Snap lock connector

• US 7,189,097 B2
• Filed: 12/08/2005
• Issued: 03/13/2007
• Est. Priority Date: 02/11/2005
• Status: Active Grant

• Current Assignee: Winchester Interconnect Corporation (Aptiv PLC)
• Original Assignee: Winchester Electronics Corporation (Aptiv PLC)
• Inventors: Benham, John E.
• Primary Examiner(s): Ta; Tho D.
• Assistant Examiner(s): GIRARDI, VANESSA MARY
• Application Number:
  US11/296,336
• Publication Number:
  US 20060183375A1
• Time in Patent Office: 460 Days
• Field of Search: 439/744, 439/745, 439/871, 439/578, 439/352, 439/675, 439/609, 439/357
• US Class Current: 439/352
• CPC Class Codes: H01R 13/629 Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances separate tools or apparatus H01R43/26
• CPC Class Codes: H01R 13/633 for disengagement only in combination with safety switch H01R13/7132
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/40 specially adapted for high frequency
• CPC Class Codes: H01R 4/48 utilising a spring, clip, or other resilient member H01R4/52 takes precedence

Abstract

The present invention, in one aspect, provides a connector apparatus that can be used in, among other things, applications requiring RF or high-speed digital electrical signals.

Claims

1. A connector apparatus comprising:

a socket, comprising;

a socket housing;

an insulator disposed within said socket housing;

a first contact disposed within said insulator;

a lock ring disposed about a distal end of said housing;

a shroud disposed about said distal end of said socket housing and said lock ring and moveable relative to said socket housing between a first position and a second position, said shroud having an outer wall and an inner wall, wherein, said shroud and said lock ring are configured so that when said shroud moves from said first position to said second position, said inner wall contacts said lock ring and causes said lock ring to flex outwardly; and

a plug comprising;

a generally cylindrical, conductive plug housing that houses an insulator and a contact disposed within the insulator, wherein, on its outer wall, the plug housing has a protuberance having a first sloping surface on one side thereof and a second sloping surface on an opposite side thereof,

wherein, the socket is configured such that when the plug is inserted into the distal end of the socket and locked in place by the lock ring, the lock ring exerts an axial force on the protuberance of the plug housing, but the axial force does not cause the front surface of the plug housing to press against neither any surface nor component of the socket.

2. The apparatus of claim 1, wherein the inner wall of the shroud has two major surfaces, an inner surface and an outer surface, wherein the outer surface of the inner wall is not parallel with the inner surface of the inner wall so that the two surfaces converge to form an annular ridge.

3. The apparatus of claim 1, wherein the socket further comprises a ground contact housed within said socket housing, wherein said ground contact is metallic and is configured to electrically connect the socket housing with plug housing when the plug housing is fully inserted into the socket housing.

4. The apparatus of claim 3, wherein the ground contact is annular.

5. The apparatus of claim 3, wherein the ground contact is in the form of a split ring.

6. The apparatus of claim 3, wherein the ground contact is housed within an annular groove located in an inner surface of the socket housing.

7. The apparatus of claim 3, wherein the ground contact is arranged so that it is coaxial with the socket housing.

8. The apparatus of claim 3, wherein the ground contact includes a first split ring, a second split ring and one or more generally U shaped contacts connecting the first split ring with the second split ring, wherein the split rings are arranged so that they are coaxial.

9. The apparatus of claim 8, wherein the first split ring and the second split ring have substantially the same inner and outer diameters, but the width of the first split ring is substantially greater then the width of the second split ring.

10. The apparatus of claim 9, wherein the generally U shaped contacts curve inwardly towards the central axis of the ground contact.

11. The apparatus of claim 1, wherein the lock ring comprises a base ring and a finger attached to the base ring, wherein the finger extends in the same general direction as the central axis of the base ring.

12. The apparatus of claim 11, wherein the longitudinal axis of the finger is generally parallel but not precisely parallel with the central axis of the base ring such that there is about a two (2) degree angle between the longitudinal axis of the finger and the central axis of the lock ring.

13. The apparatus of claim 12, wherein the finger has a proximal end connected to the base ring, an opposite distal end, and a lock tab spaced inwardly from the distal end, wherein the lock tab projects from an inner surface of the finger towards the central axis of the lock ring.

14. The apparatus of claim 13, wherein the lock tab has a planar back wall generally facing the proximal end and a planar front wall generally facing distal end, wherein the back wall lies on a plane that forms an angle Y with the central axis of the lock ring, wherein angle Y is about 90 degrees.

15. The apparatus of claim 14, wherein the front wall is angled towards the back wall and lies on a plane that forms an angle X with the central axis of the lock ring, wherein angle X is between about 20 and 60 degrees.

16. The apparatus of claim 15, wherein angle X is about 36 degrees.

17. The apparatus of claim 15, wherein a rounded bottom wall connects the front wall with the back wall.

18. A socket, comprising:

a housing;

an insulator disposed within said housing;

a first contact disposed within said insulator;

an annular ground contact housed within an annular groove located in an inner surface of the housing;

a lock ring disposed about a distal end of said housing; and

a shroud disposed about said distal end of said housing and said lock ring and moveable relative to said housing between a first position and a second position, said shroud having an outer wall and an inner wall, wherein, said shroud and said lock ring are configured so that when said shroud moves from said first position to said second position, said inner wall contacts said lock ring and causes said lock ring to flex outwardly, wherein

the ground contact is arranged so that it is coaxial with the socket housing,

the ground contact includes a first split ring, a second split ring and one or more generally U shaped contacts connecting the first split ring with the second split ring, wherein the split rings are arranged so that they are coaxial, and

the first split ring and the second split ring have substantially the same inner and outer diameters, but the width of the first split ring is substantially greater then the width of the second split ring.

