A reed nozzle shutter magnetic conduction type electrical conversion module

Abstract

The utility model discloses an industrial flow control field's reed formula nozzle baffle magnetic conduction type electrical conversion module, including the casing, the electromagnetic coil, the nozzle, the spring, the baffle, the upper cover, the casing includes the magnetic core and the outer wall, and the electromagnetic coil sets up in the casing inside, and the magnetic core is located the center of electromagnetic coil, the nozzle sets up in the upper portion of magnetic core, and gas flows into the inside from the lower portion of casing, then, from the nozzle, flows out, the baffle is openwork sheet structure, can be deformed under the action of external force, moves up and down above the nozzle, the upper cover is fastened with the casing into a complete shell. Through the current of electromagnetic coil, can change the deformation of baffle, thereby adjust the gas pressure and flow of nozzle outlet. The utility model is made of soft magnetic material to make the shell, and the shell is designed into closed magnetic conduction structure, reduces the magnetic flux leakage, and achieves the good effect that power consumption is lower, and the electromagnetic interference to outside is smaller.

Description

Technical Field

[0001] This utility model relates to the field of industrial flow control, and in particular to a reed-type nozzle baffle magnetic electrical conversion module. Background Technology

[0002] Valve positioners, classified by structure into pneumatic valve positioners, electro-pneumatic valve positioners, and intelligent valve positioners, are the main accessories of control valves. They are usually used in conjunction with pneumatic control valves. They receive the output signal from the controller and then use their output signal to control the pneumatic control valve. After the control valve is activated, the displacement of the valve stem is fed back to the valve positioner through a mechanical device, and the valve position status is transmitted to the upper system through an electrical signal.

[0003] The key component of a valve positioner is the electrical conversion module, whose main function is to convert electrical signals into pneumatic signals. By amplifying the back pressure of the nozzle and controlling the flow, it provides sufficient power to operate the pneumatic control valve. The accuracy, real-time performance, reliability, vibration resistance, and low power consumption of the electrical conversion module directly affect the overall performance of the valve positioner. Designing a superior electrical conversion module is crucial for achieving intelligent valve positioners.

[0004] Traditional electrical conversion modules are mostly open-type structures, where the magnetic field generated by the electromagnetic coil diffuses into the surrounding space. This not only causes electromagnetic interference to surrounding electrical equipment but also reduces the force exerted on valve baffles, increasing power consumption. Designing the casing as a closed structure to reduce magnetic leakage could potentially lower the power consumption of the electrical conversion module and reduce external electromagnetic interference. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a reed-type nozzle baffle magnetic electrical conversion module. The outer shell is made of soft magnetic material and designed as a closed magnetic structure, which reduces magnetic leakage and achieves better technical effects such as lower power consumption and less electromagnetic interference to the outside.

[0006] The technical solution of this utility model is as follows:

[0007] A reed-type nozzle baffle magnetic electrical conversion module includes a housing 1, an electromagnetic coil 2, a nozzle 3, a baffle 4, and a top cover 5;

[0008] The housing 1 is a hollow metal cylinder with a top opening, including a magnetic core 6 and an outer wall 7. The bottom of the magnetic core 6 is fixed at the center of the inner bottom of the outer wall 7, and the bottom of the magnetic core 6 and the outer wall 7 are connected by a circular plate with a through hole in the center.

[0009] The electromagnetic coil 2 is disposed inside the housing 1, and the magnetic core 6 is precisely embedded in the center of the electromagnetic coil 2, with the central axis of the electromagnetic coil 2 coinciding with that of the magnetic core 6;

[0010] The nozzle 3 is fixed to the upper part of the magnetic core 6, and the gas can flow into the interior of the magnetic core 6 from the bottom of the housing 1 and then flow out from the nozzle 3;

[0011] The baffle 4 includes a support ring 12, an elastic beam 13, and a circular plate 14; the circular plate 14 is a circular thin sheet structure used to block the nozzle 3; the support ring 12 is a circular ring structure used to support the circular plate 14; the elastic beam 13 is a slender strip structure, with one end connected to the circular plate 14 and the other end connected to the support ring 12; when the baffle 4 is subjected to external force, the elastic beam 13 deforms, causing the circular plate 14 to move up and down;

[0012] The upper cover 5 is connected to the outer wall 7 by fasteners, so that the upper cover 5 and the shell 1 together form a closed cylindrical structure. This cylindrical structure is used to seal the electromagnetic coil 2, the nozzle 3 and the baffle 4. When the gas flows out from the nozzle 3, it can flow to the outside through the air gap of the shell.

