Refrigerant leakage control method and device, air conditioner and computer readable storage medium

Abstract

The invention relates to the technical field of air conditioners, and provides a refrigerant leakage control method and device, an air conditioner and a computer readable storage medium. The refrigerant leakage control method is used for the air conditioner, the air conditioner comprises an indoor unit and an outdoor unit, an outer fan and a compressor are arranged in the outdoor unit, an inner fan is arranged in the indoor unit, the air conditioner further comprises a wire controller, and the wire controller is in communication connection with the indoor unit and the outdoor unit. The refrigerant leakage control method of the air conditioner comprises the steps that the refrigerant leakage concentration of an indoor unit is obtained; and according to the condition that the refrigerant leakage concentration of the indoor unit is larger than or equal to the preset leakage protection threshold value, the inner fan is controlled to operate at the preset air gear, and the indoor unit is controlled to be disconnected from sending the power supply signal to the wire controller so that the compressor can be stopped. According to the technical scheme, the technical problem that the outdoor unit cannot respond to the protection program when refrigerant leakage occurs in the indoor unit due to the fact that the indoor unit and the outdoor unit of the American duct type air conditioner in the North America market do not communicate with each other can be at least solved.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, and in particular to a refrigerant leakage control method, device, air conditioner and computer-readable storage medium. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Due to the influence of factors such as climate and building structure, some air conditioners in the existing market, such as in North America, will mainly use R454B refrigerant to replace R410A refrigerant. R454B refrigerant is a flammable refrigerant, so it is necessary to install a refrigerant sensor for refrigerant leakage detection. When the refrigerant leakage value is detected to exceed the safety limit, the indoor and outdoor units need to respond in time according to the established protection procedures.

[0004] In the related art, American-style ducted air conditioners in North America usually have indoor and outdoor units that do not communicate with each other, resulting in the outdoor unit being unable to respond to the protection program when a refrigerant leak occurs in the indoor unit. Summary of the invention

[0005] The purpose of the present invention is to provide a refrigerant leakage control method, device, air conditioner and computer readable storage medium, which are used to at least solve the technical problem that the indoor unit and outdoor unit of the American duct air conditioner for the North American market do not communicate with each other, resulting in the outdoor unit being unable to respond to the protection program when the indoor unit leaks refrigerant. This purpose is achieved through the following technical solutions:

[0006] In a first aspect, the present invention provides a refrigerant leakage control method for an air conditioner, wherein the air conditioner comprises an indoor unit and an outdoor unit, wherein the outdoor unit is provided with an outdoor fan and a compressor, and wherein the indoor unit is provided with an indoor fan. The air conditioner further comprises a wire controller, wherein the wire controller is respectively connected to the indoor unit and the outdoor unit for communication. The refrigerant leakage control method for the air conditioner comprises:

[0007] Obtaining the refrigerant leakage concentration of the indoor unit;

[0008] According to the refrigerant leakage concentration of the indoor unit being greater than or equal to a preset leakage protection threshold, the indoor fan is controlled to operate at a preset wind speed, and the indoor unit is controlled to disconnect the power supply signal sent to the wire controller, so that the compressor is shut down.

[0009] According to the refrigerant leakage control method of the air conditioner provided by the present invention, a wire controller is added, and the wire controller is provided with a control circuit which is communicatively connected with the indoor unit and the outdoor unit, so that the outdoor unit can be communicatively connected with the indoor unit through the wire controller. Then, when refrigerant leakage occurs in the indoor unit and the refrigerant leakage concentration exceeds the safety limit, the outdoor unit can execute the refrigerant protection program in time to reduce the risk of ignition or explosion of the indoor unit.

[0010] Specifically, by obtaining the refrigerant leakage concentration of the indoor unit in real time, when the refrigerant leakage concentration is greater than or equal to the preset leakage protection threshold, it means that the refrigerant leakage concentration in the indoor unit has exceeded the safety limit, and the indoor unit has a safety risk of ignition or explosion. At this time, the indoor fan is controlled to run at the preset wind speed, so that the refrigerant in the indoor unit is blown indoors to reduce the refrigerant concentration in the indoor unit. At the same time, the indoor unit is controlled to disconnect the power supply signal to the wire controller. After the wire controller loses the power supply signal of the indoor unit, it cannot continue to communicate with the outdoor unit, and the compressor is forced to stop, so that the compressor cannot continue to provide refrigerant to the indoor unit, so that the refrigerant leakage concentration in the indoor unit is rapidly reduced under the operation of the indoor fan, thereby reducing the risk of ignition or explosion caused by the refrigerant leakage concentration in the indoor unit exceeding the safety limit.

