Patent ID: 7053510
Filing Date: 2006-05-30
Classification: H02K

Abstract:
1. An electrical actuator having a DC motor mounted on a heat-generating member giving off radiant heat, said DC motor comprising: a rotor having a permanent magnet for forming a plurality of magnetic poles around a periphery thereof; and a stator having a plurality of energizing coils and being disposed around a periphery of said rotor to thereby generate a rotary force to said rotor, wherein a heat-shielding means for shielding said electrical actuator from said radiant heat is disposed between said DC motor and said heat-generating member, the heat-shielding means includes a seating portion that is coupled to the motor, and a heat shielding wall that extends from a periphery of the seating portion so as to shield the DC motor from the radiant heat, the heat shielding wall being positioned away from the DC motor to provide an open space extending from an area outside said heat-shielding means to an area between the DC motor and said heat-shielding wall, wherein said heat shielding wall extends along said DC motor and terminates at a position distal to said seating portion, to provide said heat shielding wall with a free end.