JPS56122111A - Magnetizing device - Google Patents

Magnetizing device

Info

Publication number
JPS56122111A
JPS56122111A JP2639380A JP2639380A JPS56122111A JP S56122111 A JPS56122111 A JP S56122111A JP 2639380 A JP2639380 A JP 2639380A JP 2639380 A JP2639380 A JP 2639380A JP S56122111 A JPS56122111 A JP S56122111A
Authority
JP
Japan
Prior art keywords
yoke
sides
magnetic
cylindrical magnet
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.)
Granted
Application number
JP2639380A
Other languages
Japanese (ja)
Other versions
JPS5815927B2 (en
Inventor
Toshiaki Machino
Original Assignee
Nippon Telegr & Teleph Corp <Ntt>
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 Nippon Telegr & Teleph Corp <Ntt> filed Critical Nippon Telegr & Teleph Corp <Ntt>
Priority to JP2639380A priority Critical patent/JPS5815927B2/ja
Publication of JPS56122111A publication Critical patent/JPS56122111A/en
Publication of JPS5815927B2 publication Critical patent/JPS5815927B2/ja
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00Apparatus or processes for magnetising or demagnetising
    • H01F13/003Methods and devices for magnetising permanent magnets

Abstract

PURPOSE:To obtain a cylindrical magnet having one gentle gradient of a magnetic flux density distribution by bringing the magnetic pole surfaces of a yoke into contact with the peripheral surface at the circumferential center and so magnetizing both sides of the center as to gradually increase the interval from the peripheral surface of a magnet material. CONSTITUTION:When two poles are, for example, magnetized on the outer periphery of a cylindrical magnet material 11, a yoke 14 is brought at the annular part and the pole surface of the inner peripheral end faces of the legs projected in an inner peripheral direction in contact with the outer peripheral surfaces of the material 11 at the circumferential center in such a manner that an interval therebetween is gradually increased toward both sides. A coil 15 is so wound at both sides of the yoke 14 that the magnetic flux passes in the same direction at the same pole surfaces. When such pole surfaces are magnetized, a magnetic fluxe density distribution having a flat part can be prepared. When such a cylindrical magnet is employed for a magnet for generating stationary magnetic field of a motor or a generator, driving force or output of the generator becomes smooth and efficient.
JP2639380A 1980-03-03 1980-03-03 Expired JPS5815927B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2639380A JPS5815927B2 (en) 1980-03-03 1980-03-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2639380A JPS5815927B2 (en) 1980-03-03 1980-03-03

Publications (2)

Publication Number Publication Date
JPS56122111A true JPS56122111A (en) 1981-09-25
JPS5815927B2 JPS5815927B2 (en) 1983-03-28

Family

ID=12192292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2639380A Expired JPS5815927B2 (en) 1980-03-03 1980-03-03

Country Status (1)

Country Link
JP (1) JPS5815927B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3527035A1 (en) * 1985-07-27 1987-02-05 Baumueller Nuernberg Gmbh Method and device for magnetizing permanent-magnet rotors
JPH05276714A (en) * 1992-03-25 1993-10-22 Hitachi Ltd Method and device for magnetizing material for rotor magnet of permanent magnet type synchronous motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3527035A1 (en) * 1985-07-27 1987-02-05 Baumueller Nuernberg Gmbh Method and device for magnetizing permanent-magnet rotors
JPH05276714A (en) * 1992-03-25 1993-10-22 Hitachi Ltd Method and device for magnetizing material for rotor magnet of permanent magnet type synchronous motor

Also Published As

Publication number Publication date
JPS5815927B2 (en) 1983-03-28

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