An atomization heating module, an electronic cigarette cartridge and an electronic cigarette thereof

Abstract

An atomization heating module, characterized in that it comprises at least a liquid absorbing functional component 10, a heating functional component 20, a gas pressure regulating functional component 30 and a sleeve 40; the liquid absorbing functional component 10 is a fiber aggregation structure, the heating functional component 20 is a metal mesh structure with a pin, the gas pressure regulating functional component 30 is a micro-porous silica gel structure, and the surface of the sleeve 40 has an opening and groove structure. The atomization heating module is applied to the field of electronic cigarettes and has the characteristics of good atomization effect, good gas pressure regulating performance, high taste restoration degree, no paste and no leakage, safety and environmental protection, strong adaptability and the like.

Description

Technical Field

[0001] This invention relates to an atomizing heating module, an electronic cigarette cartridge, and an electronic cigarette, which are applied in the field of electronic cigarettes. Background Technology

[0002] E-cigarettes are products that heat and atomize e-liquid into vapor for users to inhale. Because the composition of e-liquid can be controlled, it offers the potential to aid in smoking cessation to some extent, leading to a year-on-year expansion of the market. The part of an e-cigarette that stores e-liquid is called the e-liquid tank. There are two types of e-liquid tank structures: the first uses a porous fiber material to lock in the e-liquid, and the second is a visible e-liquid tank structure, also known as a cartridge structure, where the e-liquid is stored directly as a liquid. The first type, the fiber material structure, is a more mature and mainstream technology. Its advantage is that the fiber material restricts the flow of e-liquid, making it less prone to leakage. However, its disadvantages include the user not being able to observe the remaining e-liquid, and the potential for residue buildup in the fiber material, leading to waste. Furthermore, in the later stages of use, as e-liquid is consumed, the e-liquid conduction speed slows down, resulting in significant flavor degradation. The cartridge structure effectively avoids these problems.

[0003] However, in the cartridge structure, e-liquid is stored in liquid form. Due to its semi-sealed structure, if the internal air pressure of the cartridge is higher than the external air pressure, e-liquid leakage is likely to occur. Conversely, if the external air pressure is higher than the internal air pressure, insufficient or uneven e-liquid supply to the atomizer coil can easily occur, leading to a poorer flavor or even burnt e-liquid. Therefore, preventing e-liquid leakage and regulating air pressure are urgent technical challenges that need to be solved in the e-cigarette industry.

[0004] For example, Chinese patent CN112971215A discloses a leak-proof e-cigarette cartridge. It uses perforated silicone with an inlet and a blocking position. When the user stops smoking and the e-liquid cup contains e-liquid, rotating the atomizer coil blocks the inlet hole, preventing leakage. When the user starts smoking again, the silicone is moved to the inlet position, allowing e-liquid to enter the heating coil for atomization. This method solves the persistent problem of e-cigarette leakage, but it still cannot regulate the internal air pressure of the e-cigarette, resulting in insufficient e-liquid supply, inconsistent flavor, and a tendency for the coil to burn. Summary of the Invention

[0005] The purpose of this invention is to provide an atomizing heating module that has good atomization effect, high taste reproduction, no oil leakage, and also has air pressure regulation function, and is safe and environmentally friendly.

[0006] The technical solution of the present invention is as follows: The aforementioned atomizing heating module includes at least a liquid absorption component 10, a heating component 20, a pressure regulating component 30, and a sleeve 40; the liquid absorption component 10 is a fiber aggregate structure, the heating component 20 is a metal mesh structure with leads, the pressure regulating component 30 is a microporous silica gel structure, and the sleeve 40 is a metal or plastic structure with openings and grooves on its surface.

[0007] In the aforementioned atomizing heating module, the liquid absorption component 10 is a cellulose fiber aggregate structure.

[0008] In the aforementioned atomizing heating module, the total surface area of ​​the metal mesh structure of the heating functional component 20 is 0.05–1.00 cm². 2 .

