An automatic water supply system for a humidifying tank of an air conditioner and an air conditioner

Abstract

This application provides an automatic water supply system for the humidifier tank of an air conditioner and an air conditioner, belonging to the field of air conditioner humidification control technology. The system includes a softened water storage tank and a first controller. The softened water storage tank contains softened water, and a water pipe is provided between the softened water storage tank and the humidifier tank of the air conditioner, with a water pump installed on the water pipe. A second controller is provided inside the air conditioner to control the humidifier tank. The first controller and the second controller are signal-connected, and the first controller is used to control the start and stop of the water pump based on the humidification start signal from the second controller. This application directly delivers softened water to the humidifier tank of the air conditioner, realizing the replacement of softened water in the humidifier tank, avoiding the formation of sediment or scale due to long storage time of softened water in the humidifier tank, greatly reducing the replacement frequency of the humidifier tank, and reducing equipment maintenance costs.

Description

Technical Field

[0001] This application relates to the field of air conditioning humidification control technology, and in particular to an automatic water supply system for the humidification tank of an air conditioner and an air conditioner. Background Technology

[0002] In enterprise data center operations, environmental temperature and humidity control is a core element in ensuring the stable operation of IT equipment. As a key device for regulating the computer room environment, the air conditioning system has strict requirements on the quality of the water supply for its humidification function.

[0003] Air conditioning systems often include humidifier tanks, which generate steam through water electrolysis to humidify the environment. When the concentration of calcium and magnesium ions in the humidifier tank is too high and cannot be softened using conventional methods, severe scaling occurs during steam generation. This scale buildup not only reduces humidification efficiency but can also trigger overheating protection mechanisms in the humidifier tank and cause blockages in the steam pipes. Current solutions involve increasing the frequency of humidifier tank replacements, but this increases maintenance costs. Utility Model Content

[0004] This application provides an automatic water supply system for the humidifier tank of an air conditioner and an air conditioner, aiming to solve the problems of high frequency of humidifier tank replacement and high equipment maintenance costs caused by excessively high concentration of calcium and magnesium ions in the water of the humidifier tank and the inability to soften the water.

[0005] In a first aspect, this application provides an automatic water supply system for the humidification tank of an air conditioner, including a softened water storage tank and a first controller; The softened water storage tank contains softened water, and a water pipe is installed between the softened water storage tank and the humidification tank of the air conditioner. A water pump is installed on the water pipe. The air conditioner is equipped with a second controller to control the humidifier tank; The first controller is connected to the second controller via a signal connection. The first controller is used to control the start and stop of the water pump based on the humidification start signal from the second controller.

[0006] As one example, a solenoid valve is installed on the portion of the water pipe located inside the air conditioner; The first controller is connected to the solenoid valve signal and is used to control the water pump to start and stop based on the humidification start signal from the second controller and the start / stop signal from the solenoid valve.

[0007] As an example, a water level sensor is provided on the softened water storage tank. The first controller is connected to the water level sensor signal. The first controller is used to control the water pump to start and stop based on the water level height of the water level sensor, the humidification start signal of the second controller and the start / stop signal of the solenoid valve.

[0008] As one embodiment, the humidifier tank automatic water supply system also includes a temperature and humidity sensor installed outside the air conditioner, and the temperature and humidity sensor is connected to the first controller.

[0009] As one example, the first controller is an Internet of Things (IoT) controller; The humidifier tank automatic water supply system also includes cloud devices, which include a display screen; The IoT controller communicates with cloud devices through the communication module on the IoT controller.

[0010] As one embodiment, the automatic water supply system for the humidifier tank includes a main control board, which is equipped with a first row of mother components, a first optocoupler, a second optocoupler, and a first controller. The first input terminal and the second input terminal of the first row of mother components are electrically connected to the second controller and the solenoid valve, respectively. The first output terminal and the second output terminal of the first row of mother components are connected to the positive and negative terminals of the input terminal of the first optocoupler, respectively. The first controller is located between the output terminal of the first optocoupler and the input terminal of the second optocoupler. The output terminal of the second optocoupler is connected to the actuator of the water pump.

[0011] As an example, the main control board is also equipped with a relay module, which is located between the output of the second optocoupler and the actuator of the water pump.