[0013] Under the combined action of its own elasticity, gas pressure, and electromagnetic force of electromagnetic coil 2, baffle 4 moves up and down above nozzle 3; when the current of electromagnetic coil 2 increases, baffle 4 moves closer to nozzle 3; when the current of electromagnetic coil 2 decreases, baffle 4 moves away from nozzle 3.

[0014] Furthermore, the shell 1, baffle 4, and top cover 5 are all made of soft magnetic materials.

[0015] Furthermore, the outer wall 7 is a hollow cylindrical tube.

[0016] Furthermore, the magnetic core 6 is a hollow cylindrical tube.

[0017] Furthermore, the cross-section of the elastic beam 13 is shaped like the character "ㄣ".

[0018] Furthermore, the baffle 4 is formed by cutting a thin plate of soft magnetic material.

[0019] The beneficial technical effects of this utility model are as follows:

[0020] (1) The operating current of the electromagnetic coil is 0-4mA, which reduces power consumption;

[0021] (2) Reduced radiation interference to the outside world;

[0022] (3) It simplifies the manufacturing process of the baffle and reduces the manufacturing cost. Attached Figure Description

[0023] Figure 1 It's an exploded view;

[0024] Figure 2 This is an exterior view;

[0025] Figure 3 It is the structural diagram of the baffle plate;

[0026] Figure 4 It is the schematic diagram of the magnetic circuit.

[0027] In the figure, the corresponding relationship between the component names and the attached drawing numbers is as follows: 1. Housing; 2. Electromagnetic coil; 3. Nozzle; 4. Baffle plate; 5. Upper cover; 6. Magnetic core; 7. Outer wall; 8. Housing fixing hole; 9. Upper cover fixing hole; 10. Fixing screw; 11. Circuit board; 12. Support ring; 13. Elastic beam; 14. Circular plate. Specific implementation mode

[0028] Next, in combination with the attached drawings and embodiments, the present utility model will be specifically described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0029] The electrical conversion module of the embodiment is as Figure 1 shown, and mainly consists of a housing 1, an electromagnetic coil 2, a nozzle 3, a baffle plate 4 and an upper cover 5.

[0030] The housing 1 can be regarded as formed by a thin-walled metal shell with a "凵"-shaped cross-section rotating around a central axis. The position of this central axis meets the following conditions:

[0031] (1) perpendicular to the bottom edge of the thin-walled metal shell, that is, the horizontal side of the "凵" character;

[0032] (2) not coinciding with the thin-walled metal shell.

[0033] The housing 1 obtained according to the above rotation operation is a structure composed of two inner and outer cylindrical hollow cylinders, and these two hollow cylinders are respectively defined as the magnetic core 6 and the outer wall 7. The lower parts of the magnetic core 6 and the outer wall 7 are connected by a circular plate with a through hole in the center, so that the bottom of the housing 1 is closed and the upper part is open. Three housing fixing holes 8 are provided in the upper part of the outer wall 7 for fixedly connecting the baffle plate 4 and the upper cover 5.

[0034] The electromagnetic coil 2 is arranged inside the housing 1, and the magnetic core 6 is exactly embedded in the center of the electromagnetic coil 2, and their central axes coincide. The circuit board 11 is arranged between the electromagnetic coil 2 and the bottom of the housing 1 for adjusting the current of the electromagnetic coil 2.

[0035] The nozzle 3 is fixed on the upper part of the magnetic core 6, and gas can flow into the inside of the magnetic core 6 from the bottom of the housing 1 and then flow out from the nozzle 3.

[0036] As Figure 3As shown, the baffle 4 is cut from a thin plate and can be divided into three parts: a support ring 12, an elastic beam 13, and a circular plate 14. The circular plate 14 is a circular thin sheet structure used to block the nozzle 3; the support ring 12 is a circular ring structure used to support the circular plate 14; the elastic beam 13 is a slender strip structure with a "ㄣ"-shaped cross-section, with one end connected to the circular plate 14 and the other end connected to the support ring 12. When the baffle 4 is subjected to external force, the elastic beam 13 deforms, causing the circular plate 14 to move up and down.

[0037] The structure of the baffle 4 is equivalent to integrating the component that blocks the nozzle 3 and the spring into a single part. The advantage of doing so is that it reduces the complexity of the manufacturing process. Not only does it reduce the number of parts, but the baffle 4 can also be manufactured using only laser cutting technology, thereby effectively reducing manufacturing costs.

