Electronic atomization device

Abstract

Disclosed in the present application is an electronic atomization device, comprising a housing assembly (3000), a micropore atomization plate (3) and a vaping starting assembly (2001). An aerosol outlet channel (4) extending in a first direction X is formed in the housing assembly (3000). The microporous atomization plate (3) is arranged in the housing assembly (3000), at least the central part of the microporous atomization plate (3) being exposed to the aerosol outlet channel (4). The microporous atomization plate (3) is used for atomizing an aerosol generation substrate to generate an aerosol, and allowing the aerosol to be sprayed into the aerosol outlet channel (4) in the first direction X. The particle size range of more than 98% of the aerosol generated by the microporous atomization plate (3) is 1-4 um. A mouthpiece part (103) communicated with the aerosol outlet channel (4) is formed at the end of the housing assembly (3000) away from the microporous atomization plate (3) in the first direction X. The vaping starting assembly (2001) is used for sensing the change of an airflow in the housing assembly (3000) so as to start the microporous atomization plate (3). Users can conveniently and directly implement vaping by means of the mouthpiece part without the need to provide a vaping accessory such as a mask. Generated aerosol particles are fine, and are easy to absorb.

Description

Electronic atomization device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 20, 2024, with application number 202410191095.3 and invention name “Electronic Atomization Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of atomization technology, and in particular to an electronic atomization device. Background Art

[0003] A mesh nebulizer is a new type of nebulizer that combines the features of both compression and ultrasonic nebulizers. Its atomization principle utilizes tiny ultrasonic waves to generate high-frequency vibrations in a microporous atomizer disc, thereby crushing the atomized medium into aerosol particles. Existing mesh medical nebulizers are primarily used as home medical nebulizers for treating respiratory diseases such as pediatric asthma, chronic bronchitis, and emphysema. The nebulizer atomizes liquid medication into tiny aerosol particles, which are then inhaled to treat the disease.

[0004] However, traditional mesh medical nebulizers have the following disadvantages:

[0005] 1. The liquid is supplied above the microporous atomizer, which generates aerosol particles from top to bottom. The liquid will be affected by gravity, resulting in unstable liquid supply, especially when the amount of liquid is small, the impact will be aggravated; since the aerosol is generated from top to bottom, it will cause uneven distribution of aerosol in space, especially in large spaces where there may be concentration differences; the downward atomization design will limit the operating direction of the mesh medical nebulizer, and special consideration needs to be given to the placement and use environment of the mesh medical nebulizer; after the liquid supply is completed, a certain amount of liquid will remain on the microporous atomizer, making cleaning difficult or affecting the next use.

[0006] 2. The mesh medical nebulizer is activated by pressing a button. Atomization and aerosol particles are generated only after the button is activated. After the button is activated, aerosol particles are continuously generated. The generation of aerosol particles will not stop until the button is pressed again. The user's breathing is alternating between inhalation and exhalation. When the user is exhaling, the aerosol particles are not inhaled by the user, which will result in aerosol waste.

[0007] 3. The mesh medical nebulizer requires a mask to be placed over the mouth and nose to inhale aerosol particles into the body through breathing. There are usually two ways to put the mask over the mouth and nose. One is to always fix the mask on the mouth and nose by holding it in hand during the atomization process. The other way is to design the mask as a head-mounted type and wear it on the head during the atomization process. No matter which method is used, the use of the mask will make the user feel uncomfortable.

[0008] 4. The current mesh-type medical nebulizer does not have high requirements for the particle size of the generated aerosol, which makes the particle size of the generated aerosol not fine enough, causing the aerosol to settle in the upper airway. It cannot play a good role in drug delivery for diseases that require drug delivery to the lower lungs or bronchi, such as asthma and chronic obstructive pulmonary disease, affecting the treatment effect.

[0009] In summary, the current mesh atomizer has many problems, and a new atomizer is urgently needed to solve the above problems. Technical issues

[0010] One of the purposes of the embodiments of the present application is to provide an electronic atomization device, aiming to solve the problems of the current mesh atomizer with unstable liquid supply structure, poor user experience and poor treatment effect. Technical Solutions

[0011] To solve the above technical problems, the technical solutions adopted in the embodiments of the present application are:

[0012] In the first aspect, an embodiment of the present application provides an electronic atomization device for atomizing an aerosol-generating matrix to generate an aerosol, comprising a shell assembly, a microporous atomization sheet and a suction-start assembly, wherein the shell assembly is formed with an air outlet channel extending along a first direction; the microporous atomization sheet is arranged in the shell assembly; at least the center portion of the microporous atomization sheet is exposed in the air outlet channel, the microporous atomization sheet is used to atomize the aerosol-generating matrix to generate an aerosol, and spray the aerosol into the air outlet channel along the first direction; and in the aerosol generated by the microporous atomization sheet, more than 98% of the aerosol particles have a particle size range of 1-4um; a suction nozzle portion that is connected to the air outlet channel is formed at one end of the shell assembly away from the microporous atomization sheet along the first direction; the suction-start assembly is used to sense changes in the airflow in the shell assembly to start the microporous atomization sheet.

[0013] The beneficial effect of the electronic atomization device provided by the present application is that the shell assembly of the electronic atomization device is formed with a suction nozzle for the user to directly inhale, which is convenient for the user to inhale directly through the suction nozzle. There is no need to equip a mask or other inhalation accessories when using it. The structure is simple and easy to use. The microporous atomization sheet sprays the aerosol into the air outlet channel along the first direction, that is, it adopts an upward atomization method to make the aerosol evenly distributed, which can effectively reduce the loss, increase the atomization amount, and achieve a better suction effect. The suction start component is used to detect and sense the change of the suction airflow in the shell assembly to start the microporous atomization sheet, that is, when the user inhales and uses the atomizer, the microporous atomization sheet can be started to atomize the aerosol generating matrix to generate an aerosol for the user to inhale, thereby realizing self-starting of suction; and when the user does not inhale, the microporous atomization sheet stops working, avoiding aerosol waste, and having a good user experience. Among the aerosols generated by the microporous atomizer sheet, more than 98% of the aerosols have a particle size of 1-4um; the aerosol particles are fine, easy to absorb, and do not choke the throat; the aerosol particles within this range can better pass through the respiratory tract and more effectively reach the human trachea, bronchi, alveoli and lower lungs, with better therapeutic effects; the particle size level of the aerosol generated by the electronic atomizer device of this application reaches and exceeds the particle size standard of the medical nebulizer level.

[0014] In one possible design, the microporous atomizer includes a stacked substrate and a piezoelectric ceramic ring; a microporous area is provided at the center of the substrate, and the microporous area is provided with more than one micropore; and the central axis of the air outlet channel passes through the microporous area.

[0015] In one possible design, the cross-section of the micropore in the first direction is conical, the end of the micropore close to the suction nozzle along the first direction is the liquid outlet end, the end of the micropore away from the suction nozzle along the first direction is the liquid inlet end, and the pore diameter of the micropore at the liquid inlet end is larger than the pore diameter of the micropore at the liquid outlet end; wherein,

[0016] The pore size of the micropore at the liquid outlet end ranges from 1 μm to 4 μm.

[0017] In a possible design, the pore size of the micropore at the liquid inlet end ranges from 20 μm to 100 μm.

[0018] In the second aspect, another embodiment of the present application provides an electronic atomization device, comprising: an atomizer housing, a base and a microporous atomization sheet, the atomizer housing being formed with a mouthpiece and an air outlet channel extending along a first direction; the atomizer housing also having a liquid storage chamber for storing an aerosol-generating matrix, and the liquid storage chamber and the air outlet channel being spaced apart along a second direction, and the second direction being perpendicular to the first direction; the base being arranged in the atomizer housing and being used to isolate the air outlet channel from the liquid storage chamber; an atomization bin and a liquid inlet channel connected between the atomization bin and the liquid storage chamber being formed in the base; the microporous atomization sheet being installed in the base, and at least the center portion of the end face of the microporous atomization sheet facing away from the mouthpiece is exposed in the atomization bin.

