JPS5775410A - Manufacture of multipolar magnet - Google Patents
Manufacture of multipolar magnetInfo
- 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
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)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Transmission And Conversion Of Sensor Element Output (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.
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)
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 |
-
1980
- 1980-10-28 JP JP55150985A patent/JPS5775410A/en active Pending
Cited By (4)
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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