WO2022110145A1

WO2022110145A1 - Electronic cigarette cartridge with fluid one-way valve structure, and application of electronic cigarette cartridge

Info

Publication number: WO2022110145A1
Application number: PCT/CN2020/132777
Authority: WO
Inventors: 伍鹏飞
Original assignee: 深圳市锐丽科技有限公司
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2022-06-02

Abstract

An electronic cigarette cartridge with a fluid one-way valve structure, and the application of the electronic cigarette cartridge. The electronic cigarette cartridge comprises a cartridge housing (100); a one-way valve structure body (300) connected to the cartridge housing (100); a porous metal atomization element (400) connected to the one-way valve structure body (300); and a base (500) connected to the porous metal atomization element (400). The one-way valve structure body (300) has a Tesla valve (301) structure. In the Tesla valve (301), a fluid, when flowing in forward and backward directions, is subjected to different resistances. Therefore, by rationally designing the size of a Tesla valve (301) tube body, the Tesla valve can guide air instead of liquid, that is, same is connected forwards with vaping, so as to adjust the air pressure of a liquid chamber and ensure smooth liquid supply; and a pressure difference can also be consumed by means of a backward resistance, thereby solving and alleviating the problem of an electronic cigarette cartridge leaking liquid under a high-altitude negative pressure.

Description

Electronic pod with fluid one-way valve structure and its application

technical field

The disclosure belongs to the field of electronic cigarettes, and in particular relates to an electronic cigarette cartridge with a fluid one-way valve structure and applications thereof.

Background technique

As people are concerned about their own health and environmental pollution caused by smoking. Electronic cigarettes are favored by more and more consumers as a harm reduction alternative to cigarettes. However, e-cigarette products on the market still have the problem of e-liquid leakage, which brings bad experience to consumers. Especially under the condition of high-altitude negative pressure, the leakage of electronic cigarette liquid is a pain point in the industry. In view of the pain points of the industry, most designers strengthen the sealing design on the oil tank structure when designing the pod structure, and adjust the porosity of the atomizing core, but the problem of oil leakage still exists. At the same time, the use of strengthening the sealed oil tank to solve the problem of oil leakage will cause that in the process of use, with the reduction of e-liquid, if there is no external gas to add in, the oil tank will form a negative pressure, and the e-liquid will supply oil to the atomizing core. Slowed or no flow, unable to aspirate. Therefore, the present disclosure uses the fluid one-way valve structure and the e-liquid collecting tank to solve the problem of improving the oil supply and oil leakage of the electronic cigarette.

public content

One of the main purposes of the present disclosure is to propose an electronic cigarette cartridge with a fluid one-way valve structure and its application.

Specifically, as an aspect of the present disclosure, an electronic cigarette cartridge with a fluid one-way valve structure is provided, including:

pod shell;

The one-way valve structure is connected to the cartridge shell;

a porous metal atomizing element connected to the one-way valve structure; and

The base is connected with the porous metal atomizing element.

As another aspect of the present disclosure, an application of the electronic pod as described above in the field of electronic cigarettes is also provided.

Description of drawings

1 is a schematic structural diagram of an electronic cigarette cartridge with a fluid one-way valve structure in an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a one-way valve structure in an embodiment of the present disclosure.

Description of reference numbers:

100- pod shell; 200- sealing silicone; 300- one-way valve structure; 301- Tesla valve; 302- oil tank end; 303- atomizing chamber end; 304- e-liquid collecting tank; 400- porous metal Atomizer; 500-base; 600-electrode rivet.

Detailed ways

Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings and embodiments to assist those skilled in the art to fully understand the purpose, features and effects of the present disclosure. Exemplary embodiments of the present disclosure are shown in the accompanying drawings, but it should be understood that the present application can also be implemented in various other forms and should not be limited by the embodiments set forth herein. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present disclosure. In addition, the various embodiments provided below and the technical features in the embodiments of the present disclosure may be combined with each other in any manner.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. Furthermore, the terms "comprising", "comprising", "having", etc. used herein indicate the presence of stated features, steps, operations and/or components, but do not preclude the presence or addition of one or more other features, steps , operation or component. All terms (including technical and scientific terms) used herein have the meaning as commonly understood by one of ordinary skill in the art, unless otherwise defined. It should be noted that terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly rigid manner.

The present disclosure discloses an electronic cigarette cartridge with a fluid one-way valve structure, comprising:

pod shell;

The one-way valve structure is connected to the cartridge shell;

a porous metal atomizing element connected to the one-way valve structure; and

The base is connected with the porous metal atomizing element.

In some embodiments of the present disclosure, the one-way valve structure is provided with a Tesla valve, and the two ends of the Tesla valve are respectively connected with the oil tank and the atomization chamber of the electronic cigarette.

In some embodiments of the present disclosure, the Tesla valve is disposed on the outer surface of the electronic cigarette sealing structure body.

In some embodiments of the present disclosure, the Tesla valve has no less than three repeating units.

