CN210869865U

CN210869865U - Pneumatic switch of electron cigarette, power supply unit and electron cigarette of electron cigarette

Info

Publication number: CN210869865U
Application number: CN201920715465.3U
Authority: CN
Inventors: 欧阳俊伟
Original assignee: Shenzhen IVPS Technology Co Ltd
Current assignee: Shenzhen IVPS Technology Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-06-30
Anticipated expiration: 2029-05-16
Also published as: EP3742465A1; US20200359697A1; EP3742465B1

Abstract

The utility model discloses a pneumatic switch and use this pneumatic switch's power supply unit and use this power supply unit's electron cigarette, wherein, this electron cigarette's pneumatic switch includes the main part, the main part is equipped with the induction zone, the induction zone is triggered when in the negative pressure state, its characterized in that, pneumatic switch still includes flexible protecting film, the protecting film install in the main part, and with the main part at least be equipped with the airtight shroud of surface in induction zone, so that the first cavity of enclosing between the surface that the protecting film and the main part were equipped with the induction zone; the protective film deviates from the main body and deforms under the action of external suction force, so that the airflow part in the first cavity flows to the space where the protective film deforms. The utility model discloses technical scheme prevents effectively that tobacco juice and comdenstion water from permeating to pneumatic switch in, produces the phenomenon production of damage to pneumatic switch.

Description

Pneumatic switch of electron cigarette, power supply unit and electron cigarette of electron cigarette

Technical Field

The utility model relates to a pneumatic switch of electron cigarette, applied this pneumatic switch's power supply unit of electron cigarette and applied this power supply unit's electron cigarette.

Background

Along with the gradual development of the electronic cigarette industry, small-size electronic cigarette is more and more liked by the consumer, in order to reduce the product volume, adopts pneumatic switch response user's suction to trigger usually, makes the electronic cigarette become the smog with the cigarette liquid atomizing of storage and supplies the user's suction.

However, the pneumatic switch requires communication with the airway of the e-cigarette puff to be triggered by the user when the puff is taken. When the cigarette is smoked for a long time, the stored cigarette liquid and the condensed water generated in the atomization process can be gathered in the cavity of the electronic cigarette, and the pneumatic switch surface of the electronic cigarette is usually provided with dustproof cloth, so that the cigarette liquid and the condensed water are easily adsorbed, the sensitivity is reduced, and even the phenomenon of short circuit damage is generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pneumatic switch aims at preventing that tobacco juice and comdenstion water from permeating to pneumatic switch in, produces the phenomenon production of damage to pneumatic switch.

In order to achieve the above object, the utility model provides a pneumatic switch, comprising a main body, the main part is equipped with the induction zone, the induction zone is triggered when being in the negative pressure state. The pneumatic switch also comprises a flexible protective film, the protective film is arranged on the main body, and at least an outer surface of the main body, which is provided with an induction area, is hermetically covered, so that a first cavity is enclosed between the protective film and the surface of the main body, which is provided with the induction area;

the protective film deviates from the main body and deforms under the action of external suction force, so that the airflow part in the first cavity flows to the space where the protective film deforms.

Optionally, the first cavity is a closed cavity.

Optionally, one of the protective film and the main body is provided with a supporting member, and when the protective film is mounted on the main body, two sides of the supporting member respectively abut against the outer surface of the main body and the surface of the protective film facing the main body, so that the protective film and the main body are arranged at intervals.

Optionally, the supporting member is annularly disposed, and an area enclosed by the inner annular surface of the supporting member is greater than or equal to an area of the sensing area, so that when the protective film is mounted on the main body, the sensing area is accommodated in the area enclosed by the inner annular surface of the supporting member, and the protective film not covered by the supporting member forms an elastic deformation area.

Optionally, the area enclosed by the inner annular surface of the support is larger than the area of the sensing region.

Optionally, the area enclosed by the induction area and the inner annular surface is formed into a circle, the diameter interval of the induction area is 2mm-3mm, and the diameter interval of the inner annular surface of the support member is 2mm-6 mm.

Optionally, the diameter of the sensing region is 2.5mm, and the diameter of the inner annular surface of the support member is 3mm-5 mm.

Optionally, the thickness of the protective film at the elastic deformation region is 0.03mm-0.5 mm.

Optionally, the support is integrally formed with the protective film.

Optionally, a support is formed on the surface of the protective film facing the main body; or, the protective film is formed on the inner ring surface of the support.