[0011] It can be understood that when the refrigerant leakage concentration of the indoor unit is less than the preset leakage protection threshold, the indoor unit and the outdoor unit can maintain the current operating state.

[0012] In addition, the refrigerant leakage control method of the air conditioner provided by the present invention may also have the following additional technical features:

[0013] In some embodiments of the present invention, the refrigerant leakage control method of the air conditioner further includes:

[0014] According to the refrigerant leakage concentration of the indoor unit being less than the preset leakage protection threshold, the indoor unit is controlled to keep sending a power supply signal to the wire controller, so that the indoor fan and the compressor maintain the current operating state.

[0015] In some embodiments of the present invention, the air conditioner further includes an alarm, and before the step of controlling the indoor fan to operate at a preset wind speed and controlling the indoor unit to disconnect the power supply signal sent to the wire controller, the refrigerant leakage control method of the air conditioner further includes:

[0016] Control the alarm to start the alarm state.

[0017] In some embodiments of the present invention, the step of controlling the internal fan to operate at a preset wind speed includes:

[0018] The internal fan is controlled to operate at the highest wind speed.

[0019] In some embodiments of the present invention, after the step of controlling the indoor fan to operate at a preset wind speed and controlling the indoor unit to disconnect the power supply signal to the wire controller, the refrigerant leakage control method of the air conditioner further includes:

[0020] The external fan is controlled to operate for a preset time.

[0021] In some embodiments of the present invention, the air conditioner further comprises a power supply device, a power supply circuit is provided between the power supply device and the display of the wire controller, and after the step of controlling the indoor unit to disconnect the power supply signal sent to the wire controller, the refrigerant leakage control method of the air conditioner further comprises:

[0022] Controlling and conducting a power supply circuit between the power supply device and the display of the wire controller.

[0023] In a second aspect, the present invention provides a control device for an air conditioner, comprising: a memory and a processor, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the steps of a refrigerant leakage control method for an air conditioner as described in any one of the implementation methods of the first aspect can be implemented.

[0024] In a third aspect, the present invention provides an air conditioner, comprising:

[0025] An indoor unit and an outdoor unit, wherein the outdoor unit is provided with an external fan and a compressor, and the indoor unit is provided with an internal fan;

[0026] A wired controller, the wired controller is communicatively connected with the indoor unit and the outdoor unit respectively;

[0027] A refrigerant sensor is disposed in the indoor unit;

[0028] an alarm, provided in the indoor unit or the wired controller; and

[0029] As described in the second aspect of the implementation mode, the control device of the air conditioner is electrically connected to the indoor unit, the indoor fan, the wire controller, the compressor, the refrigerant sensor and the alarm, and is used to implement the refrigerant leakage control method of the air conditioner as described in any one of the implementation modes of the first aspect when executing a computer program.

[0030] In some embodiments of the present invention, the air conditioner further comprises:

[0031] A power supply device is configured to be electrically connected to the wire controller when the indoor unit stops sending a power supply signal to the wire controller.

[0032] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, a refrigerant leakage control method for an air conditioner as described in any one of the implementation modes of the first aspect is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0034] Figure 1 A schematic diagram of a flow chart of a refrigerant leakage control method for an air conditioner provided according to some embodiments of the present invention is schematically shown;

[0035] Figure 2 A schematic diagram of a flow chart of a refrigerant leakage control method for an air conditioner provided according to some embodiments of the present invention is schematically shown;

[0036] Figure 3 A schematic diagram of a flow chart of a refrigerant leakage control method for an air conditioner provided according to some embodiments of the present invention is schematically shown;

[0037] Figure 4 A schematic diagram of a flow chart of a refrigerant leakage control method for an air conditioner provided according to some embodiments of the present invention is schematically shown;

[0038] Figure 5 A schematic diagram of a flow chart of a refrigerant leakage control method for an air conditioner provided according to some embodiments of the present invention is schematically shown;

[0039] Figure 6 A schematic diagram of signal line connection between an indoor unit, a wire controller and an outdoor unit provided according to some embodiments of the present invention is schematically shown;

[0040] Figure 7 A schematic structural block diagram of an air conditioner provided according to some embodiments of the present invention is schematically shown;

[0041] Figure 8 A schematic structural block diagram of a control device provided according to some embodiments of the present invention is schematically shown.

