Oiling electronic cigarette cartridge atomization assembly supporting inverted smoking and electronic cigarette

Abstract

The utility model relates to an oil-injectable electronic cigarette cartridge atomization assembly supporting inverted smoking and an electronic cigarette. The atomization assembly comprises an atomization core body, a drawing type silicone tube and elastic buffering oil storage cotton. The atomizing core body comprises an outer pipe, an inner pipe, a heating piece and oil guide cotton. A first oil penetrating hole communicated with an oil bin is formed in an outer pipe of the atomizing core body, a gap is formed between the outer pipe and the inner pipe, one end of the gap is communicated with an external gas path, and the other end of the gap is communicated with the oil bin through the first oil penetrating hole; the elastic buffering oil storage cotton is arranged at the bottom of the outer pipe in a sleeved mode, and the drawing type silicone tube is arranged at the air outlet end of the atomizing core body in a sleeved mode from top to bottom and seals the first oil penetrating hole of the outer pipe. During use, the drawing type silicone tube is pulled upwards, the elastic buffering oil storage cotton rebounds and expands, oil leakage is avoided, pressure relief is stable, inverted suction is supported, and great technical significance is achieved for reducing cost, improving product stability and improving consumption experience.

Description

Technical Field

[0001] This application relates to the field of electronic device atomization technology, and in particular to an electronic device atomization device that matches a fiber-free oil-retaining cotton. Background Technology

[0002] The atomizing component of an e-cigarette is its core part, responsible for transferring e-liquid to the heating element for heating and atomization, forming the vapor inhaled by the user. With the increasing international consumption of e-cigarettes and increasingly stringent regulations in various countries, refillable e-cigarettes are gaining a larger market share. Currently, most refillable e-cigarette cartridges use a dual-layer atomizing tube structure. This structure involves installing wicking cotton and a heating mesh on the inner side of the inner tube, securing the wicking cotton seam through a notch in the inner tube, then covering the outer side of the inner tube with outer cotton, and finally fitting the outer tube. Both the inner and outer tubes have perforations for wicking, while the outer cotton serves to seal and allow for ventilation.

[0003] On the one hand, this double-tube plus outer cotton structure has a large air exchange pressure difference fluctuation because it is difficult to maintain precise assembly of the outer cotton. Both the inner and outer tubes need to undergo precise machining, grinding, and electroplating, resulting in large dimensional tolerance fluctuations and high costs. In particular, the outer cotton has poor support in the inner cavity of the outer tube and the notch area of ​​the inner tube, and it is easy to leak oil due to reverse air replenishment after assembly. As a result, it is difficult for finished electronic cigarettes to pass environmental tests.

[0004] On the other hand, refillable e-liquid cartridges do not have e-liquid reservoirs. When inverted, if the e-liquid cannot submerge the inlet of the atomizer tube, the horizontal or inverted vaping can easily result in insufficient e-liquid supply, causing the atomizer core to burn and spoil, which greatly affects the user experience.

[0005] Therefore, developing an atomizing component that is leak-proof, has stable pressure relief, and supports inverted inhalation, for the refillable e-liquid cartridges on the market, is of great technical significance for reducing costs, improving product stability, and enhancing the consumer experience. Utility Model Content

[0006] The purpose of this application is to provide an atomizing component that is leak-proof, has stable pressure relief, and supports inverted inhalation, for refillable e-cigarette cartridges on the market.

[0007] According to one aspect of this application, an atomizing component for an e-cigarette cartridge that supports inverted inhalation is provided. The atomizing component includes an atomizing core body, a pull-out silicone tube, and an elastic buffer oil storage cotton. The atomizing core body includes: an outer tube with one end connected to an external air passage, an inner tube sleeved inside the outer tube, a heating element disposed inside the inner tube, and oil-guiding cotton sandwiched between the inner tube and the heating element.

[0008] The outer tube of the atomizing core body has a first oil passage hole that communicates with the oil tank. A gap is formed between the outer tube and the inner tube. One end of the gap is connected to the external air passage, and the other end is connected to the oil tank through the first oil passage hole, so as to form at least a first pressure relief channel that connects the oil tank and the outside through the gap and the first oil passage hole.

[0009] An elastic buffer oil storage cotton sleeve is placed at the bottom of the outer tube, and the pull-out silicone tube is sleeved from top to bottom at the air outlet end of the atomizing core body, sealing the first oil-permeable hole of the outer tube.

