CN114831352A

CN114831352A - Electronic atomization device, atomizer, atomization core and manufacturing method of atomization core

Info

Publication number: CN114831352A
Application number: CN202210210865.5A
Authority: CN
Inventors: 刘望生; 杜贤武; 夏慕楠; 龙继才; 周宏明; 李日红
Original assignee: Hainan Moore Brothers Technology Co Ltd
Current assignee: Hainan Moore Brothers Technology Co Ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-08-02
Also published as: WO2023165208A1

Abstract

The application provides an electronic atomization device, an atomizer, an atomization core and a manufacturing method of the atomization core. The atomizing core comprises a liquid guide part and a heating part, the liquid guide part is provided with an atomizing surface and a liquid absorbing surface, and the matrix to be atomized is transmitted to the atomizing surface from the liquid absorbing surface; the heating piece is arranged on the atomizing surface and used for heating and atomizing the substrate to be atomized; wherein, the drain spare includes infrared radiation portion, and infrared radiation portion has the atomizing face, and infrared radiation portion is used for absorbing the heat that generates heat the piece release to the matrix that waits to atomize in the drain spare is preheated to the radiation infrared ray. This application is through setting up infrared radiation portion on leading liquid spare, and the atomizing face is on infrared radiation portion surface, makes infrared radiation portion can absorb the heat that generates heat a release, and then radiation infrared ray to the outer wall or the surface of leading liquid spare in order to preheat the atomizing matrix of treating around the piece that generates heat, can not only improve the heat utilization rate that generates heat a piece, can also accelerate the transmission rate of treating atomizing matrix and prevent to generate heat a dry combustion method and promote the user and use the taste.

Description

Electronic atomization device, atomizer, atomization core and manufacturing method of atomization core

Technical Field

The application relates to the technical field of electronic atomizers, in particular to an electronic atomizing device, an atomizer, an atomizing core and a manufacturing method of the atomizing core.

Background

The aerosol generated by burning the substrate to be atomized contains dozens of carcinogens, such as tar, which can cause great harm to human health, and the aerosol is diffused in the air to form harmful substances, so that the surrounding crowd can also cause harm to the human body after inhaling. Therefore, in order to meet the needs of some users, electronic atomization devices are on the market.

The atomizing core of current electronic atomization device is inefficient to the atomizing of high viscosity atomizing matrix, and on the other hand, current atomizing core product has atomizing core inner wall or surperficial heating element temperature problem on the high side when atomizing high viscosity atomizing matrix, and this will bring the user relatively poor taste experience, can take place to dry to burn even and produce miscellaneous gas, burnt flavor etc..

Disclosure of Invention

The technical problem that this application mainly solved provides an electron atomizing device, atomizer, atomizing core and manufacturing method of atomizing core thereof, solves the problem that high viscosity atomizing matrix atomization efficiency is low and the user uses the taste poor among the prior art.

In order to solve the above technical problem, the first technical solution adopted by the present application is: there is provided an atomizing core comprising: the liquid guide piece is provided with an atomizing surface and a liquid absorbing surface, and the matrix to be atomized is transmitted to the atomizing surface from the liquid absorbing surface; the heating piece is arranged on the atomizing surface and used for heating and atomizing the substrate to be atomized; wherein, the drain spare includes infrared radiation portion, and infrared radiation portion has the atomizing face, and infrared radiation portion is used for absorbing the heat that generates heat the piece release to the matrix that waits to atomize in the drain spare is preheated to the radiation infrared ray.

Wherein the infrared radiation section includes a porous infrared base body as the infrared radiation section. The thickness of the porous infrared substrate is 0.2 mm to 3 mm.

