A motor drive unit includes a case, a circuit board, a power connector, and a case connection portion connecting the circuit board and the case. The power connector includes a positive terminal and a negative terminal, and a positive line portion connected to the positive terminal and a substrate positive connection portion, and a negative line portion connected to the negative terminal and a substrate negative connection portion. A power circuit portion includes a common mode filter including first and second capacitors. A case connection portion includes an electrically conductive surrounding portion surrounding at least one of at least a portion of the positive line portion and at least a portion of the negative line portion, and a case connection line connected to a point between the first capacitor and the second capacitor, and an electrically conductive portion of the case.
MOTOR DRIVE UNIT AND ELECTRIC POWER STEERING SYSTEM
2020-01-23
Patent
Electronic Resource
English
IPC: | H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B62D MOTOR VEHICLES , Motorfahrzeuge / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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