CN101114751A - Electrical brush - Google Patents
Electrical brush Download PDFInfo
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- CN101114751A CN101114751A CNA2006100526760A CN200610052676A CN101114751A CN 101114751 A CN101114751 A CN 101114751A CN A2006100526760 A CNA2006100526760 A CN A2006100526760A CN 200610052676 A CN200610052676 A CN 200610052676A CN 101114751 A CN101114751 A CN 101114751A
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- brush
- composite powder
- copper
- powder particle
- carbon
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Abstract
The invention relates to a brush used for a motor, in particular to the composing materials of the brush which belongs to the field of material science. The brush is formed by calendaring copper plating composite powder particles and carbon fibers, outer toner powder and outer binder. The components (weight accounts) of the composite powder particles are that: toner powder is from 65 to 79, binder is from 0.5 to 10 and alloying elements are from1.5 to 11; the weight account of the copper plating is from 10 to 35; the weight account of the carbon fibers is from 0.3 to 0.9; the weight account of the outer toner powder is from 10 to 18; the weight account of the outer binder is from 0.3 to 6. The invention is characterized by wear resistance and low resistivity and so on.
Description
Technical field
The present invention relates to the composition material of the brush that a kind of motor is used, particularly brush, belong to material science.
Background technology
Common brush utilizes metal to add graphite powder or the carbonaceous powders compacting sintering forms, people by changing copper powder and graphite powder ratio and add other yuan and usually obtain different resistance and sliding contact performance, through this class brush metal lographic examination is shown: copper powder and graphite powder respectively are the island shape and distribute on the brush working face, promptly be block isolated the existence, therefore, the resistance of this kind brush and sliding contact performance can not finely be utilized.So far the new component and the utilization of technology do not obtain substantial progress and breakthrough as yet in brush for electromachine and method field of manufacturing thereof.Chinese patent brush for electromachine and the manufacture method thereof (patent No.: 97106640.X) disclose a kind of brush for electromachine and manufacture method thereof, it is characterized in that copper facing or silver-plated graphite powder or the content of carbon dust are 10-100%, carbonaceous powders or metal dust or the mixed content of net person are 0-90%, according to copper or silver-plated graphite powder or carbon dust with carbonaceous powders or metal dust or both mixed content, the meeting of binding agent number is 0-20%.Its manufacture craft is at first each component to be mixed to stir, compacting then, and sintering is suppressed again again, carries out processing and forming at last.The pressure drop of this brush reaches 0.4-13V, and wear extent reaches 0.15-1.6mm/50hr, and coefficient of friction reaches 0.1-0.20.This brush can be widely used in scopes such as electric motor of automobile, AC induction motor aero dynamo, direct current machine.But its wearing and tearing are still bigger as can be seen, and the manufacture craft that relies on its composition is also comparatively complicated.
Summary of the invention
The invention solves existing in prior technology the problems referred to above, provide a kind of wear-resisting, resistivity is low, brush for electromachine.
Above-mentioned technical purpose of the present invention solves by the following technical programs:
A kind of brush is characterized in that it is to be formed by copper-plated composite powder particle and carbon fiber, outer carbon dust, outer layer binder calendering, the consisting of of described composite powder particle (weight portion): carbon dust 65-79, binding agent 0.5-10, alloying element 1.5-11; Described copper-plated be 10-35; Described carbon fiber is 0.3-0.9; Described outer carbon dust is 10-18; Described outer layer binder is 0.3-6.Above-mentioned composition is weight fraction.The carbon brush of using generally adopts copper or silver that carbon dust is wrapped up adding additives calendering formation then now, wearing and tearing easily, the outer layer binder that adds in calendering improves the resistivity of brush greatly, the present invention adopt multiple dose more have superior electrical conductivity can copper as the coating of carbon dust, make that its conductive effect is better; The adding carbon fiber has reduced the content of binding agent, has strengthened the anti-wear performance of brush when having improved electric conductivity.
