Electrical connector with a compliant cable strain relief element

• US 7,874,865 B2
• Filed: 06/16/2009
• Issued: 01/25/2011
• Est. Priority Date: 06/20/2008
• Status: Active Grant

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: Tyco Electronics Corporation (TE Connectivity Ltd. (United Kingdom))
• Inventors: Tobey, Shawn Phillip
• Primary Examiner(s): Patel; T C
• Assistant Examiner(s): Patel; Harshad C
• Application Number:
  US12/485,457
• Publication Number:
  US 20090318033A1
• Time in Patent Office: 588 Days
• Field of Search: 439/450, 439/459, 439/460, 439/470, 439461-465, 439/676, 174/660
• US Class Current: 439/460
• CPC Class Codes: H01R 13/5837 specially adapted for accommodating various sized cables H01R13/5825 takes precedence
• CPC Class Codes: H01R 13/585 Grip increasing with strain force
• CPC Class Codes: H01R 13/743 integral with the housing
• CPC Class Codes: H01R 24/64 for high frequency, e.g. RJ 45

Abstract

An electrical connector includes a housing including a rear end. The housing has a cable bore configured to receive a cable, and the housing has an outer pocket positioned radially outward from, and surrounding portions of, the cable bore. A strain relief element is coupled to the housing. The strain relief element includes an end wall having an opening therein. The strain relief element has a flexible beam extending axially inward from the end wall proximate to the opening that is configured to engage the cable. The strain relief element also has a mounting tab extending axially inward from the end wall that is received in the outer pocket and that engages the housing to secure the strain relief element to the housing.

Claims

1. An electrical connector comprising:

a housing including a rear end, the housing having a cable bore configured to receive a cable, and the housing having an outer pocket separate from, positioned radially outward from, and surrounding portions of, the cable bore; and

a strain relief element coupled to the housing, the strain relief element including an end wall having an opening therein, the strain relief element including a flexible beam extending axially inward from the end wall proximate to the opening, the flexible beam being configured to engage the cable, the strain relief element having a mounting tab extending axially inward from the end wall and being spaced apart from the flexible beam, the mounting tab being received in the outer pocket and engaging the housing to secure the strain relief element to the housing.

2. The electrical connector of claim 1, wherein the housing includes an inner wall separating the cable bore from the outer pocket, the inner wall extending to the rear end of the housing.

3. The electrical connector of claim 1, wherein the housing includes an inner wall separating the cable bore from the outer pocket, the strain relief element engaging the inner wall such that as the cable deflects the flexible beams, the inner wall interacts upon the end wall to manipulate the position of the mounting tab with respect to the housing.

4. The electrical connector of claim 1, wherein the mounting tabs engage the housing with an initial latching force holding the strain relief element within the housing, and wherein the mounting tabs are movable toward the housing when the cable is loaded into the cable bore to engage the housing with a secondary latching force that is greater than the initial latching force.

5. The electrical connector of claim 1, a channel is created between the mounting tab and the flexible beam, the strain relief element being coupled to the housing such that a portion of the housing is received within the channel between the flexible beam and the mounting tab.

6. The electrical connector of claim 1, wherein the end wall includes an inner surface and an outer surface, the flexible beam extending inward at a non-perpendicular angle from the inner surface with respect to the end wall, the mounting tab extending inward from the inner surface.

7. The electrical connector of claim 1, wherein the rear end of the housing has an outer perimeter, the end wall of the strain relief element has an outer perimeter that is substantially the same as the outer perimeter of the rear end, the strain relief element being coupled to the housing such that the end wall is rearward of the rear end.

8. The electrical connector of claim 1, wherein the housing includes an outer wall defining a radially outer surface of the outer pocket, the mounting tab being movable between a normal position and a deflected position when the cable is loaded into the opening, in the normal position the mounting tab is spaced apart from the outer wall, in the deflected position the mounting tab is forced toward the outer wall.

9. The electrical connector of claim 1, wherein the strain relief element includes a plurality of flexible beams cooperating to hold the cable, the flexible beams being cantilevered from the end wall.

10. The electrical connector of claim 1, wherein the strain relief element includes a plurality of flexible beams, each of the flexible beams having a fixed end at the end wall and a free end arranged within the cable bore, the free ends being deflected away from one another when the cable is loaded into the cable bore.

