US 12,073,980 B2
Reactor
Takashi Misaki, Yokkaichi (JP)
Assigned to AutoNetworks Technologies, Ltd., Yokkaichi (JP); Sumitomo Wiring Systems, Ltd., Yokkaichi (JP); and Sumitomo Electric Industries, Ltd., Osaka (JP)
Appl. No. 17/277,110
Filed by AutoNetworks Technologies, Ltd., Yokkaichi (JP); Sumitomo Wiring Systems, Ltd., Yokkaichi (JP); and Sumitomo Electric Industries, Ltd., Osaka (JP)
PCT Filed Sep. 9, 2019, PCT No. PCT/JP2019/035364
§ 371(c)(1), (2) Date Mar. 17, 2021,
PCT Pub. No. WO2020/059558, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 2018-178045 (JP), filed on Sep. 21, 2018.
Prior Publication US 2022/0115175 A1, Apr. 14, 2022
Int. Cl. H01F 27/26 (2006.01); H01F 27/25 (2006.01); H01F 27/255 (2006.01); H01F 27/28 (2006.01); H01F 41/02 (2006.01)
CPC H01F 27/26 (2013.01) [H01F 27/255 (2013.01); H01F 27/2823 (2013.01); H01F 41/0246 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A reactor comprising:
a coil including a winding portion formed by winding a winding wire;
a magnetic core including an inner core portion disposed inside the winding portion, and an outer core portion disposed outside the winding portion; and
an inner resin portion filled between an inner circumferential surface of the winding portion and an outer circumferential surface of the inner core portion,
wherein, when a vertical direction is a direction orthogonal both to an inward-outward direction of the outer core portion, assuming that a side of the outer core portion that faces the inner core portion is an inner side, and a side opposite to the inner side is an outer side, and to a direction of a magnetic flux excited in the outer core portion,
the outer core portion includes a plurality of core pieces coupled in the vertical direction via a dividing plane that intersects the vertical direction; and
wherein the outer core portion includes a hole portion extending therethrough in the inward-outward direction, and the dividing plane of the outer core portion divides the hole portion in the vertical direction; and
the inner core portion does not have a dividing plane passing therethrough from a surface thereof on one end side toward a surface thereof on another end side in the inward-outward direction.