Processing method for refrigerant leakage fault of outdoor unit of air conditioner and related device

Abstract

The invention discloses an air conditioner outdoor unit refrigerant leakage fault processing method and a related device, and relates to the field of air conditioner fault monitoring, and the method comprises the steps that when the refrigerant concentration of an air conditioner outdoor unit cavity is not smaller than an alarm threshold value corresponding to the current alarm frequency, an air conditioner indoor unit is controlled to be in a powerful air supply mode, and an audible and visual alarm instruction is generated; the alarm threshold value is reduced along with the increase of the current alarm frequency corresponding to the alarm threshold value, under the condition that the air conditioner indoor unit is in the powerful air supply mode, if the refrigerant concentration is smaller than the alarm threshold value, 1 is added to the current alarm frequency, and the air conditioner indoor unit is controlled to end the powerful air supply mode. The refrigerant leakage fault is monitored on the basis of the refrigerant concentration and the alarm threshold value of the chamber of the air conditioner outdoor unit, the air conditioner outdoor unit is controlled to be in the powerful air supply mode when the refrigerant concentration is not smaller than the alarm threshold value, the audible and visual alarm instruction is generated, the refrigerant leakage fault is processed and marked in time, and the working efficiency is improved. And the monitoring efficiency and the processing efficiency of the refrigerant leakage fault are improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioner fault monitoring, and particularly relates to a method for processing a refrigerant leakage fault of an outdoor unit of an air conditioner and a related device. Background Art

[0002] As the service life of an air conditioner increases, its equipment, pipelines, and components will all show varying degrees of aging, which may lead to air conditioner failures. Among the various possible air conditioner failures, the refrigerant leakage fault is a relatively serious type of fault.

[0003] Existing air conditioners mostly use R32 (difluoromethane) as the refrigerant. When the concentration of R32 refrigerant is relatively high, there are risks of flammability and explosion. When the compressor or refrigerant circulation pipeline in the outdoor unit of the air conditioner leaks R32 refrigerant due to aging, since there is a relatively enclosed space in the outdoor unit of the air conditioner, the R32 refrigerant is likely to accumulate in the outdoor unit, resulting in an increase in the concentration of R32 refrigerant. If efficient monitoring and processing of the refrigerant leakage fault cannot be achieved, when the concentration of R32 refrigerant is relatively high, if the outdoor unit of the air conditioner starts, the high-concentration R32 refrigerant may be ignited by the sparks generated when the outdoor unit starts, thus posing a risk of fire or explosion. Summary of the Invention

[0004] In view of the above problems, the present application provides a method for processing a refrigerant leakage fault of an outdoor unit of an air conditioner and a related device to achieve the purpose of improving the monitoring and processing efficiency of the refrigerant leakage fault. The specific solutions are as follows:

[0005] The first aspect of the present application provides a method for processing a refrigerant leakage fault of an outdoor unit of an air conditioner, including:

[0006] Collecting the refrigerant concentration in the chamber of the outdoor unit of the air conditioner;

[0007] When the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm count, controlling the indoor unit of the air conditioner to be in the forced air supply mode and generating an audible and visual alarm instruction. The alarm threshold decreases as the corresponding current alarm count increases. The forced air supply mode is an operating mode in which the indoor unit of the air conditioner supplies air to the chamber of the outdoor unit of the air conditioner. The audible and visual alarm instruction is used to trigger the alarm module to emit an audible and visual alarm signal;

[0008] When the indoor unit of the air conditioner is in the forced air supply mode, determining whether the refrigerant concentration is less than the alarm threshold. If so, increasing the current alarm count by 1 and controlling the indoor unit of the air conditioner to end the forced air supply mode.

[0009] In a possible implementation, the generating of the audible and visual alarm instruction includes:

[0010] Obtain the current alarm cancellation count, and generate the audible and visual alarm instruction based on the alarm duration corresponding to the current alarm cancellation count, where the alarm duration decreases as the corresponding current alarm cancellation count increases.

[0011] In a possible implementation, when the indoor unit of the air conditioner is in the strong air supply mode, it further includes:

[0012] When a detection of an audible and visual alarm cancellation operation is made, increment the current alarm cancellation count by 1.

[0013] In a possible implementation, the current alarm count and the current alarm cancellation count are stored in a preset memory in the indoor unit of the air conditioner, and the preset memory is used to store the current alarm count and the current alarm cancellation count in the event of a power outage.

[0014] In a possible implementation, when the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm count, it further includes:

[0015] Generate refrigerant leakage fault information based on the identifier of the outdoor unit chamber of the air conditioner, and send the refrigerant leakage fault information to the main unit of the wired controller, so that the main unit of the wired controller terminates sending control instructions to the air conditioner where the outdoor unit chamber with the identifier is located.

