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GB2014373A - A-C commutator motor - Google Patents

A-C commutator motor

Info

Publication number
GB2014373A
GB2014373A GB7904358A GB7904358A GB2014373A GB 2014373 A GB2014373 A GB 2014373A GB 7904358 A GB7904358 A GB 7904358A GB 7904358 A GB7904358 A GB 7904358A GB 2014373 A GB2014373 A GB 2014373A
Authority
GB
United Kingdom
Prior art keywords
gap
commutator motor
stator
pole piece
rotor
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.)
Granted
Application number
GB7904358A
Other versions
GB2014373B (en
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB2014373A publication Critical patent/GB2014373A/en
Application granted granted Critical
Publication of GB2014373B publication Critical patent/GB2014373B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

An a-c commutator motor has a stator with magnetic pole pieces (11) separated by a gap from the rotor core (3). In order that the magnetic flux distribution in the rotor is made more uniform so as to decrease losses, the width of this gap increases from the circumferentially central portion of the stator pole piece (gap g1) to the circumferential entrance end of the pole piece (gap g2). <IMAGE>
GB7904358A 1978-02-08 1979-02-07 -c commutator motor Expired GB2014373B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1227578A JPS54105712A (en) 1978-02-08 1978-02-08 Ac commutator motor

Publications (2)

Publication Number Publication Date
GB2014373A true GB2014373A (en) 1979-08-22
GB2014373B GB2014373B (en) 1982-06-03

Family

ID=11800806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7904358A Expired GB2014373B (en) 1978-02-08 1979-02-07 -c commutator motor

Country Status (3)

Country Link
JP (1) JPS54105712A (en)
DE (1) DE2904638A1 (en)
GB (1) GB2014373B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217116A (en) * 1988-03-16 1989-10-18 Lee Jong Sub Magnetizing type induction motors
GB2260860A (en) * 1991-10-22 1993-04-28 Standards Inst Singapore Tooth shape for rotor or stator of an electrical machine
GB2312335A (en) * 1996-04-16 1997-10-22 Yang Tai Her Magnetic circuit structure for an electric machine
WO1997045942A1 (en) * 1996-05-30 1997-12-04 Rotatek Finland Oy An electric motor and a method in an electric motor and use thereof
FR2809240A1 (en) * 2000-05-17 2001-11-23 Minarro Bernot Ind Diffusion C Homo-polar electrical machine and fabrication method, uses stampings from a flat metallic sheet, shaped teeth to support conductors
GB2370424A (en) * 2000-12-22 2002-06-26 Aea Technology Plc Varying air gap alternator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4269707B2 (en) * 2003-02-07 2009-05-27 パナソニック株式会社 Commutator motor
US9023456B2 (en) 2011-03-18 2015-05-05 Bilfinger Water Technologies, Inc. Profiled wire screen for process flow and other applications

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4518262Y1 (en) * 1966-11-14 1970-07-25

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217116A (en) * 1988-03-16 1989-10-18 Lee Jong Sub Magnetizing type induction motors
GB2217116B (en) * 1988-03-16 1992-01-29 Lee Jong Sub Magnetizing type induction motor
GB2260860A (en) * 1991-10-22 1993-04-28 Standards Inst Singapore Tooth shape for rotor or stator of an electrical machine
GB2260860B (en) * 1991-10-22 1996-01-17 Standards Inst Singapore Tooth shape for electrical machine parts
GB2312335A (en) * 1996-04-16 1997-10-22 Yang Tai Her Magnetic circuit structure for an electric machine
GB2312335B (en) * 1996-04-16 2001-02-28 Yang Tai Her An arrangement of magnetic circuit structures
WO1997045942A1 (en) * 1996-05-30 1997-12-04 Rotatek Finland Oy An electric motor and a method in an electric motor and use thereof
FR2809240A1 (en) * 2000-05-17 2001-11-23 Minarro Bernot Ind Diffusion C Homo-polar electrical machine and fabrication method, uses stampings from a flat metallic sheet, shaped teeth to support conductors
GB2370424A (en) * 2000-12-22 2002-06-26 Aea Technology Plc Varying air gap alternator

Also Published As

Publication number Publication date
GB2014373B (en) 1982-06-03
JPS54105712A (en) 1979-08-20
DE2904638A1 (en) 1979-08-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950207