rear side that is the direction toward the inner connector 10 in the front-rear direction is called the “inner side”.
[0342] As illustrated in
[0343] The plural first relay terminals 60A are of the same structure as each other, the plural second relay terminals 70A are of the same structure as each other, the plural third relay terminals 60B are of the same structure as each other, and the plural fourth relay terminals 70B are of the same structure as each other.
[0344] The first relay terminals 60A and the third relay terminals 60B are of the same structure as each other. However, the third relay terminals 60B differ from the first relay terminals 60A in placement orientation, with the third relay terminals 60B being arranged at an orientation rotated by 180° with respect to the orientation of the first relay terminals 60A about an axis running along the front-rear direction.
[0345] The second relay terminals 70A and the fourth relay terminals 70B are of the same structure as each other. However, the fourth relay terminals 70B differ from the second relay terminals 70A in placement orientation, with the fourth relay terminals 70B being arranged at an orientation rotated by 180° with respect to the orientation of the second relay terminals 70A about an axis running along the front-rear direction.
[0346] The first relay terminals 60A and the third relay terminals 60B have different structures to the second relay terminals 70A and the fourth relay terminals 70B.
[0347] Thus there are two types of terminal having different structures to each other employed for the plural relay terminals 60A, 60B, 70A, 70B.
[0348] Relay Terminal 60, 70 Structure
[0349] The relay terminals with the structure of the first relay terminals 60A and the third relay terminals 60B are called first structure relay terminals 60, and the relay terminals with the structure of the second relay terminals 70A and the fourth relay terminals 70B are called second structure relay terminals 70.
[0350] As illustrated in
[0351] The inner-side contact portions 61 and the external-side contact portions 62 of the first structure relay terminals 60 are formed at different positions from each other in the up-down direction. The first structure relay terminals 60 each include a crank portion 66 formed between the inner-side contact portions 61 and the external-side contact portions 62. The crank portion 66 includes an external-side bent portion 66a, an up-down extending portion 66b, and an inner-side bent portion 66c. The crank portion 66 has a plate width smaller than adjacent portions. This accordingly facilitates forming the crank portion 66 including the bent portions (the external-side bent portion 66a and the inner-side bent portion 66c).
[0352] The inner-side contact portions 71 and the external-side contact portions 72 of the second structure relay terminals 70 are formed at the same position as each other in the up-down direction. The second structure relay terminals 70 do not include a crank portion. The second structure relay terminals 70 are easy to manufacture due to not including any bent portions.
[0353] The inner-side contact portions 61, 71 and the external-side contact portions 62, 72 in the first structure relay terminals 60 and the second structure relay terminals 70 are formed at different positions from each other in the width direction. More specifically, the inner-side contact portions 61, 71 and the external-side contact portions 62, 72 have positions displaced from each other by a distance D in the width direction.
[0354] Note that when referring to positions in the width direction of the inner-side contact portions 61, 71 and the external-side contact portions 62, 72 etc., the positions are with reference to a center axis of the inner-side contact portions 61, 71 etc.
[0355] The first structure relay terminals 60 and the second structure relay terminals 70 include first wide-width portions 63a, 73a and second wide-width portions 63b, 73b.
[0356] The first wide-width portions 63a, 73a have a plate width greater than adjacent portions and have a rectangular shape. Through holes 63a1, 73a1 are formed so as to penetrate through the first wide-width portions 63a, 73a in the up-down direction, which is the plate thickness direction. The through holes 63a1, 73a1 are circular shaped. A resin configuring the relay housing 80 is filled inside the through holes 63a1.
[0357] The second wide-width portions 63b, 73b have a plate width dimension greater than adjacent portions and have a rectangular shape.
[0358] The second wide-width portions 63b, 73b are positioned further to the external side than the first wide-width portions 63a, 73a.
[0359] In the first structure relay terminals 60, the first wide-width portions 63a and the second wide-width portions 63b are positioned further to the external side than the crank portion 66.
[0360] A part of the first structure relay terminals 60 further to the inner side than the first wide-width portions 63a is called an inner-side portion 66, 65, 61, and a part thereof further to the external side than the first wide-width portions 63a is called an external-side portion 64, 63, 62.
[0361] A part of the second structure relay terminals 70 further to the inner-side than the first wide-width portions 73a is called an inner-side portion 75, 71, and a part thereof further to the external side than the first wide-width portions 73a is called an external-side portion 74, 73b, 72.
[0362] The inner-side portions 66, 65, 61 of the first structure relay terminals 60 each include the crank portion 66, a base-end-side wide-width portion 65, and a leading-end-side narrow-width portion 61. The leading-end-side narrow-width portions 61 are the inner-side contact portions 61. The base-end-side wide-width portions 65 each include a first base-end-side wide-width portion 65a and a second base-end-side wide-width portion 65b.
[0363] The crank portions 66 are each aligned in width direction position with the first wide-width portion 63a and the external-side portion 64, 63b, 62.
[0364] The first base-end-side wide-width portion 65a has a greater width dimension than the second base-end-side wide-width portion 65b and the leading-end-side narrow-width portion 61, with the second base-end-side wide-width portion 65b having a greater width dimension than the leading-end-side narrow-width portion 61.
