Power adapter, controller, motorized valve device, and irrigation fertigation system

Abstract

This invention discloses a power adapter, controller, electric valve device, and irrigation and fertilization system. The adapter housing is suitable for installation in the power supply mounting cavity. The power adapter includes an adapter unit comprising a circuit board, a connector, a first electrode plate, and a second electrode plate. The circuit board is installed inside the adapter housing. The connector, the first electrode plate, and the second electrode plate are electrically connected to the circuit board. Of the first and second electrode plates, one is adapted to contact the positive terminal of the controller, and the other is adapted to contact the negative terminal of the controller. The connector is adapted to interface with an external power source. Based on this solution, the power adapter can directly utilize mains power or photovoltaic panel power, enabling unlimited cycle operation and completely overcoming the problems of poor battery life and high maintenance costs.

Description

Technical Field

[0001] This application relates to the technical field of electric valves, and more particularly to a power adapter, controller, electric valve device, and irrigation and fertilization system. Background Technology

[0002] Electric control valves typically consist of a valve body and a controller. The motor in the controller is connected to the valve core in the valve body via a transmission component (reducer). By driving the valve core to rotate, the valve opening is automatically controlled. Currently, most electric control valve controllers on the market use lithium batteries as their power source. However, this power supply mode suffers from a surge in energy consumption during high-frequency operation, resulting in limited battery life. Batteries often need to be replaced within a few weeks to a month, undoubtedly adding inconvenience to users' daily management and maintenance. Even more problematic is that existing controller battery compartment designs only support the installation of a single lithium battery, significantly limiting battery life. Extending the battery life by simply increasing the number of batteries would require enlarging the battery compartment, necessitating corresponding adjustments to the overall layout and structure of the controller. This not only significantly increases the design complexity and manufacturing cost of the product but may also bring additional challenges and risks in warehousing, transportation, and subsequent management. Summary of the Invention

[0003] The purpose of this invention is to provide a power adapter, controller, electric valve device, and irrigation and fertilization system that can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On one hand, a power adapter is provided for mounting on a controller of an electric valve, the controller having a power mounting cavity; comprising:

[0006] The adapter housing is adapted for installation in the power supply mounting cavity;

[0007] The adapter unit includes a circuit board, a connector, a first electrode plate, and a second electrode plate. The circuit board is installed inside the adapter housing. The connector, the first electrode plate, and the second electrode plate are electrically connected to the circuit board. Of the first electrode plate and the second electrode plate, one is adapted to contact the positive terminal of the controller, and the other is adapted to contact the negative terminal of the controller. The connector is adapted to connect to an external power source.

[0008] Optionally, the circuit board is provided with a power adapter module and a data transmission module. The connector includes a power connector and a data connector. The power connector is connected to the power adapter module and is adapted to interface with an external power source. The data connector is connected to the data transmission module and is adapted to establish a data connection with the controller.

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

[0010] Optionally, the adapter housing includes a main housing and insertion posts, the insertion posts being adapted to be inserted into the power mounting cavity, and the circuit board being mounted within the main housing.

[0011] Optionally, the main housing has a mounting groove on one side connected to the insertion post, and a fixing part is provided at one end of the insertion post. The fixing part is inserted into the mounting groove to fix the circuit board in the mounting groove.

[0012] Optionally, the first electrode sheet includes a connected contact ring and a connecting arm, the contact ring being located outside the main housing, and the connecting arm extending inward along the inner wall of the mounting groove and connecting to the circuit board.

[0013] Optionally, the contact ring abuts against the end face of the main housing near the insertion post, or against the end face of the fixing part opposite to the main housing.

[0014] Optionally, the inner wall of the mounting groove and / or the outer wall of the fixing part are provided with a clearance groove, and the connecting arm is placed in the clearance groove.

[0015] Optionally, the fixing part is locked to the main housing by connecting bolts.

[0016] Optionally, the main housing includes an annular wall panel and an inner partition plate fixed to the inner side of the annular wall panel. The side of the inner partition plate near the insertion post is surrounded by the annular wall panel to form the mounting groove. The inner partition plate is provided with a connection hole corresponding to the connector, and the connector is aligned with the connection hole.

[0017] Optionally, the side of the inner partition away from the insert post is joined with the annular wall panel to form a connecting groove.

[0018] Optionally, the connecting groove is equipped with a removable sealing plug, which can seal the connecting hole.

[0019] Optionally, the inner partition plate has a locking threaded hole on the side away from the insert post.

[0020] Optionally, the inner partition is provided with a light-transmitting hole, the circuit board is provided with an indicator light, and the mounting groove is provided with a light guide that aligns with the light-transmitting hole and the indicator light.

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

[0022] Optionally, the insertion post has a wiring channel at its center, and the wire is disposed in the wiring channel.

[0023] Optionally, the outer wall of the main housing is provided with an external thread, which is adapted to be threadedly connected to the controller.

[0024] Optionally, a waterproof ring is fitted at the root of the external thread, and the waterproof ring is adapted to be sealed to the controller.

[0025] On the other hand, a controller for an electric valve is provided, including the power adapter described above, wherein the power adapter is disposed in the power mounting cavity of the controller.

[0026] On the other hand, an electric valve device is provided, comprising:

[0027] An electric valve includes a valve body and a controller, wherein the controller is connected to the valve body for driving, and the controller is provided with a power supply mounting cavity;

[0028] The power adapter described above is disposed in the power mounting cavity.

[0029] Optionally, it may also include a sensor connected to a signal connector that is plugged into a connector on the power adapter.

