A one-inlet multi-outlet intelligent irrigation electric valve

Abstract

The present invention discloses a one-into-multi-out intelligent irrigation electric valve, belonging to the technical field of electric valves, including a valve body. A support seat is connected and installed on the lower surface of the valve body. A pipeline is arranged on the inner wall of the support seat. A flange is fixedly installed on the lower surface of the support seat. An inlet and an internal thread structure are arranged on the inner wall of the flange. It is characterized in that: a gearbox is fixedly installed on the upper surface of the valve body; in the present invention, by providing a socket soft bag and a valve body, the flange is connected to one end of the input pipeline, and then the four socket soft bags are respectively connected to the output pipelines. The light energy is converted into electrical energy by the solar panel and stored in the battery compartment. The power module on the control board provides a balanced voltage for the CPU module. After the CPU module is powered on, the motor is driven to work by the motor drive module, and the innovation of the flow channel structure facilitates the adjustment of pressure and flow rate, thereby improving the adjustment convenience of the electric valve.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric valves, and particularly relates to a one-inlet multi-outlet intelligent irrigation electric valve. Background Art

[0002] In recent years, the large-scale application of drip irrigation water-saving technology and the requirements of vast growers for the development of agricultural modernization, informatization and intelligence have enabled the application and development of drip irrigation automation technology in field planting and protected agriculture. The development of the technology provides an important support for improving the quality and efficiency of drip irrigation technology, giving full play to the comprehensive benefits of the project and the modern management of irrigation agriculture.

[0003] As a main irrigation method in field and protected agriculture irrigation, in the water conveyance system pressurized by a pumping station, the lift and working hours of the water pump are also very different. Under certain water supply conditions, to meet the requirements of the crop irrigation cycle, by selecting the number of rotation irrigation groups and the rotation irrigation sequence to determine the required water volume and water pressure, the configuration and operation effect of the system can be optimized, and the rotation irrigation realized by automatic control technology saves agricultural water, improves irrigation accuracy, saves labor and improves labor efficiency.

[0004] There are mainly two types of irrigation valves supporting the automatic rotation irrigation technology. One is an electromagnetic valve mainly based on the water power drive principle; the other is a two-way electric butterfly valve or ball valve. The timing rotation irrigation technology based on this two-way valve requires the configuration of an independent controller, and there is room for optimization and improvement in terms of cost investment, installation and maintenance.

[0005] At present, the main bottlenecks affecting the popularization and application of field drip irrigation automation technology are high equipment cost, large one-time investment and high maintenance cost;

[0006] At the same time, there are prominent problems at the technical level, such as large head loss of the electromagnetic valve of the key device for automatic control, easy blockage and difficult cleaning, resulting in the valve being out of control at irregular times;

[0007] And in some areas, due to underground pipe network problems and the first-stage irrigation pump with low lift and large flow rate, some valves need to adjust the pressure. The working principle of the electromagnetic valve makes it unable to adjust the pipeline pressure, which limits the application range of the electromagnetic valve; in addition, most of the existing valve opening shapes are double semi-moon shapes. This design enables the switching between the closed and open states, but when switching to the intermediate state, it is easy to have multiple channels in a semi-open state, so there is a water leakage phenomenon.

[0008] Therefore, a one-inlet multi-outlet intelligent irrigation electric valve is provided. Summary of the Invention

[0009] The purpose of the present invention is to propose a one-inlet multi-outlet intelligent irrigation electric valve to solve the above problems.

[0010] To achieve the above object, the present invention adopts the following technical solutions: a multi-outlet intelligent irrigation electric valve, comprising a valve body, a support seat is connected and installed on the lower surface of the valve body, a pipeline is arranged on the inner wall of the support seat, a flange is fixedly installed on the lower surface of the support seat, a water inlet and an internal thread structure are arranged on the inner wall of the flange, a gear box is fixedly installed on the upper surface of the valve body, a sealing cover is fixedly installed on the upper surface of the gear box, and a viewing window is arranged on the side wall of the gear box.