[0009] In the aforementioned atomizing heating module, the air pressure regulating component 30 microporous inorganic silica gel has a Shore hardness of 10 to 60 HD.

[0010] In the aforementioned atomizing heating module, the thickness of the contact portion 50 between the air pressure regulating component 30 and the upper end face of the groove of the sleeve 40 is 0.1–1.0 mm.

[0011] The microporous silica gel in the above-mentioned atomizing heating module is characterized in that the average diameter of the micropores is 0.5 to 10 nm.

[0012] The microporous silica gel described in the aforementioned atomizing heating module is characterized by its volume resistivity being 10 Ω·cm. 11 ~10 14 Ohms / cm.

[0013] In the aforementioned atomizing heating module, the inner diameter of the sleeve 40 is between 2 and 15 mm.

[0014] In the aforementioned atomizing heating module, the length of the sleeve 40 is 5 to 50 mm.

[0015] The aforementioned atomizing heating module, wherein the sleeve 40 has 1 to 16 openings and 1 to 16 slots, wherein the total opening area is 1 to 20 mm². 2 The total slotted cross-sectional area is 0.03–1.00 mm². 2 Furthermore, the slotted portion is fully or partially covered by the air pressure regulating function component 30.

[0016] The beneficial effects of this invention are: The atomizing heating module of this invention features fast liquid conduction, excellent atomization effect, high flavor fidelity, and also has an air pressure regulation function. The product is leak-proof, does not burn out, and is safe and environmentally friendly. Furthermore, this heating module can replace the atomizing core products currently used on the market and is compatible with any e-cigarette cartridge structure. E-cigarette cartridge products equipped with the atomizing heating module of this invention do not require additional openings or sealing components in the cartridge body to maintain suitable air pressure, while avoiding problems such as leaks and burnt cores. Detailed Implementation

[0017] The atomizing heating module of the present invention includes a liquid absorption component 10, a heating component 20, an air pressure regulating component 30, and a sleeve 40. The liquid absorption component 10 is a fiber aggregate structure, the heating component 20 is a metal mesh structure with leads, the air pressure regulating component 30 is a microporous silica gel structure, and the sleeve 40 is a metal or plastic structure with openings and grooves on its surface. The atomizing heating module of the present invention has the functions of guiding and absorbing liquid and atomizing e-liquid, and also has the function of regulating the internal air pressure of the e-cigarette cartridge. In the past, the internal air pressure regulation in the field of e-cigarette cartridges required a special ventilation hole, or ventilation valve or ventilation switch on the cartridge to ensure that the cartridge had a suitable air pressure difference during use. However, regulating the air pressure through a specially designed ventilation device is complex in terms of processing and assembly, and because there are many small structural components in the cartridge, it is easy to cause structural instability, leading to problems such as oil leakage and core clogging. This invention improves the original atomizing core by upgrading the individual atomizing core into an atomizing module, so that a single module has both atomization and air pressure regulation functions, which greatly simplifies the structure of the e-cigarette cartridge, reduces costs, and avoids problems such as product leakage and burnt core.

[0018] The liquid-absorbing functional component 10 of the present invention has a fiber aggregation structure. This structure allows for the formation of numerous capillaries and liquid-absorbing pores between the fibers, significantly enhancing the liquid-guiding and liquid-absorbing function. The fiber aggregation structure can be woven fabric, knitted fabric, dry-laid nonwoven fabric, wet-laid nonwoven fabric, or other types of fiber entanglement or bonding structures. Since the liquid-absorbing functional component 10 must possess uniform and stable liquid-guiding and liquid-carrying functions, the liquid-absorbing functional component 10 of the present invention preferably has an isotropic nonwoven fiber aggregation structure. Specifically, it can be a dry-laid, wet-laid, or polymer-directly web-formed nonwoven fabric. Since polymer-directly web-formed nonwoven fabrics are mostly synthetic fibers, dry-laid or wet-laid nonwoven fabrics are more preferred.