[0030] On the other hand, an irrigation and fertilization system is provided, including the aforementioned electric valve device.

[0031] Optionally, the device includes a liquid pipeline and an electric valve device disposed on the liquid pipeline. The liquid pipeline is equipped with a sensor for detecting the liquid. The connector includes a data connector, which is connected to the sensor to transmit the sensed data detected by the sensor to the circuit board.

[0032] The beneficial effects of this application are as follows: This invention provides a power adapter that can directly replace the battery in the existing electric valve controller. It is directly installed in the power mounting cavity of the controller and includes an adapter unit with a connector. During on-site installation, the power supply connector of the mains power or photovoltaic panel can be directly plugged into the connector. Utilizing the voltage regulation and rectification function of the adapter unit, the mains power or photovoltaic panel power supply is adjusted to conditions suitable for the controller's use before being supplied to the controller, thus realizing the function of powering the controller. Clearly, compared to the traditional method of using a single battery for power supply, the power adapter based on this solution can directly utilize mains power or photovoltaic panel power, enabling unlimited cycle operation and completely overcoming the problems of poor battery life and high manual maintenance costs.

[0033] Furthermore, the high compatibility of this power adapter is another major advantage. It can be directly installed into existing electric valve controllers without requiring large-scale modifications to the electric valve itself or adjustments to the production line, effectively reducing upgrade costs during the production phase. For users, simply replacing the existing battery allows them to enjoy the convenience and efficiency of the power adapter, significantly lowering the barrier and cost of equipment upgrades. Attached Figure Description

[0034] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is one of the structural schematic diagrams of the power adapter described in the embodiments of this application;

[0036] Figure 2 This is a second schematic diagram of the power adapter described in the embodiments of this application;

[0037] Figure 3 This is an exploded view of the power adapter described in an embodiment of this application;

[0038] Figure 4 This is a cross-sectional view of the power adapter described in an embodiment of this application;

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

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

[0041] Figure 7 This is a schematic diagram of the connection between the adapter unit and the insertion post according to an embodiment of this application;

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

[0043] Figure 9 This is a diagram showing the power adapter described in the embodiments of this application with a sealing plug installed.

[0044] Figure 10 This is a schematic diagram of the structure of the external connector described in an embodiment of this application;

[0045] Figure 11 This is a schematic diagram of the structure of the electric valve device described in the embodiments of this application;

[0046] Figure 12 This is a schematic diagram of the controller described in an embodiment of this application;

[0047] Figure 13 This is a schematic diagram of the controller housing described in an embodiment of this application;

[0048] Figure 14 This is an exploded view of the valve body described in an embodiment of this application;

[0049] Figure 15 This is a schematic diagram of the irrigation and fertilization system described in the embodiments of this application;

[0050] Figure 16 This is a cross-sectional view of the valve body described in an embodiment of this application.

[0051] In the picture:

[0052] 1. Power adapter; 11. Adapter housing; 111. Main housing; 1111. Annular enclosure panel; 1112. Inner partition; 11121. Connection hole; 11122. Light transmission hole; 1113. Mounting slot; 1114. Connection slot; 1115. External thread part; 112. Insert post; 1121. Fixing 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 plate; 1231. Contact ring; 1232. Connecting arm; 124. 1. Second electrode plate; 1241. Contact plate; 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 shell; 3211. Water inlet; 3212. First water outlet; 3213. Second water outlet; 322. Valve core; 4. Fertilizer storage container; 41. Water inlet pipe; 42. Liquid outlet pipe; 51. Main water inlet pipe; 52. Main water outlet pipe; 53. Multi-port connector. Detailed Implementation

[0053] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] Electric control valves typically consist of a valve body and a controller. The motor in the controller is connected to the valve core in the valve body via a transmission component (reducer). By driving the valve core to rotate, the valve opening is automatically controlled. Currently, most electric control valve controllers on the market use lithium batteries as their power source. However, this power supply mode suffers from a surge in energy consumption during high-frequency operation, resulting in limited battery life. Batteries often need to be replaced within a few weeks to a month, undoubtedly adding inconvenience to users' daily management and maintenance. Even more problematic is that existing controller battery compartment designs only support the installation of a single lithium battery, significantly limiting battery life. Extending the battery life by simply increasing the number of batteries would require enlarging the battery compartment, necessitating corresponding adjustments to the overall layout and structure of the controller. This not only significantly increases the design complexity and manufacturing cost of the product but may also bring additional challenges and risks in warehousing, transportation, and subsequent management.

[0057] To overcome the above technical problems, a power adapter 1 is provided for installation on the controller 31 of the electric valve 3. The power adapter 1 based on this embodiment can use mains power or photovoltaic panels and other power sources with unlimited power supply to power the controller 31, solving the problems of poor battery life and high manual maintenance costs of traditional electric valves 3.

[0058] Reference Figures 1-14 The power adapter 1 provided in this embodiment includes an adapter housing 11 and an adapter unit 12. The adapter housing 11 is adapted to be installed in the power mounting cavity 3111. The adapter unit 12 includes a circuit board 121, a connector 122, a first electrode plate 123, and a second electrode plate 124. The circuit board 121 is installed inside the adapter housing 11. The connector 122, the first electrode plate 123, and the second electrode plate 124 are electrically connected to the circuit board 121. Of the first electrode plate 123 and the second electrode plate 124, one is adapted to contact the positive contact terminal 312 in the controller 31, and the other is adapted to contact the negative contact terminal 313 in the controller 31. The connector 122 is adapted to connect to an external power source.

