An electronic cigarette cartridge with an oil inlet hole at the top and an inner wall concave point structure

Abstract

The utility model discloses a kind of electronic cigarette cartridge with inner wall arch concave point structure of top oil inlet hole, which comprises oil cup part, bottom cover part and atomization part, the oil cup part is connected with the bottom cover part to form a cavity, and the atomization part is installed in the cavity. The atomization part includes an atomization part main body and a heating assembly. The atomization part main body is provided with a cavity channel connected with the oil cup part smoke guide channel, a U-shaped oil cavity and a heating assembly mounting cavity. The heating assembly mounting cavity is located at the lower side of the bottom curved section of the U-shaped oil cavity and has a side cavity on both sides connected with the cavity channel. A plurality of convex radial strips are arranged in the angle area between the vertical cavity bottom plane and the side wall of the two sides of the U-shaped oil cavity. The outer side surface of the radial strips is a slope surface, and the arch concave point structure is formed between the plurality of radial strips. The heating assembly is installed in the heating assembly mounting cavity and separates the U-shaped oil cavity and the side cavity. The oil cup part and the bottom cover part, and the bottom cover part and the atomization part are all buckled. The atomization part main body is covered with a silica gel cover to achieve sealing. The cartridge optimizes oil inlet and liquid control, relieves the impact of tobacco tar, improves atomization stability and structural reliability, and improves user experience.

Description

Technical Field

[0001] This utility model relates to electronic cigarettes, specifically to an electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole. Background Technology

[0002] In the tobacco alternative product sector, e-cigarettes have gradually become one of the mainstream market choices due to their relative convenience and environmental friendliness. As the core component of e-cigarettes, the liquid supply efficiency, flow field stability, and structural durability of the e-cigarette cartridge directly determine the atomization effect and the user experience. Ideally, the cartridge needs to achieve full-process optimization of "smooth oil intake → impact buffering → flow rate adaptation → stable atomization" to avoid dry burning and improve flavor consistency. However, existing e-cigarette cartridges still have many significant shortcomings in terms of structural design and fluid control, making it difficult to meet users' demands for a high-quality user experience. Firstly, the e-liquid filling method has limitations. Most traditional e-liquid cartridges use a bottom or side filling design. This design not only makes the filling process more cumbersome, but also results in an unreasonable e-liquid layout, which can easily lead to uneven distribution of e-liquid inside the cartridge. It cannot simultaneously meet the dual requirements of "quick top filling + efficient internal flow channel", causing inconvenience to users in their daily use. Secondly, there is the issue of uncontrolled impact. When e-liquid enters the tank inside the cartridge, the air pressure and the e-liquid create a violent impact, resulting in turbulence. This turbulence not only disrupts the uniformity of e-liquid atomization, causing issues such as droplet splashing and disordered e-liquid mixing, affecting the taste, but also causes fatigue damage to the inner wall of the cartridge due to continuous impact, shortening the cartridge's lifespan. Third, insufficient static liquid supply. When the cartridge is stationary, the e-liquid will be unevenly distributed due to gravity or surface tension. This makes it difficult for the e-liquid flow rate to match the consumption rhythm of the heating element, which can easily lead to dry burning, reducing safety and compromising flavor stability. Fourth, the structural design is rather crude. The structural design of key components such as the inner wall and flow channels of the e-cigarette cartridge has not been fully optimized in accordance with fluid dynamics principles. It lacks the coordinated design of "arched concave buffering" and "sloping flow guidance," failing to simultaneously achieve a balance between "impact absorption" and "flow rate enhancement." This results in insufficient precision in controlling the e-liquid, further affecting the atomization effect. Given the above-mentioned problems in the existing technology, it is necessary to improve the structure of existing e-cigarette cartridges to enhance their overall performance and user experience. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole, so as to solve the problems of inconvenient oil inlet, uncontrolled e-liquid impact, insufficient static liquid supply and low liquid control accuracy of existing cartridges.

