CN111588092A

CN111588092A - Waterproof construction and electron cigarette of electron cigarette pneumatic switch

Info

Publication number: CN111588092A
Application number: CN201910410276.XA
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: 2020-08-28

Abstract

The invention discloses a waterproof structure of a pneumatic switch of an electronic cigarette and the electronic cigarette, wherein the waterproof structure comprises a power supply device and the pneumatic switch, the power supply device is provided with an accommodating cavity and an induction air passage communicated with the outside, the pneumatic switch is provided with an induction area, the induction area is triggered when in a negative pressure state, one end of the pneumatic switch provided with the induction area is accommodated in the accommodating cavity, and the surface of the pneumatic switch provided with the induction area and the inner cavity wall of the accommodating cavity are enclosed to form a closed trigger chamber; the accommodating cavity comprises a first cavity wall made of flexible materials, and the first cavity wall separates the induction air channel from the trigger chamber; when the airflow in the induction air passage is pumped out to the outside, the first cavity wall is deformed towards the induction air passage by suction force, so that the volume of the trigger chamber is increased. According to the technical scheme, the phenomenon that the tobacco juice and the condensed water penetrate into the pneumatic switch and damage the pneumatic switch is avoided.

Description

Waterproof construction and electron cigarette of electron cigarette pneumatic switch

Technical Field

The invention relates to a waterproof structure of a pneumatic switch of an electronic cigarette and the electronic cigarette applying the waterproof structure of the pneumatic switch.

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.

Disclosure of Invention

The invention mainly aims to provide a pneumatic switch waterproof structure of an electronic cigarette, aiming at preventing tobacco juice and condensed water from permeating into a pneumatic switch and damaging the pneumatic switch.

In order to achieve the purpose, the waterproof structure of the pneumatic switch of the electronic cigarette provided by the invention comprises a power supply device and a pneumatic switch, wherein the power supply device is provided with an accommodating cavity and an induction air passage communicated with the outside, the pneumatic switch is provided with an induction area, the induction area is triggered when in a negative pressure state, one end of the pneumatic switch provided with the induction area is accommodated in the accommodating cavity, and the surface of the pneumatic switch provided with the induction area and the inner cavity wall of the accommodating cavity are enclosed to form a closed trigger chamber;

the accommodating cavity comprises a first cavity wall made of flexible materials, and the first cavity wall separates the induction air channel from the trigger chamber;

when the airflow in the induction air passage is pumped out to the outside, the first cavity wall is deformed towards the induction air passage by suction force, so that the volume of the trigger chamber is increased.

Optionally, the first cavity wall seals and blocks one end, far away from the outside, of the sensing air passage in a sealing manner.

Optionally, the first cavity wall faces the sensing region; and/or the first cavity wall is over against the opening of the sensing air passage communicated with the outside.

Optionally, the power supply device includes a sealing element and a protective film made of a flexible material, the pneumatic switch includes a first surface provided with an induction area, the sealing element is provided with an inner cavity to form the accommodating cavity, when the sealing element is installed inside the power supply device, the window is arranged corresponding to the induction air passage, and the protective film hermetically separates the window and the induction air passage to form the first cavity wall.

Optionally, the protective membrane is integrally formed with the seal.

Optionally, the sealing member is kept away from the one end of window still is equipped with the confession the opening of dodging of air switch installation, air switch is equipped with the one end of induction zone is followed dodge the opening and insert the holding intracavity, just air switch is equipped with the outer peripheral edges of the one end of induction zone with the inner chamber wall interference fit in holding chamber, so that form between air switch's first surface and the first chamber wall inclosed trigger chamber.

Optionally, the sealing element is further provided with at least one exhaust groove on the inner cavity wall of the accommodating cavity, one end of the exhaust groove is exposed to the outside from the avoiding opening, and the other end of the exhaust groove extends towards the window.

Optionally, the depth to which the vent slot extends from the opening towards the window is less than the depth to which the pneumatic switch is inserted along the opening.

Optionally, the protective membrane is erected between the inner cavity wall of the accommodating cavity provided with the window and the first surface of the pneumatic switch.

