Device temperature regulator

A device temperature regulator for regulating a temperature of at least one temperature regulation target device, the device temperature regulator comprising:

• a fluid circuit in which a working fluid circulates;
• a heat exchanger disposed in the fluid circuit and having a heat exchanging portion configured to exchange heat with the temperature regulation target device and to evaporate a liquid working fluid;
• a condenser disposed in the fluid circuit at a position above the heat exchanger to condense a gaseous working fluid evaporated in the heat exchanger;
• a gas passage provided in the fluid circuit to guide the gaseous working fluid evaporated in the heat exchanger to the condenser;
• a liquid passage provided in the fluid circuit to guide the liquid working fluid condensed in the condenser to the heat exchanger;
• and
• a flow regulator configured to increase or decrease a supply amount of the liquid working fluid from the condenser to the device heat exchanger, wherein
• the flow regulator is configured to decrease the supply amount of the liquid working fluid supplied to the device heat exchanger, such that a gaseous working fluid layer is positioned in the heat exchanger at a position lower than the heat exchanging portion of the heat exchanger, in a predetermined temperature condition of the device temperature regulator.