JPS54105712A - Ac commutator motor - Google Patents

Ac commutator motor

Info

Publication number
JPS54105712A
JPS54105712A JP1227578A JP1227578A JPS54105712A JP S54105712 A JPS54105712 A JP S54105712A JP 1227578 A JP1227578 A JP 1227578A JP 1227578 A JP1227578 A JP 1227578A JP S54105712 A JPS54105712 A JP S54105712A
Authority
JP
Japan
Prior art keywords
gap
rotor
efficiency
commutator motor
iron loss
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.)
Pending
Application number
JP1227578A
Other languages
Japanese (ja)
Inventor
Kunio Miyashita
Yasuyuki Sugiura
Hiroshi Okuda
Nobuyuki Yamashita
Shoji Mogi
Masao Hata
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
Priority to JP1227578A priority Critical patent/JPS54105712A/en
Priority to DE19792904638 priority patent/DE2904638A1/en
Priority to GB7904358A priority patent/GB2014373B/en
Publication of JPS54105712A publication Critical patent/JPS54105712A/en
Pending 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

PURPOSE: To improve the efficiency by increasing the gap length between the stator core and the rotor core gradually from the central portion toward the pole end thereby uniforming the flux distribution and minimizing the rotor iron loss.
CONSTITUTION: In high speed, small capacity AC commutator motor, the gap length between the magnetic pole 11 of stator core 1 and the rotor core 3 is increased gradually from g1 to g2 such that the rotor diameter is approx. 45mm, central gap g1, the gap at the end of magnetic pole 11 is g2, average gap g0=(g1+ g2)×1/2=0.55∼0.75, and g=g1-g2=0.25∼0.45. Consequently the unbalance of flux distribution due to the armature reaction can be uniformed and the rotor iron loss is minimized resulting in the improvement of the efficiency.
COPYRIGHT: (C)1979,JPO&Japio
JP1227578A 1978-02-08 1978-02-08 Ac commutator motor Pending JPS54105712A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1227578A JPS54105712A (en) 1978-02-08 1978-02-08 Ac commutator motor
DE19792904638 DE2904638A1 (en) 1978-02-08 1979-02-07 AC COMMUTATOR MOTOR
GB7904358A GB2014373B (en) 1978-02-08 1979-02-07 -c commutator motor

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
JPS54105712A true JPS54105712A (en) 1979-08-20

Family

ID=11800806

Family Applications (1)

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

Country Status (3)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004242471A (en) * 2003-02-07 2004-08-26 Matsushita Electric Ind Co Ltd Commutator motor
US9023456B2 (en) 2011-03-18 2015-05-05 Bilfinger Water Technologies, Inc. Profiled wire screen for process flow and other applications

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890015482A (en) * 1988-03-16 1989-10-30 이종섭 Magnetic Excitation Induction Motor
GB2260860B (en) * 1991-10-22 1996-01-17 Standards Inst Singapore Tooth shape for electrical machine parts
GB2312332A (en) * 1996-04-16 1997-10-22 Tai Her Yang Magnetic circuit structure for an electric machine
FI113422B (en) * 1996-05-30 2004-04-15 Irri Oy Electric motor and procedure in an electric motor and the use of the same
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

Citations (1)

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

Patent Citations (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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004242471A (en) * 2003-02-07 2004-08-26 Matsushita Electric Ind Co Ltd Commutator motor
US9023456B2 (en) 2011-03-18 2015-05-05 Bilfinger Water Technologies, Inc. Profiled wire screen for process flow and other applications

Also Published As

Publication number Publication date
GB2014373B (en) 1982-06-03
GB2014373A (en) 1979-08-22
DE2904638A1 (en) 1979-08-09

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