[0019] In one possible design, the atomizer housing includes an atomizing shell and a liquid storage shell arranged side by side along the second direction, the atomizing shell is formed with the air outlet channel and the suction nozzle, and the liquid storage cavity is formed in the liquid storage shell; the base is connected between the atomizing shell and the liquid storage shell.

[0020] In one possible design, the liquid storage shell includes a main shell having the liquid storage chamber and a mounting seat provided at the bottom end of the main shell and extending outward, the base is provided on the mounting seat and connected to the main shell so that the liquid inlet channel is connected to the liquid storage chamber; the bottom end of the atomizing shell is installed on the mounting seat, and the atomizing shell further has a receiving groove for accommodating the base, and the receiving groove is connected to the air outlet channel.

[0021] In one possible design, the base includes a base and a top seat, and the microporous atomization sheet is clamped between the base and the top seat; the atomization bin and the liquid inlet channel are opened in the base, and the base is arranged on the mounting seat and connected to the main shell so that the liquid inlet channel is connected to the liquid storage chamber; the atomization shell and the top seat are limited to cooperate to limit the top seat from separating from the base along the first direction.

[0022] In one possible design, the top seat includes a top seat body whose bottom end abuts against the top surface of the microporous atomizing sheet and a limiting plate extending outward from the outer wall of the top seat body in a circumferential direction; a connecting hole is formed in the top seat body to connect the microporous atomizing sheet with the air outlet channel; the limiting plate abuts against the top wall of the accommodating groove to limit the top seat body from separating from the base along the first direction.

[0023] In a possible design, a platform for supporting the microporous atomization sheet is formed on the top of the base, and an atomization port is formed in the center of the platform; and a plurality of annular protrusions are provided on the platform at circumferential intervals.

[0024] In a possible design, the base is made of a flexible material, and the microporous atomizing sheet is configured to be pressed against the annular protrusion and to place the annular protrusion in a compressed state in the first direction.

[0025] In a possible design, the liquid storage shell has a ventilation valve structure that allows the liquid storage cavity to communicate with external gas.

[0026] In one possible design, the cross-sectional area of ​​the liquid inlet channel is 8 mm 2 -24 mm 2 .

[0027] In one possible design, the bottom wall of the liquid storage chamber is inclined in the direction of the liquid storage chamber toward the atomization chamber, and the end of the bottom wall of the liquid storage chamber away from the liquid inlet channel is higher than the end of the bottom wall of the liquid storage chamber close to the liquid inlet channel.

[0028] In one possible design, an air inlet channel is further provided in the liquid storage shell; the air inlet channel sequentially includes a first air inlet channel extending from the bottom end of the liquid storage shell along the first direction and a second air inlet channel extending along the second direction, and the second air inlet channel is connected to the air outlet channel; the first air inlet channel is not connected to the liquid inlet channel, and the second air inlet channel is provided on the side of the microporous atomization plate that is biased towards the air outlet channel. Beneficial effects

[0029] The beneficial effect of the electronic atomization device provided by one embodiment of the present application is that the shell component of the electronic atomization device is formed with a suction nozzle for the user to directly inhale, which is convenient for the user to inhale directly through the suction nozzle. There is no need to equip a mask or other inhalation accessories when using it. The structure is simple and easy to use. The microporous atomization sheet sprays the aerosol into the air outlet channel along the first direction, that is, it adopts an upward atomization method to make the aerosol evenly distributed, which can effectively reduce the loss, increase the atomization amount, and achieve a better suction effect. The suction start component is used to detect and sense the change of the suction airflow in the shell component to start the microporous atomization sheet, that is, when the user inhales and uses the atomizer, the microporous atomization sheet can be started to atomize the aerosol generating matrix to generate an aerosol for the user to inhale, thereby realizing self-starting of suction; and when the user does not inhale, the microporous atomization sheet stops working, avoiding aerosol waste, and providing a good user experience. Among the aerosols generated by the microporous atomizer sheet, more than 98% of the aerosols have a particle size of 1-4um; the aerosol particles are fine, easy to absorb, and do not choke the throat; the aerosol particles within this range can better pass through the respiratory tract and more effectively reach the human trachea, bronchi, alveoli and lower lungs, with better therapeutic effects; the particle size level of the aerosol generated by the electronic atomizer device of this application reaches and exceeds the particle size standard of the medical nebulizer level.

[0030] Another embodiment of the present application provides an electronic atomization device with the following beneficial effects: the liquid storage chamber and the air outlet channel are arranged at intervals, and by setting an atomization bin and a liquid inlet channel, a lateral liquid supply structure is formed to supply liquid to the microporous atomization sheet. The aerosol generating matrix in the liquid storage chamber can smoothly enter the atomization bin through the liquid inlet channel, so that the liquid supply is smooth and stable; the aerosol generating matrix in the atomization bin can maintain contact with the bottom surface of the microporous atomization sheet, and will not cause excessive pressure on the microporous atomization sheet, thereby reducing the impact on the microporous atomization sheet and keeping the microporous atomization sheet in a normal atomizing state; and can exert the best atomization effect of the microporous atomization sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] FIG1 is a schematic cross-sectional view of an electronic atomization device according to an embodiment of the present application;

[0033] FIG2 is a schematic cross-sectional view of an atomizer according to an embodiment of the present application;

[0034] FIG3 is a schematic cross-sectional view of the structure of the base of the atomizer provided in one embodiment of the present application, wherein a microporous atomizing sheet is disposed in the base;

[0035] FIG4 is an exploded view of the assembly of a microporous atomizing plate and a base of an atomizer provided in one embodiment of the present application;

[0036] FIG5 is a schematic cross-sectional view of micropores in a microporous atomizing sheet provided in one embodiment of the present application;

[0037] FIG6 is a schematic diagram of the cross-sectional structure of an atomizer provided in one embodiment of the present application with the base removed;

[0038] FIG7 is a schematic diagram of an exploded structure of an atomizer provided in one embodiment of the present application;

[0039] FIG8 is a schematic cross-sectional view of an air inlet channel of an atomizer according to an embodiment of the present application;

[0040] FIG9 is a schematic diagram of the cross-sectional structure of an atomizer with a microporous atomizing sheet provided in one embodiment of the present application in different gas outlet directions;

[0041] FIG10 is a comparison diagram of a smoke volume stability test provided in an embodiment of the present application.

[0042] In the figures, the following reference numerals are indicated: 1000, atomizer; 2000, power supply assembly; 3000, housing assembly; 2001, puff start assembly; 1. atomizer housing; 101, atomizing housing; 102, liquid storage housing; 1021, main housing; 1022, top cover; 103, nozzle; 2. base; 201, base; 202, top seat; 2021, top seat body; 2022, limit plate; 3. microporous atomizing plate; 301, substrate; 302, piezoelectric ceramic ring; 3011, microporous area; 18, micropore; 1801, liquid inlet end; 1802, liquid storage end; 4. air outlet channel; 5, liquid storage chamber; 6. atomizing chamber; 7, liquid inlet channel; 8. Mounting seat; 9. Receiving groove; 10. Connecting port; 11. Bump; 12. Embedding groove; 13. Connecting hole; 14. Wall platform; 1401. Atomizing port; 15. Annular protrusion; 16. Air inlet channel; 1601. First air inlet channel; 1602. Second air inlet channel; 17. Air exchange valve structure; X, first direction; Y, second direction. Modes for Carrying Out the Invention

[0043] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0044] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0046] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0047] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations 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 any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0048] In order to illustrate the technical solution described in this application, the following is a detailed description with reference to specific drawings and embodiments.

