Unfreezing device and refrigerator

Abstract

The invention provides an unfreezing device and a refrigerator. The unfreezing device comprises an unfreezing device body and a high-frequency generator, wherein the unfreezing device body is provided with a cavity which is used for allowing foods to be unfrozen to be placed; and the high-frequency generator comprises one or more pairs of electrode plate assemblies arranged in the cavity. High-frequency waves generated by the electrode plate assemblies act on the foods to be unfrozen, so that all the molecules of the foods to be unfrozen are in the action of the high-frequency waves, the polarity of the polar molecules is subjected to high-frequency changes, the inside and the outside of the unfrozen foods are heated and unfrozen at the same time, the temperature of the unfrozen foods is uniform, the unfreezing speed is high, and the possibility of microbial contamination is reduced; besides, the foods to be unfrozen are quickly dissolved through a largest ice crystal dissolving band, so that the loss of dropping liquid is reduced, the nutrient loss of the unfrozen foods is effectively avoided, and the quality of the unfrozen foods is promoted; and besides, large foods can be unfrozen, and the user experience can be promoted.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a thawing device 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. belong to the simul...

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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