CN212088099U

CN212088099U - Antifouling improved sensing and controller and electronic cigarette product applied by same

Info

Publication number: CN212088099U
Application number: CN202020161387.XU
Authority: CN
Inventors: 马美芳
Original assignee: Hangzhou Shanger Semiconductor Co ltd
Current assignee: Hangzhou Shanger Semiconductor Co ltd
Priority date: 2019-06-04
Filing date: 2020-02-11
Publication date: 2020-12-08
Anticipated expiration: 2030-02-11
Also published as: CN111317186A

Abstract

The antifouling improved sensor and controller comprises a cylindrical metal shell, wherein a control circuit board and a capacitance unit for sensing air pressure are sequentially arranged in the shell from top to bottom; the device is characterized by further comprising a dirt blocking membrane with micropores, wherein the dirt blocking membrane covers the through hole of the first plate and is used for blocking external dirt from entering the space below the control circuit board from the through hole of the first plate, and the dirt blocking membrane can allow air to pass through the micropores to conduct air pressure on two sides of the control circuit board. The invention has the beneficial technical effects that: owing to be provided with the dirty diaphragm of fender, the dirty diaphragm of fender covers first board through-hole, like this, can block outside filth and enter into control circuit board below space through first board through-hole under the filtering action of the dirty diaphragm of fender to can prolong the time length that qualified cleanliness factor was maintained in control circuit board's below space.

Description

Antifouling improved sensing and controller and electronic cigarette product applied by same

Technical Field

The invention relates to an antifouling improved sensing and controller, wherein a capacitor unit and a control circuit board are arranged in the antifouling improved sensing and controller, the capacitor unit is in electric signal connection with the control circuit board, the capacitance value of the capacitor unit can change in response to the air pressure change of a measured target space, and the control circuit board picks up the changed capacitance value and outputs a corresponding electric signal. The invention also particularly relates to an electronic cigarette product applying the anti-fouling improved sensor and controller.

Background

It is well known that cigarettes, whether they are active or passive, can cause serious harm to the health of smokers, mainly because of the tar contained in the cigarettes. Tar contains thousands of components, of which tens belong to carcinogens. Cigarette manufacturers try to use various methods to remove tar or carcinogens from tar, but the results are not satisfactory. Later, an emulated electronic cigarette product was proposed. It not only has the same appearance as a cigarette, but also can produce the same smoke, taste and feeling of a cigarette. Electronic cigarettes typically include an inductive controller, a memory in which the tobacco liquid is stored, and an aerosol generator for atomizing the tobacco liquid. The induction controller can respond to the inhalation action of the smoker to control the atomization generator to work to atomize the tobacco liquid in the storage into fog. The birth of the electronic cigarette meets the requirement that a plurality of smokers avoid inhaling tar in the process of smoking the cigarette. Smokers can select the nicotine-only tobacco liquid and use the electronic cigarette to smoke, the pleasure of smoking real cigarettes can be generated, and the electronic cigarette is gradually a smoking cessation tool and is popularized and applied. Furthermore, tobacco juice with medicinal value can be selected for smoking to treat respiratory diseases, and the electronic cigarette can also be used as a medical tool.

Currently, chinese patent 201080003430.9 discloses an electronic cigarette, which comprises an inhalation detector 100 for detecting the flow rate and direction of an air flow, a battery 200, a smoke source liquid, a heating element 300, and a mouthpiece 462, as shown in fig. 11 and 12. Wherein the inhalation detector is a modular assembly comprising the airflow sensor 120, the activation circuit and the LED light source, and all modules are mounted on the printed circuit board 140. The airflow sensor 120 includes a rigid or semi-rigid conductive film 121 and a conductive back plate 122, the conductive film 121 is mounted above the conductive back plate 122 in a spaced manner and separated by an insulating spacer 123, and the conductive film 121 and the conductive back plate 122 form a capacitive component. The conductive back plate 122 is connected to a ground plate 124 mounted on the printed circuit board 140 by a conductive ring 125. The airflow sensor 120 and the printed circuit board 140 are enclosed in a metal can 126, the metal can 126 defining an air inlet and an air outlet at axial ends thereof. When the airflow enters the metal can 126 and then flows through the airflow sensor 120 from bottom to top, the distance between the conductive film 121 and the conductive back plate 122 increases, so that the capacitance of the airflow sensor 120 decreases in response to the airflow in the direction. When the airflow enters the metal can 126 and then flows through the airflow sensor 120 from top to bottom, the distance between the conductive film 121 and the conductive back plate 122 decreases, so that the capacitance of the airflow sensor 120 rises in response to the airflow in the direction.

SUMMERY OF THE UTILITY MODEL

The electronic cigarette disclosed in chinese patent 201080003430.9 is configured such that the airflow sensor senses the flow rate and direction of airflow into the metal can and feeds back the capacitance value, which changes in response to the flow rate and direction of airflow, to the control circuit on the printed circuit board, thereby controlling the operation of the heating element. The airflow sensor belongs to one of core components in the electronic cigarette, and the service performance and the service life of the airflow sensor obviously influence the overall use experience of the electronic cigarette. However, after a long period of use, it has been found that such airflow sensors are very susceptible to drift or malfunction and fail to feed back the correct capacitance value for the airflow. After extensive analysis, it was found that external dirt is very likely to enter the metal can along with the airflow caused by the air suction action and adhere to a functional component arranged in the metal can, such as a space between the conductive film and the conductive back plate, so as to affect the insulation of an intermediate medium between the conductive film and the conductive back plate, and the airflow sensor fails to function.

