Refrigerator control method and system with linear compressor

Abstract

The invention discloses a refrigerator control method and system with a linear compressor. The control method comprises the steps that the temperature T of the environment where a refrigerator is located is monitored; the environment temperature T and the preset environment temperature threshold value T0 are compared; if T is larger than T0, the refrigerator is made to run under the first work condition by controlling a refrigerating and / or heating assembly in the refrigerator; if T is smaller than or equal to T0, the refrigerator is made to run under the second work condition by controlling the refrigerating and / or heating assembly in the refrigerator; and when the linear compressor runs within a preset time, the refrigerating amount of the linear compressor under the second work condition is controlled to be larger than the refrigerating amount of the linear compressor under the first work condition, and a chamber of the refrigerator reaches the target temperature. The running work conditions of the linear compressor are controlled by the refrigerating and / or heating assembly in the refrigerator so as to increase the stroke of a piston in the linear compressor, and it is avoided that due to the fact that the linear compressor is protected by a frequency conversion plate, the refrigerator cannot work normally.

Description

technical field [0001] The invention relates to the technical field of refrigerators and linear compressors, in particular to a control method and a control system for a refrigerator using a linear compressor. Background technique [0002] The compressor is a driven fluid machine that lifts low-pressure gas into high-pressure gas, and is the heart of the refrigeration system. It inhales low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle, thereby realizing compression → condensation (heat release ) → Expansion → Evaporation (endothermic) refrigeration cycle. [0003] Linear compressors are widely used in small refrigeration capacity fields such as refrigerators. They have the advantages of simple structure, less friction loss, low noise, and can easily adjus...

AI Technical Summary

Problems solved by technology

[0005] When the refrigerator works at a low temperature, the heat load of the refrigerator is low, and the cooling capacity required by the compartment will be relatively low. At this time, the linear compressor will run at a low output power, resulting in a small stroke of the piston of the linear compressor. Hidden danger of hitting the exhaust valve plate

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