[0012] As an example, the main control board is also equipped with a temperature and humidity sensor, and the output terminal of the temperature and humidity sensor is connected to the first input terminal of the first controller.

[0013] As an example, the water level sensor is an ultrasonic sensor module, and the output of the ultrasonic sensor module is connected to the second input of the first controller through the second row of female components on the main control board.

[0014] Secondly, this application also provides an air conditioner, including the aforementioned automatic water supply system for the humidification tank of the air conditioner. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is one of the structural schematic diagrams of the automatic water supply system for the humidification tank of the air conditioner provided in this application; Figure 2 This is one of the circuit schematic diagrams of the automatic water supply system for the humidifier tank provided in this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that, in the description of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. The terms "upper," "lower," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, without limiting the number of objects; for example, a first object can be one or more. Furthermore, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0020] The following is combined Figures 1 to 2 This application describes the automatic water supply system for the humidification tank of the air conditioner and the air conditioner.

[0021] Figure 1This is one of the structural schematic diagrams of the automatic water supply system for the humidification tank of the air conditioner provided in this application.

[0022] like Figure 1 As shown, the automatic water supply system for the humidification tank of the air conditioner provided in this application includes a softened water storage tank 110 and a first controller 120.

[0023] The softened water storage tank 110 is equipped with a water inlet ( Figure 1 The water inlet 1101 is located on the top surface of the softened water storage tank 110. The softened water storage tank 110 contains softened water, which is water that has undergone softening treatment. The concentration of calcium and magnesium in the softened water is controlled within the threshold range, and the hardness, conductivity, etc. of the softened water meet the requirements.

[0024] The softened water storage tank 110 has an outlet at its lower part. A water pipe 140 is connected between the outlet of the softened water storage tank 110 and the input end of the humidification tank 210 inside the air conditioner 200. A water pump 130 is installed on the water pipe 140. After the water pump 130 is started, the softened water in the softened water storage tank 110 is input into the humidification tank 210 under the drive of the water pump 130.

[0025] In one possible implementation, the softened water storage tank 110 and the first controller 120 are located outside the air conditioner 200.

[0026] In another possible implementation, the softened water storage tank 110 and the first controller 120 are located inside the air conditioner, and the air conditioner housing is provided with a water inlet for the softened water storage tank 110.

[0027] like Figure 1 As shown, a solenoid valve 230 is installed on the portion of water pipe 140 located inside air conditioner 200. When solenoid valve 230 is turned on, softened water is delivered to humidifier tank 210 under the pressure of water pump 130. Humidifier tank 210 is used to convert softened water into steam, thereby realizing the humidification function of air conditioner. A second controller 220 is installed inside air conditioner 200 to control the working status of humidifier tank 210 and solenoid valve 230.

[0028] It should be noted that after the air conditioner starts the humidification program, the humidifier tank 210 needs to be filled with water first. Once the water level in the humidifier tank 210 reaches the required level, the humidifier tank 210 will be activated to generate steam, which will humidify the environment.

[0029] In one possible implementation, such as Figure 1 As shown, the first controller 120 is signal-connected to the second controller 220. The first controller 120 is used to control the water pump 130 to start and stop based on the humidification start signal of the second controller 220.

[0030] Specifically, when the second controller 220 determines that a humidification program needs to be started based on the humidity signal from the air conditioner, the second controller 220 sends a humidification start signal (e.g., a high-level signal) to the solenoid valve 230 and the controller 120, and controls the solenoid valve 230 to open. After receiving the humidification start signal, the first controller 120 sends a control signal to the actuator of the water pump 130 to start the water pump 130, so that the softened water in the softened water storage tank 110 is input into the humidification tank 210 through the water pipe 140. When the humidification start signal sent by the second controller 220 to the first controller 120 is interrupted (e.g., when the softened water in the humidification tank reaches the water level threshold), the control signal sent by the first controller 120 to the actuator of the water pump 130 is interrupted, thereby stopping the input of softened water into the humidification tank 210.

