Air conditioner refrigerant leakage fault protection device, control method and air conditioner
By designing refrigerant leakage sensors and motherboards in the air conditioner, and using relay control signals to achieve shutdown operations of internal and external units, the problem of communication-free air conditioners cannot detect refrigerant leakage, reducing the refrigerant leakage rate and fire risk.
Patent Information
- Application Number
- CN202411892089.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-02-14
AI Technical Summary
In the prior art, air conditioning units without communication in the internal and external units cannot detect refrigerant leakage, resulting in continuous operation of the external unit, further accelerating refrigerant leakage and increasing fire risk.
An air-conditioning refrigerant leakage fault protection device is designed, including a refrigerant leakage sensor and a motherboard. The 24V signal is controlled through a relay to realize the shutdown operation of the internal and external units to prevent further leakage of refrigerant.
It effectively reduces the refrigerant leakage rate, avoids fire risk, and solves the problem of refrigerant leakage without communication between internal and external units.
Smart Images
Figure CN119436387A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of air conditioning control, and in particular to an air conditioning refrigerant leakage fault protection device, a control method and an air conditioner. Background Art
[0002] At present, there are a large number of non-communication household air conditioners in the North American market (i.e., air conditioners with no communication between indoor and outdoor units), and many customers only replace the outdoor unit and keep the indoor unit unchanged when upgrading their household air conditioner products due to many factors such as labor costs and installation difficulties. In order to adapt to the use of these North American customers, air conditioner manufacturers have developed units with no communication between indoor and outdoor units. The indoor and outdoor units of this unit are independently operated and controlled without interfering with each other. The opening and closing of the unit is controlled only by the thermostat through the input and output of 24V signals.
[0003] Although this type of unit without communication between indoor and outdoor units can achieve the effect of matching indoor and outdoor units of different brands, the indoor units installed by existing customers cannot detect refrigerant leaks, and the outdoor units of non-communication household units cannot respond to refrigerant leaks in the indoor units. When the indoor unit refrigerant leaks, the continued operation of the outdoor unit will cause the refrigerant to leak more quickly, which is prone to fire risks. Therefore, when flammable refrigerants are promoted in North America, non-communication household units cannot be used, and the indoor and outdoor units can only be replaced, which greatly increases the installation difficulty and installation costs of customers replacing air conditioners.
[0004] Therefore, there is an urgent need for a technical solution for refrigerant leakage detection and fault protection for units without communication between internal and external units. Summary of the invention
[0005] The present application provides an air-conditioning refrigerant leakage fault protection device, a control method and an air-conditioner to solve the problem in the prior art that for units with no communication between the indoor and outdoor units, the indoor unit cannot detect refrigerant leakage, and the outdoor unit without communication cannot respond to refrigerant leakage in the indoor unit. When the refrigerant in the indoor unit leaks, the continuous operation of the outdoor unit will cause the refrigerant to leak more quickly.
[0006] In a first aspect, the present application provides an air conditioner refrigerant leakage fault protection device, comprising: a refrigerant leakage sensor and a main board, wherein the main board is provided with a first relay and a wiring board,
[0007] The Y terminal of the refrigerant leakage sensor is connected to the Y terminal on the wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, and the Y1 terminal on the wiring board is connected to the Y terminal of the air conditioner outdoor unit;
[0008] When the refrigerant leakage sensor detects a refrigerant leakage in the indoor unit of the air conditioner, a Y signal is sent to the main board through the Y terminal of the refrigerant leakage sensor. After receiving the Y signal, the main board controls the first relay to disconnect, so that the Y1 terminal on the main board can no longer send the Y signal, thereby controlling the outdoor unit of the air conditioner to shut down.
[0009] In a possible implementation manner, a second relay is further provided on the main board, a G terminal on the wiring board is connected to a G terminal on the indoor unit of the air conditioner, and the G terminal on the wiring board is connected to an R terminal on the wiring board through the second relay;
[0010] After receiving the Y signal, the main board controls the second relay to close, so that the G terminal on the wiring board sends a G signal to the air conditioner indoor unit, thereby controlling the air conditioner indoor unit to start and operate.
