Patent ID: 11935814
Assignee: HYUNDAI MOTOR COMPANY
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A motor drive device comprising:
a first inverter connected to first ends of three phase coils in a motor, the first inverter comprising a plurality of first switching elements;
a second inverter connected to second ends of the three phase coils, the second inverter comprising a plurality of second switching elements;
three transfer switching elements connected to the second ends of the three phase coils, the three transfer switching elements configured to open or block electrical connection between the second ends of the three phase coils;
a capacitor disposed at one side of a casing of the motor which is disposed adjacent a rotary shaft;
first and second cooling channels disposed at both sides of the capacitor, each of the first and second cooling channels having an interior into which a coolant is supplied;
three first power modules each comprising:
the plurality of first switching elements connected to the first end of one of the three phase coils; and

three second power modules each comprising the plurality of second switching elements connected to the second end of one of the three phase coils,
wherein the three first power modules and the three second power modules are disposed to be in contact with each of the first and second cooling channels.