A control method, control system and air conditioner for adjusting frosting of air conditioner

A technology for air-conditioning frosting and control methods, which is applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc. Comfort, ensure heating operation, and improve the effect of user experience

Active Publication Date: 2021-10-22
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, after defrosting and starting up, it takes a while to start heating, and the heating effect is slow; this defrosting method will cause the temperature of the indoor environment to drop, which will affect the user experience

Method used

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  • A control method, control system and air conditioner for adjusting frosting of air conditioner
  • A control method, control system and air conditioner for adjusting frosting of air conditioner
  • A control method, control system and air conditioner for adjusting frosting of air conditioner

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] See attached figure 1 , a first aspect of the present invention provides a control method for adjusting frosting in an air conditioner, the method comprising:

[0038] When the air conditioner is in heating mode, detect the outdoor ambient temperature T 1 ;

[0039] Judging the outdoor ambient temperature T 1 Relationship with the first temperature preset value;

[0040] When the outdoor ambient temperature T 1 When the temperature is greater than the first preset temperature, the air conditioner does not shut down during heating operation, and the air conditioner enters the frosting adjustment mode;

[0041] When the outdoor ambient temperature T 1 When the temperature is less than or greater than the first preset temperature, the air conditioner enters a normal defrosting mode, such as defrosting through an air conditioning refrigeration cycle.

[0042] It should be noted that the air conditioner enters the frosting adjustment mode, which specifically means that...

Embodiment 2

[0047] See attached figure 2 , the second temperature preset value is greater than the first temperature preset value;

[0048] The judging step includes: judging the outdoor ambient temperature T 1 The magnitude relationship with the first temperature preset value and the second temperature preset value;

[0049] When the outdoor ambient temperature T 1 When the temperature is greater than the second preset temperature, the air conditioner enters the first heating and anti-frost mode.

[0050] The value range of the second temperature preset value is 10°C to 14°C, preferably, the second temperature preset value is 12°C.

[0051] Specifically, because when the outdoor ambient temperature T 1 When the temperature is greater than 12°C, in the heating mode of the air conditioner, there is a sufficient heat exchange temperature difference between the condenser and the outdoor environment, which can avoid frosting.

[0052] See attached figure 2 , get the load Q and rated l...

Embodiment 3

[0059] See attached image 3 , to detect the outdoor ambient temperature T 1 , Outdoor ambient humidity T 2 and outdoor coil temperature Tp;

[0060] According to the outdoor ambient temperature T 1 and the outdoor ambient humidity T 2 , to determine the frost point temperature T 0 ;

[0061] Based on the frost point temperature T 0 The size of , determine the target temperature Td of the corresponding outdoor coil through the preset function;

[0062] When the temperature Tp of the outdoor coil is less than the target temperature Td of the outdoor coil, the operating parameters of the air conditioner are adjusted.

[0063] It should be noted that: the outdoor environment humidity T 2 is the wet bulb temperature of the outdoor environment.

[0064] Therefore, the present invention determines the frost point temperature and the target temperature of the outdoor coil according to the temperature and humidity of the outdoor environment, and adjusts the operating paramete...

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PUM

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Abstract

The invention relates to a control method, a control system, and an air conditioner for adjusting frosting of an air conditioner, wherein the control method for adjusting frosting of an air conditioner includes: when the air conditioner is in a heating mode, detecting the outdoor ambient temperature T 1 ;Judging the outdoor ambient temperature T 1 The relationship with the first temperature preset value; when the outdoor ambient temperature T 1 When the temperature is greater than the first preset temperature, the air conditioner enters into a frosting adjustment mode. In the present invention, by setting the outdoor ambient temperature to meet certain conditions, the air conditioner does not stop for heating operation, and the air conditioner enters the heating defrost or heating suppression frost mode, so as to prevent the frost layer from weakening the heating capacity of the air conditioner and avoid traditional refrigeration defrosting In this way, because the compressor accumulates too much refrigerant, it will affect the reliability and life of the compressor; defrosting or frost suppression during the heating process will not cause a decrease in the indoor temperature, improve the comfort of the room, and improve user experience.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method for adjusting frosting of an air conditioner, a control system and an air conditioner. Background technique [0002] With the development of science and technology and the improvement of people's living standards, the use of air conditioners is becoming more and more extensive. Air conditioners are used as a device to adjust the indoor ambient temperature. Under certain ambient temperature and ambient humidity conditions, if the temperature of the outdoor coil is too low, part of the water in the environment will be condensed and deposited in the outdoor heat exchanger, and the condensed water will stay on the fins, resulting in wind resistance and deterioration. The heat exchange of the outdoor heat exchanger will lead to frosting. The generation of frost further increases the wind resistance and deteriorates the heat transfer, thereby accelerating the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/65F24F11/64F24F11/42F24F11/89F24F11/86F24F11/84F24F110/12
CPCF24F11/42F24F11/64F24F11/65F24F11/84F24F11/86F24F11/89F24F2110/12
Inventor 李存永
Owner NINGBO AUX ELECTRIC
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