SHIELDED TERMINAL
20230163539 · 2023-05-25
Inventors
Cpc classification
H01R9/0518
ELECTRICITY
International classification
Abstract
An outer conductor 13 includes a connection member 23 and an attachment member 24, 24A that is separate from the connection member 23. The connection member 23 includes a tubular part 25 and an extension part 26 that extends in a direction crossing the tubular part 25. The attachment member 24, 24A includes a crimp part 59, 59A that covers an outer surface of the extension part 26 and is crimped to the shielded electrical wire 90, 90A with the extension part 26 interposed therebetween. The extension part 26 and the tubular part 25 form an L shape in a side view, and are continuous with each other via an inner corner part 36 formed between outer surfaces of the extension part 26 and the tubular part 25.
Claims
1. A shielded terminal comprising an outer conductor connected to a shield part of a shielded electrical wire, wherein the outer conductor includes a connection member and an attachment member that is separate from the connection member, the connection member includes a tubular part and an extension part that extends in a direction intersecting the tubular part, the attachment member includes a crimp part that is crimped to the shielded electrical wire with the extension part interposed therebetween while covering an outer surface of the extension part, and the extension part and the tubular part form an L shape in a side view, and are continuous with each other via an inner corner part formed between outer surfaces of the extension part and the tubular part.
2. The shielded terminal according to claim 1, wherein the crimp part includes a base part that is in contact with the outer surface of the extension part and a barrel that protrudes from the base part and surrounds the shielded electrical wire, and a side of the base part on which the barrel is positioned and a side of the base part on which the tubular part is positioned are opposite to each other.
3. The shielded terminal according to claim 1, wherein the connection member includes, separate to the extension part, an interposing part that is bent and connected to the tubular part and is sandwiched between the shielded electrical wire and the crimp part, and the crimp part includes a blocking part that closes a gap formed between the extension part and the interposing part.
4. The shielded terminal according to claim 1, wherein an insulating dielectric body is disposed between the outer conductor and the inner conductor, the dielectric body includes an insertion part that is disposed inside the tubular part and a dielectric body part that extends in a direction intersecting the insertion part and is disposed along the extension part, the connection member includes an opposing extension part at a position opposing the extension part, the opposing extension part and the tubular part form an L shape in a side view and are continuous via an outer corner part formed between outer surfaces of the opposing extension part and the tubular part, and the opposing extension part is capable of pivoting to an open position and a closed position around the outer corner part with respect to the tubular part, the inside of the tubular part is open at the open position, and the dielectric body part is sandwiched between the opposing extension part and the extension part at the closed position.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
[0021] In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here.
[0022] First, embodiments of the present disclosure will be listed and described.
[0023] (1) A shielded terminal of the present disclosure is a shielded terminal including an outer conductor connected to a shield part of a shielded electrical wire, wherein the outer conductor includes a connection member and an attachment member that is separate from the connection member, the connection member includes a tubular part and an extension part that extends in a direction intersecting the tubular part, the attachment member includes a crimp part that is crimped to the shielded electrical wire with the extension part interposed therebetween while covering an outer surface of the extension part, and the extension part and the tubular part form an L shape in a side view, and are continuous with each other via an inner corner part formed between outer surfaces of the extension part and the tubular part.
[0024] According to the foregoing configuration, the extension part and the tubular part are continuous with each other via the inner corner part and no gap is formed at the inner corner part, and thus it is possible to improve the shielding performance. Since the attachment member has the crimp part and the connection member has the tubular part, it is possible to improve the degree of freedom in forming of the crimp part and the tubular part in comparison to the case where the crimp part and the tubular part are formed in one external conductor.
[0025] (2) It is preferable that the crimp part includes a base part that is in contact with the outer surface of the extension part and a barrel that protrudes from the base part and surrounds the shielded electrical wire, and a side of the base part on which the barrel is positioned and a side of the base part on which the tubular part is positioned are opposite to each other.
[0026] According to the foregoing configuration, it is possible to avoid the interference between a die for deforming the barrel and the tubular part in the course of crimping of the crimp part to the shielded electrical wire.
[0027] (3) It is preferable that the connection member includes, separate to the extension part, an interposing part that is bent and connected to the tubular part and is sandwiched between the shielded electrical wire and the crimp part, and the crimp part includes a blocking part that closes a gap formed between the extension part and the interposing part.
[0028] According to the foregoing configuration, the gap between the extension part and the interposing part can also be closed by the blocking part of the attachment member, and thus the shielding performance can be further improved.
