Air conditioner

An air conditioner comprising:

• a compressor that compresses a refrigerant;
• a condenser that exchanges heat between the refrigerant and air fed by a first blower to condense the refrigerant;
• an evaporator that exchanges heat between the refrigerant and air fed by a second blower to evaporate the refrigerant;
• a branch part that distributes the refrigerant having flowed out of the condenser into a main circuit communicating with the evaporator and a bypass circuit that bypasses the evaporator;
• a confluence part that merges the refrigerant from the main circuit and the refrigerant from the bypass circuit;
• a first throttle that decompresses and expands the refrigerant between the condenser and the evaporator;
• a first inter-refrigerant heat exchanger that exchanges heat between the refrigerant between the condenser and the first throttle, and the refrigerant between the confluence part and suction into the compressor;
• a second throttle that is disposed in the bypass circuit and decompresses and expands the refrigerant distributed at the branch part;
• and
• a second inter-refrigerant heat exchanger that is disposed in the bypass circuit and exchanges heat between the refrigerant decompressed and expanded by the second throttle and the refrigerant having flowed out of a condensation-side outlet of the first inter-refrigerant heat exchanger,
• wherein the bypass circuit is configured to cause the refrigerant having flowed from the second inter-refrigerant heat exchanger to flow to the confluence part and merge with the refrigerant having flowed from the evaporator at the confluence part,
• the air conditioner further comprising:
• a controller that adjusts the first throttle;
• a condensation-side inlet temperature detector that detects temperature of the refrigerant at a condensation-side inlet of the first inter-refrigerant heat exchanger;
• and
• an evaporation-side outlet temperature detector that detects temperature of the refrigerant at an evaporation-side outlet of the first inter-refrigerant heat exchanger, wherein the controller adjusts the first throttle by using information on the temperature of the refrigerant detected by the condensation-side inlet temperature detector and the temperature of the refrigerant detected by the evaporation-side outlet temperature detector.

An air conditioner comprising:

• a compressor that compresses a refrigerant;
• a condenser that exchanges heat between the refrigerant and air fed by a first blower to condense the refrigerant;
• an evaporator that exchanges heat between the refrigerant and air fed by a second blower to evaporate the refrigerant;
• a branch part that distributes the refrigerant having flowed out of the condenser into a main circuit communicating with the evaporator and a bypass circuit that bypasses the evaporator;
• a confluence part that merges the refrigerant from the main circuit and the refrigerant from the bypass circuit;
• a first throttle that decompresses and expands the refrigerant between the condenser and the evaporator;
• a first inter-refrigerant heat exchanger that exchanges heat between the refrigerant between the condenser and the first throttle, and the refrigerant between the confluence part and suction into the compressor;
• a second throttle that is disposed in the bypass circuit and decompresses and expands the refrigerant distributed at the branch part;
• and
• a second inter-refrigerant heat exchanger that is disposed in the bypass circuit and exchanges heat between the refrigerant decompressed and expanded by the second throttle and the refrigerant having flowed out of a condensation-side outlet of the first inter-refrigerant heat exchanger,
• wherein the bypass circuit is configured to cause the refrigerant having flowed from the second inter-refrigerant heat exchanger to flow to the confluence part and merge with the refrigerant having flowed from the evaporator at the confluence part,
• the air conditioner further comprising:
• a controller that adjusts the second throttle;
• a condensation-side intermediate temperature detector that detects temperature of the refrigerant at the condensation-side inlet of the second inter-refrigerant heat exchanger;
• and
• an evaporation-side intermediate temperature detector that detects temperature of the refrigerant at the evaporation-side outlet of the second inter-refrigerant heat exchanger, wherein the controller adjusts the second throttle by using information on the temperature of the refrigerant detected by the condensation-side intermediate temperature detector and the temperature of the refrigerant detected by the evaporation-side intermediate temperature detector.