Detection structure and aerosol-generating device

Abstract

The utility model discloses a detection structure and an aerosol generating device, and relates to the field of aerosol generating devices.The detection structure comprises a bearing seat, a detection device, a detection device and a control device, and the bearing seat is provided with an installation cavity and a bearing cavity used for containing an aerosol rod; the detection assembly is arranged in the mounting cavity and is used for emitting detection light rays to the bearing cavity and receiving the reflected detection light rays; the circuit board is arranged on the bearing seat, and the detection assembly is further connected with the circuit board; and the shading piece is arranged in the mounting cavity, the periphery of the detection assembly is covered with the shading piece, and the shading piece is provided with a light outlet for the detection light to pass through. The aerosol-generating device includes a detection structure.

Description

Technical Field

[0001] This utility model relates to the technical field of aerosol generation devices, and in particular to a detection structure and an aerosol generation device. Background Technology

[0002] Aerosol generators are a new type of electronic product that can replace traditional cigarettes and have attracted widespread attention. Aerosol generators heat e-liquid through a vaporizer to produce inhalable vapor. In heated non-combustible aerosol generators, the aerosol stick is a key component. During use, it needs to be inserted into the heating chamber and heated by a heating element. If the aerosol stick is not inserted, the heating element will not produce aerosol, affecting the user experience.

[0003] However, most aerosol generation devices on the market currently have complex detection structures designed to detect whether there are aerosol rods in the heating chamber, and external ambient light can easily enter and affect the detection results, resulting in a low success rate of detection and identification. Utility Model Content

[0004] The main purpose of this invention is to provide a detection structure that solves the technical problem that the current aerosol rod detection structure of aerosol generation devices is easily affected by external ambient light, resulting in a low detection and recognition success rate.

[0005] To achieve the above objectives, the detection structure proposed in this utility model includes:

[0006] The support base is provided with an installation cavity and a support cavity for placing aerosol rods;

[0007] A detection component is disposed within the mounting cavity and is used to emit detection light towards the bearing cavity and receive the reflected detection light.

[0008] A circuit board is disposed on the support, and the detection component is also connected to the circuit board; and

[0009] A light-shielding component is disposed within the mounting cavity, covering the outer periphery of the detection component, and the light-shielding component is provided with a light outlet for the detection light to pass through.

[0010] This invention also proposes an aerosol generating device, including the detection structure described above. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0012] Figure 1 This is an exploded structural diagram of an embodiment of the detection structure provided by this utility model;

[0013] Figure 2 A schematic diagram of the light-shielding component in an embodiment of the detection structure provided by this utility model;

[0014] Figure 3 This is a cross-sectional view of an embodiment of the detection structure provided by this utility model.

[0015] Figure 4 A schematic diagram of an embodiment of the detection structure provided by this utility model;

[0016] Figure 5 A schematic diagram of simulation and test results data showing that the detection structure provided by this utility model did not detect the aerosol rod;

[0017] Figure 6 This is a schematic diagram of the simulation and test results data of the detection structure provided by this utility model detecting an aerosol rod.

[0018] Explanation of icon numbers:

[0019] 10. Aerosol rods;

[0020] 100, bearing seat; 110, mounting cavity; 111, protrusion; 120, bearing cavity; 130, connecting plate;

[0021] 200. Detection component; 210. Transmitter; 220. Receiver;

[0022] 300. Circuit board;

[0023] 400, Light-shielding component; 410, Light outlet; 420, Light-shielding cavity; 430, Connecting surface;

[0024] 500. Light-transmitting component; 510. Connecting cavity; 511. Recess;

[0025] 600. Protective cover; 610. Clamping part; 620. Shielding plate;

[0026] 700, Protective pad.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] In the existing technology, most aerosol generation devices on the market have complex detection structures for detecting whether there are aerosol rods in the heating chamber, and external ambient light can easily enter and affect the detection results, resulting in a low success rate of detection and identification.

[0032] This utility model proposes a detection structure.

