A bright oil electronic cigarette oil inlet structure with gas-liquid separation function
By designing the spiral groove and vent hole in the atomizing tube, the leakage problem of e-liquid electronic cigarettes is solved, achieving gas-liquid separation and pressure balance, and ensuring stable delivery of e-liquid.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JUNQIFENG ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-26
AI Technical Summary
Existing e-cigarettes with visible oil are prone to leakage and cannot effectively achieve gas-liquid separation.
A spiral groove and a vent hole are set in the spiral groove of the atomizing tube. The spiral groove generates a swirling effect to achieve gas-liquid separation. The vent hole maintains fluid communication with the oil storage chamber, forming a gas-liquid separation channel. The spiral groove design, which utilizes the spiral shape and venting method, realizes the gas flow separation channel. The synergistic effect of the spiral groove and the vent hole achieves gas-liquid separation.
It effectively prevents oil leakage, ensures gas-liquid separation, maintains gas pressure balance, prevents gas phase components from entering the oil storage chamber, and achieves dynamic gas-liquid separation.
Smart Images

Figure CN224268323U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic cigarette technology, and specifically to an oil inlet structure for an open-oil electronic cigarette with gas-liquid separation function. Background Technology
[0002] Open-top e-cigarettes typically use an e-liquid cup and an atomizing tube within the cup to store e-liquid. The e-liquid enters the atomizing tube through an inlet and flows into a reservoir inside, supplying e-liquid to the atomizer coil. The coil then atomizes the e-liquid into vapor for the user to inhale. Because the atomizer coil is placed within an axial vapor channel formed by the reservoir, and this channel connects to the outside world via the mouthpiece, an opening is created between the coil and the outside environment. Therefore, existing open-top e-cigarettes are prone to e-liquid leakage. Utility Model Content
[0003] The technical problem solved by this utility model is to provide an oil inlet structure for a clear oil electronic cigarette with gas-liquid separation function; gas-liquid separation is achieved in the spiral oil inlet structure, and the air pressure balance can be adjusted at the same time; ensuring that no oil leakage problem occurs.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is:
[0005] The device includes an oil cup, an atomizing tube, and a lower silicone sealant in the oil cup. A mouthpiece is formed at the top of the oil cup, and an atomizing tube is connected to the mouthpiece inside the oil cup. The lower silicone sealant is located at the bottom of the oil cup. The device is characterized by: the lower end of the atomizing tube being inserted into the lower silicone sealant; a spiral groove being provided on the outer surface of the lower end of the atomizing tube inserted into the lower silicone sealant; an oil inlet being provided at the top of the spiral groove along its axial direction, and an oil inlet hole being provided at the bottom of the spiral groove along its axial direction; a vent hole being provided above the spiral groove along the axial direction of the atomizing tube; and the vent hole connecting the inside and outside of the atomizing tube.
[0006] The vent hole is a horizontally arranged funnel shape, with the bottom of the hole, which has a smaller diameter, located inside the atomizing tube; and the top of the hole, which has a larger opening, located outside the atomizing tube. The vent hole corresponds to the oil storage cavity formed by the oil cup above the silicone below the oil cup.
[0007] The top of the spiral groove is an annular section; an oil inlet is provided in the annular section; starting from the oil inlet, a spiral groove is formed below the annular section; an oil outlet is formed at the end of the spiral groove; an annular groove is provided below the spiral groove; the annular groove is connected to the oil outlet, and an oil inlet hole is provided at the bottom of the groove.
[0008] The length of the spiral groove is half a circle around the outer circumference of the atomizing tube.
[0009] An oil inlet hole is provided at the bottom of the annular groove corresponding to the open oil outlet; an oil inlet hole is also provided at the bottom of the circumferentially symmetrical annular groove.
[0010] The oil inlet consists of three small holes arranged side by side.
[0011] This invention features a spiral groove structure that generates a swirling effect during fluid transport, causing entrained gas to accumulate along the spiral wall under centrifugal force. The vent hole maintains fluid communication with the oil storage chamber, forming a gas-liquid separation channel. Through the synergistic effect of the spiral groove and the vent hole, a three-dimensional swirling field is established during fluid transport. The gas-liquid two-phase flow produces a significant stratification effect, and the vent hole, positioned at the crest of the spiral, generates a pressure-directed driving force, causing the gaseous components to be rapidly discharged through the vent hole into the oil storage chamber, achieving dynamic gas-liquid separation. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings:
[0013] Figure 1 This is a partial front sectional view of the electronic cigarette of this utility model;
[0014] Figure 2 This is a partial side sectional view of the electronic cigarette of this utility model;
[0015] Figure 3 This is a partial exploded perspective view of the electronic cigarette of this utility model;
[0016] Figure 4 These are perspective views of the electronic smoke atomizing tube 2 of this utility model from various angles;
[0017] Figure 5 This is a schematic diagram of the electronic cigarette of this utility model in its flat position. Detailed Implementation
[0018] like Figure 1-5 As shown, the electronic cigarette oil inlet structure of this utility model includes an oil cup 1, an atomizing tube 2, a lower silicone oil cup 3, an oil storage chamber 4, and an oil storage cotton 5. A mouthpiece 11 is formed at the top of the oil cup 1, and the atomizing tube 2 is connected to the mouthpiece 11 inside the oil cup 1; the lower silicone oil cup 3 is located at the bottom of the oil cup 1.
