Self-cleaning anti-pollution structure, aerosol generator and electronic cigarette
By designing a self-cleaning and anti-pollution structure in the aerosol generator, and utilizing the sliding contact between the transparent window and the heating rod to remove deposits, the problem of reduced infrared light penetration caused by residues at the transparent window is solved, thus achieving accurate identification by the infrared sensor and a long service life for the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU TONLY ELECTRONICS LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-23
AI Technical Summary
The viscous residue at the transparent window of the aerosol generator can weaken the penetration of infrared light, affecting the recognition effect and thus affecting the normal use of the aerosol generator.
A self-cleaning and anti-contamination structure was designed, including a heating element, a transparent window, and an infrared sensor. The transparent window protrudes from the cavity wall of the heating chamber and slides against the heating rod. The process of inserting and removing the heating rod removes surface deposits and ensures the transmittance of infrared light.
It effectively removes deposits from the surface of the transparent window, maintains the transmittance of infrared light, ensures that the infrared sensor can accurately identify the heating rod, avoids identification failures, and extends the service life of the equipment.
Smart Images
Figure CN224386788U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic atomization device technology, and in particular to a self-cleaning and anti-pollution structure, an aerosol generator, and an electronic cigarette. Background Technology
[0002] In e-cigarettes, the aerosol generator is typically powered by a battery and heats e-liquid to atomize it into an inhalable aerosol. When the user inhales, the airflow triggers a switch, and the heating element begins to work, converting the e-liquid into aerosol.
[0003] To identify specific heating rods, aerosol generators often have a transparent window inside their heating element. During heating, the heating rod is inserted into the heating element, and an external sensor emits infrared light that penetrates the transparent window to identify the inserted heating rod. When the heating rod inside the heating element is heated, its internal components may undergo carbonization or hydrogenation reactions, producing a viscous residue. This residue adheres to the inner wall of the heating element, especially around the transparent window.
[0004] However, with frequent use of the aerosol generator, viscous residue will continuously settle and accumulate at the transparent window. This residue has a certain absorption and scattering effect on infrared light. After repeated use, the impurities accumulated at the window may significantly reduce the penetration of infrared light, resulting in a marked decrease in recognition effectiveness, which in turn will affect the normal use of the aerosol generator. Utility Model Content
[0005] The main purpose of this invention is to propose a self-cleaning and anti-pollution structure, which aims to improve the recognition effect of aerosol generators.
[0006] To achieve the above objectives, the self-cleaning and anti-pollution structure proposed in this utility model includes:
[0007] A heating element having a heating cavity and a sensing hole communicating with the heating cavity;
[0008] A transparent window is disposed on the peripheral wall of the sensing hole; at least a portion of the transparent window protrudes from the cavity wall of the heating chamber to slide against the heating rod; and
[0009] An infrared sensor is located on the side of the transparent window away from the heating cavity.
[0010] This invention also proposes an aerosol generator, including a heating rod and the aforementioned self-cleaning and anti-pollution structure, wherein the heating rod is located inside the heating chamber and slides against the transparent window.
[0011] This utility model also proposes an electronic cigarette, including a housing and the aforementioned aerosol generator, wherein the housing forms an installation cavity, and the heating element is detachably connected to the housing and located within the installation cavity. Attached Figure Description
[0012] 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.
[0013] Figure 1 A schematic diagram of an embodiment of the self-cleaning and anti-pollution structure provided by this utility model;
[0014] Figure 2 A schematic diagram of another embodiment of the self-cleaning and anti-fouling structure;
[0015] Figure 3 for Figure 2 Sectional view along AA;
[0016] Figure 4 A schematic diagram of another embodiment of the self-cleaning and anti-fouling structure;
[0017] Figure 5 This is a cross-sectional view of another embodiment of the self-cleaning and anti-fouling structure.
[0018] Explanation of icon numbers:
[0019] 1000 Self-cleaning and anti-fouling structure 21 Insertion section 1 heating element 3 Infrared sensor 1a heating chamber 4 abutment block 2 Transparent window 4a Second sliding arc surface 2a First sliding arc surface
[0020] 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
[0021] 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.
[0022] 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.
[0023] 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.
[0024] To address the aforementioned problems, this utility model proposes a self-cleaning and anti-pollution structure 1000. Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 This is a schematic diagram of an embodiment of the self-cleaning and anti-pollution structure 1000 provided by this utility model.
[0025] Please see Figure 1 , Figure 2 as well as Figure 3 In one embodiment of the present invention, the self-cleaning anti-pollution structure 1000 includes a heating element 1, a transparent window 2, and an infrared sensor 3. The heating element 1 forms a heating cavity 1a and a sensing hole communicating with the heating cavity 1a. The transparent window 2 is disposed on the peripheral wall of the sensing hole. At least a portion of the structure of the transparent window 2 protrudes from the cavity wall of the heating cavity 1a to slide against the heating rod. The infrared sensor 3 is disposed on the side of the transparent window 2 away from the heating cavity 1a.