Optionally, when the pneumatic switch is inserted in the accommodating cavity, the protective film is pressed to the inner cavity wall of the accommodating cavity provided with the window, the window is covered with the protective film in a sealing manner, and the protective film can deform towards the window under the action of suction force.

Optionally, a support is further disposed on one side of the protective film facing the pneumatic switch, and the pneumatic switch is abutted to the support when inserted into the accommodating cavity, so that the trigger chamber is formed between the protective film and the first surface of the pneumatic switch at an interval.

Optionally, both sides of the protective membrane are provided with said support.

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

Optionally, the support is annularly disposed, and an area enclosed by the inner annular surface of the support is greater than or equal to an area of the sensing area, so that when the pneumatic switch abuts against the support, the sensing area is accommodated in the area enclosed by the inner annular surface of the support, and the protective film not covered by the support forms an elastic deformation area.

Optionally, the thickness of the protective film at the elastic deformation region is 0.01mm-0.5 mm.

Optionally, the protective film faces the inner cavity wall of the accommodating cavity provided with the window, and an adhesive layer is further arranged on the inner cavity wall, so that the protective film is bonded with the inner cavity wall of the accommodating cavity provided with the window.

Optionally, the power supply device is further provided with an air guide edge at one end of the induction air passage far away from the outside, the air guide edge is arranged in a hollow manner to be communicated with the induction air passage, the sealing element is further provided with an air guide sleeve at the outer edge of the window, and the air guide sleeve is elastically sleeved on the periphery of the air guide edge so as to enable an air passage between the induction air passage and the window to be communicated; or the sealing element is also provided with an air guide sleeve at the outer edge of the window, and the air guide sleeve is inserted into the induction air passage.

The invention also provides an electronic cigarette, which comprises a waterproof structure of a pneumatic switch of the electronic cigarette, wherein the waterproof structure comprises a power supply device and a pneumatic switch, the power supply device is provided with an accommodating cavity and an induction air passage communicated with the outside, the pneumatic switch is provided with an induction area, the induction area is triggered when in a negative pressure state, one end of the pneumatic switch, provided with the induction area, is accommodated in the accommodating cavity, and a closed trigger chamber is defined by the surface of the pneumatic switch, provided with the induction area, and the inner cavity wall of the accommodating cavity;

Optionally, the electronic cigarette further comprises an atomizing device electrically connected with the power supply device, the atomizing device is provided with at least one air inlet communicated with the air passage inside the atomizing 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 atomizing device is provided with 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 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.

According to the waterproof structure of the electronic cigarette pneumatic switch, the separated induction air passage and the accommodating cavity are formed in the power supply device, and when one end of the pneumatic switch, which is provided with the induction area, is accommodated in the accommodating cavity, the surface of the pneumatic switch, which is provided with the induction area, and the inner cavity wall of the accommodating cavity form a closed trigger chamber. And then effectively prevent that fluid and comdenstion water from the response air flue infiltration to in the trigger chamber, lead to causing the phenomenon of corrosion damage to pneumatic switch and produce. And further, the first cavity wall at the intersection of the accommodating cavity and the induction air passage is made of a flexible material. When a user sucks, the airflow in the induction air passage is pumped out to the outside, so that a certain suction force is generated on the first cavity wall to deform the first cavity wall, and the volume of the deformed trigger chamber is increased. When the airflow value in the trigger chamber is constant and the volume is increased, the air pressure value is reduced, so that negative pressure is generated to trigger the induction 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 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 cross-sectional view of a connection structure of an electronic cigarette according to an embodiment of the present invention;

fig. 2 is a schematic sectional view of a connection structure of a waterproof structure of a pneumatic switch according to a second embodiment of the present invention;

fig. 3 is a schematic sectional view of a connection structure of a waterproof structure of a pneumatic switch according to a third embodiment of the present invention;

FIG. 4 is a perspective view of a connection structure of a pneumatic switch inserted into the sealing member according to an embodiment of the present invention;

