WO2022033376A1

WO2022033376A1 - Atomization core, electronic atomization assembly, and electronic atomization device

Info

Publication number: WO2022033376A1
Application number: PCT/CN2021/110627
Authority: WO
Inventors: 吕铭; 石志强; 蒋玥
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2020-08-10
Filing date: 2021-08-04
Publication date: 2022-02-17
Also published as: CN114073332A; US20230180840A1

Abstract

Disclosed in the present invention is an atomization core, for use in heating and atomizing an aerosol generating matrix. The atomization core comprises a first substrate and a first heating member. The first substrate comprises a first surface and a second surface facing away from the first surface; a first microchannel array is provided on the first surface; the first microchannel array comprises multiple first microchannels; the first microchannels are used for flow guiding of the aerosol generating matrix; the first substrate is made of a dense material. The first heating member is provided on the second surface and is used for heating the first substrate to atomize the aerosol generating matrix in the first microchannels. According to the atomization core, the electronic atomization assembly, and the electronic atomization device in the present invention, the substrate is made of a dense material, and the heating member and a liquid to be atomized are respectively located at two different side portions of the atomization core and do not contact each other at all; during use, e-liquid deterioration caused by long-term storage would not occur, and no heavy metal elements will appear during atomization, thus achieving higher safety.

Description

Atomizing core, electronic atomizing component and electronic atomizing device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority based on Chinese patent application 202010795986.1 filed on August 10, 2020, the entire contents of which are incorporated herein by reference.

【Technical field】

The invention relates to the technical field of atomization tools, in particular to an atomization core, an electronic atomization component and an electronic atomization device.

【Background technique】

As an alternative to cigarettes, electronic atomization devices are mostly used for smoking cessation. The smoke produced by electronic atomization devices has a similar appearance and taste to cigarettes, but generally does not contain other harmful components such as tar and aerosols in cigarettes.

The electronic atomization device is mainly composed of electronic atomization components and power supply components. The electronic atomization assembly contains an atomizing core. The atomizing core is the core device for the electronic atomization device to generate atomized gas, and its atomization effect determines the quality and taste of the smoke. Most of the early electronic atomization devices used a structure in which a metal heating wire is wound around a fiber rope as an atomizer, which is collectively referred to as a cotton core atomizer. The atomizer of this structure requires the e-liquid to completely infiltrate the heat source, but the e-liquid will inevitably decrease with the increase of use time, and the phenomenon of dry burning, carbon deposition and burnt smell will gradually appear during use. In addition, the structure of the atomizing core determines that the heating temperature is not uniform. The temperature in the area next to the metal heating wire is very high. The e-liquid here will undergo a cracking chemical reaction due to the high temperature, producing aldehydes and ketones that are harmful to the human body.

In view of the disadvantages of the heating wire wound fiber rope atomizer, ceramic atomizer products have appeared. The atomizer is composed of two parts, a porous ceramic and a metal heating film: the ceramic is formed by sintering at high temperature, and many tiny pores are formed inside, and the average pore size is equivalent to one-fifth of the hair, similar to the honeycomb structure. Combining the metal heating film with the ceramic substrate with micropores all over it forms a ceramic atomizing component. Using surface tension and capillary action, the e-liquid can penetrate into the atomizer uniformly and transfer to the surface of the atomizer. During the working process, the heating film generates heat after being energized, and instantly heats the liquid stored in the porous ceramic substrate to form an aerosol.

The structure of the ceramic atomizing core determines that the e-liquid must pass through the tortuous flow channels in the ceramic substrate before it can be transferred from the e-liquid tank to the metal heating film. However, the flow channel structure in the porous ceramic obtained by high temperature sintering is difficult to precisely control, and the pores If the throat diameter is too small, it will prevent the e-liquid from passing through, and if the diameter is too large, the atomizer will leak oil. Secondly, the structure of porous ceramics is similar to molecular sieves, which can adsorb and filter the e-liquid containing various components of flavors and fragrances, which affects the mass transfer process of e-liquid. The efficiency is low, which ultimately reduces the experience of using the appliance. Finally, porous ceramics are less structurally stable, with significantly lower structural strength than dense substrates, and less reliable in the thermal cycling environment required by atomizers.