[0010] More preferably, one end of the inner tube is connected to the external air passage, and a second oil perforation is formed on the inner tube, which is connected to the first oil perforation, so as to form a second pressure relief channel that connects the oil tank and the outside through the inner tube, the heating element, the oil guide cotton, the second oil perforation and the first oil perforation.

[0011] The e-liquid in the tank flows into the gap through the first oil permeation hole to block the air passage between the outside and the tank. When the user inhales the e-cigarette and consumes the e-liquid in the tank, a negative pressure is formed inside the tank. The e-liquid blocked in the gap is broken down by the outside air under the action of the negative pressure, thus clearing the first pressure relief channel.

[0012] More preferably, let Q be the negative pressure value that causes outside air to break down the e-liquid blocking the gap, and let T be the size of the gap, satisfying the following relationship:

[0013] Q≤-500Pa;

[0014] 5um≤T≤40um.

[0015] More preferably, when viewed along the axial direction of the inner tube, the inner tube includes: an open area and a non-open area connected end to end thereto, the number of second oil passage holes is at least one, and at least one second oil passage hole is disposed in the open area, and the seam area of ​​the oil-guiding cotton is attached to the non-open area.

[0016] Let M1 be the area of ​​the region with openings and M2 be the area of ​​the region without openings, satisfying the following relationship:

[0017] 0.2(M1+M2)≤M2≤0.5(M1+M2).

[0018] More preferably, the inner tube includes: a positioning ring extending inward from the inner wall of the inner tube, and one end of the oil-guiding cotton abuts against the positioning ring;

[0019] The inner tube further includes a fixing part extending outward from the outer wall of the inner tube. When the inner tube is nested inside the outer tube, the fixing part cooperates with the inner wall of the outer tube to seal.

[0020] More preferably, the pull-out silicone tube includes an upper section, a middle section, and a lower section. The lower and middle sections are hollow tubes, while the upper section is a solid, long, thin strip. The lower section is fitted over the outside of the atomizing core body and covers the first oil-permeable hole. The hollow section connecting the middle and upper sections is designed as an elastic structure that is easy to break. Before the electronic cigarette is unpacked and vaping begins, the upper section is pulled out until it separates from the middle section to remove the cover from the first oil-permeable hole, allowing the first oil-permeable hole of the outer tube of the atomizing core body to communicate with the oil tank. After the upper and middle sections separate, the mist outlet of the mouthpiece is unobstructed.

[0021] More preferably, the elastic buffer oil-retaining cotton is fitted under the lower section of the pull-out silicone tube. After the atomizing component is assembled with the cartridge, the elastic buffer oil-retaining cotton is located between the seal at the bottom of the cartridge and the pull-out silicone tube and is in a compressed state. When the pull-out silicone tube is pulled up, the elastic buffer oil-retaining cotton rebounds and expands, covering the first oil-permeable hole.

[0022] The elastic cushioning oil-absorbing cotton is made from at least one of the following raw materials: porous sponge, hot-air cotton, yarn-type oil-absorbing cotton, needle-punched cotton, and washed cotton, and is die-cut. Its bulk density ρ ≤ 0.06 g / cm³ 3 .

[0023] More preferably, the number of first oil passage holes is at least one, and at least one first oil passage hole is evenly distributed on the outer tube, and when viewed along the axial direction perpendicular to the inner tube, there is an overlapping portion between at least one first oil passage hole and a second oil passage hole.

[0024] More preferably, the atomizing core body further includes:

[0025] The sealing seat is located at the other end of the outer tube and on the side of the positioning ring away from the oil-guiding cotton.

[0026] The isolation rod passes through the sealing seat and is inserted into the seam area between the oil-wicking cotton and the heating element.

[0027] According to another aspect of this application, an electronic cigarette is provided, including the aforementioned inverted inhalation refillable electronic cigarette cartridge atomizing assembly.

