Refrigerator

A refrigerator capable of preventing a refrigerator oil from reversely flowing out of a compressor disposed on the top surface of an heat insulating box. The refrigerator comprises the internal low pressure type compressor disposed on the top surface of the heat insulating box, an evaporator installed under the compressor, a suction pipe connecting the compressor to the evaporator, and an oil outflow prevention trap in the suction pipe. Accordingly, though the compressor is also fallen sideways when the refrigerator is carried in the state of being fallen sideways in carrying and transferring the refrigerator, the refrigerator oil can be prevented from reversely flowing out of the compressor by the oil outflow prevention trap. Thus, the supply of the oil to the sliding parts of the compressor can be secured in the compressor to further reduce damage to the compressor.