As preferably, described binding agent is the mixture of phenolic resins and epoxy resin.It can be the mixture of top two kinds arbitrary proportion.The binding agent that the composite powder particle is used is identical with the composition of outer layer binder.
As preferably, described alloying element is a manganese phosphate.Alloying element is actually salt, can adopt the phosphorous salts of manganese phosphate or two aluminum phosphate and other form, but preferably phosphoric acid manganese, especially acid manganous phosphate.
Described carbon dust is graphite powder, coke powder or carbon black powder, as preferably, adopts carbon black powder.Composite powder requires identically with carbon dust and outer carbon dust, and promptly they can be one or more mixtures of above-mentioned graphite powder, coke powder or carbon black powder.
Inventive point of the present invention is on the composition of material, and the technology of used copper facing, calendering and whole manufacture process is those of ordinary skill and knows as required.
Adopt the brush of material of the present invention, the existing relatively brush decline of its resistivity 0.2-0.6 μ Ω cm, wear extent reduces to 0.1-0.5ml/100hr.
Therefore, the present invention have the life-span long, conductivity is high, the manufacture craft characteristic of simple.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: a kind of brush, adopt conventional method, at first the carbon black powder of 65g and the phenolic resins of 0.5g and the acid manganous phosphate of 1.5g are fully mixed, be made into the composite powder particle of diameter with comminutor at 5-12mm, plated with copper on the composite powder particle after the typing, control make copper-plated quality 10-12g on each composite powder particle the copper facing time; Above-mentioned copper-plated composite powder particle is added 10g carbon dust, 0.3g phenolic resins and 0.3g carbon fiber, evenly mix the back calendering and can obtain described brush.
Embodiment 2: a kind of brush, adopt conventional method, at first the acid manganous phosphate with 79g carbon black powder and 5g phenolic aldehyde, resin 5g epoxy resin and 11g fully mixes, be made into the composite powder particle of diameter with comminutor at 8-15mm, plated with copper on the composite powder particle after the typing, control make copper-plated quality 10-35g on each composite powder particle the copper facing time; Above-mentioned copper-plated composite powder particle is added 10g graphite powder, 4g carbon dust, 6g phenolic resins and 6g carbon fiber, evenly mix the back calendering and can obtain described brush.
Embodiment 3: a kind of brush, adopt conventional method, at first the carbon black powder of 70g and the phenolic resins of 8g and two aluminum phosphate of 11g are fully mixed, be made into the composite powder particle of diameter with comminutor at 10-15mm, plated with copper on the composite powder particle after the typing, control make copper-plated quality 10-12g on each composite powder particle the copper facing time; Above-mentioned copper-plated composite powder particle is added 15g carbon dust, 0.6g phenolic resins and 0.6g carbon fiber, evenly mix the back calendering and can obtain described brush.
Embodiment 4: a kind of brush, adopt conventional method, at first the coke powder of 65g and the phenolic resins of 0.5g and the acid manganous phosphate of 1.5g are fully mixed, be made into the composite powder particle of diameter with comminutor at 5-12mm, plated with copper on the composite powder particle after the typing, control make copper-plated quality 10-12g on each composite powder particle the copper facing time; Above-mentioned copper-plated composite powder particle is added 10g coke powder, 8g carbon black powder, 0.4g epoxy resin and 0.9g carbon fiber, evenly mix the back calendering and can obtain described brush.
Claims (5)
1. brush is characterized in that it is to be formed by copper-plated composite powder particle and carbon fiber, outer carbon dust, outer layer binder calendering, the consisting of of described composite powder particle: carbon dust 65-79, binding agent 0.5-10, alloying element 1.5-11; Described copper facing is 10-35; Described carbon fiber is 0.3-0.9; Described outer carbon dust is 10-18; Described outer layer binder is 0.3-6; More than form and be weight fraction.
