Electronic atomizer

Abstract

The invention discloses an electronic atomizer. The electronic atomizer comprises a shell assembly, an atomization assembly and a ventilation assembly. A liquid storage cavity is formed in the shell assembly, and a first air channel and a second air channel which are communicated with the outside are formed in the cavity wall of the liquid storage cavity; the atomization assembly is arranged in the liquid storage cavity and comprises an outer pipe, outer cotton, a middle pipe, middle cotton, an inner pipe, inner cotton and an atomization core which are sequentially arranged in a sleeving mode from outside to inside, a vent hole is formed in the top end of the middle pipe and located above the outer cotton, so that the space above the outer cotton is communicated with the middle cotton, and the space above the middle cotton is communicated with the first air channel; the two ends of the ventilation assembly communicate with the top end of the liquid storage cavity and the second air channel correspondingly. The first air channel and the second air channel are used for cooperatively balancing air pressure between the liquid storage cavity and the outside. According to the electronic atomizer, the air pressure between the liquid storage cavity and the outside is balanced through cooperation of the first air channel and the second air channel, and liquid leakage cannot occur in the extreme environments of aviation negative pressure, high and low temperature and the like.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular to an electronic atomizer. Background Technology

[0002] Electronic atomizers, as portable aerosol generating devices, are widely used in daily vaping scenarios. Their core structure typically includes a liquid storage chamber and an atomizing component. The liquid storage chamber is used to store the atomizing liquid, and the atomizing component is used to heat and atomize the atomizing liquid to form an aerosol.

[0003] Existing electronic atomizers generally use a single air outlet to handle internal air exchange. However, the air resistance control of a single air outlet is unreasonable, resulting in poor regulation of the liquid reservoir pressure. The pressure between the liquid reservoir and the outside environment cannot be effectively balanced, which can easily lead to leakage of the atomizing components. As a result, electronic atomizers have poor adaptability to extreme environments and cannot meet the requirements for stable and reliable use. Summary of the Invention

[0004] The main objective of this application is to provide an electronic atomizer that solves the technical problem that the airflow resistance of a single air outlet in existing electronic atomizers is not properly controlled, resulting in an inability to effectively balance the air pressure between the liquid reservoir and the outside environment.

[0005] To achieve the above objectives, this application proposes an electronic atomizer, the electronic atomizer comprising: The outer casing assembly has a liquid storage chamber inside, and the wall of the liquid storage chamber has a first air passage and a second air passage that communicate with the outside. An atomizing assembly is disposed within the liquid storage chamber. The atomizing assembly includes, from the outside in, an outer tube, an outer cotton layer, a middle tube, a middle cotton layer, an inner tube, an inner cotton layer, and an atomizing core, arranged sequentially from the outside in. A vent is provided at the top of the middle tube, located above the outer cotton layer, so that the space above the outer cotton layer communicates with the middle cotton layer. The space above the middle cotton layer communicates with the first air passage. A ventilation assembly, with its two ends connected to the top of the liquid storage chamber and the second air passage, respectively; The first airway and the second airway are used to work together to balance the air pressure between the liquid storage chamber and the outside.

[0006] Optionally, the inner cotton covers the vent, and the inner cotton is used to increase the resistance to gas flow through the vent.

[0007] Optionally, the side of the inner cotton facing the inner tube is recessed towards the inner tube to form a ventilation channel, and the top end of the ventilation channel penetrates the top wall of the inner cotton.

[0008] Optionally, the number of vent holes is 2 to 8, the diameter of a single vent hole is 0.5 to 2.0 mm, the flow cross-sectional area of ​​the end of the first air passage away from the interior of the liquid storage chamber is 4 to 12 mm², and the flow cross-sectional area of ​​the end of the second air passage away from the interior of the liquid storage chamber is 0.1 to 2.0 mm².

[0009] Optionally, the outer tube has 2 to 6 external liquid inlets, and the diameter of the external liquid inlets is 0.3 to 1.5 mm; the outer cotton has a wall thickness of 2.5 to 5.0 mm, a height of 15 to 25 mm, and a density of 0.08 to 0.20 g / cm³; the inner cotton has a wall thickness of 2.0 to 4.0 mm, a height of 20 to 30 mm, and a density of 0.06 to 0.15 g / cm³.

[0010] Optionally, the electronic atomizer includes: A sealing element is provided between the atomizing component and the first air passage, and the sealing element is respectively sealed to the top end of the outer tube and the top end of the middle tube. The sealing element has an opening that connects the space above the middle cotton and the first air passage. The wall of the opening is inclined from top to bottom toward the middle tube. The part of the sealing element opposite to the outer cotton is inclined from top to bottom toward the middle tube. A buffer cavity is formed between the sealing element and the outer cotton.

[0011] Optionally, the atomizing core has an atomizing chamber inside, the first air passage and the opening are both located above the atomizing chamber and are directly opposite the atomizing chamber, and the top end of the inner tube is at least partially spaced from the wall of the opening.

[0012] Optionally, the ventilation assembly includes liquid-blocking cotton and an air guide tube. The liquid-blocking cotton is assembled on the top inner wall of the liquid storage chamber, and the two ends of the air guide tube are respectively connected to and communicate with the liquid-blocking cotton and the second air passage.

[0013] Optionally, the inner diameter of the air duct is 0.5~2.0 mm.

