Oil leakage prevention sealing structure and electronic cigarette
By employing a top and bottom seal design in electronic cigarettes, and utilizing a combination of sealing ribs and sealant, the problem of oil leakage during the heating and evaporation process of electronic cigarettes is solved, achieving a better sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-03
AI Technical Summary
Existing electronic cigarettes are prone to leakage during the heating and evaporation of the atomizing liquid, especially when the bottom of the oil tank is not properly sealed.
It adopts an oil-leakage-proof sealing structure, including a top seal and a bottom seal, both of which are made of elastic material and are elastically sealed to the corresponding inner wall surface through sealing ribs. The bottom seal and the lower cover are filled with sealant to achieve a sealing bond and enhance the sealing performance.
It effectively prevents the atomizing liquid from leaking out of the bottom cover, improves the sealing of the electronic cigarette, and avoids the occurrence of oil leakage.
Smart Images
Figure CN224069767U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electronic atomization device technology, and more specifically, relates to an oil-proof sealing structure and an electronic cigarette. Background Technology
[0002] Electronic cigarettes, as electronic products that mimic traditional cigarettes, are becoming increasingly popular with consumers. In most electronic cigarettes currently on the market, the atomizer core is typically a long, tubular shape, oriented axially up and down and located in the center of the e-liquid tank. The inner wall of the atomizer core forms an airflow channel, and wicking cotton covers its outer surface. The electrode is connected to the atomizer core, and the atomized liquid is drawn from the tank into the core through the wicking cotton. Then, when the electrode is energized, the atomizer core heats up, evaporating the atomized liquid. The vapor is then inhaled by the user through the airflow channel. However, this design is prone to causing some atomized liquid to condense and drip to the bottom of the tank during the heating and evaporation process. The bottom of the tank is usually only covered by a single cap, which lacks sufficient sealing, making leakage a likely problem. Utility Model Content
[0003] The purpose of this application is to provide an oil-proof sealing structure to solve the technical problem of easy oil leakage in electronic cigarettes in the prior art.
[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide an oil-leakage-proof sealing structure for electronic cigarettes. The electronic cigarette includes a shell and a bottom cover. With the axial direction of the shell as the vertical direction, the inner wall of the shell forms a hollow, lower-opening oil tank, and the middle of the shell forms a hollow, upper-opening air passage. The bottom cover includes an upper cover and a lower cover that are detachably connected. The upper cover is detachably connected to the shell, and the lower cover closes the lower opening of the oil tank. The oil-leakage-proof sealing structure comprises:
[0005] The top seal is integrally formed from an elastic material. The top seal is built into the bottom of the oil tank and fitted onto the top of the cover. The outer ring surface of the top seal is provided with a first sealing rib. The top seal is elastically and sealingly connected to the inner wall of the oil tank through the first sealing rib.
[0006] The bottom seal is integrally molded from an elastic material. It is located below the top seal and fitted onto the top of the lower cover. The outer circumferential surface of the bottom seal has a second sealing rib. The bottom seal is elastically and sealingly connected to the inner wall of the upper cover via the second sealing rib.
[0007] The sealant fills the gap between the bottom end of the bottom seal and the bottom cover, and the bottom seal is sealed and bonded to the bottom cover by the sealant.
[0008] Optionally, the top seal includes a top plate and a first skirt extending downward from the outer edge of the top plate. The outer ring surface of the first skirt is provided with a plurality of annular first sealing ribs, and the plurality of first sealing ribs are arranged at intervals in the vertical direction.
[0009] Optionally, the top center of the cover is provided with a first groove corresponding to the bottom of the air passage, and the cover is also provided with several second inner cavities communicating with the oil tank on the side of the first groove.
[0010] The top seal also includes a lower flange extending downward from the lower plate surface of the top plate. The lower flange is built into the first groove. The inner wall surface of the lower flange forms a top first through hole into which the bottom of the air supply channel is inserted. The top plate is also provided with a top second through hole corresponding to the position of the second inner cavity. The second inner cavity is connected to the oil tank through the top second through hole.
