Electrical connector system

• US 5,041,003 A
• Filed: 07/27/1990
• Issued: 08/20/1991
• Est. Priority Date: 08/04/1989
• Status: Expired due to Fees

• Current Assignee: Microelectronics and Computer Technology Corporation
• Original Assignee: Microelectronics and Computer Technology Corporation
• Inventors: Chung, Chang-Hwa, Chang, Yu C., Smith, Robert T.
• Primary Examiner(s): DESMOND, EUGENE
• Application Number:
  US07/558,936
• Time in Patent Office: 389 Days
• Field of Search: 439/62, 439/67, 439/259, 439/261, 439/325, 439/327, 439/329, 439/493, 439/695, 174/117 F, 174/117 FF
• US Class Current: 439/259
• CPC Class Codes: H01R 12/714 with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
• CPC Class Codes: H01R 12/79 connecting to rigid printed circuits or like structures
• CPC Class Codes: H01R 12/88 acting manually by rotating or pivoting connector housing parts

Abstract

An electrical connector having first and second coacting engagable parts for mating a plurality of spaced electrical contacts in which the system includes predictable alignment, contact force and wiping features. The connector may use flexible circuit tape as the contact elements in which a plurality of modules may be utilized to be aligned separately to avoid cumulative alignment errors. The flexible circuit tape may be a TAB type tape which is configured to allow the end user with the capability to program the signal/ground ratio of the interconnect.

Claims

1. An electrical connector having first and second coacting engagable and releasable longitudinally extending parts, each of said parts including a plurality of spaced electrical contacts for connection to the contacts on the other part comprising,

a latching and unlatching mechanism connected between the first and second parts and positioned on each side of the plurality of contacts,

said mechanism including latching arms on one part and latch shoulders on the other part,

a longitudinally extending loading and wiping block extending through the second part adjacent the electrical contacts on the second part and extending through the latching and unlatching mechanisms,

coacting incline surfaces in the latching and unlatching mechanisms between the loading and wiping block and the first part for moving the block transversely as it is moved toward the contacts,

rotatable cam means between the block and said second part for moving the block toward the contacts, and

release means engagable with and unlatching the latching arms from the latch shoulders.

2. The apparatus of claim 1 wherein the release means includes a release wedge and the cam means includes first and second cam surfaces, one of said surfaces controlling the movement of the loading and wiping block and the second controlling the movement of the release wedge.

3. The apparatus of claim 1 including, biasing means positioned between the first part and the loading and wiping block for biasing the coacting incline surfaces together for creating a wiping action between contacts on the first and second parts.

4. The apparatus of claim 1 wherein the electrical contacts on each part include a flexible tape having an insulating layer and a plurality of conductors.

5. The apparatus of claim 4 wherein the flexible tape on the second part extends around the loading and wiping block and is attached to opposite sides of the second part.

6. The apparatus of claim 1 wherein the electrical contacts on each of the parts includes a plurality of modules,

each module including a plurality of electrical contacts,

each module including a flexible tape having an insulating and a metal contact layer, and

each module having an independent alignment reference point on its connected part for avoiding cumulative alignment errors.

7. The apparatus of claim 1 wherein at least one of the parts comprises,

a flexible electrical tape having two layers, the first layer includes a plurality of electrical traces, and the second layer including an insulator.

8. The apparatus of claim 1 wherein at least one of the parts comprises,

a flexible electrical tape having three layers, the first layer includes a plurality of electrical traces, the second layer is the middle layer and includes an insulator, and the third layer includes a ground layer.

9. The apparatus of claim 8 including a connection between alternate traces through a via in the insulator to the ground layer, and

said connection to the ground layer being in the third layer and includes a portion offset from the ground layer.

10. The apparatus of claim 8 including a connection between alternate traces through a via in the insulator to the ground layer, and

said connection to the ground layer being in the third layer and includes a portion offset from the electrical traces.

11. The apparatus of claim 1 wherein the release means includes a longitudinally extending wedge member movable in a longitudinal direction for simultaneously releasing all of the latching arms.

12. An electrical connector comprising,

first and second coacting engagable and releasable longitudinally extending parts, said first part having an opening for receiving said second part, said first part having a window in which are positioned a plurality of spaced electrical contacts, said second part including a plurality of spaced electrical contacts extending around the bottom of the second part and attached to opposite sides of the second part, the contacts on the second part positioned to engage the contacts on the first part when the second part is positioned in the opening of the first part,

a latching and unlatching mechanism connected between the first and second parts and positioned on each side of the plurality of contacts,

said mechanism including latching arms on one part and latch shoulders on the other part,

a longitudinally extending loading and wiping block extending through the second part against the electrical contacts on the second part and extending through the latching and unlatching mechanisms,

coacting incline surfaces in the latching and unlatching mechanism between the loading and wiping block and the first part for moving the block transversely to the longitudinal axis of the parts as it is moved toward the contacts,

rotatable cam means between the block and said second part for moving the block toward the contacts, and

release means engagable with and unlatching the latching arms from the latch shoulders.

13. The apparatus of claim 12 wherein the release means includes a release wedge and the cam means includes first and second cam surfaces, one of said surfaces controlling the movement of the loading and wiping block and the second controlling the movement of the release wedge.

14. The apparatus of claim 12 including,

biasing means positioned between the first part and the loading and wiping block for biasing the coacting incline surfaces together for creating a wiping action between contacts on the first and second parts.

15. The apparatus of claim 12 wherein the electrical contacts on each part include a flexible tape having an insulating layer and a plurality of conductors.

16. The apparatus of claim 15 wherein the flexible tape on the second part extends around the loading and wiping block and is attached to opposite sides of the second part.

17. The apparatus of claim 12 wherein the electrical contacts on each of the parts includes a plurality of modules,

each module including a plurality of electrical contacts,

each module including a flexible tape having an insulating and a metal contact layer, and

each module having an independent alignment reference point on its connected part for avoiding cumulative alignment errors.

18. The apparatus of claim 12 wherein at least one of the parts comprises,

a flexible electrical tape having three layers, the first layer includes a plurality of electrical traces, the second layer is the middle layer and includes an insulator, and the third layer includes a ground layer.

19. The apparatus of claim 18 including a connection between alternate traces through a via in the insulator to the ground layer, and

said connection to the ground layer being in the third layer and extending from the ground layer to the conductive via for ease of removal for changing the signal to ground ratio.

20. The apparatus of claim 18 including a connection between alternate traces through a via in the insulator to the ground layer, and

said connection to the ground layer being in the third layer and includes a portion offset from the electrical traces.

21. The apparatus of claim 12 wherein the release means includes a longitudinally extending wedge member movable in a longitudinal direction for simultaneously releasing all of the latching arms.

22. A flexible electrical interconnect tape having three layers comprising,

the first layer includes a plurality of electrical traces, the second layer is the middle layer and includes an insulator, and the third layer includes a metal ground layer,

a conductive via connected to alternate traces and extending through the insulator to the third layer, and

a connection in the third layer between each via and the ground layer and said connection extending from the ground layer to the conductive via for ease of removal for changing the signal to ground ratio.

23. A flexible electrical interconnect tape having three layers comprising,

the first layer includes a plurality of electrical traces, and second layer is the middle layer and includes an insulator, and the third layer includes a metal ground layer,

a conductive via connected to alternate traces through the insulator to the third layer, and

a connection in the third layer between each via and the ground layer and said connection extending from the ground layer to the conductive via for ease of removal for changing the signal to ground ratio and including a portion offset from the electrical traces.