Cable connector structured for reassembly and method thereof

• US 9,484,646 B2
• Filed: 01/20/2015
• Issued: 11/01/2016
• Est. Priority Date: 01/21/2014
• Status: Active Grant

• Current Assignee: PPC Broadband Incorporated (Belden Inc.)
• Original Assignee: PPC Broadband Incorporated (Belden Inc.)
• Inventors: Thomas, Charles E.
• Primary Examiner(s): Gushi, Ross
• Application Number:
  US14/600,706
• Publication Number:
  US 20150207243A1
• Time in Patent Office: 651 Days
• US Class Current: 1/1
• CPC Class Codes: H01R 43/002 Maintenance of line connectors, e.g. cleaning
• CPC Class Codes: H01R 9/0521 Connection to outer conductor by action of a nut
• CPC Class Codes: Y10T 29/49174 Assembling terminal to elongated conductor

Abstract

A connector includes, in one embodiment, a body assembly configured to be secured to a prepared end of a coaxial cable. The connector has a coupler assembly connected to the body assembly for connecting the body assembly to an interface port. The connector also has a flexible interlock to facilitate repeated assembly and disassembly of the connector.

Claims

1. A coaxial cable connector comprising:

a coupler assembly comprising;

a coupler member extendable along an axis, the coupler member defining a coupler space, and including;

(i) a forward coupler portion having a forward outer threaded surface that is configured to threadably engage a threaded interface port; and

(ii) a rearward coupler portion having a rearward outer threaded surface;

a contact pin configured to be at least partially received by the coupler member, the contact pin configured to extend along the axis, the contact pin comprising;

(i) a forward pin section configured to extend outside of the coupler space, the forward pin section configured to be electrically connected to the interface port; and

(ii) a rearward pin section configured to be positioned within the coupler space;

an inner conductor engager configured to be connected to the rearward pin section, and defining an inner conductor engager space, the inner conductor engager comprising a plurality of flexible fingers configured to surround the inner conductor engager space, the inner conductor engager space configured to receive an inner conductor of a coaxial cable;

a compressor configured to be received by the coupler body, and defining a compressor opening arranged to receive the inner conductor, the compressor opening further configured to;

move relative to the coupler member until at least a portion of the flexible fingers receive the inner conductor, and

compress the flexible fingers in a radially inward direction so as to engage the inner conductor when the inner conductor is inserted into the inner conductor engager space; and

wherein the compressor further comprises a compressor interlock, the compressor interlock comprising a compressor interlock wall extending along the axis, the compressor interlock wall being predisposed to define an inner diameter, at least part of the compressor interlock wall being flexible so as to increase the inner diameter;

a body assembly comprising;

a body configured to extend along the axis, the body defining a body space configured to receive the inner conductor, the body comprising;

(i) a forward body portion configured to at least partially receive the rearward coupler member portion, the forward body portion comprising a forward inner threaded surface configured to be threadably engaged with the rearward outer threaded surface; and

(ii) a rearward body portion;

a support moveably received within the body space, the support extending along the axis and defining a support space configured to receive the outer conductor, the support comprising;

(i) a forward support portion comprising a collar and a support interlock, the support interlock configured to be moved between;

a locked position in which the compressor interlock and the support interlock are locked together through a snap-fit arrangement; and

an unlocked position in which the compressor interlock and the support interlock are unlocked from each other, the inner diameter varying during the movement; and

(ii) a rearward support portion comprising a sleeve extending rearwardly from the collar, the sleeve configured to engage an insulator of the coaxial cable, the insulator at least partially surrounding the inner conductor;

a clamp defining a clamp opening configured to at least partially receive an outer conductor portion of the coaxial cable, the outer conductor portion at least partially surrounding the insulator, the clamp also configured to at least partially receive the rearward support portion, the clamp comprising a split-ring structure having an outer clamp surface, the outer clamp surface comprising a ramp, the forward body portion configured to cooperate with the ramp to cause the clamp to compress the sleeve radially toward the extension so that the outer conductor portion is sandwiched between the clamp and the support; and

a plurality of seals including;

(i) an interface seal configured to engage the interface port;

(ii) an intermediary seal configured to seal the coupler member and the body; and

(iii) a cable seal configured to seal the body assembly to an outer jacket of the coaxial cable.