[0014] Optionally, the second airway includes an interconnected insertion tube and an air exchange tube; one end of the air guide tube is sealed and inserted into the insertion tube; the inner wall of the air exchange tube is recessed outward to form a first air exchange channel, the first air exchange channel passes through both ends of the air exchange tube, the ventilation assembly includes a sealing plug, the sealing plug is sealed to the inner wall of the air exchange tube, the sealing plug and the first air exchange channel cooperate to form a first air exchange gap, the first air exchange gap constitutes one end of the second airway away from the interior of the liquid storage chamber, the flow cross-sectional area of ​​the first air exchange gap is 0.1~2.0 mm², and the interference fit force between the sealing plug and the air exchange tube is greater than or equal to 8 N.

[0015] Optionally, the second air passage is formed by the bottom wall of the liquid storage cavity; the inner wall of the plug tube is recessed outward to form a second air exchange channel, the second air exchange channel passes through both ends of the plug tube, the outer wall of the air guide tube cooperates with the second air exchange channel to form a second air exchange gap, the second air exchange gap is connected to the first air exchange gap, and the flow cross-sectional area of ​​the second air exchange gap is 0.01~0.08 mm².

[0016] Optionally, the diameter of the air exchange cylinder is larger than the diameter of the plug-in cylinder, and the interference fit force between the sealing plug and the air exchange cylinder is greater than or equal to 10 N.

[0017] In the electronic atomizer of this application, two independent air passages are formed by setting up independent first and second air passages on the wall of the liquid storage chamber, and by cooperating with a ventilation component connecting the top of the liquid storage chamber to the second air passage, as well as a ventilation hole structure on the atomizing component. The two air passages work together to complete the air exchange between the liquid storage chamber and the outside environment, avoiding leakage of atomized liquid due to excessive negative pressure or sudden pressure changes, and significantly improving the stability of the electronic atomizer in extreme environments such as aviation negative pressure and high and low temperatures.

[0018] Specifically, the atomizing component, through its vent, primarily regulates the local pressure within the atomizing area; the venting component, in conjunction with the second air passage, primarily regulates the overall pressure of the liquid storage chamber. These dual pressure-regulating structures work together without interfering with each other. While the local pressure regulation of the atomizing component does not directly affect the liquid storage chamber, it stabilizes the negative pressure distribution within the atomizing area, reducing the transmission of pressure fluctuations from the liquid storage chamber to the atomizing area. This indirectly reduces the risk of leakage and backflow in the liquid storage chamber due to local pressure imbalance, thus helping to maintain stable overall pressure in the liquid storage chamber. This dual pressure-regulating structure ensures stable overall pressure in the liquid storage chamber while enabling precise local pressure relief in the atomizing area, improving pressure regulation efficiency while maintaining a leak-proof seal.

[0019] Meanwhile, in the electronic atomizer of this application, the vent hole at the top of the middle tube and above the outer cotton smoothly connects the space above the outer cotton with the middle cotton, opening up the pressure release path between the outer cotton and the inner cotton, avoiding the formation of a closed chamber between the outer cotton and the inner cotton, effectively reducing the oil pressure formed by the atomizing liquid during the oil guiding process, preventing the atomizing liquid transmission obstruction and oil supply problems caused by local pressure accumulation, and ensuring smooth atomizing liquid delivery and uniform and stable oil supply.

[0020] In addition, the central tube located between the outer and middle cotton can form structural support and play a role in resisting pressure, avoiding uneven oil guiding or channel blockage caused by deformation of the outer and middle cotton under pressure, further ensuring the long-term stable operation of the outer and middle cotton, ensuring a stable and consistent atomized taste, and extending the overall service life of the atomization component. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional view of an embodiment of the electronic atomizer of this application; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle; Figure 4 for Figure 1 Details of some structures in the illustrated embodiment Figure 1 ; Figure 5 for Figure 1 Details of some structures in the illustrated embodiment Figure 2 ; Figure 6 for Figure 1 Details of some structures in the illustrated embodiment Figure 3 .

[0023] Explanation of icon numbers: label name label name 10 Electronic atomizer 100 Liquid storage chamber 200 First airway 300 Second airway 310 Plug-in sleeve 311 Second ventilation slot 320 air pump 321 First air exchange channel 330 abutting protrusion 331 gap 400 Atomizing components 410 outer tube 411 External liquid inlet 420 outer cotton 430 Central tube 431 Vent 440 China Cotton 441 ventilation 450 Inner tube 460 Inner cotton 470 atomizer core 471 Atomizing chamber 480 Fiberglass tube 500 Ventilation components 510 Liquid-resistant cotton 520 air tube 530 Sealing plug 600 Connecting slot 700 Seals 710 Through The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0027] This application discloses an electronic atomizer, which includes a shell assembly, an atomizing assembly, and a ventilation assembly. The shell assembly has a liquid storage chamber inside, and the chamber wall has a first air passage and a second air passage connecting to the outside. The atomizing assembly is located within the liquid storage chamber and includes, from the outside in, an outer tube, an outer cotton, a middle tube, a middle cotton, an inner tube, an inner cotton, and an atomizing core. A ventilation hole is located at the top of the middle tube, above the outer cotton, so that the space above the outer cotton is connected to the middle cotton, and the space above the middle cotton is connected to the first air passage. The two ends of the ventilation assembly are respectively connected to the top of the liquid storage chamber and the second air passage. The first and second air passages are used to coordinate and balance the air pressure between the liquid storage chamber and the outside.

[0028] In the electronic atomizer of this application, two independent air passages are formed by setting up independent first and second air passages on the wall of the liquid storage chamber, and by cooperating with a ventilation component connecting the top of the liquid storage chamber to the second air passage, as well as a ventilation hole structure on the atomizing component. The two air passages work together to complete the air exchange between the liquid storage chamber and the outside environment, avoiding leakage of atomized liquid due to excessive negative pressure or sudden pressure changes, and significantly improving the stability of the electronic atomizer in extreme environments such as aviation negative pressure and high and low temperatures.