[0033] Please see Figures 1 to 4In one embodiment of this utility model, the detection structure includes: a support 100, a detection component 200, a circuit board 300, and a light-shielding member 400. The support 100 is provided with a mounting cavity 110 and a support cavity 120 for placing the aerosol rod 10. The detection component 200 is disposed in the mounting cavity 110 and is used to emit detection light towards the support cavity 120 and receive reflected detection light. The circuit board 300 is disposed in the support 100, and the detection component 200 is also connected to the circuit board 300. The light-shielding member 400 is disposed in the mounting cavity 110, covers the outer periphery of the detection component 200, and is provided with a light outlet 410 for the detection light to pass through.

[0034] In this embodiment, the support base 100 is made of opaque plastic or other materials, and the support cavity 120 is used to insert the aerosol rod 10. This aerosol rod 10 is suitable for an aerosol generating device and is used to generate aspirable aerosol by heating. The outline of the support cavity 120 is adapted to the outer peripheral outline of the aerosol rod 10. The aerosol rod 10 is inserted into the support cavity 120 along the axial direction of the aerosol rod 10. The presence of the aerosol rod 10 is detected by the detection component 200 to avoid heating even when no aerosol rod 10 is inserted, thus preventing potential danger.

[0035] In specific implementation, the circuit board 300 is mounted on one side of the carrier 100, and the detection component 200 is electrically connected to the circuit board 300 and positioned on the side of the circuit board 300 facing the carrier 100. Further, a mounting cavity 110 is formed in the carrier 100, and the detection component 200 is located within the mounting cavity 110. It is understood that the mounting cavity 110 is connected to the carrier cavity 120, so that the detection light emitted by the detection component 200 passes through the mounting cavity 110 and enters the carrier cavity 120. Specifically, the detection component 200 emits detection light into the carrier cavity 120 and receives the reflected detection light. (Reference) Figures 5 to 6 The image shown is a schematic diagram of simulation and test results data. (For reference) Figure 5 As shown, if no aerosol rod 10 is inserted into the carrier cavity 120, the detection light is reflected through the inner wall of the carrier cavity 120. It is understandable that the carrier 100 has a low reflectivity, and the contour of the inner wall of the carrier cavity 120 also affects the path of light reflection, causing some scattering. This results in only a small amount of light being reflected, thus the detection light signal received by the detection component 200 is weak, meaning the detection light reception data power is weak. (Reference) Figure 6As shown, when the aerosol rod 10 is inserted into the carrier chamber, the detection light emitted by the detection component 200 passes through the mounting cavity 110 and illuminates the outer wall of the aerosol rod 10. The light is then directly reflected back to the detection component 200 through the outer wall. It is understood that the outer wall of the aerosol rod 10 is smooth and has high reflectivity. Furthermore, the position where the detection light is reflected from the outer wall of the aerosol rod 10 is close to the detection component 200, allowing the detection light to be directly reflected back to the detection component 200. This shortens the travel path of the detection light, reduces energy loss, and results in a strong signal received by the detection component 200, meaning the detection light receives strong data. The detection light can be infrared light, or it can be blue light, ultraviolet light, etc., and is not limited in this embodiment. Correspondingly, the detection component 200 uses photodiodes, photodetectors, or reflective photoelectric sensors, etc. According to the simulation data, when the aerosol rod 10 is not inserted, only a very small amount of light or signal is received by the detection component 200 through reflection and refraction. When the aerosol rod 10 is inserted, because the surface of the aerosol rod 10 is smooth, the principle of mirror reflection can reflect most of the light or signal into the detection component 200, thereby improving the accuracy.

[0036] It is understandable that various external light sources may affect the detection component 200's reception of reflected detection light, thus affecting the detection results. In this embodiment, a light-shielding member 400 is provided around the outer periphery of the detection component 200. The light-shielding member 400 is black or another dark color to block external light from entering the detection component 200. (Reference) Figure 2 As shown, in the specific implementation process, the light-shielding member 400 has a light-emitting port 410. The detection light is emitted through the light-emitting port 410 to the carrier cavity 120. Of course, the reflected detection light is incident on the detection assembly 200 through the light-emitting port 410. It can be understood that the light-emitting port 410 is opened on the side of the light-shielding member 400 facing the carrier cavity 120, which ensures the passage of the detection light while blocking external light. In this embodiment, the light-shielding member 400 is sleeved on the outer periphery of the detection assembly 200. The detection assembly 200 is located in the mounting cavity 110. Correspondingly, the light-shielding member 400 is also located in the mounting cavity 110 to ensure a good light-shielding effect.

