Unlock instant, AI-driven research and patent intelligence for your innovation.

Air conditioner refrigerant leakage detection method, device and air conditioner

A technology of refrigerant leakage and detection method, which is applied in the direction of machinery and equipment, and can solve the problems of leakage detection method, low detection accuracy of refrigerant, and detection method of air-conditioning refrigerant leakage.

Active Publication Date: 2021-07-06
AUX AIR CONDITIONING LTD BY SHARE LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention aims to propose an air conditioner refrigerant leakage detection method, device and air conditioner to solve the problems of low detection accuracy and poor safety of refrigerant leakage detection methods, devices and air conditioners for existing air conditioners

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air conditioner refrigerant leakage detection method, device and air conditioner
  • Air conditioner refrigerant leakage detection method, device and air conditioner
  • Air conditioner refrigerant leakage detection method, device and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, an air conditioner refrigerant leakage detection method includes steps S1: before the air conditioner is turned on, judge whether the compressor is faulty; S2: if the compressor is in a normal state, the air conditioner is turned on to run, so that the compressor is in a low-frequency operation state, through the compression Judging whether the air conditioner has refrigerant leakage through the change of the machine current; S3: If the leakage of the air conditioner refrigerant is pending, adjust the operating status of the air conditioner so that the compressor is in a high-frequency operating state, and judge whether the air conditioner has refrigerant leakage through the change of the compressor current; S4: If the air conditioner refrigerant leaks The leakage situation is to be determined, and judge whether the air conditioner has refrigerant leakage through the pressure changes at two different positions in the refrigerant loop; S5: If th...

Embodiment 2

[0045] In order to further improve the accuracy and detection precision of the air-conditioning refrigerant leakage detection method and improve safety, on the basis of Embodiment 1, the air-conditioning refrigerant leakage detection method is further optimized.

[0046] Specifically, such as Figure 1-6 As shown, the step S1 includes step S11: before starting the air conditioner, enter the refrigerant leakage detection program according to the user's selection; S12: obtain the compressor self-test signal W and the power drive signal P; S13: obtain the preset compressor power drive Signal Threshold P 阈值 ; S14: judging whether the power drive signal P exceeds the threshold P 阈值 If yes, it is determined that the compressor is faulty, and the acousto-optic system of the alarm unit and the shutdown protection mechanism are activated; if not, it is determined that the compressor is in a normal state, and the step S2 is continued.

[0047] Further, the step S1 is performed by a fa...

Embodiment 3

[0061] Such as Figure 7 As shown, an air-conditioning refrigerant leakage detection device adopts the above-mentioned air-conditioning refrigerant leakage detection method to detect refrigerant leakage. The detection device includes a controller and a storage unit connected thereto, the storage unit is preset with threshold information required by the air conditioner for refrigerant leakage judgment, and the controller can control the air conditioner refrigerant leakage according to the preset threshold information The detection device detects the leakage of the air-conditioning refrigerant.

[0062] Preferably, the storage unit is cloud storage.

[0063] Further, the air conditioner refrigerant leakage detection device is set in the air conditioner, and the air conditioner includes an outdoor unit and an indoor unit, and the indoor unit is provided with an indoor heat exchanger and an indoor air supply fan. The outdoor unit is equipped with a compressor, an outdoor heat ex...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a method, device and air conditioner for air conditioner refrigerant leakage detection, including step S1: judging whether the compressor is faulty before the air conditioner is turned on; S2: if the compressor is in a normal state, the air conditioner is turned on to run, so that the compressor is in a low frequency In the running state, determine whether the air conditioner has refrigerant leakage through the change of the compressor current; S3: If the air conditioner refrigerant leakage situation is pending, adjust the air conditioner operating state so that the compressor is in a high-frequency operation state, and determine whether the air conditioner has refrigerant leakage through the compressor current change; S4: If the refrigerant leakage of the air conditioner is to be determined, judge whether the air conditioner has refrigerant leakage through the pressure changes at two different positions in the refrigerant loop; S5: If the air conditioner has refrigerant leakage, detect the refrigerant leakage speed, determine the degree of refrigerant leakage, and activate the alarm The unit, the air-conditioning refrigerant leakage detection method and device and the air conditioner of the present invention have the advantages of high detection accuracy, good accuracy and good safety.

Description

technical field [0001] The invention relates to the technical field of air-conditioning equipment, in particular to an air-conditioning refrigerant leakage detection method, device and air-conditioning. Background technique [0002] As a device for adjusting indoor temperature, air conditioners have been widely used. During the use of air conditioners, refrigerant leakage may occur, affecting the cooling / heating effect of the air conditioner. In severe cases, the equipment may even be burned, causing explosions and other disasters. Existing air conditioners basically do not have refrigerant leakage detection and alarm functions. Therefore, when refrigerant leakage affects the cooling / heating effect of the air conditioner, users cannot judge, identify and deal with the fault. [0003] The Chinese patent with the application number 201610887673.2 provides a method for detecting refrigerant leakage of an inverter air conditioner based on speed interval parameters. This method j...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/36F24F11/61F24F11/64
CPCF24F11/36F24F11/61F24F11/64
Inventor 白韡许真鑫
Owner AUX AIR CONDITIONING LTD BY SHARE LTD