CN215013611U

CN215013611U - Atomization component, atomizer, electronic atomization device and electronic cigarette

Info

Publication number: CN215013611U
Application number: CN202120512651.4U
Authority: CN
Inventors: 黄永河; 江品颐; 林信平; 刘双任; 徐述荣
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-12-07
Anticipated expiration: 2031-03-10

Abstract

The utility model provides an atomization assembly, which comprises a first oil guide body, a second oil guide body and a heating body, wherein the first oil guide body and the second oil guide body are both porous ceramic bodies, the first oil guide body is positioned at the liquid suction end of the atomization assembly, and the heating body is positioned at the atomization end of the atomization assembly; the second leads the oil body and is close to the first side surface that leads the oil body and has the sunk structure, and the sunk structure of second leading the oil body is located to the part or whole embedding of first leading the oil body. The atomization assembly has high structural strength and moderate oil guiding speed, and is favorable for realizing a good atomization effect. The utility model also provides an atomizer, electron atomizing device and electron cigarette.

Description

Atomization component, atomizer, electronic atomization device and electronic cigarette

Technical Field

The application relates to the technical field of electronic atomization devices, in particular to an atomization assembly, an atomizer, an electronic atomization device and an electronic cigarette.

Background

The atomizing component is an important part in the electronic atomizing device and mainly comprises an atomizing core and a heating body, wherein the atomizing core is communicated with an oil storage cavity for storing atomized liquid, the atomized liquid can be conducted to the heating body, and the atomized liquid is atomized after being heated by the heating body. However, the existing atomizing core still has poor comprehensive performance, and has the defects of low oil guiding speed, poor structural strength and short service life, and the atomizing core is complex in structure, so that the stable assembly is not facilitated, and the production yield of the atomizing core is reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, this application provides an atomizing subassembly, this atomizing subassembly uses the porous ceramic body as leading the oil storage chamber that oil storage subassembly was connected to the oil passageway, has improved atomizing subassembly's structural strength to atomizing subassembly still has higher oil guide speed, is favorable to realizing good atomization effect.

The application provides an atomization assembly in a first aspect, the atomization assembly comprises a first oil guide body, a second oil guide body and a heating body, the first oil guide body and the second oil guide body are both porous ceramic bodies, the first oil guide body is located at a liquid suction end of the atomization assembly, and the heating body is located at an atomization end of the atomization assembly;

the second oil guide body is provided with a concave structure on the surface of one side close to the first oil guide body, and part or all of the first oil guide body is embedded in the concave structure of the second oil guide body.

In this application, first oil guide body sets up in atomizing subassembly and oil storage subassembly's connecting channel, and first oil guide body can lead the oil guide body to the second with the atomized liquid conduction in oil storage chamber, and atomized liquid in the second oil guide body can realize atomizing after the heating of heating member. The first oil guide body and the second oil guide body are both porous ceramic bodies, so that the atomization assembly is ensured to have high structural strength while having good oil guide speed; lead the oil body at the second and be close to one side surface of first oil body and set up sunk structure and can increase the area of contact of first oil body and second oil body of leading to improve atomization component's oil speed of leading.

Optionally, first oil guide body part inlays and locates the second oil guide body, first oil guide body is including inlaying and locating the second oil guide body the embedding portion of sunk structure, the embedding portion with sunk structure cooperatees, the embedding portion fills completely the sunk structure.

Optionally, the first oil guide body is completely embedded in the recessed structure of the second oil guide body, the first oil guide body is matched with the recessed structure, and the first oil guide body is completely filled in the recessed structure.

Optionally, the first oil guide body is completely embedded in the recessed structure of the second oil guide body, the first oil guide body is matched with the recessed structure, and the first oil guide body is partially filled in the recessed structure.

Optionally, the oil guiding speed of the first oil guiding body is greater than the oil guiding speed of the second oil guiding body.

Optionally, the number of the concave structures is single or multiple.

Optionally, when the recessed structure is single, the recessed structure is located in the middle of the second oil guide body.

Optionally, the cross-sectional area of the recessed structure is less than or equal to 20mm²。

Optionally, the average pore diameter of the first oil guide body is greater than or equal to the average pore diameter of the second oil guide body.

Optionally, in the first oil guide body, the number of holes with a pore diameter larger than 20 μm and smaller than or equal to 100 μm is 90% or more.

Optionally, in the second oil guide body, the number of holes with a pore diameter larger than 10 μm and smaller than or equal to 30 μm is 90% or more.

Optionally, the porosity of the first oil guide body is greater than or equal to the porosity of the second oil guide body.

Optionally, the porosity of the first oil guide body is 40% -80%.

Optionally, the porosity of the second oil guide body is 20% to 60%.

Optionally, the porosity of the first oil guide body is greater than or equal to the porosity of the second oil guide body, and the average pore diameter of the first oil guide body is greater than or equal to the average pore diameter of the second oil guide body. When the aperture and the porosity of the first oil guide body and the second oil guide body have the above relations, the first oil guide body not only can have a good oil storage effect, but also has a fast oil guide speed, so that the supplement efficiency of atomized liquid in the atomization process is improved, and a good atomization effect is realized.

Optionally, the thermal conductivity of the first oil guide body is 0.2W/(m · K) -0.8W/(m · K).

Optionally, the second oil guide body has a thermal conductivity of 0.4W/(m · K) -1W/(m · K).

Optionally, the maximum size of the first oil guide body in the thickness direction is 0.5mm-3 mm.

Optionally, the maximum dimension of the second oil guide body in the thickness direction is 0.5mm-3 mm.

Optionally, the ratio of the maximum dimension of the second oil guide body in the thickness direction to the maximum dimension of the first oil guide body in the thickness direction is 1: (0.8-1.5).

Optionally, in the second oil guide body, the depth of the concave structure is 0.5mm-2 mm.

Optionally, the oil guiding speed of the atomization assembly is 1mg/s-3 mg/s.

Optionally, the crushing strength of the atomization component is 10Mpa-20 Mpa.

Optionally, the heating body includes any one of a heating coil or a heating net.

Thereby the atomizing component that this application first aspect provided adopts solid construction to lead oil passageway to improve atomizing component's structural strength, leads the structure and the aperture setting of the oil body through to first oil body and second and makes atomizing component have higher oil speed of leading, has realized good atomization effect. The atomization assembly is simple in structure, easy to assemble and beneficial to improving the qualification rate of product production.

In a second aspect, the present application provides an atomization assembly prepared by the above-described method.

The third aspect of the present application provides an atomizer, this atomizer includes the oil storage subassembly and the atomization component of this first aspect of the present application and second aspect, the oil storage subassembly includes the oil storage chamber, the oil storage chamber with atomization component's imbibition end direct contact.

In the atomizer provided by the third aspect of the present application, the oil storage assembly is directly connected to the atomizing assembly through the first oil guide body of the atomizing assembly, and the oil guide passage of the solid structure improves the structural strength of the atomizer, thereby prolonging the service life of the atomizer; the atomization assembly also has higher oil guiding speed, and can ensure that the atomizer has good atomization effect.

A fourth aspect of the present application provides an electronic atomising device comprising a power supply assembly and an atomiser according to the third aspect of the present application, the power supply assembly being electrically connected to the atomiser and being arranged to supply power to the atomiser.

