Electronic atomization device

Abstract

The utility model discloses an electronic atomization device, and relates to the technical field of electronic atomization devices. The electronic atomization device comprises a detection unit arranged in a first shell of the atomizer and a control unit arranged in a second shell of the power supply assembly, the detection unit is electrically connected with the control unit, and the detection unit is used for detecting air pressure changes in the atomizer. The control unit is used for controlling starting or stopping of the atomizer based on a detection signal of the detection unit. Thus, the detection unit and the control unit in the airflow sensing assembly are arranged in the first shell and the second shell of the electronic atomization device respectively, when any one of the detection unit and the control unit is damaged, only the unit needs to be maintained or replaced, and the other unit can still be used normally; therefore, the maintenance cost of the airflow sensing assembly is reduced, and the use convenience is improved.

Description

Technical Field

[0001] This application belongs to the technical field of atomization devices, and particularly relates to an electronic atomization device. Background Art

[0002] Currently, in order to synchronize the startup and shutdown of the atomization core in the electronic atomization device with the user's use, an airflow sensor is usually provided in the electronic atomization device to detect the change in airflow pressure in the airflow channel of the atomization core.

[0003] In the related art, the refluxed aerosol or condensate is likely to damage the airflow sensor, and thus it needs to be replaced, resulting in a relatively high maintenance cost. Utility Model Content

[0004] This application aims to provide an electronic atomization device, which can solve the problem in the related art that the refluxed aerosol or condensate is likely to damage the airflow sensor, and thus it needs to be replaced, resulting in a relatively high maintenance cost.

[0005] To solve the above technical problems, this application is implemented as follows:

[0006] In one embodiment, this application provides an electronic atomization device, including an atomizer, a power supply component, and an airflow sensing component. The atomizer has a first housing, the power supply component has a second housing, and the first housing is connected to the second housing;

[0007] The airflow sensing component includes: a detection unit and a control unit. The detection unit is electrically connected to the control unit. The detection unit is disposed in the first housing and is used to detect the air pressure change in the atomizer; the control unit is disposed in the second housing and is used to control the startup and shutdown of the atomizer based on the detection signal of the detection unit.

[0008] In one embodiment, the airflow sensing component further includes an electrical connection member. The electrical connection member is installed on the first housing. One end of the electrical connection member is electrically connected to the detection unit, and the other end of the electrical connection member extends at least to the outer end face of the second housing for electrical connection with the control unit.

[0009] In one embodiment, an elastic connection portion is provided on the control unit. One end of the elastic connection portion extends at least to the outer end face of the second housing and is electrically connected to the electrical connection member.

[0010] In one embodiment, a wire is disposed in the first housing, and both ends of the wire are electrically connected to the detection unit and the electrical connection member respectively.

[0011] In one embodiment, the detection unit includes a housing, a plate, a conductive film, and a first circuit board;

[0012] The first shell is provided with a mounting seat, the shell is arranged in the mounting seat, the shell has a receiving cavity, the conductive film is arranged in the receiving cavity, and the receiving cavity is divided into a first air cavity and a second air cavity, the electrode plate is arranged in the first air cavity, and the electrode plate and the conductive film are spaced apart to form a capacitor gap between the conductive film and the electrode plate; the first circuit board is mounted on the shell, and the electrode plate and the conductive film are electrically connected to the first circuit board respectively;

[0013] A first air hole is provided in the shell, the first air hole connects the first air cavity and the air inlet channel in the mounting seat, and the second air cavity is connected to the outside.

[0014] In one embodiment, the detection unit further includes a first insulating member, the housing is a conductive housing, the electrode plate and the housing are integrally formed, and the electrode plate is electrically connected to the first circuit board through the housing;

[0015] The first insulating member surrounds the circumference of the conductive film and is disposed between the housing and the conductive film.

[0016] In one embodiment, the detection unit further includes a second insulating member, which is disposed between the electrode plate and the conductive film and surrounds four edges of the conductive film.

[0017] In one embodiment, the detection unit further includes a separator, which is arranged on the side of the conductive film away from the electrode plate, and the separator and the conductive film are combined to form the second air cavity. A second air hole is provided on the separator, and the second air cavity is connected to the outside through the second air hole.

[0018] In one embodiment, the detection unit further includes a conductive ring, the separator is a conductive member and is electrically connected to the conductive film, the conductive ring is provided on a side of the separator away from the conductive film, one end of the conductive ring is electrically connected to the separator, and the other end is electrically connected to the first circuit board;

[0019] And / or, it further includes an adsorption layer, which is arranged on the outside of the shell and at least partially covers the first pores.

[0020] In one embodiment, the control unit includes a second circuit board and a control chip. The second circuit board is electrically connected to the detection unit and the atomizer, respectively. The control chip is arranged on the second circuit board and electrically connected to the second circuit board, and is used to control the start and stop of the atomizer based on the detection signal of the detection unit.