[0049] Please refer to Figures 1 and 2. An embodiment of the present application provides an electronic atomization device for atomizing an aerosol-generating matrix to generate an aerosol, including a shell assembly 3000, a microporous atomization sheet 3 and a suction start assembly 2001. The shell assembly 3000 is formed with an air outlet channel 4 extending along a first direction X; the microporous atomization sheet 3 is arranged in the shell assembly 3000; at least the central portion of the microporous atomization sheet 3 is exposed in the air outlet channel 4, the microporous atomization sheet 3 is used to atomize the aerosol-generating matrix to generate an aerosol, and spray the aerosol into the air outlet channel 4 along the first direction X; and in the aerosol generated by the microporous atomization sheet 3, more than 98% of the aerosol particles have a particle size range of 1-4 μm; a suction nozzle portion 103 is formed at one end of the shell assembly 3000 away from the microporous atomization sheet 3 along the first direction X, which is connected to the air outlet channel 4; the suction start assembly 2001 is used to sense changes in the airflow in the shell assembly 3000 to activate the microporous atomization sheet 3.

[0050] Specifically, the working principle of the microporous atomizer sheet 3 is to use tiny ultrasonic waves to make the microporous atomizer sheet 3 generate high-frequency vibrations. Many tiny holes are provided in the central area of ​​the microporous atomizer sheet 3, so that the aerosol-generating matrix is ​​dispersed into tiny droplets by using the tiny holes on the microporous atomizer sheet 3, and then a mist-like aerosol is formed; the microporous atomizer sheet 3 has high atomization efficiency, low energy consumption, and is noiseless in use; it has the characteristics of high efficiency, energy saving and environmental protection.

[0051] The microporous atomizing sheet 3 faces the air outlet channel 4, so that the microporous atomizing sheet 3 can quickly spray the generated aerosol into the air outlet channel 4, and can efficiently transport the aerosol to the air outlet channel 4, thereby increasing the atomization amount.

[0052] Referring to Figure 1, a suction nozzle portion 103 that is connected to the air outlet channel 4 is formed at one end of the shell assembly 3000 away from the microporous atomization sheet 3 along the first direction X. Specifically, the suction nozzle portion 103 is formed at the top of the shell assembly 3000, and the microporous atomization sheet 3 sprays the aerosol upward into the air outlet channel 4, so that the user can directly inhale and use the electronic atomization device through the suction nozzle portion 103; while in the existing mesh medical atomizer, a mask or other inhalation accessories are required to allow the user to breathe through the mouth or nose to absorb the aerosol; the electronic atomization device of the present application is undoubtedly more streamlined in structure and more convenient to use.

[0053] In some embodiments, the suction start component 2001 includes a microphone, which is used to detect and sense changes in the airflow in the shell component 3000 to determine whether to start the microporous atomizer sheet 3. The working principle of the microphone is: when the user uses the electronic atomizer device by inhaling through the mouthpiece 103, a gas flow is generated inside the shell component 3000, and the diaphragm inside the microphone will feel the pressure difference and produce a slight deformation, squeezing the capacitor cavity inside the microphone. The change in capacitance inside the microphone generates an output of a current signal, thereby giving a signal to start the microporous atomizer sheet 3, thereby realizing the suction self-start function. In some embodiments, the electronic atomizer device also includes a power supply component 2000, which responds to the sensing signal of the suction start component 2001 to power the microporous atomizer sheet 3. The power supply component 2000 includes a battery, which is electrically connected to the microporous atomizer sheet 3 through internal wiring or an electrical connection method such as a pin connector.

[0054] Then, the microporous atomizing sheet 3 of the electronic atomizing device of the present application can realize self-starting by suction through the suction starting component 2001, that is, when the user inhales and uses the electronic atomizing device, the microporous atomizing sheet 3 can be started to atomize the aerosol generating matrix to generate an aerosol for the user to inhale, thereby realizing self-starting by suction; and when the user does not inhale, the microporous atomizing sheet 3 stops working, that is, no aerosol is generated, thereby avoiding waste of aerosol, optimizing the use experience, and improving the convenience and comfort of the user when using it.

[0055] It is understandable that among the aerosols generated by the microporous atomizer sheet 3, more than 98% of the aerosols have particle sizes ranging from 1 to 4 μm. Specifically, among the aerosols generated by the microporous atomizer sheet 3, more than 98% of the aerosols have particle sizes of 1 μm, 2 μm, 3 μm, 4 μm, etc. This makes the aerosol particles generated by the microporous atomizer sheet 3 fine, easy to absorb, and not choking, with high atomization quality. Moreover, aerosol particles within this particle size range can better pass through the respiratory tract. That is, when the electronic atomizer device of the present application is used in the medical field, the aerosol can more effectively reach the user's lesions, such as the trachea, bronchi, alveoli, and lower lungs, and the drug penetration and treatment effect are better.

[0056] 4 and 5 , in some embodiments, the microporous atomizer sheet 3 includes a stacked substrate 301 and a piezoelectric ceramic ring 302 ; a microporous area 3011 is provided at the center of the substrate 301 , and the microporous area 3011 is provided with one or more micropores 18 ; and the central axis of the air outlet channel 4 passes through the microporous area 3011 .

[0057] Specifically, the microporous area 3011 is formed at the center of the piezoelectric ceramic ring 302 and the substrate 301. During atomization, the microporous atomization sheet 3 drives the substrate 301 to vibrate through the oscillation of the piezoelectric ceramic ring 302, and disperses the liquid aerosol generation matrix through the micropores 18 to form aerosol particles, thereby realizing liquid atomization.

[0058] The central axis of the air outlet channel 4 passes through the microporous area 3011, that is, the microporous atomizing sheet 3 sprays the aerosol into the center position of the air outlet channel 4, so that the aerosol can better pass through the air outlet channel 4 to reach the suction nozzle 103, which can effectively reduce the loss and increase the atomization amount.

[0059] As can be understood, the microporous atomizing sheet 3 has an overall circular structure, with smooth edges and no protruding sharp corners, which can reduce stress concentration and damage to the microporous atomizing sheet 3. The material of the piezoelectric ceramic ring 302 can be, but is not limited to, lead zirconate titanate, barium carbonate, or potassium sodium niobate; the material of the substrate 301 can be, but is not limited to, stainless steel, nickel-cobalt alloy, titanium alloy, copper alloy, or palladium-nickel alloy, or can also be a polymer material such as polyimide, or a glass-based inorganic non-metallic material.

[0060] In some embodiments, the outer diameter of the piezoelectric ceramic outer ring 3 is between 8 and 20 mm, and the inner ring diameter of the piezoelectric ceramic outer ring 3 is between 2 and 8 mm. The diameter of the substrate 301 is between 10 and 22 mm, and the diameter of the substrate 301 is slightly larger than the outer diameter of the piezoelectric ceramic ring 302. Keeping the diameter of the microporous atomizer 3 within a reasonable range ensures sufficient aerosol formation during atomization while also avoiding the problem of an oversized microporous atomizer 3 that is difficult to assemble.

[0061] In other embodiments, the number of micropores 18 in the microporous region 3011 ranges from 1,000 to 10,000. It is understood that the number of micropores 18 determines the amount of atomization of the microporous atomizer 3. A number of micropores 18 less than 1,000 results in too low an atomization amount of the microporous atomizer 3. A number of micropores 18 greater than 10,000 results in an overly dense arrangement of the micropores 18, making the microporous atomizer 3 susceptible to clogging, thereby reducing the reliability and lifespan of the microporous atomizer 3.

[0062] In some other embodiments, the operating frequency of the microporous atomizer sheet 3 is configured to be between 100kHz and 180kHz, so that the vibration frequency of the microporous atomizer sheet 3 is moderate, which can ensure that the amount of aerosol formed after atomization can meet the user's usage needs. The driving voltage of the microporous atomizer sheet 3 is between 60Vpp and 120Vpp (peak value). The appropriate Vpp value can ensure the stable operation of the mesh sheet. Too low VPP will reduce the consistency of the mist, and too high Vpp will cause additional energy loss and heat. The power of the microporous atomizer sheet 3 is between 0.5W and 5W. The appropriate driving power can enable the microporous atomizer sheet 3 to maintain a normal working state and generate a suitable amount of atomization.

