Apparatus for retaining a coupling ring in non-self locking electrical connectors

• US 5,141,448 A
• Filed: 12/02/1991
• Issued: 08/25/1992
• Est. Priority Date: 12/02/1991
• Status: Expired due to Term

• Current Assignee: Matrix Science Corp (Amphenol Corporation)
• Original Assignee: Matrix Science Corp (Amphenol Corporation)
• Inventors: Mattingly, William R., Kroger, Roy E.
• Primary Examiner(s): MCGLYNN, JOSEPH
• Application Number:
  US07/800,705
• Time in Patent Office: 267 Days
• Field of Search: 439/314-323
• US Class Current: 439/314
• CPC Class Codes: F16F 1/32 Belleville-type springs friction-clutch diaphragm springs F16D13/583
• CPC Class Codes: H01R 13/622 Screw-ring or screw-casing H01R13/623 takes precedence

Abstract

An apparatus for retaining a coupling ring such as a canted washer or spring for use in non-self locking electrical connectors is disclosed. The canted washer or spring having uniform frustoconical surface is positioned between the plug and coupling ring providing a known spring force response between the coupling ring and plug shell shoulder. In one embodiment, the canted washer is used in a non-bayonet electrical connector with a swaged coupling ring. An alternative embodiment is described as a double turn canted spring used in conjunction with a non-swaged, grooved coupling ring. The apparatus is used in both metal and composite non-bayonet electrical connectors. Configuration to a particular cant for either the canted washer or spring is calculable using known factors such as; size, material thickness, and the modulus of the material. A canted washer or wave spring for use in electrical connectors subjected to high and low temperature environments is also disclosed.

Claims

1. An apparatus for locking a non-self locking electrical connector, comprising:

a plug having a plug shoulder;

a receptacle, said receptacle matingly engaging said plug;

a coupling ring cooperatively associated with said matingly engaged plug and receptacle;

a means for engaging disposed within said coupling ring; and

a frustoconical means for deflecting disposed between said plug shoulder and said means for engaging, said frustoconical means for deflecting having a predetermined;

thickness, external diameter, internal diameter, inside height and material modulus providing a known spring response to deflection.

2. The apparatus as defined in claim 1 wherein said non-self locking electrical connector is formed from metal.

3. The apparatus as defined in claim 1 wherein said non-self locking electrical connector is formed from composite material.

4. The apparatus as defined in claim 1 wherein said means for engaging is formed by the shoulder of a swaged coupling ring.

5. The apparatus as defined in claim 1 wherein said means for engaging is formed by a non-swaged coupling ring having a portion defining a groove.

6. The apparatus as defined in claim 1 wherein said frustoconical means for deflecting is a canted washer.

7. The apparatus as defined in claim 1 wherein said frustoconical means for deflecting is a canted spring.

8. The apparatus as defined in claim 1 wherein said frustoconical means for deflecting is formed from beryllium copper.

9. The apparatus as defined in claim 1 wherein said frustoconical means for deflecting is formed from 17-7 ph stainless steel.

10. The apparatus as defined in Clam 1 wherein said frustoconical means for deflecting deflects in the range of from 0.000 to 0.025 inches.

11. A method of providing an apparatus for locking a non-self locking electrical connector, and said method comprising the steps of:

providing a plug having a plug shoulder;

providing a receptacle, said receptacle matingly engaging said plug;

providing a coupling ring cooperatively associated with said matingly engaged plug and receptacle;

providing a means for engaging disposed within said coupling; and

providing a frustoconical means for deflecting disposed between said plug shoulder and said means for engaging said frustoconical means for deflecting have a predetermined;

thickness, external diameter, internal diameter inside height and material modulus providing a known spring response to deflection.

12. A coupling ring retainer for a non-self locking electrical connector, comprising:

a receptacle, said receptacle matingly engaging said plug;

a coupling ring having a shoulder, said coupling ring cooperatively associated with said matingly engaged plug and receptacle;

a friction washer positioned proximate said plug shoulder and said shoulder of said coupling ring; and

a frustoconical washer disposed between said plug shoulder and said friction washer, said frustoconical washer having a uniform surface and a predetermined;

thickness, external diameter, internal diameter, inside height and material modulus, said frustoconical washer providing a known spring response to deflection.

a coupling ring retainer as defined in claim 12 wherein said non-self locking electrical connector is formed from metal.

13. The coupling ring retainer as defined in claim 12 wherein said non-self locking electrical connector is formed from composite material.

14. A coupling ring retainer as defined in claim 12 wherein said friction washer is a planer washer.

15. The coupling ring retainer as defined in claim 12 wherein said friction washer is an L-shaped washer.

16. The coupling ring retainer as defined in claim 12 wherein said frustoconical washer is formed from 17-7 pH stainless steel.

17. The coupling ring retainer as defined in claim 12 wherein said frustoconical washer is formed from beryllium copper.

18. The coupling ring retainer as defined in claim 12 wherein said frustoconical washer deflects in the range of from 0.000 to 0.025 inches.

19. A method of providing a coupling ring retainer for a non-self locking electrical connector, said method comprising the steps of:

providing a plug having a plug shoulder;

providing a receptacle, said receptacle matingly engaging said plug;

providing a coupling ring having a swage, said coupling ring cooperatively associated with said matingly engaged plug and receptacle,

providing a friction washer positioned proximate said plug shoulder and said swage of said coupling ring; and

providing a frustoconical washer disposed between said plug shoulder and said friction washer, said frustoconical washer having a uniform surface and a predetermined;

thickness, external diameter, internal diameter, inside height and material modulus, said canted washer providing a known spring response to deflection.

20. A coupling ring retainer for a non-self locking electrical connector, comprising:

a plug having a plug shoulder;

a receptacle, said receptacle matingly engaging said plug;

a non swaged coupling ring having an interior portion defining a groove, said non swaged coupling ring cooperatively associated with said matingly engaged plug and receptacle; and

a frustoconical spring disposed between said plug shoulder and said groove of said non-swaged coupling frustoconical ring, said spring having a uniform surface, and a predetermined;

thickness, external diameter, internal diameter, inside height and material modulus, said frustoconical spring providing a known spring response to deflection.

21. A coupling ring retainer as defined in claim 20 wherein said non-self locking electrical connector is formed from metal.

22. A coupling ring retainer as defined in claim 20 wherein said non-self locking electrical connector is formed from composite material.

23. The coupling ring retainer as defined in claim 20 wherein said frustoconical spring is formed from 17-7 pH stainless steel.

24. The coupling ring retainer as defined in claim 20 wherein said frustoconical spring is formed from beryllium copper.

25. The coupling ring retainer as defined in claim 20 wherein said frustoconical spring deflects in the range of from 0.000 to 0.0025 inches.

26. A method of providing a coupling ring retainer for a non-self locking electrical connector, said method comprising the steps of

providing a plug having a plug shoulder;

providing a receptacle said receptacle matingly engaging said plug;

providing a non swaged coupling ring having a internal portion defining a groove, said non swaged coupling ring cooperatively associated with said matingly engaged plug and receptacle; and

providing a frustoconical spring disposed between 12 said plug shoulder and said groove of said non-swaged coupling ring, said frustoconical spring having a uniform surface, and a predetermined;

thickness, external diameter, internal diameter, inside height and material modulus, said frustoconical spring providing a known spring response to deflection.