[0037] Additionally, it should be noted that in this embodiment, the circuit board 300 is an FPC flexible circuit board 300. The FPC is made of a flexible substrate, which can be bent and folded without affecting its electrical performance, making it suitable for the compact spatial layout in this structure.

[0038] This invention employs a detection component 200 to emit detection light to detect aerosol rods 10. Specifically, a support cavity 120 is formed in the support base 100 to hold the aerosol rods 10. The detection component 200 is connected to a circuit board 300, which is mounted on one side of the support base 100. The detection component 200 emits detection light into the support cavity 120 and simultaneously receives the reflected detection light. The presence of aerosol rods 10 in the support cavity 120 is determined based on the received detection light data. Furthermore, to reduce the influence of external ambient light, a light-shielding member 400 is fitted around the detection component 200. The light-shielding member 400 prevents external ambient light from shining on the detection component 200, thus avoiding affecting the accuracy of the detection light data received by the detection component 200 and improving the detection and identification success rate. In addition, the light-shielding member 400 has a light-emitting port 410 facing the support cavity 120 to ensure the smooth passage of both the emitted and emitted detection light.

[0039] refer to Figure 2 and Figure 3 As shown, in one embodiment, the light-shielding member 400 has a light-shielding cavity 420 communicating with the light-emitting port 410, and the detection component 200 is disposed in the light-shielding cavity 420 and does not protrude from the light-shielding cavity 420.

[0040] In this embodiment, the light-shielding member 400 has a light-shielding cavity 420, and is fitted around the outer periphery of the detection component 200 through the light-shielding cavity 420. The detection component 200 is located inside the light-shielding cavity 420. To achieve a better light-shielding effect, the detection component 200 does not protrude from the light-shielding cavity 420. Specifically, based on the layout of the detection component 200 and the light outlet 410, the light-shielding member 400 adopts a ring-shaped structure, surrounding the detection component 200 within the light-shielding cavity 420, preventing it from protruding from the edge of the light-shielding member 400 through the light outlet 410, especially at the position where the detection component 200 receives the detection light, thus avoiding the influence of external light.

[0041] refer to Figure 1 As shown, in one embodiment, the light-shielding member 400 has a connecting surface 430, which is attached to the circuit board 300. In specific implementation, the connecting surface 430 and the light-emitting port 410 are located on opposite sides of the light-shielding member 400. The connecting surface 430 is attached to the circuit board 300 by adhesive bonding, preventing external light from entering the detection component 200 inside the light-shielding member 400 through the gap between the circuit board 300 and the light-shielding member 400, thereby ensuring the accuracy of detection. It can be understood that the side of the light-shielding member 400 connected to the circuit board 300 has a clearance opening to avoid the detection component 200, and the clearance mask is set on the outer periphery of the detection component 200. In addition, the light-shielding member 400 can also be snapped and fixed in the mounting cavity 110, and the side facing the circuit board 300 is in close contact with the circuit board 300 to prevent light from entering the light-shielding cavity 420.

[0042] refer to Figure 1 and Figure 3 As shown, in one embodiment, the detection structure further includes a light-transmitting element 500, which is disposed in the mounting cavity 110. The light-transmitting element 500 has a connecting cavity 510, and the light-shielding element 400 and the detection assembly 200 are disposed in the connecting cavity 510, and the detection light passes through the light-transmitting element 500.

[0043] In this embodiment, the light-transmitting element 500 is installed within the mounting cavity 110 of the support 100, and a connecting cavity 510 is formed to accommodate the detection component 200 and the light-shielding element 400. It is understood that the opening of the connecting cavity 510 faces the circuit board 300. It should be noted that the light-transmitting element 500 is made of a transparent or semi-transparent material, ensuring that the detection light emitted by the detection component 200 and the received reflected detection light can pass through the light-transmitting element 500, thus avoiding affecting the success rate of the detection.

