Sensor assembly, water outlet post and irrigation system

Abstract

The utility model provides a kind of sensor assembly, water outlet pile and irrigation system, sensor assembly includes: shell, circuit board, connecting piece, sealing element, connector and air pressure sensor;Shell inside has installation cavity, shell still has and communicates with the through port of installation cavity inside;Connector one end extends installation cavity through the through port, the other end of connector is located in installation cavity, and with sealing element abuts;Connector and through port seal fit;Sealing element is set in installation cavity, and the outer periphery of sealing element and the inner wall of installation cavity abut seal fit;Wherein, one end of connecting piece cooperates with circuit board, other end cooperates with shell thread, to make shell and circuit board press tightly sealing air pressure sensor, sealing element, connector.The utility model solves the problem of poor sealing, large assembly and maintenance difficulty, low batch production efficiency of air pressure sensor assembly in prior art using point sealing mode.

Description

Technical Field

[0001] This utility model relates to the field of air pressure sensor sealing technology, and more specifically, to a sensor assembly, a water outlet pile, and an irrigation system. Background Technology

[0002] Existing barometric pressure sensors used in agricultural irrigation play a crucial role in detecting internal air pressure in pipelines, especially in devices requiring water pressure monitoring and control, such as water outlet systems. In current technology, barometric pressure sensors are typically mounted on a PCB circuit board and connected to a pressure-transmitting connector on the lower casing via adhesive sealing to ensure accurate detection of pressure changes.

[0003] However, the above-mentioned dispensing sealing method has revealed the following technical problems in practice: 1. Poor sealing performance: Dispensing seals at the connection between the pressure sensor and the pagoda head are often affected by the fluidity of the adhesive, making it difficult to form a consistent and reliable seal. The cured adhesive may also cause gaps due to shrinkage or uneven curing, thereby reducing the sealing performance between the pressure sensor and the pagoda head, and between the pressure sensor and the PCB circuit board, making leakage easy and thus seriously reducing the defect rate of the water outlet pile products; 2. Increased difficulty in production, assembly and maintenance: The dispensing process requires precise control during assembly to ensure the appropriate amount of adhesive and accurate positioning. This not only increases the complexity of operations on the production line, but also prolongs the assembly time and reduces production efficiency; in addition, once a problem occurs with the product, the dispensing sealing method makes disassembly and maintenance difficult, increasing maintenance costs.

[0004] Therefore, existing pressure sensor assemblies using adhesive sealing methods suffer from poor sealing performance, high assembly and maintenance difficulty, and low mass production efficiency. There is an urgent need for a new pressure sensor assembly to solve these problems. Utility Model Content

[0005] This invention provides a sensor assembly, a water outlet pile, and an irrigation system to solve the problems of poor sealing, difficult assembly and maintenance, and low mass production efficiency of existing pressure sensor assemblies using adhesive sealing.

[0006] To address the aforementioned problems, according to one aspect of this utility model, a sensor assembly is provided, comprising: a housing, a circuit board, a connector, a seal, a joint, and a pressure sensor; the pressure sensor is disposed at the lower part of the circuit board; the housing has an internal mounting cavity, and the housing also has a through-hole communicating with the interior of the mounting cavity; one end of the connector extends out of the mounting cavity through the through-hole, and the other end of the connector is located within the mounting cavity and abuts against the seal; the connector and the through-hole are sealed together; the seal is disposed within the mounting cavity, and the outer periphery of the seal abuts against the inner wall of the mounting cavity; both axial ends of the seal abut against the pressure sensor and the connector, respectively; wherein, one end of the connector engages with the circuit board, and the other end engages with the housing via a thread, so that the housing and the circuit board press and seal the pressure sensor, the seal, and the connector.

[0007] Furthermore, all seals are made of elastic material; the seal has a through cavity inside, which extends through the seal along its axial direction; the gas pressure sensor has a gas inlet end that extends into the through cavity and is interference-fitted with the inner wall of the through cavity; the connector has a gas inlet end that extends into the through cavity and is interference-fitted with the inner wall of the through cavity; the connector has an airflow channel inside, which is connected to the outside of the housing and the gas inlet, respectively, so that the gas pressure sensor can detect the external gas pressure.