In view of the above problems, there is a need to provide a solution that can block the random flow of external contaminants inside the sensor and controller, thereby providing a feasible technical basis for effectively maintaining the sensitivity and the service life of the sensor and controller. In view of the above, the present invention provides an antifouling improved sensor and controller, including a cylindrical metal casing, wherein a control circuit board and a capacitor unit for sensing air pressure are sequentially arranged in the casing from top to bottom, and the capacitor unit includes a capacitor plate located below the control circuit board and a capacitor moving diaphragm located below the capacitor plate and arranged in parallel, the control circuit board is provided with a first board through hole, and the first board through hole is used for communicating upper and lower spaces of the control circuit board; the control circuit board is characterized by further comprising a dirt blocking membrane with micropores, wherein the dirt blocking membrane covers the first board through hole and is used for blocking external dirt from entering a space below the control circuit board from the first board through hole and enabling the air to pass through the micropores so as to conduct air pressure on two sides of the control circuit board.

The dirt blocking membrane covers the first plate through hole, the above characteristics define the position relationship between the dirt blocking membrane and the first plate through hole, for example, the dirt blocking membrane can be selectively arranged above or below the first plate through hole or arranged in a cavity of the first plate through hole. Like this, keep off dirty diaphragm to passing through first board through-hole enters into the gas in control circuit board below space filters, filters outside filth.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: owing to be provided with keep off dirty diaphragm, it covers to keep off dirty diaphragm the first board through-hole, like this keep off and can block outside filth under the filtering action of dirty diaphragm and pass through first board through-hole enters into control circuit board below space, thereby can prolong control circuit board's below space maintains the length of time of qualified cleanliness factor. If the functional component is arranged in the lower space of the control circuit board, by utilizing the characteristics, a clean environment which is favorable for maintaining the functional effectiveness of the functional component can be provided for the functional component arranged in the lower space of the control circuit board for a long time, so that the sensitivity and the service life of the sensor and controller are also favorably maintained. It can be seen that the present invention provides a viable technical basis for effectively maintaining the sensitivity and lifetime of the sensing and control unit. In addition, the dirt blocking membrane can allow gas to pass through the micropores of the dirt blocking membrane to conduct the air pressure on two sides of the dirt blocking membrane, so that the change of the air pressure on one side of the control circuit board can cause the change of the air pressure on the other side of the control circuit board in the same trend, and the air in the space above the control circuit board can be supplied to the space below the control circuit board or the air in the space below the control circuit board can be discharged to the space above the control circuit board; further alternatively, when the air pressure sensing member may be, for example, the capacitor unit disposed in the space below the control circuit board, the capacitor unit may be configured to output different electrical signals in response to a change in air pressure in the space above the control circuit board in time.

In a further aspect, a shallow recess may be provided on an outer surface of the peripheral wall located at the first plate through hole, and the dirt blocking diaphragm may be disposed in the shallow recess. Can utilize like this shallow pit location keep off dirty diaphragm, improve keep off the installation stability of dirty diaphragm, increase keep off dirty diaphragm and peel off under the air current strikes the degree of difficulty of first board through-hole.

Further technical solution may also be that the outer case has an upper opening portion at which the control circuit board is disposed. Therefore, the heat dissipation of the control circuit board is facilitated, the upper opening part can be covered by the control circuit board optionally, and the structure of the sensor and the controller is simplified.

The further technical scheme can also be that an annular upper skirt edge extending inwards is arranged at the position of an upper opening part of the outer shell, and the control circuit board is positioned below the annular upper skirt edge. Thus, the annular upper skirt can prevent the control circuit board from passing through the upper opening part and being separated from the outer shell; in addition, if the mode that the control circuit board is contacted with the annular upper skirt edge is selected, the metal outer shell with the conductive physical property can be selected to be used for carrying out electric signal transmission with the control circuit in the control circuit board.

In order to prevent external dirt from entering the outer shell through the lower opening portion when the lower opening portion of the outer shell is in an open state, a further technical scheme may be that the lower opening portion of the outer shell has an annular lower skirt extending inwards and further includes a dirt blocking sheet having micropores, and the dirt blocking sheet is connected to the lower skirt and seals the lower opening portion of the outer shell; the dirt blocking sheet is used for blocking external dirt from entering the outer shell from the lower opening part of the outer shell, and can transmit air pressure on two sides of the outer shell through the micropores of the dirt blocking sheet. According to the technical scheme, the dirt blocking sheet can be used for blocking outside dirt outside the outer shell, so that the pollution to internal components of the outer shell, particularly the capacitor unit, is reduced, and the sensitivity and the service life of the capacitor unit are favorably maintained.

As for the structure of the capacitor unit can be various, for example, the following technical scheme can be further adopted, an annular insulating gasket is arranged between the capacitor plate and the capacitor movable diaphragm, so that a polar distance space is formed between the capacitor plate and the capacitor movable diaphragm, a second plate through hole is formed in the capacitor plate, the second plate through hole is used for communicating the space above the capacitor plate with the polar distance space, and the capacitor plate and the capacitor movable diaphragm are respectively connected with a control circuit in the control circuit board through electric signals as two poles of the capacitor unit.

The capacitance plate and the capacitance movable diaphragm are located below the control circuit board, so that the capacitance plate and the capacitance movable diaphragm can maintain cleanliness for a long time and are not easily polluted by external dirt to influence sensing precision and service life. In addition, because the second plate through hole is formed in the capacitor polar plate, the polar distance space is communicated with the external space of the sensing and control device through the first plate through hole and the second plate through hole, the plate through hole is used for transmitting the changed air pressure caused by the air suction action to the capacitor movable diaphragm, and the capacitor movable diaphragm timely responds to the air pressure change of the upper side and the lower side of the capacitor movable diaphragm to deform.