[0365] The base-end-side wide-width portions 65 and the leading-end-side narrow-width portions 61 have ends at a width direction one-side (the upper side in
[0366] Thus the first base-end-side wide-width portion 65a, the second base-end-side wide-width portion 65b, and the leading-end-side narrow-width portions 61 are disposed at different width direction positions. The leading-end-side narrow-width portion 61 is positioned further to the width direction one-side than the first base-end-side wide-width portion 65a and the second base-end-side wide-width portion 65b, with the second base-end-side wide-width portion 65b positioned further to the width direction one-side than the first base-end-side wide-width portion 65a.
[0367] An inclined plate edge 651 inclined toward the width direction inside on progression toward the inner side (rearward direction side) is formed at the width direction other-side end of the base-end-side wide-width portion 65 in the vicinity of the inner-side end thereof.
[0368] In the inner-side portion 66, 65, 61, only part of the leading-end-side narrow-width portion 61 is exposed from the relay housing 80.
[0369] Note that the two single-dot broken lines extending up/down in
[0370] The inner-side portions 75, 71 of the second structure relay terminals 70 each include a base-end-side wide-width portion 75 and a leading-end-side narrow-width portion 71. Note that the leading-end-side narrow-width portions 71 are the inner-side contact portions 71.
[0371] The base-end-side wide-width portions 75 have a greater width dimension than the leading-end-side narrow-width portions 71.
[0372] The base-end-side wide-width portions 75 and the leading-end-side narrow-width portions 71 have ends on the width direction one-side (the upper side in
[0373] The base-end-side wide-width portion 75 is positioned further to the width direction one-side than the first wide-width portions 73a and the external-side portion 74, 73b, 72.
[0374] An inclined plate edge 751 inclined toward the width direction inside on progression toward the inner side is formed to the width direction other-side end of the base-end-side wide-width portion 75 in the vicinity of the inner-side end thereof.
[0375] In the inner-side portion 75, 71 of the second structure relay terminal 70, only part of the leading-end-side narrow-width portion 71 is exposed from the relay housing 80.
[0376] The external-side portion 64, 63b, 62 of each of the first structure relay terminals 60 includes a base-end-side portion 64, a second wide-width portion 63b, and a leading-end-side portion 62. Note that the leading-end-side portions 62 are the external-side contact portions 62.
[0377] The base-end-side portions 64, the second wide-width portions 63b, and the leading-end-side portions 62 are positionally aligned with each other in the width direction. Moreover, the external-side portion 64, 63b, 62 is positionally aligned with the first wide-width portion 63a in the width direction.
[0378] The second wide-width portion 63b has a greater width dimension than the base-end-side portion 64 and the leading-end-side portion 62, with the leading-end-side portion 62 having a slightly greater width dimension than the base-end-side portion 64.
[0379] Each of the external-side portions 74, 73b, 72 of the second structure relay terminals 70 includes a base-end-side portion 74, a second wide-width portions 73b, and a leading-end-side portions 72. Note that the leading-end-side portions 72 are the external-side contact portions 72.
[0380] The base-end-side portion 74, the second wide-width portion 73b, and the leading-end-side portion 72 are positionally aligned with each other in the width direction. Moreover, the external-side portion 74, 73b, 72 is positionally aligned with the first wide-width portion 73a in the width direction.
[0381] The second wide-width portion 73b has a greater width dimension than the base-end-side portion 74 and the leading-end-side portion 72, with the leading-end-side portion 72 having a slightly greater width dimension than the base-end-side portion 74.
[0382] The base-end-side portion 64 of the first structure relay terminal 60 is slightly longer than the base-end-side portion 74 of the second structure relay terminal 70. The first wide-width portion 63a of the first structure relay terminal 60 is accordingly positioned slightly further toward the inner side (rear side) than the first wide-width portion 73a of the second structure relay terminal 70.
[0383] Relay Terminal 60, 70 Arrangement
[0384] As illustrated in
[0385] As illustrated in
[0386] The plural first external-side contact portions 62A are arrayed at a specific interval 8D along the width direction.
[0387] The plural second external-side contact portions 72A are also arrayed at the specific interval 8D along the width direction.
[0388] The plural third external-side contact portions 62B are also arrayed at the specific interval 8D along the width direction.
[0389] The plural fourth external-side contact portions 72B are also arrayed at the specific interval 8D along the width direction.
[0390] The plural first external-side contact portions 62A and the plural fourth external-side contact portions 72B are positioned aligned with each other in the width direction.
[0391] The plural second external-side contact portions 72A and the plural third external-side contact portions 62B are positioned aligned with each other in the width direction.
[0392] As illustrated in
[0393] Thus, as illustrated in
[0394] Relay Housing 80
[0395] The relay housing 80 is formed from an electrical insulator such as a synthetic resin. More specifically, the relay housing 80 is produced by insert molding, using the plural relay terminals 60A, 60B, 70A, 70B as insert components.
[0396] The relay housing 80 includes a fitting portion 81 for fitting together with the external connection target (see
[0397] The fitting portion 81 is formed in a tube shape. The tube shaped fitting portion 81 has a substantially rectangular shape when viewed from the front side. The external-side contact portions 62, 72 respectively included in the plural relay terminals 60, 70 are arranged at the inside of the tube shaped fitting portion 81.
[0398] The relay housing 80 includes a flange 82.
