An electronic cigarette filling and air intake structure
By integrating the e-liquid filling port and air intake channel into the e-cigarette using a silicone kit and a nested snap-fit structure, the problems of complex structure and large size of e-cigarettes are solved, achieving compact design, convenient assembly and efficient production, and improving user experience and portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN NOVEL TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-03
AI Technical Summary
The existing design of separate oil filling port and air inlet for electronic cigarettes results in complex structure, numerous parts, difficult assembly, large size, poor portability, and high risk of sealing problems.
A single silicone kit integrates the oil inlet and air intake channels. The nested parts and the snap-fit structure of the silicone kit achieve a high degree of integration of oil filling and air intake functions. Combined with the L-shaped air passage design and oil baffle, it ensures sealing and convenient assembly.
This technology enables electronic cigarettes to have a compact structure, facilitate production and assembly, reduce production costs, improve user experience and portability, and prevent oil leakage and gas leakage.
Smart Images

Figure CN224440434U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic cigarette technology, and in particular to an electronic cigarette filling and air intake structure. Background Technology
[0002] As a substitute for traditional cigarettes, the market for e-cigarettes is developing rapidly. Currently, the core structure of e-cigarettes on the market, especially refillable e-cigarettes, mainly includes an e-liquid tank, an atomizer coil, and an airflow channel.
[0003] In existing technology, the e-liquid filling port and air intake port of electronic cigarettes are usually separate, independent components. For example, the e-liquid filling port is typically located on the side or bottom of the e-liquid tank with a silicone plug, while the air intake port is located separately in another part of the device casing. This separate design leads to the following problems:
[0004] Complex structure and numerous parts: The separate design requires more independent parts and seals, which increases the overall complexity of the product and the production cost.
[0005] Assembly difficulties and low production efficiency: The large number of parts means complicated assembly processes, high precision requirements for workers, which is not conducive to automated production and results in low production efficiency.
[0006] Large size and poor portability: Due to the dispersed layout of various functional components, a lot of internal space is occupied, making it difficult to make electronic cigarette products smaller and more exquisite, which affects the user's portability.
[0007] High risk of leaks: Multiple openings and sealing points increase the risk of e-liquid leakage, affecting the user experience.
[0008] Therefore, how to simplify the internal structure of electronic cigarettes and achieve higher integration, smaller size and more convenient production methods while ensuring functionality is a technical problem that urgently needs to be solved in this field. Utility Model Content
[0009] (a) Technical problems to be solved
[0010] The technical problem to be solved by this solution is to provide an electronic cigarette filling and air intake structure that is highly integrated, compact, and easy to manufacture and assemble, so as to overcome the defects of existing electronic cigarettes that are complex in structure, large in size, and difficult to assemble due to the dispersion of functional components.
[0011] (II) Technical Solution
[0012] To achieve the above objectives, this utility model provides the following technical solution:
[0013] An electronic cigarette filling and air intake structure, comprising:
[0014] The cavity (10) is divided by a partition (11) to form an oil cavity (12) and an air cavity (13);
[0015] Nesting element (20) is disposed inside the cavity (10);
[0016] A silicone kit (30) is disposed within the cavity (10) and is limited and fixed by the nesting member (20);
[0017] The silicone kit (30) is provided with a protruding post (31), the end face of the protruding post (31) is open to form an oil injection port and is located in the oil cavity (12), and a through hole (32) connected to the air cavity (13) is provided on the side wall of the protruding post (31).
[0018] The silicone kit (30) is also provided with a groove (33), which is located below the oil cavity (12), and an oil-absorbing element (40) is provided in the groove (33).
[0019] As a preferred embodiment, the nesting member (20) is provided with a first locking slot (21), and the inner wall of the first locking slot (21) is provided with a first annular groove (22); the side of the protruding post (31) is provided with a first locking protrusion (34), and the first locking protrusion (34) engages with the first annular groove (22).
[0020] As a preferred embodiment, the nesting member (20) is further provided with a second locking slot (23), which is positioned directly opposite the oil suction member (40), and an oil baffle (50) is installed inside the second locking slot (23).
[0021] As a preferred embodiment, a second annular groove (24) is provided on the inner wall of the second locking slot (23); a second locking protrusion (51) is provided on the periphery of the oil baffle (50), and the second locking protrusion (51) engages with the second annular groove (24).
