Pneumatic switch device, control system and electronic cigarette

Abstract

The present application provides a pneumatic switch device, a control system, and an electronic cigarette. The pneumatic switch device includes a housing, and an electrode plate and a pneumatic deformation member that are spaced apart in the housing. The electrode plate is provided with a working circuit, and the working circuit includes a first magnetic attraction and conduction component. The pneumatic deformation member includes a deformation portion that is disposed opposite to the electrode plate and can be driven by negative pressure to move away from the electrode plate. The deformation portion is provided with a second magnetic attraction and conduction component, and the second magnetic attraction and conduction component is magnetically attracted to the first magnetic attraction and conduction component to make the working circuit conductive. By means of the process of the deformation portion moving away from the electrode plate, the first magnetic attraction and conduction component is driven to separate from the second magnetic attraction and conduction component, thereby making the working circuit open. The deformation portion of the present application only serves to drive the second magnetic attraction and conduction component to separate from the first magnetic attraction and conduction component, and the amount of deformation of the deformation portion within a certain range does not affect the working state of the pneumatic switch device, which improves the stability of the working state of the pneumatic switch device.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular, to a pneumatic switch device, a control system, and an electronic cigarette. Background Art

[0002] An electronic cigarette is a product that simulates a cigarette. Generally, it includes an atomizer, a control module, a battery, an oil tank, and a microphone switch. The e-liquid in the oil tank is guided to the atomizer through a wick. When a user sucks the electronic cigarette, the microphone switch senses the airflow generated when the user sucks the electronic cigarette. Thus, the microphone switch is activated and sends a signal to the control module. The control module controls the atomizer to work, so that the atomizer atomizes the e-liquid. The atomized e-liquid is transmitted outside the electronic cigarette along with the airflow for the user to inhale, and the battery is used to supply power to the electronic cigarette.

[0003] Currently, the microphone switches of most electronic cigarettes are generally capacitive microphones. It mainly includes electrode plates and a conductive film that are spaced apart and oppositely arranged. The airflow causes the conductive film to deform, so that the distance between the conductive film and the electrode plate changes, thereby causing a change in the equivalent capacitance. The signal of this capacitance change is transmitted to the control module. When the change amount reaches a certain value, the control module controls the atomizer to work. However, the deformation amount of the conductive film is easily affected by factors other than airflow. For example, a higher temperature will make the conductive film more likely to deform. Therefore, even when the user does not suck the electronic cigarette, the external airflow may cause the conductive film to deform. Since a small deformation amount of the conductive film will also cause a change in the capacitance value, the external airflow often easily causes the components inside the electronic cigarette to start working automatically; for another example, during the assembly of the capacitive microphone, it is possible to touch the conductive film, thereby causing the conductive film to deform in advance, which will affect the sensitivity of the internal components of the electronic cigarette to start working later and cannot meet the preset design requirements. In summary, the probability of the capacitive microphone having an unstable working state is relatively high.

[0004] Therefore, it is necessary to provide a technical solution with a relatively stable working state. Summary of the Invention

[0005] The present invention provides a pneumatic switch device, a control system, and an electronic cigarette, and their working states are relatively stable.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A pneumatic switch device includes a housing, an electrode plate and a pneumatic deformation member that are spaced apart and disposed in the housing; the electrode plate is provided with a working circuit, and the working circuit includes a first magnetic attraction conductive component; the pneumatic deformation member includes a deformation portion that is disposed opposite to the electrode plate and can be driven by negative pressure to move away from the electrode plate; the deformation portion is provided with a second magnetic attraction conductive component, and the second magnetic attraction conductive component magnetically attracts the first magnetic attraction conductive component to make the working circuit conductive; by the process of the deformation portion moving away from the electrode plate, the first magnetic attraction conductive component and the second magnetic attraction conductive component are driven to separate, so that the working circuit is opened.

[0008] In one embodiment, the first magnetic attraction conductive component includes a positive magnetic attraction terminal and a negative magnetic attraction terminal that can be magnetically attracted to the second magnetic attraction conductive component, and the positive magnetic attraction terminal and the negative magnetic attraction terminal can be conductively connected by the second magnetic attraction conductive component.

[0009] In one embodiment, the positive magnetic attraction terminal and the negative magnetic attraction terminal are symmetrically disposed on the side surface of the electrode plate facing the deformation portion.

