Atomization device

Abstract

The utility model provides an atomization device, and relates to the technical field of electronic atomization. The atomization device comprises a shell, a liquid storage bin, an atomization assembly and an airflow sensor. A suction nozzle is arranged at one end of the shell. The liquid storage bin is used for storing an aerosol generating substrate. The atomization assembly is used to heat the aerosol-generating substrate. The airflow sensor comprises a sensing assembly and a shell assembly. The sensing assembly comprises a sensing side and a normal-pressure side, the sensing side is constructed to deform or displace in response to space air pressure changes, and the normal-pressure side is arranged on the side opposite to the sensing side. The shell assembly comprises a first protective layer at least partially covering the sensing side, a first through hole is formed in the first protective layer, the diameter of the first through hole is L1, and L1 is smaller than or equal to 0.1 mm. According to the atomization device, on the premise that the airflow sensor works normally, the induction assembly can be prevented from being damaged due to the influence of liquid drops, the stability and reliability of the atomization device are improved, and the service life of the atomization device is greatly prolonged.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an atomization device. Background Art

[0002] An atomizer is a device that can atomize an aerosol matrix into an aerosol for the user to use. It has been widely used in the healthcare, medical, and beauty industries.

[0003] In the related art, an airflow sensor is usually provided in the atomizing device to control the start or stop of the atomizing device. However, when the atomizing device is in use, the airflow sensor is very likely to come into contact with the aerosol generating matrix, causing damage to the airflow sensor. Utility Model Content

[0004] In view of this, the present application provides an atomization device, which aims to solve the technical problem in the related art that the airflow sensor is easily damaged due to contact with the aerosol generating matrix.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] An embodiment of the present application provides an atomization device, comprising a housing, a liquid storage tank, an atomization assembly, and an airflow sensor. A suction nozzle is provided at one end of the housing, and at least one gas channel connected to the suction nozzle is formed in the housing. The liquid storage tank is positioned in the housing, and the liquid storage tank is used to store an aerosol-generating matrix. The atomization assembly is used to heat the aerosol-generating matrix, and the atomization assembly is in airflow communication with the gas channel, and the atomization assembly is in liquid communication with the liquid storage tank. The airflow sensor outputs an electrical signal in response to a change in spatial air pressure, and the change in spatial air pressure can at least be caused by the user's puffing action. The airflow sensor comprises a sensing assembly and a shell assembly. The sensing assembly comprises a sensing side and a normal pressure side, and the sensing side is constructed to deform or displace in response to a change in spatial air pressure, and the normal pressure side is arranged on the side opposite to the sensing side. The shell assembly comprises a first protective layer that at least partially covers the sensing side, and a first through hole is provided on the first protective layer. The diameter of the first through hole is L1, and L1≤0.1mm is satisfied.

[0007] Furthermore, the housing assembly further includes a second protective layer, which is arranged on a side of the first protective layer close to the sensing side. A second through hole is formed on the second protective layer, and the second through hole is connected to the first through hole.

[0008] Furthermore, any one of the first through holes has at least one associated second through hole, the first through hole and the associated second through hole are connected to each other, and the projections of the first through hole and the associated second through hole on the first protective layer do not completely overlap.

[0009] Furthermore, the diameter of the second through hole is L2, which satisfies: L2≤0.1 mm.

[0010] Furthermore, a plurality of the first through holes are distributed at equal intervals on the first protective layer, a plurality of the second through holes are distributed at equal intervals on the second protective layer, and the first through holes and the second through holes are arranged in a one-to-one correspondence.

[0011] Furthermore, the first through hole passes through the first protective layer, the length of the first through hole is L3, and the following conditions are met: L3≤0.1mm. The second through hole passes through the second protective layer, the length of the second through hole is L4, and the following conditions are met: L4≤0.1mm.

[0012] Furthermore, a cavity is opened on the shell component, the first protective layer and the second protective layer are both arranged on one side of the cavity, and the sensing component is installed in the cavity.

[0013] Furthermore, the first protective layer and the second protective layer are both arranged toward the atomizing assembly, and the sensing assembly is arranged on a side of the housing assembly away from the atomizing assembly.