In addition, whether it is a cotton wick atomizer or a ceramic atomizer, the metal wire or metal film as the heat source will be in direct contact with the e-liquid. The chemical stability of metal materials is poor, and there are potential safety hazards in the long-term contact of e-liquid with metal, especially when heated at high temperature.

[Content of the invention]

The technical problem mainly solved by the present invention is: to provide an atomizing core, an electronic atomizing assembly and an electronic atomizing device, which solves the uneven heating of the current cotton core atomizer and ceramic atomizer, resulting in harmful production of e-liquid The gas, and the e-liquid flow channel on the ceramic substrate are difficult to control and have poor reliability.

In order to solve the above-mentioned technical problems, a technical solution adopted in the present invention is to provide an atomizing core for heating the atomized aerosol to generate a matrix, and the atomizing core comprises:

A first substrate includes a first surface and a second surface opposite to the first surface, wherein a first microgroove array is provided on the first surface, and the first microgroove array includes a plurality of first a micro-groove, the first micro-groove is used to guide the aerosol-generating substrate, and the material of the first substrate is a dense material;

A first heating element, disposed on the second surface, is used for heating the first substrate to atomize the aerosol-generating matrix in the first microgroove.

Wherein, the width of the first micro groove is less than 0.3mm, and the depth is less than 0.3mm.

Wherein, the cross section of the first micro groove is V-shaped.

Wherein, the first micro groove is a blind groove.

Wherein, when the first heating element heats the first substrate, a temperature field is generated, and the first microgrooves with different densities are arranged corresponding to different temperature regions.

Wherein, the atomizing core further includes:

The second substrate includes a third surface and a fourth surface opposite to the third surface, wherein the third surface is provided with a second micro-groove array, and the second micro-groove array includes a plurality of second micro-grooves groove;

Wherein, the first substrate and the second substrate are stacked and disposed, and the second surface and the fourth surface are attached, so that the first heating element is disposed on the first substrate and the first substrate. between the two substrates.

Wherein, the atomizing core further includes:

The second substrate includes a third surface and a fourth surface opposite to the third surface, wherein the third surface is provided with a second micro-groove array, and the second micro-groove array includes a plurality of second micro-grooves ;

Wherein, the first substrate and the second substrate are stacked and disposed, and the first surface is attached to the third surface, so that the first heating element is disposed on the first substrate away from the first heating element. two sides of the substrate.

Wherein, the atomizing core further includes:

a second heating element attached to the fourth surface for heating the second substrate;

Wherein, the first heating element and the second heating element are controlled and operated by different driving mechanisms, and the plurality of first micro-grooves and the plurality of second micro-grooves are not communicated with each other.

Wherein, the plurality of first capillary channels are arranged in parallel and spaced apart, the plurality of second micro-grooves are arranged in parallel and spaced apart, and the plurality of first micro-grooves and the plurality of second micro-grooves are in cross-connection with each other.

Wherein, the first surface is divided into a first area and a second area adjacent to the first area, the plurality of first microgrooves extend from the first area to the second area, the The second surface includes a third area corresponding to the first area, and the first heating element is only disposed and covered on the third area.

In order to solve the technical problem, the present application also provides an electronic atomization assembly, the electronic atomization assembly includes a liquid storage chamber and the atomizing core according to any one of the above.

Wherein, the plurality of first microgrooves are arranged in parallel and spaced apart; the liquid storage chamber includes a first liquid storage chamber and a second liquid storage chamber which are arranged at both ends of the plurality of first microgrooves at intervals, and the first liquid storage chamber The aerosol-generating matrix in the liquid storage chamber and the second liquid storage chamber diffuses from both ends of the plurality of first micro grooves to the middle; the first heating element is arranged on the second surface and the plurality of The position corresponding to the middle of the first micro groove.

Wherein, the plurality of first micro-grooves diffuse and extend from the center to the periphery; the liquid storage cavity is disposed corresponding to the center, and the aerosol-generating matrix in the liquid-storage cavity extends along the plurality of first micro-grooves from The center spreads to the periphery; the first heating element is arranged on the second surface and is arranged around the liquid storage cavity.

In order to solve the technical problem, the present application also provides an electronic atomization device, the electronic atomization device includes a power supply assembly and the electronic atomization assembly as described above.