[0011] Optionally, the bottom seal includes a base plate, an upper flange extending upward from the edge of the base plate, and a second skirt extending downward from the outer edge of the upper flange; a plurality of annular second sealing ribs are protruding on the outer ring surface of the second skirt, and the plurality of second sealing ribs are spaced apart in the vertical direction; a plurality of annular third sealing ribs are protruding on the outer ring surface of the upper flange, and the plurality of third sealing ribs are spaced apart in the vertical direction.
[0012] Optionally, the outer ring surface of the upper flange and the second skirt form an annular groove for the top of the lower cover to be inserted; the top of the lower cover is provided with a second groove, the bottom plate and the upper flange are built into the second groove, and the sealant is used to seal and bond the bottom end face of the bottom plate to the lower cover in the second groove.
[0013] Optionally, both the top and bottom seals are made of heat-resistant silicone, and the sealant is a high-temperature resistant adhesive.
[0014] This application also proposes an electronic cigarette, including a shell, a bottom cover, an atomizing component, and a leak-proof sealing structure as described above; the inner wall of the shell forms a hollow, lower-opening oil tank, and the middle of the shell forms a hollow, upper-opening air passage; the bottom cover includes an upper cover and a lower cover that are detachably connected, the upper cover being detachably connected to the shell, and the lower cover covering the lower opening of the oil tank; the atomizing component includes an electrode, an atomizing core, and wicking cotton, the wicking cotton and the atomizing core being built into the inner cavity of the upper cover, the atomizing core being located below the air passage and the wicking cotton, and the atomized liquid in the oil tank being guided into the atomizing core through the wicking cotton; the electrode is in-mold-molded in the bottom cover, and the inner ring surface of the bottom seal forms an oil storage tank, the oil storage tank corresponding to the bottom position of the air passage and located below the atomizing core, the upper end of the electrode passing through the lower cover and the bottom seal and entering the oil storage tank until it extends to connect with the atomizing core.
[0015] Optionally, the inner wall surface of the upper cover is provided with a first slot, and the outer ring surface of the lower cover is provided with a first protrusion. The upper cover and the lower cover are detachably connected by the first protrusion being engaged with the first slot.
[0016] The outer shell has a snap hole, and the outer surface of the top cover has a protruding buckle. The top cover and the outer shell are detachably snapped together by snapping the buckle into the snap hole.
[0017] Optionally, a first air inlet is provided at the bottom center of the lower cover, and an upward protruding boss is provided at the bottom center of the bottom seal. A second air inlet is provided on the boss, corresponding to the position of the first air inlet. Outside air enters the air passage sequentially through the first air inlet, the second air inlet, and the gap next to the atomizing core.
[0018] The inner ring surface of the bottom seal and the outer ring surface of the boss form an annular oil reservoir.
[0019] Optionally, the lower end of the electrode is integrally injection molded with the bottom end of the lower cover, the upper end of the electrode passes through the oil reservoir and connects to the atomizing core, and there are gaps between the electrode and the inner ring surface of the bottom seal and the outer ring surface of the boss.
[0020] The beneficial effects of the oil leak-proof sealing structure provided in this application are as follows: the bottom of the oil tank is covered by a bottom cover, and the sealing at the connection between the bottom cover and the outer shell can be achieved through various settings: First, a top seal made of elastic material is fitted onto the top of the top seal, and a first sealing rib protruding from its outer ring surface elastically abuts against the inner wall of the oil tank to achieve a sealing connection, thus preventing the atomized liquid in the oil tank from flowing out from the gap between the inner wall of the outer shell and the top cover; Second, since the top cover and the bottom cover are detachably connected, the bottom seal fitted onto the top of the bottom seal can also achieve a sealing connection through a second sealing rib protruding from its outer ring surface elastically abutting against the inner wall of the top cover, so that the atomized liquid in the oil tank cannot flow out from the gap between the top cover and the bottom cover; Third, the gap between the bottom end of the bottom seal and the bottom cover is filled with sealant and sealed, so that the atomized liquid cannot flow out from the gap between the bottom cover and the bottom seal. In summary, through the above-mentioned multi-faceted sealing structure design, this application can effectively prevent the risk of atomizing liquid leaking from the bottom cover. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application, 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 these drawings without creative effort.
