A heating assembly and a method of manufacturing the same, and an aerosol generating device

Abstract

The application relates to the technical field of aerosol generating equipment, and provides a heating assembly, a preparation method thereof and an aerosol generating device, so as to solve the problem of continuous adsorption of aerosol matrix when a liquid guide piece is placed for a long time. The heating assembly comprises a liquid guide piece, a heating piece and a sealing film. The liquid guide piece has a liquid inlet surface, an atomization surface and a liquid guide hole communicating the liquid inlet surface and the atomization surface. The heating piece is connected to the atomization surface. The sealing film is arranged on the liquid inlet surface. In a non-working state of the heating piece, the sealing film is solidified on the liquid inlet surface to prevent the aerosol matrix from flowing into the liquid guide hole. In a working state of the heating piece, the sealing film is melted and opens the liquid guide hole to enable the aerosol matrix to flow from the liquid inlet surface to the atomization surface. The component of the sealing film comprises edible gelatin. The sealing film made of edible gelatin is arranged on the liquid inlet surface of the liquid guide piece, so that the sealing film can play the role of a heat triggered switch on the liquid guide piece to prevent liquid leakage or excessive soaking of the liquid guide piece when the liquid guide piece is placed for a long time.

Description

Technical Field

[0001] This application relates to the field of aerosol generation equipment technology, specifically to a heating component and its preparation method, as well as an aerosol generating device. Background Technology

[0002] Aerosol generation equipment can be used to heat liquid aerosol matrix to generate aerosols for user use. In existing technology, when the liquid guiding component of the aerosol generation equipment is left to stand for a long time, the liquid guiding holes on the component continuously adsorb the aerosol matrix under capillary action. This can easily lead to leakage or over-wetting of the liquid guiding component, which not only wastes and contaminates the aerosol matrix, but may also cause splashing or splattering problems when the aerosol generation equipment starts up due to oversaturation of the liquid guiding component, affecting the user experience. Summary of the Invention

[0003] This application provides a heating component and its preparation method, as well as an aerosol generating device, aiming to solve the technical problem of continuous adsorption of aerosol matrix when the liquid guiding component is left to stand for a long time.

[0004] Some embodiments of this application provide a heating assembly, including:

[0005] A liquid guiding component has a liquid inlet surface, an atomizing surface, and a liquid guiding hole connecting the liquid inlet surface and the atomizing surface. The liquid guiding hole is used to adsorb liquid aerosol matrix from the liquid inlet surface to the atomizing surface.

[0006] A heating element, connected to the atomizing surface of the liquid guiding element, is used to heat the aerosol matrix to generate an aerosol; and,

[0007] A sealing membrane is disposed on the liquid inlet surface. When the heating element is not in operation, the sealing membrane is solidified on the liquid inlet surface to prevent the aerosol matrix from flowing into the liquid guiding hole. When the heating element is in operation, the sealing membrane is heated and melted, opening the liquid guiding hole so that the aerosol matrix flows from the liquid inlet surface to the atomizing surface.

[0008] The sealing film comprises edible gelatin.

[0009] In some embodiments, the sealing film further comprises a plasticizer, which includes one or more of glycerol, propylene glycol, sorbitol, or xylitol, and the sealing film comprises 85%-95% of the edible gelatin and 3%-10% of the plasticizer by weight percentage.

[0010] In some embodiments, the sealing film further comprises a crosslinking agent, which includes one or more of natural polysaccharides, tannic acid, glutaraldehyde, or genipin, and the sealing film further comprises 0-3% of the crosslinking agent by weight percentage.

[0011] In some embodiments, the sealing film further comprises a modifier, which includes one or more of citric acid, lactic acid, malic acid, or sodium bicarbonate, and the sealing film further comprises 0-1% of the modifier by weight.

[0012] In some embodiments, the thickness of the sealing film is 10um-50um.

[0013] Some embodiments of this application also provide a method for preparing a heating component, used to prepare the heating component described in any of the above embodiments, the method for preparing the heating component includes:

[0014] Select edible gelatin;

[0015] The selected edible gelatin is dissolved in water to form a gelatin solution;

[0016] Stir the gelatin solution;

[0017] The stirred gelatin solution is coated onto the inlet surface of the liquid guide component;

[0018] The liquid guiding component, after being coated with the gelatin solution, is dried to solidify and form the sealing film on the liquid inlet surface of the liquid guiding component;

[0019] The heating element is connected to the atomizing surface of the liquid guiding element.

[0020] In some embodiments, when edible gelatin is selected, the preparation method of the heating component further includes:

[0021] Select edible gelatin with a strength of 150-250 brumm;

[0022] In the process of dissolving the selected edible gelatin in water to form a gelatin solution, the preparation method of the heating component further includes:

[0023] The selected edible gelatin is dissolved in 100 parts by mass of water at a mass ratio of 5-20 to form the gelatin solution.

[0024] In some embodiments, during the process of dissolving the selected edible gelatin in 100 parts by weight of water at a mass ratio of 5-20 to form the gelatin solution, the preparation method of the heating component further includes:

[0025] Dissolve 1-5 parts by weight of plasticizer in the gelatin solution.

[0026] In some embodiments, the method for preparing the heating component further includes, during the process of dissolving 1-5 parts by weight of plasticizer in the gelatin solution:

[0027] The crosslinking agent and / or regulator are dissolved in the gelatin solution.

[0028] Some embodiments of this application also provide an aerosol generating device, including:

[0029] The heating assembly described in any of the above embodiments; and,

[0030] A power supply component, electrically connected to the heating component, wherein the power supply component supplies power to the heating component; and...

