Power adapter, controller, electric valve device and irrigation and fertilization system

Abstract

The utility model discloses a power adapter, a controller, an electrically operated valve device and an irrigation and fertilization system, and the power adapter comprises an adapter housing which is suitable for being installed in a power supply installation cavity; the power adapter comprises an adaptation unit, the adaptation unit comprises a circuit board, a connector, a first electrode plate and a second electrode plate, the circuit board is installed in an adapter shell, and the connector, the first electrode plate and the second electrode plate are electrically connected with the circuit board; one of the first electrode plate and the second electrode plate is suitable for being in contact with a positive electrode contact terminal in the controller, and the other one of the first electrode plate and the second electrode plate is suitable for being in contact with a negative electrode contact terminal in the controller; the connector is suitable for being in butt joint with an external power source. According to the power adapter based on the scheme, the mains supply or the photovoltaic panel can be directly used for supplying power, infinite cycle operation is achieved, and the problems of poor cruising ability and high manpower maintenance cost are completely solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric valves, and in particular to a power adapter, a controller, an electric valve device, and an irrigation and fertilization system. BACKGROUND

[0002] Electric control valves generally include a valve body and a controller. A motor in the controller can be connected to a valve core in the valve body through a transmission assembly (reducer) to drive the valve core to rotate, thereby achieving the purpose of automatically controlling the opening degree of the valve. The controllers of electric control valves on the current market generally use lithium batteries as the power source. However, this power supply mode is limited by the battery endurance when facing high-frequency operations due to the sharp increase in energy consumption. Often, new batteries need to be replaced within a short period of time of several weeks to a month, which undoubtedly adds inconvenience to the daily management and maintenance work of users. More troublesome is that the battery compartment design of the existing controller only supports the installation of a single lithium battery, which greatly limits the endurance time. If the endurance is to be extended by simply increasing the number of batteries, the volume of the battery compartment must be expanded, which requires corresponding adjustment of the overall layout and structure of the controller. This not only greatly increases the design complexity and manufacturing cost of the product, but also may bring additional challenges and risks in storage, transportation, and subsequent management. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiments of the present utility model is to provide a power adapter, a controller, an electric valve device, and an irrigation and fertilization system, which can solve the above problems existing in the prior art.

[0004] To achieve the above purpose, the present application adopts the following technical solutions:

[0005] On the one hand, a power adapter is provided for installation in a controller of an electric valve. The controller has a power installation cavity. The power adapter comprises:

[0006] an adapter shell adapted to be installed in the power installation cavity;

[0007] an adapter unit comprising a circuit board, a connector, a first electrode sheet, and a second electrode sheet. The circuit board is installed in the adapter shell. The connector, the first electrode sheet, and the second electrode sheet are electrically connected to the circuit board, respectively. One of the first electrode sheet and the second electrode sheet is adapted to contact a positive contact terminal in the controller, and the other is adapted to contact a negative contact terminal in the controller. The connector is adapted to be connected to an external power source.

[0008] Optionally, the circuit board is provided with a power supply adaptation module and a data transmission module, the connector comprises a power supply connector and a data connector, the power supply connector is connected with the power supply adaptation module, and the power supply connector is adapted to be connected with an external power supply; the data connector is connected with the data transmission module, and the data transmission module is adapted to establish a data connection with the controller.

[0009] Optionally, the data transmission module comprises a wireless communication device adapted to wirelessly communicate with the controller to realize data transmission to the controller.

[0010] Optionally, the adapter shell comprises a main shell and a plug-in column, the plug-in column is adapted to be plugged into the power supply mounting cavity, and the circuit board is mounted in the main shell.

[0011] Optionally, one side of the main shell, to which the plug-in column is connected, is provided with a mounting groove, and one end of the plug-in column is provided with a fixing portion, the fixing portion is plugged into the mounting groove to fix the circuit board in the mounting groove.

[0012] Optionally, the first electrode sheet comprises a contact ring and a connecting arm connected with each other, the contact ring is located outside the main shell, and the connecting arm extends inward along the inner wall of the mounting groove and is connected with the circuit board.

[0013] Optionally, the contact ring abuts against an end face of the main shell close to the plug-in column or an end face of the fixing portion away from the main shell.

[0014] Optionally, the inner wall of the mounting groove and / or the outer wall of the fixing portion is provided with a relief groove, and the connecting arm is arranged in the relief groove.

[0015] Optionally, the fixing portion is locked to the main shell by a connecting bolt.

[0016] Optionally, the main shell comprises an annular enclosing wall plate and an inner partition plate fixed to the inner side of the annular enclosing wall plate, one side of the inner partition plate close to the plug-in column and the annular enclosing wall plate form the mounting groove, and the inner partition plate is provided with a connecting hole position corresponding to the connector, and the connector is arranged in alignment with the connecting hole position.

[0017] Optionally, one side of the inner partition plate away from the plug-in column and the annular enclosing wall plate form a connecting groove.

[0018] Optionally, the connecting groove is provided with a detachable sealing plug capable of sealing the connecting hole position.

[0019] Optionally, the inner partition plate is provided with a locking threaded hole on the side away from the plug-in column.

[0020] Optionally, the inner partition plate is provided with a light-transmitting hole, the circuit board is provided with an indicator light, and the mounting slot is provided with a light guide member aligned with the light-transmitting hole and the indicator light.

[0021] Optionally, the second electrode sheet comprises a contact sheet and a wire, the contact sheet is fixed to one end of the insertion column away from the main housing, and two ends of the wire are connected to the contact sheet and the circuit board, respectively.

[0022] Optionally, the insertion column is provided with a wiring channel in the center, and the wire is arranged in the wiring channel.

[0023] Optionally, the outer wall of the main housing is provided with an external thread part, and the external thread part is suitable for threaded connection with the controller.

[0024] Optionally, the root of the external thread part is sleeved with a waterproof ring, and the waterproof ring is suitable for sealed connection with the controller.

[0025] In another aspect, a controller of an electric valve is provided, comprising the above-mentioned power adapter, and the power adapter is arranged in a power installation cavity of the controller.

[0026] In another aspect, an electric valve device is provided, comprising:

[0027] An electric valve comprising a valve body and a controller, the controller is drivingly connected to the valve body, and the controller is provided with a power installation cavity;

[0028] The above-mentioned power adapter, and the power adapter is arranged in the power installation cavity.

