Fertilization system

The fertilization system, which combines intelligent pumps and liquid level sensors, solves the problems of complex design and environmental pollution of existing fertilization systems, achieving automated and precise fertilization, reducing costs and energy consumption, and meeting the requirements of green technology.

WO2026103148A1PCT designated stage Publication Date: 2026-05-21GUANGZHOU XAIRCRAFT TECH CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
GUANGZHOU XAIRCRAFT TECH CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing fertilization systems are complex in design and costly, leading to difficulties in installation and maintenance, and may cause environmental pollution due to improper use of fertilizers.

Method used

The fertilization system combines a smart pump and a liquid level sensor. The smart pump integrates a controller, and the liquid level sensor is connected to the controller to achieve automated control of the fertilization progress. It also incorporates an EC/PH sensor to monitor fertilizer quality and optimizes the pump body and motor structure to improve energy efficiency.

Benefits of technology

It achieves automated fertilization, reduces fertilizer waste and environmental pollution, lowers energy consumption, meets green technology requirements, and has a simple structure, low cost, and is easy to install and maintain.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

A fertilization system, comprising: a smart pump (100), which comprises a pump body (11), a motor (12) and a controller (121), the controller (121) being electrically connected to the motor (12), the motor (12) being in transmission connection with the pump body (11), and the pump body (11) being connected to a fertilizer outlet of a fertilizer storage container (200); and a liquid level sensor (300), which is mounted on the fertilizer storage container (200) for monitoring the height of a liquid level in the fertilizer storage container (200), and is in signal connection with the controller (121). The controller (121) is integrated in the smart pump (100), and during operation, the smart pump (100) can automatically operate according to a preset operating procedure, so as to realize automation control of fertilization progress. Moreover, the operation of the smart pump (100) can also be controlled on the basis of a signal fed back by the liquid level sensor (300), thus achieving the advantages of high automation degree and high integration level. By means of the automation control of the smart pump (100) and the precise monitoring of the liquid level sensor (300), precise fertilization can be achieved, thereby avoiding fertilizer waste and environmental pollution caused by excessive fertilization, and reducing energy consumption.
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Description

A fertilization system

[0001] 1. This disclosure claims priority to Chinese Patent Application No. 202411627104.5, filed on November 14, 2024, entitled “A Fertilizer Application System”, the entire contents of which are incorporated herein by reference.

[0002] 2. This disclosure also claims priority to Chinese Patent Application No. 202422785872.5, filed on November 14, 2024, entitled “A Fertilizer Application System”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the technical field of agricultural equipment, and more particularly to a fertilization system. Background Technology

[0004] Integrated water and fertilizer technology, also known as irrigation and fertilization technology, is a modern advanced agricultural technology that combines drip irrigation and fertilization. This technology primarily utilizes drip irrigation systems, using water as a carrier to apply fertilizer simultaneously with irrigation, achieving integrated utilization and management of water and fertilizer. This ensures that water and fertilizer are supplied to crops in an optimized combination within the soil. However, existing fertilization systems suffer from drawbacks such as complex design and high cost, leading to difficulties in installation and maintenance for users. Furthermore, traditional fertilization systems may impose environmental burdens due to the irrational use or waste of fertilizers during operation. For example, excessive fertilization can lead to soil pollution and eutrophication of water bodies, failing to meet the requirements of green technology and environmental protection.

[0005] Therefore, developing a fertilization system that can efficiently utilize fertilizers, reduce waste, and minimize environmental impact is an important direction for the development of green agricultural technologies. The fertilization system disclosed herein is based on this green technology concept, aiming to achieve intelligent, efficient, and environmentally friendly fertilization processes through innovative design and technical means, thereby meeting the stringent requirements of green technologies. Summary of the Invention

[0006] The objectives of this disclosure include, for example, providing a fertilization system capable of automated fertilization, including a fertilizer storage container, an intelligent pump, and a liquid level sensor. The intelligent pump integrates a controller, and the liquid level sensor is signal-connected to the controller. During operation, the intelligent pump can operate automatically according to a preset working program to achieve automated control of the fertilization progress.

[0007] To achieve the above objectives, the present disclosure adopts the following technical solution:

[0008] A fertilization system is provided, comprising:

[0009] The intelligent pump includes a pump body, a motor, and a controller. The controller is electrically connected to the motor, and the motor is driven by the pump body. The pump body is connected to the fertilizer outlet of the fertilizer storage container.

[0010] A liquid level sensor is installed in the fertilizer storage container to monitor the liquid level inside the container and is connected to the controller signal.

[0011] In an optional implementation, the controller is provided with a wireless communication unit, through which the controller communicates wirelessly with the user terminal.

[0012] In an optional implementation, an external antenna is also included, which is signal-connected to the wireless communication unit via a first signal line.

[0013] In an optional embodiment, an antenna bracket is also included, on which the external antenna is mounted.

[0014] In an optional embodiment, the antenna bracket is mounted on one side of the fertilizer storage container, and a side support rod extends from one side of the antenna bracket, with the liquid level sensor mounted on the side support rod.

[0015] In an optional embodiment, the side support rod is connected to a leveling bracket, and the liquid level sensor is mounted on the leveling bracket to maintain the stability of the liquid level sensor.

[0016] In an optional embodiment, the leveling bracket includes a first bracket body and a second bracket body. The first bracket body is fixedly connected to the side support rod, and the second bracket body is connected to the first bracket body and can rotate relative to the first bracket body about the X direction. The liquid level sensor is connected to the second bracket body and can rotate relative to the second bracket body about the Z direction.

[0017] In an optional embodiment, the first support body is provided with a first central hole and a first arc-shaped hole. The hole axis of the first central hole extends along the X direction, and the first arc-shaped hole is arranged around the first central hole. The second support body is rotatably connected to the first central hole by a first rotating pin and slidably connected to the first arc-shaped hole by a first guide pin.

[0018] The second support body is provided with a second central hole and a second arc-shaped hole. The hole axis of the second central hole extends along the Z direction, and the second arc-shaped hole is arranged around the second central hole. The liquid level sensor is rotatably connected to the second central hole through a second rotating pin and slidably connected to the second arc-shaped hole through a second guide pin.

[0019] In an optional embodiment, the liquid level sensor includes a sensor body and a sensor base, the sensor body being mounted on the sensor base, and the sensor base being rotatably connected to the second support body.

[0020] In an optional implementation, an EC / pH sensor is also included, connected to the pump body to monitor the EC / pH value of the fertilizer, and signal-connected to the controller.

[0021] In an optional embodiment, the pump body includes an inlet port and an outlet port, and the EC / PH sensor is connected to the inlet port or the outlet port.

[0022] In an optional embodiment, the pump body has a three-way pipe at its inlet or outlet interface. The first interface of the three-way pipe is connected to the inlet or outlet interface, and the second interface of the three-way pipe is connected to the inlet or outlet pipeline. The three-way pipe has a sensing interface, and the EC / pH sensor is installed at the sensing interface to sense the EC / pH value of the fertilizer flowing through the three-way pipe.

[0023] In an optional implementation, the EC / PH sensor is connected to a second signal line, which is plugged into the controller.

[0024] In an optional embodiment, a stirring mechanism is also included, which extends into the fertilizer storage container to stir the fertilizer.

[0025] In an optional embodiment, the pump body includes a pump casing and a pushing mechanism installed within the pump casing, the pushing mechanism being used to push fertilizer through the pump; the motor includes a motor housing and a motor body, the motor body and the controller being installed within the motor housing, the motor housing being fixedly connected to the pump casing, the motor body including a motor shaft, one end of the motor shaft being connected to the pushing mechanism, and the other end being connected to a fan blade; the rotation of the fan blade drives the exchange of airflow between the inside and outside of the motor housing to promote heat dissipation of the motor body and the controller.

[0026] In an optional embodiment, a motor cavity is formed inside the motor housing, and the motor body, the controller, and the fan blades are disposed inside the motor cavity. An air outlet is connected to the side of the motor cavity facing away from the pump housing. An air inlet cavity is formed between the motor housing and the pump housing, and a first air inlet is connected to the side of the air inlet cavity. The motor cavity is connected to the air inlet cavity.

[0027] In an optional embodiment, the motor cavity and the air inlet cavity are separated by a motor base plate, and the motor base plate is provided with a first air passage hole connecting the motor cavity and the air inlet cavity.

[0028] In an optional embodiment, the motor body includes a stator assembly and a rotor assembly. The rotor assembly includes coils. The stator assembly is fixed to the motor base plate. The rotor assembly is sleeved on the outer periphery of the stator assembly and spaced apart from the motor base plate. The first air passage is aligned with the rotor assembly.

[0029] In an optional embodiment, a reinforcing base plate is connected to the side of the stator assembly near the motor base plate. The reinforcing base plate is fixed to the motor base plate, and a second air passage corresponding to the first air passage is provided on the reinforcing base plate.

[0030] In an optional embodiment, the motor base plate is provided with a support rib mesh on the side near the motor cavity, and the reinforcing base plate abuts against the support rib mesh.

[0031] In an optional embodiment, a second air inlet is provided on the motor housing corresponding to the installation position of the controller.

[0032] In an optional embodiment, the controller is provided with a connector, and the second air inlet is correspondingly provided with the connector to allow an external connector to be plugged into the connector through the second air inlet.