[0022] Figure 1 This is a partial structural schematic diagram of an electronic cigarette provided in one embodiment of this application;
[0023] Figure 2 A partial front view of an electronic cigarette provided in an embodiment of this application;
[0024] Figure 3 for Figure 2 A cross-sectional view along the S1-S1 direction;
[0025] Figure 4 A partial structural side view of an electronic cigarette provided in an embodiment of this application;
[0026] Figure 5 for Figure 4 A partial structural cross-sectional view along the S2-S2 direction;
[0027] Figure 6 An exploded view of a portion of the structure of an electronic cigarette provided in an embodiment of this application;
[0028] Figure 7 This is an exploded view of a portion of the structure of an electronic cigarette provided in one embodiment of this application from another angle.
[0029] Figure 8 This is a partial exploded view of the structure of an electronic cigarette provided in one embodiment of this application from another angle.
[0030] Explanation of icon numbers:
[0031]
[0032] Detailed Implementation
[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0035] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of this application are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.
[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0039] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0040] This application provides an oil-leakage-proof sealing structure.
[0041] Reference Figures 1 to 8In one embodiment, the leak-proof sealing structure is used in an electronic cigarette. The electronic cigarette includes a shell 100 and a bottom cover 200. With the axial direction of the shell 100 as the vertical direction, the inner wall of the shell 100 forms a hollow, lower-opening oil tank 110. A hollow, upper-opening air passage 120 is formed in the middle of the shell 100. The bottom cover 200 includes an upper cover 210 and a lower cover 220 that are detachably connected. The upper cover 210 is detachably connected to the shell 100, and the lower cover 220 covers the lower opening of the oil tank 110. Specifically, the leak-proof sealing structure includes a top seal 300, a bottom seal 400, and sealant 500. The top seal 300 is integrally formed from an elastic material. The top seal 300 is built into the bottom of the oil tank 110 and sleeved on the top of the upper cover 210. The outer circumferential surface of the top seal 300 is provided with a first sealing rib 330. The top seal 300 is elastically and sealingly connected to the inner wall of the oil tank 110 through the first sealing rib 330. The bottom seal 400 is integrally molded from an elastic material. It is located below the top seal 300 and fitted onto the top of the lower cover 220. The outer circumference of the bottom seal 400 has a second sealing rib 440, which elastically seals the bottom seal 400 to the inner wall of the upper cover 210. Sealant 500 fills the gap between the bottom end of the bottom seal 400 and the lower cover 220, sealing the bottom seal 400 to the lower cover 220. It should be noted that… Figures 1 to 8 The diagram shows a partial structure of an electronic cigarette. Other components not shown can be found in existing technologies and will not be described in detail here.
[0042] Based on this structural design, in this embodiment, the bottom of the oil tank 110 is covered by the bottom cover 200, and the seal between the bottom cover 200 and the outer shell 100 can be achieved through various arrangements: First, a top seal 300 integrally formed from elastic material is fitted onto the top of the top seal 300, and a sealing connection is achieved by the first sealing rib 330 protruding from its outer ring surface elastically abutting against the inner wall surface of the oil tank 110. In this way, the atomized liquid in the oil tank 110 can be prevented from flowing out from the gap between the inner wall surface of the outer shell 100 and the top cover 210; Second, because the top cover 210... Since the bottom cover 200 and the bottom cover 220 are detachably connected, the bottom seal 400, which is fitted onto the top of the bottom seal 400, can also achieve a sealed connection by elastically abutting against the inner wall of the top cover 210 through the second sealing rib 440 protruding on its outer ring surface. Thus, the atomizing liquid in the oil tank 110 cannot flow out from the gap between the top cover 210 and the bottom cover 220. Thirdly, since the gap between the bottom end of the bottom seal 400 and the bottom cover 220 is filled with sealant 500 and sealed, the atomizing liquid also cannot flow out from the gap between the bottom cover 200 and the bottom seal 400. In summary, through the above-mentioned multi-faceted sealing structure design, this application can effectively prevent the risk of atomizing liquid leakage from the bottom cover 200.
[0043] Reference Figure 3 , Figures 5 to 8 In this embodiment, the top seal 300 includes a top plate 310 and a first skirt 320 extending downward from the outer edge of the top plate 310. A plurality of annular first sealing ribs 330 are protruding from the outer circumferential surface of the first skirt 320, and these ribs are spaced apart in the vertical direction. This design, with multiple first sealing ribs 330 spaced apart vertically on the outer circumferential surface of the first skirt 320, forms multiple sealing lines, effectively enhancing the sealing performance of the top seal 300 and achieving a better oil leakage prevention effect. Of course, in other embodiments, only one first sealing rib 330 may be provided, but its sealing effect will not be as good as the design in this embodiment.
