Unfreezing device, unfreezing method and refrigerator

Abstract

The invention provides an unfreezing device, an unfreezing method and a refrigerator. The unfreezing device comprises a cavity, a coupling window and a high-frequency generator, wherein the coupling window is arranged on the side wall of the cavity, the high-frequency generator is used for generating high-frequency waves, the high-frequency waves enter the cavity via the coupling window, and then multiple wave beams are emitted and irradiated to food to be unfrozen in the cavity so that the food can be unfrozen. According to the unfreezing device provided by the invention, all molecules of the unfrozen food bear the high-frequency waves, the polarity of polar molecules is changed at a high frequency, accordingly, the interior and the exterior of the unfrozen food are heated and unfrozen simultaneously, the temperature of the unfrozen food is uniform, the unfreezing speed is high, and the possibility of pollution caused by microorganisms is reduced. Meanwhile, the food to be unfrozen is dissolved fast through a largest ice crystal dissolution belt, the drop liquid loss is reduced, the loss of nutrients of the unfrozen food is effectively prevented, the quality of the unfrozen food is ensured, and large food can also be unfrozen, so that user experience is improved.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a thawing device, a thawing method and a refrigerator. Background technique [0002] Currently, since the frozen food in the refrigerator cannot be eaten directly, it needs to be thawed before cooking the frozen food. From the perspective of heat transfer, thawing can be divided into two categories: thawing from the outside to the inside and simultaneous thawing from the inside and outside. The thawing from the outside to the inside is also called the external heating method. The heat is transferred from the higher temperature medium to the surface of the frozen product, and the heat is gradually transferred from the surface to the center. The thawing method of outside and inside; thawing inside and outside at the same time is also called the internal heating method, which heats all parts of the frozen product at the same time, microwave thawing, food power-on thawing, etc. b...

AI Technical Summary

Problems solved by technology

[0003] At present, most users use normal temperature water, hot water, or normal temperature air to thaw, which takes a long time to thaw, and is limited by external factors such as ambient temperature and seasons, so the thawing effect is not good; or microwave thawing is used for thawing. Inhomogeneity, partial discoloration of food, or even ripening phenomenon, the actual application of microwave thawing is not much, therefore, the daily activity of thawing has become a major pain point for users

[0004] The thawing device in the related art is composed of a thawing chamber, a fan, and an electric heater. The thawing method is relatively cumbersome, and water pipes, electromagnetic valves, pumps, etc. need to be installed, and the structure is complicated; there are also far-infrared radiation sources used to thaw food from the outside to the inside. , and through the vibrating device to vibrate the food to generate heat to achieve thawing, to achieve thawing through the heating of food resistance, and to control the heating of food through microwaves to achieve thawing, but the thawing effect of these thawing devices is not good, and there are the following defects:

[0005] 1. It takes a long time to thaw, which makes the thawed food susceptible to microbial contamination, and the quality of the thawed food decreases;

[0006] 2. The thawing is not uniform, so that the thawed food will be partially discolored or even cooked;

[0007] 3. The thawed food has a lot of juice loss and a large loss of nutrition;

[0008] 4. Restricted by external factors such as ambient temperature and season;

[0009] 5. The temperature of the thawing chamber changes greatly and consumes a lot of energy

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