EP0525222B1 - Gleitkontaktstück für hohe Stromdichten - Google Patents
Gleitkontaktstück für hohe Stromdichten Download PDFInfo
- Publication number
- EP0525222B1 EP0525222B1 EP91112222A EP91112222A EP0525222B1 EP 0525222 B1 EP0525222 B1 EP 0525222B1 EP 91112222 A EP91112222 A EP 91112222A EP 91112222 A EP91112222 A EP 91112222A EP 0525222 B1 EP0525222 B1 EP 0525222B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sliding contact
- admixture
- copper
- contact member
- member according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/12—Manufacture of brushes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/24—Laminated contacts; Wire contacts, e.g. metallic brush, carbon fibres
Definitions
- the invention relates to a sliding contact piece for high current densities based on copper-carbon with an admixture of a metal or a metal alloy, the melting temperature of which is significantly lower than that of the copper.
- Such sliding contact pieces are in particular carbon brushes, e.g. for starters, as well as contact strips, e.g. for pantographs.
- DE-C-154,287 shows the idea of first providing the carbon particles of a sliding contact piece with a metallic coating and then with a tin coating. These particles are heated and pressed so that they form a cohesive body as a result of soldering.
- Usual sliding contact pieces contain additives of lead or antimony.
- the purpose of the additives is a good cleaning effect, cooling of the contact piece during operation and also good sliding properties on the counter contact piece.
- these known additives are toxic or harmful to the environment.
- the invention is therefore based on the object of proposing a sliding contact piece which does not require any significant additions of lead or antimony, without the operating properties of the sliding contact piece suffering as a result.
- the invention is characterized in that the admixture is separated from the copper by a layer preventing its alloy and contains no significant proportions of lead or antimony.
- a first possibility is characterized in that the admixture is coated in such a way that it does not form any alloy with the copper. It is primarily intended to coat the admixture before it is introduced into the mold for producing the sliding contact piece.
- the admixture is introduced into a binder in such a way that it does not form an alloy with the copper.
- the binder can also be carbon (graphite), possibly with other binder additives. It is also important here that the admixture is covered by the binder.
- the sliding contact piece consists of several layers which are arranged next to one another in such a way that they jointly touch a counter contact (current collector, collector) and which contain the copper or the admixture separately from one another.
- the individual layers are pressed or glued together and thereby form the sliding contact piece.
- an admixture is referred to in the context of this invention, this also includes a sliding contact piece with discrete layers arranged next to one another and connected to one another to form the sliding contact piece, each of which contains the copper or the admixture separately from one another.
- Claim 7 indicates preferred binders or coating agents. It should be mentioned that these become electrically conductive during the manufacturing process by coking.
- Claim 8 again specifies preferred binding agents or coating agents.
- the melting temperature of the selected admixture is significantly lower than that of copper and the oxide of the admixture is not harder than approx. 7, measured on the Mohs hardness scale.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Contacts (AREA)
- Motor Or Generator Current Collectors (AREA)
- Conductive Materials (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91112222A EP0525222B1 (de) | 1991-07-22 | 1991-07-22 | Gleitkontaktstück für hohe Stromdichten |
ES91112222T ES2072489T3 (es) | 1991-07-22 | 1991-07-22 | Pieza de contacto deslizante para altas densidades de corriente. |
AT91112222T ATE123360T1 (de) | 1991-07-22 | 1991-07-22 | Gleitkontaktstück für hohe stromdichten. |
DE59105627T DE59105627D1 (de) | 1991-07-22 | 1991-07-22 | Gleitkontaktstück für hohe Stromdichten. |
BR929202788A BR9202788A (pt) | 1991-07-22 | 1992-07-21 | Peca de contato deslizante para atlas densidades de corrente e motor de partida com escovas de carvao |
KR1019920012995A KR950012479B1 (ko) | 1991-07-22 | 1992-07-21 | 고전류 밀도용 미끄럼 접촉자 |
US07/917,712 US5270504A (en) | 1991-07-22 | 1992-07-21 | Sliding contact member for high currrent densities |