FIG. 5 is a perspective view of a sealing member connecting structure according to an embodiment of the present invention;

fig. 6 is an exploded view of the pneumatic switch connection structure of the electronic cigarette according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Power supply device	210	Sensing area
10	Containing cavity	2101	Air outlet
				11	Sealing element	220	Conductive sheet
111	Window opening	2201	Air passing hole
				112	Avoiding opening	230	Insulating ring
113	Exhaust groove	240	Floating diaphragm
				114	Air guide sleeve	250	Conducting ring
12	Protective film	260	Circuit board
				121	Support piece	270	First surface
122	Adhesive layer	300	Atomization device
				13	Trigger chamber	310	Air inlet
30	Induction air passage	1000	Electronic cigarette
				200	Pneumatic switch

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, 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 movement situation, etc. in a specific posture (as shown in the drawing), 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 implicitly 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, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention provides an electronic cigarette 1000, as shown in fig. 1, the electronic cigarette 1000 includes an atomizing device 300 and a power supply device 100 for supplying power to the atomizing device 300, the power supply device 100 is provided with an installation cavity for installing an external atomizing device 300, the external atomizing device 300 is installed in the installation cavity to establish electrical connection with the power supply device 100, and the electronic cigarette 1000 is formed by combination. Of course, the atomizer 300 and the power supply device 100 may also be designed in a non-detachable manner. Be equipped with atomizing chamber and oil storage chamber and suction gas channel in atomizing device 300, the suction gas channel with atomizing chamber intercommunication, and in atomizing device 300 outward appearance forms air inlet and suction mouth. The atomizing intracavity is equipped with heating element, and with the oil storage chamber intercommunication for produce the heat under the drive effect of electric current, adsorb fluid from the oil storage chamber with the heating, thereby produce smog and supply the user's suction. In order to facilitate control and improve the simulation degree of smoking, an induction air channel 30 communicated with the outside and a pneumatic switch 200 for inducing negative pressure are arranged in the power supply device 100, and an induction area 210 of the pneumatic switch 200 is arranged corresponding to the induction air channel 30. When the atomizer 300 is mounted to the power supply device 100, the air inlet communicates with the sensing air passage 30. Therefore, when the user sucks, the air flow in the sensing air passage 30 is drawn out to generate a negative pressure, and the pneumatic switch 200 is triggered when sensing the negative pressure, so as to drive the power supply device 100 to supply power to the atomizing device 300, so that the atomizing device operates normally. And physical key pressing triggering is not required. The simulation degree is good, and the operation of a user is convenient.

Specifically, the pneumatic switch 200 adopts a triggering component with the model number of S087 and a micro-pneumatic sensing component with the triggering precision of-400 pa. In order to prevent the occurrence of a phenomenon of false triggering caused by a change in air pressure due to temperature, in this embodiment, a program is added to the circuit board 260, the conductive plate 220 and the floating diaphragm 240 are used as sampling ends, data collection is performed on potentials carried by the conductive plate 220 and the floating diaphragm 240 or an attached electric charge amount at intervals of a certain time, 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.

It can be understood that, as shown in fig. 6, in the practical application process, the pneumatic switch 200 is not limited to the trigger component with the model S087 in the above embodiment, for example, other types of pneumatic switches 200 may also be used, the pneumatic switch 200 includes a main body and a trigger assembly, the main body is provided with an air outlet 2101, the trigger assembly includes a conductive sheet 220, a floating diaphragm 240 and a circuit board 260, which are sequentially arranged in the main body from the position close to the air outlet 2101 to the position far from the air outlet 2101, the conductive sheet 220 is electrically connected to the circuit board 260, and is provided with at least one air passing hole 2201 communicated with the air outlet 2101. When a user sucks, air flow in the main body flows out through the air passing holes 2201 and the air outlet holes 2101, and meanwhile, the floating membrane 240 swings towards the conducting strip 220 under the action of the air flow, so that part of the floating membrane is contacted with or separated from the conducting strip 220, and the conducting strip 220 generates an electric signal and transmits the electric signal to the circuit board 260.