Compared with the prior art, the beneficial effects of the atomizing core, the electronic atomizing assembly and the electronic atomizing device of the present invention are as follows: the substrate is made of dense material, and the heating element and the liquid to be atomized are located in two different parts of the atomizing core, respectively. The side part of the pod is not in contact at all, so there will be no deterioration of e-liquid due to long-term storage during use, no heavy metal elements will appear during the atomization process, and the safety is higher.

【Description of drawings】

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the front structure schematic diagram of atomizing core of the present invention;

Fig. 2 is the structural representation of the first embodiment of the atomizing core of the present invention;

Fig. 3 is the rear view of Fig. 1;

4 is a schematic diagram of a first capillary channel whose ends are not flush with the first substrate;

5 is a schematic structural diagram of another embodiment of the first heating element;

Fig. 6 is the structural representation of the first capillary channel;

Fig. 7 is the structural representation of the second embodiment of the atomizing core of the present invention;

8 is a schematic structural diagram of Embodiment 3 of the atomizing core of the present invention;

9 is a schematic structural diagram of Embodiment 4 of the atomizing core of the present invention;

10 is a schematic structural diagram of Embodiment 5 of the atomizing core of the present invention;

11 is a schematic structural diagram of another embodiment of the first capillary channel;

12 is a schematic diagram of a first side surface of another first substrate;

13 is a schematic diagram of another second side surface of the first substrate;

Figure 14 is a side view of the atomizing core;

15 is a schematic front view of the structure of the first embodiment of the electronic atomization assembly of the present invention;

16 is a schematic structural diagram of another embodiment of the electronic atomization assembly of the present invention;

FIG. 17 is a schematic structural diagram of the electronic atomization device of the present invention.

【detailed description】

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship between various components under a certain posture (as shown in the accompanying drawings). , motion situation, etc., if the specific posture changes, the directional indication also changes accordingly. The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

Please refer to Fig. 1 to Fig. 3, Fig. 1 is a schematic view of the front structure of the atomizing core of the present invention, Fig. 2 is a schematic view of the structure of the first embodiment of the atomizing core of the present invention, Fig. 3 is a back view of Fig. The substrate for generating aerosol by heating and atomizing includes: a first substrate 1, including a first surface 10 and a second surface 20 opposite to the first surface 10, wherein the first surface 10 is provided with a first microgroove array 11 , the first micro-groove array 11 includes a plurality of first micro-grooves 12, the first micro-grooves 12 are used to conduct the flow of the aerosol-generating substrate 100 (see FIG. 10 ), and the material of the first substrate 1 is a dense material; The heating element 2 is disposed on the second surface 20 for heating the first substrate 1 so that the aerosol-generating substrate 100 is atomized by the first micro-grooves 12 . The first substrate 1 is used as the substrate of the atomization component. A first microgroove array 11 is arranged on the first surface 10 of the first substrate 1 to guide the aerosol generation substrate 100. The second surface 20 of the back is provided with a first heating element 2, which makes the first substrate 1 generate heat during use, and the heat energy is quickly transferred to the aerosol-generating matrix 100 in the first micro-groove array 11 through the first substrate 1, so that the aerosol is generated. The sol-generating substrate 100 is atomized. The aerosol-generating substrate 100 may be e-liquid, health and medical atomization agent or chemical agent, etc. In this application, the aerosol-generating substrate 100 is e-liquid as an example for specific description.

The first micro-groove array 11 in the present application includes a plurality of first micro-grooves 12 , and the first micro-grooves 12 are capillary channels, which utilize capillary action under the combined action of the surface tension, cohesion and adhesion of the aerosol-generating substrate 100 , so that the aerosol-generating substrate 100 can diffuse along the first microgrooves 12 in the smaller diameter first microgrooves 12 . When the first substrate 1 is placed vertically, the aerosol-generating substrate 100 can also spread from the bottom to the top along the first micro-grooves 12 and rise to a certain height, so that the aerosol-generating substrates in the first micro-grooves 12 can be generated. 100 for atomization.

