COOLING DEVICE, ELECTRIC AUTOMOBILE AND ELECTRONIC DEVICE EQUIPPED WITH SAID COOLING DEVICE

摘要

In cooling device, refrigerant is circulated through heat receiving unit, heat radiation passage, heat radiation unit, return passage, and heat receiving unit, and cooling is performed by making use of a phase change between a liquid phase and a gaseous phase of refrigerant. Heat receiving unit is configured by placing in series a plurality of heat receivers each of which has inflow port and an outflow port. Check valve is provided on an inflow port side of heat receiver which is closest to return passage among the plurality of heat receivers.

主权项

1. A cooling device comprising:
a heat receiving unit which absorbs heat generated by a heat generating element and transfers the heat (generated by the heat generating element) to a refrigerant; a heat radiation unit which radiates the heat of the refrigerant; and a heat radiation passage and a return passage which connect the heat receiving unit and the heat radiation unit, the cooling device performing cooling by making use of a phase change between a liquid phase and a gaseous phase of the refrigerant by circulating the refrigerant through the heat receiving unit, the heat radiation passage, the heat radiation unit, the return passage, and the heat receiving unit, wherein the heat receiving unit is configured by placing in series a plurality of heat receivers each of which has an inflow port and an outflow port for the refrigerant, and a check valve is provided on an inflow port side of a heat receiver which is closest to the return passage among the plurality of heat receivers.