[0026] Among them, the heating element 1 refers to the component used to generate heat. It has a space inside to accommodate the heating rod. Heat transfer and sensor signal conduction are achieved by setting the heating cavity 1a and the sensing hole.
[0027] Among them, the transparent window 2 refers to a covering structure with light-transmitting properties. A scraping interface is formed by the protrusion of part of the structure on the peripheral wall of the heating cavity 1a, and the surface deposits are removed by sliding contact with the heating rod.
[0028] Among them, the infrared sensor 3 is an element used to detect the status of the heating rod, which is set on the back of the transparent window 2 to avoid direct contact with the high temperature area.
[0029] The heating element 1 forms a heating cavity 1a and a sensing hole communicating with the heating cavity 1a; a transparent window 2 is disposed on the peripheral wall of the sensing hole, with a portion of its structure protruding from the peripheral wall of the heating cavity 1a; an infrared sensor 3 is disposed on the side of the transparent window 2 opposite to the heating cavity 1a; when the heating rod is inserted into the heating cavity 1a, the heating rod slides against the protruding transparent window 2 to remove deposits from the surface of the transparent window 2. The infrared sensor 3 emits and receives infrared light through the transparent window 2 to identify the characteristics of the heating rod; since the surface of the transparent window 2 remains clean, the transmission of infrared light is not interfered with by deposits, thereby improving the accuracy and reliability of identification.
[0030] In the technical solution of this utility model, at least a portion of the structure of the transparent window 2 protrudes from the cavity wall of the heating chamber 1a, so that it can slide against the transparent window 2 during the insertion or removal of the heating rod, thereby effectively scraping off the viscous residues adhering to the surface of the transparent window 2 and preventing the residues from accumulating at the transparent window, thus ensuring the cleanliness of the surface of the transparent window 2 and ensuring the penetration of infrared light, thereby ensuring that the infrared sensor 3 can accurately identify the heating rod and avoiding identification failures caused by window contamination.
[0031] Please see Figure 1 , Figure 3 as well as Figure 4 In one embodiment of this utility model, the end of the transparent window 2 away from the infrared sensor 3 has a first sliding arc surface 2a that is adapted to the outer periphery of the heating rod.
[0032] The curvature of the first sliding arc surface 2a matches the curvature of the outer surface of the heating rod, forming a continuous contact surface. The arc surface at the end of the transparent window 2 away from the infrared sensor 3 extends parallel to the insertion direction of the heating rod, covering a portion of the outer periphery of the heating rod. Specifically, when the heating rod is inserted into the heating cavity 1a, the first sliding arc surface 2a slides in contact with the outer surface of the heating rod, reducing the gap between the contact surfaces. The curvature of the arc surface matches the outer diameter of the heating rod. During the sliding process, the arc surface guides the heating rod to move along a predetermined trajectory, preventing residues from embedding in gaps due to uneven contact surfaces. The continuous contact between the arc surface and the outer periphery of the heating rod further prevents aerosol residues from depositing on the sliding path, maintaining the cleanliness of the infrared-transmitting area of the transparent window 2.
[0033] The radius of curvature of the first sliding arc surface 2a matches the outer diameter of the heating rod, allowing the heating rod to fit tightly against the first sliding arc surface 2a. When the heating rod is inserted into the heating chamber 1a, the outer surface of the heating rod slides in contact with the first sliding arc surface 2a, achieving a good sliding fit. This ensures a tight fit and smooth sliding between the transparent window 2 and the heating rod, allowing the heating rod to effectively scrape the surface of the transparent window 2 during removal, eliminating residues and significantly improving the self-cleaning ability of the transparent window 2. This reduces the impact of residues on the infrared light transmittance, thus ensuring the normal operation of the infrared sensor 3. Simultaneously, the design of the first sliding arc surface 2a also reduces friction between the heating rod and the transparent window 2, improving the smoothness of the heating rod's insertion and removal, and extending the service life of the equipment.
[0034] Please see Figure 1 and Figure 3 In one embodiment of this utility model, the periphery of both ends of the first sliding arc surface 2a along the insertion direction of the heating rod is rounded.
[0035] The first sliding arc surface 2a has rounded edges at both its front and rear ends along the insertion direction of the heating rod. Specifically, the front and rear ends of the first sliding arc surface 2a have rounded transition structures, which makes the contact between the first sliding arc surface 2a and the heating rod smoother. The radius of the rounded corners can be designed according to the diameter of the heating rod to ensure that the heating rod can slide smoothly during insertion and removal. At the same time, the rounded corners can also reduce wear between the heating rod and the edge of the first sliding arc surface 2a, extending the service life of both. In addition, the rounded corner structure can also prevent the heating rod from being scratched or damaged by sharp edges during insertion and removal, thereby improving the service life of the entire device.
