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Air conditioner defrosting control method and device and air conditioner

A control method and technology for an air conditioner are applied in the field of air conditioners, control devices, and control methods for air conditioner defrosting, which can solve problems such as affecting user experience, long defrosting time, and insufficient judgment conditions, and achieve efficient heating. Running, time-accurate effects

Pending Publication Date: 2022-04-05
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The applicant found that the prior art has at least the following technical problems: the judging conditions for the air conditioner to enter the defrosting mode in the prior art are not intelligent enough, and if the timing of entering the defrosting mode is late, due to the frost layer on the surface of the outdoor heat exchanger, it will Seriously affect the heating capacity of the air conditioner, and the defrosting time will be longer, which also affects the user experience

Method used

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  • Air conditioner defrosting control method and device and air conditioner
  • Air conditioner defrosting control method and device and air conditioner
  • Air conditioner defrosting control method and device and air conditioner

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Embodiment 1

[0043] Such as figure 1 , the present embodiment provides a defrosting control method for an air conditioner, the control method comprising:

[0044] During the preset time period, the difference between the partial pressure of water vapor on the surface of the heat exchanger of the outdoor unit and the partial pressure of water vapor in the environment is obtained multiple times;

[0045] If the average value of the water vapor partial pressure differences obtained multiple times within the preset time period is greater than the first preset value A, the preset heating time t1 for the air conditioner to enter the defrosting mode is reduced.

[0046] In the prior art, a "preset heating time t1" is usually preset, which is pre-set in the program. In the prior art, when the air conditioner is running for heating over the "preset heating time t1" , and the temperature of the outdoor heat exchanger tube reaches the preset temperature threshold, the air conditioner can enter the d...

specific Embodiment approach

[0048] see figure 1 , the following provides a specific implementation of the air conditioner defrosting control method, the control method includes:

[0049] Step S10: Obtain the preset heating time t1 required for the air conditioner to enter the defrosting mode;

[0050] Wherein, the aforementioned preset heating time t1 is the preset heating time in the program, the heating operation time of the air conditioner must reach the aforementioned preset heating time, and the surface temperature of the outdoor heat exchanger must reach the preset temperature threshold , the air conditioner can enter the defrosting mode; the control method in this embodiment is to correct the above-mentioned preset heating time t1, combined with the tube temperature of the outdoor heat exchanger, as the judgment condition for the air conditioner to enter the defrosting mode.

[0051] Step S20: Obtain the temperature T1 and humidity w1 of the current outdoor environment in real time, and calculate t...

Embodiment 2

[0096] see figure 2 , the present embodiment provides a defrosting control device for an air conditioner, which is characterized in that it includes:

[0097] Detection module 201: used to obtain the difference between the partial pressure of water vapor on the surface of the heat exchanger of the outdoor unit and the partial pressure of water vapor in the environment multiple times within a preset time period;

[0098] The control module 202: used for reducing the air conditioner from entering defrosting when the average value of the difference of the water vapor partial pressure obtained by the detection module multiple times within a preset time period is greater than a first preset value The preset heating time to be achieved by the mode.

[0099] With regard to the control device for defrosting the air conditioner in the above embodiment, the specific manner in which each module executes operations has been described in detail in the above embodiment of the related meth...

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Abstract

The invention provides a control method and device for defrosting of an air conditioner and the air conditioner, relates to the technical field of air conditioners, and solves the technical problem that heating of the air conditioner is affected due to the fact that the opportunity for the air conditioner to enter a defrosting mode is too late. The air conditioner defrosting control method comprises the steps that in a preset time period, the difference value between the water vapor partial pressure on the surface of an outdoor unit heat exchanger and the water vapor partial pressure in the environment is obtained for multiple times; and if the average value of the difference values of the water vapor partial pressures obtained for multiple times within the preset time period is larger than a first preset value, the preset heating time needed for the air conditioner to enter the defrosting mode is shortened. According to the method, the preset heating time is corrected, the air conditioner can be effectively prevented from entering the defrosting mode lagging, and therefore efficient heating operation of the air conditioner is guaranteed.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner defrosting control method, a control device and an air conditioner. Background technique [0002] During the heating process of the outdoor heat exchanger of the air conditioner, when the surface temperature of the heat exchanger is lower than 0°C and lower than the dew point temperature of the ambient air, the water vapor on the surface of the outdoor heat exchanger will condense and frost, and the continuously accumulated frost layer will It weakens the heating performance and affects the comfort of users. Therefore, it is necessary to remove the frost layer on the surface of the outdoor heat exchanger to ensure the heat exchange performance. [0003] In the prior art, the method of controlling the air conditioner to enter the defrosting mode is generally the time-temperature method, that is, different ambient temperature ranges of the outdoor heat e...

Claims

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Application Information

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IPC IPC(8): F24F11/42F24F11/64F24F11/65F24F11/89F24F110/12F24F110/22
Inventor 李根廖敏连彩云梁之琦徐耿彬
Owner GREE ELECTRIC APPLIANCES INC
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