| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a DC motor in which adverse effect due to spark during rectification can be suppressed.SOLUTION: A DC motor 10 includes a rotor 13 where an armature core 31 and a commutator 32 are provided, integrally rotatably, on a rotating shaft 18, and a winding 33 wound around a plurality of teeth T juxtaposed in the circumferential direction of the armature core 31 is connected electrically with the commutator 32, a brush 43 that is brought into pressure contact with the commutator 32 and conducted electrically therewith, and a stator 11 where a second field magnet 22 facing the armature core 31 on the commutator 32 side in the axial direction is provided on a second disk member 16 (the yoke 12). The second field magnet 22 rotates the rotor 13 by interaction with a magnetic field induced in the rotor 13 by electrification of the winding 33, and acts as a magnet for blowing out a spark generated between the brush 43 and the commutator 32.</p> |
