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Improved structure of electric brush

A brush and carbon brush technology, applied in circuits, current collectors, electrical components, etc., can solve problems such as inconvenient operation

Inactive Publication Date: 2011-11-09
章焰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant applied for an invention patent named a brush on May 17, 2006. The announcement number is CN2896613Y. It has a simple structure, reduces the mutual resistance between the carbon brush and the commutator, reduces noise, and improves work performance, prolonging the service life of the carbon brush, but in the process of assembling the commutator, it is necessary to use auxiliary tooling to position the carbon brush externally and then insert it into the commutator, then take out the auxiliary tooling, return the carbon brush to the commutator Card connection, so the operation is more inconvenient

Method used

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  • Improved structure of electric brush
  • Improved structure of electric brush
  • Improved structure of electric brush

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Embodiment Construction

[0011] Below in conjunction with accompanying drawing, the present invention will be described in further detail:

[0012] Such as figure 1 , 2 As shown, an improved brush structure of the present invention includes a brush holder plate 1, a carbon brush assembly 2, a rotating shaft and a torsion spring 3, and the rotating shaft is vertically arranged on the end surface of the brush holder plate with the central hole axis of the brush holder plate as a symmetrical axis , the rotating shaft includes the lower shaft 41 of the sleeve torsion spring 3 and the upper shaft 42 of the carbon brush assembly 2, the diameter of the upper shaft is smaller than the diameter of the lower shaft, one end of the torsion spring 3 is fixedly connected to the lower shaft 41, and the torsion spring is another One end is connected to the middle section of the carbon brush assembly, the installation end 21 of the carbon brush assembly 2 is transferred to the upper shaft 42, and the outer eaves of t...

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Abstract

The invention discloses an improved structure of an electric brush, which comprises a brush frame plate, a carbon brush component, a rotating shaft and a torsion spring. The rotating shaft consists of a lower shaft sleeved with the torsion spring and a upper shaft arranged with the carbon brush component, the diameter of the upper shaft is smaller than the diameter of the lower shaft, an installation end of the carbon brush component is connected with the upper shaft, an outer edge of the upper end face of the lower shaft is also provided with a lower bulge, and an outer wall on the lower part of the installation end of the carbon brush component is provided with an upper bulge which is jammed with the lower bulge when the carbon brush component is revolved outward. Therefore, when the electric brush is plugged with a commutator, the carbon brush component can only be rotated outward so that the lower bulge is jammed with the upper bulge. When the plugged installation is finished, thecarbon brush component can be pulled up slightly to relieve the jamming. The carbon brush component can move back to the original position and are jointed with the commutator without the aid of any tooling, and the operation is very convenient.

Description

technical field [0001] The invention relates to the field of motor accessories, in particular to motor brushes. technical background [0002] Brushes are widely used in DC motors and AC series motors and play a key role. The applicant applied for an invention patent named a brush on May 17, 2006. The announcement number is CN2896613Y. It has a simple structure, reduces the mutual resistance between the carbon brush and the commutator, reduces noise, and improves work performance, prolonging the service life of the carbon brush, but in the process of assembling the commutator, it is necessary to use auxiliary tooling to position the carbon brush outward and then insert it into the commutator, then take out the auxiliary tooling, return the carbon brush and commutator Card connection, so the operation is more inconvenient. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an improved brush structure, which is impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R39/26H01R39/38
Inventor 马耀辉
Owner 章焰