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Air conditioner defrosting control method and device and air conditioner

A technology of a control device and a control method, which is applied to heating methods, details of space heating and ventilation, and household heating, etc., can solve the problems of decreased heating effect of air conditioners, inability to defrost air conditioners, and affecting defrosting effects of heat exchangers. , to achieve the effect of improving the heating effect and increasing the use effect

Inactive Publication Date: 2020-03-17
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned air-conditioning system improves the defrosting effect on the basis of heating during defrosting; however, it also has certain limitations, that is, the outdoor and side heat exchangers in the patent are vertically distributed, and when one of the heat exchangers needs to When defrosting, the other heat exchanger is also used for heating, so in order to ensure the heating capacity of the other heat exchanger, it is necessary to run the external fan, but the operation of the external fan will greatly affect the defrosting effect of the defrosting heat exchanger , and even make the air conditioner unable to defrost below zero
That is to say, when the outer ring of defrosting is below zero, the operation of the external fan will make the defrosting heat exchanger defrosting and frosting at the same time, and this cycle makes the heating effect of the air conditioner decrease instead

Method used

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  • Air conditioner defrosting control method and device and air conditioner

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Experimental program
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Effect test

Embodiment 1

[0019] Embodiment 1: An air conditioner defrosting control device.

[0020] A defrosting control device for an air conditioner, comprising two air blocking devices, the two air blocking devices are respectively arranged on the two external fans of the external unit of the air conditioner, and the air blocking device is used to block the outdoor air conditioner during defrosting of the external unit. The heat exchanger and the air blocking device include a motor 1, a scrolling shaft 2, a canvas 4, a guide rail 3 and a guide block 5. The motor 1 drives the scrolling shaft 2 to rotate counterclockwise, thereby driving the canvas 4 to rise and fall through friction transmission, and guiding The block 5 is arranged at the bottom of the canvas 4, the two ends of the guide block 5 extend to the inside of the guide rail 3, and a water receiving tray is also arranged under the canvas 4.

[0021] The working principle of this embodiment is as follows: when the air conditioner is heating...

Embodiment 2

[0025] Embodiment 2: An air conditioner defrosting control method.

[0026] An air conditioner defrosting control method, specifically as follows:

[0027] When the air conditioner is heating, the two air-blocking canvases 4 are rolled up. With the continuous heating of the air-conditioner, when the tube temperature of an outdoor heat exchanger reaches the defrosting condition, the corresponding air-blocking device motor Start to drive the wind-blocking canvas 4 down. When the wind-blocking canvas 4 completely blocks the outdoor heat exchanger that needs to be defrosted, the heat exchanger frost exchange channel is opened to defrost. When the defrost exits, the heating channel is opened, and at the same time Motor 1 drives wind-blocking canvas 4 to rise to initial state again. When the tube temperature of another outdoor heat exchanger reaches the defrosting condition, it is also controlled according to the above method.

Embodiment 3

[0028] Embodiment 3: a computer-readable storage medium.

[0029] A computer-readable storage medium is used for storing a computer program, and when the computer program is invoked by a processor, the air-conditioning defrosting control method described in Embodiment 2 is implemented.

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Abstract

The invention provides an air conditioner defrosting control method and device and an air conditioner. The air conditioner defrosting control device comprises two air blocking devices, wherein the twoair blocking devices are respectively arranged on two outer fans of an air conditioner outdoor unit, and the air blocking devices are used for blocking an outdoor heat exchanger during an outdoor defrosting period. According to the air conditioner defrosting control device, the outdoor heat exchanger subject to defrosting is blocked by the air blocking devices, so that the temperature in the defrosting process can be effectively kept, and the situation that because the defrosting temperature is affected by outside, the defrosting efficiency is reduced is avoided; and meanwhile, the heating effect of the air conditioner is not influenced, and the use comfort of a user is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner defrosting control method, device and air conditioner. Background technique [0002] When the traditional vapor compression air conditioning system is heating, the outdoor heat exchanger is prone to frosting. When the heat exchanger is frosted to a certain extent, the heat exchange efficiency of the air conditioner will drop. At this time, the air conditioner must be switched to the cooling state to defrost the outdoor heat exchanger. This will not only cause the actual heating capacity of the air conditioner to decrease, but also the fan of the internal unit frequently starts / stops during the defrosting process, resulting in poor user comfort experience. [0003] In the prior art, some technical solutions have also been proposed for this problem, such as a Chinese patent with application number CN201720291524. Wherein, the branch circuit of the outd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/41F24F11/64F24F13/22
CPCF24F11/41F24F11/64F24F13/222
Inventor 李捷郭凯朱伟明晋鹏陆宽杨盼盘丽萍
Owner GREE ELECTRIC APPLIANCES INC
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