[0063] 5 , in some embodiments, the cross-section of the micropore 18 in the first direction X is conical, the end of the micropore 18 close to the suction nozzle portion 103 along the first direction X is the liquid outlet end 1802, and the end of the micropore 18 away from the suction nozzle portion 103 along the first direction X is the liquid inlet end 1801, and the aperture of the micropore 18 at the liquid inlet end 1801 is larger than the aperture of the micropore 18 at the liquid outlet end 1802; wherein, the aperture range of the micropore 18 at the liquid outlet end 1802 is 1 μm to 4 μm.

[0064] Specifically, the aperture size of the micropore 18 at the liquid outlet end 1802 determines the size of the aerosol formed after atomization. By setting the aperture range of the micropore 18 at the liquid outlet end 1802 to 1μm to 4μm, the microporous atomization sheet 3 can disperse the aerosol-generating matrix to form aerosol particles with a sufficiently small particle size, so that in the aerosol generated by the atomization of the microporous atomization sheet 3, the proportion of aerosol particles with a particle size range of 1um-4um reaches 98%, so that the aerosol particles generated by the microporous atomization sheet 3 are fine, easy to absorb, not choking, and have high atomization quality; and the aerosol particles within this particle size range can better pass through the respiratory tract. When the electronic atomization device of the present application is used in the medical field, the aerosol can more effectively reach the user's lesions, such as the trachea, bronchi, alveoli and lower lungs, that is, the drug penetration or treatment effect is better. Existing mesh nebulizers cannot control the particle size of aerosols within this range. The particle size of aerosols generated by current mesh nebulizers is usually concentrated in the range of 5um-10um. Particles of this size usually settle in the upper airway. For diseases that require medication in the lower lungs or bronchi, such as asthma and chronic obstructive pulmonary disease, it cannot play a good role in medication and the treatment effect is poor.

[0065] In some embodiments, the pore size range of the micropores 18 at the liquid outlet end 1802 is set to be 1 μm to 2 μm, so as to further improve the atomization accuracy of the microporous atomization sheet 3 .

[0066] It can be understood that the particle size level of the aerosol generated by the electronic atomization device of the present application can not only meet the particle size standard of the medical atomizer level, but even meet the particle size level requirements of the atomizer in the field of electronic cigarette products. The electronic atomization device of the present application can be expanded to apply to products in other fields such as electronic cigarettes, and its application uses are not single.

[0067] For example, the electronic atomization device of the present application is applied to the field of electronic cigarette products, and the aerosol generating matrix can be tobacco oil; that is, the user can use the electronic atomization device of the present application as an electronic cigarette, and the inhalation method of the electronic atomization device of the present application is also in line with the usage habits of the atomizer in the field of electronic cigarette products, and the user experience is good, which makes the application field of the electronic atomization device of the present application very wide.

[0068] It should be noted that the electronic atomization device of the present application uses a microporous atomization sheet 3 to atomize the aerosol-generating matrix, and the viscosity of the aerosol-generating matrix is ​​required to be less than 10 cps (Brookfield viscosity units). That is, when the electronic atomization device of the present application is used in the field of electronic cigarette products, the aerosol-generating matrix is ​​a water-based tobacco liquid. It is understandable that because the microporous atomization sheet 3 is used to atomize the aerosol-generating matrix, and the micropores 18 of the microporous atomization sheet 3 are of high precision, if the viscosity of the aerosol-generating matrix is ​​too high, it will clog the micropores 18 of the microporous atomization sheet 3, thereby affecting the atomization effect.

[0069] In other embodiments, the pore size of the micropore 18 at the liquid inlet end 1801 ranges from 20 μm to 100 μm, which can meet the liquid inlet volume and ensure the atomization volume.

[0070] 2 and 6 , another embodiment of the present application further provides an electronic atomization device, including an atomizer 1000, the atomizer 1000 including an atomizer housing 1, a base 2 and a microporous atomizing sheet 3; the atomizer housing 1 is formed with a mouthpiece 103 and an air outlet channel 4 extending along a first direction X, and the atomizer housing 1 also has a liquid storage chamber 5 for storing an aerosol-generating matrix; and the liquid storage chamber 5 is spaced from the air outlet channel 4 along a second direction Y, and the second direction Y is perpendicular to the extension direction of the first direction X; the base 2 is arranged in the atomizer housing 1 and is used to isolate the air outlet channel 4 from the liquid storage chamber 5; an atomization bin 6 and a liquid inlet channel 7 connected between the atomization bin 6 and the liquid storage chamber 5 are formed in the base 2; the microporous atomizing sheet 3 is installed in the base 2, and at least the center portion of the end face of the microporous atomizing sheet 3 facing away from the mouthpiece 103 is exposed in the atomization bin 6.

[0071] Specifically, referring to Figure 1 , the electronic atomization device includes a housing assembly 3000, of which the atomizer housing 1 of the atomizer 1000 is a portion. The electronic atomization device also includes a power supply assembly 2000 disposed below the atomizer 1000. The power supply assembly 2000 includes a housing connected to the atomizer housing 1. The housing of the power supply assembly 2000 and the atomization chamber housing 1 together form the housing assembly 3000.

[0072] 2 , the liquid storage chamber 5 and the air outlet channel 4 are spaced apart along the second direction Y, that is, the central axis of the liquid storage chamber 5 and the central axis of the air outlet channel 4 are spaced apart along the second direction Y, and the liquid storage chamber 5 is located on the side of the air outlet channel 4. The second direction Y is the Y direction shown in the figure.

[0073] The microporous atomizing sheet 3 is arranged parallel to the second direction Y, that is, the air outlet channel 4, the microporous atomizing sheet 3 and the atomizing chamber 6 are arranged in sequence along the first direction X, that is, the bottom surface of the microporous atomizing sheet 3 faces the atomizing chamber 6, and the top surface of the microporous atomizing sheet 3 faces the air outlet channel 4, so that after the microporous atomizing sheet 3 atomizes the aerosol generating matrix in the atomizing chamber 6 and generates aerosol, the generated aerosol can be quickly sprayed into the air outlet channel 4 in a positive direction along the first direction X, and the aerosol can be efficiently transported to the air outlet channel 4, so that the aerosol is evenly distributed and the atomization amount is increased.

[0074] It can be understood that the liquid storage chamber 5 is located on the side of the microporous atomization sheet 3, and the liquid inlet channel 7 is connected to the liquid storage chamber 5 and the atomization bin 6. The aerosol generating matrix of the liquid in the liquid storage chamber 5 can automatically flow into the atomization bin 6 along the liquid inlet channel 7 under the action of its own gravity and fill the atomization bin 6, so that the aerosol generating matrix in the atomization bin 6 can maintain contact with the bottom surface of the microporous atomization sheet 3, and can stably supply liquid to the microporous atomization sheet 3, thereby improving the liquid supply reliability of the atomizer 1000; the atomization bin 6 is formed at the bottom of the microporous atomization sheet 3, that is, the aerosol generating matrix of the liquid in the atomization bin 6 will not cause excessive pressure on the microporous atomization sheet 3, and will not affect the mist output state of the microporous atomization sheet 3; and, after the aerosol generating matrix in the atomization bin 6 is partially consumed by the microporous atomization sheet 3, the aerosol generating matrix in the liquid storage chamber 5 can be replenished to the atomization bin 6 in time.