[0028] This application has the following beneficial effects:

[0029] By creating a gap between the inner and outer tubes, a first pressure relief channel is formed, connecting the e-liquid tank and the outside environment via the gap and the first oil-permeable hole. This provides the atomizer core with another pressure relief channel besides the one via the wicking cotton, ensuring a stable and reliable e-liquid supply and full utilization of the e-liquid. It also reduces costs and increases efficiency compared to existing dual-layer atomizer tube technology. After the atomizer core is assembled, an elastic buffer wicking cotton is fitted to the bottom of the outer tube, and a pull-out silicone tube is fitted from top to bottom to the air outlet end of the atomizer core, sealing the first oil-permeable hole of the outer tube. During use, pulling up the pull-out silicone tube causes the elastic buffer wicking cotton to expand and cover the first oil-permeable hole of the atomizer core. Therefore, even when inhaled upside down or horizontally, although the e-liquid cannot completely submerge the first oil-permeable hole of the atomizer core, the elastic buffer wicking cotton covers it, maintaining the pressure balance of the e-liquid tank. This ensures normal e-liquid supply even when the user inhales horizontally or upside down, improving the user experience. Attached Figure Description

[0030] 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.

[0031] Figure 1 This is a three-dimensional structural diagram of the atomizing core body described in Embodiment 1 of this application;

[0032] Figure 2 This is a schematic diagram of the exploded decomposition structure of the atomizing core body described in Embodiment 1 of this application;

[0033] Figure 3 This is a front view of the atomizing core body described in Embodiment 1 of this application;

[0034] Figure 4 for Figure 3 Schematic diagram of the cross section at point AA;

[0035] Figure 5 for Figure 4 A magnified view of a portion of point C in the middle;

[0036] Figure 6 for Figure 4 A magnified view of a portion of point D in the middle;

[0037] Figure 7 This is a schematic diagram illustrating the principle of how e-liquid flows through the first oil-permeable hole into the gap to block the air passage between the outside and the oil tank in Embodiment 1 of this application.

[0038] Figure 8This is a schematic diagram illustrating the principle of how the e-liquid blocked in the gap is broken down by the outside air under negative pressure in Embodiment 1 of this application, thereby clearing the first pressure relief channel.

[0039] Figure 9 This is a schematic diagram illustrating the working principle of the first and second pressure relief channels in Embodiment 1 of this application.

[0040] Figure 10 for Figure 3 Schematic diagram of the cross section at point BB;

[0041] Figure 11 This is a schematic diagram of the inner tube as described in Embodiment 1 of this application, cut along its axial direction.

[0042] Figure 12 This is a three-dimensional structural diagram of the atomizing component described in Embodiment 2 of this application;

[0043] Figure 13 This is a schematic diagram of the exploded decomposition structure of the atomizing component described in Embodiment 2 of this application;

[0044] Figure 14 This is a schematic diagram illustrating the principle of the elastic buffer oil storage cotton in a compressed state as described in Embodiment 2 of this application;

[0045] Figure 15 This is a schematic diagram illustrating the principle of the elastic buffer oil storage cotton after its rebound expansion as described in Embodiment 2 of this application;

[0046] Explanation of icon numbers:

[0047] 100. Atomizer core body; 200. External environment; 10. Outer tube; 20. Inner tube; 30. Heating element; 40. Oil guide cotton; 300. Oil tank; 11. First oil passage hole; 50. Gap; 61. First pressure relief channel; 21. Second oil passage hole; 62. Second pressure relief channel; F1. Axial direction; 22. Opening area; 23. Non-opening area; 24. Positioning ring; 25. Fixing part; 70. Sealing seat; 80. Isolation rod; 310. E-liquid; 400. Atomizing assembly; 410. Pull-out silicone tube; 420. Elastic buffer oil storage cotton; 101. Air outlet end; 4111. Upper section; 4112. Middle section; 4113. Lower section; 102. Mist outlet hole; 510. Sealing element. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] 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.

[0051] Example 1

[0052] Please refer to Figure 1 - Figure 11 This embodiment provides an e-cigarette cartridge atomizer core body 100, which includes an outer tube 10, an inner tube 20, a heating element 30, and an oil-guiding cotton 40.

[0053] Specifically, one end of the outer tube 10 is connected to the external air passage 200, the inner tube 20 is fitted inside the outer tube 10, the heating element 30 is installed inside the inner tube 20, and the oil-guiding cotton 40 is sandwiched between the inner tube 20 and the heating element 30.

[0054] The outer pipe 10 has a first oil passage hole 11 that communicates with the oil tank 300. A gap 50 is formed between the outer pipe 10 and the inner pipe 20. One end of the gap 50 is connected to the air passage of the outside 200, and the other end is connected to the oil tank 300 through the first oil passage hole 11, so as to form at least a first pressure relief channel 61 that connects the oil tank 300 and the outside 200 through the gap 50 and the first oil passage hole 11.