[0033] In an optional embodiment, the controller is equipped with a control protective cover, and the control protective cover is provided with a plug-in clearance hole corresponding to the plug-in socket.

[0034] In an optional embodiment, the control shield is provided with heat dissipation fins.

[0035] In an optional embodiment, a support frame is provided on the motor base plate, the periphery of the control protective cover is sealed to the support frame, and the controller is installed on the side of the control protective cover facing the motor base plate.

[0036] In an optional implementation, the controller is provided with a main control unit and an electronic speed control unit.

[0037] In an optional embodiment, the motor housing includes a motor base and a motor cover. The motor base is fixedly connected to the pump housing, and the motor cover covers the side of the motor base facing away from the pump housing. The air inlet cavity is formed between the motor base and the pump housing, and the motor cavity is formed between the motor cover and the motor base.

[0038] In an optional embodiment, the motor base includes a motor base plate and a base plate enclosure surrounding the periphery of the motor base plate. The base plate enclosure extends toward the side where the pump housing is located and connects to the pump housing. The first air inlet is disposed on the base plate enclosure.

[0039] And / or, the air outlet is located on the motor cover.

[0040] In an optional embodiment, an air inlet cover is also included. The air inlet cover is installed on the side of the motor housing corresponding to the first air inlet. An air distribution gap is formed between the air inlet cover and the motor housing. The air inlet cover is provided with a third air inlet, which is offset from the first air inlet.

[0041] In an optional embodiment, a pump base is also included, wherein the pump body and the motor are integrally mounted on the pump base.

[0042] In an optional embodiment, the first air inlet is located on the bottom side of the motor housing, and the air inlet cover is located on the top side of the pump base.

[0043] In an optional embodiment, the EC / PH sensor includes a housing, a first detection probe, a second detection probe, and a control board, wherein,

[0044] The first detection probe is built into the housing and partially exposed on the surface of the housing, and is used to detect the conductivity of the liquid;

[0045] The second detection probe is built into the housing and partially exposed on the surface of the housing, and is used to detect the acidity or alkalinity of the liquid;

[0046] The control board is built into the housing and is electrically connected to the first detection probe and the second detection probe, respectively.

[0047] In an optional embodiment, a first probe hole and a second probe hole are respectively provided on the end face of the first end of the housing. A portion of the first detection probe extends through the first probe hole and is exposed on the surface of the housing, and a portion of the second detection probe extends through the second probe hole and is exposed on the surface of the housing.

[0048] In an optional embodiment, a protective structure is provided around the periphery of the first end face of the housing, and portions of the first detection probe and the second detection probe both protrude from the end face of the first end of the housing and are both within the protection range of the protective structure.

[0049] In an optional embodiment, the protective structure includes a plurality of protective protrusions, which are spaced apart along the periphery of the end face of the first end of the housing to surround and protect the portion of the first detection probe and the portion of the second detection probe that protrude from the end face of the first end of the housing.

[0050] The beneficial effects of this disclosure include: This disclosure provides a fertilization system capable of automated fertilization, comprising a fertilizer storage container, an intelligent pump, and a liquid level sensor. The intelligent pump integrates a controller, and the liquid level sensor is signal-connected to the controller. During operation, the intelligent pump can operate automatically according to a preset working program, achieving automated control of the fertilization progress. Furthermore, the operation of the intelligent pump can be controlled by combining the feedback signal from the liquid level sensor, exhibiting advantages of high automation and high integration. Clearly, the fertilization system of this solution has a simple structure and low cost. In field applications, users only need to simply connect the fertilizer storage container and the intelligent pump using pipelines, and connect the intelligent pump to the fertilization pipeline, offering advantages of simple installation and easy maintenance.

[0051] Through automated control of the intelligent pump and precise monitoring by the liquid level sensor, precision fertilization can be achieved, mitigating fertilizer waste and environmental pollution caused by over-fertilization, while reducing energy consumption, aligning with the environmental protection principles of green technology. Furthermore, the fertilization system disclosed herein is designed with resource efficiency and environmental sustainability in mind. For example, by optimizing the structural design of the pump body and motor, energy utilization efficiency is improved, reducing energy consumption; simultaneously, the real-time monitoring function of the liquid level sensor ensures that the fertilizer in the storage container is fully utilized, avoiding resource waste and potential environmental pollution caused by fertilizer residue. These design features all embody the application of green technology in the fertilization system and meet environmental protection requirements. Attached Figure Description

[0052] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments.

[0053] Figure 1 is a schematic diagram of the fertilization system according to an embodiment of the present disclosure;

[0054] Figure 2 is a schematic diagram of the installation structure of the intelligent pump, external antenna, and liquid level sensor according to an embodiment of this disclosure;

[0055] Figure 3 is an enlarged view of region A in Figure 2;

[0056] Figure 4 is a cross-sectional view of the structure shown in Figure 3;

[0057] Figure 5 is an enlarged view of region B in Figure 2;

[0058] Figure 6 is a schematic diagram of the installation structure of the liquid level sensor according to an embodiment of this disclosure;

[0059] Figure 7 is an exploded schematic diagram of the structure shown in Figure 6;

[0060] Figure 8 is a schematic diagram of the structure of an intelligent pump according to an embodiment of the present disclosure;

[0061] Figure 9 is a second schematic diagram of the structure of the intelligent pump according to an embodiment of this disclosure;

[0062] Figure 10 is one of the exploded schematic diagrams of the intelligent pump according to an embodiment of this disclosure;

[0063] Figure 11 is a second exploded view of the intelligent pump according to an embodiment of this disclosure;

[0064] Figure 12 is a radial cross-sectional view of the intelligent pump according to an embodiment of the present disclosure;

[0065] Figure 13 is an enlarged view of region C in Figure 12;

[0066] Figure 14 is a schematic diagram of the pump body and dual-shaft motor assembly according to an embodiment of the present disclosure;

[0067] Figure 15 is an axial sectional view of the structure shown in Figure 14;

[0068] Figure 16 is an enlarged view of region D in Figure 15;

[0069] Figure 17 is a schematic diagram of the structure shown in Figure 4 after the motor cover is hidden.

[0070] Figure 18 is a schematic diagram of the structure of the motor bottom shell according to an embodiment of this disclosure;

[0071] Figure 19 is a schematic diagram of the structure of the motor base, motor body and controller according to an embodiment of this disclosure;

[0072] Figure 20 is a schematic diagram of the controller according to an embodiment of this disclosure;

[0073] Figure 21 is a schematic diagram of the structure of the pump base according to an embodiment of the present disclosure;

[0074] Figure 22 is a schematic diagram of the structure of the motor cover according to an embodiment of the present disclosure;

[0075] Figure 23 is a schematic diagram of the structure of the EC / PH sensor according to an embodiment of this disclosure;

[0076] Figure 24 is a schematic diagram of the structure of the EC / PH sensor according to an embodiment of this disclosure;

[0077] Figure 25 is a cross-sectional view of the EC / PH sensor according to an embodiment of this disclosure.

[0078] In the picture:

[0079] 100. Intelligent pump; 11. Pump body; 111. Pushing mechanism; 112. Pump casing; 1121. Inlet port; 1122. Outlet port; 12. Motor; 121. Controller; 1211. Connector; 1212. Control protection cover; 12121. Heat sink; 122. Motor body; 1221. Motor shaft; 1222. Stator assembly; 1223. Rotor assembly; 1224. Reinforcing base plate; 123. Fan blade; 124. Motor Casing; 1241, Motor base housing; 12411, First air inlet; 12412, First air vent; 12413, Motor base plate; 12414, Base plate enclosure; 12415, Support frame; 12416, Support rib mesh; 1242, Motor cover; 12421, Air outlet; 12422, Second air inlet; 1243, Motor cavity; 1244, Air inlet cavity; 13, Pump base; 131, Air inlet cover; 1311, Third air inlet; 1 312. Air distribution interval; 200. Fertilizer storage container; 21. Fertilizer outlet; 300. Liquid level sensor; 31. Sensor body; 32. Third signal line; 33. Sensor base; 400. Antenna bracket; 41. Side support rod; 42. Leveling bracket; 421. First bracket body; 4211. First center hole; 4212. First arc-shaped hole; 4213. First rotating pin; 4214. First guide pin; 422. Second bracket body; 4221. The... Two central holes; 4222, second arc-shaped hole; 4223, second rotating pin; 4224, second guide pin; 500, stirring mechanism; 600, external antenna; 61, first signal line; 700, EC / PH sensor; 71, three-way pipe; 711, sensing interface; 72, second signal line; 710, housing; 712, protective structure; 713, connecting part; 720, first detection probe; 730, second detection probe; 740, control board. Detailed Implementation

[0080] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by this disclosure clearer, the technical solutions of the embodiments of this disclosure are further described in detail below. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0081] In the description of this disclosure, 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 disclosure based on the specific circumstances.

[0082] In this disclosure, 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 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 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.

[0083] The fertilization system disclosed herein is designed with green technology requirements in mind, aiming to achieve an efficient and environmentally friendly fertilization process through intelligent and automated technologies. Specifically, the automated control function of the intelligent pump can precisely control the fertilizer delivery rate according to a preset fertilization program, avoiding fertilizer waste and environmental pollution caused by over-fertilization. Simultaneously, the real-time monitoring function of the liquid level sensor ensures that the fertilizer in the storage container is fully utilized, reducing resource waste. Furthermore, by optimizing the structural design of the pump body and motor, energy efficiency is improved, and the system's operating energy consumption is reduced, further embodying the environmental protection concept.

