CN210869866U - Pneumatic switch of electron cigarette, power supply unit and electron cigarette of electron cigarette - Google Patents

Abstract

The utility model discloses a pneumatic switch and a power supply device and an electronic cigarette using the same, wherein the pneumatic switch comprises a main body, a trigger component and a flexible protective film, the main body is provided with a holding cavity, and a first cavity wall of the holding cavity is provided with an air outlet communicated with the outside; the protective film is arranged in the accommodating cavity and is arranged between the trigger assembly and the first cavity wall so as to hermetically divide the accommodating cavity into a first cavity and a second cavity; the trigger assembly is accommodated in the first cavity and is triggered in a negative pressure state; when the gas in the second cavity is pumped out, at least part of the protective film is deformed towards the second cavity, so that part of the gas flow in the first cavity flows into a space generated by the deformation of the protective film. The utility model discloses technical scheme prevents effectively that tobacco juice and comdenstion water from permeating to the sensor in, produces the phenomenon production of damage to the sensor.

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, power supply unit and electron cigarette of 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 sensor 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 sensor needs to be in 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 surface of the electronic cigarette sensor 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 the sensor in, produces the phenomenon production of damage to the sensor.

In order to achieve the above object, the utility model provides a pneumatic switch of an electronic cigarette, which comprises a main body, a trigger component and a flexible protective film, wherein the main body is provided with a holding cavity, and a first cavity wall of the holding cavity is provided with an air outlet communicated with the outside;

the protective film is arranged in the accommodating cavity and is arranged between the trigger assembly and the first cavity wall so as to hermetically divide the accommodating cavity into a first cavity and a second cavity;

the trigger assembly is accommodated in the first cavity and is triggered in a negative pressure state;

when the gas in the second cavity is pumped out, at least part of the protective film is deformed towards the second cavity, so that part of the gas flow in the first cavity flows into a space generated by the deformation of the protective film.

Optionally, the first cavity is a closed cavity.

Optionally, the guard membrane is disposed separate from the trigger assembly.

Optionally, the surface of the protective film facing the trigger assembly is further convexly provided with a support ring, the support ring is arranged around the edge of the protective film, and the part of the protective film which is not covered by the support member forms an elastic deformation area.

Optionally, when the protective film is installed in the accommodating cavity, the support ring is abutted to the outer surface of the trigger assembly, so that the elastic deformation area and the trigger assembly are arranged at intervals.

Optionally, the elastic deformation area is arranged right opposite to the air outlet hole.

Optionally, the trigger assembly includes a sensing area, and the sensing area is disposed opposite to the elastic deformation area.

Optionally, the area of the induction area is smaller than the area enclosed by the inner annular surface of the support ring;

when the protective film is arranged in the accommodating cavity, the supporting ring is at least arranged around the edge of the triggering assembly, which is provided with the sensing area, in an abutting mode, so that the supporting ring and the protective film at least cover the sensing area in a closed mode.

The utility model also provides a power supply unit of the electronic cigarette, which comprises a pneumatic switch of the electronic cigarette, wherein the pneumatic switch comprises a main body, a trigger component and a flexible protective film, the main body is provided with a holding cavity, and a first cavity wall of the holding cavity is provided with an air outlet communicated with the outside;

the protective film is arranged in the accommodating cavity and is arranged between the trigger assembly and the first cavity wall so as to hermetically divide the accommodating cavity into a first cavity and a second cavity;

the trigger assembly is accommodated in the first cavity and is triggered in a negative pressure state;

when the gas in the second cavity is pumped out, at least part of the protective film is deformed towards the second cavity, so that part of the gas flow in the first cavity flows into a space generated by the deformation of the protective film.

The power supply device is also internally 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 the air outlet is communicated with the air passage of the induction air passage.

The utility model also provides an electronic cigarette, including the atomizing device and the power supply unit, the power supply unit is used for supplying power for the atomizing device, the pneumatic switch of the electronic cigarette of the power supply unit, the pneumatic switch comprises a main body, a trigger assembly and a flexible protective film, the main body is provided with a holding cavity, a first cavity wall of the holding cavity is provided with an air outlet communicated with the outside; the protective film is arranged in the accommodating cavity and is arranged between the trigger assembly and the first cavity wall so as to hermetically divide the accommodating cavity into a first cavity and a second cavity; the trigger assembly is accommodated in the first cavity and is triggered in a negative pressure state; when the gas in the second cavity is pumped out, at least part of the protective film deforms towards the second cavity, so that part of the gas flow in the first cavity flows into a space generated by the deformation of the protective film; the power supply device is also internally 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 the air outlet is communicated with the air passage of the induction air passage.

