WO2023179258A1

WO2023179258A1 - Atomization core provided with liquid-guiding central through-hole

Info

Publication number: WO2023179258A1
Application number: PCT/CN2023/076502
Authority: WO
Inventors: 林光榕; 郑贤彬
Original assignee: 惠州市新泓威科技有限公司
Priority date: 2022-03-21
Filing date: 2023-02-16
Publication date: 2023-09-28
Also published as: CN217364691U

Abstract

An atomization core provided with a liquid-guiding central through-hole, comprising a porous body (1) through which an atomization liquid can penetrate; the interior of the porous body (1) is provided with a central through-hole (10), and at least one surface of the porous body (1) is an atomization surface (11); the atomization surface (11) is coated with a heating layer (2), the two distal ends of the heating layer (2) are each connected to an electrode disc (3), and the heating layer (2) is provided with atomization through-holes (20); the atomization liquid can enter the porous body (1) by means of two ends of the central through-hole (10) and penetrate into the atomization surface (11), and the atomization liquid on the atomization surface (11) evaporates into vapor and is emitted from the atomization through-holes (20) when the heating layer (2) is electrified and heated. The benefits of the described atomization core lie in liquid guiding being rapid and complete, a sufficient amount of atomization being guaranteed, the structure being simple, and the atomization core being conveniently assembled into an atomizer, facilitating automatic manufacturing.

Description

Atomizer core with central through hole for liquid conduction

Technical field

The present invention relates to the technical field of electronic atomization equipment. More specifically, the present invention relates to an atomization core with a central through hole for liquid conduction.

Background technique

Existing electronic atomization equipment specifically includes electronic cigarettes, medical liquid atomization equipment, etc. Its basic task is to provide a heating process to convert the smoke liquid, liquid medicine and other solutions stored in the electronic atomization equipment into aerosol, Smoke, aerosol, vapor, etc.

Electronic atomization equipment generally includes a battery assembly and an atomizer. A battery is installed in the battery assembly. The battery supplies power to the atomizer. The atomizer includes an atomizing core installed on the atomizing seat. When the atomizing core is powered on, The solution to be atomized, that is, the atomizing liquid, can be heated and atomized into aerosol or aerosol.

The existing atomizer cores on the market have porous liquid-conducting materials. The atomized liquid generally flows from the liquid storage chamber to the upper surface of the porous body, and then penetrates from the upper surface to the lower surface for atomization, which needs to penetrate through the entire porous body. , the liquid conduction effect is poor, which can easily lead to insufficient atomization volume. In addition, general atomizers, including atomizer shell, atomization cover, atomization core, atomization seat, base, connecting electrode, etc., have many accessories and complex structure, and the atomization core requires welding of electrode leads, and the atomization core When installed into the atomizer, it includes the need to connect electrode leads, which is a complex process and difficult to achieve automated production.

technical problem

The object of the present invention is to provide an atomizing core with a central through hole for liquid conduction to overcome the shortcomings of the above technology.

Technical solutions

The technical solution of the present invention is achieved as follows: an atomization core with a central through hole for liquid conduction, including a porous body that is permeable to the atomization liquid. The interior of the porous body is provided with a central through hole, and at least one of the porous bodies has One side is set as an atomization surface. A heating layer is laid on the atomizing surface. The two far ends of the heating layer are respectively connected with electrode plates. The heating layer is provided with an atomization through hole through which the atomized liquid can pass. Both ends of the central through hole enter the porous body and penetrate into the atomization surface. When the heating layer is energized and heated, the atomization liquid on the atomization surface evaporates into aerosol and is emitted from the atomization through hole. .

Preferably, the porous body is composed of a porous ceramic body, a microporous glass body, or a microporous metal body.

Preferably, the outer surface of the porous body except the atomization surface is provided with a coating layer.

Preferably, the coating layer is composed of a dense ceramic layer, a metal oxide coating layer, a plastic layer, or a silica gel layer.

Preferably, the atomization surface is provided on the bottom surface and two opposite sides of the porous body.

Preferably, the atomization surface is an arc-shaped curved surface.

Preferably, the heating layer is composed of a porous metal sheet or a metal coating.

Preferably, the metal plating film includes a transition film and a heating film, the atomization through holes are micro through holes, and both the transition film and the heating film are provided with micro through holes.

Preferably, a protective film is also provided on the outside of the metal plating film, and the protective film is provided with micro-through holes.

Preferably, the electrode plate is composed of a metal sheet, a metal coating, or a metal printing layer.

beneficial effects

The atomizing core with a central through hole for liquid conduction in the present invention is used in atomizing equipment. During installation, the atomizing core is installed in the casing of the atomizer of the atomizing equipment. The atomizer includes a liquid storage chamber and an atomizing chamber. The atomizing core is placed transversely in the atomizing chamber. The two ends of the central through hole of the atomizing core are directly connected to the liquid storage chamber. The atomized liquid in the liquid storage chamber can flow smoothly into the central through hole. The atomized liquid can penetrate and diffuse around the porous body, so that the liquid supply can be quickly and fully ensured a sufficient amount of atomization. In addition, the atomizing core of the present invention has a simple structure. The electrode plate can be elastically connected to the spring electrode without welding wires, and can be easily assembled into the atomizer, which is helpful to realize the automated production of the atomizer.

