CN211091901U - Sensing and controller comprising circuit board and electronic cigarette applied to sensing and controller - Google Patents
Sensing and controller comprising circuit board and electronic cigarette applied to sensing and controller Download PDFInfo
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- CN211091901U CN211091901U CN201921864941.4U CN201921864941U CN211091901U CN 211091901 U CN211091901 U CN 211091901U CN 201921864941 U CN201921864941 U CN 201921864941U CN 211091901 U CN211091901 U CN 211091901U
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
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Abstract
The sensing and control device comprises a circuit board and an electronic cigarette applied to the circuit board, and comprises a metal outer shell; the air pressure control device is characterized in that a control circuit board and a capacitor unit are arranged in the outer shell, the capacitor unit is used for responding to an air pressure change signal caused by air suction action to generate a changed capacitor signal, a common electronic circuit and a control IC in signal connection with the common electronic circuit are arranged on the control circuit board, the capacitor unit is in electric signal connection with the common electronic circuit, the common electronic circuit is used for being electrically connected to two poles of the capacitor unit, the changed capacitor signal output by the capacitor unit is received to generate different oscillation electric signals, the different oscillation electric signals are provided for the control IC, and the control IC is used for implementing corresponding subsequent control according to the different oscillation electric signals provided by the common electronic circuit.
Description
Technical Field
The invention relates to a sensing and control device comprising a circuit board. The integrated sensor and controller can be widely applied to various electronic products, for example, the invention further relates to an electronic cigarette product.
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, there is disclosed in chinese patent No. 201080003430.9 an electronic cigarette, as shown in fig. 11 and 12, comprising an inhalation detector 100 for detecting airflow and direction, a battery 200, a smoke source, a heating element 300, and a mouthpiece 462, wherein the inhalation detector is a module assembly comprising an airflow sensor 120, an activation circuit, and a L ED light source, and all modules are mounted on a printed circuit board 140, the airflow sensor 120 comprises a rigid or semi-rigid conductive film 121 and a conductive back plate 122, the conductive film 121 is mounted in a spaced manner above the conductive back plate 122 and separated by an insulating spacer 123, 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 defines an air inlet and an air outlet at its axial ends, the air inlet and air outlet are defined at its ends, the air flow controller 120 controls airflow when airflow entering the metal can 126 and then flowing from bottom to top through the airflow sensor 120, the conductive film 120, the airflow sensor 120 is not controlled by a large airflow gap 201080003430.9, the airflow controller when airflow is observed over the printed circuit board 126.
Disclosure of Invention
In view of the above technical problems, the present invention provides an integrated sensor and controller including a circuit board, including a metal housing; the air pressure control device is characterized in that a control circuit board and a capacitor unit are arranged in the outer shell, the capacitor unit is used for generating a variable capacitor signal in response to an air pressure change signal caused by an air suction action, a common electronic circuit and a control IC in signal connection with the common electronic circuit are arranged on the control circuit board, the capacitor unit is in electric signal connection with the common electronic circuit, the common electronic circuit is used for being electrically connected to two poles of the capacitor unit, the variable capacitor signal output by the capacitor unit is received to generate different oscillation electric signals, the different oscillation electric signals are provided for the control IC, and the control IC is used for implementing corresponding subsequent control according to the different oscillation electric signals provided by the common electronic circuit.
According to the technical scheme, the invention has the beneficial technical effects that: because the control circuit board is provided with the circuit structure, the control IC can integrate various functional modules according to different oscillation electric signals to implement corresponding subsequent control, so that the circuit structure of the control circuit board can be simplified, the size of the control circuit board is smaller, and in addition, the control IC is arranged on the circuit board, thereby being beneficial to the heat dissipation of the control IC and effectively prolonging the service life of the control IC.