[0031] The housing, the heating component and the power supply component are both installed inside the housing.

[0032] According to the heating component in the above embodiments, by setting an edible gelatin sealing film on the liquid inlet surface of the liquid guide, the sealing film can solidify and seal the liquid guide hole when the heating component is not in operation, thus preventing the aerosol matrix from contacting the liquid guide and preventing problems such as leakage or over-wetting when the liquid guide is left stagnant for a long time. Furthermore, the sealing film can melt when the heating component is in operation, restoring the adsorption capacity of the liquid guide hole, allowing the heating component to heat the aerosol matrix on the atomization surface. Therefore, the edible gelatin sealing film can act as a heat-triggered switch on the liquid guide, enabling the liquid guide to actively control the liquid guiding process and achieve on-demand liquid guiding. Since edible gelatin is an edible natural protein, the melted edible gelatin does not produce substances harmful to the human body during the heating and atomization process of the heating component, thus ensuring the safety of users of the aerosol generation equipment. In addition, the sealing film attached to the liquid guide makes the sealing film and the liquid guide an integral part, without changing the original assembly process during production, thereby reducing the assembly difficulty of the heating component. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural schematic diagram of an aerosol generating device in one embodiment of this application.

[0034] Figure 2 for Figure 1 A cross-sectional schematic diagram of a medium-sized aerosol generator.

[0035] Figure 3 for Figure 2 A three-dimensional structural diagram of the heating component in an aerosol generator from one perspective.

[0036] Figure 4 for Figure 2 A three-dimensional structural diagram of the heating component in an aerosol generator from another perspective.

[0037] Figure 5 for Figure 3A three-dimensional structural diagram of the sealing membrane in the heating assembly when the liquid guiding hole is opened.

[0038] Figure 6 for Figure 5 A cross-sectional view of the heating component.

[0039] Figure 7 for Figure 2 A three-dimensional structural schematic diagram of another embodiment of the heating component in an aerosol generator.

[0040] Figure 8 For preparation Figure 3 Process flow diagram of the heating component.

[0041] in:

[0042] 1-Housing; 2-Power supply assembly; 3-Heating assembly; 31-Liquid guiding component; 32-Heating component; 33-Sealing membrane; 34-Atomizing surface; 35-Liquid guiding hole. Detailed Implementation

[0043] The present application will be further described in detail below with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0044] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary composition and / or order.

[0045] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0046] In existing technologies, aerosol generating equipment is often left stationary for extended periods during transportation, sale, or storage. Because the liquid guiding component remains in constant contact with the aerosol matrix, the pores on the component continuously absorb the aerosol matrix through capillary action, leading to problems such as leakage or over-wetting, thus affecting the user experience.

[0047] This application provides an aerosol generating device, such as... Figure 1 and Figure 2 As shown, the aerosol generator may include a housing 1, a power supply component 2, and a heating component 3. The power supply component 2 is electrically connected to the heating component 3 and is used to supply power to the heating component 3. Both the heating component 3 and the power supply component 2 are installed inside the housing 1.

[0048] Depending on the design of the aerosol generator, the housing 1 can be strip-shaped, column-shaped, or box-shaped. The structure of the housing 1 can be configured such that the top cover and the body are detachably connected, or that the left and right housings are detachably connected. Components such as supports or separators can also be installed inside the housing 1, allowing the power supply component 2 and the heating component 3 to be installed in different spaces. A liquid storage chamber can be formed inside the housing 1 by sealing it with the inner wall, or a separate liquid storage compartment with a liquid storage chamber can be provided inside the housing 1 to store the liquid aerosol matrix. Furthermore, a liquid storage device for storing the aerosol matrix can be installed inside the liquid storage chamber. This application does not impose any special restrictions on the specific structure of the housing 1.

[0049] The power supply component 2 may include a circuit board and a battery cell, with the circuit board electrically connected to the battery cell, allowing the battery cell to supply power to the heating component 3 via the circuit board. To enrich the functionality of the aerosol generator, the power supply component 2 may also include electronic components such as a controller, a charging interface, and a display screen, all of which are electrically connected to the circuit board. For example, the controller can be used to control the heating power of the heating component 3, the charging interface can be used to connect an external power source to charge the battery cell, and the display screen can be used to display data such as start / stop status, heating power, and remaining battery power. Alternatively, the heating component 3 may also be directly electrically connected to the battery cell via electrodes. This application does not impose any special limitations on the specific structure of the power supply component 2.

[0050] It is understood that the aerosol generator can be configured as a disposable product, i.e., the liquid storage chamber is fixedly installed inside the housing 1, and the power supply component 2 and the heating component 3 are fixedly connected. Alternatively, the aerosol generator can also be configured as a detachable product, i.e., the liquid storage chamber inside the housing 1 is replaceable, and the connection between the heating component 3 and the power supply component 2 can also be configured as a detachable structure, thereby allowing the aerosol generator to replace parts according to the user's needs. This application does not impose any special restrictions on the specific structural form of the aerosol generator.

[0051] To address the issue of continuous aerosol matrix adsorption during long-term static placement of the liquid guiding component, this application also provides a heating component 3, such as... Figures 3 to 6 As shown, the heating assembly 3 may include a liquid guiding component 31, a heating component 32, and a sealing membrane 33. The liquid guiding component 31 has a liquid inlet surface ( Figure 3 The aerosol matrix consists of an inlet surface covered by a sealing membrane 33, an atomizing surface 34, and a liquid guiding hole 35 connecting the inlet surface and the atomizing surface 34. The liquid guiding hole 35 is used to adsorb the liquid aerosol matrix from the inlet surface to the atomizing surface 34. A heating element 32 is connected to the atomizing surface 34 of the liquid guiding element 31. The heating element 32 is used to heat the aerosol matrix to generate aerosol. The sealing membrane 33 is disposed on the inlet surface. When the heating element 32 is not in operation, the sealing membrane 33 is solidified on the inlet surface to prevent the aerosol matrix from flowing into the liquid guiding hole 35. When the heating element 32 is in operation, the sealing membrane 33 is heated and melted, opening the liquid guiding hole 35 so that the aerosol matrix flows from the inlet surface to the atomizing surface 34. The components of the sealing membrane 33 may include edible gelatin.