[0008] Furthermore, the connector includes an insertion section, a sealing section, and an extension section connected sequentially along the axial direction; an airflow channel passes through the insertion section, the sealing section, and the extension section sequentially; the insertion section extends into the through cavity and is interference-fitted with the inner wall of the through cavity; the sealing section is interference-fitted with the inner wall of the through port to seal the through port; the extension section is located outside the housing.

[0009] Furthermore, the seal includes a cylindrical segment and a frustum segment connected sequentially along the axial direction, with a through cavity passing through the cylindrical segment and the frustum segment sequentially; the cylindrical segment has a cylindrical structure and is positioned towards the pressure sensor; the frustum segment has a frustum structure and is positioned towards the connector; the connector is interference-fitted with the inner wall of the through cavity located within the frustum segment; wherein, with the direction along the axial direction of the passage and pointing towards the pressure sensor as the first direction, the outer circumferential dimension of the frustum segment gradually increases along the first direction; the inner wall shape of the mounting cavity for mating with the seal is adapted to the outer circumferential shape of the seal; and / or, the seal is made of waterproof silicone material.

[0010] Furthermore, the outer periphery of the seal is interference-fitted with the inner wall of the mounting cavity; the housing has a threaded post with an internal thread inside, and the end of the connector near the housing has an external thread, which mates with the internal thread to allow the connector to be detachably connected to the housing.

[0011] Furthermore, there are multiple threaded pillars and multiple connectors, with each connector corresponding to one of the multiple threaded pillars; and / or, the housing is made of plastic material and is integrally molded with the threaded pillars by injection molding.

[0012] Furthermore, the sensor assembly also includes multiple connecting bolts. One end of each connecting bolt mates with the circuit board, and the other end is threaded to the housing to fix the housing and the circuit board relatively. The multiple connecting bolts are spaced apart. The connector and the pressure sensor are both located between two adjacent connecting bolts. The connector is closer to the pressure sensor than the connecting bolt. By adjusting the thread engagement length between the connector and the housing, the tightness and sealing between the pressure sensor, the seal, and the connector can be adjusted.

[0013] According to another aspect of the present invention, a water outlet pile is provided, which includes the aforementioned sensor assembly.

[0014] Furthermore, the outlet pile also includes a ball valve and a water pipe. The ball valve is installed on the water pipe to control the water flow or shut-off. The connector has an internal airflow channel, which is connected to the inside of the ball valve and the gas inlet of the pressure sensor, so that the pressure sensor can detect the internal pressure of the ball valve.

[0015] According to another aspect of the present invention, an irrigation system is provided, the irrigation system including the above-mentioned water outlet pile; the irrigation system also includes an irrigation robot, the water outlet pile being disposed on the irrigation robot to follow the movement of the irrigation robot.

[0016] Applying the technical solution of this utility model, this utility model provides a sensor assembly, including: a housing, a circuit board, a connector, a seal, a joint, and a pressure sensor; the pressure sensor is disposed at the lower part of the circuit board; the housing has an internal mounting cavity, and the housing also has a through-hole communicating with the interior of the mounting cavity; one end of the connector extends out of the mounting cavity through the through-hole, and the other end of the connector is located inside the mounting cavity and abuts against the seal; the connector and the through-hole are sealed together; the seal is disposed inside the mounting cavity, and the outer periphery of the seal abuts against the inner wall of the mounting cavity; both axial ends of the seal abut against the pressure sensor and the connector, respectively; wherein, one end of the connector engages with the circuit board, and the other end engages with the housing threadedly, so that the housing and the circuit board press and seal the pressure sensor, the seal, and the connector.