[0011] In one possible implementation, the R terminal on the wiring board is connected to the R terminal of the air conditioner indoor unit, and the C terminal on the wiring board is connected to the C terminal of the air conditioner indoor unit, and the voltage between the R terminal and the C terminal of the air conditioner indoor unit is used to power the air conditioner refrigerant leakage fault protection device.
[0012] In a possible implementation manner, a buzzer is also provided on the main board, and after receiving the Y signal, the main board controls the buzzer to sound an alarm.
[0013] In a possible implementation manner, a third relay is further provided on the main board.
[0014] The W terminal on the wiring board is connected to the W2 terminal on the air conditioner indoor unit, the W2 terminal on the wiring board is connected to the W2 terminal on the refrigerant leakage sensor, and the W terminal on the wiring board is connected to the W2 terminal on the wiring board through the third relay;
[0015] After receiving the Y signal, the main board controls the third relay to disconnect so that the W2 terminal on the wiring board can no longer send out the W2 signal, thereby using the main board to control the air conditioner indoor unit to turn off the electric heating function.
[0016] In a second aspect, the present application provides a control method, which is applied to an air conditioner refrigerant leakage fault protection device, the device comprising: a refrigerant leakage sensor and a main board, including:
[0017] Detecting refrigerant leakage of an indoor unit of an air conditioner using the refrigerant leakage sensor;
[0018] When the refrigerant leakage sensor detects refrigerant leakage in the air-conditioning indoor unit, the mainboard is used to control the air-conditioning outdoor unit corresponding to the air-conditioning indoor unit to shut down, wherein there is no direct communication between the air-conditioning indoor unit and the air-conditioning outdoor unit.
[0019] In a possible implementation manner, the main board includes a first relay and a wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, the Y1 terminal on the wiring board is connected to the Y terminal of the air conditioner outdoor unit, and the use of the main board to control the air conditioner outdoor unit corresponding to the air conditioner indoor unit to stop includes:
[0020] The mainboard is used to control the first relay to be disconnected, so that the Y1 terminal on the mainboard can no longer send out the Y signal, thereby controlling the air conditioner outdoor unit corresponding to the air conditioner indoor unit to stop.
[0021] In a possible implementation, the method further includes:
[0022] When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to start and operate.
[0023] In a possible implementation, the method further includes:
[0024] When the refrigerant leakage sensor detects that a refrigerant leakage occurs in the indoor unit of the air conditioner, the mainboard is used to control a buzzer to sound an alarm.
[0025] In a possible implementation, the method further includes:
[0026] When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to turn off the electric heating function.
[0027] In a third aspect, the present application provides an air conditioner refrigerant leakage fault protection device, which is applied to an air conditioner refrigerant leakage fault protection device, the device comprising: a refrigerant leakage sensor and a mainboard, including:
[0028] A detection module, used to detect the refrigerant leakage of the air conditioner indoor unit using the refrigerant leakage sensor;
[0029] The control module is used to control the air conditioner outdoor unit corresponding to the air conditioner indoor unit to stop by using the main board when the refrigerant leakage sensor detects refrigerant leakage in the air conditioner indoor unit.
[0030] In a possible implementation manner, the main board includes a first relay and a wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, the Y1 terminal on the wiring board is connected to the Y terminal of the air conditioner outdoor unit, and the control module is specifically used for:
[0031] The mainboard is used to control the first relay to be disconnected, so that the Y1 terminal on the mainboard can no longer send out the Y signal, thereby controlling the air conditioner outdoor unit corresponding to the air conditioner indoor unit to stop.
[0032] In a possible implementation manner, the device further includes an external machine control module, which is used to:
[0033] When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to start and operate.
[0034] In a possible implementation manner, the device further includes an alarm control module, which is used to:
[0035] When the refrigerant leakage sensor detects that a refrigerant leakage occurs in the indoor unit of the air conditioner, the mainboard is used to control a buzzer to sound an alarm.
[0036] In a possible implementation, the device further includes a heating function control module, which is used to:
[0037] When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to turn off the electric heating function.