[0044] Furthermore, in this embodiment, the top center of the upper cover 210 is provided with a first groove 211 corresponding to the bottom position of the air passage 120. The upper cover 210 also has several second inner cavities 213 communicating with the oil tank 110 on the side of the first groove 211. The top seal 300 also includes a lower flange 340 extending downward from the lower plate surface of the top plate 310. The lower flange 340 is housed within the first groove 211, and its inner wall forms a top first through hole 350 for the bottom of the air passage 120 to be inserted. The top plate 310 is also provided with a top second through hole 360 corresponding to the position of the second inner cavity 213. The second inner cavity 213 communicates with the oil tank 110 through the top second through hole 360. Here, the first groove 211 and its arrangement allow the bottom of the air passage 120 to be closer to the atomizing core 620, which helps save assembly space and makes the structure more compact. Meanwhile, the lower flange 340 also forms a seal between the outer surface of the bottom of the air passage 120 and the inner ring surface of the upper cover 210, thereby preventing the atomizing liquid in the oil tank 110 from falling directly onto the atomizing core 620 through this gap and from leaking out from the gap beside the atomizing core 620, which would increase condensation and thus increase the risk of oil leakage. Specifically, the upper cover 210 has a first inner cavity 212 and a second inner cavity 213 that are interconnected. The second inner cavity 213 is located above the first inner cavity 212. Each second inner cavity 213 contains an oil-guiding cotton 610, and the atomizing core 620 is built into the first inner cavity 212. Specifically, in this embodiment, there are two second inner cavities 213 and two oil-guiding cotton 610s. The atomizing core 620 with a heating wire is placed horizontally in the first inner cavity 212. The two oil-guiding cotton 610s are located on the left and right sides of the upper surface of the atomizing core 620, respectively. After the atomized liquid in the oil tank 110 is introduced into the atomizing core 620 through the oil-guiding cotton 610 on the left and right sides, the heated atomizing core 620 can heat the atomized liquid to form smoke, which is then sucked out from the air passage 120.
[0045] Reference Figure 3 , Figures 5 to 8In this embodiment, the bottom seal 400 includes a bottom plate 410, an upper flange 420 extending upward from the edge of the bottom plate 410, and a second skirt 430 extending downward from the outer edge of the upper flange 420. Multiple annular second sealing ribs 440 are protruding from the outer ring surface of the second skirt 430, and these ribs are spaced apart in the vertical direction. Multiple annular third sealing ribs 450 are protruding from the outer ring surface of the upper flange 420, and these ribs are also spaced apart in the vertical direction. Similarly, the design of multiple second sealing ribs 440 can form multiple sealing lines between the outer ring surface of the bottom seal 400 and the inner wall surface of the upper cover 210, and the design of multiple third sealing ribs 450 can also form multiple sealing lines between the upper flange 420 of the bottom seal 400 and the inner wall surface of the lower cover 220, thereby effectively enhancing the sealing performance of the bottom seal 400 and achieving a better oil leakage prevention effect.
[0046] Reference Figure 3 , Figures 5 to 8 In this embodiment, the outer annular surface of the upper flange 420 and the second skirt 430 form an annular groove 460 for the top end of the lower cover 220 to be inserted. The top end of the lower cover 220 is provided with a second groove, and the bottom plate 410 and the upper flange 420 are built into the second groove. The sealant 500 seals and bonds the bottom end face of the bottom plate 410 to the lower cover 220 in the second groove. Specifically, the lower cover 220 includes a lower bottom plate 410 and a flange extending upward from the lower bottom plate 410. The bottom seal 400 can be securely fitted onto the lower cover 220 by the bottom plate 410 and the upper flange 420 being built into the second groove, and the flange of the lower cover 220, i.e., the top end of the lower cover 220, being inserted into the annular groove 460. In addition, the top seal 300 is provided with an adhesive injection port 480, and the bottom seal 400 and the sealed lower cover 220 can be further strengthened by applying adhesive. Here, the sealant 500 serves two purposes: firstly, it seals the relevant gaps, including blocking the gaps between the electrode 630 and the first and second through holes, which helps to improve the bottom sealing performance; secondly, the sealant 500 also allows the bottom seal 400 to be more firmly fixed to the sealing bottom cover 200 through bonding, and these functions can further enhance the oil leakage prevention function.