19. The apparatus of claim 18, wherein the ground contact is in the form of a split ring.

20. The apparatus of claim 18, wherein the generally U shaped contacts curve inwardly towards the central axis of the ground contact.

21. The apparatus of claim 18, wherein the inner wall of the shroud has two major surfaces, an inner surface and an outer surface, wherein the outer surface of the inner wall is not parallel with the inner surface of the inner wall so that the two surfaces converge to form an annular ridge.

22. The apparatus of claim 18, wherein the lock ring comprises a base ring and a finger attached to the base ring, wherein the finger extends in the same general direction as the central axis of the base ring.

23. The apparatus of claim 22, wherein the longitudinal axis of the finger is generally parallel but not precisely parallel with the central axis of the base ring such that there is about a two (2) degree angle between the longitudinal axis of the finger and the central axis of the lock ring.

24. The apparatus of claim 23, wherein the finger has a proximal end connected to the base ring, an opposite distal end, and a lock tab spaced inwardly from the distal end, wherein the lock tab projects from an inner surface of the finger towards the central axis of the lock ring.

25. The apparatus of claim 24, wherein the lock tab has a planar back wall generally facing the proximal end and a planar front wall generally facing distal end, wherein the back wall lies on a plane that forms an angle Y with the central axis of the lock ring, wherein angle Y is about 90 degrees.

26. The apparatus of claim 25, wherein the front wall is angled towards the back wall and lies on a plane that forms an angle X with the central axis of the lock ring, wherein angle X is between about 20 and 60 degrees.

27. The apparatus of claim 26, wherein angle X is about 36 degrees.

28. The apparatus of claim 26, wherein a rounded bottom wall connects the front wall with the back wall.

29. A ground contact for use in establishing an electrical connection between a socket housing and a plug housing, comprising:

a first split ring;

a second split ring; and

one or more generally U shaped contacts connecting the first split ring with the second split ring, wherein

the split rings are arranged so that they are coaxial, and

the first split ring and the second split ring have substantially the same inner and outer diameters, but the width of the first split ring is substantially greater then the width of the second split ring.

30. The ground contact of claim 29, wherein the generally U shaped contacts curve inwardly towards the central axis of the ground contact.

31. The ground contact of claim 30, wherein the ground contact is housed within an annular groove located in an inner surface of the socket housing.

32. A connector apparatus comprising:

a socket, comprising;

a socket housing;

an insulator disposed within said socket housing;

a first contact disposed within said insulator;

a lock ring disposed about a distal end of said housing;

a shroud disposed about said distal end of said socket housing and said lock ring and moveable relative to said socket housing between a first position and a second position, said shroud having an outer wall and an inner wall, wherein, said shroud and said lock ring are configured so that when said shroud moves from said first position to said second position, said inner wall contacts said lock ring and causes said lock ring to flex outwardly; and

a plug comprising;

a generally cylindrical, conductive plug housing that houses an insulator and a contact disposed within the insulator, wherein, on its outer wall, the plug housing has a protuberance having a first sloping surface on one side thereof and a second sloping surface on an opposite side thereof, wherein,

the socket is configured such that when the plug is inserted into the distal end of the socket and locked in place by the lock ring, the lock ring exerts an axial force on the protuberance of the plug housing, but the axial force does not cause the front surface of the plug housing to press against neither any surface nor component of the socket,

the lock ring comprises a base ring and a finger attached to the base ring, wherein the finger extends in the same general direction as the central axis of the base ring,

the longitudinal axis of the finger is generally parallel but not precisely parallel with the central axis of the base ring such that there is about a two (2) degree angle between the longitudinal axis of the finger and the central axis of the lock ring,

the finger has a proximal end connected to the base ring, an opposite distal end, and a lock tab spaced inwardly from the distal end, wherein the lock tab projects from an inner surface of the finger towards the central axis of the lock ring,

the lock tab has a planar back wall generally facing the proximal end and a planar front wall generally facing distal end, wherein the back wall lies on a plane that forms an angle Y with the central axis of the lock ring, wherein angle Y is about 90 degrees,

the front wall is angled towards the back wall and lies on a plane that forms an angle X with the central axis of the lock ring, wherein angle X is between about 20 and 60 degrees, and

a rounded bottom wall connects the front wall with the back wall.

33. A socket, comprising:

a housing;

an insulator disposed within said housing;

a first contact disposed within said insulator;

an annular ground contact housed within an annular groove located in an inner surface of the housing;

a lock ring disposed about a distal end of said housing; and

a shroud disposed about said distal end of said housing and said lock ring and moveable relative to said housing between a first position and a second position, said shroud having an outer wall and an inner wall, wherein, said shroud and said lock ring are configured so that when said shroud moves from said first position to said second position, said inner wall contacts said lock ring and causes said lock ring to flex outwardly, wherein

the lock ring comprises a base ring and a finger attached to the base ring, wherein the finger extends in the same general direction as the central axis of the base ring,

the longitudinal axis of the finger is generally parallel but not precisely parallel with the central axis of the base ring such that there is about a two (2) degree angle between the longitudinal axis of the finger and the central axis of the lock ring,

the finger has a proximal end connected to the base ring, an opposite distal end, and a lock tab spaced inwardly from the distal end, wherein the lock tab projects from an inner surface of the finger towards the central axis of the lock ring,

the lock tab has a planar back wall generally facing the proximal end and a planar front wall generally facing distal end, wherein the back wall lies on a plane that forms an angle Y with the central axis of the lock ring, wherein angle Y is about 90 degrees,

the front wall is angled towards the back wall and lies on a plane that forms an angle X with the central axis of the lock ring, wherein angle X is between about 20 and 60 degrees, and

a rounded bottom wall connects the front wall with the back wall.