[0059] The adapter housing 11 needs to be able to be installed into the power mounting cavity 3111 of the controller. Therefore, its specific shape needs to be reasonably set in combination with the shape of the power mounting cavity 3111 so that the power adapter 1 can be reliably installed on the controller 31 during application. At the same time, after installation, the first electrode plate 123 and the second electrode plate 124 in the power adapter 1 can accurately contact the original positive contact terminal 312 and negative contact terminal 313 in the controller 31.

[0060] One of the first electrode plate 123 and the second electrode plate 124 serves as the positive electrode plate, and the other as the negative electrode plate. In some embodiments, the configuration can be directly based on the existing structure and position of the 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 configuration of the first electrode plate 123 and the second electrode plate 124 in the power adapter 1, while ensuring the reliability of the contact between the electrode plate and the contact terminal after installation. In other words, in specific implementation, the existing controller 31 can be simply designed to optimize the installation structure of the power adapter 1, or the existing design of the controller 31 can be directly configured to meet the installation requirements of the power adapter 1 without adjusting it.

[0061] The circuit board 121 in the adapter unit 12 serves as a core component. Its specific configuration can be tailored to the functional requirements of the application, allowing for the implementation of one or more functions such as voltage conversion, current regulation, power protection, power isolation, and power management. Specifically, voltage conversion means the adapter unit 12 can convert AC power of different voltage standards into DC power required by the device, ensuring normal operation under a specific voltage. Current regulation means the adapter unit 12 can adjust the output current according to the needs of the electronic equipment to meet the power requirements of different devices. Power protection means the adapter unit 12 has overload protection, short-circuit protection, and overheat protection functions; it can automatically cut off the power supply when the device malfunctions or experiences a short circuit, preventing equipment damage or fires. Power isolation means the adapter unit 12 uses components such as transformers to isolate the input and output power supplies, preventing current leakage or electromagnetic interference and improving the safety and stability of the electronic equipment. Power management means the adapter unit 12 can monitor power usage, achieving energy savings and extending the equipment's lifespan.

[0062] The adapter unit 12 of this solution is equipped with a connector 122, which is specifically used to connect with an external connector 2 to achieve the purpose of current or signal transmission. For example, one end of the cable connecting the photovoltaic panel or the mains power is connected to the external connector 2, which is compatible with the connector 122 in the adapter unit 12. In field applications, the user can directly plug the external connector 2 into the connector 122 of the adapter unit 12 to enable the photovoltaic panel or mains power to supply power to the power adapter 1. In specific implementations, the connector 122 can be any existing protocol interface, such as a Type-C interface, a USB interface, etc.

[0063] In summary, the power adapter 1 based on this embodiment can directly replace the battery in the controller 31 of the existing electric valve 3. It is directly installed in the power mounting cavity 3111 of the controller 31. It includes an adapter unit 12 with a connector 122. During on-site installation, the mains power or photovoltaic panel power supply connector can be directly plugged into the connector 122. Utilizing the voltage regulation and rectification function of the adapter unit 12, the mains power or photovoltaic panel power supply is adjusted to conditions suitable for the controller 31 before being supplied to the controller 31, thus enabling power supply to the controller 31. Clearly, compared to the traditional method of using a single battery for power supply, the power adapter 1 based on this solution can directly utilize mains power or photovoltaic panel power, achieving infinite cycle operation and completely overcoming the problems of poor battery life and high maintenance costs.

[0064] Furthermore, the high compatibility of this power adapter 1 is another major advantage. It can be directly installed into the controller 31 of the existing electric valve 3 without requiring large-scale modifications to the electric valve 3 itself or adjustments to the production line, effectively reducing the update costs during the production stage. For users, simply replacing the existing battery allows them to enjoy the convenience and efficiency brought by the power adapter 1, greatly lowering the threshold and cost of equipment upgrades.

[0065] In one embodiment, the circuit board 121 is provided with a power adapter module and a data transmission module, and the connector 122 includes a power connector and a data connector. The power connector is connected to the power adapter module and is adapted to interface with an external power source. The data connector is connected to the data transmission module and is adapted to establish a data connection with the controller 31.

[0066] The power adapter module is used to implement power transmission control and adjustment functions, such as voltage conversion, current regulation, power protection, power isolation, and power management. In use, the external connector 2, which is connected to a power source such as AC mains or a photovoltaic panel, can be plugged into the power connector to provide power. The data transmission module receives external data and transmits it to the controller 31, enabling communication between the controller 31 and external devices. The signal transmission between the data transmission module and the controller 31 can be wireless or wired communication. In use, the external connector 2, which is connected to the sensor, can be plugged into the data connector to achieve communication.

[0067] In applications of electric valve 3, flow sensors, pressure sensors, conductivity sensors, and temperature sensors are typically installed. Flow sensors detect the flow rate of the liquid, pressure sensors detect the pressure, and conductivity sensors detect the conductivity of the liquid. In some special applications, such as irrigation and fertilization, EC / pH sensors are also used to detect the EC and pH values ​​of the fertilizer solution. These sensors usually need to communicate with controller 31 to upload the detection data to controller 31 in real time, enabling controller 31 to automatically adjust based on operating conditions. Therefore, this solution also includes a data transmission module on the circuit board 121 of power adapter 1. This data transmission module can establish a data connection with controller 31. In application, the external connector 2 connected to the sensor's signal line can be directly plugged into the data connector of power adapter 1, allowing data to be uploaded to controller 31 via power adapter 1, thus enabling controller 31 to establish communication and data transmission with the sensors.

