Patent ID: 11901836
Assignee: HITACHI ASTEMO, LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A power control unit comprising:
a plurality of power devices;
a heat dissipation member disposed to face the plurality of power devices with an insulating resin member interposed therebetween; and
a plurality of plate-shaped bus bars each of which has one end connected to a respective one of the plurality of power devices, wherein
at least one of the plurality of bus bars is erected so that a direction along a plate width is aligned with a direction along a normal line of a surface of the heat dissipation member facing the plurality of power devices,
the plurality of power devices are arranged in a row along one direction in a straight line,
a plurality of input bus bars, each connected to a respective input terminal of the plurality of power devices, are disposed on one side of the plurality of power devices in a direction orthogonal to an arrangement direction of the plurality of power devices,
a plurality of output bus bars, each connected to a respective output terminal of the plurality of power devices, are disposed on the other side of the power device in the orthogonal direction, and
each of the plurality of plate-shaped bus bars is disposed on one side of the respective one of the plurality of power devices in the arrangement direction of the plurality of power devices,
the plurality of input bus bars are erected so that the direction along the plate width is aligned with the direction along the normal line of the surface of the heat dissipation member facing the plurality of power devices, wherein
the insulating resin member has a wall portion disposed between a first power device of the plurality of power devices and a second power device of the plurality of power devices adjacent to the first power device, and
a common input bus bar, which straddles the wall portion and is connected to the first power device and the second power device, provided as the plurality of input bus bars.