[0075] In some embodiments, the base 2 is a seal, which is used to isolate the air outlet channel 4 from the liquid storage chamber 5 to prevent the liquid aerosol-generating matrix in the liquid storage chamber 5 from flowing into the air outlet channel 4, so that the liquid aerosol-generating matrix in the liquid storage chamber 5 can only enter the atomization chamber 6 through the liquid inlet channel 7 to supply liquid to the microporous atomization sheet 3, thereby forming a good sealing effect on the inside of the atomizer housing 1.

[0076] The electronic atomization device of the present application arranges the liquid storage chamber 5 and the air outlet channel 4 at intervals in the second direction Y, and by setting the atomization bin 6 and the liquid inlet channel 7, a lateral liquid supply structure is formed to supply liquid to the microporous atomization sheet 3. The aerosol generating matrix in the liquid storage chamber 5 can smoothly enter the atomization bin 6 through the liquid inlet channel 7, so that the liquid supply is smooth and stable; the aerosol generating matrix in the atomization bin 6 can maintain contact with the bottom surface of the microporous atomization sheet 3, and will not cause excessive pressure on the microporous atomization sheet 3, reducing the impact on the microporous atomization sheet 3, so that the microporous atomization sheet 3 maintains a normal fogging state; and can exert the best atomization effect of the microporous atomization sheet 3.

[0077] In addition, the liquid storage chamber 5 and the air outlet channel 4 are spaced apart from each other, and the structural interference between the liquid storage chamber 5 and the air outlet channel 4 in the atomizer housing 1 is small, which is structurally conducive to increasing the liquid storage capacity of the liquid storage chamber 5 and ensuring sufficient liquid supply.

[0078] 2 , 6 , and 7 , in some embodiments, the atomizer housing 1 includes an atomizing shell 101 and a liquid storage shell 102 arranged side by side along a second direction Y, the atomizing shell 101 is formed with an air outlet channel 4 and a suction nozzle 103 , and a liquid storage cavity 5 is formed in the liquid storage shell 102 ; the base 2 is connected between the atomizing shell 101 and the liquid storage shell 102 .

[0079] Specifically, the air outlet channel 4 is formed within the atomizing housing 101, and the liquid storage chamber 5 is formed within the liquid storage housing 102. That is, the air outlet channel 4 and the liquid storage chamber 5 are formed in two separate housings, and the liquid storage housing 102 and the atomizing housing 101 do not interfere with each other structurally. Forming the liquid storage chamber 5 independently within the liquid storage housing 102 facilitates designing a sufficient capacity for the liquid storage chamber 5, increasing the liquid storage capacity and ensuring a stable liquid supply.

[0080] 6 and 7 , in some embodiments, the liquid storage shell 102 includes a main shell 1021 having a liquid storage chamber 5 and a mounting seat 8 provided at the bottom end of the main shell 1021 and extending outward; the base 2 is installed in the mounting seat 8 and connected to the main shell 1021 so that the liquid inlet channel 7 is connected to the liquid storage chamber 5; the bottom end of the atomizer shell 101 is installed on the mounting seat 8, and the atomizer shell 101 also has a receiving groove 9 for accommodating the base 2, and the receiving groove 9 is connected to the air outlet channel 4.

[0081] Specifically, the mounting base 8 of the liquid storage housing 102 extends outward from the bottom of the main housing 1021 for mounting the base 2 and the atomizing housing 101. Referring to FIG5 , the mounting base 8 is formed with a recess 12 into which the base 2 can be inserted. Furthermore, a connection port 10 communicating with the liquid storage chamber 5 is formed on the sidewall of the main housing 1021. A protrusion 11 capable of inserting into the connection port 10 is formed on one side of the base 2. The base 2 is mounted in the recess 12, with the protrusion 11 inserted into the connection port 10. A liquid inlet channel 7 is formed in the base 2, with a liquid inlet formed on the side of the protrusion 11. This allows the liquid storage chamber 5 in the main housing 1021 to communicate with the liquid inlet channel 7, ensuring that the aerosol-generating substrate in the liquid storage chamber 5 can flow into the liquid inlet channel 7.

[0082] Optionally, the liquid inlet channel 7 may extend along the second direction Y. The liquid inlet channel 7 may also be tilted, and when the liquid inlet channel 7 is tilted, the end of the liquid inlet channel 7 away from the atomization bin 6 is higher than the end of the liquid inlet channel 7 close to the atomization bin 6, so that the liquid supply is smooth.

[0083] Referring to Figures 2 and 6 , a receiving groove 9 is formed at the bottom of the atomizing housing 101. The bottom end of the atomizing housing 101 is mounted on the mounting base 8, allowing the base 2 to be accommodated within the receiving groove 9, thereby enclosing the atomizing housing 101. The receiving groove 9 is connected to the air outlet passage 4, allowing the microporous atomizing sheet 3 on the base 2 to spray atomized gas into the air outlet passage 4.

[0084] Optionally, the base 2 and the mounting seat 8 may be fixed by, but not limited to, snap-fitting, screw connection, bonding, etc.; the atomizing shell 101 and the mounting seat 8 may be fixed by, but not limited to, snap-fitting, screw connection, bonding, etc., and no specific limitation is given to this.

[0085] Referring to Figures 2, 3, and 4, in some embodiments, the base includes a base 201 and a top seat 202, and the microporous atomization sheet 3 is clamped between the base 201 and the top seat 202; an atomization bin 6 and a liquid inlet channel 7 are provided in the base 201, and the base 201 is provided on the mounting seat 8 and connected to the main shell 1021 so that the liquid inlet channel 7 is connected to the liquid storage chamber 5; the atomization shell 101 and the top seat 202 are limited to limit the top seat 202 from separating from the base 201 along the first direction X.

[0086] Specifically, the base 201 is provided with an atomizing bin 6 and a liquid inlet channel 7, a bump 11 is formed on the side end of the base 201, and the liquid inlet channel 7 forms a liquid inlet on the side of the bump 11. The base 201 is provided on the mounting seat 8 and the bump 11 is embedded in the connecting port 10 of the main housing 1021, so that the liquid storage chamber 5 in the main housing 1021 can be connected to the liquid inlet channel 7 and the atomizing bin 6, which is convenient and fast to connect and has a simple and reliable structure. The microporous atomizing sheet 3 is provided on the base 201 and the bottom surface of the microporous atomizing sheet 3 is exposed in the atomizing bin 6, which can provide a stable liquid supply to the microporous atomizing sheet 3.

[0087] In some embodiments, the base 201 is made of a flexible material, and the material of the base 201 includes at least one of silicone, rubber and plastic, so that the base 201 can serve as a seal. The protrusion 11 on the base 201 is embedded in the connecting port 10 of the main shell 1021 to seal the liquid storage chamber 5, so that the aerosol generating matrix in the liquid storage chamber 5 can only flow into the liquid inlet channel 7 to enter the atomization chamber 6.

[0088] With reference to Figures 2 and 3, the microporous atomizing sheet 3 is clamped between the base 201 and the top seat 202, that is, the base 201 and the top seat 202 can fix the microporous atomizing sheet 3 up and down, and provide stable support for the microporous atomizing sheet 3. By limiting the atomizing shell 101 and the top seat 202 to limit the top seat 202 from the base 201 along the first direction X, the base 2 will be limited between the mounting seat 8 and the atomizing shell 101, so that the microporous atomizing sheet 3 will always remain firmly clamped by the base 201 and the top seat 202, ensuring structural reliability. Among them, the first direction X is the X direction shown in the figure, and the first direction X is the extension direction of the air outlet channel 4.

[0089] 1-3 , in some embodiments, the top seat 202 includes a top seat body 2021 whose bottom end is abutted against the microporous atomizing sheet 3 and a limiting plate 2022 extending outward from the outer wall of the top seat body 2021 in a circumferential direction; a connecting hole 13 is formed in the top seat body 2021 to connect the microporous atomizing sheet 3 with the air outlet channel 4; the limiting plate 2022 abuts against the top wall of the accommodating groove 9 to limit the top seat body 2021 from separating from the base 201 along the first direction X.

