Dry-burn prevention atomizing core

Abstract

The utility model provides a kind of anti dry-burning atomizing core, it includes: base, the base one side surface forms atomizing face, at least two liquid storage grooves are concavely equipped with to atomizing face, interval area is equipped between two adjacent the liquid storage groove;Heating element, the heating element is located on atomizing face and is adjacent with the liquid storage groove Setting;The heating element is serpentine in turn and passes two adjacent the liquid storage groove outer periphery, and is equipped in interval area.The utility model solves the technical problem that the oil storage capacity of existing ceramic atomizing core is small, and dry-burning phenomenon is easily caused.

Description

Technical Field

[0001] This utility model relates to the field of electronic atomization equipment technology, and more specifically to an anti-dry-burning atomization core. Background Technology

[0002] Existing aerosol generators often suffer from a technical bottleneck in balancing liquid storage capacity and wicking efficiency in their atomizing core components. While traditional ceramic atomizing cores possess porous wicking properties, their planar structure limits their liquid storage space. Under continuous operation or high-power output conditions, the replenishment rate of the aerosol substrate tends to lag behind the evaporation rate. Particularly when ambient temperature changes or liquid viscosity increases, the capillary wicking performance of porous ceramics fluctuates, leading to localized liquid supply interruptions on the heating element surface and causing overheating and dry burning. Existing improvements primarily optimize matrix thickness or porosity; however, increasing matrix thickness lengthens the wicking path, while increasing porosity weakens structural strength. Therefore, constructing an atomizing core structure that maintains a thin profile while dynamically adjusting the liquid supply is a pressing technical challenge in this field. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide an anti-dry burning atomizing core, which aims to solve the technical problem that the existing ceramic atomizing core has a small oil storage capacity and is prone to dry burning.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dry-burning prevention atomizing core, the atomizing core comprising:

[0006] A substrate, wherein an atomizing surface is formed on one side surface of the substrate, and at least two liquid storage tanks are provided with a downwardly recessed atomizing surface, with an interval area between two adjacent liquid storage tanks;

[0007] A heating element is disposed on the atomizing surface and adjacent to the liquid storage tank; the heating element is arranged in a serpentine shape, successively bypassing the outer periphery of two adjacent liquid storage tanks and passing through the interval area.

[0008] In one embodiment, the portion of the heating element that passes through the interval area is a connecting segment, and the extending direction of the connecting segment is parallel to the extending direction of the liquid storage tank.

[0009] In one embodiment, the distances from the connecting section to the adjacent liquid storage tank are all equal.

[0010] In one embodiment, the portion of the heating element surrounding the outer periphery of the end of the liquid storage tank is an arc-shaped segment, and the liquid storage tank is located at the opening direction of the arc-shaped segment.

[0011] In one embodiment, the minimum distance from the end of the storage tank away from the adjacent arc segment to the edge of the base along the extension direction of the storage tank is less than the minimum distance from the end of the storage tank near the adjacent arc segment to the edge of the base along the extension direction of the storage tank.

[0012] In one embodiment, the liquid storage tank extends along the length or width of the substrate.

[0013] In one embodiment, the atomizing core further includes two sets of solder pads, which are disposed on the atomizing surface and are respectively connected to both ends of the heating element.

[0014] In one embodiment, the heating element is an integrally formed strip-shaped heating film, and the size and width of the heating film are consistent along the extension direction.

[0015] In one embodiment, the substrate is made of porous ceramic material.

[0016] The advantages of this invention compared to existing technologies are as follows: By setting concave liquid storage tanks on the atomizing surface and distributing them around the heating element, the local liquid storage capacity of the atomizing core is effectively improved. This allows the aerosol substrate to be wetted upwards along the bottom wall of the tank under capillary action, forming a stable liquid film layer. When the heating element is working, the aerosol substrate stored in the liquid storage tank can quickly diffuse to the heating area through the synergistic liquid guiding effect of the tank wall and the porous structure of the substrate, realizing dynamic replenishment of the liquid film during atomization. This achieves both increased liquid storage capacity and optimized liquid guiding path within a limited space, ensuring that the area around the heating element is always adequately covered with aerosol substrate. Especially under continuous operation or instantaneous high suction conditions, the liquid stored in the liquid storage tank can quickly respond to the atomization consumption demand.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of an anti-dry-burning atomizing core provided by this utility model;

[0019] Figure 2 This is a schematic diagram of another embodiment of an anti-dry-burning atomizing core provided by this utility model.

