Patent ID: 8866569

Claim:
A pry plate tripping circuit breaker, comprising a housing to accommodate an operation mechanism, with two sides of the housing being provided with binding posts, a tripping mechanism. a lock catch, hingedly disposed in the housing, comprising a lock portion to cooperate with the operation mechanism, and an action portion to cooperate with the tripping mechanism, a movable contact, an immovable contact, an arc extinguish chamber, a bimetallic strip, and the trigging mechanism, comprising a pry plate unit and a drive unit to drive the pry plate unit to turn, comprising a conductive plate electrically connected with the bimetallic strip, and an electromagnetic induction member disposed on the conductive plate, with the pry plate unit comprising a pry plate pivotally arranged, one end of the pry plate provided with an armature to cooperate with the electromagnetic induction member, another end of the pry plate being located corresponding to the action portion of the lock catch, the pry plate provided with an elastic member for applying an action force to the pry plate, the action force making the pry plate corresponding to one end of the armature be away from the electromagnetic induction member, wherein the electromagnetic induction member is a magnetic yoke, the magnetic yoke is fixedly disposed in the housing, the conductive plate passes through the magnetic yoke, and the magnetic yoke has an opening corresponding to one side of the armature.