[0016] A second aspect of the present application provides a processing system for refrigerant leakage faults of an outdoor unit of an air conditioner, including:

[0017] A temperature acquisition module for acquiring the refrigerant concentration in the outdoor unit chamber of the air conditioner;

[0018] A fault processing module for, when the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm count, controlling the indoor unit of the air conditioner to be in the strong air supply mode and generating an audible and visual alarm instruction, where the alarm threshold decreases as the corresponding current alarm count increases, the strong air supply mode is an operating mode in which the indoor unit of the air conditioner supplies air to the outdoor unit chamber of the air conditioner, and the audible and visual alarm instruction is used to trigger the alarm module to emit an audible and visual alarm signal;

[0019] The fault processing module is further configured to, when the indoor unit of the air conditioner is in the strong air supply mode, determine whether the refrigerant concentration is less than the alarm threshold, and if so, increment the current alarm count by 1 and control the indoor unit of the air conditioner to end the strong air supply mode.

[0020] In a possible implementation, when generating the audible and visual alarm instruction, the fault processing module is set to:

[0021] Obtain the current alarm cancellation times, and generate the audible and visual alarm instruction based on the alarm duration corresponding to the current alarm cancellation times, where the alarm duration decreases as the corresponding current alarm cancellation times increase.

[0022] In a possible implementation, the fault handling module is further configured to:

[0023] When the indoor unit of the air conditioner is in the strong air supply mode and an audible and visual alarm cancellation operation is detected, increment the current alarm cancellation times by 1.

[0024] In a possible implementation, the current alarm times and the current alarm cancellation times are stored in a preset memory in the indoor unit of the air conditioner, and the preset memory is used to store the current alarm times and the current alarm cancellation times in the case of a power failure.

[0025] In a possible implementation, the fault handling module is further configured to:

[0026] When the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm times, generate refrigerant leakage fault information based on the identifier of the outdoor unit chamber of the air conditioner, and send the refrigerant leakage fault information to the wired controller host, so that the wired controller host terminates sending control instructions to the air conditioner where the outdoor unit chamber with the identifier is located.

[0027] The third aspect of the present application provides a computer program product, including computer-readable instructions, when the computer-readable instructions run on an electronic device, enabling the electronic device to implement the method for handling refrigerant leakage faults of the outdoor unit of the air conditioner described in the first aspect or any implementation manner of the first aspect.

[0028] The fourth aspect of the present application provides an electronic device, including at least one processor and a memory connected to the processor, where:

[0029] The memory is used to store a computer program;

[0030] The processor is used to execute the computer program, so that the electronic device can implement the method for handling refrigerant leakage faults of the outdoor unit of the air conditioner described in the first aspect or any implementation manner of the first aspect.

[0031] The fifth aspect of the present application provides a computer storage medium, the storage medium carrying one or more computer programs, when the one or more computer programs are executed by an electronic device, enabling the electronic device to implement the method for handling refrigerant leakage faults of the outdoor unit of the air conditioner described in the first aspect or any implementation manner of the first aspect.

[0032] With the above technical solutions, a method and related device for handling the refrigerant leakage fault of the outdoor unit of an air conditioner provided by the present application control the indoor unit of the air conditioner to be in the forced air supply mode when the refrigerant concentration in the chamber of the outdoor unit of the air conditioner collected is not less than the alarm threshold corresponding to the current alarm times, so that the indoor unit of the air conditioner supplies air to the chamber of the outdoor unit of the air conditioner, thereby reducing the refrigerant concentration in the chamber of the outdoor unit of the air conditioner, and realizing the monitoring and handling of the refrigerant leakage fault. At the same time, an alarm instruction is generated to trigger the alarm module to emit an audible and visual alarm signal, thereby marking the fault location for the operation and maintenance personnel and improving the processing efficiency of the refrigerant leakage fault. Finally, by configuring the corresponding relationship between the current alarm times and the alarm threshold to decrease as the current alarm times increase, the duration for the refrigerant concentration to rise to the alarm threshold is shortened, and the monitoring efficiency is improved. It can be seen that the present application improves the monitoring efficiency and processing efficiency of the refrigerant leakage fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In combination with the accompanying drawings and with reference to the following specific embodiments, the above and other features, advantages and aspects of the various embodiments of the present disclosure will become more apparent. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and the original components and elements are not necessarily drawn to scale.

[0034] Figure 1 It is a flowchart of a method for handling the refrigerant leakage fault of the outdoor unit of an air conditioner provided by the present application;

[0035] Figure 2 It is a schematic structural diagram of an air conditioner with a forced air supply mode provided by the present application;

[0036] Figure 3 It is a schematic diagram of the connection mode of the wire controllers corresponding to each indoor unit provided by the present application;

[0037] Figure 4 It is a flowchart of a method for handling the refrigerant leakage fault of the outdoor unit of an air conditioner provided by a possible implementation of the present application;

[0038] Figure 5 It is a block diagram of a system for handling the refrigerant leakage fault of the outdoor unit of an air conditioner provided by the present application;

[0039] Figure 6 It is a schematic structural diagram of an electronic device provided by the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The following describes the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. The terms used in the embodiments part of the present application are only for explaining the specific embodiments of the present application and are not intended to limit the present application.