[0029] (4) It is preferable that an insulating dielectric body is disposed between the outer conductor and the inner conductor, the dielectric body includes an insertion part that is disposed inside the tubular part and a dielectric body part that extends in a direction intersecting the insertion part and is disposed along the extension part, the connection member includes an opposing extension part at a position opposing the extension part, the opposing extension part and the tubular part form an L shape in a side view and are continuous via an outer corner part formed between outer surfaces of the opposing extension part and the tubular part, and the opposing extension part is capable of pivoting to an open position and a closed position around the outer corner part with respect to the tubular part, the inside of the tubular part is open at the open position, and the dielectric body part is sandwiched between the opposing extension part and the extension part at the closed position.
[0030] According to the foregoing configuration, when the opposing extension part is at the open position, the insertion part of the dielectric body can be inserted into the tubular part and the dielectric body part can be supported by the extension part. When the opposing extension part is at the closed position, the dielectric body part is sandwiched between the opposing extension part and the extension part. Further, the crimp part is crimped to the shielded electrical wire so that displacement of the opposing extension part to the open position is regulated. At the same time, detachment of the dielectric body from the outer conductor is also regulated.
DETAILS OF EMBODIMENTS OF PRESENT DISCLOSURE
[0031] Specific examples of the present disclosure will be described below with reference to the drawings. It should be noted that the present invention is not limited to the examples herein, but rather is indicated by the scope of claims, and is intended to include all modifications within a meaning and scope equivalent to the scope of claims.
First Embodiment
[0032] As shown in
[0033] Shielded Electrical Wire
[0034] As shown in
[0035] Inner Conductor
[0036] The inner conductor 11 is integrally formed by bending a metal plate or the like. As shown in
[0037] Dielectric Body
[0038] As shown in
[0039] As shown in
[0040] As shown in
[0041] Outer Conductor
[0042] The outer conductor 13 is integrally formed by bending one metal plate. As shown in
[0043] As shown in
[0044] The tubular part 25 is disposed with the axial center thereof oriented in the vertical direction. The counterpart outer conductor of the counterpart shielded terminal (not shown) is inserted into the tubular part 25 from above.
[0045] An upper part 32 of the tubular part 25 is provided with a plurality of elastic contact parts 28 (only one is shown in
[0046] As shown in
[0047] The extension part 26 is formed so as to be bent extending rearward from the lower rear end part of the upper part 32 of the tubular part 25. The extension part 26 is disposed above the open ends 35 of the engagement parts 34. As shown in
[0048] As shown in
[0049] The opposing extension part 37 is disposed on the lower side relative to the open ends 35 of the engagement parts 34. The opposing extension part 37 and the tubular part 25 form an L shape in a side view, and are continuously connected via an outer corner part 38 that is a corner part on the outer side of the L shape. The outer corner part 38 is formed between the outer surface (lower surface) of the opposing extension part 37 and the outer surface (front surface) of the tubular part 25.
[0050] As shown in
[0051] The interposing part 27 also has a pair of the lateral extension parts 41 that respectively extend rearward from the rear ends of the side wall parts 39. As shown in
[0052] The electrical wire holding parts 43 each have an arc-shaped cross section and are disposed along the outer peripheral surface of the shield part 93 of the shielded electrical wire 90. As shown in
[0053] As shown in
[0054] As shown in
[0055] Next, the attachment member 24 will be described. The attachment member 24 has a shape extending in the front-rear direction. As shown in
[0056] The base part 47 has a band plate shape extending in the front-rear direction. A flat surface part 52 is provided at the front part of the base part 47. As shown in
[0057] A rearward base part 55 is formed at the rear part of the base part 47. The barrels 48 each have a plate piece shape and respectively protrude downward from the left and right ends of the front part of the rearward base part 55. As shown in
[0058] The sheath barrels 49 each have a plate piece shape and respectively protrude downward from the left and right ends of the rear part of the rearward base part 55. The sheath barrels 49 are crimped to the sheath 94 of the shielded electrical wire 90. The sheath barrels 49 correspondingly have a recessed part 57 and a protruding part 58 at the leading ends thereof. In a state in which the sheath barrels 49 are connected to the sheath 94 of the shielded electrical wire 90, the sheath barrels 49 and the rearward base part 55 form a tubular shape, and the recessed part 57 and the protruding part 58 are matched and engaged with each other. At the rear part of the attachment member 24, the barrels 48, the sheath barrels 49, and the rearward base part 55 constitute the crimp part 59 in the present disclosure.