[0019] The heating component 20 of this invention is a metal mesh structure with pins. These pins transmit power to the heating component. Compared to a spiral wire structure, the metal mesh structure can uniformly heat the liquid absorption component, resulting in more uniform atomization and better flavor. Furthermore, compared to a metal sheet structure, the metal mesh structure allows the atomized aerosol to more easily pass through the heating component and enter the vapor channel, reducing the likelihood of condensation and backflow. In addition, the overall resistance of the metal mesh structure is between 0.8 and 1.4 ohms. If the resistance is too high, the power will be too low under constant voltage, leading to insufficient atomization temperature and incomplete atomization. If the resistance is too low, the power will be too high under constant voltage, resulting in excessively high atomization temperature and the potential for high-temperature decomposition of e-liquid and burnt coils.

[0020] The air pressure regulating component 30 of this invention has a microporous silica gel structure. Silica gel is a soft, amorphous material with strong adsorption capacity. It is insoluble in most solvents, including water, and has stable chemical properties. Depending on the manufacturing process, silica gel materials can form microporous structures of different levels, making them easy to have strong adsorption and sealing capabilities, good thermal stability, and high mechanical strength, making them very suitable for use in the field of electronic cigarette materials. Furthermore, the hardness of the silica gel can be adjusted. Silica gel materials with moderate hardness can deform according to changes in air pressure. This deformation can regulate the air pressure inside the entire cartridge, thereby maintaining an appropriate internal air pressure and ensuring that e-liquid does not leak or burn the coil.

[0021] During use, the e-liquid in the cartridge is constantly consumed, and there is a high-temperature evaporation and atomization process. Both the reduction of e-liquid and the temperature changes will affect the air pressure inside the cartridge. For the cartridge to provide a stable supply of e-liquid without leakage, a stable internal and external air pressure difference is necessary. Maintaining a stable internal and external air pressure difference is crucial, and the air pressure regulation component is essential. However, relying solely on the air pressure regulation component to regulate air pressure has certain instability issues. Therefore, the atomization and heating component of this invention is also equipped with a metal or plastic sleeve 40 with openings and grooves on its surface. The opening portion 60 of the sleeve can supply e-liquid to the liquid absorption component, while the grooved portion 70 of the sleeve can cooperate with the air pressure regulation component 30 to form a stable air supply channel, thus providing air pressure regulation functionality. When the e-liquid is consumed or other reasons cause the internal air pressure of the cartridge to be too low, the air pressure regulating component 30 will undergo slight deformation to force the air in the sleeve groove portion 70 into the cartridge, thereby achieving the purpose of adjusting the air pressure. At the same time, if the internal air pressure of the cartridge is greater than the external air pressure, the internal air pressure will press the air pressure regulating component 30 to seal the groove portion 70 of the sleeve 40, thereby achieving a sealing effect.

[0022] It's also important to note that the internal air pressure of the cartridge described here includes the pressure generated by the weight of the e-liquid itself. This means that when the air pressure inside and outside the cartridge reaches equilibrium, the internal air pressure is actually slightly lower than the external air pressure. The excess external air pressure balances the weight of the e-liquid, effectively preventing leakage. In the atomizing heating module of this invention, the air pressure regulating component 30 can be a single silicate gel component or a combination of multiple silicate gel components. To ensure the overall stability of the atomizing module and reduce the probability of leakage, the silicate gel component 30 of the air pressure regulating component 30 of this invention is preferably a single component.

