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Brush holder, brush device, motor, and method of manufacturing the brush device

A brush device and technology of brushes, applied in the direction of electromechanical devices, manufacturing motor generators, electric components, etc., can solve the problems of difficult manufacturing process and high manufacturing cost, and achieve the effect of low-cost manufacturing and easy connection

Active Publication Date: 2017-03-01
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since a mold is necessary for insert molding, a difficult technology such as design of the mold, insert injection molding using the mold, and a difficult manufacturing process are required, so there is a problem of high manufacturing cost.

Method used

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  • Brush holder, brush device, motor, and method of manufacturing the brush device
  • Brush holder, brush device, motor, and method of manufacturing the brush device
  • Brush holder, brush device, motor, and method of manufacturing the brush device

Examples

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no. 1 Embodiment approach

[0028] Hereinafter, a first embodiment embodying the present invention will be described with reference to the drawings.

[0029] Such as figure 1 The illustrated electric motor 1 is used, for example, as a drive source of a power window device (not shown) mounted on a vehicle. The electric motor 1 is a motor with a reduction gear, and includes a motor main body 2 and a reduction gear 3 that decelerates the rotation of the motor main body 2 and transmits high torque to a power window device.

[0030] A yoke case 4 (hereinafter referred to as a yoke 4 ) constituting the motor main body 2 is made of a conductive metal material and formed in a bottomed cylindrical shape. The cylindrical part 4a constituting the side wall of the yoke 4 has a racetrack shape in a cross section (cross section) perpendicular to the axial direction, and is formed in a flat shape (shape having a longitudinal direction and a widthwise direction). A flange portion 4c extending outward of the yoke 4 is ...

no. 2 Embodiment approach

[0070] Hereinafter, a second embodiment of the present invention will be described with reference to FIG. 7 . Compared with the first embodiment, the brush holder according to the present embodiment has the same main configuration, and only the connection method between the pigtail 40 and the first terminal 25 and the second terminal 26 is different. Therefore, only this point of difference will be described, and descriptions of other configurations will be omitted.

[0071] As shown in FIG. 7 , a first crimping piece 25 d is formed on the top end of the first connecting portion 25 b, and this first crimping piece 25 d is crimped with one end of the pigtail 40 . Thus, one end portion of the pigtail 40 is sandwiched between the first connection portion 25b and electrically connected to the first connection portion 25b. In addition, a second crimping piece 26d is provided on the second connecting portion 26b, and this second crimping piece 26d is crimped with one end of the bra...

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PUM

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Abstract

The present invention provides a brush holder which can be connected with flexible litzendraht wires and terminals easily and can be manufactured at a low cost. The brush holder (22) comprises a first end part (E1) used for keeping the brushes (23, 24) used for supplying power to an armature, a second end part used for keeping a plurality of terminals arranged at the reverse side of the first end part and electrically connected with the brushes (23, 24) via the flexible litzendraht wires. The brush holder (22) possesses notches (41, 42) which penetrate from the first end part to the second end part, and are opened towards the peripheral side, and connecting parts (25b, 26b)connected with the flexible litzendraht wires (40) on the terminals (25, 26) are inserted in the notches (41, 42).

Description

technical field [0001] The present invention relates to a brush holder holding a brush for power supply, and a motor provided with the brush holder. Background technique [0002] A motor in which a speed reducer is integrated is known, for example, as described in Patent Document 1. Such electric motors are widely used in automobiles and the like. [0003] The motor described in Patent Document 1 includes a connected motor main body and a speed reducer. An armature is rotatably housed inside a bottomed cylindrical yoke case constituting the motor main body, and a brush device is fitted into an opening of the yoke case. The speed reducer is connected to the yoke case with a brush device interposed between it and the yoke case. The brush device includes a brush holder fitted into the opening of the yoke case so as to close the opening of the yoke case. The brush holder holds at its end on the inner side of the yoke housing a plurality of brushes which are in sliding contac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/14H02K15/00
Inventor 西川浩平
Owner DENSO CORP