[0014] Furthermore, an atomizing channel is defined within the atomizing assembly, the atomizing channel being in fluid communication with the liquid reservoir and in gaseous communication with the gas channel. The atomizing assembly includes an atomizing core disposed within the atomizing channel for heating and atomizing an aerosol-generating substrate flowing into the atomizing channel.

[0015] Furthermore, an air inlet hole connected to the gas channel is provided on one end of the shell away from the suction nozzle, and at least two air inlet holes are provided; the normal pressure side of the sensing component is kept in communication with the outside world through the air inlet hole.

[0016] In one embodiment, the beneficial effects of the present application are:

[0017] The atomizing device provided by the present application, when in use, the user draws suction from the suction nozzle on the shell, causing the air pressure inside the shell to change, and the sensing side of the airflow sensor to deform or displace relative to the normal pressure side, causing the airflow sensor to send a signal to control the atomizing assembly to start. When the aerosol generating matrix in the liquid storage tank flows into the atomizing assembly, the atomizing assembly heats and atomizes the aerosol generating matrix to form an aerosol, and the aerosol flows along the gas channel to the suction nozzle for the user to inhale. Among them, when the atomizing assembly is performing the heating and atomizing operation, there may be residual aerosol generating matrix forming droplets, which drip toward the direction of the airflow sensor. The shell assembly is arranged between the sensing assembly and the atomizing assembly, and the dripping droplets will fall onto the shell assembly, and the first through hole opened on the first protective layer has a diameter of less than or equal to 0.1 mm, ensuring that only gas can pass through the first through hole, while liquid cannot pass through, that is, the droplets cannot pass through the first protective layer and contact the sensing assembly, thereby protecting the sensing assembly.

[0018] The atomizing device provided by the present application has a first through hole that can ensure that the sensing component can normally exchange gas with the outside world or the gas channel, sense the air pressure, and promptly send a signal to the atomizing component. At the same time, the first protective layer can also prevent the sensing component from being damaged by droplets, thereby improving the stability and reliability of the present application and greatly extending the service life of the atomizing device of the present application.

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic structural diagram of atomization devices from a first perspective in some embodiments of the present application is shown;

[0022] Figure 2 A schematic structural diagram of a second viewing angle of an atomizing device in some embodiments of the present application is shown;

[0023] Figure 3 Shows the atomization device in some embodiments of the present application Figure 2 A partial enlarged view of point A in the middle;

[0024] Figure 4 A schematic structural diagram of an airflow sensor from a first perspective in some embodiments of the present application is shown.

[0025] Description of main component symbols:

[0026] 100-airflow sensor; 110-housing assembly; 111-first protective layer; 112-first through hole; 113-second protective layer; 114-second through hole; 120-sensing assembly; 121-sensing side; 122-normal pressure side; 130-cavity; 200-housing; 210-gas channel; 220-atomization channel; 230-atomization assembly; 240-nozzle; 270-air inlet; 300-liquid storage tank. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present application. Examples of the embodiments 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 only used to explain the present application and are not to be construed as limiting the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present 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 should not be understood as a limitation on the present application.

[0029] 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.

[0030] 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.

[0031] The present application provides an atomizing device to solve the problem in the related art that the airflow sensor of the atomizing device is very likely to come into contact with the aerosol generating matrix, resulting in damage to the airflow sensor.

[0032] See also Figure 1 、 Figure 2 and Figure 4 An embodiment of the present application provides an atomization device, comprising a housing 200, a liquid storage tank 300, an atomization assembly 230, and an airflow sensor 100. A suction nozzle 240 is provided at one end of the housing 200. The suction nozzle 240 may be integrally formed with the housing 200 or separately mounted on the housing 200. At least one air passage 210 is formed within the housing 200, communicating with the suction nozzle 240. A user generates airflow and air pressure changes within the housing 200 by suctioning through the suction nozzle.

[0033] refer to Figure 2 The liquid storage tank 300 is positioned within the housing 200 and is used to store the aerosol-generating substrate. The liquid storage tank 300 can be a separate cavity mounted within the housing 200. Alternatively, the housing 200 can be used as a portion of the liquid storage tank 300, for example, with the inner wall of the housing 200 serving as the outer wall of the liquid storage tank 300, and sealing members provided at the upper and lower portions of the housing 200 to form a cavity for storing liquid.