[0021] In an embodiment of the present application, the airflow sensing component includes a detection unit disposed in the first housing of the atomizer and a control unit disposed in the second housing of the power supply component. The detection unit and the control unit are electrically connected. The detection unit is used to detect the air pressure change in the atomizer, and the control unit is used to control the start or stop of the atomizer based on the detection signal of the detection unit. In this way, the detection unit and the control unit in the airflow sensing component are respectively disposed in the first housing and the second housing of the electronic atomization device. When any one of the detection unit and the control unit is damaged, only this unit needs to be repaired or replaced, and the other unit can still be used normally, thereby reducing the maintenance cost of the airflow sensing component and improving the convenience of use.

[0022] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Brief Description of the Drawings

[0023] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a schematic diagram of an electronic atomization device according to an embodiment of the present application;

[0025] Figure 2 is along the Figure 1 sectional view taken along line B-B in

[0026] Figure 3 is along the Figure 1 sectional view taken along line A-A in

[0027] Figure 4 is a schematic structural diagram of the airflow sensing component according to an embodiment of the present application;

[0028] Figure 5 is along the Figure 4 sectional view taken along line C-C in

[0029] is an installation schematic diagram of the airflow sensing component according to an embodiment of the present application;

[0030] Figure 6 is a schematic structural diagram of the detection unit according to an embodiment of the present application;

[0031] Figure 7 is an exploded view of the detection unit according to an embodiment of the present application;

[0032] Figure 8 is a schematic circuit diagram of the electronic atomization device according to an embodiment of the present application.

[0033] Reference numerals: 1: detection unit; 11: third housing; 111: accommodation cavity; 1111: first air cavity; 1112: second air cavity; 112: first air hole; 12: electrode plate; 121: adsorption layer; 13: conductive film; 14: first circuit board; 141: positive electrode; 142: third air hole; 15: first insulating member; 16: second insulating member; 17: partition member; 171: second air hole; 18: conductive ring;

[0034] 2: control unit; 21: second circuit board; 22: control chip; 211: elastic connection part;

[0035] 3: atomizer; 31: mounting base; 311: air inlet channel; 32: atomization core; 321: atomization air duct; 322: atomization core pin; 33: first housing; 331: first accommodation space; 332: first air inlet; 333: second air inlet; 34: fixing member; 341: through hole; 35: mouthpiece;

[0036] 4: power supply assembly; 41: second housing; 411: second accommodation space; 42: battery; 43: connector;

[0037] 5: electrical connector;

[0038] 6: magnetic member;

[0039] 7: electrode pin. Detailed implementation manners

[0040] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0041] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0042] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0043] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] Before explaining the airflow sensing component and the electronic atomization device provided in the embodiments of the present application, the application scenarios of the airflow sensing component and the electronic atomization device provided in the embodiments of the present application will be specifically described:

[0045] In the related art, the airflow sensing component in an electronic atomization device generally includes a sensor, a circuit board (Printed Circuit Board + Assembly, PCBA) and an IC (integrated circuit), and the whole is encapsulated in a housing. When a user uses the electronic atomization device, the sensor in the airflow sensing component detects a change in air pressure, and then the circuit where the sensor is located converts the physical signal into an electrical signal and sends it to the IC. The IC processes the signal and controls the atomization core in the electronic atomization device to work to provide aerosol for the user to use. However, for such a highly integrated airflow sensing component, due to its high integration and tight encapsulation, when any one of the components is damaged, the entire airflow sensing component cannot be used and needs to be repaired or replaced as a whole, resulting in a high maintenance cost and difficult maintenance.

[0046] To solve this problem, the present application proposes an airflow sensing component and an electronic atomization device. The airflow sensing component and the electronic atomization device provided in the embodiments of the present application will be described in detail below with reference to the drawings through specific embodiments and their application scenarios.

[0047] In one embodiment, please refer to Figure 9 、 Figure 1 andFigure 2 , this application proposes an electronic atomization device, which includes an atomizer 3, a power supply component 4 and an air flow sensing component. The atomizer 3 has a first housing 33, the power supply component 4 has a second housing 41, and the first housing 33 is connected to the second housing 41;

[0048] The air flow sensing component includes a detection unit 1 and a control unit 2. The detection unit 1 is electrically connected to the control unit 2. The detection unit 1 is adapted to be arranged in the atomizer 3 for detecting the air pressure change in the atomizer 3; the control unit 2 is adapted to be arranged in the power supply component 4 for controlling the start and stop of the atomizer 3 based on the detection signal of the detection unit 1. It should be noted that in this application, the power supply component 4 and the atomizer 3 are respectively located in the second housing 41 and the first housing 33. Correspondingly, the control unit 2 and the detection unit 1 are also respectively located in the second housing 41 and the first housing 33. As an implementation manner of this application, the second housing 41 where the control unit 2 is located is detachably connected to the first housing 33 where the detection unit 1 is located. Correspondingly, after the atomization matrix in the first housing 33 where the detection unit 1 is located is consumed, the user can replace the atomizer 3 where the detection unit 1 is located, so as to ensure that the part of the control unit 2 with greater value can continue to work.