2. A hardline connector comprising:

a coupler assembly comprising;

a coupler member extendable along an axis;

a contact pin at least partially received by the coupler member, the contact pin configured to be electrically connected to an interface port;

an inner conductor engager connected to the contact pin, the inner conductor engager comprising a plurality of fingers that are arranged to surround a space shaped to receive an inner conductor of a coaxial cable;

a seizure bushing configured to be received by the coupler body, and having a first interlock portion configured to;

(i) move relative to the coupler member; and

(ii) compress the fingers in a radially inward direction;

a body assembly including a body extendable along the axis, and a support moveably received within the body and configured to receive the outer conductor, the support having a second interlock portion configured to be moved between a locked position, where the first and second interlock portions are locked together, and an unlocked position, where the first interlock portion and the second interlock portion are unlocked from each other, and

wherein at least one of the first and second interlock portions is configured to flex when the second interlock portion of the support of the body assembly moves between the locked position and the unlocked position.

3. The hardline connector of claim 2, wherein the first and second interlock portions define a flexible interlock disposed between the body assembly and the coupler assemblies, the flexible interlock configured to apply a first threshold force to separate the coupler and body assemblies by an axial displacement, and configured to apply a second threshold force, larger than the first threshold force, to disassemble the hardline connector.

4. The hardline connector of claim 3, wherein the axial displacement separates the seizure bushing from the inner conductor engager.

5. The hardline connector of claim 3, wherein the seizure bushing is operative to drive the inner conductor engager into electrical contact with the inner conductor of the coaxial cable and includes a radial projection for engaging an annular groove along an internal surface of the coupler assembly, the annular groove including a pair of shoulders defining the length of the axial displacement.

6. The hardline connector of claim 3, wherein the flexible interlock includes a first interlock defining a snap-fit groove and a second interlock defining a snap fit ring.

7. The hardline connector of claim 6, wherein the seizure bushing includes a first annular interlock wall projecting rearwardly from the aft end of the seizure bushing and wherein the mandrel support includes a second annular wall projecting forwardly from the mandrel support, the first and second annular walls being compliant to enable snap-fit engagement of the interlock portions.

8. The hardline connector of claim 7, wherein one of the first and second annular interlock walls include a plurality of axial slots about the periphery to vary the flexibility of one of the interlocks.

9. The hardline connector of claim 3, wherein the flexible interlock defines a first snap-fit connection between the seizure bushing and the mandrel support.

10. The hardline connector of claim 9, further comprising a second snap fit connection between the seizure bushing and an annular groove formed within an internal surface of the coupler assembly and a third snap-fit connection between the mandrel support and an annular groove formed within an internal surface of the body assembly.

11. A coaxial cable connector comprising:

a body configured to be secured to a prepared end of a coaxial cable;

a coupler interposing the body and an interface port, and detachably connected to each, the coupler supporting an inner conductor engager having a pin socket at one end thereof;

an interlock disposed within a cavity defined by the body and coupler assemblies, the interlock including a seizure bushing and a support mandrel, the interlock including a snap-fit connection between the seizure bushing and a support mandrel;

wherein the seizure bushing is configured to separate from the inner conductor engager in response to a first axial displacement of the interlock; and

wherein the body is configured to separate from the coupler in response to a second axial displacement relative to the first axial displacement.

12. The connector of claim 11 wherein a first threshold force is applied between the body and coupler assemblies to separate the seizure bushing from the inner conductor engager, wherein a second threshold force is applied between the seizure bushing and the mandrel support.

13. The connector of claim 12 wherein the second threshold force is greater than the first threshold force.

14. The connector of claim 13, wherein one of the snap-fit grooves and snap-fit ring includes a plurality of axial slots disposed about a peripheral portion to vary the flexibility of one of the interlock.