[0041] The embodiments of the present application will be described below with reference to the accompanying drawings. As can be known to those of ordinary skill in the art, with the development of technology and the emergence of new scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0042] The terms "first", "second", etc. in the specification, claims and the above-mentioned drawings of the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, which is only a way of distinguishing when describing objects with the same attributes in the embodiments of the present application. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion, so that a process, method, system, product or device including a series of units does not have to be limited to those units, but may include other units not clearly listed or inherent to these processes, methods, products or devices.

[0043] The first aspect of the present application provides a method for handling the refrigerant leakage fault of the outdoor unit of an air conditioner, as Figure 1 shown, the method for handling the refrigerant leakage fault of the outdoor unit of the air conditioner includes:

[0044] S101. Collect the refrigerant concentration in the chamber of the outdoor unit of the air conditioner.

[0045] It should be noted that in the actual application scenario, the above step S101 as Figure 1 shown can be executed by a concentration sensor deployed in the chamber of the outdoor unit of the air conditioner. The type of the above concentration sensor can be selected according to the chemical composition of the refrigerant, and the present application does not make too many limitations and elaborations on the specific type of the concentration sensor.

[0046] In a possible implementation, the above step S101 as Figure 1 shown can be executed periodically according to a preset sampling interval. When adopting the periodic execution method, the implementation method of the above step S101 as Figure 1 shown can include steps A1 to A3.

[0047] Step A1: In response to the power-on instruction, start recording the operation duration.

[0048] Step A2: When the operation duration in step A1 is equal to the preset sampling interval, collect the refrigerant concentration in the chamber of the outdoor unit of the air conditioner.

[0049] Step A3: After collecting the refrigerant concentration in the chamber of the outdoor unit of the air conditioner, set the operation duration to 0, record the operation duration again, and return to execute step A2.

[0050] In another possible implementation, the above as Figure 1The step S101 shown above can be executed in a continuous sampling manner. When adopting the continuous sampling manner, the implementation manner of the step S101 as shown in Figure 1 above may include step B1.

[0051] Step B1: In response to the power-on instruction, start continuously collecting the refrigerant concentration in the outdoor unit chamber of the air conditioner, and each time a refrigerant concentration is collected, it triggers the step S102 as shown in Figure 1 above.

[0052] S102. When the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm times, control the indoor unit of the air conditioner to be in the forced air supply mode, and generate an audible and visual alarm instruction. The alarm threshold decreases as the corresponding current alarm times increase. The forced air supply mode is an operating mode in which the indoor unit of the air conditioner supplies air to the outdoor unit chamber of the air conditioner. The audible and visual alarm instruction is used to trigger the alarm module to emit an audible and visual alarm signal.

[0053] It should be noted that in the actual application scenario, the above forced air supply mode is an operating mode in which the indoor unit of the air conditioner supplies air to the outdoor unit chamber of the air conditioner. For some household air conditioners and industrial air conditioners, due to the need for indoor and outdoor air exchange scenarios, in addition to the refrigerant circulation circuit, a connecting pipe is also configured between the indoor unit and the outdoor unit of the air conditioner, and an air filtering device can be deployed in the connecting pipe. In the application scenario of industrial air conditioners, there is a need for air exchange. In the forced air supply mode, by controlling the impeller in the indoor unit of the air conditioner to rotate at an accelerated speed, the indoor air is discharged into the outdoor unit chamber through the connecting pipe, thereby reducing the refrigerant concentration in the outdoor unit chamber. In this application, by configuring to control the indoor unit of the air conditioner to be in the forced air supply mode when the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm times, the refrigerant concentration in the outdoor unit chamber of the air conditioner is reduced, avoiding the risk of combustion or explosion caused by too high refrigerant concentration, and realizing the handling of refrigerant leakage faults.

[0054] In a possible implementation, the implementation manner of the step S102 as shown in Figure 1 above can be:

[0055] The structural schematic diagram of the air conditioner with the above forced air supply mode is as shown in Figure 2 above, and includes: an indoor unit 201 of the air conditioner, an outdoor unit 202 of the air conditioner, a refrigerant circulation circuit 203, a ventilation connecting pipe 204, and an alarm module 208. Among them, the refrigerant circulation circuit 203 includes: a condenser 205, a heat exchanger 206, and a refrigerant circulation pipeline 207. The ventilation connecting pipe 204 connects the indoor unit 201 and the outdoor unit 202 of the air conditioner.

[0056] When the refrigerant concentration is not less than the alarm threshold corresponding to the current number of alarm times, each component in the outdoor unit 202 of the air conditioner, including the heat exchanger 206, stops operating. Control the indoor unit 201 of the air conditioner to be in the forced air supply mode, so that the indoor unit 201 of the air conditioner introduces the air in the space where it is located into the chamber of the outdoor unit 202 of the air conditioner through the ventilation connecting pipe 204. At the same time, control the indoor unit 201 of the air conditioner to generate an audible and visual alarm instruction to trigger the alarm module 208 to emit an audible and visual alarm signal.

