To obtain an electric vehicle driving device that can be efficiently cooled, decreases weight and size, and facilitates assembling to an electric vehicle.SOLUTION: An electric vehicle driving device is equipped with a motor with a rotary shaft, a gear box that stores a deceleration mechanism coupled to the rotary shaft and a differential mechanism coupled to the deceleration mechanism, a final gear shaft that is coupled to the differential mechanism on one side, a support structure that supports the other side of the final gear shaft and is fixed to the motor, and a radiator that cools the motor. The motor and the final gear shaft are oppositely disposed at an interval. The gear box is provided on one side in an X-direction of the motor and the final gear shaft, and the support structure is provided on the other side in the X-direction of the motor and the final gear shaft. The radiator is provided on any one-way side of the other side in a Y-direction, one side in a Z-direction, and the other side in the Z-direction, with respect to the final gear shaft, or any two-way side thereof.SELECTED DRAWING: Figure 1
【課題】効率よく冷却できると共に、軽量化及び小型化され、電動車両への組込みが容易な電動車両駆動装置を得ること。【解決手段】回転軸を有したモータと、回転軸に連結された減速機構、及び減速機構に連結された差動機構を収容したギヤボックスと、一方の側が、差動機構に連結されたファイナルギヤ軸と、ファイナルギヤ軸の他方の側を支持し、モータに固定された支持構造体と、モータを冷却する放熱器と、を備え、モータとファイナルギヤ軸とは、間隔を空け、対向して配置され、モータ及びファイナルギヤ軸のX方向の一方の側にギヤボックス、モータ及びファイナルギヤ軸のX方向の他方の側に支持構造体が設けられ、放熱器は、ファイナルギヤ軸に対して、Y方向の他方側、Z方向の一方側、及びZ方向の他方側のいずれか一方向の側、もしくはいずれか二方向の側に設けられている。【選択図】図1
ELECTRIC VEHICLE DRIVING DEVICE
電動車両駆動装置
2025-03-25
Patent
Electronic Resource
Japanese
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