Specifically, the principle of the electrical signal may be frictional static charge, for example, the floating membrane 240 is an insulating membrane, and the floating membrane vibrates under the action of the airflow to rub against the conductive sheet 220 to generate the static charge, and then the static charge is transmitted to the circuit board 260 through the conductive sheet 220. Of course, the principle of the electrical signal generation may also be a conductive electrical circuit, for example, the floating diaphragm 240 is a thin film made of a conductive material, the main body further includes a conductive ring 250 and an insulating ring 230, the conductive ring 250 is disposed between the floating diaphragm 240 and the circuit board 260 and electrically connects the floating diaphragm 240 and the circuit board 260, and the insulating ring 230 is disposed between the floating diaphragm 240 and the conductive plate 220 to separate the two. When a user sucks, the floating membrane 240 deforms under the action of the airflow to a position hollowed out from the middle of the insulating ring 230 to contact with the conductive sheet 220, so that the loops of the conductive sheet 220 and the conductive ring 250 are conducted, and an electrical signal is generated.

Further, as shown in fig. 6, in the embodiment of the present invention, in order to facilitate the floating diaphragm 240 to vibrate, an air supplement hole (not labeled) communicating with the outside may be formed on a side of the circuit board 260 facing the floating diaphragm 240, and when the floating diaphragm 240 is biased toward the conductive plate 220 in a negative pressure state, an external air flow may enter the main body through the air supplement hole, so as to facilitate the floating diaphragm 240 to deform or vibrate in a biased position. Of course, the gas-filling hole is not limited to be formed in the circuit board 260, for example, in the outer peripheral surface of the main body, and it also falls within the protection scope of the present invention to fill the main body with gas on the side of the floating diaphragm 240 away from the conductive sheet 220.

Further, since the air inlet 310 is connected to the sensing air duct 30, the oil and the condensate are easily infiltrated into the sensing air duct 30, which may cause damage to the pneumatic switch 200. Therefore, in the present invention, a waterproof structure of the pneumatic switch 200 is provided.

Referring to fig. 1 to 5, in the present embodiment, a receiving cavity 10 separated from the sensing air channel 30 is disposed inside the power supply device 100, one end of the pneumatic switch 200, which is provided with a sensing area 210, is received in the receiving cavity 10, and a surface of the pneumatic switch 200, which is provided with the sensing area 210, and an inner cavity wall of the receiving cavity 10 enclose a sealed trigger chamber 13; the accommodating cavity 10 comprises a first cavity wall made of a flexible material, the sensing air passage 30 and the trigger chamber 13 are separated by the first cavity wall, and therefore oil and condensate water are effectively prevented from permeating into the trigger chamber 13 from the sensing air passage 30, and the phenomenon of corrosion damage to the pneumatic switch 200 is avoided. When the user sucks, the airflow in the sensing airway 30 is drawn out and has suction force on the first cavity wall separating the trigger chamber 13 and the sensing airway 30, so that the first cavity wall deforms towards the inside of the sensing airway 30. It can be understood that when the first cavity wall deforms towards the inside of the sensing airway 30, the volume of the trigger chamber 13 increases, however, the trigger chamber 13 is a sealed chamber, and when the volume of the chamber increases, a negative pressure is formed, so that the pneumatic switch 200 can be normally triggered to supply power to the power supply device 100.

Specifically, as shown in fig. 1, in the embodiment of the present invention, one end of the sensing airway 30 is communicated with the outside, and the other end is sealed by the first wall, so that when the airflow in the sensing airway 30 is drawn out, the air cannot be supplemented from other places, and the suction force of the sensing airway directly acts on the first wall. Thereby ensuring triggering accuracy. Meanwhile, the sensing area 210 faces the first cavity wall, so that the sensitivity of sensing of the sensing area 210 during suction is further enhanced.

Specifically, as shown in fig. 2 or fig. 3, in the embodiment of the present invention, the sensing air duct 30 is a straight line section, and no bent section is provided in the air duct, so that the sensing area 210 faces the first chamber wall. Therefore, when the oil and the condensate seep into the sensing air passage 30 and are blocked by the first cavity wall, the user can throw the electronic cigarette 1000, and further throw the oil and the condensate out of the sensing air passage 30. The phenomenon that oil is blocked and accumulated in the induction air channel 30 when being thrown out due to the fact that the bent sections are arranged inside is avoided.

