| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor that can effectively prevent a spark by changing only a structure of the motor without a ring varistor and a capacitor. <P>SOLUTION: The motor comprises a shaft 1, an armature, a slot 11, a plurality of coils, a magnet, a commutator, a plurality of segments 15, a positive pole brush 5a, and a negative pole brush 5b. In the motor, each of the coils includes a first coil and a second coil that is wound in a direction opposite to that of the first coil. Through the positive pole brush 5a and the negative pole brush 5b, an electric current is supplied to each of the coils at a fixed period. The electric current supplied to the first coil and the second coil at each of the coils is set so as to flow in the same winding direction, and the positive pole brush 5a and the negative pole brush 5b are arranged so as to shift a supply timing of the electric current to the first coil and the second coil. <P>COPYRIGHT: (C)2012,JPO&INPIT |
