JPS648838A - Core for rotor - Google Patents
Core for rotorInfo
- Publication number
- JPS648838A JPS648838A JP16281687A JP16281687A JPS648838A JP S648838 A JPS648838 A JP S648838A JP 16281687 A JP16281687 A JP 16281687A JP 16281687 A JP16281687 A JP 16281687A JP S648838 A JPS648838 A JP S648838A
- Authority
- JP
- Japan
- Prior art keywords
- slots
- divided
- widths
- level
- reduced
- 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
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
PURPOSE:To lower the level of electromagnetic sound, by dividing slots, and by setting the divided slots to be the combined ones of the widths of tooth sections increased or reduced in order. CONSTITUTION:The slots of 2N units (N is an integer.) are divided into 2K (K is a positive integer, and N>K). In case of a figure, the number 2N of the slots 1 is set to be 24, and the number 2K of the divided ones is set to be 4, and so the number of the slots 1 per division is turned into 6. Tooth sections 3 between the slots 1 are arranged so that the widths 3 may be reduced clockwise in the manner of 3a 3b 3c 3d 3e 3f. As a result, the level of electromagnetic sound generated from a motor driven by the power source of a distorted waveform can be lowered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16281687A JPS648838A (en) | 1987-06-30 | 1987-06-30 | Core for rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16281687A JPS648838A (en) | 1987-06-30 | 1987-06-30 | Core for rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648838A true JPS648838A (en) | 1989-01-12 |
Family
ID=15761772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16281687A Pending JPS648838A (en) | 1987-06-30 | 1987-06-30 | Core for rotor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648838A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04195197A (en) * | 1990-11-28 | 1992-07-15 | Casio Comput Co Ltd | Electronic musical instrument containing pedal effect adding device |
-
1987
- 1987-06-30 JP JP16281687A patent/JPS648838A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04195197A (en) * | 1990-11-28 | 1992-07-15 | Casio Comput Co Ltd | Electronic musical instrument containing pedal effect adding device |
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