[0399] The flange 82 is disposed at the outside of the case 13 and at a periphery of the opening 13a of the case 13. Bolt-insertion through holes 82a are formed in the flange 82. There are two of the bolt-insertion through holes 82a formed. The two bolt-insertion through holes 82a are positioned at the width direction one-side and the width direction other-side of the fitting portion 81. The up-down direction position of the two bolt-insertion through holes 82a is aligned with an up-down direction center position of the fitting portion 81.
[0400] The relay housing 80 includes an opening placement portion 83 arranged inside the opening 13a of the case 13.
[0401] The opening placement portion 83 has a shape substantially similar to that of the opening 13a. A seal member 12a is mounted to a peripheral face of the opening placement portion 83.
[0402] The relay housing 80 also includes a base portion 84.
[0403] The base portion 84 is a portion that juts out from the opening placement portion 83 toward the inner side. The base portion 84 has a substantially rectangular shape when viewed along the front-rear direction. The width dimension and the up-down dimension of the base portion 84 are smaller than the width dimension and the up-down dimension of the opening placement portion 83.
[0404] The relay housing 80 also includes a terminal projection portion 85.
[0405] The terminal projection portion 85 is a portion that projects out from the base portion 84 toward the inner side. The terminal projection portion 85 has a substantially rectangular shape when viewed along the front-rear direction. The width dimension and up-down dimension of the terminal projection portion 85 are smaller than the width dimension and up-down dimension of the base portion 84. The plural relay terminals 60A, 60B, 70A, 70B project out from a rear face of the terminal projection portion 85 toward the inner side.
[0406] The relay housing 80 includes two positioning projections 86.
[0407] The two positioning projections 86 each project out from the base portion 84 toward the inner side. When connecting connectors together, leading ends of the two positioning projections 86 reach the positioning holes 315 of the movable housing 30 before the relay terminals 60, 70 reach the insertion openings 313 of the inner connector 10.
[0408] The two positioning projections 86 are positioned at the width direction outside of the terminal projection portion 85. A vicinity of the root of each of the two positioning projections 86 is integrated together with the terminal projection portion 85.
[0409] Width direction outside faces 86a2 of the positioning projections 86 are flush with respective width direction outside faces of the base portion 84.
[0410] The up-down dimension of each of the positioning projections 86 is a size enabling the inner-side contact portions 61, 71 of the plural relay terminals 60, 70 to be obscured when viewed from the side. The up-down dimension of the positioning projections 86 is smaller than the up-down dimension of the terminal projection portion 85.
[0411] The positioning projections 86 each include a general portion 86a and a leading end portion 86b. The general portion 86a has a constant cross-portion profile irrespective of position on the extension direction of the positioning projection 86 (i.e. the front-rear direction). The leading end portion 86b does not have a constant cross-portion profile along the positioning projection 86 extension direction (front-rear direction), and instead has a cross-portion that gets smaller on progression toward the leading end side (i.e. the inner-side). This facilitates insertion of the positioning projections 86 into the positioning holes 315. During insertion, the positioning projections 86 abut the inside of the positioning holes 315 of the movable housing 30 even in cases in which there is some YZ direction positional misalignment between the relay connector 11 and the inner connector 10, enabling the movable housing 30 to be displaced thereby.
[0412] The general portion 86a of each of the positioning projections 86 includes a width direction inside face 86a1, a width direction outside face 86a2, and up-down pairs of curved faces 86a3. The width direction inside face 86a1 has an up-down dimension larger than the width direction outside face 86a2.
[0413] A leading end of each of the positioning projections 86 is positioned further toward the inner side (rear side) than the leading end of the relay terminals 60, 70 (the leading end of the inner-side contact portions 61, 71). The inner-side contact portions 61, 71 of the relay terminals 60, 70 are thereby obscured and appropriately protected by the positioning projections 86 when viewed from the side, and in an embodiment in which the positioning holes 315 and the insertion openings 313 are formed at the same position in the front-rear direction, a leading end of the relay terminals 60, 70 can be appropriately prevented from colliding with the movable housing 30.
[0414] Note that even in cases in which the positioning projections 86 have been omitted, the leading ends of the relay terminals 60, 70 can be made to abut the guide surfaces 314 of the movable housing 30, enabling the movable housing 30 to be displaced.
[0415] The relay housing 80 also includes downward abutting protrusions 87. The downward abutting protrusions 87 are portions that abut the front frame portion 21 (a displacement restricting portion 21) of the inner connector 10 when the relay connector 11 is displaced downward in a fitted together state or in a state partway through fitting together. There are plural (two) of the downward abutting protrusions 87 provided. The plural downward abutting protrusion 87 are provided so as to be disposed symmetrically with respect to a width direction center of the relay connector 11.
[0416] The downward abutting protrusions 87 project downward from a lower face (opposing lower face) of the terminal projection portion 85. The downward abutting protrusions 87 each have a shape elongated along the front-rear direction. A front end of each of the downward abutting protrusions 87 is connected to the base portion 84. A rear end of the downward abutting protrusion 87 is positionally aligned in the front-rear direction with a rear face of the terminal projection portion 85.
Operation and Advantageous Effects
[0417] First Perspective
[0418] Next, description follows regarding the operation and advantageous effects of the present exemplary embodiment, from a first perspective.