[0031] This embodiment of the application directly delivers softened water to the humidification tank of the air conditioner by adding a small amount of hardware such as a softened water storage tank and a first controller. This achieves automated softened water supply to the air conditioner at a lower cost. Based on the humidification start signal of the air conditioner, the softened water in the humidification tank is replenished, realizing the renewal of the softened water in the humidification tank. This avoids the formation of sediment or scale due to long storage time of softened water in the humidification tank, greatly reducing the frequency of humidification tank replacement and reducing equipment maintenance costs.

[0032] In one possible implementation, the first controller 150 is signal-connected to the solenoid valve 230. When the solenoid valve 230 is turned on, a start signal is generated and sent to the first controller 150. The first controller 150 is used to control the start and stop of the water pump based on the humidification start signal from the second controller 220 and the start / stop signal from the solenoid valve 230.

[0033] Specifically, when the air conditioner needs to start the humidification program, the second controller 220 sends a humidification start signal to the first controller 120 and a control signal to the solenoid valve 230, controlling the solenoid valve 230 to open, thus connecting the water pipe 140. In this embodiment, when the first controller 120 simultaneously receives the humidification start signal from the second controller 220 and the start signal (e.g., a high-level signal) from the solenoid valve 230, the first controller sends a control signal to the actuator of the water pump 130, controlling the water pump 130 to start, so that the softened water in the softened water storage tank 110 is input into the humidification tank 210 through the water pipe 140. When the humidification start signal sent by the second controller 220 to the first controller 120 is interrupted and / or the start signal of the solenoid valve 230 is interrupted, the first controller 120 controls the water pump 130 to stop working, thereby stopping the input of softened water into the humidification tank 210.

[0034] In one possible implementation, a water level sensor is provided on the softened water storage tank 110, and a first controller 120 is connected to the water level sensor signal. The first controller 120 is used to control the start and stop of the water pump based on the water level height of the water level sensor, the humidification start signal of the second controller, and the start and stop signal of the solenoid valve.

[0035] Specifically, when the water level in the softened water storage tank 110 detected by the water level sensor is greater than or equal to the threshold, if the humidification start signal from the second controller 220 and the start signal from the solenoid valve 230 are received, the first controller 120 controls the water pump 130 to start, so that softened water is delivered into the humidification tank 210. If the water level in the softened water storage tank 110 detected by the water level sensor is less than the threshold, even if the humidification start signal from the second controller 220 and the start signal from the solenoid valve 230 are received, the first controller 120 will not control the water pump 130 to start. At this time, the first controller 120 sends a low water level alarm message to the system administrator, reminding the system administrator to add softened water to the softened water storage tank 110.

[0036] In one possible implementation, the water level sensor is an ultrasonic sensor module 160 mounted on the outer wall of the softened water storage tank 110, such as... Figure 1 As shown.

[0037] This application embodiment monitors the water level in the softened water storage tank using a water level sensor to ensure that the softened water in the storage tank meets the filling requirements of the humidifier tank, thus avoiding air conditioning humidification malfunctions caused by insufficient water in the softened water storage tank.

[0038] In one possible implementation, the automatic water supply system for the humidifier tank also includes a temperature and humidity sensor 150 located outside the air conditioner 200, which is signal-connected to the first controller 120. The temperature and humidity sensor 150 is used to assist in monitoring the ambient temperature and humidity covered by the air conditioner, preventing malfunctions of the temperature and humidity sensor inside the air conditioner that could cause the humidification program to start when humidification is not needed.

[0039] Specifically, when the first controller receives the humidification start signal from the second controller, if the humidity signal detected by the temperature and humidity sensor 150 does not meet the humidification conditions (for example, the humidity detected by the temperature and humidity sensor 150 is greater than the humidity threshold when the humidification program is started), the temperature and humidity sensor in the air conditioner may malfunction. At this time, the first controller sends a fault alarm signal to the system administrator to remind the system administrator to verify the temperature and humidity information and determine whether the temperature and humidity sensor in the air conditioner has malfunctioned.

