TERMINAL POSITION ASSURANCE DEVICE WITH SEALING
20230307866 · 2023-09-28
Assignee
Inventors
- Stanrich Dwayne Fernandes (Harrisburg, PA, US)
- Emma L. WORKMAN (Camp Hill, PA, US)
- David SWARTZ (York, PA, US)
- William G. Lindberg (Elizabethtown, PA, US)
- Vinayakumar SHETTAR (Mechanicsburg, PA, US)
- Richard C. BATLEY (York Springs, PA, US)
Cpc classification
H01R13/5219
ELECTRICITY
International classification
Abstract
A terminal position assurance member for use with an electrical connector. The terminal position assurance member includes a rigid frame member and one or more compressible seals. The rigid frame member extends from a conduct receiving surface of the terminal position assurance member to a connector mating surface of the terminal position assurance member. The one or more compressible seals cooperate with the rigid frame member to provide sealing between the rigid frame member, a housing of the electrical connector and conductors inserted into the terminal position assurance member. Any insertion force applied to the conductor receiving surface of the rigid frame member will be translated through the rigid frame member to one or more terminals of the electrical connector, allowing the one or more seals to remain compressible to provide the sealing characteristics required.
Claims
1. A terminal position assurance member for use with an electrical connector, the terminal position assurance member comprising: a rigid frame member extending from a conduct receiving surface of the terminal position assurance member to a connector mating surface; one or more compressible seals cooperating with the rigid frame member to provide sealing between the rigid frame member, a housing of the electrical connector and conductors inserted into the terminal position assurance member; wherein any insertion force applied to the conductor receiving surface of the rigid frame member will be translated through the rigid frame member to one or more terminals of the electrical connector, allowing the one or more seals to remain compressible to provide the sealing characteristics required.
2. The terminal position assurance member as recited in claim 1, wherein the one or more seals include one or more interface seals and one or more rear seals.
3. The terminal position assurance member as recited in claim 2, wherein the rigid frame member has a main body portion with terminal receiving projections extending to the connector mating surface.
4. The terminal position assurance member as recited in claim 3, wherein interface seal receiving recesses extend around an outer periphery of the terminal receiving projections, terminal receiving passages extend through the terminal receiving projections.
5. The terminal position assurance member as recited in claim 3, wherein rear seal receiving recesses extend from the terminal receiving projections to the conductor receiving surface.
6. The terminal position assurance member as recited in claim 1, wherein latches extend from side surfaces of the rigid frame member.
7. The terminal position assurance member as recited in claim 6, wherein the latches have mounting sections which are secured to the rigid frame member proximate the conductor receiving surface.
8. The terminal position assurance member as recited in claim 6, wherein the latches have resilient arms which extend to latch projection securing sections, the latch projection securing sections have latching shoulders.
9. The terminal position assurance member as recited in claim 3, wherein the interface seals have openings dimensioned to fit around the terminal receiving projections to provide a watertight seal between the terminal receiving projections and the interface seal, outside perimeters of the interface seals dimensioned to be received in the electrical connector and cooperate with terminal walls of cavities in the electrical connector to provide a watertight seal between the terminal walls of the cavities and the interface seal.
10. The terminal position assurance member as recited in claim 5, wherein the rear seals are configured to be inserted into the rear seal receiving recesses.
11. The terminal position assurance member as recited in claim 5, wherein the rear seals have outside surfaces dimensioned to cooperate with walls of rear seal receiving recesses to provide a watertight seal between the walls of rear seal receiving recesses and the rear seal, conductor receiving openings extend through the rear seals, the conductor receiving openings have ribs which cooperate with the conductors to provide a watertight seal between the conductors and the rear seal.
12. The terminal position assurance member as recited in claim 1, wherein the rigid frame member has a crimping portion provided proximate the connector mating surface and an enlarged shoulder provided proximate the conductor receiving surface, a terminal receiving passage extends through the rigid frame member from the connector mating surface to the conductor receiving surface.
13. The terminal position assurance member as recited in claim 12, wherein the one or more compressible seals is a seal having an outer portion and an inner portion.
