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Title:
MULTIPLE CYLINDRICAL COIL
Document Type and Number:
Japanese Patent JP2013222894
Kind Code:
A
Abstract:

To easily manufacture multiple cylindrical coils while miniaturizing the multiple cylindrical coils.

Multiple cylindrical coils include: first cylindrical coil units 130 around which first cylindrical coils 131 are wound like concentric cylinders to be located in a plurality of layers; and second cylindrical coil units 140 which are located so as to be aligned with the first cylindrical coil units 130 in axis directions of the first cylindrical coils 131, and around which second cylindrical coils 141 to be electrically and serially connected with the first cylindrical coils 131 are wound like concentric cylinders with the first cylindrical coils 131 to be located in a plurality of layers. In addition, the multiple cylindrical coils include: annular insulation paper 120 in planar view located between the first cylindrical coil units 130 and the second cylindrical coil units 140; and a connection part 154 which mutually connects the first cylindrical coil 131 located innermost and the second cylindrical coil 141 located innermost, or the first cylindrical coil 131 located outermost and the second cylindrical coil 141 located outermost.


Inventors:
NISHIMURA TAKESHI
SUGIMOTO NAOYA
Application Number:
JP2012094855A
Publication Date:
October 28, 2013
Filing Date:
April 18, 2012
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01F27/32; H01F27/28
Domestic Patent References:
JPH04263406A1992-09-18
JPS2916722Y1
JPS63204606A1988-08-24
JPH01293507A1989-11-27
JPS5347917A1978-04-28
Foreign References:
GB552874A1943-04-28
Attorney, Agent or Firm:
Fukami patent office