[0040] In one possible implementation, the first controller 120 is an IoT controller. Besides interacting with the temperature and humidity sensor 150, water level sensor, water pump 130, second controller 220, and solenoid valve 230 of the humidifier tank automatic water supply system, the IoT controller also has a communication module (e.g., a 4G / 5G dual-mode IoT communication module, a Wi-Fi module, etc.). In this embodiment, the humidifier tank automatic water supply system also includes a cloud device. The IoT controller communicates with the cloud device through its communication module. The cloud device includes a display screen. The IoT controller receives temperature and humidity signals, water level, and the cumulative number of water pump starts transmitted from the IoT controller. The display screen displays the current temperature and humidity signals and their changes (e.g., historical curves), the current water level in the softened water storage tank and its changes (e.g., historical curves), and the cumulative number of water pump starts, for system administrators to view.

[0041] It should be noted that the data processing by the IoT controller is based on existing data processing methods, and this application does not improve upon these methods. The data processing mainly involves simple statistical functions, such as the aforementioned historical change curves.

[0042] This application embodiment uses an IoT controller to communicate with cloud devices and outputs various parameters through the display screen of the cloud devices, so that system administrators can understand the status changes of the humidifier tank automatic water supply system.

[0043] Based on the above, in one possible implementation, the automatic water supply system for the humidifier tank includes a main control board. The main control board is equipped with a first row of mother components, a first optocoupler, a second optocoupler, and a first controller.

[0044] like Figure 2 As shown, the first controller is an IoT main controller, model ESP-32. This IoT main controller can communicate with cloud devices via a communication module based on the MQTT protocol. Furthermore, this model of IoT main controller implements email communication functionality, enabling it to send low-water-level alarm emails to system administrators, thus achieving automatic water level warnings.

[0045] like Figure 2 As shown, the first row of female components includes female connector J4 and female connector J1, which are interlocked to form the female connector assembly. Figure 2In the illustrated embodiment, both connector J4 and connector J1 are HDR1X8 models with the same number of pins, and the pins in the same position are connected for signal transmission. Connector J1 is the main interface of the main control board, which receives the air conditioner signal, 12V power supply, and water pump power supply through connector J4. The main control board connects to an external power supply via connector V1 and is connected to connector J4. The incoming power supply is divided into two paths. One path is a 220V power supply voltage, which controls the on / off state of the water pump power supply through a loop composed of the first connector assembly (specifically the bottom two pins) and other components. The other path provides a voltage conversion module to convert the 220V voltage to 12V DC voltage. The 12V DC voltage output from connector J1 (specifically the top two pins) enters another voltage conversion module, which converts the 12V to 5V. Therefore, the input of this voltage conversion module can provide 12V voltage to other components (such as the relay module and the second optocoupler U2), and the output can provide 5V voltage to other components (such as the ultrasonic module and the IoT main controller).

[0046] The first input terminal and the second input terminal of the first row of mother components are electrically connected to the second controller and the solenoid valve, respectively. The first output terminal and the second output terminal of the first row of mother components are connected to the positive and negative terminals of the input terminal of the first optocoupler, respectively. The first controller is located between the output terminal of the first optocoupler and the input terminal of the second optocoupler. The output terminal of the second optocoupler is connected to the actuator of the water pump.

[0047] Specifically, such as Figure 2 As shown, the four middle pins of the J4 busbar connect to two air conditioners, serving as the input terminals of the first busbar assembly. Two of these pins connect to the same air conditioner. For example, Air Conditioner A Signal 1 and Air Conditioner A Signal 2 are the humidification start signal and solenoid valve start signal of the second controller of Air Conditioner A, respectively; Air Conditioner B Signal 1 and Air Conditioner B Signal 2 are the humidification start signal and solenoid valve start signal of the second controller of Air Conditioner B, respectively. It should be noted that when the automatic water supply system of the humidification tank in this application connects two air conditioning units, these two air conditioning units are either powered by the same power source or are two sets of air conditioning units of the same model and specifications with a shared input.

[0048] Correspondingly, the four pins on the J1 busbar are the output terminals of the first busbar assembly. For example... Figure 2As shown, for each air conditioner, the two output pins of the busbar J1 are sequentially rectified by a full-bridge rectifier circuit and decoupling circuit before being input to the positive and negative terminals of the LED of the first optocoupler U1. The output terminal of the first optocoupler U1 is connected to the first pin IO32 (as the third input terminal) of the IoT main controller. The output terminal IO25 of the IoT main controller is connected to the input terminal (positive terminal of the LED) of the second optocoupler U2. The output terminal of the second optocoupler U2 is connected to the actuator of the water pump. The emitter of the transistor at the output terminal of the first optocoupler U1 is connected to signal ground, and the emitter and collector are connected and then connected to the IoT main controller via resistor R3. The negative terminal of the LED at the input terminal of the second optocoupler U2 is connected to signal ground, and the emitter of the transistor at the output terminal of the second optocoupler U2 is connected to power supply ground.