[0419] As illustrated in
[0420] The inner connector 10 also includes the add members 90 formed as separate bodies to the terminals 40, 50 and retained in the movable housing 30. The add members 90 include the other-side contact portions 91 that contact the connection target 11 from the other-side (the upper side in the present exemplary embodiment). A creep phenomenon is accordingly suppressed from occurring in the movable housing 30 due to the movable housing 30 being configured so as not to be directly pressed by the connection target 11.
[0421] Moreover, the add members 90 are formed as separate bodies to the terminals 40, 50 and so there is no need for a coupling portion to couple the one-side contact portions 45, 55 and the other-side contact portions 91 together as a single body, thereby enabling the movable portions of the inner connector 10 (i.e. the movable housing 30 and the displacing portions 44, 45, 54, 55, etc.) to be made lighter in weight by a corresponding amount.
[0422] The present exemplary embodiment is accordingly able, in a floating connector, to raise the resonance frequency of the connector while also suppressing a creep phenomenon from occurring in the movable housing 30.
[0423] The add members 90 in the present exemplary embodiment do not include a portion to connect to the mounting target 14, nor a portion between such a portion and the other-side contact portions 91. There is accordingly no need to provide the add members 90 with such a portion nor with a portion between such a portion and the other-side contact portions 91, enabling the inner connector 10 to be made more compact than embodiments in which the add members 90 include such portions.
[0424] Moreover, the add members 90 in the present exemplary embodiment do not have a structure for electrically connecting to the terminals 40, 50, enabling the inner connector 10 to be made more compact or lighter in weight than a connector having such a structure.
[0425] Moreover, the add members 90 in the present exemplary embodiment are preferably configured from a material having a lighter specific weight than the terminals 40, 50. In such cases the movable portions of the inner connector 10 can be made lighter in weight.
[0426] The add members 90 in the present exemplary embodiment are preferably configured from a stainless steel, an aluminum alloy, a titanium alloy, or a nickel alloy. In such cases the surfaces of the add members 90 can be protected by a passive film and do not readily corrode even without performing significant plating processing or even without performing any plating processing on the add members 90. This accordingly enables the inner connector 10 to be manufactured cheaply.
[0427] A case might be considered in which the movable housing 30 is configured by two or more members formed as separate bodies to each other, a member to retain the add members 90 and a separate member to retain the displacing portions 44, 45, 54, 55 of the terminals 40, 50. However, in such a configuration the structure becomes more complicated for the movable housing 30.
[0428] In the present exemplary embodiment, within the movable housing 30 the portion to retain the add members 90 and the portion to retain the displacing portions 44, 45, 54, 55 are molded as a single body, enabling the structure of the movable housing 30 to be simplified.
[0429] Moreover, in the present exemplary embodiment as illustrated in
[0430] Furthermore, a displacement amount (displacement amount in a direction perpendicular to the connection direction) of the contact points (first contact points 45a1, 55a1) of the first contact tabs 45a, 55a when the connection target 11 has been connected is configured so as to be greater than the displacement amount at the contact points of the second contact tabs 45b, 55b (the second contact points 45b1, 55b1). The contact pressure of the first contact tabs 45a, 55a against the connection target 11 is accordingly higher, raising the ability to abrade and remove foreign matter (a so-called wiping ability).
[0431] However, adopting a configuration such as described above means that the contact points of the second contact tabs 45b, 55b are covered by the first contact tabs 45a, 55a when viewed from the connection direction near side (front side), resulting in an issue that the height of the contact points of the second contact tabs 45b, 55b becomes difficult to inspect.
[0432] To address this, in the present exemplary embodiment the height of the contact points of the second contact tabs 45b, 55b can be inspected when the terminal 40, 50 unit (or the terminals 40, 50 retained in the movable housing 30) is viewed from the connection direction far side (rear side).
[0433] Note that in a complete state of the inner connector 10 of the present exemplary embodiment, the rear wall 26 of the fixed housing 20 gets in the way when the inner connector 10 is viewed from the rear side, and such inspection is not able to be made (see
[0434] Moreover, in the present exemplary embodiment a contact metal layer may be formed by plating on the one-side contact portions 45, 55.
[0435] However, suppose that the terminals 40, 50 and the add members 90 were formed as one body, then the add members 90 would be in the way when forming the contact metal layer on the one-side contact portions 45, 55, making it difficult to adhere the plating solution to appropriate positions.
[0436] However, the terminals 40, 50 and the add members 90 are separate bodies in the present exemplary embodiment, and so the add members 90 are not in the way when forming the contact metal layer on the one-side contact portions 45, 55, facilitating adhering plating solution to appropriate positions. As a result thereof, the amount of metal (for example, gold, palladium, silver, tin) employed in the contact metal layer can be suppressed, enabling the inner connector 10 to be manufacture cheaply.
[0437] Moreover, the contact metal layer may include tin or a tin alloy. In such cases too, the tin or tin alloy is preferably not adhered to the portions of the add members 90 retained by the movable housing 30 (the press-fit projections 92, 93). This prevents whisker generation.
[0438] Suppose the terminal 40, 50 and the add members 90 were formed as a single body, then there would be a possibility that the plating solution also adheres to the press-fit projections 92, 93 of the add members 90 when forming the contact metal layer on the one-side contact portions 45, 55. However, due to the terminal 40, 50 and the add members 90 being separate bodies, the plating solution is prevented from inadvertently adhering to the add members 90.
