JPH02228227A - Coil of small-sized motor - Google Patents

Coil of small-sized motor

Info

Publication number
JPH02228227A
JPH02228227A JP4535689A JP4535689A JPH02228227A JP H02228227 A JPH02228227 A JP H02228227A JP 4535689 A JP4535689 A JP 4535689A JP 4535689 A JP4535689 A JP 4535689A JP H02228227 A JPH02228227 A JP H02228227A
Authority
JP
Japan
Prior art keywords
coil
copper wire
resin
coil bobbin
insulating varnish
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
JP4535689A
Other languages
Japanese (ja)
Inventor
Naoji Sato
Original Assignee
Japan Servo 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 Japan Servo Co Ltd filed Critical Japan Servo Co Ltd
Priority to JP4535689A priority Critical patent/JPH02228227A/en
Publication of JPH02228227A publication Critical patent/JPH02228227A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent corrosive gas from invading the copper wire by forming a coil with a fine copper wire wound around a coil bobbin, mould resin of the same kind as the coil bobbin, insulating varnish vacuum-impregnated into the copper wire section, etc.
CONSTITUTION: As a coil bobbin 1, for instance a coil bobbin made of polyethylene resin is used. The resin of the same kind is used as mould resin 4. A coil 5 thus moulded is put into a vacuum container, where the coil 5 is vacuum- impregnated with insulating varnish under this condition. After that, it is dried out at the temperature of about 125°C or so. In the coil 5 insulating varnish osmoses into the crack formed to the mould resin 4 and into the cavity formed between a copper wire 2 and the mould resin 4. The invasion of corrosive gas, such as ammonia, chlorine, etc., into the copper wire 2 section can thereby be prevented.
COPYRIGHT: (C)1990,JPO&Japio
JP4535689A 1989-02-28 1989-02-28 Coil of small-sized motor Pending JPH02228227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4535689A JPH02228227A (en) 1989-02-28 1989-02-28 Coil of small-sized motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4535689A JPH02228227A (en) 1989-02-28 1989-02-28 Coil of small-sized motor

Publications (1)

Publication Number Publication Date
JPH02228227A true JPH02228227A (en) 1990-09-11

Family

ID=12717004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4535689A Pending JPH02228227A (en) 1989-02-28 1989-02-28 Coil of small-sized motor

Country Status (1)

Country Link
JP (1) JPH02228227A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010081744A (en) * 2008-09-26 2010-04-08 Hitachi Koki Co Ltd Power tool
JP2010220345A (en) * 2009-03-16 2010-09-30 Yoshinori Kimura Forming method of resin layer in constituent of electric motor or generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010081744A (en) * 2008-09-26 2010-04-08 Hitachi Koki Co Ltd Power tool
JP2010220345A (en) * 2009-03-16 2010-09-30 Yoshinori Kimura Forming method of resin layer in constituent of electric motor or generator

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