[0042] The reference numerals are as follows:

[0043] 100. air conditioner; 200. control device;

[0044] 110, indoor unit; 120, wired controller; 130, outdoor unit; 140, refrigerant sensor; 150, alarm;

[0045] 210, processor; 220, memory;

[0046] 111. Internal fan;

[0047] 21. Power supply signal port; 22. Common port; 23. Internal fan start signal port; 24. Four-way valve reversing signal port; 25. Compressor start signal port; 26. Defrost signal port. DETAILED DESCRIPTION

[0048] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0049] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0050] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0051] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0052] See also Figure 1 The first embodiment of the present invention provides a refrigerant leakage control method for an air conditioner, wherein the air conditioner includes an indoor unit and an outdoor unit, wherein the outdoor unit is provided with an outdoor fan and a compressor, and wherein the indoor unit is provided with an indoor fan. The air conditioner also includes a wire controller, which is respectively connected to the indoor unit and the outdoor unit for communication. The refrigerant leakage control method for the air conditioner includes:

[0053] Step S10: Obtain the refrigerant leakage concentration of the indoor unit.

[0054] Step S20: Determine whether the refrigerant leakage concentration of the indoor unit is greater than or equal to a preset leakage protection threshold.

[0055] Step S30: According to whether the refrigerant leakage concentration of the indoor unit is greater than or equal to the preset leakage protection threshold, the indoor fan is controlled to run at a preset wind speed, and the indoor unit is controlled to disconnect the power supply signal sent to the wire controller to shut down the compressor.

[0056] According to the refrigerant leakage control method of the air conditioner provided by the present invention, a wire controller is added, and the wire controller is provided with a control circuit which is communicatively connected with the indoor unit and the outdoor unit, so that the outdoor unit can be communicatively connected with the indoor unit through the wire controller. Then, when refrigerant leakage occurs in the indoor unit and the refrigerant leakage concentration exceeds the safety limit, the outdoor unit can execute the refrigerant protection program in time to reduce the risk of ignition or explosion of the indoor unit.

[0057] Specifically, by obtaining the refrigerant leakage concentration of the indoor unit in real time, when the refrigerant leakage concentration is greater than or equal to the preset leakage protection threshold, it means that the refrigerant leakage concentration in the indoor unit has exceeded the safety limit, and the indoor unit has a safety risk of ignition or explosion. At this time, the indoor fan is controlled to run at the preset wind speed, so that the refrigerant in the indoor unit is blown indoors to reduce the refrigerant concentration in the indoor unit. At the same time, the indoor unit is controlled to disconnect the power supply signal sent to the wire controller. After the wire controller loses the power supply signal of the indoor unit, it cannot continue to communicate with the outdoor unit, and the compressor is forced to stop, so that the compressor cannot continue to provide refrigerant to the indoor unit, so that the refrigerant leakage concentration in the indoor unit is rapidly reduced under the operation of the indoor fan, thereby reducing the risk of ignition or explosion caused by the refrigerant leakage concentration in the indoor unit exceeding the safety limit.

[0058] See also Figure 2 According to some embodiments of the present invention, the refrigerant leakage control method of the air conditioner further includes:

[0059] Step S40: According to the refrigerant leakage concentration of the indoor unit being less than the preset leakage protection threshold, the indoor unit is controlled to keep sending a power supply signal to the wire controller, so that the indoor fan and the compressor maintain the current operating state.

[0060] In the present embodiment, it can be understood that when the refrigerant leakage concentration of the indoor unit is less than the preset leakage protection threshold, it means that there is no refrigerant leakage in the indoor unit, or the refrigerant leakage concentration is small, and the refrigerant leakage protection program is not triggered at this time. The indoor unit is controlled to continuously send a power supply signal to the wire controller to keep the wire controller powered on, and control the indoor fan to run at the current wind speed, and control the compressor to maintain the current operating state.

