Temperature adjusting device
A temperature adjusting device includes a heat radiation portion and a refrigeration cycle device. The heat radiation portion radiates heat of a target object to outside air. The refrigeration cycle device has a condenser and an evaporator. The condenser condenses a high-pressure refrigerant discharged from a compressor that compresses and discharges a refrigerant. The evaporator evaporates a low-pressure refrigerant pressure-reduced in a pressure reducing portion that reduces a pressure of the high-pressure refrigerant. The condenser radiates heat of the high-pressure refrigerant to at least part of the outside air that has passed through the heat radiation portion. The heat radiation portion radiates the heat of the target object to the outside air before heat of the outside air is absorbed in the condenser.
1. A temperature adjusting device comprising:
an evaporation-side target-object heat exchanger in which a first heat medium flows to exchange heat with an evaporation-side target object;
a refrigeration cycle device that includes a condenser configured to condense a high-pressure refrigerant discharged from a compressor that compresses and discharges a refrigerant, and an evaporator configured to evaporate a low-pressure refrigerant pressure reduced in a pressure reducing portion that reduces a pressure of the high-pressure refrigerant;
a condensing-side heat exchanger that is thermally connected to the condenser and exchanges heat between a second heat medium and the high-pressure refrigerant;
a first heat exchanger configured to exchange heat between the first heat medium flowing out of the evaporation-side target-object heat exchanger and outside air;
a second heat exchanger configured to exchange heat between the second heat medium flowing out of the condensing-side heat exchanger and the outside air;
an evaporation-side heat exchanger thermally connected to the evaporator and exchanges heat between the first heat medium and the low-pressure refrigerant;
a first heat medium circuit that circulates the first heat medium;
a second heat medium circuit that circulates the second heat medium; and
a switching unit configured to switch circuit configurations of the first heat medium circuit, wherein
the first heat exchanger exchanges heat between the first heat medium flowing out of the evaporation-side target-object heat exchanger and the outside air;
the second heat exchanger exchanges heat between the second heat medium flowing out of the condensing-side heat exchanger and at least part of the outside air that has passed through the first heat exchanger,
the first heat medium circuit and the second heat medium circuit are configured as independent heat medium circuits in which the first heat medium is not mixed with the second heat medium, and
the switching unit is configured to switch a circuit configuration in which the first heat medium flowing out of the first heat exchanger flows into the evaporation-side target-object heat exchanger and a circuit configuration in which the first heat medium flowing out of the first heat exchanger flows into the evaporation-side heat exchanger.
2. The temperature adjusting device according to claim 1 , further comprising:
a heater configured to heat a heating target fluid by using the high-pressure refrigerant as a heat source, wherein
the refrigeration cycle device is configured such that heat absorbed by the refrigerant from the first heat medium in the evaporator is radiated to the second heat medium in the condenser.
3. The temperature adjusting device according to claim 1 , further comprising:
a heater configured to heat a heating target fluid by using the high-pressure refrigerant as a heat source, wherein
the refrigeration cycle device is configured such that heat absorbed by the refrigerant from the second heat medium in the evaporator is radiated to the second heat medium in the condenser.
4. The temperature adjusting device according to claim 1 , further comprising:
an outside-air-side target-object heat exchanger in which the first heat medium flows to exchange heat with an outside-air-side target object.
5. The temperature adjusting device according to claim 1 , further comprising:
an outside-air-side target-object heat exchanger in which the second heat medium flows to exchange heat with an outside-air-side target object.
6. The temperature adjusting device according to claim 1 , wherein
the first heat exchanger and the second heat exchanger are thermally connected to each other to perform heat transfer between the first heat medium and the second heat medium.
7. The temperature adjusting device according to claim 1 , wherein
the refrigeration cycle device further includes a fluid-side evaporator configured to evaporate the refrigerant pressure reduced in a fluid-side pressure reducing portion that reduces a pressure of the high-pressure refrigerant, through heat exchange with a cooling target fluid, and
the evaporator and the fluid-side evaporator are connected in parallel to each other, with respect to a flow of the high-pressure refrigerant flowing out of the condenser.
8. The temperature adjusting device according to claim 7 , further comprising:
an evaporation-side heat exchanger that is thermally connected to the evaporator and exchanges heat between the first heat medium and the low-pressure refrigerant, wherein the cooling target fluid is ventilation air blown to a space to be air conditioned; and
an inside-outside air switch unit configured to adjust a ratio between inside air in the space to be air conditioned and outside air outside the space to be air conditioned, in the ventilation air flowing into the fluid-side evaporator, wherein
the inside-outside air switch unit increases a ratio of the outside air, when an operation mode in which the cooling target fluid is cooled in the fluid-side evaporator is switched to an operation mode in which the cooling target fluid is cooled in the fluid-side evaporator and the first heat medium cooled in the evaporation-side heat exchanger flows into the evaporation-side target-object heat exchanger.