Refrigerator heat dissipation mechanism based on infrared distance measuring and control method of refrigerator heat dissipation mechanism

Abstract

The invention provides a refrigerator heat dissipation mechanism based on infrared distance measuring and a control method. Infrared sensors are used for obtaining the distance between the back of a refrigerator body and a wall and the distance between the two side portions of the refrigerator body and the wall, the heat dissipation environment where a refrigerator is located can be recognized, the rotation speed of a fan is adjusted according to the heat dissipation environment where the refrigerator is located, and the situation that the fan works at the fixed rotation speed is avoided; and energy consumption and noise of the heat dissipation mechanism are reduced, and the intelligent level and practicability of the heat dissipation mechanism are improved.

Description

technical field [0001] The invention belongs to the technical field of heat dissipation of refrigerators, and in particular relates to a heat dissipation mechanism and a control method of a refrigerator based on infrared distance measurement. Background technique [0002] Existing refrigerators all adopt radiators to dissipate heat. For example, the Chinese utility model patent CN2639814Y discloses a cooling mechanism for refrigerators. There is an electric fan on one side to speed up the heat dissipation of the radiator. The electric fan of this cooling mechanism works with one or more fixed powers and rotating speeds, and the rotating speed of the fan cannot be adjusted according to the specific installation environment and the size of the cooling space. Although the fan itself can improve the heat dissipation effect, it will bring relatively large noise, consume power, increase the power supply load of the refrigerator, and the motor of the fan itself will also dissipate...

AI Technical Summary

Problems solved by technology

But just measuring the distance from the back of the refrigerator to the wall is not enough

In the actual installation process, users often install the refrigerator at the corner of the wall, resulting in a relatively close distance between the side of the refrigerator and the wall. In addition, the refrigerator may also be installed next to furniture such as cabinets and lockers. The existence of obstacles hinders the heat dissipation of the refrigerator, and the radiator fan of the refrigerator in the prior art operates according to the predetermined power, which cannot be adjusted according to the actual heat dissipation conditions. The designers of the current heat dissipation mechanism of the refrigerator do not realize Different installation environments of refrigerators have different requirements on the heat dissipation power of the heat dissipation mechanism

Some refrigerator radiators adjust the fan speed according to the temperature feedback of the heat dissipation mechanism, but this speed control has a hysteresis. If the speed is increased after the temperature has risen significantly, it will affect the performance of the refrigerator.

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