An air conditioner water leakage detection method

Abstract

The present invention mainly relates to the technical field of air conditioner control. To solve the problems that during the troubleshooting of current air conditioner water leakage, the frosting and defrosting processes cannot be reproduced in time, and the control instructions are complex and time-consuming, the present invention provides an air conditioner water leakage detection method. A frosting control instruction is sent to the heat exchanger of the air conditioner outdoor unit. After the frosting of the heat exchanger of the air conditioner outdoor unit is completed, a defrosting control instruction is sent to the heat exchanger of the air conditioner outdoor unit. The after-sales personnel determine the cause of the air conditioner water leakage according to the melting situation of the frost layer on the heat exchanger of the outdoor unit. The air conditioner water leakage detection method described in the present invention can quickly control the air conditioner to frost and defrost, provide assistance for the after-sales personnel to repair the cause of the air conditioner water leakage, troubleshoot the cause of the air conditioner water leakage within a large range, and play a role in saving energy and repair time.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of air conditioner control, and particularly relates to a method for detecting air conditioner water leakage. Background Art

[0002] In the existing air conditioner system, when the outdoor unit of the air conditioner leaks water, the after-sales personnel cannot directly determine whether it is a problem with the air conditioner pipeline manufacturing, drainage blockage, or abnormal defrosting program of the air conditioner that causes the water leakage. To troubleshoot the specific water leakage situation of the air conditioner or the abnormality of the air conditioner defrosting program, it is often necessary to reproduce the defrosting process of the outdoor unit of the air conditioner. However, due to the lag in user reporting or untimely after-sales processing, the air environment during the maintenance investigation by after-sales engineers is different from that when the problem occurred, resulting in the inability to reproduce the defrosting program. For example, when the outdoor temperature is high, it is necessary to execute the air conditioner heating mode for a long time to reproduce the defrosting program of the air conditioner, which not only increases the consumption of power resources, etc., but also wastes time. Summary of the Invention

[0003] The technical problem to be solved by the present invention:

[0004] To provide a method for detecting air conditioner water leakage, which solves the problems that the frosting and defrosting processes cannot be reproduced in time during the current air conditioner water leakage troubleshooting process, the control instructions are complex, and the time consumption is long.

[0005] The technical solution adopted by the present invention to solve the above technical problems:

[0006] A method for detecting air conditioner water leakage, which sends a frosting control instruction to the heat exchanger of the outdoor unit of the air conditioner through an after-sales detection system. After the frosting of the heat exchanger of the outdoor unit of the air conditioner is completed, a defrosting control instruction is sent to the heat exchanger of the outdoor unit of the air conditioner. The after-sales personnel determine the reason for the air conditioner water leakage according to the melting situation of the frost layer on the outdoor unit heat exchanger; wherein the after-sales detection system can be composed of hardware devices such as an MCU with a communication module and a display, or can be installed in an intelligent device in the form of a software program. The after-sales detection system needs to pass a key for communication verification before communicating with the indoor unit of the air conditioner.

[0007] Further, the frosting control instruction specifically includes that within the set T1 time, the compressor operates in the heating mode, the air deflector of the indoor unit of the air conditioner is closed, and the outdoor unit fan is closed, so that the heat exchanger of the outdoor unit of the air conditioner quickly cools down and frosts.

[0008] Further, the defrosting control instruction specifically includes that within the set T2 time, the compressor operates in the air conditioner cooling mode, the air deflector of the indoor unit of the air conditioner is closed, and the outdoor fan operates at the maximum wind speed, so that the heat exchanger of the outdoor unit quickly warms up and melts the frost layer on the heat exchanger.

[0009] Further, the control parameters of the frosting control instruction and the defrosting control instruction are displayed in real time on the display of the after-sales detection system or on the display screen of the smart device.

[0010] Further, the air conditioner controller stores each executed frosting control instruction and defrosting control instruction, which can be directly called when the next frosting or defrosting task is executed. The defrosting control instruction includes both the defrosting control instruction sent by the after-sales engineer to the air conditioner controller and the defrosting control instruction stored inside the air conditioner controller during the daily operation process.

[0011] Further, the frosting control instruction and the defrosting control instruction are sent from the indoor unit of the air conditioner to the outdoor heat exchanger.

[0012] Advantages of the present invention:

[0013] The air conditioner water leakage detection method described in the present invention can quickly control the air conditioner to frost and defrost, provide assistance for after-sales personnel to repair the cause of air conditioner water leakage, check the cause of air conditioner water leakage within a large range, and play the role of saving energy and repair time. Detailed implementation manners

[0014] For the air conditioner water leakage detection method described in the present invention, a frosting control instruction is sent to the outdoor heat exchanger of the air conditioner. After the outdoor heat exchanger of the air conditioner finishes frosting, a defrosting control instruction is sent to the outdoor heat exchanger of the air conditioner. The after-sales personnel can quickly qualitatively determine the cause of air conditioner water leakage within a large range according to the melting condition of the frost layer on the outdoor heat exchanger.

