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Brush holder, brush holder structure, and brush motor

A brush motor and brush holder technology, which is applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of inner hole size tolerance, easy deformation, large error, etc., to improve performance reliability and size controllability , not easy to deform the effect

Pending Publication Date: 2017-12-01
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the brush holder in the first solution above is formed by stamping, which is easily deformed during transportation, making the size of the inner hole of the brush holder uncontrollable, which further affects the size of the brush and the inner hole wall of the brush holder
[0006] (2) The brush holder structure of the above-mentioned second solution is obtained by demoulding the upper and lower molds. The tolerance of the inner hole size of the brush holder is formed by the accumulation of the upper and lower mold cores, which leads to the uncontrollable inner hole size of the brush holder and the error Larger; in turn directly affects the size of the brush and the inner hole wall of the brush holder

Method used

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  • Brush holder, brush holder structure, and brush motor
  • Brush holder, brush holder structure, and brush motor
  • Brush holder, brush holder structure, and brush motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This embodiment provides a brush holder, such as Figure 4 to Figure 6 As shown, the brush holder 5 in this embodiment includes a brush holder body 51 and a brush holder cover 52 . The brush holding body 51 is provided with a brush accommodating hole 511 for accommodating the brush. The brush holder cover 52 is closed on the brush holder body 51 to prevent the brush from popping out of the brush accommodating hole 511 . Wherein, the brush holder body 51 is a molded part, and the brush holder cover 52 and the brush holder body 51 are a split structure.

[0050]The brush holder provided in this embodiment is formed by forming the brush holder body 51 by a mould, and the brush holder body 51 and the brush holder cover 52 are provided with a split structure, so that the brush holder body 51 is not easily deformed during transportation, and When forming the brush holder body 51, the brush accommodating hole 511 is obtained by demoulding a mold core, and there is no influen...

Embodiment 2

[0052] Preferably, this embodiment provides a brush holder, compared with the previous embodiment, such as Figure 4 to Figure 6 As shown, the brush handle cover 52 in this embodiment is engaged with the brush handle body 51 . Specifically, the brush handle cover 52 and the brush handle body 51 are engaged and connected through an engaging structure.

[0053] In this embodiment, the brush holder cover 52 and the brush holder body 51 are engaged and connected, so that when assembling the brush holder body 51 and the brush holder cover 52, the brush holder provided in this embodiment does not need assembly tooling, and only needs to snap the two together. That is, the assembly speed of the brush holder, the brush holder structure and the brushed motor is improved, and the manufacturing cost of the brush holder, the brush holder structure and the brushed motor is reduced.

[0054] In this embodiment, there are several schemes for the snap-fit ​​connection between the brush handl...

Embodiment 3

[0060] Preferably, this embodiment provides a brush holder, compared with Embodiment 2, such as Figure 4 to Figure 6 As shown, in this embodiment, the engaging connection mode of the brush holder body 51 and the brush holder cover 52 is specifically as follows: in the brush holder structure of this embodiment, the upper end of the brush holder body 51 is provided with an engaging member 512; A clamping hole 521 is opened; wherein, the engaging member 512 cooperates with the clamping hole 521 to cover the brush handle cover 52 on the brush handle body 51 . On this basis, this embodiment further designs the engaging part 512 and the locking hole 521 as follows:

[0061] Such as Figure 5 As shown, the locking hole 521 is configured as a through hole passing through the brush handle cover 52 . Correspondingly, as Figure 4 , Figure 6 to Figure 9 As shown, the engaging member 512 in this embodiment includes a first portion 5122 and a second portion 5121 . Wherein, the lower...

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Abstract

The invention relates to a brush holder, a brush holder structure, and a brush motor, and relates to the technical field of motors. According to the main technical scheme, the brush holder comprises a brush holder body and a brush holder cover, the brush holder body is provided with a brush containing hole, the brush holder cover covers the brush holder body and is used for preventing a brush from being ejected out from the brush containing hole, the brush holder body is a mold forming piece, and the brush holder cover and the brush holder body are split structures. The brush holder structure comprises the above brush holder and a brush holder fixing plate, and the brush holder is fixed on the brush holder fixing plate. The brush motor comprises the above brush holder structure and the brush. According to the brush holder, the brush holder structure, and the brush motor, the dimension controllability of the brush containing hole on the brush holder is improved, the performance of the brush motor is enhanced, and the technical processes of the brush holder, the brush holder structure and the brush motor, and the investment of an assembling tool are reduced.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a brush holder, a brush holder structure and a brushed motor. Background technique [0002] The function of the brush device in the brushed DC motor is to connect the static external DC circuit with the rotating armature circuit through the commutator. The brush device mainly includes a brush and a brush holder structure; the brush holder structure includes a brush holder and a brush holder fixing plate; the brush is a conductive block made of graphite, etc., and is placed in the brush holder. The brush holder is fixed on the brush holder fixing plate, and the brush holder fixing plate is installed on the end cover or the bearing. Among them, the main function of the brush holder is to ensure that the brush can move freely up and down in it; and there must be an appropriate gap between the brush and the inner wall of the brush holder. If the gap is too large, it will increase the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/14H02K23/00
CPCH02K5/145H02K23/00
Inventor 刘健宁高峰龚敏杨晓琴龙胜民张静郑易
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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