EP0525222B1 - Pièce de contact glissant pour densités de courant élevées - Google Patents

Pièce de contact glissant pour densités de courant élevées Download PDF

Info

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
Application number
EP91112222A
Other languages
German (de)
English (en)
Other versions
EP0525222A1 (fr
Inventor
Ehrhard Dipl.-Ing. Grohs
Conrad Dr. Reynvaan
Lothar Dipl.-Chem. Biering
Jürgen Dipl.-Ing. Spangenberg
Klaus Dipl.-Ing. Groht
Arwed Dr. Uecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Carbone AG
Original Assignee
Deutsche Carbone AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE59105627T priority Critical patent/DE59105627D1/de
Application filed by Deutsche Carbone AG filed Critical Deutsche Carbone AG
Priority to ES91112222T priority patent/ES2072489T3/es
Priority to AT91112222T priority patent/ATE123360T1/de
Priority to EP91112222A priority patent/EP0525222B1/fr
Priority to BR929202788A priority patent/BR9202788A/pt
Priority to KR1019920012995A priority patent/KR950012479B1/ko
Priority to US07/917,712 priority patent/US5270504A/en
Priority to JP4195049A priority patent/JPH0782898B2/ja
Publication of EP0525222A1 publication Critical patent/EP0525222A1/fr
Application granted granted Critical
Publication of EP0525222B1 publication Critical patent/EP0525222B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)

Claims (9)

  1. Pièce de contact glissant pour densités de courant élevées, à base de cuivre et de carbone avec addition d'un métal ou d'un alliage métallique, dont la température de fusion est sensiblement inférieure à celle du cuivre, caractérisée en ce que l'addition est séparée du cuivre par une couche empêchant son alliage et ne contient pas de parts importantes de plomb ou d'antimoine.
  2. Pièce de contact glissant selon la revendication 1, caractérisée en ce que l'addition est plaquée de manière à ne former aucun alliage avec le cuivre.
  3. Pièce de contact glissant selon la revendication 1, caractérisée en ce que l'addition est mise dans un liant de manière à ne former aucun alliage avec le cuivre.
  4. Pièce de contact glissant selon la revendication 1, caractérisée en ce qu'elle se compose de plusieurs couches, qui sont juxtaposées de manière à entrer ensemble en contact avec un contrecontact, et qui contiennent séparément les unes des autres le cuivre ou bien l'addition.
  5. Pièce de contact glissant selon l'une des revendications 1 à 4, caractérisée en ce que l'addition contient essentiellement de l'étain et/ou du zinc ou leurs alliages.
  6. Pièce de contact selon l'une des revendications 1 à 5, caractérisée en ce qu'elle contient des additions ayant moins de 10% en poids.
  7. Pièce de contact glissant selon la revendication 2 ou 3, caractérisée en ce que le liant, ou bien le revêtement, est un duroplaste, un thermoplaste, du goudron, du brai, du silicate de sodium, un métal et/ou du graphite.
  8. Pièce de contact glissant selon la revendication 7, caractérisée en ce que le liant, ou bien le revêtement, est une résine synthétique, du chrome ou du nickel, ou un alliage de ces métaux.
  9. Démarreur muni de balais de charbon, qui sont constitués sous forme de pièces de contact glissant selon l'une des revendications 1 à 8.
EP91112222A 1991-07-22 1991-07-22 Pièce de contact glissant pour densités de courant élevées Expired - Lifetime EP0525222B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
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.
EP91112222A EP0525222B1 (fr) 1991-07-22 1991-07-22 Pièce de contact glissant pour densités de courant élevées
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 (fr) 1991-07-22 1991-07-22 Pièce de contact glissant pour densités de courant élevées

Publications (2)

Publication Number Publication Date
EP0525222A1 EP0525222A1 (fr) 1993-02-03
EP0525222B1 true EP0525222B1 (fr) 1995-05-31

Family

ID=8206964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112222A Expired - Lifetime EP0525222B1 (fr) 1991-07-22 1991-07-22 Pièce de contact glissant pour densités de courant élevées

Country Status (8)

Country Link
US (1) US5270504A (fr)
EP (1) EP0525222B1 (fr)
JP (1) JPH0782898B2 (fr)
KR (1) KR950012479B1 (fr)
AT (1) ATE123360T1 (fr)
BR (1) BR9202788A (fr)
DE (1) DE59105627D1 (fr)
ES (1) ES2072489T3 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
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
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
JP3929746B2 (ja) * 2001-10-25 2007-06-13 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 (fr) * 2004-04-08 2005-10-20 Carbone Lorraine Applications Electriques Balai sans plomb pour applications haute temperature
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
US11670901B2 (en) * 2018-10-22 2023-06-06 Denso Corporation Electrical contact device and rotating electric machine including the electrical contact device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE154287C (fr) *
DE289101C (fr) *
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 (fr) * 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

Also Published As

Publication number Publication date
EP0525222A1 (fr) 1993-02-03
JPH05226048A (ja) 1993-09-03
JPH0782898B2 (ja) 1995-09-06
ES2072489T3 (es) 1995-07-16
US5270504A (en) 1993-12-14
KR930003469A (ko) 1993-02-24
ATE123360T1 (de) 1995-06-15
BR9202788A (pt) 1993-03-23
DE59105627D1 (de) 1995-07-06
KR950012479B1 (ko) 1995-10-18

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