[0038] In a fourth aspect, the present application provides an air conditioner, comprising an air conditioner refrigerant leakage fault protection device, wherein the air conditioner refrigerant leakage fault protection device is the air conditioner refrigerant leakage fault protection device described in any one of the first aspects, or the control method of the air conditioner refrigerant leakage fault protection device includes the control method described in any one of the second aspects.
[0039] In a fifth aspect, the present application provides a device comprising: a processor and a memory, wherein the processor is used to execute an air-conditioning refrigerant leakage fault protection program stored in the memory to implement the control method described in any one of the first aspects.
[0040] In a sixth aspect, the present application provides a storage medium storing one or more programs, and the one or more programs can be executed by one or more processors to implement the control method described in any one of the first aspects.
[0041] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the device provided by the embodiment of the present application includes: a refrigerant leakage sensor and a main board, the main board is provided with a first relay and a wiring board, the Y terminal of the refrigerant leakage sensor is connected to the Y terminal on the wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, and the Y1 terminal on the wiring board is connected to the Y terminal of the air conditioner outdoor unit; when the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the Y terminal of the refrigerant leakage sensor sends a Y signal to the main board through the Y terminal, and after the main board receives the Y signal, the first relay is controlled to disconnect, so that the Y1 terminal on the main board cannot continue to send the Y signal, thereby controlling the air conditioner outdoor unit to stop. Through this solution, when the refrigerant leaks in the air conditioner indoor unit, the first relay on the main board can be used to control the 24v signal (i.e., the Y signal) to stop the air conditioner outdoor unit in time, thereby effectively reducing the refrigerant leakage rate and avoiding the risk of fire. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0043] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0044] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0045] Figure 1 A schematic diagram of the structure of an air-conditioning refrigerant leakage fault protection device provided in an embodiment of the present application;
[0046] Figure 2 A schematic diagram of the structure of another air-conditioning refrigerant leakage fault protection device provided in an embodiment of the present application;
[0047] Figure 3 A flow chart of an embodiment of a control method provided in an embodiment of the present application;
[0048] Figure 4 A block diagram of an embodiment of a control device provided in an embodiment of the present application;
[0049] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0050] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0051] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0052] In order to solve the technical problem in the prior art that for units with no communication between indoor and outdoor units, the indoor unit cannot detect refrigerant leakage, and the outdoor unit without communication cannot respond to refrigerant leakage in the indoor unit, and when the refrigerant leaks in the indoor unit, the continuous operation of the outdoor unit will cause the refrigerant to leak more quickly, the present application provides a control method, which can use the first relay on the main board to control the 24v signal (i.e., Y signal) to shut down the outdoor unit of the air conditioner in time when the refrigerant leaks in the indoor unit of the air conditioner, thereby effectively reducing the refrigerant leakage rate and avoiding the risk of fire.
[0053] Figure 1 This is a schematic diagram of the structure of an air conditioning refrigerant leakage fault protection device provided in an embodiment of the present application. Figure 1 As shown, the device includes: a refrigerant leakage sensor (ie, Figure 1 The thermostat in the embodiment of the present invention) and a main board, wherein the main board is provided with a first relay and a wiring board,
[0054] The Y terminal of the refrigerant leakage sensor is connected to the Y terminal on the wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, and the Y1 terminal on the wiring board is connected to the Y terminal of the air conditioner outdoor unit;
[0055] When the refrigerant leakage sensor detects a refrigerant leakage in the indoor unit of the air conditioner, a Y signal is sent to the main board through the Y terminal of the refrigerant leakage sensor. After receiving the Y signal, the main board controls the first relay to disconnect, so that the Y1 terminal on the main board can no longer send the Y signal, thereby controlling the outdoor unit of the air conditioner to shut down.
[0056] An air-conditioning refrigerant leakage fault protection device provided in an embodiment of the present application is suitable for a scenario where there is no direct communication between an indoor unit of an air-conditioning and an outdoor unit of an air-conditioning.
[0057] In the embodiment of the present application, the air conditioner refrigerant leakage fault protection device is composed of a refrigerant leakage sensor connected to a main board. The refrigerant leakage sensor can be installed at the position of the air conditioner indoor unit evaporator where refrigerant leakage is most easily detected (generally the lower part of the heat exchanger). In this way, when refrigerant leakage occurs in the air conditioner indoor unit, the refrigerant leakage sensor can detect the refrigerant leakage event in time.