[0011] Four connecting and inserting soft bags are connected and installed on the outer surface of the valve body. The opening of the valve is a U-shaped opening. When the U-shaped opening is staggered from all pipelines, the electric valve is in a closed state. When the U-shaped opening is completely aligned with one of the pipelines, the electric valve is in an open state at this time. When the U-shaped opening is only half-aligned with one of the pipelines, the electric valve is in a half-open state at this time. A valve shaft is rotatably installed on the inner wall of the valve body, and one end of the valve shaft extends into the interior of the gear box. A control board is fixedly installed on the lower surface of the sealing cover by screws, a position sensing chip and a magnet are fixedly installed on the lower surface of the control board, a magnet assembly column is fixedly installed at one end of the valve shaft, a chamfered surface is arranged on the outer surface of the magnet assembly column, a motor is fixedly installed on the bottom inner wall of the gear box, a push rod is movably installed on the inner wall of the gear box, a universal shaft is arranged on the inner wall of the gear box, and transmission wheels are fixedly installed on the outer surfaces of the valve shaft and the universal shaft.

[0012] As a further description of the above technical solution:

[0013] A pressure sensor is fixedly installed on the inner wall of the connecting and inserting soft bag. A wire harness groove is arranged on the outer surface of the valve body. A plug cover is fixedly installed on the outer surface of the valve body. A flow meter is fixedly installed on the inner wall of the support seat.

[0014] As a further description of the above technical solution:

[0015] A valve shaft is rotatably installed on the inner wall of the valve body, and one end of the valve shaft extends into the interior of the gear box. A sealing ring is rotatably installed on the outer surface of the valve shaft, and the lower surface of the sealing ring is fixedly connected to the upper surface of the valve body.

[0016] As a further description of the above technical solution:

[0017] A solar panel is fixedly installed on the upper surface of the sealing cover. A control board is fixedly installed on the lower surface of the sealing cover by screws. The magnet assembly column and the position sensing chip are spaced 1 millimeter apart.

[0018] As a further description of the above technical solution:

[0019] A motor is fixedly installed on the inner wall of the bottom surface of the gearbox, and a battery compartment is fixedly installed on the inner wall of the bottom surface of the gearbox.

[0020] As a further description of the above technical solution:

[0021] An antenna is fixedly installed on the inner wall of the gearbox. One end of the antenna extends to the outside of the gearbox. An RS interface is provided on the side wall of the gearbox. A pressure sensor interface is provided on the outer surface of the gearbox. A flow sensor interface is provided on the other side wall of the support base.

[0022] As a further description of the above technical solution:

[0023] A solar charging module is fixedly installed on the upper surface of the control board. The output end of the solar charging module is electrically connected to the input end of the battery protection module. The output end of the battery protection module is electrically connected to the input end of the power module.

[0024] As a further description of the above technical solution:

[0025] The output end of the power module is electrically connected to the input end of the CPU module. The output end of the power module is electrically connected to the input end of the boost module. The output end of the boost module is electrically connected to the input end of the RS.

[0026] As a further description of the above technical solution:

[0027] The output end of the CPU module is electrically connected to the input end of the G module. The output end of the CPU module is electrically connected to the input end of the position detection module. The output end of the CPU module is electrically connected to the input end of the LORA module.

[0028] As a further description of the above technical solution:

[0029] The output end of the CPU module is electrically connected to the input end of the power detection module. The output end of the CPU module is electrically connected to the input end of the motor drive module. The output end of the CPU module is electrically connected to the input end of the RS.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0031] 1. In the present invention, through the special-shaped valve opening design in cooperation with four connecting and inserting soft bags, the switching between the open, fully closed, and half-open states is realized. More importantly, continuous opening is achieved, overcoming the defect that the traditional semi-circular opening is prone to water leakage during the switching of the intermediate state.

[0032] 2. In the present invention, by providing a connecting and inserting flexible bag and a valve body, it is connected to one end of the input pipeline through a flange, and then the four connecting and inserting flexible bags are respectively connected to the output pipeline. The solar panel converts light energy into electrical energy and stores it in the battery compartment. The power module on the control board provides a balanced voltage to the CPU module. After the CPU module is powered on, the motor is driven to work through the motor drive module, innovating the flow channel structure, thereby facilitating the adjustment of pressure and flow rate, and improving the adjustment convenience of the electric valve.