[0057] It should be noted that in this application, by configuring and comparing the collected refrigerant concentration with the alarm threshold, the monitoring of refrigerant leakage faults is realized.

[0058] It should be noted that in the actual application scenario, the above current number of alarm times can be the number of times that the detected refrigerant concentration is higher than the alarm threshold. Since the forced air supply mode is only used to reduce the refrigerant concentration in the chamber of the outdoor unit of the air conditioner and cannot prevent the leakage of the refrigerant. Therefore, after the forced air supply mode is stopped, the refrigerant concentration in the chamber of the outdoor unit of the air conditioner will still gradually increase. If a fixed alarm threshold is adopted, then after each stop of the forced air supply mode, without considering the influence of the external environment (for example: ventilation environment, air humidity, ambient temperature, etc.) and without the maintenance personnel performing fault repair, the time for the refrigerant concentration to rise to the alarm threshold is also fixed. And in this application, by configuring and pre-establishing the corresponding relationship between the current number of alarm times and the alarm threshold, and configuring the alarm threshold to decrease as the corresponding current number of alarm times increases, when continuously monitoring the refrigerant concentration multiple times, the alarm threshold shows a gradually decreasing trend, which makes the time for the refrigerant concentration to rise to the alarm threshold gradually shorten, thereby improving the monitoring efficiency.

[0059] It should be noted that in the actual application scenario, the corresponding relationship between the above current number of alarm times and the alarm threshold can be:

[0060] Suppose the current number of alarm times includes five dimensions from 0 to 4 times. When the current number of alarm times is 0 times, the corresponding alarm threshold is the lowest concentration at which the refrigerant burns, for example, 10% (indicating that the concentration of the refrigerant in the air accounts for 10%). Then when the current number of alarm times is 1 time, the corresponding alarm threshold is 8%; when the current number of alarm times is 2 times, the corresponding alarm threshold is 6%; when the current number of alarm times is 3 times, the corresponding alarm threshold is 4%; when the current number of alarm times is 4 times, the corresponding alarm threshold is 2%.

[0061] S103. When the indoor unit of the air conditioner is in the forced air supply mode, determine whether the refrigerant concentration is less than the alarm threshold. If so, add 1 to the current number of alarm times and control the indoor unit of the air conditioner to end the forced air supply mode.

[0062] It should be noted that in actual application scenarios, since the strong air supply mode is only used to reduce the refrigerant concentration in the outdoor unit chamber of the air conditioner and cannot solve the refrigerant leakage fault caused by pipeline leakage or other reasons. Therefore, after the strong air supply mode ends, if the refrigerant leakage fault has not been eliminated, the refrigerant concentration in the outdoor unit chamber of the air conditioner will still gradually increase. In order to improve the monitoring efficiency of the refrigerant leakage fault, in this application, when the air conditioner indoor unit is in the strong air supply mode and the refrigerant concentration is less than the alarm threshold, the current alarm count is incremented by 1, and the air conditioner indoor unit is controlled to end the strong air supply mode. Thus, in the subsequent refrigerant concentration monitoring process, a smaller alarm threshold is used for monitoring, thereby shortening the monitoring time and improving the monitoring efficiency.

[0063] In this application, when the refrigerant concentration in the outdoor unit chamber of the air conditioner collected is not less than the alarm threshold corresponding to the current alarm count, the air conditioner indoor unit is controlled to be in the strong air supply mode, so that the air conditioner indoor unit supplies air to the outdoor unit chamber of the air conditioner, thereby reducing the refrigerant concentration in the outdoor unit chamber of the air conditioner, and realizing the monitoring and handling of the refrigerant leakage fault. At the same time, an alarm instruction is generated to trigger the alarm module to emit an audible and visual alarm signal, thereby marking the fault location for the operation and maintenance personnel and improving the processing efficiency of the refrigerant leakage fault. Finally, by configuring the corresponding relationship between the current alarm count and the alarm threshold to decrease as the current alarm count increases, the time for the refrigerant concentration to rise to the alarm threshold is shortened, and the monitoring efficiency is improved. It can be seen that this application improves the monitoring efficiency and processing efficiency of the refrigerant leakage fault.

[0064] In one possible implementation, the above-mentioned generation of the audible and visual alarm instruction includes:

[0065] Obtain the current alarm cancellation count, and generate an audible and visual alarm instruction based on the alarm duration corresponding to the current alarm cancellation count, where the alarm duration decreases as the corresponding current alarm cancellation count increases.

[0066] It should be noted that the traditional audible and visual alarm starts when a refrigerant leakage fault is detected and continues to alarm during the process of eliminating the refrigerant leakage fault. This results in the inability to cancel the audible and visual alarm even when the user has clearly identified the fault location, reducing the user experience. In this application, by configuring the corresponding relationship between the current alarm cancellation count and the alarm duration, the alarm duration is gradually shortened during continuous monitoring, avoiding continuous alarm during the process from the occurrence to the elimination of the refrigerant leakage fault, and improving the user experience.