[0034] refer to Figure 2 The atomizing assembly 230 is used to heat the aerosol-generating matrix. The atomizing assembly 230 is in airflow communication with the gas channel 210, so that the generated aerosol can be carried by the airflow to the mouthpiece and delivered to the user. The atomizing assembly 230 is in liquid communication with the liquid storage tank 300. When the atomizing matrix temporarily stored on the atomizing assembly 230 is exhausted, the atomizing matrix in the liquid storage tank 300 can be replenished immediately.

[0035] refer to Figure 3 and Figure 4 The airflow sensor 100 outputs an electrical signal in response to changes in spatial air pressure, which can be caused at least by a user's puffing action. The airflow sensor 100 includes a sensing component 120 and a housing component 110. The sensing component 120 includes a sensing side 121 and a normal pressure side 122. The sensing side 121 is configured to deform or displace in response to changes in spatial air pressure. The normal pressure side 122 is disposed on a side opposite the sensing side 121. The housing component 110 includes a first protective layer 111 that at least partially covers the sensing side 121. The first protective layer 111 defines a first through hole 112. The diameter of the first through hole 112 is L1, satisfying L1 ≤ 0.1 mm.

[0036] Specifically, when using the atomizing device of this embodiment, the user performs a suction action from the suction nozzle 240 on the housing 200, causing the air pressure inside the housing 200 to change. The sensing side 121 of the airflow sensor 100 corresponds to the diaphragm in the parallel substrate capacitor, and the normal pressure side 122 corresponds to the back plate of the parallel plate capacitor. After sensing the change in air pressure, the sensing side 121 deforms or displaces relative to the normal pressure side 122, that is, the electric field in the parallel plate capacitor changes, causing the airflow sensor 100 to send an electrical signal. After receiving the electrical signal, the controller in the atomizing device controls the atomizing assembly 230 to start. When the aerosol generating matrix in the liquid storage tank 300 flows into the atomizing assembly 230, the atomizing assembly 230 heats and atomizes the aerosol generating matrix to form an aerosol, and the aerosol flows along the gas channel 210 to the suction nozzle 240 for the user to inhale. When the atomizing assembly 230 performs an atomizing operation, the un-atomized aerosol-generating matrix is ​​easily aggregated into small droplets and drips toward the airflow sensor 100 .

[0037] Because the housing assembly 110 is disposed between the atomizer assembly 230 and the sensing assembly 120, dripping droplets will directly land on the first protective layer 111 of the housing assembly 110. However, the first through-hole 112 defined in the first protective layer 111 has a diameter of 0.1 mm or less. The aerosol-generating matrix, affected by factors such as viscosity and liquid surface tension, cannot pass through the first through-hole 112. In other words, the sensing assembly 120 can normally exchange gas within the gas passage 210 through the first through-hole 112, while the aerosol-generating matrix cannot pass through the first through-hole 112. Consequently, the aerosol-generating matrix does not come into contact with the sensing assembly 120, and the airflow sensor 100 is protected from damage caused by the aerosol-generating matrix, thereby improving the stability of this embodiment.

[0038] In one embodiment, the first protective layer 111 protects the sensing component 120, preventing contact between the aerosol-generating substrate and the sensing component 120, thereby preventing damage to the airflow sensor 100. Furthermore, the first through-hole 112 enables the sensing component 120 to promptly detect changes in air pressure within the gas channel 210 and promptly send a signal to the atomizing component 230 to control its start or stop, thereby preventing the airflow sensor 100 from being corroded by condensation droplets and causing malfunctions.

[0039] refer to Figure 4 In one embodiment, the first through holes 112 are configured as a closely arranged through hole array. Taking the opening of five first through holes 112 as an example, the total opening area is equivalent to 1.5-2 times the opening area of ​​the sensing side of a traditional airflow sensor, so that the airflow sensor 100 of this embodiment can sensitively respond to airflow changes.

[0040] In one embodiment, the porous array is arranged in a circular shape (not shown), a triangular shape (not shown), a quadrilateral (not shown), or a cross shape (not shown). The above relatively uniformly constructed through-hole array can enable the sensing side to respond more accurately to changes in air pressure and undergo corresponding deformation.