[0010] In one embodiment, the housing is a cylindrical structure; the pneumatic deformation member is disposed in the housing to divide the interior of the housing into a first space and a second space arranged along the axial direction of the housing; the deformation portion is located between the first space and the second space, and the negative pressure formed by the pressure difference between the first space and the second space is used to drive the deformation portion away from the electrode plate.

[0011] In one embodiment, the pneumatic deformation member includes an annular base, and the outer peripheral side wall of the annular base abuts against the inner wall of the housing; the deformation portion is a deformation layer that extends radially along the annular base and the edge is connected to the annular base.

[0012] In one embodiment, the second magnetic attraction conductive component includes a conductive magnetic attraction sheet, and a plug-in block protrudes from the back surface of the magnetic attraction sheet; the deformation layer is provided with a plug-in hole; the plug-in block is inserted into the plug-in hole from the side of the deformation layer facing the electrode plate.

[0013] In one embodiment, the plug-in block has a columnar structure extending along the axial direction of the magnetic attraction sheet, and an annular groove surrounding the axis of the plug-in block is formed on the side wall of the plug-in block; the deformation layer is provided with a plug-in hole for the plug-in block to be inserted; when the plug-in block is inserted into the plug-in hole, the edge of the plug-in hole is located in the annular groove.

[0014] In one embodiment, one end of the housing is open and the other end is closed; the electrode plate is disposed at the open end of the housing to close the end; the electrode plate is provided with a first air hole; the closed end of the housing is provided with a second air hole.

[0015] A control system is applied to an electronic cigarette. The control system includes an atomization module, a control module, a power supply module, and the above pneumatic switch device. The power supply module, the atomization module, and the working circuit are respectively electrically connected to the control module; the power supply module is used to supply power to the atomization module, the control module, and the working circuit; when the working circuit is in a conducting state, the control module controls the atomization module to stop working, and when the working circuit is in an open state, the control module controls the atomization module to start working.

[0016] An electronic cigarette includes the above control system.

[0017] The beneficial effects of the present invention are:

[0018] The pneumatic switch device of the present application drives the deformation part away from the electrode plate by negative pressure, so that the second magnetic adsorption conductive component is separated from the first magnetic adsorption conductive component, so that the working circuit is in an open state. When the negative pressure disappears, the second magnetic adsorption conductive component can be automatically adsorbed to the first magnetic adsorption conductive component under the action of magnetic attraction, so that the working circuit is in a conducting state. The control module of the electronic cigarette can promote the overall working state of the electronic cigarette according to the state corresponding to the conducting or open state of the working circuit. Compared with the prior art, the deformation part of the present application only plays a role in driving the second magnetic adsorption conductive component to separate from the first magnetic adsorption conductive component. The magnitude of the deformation of the deformation part within a certain range does not affect the working state of the pneumatic switch device. Even if the deformation part deforms to a certain extent, as long as the second magnetic adsorption conductive component still magnetically adsorbs to the first magnetic adsorption conductive component, the working state of the pneumatic switch device will not change. Therefore, the working state of the pneumatic switch device is relatively stable. Description of the Drawings

[0019] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the following specific embodiments, but should not limit the present invention. In the drawings,

[0020] Figure 1 is a logic block diagram of the control system according to an embodiment of the present invention;

[0021] Figure 2 is a three-dimensional structural schematic diagram of the pneumatic switch device according to an embodiment of the present invention;

[0022] Figure 3 is a cross-sectional structural schematic diagram of the pneumatic switch device according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic structural diagram of the bottom view of the pneumatic switch device according to an embodiment of the present invention.

[0024] Explanation of the reference numerals in the drawings:

[0025] 10. Housing; 11. Second air hole; 12. First space; 13. Second space;

[0026] 20. Electrode plate; 21. First air hole;

[0027] 30. First magnetic attraction and conductive component; 31. Positive magnetic attraction terminal; 32. Negative magnetic attraction terminal;

[0028] 40. Pneumatic deformation component; 41. Ring-shaped base; 42. Deformation part; 421. Insertion hole;

[0029] 50. Second magnetic attraction and conductive component; 51. Magnetic attraction sheet; 52. Insertion block;

[0030] 60. Working circuit;

[0031] 70. Chip board;

[0032] 80. Power supply module;

[0033] 90. Atomization module. Specific embodiments

[0034] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present invention, and are not used to limit the present invention.