[0068] Based on the above embodiments, by integrating a power adapter module and a data transmission module, along with corresponding power connectors and data connectors, onto the circuit board 121 of the power adapter 1, an integrated design for power supply and data transmission is achieved. This not only reduces the complexity and space required for the device but also simplifies the installation and connection process. Users only need one power adapter 1 to simultaneously meet the power supply and sensor data transmission needs of the electric valve 3. The integrated design makes system maintenance and upgrades simpler. For example, if a sensor needs to be replaced or upgraded, only the connection between the sensor and the power adapter 1 needs to be addressed, without requiring large-scale modifications to the entire system. Furthermore, this design facilitates future functional expansion, such as adding more types of sensors or increasing the data transmission rate.

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

[0070] The data transmission module communicates wirelessly with the controller 31. Compared to wired communication, wireless communication eliminates the need for data transmission lines. This means that complex wiring is not required during installation, nor is it necessary to add additional data transmission lines to the power supply mounting cavity 3111 of the controller 31. This not only simplifies the installation process and reduces installation costs, but also reduces potential failure points caused by aging, damaged, or improperly maintained wiring. Furthermore, wireless communication facilitates later maintenance and troubleshooting, as it eliminates the need to inspect complex wiring connections. Moreover, existing controllers 31 generally integrate wireless communication functionality, allowing direct communication with the data transmission module.

[0071] Optionally, the wireless communication device establishes communication with the controller 31 via Bluetooth technology. This has the advantage of low cost and is suitable for short-range transmission requirements between the power adapter 1 and the controller 31.

[0072] In one embodiment, the adapter housing 11 includes a main housing 111 and a insertion post 112, the insertion post 112 being adapted to be inserted into the power mounting cavity 3111, and the circuit board 121 being mounted inside the main housing 111.

[0073] The adapter housing 11 includes a main housing 111 and insertion posts 112. The insertion posts 112 are specifically adapted to be inserted into the power mounting cavity 3111 of the existing controller 31, ensuring that the first electrode plate 123 and the second electrode plate 124 in the power adapter 1 can accurately contact the original positive contact terminal 312 and negative contact terminal 313 in the controller 31 after installation. The adapter housing 11 with insertion posts 112 better adapts to the structure of the power mounting cavity 3111, achieving reliable electrical contact. The main housing 111, after installation, is located outside the power mounting cavity 3111, providing sufficient mounting space for the circuit board 121.

[0074] In one embodiment, combined with Figure 3 and Figure 4 The main housing 111 has a mounting groove 1113 on one side connected to the insertion post 112. One end of the insertion post 112 is provided with a fixing part 1121. The fixing part 1121 is inserted into the mounting groove 1113 to fix the circuit board 121 in the mounting groove 1113.

[0075] The mounting groove 1113 on the main housing 111 provides mounting space for the circuit board 121 and provides stable protection for the circuit board 121, ensuring its reliable operation. Meanwhile, a fixing part 1121 that mates with the mounting groove 1113 is provided at one end of the insertion post 112. The fixing part 1121 is inserted into the mounting groove 1113 to achieve a reliable connection between the insertion post 112 and the main housing 111. Furthermore, the mounting of the insertion post 112 supports and fixes the circuit board 121, enhancing the reliability of the circuit board 121 installation. Installing the circuit board 121 requires no complex operations or adjustments; simply align the fixing part 1121 with the mounting groove 1113 and gently insert it, offering the advantage of a simple installation process.

[0076] In a specific implementation, optionally, the circuit board 121 and the fixing part 1121 are installed in the mounting groove 1113 respectively. At this time, there is no hard connection between the circuit board 121 and the fixing part 1121. During assembly, the circuit board 121 is first installed into the mounting groove 1113, and then the fixing part 1121 of the insertion post 112 is aligned with the mounting groove 1113 and inserted for installation. As the installation of the insertion post 112 is completed, the circuit board 121 is also pressed and fixed in the mounting groove 1113.

[0077] Alternatively, the circuit board 121 is fixed to the fixing part 1121. In this case, the circuit board 121 and the fixing part 1121 are rigidly connected. During assembly, the circuit board 121 is first connected and fixed to the fixing part 1121. Then, the end of the insertion post 112 with the circuit board 121 is aligned with the mounting groove 1113 and inserted for installation. As the insertion post 112 is installed, it is fixed in the mounting groove 1113. Further optional, refer to... Figure 7 The fixing part 1121 is provided with a plurality of hooks 11211 arranged around the mounting position of the circuit board 121. The circuit board 121 is on the fixing part 1121 and is locked by the plurality of hooks 11211 around the periphery of the circuit board 121.

[0078] In one embodiment, combined with Figures 5-8 The first electrode plate 123 includes a contact ring 1231 and a connecting arm 1232 connected together. 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 to the circuit board 121.

[0079] The contact ring 1231 is located outside the main housing 111, allowing it to smoothly contact the positive contact terminal 312 or the negative contact terminal 313 in the power mounting cavity 3111. The connecting arm 1232 extends inward along the inner wall of the mounting groove 1113, eventually connecting to the circuit board 121. The contact ring 1231 is designed to be outside the main housing 111, enabling direct electrical connection to the positive contact terminal 312 or the negative contact terminal 313. The connecting arm 1232 extends cleverly along the inner wall of the mounting groove 1113, ensuring continuity of electrical connection while avoiding interference with other components inside the main housing 111. The connecting arm 1232 eventually connects to the circuit board 121, ensuring electrical connection between the first electrode plate 123 and the circuit board 121. This connection may be achieved through welding, crimping, or other reliable electrical connection methods.

