Electric air valve controlled through 485 signal

Abstract

The utility model relates to the technical field of electric air valves, and discloses an electric air valve controlled through 485 signals, which comprises an air valve main body, the top of the outer wall of the air valve main body is fixedly connected with a protective shell, the rear side of the interior of the protective shell is fixedly connected with a circuit board, the rear side of the circuit board is fixedly connected with a 485 address display, and the 485 address display is fixedly connected with a 485 interface. A 485 address device is arranged at the bottom of the inner side of the protective shell, a stepping motor is arranged on the left side of the 485 address device, and an input wiring terminal is fixedly connected to the right end of the rear side of the top of the protective shell. According to the utility model, the 485 address display and the keys capable of adjusting the 485 address setting are arranged on the circuit board, so that the 485 address setting can be displayed by pressing the keys for a long time, and the angle can be adjusted at will, for example, in a plurality of branch scenes, each wind speed flow can be adjusted, and various mounting modes of insertion and adapters are adopted, so that the applicability of mounting in different modes is improved; the daily use is met.

Description

Technical Field

[0001] This utility model relates to the field of electric air valve technology, and in particular to an electric air valve controlled by a 485 signal. Background Technology

[0002] With the continuous improvement of industrial automation, the requirements for precise control and centralized management of ventilation systems are increasing. Traditional air valve control methods, such as manual control and simple electric control, are no longer able to meet the needs of large-scale, high-precision and intelligent production in modern industry. Electric air valves controlled by RS485 signals have emerged. With the help of the RS485 communication protocol, the air valve can be closely connected to the industrial automation control system to realize the functions of remote centralized control and precise air volume adjustment, improve the operating efficiency and reliability of the ventilation system, and adapt to complex industrial production environments.

[0003] In the fields of building ventilation and air conditioning systems and industrial ventilation systems, there are clear requirements for the control accuracy, reliability, and communication interface of air valves. However, traditional air valves cannot be actively controlled by 485 signals, which means that each air valve cannot be set with a different 485 address. This prevents the host from controlling multiple air valves separately through 485 addresses, thus reducing the efficiency of the equipment. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an electric air valve controlled by a 485 signal, aiming to improve the problem in the prior art where the air valve cannot be actively controlled by a 485 signal, resulting in each air valve not being able to be set with a different 485 address, and thus the host cannot control multiple air valves separately through 485 addresses, thereby reducing the efficiency of the equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electric air valve controlled by a 485 signal, comprising an air valve body, a protective shell fixedly connected to the top of the outer wall of the air valve body, a circuit board fixedly connected to the rear side of the inner side of the protective shell, a 485 address display fixedly connected to the rear side of the circuit board, a 485 address setting provided at the bottom inner side of the protective shell, a stepper motor provided to the left of the 485 address setting, an input terminal fixedly connected to the right end of the top rear side of the protective shell, a valve plate provided in the middle of the inner side of the air valve body, and locking holes provided on both the front and rear sides of the outer wall of the air valve body, a locking plate fixedly connected to the outer wall of the locking hole, a buckle engaged on the inner side of the locking plate, and limit blocks fixedly connected to the left and right sides of the outer wall of the buckle.

[0006] As a further description of the above technical solution:

[0007] The outer wall of the main body of the air valve is fixedly connected to the left and right sides with circular frames.

[0008] As a further description of the above technical solution:

[0009] The top of each protective shell is provided with a pre-drilled hole.

[0010] As a further description of the above technical solution:

[0011] A knob is fixedly connected to the top of the outer wall of the valve plate.

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

[0013] A long plate is fixedly connected to the top of the buckle.

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

[0015] Both circular frames are designed symmetrically.

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

[0017] All of the aforementioned plates are fixedly connected at the same horizontal height.

