Connector engagement detecting apparatus

Electrical connectors – With indicating or identifying provision – Connection indicating provision

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Details

439188, H01R 300

Patent

active

051278480

ABSTRACT:
A first connector housing has a resilient lock arm and a second connector housing to be connected with the first connector housing has an engagement projection and a short-circuit contact behind the engagement projection. The engagement projection cooperates with the resilient lock arm when the two connector housings are joined together. The first connector housing also has a pair of elastic contacts situated on either side of the resilient lock arm which are connected at the rear with a connector engagement detection circuit. The front ends of the paired elastic contacts are rested on the front end of the resilient lock arm so that the elastic contacts are displaced by the tilting motion of the lock arm. The resilient lock arm has a lock bar at the front end that abuts on and is guided along a guide surface of the engagement projection so that the lock arm is tilted or deflected when the two connector housings are being engaged. When the two connector housings are completely connected, the lock bar rides over and beyond the engagement projection and the resilient lock arm snaps back to its original shape, allowing the front ends of the paired elastic contacts to come into contact with the short-circuit contact, thus completing a connector engagement detection circuit.

REFERENCES:
patent: 4750893 (1988-06-01), Sueyoshi et al.
patent: 4878853 (1989-11-01), Yamade et al.
patent: 4900267 (1990-02-01), Nagasaka et al.
patent: 4915649 (1990-04-01), Shimazu et al.

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