[0038] The upper cover 5 has three upper cover fixing holes 9, which correspond one-to-one with the shell fixing holes 8 on the outer wall 7. The upper cover 5 can be connected to the outer wall 7 by fixing screws 10, so that the upper cover 5 and the shell 1 form a complete closed cylindrical structure. Figure 2 Furthermore, the electromagnetic coil 2, nozzle 3, and baffle 4 are all sealed inside the cylinder. There is a gap between the top cover 5 and the outer wall 7, allowing the gas flowing from the nozzle 3 to escape to the outside through the air gap in the casing.

[0039] Under the combined action of its own elasticity, gas pressure, and electromagnetic force of electromagnetic coil 2, baffle 4 moves up and down above nozzle 3; after changing the current of electromagnetic coil 2, the position of baffle 5 will change accordingly, thereby adjusting the gas pressure and flow rate at the outlet of nozzle 3.

[0040] The shell 1, baffle 4, and top cover 5 are all made of soft magnetic materials. When the electromagnetic coil 2 is energized, all three will be magnetized. The magnetic circuit diagram is shown below. Figure 4 As shown. Without such a structure, the magnetic field lines of the electromagnetic coil 2 would diffuse into the surrounding space, and the electromagnetic force on the baffle 4 would be much smaller. With the structure designed in this embodiment, the magnetic field lines are almost entirely concentrated inside the housing 1, the baffle 4, and the top cover 5, with only a small portion diffusing to the outside. This is equivalent to the magnetic field lines of the electromagnetic coil 2 being concentrated and acting on the baffle, naturally increasing the electromagnetic force on the baffle 4 significantly. Therefore, compared to similar products, this embodiment has the following performance advantages:

[0041] (1) Lower power consumption, the working current of electromagnetic coil 2 is 0 to 4 mA;

[0042] (2) Reduced radiation interference to the outside world.

[0043] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, and for those of ordinary skill in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details.

Claims

1. A reed-type nozzle baffle magnetic electrical conversion module, characterized in that: It includes a housing (1), an electromagnetic coil (2), a nozzle (3), a baffle (4), and a top cover (5); The shell (1) is a hollow metal cylinder with a top opening, including a magnetic core (6) and an outer wall (7). The bottom of the magnetic core (6) is fixed at the center of the inner bottom of the outer wall (7). The bottom of the magnetic core (6) and the outer wall (7) are connected by a circular plate with a through hole in the center. The electromagnetic coil (2) is located inside the housing (1), and the magnetic core (6) is embedded in the center of the electromagnetic coil (2), with the central axis of the electromagnetic coil (2) coinciding with that of the magnetic core (6). The nozzle (3) is fixed to the upper part of the magnetic core (6). Gas can flow into the interior of the magnetic core (6) from the bottom of the housing (1) and then flow out from the nozzle (3). The baffle (4) includes a support ring (12), an elastic beam (13), and a circular plate (14); the circular plate (14) is a circular thin sheet structure used to block the nozzle (3); the support ring (12) is a circular ring structure used to support the circular plate (14); the elastic beam (13) is a slender strip structure, with one end connected to the circular plate (14) and the other end connected to the support ring (12); when the baffle (4) is subjected to external force, the elastic beam (13) deforms, causing the circular plate (14) to move up and down; The upper cover (5) is connected to the outer wall (7) by fasteners, so that the upper cover (5) and the shell (1) together form a closed cylindrical structure. The cylindrical structure is used to seal the electromagnetic coil (2), the nozzle (3) and the baffle (4). When the gas flows out from the nozzle (3), it can flow to the outside through the air gap of the shell. Under the combined action of its own elasticity, gas pressure and electromagnetic force of electromagnetic coil (2), the baffle (4) moves up and down above the nozzle (3); when the current of electromagnetic coil (2) increases, the baffle (4) moves closer to the nozzle (3); when the current of electromagnetic coil (2) decreases, the baffle (4) moves away from the nozzle (3).

2. The reed-type nozzle baffle magnetic electrical conversion module according to claim 1, characterized in that, The shell (1), baffle (4) and top cover (5) are all made of soft magnetic material.

3. The reed-type nozzle baffle magnetic electrical conversion module according to claim 1, characterized in that, The outer wall (7) is a hollow cylindrical tube.

4. The reed-type nozzle baffle magnetic electrical conversion module according to claim 1, characterized in that, The magnetic core (6) is a hollow cylindrical cylinder.

5. The reed-type nozzle baffle magnetic electrical conversion module according to claim 1, characterized in that, The cross-section of the elastic beam (13) is shaped like the character "ㄣ".

6. The reed-type nozzle baffle magnetic electrical conversion module according to claim 1, characterized in that, The baffle (4) is cut from a thin plate of soft magnetic material.

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