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

[0019] The valve plate adopts a circular design.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the circuit board has a 485 address display and an adjustable 485 address setting button. By long-pressing the button to display the 485 address setting, and then short-pressing the button to change the 485 address setting, the valve plate inside each air valve body can be controlled to achieve flow rate at different angles. This allows for precise control and adjustment of the flow of the air valve body, enabling flexible control of the air volume status on each branch and arbitrary adjustment of the angle. For example, in multiple branch scenarios, each air velocity and flow rate can be adjusted. Furthermore, multiple installation methods such as plug-in and adapter components are available, improving the applicability to different installation methods and meeting daily usage needs.

[0022] 2. In this utility model, the cooperation of the card plate, card hole, elongated plate, buckle and limiting block realizes multiple installation methods such as plug-in and adapter, improves the applicability to different installation methods and meets daily use needs. Attached Figure Description

[0023] Figure 1 A front perspective view of an electric air valve controlled by a 485 signal according to this utility model;

[0024] Figure 2A side view of an electric air valve controlled by a 485 signal according to this utility model;

[0025] Figure 3 This is a structural exploded view of an electric air valve controlled by a 485 signal according to the present invention.

[0026] Figure 4 A side view of an electric air valve controlled by a 485 signal according to this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of an electric air valve controlled by a 485 signal according to the present invention.

[0028] Figure 6 This is a structural breakdown diagram of an electric air valve controlled by a 485 signal, as proposed in this utility model.

[0029] Legend:

[0030] 1. Air valve body; 2. Valve plate; 3. Circuit board; 4. Stepper motor; 5. 485 address display; 6. 485 address setting; 7. Input terminal block; 8. Card plate; 9. Card hole; 10. Long plate; 11. Buckle; 12. Limit block; 13. Protective shell; 14. Reserved hole; 15. Circular frame; 16. Knob. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of an electric air valve controlled by a 485 signal, comprising an air valve body 1, a protective shell 13 fixedly connected to the top of the outer wall of the air valve body 1, a circuit board 3 fixedly connected to the rear side of the inner side of the protective shell 13, a 485 address display 5 fixedly connected to the rear side of the circuit board 3, a 485 address setting 6 provided at the bottom of the inner side of the protective shell 13, a stepper motor 4 provided to the left of the 485 address setting 6, an input terminal 7 fixedly connected to the right end of the top rear side of the protective shell 13, a valve plate 2 provided in the middle of the inner side of the air valve body 1, and a locking hole 9 provided on both the front and rear sides of the outer wall of the air valve body 1. A locking plate 8 is fixedly connected to the outer wall of the locking hole 9, a buckle 11 is engaged on the inner side of the locking plate 8, and limit blocks 12 are fixedly connected to the left and right sides of the outer wall of the buckle 11. Multiple locking plates 8 are fixedly connected at the same horizontal height.

[0033] Specifically, a circuit board 3 is installed in the rear area inside the protective shell 13. This circuit board 3 serves as a control processing unit. An 485 address display module 5 is fixed to the rear surface of the circuit board 3 using an embedded mounting process. The stepper motor 4 has high-precision position control capabilities, thereby adjusting the opening of the air valve. The air valve body 1 serves as the core of the airflow channel. A valve plate 2 is installed in the middle of its inner side through a bearing assembly. The valve plate 2 is made of high-strength aluminum alloy and has an inner elastic buckle 11 structure. It can be quickly disassembled and assembled by pressing the unlocking buttons on both sides of the buckle plate 8. The buckle 11 adopts a barb type and forms an interference fit with the edge of the buckle hole 9 to ensure a stable mechanical connection under vibration conditions.

[0034] Please see the appendix Figure 4 - Appendix Figure 6 The top of the protective shell 13 is provided with a reserved hole 14. The outer walls of the main body of the air valve 1 are fixedly connected with circular frames 15 on the left and right sides. The top of the outer wall of the valve plate 2 is fixedly connected with a knob 16. The top of the buckle 11 is fixedly connected with a long plate 10. The two circular frames 15 are symmetrically designed, and the valve plate 2 is circularly designed.