[0035] This embodiment discloses an electronic cigarette, which can be a disposable electronic cigarette or a refillable electronic cigarette. The electronic cigarette includes a control system for controlling the overall working process of the electronic cigarette.

[0036] Please refer to Figure 1 , the control system includes a pneumatic switch device, an atomization module 90, a control module, and a power supply module 80. The power supply module 80, the atomization module 90, and the pneumatic switch device are respectively electrically connected to the control module. Among them, the control module may include a chip board 70, and the chip board 70 may be a commonly used chip board 70 for electronic cigarettes on the market, and the specific model of the chip board 70 is not limited herein. The pneumatic switch device can be electrically connected to the chip board 70 through a wire.

[0037] The atomization module 90 may include an atomization core, and the atomization core includes a heating element. The heating element may be a heating wire, a ceramic heating tube, or other heating components. The conductive pins of the heating element are electrically connected to the chip board 70 through wires, or the conductive pins of the heating element are directly electrically connected to the chip board 70. The e-liquid in the e-liquid reservoir is guided to the heating element through the wicking cotton so that the e-liquid can be atomized by the atomization core.

[0038] The power supply module 80 is used to supply power to the atomization module 90, the control module, and the pneumatic switch device. Specifically, the power supply module 80 may include a rechargeable and reusable battery. The two poles of the battery are connected to the chip board 70 through wires, and the battery supplies power to the atomization module 90 and the pneumatic switch device through the chip board 70.

[0039] In an application scenario, the pneumatic switch device is arranged on the airflow path of the electronic cigarette. When the user inhales the electronic cigarette, an airflow is generated inside the electronic cigarette, and the airflow triggers a change in the working state of the pneumatic switch device. The chip board 70 controls the atomization module 90 to start or stop atomizing the e-liquid according to the change in the working state of the pneumatic switch device.

[0040] In the prior art, the pneumatic switch device of an electronic cigarette is generally a capacitive microphone head. The capacitive microphone head includes electrode plates 20 and a conductive film that are spaced apart and oppositely arranged. When the user inhales the electronic cigarette, the airflow enters the electronic cigarette and drives the conductive film, causing the conductive film to deform. This results in a change in the distance between the conductive film and the electrode plate 20, thereby causing an equivalent capacitance change. The capacitive microphone head switch feeds back the capacitance change signal to the control board of the electronic cigarette. When the capacitance change reaches a certain level, the control board controls the atomizer of the electronic cigarette to start atomizing the e-liquid. Since the deformation amount of the conductive film is easily affected by external factors. For example, when the temperature is relatively high, the conductive film is prone to deformation, which will cause the working state of the capacitive microphone head switch to be unstable. Even a small airflow can cause the conductive film to deform, resulting in the atomizer of the electronic cigarette being prone to automatic startup when the electronic cigarette is not in use. This phenomenon has a relatively high probability of occurring when the resistance value of the heating element is small, especially for heating elements with a resistance value below 0.7 ohms, which generate more heat, causing the temperature inside the electronic cigarette to be relatively high and the conductive film to be more prone to deformation. In addition to temperature affecting the deformation amount of the conductive film, during the assembly process of the capacitive microphone head, its conductive film is also easily touched and deformed. This will cause the shape of the conductive film of the capacitive microphone head to have changed after the assembly is completed, which will affect the subsequent working sensitivity of the capacitive microphone head and further affect the working stability of the capacitive microphone head. In summary, the capacitive microphone head in the prior art mainly changes its working state through the deformation amount of its conductive film. Since the deformation amount of the conductive film is easily interfered by external factors, the capacitive microphone head is prone to the phenomenon of unstable working state.

[0041] To solve the above problems, the following solution is adopted in this embodiment:

[0042] Please refer to Figure 1 and Figure 2 , in this embodiment, the pneumatic switch device includes a housing 10, and an electrode plate 20 and a pneumatic deformation member 40 that are spaced apart and arranged in the housing 10. The electrode plate 20 is provided with a working circuit 60, and the working circuit 60 includes a first magnetic attraction conductive component 30; the pneumatic deformation member 40 includes a deformation part 42 that is disposed opposite to the electrode plate 20 and can be driven by negative pressure to move away from the electrode plate 20; the deformation part 42 is provided with a second magnetic attraction conductive component 50, and the second magnetic attraction conductive component 50 is magnetically attracted to the first magnetic attraction conductive component 30 to make the working circuit 60 conductive; by the process of the deformation part 42 moving away from the electrode plate 20, the first magnetic attraction conductive component 30 is driven to separate from the second magnetic attraction conductive component 50, so that the working circuit 60 is opened.

