Gas transfer device

Abstract

A gas transmission device includes a housing including a gas outlet cover, a gas outlet end, a containing space, a gas inlet cover and a gas inlet end; a valve body in a circular shape including a gas outlet plate, a valve piece and a first plate member arranged in sequence and stacked in the containing space; and an actuating body in a circular shape stacked on the valve body and including a second plate member, a frame and an actuating assembly; whereby when the actuating body is driven, the valve body is operated to open a flow path when the gas flow is forward and to close the flow path when the gas flow is reverse by the misalignment between the first through hole and the valve hole.

Description

[Technical Field]

[0001] This case relates to a gas transmission device, and more particularly to a high-flow-rate gas transmission device. [Background Technology]

[0002] Currently, in various fields, including pharmaceuticals, computer technology, printing, and energy, products are developing towards refinement and miniaturization. Among them, pumps used to transfer fluids are key components in products such as micropumps, sprayers, inkjet heads, and industrial printing devices. Therefore, how to break through their technical bottlenecks through innovative structures is an important aspect of development.

[0003] With the rapid development of technology, the applications of fluid transfer devices are becoming more and more diversified, ranging from industrial applications, biomedical applications, healthcare, electronic heat dissipation, and even the recently popular wearable devices. It can be seen that traditional pumps are gradually moving towards miniaturization and maximizing flow rate.

[0004] However, the current trend of gas transmission devices is towards maximizing flow rate. The most important structural design is to prevent backflow and generate unidirectional flow. Therefore, how to generate a gas transmission device with a large flow rate is the main research topic of this project. [Summary of the Invention]

[0005] The main objective of this invention is to provide a gas transmission device in which an outlet plate, a valve plate, a first plate, a second plate, and a circular actuating component are stacked and used in sequence. The valve body, which is formed by the structure of the valve plate, the first plate, and the second plate, operates by opening the flow path when the airflow is in the forward direction and closing the flow path when the airflow is in the reverse direction, thereby preventing backflow and generating unidirectional airflow, thus forming a gas transmission device with a large flow rate.

[0006] A broad embodiment of this case is a gas transmission device, comprising: a housing, including an outlet cover, an outlet end, a accommodating space, an inlet cover, and an inlet end; the outlet cover is disposed on the housing and has the outlet end; the inlet cover is disposed below the housing and has the inlet end; the accommodating space communicates with the inlet end and the outlet end, and the outlet cover and the inlet cover cover the upper and lower sides of the accommodating space; a valve body, which is circular in shape, including an outlet plate, a valve plate, and a first plate sequentially stacked in the accommodating space, having a recess formed by a surface depression of a certain depth; the valve plate is located between the outlet plate and the first plate, and the valve plate maintains a distance from the recess of the first plate, allowing the valve plate to move within the distance to form a flow path control. The valve body has multiple air outlets, a first plate with multiple first through holes, a valve plate with multiple valve holes, and the valve holes are offset from the first through holes and correspond to the air outlets. An actuator, a circular structure stacked on the valve body, includes a second plate, a frame, and an actuator assembly. The second plate is stacked on the first plate of the valve body and has multiple second through holes corresponding to the first through holes. The frame is stacked on the second plate, and the actuator assembly is stacked on the frame. When the actuator is driven, the offset between the first through holes and the valve holes allows the valve body to open the flow path when the airflow is forward and close the flow path when the airflow is reverse. [Attached Image Description]

[0007] Figure 1A This is a schematic diagram of the appearance of the gas transmission device in this case.

[0008] Figure 1B This is an exploded view of the gas transmission device in this case.

[0009] Figure 1C This is a schematic diagram of the appearance of the second embodiment of the gas transmission device in this case.

[0010] Figure 2A This is a schematic diagram of the exterior of the main body of the gas transmission device in this case.

[0011] Figure 2B This is a first-view exploded view of the main body of the gas transmission device in this case.

[0012] Figure 2C This is a second-view exploded view of the main body of the gas transmission device in this case.

[0013] Figures 3A to 3C and Figure 4 This is a schematic diagram of the operation of the gas transmission device in this case.