[0041] In one embodiment, Figure 3 、 Figure 4 As shown, the shell assembly 110 also includes a second protective layer 113, which is arranged on a side of the first protective layer 111 close to the sensing side 121. A second through hole 114 is provided on the second protective layer 113, and the second through hole 114 is connected to the first through hole 112. The second protective layer 113 is provided on the shell to cooperate with the first protective layer 111 to further ensure that the aerosol generating matrix dripping onto the shell assembly 110 will not penetrate into the sensing assembly 120. Specifically, the aerosol generating matrix dripping onto the first protective layer 111 cannot pass through the first through hole 112 due to the small diameter of the first through hole 112. Even if a small amount of aerosol generating matrix passes through the first through hole 112 due to various other factors, it will be blocked by the second protective layer 113 to prevent the aerosol generating matrix from continuing to flow and contacting the sensing assembly 120, causing contamination or damage to the sensing assembly 120. The cooperation between the first protective layer 111 and the second protective layer 113 further improves the protection capability of the housing assembly 110 of this embodiment, thereby improving the reliability of this embodiment.

[0042] In one embodiment, for example, Figure 3 、 Figure 4 As shown, any first through hole 112 has at least one associated second through hole 114. The first through hole 112 and the associated second through hole 114 are interconnected, and their projections on the first protective layer 111 do not completely overlap. In other words, each first through hole 112 on the first protective layer 111 is associated with at least one second through hole 114 on the second protective layer 113, and the projections of the first through holes 112 and the second through holes 114 on the first protective layer 111 do not overlap, meaning the first through holes 112 and the second through holes 114 are staggered. This ensures that when aerosol-generating substrate drips onto the first protective layer 111, it is blocked by the first through holes 112. Even if some of the aerosol-generating substrate is affected by other factors and passes through the first through holes 112, it will not flow directly to the second through holes 114, thereby improving the protective capabilities of the first and second through holes 112, 114, against the sensing component 120. Furthermore, providing the second through hole 114 in communication with the first through hole 112 also prolongs the flow path required for the aerosol generating substrate to contact the sensing component 120 , further avoiding the risk of contact between the aerosol generating substrate and the sensing component 120 .

[0043] In one embodiment, for example, Figure 3 、 Figure 4 As shown, the diameter of the second through hole 114 is L2, which satisfies: L2 ≤ 0.1 mm. The diameter of the second through hole 114 is less than or equal to 0.1 mm. In this way, the aerosol generating matrix will also be affected by factors such as viscosity and liquid surface tension and cannot pass through the second through hole 114. In addition, in this embodiment, the diameter of the first through hole 112 is set to 0.1 mm, which initially blocks the aerosol generating matrix. The first through hole 112 and the second through hole 114 are staggered to block the aerosol generating matrix again. The diameter of the second through hole 114 is also set to 0.1 mm, which can also block the aerosol generating matrix, thereby ensuring that the aerosol generating matrix will not pass through the housing assembly 110 and contact the sensing assembly 120, thereby protecting the sensing assembly 120, that is, protecting the airflow sensor 100, and extending the service life of the atomization device of this embodiment.

[0044] In one embodiment, for example, please refer to Figure 3 、 Figure 4 , multiple first through holes 112 are evenly spaced on the first protective layer 111. Multiple second through holes 114 are evenly spaced on the second protective layer 113, and the first through holes 112 and the second through holes 114 are arranged in a one-to-one correspondence. The multiple first through holes 112 are provided on the first protective layer 111, and the multiple second through holes 114 are provided on the second protective layer 113. This ensures that the sensing component 120 has normal ventilation and smooth flow within the gas channel 210, and prevents dripping aerosol-generating substrate from blocking one or more first through holes 112, thereby affecting the air pressure within the gas channel 210 sensed by the sensing component 120, further improving the structural rationality and reliability of this embodiment.

[0045] In one embodiment, for example, Figure 3 、 Figure 4 As shown, the first through hole 112 passes through the first protective layer 111, and the length of the first through hole 112 is L3, which satisfies: L3 ≤ 0.1 mm. The second through hole 114 passes through the second protective layer 113, and the length of the second through hole 114 is L4, which satisfies: L4 ≤ 0.1 mm. The lengths of the first through hole 112 and the second through hole 114 are both set to 0.1 mm. Under the premise of ensuring that the aerosol generating matrix does not pass through the shell assembly 110 through the first through hole 112 and the second through hole 114, the thickness of the first protective layer 111 and the second protective layer 113 of this embodiment can be shortened, so that the overall structure of the shell assembly 110 remains compact, thereby making the structure within the atomizing device more reasonable, and leaving space for other components in the atomizing device, making this embodiment easy to assemble.

