Atomizing core with stable ventilation function and electronic cigarette

Abstract

A plurality of inner oil penetrating holes are formed in an inner support pipe, and ventilation grooves are formed in the inner oil penetrating holes and penetrate to the end, close to a mist outlet, of the inner support pipe; the heating piece is arranged on the inner side of the inner support pipe. The supporting structure is used for supporting the oil guide cotton. The tar guide cotton is clamped between the inner support pipe and the heating piece, the tar guide cotton is attached to the inner support pipe and used for conducting tobacco tar to be atomized by the heating piece, and the tar guide cotton and the inner support pipe form a ventilation groove; the outer support pipe is tightly sleeved on the outer side of the inner support pipe, the outer wall of the outer support pipe is connected with the oil storage bin, and the inner wall of the outer support pipe is tightly attached to the outer wall of the inner support pipe to form the outer wall of the ventilation groove. Stable oil supplementation can be ensured, and the dry burning phenomenon is prevented; oil leakage is prevented, and oil is prevented from overflowing to pollute the assembly. Air pressure adjustment is accurate, gas-liquid balance of the oil storage bin is optimized, and it is ensured that the air pressure in the oil storage bin and the external atmospheric pressure are kept at a reasonable difference value.

Description

Technical Field

[0001] This application relates to the field of electronic atomization, and more particularly to an atomizing core with stable air exchange and an electronic cigarette. Background Technology

[0002] Electronic atomizers are widely used in medical fumigation, beauty atomization, nicotine vaping, and e-cigarette industries due to their advantages such as safety, convenience, and health benefits. The atomizer coil is the core component of an electronic atomizer, responsible for transferring the e-liquid to the heating element for heating and atomization, forming usable vapor. With the increasing international consumption of electronic atomization products and increasingly stringent regulations in various countries, disposable atomization products place more stringent demands on the atomizer coil regarding smooth e-liquid supply, leak-proof operation, cost control, and quality stability.

[0003] A typical atomizing coil with a small oil reservoir is currently available on the market. It uses an integrated fiber oil reservoir between the inner and outer atomizing tubes. A continuous oil film formed after the oil is wetted acts as an airflow shield. When the pressure difference between the inside and outside of the oil reservoir reaches a set threshold, the continuous oil film breaks down, allowing airflow to enter the oil reservoir through the fiber oil reservoir, ensuring continuous transmission of oil to the atomizing area. However, this technology also has significant limitations. For example, the air exchange pressure difference fluctuates greatly. Due to assembly and tolerances inherent in the fiber oil reservoir itself, the microscopic capillary structure within the reservoir fluctuates considerably, leading to large fluctuations in the air exchange pressure difference of the atomizing coil. This can also cause some products to leak oil. Utility Model Content

[0004] The purpose of this application is to provide an atomizing core with stable air exchange.

[0005] According to one aspect of this application, 1. A stable air-exchange atomizing core, connected to an oil reservoir, characterized in that it comprises:

[0006] An inner support tube is provided with an inner oil permeation hole, and an air exchange groove is provided on the inner oil permeation hole, extending to the upper end of the inner support tube.

[0007] The heating element is disposed inside the inner support tube;

[0008] Oil-guiding cotton is sandwiched between the inner support tube and the heating element. The oil-guiding cotton is fitted to the inner support tube to form the inner wall of the ventilation groove.

[0009] An outer support tube is tightly fitted to the outside of the inner support tube, and an external oil permeation hole is provided in the area of ​​the oil permeation hole of the inner support tube. The inner wall of the outer support tube is tightly fitted to the outer wall of the inner support tube to form the outer wall of the ventilation groove.

[0010] Furthermore, the support tube has m oil perforations in the heating area, and n ventilation grooves are provided on the inner wall of the support tube. The n ventilation grooves are connected to the n oil perforations, where m > n ≥ 1.

[0011] Furthermore, the ventilation groove is either vertical or inclined or curved along the pipe wall.

[0012] Furthermore, the material of the inner support tube or the outer support tube includes at least one of metal, ceramic, and plastic.

[0013] Furthermore, the inner support tube includes an open area along the circumferential direction and a non-open area connected end-to-end with the open area. The perimeter of the open area is denoted as M1, and the perimeter of the non-open area is denoted as M2. M1 and M2 satisfy the following relationship:

[0014] M1≤0.75(M1+M2).

[0015] Furthermore, the atomizing core also includes a sealing and fixing seat, which is provided with an isolation part for supporting the oil-guiding cotton and the heating element.

[0016] Furthermore, the width of the ventilation slot is the maximum opening size in the radial direction, and the width of the ventilation slot is in the range of 50um-3000um.

