| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor cooler for a motor automobile which improves the cooling efficiency of the motor including a motor coil by efficiently radiating heat generated in a bus bar from a housing. SOLUTION: A wheel is driven by the motive power of the motor 3 provided to a wheel axle, and the motor 3 contains a bus bar 15 for connecting the motor coil 12 with the housing 10, and a heat radiating fin 20 is formed in a section where the bus bar 15 of the housing 10 is arranged. Consequently, this cooler can radiate heat generated due to the copper loss of the bus bar 15 itself at a high load of the motor 3 or heat generated due to the copper loss of the motor coil 12 and conducted through the bus bar 15, efficiently to the air via the heat radiating fin 20. COPYRIGHT: (C)2006,JPO&NCIPI
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