[0004] To solve the above-mentioned technical problems, this utility model achieves the following solution: An electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole, comprising an oil cup, a bottom cover, and an atomizing part, wherein the oil cup and the bottom cover are connected to form a cavity, the atomizing part is installed in the cavity, the oil cup also has a smoke guiding channel, and the atomizing part includes: The atomizing part has a cavity communicating with the smoke guide channel, a U-shaped oil cavity separated from the cavity, and a heating element mounting cavity. The heating element mounting cavity is located on the lower side of the bottom curved section of the U-shaped oil cavity. Side cavities are formed on both sides of the heating element mounting cavity, and the two side cavities are connected to the cavity. The bottom of the vertical cavities on both sides of the U-shaped oil cavity has a plane. Multiple outwardly protruding radial strips are arranged in the angle area between the plane and the vertical cavity sidewalls. The outer surface of the radial strips is set as a slope, and the multiple radial strips form an arched concave point structure. A heating element is installed in the heating element mounting cavity, and after the heating element is installed, it separates the U-shaped oil cavity from the two side cavities.

[0005] Furthermore, the heating component includes a silicone sheet and a heating element. The silicone sheet has at least one through hole extending through both sides. After one side is attached to the heating element, it is placed into the mounting cavity of the heating component, wherein the silicone sheet is positioned facing inward.

[0006] Furthermore, the heating element is a ceramic heating element.

[0007] Furthermore, the oil cup portion and the bottom cover portion are fastened together, and the bottom cover portion is also fastened together with the atomizing portion.

[0008] Furthermore, the bottom cover includes an insulating bottom cover, two electrode rods, and an oil-absorbing cotton. The insulating bottom cover has a stepped hole through which the two electrode rods pass, and a cavity is provided at one of its snap-fit ​​ends, in which the oil-absorbing cotton is disposed. The insulating bottom cover has two axially arranged protrusions at the edge of its cavity opening; The insulating bottom cover has two protrusions on its outer circumferential surface facing away from each other.

[0009] Furthermore, the oil cup part includes an oil cup and a cup sleeve. A thin rod extends from one end of the oil cup to form a mouthpiece part. The inner channel of the mouthpiece part is connected to the smoke guiding channel. The outside of the mouthpiece part is an annular groove, and the cup sleeve is fitted into the annular groove.

[0010] Furthermore, the oil cup has two first buckle holes symmetrically provided at the end away from the nozzle, and the two protrusions are correspondingly snapped into the two first buckle holes so that the oil cup part and the bottom cover part are fastened together.

[0011] Furthermore, the sidewall of the atomizing part body is symmetrically provided with two second buckle holes, and the two protruding buckles are correspondingly fastened into the two second buckle holes so that the bottom cover part is also fastened to the atomizing part.

[0012] Furthermore, the e-cigarette cartridge also includes a silicone cover, which is disposed outside the atomizing part body to form a sealed structure between the atomizing part body and the oil cup part.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The optimized oil intake mode of the e-cigarette cartridge of this utility model: The U-shaped oil cavity design of this utility model, combined with the arched concave structure of the inner wall, can ensure the uniform distribution of e-liquid inside, realize the efficient conduction of the internal flow channel, and solve the problems of inconvenient oil intake and uneven e-liquid distribution of traditional cartridges. 2. This utility model provides a device for mitigating impact-induced loss of control in electronic cigarette cartridges: the radial strips at the bottom of the vertical cavities on both sides of the U-shaped oil chamber form an arched concave point structure, and the outer surface of the radial strips is a sloping surface. When e-liquid enters the U-shaped oil chamber, the arched concave point structure can buffer the impact of the e-liquid, reduce the generation of turbulence, avoid droplet splashing and disordered e-liquid mixing, and at the same time reduce the impact damage of e-liquid to the inner wall, thus extending the service life of the cartridge. 3. This utility model improves the control precision of e-liquid in electronic cigarette cartridges: Combining the principles of fluid mechanics, this utility model designs an arched concave point structure with "arched concave buffer" and a radial sloping surface with "sloping flow guide". The two work together to achieve a functional balance between "impact absorption" and "flow rate enhancement", which greatly improves the control precision of e-liquid and ensures the stability of atomization effect. 4. The structure of the e-cigarette cartridge of this utility model is stable and reliable: the components are connected by a snap-fit ​​method, and with the sealing effect of silicone sheet and silicone cover, it is not only easy to assemble and disassemble, but also ensures the overall sealing and structural stability of the cartridge, effectively prevents e-liquid leakage, and improves the overall performance and user experience of the cartridge. Attached Figure Description

[0014] Figure 1 This is an exploded diagram of the e-cigarette cartridge for this utility model.

[0015] Figure 2 This is a cross-sectional view of the electronic cigarette cartridge of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the atomizing part of this utility model.