[0033] 3. In the present invention, by providing a pressure sensor, when the valve body is working, the pressure sensor will automatically detect the pressure inside the valve body, and then automatically maintain a constant pressure under the linkage of the RS module. When the electronic control fails, manual operation can be carried out through the manual control interface and under the action of the push rod, which can achieve uniform pressure and flow in the pipeline. By perceiving the pressure, the valve opening is adjusted, and the valve openings will be inconsistent. On the main pipeline, due to different installation positions, there will be different pressure losses and local losses, thereby further ensuring uniform pressure and flow.

[0034] 4. In the present invention, by providing a viewing window, while the valve shaft is rotating, the angle change of the valve shaft is observed through the viewing window. At the same time, the position detection module detects the change in the magnetic force direction generated by the magnet on the magnet assembly column, and then outputs the position information of the valve shaft, which is convenient for judging the opening and closing angle of the valve, and can timely control the valve, so that the flow rate of the water flow is more accurate during the use of the electric valve.

[0035] 5. In the present invention, due to the design of the electric valve pipeline, the valve can be adjusted steplessly, thereby adjusting the flow rate of the water flow inside the electric valve. On the one hand, it improves the convenience and accuracy of the electric valve adjustment, and on the other hand, it can also avoid the occurrence of water leakage caused by inaccurate valve adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional structure schematic diagram of a one-inlet and multi-outlet intelligent irrigation electric valve.

[0037] Figure 2 It is an exploded structure schematic diagram of a one-inlet and multi-outlet intelligent irrigation electric valve.

[0038] Figure 3 It is an exploded structure schematic diagram of the valve body in a one-inlet and multi-outlet intelligent irrigation electric valve.

[0039] Figure 4 It is a top view of a one-inlet and multi-outlet intelligent irrigation electric valve.

[0040] Figure 5 It is an exploded structure schematic diagram of the gearbox and the sealing cover in a one-inlet and multi-outlet intelligent irrigation electric valve.

[0041] Figure 6 It is a circuit flowchart in a one-inlet and multi-outlet intelligent irrigation electric valve.

[0042] Figure 7 It is a flowchart of the working principle in a one-inlet and multi-outlet intelligent irrigation electric valve.

[0043] Figure 8 It is a schematic structural diagram of State 1 of a one-inlet and multi-outlet intelligent irrigation electric valve in the prior art.

[0044] Figure 9 It is a schematic structural diagram of State 2 of a one-inlet and multi-outlet intelligent irrigation electric valve in the prior art.

[0045] Figure 10 It is a schematic structural diagram of State 3 of a one-inlet and multi-outlet intelligent irrigation electric valve in the prior art.

[0046] Figure 11 It is a schematic structural diagram of the fully closed state of this invention patent.

[0047] Figure 12 It is a schematic structural diagram of the opened state of this invention patent.

[0048] Figure 13 It is a schematic structural diagram of the half-opened state of this invention patent.

[0049] Legend Explanation:

[0050] 1. Valve body; 2. Support seat; 3. Flange; 4. Gear box; 5. Sealing cover; 6. Flowmeter; 7. Manual control interface; 8. Solar panel; 9. Antenna; 10. RS48 interface; 11. Socket and soft bag; 12. Pressure sensor; 13. Pressure sensor interface; 14. Flow sensor interface; 15. Plug cover; 16. Valve shaft; 17. Sealing ring; 18. Control board; 19. Battery compartment; 20. Motor; 21. Universal shaft; 22. Driving wheel; 23. Magnet assembly column; 24. Push rod; 25. Solar charging module; 26. Battery protection module; 27. Power module; 28. CPU module; 29. 4G module; 30. Position detection module; 31. LORA module; 32. Motor drive module; 33. Battery power detection module; 34. Boost module; 35. RS485 module; 36. Visual window. Specific Embodiments