[0044] refer to Figure 1 As shown, in one embodiment, the inner wall of the mounting cavity 110 and the outer peripheral wall of the light-transmitting element 500 are fitted together, and one of them is provided with a plurality of protrusions 111, and the other is provided with a plurality of recesses 511. The protrusions 111 and the recesses 511 fit together and are located in the recesses 511.

[0045] In practical implementation, the protrusions 111 and recesses 511 cooperate with each other to increase the friction between the inner wall of the mounting cavity 110 and the outer wall of the light-transmitting element 500, thereby improving the bonding strength between the two and preventing the light-transmitting element 500 from falling off. Specifically, in one embodiment, the inner wall of the mounting cavity 110 is provided with a plurality of protrusions 111, with adjacent protrusions 111 spaced apart. Correspondingly, the outer peripheral wall of the light-transmitting element 500 is provided with a plurality of recesses 511, with adjacent recesses 511 spaced apart. Furthermore, the portion between two protrusions 111 and the portion between two recesses 511 cooperate and adapt to ensure that the transparent element is tightly installed in the mounting cavity 110. In addition, the protrusions 111 and recesses 511 also extend along the line connecting the detection component 200 and the bearing cavity 120 to prevent the opaque bearing seat 100 from affecting the passage of light. In another embodiment, the interior of the mounting cavity 110 is provided with a plurality of recesses 511, and the outer peripheral wall of the light-transmitting element 500 is provided with a plurality of protrusions 111. The protrusions 111 and the recesses 511 cooperate with each other. For details, please refer to the above description, which will not be described in detail here.

[0046] In one embodiment, the light-transmitting element 500 is injection molded to the support 100. In specific implementation, both the support 100 and the light-transmitting element 500 are formed by injection molding. Specifically, the support 100 and the light-transmitting element 500 are formed using a two-stage injection molding process. After the support 100 is injection molded, the light-transmitting element 500 is injection molded within the mounting cavity 110 using the support 100 as a mold, ensuring a tight connection between the light-transmitting element 500 and the support 100 and preventing detachment.

[0047] refer to Figure 1 and Figure 4 As shown, in one embodiment, the detection structure further includes a protective cover 600, which includes a clamping part 610. The clamping part 610 clamps the connecting circuit board 300 and the carrier 100 to fix the circuit board 300 to the carrier 100.

[0048] The protective cover 600 connects the circuit board 300 and the carrier 100 to mount the circuit board 300 on the carrier 100 and also serves to shield against external electromagnetic interference. In a specific implementation, the carrier 100 includes a connecting part and a supporting part. The connecting part is used to mount and connect the circuit board 300 and the detection component 200, while the supporting part is used to provide a supporting cavity 120 for mounting the aerosol rod 10. Specifically, the supporting part has a cylindrical structure, and the interior of the supporting cavity 120 has multiple protrusions that contact the outer wall of the aerosol rod 10, increasing the friction between them to improve the mounting strength of the aerosol rod 10 and prevent it from falling off. The mounting part has a mounting cavity 110 to accommodate the light-transmitting element 500, and the light-transmitting element 500 has a connecting cavity 510 to accommodate the detection component 200 and the light-transmitting element 500. It is understood that the openings of the mounting cavity 110 and the connecting cavity 510 face the circuit board 300. Plate-like connecting plates 130 are provided on both sides of the opening of the mounting cavity 110 and are tightly connected to the circuit board 300. In this embodiment, the clamping part 610 of the protective cover 600 clamps the circuit board 300 and the connecting plate 130 respectively, so that the circuit board 300 is connected to one side of the support 100. In specific implementation, the protective cover 600 is made of metal and also includes a shielding plate 620. The shielding plate 620 is in close contact with the side of the circuit board 300 away from the detection component 200, and is also used to shield the circuit board 300 and the detection component 200 from the influence of external electromagnetic interference, ensuring the success rate of detection. The metal protective cover 600 is also in close contact with the circuit board 300, has good thermal conductivity, and can effectively conduct heat away from the circuit board 300. The protective cover 600 absorbs heat by directly contacting the circuit board 300 and dissipates the heat, effectively reducing the temperature of the detection component 200 and avoiding affecting the detection results.