[0017] Furthermore, the atomizing core also includes a cotton swab, which is inserted into and fitted within the heating element to support the heating element.

[0018] Furthermore, the cross-sectional shape of the ventilation slot is serpentine, bamboo-shaped, inverted trapezoidal, or trapezoidal.

[0019] The present invention also provides an electronic cigarette, comprising an atomizing core with stable air exchange as described in any of the above claims.

[0020] This application offers the following advantages: A capillary tube of controllable size is constructed using oil-guiding cotton and a support tube ventilation groove. This capillary tube connects to both the outside air and the oil storage tank. When the pressure difference between the oil storage tank and the outside atmospheric pressure reaches the design threshold, the outside air forces the oil in the capillary tube into the oil storage tank, ensuring stable oil replenishment and preventing dry burning; it also prevents oil leakage and avoids oil spillage that could contaminate components. Precise air pressure regulation optimizes the gas-liquid balance of the oil storage tank, ensuring that the pressure difference between the oil storage tank and the outside atmospheric pressure remains at a reasonable value. 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 from these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the atomizing core body with stable air exchange according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the exploded decomposition structure of the atomizing core body described in Embodiment 1 of this application;

[0024] Figure 3 This is a schematic diagram of the atomizing core support tube described in Embodiment 1 of this application;

[0025] Figure 4 This is an exploded view of the atomizing core body described in Embodiment 1 of this application;

[0026] Figure 5 This is a schematic diagram of the structure of the atomizing core serpentine (S-shaped) air exchange groove support tube described in Embodiment 2 of this application;

[0027] In the diagram, 100 is the atomizing core; 10 is the support tube; 11 is the inner support tube; 12 is the outer support tube; 20 is the oil-guiding cotton; 30 is the heating element; 31 is the support structure; 40 is the oil-permeable hole; 41 is the inner oil-permeable hole; 42 is the outer oil-permeable hole; 50 is the air exchange groove; 60 is the sealing and fixing seat; 61 is the isolation part; and 70 is the cotton swab. Detailed Implementation

[0028] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Please refer to Figures 1-4 One embodiment of this application provides a stable air exchange atomizing core 100, connected to an oil reservoir. The atomizing core 100 includes:

[0032] The support tube 10 includes an inner support tube 11 and an outer support tube 12.

[0033] The inner support tube 11 has several internal oil permeation holes 41, and at least one internal oil permeation hole 41 is provided with a ventilation groove 50, which extends to the end of the inner support tube 11 near the mist outlet, to facilitate ventilation. Figure 4 From this perspective, the upper end of the inner support tube 11 is the position where it connects to the mist outlet;

[0034] The heating element 30 is disposed inside the inner support tube 11, and a support structure 31 is connected to the end of the heating element 30 near the mist outlet. The support structure 31 is used to support the inner support tube 11.

[0035] Oil-guiding cotton 20 is sandwiched between the inner support tube 11 and the heating element 30. The oil-guiding cotton 20 is attached to the inner support tube 11 and is used to conduct e-liquid to the heating element 30 for atomization. The width of the oil-guiding cotton 20 is not less than the width of the heating element 30 and the support structure 31 and is used to attach to the inner support tube 11.

[0036] The outer support tube 12 is tightly fitted to the outside of the inner support tube 11. The outer wall of the outer support tube 12 is connected to the oil storage tank, and an outer oil permeation hole 42 is provided in the area near the inner oil permeation hole 41 of the inner support tube 11. The top end of the outer support tube 12 is sealed to the mist outlet, and the bottom end of the outer support tube 12 is connected to the oil storage tank seal. The inner wall of the outer support tube 12 is tightly fitted to the outer wall of the inner support tube 11 to form the outer wall of the ventilation groove 50.

[0037] The inner oil passage 41 and the outer oil passage 42 can be connected to form the same oil passage 40.

[0038] In this embodiment, it should be noted that the inner support tube 11 is a hollow tubular structure with several internal oil-permeable holes 41 on its outer wall for drawing oil from the oil storage tank. An air exchange groove 50 is provided on at least one internal oil-permeable hole 41, extending to the end of the inner support tube 11 near the mist outlet. This air exchange groove 50 provides a stable air exchange channel during atomization, ensuring even distribution of air after entering the atomization area and improving atomization efficiency. The heating element 30 is located inside the inner support tube 11 and is used to heat and atomize the e-liquid conducted by the oil-guiding cotton 20. The heating area is located in the middle of the heating element 30, in contact with the oil-guiding cotton 20, enabling efficient heating of the e-liquid and atomization. The support structure 31 is connected to the heating area and located near the mist outlet, providing additional support to prevent the heating element 30 from deforming due to heat or airflow impact during long-term use. The oil-guiding cotton 20 is sandwiched between the inner support tube 11 and the heating element 30 to guide the e-liquid from the oil storage tank into the heating element 30 for atomization. The oil-guiding cotton 20 is in close contact with the inner wall of the inner support tube 11 to avoid gaps that could cause oil leakage or uneven oil supply.