[0015] Embodiment:

[0016] In this embodiment, the hardware device or software program for sending the frosting and defrosting control instructions to the outdoor heat exchanger is called the after-sales detection system.

[0017] After the user discovers that the air conditioner is leaking water, it is reported through the after-sales detection system. The after-sales engineer carries the after-sales detection system to the door for repair. After turning on the air conditioner, the after-sales engineer connects the after-sales detection system to the indoor unit of the air conditioner through the set secret key. After the secret key verification passes, the after-sales detection system can communicate with the indoor unit of the air conditioner.

[0018] The after-sales engineer sends a frosting control instruction for the outdoor heat exchanger of the air conditioner through the after-sales detection system. The specific content of the frosting control instruction is that the compressor operates in the high-frequency state in the air conditioner heating mode, the air deflector of the indoor unit of the air conditioner is closed, the outdoor fan is turned off, and this state is maintained for T1 time, so that the outdoor heat exchanger quickly cools down and frosts.

[0019] After reaching the T1 time, the frosting mode is completed, and the indoor unit of the air conditioner sends a frosting completion instruction to the after-sales detection system. The after-sales engineer can view the thickness of the frost layer on the outdoor heat exchanger as needed to determine whether to continue executing the frosting control instruction. If the required frost layer thickness has been reached, the after-sales engineer can send a defrosting control instruction to the outdoor unit of the air conditioner through the after-sales detection system. The defrosting control instruction specifically includes: the compressor operates in the air-conditioning refrigeration mode at a high frequency, the air deflector of the indoor unit of the air conditioner is closed, and the outdoor fan operates at the maximum wind speed, and this state is maintained for a running time of T2, so that the outdoor heat exchanger quickly heats up and melts the frost layer on the heat exchanger.

[0020] The after-sales engineer can view the melting situation of the frost layer on the outdoor heat exchanger as needed to check problems such as the water receiving tray, drain pipe, and system pipeline of the outdoor unit; if the frost layer on the outdoor heat exchanger does not melt after the defrosting program has ended or passed half, it can be basically judged that the cause of the air conditioner leakage is a problem in the system pipeline or software control; if the frost layer completely melts, but the water volume in the water receiving tray has always been in a relatively large state, it can be basically judged that the drain pipe is blocked.

[0021] In the present invention, the air conditioner display shows the control parameters of the frosting control instruction and the defrosting control instruction in real time, which is convenient for the after-sales engineer to master the specific frosting and defrosting situations.

[0022] In the present invention, the after-sales detection system also stores the parameters of the previous execution of the frosting control instruction and the defrosting control instruction. When the after-sales detection system executes the frosting and defrosting control instructions, it can directly search its internal log, call the previous frosting or defrosting control instruction, and execute the current frosting or defrosting task.

Claims

1. An air conditioner water leakage detection method, characterized in that, Send a frosting control command to the heat exchanger of the outdoor unit of the air conditioner. After the frosting of the heat exchanger of the outdoor unit of the air conditioner is completed, send a defrosting control command to the heat exchanger of the outdoor unit of the air conditioner. The after-sales personnel determine the reason for the air conditioner leakage according to the melting condition of the frost layer on the heat exchanger of the outdoor unit, specifically including: in the case where the defrosting program has ended or passed half, if the frost layer on the heat exchanger of the outdoor unit does not melt, it is judged that the reason for the air conditioner leakage is a problem with the system pipeline or software control; if the frost layer on the heat exchanger of the outdoor unit has completely melted, but the water volume in the water receiving tray has always been in a relatively large state, it is judged that the reason for the air conditioner leakage is that the drain pipe is blocked.

2. The air conditioner water leakage detection method according to claim 1, characterized in that, The specific content of the frosting control command is that within the set T1 time, the compressor operates in the heating mode, the air deflector of the indoor unit of the air conditioner is closed, and the outdoor unit fan is turned off, so that the heat exchanger of the outdoor unit of the air conditioner cools down rapidly to form frost.

3. The air conditioner water leakage detection method according to claim 2, characterized in that, The specific content of the defrosting control command is that within the set T2 time, the compressor operates in the air-conditioning cooling mode, the air deflector of the indoor unit of the air conditioner is closed, and the outdoor fan operates at the maximum wind speed, so that the heat exchanger of the outdoor unit heats up rapidly and melts the frost layer on the heat exchanger.

4. A method for detecting air conditioner water leakage according to any one of claims 1-3, characterized in that, The control parameters of the frosting control command and the defrosting control command are displayed in real time.

5. A method for detecting air conditioner water leakage according to any one of claims 1-3, characterized in that, The air conditioner controller stores each executed frosting control command and defrosting control command, and directly calls them when performing the next frosting or defrosting task.

6. A method for detecting air conditioner water leakage according to any one of claims 1-3, characterized in that, Send the frosting control command and the defrosting control command to the heat exchanger of the outdoor unit through the indoor unit of the air conditioner.