Silica gel structure for sealing threading and electronic cigarette
By designing a silicone wire channel in the electronic cigarette and using the interference fit between the second cavity and the heating wire to achieve a seal, the problems of e-liquid leakage and air leakage are solved, improving the sealing performance and assembly efficiency of the electronic cigarette.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANCHANG IND (SHENZHEN) CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-24
AI Technical Summary
Electronic cigarettes are prone to e-liquid leakage after vibration, leading to circuit board failure and hygiene issues. At the same time, the casing is prone to air leakage during assembly, increasing suction resistance and affecting user experience.
Design a silicone structure comprising a first, second, and third cavity through a wire passage. The second cavity is interference-fitted with the heating wire to achieve a seal. The wire passage consists of three independent channels. The silicone layer is 0.01 mm thick to facilitate the passage of the heating wire and block e-liquid.
It achieves a sealing effect, preventing grease from contaminating electrical components, reducing assembly difficulty and labor costs, and improving assembly efficiency.
Smart Images

Figure CN224155130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing silicone, and in particular to a silicone structure for sealing threaded wires and an electronic cigarette. Background Technology
[0002] In the manufacturing process of e-cigarettes, it is essential to ensure internal sealing during the assembly and fitting of the internal structure. After being subjected to strong vibrations, e-liquid in the e-cigarette chamber can easily leak onto electrical components, causing malfunctions such as circuit board failures, hygiene issues, and a poor user experience.
[0003] Meanwhile, in the manufacturing of e-cigarettes, it is also necessary to ensure that the internal resistance of the e-cigarette is small enough so that a strong negative pressure effect can be formed in the e-cigarette when the user inhales, allowing the user to easily inhale the vapor inside the e-cigarette. However, due to the large tolerance of the parts currently being manufactured, air leakage is prone to occur between the shells during assembly, increasing the resistance and making it difficult for the user to inhale. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a silicone structure for sealing threading and an electronic cigarette.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A silicone structure for sealing threaded wires includes: a silicone block, wherein the silicone block has a threaded wire channel extending through itself, the threaded wire channel including a first cavity, a second cavity and a third cavity, the first cavity, the second cavity and the third cavity being sequentially connected; the diameter of the first cavity and the diameter of the third cavity are greater than the diameter of the second cavity.
[0007] In one embodiment, the second cavity is provided with a silicone layer in the radial direction.
[0008] In one embodiment, there are three threading channels, each independently located within the silicone block and not interconnected.
[0009] In one embodiment, the diameter of the first cavity is larger than the diameter of the third cavity.
[0010] In one embodiment, the thickness of the silicone layer is 0.01 mm.
[0011] In one embodiment, the diameter of the first cavity decreases sequentially along the direction approaching the second cavity, and the second cavity has a cylindrical structure.
[0012] In one embodiment, the diameter of the third cavity increases sequentially in the direction away from the second cavity.
[0013] An electronic cigarette, comprising the aforementioned silicone structure for sealing the threaded part.
[0014] Compared with the prior art, the present invention has at least the following advantages:
[0015] 1. The silicone structure for sealing the wire in this utility model comprises a silicone block with a through-hole for the wire. The through-hole includes a first cavity, a second cavity, and a third cavity, which are sequentially connected. The diameters of the first and third cavities are larger than the diameter of the second cavity. The diameter of the second cavity matches the diameter of the heating wire, resulting in an interference fit / zero fit between the heating wire and the second cavity, achieving a sealing effect. This prevents e-liquid from flowing into the silicone structure below, thus avoiding contamination or interference with electrical components below the structure.
[0016] 2. Compared with the prior art, the silicone structure for sealing threading produced by this utility model has a simplified structure, reduced assembly process, improved assembly efficiency, and reduced labor costs. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.
[0018] Figure 1 This is a schematic diagram of the silicone structure for sealing threading in one embodiment of the present invention;
[0019] Figure 2 This is a schematic diagram of a silicone structure for sealing thread threading in one embodiment of the present invention.
[0020] Figure label:
[0021] Silicone block 100, threading channel 110, first cavity 111, second cavity 112, third cavity 113, silicone layer 114. Detailed Implementation
[0022] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.
[0023] This application proposes a silicone structure for sealing threaded wires; please refer to [link / reference]. Figure 1 and Figure 2It includes: a silicone block 100, which is made of silicone material. The silicone block 100 has a through-hole 110 for accommodating the heating wire. If there is liquid at the top or bottom of the silicone block 100, the heating wire is guided through the through-hole 110 to achieve a sealing effect.
[0024] Specifically, the wiring channel 110 includes a first cavity 111, a second cavity 112, and a third cavity 113, which are sequentially connected. The diameters of the first cavity 111 and the third cavity 113 are larger than the diameter of the second cavity 112, facilitating the insertion of the heating wire through the first cavity 111. The diameter of the second cavity 112 matches the diameter of the heating wire, with an interference fit / zero fit between the heating wire and the second cavity 112. This ensures that after the heating wire passes through the first cavity 111 sequentially through the second cavity 112 and the third cavity 113, liquid is difficult to pass through the second cavity 112, achieving a sealing effect. This prevents e-liquid from flowing into the area below the silicone structure used for sealing the wiring, thus avoiding contamination or interference with electrical components below the silicone structure. Furthermore, compared to existing technologies, the silicone structure used for sealing the wiring provides a simpler structure, reduces assembly processes, improves assembly efficiency, and lowers labor costs.
