JPS6431404A - Rotary transformer and manufacture thereof - Google Patents

Rotary transformer and manufacture thereof

Info

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
Application number
JP62188038A
Other languages
Japanese (ja)
Inventor
Yoshihiro Fujimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62188038A priority Critical patent/JPS6431404A/en
Publication of JPS6431404A publication Critical patent/JPS6431404A/en
Pending legal-status Critical Current

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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.
JP62188038A 1987-07-28 1987-07-28 Rotary transformer and manufacture thereof Pending JPS6431404A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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