JPS6434157A - Fan driving electric motor - Google Patents
Fan driving electric motorInfo
- Publication number
- JPS6434157A JPS6434157A JP18836387A JP18836387A JPS6434157A JP S6434157 A JPS6434157 A JP S6434157A JP 18836387 A JP18836387 A JP 18836387A JP 18836387 A JP18836387 A JP 18836387A JP S6434157 A JPS6434157 A JP S6434157A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnets
- rotor
- electric motor
- driving electric
- fan driving
- 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
Abstract
PURPOSE:To reduce the fluctuation of a rotary speed by providing a plurality of permanent magnets to be arranged in a casing of a rotor while composing these permanent magnets of magnet material of small specific gravity. CONSTITUTION:A fan driving electric motor has a rotor 4 and a stator 5 formed by providing a coil 40 for generating a rotating magnetic field. A plurality of permanent magnets 20 are arranged in a casing 15 of the rotor 4. These permanent magnets 20 are formed of a magnet material of ferrite or the like with small specific gravity, being magnetized in the radial direction further in a manner wherein surfaces next to each other are mutually different in the internal peripheral surface making the magnet face to the stator 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18836387A JPS6434157A (en) | 1987-07-27 | 1987-07-27 | Fan driving electric motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18836387A JPS6434157A (en) | 1987-07-27 | 1987-07-27 | Fan driving electric motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6434157A true JPS6434157A (en) | 1989-02-03 |
Family
ID=16222312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18836387A Pending JPS6434157A (en) | 1987-07-27 | 1987-07-27 | Fan driving electric motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6434157A (en) |
-
1987
- 1987-07-27 JP JP18836387A patent/JPS6434157A/en active Pending
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