In view of the above, a further technical solution may be that the lower opening portion of the outer casing has an annular lower skirt extending inward, the capacitive movable diaphragm is located above the lower skirt and electrically connected to the lower skirt, and a sealing layer is disposed between the capacitive movable diaphragm and the lower skirt, the sealing layer is used for preventing dirt from penetrating into a polar distance space between the capacitive movable diaphragm and the capacitive polar plate from an upper surface of the lower skirt through a gap between the capacitive movable diaphragm and the outer casing, and the sealing layer does not interfere with the electrical connection between the capacitive movable diaphragm and the lower skirt.

Wherein the lower opening portion of the outer housing has an annular lower skirt extending inwardly such that the annular lower skirt can be used to support a component, such as the capacitive moving diaphragm, housed within the metal outer housing. And secondly, a sealing layer is arranged between the capacitive movable diaphragm and the lower skirt edge, and the sealing layer axially (in the vertical direction) seals a gap between the capacitive movable diaphragm and the lower skirt edge. Of course, the sealing layer can also be further extended radially and attached to the cylinder side wall of the outer shell for radial sealing. In addition, the gap between the capacitive moving diaphragm and the outer shell comprises a gap between the capacitive moving diaphragm and the lower skirt and a gap between the capacitive moving diaphragm and the cylinder side wall of the outer shell. According to the technical scheme, firstly, the sensing air flow does not pass through the outer shell but flows around the outside of the outer shell, the air pressure variation caused by the air flow is utilized instead of the flow rate and the power of the fluid for impacting the capacitive movable diaphragm, namely the capacitive movable diaphragm or the capacitive polar plate cannot become a windward device directly exposed in the flowing air flow, and therefore the pollution chance is greatly reduced; secondly, because the annular lower skirt edge and the side edge (also called as the lower edge) of the outer shell where the capacitive movable diaphragm is located are always windward, a sealing layer is arranged between the capacitive movable diaphragm and the lower skirt edge and used for preventing dirt from permeating into a polar distance space between the capacitive movable diaphragm and the capacitive polar plate, so that even if dirt possibly enters the outer shell from the lower edge of the outer shell, the sealing layer can also prevent the dirt from permeating into the polar distance space, the capacitive movable diaphragm and the capacitive polar plate can be maintained in a capacitance characteristic, and the service life of the sensor and the controller can be effectively prolonged.

As for the structure of the capacitance moving diaphragm, there may be various structures, for example, a technical solution may further be adopted, in which the lower opening portion of the outer casing has an annular lower skirt extending inward, the capacitance moving diaphragm is in a disk shape and includes a metal base ring in an annular shape and a thin film sheet arranged on an upper end face of the base ring, a metal film layer is provided on the thin film sheet, the metal film layer is located on an inner side face of the thin film sheet facing one side of the base ring and electrically connected to the base ring, a lower end face of the base ring faces the annular lower skirt, and the base ring rests on the annular lower skirt.

The metal base ring is a framework of the capacitance moving diaphragm, can support, fix and tighten the diaphragm and a metal film layer arranged on the diaphragm, can be conveniently installed on the sensing and control device by utilizing the metal base ring, reduces damage to the metal film layer caused by direct contact of the metal film layer in the installation process, can also conduct an electric signal of the metal film layer, and can also be an avoidance space when the metal film layer deforms and extends; in addition, the thin film sheet becomes a carrier for bearing the metal film layer, and the metal film layer can optimize the deformation performance and the recovery performance of the metal film layer by utilizing the physical characteristics of the thin film sheet through a layout structure arranged on the thin film sheet; and secondly, the metal film layer is positioned on the inner side surface of the thin film sheet facing to one side of the base ring, so that the insulating property of the thin film sheet is utilized to prevent short circuit between the base ring and the capacitor plate and between the metal film layer and the capacitor plate, and the capacitor property can be ensured to be kept between the metal film layer and the capacitor plate. According to the technical scheme, the capacitor moving diaphragm has the characteristic of soft and hard, and the installation convenience is further met on the basis of meeting the elastic requirement.

The technical scheme can also be that an annular conducting ring is arranged between the control circuit board and the capacitor plates, the capacitor plates are correspondingly arranged and allowed up and down between the conducting rings, the conducting rings are respectively arranged with the capacitor plates and have insulation intervals between the outer shells, the conducting rings not only allow an electric signal port of the control circuit board to be electrically connected with the capacitor plates, but also allow the control circuit board and the capacitor plates to have an upper and lower interval in the up and down direction. Therefore, the electric connection structure and the installation operation between one electric signal port of the control circuit board and the capacitor plate are simplified, the heat dissipation distance between the control circuit board and the capacitor plate can be formed by means of the interval distance, and the heat dissipation efficiency is favorably improved.

In addition, the invention also provides an electronic cigarette applying the antifouling improved sensor and controller, which is characterized by comprising a cigarette rod shell, wherein the sensor and controller, a control unit and an atomization unit are arranged in the cigarette rod shell; the atomization unit is used for carrying out atomization treatment on an atomization object, and the atomization object comprises liquid or a carrier containing the liquid; the sensing and control unit is used for responding to an inhalation action, generating inhalation electric signals with different heights corresponding to the air pressure change caused by the inhalation action and providing the inhalation electric signals with different heights to the control unit, and the control unit is used for correspondingly controlling the atomization amount or the atomization power of the atomization unit according to the heights of the inhalation electric signals.

