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JPS56153961A - Rotary electric machine - Google Patents

Rotary electric machine

Info

Publication number
JPS56153961A
JPS56153961A JP5685680A JP5685680A JPS56153961A JP S56153961 A JPS56153961 A JP S56153961A JP 5685680 A JP5685680 A JP 5685680A JP 5685680 A JP5685680 A JP 5685680A JP S56153961 A JPS56153961 A JP S56153961A
Authority
JP
Japan
Prior art keywords
poles
auxiliary
main
pitch
electric machine
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
JP5685680A
Other languages
Japanese (ja)
Other versions
JPS6223536B2 (en
Inventor
Makoto Goto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5685680A priority Critical patent/JPS56153961A/en
Publication of JPS56153961A publication Critical patent/JPS56153961A/en
Publication of JPS6223536B2 publication Critical patent/JPS6223536B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Brushless Motors (AREA)

Abstract

PURPOSE:To reduce the cogging force in a rotary electric machine and to equalize the electromagnetic torque of the machine by forming auxiliary grooves on the main and the auxiliary salient poles of an armature core and providing skews on the respective magnet poles. CONSTITUTION:An annular magnet 2 mounted on a rotor 1 has N poles, S poles and nonmagnetic poles, each of which has equal angular width. An armature core 3 has main salient poles 4a1, 4a2, 4b1, 4b2 of 60 deg. of effective pitch and auxiliary salient poles 5a-5d of 30 deg. of effective pitch, and auxiliary grooves 8a-8p each having a pitch (15 deg. interval) of 1/4 of the effective pitch of the main salient pole are provided at the part which is effectively confronted with the main and the auxiliary salient poles. Skews each having a skew angle corresponding to the pitch of the auxiliary groove are formed at the respective poles of the magnet 2. Thus, it can increase the cogging force reducing effect in a rotary electric machine.
JP5685680A 1980-04-28 1980-04-28 Rotary electric machine Granted JPS56153961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5685680A JPS56153961A (en) 1980-04-28 1980-04-28 Rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5685680A JPS56153961A (en) 1980-04-28 1980-04-28 Rotary electric machine

Publications (2)

Publication Number Publication Date
JPS56153961A true JPS56153961A (en) 1981-11-28
JPS6223536B2 JPS6223536B2 (en) 1987-05-23

Family

ID=13039047

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5685680A Granted JPS56153961A (en) 1980-04-28 1980-04-28 Rotary electric machine

Country Status (1)

Country Link
JP (1) JPS56153961A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130587U (en) * 1981-02-10 1982-08-14
JPS5925562A (en) * 1982-07-28 1984-02-09 Matsushita Electric Works Ltd Brushless motor
JPS62100154A (en) * 1985-10-24 1987-05-09 Nippon Fueroo Furuideikusu Kk motor
JPH02206348A (en) * 1989-01-31 1990-08-16 Koyo Seiko Co Ltd Motor
JPH03106869U (en) * 1990-02-16 1991-11-05
US5086245A (en) * 1990-03-06 1992-02-04 S1 Montevideo Technology, Inc. Brushless DC motor slotted tooth lamination
JPH0476173U (en) * 1990-11-09 1992-07-02
FR2809547A1 (en) * 2000-05-25 2001-11-30 Mitsubishi Electric Corp PERMANENT MAGNET MOTOR
US6853105B2 (en) 2000-05-25 2005-02-08 Mitsubishi Denki Kabushiki Kaisha Permanent magnet motor
JP2005151753A (en) * 2003-11-18 2005-06-09 Canon Inc Linear motor
EP2378627A1 (en) 2010-04-13 2011-10-19 ebm-papst Mulfingen GmbH & Co. KG Electric motor
CN107925279A (en) * 2015-09-18 2018-04-17 爱信艾达株式会社 Electric rotating machine and stator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01135058U (en) * 1987-10-03 1989-09-14

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524002A (en) * 1975-06-25 1977-01-12 Singer Co Rotor for electric machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524002A (en) * 1975-06-25 1977-01-12 Singer Co Rotor for electric machine

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130587U (en) * 1981-02-10 1982-08-14
JPS5925562A (en) * 1982-07-28 1984-02-09 Matsushita Electric Works Ltd Brushless motor
JPS62100154A (en) * 1985-10-24 1987-05-09 Nippon Fueroo Furuideikusu Kk motor
JPH02206348A (en) * 1989-01-31 1990-08-16 Koyo Seiko Co Ltd Motor
JPH03106869U (en) * 1990-02-16 1991-11-05
US5086245A (en) * 1990-03-06 1992-02-04 S1 Montevideo Technology, Inc. Brushless DC motor slotted tooth lamination
JPH0476173U (en) * 1990-11-09 1992-07-02
FR2809547A1 (en) * 2000-05-25 2001-11-30 Mitsubishi Electric Corp PERMANENT MAGNET MOTOR
US6853105B2 (en) 2000-05-25 2005-02-08 Mitsubishi Denki Kabushiki Kaisha Permanent magnet motor
US6876116B2 (en) 2000-05-25 2005-04-05 Mitsubishi Denki Kabushiki Kaisha Permanent magnet motor
JP2005151753A (en) * 2003-11-18 2005-06-09 Canon Inc Linear motor
EP2378627A1 (en) 2010-04-13 2011-10-19 ebm-papst Mulfingen GmbH & Co. KG Electric motor
US8664826B2 (en) 2010-04-13 2014-03-04 Ebm-Papst Mulfingen Gmbh & Co. Kg Permanent magnet excited electric motor with reduced cogging torque
CN107925279A (en) * 2015-09-18 2018-04-17 爱信艾达株式会社 Electric rotating machine and stator
EP3312973A4 (en) * 2015-09-18 2018-09-12 Aisin AW Co., Ltd. Rotating electric machine and stator
US10958122B2 (en) 2015-09-18 2021-03-23 Aisin Aw Co., Ltd. Rotating electrical machine and stator

Also Published As

Publication number Publication date
JPS6223536B2 (en) 1987-05-23

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