[0061] See also Figure 3 According to some embodiments of the present invention, the air conditioner further includes an alarm. Before the step of controlling the indoor fan to operate at a preset wind speed and controlling the indoor unit to send a power-off signal to the wire controller, the refrigerant leakage control method of the air conditioner further includes:

[0062] Step S50: Control the alarm to start the alarm state.

[0063] In this embodiment, illustratively, the air conditioner further includes an alarm, which may be an alarm that uses voice broadcast or emits warning lights, etc.

[0064] When the refrigerant leakage concentration of the indoor unit reaches the preset leakage protection threshold, the alarm state is activated by controlling the alarm to promptly remind the operator to check and repair the indoor unit. When the refrigerant leakage concentration of the indoor unit decreases to less than the preset leakage protection threshold, the alarm is controlled to be turned off.

[0065] According to some embodiments of the present invention, the step of controlling the internal fan to operate at a preset wind speed includes:

[0066] Control the internal fan to run at the highest wind speed.

[0067] In this embodiment, when the refrigerant leakage concentration in the indoor unit exceeds the safety limit, the indoor fan is controlled to operate at the highest wind speed, which helps to improve the efficiency of blowing the leaked refrigerant in the indoor unit into the room, so as to achieve the purpose of quickly reducing the refrigerant leakage concentration in the indoor unit.

[0068] See also Figure 4 According to some embodiments of the present invention, after the steps of controlling the indoor fan to run at a preset wind speed and controlling the indoor unit to disconnect the power supply signal to the wire controller, the refrigerant leakage control method of the air conditioner further includes:

[0069] Step S60: Control the external fan to operate for a preset time.

[0070] In this embodiment, illustratively, the preset duration can be set within the range of 3 minutes to 15 minutes.

[0071] The compressor will generate a lot of heat during operation. When the compressor stops suddenly, the temperature of the outdoor unit is still high. At this time, the outdoor fan is controlled to continue to run for a preset time, for example, 5 minutes, 10 minutes or 15 minutes, to maintain continuous heat dissipation of the outdoor unit after the compressor stops. After running for the preset time, the outdoor fan is controlled to stop running, which helps to ensure the performance of various equipment components in the outdoor unit such as the compressor, outdoor heat exchanger, etc.

[0072] See also Figure 5 According to some embodiments of the present invention, the air conditioner further comprises a power supply device, a power supply circuit is provided between the power supply device and the display of the wire controller, and after the step of controlling the indoor unit to send a power-off signal to the wire controller, the refrigerant leakage control method of the air conditioner further comprises:

[0073] Step S70: controlling and turning on the power supply circuit between the power supply device and the display of the wire controller.

[0074] In this embodiment, by adding a power supply device, when the refrigerant leakage concentration of the indoor unit exceeds the safety limit, the wire controller can no longer receive the power supply signal sent by the indoor unit. At this time, by connecting the power supply circuit between the power supply device and the display of the wire controller, the display of the wire controller can display normally, so that the operator can normally check the connectivity of the signal lines between the wire controller and each port between the indoor unit and the outdoor unit, which can ensure the effective execution of the refrigerant leakage protection program without reducing the user experience.

[0075] According to some embodiments of the present invention, the present invention provides a refrigerant leakage control method for an air conditioner, comprising:

[0076] Obtain the refrigerant leakage concentration of the indoor unit;

[0077] When the refrigerant leakage concentration of the indoor unit is greater than or equal to the preset leakage protection threshold, the control starts the alarm state;

[0078] Control the indoor fan to run at the highest wind speed, and control the indoor unit to disconnect the power supply signal to the wire controller to stop the compressor;

[0079] According to the refrigerant leakage concentration of the indoor unit being less than the preset leakage protection threshold, the indoor unit is controlled to send a power supply signal to the wire controller to keep the indoor fan running at the current wind speed and control the compressor to maintain the current operating state.

[0080] See also Figure 8 According to some embodiments of the present invention, a second aspect of the present invention provides a control device 200 for an air conditioner 100, comprising: a memory 220 and a processor 210, the memory 220 being configured to store a computer program, and when the computer program is executed by the processor 210, the steps of the control method for the air conditioner 100 as in any one of the embodiments of the first aspect can be implemented.

[0081] See also Figure 7 According to some embodiments of the present invention, a third aspect of the present invention provides an air conditioner 100, including an indoor unit 110, an outdoor unit 130, a wire controller 120, a refrigerant sensor 140, an alarm 150 and a control device 200 of the air conditioner 100 as described in the second aspect of the embodiment.