The technical solution may further be that the upper and lower spaces of the capacitive moving diaphragm are configured to generate different air pressure changes in response to different inhalation actions, and the capacitive moving diaphragm is configured to deform correspondingly in response to the different air pressure changes, so that corresponding different capacitance variations occur between the capacitive plate and the capacitive moving diaphragm; and the control circuit in the control circuit board is used for picking up the capacitance variation with different sizes to generate corresponding electric signals with different heights and providing the electric signals with different heights to the control unit. According to the technical scheme, when airflow flows outside the outer shell, for example, the airflow flows from top to bottom outside the lower opening portion of the outer shell, the air pressure in the space below the capacitive moving diaphragm is reduced, and at the moment, the air pressures on the upper side and the lower side of the capacitive moving diaphragm are out of balance to drive the capacitive moving diaphragm to extend and deform downwards, so that the distance between the capacitive moving diaphragm and the capacitive pole plate is increased. On the contrary, when the air current flows from bottom to top outside the lower opening of the outer shell, the air pressure in the lower space is increased, and at the moment, the capacitor moving diaphragm extends upwards to deform, so that the distance between the capacitor moving diaphragm and the capacitor polar plate is reduced.

The further technical scheme can also be that the air conditioner further comprises a filtering circuit, wherein the filtering circuit is used for filtering noise signals caused by non-air suction actions and only providing the air suction electric signals with different heights to the control unit.

Due to the characteristics and the advantages, the invention can be applied to the sensing and control device with the antifouling function and the electronic cigarette product.

Drawings

Fig. 1 is a schematic structural diagram of an electronic cigarette to which the technical solution of the present invention is applied;

FIG. 2 is a schematic diagram of an exploded view of an integrated sensor and controller 100 embodying aspects of the present invention;

FIG. 3 is a schematic cross-sectional view of the integrated sensor and controller 100;

FIG. 4 is an enlarged view of the portion A of FIG. 3;

FIG. 5 is a schematic sectional view of the capacitive diaphragm 5;

FIG. 6 is a schematic diagram of the integrated sensor and controller 100 in the air flow induced by the inspiratory effort;

FIG. 7 is a schematic diagram of the integrated sensor and controller 100 in the flow of air induced by the exhalation maneuver;

fig. 8 is a schematic sectional view of the control circuit board 3a with the contamination barrier 300;

FIG. 9 is a circuit layout diagram of the integrated sensor and controller 100;

figure 10 is a schematic structural view of another electronic cigarette to which the technical solution of the present invention is applied;

figure 11 is a schematic diagram of a prior art electronic cigarette;

fig. 12 is a schematic structural view of an airflow sensor of a conventional electronic cigarette.

Detailed Description

The structure of the integrated sensor and controller 100 and the electronic cigarette using the same according to the present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, the present invention provides an electronic cigarette applying the integrated sensor and controller 100, which includes a cigarette rod housing 1, wherein the cigarette rod housing 1 is provided with the integrated sensor and controller 100, a control unit 35 (not shown in the figure), and an atomizing unit 11, the atomizing unit 11 is configured to atomize an atomizing object 12, and the atomizing object 12 includes a liquid or a carrier containing the liquid. The integrated sensing and control device 100 is configured to generate an electrical inspiration signal with different heights corresponding to the magnitude of the air pressure change caused by the inspiration action in response to the inspiration action and provide the electrical inspiration signal with different heights to the control unit 35, and the control unit 35 is configured to correspondingly control the atomization amount or the atomization power of the atomization unit 11 according to the heights of the electrical inspiration signals. The inspiration electric signal with different heights is a voltage signal, but can also be a current signal or a frequency signal in other embodiments. A filter circuit 36 is also included, the filter circuit 36 being configured to filter out noise signals caused by non-inhalation events and to provide only the electrical inhalation signals of different levels to the control unit 35. The filter circuit 36 may be provided in the control unit 35, or may be provided in a control IC (integrated circuit) 33 of the control circuit board 3 to be discussed below.

Focusing on the detailed structure of the integrated sensor and controller 100, as shown in fig. 2 and 3, the integrated sensor and controller 100 includes a metal outer housing 2 having a cylindrical shape, and the metal outer housing 2 has upper and lower opening portions and an inner cylindrical cavity communicating the upper and lower opening portions. Control circuit board 3, be located in proper order from the top down in the inner tube intracavity of shell body 2 capacitor unit C of 3 below of control circuit board, capacitor unit C includes capacitor plate 4, electric capacity and moves diaphragm 5, capacitor plate 4 is located control circuit board 3's below, electric capacity moves diaphragm 5 and is located capacitor plate 4 below and parallel arrangement between them, capacitor plate 4 with capacitor unit C that diaphragm 5 constitutes is moved in the electric capacity is used for the response to breathe in the action and lead to atmospheric pressure to change. The control circuit board 3 is a PCB circuit board including a common electronic circuit 34, the control circuit in the control circuit board 3 is divided into two parts, namely the common electronic circuit 34 and a control IC33 in signal connection with the common electronic circuit 34, and the control IC33 belongs to a microelectronic control circuit, namely a chip; the capacitor unit C is electrically connected to a capacitor connection circuit, such as an LC \ RLC oscillator circuit 34, in the common electronic circuit 34, the common electronic circuit 34 is configured to electrically connect two poles of the capacitor unit C, receive a variable capacitor signal output by the capacitor unit C to generate different oscillator electrical signals (such as a frequency signal, a current signal, etc.), and provide 1 or 2 of the different oscillator electrical signals to the control IC33, and the control IC33 further performs corresponding subsequent control, such as driving the atomizing unit to operate, according to the different oscillator electrical signals caused by the change in capacitance. And a signal conditioning filter circuit or a comparison circuit and the like can be arranged between the LC \ RLC oscillator circuit and the control IC 33.