[0049] In the embodiment of this application, the air flow sensing component includes a detection unit 1 arranged in the first housing 33 of the atomizer 3 and a control unit 2 arranged in the second housing 41 of the power supply component 4. The detection unit 1 and the control unit 2 are electrically connected. The detection unit 1 is used to detect the air pressure change in the atomizer 3, and the control unit 2 is used to control the start or stop of the atomizer 3 based on the detection signal of the detection unit 1. In this way, the detection unit 1 and the control unit 2 in the air flow sensing component are respectively arranged in the first housing 33 and the second housing 41 of the electronic atomization device. When any one of the detection unit 1 and the control unit 2 is damaged, only this unit needs to be repaired or replaced, and the other unit can still be used normally, thereby reducing the maintenance cost of the air flow sensing component and improving the convenience of use.

[0050] Please refer to Figure 3, in some embodiments of the present application, the electronic atomization device includes an atomizer 3 and a power supply component 4, and the power supply component supplies electrical energy to the atomizer 3. The atomizer 3 includes a first housing 33 which has a first accommodation space 331. The atomization core 32 and the airflow sensing component are both arranged in the first accommodation space 331. The housing 33 is provided with a second air inlet 333 communicating with the outside, and the second air inlet 333 communicates with the main airway (not shown in the figure) in the atomizer 3. The atomization core 32 is provided with an atomization airway 321 communicating with the main airway, and the atomization airway 321 also communicates with the mouthpiece 35. The airflow sensing component communicates with the main airway through the air inlet passage 311. The power supply component 4 has a second housing 41, and the first housing 33 is connected to the second housing 41. When the user uses it, when the airflow sensing component detects a change in air pressure, the power supply component 4 supplies power to the atomization core 32, and the atomization core 32 converts the atomization matrix into aerosol and supplies it to the user through the atomization airway 321 and the mouthpiece 35. For example, typically, in one implementation, the airflow sensing component detects the negative pressure in the air inlet passage 311 and generates an induction signal.

[0051] In a specific application, when the user uses the electronic atomization device, the airflow in the atomizer 3 will flow to generate a change in air pressure. After the detection unit 1 detects this change in air pressure, the circuit formed by the detection unit 1 and the control unit 2 converts this change in air pressure into an electrical signal, and the control unit 2 controls the start or stop of the atomizer 3 based on this electrical signal.

[0052] It should be explained that, please refer to Figure 3 , the atomizer 3 includes an atomization core 32 which heats and atomizes the atomization matrix into aerosol. The control unit 2 is electrically connected to the atomization core 32, so as to control the start and stop of the atomization core 32 according to the detection signal of the detection unit 1.

[0053] It can be understood that when the user uses the electronic atomization device, the gas in the atomizer 3 is extracted, causing the pressure to drop. At this time, the detection unit 1 detects that the air pressure value in the atomizer 3 drops, and then sends this detection result to the control unit 2, and the control unit 2 controls the atomization core 32 to start.

[0054] Of course, in some other embodiments, the detection unit 1 can also be used to detect whether the local air pressure in the atomizer 3 increases to determine whether to control the start of the atomization core 32.

[0055] Or, in one embodiment, the detection unit 1 is not communicated with the atomization airway of the atomizer 3. For example, an independent detection airway is constructed in the atomizer 3. One end of this detection airway is at least terminated at the mouthpiece, and one end is at least terminated at the detection unit 1. Thus, when the user sucks at the mouthpiece, a negative pressure is generated in the independent detection airway.

[0056] In one embodiment, please refer toFigure 3 , the power supply assembly 4 includes a second housing 41 and a battery 42. The second housing 41 has a second accommodation space 411, and the battery 42 is disposed in the second accommodation space 411. The battery 42 is electrically connected to the second circuit board 21 of the control unit 2 to supply power to the second circuit board 21.

[0057] Wherein, the power supply assembly 4 further includes a connector 43. The connector 43 penetrates through the second housing 41 and is electrically connected to the second circuit board 21.

[0058] In the embodiment of the present application, the power supply assembly 4 is provided with a battery 42, that is, relative to the atomizer, the battery 42 is located in another separate housing, so as to facilitate power supply to the second circuit board 21 and the atomization core 32. On the one hand, the connector 43 realizes charging the battery 42, and on the other hand, it realizes interaction with the outside world.

[0059] In one embodiment, please refer to Figure 3 , magnetic members 6 are embedded at corresponding positions of the first housing 33 and the second housing 41. The atomizer 3 and the power supply assembly 4 are detachably connected through the magnetic members 6. Thereby improving the convenience of disassembling the electronic atomization device.

[0060] In one embodiment, please refer to Figure 3 , Figure 2 , Figure 4 or Figure 5 , the airflow sensing assembly further includes an electrical connector 5. The electrical connector 5 is installed on the first housing 33. One end of the electrical connector 5 is electrically connected to the detection unit 1, and the other end of the electrical connector at least terminates at the outer end face of the second housing 41. For example, the electrical connector may slightly protrude from the outer end face of the second housing 41, and the middle of the protruding part is recessed, which is used for positioning and preliminary fixing when electrically connecting to the control unit 2.