[0067] In one possible implementation, the above-mentioned corresponding relationship between the current alarm cancellation count and the alarm duration can be:

[0068] It is assumed that the current alarm cancellation times include four dimensions from 0 to 3 times. When the current alarm cancellation times are 0 times, the corresponding alarm duration is the maximum duration for the maintenance personnel to discover the location of the refrigerant fault and start manual treatment of the refrigerant leakage fault. For example, 2 hours (indicating that the maximum duration for the maintenance personnel to move to the fault location after receiving the refrigerant leakage fault prompt is 2 hours). Then, when the current alarm cancellation times are 1 time, the corresponding alarm duration is 1 hour and 30 minutes; when the current alarm cancellation times are 2 times, the corresponding alarm duration is 1 hour; when the current alarm cancellation times are 3 times, the corresponding alarm duration is 30 minutes. Since the current alarm cancellation times represent the number of times the outdoor unit of the air conditioner with refrigerant leakage fault has been repaired, when the current alarm cancellation times are not 0, it indicates that the maintenance personnel have repaired the outdoor unit of the air conditioner with refrigerant leakage fault at least once. Therefore, the maintenance personnel have clearly identified the location and equipment status of the outdoor unit of the air conditioner with refrigerant leakage fault. At this time, the duration required for the maintenance personnel to move to the fault location after receiving the refrigerant leakage fault prompt will be shortened. Therefore, by configuring the corresponding relationship between the current alarm cancellation times and the alarm duration, the alarm duration is gradually shortened during continuous monitoring, avoiding continuous alarm during the process from the occurrence to the elimination of the refrigerant leakage fault, and improving the user experience.

[0069] In a possible implementation, when the indoor unit of the air conditioner is in the forced air supply mode, it further includes:

[0070] When a sound and light alarm cancellation operation is detected, increment the current alarm cancellation times by 1.

[0071] It should be noted that in the actual application scenario, the above sound and light alarm cancellation operation can be an operation manually triggered by the maintenance personnel or an operation automatically triggered by the timer at the end moment of the alarm duration.

[0072] In a possible implementation, the current alarm times and the current alarm cancellation times are stored in a preset memory in the indoor unit of the air conditioner, and the preset memory is used to store the current alarm times and the current alarm cancellation times in the case of power failure.

[0073] It should be noted that in the actual application scenario, due to the different working natures of the leaking devices, there is an actual need to power off the air conditioner during the process of troubleshooting the refrigerant leakage fault. When the air conditioner is powered off, if the current alarm times and the current alarm cancellation times are not stored, it will cause data loss when the air conditioner is powered on again, thereby reducing the monitoring efficiency and processing efficiency. Therefore, in this application, by configuring to store the current alarm times and the current alarm cancellation times in the preset memory, and configuring the preset memory to be able to store data in the case of power failure, the impact of data loss caused by power failure on the monitoring efficiency of the refrigerant leakage fault is prevented.

[0074] It should be noted that in the actual application scenario, when the maintenance personnel confirm to eliminate the refrigerant leakage fault of the outdoor unit of the air conditioner, the maintenance personnel can reset the current alarm count and the current alarm cancellation count by formatting the preset memory.

[0075] In a possible implementation, when the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm count, it further includes:

[0076] Generating refrigerant leakage fault information based on the identifier of the outdoor unit chamber of the air conditioner, and sending the refrigerant leakage fault information to the main controller of the wired controller, so that the main controller of the wired controller terminates sending control instructions to the air conditioner where the outdoor unit chamber with the identifier is located.

[0077] It should be noted that in the actual application scenario, the wired controller is deployed on the indoor unit of the air conditioner and is used to control and adjust the operating state of the air conditioner. To improve the control efficiency in the multi-air conditioner deployment scenario, usually, the signal transmission lines of the wired controllers of multiple air conditioners are connected to the signal transmission line of the main controller of the wired controller, so as to use the main controller of the wired controller to control each air conditioner. The multi-air conditioner deployment scenario can be:

[0078] Suppose the current multi-air conditioner deployment scenario includes System 1 and System 2. Among them, System 1 is a deployment method of 1 indoor unit and 1 outdoor unit, that is, indoor unit 1 uses outdoor unit 1, indoor unit 2 uses outdoor unit 2, and indoor unit 3 uses outdoor unit 3. System 2 is a deployment method of multiple indoor units and 1 outdoor unit, that is, indoor units 4, 5, and 6 share outdoor unit 4. Then in this scenario, the connection method of the wired controllers corresponding to each indoor unit is as Figure 3 shown: The signal transmission lines of the wired controllers of indoor units 1 to 6 are all connected to the signal transmission line of the main controller of the wired controller. Among them, Figure 3 the dotted line represents the usage relationship between the indoor unit and the outdoor unit, and the solid line represents the signal transmission line connection relationship between the wired controller in the indoor unit and the main controller of the wired controller.