[0029] Specifically, the atomizing component, through its vent, primarily regulates the local pressure within the atomizing area; the venting component, in conjunction with the second air passage, primarily regulates the overall pressure of the liquid storage chamber. These dual pressure-regulating structures work together without interfering with each other. While the local pressure regulation of the atomizing component does not directly affect the liquid storage chamber, it stabilizes the negative pressure distribution within the atomizing area, reducing the transmission of pressure fluctuations from the liquid storage chamber to the atomizing area. This indirectly reduces the risk of leakage and backflow in the liquid storage chamber due to local pressure imbalance, thus helping to maintain stable overall pressure in the liquid storage chamber. This dual pressure-regulating structure ensures stable overall pressure in the liquid storage chamber while enabling precise local pressure relief in the atomizing area, improving pressure regulation efficiency while maintaining a leak-proof seal.

[0030] Meanwhile, in the electronic atomizer of this application, the vent hole at the top of the middle tube and above the outer cotton smoothly connects the space above the outer cotton with the middle cotton, opening up the pressure release path between the outer cotton and the inner cotton, avoiding the formation of a closed chamber between the outer cotton and the inner cotton, effectively reducing the oil pressure formed by the atomizing liquid during the oil guiding process, preventing the atomizing liquid transmission obstruction and oil supply problems caused by local pressure accumulation, and ensuring smooth atomizing liquid delivery and uniform and stable oil supply.

[0031] In addition, the central tube located between the outer and middle cotton can form structural support and play a role in resisting pressure, avoiding uneven oil guiding or channel blockage caused by deformation of the outer and middle cotton under pressure, further ensuring the long-term stable operation of the outer and middle cotton, ensuring a stable and consistent atomized taste, and extending the overall service life of the atomization component.

[0032] The following will mainly describe the specific structure of the electronic atomizer.

[0033] Please refer to the following: Figures 1 to 6 The electronic atomizer 10 of this application includes a housing assembly. The housing assembly covers the exterior of the other structures of the electronic atomizer 10, providing stable assembly support for each functional component, while isolating external moisture, dust, and other impurities from intrusion. The housing assembly forms a sealed fit with the internal components, ensuring that the overall structure of the electronic atomizer 10 is compact and stable, while preventing leakage of atomized liquid from the assembly gaps.

[0034] Please refer to the following: Figures 1 to 3 The housing assembly has a liquid storage chamber 100 inside. The liquid storage chamber 100 is used to store atomizing liquid and continuously provide atomizing medium to the atomizing assembly 400. The housing assembly includes an upper shell and a lower shell, with the lower shell sealed and inserted into the bottom end of the upper shell. The liquid storage chamber 100 is formed by the cooperation of the inner wall of the upper shell and the outer wall of the lower shell.

[0035] Please refer to the following: Figures 1 to 3 The liquid storage chamber 100 has a first airway 200 and a second airway 300 communicating with the outside. In some embodiments, the first airway 200 is formed by the top wall of the upper shell, and the end of the first airway 200 away from the inside of the liquid storage chamber 100 is the mouthpiece, that is, the first airway 200 integrates both ventilation and suction functions. This configuration eliminates the need for separately configured ventilation and suction channels, reduces the number of parts, simplifies the overall structure, reduces assembly complexity, and improves the compactness and production assembly efficiency of the electronic atomizer 10. Of course, the first airway 200 can also be used only for ventilation between the liquid storage chamber 100 and the outside, that is, the first airway 200 and the mouthpiece are set independently. In this case, the flow cross-sectional area of ​​the first airway 200 is relatively small or it is equipped with an oil-blocking and breathable component, thereby preventing the atomized liquid from leaking from the first airway 200.

[0036] The location of the second airway 300 is not limited. Please refer to [link / reference]. Figure 1 and Figure 3 In some preferred embodiments, the second air passage 300 is formed by penetrating the bottom wall of the liquid storage cavity 100. Specifically, the second air passage 300 is formed by penetrating the top wall of the lower shell, that is, the second air passage 300 is located at the bottom end of the liquid storage cavity 100. Positioning the second air passage 300 at the bottom end of the liquid storage cavity 100 fully utilizes the bottom space of the liquid storage cavity 100, which is beneficial for achieving a compact and miniaturized product structure. Furthermore, the air outlet at the bottom end of the second air passage 300 is far from the nozzle, which reduces the risk of the atomized liquid overflowing through the second air passage 300 during suction or inversion, further improving sealing and leak-proof performance and safety in use.

[0037] The first air passage 200 and the second air passage 300 are used to coordinate and balance the air pressure between the liquid storage chamber 100 and the outside. The cross-sectional area of ​​the first air passage 200 and the second air passage 300 at the end away from the inside of the liquid storage chamber 100 is set according to their respective functional requirements. When balancing the air pressure in the liquid storage chamber 100, they each perform their respective functions and cooperate with each other to ensure rapid air exchange and pressure regulation while taking into account sealing reliability and operational stability, so as to achieve an efficient, stable and controllable air pressure balance effect.

[0038] Please see Figure 1 , Figure 2 and Figure 4 The electronic atomizer 10 of this application includes an atomizing component 400, which is disposed in the liquid storage chamber 100. The atomizing component 400 includes an outer tube 410, an outer cotton 420, a middle tube 430, a middle cotton 440, an inner tube 450, an inner cotton 460, and an atomizing core 470, which are arranged sequentially from the outside to the inside.

