Title:
REACTOR AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2018160546
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a reactor which is compact in size and superior in heat dissipation property.SOLUTION: A reactor according to an embodiment of the present invention comprises: a core having a rectangular form in section; and a coil disposed on an outer periphery of the core and formed by bending a flat square type insulated wire having a conductor and one or more insulator layers covering the conductor in an edgewise direction. A bending radius of the flat square type insulated wire at a position corresponding to each corner of the core is equal to or smaller than 1/2 of an average long-side length of the conductor in a section. The at least one insulator layer includes, as a primary component, a polyimide originating from a polyimide precursor which is a reaction product of an aromatic tetracarboxylic acid dianhydride and an aromatic diamine. The aromatic tetracarboxylic acid dianhydride includes a biphenyl tetracarboxylic dianhydride. In the aromatic tetracarboxylic acid dianhydride, the proportion of the biphenyl tetracarboxylic dianhydride is 60 mol% or more and 75 mol% or less.SELECTED DRAWING: Figure 2
Inventors:
MAEDA SHUHEI
YAMAUCHI MASAAKI
KIMURA KOZO
TAMURA YASUSHI
HOMMA SHIGENORI
YAMADA KOJI
YAMAUCHI MASAAKI
KIMURA KOZO
TAMURA YASUSHI
HOMMA SHIGENORI
YAMADA KOJI
Application Number:
JP2017056689A
Publication Date:
October 11, 2018
Filing Date:
March 22, 2017
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
SUMITOMO ELECTRIC WINTEC INC
TOYOTA MOTOR CORP
SUMITOMO ELECTRIC WINTEC INC
TOYOTA MOTOR CORP
International Classes:
H01F37/00; H01F5/06; H01F27/28; H01F41/04; H01F41/12
Domestic Patent References:
| JP2017041531A | 2017-02-23 | |||
| JP2015135766A | 2015-07-27 | |||
| JP2015228476A | 2015-12-17 | |||
| JP2006288025A | 2006-10-19 | |||
| JPS62100530A | 1987-05-11 | |||
| JP2013101759A | 2013-05-23 | |||
| JP2016151020A | 2016-08-22 | |||
| JP2015130281A | 2015-07-16 |
Foreign References:
| WO2014141322A1 | 2014-09-18 |
Attorney, Agent or Firm:
Hajime Amano
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kenichi Fujinaka
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kenichi Fujinaka