[0079] It should be noted that in actual application scenarios, due to the long spatial distance between the control room and the deployment location of the air conditioner, the control room cannot promptly detect the audible and visual alarm signals emitted by the alarm module. Therefore, in this application, refrigerant leakage fault information is generated based on the identifier of the outdoor unit chamber of the air conditioner and sent to the main controller of the wired controller, so that the main controller of the wired controller terminates sending control instructions to the air conditioner where the outdoor unit chamber with the identifier is located, to avoid the risk of the outdoor unit of the air conditioner operating and causing fire or explosion due to the main controller of the wired controller sending control instructions to the outdoor unit of the air conditioner with refrigerant leakage fault when it is unknown. At the same time, by configuring to send the refrigerant leakage fault information including the identifier of the outdoor unit chamber of the air conditioner to the main controller of the wired controller, the effect of assisting the maintenance personnel to confirm the location of the outdoor unit of the air conditioner with refrigerant leakage fault can also be achieved, thereby improving the processing efficiency of refrigerant leakage faults.

[0080] It should be noted that in actual application scenarios, as described above Figure 1 There are various implementation manners of the method for handling refrigerant leakage faults of the outdoor unit of the air conditioner shown above. Here, an example is provided:

[0081] As Figure 4 shown, it is a flowchart of the method for handling refrigerant leakage faults of the outdoor unit of the air conditioner provided in a possible implementation of this application. The specific operation steps are as follows:

[0082] Step S401, collect the refrigerant concentration in the outdoor unit chamber of the air conditioner. And trigger step S402.

[0083] Step S402, obtain the alarm threshold corresponding to the current number of alarms. And trigger step S403.

[0084] Step S403, determine whether the refrigerant concentration is not less than the alarm threshold. If so, trigger step S404; if not, trigger step S401.

[0085] Step S404, control the indoor unit of the air conditioner to be in the forced air supply mode, and generate an audible and visual alarm instruction based on the alarm duration corresponding to the current number of canceled alarms obtained. And trigger step S405 and step S406.

[0086] Step S405, collect the refrigerant concentration in the outdoor unit chamber of the air conditioner after the indoor unit of the air conditioner is in the forced air supply mode. And trigger step S407.

[0087] Step S406, the alarm module emits an audible and visual alarm signal in response to the audible and visual alarm instruction. And trigger step S408.

[0088] Step S407, determining whether the refrigerant concentration of the air conditioner indoor unit in the strong air supply mode is not less than the alarm threshold. If so, triggering step S409 and step S415. If not, triggering step S405.

[0089] Step S408, determining whether the sound and light alarm cancellation operation is detected. If yes, step S410 is triggered, if no, step S406 is triggered.

[0090] In one possible implementation, the above Figure 4 The implementation of step S408 shown may include the following steps C1 to C3: Step C1, when the alarm module sends out the sound and light alarm signal in response to the sound and light alarm instruction, the timer starts the countdown, the countdown duration is the alarm duration, and triggers step C2; Step C2, determine whether the countdown is over, if so, trigger step C3, if not, trigger step C2. Step C3, output a signal to cancel the sound and light alarm operation.

[0091] Step S409, control the indoor unit of the air conditioner to end the strong air supply mode, and increase the current alarm number by 1. Step S411 is triggered.

[0092] Step S410: the alarm module stops sending out the sound and light alarm signal, and increases the current alarm cancellation times by 1. Step S412 is triggered.

[0093] Step S411, determine whether a reset instruction is received. If yes, trigger step S413, if not, trigger step S402.

[0094] Step S412, determining whether a reset instruction is received. If yes, step S414 is triggered, otherwise step S404 is triggered.

[0095] Step S413, set the current alarm number to 0.

[0096] Step S414, set the current alarm cancellation times to 0.

[0097] Step S415, generating refrigerant leakage fault information based on the identification of the air conditioner outdoor chamber, and sending the refrigerant leakage fault information to the wired controller host.

[0098] It should be noted that in actual application scenarios, the above Figure 4 Step S401 shown is as follows Figure 1 A possible implementation of step S101 is shown in FIG. Figure 4 Steps S402 to S404 are as shown in FIG. Figure 1 A possible implementation of step S102 is shown in FIG. Figure 4 Steps S405, S407 and S409 are shown as follows: Figure 1A possible implementation of step S103 shown.