[0052] When the aerosol generating equipment is being transported, sold, or stored, the heating element 32 is in a non-operating state. At this time, such as... Figure 3 As shown, the sealing film 33 is solidified and sealed on the inlet surface of the liquid guiding component 31, preventing the aerosol matrix from flowing into the liquid guiding hole 35. This prevents leakage or over-wetting of the liquid guiding component 31 due to continuous adsorption of the aerosol matrix by the liquid guiding hole 35 under capillary action. When the user uses the aerosol generation equipment, the heating element 32 is in working condition. At this time, as... Figure 5 and Figure 6 As shown, the heating element 32 generates heat. Part of this heat is transferred to the sealing membrane 33 via the liquid guide 31, and another part is transferred to the sealing membrane 33 via thermal radiation. Since the sealing membrane 33 contains edible gelatin, the melting of the gelatin upon heating opens the liquid guide hole 35, instantly restoring its adsorption capacity. This allows the aerosol matrix in the storage chamber to be adsorbed from the inlet surface to the atomizing surface 34, where it is heated to generate aerosol for user use. When the user stops using the aerosol generating equipment, as the liquid guide 31 cools, due to the thermal reversibility of the gelatin, any remaining melted gelatin can partially re-block the liquid guide hole 35 under capillary action, thus preventing the liquid guide 31 from at least partially flowing into the liquid guide hole 35. After multiple uses of the aerosol generating equipment, the residual edible gelatin can be completely removed.

[0053] This application provides a sealing film 33 made of edible gelatin on the inlet surface of the liquid guide 31. This sealing film 33 can solidify and seal the liquid guide hole 35 when the heating element 32 is not in operation, preventing contact between the aerosol matrix and the liquid guide 31. This prevents leakage or over-wetting of the liquid guide 31 during long-term static operation. Furthermore, the sealing film 33 can melt when the heating element 32 is in operation, restoring the adsorption capacity of the liquid guide hole 35, allowing the heating element 32 to heat the aerosol matrix on the atomization surface 34. Thus, the edible gelatin sealing film 33 acts as a thermal trigger switch on the liquid guide 31, enabling the liquid guide 31 to actively control the liquid guide process and achieve on-demand liquid guide functionality. Since edible gelatin is an edible natural protein, the melted edible gelatin does not produce harmful substances during the heating and atomization process of the heating element 32, ensuring the safety of users operating the aerosol generation equipment. In addition, the sealing film 33 is attached to the liquid guiding component 31, which makes the sealing film 33 and the liquid guiding component 31 form an integral part. The original assembly process will not be changed during the production process, thereby reducing the assembly difficulty of the heating component 3.

[0054] It is understandable that, such as Figures 3 to 6 As shown, the liquid guiding component 31 in this application can be configured as a block-shaped structure, with the liquid inlet surface and the atomizing surface 34 respectively disposed on opposite sides of the liquid guiding component 31. Alternatively, as... Figure 7 As shown, the liquid guiding component 31 can also be configured as a cylindrical structure, with its outer wall serving as the liquid inlet surface and its inner wall serving as the atomizing surface 34. A sealing membrane 33 is disposed on the outer wall of the liquid guiding component 31, and the heating element 32 is connected to the inner wall of the liquid guiding component 31. Similarly, the sealing membrane 33 can function as a thermal trigger switch on the liquid guiding component 31. The liquid guiding component 31 can be made of porous ceramic, liquid-guiding cotton, porous metal, or porous glass, among other materials. This application does not impose any special restrictions on the specific shape or material of the liquid guiding component 31.

[0055] Furthermore, depending on the different heating power designs of the aerosol generator, the heating element 32 can take the shape of a heating mesh or a heating plate, and the material of the heating element 32 can be a metal such as copper or nickel-chromium alloy. The heating element 32 and the liquid guiding element 31 can be connected by a sintering process, a metal paste printing process, or a sleeve connection. This application does not impose any special restrictions on the specific shape, material, or connection method between the heating element 32 and the liquid guiding element 31.

[0056] In some embodiments, the components of the sealing film 33 may further include a plasticizer, which may include one or more of glycerol, propylene glycol, sorbitol or xylitol, and the components of the sealing film 33 may include 85%-95% edible gelatin and 3%-10% plasticizer by weight percentage.

[0057] Edible gelatin is used as the aggregate of the sealing membrane 33, allowing the sealing membrane 33 to solidify and seal the liquid guiding hole 35 when the heating element 32 is not in operation, and to melt when heated in the operating state of the heating element 32, thereby restoring the adsorption capacity of the liquid guiding hole 35. However, when edible gelatin alone is used as the sealing membrane 33, its flexibility is poor and it is prone to cracking, resulting in an incomplete sealing effect of the liquid guiding hole 35.