[0090] It can be understood that the bottom end of the top seat body 2021 is against the top surface of the microporous atomizing sheet 3, so that the microporous atomizing sheet 3 is stably clamped between the top seat body 2021 and the base 201, and the atomizing structure is stable.

[0091] 1 , the inner length of the accommodating groove 9 in the atomizing shell 101 in the second direction Y is greater than the inner diameter of the air outlet channel 4. The limiting plate 2022 abuts against the top wall of the accommodating groove 9 to effectively limit the top seat 202, thereby preventing the top seat 202 from separating from the base 201 along the first direction X. The structure of the atomizing shell 101 is used to limit the top seat 202, which is simple, reliable, and ingeniously designed.

[0092] A connecting hole 13 is formed in the top seat body 2021, which is connected to the air outlet channel 4 and the microporous atomizing sheet 3, so that the top surface of the microporous atomizing sheet 3 can face the air outlet channel 4, which is beneficial for the microporous atomizing sheet 3 to spray the atomized gas into the air outlet channel 4 and improve the atomization efficiency.

[0093] 1 and 3 , in some embodiments, the top of the top seat body 2021 is an annular structure that matches the inner diameter of the air outlet channel 4, and the top of the top seat body 2021 is embedded in the air outlet channel 4; the top seat 202 is made of a flexible material, and the material of the top seat 202 includes at least one of silicone, rubber and plastic, that is, the top seat 202 can serve as a seal to form an effective seal on the bottom of the air outlet channel 4, thereby preventing aerosol leakage, allowing the user to inhale smoothly, and ensuring the atomization amount of the atomizer 1000; and the top seat 202 is flexibly abutted against the microporous atomization sheet 3, which will not damage the microporous atomization sheet 3.

[0094] 2 and 3 , in some embodiments, a platform 14 for supporting a microporous atomizer is formed at the top of the base 201 , and an atomization port 1401 is formed at the center of the platform 14 ; a plurality of annular protrusions 15 spaced circumferentially are provided on the platform 14 .

[0095] It can be understood that the atomization chamber 6 passes through the wall platform 14 and forms an atomization port 1401 at the center of the wall platform 14 , so that the center position of the bottom surface of the microporous atomization sheet 3 can contact the aerosol generating matrix in the atomization chamber 6 .

[0096] Specifically, the wall 14 is provided with a plurality of annular protrusions 15 spaced circumferentially, the bottom surface of the microporous atomizing sheet 3 abuts against the annular protrusions 15, and the base 201 is a sealing member, the annular protrusions 15 will flexibly abut against the microporous atomizing sheet 3 without damaging the microporous atomizing sheet 3.

[0097] In some embodiments, the microporous atomizing sheet 3 is configured to press against the annular protrusion 15 and place the annular protrusion 15 in a compressed state in the second direction Y.

[0098] It can be understood that the top seat 202 is limitedly matched with the atomizing shell 101 and the bottom end of the top seat 202 is abutted against the microporous atomizing sheet 3. The top seat 202 acts on the microporous atomizing sheet 3 to squeeze the microporous atomizing sheet 3 and the annular protrusion 15; so that the microporous atomizing sheet 3 can be tightly abutted against the multiple annular protrusions 15 on the base 201, which can effectively prevent the aerosol-generating matrix of the liquid from leaking from between the microporous atomizing sheet 3 and the base 201; and the use of this upper and lower fixing method imposes extremely small additional load on the microporous atomizing sheet 3, and does not affect the atomization state and life of the microporous atomizing sheet 3.

[0099] Specifically, the compression amount of the annular protrusion 15 in the second direction Y ranges from 0.2 mm to 0.6 mm, ensuring that the microporous atomizing sheet 3 is in close contact with the base 201 ; the compression amount of the annular protrusion 15 in the second direction Y can specifically be 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, or 0.6 mm.

[0100] 6 and 7 , in some embodiments, the liquid storage housing 102 has a ventilation valve structure 17 that allows the liquid storage chamber 5 to communicate with the external air.

[0101] Specifically, the liquid storage housing 102 further includes a top cover 1022, mounted on top of the main housing 1021, for sealing the liquid storage chamber 5. The top cover 1022 can be easily attached and detached from the main housing 1021, facilitating the filling of the liquid storage chamber 5 to replenish the aerosol generating base. A ventilation valve structure 17 is mounted on the top cover 1022, allowing the gas inside the liquid storage chamber 5 to communicate with the outside air through the ventilation valve structure 17.

[0102] It is understandable that during the atomization process of the atomizer 1000, bubbles will be generated in the atomization chamber 6. If the liquid storage chamber 5 cannot be connected to the external air, the bubbles will not be able to be discharged from the atomization chamber 6, so that the atomization chamber 6 is occupied by bubbles, making it difficult for the aerosol generating matrix to enter the atomization chamber 6, thereby causing the microporous atomizing sheet 3 to dry out and its performance to decay rapidly until it is damaged. By providing a ventilation valve structure 17, under a certain negative pressure, the bubbles can be discharged into the liquid storage chamber 5 through the liquid inlet channel 7. After the bubbles enter the liquid storage chamber 5, they can be ventilated with the outside world through the ventilation valve structure 17 to achieve air pressure balance, which can eliminate the bubbles, and then the aerosol generating matrix in the liquid storage chamber 5 can stably supply liquid to the atomization chamber 6, and the liquid supply is stable.

[0103] In some embodiments, the cross-sectional area of ​​the liquid inlet channel 7 is 8 mm 2 -24mm 2 .

[0104] It is understandable that the structure of the liquid inlet channel 7 can be a through-hole structure or a rectangular channel structure to meet the requirement of conducting the liquid storage chamber 5 and the atomization chamber 6, and there is no limitation on this.

[0105] For example, the liquid supply channel 7 may be plugged with special structural members such as metal tubes, plastic tubes, etc. to adjust the liquid supply and ventilation effects.

[0106] In some embodiments, the present application tests the change in the amount of atomization of four different electronic atomization devices during inhalation. The four electronic atomization devices respectively use liquid inlet channels 7 with different cross-sectional areas. Specifically, the cross-sectional areas of the liquid inlet channels 7 of the four electronic atomization devices are 2 mm and 1 mm, respectively. 2 , 5mm 2 , 8mm 2 , 12mm 2 The test method is as follows: use a smoke machine to smoke four electronic atomization devices with liquid inlet channels 7 of different cross-sectional areas. Set the atomization cycle to 3s / puff (puff), puff for 3s and rest for 8s, and the puffing capacity is 55mL. After 10 consecutive puffs, weigh the mass difference of the atomizer 1000 of the entire electronic atomization device before and after atomization and divide it by the number of puffs as the average smoke volume. When the average smoke volume decays to 50% of the initial average smoke volume, the atomizer 1000 is considered to be unable to work normally, and the number of puffs at this time is the number of puffs that can stably work under different cross-sectional areas of the liquid inlet channel 7. If the smoke volume decays by less than 20% after 100 consecutive puffs, it is considered that the atomizer 1000 can work normally under this ventilation condition.

[0107] As shown in Table 1 below, when the cross-sectional area of ​​the liquid inlet channel 7 is 2 mm 2 When the cross-sectional area of ​​the liquid inlet channel 7 is 5mm 2 When the cross-sectional area of ​​the liquid inlet channel 7 of the nebulizer 1000 is greater than 8mm 2 When , the atomizer 1000 can work normally without attenuation within 100 puffs.

[0108] Therefore, the optimal solution for designing the cross-sectional area of ​​the liquid inlet channel 7 is greater than 8 mm. 2 Due to the internal structure of the atomizer housing 1, the upper limit of the cross-sectional area of ​​the liquid inlet channel 7 is set to be less than 24mm 2 .