[0039] The width of the wicking cotton 20 is not less than the width of the heating element 30 and the support structure 31, ensuring a full fit with the inner support tube 11, improving oil supply stability, and preventing dry burning or burnt coil problems caused by uneven oil supply. The outer support tube 12 is tightly fitted onto the outside of the inner support tube 11 and connected to the oil storage tank. An external oil perforation hole 42 is provided at a position corresponding to the oil perforation hole 40 of the inner support tube 11, ensuring that e-liquid can flow smoothly from the oil storage tank into the wicking cotton 20. The top end of the outer support tube 12 is sealed to the mist outlet, and the bottom end is connected to the oil storage tank seal, forming a stable sealing structure to prevent oil leakage or airflow leakage. The inner wall of the outer support tube 12 is close to the outer wall of the inner support tube 11, together forming the outer wall of the ventilation groove 50. The height of the outer support tube 12 is not less than 4mm greater than that of the inner support tube 11. This design ensures the stability of the oil perforation hole 40 and avoids oil leakage. The height difference between the outer support tube 12 and the inner support tube 11 also helps to ensure sufficient oil supply and stable atomization effect. Ensure the stability of the ventilation channel to avoid airflow turbulence affecting the atomization effect.

[0040] Its specific working process includes:

[0041] Oil guiding: The e-liquid in the oil storage tank enters the oil guiding cotton 20 through the outer oil penetration hole 42 and the inner oil penetration hole 41, and is then transported to the heating element 30 by the oil guiding cotton 20.

[0042] Atomization: When the heating element 30 is powered on, the e-liquid on the oil-conducting cotton 20 evaporates due to the heat, forming atomized gas.

[0043] Air exchange: Air enters the atomizing core 100 from the air exchange slot 50 and is evenly distributed to the atomization area to ensure that the air and e-liquid atomized gas are fully mixed and improve the smoking experience.

[0044] Stable sealing: The tight fit between the outer support tube 12 and the inner support tube 11 ensures a tight seal, effectively reducing problems such as condensate leakage or airflow turbulence.

[0045] The design of the ventilation slot 50 achieves more stable ventilation, improves air circulation efficiency, and makes the vapor more delicate and uniform. The oil-guiding cotton 20 adheres to the heating element 30 and the support structure 31, enhancing the uniformity of e-liquid supply and reducing the risk of dry burning and coil clogging. The multiple sealing structures of the outer support tube 12 and the inner support tube 11 effectively prevent e-liquid leakage, improving service life and user experience. The support structure 31 of the heating element 30 enhances the overall stability of the atomizing coil 100, preventing deformation caused by prolonged high-temperature use that could affect atomization performance.

[0046] Furthermore, in an optional embodiment, the support tube 10 is provided with m oil permeable holes 40 in the heating area, and the inner wall of the support tube 10 is provided with n ventilation grooves 50, which are correspondingly connected to the n oil permeable holes 40, wherein m > n ≥ 1.

[0047] In this embodiment, the structure of the support tube 10 in the heating area is adjusted as follows: The support tube 10 has m oil-permeable holes 40 (m > 1). These holes 40 are used to introduce e-liquid from the oil storage tank. Increasing m enhances the oil supply capacity, preventing dry burning or coil burn during high-power atomization due to insufficient oil supply. The oil-permeable holes 40 are evenly distributed around the heating area to ensure that e-liquid enters the wicking cotton 20 from multiple directions, improving the uniformity of oil distribution. The inner wall of the support tube 10 has n ventilation grooves 50 (m > n ≥ 1). These grooves guide airflow, and each groove 50 corresponds to one oil-permeable hole 40, ensuring that airflow does not interfere with the oil supply path and improving ventilation stability. Since m > n, not every oil-permeable hole 40 corresponds to a ventilation groove 50. This allows for more uniform atomization by rationally allocating air channels and optimizing the direction of airflow while ensuring sufficient oil supply. The ventilation channel 50 extends from the oil permeation hole 40 area to the end of the inner support tube 11 near the mist outlet, forming a stable ventilation path that allows air to smoothly enter the atomization zone and fully mix with the atomized smoke, thus improving the taste.