[0039] Please combine Figure 1 and Figure 2 The outer tube 410, middle tube 430, and inner tube 450 are respectively provided with an outer liquid inlet 411, a middle liquid inlet 430, and an inner liquid inlet 450. The atomizing liquid in the liquid storage chamber 100 first permeates through the outer liquid inlet 411 on the outer tube 410 to the outer cotton 420, where it is initially absorbed and buffered. Subsequently, the atomizing liquid permeates through the middle liquid inlet from the outer cotton 420 to the middle cotton 440, and then through the inner liquid inlet from the middle cotton 440 to the inner cotton 460. Through the multi-layered oil-guiding structure of the outer cotton 420, middle cotton 440, and inner cotton 460, the liquid is gradually absorbed and evenly conducted, ultimately being stably delivered to the atomizing core 470, providing a continuous and uniform supply of atomizing liquid to the atomizing core 470. The above-mentioned multi-layered, step-by-step oil-guiding path makes the atomizing liquid transmission smoother and more balanced, avoiding excessive or insufficient oil supply in certain areas, ensuring the stable operation of the atomizing core 470, and improving the consistency of the atomized flavor.

[0040] Please see Figure 1 and Figure 2In some embodiments, a vent 431 is provided at the top of the middle tube 430. The vent 431 is located above the outer cotton 420, so that the space above the outer cotton 420 is connected to the middle cotton 440, and the space above the middle cotton 440 is connected to the first air passage 200. The vent 431 smoothly connects the space above the outer cotton 420 and the middle cotton 440, opening up the pressure release path between the outer cotton 420 and the inner cotton 460, avoiding the formation of a closed chamber between the outer cotton 420 and the inner cotton 460, effectively reducing the oil pressure formed by the atomizing liquid during the oil guiding process, preventing the atomizing liquid transmission obstruction and oil supply problems caused by local pressure accumulation, and ensuring smooth atomizing liquid delivery and uniform and stable oil supply.

[0041] More importantly, the atomizing component 400, through the vent 431, achieves local pressure regulation within the atomizing area. This local pressure regulation stabilizes the negative pressure distribution within the atomizing area, reduces the transmission of pressure fluctuations within the liquid storage chamber 100 to the atomizing area, and indirectly reduces the risk of leakage or backflow in the liquid storage chamber 100 due to local pressure imbalance, thereby helping to maintain overall pressure stability in the liquid storage chamber 100.

[0042] Please see Figure 1 and Figure 2 In some embodiments, the cotton 440 blocks the vent 431, increasing the resistance to gas flow through the vent 431. With the second airway 300 simultaneously participating in the pressure balance of the liquid storage chamber 100, the cotton 440 limits and controls the airflow speed through the vent 431, precisely controlling the local pressure adjustment speed in the atomization area. This prevents excessive pressure fluctuations in the vent 431 due to excessively rapid airflow, ensuring that the local pressure adjustment of the vent 431 matches and coordinates with the overall pressure adjustment rate of the second airway 300. This configuration avoids pressure imbalance caused by excessive differences in airflow speed between the two airways, allowing the dual pressure adjustment structures to adapt to each other without interference during operation. This ensures rapid and stable overall pressure in the liquid storage chamber 100 while achieving gradual pressure adjustment in the atomization area, further improving the stability and reliability of pressure balance, and reducing the risk of splashing and leakage of the atomized liquid under airflow.

[0043] Please see Figure 1 and Figure 2In some embodiments, the side of the inner tube 440 facing the inner tube 450 is recessed towards the middle tube 430 to form a vent 441, the top of which penetrates the top wall of the inner tube 440. This vent 441 forms a dedicated airflow channel between the inner tube 440 and the inner tube 450, and connects to the area above the inner tube 440. Since the area above the inner tube 440 is further connected to the vent 431 and the first air passage 200, pressure release between the inner tube 440 and the inner tube 450 is achieved. Through the vent 441, the oil pressure applied by the inner tube 440 to the inner tube 450 can also be effectively reduced, preventing problems such as atomized liquid accumulation, leakage, or excessively rapid oil delivery in the inner tube 450 area due to excessive oil pressure, making the transmission of the atomized liquid more stable and controllable. The air passage 441 also makes the supply rate of atomizing liquid and the airflow ratio more stable, resulting in a higher stability and consistency of atomized taste. This facilitates flavor adjustment for different atomizing liquids based on their viscosity, flowability and flavor characteristics, thereby improving the adjustability and versatility of the atomization experience.

[0044] The central tube 430, located between the outer cotton 420 and the middle cotton 440, provides structural support and resistance to pressure, preventing uneven oil distribution or blockage of the air passage 441 caused by deformation of the outer cotton 420 and the middle cotton 440 under pressure. This further ensures the long-term stable operation of the outer cotton 420 and the middle cotton 440, guarantees a consistent atomized flavor, and extends the overall service life of the atomizing component 400.

[0045] Please see Figure 1 and Figure 2 The electronic atomizer 10 includes a sealing element 700, which is sealed between the atomizing component 400 and the first air passage 200. The sealing element 700 also seals the top end of the outer tube 410 and the top end of the middle tube 430. The sealing element 700 has an opening 710 connecting the space above the middle cotton 440 and the first air passage 200. The sealing element 700 achieves a sealed connection between the atomizing component 400 and the first air passage 200.

[0046] Please see Figure 1 and Figure 2 The wall of the inlet 710 is inclined from top to bottom toward the central tube 430. The inclined wall of the inlet 710 can guide the airflow, allowing the airflow to flow smoothly in a preset direction, reducing airflow turbulence and resistance loss; at the same time, the inclined wall of the inlet 710 can increase the effective ventilation volume and ventilation cross-sectional area of ​​the inlet 710, improve the ventilation capacity of the inlet 710, and ensure more timely and smooth pressure release.