15. The connector of claim 11, wherein the seizure bushing is configured to drive the inner conductor engager into electrical contact with an inner conductor of the coaxial cable.

16. The connector of claim 11, wherein the seizure bushing is mounted between a first pair of shoulders formed by an annular groove formed within a wall of the coupler assembly.

17. The connector of claim 11, wherein the snap-fit connection includes a snap-fit groove formed on one of the seizure bushing and the mandrel support, and a snap fit ring formed on the other of the seizure bushing and the mandrel support.

18. A coaxial cable connector comprising:

a body configured to engage a coaxial cable;

a coupler configured to be coupled to the body and an interface port and move between a locked position relative to the body, where the coupler is electrically coupled to an inner conductor of the coaxial cable and snap-fit engaged with the body so as to prevent the body from being disassembled from the coupler, and an unlocked position relative to the body, where the coupler is not electrically coupled to the inner conductor of the coaxial cable and is not snap-fit engaged with the body so as to allow the body to be disassembled from the coupler, and

wherein the coupler includes a bushing that is configured to form a mechanical connection with the inner conductor of the coaxial cable when the coupler is in the locked position relative to body; and

wherein the bushing of the coupler is configured to release the mechanical connection with the inner conductor of the coaxial cable before the coupler moves to the unlocked position so as to allow the body to be disassembled from the coupler after the mechanical connection with the inner conductor of the coaxial cable has been released and avoid damaging internal components of the connector.

19. The connector of claim 18, wherein the bushing is mounted between a first pair of shoulders formed by an annular groove formed within a wall of the coupler.

20. The connector of claim 18 wherein the body and coupler are snap-fit engaged by an interlock disposed between the bushing and a mandrel disposed in combination with the body.

21. The connector of claim 20, wherein the interlock comprises a first interlock portion formed in combination with one of the bushing and the mandrel, and a second interlock portion formed in combination with the other one of the bushing and the mandrel, and wherein at least one of the first and second interlock portions is configured to flex and release to enable the interlock portions to move between the locked and the unlocked positions.

22. The connector of claim 20, wherein the interlock comprises first and second interlock portions disposed between the body and the coupler, the interlock portions configured to apply a first threshold force to separate the coupler and body by an axial displacement, and configured to apply a second threshold force, larger than the first threshold force, when the interlock portions move between the locked and unlocked positions.

23. The connector of claim 22, wherein the first threshold force displaces the body from the coupler to separate the bushing from the inner conductor.

24. The connector of claim 23, wherein the second threshold force disassembles the body from the coupler.

25. The connector of claim 24, wherein the bushing includes a radial projection for engaging the annular groove disposed along an internal surface of the coupler, the shoulders of the annular groove defining the length of axial displacement.

26. The connector of claim 24, wherein the interlock includes a first interlock defining a snap-fit groove and a second interlock defining a snap fit ring.

27. The connector of claim 24, wherein the bushing includes a first interlock wall projecting rearwardly from the aft end of the bushing and wherein the mandrel includes a second interlock wall projecting forwardly from the mandrel, the first and second interlock walls being compliant to enable snap-fit engagement of the interlock portions.

28. The connector of claim 24, wherein one of the first and second interlock wall portions includes a plurality of axial slots about the periphery to vary the flexibility of one of the interlocks.

29. A coaxial cable connector comprising:

a body configured to engage a coaxial cable

a coupler configured to be coupled to the body and an interface port;

wherein the coupler is configured to move to a locked position, where the coupler forms a first connection with an inner conductor of the coaxial cable and forms a second connection with the body so as to prevent the body from being disassembled from the coupler when the coupler is in the locked position, in response to a first displacement force;

wherein the coupler is configured to move to an unlocked position, where the coupler has released the first connection with the inner conductor of the coaxial cable and has released the second connection with the body so as to allow the body to be disassembled from the coupler, in response to a second displacement force greater than the first displacement force; and

wherein the coupler is configured to release the first connection with the inner conductor of the coaxial cable before releasing the second connection with the body so as to allow the body and coupler to be disassembled from one another without damaging internal components of the connector;

wherein the body includes an internal mandrel, wherein the coupler includes a bushing, and wherein the bushing and mandrel are configured to form the second connection between the body and the coupler and

wherein the second connection includes a snap-fit interlock between the bushing and the mandrel.