The electronic atomization device that this application fourth aspect provided has good structural strength and longer life owing to adopt the atomizer of this application to atomization effect is good, and user's use experience is good.

The application provides an electronic cigarette in a fifth aspect, which comprises the electronic atomizer.

Drawings

FIG. 1 is a schematic cross-sectional view of an atomizing assembly provided in accordance with an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of an atomizing assembly according to another embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of an atomizing assembly according to another embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional thickness view of an atomizing assembly provided in accordance with an embodiment of the present disclosure;

FIG. 5 is a flow chart illustrating a process for preparing an atomizing assembly according to an embodiment of the present disclosure;

FIG. 6 is a schematic cross-sectional view of an atomizing assembly provided in example 3 of the present application;

FIG. 7 is a schematic cross-sectional view of an atomizing assembly provided in example 4 of the present application;

FIG. 8 is a schematic cross-sectional view of an atomizing assembly provided in comparative example 1 of the present application;

fig. 9 is a schematic cross-sectional view of an atomizing assembly provided in comparative example 2 of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The existing atomization assembly is connected with a liquid storage cavity of an oil storage assembly through a groove structure arranged on the surface of an atomization core so as to realize the conduction of atomized liquid. However, the arrangement of the groove structure on the surface of the atomizing core can reduce the structural strength of the atomizing assembly and shorten the service life of the atomizing assembly; secondly, the groove structure is not beneficial to the wetting of the atomized liquid, so that the atomized liquid is unevenly distributed in the atomization assembly; thirdly, in the firing process, because the ceramic sintering needs to be buried by using the buried burning powder, the buried burning powder easily enters the groove structure of the atomization component, and the normal use of the atomization component is influenced. For the structural strength who improves atomization component and lead oily speed, improve the qualification rate of atomization component production, this application embodiment provides an atomization component, and this atomization component has not only solved because set up the problem that groove structure makes the structural strength of atomizing core reduce, has also reduced the condition of atomizing core oil leak simultaneously well, has fine atomization effect.

The application provides an atomization assembly 100, wherein the atomization assembly 100 comprises a first oil guide body 10, a second oil guide body 20 and a heating body 30, the first oil guide body 10 and the second oil guide body 20 are both porous ceramic bodies, the first oil guide body 10 is positioned at a liquid suction end of the atomization assembly 100, and the heating body 30 is positioned at an atomization end of the atomization assembly; according to the specific embodiment of the application, the surface of one side of the second oil guide body, which is close to the first oil guide body, is provided with the recessed structure, and part or all of the first oil guide body is embedded in the recessed structure of the second oil guide body.

In some embodiments of the present application, the first oil guiding body is partially embedded in the second oil guiding body, the first oil guiding body includes an embedded portion embedded in the recessed structure of the second oil guiding body, the embedded portion is matched with the recessed structure, and the embedded portion completely fills the recessed structure, as shown in fig. 1, 4, and 6.

In some embodiments of the present application, the first oil guiding body is completely embedded in the recessed structure of the second oil guiding body, the first oil guiding body is matched with the recessed structure, and the first oil guiding body completely fills the recessed structure, as shown in fig. 2 and 7.

In some embodiments of the present application, the first oil guiding body is completely embedded in the recessed structure of the second oil guiding body, the first oil guiding body is matched with the recessed structure, and the first oil guiding body partially fills the recessed structure, as shown in fig. 3.

The present application is further illustrated by the following specific examples.

Referring to fig. 1, fig. 1 is a schematic cross-sectional view of an atomizing assembly according to an embodiment of the present disclosure. Wherein, atomizing subassembly 100 is including the first oil guide body 10, the second oil guide body 20 and the heating member 30 that set gradually, and one side surface a that the second oil guide body was kept away from to the first oil guide body is atomizing subassembly's imbibition end, and one side surface b that the second oil guide body is close to the heating member is atomizing subassembly's atomizing end. In this application, atomizing component's imbibition end and atomized liquid contact can be with the first oil body of leading of atomized liquid suction, atomizing component's atomizing end and heating member contact, and the heating member can lead the atomized liquid heating atomization in the oil body with the second. In the embodiment of the application, the second oil guide body has a concave structure on one side surface close to the first oil guide body, and part or all of the first oil guide body is embedded in the concave structure of the second oil guide body. Lead the oil body at the second and be close to one side surface of first oil body and set up sunk structure and can increase the area of contact of first oil body and second oil body of leading to improve atomization component's oil speed of leading. In the embodiment of the application, a surface of one side of the first oil guide body, which is far away from the second oil guide body, is of a planar structure. When the surface a is a planar structure, the atomizing assembly can have high structural strength.

In some embodiments of the present application, the first oil guiding body is partially embedded in the recessed structure of the second oil guiding body, the first oil guiding body includes an embedded portion and a non-embedded portion, the embedded portion of the first oil guiding body completely fills the recessed structure of the second oil guiding body, the embedded portion of the first oil guiding body matches with the recessed structure of the second oil guiding body, the non-embedded portion of the first oil guiding body is stacked on the surface of the second oil guiding body, please refer to fig. 1, fig. 1 is a schematic cross-sectional view of the atomizing assembly provided in an embodiment of the present application, wherein the first oil guiding body 10 is partially embedded in the recessed structure of the second oil guiding body 20, the embedded portion of the first oil guiding body 10 completely fills the recessed structure of the second oil guiding body 20, and the non-embedded portion of the first oil guiding body 10 is stacked on the surface of the second oil guiding body 20.

In some embodiments of this application, first oil body of leading is whole to be inlayed and to be located the sunk structure of second oil body, and first oil body of leading cooperatees with sunk structure, and first oil body of leading fills sunk structure completely. Referring to fig. 2, fig. 2 is a schematic cross-sectional view of an atomizing assembly according to an embodiment of the present disclosure, in which the first oil guiding body 10 is completely embedded in the recessed structure of the second oil guiding body 20, and the first oil guiding body 10 completely fills the recessed structure of the second oil guiding body 20.

In some embodiments of the present application, the first oil guiding body is completely embedded in the recessed structure of the second oil guiding body, the first oil guiding body is matched with the recessed structure, and the recessed structure is filled with the first oil guiding body. Referring to fig. 3, fig. 3 is a schematic cross-sectional view of an atomizing assembly according to an embodiment of the present disclosure, in which the first oil guide body 10 is completely embedded in the recessed structure of the second oil guide body 20, and the first oil guide body 10 partially fills the recessed structure of the second oil guide body 20.

