| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC motor with a brush which improves heat radiation performance of a brush holder and thereby inhibits temperature rise of the brush, and to provide a vehicle auxiliary machine system using the DC motor.SOLUTION: A DC motor with a brush includes: a brush 8 which slidably contacts with a commutator, which rotates with a rotor around which a coil is wound, and thereby is electrically connected with the coil; a brush holder 9 holding the brush 8; and a metal plate member 11 holding a brush holder attachment part 10 formed by an insulation material. The DC motor with the brush has a recessed part 10m, to which the brush holder 9 is fixed, at the brush holder attachment part 10. A protruding part 13, which extends from the bottom surface side of the recessed part 10m to the upper edge side while facing a side surface 10s1 of the recessed part 10m, is provided at the brush holder 9. The protruding part 13 and the side surface 10s1 are thermally connected. |
