A vehicle, comprising: an engine; a housing having a motor receiving space and a compressor receiving space therein; a motor located in the motor receiving space; a compressor located in the compressor receiving space and coupled to a rotation shaft of the motor, the compressor being configured to compress a refrigerant using at least one of a driving force of the engine and a driving force of the motor; and a first clutch coupled to the rotation shaft of the motor or a rotation shaft of the compressor, the first clutch being configured to connect or release a driving force of the engine and a driving force of the motor, characterised in that, the housing comprises: a first refrigerant inlet port to introduce a refrigerant to the motor receiving space from an outside of the housing; a first refrigerant discharge port to discharge a refrigerant to the outside of the housing from the motor receiving space; a second refrigerant inlet port to introduce a refrigerant to the compressor receiving space from the motor receiving space; and a second refrigerant discharge port to discharge a refrigerant to the outside of the housing from the compressor receiving space; and a separation wall partitions an internal space of the housing into the motor receiving space and the compressor receiving space, wherein the second refrigerant inlet port is formed in the separation wall. an engine; a housing having a motor receiving space and a compressor receiving space therein; a motor located in the motor receiving space; a compressor located in the compressor receiving space and coupled to a rotation shaft of the motor, the compressor being configured to compress a refrigerant using at least one of a driving force of the engine and a driving force of the motor; and a first clutch coupled to the rotation shaft of the motor or a rotation shaft of the compressor, the first clutch being configured to connect or release a driving force of the engine and a driving force of the motor, characterised in that, the housing comprises: a first refrigerant inlet port to introduce a refrigerant to the motor receiving space from an outside of the housing; a first refrigerant discharge port to discharge a refrigerant to the outside of the housing from the motor receiving space; a second refrigerant inlet port to introduce a refrigerant to the compressor receiving space from the motor receiving space; and a second refrigerant discharge port to discharge a refrigerant to the outside of the housing from the compressor receiving space; and a separation wall partitions an internal space of the housing into the motor receiving space and the compressor receiving space, wherein the second refrigerant inlet port is formed in the separation wall. a first refrigerant inlet port to introduce a refrigerant to the motor receiving space from an outside of the housing; a first refrigerant discharge port to discharge a refrigerant to the outside of the housing from the motor receiving space; a second refrigerant inlet port to introduce a refrigerant to the compressor receiving space from the motor receiving space; and a second refrigerant discharge port to discharge a refrigerant to the outside of the housing from the compressor receiving space; and a separation wall partitions an internal space of the housing into the motor receiving space and the compressor receiving space, wherein the second refrigerant inlet port is formed in the separation wall.