[0047] Please see Figure 1 and Figure 2The portion of the seal 700 opposite the outer cotton 420 is inclined downwards towards the middle tube 430, forming a buffer chamber between the seal 700 and the outer cotton 420. The buffer chamber can gather and stabilize the gas above the outer cotton 420, guiding the gas smoothly into the vent 431 of the middle tube 430, optimizing airflow guidance and ventilation efficiency, and stabilizing the local air pressure in the area above the outer cotton 420. At the same time, it can also reduce the impact of air pressure fluctuations on the multi-layer oil guiding structure (outer cotton 420, middle cotton 440, and inner cotton 460), avoiding oil supply disorder caused by sudden changes in air pressure, and further improving the stability of oil guiding.

[0048] Please see Figure 1 and Figure 2 In an embodiment where the atomizing core 470 has an atomizing chamber 471 formed inside, and the nozzle is formed at the end of the first air passage 200 away from the liquid storage chamber 100, both the first air passage 200 and the opening 710 are located above and directly opposite the atomizing chamber 471. The top end of the inner tube 450 is at least partially spaced from the wall of the opening 710. This structure allows the atomizing chamber 471, the opening 710, and the first air passage 200 to form a coaxial, directly opposite direct airflow path from top to bottom, enabling the airflow and atomized vapor to flow smoothly in a straight line, significantly reducing airflow resistance and turbulence, and ensuring smooth suction and rapid response. The space between the top end of the inner tube 450 and the wall of the opening 710 allows gas in the inner cotton 460 area to be smoothly discharged into the opening 710, releasing pressure.

[0049] Preferably, the entire top end of the inner tube 450 is spaced apart from the wall of the opening 710. This arrangement creates a continuous and uniform annular venting gap between the top end of the inner tube 450 and the wall of the opening 710, achieving comprehensive and balanced pressure release in the inner cotton 460 area and better preventing local gas retention or pressure accumulation.

[0050] Please see Figure 1 and Figure 2 The atomizing component 400 includes a fiberglass tube 480. The outer wall of the fiberglass tube 480 is fitted onto the inner wall of the inner tube 450 and is located above the inner cotton 460 and the atomizing core 470. The top of the fiberglass tube 480 is at least partially spaced from the wall of the opening 710. The fiberglass tube 480 is mainly used to form a stable airflow channel to guide the smooth output of vapor; it also plays a role in structural positioning and support, ensuring reliable assembly of the atomizing component 400; its high-temperature resistance can effectively insulate against heat, preventing high temperatures from affecting surrounding components, and it also has the functions of electrical insulation and blocking cotton fibers and condensate from entering, which can improve the safety of product use and the stability of taste.

[0051] Please see Figure 1 , Figure 3 and Figure 4The electronic atomizer 10 of this application includes a ventilation assembly 500. The two ends of the ventilation assembly 500 are respectively connected to the top of the liquid storage chamber 100 and the second air passage 300. The ventilation assembly 500 can directionally guide and orderly direct the airflow within the liquid storage chamber 100, ensuring stable airflow along a preset path and preventing disorderly airflow within the liquid storage chamber 100 that could cause pressure fluctuations or atomized liquid disturbance. By placing the air inlet of the ventilation assembly 500 at the top of the liquid storage chamber 100, the upper gas space of the liquid storage chamber 100 can be fully utilized, avoiding the atomized liquid level area, ensuring continuous unobstructed airflow, and achieving rapid, stable, and continuous pressure balance inside and outside the liquid storage chamber 100.

[0052] Please see Figure 1 , Figure 3 and Figure 4 The ventilation assembly 500 includes a liquid-blocking cotton 510 and an air guide tube 520. The liquid-blocking cotton 510 is fitted onto the top inner wall of the liquid storage chamber 100. Specifically, a connecting groove 600 is formed on the top inner wall of the liquid storage chamber 100, and the liquid-blocking cotton 510 is embedded in the connecting groove 600. The two ends of the air guide tube 520 are respectively connected to and communicate with the liquid-blocking cotton 510 and the second air passage 300. The liquid-blocking cotton 510 serves to allow air to pass through while blocking liquid. While ensuring air pressure balance, it can effectively prevent the atomized liquid from entering the air guide tube 520, avoiding blockage or leakage of the air guide tube 520 by the atomized liquid, and ensuring the long-term stable operation of the ventilation assembly 500. The air guide tube 520 serves to guide airflow, providing a stable and straight ventilation path, accurately guiding the airflow to the second air outlet, and preventing the airflow from moving turbulently within the liquid storage chamber 100. The two work together to ensure smooth airflow and efficient air pressure regulation, while also providing reliable liquid blocking, anti-clogging, and anti-leakage functions, further enhancing the stability of the electronic atomizer 10 in use and under extreme conditions.

[0053] Please see Figure 1 , Figure 3 , Figure 5 and Figure 6 The second air passage 300 includes an interconnected insertion cylinder 310 and an air exchange cylinder 320, with one end of the air guide tube 520 sealed and inserted into the insertion cylinder 310. The inner wall of the air exchange cylinder 320 is recessed outwards to form a first air exchange channel 321, which extends through both ends of the air exchange cylinder 320. The ventilation assembly 500 includes a sealing plug 530, which is sealed to the inner wall of the air exchange cylinder 320. The sealing plug 530 cooperates with the first air exchange channel 321 to form a first air exchange gap, which constitutes one end of the second air passage 300 away from the interior of the liquid storage chamber 100. By providing the first air exchange channel 321 on the inner wall of the air exchange cylinder 320 and cooperating with the sealing plug 530 to form the first air exchange gap, the air outlet channel of the second air passage 300 can be accurately and stably formed, avoiding airway blockage or uncontrollable ventilation area due to assembly deviations.