[0036] Please see Figure 4 and Figure 5 In one embodiment of the present invention, the self-cleaning anti-pollution structure 1000 further includes an abutment block 4, which is disposed on the inner wall of the heating cavity 1a and abuts against the side wall of the transparent window 2 in the direction of insertion of the heating rod.
[0037] The abutment block 4 can be fixed to the inner wall of the heating cavity 1a by welding, bolting, or snap-fitting. The contact surface between the abutment block 4 and the transparent window 2 can be designed as a plane to increase contact stability. By setting the abutment block 4 on the inner wall of the heating cavity 1a and making it abut against the front side wall of the transparent window 2, the wear caused by repeated force on the transparent window 2 can be reduced, thereby extending the service life of the transparent window 2.
[0038] Please see Figure 4 and Figure 5In one embodiment of the present invention, the side wall of the abutment block 4 away from the infrared sensor 3 has a second sliding arc surface 4a connected to the first sliding arc surface 2a, and the first sliding arc surface 2a and the second sliding arc surface 4a are located on the same arc surface.
[0039] The second sliding arc surface 4a and the first sliding arc surface 2a are connected by a continuous curved surface, and their radii of curvature are the same, forming a smooth transition contact surface. The sidewall of the abutment block 4 and the sidewall of the transparent window 2 are seamlessly connected by the second sliding arc surface 4a and the first sliding arc surface 2a, forming a complete arc-shaped guide surface. The second sliding arc surface 4a and the first sliding arc surface 2a can be made of the same material.
[0040] As the heating rod slides along the insertion direction, its outer surface simultaneously contacts the continuous arc surface formed by the first sliding arc surface 2a and the second sliding arc surface 4a. This continuous arc surface eliminates the step gap between the original abutment block 4 and the transparent window 2, ensuring the heating rod's sliding trajectory remains linear. Residue cannot deposit at the junction of the continuous arc surface, reducing the thickness of the impurity layer along the infrared light penetration path. The continuous arc surface further guides the residue generated during the heating rod's sliding process out along the tangential direction of the arc surface, preventing impurities from forming localized accumulations on the surface of the transparent window 2. This achieves a smooth transition between the heating rod and the transparent window 2. Since the first sliding arc surface 2a and the second sliding arc surface 4a are located on the same arc surface, the heating rod can slide along the continuous arc surface during insertion and removal, reducing resistance during insertion and removal and facilitating user operation. Simultaneously, the continuous arc sliding surface also helps prevent e-liquid residue from accumulating in the gap between the transparent window 2 and the abutment block 4, thereby improving the self-cleaning effect.
[0041] Please see Figure 4 and Figure 5 In one embodiment of this utility model, the periphery of the second sliding arc surface 4a at the forward end along the insertion direction of the heating rod is set at a right angle.
[0042] As the heating rod moves along the insertion direction, the right-angled periphery of the second sliding arc surface 4a forms a rigid contact interface with the outer wall of the heating rod. The edges of the right-angled structure generate local high-pressure areas during the sliding process. This pressure acts on the residue accumulation layer on the side wall of the transparent window 2, causing it to shear and peel off, thereby further improving the cleaning effect and ensuring that the infrared sensor 3 can accurately identify the heating rod, avoiding identification failures caused by window contamination.
[0043] Please see Figure 4 and Figure 5In one embodiment of the present invention, the transparent window 2 has an insertion part 21, which protrudes from the peripheral wall of the heating cavity 1a and is located at the end of the transparent window 2 away from the abutment block 4; the distance between the side wall of the insertion part 21 away from the infrared sensor 3 and the axis of the heating cavity 1a gradually decreases along the insertion direction of the heating plate.
[0044] The insertion part 21 protrudes from the peripheral wall of the heating cavity 1a, allowing the heating rod to directly contact the insertion part 21 during insertion, avoiding friction with the peripheral wall of the heating cavity 1a. The end of the insertion part 21 furthest from the abutment block 4 is located at the end of the transparent window 2, ensuring a continuous sliding path for the heating rod. The gradually decreasing distance between the side wall of the insertion part 21 and the axis of the heating cavity 1a forms an inclined surface, guiding the heating rod to slide in a predetermined direction. Furthermore, the inclined side wall of the insertion part 21 can be designed as a smooth curved surface to further reduce friction during heating rod insertion. The length of the insertion part 21 can be adjusted according to actual needs to ensure that the heating rod can be smoothly inserted and positioned.