Optionally, the main body is provided with a first surface and surfaces adjacent to the first surface, the surfaces enclose a second peripheral surface of the main body, the sensing area is located on the first surface, and the supporting member and the protective film are sequentially arranged outside the first surface;

the outer ring surface of the supporting piece is also provided with a sealing part in an extending mode, and the sealing part is elastically sleeved on the second peripheral surface in a sealing mode.

Optionally, the pneumatic switch further comprises a pressing ring, one end of the pressing ring is pressed to the edge of one side, away from the main body, of the protective film, and the other end of the pressing ring is sleeved with the main body, so that the edge of the protective film is pressed to the main body.

Optionally, one side of the supporting piece, which faces away from the protective film, is further provided with an adhesive layer, and when the supporting piece is installed on the main body, the adhesive layer adheres the outer surface of the main body and the supporting piece in a sealing manner.

Optionally, the main part is provided with an inner cavity and an air outlet, the main part is provided with a trigger assembly in the inner cavity, the trigger assembly is triggered in a negative pressure state, the air outlet is communicated with the outside to form the sensing area, and when negative pressure is formed outside, air flow in the inner cavity can flow out through the air outlet.

Optionally, the trigger assembly includes a conductive plate, a floating diaphragm and a circuit board, which are sequentially arranged from being close to the air outlet to being far away from the air outlet, the conductive plate is electrically connected with the circuit board, the conductive plate is provided with at least one air passing hole communicated with the air outlet, and the floating diaphragm is contacted with or separated from the conductive plate under the action of air flow, so that the conductive plate generates an electrical signal.

The utility model also provides a power supply unit of electron cigarette, including the pneumatic switch of electron cigarette, power supply unit is equipped with the response air flue with external intercommunication, the pneumatic switch holding in the power supply unit, and with power supply unit establishes electric connection, just one side that the pneumatic switch was equipped with the protecting film appears in the response air flue. The pneumatic switch comprises a main body, wherein the main body is provided with an induction area, and the induction area is triggered when being in a negative pressure state. The pneumatic switch also comprises a flexible protective film, the protective film is arranged on the main body, and at least an outer surface of the main body, which is provided with an induction area, is hermetically covered, so that a first cavity is enclosed between the protective film and the surface of the main body, which is provided with the induction area;

Optionally, the pneumatic switch is accommodated in the sensing air passage, one side of the pneumatic switch provided with the protective film faces one side of the sensing air passage communicated with the outside, and the periphery of the pneumatic switch is in sealed abutting joint with the sensing air passage.

The utility model also provides an electron cigarette, power supply unit including atomizing device and electron cigarette, power supply unit is used for doing the atomizing device power supply. The power supply device comprises a pneumatic switch of the electronic cigarette, the power supply device is provided with an induction air passage communicated with the outside, the pneumatic switch is accommodated in the power supply device and is electrically connected with the power supply device, and one side of the pneumatic switch, which is provided with a protective film, is exposed in the induction air passage. The pneumatic switch comprises a main body, wherein the main body is provided with an induction area, and the induction area is triggered when being in a negative pressure state. The pneumatic switch also comprises a flexible protective film, the protective film is arranged on the main body, and at least an outer surface of the main body, which is provided with an induction area, is hermetically covered, so that a first cavity is enclosed between the protective film and the surface of the main body, which is provided with the induction area;

Optionally, the atomization device is provided with at least one air inlet, and the at least one air inlet is communicated with the air passage inside the atomization device and the induction air passage.

Optionally, at least one air inlet is directly opposite to the induction air channel of the power supply device.

Optionally, the atomization device comprises at least two air inlets, and when the atomization device is installed in the power supply device, one of the at least two air inlets is communicated with an external air passage, and a closed air passage is formed between the other air inlet and the induction air passage, so that the air flow in the induction air passage flows out only through the air inlets.