[0080] The first electrode 123 of this structure can both connect to the circuit board 121 inside the mounting slot 1113 and extend outside the main housing 111 for contact connection with the controller 31, offering advantages such as simple installation and high reliability. In specific applications, if the first electrode 123 is set as a positive electrode, a positive contact terminal 312 that can directly contact the first electrode 123 should be provided at the opening end of the power mounting cavity 3111 of the controller 31, so that the first electrode 123 can stably contact the positive contact terminal 312 after the power adapter 1 is installed.

[0081] In one embodiment, combined with Figure 5The contact ring 1231 abuts against the end face of the main housing 111 near the insertion post 112, or abuts against the end face of the fixing part 1121 opposite to the main housing 111.

[0082] Specifically, the end face of the main housing 111 near the insertion post 112, or the end face of the fixing part 1121 facing away from the main housing 111, are both end faces perpendicular to the insertion direction of the insertion post 112. The contact ring 1231 that contacts these two end faces can be reliably supported, so that after installation, the contact ring 1231 can be pressed in the positive direction to contact the positive contact terminal 312 or the negative contact terminal 313 on the controller 31. This method can provide good electrical contact and a stable fixing method, which helps to improve the reliability of electrical connection and reduce equipment failures caused by poor contact or loosening.

[0083] In one embodiment, the inner wall of the mounting groove 1113 and / or the outer wall of the fixing part 1121 are provided with a clearance groove, and the connecting arm 1232 is placed in the clearance groove.

[0084] By designing a clearance groove to accommodate the connecting arm 1232, interference between the connecting arm 1232 and the inner wall of the mounting groove 1113 or the outer wall of the fixing part 1121 is effectively avoided, thus ensuring a smooth installation process. At the same time, the stability of the connecting arm 1232 is significantly enhanced after it is embedded in the clearance groove, which helps to reduce the risk of loosening or damage to the connecting arm 1232 due to vibration or impact.

[0085] In one embodiment, the fixing part 1121 is locked to the main housing 111 by connecting bolts 114.

[0086] The use of connecting bolts 114 ensures a reliable connection between the fixing part 1121 and the main housing 111. Bolted connections have high strength and stability, maintaining a tight connection for a long time and reducing equipment failures caused by loose connections. Bolted connections are easy to install and maintain; installers can easily tighten and loosen bolts using standard tools, facilitating equipment assembly, commissioning, and maintenance.

[0087] In a specific implementation, optionally, a threaded hole is provided in the main housing 111 within the mounting groove 1113, and corresponding holes are provided on the circuit board 121 and the fixing part 1121 respectively. During installation, the connecting bolt 114 passes through the fixing part 1121 and the circuit board 121 and is threadedly locked in the threaded hole in the main housing 111.

[0088] Optionally, a protruding buckle is provided on the outer wall of the fixing part 1121, and a buckle hole is provided on the inner wall of the mounting groove 1113 of the main housing 111. During installation, the protruding buckle of the fixing part 1121 engages with the buckle hole to achieve pre-fixation of the connection between the fixing part 1121 and the main housing 111.

[0089] In one embodiment, reference is made to Figures 5-6 The main housing 111 includes an annular wall panel 1111 and an inner partition 1112 fixed to the inner side of the annular wall panel 1111. The side of the inner partition 1112 near the insertion post 112 surrounds the annular wall panel 1111 to form the mounting groove 1113. The inner partition 1112 is provided with a connection hole 11121 corresponding to the connector 122, and the connector 122 is aligned with the connection hole 11121.

[0090] By tightly combining the annular enclosure panel 1111 and the inner partition 1112, a compact and robust main shell structure 111 is formed. This design not only saves space but also improves the overall strength and stability of the equipment. Optionally, the annular enclosure panel 1111 and the inner partition 1112 are integrally formed, such as by injection molding or machining.

[0091] The inner partition 1112 is provided with connection holes 11121 corresponding to the connector 122. These connection holes 11121 provide the necessary space for the mating between the external connector 2 and the connector 122 on the circuit board 121.

[0092] In one embodiment, reference is made to Figure 6 The inner partition 1112, on the side away from the insert post 112, forms a connecting groove 1114 with the annular wall panel 1111.

[0093] The connecting groove 1114 is formed by the inner partition 1112 on the side away from the insertion post 112 and the annular wall plate 1111. This design cleverly utilizes the space inside the main housing 111 to provide a dedicated area for the insertion of the external connector 2. This area can accommodate the external connector 2 inserted during application and can provide a certain physical protection for the external connector 2, ensuring a stable and reliable connection between the external connector 2 and the connector 122 on the circuit board 121.

[0094] In one embodiment, the connecting groove 1114 is fitted with a removable sealing plug 115, which can seal the connecting hole 11121.

[0095] Specifically, the sealing plug 115 can be tightly sealed to the connecting groove 1114 to achieve a protective seal on the connecting hole 11121 and the connector 122 inside, thus preventing water from entering the connector 122 when the external connector 2 is not connected.

[0096] When in use, if it is necessary to insert the external connector 2, the corresponding sealing plug 115 is removed, which exposes the connector 122, allowing the external connector 2 to be inserted smoothly. When the external connector 2 is not inserted, the sealing plug 115 is simply inserted to seal.

[0097] In one embodiment, the inner partition 1112 has a locking threaded hole on the side away from the insert post 112.

[0098] A locking threaded hole is provided on the inner partition 1112, allowing the external connector 2 to be inserted and then secured to the main housing 111 with a fastening screw 22 to ensure a long-term stable connection.

