Air opening assembly, refrigerator and temperature control method

Abstract

The invention provides an air opening assembly, a refrigerator and a temperature control method. The air opening assembly comprises an air deflector mechanism, a drive device, an infrared temperature sensor and a control unit. The air deflector mechanism is provided with at least one air deflector. The drive device is used for driving at least one air deflector to rotate to the stop position from the start position in the manner that the air deflectors rotate by the preset angle every time. The infrared temperature sensor measures the temperature of the angles where the air deflectors are located every time the air deflectors rotate by the preset angle, and every temperature and every angle are correspondingly stored. The control unit determines the abnormal temperature according to the stored multiple temperatures, determines the abnormal angle corresponding to the abnormal temperature and controls the air deflectors to rotate to the abnormal angle so as to discharge air to the abnormal angle for cooling. By means of the technical scheme, the position of a heat source can be sensed, the heat source can be directly aligned to be cooled, the cooling speed is high, an air opening can rotate and can cover the whole area, the food preservation function is enhanced, electric energy is saved, and the control reliability of the refrigerator temperature is improved.

Description

technical field [0001] The present invention relates to a temperature control technology, in particular, to a tuyere assembly, a refrigerator and a temperature control method. Background technique [0002] At present, the air ducts of refrigerators on the market are fixed and fixed. No matter where the food is placed in the compartment, the air duct is used to cool the entire compartment through the free diffusion and air flow after the cold air is blown out. However, this cooling method will cause uneven storage temperature of items for a refrigerator with a large box width. For the heat source items put in, only the whole compartment can be cooled down, which will cause local overcooling, local overheating, and poor temperature uniformity. In addition, if the item is blocked in front of the air vent, the air outlet is blocked by a short distance, which will seriously affect the refrigeration of other parts of the refrigerator, and will also freeze local items. [0003] l...

AI Technical Summary

Problems solved by technology

However, this cooling method will cause uneven storage temperature for refrigerators with a large cabinet width.

For the heat source items put in, only the entire room can be cooled, which will cause local overcooling, local overheating, and poor temperature uniformity

In addition, if the items are blocked in front of the air outlet, the air outlet will be blocked by a short distance, which will seriously affect the cooling of other parts of the refrigerator, and will also freeze some items

[0003] like figure 1 As shown, the schematic diagram of the air duct and blowing path in the related art: wherein, the position of the temperature sensing head 16' of the refrigerator is fixed, resulting in a fixed air outlet direction of the tuyere 12', and a heat source item is suddenly placed away from the position of the temperature sensing head 16' 18', the temperature sensor head 16' of the refrigerator fails to detect the temperature change immediately, so the air duct 1' will not start to cool down immediately, and the temperature in the surrounding low temperature area will rise, which will affect the food preservation in the item placement area 14'; while the temperature sensor head When the heat source item 18' is placed at the position of 16', the temperature sensor head 16' of the refrigerator will immediately detect the temperature change, which will cause the air duct 1' to immediately start to cool down, causing the temperature in other places in the item placement area 14' to continue to drop and become too cold, which will also affect Food storage is a waste of electricity; for a refrigerator with a large width, the fixed air outlet will affect the temperature uniformity of the compartment; in actual use, when the user places an item close to the air outlet, it will cause local items to be overcooled, and other locations The temperature of the item drops slowly, resulting in very uneven temperature; the air outlet is fixed, and the temperature of the entire room is cooled. For the heat source that is placed suddenly, the wind is not concentrated, and the cooling speed is slow.

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