Check patentability & draft patents in minutes with Patsnap Eureka AI!

Electric brush-commutator structure with carbon nanotubes

A technology of carbon nanotubes and commutators, which can be used in current collectors, rotating current collectors, circuits, etc., and can solve problems such as large resistance

Active Publication Date: 2020-06-16
SHENZHEN TSIMEC CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current does not pass through the entire contact surface, but is limited to a small area that becomes a conductive point. This is because the contact is made by relying on the point where several tiny protrusions of the two contact surfaces touch one piece. When the current flows through these points, it is concentrated And generate resistance, which makes the resistance larger compared with the surface contact

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electric brush-commutator structure with carbon nanotubes
  • Electric brush-commutator structure with carbon nanotubes
  • Electric brush-commutator structure with carbon nanotubes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] figure 2 As a specific embodiment 1 of the present invention, a brush includes a brush body (1) and a carbon nanotube brush composed of a plurality of carbon nanotubes (2). A carbon nanotube brush composed of a plurality of carbon nanotubes (2) is arranged on the first surface of the brush body (1). The carbon nanotube (2) has a first end A arranged on the brush body (1) and a free second end B, and the outer wall of the carbon nanotube contacts or adheres to the commutator (3). The carbon nanotube (2) has a second end B extending from the starting point C where the carbon nanotube is in contact with the commutator to the second end B of the carbon nanotube, which is in contact with or bonded to the commutator (3). part, and a second part extending from the brush body (1) to the starting point C of this first part. The first portion is at least partially in contact with or in contact with the commutator. Preferably, graphite or graphene, boron nitride, transition me...

Embodiment 2

[0025] Different from the carbon nanotube brush being arranged on the electric brush in embodiment 1, as image 3 As shown, in this embodiment, the commutator (3) surface has a carbon nanotube brush composed of a plurality of carbon nanotubes (2), and the carbon nanotube brush has a first end arranged on the commutator and a free The second end of the carbon nanotube (2) is in contact with or pasted on the conductive substrate of the brush. The carbon nanotubes are evenly distributed on the outer peripheral surface of the commutator (3). The distance between the conductive base of the brush and the commutator should be such that the outer wall of the carbon nanotube contacts or adheres to the conductive base of the brush. Preferably, the surface of the conductive base of the brush is provided with conductive materials such as graphite or graphene, and the conductive material is not limited thereto. The surface of the conductive substrate of the electric brush has a crystal p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
friction coefficientaaaaaaaaaa
Login to View More

Abstract

The invention relates to an electric brush-commutator structure for a motor. A carbon nano tube brush is arranged on an electric brush body / a commutator; the outer walls of carbon nano tubes contact with the commutator / electric brush. According to the prior art, an electric brush body directly contacts with a commutator to realize electric conduction or the end parts of carbon nano tubes contact with the commutator so as to realize electric conduction. The electric brush-commutator structure can assist in obviously reducing the mechanical wear and electrical wear of the electric brush comparedwith the prior art.

Description

technical field [0001] The present invention relates to a brush and / or commutator structure for use in a generator or electric motor. Background technique [0002] It is well known that friction inevitably exists between two interfaces in a device with relative motion. The friction and wear between two solid surfaces originate from the microscopic roughness between the surfaces. The greater the normal pressure between the two, the greater the friction and thus the greater the wear. According to Coulomb's law, the frictional force (f) is proportional to the normal force (FN): f = μFN, where μ is the coefficient of friction. The friction coefficient between most solids is between 0.1-0.5, and the friction coefficient is between 0.05-0.1 when containing liquid lubricants. The distance between the skate and the ice surface is about 0.01. Usually, it is hoped that the friction should be as small as possible (when using friction as the transmission mode such as clutch, CVT (con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01R39/24H01R39/20H01R39/26H01R39/04H02K13/00
CPCH01R39/04H01R39/20H01R39/24H01R39/26H02K13/006
Inventor 杨德智
Owner SHENZHEN TSIMEC CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com