[0017] This invention, by setting connectors to connect to the circuit board and housing respectively, not only effectively replaces the existing adhesive sealing technology with a simple structure, but also ensures the compression and sealing effect between the pressure sensor, seal, and connector. The threaded connection between the connector and housing allows for a detachable connection, thus ensuring both sealing performance and ease of disassembly of the pressure sensor, seal, and connector for subsequent assembly, disassembly, maintenance, and replacement. This invention replaces traditional adhesive sealing with a structural compression method. In practical use, this design has been found to significantly improve sealing performance, ensuring that the connector seal can withstand water pressure tests up to 300 kPa. It also greatly enhances the overall ease of assembly and maintenance, effectively reducing subsequent maintenance costs, significantly improving production assembly efficiency, and lowering the overall production cost. This invention has a simple and low-cost structure, is easy to assemble and maintain, and solves the problems of poor sealing performance, difficult assembly and maintenance, and low mass production efficiency associated with existing pressure sensor assemblies using adhesive sealing. It can bring high profit value to the subsequent production of water outlet piles and is suitable for large-scale promotion and use. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 A partial internal structural diagram of the water outlet pile provided in an embodiment of this utility model is shown;

[0020] Figure 2 A partial external structural diagram of the water outlet pile provided in an embodiment of this utility model is shown;

[0021] Figure 3 A partial structural diagram of the sensor assembly provided in an embodiment of the present invention after removing the housing is shown;

[0022] Figure 4 A schematic diagram of the internal structure of the seal, connector, and pressure sensor provided in an embodiment of the present invention is shown.

[0023] Figure 5 An exploded perspective view of the seal and connector provided in an embodiment of the present invention is shown.

[0024] The above figures include the following reference numerals:

[0025] 10. Housing; 11. Mounting cavity; 12. Pass-through port; 13. Threaded post;

[0026] 20. Circuit board;

[0027] 30. Connectors;

[0028] 40. Sealing element; 41. Through cavity; 42. Cylindrical section; 43. Frustum section;

[0029] 50. Connector; 51. Airflow channel; 52. Insertion section; 53. Sealing section; 54. Extension section;

[0030] 60. Pressure sensor; 61. Gas inlet;

[0031] 70. Connecting bolts. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0033] like Figures 1 to 5 As shown, an embodiment of this utility model provides a sensor assembly, including: a housing 10, a circuit board 20, a connector 30, a seal 40, a connector 50, and a pressure sensor 60; the pressure sensor 60 is disposed at the lower part of the circuit board 20; the housing 10 has an internal mounting cavity 11, and the housing 10 also has a through port 12 communicating with the interior of the mounting cavity 11; one end of the connector 50 extends out of the mounting cavity 11 through the through port 12, and the other end of the connector 50 is located inside the mounting cavity 11 and abuts against the seal 40; the connector 50 and the through port 12 are sealed together; the seal 40 is disposed inside the mounting cavity 11, and the outer periphery of the seal 40 abuts against the inner wall of the mounting cavity 11; both axial ends of the seal 40 abut against the pressure sensor 60 and the connector 50, respectively; wherein, one end of the connector 30 engages with the circuit board 20, and the other end is threaded into the housing 10, so that the housing 10 and the circuit board 20 press and seal the pressure sensor 60, the seal 40, and the connector 50.

[0034] This invention, by setting the connector 30 to connect to the circuit board 20 and the housing 10 respectively, not only effectively replaces the existing adhesive sealing technology with a simple structure, but also ensures the compression and sealing effect between the pressure sensor 60, the seal 40, and the connector 50. By setting the connector 30 to be threadedly engaged with the housing 10, the connector 30 and the housing 10 can be detachably connected, thus ensuring sealing while allowing the pressure sensor 60, the seal 40, and the connector 50 to be detachable, facilitating subsequent disassembly, assembly, maintenance, and replacement. This invention replaces traditional adhesive sealing with a structural compression method; in actual use, this design has proven to be effective. This invention not only significantly improves sealing performance, ensuring that the sealing point of connector 50 can withstand water pressure tests up to 300 kPa, but also greatly enhances the overall ease of assembly and maintenance of the product, effectively reducing subsequent maintenance costs, significantly improving production assembly efficiency, and lowering the overall production cost. This invention has a simple structure and low cost, facilitating assembly and subsequent maintenance. It solves the problems of poor sealing performance, difficult assembly and maintenance, and low mass production efficiency associated with existing pressure sensor assemblies using adhesive sealing methods. It can bring high profit value to the subsequent production of water outlet piles and is suitable for large-scale promotion and use.

