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JPS56117567A - Magnet rotor - Google Patents

Magnet rotor

Info

Publication number
JPS56117567A
JPS56117567A JP1913680A JP1913680A JPS56117567A JP S56117567 A JPS56117567 A JP S56117567A JP 1913680 A JP1913680 A JP 1913680A JP 1913680 A JP1913680 A JP 1913680A JP S56117567 A JPS56117567 A JP S56117567A
Authority
JP
Japan
Prior art keywords
metal
magnet
melting point
ferrite magnet
low melting
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
JP1913680A
Other languages
Japanese (ja)
Inventor
Masayuki Shizuka
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 JP1913680A priority Critical patent/JPS56117567A/en
Publication of JPS56117567A publication Critical patent/JPS56117567A/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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733—Annular magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE:To obtain a magnet rotor having excellent chemical resistance and accuracy of revolution by a method wherein metal having the low melting point is casted between an inner diameter section of a ferrite magnet and a shaft, and adhesives having low viscosity is flowed into a minute clearance formed between the metal having the low melting point and the ferrite magnet. CONSTITUTION:Metal 4 having the low melting point such as while metal is casted between an inner diameter section of a ferrite magnet 1 and a shaft 3 inserted between a concave section 2 and the inner diameter section, and cooled naturally. Adhesives 5 having excellent chemical resistance and low viscosity is flowed into a minute clearance formed between the metal 4 having the low melting point and the ferrite magnet 1 due to the difference of the coefficients of linear expansion, and the metal and the magnet are glued. Thus, a magnet rotor having superior chemical resistance and accuracy of revolution can be obtained because the ferrite magnet 1 and the shaft 3 are fastened positively.
JP1913680A 1980-02-20 1980-02-20 Magnet rotor Pending JPS56117567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1913680A JPS56117567A (en) 1980-02-20 1980-02-20 Magnet rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1913680A JPS56117567A (en) 1980-02-20 1980-02-20 Magnet rotor

Publications (1)

Publication Number Publication Date
JPS56117567A true JPS56117567A (en) 1981-09-16

Family

ID=11991037

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1913680A Pending JPS56117567A (en) 1980-02-20 1980-02-20 Magnet rotor

Country Status (1)

Country Link
JP (1) JPS56117567A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5298826A (en) * 1991-11-21 1994-03-29 Mabuchi Motor Co., Ltd. Rotor for rotary electrical machinery
US5734216A (en) * 1994-11-29 1998-03-31 Nissan Motor Co. Ltd. Magnet rotor for synchronous motor
US7049723B2 (en) * 2001-01-15 2006-05-23 Minebea Co., Ltd. DC motor
US8004141B2 (en) 2005-04-29 2011-08-23 Sntech Inc. Two-phase brushless DC motor
US8033007B2 (en) 2007-05-11 2011-10-11 Sntech, Inc. Method of making rotor of brushless motor
US8080907B2 (en) * 2007-10-25 2011-12-20 Young-Chun Jeung Rotor of brushless (BL) motor
US20120062050A1 (en) * 2010-09-13 2012-03-15 Alex Horng Rotor for Motor
US8299661B2 (en) * 2007-05-11 2012-10-30 Sntech Inc. Rotor of brushless motor
US8410652B2 (en) * 2011-04-13 2013-04-02 Headline Electric Co., Ltd. Motor assembly using polar anisotropic ring magnet
JP2017017877A (en) * 2015-07-01 2017-01-19 ミネベア株式会社 Rotor and motor
JP2017123711A (en) * 2016-01-05 2017-07-13 ミネベアミツミ株式会社 Rotor and motor using the rotor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5298826A (en) * 1991-11-21 1994-03-29 Mabuchi Motor Co., Ltd. Rotor for rotary electrical machinery
US5734216A (en) * 1994-11-29 1998-03-31 Nissan Motor Co. Ltd. Magnet rotor for synchronous motor
US7049723B2 (en) * 2001-01-15 2006-05-23 Minebea Co., Ltd. DC motor
US8004141B2 (en) 2005-04-29 2011-08-23 Sntech Inc. Two-phase brushless DC motor
US8033007B2 (en) 2007-05-11 2011-10-11 Sntech, Inc. Method of making rotor of brushless motor
US8299661B2 (en) * 2007-05-11 2012-10-30 Sntech Inc. Rotor of brushless motor
US8080907B2 (en) * 2007-10-25 2011-12-20 Young-Chun Jeung Rotor of brushless (BL) motor
US20120062050A1 (en) * 2010-09-13 2012-03-15 Alex Horng Rotor for Motor
US8436497B2 (en) * 2010-09-13 2013-05-07 Sunonwealth Electric Machine Industry Co., Ltd. Rotor for motor
US8410652B2 (en) * 2011-04-13 2013-04-02 Headline Electric Co., Ltd. Motor assembly using polar anisotropic ring magnet
JP2017017877A (en) * 2015-07-01 2017-01-19 ミネベア株式会社 Rotor and motor
JP2017123711A (en) * 2016-01-05 2017-07-13 ミネベアミツミ株式会社 Rotor and motor using the rotor

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