[0047] It should be noted that, in this embodiment, both the top seal 300 and the bottom seal 400 are preferably made of heat-resistant silicone, and the sealant 500 is preferably a high-temperature resistant adhesive. This allows for better adaptation to the high-temperature environment of the electronic cigarette during operation and provides better material safety. Of course, in other embodiments, the top seal 300, the bottom seal 400, and the sealant 500 can be made of other suitable materials, as long as they meet the sealing function and are suitable for electronic cigarette products.
[0048] This application also proposes an electronic cigarette that includes the aforementioned leak-proof sealing structure. The specific structure of the leak-proof sealing structure is as described in the above embodiments. Since this electronic cigarette adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0049] Specifically, such as Figures 1 to 8 As shown, in this embodiment, as previously described, the inner wall of the outer shell 100 forms a hollow, lower-opening oil tank 110, and a hollow, upper-opening air passage 120 is formed in the middle of the outer shell 100. The bottom cover 200 includes an upper cover 210 and a lower cover 220 that are detachably connected. The upper cover 210 is detachably connected to the outer shell 100, and the lower cover 220 covers the lower opening of the oil tank 110. The atomizing assembly includes an electrode 630, an atomizing core 620, and an oil-guiding cotton 610. The oil-guiding cotton 610 and the atomizing core 620 are both built into the inner cavity of the upper cover 210. The atomizing core 620 is located below the air passage 120 and the oil-guiding cotton 610. The atomizing liquid in the oil tank 110 is introduced into the atomizing core 620 through the oil-guiding cotton 610. The electrode 630 is in-mold-molded in the bottom cover 200. The inner ring surface of the bottom seal 400 forms an oil storage tank 700. The oil storage tank 700 corresponds to the bottom position of the air passage 120 and is located below the atomizing core 620. The upper end of the electrode 630 passes through the lower cover 220 and the bottom seal 400 and enters the oil storage tank 700 until it extends to connect with the atomizing core 620. In this embodiment, a sensor is built into the oil-wicking cotton 610. Upon initial suction, the sensor detects the negative pressure created by the suction and activates power. The electrode 630 heats up, causing the atomizing core 620 to also heat up. Simultaneously, the atomizing liquid in the oil tank 110 can enter the atomizing core 620 through the oil-wicking cotton 610. The atomizing core 620 heats the liquid to form vapor, which is then drawn out through the air passage 120. Any incompletely atomized liquid in the atomizing core 620 condenses and drips down into the oil storage tank 700 located below the atomizing core 620. At this time, since the upper end of the electrode 630 is connected to the atomizing core 620 through the sealed lower cover 220 and the oil storage tank 700, that is, the middle section of the electrode 630 is built into the oil storage tank 700, the heated electrode 630 can reheat the condensate in the oil storage tank 700 to form smoke, which then enters the air passage 120 through the gap on the side of the atomizing core 620 and is drawn in.
[0050] Based on this structural design and the aforementioned technical effects, in this embodiment, since the atomizing core 620 is located at the bottom of the oil tank 110 and above the oil storage tank 700, and the electrode 630, which is in-mold-molded in the sealing lower cover 220, passes through the bottom seal 400 and enters the oil storage tank 700 to connect with the atomizing core 620, the condensate dripping into the oil storage tank 700 will be heated and evaporated by the heating of the heated electrode 630. Simultaneously, because the top seal 300, bottom seal 400, and sealant 500, which cooperate with the bottom cover 200 for sealing, can form multiple seals at the component connections, the risk of oil leakage during the heating and evaporation process is prevented while the condensate in the oil storage tank 700 is being evaporated.
[0051] Reference Figure 5 , Figure 7 as well as Figure 8 In this embodiment, the inner wall surface of the upper cover 210 is provided with a first slot 214, and the outer ring surface of the lower cover 220 is provided with a first protrusion 221. The upper cover 210 and the lower cover 220 are detachably connected by the first protrusion 221 engaging with the first slot 214. Of course, in other embodiments, the upper cover 210 and the lower cover 220 can also be detachably connected by other means, but the snap-fit method in this embodiment facilitates the assembly and disassembly of the upper cover 210 and the lower cover 220.
