Atomization device

Abstract

The present application relates to the technical field of electronic atomization. Provided is an atomization device. The atomization device comprises a housing, a liquid storage chamber, an atomization assembly and an airflow sensor. A mouthpiece is provided at one end of the housing. The liquid storage chamber is configured to store an aerosol-generating substrate. The atomization assembly is configured 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 an atmospheric side, wherein the sensing side is configured to deform or displace in response to a spatial air pressure change, and the atmospheric side is arranged on the opposite side of the sensing side. The shell assembly comprises a first protective layer at least partially covering the sensing side, the first protective layer is provided with a first through hole, and the diameter of the first through hole is L1, which satisfies L1≤0.1 mm.

Description

atomizing device

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202422667720.5, entitled "Atomizing Device," filed on November 1, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of atomization technology, and more particularly to atomization devices. Background Technology

[0004] Atomizing devices are devices that can atomize an aerosol matrix into aerosols for users. They are widely used in industries such as medicine and beauty.

[0005] In related technologies, airflow sensors are usually installed in atomizing devices 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, which can cause damage to the airflow sensor.

[0006] Application content

[0007] In view of this, this application provides an atomizing device, which aims to solve the technical problem in the related art that the airflow sensor is easily damaged by contact with the aerosol generating matrix.

[0008] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0009] This application provides an atomizing device, including a housing, a liquid storage chamber, an atomizing component, and an airflow sensor. A mouthpiece is disposed at one end of the housing, and at least one gas channel communicating with the mouthpiece is formed within the housing. The liquid storage chamber is positioned within the housing and is used to store an aerosol generation matrix. The atomizing component is used to heat the aerosol generation matrix, and the atomizing component is in airflow communication with the gas channel and the liquid storage chamber is in liquid guiding communication. The airflow sensor outputs an electrical signal in response to changes in spatial air pressure, which can be caused at least by a user's inhalation action. The airflow sensor includes a sensing component and a housing assembly. The sensing component includes a sensing side and an atmospheric pressure side. The sensing side is configured to deform or displace in response to changes in spatial air pressure, and the atmospheric pressure side is disposed on the side opposite to the sensing side. The housing assembly includes a first protective layer that at least partially covers the sensing side. A first through-hole is formed in the first protective layer, and the diameter of the first through-hole is L1, satisfying L1 ≤ 0.1 mm.

[0010] Furthermore, the housing assembly also includes a second protective layer, which is disposed on the side of the first protective layer near the sensing side. The second protective layer has a second through hole, which communicates with the first through hole.

[0011] Furthermore, each of the first through holes has at least one associated second through hole, the first through hole and the associated second through hole are interconnected, and the projections of the first through hole and the associated second through hole on the first protective layer do not completely overlap.

[0012] Furthermore, the diameter of the second through hole is L2, which satisfies: L2≤0.1mm.

[0013] Furthermore, multiple first through holes are evenly distributed on the first protective layer. Multiple second through holes are formed on the second protective layer, and the first through holes and the second through holes are correspondingly arranged.

[0014] Furthermore, the first through hole penetrates the first protective layer, and the length of the first through hole is L3, satisfying: L3≤0.1mm. The second through hole penetrates the second protective layer, and the length of the second through hole is L4, satisfying: L4≤0.1mm.

[0015] Furthermore, the housing assembly has a cavity, and both the first protective layer and the second protective layer are disposed on one side of the cavity, with the sensing component installed inside the cavity.

[0016] Furthermore, both the first protective layer and the second protective layer are disposed towards the atomizing component, and the sensing component is disposed on the side of the housing assembly away from the atomizing component.

[0017] Furthermore, the atomizing component has an atomizing channel that communicates with the liquid storage chamber and with the gas channel. The atomizing component includes an atomizing core disposed within the atomizing channel for heating and atomizing the aerosol flowing into the atomizing channel to generate a matrix.

[0018] Furthermore, an air inlet is provided on the end of the outer shell away from the nozzle, which communicates with the gas channel, and at least two air inlets are provided; the atmospheric pressure side of the sensing component is kept in communication with the outside through the air inlets.