Description of the drawings

Figure 1 is an exploded view of the three-dimensional structure of the atomizing core according to Embodiment 1 of the present invention;

Figure 2 is an exploded view of the three-dimensional structure of the metal coating layer in Embodiment 1 of the present invention;

Figure 3 is an exploded view of the three-dimensional structure of the atomizing core in Embodiment 2 of the present invention;

Figure 4 is an exploded view of the three-dimensional structure of the atomizing core in Embodiment 3 of the present invention;

Figure 5 is an exploded view of the three-dimensional structure of the atomizing core in Embodiment 4 of the present invention.

Embodiments of the invention

The present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

Example 1

As shown in Figure 1, the atomization core with a central through hole for liquid conduction according to the embodiment of the present invention is installed in the atomizer of the electronic atomization equipment and includes a porous body 1 that is permeable to the atomization liquid. The interior of the porous body is provided with The central through hole 10, one side of the porous body 1 is set as the atomization surface 11, the atomization surface 11 is provided with a heating layer 2, the two far ends of the heating layer 2 are connected with electrode disks 3, and the electrode disks 3 are separately connected Electrode leads or contact electrodes (not shown). The atomized liquid can enter the porous body 1 through both ends of the central through hole 10 and penetrate into the atomized surface 11. The heating layer 2 is provided with an atomized through hole 20. The atomized through hole 20 facilitates the passage of the atomized liquid or aerosol. When the heating layer 2 is energized and generates heat, the atomized liquid on the atomizing surface 11 evaporates into mist and is emitted from the atomizing through hole 20 .

Among them, the porous body 1 is a porous ceramic body, and the heating layer 2 is a metal coating 2. The metal coating is composed of a metal nano-coating. The atomization through holes on the metal coating are many uniformly distributed and micron-level micro through holes 20. The micro through holes 20 can cause the atomized liquid in the porous body 1 to seep out from the metal coating and become atomized. The electrode disk 3 is composed of a metallic silver printed layer. Metal silver has good electrical conductivity and good contact effect, is not easy to decompose, and has good stability.

As shown in FIG. 2 , the metal plating film 2 of this embodiment includes a transition film 21 and a heating film 22 , and a protective film 23 is also provided on the outside of the metal plating film 2 . The transition film 21, the heating film 22, and the protective film 23 are connected to each other. The transition film 21, the heating film 22, and the protective film 23 are all provided with micro-through holes to facilitate the atomization liquid to seep out and atomize. The transition film 21 is made of titanium metal and is not mainly used for heat generation. The heating film 22 is made of platinum metal and is mainly used for heat generation. The heating film 22 is made of platinum metal because it is considered that platinum Pt not only has a low resistivity, but more importantly, is chemically inert, which can effectively prevent the mutual diffusion between the film and the ceramic substrate at high operating temperatures, resulting in an increase in resistance. High impact atomizer core working consistency. The titanium layer of the transition film 21 can not only enhance the adhesion between the metal platinum Pt and the substrate, but also prevent the metal platinum from reacting with the silicon material in the ceramic matrix to form silicide under the high temperature of the atomizer operation.

Since the heating area of the metal coating is large, and the aerosol can be released from the micro-through holes without hindrance, the atomization amount of the atomized liquid is greatly improved; the entire surface of the metal coating is heated, and is heated evenly, making it less likely to produce accumulation. The phenomenon of carbon and liquid leakage; there is no uneven thermal stress under high temperature operation, and the metal coating has no risk of circuit breakage, which improves the consistency of product use and brings a good user experience to users.

In this embodiment, the protective film 23 is made of silicon nitride material. The protective film 23 is used to protect the heating film 22, prevent the heating film from being oxidized and corroded, and also has an insulating effect.

Example 2

As shown in FIG. 3 , on the basis of Embodiment 1, the porous body 1 in this embodiment is also provided with a coating layer 4 on the outer surface except the atomization surface 11 . Since the atomization channel generates negative pressure when the atomization equipment is working, the atomization liquid easily leaks out from the non-atomization surface of the porous body 1, and the unatomized liquid droplets are easily sucked into the user's mouth, causing a bad user experience. The coating layer 4 is made of a dense, impermeable material and covers the non-atomized surface of the porous body 1, which can prevent the atomized liquid from leaking from the porous body 1, thereby improving the above shortcomings. In this embodiment, the coating layer 4 is composed of a dense ceramic layer, and the porous body 1 is composed of a porous ceramic body. The two can be made of different ceramic base materials by being integrally molded and then sintered.

In other embodiments, the coating layer 4 may also be composed of a metal oxide coating layer, a plastic layer, or a silicone layer.