[0048] Implementing the technical solution of this embodiment optimizes the e-liquid supply process: Due to the presence of m oil-permeable holes 40, e-liquid can enter the wicking cotton 20 through multiple paths, dispersing the oil-permeable load and reducing the risk of blockage in a single channel. It also optimizes the ventilation process: n ventilation channels 50 correspond to n oil-permeable holes 40, ensuring that air can enter through specific channels without interfering with the e-liquid supply path of other oil-permeable holes 40, thus improving atomization stability. Furthermore, it ensures balanced airflow: air enters along the n ventilation channels 50 and is evenly distributed around the heating element 30, enhancing airflow stability and preventing excessively strong or weak local airflow from affecting the atomization effect. Finally, it optimizes the smoke mixing process: the optimized structure allows for thorough mixing of air and smoke, improving the smoothness of the flavor and reducing the problem of condensate accumulation.

[0049] In this embodiment, the ventilation groove 50 includes the following directions: vertical, inclined along the pipe wall, and curved. The shape of the ventilation groove 50 includes: serpentine, bamboo-shaped, inverted trapezoidal, and trapezoidal.

[0050] The direction of the ventilation slot 50 can be adjusted according to airflow requirements and the structure of the atomizing core 100. This mainly includes: a vertical ventilation slot 50, which is set along the axial direction of the inner support tube 11 and leads directly to the mist outlet. Its advantages are low airflow resistance, smooth airflow, suitability for direct-inhalation atomizing cores 100, and a smooth airflow experience. A sloping ventilation slot 50, which is set at an angle along the inner support tube 11, forming a certain angle with the vertical direction. Its advantages are that when air enters, it generates a certain amount of swirling airflow, which can better mix with the atomized smoke, improve the diffusion effect of the smoke, and enhance the flavor profile. A curved ventilation slot 50, which extends non-linearly along the inner support tube 11, combined with... Figure 5 Such as an "S" shape or a wave shape. Its advantage is that it increases the airflow path, so that the airflow is fully turbulent before entering the atomization chamber, mixes fully with the smoke, reduces condensate, and prevents oil return.

[0051] The difference lies in the fact that the vertical ventilation groove 50 is suitable for large-diameter direct inhalation structures, reducing suction resistance and improving the performance of large vapor production; the ventilation groove 50 that is inclined along the tube wall is suitable for medium-power atomizing core 100, balancing vapor concentration and flavor smoothness; and the curved ventilation groove 50 is suitable for atomizing core 100 designs that prevent condensation and enhance airflow dispersion, thereby improving vapor smoothness.

[0052] Meanwhile, to improve ventilation, the shape of the ventilation channel 50 can be modified, including a serpentine ventilation channel 50, which presents a serpentine, meandering path. Its advantage lies in effectively extending the airflow channel, allowing the air to be fully turbulent before entering the atomization chamber, reducing the direct blowing sensation and improving the uniformity of the smoke. A bamboo-shaped ventilation channel 50 presents a discontinuous structure similar to bamboo joints. Its advantage is that the airflow flows in segments within the ventilation channel 50, forming different pressure zones, avoiding condensation problems caused by excessively fast airflow, and improving atomization efficiency. An inverted trapezoidal ventilation channel 50 has a narrower opening that gradually widens towards the outlet, presenting an inverted trapezoidal structure. Its advantage is that the airflow gradually accelerates as it passes through the ventilation channel 50, allowing the air and smoke to mix thoroughly, enhancing the layering and throat hit sensation. A trapezoidal ventilation channel 50 has a wider inlet that gradually narrows towards the outlet, presenting a regular trapezoidal structure. Its advantage lies in gradually reducing the velocity of incoming air, minimizing the impact of air turbulence on smoke, and improving smoothness and stability.

[0053] The difference lies in the following: the serpentine ventilation groove 50 is suitable for atomizer cores 100 that require enhanced flavor smoothness, especially nicotine salt or high VG e-liquids; the bamboo-shaped ventilation groove 50 is suitable for high-power atomizer cores 100, preventing condensation buildup and improving atomization uniformity; the inverted trapezoidal ventilation groove 50 is suitable for e-liquids that require enhanced throat hit, such as high-concentration nicotine salt e-liquids; and the trapezoidal ventilation groove 50 is suitable for atomizer cores 100 that require stable airflow and reduced draw resistance, improving user comfort.