Optionally, the air inlet of the atomization device is opposite to the induction air channel of the power supply device.

The utility model discloses technical scheme's pneumatic switch need not to adopt and covers 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. Meanwhile, the protective film is arranged in the containing cavity in the pneumatic switch to divide the containing cavity into a first cavity and a second cavity which are isolated from each other, the trigger assembly is contained in the first cavity and triggered in a negative pressure state, the second cavity is communicated with the air outlet, when a user sucks the electronic cigarette, air flow of the second cavity is drawn out and generates suction force on the protective film, so that the protective film deforms towards the second cavity, the volume in the first cavity is increased, the internal air flow flows into a space where the protective film deforms, and then the air pressure value is reduced to form negative pressure, so that the trigger assembly contained in the first cavity is triggered to normally work. Through forming two first cavities and the second cavity that are isolated each other, the mode that the volume produced the negative pressure is influenced in the discovery deformation of rethread protective film, effectively prevents that fluid from causing the phenomenon production of damage to triggering the subassembly.

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 exploded view of the pneumatic switch of the present invention;

fig. 3 is a schematic view of the electronic cigarette according to the present invention.

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 1000 or other equipment that change and trigger through the response air current. The utility model discloses use electron cigarette 1000 as the example. The electronic cigarette 1000 comprises an atomization device 300 pre-installed with cigarette liquid and a power supply device 200 for supplying power to the atomization 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 the pneumatic switch 100 is exposed in the induction air channel 210 to induce 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 component in the atomizing device 300 to generate heat to atomize the pre-stored smoke liquid, so that the smoke liquid generates smoke for the user to suck.

Referring to fig. 1 to 3, the utility model provides a pneumatic switch 100 of an electronic cigarette 1000, which comprises a main body 10, a trigger assembly 30 and a flexible protective film 20, wherein the main body 10 is provided with an accommodating cavity 11, and a first cavity wall of the accommodating cavity 11 is provided with an air outlet 113 communicated with the outside; the protective film 20 is installed in the accommodating cavity 11 and is installed between the trigger assembly 30 and the first cavity wall so as to hermetically divide the accommodating cavity 11 into a first cavity 111 and a second cavity 112; the first cavity 111 is a sealed cavity, and the second cavity 112 is communicated with the outside through the air outlet 113. The trigger assembly 30 is accommodated in the first cavity 111 and is triggered in a negative pressure state; when the gas in the second cavity 112 is pumped out, the protective film 20 is at least partially deformed toward the second cavity 112, so that a part of the gas flow in the first cavity 111 flows into the space generated by the deformation of the protective film 20.

Specifically, as shown in fig. 1, in order to prevent the protective film 20 from clinging to the trigger assembly 30, an electrostatic adsorption force is easily generated between the protective film 20 and the trigger assembly 30, so that the protective film 20 deforms only with a small deformation amount or a large suction force during suction, and the trigger precision is reduced. In this embodiment, one of the protective film 20 and the trigger assembly 30 is further provided with a support ring 21, when the trigger assembly 30 and the protective film 20 are mounted on the main body 10, the support ring 21 is disposed around the edge of the protective film 20, and the portion of the protective film 20 not covered by the support member is erected on the trigger assembly 30 and forms an elastic deformation region 22.

Specifically, as shown in fig. 1, in the embodiment of the present invention, the support ring 21 is integrally formed with the protection film 20, so that the connection strength of the outer edge of the protection film 20 is high. When the protective film 20 is installed in the accommodating cavity 11, the supporting ring 21 is pressed against the outer surface of the trigger assembly 30, so that the protective film 20 is effectively prevented from shaking, the elastic deformation area 22 and the trigger assembly 30 are arranged at intervals, and the phenomenon that the trigger precision is reduced is effectively prevented from being generated.