[0014] [Symbol Explanation]

[0015] 100: Gas transmission device

[0016] 11: Vent cover

[0017] 111: Air outlet end

[0018] 12: Outer shell

[0019] 121: Storage space

[0020] 122: Sealing port

[0021] 13: Air intake cover

[0022] 131: Intake end

[0023] 2: Valve body

[0024] 21: Vent panel

[0025] 211: Vent

[0026] 22: Valve plate

[0027] 221: Valve port

[0028] 23: First Slab

[0029] 231: First through hole

[0030] 232: concave part

[0031] 3: Actuator

[0032] 31: Second plate

[0033] 311: Second through hole

[0034] 32: Framework

[0035] 322: Intake chamber

[0036] 33: Actuation Component

[0037] 331: Air intake plate

[0038] 3311: Air intake

[0039] 3312: Actuation Zone

[0040] 3313: Fixed Area

[0041] 332: Piezoelectric element

[0042] 333: Insulating frame

[0043] 334: Conductive framework

[0044] 3341: Electrode

[0045] 3342: Pin connector

[0046] 5: Main body of the gas transmission device

[0047] d1: Diameter of the vent

[0048] d2: Orifice diameter of the valve orifice

[0049] G: Spacing

Detailed Implementation Methods

[0050] Some typical embodiments that embody the features and advantages of this invention will be described in detail in the following description. It should be understood that this invention can have various variations in different forms, all of which do not depart from the scope of this invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit this invention.

[0051] This invention provides a gas transmission device 100; please refer to [reference needed]. Figure 1A , Figure 1B , Figure 2A , Figure 2B and Figure 2C As shown, the gas transmission device 100 includes a housing 12, a gas outlet cover 11, a gas outlet end 111, a receiving space 121, a gas inlet cover 13, and a gas inlet end 131. The gas outlet cover 11 is disposed on the housing 12, and the gas outlet cover 11 has a gas outlet end 111. The gas inlet cover 13 is disposed below the housing 12, and the gas inlet cover 13 has a gas inlet end 131. The receiving space 121 communicates with the gas inlet end 131 and the gas outlet end 111, and the gas outlet cover 11 and the gas inlet cover 13 cover the upper and lower sides of the receiving space 121. It is worth noting that the gas outlet cover 11, the housing 12, and the gas inlet cover 13 can also be circular or square in structure, but are not limited thereto. In other embodiments, the gas outlet cover 11, the housing 12, and the gas inlet cover 13 can also be adjusted according to their design requirements.

[0052] For ease of explanation, the following embodiments will be described using a circular shape for the vent cap 11, outer shell 12, and inlet cap 13. The vent cap 11, outer shell 12, and inlet cap 13 are in the form of a circular box, having an vent end 111, an inlet end 131, and a receiving space 121. The vent end 111 and the inlet end 131 are located on two opposite sides of the outer shell 12 and are connected to the receiving space 121.

[0053] like Figure 1A , Figure 1B and Figures 2A to 2CAs shown, the valve body 2 is circular and includes an air outlet plate 21, a valve plate 22, and a first plate 23 stacked sequentially in the accommodating space 121. The first plate 23 has a recess 232 formed by a surface depression. The valve plate 22 is located between the air outlet plate 21 and the recess 232 of the first plate 23, and the valve plate 22 and the recess 232 of the first plate 23 maintain a distance G, so that the valve plate 22 can form a flow path control by displacement at the distance G. The air outlet plate 21 has a plurality of air outlet holes 211, the first plate 23 has a plurality of first through holes 231, and the valve plate 22 has a plurality of valve holes 221. The valve holes 221 and the first through holes 231 are misaligned and the valve holes 221 are correspondingly arranged with the air outlet holes 211.

[0054] The valve body 2 includes an air outlet plate 21, a valve plate 22, and a first plate 23 stacked sequentially in the accommodating space 121. The valve plate 22 is located between the air outlet plate 21 and the first plate 23. In this embodiment, the air outlet plate 21 and the first plate 23 are both metal plates. The valve plate 22 is a flexible film with a thickness of approximately 0.4 to 0.6 micrometers (μm), preferably 0.5 micrometers (μm). In this embodiment, the valve plate 22 is preferably a polyimide film, but it is not limited thereto.