[0035] like Figure 1 , Figure 4 and Figure 5 As shown, all seals 40 are made of elastic material; the seal 40 has a through cavity 41 inside, which extends through the seal 40 along its axial direction; the pressure sensor 60 has a gas inlet 61 at one end that extends into the through cavity 41 and is press-fitted with the inner wall of the through cavity 41; the connector 50 has a connector 50 at one end that extends into the through cavity 41 and is press-fitted with the inner wall of the through cavity 41; the connector 50 has an airflow channel 51 inside, which is connected to the outside of the housing 10 and the gas inlet 61, so that the pressure sensor 60 can detect the external air pressure.

[0036] The elastic material seal 40 ensures a tight connection between the pressure sensor 60 and the connector 50 through an interference fit. Simultaneously, the elastic material can accommodate different dimensional tolerances, improving the reliability of the seal. The airflow channel 51 connects to the outside of the housing 10 and the gas inlet 61, allowing the pressure sensor 60 to directly detect external air pressure without the need for transmission through other media, reducing pressure loss and measurement errors. This design not only improves the accuracy of air pressure detection but also enhances the durability and stability of the entire sensor sealing structure. In other embodiments, the material properties of the seal 40 can be changed or different interference fit structures can be designed to adapt to different air pressure detection ranges and environmental conditions, solving sealing and detection problems in extreme environments.

[0037] like Figure 1 , Figure 4 and Figure 5 As shown, the connector 50 includes an insertion section 52, a sealing section 53, and an extension section 54 connected sequentially along the axial direction; the airflow channel 51 passes through the insertion section 52, the sealing section 53, and the extension section 54 in sequence; the insertion section 52 extends into the through cavity 41 and is press-fitted with the inner wall of the through cavity 41; the sealing section 53 is press-fitted with the inner wall of the through port 12 to seal the through port 12; the extension section 54 is located outside the housing 10.

[0038] The segmented design of the connector 50, especially the interference fit between the sealing section 53 and the through-port 12, ensures the airflow channel 51 is sealed to the external environment, preventing the infiltration of water or other impurities. By designing the size and shape of the insertion section 52 and the sealing section 53, the degree of interference fit can be precisely controlled, thereby achieving optimal sealing performance. This design not only improves the sealing performance of the sensor sealing structure but also ensures that the pressure sensor 60 can accurately detect external pressure, enhancing the reliability and accuracy of the intelligent water jet. In other embodiments, the sealing requirements at different pressure levels can be addressed by adjusting the size and shape of the insertion section 52, the sealing section 53, and the extension section 54 to adapt to a wider range of irrigation system applications.

[0039] like Figure 1 , Figure 4 and Figure 5 As shown, the seal 40 includes a cylindrical section 42 and a frustum section 43 connected sequentially along the axial direction, and a through cavity 41 sequentially passes through the cylindrical section 42 and the frustum section 43; the cylindrical section 42 has a cylindrical structure and is positioned towards the pressure sensor 60; the frustum section 43 has a frustum structure and is positioned towards the connector 50; the connector 50 is interference-fitted with the inner wall of the through cavity 41 located in the frustum section 43; wherein, with the direction along the axial direction of the through port 12 and pointing towards the pressure sensor 60 as the first direction, the outer circumferential dimension of the frustum section 43 gradually increases along the first direction; the inner wall shape of the mounting cavity 11 for cooperating with the seal 40 is adapted to the outer circumferential shape of the seal 40; and / or, the seal 40 is made of waterproof silicone material.

[0040] The design of the cylindrical section 42 and the frustum section 43, combined with the use of waterproof silicone material, ensures the sealing performance of the seal 40 in different directions, especially the seal between the pressure sensor 60 and the connector 50. The gradually increasing outer circumference of the frustum section 43 allows it to form a tight seal with the inner wall of the mounting cavity 11, further enhancing the sealing effect. This design not only improves the waterproof performance of the sensor sealing structure but also ensures the stable operation of the pressure sensor 60 in various environments, enhancing the adaptability and reliability of the intelligent water jet. In other embodiments, the sealing and waterproofing problems in special environments can be solved by changing the size ratio of the cylindrical section 42 and the frustum section 43 or by using other types of waterproof materials, to adapt to a wider range of irrigation system applications.

[0041] like Figure 1 As shown, the outer periphery of the seal 40 is interference-fitted with the inner wall of the mounting cavity 11; the housing 10 has a threaded post 13, the threaded post 13 has an internal thread, and the end of the connector 30 near the housing 10 has an external thread, the external thread and the internal thread are engaged so that the connector 30 and the housing 10 can be detachably connected.