[0058] To improve the sealing performance of the sealing membrane 33 in its solid state and ensure a tighter seal for the liquid guiding hole 35, a plasticizer can be added to the sealing membrane 33. This enhances the flexibility of the sealing membrane 33 and prevents it from cracking due to poor flexibility, which would reduce the sealing effect of the liquid guiding hole 35. The mass percentage of the plasticizer should be appropriately controlled within the range of 3%-10%. If the mass percentage of the plasticizer is less than 3%, the sealing membrane 33 will have poor flexibility and high brittleness, making it prone to cracking. If the mass percentage of the plasticizer is greater than 10%, the sealing membrane 33 will be too flexible, difficult to mold, and prone to flow, which will also reduce the sealing effect of the liquid guiding hole 35.

[0059] In some embodiments, the components of the sealing film 33 may further include a crosslinking agent, which may include one or more of natural polysaccharides, tannic acid, glutaraldehyde or genipin, and the components of the sealing film 33 may further include 0-3% of the crosslinking agent by mass percentage.

[0060] By adding a crosslinking agent to the sealing membrane 33, the melting temperature and thermal stability of the sealing membrane 33 can be improved, making it less prone to premature melting or even decomposition in high-temperature environments. This ensures that the sealing membrane 33 melts and opens the liquid inlet surface when the temperature of the heating element 32 rises to the operating temperature threshold (e.g., 50℃-70℃). The mass percentage of the crosslinking agent should not exceed 3% to avoid incomplete melting or even complete non-melting of the sealing membrane 33 when the temperature of the heating element 32 rises to the operating temperature, which could obstruct the flow of the aerosol matrix into the liquid guide hole 35.

[0061] In other embodiments, the melting temperature of the sealing film 33 can also be adjusted by selecting edible gelatin with different strengths and / or different mass percentage concentrations. That is, the melting temperature of the sealing film 33 can also be adjusted by the strength and / or concentration of the edible gelatin itself. Adding a crosslinking agent is not the only way to increase the melting temperature of the sealing film 33. This application does not impose any special limitations on the specific melting temperature of the sealing film 33 or on whether a crosslinking agent is added. Furthermore, natural polysaccharides may include one or more of agar, carrageenan, pectin, or xanthan gum. This application does not impose any special limitations on the specific types of natural polysaccharides.

[0062] In some embodiments, the components of the sealing film 33 may also include a modifier, which may include one or more of citric acid, lactic acid, malic acid or sodium bicarbonate, and the components of the sealing film 33 may also include 0-1% of the modifier by mass percentage.

[0063] The pH regulator can be used to adjust the pH value of the sealing film 33, thereby regulating the strength of the edible gelatin and the stability of the sealing film 33, preventing it from softening or dissolving prematurely in humid environments. Depending on factors such as the transportation method of the aerosol generator, the sales region, and storage conditions, different regulators can be selected to adjust different target pH values. For example, malic acid can be used to lower the pH value, while sodium bicarbonate can be used to raise the pH value. Furthermore, the mass percentage of the regulator should not exceed 1% to avoid inaccurate pH adjustment of the sealing film 33 due to excessive amounts. This application does not impose any special restrictions on whether a regulator is added to the sealing film 33.

[0064] In some embodiments, the components of the sealing film 33 may also include auxiliary agents, which may include one or more of antioxidants or humectants, and the components of the sealing film 33 may also include 0-2% of auxiliary agents by mass percentage.

[0065] The auxiliary agents can be used to ensure that the sealing membrane 33 does not undergo severe deterioration during long-term static storage of the aerosol generator. For example, antioxidants can prevent the sealing membrane 33 from oxidizing and deteriorating, while humectants can prevent the sealing membrane 33 from losing water, hardening, or clumping due to moisture. The mass percentage of the auxiliary agent should not exceed 2% to avoid performance degradation of the sealing membrane 33 due to excessive amounts. In other embodiments, other auxiliary agents may be added to the sealing membrane 33. This application does not impose specific limitations on whether or not auxiliary agents are added to the sealing membrane 33 or on the specific types of auxiliary agents.

[0066] In some embodiments, the thickness of the sealing film 33 can be set to 10um-50um.

[0067] When considering the thickness of the sealing membrane 33, it must be neither too thin nor too thick. If the thickness of the sealing membrane 33 is less than 10 μm, its structural strength will be low, making it prone to rupture and reducing the sealing effect of the liquid guiding hole 35. If the thickness of the sealing membrane 33 is greater than 50 μm, it will be too thick, and the sealing membrane 33 may not completely melt when the temperature of the heating element 32 rises, easily causing blockage of the liquid guiding hole 35. Therefore, the thickness of the sealing membrane 33 is controlled within the range of 10 μm to 50 μm, ensuring structural strength while allowing it to melt rapidly and open the liquid inlet surface when the temperature of the heating element 32 rises to the operating temperature. This application does not impose any special restrictions on the specific thickness of the sealing membrane 33.

[0068] The above embodiments provide a detailed description of the specific structure of the heating component 3 and the components of the sealing film 33 during curing. To prepare the heating component 3 in the above embodiments, this application also provides a method for preparing the heating component 3, such as... Figure 8 As shown in the following embodiments, the preparation method of heating component 3 will be described in detail.

[0069] The preparation method of heating component 3 may include selecting edible gelatin.

[0070] When selecting edible gelatin, Bloom strength is an international standard indicator for measuring the strength and elasticity of the gel formed by edible gelatin. Depending on the different designs of the heating power of the heating element 32, by selecting edible gelatin with different Bloom strengths, the sealed film 33 after film formation can have different properties such as toughness, melting temperature, and stability.

[0071] The selected edible gelatin is dissolved in water to form a gelatin solution.

[0072] By dissolving edible gelatin in water with different mass fractions, gelatin solutions of varying concentrations can be achieved. These different concentrations of gelatin solutions can affect the melting temperature and stability of the sealing film 33 after film formation. Deionized water can be used as the solvent for the gelatin solution to ensure its stable and predictable performance.