[0023] The atomizing heating module of this invention features a liquid-absorbing component 10, which is a cellulose fiber aggregate structure. Compared to commercially available ceramic core products, cellulose fibers have a large number of hydroxyl groups on their surface, resulting in excellent oil and water absorption properties. Furthermore, cellulose fibers, such as cotton, linen, and viscose, also have grooved, hollow, or oval structures on their surface, effectively increasing the liquid-locking micropores in the component and enhancing the capillary effect. This improves the liquid-guiding and liquid-locking functions of the liquid-absorbing component 10, enabling it to supply oil evenly and stably, while also preventing leakage of the locked liquid. In addition, compared to ceramic core products, cellulose fibers are natural and environmentally friendly, causing no burden on the environment and having no toxic side effects, making them safe and pollution-free. The cellulose fibers of this invention can be natural cotton or linen fibers, or artificial cellulose fibers such as viscose, Tencel, cuprammonium, lyocell, and modal, or a combination of multiple cellulose fibers.

[0024] In the aforementioned atomizing heating module, the total surface area of ​​the metal mesh structure of the heating functional component 20 is 0.05–1.00 cm². 2 The area of ​​the heated metal mesh in the atomizer core determines the area of ​​the atomization working area and also the overall size of the atomizer core. If the metal mesh area is too small, its contact area with the liquid guiding component is smaller, resulting in less e-liquid contact and lower atomization efficiency and a poorer atomization effect. Increasing the power to improve atomization efficiency may lead to localized overheating of the atomizer core, causing problems such as burnt coils. Conversely, if the metal mesh area is too large, there will be excessive contact with e-liquid, resulting in a vapor production far exceeding the user's needs. Reducing the power to decrease the vapor production may easily lead to insufficient heating of the overall atomizer core, failing to stimulate flavor and texture. Furthermore, an excessively large metal mesh will increase the size of the atomization heating module, resulting in a larger cartridge size, significantly reducing usability and portability. Therefore, the total surface area of ​​the metal mesh structure in this invention is preferably 0.10–0.80 cm². 2 More preferably 0.20–0.60 cm 2 The atomizing heating module of this invention has a Shore hardness of 10-60 HD for its air pressure regulating component 30, which is a microporous silica gel. The unit of Shore hardness is HD, or D, a degree, which is a measure of the hardness of a material; the higher the value, the harder the material. Normally, the air pressure regulating component 30 seals the cartridge. When the air pressure inside and outside the cartridge changes, it deforms to allow a certain amount of gas to pass through, thus maintaining the air pressure inside and outside the cartridge. Therefore, the selection of the hardness of the silica gel 30, which is the gas pressure regulating component, is crucial. If the hardness of the silica gel is too high, when a certain pressure difference is generated inside and outside the cartridge, the pressure will not be sufficient to deform the silica gel, and the gas pressure regulating component will not be able to regulate the gas pressure. If the hardness of the silica gel is too low, it will lack rigidity and be too easily deformed, posing a certain risk to the sealing of the ventilation channel. Therefore, the hardness of the silica gel needs to be within a suitable range. Mixing the fillers and additives in the silica gel in different proportions can achieve various intermediate hardness values. In addition, the heating curing time and temperature can also change the hardness without damaging other physical characteristics. The Shore hardness of the silica gel of the present invention is preferably 15-50 HD, more preferably 20-40 HD.

[0025] Furthermore, the silica gel of the present invention can be either inorganic silica gel or organic silica gel. Organic silica gel refers to a chemical substance in which at least one organic group is directly connected to a silicon atom. In the field of electronic cigarettes, the sealing component may be subjected to repeated heating. Organic silica gel has the risk of releasing harmful substances during the heating process. Therefore, the silica gel of the present invention is preferably an inorganic silica gel with higher safety.

[0026] In the atomizing heating module of the present invention, the thickness of the contact portion 50 between the air pressure regulating component 30 and the upper end face of the groove of the sleeve 40 is 0.1–1.0 mm. The air pressure regulating function of the air pressure regulating component 30 of the present invention is mainly achieved by the deformation of the contact portion 50 between it and the upper end face of the groove of the sleeve 40, thereby regulating the air pressure. Therefore, the thickness of the silica gel in this portion has a suitable range. If the thickness is too large, the pressure difference required for deformation is too large, thus making it difficult to regulate the air pressure; if the thickness is too small, deformation occurs too easily, and deformation may also occur during use or shaking, resulting in poor sealing and easy oil leakage. Therefore, the thickness of the contact portion 50 between the air pressure regulating component 30 and the upper end face of the groove of the sleeve 40 is preferably 0.2–0.8 mm, more preferably 0.3–0.6 mm.