[0054] The inner support tube 11 and the outer support tube 12 are made of at least one of the following materials: metal, ceramic, and plastic. Below are some examples of material combinations for the inner and outer support tubes 12:

[0055] 1. The inner support tube 11 is made of ceramic (such as alumina), and the outer support tube 12 is made of metal (such as stainless steel). The advantages are that the permeability of ceramic improves wicking and prevents uneven wicking. The high strength of metal provides stable structural support and improves overall durability. Suitable for high-end replaceable coil 100 users who prioritize flavor and durability.

[0056] 2. The inner support tube 11 is made of ceramic material (such as alumina), and the outer support tube 12 is also made of ceramic material (such as silicon nitride). The advantages are that the all-ceramic structure improves heat resistance, making it suitable for high-temperature atomization and reducing the risk of e-liquid carbonization. The insulating properties of ceramic avoid leakage or short-circuit problems associated with metal structures. It is suitable for flavor-oriented atomizer cores 100, enhancing e-liquid flavor and providing high fidelity.

[0057] 3. The inner support tube 11 is made of metal (such as stainless steel) using sheet metal processing, while the outer support tube 12 is made of plastic (such as PCTG). The advantage of this design is that the thermal conductivity of metal ensures rapid heating of the atomizer core 100, improving atomization efficiency. The plastic outer support tube 12 reduces overall weight and avoids the potential impact of direct metal contact with e-liquid. This design is suitable for disposable e-cigarettes or lightweight atomizer cores 100.

[0058] 4. The inner support tube 11 is made of plastic (such as PEEK), and the outer support tube 12 is made of ceramic (such as alumina). The advantages are that PEEK plastic has good high-temperature resistance and chemical stability, making it suitable for long-term high-temperature atomization environments. The permeability of ceramic enhances the stability of e-liquid supply, allowing the e-liquid to penetrate evenly into the wicking cotton 20. Suitable for low-to-medium power atomizer coils 100, balancing flavor and production cost.

[0059] In an optional embodiment, the inner support tube 11 includes an open area along the circumferential direction and a non-open area connected end-to-end with the open area. The perimeter of the open area is denoted as M1, and the perimeter of the non-open area is denoted as M2. M1 and M2 satisfy the following relationship:

[0060] M1≤0.75(M1+M2).

[0061] In this embodiment, the inner support tube 11 is structurally optimized to have an open area and a non-open area along the circumference. The perimeter M1 of the open area is the total perimeter of the oil-permeable holes 40, and the perimeter M2 of the non-open area is the total perimeter of the solid structure. Implementing this embodiment has the following advantages: 1. Ensuring structural strength: If M1 is too large, too many openings may reduce the mechanical strength of the inner support tube 11, affecting overall stability and even causing damage during assembly or use. An appropriate non-open area (M2) can provide sufficient support to prevent deformation or breakage. 2. Optimizing oil guiding and air exchange: Too many openings may lead to uneven e-liquid flow, affecting oil supply stability. An appropriate non-open area (M2) can effectively guide airflow, reduce turbulence, and improve atomization. 3. Preventing oil leakage and dry burning: Too many openings (larger M1) may increase the risk of e-liquid leakage, affecting the safety of electronic components. An appropriate non-open area (M2) can form a good capillary effect, improving oil guiding efficiency and reducing dry burning.

[0062] Furthermore, the atomizing core 100 also includes: a sealing and fixing base 60. The oil-guiding cotton 20 is generally formed by connecting multiple layers of rectangular cotton through the wide sides on both sides. Therefore, there will be a seam area at the contact position of the two sides. The seam area of ​​the oil-guiding cotton 20 is staggered from the opening area. The sealing and fixing base 60 is provided with an isolation part 61, which is used to support the oil-guiding cotton 20 and the heating element 30.

[0063] In this embodiment, the sealing and fixing seat 60 is located at the bottom of the atomizing core 100 or in the area of ​​the support structure 31, used to fix the oil-guiding cotton 20 and the heating element 30, improving sealing and support. The seam area of ​​the oil-guiding cotton 20 is located in the closed area M2. Since the oil-permeable hole 40 is the main flow path of e-liquid, if the seam of the oil-guiding cotton 20 is exactly aligned with the oil-permeable hole 40, e-liquid may leak directly from the seam, causing leakage problems. The staggered design can seal the seam area around the oil-permeable hole 40, reducing the risk of oil leakage and improving sealing.

[0064] The sealing and fixing seat 60 helps to fix the oil-guiding cotton 20, preventing it from shifting or collapsing due to thermal expansion and contraction, oil immersion, etc., during long-term use, which could lead to abnormal oil supply. It ensures the fit of the oil-guiding cotton 20 and improves oil guiding efficiency. It also supports the heating element 30, which may deform slightly under high-temperature operation; the sealing and fixing seat 60 provides additional support to prevent loosening or displacement. Furthermore, it improves sealing performance; the sealing and fixing seat 60 forms a closed structure with the outer support tube 12 or the oil storage tank, reducing the risk of e-liquid evaporation and leakage.