[0084] Integrated water and fertilizer technology, also known as irrigation and fertilization technology, is a modern advanced agricultural technology that combines drip irrigation with fertilization. This technology primarily utilizes drip irrigation systems, using water as a carrier to apply fertilizer simultaneously with irrigation, achieving integrated utilization and management of water and fertilizer. This allows water and fertilizer to be supplied to crops in an optimized combination within the soil. However, existing fertilization systems suffer from drawbacks such as complex design and high cost, leading to difficulties in installation and maintenance for users.

[0085] To overcome the above technical problems, referring to Figure 1, this embodiment provides a fertilization system, including a smart pump 100 and a liquid level sensor 300. The smart pump 100 includes a pump body 11, a motor 12, and a controller 121. The controller 121 is electrically connected to the motor 12, and the motor 12 is driven by the pump body 11. The pump body 11 is connected to the fertilizer outlet 21 of the fertilizer storage container 200. The liquid level sensor 300 is installed in the fertilizer storage container 200 to monitor the liquid level in the fertilizer storage container 200 and is signal-connected to the controller 121.

[0086] Through the automated control of the intelligent pump 100 and the precise monitoring of the liquid level sensor 300, this system can achieve precise fertilization, reduce fertilizer waste, and lower the burden on the environment. Meanwhile, the integrated design and optimized heat dissipation structure of the intelligent pump 100 further improve the system's energy efficiency and operational stability, meeting the requirements of green technology.

[0087] The fertilizer storage container 200 is used to store fertilizer. In this embodiment, the fertilizer application system pumps the fertilizer out through the intelligent pump 100. Therefore, the fertilizer stored in the fertilizer storage container 200 should be in a liquid state. When applying the fertilizer, liquid or solid fertilizer can be added to the fertilizer storage container 200, and then water can be added to dissolve the fertilizer, so that the fertilizer is fully dissolved in the water to form liquid fertilizer.

[0088] The pump body 11 of the intelligent pump 100 has an inlet port 1121 and an outlet port 1122. During on-site installation, after fixing the fertilizer storage container 200 and the intelligent pump 100 in place, a pipe is used to connect the fertilizer outlet 21 of the fertilizer storage container 200 to the inlet port 1121 of the intelligent pump 100, and then a pipe is used to connect the outlet port 1122 to the on-site drip irrigation line. This allows the intelligent pump 100 to automatically pump the liquid fertilizer from the fertilizer storage container 200. Preferably, the fertilizer outlet 21 is located at the bottom of the fertilizer storage container 200 to facilitate the emptying of the liquid fertilizer inside the fertilizer storage container 200.

[0089] Because the intelligent pump 100 integrates components such as the motor 12 and the controller 121, and the controller 121 can be pre-loaded with an automatic control program, the intelligent pump 100 can automatically operate according to the set fertilization time and amount. The entire fertilization process requires no manual intervention, greatly reducing labor input. Moreover, during on-site installation, the entire intelligent pump 100 can be installed as a single unit, greatly simplifying the installation process.

[0090] The liquid level sensor 300 is used to monitor the liquid level in the fertilizer storage container 200 and is connected to the controller 121. During operation, the liquid level sensor 300 reports the liquid level in the fertilizer storage container 200 to the controller 121 in real time as an electrical signal. When the liquid level is too low, the controller 121 stops the motor 12, mitigating the problem of the intelligent pump 100 running dry and providing protection for the intelligent pump 100. Additionally, a wireless communication module or alarm can be provided to the controller 121. When it is determined that the liquid level in the fertilizer storage container 200 is too low, the information can be reported to the user terminal via the wireless communication module to remind the user to add fertilizer, or the alarm can prompt the user to add fertilizer.

[0091] Therefore, the fertilization system of this embodiment can achieve automated fertilization. It includes a fertilizer storage container 200, a smart pump 100, and a liquid level sensor 300. The smart pump 100 integrates a controller 121, and the liquid level sensor 300 is signal-connected to the controller 121. During operation, the smart pump 100 can operate automatically according to a preset working program, achieving automated control of the fertilization progress. Furthermore, the operation of the smart pump 100 can be controlled by combining the feedback signal from the liquid level sensor 300, exhibiting advantages of high automation and high integration. Clearly, the fertilization system of this solution has a simple structure and low cost. In field applications, users only need to simply connect the fertilizer storage container 200 and the smart pump 100 with pipelines, and connect the smart pump 100 to the fertilization pipeline, offering advantages of simple installation and easy maintenance.

[0092] Optionally, the controller 121 is provided with a wireless communication unit, through which the controller 121 communicates wirelessly with the user terminal.

[0093] The wireless communication unit is a bridge between the controller 121 and the user terminal. It can transmit the data collected by the controller 121 (such as liquid level height, fertilization progress, etc.) to the user terminal in real time, so that the user can remotely monitor the operation status of the fertilization system. At the same time, the user can also send instructions to the controller 121 through the user terminal, such as adjusting the fertilization time and fertilization amount, to achieve remote control.

[0094] The user terminal can be a device with wireless communication capabilities, such as a smartphone, tablet, or computer. Through the user terminal, users can view the operating data of the fertilization system anytime, anywhere, and understand the fertilization progress and liquid level. Furthermore, users can remotely control the fertilization system according to actual needs, such as increasing or decreasing the amount of fertilizer or adjusting the fertilization time.

[0095] Optionally, an external antenna 600 may also be included, which is connected to the wireless communication unit via a first signal line 61.

[0096] Compared to internal antennas, external antennas 600 typically offer higher gain and wider coverage. They are more effective at capturing and transmitting wireless signals, thereby enhancing the stability and reliability of communication between the fertilization system and the user terminal. External antennas 600 can increase the transmission distance of wireless communication, allowing users to monitor and manage the fertilization system from a greater distance, which is particularly important for large farmlands or scenarios requiring remote monitoring. In complex environments (such as areas with strong signal interference), external antennas 600 are better able to handle signal attenuation and interference, providing more stable and clearer communication quality.

[0097] Therefore, the introduction of the external antenna 600 provides a more stable and efficient signal transmission for the wireless communication function of the fertilization system.

[0098] The installation location of the external antenna 600 needs to take into account the signal coverage and communication quality. Generally, the external antenna 600 should be installed at a higher position on the fertilization system to reduce the impact of ground obstacles on signal transmission.

[0099] Optionally, referring to Figure 2, it also includes an antenna bracket 400, on which the external antenna 600 is mounted.

[0100] The antenna bracket 400 provides installation support for the external antenna 600, enabling it to be fixed at a sufficient height, reducing the impact of ground obstacles on signal transmission, and thus achieving better signal transmission and reception.

[0101] In practical applications, the antenna bracket 400 may include a vertical long rod with its bottom end fixed to the ground and its top end extending upward to provide sufficient support height for the external antenna 600; or, the antenna bracket 400 may be directly installed on the top of the fertilizer storage container 200. In this case, the structure of the fertilizer storage container 200 can greatly increase the installation height of the antenna bracket 400, so a smaller antenna bracket 400 structure can be used.

[0102] In an optional embodiment, the external antenna 600 is fixed to the antenna bracket 400 by a hose clamp. The hose clamp is a structure that can be repeatedly tightened and loosened, which facilitates the adjustment of the height and orientation of the external antenna 600 during installation, so that the user can install it in the most suitable position.

[0103] Optionally, the antenna bracket 400 is installed on one side of the fertilizer storage container 200, and a side support rod 41 extends from one side of the antenna bracket 400, with the liquid level sensor 300 installed on the side support rod 41.

[0104] Specifically, the liquid level sensor 300 is installed according to its selected type. For example, if a radar liquid level sensor 300 is used, it needs to be installed on top of the fertilizer storage container 200; if a pneumatic liquid level sensor 300 is used, its main body needs to be installed on top of the fertilizer storage container 200, with one end of the air pipe connected to the main body and the other end extending to the bottom of the fertilizer storage container 200; if a float-type liquid level sensor 300 is used, it also needs to extend from bottom to top inside the fertilizer storage container 200. Therefore, regardless of the type of liquid level sensor 300 used, its top needs to be properly secured. This solution, combined with the structure of the antenna bracket 400, extends a side support rod 41 on one side, which is located on top of the fertilizer storage container 200, providing support and fixation for the liquid level sensor 300.

[0105] Therefore, the antenna bracket 400 of this embodiment not only carries the function of the external antenna 600, but also cleverly combines with the installation of the liquid level sensor 300, realizing the maximization of functional diversification and space utilization, thus meeting the fixing requirements and saving structural costs.

[0106] Preferably, the liquid level sensor 300 establishes a signal connection with the controller 121 via a third signal line 32. The third signal line 32 is fixed to the antenna bracket 400.

[0107] Preferably, the level sensor 300 is a radar level gauge.

[0108] Radar level gauges measure liquid levels by emitting microwave pulses and receiving their echoes. Radar level gauges do not need to be in direct contact with the measured medium, thus avoiding damage to the sensor caused by the characteristics of the medium (such as viscosity, corrosiveness, temperature, etc.). This is especially important for corrosive fertilizers or high-temperature environments that may exist in fertilizer storage containers 200.

