Continuity test unit and system
AssigneeSumitomo Wiring Systems, Ltd.
InventorsTomohiro Shinzou, Takuya Nojima
Life of this patent
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Abstract
A housing holder is provided with detectors to be inserted into communication grooves of a connector. The detectors are electrically connected through a lead wire to a test device. The test device is also connected to an adapter electrically connected to a rear end of a probe on each terminal. During a continuity test, incomplete insertion or dropout of a terminal, and a short circuit between terminals are detected by comparing a circuitry formed by a contact of each terminal with the detector and probe with a circuitry stored in the memory of the test device beforehand.
Claims18
A continuity test unit for testing a connector in which a housing is assembled in a cover, the housing including plural cavities for receiving terminals connected to electric wires, and a communication groove extending in a direction perpendicular to an insertion direction of the terminals for exposing the cavities to an exterior of the housing, the cover including a retainer for engaging the communication groove, said continuity test unit comprising:
- a housing holder configured to hold a housing during testing before the housing is assembled in a cover;
- a continuity test section configured to move toward and away from said housing holder, said continuity test section including plural probes for contacting and establishing electrical connection with respective terminals in a housing held in said housing holder;
- and
- a displacement device configured to move said continuity test section relative to said housing holder between a test position in which said continuity test section is displaced toward said housing holder to contact the probes with the respective terminals in the housing, and a loading position in which said continuity test section is displaced away from said housing holder to allow for loading and removal of housings from said housing holder;
- said housing holder including a conductive detector configured to be inserted into the communication groove in the housing adjacent to the cavities for detection of a short circuit condition.
Dependencies are inferred from the claim text.