Of course, in a possible solution, the control unit 35 may also be disposed on the control circuit board 3, or the control unit 35 and the control IC33 may be combined into a single unit and disposed entirely on the control circuit board 3, or the control unit 35 and the control IC33 may be disposed entirely outside the control circuit board 3 at the same time.

Capacitance polar plate 4 with insulation interval 201 has between shell body 2 control circuit board 3 with be provided with between the capacitance polar plate 4 and be annular conducting ring 8, capacitance polar plate 4 with correspond about between the conducting ring 8 and arrange and let conducting ring 8 with also have between the shell body 2 insulation interval 201, conducting ring 8 not only lets control circuit board 3's first signal of telecommunication port 31 with form the electricity between the capacitance polar plate 4 and be connected, also lets control circuit board 3 with interval 202 about having on the upper and lower direction between the capacitance polar plate 4. The control IC33 is located beneath the control circuit board 3 and extends into the up-down spacing 202 defined by the conductive loop 8. This advantageously protects the control IC33 from damage from impact by foreign objects and also reduces the overall volume of the integrated sensor and controller 100. An annular insulating ring 7 is further arranged in the outer shell 2, and the insulating ring 7 is located between the capacitor plate 4 and the conductive ring 8 and the outer shell 2 in the insulating space 201. The top of the insulating ring 7 does not contact the control circuit board 3. Therefore, a space is arranged between the top of the insulating ring 7 and the control circuit board 3 in the vertical direction, and even if a manufacturing error occurs in the height of the insulating ring 7, the insulating ring 7 does not press against the control circuit board 3 to affect the electrical connection between the control circuit board 3 and the conductive ring 8. The insulating ring 7 is tightly fitted on the capacitor plate 4, so that the insulating ring 7 can also be axially positioned by means of the capacitor plate 4, and the insulating ring 7 is difficult to move between the control circuit board 3 and the capacitor plate 4. Of course, in other embodiments, the insulating ring 7 may also be fitted on the conductive ring 8. According to the above technical solution, the insulating ring 7 is located in the insulating space 201 between the capacitor plate 4, the conductive ring 8 and the outer casing 2. In this way, the insulating ring 7 can not only prevent the capacitor plate 4 and the conductive ring 8 from being in direct contact with the outer casing 2, which causes a short circuit due to the circuit connection between the capacitor plate 4 and the second electrical signal port 32 of the control circuit board 3, which will be discussed below, but also limit the capacitor plate 4 and the conductive ring 8 in the inner ring space thereof, so as to define a space in which the capacitor plate 4 and the conductive ring 8 can move radially relative to each other, and prevent the capacitor plate 4 and the conductive ring 8 from being separated from each other due to a large amount of offset in the radial direction, thereby preventing the stability of electrical connection therebetween from being affected.

As shown in fig. 3, 4 and 5, the upper opening portion of the outer casing 2 is provided with an annular upper skirt 21 extending inward, the control circuit board 3 is arranged at the upper opening portion and below the upper skirt 21, and the second electrical signal port 32 of the control circuit board 3 is electrically connected to the upper skirt 21. The lower opening part of the outer shell 2 is provided with an annular lower skirt 22 extending inwards, the capacitor moving diaphragm 5 is positioned above the lower skirt 22 and is electrically connected with the lower skirt 22, so that the capacitor plate 4 and the capacitor moving diaphragm 5 are respectively connected with a control circuit electric signal in the control circuit board 3 as two poles of a capacitor unit C. An annular insulating gasket 9 is arranged between the capacitor plate 4 and the capacitor movable diaphragm 5, so that a polar distance space 200 is formed between the capacitor plate 4 and the capacitor movable diaphragm 5. The capacitive movable diaphragm 5 is in a disc shape and comprises a metal base ring 51 in a ring shape and a thin film sheet 52 arranged on the upper end face of the metal base ring 51, a metal film layer 53 is arranged on the thin film sheet 52, the metal film layer 53 is positioned on the inner side face of the thin film sheet 52 facing one side of the base ring 51 and is electrically connected with the base ring 51, the lower end face of the base ring 51 faces the lower skirt 22 and rests on the annular lower skirt 22, and the base ring 51 is electrically connected with the lower skirt 22.

The metal base ring 51 serves as a framework of the capacitive moving diaphragm 5, and can support, fix, and tighten the diaphragm 52 and the metal film layer 53 provided on the diaphragm 52. Moreover, the metal film layer 53 can be conveniently installed on the integrated sensor and controller 100 by using the metal base ring 51, and damage to the metal film layer 53 caused by direct contact during installation is reduced. Next, the space inside the ring of the metal base ring 51 may be a space to be avoided when the metal film layer 53 is deformed and expanded. In addition, the metal base ring 51 can also conduct the electrical signal of the metal film layer 53. Secondly, the thin film sheet 52 becomes a carrier for carrying the metal film layer 53, and the metal film layer 53 can optimize the deformation performance and the recovery performance of the thin film sheet 52 by utilizing the physical characteristics of the thin film sheet 52 through the layout structure arranged on the thin film sheet 52. Further, the metal film layer 53 is located on the inner surface of the thin film piece 52 facing the ground ring 51, so that short circuit between the ground ring 51 and the metal film layer 53 and the capacitor plate 4 is prevented by the insulating property of the thin film piece 52, and the capacitor characteristic can be secured between the metal film layer 53 and the capacitor plate 4. According to the above technical solution, the capacitive moving diaphragm 5 has a suitable structural strength by the metal base ring 51, and the metal film layer 53 is provided on the thin film piece 52, so that the metal film layer 53 can have a chargeable characteristic by utilizing its own metal characteristic, and the deformation performance and the recovery performance of the metal film layer 53 are optimized by utilizing the physical characteristics of the thin film piece 52. The capacitance moving diaphragm 5 has the characteristic of soft and hard, and meets the installation convenience on the basis of meeting the elasticity requirement.