[0019] In one embodiment, the beneficial effects of this application are:

[0020] The atomizing device provided in this application, when in use, involves the user drawing air from the nozzle on the outer casing, causing a change in air pressure inside the casing. This causes deformation or displacement of the sensing side of the airflow sensor relative to the atmospheric pressure side, triggering a signal from the airflow sensor to control the atomizing component to start. When the aerosol generating matrix in the storage chamber flows into the atomizing component, the atomizing component heats and atomizes the aerosol generating matrix to form an aerosol. The aerosol flows along the gas channel to the nozzle for the user to inhale. During the heating and atomization process, residual aerosol generating matrix may form droplets that drip towards the airflow sensor. The housing component is positioned between the sensing component and the atomizing component. The dripping droplets fall onto the housing component. The first through-hole in the first protective layer has a diameter of 0.1 mm or less, ensuring that only gas can pass through the first through-hole, while liquid cannot. This prevents droplets from penetrating the first protective layer and contacting the sensing component, thus protecting the sensing component.

[0021] The atomizing device provided in this application has a first through hole that ensures that the sensing component can exchange gas normally with the outside world or gas channel, sense air pressure, and send signals to the atomizing component in a timely manner. 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 this application and greatly extending the service life of the atomizing device. Attached Figure Description

[0022] Figure 1 shows a first-view structural schematic diagram of the atomizing device in some embodiments of this application;

[0023] Figure 2 shows a structural schematic diagram of the atomizing device from a second perspective in some embodiments of this application;

[0024] Figure 3 shows a partial enlarged view of point A in Figure 2 of the atomizing device in some embodiments of this application;

[0025] Figure 4 shows a first-view structural schematic diagram of an airflow sensor in some embodiments of this application.

[0026] Key component symbols: 100-Airflow sensor; 110-Housing assembly; 111-First protective layer; 112-First through hole; 113-Second protective layer; 114-Second through hole; 120-Sensing component; 121-Sensing side; 122-Atmospheric pressure side; 130-Cavity; 200-Outer shell; 210-Gas channel; 220-Atomization channel; 230-Atomization component; 240-Nose; 270-Air inlet; 300-Liquid reservoir. Detailed Implementation

[0027] This application provides an atomizing device to solve the problem in related technologies where the airflow sensor of the atomizing device is easily damaged by contact with the aerosol generating matrix.

[0028] Referring to Figures 1, 2, and 4, embodiments of this application provide an atomizing device, including a housing 200, a liquid storage chamber 300, an atomizing component 230, and an airflow sensor 100. A nozzle 240 is provided at one end of the housing 200. The nozzle 240 can be integrally formed with the housing 200 or separately mounted on the housing 200. At least one gas channel 210 communicating with the nozzle 240 is formed within the housing 200. The user inhales through the nozzle 240, causing airflow and pressure changes within the housing 200.

[0029] Referring to Figure 2, the liquid storage chamber 300 is positioned within the outer casing 200 and is used to store the aerosol generation matrix. The liquid storage chamber 300 can be an independent cavity installed within the outer casing 200. Alternatively, it can be configured such that the outer casing 200 is part of the liquid storage chamber 300, for example, the inner wall of the outer casing 200 serves as the outer wall of the liquid storage chamber 300, with seals provided at the upper and lower parts of the outer casing 200 to form a cavity suitable for liquid storage.

[0030] Referring to Figure 2, the atomizing component 230 is used to heat the aerosol generation matrix. The atomizing component 230 is connected to the gas channel 210 so that the generated aerosol can be carried by the airflow to the nozzle 240, i.e., delivered to the user. The atomizing component 230 is also connected to the liquid storage tank 300 so that when the atomizing matrix temporarily stored on the atomizing component 230 is exhausted, the atomizing matrix in the liquid storage tank 300 can be replenished in time.

[0031] Referring to Figures 3 and 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 suction action. The airflow sensor 100 includes a sensing component 120 and a housing assembly 110. The sensing component 120 includes a sensing side 121 and an atmospheric pressure side 122. The sensing side 121 is configured to deform or displace in response to changes in spatial air pressure, and the atmospheric pressure side 122 is located on the opposite side of the sensing side 121. The housing assembly 110 includes a first protective layer 111 that at least partially covers the sensing side 121. A first through-hole 112 is formed in the first protective layer 111, and the diameter of the first through-hole 112 is L1, satisfying L1 ≤ 0.1 mm.