In particular, as shown in fig. 1, to further facilitate the improvement of the triggering accuracy. The embodiment of the utility model provides an in, through inciting somebody to action elastic deformation district 22 is just right the gas outlet sets up, when the user sucks, suction force direct action elastic deformation district 22, and the direction of its suction force that receives is unanimous rather than the deformation direction, consequently strengthens its effort to protective film 20 produced to be convenient for protective film 20 takes place deformation, and then promotes the effect that the negative pressure produced in order to trigger subassembly 30. In a similar way, one side of the trigger assembly 30 is provided with an induction area for inducing negative pressure, and the induction area is just opposite to the elastic deformation area 22, so that the trigger precision is further improved, and the structure is more compact.

Specifically, as shown in fig. 1, in the embodiment of the present invention, the area of the sensing region is smaller than the area enclosed by the inner annular surface of the supporting ring 21, so that when the protective film 20 is installed on the trigger assembly 30, the inner annular surface of the supporting ring 21 surrounds the sensing region, and the elastic deformation region 22 completely covers the sensing region. So that a sealed triggering chamber 40 is formed between the elastic deformation area 22 and the sensing area. It can be understood that, because the pneumatic switch 100 has a small size, typically a cylinder with a diameter of 4mm-8mm, the volume of the trigger chamber 40 is very small, and when a user sucks on the pneumatic switch, a small deformation value of the elastic deformation region 22 can also generate a large negative pressure effect, thereby further improving the trigger precision and preventing the phenomenon that the trigger assembly 30 is difficult to trigger after the first cavity 111 and the second cavity 112 are hermetically separated.

Specifically, as shown in fig. 1 or 2, in the embodiment of the present invention, the trigger assembly 30 includes a conductive sheet 31, a floating membrane 33 and a circuit board 35 sequentially arranged in the main body 10 from being close to the protective film 20 to being far away from the protective film 20, the conductive sheet 31 is electrically connected to the circuit board 35 and is provided with at least one air passing hole 311, the air passing hole 311 is communicated with the trigger chamber 40 to form the sensing region, and in this embodiment, the conductive sheet 31 is provided with a plurality of air passing holes 311. When a user sucks, the airflow in the trigger assembly 30 flows into the trigger chamber 40 through the air passing holes 311, and simultaneously the floating diaphragm 33 swings towards the conductive sheet 31 under the action of the airflow, so that part of the floating diaphragm is in contact with or separated from the conductive sheet 31, and the conductive sheet 31 generates an electric signal and transmits the electric signal to the circuit board 35.

Specifically, the principle of the electrical signal generation may be frictional static charge, for example, the floating diaphragm 33 is an insulating diaphragm, and generates static charge by being vibrated by the airflow to rub against the conductive sheet 31, and then transmits the static charge to the circuit board 35 through the conductive sheet 31. Of course, the principle of the electrical signal generation may also be a conductive electrical circuit, for example, the floating diaphragm 33 is a thin film made of a conductive material, the main body 10 further includes a conductive ring 34 and an insulating ring 32, the conductive ring 34 is disposed between the floating diaphragm 33 and the circuit board 35 and electrically connects the floating diaphragm 33 and the circuit board 35, and the insulating ring 32 is disposed between the floating diaphragm 33 and the conductive plate 31 to separate the two. When a user sucks, the floating membrane 33 deforms under the action of the airflow to be in contact with the conductive sheet 31 from the hollow-out part in the middle of the insulating ring 32, so that the loops of the conductive sheet 31 and the conductive ring 34 are conducted, and an electric signal is generated.

Further, as shown in fig. 1, in the embodiment of the present invention, in order to facilitate the floating diaphragm 33 to vibrate, an air supplement hole 36 (not labeled) communicating with the outside may be disposed on one side of the floating diaphragm 33 facing the circuit board 35, when the floating diaphragm 33 deflects toward the conducting strip 31 under the negative pressure state, the external air flow may enter the main body 10 through the air supplement hole 36, so as to facilitate the deformation or deflection vibration of the floating diaphragm 33. Of course, the air supply hole 36 is not limited to be formed in the circuit board 35, for example, formed in the outer peripheral surface of the main body 10, so as to supply air to the floating diaphragm 33 in the main body 10 away from the conductive plate 31.