11. An electrical connector comprising:

a strain relief assembly including a housing and a strain relief element coupled to the housing, the strain relief element including an end wall having an opening and a flexible beam extending from the end wall for engaging a cable received in the opening, the strain relief element having a mounting tab extending from the end wall, the mounting tab having a latch engaging the housing, the mounting tab being separate from the flexible beam such that a channel is created between the mounting tab and the flexible beam, the strain relief element being coupled to the housing such that a portion of the housing is received within the channel between the flexible beam and the mounting tab, and wherein the housing includes a cable bore configured to receive the cable and an outer pocket separate from, positioned radially outward from, and surrounding portions of, the cable bore, the flexible beam being received in the cable bore, the mounting tab being spaced apart from the flexible beam and being received in the outer pocket and engaging the housing to secure the strain relief element to the housing.

12. The electrical connector of claim 11, wherein the housing includes a wall defining the portion of the housing received within the channel, a distal end of the wall engaging the end wall of the strain relief assembly.

13. The electrical connector of claim 11, wherein the mounting tab extends perpendicular from the end wall, the flexible beam being oriented at a non-perpendicular angle with respect to the end wall.

14. The electrical connector of claim 11, wherein the flexible beam is movable between an undeflected position and a deflected position, the flexible beam being movable independently of the mounting tab.

15. The electrical connector of claim 11, wherein the housing includes a wire organizer including a plurality of slots configured to receive and hold individual wires of the cable, the housing being coupled to a jack housing that holds a plurality of contacts such that the contacts engage the wires held by the wire organizer when the housing is coupled to the jack housing.

16. The electrical connector of claim 11, wherein the cable bore is open at a rear end of the housing and the outer pocket is open at the rear end of the housing, the flexible beam being received in the cable bore, the mounting tab being received in the outer pocket and engaging the housing to secure the strain relief element to the housing.

17. The electrical connector of claim 11, wherein said cable bore opens at rear end of the housing and configured to receive the cable, and wherein the end wall is parallel to, and extends along, the rear end of the housing, portions of the end wall covering the rear end.

18. An electrical connector comprising:

a jack housing having a mating end and a wire terminating end;

a contact sub-assembly received in the jack housing, the contact sub-assembly having a plurality of jack contacts, the jack contacts being configured to engage mating contacts of a mating plug;

a wire termination sub-assembly received in the jack housing, the wire termination sub-assembly having a plurality of contacts that are configured to be electrically coupled to the jack contacts and to wires of a cable; and

a strain relief assembly coupled to the jack housing, the strain relief assembly having a back housing and a strain relief element coupled to the back housing, the strain relief element including an end wall having an opening and a flexible beam extending from the end wall for engaging the cable received in the opening, the strain relief element including a mounting tab separate from the flexible beam and extending from the end wall such that a channel is created between the mounting tab and the flexible beam, the strain relief element being coupled to the back housing such that a portion of the back housing is received within the channel between the flexible beam and the mounting tab, the flexible beam being deflected when the cable is received in the opening to provide a biasing force on the cable, the back housing having a wire organizer including a plurality of slots configured to receive and hold individual wires of the cable, the back housing being coupled to the wire terminating end of the jack housing such that the contacts of the wire termination sub-assembly engage the wires held by the wire organizer when the back housing is coupled to the jack housing.

19. The electrical connector of claim 18, wherein the back housing includes a cable bore configured to receive the cable and an outer pocket positioned radially outward from, and surrounding portions of, the cable bore, the flexible beam being received in the cable bore, the mounting tab being received in the outer pocket and engaging the housing to secure the strain relief element to the back housing.

20. The electrical connector of claim 18, wherein the strain relief assembly is at least partially manufactured from a conductive material, the strain relief element being configured to engage a shield of the cable, the strain relief assembly at least one of providing shielding for the electrical connector and completing a grounding path between the cable and the electrical connector.

21. The electrical connector of claim 18, wherein the mounting tab, the channel and the flexible beam are aligned with one another forward of the end wall, the flexible beam being at least partially deflected into the channel when the cable is received in the opening.

22. The electrical connector of claim 18, wherein the strain relief element is separate and discrete from the back housing, the strain relief element being attached to the back housing by the mounting tabs.