[0082] Among them, the outdoor unit 130 is provided with an outdoor fan and a compressor; the indoor unit 110 is provided with an indoor fan 111; the wire controller 120 is respectively communicated with the indoor unit 110 and the outdoor unit 130; the refrigerant sensor 140 is arranged in the indoor unit 110, and is used for real-time detection of the refrigerant leakage concentration of the indoor unit 110; the alarm 150 is arranged in the indoor unit 110 or the wire controller 120; the control device 200 is electrically connected to the indoor unit 110, the indoor fan 111, the wire controller 120, the compressor, the refrigerant sensor 140 and the alarm 150, and is used to implement the refrigerant leakage control method of the air conditioner 100 as described in any one of the embodiments of the first aspect when executing a computer program.

[0083] According to some embodiments of the present invention, the air conditioner 100 further includes a power supply device, which is configured to be electrically connected to the wire controller 120 when the indoor unit 110 stops sending a power supply signal to the wire controller 120 .

[0084] In this embodiment, illustratively, a 24V power supply is used between the indoor unit 110 and the wire controller 120, and the power supply device is a power supply lower than 24V.

[0085] The power supply device can be a battery or a backup power supply. By adding a power supply device, when the refrigerant leakage concentration of the indoor unit 110 exceeds the safety limit, although the wire controller 120 can no longer receive the power supply signal sent by the indoor unit 110, it can turn on the power supply circuit between the power supply device and the display of the wire controller 120 so that the display of the wire controller 120 can display normally, so that the operator can normally check the connectivity of the signal lines between the wire controller 120 and the various ports between the indoor unit 110 and the outdoor unit 130, which can ensure the effective execution of the refrigerant leakage protection program without reducing the user experience.

[0086] See also Figure 6 According to some embodiments of the present invention, a power supply signal port 21 is provided between the indoor unit 110 and the wire controller 120, and the power supply signal ports 21 are communicatively connected. When the refrigerant leakage concentration of the indoor unit 110 is greater than or equal to a preset leakage protection threshold, the control disconnects the power supply signal port 21 between the indoor unit 110 and the wire controller 120. When the refrigerant leakage concentration of the indoor unit 110 is less than the preset leakage protection threshold, the control connects the power supply signal port 21 between the indoor unit 110 and the wire controller 120.

[0087] See also Figure 6 According to some embodiments of the present invention, the indoor unit 110, the wired controller 120 and the outdoor unit 130 are all provided with a compressor start signal port 25, and the compressor start signal ports 25 are communicatively connected with each other.

[0088] When the refrigerant leakage concentration of the indoor unit 110 is greater than or equal to the preset leakage protection threshold, the control disconnects the connection of the power supply signal port 21 between the indoor unit 110 and the wire controller 120, and the connection of the compressor start signal port 25 between the wire controller 120 and the outdoor unit 130 is disconnected. When the refrigerant leakage concentration of the indoor unit 110 is less than the preset leakage protection threshold, the control connects the connection of the power supply signal port 21 between the indoor unit 110 and the wire controller 120, and the connection of the compressor start signal port 25 between the wire controller 120 and the outdoor unit 130 is connected.

[0089] Furthermore, the indoor unit 110, the wire controller 120 and the outdoor unit 130 are all provided with a common port 22, and the common ports 22 are connected for communication. Specifically, the common ports 22 are grounded with a neutral line, which helps to improve the safety of product use.

[0090] Furthermore, the indoor unit 110 , the wired controller 120 and the outdoor unit 130 are all provided with a defrost signal port 26 , and the defrost signal ports 26 are communicatively connected with each other.

[0091] Furthermore, a four-way valve switching signal port 24 is provided between the indoor unit 110 , the wired controller 120 and the outdoor unit 130 , and the four-way valve switching signal ports 24 are communicatively connected with each other.

[0092] Furthermore, an indoor fan start signal port 23 is provided between the indoor unit 110 and the wire controller 120 , and the indoor fan start signal ports 23 are communicatively connected.

[0093] In this embodiment, it can be understood that the indoor unit 110 is provided with an indoor circuit board, the outdoor unit 130 is provided with an outdoor circuit board, and the wire controller 120 is provided with a wire controller circuit board, wherein the indoor circuit board, the wire controller circuit board and the outdoor circuit board are correspondingly integrated with the above-mentioned signal ports.