In the embodiment of the present application, the second oil guide bodyWhen the second oil guide body is provided with a plurality of concave structures on one side surface close to the first oil guide body, correspondingly, when the first oil guide body is completely embedded in the concave structures of the second oil guide body, the application comprises a plurality of first oil guide bodies to fill the plurality of concave structures on the surface of the second oil guide body; when the first oil guide body part is embedded in the recessed structure of the second oil guide body, the side surface of the first oil guide body close to the second oil guide body is provided with a plurality of embedded parts matched with the recessed structure of the second oil guide body. Through leading the oil body at the second and being close to one side surface of first oil body and setting up sunk structure, be favorable to increasing the oil storage capacity of first oil body on the one hand, on the other hand is favorable to increasing the area of contact of first oil body and the second oil body to the oil speed is led in the improvement. In some embodiments of the present application, when the number of the recessed structures of the second oil guiding body is one and the first oil guiding body is partially embedded in the recessed structures of the second oil guiding body, the recessed structures of the second oil guiding body are disposed in the middle of the second oil guiding body, and the embedded portion of the first oil guiding body is disposed in the middle of the first oil guiding body. The concave structure is arranged in the middle of the second oil guide body, so that the transmission path of the atomized liquid can be effectively shortened, the transmission of the atomized liquid is promoted, and the atomization assembly has higher oil guide speed; atomized liquid can be evenly distributed in the atomizing assembly, and a good atomizing effect is achieved. In some embodiments of this application, when first oil guide body portion inlays the sunk structure of locating the second oil guide body, in the direction of imbibition end to atomizing end along atomizing subassembly, first oil guide body inlays the embedding portion cross-sectional area of locating the second oil guide body sunk structure portion and reduces gradually, and above-mentioned design can make the atomized liquid of first oil guide body concentrate in the embedding portion, can increase the transmission pressure of atomized liquid, improves the transmission rate of atomized liquid. In some embodiments of the present application, the cross-sectional area of the concave structure of the second oil guide body is less than or equal to 20mm²。

In the embodiments of the present application, the first oil guide body and the second oil guide body are both porous ceramic bodies. The porous structure of the porous ceramic can well soak the atomized liquid to promote the transmission of the atomized liquid, and the porous ceramic has good structural strength, so that the oil guide body can be ensured to have higher oil guide efficiency and structural strength. In the embodiment of the application, the oil guiding speed of the first oil guiding body is greater than that of the second oil guiding body. In the application, the oil guiding speed of the oil guiding body is tested by adopting the following method: and placing the oil guide body on an accurate electronic balance, dripping the tobacco tar on the surface of the oil guide body and timing, stopping timing when all oil drops permeate into the oil guide body, and calculating the oil guide speed according to the weight/time of the tobacco tar. When the oil guiding speed of the first oil guiding body is higher than that of the second oil guiding body, the first oil guiding body is partially or completely embedded in the concave structure of the second oil guiding body, and the first oil guiding body has a higher oil guiding speed relative to the second oil guiding body, so that on one hand, the atomizing core has a better liquid storage function relative to the existing atomizing core, and the oil leakage condition can be effectively reduced; on the other hand, first oil guide body can play the effect of tentatively shunting atomizing liquid to optimize atomization effect.

In some embodiments of the present application, the average pore diameter of the first oil guiding body is greater than or equal to the average pore diameter of the second oil guiding body, as long as the oil guiding speed of the first oil guiding body is greater than the oil guiding speed of the second oil guiding body, that is, when the average pore diameter of the first oil guiding body is equal to the average pore diameter of the second oil guiding body, the porosity of the first oil guiding body may be greater than the porosity of the second oil guiding body, so as to achieve that the oil guiding speed of the first oil guiding body is greater than the oil guiding speed of the second oil guiding body.

In some embodiments of the present application, the porosity of the first oil guiding body is greater than or equal to the porosity of the second oil guiding body, as long as the oil guiding speed of the first oil guiding body is greater than the oil guiding speed of the second oil guiding body, that is, when the porosity of the first oil guiding body is equal to the porosity of the second oil guiding body, the average pore diameter of the first oil guiding body may be greater than the average pore diameter of the second oil guiding body, so as to achieve that the oil guiding speed of the first oil guiding body is greater than the oil guiding speed of the second oil guiding body. In some embodiments of the present disclosure, the first oil guide body has an average pore size larger than an average pore size of the second oil guide body, and the first oil guide body has a porosity larger than a porosity of the second oil guide body. Because the first oil guide body is positioned at the liquid absorption end of the atomization assembly, in order to ensure that the atomized liquid can be quickly conducted to the atomization end of the atomization assembly, the first oil guide body is provided with a large number of oil guide channels so as to realize the transmission of the atomized liquid; and when the average pore diameter and the porosity of the first oil guide body are both larger than those of the second oil guide body, the first oil guide body can also play a role in oil storage, so that atomized liquid in the second oil guide body is effectively supplemented, and the atomization assembly is ensured to have uniform and stable oil guide speed.

In the embodiment of the application, the pore diameter of the first oil guide body is 10-500 μm. The pore size of the first oil guide body is specifically but not limited to 10 μm, 20 μm, 30 μm, 80 μm, 100 μm, 150 μm, 200 μm, 300 μm or 500 μm. In the embodiment of the application, the number of the holes with the pore diameter of 20-100 μm in the first oil guide body is 90% or more. In some embodiments of the present disclosure, the number of pores with a pore diameter of 50 μm to 100 μm in the first oil guide body is 80% or more. In the embodiment of the present application, the first oil guide body has a porosity of 40% to 80%. The porosity of the first oil guide body is particularly, but not exclusively, 40%, 50%, 60%, 70% or 80%. When the aperture and the porosity of the first oil guide body are in the ranges, the first oil guide body can have larger oil storage capacity and can quickly transmit the atomized liquid to the second oil guide body, and the atomized liquid is guaranteed to have higher transmission rate.

In the embodiment of the application, the pore diameter of the second oil guide body is 5-50 μm. The pore size of the second oil guide body is specifically but not limited to 5 μm, 10 μm, 20 μm, 25 μm, 30 μm, 40 μm or 50 μm. In the embodiment of the application, the number of the holes with the aperture of 10 μm to 30 μm in the second oil guide body is 90% or more. In the embodiment of the present application, the porosity of the second oil guide body is 20% to 60%. The porosity of the second oil guide body is specifically, but not limited to, 20%, 40%, 50%, or 60%. When the aperture and the porosity of the second oil guide body are in the ranges, the second oil guide body can convert atomized liquid into fine liquid drops, and good atomization effect is achieved.

In the embodiment of the present application, the thermal conductivity of the first oil guide body is smaller than that of the second oil guide body. In the embodiment of the application, the thermal conductivity of the first oil guide body is 0.2W/(m.K) -0.8W/(m.K). The thermal conductivity of the first oil guide body may specifically be, but not limited to, 0.2W/(m · K), 0.5W/(m · K), or 0.8W/(m · K). In the embodiment of the present application, the thermal conductivity of the second oil guide body is 0.4W/(m.K) -1W/(m.K). The thermal conductivity of the second oil guide body may specifically be, but not limited to, 0.4W/(m · K), 0.7W/(m · K), or 1W/(m · K). The smaller heat conductivity of the first oil guide body is beneficial to concentrating the heat of the heating body on the second oil guide body, so that the heating efficiency is improved, and a good atomization effect is realized.