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0052] See also Figures 1-13 The present invention provides a technical solution: a one-inlet and multiple-outlet intelligent irrigation electric valve, comprising a valve body 1, a support seat 2 is connected and installed on the lower surface of the valve body 1, a pipe is arranged on the inner wall of the support seat 2, a flange 3 is fixedly installed on the lower surface of the support seat 2, a water inlet and an inner thread structure are arranged on the inner wall of the flange 3, a gear box 4 is fixedly installed on the upper surface of the valve body 1, a sealing cover 5 is fixedly installed on the upper surface of the gear box 4, a visual window 36 is arranged on the side wall of the gear box 4, four socket-and-spigot soft bags 11 are connected and installed on the outer surface of the valve body 1, a pressure sensor 12 is fixedly installed on the inner wall of the socket-and-spigot soft bag 11, a wiring harness groove is arranged on the outer surface of the valve body 1, a blocking cover 15 is fixedly installed on the outer surface of the valve body 1, and a flow meter 6 is fixedly installed on the inner wall of the support seat 2.

[0053] The opening of the valve is a U-shaped opening. When the U-shaped opening is staggered with all pipelines, the electric valve is in a closed state. When the U-shaped opening is completely aligned with one of the pipelines, the electric valve is in an open state. When the U-shaped opening is only half aligned with one of the pipelines, the electric valve is in a half-open state.

[0054] The specific implementation method is as follows: the flange 3 is connected to one end of the input pipe, and then four socket soft bags 11 are respectively connected to the output pipes. The solar panel 8 converts light energy into electrical energy and stores it in the battery compartment 19. The power module 27 on the control board 18 provides a balanced voltage to the CPU module 28. After the CPU module 28 is powered on, the motor 20 is operated through the motor drive module 32. The visual window 36 is linked to the valve shaft, so the position of the valve shaft can be observed. When the signal is not good, the antenna 9 can be brought out through the external interface to improve the signal strength.

[0055] A valve shaft 16 is rotatably installed on the inner wall of the valve body 1. One end of the valve shaft 16 extends into the interior of the gearbox 4. A sealing ring 17 is rotatably installed on the outer surface of the valve shaft 16. The lower surface of the sealing ring 17 is fixedly connected to the upper surface of the valve body 1. A solar panel 8 is fixedly installed on the upper surface of the sealing cover 5. A control board 18 is fixedly installed on the lower surface of the sealing cover 5 by screws. A position sensing chip and a magnet are fixedly installed on the lower surface of the control board 18. A magnet assembly column 23 is fixedly installed at one end of the valve shaft 16. A chamfer is provided on the outer surface of the magnet assembly column 23. The magnet assembly column 23 and the position sensing chip are spaced 1 millimeter apart. A motor 20 is fixedly installed on the bottom inner wall of the gearbox 4. A push rod 24 is movably installed on the inner wall of the gearbox 4. A universal shaft 21 is provided on the inner wall of the gearbox 4. Transmission wheels 22 are fixedly installed on the outer surfaces of the valve shaft 16 and the universal shaft 21. A battery compartment 19 is fixedly installed on the bottom inner wall of the gearbox 4.

[0056] The specific embodiment is as follows: Under the action of the 4G module 29 and the LORA module 31, the valve shaft 16 rotates. At this time, the valve shaft 16 drives the transmission wheel 22 on the universal shaft 21 to move through the transmission wheel 22. Under the linkage of the universal shaft 21, the pointer indicates the position of the valve. At the same time, a magnet is installed above the magnet assembly column 23. In order to enable the position detection module 30 to detect the position of the valve shaft more accurately, the distance between the magnet and the position detection module 30 needs to be controlled within 1 millimeter. As the valve shaft rotates, the magnet assembly column 23 also drives the magnet above to rotate synchronously. At this time, the position detection module 30 senses the change in the direction of the magnetic field lines generated when the magnet rotates, and then outputs the position information of the valve shaft at this time. At the same time, the pointer indicates the valve position through the linkage of the universal shaft 21.