The technical scheme can also be that the capacitor unit comprises a capacitor plate and a capacitor moving diaphragm which is arranged below the capacitor plate in parallel, the capacitor moving diaphragm can deform along with the change of air pressure, the capacitor plate is arranged below the control circuit board, an upper interval and a lower interval are arranged between the control circuit board and the capacitor plate in the upper and lower directions, and the control IC is arranged below the control circuit board and extends into the upper and lower intervals. This is advantageous for protecting the control IC from damage due to collision with foreign objects, and also for reducing the overall volume of the integrated sensor and controller.
The control circuit board and the capacitor plate are respectively provided with a first plate through hole and a second plate through hole, and the first plate through hole and the second plate through hole are used for transmitting the changed air pressure caused by the air suction action to the capacitor movable diaphragm. According to the technical scheme, the first plate through hole and the second plate through hole are used for transmitting the changed air pressure caused by air suction to the capacitive movable diaphragm, the capacitive movable diaphragm can deform in response to the change of the air pressure on the upper side and the lower side of the capacitive movable diaphragm, and the capacitive unit can generate changed capacitance in response to the deformation of the capacitive movable diaphragm.
The technical scheme can also be that an insulation interval is arranged between the capacitor plates and the outer shell, an annular conducting ring is arranged between the control circuit board and the capacitor plates, the capacitor plates and the conducting ring are correspondingly arranged up and down to ensure that the conducting ring and the outer shell are also provided with the insulation interval, the conducting ring not only ensures that an electric signal port of the control circuit board is electrically connected with the capacitor plates, but also ensures that the control circuit board and the capacitor plates are formed in the up-down direction to ensure that the interval is arranged up and down. According to the technical scheme, the electric connection structure and the installation operation between one electric signal port of the control circuit board and the capacitor plate are simplified by utilizing the conducting ring, 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.
The technical scheme can also be that an annular insulating ring is arranged in the outer shell, and the insulating ring is positioned in the insulating space between the capacitor plate and the conductive ring and between the capacitor plate and the outer shell. According to the technical scheme, the insulating ring can avoid the capacitor plate and the conducting ring from being in direct contact with the outer shell to form electric connection, the capacitor plate and the conducting ring can be limited in the inner ring space of the insulating ring to limit the space in which the capacitor plate and the conducting ring can move in the radial direction, and the capacitor plate and the conducting ring are prevented from being deviated in the radial direction in a large amount and being separated from each other to influence the electric connection stability between the capacitor plate and the conducting ring.
The further technical scheme can also be that the top of the insulating ring is not contacted with the control circuit board. According to the technical scheme, the distance is configured between the top of the insulating ring and the control circuit board in the vertical direction, so that even if the height of the insulating ring has a manufacturing error, the insulating ring cannot be pressed on the control circuit board to influence the electric connection between the control circuit board and the conducting ring.
In addition, the invention also provides an electronic cigarette applying the integrated sensing and controller, which is characterized by comprising a cigarette rod shell, wherein the integrated sensing 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 integrated sensing and controller 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 control unit may be also disposed on the control circuit board, or the control unit and the control IC may be combined into one and disposed on the control circuit board.
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; the common electronic circuit 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.
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.
Further, the different levels of the inspiration electric signal can be a voltage signal, a current signal or a frequency signal.
Due to the characteristics and advantages, the invention can be applied to an integrated sensor and controller and an 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.
