Title:
QUADRILATERAL COIL HAVING HIGH CERAMIC CONTENT MODIFIED PAI INSULATING VARNISH COATED THEREON AS MULTILAYER STRUCTURE, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2017/048070
Kind Code:
A1
Abstract:
The present invention relates to a quadrilateral coil having coated thereon as a multilayer structure, a modified PAI insulating varnish having a high ceramic content, and to a method for manufacturing same. The present invention relates to a quadrilateral coil composed of a multilayer structure comprising: a primer layer including a modified polyamideimide; a main insulating layer formed on the surface of the primer layer as a mixture of a polyamideimide, which includes a relatively large number of amide groups or a urethane group, and a ceramic in a sol state; and a top coating layer, which is formed on the main insulating layer and includes polydimethylsiloxane-polyamideimide, and to a method for manufacturing the same. According to the present invention, an insulating varnish forming each layer has a high ceramic content, and in spite of being a quadrilateral coil, the present invention has the effect of satisfying properties such as adhesiveness, crack resistance, high thermal conductivity, high lubricity, wear resistance, and high electrical insulation (voltage resistance and discharge durability), even when subjected to bending/twisting.
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Inventors:
KANG DONG-PIL (KR)
PARK JIN-HEE (KR)
LEE DAE-HO (KR)
HAN SE-WON (KR)
PARK JIN-HEE (KR)
LEE DAE-HO (KR)
HAN SE-WON (KR)
Application Number:
PCT/KR2016/010366
Publication Date:
March 23, 2017
Filing Date:
September 13, 2016
Export Citation:
Assignee:
KERI KOREA ELECTROTECHNOLOGY RES INST (KR)
International Classes:
H01F41/02; C09D179/08; H01F41/04
Foreign References:
| KR20130141348A | 2013-12-26 | |||
| KR20090111951A | 2009-10-28 | |||
| JP2007217496A | 2007-08-30 | |||
| JPH0931198A | 1997-02-04 | |||
| US20120241191A1 | 2012-09-27 |
Attorney, Agent or Firm:
PUKYUNG INTERNATIONAL PATENT AND LAW FIRM (KR)
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