| 摘要 |
PURPOSE: A noise reduction structure of a driving motor for electric vehicles is provided to reduce noise and vibration, generated due to the thickness of a coolant channel being relatively thinner than the other parts in a housing, by being equipped with a scrap capable of controlling vibration in the coolant channel. CONSTITUTION: A housing(11) of a driving motor(10) is equipped with a coolant channel(C) and enables a coolant to flow. The coolant channel is formed between an outer housing(11a) and an inner housing(11b), which construct the housing. A scrap(16) is prepared on the coolant channel and reduces the vibration of the driving motor by generating vibration with an opposite phase from the vibration generated from the driving motor when the driving motor is in operation.
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