Direct freezing type refrigerator capable of enhancing thermal discharging efficiency of condensator

Abstract

A direct-cooling type refrigerator for promoting the heat release efficiency of a condenser comprises: a refrigerator shell body formed with cooling spaces, an evaporator used for cooling the cooling spaces, a compressor used for compressing refrigerant supplied by the evaporator, a condenser that is formed along with the rear of the refrigerator shell body and used for condensing the refrigerant compressed by the compressor and a heating pipe that is formed at an extending part of the condenser and used for releasing the heat of the condenser, wherein, an opposite face of a face, which is contacted with the shell body, of the condenser is in face contact with an end part of the heating pipe. The invention can effectively emit the heat hidden in the condenser at a heat insulation part of the refrigerator shell body to promote the heat releasing efficiency and reduce the matching pipe length of the condenser, so as to reduce the filling amount of the refrigerant needed during the freezing circulation and reduce the noise caused by the high temperature refrigerant that flows into the evaporator for operation stopping of the compressor, besides, the invention can shorten the time needed for reaching the condensing pressure required by the condensing effect of the condenser, so as to carry out circulation operation of the refrigerator quietly and rapidly and to promote the energy efficiency.

Description

technical field [0001] The invention relates to a direct-cooling refrigerator which improves the heat release efficiency of the condenser. Background technique [0002] Generally, in a direct-cooling refrigerator, the evaporator is formed in close contact with the refrigerating compartment or the freezing compartment, or the placing plate of the refrigerating compartment or the freezing compartment itself forms the evaporator, and directly cools the refrigerating compartment or the freezing compartment. Recently, indirect-cooling refrigerators in which cold air is injected into a refrigerator compartment and a freezer compartment are frequently used. The direct cooling refrigerator does not generate a large amount of cold air, but directly supplies the cold air from the evaporator to the refrigerator compartment or the freezer compartment through the natural convection phenomenon of the cooled air around the evaporator. [0003] As shown in FIG. 1 and FIG. 2 , the above-men...

AI Technical Summary

Problems solved by technology

Therefore, in order to dissipate the heat generated in the direct cooling condenser 40, it is necessary to install refrigerant piping having a sufficiently large heat radiation area or a sufficiently long length, resulting in an unnecessary increase in the amount of refrigerant piping used to fill the condenser 40. Refrigerant charge

[0005] Moreover, when the operating compressor 30 stops working, the amount of high-temperature refrigerant flowing into the evaporator increases under the action of the pressure difference, which will disturb the liquid refrigerant in the liquid refrigerant storage at the outlet of the evaporator and cause noise.

In addition, when the refrigerant piping of the condenser 40 is long, when the compressor 30 is started, the time required to increase the pressure of the condenser 40 to the level required for the condensation operation will be longer, resulting in a decrease in the refrigeration cycle. s efficiency

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