[0061] In the embodiment of the present application, by providing the electrical connector 5 between the first housing 33 of the atomizer 3 and the second housing 41 of the power supply assembly 4, the detection unit 1 provided in the atomizer 3 and the control unit 2 provided in the power supply assembly 4 are electrically connected, thereby realizing signal transmission and power supply between the detection unit 1 and the control unit 2.

[0062] In a specific application, a plurality of electrical connectors 5 are provided, so as to realize electrical connection between the detection unit 1 and the control unit 2, between the positive poles and between the negative poles, as well as signal transmission, etc. Those skilled in the art can set according to actual needs, and the present application does not limit this.

[0063] In one embodiment, please refer to Figure 6 , Figure 2 and Figure 4, an elastic connection part 211 is provided on the control unit 2. One end of the elastic connection part 211 at least terminates at the outer end face of the second housing 41 and is electrically connected to the electrical connector 5.

[0064] In the embodiment of the present application, by providing the elastic connection part 211 on the control unit 2, the elastic connection part 211 penetrates through the second housing 41 and is electrically connected to the electrical connector 5, so that while realizing the detection unit 1 and the control unit 2, it is also convenient to disassemble the atomizer 3 and the power supply assembly 4.

[0065] Or, in an implementation manner, one end of the elastic connection part 211 at least terminates at the outside of the second housing 41 where the control unit 2 is located, and one end extends into the inside of the second housing 41 where the control unit 2 is located. The elastic connection part 211 is not directly arranged on the second circuit board 21 of the control unit 2, but is connected by means of a wire. For example, one end of the wire is welded to the part of the elastic connection part 21 that extends into the second housing 41, and the other end can be welded to the second circuit board 21. In this implementation manner, the setting manner and position of the second circuit board 21 can be more flexible.

[0066] In a specific application, a plurality of elastic connection parts 211 are provided to realize the electrical connection between the first circuit board 14 and the second circuit board 21, the electrical connection between the positive poles and the electrical connection between the negative poles, as well as signal transmission, etc. Those skilled in the art can set according to actual needs, and the present application does not limit this.

[0067] Specifically, the elastic connection part 211 includes a support part, a plug-in part and an elastic part. The support part is fixedly connected to the control unit 2. An installation cavity with an opening is provided in the support part. The plug-in part is movably connected to the installation cavity. At least part of the plug-in part can extend out of the opening to abut against the electrical connector. The elastic part is arranged in the installation cavity, one end is connected to the inner wall of the installation cavity, and one end is connected to the plug-in part. In this way, when the atomizer 3 and the power supply assembly 4 are assembled together, under the elastic force of the elastic part, the plug-in part can stably abut against the electrical connector, thereby improving the connection reliability.

[0068] In one embodiment, please refer to Figure 5 , a wire (not shown in the figure) is provided between the first housing 33 and the second housing 41. One end of the wire is electrically connected to the detection unit 1, and the other end is electrically connected to the control unit 2.

[0069] In one embodiment, a wire is provided in the first housing 33, and the two ends of the wire are respectively electrically connected to the detection unit 1 and the electrical connector 5.

[0070] In the embodiment of the present application, a wire is provided between the first housing 33 and the second housing 41. One end of the wire passes through the first housing 33 and is electrically connected to the detection unit 1, and the other end passes through the second housing 41 and is electrically connected to the control unit 2. Thus, the electrical connection between the detection unit 1 and the control unit 2 is realized through a simple structure, with lower cost and more convenient maintenance.

[0071] In one embodiment, please refer to Figure 2 , Figure 3 and Figure 5 , the detection unit 1 includes a third housing 11, a plate 12, a conductive film 13 and a first circuit board 14; an installation seat 31 is provided in the first housing 33, the third housing 11 is arranged in the installation seat 31, the third housing 11 has a receiving cavity 111, the conductive film 13 is arranged in the receiving cavity 111 and divides the receiving cavity 111 into a first air cavity 1111 and a second air cavity 1112, the plate 12 is arranged in the first air cavity 1111, and the plate 12 and the conductive film 13 are arranged at intervals to form a capacitive interval between the conductive film 13 and the plate 12; the first circuit board 14 is installed on the third housing 11, and the plate 12 and the conductive film 13 are respectively electrically connected to the first circuit board 14; a first air hole 112 is provided in the third housing 11, and the first air hole 112 communicates the first air cavity 1111 with the intake passage 311 in the installation seat 31, and the second air cavity 1112 communicates with the outside.

[0072] In the embodiment of the present application, please refer to Figure 8 , an installation seat 31 is provided in the first housing 33, and the third housing 11 is arranged in the installation seat 31, so that the detection unit 1 is stably installed in the atomizer 3. The conductive film 13 is arranged in the receiving cavity 111 of the third housing 11 and divides the receiving cavity 111 into a first air cavity 1111 and a second air cavity 1112. The first air hole 112 communicates the first air cavity 1111 with the intake passage 311 in the installation seat 31, and the second air cavity 1112 communicates with the outside. Thus, the first air cavity 1111 on one side of the conductive film 13 communicates with the intake passage 311 of the atomizer 3 through the first air hole 112, so that the detection unit 1 can detect whether the air pressure in the atomizer 3 changes; in this way, the detection of the air pressure change in the atomizer 3 is realized through a simple and reliable structure.

[0073] In a specific application, please refer to Figure 3 , the second air cavity 1112 on the other side of the conductive film 13 is the same as the outside atmosphere. In this way, when the air pressure in the atomizer 3 drops, the pressure in the first air cavity 1111 drops, and under the action of the air pressure in the second air cavity 1112, the conductive film 13 can deform towards the plate 12, changing the size of the capacitive interval (i.e., the first air cavity 1111), and further generating a changing capacitance. The control unit 2 controls the start of the atomizer 3 based on the changing capacitance.

[0074] The electrode plate 12 is disposed in the first air chamber 1111, and the electrode plate 12 is spaced apart from the conductive film to form a capacitive interval between the conductive film 13 and the electrode plate 12. The first circuit board 14 is mounted on the third housing 11, and the electrode plate 12 and the conductive film 13 are respectively electrically connected to the first circuit board 14; that is, the electrode plate 12 and the conductive film 13 form a parallel plate capacitor. When the pressure in the first air chamber 1111 changes, since the second air chamber 1112 is connected to the outside atmosphere, the air pressure values on both sides of the conductive film 13 are different, so that the conductive film 13 deforms.

[0075] Specifically, the capacitance of the conductive film 13 changes due to the change in air pressure. That is to say, the conductive film 13, the electrode plate 12, the third housing 11, and the first circuit board 14 in the detection unit 1 form a capacitive pressure sensor. In practical applications, it can be specifically a single capacitive pressure sensor or a differential capacitive pressure sensor. Those skilled in the art can set it according to requirements, and the present application does not limit this.

[0076] It can be understood that taking the decrease in the pressure of the first air chamber 1111 as an example, the conductive film 13 deforms towards the electrode plate 12, so that the distance between the conductive film 13 and the electrode plate 12 becomes smaller. According to the capacitance calculation formula: C = ξS / d, where ξ is the dielectric constant of the medium between the conductive film 13 and the electrode plate 12, S is the area of the conductive film 13 or the electrode plate 12, and d is the distance between the conductive film 13 and the electrode plate 12. When the distance between the conductive film 13 and the electrode plate 12 decreases, the capacitance C increases. In this way, an electrical signal with a capacitance change is generated.

[0077] Specifically, the electrode plate 12 is spaced apart from the conductive film 13 and is arranged in parallel to form a plate capacitor. In practical applications, the electrode plate 12 and the conductive film 13 are arranged along the circumferential direction perpendicular to the third housing 11, so as to form the first air chamber 1111.

[0078] It should be explained that in some embodiments, the accommodation chamber 111 of the third housing 11 is semi-closed, so as to be connected to the outside atmosphere. The first circuit board 14 is mounted on the third housing 11, and it can be mounted on the outside of the third housing 11 or in the accommodation chamber 111 of the third housing 11.

[0079] In some embodiments, please refer to Figure 3 and Figure 5, the first circuit board 14 is installed in the accommodation cavity 111 of the third housing 11, which is more convenient for encapsulation and has better sealing performance. The first circuit board 14 is also provided with a positive electrode 141 and a third air hole 143. The conductive film 13 and the electrode plate 12 are respectively electrically connected to the first circuit board 14. It can be that the conductive film 13 is electrically connected to the positive electrode 141 of the first circuit board 14, and the electrode plate 12 is electrically connected to the negative electrode (not shown in the figure) of the first circuit board 14; it can also be that the electrode plate 12 is electrically connected to the positive electrode 141 of the first circuit board 14, and the conductive film 13 is electrically connected to the negative electrode of the first circuit board 14. Those skilled in the art can set according to requirements, and this application does not limit this.

[0080] It can be understood that the third air hole 143 on the first circuit board 14 can communicate the second air cavity 1112 with the outside atmosphere.

[0081] In specific applications, the electrode plate 12 can be separately processed and then arranged in the first air cavity 1111, or can be integrally formed with the third housing 11, which makes the processing more convenient and the structure simpler.

[0082] In one embodiment, please refer to Figure 7 and Figure 5 , the detection unit further includes a first insulating member 15. The third housing 11 is a conductive housing. The electrode plate 12 is integrally formed with the third housing 11, and the electrode plate 12 is electrically connected to the first circuit board 14 through the third housing 11; the first insulating member 15 is disposed between the third housing 11 and the conductive film 13 around the circumference of the conductive film 13.

[0083] In the embodiment of the present application, the third housing 11 is a conductive housing. The electrode plate 12 is integrally formed with the third housing 11, and the electrode plate 12 is electrically connected to the first circuit board 14 through the third housing 11. The first insulating member 15 is disposed between the third housing 11 and the conductive film 13 around the circumference of the conductive film 13, so as to form an insulating isolation between the conductive film 13 and the third housing 11. The integrally formed electrode plate 12 and the third housing 11 have a simpler structure and more convenient processing.

[0084] In specific applications, the electrode plate 12 is integrally formed with the third housing 11. The electrode plate 12 serves as the bottom wall of the third housing 11, and the conductive film 13 is disposed parallel to and spaced from the electrode plate 12, so that a capacitance gap is formed between the conductive film 13 and the substrate 12, and the two form a plate capacitor.

[0085] It should be explained that the third housing 11 is provided with a first air hole 112. When the electrode plate 12 is integrally formed with the third housing 11, the first air hole 112 is provided on the electrode plate 12, so that the first air cavity 1111 is communicated with the atomizer 3 through the first air hole 112.

[0086] Understandably, the conductive film 13 and the electrode plate 12 are electrically connected to the positive or negative electrode of the first circuit board 14 respectively. When the electrode plate 12 is integrally formed with the third housing 11 and the third housing 11 is a conductive housing, the first insulating member 15 is disposed circumferentially around the conductive film 13 between the third housing 11 and the conductive film 13, thereby forming an insulating isolation between the conductive film 13 and the third housing 11.

[0087] In one embodiment, please refer to Figure 8 and Figure 5 , the detection unit 1 further includes a second insulating member 16. The second insulating member 16 is disposed between the electrode plate 12 and the conductive film 13 and is disposed around the four peripheral edges of the conductive film 13.

[0088] In the embodiment of the present application, by disposing the second insulating member 16 between the electrode plate 12 and the conductive film 13, an insulating isolation is formed between the electrode plate 12 and the conductive film 13, and the conductive film 13 can also be supported; and the second insulating member 16 is disposed around the four peripheral edges of the conductive film 13, avoiding blocking the first air hole 112 and affecting the communication between the first air cavity 1111 and the atomizer 3.

[0089] In one embodiment, please refer to Figure 8 and Figure 5 , the detection unit 1 further includes a partition member 17. The partition member 17 is disposed on the side of the conductive film 13 facing away from the electrode plate 12. The partition member 17 and the conductive film 13 enclose a second air cavity 1112. The partition member 17 is provided with a second air hole 171, and the second air cavity 1112 communicates with the outside through the second air hole 🏿1.

[0090] In the embodiment of the present application, the partition member 17 is disposed on the side of the conductive film 13 facing away from the electrode plate 12. The partition member 17 and the conductive film 13 enclose a second air cavity 1112. The partition member 17 is provided with a second air hole 171, and the second air cavity 1112 communicates with the outside through the second air hole 171. In this way, the air pressure in the second air cavity 1112 communicating with the outside atmosphere is relatively stable, and it will not cause a drastic change in the air pressure in the second air cavity 1112 due to actions such as shaking the electronic atomization device by the user during use, and further cause the conductive film 13 to deform and cause misactivation of the atomizer 3.

[0091] It should be explained that the partition member 17 and the conductive film 13 enclose a second air cavity 1112, which actually means that the partition member 17, the conductive film 13 and the side wall of the third housing 11 enclose a second air cavity 1112. The partition member 17 and the conductive film 13 are spaced and parallelly disposed along the axis direction of the accommodation cavity 111, and then enclose a second air cavity 1112 with the outer wall of the accommodation cavity 111 (i.e., the side wall of the third housing 11).

[0092] In a specific application, the separator 17 can be made of a conductive material or an insulating material. Those skilled in the art can choose according to their needs, and this application does not impose any restrictions on this.

[0093] It can be understood that the partition 17 and the conductive film 13 are enclosed to form a second air cavity 1112, and the second air cavity 1112 is connected to the outside world through the second air hole 171, that is, it is connected to the side away from the first air cavity 1111. In this way, the second air cavity 1112 has a relatively stable air pressure, and the second air hole 171 can be set to multiple, so that the second air cavity 1112 can be stably connected to the outside atmosphere while avoiding excessive influence from the outside world.

[0094] In one embodiment, please refer to Figure 8 and Figure 5 The detection unit 1 also includes a conductive ring 18. The separator 17 is a conductive member and is electrically connected to the conductive film 13. The conductive ring 18 is arranged on the side of the separator 17 away from the conductive film 13. One end of the conductive ring 18 is electrically connected to the separator 17, and the other end is electrically connected to the first circuit board 14.

[0095] In the embodiment of the present application, the separator 17 is a conductive member and is electrically connected to the conductive film 13. The conductive ring 18 is arranged on the side of the separator 17 away from the conductive film 13. One end of the conductive ring 18 is electrically connected to the separator 17, and the other end is electrically connected to the first circuit board 14. Therefore, in the compact space of the third shell 11, the conductive film 13 is electrically connected to the first circuit board 14 through the separator 17 and the conductive ring 18, and the connection is more stable and reliable.

[0096] In one embodiment, the separator 17 is a stainless steel plate, which can achieve electrical connection on the one hand and prevent rust on the other hand.