[0029] Optionally, further comprising a sensor, the sensor is connected with a signal connector, and the signal connector is connected with the connector on the power adapter in a plug-in manner.

[0030] In another aspect, an irrigation and fertilization system is provided, comprising the above-mentioned electric valve device.

[0031] Optionally, comprising a liquid pipeline and an electric valve device arranged in the liquid pipeline, the liquid pipeline is provided with a sensor for detecting liquid, and the connector comprises a data connector, and the data connector is connected with the sensor to transmit sensing data detected by the sensor to the circuit board.

[0032] The beneficial effects of the present application are as follows: the present invention provides a power adapter that can directly replace the battery in the existing electric valve controller and is directly installed in the power installation cavity of the controller. The adapter unit has an adapter unit with a connector. During on-site installation, the power supply connector of the mains or photovoltaic panel can be directly plugged into the connector. The voltage regulation and rectification function of the adapter unit is used to adjust the mains or photovoltaic panel power supply to a condition suitable for the controller and then provide it to the controller, thereby realizing the function of supplying power to the controller. Obviously, compared with the traditional method of using a single battery for power supply, the power adapter based on this solution can directly use the mains or photovoltaic panel for power supply, which realizes infinite cycle operation and completely overcomes the problems of poor endurance and high labor maintenance costs.

[0033] Another major advantage of this power adapter is its high compatibility. It can be directly installed into existing electric valve controllers, eliminating the need for large-scale valve modifications or production line adjustments, effectively reducing upgrade costs during the production phase. Users can simply replace existing batteries to enjoy the convenience and efficiency of the power adapter, significantly reducing the barriers to entry and costs associated with equipment upgrades. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present application is further described in detail below with reference to the accompanying drawings and examples.

[0035] Figure 1 This is one of the structural diagrams of the power adapter described in the embodiment of the present application;

[0036] Figure 2 This is the second structural diagram of the power adapter according to the embodiment of the present application;

[0037] Figure 3 This is an exploded diagram of the power adapter according to an embodiment of the present application;

[0038] Figure 4 A cross-sectional view of the power adapter according to an embodiment of the present application;

[0039] Figure 5 This is a structural diagram of the connection between the adapter unit and the main housing according to an embodiment of the present application;

[0040] Figure 6 for Figure 5 a cross-sectional view of the structure shown;

[0041] Figure 7 This is a structural diagram of the connection between the adapter unit and the plug-in column according to an embodiment of the present application;

[0042] Figure 8 for Figure 7 a cross-sectional view of the structure shown;

[0043] Figure 9 Figure 1 is a diagram of the power adapter with a sealing plug installed according to an embodiment of the present application;

[0044] Figure 10 Figure 2 is a diagram of the external connector according to an embodiment of the present application;

[0045] Figure 11 Figure 3 is a diagram of the electric valve device according to an embodiment of the present application;

[0046] Figure 12 Figure 4 is a diagram of the controller according to an embodiment of the present application;

[0047] Figure 13 Figure 5 is a diagram of the controller housing according to an embodiment of the present application;

[0048] Figure 14 Figure 6 is an exploded diagram of the valve body according to an embodiment of the present application;

[0049] Figure 15 Figure 7 is a diagram of the irrigation and fertilization system according to an embodiment of the present application;

[0050] Figure 16 Figure 8 is a sectional view of the valve body according to an embodiment of the present application.

[0051] In the drawings:

[0052] 1. power adapter; 11. adapter housing; 111. main housing; 1111. annular wall plate; 1112. inner partition plate; 11121. connecting hole; 11122. light transmission hole; 1113. mounting groove; 1114. connecting groove; 1115. external thread part; 112. plug-in column; 1121. fixed part; 11211. hook; 1122. wiring channel; 113. waterproof ring; 114. connecting bolt; 115. sealing plug; 12. adapter unit; 121. circuit board; 1211. indicator light; 122. connector; 123. first electrode sheet; 1231. contact ring; 1232. connecting arm; 124. second electrode sheet; 1241. contact sheet; 1242. wire; 125. light guide; 2. external connector; 21. connecting flange; 22. fastening screw; 23. sealing ring; 3. electric valve; 31. controller; 311. controller housing; 3111. power supply mounting cavity; 312. positive contact terminal; 313. negative contact terminal; 32. valve body; 321. valve housing; 3211. water inlet; 3212. first water outlet; 3213. second water outlet; 322. valve core; 4. fertilizer storage container; 41. water inlet pipeline; 42. liquid outlet pipeline; 51. main water inlet pipeline; 52. main water outlet pipeline; 53. multi-way connector. DETAILED DESCRIPTION

[0053] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application are further described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0054] In the description of the present application, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] In the present application, unless explicitly defined and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0056] The electric control valve generally comprises a valve body and a controller, and a motor in the controller can be connected with a valve core in the valve body through a transmission assembly (reducer), so as to realize the purpose of automatically controlling the opening of the valve by driving the valve core to rotate. The controller of the electric control valve on the current market generally uses lithium battery as the power source. However, this power supply mode is limited by the battery endurance when facing high frequency operation due to the sharp increase of energy consumption, and often needs to replace new battery in a short time of several weeks to one month, which undoubtedly adds inconvenience to the daily management and maintenance work of the user. More troublesome is that the battery compartment design of the existing controller only supports the installation of single lithium battery, which greatly limits the endurance time. If the endurance is prolonged by simply increasing the number of batteries, the volume of the battery compartment must be expanded, and then the overall layout and structure of the controller must be adjusted accordingly, which not only greatly improves the design complexity and manufacturing cost of the product, but also may bring additional challenges and risks in storage, transportation and subsequent management.

[0057] In order to overcome the above technical problems, a power adapter 1 is provided for mounting on a controller 31 of an electric valve 3, and the power adapter 1 according to the present embodiment can realize the use of a power supply with unlimited endurance such as commercial power or a photovoltaic panel to supply power to the controller 31, thereby solving the problems of poor endurance and high labor maintenance cost of the conventional electric valve 3.

