Title:
REACTOR
Document Type and Number:
WIPO Patent Application WO/2011/089941
Kind Code:
A1
Abstract:
Provided is a reactor including: a coil; and a core which includes an inner core portion disposed in the coil, and an outer core portion configured to cover an outer side of the coil. A saturation flux density of the inner core portion of the reactor is higher than a saturation flux density of the outer core portion, and a magnetic permeability of the outer core portion is lower than a magnetic permeability of the inner core portion. The reactor is formed of a mixture of a magnetic material and a resin, and a case of the reactor includes a heat transfer unit disposed in an inner wall surface of the case to function as a heat dissipation structure for at least one of the coil and the inner core portion. Even when the outer side of the coil is covered a core material, the reactor may effectively diffuse heat generated in the reactor.
Inventors:
INABA KAZUHIRO (JP)
NOMURA YASUSHI (JP)
YAMAMOTO SHINICHIRO (JP)
YAMADA YUKINORI (JP)
KITAJIMA MIKI (JP)
KITAJIMA KENJI (JP)
NOMURA YASUSHI (JP)
YAMAMOTO SHINICHIRO (JP)
YAMADA YUKINORI (JP)
KITAJIMA MIKI (JP)
KITAJIMA KENJI (JP)
Application Number:
PCT/JP2011/050230
Publication Date:
July 28, 2011
Filing Date:
January 08, 2011
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
INABA KAZUHIRO (JP)
NOMURA YASUSHI (JP)
YAMAMOTO SHINICHIRO (JP)
YAMADA YUKINORI (JP)
KITAJIMA MIKI (JP)
KITAJIMA KENJI (JP)
INABA KAZUHIRO (JP)
NOMURA YASUSHI (JP)
YAMAMOTO SHINICHIRO (JP)
YAMADA YUKINORI (JP)
KITAJIMA MIKI (JP)
KITAJIMA KENJI (JP)
International Classes:
H01F37/00
Foreign References:
| JP2007335833A | 2007-12-27 | |||
| JP2003197444A | 2003-07-11 | |||
| JP2008042094A | 2008-02-21 | |||
| JP2008166503A | 2008-07-17 | |||
| JP2009033051A | 2009-02-12 |
Other References:
See also references of EP 2528073A4
Attorney, Agent or Firm:
NAKATA, Motomi et al. (JP)
Nakada Motoki (JP)
Nakada Motoki (JP)
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Claims: