Method for controlling cooling capacity of air conditioner and air conditioner

A cooling capacity and air-conditioning technology, which is applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as poor user experience and the inability of the air-conditioning system to adjust the cooling capacity in a real-time and controllable way, so as to improve comfort performance, improve the cooling effect

Active Publication Date: 2022-02-01
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to propose a device, method and air conditioner for controlling the cooling capacity of an air conditioner, so as to solve the technical problems that the existing air conditioning system cannot adjust the cooling capacity in real time and controllable, and the user experience is poor

Method used

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  • Method for controlling cooling capacity of air conditioner and air conditioner
  • Method for controlling cooling capacity of air conditioner and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment discloses a device for controlling the cooling capacity of an air conditioner, such as figure 1 As shown, it includes an indoor unit and an outdoor unit. The indoor unit includes an evaporator 1 and a throttling device 5. The outdoor unit includes a compressor 2 and a condenser 4. The compressor 2, condenser 4, throttling device 5 and the evaporator 1 are sequentially The connection constitutes a refrigerant circulation loop. Specifically, the outlet of the evaporator 1 is connected to the suction port of the compressor 2 through a main pipeline. The device for controlling the cooling capacity of the air conditioner also includes an accumulator 3, the accumulator 3 includes an inlet of the accumulator and an outlet of the accumulator, the inlet of the accumulator is connected to the main pipeline through the first pipeline, and the outlet of the accumulator is connected to the main pipeline through the second pipe. The pipeline is connected with the mai...

Embodiment 2

[0050] This embodiment provides a method for controlling the cooling capacity of an air conditioner, including:

[0051] Detect evaporator inlet temperature T 盘温1 , Evaporator outlet temperature T 盘温2 , the outlet air temperature T of the indoor unit 出风 , the ambient temperature T of the indoor unit 环 , and the suction temperature T of compressor 2 吸气 and the suction pressure P;

[0052] Get the heat transfer degree ΔT of evaporator 1 蒸发 and compressor 2 suction superheat ΔT 过热 ;

[0053] Judging whether condition 1 is met: if condition 1 is met, then control the first expansion valve 6 to remain closed and open the second expansion valve 7 until condition 1 is not met, then close the second expansion valve 7;

[0054] Where condition 1 is: ΔT 蒸发 >K 1 , and T 出风 >K 2 .

[0055] Further, in this embodiment, after "controlling the first expansion valve 6 to keep closed and opening the second expansion valve 7 until the condition 1 is not satisfied, then closing the s...

Embodiment 3

[0077] This embodiment provides an air conditioner, including any device for controlling the cooling capacity of the air conditioner described above.

[0078] The air conditioner in this embodiment has the same technical effect as that of the device for controlling the cooling capacity of the air conditioner in Embodiment 1, which will not be repeated here.

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Abstract

The invention discloses a device and method for controlling the refrigerating capacity of an air conditioner and an air conditioner, including an indoor unit and an outdoor unit, the indoor unit includes an evaporator, the outdoor unit includes a compressor, and the outlet of the evaporator and the suction port of the compressor pass through a main pipe It also includes a liquid reservoir, which includes a liquid reservoir inlet and a liquid reservoir outlet. The liquid reservoir inlet is connected to the main pipeline through the first pipeline, and the liquid reservoir outlet is connected to the main pipeline through the second pipeline. ; A first expansion valve is set on the first pipeline; a second expansion valve is set on the second pipeline. The device and method for controlling the cooling capacity of the air conditioner and the air conditioner of the present invention can adjust the amount of refrigerant in the air conditioning system in real time according to the operating load when the air conditioner is running, thereby adjusting the cooling capacity of the air conditioner, improving the cooling effect, and improving user comfort .

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a device and method for controlling the cooling capacity of an air conditioner and an air conditioner. Background technique [0002] With the development of science and technology, air conditioners have entered thousands of households, and user needs have gradually shifted from being able to cool down to pursuing a more comfortable experience, such as precisely controlling the cooling capacity. [0003] At present, the main methods used by air-conditioning manufacturers to control the cooling capacity include: adjusting the operating frequency of the compressor, throttling device or fan speed. However, for fixed-frequency air conditioners, the operating frequency of the compressor is fixed and cannot be adjusted. For air conditioning systems using capillary tubes, the pressure before and after throttling is fixed and cannot be adjusted in real time. Adjusting the speed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/30F24F11/64F24F11/84F24F11/88F24F11/89F24F140/20
CPCF24F11/30F24F11/64F24F11/84F24F11/88F24F11/89F24F2140/20
Inventor 赖东锋张新玉韩雷
Owner NINGBO AUX ELECTRIC
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