[0097] In one embodiment, please refer to Figure 8 and Figure 5 The detection unit 1 further includes an adsorption layer 121 . The adsorption layer 121 is disposed on the outer side of the third shell 11 and at least partially covers the first air hole 112 .

[0098] In the embodiment of the present application, an adsorption layer 121 is provided on the outer side of the third shell 11 and at least partially covers the first air hole 112 , thereby adsorbing the condensate and the like in the atomizer 3 to prevent the condensate and the like from entering the third shell 11 and affecting the normal use of the detection unit 1 .

[0099] Specifically, since the aerosol generated by the atomization matrix will diffuse, when used for a long time or in areas with relatively low temperatures, the aerosol condenses into condensate. Due to the capillary action of the condensate, it is difficult for a conventional sealing structure to absolutely prevent the condensate from passing through. After long-term use, the condensate easily enters the first air chamber 1111 through the sealing structure and reaches the conductive film 13, which is likely to affect the detection result of the detection unit 1 and make the detection unit 1 prone to failure. For example, in a traditional airflow sensing component, the condensate will enter between the electrode plate 12 and the conductive film 13, changing the medium between the electrode plate 12 and the conductive film 13, causing the dielectric constant ξ to increase and the capacitance C to increase, thereby generating an electrical signal with a corresponding capacitance change and further resulting in a false trigger situation. Another example is that after the condensate enters the first air chamber 1111 and adheres to the conductive film 13, the conductive film 13 deforms downward under the action of gravity, which will also generate a changing capacitance and further result in a false trigger situation.

[0100] Therefore, the adsorption layer 121 is provided on the outer side of the third housing 11 and at least partially covers the first air hole 112, thereby filtering the airflow passing through the first air hole 112, prolonging the service life of the detection unit 1, and improving the accuracy of the detection effect.

[0101] It can be understood that the adsorption layer 121 can be made of any feasible material, such as polytetrafluoroethylene, non-woven fabric or cotton, etc. Of course, other materials with adsorption and air permeability functions can also be used, and specific selection can be made according to actual needs.

[0102] In one embodiment, please refer to Figure 8 、 Figure 4 or Figure 5 , the control unit 2 includes a second circuit board 21 and a control chip 22. The second circuit board 21 is electrically connected to the detection unit 1 and the atomizer 3 respectively. The control chip 22 is provided on the second circuit board 21 and is electrically connected to the second circuit board 21, and is used to control the start and stop of the atomizer 3 based on the detection signal of the detection unit 1.

[0103] In the embodiment of the present application, the control unit 2 includes a second circuit board 21 and a control chip 22. The second circuit board 21 is electrically connected to the detection unit 1 and the atomizer 3 respectively. The control chip 22 is provided on the second circuit board 21 and is electrically connected to the second circuit board 21, and is used to control the start and stop of the atomizer 3 based on the detection signal of the detection unit 1, so that the control unit 2 provided in the power supply component 4 can control the atomizer 3 according to the detection signal of the detection unit 1.

[0104] In a specific application, the control chip 22 is a microcontroller unit (MCU). Compared with traditional control chips, the MCU pays more attention to optimization in terms of power consumption, cost, and size, and is suitable for application scenarios with lower resource requirements. The MCU can perform different tasks according to needs, such as collecting data, processing input signals, controlling outputs, etc. Its highly integrated design enables the MCU to achieve complex functions on small devices.

[0105] In one embodiment, the elastic connection part 211 is integrally formed with the second circuit board 21, which is convenient for processing. It can be understood that the elastic connection part 211 is welded to the second circuit board 21, providing electrical connection while being more stable and reliable.

[0106] In one embodiment, please refer to Figure 6 , the detection unit 1 and the control unit 2 are respectively provided with electrode pins 7, so as to realize the power supply and signal transmission between the detection unit 1 and the control unit 2 through the electrical connector 5 and the elastic connection part 211. In a specific application, please refer to Figure 9 , the first circuit board 14 on the detection unit 1 is electrically connected to the atomizer core pin 322, so as to realize the power supply from the power supply component 4 to the atomizer 3 through the existing structure, that is, the power supply component 4 supplies power to the atomizer core 32. In this embodiment, a third circuit board is provided. The contact of the atomizer core pin 322 and the detection unit 1 are both located on the third circuit board, or the detection unit 1 is electrically connected to the third circuit board through a wire. An electrical contact is provided on one side of the third circuit board close to the housing, and the electrical contact can be assembled into the third housing 11. Specifically, there are at least three electrical contacts. Taking three as an example, the atomizer core pin 322 and the detection unit 1 share one of the electrical contacts as the negative electrode, and each uses one electrical contact as the positive electrode. For example, the middle electrical contact is shared as the negative electrode. When the atomizer 3 is connected to the power supply component 4, the detection unit 1 accesses the power supply component 4 through the upper and middle two electrical contacts, and the atomizer core pin 322 accesses the power supply component 4 through the middle and lower two electrical contacts. When the detection unit 1 outputs a detection signal, the power supply component 4 raises the voltage of the lower electrical contact, so as to realize the operation of the atomizer core 32.

