JPS55156309A - Magnetization of annular magnet - Google Patents

Magnetization of annular magnet

Info

Publication number
JPS55156309A
JPS55156309A JP6470379A JP6470379A JPS55156309A JP S55156309 A JPS55156309 A JP S55156309A JP 6470379 A JP6470379 A JP 6470379A JP 6470379 A JP6470379 A JP 6470379A JP S55156309 A JPS55156309 A JP S55156309A
Authority
JP
Japan
Prior art keywords
magnetization
terminals
mold
magnet
central line
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
JP6470379A
Other languages
Japanese (ja)
Other versions
JPS6156857B2 (en
Inventor
Hiroshi Komeno
Hajime Kotani
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 JP6470379A priority Critical patent/JPS55156309A/en
Publication of JPS55156309A publication Critical patent/JPS55156309A/en
Publication of JPS6156857B2 publication Critical patent/JPS6156857B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets

Abstract

PURPOSE:To improve a wave shape of magnetization and rotation characteristics by magnetizing an anisotropic annular magnet arranged in a diametric direction using a metal mold. CONSTITUTION:The terminals 1a and 1b of a metal mold are set in the opposite direction, and one end of each of the terminals is connected to the wall 2 of the mold, whereas the terminals 1a and 1b are bisymmetrical about a central line XY. The material of the mold is made of magnetic so iron. An anisotropic magnet 4 in the shape of a ring which touches the inner sides of the terminals 1a and 1b and inserted into a shield case 3 and arranged in a diametric direction. The arranged direction of the magnet is so made that it conforms to the central line XY, and bipolar magnetization is given by inserting a magnetizing yoke 5 wound in the annular magent while applying electric current. In this case, a magnetic line produced by the application of the current flows in the direction from A to B, and magnetization is given along the direction, thus making it possible to prevent the turbulence of the wave shape of magnetization and improve rotation characteristics by using the aforementioned mold.
JP6470379A 1979-05-24 1979-05-24 Magnetization of annular magnet Granted JPS55156309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6470379A JPS55156309A (en) 1979-05-24 1979-05-24 Magnetization of annular magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6470379A JPS55156309A (en) 1979-05-24 1979-05-24 Magnetization of annular magnet

Publications (2)

Publication Number Publication Date
JPS55156309A true JPS55156309A (en) 1980-12-05
JPS6156857B2 JPS6156857B2 (en) 1986-12-04

Family

ID=13265760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6470379A Granted JPS55156309A (en) 1979-05-24 1979-05-24 Magnetization of annular magnet

Country Status (1)

Country Link
JP (1) JPS55156309A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972703A (en) * 1982-10-20 1984-04-24 Tohoku Metal Ind Ltd Molding device of ferrite slurry in magnetic field
JPS59182921U (en) * 1983-05-24 1984-12-06 セイコーエプソン株式会社 Mold for magnetic field injection molding
DE3527035A1 (en) * 1985-07-27 1987-02-05 Baumueller Nuernberg Gmbh Method and device for magnetizing permanent-magnet rotors
JPS62216305A (en) * 1986-03-18 1987-09-22 Taiyo Yuden Co Ltd Magnetizing method
CN106710784A (en) * 2016-12-30 2017-05-24 上海三环磁性材料有限公司 Radial two-pole magnetizing fixture
CN112436687A (en) * 2020-12-03 2021-03-02 江苏苏美达五金工具有限公司 Magnetizing device and radial magnetizing method for arc-shaped magnetic shoe of permanent magnet motor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5972703A (en) * 1982-10-20 1984-04-24 Tohoku Metal Ind Ltd Molding device of ferrite slurry in magnetic field
JPS59182921U (en) * 1983-05-24 1984-12-06 セイコーエプソン株式会社 Mold for magnetic field injection molding
DE3527035A1 (en) * 1985-07-27 1987-02-05 Baumueller Nuernberg Gmbh Method and device for magnetizing permanent-magnet rotors
JPS62216305A (en) * 1986-03-18 1987-09-22 Taiyo Yuden Co Ltd Magnetizing method
JPH0439210B2 (en) * 1986-03-18 1992-06-26
CN106710784A (en) * 2016-12-30 2017-05-24 上海三环磁性材料有限公司 Radial two-pole magnetizing fixture
CN112436687A (en) * 2020-12-03 2021-03-02 江苏苏美达五金工具有限公司 Magnetizing device and radial magnetizing method for arc-shaped magnetic shoe of permanent magnet motor
CN112436687B (en) * 2020-12-03 2022-04-22 江苏苏美达五金工具有限公司 Magnetizing device and radial magnetizing method for arc-shaped magnetic shoe of permanent magnet motor
WO2022116127A1 (en) * 2020-12-03 2022-06-09 江苏苏美达五金工具有限公司 Magnetizing device for arc tile-shaped magnets of permanent magnet motor and radial magnetizing method

Also Published As

Publication number Publication date
JPS6156857B2 (en) 1986-12-04

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