US 11,996,783 B2
Power converter
Katsuhiro Ichihashi, Nisshin (JP); and Syuji Kurauchi, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on May 3, 2022, as Appl. No. 17/735,453.
Application 17/735,453 is a continuation of application No. PCT/JP2020/041201, filed on Nov. 4, 2020.
Claims priority of application No. 2019-203324 (JP), filed on Nov. 8, 2019.
Prior Publication US 2022/0263426 A1, Aug. 18, 2022
Int. Cl. H05K 5/00 (2006.01); H02M 1/00 (2006.01); H02M 7/00 (2006.01); H05K 7/14 (2006.01)
CPC H02M 7/003 (2013.01) [H02M 1/0067 (2021.05); H05K 7/1427 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A power converter comprising:
a housing provided with a predetermined first support portion and a second support portion, with a step formed between the first support portion and the second support portion,
a predetermined first board in which a predetermined first board hole is formed, the first board being fixed to the second support portion in a state in which a predetermined transformer core is inserted into the first board hole to determine a position of a predetermined first coil relative to a second coil;
a second board in which a second board hole is formed, the second board being fixed to the first support portion in a state in which the transformer core is inserted into the second board hole;
a plurality of ports provided to the housing;
a plurality of conversion circuits provided to the respective ports, each of the plurality of conversion circuits being electrically connected to a corresponding one of the ports and performing conversion between DC or AC used on the port side and AC having a predetermined frequency to transmit AC power having the predetermined frequency between the coils, using magnetic coupling, and to perform transformation with the transmission, and the plurality of conversion circuits including a predetermined first conversion circuit mounted to the first board and a second conversion circuit mounted to the second board; and
a plurality of coils provided to the respective conversion circuits, each of the plurality of coils being electrically connected to a corresponding one of the conversion circuits and wound around the transformer core, the plurality of coils including the first coil electrically connected to the first conversion circuit and the second coil electrically connected to the second conversion circuit, the first coil being fixed along the first board hole of the first board, in a state in which the first coil moves together with the first board, and the second coil being fixed along the second board hole of the second board, in a state in which the second coil moves together with the second board.