Variable-frequency energy-saving mute refrigerator

Abstract

The invention relates to the field of refrigerators, in particular to a variable-frequency energy-saving mute refrigerator. A variable-frequency power supply is input to a compressor through a variable-frequency main control device, rotating speed of the compressor is automatically adjusted according to the temperature in a box body and actual conditions of all device parameters, and therefore a whole variable-frequency refrigerating system can save electricity by 30% or above compared with the prior art. A variable-speed evaporator fan can be controlled by the variable-frequency main controldevice, the evaporator fan operates at a low speed to preserve heat in the constant-temperature process in a cabinet, and external hot air is not easily sucked into the cabinet due to low-speed operation of the fan when the cabinet door of the refrigerator is opened, so that the energy consumption is reduced, and the system is not prone to frosting. A sound insulation box wrapping the compressor is arranged in a refrigerating machine bin, and the sound insulation box can greatly reduce noise generated when the refrigerator works; and during operation, a user does not feel loud, and the advantages are obvious compared with similar products.

Description

technical field [0001] The invention relates to the field of refrigerators, in particular to a frequency conversion energy-saving mute refrigerator. Background technique [0002] The existing freezers on the market consume a lot of power, and the cooling method is not flexible; when the temperature controller is adjusted to refrigerate food, the cooling capacity per unit time at the same temperature is too large; Insufficient volume, slow temperature drop, and high freezing temperature; this will cause the compressor to work for a long time and shorten the life of the compressor; and the existing freezer has a large input power, large noise, and poor adjustment accuracy, so it is impossible to accurately set the temperature in the box. Moreover, the temperature of the freezer is usually below -20°C. Every time the freezer door is opened, the high-speed operation of the evaporator fan will draw the external hot air into the cabinet, causing the temperature of the freezer to r...

AI Technical Summary

Problems solved by technology

[0002] The existing freezers on the market consume a lot of power, and the cooling method is not flexible; when the temperature controller is adjusted to refrigerate food, the cooling capacity per unit time at the same temperature is too large; Insufficient volume, slow temperature drop, and high freezing temperature; this will cause the compressor to work for a long time and shorten the life of the compressor; and the existing freezer has a large input power, large noise, and poor adjustment accuracy, so it is impossible to accurately set the temperature in the box. Moreover, the temperature of the freezer is usually below -20°C. Every time the freezer door is opened, the high-speed operation of the evaporator fan will draw the external hot air into the cabinet, causing the temperature of the freezer to rise rapidly, resulting in power consumption and easy breakdown. Frost affects the quality of food preservation

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