[0094] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by the processor 210, implements a refrigerant leakage control method for the air conditioner 100 as described in any one of the implementation methods of the first aspect.

[0095] In this embodiment, examples of computer-readable storage media (a non-exhaustive list) include the following: an electrical connection with one or more wirings (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory, or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM, Compact Disc Read-Only Memory). In addition, the computer-readable storage medium may even be paper or other suitable medium on which the program may be printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering, or processing in other suitable ways as necessary, and then stored in a computer memory.

[0096] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, devices (systems) or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0097] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0098] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0099] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0100] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A refrigerant leakage control method for an air conditioner, the air conditioner comprising an indoor unit and an outdoor unit, the outdoor unit being provided with an outdoor fan and a compressor, the indoor unit being provided with an indoor fan, characterized in that: The air conditioner further comprises a wire controller, which is respectively connected to the indoor unit and the outdoor unit for communication. The refrigerant leakage control method of the air conditioner comprises: Obtaining the refrigerant leakage concentration of the indoor unit; According to the refrigerant leakage concentration of the indoor unit being greater than or equal to a preset leakage protection threshold, the indoor fan is controlled to operate at a preset wind speed, and the indoor unit is controlled to disconnect the power supply signal sent to the wire controller, so that the compressor is shut down.

2. The refrigerant leakage control method of the air conditioner according to claim 1, characterized in that: The refrigerant leakage control method of the air conditioner also includes: According to the refrigerant leakage concentration of the indoor unit being less than the preset leakage protection threshold, the indoor unit is controlled to keep sending a power supply signal to the wire controller, so that the indoor fan and the compressor maintain the current operating state.

3. The refrigerant leakage control method for an air conditioner according to claim 1 or 2, characterized in that: The air conditioner further includes an alarm. Before the step of controlling the indoor fan to operate at a preset wind speed and controlling the indoor unit to send a power-off signal to the wire controller, the refrigerant leakage control method of the air conditioner further includes: Control the alarm to start the alarm state.

4. The refrigerant leakage control method for an air conditioner according to claim 1 or 2, characterized in that: The step of controlling the internal fan to operate at a preset wind speed comprises: The internal fan is controlled to operate at the highest wind speed.

5. The refrigerant leakage control method of an air conditioner according to claim 1 or 2, characterized in that: After the steps of controlling the indoor fan to operate at a preset wind speed and controlling the indoor unit to disconnect the power supply signal sent to the wire controller, the refrigerant leakage control method of the air conditioner further includes: The external fan is controlled to operate for a preset time.

6. The refrigerant leakage control method for an air conditioner according to claim 1 or 2, characterized in that: The air conditioner further includes a power supply device, a power supply circuit is provided between the power supply device and the display of the wire controller, and after the step of controlling the indoor unit to disconnect the power supply signal sent to the wire controller, the refrigerant leakage control method of the air conditioner further includes: Controlling and conducting a power supply circuit between the power supply device and the display of the wire controller.

7. A control device for an air conditioner, characterized in that: include: A memory and a processor, wherein the memory is configured to store a computer program, and when the computer program is executed by the processor, the steps of the refrigerant leakage control method for the air conditioner as described in any one of claims 1 to 6 can be implemented.

8. An air conditioner, characterized in that: include: An indoor unit and an outdoor unit, wherein the outdoor unit is provided with an external fan and a compressor, and the indoor unit is provided with an internal fan; A wired controller, the wired controller is communicatively connected with the indoor unit and the outdoor unit respectively; A refrigerant sensor is disposed in the indoor unit; An alarm device, provided in the indoor unit or the wired controller; and The control device of the air conditioner as claimed in claim 7, wherein the control device is electrically connected to the indoor unit, the indoor fan, the wire controller, the compressor and the refrigerant sensor, and is used to implement the refrigerant leakage control method of the air conditioner as claimed in any one of claims 1 to 6 when executing a computer program.

9. The air conditioner according to claim 8, characterized in that: The air conditioner also includes: A power supply device is configured to be electrically connected to the wire controller when the indoor unit stops sending a power supply signal to the wire controller.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the refrigerant leakage control method of the air conditioner according to any one of claims 1 to 6 is implemented.

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