[0058] With reference to Figures 1-14 The power adapter 1 provided by the present embodiment includes an adapter housing 11 and an adapter unit 12, the adapter housing 11 is adapted to be mounted in the power installation cavity 3111; the adapter unit 12 includes a circuit board 121, a connector 122, a first electrode sheet 123 and a second electrode sheet 124, the circuit board 121 is mounted in the adapter housing 11, the connector 122, the first electrode sheet 123 and the second electrode sheet 124 are electrically connected with the circuit board 121 respectively; one of the first electrode sheet 123 and the second electrode sheet 124 is adapted to contact with the positive contact terminal 312 in the controller 31, and the other is adapted to contact with the negative contact terminal 313 in the controller 31; the connector 122 is adapted to be connected with an external power supply.

[0059] The adapter housing 11 needs to be able to be mounted into the power installation cavity 3111 of the controller, so its specific form needs to be reasonably set in combination with the shape of the power installation cavity 3111, so that the power adapter 1 can be reliably mounted on the controller 31 when applied, and the first electrode sheet 123 and the second electrode sheet 124 in the power adapter 1 can accurately contact the original positive contact terminal 312 and the negative contact terminal 313 in the controller 31 after installation.

[0060] One of the first electrode sheet 123 and the second electrode sheet 124 is a positive electrode sheet, and the other is a negative electrode sheet, and in some embodiments, the structure and position of the original positive contact terminal 312 and the negative contact terminal 313 in the existing controller 31 can be directly set according to the structure and position of the original positive contact terminal 312 and the negative contact terminal 313 in the existing controller 31. Alternatively, the positions of the positive contact terminal 312 and the negative contact terminal 313 in the existing controller 31 can be simply adjusted to simplify the setting difficulty of the first electrode sheet 123 and the second electrode sheet 124 in the power adapter 1, while ensuring the reliability of the contact between the electrode sheet and the contact terminal after installation. In other words, during implementation, the existing controller 31 can be simply designed and adjusted to optimize the mounting structure of the power adapter 1, or the existing design of the controller 31 can be directly set to meet the installation requirements of the power adapter 1 without adjusting the existing design of the controller 31.

[0061] The circuit board 121 in the adaptation unit 12 is a core element, and can be reasonably set according to the functions required in actual application, for example, any one or more of the functions of voltage conversion, current regulation, power protection, power isolation and power management can be selected. Specifically, voltage conversion refers to the adaptation unit 12 being able to convert alternating current of different voltage standards into direct current required by the device to ensure that the device works normally at a specific voltage. Current regulation refers to the adaptation unit 12 being able to adjust the output current according to the needs of the electronic device to meet the power requirements of different devices. Power protection refers to the adaptation unit 12 having functions such as overload protection, short circuit protection and overheat protection, which can automatically cut off the power supply when the device is abnormal or short-circuited to prevent damage to the device or cause safety accidents such as fire. Power isolation refers to the adaptation unit 12 isolating the input power from the output power through components such as transformers to prevent current leakage or electromagnetic interference and improve the safety and stability of the electronic device. Power management refers to the adaptation unit 12 being able to monitor the use of the power supply to achieve energy saving and prolong the service life of the device.

[0062] The adaptation unit 12 of the present scheme is provided with a connector 122, which is specifically used for connecting with the external connector 2 to achieve the purpose of current or signal transmission. For example, one end of the cable connected with the photovoltaic panel or the mains is connected with the external connector 2, which is matched with the connector 122 in the adaptation unit 12. In field application, the user can directly plug the external connector 2 into the connector 122 of the adaptation unit 12 to realize the function of the photovoltaic panel or the mains supplying power to the power adapter 1. In specific implementation, the connector 122 can arbitrarily select an existing protocol interface, such as a Type-C interface, a USB interface, etc.

[0063] In summary, the power adapter 1 based on the present embodiment can directly replace the battery in the controller 31 of the existing electric valve 3 and is directly installed in the power installation cavity 3111 of the controller 31. The power adapter 1 is provided with an adaptation unit 12, and the adaptation unit 12 is provided with a connector 122. In field installation, the power supply connector of the mains or the photovoltaic panel can be directly plugged into the connector 122. The mains or the photovoltaic panel is adjusted by the voltage regulation and rectification function of the adaptation unit 12 to provide power to the controller 31 under conditions suitable for the controller 31, thereby realizing the function of supplying power to the controller 31. Obviously, compared with the traditional single-battery power supply mode, the power adapter 1 based on the present scheme can directly utilize the mains or the photovoltaic panel for power supply, which realizes infinite cycle operation and completely overcomes the problems of poor endurance and high labor maintenance cost.

[0064] In addition, the power adapter 1 has high compatibility, which is another advantage. The power adapter 1 can be directly installed in the controller 31 of the existing electric valve 3, without the need for large-scale modification or production line adjustment of the electric valve 3 itself, thereby effectively reducing the update cost in the production stage. For users, only the original battery needs to be replaced, and the convenience and efficiency brought by the power adapter 1 can be enjoyed, thereby greatly reducing the threshold and cost of equipment update.

[0065] In an embodiment, the circuit board 121 is provided with a power adaptation module and a data transmission module, the connector 122 includes a power connector and a data connector, the power connector is connected with the power adaptation module, and the power connector is adapted to be connected with an external power supply; the data connector is connected with the data transmission module, and the data transmission module is adapted to establish data connection with the controller 31.

[0066] The power adaptation module is used to realize the functions of power transmission control and adjustment, such as any one or more of the above-mentioned voltage conversion, current regulation, power protection, power isolation and power management. In use, the external connector 2 connected to the power supply such as a commercial power supply or a photovoltaic panel can be plugged into the power connector to realize power supply. The data transmission module is used to receive external data and transmit it to the controller 31, so as to realize the communication between the controller 31 and external devices. The signal transmission mode between the data transmission module and the controller 31 can be wireless communication or wired communication. In use, the external connector 2 connected to the sensor can be plugged into the data connector to realize communication.

