Refrigerator

Abstract

When using refrigerator running effectively and produces heat is discharged into the external and external of the heat, reduce the required power and defrosting defrosting time. A refrigerator (1) is provided with a cold chamber (2), freezing chambers (4, 5), a cooler (12) which can generate cool air for cooling the cold chamber and the freezing chambers, and refrigeration cycle of a compressor (24). The invention also includes a fan (9) in the refrigerator for transferring cooling air to at least any one of the cold chamber and freezing chambers, an electric heater (22) which is configured below the cooler, the air whose temperature arises through circulation in the cold chamber, antifreeze solution which saves the heat generated by the compressor or the outside air, and a control unit (66) which controls a circulating pump (51) which makes the fan in the refrigerator or the antifreeze solution to circulate. During the process of defrost operation, the control unit utilizes the heat from the circulated air in the cold chamber or the compressor or the outer air to heat the cooler besides using the heater to heat the cooler.

Description

technical field [0001] The present invention relates to a refrigerator, and more particularly to a defrosting operation of the refrigerator. Background technique [0002] An example of a conventional refrigerator is described in Patent Document 1. In the refrigerator described in this gazette, the heat absorber connected to the cooler by piping is installed in a non-freezing area (for example, a refrigerator room, a vegetable room, or a machine room). In addition, at the time of defrosting, the antifreeze solution filled in the heat absorber is circulated by a circulation pump, and is utilized as a heat source of the cooler. This reduces power consumption during defrosting. In addition, by using the heat source stored in the heat absorber, the electric heater (defrosting heater) generally used is omitted. Thereby, it is possible to implement defrosting with reduced power consumption compared with the prior art, without temporarily increasing the temperature inside the box...

AI Technical Summary

Problems solved by technology

However, since the refrigerator described in this publication has the same basic structure as the refrigerator described in the above-mentioned Patent Document 1, a large tank may be required as described above, or the defrosting time may become longer.

[0014] In addition, in the refrigerator described in Patent Document 3, the air around the evaporator is heated by natural convection to melt the frost, which does not necessarily promote heat transfer and may take a long time for defrosting.

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