[0020] Figure Labels

[0021] 1. Substrate; 11. Atomizing surface; 12. Liquid reservoir; 13. Spacing zone; 2. Heating element; 21. Connecting section; 22. Arc-shaped section; 3. Solder pad. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0025] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0027] See Figures 1 to 2 As shown, this utility model embodiment discloses an anti-dry-burning atomizing core, the atomizing core comprising:

[0028] The substrate 1 has an atomizing surface 11 formed on one side surface. The atomizing surface 11 is recessed downward and has at least two liquid storage tanks 12. An interval area 13 is provided between two adjacent liquid storage tanks 12.

[0029] The heating element 2 is disposed on the atomizing surface 11 and adjacent to the liquid storage tank 12; the heating element 2 is arranged in a serpentine shape, successively passing around the outer periphery of two adjacent liquid storage tanks 12 and passing through the interval area 13.

[0030] Specifically, the atomizing core includes a substrate 1 and a heating element 2. An atomizing surface 11 is formed on one side of the substrate 1. The atomizing surface 11 has at least two liquid storage tanks 12, with a gap 13 between adjacent liquid storage tanks 12. The heating element 2 passes through the gap 13, and in a serpentine pattern, it successively wraps around the outer periphery of two adjacent liquid storage tanks 12 and passes through the gap 13. The atomizing surface 11 forms at least two concave liquid storage tanks 12, with the bottom plane of the liquid storage tanks 12 lower than the reference height of the atomizing surface 11, forming a vertical local liquid storage space. It is understood that the substrate 1 is made of porous ceramic material, adsorbing the aerosol substrate through capillary action. The depth, width, and extension direction of the liquid storage tanks 12 are designed to fit the dimensions of the substrate 1, ensuring stable liquid storage of the aerosol substrate under capillary action. The layout of the liquid storage tanks 12 around the heating element 2 allows the aerosol substrate to form a stable liquid film within the liquid storage tanks 12 under capillary action, and triggers rapid liquid conduction through the proximity heating effect of the heating element 2. During operation, the aerosol substrate permeates upward from the bottom of the substrate 1 through internal pores into the liquid storage tank 12. The bottom wall of the liquid storage tank 12 maintains the liquid film height through the capillary action of porous ceramics. When the heating element 2 is energized, the liquid in the liquid storage tank 12 generates a gradient pressure difference due to heating. The liquid film rapidly migrates along the tank wall of the liquid storage tank 12 to the surface of the heating element 2, forming a dynamic liquid film layer surrounding the heating area. This ensures a continuous supply of aerosol substrate during heating and provides a local liquid storage unit for the heating element 2. During continuous operation or high power output, the aerosol substrate is preferentially replenished through the adjacent liquid guiding mechanism, significantly reducing the risk of dry burning caused by liquid supply lag.

[0031] Furthermore, the partition zone 13 acts as a liquid-guiding buffer, allowing the heating element 2 to pass through it and balancing the liquid supply to the two liquid storage tanks 12. When the heating element 2 passes through the partition zone 13, the liquid in the two liquid storage tanks 12 diffuses to the surface of the heating element 2 through the pores of the substrate 1 of the partition zone 13, forming a dual-path liquid guidance, further improving the uniformity of liquid film coverage. The dual liquid storage tanks 12 provide a stable liquid supply path, and the liquid guidance of the partition zone 13 reduces the probability of unilateral dry burning.

[0032] Furthermore, through the meandering path design of the serpentine heating element 2, the coverage area of ​​the heating element 2 on the atomizing surface 11 is extended under the layout of the dual liquid storage tanks 12. At the same time, a surrounding liquid guiding channel is formed by utilizing the outer space of the liquid storage tanks 12. The serpentine path allows the heating element 2 to effectively cover the center and edge areas of the atomizing surface 11, avoiding the problem of overheating in the center of the traditional straight heating element 2. Meanwhile, the meandering design of the bends disperses the heat distribution, significantly improving the temperature uniformity of the atomizing surface 11.

[0033] In one embodiment, the portion of the heating element 2 that passes through the interval 13 is a connecting segment 21, and the extending direction of the connecting segment 21 is parallel to the extending direction of the liquid storage tank 12.

