| 摘要 |
The small-size motor is improved by installing the locations of mixture among commutators (3-1, 3-2) in order to restrain the sparks and the noise between a commutator and a brush. The mixture (5-1), which is composed of conductive microparticles and an oil, becomes a resistor among commutators, and is in use instead of the circuit elements such as a condenser that is a circuit element to restrain the sparks. Accordingly a motor is miniaturized.
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