[0052] Further reference Figure 1 , Figure 2 , Figure 4 as well as Figures 6 to 8 In this embodiment, the outer shell 100 is provided with a snap hole 130, and the outer surface of the upper cover 210 is provided with a buckle 215. The upper cover 210 and the outer shell 100 are detachably snapped together by snapping the buckle 215 into the snap hole 130. However, this design is not limited to this. The upper cover 210 and the outer shell 100 can also be connected by other means. However, the snap-fit design of the buckle 215 and the snap hole 130 in this embodiment is beneficial to the convenience of assembling and disassembling the bottom cover 200 and the outer shell 100.
[0053] Reference Figure 3 , Figures 5 to 8In this embodiment, a first air inlet 222 is provided at the center of the bottom end of the lower cover 220, and an upwardly protruding boss 470 is provided at the center of the bottom end of the bottom seal 400. A second air inlet 471 corresponding to the position of the first air inlet 222 is provided on the boss 470. Outside air enters the air passage 120 sequentially through the first air inlet 222, the second air inlet 471, and the gap beside the atomizing core 620. An annular oil storage groove 700 is formed between the inner ring surface of the bottom seal 400 and the outer ring surface of the boss 470. It can be understood that since the annular oil storage groove 700 is located below the middle section of the atomizing core 620, it becomes the main collection point for condensate. The condensate at this point will be evaporated again by the heated electrode 630, and the resulting smoke enters the air passage 120 through the gap beside the atomizing core 620 and is then drawn out.
[0054] Reference Figure 5 In this embodiment, the lower end of electrode 630 is integrally injection molded with the bottom end of lower cover 220. The upper end of electrode 630 passes through oil reservoir 700 and connects to atomizing core 620. Gaps exist between electrode 630 and the inner annular surface of bottom seal 400, as well as between electrode 630 and the outer annular surface of boss 470. Specifically, electrode 630 has two electrodes, positive and negative. The lower end face of electrode 630 is flush with the lower end face of sealing lower cover 220. A groove for mounting magnet 800 is also provided on the lower end face of lower cover 220. Here, since the lower end of electrode 630 is directly injection molded integrally with lower cover 220, its lower end is directly sealed to lower cover 220, thereby achieving a better oil leakage prevention effect. Furthermore, since electrode 630 passes through an annular oil reservoir 700, this section of electrode 630 can better heat and evaporate the condensate in the oil reservoir 700 when heated, thus achieving better heating and evaporation and oil leakage prevention effects. Of course, in order to avoid the heating electrode 630 from overheating and damaging the bottom seal 400, there should be gaps between the electrode 630 and the inner ring surface of the bottom seal 400 and the outer ring surface of the boss 470.
[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An oil leakage prevention sealing structure for an electronic cigarette, the electronic cigarette comprising a housing and a bottom cover, with the axial direction of the housing as the up-down direction, an inner wall of the housing surrounding an oil tank with a hollow lower opening, a middle part of the housing forming an air passage with a hollow upper opening, the bottom cover comprising an upper cover and a lower cover detachably connected in the up-down direction, the upper cover being detachably connected with the housing, and the lower cover covering the lower opening of the oil tank, characterized in that, The oil leakage prevention sealing structure comprises: a top sealing member integrally formed by an elastic material, which is built in the bottom of the oil tank and sleeved on the top end of the upper cover, and a first sealing convex rib is arranged on the outer ring surface of the top sealing member, and the top sealing member is elastically and sealingly connected with the inner wall surface of the oil tank through the first sealing convex rib; a bottom sealing member integrally formed by an elastic material, which is located below the top sealing member and sleeved on the top end of the lower cover, and a second sealing convex rib is arranged on the outer ring surface of the bottom sealing member, and the bottom sealing member is elastically and sealingly connected with the inner wall surface of the upper cover through the second sealing convex rib; and sealing glue, which fills the gap between the bottom end of the bottom sealing member and the lower cover, and the bottom sealing member is sealingly bonded with the lower cover through the sealing glue.
