Motor cooling structure for electric vehicle

Details Motor cooling structure for electric vehicle Motor cooling structure for electric vehicle

B - Operations, Transporting

60

K

B60K 11/06 (2006.01) F01P 1/06 (2006.01) H02K 9/04 (2006.01)

Patent

CA 2512527

To provide a motor cooling structure for an electric vehicle which can efficiently cool a driving motor in a power unit case of the electric vehicle. A transmission case cover having an air filter is mounted on the left side surface of a transmission case at a portion adjacent to a fan, and a ventilation gap is defined between a rear portion of the transmission case cover and the transmission case. The transmission case cover is formed with a cooling air inlet facing the above ventilation gap. When the fan is rotated in synchronism with a crankshaft, an outside cooling air is introduced from the cooling air inlet into the transmission case cover and is then passed through the air filter to enter the transmission case, thereby forcibly cooling a CVT 23. Thereafter, a part of the cooling air introduced into the transmission case is discharged from a central air outlet to the outside of the transmission case, and the remaining cooling air is drawn to the driven portion of the CVT 23.

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