ELECTRICAL CONNECTOR WITH LOCKING CLIP

• US 20100093205A1
• Filed: 10/13/2009
• Published: 04/15/2010
• Est. Priority Date: 10/14/2008
• Status: Active Grant

• Current Assignee: Woodhead Industries Incorporated (KOCH Industries Incorporated)
• Original Assignee: Woodhead Industries Incorporated (KOCH Industries Incorporated)
• Inventors: Stone, Randall G., Adjunta, Jimmy E., Murphy, Joseph F.
• Granted Patent: US 7,862,366 B2
• Time in Patent Office: Days
• US Class Current: 439/352
• CPC Class Codes: H01R 13/5219 Sealing means between coupling parts, e.g. interfacial seal
• CPC Class Codes: H01R 13/6277 comprising annular latching means, e.g. ring snapping in an annular groove
• CPC Class Codes: H01R 13/633 for disengagement only in combination with safety switch H01R13/7132
• CPC Class Codes: H01R 13/639 Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
• CPC Class Codes: H01R 43/22 Hand tools
• CPC Class Codes: H01R 9/03 Connectors arranged to contact a plurality of the conductors of a multiconductor cable , e.g. tapping connections

Abstract

An electrical connector assembly includes first male and second female connectors having respectively a generally annular locking spring with inwardly directed flexible tines and an outer cylindrical coupling member. The tines are deflected outwardly by the outer coupling member when the second connector is inserted into the first connector for coupling the connectors. A locking clip having a pair of identical, semi-cylindrical mating sections adapted for mutual engagement and manual assembly about the coupled first and second connectors locks the two connectors together to prevent inadvertent disconnection. An uncoupling tool adapted for insertion in respective opposed slots in the two connected mating sections of the lock clip engages and axially displaces a release sleeve in one of the connectors, which, in turn, engages and outwardly deflects the locking clip'"'"'s tines permitting the non-destructive separation of the two connectors.

Claims

1. An electrical connector assembly comprising:

first and second generally cylindrical electrical connectors adapted for mutual engagement for establishing electrical contact between the two electrical connectors, wherein said first electrical connector includes a deformable, resilient, annular locking spring disposed on an outer surface thereof and defines a receiving opening, and wherein said second electrical connector includes an outer cylindrical coupling member thereon;

an axially slidable actuator sleeve disposed about and in contact with said first connector and adapted for sliding engagement with said second connector when said connectors are engaged, wherein said actuator sleeve engages said locking spring to increase the size of said receiving opening thereby releasing said second connector from said first connector when said actuator sleeve slides in a direction away from said second electrical connector;

a locking clip having two generally cylindrical mating sections and adapted for assembly and non-removable positioning about adjacent portions of said first and second electrical connectors to prevent inadvertent disconnection of said first and second electrical connectors, wherein each of said mating sections has a respective access opening therein, with said access openings disposed in opposing portions of said locking clip, and wherein said locking clip covers and prevents manual manipulation of said actuator sleeve; and

an uncoupling tool having first and second spaced-apart legs each adapted for insertion into a respective access opening of a mating section of said locking clip for engaging and displacing said actuator sleeve along an axis defined by said first and second electrical connectors so as to deflect an inner portion of said locking spring outward and release the second electrical connector'"'"'s coupling member from said locking spring, thereby permitting separation of said first and second electrical connectors.

2. The electrical connector assembly of claim 1, wherein the outer cylindrical coupling member of said second electrical connector includes a circumferential groove therein adapted for receiving said locking spring in a tight-fitting manner.

3. The electrical connector assembly of claim 1, wherein said locking spring is in the form of a circular, generally flat washer having plural resilient, inwardly extending tines adapted for positioning in said circumferential groove when said first and second electrical connectors are in mutual engagement.

4. The electrical connector assembly of claim 3, wherein an inner portion of said actuator sleeve engages and outwardly deflects said tines when said uncoupling tool displaces said actuator sleeve along the electrical connector axis.

5. The electrical connector assembly of claim 4, wherein said tines on said flat washer further extend in a direction along said axis away from said second electrical connector.

6. The electrical connector assembly of claim 1, wherein said actuator sleeve engages said locking spring and is urged in a first direction toward said second electrical connector by said locking spring when said first and second connectors are in mutual engagement.

7. The electrical connector assembly of claim 6, wherein said uncoupling tool overcomes the urging of said locking spring on said actuator sleeve so as to displace said actuator sleeve in a second, opposed direction when said uncoupling tool is inserted into said locking clip for separating the first and second electrical connectors.

8. The electrical connector assembly of claim 7, wherein the first and second legs of said uncoupling tool are tapered toward a distal end of a leg so that, as said legs are further inserted into a respective aperture of the locking clip, said actuator sleeve is further displaced along said axis and an inner portion of said locking spring is further deflected outwardly for separating said first and second electrical connectors.

9. The electrical connector assembly of claim 8, wherein each of the locking clip'"'"'s cylindrical mating sections further includes an inner circumferential groove continuous with an associated access opening in the mating section, and wherein said actuator sleeve includes an outer circumferential rib disposed within the inner circumferential groove of said locking clip when said first and second connectors are in mutual engagement.

10. The electrical connector assembly of claim 9, wherein the access openings of the locking clip'"'"'s cylindrical mating sections are in the form of elongated outer slots disposed about a portion of the outer periphery of each of said mating sections and extending into the locking clip'"'"'s inner circumferential groove.

11. The electrical connector assembly of claim 10, wherein the tapered legs of said uncoupling tool are disposed between and engage the actuator sleeve'"'"'s outer circumferential rib and an inner portion of the locking clip defining its inner circumferential groove so as to displace said actuator sleeve along said axis in a direction away from said second electrical connector thereby increasing the size of a receiving opening of said locking spring for separating said first and second electrical connectors.

12. The electrical connector assembly of claim 1, wherein opposed ends of the locking clip'"'"'s cylindrical mating sections include respective complementary tongues and receptacles for securely connecting said first and second mating sections.

13. The electrical connector assembly of claim 12, where each of said tongues includes a respective barbed tongue extension and each of said receptacles includes a respective inner groove adapted to receive a barbed tongue extension allowing said locking clip to be assembled manually in a snap-acting manner.

14. The electrical connector assembly of claim 13, wherein said first electrical connector includes a generally circular end opening for receiving said second electrical connector in a tight-fitting manner.

15. The electrical connector assembly of claim 1, wherein the apertures in the locking clip'"'"'s mating sections are in the form of elongated slots aligned generally transverse to the axis defined by said first and second electrical connectors.

16. The electrical connector assembly of claim 1, wherein said locking clip is comprised of high strength plastic.

17. The electrical connector assembly of claim 1, wherein said first electrical connector includes an overmold and a receiving sleeve disposed in spaced relation along said axis, and wherein said locking clip includes a retainer flange on one end thereof, and wherein the retainer flange of said locking clip is disposed intermediate said overmold and said receiving sleeve for maintaining said locking clip in position on said first electrical connector.

18. The electrical connector assembly of claim 1, wherein said uncoupling tool is generally U-shaped.

19. The electrical connector assembly of claim 1, wherein the two mating sections of said locking clip are identical in size and configuration.