Specifically, as shown in fig. 2, in the embodiment of the present invention, a sealing member 11 made of an elastic silicone material and a protective film 12 made of a flexible material are disposed inside the power supply device 100, for example, a film material having a certain elastic deformation force, such as an elastic silicone or elastic PTFE film, an ETFE film, or a PVC film, is used. One end of the sealing member 11 is provided with an escape opening 112 for the pneumatic switch 200 to be inserted, and the other end is provided with a window 111, and an inner cavity is arranged inside the sealing member to form the accommodating cavity 10. When the sealing member 11 is installed inside the power supply device 100, the window 111 is disposed corresponding to the sensing air passage 30, and the protective film 12 hermetically separates the window 111 and the sensing air passage 30 to form the first chamber wall. The caliber of the avoiding opening 112 is slightly smaller than the outer diameter value of the pneumatic switch 200, when the pneumatic switch 200 is provided with one end of the sensing area 210 is inserted into the accommodating cavity 10 along the avoiding opening 112, the outer peripheral wall of the inner cavity of the sealing element 11 is elastically and tightly attached to the outer peripheral surface of the pneumatic switch 200, and external air flow is effectively prevented from flowing into the space between the trigger chamber 13 formed between the first surface 270 and the protective film 12 from the gap between the two.

Specifically, as shown in fig. 2 to 4, in the embodiment of the present invention, the pneumatic switch 200 and the escape opening 112 are preferably circular to facilitate insertion of the pneumatic switch 200. Meanwhile, in the first embodiment of the present invention, in order to prevent the protective film 12 from being broken due to the air impact on the protective film 12 caused by the air flow that cannot be exhausted when the pneumatic switch 200 is inserted, the pneumatic switch 200 may be inserted into the sealing member 11 along the avoiding opening 112, and then the protective film 12 may be installed on the sealing member 11, and the window 111 may be hermetically covered.

Specifically, as shown in fig. 2 to 4, in the embodiment of the present invention, in the practical application, if the protective film 12 is mounted on the outer side of the sealing member 11 where the window 111 is provided, the protective film 12 can only be mounted according to the protective film 12, and when the suction force is also applied to the side of the protective film 12 away from the sealing member 11, the protective film 12 is easily separated from the sealing member 11. Therefore, in the second embodiment of the present invention, the protective film 12 is pre-installed in the inner cavity of the sealing member 11, and then at least one exhaust groove 113 is formed in the cavity wall of the inner cavity of the sealing member 11, one end of the exhaust groove 113 is exposed to the outside from the escape opening 112, and the other end extends toward the window 111, and the extending depth of the exhaust groove is smaller than the insertion depth of the pneumatic switch 200 along the opening. When the pneumatic switch 200 is initially inserted into the inner cavity of the sealing element 11, the outer peripheral surface of the pneumatic switch 200 is elastically abutted to the cavity wall of the inner cavity of the sealing element 11, the air flow can be discharged through the at least one exhaust groove 113, and after the pneumatic switch 200 is inserted into the extending end of the exhaust groove 113, the outer peripheral surface of the pneumatic switch 200 is elastically and airtightly sleeved with the sealing element 11, so that the air flow is effectively prevented from entering between the outer peripheral surface of the pneumatic switch and the sealing element, and meanwhile, the phenomenon that the protective film 12 is broken due to large air pressure in the installation process is also effectively prevented.

It is understood that, in the practical application, the exhaust groove 113 is not limited to the above embodiment. For example, in another embodiment of the present invention, a vent hole (not shown) communicating with the inner cavity of the sealing member 11 may be provided on the outer circumferential surface of the sealing member 11, and when the pneumatic switch 200 is initially inserted into the sealing member 11, the air flow in the inner cavity may be discharged through the vent hole. The way that the outer circumferential surface of the pneumatic switch 200 blocks the vent hole when the pneumatic switch 200 is inserted into abutment with the protective film 12 also falls within the scope of the present invention.

Specifically, as shown in fig. 2 or fig. 3, in the embodiment of the present invention, the pneumatic switch 200 is inserted into the inner cavity of the sealing member 11, and the protective film 12 is pressed against the inner side of the cavity wall of the sealing member 11, where the window 111 is disposed, so as to effectively prevent the protective film 12 from shaking, and ensure that the protective film 12 is tightly attached to the cavity wall to hermetically cover the window 111.

