Electronic cigarette capable of preventing oil leakage

By incorporating flow-guiding silicone to separate the e-liquid space and forming a multi-layered cavity structure within the electronic cigarette, the problem of e-liquid leakage from the atomizer core is solved, resulting in better sealing and a better user experience.

CN224179185UActive Publication Date: 2026-05-01DONGGUAN JUNQIFENG ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JUNQIFENG ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-04-25
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

When not in use, e-cigarettes may leak e-liquid from the atomizer coil into the outside environment due to excessive e-liquid supply from the coil.

Method used

By placing flow-guiding silicone inside the oil cup to separate the e-liquid storage space, and forming a multi-layer cavity structure through the axial guide port and oil inlet hole, the e-liquid enters the atomizer core after being buffered and depressurized, reducing the risk of oil leakage.

Benefits of technology

It effectively prevents e-liquid from leaking out when the e-cigarette is not in use, improving the sealing and user experience of the e-cigarette.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electronic cigarettes, in particular to an electronic cigarette capable of preventing oil leakage. The electronic cigarette comprises an oil cup, an atomizing tube, oil storage cotton, an atomizing core and oil cup support silica gel. A suction nozzle is formed at the top of the oil cup, an atomizing pipe corresponding to the suction nozzle is connected in the oil cup, and oil storage cotton is arranged in the atomizing pipe; the oil storage cotton forms an atomization channel communicated with the suction nozzle; an atomizing core is arranged in the atomizing channel; the oil cup bracket silica gel is arranged at the bottom of the oil cup; an oil inlet is formed in the bottom end of the atomizing pipe; the bottoms of the tar cup support silica gel, the tar cup and the atomizing pipe are closed to form a tobacco tar storage space; diversion silica gel is sleeved outside the atomizing pipe above the oil inlet hole; the flow guide silica gel is matched with the oil cup support silica gel to isolate a channel through which the tobacco tar flows to the atomization pipe oil inlet hole; and an axial oil guide port is formed in the flow guide silica gel. According to the utility model, the problem of tar leakage caused by tobacco tar pressure is solved; the method can be applied to electronic cigarettes.
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Description

An oil-proof electronic cigarette Technical Field

[0001] This utility model relates to the field of electronic cigarette technology, and specifically to an electronic cigarette that is leak-proof. Background Technology

[0002] Electronic cigarettes typically work by supplying e-liquid from the e-liquid cup to the atomizer coil via a reservoir; the coil then atomizes the e-liquid into vapor for the user to inhale. Since the atomizer coil is located within the vapor chamber, which is connected to the outside world via the mouthpiece, this creates a channel between the atomizer coil and the outside environment. If the e-liquid pressure is too high, resulting in excessive e-liquid supply to the atomizer coil, e-liquid will leak from the coil into the outside world when the electronic cigarette is not in use. Summary of the Invention

[0003] The technical problem solved by this utility model is to provide an electronic cigarette that prevents oil leakage; by regulating the oil supply channel of the atomizing core, oil leakage of the atomizing core is avoided.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is:

[0005] The electronic cigarette includes an oil cup, an atomizing tube, an oil reservoir, an atomizing core, and an oil cup support silicone. A mouthpiece is formed at the top of the oil cup, and an atomizing tube is connected to the mouthpiece inside the oil cup, with an oil reservoir inside the atomizing tube. The oil reservoir forms an atomization channel communicating with the mouthpiece. The atomizing core is located within the atomization channel. The oil cup support silicone is located at the bottom of the oil cup. An oil inlet is provided at the bottom of the atomizing tube. The oil cup support silicone, the oil cup, and the bottom of the atomizing tube are sealed to form an e-liquid storage space. A flow-guiding silicone is provided on the outer sleeve of the atomizing tube above the oil inlet. The flow-guiding silicone cooperates with the oil cup support silicone to isolate the e-liquid from flowing to the oil inlet of the atomizing tube. An axial guide port is provided on the flow-guiding silicone.

[0006] Two flow-guiding silicone tubes are sleeved along the axial direction outside the atomizing tube.

[0007] The flow-guiding silicone is spaced apart in the axial direction, and there is a certain distance between the flow-guiding silicone and the oil inlet hole.

[0008] The axial oil guide ports of the two flow-guiding silicone are staggered along the circumferential direction.