[0058] After the refrigerant leakage sensor detects a leakage in the air conditioner indoor unit, it can send a Y signal to the Y terminal on the main board through its own Y terminal to inform the main board of the refrigerant leakage event in the air conditioner indoor unit. After receiving the Y signal sent by the refrigerant leakage sensor, the main board disconnects the first relay between the Y terminal and the Y1 terminal on the terminal board. At this time, the Y1 terminal on the main board cannot send a Y signal, and the air conditioner outdoor unit will shut down after failing to receive the Y signal, thereby effectively reducing the refrigerant leakage rate.
[0059] The device provided by the embodiment of the present application includes: a refrigerant leakage sensor and a main board, the main board is provided with a first relay and a wiring board, the Y terminal of the refrigerant leakage sensor is connected to the Y terminal on the wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, and the Y1 terminal on the wiring board is connected to the Y terminal of the air conditioner outdoor unit; when the refrigerant leakage sensor detects that a refrigerant leakage occurs in the air conditioner indoor unit, a Y signal is sent to the main board through the Y terminal of the refrigerant leakage sensor, and after the main board receives the Y signal, the first relay is controlled to disconnect, so that the Y1 terminal on the main board cannot continue to send a Y signal, thereby controlling the air conditioner outdoor unit to shut down. Through this solution, when a refrigerant leak occurs in the air conditioner indoor unit, the first relay on the main board can be used to control the 24v signal (i.e., the Y signal) to shut down the air conditioner outdoor unit in time, thereby effectively reducing the refrigerant leakage rate and avoiding the risk of fire.
[0060] In another embodiment of the present application, a second relay is further provided on the main board, the G terminal on the wiring board is connected to the G terminal on the air conditioner indoor unit, and the G terminal on the wiring board is connected to the R terminal on the wiring board through the second relay;
[0061] After receiving the Y signal, the main board controls the second relay to close, so that the G terminal on the wiring board sends a G signal to the air conditioner indoor unit, thereby controlling the air conditioner indoor unit to start and operate.
[0062] In the embodiment of the present application, after receiving the Y signal, the main board can also transmit a corresponding signal to the indoor unit of the air conditioner to control the startup and operation of the indoor unit of the air conditioner.
[0063] Specifically, when the mainboard receives the Y signal transmitted by the refrigerant sensor, the second relay between the G terminal and the R terminal on the wiring board is closed. At this time, the G terminal on the mainboard can send a 24v signal (i.e., G signal), and the air conditioner indoor unit will start running after receiving the G signal. In this solution, when a refrigerant leakage event is detected in the air conditioner indoor unit, the mainboard controls the air conditioner indoor unit to start running, which can avoid the accumulation of flammable refrigerant and reduce the risk of fire.
[0064] In another embodiment of the present application, the R terminal on the wiring board is connected to the R terminal of the air conditioner indoor unit, and the C terminal on the wiring board is connected to the C terminal of the air conditioner indoor unit, and the voltage between the R terminal and the C terminal of the air conditioner indoor unit is used to power the air conditioner refrigerant leakage fault protection device.
[0065] In the embodiment of the present application, the R and C terminals on the mainboard are connected to the R and C terminals of the air conditioner indoor unit, and there is a 24V voltage between the R and C terminals of the air conditioner indoor unit to power the air conditioner refrigerant leakage fault protection device, wherein the R terminal of the air conditioner indoor unit is 24V, and the C terminal of the air conditioner indoor unit is 0V. Through this solution, the air conditioner indoor unit can be used to power the air conditioner refrigerant leakage fault protection device without additional power supply.
[0066] In another embodiment of the present application, a buzzer is also provided on the main board, and after receiving the Y signal, the main board controls the buzzer to sound an alarm.
[0067] In the embodiment of the present application, after a refrigerant leakage event occurs in the indoor unit of the air conditioner, the mainboard can use the mainboard to control the buzzer alarm to prompt the user to handle the refrigerant leakage event in time to avoid greater damage.
[0068] In another embodiment of the present application, Figure 2 As shown, the main board is also provided with a third relay.