Further, as shown in fig. 2, in the embodiment of the present invention, a supporting member 121 is further disposed on a side of the protective film 12 facing the pneumatic switch 200, the supporting member 121 may be in a form of a ring or a plurality of protrusions, and the supporting member 121 in a form of a ring or a plurality of protrusions is disposed on an edge of the protective film 12, so that when the pneumatic switch 200 is inserted into the sealing member 11, the supporting member 121 abuts against the protective film 12, thereby pressing the protective film 12, and a portion of the protective film 12 not covered by the supporting member 121 forms an elastic deformation region.

Specifically, the thickness of the elastic deformation region is 0.01mm-0.5mm, and the thickness depends on the elastic deformation force of the selected material and the area of the elastic deformation region. When the elastic deformation force is better, the thickness of the elastic deformation area can be thicker, otherwise, the elastic deformation area is thinner, and when the area of the elastic deformation area is larger, the thickness value can be designed to be thicker, otherwise, the elastic deformation area is designed to be thinner. The thickness of the elastically deformable zone preferably has a value of 0.5mm to 0.1mm in this embodiment. At this time, the pellicle 12 has a good deformation force and a high toughness.

Meanwhile, as shown in fig. 2, in the embodiment of the present invention, for convenience of processing, the protective film 12 and the supporting member 121 may be integrally formed by using a flexible material. So that the supporting member 121 and the inner cavity wall of the sealing member 11 disposed on the window 111 are elastically abutted and sealed, thereby further improving the airtight effect.

Besides, as shown in fig. 2, in the embodiment of the present invention, the supporting member 121 abuts against the pneumatic switch 200 to ensure that a space is supported between the protective film 12 and the side of the pneumatic switch 200 where the sensing area 210 is located to form the trigger chamber 13.

Specifically, as shown in fig. 2, in the embodiment of the present invention, when the supporting member 121 is disposed in an annular shape, the area enclosed by the inner annular surface of the supporting member 121 is larger than the area of the sensing area 210, so that when the pneumatic switch 200 abuts against the supporting member 121, the sensing area 210 is accommodated in the area enclosed by the inner annular surface of the supporting member 121, thereby preventing the sensing area 210 of the pneumatic switch 200 from being partially covered by the supporting member 121 and affecting the triggering accuracy thereof.

Further, in order to facilitate the installation of the protection film 12, the supporting members 121 may be provided on both sides of the protection film 12. Simultaneously, support piece 121's surface still is equipped with viscose layer 122 to further ensure for ensuring protective film 12 and airtight shroud window 111 protective film 12 deviates from support piece 121's one side still is equipped with viscose layer 122, so that protective film 12 with the bonding of the inner chamber wall that sealing member 11 was equipped with window 111, thereby further prevent that fluid or air current from the phenomenon of seepage from between the two from producing.

It is understood that, in the embodiment of the present invention, as shown in fig. 3, the protective film 12 is not limited to the above-mentioned separated form from the sealing member 11 during the practical application. For example, in the third embodiment of the present invention, the protective film 12 may be integrally formed with the sealing member 11. The processing mode is that a blind hole is formed on the surface of the sealing element 11, which faces the sensing air passage 30, the window 111 is formed on one side of the blind hole, which faces the sensing air passage 30, and the mode that one side of the blind hole, which faces the inner cavity, is closed to form the protective film 12 also belongs to the protection scope of the invention.

Specifically, as shown in fig. 1 to 5, in the embodiment of the present invention, an air guide edge is further disposed at one end of the power supply device 100, which is away from the outside, of the induction air channel 30, the air guide edge is hollow and is configured to communicate with the induction air channel 30, an air guide sleeve 114 is further disposed at an outer edge of the window 111 of the sealing member 11, and the air guide sleeve 114 is elastically sleeved on an outer periphery of the air guide edge, so as to enable an air path between the induction air channel 30 and the window 111 to be communicated; or, the sealing member 11 is further provided with an air guide sleeve 114 at the outer edge of the window 111, and the air guide sleeve 114 is inserted into the sensing air duct 30. Here, in the present embodiment, the air guide sleeve 114 and the air guide rim are provided, so that when the air flow in the sensing air passage 30 is extracted, air cannot be supplied from other places, and thus the triggering accuracy is ensured, and the installation and positioning of the sealing member 11 are facilitated.