[0055] More preferably, one end of the inner tube 20 is connected to the external air passage 200, and a second oil passage 21 is formed on the inner tube 20, which is connected to the first oil passage 11, so as to form a second pressure relief channel 62 that connects the oil tank 300 and the external air passage 200 through the inner tube 20, the heating element 30, the oil guide cotton 40, the second oil passage 21 and the first oil passage 11.

[0056] In this embodiment, the outer tube 10 is a circular straight tube with uniform thickness, the diameter of the first oil passage 11 is between 1mm and 3mm, and the length of the outer tube 10 is greater than the length of the inner tube 20.

[0057] More preferably, the e-liquid 310 in the oil tank 300 flows into the gap 50 through the first oil permeation hole 11 to block the air passage between the outside 200 and the oil tank 300. When the user inhales the e-cigarette and consumes the e-liquid 310 in the oil tank 300, a negative pressure is formed in the oil tank 300. The e-liquid 310 blocked in the gap 50 is broken down by the outside air 200 under the action of the negative pressure, so as to clear the first pressure relief channel 61.

[0058] The first pressure relief channel 61 is formed by the gap 50 between the outer tube 10 and the inner tube 20 and the first oil permeation hole 11. When negative pressure is generated in the oil tank 300, the first pressure relief channel 61 allows outside air 200 to enter the oil tank 300 through the connection of the gap 50 and the first oil permeation hole 11, restoring pressure balance and ensuring that the e-liquid 310 can flow smoothly to the oil guide cotton 40 and be atomized.

[0059] The first pressure relief channel 61 utilizes the surface tension of the gap 50 to block the e-liquid 310 under normal conditions, forming a seal. Only when the negative pressure reaches a certain level will the outside air 200 break through the e-liquid 310 and replenish the oil tank 300. This ensures that the e-liquid 310 will not leak out when stationary, and also avoids the problem of oil supply interruption caused by prolonged closure of the air passage.

[0060] Furthermore, the first pressure relief channel 61 is based on the gap 50 between the outer tube 10 and the inner tube 20, and does not require additional parts or complex processing technology. Its structure is simple and easy to assemble, which helps to reduce manufacturing costs.

[0061] More preferably, the second pressure relief channel 62 is connected to the first oil permeation hole 11 through the second oil permeation hole 21 on the inner tube 20, and is further connected to the heating element 30 and the oil-guiding cotton 40. The second pressure relief channel 62 forms a more direct air path through the inner tube 20, the heating element 30 and the oil-guiding cotton 40. When the first pressure relief channel 61 is unable to replenish air in time due to the adhesion of e-liquid 310 in the gap 50, the second pressure relief channel 62 serves as an auxiliary passage, allowing outside air 200 to enter the oil tank 300 more quickly, ensuring the continuity of the oil supply process.

[0062] The two pressure relief channels complement each other, jointly reducing the negative pressure in the oil tank 300, ensuring that the e-liquid 310 can continuously flow to the guide cotton 40 and be atomized through the heating element 30. This dual-channel design makes the e-liquid supply more stable, avoiding problems such as insufficient e-liquid supply or incomplete atomization.

[0063] A single pressure relief channel may be limited by assembly tolerances or the adhesion of e-liquid 310, leading to channel blockage. The dual-channel design provides multiple safeguards; even if one channel is temporarily blocked, the other channel can still maintain a balance of airflow and e-liquid supply. This dual-channel design ensures timely pressure relief and a stable supply of e-liquid 310 under different usage conditions (such as high-frequency vaping or prolonged inactivity), preventing dry burning or leakage issues.

[0064] Understandably, by adjusting the width of the gap 50 in the first pressure relief channel 61 or the size and distribution of the second oil permeation hole 21, the requirements of oil tanks 300 and atomizing core bodies 100 of different specifications can be met, thereby improving the versatility of the structure and the flexibility of the design.

[0065] More preferably, let Q be the negative pressure value that causes the outside air to break down the blockage of the e-liquid 310 in the gap 50, and let T be the size of the gap 50, satisfying the following relationship:

[0066] Q≤-500Pa;

[0067] 5um≤T≤40um.

