JPS5549955A - Method of manufacturing rotor core of rotary electric machine - Google Patents
Method of manufacturing rotor core of rotary electric machineInfo
- Publication number
- JPS5549955A JPS5549955A JP12304778A JP12304778A JPS5549955A JP S5549955 A JPS5549955 A JP S5549955A JP 12304778 A JP12304778 A JP 12304778A JP 12304778 A JP12304778 A JP 12304778A JP S5549955 A JPS5549955 A JP S5549955A
- Authority
- JP
- Japan
- Prior art keywords
- core
- notches
- core sheets
- punched
- shaft
- 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.)
- Granted
Links
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
PURPOSE: To raise the yield of a material and improve the tightly fitting property to a shaft, by punching two core sheets out of one strip, winding the core sheets to form a helical core, compressing the core in the axial direction and expanding punched notches of the tooth parts of the core sheets to form magnetic pole parts.
CONSTITUTION: Two core sheets are punched out of one strip 1 so that comb-like teeth 2c are opposedly and alternately juxtaposed. At the same time, notches 1a and tooth tip notches 1b are also punched. The core sheets are helically wound in such a direction that the notches 1a are closed. The helically wound core is compressed in the radial direction by a press tool 7 having a projection 7a so that a shaft hole 8 is adjusted to an optional size. The bottoms of slots 2b are fixed by welding or the like. The tooth tip notches 1b are expanded so that T-shaped magnetic pole parts 9 are provided. As a result, under this constitution, the yield of the material is raised and the core can be combined with a shaft of optional diameter.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12304778A JPS5549955A (en) | 1978-10-04 | 1978-10-04 | Method of manufacturing rotor core of rotary electric machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12304778A JPS5549955A (en) | 1978-10-04 | 1978-10-04 | Method of manufacturing rotor core of rotary electric machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5549955A true JPS5549955A (en) | 1980-04-11 |
JPS6133340B2 JPS6133340B2 (en) | 1986-08-01 |
Family
ID=14850885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12304778A Granted JPS5549955A (en) | 1978-10-04 | 1978-10-04 | Method of manufacturing rotor core of rotary electric machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5549955A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7009322B2 (en) * | 2003-04-11 | 2006-03-07 | Denso Corporation | Rotor of rotary electric machine and method of manufacturing the rotor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0541474Y2 (en) * | 1986-03-31 | 1993-10-20 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234301A (en) * | 1975-07-03 | 1977-03-16 | Sev Marchal | Method of making bent member for electromagnetic device* and electriccmachine rotor and stator |
-
1978
- 1978-10-04 JP JP12304778A patent/JPS5549955A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234301A (en) * | 1975-07-03 | 1977-03-16 | Sev Marchal | Method of making bent member for electromagnetic device* and electriccmachine rotor and stator |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7009322B2 (en) * | 2003-04-11 | 2006-03-07 | Denso Corporation | Rotor of rotary electric machine and method of manufacturing the rotor |
US7284314B2 (en) | 2003-04-11 | 2007-10-23 | Denso Corporation | Method of manufacturing rotor of rotary electric machine |
Also Published As
Publication number | Publication date |
---|---|
JPS6133340B2 (en) | 1986-08-01 |
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