Hybrid input/output connector having low mating force and high cycle life and contacts therefor

• US 5,234,353 A
• Filed: 03/20/1992
• Issued: 08/10/1993
• Est. Priority Date: 03/03/1992
• Status: Expired due to Term

• Current Assignee: AMP Limited
• Original Assignee: AMP Limited
• Inventors: Yohn, Brent D., Scholz, James P., Shaffer, David T.
• Primary Examiner(s): Bradley, Paula A.
• Application Number:
  US07/855,364
• Time in Patent Office: 508 Days
• Field of Search: 439/79, 439/287, 439/289-293, 439/824, 439/834
• US Class Current: 439/289
• CPC Class Codes: H01R 12/675 with contacts having at least a slotted plate for penetration of cable insulation, e.g. insulation displacement contacts for round conductor flat cables
• CPC Class Codes: H01R 12/724 containing contact members forming a right angle
• CPC Class Codes: H01R 12/75 connecting to cables except for flat or ribbon cables
• CPC Class Codes: H01R 13/28 Contacts for sliding cooperation with identically-shaped contact, e.g. for hermaphroditic coupling devices H01R24/84 takes precedence
• CPC Class Codes: H01R 13/627 Snap or like fastening
• 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 2103/00 Two poles
• CPC Class Codes: H01R 24/50 mounted on a PCB [Printed Circuit Board]

Abstract

An assembly of matable connectors includes first and second connectors (10,100) each including housings (16,116) having a respective plurality of signal contacts (24,124) each having a front contact section (46,146) extending transversely of the connector'"'"'s mating face (12,112) to a free end (52,152) from a bend section (44,144) adjoining the contact'"'"'s body section (40,140). The front contact sections (46,146) of each associated pair extend forwardly of the respective mating faces to engage each other proximate their free ends and deflect each other rearwardly about bend sections (44,144), which results in low mating force and high cycle life. The connector housings (16,116) can include a durable latching system comprising a latch arm (18) of one connector (10) having a spaced apart pair of beams (208) having pairs of latches (210) and each being received into latching slots (252) of the other connector (100) near both lateral ends of the connectors, latching proximate both lateral ends.

Claims

1. A matable electrical connector assembly of the type having an array of electrical contacts to be mated, comprising:

first and second connectors having first and second housings adapted to be mated to each other at respective first and second mating faces, said first and second connectors including pluralities of first and second contacts disposed in opposing arrays across said first and second mating faces, each said first and second contact having front and rear contact sections joined by body sections, said front contact sections being exposed at one of said first and second mating faces for mating, said body sections being retained within a body section of one of said first and second housings and rear contact sections being disposed at least proximate rearward sections of said first and second housings for electrical connections to other respective conductive means;

each said front contact section being disposed generally transverse of one of said first and second mating faces of a respective one of said first and second connectors, and each said front contact section at least including a contact surface portion extending forwardly of said housing body section of said respective connector to abuttingly engage an axially opposing contact surface portion of a said front contact section of an associated said contact of the other of said first and second connectors, each said front contact section extending to a respective said contact forwardly of a respective said body section thereof defining a fulcrum; and

each of said first and second housings including a relief recess axially rearwardly of each said front contact section permitting deflection of said front contact section rearwardly thereinto upon abutting engagement with an opposing front contact section during mating of said first and second connectors.

2. An electrical connector assembly as set forth in claim 1 wherein said first and second housings include relief recesses into inside surfaces thereof adjacent respective ones of said bend sections of said first and second contacts providing clearance therefor upon said front contact sections being deflected during connector mating.

3. An electrical connector assembly as set forth in claim 1 wherein ones of said first contacts extend transversely in a first direction and other alternating therewith extend transversely in a second and opposing direction, and ones and others of said second contacts are arranged in complementary fashion thereto for mating engagement therewith upon connector mating.

4. An electrical connector assembly as set forth in claim 1 wherein first and second connectors include complementary latching means latchable after said contact surface portions of said pairs of first and second contacts engage under sufficient contact normal force defining complete connector mating.

5. An electrical connector assembly as set forth in claim 1 wherein said rear contact sections of ones of said first and second contacts include insulation displacement sections terminated to respective conductor wires proximate a cable receiving face of a respective one of said first and second connectors thereby defining a cable terminated connector.

6. An electrical connector assembly as set forth in claim 1 wherein said rear contact sections of ones of said first and second contacts include post sections extending from a mounting face of a respective one of said first and second connectors for electrical engagement with circuit means of a printed circuit board thereby defining a board mountable connector.