[0439] Moreover, in the present exemplary embodiment the base metal of the add members 90 is a stainless steel, and preferably the add members 90 do not include a plating layer. Stainless steel is resistant to corrosion even without the trouble and cost incurred with plating, and is also moreover comparatively cheap.
[0440] Moreover, due to the add members 90 not being electrically connected to the mounting target 14, such a structure therefor can be omitted, enabling the inner connector 10 to be made more compact.
[0441] Second Perspective
[0442] Next, description follows regarding the operation and advantageous effects of the present exemplary embodiment, from a second perspective.
[0443] In the present exemplary embodiment the inner connector 10 includes the terminals 40, 50 with terminal-side contact portions 45, 55 for contacting the connection target 11, the add members 90 with the add-side contact portions 91 for contacting the connection target 11, and the housing 30 for retaining the terminal 40, 50 and the add members 90.
[0444] The add members 90 and the terminal 40, 50 are formed as separate bodies. Thus the inner connector 10 is suited to being manufactured with plural variations.
[0445] Namely, in the inner connector 10 according to the present exemplary embodiment, the terminals 40, 50 and the housing 30 are common components across every variation of the inner connector 10, and the add members 90 can be add members 90 that are designed separately for each of the variations of the inner connector 10. Thus the properties of the inner connector 10 can be changed by merely changing the add members 90 alone from out of the terminals 40, 50, the add members 90, and the housing 30 configuring the inner connector 10. For example, the properties of the inner connector 10 can be changed by merely changing the shape, the friction coefficient, or the like of the add-side contact portions 91 of the add members 90.
[0446] In particular, in the present exemplary embodiment the terminals 40, 50 include intermediate deforming portions 43, 53 and so the mold for manufacturing the terminals 40, 50 is liable to become complicated. Preparing the same number of complicated molds as the number of variations of connectors is not economically viable. To address this issue, in the present exemplary embodiment the terminals 40, 50 including the intermediate deforming portions 43, 53 are employed as common components across all the variations, and plural add members 90 lacking the intermediate deforming portions are prepared. This accordingly enables variation evolution for the inner connector 10 to be performed easily.
[0447] Moreover, in the manufacturing method according to the present exemplary embodiment the add members 90 may be selected from out of plural types of pre-designed add member 90 and retained in the housing 30.
[0448] In such cases an inner connector 10 satisfying demanded requirements can be manufactured at low cost merely by selecting the appropriate add members 90.
[0449] Moreover, in the present exemplary embodiment the terminal-side contact portions 45, 55 contact the connection target 11 from the one-side and the add-side contact portions 91 contact the connection target 11 from the other-side. In the manufacturing method according to the present exemplary embodiment, two or more types of the add member 90, 90A configured so as to have different opposing distances between the terminal-side contact portions 45, 55 and the add-side contact portions 91, 91A may be included in the plural types of add member 90.
[0450] In such cases the opposing distance between the terminal-side contact portions 45, 55 and the add-side contact portions 91, 91A can be changed to an appropriate distance merely by selecting the add members 90.
[0451] Moreover, in the present exemplary embodiment two or more types of the add members 90 with different friction coefficients for the add-side contact portions 91 may be included in the plural types of the add member 90.
[0452] In such cases the force required for connection of the connection target 11 can be set to an appropriate force merely by selecting the add members 90. Note that the friction coefficient of the add-side contact portions 91 can be changed, for example, by a specification (plating material or the like) for performing plating processing on the add-side contact portions 91.
[0453] Moreover, although in the present exemplary embodiment the plural types of add member 90 are configured such that the opposing distance between the terminal-side contact portions 45, 55 and the add-side contact portions 91 are the same, two or more types of add member having different friction coefficients for the add-side contact portions 91 may be included.
[0454] Such an approach enables the number of variations of the inner connector 10 to be increased without a greater number of variations in the shape of the add members 90.
[0455] Third Perspective
[0456] Next, description follows regarding the operation and advantageous effects of the present exemplary embodiment, from a third perspective.
[0457] In the present exemplary embodiment, as illustrated in
[0458] Moreover, the fixed housing 20 includes the displacement restricting portion 21. The displacement restricting portion 21 is provided at a position that abuts the connection target 11 when the connection target 11 has been displaced in the direction toward an installation face 14a (i.e. downward) in a state fitted together with the movable housing 30 or in a state partway through fitting together (see
[0459] Thus excessive displacement of the movable housing 30 is suppressed as a result of excessive displacement of the connection target 11 being limited in the fitted together state or the state partway through fitting together.
[0460] The present exemplary embodiment enables leg portions such as those of related art to either be simplified, or such leg portions become unnecessary, due to excessive displacement of the movable housing 30 being limited by the displacement restricting portion 21, as stated above. This enables the resonance frequency to be raised in a right angle floating connector while also limiting excessive downward displacement of the movable housing.
[0461] In particular, in the present exemplary embodiment the terminals 40, 50 include the intermediate deforming portions 43, 53, and so plastic deformation of the intermediate deforming portions 43, 53 can be suppressed by limiting excessive displacement of the movable housing.
[0462] Moreover, in the present exemplary embodiment the fixed housing 20 includes the through-pass space 29 that is a space on the installation face side (lower side) with respect to the space in which the movable housing 30 is disposed and is a space through which the movable housing 30 is able to pass.
