Heat pump system

Abstract

The application relates to the heat exchange technical field, in particular to a heat pump system, which comprises a compressor, an expansion valve, a circulating branch and a heat exchanger. The heat exchanger comprises a heat conduction frame, heat exchange flat tubes, a heat dissipation plate and a heat transfer piece. The heat exchange flat tubes are arranged on the side walls of the heat conduction frame and are provided with a plurality of heat exchange flat tubes. The heat dissipation plate is arranged on the side of the heat exchange flat tubes away from the heat conduction frame. The heat transfer piece is arranged between the heat exchange flat tubes and the heat dissipation plate, and the heat transfer piece is used for transferring heat in the heat exchange flat tubes to the heat dissipation plate. The plurality of heat exchange flat tubes are arranged in parallel with each other, the extending direction of the heat exchange flat tubes is defined as the first direction, the length direction of the heat transfer piece is arranged perpendicularly to the first direction, and the heat transfer piece is arranged in multiple. The position structures of the heat conduction frame, the heat exchange flat tubes, the heat dissipation plate and the heat transfer piece are limited, so that the influence of the boundary layer thickness of the natural convection heat exchange on the heat exchange amount is reduced, and the heat dissipation efficiency is improved.

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