公开(公告)号：US20180358903A1

公开(公告)日：2018-12-13

申请号：US16002339

申请日：2018-06-07

Applicant: DENSO CORPORATION

Inventor： Nobuaki TAKAHASHI ,  Yuya KIUCHI ,  Kenshiro HIDA

IPC: H02M7/00 ,  H01L23/46 ,  H05K5/04 ,  H05K7/20

CPC classification number: H02M7/003 ,  H01L23/46 ,  H02M7/5387 ,  H02P5/74 ,  H05K5/04 ,  H05K7/2089

Abstract: In a power converter, a semiconductor module incorporates therein a semiconductor element constituting a power converter circuit. A smoothing capacitor is configured to smooth a direct-current voltage applied to the semiconductor module. A pair of positive and negative busbars is configured to electrically connect the semiconductor module and the smoothing capacitor. The positive and negative busbars are arranged to face each other with a predetermined space therebetween. A discharge resistor is connected in parallel with the smoothing capacitor via the positive and negative busbars, and is configured such that an electrical charge stored in the smoothing capacitor flows through the discharge resistor as a discharge current. The positive and negative busbars are interposed between the discharge resistor and the smoothing capacitor.

公开(公告)号：US20220294360A1

公开(公告)日：2022-09-15

申请号：US17831589

申请日：2022-06-03

Applicant: DENSO CORPORATION

Inventor： Nobuaki TAKAHASHI

IPC: H02M7/00 ,  H02M7/537 ,  H02M1/084 ,  H05K7/14

Abstract: The power converter includes a capacitor connected to a power conversion unit, and a busbar module having a busbar covered with a molded insulating resin. The busbar module includes a fixed portion provided integrally with the busbar module and fixed to a casing by a fastener. The fixed portion has a shape protruding toward the capacitor from the busbar when the busbar module and the capacitor are viewed in a height direction. The fixed portion is located between the busbar and the capacitor unit.