The utility model discloses technical scheme's pneumatic switch, this technical scheme need not to cover the outer dustproof cloth of induction zone in traditional pneumatic switch, prevents effectively that tobacco juice and comdenstion water from being adsorbed by dustproof cloth and leading to the phenomenon production that is difficult to the clearance. Simultaneously, through being equipped with the protecting film to airtight shroud pneumatic switch main part is equipped with the induction zone, effectively prevents in long-term use, and tobacco juice and comdenstion water hydrops are in the induction zone, and follow the induction zone infiltrates inside pneumatic switch, produces the phenomenon of damage to triggering the subassembly. Meanwhile, the protective film is flexible and surrounds a first cavity with one side of the pneumatic switch main body, which is provided with the sensing area, so that when a user sucks, attraction is generated on the protective film, and the protective film deviates from the pneumatic switch main body and deforms. And the space generated between the deformed protective film and the main body is increased. The protective film covers the sensing area in a sealing mode, so that the airflow value in the first cavity is constant, and when the airflow value is constant, the volume of the first cavity is increased, and therefore negative pressure is generated to trigger the sensing area, and the electronic cigarette can work normally.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic sectional view of the connection structure of the pneumatic switch of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an exploded view of the pneumatic switch of the present invention;

fig. 4 is a schematic sectional view of a connection structure of a pneumatic switch according to another embodiment of the present invention;

FIG. 5 is a schematic sectional view of a connection structure of the protecting film with a sealing portion sleeved on the main body according to an embodiment of the present invention;

fig. 6 is a schematic view of a cross-sectional view of the connection structure of the electronic cigarette.

The reference numbers illustrate:

the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model provides a pneumatic switch 100, thereby pneumatic switch 100 is applied to electron cigarette or other equipment that change and trigger through the response air current. The utility model discloses use the electron cigarette as the example. The electronic cigarette comprises an atomizing device 300 pre-filled with cigarette liquid and a power supply device 200 for supplying power to the atomizing device 300, wherein the power supply device 200 is provided with an induction air channel 210, an air channel switch is installed in the power supply device 200 and is electrically connected with the power supply device 200, and at least part of an induction area of a pneumatic switch 100 is exposed in the induction air channel 210 and is used for inducing the air pressure state in the induction air channel 210; the atomization device 300 is installed in the power supply device 200, and is electrically connected to the power supply device 200. The atomization device 300 is provided with at least one air inlet 310, and when the atomization device 300 is installed in the power supply device 200, the at least one air inlet 310 is communicated with the induction air channel 210. When the user draws, airflow within the sensing airway 210 flows out and into the interior of the aerosolization device 300 through the air inlet 310. At this time, the sensing area of the air passage switch senses the negative pressure generated by the airflow flowing out in the sensing air passage 210, triggers the pneumatic switch 100, and transmits a signal to the power supply device 200, so as to control the heating element in the atomizing device 300 to generate heat 320 to atomize the pre-stored smoke liquid, so that the smoke liquid generates smoke for the user to suck.

Referring to fig. 1 to 6, the pneumatic switch 100 includes a main body 10, the main body 10 is provided with a sensing area, and the sensing area is triggered when in a negative pressure state, and is characterized in that the pneumatic switch 100 further includes a flexible protective film 50, the protective film 50 is mounted on the main body 10, and at least an outer surface of the main body 10 provided with the sensing area is hermetically covered, so that a first cavity 40 is defined between the protective film 50 and a surface of the main body 10 provided with the sensing area; the protective film 50 deforms away from the main body 10 under the action of external suction force, so that part of the airflow in the first cavity 40 flows into a space generated by deformation of the protective film 50.

The utility model discloses technical scheme's pneumatic switch 100, this technical scheme need not to cover the outer dustproof cloth of induction zone in traditional pneumatic switch 100, prevents effectively that tobacco juice and comdenstion water from being adsorbed by dustproof cloth and leading to the phenomenon production that is difficult to the clearance. Simultaneously, through being equipped with protecting film 50 to airtight shroud pneumatic switch 100 main part 10 is equipped with the induction zone, effectively prevents in long-term use, and tobacco juice and comdenstion water hydrops are in the induction zone, and follow the induction zone infiltrates inside pneumatic switch 100, produces the phenomenon of damage to triggering the subassembly 30. Meanwhile, the protective film 50 is flexible and encloses a first cavity 40 with one side of the main body 10 of the pneumatic switch 100, which is provided with a sensing area, so that when a user sucks, attraction is generated on the protective film 50, and the protective film 50 deviates from the main body 10 of the pneumatic switch 100 and deforms. And the space generated between the deformed pellicle 50 and the main body 10 increases. The protective film 50 covers the sensing area in a sealing manner, so that the airflow value in the first cavity 40 is constant, and when the airflow value is constant, the volume of the first cavity 40 is increased, so that negative pressure is generated to trigger the sensing area, and the electronic cigarette can work normally.