14. The terminal position assurance member as recited in claim 13, wherein the outer portion is positioned about an outer circumference of a portion of the rigid frame member, the outer portion is dimensioned to fit over the rigid frame member to provide a watertight seal between the rigid frame member and the seal, an outside perimeter of the outer portion of the seal is dimensioned to be received in the electrical connector and cooperate with terminal walls of cavities in the electrical connector to provide a watertight seal between the terminal walls of the cavities and the seal.
15. The terminal position assurance member as recited in claim 13, wherein the inner portion of the seal is configured to be positioned in the terminal receiving passage of the rigid frame member, the inner portion has an outside surface dimensioned to cooperate with a wall of terminal receiving passage to provide a watertight seal between the wall of terminal receiving passage and the inner portion of the seal, conductor receiving openings are provided in the inner portion of the seal, the conductor receiving openings have ribs which cooperate with the conductors to provide a watertight seal between the conductors and the inner portion of the seal.
16. The terminal position assurance member as recited in claim 12, wherein a push member cooperates with the terminal position assurance members, the push member has an engagement portion having slots for receiving conductors thereon.
17. The terminal position assurance member as recited in claim 1, wherein the rigid frame member has terminal engaging portions which extend to the connector mating surface and a push portion extending from the conductor receiving surface, a terminal receiving passage extends through the rigid frame member from the connector mating surface to the conductor receiving surface.
18. The terminal position assurance member as recited in claim 17, wherein terminal receiving passage portions of the seal are configured to be positioned in the terminal receiving passages of the rigid frame member, the terminal receiving passage portions have outside surfaces which are dimensioned to cooperate with walls of terminal receiving passages to provide a watertight seal between the walls of terminal receiving passages and the terminal receiving passage portions of the seal.
19. The terminal position assurance member as recited in claim 18, wherein conductor receiving openings are provided in the terminal receiving passage portions of the seal, the conductor receiving openings have ribs which cooperate with the conductors to provide a watertight seal between the conductors and the terminal receiving passage portions of the seal.
20. The terminal position assurance member as recited in claim 19, wherein the terminal engaging portions of the rigid frame member engage terminal lances of the one or more terminals.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0009]
[0010]
[0011]
[0012]
[0013]
[0014]
[0015]
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
[0023]
[0024]
[0025]
[0026]
DETAILED DESCRIPTION OF THE INVENTION
[0027] The description of illustrative embodiments according to principles of the present invention is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. In the description of embodiments of the invention disclosed herein, any reference to direction or orientation is merely intended for convenience of description and is not intended in any way to limit the scope of the present invention. Relative terms such as “lower,” “upper,” “horizontal,” “vertical,” “above,” “below,” “up,” “down,” “top” and “bottom” as well as derivative thereof (e.g., “horizontally,” “downwardly,” “upwardly,” etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description only and do not require that the apparatus be constructed or operated in a particular orientation unless explicitly indicated as such. Terms such as “attached,” “affixed,” “connected,” “coupled,” “interconnected,” and similar refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
[0028] Moreover, the features and benefits of the invention are illustrated by reference to the preferred embodiments. Accordingly, the invention expressly should not be limited to such embodiments illustrating some possible non-limiting combination of features that may exist alone or in other combinations of features, the scope of the invention being defined by the claims appended hereto.
[0029] Referring to
[0030] As shown in
[0031] In the illustrative embodiment shown in
[0032] In the embodiment shown, three terminal receiving projections 44 are provided. Interface seal receiving recesses 46 extending around the outer periphery of each of the terminal receiving projections 44. Terminal receiving passages 48 extend through each of the terminal receiving projections 44. In the embodiment shown, three terminal receiving passages 48 are provided in each terminal receiving projections 44. However, other numbers and configurations of the terminal receiving projections 44 may be used.
[0033] Rear seal receiving recesses 50 extend from the terminal receiving projections 44 to the conductor receiving surface 34. In the embodiment shown, three rear seal receiving recesses 50 are provided. However, other numbers and configurations of the rear seal receiving recesses 50 may be used.