[0073] Stir the gelatin solution.

[0074] During stirring, the temperature of the gelatin solution should be controlled between 35℃ and 45℃ to prevent incomplete dissolution of the edible gelatin due to excessively low temperature, or to avoid the gel properties of the gel being destroyed due to excessively high temperature.

[0075] The stirred gelatin solution is coated onto the inlet surface of the liquid guide 31.

[0076] Depending on factors such as the shape, material, and porosity of the liquid guiding component 31, the gelatin solution can be applied using methods such as spraying, dipping, or scraping. Furthermore, the liquid inlet surface of the liquid guiding component 31 must be kept clean and dry to avoid impurities affecting the film formation of the sealing membrane 33. In addition, the application time and number of applications can be adjusted accordingly depending on the gelatin solution application method.

[0077] The liquid guiding component 31 coated with gelatin solution is dried to solidify and form a sealing film 33 on the liquid inlet surface of the liquid guiding component 31.

[0078] The drying process can include, but is not limited to, air drying or baking. For example, when using air drying, the temperature should be controlled between 15℃ and 25℃, and the relative humidity should be controlled below 30% to ensure that the sealing film 33 can form a stable and rapid film on the liquid inlet surface of the liquid guide 31. In addition, the drying time may vary depending on the drying method.

[0079] The heating element 32 is connected to the atomizing surface 34 of the liquid guiding element 31.

[0080] Depending on the connection method of the heating element 32, the process sequence of connecting the heating element 32 to the atomizing surface 34 of the liquid guiding element 31 can vary. For example, when the heating element 32 is connected to the atomizing surface 34 of the liquid guiding element 31 via a sintering process or a metal paste printing process, the heating element 32 can be connected to the atomizing surface 34 of the liquid guiding element 31 before the sealing film 33 is formed, to avoid adverse effects on the sealed film 33 after film formation during the process. Alternatively, when the heating element 32 is sleeved onto the atomizing surface 34 of the liquid guiding element 31, the heating element 32 can be connected to the atomizing surface 34 of the liquid guiding element 31 either before or after the sealing film 33 is formed.

[0081] This application utilizes the aforementioned preparation method to allow edible gelatin to adhere to the inlet surface of the liquid guide 31 in the form of a gelatin solution, enabling the sealing film 33 to be formed on inlet surfaces of different shapes on the liquid guide 31. Once the sealing film 33 has solidified, it can tightly seal the liquid guide holes 35 on the inlet surface, thus avoiding the problem of reduced sealing effect due to insufficient coverage of the inlet surface. Furthermore, connecting the heating element 32 to the atomizing surface 34 of the liquid guide 31 not only allows the sealing film 33 to melt under the heating action of the heating element 32, opening the liquid guide holes 35 on the inlet surface to adsorb the aerosol matrix, but also allows the liquid guide 31, heating element 32, and sealing film 33 to be formed into a single heating assembly 3. This ensures that the original assembly process is not altered during the production of the aerosol generator, reducing the assembly difficulty of the heating assembly 3.

[0082] In some embodiments, when edible gelatin is selected, the preparation method of the heating component 3 may also include selecting edible gelatin with a strength of 150-250 brumm.

[0083] In the process of dissolving the selected edible gelatin in water to form a gelatin solution, the preparation method of the heating component 3 may also include dissolving the selected edible gelatin in 5-20 parts by mass of 100 parts by mass of water to form a gelatin solution.

[0084] By selecting edible gelatin with a strength of 150-250 Bloom and a gelatin solution with a mass concentration of 5%-20%, the sealed film 33 after curing can have an edible gelatin mass percentage of 85%-95%. Simultaneously, the melting temperature of the sealed film 33 can be controlled between 50℃ and 70℃, and the sealed film 33 is more dense, which is beneficial to improving the sealing performance of the sealed film 33. In other embodiments, depending on the different designs of the heating power of the heating element 32, edible gelatin with a strength lower than 150 Bloom and a gelatin solution with a mass concentration higher than 20% can also be selected. Alternatively, edible gelatin with a strength higher than 250 Bloom and a gelatin solution with a mass concentration lower than 5% can be selected, thereby adjusting the melting temperature and sealing performance of the sealed film 33 after film formation. This application does not impose special limitations on the strength of the edible gelatin or the concentration of the gelatin solution.

[0085] In some embodiments, during the process of dissolving 5-20 parts by weight of edible gelatin in 100 parts by weight of water to form a gelatin solution, the preparation method of the heating component 3 may further include dissolving 1-5 parts by weight of plasticizer in the gelatin solution.

[0086] By adding 1%-5% by mass of plasticizer to the gelatin solution, the cured sealing film 33 can have a plasticizer mass percentage of 3%-10%, thereby enhancing the flexibility of the cured sealing film 33 and preventing cracking due to poor flexibility, which would reduce the sealing effect of the liquid guiding hole 35. In other embodiments, the mass concentration of plasticizer can be adjusted adaptively depending on the type of plasticizer selected. This application does not impose any special limitations on the specific type and mass concentration of plasticizer.

[0087] In some embodiments, during the process of dissolving 1-5 parts by weight of plasticizer in a gelatin solution, the method for preparing the heating component 3 may further include dissolving a crosslinking agent and / or a modifier in a gelatin solution.

[0088] Adding a crosslinking agent to the gelatin solution can also improve the melting temperature and thermal stability of the sealing film 33. Whether to add a crosslinking agent can be determined by considering the strength of the edible gelatin and the concentration of the gelatin solution. Adding a regulator to the gelatin solution can improve the stability of the sealing film 33 in humid environments. Whether to add a regulator can be determined by considering factors such as the transportation method of the aerosol generator, the sales region, and storage conditions. This application does not impose any special restrictions on whether to add crosslinking agents and / or regulators.