In order to prevent the aerosol-generating matrix 100 from permeating to the opposite side through the first substrate 1, the material of the first substrate 1 in the present application is made of a dense material. Preferably, the material of the first substrate 1 is a dense insulating material or a semiconductor material. Specifically, when it is an insulating material, the material of the first substrate 1 can be selected from glass, quartz, zirconia, alumina, silicon carbide or nitrogen Aluminum. When it is a semiconductor material, the material of the first substrate 1 can be selected from silicon or gallium arsenide. The above-mentioned first substrate 1 is made of dense materials with high strength, and the aerosol-generating matrix 100 cannot penetrate through the first substrate 1 to the side where the first heating element 2 is arranged, and will not cause the porous ceramic substrate to heat up. Safety issues that may drop powder during the cycle. When the atomizing core of the above materials is used to atomize the e-liquid, there is no adsorption and filtration of various solutes such as essence, fragrance, nicotine and so on in the e-liquid, which can restore the aroma of e-liquid to the greatest extent, and improve the taste and nicotine. transmission efficiency.

In this embodiment, the first heating element 2 is a thin-film sheet-like structure, which is closely attached to the first substrate 1, and a metal heating film with a uniform shape is prepared on the sheet structure. more uniform temperature field. At the same time, the plurality of first micro-grooves 12 of the atomizing core are evenly distributed on the first substrate 1 to ensure that each first micro-groove 12 is uniformly heated during use. Limited by the structure and material of the heater, the heat source is a linear metal wire or metal film, which cannot achieve a uniform temperature field. In order to obtain a sufficient amount of smoke, the temperature in the high temperature area is often far beyond the boiling point of the smoke oil. The above setting can avoid the cracking chemical reaction of the e-liquid due to the uneven heating temperature of the atomizer, and the generation of aldehyde and ketone gases that are harmful to the human body.

In this embodiment, the plurality of first micro-grooves 12 are arranged in parallel and spaced apart, and extend from one end of the first substrate 1 to the opposite end. Of course, both ends of the first micro-grooves 12 may not be flush with the ends of the first substrate 1 , as shown in FIG. 4 . The width of the plurality of first micro-grooves 12 is less than 0.3 mm and the depth is less than 0.3 mm, so that the first micro-grooves 12 can realize capillary action.

The shape of the first heating element 2 in the present application is shown in FIG. 3 or FIG. 5 . As shown in FIG. 3 , the first heating element 2 can be concentrated in the middle of the upper half of the first substrate 1 , as shown in FIG. 5 , which is a schematic structural diagram of another embodiment of the first heating element. 2 can be concentrated in the middle of the upper half of the first substrate 1 or cover the entire upper half of the first substrate 1, the difference is that the first heating element 2 in FIG. The continuous heating of the film achieves a uniform temperature field, so that the aerosol-generating substrate 100 is uniformly heated.

In this embodiment, the cross-sectional shape of the first micro-grooves 12 is arc shape, V shape or rectangle. The function of the first micro-groove 12 is not only to transmit the aerosol-generating matrix 100 to the atomizing end of the first substrate 1, but also to perform a storage function. in slot 12. When the atomizing core works, the aerosol-generating substrate 100 stored in the first micro-groove 12 is firstly atomized, and the size of the first micro-groove 12 is positively related to the storage capacity of the aerosol-generating substrate 100 and the atomization amount.

Please refer to Fig. 6, Fig. 6 is the structural representation of the first capillary channel, the cross section of the first micro-groove 12 is V-shaped, and the first micro-groove 12 is a blind groove. The storage volume V0 of the aerosol-generating matrix 100 in a single first micro-groove 12 is determined by the geometric size of the micro-grooves and the number n of the first micro-grooves 12. In this embodiment, the shape of the first micro-grooves 12 is V-shaped as For example, the length of the first substrate 1 is L, the length of the first micro groove 12 is l, the depth is h, and the width is w. During the atomization process, the e-liquid stored in the first micro-slot 12 is preferentially vaporized, and at the same time, the aerosol-generating substrate 100 is continuously supplied from the storage bin to the heating end through the first micro-slot 12 . The flow of the aerosol-generating matrix 100 in the first microchannel 12 can be calculated according to the Washburn equation, z is the distance traveled by the aerosol-generating matrix 100, γ is the surface tension, μ is the viscosity of the aerosol-generating matrix 100, and r is the capillary channel The radius, θ is the contact angle of the aerosol-generating matrix 100 to the material of the first substrate 1 , and t is the time.