The liquid guide piece further comprises a porous non-infrared base body, the porous non-infrared base body is fixedly connected with the infrared radiation part, the surface, far away from the infrared radiation part, of the porous non-infrared base body serves as a liquid absorption surface, and the surface, far away from the porous non-infrared base body, of the infrared radiation part serves as an atomization surface. The infrared radiation part is a porous infrared substrate or an infrared radiation coating. The thickness of the infrared radiation part is 0.01-0.5 mm, and the thickness of the porous non-infrared substrate is 0.2-3 mm. The infrared radiation part is made of porous infrared ceramics, the porous non-infrared substrate is made of porous non-infrared ceramics, the pore diameters of the porous infrared ceramics and the porous non-infrared ceramics are 10-100 micrometers, and the porosity is 40-70%.

Wherein, the liquid guide piece is a hollow tubular body, one of the inner side surface and the outer side surface of the hollow tubular body is used as an atomizing surface, and the other is used as a liquid absorbing surface; or the liquid guide piece is a plate body, one surface of two opposite surfaces of the plate body is used as an atomizing surface, and the other surface of the plate body is used as a liquid absorbing surface.

Wherein the radiation temperature of the infrared radiation part is 45-95 ℃.

The infrared radiation part is a porous infrared substrate, and the material for forming the porous infrared substrate comprises first powder and a first solvent, wherein the first powder comprises infrared ceramic powder, a first sintering aid and a first pore-forming agent; the first sintering aid accounts for 1-40% of the mass of the first powder, and the mass percentage of the first pore-forming agent is not more than twice of the total mass of the infrared ceramic powder and the first sintering aid; the first solvent comprises a first dissolving agent, a dispersing agent, a first binder, a first plasticizer and a coupling agent, wherein the first dissolving agent accounts for 80-150% of the mass of the first powder; the first binder accounts for 5 to 20 percent of the mass of the first powder; the mass percentage of the dispersant in the first powder is 0.1-5%; the first plasticizer accounts for 40-70% of the mass of the first binder; the coupling agent accounts for 0-2% of the mass of the first powder. Wherein the content of the first and second substances,

the material for forming the porous infrared substrate also comprises second powder and an auxiliary agent, wherein the second powder accounts for 55-80% of the total mass of the second powder and the auxiliary agent, and the second powder comprises infrared ceramic powder, a second sintering auxiliary agent and a second pore-forming agent; the second sintering aid accounts for 2-40% of the mass of the second powder, and the second pore-forming agent accounts for 5-80% of the mass of the second powder; the auxiliary agent comprises a framework forming agent, a second surfactant, a second plasticizer and a second binder, wherein the framework forming agent accounts for 50-90% of the auxiliary agent by mass; the second surfactant accounts for 1 to 10 percent of the mass of the auxiliary agent; the second plasticizer accounts for 1 to 20 percent of the mass of the auxiliary agent; the second adhesive accounts for 10-40% of the mass of the second powder.

The infrared radiation part is an infrared radiation coating, the material for forming the infrared radiation coating comprises third powder and a third solvent, and the third powder comprises infrared ceramic powder, a binding phase and a third pore-forming agent; the mass percentage of the binding phase in the third powder is 1-40%, and the mass percentage of the third pore-forming agent is not more than one time of the total mass of the infrared ceramic powder and the binding phase; the third solvent includes a third dissolving agent, a third thickener, a third surfactant, a thixotropic agent and a casting control agent; the third dissolving agent accounts for 55 to 99 percent of the mass of the third solvent; the third thickener accounts for 1 to 20 percent of the mass of the third solvent; the third surfactant accounts for 1 to 10 percent of the third solvent by mass; the thixotropic agent accounts for 0.1 to 5 percent of the mass of the third solvent; the casting control agent accounts for 0.1 to 10 percent of the third solvent by mass.

In order to solve the above technical problem, the second technical solution adopted by the present application is: an atomizer is provided, which comprises the atomizing core.

In order to solve the above technical problem, the third technical solution adopted by the present application is: an electronic atomizer is provided, which comprises a power supply assembly and the atomizer, wherein the power supply assembly supplies power to the atomizer.