[0049] like Figure 2 As shown, the two input terminals of the full-bridge rectifier circuit receive the humidification start signal and the solenoid valve start signal, respectively. The positive and negative output terminals of the full-bridge rectifier circuit are connected to the positive and negative input terminals of the decoupling circuit, respectively. An inductor L1 and a resistor R2 are connected in series between the positive input terminal and the positive output terminal of the decoupling circuit. A capacitor C1 and a resistor R1 are connected in parallel between the node between inductor L1 and resistor R2 and the negative output terminal of the decoupling circuit. The positive output terminal of the decoupling circuit is connected to the positive terminal of the LED of the first optocoupler U1, and the negative output terminal of the decoupling circuit is connected to the negative terminal of the LED of the first optocoupler U1.

[0050] This application embodiment integrates electronic components through modular design and hardware logic on the main control board, thereby flexibly adapting relevant components to air conditioners of different brands and expanding the scope of application. Furthermore, this application embodiment introduces the air conditioner's signal through a busbar assembly and avoids direct connection between the IoT main controller and the air conditioner, water pump, etc., via an optocoupler, thus preventing the air conditioner, water pump, etc., from affecting the controller.

[0051] In one possible implementation, the main control board also includes a relay module, which is positioned between the output of the second optocoupler U2 and the actuator of the water pump. The relay module is used to control the start and stop of the water pump based on the output signal of the second optocoupler U2.

[0052] Specifically, such as Figure 2 As shown, the input terminal IN1 of the relay module is connected to the output terminal of the second optocoupler U2. The common pin COM1 and normally open pin NO1 of the relay module are connected to the actuators of the power supply and the water pump respectively through the first busbar assembly. Specifically, the common pin COM1 and normally open pin NO1 of the relay module are connected to two pins of the busbar J1 respectively, and two pins at the same position on the busbar J4 are connected to the actuators of the power supply and the water pump respectively.

[0053] In one possible implementation, when the second optocoupler U2 outputs a high-level signal, the relay is activated, thereby connecting the circuit to the power supply, completing the circuit, and starting the water pump.

[0054] In one possible implementation, the relay module is designated as HW-279.

[0055] This application embodiment uses a relay module to control the water pump and protect the circuit.

[0056] In one possible implementation, the main control board also includes a temperature and humidity sensor (i.e., Figure 1 The temperature and humidity sensor 150 is connected to the first input terminal of the first controller.

[0057] Specifically, Figure 2 The temperature and humidity sensor is shown as a temperature and humidity sensor module with model number SHT31. The serial clock line (SCL) pin and bidirectional serial data line (SDA) pin of the temperature and humidity sensor module are connected to the second pin IO22 and the third pin IO21 of the IoT main controller, respectively (the second pin IO22 and the third pin IO21 serve as the first input terminals of the first controller).

[0058] In this embodiment, the temperature and humidity sensor is directly mounted on the main control board, which shortens the connection distance between the temperature and humidity sensor and the first controller. The structure is compact and helps to reduce the space occupied by the automatic water supply system of the humidifier tank.

[0059] In one possible implementation, the water level sensor is an ultrasonic sensor module, which is mounted on the outer wall of the softened water storage tank. The output of the ultrasonic sensor module is connected to the second input of the first controller via the second row of female components on the main control board.

[0060] like Figure 2 As shown, the ultrasonic sensor module is model HY-SRF05. The trigger control signal input (TRIG) pin and echo signal reception (ECHO) pin of the ultrasonic sensor module are connected to pins IO12 and IO14 of the IoT main controller via the second row of female components on the main control board (pins IO12 and IO14 serve as the second input terminals of the first controller). The second row of female components includes female components J3 and J2, both model HDR1X4, with the same number of pins, and pins in the same position are interconnected.