[0034] Latches 52 extend from side surfaces 54 of the seal block 36. In the illustrative embodiment, the latches 52 have mounting sections 56 which are secured to the seal block 36 proximate the conductor receiving surface 34. The latches 52 have resilient arms 58 which extend from the mounting sections 56 to latch projection securing sections 60. The latch projection securing sections 60 have sloped lead in surfaces 62 and latching shoulders 64. The latching shoulders 64 extend at approximately ninety degrees from the resilient arms 58. In the illustrative embodiment shown, the resilient arms 58a and 58c and longer than the latching arms 58b.
[0035] The interface seals 38 are configured to cooperate with the terminal receiving projections 44. The interface seals 38 are made from a compressible material, such as, but not limited to silicon. Each interface seal 38 has an opening 66(
[0036] The rear seals 40 are configured to be inserted into the rear seal receiving recesses 50. The rear seals 40 are made from a compressible material, such as, but not limited to silicon. As shown in
[0037] In use, the terminal position assurance member 30 is initially provided in the initial latch position, as shown in
[0038] With the terminal position assurance member 30 in the initial latch position, the terminals 74 and conductors 72 are inserted through the conductor receiving openings 68 of the rear seals 40 and through the terminal receiving passages 48 of the terminal receiving projections 44. The terminal position assurance member 30 is then moved to the final latch position, as shown in
[0039] With the terminals 74 properly positioned, the terminal position assurance member 30 is secured in the final latch position by the cooperation of the latch projection securing sections 60 of the resilient arms 58b of latches 52 with the latching shoulders 22 of the terminal position assurance receiving latching projections 18. This provides a visual indication that the terminals 71 and the terminal position assurance member 30 are properly positioned. If the terminals 74 cannot be properly positioned, the terminal position assurance member 30 cannot be moved to the final latch position, providing a visual indication that the terminals 74 are not properly positioned.
[0040] A second illustrative embodiment a terminal position assurance member 130 for use with an illustrative connector 110 is shown in
[0041] As shown in
[0042] In the illustrative embodiment shown, the rigid frame member 136 extends from proximate the connector mating surface 132 to the conductor receiving surface 134. The rigid frame member 136 is made from resin or other material which remains stiff when a compressive force is applied thereto.
[0043] In the embodiment shown, the rigid frame member 136 has a crimping portion 144 provided proximate the connector mating surface 132 and an enlarged shoulder 146 provided proximate the conductor receiving surface 134. A terminal receiving passage 148 extends through the rigid frame member 136 from the connector mating surface 132 to the conductor receiving surface 134.
[0044] The seal 138 is configured to cooperate with the rigid frame member 136. The seal 138 is made from a compressible material, such as, but not limited to silicon. As shown in
[0045] The inner portion 168 of the seal 138 is configured to be positioned in the terminal receiving passage 148 of the rigid frame member 136. The inner portion 168 has outside surface (
[0046] The seal 138 may be positioned on the rigid frame member 136 by a two-stage molding process. Other methods of manufacture, such as, but not limited to, co-molding may also be used.
[0047] The push member 140 (
[0048] Latches 152 extend from side surfaces 154 of the push member 140. In the illustrative embodiment, the latches 152 have mounting sections 156 which are secured to the engagement portion 180. The latches 152 have resilient arms 158 which extend from the engagement portion 180 to latch projection securing sections 160. The latch projection securing sections 160 have latching shoulders 164. The latching shoulders 164 extend at approximately ninety degrees from the resilient arms 158.
[0049] In use, the terminal 174 is crimped to the crimping portion 144 of the rigid frame member 136 of the terminal position assurance member 130, as shown in
[0050] With the terminal 174 and the terminal position assurance member 130 fully inserted, the latch projection securing sections 160 of the resilient arms 158 of latches 152 extend beyond the terminal position assurance receiving latching projections 118, thereby allowing the latching shoulders 164 of the latch projection securing sections 160 to cooperate with the latching shoulders 122 of the terminal position assurance receiving latching projections 118 to prevent the removal of the terminal position assurance member 130 from the electrical connector 110.