[0027] The microporous silica gel in the atomizing heating module of this invention has micropores with an average diameter of 0.5–10 nm. The silica gel has the chemical formula xSiO2·yH2O and is transparent or milky white in appearance. It can also be made into any desired color by adding color masterbatch. Due to its unique properties, the silica gel has an open porous structure with strong adsorption and sealing properties. The microporous structure of the silica gel also helps to adsorb e-liquid and prevent e-liquid leakage.

[0028] The processing method of the silica gel of the present invention can be as follows: adding a dilute acid solution to a water glass solution to react and obtain an aqueous silica gel, washing with water to remove dissolved electrolyte particles (sodium ions and sulfate ions), drying at a low temperature below 100°C, and then activating at 290-350°C to obtain a solid silica gel of the present invention. Its pore size can be adjusted by the activation processing temperature and by adding additives.

[0029] When the pore size of the silica gel is large, its adsorption and sealing effect is poor, resulting in poor sealing and easy leakage. When the pore size of the silica gel is small, the adsorption and sealing effect is good, but at the same time, due to the excellent sealing effect, it is necessary to overcome its own adsorption force to undergo micro-deformation when there is a pressure difference between the inside and outside, so the effect of pressure regulation is also poor. Therefore, the average diameter of the silica gel micropores of the present invention is preferably 2 to 7 nm, more preferably 3 to 5 nm.

[0030] The microporous silica gel in the atomizing heating module of this invention has a volume resistivity of 10. 11 ~10 14 Ohms / cm. Silicate gel itself is an insulating material, but its electrical properties can change with the addition of additives or under certain temperature conditions. If its volume resistivity is above 10... 11 If the volume resistivity is below 10 ohms / cm, the resistance is too low. Since silica gel has a certain degree of conductivity, it also heats up during the atomization process. Excessive temperature not only easily leads to deterioration and damage, but also results in poor atomization, reduced flavor, and the volatilization of harmful substances, among other problems. If the volume resistivity is higher than 10... 14 If the volume resistivity is 10 ohms / cm, the material is in an insulating state. However, during the fabrication of silica gel, ionic impurities must be strictly controlled to prevent residues, which drastically increases processing costs. Therefore, the microporous silica gel of this invention preferably has a volume resistivity of 10 ohms / cm. 12 ~10 14 Ohms / cm, preferably 10 13 ~10 14 Ohms / cm.

[0031] In the atomizing heating module of the present invention, the inner diameter of the sleeve 40 is 2-15 mm. The inner diameter of the sleeve determines the size of the atomizing heating component and the size of the cartridge. If the inner diameter is too large, the overall size of the cartridge will be too large, and the size of the air pressure regulating component 30 will also need to be adjusted accordingly. An excessively large size will lead to a decrease in the accuracy of air pressure regulation. If the inner diameter is too small, the size of the atomizing heating component will be small, and the sizes of the liquid absorption component and the heating component will need to be reduced, which will greatly reduce the atomizing heating function itself. Therefore, the inner diameter of the sleeve 40 of the present invention is preferably 3-10 mm, and more preferably 4-7 mm.

[0032] In the atomizing heating module of the present invention, the length of the sleeve 40 is 5 to 50 mm. The reason is similar to that of the inner diameter. If the length is too large, the accuracy of the air pressure regulation function will be reduced. If the length is too small, the atomization function will be worse. Therefore, the length of the sleeve 40 of the present invention is preferably 6 to 40 mm, and more preferably 7 to 30 mm.