The following description focuses on the structure of the integrated sensor and controller 100, as shown in fig. 2 and 3, the integrated sensor and controller 100 includes a cylindrical metal outer housing 2, the metal outer housing 2 has an upper opening portion, a lower opening portion and an inner cylinder cavity communicating the upper opening portion and the lower opening portion, a control circuit board 3 and a capacitor unit C located below the control circuit board 3 are sequentially disposed in the inner cylinder cavity of the outer housing 2 from top to bottom, the capacitor unit C includes a capacitor plate 4 and a capacitor moving diaphragm 5, the capacitor plate 4 is located below the control circuit board 3, the capacitor moving diaphragm 5 is located below the capacitor plate 4 and is disposed in parallel with the capacitor plate 4, the capacitor unit C formed by the capacitor plate 4 and the capacitor moving diaphragm 5 is used for sensing a suction action to cause a change in air pressure, the control circuit board 3 is a PCB board containing a common electronic circuit 34, the control circuit board in the control circuit board 3 is divided into two parts, i.e., a common electronic circuit 34 and a control IC33 connected to the common electronic circuit 34, wherein the control circuit is divided into two parts, i.e., a common electronic circuit 34 and a filter IC33 connected to generate a corresponding working signal, wherein the filter IC 34 is connected to generate an oscillating signal, e.g., an oscillating signal 673, a corresponding oscillating signal, or an oscillating signal, which is used for comparing signal, such as an oscillating signal, wherein the oscillating control IC 673, wherein the oscillating circuit is connected to generate an oscillating signal, wherein the oscillating circuit, such as an oscillating circuit 673, a corresponding oscillating signal, e.g., a corresponding oscillating signal, a signal.
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 (9)
1. The integrated sensor and controller comprises a circuit board and a metal outer shell; the air pressure control device is characterized in that a control circuit board and a capacitor unit are arranged in the outer shell, the capacitor unit is used for generating a variable capacitor signal in response to an air pressure change signal caused by an air suction action, a common electronic circuit and a control IC in signal connection with the common electronic circuit are arranged on the control circuit board, the capacitor unit is in electric signal connection with the common electronic circuit, the common electronic circuit is electrically connected to two poles of the capacitor unit and used for receiving the variable capacitor signal output by the capacitor unit to generate different oscillation electric signals and providing the different oscillation electric signals to the control IC, the control IC is used for implementing corresponding subsequent control according to the different oscillation electric signals provided by the common electronic circuit, and the capacitor unit comprises a capacitor plate and a capacitor movable diaphragm which is arranged below the capacitor plate in parallel, the capacitance movable diaphragm can deform along with the change of air pressure, the capacitance polar plate is positioned below the control circuit board, an upper spacing interval and a lower spacing interval are arranged between the control circuit board and the capacitance polar plate in the upper and lower directions, and the control IC is positioned below the control circuit board and extends into the upper and lower spacing intervals.
2. The integrated sensor and controller of claim 1, wherein the control circuit board and the capacitor plate are respectively provided with a first plate through hole and a second plate through hole, and the first plate through hole and the second plate through hole are used for transmitting the variable air pressure caused by the air suction action to the capacitor moving diaphragm.
3. The integrated sensor and controller according to claim 1, wherein an insulation gap is formed between the capacitor plate and the outer casing, an annular conductive ring is disposed between the control circuit board and the capacitor plate, the capacitor plate and the conductive ring are correspondingly disposed up and down, so that the insulation gap is also formed between the conductive ring and the outer casing, and the conductive ring not only allows an electrical signal port of the control circuit board to be electrically connected to the capacitor plate, but also allows the control circuit board and the capacitor plate to be vertically spaced apart from each other.
4. The integrated sensor and controller of claim 3, wherein an annular insulating ring is further disposed within said outer housing, said insulating ring being located within said insulating gap between said capacitive plates, said conductive ring and said outer housing.
5. The integrated sensor and controller of claim 4, wherein the top of the insulating ring does not contact the control circuit board.
6. The electronic cigarette applying the integrated sensing and controller according to any one of claims 1 to 5, comprising a cigarette rod housing, wherein the integrated sensing and controller, a control unit and an 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 liquid; the integrated sensing and controller 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.
7. The electronic cigarette of claim 6, 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; the common electronic circuit 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.
