Patent ID: 7605506
Filing Date: 2009-10-20
Classification: B25F,H02K

Abstract:
1. An electric motor with reduction gear mechanism including a motor body provided with a rotating shaft and a reduction gear mechanism for decelerating rotation of the rotating shaft to output it from an output shaft, the electric motor comprising: an armature provided with a commutator fixed to the rotating shaft and a coil connected to the commutator; a motor yoke having a magnet mounted on its inner face and rotatably accommodating the armature; a brush holder mounted inside the motor yoke and holding a pair of brushes slide-contacting with the commutator; a gear case fixed to the motor yoke and accommodating the reduction gear mechanism; a connector provided with a pair of power-feeding terminals each connected to a power source, the connector being disposed on the gear case; an accommodating case provided integrally with the brush holder and projecting toward the gear case via an opening portion of the motor yoke to be disposed on an outer face of the gear case; and a noise-preventing means accommodated in the accommodating case and connected between the brushes and the power-feeding terminal.