[0109] In application, a detection port is provided on the top of the fertilizer storage container 200. Supported by the antenna bracket 400, the liquid level sensor 300 can be aligned with the detection port above the fertilizer storage container 200. It emits microwave pulses into the fertilizer storage container 200 through the detection port to detect the liquid level. In this structure, the liquid level sensor 300 is only supported by the antenna bracket 400 and does not contact the fertilizer storage container 200 at all. Therefore, it can improve the problem of vibration of the fertilizer storage container 200 causing vibration of the liquid level sensor 300 and affecting the accuracy of detection. For example, to accelerate fertilizer volume and improve the uniformity of water and fertilizer, a stirring mechanism 500 can be provided for the fertilizer storage container 200. The operation of the stirring mechanism 500 will cause the fertilizer storage container 200 to vibrate.

[0110] Optionally, the side support rod 41 is connected to a leveling bracket 42, and the liquid level sensor 300 is mounted on the leveling bracket 42 to maintain the stability of the liquid level sensor 300.

[0111] The introduction of the leveling bracket 42 further enhances the stability and detection accuracy of the level sensor 300 (especially the radar level gauge). As a high-precision measuring tool, the stability of the radar level gauge during operation is crucial to ensuring the accuracy of the measurement results. By connecting the leveling bracket 42, the radar level gauge can be effectively kept stable during operation, thereby ensuring its detection accuracy.

[0112] Specifically, the leveling bracket 42 has an adaptive universal adjustment function, which can be adaptively adjusted by the gravity of the liquid level sensor 300 so that the liquid level sensor 300 can always maintain a positive orientation. Even if the antenna bracket 400 tilts or vibrates, it can be compensated by the adjustment of the leveling bracket 42 itself.

[0113] Optionally, the leveling bracket 42 includes a first bracket body 421 and a second bracket body 422. The first bracket body 421 is fixedly connected to the side support rod 41, and the second bracket body 422 is connected to the first bracket body 421 and can rotate relative to the first bracket body 421 about the X direction. The liquid level sensor 300 is connected to the second bracket body 422 and can rotate relative to the second bracket body 422 about the Z direction.

[0114] Specifically, referring to Figure 6, the direction perpendicular to the ground is defined as the Y direction, and the two directions perpendicular to the Y direction are the X direction and the Z direction, which are perpendicular to each other.

[0115] As a fixed part of the leveling bracket 42, the first bracket body 421 is firmly connected to the side support rod 41. Its main function is to provide a stable support foundation and ensure the stability of the entire leveling bracket 42 system. The second bracket body 422 is connected to the first bracket body 421 and can rotate around the X direction. This design allows the second bracket body 422 and the liquid level sensor 300 to adaptively deflect in the X direction. The liquid level sensor 300 is connected to the second bracket body 422 and can rotate around the Z direction. This allows the liquid level sensor 300 to adaptively deflect in the Z direction. When the antenna bracket 400 tilts or vibrates, the leveling bracket 42 can adaptively adjust using the gravity of the liquid level sensor 300, so that the sensing side of the liquid level sensor 300 can always face downwards, achieving the purpose of accurately detecting the liquid level in the fertilizer storage container 200.

[0116] Optionally, referring to Figure 7, the first support body 421 is provided with a first central hole 4211 and a first arc-shaped hole 4212. The hole axis of the first central hole 4211 extends along the X direction, and the first arc-shaped hole 4212 is arranged around the first central hole 4211. The second support body 422 is rotatably connected to the first central hole 4211 by a first rotating pin 4213 and slidably connected to the first arc-shaped hole 4212 by a first guide pin 4214.

[0117] The second support body 422 is provided with a second central hole 4221 and a second arc-shaped hole 4222. The hole axis of the second central hole 4221 extends along the Z direction, and the second arc-shaped hole 4222 is arranged around the second central hole 4221. The liquid level sensor 300 is rotatably connected to the second central hole 4221 through a second rotating pin 4223 and slidably connected to the second arc-shaped hole 4222 through a second guide pin 4224.

[0118] When the antenna support 400 tilts or vibrates, the leveling support 42 can adaptively adjust itself using the gravity of the liquid level sensor 300. Specifically: in the X direction, the second support body 422 can adjust its position by rotating about the first rotating pin 4213 and sliding along the first arc-shaped hole 4212, thereby compensating for tilting or vibration in the X direction. In the Z direction, the liquid level sensor 300 can adjust its orientation by rotating about the second rotating pin 4223 and sliding along the second arc-shaped hole 4222, thereby compensating for tilting or vibration in the Z direction, thus ensuring that it always faces the inside of the fertilizer storage container 200 for measurement.

[0119] This design employs a combination of rotary and guide connections to ensure the smoothness and stability of the second support body 422 during the oscillation process of the level sensor 300. Furthermore, the design of this leveling support 42 is relatively compact, occupying minimal space while maintaining sufficient strength and rigidity.

[0120] Optionally, the liquid level sensor 300 includes a sensor body 31 and a sensor base 33, the sensor body is mounted on the sensor base 33, and the sensor base 33 is rotatably connected to the second support body 422.

[0121] Specifically, the sensor base 33 includes a base frame and an upwardly extending connecting arm connected to one side of the base frame. The sensor body 31 is mounted on the base frame and can transmit and receive electromagnetic waves downward through the center of the base frame. The connecting arm extends upward and connects to the second support body 422.

[0122] The sensor body 31 is the core component of the liquid level sensor 300, responsible for transmitting and receiving microwave signals to measure the liquid level. The sensor base 33 is the bridge connecting the sensor body 31 and the second support body 422. It not only provides stable support but also allows the sensor body 31 to be rotated and adjusted within a certain range. This design enables the liquid level sensor 300 to better adapt to different installation conditions and measurement needs, and has the advantage of more flexible application and installation.

[0123] Optionally, referring to Figure 2, an EC / pH sensor 700 is also included, connected to the pump body 11 to monitor the EC / pH value of the fertilizer, and signal-connected to the controller 121.

[0124] EC (Electrical Conductivity Sensor) refers to electrical conductivity; PH (Potential of Hydrogen) refers to acidity and alkalinity. The EC / PH sensor 700 is a device specifically designed to measure the electrical conductivity and acidity / alkalinity 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.

[0125] The EC / PH sensor 700 is connected to the pump body 11, meaning the sensor is directly inserted into the fertilizer solution, enabling real-time and accurate measurement of its EC and pH values. This design simplifies system complexity and improves measurement accuracy. The EC / PH sensor 700 is signal-connected to the controller 121, meaning the data measured by the EC / PH sensor 700 can be transmitted to the controller 121 in real time for further processing and analysis. Based on the received data, the controller 121 can automatically adjust the parameters of the fertilization system, such as irrigation rate and time, to ensure optimal crop growth conditions.

[0126] In addition, the controller 121 can also upload the acquired data to the user terminal, so that the user terminal can monitor the parameters of the fertilizer solution in real time and make reasonable adjustments in a timely manner. For example, after the fertilizer in the fertilizer storage container 200 has been left to stand for a certain period of time, it is easy to cause precipitation and stratification, which leads to uneven pumping of fertilizer. When the fertilizer precipitates or stratifies, the EC value and pH value of the pumped fertilizer will also change. Therefore, when the user finds that the EC value and pH value of the fertilizer have changed, it can be judged that the fertilizer has precipitated or stratified, and the fertilizer can be stirred in time to make the fertilizer solution evenly mixed.

[0127] Optionally, the pump body 11 includes an inlet port 1121 and an outlet port 1122, and the EC / PH sensor 700 is connected to the inlet port 1121 or the outlet port 1122.

[0128] The inlet port 1121 is the part of the pump body 11 used to receive liquid input. Typically, fertilizer solution or other liquids that need to be pumped enter the pump body 11 through this port. The outlet port 1122 is the part of the pump body 11 used to output liquid. Liquids (such as fertilizer solutions) that have been pressurized by the pump body 11 are delivered to the target location, such as an irrigation system or the roots of crops, through this port.

[0129] By directly connecting the EC / PH sensor 700 to the interface of the pump body 11, the connection distance between the sensor and the pump body 11 can be minimized. This not only simplifies the system structure but also reduces signal loss and interference during transmission. Since the sensor and pump body 11 are in close proximity, signal connection between them becomes more convenient, which can be achieved via wired or wireless means, depending on the system design and requirements. Furthermore, directly connecting the EC / PH sensor 700 to the interface of the pump body 11 greatly improves the convenience of on-site installation. Installers do not need to find additional installation locations near the pump body 11 or perform complex wiring work, thus saving time and costs.

[0130] Optionally, referring to Figures 23-25, the EC / PH sensor 700 includes a housing 710, a first detection probe 720, a second detection probe 730, and a control board 740, wherein...

[0131] The first detection probe 720 is built into the housing 710 and partially exposed on the surface of the housing 710, and is used to detect the conductivity of the liquid;

[0132] The second detection probe 730 is built into the housing 710 and partially exposed on the surface of the housing 710, and is used to detect the acidity or alkalinity of the liquid;

[0133] The control board 740 is built into the housing 710 and is electrically connected to the first detection probe 720 and the second detection probe 730 respectively.