In order to solve the above technical problem, a fourth technical solution adopted by the present application is: provided is a method for manufacturing an atomizing core, which comprises:

preparing a porous sheet layer green body, wherein the porous sheet layer green body comprises a porous infrared layer;

preparing a heating part prefabricated body on the porous infrared layer;

forming a first layer structure on the porous sheet layer green blank with the heating part preform on a mould;

preparing a second layer structure on one side of the first layer structure far away from the heating part prefabricated body;

and removing the mold, and sintering the first layer structure, the second layer structure and the heating part preform integrally.

Wherein the step of preparing the porous sheet layer green body comprises:

preparing raw materials for forming the porous infrared layer into a first slurry;

and preparing the first slurry into a porous infrared layer by a casting process.

Wherein the step of preparing the porous sheet layer green body comprises:

preparing a raw material for forming a porous non-infrared layer into a first slurry;

preparing the first slurry into a porous non-infrared layer through a tape casting process;

an infrared radiation coating is applied to one surface of the porous non-infrared layer to form a porous infrared layer.

Wherein the step of preparing the heating member preform on the porous infrared layer comprises:

the heating part preform is prepared by any one of sputtering, evaporation, silk-screen printing, coating and ink-jet printing.

Wherein the step of forming the porous sheet green body into the first layer structure on the mold comprises:

winding the porous sheet layer green body on a mould to form a prefabricated inner-layer pipe, wherein a heating part prefabricated body is arranged on the inner wall of the prefabricated inner-layer pipe;

the step of preparing the second layer structure on the side of the first layer structure far away from the heating part prefabricated body comprises the following steps:

and forming a prefabricated outer pipe on the outer side of the predicted inner pipe.

flatly paving the porous sheet layer green blank in a mold to form a first layer structure, wherein the heating part prefabricated body is arranged on the surface of the first layer structure facing the bottom surface of the mold;

and forming a second layer structure on one side of the first layer structure far away from the heating part prefabricated body.

Wherein, the step of preparing the second layer structure at the side of the first layer structure far away from the heating part prefabricated body comprises the following steps:

preparing raw materials for forming a second layer structure into a second slurry;

and injecting a second slurry into one side of the first layer structure, which is far away from the heating part prefabricated body, and tightly attaching the inner wall surface of the second layer structure to the surface of one side of the first layer structure, which is far away from the heating part prefabricated body.

Wherein, get rid of the mould, the step of sintering first layer structure, second floor structure and the whole of the piece preform that generates heat includes:

standing the second layer structure, the first layer structure and the heating part preform in the mold at normal pressure;

removing the mould along the longitudinal axis of the second layer structure and/or the first layer structure;

carrying out glue discharging treatment on the second layer structure, the first layer structure and the heating part prefabricated body integrally at the temperature of 350-800 ℃;

and sintering the first layer structure, the second layer structure and the heating part preform at 850-1500 ℃ under normal pressure in an air atmosphere.

The raw materials for forming the first slurry comprise first powder and a first solvent, wherein the first powder comprises infrared ceramic powder, a first sintering aid and a first pore-forming agent; the first sintering aid accounts for 1-40% of the mass of the first powder, and the mass percentage of the first pore-forming agent is not more than twice of the total mass of the infrared ceramic powder and the first sintering aid; the first solvent comprises a first dissolving agent, a dispersing agent, a first binder, a first plasticizer and a coupling agent, wherein the first dissolving agent accounts for 80-150% of the mass of the first powder; the first binder accounts for 5 to 20 percent of the mass of the first powder; the mass percentage of the dispersant in the first powder is 0.1-5%; the first plasticizer accounts for 40-70% of the mass of the first binder; the coupling agent accounts for 0-2% of the mass of the first powder.

The raw materials for forming the infrared radiation coating comprise third powder and a third solvent, wherein the third powder comprises infrared ceramic powder, a binding phase and a third pore-forming agent; the mass percentage of the binding phase in the third powder is 1-40%, and the mass percentage of the third pore-forming agent is not more than one time of the total mass of the infrared ceramic powder and the binding phase; the third solvent includes a third dissolving agent, a third thickener, a third surfactant, a thixotropic agent and a casting control agent; the third dissolving agent accounts for 55 to 99 percent of the mass of the third solvent; the third thickener accounts for 1 to 20 percent of the mass of the third solvent; the third surfactant accounts for 1 to 10 percent of the mass of the third solvent; the thixotropic agent accounts for 0.1 to 5 percent of the mass of the third solvent; the percentage of the flow casting control agent in the third solvent is 0.1-10%.

The raw materials for forming the second slurry comprise second powder and an auxiliary agent, the second powder accounts for 55-80% of the total mass of the second powder and the auxiliary agent, and the second powder comprises infrared ceramic powder, a second sintering auxiliary agent and a second pore-forming agent; the second sintering aid accounts for 2-40% of the mass of the second powder, and the second pore-forming agent accounts for 5-80% of the mass of the second powder; the auxiliary agent comprises a framework forming agent, a second surfactant, a second plasticizer and a second binder, wherein the framework forming agent accounts for 50-90% of the auxiliary agent by mass; the second surfactant accounts for 1 to 10 percent of the mass of the auxiliary agent; the second plasticizer accounts for 1 to 20 percent of the mass of the auxiliary agent; the second adhesive accounts for 10-40% of the mass of the second powder.

The beneficial effect of this application is: the electronic atomization device comprises an atomization core, a liquid guide part and a heating part, wherein the atomization core comprises a liquid guide part and a liquid absorption surface; the heating piece is arranged on the atomizing surface and used for heating and atomizing the substrate to be atomized; wherein, the drain spare includes infrared radiation portion, and infrared radiation portion has the atomizing face, and infrared radiation portion is used for absorbing the heat that generates heat the piece release to the matrix that waits to atomize in the drain spare is preheated to the radiation infrared ray. According to the liquid guiding device, the infrared radiation part is arranged on the liquid guiding part, and the atomization surface is arranged on the surface of the infrared radiation part, so that the infrared radiation part can absorb heat released by the heating part, and then infrared rays are radiated to the outer wall or the outer surface of the liquid guiding part to preheat a to-be-atomized substrate around the heating part, the heat utilization rate of the heating part can be improved, the transmission rate of the to-be-atomized substrate can be increased, the liquid supply amount of the to-be-atomized substrate transmitted to the atomization surface is increased, and the dry burning phenomenon of the atomization core is effectively avoided; the content of aerosol formed after the substrate to be atomized is atomized can be increased, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of an electronic atomization device provided in the present application;

FIG. 2 is a schematic structural diagram of an embodiment of an atomizer in the electronic atomizer provided in the present application;

FIG. 3 is a schematic structural view of an embodiment of an atomizing core provided herein;

FIG. 4 is a schematic structural view of another embodiment of an atomizing core provided herein;

FIG. 5 is a schematic illustration in longitudinal cross-sectional configuration of the first embodiment of the atomizing core provided in FIG. 3;

FIG. 6 is a schematic structural view of a first embodiment of the atomizing core provided in FIG. 4;

FIG. 7 is a schematic illustration in longitudinal cross-sectional configuration of a second embodiment of the atomizing core provided in FIG. 3;

FIG. 8 is a schematic structural view of a second embodiment of the atomizing core provided in FIG. 4;

FIG. 9 is a schematic illustration in longitudinal cross-sectional configuration of a third embodiment of the atomizing core provided in FIG. 3;

FIG. 10 is a schematic structural view of a third embodiment of the atomizing core provided in FIG. 4;

FIG. 11 is a schematic flow chart diagram illustrating one embodiment of a method of making an atomizing core provided herein;

FIG. 12(a) is a schematic structural view of the first embodiment corresponding to step S1 of the method of manufacturing the atomizing core provided in FIG. 11;

FIG. 12(b) is a schematic structural view of a second embodiment corresponding to step S1 of the method of manufacturing the atomizing core provided in FIG. 11;

FIG. 13(a) is a schematic structural view of the first embodiment corresponding to step S2 of the method of manufacturing the atomizing core provided in FIG. 11;

FIG. 13(b) is a schematic structural view of a second embodiment corresponding to step S2 of the method of making the atomizing core provided in FIG. 11;

FIG. 14(a) is a schematic structural view of the first embodiment corresponding to step S3 of the method of manufacturing the atomizing core provided in FIG. 11;

FIG. 14(b) is a schematic structural view of a second embodiment corresponding to step S3 of the method of making the atomizing core provided in FIG. 11;

FIG. 15(a) is a schematic structural view of the first embodiment corresponding to step S4 of the method of manufacturing the atomizing core provided in FIG. 11;

fig. 15(b) is a schematic structural view of the second embodiment corresponding to step S4 of the method for manufacturing the atomizing core provided in fig. 11.

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 terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. All directional indicators in the embodiments of the present application (such as inner, outer, upper, lower, left, right, front, and rear … …) are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

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 application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an electronic atomization device provided in the present application.

As shown in fig. 1, the electronic atomization device 100 may be used for atomization of a liquid substrate. The electronic atomizer 100 includes an atomizer 1 and a power supply module 2 connected to each other. The atomizer 1 is used for storing a substrate to be atomized and atomizing the substrate to be atomized to form aerosol which can be inhaled by a user, and the substrate to be atomized can be liquid substrates such as liquid medicine, plant grass liquid and the like; the atomizer 1 can be used in various fields, such as medical, cosmetic, electronic aerosolization, etc. The power supply module 2 includes a battery (not shown), an airflow sensor (not shown), a controller (not shown), and the like; the battery is used to power the nebulizer 1 so that the nebulizer 1 can nebulize a substrate to be nebulized to form an aerosol; the airflow sensor is used for detecting airflow changes in the electronic atomization device 100, and the controller starts the electronic atomization device 100 according to the airflow changes detected by the airflow sensor. The atomizer 1 and the power supply module 2 may be fixed, for example, welded, integrally formed, etc.; or can be detachably connected, such as a snap connection, a threaded connection, a magnetic connection and the like, and is designed according to specific needs. Of course, the electronic atomization device 100 also includes other components in the existing electronic atomization device 100, such as a microphone, a bracket, and the like, and the specific structures and functions of these components are the same as or similar to those in the prior art, which can be referred to in the prior art specifically, and are not described in detail here.

Referring to fig. 2, fig. 2 is a schematic structural diagram of an atomizer in the electronic atomizer according to an embodiment of the present disclosure.

As shown in fig. 2, the atomizer 1 includes a mouthpiece 10, a housing 11, and an atomizing core 12. The mouthpiece 10 is attached to the housing 11. The user draws aerosol from the mouthpiece 10. The housing 11 has a reservoir 111 and an air outlet channel 13. The reservoir 111 is used to store the substrate to be atomized. The liquid storage cavity 111 has a liquid outlet (not shown), and the substrate to be atomized in the liquid storage cavity 111 flows into the atomizing core 12 from the liquid outlet, so that the atomizing core 12 can be heated and atomized. The atomizing core 12 is disposed at the liquid outlet of the liquid storage cavity 111. The atomizing core 12 is used for atomizing the substrate to be atomized stored in the liquid storage chamber 111. The air outlet channel 13 communicates with the mouthpiece 10. In one embodiment, the atomizing core 12 is at least partially accommodated in the housing 11, the atomizing core 12 is sleeved with an atomizing cavity 14, and the atomizing cavity 14 is communicated with the air outlet channel 13. The atomizing core 12 heats the aerosol formed by atomizing the substrate to be atomized to the mouthpiece 10 through the air outlet channel 13 to be inhaled by the user. Wherein the atomizing core 12 is electrically connected to the power supply assembly 2 for heat atomizing the substrate to be atomized. In the present embodiment, the cross-sectional area of the housing 11 perpendicular to the central axis of the atomizer 1 is circular, and it should be understood that in other embodiments, the cross-sectional area of the housing 11 perpendicular to the central axis of the atomizer 1 may be rectangular, elliptical, trapezoidal, triangular, and other shapes, and is designed according to specific requirements.

Referring to fig. 3 and 4, fig. 3 is a schematic structural view of an embodiment of an atomizing core provided in the present application, and fig. 4 is a schematic structural view of another embodiment of an atomizing core provided in the present application.

The atomizing core 12 includes a liquid guiding member 20 and a heat generating member 30 disposed on the liquid guiding member 20. Liquid guide 20 has atomizing surface 21 and liquid-absorbing surface 22. The liquid guide member 20 transmits the substrate to be atomized from the liquid suction surface 22 to the atomization surface 21, and the substrate is heated and atomized by the heat generating member 30 to form aerosol.

The heat generating member 30 is disposed on the atomizing surface 21 of the liquid guiding member 20, and the heat generating member 30 is used for heating and atomizing the substrate to be atomized, which is guided to the atomizing surface 21. In an embodiment, the heat generating member 30 includes an S-shaped heat emitting circuit, and may also be a ring-shaped heat emitting circuit. The heating member 30 includes a heating film, and the metal component of the heating film includes at least one of platinum, gold, silver palladium, and silver platinum. The heating member 30 further includes an electrode 25, and the electrode 25 is connected to both ends of the heating member 30.

The liquid guide 20 includes an infrared radiation portion 23, and the atomization surface 21 is provided on the infrared radiation portion 23 of the liquid guide 20. By providing the infrared radiation portion 23, the heat loss of the heat generating member 30 can be reduced, and the heat energy utilization rate can be improved. The infrared radiation part 23 can absorb heat released from the heat generating member 30 and radiate infrared rays to preheat the substrate to be atomized in the liquid guiding member 20. The irradiation temperature of the infrared radiation part 23 is 45 to 95 ℃ for better preheating the substrate to be atomized in the liquid guide member 20. After the high-viscosity substrate to be atomized in the liquid guiding part 20 is preheated, the temperature of the high-viscosity substrate to be atomized is increased, and the viscosity of the substrate to be atomized is reduced, so that the transmission rate of the substrate to be atomized is increased, the substrate to be atomized can reach the atomizing surface 21 more quickly and be heated and atomized by the heating part 30, that is, the atomizing efficiency is high, the aerosol amount is increased, and the use taste of a user is improved; meanwhile, after the atomized matrix is sufficient, the atomized matrix on the atomizing surface 21 can be ensured to be continuously heated and atomized by the heating piece 30, the temperature rise of the heating piece 30 can be avoided, the risk of dry burning is reduced, and the smoking taste is pure.

The liquid guide 20 includes at least an infrared radiation section 23. In one embodiment, the liquid guide 20 includes only the infrared radiation portion 23. In another embodiment, the liquid guide 20 includes an infrared radiating portion 23 and a porous non-infrared substrate 24 disposed on a side of the infrared radiating portion 23 remote from the atomizing surface 21. The infrared radiation part 23 is made of porous infrared ceramics or an infrared radiation coating 232, the porous non-infrared substrate 24 is made of porous non-infrared ceramics, the pore diameters of the porous infrared ceramics and the porous non-infrared ceramics are both 10 micrometers to 100 micrometers, and the porosity is 40 percent to 70 percent.

