The present invention addresses the problem of providing: a motor unit capable of controlling the flow of cooling air flowing on the outer surface of a motor; a method for controlling the flow of cooling air; and a self-propelled electric vehicle equipped with the motor unit. In a self-propelled electric vehicle (100), a motor unit (120) is attached to a frame (101) that supports front wheels (103) and rear wheels (108). The motor unit (120) is provided with a motor (121), an infusion pump (140), a radiator (141), and a blower (143). A cooling flow path (126) through which a cooling liquid flows and a cooling liquid chamber (127) are formed in a housing (124) of an electric motor (121), and an infusion pump (140) and a cooling liquid external pipe (144) are provided in an exposed state. A first flow path restricting part (145a) for guiding the cooling air (W) output by the blower (143) to the infusion pump (140) and a second flow path restricting part (145b) for preventing the flow of the cooling air (W) to the opening/closing cover (127a) are formed in the cooling liquid external pipe (144).
本发明的课题为提供一种可控制流动于电动机的外表面上的冷却风的流动的电动机单元、冷却风的流动控制方法以及装配电动机单元的自走式电动车辆。本发明的解决手段为自走式电动车辆(100)在支撑前轮(103)及后轮(108)的车架(101)安装电动机单元(120)。电动机单元(120)具备电动机(121)、输液泵(140)、散热器(141)及送风机(143)。于电动机(121)的壳体(124)形成流通有冷却液的冷却流路(126)及冷却液室(127),并在露出的状态下设置输液泵(140)及冷却液外部配管(144)。在冷却液外部配管(144)形成有将送风机(143)输出的冷却风(W)引导至输液泵(140)的第一流路限制部(145a)及阻止往开闭盖(127a)的流动的第二流路限制部(145b)。
Electric motor unit, method for controlling flow of cooling air, and self-propelled electric vehicle
电动机单元、冷却风的流动控制方法及自走式电动车辆
2023-05-19
Patent
Electronic Resource
Chinese
ELECTRIC MOTOR UNIT, METHOD FOR CONTROLLING FLOW OF COOLING AIR, AND SELF-PROPELLED ELECTRIC VEHICLE
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