US 12,148,559 B2
Reactor
Takehito Kobayashi, Mie (JP); Kohei Yoshikawa, Mie (JP); Seiji Shitama, Mie (JP); and Naotoshi Furukawa, Mie (JP)
Assigned to AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Appl. No. 17/292,827
Filed by AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
PCT Filed Nov. 5, 2019, PCT No. PCT/JP2019/043325
§ 371(c)(1), (2) Date May 11, 2021,
PCT Pub. No. WO2020/100658, PCT Pub. Date May 22, 2020.
Claims priority of application No. 2018-213781 (JP), filed on Nov. 14, 2018.
Prior Publication US 2021/0398728 A1, Dec. 23, 2021
Int. Cl. H01F 27/02 (2006.01); H01F 27/24 (2006.01); H01F 27/26 (2006.01); H01F 27/28 (2006.01)
CPC H01F 27/022 (2013.01) [H01F 27/24 (2013.01); H01F 27/266 (2013.01); H01F 27/28 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A reactor, comprising:
an assembly of a coil and a magnetic core;
a case for accommodating the assembly inside;
a sealing resin portion for at least partially sealing the assembly by being filled into the case; and
a supporting portion to be fixed to the case in a cantilever manner,
wherein:
the case includes a bottom plate portion, the assembly being placed on the bottom plate portion, and a side wall portion in the form of a rectangular frame for surrounding an outer periphery of the assembly,
the side wall portion includes a pair of short side portions and a pair of long side portions having different lengths along a circumferential direction of the case,
the coil includes a pair of winding portions,
the pair of winding portions are stacked in a direction orthogonal to the bottom plate portion and have axes parallel to each other,
the magnetic core includes a pair of outer core portions to be arranged outside the coil,
the supporting portion includes a fixed end to be fixed to an end surface of one of the pair of short side portions of the side wall portion, an overlapping region configured to overlap an outer core portion located at a side of the supporting portion, of the pair of outer core portions from above, and a free end not to be fixed to the case,
the overlapping region extends along the long side portions of the side wall portion,
the free end is provided on a side opposite to the fixed end, and
the sealing resin portion is interposed between the free end of the supporting portion and the outer core portion to prevent the free end from directly contacting the outer core portion.