[0068] In this embodiment, T = 30 μm. When T = 30 μm, the width of the gap 50 can adapt to the physical properties (such as viscosity and surface tension) of the e-liquid 310 under negative pressure, ensuring rapid pressure release under the condition of Q ≤ -500 Pa. This value can prevent the oil tank 300 from frequently releasing pressure when the pressure is not low enough, and at the same time replenish air in time when the negative pressure is too high, maintaining the continuity and stability of the e-liquid 310 supply.

[0069] If T is less than 30μm (e.g., close to 5μm), the negative pressure value may need to be further reduced to break down the e-liquid 310, delaying the pressure relief trigger time; while if it is greater than 30μm (e.g., close to 40μm), the pressure relief may be triggered prematurely, affecting the stability of the e-liquid supply in the e-liquid tank 300.

[0070] More preferably, when viewed along the axial direction F1 of the inner tube 20, the inner tube 20 includes: an open area 22 and a non-open area 23 connected end to end thereto, the number of second oil passage holes 21 is at least one, and at least one second oil passage hole 21 is disposed in the open area 22, and the seam area of ​​the oil-guiding cotton 40 is attached to the non-open area 23.

[0071] More preferably, the area of ​​the perforated region 22 is denoted as M1, and the area of ​​the non-perforated region 23 is denoted as M2, satisfying the following relationship:

[0072] 0.2(M1+M2)≤M2≤0.5(M1+M2).

[0073] During the assembly of the wicking cotton 40, ensuring the seam area fits snugly within the non-perforated area 23 effectively prevents e-liquid 310 from leaking from the seam of the wicking cotton 40 to other parts, thereby improving the overall sealing of the atomizer core 100. If M2 is too small: the non-perforated area 23 cannot fully cover the seam of the wicking cotton 40, increasing the risk of leakage.

[0074] If M2 is too large: although it can improve the sealing, it will significantly reduce the opening area 22M1, thus affecting the oil permeability and oil guiding performance of e-liquid 310.

[0075] More preferably, the inner tube 20 includes a positioning ring 24 extending inward from the inner wall of the inner tube 20, and one end of the oil-guiding cotton 40 abuts against the positioning ring 24.

[0076] The positioning ring 24 extends inward from the inner wall of the inner tube 20 and is used for the assembly positioning and support of the oil-guiding cotton 40. The positioning ring 24 provides a clear physical limit, allowing one end of the oil-guiding cotton 40 to accurately abut against the positioning ring 24, preventing positional displacement or loosening of the oil-guiding cotton 40 during assembly. Accurate positioning can effectively prevent uneven supply of e-liquid 310 or incomplete conduction of e-liquid 310 to the heating element 30 due to displacement of the oil-guiding cotton 40.

[0077] During long-term use, the oil-wicking cotton 40 may deform or collapse due to high temperature and liquid wetting. The positioning ring 24 provides reliable support, helping to prevent the oil-wicking cotton 40 from loosening or collapsing, thereby ensuring the stability of its oil-wicking performance.

[0078] More preferably, the inner tube 20 further includes a fixing part 25 extending outward from the outer wall of the inner tube 20, wherein when the inner tube 20 is nested inside the outer tube 10, the fixing part 25 cooperates with the inner wall of the outer tube 10 to seal.

[0079] The fixing part 25 is a structure extending outward from the outer wall of the inner tube 20, used to mate with the inner wall of the outer tube 10, serving a sealing and stabilizing function. After the fixing part 25 mates with the inner wall of the outer tube 10, a reliable sealing structure is formed, effectively preventing external air 200 and e-liquid 310 from leaking through the mating point of the inner and outer tubes 10, ensuring the integrity of the e-liquid 310 supply path. Improved sealing performance prevents e-liquid 310 leakage or poor e-liquid supply caused by air pressure fluctuations, thereby improving the user experience and reliability of the atomizer coil body 100.

[0080] The fixing part 25 provides an assembly limit point, making the assembly of the inner tube 20 and the outer tube 10 more stable and preventing the inner tube 20 from loosening or shifting during use. At the same time, the fixing part 25 provides a clear assembly position, enabling the inner tube 20 and the outer tube 10 to be quickly aligned and pressed together, simplifying the production process and improving assembly efficiency.

[0081] More preferably, the number of first oil passage holes 11 is at least one, and at least one first oil passage hole 11 is evenly distributed on the outer tube 10, and when viewed along the axial direction F1 perpendicular to the inner tube 20, there is an overlapping portion between at least one first oil passage hole 11 and the second oil passage hole 21.

