Brush holder device for dynamoelectric machine
AssigneeAsmo Co., Ltd.
InventorYasuaki Uchida
Life of this patent
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Abstract
Each brush holder is formed by bending a holder material made of a metal plate, so that the brush holder is shaped into a generally rectangular tubular body, which includes opposed first and second lateral walls, a top wall and a base wall. A base plate includes holder limiting grooves. Each brush holder is received in a corresponding one of the limiting grooves. The limiting groove limits an increase in a space between the first lateral wall and the second lateral wall of the corresponding brush holder. Furthermore, each brush is received in a corresponding one of the brush holders in a slidable manner in a sliding direction toward and away from a commutator of a motor.
Claims18
A brush holder device for a dynamoelectric machine, the brush holder device comprising:
- a base plate that is made of a dielectric resin material, wherein the base plate includes at least one limiting portion;
- at least one brush holder that is secured to the base plate, wherein:
- each of the at least one brush holder is formed by bending a holder material made of a metal plate, so that each of the at least one brush holder is shaped into a generally rectangular tubular body, which includes opposed first and second lateral walls, a top wall and a base wall;
- at least one of the at least one limiting portion of the base plate limits an increase in a space between the first lateral wall and the second lateral wall of a corresponding one of the at least one brush holder;
- and
- at least one brush, each of which is received in a corresponding one of the at least one brush holder in a slidable manner in a sliding direction toward and away from a commutator of the dynamoelectric machine.
Dependencies are inferred from the claim text.