[0046] In the related art, the hole on the airflow sensor 100 used to sense air pressure is usually large. In order to prevent the airflow sensor 100 from being contaminated or damaged by the aerosol-generating matrix, the hole is usually extended and made multiple turns, resulting in the airflow sensor 100 occupying more space. In this embodiment, the length of the first through hole 112 and the second through hole 114 are both set to 0.1 mm. Under the premise of the small and compact structure of the housing assembly 110, the protection of the sensing assembly 120 is achieved, making the overall structure of this embodiment smaller and easier for the user to carry or hold. In addition, the short length of the first through hole 112 and the second through hole 114 can also make the reaction speed of the sensing assembly 120 faster and the sensing results more accurate, further improving the user experience of this embodiment.

[0047] In one embodiment, for example, Figure 3 、 Figure 4 As shown, a cavity 130 is defined in the housing assembly 110, and a first protective layer 111 and a second protective layer 113 are both disposed on one side of the cavity 130. The sensing assembly 120 is installed within the cavity 130. The cavity 130 is defined in the housing assembly 110 to protect the sensing assembly 120. On the one hand, the cavity 130 allows the sensing assembly 120 to be positioned during installation, thereby reducing assembly difficulty. On the other hand, the cavity 130 also provides all-around protection for the sensing assembly 120. Specifically, while ensuring that the aerosol-generating matrix does not pass through the housing assembly 110 and contaminate or damage the sensing assembly 120, the remaining portions of the sensing assembly 120 are circumferentially protected, thereby preventing the sensing assembly 120 from being damaged by other external factors, thereby improving the reliability of this embodiment.

[0048] In one embodiment, for example, Figure 3 、 Figure 4 As shown, the first protective layer 111 and the second protective layer 113 are both arranged toward the atomizer assembly 230, and the sensing assembly 120 is arranged on the side of the housing assembly 110 away from the atomizer assembly 230. The first protective layer 111 and the second protective layer 113 are arranged toward the atomizer assembly 230, that is, the first through hole 112 and the second through hole 114 are both arranged in the direction from the atomizer assembly 230 to the sensing assembly 120, ensuring that when the user performs the inhalation action, the gas can smoothly pass through the first through hole 112 and the second through hole 114, thereby ensuring the sensitivity of the sensing assembly 120 to changes in air pressure. In addition, it also ensures that if there is dripping aerosol generating matrix, the aerosol generating matrix can only pass through the first through hole 112 and the second through hole 114 to contact the sensing assembly 120, ensuring the protection capability of the housing assembly 110 for the sensing assembly 120.

[0049] It should be noted that the shell assembly 110 and the sensing assembly 120 can also be arranged according to the actual situation in the housing 200, as long as the shell assembly 110 can protect the sensing assembly 120 to prevent the sensing assembly 120 from contacting the aerosol generating matrix.

[0050] In one embodiment, for example, Figure 2 As shown, an atomization channel 220 is provided in the atomization assembly 230, and the atomization channel 220 is in liquid communication with the liquid storage tank 300, and the atomization channel 220 is in airflow communication with the gas channel 210. The atomization assembly 230 includes an atomization core, which is arranged in the atomization channel 220 to heat and atomize the aerosol-generating matrix flowing into the atomization channel 220. In the housing 200, the atomization channel 220 is separated from the gas channel 210 to extend the distance between the atomization assembly 230 and the airflow sensor 100, thereby preventing the aerosol-generating matrix that is not completely atomized near the atomization assembly 230 from falling directly onto the airflow sensor 100 when dripping, thereby reducing the protection burden of the housing assembly 110 and improving the protection capability of this embodiment.

