TW200642233A - Single-phase brushless motor - Google Patents

Single-phase brushless motor

Info

Publication number
TW200642233A
TW200642233A TW095101382A TW95101382A TW200642233A TW 200642233 A TW200642233 A TW 200642233A TW 095101382 A TW095101382 A TW 095101382A TW 95101382 A TW95101382 A TW 95101382A TW 200642233 A TW200642233 A TW 200642233A
Authority
TW
Taiwan
Prior art keywords
salient pole
pole teeth
brushless motor
phase brushless
rotational direction
Prior art date
Application number
TW095101382A
Other languages
Chinese (zh)
Other versions
TWI414130B (en
Inventor
Yuuki Takahashi
Shigenori Inamoto
Jyunichi Kiyohara
Yoshikatsu Kamakura
Original Assignee
Mitsumi Electric 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 Mitsumi Electric Co Ltd filed Critical Mitsumi Electric Co Ltd
Publication of TW200642233A publication Critical patent/TW200642233A/en
Application granted granted Critical
Publication of TWI414130B publication Critical patent/TWI414130B/en

Links

Landscapes

  • Permanent Magnet Type Synchronous Machine (AREA)
  • Brushless Motors (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

This invention relates to a single-phase brushless motor. It suppresses the reduction of the phase difference between the generated torque and the detent torque. It is a cause for inducing vibration and noise, and to reduce the torque ripple. This single-phase brushless motor comprises a stator, and a rotor. The stator 14 is wound with a coil 27 at the salient pole teeth 26 of a stator core 23. The rotor 15 has annular permanent magnets 21 that are arranged in the radial direction, so as to oppose the stator core 14 with air gaps. Distances between the center of the stator core 23 and tip faces 30 of the salient pole teeth 26 are made to differ from one another between both ends in the rotational direction of the salient pole teeth 26. Therefore, the magnitudes of the air gaps have differences between both the ends in the rotational direction of the salient pole teeth 26. The relationship between a minimum air-gap length d1 and a maximum air-gap length d2 between both the ends in the rotational direction of the salient pole teeth 26 satisfies the criterion of d1: d2 from1: 2 to 1: 3.
TW095101382A 2005-05-24 2006-01-13 Single-phase brushless motor TWI414130B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005151493A JP4715305B2 (en) 2005-05-24 2005-05-24 Single phase brushless motor

Publications (2)

Publication Number Publication Date
TW200642233A true TW200642233A (en) 2006-12-01
TWI414130B TWI414130B (en) 2013-11-01

Family

ID=37519799

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095101382A TWI414130B (en) 2005-05-24 2006-01-13 Single-phase brushless motor

Country Status (3)

Country Link
JP (1) JP4715305B2 (en)
CN (1) CN1881746B (en)
TW (1) TWI414130B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI655830B (en) * 2013-09-30 2019-04-01 日商美倍亞股份有限公司 Brushless motor and fan using the motor

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101682246B (en) * 2007-05-25 2013-08-21 三菱电机株式会社 Brushless motor
JP2009207298A (en) * 2008-02-28 2009-09-10 Minebea Motor Manufacturing Corp Stepping motor
CN101789737B (en) * 2010-02-03 2012-02-08 薛晓明 Method and device for inhibiting electromagnetic torque pulsation of brushless direct-current motor
JP2012029540A (en) * 2010-07-28 2012-02-09 Minebea Co Ltd Single-phase brushless motor
CN102195422A (en) * 2011-05-20 2011-09-21 戴珊珊 Multilayer coupling type external rotor permanent magnet brushless motor
CN102368639A (en) * 2011-10-27 2012-03-07 多摩川精密电机（苏州）有限公司 Motor stator core construction
US9800123B2 (en) 2012-03-05 2017-10-24 Zhejiang Yilida Ventilator Co., Ltd. Method for modifying stator tooth top arc of brushless DC motor
CN102629811B (en) * 2012-03-05 2013-01-23 浙江亿利达风机股份有限公司 Brushless direct current motor
JP5997928B2 (en) 2012-05-09 2016-09-28 ミネベア株式会社 Single phase brushless motor
CN102780374B (en) * 2012-07-02 2014-09-10 佛山市威灵电子电器有限公司 Stator punched plate of single-phase direct current brushless motor
DE202016102374U1 (en) 2015-05-08 2016-07-22 Johnson Electric S.A. Single-phase external rotor motor and rotor of it
CN107994739B (en) * 2017-12-15 2020-03-31 西安航天动力测控技术研究所 Braking design method based on cogging torque
JP6756752B2 (en) 2018-01-29 2020-09-16 ミネベアミツミ株式会社 Motor device, motor drive control device, and motor drive method
CN110535318A (en) * 2019-09-10 2019-12-03 刘和生 One kind stirring water installations and non-carbonate stirs water motor with mute
CN111064334B (en) * 2019-12-09 2021-01-29 珠海格力电器股份有限公司 Three-phase permanent magnet synchronous motor and dust collector with same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497419B1 (en) * 1980-12-30 1986-04-18 Papst Motoren Gmbh & Co Kg DIRECT CURRENT MOTOR WITHOUT DOUBLE PULSE MANIFOLD
JPS62114489A (en) * 1985-11-12 1987-05-26 Secoh Giken Inc Semiconductor motor having one phase
JP3333450B2 (en) * 1998-05-15 2002-10-15 日本サーボ株式会社 2-phase DC brushless motor
KR20010057863A (en) * 1999-12-23 2001-07-05 이형도 A brushless motor of single phase
CN100347935C (en) * 2002-07-03 2007-11-07 泰豪科技股份有限公司 Novel air gap structure power generator
JP3693173B2 (en) * 2002-10-16 2005-09-07 日本サーボ株式会社 Single phase brushless DC motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI655830B (en) * 2013-09-30 2019-04-01 日商美倍亞股份有限公司 Brushless motor and fan using the motor

Also Published As

Publication number Publication date
CN1881746A (en) 2006-12-20
JP4715305B2 (en) 2011-07-06
TWI414130B (en) 2013-11-01
JP2006333585A (en) 2006-12-07
CN1881746B (en) 2010-11-17

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