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
23.01.2020
Patent
Elektronische Ressource
Englisch
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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