[0099] The second aspect of the present application provides a processing system for refrigerant leakage faults of an outdoor unit of an air conditioner. As Figure 5 shown, the processing system for refrigerant leakage faults of the outdoor unit of the air conditioner includes:

[0100] A temperature acquisition module 501, configured to acquire the refrigerant concentration in the chamber of the outdoor unit of the air conditioner;

[0101] A fault processing module 502, configured to control the indoor unit of the air conditioner to be in a forced air supply mode and generate an audible and visual alarm instruction when the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm times. The alarm threshold decreases as the corresponding current alarm times increase. The forced air supply mode is an operating mode in which the indoor unit of the air conditioner supplies air to the chamber of the outdoor unit of the air conditioner. The audible and visual alarm instruction is used to trigger the alarm module to emit an audible and visual alarm signal;

[0102] The fault processing module 502 is further configured to determine whether the refrigerant concentration is less than the alarm threshold when the indoor unit of the air conditioner is in the forced air supply mode. If so, increment the current alarm times by 1 and control the indoor unit of the air conditioner to end the forced air supply mode.

[0103] In a possible implementation, when generating the audible and visual alarm instruction, the above-mentioned fault processing module 502 is set to:

[0104] Obtain the current alarm cancellation times, and generate an audible and visual alarm instruction based on the alarm duration corresponding to the current alarm cancellation times. The alarm duration decreases as the corresponding current alarm cancellation times increase.

[0105] In a possible implementation, the above-mentioned fault processing module 502 is further set to:

[0106] When the indoor unit of the air conditioner is in the forced air supply mode and an audible and visual alarm cancellation operation is detected, increment the current alarm cancellation times by 1.

[0107] In a possible implementation, the current alarm times and the current alarm cancellation times are stored in a preset memory in the indoor unit of the air conditioner. The preset memory is used to store the current alarm times and the current alarm cancellation times in the case of power failure.

[0108] In a possible implementation, the above-mentioned fault processing module 502 is further set to:

[0109] When the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm times, generate refrigerant leakage fault information based on the identifier of the chamber of the outdoor unit of the air conditioner, and send the refrigerant leakage fault information to the main unit of the wired controller, so that the main unit of the wired controller terminates sending control instructions to the air conditioner where the chamber of the outdoor unit of the air conditioner with the identifier is located.

[0110] In a third aspect of the present application, a computer program product is provided, including computer-readable instructions, which, when running on an electronic device, enable the electronic device to implement the method for handling the refrigerant leakage fault of the outdoor unit of the air conditioner according to the first aspect or any implementation manner of the first aspect.

[0111] In a fourth aspect of the present application, an electronic device is provided, including at least one processor and a memory connected to the processor, wherein:

[0112] The memory is used to store a computer program;

[0113] The processor is used to execute the computer program so that the electronic device can implement the method for handling the refrigerant leakage fault of the outdoor unit of the air conditioner according to the first aspect or any implementation manner of the first aspect.

[0114] In a fifth aspect of the present application, a computer storage medium is provided, and the storage medium carries one or more computer programs, which, when executed by an electronic device, can enable the electronic device to implement the method for handling the refrigerant leakage fault of the outdoor unit of the air conditioner according to the first aspect or any implementation manner of the first aspect.

[0115] In an embodiment of the present application, an electronic device is also provided. Referring to Figure 6 As shown, it shows a schematic structural diagram of an electronic device suitable for implementing the electronic device in the embodiment of the present application. The electronic device in the embodiment of the present application may include, but is not limited to, fixed terminals such as mobile phones, laptop computers, PDAs (Personal Digital Assistants), PADs (Tablet Computers), desktop computers, and the like. Figure 6 The electronic device shown is only an example and should not bring any limitation to the functions and usage scope of the embodiment of the present application.

[0116] As Figure 6 shown, the electronic device may include a processing device (such as a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 602 or the program loaded from the storage device 608 into the random access memory (RAM) 603. When the electronic device is powered on, various programs and data required for the operation of the electronic device are also stored in the RAM 603. The processing device 601, the ROM 602, and the RAM 603 are connected to each other through a bus 604. The input / output (I / O) interface 605 is also connected to the bus 604.

[0117] Typically, the following devices can be connected to the I / O interface 605: input devices 606 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; output devices 607 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 608 including, for example, a memory card, a hard disk, etc.; and a communication device 609. The communication device 609 can allow the electronic device to communicate with other devices wirelessly or wiredly to exchange data. Although Figure 6 an electronic device with various devices is shown, it should be understood that it is not required to implement or have all the shown devices. More or fewer devices can be alternatively implemented or had.

[0118] An embodiment of the present application also provides a computer program product including computer-readable instructions. When the computer-readable instructions run on an electronic device, the electronic device implements any one of the processing methods for refrigerant leakage faults of the outdoor unit of an air conditioner provided by the embodiments of the present application.

[0119] In addition, it should be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, in the attached drawings of the device embodiments provided in the present application, the connection relationship between the modules indicates that they have a communication connection, which can be specifically implemented as one or more communication buses or signal lines.