[0009] This invention uses a flow-guiding silicone to divide the oil cup's storage space into three parts; an axial guide port and inlet hole form a channel for e-liquid to flow to the atomizer core. This multi-layered cavity structure allows the e-liquid to be effectively buffered and depressurized before entering the atomizer core, reducing internal pressure and thus preventing leakage. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings:

[0011] Figure 1 is a cross-sectional view of the electronic cigarette of this utility model;

[0012] Figure 2 is an exploded perspective view of the electronic cigarette of this utility model;

[0013] Figure 3 is an exploded perspective view of the electronic cigarette part of this utility model. Detailed Implementation

[0014] As shown in Figures 1-3, the electronic cigarette of this invention includes an oil cup 1, an atomizing tube 2, an oil storage cotton 3, an atomizing core 6, an oil cup support silicone 5, and a flow guiding silicone 4. A mouthpiece 11 is formed at the top of the oil cup 1. The atomizing tube 2 is connected to the mouthpiece 11 inside the oil cup 1, and the oil storage cotton 3 is placed inside the atomizing tube 2. The oil storage cotton 3 forms an atomization channel communicating with the mouthpiece; the atomizing core 6 is placed inside the atomization channel. The oil cup support silicone 5 is located at the bottom of the oil cup 1; the oil cup support silicone 5, the oil cup 1, and the bottom of the atomizing tube 2 are sealed to form an e-liquid storage space. The oil cup support silicone 6 has a cup-shaped cross-section; the cup body is positioned corresponding to the atomizing tube 2. The lower end of the atomizing tube 2 is inserted into the cup body of the oil cup support silicone 6, forming a shape where the atomizing tube 2 is inserted into the cup like a straw.

[0015] An oil inlet 21 is provided at the bottom of the atomizing tube 2; two flow guiding silicone 4 are sleeved on the outside of the atomizing tube above the oil inlet 21 along the axial direction; an axial oil guide port 41 is provided on the flow guiding silicone 4.

[0016] A certain distance is formed in the axial direction between the flow-guiding silicone 4 and between the flow-guiding silicone 4 and the oil inlet 21. The uppermost flow-guiding silicone 4 is slightly lower than the top surface of the cup body of the oil cup holder silicone 6 in the axial direction; the flow-guiding silicone 4 and the oil cup holder silicone 6 fit tightly together. Therefore, the e-liquid space is divided into three: the cavity between the upper flow-guiding silicone 4 and the oil cup 1, the cavity between the two flow-guiding silicone 4, and the cavity between the lower flow-guiding silicone 4 and the bottom of the oil cup holder silicone 6. The cavities are connected by axial oil guide ports 41 provided on the flow-guiding silicone 4. The axial oil guide ports 41 of the two flow-guiding silicone 4 are staggered along the circumferential direction. Therefore, the e-liquid needs to flow through the cavity between the upper flow-guiding silicone 4 and the oil cup 1, then through the two axial oil guide ports 41, and finally through the oil inlet 21 into the oil reservoir 3 to supply the atomizer coil 6.

[0017] The flow-guiding silicone 4 divides the oil storage space of the oil cup 1 into three parts; the axial oil guide port 41 and oil inlet hole 21 form a channel for the e-liquid to flow to the atomizer core 6; this multi-layer cavity structure allows the e-liquid to enter the atomizer core 6 after effective buffering and decompression.

[0018] The remaining structures of the electronic cigarette not described in detail above are unrelated to the technical solution of this utility model, and those skilled in the art can understand them in detail through the drawings; they will not be described further here.

[0019] The above embodiments are descriptions of specific implementations of this utility model and are not intended to limit this utility model; all equivalent modifications that can be obtained from the above description should be within the protection scope of this utility model.

Claims

1. A leak-proof electronic cigarette, comprising an oil cup, an atomizing tube, an oil-retaining cotton, an atomizing core, and a silicone oil cup support; a mouthpiece is formed at the top of the oil cup, and an atomizing tube is connected to the mouthpiece inside the oil cup, with the oil-retaining cotton inside the atomizing tube; the oil-retaining cotton forms an atomization channel communicating with the mouthpiece; an atomizing core is disposed within the atomization channel; and the silicone oil cup support is disposed at the bottom of the oil cup; characterized in that: An oil inlet is provided at the bottom of the atomizing tube; the silicone of the oil cup holder, the oil cup, and the bottom of the atomizing tube are sealed to form an e-liquid storage space; a flow-guiding silicone is provided on the outer sleeve of the atomizing tube above the oil inlet; the flow-guiding silicone cooperates with the silicone of the oil cup holder to isolate the channel for e-liquid to flow to the oil inlet of the atomizing tube; an axial oil guide port is provided on the flow-guiding silicone.

2. The leakproof electronic cigarette of claim 1, wherein: Two flow-guiding silicone tubes are sleeved along the axial direction outside the atomizing tube.

3. The leakproof electronic cigarette of claim 2, wherein: The flow-guiding silicone is spaced apart in the axial direction, and there is a certain distance between the flow-guiding silicone and the oil inlet hole.

4. The leak-proof electronic cigarette according to claim 2 or 3, characterized in that: The axial oil guide ports of the two flow-guiding silicone are staggered along the circumferential direction.