The invention further provides an electronic cigarette 1000, the electronic cigarette 1000 includes an atomizing device 300 and a power supply device 100, the power supply device 100 includes a waterproof structure of the electronic cigarette 1000 pneumatic switch 200, the specific structure of the waterproof structure refers to the above embodiments, and as the power supply device 100 of the electronic cigarette 1000 adopts all technical solutions of all the above embodiments, at least all 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. 1, in the embodiment of the present invention, the atomization device 300 is provided with at least one air inlet 310, the at least one air inlet 310 communicates the inside of the atomization device 300 with the sensing air passage 30, and when a user sucks, the air flow in the sensing air passage 30 can be drawn out, so as to trigger the pneumatic switch 200.

Specifically, as shown in fig. 1, in the embodiment of the present invention, in order to ensure that the airflow in the sensing airway 30 is drawn into the air inlet 310 in time, in the embodiment, the at least one air inlet 310 is aligned with the sensing airway 30, so that when a user sucks, the airflow in the sensing airway 30 is preferentially drawn out, thereby improving the trigger 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. Another air inlet 310 may be opened at the bottom of the atomizing device 300 and directly faces the sensing air channel 30 of the power supply device 100, so that when a user sucks, the air flow in the sensing air channel 30 directly facing the air inlet 310 is drawn out to generate a certain suction force to the protective film 12 of the pneumatic switch 200, so as to deform the protective film, thereby generating a negative pressure to trigger the sensing area 210.

Specifically, in order to prevent the suction, the air inlet 310 facing the sensing air duct 30 sucks the air flow in the sensing air duct 30, and also has a certain suction effect on the air flow at other places, so that the suction force applied to the air flow in the sensing air duct 30 is weak, and the pneumatic switch 200 cannot be triggered. In this embodiment, one end of the air guide tube (not shown) is inserted into the air inlet 310, and the other end is inserted into the sensing air channel 30, so that when a user sucks, the suction force generated by the air inlet 310 only draws air through the sensing air channel 30, thereby ensuring the triggering sensitivity of the pneumatic switch 200.

It should be understood that, in the practical application, it is not limited to the above embodiment that the air guiding tube for sealing air is inserted into the air inlet 310 and the sensing air passage 30 respectively, for example, the outer edge of the sensing air passage 30 or the outer edge portion of one of the air inlets 310 may be raised, so that when the atomization device 300 is installed in the power supply device 100, the air inlet 310 and the outer edge of the sensing air passage 30 are adapted to abut against each other, so that the air flow drawn in the air inlet 310 flows out from the sensing air passage 30 only, and the present invention also falls within the protection scope of the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A waterproof structure of a pneumatic switch of an electronic cigarette is characterized by comprising a power supply device and a pneumatic switch, wherein the power supply device is provided with an accommodating cavity and an induction air passage communicated with the outside, the pneumatic switch is provided with an induction area, the induction area is triggered when in a negative pressure state, one end of the pneumatic switch, provided with the induction area, is accommodated in the accommodating cavity, and a closed trigger chamber is defined by the surface of the pneumatic switch, provided with the induction area, and the inner cavity wall of the accommodating cavity;

2. The waterproof structure of the pneumatic switch of the electronic cigarette according to claim 1, wherein the first chamber wall hermetically seals one end of the sensing air passage away from the outside.

3. The waterproof structure of the pneumatic switch of the electronic cigarette according to claim 1, wherein the first chamber wall faces the sensing area; and/or the first cavity wall is over against the opening of the sensing air passage communicated with the outside.

4. The waterproof structure of the pneumatic switch of the electronic cigarette according to any one of claims 1 to 3, wherein the power supply device comprises a sealing member and a protective film made of a flexible material, the pneumatic switch comprises a first surface provided with a sensing area, the sealing member is provided with an inner cavity to form the accommodating cavity, the window is arranged corresponding to the sensing air passage when the sealing member is installed inside the power supply device, and the protective film hermetically separates the window and the sensing air passage to form a wall of the first cavity.

5. The waterproof structure of the electronic cigarette pneumatic switch of claim 4, wherein the protective film is integrally formed with the sealing member.