[0034] Specifically, when the connecting section 21 of the serpentine heating element 2 passes through the interval 13, the liquid from the two liquid storage tanks 12 on both sides is bidirectionally wetted to the surface of the heating element 2 through the pores of the substrate 1 of the interval 13. By limiting the parallel extension direction of the connecting section 21 and the liquid storage tank 12, the liquid guiding path is aligned with the long axis direction of the liquid storage tank 12, forming a directional liquid film transport channel. It can be understood that in this embodiment, the connecting section 21 passing through the interval 13 is a straight section. The parallel layout reduces the migration resistance of the liquid from the liquid storage tank 12 to the connecting section 21, and at the same time adapts to the power distribution characteristics of the serpentine heating element 2. After the heating element 2 is energized, the heat of the connecting section 21 causes the liquid film to spread rapidly in the parallel direction, forming a continuous liquid film layer aligned with the extension direction of the liquid storage tank 12. The parallel direction design eliminates the path deviation of the liquid lateral migration, making the liquid guiding rate in the area of ​​the connecting section 21 synchronize with the liquid supply capacity of the liquid storage tank 12, significantly reducing the liquid film coverage delay.

[0035] In one embodiment, the distances from the connecting segment 21 to the adjacent liquid storage tank 12 are all equal.

[0036] Specifically, the equidistant layout design ensures a balanced liquid supply pressure between the liquid storage tanks 12 on both sides of the connecting section 21, eliminating the advantage of unilateral liquid guidance caused by spacing differences and adapting to the uniform power distribution requirements of the serpentine heating element 2. Simultaneously, the equidistant gap eliminates the risk of excessively thick or thin liquid films on one side, keeping the liquid film thickness error on the surface of the connecting section 21 within a minimal range and preventing a decrease in atomization efficiency due to localized dry burning or excess liquid. The symmetrical liquid guiding path synchronizes heat generation and liquid evaporation rates on both sides of the connecting section 21, significantly reducing temperature fluctuations and improving atomization stability.

[0037] In one embodiment, the portion of the heating element 2 surrounding the outer periphery of the end of the liquid storage tank 12 is an arc-shaped segment 22, and the liquid storage tank 12 is located at the opening direction of the arc-shaped segment 22.

[0038] Specifically, the portion of the heating element 2 surrounding the outer periphery of the end of the liquid storage tank 12 is an arc-shaped segment 22, with the liquid storage tank 12 located at the opening direction of the arc-shaped segment 22. Through the curved path design of the arc-shaped segment 22, it adapts to the liquid guiding characteristics of the end of the liquid storage tank 12. Utilizing the matching relationship between the arc-shaped opening direction and the extension direction of the liquid storage tank 12, a concentrated liquid film supply mechanism is formed in the end region. It is understood that in this embodiment, the radius of curvature of the arc-shaped segment 22 coordinates with the contour of the end of the liquid storage tank 12, allowing liquid to preferentially migrate through the peripheral pores at the end of the liquid storage tank 12 to the arc-shaped opening side. This achieves directional liquid guiding in the high-heat area at the end, effectively avoiding the risk of dry burning caused by uneven liquid guiding in traditional linear heating elements 2.

[0039] Furthermore, in this embodiment, the serpentine heating element 2 is composed of alternating connecting segments 21 and arc-shaped segments 22. The connecting segment 21 passes through the gap 13 between the two liquid storage tanks 12, extending parallel to the liquid storage tanks 12, and is equidistant from both sides of the liquid storage tanks 12, ensuring symmetrical liquid guidance in the straight area. The liquid film evenly covers the surface of the connecting segment 21 from both sides of the liquid storage tanks 12 through equidistant gaps. The arc-shaped segment 22 wraps around the outer periphery of the end of the liquid storage tank 12, with its opening pointing in the direction of extension of the liquid storage tank 12, allowing the liquid at the end of the liquid storage tank 12 to preferentially migrate to the heating area through the arc-shaped outer path, forming an enhanced liquid film supply at the end. Through the complementary liquid guidance design of the straight segment and the arc-shaped segment 22, continuous liquid film coverage is ensured across the entire area of ​​the atomizing surface 11, significantly reducing the probability of dry burning.

[0040] In one embodiment, the minimum distance from the end of the storage tank 12 away from the adjacent arc segment 22 to the edge of the base 1 along the extension direction of the storage tank 12 is less than the minimum distance from the end of the storage tank 12 near the adjacent arc segment 22 to the edge of the base 1 along the extension direction of the storage tank 12.