[0019] The lower end of the atomizing tube 2 is inserted into the silicone 3 under the oil cup; a spiral groove is provided on the outer surface of the lower end of the atomizing tube 2 inserted into the silicone 3 under the oil cup.
[0020] Specifically, the top of the spiral groove is an annular portion 21; an oil inlet 22 is provided in the annular portion 21; starting from the oil inlet 22, a spiral groove 23 is formed below the annular portion 21; an oil outlet 24 is formed at the end of the spiral groove 23; an annular groove 25 is provided below the spiral groove 23; the annular groove 25 communicates with the oil outlet 24, and an oil inlet hole 26 is provided at the bottom of the groove.
[0021] The spiral groove 23 is half a circle around the outer circumference of the atomizing tube. An oil inlet 26 is provided at the bottom of the annular groove 25 corresponding to the clear oil outlet 24; simultaneously, an oil inlet 26 is also provided at the bottom of the symmetrical annular groove 25. Each oil inlet 26 consists of three small holes arranged side-by-side.
[0022] See Figure 1 As shown, the silicone 3 under the oil cup fits tightly against the outer surface of the atomizing tube 2 below the annular part 21, the spiral groove part 23, and the annular groove part 25. The e-liquid above the annular part 21 can only flow in from the annular part 21, and then flow out from the clear oil outlet 24 along the spiral groove part 23; then, it flows from the annular groove part 25 to the oil inlet 26; and then flows into the atomizing tube 2 through the oil inlet 26.
[0023] See Figure 5 As shown, the cross-section of the e-cigarette is generally flat. Rotating the atomizer tube 2 causes the oil inlet 26 to face the relatively wide sides of the e-cigarette. When a portion of the e-liquid is inhaled (e.g., a quarter, or more), the e-liquid cannot enter the atomizer tube when the e-cigarette is laid flat (in both directions). If the e-cigarette is laid flat with the right side of the table A as support, the oil inlet is higher than the oil surface, forming a barrier and preventing oil from entering. If the e-cigarette is laid flat with the left side of the table B as support, the e-liquid outlet 24 is higher than the oil surface, forming a barrier and preventing oil from entering. This design prevents leakage when the e-cigarette is laid flat.
[0024] See Figures 2 to 5 As shown, a vent hole 27 is provided above the annular portion 21 of the spiral groove in the axial direction of the atomizing tube 2; the vent hole 27 connects the inside and outside of the atomizing tube 2; the inside corresponds to the oil storage cotton 5; and the outside corresponds to the oil storage chamber 4 formed by the oil cup. The vent hole is a horizontally arranged funnel shape, with the smaller bottom opening located inside the atomizing tube 2 and the larger top opening located outside the atomizing tube 2. During the oil intake process of the spiral groove, the vent hole 27 and the oil storage chamber 4 maintain fluid communication, forming a gas-liquid separation channel.
[0025] 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.
[0026] 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. An oil inlet structure for an e-cigarette with gas-liquid separation function, comprising an oil cup, an atomizing tube, and a silicone sealant at the bottom of the oil cup; a mouthpiece is formed at the top of the oil cup, and an atomizing tube is connected to the mouthpiece inside the oil cup; the silicone sealant at the bottom of the oil cup is characterized in that: The lower end of the atomizing tube is inserted into the silicone oil cup; a spiral groove is provided on the outer surface of the lower end of the atomizing tube inserted into the silicone oil cup; an oil inlet is provided at the top of the spiral groove in the axial direction, and an oil inlet hole is provided at the bottom of the spiral groove in the axial direction; a vent hole is provided above the spiral groove in the axial direction of the atomizing tube; the vent hole connects the inside and outside of the atomizing tube.
2. The clear oil inlet structure for electronic cigarettes with gas-liquid separation function according to claim 1, characterized in that: The vent hole is a horizontally arranged funnel shape, with the bottom of the hole, which has a smaller diameter, located inside the atomizing tube; and the top of the hole, which has a larger opening, located outside the atomizing tube. The vent hole corresponds to the oil storage cavity formed by the oil cup above the silicone below the oil cup.
3. The clear oil inlet structure for electronic cigarettes with gas-liquid separation function according to claim 1 or 2, characterized in that: The top of the spiral groove is an annular section; an oil inlet is provided in the annular section; starting from the oil inlet, a spiral groove is formed below the annular section; an oil outlet is formed at the end of the spiral groove; an annular groove is provided below the spiral groove; the annular groove is connected to the oil outlet, and an oil inlet hole is provided at the bottom of the groove.
4. The clear oil inlet structure for electronic cigarettes with gas-liquid separation function according to claim 3, characterized in that: The length of the spiral groove is half a circle around the outer circumference of the atomizing tube.
5. The clear oil inlet structure for electronic cigarettes with gas-liquid separation function according to claim 3, characterized in that: An oil inlet hole is provided at the bottom of the annular groove corresponding to the open oil outlet; an oil inlet hole is also provided at the bottom of the circumferentially symmetrical annular groove.
6. The clear oil inlet structure for electronic cigarettes with gas-liquid separation function according to claim 4, characterized in that: An oil inlet hole is provided at the bottom of the annular groove corresponding to the open oil outlet; an oil inlet hole is also provided at the bottom of the circumferentially symmetrical annular groove.
7. The clear oil inlet structure for electronic cigarettes with gas-liquid separation function according to claim 6, characterized in that: The oil inlet consists of three small holes arranged side by side.