[0032] When using the atomizing device of this embodiment, the user draws air from the nozzle 240 on the outer casing 200, causing a change in air pressure inside the outer casing 200. The sensing side 121 of the airflow sensor 100 corresponds to the diaphragm in the parallel plate capacitor, and the atmospheric 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 shifts relative to the atmospheric pressure side 122, that is, the electric field condition inside the parallel plate capacitor changes, thereby causing the airflow sensor 100 to emit 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. The aerosol flows along the gas channel 210 to the nozzle 240 for the user to inhale. When the atomizing component 230 performs atomization, the un-atomized aerosol generation matrix is ​​very easy to gather into small droplets and drip towards the airflow sensor 100.

[0033] Since the housing assembly 110 is positioned between the atomizing assembly 230 and the sensing assembly 120, small droplets will fall directly onto the first protective layer 111 of the housing assembly 110. The first through-hole 112 on the first protective layer 111 has a diameter of 0.1 mm or less. Due to factors such as viscosity and surface tension of the liquid, the aerosol generating matrix cannot pass through the first through-hole 112. In other words, the sensing assembly 120 can exchange gases normally within the gas channel 210 through the first through-hole 112, while the aerosol generating matrix cannot pass through it. This prevents the aerosol generating matrix from contacting the sensing assembly 120, thus preventing damage to the airflow sensor 100 caused by the aerosol generating matrix and improving the stability of this embodiment.

[0034] In some embodiments, the sensing component 120 is protected by a first protective layer 111 to prevent the aerosol generation matrix from contacting the sensing component 120, thus ensuring that the airflow sensor 100 is not damaged. Simultaneously, the first through-hole 112 allows the sensing component 120 to promptly detect changes in air pressure within the gas channel 210 and send a signal to the atomizing component 230 to control its activation or deactivation, ensuring that the airflow sensor 100 is not easily corroded by condensate droplets and thus does not malfunction.

[0035] Referring to Figure 4, in some embodiments, the first through holes 112 are configured as a closely arranged array of through holes. Taking the opening of 5 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 conventional airflow sensor, enabling the airflow sensor 100 of this embodiment to respond sensitively to changes in airflow.

[0036] In some embodiments, the porous array is arranged in a circular (not shown), triangular (not shown), quadrilateral (not shown), or cross-shaped (not shown) configuration. The relatively uniform porous array can enable the sensing side 121 to respond more accurately to changes in air pressure and undergo corresponding deformation.

[0037] In some embodiments, as shown in Figures 3 and 4, the housing assembly 110 further includes a second protective layer 113. The second protective layer 113 is disposed on the side of the first protective layer 111 near the sensing side 121. A second through-hole 114 is formed on the second protective layer 113, communicating with the first through-hole 112. The second protective layer 113, which cooperates with the first protective layer 111, further ensures that the aerosol generating matrix dripping onto the housing assembly 110 will not penetrate onto the sensing component 120. In this embodiment, the aerosol generating matrix dripping onto the first protective layer 111 cannot pass through the first through-hole 112 due to its small diameter. Even if a small amount of aerosol generating matrix does pass through the first through-hole 112 due to various other factors, it will be blocked by the second protective layer 113, preventing the aerosol generating matrix from continuing to flow and contacting the sensing component 120, thus avoiding contamination or damage to the sensing component 120. By combining the first protective layer 111 and the second protective layer 113, the protective capability of the housing assembly 110 in this embodiment is further improved, thereby enhancing the reliability of this embodiment.

[0038] In some embodiments, exemplarily as shown in Figures 3 and 4, each 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 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. That is, 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-hole 112 and the second through-hole 114 on the first protective layer 111 do not overlap, i.e., the first through-hole 112 and the second through-hole 114 are staggered. In this way, after the aerosol generating matrix drips onto the first protective layer 111, it will be blocked by the first through-hole 112. Even if some of the aerosol generating matrix is ​​affected by other factors and passes through the first through-hole 112, it will not flow directly to the second through-hole 114, thereby improving the protective capability of the first through-hole 112 and the second through-hole 114 for the sensing component 120. Furthermore, by providing a second through hole 114 that connects to the first through hole 112, the length of the flow path required for the aerosol generating matrix to come into contact with the sensing component 120 is extended, further avoiding the risk of the aerosol generating matrix coming into contact with the sensing component 120.