[0061] In this embodiment, the ultrasonic sensor module on the outside of the main control board transmits signals to the IoT main controller through the second row of mother components. Signal transmission is achieved via signal lines, reducing the complexity of signal transmission. Furthermore, the main control board and the ultrasonic sensor module can be positioned adjacent to each other, thus shortening the signal line length and reducing the space occupied by the automatic water supply system of the humidifier tank.

[0062] based on Figure 2 The circuit diagram shown illustrates that after the IoT main controller receives the ambient temperature and humidity information transmitted by the temperature and humidity sensor module, the water level of the softened water storage tank transmitted by the ultrasonic sensor module, the humidification start signal of the air conditioner, and the start signal of the solenoid valve, it determines whether to control the water pump to start based on these signals (see the descriptions of the above embodiments, for example, outputting a high-level signal to the input of the second optocoupler U2 through the output terminal IO25 to control the water pump to start).

[0063] Based on the above, this application also provides an air conditioner. This air conditioner includes the aforementioned automatic water supply system for the humidifier tank.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An automatic water supply system for the humidifier tank of an air conditioner, characterized in that, Includes a softened water storage tank and a first controller; The softened water storage tank contains softened water, and a water pipe is provided between the softened water storage tank and the humidification tank of the air conditioner. A water pump is provided on the water pipe. The air conditioner is equipped with a second controller to control the humidifier tank; The first controller is signal-connected to the second controller, and the first controller is used to control the water pump to start and stop based on the humidification start signal of the second controller.

2. The automatic water supply system for the humidification tank of an air conditioner according to claim 1, characterized in that, The portion of the water pipe located inside the air conditioner is equipped with a solenoid valve. The first controller is connected to the solenoid valve and is used to control the water pump to start and stop based on the humidification start signal from the second controller and the start / stop signal from the solenoid valve.

3. The automatic water supply system for the humidifier tank of an air conditioner according to claim 2, characterized in that, The softened water storage tank is equipped with a water level sensor. The first controller is connected to the water level sensor. The first controller is used to control the water pump to start and stop based on the water level height of the water level sensor, the humidification start signal of the second controller, and the start / stop signal of the solenoid valve.

4. The automatic water supply system for the humidification tank of an air conditioner according to claim 3, characterized in that, The automatic water supply system of the humidifier tank also includes a temperature and humidity sensor installed outside the air conditioner, and the temperature and humidity sensor is connected to the first controller.

5. The automatic water supply system for the humidification tank of an air conditioner according to claim 4, characterized in that, The first controller is an Internet of Things (IoT) controller; The humidifier tank automatic water supply system also includes a cloud device, which includes a display screen. The IoT controller communicates with the cloud device through the communication module on the IoT controller.

6. The automatic water supply system for the humidification tank of an air conditioner according to claim 4 or 5, characterized in that, The humidifier tank automatic water supply system includes a main control board, which is equipped with a first row of mother components, a first optocoupler, a second optocoupler, and a first controller. The first input terminal and the second input terminal of the first row of busbars are electrically connected to the second controller and the solenoid valve, respectively. The first output terminal and the second output terminal of the first row of busbars are connected to the positive and negative terminals of the input terminal of the first optocoupler, respectively. The first controller is located between the output terminal of the first optocoupler and the input terminal of the second optocoupler. The output terminal of the second optocoupler is connected to the actuator of the water pump.

7. The automatic water supply system for the humidification tank of an air conditioner according to claim 6, characterized in that, The main control board is also equipped with a relay module, which is located between the output end of the second optocoupler and the actuator of the water pump.

8. The automatic water supply system for the humidification tank of an air conditioner according to claim 6, characterized in that, The main control board is also equipped with the temperature and humidity sensor, and the output terminal of the temperature and humidity sensor is connected to the first input terminal of the first controller.

9. The automatic water supply system for the humidifier tank of an air conditioner according to claim 6, characterized in that, The water level sensor is an ultrasonic sensor module, and the output end of the ultrasonic sensor module is connected to the second input end of the first controller through the second row of female components on the main control board.

10. An air conditioner, characterized in that, The automatic water supply system for the humidification tank of an air conditioner as described in any one of claims 1-9.

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