[0067] In the application of the electric valve 3, flow sensors, pressure sensors, conductivity sensors, temperature sensors and the like are usually arranged. The flow sensor is used to detect the flow of liquid, the pressure sensor is used to detect the pressure, the conductivity sensor is used to detect the conductivity of liquid, and the like. In some special application scenarios, such as irrigation and fertilization applications, an EC / PH sensor is arranged to detect the EC value and PH value of the fertilizer solution. These sensors usually need to establish communication with the controller 31 to upload the detection data to the controller 31 in real time, so that the controller 31 can automatically control in combination with the running condition. In view of this, the data transmission module is further arranged on the circuit board 121 of the power adapter 1. The data transmission module can establish data connection with the controller 31. Therefore, in application, the external connector 2 connected to the signal line end portion of the sensor can be plugged into the data connector of the power adapter 1, and the data is uploaded to the controller 31 through the power adapter 1, so as to realize the functions of communication and data transmission between the controller 31 and the sensor.

[0068] Based on the above embodiment, by integrating the power adapter module and the data transmission module on the circuit board 121 of the power adapter 1, and corresponding power connectors and data connectors, the integration design of power supply and data transmission is realized, which not only reduces the complexity and space occupation of the equipment, but also simplifies the installation and connection process, and the user only needs to use one power adapter 1 to meet the power supply and sensor data transmission needs of the electric valve 3 door. The integrated design makes the maintenance and upgrading of the system more simple, for example, if the sensor needs to be replaced or upgraded, only the connection between the sensor and the power adapter 1 needs to be handled, without the need to make large-scale changes to the entire system; in addition, this design also facilitates future function expansion, such as adding more types of sensors or improving data transmission rate.

[0069] In an embodiment, the data transmission module includes a wireless communication device adapted to wirelessly communicate with the controller 31 to achieve data transmission to the controller 31.

[0070] The data transmission module and the controller 31 use wireless communication, compared with the wired communication mode, the wireless communication mode eliminates the need for data transmission lines, which means that there is no need to lay complex lines during installation, and there is no need to add additional data transmission lines in the power supply installation cavity 3111 of the controller 31, which not only simplifies the installation steps and reduces the installation cost, but also reduces the potential failure points caused by line aging, damage or improper maintenance, at the same time, the wireless communication mode also facilitates the later maintenance and troubleshooting, because there is no need to check complex line connections. Moreover, the existing controller 31 generally integrates wireless communication function, which can directly establish communication with the data transmission module.

[0071] Optionally, the wireless communication device and the controller 31 establish communication through Bluetooth technology. It has the advantage of low cost, and is suitable for the near distance transmission needs of the power adapter 1 and the controller 31.

[0072] In an embodiment, the adapter housing 11 includes a main housing 111 and a plug-in column 112, the plug-in column 112 is adapted to be plugged into the power supply installation cavity 3111, and the circuit board 121 is installed in the main housing 111.

[0073] The adapter shell 11 is provided with a main shell 111 and a plug-in column 112, and the plug-in column 112 is specifically adapted to be plugged into the power installation cavity 3111 of the existing controller 31, so that the first electrode sheet 123 and the second electrode sheet 124 in the power adapter 1 can accurately contact the positive contact terminal 312 and the negative contact terminal 313 in the original controller 31 after installation. The adapter shell 11 of the present scheme is provided with the plug-in column 112, which can better adapt to the structure of the power installation cavity 3111 and realize reliable electrical contact; the main shell 111 is provided, and the main shell 111 is located outside the power installation cavity 3111 after installation, which can provide sufficient installation space for the circuit board 121.

[0074] In an embodiment, in combination with Figure 3 and Figure 4 , one side of the main shell 111 connected with the plug-in column 112 is provided with a mounting groove 1113, and one end of the plug-in column 112 is provided with a fixing portion 1121, which is plugged into the mounting groove 1113 to fix the circuit board 121 in the mounting groove 1113.

[0075] The mounting groove 1113 provided on the main shell 111 provides installation space for the circuit board 121, which can provide stable protection for the circuit board 121 to realize reliable work of the circuit board 121. Meanwhile, the fixing portion 1121 cooperating with the mounting groove 1113 is arranged at one end of the plug-in column 112, the fixing portion 1121 is plugged into the mounting groove 1113 to realize reliable connection of the plug-in column 112 and the main shell 111, and the circuit board 121 can also be supported and fixed based on the installation of the plug-in column 112, which enhances the reliability of the installation of the circuit board 121; when installing the circuit board 121, no complex operation or adjustment is needed, only the fixing portion 1121 needs to be aligned with the mounting groove 1113 and inserted gently, which has the advantage of simple installation process.

[0076] In specific implementation, optionally, the circuit board 121 and the fixing portion 1121 are respectively installed in the mounting groove 1113, at this time, there is no hard connection relationship between the circuit board 121 and the fixing portion 1121, during assembly, the circuit board 121 is first installed in the mounting groove 1113, then the fixing portion 1121 of the plug-in column 112 is aligned with the mounting groove 1113 and inserted for installation, with the installation of the plug-in column 112 completed, the circuit board 121 is also tightly fixed in the mounting groove 1113.

[0077] In another alternative, the circuit board 121 is fixed to the fixing portion 1121, in which case the circuit board 121 and the fixing portion 1121 have a hard connection relationship. In assembly, the circuit board 121 is first connected and fixed to the fixing portion 1121, and then the end of the insertion post 112 with the circuit board 121 is aligned with the installation slot 1113 and inserted into the installation slot 1113, and with the installation of the insertion post 112 completed, the fixing portion 1121 is fixed in the installation slot 1113. Further alternatively, referring to Figure 7 The fixing portion 1121 is provided with a plurality of buckles 11211 arranged around the installation position of the circuit board 121, and the circuit board 121 is locked on the fixing portion 1121 by the buckles 11211 buckling the peripheral portion of the circuit board 121.

[0078] In an embodiment, in combination with Figures 5-8 The first electrode sheet 123 includes a contact ring 1231 and a connecting arm 1232 connected to each other, the contact ring 1231 is located outside the main housing 111, and the connecting arm 1232 extends inward along the inner wall of the installation slot 1113 and is connected to the circuit board 121.