[0057] An antenna 9 is fixedly installed on the inner wall of the gearbox 4, one end of the antenna 9 extends to the outside of the gearbox 4, an RS48 interface 10 is provided on the side wall of the gearbox 4, a pressure sensor interface 13 is provided on the outer surface of the gearbox 4, a flow sensor interface 14 is provided on the other side wall of the support seat 2, a solar charging module 25 is fixedly installed on the upper surface of the control board 18, the output end of the solar charging module 25 is electrically connected to the input end of the battery protection module 26, the output end of the battery protection module 26 is electrically connected to the input end of the power supply module 27, the output end of the power supply module 27 is electrically connected to the input end of the CPU module 28, the output end of the power supply module 27 is electrically connected to the input end of the boost module 34, the output end of the boost module 34 is electrically connected to the input end of the RS485 module 35, the output end of the CPU module 28 is electrically connected to the input end of the 4G module 29, the output end of the CPU module 28 is electrically connected to the input end of the position detection module 30, the output end of the CPU module 28 is electrically connected to the input end of the LORA module 31, the output end of the CPU module 28 is electrically connected to the input end of the power detection module 33, the output end of the CPU module 28 is electrically connected to the input end of the motor drive module 32, the output end of the CPU module 28 is electrically connected to the input end of the RS485 module 35. The circuit diagrams of all the involved modules are prior arts. Here, the circuit elements will not be elaborated in detail one by one.

[0058] Its specific embodiment is as follows: When the valve body 1 is working, the pressure sensor 12 will automatically detect the pressure inside the valve body 1, and then automatically maintain a constant pressure under the linkage of the RS485 module 35. When the electric control fails, manual operation can be carried out through the manual control interface 7 and under the action of the push rod 24. The manual control interface 7 is usually blocked by a lock nut plug. When there is a problem with the electric control, the manual function is enabled, and the electric control function is unlocked through the push rod 24. In the manual function condition, the electric control function does not work and the motor idles. In the electric control function condition, the manual function cannot work.

[0059] As Figures 8-10 shown, which are respectively the state one, state two and state three of the electric valve in the prior art. The arrow indicates the water flow direction. When the valve in the electric valve presents the situation of state one and state two, there must be a channel in the open state, resulting in the inability to control the water flow. When the valve in the electric valve presents the situation of state three, water leakage will occur in multiple directions of the electric valve, resulting in waste of water source. As Figures 11-13As shown, they are the fully closed, fully open, and half-open states of the innovative electric valve. The U-shaped opening represents the opening of the valve. When the U-shaped opening is offset from all pipes, the electric valve is in the closed state. When the U-shaped opening is completely aligned with one of the pipes, the electric valve is in the open state. When the U-shaped opening is only half-aligned with one of the pipes, the electric valve is in the half-open state. Compared with the prior art, the above design is more convenient and accurate in operation, and also avoids water leakage caused by inaccurate valve closing.

[0060] Therefore, in the present invention, through the design of the valve opening with a special shape and the cooperation of four connecting and socket soft bags, the switching between the open, fully closed, and half-open states is achieved, overcoming the defect that the traditional semi-circular opening is prone to water leakage during the switching of the intermediate state.

[0061] Specifically, when the electric valve in the present application is in use, it is connected to one end of the input pipe through the flange 3, and then the four connecting and socket soft bags 11 are respectively connected to the output pipes. The solar panel 8 converts light energy into electrical energy and stores it in the battery compartment 19. The power module 27 on the control board 18 provides a balanced voltage for the CPU module 28. After the CPU module 28 is powered on, the motor 20 works through the motor drive module 32. Then, under the action of the 4G module 29 and the LORA module 31, the valve shaft 16 rotates. At this time, the valve shaft 16 drives the transmission wheel 22 on the universal shaft 21 to move through the transmission wheel 22. Under the linkage of the universal shaft 21, the pointer indicates the position of the valve. As the valve shaft rotates, the magnet assembly column 23 also drives the upper magnet to rotate synchronously. At this time, the position detection module 30 senses the change in the direction of the magnetic field lines generated by the rotation of the magnet and then outputs the position information of the valve shaft at this time. When the valve body 1 is working, the pressure sensor 12 automatically detects the pressure inside the valve body 1 and then automatically maintains a constant pressure under the linkage of the RS485 module 35. When the electric control fails, manual operation can be performed through the manual control interface 7 and under the action of the push rod 24.

