Patent ID: 9694646
Date: 2017-07-04
CPC Classifications: B60H,F25B,H01M,Y02E

Claim:
1. A refrigeration cycle device comprising: a compressor compressing and discharging a refrigerant; a radiator radiating heat from the refrigerant discharged from the compressor; first and second pressure reducers connected in parallel downstream of the radiator in a refrigerant flow direction, and decompressing the refrigerant flowing out of the radiator; a first evaporator cooling a first cooling target and evaporating the refrigerant by heat exchange between the refrigerant decompressed by the first pressure reducer and the first cooling target; a second evaporator cooling a second cooling target and evaporating the refrigerant by heat exchange between the refrigerant decompressed by the second pressure reducer and the second cooling target; an accumulator separating gas and liquid of the refrigerant flowing out of the first and second evaporators, and causing a liquid phase refrigerant to be stored in the accumulator and a gas phase refrigerant to flow into the compressor; and a refrigerant passage through which a portion of the refrigerant flowing out of the radiator flows and is decompressed by a pressure reducer different from the second pressure reducer, so as to return the refrigerant containing a liquid phase refrigerant to the accumulator, in a cooling operation mode for cooling only the second cooling target of the first and second cooling targets, a remainder of the refrigerant passes through the second pressure reducer and the second evaporator in the cooling operation mode, wherein the second pressure reducer is a mechanical expansion valve, an opening degree of which is adjusted such that a degree of superheat of the refrigerant flowing out of the second evaporator is in a predetermined range, and wherein the refrigerant passage is a refrigerant passage through which a portion of the refrigerant flowing out of the radiator is introduced into the accumulator via the first pressure reducer that is different from the second pressure reducer and the first evaporator configured so as not to exhibit a cooling function when the blower is stopped.