[0069] The W terminal on the wiring board is connected to the W2 terminal on the air conditioner indoor unit, the W2 terminal on the wiring board is connected to the W2 terminal on the refrigerant leakage sensor, and the W terminal on the wiring board is connected to the W2 terminal on the wiring board through the third relay;
[0070] After receiving the Y signal, the main board controls the third relay to disconnect so that the W2 terminal on the wiring board can no longer send out the W2 signal, thereby using the main board to control the air conditioner indoor unit to turn off the electric heating function.
[0071] In the present application embodiment, Figure 2 As shown, in Figure 1 On the basis of the device shown, a third relay is newly added to the main board, and the terminal board also includes a W terminal and a W2 terminal, wherein the W terminal on the terminal board is connected to the W2 terminal on the air conditioner indoor unit, the W2 terminal on the terminal board is connected to the W2 terminal on the refrigerant leakage sensor, the W terminal on the terminal board is connected to the W2 terminal on the terminal board, and a third relay is connected in the middle.
[0072] When a refrigerant leakage event is detected in the air-conditioning indoor unit, the third relay between the W2 terminal and the W terminal on the main board is disconnected, so that the W2 terminal on the main board cannot send out the W2 signal (where the W2 signal is the electric heating control signal). After failing to receive the W2 signal, the air-conditioning indoor unit will turn off the electric heating function of the indoor unit.
[0073] Through this solution, when a refrigerant leakage event is detected in the air-conditioning indoor unit, the mainboard can be used to control the air-conditioning indoor unit to shut down the electric heating function, thereby avoiding refrigerant combustion and reducing the risk of fire.
[0074] Figure 3 The following is a flow chart of an embodiment of a control method provided in an embodiment of the present application. In one embodiment, the method is applied to an air conditioner refrigerant leakage fault protection device, the device comprising: a refrigerant leakage sensor and a mainboard. Figure 3 As shown, the method comprises the following steps:
[0075] Step 301: Detect refrigerant leakage of an indoor unit of an air conditioner using the refrigerant leakage sensor;
[0076] Step 302: When the refrigerant leakage sensor detects a refrigerant leakage in the air-conditioning indoor unit, the mainboard is used to control the air-conditioning outdoor unit corresponding to the air-conditioning indoor unit to shut down, wherein there is no direct communication between the air-conditioning indoor unit and the air-conditioning outdoor unit.
[0077] For ease of understanding, step 301 and step 302 are described in a unified manner as follows:
[0078] A control method provided in an embodiment of the present application is applied to an air conditioner refrigerant leakage fault protection device, the device comprising: a refrigerant leakage sensor and a main board, and is suitable for a scenario where there is no direct communication between an air conditioner indoor unit and an air conditioner outdoor unit.
[0079] In the embodiment of the present application, the air conditioner refrigerant leakage fault protection device can monitor the refrigerant leakage of the air conditioner indoor unit in real time, and when a refrigerant leakage is detected in the air conditioner indoor unit, the mainboard is used to control the air conditioner outdoor unit corresponding to the air conditioner indoor unit to shut down.
[0080] Specifically, the main board includes a first relay and a wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, and the Y1 terminal on the wiring board is connected to the Y terminal of the air-conditioning outdoor unit. Accordingly, using the main board to control the shutdown of the air-conditioning outdoor unit corresponding to the air-conditioning indoor unit may include the following steps: using the main board to control the first relay to disconnect, so that the Y1 terminal on the main board can no longer send a Y signal, thereby controlling the shutdown of the air-conditioning outdoor unit corresponding to the air-conditioning indoor unit.
[0081] The technical solution provided in the embodiment of the present application can utilize the air conditioner refrigerant leakage fault protection device to promptly control the air conditioner outdoor unit to shut down when a refrigerant leak occurs in the air conditioner indoor unit, thereby effectively reducing the refrigerant leakage rate and avoiding the risk of fire.
[0082] In another embodiment of the present application, the method may further include the following steps:
[0083] When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to start and operate.