The flow rate of a single first micro-groove 12 in unit atomization time is:

The total atomized volume of the aerosol-generating substrate 100 is:

V=n·h·w·z(t)

When the materials of the aerosol-generating substrate 100 and the first substrate 1 are determined, γ, μ, and θ remain unchanged, and the atomization amount of the aerosol-generating substrate 100 is only related to the geometry of the first micro-grooves 12 and the atomization time. By controlling the size of the first microgrooves 12, the total atomization amount can be precisely controlled.

The first substrate 1 is made of dense material and is formed by photolithography etching, laser etching, nano-imprinting or plasma etching, and the size and shape of the first micro-grooves 12 can be precisely controlled, so that a plurality of first micro-grooves 12 The size and shape of the atomizer are highly consistent, so as to accurately control the total atomization amount when the atomizer is working, which is convenient for large-scale manufacturing and achieves ultra-high consistency and stability of product performance.

In this embodiment, the first heating element 2 generates a temperature field when heating the first substrate 1, and the first micro-grooves 12 with different densities are arranged corresponding to different temperature regions. It can be understood that when the density of the first micro-grooves 12 is relatively When the temperature is large, the temperature in the temperature field is relatively high, and when the density of the first microgrooves 12 is small, the temperature in the temperature field is relatively low. Different aerosol-generating substrates have different atomization temperatures, and for different aerosol-generating substrates and different atomization amount requirements, the density of the first microgroove 12 can be changed to meet different usage requirements.

The first substrate 1 of the above-mentioned atomizing core is made of dense material, so that the first heating element 2 and the aerosol generating substrate 100 are located on two different sides of the atomizing core respectively, and the two are not in contact at all. There will be no deterioration of e-liquid due to long-term storage, no heavy metal elements will appear during the atomization process, and the safety is higher.

Embodiment 2:

Please refer to FIG. 7 . FIG. 7 is a schematic structural diagram of Embodiment 2 of the atomizing core of the present invention. In addition to the first substrate 1 , the atomizing core in this embodiment further includes a second substrate 3 . The second substrate 3 including a third surface 30 and a fourth surface 40 opposite to the third surface 30, wherein the third surface 30 is provided with a second microgroove array 31, and the second microgroove array 31 includes a plurality of second microgrooves 32; wherein , the first substrate 1 and the second substrate 3 are stacked and disposed, and the second surface 20 and the fourth surface 40 are attached, so that the first heating element 2 is disposed between the first substrate 1 and the second substrate 3 . The shapes and settings of the second substrate 3 , the second micro-groove array 31 and the second micro-groove 32 in this embodiment are the same as those of the first substrate 1 , the first micro-groove array 11 and the first micro-groove 12 respectively. The heating element 2 is fixed between the first substrate 1 and the second substrate 3, and both the first substrate 1 and the second substrate 3 are heated by the first heating element 2, so that the amount of smoke generated by the atomizing core is more, and the atomization higher efficiency.

In this embodiment, the material of the second substrate 3 is the same as that of the first substrate 1 .

In this embodiment, the cross-sectional shape and length of the second micro-grooves 32 are the same as those of the first micro-grooves 12 , and the extending directions of the second micro-grooves 32 and the first micro-grooves 12 are the same.

Embodiment three:

Please refer to FIG. 8 , which is a schematic structural diagram of Embodiment 3 of the atomizing core of the present invention. In addition to the first substrate 1 , the atomizing core in this embodiment further includes a second substrate 3 . The second substrate 3 includes a third surface 30 and a fourth surface 40 opposite to the third surface 30 . The three surfaces 30 are provided with a second micro-groove array 31 , and the second micro-groove array 31 includes a plurality of second micro-grooves 32 ; wherein the first substrate 1 and the second substrate 3 are stacked, and the first surface 10 and the third surface 30 By bonding, the first heating element 2 is disposed on the side of the first substrate 1 away from the second substrate 3 .

The difference between this embodiment and the second embodiment is that the first heating element 2 is disposed on the outside of the first substrate 1 and the second substrate 3, so that the first micro-groove array 11 and the second micro-groove array 31 are located on the outer side of the atomizing core. In the middle, the first heating element 2 still heats the first microgroove array 11 and the second microgroove array 31 simultaneously.

