Generator main shaft grounding device

By using densely braided copper braided brush bags and carbon brushes in the generator large shaft grounding device, and using elastic parts to increase the contact pressure, the problems of small contact pressure and large resistance in the prior art are solved, and better current flow and maintenance convenience is achieved.

CN222654988UActive Publication Date: 2025-03-21HUADIAN ELECTRIC POWER SCI INST CO LTD
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Patent Information

Application Number
CN202421321600.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-03-21
Estimated Expiration
2034-06-11

AI Technical Summary

Technical Problem

In the existing generator large shaft grounding device, the contact pressure between the braided brush braid and the generator large shaft is small, resulting in a small contact area and an increase in resistance, which is not conducive to the transmission of current.

Method used

A generator large shaft grounding device is designed, using densely braided copper braided brush bags and carbon brushes, and pushing them into contact with the generator large shaft through elastic parts to increase the contact pressure and contact area.

Benefits of technology

By increasing the contact area, the resistance between the brush bag body and the generator's large shaft is reduced, the current flow capacity is improved, and the carbon brush and brush bag body can be replaced online, making it convenient to maintain.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model provides a generator large shaft grounding device, which belongs to the technical field of generators, and comprises a support, a brush bag body, a first elastic piece, a carbon brush body, a second elastic piece and a grounding lead, the support is suitable for being installed on a generator shell, the brush bag body is installed on the support, and the brush bag body is used for abutting against a generator large shaft. The first elastic piece is connected with the brush bag body, the first elastic piece has elastic force for pushing the brush bag body to be close to a generator large shaft, the carbon brush body is installed on the support and used for abutting against the generator large shaft, and the second elastic piece is connected with the carbon brush body; according to the utility model, the brush bag body abuts against the generator large shaft under the pushing of the first elastic member, the carbon brush body abuts against the generator large shaft under the pushing of the second elastic member, and the first elastic member can increase the contact pressure between the brush bag body and the generator large shaft, thereby increasing the contact area. The resistance between the brush bag body and the large shaft of the generator is reduced, which is more beneficial to the circulation of current.
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