2. brush according to claim 1 is characterized in that described carbon dust is a carbon powder, and described binding agent is the mixture of phenolic resins and epoxy resin.
3. brush according to claim 1 and 2 is characterized in that described alloying element is a manganese phosphate.
4. brush according to claim 1 and 2 is characterized in that described composite powder particle grain size is 10-15mm.
5. brush according to claim 3 is characterized in that described composite powder particle grain size is 10-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100526760A CN100438229C (en) | 2006-07-28 | 2006-07-28 | Electrical brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100526760A CN100438229C (en) | 2006-07-28 | 2006-07-28 | Electrical brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101114751A true CN101114751A (en) | 2008-01-30 |
| CN100438229C CN100438229C (en) | 2008-11-26 |
Family
ID=39022932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100526760A Expired - Fee Related CN100438229C (en) | 2006-07-28 | 2006-07-28 | Electrical brush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100438229C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130407A (en) * | 2010-12-24 | 2011-07-20 | 苏州东南碳制品有限公司 | Carbon brush for truck starting motor as well as manufacture method and application thereof |
| CN102480092A (en) * | 2010-11-25 | 2012-05-30 | 北京中电科电子装备有限公司 | Manufacture method of carbon brush, manufacture method of carbon rod and carbon brush |
| CN102904137A (en) * | 2012-10-26 | 2013-01-30 | 海门市通达碳业有限公司 | Composition for manufacturing novel electric brush |
| CN103682925A (en) * | 2013-12-10 | 2014-03-26 | 常熟柏科汽车零件再制造有限公司 | Motor electric brush |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03270660A (en) * | 1990-03-16 | 1991-12-02 | Mabuchi Motor Co Ltd | Carbon brush for miniature motor and manufacture thereof |
| CN1051176C (en) * | 1997-10-06 | 2000-04-05 | 上海交通大学 | Brush for electromachine and its prodn. method |
| CN1102664C (en) * | 2000-03-10 | 2003-03-05 | 上海交通大学 | Pantograph slide-plate of composite carbon-copper material reinforced with continuous long carbon fiber |
| CN1141763C (en) * | 2000-11-28 | 2004-03-10 | 上海交通大学 | Slide contact electric element having adhesive agent and making technology thereof |
-
2006
- 2006-07-28 CN CNB2006100526760A patent/CN100438229C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480092A (en) * | 2010-11-25 | 2012-05-30 | 北京中电科电子装备有限公司 | Manufacture method of carbon brush, manufacture method of carbon rod and carbon brush |
| CN102130407A (en) * | 2010-12-24 | 2011-07-20 | 苏州东南碳制品有限公司 | Carbon brush for truck starting motor as well as manufacture method and application thereof |
| CN102130407B (en) * | 2010-12-24 | 2012-08-22 | 苏州东南碳制品有限公司 | Carbon brush for truck starting motor as well as manufacture method and application thereof |
| CN102904137A (en) * | 2012-10-26 | 2013-01-30 | 海门市通达碳业有限公司 | Composition for manufacturing novel electric brush |
| CN103682925A (en) * | 2013-12-10 | 2014-03-26 | 常熟柏科汽车零件再制造有限公司 | Motor electric brush |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100438229C (en) | 2008-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIANYI MOTOR CO., LTD., HENGDIAN GROUP Free format text: FORMER OWNER: XU XIAOHUA Effective date: 20100719 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 322100 NO.96, RENMIN ROAD, DONGYANG CITY, ZHEJIANG PROVINCE TO: 322118 NO.196, GONGYE STREET,HENGDIAN ELECTRONIC INDUSTRIAL PARK, DONGYANG CITY, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20100719 Address after: 196 No. 322118 Zhejiang city of Dongyang province Hengdian Electronic Industrial Park Industrial Avenue Patentee after: Hengdian Group Linix Motor Co., Ltd. Address before: 322100 No. 96 Renmin Road, Zhejiang, Dongyang Patentee before: Xu Xiaohua |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20100728 |