Air inlet structure of electronic cigarette

Abstract

The utility model discloses an air inlet structure of an electronic cigarette. The air inlet structure comprises a battery support, an oil cup and an air inlet column. The outlet of the air inlet column extends into the cavity of the oil cup; the plane where the outlet of the air inlet column is located is flush with the end face of the battery support, or the plane where the outlet of the air inlet column is located is higher than the end face of the battery support. The oil cup is provided with a cambered surface inner wall area; an outlet of the air inlet column is located in a cavity formed by the cambered surface inner wall area. According to the air inlet structure of the electronic cigarette, the distance between the outlet of the air inlet column and the inner wall of the oil cup is reduced, meanwhile, the inner wall, where the outlet of the air inlet column is located, of the oil cup is designed to be the cambered surface, air flow impacts the cambered surface transition of the oil cup, the air flow more smoothly takes away atomizing media, the impact sound of the air flow is reduced, and condensate can be effectively reduced. And the plane ceramic heating wire adopted by the utility model is not easy to deform and higher in stability, and the overall service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic cigarette technical field, concretely relates to an electronic cigarette air inlet structure. BACKGROUND

[0002] An electronic cigarette mainly comprises a smoke pipe for containing atomization medium, an atomizer and a battery. The atomizer is powered by the battery and can convert the liquid atomization medium in the cartridge into aerosol to achieve a smoking-like sensation. Electronic cigarettes do not contain tar, suspended particles and other harmful components in traditional cigarettes, and thus are considered to be healthier than traditional cigarettes. Electronic cigarettes can add various flavors such as chocolate and mint according to personal preferences. Some electronic cigarettes also use new technologies such as heat-not-burn technology, which generates vapor by heating tobacco rather than burning, further reducing the production of harmful substances, which further promotes the development of electronic cigarette technology.

[0003] At present, the airflow of the electronic cigarette on the market, especially the single airway electronic cigarette product, generally directly impacts vertically at 90° or impacts at a small angle on the inclined surface when entering the oil cup, which may cause the product airflow sound to be too loud, and due to the small contact surface, the components (such as PG alcohol-based blending agent) in the atomized tobacco tar may condense to form more condensate when meeting cold air after hitting the cartridge wall or air, which may be accumulated at the joint of the mouthpiece and the atomizer, or even backflow to the bottom through the smoke duct and the atomization chamber and overflow through the air port, affecting the smoking experience, and in severe cases, the hole may be blocked and no smoke may be emitted. SUMMARY

[0004] The utility model aims at overcoming at least one defect of the prior art, and provides an electronic cigarette air inlet structure to achieve the technical effects of reducing airflow sound, maintaining smoke volume, and reducing condensate.

[0005] The utility model provides an electronic cigarette air inlet structure, which comprises a battery support, an oil cup and an air inlet column. The outlet of the air inlet column extends into the cavity of the oil cup. The plane where the outlet of the air inlet column is located is flush with the end face of the battery support, or the plane where the outlet of the air inlet column is located is higher than the end face of the battery support. The oil cup is provided with an arc inner wall area. The outlet of the air inlet column is located in the cavity formed by the arc inner wall area.

[0006] The battery support, oil cup and air inlet column are structural members in the prior art, wherein the battery support is used for mounting and fixing the battery of the electronic cigarette; the oil cup is used for containing tobacco tar; and the air inlet column is used for guiding airflow. After the airflow enters the battery support from the outside, the airflow enters the oil cup through the air inlet column, and the airflow is heated to form smoke under the action of the heating wire of the electronic cigarette. Finally, the smoke flows out through the suction nozzle at the top of the electronic cigarette. The core of the utility model is the improvement of the outlet position of the air inlet column. In the prior art, the outlet of the air inlet column is generally designed to be lower than the end face of the battery support. After the airflow enters the oil cup, the airflow vertically or at an angle impacts the inner wall of the oil cup, resulting in unstable airflow and the formation of condensate. The above defects are avoided by two improvements. Firstly, the outlet of the air inlet column is designed to be flush with the end face of the battery support or to extend upward beyond the end face, thereby reducing the distance between the outlet of the air inlet column and the inner wall of the oil cup. Secondly, the inner wall of the oil cup where the outlet of the air inlet column is located is designed as a curved surface, so that the airflow impacts the curved surface of the oil cup, thereby reducing the distance between the airflow and the heating body, making the airflow fully impact the heating body, and making the airflow more smoothly take away the atomized medium. At the same time, the sound of the airflow impact is reduced. In addition, the resistance of the airflow to the curved surface is greater than the resistance of the airflow to the vertical contact or the inclined contact, thereby effectively reducing the generation of condensate.

[0007] Preferably, the height difference between the outlet of the air inlet column and the end face of the battery support is h; wherein 0 < h ≤ 12 mm.

[0008] More preferably, 0 < h ≤ 10 mm.

[0009] Preferably, in some embodiments of the utility model, 0 < h ≤ 3 mm.

