EP0930675A3 - Impregnated carbon brush for conducting electrical current - Google Patents

Impregnated carbon brush for conducting electrical current Download PDF

Info

Publication number
EP0930675A3
EP0930675A3 EP98121048A EP98121048A EP0930675A3 EP 0930675 A3 EP0930675 A3 EP 0930675A3 EP 98121048 A EP98121048 A EP 98121048A EP 98121048 A EP98121048 A EP 98121048A EP 0930675 A3 EP0930675 A3 EP 0930675A3
Authority
EP
European Patent Office
Prior art keywords
electrical current
brushes
carbon brush
impregnated carbon
conducting electrical
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.)
Withdrawn
Application number
EP98121048A
Other languages
German (de)
French (fr)
Other versions
EP0930675A2 (en
Inventor
Ingolf Dipl.-Ing. Hahn
Günter Moog
Johannes Stam
Wolfgang Dr. Dipl.-Ing. Vesper
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.)
SGL Carbon SE
Original Assignee
SGL Carbon SE
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
Application filed by SGL Carbon SE filed Critical SGL Carbon SE
Publication of EP0930675A2 publication Critical patent/EP0930675A2/en
Publication of EP0930675A3 publication Critical patent/EP0930675A3/en
Withdrawn legal-status Critical Current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
    • H01R39/22—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof incorporating lubricating or polishing ingredient
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

Zur Verbesserung der Laufeigenschaften von Bürsten zum Übertragen elektrischen Stromes für hochbelastete Maschinen und zur Schonung der Schleifringe und Kommutatoren solcher Maschinen wird eine aus Kohlenstoff oder aus einem Kohlenstoffüllstoff und einer Bindermatrix aus Kunstharz bestehende Bürste vorgeschlagen, die mindestens eine anorganische Substanz enthält, die ihre Kristallstruktur im Bereich unterhalb ihres Schmelz-, Sublimations- oder Zersetzungsbereichs in Abhängigkeit von der Temperatur ändert. Eine bevorzugte Substanz dieser Art ist Ammoniumnitrat. Die Bürsten können zusätzlich mit Wachsen, als Gleitmittel wirkenden Polymeren, Ölen oder Fetten imprägniert sein.To improve the running properties of brushes for Transmission of electrical current for heavily loaded machines and to protect the slip rings and commutators Machines become one made of carbon or a carbon filler and a binder matrix made of synthetic resin existing brush suggested that at least one contains inorganic substance that its crystal structure in Range below their melting, sublimation or decomposition range changes depending on the temperature. A preferred substance of this type is ammonium nitrate. The Brushes can also use waxes as a lubricant impregnated polymers, oils or fats.

EP98121048A 1997-11-28 1998-11-06 Impregnated carbon brush for conducting electrical current Withdrawn EP0930675A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19752864A DE19752864A1 (en) 1997-11-28 1997-11-28 Brush for transporting electrical current
DE19752864 1997-11-28

Publications (2)

Publication Number Publication Date
EP0930675A2 EP0930675A2 (en) 1999-07-21
EP0930675A3 true EP0930675A3 (en) 2001-02-21

Family

ID=7850150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121048A Withdrawn EP0930675A3 (en) 1997-11-28 1998-11-06 Impregnated carbon brush for conducting electrical current

Country Status (4)

Country Link
EP (1) EP0930675A3 (en)
CZ (1) CZ367498A3 (en)
DE (1) DE19752864A1 (en)
PL (1) PL329963A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072914B (en) * 1960-01-07 Schunk &. Ebe G.m.b.H., Heuchelheim über Gießen Process for introducing pure metals in extremely fine distribution into carbon bodies
US3580824A (en) * 1968-12-31 1971-05-25 Hooker Chemical Corp Impregnated graphite
US3594455A (en) * 1969-07-02 1971-07-20 Boris Vasilievich Polovoi Methods for manufacturing carbon and/or graphite materials
US3756911A (en) * 1970-12-28 1973-09-04 Nippon Carbon Co Ltd Carbon metal composite slide members and method of making same
DE4204680C1 (en) * 1992-02-17 1993-04-29 Technisch Wissenschaftliche Gesellschaft Thiede Und Partner Mbh, O-1530 Teltow, De Mfg. method for commutators and brushes for electric motors and machines - impregnating basic material with micro particles of powdered or granulated graphite and plastic mixture to reduce friction of brushes on commutator ring

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3616045A (en) * 1969-02-17 1971-10-26 Tatabanyai Aluminiumkoho Process for increasing the strength and electrical conductivity of graphite or carbon articles and/or for bonding such articles to each other to ceramic articles or to metals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072914B (en) * 1960-01-07 Schunk &. Ebe G.m.b.H., Heuchelheim über Gießen Process for introducing pure metals in extremely fine distribution into carbon bodies
US3580824A (en) * 1968-12-31 1971-05-25 Hooker Chemical Corp Impregnated graphite
US3594455A (en) * 1969-07-02 1971-07-20 Boris Vasilievich Polovoi Methods for manufacturing carbon and/or graphite materials
US3756911A (en) * 1970-12-28 1973-09-04 Nippon Carbon Co Ltd Carbon metal composite slide members and method of making same
DE4204680C1 (en) * 1992-02-17 1993-04-29 Technisch Wissenschaftliche Gesellschaft Thiede Und Partner Mbh, O-1530 Teltow, De Mfg. method for commutators and brushes for electric motors and machines - impregnating basic material with micro particles of powdered or granulated graphite and plastic mixture to reduce friction of brushes on commutator ring

Also Published As

Publication number Publication date
CZ367498A3 (en) 1999-07-14
DE19752864A1 (en) 1999-06-02
EP0930675A2 (en) 1999-07-21
PL329963A1 (en) 1999-06-07

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