[0082] The overlapping portion of the first oil passage 11 and the second oil passage 21 provides a direct air pressure regulation path to the oil tank 300 and the outside environment 200, making pressure relief more direct and efficient.

[0083] More preferably, the atomizing core body 100 further includes a sealing seat 70 and an isolation rod 80. The sealing seat 70 is located at the other end of the outer tube 10 and on the side of the positioning ring 24 opposite to the oil-guiding cotton 40. The isolation rod 80 passes through the sealing seat 70 and is inserted into the joint area between the oil-guiding cotton 40 and the heating element 30.

[0084] The sealing seat 70 is located at the other end of the outer tube 10, which can seal the connection area between the outer tube 10 and the outside environment 200, effectively preventing leakage of e-liquid 310. The sealing seat 70 is designed on the side of the positioning ring 24 away from the wicking cotton 40, which can isolate the wicking cotton 40 and the heating element 30 area from other component areas, reducing the interference of the external environment on the wicking cotton 40, e-liquid 310 and heating element 30. At the same time, the sealing seat 70 provides additional mechanical support for the sealing effect on the bottom of the outer tube 10, enhancing the overall structural stability of the atomizer core body 100 and preventing components from loosening or shifting during long-term use.

[0085] According to another aspect of this application, this embodiment provides an electronic cigarette, including the aforementioned refillable electronic cigarette cartridge atomizing core body 100.

[0086] In this embodiment, the atomizing core body 100, which is equipped with oil-guiding cotton 40, heating element 30, sealing seat 70, inner tube 20 and outer tube 10, is then assembled with the oil tank 300 of the e-cigarette cartridge. The bottom of the atomizing core body 100 is assembled with sealing silicone, and the mist outlet of the outer tube 10 is assembled with the mouthpiece. The sealing element in the mist outlet area does not contact the inner tube 20.

[0087] In this embodiment, the seam area of ​​the oil-guiding cotton 40 on the inner tube 20 is sealed, and positioning lines are machined at the upper or lower end of the assembly area of ​​the oil-guiding cotton 40 to ensure accurate and stable assembly of the oil-guiding cotton 40, while preventing air leakage and oil leakage due to collapse and deformation of the oil-guiding cotton 40 seam. Furthermore, the main structure at the top of the inner tube 20 has no notches, thus preventing excessive gaps 50 in the fit with the outer tube 10 that could lead to air leakage and oil leakage. In this embodiment, the outer tube 10 has a straight tube structure with a small oil passage hole, allowing it to be assembled with the oil passage hole of the inner tube 20 at any angle. Oil can pass through the small gap 50 between the inner and outer tubes 10, whether directly through the oil passage hole or in a staggered area, simplifying the assembly process. Furthermore, no outer cotton wrapping is required on the outside of the inner tube 20, saving materials and effectively eliminating uneven pressure relief caused by uneven cotton assembly and density distribution, resulting in product variations. This also saves materials, simplifies the structure, and effectively reduces material costs.

[0088] Example 2

[0089] See Figures 12-15 This embodiment provides an e-cigarette cartridge atomizing component 400 that supports inverted inhalation. The atomizing component 400 includes an atomizing core body 100 as described in Embodiment 1, as well as a pull-out silicone tube 410 and an elastic buffer oil storage cotton 420.

[0090] After the atomizer core body 100 is assembled, the elastic buffer oil storage cotton 420 is fitted onto the bottom of the outer tube 10, and the pull-out silicone tube 410 is fitted from top to bottom onto the air outlet end 101 of the atomizer core body 100 to seal the first oil passage hole 11 of the outer tube 10. In use, pulling up the pull-out silicone tube 410 causes the elastic buffer oil storage cotton 420 to rebound and expand, further blocking the first oil passage hole 11 of the atomizer core body 100. Therefore, when inhaled upside down or horizontally, although the e-liquid 310 cannot completely submerge the first oil passage hole 11 of the atomizer core body 100, the elastic buffer oil storage cotton 420 blocks the first oil passage hole 11, maintaining the air pressure balance of the oil tank 300. This ensures that the e-cigarette can supply e-liquid normally when inhaled horizontally or upside down, improving the user experience.

