JPS54139012A - Method of fabricating rotor for step motor - Google Patents
Method of fabricating rotor for step motorInfo
- Publication number
- JPS54139012A JPS54139012A JP4691378A JP4691378A JPS54139012A JP S54139012 A JPS54139012 A JP S54139012A JP 4691378 A JP4691378 A JP 4691378A JP 4691378 A JP4691378 A JP 4691378A JP S54139012 A JPS54139012 A JP S54139012A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- rotor
- mold
- step motor
- rotor core
- 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)
Abstract
PURPOSE: To provide a rotor of high performance for a step motor by inserting a rotor magnet perforated at the center into a mold, and charging synthetic resin into the mold to directly couple the magnet with the rotor core to thereby reduce the size of the magnet.
CONSTITUTION: A rotor magnet 5 performated at the center is inserted into a mold of upper die 6 and lower die 7. Synthetic resin is poured from an inlet 9 of the mold to thus mold a rotor core 10 having metal portions 10a. The magnet 5 is elevationally grasped by the metal portions 10a and large-diameter portions 10a to be coupled with the rotor core. Accordingly, since the magnet 5 is directly coupled with the rotor core, it can reduce the diameter of the center hole of the magnet 5 to thereby reduce the inertial moment of the rotor so as to obtain a high performance step motor improving mechanical and electrical conversion efficiency.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4691378A JPS54139012A (en) | 1978-04-20 | 1978-04-20 | Method of fabricating rotor for step motor |
GB7913932A GB2025151B (en) | 1978-04-20 | 1979-04-20 | Rotor assembly and method of manufacture therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4691378A JPS54139012A (en) | 1978-04-20 | 1978-04-20 | Method of fabricating rotor for step motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54139012A true JPS54139012A (en) | 1979-10-29 |
Family
ID=12760574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4691378A Pending JPS54139012A (en) | 1978-04-20 | 1978-04-20 | Method of fabricating rotor for step motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54139012A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61192668U (en) * | 1985-05-23 | 1986-11-29 |
-
1978
- 1978-04-20 JP JP4691378A patent/JPS54139012A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61192668U (en) * | 1985-05-23 | 1986-11-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5214811A (en) | Magnetic pole holder magneto power generator and its manufacturing method | |
JPS5239109A (en) | Small sized motor | |
JPS54139012A (en) | Method of fabricating rotor for step motor | |
JPS54122805A (en) | Manufacture of cage-shaped rotor | |
JPS5485302A (en) | Lead-out structure of miniature motor | |
JPS5523707A (en) | Manufacture of stator for rotary electric machine | |
JPS54136613A (en) | Manufacture of rotor for converter | |
JPS5549956A (en) | Method of making core for motor | |
JPS5321715A (en) | Electric motor | |
JPS5423905A (en) | Method for manufacturing stator core | |
JPS5238105A (en) | Manufacturing method for basket type rotor | |
JPS5534857A (en) | Rotor for outer-rotor magnet generator and its manufacturing method | |
JPS5583436A (en) | Method of fixing motor stator coil end | |
JPS53132701A (en) | Method of and apparatus for manufacturing dipole motor | |
JPS5268909A (en) | Rotor construction of motor for electronic watch | |
JPS5271605A (en) | Shaping rotor coils for electric motor | |
JPS55161552A (en) | Production of hollow composite metal cast ingot | |
JPS5393301A (en) | Resin molded small sized motor | |
JPS5385318A (en) | Electric motor compressor | |
JPS54136610A (en) | Manufacture of rotor for converter | |
JPS5351412A (en) | Manufacturing for rotor of core-less motor | |
JPS5513645A (en) | Electric motor | |
JPS53146589A (en) | Superconduction device | |
JPS554923A (en) | Semi-conductor device | |
JPS57129152A (en) | Removing method for skew of motor core |