[0134] By setting the first detection probe 720 and the second detection probe 730 on the EC / PH sensor 700, the conductivity and pH of the liquid can be detected simultaneously; the housing 110 can be quickly installed on the corresponding component through the connecting part 713 on the housing 710, so as to realize the installation and fixation of the EC / PH sensor on the corresponding component.

[0135] Optionally, the end face of the first end of the housing 710 is provided with a first probe hole and a second probe hole, a portion of the first detection probe 720 protrudes through the first probe hole and is exposed on the surface of the housing, and a portion of the second detection probe 730 protrudes through the second probe hole and is exposed on the surface of the housing.

[0136] With the above structural design, the main body of the first detection probe 720 and the main body of the second detection probe 730 can be well isolated and protected by being built into the housing 710, while also having a portion exposed through the corresponding first probe hole and second probe hole to contact the external liquid for corresponding conductivity and pH detection.

[0137] Optionally, a protective structure 712 is provided around the end face of the first end of the housing 710. Parts of the first detection probe 720 and the second detection probe 730 both protrude from the end face of the first end of the housing 710 and are both within the protection range of the protective structure 712.

[0138] By setting up the protective structure 712, the exposed parts of the first detection probe 720 and the second detection probe 730 are protected without affecting their contact with external liquids.

[0139] Optionally, the protective structure 712 includes a plurality of protective protrusions, which are spaced apart along the periphery of the end face of the first end of the housing 710 to surround and protect the portion of the first detection probe 720 and the portion of the second detection probe 730 that protrude from the end face of the first end of the housing 710.

[0140] By spaced out multiple protective protrusions, external liquid can enter the protective space through the top opening formed by the multiple protective protrusions, allowing it to interact with the first detection probe 720 and the second detection probe 730 within the protective space. Alternatively, it can enter the protective space through the gaps between pairs of protective protrusions, allowing it to interact with the first detection probe 720 and the second detection probe 730 within the protective space. This provides a certain degree of protection for the exposed portions of the first detection probe 720 and the second detection probe 730 without affecting their contact with the external liquid.

[0141] Optionally, referring to Figure 4, the pump body 11 has a three-way pipe 71 at its inlet port 1121 or outlet port 1122. The first port of the three-way pipe 71 is connected to the inlet port 1121 or the outlet port 1122, and the second port of the three-way pipe 71 is connected to the inlet pipeline or the outlet pipeline. The three-way pipe 71 has a sensing port 711, and the EC / pH sensor 700 is installed at the sensing port 711 to sense the EC / pH value of the fertilizer flowing through the three-way pipe 71.

[0142] One opening of the three-way connector 71 connects to either the inlet port 1121 or the outlet port 1122 of the pump body 11, ensuring smooth flow of the fertilizer solution. The other opening serves as an interface for connecting the inlet or outlet pipe, continuing the delivery of the fertilizer solution. The third opening, the sensing interface 711, is used to install the EC / pH sensor 700 to measure the EC and pH values ​​of the flowing fertilizer solution. Since the EC / pH sensor 700 is connected to the pump body 11 via the three-way connector 71, it can be easily disassembled and replaced, which helps reduce maintenance costs and improve system maintainability.

[0143] Optionally, the EC / PH sensor 700 is connected to a second signal line 72, which is plugged into the controller 121.

[0144] The second signal line 72 is used to transmit the EC and pH value data measured by the EC / PH sensor 700 to the controller 121 in real time. The wired connection ensures accurate and rapid data transmission. The plug-in connection significantly simplifies system wiring, reducing system complexity and cost while improving cleanliness and aesthetics. The plug-in design also makes the connection between the EC / PH sensor 700 and the controller 121 easy to maintain and replace. When the EC / PH sensor 700 malfunctions or needs upgrading, simply disconnect the plug and replace it with a new EC / PH sensor 700.

[0145] Optionally, referring to FIG1, the system also includes a stirring mechanism 500, which extends into the fertilizer storage container 200 for stirring the fertilizer.

[0146] Preferably, the stirring mechanism 500 is signal-connected to the controller 121. The main function of the stirring mechanism 500 is to ensure that the fertilizer solution in the fertilizer storage container 200 is kept uniformly mixed and to avoid precipitation, stratification, and other phenomena. Through stirring, the various components in the fertilizer solution can be fully mixed. After the fertilizer in the fertilizer storage container 200 has been left to stand for a certain period of time, precipitation and stratification are likely to occur, leading to uneven pumping of fertilizer. When precipitation and stratification occur, the EC value and pH value of the pumped fertilizer will also change. Therefore, when the possibility of precipitation and stratification is detected, the controller 121 can send a stirring start command to the stirring mechanism 500 to realize timely and automatic stirring of the fertilizer solution uniformly.

[0147] Therefore, the stirring mechanism 500 in this embodiment is designed to connect with the controller 121 via signal, which effectively solves the problem of uneven pumping of fertilizer caused by fertilizer sedimentation and stratification in the fertilizer storage container 200, and has the advantage of high automation.

[0148] In an optional embodiment, the stirring mechanism 500 includes a stirring driver and a stirrer. The stirring driver is fixed to the top of the fertilizer storage container 200, and the top of the stirrer is connected to the stirring driver and extends downward into the interior of the fertilizer storage container 200. A support structure for supporting the stirring mechanism 500 is also provided on the outside of the fertilizer storage container 200.

[0149] Optionally, referring to Figures 8-21, the pump body 11 includes a pump casing 112 and a pushing mechanism 111 installed within the pump casing 112. The pushing mechanism 111 is used to push fertilizer to flow. The motor 12 includes a motor housing 124 and a motor body 122. The motor body 122 and the controller 121 are installed within the motor housing 124. The motor housing 124 is fixedly connected to the pump casing 112. The motor body 122 includes a motor shaft 1221. One end of the motor shaft 1221 is connected to the pushing mechanism 111, and the other end is connected to a fan blade 123. The rotation of the fan blade 123 drives the airflow to exchange between the inside and outside of the motor housing 124, thereby promoting heat dissipation of the motor body 122 and the controller 121.

[0150] The pump housing 112 provides a pump chamber and is provided with at least one inlet port 1121 and at least one outlet port 1122. A pushing mechanism 111 installed inside the pump housing 112 is driven by a motor 12. When the pushing mechanism 111 is in operation, it uses suction and compression to draw fluid from the inlet port 1121 and pushes the drawn fluid to the outlet port 1122 for extrusion, thereby achieving the function of fluid delivery. The pushing mechanism 111 can be appropriately selected according to the actual application scenario; it can be, but is not limited to, an impeller, blade, gear, etc. The shape of the pump chamber formed inside the pump housing 112 also needs to be set according to the specific form of the pushing mechanism 111.

[0151] The motor 12 integrates a controller 121, which is electrically connected to the motor body 122. The controller 121 can control the power supply to the motor body 122, and realize the functions of controlling the output speed and direction of the motor body 122, so as to achieve the purpose of automatically controlling the operation of the intelligent pump 100.

[0152] The motor body 122 of the motor 12 includes a motor shaft 1221. The two ends of the motor shaft 1221 are respectively connected to the push mechanism 111 and the fan blade 123. When the motor shaft 1221 is running, it will synchronously drive the push mechanism 111 and the fan blade 123 to rotate. The rotation of the push mechanism 111 can drive the circulation, while the rotation of the fan blade 123 can drive the airflow.

[0153] In the traditional motor 12 structure, the coils generate a large amount of heat during operation, and the control board also generates a large amount of heat. To avoid excessive heat accumulation and overheating, the traditional motor 12 requires separate installation of the motor body 122 and the control board, each requiring its own independent protective housing. In this design, the motor body 122 and the controller 121 share a single motor housing 124. The housing 124 provides both mounting support and protection for both the motor body 122 and the controller 121. Compared to the traditional separate installation, this integrated installation method is more compact and cost-effective. It should be noted that this integration of the motor body 122 and controller 121 into the motor housing 124 is based on the reliable heat dissipation structure of this design. Specifically, the fan blades 123 drive airflow exchange within and outside the motor housing 124, rapidly dissipating the heat generated by the motor body 122 and the controller 121, thus mitigating the problem of overheating caused by heat accumulation within the motor housing 124.

[0154] It is understandable that in order to achieve airflow exchange between the inside and outside of the motor housing 124, appropriate ventilation holes need to be provided on the motor housing 124 to allow air to enter and exit.

[0155] The intelligent pump 100 based on this embodiment uses a motor 12 to drive the operation of the pushing mechanism 111 in the pump body 11 to achieve the driving function. In the structure of the motor 12 in this solution, the motor body 122 and the controller 121 are set together in the motor housing 124, and a fan blade 123 is connected to the end of the motor shaft 1221 away from the pump body 11. During the operation of the motor body 122, in addition to driving the pushing mechanism 111 to operate, it also drives the fan blade 123 to operate. The operation of the fan blade 123 blows the air inside the motor housing 124 out, and at the same time, fresh air from the outside is replenished into the motor housing 124, realizing air circulation inside and outside the motor housing 124. During the air flow, the heat generated by the motor body 122 and the controller 121 during operation is carried away, thereby achieving effective heat dissipation of the motor body 122 and the controller 121.