As shown in fig. 2 and 3, a first plate through hole 30 is formed in the control circuit board 3, the first plate through hole 30 is used for communicating the upper and lower spaces of the control circuit board 3, a second plate through hole 40 is formed in the capacitor plate 4, and the second plate through hole 40 is used for communicating the space above the capacitor plate 4, i.e., the space at the upper and lower intervals 202, with the polar distance space 200. Thus, the polar distance space 200 is communicated to the external space outside the outer shell 2 through the first plate through hole 30 and the second plate through hole 40, the plate through holes (30, 40) on the control circuit board 3 and the capacitor plate 4 can transmit the changed air pressure caused by the air suction action to the capacitor moving diaphragm 5, and the metal film layer 53 of the capacitor moving diaphragm 5 deforms in response to the air pressure change on the upper side and the lower side of the metal film layer. Specifically, as shown in fig. 3, 6 and 7, the air flow outside the outer shell 2 is induced by the air suction action, when the air flow flows from top to bottom outside the lower opening portion of the outer shell 2, the air pressures in the lower space a of the outer shell 2 and the space b located in the outer shell 2 and below the capacitive moving diaphragm 5 are smaller than the air pressure in the polar distance space 200, and at this time, the air pressures on the upper and lower sides of the capacitive moving diaphragm 5 lose balance to drive the metal film layer 53 of the capacitive moving diaphragm 5 to extend and deform downward, so as to increase the polar distance between the metal film layer 53 and the capacitive pole plate 4. On the contrary, when the exhalation action causes the air current to flow from bottom to top in the outside of the lower opening portion of the outer shell 2, the air pressure in the lower space (a, b) is greater than the air pressure in the polar distance space 200, and at this time, the metal film layer 53 of the capacitor moving diaphragm 5 extends upwards and deforms, so as to reduce the polar distance between the metal film layer 53 and the capacitor plate 4, but the polar distance space 200, the upper and lower interval space 202 space and the lower space b cannot be communicated through the capacitor moving diaphragm 5.

Based on the above structural description, it can be seen that the upper space, i.e., the polar distance space 200, the vertical spacing distance 202 space, and the lower space b of the capacitive movable diaphragm 5 are configured to generate different air pressure changes in response to different sizes of inhalation actions, and the metal film layer 53 of the capacitive movable diaphragm 5 is configured to deform correspondingly in response to the different air pressure changes in the outer casing 2, so that corresponding different capacitance changes occur between the capacitive plate 4 and the capacitive movable diaphragm 5; the common electronic circuit 34 in the control circuit board 3 is configured to pick up the capacitance variation with different sizes to generate corresponding electrical signals with different heights, provide the electrical signals with different heights to the control IC33, and provide the electrical signals with different heights to the control unit 35 after being processed by the control IC 33. Of course, in a possible solution, the control unit 35 and the control IC33 may be combined into one and all disposed on the control circuit board 3.

As shown in fig. 8, in order to prevent external contaminants from entering the metal casing 2 through the first board through hole 30, the structure of the control circuit board 3 is further modified, and for convenience of distinction, the modified control circuit board is labeled as a control circuit board 3 a. The control circuit board 3a includes a barrier film 300 having a micro-hole, and a shallow recess (not marked in the drawing, but blocked by the barrier film 300) is provided on the outer surface of the peripheral wall of the first board through-hole 30, and the barrier film 300 is disposed in the shallow recess so as to cover the first board through-hole 30. The contamination barrier 300 is used to prevent external contaminants from entering the space under the control circuit board 3a from the first board through hole 30, but can transmit gas pressure on both sides thereof by passing gas through the minute holes thereof. Therefore, the cleanliness of the space below the control circuit board 3a can be maintained for a long time, and a clean environment which is beneficial to maintaining the functional effectiveness is provided for the capacitor unit C arranged in the space below the control circuit board 3a, so that the sensitivity and the service life of the integrated sensor and controller can be effectively maintained for a long time.

If external contaminants enter the polar distance space 200 between the capacitor plate 4 and the capacitor moving diaphragm 5 to reduce the insulation of the intermediate medium between the capacitor plate 4 and the capacitor moving diaphragm 5, the function failure of the integrated sensor and controller is likely to be caused. In view of this further technical solution, a sealing layer 6 is disposed between the base ring 51 and the lower skirt 22 of the capacitive movable diaphragm 5, a lower end surface of the base ring 51 faces the sealing layer 6, the sealing layer 6 is an annular sealing rubber ring, and in other embodiments, the sealing layer 6 may also be an adhesive layer. The sealing layer 6 is used to prevent dirt from penetrating into the polar distance space 200 between the capacitive moving diaphragm 5 and the capacitive plate 4 from the upper surface of the lower skirt 22 through the gap between the base ring 51 of the capacitive moving diaphragm 5 and the outer housing 2.