[0049] In one embodiment, the detection structure further includes a protective pad 700 disposed between the circuit board 300 and the carrier 100. In this embodiment, the circuit board 300 is an FPC board, and the protective pad 700 can prevent wear on the circuit board 300 to protect the circuit board 300 for normal operation.

[0050] refer to Figure 2 As shown, in one embodiment, the detection component 200 includes a transmitter 210 for emitting detection light toward the carrier cavity 120 and a receiver 220 for receiving reflected detection light. The transmitter 210 and the receiver 220 are arranged side by side on the side of the circuit board 300 facing the mounting cavity 110.

[0051] In a specific implementation, the transmitter 210 can be an infrared light-emitting diode, and the corresponding receiver 220 can be a phototransistor. In another embodiment, the transmitter 210 can be a laser diode, and the corresponding receiver 220 can be a photodiode, photodetector, or reflective photoelectric sensor module to determine whether the aerosol rod 10 is inserted based on the intensity of the received light beam. The transmitter 210 emits light into the carrier cavity 120 from within the mounting cavity 110, and the receiver 220 can effectively detect the light reflected back from within the carrier cavity 120. In this embodiment, the transmitter 210 and receiver 220 are arranged side by side, and the light-shielding member 400 adapts to the external contour formed by the transmitter 210 and receiver 220, thereby covering both within the light-shielding cavity 420.

[0052] In addition, the transmitter 210 and receiver 220 are arranged side by side on the same side of the circuit board 300 and located in the same mounting cavity 110 of the carrier 100. This greatly simplifies the mold design of the carrier 100 and transparent parts, reduces the time and cost of mold processing, and also reduces bending and operation time. It can be used for mass production in small spaces.

[0053] This utility model also proposes an aerosol generating device, which includes the detection structure described above. The specific structure of the detection structure is as described in the above embodiments. Since this aerosol generating device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. It can be understood that the aerosol generating device has a receiving cavity, and the detection structure is located in the receiving cavity. When the aerosol rod is inserted into the bearing cavity, the detection structure detects the insertion of the aerosol rod.

[0054] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the inventive concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A detection structure, characterized by, include: The support base is provided with an installation cavity and a support cavity for placing aerosol rods; A detection component is disposed within the mounting cavity and is used to emit detection light towards the bearing cavity and receive the reflected detection light. A circuit board is disposed on the support, and the detection component is also connected to the circuit board; and A light-shielding component is disposed within the mounting cavity, covering the outer periphery of the detection component, and the light-shielding component is provided with a light outlet for the detection light to pass through.

2. The detection structure of claim 1, wherein, The light-shielding component has a light-shielding cavity communicating with the light-emitting port, and the detection component is disposed in the light-shielding cavity and does not protrude from the light-shielding cavity.

3. The detection structure of claim 1, wherein, The light-shielding component has a connecting surface, which is attached to the circuit board.

4. The detection structure of claim 1, wherein, The detection structure further includes a light-transmitting element, which is disposed in the mounting cavity. The light-transmitting element has a connecting cavity, and the light-shielding element and the detection assembly are disposed in the connecting cavity, with the detection light passing through the light-transmitting element.

5. The detection structure of claim 4, wherein, The inner wall of the mounting cavity and the outer peripheral wall of the light-transmitting element are fitted together, and one of them is provided with a number of protrusions, while the other is provided with a number of concave parts. The protrusions and concave parts are fitted together and located within the concave parts.

6. The detection structure of claim 5, wherein, The light-transmitting component is injection molded to the support base.

7. The detection structure of claim 1, wherein, The detection structure further includes a protective cover, which includes a clamping part that clamps and connects the circuit board and the carrier to fix the circuit board to the carrier.

8. The detection structure of claim 1, wherein, The detection structure also includes a protective pad, which is disposed between the circuit board and the carrier.

9. The detection structure of claim 1, wherein, The detection assembly includes a transmitter for emitting the detection light toward the carrier cavity and a receiver for receiving the reflected detection light, the transmitter and the receiver being arranged side by side on the side of the circuit board facing the mounting cavity.

10. An aerosol-generating device comprising: Includes the detection structure as described in any one of claims 1 to 9.

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