[0089] The above embodiments provide a detailed description of the fabrication process of the heating component 3. To better illustrate the effect of the heating component 3 in actively controlling liquid conduction, the following embodiments will provide a detailed explanation of the test results of the heating component 3 under different fabrication process parameters.

[0090] Example 1

[0091] Edible gelatin with a Bloom strength of 150 was selected and dissolved in deionized water at a concentration of 5% by mass to form a gelatin solution. Glycerin at a concentration of 1% by mass was added to the gelatin solution, and the solution was stirred at a constant temperature of 45°C until completely dissolved. The inlet surface of a blocky porous ceramic liquid guide 31 with a porosity of 55% was immersed in the gelatin solution for 2 seconds and then pulled out at a uniform speed. It was then placed in an environment with a temperature of 25°C and a relative humidity of <30% to air dry for 24 hours, ultimately forming a sealing film 33 with a thickness of 10µm-15µm on the inlet surface of the blocky porous ceramic liquid guide 31. The sealing film 33 contained 85% edible gelatin by mass, 3% glycerin by mass, and the remainder were auxiliary agents.

[0092] Test results: No leakage was observed when the prepared heating component 3 was placed on its side at 25℃ for 5 days. When the prepared heating component 3 was placed on a heating platform at 60℃, the sealing film 33 completely melted within 5-7 seconds, and the liquid guiding component 31 returned to normal liquid guiding function, allowing for normal heating and atomization.

[0093] The heating component 3 prepared in this embodiment can achieve the basic functions of "room temperature sealing and thermal conduction", but the mechanical strength and sealing durability of the sealing film 33 are relatively weak.

[0094] Example 2

[0095] The difference from Example 1 is that Example 2 only changes the strength of the edible gelatin.

[0096] Edible gelatin with a Bloom strength of 200 was selected and dissolved in deionized water at a concentration of 5% by mass to form a gelatin solution. Glycerin at a concentration of 1% by mass was added to the gelatin solution, and the solution was stirred at a constant temperature of 45°C until completely dissolved. The inlet surface of a blocky porous ceramic liquid guide 31 with a porosity of 55% was immersed in the gelatin solution for 2 seconds and then pulled out at a uniform speed. It was then placed in an environment with a temperature of 25°C and a relative humidity of <30% to air dry for 24 hours, ultimately forming a sealing film 33 with a thickness of 10µm-15µm on the inlet surface of the blocky porous ceramic liquid guide 31. The sealing film 33 contained 85% edible gelatin by mass, 3% glycerin by mass, and the remainder were auxiliary agents.

[0097] Test results: No leakage was observed when the prepared heating component 3 was placed on its side at 25℃ for 5 days. When the prepared heating component 3 was placed on a heating platform at 60℃, the sealing film 33 completely melted within 6-8 seconds, and the liquid guiding component 31 returned to normal liquid guiding function, allowing for normal heating and atomization.

[0098] Compared with Example 1, the heating component 3 prepared in Example 2 increased the toughness of the sealing film 33 and improved the sealing performance by increasing the strength of the edible gelatin to 200 Bloom, but the melting time of the sealing film 33 was slower.

[0099] Example 3

[0100] Edible gelatin with a Bloom strength of 220 was selected and dissolved in deionized water at a mass concentration of 10% to form a gelatin solution. Glycerin at a mass concentration of 3% was added to the gelatin solution, and the solution was stirred at a constant temperature of 40°C until completely dissolved. The inlet surface of a blocky porous ceramic liquid guide 31 with a porosity of 55% was immersed in the gelatin solution for 3 seconds and then uniformly pulled out. It was then placed in an environment with a temperature of 20°C and a relative humidity of <30% to air dry for 12 hours, ultimately forming a sealing film 33 with a thickness of 20µm-30µm on the inlet surface of the blocky porous ceramic liquid guide 31. The sealing film 33 contained 95% edible gelatin by mass, 3% glycerin by mass, and the remainder were auxiliary agents.

[0101] Test results: The prepared heating component 3 was placed on its side at 25°C for 7 days without any leakage. When the prepared heating component 3 was placed on a heating platform at 60°C, the sealing film 33 completely melted within 3-5 seconds, and the liquid guiding component 31 returned to normal liquid guiding function, allowing for normal heating and atomization.

[0102] Example 3 significantly improved the sealing performance of the sealing film 33 during curing by changing the strength and mass concentration of the edible gelatin, the mass concentration of the plasticizer, the stirring temperature, the immersion time of the liquid guide 31 in the gelatin solution, and the air-drying temperature and time. It also shortened the melting time of the sealing film 33 and increased its thermal response speed, achieving a balance point for optimizing various parameters of the heating component 3. Furthermore, the air-drying time required in Example 3 was reduced from 24 hours to 12 hours, which helps improve the preparation efficiency of the heating component 3.

[0103] Example 4

[0104] The difference from Example 3 is that Example 4 only changes the mass concentration of the gelatin solution.

[0105] Edible gelatin with a Bloom strength of 220 was selected and dissolved in deionized water at a mass concentration of 15% to form a gelatin solution. Glycerin at a mass concentration of 3% was added to the gelatin solution, and the solution was stirred at a constant temperature of 40°C until completely dissolved. The inlet surface of a blocky porous ceramic liquid guide 31 with a porosity of 55% was immersed in the gelatin solution for 3 seconds and then uniformly pulled out. It was then placed in an environment with a temperature of 20°C and a relative humidity of <30% to air dry for 12 hours, ultimately forming a sealing film 33 with a thickness of 20µm-30µm on the inlet surface of the blocky porous ceramic liquid guide 31. The sealing film 33 contained 95% edible gelatin by mass, 3% glycerin by mass, and the remainder were auxiliary agents.