[0079] The contact ring 1231 is located outside the main housing 111, so that it can smoothly contact the positive contact terminal 312 or the negative contact terminal 313 in the power supply installation cavity 3111; and the connecting arm 1232 extends inward along the inner wall of the installation slot 1113 and is finally connected to the circuit board 121. The contact ring 1231 is designed outside the main housing 111, which enables it to make direct electrical connection with the positive contact terminal 312 or the negative contact terminal 313. The connecting arm 1232 extends along the inner wall of the installation slot 1113, which not only ensures the continuity of the electrical connection, but also avoids interference with other components inside the main housing 111. The connecting arm 1232 is finally connected to the circuit board 121, ensuring the electrical connection between the first electrode sheet 123 and the circuit board 121, which can be achieved by welding, crimping or other reliable electrical connection methods.

[0080] The first electrode sheet 123 of this structure can not only connect with the circuit board 121 inside the installation slot 1113, but also extend outside the main housing 111 to contact and connect with the controller 31, and has the advantages of simple installation and good reliability. In specific applications, if the first electrode sheet 123 is set as a positive electrode sheet, a positive contact terminal 312 capable of directly contacting the first electrode sheet 123 should be arranged at the open end of the power supply installation cavity 3111 of the controller 31, so that the first electrode sheet 123 can stably contact the positive contact terminal 312 after the power adapter 1 is installed.

[0081] In an embodiment, in combination with Figure 5The contact ring 1231 abuts against the end face of the main housing 111 near the insertion column 112, or abuts against the end face of the fixed part 1121 facing away from the main housing 111.

[0082] Specifically, the end face of the main housing 111 near the insertion column 112, or the end face of the fixed part 1121 facing away from the main housing 111, are both perpendicular to the insertion direction of the insertion column 112. The contact ring 1231 in contact with the two end faces can be reliably supported, so that the contact ring 1231 can be positively pressed against the positive contact terminal 312 or the negative contact terminal 313 on the controller 31 after installation, that is, this way can provide good electrical contact and stable fixation, which helps to improve the reliability of electrical connection and reduce equipment failure caused by poor contact or looseness.

[0083] In an embodiment, the inner wall of the installation slot 1113 and / or the outer wall of the fixed part 1121 is provided with a relief groove, and the connecting arm 1232 is arranged in the relief groove.

[0084] By designing the relief groove to accommodate the connecting arm 1232, the interference problem between the connecting arm 1232 and the inner wall of the installation slot 1113 or the outer wall of the fixed part 1121 is effectively avoided, thereby ensuring the smooth progress of the installation process. At the same time, after the connecting arm 1232 is embedded in the relief groove, its stability is significantly enhanced, which helps to reduce the risk of loosening or damage of the connecting arm 1232 caused by vibration or impact.

[0085] In an embodiment, the fixed part 1121 is locked to the main housing 111 by a connecting bolt 114.

[0086] The use of the connecting bolt 114 ensures the reliable connection between the fixed part 1121 and the main housing 111. The bolt connection has high strength and stability, and can maintain the tightness of the connection for a long time, reducing equipment failure caused by loose connection. The bolt connection has the characteristics of easy installation and maintenance, and the installer can easily tighten and remove the bolt using standard tools, which is convenient for equipment assembly, debugging and maintenance.

[0087] In specific implementation, optionally, a threaded hole is arranged in the main housing 111 inside the installation slot 1113, and corresponding hole positions are arranged on the circuit board 121 and the fixed part 1121 respectively. During installation, the connecting bolt 114 is screwed into the threaded hole in the main housing 111 after passing through the fixed part 1121 and the circuit board 121.

[0088] Optionally, a protruding buckle is arranged on the outer wall of the fixing part 1121, and a buckle hole is arranged on the inner wall of the mounting groove 1113 of the main shell 111 in correspondence with the protruding buckle. During installation, the protruding buckle of the fixing part 1121 is buckled with the buckle hole, so as to realize the pre-fixing of the connection between the fixing part 1121 and the main shell 111.

[0089] In an embodiment, referring to Figures 5-6 , the main shell 111 includes an annular surrounding wall plate 1111 and an inner partition plate 1112 fixed to the inner side of the annular surrounding wall plate 1111. The inner partition plate 1112 is close to one side of the plug-in column 112 and forms the mounting groove 1113 with the annular surrounding wall plate 1111. The inner partition plate 1112 is provided with a connecting hole 11121 corresponding to the connector 122, and the connector 122 is arranged in alignment with the connecting hole 11121.

[0090] By tightly combining the annular surrounding wall plate 1111 and the inner partition plate 1112, a compact and solid main shell 111 structure is formed. This design not only saves space, but also improves the overall strength and stability of the device. Optionally, the annular surrounding wall plate 1111 and the inner partition plate 1112 are integrally formed, such as integrally injection molded, integrally machined, etc.

[0091] The connecting hole 11121 corresponding to the connector 122 is arranged on the inner partition plate 1112, which provides the necessary space for the connection between the external connector 2 and the connector 122 on the circuit board 121.

[0092] In an embodiment, referring to Figure 6 , the inner partition plate 1112 is away from the plug-in column 112 and forms a connecting groove 1114 with the annular surrounding wall plate 1111.

[0093] The connecting groove 1114 is formed by the inner partition plate 1112 away from the plug-in column 112 and the annular surrounding wall plate 1111. This design ingeniously utilizes the space inside the main shell 111 to provide a special area for the plug-in of the external connector 2. The area can accommodate the external connector 2 when plugged in, and can provide certain physical protection for the external connector 2, ensuring stable and reliable connection between the external connector 2 and the connector 122 on the circuit board 121.

[0094] In an embodiment, the connecting groove 1114 is provided with a detachable sealing plug 115, and the sealing plug 115 can seal the connecting hole 11121.

[0095] Specifically, the sealing plug 115 can be tightly plugged into the connecting groove 1114, so as to achieve the protective sealing of the connecting hole 11121 and the connector 122 inside the connecting hole 11121, and avoid the problem of water entering the connector 122 when the external connector 2 is not connected.

[0096] In use, when it is needed to plug in the external connector 2, the corresponding sealing plug 115 is taken out, so as to expose the connector 122, and enable the external connector 2 to be smoothly plugged in. When the external connector 2 is not plugged in, the sealing plug 115 is directly plugged into the sealing groove.

[0097] In an embodiment, the inner partition plate 1112 is provided with a locking threaded hole on a side away from the plug-in column 112.