[0055] The aforementioned air outlet plate 21 has multiple air outlet holes 211, the first plate 23 has multiple first through holes 231, and the valve plate 22 has multiple valve holes 221. The positions of the valve holes 221 and the first through holes 231 are offset from each other, allowing the valve plate 22 to close the first through holes 231. The positions of the valve holes 221 correspond to the air outlet holes 211, and the diameter d2 of the valve hole is greater than or equal to the diameter d1 of the air outlet hole. This design of the diameter of the air outlet hole 211 allows a large flow of air to be quickly discharged through the valve hole 221 and then through the air outlet hole 211 when the valve body 2 opens the flow path; and the first plate 23 has multiple valve holes 221. The first plate 23 has a recess 232 formed by a surface depression, and the valve plate 22 covers the first plate 23, such that the valve plate 22 and the recess 232 of the first plate 23 maintain a distance G, the ratio of this distance G to the thickness of the first plate 23 is between 1:2 and 2:3, approximately 40 to 70 micrometers (μm), and in this embodiment, preferably 60 micrometers (μm); with this valve body 2 design, when the valve plate 22 is biased toward the first plate 23, the valve plate 22 can close the first through hole 231, and the valve body 2 operates in a manner that closes the flow path (e.g. Figure 3B As shown), when the valve plate 22 is biased towards the outlet plate 21, the valve plate 22 vibrates the airflow within the gap G, and the airflow (the path indicated by the arrow) passes through the valve hole 221 and then quickly exits through the outlet hole 211. The valve body 2 operates in a way that opens the flow path. Figure 3C (As shown). This valve body 2 is designed to prevent backflow and generate a large flow rate control function for unidirectional airflow.

[0056] Please see Figure 3A The actuator 3 is a circular component stacked on the valve body 2, comprising a second plate 31, a frame 32, and an actuator assembly 33. The second plate 31 is stacked on the first plate 23 of the valve body 2, and the second plate 31 has a plurality of second through holes 311, which correspond to the first through holes 231. The frame 32 is stacked on the second plate 31, and the actuator assembly 33 is stacked on the frame 32. Thus, when the actuator 3 is driven, it is misaligned between the first through hole 231 and the valve hole 221. When the airflow is in the forward direction, the valve body 2 operates to open the flow path, and when the airflow is in the reverse direction, the valve body 2 operates to close the flow path.

[0057] It is worth noting that the combination of valve body 2 and actuator 3 is referred to as the gas transmission device body 5. In this embodiment, the gas transmission device body 5 is placed within the accommodating space 121 of the circular outer shell 12, and covered by a circular outlet cover 11 and inlet cover 13, sealing the sealing port 122. However, this is not a limitation; the gas transmission device body 5 can also be placed in a square outer shell 12 (e.g., Figure 1C (As shown). In addition, it is worth noting that the material of the sealing port 122 is epoxy resin or any other material that can seal the sealing port 122.

[0058] Furthermore, the actuator 3 includes a second plate 31, a frame 32, and an actuation assembly 33. The second plate 31 is fixed to the first plate 23, and the thickness of the second plate 31 is greater than that of the first plate 23. The second plate 31 has a plurality of second through holes 311, the number, position, and diameter of which correspond to the first through holes 231. In this embodiment, the diameter of the second through holes 311 is the same as that of the first through holes 231. The second plate 31 may also be provided with a contact point (not shown) for electrical connection by wire. In this embodiment, the second plate 31 is a metal plate.

[0059] The aforementioned frame 32 is positioned on the second plate 31, and the actuation assembly 33 is positioned on the frame 32; the aforementioned actuation assembly 33 includes an air intake plate 331, a piezoelectric sheet 332, an insulating frame 333, and a conductive frame 334.

[0060] The aforementioned air intake plate 331 has multiple air intake holes 3311, which are arranged in a shape on the plane of the air intake plate 331. In this embodiment, the air intake holes 3311 are arranged in a circle. The air intake plate 331 defines an actuating area 3312 and a fixed area 3313 by the shape of the arrangement of the air intake holes 3311. The area surrounded by the air intake holes 3311 is the actuating area 3312, and the area located outside the air intake holes 3311 is the fixed area 3313. The aforementioned air intake holes 3311 are tapered, which can improve air intake efficiency and has the effect of easy air intake and difficult air exit to prevent gas backflow. The number of air intake holes 3311 is even. In one embodiment, the number of air intake holes 3311 is 48, and in another embodiment, the number of air intake holes 3311 is 52, but it is not limited to this. In addition, the arrangement shape of the aforementioned air intake holes 3311 can be rectangular, square, circular, etc.

[0061] The piezoelectric element 332 is circular in shape and is disposed in the actuation area 3312 of the air intake plate 331, corresponding to the actuation area 3312 of the air intake plate 331. In this embodiment, when the air intake holes 3311 are arranged in a circle, the actuation area 3312 is defined as circular, and the piezoelectric element 332 is also circular. As mentioned above, the arrangement shape of the air intake holes 3311 can be rectangular, square, circular, etc., and the shape of the actuation area 3312 changes with the arrangement of the air intake holes 3311, and the piezoelectric element 332 also corresponds to its shape.

