JPS6431404A - Rotary transformer and manufacture thereof - Google Patents
Rotary transformer and manufacture thereofInfo
- Publication number
- JPS6431404A JPS6431404A JP62188038A JP18803887A JPS6431404A JP S6431404 A JPS6431404 A JP S6431404A JP 62188038 A JP62188038 A JP 62188038A JP 18803887 A JP18803887 A JP 18803887A JP S6431404 A JPS6431404 A JP S6431404A
- Authority
- JP
- Japan
- Prior art keywords
- cores
- coils
- rotor
- stator
- injection molding
- 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
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
PURPOSE:To lessen the cost of a manufacturing process and decrease the price of the whole device, by forming rotor and stator cores through injection molding of synthetic resin that contains Mn-Zn and by shaping coils and a short ring integrally with the cores when they are formed, thereby arranging them on the surfaces of the two cores facing each other. CONSTITUTION:A rotary transformer 22 is equipped with rotor and stator cores 23 and 24 which are formed through synthetic resin injection molding that contains Mn-Zn. External and internal circumference coils 25 and 26 located at the rotor side are arranged at the rotor core 23 and then, the external and internal circumference coils 27 and 28 located at the stator side are arranged at the stator core 24 and further, short rings 29 are arranged between the coils 27 and 28. As respective coils 25, 26, 27, and 28 are placed at the inside of a metal mold when the cores are formed and resin injection molding is performed on the metal mold, respective coils hold positions at the surfaces of the cores and also are fixed by resin. Then they are manufactured very easily and are composed at the low cost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188038A JPS6431404A (en) | 1987-07-28 | 1987-07-28 | Rotary transformer and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62188038A JPS6431404A (en) | 1987-07-28 | 1987-07-28 | Rotary transformer and manufacture thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6431404A true JPS6431404A (en) | 1989-02-01 |
Family
ID=16216583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62188038A Pending JPS6431404A (en) | 1987-07-28 | 1987-07-28 | Rotary transformer and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6431404A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0395404A2 (en) | 1989-04-27 | 1990-10-31 | Canon Kabushiki Kaisha | Image processing apparatus |
EP0587142A2 (en) * | 1992-09-09 | 1994-03-16 | Matsushita Electric Industrial Co., Ltd. | A rotary transformer |
-
1987
- 1987-07-28 JP JP62188038A patent/JPS6431404A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0395404A2 (en) | 1989-04-27 | 1990-10-31 | Canon Kabushiki Kaisha | Image processing apparatus |
EP0587142A2 (en) * | 1992-09-09 | 1994-03-16 | Matsushita Electric Industrial Co., Ltd. | A rotary transformer |
EP0587142A3 (en) * | 1992-09-09 | 1994-03-30 | Matsushita Electric Industrial Co., Ltd. | A rotary transformer |
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