[0043] Compared with the prior art, the deformation part 42 in this embodiment only serves to drive the second magnetic attraction conductive component 50 to separate from the first magnetic attraction conductive component 30. The amount of deformation of the deformation part 42 within a certain range will not affect the working state of the pneumatic switch device. Even if the deformation part 42 is deformed to a certain extent, as long as the second magnetic attraction conductive component 50 is still magnetically attracted to the first magnetic attraction conductive component 30, the working state of the pneumatic switch device will not change. Therefore, the working state of the pneumatic switch device is more stable.

[0044] In this embodiment, the following solution is adopted to achieve negative pressure driving of the deformation part 42:

[0045] Please refer to Figures 2 - 4 , in this implementation, the housing 10 is of a cylindrical structure, such as a cylindrical tube, a prismatic tube, etc. The pneumatic deformation member 40 is disposed inside the housing 10 to divide the inside of the housing 10 into a first space 12 and a second space 13 arranged along the axial direction of the housing 10; the deformation part 42 is located between the first space 12 and the second space 13, and the negative pressure formed by the air pressure difference between the first space 12 and the second space 13 is used to drive the deformation part 42 to move away from the electrode plate 20. Specifically, under the barrier of the pneumatic deformation member 40, the first space 12 and the second space 13 are in an air-isolated state, and the air in the first space 12 and the air in the second space 13 cannot flow through the pneumatic deformation member 40 to achieve mutual circulation. When the user inhales the electronic cigarette, part of the air in the second space 13 is carried out by the airflow. Therefore, the air pressure in the second space 13 is lower than the air pressure in the first space 12, so that a negative pressure can be generated, and the deformation part 42 is squeezed by the air pressure to move the deformation part 42 towards the second space 13.

[0046] Further, one end of the housing 10 is open and the other end is closed. The electrode plate 20 is disposed at the open end of the housing 10. Specifically, the electrode plate 20 is disposed inside the open end of the housing 10. The edge contour shape of the electrode plate 20 is adapted to the port shape of the open end of the housing 10. When the electrode plate 20 is disposed inside the open end of the housing 10, the circumferential side wall of the electrode plate 20 abuts against the open end of the housing 10, thereby closing the end. Since the electrode plate 20 is disposed inside the housing 10, the probability of the electrode plate 20 being touched and dropped can be reduced, and the appearance of the housing 10 can be made neater. The first space 12 is located between the electrode plate 20 and the pneumatic deformation member 40. In order to allow the air in the first space 12 to circulate with the outside air, the electrode plate 20 is provided with two first air holes 21 for air circulation. Of course, in other embodiments, the number of the first air holes 21 can be one or more. The second space 13 is located between the end wall of the closed end of the housing 10 and the pneumatic deformation member 40. In order to allow the second space 13 to circulate with the outside air, the end wall of the closed end of the housing 10 is provided with second air holes 11. Specifically, the number of the second air holes 11 is multiple, and all the second air holes 11 are distributed on the end wall of the closed end of the housing 10.

[0047] Next, the mechanism of the pneumatic deformation member 40 of this embodiment will be further described.

[0048] The pneumatic deformation member 40 includes an annular base 41. The shape and size of the annular base 41 are both adapted to the inside of the housing 10. When the annular base 41 is disposed inside the housing 10, the outer circumferential side wall of the annular base 41 abuts against the inner wall of the housing 10. Preferably, the annular base 41 can be a silicone base or a base made of other soft materials with good elasticity. The annular base 41 is in interference fit with the inside of the housing 10. Since the annular base 41 has a certain elasticity, the annular base 41 can abut against the inner wall of the housing 10 more tightly. On the one hand, this can improve the airtightness, and on the other hand, the annular base 41 can be more firmly limited inside the housing 10. The deformation part 42 is a deformation layer extending radially along the annular base 41 and having an edge connected to the annular base 41. Specifically, the deformation layer is a silicone film, and the deformation layer is integrally formed with the annular base 41. In this way, the pneumatic deformation member 40 of this embodiment has a relatively simple structure and is easy to manufacture.

[0049] Next, the structures and installation methods of the first magnetic attraction and conduction assembly 30 and the second magnetic attraction and conduction assembly 50 of this embodiment will be further described.

