Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
Patent
1992-02-19
1994-04-19
Pellinen, A. D.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Ground fault protection
361115, H02H 316
Patent
active
053051734
ABSTRACT:
An electrical connector with the function of instantaneous breaking of a current in response to detection of a leak. The connector comprises: a current supply cord for connecting a load to a source; a pair of plug blades connected electrically with the current supply cord and projected out of a connector body; a sensor mounted in the connector body for detecting a current leak; a breaker device for breaking the connection between the plug blades and the current supply cord in response to a detection by the leak detection sensor. Therein, the breaker device comprises: a pair of movable strips each having a portion thereof fixed to the connector body and a free end; a pair of stationary strips connected to the plug blades; a holder attached to the free ends of the movable strips; a lifter for pulling the holder such that the movable strips are contactual with the stationary strips in resistance to a spring action; a solenoid for being excited in response to a detection by the leak detection sensor; a plunger having a head engaged with the lifter for disengaging, by a move, the engagement between the lifter and the holder in response to excitement of the solenoid; a reset switch connected to the lifter with enablement of pivoting thereof; a spring for biasing the reset switch such that the movable strips tend to contact the stationary strips; thereby a push of the reset switch engaging a nail of the lifter with an engaging mate portion of the holder and in turn the movable strips being pulled toward the stationary strips to be contactual with thereof.
REFERENCES:
patent: 4688134 (1987-08-01), Freeman et al.
patent: 5148344 (1992-09-01), Rao et al.
Imamura Masaru
Kakuta Toshio
Nagano Hiroyuki
Hosiden Corporation
Jackson S.
Pellinen A. D.
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