Specifically, as shown in fig. 1 or fig. 3, in the embodiment of the present invention, the main body 10 is provided with an inner cavity 13 and an air outlet 111, and the main body 10 is provided with a trigger assembly 30 in the inner cavity 13. The air outlet 111 is communicated with the inner cavity 13 and the outside, so that the air flow in the inner cavity 13 can flow out along the air outlet 111, and the air outlet 111 forms the sensing region on the surface of the main body 10. The protective film 50 is hermetically covered on the surface of the main body 10 where the air outlet 111 is formed. When the user sucks, negative pressure is formed when the air flow in the sensing airway 210 is drawn out, so that the protection film 50 is deformed away from the main body 10 under the suction force. At this time, the volume of the first cavity 40 enclosed between the protective film 50 and the main body 10 is increased, and the protective film 50 and the main body 10 are hermetically connected, so that the air flow rate in the first cavity 40 and the inner cavity 13 is constant, and when the volume of the first cavity 40 is increased, the air flow in the inner cavity 13 is supplemented into the aperture generated after the deformation of the first cavity 40, so that the air pressure value is reduced. Thereby putting the trigger assembly 30 in the inner cavity 13 in a negative pressure state, and triggering the trigger assembly 30.

Specifically, as shown in fig. 1 to 4, in the embodiment of the present invention, the triggering component 30 includes a conductive sheet 31, a floating diaphragm 32 and a circuit board 33, which are arranged in the inner cavity 13 in sequence from being close to the air outlet 111 to being far away from the air outlet 111, the conductive sheet 31 is electrically connected to the circuit board 33, and is provided with at least one air passing hole 311 communicated with the air outlet 111. When a user sucks, the airflow in the inner cavity 13 is supplemented into the first cavity 40 through the air passing holes 311 and the air outlet holes 111, and meanwhile, the floating diaphragm 32 swings towards the conducting strip 31 under the action of the airflow, so that part of the floating diaphragm is contacted with or separated from the conducting strip 31, and the conducting strip 31 generates an electric signal and transmits the electric signal to the circuit board 33.

Specifically, as shown in fig. 1 to fig. 3, in the embodiment of the present invention, the principle of the electric signal generation may be a frictional static charge, for example, the floating diaphragm 32 is an insulating diaphragm, and vibrates under the action of the air flow to generate a static charge by friction between the conductive sheets 31, and then is transmitted to the circuit board 33 through the conductive sheets 31. Meanwhile, the distance generated by the electrical signal may also be an electrical circuit, for example, the floating diaphragm 32 is a thin film made of an electrically conductive material, the main body 10 further includes a conductive ring 35 and an insulating ring 34, the conductive ring 35 is disposed between the floating diaphragm 32 and the circuit board 33 and electrically connects the floating diaphragm 32 and the circuit board 33, and the insulating ring 34 is disposed between the floating diaphragm 32 and the conductive plate 31 to separate the two. When a user sucks, the floating membrane 32 deforms under the action of the air flow to be in contact with the conductive sheet 31 from the hollow part in the middle of the insulating ring 34, so that the conductive sheet 31 and the conductive ring 35 are in circuit conduction, and an electric signal is generated.

Further, as shown in fig. 1 or fig. 4, in the embodiment of the present invention, in order to facilitate the floating diaphragm 32 to vibrate, an air supply hole 331 communicating with the outside may be disposed on one side of the floating diaphragm 32 facing the circuit board 33, and when the floating diaphragm 32 deflects towards the conducting strip 31 under a negative pressure state, the outside air flow may enter the main body 10 through the air supply hole 331, so as to facilitate the deformation or deflection vibration of the floating diaphragm 32. Of course, the air supply hole 331 is not limited to be formed in the circuit board 33, for example, in the second peripheral surface 12, so as to supply air to the inner cavity 13 of the main body 10 of the floating diaphragm 32 away from the conductive plate 31.

