PROBLEM TO BE SOLVED: To efficiently cool a lubrication oil used for cooling a motor part and lubricating a speed reduction part.SOLUTION: In a cooling structure of an in-wheel motor drive device 16, the in-wheel motor drive device 16, which is attached to a vehicle body 11 of an electric vehicle by a suspension 12 so as to enable relative movement, is housed in a wheel 13 of the electric vehicle and a lubrication oil supplied to the in-wheel motor drive device 16 by an oil pump 24 is cooled. The suspension 12 includes: an upper arm 21 which attaches an upper part of the in-wheel motor drive device 16 to the vehicle body 11; and a lower arm 22 which attaches a lower part of the in-wheel motor drive device 16 to the vehicle body 11. The oil pump 24 is fixedly placed at the lower arm 22 of the suspension 12.SELECTED DRAWING: Figure 1
【課題】 モータ部の冷却および減速部の潤滑に使用される潤滑油を効率よく冷却する。【解決手段】 電動車両の車体11に対してサスペンション12により相対移動可能に取り付けられたインホイールモータ駆動装置16を電動車両の車輪13の内部に収容し、オイルポンプ24によりインホイールモータ駆動装置16に供給される潤滑油を冷却するインホイールモータ駆動装置16の冷却構造であって、サスペンション12は、車体11に対してインホイールモータ駆動装置16の上部に取り付けられたアッパアーム21と、車体11に対してインホイールモータ駆動装置16の下部に取り付けられたロアアーム22とを備え、オイルポンプ24をサスペンション12のロアアーム22に載置固定する。【選択図】 図1
COOLING STRUCTURE OF IN-WHEEL MOTOR DRIVE DEVICE
インホイールモータ駆動装置の冷却構造
2017-07-20
Patent
Electronic Resource
Japanese
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