[0156] Therefore, by integrating the motor body 122 and the controller 121 together into a single motor housing 124 in this embodiment, it has advantages such as compact structure, good safety, and low cost. At the same time, by using the motor 12, the end of the motor shaft 1221 is connected to the fan blade 123. When the motor shaft 1221 rotates, it drives the fan blade 123 to rotate, thereby driving the internal and external airflow exchange. This effectively promotes the heat dissipation of the motor body 122 and the controller 121, thereby reducing the operating temperature of the motor body 122 and the controller 121, ensuring the stability of operation, and improving the service life.

[0157] Optionally, referring to FIG15, a motor cavity 1243 is formed inside the motor housing 124, and the motor body 122, the controller 121, and the fan blade 123 are disposed in the motor cavity 1243. An air outlet 12421 is connected to the side of the motor cavity 1243 facing away from the pump housing 112. An air inlet cavity 1244 is formed between the motor housing 124 and the pump housing 112, and a first air inlet 12411 is connected to the side of the air inlet cavity 1244. The motor cavity 1243 is connected to the air inlet cavity 1244.

[0158] Optionally, the internal structure design of the motor housing 124 has been further optimized to ensure more efficient and direct heat dissipation.

[0159] Specifically, the motor housing 124 has a motor cavity 1243 inside, which houses the motor body 122, controller 121, and fan blades 123. This motor cavity 1243 not only protects the internal components but also provides a relatively enclosed environment for easy thermal management. Notably, an air outlet 12421 is provided on the side of the motor cavity 1243 facing away from the pump housing 112, allowing heated air to be effectively dissipated and smoothly discharged from the motor housing 124.

[0160] Importantly, an air inlet chamber 1244 is cleverly formed between the motor housing 124 and the pump housing 112. This air inlet chamber 1244 is connected to the outside through the first air inlet 12411 on the side, providing a continuous supply of cold air to the motor cavity 1243. A connecting channel is provided between the motor cavity 1243 and the air inlet chamber 1244, which allows cold air to be blown directly into the motor cavity 1243 along the axial direction and accurately blown towards the motor body 122. This design ensures that the air can be directly injected into the coil inside the motor body 122. Since the coil is the main part of the motor 12 that generates heat, this direct air blowing method can remove the heat from the coil more quickly and effectively.

[0161] Therefore, this embodiment allows air to enter the air inlet cavity 1244 and then be blown into the motor cavity 1243 in an axial direction, and then blown axially toward the motor body 122. This direction allows the air to be poured into the coil of the motor body 122, which can more quickly and directly remove the heat from the coil. Then it is blown out from the air outlet 12421 on the side away from the air inlet cavity 1244, thus achieving efficient and direct heat dissipation.

[0162] In addition, the air inlet cavity 1244 provided between the motor housing 124 and the pump housing 112 can also provide sufficient space for the connection between the motor shaft 1221 and the pushing mechanism 111, ensuring the reliability of the connection between the motor shaft 1221 and the pushing mechanism 111.

[0163] Optionally, referring to Figure 18, the motor cavity 1243 and the air inlet cavity 1244 are separated by a motor base plate 12413, and the motor base plate 12413 is provided with a first air passage 12412 connecting the motor cavity 1243 and the air inlet cavity 1244.

[0164] A first air passage 12412 is provided on the motor base plate 12413 to provide ventilation, so that the air in the air inlet chamber 1244 can smoothly enter the motor chamber 1243.

[0165] Optionally, the motor body 122 includes a stator assembly 1222 and a rotor assembly 1223. The rotor assembly 1223 includes coils. The stator assembly 1222 is fixed to the motor base plate 12413. The rotor assembly 1223 is sleeved on the outer periphery of the stator assembly 1222 and is spaced apart from the motor base plate 12413. The first air passage 12412 is aligned with the rotor assembly 1223.

[0166] The motor body 122 consists of a stator assembly 1222, a rotor assembly 1223, and a motor shaft 1221. The stator assembly 1222 is firmly fixed to the motor base plate 12413, while the rotor assembly 1223 is fitted around the outer periphery of the stator assembly 1222. The motor shaft 1221 is fixedly connected to the rotor assembly 1223. When energized, the rotor assembly 1223 rotates relative to the stator assembly 1222, causing the motor shaft 1221 to rotate synchronously. In this design, the motor base plate 12413 is carefully provided with a first air passage hole 12412. These holes are precisely aligned with the rotor assembly 1223. Since the coils in the rotor assembly 1223 are the main heat-generating parts of the motor 12, this alignment design ensures that the cool air entering from the air inlet cavity 1244 can be directly blown onto the coils, thereby more effectively removing heat.

[0167] In specific implementation, the motor base plate 12413 needs to be provided with a shaft hole that allows the motor shaft 1221 to pass through, so that the motor shaft 1221 can extend into the air inlet cavity 1244 to connect with the push mechanism 111.

[0168] Optionally, referring to Figure 17, the stator assembly 1222 is connected to a reinforcing base plate 1224 on the side near the motor base plate 12413. The reinforcing base plate 1224 is fixed to the motor base plate 12413, and the reinforcing base plate 1224 is provided with a second air passage corresponding to the first air passage 12412.

[0169] A reinforcing base plate 1224 is added to the side of the stator assembly 1222 near the motor base plate 12413. This design not only enhances the structural strength of the stator assembly 1222 but also facilitates its assembly with the motor base plate 12413. Specifically, the reinforcing base plate 1224 can provide a larger connection area, and its cross-sectional area can be set to be larger than that of the stator assembly 1222, thus making it easier to securely and reliably fix the reinforcing base plate 1224 to the motor base plate 12413, such as by using multiple bolts for fastening. The connection between the reinforcing base plate 1224 and the stator assembly 1222 can be achieved by welding or bolting, thus improving the structural strength of the stator assembly 1222 installation. During assembly, the stator assembly 1222 can be fixedly connected to the reinforcing base plate 1224 first, and then the reinforcing base plate 1224 can be fixed as a whole to the motor base plate 12413. This method not only improves assembly efficiency, but also enhances the reliability of the connection between the stator assembly 1222 and the motor base plate 12413. In addition, this method also facilitates the disassembly and assembly of the motor body 122 during maintenance. That is, the motor body 122 can be disassembled simply by removing the reinforcing base plate 1224.

[0170] The reinforcing base plate 1224 of this design is provided with a second air passage corresponding to the first air passage 12412 on the motor base plate 12413. Thus, when cold air enters the motor cavity 1243 from the air inlet cavity 1244 through the first air passage 12412, it can continue to pass through the second air passage on the reinforcing base plate 1224, further ensuring effective cooling of the stator assembly 1222 and the rotor assembly 1223.

[0171] Optionally, the motor base plate 12413 is provided with a support rib mesh 12416 on the side near the motor cavity 1243, and the reinforcing base plate 1224 abuts against the support rib mesh 12416.

[0172] The support rib mesh 12416 on the motor base plate 12413 effectively improves the strength of the motor base plate 12413. This structure also reduces material consumption and lightens the weight of the motor base plate 12413. The support rib mesh 12416 consists of a series of crisscrossing ribs that form a dense grid structure on the motor base plate 12413. When the reinforcing base plate 1224 is fixed to the motor base plate 12413, it tightly abuts against these support rib meshes 12416, ensuring a stable connection between the reinforcing base plate 1224 and the motor base plate 12413.

[0173] Optionally, referring to Figures 11 and 16, a second air inlet 12422 is provided on the motor housing 124 corresponding to the installation position of the controller 121.

[0174] The second air inlet 12422 provides an additional heat dissipation channel for the controller 121. Since the controller 121 also generates a certain amount of heat during the operation of the motor 12, the cool air introduced through the second air inlet 12422 can be directly blown onto the controller 121 to help dissipate heat. In this way, the controller 121 can maintain a relatively low operating temperature, thereby improving its working efficiency and stability.

[0175] Optionally, referring to Figure 22, the controller 121 is provided with a plug-in socket 1211, and the second air inlet 12422 is correspondingly provided with the plug-in socket 1211 to allow an external connector to be plugged into the plug-in socket 1211 through the second air inlet 12422.

[0176] The design of the connector 1211 facilitates current and signal transmission between the controller 121 and external devices. Specifically, external power and signal cable connectors can be plugged into the connector 1211 to supply power to the controller 121 and the motor body 122, and to enable signal transmission between the controller 121 and external devices. The controller 121 can exchange data and communicate with other electronic devices or systems, thereby realizing remote monitoring and control of the entire motor system. This design not only improves the system's intelligence but also provides users with a more convenient and flexible operating method.

[0177] In addition, this solution combines the second air inlet 12422 on the motor housing 124 with a window that allows external connectors to pass through, which satisfies the need to blow air directly onto the controller 121 and to insert external connectors, while reducing the number of holes opened on the motor housing 124. This helps to improve the reliability of the motor housing 124 and enhance the protection of the internal components by the motor housing 124.

[0178] Optionally, referring to Figures 19 and 20, the controller 121 is equipped with a control protective cover 1212, and the control protective cover 1212 is provided with a plug-in clearance hole corresponding to the plug-in socket 1211.

[0179] The introduction of the control protective cover 1212 also improves the overall safety and reliability of the controller 121. It prevents dust, moisture, and other debris from entering the controller 121, thereby avoiding malfunctions or damage to the controller 121 caused by environmental factors. The insertion clearance holes provided on the control protective cover 1212 allow external connectors to be smoothly inserted into the connector 1211 when needed, without being obstructed by the control protective cover 1212. This ensures both ease of connection and that the controller 121 can communicate and exchange data normally with external devices while being protected.