Further, as shown in fig. 1 to 4, in the embodiment of the present invention, in order to prevent the protective film 50 from being tightly attached to the main body 10, the protective film 50 is not deformed during suction, and the phenomenon of insensitivity is triggered. In this embodiment, a supporting member 51 is further disposed between the protective film 50 and the main body 10, and when the protective film 50 is mounted on the main body 10, two sides of the supporting member 51 respectively abut against the outer surface of the main body 10 and the surface of the protective film 50 facing the main body 10, so that the protective film 50 and the main body 10 are spaced apart from each other, and the phenomenon that the trigger assembly 30 cannot be triggered due to the fact that the protective film 50 is not deformed during suction due to certain friction or electrostatic adsorption force between the protective film 50 and the main body 10 is avoided. Meanwhile, the protective film 50 and the first cavity 40 formed between the main body 10 have a certain initial volume, and further have a certain amount of gas storage, so that the protective film 50 is more easily deformed, and the influence of temperature on air pressure is weakened.

Specifically, the triggering component 30 is a triggering component with a model number S087, and a micro-pressure sensing component with a triggering precision of-400 pa is adopted. In order to prevent the phenomenon of false triggering caused by air pressure change due to temperature, in this embodiment, the circuit board 33 is programmed, the conductive plate 31 and the floating diaphragm 32 are used as sampling ends, data collection is performed on the potentials or the attached electric charges carried by the conductive plate 31 and the floating diaphragm at certain intervals, and the data collection is defined as a standard air pressure value. Thereby effectively preventing the phenomenon that the air flow expands due to the ambient temperature to generate false triggering.

Furthermore, the supporting member 51 is ring-shaped, and the area enclosed by the inner annular surface of the supporting member 51 is greater than or equal to the area of the opening of the air outlet 111, so that when the protection film 50 is installed on the main body 10, the air outlet 111 is accommodated in the area enclosed by the inner annular surface of the supporting member 51, and a part of the protection film 50 not covered by the supporting member 51 is erected outside the air outlet 111 to form the elastic deformation region 52. Here, the area enclosed by the inner annular surface of the support 51 is greater than or equal to the area of the air outlet opening, so as to ensure that the support 51 and the protective film 50 completely cover the air outlet hole 111 when the protective film 50 is mounted on the main body 10.

Specifically, to ensure the triggering accuracy, the user may adjust the flexibility of the protective film 50 to increase the deformation amount thereof, or the area of the protective film 50 deformed is designed to be large, thereby increasing the size of the space generated after the deformation thereof. In this embodiment, the elastic deformation region 52 of the protection film 50 is a region surrounded by the inner annular surface of the support 51, so that the triggering accuracy is improved by designing the inner annular surface of the support 51 to be larger. Further, when the distance between the outer annular surface and the inner annular surface of the supporting element 51 is constant, the larger the outer annular surface is, the largest area is surrounded by the inner annular surface, in this embodiment, the outer annular surface is adapted to the outer edge of the main body 10, so as to increase the space generated after the deformation of the protection film 50 as much as possible. Meanwhile, the area enclosed by the circle is the largest under the same diameter, so that the inner annular surfaces of the induction zone and the support member 51 are designed to be circular.

Specifically, the main body 10 is cylindrical, the diameter of the cross section of the main body is 6mm, and the air outlet 111 is formed in the first surface 11 of the main body 10 to form the sensing region. The diameter interval of the air outlet 111 is 2mm-3mm, and the opening area of the air outlet is one third to one half of the area of the first surface 11, so that when the protective film 50 deforms under the action of suction force, air flow in the inner cavity 13 can rapidly flow into the first cavity 40 from the air outlet 111, and negative pressure is generated to trigger the trigger assembly 30.

Specifically, the diameter of the air outlet 111 is 2.5mm, and at this time, the distance between the main body 10 and the single edge of the outer edge of the air outlet 111 is 1.75mm, so as to limit the trigger component 30 in the inner cavity 13 and prevent the internal trigger component 30 from crushing the first surface 11 when the suction force is large.

Specifically, in this embodiment, the protective film 50 and the supporting member 51 are made of a flexible material, such as silicone, and are integrally formed, which is effective for manufacturing and production. The processing method can be realized by cutting a protective film 50 base layer which is matched with or larger than the size of the first surface 11 of the main body 10, then forming a groove with the diameter larger than or equal to that of the air outlet hole 111 at the position corresponding to the air outlet hole 111, wherein the bottom wall of the groove is thinner and is easy to deform to form an elastic deformation area 52, and the outer edge of the groove is thicker to form a supporting piece 51.

Further, in order to prevent the elastic deformation region 52 from being located on the end surface of the supporting member 51, a phenomenon that the elastic deformation region is easily scratched during the use and cleaning process of the user may occur. During production, grooves can be simultaneously formed in two sides of the base layer of the protective film 50, so that the elastic deformation region 52 is formed in the middle of the inner annular surface of the support member 51, and has a certain height difference with the outer end surface of the support member 51, and the occurrence of a scratch phenomenon is prevented.