Embodiment 4:

As shown in FIG. 9 , FIG. 9 is a schematic structural diagram of the fourth embodiment of the atomizing core of the present invention. In addition to the second substrate 3 , the atomizing core in this embodiment may further include a second heating element 4 . The two heating elements 4 are attached to the fourth surface 40 for heating the second substrate 3 .

The difference between this embodiment and the third embodiment is that the second heating element 4 is arranged on the second substrate 3, so that a heating element is provided on the outer sides of the first substrate 1 and the second substrate 3, and the first heating element 2 and The second heating element 4 heats the first microgroove array 11 and the second microgroove array 31 respectively. The first micro-groove array 11 and the second micro-groove array 31 are still located in the middle of the atomizing core.

The first heating element 2 and the second heating element 4 may be controlled to operate by one or different drive mechanisms.

Embodiment 5:

As shown in FIG. 10 , which is a schematic structural diagram of the fifth embodiment of the atomizing core of the present invention, the difference between this embodiment and the fourth embodiment is that the first heating element 2 and the second heating element 4 are driven by different The mechanism controls the operation, and the plurality of first microgrooves 12 and the plurality of second microgrooves 32 are not communicated with each other. Specifically, the plurality of first micro-grooves 12 are arranged in parallel and spaced apart, the plurality of second micro-grooves 32 are also arranged in parallel and spaced apart, and the plurality of first micro-grooves 12 and the plurality of second micro-grooves 32 are arranged parallel to each other and offset, so that the The plurality of first microgrooves 12 and the plurality of second microgrooves 32 are not communicated with each other. In the specific use process, the first heating element 2 or the second heating element 4 can be controlled to be used alone or to work simultaneously according to the demand for the amount of smoke of different atomizer products. At the same time, the user can adjust the amount of smoke according to the needs of use.

The shape of the first micro-grooves 12 in the present application can also have various forms, one of which is as shown in FIG. Arranged on the first substrate 1, the directions of the plurality of liquid flow channels are the same. Another form is shown in FIG. 8 , and FIG. 11 is a schematic structural diagram of another embodiment of the first capillary channel, where a plurality of first microgrooves 12 and a plurality of second microgrooves 32 are provided, and a plurality of first microgrooves 12 are provided. Arranged in parallel and at intervals, a plurality of second microgrooves 32 are arranged in parallel and at intervals, a plurality of first microgrooves 12 and a plurality of second microgrooves 32 are perpendicular to each other and cross-connected, a plurality of first microgrooves 12 and a plurality of second A plurality of liquid flow channels are respectively formed between the microgrooves 32, and the liquid flow channels are in a connected state.

12 and 13, FIG. 12 is a schematic diagram of another first side of the first substrate, and FIG. 13 is a schematic diagram of another second side of the first substrate. The first substrate 1 is provided with a hole-like structure communicated in the middle, wherein one side of the structure is a vertical groove, and the other side is a horizontal groove. The first substrate 1 is heated by the sheet-like first heating element 2 .

Please refer to FIG. 14, which is a side view of the atomizing core. The first surface 10 in the present application is divided into a first region 50 and a second region 60 adjacent to the first region 50 . The plurality of first microgrooves 12 extend from the first region 50 to the second region 60 . The second surface 20 includes a third area 70 corresponding to the first area 50 , and the first heating element 2 is only disposed on and covers the third area 70 .

In order to avoid direct contact between the first heating element 2 and the aerosol-generating substrate 100 , the first substrate 1 in the present application is only partially infiltrated in the aerosol-generating substrate 100 , that is, the above-mentioned second region is infiltrated in the aerosol-generating substrate 100 . , the first region and the third region are not in direct contact with the aerosol-generating substrate 100 in the liquid reservoir. The aerosol-generating substrate 100 rises from the second region to the first region through capillary action, and the third region corresponding to the first region conducts the heat generated by the first heating element 2 to atomize the aerosol-generating substrate 100 . At the same time, the first heating element 2 covers part or all of the third region that is not infiltrated in the aerosol generating substrate 100 .