In the present application, the maximum dimension of the first oil guide body in the thickness direction refers to the maximum distance from the surface of the first oil guide body on the side away from the second oil guide body to the surface of the second oil guide body. The maximum size of the second oil guide body in the thickness direction refers to the maximum distance from the contact surface of the second oil guide body and the first oil guide body to the heating body, and the recessed depth of the second oil guide body refers to the maximum difference of the distance from the contact surface of the second oil guide body and the first oil guide body to the heating body. Referring to fig. 4, fig. 4 is a schematic cross-sectional thickness diagram of an atomizing assembly according to an embodiment of the present disclosure, in which D1 represents a maximum dimension of the first oil guide body in a thickness direction, D2 represents a maximum dimension of the second oil guide body in the thickness direction, and D3 represents a recess depth of the second oil guide body. In the embodiment of the application, the maximum size of the first oil guide body in the thickness direction is 0.5mm-3 mm. The maximum dimension of the first oil guide body in the thickness direction is specifically but not limited to 0.5mm, 1mm, 2mm or 3 mm. In the embodiment of the application, the maximum size of the second oil guide body in the thickness direction is 0.5mm-3 mm. The maximum dimension of the second oil guide body in the thickness direction is specifically but not limited to 0.5mm, 1mm, 2mm or 3 mm. When setting the maximum dimension of first oil guide body and second oil guide body along the thickness direction in above-mentioned scope, the atomizing liquid can have better conduction and atomizing effect.

In the embodiment of the present application, the ratio of the maximum dimension of the second oil guide body in the thickness direction to the maximum dimension of the first oil guide body in the thickness direction is 1: (0.8-2). In some embodiments of the present application, the ratio of the largest dimension of the second oil guide body in the thickness direction to the largest dimension of the first oil guide body in the thickness direction is 1: (0.8-1.5). The ratio of the maximum dimension of the second oil guide body in the thickness direction to the maximum dimension of the first oil guide body in the thickness direction is specifically, but not limited to, 1: 0.5, 1: 0.8, 1:1, 1: 1.2, or 1: 1.5. Under the above-mentioned ratio scope of maximum dimension along the thickness direction, atomizing subassembly can have higher oil guide speed to the atomized liquid can form tiny liquid droplet, is favorable to realizing good atomization effect. In the embodiment of the application, the depth of the concave structure in the second oil guide body is 0.5mm-2 mm. The depth of the recessed features is specifically, but not limited to, 0.5mm, 1mm, or 2 mm. In some embodiments of the present application, since the average pore diameter or porosity of the second oil guide body is smaller than the average pore diameter or porosity of the first oil guide body, the oil guide speed of the second oil guide body is low, and the transmission distance of the atomized liquid in the second oil guide body can be shortened by setting the depth of the depression within the above range, thereby shortening the transmission time of the atomized liquid.

In the embodiment of the application, the oil guiding speed of the atomizing assembly is 1mg/s-3 mg/s. The oil guiding speed of the atomization assembly is the integral oil guiding speed of the atomization assembly. The oil-guiding speed of the atomizing assembly can be specifically but not limited to 1mg/s, 1.5mg/s, 2mg/s, 2.5mg/s or 3 mg/s. In the embodiment of the application, the crushing strength of the atomization component is 10-20 Mpa. The crushing strength of the atomization component is specifically but not limited to 10Mpa, 13Mpa, 15Mpa, 17Mpa, 19Mpa or 20 Mpa.

The application provides thereby atomizing component leads the oil passageway through adopting solid construction and has improved atomizing component's structural strength, has avoided adopting among the current atomizing component to lead the poor problem of structural strength that hollow structure such as oil pipe or lead oil grooves caused. The structure and the aperture setting of leading the oil body through to first oil body and second make atomization component have higher oil speed of leading, have realized good atomization effect. The atomization assembly is simple in structure, easy to assemble and beneficial to improving the qualification rate of product production.

Referring to fig. 5, fig. 5 is a flowchart illustrating a process for manufacturing an atomizing assembly according to an embodiment of the present disclosure, where the method includes the following steps:

step 100: mixing a first pore-forming agent, first ceramic powder, a first lubricant, a first dispersant and a first plasticizer, and banburying to obtain a first feed;

step 200: mixing a second pore-forming agent, second ceramic powder, a second lubricant, a second dispersing agent and a second plasticizer, and banburying to obtain a second feed;

step 300: preparing a ceramic blank body by adopting a two-color injection molding process for the first feeding material and the second feeding material;

step 400: performing first sintering on the ceramic blank to obtain a first oil guide body and a second oil guide body;

step 500: and arranging the heating circuit on the surface of the second oil guide body to obtain the atomization assembly.

In the atomization assembly, a first oil guide body is positioned at the liquid suction end of the atomization assembly, and a heating body is positioned at the atomization end of the atomization assembly; the second leads the oil body and is close to the first side surface that leads the oil body and has the sunk structure, and the sunk structure of second leading the oil body is located to the part or whole embedding of first leading the oil body.

According to some embodiments of the present application, the step of disposing the heat generating circuit on the second oil guiding surface includes: and silk-printing the conductive paste on the surface of the second oil guide body, and performing second sintering to obtain the heating body.

In this application, step 100 is the first feedstock preparation process. In the embodiment of the application, 20% -40% of a first pore-forming agent, 25% -35% of a first ceramic powder, 25% -50% of a first lubricant, 2% -10% of a first dispersant and 5% -10% of a first plasticizer. In an embodiment of the present application, the first pore-forming agent includes one or more of wood fiber, bamboo fiber, cotton cloth, sawdust, rice hull, and sucrose. The material has larger diameter, which is beneficial to forming larger holes in the firing process. In the embodiment of the present application, the average particle diameter of the first pore-forming agent is 30 μm to 50 μm. In some embodiments of the present disclosure, the first pore-forming agent is composed of wood fiber and bamboo fiber, wherein the wood fiber is 30% to 70% by mass, and the bamboo fiber is 30% to 70% by mass. When the bamboo fiber and the wood fiber are used as pore-forming agents, the porosity of the ceramic can be effectively improved, pores with the pore diameter of 50-200 mu m are easy to form in the ceramic firing process, and the distribution of the pores is relatively dispersed. In the embodiment of the application, the mass percentage of the first pore-forming agent in the first feed is 20% to 40%, and the mass percentage of the first pore-forming agent in the first feed may specifically be, but is not limited to, 20%, 25%, 30%, or 40%.

In an embodiment of the present application, the first ceramic powder includes one or more of alumina, silica, zirconia, calcium oxide, calcium carbonate, magnesium oxide, barium carbonate, and barium sulfate. In some embodiments of the present disclosure, the first ceramic powder is composed of 5% to 15% by mass of alumina and 85% to 95% by mass of silica. When the silicon dioxide is used as ceramic powder, a porous structure is easy to generate during sintering, the strength and toughness of the porous ceramic can be improved by adding aluminum oxide, and the microporous structure of the ceramic can be further improved by adopting the combination of the aluminum oxide and the silicon dioxide. In the embodiment of the present application, the particle size of the first ceramic powder is 0.5 μm to 20 μm. The particle size of the first ceramic powder may be specifically, but not limited to, 0.5 μm, 1 μm, 3 μm, 5 μm, 10 μm, 15 μm, or 20 μm. In the embodiment of the application, the mass percentage of the first ceramic powder in the first feed is 25% to 35%, and the mass percentage of the first ceramic powder in the first feed may be, but is not limited to, 25%, 27%, 30% or 35%.

In embodiments of the present application, the first lubricant comprises one or more of paraffin wax, white wax, ozokerite, carnauba wax, mineral wax, fischer-tropsch wax, and beeswax. The ceramic powder particles can be effectively wetted by using the substances as the lubricant, so that the friction among the particles is reduced, the raw material components are fully mixed, and the feeding uniformity is improved. In the embodiment of the present application, the mass percentage of the first lubricant in the first feed is 25% to 50%, and the mass percentage of the first lubricant in the first feed may specifically be, but is not limited to, 25%, 30%, 40%, or 50%.