[0033] The atomizing heating module of the present invention has a sleeve 40 with 1 to 16 openings and 1 to 16 slots, wherein the total opening area is 1 to 20 mm. 2 The total slotted cross-sectional area is 0.03–1.00 mm². 2 The slotted portion is entirely or partially covered by the air pressure regulating component 30. The main function of the opening structure is to supply oil to the liquid absorption component 10. If the opening area is too small, insufficient oil supply and poor atomization effect are likely to occur; if the opening area is too large, the oil supply is sufficient, but the risk of oil leakage also increases. The main function of the slotted structure is to cooperate with the air pressure regulating component 30 to realize the air pressure regulating function. If the slotted area is too small, the air exchange efficiency is reduced and the air pressure regulating function is weakened; if the slotted area is too large, the risk of oil leakage will also increase. Therefore, the sleeve 40 of the present invention preferably has 2 to 12 opening structures, more preferably 4 to 8; the slotted structure is preferably 2 to 8, more preferably 4 to 6; and the total opening area is preferably 4 to 10 mm. 2 More preferably 6-8mm 2 The total slot cross-sectional area is preferably 0.1–0.8 mm². 2 More preferably 0.2–0.6 mm 2 .

[0034] Furthermore, the groove depth of the sleeve 40 in this invention is 0.05–0.30 mm, and the wall thickness of the sleeve 40 is 0.1–5 mm. If the sleeve is too thick and the groove depth is too large, the sealing performance of the overall atomizing heating module will be reduced, and leakage problems will easily occur; if the sleeve is too thin and the groove depth is too small, the ventilation function of the overall atomizing heating module will be weakened, the ventilation efficiency will be reduced, and the accuracy of the air pressure regulation function will decrease. Therefore, the groove depth of the sleeve 40 in this invention is preferably 0.08–0.20 mm, and the wall thickness of the sleeve 40 is preferably 0.2–2 mm.

[0035] In the atomizing heating component of the present invention, a sealing element can be installed above the sleeve 40 to further prevent e-liquid from leaking through the top of the suction component. During use and transportation, the cartridges are inevitably subject to inversion and vertical vibration; the sealing element further ensures that e-liquid will not leak.

[0036] The air pressure regulating component 30 and the sleeve 40 of the present invention are used together. In particular, the part of the air pressure regulating component 30 that is in contact with the inner side of the sleeve 40 also needs to be adjusted in shape and circuit to better ensure sealing and air exchange. Therefore, in order to facilitate assembly, the sleeve 40 and the air pressure regulating component 30 can also have positioning notches or positioning ports to facilitate assembly and use. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the atomizing heating module of the present invention, wherein the left side is the effect after assembly; and the right side is the structure after disassembly.

[0038] Figure 2 This is a cross-sectional view of the atomizing heating module of the present invention after it has been loaded with a cigarette cartridge.

[0039] Figure 3 This is a schematic diagram of a heating function component 20 according to the present invention.

[0040] 10 - Liquid suction function component, 20 - Heating function component, 30 - Pressure regulation function component 40-Sleeve, 50-Pressure regulating function component and the upper end face of the sleeve groove contact area, 60-Sleeve opening section, 70-Sleeve groove section The present invention will be further illustrated by the following embodiments, but the scope of protection of the present invention is not limited to the embodiments. The physical property parameters in the embodiments are determined by the following methods.

[0041] [Metal mesh surface area] The outer edge length of the metal mesh sheet of the present invention is measured using a magnifying glass and a ruler, and the area A1 of the metal mesh sheet is calculated; at the same time, the edge length of the hollow part of the metal mesh is also measured, and the area of ​​the hollow part is calculated; the surface area of ​​the metal mesh sheet is obtained by subtracting the area of ​​the hollow part A2 from the area A1 of the metal mesh sheet.

[0042] Shore Hardness The hardness of silica gel was measured according to the JJG1039~2008 standard, and the average value was taken from ten points.