[0050] In this embodiment, the first magnetic conductive component 30 includes a positive magnetic terminal 31 and a negative magnetic terminal 32 that can be magnetically attracted to the second magnetic conductive component 50. The positive magnetic terminal 31 and the negative magnetic terminal 32 can be electrically connected through the second magnetic conductive component 50. Specifically, both the positive magnetic terminal 31 and the negative magnetic terminal 32 are in a semi-circular shape. The positive magnetic terminal 31 and the negative magnetic terminal 32 are symmetrically and spaced on the side of the electrode plate 20 facing the deformation part 42. Among them, both the positive magnetic terminal 31 and the negative magnetic terminal 32 are conductive magnets, such as neodymium iron boron magnets, samarium cobalt magnets, alnico magnets, iron chromium cobalt magnets, etc. In other embodiments, the positive magnetic terminal 31 can be composed of a magnet and a conductive member. The magnet is used to magnetically attract the second magnetic conductive component 50, and the conductive member is used to abut and electrically connect with the second magnetic conductive component 50. The structure of the negative magnetic terminal 32 is the same. Of course, in another embodiment, only one of the positive magnetic terminal 31 and the negative magnetic terminal 32 needs to be provided with a magnet to magnetically attract the second magnetic conductive component 50.

[0051] Furthermore, in this embodiment, both the positive magnetic terminal 31 and the negative magnetic terminal 32 are electrically connected to the working circuit 60 on the electrode plate 20. When the positive magnetic terminal 31 and the negative magnetic terminal 32 are magnetically attracted to the second magnetic conductive component 50, the working circuit 60 is in a conducting state. When the positive magnetic terminal 31 and the negative magnetic terminal 32 are separated from the second magnetic conductive component 50, the working circuit 60 is in an open state. The working circuit 60 is electrically connected to the chip board 70 of the control module through a wire. When the working circuit 60 is in a conducting state, there is current passing through the working circuit 60, and the chip board 70 receives a corresponding signal that there is current passing through the working circuit 60. At this time, the chip board 70 stops supplying current to the heating element of the atomizing core, so that the heating element stops heating, and at this time the electronic cigarette is in a stopped working state. When using the electronic cigarette, the airflow flowing through the inside of the electronic cigarette causes a pressure difference between the first space 12 and the second space 13, thereby driving the deformation part 42 away from the electrode plate 20 through negative pressure. The deformation part 42 drives the second magnetic conductive component 50 to separate from the positive magnetic terminal 31 and the negative magnetic terminal 32. At this time, the working circuit 60 is in an open state and there is no current passing through the working circuit 60. At this time, the chip board 70 of the control module receives a corresponding signal that there is no current passing through the working circuit 60, and the chip board 70 controls the heating element to start heating the e-liquid.

[0052] In the aforementioned scheme, since both the positive magnetic terminal 31 and the negative magnetic terminal 32 are connected to the second magnetic conductive component 50 by magnetic attraction, the connection is relatively reliable. When the electronic cigarette is not in use, the external airflow is difficult to drive the deformation part 42, thereby preventing the deformation part 42 from driving the second magnetic conductive component 50 to separate from the positive magnetic terminal 31 and the negative magnetic terminal 32. In this way, the working state stability of the pneumatic switch device is improved, thereby reducing the probability of the heating element of the electronic cigarette automatically heating the tobacco oil when the electronic cigarette is not in use.

[0053] Next, the structure and installation method of the second magnetic conductive component 50 of this embodiment are further described.

[0054] In the present embodiment, the second magnetic conductive component 50 includes a conductive magnetic sheet 51, which is a conductive magnet, such as a neodymium iron boron magnet, a samarium cobalt magnet, an aluminum nickel cobalt magnet, an iron chromium cobalt magnet, etc.; a plug-in block 52 protrudes from the back of the magnetic sheet 51; the deformation layer is provided with a plug-in hole 421, preferably, the plug-in hole 421 is provided in the middle part of the deformation layer; the plug-in block 52 is inserted into the plug-in hole 421 from the deformation layer toward the electrode plate 20. In this way, the magnetic sheet 51 is assembled on the deformation layer, and the assembly process is simple and quick. Among them, due to the gravity of the magnetic sheet 51 and the magnetic attraction between it and the first magnetic conductive component 30, the deformation layer is pulled, which will cause a certain deformation of the deformation layer, so that the deformation layer presents a concave shape as shown in the figure.

