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Title:
COIL FOR ROTARY ELECTRIC DEVICE, METHOD FOR PRODUCING COIL FOR ROTARY ELECTRIC DEVICE, DRY MICA TAPE, AND INSULATING ARTICLE
Document Type and Number:
WIPO Patent Application WO/2018/179437
Kind Code:
A1
Abstract:
This method for producing a coil for a rotary electric device comprises: a step for forming a laminate of a mica tape, the laminate covering at least a portion of the outer circumference of a coil conductor; a step for impregnating the laminate with a curable resin composition; and a step for curing the curable resin composition and forming an insulating layer. The mica tape includes: a backing layer including a glass cloth, and a binder material that includes boron nitride and a binder resin; and a mica layer that is provided on a surface of the backing layer and includes mica. At least a portion of gaps in the weave of the glass cloth is filled with the binder material, to obtain a dry mica tape in which the total volume of the binder material is 0.5 to 2 times the total volume of the gaps in the weave of the glass cloth.

Inventors:
SONG, Shihui (9-2, Marunouchi 1-chome, Chiyoda-k, Tokyo 06, 〒1006606, JP)
TAKEZAWA, Yoshitaka (9-2, Marunouchi 1-chome, Chiyoda-k, Tokyo 06, 〒1006606, JP)
KATAGI, Hideyuki (9-2, Marunouchi 1-chome, Chiyoda-k, Tokyo 06, 〒1006606, JP)
Application Number:
JP2017/013845
Publication Date:
October 04, 2018
Filing Date:
March 31, 2017
Export Citation:
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Assignee:
HITACHI CHEMICAL COMPANY, LTD. (9-2 Marunouchi 1-chome, Chiyoda-ku Tokyo, 06, 〒1006606, JP)
International Classes:
H02K3/30; H01B17/60; H01F5/06; H01F41/12
Domestic Patent References:
WO2015053374A12015-04-16
WO2013073496A12013-05-23
Foreign References:
JP2012244861A2012-12-10
JP2002093257A2002-03-29
JP2008027819A2008-02-07
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (3-17, Shinjuku 4-chome Shinjuku-k, Tokyo 22, 〒1600022, JP)
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