PUSH LOCK ELECTRICAL CONNECTOR

• US 20140134871A1
• Filed: 10/18/2013
• Published: 05/15/2014
• Est. Priority Date: 10/19/2012
• Status: Active Grant

• Current Assignee: Woodhead Industries Incorporated (Molex Incorporated)
• Original Assignee: Woodhead Industries Incorporated (Molex Incorporated)
• Inventors: Murphy, Joseph F., Jozwik, Keith A., Comini, Riccardo
• Granted Patent: US 9,142,914 B2
• Time in Patent Office: Days
• US Class Current: 439/350
• CPC Class Codes: H01R 13/5219 Sealing means between coupling parts, e.g. interfacial seal
• CPC Class Codes: H01R 13/622 Screw-ring or screw-casing H01R13/623 takes precedence
• CPC Class Codes: H01R 13/6273 comprising two latching arms
• CPC Class Codes: H01R 2107/00 Four or more poles

Abstract

An inline multi-pin connector includes cylindrical male and female connector members which are electrically connected together by pushing the two members together end-to-end. Either the male or the female connector member has a metal cylinder disposed about its conductive pins or sockets, which are adapted for mutual engagement, while the other connector member is provided with inner threads. The metal cylinder includes plural resilient, spaced arms, or tabs, disposed about its outer periphery and urged radially outward and into engagement with the other member'"'"'s threads to connect the two connector members. Coaxial seals are disposed between and in contact with the two members as is a compressible O-ring seal. The outer periphery of the inner member'"'"'s cylindrical insulator is provided with alternating peaks and valleys, while the other member'"'"'s metal cylinder is provided with inwardly extending resilient arms which are adapted for positioning within a respective facing valley to prevent vibration-induced disconnection.

Claims

1. A push-lock electrical connector including male and female connector members having respective plural conductive pins and sockets adapted for mutual engagement in forming electrical connections, the electrical connector comprising:

a hollow cylindrical member attached to either a first male or female connector member aligned with and disposed about the conductive pins and/or sockets, said cylindrical member having plural spaced radially resilient members formed or extending from a lateral portion of said cylindrical member; and

a cylindrical coupling sleeve attached to a second male or female connector member not attached to said hollow cylindrical member, said coupling sleeve having threads disposed on a lateral portion of said coupling sleeve, with said cylindrical member and said coupling sleeve aligned with one another and moved together so that one connector member receives the other in an overlapping manner along a common axis with each conductive pin engaging a respective socket, wherein said resilient members are urged in a first opposed radial direction and engage the threads of said coupling sleeve for coupling the male and female connector members together in a threaded manner.

2. The electrical connector of claim 1, wherein said hollow cylindrical member is comprised of metal.

3. The electrical connector of claim 2, wherein said metal is heat treated beryllium copper.

4. The electrical connector of claim 2, wherein said resilient members are formed integrally with said cylindrical member.

5. The electrical connector of claim 2, wherein said resilient members are in the form of stamped portions of said cylindrical member.

6. The electrical connector of claim 1 comprising four (4) resilient members equally spaced about the outer periphery of said hollow cylindrical member.

7. The electrical connector of claim 1, wherein said coupling sleeve is disposed about said cylindrical member and said resilient members extend radially outward from said cylindrical member toward and into engagement with an inner threaded portion of said coupling sleeve.

8. The electrical connector of claim 1, wherein said resilient members are disposed on a lateral surface of said cylindrical member in a spiral array to match a pitch of the threads on said coupling sleeve.

9. The electrical connector of claim 1 further comprising an insulator insert disposed within said first male or female connector member and in contact with an inner portion of said cylindrical member.

10. The electrical connector of claim 9, wherein said insulator insert is comprised of plastic, or other material with high dielectric properties.

11. The electrical connector of claim 9 further comprising first and second seal means disposed between and in tight-fitting contact with said insulator insert and the second male or female connector member.

12. The electrical connector of claim 11, wherein said first and second seal means include respective plural generally circular seals disposed in a spaced manner along an axis defined by said first and second male or female connector members.

13. The electrical connector of claim 1, wherein said cylindrical member is disposed co-axially within and along a portion of the length of said coupling sleeve.

14. The electrical connector of claim 9 further comprising third seal means including an 0-ring disposed between and in tight-fitting contact with said insulator insert and said second male or female connector member.

