US 12,137,542 B1
Power conversion apparatus, and method of manufacturing power conversion apparatus
Atsushi Yamashima, Kanagawa (JP)
Assigned to Panasonic Automotive Systems Co., Ltd., Kanagawa (JP)
Filed by Panasonic Automotive System Co., Ltd., Kanagawa (JP)
Filed on Dec. 9, 2022, as Appl. No. 18/063,882.
Application 18/063,882 is a continuation of application No. 17/111,935, filed on Dec. 4, 2020, granted, now 11,553,628.
Claims priority of application No. 2019-224459 (JP), filed on Dec. 12, 2019.
This patent is subject to a terminal disclaimer.
Int. Cl. H05K 7/20 (2006.01); H01F 27/08 (2006.01); H01L 23/367 (2006.01); H02M 1/32 (2007.01)
CPC H05K 7/209 (2013.01) [H01F 27/085 (2013.01); H01L 23/367 (2013.01); H02M 1/327 (2021.05)] 10 Claims
OG exemplary drawing
 
1. A power conversion apparatus comprising:
a case having a heat-dissipation property, and including a housing part formed to surround a predetermined space;
a resin material having a thermal conductivity, the resin material being provided in the predetermined space;
a coil disposed in the predetermined space;
a coil case having a shape that fits with the housing part, the coil case being configured to house the coil; and
a power semiconductor device having a first surface and a second surface opposite to the first surface,
wherein the power semiconductor device is disposed between a side wall of the housing part and a side wall of the coil case, and
the first surface contacts the side wall of the housing part, and the second surface contacts the side wall of the coil case.