[0035] Specifically, circular frames 15 are fixedly connected to the left and right sides of the outer wall of the main body 1 of the air valve. The circular frames 15 are symmetrical to ensure precise alignment during installation. The inner wall of the circular frames 15 is designed with an annular sealing groove to ensure ease of manual adjustment. The opening information of the valve plate 2 can be fed back to the control in real time, realizing stepless switching between electric and manual modes. This effectively reduces airflow resistance and integrates the heat dissipation and expansion functions of the protective shell 13, the sealing and installation functions of the circular frames 15, the human-machine interaction function of the knob 16, and the quick connection function of the buckle 11, achieving a comprehensive balance of reliability.

[0036] Working principle: Circuit board 3 has a 485 address display 5 and an adjustable 485 address setting 6 button. Pressing and holding the button displays the 485 address setting 6, and pressing and holding the button changes the setting. The device uses a stepper motor 4 to precisely control the valve plate 2 angle. It also has a power-on reset function to automatically correct the angle accuracy. Each valve body 1 can be individually set with a different 485 address setting 6. Multiple valve bodies 1 can be combined to work together, with the specific combination method depending on the actual scenario requirements. The host can send 485 address settings 6 to different valve bodies 1. The corresponding command-driven operation allows the main body 1 of the damper to be connected to PE pipes via a quick-connect method, or it can be installed on pipes of different shapes with the addition of adapters. Therefore, it realizes the 485 signal and uses concrete hardware to control the valve plate 2 inside each damper body 1 to achieve flow rates at different angles. This enables precise control and adjustment of the flow of the damper body 1, allowing for flexible control of the air volume status on each branch and arbitrary adjustment of the angle. For example, in multiple branch scenarios, it can adjust the air velocity and flow rate of each branch. Furthermore, the multiple installation methods, including plug-in and adapters, improve the applicability to different installation methods and meet daily usage needs.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric damper controlled by a 485 signal, comprising a damper body (1), characterized in that: A protective shell (13) is fixedly connected to the top of the outer wall of the air valve body (1). A circuit board (3) is fixedly connected to the rear side of the inner side of the protective shell (13). A 485 address display (5) is fixedly connected to the rear side of the circuit board (3). A 485 address setting (6) is provided at the bottom of the inner side of the protective shell (13). A stepper motor (4) is provided on the left side of the 485 address setting (6). An input terminal (7) is fixedly connected to the right end of the rear top of the protective shell (13). A valve plate (2) is provided in the middle of the inner side of the air valve body (1). A card hole (9) is provided on both the front and rear sides of the outer wall of the air valve body (1). A card plate (8) is fixedly connected to the outer wall of the card hole (9). A buckle (11) is engaged on the inner side of the card plate (8). Limit blocks (12) are fixedly connected to the left and right sides of the outer wall of the buckle (11).

2. The electric air valve controlled by a 485 signal according to claim 1, characterized in that: The outer walls of the main body of the air valve (1) are fixedly connected with circular frames (15) on both the left and right sides.

3. The electric air valve controlled by a 485 signal according to claim 1, characterized in that: Each of the protective shells (13) has a pre-drilled hole (14) on its top.

4. The electric air valve controlled by a 485 signal according to claim 1, characterized in that: A knob (16) is fixedly connected to the top of the outer wall of the valve plate (2).

5. An electric air valve controlled by a 485 signal according to claim 1, characterized in that: The top of the buckle (11) is fixedly connected to an elongated plate (10).

6. An electric air valve controlled by a 485 signal according to claim 2, characterized in that: Both circular frames (15) are designed symmetrically.

7. An electric air valve controlled by a 485 signal according to claim 1, characterized in that: Multiple of the aforementioned plates (8) are fixedly connected at the same horizontal height.

8. An electric air valve controlled by a 485 signal according to claim 1, characterized in that: The valve plate (2) adopts a circular design.

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