[0022] As a preferred embodiment, the partition (11) divides the cavity (10) into two parts, the left part being the oil cavity (12) and the right part being the air cavity (13), and the overall structure of the air cavity (13) is L-shaped.
[0023] As a preferred embodiment, the oil-absorbing component (40) is oil-absorbing cotton.
[0024] As a preferred embodiment, the oil baffle (50) is a perforated plate or a mesh plate.
[0025] (III) Beneficial Effects
[0026] Compared with existing technologies, this solution has the following advantages:
[0027] Highly integrated and compact: This solution cleverly integrates the functions of the filling port, air intake interface, and suction component (40) through a silicone kit (30). In particular, by combining the functions of the filling port and air intake port on a single protruding post (31), the number of parts and spatial layout are greatly simplified, allowing the overall size of the electronic cigarette to be significantly reduced, making it more convenient for users to carry.
[0028] Easy assembly and high production efficiency: The rigid nested component (20) serves as the internal skeleton, and through structures such as slots and protrusions, it achieves fast and precise snap-fit assembly with the flexible silicone kit (30) and oil baffle (50). This modular assembly method is simple in process and precise in positioning, making it very suitable for automated production lines, thereby greatly improving production efficiency and reducing manufacturing costs.
[0029] Reliable sealing and a better experience: The nesting part (20) provides a solid support and limit for the silicone kit (30), ensuring the seal between the oil chamber (12) and the air chamber (13), effectively preventing oil leakage and air leakage. The added oil baffle (50) can further prevent e-liquid from being sucked into the mouth during inhalation, improving the user experience. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the structure of an electronic cigarette according to an embodiment of the present invention.
[0031] Figure 2 This is an exploded view of an electronic cigarette according to an embodiment of this utility model.
[0032] Figure 3 This is a schematic diagram of the structure of the silicone kit according to an embodiment of the present invention.
[0033] Figure 4 This is a cross-sectional view of the silicone kit disposed in the cavity according to an embodiment of the present invention.
[0034] Figure 5 This is a cross-sectional view of the cavity in an embodiment of the present invention. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of the electronic cigarette filling and air intake structure of this utility model is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit its scope.
[0036] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will be able to understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] The technical solutions of this solution will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some embodiments of this solution, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this solution without creative effort are within the scope of protection of this solution.
[0039] Example
[0040] Please see Figures 1 to 5 This solution provides an electronic cigarette filling and air intake structure. The structure includes a cavity (10), a nesting piece (20) installed inside the cavity (10), and a silicone kit (30) fixed by the nesting piece (20).
[0041] The cavity (10) is the main part of the electronic cigarette. In this embodiment, a longitudinal partition (11) is provided inside the cavity (10), which divides the internal space of the cavity (10) into two parts, namely an oil cavity (12) for storing e-liquid and an air cavity (13) for guiding airflow.
[0042] The nesting component (20) is preferably a rigid component made of high-strength plastic or metal. Its shape is adapted to the inner wall of the cavity (10) and serves as the internal skeleton of the entire structure, playing a role in supporting and positioning key components.
[0043] The silicone kit (30) is the core functional component of this solution and is made of elastic silicone material. It is installed inside the cavity (10) and precisely positioned and fixed by the nesting piece (20) to ensure its stability.
[0044] The silicone kit (30) integrates multiple functional structures:
[0045] Firstly, the raised column (31). This is a columnar structure extending upwards from the main body of the silicone kit (30). Its top surface is open, extending directly into the oil cavity (12), forming an oil filling port that does not require an additional rubber plug. Users can directly add e-liquid into the oil cavity (12) through this port. At the same time, a through hole (32) is provided on the side wall of the raised column (31), which corresponds to and is connected to the air cavity (13). When the user inhales, external air enters through the air inlet of the electronic cigarette and flows through this through hole (32) into the air cavity (13), forming a complete air intake passage. In this way, the two functions of oil filling and air intake are realized and separated in a tiny raised column (31).
[0046] Secondly, a recessed opening (33). A recessed opening (33) is provided in the portion of the silicone kit (30) located below the oil cavity (12). An oil-absorbing component (40) is placed in the recessed opening (33). In this embodiment, the oil-absorbing component (40) is specifically an oil-absorbing cotton (6).