[0017] Figure 4 This is a cross-sectional view of the main body of the atomizing part of this utility model.

[0018] Figure 5 This is a cross-sectional view of the main body of the atomizing section of this utility model, showing the visible radial strips.

[0019] Figure 6 This is a schematic diagram showing the smoke formed by the atomization of e-liquid after the heating element of this utility model is powered on, following the direction of the arrow.

[0020] The following are labeled in the attached diagram: 1. Oil cup; 2. Cup sleeve; 3. Silicone cover; 4. Atomizing part body; 5. Silicone sheet; 6. Heating element; 7. Oil-absorbing cotton; 8. Insulating bottom cover; 9. Electrode rod; 41. Cavity; 42. U-shaped oil cavity; 43. Diameter bar; 44. Heating component mounting cavity; 45. Plane. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model. Obviously, the embodiments described in this utility model are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Example 1: The specific structure of this utility model is as follows: Please refer to the appendix. Figure 1-6 The present invention relates to an electronic cigarette cartridge with an inner wall arched concave structure for a top oil inlet hole, comprising an oil cup, a bottom cover, and an atomizing part. The oil cup and the bottom cover are connected to form a cavity, and the atomizing part is installed in the cavity. The oil cup also has a smoke guiding channel. The atomizing part includes an atomizing part body 4 and a heating element.

[0024] The atomizing unit body 4 has a cavity 41 communicating with the smoke guide channel, a U-shaped oil cavity 42 separated from the cavity 41, and a heating element mounting cavity 44. The heating element mounting cavity 44 is located on the lower side of the bottom curved section of the U-shaped oil cavity 42. Side cavities are formed on both sides of the heating element mounting cavity, and the two side cavities are connected to the cavity 41. The bottom of the vertical cavities on both sides of the U-shaped oil cavity 42 is provided with a plane 45. Multiple outwardly protruding radial strips 43 are provided in the angle area between the plane 45 and the vertical cavity sidewalls connected to it. The outer surface of the strip 43 is set as a sloping surface, and an arched concave point structure is formed between multiple strips 43. The two openings at the upper end of the U-shaped oil cavity 42 are connected to the oil cavity of the oil cup. When e-liquid is injected or the e-liquid cartridge is shaken, the high-speed flowing e-liquid will first contact the arched concave point structure. The concave point can "accommodate" part of the impact energy and prevent the e-liquid from directly hitting the cavity wall and forming turbulence. At the same time, the "outward convex" shape of the strip 43 can disperse the concentrated impact force into multiple small-velocity oil flows, completely solving the problem of "droplet splashing and mixed disorder" in traditional e-liquid cartridges. Each diameter strip 43 has an outer surface designed as a sloping surface (not a vertical straight surface). This structure follows the principles of fluid mechanics: when e-liquid slides down the sloping surface under the action of gravity or surface tension, the sloping surface can guide the direction of the oil flow and avoid "disorderly flow"; when static, the e-liquid can slowly penetrate to the heating element through the sloping surface to avoid "dry burning due to lack of oil"; when used dynamically (such as the negative pressure effect when vaping), the sloping surface can accelerate the oil flow and match the e-liquid consumption rhythm of the heating element.

[0025] The heating element is installed in the heating element mounting cavity, and after the heating element is installed, it separates the U-shaped oil cavity 42 from the side cavities on both sides.

[0026] The heating element includes a silicone sheet 5 and a heating element 6. The silicone sheet 5 has at least one through-hole on both sides. After one side is attached to the heating element 6, it is placed into the mounting cavity of the heating element, with the silicone sheet 5 facing inward. The through-hole of the silicone sheet 5 then becomes a "quantitative oil supply channel": e-liquid flows through the guide strip to the inside of the silicone sheet 5, and then permeates to the surface of the heating element 6 through the through-hole. After the e-liquid comes into contact with the high-temperature heating element 6, it instantly vaporizes into smoke (a phase change process from liquid to gas). The high-temperature resistance of the silicone sheet 5 prevents e-liquid from leaking into the bottom cover.

[0027] The heating element 6 is a ceramic heating element. Its internal heating wire heats up rapidly when energized, and the uniform thermal conductivity of the ceramic material allows the heating element 6 to heat up.

[0028] The oil cup and the bottom cover are fastened together, and the bottom cover is also fastened together with the atomizing part.

