Control system and control method of condenser fan for refrigerator

Abstract

The invention provides a control system of a condenser fan for a refrigerator. The control system comprises a condenser and the condenser fan, which are both mounted in a compressor cabin of the refrigerator; the condenser fan is arranged adjacent to the condenser; furthermore, an air outlet of the condenser fan faces the condenser; a controller for controlling the work of the condenser fan and a temperature sensor for detecting an ambient temperature are also arranged in the refrigerator; and the temperature sensor is electrically connected with the controller. According to the control system, the controller and the temperature sensor are adopted and added; the temperature sensor collects the ambient temperature outside the refrigerator and feeds the ambient temperature back to the controller; and then, the controller controls the work of the condenser fan through receiving an ambient temperature signal detected by the temperature sensor; the condenser fan can run at different rotational speeds according to different signals, and is started or stopped; and the cooling speed of the refrigerator at different ambient temperatures is quickened, so that the annual energy consumption of the refrigerator is reduced.

Description

technical field [0001] The invention relates to a household appliance refrigerator, in particular to a refrigerator condenser fan control system and a method thereof. Background technique [0002] At present, the condensers of air-cooled refrigerators are generally divided into built-in type and external type, while the traditional external type refrigerator condenser is generally forced to ventilate through the condenser fan to accelerate the condensation of the gaseous refrigerant in the condenser into a liquid state. The control method is generally as follows : When the temperature in the refrigerator box rises and reaches the condition for starting the compressor, the compressor will be energized to run, and the condenser fan will be energized to start at the same time. However, since the heat dissipation of the external condenser has a great relationship with the ambient temperature, the control method of synchronous start and stop of the condenser fan and the compress...

AI Technical Summary

Problems solved by technology

However, since the heat dissipation of the external condenser has a great relationship with the ambient temperature, the control method of synchronous start and stop of the condenser fan and the compressor has two disadvantages: first, it will increase the energy consumption of the refrigerator throughout the year, and second, In high ambient temperatures, the refrigerator cools slowly

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