In an embodiment of the present application, the first dispersant includes one or more of a fatty acid-based dispersant and an acrylic resin-based dispersant. Further, the first dispersant includes stearic acid. The dispersant is added to inhibit the agglomeration of the ceramic powder, so that the components are uniformly dispersed in the feed, and a uniformly distributed hole structure is formed. In the embodiment of the application, the mass percentage of the first dispersing agent in the first feeding is 2% to 10%, and the mass percentage of the first dispersing agent in the first feeding may be, but is not limited to, 2%, 5%, 7% or 10%.

In embodiments of the present application, the first plasticizer comprises one or more of dioctyl phthalate and dibutyl phthalate. The substances can promote ceramic molding, and are beneficial to forming a ceramic blank with a stable structure by a subsequent double-shot molding process. In the embodiment of the application, the mass percentage of the first plasticizer in the first feeding is 5% to 10%, and the mass percentage of the first plasticizer in the first feeding may be specifically, but not limited to, 5%, 7% or 10%.

In this application, step 200 is the preparation of the second feedstock. In the embodiment of the application, the second feed comprises the following raw materials in percentage by mass: 10-30% of a second pore-forming agent, 30-40% of second ceramic powder, 10-30% of a second lubricant, 2-10% of a second dispersant and 5-10% of a second plasticizer. In an embodiment of the present application, the second pore-forming agent includes one or more of carbon powder and starch. The material is beneficial to forming smaller holes in the firing process. In the embodiment of the present application, the average particle diameter of the second pore-forming agent is 10 μm to 30 μm. In some embodiments of the present application, the second pore-forming agent is composed of 60% to 90% by mass of carbon powder and 10% to 40% by mass of starch. When the carbon powder and the starch are simultaneously used as pore-forming agents, different pore diameters and pore shapes can be formed, so that the obtained porous ceramic pore channel is finer, the atomized liquid can be refined, and full atomization can be realized. In the embodiment of the application, the mass percentage of the second pore-forming agent in the second feed is 10% to 30%, and the mass percentage of the second pore-forming agent in the second feed may specifically be, but is not limited to, 10%, 15%, 20%, or 30%.

In an embodiment of the present application, the second ceramic powder includes one or more of alumina, silica, zirconia, calcium oxide, calcium carbonate, magnesium oxide, barium carbonate, and barium sulfate. In the embodiment of the present application, the particle size of the second ceramic powder is 0.5 μm to 20 μm. In the embodiment of the application, the mass percentage of the second ceramic powder in the second feed is 30% to 40%, and the mass percentage of the second ceramic powder in the second feed may be specifically, but not limited to, 30%, 32%, 35%, or 40%.

In embodiments of the present application, the second lubricant comprises one or more of paraffin wax, white wax, ozokerite, carnauba wax, mineral wax, fischer-tropsch wax, and beeswax. In the embodiment of the present application, the mass percentage of the second lubricant in the second feedstock is 10% to 30%, and the mass percentage of the second lubricant in the second feedstock may specifically be, but is not limited to, 10%, 15%, 20%, or 30%.

In an embodiment of the present application, the second dispersant includes one or more of a fatty acid-based dispersant and an acrylic resin-based dispersant. Further, the second dispersant includes stearic acid. In the embodiment of the application, the mass percentage of the second dispersing agent in the second feeding is 2% to 10%, and the mass percentage of the second dispersing agent in the second feeding may be, but is not limited to, 2%, 5%, 7% or 10%.

In embodiments of the present application, the second plasticizer comprises one or more of dioctyl phthalate and dibutyl phthalate. In the embodiment of the present application, the mass percentage of the second plasticizer in the second feedstock is 5% to 10%, and the mass percentage of the second plasticizer in the second feedstock may specifically be, but is not limited to, 5%, 7%, or 10%.

In the embodiment of the application, the banburying temperature of the first feeding and the second feeding is 120-180 ℃. The banburying temperature of the first feeding and the second feeding may be, but not limited to, 120 ℃, 150 ℃, 160 ℃, 170 ℃ or 180 ℃. The banburying time of the first feeding and the second feeding is 1h-5 h. The banburying time of the first feeding and the second feeding can be specifically but not limited to 1h, 3h or 5 h.

In step 300 of the present application, a ceramic green body is prepared from a first feed and a second feed by a two-color injection molding process, wherein the two-color injection molding process specifically comprises: closing the die 1 and the die 2, and performing first injection molding by adopting a second feeding material to obtain a second oil guide body blank; after the mold is cooled, the mold 1 and the mold 2 are transferred, the second oil guiding body blank and the mold 3 are closed and the mold is openedAnd performing injection molding by adopting the first feeding to form a first oil guide body blank, and integrating the second oil guide body blank and the first oil guide body blank into a whole. In the embodiment of the present application, the first injection molding is 1000kgf/mm²-1500kgf/mm²Is injected under a pressure of 0.1s-2s at 500kgf/mm²-1500kgf/mm²Maintaining the pressure for 3-20 s. In the embodiment of the application, the temperature of the mold for the first injection molding is 150 ℃ to 300 ℃. In the embodiment of the present application, the second injection molding is 800kgf/mm²-1500kgf/mm²Is injected under a pressure of 0.1s-2s at 500kgf/mm²-1500kgf/mm²Maintaining the pressure for 3-20 s. In the embodiment of the present application, the mold temperature of the second injection molding is 150 ℃ to 300 ℃.

In the step 400, a ceramic blank is subjected to first sintering to obtain a first oil guide body and a second oil guide body, wherein the sintering temperature of the first sintering is 1000-1500 ℃, the sintering time of the first sintering is 0.5-3 h, and the temperature is kept for 1-4 h after sintering. In the embodiment of the present application, the sintering temperature of the first sintering may be, but is not limited to, 1000 ℃, 1200 ℃, 1300 ℃, or 1500 ℃. The sintering time of the first sintering may be specifically, but not limited to, 0.5h, 1h, 2h, or 3 h.

The application provides a preparation method of atomization component adopts double-shot moulding process to obtain the first oil guide body and the second oil guide body of integration, has improved atomization component's structural strength well. The method has the advantages of simple and controllable process, easy operation, contribution to realizing automatic production, good aperture distribution of the obtained atomization assembly, high structural precision and higher product yield.

The application also provides an atomization assembly prepared by the preparation method of the atomization assembly.

This application still provides an atomizer, and this atomizer includes the oil storage subassembly and the atomization component in this application, and the oil storage subassembly includes the oil storage chamber, and the oil storage chamber holds direct contact with atomization component's imbibition. In this application, atomizing component's first oil guide body directly links to each other with the oil storage chamber of oil storage component, leads the oil passageway through solid construction and has improved the structural strength of atomizer effectively to this atomizing component still has higher oil guide speed, can guarantee that the atomizer has good atomization effect.

The present application further provides an electronic atomization device, which includes a power supply assembly and the atomizer of the present application, the power supply assembly being electrically connected to the atomizer and being configured to supply power to the atomizer. The application provides an electronic atomization device has good structural strength and longer life to atomization effect is good, and user's use experience is good.

The application also provides an electron cigarette, and this electron cigarette includes the foretell electron atomizing device of this application.

The following further describes embodiments of the present application in terms of a number of examples.