Further, the sensing area is not completely covered when the protection film 50 is mounted on the main body 10. In this embodiment, the diameter of the inner annular surface of the supporting member 51 is set to 2mm-6mm to ensure that the enclosed area of the inner annular surface of the supporting member 51 is greater than or equal to the area of the opening of the air outlet 111, so that when the protection film 50 is mounted on the main body 10, the air outlet 111 is hermetically surrounded by the inner annular surface of the supporting member 51. The phenomenon that the external air flow enters the first chamber 40 from the gap between the support 51 and the body 10 to cause the non-triggering is prevented.

Furthermore, the thickness of the elastic deformation area 52 is 0.03mm to 0.5mm, and the thickness is selected mainly according to the elastic deformation capability of the product. Meanwhile, depending on the area of the elastic deformation region 52, it can be understood that when the diameter of the elastic deformation region 52, i.e. the inner annular surface of the supporting member 51, is small, such as 2-3mm, a larger deformation is required to occur if the triggering element 30 is triggered, and therefore, the thickness of the elastic deformation region 52 is selected to be a smaller size, such as 0.03mm-0.09mm, and the specific thickness value is also connected with the connecting strength of the material selected for the protecting member, so as to ensure that the elastic deformation region is not prone to rupture when the elastic deformation region 52 is deformed greatly. When the diameter of the elastic deformation area 52, i.e. the inner annular surface of the supporting member 51, is larger, e.g. 6mm, at this time, the elastic deformation area 52 only needs to generate a smaller amplitude value to trigger the triggering component 30, and therefore, a thicker protective film 50, e.g. a protective film 50 with a thickness of 0.2mm to 0.5mm, can be selected.

Specifically, as shown in fig. 4, in the embodiment of the present invention, the pneumatic switch 100 further includes a pressing ring 60, one end of the pressing ring 60 is pressed to one side of the protection film 50 deviating from the main body 10, and the other end is sleeved with the main body 10 to press the protection film 50 to the first surface 11 of the main body 10, at this time, in order to ensure the pressing stability, the distance value between the outer annular surface and the inner annular surface of the supporting member 51 is designed to be large, so that the pressing ring 60 is pressed. For example, in this embodiment, the diameter of the inner annular surface is selected to be 3mm, the thickness of the single side of the supporting member 51 is 1.5mm, and the pressing ring 60 presses the single side.

It should be understood that, in practical applications, the protective film 50 is not limited to the above embodiment that is compressed by the compressing ring 60, for example, as shown in fig. 5, in the embodiments of the present invention, in other embodiments of the present invention, the following definitions are defined: the surface of the main body 10 provided with the air outlet is a first surface 11, and the surfaces of the main body 10 adjacent to the first surface 11 are combined to form a second peripheral surface 12 of the main body 10. In this embodiment, the outer annular surface of the supporting member 51 is extended to form a sealing portion 511, the sealing portion 511 and the supporting member 51 are integrally formed by a flexible material, and further have a certain elasticity, and the sealing portion 511 is sleeved on the second outer circumferential surface 12 of the main body 10, so as to fix the protective film 50, and the fixing manner is not required to be pressed by the pressing ring 60, so that the size of the inner annular surface of the supporting ring can be designed to be larger. If the diameter of the elastic deformation area is 3.6mm, 4mm and the like, and at the moment, the thickness value of the elastic deformation area 52 is 0.1mm or 0.12mm, so that the connection strength is high while the elastic deformation force is good, and the elastic deformation area is not easy to break. For another example, an adhesive layer 512 may be disposed on a side of the supporting member 51 away from the protective film 50, and when the protective film 50 is mounted on the main body 10, the side of the protective film 50 where the supporting member 51 is disposed is pressed against the outer surface of the main body 10, so that the supporting member 51 is hermetically bonded to the outer surface of the main body 10, thereby completing the mounting. Simple to operate, and the mode through bonding effectively prevents to have the phenomenon that the clearance leads to leaking gas between the two and produces.