[0055] In other embodiments, the plug-in block 52 is a columnar structure extending axially along the magnetic sheet 51, such as a cylindrical structure, a prismatic structure, etc., and the side wall of the plug-in block 52 is provided with an annular groove surrounding the axis of the plug-in block 52; the deformation layer is provided with a plug-in hole 421 for the plug-in block 52 to be inserted; when the plug-in block 52 is inserted into the plug-in hole 421, the edge of the plug-in hole 421 is located in the annular groove, and under the limitation of the annular groove, the plug-in block 52 will not easily detach from the plug-in hole 421, thereby improving the connection reliability between the magnetic sheet 51 and the deformation layer.

[0056] As long as it does not violate the creative ideas of the present invention, any combination of the various embodiments of the present invention shall be regarded as the contents disclosed by the present invention; within the technical concept of the present invention, any combination of various simple modifications of the technical scheme and different embodiments that does not violate the creative ideas of the present invention shall be within the protection scope of the present invention.

Claims

1. A pneumatic switch device, characterized in that, it includes a housing, and an electrode plate and a pneumatic deformation member that are spaced apart in the housing; the electrode plate is provided with a working circuit, and the working circuit includes a first magnetic attraction conductive component; the pneumatic deformation member includes a deformation part that is arranged opposite to the electrode plate and can be driven by negative pressure to move away from the electrode plate; the deformation part is provided with a second magnetic attraction conductive component, and the second magnetic attraction conductive component magnetically attracts the first magnetic attraction conductive component to make the working circuit conductive; by the process of the deformation part moving away from the electrode plate, the first magnetic attraction conductive component and the second magnetic attraction conductive component are driven to separate, so that the working circuit is opened. The first magnetic attraction conductive component includes a positive magnetic attraction terminal and a negative magnetic attraction terminal that can be magnetically attracted to the second magnetic attraction conductive component, and the positive magnetic attraction terminal and the negative magnetic attraction terminal can be conductively connected through the second magnetic attraction conductive component.

2. The pneumatic switch device according to claim 1, characterized in that, the positive magnetic attraction terminal and the negative magnetic attraction terminal are symmetrically arranged on the side surface of the electrode plate facing the deformation part.

3. The pneumatic switch device according to claim 1, characterized in that, the housing is of a cylindrical structure; the pneumatic deformation member is arranged in the housing to divide the interior of the housing into a first space and a second space arranged along the axial direction of the housing; the deformation part is located between the first space and the second space, and the negative pressure formed by the pressure difference between the first space and the second space is used to drive the deformation part away from the electrode plate.

4. The pneumatic switch device according to claim 3, characterized in that, the pneumatic deformation member includes an annular base, and the outer peripheral side wall of the annular base abuts against the inner wall of the housing; the deformation part is a deformation layer that extends radially along the annular base and whose edge is connected to the annular base.

5. The pneumatic switch device according to claim 4, characterized in that, the second magnetic attraction conductive component includes a conductive magnetic attraction sheet, and a plug-in block protrudes from the back surface of the magnetic attraction sheet; the deformation layer is provided with a plug-in hole; the plug-in block is inserted into the plug-in hole from the side of the deformation layer facing the electrode plate.

6. The pneumatic switch device according to claim 5, characterized in that, the plug-in block is in a columnar structure extending along the axial direction of the magnetic attraction sheet, and an annular groove surrounding the axis of the plug-in block is opened on the side wall of the plug-in block; the deformation layer is provided with a plug-in hole for the plug-in block to be inserted; when the plug-in block is inserted into the plug-in hole, the edge of the plug-in hole is located in the annular groove.

7. The pneumatic switch device according to claim 5, characterized in that, one end of the housing is open and the other end is closed; the electrode plate is arranged at the open end of the housing to close the end; the electrode plate is provided with a first air hole; the closed end of the housing is provided with a second air hole.

8. A control system, which is applied to an electronic cigarette, characterized in that, The control system includes an atomization module, a control module, a power supply module, and the pneumatic switch device according to any one of claims 1-7. The power supply module, the atomization module, and the working circuit are respectively electrically connected to the control module. The power supply module is used to supply power to the atomization module, the control module, and the working circuit. When the working circuit is in a conducting state, the control module controls the atomization module to stop working. When the working circuit is in an open state, the control module controls the atomization module to start working.

9. An electronic cigarette, characterized in that it includes the control system according to claim 8.

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