[0463] Thus when manufacturing the inner connector 10, the movable housing 30 can be assembled to the fixed housing 20 from the lower side (see
[0464] In the present exemplary embodiment, as illustrated in
[0465] Moreover, in the present exemplary embodiment, as illustrated in
[0466] The inner connector 10 can accordingly be made more compact compared to an embodiment in which the displacement restricting portion 21 is formed separately to the portion for retaining the fixed-side retained portions 52 of the lower terminals 50.
[0467] Moreover, in the present exemplary embodiment, as illustrated in
[0468] A length is thereby able to be secured for the intermediate deforming portions 43, 53.
[0469] The relay connector 11 according to the present exemplary embodiment also includes the counterpart housing 80 and the counterpart terminals 60, 70 retained by the counterpart relay housing 80. The counterpart terminals 60, 70 include counterpart contact portions 61, 71 that project from the counterpart housing 80 and that are for contacting the contact portions 45, 55.
[0470] The counterpart housing 80 includes the adjacent support portion 85 (the terminal projection portion 85) that supports portions adjacent to counterpart contact portions 61, 71 of the terminals 40, 50. The adjacent support portion 85 includes a lower face 85a facing toward the installation face side.
[0471] Furthermore, as illustrated in
[0472] Therefore, by providing the downward abutting protrusions 87, excessive displacement of the movable housing 30 can be suppressed while also making the relay connector 11 lighter in weight than an embodiment in which the adjacent support portion 85 is simply enlarged in up-down dimension and the lower face 85a of the terminal projection portion 85 is abutted against the displacement restricting portion 21 of the inner connector 10.
[0473] Fourth Perspective
[0474] Next description follows regarding the operation and advantageous effects of the present exemplary embodiment, from a fourth perspective.
[0475] In the present exemplary embodiment, as illustrated in
[0476] The upper terminals 40 include the first press-fit portions 421 formed to the first extending portion 401 extending along the press-fit direction, the displacing portions 44, 45 that are displaceable with respect to the first press-fit portions 421, and an intermediate portion 402, 422, 43 between the first extending portion 401 and the displacing portions 44, 45. The intermediate portion 402, 422, 43 includes the plural bent portions 402, 432, 434, 436, 438 that have been bent in the plate thickness direction.
[0477] The intermediate portion 402, 422, 43 includes the second extending portion 403 connected to the first extending portion 401 through the bent portion 402 and extending along a direction perpendicular to the press-fit direction. The second press-fit portion 422 is formed to the second extending portion 403.
[0478] The second press-fit portion 422 formed to the second extending portion 403 is accordingly retained in the fixed housing 20, and so deformation of the bent portion 402 is suppressed, and stress is suppressed from concentrating at the bent portion 402.
[0479] Moreover, in the present exemplary embodiment, the lower terminal 50 includes the first press-fit portion 521 formed to the first extending portion 501 extending along the press-fit direction, the displacing portions 54, 55 capable of displacing with respect to the first press-fit portion 521, and the intermediate portion 502, 522, 53 between the first extending portion 501 and the displacing portions 54, 55. The intermediate portion 502, 522, 53 includes the plural bent portions 502, 532, 534 that have been bent in the plate thickness direction.
[0480] The intermediate portion 502, 522, 53 includes the second extending portion 503 connected to the first extending portion 501 through the bent portion 502 and extending along a direction perpendicular to the press-fit direction. The second press-fit portion 522 is formed to the second extending portion 503.
[0481] Thus due to the second press-fit portion 522 formed to the second extending portion 503 being retained in the fixed housing 20, deformation of the bent portion 502 is suppressed, and stress is suppressed from concentrating at the bent portion 502.
[0482] In particular, in the present exemplary embodiment the bent portions 402, 502 are near to the first press-fit portions 421, 521, and so stress concentrating at the bent portions 402, 502 would be particularly liable to be an issue supposing, for example, the second press-fit portions 422, 522 were not formed.
[0483] Moreover, in the present exemplary embodiment, the parts of the second extending portions 403, 503 further to the displacing portion 44, 45, 54, 55 side than the second press-fit portions 422, 522 include the gradually reducing extending portions (the forward extending portion 431 and the rearward extending portion 531) formed so as to have a plate width that gradually reduces on progression away from the second press-fit portions 422, 522.
[0484] This enables the stress to be suppressed from concentrating at particular portions of the second extending portions 403, 503.
[0485] Moreover, in the present exemplary embodiment, the second press-fit portions 422, 522 are formed with plate widths larger than portions adjacent to the second press-fit portions 422, 522. The rate of change in plate width at the first press-fit portion 421, 521 side with respect to a position on the second press-fit portions 422, 522 where the plate width is at a maximum (see
[0486] The position of the second press-fit portions 422, 522 can accordingly be set near to the bent portions 402, 502, enabling stress to be suppressed from concentrating at portions in close proximity to the second press-fit portions 422, 522 and on the displacing portions 44, 45, 54, 55 side thereof. When the position of the second press-fit portions 422, 522 can be set near to the bent portions 402, 502, this enables a long region (intermediate deforming portions 43, 53) to be secured where deformation is actually able to occur in the intermediate portions 402, 422, 43, 502, 522, 53.