The utility model also provides a power supply unit 200 of electron cigarette, this power supply unit 200 includes pneumatic switch 100, power supply unit 200 responds pneumatic switch 100 is triggered the time, carries out corresponding order. The specific structure of the pneumatic switch 100 refers to the above embodiments, and since the power supply device 200 of the electronic cigarette adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

Specifically, as shown in fig. 6, in the embodiment of the present invention, the power supply device 200 is provided with an induction air passage 210 communicated with the outside, the pneumatic switch 100 is accommodated in the power supply device 200, and an electrical connection is established between the circuit board 33 inside the pneumatic switch 100 and the power supply device 200, so that the trigger assembly 30 transmits a control signal to the power supply device 200 through the circuit board 33 when sensing a negative pressure. One side of the pneumatic switch 100, which is provided with the protective film 50, faces the side of the sensing air channel 210 communicated with the outside, so that the protective film 50 deforms under the action of suction force when a user sucks. Meanwhile, in order to ensure the triggering accuracy, the pneumatic switch 100 may be installed in the sensing air passage 210, and the outer circumferential surface of the pneumatic switch 100 is in close contact with the inner wall of the sensing air passage 210, so that when a user sucks, air cannot be sucked from a gap between the pneumatic switch 100 and the sensing air passage 210, which results in a phenomenon that the suction force generated on the protective film 50 is small.

The utility model also provides an electronic cigarette, this electronic cigarette include atomizing device 300 and power supply unit 200, atomizing device 300 is equipped with an at least air inlet 310, an at least air inlet 310 will atomizing device 300 inside with response air flue 210 intercommunication, when the user suction, the air current in the response air flue 210 can be taken out, thereby triggers pneumatic switch 100.

Specifically, to ensure that the airflow in the sensing air channel 210 is drawn into the air inlet 310 in time, in this embodiment, the at least one air inlet 310 is opposite to the sensing air channel 210, so that when a user sucks, the airflow in the sensing air channel 210 is preferentially drawn out, thereby improving the triggering sensitivity.

Specifically, in the present embodiment, the atomization device 300 may further include a plurality of air inlets 310. For example, the atomizer is disposed at two air inlets 310, wherein one air inlet 310 is disposed at a side of the atomization device 300 and is communicated with the outside, and is mainly used for providing working air flow for atomization inside the atomizer. The other air inlet 310 may be opened at the bottom of the atomizing device 300 and directly faces the sensing air channel 210 of the power supply device 200, so that when a user sucks, the air flow in the sensing air channel 210 directly facing the air inlet 310 is drawn out to generate a certain suction force to the protective film 50 of the air channel switch, so that the protective film is deformed to generate a negative pressure to trigger the sensing area.

Specifically, in order to prevent the air flow in the sensing air passage 210 from being sucked by the air inlet 310 facing the sensing air passage 210, the air flow in the sensing air passage 210 also has a certain suction force, so that the suction force applied to the air flow in the sensing air passage 210 is weak, and the pneumatic switch 100 cannot be triggered. In this embodiment, one end of the air guide tube is inserted into the air inlet 310, and the other end of the air guide tube is inserted into the sensing air channel 210, so that when a user sucks, the suction force generated by the air inlet 310 only draws air through the sensing air channel 210, thereby ensuring the triggering sensitivity of the pneumatic switch 100.

It is understood that, in the practical application process, not only the sealed air guiding tube is inserted into the air inlet 310 and the sensing air passage 210 respectively in the above embodiments, for example, the outer edge of the sensing air passage 210 or the outer edge of one of the air inlets 310 may also be raised, so that when the atomization device 300 is installed in the power supply device 200, the air inlet 310 and the outer edge of the sensing air passage 210 are adapted to abut against each other, so that the air flow drawn in the air inlet 310 only flows out from the sensing air passage 210, and the present invention also falls within the protection scope of the present invention.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pneumatic switch of an electronic cigarette comprises a main body, wherein the main body is provided with a sensing area, and the sensing area is triggered when in a negative pressure state;

2. The pneumatic switch of an electronic cigarette of claim 1, wherein the first cavity is a sealed cavity.

3. The pneumatic switch of the electronic cigarette according to claim 1, wherein one of the protective film and the main body is provided with a support member, and when the protective film is mounted on the main body, two sides of the support member respectively abut against the outer surface of the main body and the surface of the protective film facing the main body, so that the protective film and the main body are spaced apart from each other.

