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GB2005483A - Dynamoelectric machine brush systems - Google Patents

Dynamoelectric machine brush systems

Info

Publication number
GB2005483A
GB2005483A GB7836989A GB7836989A GB2005483A GB 2005483 A GB2005483 A GB 2005483A GB 7836989 A GB7836989 A GB 7836989A GB 7836989 A GB7836989 A GB 7836989A GB 2005483 A GB2005483 A GB 2005483A
Authority
GB
United Kingdom
Prior art keywords
contact members
low
dynamoelectric machine
machine brush
systems
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Withdrawn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
GB7836989A
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 claimed from US05/928,116 external-priority patent/US4241271A/en
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB2005483A publication Critical patent/GB2005483A/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Withdrawn legal-status Critical Current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
    • H01R39/46—Auxiliary means for improving current transfer, or for reducing or preventing sparking or arcing
    • H01R39/48—Auxiliary means for improving current transfer, or for reducing or preventing sparking or arcing by air blast; by surrounding collector with non-conducting liquid or gas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/003—Structural associations of slip-rings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/28—Cooling of commutators, slip-rings or brushes e.g. by ventilating

Landscapes

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

Abstract

Current collecting systems selectively using compatible materials in different applications for the moving and stationary contact members operate in an inert gas atmosphere, such as carbon dioxide containing a vaporous organic substance (in Chamber 40) to achieve operation at higher temperatures, velocities and current densities than is possible with conventional systems. Low friction and low wear rates are in part achieved by operating the contact members in a low temperature environment, cooling fluid passing through pipes 50 to the brush holder 42. The brushes 44 may be graphitic type with a dispersed metal of preferably Copper or Silver. The organic vapour is preferably at least one of a paraffinic hydrocarbon, an alcohol, a keytone, and aldehide (each having from 7 to 16 carbon atoms) and decalin. Results of experiments with different metals, vapours etc are disclosed. <IMAGE>
GB7836989A 1977-09-30 1978-09-15 Dynamoelectric machine brush systems Withdrawn GB2005483A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83818177A 1977-09-30 1977-09-30
US05/928,116 US4241271A (en) 1978-07-26 1978-07-26 Solid brush current collection system

Publications (1)

Publication Number Publication Date
GB2005483A true GB2005483A (en) 1979-04-19

Family

ID=27126005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7836989A Withdrawn GB2005483A (en) 1977-09-30 1978-09-15 Dynamoelectric machine brush systems

Country Status (10)

Country Link
JP (1) JPS5457604A (en)
CA (1) CA1123881A (en)
CH (1) CH642788A5 (en)
DE (1) DE2841242A1 (en)
ES (1) ES473791A1 (en)
FR (1) FR2404938A1 (en)
GB (1) GB2005483A (en)
IT (1) IT1104085B (en)
NL (1) NL7809770A (en)
SE (1) SE7810235L (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039994A1 (en) * 1980-05-12 1981-11-18 Litton Systems, Inc. A high voltage slip ring assembly
EP0209617A1 (en) * 1985-07-25 1987-01-28 Matsushita Electric Industrial Co., Ltd. Small-size motor
EP0767527A1 (en) * 1995-10-07 1997-04-09 Mabuchi Motor Co., Ltd Miniature electric motor

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277708A (en) * 1979-06-25 1981-07-07 Westinghouse Electric Corp. Environment and brushes for high-current rotating electrical machinery
JPS59213261A (en) * 1983-05-17 1984-12-03 Matsushita Electric Ind Co Ltd Small-sized motor
JPS59213260A (en) * 1983-05-17 1984-12-03 Matsushita Electric Ind Co Ltd small motor
JPH02285958A (en) * 1989-04-24 1990-11-26 Sumitomo Heavy Ind Ltd Superconductive motor having water-cooled current collecting brush
JP2017070175A (en) * 2015-10-02 2017-04-06 マブチモーター株式会社 Dc motor, door lock device for vehicle, and cleaning method
DE102019100729B4 (en) * 2019-01-14 2022-09-29 Bayerische Motoren Werke Aktiengesellschaft Passively cooled brush module for a slip ring system of a current-excited electrical machine, electrical machine and motor vehicle
FR3095902B1 (en) * 2019-05-09 2021-06-04 Euro Techniques Ind Electrical rotating joint device configured to equip a fluid exploitation installation, in particular on an offshore platform

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB325287A (en) * 1928-11-17 1930-02-17 Morgan Crucible Co Improvements in or relating to brushes for use in dynamoelectric machines, electric motors and the like, and to processes for the manufacture thereof
JPS4213046Y1 (en) * 1964-05-13 1967-07-25
GB1274755A (en) * 1969-03-25 1972-05-17 Int Research & Dev Co Ltd Improvements in and relating to dynamo-electric machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039994A1 (en) * 1980-05-12 1981-11-18 Litton Systems, Inc. A high voltage slip ring assembly
EP0209617A1 (en) * 1985-07-25 1987-01-28 Matsushita Electric Industrial Co., Ltd. Small-size motor
EP0767527A1 (en) * 1995-10-07 1997-04-09 Mabuchi Motor Co., Ltd Miniature electric motor

Also Published As

Publication number Publication date
JPS5457604A (en) 1979-05-09
ES473791A1 (en) 1979-10-16
IT7841648A0 (en) 1978-09-29
FR2404938A1 (en) 1979-04-27
NL7809770A (en) 1979-04-03
DE2841242A1 (en) 1979-04-12
CH642788A5 (en) 1984-04-30
FR2404938B1 (en) 1983-10-28
CA1123881A (en) 1982-05-18
IT1104085B (en) 1985-10-14
SE7810235L (en) 1979-05-17

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)