[0045] By setting the insertion part 21 and gradually reducing the distance between its side wall and the axis of the heating chamber 1a, the heating rod can be effectively guided to be inserted into the heating chamber 1a along a predetermined path. It can also reduce the friction generated during the insertion of the heating rod, thereby improving the smoothness of insertion and the user experience.
[0046] It is understood that the transparent window 2 can be made of copolyester or polyimide. In one embodiment of this invention, the transparent window 2 is made of polyimide.
[0047] Polyimide, with its high-temperature resistance and low surface energy, can withstand the high-temperature environment inside the heating chamber 1a while reducing the adhesion of residues to the surface of the transparent window 2. Polyimide can be processed into thin films or block structures, with its thickness adjusted according to the wavelength penetration requirements of the infrared sensor 3. Specifically, the transparent window 2 made of polyimide maintains structural stability at high temperatures, preventing sliding contact failure with the heating rod due to thermal expansion. Its low surface energy makes it difficult for residues to adhere; even if a small amount of residue adheres, it can be removed by the mechanical friction of the sliding heating rod. Therefore, the infrared sensor 3 can continuously and accurately identify the status of the heating rod through the transparent window 2, extending the service life of the aerosol generator.
[0048] By utilizing the high-temperature resistance and non-adhesive properties of polyimide material, carbonized residues are effectively prevented from depositing on the surface of the transparent window 2 during repeated insertion and removal of the heating rod. The chemical inertness of polyimide can resist the corrosion of e-liquid components, maintain the flatness and optical transmittance of the window surface for a long time, and enable the infrared sensor 3 to continuously and stably penetrate the window to identify the heating rod, thereby avoiding the signal attenuation problem caused by the accumulation of contaminants.
[0049] In summary, polyimide is the preferred material for the transparent window 2.
[0050] This utility model also proposes an aerosol generator, which includes a heating rod and a self-cleaning anti-pollution structure 1000. The specific structure of the self-cleaning anti-pollution structure 1000 is as described in the above embodiments. Since this aerosol generator 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, which will not be described in detail here. The heating rod is located inside the heating chamber 1a and slides against the transparent window 2.
[0051] This utility model also proposes an electronic cigarette, which includes a housing and an aerosol generator. The specific structure of the aerosol generator is as described in the above embodiments. Since this electronic cigarette 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, which will not be described in detail here. The housing has a mounting cavity, and the heating element 1 is detachably connected to the housing and located within the mounting cavity.
[0052] 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 technical 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 self-cleaning and anti-fouling structure, characterized in that, include: A heating element having a heating cavity and a sensing hole communicating with the heating cavity; A transparent window is disposed on the periphery of the sensing hole; At least a portion of the structure of the transparent window protrudes from the peripheral wall of the heating cavity to slide against the heating rod; as well as An infrared sensor is located on the side of the transparent window away from the heating cavity.
2. The self-cleaning and anti-fouling structure as described in claim 1, characterized in that, The end of the transparent window away from the infrared sensor has a first sliding arc surface that adapts to the outer periphery of the heating rod.
3. The self-cleaning and anti-fouling structure as described in claim 2, characterized in that, The first sliding arc surface has rounded corners at both ends of the front and rear ends along the insertion direction of the heating rod.
4. The self-cleaning and anti-fouling structure as described in claim 2, characterized in that, The self-cleaning and anti-pollution structure also includes an abutment block, which is located on the inner wall of the heating chamber and abuts against the front side wall of the transparent window along the insertion direction of the heating rod.
5. The self-cleaning and anti-fouling structure as described in claim 4, characterized in that, The abutment block has a second sliding arc surface connected to the first sliding arc surface on its side wall away from the infrared sensor, and the first sliding arc surface and the second sliding arc surface are located on the same arc surface.
6. The self-cleaning and anti-fouling structure as described in claim 5, characterized in that, The periphery of the second sliding arc surface at the forward end along the insertion direction of the heating rod is set at a right angle.
7. The self-cleaning and anti-fouling structure as described in claim 6, characterized in that, The transparent window has an insertion part that protrudes from the peripheral wall of the heating cavity and is located at the end of the transparent window away from the abutment block; The distance between the side wall of the insertion part away from the infrared sensor and the axis of the heating cavity gradually decreases along the insertion direction of the heating rod.
8. The self-cleaning and anti-fouling structure as described in any one of claims 1 to 7, characterized in that, The transparent window is made of polyimide.
9. An aerosol generator, characterized in that, The aerosol generator includes a heating rod and a self-cleaning anti-pollution structure as described in any one of claims 1 to 8, wherein the heating rod is located inside the heating chamber and slides against the transparent window.
10. An electronic cigarette, characterized in that, The electronic cigarette includes a housing and an aerosol generator as described in claim 9, the housing having a mounting cavity, and the heating element being detachably connected to the housing and located within the mounting cavity.