[0487] Note that similar operation and advantageous effects to the operation and advantageous effects from the above fourth perspective described above are exhibited even in an embodiment in which the upper terminals 40 are not press-fitted into the fixed housing 20 in a specific press-fit direction and retained therein, but instead terminals are retained by being inserted molded into a housing. In such cases the first press-fit portions and the second press-fit portions described above may be respectively read as first retained portions and second retained portions etc.
[0488] Fifth Perspective
[0489] Next description follows regarding the operation and advantageous effects of the present exemplary embodiment, from a fifth perspective.
[0490] The connector set 10, 11 of the present exemplary embodiment includes the right angle type inner connector 10 mounted to the substrate 14 and disposed inside the case 13, and the relay connector 11 that is installed at the opening 13a of the case 13 and relays between the inner connector 10 and an external connection target (not illustrated in the drawings) external to the case 13.
[0491] The inner connector 10 includes first inner terminals 40A, second inner terminals 40B, third inner terminals 50A, and fourth inner terminals 50B. The relay connector 11 includes the first relay terminals 60A for connecting to the first inner terminals 40A, the second relay terminals 70A for connecting to the second inner terminals 40B, the third relay terminals 60B for connecting to the third inner terminals 50A, and the fourth relay terminals 70B for connecting to the fourth inner terminals 50B (see
[0492] The first inner terminals 40A include first contact portions 45A for contacting the first relay terminals 60A, and the first connection portions 41A for connecting to the substrate 14.
[0493] The second inner terminals 40B include second contact portions 45B for contacting the second relay terminals 70A, and the second connection portions 41B for connecting to the substrate 14.
[0494] The third inner terminals 50A include third contact portions 55A for contacting the third relay terminals 60B, and the third connection portions 51A for connecting to the substrate 14.
[0495] The fourth inner terminals 50B include fourth contact portions 55B for contacting the fourth relay terminals 70B, and the fourth connection portions 51B for connecting to the substrate 14.
[0496] The first relay terminals 60A include the first inner-side contact portions 61A for contacting the first inner terminals 40A, and the first external-side contact portions 62A for contacting the external connection target.
[0497] The second relay terminals 70A include the second inner-side contact portions 71A for contacting the second inner terminals 40B, and the second external-side contact portions 72A for contacting the external connection target.
[0498] The third relay terminals 60B include the third inner-side contact portions 61B for contacting the third inner terminals 50A, and the third external-side contact portions 62B for contacting the external connection target.
[0499] The fourth relay terminals 70B include the fourth inner-side contact portions 71B for contacting the fourth inner terminals 50B, and the fourth external-side contact portions 72B for contacting the external connection target.
[0500] The first external-side contact portions 62A, the second external-side contact portions 72A, the third external-side contact portions 62B, and the fourth external-side contact portions 72B are disposed at different positions in a direction perpendicular to the substrate (the up-down direction). The first inner-side contact portions 61A and the second inner-side contact portions 71A are disposed at the same position in the substrate perpendicular direction, and the third inner-side contact portions 61B and the fourth inner-side contact portions 71B are disposed at the same position in the substrate perpendicular direction.
[0501] Thus due to making the distance from the substrate 14 of the first contact portions 45A the same as the distance from the substrate 14 of the second contact portions 45B, the shape of the first inner terminals 40A can be made the same as the shape of the second inner terminals 40B, or can be made a similar shape if not the same shape. As a result thereof the design cost of the inner connector 10 can be reduced.
[0502] Moreover, due to making the distance from the substrate 14 of the third contact portions 55A the same as the distance from the substrate 14 of the fourth contact portions 55B, the shape of the third inner terminals 50A can be made the same as the shape of the fourth inner terminals 50B, or can be made a similar shape if not the same shape. As a result thereof the design cost of the inner connector 10 can be reduced.
[0503] Moreover, in the present exemplary embodiment the first inner terminals 40A include the first intermediate deforming portions 43A that are positioned between the first contact portions 45A and the first connection portions 41A and that by deforming permit displacement of the first contact portions 45A with respect to the first connection portions 41A. The second inner terminals 40B include the second intermediate deforming portions 43B that are positioned between the second contact portions 45B and the second connection portions 41B and that by deforming permit displacement of the second contact portions 45B with respect to the second connection portions 41B.
[0504] The first contact portions 45A and the second contact portions 45B are thereby able to displace with respect to the substrate 14, and are able to accommodate any positional misalignment between the substrate 14 and the relay connector 11 and any positional misalignment between the inner connector 10 and the relay connector 11.
[0505] Moreover, the inner terminals 40 include the intermediate deforming portions 43, and so the design of the inner terminals 40 is particularly complicated. This means that this would increase the design cost greatly supposing there were to be an increase in the number of shape types for the inner terminals 40. In particular, consider a case in which the inner connector 10 is employed in an environment in which a strong vibration is imparted thereto over a prolonged period of time such as in onboard equipment, this issue would be significant in such a case due to demands for the intermediate deforming portions 43 to be given a high ability to maintain performance in such an environment.
[0506] In particular, in the present exemplary embodiment the first intermediate deforming portions 43A and the second intermediate deforming portions 43B have the same shape as each other. This accordingly reduces the design cost.
[0507] Note that the above statement not only applies to the inner terminals 40, but also applies to the inner terminals 50.
