Method for controlling gas adjusting system of fresh-keeping refrigerator

Abstract

The invention relates to a system control method for a refrigerator, in particular to a method for controlling a gas adjusting system of a fresh-keeping refrigerator. The method comprises the following steps that: when oxygen concentration sensors in storage chambers sense that the oxygen concentration in one or more of the storage chambers is greater than a set value, the oxygen concentration sensors transmit signals to a controller; the controller controls a compression pump to work according to the signals transmitted by the oxygen concentration sensors, and controls a gas distribution device to be communicated to the storage chambers in which fresh-keeping gas is needed to be supplemented; and when the oxygen concentration sensors sense that the oxygen concentration in all the storage chambers is equal to or smaller than the set value, the oxygen concentration sensors transmit signals to the controller, and the controller controls the compression pump to stop working. By the method for controlling the gas adjusting system of the fresh-keeping refrigerator, requirements of different foods with different fresh-keeping gas adjusting parameters can be met, the best fresh-keeping effects on different foods are achieved, each closed storage chamber is independently controlled, and gas in the storage chamber can be independently replaced; and the method has the advantages that the fresh-keeping time is prolonged, fresh-keeping quality is upgraded, energy consumption is reduced, and cross-contamination of the foods is reduced.

Description

technical field [0001] The invention relates to a system control method of a refrigerator, in particular to an air conditioning system control method of a fresh-keeping refrigerator. Background technique [0002] At present, refrigerators (freezers) used in households or shopping malls to keep food fresh mainly use cooling technology to create a low-temperature fresh-keeping environment in the refrigerator or freezer to keep food fresh. Generally speaking, the lower the temperature, the longer the fresh-keeping time. long. But there are many deficiencies in this existing fresh-keeping mode. On the one hand, the longer the fresh-keeping time is, the lower the required temperature will be, thus wasting energy; All kinds of smelly gases and organic gases that come out stay in the fresh-keeping environment for a long time and cannot be replaced, which not only causes cross-contamination of food, but also shortens the fresh-keeping time. [0003] Chinese Invention Patent Appli...

AI Technical Summary

Problems solved by technology

However, a plurality of refrigerating chambers of this fresh-keeping refrigerator are connected to each other, and its air-conditioning system is ventilated through the same air inlet and the same air outlet. The oxygen content in the refrigerator rises, and after the refrigerator door is closed, it is necessary to reduce the oxygen in all the refrigerators, which consumes more energy. In addition, the interconnection of the refrigerators cannot meet the requirements of different food for different parameters of air-conditioning freshness preservation or temperature control. At the same time, the odor, moisture and organic gas generated by the food in the refrigerator are not removed during the circulation process, and the circulation back to the refrigerator will pollute the food

Images