Refrigerator refrigeration control method

Abstract

The invention discloses a refrigerator refrigeration control method, and relates to the technical field of refrigerators. The refrigerator refrigeration control method comprises the steps that S1, a first supercooling threshold value of a refrigerating chamber is set to be delta r1, a second supercooling threshold value of the refrigerating chamber is set to be delta r2, and a third supercooling threshold value of the refrigerating chamber is set to be delta r'; a first overheating threshold value of a freezing chamber is set to be delta f, and a second overheating threshold value of the freezing chamber is set to be delta f'; S2, whether a compressor is in a starting state or not is detected, in the starting state, real-time temperature values Tr_air, Tr_cut out-delta r1 and Tr_cut out-delta r2 of the refrigerating chamber are compared with real-time temperature values Tf_air and Tf_cut out + delta f of the freezing chamber; and when the compressor is shut down, the main and auxiliary sequence of compressor control is determined by comparing the Tr_air with the Tr_cut out-delta r' and comparing the Tf_air with the Tf_cut in + delta f' in the step 3. According to the refrigerator refrigeration control method, the first supercooling threshold value of the refrigerating chamber is set to be delta r1, the second supercooling threshold value of the refrigerating chamber is set to be delta r2, the third supercooling threshold value of the refrigerating chamber is set to be delta r', so that multivariable parallel control of the compressor is adjusted to be mainly controlled by the refrigerating chamber and secondarily controlled by the freezing chamber, and the problems that an existing refrigerating chamber is prone to excessive refrigeration and food is frozen to be damaged are solved.

Description

technical field [0001] The invention belongs to the technical field of refrigerators, and in particular relates to a refrigerator refrigeration control method. Background technique [0002] At present, the control method of the compressor of the refrigerating and freezing refrigerator is generally as follows: when any room of the refrigerating room or the freezing room has a cooling demand, the compressor is turned on, and the refrigeration system starts to work to provide cooling capacity. When the cooling demands of both the refrigerator and the freezer are met, that is, at the shutdown point temperature, the compressor is turned off and the refrigeration system stops working. [0003] Since the shutdown condition of the compressor involves two or more variables of refrigeration temperature and freezing temperature, it is difficult to achieve multiple variables meeting the preset conditions at the same time. Therefore, damper switches are generally used to distribute the c...

AI Technical Summary

Problems solved by technology

[0004] However, in the actual application process, the damper or electromagnetic valve often fails, which leads to uncontrolled refrigeration in the refrigerator, excessive cooling, and frozen food.

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