Title:
REACTOR
Document Type and Number:
WIPO Patent Application WO/2019/171940
Kind Code:
A1
Abstract:
A reactor comprising a coil having a winding section, a magnetic core including an inner core section disposed inside the winding section and an outer core section disposed outside the winding section, and a resin mold part including an inner resin portion filled into the space between the winding section and the inner core section, at least partially, wherein the spacing between the winding section and the inner core section differs along the circumferential direction of the winding section, the reactor is further provided with an electrical insulation material interposed at the location where the spacing is narrowest and a thick wall portion interposed at the location where the spacing is widest and constituting a portion of the inner resin portion, and the relationship (spacing t1/thermal conductivity λ1) < (spacing t2/thermal conductivity λ2) is satisfied, where λ1 is the thermal conductivity of the electrical insulation material, t1 is the spacing at the narrowest location, (spacing t1/thermal conductivity λ1) is the ratio of the spacing t1 to the thermal conductivity λ1, λ2 is the thermal conductivity of the thick wall portion, t2 is the spacing at the widest location, and (spacing t2/thermal conductivity λ2) is the ratio of the spacing t2 to the thermal conductivity λ2.
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Inventors:
YAMAMOTO SHINICHIRO (JP)
YOSHIKAWA KOHEI (JP)
YOSHIKAWA KOHEI (JP)
Application Number:
PCT/JP2019/006109
Publication Date:
September 12, 2019
Filing Date:
February 19, 2019
Export Citation:
Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H01F37/00; H01F27/24
Domestic Patent References:
| WO2015190215A1 | 2015-12-17 |
Foreign References:
| JP2015144237A | 2015-08-06 |
Attorney, Agent or Firm:
YAMANO Hiroshi et al. (JP)
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