[0010] In some embodiments of the utility model, 0 ≤ h ≤ 2 mm.

[0011] Preferably, the curvature radius R of the curved surface of the curved surface inner wall region ranges from 1 to 1000 mm.

[0012] More preferably, the curvature radius R of the curved surface of the curved surface inner wall region ranges from 100 to 300 mm. In some embodiments of the utility model, R is 250 mm.

[0013] Further, the shortest distance D from the center point of the outlet of the air inlet column to the curved surface inner wall region is 2.5 to 14.5 mm.

[0014] Further, the air inlet structure of the electronic cigarette further comprises a ceramic heating wire, the ceramic heating wire is installed in the oil cup, the bottom is connected to the electrode of the electronic cigarette, the electrode is arranged above the battery support, and the ceramic heating wire is a planar ceramic heating wire.

[0015] The utility model discloses another technical point lies in, the heating wire of the scheme selected is ceramic heating wire, and it is plane ceramic heating wire, the cylindrical ceramic heating wire in conventional technology is placed in the ceramic center hole, and heating wire is easy to deform, and the consistency is poor, and there is occasionally the risk of paste core, adopts plane ceramic heating wire and is not easy to deform, and the stability is higher.

[0016] Further, the electronic cigarette air inlet structure further comprises a ceramic sealing rubber ring, and the ceramic sealing rubber ring is sleeved on the top of the ceramic heating wire. Avoiding smoke from leaking out of the top of the ceramic heating wire, the overall sealing performance is improved.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The electronic cigarette air inlet structure of the utility model reduces the distance between the air inlet column outlet and the inner wall of the oil cup by designing the outlet of the air inlet column to be flush with the end face of the battery support or extending upward beyond the end face. Meanwhile, the inner wall of the oil cup where the air inlet column outlet is located is designed as a curved surface, so that the airflow impacts the curved surface of the oil cup, reducing the distance between the airflow and the heating body, making the airflow fully impact the heating body, and making the airflow more smoothly take away the atomization medium. At the same time, the sound of airflow impact is reduced, and the resistance of airflow contact with the curved surface is greater than that of vertical contact or oblique contact with the resistance cushioning surface, so that the generation of condensate is effectively reduced. The planar ceramic heating wire used in the utility model is not easy to deform, has higher stability, and improves the overall service life. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a cross-sectional view of an electronic cigarette with the electronic cigarette air inlet structure of the utility model.

[0020] Figure 2 It is a local enlarged structure schematic view of the electronic cigarette air inlet structure of the utility model in Example 1.

[0021] Figure 3 It is a local enlarged structure schematic view of the electronic cigarette air inlet structure of the utility model in Example 2. DETAILED DESCRIPTION

[0022] The drawings in the embodiments describe the technical solutions in the embodiments of the utility model in more detail. In the drawings, the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The described embodiments are part of the embodiments of the utility model, not all of the embodiments. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. The embodiments of the utility model will be described in detail below with reference to the drawings.

[0023] It should be noted that if the application embodiments involve directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, motion condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indication also changes accordingly.

[0024] In addition, if the application embodiments involve "first", "second" and the like, the "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope claimed by the present application.

[0025] Embodiment 1

[0026] The present embodiment provides an electronic cigarette air inlet structure, as shown in Figure 1 The electronic cigarette includes a main body 1, a battery support 2, an oil cup 3, an air inlet column 4, a ceramic heating wire 5, a ceramic sealing rubber ring 6, an electrode 7, a suction nozzle 8 and the like. The outlet of the air inlet column 4 extends into the cavity of the oil cup 3. In combination with Figure 2 The outlet plane of the air inlet column 4 is flush with the end face of the battery support 2. The oil cup 3 is provided with an arc inner wall area 10. The outlet of the air inlet column 4 is located in the cavity formed by the arc inner wall area 10. The oil cup 3 is used to contain tobacco tar. The air inlet column 4 plays a role of airflow guiding. After the airflow enters the battery support 2 from the outside, it enters the oil cup 3 through the air inlet column 4, and is heated to realize atomization under the action of the electronic cigarette heating wire. The atomized smoke passes through the oil cup 3 and finally flows out from the suction nozzle 8 at the top of the electronic cigarette. The ceramic heating wire 5 is installed in the oil cup 3 and is connected to the electrode 7 of the electronic cigarette at the bottom. The electrode 7 is arranged above the battery support 2. The ceramic heating wire 5 is a planar ceramic heating wire 5. The electronic cigarette air inlet structure further includes a ceramic sealing rubber ring 6, which is sleeved on the top of the ceramic heating wire 5. This avoids the leakage of smoke from the top of the ceramic heating wire 5 and improves the overall sealing performance.

[0027] In combination with Figure 2As shown, the height difference between the outlet of the air inlet column 4 and the end face of the battery support 2 is h in this embodiment; wherein h = 0, that is, the outlet of the air inlet column 4 is flush with the end face of the battery support 2. The arc surface inner wall area 10 is inclined, and the arc surface curvature radius R is in the range of 250 mm. The axis on which the midpoint p1 of the outlet of the air inlet column 4 is located extends to the arc surface inner wall area 10 to form an intersection point p2, wherein the distance D between the midpoint p1 and the intersection point p2 is 2.5 mm.