[0062] The aforementioned insulating frame 333 is disposed in the fixing area 3313 of the air intake plate 331, and the conductive frame 334 is disposed on the insulating frame 333. The aforementioned conductive frame 334 has an electrode 3341 and a connector 3342. The electrode 3341 is in electrical contact with the piezoelectric piece 332, and the connector 3342 is connected to an external wire. The air intake plate 331 itself is also made of conductive material and is in electrical contact with the piezoelectric piece 332. The connection point of the frame 32 is provided for another wire to connect, thus completing the drive circuit of the actuation component 33. In this way, the gas transmission device 100 of this invention... The drive signal can be transmitted via two wires. One wire passes through the pin 3342 of the conductive frame 334 and then through the electrode 3341 to transmit the drive signal to the piezoelectric element 332. The other wire passes through the contact point of the frame 32, then through the frame 32 to the air intake plate 331, and then through the air intake plate 331 to the piezoelectric element 332 to transmit the drive signal to the piezoelectric element 332. This causes the piezoelectric element 332 to receive the drive signal (drive voltage and drive frequency) and deform, thereby driving the actuator 33 to produce a vertical displacement (e.g., Figures 3B to 3C (As shown).

[0063] The aforementioned actuation component 33 is circular in shape. In the specific embodiment of this case, the actuation component 33 is circular in shape. Under the same device peripheral dimensions, the actuation component 33 adopts a circular appearance design. The air intake plate 331, piezoelectric sheet 332, insulating frame 333, and conductive frame 334 that constitute the component are also circular.

[0064] See also Figure 1A , Figure 1B , Figures 2A to 2C , Figures 3A to 3C and Figure 4 As shown, the above-mentioned air outlet plate 21, valve plate 22, first plate 23, second plate 31 and actuation component 33 are stacked and housed in the housing space 121 of the outer shell 12, and then fixed to the upper and lower parts of the outer shell 12 by the air inlet cover 13 and the air outlet cover 11, sealing the gas transmission device 100 formed by the housing space 121. The actuation component 33 is stacked and fixed on the frame 32 by the air inlet plate 331, piezoelectric plate 332, insulating frame 333 and conductive frame 334, and an air inlet chamber 322 is formed between the actuation component 33, the frame 32 and the second plate 31. Furthermore, the first through hole 231 of the first plate 23 and the second through hole 311 of the second plate 31 are both located below the vertical projection area of ​​the actuation area 3312 of the air inlet plate 331, and are vertically corresponding to the actuation area 3312.

[0065] In the specific embodiments of this case, such as Figures 3A to 3C As shown, when the piezoelectric element 332 receives a driving signal (driving voltage and driving frequency), it converts electrical energy into mechanical energy through the inverse piezoelectric effect. The deformation amount of the piezoelectric element 332 is controlled according to the magnitude of the driving voltage, and the deformation frequency of the piezoelectric element 332 is controlled according to the driving frequency. The deformation of the piezoelectric element 332 drives the actuation component 33 to start transmitting gas.

[0066] Please see again Figure 3B As shown, after receiving the drive signal, the piezoelectric element 332 begins to deform, causing the intake plate 331 to bend upwards. At this time, the volume of the intake chamber 322 increases, forming a negative pressure, which attracts the valve plate 22 upwards and closes the first through hole 231 of the first plate 23. Figure 4 As shown, gas is drawn into the actuation assembly 33 from the intake end 131 of the air intake cover 13 and enters the intake chamber 322; please refer to [further details]. Figure 3C As shown, the piezoelectric element 332 receives a driving signal that causes it to deform, which in turn causes the intake plate 331 to bend downwards, compressing the intake chamber 322. At this time, as... Figure 4Gas is drawn into the actuation assembly 33 from the air inlet end 131 of the housing 11. Simultaneously, the gas inside the air inlet chamber 322 is pushed downwards through the second through hole 311 of the second plate 31 and the first through hole 231 of the first plate 23. This causes kinetic energy to be transferred downwards from the actuation assembly 33 to the distance G, pushing the valve plate 22 to displace. The valve plate 22 then disengages from the first through hole 231 and abuts against the outlet plate 21, opening the flow path. Gas is then transferred downwards through the valve hole 221 to the outlet hole 211 of the outlet plate 21, and finally discharged from the outlet end 111 of the outlet cover 11 (e.g., gas is drawn into the actuation assembly 33). Figure 4 (as shown); then, as shown Figure 3B As shown, when the piezoelectric element 332 drives the intake plate 331 to bend upward, increasing the volume of the intake chamber 322, a negative pressure state is formed inside the intake chamber 322. This causes the valve plate 22 to close the first through hole 231, preventing gas from flowing back into the intake chamber 322 through the valve hole 221, the first through hole 231, and the second through hole 311. Furthermore, when gas from the accommodating space 121 enters the intake chamber 322, the gas pressure in the accommodating space 121 will be lower than the gas pressure outside the gas transmission device 100. Therefore, gas outside the gas transmission device 100 enters the accommodating space 121 through the intake end 131 (e.g., Figure 4 (As shown); when the piezoelectric element 332 receives the drive signal and deforms again, it drives the actuator 33 to move downward again, as previously described, the gas in the intake chamber 322 is guided downward and finally discharged from the outlet end 111. By continuously performing the aforementioned steps through the drive signal, the gas can be quickly introduced from the intake end 131 and discharged from the outlet end 111, achieving the effect of large flow rate.