4. The pneumatic switch of the electronic cigarette according to claim 3, wherein the supporting member is disposed in a ring shape, and an area enclosed by an inner ring surface of the supporting member is greater than or equal to an area of the sensing area, so that when the protection film is mounted on the main body, the sensing area is accommodated in an area enclosed by the inner ring surface of the supporting member, and the protection film not covered by the supporting member forms an elastic deformation area.

5. The pneumatic switch of an electronic cigarette of claim 4, wherein the area enclosed by the inner annular surface of the support member is larger than the area of the sensing region.

6. The pneumatic switch of the electronic cigarette according to claim 4, wherein the area enclosed by the sensing area and the inner annular surface is formed in a circle, the diameter section of the sensing area is 2mm to 3mm, and the diameter section of the inner annular surface of the support member is 2mm to 6 mm.

7. The pneumatic switch of an electronic cigarette of claim 6, wherein the diameter of the sensing area is 2.5mm and the diameter of the inner annular surface of the support member is 3mm-5 mm.

8. The pneumatic switch of an electronic cigarette according to claim 4, wherein the thickness of the protective membrane at the elastically deformable region has a value of 0.03mm to 0.5 mm.

9. The pneumatic switch of an electronic cigarette of claim 4, wherein the support is integrally formed with the protective membrane.

10. The pneumatic switch of an electronic cigarette of claim 9, wherein the support is molded to a surface of the protective membrane facing the body; or, the protective film is formed on the inner ring surface of the support.

11. The pneumatic switch of an electronic cigarette of claim 9, wherein the body defines a first surface and surfaces adjacent to the first surface, the surfaces defining a second peripheral surface of the body, the sensing region being located on the first surface, the support member and the protective membrane being arranged in sequence outside the first surface;

12. The pneumatic switch of the electronic cigarette of claim 4, further comprising a pressing ring, wherein one end of the pressing ring is pressed against the edge of the side of the protection film away from the main body, and the other end of the pressing ring is sleeved with the main body so as to press the edge of the protection film against the main body.

13. The pneumatic switch of an electronic cigarette according to claim 4, wherein an adhesive layer is further disposed on a side of the supporting member facing away from the protective film, and when the supporting member is mounted on the main body, the adhesive layer adheres the outer surface of the main body and the supporting member in a sealing manner.

14. The pneumatic switch of an electronic cigarette according to any one of claims 1 to 13, wherein the main body is provided with an inner cavity and an air outlet, the main body is provided with a trigger assembly in the inner cavity, the trigger assembly is triggered under a negative pressure state, the air outlet is communicated with the outside to form the sensing area, and when the outside forms a negative pressure, the air flow in the inner cavity can flow out through the air outlet.

15. The pneumatic switch of an electronic cigarette of claim 14, wherein the trigger assembly comprises a conductive plate, a floating diaphragm and a circuit board sequentially arranged from the position close to the air outlet to the position far from the air outlet, the conductive plate is electrically connected with the circuit board, the conductive plate is provided with at least one air passing hole communicated with the air outlet, and the floating diaphragm is contacted with or separated from the conductive plate under the action of air flow so as to enable the conductive plate to generate an electrical signal.

16. A power supply device of an electronic cigarette, comprising the pneumatic switch of the electronic cigarette according to any one of claims 1 to 15, wherein the power supply device is provided with an induction air passage communicated with the outside, the pneumatic switch is accommodated in the power supply device and is electrically connected with the power supply device, and one side of the pneumatic switch provided with a protective film is exposed in the induction air passage.

17. The power supply device of claim 16, wherein the pneumatic switch is accommodated in the sensing air passage, one side of the pneumatic switch provided with the protective film faces to one side of the sensing air passage communicated with the outside, and the periphery of the pneumatic switch is in close contact with the sensing air passage.

18. An electronic cigarette, comprising an atomizing device and a power supply device of the electronic cigarette according to claim 16 or 17, wherein the power supply device is configured to supply power to the atomizing device.

19. The electronic cigarette of claim 18, wherein the aerosolization device is provided with at least one air inlet, the at least one air inlet communicating with the aerosolization device internal air passage and the sensing air passage.

20. The electronic cigarette of claim 19, wherein the at least one air inlet is directly opposite the inductive air path of the power supply.

21. The electronic cigarette of claim 18, wherein the atomizing device has at least two air inlets, and when the atomizing device is installed in the power supply device, one of the at least two air inlets is communicated with an external air path, and a closed air path is formed between the other air inlet and the sensing air path, so that the air flow in the sensing air path flows out only through the air inlets.