Example 1

A method of making an atomization assembly, comprising:

(1) preparing a first feed:

mixing a pore-forming agent 1, ceramic powder 1, a lubricant 1, a dispersant 1 and a plasticizer 1, and then carrying out densification to obtain a first feed, wherein the first feed comprises the following raw materials in percentage by mass: 35 wt% of pore-forming agent 1 (specifically, 30 wt% of wood fiber and 70 wt% of bamboo fiber), 25 wt% of ceramic powder 1 (specifically, 15 wt% of alumina and 85 wt% of silica), 30 wt% of lubricant 1 (specifically, paraffin), 5 wt% of dispersant 1 (specifically, stearic acid), and 5 wt% of plasticizer 1 (specifically, dioctyl phthalate). The pore-forming agent 1 had an average particle diameter of 40 μm.

(2) Preparing a second feed:

mixing the pore-forming agent 2, the ceramic powder 2, the lubricant 2, the dispersant 2 and the plasticizer 2, and then carrying out densification to obtain a second feed, wherein the second feed comprises the following raw materials in percentage by mass: 20 wt% of pore-forming agent 2 (specifically 60 wt% of carbon powder and 40 wt% of starch), 40 wt% of ceramic powder 2 (specifically 15 wt% of alumina and 85 wt% of silica), 30 wt% of lubricant 2 (specifically palm wax), 3 wt% of dispersant 2 (specifically stearic acid), and 7 wt% of plasticizer 2 (specifically dioctyl phthalate). The pore-forming agent 2 had an average particle diameter of 20 μm.

(3) Preparing a ceramic body:

and (5) closing the dies by using the die 1 and the die 2, and performing injection molding by using a second feeding material to obtain a porous matrix blank. The injection pressure was 1500kgf/mm²The injection time was 1 s. The pressure for maintaining the pressure is 1000kgf/mm²The dwell time was 10s and the mold temperature was 200 ℃.

And after cooling, closing the porous matrix blank and the die 3, performing injection molding on the porous matrix blank by adopting the first feeding material, performing injection molding on the filling layer blank, and integrating the filling layer blank and the porous matrix blank to obtain the ceramic blank. The injection pressure was 1200kgf/mm²The injection time was 1 s. The pressure for maintaining the pressure is 1000kgf/mm²The dwell time was 10s and the mold temperature was 200 ℃.

(4) Sintering the ceramic blank at 1200 ℃ for 2h to obtain porous ceramic, silk-screening a heating circuit on the surface of the porous ceramic, and sintering in an atmosphere furnace to obtain the atomization assembly.

Referring to fig. 1, a schematic cross-sectional view of an atomizing assembly obtained in example 1 shows that a concave structure is formed in the middle of the second oil guiding body near the surface of the first oil guiding body, and the surface of the first oil guiding body near the second oil guiding body has an embedded portion matched with the concave structure of the second oil guiding body. The maximum dimension D1 of the first oil guide body in the thickness direction is 4.5mm, the maximum dimension D2 of the second oil guide body in the thickness direction is 3mm, the concave depth D3 of the second oil guide body is 2mm, and the thickness ratio of the second oil guide body to the first oil guide body is 1: 1.5.

Example 2

A method of making an atomization assembly, comprising:

(1) preparing a first feed:

mixing a pore-forming agent 1, ceramic powder 1, a lubricant 1, a dispersant 1 and a plasticizer 1, and then carrying out densification to obtain a first feed, wherein the first feed comprises the following raw materials in percentage by mass: 30 wt% of pore-forming agent 1 (specifically, 50 wt% of carbon powder and 50 wt% of starch), 27 wt% of ceramic powder 1 (specifically, 10 wt% of alumina and 90 wt% of silica), 35 wt% of lubricant 1 (specifically, paraffin), 3 wt% of dispersant 1 (specifically, stearic acid), and 5 wt% of plasticizer 1 (specifically, dioctyl phthalate). The pore-forming agent 1 had an average particle diameter of 50 μm.

(2) Preparing a second feed:

mixing a pore-forming agent 2, ceramic powder 2, a lubricant 2, a dispersant 2 and a plasticizer 2, and then carrying out densification to obtain a first feed, wherein the first feed comprises the following raw materials in percentage by mass: 20 wt% of pore-forming agent 2 (specifically 60 wt% of carbon powder and 40 wt% of starch), 35 wt% of ceramic powder 2 (specifically 15 wt% of alumina and 85 wt% of silicon dioxide), 25 wt% of lubricant 2 (specifically palm wax), 10 wt% of dispersant 2 (specifically stearic acid) and 10 wt% of plasticizer 2 (specifically dibutyl phthalate). The pore-forming agent 2 had an average particle diameter of 10 μm.

(3) Preparing a ceramic body:

And after cooling, closing the porous matrix blank and the die 3, performing injection molding on the porous matrix blank by adopting a first feeding material, performing injection molding on the filling layer blank, and integrating the filling layer blank and the porous matrix blank into a whole to obtain the ceramic blank. The injection pressure was 1200kgf/mm²The injection time was 1 s. The pressure for maintaining the pressure is 1000kgf/mm²The dwell time was 10s and the mold temperature was 200 ℃.

Example 2 the same mold as in example 1 was used for injection molding, and the structure of the resulting atomization assembly was the same as in example 1.

Example 3

The difference from the embodiment 1 is that: in the step (3) of example 3, different molds are used for injection molding, and in the atomization assembly of example 3, the side surface of the second oil guide body close to the first oil guide body is provided with a plurality of concave structures. Referring to fig. 6, fig. 6 is a schematic cross-sectional view of an atomizing assembly according to embodiment 3 of the present application, wherein a side surface c of the second oil guiding body 20 close to the first oil guiding body 10 has three recessed structures, and a side surface of the first oil guiding body 10 close to the second oil guiding body 20 has three embedded portions matching with the recessed structures of the second oil guiding body. The atomizing assembly according to example 3, the maximum dimension D1 of the first oil guide body in the thickness direction was 4.5mm, the maximum dimension D2 of the second oil guide body in the thickness direction was 3mm, the depression depth D3 of the second oil guide body was 2mm, and the ratio of the thickness of the second oil guide body to that of the first oil guide body was 1: 1.5.

Example 4

The difference from the embodiment 1 is that: in the step (3) of the embodiment 4, different molds are used for injection molding, and in the atomizing assembly of the embodiment 4, the first oil guide body is completely embedded in the recessed structure of the second oil guide body, and the first oil guide body completely fills the recessed structure. Referring to fig. 7, fig. 7 is a schematic cross-sectional view of an atomizing assembly according to embodiment 4 of the present application, wherein a thickness of the first oil guide body 10 is equal to a recess depth of the second oil guide body 20. The atomizing assembly according to example 4, the maximum dimension D1 of the first oil guide body in the thickness direction was 4.5mm, the maximum dimension D2 of the second oil guide body in the thickness direction was 3mm, the depression depth D3 of the second oil guide body was 3mm, and the ratio of the thickness of the second oil guide body to that of the first oil guide body was 1: 1.5.