[0106] Test results: The prepared heating component 3 was placed on its side at 25°C for 7 days without any leakage. When the prepared heating component 3 was placed on a heating platform at 60°C, the sealing film 33 completely melted within 4-6 seconds, and the liquid guiding component 31 returned to normal liquid guiding function, allowing for normal heating and atomization.

[0107] Compared with Example 3, the heating component 3 prepared in Example 4, by increasing the mass concentration of the gelatin solution to 15%, showed that the sealing film 33 was denser and the sealing performance was improved, but the melting time of the sealing film 33 was slightly increased.

[0108] Example 5

[0109] The difference from Example 3 is that in Example 5, natural polysaccharides are added to the sealing film 33.

[0110] Edible gelatin with a Bloom strength of 220 was selected and dissolved in deionized water at a mass concentration of 10% to form a gelatin solution. 3% glycerol and 2% natural polysaccharide were added to the gelatin solution, and the solution was stirred at a constant temperature of 40°C until completely dissolved. The inlet surface of a blocky porous ceramic liquid guide 31 with a porosity of 55% was immersed in the gelatin solution for 3 seconds and then uniformly pulled out. It was then placed in an environment with a temperature of 20°C and a relative humidity of <30% to air dry for 12 hours, ultimately forming a sealing film 33 with a thickness of 20-30 μm on the inlet surface of the blocky porous ceramic liquid guide 31. The sealing film 33 contained 93% edible gelatin, 3% glycerol, 2% natural polysaccharide, and the remainder were auxiliary agents.

[0111] Test results: The prepared heating component 3 was placed on its side at 25°C for 7 days without any leakage. When the prepared heating component 3 was placed on a heating platform at 60°C, the sealing film 33 completely melted within 5-8 seconds, and the liquid guiding component 31 returned to normal liquid guiding function, allowing for normal heating and atomization.

[0112] Compared with Example 3, the heating component 3 prepared in Example 5 has higher thermal stability of the sealing film 33 in a high-temperature environment by adding natural polysaccharides as crosslinking agents to the gelatin solution, but this also results in a slower melting time of the sealing film 33 than in Example 4.

[0113] Example 6

[0114] The difference from Example 3 is that citric acid was added to the sealing film 33 in Example 6.

[0115] Edible gelatin with a Bloom strength of 220 was selected and dissolved in deionized water at a mass concentration of 10% to form a gelatin solution. Glycerin at a mass concentration of 3% and citric acid at a mass concentration of 0.5% were added to the gelatin solution, and the solution was stirred at a constant temperature of 40°C until completely dissolved. The inlet surface of a blocky porous ceramic liquid guide 31 with a porosity of 55% was immersed in the gelatin solution for 3 seconds and then uniformly pulled out. It was then placed in an environment with a temperature of 20°C and a relative humidity of <30% to air dry for 12 hours, ultimately forming a sealing film 33 with a thickness of 20µm-30µm on the inlet surface of the blocky porous ceramic liquid guide 31. The sealing film 33 contained 94.5% edible gelatin, 3% glycerin, 0.5% citric acid, and the remainder were auxiliary agents.

[0116] Test results: The prepared heating component 3 was placed on its side at 25°C for 7 days without any leakage. When the prepared heating component 3 was placed on a heating platform at 60°C, the sealing film 33 completely melted within 3-5 seconds, and the liquid guiding component 31 returned to normal liquid guiding function, allowing for normal heating and atomization.

[0117] Compared with Example 3, the heating component 3 prepared in Example 6 has higher stability because citric acid is added to the gelatin solution as a regulator, making the sealing film 33 less prone to softening in a humid environment. At the same time, it also maintains the advantage of fast thermal response.

[0118] Example 7

[0119] Edible gelatin with a Bloom strength of 250 was selected and dissolved in deionized water at a concentration of 20% by mass to form a gelatin solution. Glycerin at a concentration of 5% by mass was added to the gelatin solution, and the solution was stirred at a constant temperature of 35°C until completely dissolved. The inlet surface of a blocky porous ceramic liquid guide 31 with a porosity of 55% was immersed in the gelatin solution for 5 seconds and then pulled out at a uniform speed. It was then placed in an environment with a temperature of 15°C and a relative humidity of <30% to air dry for 36 hours, ultimately forming a sealing film 33 with a thickness of 40-50 μm on the inlet surface of the blocky porous ceramic liquid guide 31. The sealing film 33 contained 95% edible gelatin by mass, 5% glycerin by mass, and the remainder were auxiliary agents.

[0120] Test results: The prepared heating component 3 was placed on its side at 25°C for 10 days without any leakage. When the prepared heating component 3 was placed on a heating platform at 60°C, the sealing film 33 completely melted within 6-9 seconds, and the liquid guiding component 31 returned to normal liquid guiding function, allowing for normal heating and atomization.

[0121] Example 7, by further increasing the strength and mass concentration of edible gelatin, increasing the mass concentration of plasticizer, lowering the stirring temperature, extending the immersion time of the liquid guide 31 in the gelatin solution, lowering the drying temperature, and extending the drying time, significantly improved the sealing reliability of the sealing film 33 during curing. However, it also significantly increased the melting time of the sealing film 33, and the melting time of different sealing films 33 was not very stable. In addition, the drying time required in Example 7 was 36 hours, resulting in a decrease in the preparation efficiency of the heating component 3.