[0039] In some embodiments, exemplarily as shown in Figures 3 and 4, the diameter of the second through hole 114 is L2, satisfying: L2 ≤ 0.1 mm. Since the diameter of the second through hole 114 is less than or equal to 0.1 mm, the aerosol generating matrix will be affected by factors such as viscosity and liquid surface tension, preventing it from passing through the second through hole 114. Furthermore, in this embodiment, the diameter of the first through hole 112 is set to 0.1 mm to initially block the aerosol generating matrix. The first through hole 112 and the second through hole 114 are staggered to further block the aerosol generating matrix. The diameter of the second through hole 114 is also set to 0.1 mm, further blocking the aerosol generating matrix. This ensures that the aerosol generating matrix will not pass through the housing assembly 110 and contact the sensing assembly 120, protecting the sensing assembly 120, which in turn protects the airflow sensor 100, extending the service life of the atomizing device in this embodiment.

[0040] In some embodiments, exemplarily, please continue to refer to Figures 3 and 4, a plurality of first through holes 112 are evenly distributed on the first protective layer 111. A plurality of second through holes 114 are formed on the second protective layer 113, and the first through holes 112 and the second through holes 114 are correspondingly arranged. The provision of a plurality of first through holes 112 on the first protective layer 111 and a plurality of second through holes 114 on the second protective layer 113 can ensure that the sensing component 120 can be normally and smoothly ventilated in the gas channel 210, and avoid the situation where dripping aerosol generation matrix happens to block one or more of the first through holes 112, thereby affecting the sensing component 120's sensing of the gas pressure in the gas channel 210, further improving the structural rationality and reliability of this embodiment.

[0041] In some embodiments, exemplarily as shown in Figures 3 and 4, the first through hole 112 penetrates the first protective layer 111, and the length of the first through hole 112 is L3, satisfying: L3≤0.1mm. The second through hole 114 penetrates the second protective layer 113, and the length of the second through hole 114 is L4, satisfying: L4≤0.1mm. The lengths of both the first through hole 112 and the second through hole 114 are set to 0.1mm. This allows for a reduction in the thickness of the first protective layer 111 and the second protective layer 113 in this embodiment, while ensuring that the aerosol generation matrix does not pass through the housing assembly 110 via the first through hole 112 and the second through hole 114. This results in a more compact overall structure of the housing assembly 110, leading to a more rational structure within the atomizing device and providing space for other components within the atomizing device, making this embodiment easier to assemble.

[0042] In related technologies, the holes on the airflow sensor 100 used for sensing air pressure are usually large. To avoid contamination or damage to the airflow sensor 100 by the aerosol generation matrix, the holes are usually extended and bend multiple times, resulting in a large space occupied by the airflow sensor 100. In this embodiment, the lengths of the first through hole 112 and the second through hole 114 are both set to 0.1 mm. While maintaining a small and compact structure for the housing assembly 110, the sensing component 120 is protected, making the overall structure of this embodiment smaller and easier for users to carry or hold. Furthermore, the shorter lengths of the first through hole 112 and the second through hole 114 allow the sensing component 120 to react faster and the sensing results to be more accurate, further improving the user experience of this embodiment.

[0043] In some embodiments, as exemplarily shown in Figures 3 and 4, a cavity 130 is formed on the housing assembly 110. Both the first protective layer 111 and the second protective layer 113 are disposed on one side of the cavity 130, and the sensing component 120 is installed within the cavity 130. The cavity 130 on the housing assembly 110 protects the sensing component 120. On the one hand, the cavity 130 allows for positioning of the sensing component 120 during installation, reducing assembly difficulty. On the other hand, the cavity 130 provides comprehensive protection for the sensing component 120. That is, while ensuring that the aerosol generating matrix does not penetrate the housing assembly 110 and cause contamination or damage to the sensing component 120, it also provides circumferential protection to other parts of the sensing component 120, while preventing damage from external factors, thus improving the reliability of this embodiment.

[0044] In some embodiments, as exemplarily shown in Figures 3 and 4, both the first protective layer 111 and the second protective layer 113 are disposed towards the atomizing assembly 230, and the sensing assembly 120 is disposed on the side of the housing assembly 110 away from the atomizing assembly 230. The first protective layer 111 and the second protective layer 113 are disposed towards the atomizing assembly 230, meaning that the first through hole 112 and the second through hole 114 are both arranged along the direction from the atomizing assembly 230 to the sensing assembly 120. This ensures that when the user performs an 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. Furthermore, 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 protective capability of the housing assembly 110 for the sensing assembly 120.

[0045] It should be noted that the housing assembly 110 and the sensing assembly 120 can also be arranged according to the actual situation inside the housing 200, as long as the housing assembly 110 can protect the sensing assembly 120 and prevent the sensing assembly 120 from contacting the aerosol generating matrix.

