JPS5775410A - Manufacture of multipolar magnet - Google Patents

Manufacture of multipolar magnet

Info

Publication number
JPS5775410A
JPS5775410A JP55150985A JP15098580A JPS5775410A JP S5775410 A JPS5775410 A JP S5775410A JP 55150985 A JP55150985 A JP 55150985A JP 15098580 A JP15098580 A JP 15098580A JP S5775410 A JPS5775410 A JP S5775410A
Authority
JP
Japan
Prior art keywords
magnet
pole
contact
manufacture
multipolar 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.)
Pending
Application number
JP55150985A
Other languages
Japanese (ja)
Inventor
Sukeyoshi Tanaka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55150985A priority Critical patent/JPS5775410A/en
Publication of JPS5775410A publication Critical patent/JPS5775410A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE:To facilitate manufacture of a multipolar magnet being made small in size and having plural number of poles and moreover having high precision by a method wherein the magnet is made to have structure being made magnetic members having plural radial magnetic pole pieces to come in contact with the magnetic pole faces of a permanent magnet and to be fixed with each other. CONSTITUTION:The magnetic members 4a, 4b having radially plural pole pieces 3 at the circumferential edge parts are prepared. The member 4a is made to come in contact with the N pole face of the permanent magnet 2 coaxially, and the member 4b is made to come in contact with the S pole face coaxially. A shaft 6 is inserted with pressure in apertures 5, 1 in this condition to form the three in one body, and manufacture of the multipolar magnet is completed. In the multipolar magnet like this, because the magnetic pole pieces 3 of the member 4a coming in contact with the N pole face is magnetized automatically to N pole, and the magnetic pole pieces 3 of the member 4b coming in contact with the S pole face is magnetized automatically to S pole, the multipolar magnet having 12 pairs of N, S poles can be formed finally. Accordingly arranged of a multipole magnetizing device and a coil for magnetization, etc., is unnecessitated, and manufacture of the magnet being small in size can be attained readily.
JP55150985A 1980-10-28 1980-10-28 Manufacture of multipolar magnet Pending JPS5775410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55150985A JPS5775410A (en) 1980-10-28 1980-10-28 Manufacture of multipolar magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55150985A JPS5775410A (en) 1980-10-28 1980-10-28 Manufacture of multipolar magnet

Publications (1)

Publication Number Publication Date
JPS5775410A true JPS5775410A (en) 1982-05-12

Family

ID=15508759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55150985A Pending JPS5775410A (en) 1980-10-28 1980-10-28 Manufacture of multipolar magnet

Country Status (1)

Country Link
JP (1) JPS5775410A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01194843A (en) * 1988-01-29 1989-08-04 Tokyo Electric Co Ltd Motor rotor
JP2007330025A (en) * 2006-06-07 2007-12-20 Daikin Ind Ltd Motor
JP2012178954A (en) * 2011-02-28 2012-09-13 Sanyo Electric Co Ltd Hub dynamo for bicycle
JP2015148636A (en) * 2013-07-08 2015-08-20 Thk株式会社 magnetic encoder and sensor device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01194843A (en) * 1988-01-29 1989-08-04 Tokyo Electric Co Ltd Motor rotor
JP2007330025A (en) * 2006-06-07 2007-12-20 Daikin Ind Ltd Motor
JP2012178954A (en) * 2011-02-28 2012-09-13 Sanyo Electric Co Ltd Hub dynamo for bicycle
JP2015148636A (en) * 2013-07-08 2015-08-20 Thk株式会社 magnetic encoder and sensor device

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