Air conditioner for adjusting a temperature of a seat and an interior in a vehicle
A vehicle air conditioner includes: a refrigeration cycle in which a refrigerant circulates; a high-temperature cycle in which a first heat medium in liquid form heated by the refrigeration cycle circulates; a low-temperature cycle in which a second heat medium in liquid form cooled by the refrigeration cycle circulates; and a seat that is provided in a vehicle interior and has a warm flow passage and a cold flow passage disposed close to each other. The warm flow passage is provided on the route of the high-temperature cycle, and the cold flow passage is provided on the route of the low-temperature cycle.
1. A vehicle air conditioner comprising:
a refrigeration cycle in which a refrigerant circulates;
a high-temperature cycle in which a first heat medium in liquid form heated by the refrigeration cycle circulates;
a low-temperature cycle in which a second heat medium in liquid form cooled by the refrigeration cycle circulates; and
a seat that is provided in a vehicle interior and has a warm flow passage and a cold flow passage disposed adjacent to each other, wherein
the warm flow passage is provided on a route of the high-temperature cycle, and
the cold flow passage is provided on a route of the low-temperature cycle.
2. The vehicle air conditioner according to claim 1 , further comprising a temperature adjustment mechanism that is provided in the vehicle interior and configured to adjust a temperature of air supplied to the vehicle interior, wherein
the temperature adjustment mechanism includes a heater configured to heat the air to be supplied and a cooler configured to cool the air to be supplied,
the heater is provided on a route of the high-temperature cycle, parallel to the warm flow passage, and
the cooler is provided on a route of the low-temperature cycle, parallel to the cold flow passage.
3. The vehicle air conditioner according to claim 1 , wherein
the refrigeration cycle includes:
a compressor configured to compress the refrigerant;
a condenser configured to condense the refrigerant having been compressed by the compressor; and
an evaporator configured to evaporate the refrigerant from the condenser,
the high-temperature cycle includes a high-temperature-side heat exchanger configured to make the refrigerant flowing through the condenser and the first heat medium exchange heat with each other, and
the low-temperature cycle includes a low-temperature-side heat exchanger configured to make the refrigerant flowing through the evaporator and the second heat medium exchange heat with each other.
4. The vehicle air conditioner according to claim 1 , wherein a direction in which the first heat medium flows in the warm flow passage and a direction in which the second heat medium flows in the cold flow passage are opposite from each other.
5. The vehicle air conditioner according to claim 1 , wherein
the seat comprises a plurality of seats provided in the vehicle interior;
each of the plurality of seats comprises a warm flow passage and a cold flow passage, and
the vehicle air conditioner further comprises:
a first total amount valve configured to adjust an amount of the first heat medium supplied from the high-temperature cycle to the plurality of seats; and
a second total amount valve configured to adjust an amount of the second heat medium supplied from the low-temperature cycle to the plurality of seats.
6. The vehicle air conditioner according to claim 1 , wherein:
the seat comprises a plurality of seats provided in the vehicle interior;
each of the plurality of seats comprises a warm flow passage and a cold flow passage, and
the vehicle air conditioner further comprises:
first branch flow passages in which the warm flow passages are respectively provided;
second branch flow passages in which the cold flow passages are respectively provided;
first separate valves that are respectively provided in the first branch flow passages and configured to adjust a flow rate of the first heat medium supplied to the first branch flow passages; and
second separate valves that are respectively provided in the second branch flow passages and configured to adjust a flow rate of the second heat medium supplied to the second branch flow passages.