[0122] Example 8

[0123] The difference from Example 7 is that Example 8 only changes the mass concentration of glycerol.

[0124] Edible gelatin with a Bloom strength of 250 was selected and dissolved in deionized water at a concentration of 20% by mass to form a gelatin solution. Glycerin at a concentration of 1% by mass was added to the gelatin solution, and the solution was stirred at a constant temperature of 35°C until completely dissolved. The inlet surface of a blocky porous ceramic liquid guide 31 with a porosity of 55% was immersed in the gelatin solution for 5 seconds and then pulled out at a uniform speed. It was then air-dried in an environment with a temperature of 15°C and a relative humidity of <30% for 36 hours, ultimately forming a sealing film 33 with a thickness of 40-50 μm on the inlet surface of the blocky porous ceramic liquid guide 31. The sealing film 33 contained 95% edible gelatin by mass, 1% glycerin by mass, and the remainder were auxiliary agents.

[0125] Test results: The prepared heating component 3 was placed on its side at 25°C for 10 days without any leakage. When the prepared heating component 3 was placed on a heating platform at 60°C, the sealing film 33 completely melted within 8-12 seconds, and the liquid guiding component 31 returned to normal liquid guiding function, allowing for normal heating and atomization.

[0126] Example 8 reduces the mass concentration of glycerol, thereby decreasing the flexibility of the sealing film 33, making it prone to microcracks and reducing long-term sealing reliability. Simultaneously, the melting time of the sealing film 33 is longer and more unstable.

[0127] The above embodiment uses a blocky porous ceramic with a porosity of 55% as the liquid guiding component 31, glycerol as the plasticizer, natural polysaccharide as the crosslinking agent, and citric acid as the regulator as an example for illustration. In other embodiments, other porosities or materials can be selected as the liquid guiding component 31, and other types of substances can be selected as the plasticizer, crosslinking agent, and regulator. When preparing the heating component 3, the specific amounts of plasticizer, crosslinking agent, and regulator, as well as the preparation process parameters, can be adjusted adaptively. This application does not impose any special limitations in this regard.

[0128] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A heating assembly, characterized in that, include: A liquid guiding component has a liquid inlet surface, an atomizing surface, and a liquid guiding hole connecting the liquid inlet surface and the atomizing surface. The liquid guiding hole is used to adsorb liquid aerosol matrix from the liquid inlet surface to the atomizing surface. A heating element, connected to the atomizing surface of the liquid guiding element, is used to heat the aerosol matrix to generate an aerosol; and, A sealing membrane is disposed on the liquid inlet surface. When the heating element is not in operation, the sealing membrane is solidified on the liquid inlet surface to prevent the aerosol matrix from flowing into the liquid guiding hole. When the heating element is in operation, the sealing membrane is heated and melted, opening the liquid guiding hole so that the aerosol matrix flows from the liquid inlet surface to the atomizing surface. The sealing film comprises edible gelatin.

2. The heating assembly as described in claim 1, characterized in that, The sealing film also includes a plasticizer, which includes one or more of glycerin, propylene glycol, sorbitol or xylitol, and the sealing film comprises 85%-95% of the edible gelatin and 3%-10% of the plasticizer by weight percentage.

3. The heating assembly as described in claim 2, characterized in that, The sealing film also includes a crosslinking agent, which includes one or more of natural polysaccharides, tannic acid, glutaraldehyde, or genipin. The sealing film also includes 0-3% of the crosslinking agent by mass percentage.

4. The heating assembly as described in claim 2, characterized in that, The sealing film also includes a modifier, which includes one or more of citric acid, lactic acid, malic acid or sodium bicarbonate, and the sealing film also includes 0-1% of the modifier by mass percentage.

5. The heating assembly as described in any one of claims 1 to 4, characterized in that, The thickness of the sealing film is 10um-50um.

6. A method for preparing a heating component, characterized in that, The method for preparing the heating assembly according to any one of claims 1 to 5 includes: Select edible gelatin; The selected edible gelatin is dissolved in water to form a gelatin solution; Stir the gelatin solution; The stirred gelatin solution is coated onto the inlet surface of the liquid guide; The liquid guiding component, after being coated with the gelatin solution, is dried to solidify and form the sealing film on the liquid inlet surface of the liquid guiding component; The heating element is connected to the atomizing surface of the liquid guiding element.

7. The method for preparing the heating component as described in claim 6, characterized in that, When edible gelatin is selected, the preparation method of the heating component further includes: Select edible gelatin with a strength of 150-250 brumm; In the process of dissolving the selected edible gelatin in water to form a gelatin solution, the preparation method of the heating component further includes: The selected edible gelatin is dissolved in 100 parts by mass of water at a mass ratio of 5-20 to form the gelatin solution.

8. The method for preparing the heating component as described in claim 7, characterized in that, In the process of dissolving the selected edible gelatin in 100 parts by weight of water at a mass ratio of 5-20 to form the gelatin solution, the preparation method of the heating component further includes: Dissolve 1-5 parts by weight of plasticizer in the gelatin solution.

9. The method for preparing the heating component as described in claim 8, characterized in that, The method for preparing the heating component further includes the process of dissolving 1-5 parts by weight of plasticizer in the gelatin solution: The crosslinking agent and / or regulator are dissolved in the gelatin solution.

10. An aerosol generating device, characterized in that, include: The heating assembly according to any one of claims 1 to 5; A power supply component is electrically connected to the heating component, and the power supply component is used to supply power to the heating component; as well as, The housing, the heating component and the power supply component are both installed inside the housing.

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