EP0930675A3 - Impregnated carbon brush for conducting electrical current - Google Patents
Impregnated carbon brush for conducting electrical current Download PDFInfo
- 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- Withdrawn
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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752864 | 1997-11-28 | ||
DE19752864A DE19752864A1 (en) | 1997-11-28 | 1997-11-28 | Brush for transporting electrical current |
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)
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)
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 |
-
1997
- 1997-11-28 DE DE19752864A patent/DE19752864A1/en not_active Withdrawn
-
1998
- 1998-11-06 EP EP98121048A patent/EP0930675A3/en not_active Withdrawn
- 1998-11-12 CZ CZ983674A patent/CZ367498A3/en unknown
- 1998-11-27 PL PL98329963A patent/PL329963A1/en unknown
Patent Citations (5)
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 |
---|---|
PL329963A1 (en) | 1999-06-07 |
DE19752864A1 (en) | 1999-06-02 |
EP0930675A2 (en) | 1999-07-21 |
CZ367498A3 (en) | 1999-07-14 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20010110 |
|
AKX | Designation fees paid |
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|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 20020511 |