[0054] Please see Figure 1 , Figure 3 and Figure 6 The insert sleeve 310 extends towards the sealing plug 530 on the side facing the sealing plug 530, forming an abutment protrusion 330. The abutment protrusion 330 abuts against the sealing plug 530, and the abutment protrusion 330 has a notch 331 that connects the air guide tube 520 and the first air exchange gap. Thus, the sealing plug 530 is effectively limited by the abutment protrusion 330 during assembly and use, and will not block the port of the air guide tube 520 due to excessive pressing, ensuring that the air guide tube 520 and the first air exchange gap always remain unobstructed, and the air passage is stable and reliable.

[0055] Please see Figure 1 and Figure 3 The sealing plug 530 has inwardly recessed grooves on both the side facing the air guide tube 520 and the side facing away from the air guide tube 520. The groove on the side facing the air guide tube 520 provides clearance for the assembly of the air guide tube 520 and the abutment protrusion 330, preventing the sealing plug 530 from pressing against the port of the air guide tube 520, further ensuring unobstructed airflow. The groove on the side facing away from the air guide tube 520 reduces the weight of the sealing plug 530 itself, reducing the tension on the interference fit structure caused by the sealing plug 530's own weight, further improving the stability of the sealing plug 530 after assembly. Simultaneously, the groove structure increases the elastic deformation capacity of the sealing plug 530, making its interference fit with the inner wall of the air exchanger 320 tighter and the sealing effect more reliable, effectively preventing air leakage and loosening, and ensuring stable airflow and smooth pressure balance in the second air passage 300. Of course, the sealing plug 530 may also be without grooves.

[0056] The flow cross-sectional area of ​​the first air exchange gap is approximately 0.1~2.0 mm². Within this range, it can ensure sufficient air exchange capacity between the liquid storage chamber 100 and the outside world, quickly balance the internal and external air pressure of the liquid storage chamber 100, and avoid poor oil supply or leakage caused by excessive pressure difference in the liquid storage chamber 100. At the same time, it can control the airflow velocity and ventilation resistance through a reasonable cross-sectional area to prevent the airflow from disturbing the atomizing liquid too fast or causing pressure response lag due to too slow airflow.

[0057] The structure of the first air exchange gap, combined with its specific flow cross-sectional area design, enables stable, controllable, and uniform air pressure regulation in the liquid storage chamber 100. This, along with the local pressure regulation structure of the atomizing component 400, further enhances the air pressure stability and leak-proof reliability of the electronic atomizer 10 in scenarios such as suction, high and low temperatures, and aviation negative pressure.

[0058] The interference fit between the sealing plug 530 and the air exchanger 320 is greater than or equal to 8 N. Controlling the interference fit between the sealing plug 530 and the air exchanger 320 to 8 N or above ensures a stable and reliable sealing fit between the two, effectively preventing the sealing plug 530 from loosening, shifting, or falling off during air pressure changes, assembly stress, or long-term use. This ensures that the shape and flow cross-sectional area of ​​the first air exchange gap remain constant, avoiding abnormal air passages, air leakage, or sealing failure due to loose fit.

[0059] Please see Figure 1 and Figure 3 In the embodiment where the second air passage 300 is formed by the bottom wall of the liquid storage chamber 100, the inner wall of the plug-in tube 310 is recessed outward to form a second air exchange channel 311. The second air exchange channel 311 passes through both ends of the plug-in tube 310. The outer wall of the air guide tube 520 cooperates with the second air exchange channel 311 to form a second air exchange gap. The second air exchange gap is connected to the first air exchange gap. The flow cross-sectional area of ​​the second air exchange gap is 0.01~0.08 mm². The second air exchange gap allows gas to pass through but does not allow liquid to pass through. The flow cross-sectional area of ​​the second ventilation gap is controlled within 0.01~0.08 mm², forming a micro-slit channel that allows air to pass through but not liquid. Even when the atomizer 10 is inverted, placed on its side, or shaken, and the top of the air duct 520 becomes liquid-sealed due to immersion in the atomizing liquid, preventing normal ventilation, a backup independent air path can still be formed through the second ventilation gap and the first ventilation gap. This ensures continuous pressure balance between the liquid storage chamber 100 and the outside environment, preventing insufficient oil supply or leakage to the liquid storage chamber 100 due to liquid sealing in the main air path. The design of the second ventilation gap significantly improves the ventilation reliability and environmental adaptability of the atomizer 10 under different placement postures.

[0060] The outer casing assembly can be configured to be non-invertible. Specifically, by providing a foolproof structure, a limiting structure, a grip positioning part, or an indicator on the outside of the outer casing assembly, the electronic atomizer 10 can only be held and used normally in an upright position and cannot be placed in an inverted position. This configuration can prevent the liquid storage chamber 100 from being inverted in terms of usage posture, and fundamentally prevent the atomized liquid from submerging the top of the air guide tube 520, which could cause airway liquid seal and ventilation failure, thus ensuring that the second airway 300 is always in a stable and unobstructed ventilation state.

[0061] Please see Figure 1 and Figure 3 In the embodiment where the second airway 300 is formed by the bottom wall of the liquid storage chamber 100, the diameter of the air exchange cylinder 320 can be larger than the diameter of the plug cylinder 310, and the interference fit between the sealing plug 530 and the air exchange cylinder 320 is greater than or equal to 10 N.