In some embodiments of the present disclosure, the groove depth of the repeating unit of the Tesla valve is 0.1 to 1 mm, for example, it may be 0.1 mm, 0.2 mm, 0.3 mm, 0.5 mm, 0.8 mm, 1 mm.

In some embodiments of the present disclosure, the groove width of the repeating unit of the Tesla valve is 0.1 to 1 mm, for example, it may be 0.1 mm, 0.2 mm, 0.3 mm, 0.5 mm, 0.8 mm, 1 mm.

In some embodiments of the present disclosure, the one-way valve structure is further provided with an e-liquid collecting tank;

In some embodiments of the present disclosure, the e-liquid collecting tank communicates with the atomization chamber.

In some embodiments of the present disclosure, the electronic cigarette cartridge further includes a sealing member disposed between the cartridge housing and the one-way valve structure;

In some embodiments of the present disclosure, the material used for the sealing member is silica gel.

In some embodiments of the present disclosure, the electronic pod further includes an electrode fixing member, the electrode fixing member is disposed on the base of the pod and is connected to the porous metal atomizing element;

In some embodiments of the present disclosure, the electrode holder includes an electrode rivet.

The present disclosure also discloses the application of the electronic pod as described above in the field of electronic cigarettes.

The technical solutions of the present disclosure will be further described below through specific embodiments and accompanying drawings. It should be noted that the following specific embodiments are only for illustration, and the protection scope of the present disclosure is not limited thereto.

Referring to FIG. 1, an embodiment of the present disclosure discloses an electronic cigarette cartridge with a fluid one-way valve structure, including a cartridge housing 100, a sealing silicone (seal) 200, a one-way valve structure 300, and a porous metal atomizer 400 , base 500 and electrode 600 . The silicone 200 is sealed between the pod shell 100 and the one-way valve structure 300. The porous metal atomizer 400 is arranged in the one-way valve structure 300. The one-way valve structure 300 is clamped on the bracket of the base 500. The two electrode leads on the atomizer 400 pass through the corresponding electrode ports of the base 500 and are fixed on the electrode rivet 600 .

The above-mentioned assembly body is put into the oil-filled pod case 100, and is closely matched with the inner wall of the pod case 100 through the base 500 and the sealing silicone 200, so that the entire pod is divided into the upper oil tank, the lower atomizing chamber and the inner wall of the pod. Straight-through airflow channel.

The internal structure of the one-way valve structure 300 is designed according to the shape of the atomizing core. The upper part of the one-way valve structure 300 has an oil hole and a vent hole, and the oil supply is controlled by the size of the oil hole.

As shown in FIG. 2 , the fluid one-way valve body structure 301 is a groove structure disposed on the outer wall of the upper section of the plastic kit, and is combined with the sealing silicone 200 to form a fluid one-way valve tube structure. In this embodiment, the one-way valve structure 301 is a Tesla valve structure. The Tesla valve is a fixed valve that utilizes a fixed space structure and can allow fluid to flow in one direction without mechanical movement. The principle of the Tesla valve is that when the fluid flows in the forward direction, the forward flow of the fluid is unimpeded and the total pressure loss is small; but when the fluid flows in the reverse direction, the fluid is repeatedly blocked and shunted and backflowed, hindering the forward flow of the fluid, and the total pressure The losses are extremely large, the fluid outlet pressure drops to near atmospheric pressure, the driving pressure almost disappears, and there is almost no flow.

The Tesla valve 301 is arranged on a sealing part (ie, the electronic cigarette sealing structure - the one-way valve structure 300 ) that blocks the oil tank and the atomization chamber; the oil tank end 302 of the Tesla valve 301 leads to the oil tank , the end 303 of the atomizing chamber is connected to the atomizing chamber. The direction from the atomization chamber to the oil tank is set as the Tesla valve forward structure. Use the characteristics of the Tesla valve to adjust the balance between the oil tank and the outside atmospheric pressure to ensure smooth oil supply and prevent e-liquid leakage. Specifically, when the e-liquid in the oil tank is consumed, the air pressure in the cabin decreases, and the gas will be quickly introduced into the oil tank through the Tesla valve, so that the air pressure in the oil tank is consistent with the external air pressure, and the oil supply is smooth. The direction from the oil tank to the atomizing chamber is reversed. As the external air pressure becomes lower, the oil tank air pressure is greater than the external air pressure, and the electronic cigarette liquid will be squeezed into the Tesla valve due to the pressure difference. After being consumed, the e-liquid will not flow to the atomizing chamber through the valve body, preventing oil leakage.

At the same time, an e-liquid collecting tank 304 is provided in the lower section of the one-way valve structure 300, and the e-liquid collecting tank 304 has the function of guiding, collecting and storing e-liquid. Under the extreme conditions of high-altitude negative pressure, the air pressure of the oil tank is higher than the external pressure, the capillary force of the atomizing core is not enough to lock the e-liquid, and some e-liquid will penetrate into the atomizing cavity through the atomizing core, and the e-liquid collecting tank This part of the e-liquid can be collected and stored to further prevent the e-liquid from leaking through the airflow channel.