[0046] In some embodiments, as exemplarily shown in FIG2, the atomizing component 230 has an atomizing channel 220, which is in liquid guiding communication with the liquid storage tank 300 and in airflow communication with the gas channel 210. The atomizing component 230 includes an atomizing core disposed within the atomizing channel 220 for heating and atomizing the aerosol generation matrix flowing into the atomizing channel 220. Within the housing 200, the atomizing channel 220 and the gas channel 210 are separated, extending the distance between the atomizing component 230 and the airflow sensor 100. This prevents incompletely atomized aerosol generation matrix near the atomizing component 230 from falling directly onto the airflow sensor 100, reducing the protective burden on the housing component 110 and improving the protective capability of this embodiment.

[0047] In some embodiments, as exemplarily shown in Figures 2 and 3, an air inlet 270 communicating with the gas channel 210 is provided at one end of the housing 200 away from the nozzle 240, and at least two air inlets 270 are provided; the atmospheric pressure side 122 of the sensing component 120 is kept in communication with the outside through the air inlets 270. Providing multiple air inlets 270 at one end of the housing 200 allows the atmospheric pressure side 122 to maintain real-time communication with the outside, so that the airflow sensor 100 can send a timely and sensitive signal when the sensing side 121 changes. Furthermore, providing multiple air inlets 270 also ensures that sufficient air passes through the air inlets 270 during suction, ensuring smooth air supply to the nozzle 240 and improving the user experience of this embodiment.

Claims

1. An atomizing device, characterized in that, include: A housing (200) is provided with a suction nozzle (240) at one end of the housing (200), and at least one gas passage (210) communicating with the suction nozzle (240) is formed inside the housing (200); A liquid storage chamber (300) is positioned inside the outer shell (200) and is used to store the aerosol generation matrix; Atomizing component (230) is used to heat the aerosol to generate a matrix. The atomizing component (230) is in airflow communication with the gas channel (210), and the atomizing component (230) is in liquid guiding communication with the liquid storage tank (300). An airflow sensor (100) outputs an electrical signal in response to a change in spatial air pressure, the change in spatial air pressure being caused at least by a user's suction action, the airflow sensor (100) including a sensing component (120) and a housing component (110); The sensing component (120) includes a sensing side (121) and an atmospheric pressure side (122). The sensing side (121) is configured to deform or displace in response to changes in spatial air pressure. The atmospheric pressure side (122) is located on the side opposite to the sensing side (121). The housing assembly (110) includes a first protective layer (111) that at least partially covers the sensing side (121), and a first through hole (112) is provided on the first protective layer (111), the diameter of the first through hole (112) being L1, which satisfies L1≤0.1mm.

2. The atomizing device according to claim 1, characterized in that, The housing assembly (110) further includes a second protective layer (113), which is disposed on the side of the first protective layer (111) near the sensing side (121). 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, Each 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 interconnected, 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≤0.1mm.

5. The atomizing device according to claim 2, characterized in that, Multiple adjacent first through holes (112) are evenly distributed on the first protective layer (111); Multiple adjacent second through holes (114) are evenly distributed on the second protective layer (113), and the first through hole (112) and the second through hole (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) penetrates 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) penetrates 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 any one of claims 2 to 6, characterized in that, The housing assembly (110) has a cavity (130), the first protective layer (111) and the second protective layer (113) are both disposed on one side of the cavity (130), and the sensing component (120) is installed inside 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 disposed facing the atomizing component (230), and the sensing component (120) is disposed on the side of the housing component (110) away from the atomizing component (230).

9. The atomizing device according to any one of claims 1 to 8, characterized in that, The atomizing component (230) has an atomizing channel (220) inside, the atomizing channel (220) is connected to the liquid storage tank (300) for liquid guiding, and the atomizing channel (220) is connected to the gas channel (210) for airflow; The atomizing component (230) includes an atomizing core disposed within the atomizing channel (220) for heating and atomizing the aerosol generation matrix flowing into the atomizing channel (220).

10. The atomizing device according to any one of claims 1 to 8, characterized in that, An air inlet (270) communicating with the gas channel (210) is provided at one end of the housing (200) away from the nozzle (240), and at least two air inlets (270) are provided; the atmospheric pressure side (122) of the sensing component (120) is kept in communication with the outside through the air inlets (270).

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