Refrigerator capable of continuously cooling

Abstract

A refrigerator able to continuously refrigerate is composed of casing, cold air channel, two evaporators with own cold channels, the barrier for selectively cutting off one of their cold channels, fan for forcing circulation of cold air, and the defrosting heaters (one for each evaporator). When the cold air channel of an evaporator is cut off and the evaporator is defrosted, the other evaporator still works for refrigerating, so resulting in high refrigerating efficiency.

Description

1. Technical field: [0001] The invention relates to a refrigerator, in particular to a refrigerator in which a freezing device can continue to operate and keep cooling when evaporation and frosting are eliminated. 2. Background technology: [0002] As a refrigeration machine, a refrigerator keeps the temperature inside the refrigerator through repeated cycles of compression, condensation, expansion, and evaporation of the refrigerant, and keeps the food in the box fresh for a certain period of time. The refrigeration cycle system of a refrigerator is mainly composed of a compressor, a condenser, an expansion valve and an evaporator; the compressor compresses the low-temperature and low-pressure refrigerant gas into a high-temperature, high-pressure refrigerant gas and pounds it into the condenser, which is condensed due to the action of external air The liquid refrigerant is decompressed by the expansion valve and evaporates in the evaporator under low pressure, thereby real...

AI Technical Summary

Problems solved by technology

[0006] However, during the above-mentioned defrosting operation period, the refrigerating cycle system does not operate, the compressor and the blower fan 6 do not operate, the circulation of the cold air will be temporarily interrupted, the temperature inside the refrigerator will rise accordingly, and the preservation of food will not be guaranteed.

Not only that, due to the heat dissipation of the defrosting heater, the temperature of the refrigerator rises, and the cooling load at the initial stage of the subsequent refrigeration cycle operation increases, and the cooling effect decreases accordingly.

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