[0029] The bottom cover includes an insulating bottom cover 8, two electrode rods 9, and an oil-absorbing cotton 7. The insulating bottom cover 8 has a stepped hole for the two electrode rods 9 to pass through, and a cavity is provided at one end of the bottom cover for fastening. The oil-absorbing cotton 7 is located in the cavity. The insulating bottom cover 8 has two axially arranged protrusions on the edge of its cavity opening; The insulating bottom cover 8 has two protrusions on its outer circumferential surface facing away from each other.

[0030] The absorbent cotton 7 is in close contact with the outer side of the heating element 6. If there is a very small amount of e-liquid that has seeped out due to "excessive negative pressure", the absorbent cotton 7 will quickly absorb it. This not only prevents the e-liquid from contacting the electrode rod 9 and causing a short circuit, but also allows the absorbent cotton to replenish the e-liquid on the surface of the heating element 6 through the "capillary action" when there is insufficient e-liquid, further reducing the risk of dry burning.

[0031] The e-cigarette cartridge also includes a silicone cover 3, which covers the atomizing part body 4 to form a sealed structure between the atomizing part body 4 and the oil cup. The silicone cover 3 has a first through hole in the middle and second through holes on both sides. The first through hole allows the end of the smoke guiding channel in the oil cup to pass through, and the second through holes are used for passing e-liquid.

[0032] The oil cup includes an oil cup 1 and a cup sleeve 2. A thin rod extends from one end of the oil cup 1 to form a mouthpiece. The inner channel of the mouthpiece is connected to the smoke guide channel. The outside of the mouthpiece is an annular groove, and the cup sleeve 2 is fitted into the annular groove. When filling the oil cup 1 with oil, the mouthpiece of the oil cup 1 faces downwards, and then the e-liquid is poured into the oil chamber. Then, the assembly consisting of the atomizing part, the silicone cover, and the base part is inserted, so that the base part and the oil cup part are fastened and fixed. Then, the mouthpiece of the oil cup 1 faces upwards. At this time, the e-liquid will enter the U-shaped oil chamber 42. As the e-liquid falls into the U-shaped oil chamber 42 at high speed, air pressure is generated. The air pressure and the e-liquid strongly impact each other, forming a wave-like water pattern. However, the multiple diameter strips 43 provided by this utility model can prevent the e-liquid from blocking the channel, thus preventing the formation of air pressure.

[0033] The oil cup 1 has two first buckle holes symmetrically provided at one end away from the nozzle. The two protrusions are correspondingly snapped into the two first buckle holes so that the oil cup part and the bottom cover part are fastened together.

[0034] The atomizing part body 4 has two second buckle holes symmetrically provided on its side wall. The two protruding buckles are correspondingly fastened into the two second buckle holes so that the bottom cover is also fastened to the atomizing part.

[0035] In use, the e-cigarette cartridge of this invention injects e-liquid into the U-shaped oil cavity 42 via top filling. The e-liquid flows within the U-shaped oil cavity 42, and when it passes the arched concave point structure at the bottom of the two vertical cavities, the sloping surface of the diameter strip 43 guides the flow, while the arched concave point structure buffers the impact of the e-liquid. The e-liquid reaches the heating element 6 through the through-hole of the silicone sheet 5. The electrode rod 9 is connected to an external power source to power the heating element 6. The heating element 6 heats up and atomizes the e-liquid. The atomized smoke passes sequentially through the side cavity, cavity 41, and smoke guide channel, and is finally inhaled by the user through the mouthpiece. Throughout the process, the silicone sheet 5 and silicone cover 3 ensure the cartridge's airtightness, while the oil-absorbing cotton 7 absorbs excess e-liquid to prevent dry burning.