[0180] In practice, sealing measures are taken around the connector 1211 and between it and the control protective cover 1212, such as installing sponge pads or rubber pads, to improve dust and water resistance. Sufficient clearance needs to be maintained between the control protective cover 1212 and the edge of the second air inlet 12422 to provide adequate airflow.

[0181] Optionally, the control protective cover 1212 is provided with heat dissipation fins 12121.

[0182] Specifically, when the controller 121 is working, the heat generated is transferred to the control protective cover 1212 through heat conduction. The heat dissipation fins 12121 can quickly disperse this heat to a larger surface area and carry it away through air convection.

[0183] Optionally, referring to Figures 16, 17 and 19, a support frame 12415 is provided on the motor base plate 12413, the periphery of the control protective cover 1212 is sealed to the support frame 12415, and the controller 121 is installed on the side of the control protective cover 1212 facing the motor base plate 12413.

[0184] The support frame 12415 is securely mounted on the motor base plate 12413, forming a recess of a certain depth. This recess perfectly accommodates any protruding electronic components that may be present on the controller 121, thus preventing damage caused by collisions or compression of components during installation. The periphery of the control protective cover 1212 and the support frame 12415 are tightly fitted together through a sealing connection (such as using sealing strips, sealing rings, etc.), effectively preventing dust, moisture, and other debris from entering the controller 121. This sealing design not only improves the protection level of the controller 121 but also ensures its stable operation in harsh environments.

[0185] In summary, the design of the optional support frame 12415 and control shield 1212 together provides the controller 121 with a robust, safe, and sealed installation environment, enhancing the reliability and durability of the controller 121.

[0186] In addition, the controller 121 is mounted on the control protective cover 1212, which facilitates the direct transfer of heat from the controller 121 to the control protective cover 1212, and the heat is carried out and dissipated directly by the control protective cover 1212. This structure is beneficial for optimizing the heat dissipation of the controller 121.

[0187] Optionally, the controller 121 is provided with a main control unit and an electronic control unit.

[0188] The main control unit is the core part of the controller 121. It is responsible for processing various signals from the system inside and outside the application, and making decisions and controlling according to preset algorithms and logic. The main control unit usually has high computing power and stability, which can ensure that the motor 12 system can operate stably under various working conditions.

[0189] The electronic speed controller (ESC) is the part of the controller 121 that is directly related to the motor 12. It is responsible for receiving instructions from the main control unit and controlling parameters such as the speed, direction and power of the motor 12. The ESC usually has precise current and voltage control capabilities, which can achieve precise control of the motor 12, thereby improving the efficiency and performance of the motor 12 system.

[0190] By integrating the main control unit and the electronic speed control unit onto the controller 121, comprehensive control and optimization of the motor 12 system can be achieved. This design not only improves the system's integration and reliability but also makes the controller 121 more comprehensive and powerful.

[0191] Optionally, referring to Figure 10, the motor housing 124 includes a motor base 1241 and a motor cover 1242. The motor base 1241 is fixedly connected to the pump housing 112. The motor cover 1242 covers the side of the motor base 1241 facing away from the pump housing 112. The air inlet cavity 1244 is formed between the motor base 1241 and the pump housing 112. The motor cavity 1243 is formed between the motor cover 1242 and the motor base 1241.

[0192] The motor cover 1242 covers the side of the motor base 1241 facing away from the pump housing 112, forming a relatively enclosed space, namely the motor cavity 1243. The motor cavity 1243 is the main working area of ​​the motor 12, which houses key components such as the stator assembly 1222, rotor assembly 1223, and controller 121 of the motor 12. The design of the motor cover 1242 not only protects these components from interference and damage from the external environment, but also provides them with a relatively quiet and stable working environment.

[0193] Meanwhile, an air inlet chamber 1244 is formed between the motor housing 1241 and the pump housing 112. This air inlet chamber 1244 is designed to introduce cold air to help the motor 12 and the pump dissipate heat. The cold air can enter the air inlet chamber 1244 through the air inlet on the motor housing 124, then flow through the heat dissipation area of ​​the motor 12, and finally be discharged through the air outlet 12421.

[0194] Optionally, the motor base housing 1241 includes a motor base plate 12413 and a base plate enclosure 12414 surrounding the periphery of the motor base plate 12413. The base plate enclosure 12414 extends toward the side where the pump housing 112 is located and connects to the pump housing 112. The first air inlet 12411 is disposed on the base plate enclosure 12414 and / or the air outlet 12421 is disposed on the motor cover 1242.

[0195] The motor base plate 12413 is the planar portion of the motor housing 1241, providing an installation platform for the motor body 122 and controller 121. The base plate enclosure 12414 is a vertical wall surrounding the motor base plate 12413, extending towards the pump housing 112 and tightly joined to it via a fixed connection (such as bolting or welding). This design not only enhances the connection strength between the motor housing 1241 and the pump housing 112 but also forms a relatively enclosed space (i.e., the air inlet chamber 1244) and provides protection for the connection structure between the motor shaft 1221 and the pump body 11.

[0196] Optionally, it also includes an air inlet cover 131, which is installed on the side of the motor housing 124 corresponding to the first air inlet 12411. An air distribution gap 1312 is formed between the air inlet cover 131 and the motor housing 124, and the air inlet cover 131 is provided with a third air inlet 1311, which is offset from the first air inlet 12411.

[0197] Specifically, during operation, external air enters through the third air inlet 1311, passes through the air distribution interval 1312, and then enters the air intake cavity 1244 through the first air inlet 12411. This structure can ensure normal and stable airflow and can also block sand and dust entering the third air inlet 1311 by using the staggered structure. That is, after sand and dust enter the air distribution interval 1312 through the third air inlet 1311, they will hit the motor housing 124, preventing sand and dust from entering the air intake cavity 1244 again through the first air inlet 12411.

[0198] Optionally, it also includes a pump base 13, on which the pump body 11 and the motor 12 are integrally mounted.

[0199] The introduction of the pump base 13 provides additional stability and convenience for the installation of the pump body 11 and the motor 12. The pump base 13 is a specially designed structural component used to support and fix the pump body 11 and the motor 12, ensuring that they can remain stable and reliable during operation.

[0200] Optionally, referring to Figures 10 and 13, the first air inlet 12411 is disposed on the bottom side of the motor housing 124, and the air inlet cover 131 is disposed on the top side of the pump base 13.

[0201] Integrating the air inlet cover 131 into the structure of the pump base 13 achieves the function of preventing dust from entering the air while simplifying the overall structure of the equipment. Importantly, the first air inlet 12411 is located on the bottom side of the motor housing 124, and the air inlet cover 131 located on the pump base 13 is located below the motor housing 124. The air intake direction is from bottom to top. When air enters through the third air inlet 1311, the sand and dust it carries will impact the motor housing 124 upwards. Then, the sand and dust will fall downwards under the action of their own gravity and fall out from the third air inlet 1311 in the opposite direction. That is, this structure can achieve the effect of automatically discharging sand and dust.

[0202] 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 disclosure. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0203] 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 this disclosure. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0204] 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.

[0205] The technical principles of this disclosure have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this disclosure and should not be construed as limiting the scope of protection of this disclosure in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this disclosure without inventive effort, and these embodiments will all fall within the scope of protection of this disclosure. Industrial applicability

[0206] The fertilization system disclosed herein enables automated fertilization. It includes a fertilizer storage container, an intelligent pump, and a liquid level sensor. The intelligent pump integrates a controller, and the liquid level sensor is connected to the controller. During operation, the intelligent pump can operate automatically according to a preset program, achieving automated control of the fertilization progress. Furthermore, the operation of the intelligent pump can be controlled based on the feedback signal from the liquid level sensor, exhibiting advantages of high automation and high integration. Clearly, the fertilization system of this solution has a simple structure and low cost.

Claims

1. A fertilizing system, characterized in that, include: The intelligent pump (100) includes a pump body (11), a motor (12) and a controller (121). The controller (121) is electrically connected to the motor (12), and the motor (12) is driven to the pump body (11). The pump body (11) is connected to the fertilizer outlet of the fertilizer storage container (200). A liquid level sensor (300) is installed in the fertilizer storage container (200) to monitor the liquid level height inside the fertilizer storage container (200) and is signal-connected to the controller (121).

2. The fertilizing system according to claim 1, characterized in that, The controller (121) is equipped with a wireless communication unit, and the controller (121) communicates wirelessly with the user terminal through the wireless communication unit.

3. The fertilizing system according to claim 2, characterized in that, It also includes an external antenna (600), which is signal-connected to the wireless communication unit via a first signal line (61).

4. The fertilising system of claim 3, characterised in that, It also includes an antenna bracket (400), on which the external antenna (600) is mounted.

5. The fertilising system of claim 4, wherein, The antenna bracket (400) is installed on one side of the fertilizer storage container (200), and a side support rod (41) extends from one side of the antenna bracket (400). The liquid level sensor (300) is installed on the side support rod (41).

6. The fertilising system of claim 5, wherein, The side support rod (41) is connected to a leveling bracket (42), and the liquid level sensor (300) is installed on the leveling bracket (42). The leveling bracket (42) is used to maintain the stability of the liquid level sensor (300).