In order to solve the technical problem, the present application also provides an electronic atomization assembly, please refer to FIG. 15, FIG. 15 is a schematic diagram of the front structure of the first embodiment of the electronic atomization assembly of the present invention, and the electronic atomization assembly includes the liquid storage chamber 5 and the above-mentioned The liquid storage chamber 5 is used to store the aerosol generating substrate 100. During use, part of the atomizing core is infiltrated in the aerosol-generating matrix 100 in the liquid storage chamber 5 , specifically, the second region of the first surface 10 is infiltrated in the aerosol-generating matrix 100 , and the second region of the first surface 10 is infiltrated in the aerosol-generating matrix 100 The first region is not in contact with the aerosol-generating substrate 100, and the third region corresponding to the first region is also not in contact with the aerosol-generating substrate 100, so that the first heating element 2 located in the third region is separated from the aerosol-generating substrate 100 , to avoid the deterioration of the aerosol-generating substrate 100 caused by the long-term infiltration of the first heating element 2 in the aerosol-generating substrate 100 . At this time, one end of the atomizing core is inserted into the liquid storage chamber 5, and the aerosol generating substrate 100 rises from one end of the first micro groove 12 to perform atomization.

Please refer to FIG. 16. FIG. 16 is a schematic structural diagram of another embodiment of the electronic atomization assembly of the present invention. In the other embodiment, the plurality of first micro-grooves 12 are arranged in parallel and at intervals; The first liquid storage chambers 51 and the second liquid storage chambers 52 at both ends of the first micro grooves 12, the aerosol-generating substrates 100 in the first liquid storage chambers 51 and the second liquid storage chambers 52 are generated from the plurality of first micro grooves 12 The two ends of the first heating element 2 are arranged on the second surface 20 at the position corresponding to the middle of the plurality of first micro-grooves 12 . The electronic atomization assembly in this embodiment includes two liquid storage chambers, a first liquid storage chamber 51 and a second liquid storage chamber 52, which are respectively located at both ends of the first micro groove 12, so that the aerosol generating matrix 100 can be formed from both ends of the It diffuses to the middle, and is heated and atomized by the first heating element 2 located in the middle.

In still another embodiment, the plurality of first micro-grooves 12 extend from the center to the periphery; the liquid storage chamber 5 is arranged corresponding to the center, and the aerosol-generating matrix 100 in the liquid storage chamber 5 extends from the center along the plurality of first micro-grooves 12 . Diffusion to the surroundings; the first heating element 2 is arranged on the second surface 20 and is arranged around the liquid storage cavity 5 . The arrangement of the liquid storage chamber 5 in this embodiment is opposite to that of the above-mentioned embodiment. The liquid storage chamber 5 is located at the center of the plurality of first micro-grooves 12, and spreads from the center to the surrounding during use. The first heating element 2 is arranged in the liquid storage chamber. Cavity 5 around.

The present application also provides a method for manufacturing an electronic atomization assembly, and the method for manufacturing the electronic atomization assembly includes the following steps:

A first microgroove array 11 having a plurality of identical first microgrooves 12 is prepared on the first surface 10 of the first substrate 1, and the plurality of first microgrooves 12 are uniformly distributed on the first substrate 1;

The first heating element 2 is closely attached to the second surface 20 on the first substrate 1;

A portion of the first microgroove array 11 is soaked in the aerosol-generating matrix 100 .

In the above manufacturing method, the first microgrooves 12 are prepared and formed by photolithography etching, laser etching, nanoimprinting or plasma etching.

In the above manufacturing method, the first heating element 2 is prepared and formed by magnetron sputtering, evaporation or ion plating, or is formed by high-temperature sintering after screen printing or inkjet printing of electronic paste.

The above-mentioned manufacturing method also includes:

The first heating element 2 is fixed between the closely attached first substrate 1 and the second substrate 3 .

Corresponding to the structure of the second embodiment above, the first heating element 2 simultaneously heats the first substrate 1 and the second substrate 3 .

The above-mentioned manufacturing method also includes:

The first substrate 1 and the second substrate 3 are closely attached;

The first heating element 2 and the second heating element 4 are respectively attached to the first substrate 1 and the second substrate 3 .

Corresponding to the above-mentioned fourth embodiment, the first heating element 2 and the second heating element 4 respectively heat the first substrate 1 and the second substrate 3 .

In order to solve the technical problem, the present application also provides an electronic atomization device. As shown in FIG. 17 , the electronic atomization device includes a power supply assembly 6 and the above electronic atomization assembly.