[0043] [Silicic Gel Pore Size] The surface of the silica gel was observed using a scanning electron microscope at a magnification of over 5000x. Then, the pore size of the surface was measured using measurement software. The average value of 50 measurements was taken as the pore size of the silica gel.

[0044] Volume resistivity The volume resistivity of the material is measured according to the test method recorded in GB / T1410~2006 Solid Insulating Materials, and the volume resistivity value of the material is obtained.

[0045] [Opening area] Use a ruler or vernier caliper to measure the dimensions of the opening and calculate the area of ​​the opening.

[0046] [Slotted Area] Use a ruler or vernier caliper to measure the dimensions of the groove, and calculate the total cross-sectional area of ​​the groove by measuring the width and depth of the groove.

[0047]

thickness

[0048] Service life The atomizing heating module was fitted into a cartridge containing 5ml of e-liquid, inserted into the e-cigarette device, and the e-cigarette was then inhaled. Inhalation was assisted by an automatic inhaler. After each evaluator took one puff, the automatic inhaler would take 99 more puffs, and so on. The experiment was stopped when the evaluator noticed a significant deterioration in flavor. The number of puffs at this point was used to characterize the material's lifespan. If the flavor remained good after all 5ml of e-liquid was used or after 500 puffs, it was rated as excellent.

[0049] [Leakage] The atomizing heating module was assembled into the cartridge filled with e-liquid and placed on a small vibration test bench for vibration testing at a frequency of 60 cycles per minute. After one hour of testing, the e-cigarette's smoke duct and the gaps between its components were observed to check and evaluate any leakage.

[0050] It is divided into four levels: no leakage, slight leakage, leakage, and severe leakage.

[0051] [Suction Stability] The atomizing heating module was assembled into a cartridge filled with e-liquid, and the cartridge was then inserted into the e-cigarette device. Ten testers then conducted blind tests on the e-cigarette product, performing 100 puffs each. The stability of the product's vaping experience was comprehensively evaluated based on indicators such as flavor, taste reproduction, and moisture content. The evaluation levels were categorized as: Excellent, Good, Average, Fair, and Poor. Example

[0052] Example 1 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0053] Example 2 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 60HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0054] Example 3 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 10HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0055] Example 4 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 1.0mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0056] Example 5 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.1mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0057] Example 6 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 1mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0058] Example 7 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 20mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0059] Example 8 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.03mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0060] Example 9 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 1.00mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0061] Example 10 PET fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 1.

[0062] Example 11 Tencel nonwoven fabric was selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 2.

[0063] Example 12 The absorbent component 10 is made of a cotton / linen blend nonwoven fabric; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 2.

[0064] Example 13 The absorbent component 10 is made of a cotton / viscose blended nonwoven fabric; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 2.

[0065] Example 14 Viscose fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm. 2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 2.

[0066] Comparative Example 1 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins is the heating component 20; it is assembled into a heating atomizing core for use in electronic cigarette cartridges, and the relevant performance parameters are shown in Table 3.

[0067] Comparative Example 2 Cotton fiber nonwoven fabric is selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins is the heating function component 20; a sleeve is added to the outside to ensure the stability of the atomizing core, and the assembly is used as a heating atomizing core in the e-cigarette cartridge. The relevant performance parameters are shown in Table 3.

[0068] Comparative Example 3 Ceramic material was selected as the liquid-absorbing component 10; the total surface area is 0.30 cm². 2 The metal mesh with pins serves as the heating component 20; simultaneously, a silica gel with a hardness of 20HD and a thickness of 0.3mm at the upper end is selected as the air pressure regulating component 30; the opening area is 5mm². 2 The groove area is 0.5mm.2 The metal tube is a sleeve 40; see the specific shape of each component. Figure 1 The components are assembled into an atomizing heating module, and the relevant performance parameters are shown in Table 3.