According to the technical scheme, the integrated sensing and controller 100 does not allow the sensed airflow to pass through the outer shell 2 but flows around the outside of the outer shell 2, and utilizes the power of the capacitive dynamic diaphragm 5 impacted by the change of the air pressure caused by the flowing of the airflow instead of the change of the flow and the impact of the fluid on the capacitive dynamic diaphragm 5, namely the capacitive dynamic diaphragm 5 or the capacitive pole plate 4 cannot become a windward device directly exposed in the flowing airflow field, and the capacitive dynamic diaphragm 5 mainly senses the change of the air pressure at two sides, so that the pollution probability is greatly reduced; secondly, because the side (also called as the lower side) of the outer casing 2 where the annular lower skirt 22 and the capacitive movable diaphragm 5 are located is often the windward side, the sealing layer 6 is arranged between the capacitive movable diaphragm 5 and the lower skirt 22, and the sealing layer 6 is used for preventing dirt from permeating into the polar distance space 200 between the capacitive movable diaphragm 5 and the capacitive polar plate 4, so that even if dirt enters into the outer casing 2 from the lower side of the outer casing 2, the sealing layer 6 can also prevent the dirt from permeating into the polar distance space 200, which is beneficial to maintaining the capacitance characteristic between the capacitive movable diaphragm 5 and the capacitive polar plate 4 for a long time and effectively prolonging the service life of the integrated sensor and controller 100.

The sealing layer 6 is further made of a material having a conductive property so that the sealing layer 6 does not interfere with the electrical connection between the base ring 51 of the capacitive diaphragm 5 and the outer case 2. In this way, the sealing layer 6 not only can enhance the sealing performance between the base ring 51 and the lower skirt 22, but also can conduct the electrical signal between the base ring 51 and the lower skirt 22 by utilizing the conductivity thereof, so as to form an axial contact type (i.e. up and down direction) electrical signal connection structure between the base ring 51 and the outer shell 2. Compared with the radial contact type electric signal connection structure formed by radially contacting the base ring 51 with the outer shell 2, the invention can reduce the bad phenomena of unstable and even failure electric signal connection caused by bad contact caused by manufacturing error and assembly error.

As shown in fig. 3, the portable electronic device further comprises a dirt blocking sheet 91, the dirt blocking sheet 91 has micropores, and the dirt blocking sheet 91 is connected to the lower skirt 22 and blocks the lower opening of the outer housing 2; the dirt blocking sheet 91 is used to block external dirt from entering the outer casing 2 from the lower opening portion of the outer casing 2, but can transmit air pressure to both sides thereof by passing air through the micropores thereof. In this way, the dirt blocking sheet 91 can block external dirt outside the outer casing 2, thereby reducing the contamination of the internal components of the outer casing 2, particularly the capacitor unit C, and facilitating the maintenance of the sensitivity and the service life of the capacitor unit C.

In order to enhance the axial matching stability among the control circuit board 3, the conducting ring 8, the capacitor plate 4, the capacitor moving diaphragm 5 and the sealing layer 6, the upper skirt 21 and the lower skirt 22 are matched to compress the control circuit board 3, the conducting ring 8, the capacitor plate 4, the capacitor moving diaphragm 5 and the sealing layer 6 which are positioned in the outer shell 2 and sequentially arranged in the vertical direction. The upper skirt 21 is disposed to be slightly inclined toward the center of the outer housing 2 (of course, in other embodiments, the lower skirt 22 may be disposed to be slightly inclined toward the center of the outer housing 2). In this way, the outer casing 2 not only can be an electric conductor electrically connecting the control circuit board 3 and the capacitive movable diaphragm 5, but also can axially position the control circuit board 3, the conducting ring 8, the capacitive polar plate 4, the capacitive movable diaphragm 5 and the sealing layer 6 by pressing the upper skirt 21 and the lower skirt 22 up and down, reduce the moving gap of the control circuit board 3, the conducting ring 8, the capacitive polar plate 4, the capacitive movable diaphragm 5 and the sealing layer 6 in the axial direction, thereby reducing the axial shake of the control circuit board 3, the conducting ring 8, the capacitive polar plate 4, the capacitive movable diaphragm 5 and the sealing layer 6, effectively improve the axial positioning stability of the control circuit board 3, the conducting ring 8, the capacitive polar plate 4, the capacitive movable diaphragm 5 and the sealing layer 6 with a very simple structure, and improve the electric connection stability between the control circuit board 3 and the upper skirt 21, the conducting ring 8 is respectively connected with the control circuit board 3 and the capacitor plate 4 in an electric manner, and the capacitive movable diaphragm 5 is connected with the lower skirt 22 in a mechanical and electric manner. In addition, the above-mentioned assembly method is also advantageous to simplify the assembly structure and operation of the integrated sensor and controller 100.

The present invention also provides another electronic cigarette product, as shown in fig. 10, including a cigarette rod housing 1a, a cartridge 14a detachably disposed on the cigarette rod housing 1a, and the integrated sensor and controller 100. The cartridge 14a includes a liquid and an atomizing unit (not shown) for atomizing the liquid. The cigarette rod casing 1a is barrel-shaped and has an annular barrel side wall 107a and a barrel bottom wall 108a for blocking the bottom end, a barrel inner cavity is formed between the barrel side wall 107a and the barrel bottom wall 108a, a middle partition wall 106a for dividing the barrel inner cavity into an upper cavity 109a and a lower cavity is arranged in the barrel inner cavity, the upper cavity has an upper opening, and the cigarette cartridge 14a passes through the upper opening and is inserted into the upper cavity 109 a. The integrated sensor and controller 100 is disposed within the lower chamber. A spacer ring 101a is arranged between the inner side wall of the lower cavity and the integrated sensing and controller 100, the spacer ring 101a is located in the middle of the integrated sensing and controller 100 and divides the lower cavity into a first lower cavity 102a and a second lower cavity 103a which are vertically separated, and the second lower cavity 103a is a sealed space. The cartridge 14a is provided with an inner airflow channel 140a, the side wall 107a of the barrel is provided with a first wall hole 105a, the intermediate partition wall 106a is provided with a second wall hole 104a, and the first wall hole 105a and the second wall hole 104a are respectively communicated with the inner airflow channel 140 a.

