JPS5568857A - Small-sized motor - Google Patents
Small-sized motorInfo
- Publication number
- JPS5568857A JPS5568857A JP14108378A JP14108378A JPS5568857A JP S5568857 A JPS5568857 A JP S5568857A JP 14108378 A JP14108378 A JP 14108378A JP 14108378 A JP14108378 A JP 14108378A JP S5568857 A JPS5568857 A JP S5568857A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- magnetizing
- motor
- rotor
- aeolotropy
- 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
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
PURPOSE: To enlarge output torque while miniaturize the device, by using a magnet manufactured by alternately magnetizing N and S at a rare earth magnet, which has aeolotropy in the radial direction, as a rotor magnet.
CONSTITUTION: This motor is provided with a cylindrical rotor magnet 3 mounted to a shaft 1 through a rotor spacer 2, stator coils 9, 9' wound on a bobbin 8 and stator yokes 6, 6' and 7, 7' constituted in four phases. The rotor magnet 3 is formed by a rare earth Co magnet that has aeolotropy in the radial direction while a magnetizing magnetic field is magnetized at 10% in value not more than 15kOe and energy product is not less than 100k gauss Oe, and the outer circumference is magnetized so that N poles 11 and S poles 12 alternately be built up in parallel with the shaft 1. Thus, a magnetizing device can be miniaturized while output torque increases, and this motor can be miniaturized.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14108378A JPS5568857A (en) | 1978-11-17 | 1978-11-17 | Small-sized motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14108378A JPS5568857A (en) | 1978-11-17 | 1978-11-17 | Small-sized motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5568857A true JPS5568857A (en) | 1980-05-23 |
Family
ID=15283803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14108378A Pending JPS5568857A (en) | 1978-11-17 | 1978-11-17 | Small-sized motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5568857A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4695419A (en) * | 1983-09-28 | 1987-09-22 | Tokuzo Inariba | Manufacture of a miniature electric motor |
-
1978
- 1978-11-17 JP JP14108378A patent/JPS5568857A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4695419A (en) * | 1983-09-28 | 1987-09-22 | Tokuzo Inariba | Manufacture of a miniature electric motor |
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