[0062] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An intelligent irrigation electric valve with one inlet and multiple outlets, comprising a valve body (1), a support base (2) is connected and installed on the lower surface of the valve body (1), a pipeline is arranged on the inner wall of the support base (2), a flange (3) is fixedly installed on the lower surface of the support base (2), and a water inlet and an internal thread structure are arranged on the inner wall of the flange (3), characterized in that: The upper surface of the valve body (1) is fixedly installed with a gearbox (4), the upper surface of the gearbox (4) is fixedly installed with a sealing cover (5), and a visual window (36) is arranged on the side wall of the gearbox (4); Four connecting and inserting flexible bags (11) are communicated and installed on the outer surface of the valve body (1). The opening of the electric valve is a U-shaped opening. When the U-shaped opening is staggered from all the connecting and inserting flexible bags (11), the electric valve is in a closed state. When the U-shaped opening is completely aligned with one of the connecting and inserting flexible bags (11), the electric valve is in an open state at this time. When the U-shaped opening is only half-aligned with one of the connecting and inserting flexible bags (11), the electric valve is in a semi-open state at this time. A valve shaft (16) is rotatably installed on the inner wall of the valve body (1). One end of the valve shaft (16) extends into the interior of the gearbox (4). The lower surface of the sealing cover (5) is fixedly installed with a control board (18) by screws. A position sensing chip and a magnet are fixedly installed on the lower surface of the control board (18). A magnet assembly column (23) is fixedly installed at one end of the valve shaft (16). A chamfer is arranged on the outer surface of the magnet assembly column (23). A motor (20) is fixedly installed on the bottom inner wall of the gearbox (4). A push rod (24) is movably installed on the inner wall of the gearbox (4). A universal shaft (21) is arranged on the inner wall of the gearbox (4). Transmission wheels (22) are fixedly installed on the outer surfaces of the valve shaft (16) and the universal shaft (21); A pressure sensor (12) is fixedly installed on the inner wall of the connecting and inserting flexible bag (11). A wire harness groove is arranged on the outer surface of the valve body (1). A plug cover (15) is fixedly installed on the outer surface of the valve body (1). A flow meter (6) is fixedly installed on the inner wall of the support seat (2); A solar charging module (25) is fixedly installed on the upper surface of the control board (18). The output end of the solar charging module (25) is electrically connected to the input end of a battery protection module (26). The output end of the battery protection module (26) is electrically connected to the input end of a power supply module (27); The output end of the power supply module (27) is electrically connected to the input end of a CPU module (28). The output end of the power supply module (27) is electrically connected to the input end of a boost module (34). The output end of the boost module (34) is electrically connected to the input end of an RS485 module (35).

2. The one-in-multi-out intelligent irrigation electric valve according to claim 1, wherein, A sealing ring (17) is rotatably installed on the outer surface of the valve shaft (16). The lower surface of the sealing ring (17) is fixedly connected to the upper surface of the valve body (1).

3. The intelligent irrigation electric valve with one input and multiple outputs according to claim 1, characterized in that A solar panel (8) is fixedly installed on the upper surface of the sealing cover (5). The magnet assembly column (23) and the position sensing chip are spaced one millimeter apart.

4. The one-inlet multi-outlet intelligent irrigation electric valve according to claim 1, characterized in that, A battery compartment (19) is fixedly installed on the bottom inner wall of the gearbox (4).

5. The one-inlet multi-outlet intelligent irrigation electric valve according to claim 4, characterized in that, An antenna (9) is fixedly installed on the inner wall of the gearbox (4), one end of the antenna (9) extends to the outside of the gearbox (4), an RS485 interface (10) is arranged on the side wall of the gearbox (4), a pressure sensor interface (13) is arranged on the outer surface of the gearbox (4), and a flow sensor interface (14) is arranged on the other side wall of the support base (2).

6. The one-inlet multi-outlet intelligent irrigation electric valve according to claim 1, characterized in that, The output end of the CPU module (28) is electrically connected to the input end of the 4G module (29), the output end of the CPU module (28) is electrically connected to the input end of the position detection module (30), and the output end of the CPU module (28) is electrically connected to the input end of the LORA module (31).

7. The one-inlet multi-outlet intelligent irrigation electric valve according to claim 1, characterized in that, The output end of the CPU module (28) is electrically connected to the input end of the power detection module (33), the output end of the CPU module (28) is electrically connected to the input end of the motor drive module (32), and the output end of the CPU module (28) is electrically connected to the input end of the RS485 module (35).

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