[0109] Table 1

[0110] Referring to Figure 1, in some embodiments, the bottom wall of the liquid storage chamber 5 is inclined in the direction of the liquid storage chamber 5 toward the atomization chamber 6, and the end of the bottom wall of the liquid storage chamber 5 away from the liquid inlet channel 7 is higher than the end of the bottom wall of the liquid storage chamber 5 close to the liquid inlet channel 7.

[0111] It can be understood that the bottom wall of the liquid storage chamber 5 is inclined so that the aerosol-generating matrix in the liquid storage chamber 5 can flow into the atomization chamber 6 through the liquid inlet channel 7 along the bottom wall of the liquid storage chamber 5 under the action of gravity, so that the liquid supply is smooth.

[0112] Referring to Figure 8, in some embodiments, an air inlet channel 16 is further provided in the liquid storage shell 102; the air inlet channel 16 sequentially includes a first air inlet channel 1601 extending from the bottom end of the liquid storage shell 102 along the first direction X and a second air inlet channel 1602 extending along the second direction Y, and the second air inlet channel 1602 is connected to the air outlet channel 4; the first air inlet channel 1601 is not connected to the liquid inlet channel 7, and the second air inlet channel 1602 is provided on the side of the microporous atomization sheet 3 that is biased towards the air outlet channel 4.

[0113] It can be understood that the air inlet channel 16 is connected to the air outlet channel 4, so that the user can inhale and use the atomizer 1000, and the external air enters the air outlet channel 4 through the air inlet channel 16, mixes with the aerosol, and brings the aerosol out to the user's mouth.

[0114] The first air inlet channel 1601 extends along the first direction X and is not connected to the liquid inlet channel 7 to avoid leakage caused by the first air inlet channel 1601 and the liquid inlet channel 7, thereby improving the reliability of the atomizer 1000. The second air inlet channel 1602 is arranged along the second direction Y and is located above the microporous atomizing plate 3, which can avoid the atomizing chamber 6 and the liquid inlet channel 7. The second air inlet channel 1602 is close to the microporous atomizing plate 3, so that the external air entering the air outlet channel 4 can better carry out the aerosol generated by the atomization of the microporous atomizing plate 3, thereby increasing the atomization amount.

[0115] In some embodiments, the cross-sectional area of ​​the first air inlet channel 1601 and the second air inlet channel 1602 are both within a range of 3.0 mm. 2 -6.0mm 2 , specifically 3.0mm 2 , 4.0mm 2 , 5.0mm 2 , 6.0mm 2 ; Make the air intake of the atomizer 1000 just right, improving the smoking taste.

[0116] As can be understood, the atomizer 1000 of the present application forms a lateral liquid supply structure by providing a liquid storage chamber 5, an atomizing chamber 6, and a liquid inlet channel 7 to supply liquid to the microporous atomizing plate 3. The aerosol-generating matrix in the liquid storage chamber 5 can smoothly enter the atomizing chamber 6 through the liquid inlet channel 7, making the liquid supply smooth and stable. In some existing atomizers 1000, liquid-absorbing cotton is usually provided around the microporous atomizing plate 3, and liquid-absorbing cotton is used to supply liquid to the microporous atomizing plate 3.

[0117] The present application provides a comparison reference of the smoke volume stability of the electronic atomization device using the lateral cotton-free liquid supply solution of the present application and the liquid-absorbing cotton liquid supply solution in the prior art (see Table 2 below and the smoke volume stability test comparison chart in Figure 10).

[0118] Specifically, the smoke volume test method of the electronic atomization device is as follows: using distilled water as the atomization medium, the distilled water is atomized using the atomizer 1000 with a liquid absorbent cotton liquid supply scheme and the atomizer 1000 with a side cotton-free liquid supply scheme of the present application respectively. The two atomizers 1000 have the same usage parameters (such as the microporous atomization piece 3 used and the power and frequency used) except for whether there is liquid absorbent cotton liquid supply; using a smoke machine to suck the atomizer 1000, setting 3s / puff (mouth) during atomization, suck for 3s and stop for 8s, the suction capacity is 55ml, and the mass difference of the atomizer 1000 before and after atomization is weighed as the smoke volume. The stability of the mist output of the atomizer 1000 was determined by observing the consistency of the smoke output during continuous puffs. The specific method was to weigh and record the mass change of the two atomizers 1000 after each continuous puff of 20 puffs, that is, to puff continuously for 300 puffs, weigh the mass difference every 20 puffs, and divide it by the number of puffs to obtain the average smoke output, and observe the fluctuation of the average smoke output.

[0119] The test results are shown in Table 2 below, as well as in Figure 10, a comparison chart of the vapor volume stability test based on the data in Table 2. The test results show that the vapor volume of the atomizer 1000 using the absorbent cotton supply solution begins to decline at 20-40 puffs, and then continues to decline until no vapor can be produced. This is because the atomizer 1000's primary operating component is the microporous atomizer disc 3. During atomization, the high-speed vibration of the microporous atomizer disc 3 damages the structure of the absorbent cotton, resulting in a decrease in the cotton material's liquid supply speed in the area in contact with the microporous atomizer disc 3. This in turn leads to insufficient liquid supply to the atomizer 1000, causing dry burning, and ultimately causing the atomizer 1000 to burn out and become unable to produce vapor.

[0120] The electronic atomization device using the side liquid supply structure designed in the present application can achieve the beneficial effect of no attenuation of the average smoke volume within 300 puffs during atomization, and ensure the stable liquid supply of the atomizer 1000 under long-term continuous inhalation.

[0121] It can be understood that the pore size range of the micropores 18 of the microporous atomizer sheet 3 of the present application at the liquid outlet end 1802 is set to 1μm to 4μm, so that in the aerosol generated by the atomization of the microporous atomizer sheet 3, the proportion of aerosol particles with a particle size range of 1um-4um reaches 98%; therefore, the microporous atomizer sheet 3 of the present application is more sophisticated, and a more stable liquid supply structure needs to be set to supply liquid to the microporous atomizer sheet 3, otherwise it is easy to affect the working state of the microporous atomizer sheet 3. The atomizer 1000 of the present application adopts a lateral liquid supply structure, which can stably supply liquid to the microporous atomization sheet 3. The aerosol-generating matrix of the liquid in the liquid storage chamber 5 can automatically flow into the atomization bin 6 along the liquid inlet channel 7 under the action of its own gravity and fill the atomization bin 6, so that the aerosol-generating matrix in the atomization bin 6 can maintain contact with the bottom surface of the microporous atomization sheet 3, and can stably supply liquid to the microporous atomization sheet 3, thereby improving the liquid supply reliability of the atomizer 1000; the atomization bin 6 is formed at the bottom of the microporous atomization sheet 3, that is, the aerosol-generating matrix of the liquid in the atomization bin 6 will not cause excessive pressure on the microporous atomization sheet 3, and will not affect the mist output state of the microporous atomization sheet 3; and, after the aerosol-generating matrix in the atomization bin 6 is partially consumed by the microporous atomization sheet 3, the aerosol-generating matrix in the liquid storage chamber 5 can be promptly replenished to the atomization bin 6; that is, the liquid supply structure of the present application can maximize the atomization effect of the microporous atomization sheet 3.

[0122] Table 2

[0123] Specifically, the electronic atomization device of the present application sets the microporous atomization sheet 3 parallel to the second direction Y, and the microporous atomization sheet 3 sprays the aerosol generated by atomization into the air outlet channel 4. Referring to Figure 2, the microporous atomization sheet 3 sprays the aerosol upward into the air outlet channel 4.

[0124] It can be understood that the mist outlet direction of the microporous atomizing sheet 3 in the atomizer 1000 can be upward atomization, downward atomization, and lateral atomization. The present application further provides a reference table for comparing the amount of smoke of the atomizer 1000 when the microporous atomizing sheet 3 is in different mist outlet directions in FIG. 9 (see Table 3 below).

