CN203660724U

CN203660724U - Rotary brush frame

Info

Publication number: CN203660724U
Application number: CN201420017220.0U
Authority: CN
Inventors: 徐振丰; 方新权
Original assignee: ZHEJIANG WUYI GONGLI ELECTRIC APPLIANCE CO Ltd
Current assignee: ZHEJIANG WUYI GONGLI ELECTRIC APPLIANCE CO Ltd
Priority date: 2014-01-10
Filing date: 2014-01-10
Publication date: 2014-06-18
Anticipated expiration: 2024-01-10

Abstract

The utility model discloses a rotary brush frame comprising brush frame base, a copper brush frame, a brush, a torsion spring, a brush frame rotating part, a copper contact sheet and stainless steel sheet springs, wherein the copper brush frame, the brush, the torsion spring and the brush frame rotating part are arranged on the brush frame base, the copper contact sheet is arranged on one side of the brush frame rotating part, and one stainless steel sheet spring is arranged below each contact when the copper contact sheet is in contact with the brush frame base. The added stainless steel sheet springs increase the contact pressure of the contacts when the copper contact sheet contacts the contacts, a contact and an electric brush box of a product are enabled to be in good contact during reversing rotation and vibration, and heat is not generated to cause contact burnout.

Description

A kind of rotation brush holder

Technical field

The utility model relates to a kind of motor component, more particularly, is rotation brush holder.

Background technology

Rotation brush holder is the important parts of motor, and effect is by spring, pressure to be added on the rotation brush holder contacting with commutator or collector ring surface sliding, makes its conduction current stably between fixed body and rotary body.And existing rotation brush holder in use exists a problem, copper contact chip puts on the insufficient pressure on contact, makes product contact in the time of commutation rotation and operational vibration cause with brush loose contact generating heat, and causes that contact burns.

Utility model content

Because prior art exists the problems referred to above, the utility model proposes a kind of rotation brush holder, it can effectively solve the above-mentioned problems in the prior art.

The utility model addresses the above problem by the following technical programs:

A kind of rotation brush holder, it comprises carbon brush holder pedestal, be located at compound brush frame, carbon brush, torsion spring and carbon brush holder revolving part on described carbon brush holder pedestal, be located at the copper contact chip of described carbon brush holder revolving part one side, below the contact in the time that described copper contact chip contacts with described carbon brush holder pedestal, be provided with a stainless steel substrates spring.

Because rotation brush holder of the present utility model has adopted above-mentioned technological means, by increase stainless steel substrates spring in the time that copper contact chip contacts with contact, increase the contact of contact, contacting of making product close with brush contact in the time of commutation rotation and operational vibration is good, can not generate heat and causes that contact burns.

Accompanying drawing explanation

Fig. 1 is the cutaway view of an embodiment of the present utility model

Embodiment

Below in conjunction with embodiment, describe the utility model in detail.

Shown in Figure 1, the rotation brush holder of the present embodiment, it comprises carbon brush holder pedestal 1, be located at compound brush frame 4, carbon brush 5, torsion spring 7 and carbon brush holder revolving part 3 on described carbon brush holder pedestal 1, be located at the copper contact chip 2 of described carbon brush holder revolving part 3 one sides, below the contact in the time that described copper contact chip 2 contacts with described carbon brush holder pedestal 1, be provided with a stainless steel substrates spring 6.As shown in Figure 1, under the contact of upper and lower both sides, be equipped with stainless steel substrates spring 6.

Principle: thus stainless steel substrates spring 6 acts on copper contact chip the contact that increases contact, and contacting of making product close with brush contact in the time of commutation rotation and operational vibration is good, can not generate heat and causes that contact burns.

Should be understood that these execution modes are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.

Claims

1. a rotation brush holder, it comprises carbon brush holder pedestal, be located at compound brush frame, carbon brush, torsion spring and carbon brush holder revolving part on described carbon brush holder pedestal, the copper contact chip of being located at described carbon brush holder revolving part one side, is characterized in that: below the contact in the time that described copper contact chip contacts with described carbon brush holder pedestal, be provided with a stainless steel substrates spring.