Temperature control device and dump truck

Abstract

The present invention addresses the problem of providing a temperature management device that makes it possible to stably cool an electric motor. A temperature management device according to the present invention is a temperature management device 10 for an electric work machine comprising: an electric motor 120 that has a predetermined first management temperature range; a power supply device 110 that supplies electric power to the electric motor, and has a second management temperature range within the first management temperature range; a hydraulic pump 122 that is driven by the electric motor to increase the pressure of hydraulic oil to a predetermined pressure; and a work device that receives a supply of the hydraulic oil with the pressure increased by the hydraulic pump, and is driven with the predetermined pressure. The temperature management device comprises: a pump for pressure-feeding a liquid for heat exchange; a liquid pipe 16 in which a power source, an electric motor, and the pump are disposed, and through which the liquid is circulated; a heat exchange device 90 that exchanges heat with the liquid that has exchanged heat with the power source and the electric motor; and a temperature control unit 56 that controls the heat exchange device to maintain the temperature of the liquid within the second management temperature range.

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