[0125] The smoke volume test method of the atomizer 1000 is as follows: the atomizer 1000 with different mist outlet directions of the microporous atomizer sheet 3 is set as shown in Figure 9, and the microporous atomizer sheet 3 with the same specification parameters is loaded into the atomizer 1000 with different designed mist outlet directions. The mist outlet directions of the microporous atomizer sheet 3 include upward vertical mist outlet, lateral horizontal mist outlet, and downward vertical mist outlet. The mist outlet direction of the entire atomizer 1000 is upward mist outlet. Except for the different mist outlet directions, the other design parameters of the atomizer 1000 are consistent, such as the height and diameter of the mist outlet airway. Distilled water is used as the atomizing medium during the test, and three atomizers 1000 with different mist outlet directions are used to atomize it. The power, frequency and other parameters used in the test of the three atomizers 1000 are kept consistent. During the test, a four-channel smoke extractor was used for suction. The atomization setting was 3s / puff (mouth), with 3s of suction and 8s of rest. The suction capacity was 55ml. The difference in mass of the entire atomizer 1000 before and after atomization was weighed as the smoke volume. Three sets of smoke volume data were tested for the atomizer 1000 in each mist output direction, and the average was taken as its average smoke volume.

[0126] The test results of the average smoke volume of the microporous atomizer 3 in different mist outlet directions are shown in the following table. The results show that the average smoke volume of the atomizer 1000 using the upward atomization scheme of the microporous atomizer 3 is better than that of the other two methods, and the condensation and adsorption of aerosols on the wall of the mist outlet duct are avoided to the greatest extent.

[0127] Therefore, the upward mist discharge method of the microporous atomizing sheet 3 adopted in the present application can effectively increase the atomization amount of the electronic atomizing device and improve the atomization efficiency.

[0128] Table 3

[0129] The above are merely optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. An electronic atomization device for atomizing an aerosol-generating substrate to generate an aerosol, characterized in that: include: a housing assembly, wherein the housing assembly is formed with an air outlet passage extending along a first direction; A microporous atomizing sheet is provided in the housing assembly; At least a central portion of the microporous atomizing sheet is exposed in the air outlet passage. The microporous atomizing sheet is used to atomize the aerosol-generating substrate to generate an aerosol, and spray the aerosol into the air outlet passage along the first direction. Furthermore, more than 98% of the aerosol generated by the microporous atomizing sheet has particles with a diameter ranging from 1 to 4 μm. A nozzle portion, wherein the housing assembly is provided with a nozzle portion in communication with the air outlet channel at one end thereof away from the microporous atomizing sheet along the first direction; The suction start component is used to sense the change of the airflow in the housing component to start the microporous atomizing sheet.

2. The electronic atomization device according to claim 1, characterized in that The microporous atomizing sheet includes a stacked substrate and a piezoelectric ceramic ring; a microporous area is provided at the center of the substrate, and the microporous area is provided with more than one micropore; and the central axis of the air outlet channel passes through the microporous area.

3. The electronic atomization device according to claim 2, characterized in that: The cross section of the micropore in the first direction is conical, the end of the micropore close to the suction nozzle along the first direction is the liquid outlet end, the end of the micropore away from the suction nozzle along the first direction is the liquid inlet end, and the aperture of the micropore at the liquid inlet end is larger than the aperture of the micropore at the liquid outlet end; wherein, The pore size of the micropore at the liquid outlet end ranges from 1 μm to 4 μm.

4. The electronic atomization device according to claim 3, characterized in that The pore size of the micropore at the liquid inlet end ranges from 20 μm to 100 μm.

5. The electronic atomization device according to any one of claims 1 to 4, characterized in that: The electronic atomization device further includes a power supply component, which responds to the induction signal of the puff start component to supply power to the microporous atomization sheet.

6. An electronic atomization device, characterized in that: include: An atomizer housing is formed with a mouthpiece and an air outlet passage extending along a first direction; the atomizer housing further comprises a liquid storage chamber for storing an aerosol-generating substrate, wherein the liquid storage chamber is spaced from the air outlet passage along a second direction, the second direction being perpendicular to the first direction; A base is provided in the atomizer housing and is used to isolate the air outlet channel from the liquid storage chamber; an atomization chamber and a liquid inlet channel communicating between the atomization chamber and the liquid storage chamber are formed in the base; A microporous atomizing sheet is installed in the base, and at least the center portion of the end surface of the microporous atomizing sheet facing away from the suction nozzle is exposed in the atomizing chamber.

7. The electronic atomization device according to claim 6, characterized in that: The atomizer housing includes an atomizing shell and a liquid storage shell arranged side by side along the second direction, the atomizing shell is formed with the air outlet channel and the suction nozzle, and the liquid storage cavity is formed in the liquid storage shell; the base is connected between the atomizing shell and the liquid storage shell.

8. The electronic atomization device according to claim 7, characterized in that: The liquid storage shell includes a main shell having the liquid storage cavity and a mounting seat provided at the bottom end of the main shell and extending outward, the base is provided on the mounting seat and connected to the main shell so that the liquid inlet channel is connected to the liquid storage cavity; the bottom end of the atomizing shell is installed on the mounting seat, and the atomizing shell further includes a receiving groove for accommodating the base, and the receiving groove is connected to the air outlet channel.

9. The electronic atomization device according to claim 8, characterized in that: The base includes a base and a top seat, and the microporous atomization sheet is clamped between the base and the top seat; the atomization bin and the liquid inlet channel are provided in the base, and the base is provided on the mounting seat and connected to the main shell so that the liquid inlet channel is connected to the liquid storage chamber; the atomization shell and the top seat are limitedly cooperated to limit the top seat from separating from the base along the first direction.

10. The electronic atomization device according to claim 9, characterized in that: The top seat includes a top seat body whose bottom end abuts against the top surface of the microporous atomizing sheet and a limiting plate extending outward from the outer wall of the top seat body in a circumferential direction; a connecting hole is formed in the top seat body to connect the microporous atomizing sheet with the air outlet channel; the limiting plate abuts against the top wall of the accommodating groove to limit the top seat body from separating from the base along the first direction.

11. The electronic atomization device according to any one of claims 9 to 10, characterized in that: A wall platform for supporting the microporous atomizing sheet is formed on the top of the base, and an atomizing port is formed at the center of the wall platform of the atomizing chamber; and a plurality of annular protrusions spaced circumferentially are provided on the wall platform.

12. The electronic atomization device according to claim 11, characterized in that: The base is made of a flexible material, and the microporous atomizing sheet is configured to be pressed against the annular protrusion and to place the annular protrusion in a compressed state in the first direction.

13. The electronic atomization device according to any one of claims 7 to 12, characterized in that: The liquid storage shell has a ventilation valve structure that allows the liquid storage cavity to communicate with external air.

14. The electronic atomization device according to any one of claims 6 to 13, characterized in that: The cross-sectional area of ​​the liquid inlet channel is 8mm 2 -24mm 2 .

15. The electronic atomization device according to any one of claims 6 to 14, characterized in that: The bottom wall of the liquid storage cavity is inclined in the direction of the liquid storage cavity toward the atomization chamber, and the end of the bottom wall of the liquid storage cavity away from the liquid inlet channel is higher than the end of the bottom wall of the liquid storage cavity close to the liquid inlet channel.

16. The electronic atomization device according to claims 7 to 15, characterized in that: An air inlet channel is also provided in the liquid storage shell; the air inlet channel sequentially includes a first air inlet channel extending from the bottom end of the liquid storage shell along the first direction and a second air inlet channel extending along the second direction, and the second air inlet channel is connected to the air outlet channel; the first air inlet channel is not connected to the liquid inlet channel, and the second air inlet channel is provided on the side of the microporous atomization plate that is biased towards the air outlet channel.

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