[0084] Through the above scheme, when a refrigerant leak occurs in the air-conditioning indoor unit, the air-conditioning refrigerant leakage fault protection device can be used to timely control the start-up and operation of the air-conditioning indoor unit, thereby avoiding the accumulation of flammable refrigerant and reducing the risk of fire.
[0085] In another embodiment of the present application, the method may further include the following steps: when the refrigerant leakage sensor detects a refrigerant leakage in the air conditioner indoor unit, using the mainboard to control a buzzer to alarm.
[0086] Through the above scheme, when a refrigerant leak occurs in the indoor unit of the air conditioner, the air conditioner refrigerant leakage fault protection device can be used to control the buzzer alarm using the mainboard. In this way, the user can be notified of the refrigerant leakage event in the indoor unit of the air conditioner in time, thereby facilitating the user to take corresponding measures in time to avoid greater damage.
[0087] In another embodiment of the present application, the method may further include the following steps:
[0088] When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to turn off the electric heating function.
[0089] Through the above scheme, when a refrigerant leak occurs in the air conditioner indoor unit, the air conditioner refrigerant leakage fault protection device can be used to control the air conditioner indoor unit to turn off the electric heating function, thereby avoiding refrigerant combustion and reducing the risk of fire.
[0090] Figure 4 This is a block diagram of an embodiment of an air conditioning refrigerant leakage fault protection device provided in an embodiment of the present application. Figure 4 As shown, the device comprises:
[0091] A detection module 41, used to detect the refrigerant leakage of the air conditioner indoor unit by using the refrigerant leakage sensor;
[0092] The control module 42 is used to control the air conditioner outdoor unit corresponding to the air conditioner indoor unit to shut down by using the main board when the refrigerant leakage sensor detects refrigerant leakage in the air conditioner indoor unit.
[0093] In a possible implementation manner, the main board includes a first relay and a wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, the Y1 terminal on the wiring board is connected to the Y terminal of the air conditioner outdoor unit, and the control module is specifically used for:
[0094] The mainboard is used to control the first relay to be disconnected, so that the Y1 terminal on the mainboard can no longer send out the Y signal, thereby controlling the air conditioner outdoor unit corresponding to the air conditioner indoor unit to stop.
[0095] In a possible implementation manner, the device further includes an external machine control module, which is used to:
[0096] When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to start and operate.
[0097] In a possible implementation manner, the device further includes an alarm control module, which is used to:
[0098] When the refrigerant leakage sensor detects that a refrigerant leakage occurs in the indoor unit of the air conditioner, the mainboard is used to control a buzzer to sound an alarm.
[0099] In a possible implementation, the device further includes a heating function control module, which is used to:
[0100] When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to turn off the electric heating function.
[0101] The technical solution provided in the embodiment of the present application can utilize the air conditioner refrigerant leakage fault protection device to promptly control the air conditioner outdoor unit to shut down when a refrigerant leak occurs in the air conditioner indoor unit, thereby effectively reducing the refrigerant leakage rate and avoiding the risk of fire.
[0102] like Figure 5 As shown, an embodiment of the present application provides a device, including a processor 111, a communication interface 112, a memory 113 and a communication bus 114, wherein the processor 111, the communication interface 112, and the memory 113 communicate with each other through the communication bus 114.
[0103] Memory 113, used for storing computer programs;
[0104] In one embodiment of the present application, the processor 111 is used to execute the program stored in the memory 113 to implement the control method provided by any of the above method embodiments, including:
[0105] Detecting refrigerant leakage of an indoor unit of an air conditioner using the refrigerant leakage sensor;
[0106] When the refrigerant leakage sensor detects refrigerant leakage in the air-conditioning indoor unit, the mainboard is used to control the air-conditioning outdoor unit corresponding to the air-conditioning indoor unit to shut down, wherein there is no direct communication between the air-conditioning indoor unit and the air-conditioning outdoor unit.
[0107] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the control method provided in any of the aforementioned method embodiments are implemented.
[0108] The device embodiments described above are merely illustrative, wherein 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 on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0109] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a general hardware platform, and of course, by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.
[0110] It should be understood that the terms used in the text 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 in the text 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.
[0111] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.