[0099] Optional, refer to Figure 10 The external connector 2 includes a connecting flange 21 and a fastening screw 22. The connecting flange 21 has a through hole, and the inner partition 1112 of the main housing 111 has a corresponding locking thread hole. The fastening screw 22 passes through the connecting flange 21 and is threaded and locked to the inner partition 1112 to reliably lock the mating external connector 2 onto the main housing 111. This can ensure a long-term reliable connection between the external connector 2 and the power adapter 1.

[0100] Furthermore, a sealing ring 23 is fitted around the outer connector 2. When mating, the sealing ring 23 is in close contact with the periphery of the connection hole 11121 on the inner partition 1112, thus obtaining reliable waterproof performance.

[0101] In one embodiment, reference is made to Figure 6 The inner partition 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 125 that aligns 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 status of the device, such as power on, data transmission, and error alarm. The light color, brightness, and flashing mode of the indicator light 1211 can be customized according to actual needs. The light-transmitting hole 11122 on the inner partition 1112 allows light to pass through and is the key channel connecting the internal indicator light 1211 to an external observer. The light guide 125 in the mounting slot 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 a material with good light transmittance, such as plastic, glass, or special optical materials, to ensure effective light transmission. The design of the light guide 125 ensures that it can be precisely aligned with the light-transmitting hole 11122 and the indicator light 1211, thereby minimizing light loss and improving light transmission efficiency.

[0103] With the cooperation of the light-transmitting hole 11122, the light guide 125 and the indicator light 1211, users can intuitively understand the working status of the device without opening the device casing or performing complicated operations, which improves the ease of use of the device and the user experience.

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

[0105] Contact piece 1241 is disposed at one end of insertion post 112, enabling it to smoothly contact the positive contact terminal 312 or negative contact terminal 313 in power mounting cavity 3111. The end of insertion post 112 furthest from the main housing 111 is the end into power mounting cavity 3111 during installation. Contact piece 1241 disposed at this end, after insertion, can precisely contact the positive contact terminal 312 or negative contact terminal 313 located at the bottom of power mounting cavity 3111. The two ends of wire 1242 are respectively connected to contact piece 1241 and circuit board 121, enabling circuit board 121 to conduct current through wire 1242 to contact piece 1241, and then to controller 31. This structure of the second electrode piece 124 precisely matches the existing positive contact terminal 312 or negative contact terminal 313 arrangement in controller 31, achieving reliable contact and conduction.

[0106] In one embodiment, reference is made to Figure 8 The insertion post 112 has a wiring channel 1122 at its center, and the wire 1242 is disposed in the wiring channel 1122.

[0107] The wiring channel 1122 provides a physical barrier for the conductor 1242, preventing it from being damaged by external environmental interference. By securing the conductor 1242 within the wiring channel 1122, stable performance of the conductor 1242 can be ensured when transmitting current or signals.

[0108] Specifically, the insertion post 112 has an opening at one end away from the main housing 111, and a wiring channel 1122 is formed inward around the opening. The channel wall of the wiring channel 1122 is spaced apart from the side wall of the insertion post 112. The contact piece 1241 is located on the end face of the insertion post 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 piece 1241 and passes through the wiring channel 1122. The other end of the wire 1242 is connected to the circuit board 121. By placing the contact piece 1241 on the end face of the insertion post 112 away from the main housing 111, the second electrode piece can contact the positive contact terminal or the negative contact terminal in the power supply mounting cavity. When the second electrode piece is a positive electrode piece, it can contact the positive contact terminal. When the second electrode piece is a negative electrode piece, it can contact the negative contact terminal.

[0109] In one embodiment, reference is made to Figure 5 The outer wall of the main housing 111 is provided with an external threaded portion 1115, which is adapted to be threadedly connected to the controller 31.

[0110] Specifically, the controller 31 has a threaded opening that matches the external thread 1115 at the position corresponding to the opening of the power mounting cavity 3111. During installation, the insertion post 112 of the power adapter 1 is aligned with the power mounting cavity 3111 and inserted until the external thread 1115 of the main housing 111 contacts the threaded opening. Then, by rotating the power adapter 1, its threads can be locked onto the controller 31.

[0111] The threaded connection ensures a tight fit between the main housing 111 and the controller 31, preventing loosening or detachment due to vibration or external impact. Compared to welding or gluing, threaded connections are easier to disassemble and reinstall, facilitating maintenance and repair. The stability and robustness of the threaded connection improve the overall system reliability.

[0112] In one embodiment, a waterproof ring 113 is fitted at the root of the external thread portion 1115, and the waterproof ring 113 is adapted to be sealed to the controller 31.

[0113] The waterproof ring 113 is fitted at the root of the external thread 1115, that is, the part where the external thread meets the outer wall of the main housing 111. When the main housing 111 and the controller 31 are threaded together, the waterproof ring 113 can be effectively compressed and fill any tiny gaps between them. When the main housing 111 and the controller 31 are tightly screwed together, the waterproof ring 113 is subjected to pressure and deforms, thus fitting tightly against the contact surface of the two connecting parts. This tight fit forms an effective sealing barrier that can prevent the infiltration of moisture and other liquids.

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

[0115] On the other hand, a controller for an electric valve is provided, comprising:

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

[0117] Based on the power adapter 1 of this embodiment, the controller of this embodiment can be directly connected to the mains power or photovoltaic panel, realizing infinite cycle operation and completely overcoming the problems of poor battery life and high manpower maintenance costs caused by battery life issues.