[0036] In summary, the optimized oil intake mode of the e-cigarette cartridge of this utility model is as follows: The U-shaped oil cavity design of this utility model, combined with the arched concave structure of the inner wall, can ensure the uniform distribution of e-liquid inside, realize the efficient conduction of the internal flow channel, and solve the problems of inconvenient oil intake and uneven e-liquid distribution of traditional cartridges. This invention relates to an electronic cigarette cartridge designed to mitigate impact-induced loss of control: the radial strips at the bottom of the vertical cavities on both sides of the U-shaped oil chamber form an arched concave point structure, and the outer surface of the radial strips is a sloping surface. When e-liquid enters the U-shaped oil chamber, the arched concave point structure can buffer the impact of the e-liquid, reduce the generation of turbulence, avoid droplet splashing and disordered e-liquid mixing, and at the same time reduce the impact damage of e-liquid to the inner wall, thus extending the life of the cartridge. This invention improves the control precision of e-liquid in electronic cigarette cartridges: Combining fluid mechanics principles, this invention designs an arched concave point structure with an "arched concave buffer" and a radial sloping surface with a "sloping guide". The two work together to achieve a functional balance between "impact absorption" and "flow rate enhancement", which greatly improves the control precision of e-liquid and ensures the stability of atomization effect. This utility model of electronic cigarette cartridge has a stable and reliable structure: the components are connected by a snap-fit ​​method, and with the sealing effect of silicone sheet and silicone cover, it is not only easy to assemble and disassemble, but also ensures the overall sealing and structural stability of the cartridge, effectively preventing e-liquid leakage and improving the overall performance and user experience of the cartridge.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An electronic cigarette cartridge with an inner wall arched recess structure for the top oil inlet, comprising an oil cup portion, a bottom cover portion, and an atomizing portion, wherein the oil cup portion and the bottom cover portion are connected to form a cavity, the atomizing portion is installed in the cavity, and the oil cup portion further comprises a smoke guiding channel, characterized in that, The atomizing unit includes: The atomizing part body (4) has a cavity (41) connected to the smoke guide channel, a U-shaped oil cavity (42) separated from the cavity (41), and a heating component mounting cavity. The heating component mounting cavity is located on the lower side of the bottom curved section of the U-shaped oil cavity (42). Side cavities are formed on both sides of the heating component mounting cavity, and the side cavities on both sides are connected to the cavity (41). The bottom of the vertical cavities on both sides of the U-shaped oil cavity (42) is provided with a plane (45). Multiple outwardly protruding radial strips (43) are provided in the angle area between the plane (45) and the vertical cavity sidewall connected to it. The outer side surface of the radial strips (43) is provided as a slope surface, and an arch concave point structure is formed between the multiple radial strips (43). A heating element is installed in the heating element mounting cavity, and after the heating element is installed, it separates the U-shaped oil cavity (42) from the side cavities on both sides; The heating element includes a silicone sheet (5) and a heating element (6). The silicone sheet (5) has at least one through hole that extends through both sides. One side of the silicone sheet (5) is attached to the heating element (6) and then placed into the heating element mounting cavity. The silicone sheet (5) is positioned facing inward.

2. The electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole according to claim 1, characterized in that, The heating element (6) is a ceramic heating element.

3. The electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole according to claim 1, characterized in that, The oil cup and the bottom cover are fastened together, and the bottom cover is also fastened together with the atomizing part.

4. The electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole according to claim 3, characterized in that, The bottom cover includes an insulating bottom cover (8), two electrode rods (9), and an oil-absorbing cotton (7). The insulating bottom cover (8) has a stepped hole through which the two electrode rods (9) pass, and a cavity is provided at one end of the bottom cover. The oil-absorbing cotton (7) is located in the cavity. The insulating bottom cover (8) has two axially arranged protrusions on the edge of its cavity opening; The insulating bottom cover (8) has two protrusions on its outer circumferential surface facing away from each other.

5. The electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole according to claim 4, characterized in that, The oil cup part includes an oil cup (1) and a cup sleeve (2). A thin rod extends from one end of the oil cup (1) to form a mouthpiece. The inner channel of the mouthpiece is connected to the smoke guide channel. The outside of the mouthpiece is an annular groove, and the cup sleeve (2) is fitted into the annular groove.

6. The electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole according to claim 5, characterized in that, The oil cup (1) has two first buckle holes symmetrically provided at one end away from the nozzle. The two protrusions are correspondingly snapped into the two first buckle holes so that the oil cup part and the bottom cover part are fastened together.

7. The electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole according to claim 4, characterized in that, The side wall of the atomizing part body (4) is symmetrically provided with two second buckle holes, and the two protruding buckles are correspondingly fastened into the two second buckle holes so that the bottom cover is also fastened to the atomizing part.

8. The electronic cigarette cartridge with an inner wall arched concave structure for the top oil inlet hole according to claim 1, characterized in that, The e-cigarette cartridge also includes a silicone cover (3), which covers the atomizing part body (4) to form a sealed structure between the atomizing part body (4) and the oil cup.

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