[0041] Specifically, the minimum distance from the end of the liquid storage tank 12 furthest from the arc-shaped segment 22 to the edge of the substrate 1 is less than the minimum distance from the end closer to the arc-shaped segment 22 to the edge of the substrate 1. By shortening the distance from the end of the liquid storage tank 12 furthest from the arc-shaped segment 22 (the far end of the liquid storage tank 12) to the edge of the substrate 1, the rapid liquid conduction characteristics of the edge region of the substrate 1 are utilized to preferentially guide the aerosol substrate that has penetrated into the edge to the far end of the liquid storage tank 12. Subsequently, the liquid film extends towards the proximal end (closer to the arc-shaped segment 22) along the long axis of the liquid storage tank 12. The asymmetrical layout forms a "from the outside in" directional liquid guide path, which is adapted to the continuous liquid supply requirements of the high-heat region of the arc-shaped segment 22 in the serpentine heating element 2. The aerosol substrate rapidly permeates from the edge of the substrate 1 through pores to the far end of the liquid storage tank 12, and then migrates along the long axis of the liquid storage tank 12 towards the proximal end of the arc-shaped segment 22. After the heating element 2 is powered on, the liquid film evaporation rate near the arc-shaped segment 22 is accelerated due to the high power density, while the liquid at the far end forms a dynamic liquid film flow through continuous replenishment in the long axis direction, which is continuously supplied to the high-heat area, maximizing the utilization of the liquid conduction capacity of the substrate 1 and ensuring a stable liquid supply to the high-heat area.

[0042] In one embodiment, the liquid storage tank 12 extends along the length or width of the substrate 1.

[0043] Specifically, by selecting the axial extension direction of the liquid storage tank 12, the liquid storage tank 12 can be designed to extend along the length or width of the substrate 1 to adapt to different substrate 1 shapes and aerosol generation requirements.

[0044] When the liquid storage tank 12 extends along its length, it extends along the long axis of the substrate 1, maximizing the use of the longitudinal space of the substrate 1 and forming multiple sets of long strip-shaped liquid storage tanks 12, thus adapting to the design of narrow and long atomizing cores. The aerosol substrate permeates into the liquid storage tank 12 through pores along the long axis of the substrate 1, and the liquid forms a continuous liquid film in the long tank. The heating element 2 is arranged parallel or in a serpentine pattern along the long axis, increasing the liquid storage capacity of a single tank. The liquid film evenly covers the heating area through the long axis liquid guiding path, adapting to high-power continuous operation scenarios.

[0045] When the liquid storage tank 12 extends along the width direction, it extends along the short axis of the base 1, allowing more sets of liquid storage tanks 12 to be arranged side by side in the length direction. The parallel layout of multiple tanks improves the liquid conduction efficiency per unit area. Liquid vertically permeates from the bottom of the base 1 to the liquid storage tanks 12 in each width direction. The parallel layout of a large number of tanks shortens the lateral liquid conduction distance. The heating element 2 passes through the multi-tank interval area 13, forming a multi-point heating-liquid conduction node.

[0046] In this embodiment, when the liquid storage tank 12 extends along its length, two liquid storage tanks 12 are arranged along the short axis of the substrate 1, and the serpentine heating element 2 is sequentially inserted into the interval 13 between the two tanks. The symmetrical design of the two tanks along the short axis adapts to the spatial characteristics of the elongated substrate 1, maximizing the liquid storage capacity within a limited width. The arc-shaped segment 22 of the serpentine heating element 2 wraps around the end of the liquid storage tank 12, and the connecting segment 21 passes through the interval 13, forming a synergistic mechanism of continuous longitudinal heating and transverse dual-path liquid guidance. When the liquid storage tank 12 extends along its width, four liquid storage tanks 12 are arranged along the long axis of the substrate 1, and the heating element 2 is inserted into the interval 13 between adjacent liquid storage tanks 12. The parallel design of four slots along the long axis shortens the vertical migration distance of the liquid from the bottom of the substrate 1 to the heating element 2. This design adapts to the compact substrate 1, where the four slot intervals 13 form multiple liquid guiding nodes. The heating element 2 passes through the intervals 13 between the four liquid storage slots 12, enabling localized high-frequency liquid supply. The short axis extension shortens the vertical migration path of the liquid, significantly reducing the liquid supply response time compared to the longitudinal layout, making it suitable for high-frequency suction scenarios.

[0047] It is understood that in other embodiments, the number of liquid storage tanks 12 can be adjusted according to actual needs to match different substrate 1 shapes and aerosol generation requirements.