[0091] More preferably, the pull-out silicone tube 410 includes an upper section 4111, a middle section 4112, and a lower section 4113. The lower section 4113 and the middle section 4112 are hollow tubes, while the upper section 4111 is a solid, long, thin strip. The lower section 4113 is fitted onto the outside of the atomizing core body 100 and covers the first oil-permeable hole 11. The hollow part where the middle section 4112 connects to the upper section 4111 is designed as an elastic structure that is easy to break. Before the electronic cigarette is unpacked and inhaled, the upper section 4111 is pulled out until it separates from the middle section 4112 to remove the cover from the first oil-permeable hole 11, allowing the first oil-permeable hole 11 of the outer tube 10 of the atomizing core body 100 to communicate with the oil tank 300. After the upper section 4111 separates from the middle section 4112, the mist outlet 102 of the mouthpiece is unobstructed.

[0092] More preferably, the elastic buffer oil-retaining cotton 420 is sleeved below the lower section 4113 of the pull-out silicone tube 410. After the atomizing component 400 is assembled with the cartridge, the elastic buffer oil-retaining cotton 420 is located between the seal 510 at the bottom of the cartridge and the pull-out silicone tube 410 and is in a compressed state. When the pull-out silicone tube 410 is pulled up, the elastic buffer oil-retaining cotton 420 rebounds and expands, covering the first oil-permeable hole 11.

[0093] Among them, the elastic cushioning oil storage cotton 420 is a low-density, high-elasticity oil storage cotton. The raw material of the elastic cushioning oil storage cotton 420 can be at least one of the following: through-hole sponge, hot air cotton, yarn-type oil storage cotton, needle-punched cotton, and washed cotton, and it is die-cut. Its bulk density ρ≤0.06g / cm3.

[0094] The e-liquid stored in the elastic buffer oil cotton 420 can well meet the inverted inhalation needs of consumers for 5 to 30 puffs during the use of e-cigarettes. The e-liquid can be replenished to the maximum storage capacity when the e-cigarette is placed flat or upright, without affecting the change of air exchange pressure difference of the oil vent.

[0095] By creating a gap 50 between the inner tube 20 and the outer tube 10, a first pressure relief channel 61 is formed, connecting the oil tank 300 and the outside environment 200 via the gap 50 and the first oil-permeable hole 11. This provides the atomizing core body 100 with another pressure relief channel besides the oil-guiding cotton 40, ensuring stable and reliable oil supply from the cartridge and full utilization of the e-liquid 310. This also reduces costs and increases efficiency compared to existing dual-layer atomizing tube technology. After the atomizing core body 100 is assembled, the elastic buffer oil-retaining cotton 420 is fitted onto the bottom of the outer tube 10, and the pull-out silicone tube 410 is fitted from top to bottom onto the air outlet 101 of the atomizing core body 100 to seal the first oil-permeable hole 11 of the outer tube 10. In use, pulling up the pull-out silicone tube 410 causes the elastic buffer oil-retaining cotton 420 to rebound and expand, further blocking the first oil-permeable hole 11 of the atomizing core body 100. Furthermore, when inhaled upside down or horizontally, although the e-liquid 310 cannot submerge the first oil-permeable hole 11 of the atomizer core body 100, the elastic buffer oil-retaining cotton 420 blocks the first oil-permeable hole 11, maintaining the air pressure balance of the oil tank 300. This allows the e-cigarette to supply oil normally when the user inhales horizontally or upside down, improving the user experience.

[0096] 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 refillable electronic cigarette cartridge atomizing assembly supporting inverted inhalation, the atomizing assembly comprising an atomizing core body, a pull-out silicone tube, and an elastic cushioning oil reservoir, characterized in that, The atomizing core body includes: an outer tube with one end connected to an external air passage, an inner tube sleeved inside the outer tube, a heating element disposed inside the inner tube, and oil-guiding cotton sandwiched between the inner tube and the heating element. The outer tube of the atomizing core body has a first oil passage hole that communicates with the oil tank. A gap is formed between the outer tube and the inner tube. One end of the gap is connected to the external air passage, and the other end is connected to the oil tank through the first oil passage hole, so as to form at least a first pressure relief channel that connects the oil tank and the outside through the gap and the first oil passage hole. An elastic buffer oil storage cotton sleeve is placed at the bottom of the outer tube, and the pull-out silicone tube is sleeved from top to bottom at the air outlet end of the atomizing core body, sealing the first oil-permeable hole of the outer tube.

