Title:
ELECTROMAGNETIC COIL AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2016105688
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide: an electromagnetic coil having an insulative coated body of which the thermal conductivity is ensured by suppressing the loss of inorganic particles owing to outward runoff; and a method for manufacturing such an electromagnetic coil.SOLUTION: An electromagnetic coil 1 comprises: an insulative coated body 6 arranged by alternately laminating, on a coil conductor 2, a mica layer 3 including mica and a reinforcement layer 4 including a fiber-reinforced material, inorganic particles and a thermosetting resin. In the electromagnetic coil, the fiber-reinforced material has openings of which the length of one side is 50 μm or larger, and a thickness within a range of 10-40 μm. The inorganic particles are composed of secondary cohering particles formed by agglomeration of hexagonal crystal boron nitride primary particles; the average particle diameter of the secondary cohering particles falls within a range of 0.5×t4 to 1.2×t4 to a thickness t4 of the reinforcement layer.SELECTED DRAWING: Figure 1
Inventors:
MABUCHI TAKAHIRO
YAMAMOTO SHIGEYUKI
TSUKIJI MAKOTO
KUBO KAZUKI
YAMAMOTO SHIGEYUKI
TSUKIJI MAKOTO
KUBO KAZUKI
Application Number:
JP2015240099A
Publication Date:
June 09, 2016
Filing Date:
December 09, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02K3/30; H01F5/06
Domestic Patent References:
| JP2010505027A | 2010-02-18 | |||
| JP2011098882A | 2011-05-19 | |||
| JP2005006389A | 2005-01-06 | |||
| JP2008027819A | 2008-02-07 | |||
| JPS63110929A | 1988-05-16 |
Foreign References:
| WO2007037342A1 | 2007-04-05 |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino