Temperature controller for refrigerator

Abstract

The invention provides a temperature controller for a refrigerator. The temperature controller for the refrigerator comprises a temperature sensor which is arranged in the refrigerator and connected with a sampling maintaining circuit, wherein the sampling maintaining circuit is connected with an analog-digital conversion and display circuit, a temperature control comparator, a register and a counter; the temperature control comparator is connected with an upper limit control circuit and a lower limit control circuit; the temperature controller is connected with an execution circuit. According to the temperature controller for the refrigerator, a standard model can be built, and the nonlinearity in the temperature detecting process can be compensated and modified, thus achieving accurate temperature control.

Description

technical field [0001] The invention belongs to the technical field of household appliance accessories, in particular to a temperature controller for a refrigerator. Background technique [0002] At present, with the development of integrated circuit technology, the functions of single-chip microcomputers are also continuously enhanced, and many high-performance new models continue to emerge. With its strong function, small size, high reliability, low cost and short development cycle, the single-chip microcomputer is called a device widely used in automation and various measurement and control fields, and is called an indispensable device in industrial production, especially in daily life. The role played in life is also increasing. People have higher and higher control functions for household refrigerators, which put forward higher requirements for refrigerator controllers. Multifunctional and intelligent are one of its development directions. Traditional machine control ...

AI Technical Summary

Problems solved by technology

The temperature of traditional refrigerators is generally controlled by the refrigerating room. The different temperatures of the refrigerating room and the freezing room are realized by adjusting the area of ​​the evaporator in the two rooms. The temperature adjustment is completely controlled by the start and stop of the compressor. The temperature of the refrigerator is affected by many factors, such as the initial temperature of the items in the refrigerator, the heat dissipation characteristics and heat capacity of the stored items, the full rate of the items in the refrigerator, the ambient temperature, and the frequency of opening the door. Therefore, this controlled For temperature control with many parameters and random factors, it is difficult to establish a standard mathematical model, nor can it be realized by traditional adjustment methods.

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