Defrosting device and refrigerator including same

Abstract

The invention provides a defrosting device. The defrosting device comprises a metal cylinder body, a radio frequency generator module, a radio frequency antenna, and a detection module, wherein the metal cylinder body is provided with a defrosting chamber with a forward opening in a qualified mode, the radio frequency generator module is used for generating a radio frequency signal, the radio frequency antenna is electrically connected with the radio frequency generator module and can generate radio frequency waves with corresponding frequency in the defrosting chamber according to the radio frequency signal, and the detection module is used for detecting an incident wave signal and a reflected wave signal of the radio frequency antenna; the detection module is configured to calculate therate of change of a dielectric coefficient of a to-be-processed material according to the voltage and current of the incident wave signal and the voltage and current of the reflected wave signal to determine the defrosting progress of the to-be-processed material; the defrosting device further comprises a baffle arranged in conductive connection with the inner wall of the defrosting chamber; and the detection module is arranged in a shielding chamber enclosed by the inner wall of the baffle and the defrosting chamber, interference of the radio frequency waves generated by the radio frequency antenna to the detection module can be effectively avoided, and the accuracy of the incident wave signal and the reflected wave signal detected by the detection module is improved.

Description

technical field [0001] The invention relates to the field of food thawing, in particular to a thawing device and a refrigerator with the thawing device. Background technique [0002] During the freezing process of food, the quality of food is maintained, but frozen food needs to be thawed before processing or consumption. In order to facilitate users to freeze and thaw food, in the prior art, a heating device or a microwave device is generally provided in the refrigerator to thaw the food. [0003] However, thawing food through a heating device generally requires a long thawing time, and the thawing time and temperature are not easy to control, which will easily cause water evaporation and juice loss in the food, resulting in loss of food quality; It is fast and efficient, so the loss of nutrients in food is very low. However, due to the difference in the penetration and absorption of water and ice by microwaves, and the uneven distribution of internal substances in food, t...

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Problems solved by technology

[0003] However, thawing food through a heating device generally requires a long thawing time, and the thawing time and temperature are not easy to control, which will easily cause moisture evaporation and juice loss in the food, resulting in loss of food quality; It is fast and efficient, so the loss of nutrients in food is very low, but due to the difference in the penetration and absorption of water and ice by microwaves, and the uneven distribution of internal substances in food, the melted area absorbs more energy and is prone to thawing Problems with uneven and localized overheating

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