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摘要

The present invention relates to an electric generation device and, more specifically, to an electric generation device using a heat pump capable of generating power using a pressure difference generated in an operation cycle of a heat pump. According to an aspect of the present invention, the electric generation device using a heat pump having an accumulator, a compressor, and a 4-way valve comprises: a return pipe installed to the accumulator while being separated from an injection pipe through which low-pressure gas flows in the compressor such that the circulated low-pressure gas can be discharged to the accumulator; a supply pipe installed to the compressor to flow the high-pressure gas discharged from the compressor and branched from a discharge pipe connected to the 4-way valve to supply the high-pressure gas; a solenoid valve in which the return pipe for discharging the circulated low-pressure gas and the supply pipe for supplying the high-pressure gas are installed and enabling direction control; and a double acting cylinder in which a piston reciprocates by receiving the high-pressure gas of the solenoid valve and discharging the low-pressure gas to the solenoid valve and the return pipe after the operation of the piston; and a gear device for operating a power generator by converting the reciprocating motion of the double acting cylinder to a rotation motion.