15. The electrical connector of claim 1 further comprising a cylindrical insulator insert disposed within said hollow cylindrical member and having disposed on an outer lateral surface thereof alternating upraised and recessed portions, and wherein said hollow cylindrical member includes at least one radially inward directed resilient arm adapted for positioning in and engaging a respective recessed portion of said insulator insert for preventing rotational displacement between, and disconnection of, the male and female connector members arising from vibration of the electrical connector.

16. The electrical connector of claim 15, wherein said cylindrical member includes plural radially inward directed resilient arms each adapted for positioning in and engaging a respective recessed portion of said insulator insert.

17. The electrical connector of claim 15, wherein said resilient arms are formed integral with said cylindrical member.

18. The electrical connector of claim 17, wherein said resilient arms are formed by stamping said cylindrical member.

19. The electrical connector of claim 17, wherein said cylindrical member includes plural pairs of resilient arms disposed in a spaced manner about its inner periphery, and wherein each pair of said resilient arms is adapted for positioning within and engaging a respective pair of recessed portions of said insulator insert.

20. The electrical connector of claim 1, wherein said cylindrical member includes plural spaced longitudinal slots in a lateral portion thereof, wherein said longitudinal slots form said plural radially resilient members, said electrical connector further comprising deflection means for engaging and urging radially outward or inward the distal ends of said resilient members and into engagement with the threads of said coupling sleeve.

21. The electrical connector of claim 20, wherein said cylindrical member includes four (4) longitudinal, linear slots forming four (4) radially resilient members in the lateral portion of said cylindrical member.

22. The electrical connector of claim 20, where in each of said resilient members includes at least one respective projection on a surface thereof adapted to engage the threads of said coupling sleeve for threadably connecting the male and female connector members.

23. The electrical connector of claim 20 further comprising a generally cylindrical first insulator insert disposed in closely spaced relation within said hollow cylindrical member, wherein said cylindrical member is free to move axially along the length of said insulator insert, said insulator insert having a circumferential end portion adapted to engage and urge said resilient arms radially outward or inward and into engagement with the threads of said coupling sleeve.

24. The electrical connector of claim 23, wherein the circumferential end portion of said insulator insert includes an axially expanded or reduced ring disposed on an end of said insulator insert and having an outer tapered surface adapted to engage and urge radially outward or inward the distal ends of said resilient arms such that the projections of said resilient arms are urged into engagement with the threads of said coupling sleeve.

25. The electrical connector of claim 24, wherein the outer projections of the cylindrical member'"'"'s resilient arms are in mutual alignment at an inclined angle relative to a longitudinal axis of said cylindrical member, and wherein said inclined angle matches an inclined angle of the threads.

26. The electrical connector of claim 24 further comprising a seal member disposed between and in intimate contact with said first insulator insert and a second insulator insert in a second male or female connector member coupled to said first male or female connector member.

27. The electrical connector of claim 26, wherein said seal member is in contact with an end of said first insulator insert and is compressed by said first insulator insert and said second insulator when said first male or female connector member is rotationally displaced about said threads and tightened on said second male or female connector member.

28. The electrical connector of claim 27, wherein said seal member is in the form of a circular 0-ring and is further in contact with a portion of said threads.

29. The electrical connector of claim 28 further comprising a first cylindrical coupling sleeve disposed on said first or male connector member and adapted for manual engagement and displacement along said first male or female connector member.

30. The electrical connector of claim 29, wherein said first coupling sleeve is fixedly attached to said cylindrical member to facilitate manual rotational displacement of said cylindrical member on the threads of said second coupling sleeve for coupling or de-coupling the male and female connector members.

31. The electrical connector of claim 30, wherein said cylindrical member includes plural spaced end tabs and said first coupling sleeve includes plural spaced slots, and wherein each slot is adapted to receive and securely engage a respective tab for fixedly attaching said cylindrical member to said first coupling sleeve.

32. The electrical connector of claim 24, wherein said ring is formed integrally with said insulator insert.

33. The electrical connector of claim 1, wherein said resilient members are initially deflected radially in a second direction by said cylindrical coupling sleeve upon insertion of said cylindrical member into said coupling sleeve, wherein said second radial direction is opposed to said first radial direction.

34. The electrical connector of claim 1, wherein said first radial direction is outward and said second radial direction is inward.