[0042] The interference fit between the seal 40 and the mounting cavity 11, and the threaded connection between the connector 30 and the housing 10, enable a detachable design for the sensor sealing structure. The threaded engagement between the threaded post 13 and the connector 30 allows for the disassembly and reinstallation of the entire sensor sealing structure without damaging the seal 40, facilitating maintenance and replacement. This technical solution not only improves the maintainability of the sensor sealing structure but also simplifies the maintenance process and reduces maintenance costs. In other embodiments, other types of detachable connection methods, such as snap-fit ​​connections or magnetic connections, can be used to address maintenance and replacement issues in different application scenarios, adapting to a wider range of usage needs.

[0043] Specifically, there are multiple threaded posts 13 and multiple connectors 30, with each connector 30 corresponding to and engaging with one of the multiple threaded posts 13; and / or, the housing 10 is made of plastic material and is integrally formed with the threaded posts 13 by injection molding.

[0044] The design of multiple threaded posts 13 and connectors 30 ensures uniform sealing and stable connection of the sensor sealing structure, improving the reliability and stability of the entire structure. The housing 10, made of plastic and integrally molded with the threaded posts 13 via injection molding, simplifies the manufacturing process, reduces production costs, and ensures structural strength and sealing. This design not only improves the production efficiency of the sensor sealing structure but also reduces production costs, enhancing the market competitiveness of the intelligent water jet. In other embodiments, sealing and connection issues in different environments can be addressed by changing the housing material or employing other molding processes to adapt to a wider range of irrigation system applications.

[0045] like Figure 1 and Figure 3 As shown, the sensor assembly also includes multiple connecting bolts 70. One end of each connecting bolt 70 axially engages with the circuit board 20, and the other end is threaded to the housing 10 to fix the housing 10 and the circuit board 20 relatively. The multiple connecting bolts 70 are spaced apart. The connector 30 and the pressure sensor 60 are both located between two adjacent connecting bolts 70. The connector 30 is closer to the pressure sensor 60 than the connecting bolts 70. By adjusting the thread engagement length between the connector 30 and the housing 10, the tightness and sealing degree between the pressure sensor 60, the seal 40, and the connector 50 can be adjusted.

[0046] The connecting bolts 70 ensure a secure connection between the circuit board 20 and the housing 10. Simultaneously, by adjusting the threaded engagement length between the connector 30 and the housing 10, the tightness and sealing degree between the pressure sensor 60, the seal 40, and the connector 50 can be precisely controlled. The threaded engagement between the connector 30 and the housing 10 allows for adjustment of the clamping force as needed, thereby achieving optimal sealing. This technical solution not only improves the sealing performance of the sensor's sealing structure but also ensures the stable operation of the pressure sensor 60 in various environments, enhancing the adaptability and reliability of the intelligent water jet. In other embodiments, the number and position of the connecting bolts 70 can be changed, or other types of connectors can be used to solve sealing and connection problems in different application scenarios, adapting to a wider range of usage needs.

[0047] like Figure 1 and Figure 2 As shown, this utility model also provides a water outlet pile, which includes the aforementioned sensor assembly.

[0048] Specifically, the outlet pile also includes a ball valve and a water pipe. The ball valve is installed on the water pipe to control the water pipe to flow out or close. The connector 50 has an airflow channel 51 inside, which is connected to the inside of the ball valve and the gas inlet 61 of the pressure sensor 60, so that the pressure sensor 60 can detect the air pressure inside the ball valve.

[0049] The ball valve and water pipe configuration enables automated irrigation control of the intelligent water jet. The airflow channel 51 of the connector 50 connects to the inside of the ball valve and the gas inlet 61 of the pressure sensor 60, ensuring that the pressure sensor 60 can monitor the internal pressure of the ball valve in real time, thus achieving precise control of the irrigation system. The design of the airflow channel 51 allows the pressure sensor 60 to directly detect pressure changes inside the ball valve without the need for transmission through other media, reducing pressure loss and measurement errors. This configuration not only improves the level of automated control of the intelligent water jet but also enhances the accuracy and reliability of the entire irrigation system. In other embodiments, the structure of the airflow channel 51 can be modified or different types of valves can be used to address control and monitoring issues under different irrigation needs, adapting to a wider range of irrigation system applications.