Example 5

The difference from the embodiment 1 is that: in the step (3) of example 5, different molds are used for injection molding, and the cross-sectional view of the atomizing assembly of example 5 can be seen in fig. 1, which is different from the atomizing assembly of example 1 in the thicknesses and the recess depths of the first oil guide body and the second oil guide body, specifically, in the atomizing assembly of example 5, the maximum dimension D1 of the first oil guide body along the thickness direction is 3mm, the maximum dimension D2 of the second oil guide body along the thickness direction is 3mm, the recess depth D3 of the second oil guide body is 2mm, and the thickness ratio of the second oil guide body to the first oil guide body is 1: 1.

Example 6

The difference from the embodiment 1 is that: in the step (3) of example 6, different molds are used for injection molding, and the cross-sectional view of the atomizing assembly of example 6 can be seen in fig. 1, which is different from the atomizing assembly of example 1 in the thicknesses and the recess depths of the first oil guide body and the second oil guide body, specifically, in the atomizing assembly of example 5, the maximum dimension D1 of the first oil guide body along the thickness direction is 6mm, the maximum dimension D2 of the second oil guide body along the thickness direction is 3mm, the recess depth D3 of the second oil guide body is 2mm, and the thickness ratio of the second oil guide body to the first oil guide body is 1: 2.

Comparative example 1

A method of making an atomization assembly, comprising:

(1) preparing and feeding:

mixing a pore-forming agent, ceramic powder, a lubricant, a dispersant and a plasticizer, and then carrying out densification to obtain a feed, wherein the feed comprises the following raw materials in percentage by mass: 35 wt% of pore-forming agent 1 (specifically, 30 wt% of wood fiber and 70 wt% of bamboo fiber), 25 wt% of ceramic powder (specifically, 15 wt% of alumina and 85 wt% of silica), 30 wt% of lubricant (specifically, paraffin), 5 wt% of dispersant (specifically, stearic acid), and 5 wt% of plasticizer (specifically, dioctyl phthalate). The pore former had a particle size of 50 μm.

(2) Preparing a ceramic body:

the feed was directly injection molded by injection molding, and the dimensions and the shape of the mold-formed product were the same as those of example 1. The injection pressure was 1500kgf/cm²The injection time was 1 s. The pressure for maintaining the pressure is 1000kgf/cm²The dwell time was 10s and the mold temperature was 200 ℃.

(3) Sintering the ceramic blank at 1200 ℃ for 2h to obtain porous ceramic, silk-screening a heating circuit on the surface of the porous ceramic, and sintering in an atmosphere furnace to obtain the atomization assembly.

The structural schematic diagram of the atomization assembly obtained in comparative example 1 is shown in fig. 8, and fig. 8 is a cross-sectional schematic diagram of the atomization assembly provided in comparative example 1 of the present application, wherein the atomization assembly includes a porous ceramic body 10 and a heating body 20. In the atomization assembly of comparative example 1, the maximum dimension D1 of the porous ceramic body in the thickness direction was 5.5 mm.

Comparative example 2

The difference from example 1 is that in the atomizing assembly of comparative example 2, the second oil guide does not have a depressed structure, and the first oil guide does not have an embedded portion. Referring to fig. 9, fig. 9 is a schematic structural diagram of an atomizing assembly according to comparative example 2 of the present application, wherein the atomizing assembly includes a first oil guide body 10, a second oil guide body 20, and a heating body 30, and contact surfaces of the first oil guide body 10 and the second oil guide body 20 are in a planar structure. In the atomizing assembly of comparative example 2, the maximum dimension D1 of the first oil guide body in the thickness direction was 4.5mm, the maximum dimension D2 of the second oil guide body in the thickness direction was 3mm, and the ratio of the thickness of the second oil guide body to that of the first oil guide body was 1: 1.5.

Comparative example 3

Compared with the atomization assembly structure of example 1, the atomization assembly of comparative example 3 only contains the second oil guide body and the heating body, i.e., the position of the first oil guide body in the atomization assembly of example 1 is a hollow structure in the atomization assembly of comparative example 3.

The preparation process of the ceramic body comprises the following steps:

the second feed of example 1 was used for injection molding, and a ceramic body was obtained by mold 1 and mold 2. The injection pressure was 1500kgf/mm²The injection time was 1 s. The pressure for maintaining the pressure is 1000kgf/mm²The dwell time was 10s and the mold temperature was 200 ℃.

Sintering the ceramic blank body at the sintering temperature of 1200 ℃ for 2h to obtain a porous ceramic body, silk-screening a heating circuit on the surface of the porous ceramic body, and sintering in an atmosphere furnace to obtain the atomization assembly.

In the atomization assembly of comparative example 3, the maximum dimension D1 of the porous ceramic body in the thickness direction was 4.5 mm.

Comparative example 4

The difference from comparative example 2 is that: in step (3) of comparative example 4, injection molding is performed using different molds, and a cross-sectional view of the atomization assembly of comparative example 4 can be seen in fig. 8, which is different from the atomization assembly of comparative example 2 in the thicknesses of the first oil guide body and the second oil guide body, specifically, in the atomization assembly of comparative example 4, the maximum dimension D1 of the first oil guide body in the thickness direction is 3mm, the maximum dimension D2 of the second oil guide body in the thickness direction is 3mm, and the ratio of the thickness of the second oil guide body to the thickness of the first oil guide body is 1: 1.

Effects of the embodiment

To verify the performance of the atomization assembly made by the present application, an effect example is also provided.

(1) The pore size distribution of the atomization assembly is represented by a mercury intrusion method, and the specific test method comprises the following steps: the atomization assemblies of examples 1-6 and comparative examples 1-4 were placed in a test chamber, the test apparatus was opened to pressurize and press mercury into the pores of the sample, and pore size data were obtained according to the mercury content and pressure variation curves. See table 1 for pore size data for the atomization assemblies of examples 1-6 and comparative examples 1-4.

(2) The method for measuring the porosity of the atomizing assembly by using the intelligent analysis system method for the porosity of the porous ceramic atomizing core of the electronic cigarette comprises the following specific test methods: the atomization assemblies of examples 1-6 and comparative examples 1-4 were measured for dry weight on the measurement tray of the apparatus and placed in a vacuum apparatus for evacuation to allow water to enter the product. And then the atomization component is placed into water to measure the water weight of the saturated sample, and then the empty weight of the saturated sample is measured. Porosity results were obtained by systematic analysis. See table 1 for the porosities of the atomization assemblies of examples 1-6 and comparative examples 1-4.

(3) The method for testing the oil guiding capacity of the electronic cigarette atomizer is used for measuring the oil guiding speed of the atomizing assembly, and the specific test method comprises the following steps: the atomization assemblies of examples 1-6 and comparative examples 1-4 were placed on a precision electronic balance and 1 drop of tobacco tar was dripped with a needle onto a porous ceramic atomizer and timed. And stopping timing when all the oil drops penetrate into the sample, and calculating the oil guiding speed according to the weight/time of the tobacco tar. The oil delivery rates of the atomization assemblies of examples 1-6 and comparative examples 1-4 are shown in Table 2.

(4) The crushing strength of the atomization component is measured by using an extrusion test method, and the specific test method comprises the following steps: the atomization components of examples 1 to 6 and comparative examples 1 to 4 were placed in a special jig, and an extrusion test was performed using a universal testing machine, and when the product was broken and the test was stopped, the crush strength was obtained as the ratio of the maximum force to the area of force applied. The crush strengths of the atomization assemblies of examples 1-6 and comparative examples 1-4 are shown in table 2.