[0028] Embodiment 2

[0029] This embodiment provides another air inlet structure of an electronic cigarette. The technical difference between this embodiment and Embodiment 1 is that, as shown, Figure 3 As shown, the height difference between the outlet of the air inlet column 4 and the end face of the battery support 2 is h in this embodiment; wherein h = 10 mm. The axis on which the midpoint p1 of the outlet of the air inlet column 4 is located extends to the arc surface inner wall area 10 to form an intersection point p2, wherein the distance D between the midpoint p1 and the intersection point p2 is 12.5 mm.

[0030] Embodiment 3

[0031] The technical difference between this embodiment and Embodiment 1 is that, as shown, the height difference between the outlet of the air inlet column 4 and the end face of the battery support 2 is h; wherein h = 2 mm, the axis on which the midpoint p1 of the outlet of the air inlet column 4 is located extends to the arc surface inner wall area 10 to form an intersection point p2, wherein the distance D between the midpoint p1 and the intersection point p2 is 4.5 mm.

[0032] Embodiment 4

[0033] The technical difference between this embodiment and Embodiment 1 is that, as shown, the height difference between the outlet of the air inlet column 4 and the end face of the battery support 2 is h; wherein h = 12 mm, the axis on which the midpoint p1 of the outlet of the air inlet column 4 is located extends to the arc surface inner wall area 10 to form an intersection point p2, wherein the distance D between the midpoint p1 and the intersection point p2 is 14.5 mm.

[0034] Embodiment 5

[0035] This embodiment provides another air inlet structure of an electronic cigarette. The arc surface curvature radius R of the arc surface inner wall area 10 is 1000 mm.

[0036] Embodiment 6

[0037] The technical difference between this embodiment and Embodiment 1 is that, as shown, the arc surface curvature radius R of the arc surface inner wall area 10 is 1 mm.

[0038] Embodiment 7

[0039] The difference between the embodiment and the embodiment 1 is that the radius of curvature R of the arc surface inner wall area 10 is 10mm.

[0040] Embodiment 8

[0041] The difference between the embodiment and the embodiment 1 is that the radius of curvature R of the arc surface inner wall area 10 is 500mm.

[0042] Embodiment 9

[0043] The difference between the embodiment and the embodiment 1 is that the radius of curvature R of the arc surface inner wall area 10 is 800mm.

[0044] Embodiment 10

[0045] The difference between the embodiment and the embodiment 1 is that the cylindrical ceramic heating wire (5) is adopted.

[0046] The above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced without departing from the spirit and scope of the present application. Those skilled in the art can make other changes within the spirit of the present application and use them in the design of the present application, as long as they do not deviate from the technical effects of the present application. These changes made in the spirit of the present application should be included in the scope of protection of the present application.

Claims

1. An electronic cigarette air inlet structure, comprising a battery support (2), an oil cup (3), and an air inlet column (4); characterized in that, The outlet of the air inlet column (4) extends into the cavity of the oil cup (3); the plane of the outlet of the air inlet column (4) is flush with the end face of the battery holder (2), or the plane of the outlet of the air inlet column (4) is higher than the end face of the battery holder (2); the oil cup (3) is provided with an arc inner wall area (10); the outlet of the air inlet column (4) is located in the cavity formed by the arc inner wall area (10).

2. The electronic cigarette air inlet structure according to claim 1, characterized in that, The height difference between the outlet of the air inlet column (4) and the end face of the battery holder (2) is h; wherein 0 < h ≤ 12 mm.

3. The electronic cigarette air inlet structure according to claim 2, characterized in that, Wherein 3 < h ≤ 10 mm.

4. The electronic cigarette air inlet structure according to claim 2, characterized in that, Wherein 0 < h ≤ 3 mm.

5. The electronic cigarette air inlet structure according to claim 1, characterized in that, The radius of curvature R of the arc surface of the arc inner wall area (10) ranges from 1-1000 mm.

6. The electronic cigarette air inlet structure according to claim 5, characterized in that, The radius of curvature R of the arc surface of the arc inner wall area (10) ranges from 100-300 mm.

7. The electronic cigarette air inlet structure according to claim 6, characterized in that, The radius of curvature R of the arc surface of the arc inner wall area (10) is 250 mm.

8. The electronic cigarette air inlet structure according to any one of claims 1-7, characterized in that, Further comprising a ceramic heating wire (5) installed in the oil cup (3), the bottom of which is connected to an electrode (7) of the electronic cigarette, which is arranged above the battery holder (2), and the ceramic heating wire (5) is a planar ceramic heating wire (5).

9. The electronic cigarette air inlet structure according to claim 8, characterized in that, Further comprising a ceramic sealing rubber ring (6) sleeved on the top of the ceramic heating wire (5).

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