Example 3

As shown in Figure 4, on the basis of Embodiment 1, this embodiment arranges the atomization surface 11 on the bottom surface of the porous body 1 and the two opposite sides, that is, all three surfaces of the porous body 1 can generate heat and atomize. It can increase the atomization area and increase the atomization amount.

Example 4

As shown in Figure 5, based on Embodiment 1, this embodiment sets the atomization surface 11 as an arc-shaped curved surface, the heating film 2 is attached to the atomization surface 11 in the form of a curved surface coating, and the electrode plate 3 Made in the form of a printed layer of metallic silver. The atomization surface 11 is set as an arc-shaped surface, which increases the atomization area in the same space, thus increasing the atomization amount, allowing the user to have a better atomization smoking experience.

In other embodiments, the porous body 1 can also be made of microporous glass or microporous metal, the heating layer 2 can also be made of porous metal sheets, and the electrode plate 3 can also be made of metal sheets or metal coatings. The transition film 21 may also be made of tantalum, niobium, titanium nitride, tantalum nitride, niobium nitride, etc. The heating film 22 may also be made of platinum, silver, palladium, nickel, chromium, silver-palladium alloy, nickel Chrome alloy, etc. The protective film 23 may also be made of aluminum boron nitride, titanium nitride, tantalum nitride, etc., and the thickness of the protective film is 50nm-1um.

In other embodiments, a porous insulating layer can be provided between the atomizing surface and the heating film to prevent leakage of electricity from the heating film, so that the electric energy can be concentrated and the heating and atomization effects can be better.

In other embodiments, a liquid storage medium, such as organic cotton, glass fiber material, sponge, diatomaceous earth, etc., can also be provided in the central through hole. The liquid storage medium can allow the atomization liquid to be carried out in the central through hole. Cache to prevent excessive or insufficient liquid supply, and also avoid accumulation of air bubbles in the central through hole causing poor liquid supply.

In other embodiments, the atomization surfaces can also be provided on two opposite sides of the porous body, that is, both sides of the porous body can be heated and atomized, which can also increase the atomization area and increase the atomization amount.

The atomizing core with a central through hole for liquid conduction in the above embodiment of the present invention is used in atomizing equipment. During installation, the atomizing core is installed in the housing of the atomizer of the atomizing equipment. The atomizing device includes a liquid storage chamber and an atomizer. The atomizing core is placed transversely in the atomizing chamber. The two ends of the central through hole of the atomizing core are directly connected to the liquid storage chamber. The atomized liquid in the liquid storage chamber can flow smoothly into the central through hole. The atomized liquid in the through hole can penetrate and diffuse around the porous body, so that the liquid supply is rapid and sufficient, ensuring a sufficient amount of atomization.

In addition, the atomizing core of the present invention has a simple structure. The electrode plate does not require welding wires and is elastically connected to the spring electrode. It can be easily assembled into the atomizer, which is helpful to realize the automated production of the atomizer.

Industrial applicability

The above are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

An atomizing core with a central through hole for liquid conduction, characterized by comprising a porous body permeable to atomizing liquid, a central through hole is provided inside the porous body, and at least one side of the porous body is set as the atomizing surface , a heating layer is laid on the atomization surface, and the two far ends of the heating layer are connected with electrode plates respectively. The heating layer is provided with an atomization through hole, and the atomized liquid can pass through the central through hole. Both ends enter the porous body and penetrate into the atomization surface. When the heating layer is energized and heated, the atomization liquid on the atomization surface evaporates into aerosol and is emitted from the atomization through hole.
The atomization core with a central through hole for liquid conduction according to claim 1, characterized in that the porous body is composed of a porous ceramic body, a microporous glass body, or a microporous metal body.
The atomizing core with a central through hole for liquid conduction according to claim 1, wherein the outer surface of the porous body except the atomizing surface is provided with a coating layer.
The atomization core with a central through hole for liquid conduction according to claim 3, wherein the coating layer is composed of a dense ceramic layer, a metal oxide coating layer, a plastic layer, or a silica gel layer.
The atomizing core with a central through hole for liquid conduction according to claim 1, wherein the atomizing surface is provided on the bottom surface of the porous body and two opposite side surfaces.
The atomizing core with a central through hole for liquid conduction according to claim 1, wherein the atomizing surface is an arc-shaped curved surface.
The atomization core with a central through hole for liquid conduction according to claim 1, wherein the heating layer is composed of a porous metal sheet or a metal plated film.
The atomization core with a central through hole for liquid conduction according to claim 7, wherein the metal coating includes a transition film and a heating film, the atomization through hole is a micro through hole, and the transition film and the heating film All are equipped with micro-through holes.
The atomization core with a central through hole for liquid conduction according to claim 7, characterized in that a protective film is also provided on the outside of the metal plating film, and the protective film is provided with micro through holes.
The atomization core with a central through hole for liquid conduction according to claim 1, wherein the electrode plate is composed of a metal sheet, a metal coating, or a metal printing layer.