The Tesla valve 301 has at least three repeating units, and this embodiment is three repeating units. As shown in FIG. 2 , the grooves of the Tesla valve 301 are 0.1-1 mm deep and 0.1-1 mm wide.

The material used for the one-way valve structure 300 may be plastic parts, silica gel, metal and other materials, but is not limited thereto. The Tesla valve is set on this valve body part, and then alone or with other parts to form the Tesla valve tube structure, which seals the oil tank and blocks the oil tank and the atomization cavity. In this way, the oil tank in the electronic pod supplies the electronic cigarette liquid to the atomizing core for atomization through the oil guide channel, and the air pressure balance is adjusted between the oil tank and the atomizing chamber through a one-way valve to ensure smooth oil supply and prevent oil leakage due to pressure difference. . The one-way valve structure 300 of the present disclosure may have a cylindrical shape, a flat cylindrical shape, or a rectangular parallelepiped shape, and is not limited thereto.

The porous metal atomizer 400 includes an atomizing core, which is a composite high-temperature firing atomizing core of porous metal fibers and porous ceramics. Porous metal fiber is used as an electrothermal atomizing element, which can both atomize and conduct oil, and improve the atomization efficiency. The microporous ceramic tube is used to fix the electrothermal atomizing element, and has the functions of storing oil, supplementing the oil guide, and dispersing part of the heat to atomize the e-liquid; recovering the e-liquid condensate in the airflow channel to prevent oil leakage.

To sum up, the electronic cigarette cartridge with a fluid one-way valve structure and its application of the present disclosure have at least one of the following advantages over the prior art:

(1) The electronic cigarette cartridge with the fluid one-way valve structure described in the present disclosure uses the Tesla valve to have different resistance to the fluid flow in the forward and reverse directions. By rationally designing the size of the Tesla valve body, it is possible to achieve non-conducting air flow. The oil guide can adjust the air pressure of the oil tank in real time along with the positive direction of the suction to ensure smooth oil supply; it can also use the reverse resistance to consume the pressure difference and solve the problem of improving the high-altitude negative pressure oil leakage of the electronic cigarette;

(2) The atomizing core to which the present disclosure belongs is a porous metal fiber felt and a porous ceramic composite fired at high temperature; the porous metal fiber felt generates heat and conducts oil, and has high atomization efficiency; the porous ceramic conducts oil, stores oil, and also recovers condensate, Reduce the risk of condensate leakage;

(3) The electronic pod to which the present disclosure belongs is simple in structure and convenient in assembly.

It should be noted that, although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, those skilled in the art should understand that the present disclosure is not limited to the above-mentioned embodiments, and any changes or modifications to the present disclosure may be made. Without departing from the spirit and scope of the present disclosure, if these changes and modifications fall within the claims and equivalent technical scope of the present disclosure, the present disclosure is also meant to include these changes and modifications.

In particular, various combinations and/or combinations of the features recited in the various embodiments of the present disclosure and/or the claims may be made without departing from the spirit and teachings of the present disclosure, even if such combinations or combinations are not expressly recited in in this disclosure. All such combinations and/or combinations are within the scope of this disclosure. Therefore, the scope of the present disclosure should be determined not only by the appended claims, but also by their equivalents.

Claims

An electronic pod with a fluid one-way valve structure, comprising:

pod shell;

The one-way valve structure is connected to the cartridge shell;

a porous metal atomizing element connected to the one-way valve structure; and

The base is connected with the porous metal atomizing element.
The electronic cigarette cartridge according to claim 1, wherein,

The one-way valve structure body is provided with a Tesla valve, and both ends of the Tesla valve are respectively connected with the oil tank and the atomization chamber of the electronic cigarette.
The electronic cigarette cartridge according to claim 2, wherein,

The Tesla valve is arranged on the outer surface of the sealing structure body of the electronic cigarette.
The electronic cigarette cartridge according to claim 2, wherein,

The repeating unit of the Tesla valve is not less than three.
The electronic cigarette cartridge according to claim 4, wherein,

The groove depth of the repeating unit of the Tesla valve is 0.1 to 1 mm.
The electronic cigarette cartridge according to claim 4, wherein,

The groove width of the repeating unit of the Tesla valve is 0.1 to 1 mm.
The electronic cigarette cartridge according to claim 1, wherein,

The one-way valve structure body is also provided with an e-liquid collecting tank;

The e-liquid collecting tank is communicated with the atomizing cavity.
The electronic cigarette cartridge according to claim 1, wherein,

The electronic cigarette cartridge further includes a sealing member, and the sealing member is arranged between the cartridge casing and the one-way valve structure body.
The electronic cigarette cartridge according to claim 8, wherein,

The material used for the seal is silica gel.
The electronic cigarette cartridge according to claim 1, wherein,

The electronic pod also includes an electrode fixing member, which is arranged on the base of the pod and is connected to the porous metal atomizing element.
The electronic cigarette cartridge according to claim 10, wherein,

The electrode fixing member includes electrode rivets.
Application of the electronic cigarette cartridge according to any one of claims 1 to 11 in the field of electronic cigarettes.