Defrosting method of microwave oven

Abstract

The invention relates to a defrosting method of a microwave oven. The method is characterized by: detecting a initial lowest temperature of a food through a temperature sensor before starting each corresponding power level, simultaneously determining a base operation power and a corresponding power level; continuously adjusting execution power of a magnetron according to a difference between a lowest temperature at current time and the initial lowest temperature during a process of food defrosting through the magnetron, such that the power of the magnetron is continuously changed instantaneously according to a actual condition of the defrosted food; reducing the difference between the food surface and the food interior through promptly changing a plurality of power levels; promptly switching the power of the magnetron, such that the excess defrosting of the food is avoided.

Description

technical field [0001] The invention belongs to the technical field of microwave ovens, and specifically relates to a method of measuring the temperature of objects to be thawed at multiple points through multiple sampling points, and using the difference between the measured initial minimum temperature and the current temperature and the initial temperature to obtain the execution power constant, thereby The microwave oven thawing method that can switch the power gear according to the situation to ensure that the object can get the best thawing effect. technical background [0002] A microwave oven is a device in which a magnetron generates microwaves after the power is turned on, and irradiates these microwaves on food and other heated objects to cook food. Such microwave ovens are classified into domestic microwave ovens equipped with small magnetrons and commercial microwave ovens equipped with large or multiple magnetrons. Microwave ovens can also be divided into house...

AI Technical Summary

Problems solved by technology

Change the power level of the microwave oven by judging the instantaneous minimum temperature. In the actual thawing process, since each point on the object to be thawed is heated to a different degree during the thawing process, the temperature distribution of each point is also uneven. According to the instantaneous minimum temperature When controlling the firepower, it is prone to the problem of frequent switching between high fire gear and low fire gear, resulting in over-thawing of the objects to be thawed on the tray

The temperature sensor in the microwave oven always senses the temperature when the magnetron is working, so it is often affected by microwave noise, which is prone to wrong judgment and response, which affects the thawing effect of food

In addition, due to the different meat quality of different meats, the heating effects are also different, which further complicates the thawing process.

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