[0059] As shown in
[0060] Attachment Method and Operation of Shielded Terminal
[0061] First, in the connection member 23, the interposing part 27 is brought to the open position with respect to the tubular part 25 (see
[0062] The lower wall 19 of the dielectric body part 17 is brought into the open state, and the inner conductor 11 is inserted into an inner conductor housing space 51 of the dielectric body 12 from below in the drawing (actually, from above). The inner conductor 11 is connected in advance to the terminal portion of the shielded electrical wire 90. Once the inner conductor 11 has been inserted into the dielectric body 12, the counterpart inner conductor connection part 15 is disposed inside the insertion part 16, and the core wire crimp part 14 is disposed inside the dielectric body part 17. Subsequently, the interposing part 27 is pivoted around the pivot center part 46 and brought to the closed position with respect to the tubular part 25 (see
[0063] The attachment member 24 is overlaid on the outside of the connection member 23 and the crimp part 59 of the attachment member 24 is set in a crimping die (not shown). In this state, the barrels 48 are pressed and deformed inward by a movable die (not shown). The electrical wire holding parts 43 are pressed and deformed inward by the barrels 48. Accordingly, the barrels 48 are crimped to the shield part 93 of the shielded electrical wire 90 via the electrical wire holding parts 43. As a result, the outer conductor 13 is electrically connected to the shield part 93 of the shielded electrical wire 90 (see
[0064] Simultaneously with or before or after the crimping of the barrels 48, the sheath barrels 49 are crimped directly to the sheath 94 of the shielded electrical wire 90 and thus mechanically connected thereto. Since the un-shown movable die is arranged on the side on which the barrels 48 and the sheath barrels 49 are positioned, it is easy to avoid interference with the tubular part 25.
[0065] In the state in which the attachment member 24 is attached to the connection member 23 as described above, the gap G1 between the extension part 26 and the interposing part 27 is covered by the blocking parts 51 and the crimp part 59, and the gap G2 between the tubular part 25 and the interposing part 27 is also covered by the blocking parts 51. Since the extension part 26 and the tubular part 25 are continuous with each other in an L shape in a side view with the inner corner part 36 therebetween, no cut appears at the position of the inner corner part 36 (see
Second Embodiment
[0066] A shielded terminal 10A in a second embodiment is connected to a shielded electrical wire 90A that is smaller in diameter than the shielded electrical wire 90 in the first embodiment, as shown in
[0067] A pair of the second barrels 62 of the crimp part 59A are provided between the sheath barrels 49 and barrels 48. The second barrels 62 form an open barrel shape similar to the sheath barrels 49 and the barrels 48, and respectively protrude from left and right ends of the rearward base part 55.
[0068] The second barrels 62 are directly crimped and electrically connected to the shield part 93 of the shielded electrical wire 90A rearward of the connection member 23. The diameter of the tubular shape of the second barrels 62, more specifically, the diameter of a tubular shape formed by the second barrels 62 and the rearward base part 55 is made smaller than the diameters of tubular shapes formed by the barrels 48 and the sheath barrels 49.
[0069] According to the second embodiment, since the second barrels 62 are directly crimped to the shield part 93 of the shielded electrical wire 90A, it is possible to stably maintain the connection state between the shielded electrical wire 90A and the outer conductor 13.
Other Embodiments of Present Disclosure
[0070] It should be noted that the embodiments disclosed herein are examples in every respect and are not limiting.
[0071] In the first and second embodiments, the connection member is provided with a pair of lateral extension parts. However, in another embodiment, at least one of the pair of lateral extension parts may be omitted from the connection member.
[0072] In the first and second embodiments, the connection member is provided with the shield part. However, in another embodiment, the shield part may be omitted from the connection member.
[0073] In the first and second embodiments, the attachment member is provided with the sheath barrels. However, in another embodiment, the sheath barrels may be omitted from the attachment member. For example, the connection member may be provided with the sheath barrels.
[0074] In the first and second embodiments, the inner corner part connects the tubular part and the extension part at a right angle. However, in another embodiment, the inner corner part may curvedly connect the tubular part and the extension part.
[0075] From the foregoing, it will be appreciated that various exemplary embodiments of the present disclosure have been described herein for purposes of illustration, and that various modifications may be made without departing from the scope and spirit of the present disclosure. Accordingly, the various exemplary embodiments disclosed herein are not intended to be limiting, with the true scope and spirit being indicated by the following claims.