[0065] The sealing base 60 is provided with an isolation section 61, which supports the wicking cotton 20 and the heating element 30, ensuring their stability during operation. The isolation section 61 of the sealing base 60 can adopt different shapes to accommodate different types of atomizing coils 100. For example, a ring-shaped isolation section 61 surrounds the heating element 30 and the wicking cotton 20, providing 360° stable support. This is suitable for mainstream high-vapor atomizing coils 100, ensuring stable wicking supply. A partial support isolation section 61 is placed only at key support points of the wicking cotton 20, improving local stability while reducing material usage. This is suitable for small flavor-oriented atomizing coils 100, such as slim vapor or pod-based e-cigarettes. A multi-layer isolation section 61, employing a multi-layer structure, supports the wicking cotton 20, the heating element 30, and the air passage separately, optimizing overall stability. This is suitable for high-power, multi-layer wicking coils 100, such as ceramic coils 100 or dual-coil coils 100.

[0066] In one specific embodiment, the width of the ventilation channel 50 is the maximum radial opening size, and the width of the ventilation channel 50 is in the range of 50μm-600μm, adapted to the viscosity and surface tension characteristics of the e-liquid. Specifically, the width range of the ventilation channel 50 is set between 50μm and 600μm to adapt to e-liquids with different viscosities and surface tensions: Low viscosity e-liquids (thin e-liquids): The ventilation channel 50 can adopt a smaller width, such as 50μm-800μm, suitable for high VG e-liquids and low temperature environments, to avoid excessively rapid oil penetration, causing oil leakage or oil accumulation. Medium viscosity e-liquids: The width of the ventilation channel 50 can be set to 200μm-2000μm, suitable for classic nicotine salt e-liquids, ensuring a stable e-liquid supply while providing sufficient air passage. High viscosity e-liquid (thick oil): The air exchange channel width can be increased to 500μm-3000μm, which is suitable for high PG oil and high atomization power scenarios, ensuring that the e-liquid can be smoothly introduced into the atomization area and will not cause oil cut-off or dry burning due to excessive viscosity.

[0067] In one specific embodiment, the atomizing core 100 further includes a cotton swab 70. The cotton swab 70 serves as an important forming mold in the processing of the atomizing core 100, providing support for the shaping of the oil-guiding cotton 20 and the heating element 30, and protecting the internal stability of the atomizing core 100 during storage and transportation. The atomizing core 100 can be removed after being assembled into the cartridge or silicone.

[0068] In one optional embodiment, the wicking cotton 20 is a one-piece wicking cotton 20. This embodiment provides an atomizer core 100 using a one-piece wicking cotton 20. Compared with the traditional segmented wicking cotton 20, the one-piece structure can provide a more uniform e-liquid supply effect, reduce the problem of uneven e-liquid supply or leakage, and improve the stability and service life of the atomizer core 100.

[0069] like Figure 5 As shown, in one optional embodiment, the support tube 10 in this application is not divided into inner and outer parts, but is designed as an integral support tube 10. The support tube 10 is provided with a plurality of inner oil-permeable holes 41, and an air exchange groove 50 is provided on at least one oil-permeable hole 40. The air exchange groove 50 is provided on the inner wall of the support tube 10 and extends to the end of the support tube 10 near the mist outlet. The heating element 30 is provided on the inner side of the support tube 10, including a heating area and a support structure 31 connected to the heating area near the mist outlet. The support structure 31 is used to support the support tube 10. The oil-guiding cotton 20 is sandwiched between the support tube 10 and the heating element 30. The oil-guiding cotton 20 is fitted to the support tube 10 and is used to conduct e-liquid for atomization by the heating element 30. The width of the oil-guiding cotton 20 is not less than the width of the heating element 30 and the support structure 31 and is used to fit the support tube 10.

[0070] The support tube 10 has no inner or outer distinction, which simplifies the structure and makes assembly and production more convenient. By eliminating the mating gap between the inner and outer support tubes 12, oil leakage or seepage problems caused by assembly errors are avoided. High-precision manufacturing processes can be used to ensure the structural integrity of the support tube 10 and improve the sealing effect.