[0118] On the other hand, refer to Figures 10-14 This embodiment also provides an electric valve device, including:

[0119] The electric valve 3 includes a valve body 32 and a controller 31. The controller 31 is connected to the valve body 32 for driving. The controller 31 is provided with a power supply mounting cavity 3111.

[0120] The aforementioned power adapter 1 has its insertion post 112 inserted into the power mounting cavity 3111.

[0121] Based on the power adapter 1 of this embodiment, the electric valve device of this embodiment can be directly connected to the mains power or photovoltaic panel, realizing infinite cycle operation and completely overcoming the problems of poor battery life and high manpower maintenance costs caused by battery life issues.

[0122] Referring to 14, the valve body 32 includes a valve housing 321 and a valve core 322 rotatably mounted in the valve housing 321. The flow direction and flow speed of the fluid in the valve housing 321 can be controlled by the rotation of the valve core 322. The controller 31 includes a controller housing 311, in which a control board, a motor, and a reducer are installed. The control board is used to control the operation of the motor. The motor is connected to the valve core 322 through the reducer to drive the valve core 322 to rotate according to the control command.

[0123] In one embodiment, a sensor is also included, the sensor being connected to a signal connector that is plugged into a connector 122 on the power adapter 1.

[0124] Depending on the specific application requirements, the sensor can be, but is not limited to, a flow sensor, a pressure sensor, or an EC / PH sensor. The power adapter 1 establishes communication between the sensor and the controller 31, achieving an integrated design for power supply and data transmission. This not only reduces the complexity and space required for the equipment but also simplifies the installation and connection process. Users only need one power adapter 1 to simultaneously meet the power supply and sensor data transmission needs of the electric valve 3.

[0125] EC (Electrical Conductivity Sensor) and PH (Potential of Hydrogen) are devices specifically designed to measure the electrical conductivity and pH of liquids. In agricultural fertilization systems, the EC and pH values ​​of fertilizers are crucial for crop growth. The EC value reflects the concentration of soluble salts in the fertilizer solution, while the pH value indicates the acidity or alkalinity of the solution. By monitoring these parameters, the quality and suitability of the fertilizer solution can be ensured. Therefore, the application of EC / pH sensors in fertilization systems is essential.

[0126] In another aspect, this embodiment also provides an irrigation and fertilization system, including the electric valve device described above.

[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 operating time and low manual maintenance cost.

[0128] In one embodiment, the irrigation and fertilization system includes a liquid pipeline and an electric valve device disposed on the liquid pipeline. The liquid pipeline is equipped with a sensor for detecting the liquid. The connector (122) includes a data connector that is connected to the sensor to transmit the sensed data detected by the sensor to the circuit board.

[0129] By using power adapter 1 to establish communication between the sensor and controller 31, an integrated design of power supply and data transmission is achieved. This not only reduces the complexity and space occupied by the equipment, but also simplifies the installation and connection process. Users only need to use power adapter 1 to simultaneously meet the power supply and sensor data transmission needs of the electric valve 3.

[0130] In this solution, the electric valve device included in the irrigation and fertilization system can be installed in the liquid pipeline for irrigation control alone; it can also be installed in the liquid pipeline for fertilization control alone; or it can be installed in both the irrigation and fertilization liquid pipelines to control both irrigation and fertilization.

[0131] In one embodiment, the electric valve device can be installed in the liquid pipeline for irrigation and fertilization. When the valve core of the electric valve device is rotated to the first position, the liquid pipeline can be irrigated, thereby controlling the irrigation through the electric valve device. When the valve core of the electric valve device is rotated to the second position, the electric valve device can be connected to the fertilization pipeline, thereby realizing the fertilization control.

[0132] Specifically, refer to Figure 15 In this embodiment, the liquid pipeline includes a main inlet pipe 51, a main outlet pipe 52, and a multi-way connector 53; the irrigation and fertilization system also includes a fertilizer storage container 4; the valve body 321 of the electric valve device includes an inlet 3211, a first outlet 3212, and two second outlets 3213; the main inlet pipe 51 is connected to the inlet 3211 of the electric valve device; the multi-way connector 53 is connected to the first outlet 3212 of the electric valve device; the main outlet pipe 52 is connected to the multi-way connector 53; the fertilizer storage container 4 includes an inlet connector and an outlet connector; the inlet connector is connected to the second outlet 3213 of the electric valve device through the inlet pipe 41, and the outlet connector is connected to the multi-way connector 53 through the outlet pipe 42.

[0133] Reference Figure 16The electric valve device controls the water flow in the valve housing 321, thereby controlling fertilization and irrigation. Specifically, when the irrigation function is activated, the second outlet 3213 of the electric valve device is closed, and all the water in the valve housing 321 flows out through the first outlet 3212. When the fertilization function is activated, one of the second outlets 3213 of the electric valve device opens, and part of the water in the valve housing 321 flows through the first outlet 3212 to the multi-way connector 53, while the other part flows through the second outlet 3213 to the inlet pipe 41, then through the fertilizer storage container 4 and the outlet pipe 42 to the multi-way connector 53 for collection, and then flows directly to the fertilization destination. Furthermore, the water output ratio of the first outlet 3212 and the second outlet 3213 can be controlled by the rotation angle of the valve core 322, enabling control of the fertilizer concentration. When the valve core of the electric valve device rotates to the first position, water flows from the inlet to the first outlet, achieving irrigation. When the valve core rotates to the second position, the second outlet 3212 of the electric valve device opens, transferring a portion of the water to the fertilizer storage container 4, which then outputs the fertilizer solution through the outlet pipe 42. Therefore, this embodiment achieves control of the fertilization rate and switching between fertilization and irrigation functions using a single electric valve device, offering advantages of simple structure and rich functionality.

