Variable-clocking terminal assembly

Patent metadata

Field	Value
Publication number	US-10128615-B2
Application number	US-201615266454-A
Country	US
Kind code	B2
Filing date	Sep 15, 2016
Priority date	Sep 15, 2016
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A variable-clocking terminal assembly includes a crimp barrel, a terminal lug, and a locking collar. The crimp barrel includes a crimp portion having a crimp portion cavity sized and configured to receive a cable end of an electrical cable. The crimp barrel includes a conical portion extending axially from the crimp portion. The terminal lug has a cylindrical portion and a terminal tongue extending outwardly from the cylindrical portion. The cylindrical portion has a conical cavity configured complementary to the conical portion. The locking collar has collar threads configured to engage threads formed on one of the crimp barrel and the terminal lug for drawing the conical portion into direct physical engagement with the conical cavity in a manner locking an orientation of the terminal lug relative to the crimp barrel and establishing electrical continuity between the conical portion and the conical cavity.

First claim

What is claimed is:

1. A variable-clocking terminal assembly, comprising:
a crimp barrel including a crimp portion having a crimp portion cavity sized and configured to receive a cable end of an electrical cable, the crimp barrel including a conical portion extending axially from the crimp portion;
a terminal lug having a cylindrical portion and a terminal tongue extending outwardly from the cylindrical portion, the cylindrical portion having a conical cavity configured complementary to the conical portion; and
a locking collar having collar threads configured to threadably engage threads formed on one of the crimp barrel and the terminal lug for drawing the conical portion into direct physical engagement with the conical cavity in a manner locking an orientation of the terminal lug relative to the crimp barrel and establishing electrical continuity between the conical portion and the conical cavity.

2. The terminal assembly of claim 1 , wherein:
the crimp barrel has a shaft extending axially outwardly from a cone end of the conical portion;
the cylindrical portion of the terminal lug has an end wall having a bore; and
the shaft protruding through the bore and having an enlarged head located on a side of the end wall opposite the conical portion to retain the terminal lug with the crimp barrel.

3. The terminal assembly of claim 1 , wherein:
the locking collar is mounted on the cylindrical portion of the terminal lug and configured to threadably engage with crimp barrel threads formed on an intermediate portion of the crimp barrel.

4. The terminal assembly of claim 1 , wherein:
the locking collar is mounted on an intermediate portion of the crimp barrel and configured to threadably engage threads formed on the cylindrical portion of the terminal lug.

5. The terminal assembly of claim 1 , further including:
a plurality of protrusions on one of a conical inner surface of conical cavity of the terminal lug and a conical outer surface of the conical portion of the crimp barrel.

6. The terminal assembly of claim 5 , wherein:
the protrusions are angularly spaced ribs formed on one of the conical outer surface and conical inner surface and being generally axially oriented.

7. The terminal assembly of claim 1 , wherein:
one of the crimp barrel and the terminal lug including an anti-rotation feature for preventing rotation of the crimp barrel relative to the terminal lug when tightening the locking collar.

8. The terminal assembly of claim 7 , wherein:
the anti-rotation feature is located on the terminal lug; and
the locking collar is mounted on the crimp barrel.

9. The terminal assembly of claim 7 , wherein:
the locking collar is mounted on the crimp barrel; and
the anti-rotation feature is included with the terminal lug.

10. A variable-clocking terminal assembly, comprising:
a crimp barrel including a crimp portion having a crimp portion cavity sized and configured to receive a cable end of an electrical cable, the crimp barrel including a conical portion extending axially from the crimp portion;
a terminal lug having a cylindrical portion and a terminal tongue extending outwardly from the cylindrical portion, the cylindrical portion having a conical cavity configured complementary to the conical portion; and
a locking collar mounted on the cylindrical portion of the terminal lug and having collar threads configured to threadably engage with crimp barrel threads formed on an intermediate portion of the crimp barrel for drawing the conical portion into direct physical engagement with the conical cavity in a manner locking an orientation of the terminal lug relative to the crimp barrel and establishing electrical continuity between the conical portion and the conical cavity.

11. A method of installing a terminal assembly, comprising:
providing an electrical cable having a terminal assembly mounted on a cable end of the electrical cable, the terminal assembly including:
a crimp barrel having a crimp portion mounted on the cable end and a conical portion extending axially from the crimp portion;
a terminal lug having a cylindrical portion and a terminal tongue extending from the cylindrical portion, the cylindrical portion having a conical cavity containing the conical portion; and
a locking collar having collar threads configured to engage threads formed on one of the crimp barrel and the terminal lug;

adjusting a clocking orientation of the terminal lug relative to the crimp barrel;
threadably engaging the locking collar onto threads formed on one of the crimp barrel and the terminal lug;
drawing the conical portion into contact with the conical cavity in response to threadably engaging the locking collar onto the threads of one of the crimp barrel and the terminal lug; and
tightening the locking collar until rotation of the terminal lug relative to the crimp barrel is prevented.

12. The method of claim 11 , wherein the step of rotatably adjusting a clocking orientation of the terminal lug relative to the crimp barrel includes:
retaining the terminal lug with the crimp barrel using a shaft extending from the conical portion into a bore formed in an end wall of the terminal lug and having an enlarged head on a side of the end wall opposite the conical portion.

13. The method of claim 11 , wherein the locking collar is mounted on the cylindrical portion, the step of threadably engaging the locking collar onto threads formed on one of the crimp barrel and the terminal lug comprises:
threadably engaging the locking collar to crimp barrel threads formed on an intermediate portion of the crimp barrel.

14. The method of claim 11 , wherein the locking collar is mounted on an intermediate portion of the crimp barrel, the step of threadably engaging the locking collar onto threads formed on one of the crimp barrel and the terminal lug comprises:
threadably engaging the locking collar to terminal lug threads formed on the cylindrical portion of the terminal lug.

15. The method of claim 11 , wherein one of a conical inner surface of the conical cavity of the terminal lug and a conical outer surface of the conical portion of the crimp barrel includes protrusions, the step of drawing the conical portion into contact with the conical cavity comprises:
deforming one or more of the protrusions against one of the conical inner surface and the conical outer surface.

16. The method of claim 15 , wherein the step of deforming one or more protrusions comprises:
deforming a plurality of angularly spaced ribs formed on one of the conical outer surface and conical inner surface.

17. The method of claim 11 , wherein the step of threadably engaging the locking collar onto threads formed on one of the crimp barrel and the terminal lug includes:
preventing rotation of one of the crimp barrel and the terminal lug onto which the locking collar is being threadably engaged using an anti-rotation feature included with the one of the crimp barrel and the terminal lug onto which the locking collar is being threadably engaged.

18. The method of claim 17 , wherein:
the anti-rotation feature is located on the terminal lug; and
the locking collar is mounted on the crimp barrel.

19. The method of claim 17 , wherein:
the locking collar is mounted on the crimp barrel; and
the anti-rotation feature is included with the terminal lug.

20. The method of claim 11 , further including:
attaching the terminal tongue of the terminal lug to a terminal stud.

Assignees

• Boeing Co

Inventors

• Thomas Daniel S
• Grippe Daniel M

Classifications

• Y10T29/49174

  Assembling terminal to elongated conductor · CPC title

• H01R4/20 Primary

  using a crimping sleeve {(H01R4/01 takes precedence)} · CPC title

• H01R24/38

  having concentrically or coaxially arranged contacts · CPC title

• H01R13/639 Primary

  Additional means for holding or locking coupling parts together, after engagement, {e.g. separate keylock, retainer strap} · CPC title

• Y10T29/53204

  Electrode · CPC title