6. The waterproof structure of the pneumatic switch of the electronic cigarette according to claim 4, wherein an avoiding opening for installing the pneumatic switch is further provided at an end of the sealing member away from the window, the end of the pneumatic switch provided with the sensing area is inserted into the accommodating cavity along the avoiding opening, and an outer peripheral edge of the end of the pneumatic switch provided with the sensing area is in interference fit with an inner cavity wall of the accommodating cavity, so that the closed trigger chamber is formed between a first surface of the pneumatic switch and the first cavity wall.

7. The waterproof structure of the electronic cigarette pneumatic switch of claim 6, wherein the sealing element is further provided with at least one exhaust groove on the inner cavity wall of the accommodating cavity, one end of the exhaust groove is exposed to the outside from the avoiding opening, and the other end of the exhaust groove extends towards the window.

8. The waterproof structure of the electronic cigarette pneumatic switch of claim 7, wherein a depth of the vent groove extending from the opening toward the window is smaller than a depth of the pneumatic switch inserted along the opening.

9. The waterproof structure for the pneumatic switch of the electronic cigarette according to claim 6, wherein the protective film is erected between the inner cavity wall of the accommodating cavity provided with the window and the first surface of the pneumatic switch.

10. The waterproof structure of the electronic cigarette pneumatic switch of claim 9, wherein when the pneumatic switch is inserted into the accommodating cavity, the protective film is pressed against an inner cavity wall of the accommodating cavity, which is provided with a window, and covers the window in a sealing manner, and the protective film can deform towards the window under the action of suction force.

11. The waterproof structure of the pneumatic switch of the electronic cigarette according to claim 10, wherein a support is further disposed on a side of the protective film facing the pneumatic switch, and the pneumatic switch abuts against the support when inserted into the receiving cavity, so that the trigger chamber is formed at a distance between the protective film and the first surface of the pneumatic switch.

12. The waterproof structure of the electronic cigarette pneumatic switch according to claim 11, wherein the support member is provided on both sides of the protective film.

13. The waterproof structure of the electronic cigarette pneumatic switch of claim 11, wherein the support member is integrally formed with the protective film.

14. The waterproof structure of the electronic cigarette pneumatic switch of claim 11, wherein the support is annularly arranged, and an area enclosed by an inner annular surface of the support is greater than or equal to an area of the sensing area, so that when the pneumatic switch abuts against the support, the sensing area is accommodated in an area enclosed by the inner annular surface of the support, and a protective film not covered by the support forms an elastic deformation area.

15. The waterproof structure of the pneumatic switch of the electronic cigarette according to claim 14, wherein the thickness of the protective film at the elastic deformation region has a value of 0.01mm to 0.5 mm.

16. The waterproof structure of the electronic cigarette pneumatic switch of claim 9, wherein the inner cavity wall of the protective film facing the accommodating cavity and provided with the window is further provided with an adhesive layer so as to bond the protective film and the inner cavity wall of the accommodating cavity and provided with the window.

17. The waterproof structure of the electronic cigarette pneumatic switch according to claim 9, wherein the power supply device further has an air guide edge at an end of the sensing air passage away from the outside, the air guide edge is hollow to communicate with the sensing air passage, the sealing member further has an air guide sleeve at an outer edge of the window, and the air guide sleeve is elastically sleeved on an outer periphery of the air guide edge to enable an air passage between the sensing air passage and the window to be communicated; or the sealing element is also provided with an air guide sleeve at the outer edge of the window, and the air guide sleeve is inserted into the induction air passage.

18. An electronic cigarette, characterized by comprising a waterproof structure of the electronic cigarette pneumatic switch according to any one of claims 1 to 17.

19. The electronic cigarette of claim 18, further comprising an atomizer electrically connected to the power supply, wherein the atomizer has at least one air inlet, and the at least one air inlet communicates with the atomizer 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 19, wherein the atomizer has at least two air inlets, and when the atomizer is installed in the power supply, one of the at least two air inlets is communicated with an external air channel, and a closed air channel is formed between the other air inlet and the sensing air channel, so that the air flow in the sensing air channel flows out only through the air inlets.