To provide a commutator motor where a brush is excellent in good electrical conductivity and durability and high efficiency and long operating life are achieved.
In the commutator motor with a structure where the brush and commutator energize in contact with each other and rotate, the brush includes a low-resistance conductive layer on a surface of a high-resistance substrate of the brush. The commutator motor forms an anisotropic conductivity in a direction directly going to a direction of a groove direction, achieves the good electrical conductivity and durability of the brush, and strikes a balance between the high efficiency and long operating life by forming a plurality of grooves with stripe shapes on the conductive layers on upper and lower surfaces that are parallel to a slide of the brush.
KUROZUMI SEIJI
| JP3549279B2 | 2004-08-04 | |||
| JPH0965601A | 1997-03-07 | |||
| JPH0268667U | 1990-05-24 | |||
| JPH1070868A | 1998-03-10 |
Daisuke Nagano
Kentaro Fujii
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