[0051] In one embodiment, for example, Figure 2 、 Figure 3 As shown, an air inlet 270 connected to the gas channel 210 is provided on the end of the housing 200 away from the suction nozzle 240, and at least two air inlet holes 270 are provided; the normal pressure side 122 of the sensing component 120 is connected to the outside world through the air inlet 270. The provision of multiple air inlet holes 270 at one end of the housing 200 enables the normal pressure side 122 to maintain real-time communication with the outside world, so that when changes occur on the sensing side 121, the air flow sensor 100 can promptly and sensitively send a signal. In addition, the provision of multiple air inlet holes 270 also enables a sufficient amount of air to pass through the air inlet holes 270 when the user is inhaling, so that the air supply to the suction nozzle 240 is unobstructed, thereby improving the user experience of this embodiment.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means 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 features of different embodiments or examples without contradiction.

[0053] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An atomizing device, characterized in that: include: A housing (200), a suction nozzle (240) being provided at one end of the housing (200), and at least one gas passage (210) communicating with the suction nozzle (240) being formed in the housing (200); a liquid storage tank (300), positioned within the housing (200), the liquid storage tank (300) being used to store an aerosol-generating matrix; an atomizing assembly (230) for heating an aerosol-generating matrix, wherein the atomizing assembly (230) is in airflow communication with the gas channel (210), and the atomizing assembly (230) is in liquid communication with the liquid storage tank (300); An airflow sensor (100) outputs an electrical signal in response to a change in air pressure in a space, wherein the change in air pressure in the space can be caused at least by a user's puffing action, and the airflow sensor (100) comprises a sensing component (120) and a housing component (110); The sensing component (120) includes a sensing side (121) and a normal pressure side (122), wherein the sensing side (121) is configured to deform or displace in response to changes in air pressure in a space, and the normal pressure side (122) is disposed on a side opposite to the sensing side (121); The housing assembly (110) comprises a first protective layer (111) at least partially covering the sensing side, a first through hole (112) is provided on the first protective layer (111), and a diameter of the first through hole (112) is L1, satisfying L1≤0.1 mm.

2. The atomizing device according to claim 1, characterized in that The housing assembly (110) further comprises a second protective layer, which is arranged on a side of the first protective layer close to the sensing side. A second through hole (114) is provided on the second protective layer (113), and the second through hole (114) is in airflow communication with the first through hole (112).

3. The atomizing device according to claim 2, characterized in that Any one of the first through holes (112) has at least one associated second through hole (114), the first through hole (112) and the associated second through hole (114) are connected to each other, and the projections of the first through hole (112) and the associated second through hole (114) on the first protective layer (111) do not completely overlap.

4. The atomizing device according to claim 2 or 3, characterized in that: The diameter of the second through hole (114) is L2, which satisfies: L2≤0.1 mm.

5. The atomizing device according to claim 2, characterized in that A plurality of adjacent first through holes (112) are distributed at equal intervals on the first protective layer (111); A plurality of adjacent second through holes (114) are distributed at equal intervals on the second protective layer (113), and the first through holes (112) and the second through holes (114) are arranged in a one-to-one correspondence.

6. The atomizing device according to claim 2, characterized in that: The first through hole (112) passes through the first protective layer (111), and the length of the first through hole (112) is L3, which satisfies: L3≤0.1mm; The second through hole (114) passes through the second protective layer (113), and the length of the second through hole (114) is L4, which satisfies: L4≤0.1mm.

7. The atomizing device according to claim 2, characterized in that A cavity (130) is provided on the housing component (110), the first protective layer (111) and the second protective layer (113) are both arranged on one side of the cavity (130), and the sensing component (120) is installed in the cavity (130).

8. The atomizing device according to claim 7, characterized in that The first protective layer (111) and the second protective layer (113) are both arranged toward the atomizing assembly (230), and the sensing assembly (120) is arranged on a side of the housing assembly (110) away from the atomizing assembly (230).

9. The atomizing device according to claim 1, characterized in that An atomizing channel (220) is provided in the atomizing assembly (230), the atomizing channel (220) is in liquid communication with the liquid storage tank (300), and the atomizing channel (220) is in airflow communication with the gas channel (210); The atomizing assembly (230) includes an atomizing core, which is disposed in the atomizing channel (220) and is used to heat and atomize an aerosol-generating matrix flowing into the atomizing channel (220).

10. The atomizing device according to claim 1, characterized in that An air inlet (270) communicating with the gas channel (210) is provided on one end of the housing (200) away from the suction nozzle (240), and at least two air inlet holes (270) are provided; the normal pressure side (122) of the sensing component (120) is kept in communication with the outside world through the air inlet hole (270).

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