[0051] As the rigid frame member 136 extends from the conductor receiving surface 134 to proximate the connector mating surface 132, any force applied to the conductor receiving surface 134 will be translated through the rigid frame member 136 to the terminal 174 which is attached to the rigid frame member 136. As the forces are translated through the rigid frame member 136, the seal 138 remains compressible to provide the sealing characteristics required. Consequently, the terminal position assurance member 130 provides the rigidity required to properly position the terminals 174, while providing the sealing characteristic required to prevent the ingress of water, dust or other unwanted contaminates.
[0052] A third illustrative embodiment a terminal position assurance member 230 for use with an illustrative connector 210 is shown in
[0053] As shown in
[0054] In the illustrative embodiment shown, the rigid frame member 236 extends from the connector mating surface 232 to the conductor receiving surface 234. The rigid frame member 236 is made from resin or other material which remains stiff when a compressive force is applied thereto.
[0055] In the embodiment shown, the rigid frame member 236 has terminal engaging portions 244 which extend to the connector mating surface 232 and a push portion 246 extending from the conductor receiving surface 234. A terminal receiving passage 248 extends through the rigid frame member 236 from the connector mating surface 232 to the conductor receiving surface 234.
[0056] The seal 238 is configured to cooperate with the rigid frame member 236. The seal 238 is made from a compressible material, such as, but not limited to silicon. In the embodiment shown, the seal 238 is over molded over the terminal engaging portions 244. The seal 238 also has retention members 266 which extend into opening 268 of the push portion 246.
[0057] The seal 238 is dimensioned to fit tightly over the rigid frame member 236 to provide a watertight seal between the rigid frame member 236 and the seal 236. The outside perimeter of the seal 238 is dimensioned to be received in the electrical connector 210 and cooperate with walls of cavities in the electrical connector to provide a watertight seal between the terminal walls of the cavities and the seal 238.
[0058] Terminal receiving passage portions 268 (
[0059] The seal 238 may be positioned on the rigid frame member 236 by a co-molding process. Other methods of manufacture, such as, but not limited to, two stage molding may also be used.
[0060] Latches 252 extend from the push portion 246. In the illustrative embodiment, the latches 252 have mounting sections 256 which are secured to the push portion 246. The latches 252 have resilient arms 258 which extend from the push portion 246 to latch projection securing sections 260 with latching shoulders 264. The latching shoulders 264 extend at approximately ninety degrees from the resilient arms 258.
[0061] In use, the terminals 274 with terminal lances 275 which are terminated to the conductors are inserted into the electrical connector 210, as shown in
[0062] With the terminal 274 and the terminal position assurance member 230 fully inserted, the latch projection securing sections 260 of the resilient arms 258 of latches 252 extend beyond the terminal position assurance receiving latching projections 218, thereby allowing the latching shoulders 264 of the latch projection securing sections 260 to cooperate with the latching shoulders 222 of the terminal position assurance receiving latching projections 218 to prevent the removal of the terminal position assurance member 230 from the electrical connector 210.
[0063] As the rigid frame member 236 extends from the conductor receiving surface 234 to the connector mating surface 232, any force applied to the conductor receiving surface 234 will be translated through the rigid frame member 236 to the terminal 274. As the forces are translated through the rigid frame member 236, the seal 238 remains compressible to provide the sealing characteristics required. Consequently, the terminal position assurance member 230 provides the rigidity required to properly position the terminals 274, while providing the sealing characteristic required to prevent the ingress of water, dust or other unwanted contaminates.
[0064] While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made, and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention as defined in the accompanying claims. One skilled in the art will appreciate that the invention may be used with many modifications of structure, arrangement, proportions, sizes, materials and components and otherwise used in the practice of the invention, which are particularly adapted to specific environments and operative requirements without departing from the principles of the present invention. The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being defined by the appended claims, and not limited to the foregoing description or embodiments.