Socket having means of no-load engaging with and releasing from electronic unit

• US 4,420,207 A
• Filed: 05/14/1981
• Issued: 12/13/1983
• Est. Priority Date: 05/28/1980
• Status: Expired due to Fees

• Current Assignee: Yamaichi Electric Mfg., Co., Ltd.
• Original Assignee: Yamaichi Electric Mfg., Co., Ltd.
• Inventors: Nishikawa, Kinichi
• Primary Examiner(s): McQuade, John
• Application Number:
  US06/263,507
• Time in Patent Office: 943 Days
• Field of Search: 339/17 CF, 339/75 M, 339/75 MP, 339/176 M, 339/176 MP, 339/91 R, 220/307, 220/324, 220/326
• US Class Current: 439/368
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01R 13/193 Means for increasing contact pressure at the end of engagement of coupling part , e.g. zero insertion force or no friction
• CPC Class Codes: H01R 13/506 assembled by snap action of the parts
• CPC Class Codes: H05K 7/1007 with means for increasing contact pressure at the end of engagement of coupling parts

Abstract

A socket for electronic unit includes a base plate having two rows of openings to receive lead wires of the unit and a connector plate having two rows of contacts each engageable with the lead wire. The base plate is movable vertically between a lead wiere engagement position and a release position. Each contact moves laterally to contact with the lead wire by downward urging force of the base plate. Lock members having finger operating release portions engage with retainers of the connector plate and can be disengaged by longitudinally inward urging force of fingers. Thus, engagement and disengagement of the electronic unit can be performed by one operation.

Claims

1. A socket for an electronic unit having a plurality of wires depending therefrom, said socket comprising:

a base plate having at least one row of vertical openings therein for receiving corresponding lead wires from the electronic unit;

a connector plate having at least one row of contacts and on which said base plate is mountable with the openings aligned with said contacts and the contacts extending into said openings, said base plate and said connector plate being movable toward and away from each other between contact engagement and release positions of said contacts and the lead wires of the electronic unit on said base plate with the lead wires extending through said openings;

a pair of resilient lock members, one at each of the opposite end portions of said base plate and having one portion normally resiliently urged away from said end portions of said base plate;

a pair of retainers, one at each of the corresponding opposite end portions of said connector plate, and said one portion of each resilient lock member having a retainer engaging means engageable with the corresponding retainer by the resilient urging of said one portion away from said end of said base plate when said base plate is at said engagement position; and

said lock members each having a finger operating portion projecting upwardly from the upper surface of said base plate and movable toward the corresponding ends of said base plate to release said retainer engaging means from said retainers;

said row of openings being located in said base plate for causing an electronic unit to be positioned between said finger operating portions with the electronic unit adjacent said finger operating portions when the electronic unit is mounted on the base plate with the depending lead wires extending into said openings, whereby when said finger operating portions of said lock members are moved toward each other to release the lock members from said retainers, the electronic unit is gripped between the fingers of the operator.

2. A socket as claimed in claim 1 in which said resilient lock members are each an elastic metal plate bent into a U-shape and said retainer engaging means is a stepped portion projecting away from the base plate for engaging under the corresponding retainer.

3. A socket as claimed in claim 1 in which said finger operating portions are each an inverted U-shape plate portion.

4. A socket as claimed in claim 1 in which said contacts are laterally elastically deformable into contact with and disengagement from the lead wires when said base plate is moved into the contact engagement position, and said contacts include means for preventing said base plate from being moved away from said connector plate in the direction of the release position more than a predetermined distance.

5. A socket as claimed in claim 4 in which said contacts each having two elastic contact elements which are urged toward the lead wire extending between them when said base plate is in the contact engagement position, and said contact elements each have a retaining means at the upper free end thereof extending away from the other contact element and overlying a portion of said base plate around the corresponding vertical opening.