[0071] This invention also provides an electronic cigarette, comprising the atomizing core 100 with stable air exchange provided in any of the above claims. A capillary tube of controllable size is constructed through the oil-guiding cotton 20 and the air exchange groove 50 of the support tube 10. The capillary tube is connected to both the outside air and the oil reservoir. When the pressure difference between the air pressure in the oil reservoir and the outside atmospheric pressure reaches a designed threshold, the outside air forces the oil in the capillary tube into the oil reservoir, ensuring stable oil replenishment, preventing dry burning, and preventing oil leakage to avoid contaminating the components. Precise air pressure regulation optimizes the gas-liquid balance of the oil reservoir, ensuring that the air pressure in the oil reservoir and the outside atmospheric pressure remain at a reasonable difference.

[0072] The embodiments described above are merely examples of several implementations of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A stable venting atomizing core connected with an oil reservoir, characterized in that, The utility model relates to a stable ventilation atomizing core, comprising: An inner support pipe is provided with an inner oil hole, and a ventilation groove is arranged on the inner oil hole and penetrates to the upper end of the inner support pipe; A heating element is arranged inside the inner support pipe; An oil guide cotton is clamped between the inner support pipe and the heating element, and the oil guide cotton is arranged in close contact with the inner support pipe to form the inner wall of the ventilation groove; An outer support pipe is tightly connected to the outer side of the inner support pipe and is provided with an outer oil hole in the area of the inner oil hole of the inner support pipe, and the inner wall of the outer support pipe is in close contact with the outer wall of the inner support pipe to form the outer wall of the ventilation groove.

2. The stable, vented, atomizing wick of claim 1, wherein, The inner support pipe is provided with m oil holes in the heating area, and the inner wall of the inner support pipe is provided with n ventilation grooves corresponding to the n oil holes, wherein m > n ≥ 1.

3. The stable, vented, atomizing wick of claim 1, wherein, The ventilation groove is vertically slotted or slotted along the pipe wall.

4. The stable, vented, atomizing wick of claim 1, wherein, The material of the inner support pipe or the outer support pipe includes at least one of metal, ceramic and plastic.

5. The stable, vented, atomizing wick of claim 1, wherein, The inner support pipe includes an open hole area and a non-open hole area connected end to end along the circumferential direction, the circumference of the open hole area is denoted as M1, and the circumference of the non-open hole area is denoted as M2, and the M1 and M2 satisfy the relationship: M1≤0.75(M1+M2).

6. The stable, vented, atomizing wick of claim 1, wherein, The atomizing core further comprises a sealing fixing seat provided with a separation part for supporting the oil guide cotton and the heating element.

7. The stable, vented, atomizing wick of claim 1, wherein, The width of the ventilation groove is the maximum opening size in the radial direction, and the width of the ventilation groove is in the range of 50um-3000um.

8. The stable, vented, atomizing wick of claim 1, wherein, The atomizing core further comprises a cotton rod inserted and arranged in close contact in the heating element to support the heating element.

9. The stable, vented, atomizing wick of claim 1, wherein, The cross-sectional shape of the ventilation groove is serpentine, bamboo joint, inverted trapezoidal or trapezoidal.