2. The oil-tight seal structure according to claim 1, characterized by The top sealing member comprises a top plate and a first skirt extending downward from the outer edge of the top plate, a plurality of annular first sealing convex ribs are arranged on the outer ring surface of the first skirt, and the first sealing convex ribs are arranged in the up-down direction.
3. The oil-tight seal structure according to claim 2, wherein The top end of the upper cover is provided with a first groove corresponding to the bottom position of the air duct, and a plurality of second inner cavities in communication with the oil tank are arranged on the upper cover on the side of the first groove; The top sealing member further comprises a lower flange extending downward from the lower plate surface of the top plate, the lower flange is built in the first groove, the inner wall surface of the lower flange surrounds a top first through hole for inserting the bottom of the air duct, and the top plate is further provided with a top second through hole corresponding to the position of the second inner cavity, and the second inner cavity is in communication with the oil tank through the top second through hole.
4. The oil leak-proof seal structure of claim 1, wherein The bottom sealing member comprises a bottom plate, an upper flange extending upward from the edge of the bottom plate, and a second skirt extending downward from the outer edge of the upper flange; a plurality of annular second sealing convex ribs are arranged on the outer ring surface of the second skirt, and the second sealing convex ribs are arranged in the up-down direction; a plurality of annular third sealing convex ribs are arranged on the outer ring surface of the upper flange, and the third sealing convex ribs are arranged in the up-down direction.
5. The oil-tight seal structure according to claim 4, wherein The outer ring surface of the upper flange and the second skirt surround an annular embedding groove for inserting the top end of the lower cover; the top end of the lower cover is provided with a second groove, the bottom plate and the upper flange are built in the second groove, and the sealing glue sealingly bonds the bottom end surface of the bottom plate with the lower cover in the second groove.
6. The oil-tight seal structure according to any one of claims 1 to 5, characterized by The top sealing member and the bottom sealing member are made of heat-resistant silica gel, and the sealing glue is high-temperature-resistant adhesive glue.
7. An electronic cigarette, characterized in that, The oil leakage-proof sealing structure comprises a shell, a bottom cover, an atomization assembly, and an oil leakage-proof sealing structure as claimed in any one of claims 1 to 6; an inner wall of the shell encloses a hollow lower opening oil tank, a middle part of the shell forms a hollow upper opening air channel, the bottom cover comprises an upper cover and a lower cover detachably connected in sequence, the upper cover is detachably connected with the shell, and the lower cover covers the lower opening of the oil tank; the atomization assembly comprises an electrode, an atomization core, and an oil guide cotton, the oil guide cotton and the atomization core are both built-in in an inner cavity of the upper cover, the atomization core is located below the air channel and the oil guide cotton, and atomization liquid in the oil tank is guided into the atomization core through the oil guide cotton; the electrode is injection molded in the bottom cover, an inner annular surface of the bottom sealing member encloses an oil storage groove, the oil storage groove corresponds to a bottom part of the air channel and is located below the atomization core, an upper end of the electrode enters the oil storage groove through the lower cover and the bottom sealing member and then extends to connect with the atomization core.
8. The electronic cigarette of claim 7, wherein, An inner wall surface of the upper cover is provided with a first clamping groove, an outer annular surface of the lower cover is provided with a first clamping convex, and the upper cover and the lower cover are detachably clamped by the first clamping convex clamped into the first clamping groove. The shell is provided with a buckle hole, and an outer surface of the upper cover is provided with a buckle convex, and the upper cover and the shell are detachably clamped by the buckle convex buckled into the buckle hole.
9. The electronic cigarette of claim 7, wherein, A middle part of a bottom end of the lower cover is provided with a first air inlet hole, a bottom end of the bottom sealing member is provided with a convex table protruding upward, the convex table is provided with a second air inlet hole corresponding to the position of the first air inlet hole, and external air enters the air channel through the first air inlet hole, the second air inlet hole, and a gap beside the atomization core in sequence. An inner annular surface of the bottom sealing member and an outer annular surface of the convex table enclose the annular oil storage groove.
10. The electronic cigarette of claim 9, wherein, A bottom end of the electrode is integrally injection molded with the bottom end of the lower cover, an upper end of the electrode is connected with the atomization core after passing through the oil storage groove, and there is a gap between the electrode and the inner annular surface of the bottom sealing member and between the electrode and the outer annular surface of the convex table.