[0098] The locking threaded hole is arranged on the inner partition plate 1112, so that after the external connector 2 is plugged in, the external connector 2 can be locked to the main shell 111 by using the fastening screw 22, so as to guarantee the long-term stable connection.

[0099] Optionally, referring to Figure 10 , the external connector 2 comprises a connecting flange 21 and a fastening screw 22, the connecting flange 21 is provided with a through hole, the inner partition plate 1112 of the main shell 111 is provided with a corresponding locking threaded hole, and the fastening screw 22 passes through the connecting flange 21 and is threadedly locked to the inner partition plate 1112, so as to reliably lock the abutted external connector 2 to the main shell 111, which can guarantee the long-term reliable connection between the external connector 2 and the power adapter 1.

[0100] Further, the external connector 2 is sleeved with a sealing ring 23, and the sealing ring 23 tightly contacts the periphery of the connecting hole 11121 on the inner partition plate 1112 when abutting, so as to obtain reliable waterproof performance.

[0101] In an embodiment, referring to Figure 6 , the inner partition plate 1112 is provided with a light-transmitting hole 11122, the circuit board 121 is provided with an indicator light 1211, and the mounting groove 1113 is provided with a light guide member 125 which is aligned with the light-transmitting hole 11122 and the indicator light 1211.

[0102] The indicator light 1211 on the circuit board 121 is used to indicate the working state of the device, such as power on, data transmission, error alarm, etc. The parameters of the indicator light 1211, such as light color, brightness and flicker mode, can be customized according to actual needs. The light-transmitting hole 11122 formed in the inner partition plate 1112 allows light to pass through and is a key channel connecting the internal indicator light 1211 and the external observer. The light guide 125 in the mounting groove 1113 is responsible for guiding the light emitted by the indicator light 1211 on the circuit board 121 to the light-transmitting hole 11122 and then to the outside. The light guide 125 is usually made of materials with good light transmission, such as plastic, glass or special optical materials, to ensure effective light transmission. The design of the light guide 125 ensures that it can accurately align with the light-transmitting hole 11122 and the indicator light 1211, thereby minimizing light loss and improving light transmission efficiency.

[0103] Through the cooperation of the light-transmitting hole 11122, the light guide 125 and the indicator light 1211, the user can intuitively understand the working state of the device without opening the device shell or performing complex operations, which improves the ease of use and user experience of the device.

[0104] In an embodiment, in combination with Figure 4 and Figure 8 , the second electrode sheet 124 includes a contact sheet 1241 and a wire 1242. The contact sheet 1241 is fixed to one end of the insertion column 112 away from the main housing 111, and the wire 1242 has two ends connected to the contact sheet 1241 and the circuit board 121, respectively.

[0105] The contact sheet 1241 is arranged at one end of the insertion column 112, so that it can smoothly contact the positive contact terminal 312 or the negative contact terminal 313 in the power supply mounting cavity 3111. The end of the insertion column 112 away from the main housing 111 is the end inserted into the power supply mounting cavity 3111 during installation. The contact sheet 1241 arranged at this end can exactly contact the positive contact terminal 312 or the negative contact terminal 313 located at the bottom of the power supply mounting cavity 3111 after insertion. The two ends of the wire 1242 are connected to the contact sheet 1241 and the circuit board 121, respectively, so that the circuit board 121 can conduct current to the contact sheet 1241 through the wire 1242, and then to the controller 31. The second electrode sheet 124 of this structure can exactly match the setting form of the original positive contact terminal 312 or negative contact terminal 313 in the controller 31, realizing reliable contact and conduction function.

[0106] In an embodiment, in combination with Figure 8 , the insertion column 112 is centrally provided with a wiring channel 1122, and the wire 1242 is arranged in the wiring channel 1122.

[0107] The wiring channel 1122 provides a physical barrier for the wire 1242, which can prevent the wire 1242 from being damaged by external environmental interference. By fixing the wire 1242 in the wiring channel 1122, the stability of the wire 1242 during transmission of current or signal can be ensured.

[0108] Specifically, the plug-in column 112 is provided with an opening at one end away from the main housing 111, and the wiring channel 1122 is formed inward around the opening, and the channel wall of the wiring channel 1122 is spaced apart from the side wall of the plug-in column 112; the contact sheet 1241 is arranged on the end face of the plug-in column 112 away from the main housing 111 and contacts the positive contact terminal 312 or the negative contact terminal 313 in the controller 31; one end of the wire 1242 is connected to the contact sheet 1241 and passes through the wiring channel 1122, and the other end of the wire 1242 is connected to the circuit board 121. By arranging the contact sheet 1241 on the end face of the plug-in column 112 away from the main housing 111, the second electrode sheet can contact the positive contact terminal or the negative contact terminal in the power supply mounting cavity, wherein when the second electrode sheet is a positive electrode sheet, it can contact the positive contact terminal, and when the second electrode sheet is a negative electrode sheet, it can contact the negative contact terminal.

[0109] In an embodiment, referring to Figure 5 , the outer wall of the main housing 111 is provided with an outer threaded portion 1115, which is suitable for threaded connection with the controller 31.

[0110] Specifically, a threaded opening matching the outer threaded portion 1115 is arranged on the controller 31 corresponding to the position of the opening of the power supply mounting cavity 3111. During installation, the plug-in column 112 of the power supply adapter 1 is aligned with the power supply mounting cavity 3111 and inserted until the outer threaded portion 1115 of the main housing 111 contacts the threaded opening, and then the power supply adapter 1 is rotated to be screwed onto the controller 31.

[0111] The threaded connection can ensure a tight connection between the main housing 111 and the controller 31, preventing loosening or falling off due to vibration or external impact. Compared with welding or glue fixing, threaded connection is easier to disassemble and reinstall, which provides convenience for maintenance and repair. Due to the stability and firmness of threaded connection, the reliability of the entire system is improved.

[0112] In an embodiment, the root of the outer threaded portion 1115 is sleeved with a waterproof ring 113, which is suitable for sealed connection with the controller 31.

[0113] The waterproof ring 113 is sleeved on the root of the outer threaded part 1115, that is, the part where the outer thread meets the outer wall of the main housing 111. When the main housing 111 is threadedly connected with the controller 31, the waterproof ring 113 can be effectively compressed and fill any small gap between them. When the main housing 111 is tightly screwed with the controller 31, the waterproof ring 113 will be under pressure and deformed, thereby tightly adhering to the contact surface of the two connecting parts. This tight adhesion forms an effective sealing barrier that can prevent the infiltration of water and other liquids.