[0107] In one embodiment, please refer to Figure 9 Figure 6 , a fixing member 34 is further provided in the first housing 33. The mounting base 31 is connected to the fixing member 34. The fixing member 34 is provided with a through hole 341, and the first housing 33 is provided with a second air inlet 333. The second air cavity 1112 is communicated with the outside atmosphere through the through hole 341 and the second air inlet 333.

[0108] Among them, the electrical connector 5 passes through the fixing member 34 to realize the electrical connection between the first circuit board 14 of the detection unit 1 and the second circuit board 21 of the control unit 2.

[0109] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0110] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic atomization device, characterized in that, It includes an atomizer (3), a power supply component (4) and an air flow sensing component. The atomizer (3) has a first housing (33), the power supply component (4) has a second housing (41), and the first housing (33) is connected to the second housing (41); The air flow sensing component includes a detection unit (1) and a control unit (2). The detection unit (1) is electrically connected to the control unit (2). The detection unit (1) is arranged in the first housing (33) and is used to detect the air pressure change in the atomizer (3); the control unit (2) is arranged in the second housing (41) and is used to control the start and stop of the atomizer (3) based on the detection signal of the detection unit (1).

2. The electronic atomization device according to claim 1, characterized in that, The air flow sensing component further includes an electrical connector (5). The electrical connector (5) is installed on the first housing (33). One end of the electrical connector (5) is electrically connected to the detection unit (1), and the other end of the electrical connector (5) at least extends to the outer end face of the second housing (41) for electrically connecting to the control unit (2).

3. The electronic atomization device according to claim 2, wherein, An elastic connection part (211) is provided on the control unit (2). One end of the elastic connection part (211) at least extends to the outer end face of the second housing (41) and is electrically connected to the electrical connector (5).

4. The electronic atomization device according to claim 2, wherein, A wire is arranged in the first housing (33), and the two ends of the wire are electrically connected to the detection unit (1) and the electrical connector (5) respectively.

5. The electronic atomization device according to any one of claims 1-4, characterized in that, The detection unit (1) includes a third housing (11), a pole plate (12), a conductive film (13) and a first circuit board (14); An installation seat (31) is provided in the first housing (33). The third housing (11) is arranged in the installation seat (31). The third housing (11) has a receiving cavity (111). The conductive film (13) is arranged in the receiving cavity (111) and divides the receiving cavity (111) into a first air cavity (1111) and a second air cavity (1112). The pole plate (12) is arranged in the first air cavity (1111). The pole plate (12) and the conductive film (13) are arranged at intervals to form a capacitive interval between the conductive film (13) and the pole plate (12); the first circuit board (14) is installed on the housing (11), and the pole plate (12) and the conductive film (13) are respectively electrically connected to the first circuit board (14); A first air hole (112) is provided in the housing (11). The first air hole (112) communicates the first air cavity (1111) with the air inlet channel (311) in the installation seat (31), and the second air cavity (1112) communicates with the outside.

6. The electronic atomization device according to claim 5, wherein The detection unit (1) further includes a first insulating part (15). The third housing (11) is a conductive housing. The pole plate (12) and the third housing (11) are integrally formed. The pole plate (12) is electrically connected to the first circuit board (14) through the third housing (11); The first insulating member (15) is disposed circumferentially around the conductive thin film (13) between the third housing (11) and the conductive thin film (13).

7. The electronic atomization device according to claim 5, characterized in that, The detection unit (1) further includes a second insulating member (16). The second insulating member (16) is disposed between the electrode plate (12) and the conductive thin film (13) and is disposed around the four peripheral edges of the conductive thin film (13).

8. The electronic atomization device according to claim 6, characterized in that, The detection unit (1) further includes a partition member (17). The partition member (17) is disposed on a side of the conductive thin film (13) facing away from the electrode plate (12). The partition member (17) and the conductive thin film (13) enclose to form the second air cavity (1112). A second air hole (171) is provided on the partition member (17). The second air cavity (1112) communicates with the outside through the second air hole (171).

9. The electronic atomization device according to claim 8, characterized in that, The detection unit (1) further includes a conductive ring (18). The partition member (17) is a conductive member and is electrically connected to the conductive thin film (13). The conductive ring (18) is disposed on a side of the partition member (17) facing away from the conductive thin film (13). One end of the conductive ring (18) is electrically connected to the partition member (17), and the other end is electrically connected to the first circuit board (14). And / or, further includes: an adsorption layer (121). The adsorption layer (121) is disposed on the outer side of the third housing (11) and at least partially covers the first air hole (112).

10. The electronic atomization device according to claim 1, characterized in that, The control unit (2) includes a second circuit board (21) and a control chip (22). The second circuit board (21) is electrically connected to the detection unit (1) and the atomizer (3) respectively. The control chip (22) is disposed on the second circuit board (21) and is electrically connected to the second circuit board (21), and is used to control the start and stop of the atomizer (3) based on the detection signal of the detection unit (1).

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