[0025] In one embodiment, please refer again Figure 1 The second cavity 112 is provided with a silicone layer 114 in the radial direction, and the silicone block 100 and the silicone layer 114 are integrally injection molded. The silicone layer 114 is very thin, so that the heating wire can pierce through it when the lead wire passes through the second cavity 112, and then the heating wire can pass through the entire wire passage 110.
[0026] Furthermore, the silicone layer 114 has a thickness of 0.01 mm. The thickness of the silicone layer 114 is thin enough to avoid difficulty in puncturing the heating wire when threading it through. At the same time, the silicone layer 114 can block the liquid in the first cavity 111, further preventing the liquid from reaching the third cavity 113 through the second cavity 112, and further enhancing the sealing effect.
[0027] Preferably, the diameter of the first cavity 111 is larger than the diameter of the third cavity 113.
[0028] In one embodiment, the diameter of the first cavity 111 gradually decreases towards the second cavity 112, facilitating the alignment and insertion of the heating wire into the first cavity 111 and reducing the difficulty of alignment. Simultaneously, there are no steps between the first cavity 111 and the second cavity 112, allowing for a smooth transition from the first cavity 111 to the second cavity 112, further reducing the difficulty of the heating wire entering the second cavity 112 from the first cavity 111. The second cavity 112 has a cylindrical structure, and the heating wire also has a cylindrical structure, minimizing the gap between the heating wire and the second cavity 112.
[0029] Furthermore, the diameter of the third cavity 113 gradually increases in the direction away from the second cavity 112. That is, the diameter of the third cavity 113 gradually increases in the direction in which the heating wire passes through. Therefore, when the heating wire passes through the third cavity 113, the difficulty of threading the wire gradually decreases, making it easier for the heating wire to pass through the third cavity 113.
[0030] Furthermore, there are three wire-threading channels 110, each independently located within the silicone block 100 and not interconnected. This allows three heating wires to pass through the silicone block 100, preventing them from being concentrated in the same wire-threading channel 110, reducing interference between the heating wires, and facilitating the threading of individual heating wires.
[0031] Furthermore, this application also proposes an electronic cigarette, including the aforementioned silicone structure for sealing the wiring, an atomizing and inhalation assembly, and a housing. The housing is hollow inside, with an oil chamber within it. The atomizing and inhalation assembly includes an atomizer, a mouthpiece, and a circuit board. The oil inlet of the atomizer is inserted into the bottom of the oil chamber, and the end of the atomizer away from the oil inlet is connected to the mouthpiece. The mouthpiece is located at the top of the housing, and the circuit board and atomizer are housed inside the housing. The circuit board is electrically connected to the atomizer, and power is supplied to the atomizer through the circuit board. Simultaneously, the circuit board issues commands to control the atomizer to operate. The silicone structure for sealing the wiring is positioned between the circuit board and the atomizer. The heating wire extending from the e-liquid inlet of the atomizer passes through the wiring channel 110 and connects to the circuit board. The second cavity 112 of the silicone structure for sealing the wiring is interference-fitted / misfitted with the heating wire. In the event of leakage in the e-liquid cavity, the second cavity 112 blocks the e-liquid above the first cavity 111, preventing e-liquid from leaking into the circuit board, achieving a sealing effect. This reduces pollution from e-cigarettes or interference with electrical components below the silicone structure for sealing the wiring. The simplified structure reduces assembly processes, improves assembly efficiency, and lowers labor costs.
[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A silicone structure for sealing threaded wires, characterized in that, include: A silicone block having a through-hole for threading, the through-hole comprising a first cavity, a second cavity, and a third cavity, the first cavity, the second cavity, and the third cavity being sequentially connected; the diameters of the first cavity and the third cavity are greater than the diameter of the second cavity.
2. The silicone structure for sealing threading according to claim 1, characterized in that, The second cavity has a silicone layer disposed in the radial direction.
3. The silicone structure for sealing threading according to claim 1, characterized in that, There are three threading channels, each independently located within the silicone block and not interconnected.
4. The silicone structure for sealing threading according to claim 1, characterized in that, The diameter of the first cavity is larger than the diameter of the third cavity.
5. The silicone structure for sealing threading according to claim 2, characterized in that, The thickness of the silicone layer is 0.01 mm.
6. The silicone structure for sealing threading according to claim 1, characterized in that, The diameter of the first cavity gradually decreases along the direction closer to the second cavity, and the second cavity has a cylindrical structure.
7. The silicone structure for sealing threading according to claim 6, characterized in that, The diameter of the third cavity increases sequentially in the direction away from the second cavity.
8. An electronic cigarette, characterized in that, Includes the silicone structure for sealing threading as described in any one of claims 1-7.