JPH0373230B2 - - Google Patents

Info

Publication number
JPH0373230B2
JPH0373230B2 JP56191881A JP19188181A JPH0373230B2 JP H0373230 B2 JPH0373230 B2 JP H0373230B2 JP 56191881 A JP56191881 A JP 56191881A JP 19188181 A JP19188181 A JP 19188181A JP H0373230 B2 JPH0373230 B2 JP H0373230B2
Authority
JP
Japan
Prior art keywords
pole piece
edge
armature
motor
permanent magnet
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.)
Expired - Lifetime
Application number
JP56191881A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57173365A (en
Inventor
Daburyu Shiibaato Deiru
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.)
Pacific Scientific Co
Original Assignee
Pacific Scientific Co
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 Pacific Scientific Co filed Critical Pacific Scientific Co
Publication of JPS57173365A publication Critical patent/JPS57173365A/ja
Publication of JPH0373230B2 publication Critical patent/JPH0373230B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)
JP56191881A 1980-12-01 1981-12-01 Permanent magnet dc motor Granted JPS57173365A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/211,887 US4341969A (en) 1980-12-01 1980-12-01 Direct current motor with improved pole piece that reduces cogging

Publications (2)

Publication Number Publication Date
JPS57173365A JPS57173365A (en) 1982-10-25
JPH0373230B2 true JPH0373230B2 (en:Method) 1991-11-21

Family

ID=22788698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56191881A Granted JPS57173365A (en) 1980-12-01 1981-12-01 Permanent magnet dc motor

Country Status (6)

Country Link
US (1) US4341969A (en:Method)
EP (1) EP0053485B1 (en:Method)
JP (1) JPS57173365A (en:Method)
AU (1) AU554972B2 (en:Method)
CA (1) CA1169906A (en:Method)
DE (1) DE3176775D1 (en:Method)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797592A (en) * 1982-06-17 1989-01-10 Kollmorgen Technologies Corporation Dynamo electric machine with upwardly shifted ripple frequency
US4593216A (en) * 1982-09-24 1986-06-03 Ibm Business Machines Corporation Rotary stepping motor having improved construction
US5047682A (en) * 1986-01-13 1991-09-10 Papst-Motoren Gmbh & Co. Kg Permanent magnet excited electric motor
EP0409661B1 (en) * 1989-07-21 1995-01-11 Mitsubishi Chemical Corporation Motor
IT1261598B (it) 1993-09-30 1996-05-23 Gate Spa Motore elettrico a magneti permanenti con coppia di riluttanza ridotta
US5753991A (en) * 1994-12-02 1998-05-19 Hydro-Quebec Multiphase brushless AC electric machine
EP0748027B1 (en) * 1995-06-07 2006-09-06 General Electric Company Dynamoelectric machine and rotor construction thereof
US5783890A (en) * 1995-06-26 1998-07-21 Cleveland Motion Controls, Inc. Imprinted geometric magnetic anticog permanent magnet motor
US6166463A (en) * 1998-11-25 2000-12-26 Woodward, Jr.; Richard C. Axial force electrical machines
US6204584B1 (en) 2000-01-18 2001-03-20 Cleveland Motion Controls, Inc. Low cogging torque brushless motor rotor
US6713922B2 (en) * 2000-12-29 2004-03-30 Otis Elevator Company Integrally skewed permanent magnet for use in an electric machine
JP4740480B2 (ja) * 2001-06-29 2011-08-03 アスモ株式会社 回転電機
US6858960B1 (en) 2002-09-17 2005-02-22 Dana Corporation Low cogging permanent magnet motor
JP3839428B2 (ja) * 2003-06-10 2006-11-01 アスモ株式会社 直流機
JP2006086319A (ja) * 2004-09-16 2006-03-30 Mitsubishi Electric Corp リング型焼結磁石
JP4940872B2 (ja) * 2006-10-03 2012-05-30 株式会社ジェイテクト 電動モータのステータ、電動モータ、及び電動ポンプユニット
DE102006061628A1 (de) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Elektrische Maschine
NL2003978C2 (en) 2008-12-19 2010-09-20 Monsanto Invest Nv Method of breeding cysdv-resistant cucumber plants.
CN107134865B (zh) * 2017-05-15 2019-05-07 广东工业大学 一种确定永磁体削角的方法及装置
CN115800567B (zh) * 2022-11-23 2025-11-11 浙江联宜电机有限公司 直流有刷电机的磁钢结构及直流有刷电机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE436789C (de) * 1926-11-09 Siemens Schuckertwerke G M B H Verfahren zur Herstellung von Einschnitten an den Polhoernern ungeblaetterter Magnetpole elektrischer Maschinen
DE104021C (en:Method) *
GB439439A (en) * 1934-09-24 1935-12-06 English Electric Co Ltd Improvements in dynamo electric machines
GB1142591A (en) * 1966-05-26 1969-02-12 Gen Motors Ltd Permanent magnet electric motors
FR2033663A5 (en:Method) * 1969-02-25 1970-12-04 Jammet Jean
US3663851A (en) * 1970-09-21 1972-05-16 Electro Craft Corp D.c. motor
JPS51113102U (en:Method) * 1975-03-11 1976-09-13
DE2558958A1 (de) * 1975-12-29 1977-07-07 Siemens Ag Gleichstrommaschine

Also Published As

Publication number Publication date
JPS57173365A (en) 1982-10-25
DE3176775D1 (en) 1988-07-07
AU7785281A (en) 1982-06-10
US4341969A (en) 1982-07-27
EP0053485A1 (en) 1982-06-09
CA1169906A (en) 1984-06-26
EP0053485B1 (en) 1988-06-01
AU554972B2 (en) 1986-09-11

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