[0067] The valve body 2, which is composed of the above-mentioned air outlet plate 21, valve plate 22, and first plate 23, can be designed and implemented based on the diameter or number of air outlet 211, valve hole 221, and first through hole 231. Please refer to Table 1 below for the relationship between the diameter and number of air outlet 211 and the number of valve hole 221 and first through hole 231, so as to achieve the best effect of large flow rate of gas transmission device 100.

[0068] Table 1

[0069]

[0070] Furthermore, in the specific embodiment of this case, the valve body 2, composed of the vent plate 21, valve plate 22, and first plate 23, is designed with consideration for the valve plate 22 being a flexible thin film with a thickness of approximately 0.4 to 0.6 micrometers (μm), and the distance G maintained between the valve plate 22 and the recess 232 of the first plate 23 falling within the range of approximately 40 to 70 micrometers (μm). Therefore, the piezoelectric sheet 332 of the actuation component 33 is maintained at an operating frequency of 20 to 22 kHz, preferably 21 kHz. At an operating frequency of Hertz (kHz), the pressure difference is maintained at a wavelength of 30 micrometers (μm). The valve plate 22 with a diameter of 3 micrometers (μm) is set in the recess 232 of the outlet plate 21 within a distance G of 40 to 70 micrometers (μm). This distance G allows for the oscillation of a rarefaction wave within the space to form a unidirectional flow that prevents backflow. This effect allows for the attainment of maximum flow rate. Minimizing the pressure drop that occurs as air flows through the valve body 2 is important for maximizing valve performance.

[0071] In summary, the gas transmission device provided in this case uses an outlet plate, a valve plate, a first plate, a second plate, and a circular actuating component stacked and combined in sequence. The valve body, constructed from the valve plate, the first plate, and the second plate, has a first through hole, a valve hole, and an outlet hole located in the actuation area surrounded by an inlet hole. When the piezoelectric plate drives the inlet plate, it can quickly guide the gas downward. The misalignment between the first through hole and the valve hole prevents gas backflow, resulting in a structure with high flow rate and prevention of gas backflow. When the airflow is forward, the valve body operates by opening the flow path; when the airflow is reverse, the valve body operates by closing the flow path, thereby preventing backflow and generating unidirectional airflow. This increases the gas transmission volume and significantly increases the gas flow rate, forming a high-flow-rate gas transmission device with significant industrial applicability.

[0072] This case can be modified in various ways by those who are familiar with this technology, but all of them are still subject to the protection sought by the attached patent application.

Claims

1. A gas transmission device, comprising: An outer casing includes an air vent cover, an air vent end, a receiving space, an air inlet cover, and an air inlet end. The air vent cover is disposed on the outer casing and has the air vent end. The air inlet cover is disposed at the bottom of the outer casing and has the air inlet end. The receiving space communicates with the air inlet end and the air vent end, and the air vent cover and the air inlet cover cover the upper and lower sides of the receiving space. A valve body, circular in shape, includes an outlet plate, a valve plate, and a first plate stacked sequentially within a receiving space. The valve plate has a recess formed by a surface indentation, and is located between the outlet plate and the first plate, with a distance maintained between the valve plate and the recess of the first plate, allowing the valve plate to move within this distance to form a flow path control. The outlet plate has multiple outlet holes, the first plate has multiple first through holes, and the valve plate has multiple valve holes, which are offset from the first through holes and correspond to the outlet holes. The distance between the valve holes is 60-70 micrometers. An actuating element, which is a circular shape stacked on the valve body, includes a second plate, a frame, and an actuating assembly. The second plate is stacked on the first plate of the valve body and has multiple second through holes corresponding to the first through holes. The frame is stacked on the second plate, and the actuating assembly is stacked on the frame and includes a piezoelectric sheet. The piezoelectric sheet receives a drive signal to drive the actuating assembly to generate displacement. The piezoelectric sheet is maintained at an operating frequency of 20-22 kHz, causing the valve plate to oscillate within the spacing to form a unidirectional flow-guiding mechanism that prevents backflow. Therefore, when the actuator is driven, it is offset between the first through hole and the valve hole. When the airflow is in the forward direction, the valve body operates to open the flow path, and when the airflow is in the reverse direction, the valve body operates to close the flow path.