[0114] The design of the waterproof ring 113 significantly improves the waterproof performance of the connection, ensuring the stable operation of the device in humid or harsh environments.

[0115] In another aspect, a controller of an electric valve is provided, comprising:

[0116] The power adapter 1 described above is provided in the power installation cavity 3111 of the controller 31.

[0117] Based on the power adapter 1 of the present embodiment, the controller of the present embodiment can be directly connected with the mains or photovoltaic panels, realizing unlimited cycle operation, completely overcoming the problem of poor endurance and the problem of high human maintenance cost caused by the endurance problem.

[0118] In another aspect, with reference to Figures 10-14 The present embodiment also provides an electric valve device, comprising:

[0119] The electric valve 3 comprises a valve body 32 and a controller 31, the controller 31 is drivingly connected to the valve body 32, and the controller 31 is provided with a power installation cavity 3111.

[0120] The power adapter 1 described above, the plug-in column 112 of the power adapter 1 is plugged into the power installation cavity 3111.

[0121] Based on the power adapter 1 of the present embodiment, the electric valve device of the present embodiment can be directly connected with the mains or photovoltaic panels, realizing unlimited cycle operation, completely overcoming the problem of poor endurance and the problem of high human maintenance cost caused by the endurance problem.

[0122] With reference to 14, the valve body 32 comprises a valve shell 321 and a valve core 322 rotatably installed in the valve shell 321. The rotation of the valve core 322 can control the flow direction and flow speed of the fluid in the valve shell 321. The controller 31 comprises a controller shell 311, in which a control board, a motor and a speed reducer and other structures are installed. The control board is used to control the operation of the motor, and the motor is drivingly connected to the valve core 322 through the speed reducer to drive the valve core 322 to rotate according to the control instruction.

[0123] In one embodiment, a sensor is further included. The sensor is connected to a signal connector, and the signal connector is plug-connected to the connector 122 on the power adapter 1 .

[0124] Depending on the actual application requirements, the sensor can be, but is not limited to, a flow sensor, a pressure sensor, or an EC / PH sensor. Using the power adapter 1 to establish communication between the sensor and the controller 31 achieves an integrated design for power supply and data transmission. This not only reduces the complexity and space occupied by the device, but also simplifies the installation and connection process. Users only need to use a single power adapter 1 to meet both the power supply and sensor data transmission requirements of the electric valve 3.

[0125] Among them, EC (Electrical Conductivity Sensor) refers to electrical conductivity; PH (Potential of Hydrogen) refers to acidity and alkalinity. EC / PH sensor is a device specially used to measure liquid conductivity and acidity and alkalinity. In agricultural fertilization system, the EC value and pH value of fertilizer are crucial to crop growth. EC value reflects the concentration of soluble salts in fertilizer solution, while pH value indicates the acidity and alkalinity of the solution. By monitoring these parameters, the quality and applicability of fertilizer solution can be ensured. Therefore, the application of EC / PH sensor in fertilization system is crucial.

[0126] On the other hand, this embodiment further provides an irrigation and fertilization system, including the above-mentioned electric valve device.

[0127] Similarly, based on the electric valve device of this embodiment, the control of the irrigation and fertilization system of this embodiment has the advantages of long battery life and low manual maintenance cost.

[0128] In one embodiment, the fertigation system includes a liquid pipeline and an electric valve device provided on the liquid pipeline, the liquid pipeline is provided with a sensor for detecting the liquid, and the connector (122) includes a data connector, which is connected to the sensor to transmit the sensing data detected by the sensor to the circuit board.

[0129] The power adapter 1 is used to establish communication between the sensor and the controller 31, realizing the integrated design of power supply and data transmission. This not only reduces the complexity and space occupied by the equipment, but also simplifies the installation and connection process. The user only needs to use one power adapter 1 to simultaneously meet the power supply and sensor data transmission requirements of the electric valve 3.

[0130] In the scheme, the electric valve device of the irrigation and fertilization system can be arranged in the liquid pipeline for irrigation, and used for controlling irrigation alone; or arranged in the liquid pipeline for fertilization, and used for controlling fertilization alone; or arranged in the liquid pipeline for irrigation and fertilization, and used for controlling irrigation and fertilization.

[0131] In one embodiment, the electric valve device can be arranged in the liquid pipeline for irrigation and fertilization. When the valve core of the electric valve device rotates to the first position, the liquid pipeline can be used for irrigation, so that irrigation control is realized through the electric valve device. When the valve core of the electric valve device rotates to the second position, the electric valve device can be communicated with the liquid pipeline for fertilization, so that fertilization control is realized.

[0132] Specifically, referring to Figure 15 , the liquid pipeline of the embodiment comprises a main water inlet pipeline 51, a main water outlet pipeline 52, and a multi-way connector 53. The irrigation and fertilization system further comprises a fertilizer storage container 4. The valve housing 321 of the electric valve device comprises a water inlet 3211, a first water outlet 3212, and two second water outlets 3213. The main water inlet pipeline 51 is connected with the water inlet 3211 of the electric valve device. The multi-way connector 53 is connected with the first water outlet 3212 of the electric valve device. The main water outlet pipeline 52 is connected with the multi-way connector 53. The fertilizer storage container 4 comprises a water inlet connector and a water outlet connector. The water inlet connector is communicated with the second water outlet 3213 of the electric valve device through a water inlet pipeline 41. The water outlet connector is communicated with the multi-way connector 53 through a liquid outlet pipeline 42.

