Patent ID: 8015835

Claim:
An internal cooling apparatus for automobiles, the apparatus comprising: a first expansion valve; a main evaporator configured to receive a refrigerant from the first expansion valve through a high-pressure pipe; a compressor configured to receive the refrigerant evaporated in the main evaporator through a low-pressure pipe; a condenser configured to receive the refrigerant compressed in the compressor; a plurality of sub-evaporators formed of a resin tube, each configured to be installed inside a seat to contact with an automobile passenger; and a second expansion valve configured to receive a part of the refrigerant passing through the condenser; wherein the second expansion valve and the sub-evaporator are connected in parallel with the first expansion valve and the main evaporator, wherein the plurality of sub-evaporators are connected in parallel with one another, and wherein one end of each of the sub-evaporators is communicated with the second expansion valve and the other end thereof is communicated with the low-pressure pipe such that the refrigerant sprayed through the second expansion valve is supplied to the compressor through each of the sub-evaporators.