30. The connector of claim 29 wherein the coupler includes a bushing that is configured to form the first connection with the inner conductor of the coaxial cable.

31. The connector of claim 29, wherein the bushing is mounted between a first pair of shoulders formed by an annular groove formed within a wall of the coupler.

32. The connector of claim 29, wherein the snap-fit interlock comprises a first interlock portion formed in combination with one of the bushing and the mandrel, and a second interlock portion formed in combination with the other one of the bushing and the mandrel, and wherein at least one of the first and second interlock portions is configured to flex and release to enable the interlock portions to move between the locked and the unlocked positions.

33. The connector of claim 29, wherein the snap-fit interlock comprises first and second interlock portions are disposed between the body and the coupler, the interlock portions configured to apply a first threshold force to separate the coupler and body by an axial displacement, and configured to apply a second threshold force, larger than the first threshold force, when the interlock portions move between the locked and unlocked positions.

34. The connector of claim 33, wherein the first threshold force displaces the body from the coupler to separate the bushing from the inner conductor.

35. The connector of claim 34, wherein the second threshold force disassembles the body from the coupler.

36. The connector of claim 34, wherein the bushing includes a first interlock wall projecting rearwardly from the aft end of the bushing and wherein the mandrel includes a second interlock wall projecting forwardly from the mandrel, the first and second interlock walls being compliant to enable snap-fit engagement of the interlock portions.

37. A coaxial cable connector comprising:

a body configured to engage a coaxial cable;

a coupler configured to engage an interface port and the body, and move between a locked position, where the coupler forms a first connection with an inner conductor of the coaxial cable and forms a second connection with the body so as to prevent the body from being disassembled from the coupler when the coupler is in the locked position, and an unlocked position, where the coupler has released the first connection with the inner conductor of the coaxial cable and has released the second connection with the body so as to allow the body to be disassembled from the coupler;

wherein the coupler is configured to release the first connection before releasing the second connection so as to prevent the first connection from damaging the inner conductor of the coaxial cable when the body and coupler are disassembled from one another,

wherein the body includes an internal mandrel, wherein the coupler includes a bushing, and wherein the bushing and mandrel are configured to form the second connection between the body and the coupler, and

wherein the second connection includes a snap-fit interlock between the bushing and the mandrel.

38. The connector of claim 37, wherein the coupler is configured to move to the locked position when a first displacement force is applied to the coupler.

39. The connector of claim 38, wherein the coupler is configured to move to the unlocked position when a second displacement force is applied to the coupler.

40. The connector of claim 39 wherein the snap-fit interlock comprises a first interlock portion formed in combination with one of the bushing and the mandrel, and a second interlock portion formed in combination with the other one of the bushing and the mandrel, and wherein at least one of the first and second interlock portions is configured to flex and release to enable the interlock portions to move between the locked and the unlocked positions.

41. The cable connector of claim 39, wherein the snap-fit interlock comprises first and second interlock portions are disposed between the body and the coupler, the interlock portions configured to apply a first threshold force to separate the coupler and body by an axial displacement, and configured to apply a second threshold force, larger than the first threshold force, when the interlock portions move between the locked and unlocked positions.

42. The connector of claim 39, wherein the second displacement force is greater than the first displacement force.

43. The connector of claim 37 wherein the coupler includes a bushing that is configured to form the first connection with the inner conductor of the coaxial cable.

44. The connector of claim 37, wherein the bushing is mounted between a first pair of shoulders formed by an annular groove formed within a wall of the coupler.