When the mouth of a person sucks the air in the inner air flow channel 140a, the external air enters the inner air flow channel 140a through the first wall hole 105a, the air in the first lower cavity 102a is also sucked into the inner air flow channel 140a to form negative pressure, while the air pressure in the second lower cavity 103a is maintained substantially unchanged, at this time, the plate through holes (30, 40) on the control circuit board 3 and the capacitor plate 4 transmit the changed air pressure caused by the suction action to the capacitive movable diaphragm 5, the capacitive movable diaphragm 5 is deformed in time in response to the change of the air pressure on the upper and lower sides thereof, and the capacitance unit C can generate changed capacitance in response to the deformation of the capacitive movable diaphragm 5.

Claims

1. The antifouling improved sensor and controller comprises a cylindrical metal shell, wherein a control circuit board and a capacitor unit for sensing air pressure are sequentially arranged in the shell from top to bottom; still including having the dirty diaphragm of micropore, it covers to keep off dirty diaphragm the first board through-hole, it is used for blockking that outside filth from the first board through-hole enters into space below the control circuit board but can let gas pass through its micropore and conduct its atmospheric pressure on both sides to keep off dirty diaphragm.

2. The improved antifouling sensor and controller of claim 1, wherein a shallow recess is provided in the outer surface of the peripheral wall at said first plate through hole, said antifouling diaphragm being disposed in said shallow recess.

3. The antifouling improved sensor and controller according to claim 1 or 2, wherein said outer case has an upper opening portion, and said control circuit board is disposed at said upper opening portion.

4. The improved antifouling sensor and controller as set forth in claim 3, wherein said outer case has an upper opening portion with an annular upper skirt extending inward, and said control circuit board is disposed under said annular upper skirt.

5. The improved antifouling sensor and controller according to claim 4, wherein the lower opening portion of said outer housing has an annular lower skirt extending inwardly, and further comprising a antifouling sheet having micropores, said antifouling sheet being attached to said lower skirt and sealing off the lower opening portion of said outer housing; the dirt blocking sheet is used for blocking external dirt from entering the outer shell from the lower opening part of the outer shell, and can transmit air pressure on two sides of the outer shell through the micropores of the dirt blocking sheet.

6. The improved antifouling sensor and controller as set forth in claim 4, wherein an annular insulating spacer is disposed between said capacitor plate and said movable capacitive diaphragm to provide a polar space between said capacitor plate and said movable capacitive diaphragm, said capacitor plate is provided with a second plate through hole for communicating said space above said capacitor plate with said polar space, and said capacitor plate and said movable capacitive diaphragm are electrically connected to a control circuit in said control circuit board as two poles of a capacitor unit.

7. The antifouling improved sensor and controller as set forth in claim 6, wherein said lower opening portion of said outer housing has an inwardly extending annular lower skirt, said capacitive moving diaphragm is located above said lower skirt and electrically connected to said lower skirt, and a sealing layer is provided between said capacitive moving diaphragm and said lower skirt for preventing contaminants from penetrating from an upper surface of said lower skirt into a polar space between said capacitive moving diaphragm and said capacitive plates through a gap between said capacitive moving diaphragm and said outer housing, said sealing layer not interfering with electrical connection between said capacitive moving diaphragm and said lower skirt.

8. The antifouling improved sensor and controller as set forth in claim 6, wherein the lower opening portion of the outer housing has an annular lower skirt extending inward, the capacitive movable diaphragm is in the shape of a disk and comprises a metal base ring in the shape of a ring and a thin film sheet arranged on the upper end face of the base ring, a metal film layer is disposed on the thin film sheet, the metal film layer is located on the inner side face of the thin film sheet facing the side of the base ring and electrically connects the base ring, the lower end face of the base ring faces the annular lower skirt, and the base ring rests on the annular lower skirt.

9. The antifouling improved sensor and controller as claimed in claim 6, wherein a ring-shaped conductive ring is disposed between the control circuit board and the capacitor plate, the capacitor plate and the conductive ring are disposed in an up-down correspondence, and the conductive ring and the capacitor plate are respectively spaced from the outer casing by an insulation distance, the conductive ring not only electrically connects an electrical signal port of the control circuit board to the capacitor plate, but also vertically spaces the control circuit board and the capacitor plate.

10. The electronic cigarette applying the antifouling improved sensor and controller as claimed in any one of claims 1 to 9, characterized by comprising a cigarette rod housing, wherein the sensor and controller, the control unit and the atomization unit are arranged in the cigarette rod housing; the atomization unit is used for carrying out atomization treatment on an atomization object, and the atomization object comprises liquid or a carrier containing the liquid; the sensing and control unit is used for responding to an inhalation action, generating inhalation electric signals with different heights corresponding to the air pressure change caused by the inhalation action and providing the inhalation electric signals with different heights to the control unit, and the control unit is used for correspondingly controlling the atomization amount or the atomization power of the atomization unit according to the heights of the inhalation electric signals.

11. The electronic cigarette of claim 10, wherein the upper and lower spaces of the capacitive moving diaphragm are configured to generate different air pressure changes in response to different inhalation actions, and the capacitive moving diaphragm is configured to deform in response to the different air pressure changes so as to generate corresponding different capacitance changes between the capacitive plate and the capacitive moving diaphragm; and the control circuit in the control circuit board is used for picking up the capacitance variation with different sizes to generate corresponding electric signals with different heights and providing the electric signals with different heights to the control unit.

12. The electronic cigarette of claim 11, further comprising a filter circuit for filtering noise signals resulting from non-inhalation but providing only said different levels of inhalation electrical signals to said control unit.