[0508] Moreover, in the present exemplary embodiment the plural first external-side contact portions 62A and the plural fourth external-side contact portions 72B are disposed at the same position as each other in the array direction (the width direction), and the plural second external-side contact portions 72A and the plural third external-side contact portions 62B are disposed at the same position as each other in the array direction. The first inner-side contact portions 61A, the second inner-side contact portions 71A, the third inner-side contact portions 61B, and the fourth inner-side contact portions 71B are disposed at different positions in the array direction.
[0509] This enables the positions of the first contact portions 45A, the second contact portions 45B, the third contact portions 55A, and the fourth contact portions 55B of the inner connector 10 to be disposed at different respective positions in the array direction.
[0510] In particular, in the present exemplary embodiment, by disposing the first contact portions 45A, the second contact portions 45B, the third contact portions 55A, and the fourth contact portions 55B at different respective positions in the array direction, the contact portions 55 of the third inner terminals 50A and the fourth inner terminals 50B are not obscured by the intermediate deforming portions 43 of the first inner terminals 40A and the second inner terminals 40B when viewed from the connector direction side.
[0511] The present disclosure has been described by way of exemplary embodiments, however obviously configurations of the connector, counterpart connector, the connector set and the like of the present disclosure are not limited to the configurations of the above exemplary embodiments.
EXPLANATION OF THE REFERENCE NUMERALS
[0512] 10, 11 connector set [0513] 10 inner connector (connector) [0514] 11 relay connector (connection target) [0515] 13 case [0516] 13a opening [0517] 14 substrate (mounting target) [0518] 14a installation face [0519] 20 fixed housing (housing) [0520] 21 front frame portion (displacement restricting portion, lower terminal retaining portion) [0521] 22 rear frame portion (upper terminal retaining portion) [0522] 25 ceiling plate (upward limiting portion) [0523] 29 through-pass space [0524] 30 movable housing (housing) [0525] 40 upper terminal (inner terminal, terminal) [0526] 40A terminal for connecting to first relay terminal of upper terminal (first inner terminal) [0527] 40B terminal for connecting to second relay terminal of upper terminal (second inner terminal) [0528] 401 first extending portion [0529] 402, 422, 43 intermediate portion [0530] 402, 432, 434, 436, 438 plural bent portions [0531] 402 bent portion (first bent portion) [0532] 403 second extending portion [0533] 41 connection portion [0534] 41A first connection portion [0535] 41B second connection portion [0536] 42 fixed-side retained portion [0537] 421 first press-fit portion (first retained portion) [0538] 422 second press-fit portion (second retained portion) [0539] 43 intermediate deforming portion [0540] 43A first intermediate deforming portion [0541] 43B second intermediate deforming portion [0542] 431 forward extending portion (gradually reducing extending portion) [0543] 44, 45 displacing portion [0544] 45 contact portion (terminal-side contact portion, one-side contact portion) [0545] 45A first contact portion [0546] 45B second contact portion [0547] 45a, 55a first contact tab [0548] 45b, 55b second contact tab [0549] 50 lower terminal (inner terminal, terminal) [0550] 50A terminal for connecting to third relay terminal of lower terminal (third inner terminal) [0551] 50B terminal for connecting to fourth relay terminal of lower terminal (fourth inner terminal) [0552] 501 first extending portion [0553] 502 bent portion (first bent portion) [0554] 502, 522, 53 intermediate portion [0555] 502, 532, 534 plural bent portions [0556] 503 second extending portion [0557] 51 connection portion [0558] 52 fixed-side retained portion [0559] 521 first press-fit portion (first retained portion) [0560] 522 second press-fit portion (second retained portion) [0561] 53 intermediate deforming portion [0562] 531 rearward extending portion (gradually reducing extending portion) [0563] 54, 55 displacing portion [0564] 55 contact portion (terminal-side contact portion, one-side contact portion) [0565] 55A third contact portion [0566] 55B fourth contact portion [0567] 60A, 60B, 70A, 70B relay terminal (counterpart terminal) [0568] 60A first relay terminal [0569] 60B third relay terminal [0570] 61 leading-end-side narrow-width portion (inner-side contact portion) [0571] 61A inner-side contact portion of first relay terminal (first inner-side contact portion) [0572] 61B inner-side contact portion of third relay terminal (third inner-side contact portion) [0573] 62 leading-end-side portion (external-side contact portion) [0574] 62A first external-side contact portion [0575] 62B third external-side contact portion [0576] 70A second relay terminal [0577] 70B fourth relay terminal [0578] 71 leading-end-side narrow-width portion (inner-side contact portion) [0579] 71A inner-side contact portion of second relay terminal (second inner-side contact portion) [0580] 71B inner-side contact portion of fourth relay terminal (fourth inner-side contact portion) [0581] 72 leading-end-side portion (external-side contact portion) [0582] 72A external-side contact portion of second relay terminal (second external-side contact portion) [0583] 72B external-side contact portion of fourth relay terminal (fourth external-side contact portion) [0584] 80 relay housing (counterpart housing) [0585] 85 terminal projection portion (adjacent support portion) [0586] 85a lower face [0587] 87 downward abutting protrusion [0588] 90 add member [0589] 90A add member [0590] 91 bulge portion (add-side contact portion, other-side contact portion) [0591] 91A bulge portion (add-side contact portion, other-side contact portion)