2. The refillable electronic cigarette cartridge atomizing assembly supporting inverted inhalation as described in claim 1, characterized in that, One end of the inner tube is connected to the external air passage, and a second oil perforation is formed on the inner tube, which is connected to the first oil perforation, so as to form a second pressure relief channel that connects the oil tank and the outside through the inner tube, heating element, oil guide cotton, second oil perforation and first oil perforation. The e-liquid in the tank flows into the gap through the first oil permeation hole to block the air passage between the outside and the tank. When the user inhales the e-cigarette and consumes the e-liquid in the tank, a negative pressure is formed inside the tank. The e-liquid blocked in the gap is broken down by the outside air under the action of the negative pressure, thus clearing the first pressure relief channel.

3. The refillable electronic cigarette cartridge atomizing assembly supporting inverted inhalation as described in claim 2, characterized in that, The negative pressure value that causes outside air to break down the e-liquid blocking the gap is denoted as Q, and the size of the gap is denoted as T. The following relationship is satisfied: Q≤-500Pa; 5um≤T≤40um.

4. The refillable electronic cigarette cartridge atomizing assembly supporting inverted inhalation as described in claim 2, characterized in that, Viewed along the axial direction of the inner tube, the inner tube includes: an open area and a non-open area connected to it end to end; the number of second oil passage holes is at least one; at least one second oil passage hole is disposed in the open area; and the seam area of ​​the oil-guiding cotton is attached to the non-open area. Let M1 be the area of ​​the region with openings and M2 be the area of ​​the region without openings, satisfying the following relationship: 0.2(M1+M2)≤M2≤0.5(M1+M2).

5. The refillable electronic cigarette cartridge atomizing assembly supporting inverted inhalation as described in claim 2, characterized in that, The inner tube includes a positioning ring extending inward from the inner wall of the inner tube, and one end of the oil-guiding cotton abuts against the positioning ring; The inner tube further includes a fixing part extending outward from the outer wall of the inner tube. When the inner tube is nested inside the outer tube, the fixing part cooperates with the inner wall of the outer tube to seal.

6. The refillable electronic cigarette cartridge atomizing assembly supporting inverted inhalation as described in claim 1, characterized in that, The pull-out silicone tube includes an upper section, a middle section, and a lower section. The lower and middle sections are hollow tubes, while the upper section is a solid, long, thin strip. The lower section is fitted over the outside of the atomizer core body and covers the first oil-permeable hole. The hollow section connecting the middle and upper sections is designed with an elastic structure that is easy to break. Before the electronic cigarette is unpacked and vaping begins, the upper section is pulled out until it separates from the middle section to remove the cover from the first oil-permeable hole, allowing the first oil-permeable hole of the outer tube of the atomizer core body to communicate with the oil tank. After the upper and middle sections separate, the mist outlet of the mouthpiece is unobstructed.

7. The refillable electronic cigarette cartridge atomizing assembly supporting inverted inhalation as described in claim 1, characterized in that, The elastic buffer oil-retaining cotton is fitted under the lower section of the pull-out silicone tube. After the atomizing component is assembled with the cartridge, the elastic buffer oil-retaining cotton is located between the seal at the bottom of the cartridge and the pull-out silicone tube and is in a compressed state. When the pull-out silicone tube is pulled up, the elastic buffer oil-retaining cotton rebounds and expands, covering the first oil-permeable hole. The elastic cushioning oil-absorbing cotton is made from at least one of the following raw materials: porous sponge, hot-air cotton, yarn-type oil-absorbing cotton, needle-punched cotton, and washed cotton, and is die-cut. Its bulk density ρ ≤ 0.06 g / cm³ 3 .

8. The refillable electronic cigarette cartridge atomizing assembly supporting inverted inhalation as described in claim 5, characterized in that, The number of first oil passage holes is at least one, and at least one first oil passage hole is evenly distributed on the outer tube. When viewed along the axial direction perpendicular to the inner tube, there is an overlap between at least one first oil passage hole and a second oil passage hole.

9. The refillable electronic cigarette cartridge atomizing assembly supporting inverted inhalation as described in claim 8, characterized in that, The atomizing core body also includes: The sealing seat is located at the other end of the outer tube and on the side of the positioning ring away from the oil-guiding cotton. The isolation rod passes through the sealing seat and is inserted into the seam area between the oil-wicking cotton and the heating element.

10. An electronic cigarette, characterized in that, Includes the inverted inhalation refillable e-cigarette cartridge atomizing assembly as described in any one of claims 1-9.

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