Efficient bistable electromagnetic clutch

Efficient bistable electromagnetic clutch, the present invention relates to drive technology. It is to solve the conventional clutch such structures and this energization pattern necessary to apply a large current will produce enough starting force, and after starting up, the biasing force generated intermediately and large, is to start a force several times the issue. Chamfered between the right end face of the magnetically conductive posts its first stator and the upper end surface of the upper magnetic column of the first stator is provided, a right end surface of the lower magnetic column of the first stator and the second constant between the lower end surface of the magnetic column promoter chamfered; chamfered between the upper end surface of the upper magnetic column left end face on the magnetic column of the second stator and the second stator is provided, the second stator It is provided with a chamfer between the lower end surface of the left end surface of the lower magnetic column and the second stator in magnetic column. The present invention is applicable to bistable electromagnetic clutch systems generally accuracy requirements for direct drive control of the brushless DC motor with a bistable electromagnetic clutch.