[0062] Increasing the diameter of the air exchange cylinder 320 and applying an interference fit of no less than 10 N can significantly improve the connection strength between the sealing plug 530 and the air exchange cylinder 320. This ensures that the sealing plug 530 can effectively overcome its own weight during long-term use without loosening, shifting, or falling off, thus ensuring a constant sealing fit position and a stable ventilation structure in the first ventilation gap. At the same time, this structure can resist the impact of airflow, air pressure fluctuations, and external forces caused by assembly stress, preventing the sealing plug 530 from shifting and causing airway sealing failure or abnormal ventilation cross-sectional area.

[0063] The electronic atomizer 10 of this application, through the synergistic structural design of dual air outlets (first air outlet 200 and second air outlet 300), multi-layer nested atomizing components 400 and ventilation components 500, establishes a strict pressure balance and leak-proof constraint mechanism from a hydrodynamic perspective. It specifically addresses the core defects of existing technologies, such as pressure imbalance, easy oil leakage, and easy dry burning. The overall technical effect is stable and quantifiable, as detailed below: The electronic atomizer 10 of this application satisfies the core leak-proof relationship through structural parameter matching: The physical meaning of this relationship is: the actual pressure difference caused by environmental pressure fluctuations is strictly less than the critical leak-proof capability of the atomizing core 470 itself, thus eliminating the oil leakage problem from the essence of fluid mechanics. It is fully adaptable to normal use and extreme environments such as aviation negative pressure, high and low temperatures, and completely solves the leakage hazards caused by sudden pressure changes.

[0064] To facilitate understanding and implementation, this application has compiled the symbols and definitions of the above-mentioned relationships and related structural parameters into the table below. These parameters are matched and work synergistically to achieve the core objectives of pressure balance and leak prevention / oil control. Table 1 Parameter Definitions and Symbol Explanations

[0065] Based on the aforementioned core relationship, this application has quantitatively defined and constrained key structural parameters, and the various parameters work together to achieve precise pressure control: This is the environmental pressure fluctuation coefficient, adapted to changes in external pressure under different scenarios; The total area of ​​vent 431 is calculated using the following formula: , representing the sum of the gas flow areas of all vents 431, is used for rapid response and balancing of the internal and external pressures of the liquid storage chamber 100, wherein The number of vent holes is 431. The diameter of the vent is 431. The total area of ​​the first ventilation gap is given by the following formula when the first ventilation gap is rectangular: W represents the width of the first ventilation gap, and L represents the length of the first ventilation gap. The width of the first ventilation gap directly determines the ventilation efficiency; the larger the width, the faster the pressure balance speed.

[0066] Total ventilation area As a core parameter for pressure balance, it satisfies the formula That is, the sum of the gas flow areas of the vent 431 and the first ventilation gap, and this application further limits the sum of the total area of ​​the vent 431 and the total area of ​​the first ventilation gap to satisfy the following: By constraining the ratio of total ventilation area to liquid inlet area, the pressure balance speed is matched with the oil supply speed, avoiding liquid accumulation and oil leakage problems caused by pressure regulation lag; among which The total area of ​​the external liquid inlet hole 411 is calculated using the following formula: , The number of external liquid inlet holes 411. The diameter of the external liquid inlet 411 directly controls the rate at which the atomizing liquid enters the atomizing core 470, thus controlling the risk of oil leakage from the source.

[0067] The critical leak-proof pressure difference of the electronic atomizer 10 in this application Satisfy the formula The critical leak-proof pressure difference is determined by the structural characteristics of the multi-layered cotton (primarily the outer 420 and middle 440 cotton), representing the maximum internal and external pressure difference that the atomizing core 470 can withstand. Exceeding this value will result in oil leakage; where... The contribution coefficient of the outer cotton density of 420 to the leak-proof capability. The outer cotton has a density of 420. The outer cotton has a wall thickness of 420. The vertical length of the outer cotton is 420. The contribution coefficient of the density of Zhongmian 440 to its leak-proof capability. It is a medium-density cotton with a density of 440. It is a medium-sized cotton 440mm thick wall. C is the vertical length of the inner cotton 440; C is a constant term superimposed by the inner cotton 460, the surface tension of the liquid inlet, and the overall structure.

[0068] In the electronic atomizer 10 of this application, the specific parameter values ​​of each structure are as follows: the number of air vents 431 is 2 to 8, and the diameter of a single air vent 431 is approximately 0.5 to 2.0 mm; the flow cross-sectional area of ​​the end of the first air passage 200 away from the interior of the liquid storage chamber 100 is approximately 4 to 12 mm² (when the end of the first air passage 200 away from the interior of the liquid storage chamber 100 is the mouthpiece); the inner diameter of the air guide tube 520 is approximately 0.5 to 2.0 mm, the flow cross-sectional area of ​​the first air exchange gap is approximately 0.1 to 2.0 mm², and the width of the first air exchange gap is approximately 0.3 to 2.0 mm; the flow cross-sectional area of ​​the end of the second air passage 300 away from the interior of the liquid storage chamber 100, which is also the flow cross-sectional area of ​​the second air exchange gap, is approximately 0.01 to 0.08 mm², and the width of the second air exchange gap is approximately 0.3 to 1.0 mm. mm; the number of external liquid inlet holes 411 is 2 to 6, and the diameter of a single external liquid inlet hole 411 is approximately 0.3 to 1.5 mm; the wall thickness of the outer cotton 420 is approximately 2.5 to 5.0 mm, the height is approximately 15 to 25 mm, and the density is approximately 0.08 to 0.20 g / cm³; the wall thickness of the middle cotton 440 is approximately 2.0 to 4.0 mm, the height is approximately 20 to 30 mm, and the density is approximately 0.06 to 0.15 g / cm³.