[0133] Referring to Figure 16, the direction of water flow in the valve housing 321 can be controlled by the electric valve device, thereby achieving the purpose of controlling fertilization and irrigation. Specifically, when the irrigation function is turned on, the second water outlet 3213 of the electric valve device is closed, and all the water in the valve housing 321 flows out to the first water outlet 3212; when the fertilization function is turned on, one of the second water outlets 3213 of the electric valve device is opened, and a part of the water in the valve housing 321 flows to the multi-way connector 53 through the first water outlet 3212, and the other part of the water flows to the water inlet pipe 41 through the second water outlet 3213, and then flows to the multi-way connector 53 through the fertilizer storage container 4 and the liquid outlet pipe 42, and then flows to the fertilization destination in one go; and The water outflow ratio of the first water outlet 3212 and the second water outlet 3213 can be controlled by the rotation angle of the valve core 322, thereby controlling the concentration of the fertilizer solution during fertilization. When the valve core of the electric valve device is rotated to the first position, water flows from the water inlet of the electric valve device to the first water outlet, achieving irrigation. When the valve core of the electric valve device is rotated to the second position, the second water outlet 3212 of the electric valve device is opened, and a portion of the water can be transferred to the fertilizer storage container 4, thereby causing the fertilizer storage container 4 to output the fertilizer solution through the liquid outlet pipe 42. Therefore, this embodiment can achieve the functions of controlling the fertilization rate and switching between fertilization and irrigation through a single electric valve device, and has the advantages of simple structure and rich functions.

[0134] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other positions or relationships are used solely for ease of description and simplified operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0135] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0136] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0137] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without any creative effort, and these embodiments will all fall within the protection scope of the present application.

Claims

1. A power adapter, characterized by, A controller (31) for being mounted on an electric valve (3), the controller (31) has a power supply mounting cavity (3111); comprising: An adapter housing (11) adapted to be mounted in the power supply mounting cavity (3111); An adapter unit (12) comprising a circuit board (121), a connector (122), a first electrode sheet (123) and a second electrode sheet (124), the circuit board (121) is mounted in the adapter housing (11), the connector (122), the first electrode sheet (123) and the second electrode sheet (124) are electrically connected with the circuit board (121) respectively; one of the first electrode sheet (123) and the second electrode sheet (124) is adapted to contact with a positive contact terminal (312) in the controller (31), and the other is adapted to contact with a negative contact terminal (313) in the controller (31); the connector (122) is adapted to be connected with an external power supply.

2. The power adapter of claim 1, wherein, The circuit board (121) is provided with a power supply adaptation module and a data transmission module, the connector (122) comprises a power connector and a data connector, the power connector is connected with the power supply adaptation module, and the power connector is adapted to be connected with an external power supply; the data connector is connected with the data transmission module, and the data transmission module is adapted to establish a data connection with the controller (31).

3. The power adapter of claim 2, wherein, The data transmission module comprises a wireless communication device, which is adapted to wirelessly communicate with the controller (31) to realize data transmission to the controller (31).

4. The power adapter of any one of claims 1-3, wherein, The adapter housing (11) comprises a main housing (111) and a plug-in column (112), the plug-in column (112) is adapted to be plugged into the power supply mounting cavity (3111), and the circuit board (121) is mounted in the main housing (111).

5. The power adapter of claim 4, wherein, One side of the main housing (111) connected with the plug-in column (112) is provided with a mounting groove (1113), one end of the plug-in column (112) is provided with a fixing portion (1121), and the fixing portion (1121) is plugged into the mounting groove (1113) to fix the circuit board (121) in the mounting groove (1113).

6. The power adapter of claim 5, wherein, The first electrode sheet (123) comprises a contact ring (1231) and a connecting arm (1232) connected with each other, the contact ring (1231) is located outside the main housing (111), and the connecting arm (1232) extends inward along the inner wall of the mounting groove (1113) and connects the circuit board (121).

7. The power adapter of claim 6, wherein, The contact ring (1231) abuts against the end face of the main housing (111) close to the plug-in column (112), or abuts against the end face of the fixing portion (1121) away from the main housing (111).

8. The power adapter of claim 6, wherein, The inner wall of the mounting groove (1113) and / or the outer wall of the fixing portion (1121) is provided with a avoiding groove, and the connecting arm (1232) is placed in the avoiding groove.

9. The power adapter of claim 5, wherein, The fixing portion (1121) is locked to the main housing (111) by a connecting bolt (114).

10. The power adapter of claim 5, wherein, The main shell (111) comprises an annular wall plate (1111) and an inner partition plate (1112) fixed to the inner side of the annular wall plate (1111), and the inner partition plate (1112) and the annular wall plate (1111) form the mounting groove (1113) on the side close to the plug-in column (112).

11. The power adapter of claim 10, wherein, The inner partition plate (1112) and the annular wall plate (1111) form a connecting groove (1114) on the side away from the plug-in column (112).

12. The power adapter of claim 11, wherein, The connecting groove (1114) is provided with a detachable sealing plug (115) capable of sealing the connecting hole (11121).

13. The power adapter of claim 10, wherein, The inner partition plate (1112) is provided with a locking threaded hole on the side away from the plug-in column (112).

14. The power adapter of claim 10, wherein, The inner partition plate (1112) is provided with a light transmission hole (11122), the circuit board (121) is provided with an indicator light (1211), and the mounting groove (1113) is provided with a light guide member (125) aligned with the light transmission hole (11122) and the indicator light (1211).

15. The power adapter of claim 4, wherein, The second electrode sheet (124) comprises a contact sheet (1241) and a lead wire (1242), the contact sheet (1241) is fixed to the end of the plug-in column (112) away from the main shell (111), and the two ends of the lead wire (1242) are connected to the contact sheet (1241) and the circuit board (121) respectively.

16. The power adapter of claim 15, wherein, The plug-in column (112) is provided with a wiring channel (1122), and the lead wire (1242) is arranged in the wiring channel (1122).

17. The power adapter of claim 4, wherein, The outer wall of the main shell (111) is provided with an external threaded portion (1115) suitable for threaded connection with the controller (31).

18. The power adapter of claim 17, wherein, The root of the external threaded portion (1115) is provided with a waterproof ring (113) suitable for sealed connection with the controller (31).

19. A controller for an electrically powered valve, characterised in that The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31).

20. An electrically powered valve apparatus, characterized by The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31).

21. The electrically powered valve apparatus of claim 20, wherein, The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31).

22. An irrigation and fertilization system characterized in that, The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of the controller (31). The power adapter (1) according to any one of claims 1-18 is arranged in the power supply mounting cavity (3111) of 23. The irrigation fertilization system of claim 22, wherein, The connector (122) includes a data connector that is connected to the sensor to transmit sensed data detected by the sensor to the circuit board.

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