7. An electrical connector assembly as set forth in claim 1 wherein said rear contact sections of ones of said first and second contacts include spring arms extending to free ends engageable with and solderable to traces of a circuit board on a surface thereof for electrical connection with circuit means of said circuit board defining a surface mountable connector.

8. An electrical connector assembly as set forth in claim 1 wherein said first and second connectors include first and second coaxial connectors matable along said first and second mating faces, thereby defining hybrid connectors.

9. An electrical connector assembly as set forth in claim 1 wherein said contact surface portion of at least one of a mating pair of said first and second contacts is disposed on a convex arcuate embossment extending forwardly of a respective said mating face for engaging a said contact surface portion of the other of said mating pair.

10. An electrical connector assembly as set forth in claim 9 wherein said contact surface portion of the other of said mating pair of first and second contacts is disposed on a convex arcuate embossment extending forwardly of a respective said mating face opposing said convex arcuate embossment of said one thereof.

11. An electrical connector assembly as set forth in claim 9 wherein said contact surface portion of the other of said mating pair of first and second contacts is disposed on a straight spring arm extending transversely across a respective said mating face.

12. An electrical connector assembly as set forth in claim 1 wherein said contact surface portions of both of a mating pair of said first and second contacts comprise forwardmost extents of forwardly angled straight elongate spring arms positioned to oppose each other for mating.

13. An electrical connector assembly as set forth in claim 12 wherein said bend section is joined to a transverse contact section extending to a second bend at a forward end of said body section.

14. An electrical connector assembly as set forth in claim 12 wherein ones of said first contacts extend transversely in a first direction and others alternating therewith extend transversely in a second and opposing direction, and ones and others of said second contacts are arranged in complementary fashion thereto for mating engagement therewith upon connector mating.

15. An electrical connector assembly as set forth in claim 1 where each said contact free end comprises a rearwardly extending portion concluding in a transverse portion disposed behind a ledge of a respective said first and second connector and engaged therewith under preload when said first and second connectors are unmated, said rearwardly extending portion having an axial length selected to position said contact surface portion of said contact a selected distance forwardly of a respective one of said first and second mating faces.

16. An electrical connector assembly as set forth in claim 15 wherein said first and second housings each include a front cover member securable thereto across a said mating face thereof and having a transverse body section including an array of recesses through which said front contact sections extend for engagement by mating ones of said front contact sections.

17. A system of mating contacts comprising:

first and second contacts having front and rear contact sections joined by body sections, said front contact sections being exposed for mating at first and second mating faces, said body sections extending generally along a mating axis rearwardly from said first and second mating faces,

each said front contact section being disposed generally transverse of one of said first and second mating faces and at least including a contact surface portion extending forwardly to engage an opposing contact surface portion of a said front contact section of an associated one of said contacts of the other of said first and second connectors, each said front contact section extending to a respective free end from a bend section of a respective said contact forwardly of a respective said body section thereof defining a fulcrum, and each said front contact section adapted to be deflectable rearwardly upon engagement of said contact surface portions.

18. A mating contact system as set forth in claim 17 wherein ones of said first contacts extend transversely in a first direction and others alternating therewith extend transversely in a second and opposing direction, and ones and others of said second contacts are arranged in complementary fashion thereto for mating engagement therewith upon connector mating.

19. A mating contact system as set forth in claim 17 where each said contact free end comprises a rearwardly extending portion concluding in a transverse portion.

20. A mating contact system as set forth in claim 17 wherein said contact surface portion of at least one of said first and second contacts is disposed on a convex arcuate embossment extending forwardly of a respective said mating face for engaging a said contact surface portion of the other.

21. A mating contact system as set forth in claim 20 wherein said contact surface portion of the other of said first and second contacts is disposed on a convex arcuate embossment extending forwardly of a respective said mating face opposing said convex arcuate embossment of said one thereof.

22. A mating contact system as set forth in claim 20 wherein said contact surface portion of the other of said first and second contacts is disposed on a straight spring arm extending transversely across a respective said mating face.

23. A mating contact system as set forth in claim 17 wherein said contact surface portions of both of said first and second contacts comprise forwardmost extents of forwardly angled straight elongate spring arms positioned to oppose each other for mating.

24. A mating contact system as set forth in claim 23 wherein said bend section is joined to a transverse contact section extending to a second bend at a forward end of said body section.

25. A mating contact system as set forth in claim 24 wherein ones of said first contacts extend transversely in a first direction and others alternating therewith extend transversely in a second and opposing direction, and ones and others of said second contacts are arranged in complementary fashion thereto for mating engagement therewith upon connector mating.