[0047] Please see Figures 1 to 5 To achieve a secure installation of the silicone kit (30), this embodiment provides a preferred fixing structure. The nesting member (20) has a first locking slot (21) for accommodating the protruding post (31) of the silicone kit (30). A first annular groove (22) is machined on the inner wall of the first locking slot (21). Correspondingly, an annular first locking protrusion (34) is provided on the outer wall of the protruding post (31). During assembly, utilizing the elasticity of the silicone, the protruding post (31) is pressed into the first locking slot (21). The first locking protrusion (34) undergoes elastic deformation as it passes through the groove opening, and when it reaches the position of the first annular groove (22), it springs back and locks into the groove, thereby achieving a secure and quick-release connection.
[0048] Please see Figures 1 to 5To improve the user experience and prevent condensate or e-liquid from being inhaled, this structure can be further optimized. A second locking slot (23) is provided on the nested component (20) above the oil-absorbing component (40) and the atomizing area. An oil-blocking plate (50) is installed in this slot. The oil-blocking plate (50) is preferably a perforated plate or a mesh plate (7), its function being to effectively intercept potentially splashing e-liquid droplets without affecting the passage of vapor. The fixing method of the oil-blocking plate (50) is similar to that of the protruding column (31): a second annular groove (24) is provided on the inner wall of the second locking slot (23), and a matching second locking protrusion (51) is provided on the periphery of the oil-blocking plate (50), which is fixed by a snap-fit method.
[0049] Please refer to it again. Figure 2 In this embodiment, the overall structure of the air chamber (13) is designed in an L-shape. Air enters the upper part of the L-shaped air chamber (13) through the through hole (32) on the side of the protruding column (31), then flows downward, then turns horizontally to flow towards the atomization area, and finally rises and is inhaled by the user through the nozzle. This L-shaped airway design helps to plan a sufficiently long airflow path in a compact space, making the airflow more stable; on the other hand, it also helps to facilitate the return and collection of condensate, further improving the leak-proof performance.
[0050] In summary, this solution integrates core functions such as oil filling, air intake, and oil guiding through the ingenious combination of the nested component (20) and the multifunctional silicone kit (30). The structure is novel and compact, and the assembly is simple and efficient, which significantly improves the overall performance and production convenience of electronic cigarette products.
[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. An electronic cigarette oil injection and air intake structure, characterized in that, include: The cavity (10) is divided by a partition (11) to form an oil cavity (12) and an air cavity (13); Nesting element (20) is disposed inside the cavity (10); The silicone kit (30) is disposed within the cavity (10) and is fixed in place by the nesting member (20). The silicone kit (30) is provided with a protruding post (31), the end face of the protruding post (31) is open to form an oil injection port and is located in the oil cavity (12), and a through hole (32) connected to the air cavity (13) is provided on the side wall of the protruding post (31). The silicone kit (30) is also provided with a groove (33), which is located below the oil cavity (12), and an oil-absorbing element (40) is provided in the groove (33).
2. The electronic cigarette oil injection and air intake structure of claim 1, wherein, The nesting member (20) is provided with a first locking slot (21), and a first annular groove (22) is provided on the inner wall of the first locking slot (21); a first locking protrusion (34) is provided on the side of the protruding column (31), and the first locking protrusion (34) is engaged with the first annular groove (22).
3. The oil injection and air intake structure of the electronic cigarette according to claim 1 or 2, characterized in that, The nesting member (20) is also provided with a second locking slot (23), which is positioned directly opposite the oil suction member (40), and an oil baffle (50) is installed inside the second locking slot (23).
4. The oil injection and air intake structure of the electronic cigarette according to claim 3, characterized in that, The inner wall of the second locking slot (23) is provided with a second annular groove (24); the periphery of the oil baffle (50) is provided with a second locking protrusion (51), which engages with the second annular groove (24).
5. The electronic cigarette oil injection and air intake structure of claim 1, wherein, The partition (11) divides the cavity (10) into two parts, the left part being the oil cavity (12) and the right part being the air cavity (13). The overall structure of the air cavity (13) is L-shaped.
6. The electronic cigarette oil injection and air intake structure of claim 1, wherein, The oil-absorbing component (40) is oil-absorbing cotton.
7. The oil injection and air intake structure of the electronic cigarette according to claim 3, characterized in that, The oil baffle (50) is a perforated plate or a mesh plate.