[0120] Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course, it can also be implemented by dedicated hardware including an application-specific integrated circuit, a dedicated CPU, a dedicated memory, dedicated components, etc. Generally, functions completed by a computer program can be easily implemented by corresponding hardware, and the specific hardware structures for implementing the same function can also be various, such as analog circuits, digital circuits or dedicated circuits, etc. However, for the present application, in more cases, software program implementation is a better implementation manner. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a readable storage medium, such as a floppy disk, a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk or an optical disc of a computer, etc., and includes several instructions to enable a computer device (which can be a personal computer, a training device, or a network device, etc.) to execute the methods described in various embodiments of the present application.

[0121] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product.

[0122] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from a website, computer, training device, or data center to another website, computer, training device, or data center by wire (such as coaxial cable, fiber optic, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a training device or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)), etc.

Claims

1. A method for handling the refrigerant leakage fault of an outdoor unit of an air conditioner, characterized in that, including: collecting the refrigerant concentration in the outdoor unit chamber of the air conditioner; when the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm count, controlling the indoor unit of the air conditioner to be in the forced air supply mode and generating an audible and visual alarm instruction, where the alarm threshold decreases as the corresponding current alarm count increases, the forced air supply mode is an operating mode in which the indoor unit of the air conditioner supplies air to the outdoor unit chamber of the air conditioner, and the audible and visual alarm instruction is used to trigger the alarm module to emit an audible and visual alarm signal; when the indoor unit of the air conditioner is in the forced air supply mode, determining whether the refrigerant concentration is less than the alarm threshold, if so, incrementing the current alarm count by 1 and controlling the indoor unit of the air conditioner to end the forced air supply mode.

2. The method for handling the refrigerant leakage fault of the outdoor unit of the air conditioner according to claim 1, characterized in that, The generating of the audible and visual alarm instruction includes: obtaining the current alarm cancellation count and generating the audible and visual alarm instruction based on the alarm duration corresponding to the current alarm cancellation count, where the alarm duration decreases as the corresponding current alarm cancellation count increases.

3. The method for handling the refrigerant leakage fault of the outdoor unit of an air conditioner according to claim 2, characterized in that, When the indoor unit of the air conditioner is in the forced air supply mode, it further includes: when an audible and visual alarm cancellation operation is detected, incrementing the current alarm cancellation count by 1.

4. The method for handling the refrigerant leakage fault of the outdoor unit of the air conditioner according to claim 1 or 3, characterized in that, The current alarm count and the current alarm cancellation count are stored in a preset memory in the indoor unit of the air conditioner, and the preset memory is used to store the current alarm count and the current alarm cancellation count in case of power failure.

5. The method for handling the refrigerant leakage fault of the outdoor unit of an air conditioner according to claim 1, characterized in that, When the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm count, it further includes: generating refrigerant leakage fault information based on the identifier of the outdoor unit chamber of the air conditioner and sending the refrigerant leakage fault information to the main unit of the wired controller, so that the main unit of the wired controller terminates sending control instructions to the air conditioner where the outdoor unit chamber with the identifier is located.

6. A processing system for refrigerant leakage faults of an outdoor unit of an air conditioner, characterized in that, including: a temperature acquisition module for collecting the refrigerant concentration in the outdoor unit chamber of the air conditioner; a fault handling module for controlling the indoor unit of the air conditioner to be in the forced air supply mode and generating an audible and visual alarm instruction when the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm count, where the alarm threshold decreases as the corresponding current alarm count increases, the forced air supply mode is an operating mode in which the indoor unit of the air conditioner supplies air to the outdoor unit chamber of the air conditioner, and the audible and visual alarm instruction is used to trigger the alarm module to emit an audible and visual alarm signal; the fault handling module is further used to determine whether the refrigerant concentration is less than the alarm threshold when the indoor unit of the air conditioner is in the forced air supply mode, if so, incrementing the current alarm count by 1 and controlling the indoor unit of the air conditioner to end the forced air supply mode.

7. The processing system for refrigerant leakage failure of the outdoor unit of an air conditioner according to claim 6, wherein, The fault handling module is further configured to: generate refrigerant leakage fault information based on the identifier of the outdoor unit chamber of the air conditioner and send the refrigerant leakage fault information to the main unit of the wired controller when the refrigerant concentration is not less than the alarm threshold corresponding to the current alarm count, so that the main unit of the wired controller terminates sending control instructions to the air conditioner where the outdoor unit chamber with the identifier is located.

8. A computer program product, characterized in that, including computer-readable instructions that, when executed on an electronic device, cause the electronic device to implement the method for handling refrigerant leakage faults of the outdoor unit of an air conditioner as described in any one of claims 1 to 5.

9. An electronic device, characterized in that, including at least one processor and a memory connected to the processor, wherein: the memory is used to store a computer program; the processor is used to execute the computer program so that the electronic device can implement the method for handling refrigerant leakage faults of the outdoor unit of an air conditioner as described in any one of claims 1 to 5.

10. A computer storage medium, characterized in that, The storage medium carries one or more computer programs that, when executed by an electronic device, can cause the electronic device to implement the method for handling refrigerant leakage faults of the outdoor unit of an air conditioner as described in any one of claims 1 to 5.

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