10. An electronic cigarette, characterized by The utility model relates to a stable ventilation atomizing core, comprising: An inner support pipe is provided with an inner oil hole, and a ventilation groove is arranged on the inner oil hole and penetrates to the upper end of the inner support pipe; A heating element is arranged inside the inner support pipe; An oil guide cotton is clamped between the inner support pipe and the heating element, and the oil guide cotton is arranged in close contact with the inner support pipe to form the inner wall of the ventilation groove; An outer support pipe is tightly connected to the outer side of the inner support pipe and is provided with an outer oil hole in the area of the inner oil hole of the inner support pipe, and the inner wall of the outer support pipe is in close contact with the outer wall of the inner support pipe to form the outer wall of the ventilation groove. The inner support pipe is provided with m oil holes in the heating area, and the inner wall of the inner support pipe is provided with n ventilation grooves corresponding to the n oil holes, wherein m > n ≥ 1. The ventilation groove is vertically slotted or slotted along the pipe wall. The material of the inner support pipe or the outer support pipe includes at least one of metal, ceramic and plastic. The inner support pipe includes an open hole area and a non-open hole area connected end to end along the circumferential direction, the circumference of the open hole area is denoted as M1, and the circumference of the non-open hole area is denoted as M2, and the M1 and M2 satisfy the relationship: M1≤0.75(M1+M2). The atomizing core further comprises a sealing fixing seat provided with a separation part for supporting the oil guide cotton and the heating element. The width of the ventilation groove is the maximum opening size in the radial direction, and the width of the ventilation groove is in the range of 50um-3000um. The atomizing core further comprises a cotton rod inserted and arranged in close contact in the heating element to support the heating element. The cross-sectional shape of the ventilation groove is serpentine, bamboo joint, inverted trapezoidal or trapezoidal. The utility model relates to a stable ventilation atomizing core, comprising: An inner support pipe is provided with an inner oil hole, and a ventilation groove is arranged on the inner oil hole and penetrates to the upper end of the inner support pipe; A heating element is arranged inside the inner support pipe; An oil guide cotton is clamped between the inner support pipe and the heating element, and the oil guide cotton is arranged in close contact with the inner support pipe to form the inner wall of the ventilation groove; An outer support pipe is tightly connected to the outer side of the inner support pipe and is provided with an outer oil hole in the area of the inner oil hole of the inner support pipe, and the inner wall of the outer support pipe is in close contact with the outer wall of the inner support pipe to form the outer wall of the ventilation groove. The inner support pipe is provided with m oil holes in the heating area, and the inner wall of the inner support pipe is provided with n ventilation grooves corresponding to the n oil holes, wherein m > n ≥ 1. The ventilation groove is vertically slotted or slotted along the pipe wall. The material of the inner support pipe or the outer support pipe includes at least one of metal, ceramic and plastic. The inner support pipe includes an open hole area and a non-open hole area connected end to end along the circumferential direction, the circumference of the open hole area is denoted as M1, and the circumference of the non-open hole area is denoted as M2, and the M1 and M2 satisfy the relationship: M1≤0.75(M1+M2). The atomizing core further comprises a sealing fixing seat provided with a separation part for supporting the oil guide cotton and the heating element. The width of the ventilation groove is the maximum opening size in the radial direction, and the width of the ventilation groove is in the range of 50um-3000um. The atomizing core further comprises a cotton rod inserted and arranged in close contact in the heating element to support the heating element. The cross-sectional shape of the ventilation groove is serpentine, bamboo joint, inverted trapezoidal or trapezoidal. The utility model relates to a stable ventilation atomizing core, comprising: An inner support pipe is provided with an inner oil hole, and a ventilation groove is arranged on the inner oil hole and penetrates to the upper end of the inner support pipe; A heating element is arranged inside the inner support pipe; An oil guide cotton is clamped between the inner support pipe and the heating element, and the oil guide cotton is arranged in close contact with the inner support pipe to form the inner wall of the ventilation groove; An outer support pipe is tightly connected to the outer side of the inner support pipe and is provided with an outer oil hole in the area of the inner oil hole of the inner support pipe, and the inner wall of the outer support pipe is in close contact with the outer wall of the inner support pipe to form the outer wall of the ventilation groove. The inner support pipe is provided with m oil holes in the heating area, and the inner wall of the inner support pipe is provided with n ventilation grooves corresponding to the n oil holes, wherein m > n ≥ 1. The ventilation groove is vertically slotted or slotted along the pipe wall. The material of the inner support pipe or the outer support pipe includes at least one of metal, ceramic and plastic. The inner support pipe includes an open hole area and a non-open hole area connected end to end along the circumferential direction, the circumference of the open hole area is denoted as M1, and the circumference of the non-open hole area is denoted as M2, and the M1 and M2 satisfy the relationship: M1≤0.75(M1+M2). The atomizing core further comprises a sealing fixing seat provided with a separation part for supporting the oil guide cotton and the heating element. The width of the ventilation groove is the maximum opening size in the radial direction, and the width of the ventilation groove is in the range of 50um-3000um. The atomizing core further comprises a cotton rod inserted and arranged in close contact in the heating element to support the heating element. The cross-sectional shape of the ventilation groove is serpentine, bamboo joint, inverted trapezoidal or trapezoidal. The utility model relates to a stable ventilation atomizing core, comprising: An inner support pipe is provided with an inner oil hole, and a ventilation groove is arranged on the inner oil hole and penetrates to the upper end of the inner support pipe; A heating element is arranged inside the inner support pipe; An oil guide cotton is clamped between the inner support pipe and the heating element, and the oil guide cotton is arranged in close contact with the inner support pipe to form the inner wall of the ventilation groove; An outer support pipe is tightly connected to the outer side of the inner support pipe and is provided with an outer oil hole in the area of the inner oil hole of the inner support pipe, and the inner wall of the outer support pipe is in close contact with the outer wall of the inner support pipe to form the outer wall of the ventilation groove. The inner support pipe is provided with m oil holes in the heating area, and the inner wall of the inner support pipe is provided with n ventilation grooves corresponding to the n oil holes, wherein m > n ≥ 1. The ventilation groove is vertically slotted or slotted along the pipe wall. The material of the inner support pipe or the outer support pipe includes at

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