Control method and control device of dual-refrigeration system refrigerator and dual-refrigeration system refrigerator

Abstract

The invention provides a control method and control device of a dual-refrigeration system refrigerator and the dual-refrigeration system refrigerator. The control method of the dual-refrigeration system refrigerator comprises the following steps: when the compressor of the refrigerator is started, determining the initial rotating speed of the compressor; judging whether a cold storage module and a freezing module of the refrigerator run simultaneously; if yes, detecting tube temperature of a cold storage evaporator and a freezing evaporator of the refrigerator; and controlling and adjusting the rotating speed of the compressor according to the tube temperature of the cold storage evaporator, and controlling and adjusting the on-off state of a freezing draught fan of the refrigerator according to the tube temperature of freezing evaporator. According to the technical scheme, the refrigerating capacity of the compressor is matched with the thermal load of a system to improve the operating efficiency of the compressor, so that the operating efficiency of the refrigerator refrigerating system is improved, energy consumption is reduced, and electric energy is saved.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a control method for a refrigerator with dual refrigeration systems, a control device for a refrigerator with dual refrigeration systems, and a refrigerator with dual refrigeration systems. Background technique [0002] With the increasing volume of refrigerators and the improvement of consumers' requirements for refrigerator performance, dual-system refrigerators have gradually become the darling of the market. At present, the refrigeration systems used by common dual-system refrigerators on the market can be divided into three types: dual systems, parallel systems and dual-compressor systems. The most common type is dual systems. The actual operation process can be divided into refrigeration modules and freezing modules. Simultaneous operation Operates independently of the freezer module. However, the inventor found in the practice of the present invention that in...

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Problems solved by technology

However, the inventor found in the practice of the present invention that in the actual application process, especially when used with an inverter compressor, at least the following problems occurred: the heat load of the refrigerator when the refrigeration module and the freezing module are running at the same time and the freezing module is running alone different, but the speed of the compressor is only related to the ambient temperature and gear, which leads to the mismatch between the heat load of the refrigerator and the cooling capacity of the refrigeration system, resulting in low system operation efficiency and waste of electric energy

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