[0069] Table 1

[0070] Table 2

[0071] Table 3

[0072] According to the table above, (1) As can be seen from Examples 1, 2 and 3, the hardness of the air pressure regulating component 30 in Example 1 is within the preferred range, and the lifespan, leakage and stability of the atomizing heating module are more excellent.

[0073] (2) As can be seen from Examples 1 and 4 and 5, the thickness of the upper end surface 50 of the air pressure regulating function component 30 in Example 1 is within the preferred range, and the lifespan, leakage resistance and stability of the atomizing heating module are more excellent.

[0074] (3) As can be seen from Examples 1 and 6 and 7, the opening area of ​​the sleeve 40 in Example 1 is within the preferred range, and the lifespan, leakage resistance and stability of the atomizing heating module are more excellent.

[0075] (4) As can be seen from Examples 1 and 8 and 9, the slotted area of ​​the sleeve 40 in Example 1 is within the preferred range, and the lifespan, leakage resistance and stability of the atomizing heating module are more excellent.

[0076] (5) As can be seen from the comparison between Example 1 and Example 10, the liquid absorption function component of Example 1 is made of cellulose fiber with better liquid locking performance, and the life, leakage and stability of the atomizing heating module are more excellent.

[0077] (6) As can be seen from the comparison between Example 1 and Comparative Example 1, Comparative Example 1 does not have the air pressure regulating function component 30 and the sleeve 40, and its service life, leakage and stability are poor.

[0078] (7) As can be seen from the comparison between Example 1 and Comparative Example 2, Comparative Example 2 lacks the air pressure regulation function component 30, and its service life, leakage resistance and stability are greatly reduced.

[0079] (8) As can be seen from the comparison between Example 1 and Comparative Example 3, when the liquid absorption functional component is not a fiber aggregate structure, the leakage and stability of the atomizing heating module decrease sharply.

Claims

1. An atomizing heating module, characterized in that... It includes at least a liquid absorption component (10), a heating component (20), a pressure regulating component (30), and a sleeve (40); the liquid absorption component (10) is a fiber aggregate structure, the heating component (20) is a metal mesh structure with pins, the pressure regulating component (30) is a microporous silica gel structure, and the sleeve (40) is a metal or plastic structure with openings and grooves on the surface. The grooved portion of the sleeve (40) is completely or partially covered by the pressure regulating component (30). The Shore hardness of the microporous silica gel of the pressure regulating component (30) is 10 to 60 HD, and the average diameter of the micropores is 0.5 to 10 nm. The thickness of the contact portion (50) between the pressure regulating component (30) and the upper end face of the groove of the sleeve (40) is 0.1 to 1.0 mm.

2. The atomizing heating module according to claim 1, characterized in that... The liquid-absorbing functional component (10) is a cellulose fiber aggregate structure.

3. The atomizing heating module according to claim 1, characterized in that... The total surface area of ​​the metal mesh structure of the heating functional component (20) is 0.05–1.00 cm². 2 .

4. The atomizing heating module according to claim 1, characterized in that... Its volume resistivity is 10 11 ~10 14 Ohms / cm.

5. The atomizing heating module according to claim 1, characterized in that... The inner diameter of the sleeve (40) is 2 to 15 mm.

6. The atomizing heating module according to claim 1, characterized in that... The length of the sleeve (40) is 5 to 50 mm.

7. The atomizing heating module according to claim 1, characterized in that... The sleeve (40) has 1 to 16 opening structures and 1 to 16 slot structures.

8. The atomizing heating module according to claim 1, characterized in that... The total opening area of ​​the sleeve (40) is 1-20 mm. 2 The total cross-sectional area of ​​the slot is 0.03–1.00 mm². 2 .

9. An electronic cigarette cartridge, characterized in that... Includes the atomizing heating module as described in any one of claims 1 to 8.

10. An electronic cigarette, characterized in that... Includes the atomizing heating module as described in any one of claims 1 to 8.

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