US Patent No. 10,893,610

SWITCHING DEVICE DRIVING UNIT


Patent No. 10,893,610
Issue Date January 12, 2021
Title Switching Device Driving Unit
Inventorship Kei Hayase, Tokyo (JP)
Assignee Mitsubishi Electric Cornoration, Tokyo (JP)

Claim of US Patent No. 10,893,610

10. A switching device driving unit comprising:a circuit board which has a circuit pattern;
a semiconductor switching element which is connected with the circuit board and is composed of wideband gap semiconductor;
a cooling device which cools the semiconductor switching element and is electrically insulated from the semiconductor switching element; and
a driver which drives the semiconductor switching element,
wherein the driver is surface mounted on a second face of the circuit board, which opposes a first face of the circuit board on which the cooling device is disposed, and is electrically insulated from the cooling device,
wherein the semiconductor switching element has a main body portion of plate like shape and a lead which extends in a linear fashion from a side face of the main body portion, and
the lead is inserted from the first face side into a through hole which penetrates the circuit board, and is attached to the circuit board, and
the main body portion extends in a normal direction of the first face, at the first face side of the circuit board, and
the cooling device is attached to one side cooling surface of the main body portion,
a protruding portion of the lead which protrudes from the through hole to the second face side is connected to a terminal of the driver via a connection pattern provided in the second face.