7. The fertilising system as claimed in claim 6, characterised in that, The leveling bracket (42) includes a first bracket body (421) and a second bracket body (422). The first bracket body (421) is fixedly connected to the side support rod (41), and the second bracket body (422) is connected to the first bracket body (421) and can rotate relative to the first bracket body (421) in the X direction. The liquid level sensor (300) is connected to the second bracket body (422) and can rotate relative to the second bracket body (422) in the Z direction.

8. The fertilising system as claimed in claim 7, characterised in that, The first support body (421) is provided with a first central hole (4211) and a first arc-shaped hole (4212). The hole axis of the first central hole (4211) extends along the X direction. The first arc-shaped hole (4212) is arranged around the first central hole (4211). The second support body (422) is rotatably connected to the first central hole (4211) through a first rotating pin (4213) and slidably connected to the first arc-shaped hole (4212) through a first guide pin (4214). The second support body (422) is provided with a second central hole (4221) and a second arc-shaped hole (4222). The hole axis of the second central hole (4221) extends along the Z direction. The second arc-shaped hole (4222) is arranged around the second central hole (4221). The liquid level sensor (300) is rotatably connected to the second central hole (4221) through a second rotating pin (4223) and slidably connected to the second arc-shaped hole (4222) through a second guide pin (4224).

9. The fertilising system as claimed in claim 8, characterised in that, The liquid level sensor (300) includes a sensor body (31) and a sensor base (33). The sensor body (31) is mounted on the sensor base (33), and the sensor base (33) is rotatably connected to the second support body (422).

10. The fertilising system according to any one of claims 1-9, characterised in that, It also includes an EC / PH sensor (700), which is connected to the pump body (11) to monitor the EC / PH value of the fertilizer and is signal-connected to the controller (121).

11. The fertilizing system according to claim 10, characterized in that, The pump body (11) includes an inlet port (1121) and an outlet port (1122), and the EC / PH sensor (700) is connected to the inlet port (1121) or the outlet port (1122).

12. The fertilizing system according to claim 11, characterized in that, The pump body (11) has a three-way pipe (71) at its inlet port (1121) or outlet port (1122). The first port of the three-way pipe (71) is connected to the inlet port (1121) or the outlet port (1122), and the second port of the three-way pipe (71) is connected to the inlet pipeline or the outlet pipeline. The three-way pipe (71) has a sensing port (711), and the EC / PH sensor (700) is installed at the sensing port (711) to sense the EC / PH value of the fertilizer flowing through the three-way pipe (71).

13. The fertilizing system according to claim 12, characterized in that The EC / PH sensor (700) is connected to a second signal line (72), which is plugged into the controller (121).

14. The fertilizing system of claim 10, wherein, It also includes a stirring mechanism (500) that extends into the fertilizer storage container (200) for stirring the fertilizer.

15. The fertilizing system according to any one of claims 1-14, characterized in that, The pump body (11) includes a pump casing (112) and a pushing mechanism (111) installed in the pump casing (112), the pushing mechanism (111) being used to push fertilizer to flow; the motor (12) includes a motor housing (124) and a motor body (122), the motor body (122) and the controller (121) being installed in the motor housing (124), the motor housing (124) being fixedly connected to the pump casing (112), the motor body (122) including a motor shaft (1221), one end of the motor shaft (1221) being connected to the pushing mechanism (111), and the other end being connected to a fan blade (123); the rotation of the fan blade (123) drives the airflow to exchange inside and outside the motor housing (124) to promote the heat dissipation of the motor body (122) and the controller (121).

16. The fertilizing system according to claim 15, characterized in that A motor cavity (1243) is formed inside the motor housing (124). The motor body (122), the controller (121), and the fan blade (123) are disposed in the motor cavity (1243). An air outlet (12421) is connected to the side of the motor cavity (1243) facing away from the pump housing (112). An air inlet cavity (1244) is formed between the motor housing (124) and the pump housing (112). A first air inlet (12411) is connected to the side of the air inlet cavity (1244), and the motor cavity (1243) is connected to the air inlet cavity (1244).

17. The fertilizing system according to claim 16, characterized in that The motor cavity (1243) and the air inlet cavity (1244) are separated by a motor base plate (12413), and the motor base plate (12413) is provided with a first air passage (12412) connecting the motor cavity (1243) and the air inlet cavity (1244).

18. The fertilizing system according to claim 17, characterized in that The motor body (122) includes a stator assembly (1222) and a rotor assembly (1223). The rotor assembly (1223) includes coils. The stator assembly (1222) is fixed to the motor base plate (12413). The rotor assembly (1223) is sleeved on the outer periphery of the stator assembly (1222) and spaced apart from the motor base plate (12413). The first air passage (12412) is aligned with the rotor assembly (1223).

19. The fertilising system as claimed in claim 18, characterised in that, The stator assembly (1222) is connected to a reinforcing base plate (1224) on the side near the motor base plate (12413). The reinforcing base plate (1224) is fixed to the motor base plate (12413), and the reinforcing base plate (1224) is provided with a second air passage corresponding to the first air passage (12412).

20. The fertilizing system according to claim 19, characterized in that The motor base plate (12413) is provided with a support rib mesh (12416) on the side near the motor cavity (1243), and the reinforcing base plate (1224) abuts against the support rib mesh (12416).

21. The fertilizer application system of claim 17, wherein, A second air inlet (12422) is provided on the motor housing (124) corresponding to the installation position of the controller (121).

22. The fertilizing system according to claim 21, characterized in that The controller (121) is provided with a plug-in socket (1211), and the second air inlet (12422) is correspondingly provided with the plug-in socket (1211) to allow an external connector to be plugged into the plug-in socket (1211) through the second air inlet (12422).

23. The fertilising system of claim 22, wherein, The controller (121) is equipped with a control protection cover (1212), and the control protection cover (1212) is provided with a plug-in clearance hole corresponding to the plug-in socket (1211).

24. The fertilising system of claim 23, wherein, The control protective cover (1212) is provided with heat dissipation fins (12121).

25. The fertilising system of claim 24, wherein, The motor base plate (12413) is provided with a support frame (12415), the periphery of the control protective cover (1212) is sealed to the support frame (12415), and the controller (121) is installed on the side of the control protective cover (1212) facing the motor base plate (12413).

26. The fertilizing system according to any one of claims 1-25, characterized in that, The controller (121) is equipped with a main control unit and an electronic control unit.

27. The fertilizer application system of claim 16, wherein, The motor housing (124) includes a motor base shell (1241) and a motor cover (1242). The motor base shell (1241) is fixedly connected to the pump housing (112). The motor cover (1242) covers the side of the motor base shell (1241) facing away from the pump housing (112). The air inlet cavity (1244) is formed between the motor base shell (1241) and the pump housing (112). The motor cavity (1243) is formed between the motor cover (1242) and the motor base shell (1241).

28. The fertilising system as claimed in claim 27, characterised in that, The motor base shell (1241) includes a motor base plate (12413) and a base plate enclosure (12414) surrounding the periphery of the motor base plate (12413). The base plate enclosure (12414) extends toward the side where the pump housing (112) is located and connects to the pump housing (112). The first air inlet (12411) is provided on the base plate enclosure (12414). And / or, the air outlet (12421) is located on the motor cover (1242).

29. The fertilizer application system of claim 16, wherein, It also includes an air inlet cover (131), which is installed on the side of the motor housing (124) corresponding to the first air inlet (12411). An air distribution gap (1312) is formed between the air inlet cover (131) and the motor housing (124), and a third air inlet (1311) is provided on the air inlet cover (131), which is offset from the first air inlet (12411).

30. The fertilising system as claimed in claim 29, characterised in that, It also includes a pump base (13), on which the pump body (11) and the motor (12) are integrally mounted.

31. The fertilising system as claimed in claim 30, characterised in that, The first air inlet (12411) is located on the bottom side of the motor housing (124), and the air inlet cover (131) is located on the top side of the pump base (13).

32. The fertilizing system according to any of claims 10-14, characterized in that The EC / PH sensor (700) includes a housing (710), a first detection probe (720), a second detection probe (730), and a control board (740), wherein, The first detection probe (720) is built into the housing (710) and partially exposed on the surface of the housing (710) for detecting the conductivity of the liquid; The second detection probe (730) is built into the housing (710) and partially exposed on the surface of the housing (710) for detecting the acidity or alkalinity of the liquid; The control board (740) is built into the housing (710) and is electrically connected to the first detection probe (720) and the second detection probe (730) respectively.

33. The fertilising system of claim 32, wherein, The first end face of the housing (710) is provided with a first probe hole and a second probe hole respectively. A portion of the first detection probe (720) extends through the first probe hole and is exposed on the surface of the housing (710). A portion of the second detection probe (730) extends through the second probe hole and is exposed on the surface of the housing (710).

34. The fertilizing system of claim 32, wherein, A protective structure (712) is provided around the end face of the first end of the housing (710). Parts of the first detection probe (720) and the second detection probe (730) protrude from the end face of the first end of the housing (710) and are both within the protection range of the protective structure (712).

35. The fertilizing system of claim 34, wherein, The protection structure (712) comprises a plurality of protection protrusions, which are arranged along the end face periphery of the first end of the shell (710) to surround and protect the part of the first detection probe (720) and the part of the second detection probe (730) that protrude out of the end face of the first end of the shell (710).