[0069] Based on the aforementioned quantitative relationship and structural parameters, the electronic atomizer 10 of this application achieves multiple core technical effects: First, by forming independent air paths through the first air passage 200 and the second air passage 300, and in conjunction with the ventilation component 500 and the vent 431, rapid and coordinated pressure balance is achieved inside and outside the liquid storage chamber 100, avoiding interference from mixed air path functions, resulting in moderate suction resistance, smooth aerosol discharge, and a significantly reduced failure rate under extreme conditions; Second, the vent 431 connects the multiple layers of cotton (especially the outer cotton 420 and the middle cotton 440). The pressure release channel eliminates the problem of pressure accumulation in the sealed chamber. Combined with the critical leak-proof pressure difference constraint, it ensures that the outer cotton 420 and middle cotton 440 can guide oil evenly and lock in oil stably, completely eliminating dry burning and oil splattering, extending the service life of the atomizing component 400, and ensuring a stable atomized taste. Thirdly, the overall structure is simplified. Through parameter quantification and ratio, it achieves the dual goals of leak prevention and pressure regulation. There is no need to add additional complex sealing components. It takes into account sealing and leak prevention, smooth air exchange and stable oil supply, and significantly improves the working reliability and durability of the electronic atomizer 10.

[0070] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An electronic atomizer, characterized in that, include: The outer casing assembly has a liquid storage chamber inside, and the wall of the liquid storage chamber has a first air passage and a second air passage that communicate with the outside. An atomizing component is disposed in the liquid storage chamber. The atomizing component includes an outer tube, an outer cotton, a middle tube, a middle cotton, an inner tube, an inner cotton, and an atomizing core, which are arranged sequentially from the outside to the inside. A vent hole is provided at the top of the middle tube. The vent hole is located above the outer cotton so that the space above the outer cotton is connected to the middle cotton. The space above the middle cotton is connected to the first air passage. as well as A ventilation assembly, with its two ends connected to the top of the liquid storage chamber and the second air passage, respectively; The first airway and the second airway are used to work together to balance the air pressure between the liquid storage chamber and the outside.

2. The electronic atomizer according to claim 1, characterized in that, The inner cotton covers the vent, and the inner cotton is used to increase the resistance to gas flow through the vent.

3. The electronic atomizer according to claim 1, characterized in that, The inner cotton has a concave ventilation channel on the side facing the inner tube, and the top of the ventilation channel penetrates the top wall of the inner cotton.

4. The electronic atomizer according to claim 1, characterized in that, The number of vents is 2 to 8, the diameter of a single vent is 0.5 to 2.0 mm, the flow cross-sectional area of ​​the end of the first air passage away from the interior of the liquid storage chamber is 4 to 12 mm², and the flow cross-sectional area of ​​the end of the second air passage away from the interior of the liquid storage chamber is 0.1 to 2.0 mm².

5. The electronic atomizer according to claim 4, characterized in that, The outer tube has 2 to 6 external liquid inlets, and the diameter of the external liquid inlets is 0.3 to 1.5 mm; the outer cotton has a wall thickness of 2.5 to 5.0 mm, a height of 15 to 25 mm, and a density of 0.08 to 0.20 g / cm³; the inner cotton has a wall thickness of 2.0 to 4.0 mm, a height of 20 to 30 mm, and a density of 0.06 to 0.15 g / cm³.

6. The electronic atomizer according to claim 1, characterized in that, The electronic atomizer includes: A sealing element is provided between the atomizing component and the first air passage, and the sealing element is respectively sealed to the top end of the outer tube and the top end of the middle tube. The sealing element has an opening that connects the space above the middle cotton and the first air passage. The wall of the opening is inclined from top to bottom toward the middle tube. The part of the sealing element opposite to the outer cotton is inclined from top to bottom toward the middle tube. A buffer cavity is formed between the sealing element and the outer cotton.

7. The electronic atomizer according to claim 6, characterized in that, The atomizing core has an atomizing cavity inside. The first air passage and the opening are both located above the atomizing cavity and are directly opposite the atomizing cavity. The top end of the inner tube is at least partially spaced from the wall of the opening.

8. The electronic atomizer according to claim 4, characterized in that, The ventilation assembly includes liquid-blocking cotton and an air guide tube. The liquid-blocking cotton is assembled on the top inner wall of the liquid storage chamber, and the two ends of the air guide tube are respectively connected to and communicate with the liquid-blocking cotton and the second air passage. The inner diameter of the air duct is 0.5~2.0 mm.

9. The electronic atomizer according to claim 8, characterized in that, The second airway includes an interconnected plug tube and an air exchange tube; One end of the air guide tube is sealed and inserted into the insertion tube; The inner wall of the ventilation cylinder is recessed outward to form a first ventilation channel, which extends through both ends of the ventilation cylinder. The ventilation assembly includes a sealing plug, which seals the inner wall of the ventilation cylinder. The sealing plug and the first ventilation channel cooperate to form a first ventilation gap. The first ventilation gap constitutes one end of the second air passage away from the interior of the liquid storage chamber. The flow cross-sectional area of ​​the first ventilation gap is 0.1~2.0 mm². The interference fit force between the sealing plug and the ventilation cylinder is greater than or equal to 8 N.

10. The electronic atomizer according to claim 9, characterized in that, The second air passage is formed by penetrating the bottom wall of the liquid storage cavity; The inner wall of the plug tube is recessed outward to form a second ventilation channel, which extends through both ends of the plug tube. The outer wall of the air guide tube cooperates with the second ventilation channel to form a second ventilation gap, which connects to the first ventilation gap. The flow cross-sectional area of ​​the second ventilation gap is 0.01~0.08 mm². The diameter of the air exchange cylinder is larger than the diameter of the plug cylinder, and the interference fit between the sealing plug and the air exchange cylinder is greater than or equal to 10 N.

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