JPS5463309A - Brushless dc revolving electric machine - Google Patents
Brushless dc revolving electric machineInfo
- Publication number
- JPS5463309A JPS5463309A JP13127177A JP13127177A JPS5463309A JP S5463309 A JPS5463309 A JP S5463309A JP 13127177 A JP13127177 A JP 13127177A JP 13127177 A JP13127177 A JP 13127177A JP S5463309 A JPS5463309 A JP S5463309A
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- magnet pieces
- holes
- see
- adjacent edges
- 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
- Brushless Motors (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
PURPOSE:To improve the rising characteristics by reducing the moment of inertia with reduction of the weight of the rotor. CONSTITUTION:On the periphery of a cylindrical yoke 16 having see-through holes 16a to 16d are disposed permanent magnet pieces 171 to 174 having an inner surface of substantially the same radius of curvature as that of the periphery of the yoke such that their adjacent edges corespoding to the positions of the see-through holes. These magnet pieces have staircase-like edge portions 171a to 174b such that adjacent edges approach each other as one goes toward the yoke. A thermoplastic material is poured through the yoke cylinder and see-through holes into recesses 181 to 184 formed between adjacent edges of the magnet pieces, and the magnet pieces and yoke are secured to one another with the shrinking force produced at the time of the solidification of the material. With this construction, the wieght is small compared to the prior-art rotor practically entirely consisting of the permanent magnets. In addition, the moment of inertia is low, the magnetization is simple, and dynamic balance can be simply obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13127177A JPS5463309A (en) | 1977-10-31 | 1977-10-31 | Brushless dc revolving electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13127177A JPS5463309A (en) | 1977-10-31 | 1977-10-31 | Brushless dc revolving electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5463309A true JPS5463309A (en) | 1979-05-22 |
Family
ID=15054018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13127177A Pending JPS5463309A (en) | 1977-10-31 | 1977-10-31 | Brushless dc revolving electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5463309A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734170U (en) * | 1980-07-30 | 1982-02-23 | ||
| JPS57111084U (en) * | 1980-12-26 | 1982-07-09 | ||
| JPS5985076U (en) * | 1982-11-26 | 1984-06-08 | 富士電気化学株式会社 | Resin molded rotor |
| JPH0680350U (en) * | 1992-10-06 | 1994-11-08 | 愛知電機株式会社 | Rotor with permanent magnet |
-
1977
- 1977-10-31 JP JP13127177A patent/JPS5463309A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734170U (en) * | 1980-07-30 | 1982-02-23 | ||
| JPS57111084U (en) * | 1980-12-26 | 1982-07-09 | ||
| JPS622944Y2 (en) * | 1980-12-26 | 1987-01-23 | ||
| JPS5985076U (en) * | 1982-11-26 | 1984-06-08 | 富士電気化学株式会社 | Resin molded rotor |
| JPH0680350U (en) * | 1992-10-06 | 1994-11-08 | 愛知電機株式会社 | Rotor with permanent magnet |
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