2. The gas transmission device as described in claim 1, characterized in that, The actuation component includes: An air intake plate has multiple air intake holes. An actuating area and a fixed area are defined on the plane of the air intake plate by the position of the air intake holes. The actuating area is surrounded by the air intake holes, and the fixed area is the outer periphery of the air intake holes. The piezoelectric element is disposed in the actuation area of ​​the air intake plate; An insulating frame is disposed in the fixed area of ​​the air intake plate; and A conductive frame is disposed on the insulating frame; The first through hole, the valve hole, and the air outlet are located in the actuation area surrounded by the air inlet. When the piezoelectric sheet drives the air inlet plate, the valve body is misaligned with the first through hole and the valve hole. When the airflow is in the forward direction, the valve body opens the flow path. When the airflow is in the reverse direction, the valve body closes the flow path.

3. The gas transmission device as described in claim 1, characterized in that, The ratio between the spacing and the thickness of the first plate is between 1:2 and 2:

3.

4. The gas transmission device as described in claim 1, characterized in that, The spacing is 60 micrometers.

5. The gas transmission device as described in claim 1, characterized in that, The valve plate is a flexible diaphragm.

6. The gas transmission device as claimed in claim 1, characterized in that, The valve plate is a polyimide film.

7. The gas transmission device as claimed in claim 1, characterized in that, The thickness of the valve plate is 0.4 to 0.6 micrometers.

8. The gas transmission device as claimed in claim 1, characterized in that, The diameter of the valve orifice is larger than the diameter of the air outlet orifice.

9. The gas transmission device as claimed in claim 1, characterized in that, The diameter of the valve orifice is equal to the diameter of the air outlet orifice.

10. The gas transmission device as claimed in claim 1, characterized in that, The diameter of the first through hole is the same as the diameter of the second through hole.

11. The gas transmission device as claimed in claim 2, characterized in that, The air intake is tapered.

12. The gas transmission device as claimed in claim 2, characterized in that, The number of air intake holes is even.

13. The gas transmission device as claimed in claim 12, characterized in that, There are 48 air intake holes.

14. The gas transmission device as claimed in claim 12, characterized in that, There are 52 air intake holes.

15. The gas transmission device as claimed in claim 2, characterized in that, The air intake holes are arranged in a rectangular or square shape on the air intake plate plane.

16. The gas transmission device as claimed in claim 2, characterized in that, The air intake holes are arranged in a circular shape on the plane of the air intake plate.

17. The gas transmission device as claimed in claim 2, characterized in that, The actuation region is circular, and the piezoelectric element is circular.

18. The gas transmission device as claimed in claim 1, characterized in that, The vent plate, the first plate, and the second plate are all metal plates.

19. The gas transmission device as claimed in claim 2, characterized in that, The piezoelectric element of the actuation component is maintained at an operating frequency of 21 kHz.

20. The gas transmission device as claimed in claim 1, characterized in that, The diameter of the vent is 100 micrometers or 200 micrometers, the number of vents is 49, the number of valve holes is 24, and the number of first through holes is 20.

21. The gas transmission device as claimed in claim 1, characterized in that, The vent has a diameter of 300 micrometers or 400 micrometers, there are 36 vents, there are 18 valve holes, and there are 18 first through holes.

22. The gas transmission device as claimed in claim 1, characterized in that, The diameter of the vent is 500 micrometers, the number of vents is 25, the number of valve holes is 12, and the number of first through holes is 12.

23. The gas transmission device as claimed in claim 1, characterized in that, The vent has a diameter of 600 micrometers, 700 micrometers, or 800 micrometers, and there are 25 vents, 12 valve holes, and 10 first through holes.

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