[0050] This utility model also provides an irrigation system, which includes the aforementioned water outlet pile; the irrigation system also includes an irrigation robot, and the water outlet pile is mounted on the irrigation robot to follow the movement of the irrigation robot.

[0051] The intelligent irrigation system integrates a smart water jet into an irrigation robot, achieving automation and intelligence, and improving irrigation efficiency and accuracy. The smart water jet can adjust the irrigation strategy in real time based on the robot's movement and position, thus achieving precise irrigation of farmland. This technical solution not only improves the automation level of the irrigation system but also reduces irrigation costs and increases water resource utilization efficiency. In other embodiments, the functions of the smart water jet can be enhanced, such as integrating temperature and humidity sensors, to address irrigation needs under different environmental conditions and adapt to a wider range of irrigation system applications.

[0052] It should be noted that the technical solution of this utility model, by adopting a structural compression method instead of the traditional dispensing seal, not only solves the porosity problem existing in the dispensing solution and improves the overall sealing performance and reliability, but also greatly improves the product's assemblability and maintainability. This utility model eliminates the original dispensing hole, replacing it with a threaded connection via a connector 30 (e.g., a screw), and adds threaded posts on the housing 10, making the connection between the pressure sensor 60 and the housing more stable, while also facilitating later disassembly and maintenance, significantly reducing maintenance costs. Furthermore, the design of the silicone sealant 40 better fits the inner wall of the mounting cavity 11, achieving reliable sealing through an interference fit, simplifying the assembly process, reducing the original dispensing time, thereby lowering the overall production cost and improving production efficiency. These improvements not only ensure high product performance but also save production costs, significantly and positively impacting product competitiveness.

[0053] In summary, this utility model provides a sensor assembly, a water outlet pile, and an irrigation system. By using a connector 30 to connect to the circuit board 20 and the housing 10 respectively, this utility model not only effectively replaces the existing adhesive sealing technology with a simple structure but also ensures a tight seal between the pressure sensor 60, the seal 40, and the connector 50. The threaded connection between the connector 30 and the housing 10 allows for a detachable connection, thus ensuring a tight seal while making the pressure sensor 60, seal 40, and connector 50 detachable for subsequent disassembly, assembly, maintenance, and replacement. This utility model replaces traditional adhesive sealing with a structural compression method. In practical use, this design has been found to significantly improve sealing performance, ensuring that the sealing point of connector 50 can withstand water pressure tests up to 300Kpa. It also greatly enhances the overall ease of assembly and maintenance, effectively reducing subsequent maintenance costs, significantly improving production and assembly efficiency, and lowering the overall production cost. This invention features a simple and low-cost structure, facilitating assembly and subsequent maintenance. It solves the problems of poor sealing, difficult assembly and maintenance, and low mass production efficiency associated with existing pressure sensor assemblies using adhesive sealing methods. This design can bring high profit value to the subsequent production of water outlet piles and is suitable for large-scale promotion and use.

[0054] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification.

[0055] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0056] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0057] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0058] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0059] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0060] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sensor assembly, characterized in that, include: The package includes a housing (10), a circuit board (20), a connector (30), a seal (40), a connector (50), and a pressure sensor (60); the pressure sensor (60) is located at the lower part of the circuit board (20); the housing (10) has an internal mounting cavity (11), and the housing (10) also has a passage (12) communicating with the interior of the mounting cavity (11); one end of the connector (50) extends out of the mounting cavity (11) through the passage (12), and the other end of the connector (50) is located inside the mounting cavity (11) and abuts against the seal (40); the connector (50) The sealing element (40) is disposed in the mounting cavity (11), and the outer periphery of the sealing element (40) abuts against the inner wall of the mounting cavity (11) for sealing. The two ends of the sealing element (40) abut against the pressure sensor (60) and the connector (50) respectively. One end of the connector (30) is engaged with the circuit board (20), and the other end is threaded into the housing (10) so that the housing (10) and the circuit board (20) press and seal the pressure sensor (60), the sealing element (40), and the connector (50).

