Electronically commutated motor, in particular for a rotor of a fan drawing cooling air for automotive vehicles

摘要

The motor has a regulator housing (29) which is thermally and mechanically separate from the motor housing (9), to allow dissipation of the waste heat generated by the electronic power components of the regulator circuit. The outer peripheral surface of the regulator housing has cooling ribs (37), extending in the flow direction of the cooling air stream provided by the cooling fan (3) attached to the motor shaft, with the regulator housing projecting axially from the motor housing.