[0048] In one embodiment, the atomizing core further includes two sets of solder pads 3, which are disposed on the atomizing surface 11, and the two sets of solder pads 3 are respectively connected to the two ends of the heating element 2.

[0049] Specifically, the atomizing core also includes two sets of pads 3, which are located on the atomizing surface 11 and connected to both ends of the heating element 2. By directly placing the pads 3 on the atomizing surface 11 and connecting them to both ends of the heating element 2, spatial coupling between the current transmission path and the heating area is achieved. The layout of the pads 3 on the atomizing surface 11 avoids the structural thickening caused by traditional side welding. At the same time, by shortening the connection distance between the pads 3 and the heating element 2, the contact resistance and heat loss are reduced, ensuring that electrical energy is efficiently converted into heat energy. The external power supply supplies power to both ends of the heating element 2 through the pads 3, and the current is evenly distributed along the extension direction of the heating element 2. The direct connection between the pads 3 and the heating element 2 eliminates the energy loss caused by wire bridging, making the surface temperature distribution of the heating element 2 more uniform.

[0050] In one embodiment, the heating element 2 is an integrally formed strip-shaped heating film, and the size and width of the heating film are consistent along the extension direction.

[0051] Specifically, the design of an integrally molded, uniformly wide strip-shaped heating film eliminates the resistance differences at the seams of traditional spliced ​​heating elements 2, ensuring a uniform current density distribution along the extension direction. The uniform width structure avoids current concentration caused by sudden changes in local linewidth, thus suppressing hot spot generation, while also adapting to the planar layout requirements of the thin substrate 1. The aerosol matrix migrates through the pores of the substrate 1 to the liquid storage tank 12 and the surface of the heating film. After the heating film is energized, the current flows uniformly along the uniform width structure, and the heat is evenly distributed on the atomization surface 11. The integral molding design eliminates energy loss at the seams, dynamically balancing the evaporation rate and the liquid conduction rate of the liquid film, preventing local interruptions in the liquid film. It is understood that in this embodiment, the heating element 2 is preferably in the form of a heating film, but in actual production, the structure of the heating element 2 can be adaptively adjusted according to actual needs, such as using a heating wire or other form of heating element 2.

[0052] In summary, the anti-dry-burning atomizing core of this embodiment, through the spatial arrangement of the liquid storage tank 12 and the heating element 2, significantly enhances the timeliness and stability of liquid film replenishment while maintaining the overall thinness of the atomizing core. This reduces the risk of local dry burning caused by delayed replenishment of aerosol substrate and improves the working reliability and service life of the aerosol forming device.

[0053] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A dry-burn prevention atomizing core, characterized by, The atomizing core includes: A substrate, wherein an atomizing surface is formed on one side surface of the substrate, and at least two liquid storage tanks are provided with a downwardly recessed atomizing surface, with an interval area between two adjacent liquid storage tanks; A heating element is disposed on the atomizing surface and adjacent to the liquid storage tank; the heating element is arranged in a serpentine shape, successively passing around the outer periphery of two adjacent liquid storage tanks and passing through the interval area. The portion of the heating element surrounding the outer periphery of the end of the liquid storage tank is an arc-shaped segment, and the liquid storage tank is located at the opening direction of the arc-shaped segment; the minimum distance from the end of the liquid storage tank away from the adjacent arc-shaped segment to the edge of the base along the extension direction of the liquid storage tank is less than the minimum distance from the end of the liquid storage tank near the adjacent arc-shaped segment to the edge of the base along the extension direction of the liquid storage tank.

2. A dry-burn prevention wick according to claim 1, wherein The portion of the heating element that passes through the interval area is a connecting section, and the extending direction of the connecting section is parallel to the extending direction of the liquid storage tank.

3. A dry-burn prevention wick according to claim 2, wherein The distances from the connecting section to the adjacent liquid storage tank are all equal.

4. The anti-dry-burn wick of claim 1, wherein, The liquid storage tank extends along the length or width of the substrate.

5. The anti-dry-burn wick of claim 1, wherein, The atomizing core also includes two sets of solder pads, which are disposed on the atomizing surface, and the two sets of solder pads are respectively connected to the two ends of the heating element.

6. The anti-dry-burning atomizing core according to claim 1, characterized in that, The heating element is a strip-shaped heating film that is integrally formed, and the size and width of the heating film are consistent along the extension direction.

7. The anti-dry-burning atomizing core according to claim 1, characterized in that, The substrate is made of porous ceramic material.

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