2. The sensor assembly according to claim 1, characterized in that, All the sealing elements (40) are made of elastic material; the sealing element (40) has a through cavity (41) inside, and the through cavity (41) passes through the sealing element (40) along the axial direction of the sealing element (40); the pressure sensor (60) has one end with a gas inlet (61) that extends into the through cavity (41) and is press-fitted with the inner wall of the through cavity (41); the connector (50) has one end facing the pressure sensor (60) that extends into the through cavity (41) and is press-fitted with the inner wall of the through cavity (41); the connector (50) has an airflow channel (51) inside, and the airflow channel (51) is connected to the outside of the housing (10) and the gas inlet (61) respectively, so that the pressure sensor (60) can detect the external air pressure.

3. The sensor assembly according to claim 2, characterized in that, The connector (50) includes an insertion section (52), a sealing section (53), and an extension section (54) connected sequentially along the axial direction; the airflow channel (51) passes through the insertion section (52), the sealing section (53), and the extension section (54) sequentially; the insertion section (52) extends into the through cavity (41) and is press-fitted with the inner wall of the through cavity (41); the sealing section (53) is press-fitted with the inner wall of the through port (12) to seal the through port (12); the extension section (54) is located outside the housing (10).

4. The sensor assembly according to claim 2, characterized in that, The sealing element (40) includes a cylindrical segment (42) and a frustum segment (43) connected sequentially along the axial direction, and the through cavity (41) sequentially passes through the cylindrical segment (42) and the frustum segment (43); the cylindrical segment (42) has a cylindrical structure and is positioned towards the pressure sensor (60); the frustum segment (43) has a frustum structure and is positioned towards the connector (50); the connector (50) is interference-fitted with the inner wall of the through cavity (41) located in the frustum segment (43); wherein, with the direction along the axial direction of the through port (12) and pointing towards the pressure sensor (60) as the first direction, the outer circumferential dimension of the frustum segment (43) gradually increases along the first direction; the inner wall shape of the mounting cavity (11) for cooperating with the sealing element (40) is adapted to the outer circumferential shape of the sealing element (40); and / or, the sealing element (40) is made of waterproof silicone material.

5. The sensor assembly according to claim 1, characterized in that, The outer periphery of the seal (40) is press-fitted with the inner wall of the mounting cavity (11); the housing (10) has a threaded post (13) with an internal thread, and the connector (30) has an external thread at one end near the housing (10), which engages with the internal thread to make the connector (30) detachably connected to the housing (10).

6. The sensor assembly according to claim 5, characterized in that, There are multiple threaded posts (13) and multiple connectors (30), with each connector (30) corresponding to and cooperating with one of the multiple threaded posts (13); and / or, the housing (10) is made of plastic material and is integrally formed with the threaded posts (13) by injection molding.

7. The sensor assembly according to claim 1, characterized in that, The sensor assembly also includes multiple connecting bolts (70), one end of which engages with the circuit board (20) in the axial direction, and the other end is threaded to the housing (10) to fix the housing (10) and the circuit board (20) relatively. The multiple connecting bolts (70) are spaced apart. The connector (30) and the pressure sensor (60) are both located between two adjacent connecting bolts (70). The connector (30) is closer to the pressure sensor (60) than the connecting bolts (70). By adjusting the thread engagement length between the connector (30) and the housing (10), the tightness and sealing degree between the pressure sensor (60), the seal (40), and the connector (50) can be adjusted.

8. A water outlet pile, characterized in that, The water outlet pile includes the sensor assembly as described in any one of claims 1 to 7.

9. The water outlet pile according to claim 8, characterized in that, The water outlet also includes a ball valve and a water pipe. The ball valve is installed on the water pipe to control the water pipe to discharge or close. The connector (50) has an airflow channel (51) inside. The airflow channel (51) is connected to the inside of the ball valve and the gas inlet (61) of the pressure sensor (60) to enable the pressure sensor (60) to detect the internal pressure of the ball valve.

10. An irrigation system, characterized in that, The irrigation system includes the water outlet pile as described in claim 9; the irrigation system also includes an irrigation robot, the water outlet pile being mounted on the irrigation robot to follow the movement of the irrigation robot.

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