JP4195049A JPH0782898B2 (ja) | 1991-07-22 | 1992-07-22 | 高電流密度用滑り接触部材乃至しゅう動部材及びスタータ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91112222A EP0525222B1 (de) | 1991-07-22 | 1991-07-22 | Gleitkontaktstück für hohe Stromdichten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0525222A1 EP0525222A1 (de) | 1993-02-03 |
EP0525222B1 true EP0525222B1 (de) | 1995-05-31 |
Family
ID=8206964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91112222A Expired - Lifetime EP0525222B1 (de) | 1991-07-22 | 1991-07-22 | Gleitkontaktstück für hohe Stromdichten |
Country Status (8)
Country | Link |
---|---|
US (1) | US5270504A (es) |
EP (1) | EP0525222B1 (es) |
JP (1) | JPH0782898B2 (es) |
KR (1) | KR950012479B1 (es) |
AT (1) | ATE123360T1 (es) |
BR (1) | BR9202788A (es) |
DE (1) | DE59105627D1 (es) |
ES (1) | ES2072489T3 (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6123252A (en) * | 1999-03-19 | 2000-09-26 | Deutsche Carbone Ag | Process for fixing a graphite-rich material onto a metallic body |
SE9904350D0 (sv) | 1999-11-30 | 1999-11-30 | Abb Ab | A contact element and a contact arrangement |
JP3929746B2 (ja) * | 2001-10-25 | 2007-06-13 | トライス株式会社 | 金属黒鉛質ブラシ |
JP3661784B2 (ja) * | 2001-10-25 | 2005-06-22 | トライス株式会社 | 金属黒鉛質ブラシ |
JP3770476B2 (ja) | 2001-10-25 | 2006-04-26 | トライス株式会社 | 金属黒鉛質ブラシ |
DE10201923B4 (de) * | 2002-01-19 | 2006-05-24 | Deutsche Carbone Ag | Verfahren zur Herstellung eines Gleitkontaktstücks für mittlere bis hohe Stromdichten |
JP3797662B2 (ja) * | 2002-01-30 | 2006-07-19 | トライス株式会社 | 銅黒鉛質ブラシ |
JP3914804B2 (ja) * | 2002-04-04 | 2007-05-16 | トライス株式会社 | 金属黒鉛質ブラシ及びその製造方法 |
JP4512318B2 (ja) * | 2003-02-04 | 2010-07-28 | 日立化成工業株式会社 | 積層ブラシ |
GB0303752D0 (en) * | 2003-02-18 | 2003-03-26 | Morgan Crucible Co | Composite electrical brush construction |
FR2858473A1 (fr) * | 2003-08-01 | 2005-02-04 | Carbone Lorraine Applications Electriques | Piece de contact electrique glissant |
DE10359896A1 (de) * | 2003-12-19 | 2005-07-21 | Hoffmann & Co. Elektrokohle Ag | Kohlebürste sowie Verfahren und Werkstoff zu ihrer Herstellung |
DE10361166A1 (de) * | 2003-12-22 | 2005-07-28 | Meisel, Jörg, Dr. | Bauteilanordnung für eine Prothese |
WO2005099048A1 (en) * | 2004-04-08 | 2005-10-20 | Carbone Lorraine Applications Electriques | Lead-free brush grade for high temperature applications |
JP2006320067A (ja) * | 2005-05-11 | 2006-11-24 | Hitachi Chem Co Ltd | 金属黒鉛質ブラシの製造法 |
US8309773B2 (en) | 2010-02-02 | 2012-11-13 | Calanese International Corporation | Process for recovering ethanol |
JP5901279B2 (ja) * | 2011-01-31 | 2016-04-06 | トライス株式会社 | カーボンコンミテータ及びその製造方法 |
CN111082607A (zh) * | 2018-10-22 | 2020-04-28 | 株式会社电装 | 电接触装置和包括电接触装置的旋转电机 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE289101C (es) * | ||||
DE154287C (es) * | ||||
US2234834A (en) * | 1937-10-09 | 1941-03-11 | Westinghouse Electric & Mfg Co | Electrical contact |
US2418811A (en) * | 1943-10-08 | 1947-04-15 | Gen Electric | Contact element |
JPS5536041B2 (es) * | 1972-04-28 | 1980-09-18 | ||
CH589917A5 (en) * | 1974-05-13 | 1977-07-29 | Lonza Ag | Graphite mouldings contg. fine metal powder - with optimum electrical conductivity and abrasion resistance, suitable for brushes |
JPS589823B2 (ja) * | 1977-05-31 | 1983-02-23 | 三菱マテリアル株式会社 | ブラシ材用Cu基焼結合金 |
JPS5818978B2 (ja) * | 1980-03-03 | 1983-04-15 | 日立化成工業株式会社 | 金属黒鉛質電刷子成形用組成物 |
US4332988A (en) * | 1980-11-12 | 1982-06-01 | General Motors Corporation | Radio frequency interference suppressing ignition distributor |
JPS57185685A (en) * | 1981-05-09 | 1982-11-15 | Toho Beslon Co | Brush for electric machine and method of producing same |
JPS595583A (ja) * | 1982-06-30 | 1984-01-12 | 田中貴金属工業株式会社 | 整流子用接触片材料 |
JPH0388291A (ja) * | 1989-08-30 | 1991-04-12 | Hitachi Chem Co Ltd | 金属黒鉛質ブラシ |
-
1991
- 1991-07-22 EP EP91112222A patent/EP0525222B1/de not_active Expired - Lifetime
- 1991-07-22 DE DE59105627T patent/DE59105627D1/de not_active Expired - Lifetime
- 1991-07-22 ES ES91112222T patent/ES2072489T3/es not_active Expired - Lifetime
- 1991-07-22 AT AT91112222T patent/ATE123360T1/de not_active IP Right Cessation
-
1992
- 1992-07-21 US US07/917,712 patent/US5270504A/en not_active Expired - Lifetime
- 1992-07-21 BR BR929202788A patent/BR9202788A/pt not_active IP Right Cessation
- 1992-07-21 KR KR1019920012995A patent/KR950012479B1/ko not_active IP Right Cessation
- 1992-07-22 JP JP4195049A patent/JPH0782898B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE59105627D1 (de) | 1995-07-06 |
EP0525222A1 (de) | 1993-02-03 |
KR930003469A (ko) | 1993-02-24 |
ES2072489T3 (es) | 1995-07-16 |
ATE123360T1 (de) | 1995-06-15 |
JPH05226048A (ja) | 1993-09-03 |
US5270504A (en) | 1993-12-14 |
BR9202788A (pt) | 1993-03-23 |
JPH0782898B2 (ja) | 1995-09-06 |
KR950012479B1 (ko) | 1995-10-18 |
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