Claims
1. An air conditioning refrigerant leakage fault protection device, characterized in that: The device comprises: a refrigerant leakage sensor and a main board, wherein the main board is provided with a first relay and a wiring board. The Y terminal of the refrigerant leakage sensor is connected to the Y terminal on the wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, and the Y1 terminal on the wiring board is connected to the Y terminal of the air conditioner outdoor unit; When the refrigerant leakage sensor detects a refrigerant leakage in the indoor unit of the air conditioner, a Y signal is sent to the main board through the Y terminal of the refrigerant leakage sensor. After receiving the Y signal, the main board controls the first relay to disconnect, so that the Y1 terminal on the main board can no longer send the Y signal, thereby controlling the outdoor unit of the air conditioner to shut down.
2. The device according to claim 1, characterized in that The main board is also provided with a second relay, the G terminal on the wiring board is connected to the G terminal on the air conditioner indoor unit, and the G terminal on the wiring board is connected to the R terminal on the wiring board through the second relay; After receiving the Y signal, the main board controls the second relay to close, so that the G terminal on the wiring board sends a G signal to the air conditioner indoor unit, thereby controlling the air conditioner indoor unit to start and operate.
3. The device according to claim 1, characterized in that The R terminal on the wiring board is connected to the R terminal of the air conditioner indoor unit, and the C terminal on the wiring board is connected to the C terminal of the air conditioner indoor unit. The voltage between the R terminal and the C terminal of the air conditioner indoor unit is used to power the air conditioner refrigerant leakage fault protection device.
4. The device according to claim 1, characterized in that The main board is also provided with a buzzer, and after receiving the Y signal, the main board controls the buzzer to alarm.
5. The device according to claim 1, characterized in that The main board is also provided with a third relay. The W terminal on the wiring board is connected to the W2 terminal on the air conditioner indoor unit, the W2 terminal on the wiring board is connected to the W2 terminal on the refrigerant leakage sensor, and the W terminal on the wiring board is connected to the W2 terminal on the wiring board through the third relay; After receiving the Y signal, the main board controls the third relay to disconnect so that the W2 terminal on the wiring board can no longer send out the W2 signal, thereby using the main board to control the air conditioner indoor unit to turn off the electric heating function.
6. A control method, characterized in that: Applicable to an air conditioner refrigerant leakage fault protection device, the device comprises: a refrigerant leakage sensor and a mainboard, the method comprises: Detecting refrigerant leakage of an indoor unit of an air conditioner using the refrigerant leakage sensor; When the refrigerant leakage sensor detects refrigerant leakage in the air-conditioning indoor unit, the mainboard is used to control the air-conditioning outdoor unit corresponding to the air-conditioning indoor unit to shut down, wherein there is no direct communication between the air-conditioning indoor unit and the air-conditioning outdoor unit.
7. The method according to claim 6, characterized in that The main board includes a first relay and a wiring board, the Y terminal on the wiring board is connected to the Y1 terminal on the wiring board through the first relay, the Y1 terminal on the wiring board is connected to the Y terminal of the air conditioner outdoor unit, and the use of the main board to control the air conditioner outdoor unit corresponding to the air conditioner indoor unit to stop includes: The mainboard is used to control the first relay to be disconnected, so that the Y1 terminal on the mainboard can no longer send out the Y signal, thereby controlling the air conditioner outdoor unit corresponding to the air conditioner indoor unit to stop.
8. The method according to claim 6, characterized in that The method further comprises: When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to start and operate.
9. The method according to claim 6, characterized in that The method further comprises: When the refrigerant leakage sensor detects that a refrigerant leakage occurs in the indoor unit of the air conditioner, the mainboard is used to control a buzzer to sound an alarm.
10. The method according to claim 6, characterized in that The method further comprises: When the refrigerant leakage sensor detects that the air conditioner indoor unit has a refrigerant leakage, the mainboard is used to control the air conditioner indoor unit to turn off the electric heating function.
11. An air conditioner, comprising an air conditioner refrigerant leakage fault protection device, characterized in that: The air-conditioning refrigerant leakage fault protection device is the air-conditioning refrigerant leakage fault protection device according to any one of claims 1-5, or the control method of the air-conditioning refrigerant leakage fault protection device includes the control method according to any one of claims 6-10.