[0134] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0135] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0136] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0137] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A power adapter, characterized in that, A controller (31) for mounting on an electric valve (3), the controller (31) having a power supply mounting cavity (3111); comprising: The adapter housing (11) is adapted to be installed in the power mounting cavity (3111). The adapter unit (12) includes a circuit board (121), a connector (122), a first electrode plate (123), and a second electrode plate (124). The circuit board (121) is installed inside the adapter housing (11). The connector (122), the first electrode plate (123), and the second electrode plate (124) are electrically connected to the circuit board (121). Of the first electrode plate (123) and the second electrode plate (124), one is adapted to contact the positive contact terminal (312) in the controller (31), and the other is adapted to contact the negative contact terminal (313) in the controller (31). The connector (122) is adapted to connect to an external power source.

2. The power adapter according to claim 1, characterized in that, The circuit board (121) is provided with a power adapter module and a data transmission module. The connector (122) includes a power connector and a data connector. The power connector is connected to the power adapter module and is adapted to interface with an external power source. The data connector is connected to the data transmission module and is adapted to establish a data connection with the controller (31).

3. The power adapter according to claim 2, characterized in that, The data transmission module includes a wireless communication device adapted to communicate wirelessly with the controller (31) to transmit data to the controller (31).

4. The power adapter according to any one of claims 1-3, characterized in that, The adapter housing (11) includes a main housing (111) and a insertion post (112), the insertion post (112) being adapted to be inserted into the power supply mounting cavity (3111), and the circuit board (121) being mounted inside the main housing (111).

5. The power adapter according to claim 4, characterized in that, The main housing (111) has a mounting groove (1113) on one side connected to the insertion post (112). A fixing part (1121) is provided at one end of the insertion post (112). The fixing part (1121) is inserted into the mounting groove (1113) to fix the circuit board (121) in the mounting groove (1113).

6. The power adapter according to claim 5, characterized in that, The first electrode plate (123) includes a contact ring (1231) and a connecting arm (1232) connected together. 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 to the circuit board (121).

7. The power adapter according to claim 6, characterized in that, The contact ring (1231) abuts against the end face of the main housing (111) near the insertion post (112), or abuts against the end face of the fixing part (1121) opposite to the main housing (111).

8. The power adapter according to claim 6, characterized in that, The inner wall of the mounting groove (1113) and / or the outer wall of the fixing part (1121) are provided with a clearance groove, and the connecting arm (1232) is placed in the clearance groove.

9. The power adapter according to claim 5, characterized in that, The fixing part (1121) is locked to the main housing (111) by connecting bolts (114).

10. The power adapter according to claim 5, characterized in that, The main housing (111) includes an annular wall panel (1111) and an inner partition (1112) fixed inside the annular wall panel (1111). The inner partition (1112) is close to the insertion post (112) and forms the mounting groove (1113) by enclosing the annular wall panel (1111). The inner partition (1112) is provided with a connection hole (11121) corresponding to the connector (122), and the connector (122) is aligned with the connection hole (11121).

11. The power adapter according to claim 10, characterized in that, The inner partition (1112) on the side away from the insert post (112) forms a connecting groove (1114) with the annular wall panel (1111).

12. The power adapter according to claim 11, characterized in that, The connecting groove (1114) is fitted with a removable sealing plug (115), which can seal the connecting hole (11121).

13. The power adapter according to claim 10, characterized in that, The inner partition (1112) has a locking threaded hole on the side away from the insert post (112).

14. The power adapter according to claim 10, characterized in that, The inner partition (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 (125) aligned with the light-transmitting hole (11122) and the indicator light (1211).

15. The power adapter according to claim 4, characterized in that, The second electrode plate (124) includes a contact plate (1241) and a wire (1242). The contact plate (1241) is fixed to one end of the insertion post (112) away from the main housing (111). The two ends of the wire (1242) are respectively connected to the contact plate (1241) and the circuit board (121).

16. The power adapter according to claim 15, characterized in that, The insertion post (112) has a wiring channel (1122) at its center, and the wire (1242) is disposed in the wiring channel (1122).

17. The power adapter according to claim 4, characterized in that, The outer wall of the main housing (111) is provided with an external thread (1115), which is adapted to be threadedly connected to the controller (31).

18. The power adapter according to claim 17, characterized in that, A waterproof ring (113) is fitted at the root of the external thread portion (1115), and the waterproof ring (113) is adapted to be sealed to the controller (31).

19. A controller for an electric valve, characterized in that, include: The power adapter (1) as described in any one of claims 1-18 is disposed in the power mounting cavity (3111) of the controller (31).

20. An electric valve device, characterized in that, include: An electric valve (3) includes a valve body (32) and a controller (31), wherein the controller (31) drives the valve body (32), and the controller (31) is provided with a power supply mounting cavity (3111); The power adapter (1) as described in any one of claims 1-18 is disposed in the power mounting cavity (3111).

21. The electric valve device according to claim 20, characterized in that, It also includes a sensor connected to a signal connector (122), which is plugged into a connector (122) on the power adapter (1).

22. An irrigation and fertilization system, characterized in that, Includes the electric valve device as described in claim 20 or 21.

23. The irrigation and fertilization system according to claim 22, characterized in that, The device includes a liquid pipeline and an electric valve device disposed on the liquid pipeline. The liquid pipeline is equipped with a sensor for detecting the liquid. The connector (122) includes a data connector that is connected to the sensor to transmit the sensing data detected by the sensor to the circuit board.

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