(5) Assembling the sample with an oil cup, a support, an electrode and the like, performing simulated normal suction on the sample for 30 times, and checking whether the oil leakage phenomenon exists around the sample. See table 2 for oil leakage for atomization assemblies of examples 1-6 and comparative examples 1-4.

TABLE 1 structural parameter Table for atomizing assemblies of examples 1-6 and comparative examples 1-4

Wherein the pore size distribution D of the first oil guide body_50μm-200μmThe ratio of the number of holes with the aperture of 50-200 mu m to the number of all holes in the first oil guide body is referred to; pore size distribution D of the second oil-conducting body_5μm-30μmRefers to the ratio of the number of holes with the aperture of 5-30 μm to the total number of holes in the second oil guide body.

TABLE 2 tables of Performance parameters for atomizing assemblies of examples 1-6 and comparative examples 1-4

From tables 1 and 2, it can be seen that: the atomization assembly of the comparative example 1 has no gradient pore size and porosity distribution, the oil guide speed of the atomization assembly is too high, the phenomenon of oil leakage occurs, and the crushing strength of the atomization assembly is also low; the contact surface of the first oil guide body and the second oil guide body of the atomization assembly in the comparative example 2 is a plane structure, and the oil guide speed of the atomization assembly is low; the atomizing assembly of the comparative example 3 has a hollow structure, the crushing strength of the atomizing assembly is low, the oil guiding speed is too high, and the atomizing assembly has liquid leakage, so that the atomizing effect is poor; in the atomization assembly of the comparative example 4, the thickness ratio of the second oil guide body to the first oil guide body is 1:1, and the oil guide rate is relatively higher than that of the comparative example 2, so that the atomization effect is improved, but compared with the atomization assembly of the example 5, because the second oil guide body in the atomization assembly of the comparative example 4 does not have a concave structure, the oil guide speed is still lower than that of the atomization assembly of the example 5. The atomizing subassembly that this application embodiment provided has moderate oily speed of leading and higher crushing intensity, and the good atomization effect of atomizer can be realized to the condition that the product does not have the oil leak to make the atomizer have longer life.

In order to further embody the beneficial effects of the present application, the atomization components of examples 1 to 6 and comparative examples 1 to 4 were respectively assembled with the support, the oil cup, and the like and connected to a circuit (specifically, a power supply was connected through both ends of the heating element), the resistances of the heating elements were all 1.5 Ω, the output voltage was controlled to be 4V, under the condition that the inner cavity of the atomization core was always filled with the tobacco tar, the circulation heating was performed for 300 times, each heating was performed for 1s, and the interval time was 5 s. The smoke concentration of the atomization assembly is obtained through testing of an electronic cigarette laser concentration instrument, and the generated smoke concentration is judged according to the intensity of laser received by a receiving end of the electronic cigarette laser concentration instrument. The atomization effect of the atomization assemblies of examples 1-6 and comparative examples 1-4 is shown in table 3.

Table 3 atomization effect of the atomization assemblies of examples 1-6 and comparative examples 1-4

From table 3 it can be seen that: the atomization assemblies of comparative examples 1-4 showed significant carbon deposition within 200 cycles of heating and a significant drop in smoke concentration after 300 cycles of heating. The atomization assembly provided by the embodiment of the application generates carbon deposition after being heated circularly for more than 250 times, and the smoke concentration is still more than 60% after being heated circularly for 300 times. The above result shows that the atomization assembly provided by the application has a stable excellent atomization effect and is suitable for long time and not easy to deposit carbon.

The foregoing is illustrative of the preferred embodiments of the present application and is not to be construed as limiting the scope of the application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, several improvements and modifications can be made, and these improvements and modifications are also considered to be within the scope of the present application.

Claims

1. An atomization assembly is characterized by comprising a first oil guide body, a second oil guide body and a heating body, wherein the first oil guide body and the second oil guide body are both porous ceramic bodies, the first oil guide body is positioned at a liquid suction end of the atomization assembly, and the heating body is positioned at an atomization end of the atomization assembly;

2. The atomizing assembly of claim 1, wherein the first oil-conducting body is partially embedded in the second oil-conducting body, the first oil-conducting body including an embedded portion embedded in the recessed feature of the second oil-conducting body, the embedded portion cooperating with the recessed feature, the embedded portion completely filling the recessed feature.

3. The atomizing assembly of claim 1, wherein the first oil-conducting body is entirely embedded in the recessed structure of the second oil-conducting body, the first oil-conducting body is engaged with the recessed structure, and the first oil-conducting body completely fills the recessed structure.

4. The atomizing assembly of claim 1, wherein the first oil-conducting body is entirely embedded in the recessed structure of the second oil-conducting body, the first oil-conducting body is mated with the recessed structure, and the first oil-conducting body partially fills the recessed structure.

5. The atomizing assembly of any one of claims 1-4, wherein the recessed features are singular or plural.

6. The atomizing assembly of claim 5, wherein the recessed feature is located in a central portion of the second oil guide body when the recessed feature is singular.

7. The atomizing assembly of any one of claims 1-4, wherein the recessed feature has a cross-sectional area that is less than that of the cross-sectional areaOr equal to 20mm²。

8. The atomizing assembly of any one of claims 1-4, wherein the average pore size of the first oil-conducting body is greater than or equal to the average pore size of the second oil-conducting body.

9. The atomizing assembly of any one of claims 1 to 4, wherein the number of pores having a pore diameter of greater than 20 μm and less than or equal to 100 μm in the first oil guide body is 90% or more.

10. The atomizing assembly of any one of claims 1 to 4, wherein the number of pores having a pore diameter of greater than 10 μm and less than or equal to 30 μm in the second oil guide body is 90% or more.

11. The atomizing assembly of any one of claims 1-4, wherein the porosity of the first oil-conducting body is greater than or equal to the porosity of the second oil-conducting body.

12. The atomizing assembly of any one of claims 1-4, wherein the first oil-conducting body has a porosity of from 40% to 80%.

13. The atomizing assembly of any one of claims 1-4, wherein the second oil-conducting body has a porosity of 20% to 60%.

14. The atomizing assembly of any one of claims 1-4, wherein the first oil guide body has a maximum dimension in the thickness direction of 0.5mm to 3 mm; the maximum size of the second oil guide body along the thickness direction is 0.5mm-3 mm.

15. The atomizing assembly of any one of claims 1 to 4, wherein the ratio of the largest dimension of the second oil-conducting body in the thickness direction to the largest dimension of the first oil-conducting body in the thickness direction is 1: (0.8-1.5).

16. The atomizing assembly of any one of claims 1-4, wherein the recessed features in the second oil guide body have a depth of from 0.5mm to 2 mm.

17. The atomizing assembly of claim 1, wherein the heating body comprises any one of a heating coil or a heating mesh.

18. A nebulizer, comprising an oil storage assembly and a nebulizing assembly according to any one of claims 1-17; the oil storage assembly comprises an oil storage cavity, and the oil storage cavity is in direct contact with the liquid suction end of the atomization assembly.

19. An electronic atomisation device comprising a power supply and an atomiser as claimed in claim 18, the power supply being electrically connected to the atomiser and being arranged to power the atomiser.

20. An electronic cigarette, wherein the electronic cigarette comprises the electronic vaping device of claim 19.