Patent ID: 11942869
Assignee: DENSO CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A power module applied to an electric power conversion device in which a plurality of upper-lower arm circuits are connected to an electric power line in parallel, the power module comprising:
the plurality of upper-lower arm circuits;
a capacitor connected to each of the plurality of upper-lower arm circuits in parallel;
an upper wiring that connects an upper arm configuring each of the plurality of upper-lower arm circuits and a positive electrode terminal of the capacitor;
a lower wiring that connects a lower arm configuring each of the plurality of upper-lower arm circuits and a negative electrode of the capacitor;
an upper electric power wiring that is an electric power wiring connected to the electric power line and connects a high potential line of the electric power line and the upper wiring;
a lower electric power wiring that is an electric power wiring connected to the electric power line and connects a lower potential line of the electric power line and the lower wiring;
the upper-lower arm circuit includes a semiconductor device; and
the power module further includes
a case that includes a plurality of open ends and houses the semiconductor device and the capacitor,
a cooler configured to cool the semiconductor device,
a drive substrate configured to output a drive signal to the semiconductor device, and
a sealing material that is filled in the case in a state where one of the plurality of ends is closed by at least one of the cooler or the drive substrate, and seals at least a part of the semiconductor device or at least a part of the capacitor.