The utility model provides a power supply unit 200 of electron cigarette 1000, this power supply unit 200 of electron cigarette 1000 include pneumatic switch 100 of electron cigarette 1000, pneumatic switch 100's specific structure refers to above-mentioned embodiment, because power supply unit 200 of electron cigarette 1000 has adopted all technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that above-mentioned embodiment technical scheme brought at least, and the repeated description is not given here again.

The utility model also provides an electron cigarette 1000, including atomizing device 300 electron cigarette 1000's power supply unit 200, power supply unit 200 is used for doing atomizing device 300 power supply. Moreover, the power supply apparatus 200 adopts all technical solutions of the above embodiments, so that 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. 3, 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 channel 210, and when a user sucks, the air flow in the sensing air channel 210 can be drawn out, so as to trigger the pneumatic switch 100.

Specifically, as shown in fig. 3, in the embodiment of the present invention, in order to ensure that the airflow in the sensing air passage 210 is timely drawn into the air inlet 310, in this embodiment, the at least one air inlet 310 is right opposite to the sensing air passage 210, so that when a user sucks, the airflow in the sensing air passage 210 is preferentially drawn out, and then the sensitivity of triggering is improved.

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 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 20 of the pneumatic switch 100, so as to deform the protective film, thereby generating a negative pressure to trigger the sensing area.

Specifically, in order to prevent the suction, the air inlet 310 facing the sensing air passage 210 sucks the air flow in the sensing air passage 210, and also has a certain suction effect on the air flow in other places, so that the suction force applied to the air flow in the sensing air passage 210 is weak, and the phenomenon that the pneumatic switch 100 cannot be triggered occurs. 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 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 (11)

1. The pneumatic switch of the electronic cigarette is characterized by comprising a main body, a trigger assembly and a flexible protective film, wherein the main body is provided with an accommodating cavity, and a first cavity wall of the accommodating cavity is provided with an air outlet communicated with the outside;

the protective film is arranged in the accommodating cavity and is arranged between the trigger assembly and the first cavity wall so as to hermetically divide the accommodating cavity into a first cavity and a second cavity;

the trigger assembly is accommodated in the first cavity and is triggered in a negative pressure state;

when the gas in the second cavity is pumped out through the gas outlet, at least part of the protective film is deformed towards the second cavity, so that part of the gas flow in the first cavity flows into a space generated by deformation of the protective film.

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

3. The pneumatic switch of an electronic cigarette of claim 1, wherein the protective membrane is spaced apart from the trigger assembly.

4. The pneumatic switch of an electronic cigarette according to claim 1, wherein the surface of the protective membrane facing the trigger assembly is further provided with a support ring in a protruding manner, the support ring is arranged around the edge of the protective membrane, and the part of the protective membrane which is not covered by the support ring forms an elastic deformation area.

5. The pneumatic switch of an electronic cigarette of claim 4, wherein when the protective membrane is mounted in the receiving cavity, the support ring abuts against an outer surface of the trigger assembly, so that the elastic deformation region and the trigger assembly are spaced apart.

6. The pneumatic switch of an electronic cigarette of claim 4, wherein the elastically deformable region is disposed opposite to the air outlet hole.

7. The pneumatic switch of an electronic cigarette of claim 4, wherein the trigger assembly comprises a sensing region disposed opposite the elastically deformable region.

8. The pneumatic switch of an electronic cigarette of claim 7, wherein the area of the sensing area is smaller than the area enclosed by the inner annular surface of the support ring;

when the protective film is arranged in the accommodating cavity, the supporting ring is at least arranged around the edge of the triggering assembly, which is provided with the sensing area, in an abutting mode, so that the supporting ring and the protective film at least cover the sensing area in a closed mode.

9. A power supply device for an electronic cigarette, comprising the pneumatic switch of the electronic cigarette according to any one of claims 1 to 8, wherein an induction air passage communicated with the outside is provided in the power supply device, the pneumatic switch is accommodated in the power supply device and electrically connected with the power supply device, and the air outlet is communicated with the air passage of the induction air passage.

10. An electronic cigarette, comprising an atomizing device and a power supply device of the electronic cigarette according to claim 9, wherein the power supply device is configured to supply power to the atomizing device.

11. The electronic cigarette of claim 10, wherein the air inlet of the atomizing device is directly opposite the inductive air channel of the power supply device.

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