8. The electronic cigarette of claim 7, 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.
9. The electronic cigarette of claim 6, 7 or 8, wherein the different high and low inhalation electrical signals are voltage signals, current signals or frequency signals.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019104826812 | 2019-06-04 | ||
| CN201910482681.2A CN110108408A (en) | 2019-06-04 | 2019-06-04 | The integrated sensing of anti-fouling type and controller and its applied electronics smoke product |
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| Publication Number | Publication Date |
|---|---|
| CN211091901U true CN211091901U (en) | 2020-07-28 |
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Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910482681.2A Pending CN110108408A (en) | 2019-06-04 | 2019-06-04 | The integrated sensing of anti-fouling type and controller and its applied electronics smoke product |
| CN201921864944.8U Active CN211091902U (en) | 2019-06-04 | 2019-11-01 | Electronic cigarette product applying integrated sensing and controller |
| CN201911060509.4A Pending CN110672250A (en) | 2019-06-04 | 2019-11-01 | Electronic cigarette product applying integrated sensing and controller |
| CN201911060580.2A Pending CN110672251A (en) | 2019-06-04 | 2019-11-01 | Sensing and controller comprising circuit board and electronic cigarette applied to sensing and controller |
| CN201921864941.4U Active CN211091901U (en) | 2019-06-04 | 2019-11-01 | Sensing and controller comprising circuit board and electronic cigarette applied to sensing and controller |
| CN201921870303.3U Active CN211121738U (en) | 2019-06-04 | 2019-11-01 | Antifouling type integrated sensing and controller and electronic cigarette product applying same |
| CN201911060963.XA Pending CN110672252A (en) | 2019-06-04 | 2019-11-01 | Antifouling type integrated sensing and controller and electronic cigarette product applying same |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910482681.2A Pending CN110108408A (en) | 2019-06-04 | 2019-06-04 | The integrated sensing of anti-fouling type and controller and its applied electronics smoke product |
| CN201921864944.8U Active CN211091902U (en) | 2019-06-04 | 2019-11-01 | Electronic cigarette product applying integrated sensing and controller |
| CN201911060509.4A Pending CN110672250A (en) | 2019-06-04 | 2019-11-01 | Electronic cigarette product applying integrated sensing and controller |
| CN201911060580.2A Pending CN110672251A (en) | 2019-06-04 | 2019-11-01 | Sensing and controller comprising circuit board and electronic cigarette applied to sensing and controller |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921870303.3U Active CN211121738U (en) | 2019-06-04 | 2019-11-01 | Antifouling type integrated sensing and controller and electronic cigarette product applying same |
| CN201911060963.XA Pending CN110672252A (en) | 2019-06-04 | 2019-11-01 | Antifouling type integrated sensing and controller and electronic cigarette product applying same |
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| CN (7) | CN110108408A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112535323B (en) * | 2020-11-02 | 2022-07-22 | 杭州一芯微科技有限公司 | Double-heating-wire electronic cigarette controller and double-heating-wire control method |
| CN112729660B (en) * | 2021-03-30 | 2021-06-18 | 南京特敏传感技术有限公司 | Double-channel pressure sensitive core |
| CN114403511A (en) * | 2021-12-17 | 2022-04-29 | 深圳麦克韦尔科技有限公司 | Child lock control method and device for atomization device, storage medium and product |
| CN114271553A (en) * | 2021-12-28 | 2022-04-05 | 荣成歌尔微电子有限公司 | Electronic smoke gas flow sensor and electronic cigarette |
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2019
- 2019-06-04 CN CN201910482681.2A patent/CN110108408A/en active Pending
- 2019-11-01 CN CN201921864944.8U patent/CN211091902U/en active Active
- 2019-11-01 CN CN201911060509.4A patent/CN110672250A/en active Pending
- 2019-11-01 CN CN201911060580.2A patent/CN110672251A/en active Pending
- 2019-11-01 CN CN201921864941.4U patent/CN211091901U/en active Active
- 2019-11-01 CN CN201921870303.3U patent/CN211121738U/en active Active
- 2019-11-01 CN CN201911060963.XA patent/CN110672252A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN211121738U (en) | 2020-07-28 |
| CN110108408A (en) | 2019-08-09 |
| CN110672251A (en) | 2020-01-10 |
| CN211091902U (en) | 2020-07-28 |
| CN110672250A (en) | 2020-01-10 |
| CN110672252A (en) | 2020-01-10 |
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