Rotation speed control method for fan of air-cooling refrigerator

Abstract

The invention discloses a rotation speed control method for a fan of an air-cooling refrigerator and relates to the technical field of rotation speed control for fans of air-cooling refrigerators. Therefrigeration fan, a control unit and a compressor running parameter collection module are included; the control unit is electrically connected with the compressor running parameter collection moduleand the refrigeration fan; the compressor running parameter collection module is electrically connected with a compressor; and the control unit is used for dynamically adjusting the rotation speed ofthe refrigeration fan according to changes of the compressor running power. By controlling the rotation speed of the compressor to be unchanged, the rotation speed of the refrigeration fan is adjusted to make the overall energy consumption be minimum. The running power of the compressor is obtained as reference power Pc, the reference rotation speed Vf of the refrigeration fan is obtained, and the controller adjusts the rotation speed of the refrigeration fan according to the current compressor rotation speed and the ratio of the actual running power to the corresponding reference power. Therefrigeration fan rotation speed adjusting method is simple, various conditions such as environment temperature, set temperature and temperature difference do not need to be judged, energy consumptionis saved, and overall noise of the refrigerator is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of speed control of a fan of an air-cooled refrigerator, and in particular relates to a method for controlling the speed of a fan of an air-cooled refrigerator. Background technique [0002] The air-cooled refrigerator uses a cooling fan to operate, bringing the cold air in the evaporator room into different rooms for heat exchange, so as to achieve the purpose of cooling. The evaporator chamber of the air-cooled refrigerator can be automatically heated and defrosted, so it is also called a frost-free refrigerator. Because the air-cooled refrigerator has the characteristics of not needing to defrost, it is more and more popular among consumers. At present, in order to meet the cooling demand under high-load conditions, air-cooled refrigerators generally have a high speed design of the cooling fan. When the load is low, it will cause many problems such as high energy consumption and high noise of the refrige...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a fan speed control method for air-cooled refrigerators. The control unit adjusts the speed of the refrigeration fan according to the ratio of the actual operating power of the current compressor speed to the corresponding reference power, which solves the problem of the air-cooled motor of the existing air-cooled refrigerator. Problems such as complex adjustment, delay in fan speed adjustment, and energy waste of the whole machine

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