Using the atomization core, electronic atomization assembly and electronic atomization device of the present invention, the substrate is made of dense material, the heating element and the liquid to be atomized are located on two different sides of the atomization core, and the two are not in contact at all. During use, there will be no deterioration of e-liquid caused by long-term storage, no heavy metal elements will appear during the atomization process, and the safety is higher.

The above is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, All are similarly included in the scope of patent protection of the present invention.

Claims

An atomizing core for heating an atomized aerosol to generate a substrate, characterized in that the atomizing core comprises:

A first substrate includes a first surface and a second surface opposite to the first surface, wherein a first microgroove array is provided on the first surface, and the first microgroove array includes a plurality of first a micro-groove, the first micro-groove is used to guide the aerosol-generating substrate, and the material of the first substrate is a dense material;

A first heating element, disposed on the second surface, is used for heating the first substrate to atomize the aerosol-generating matrix in the first microgroove.
The atomizing core according to claim 1, wherein the width of the first micro-grooves is less than 0.3 mm, and the depth is less than 0.3 mm.
The atomizing core according to claim 1, wherein the cross section of the first micro groove is V-shaped.
The atomizing core according to claim 1, wherein the first micro groove is a blind groove.
The atomizing core according to claim 1, wherein a temperature field is generated when the first heating element heats the first substrate, and the first microgrooves with different densities are arranged corresponding to different temperature regions.
The atomizing core according to claim 1, wherein the atomizing core further comprises:

The second substrate includes a third surface and a fourth surface opposite to the third surface, wherein the third surface is provided with a second micro-groove array, and the second micro-groove array includes a plurality of second micro-grooves groove;

Wherein, the first substrate and the second substrate are stacked and disposed, and the second surface and the fourth surface are attached, so that the first heating element is disposed on the first substrate and the first substrate. between the two substrates.
The atomizing core according to claim 1, wherein the atomizing core further comprises:

The second substrate includes a third surface and a fourth surface opposite to the third surface, wherein the third surface is provided with a second micro-groove array, and the second micro-groove array includes a plurality of second micro-grooves ;

Wherein, the first substrate and the second substrate are stacked and disposed, and the first surface is attached to the third surface, so that the first heating element is disposed on the first substrate away from the first heating element. two sides of the substrate.
The atomizing core according to claim 7, wherein the atomizing core further comprises:

a second heating element attached to the fourth surface for heating the second substrate;

Wherein, the first heating element and the second heating element are controlled and operated by different driving mechanisms, and the plurality of first micro-grooves and the plurality of second micro-grooves are not communicated with each other.
The atomizing core according to claim 7, wherein the plurality of first microslots are arranged in parallel and at intervals, the plurality of second microslots are arranged in parallel and at intervals, and the plurality of first microslots and The plurality of second micro-grooves are in cross communication with each other.
The atomizing core according to claim 1, wherein the first surface is divided into a first area and a second area adjacent to the first area, and the plurality of first microgrooves extend from the The first area extends to the second area, the second surface includes a third area corresponding to the first area, and the first heating element is only disposed on and covers the third area.
An electronic atomization assembly, characterized in that, the electronic atomization assembly comprises a liquid storage chamber and the atomization core according to any one of the above claims 1-10.
The electronic atomizer assembly according to claim 11, wherein the plurality of first microgrooves are arranged in parallel and spaced apart; the liquid storage chamber comprises first microgrooves disposed at intervals at both ends of the plurality of first microgrooves a liquid storage chamber and a second liquid storage chamber, the aerosol-generating substrates in the first liquid storage chamber and the second liquid storage chamber diffuse from both ends of the plurality of first microgrooves to the middle; the first liquid storage chamber The heating element is disposed at a position of the second surface corresponding to the middle of the plurality of first microgrooves.
The electronic atomization assembly according to claim 11, wherein the plurality of first micro-grooves extend from the center to the periphery; the liquid storage chamber is disposed corresponding to the center, and the gas in the liquid storage chamber The sol-generating matrix is diffused from the center to the periphery along the plurality of first microgrooves; the first heating element is disposed on the second surface and is disposed around the liquid storage cavity.
An electronic atomization device, characterized in that, the electronic atomization device comprises a power supply assembly and the electronic atomization assembly according to any one of the above claims 11-13.