In one embodiment, as shown in fig. 3, the liquid guiding member 20 can be a hollow tubular body, such as a hollow cylinder, one of the inner surface and the outer surface of the hollow tubular body is an atomizing surface 21, the other is a liquid absorbing surface 22, and the heat generating member 30 is disposed on the atomizing surface 21. In this embodiment, the inner surface of the hollow tubular body is used as the atomizing surface 21, the outer surface of the hollow tubular body is used as the liquid absorbing surface 22, and the heat generating member 30 is provided on the inner wall surface of the hollow tubular body. The atomizing surface 21 of the hollow tubular body is enclosed to form an atomizing chamber 14. The electrode 25 is led out from one end of the atomizing chamber 30 far away from the air outlet channel 13. In other embodiments, the electrodes 25 may be led out from both end surfaces perpendicular to the hollow tubular body atomizing surface 21 and the liquid suction surface 22. In another embodiment, as shown in fig. 4, the liquid guiding member 20 may be a plate, the heat generating member 30 is disposed on one surface of the plate, the surface of the plate on which the heat generating member 30 is disposed is used as the atomizing surface 21, and the surface of the plate opposite to the atomizing surface 21 is used as the liquid absorbing surface 22.

Referring to fig. 5 and 6, fig. 5 is a schematic longitudinal sectional view of the first embodiment of the atomizing core provided in fig. 3; fig. 6 is a schematic structural view of a first embodiment of the atomizing core provided in fig. 4.

Specifically, the liquid guiding member 20 includes a first layer structure 50 and a second layer structure 60, and the first layer structure 50 and the second layer structure 60 are fixedly connected. The first layer structure 50 is disposed close to the heat generating member 30, that is, the surface of the first layer structure 50 away from the second layer structure 60 is the atomizing surface 21, and the surface of the second layer structure 60 away from the first layer structure 50 is the liquid absorbing surface 22. In a specific embodiment, the first layer structure 50 and the second layer structure 60 can be mated to each other, and the first layer structure 50 and the second layer structure 60 can be attached to each other after sintering to form a unitary structure.

In one embodiment, the liquid guide 20 includes an infrared radiating portion 23, and the infrared radiating portion 23 includes only the porous infrared substrate 231. That is, the first layer structure 50 and the second layer structure 60 are both porous infrared bases 231 and collectively function as the infrared radiation section 23. One surface of the porous infrared base 231 is provided with the heating element 30, the surface of the porous infrared base 231 provided with the heating element 30 is used as the atomizing surface 21, and the surface of the porous infrared base 231 opposite to the atomizing surface 21 is used as the liquid absorbing surface 22. The thickness of the infrared radiation part 23 is 0.2 mm to 3 mm, that is, the thickness of the liquid guide 20 is 0.2 mm to 3 mm, that is, the distance between the atomizing surface 21 of the porous infrared base 231 and the liquid absorption surface 22 opposite to the atomizing surface 21 is 0.2 mm to 3 mm. When the thickness of the infrared radiation part 23 is too thin, the liquid guiding speed is affected too fast, so that the substrate to be atomized, which is transmitted to the atomization surface 21, is not heated and atomized by the heating element 30, and the phenomenon of 'liquid explosion' occurs. When the infrared radiation part 23 is too thick, the radiation penetrating power of infrared rays is weakened, so that the preheating effect of the infrared radiation part 23 is weakened; the preheating effect of the infrared radiation section 23 becomes poor and the transport efficiency of the high-viscosity substrate to be atomized is also affected.

In the present embodiment, the raw material forming the first layer structure 50 of the liquid guiding member 20 includes the first powder and the first solvent. That is, the raw material of the porous infrared base 231 forming the first layer structure 50 includes the first powder and the first solvent. The first powder comprises infrared ceramic powder, a first sintering aid and a first pore-forming agent; the first sintering aid accounts for 1-40% of the mass of the first powder, and the mass percentage of the first pore-forming agent is not more than twice of the total mass of the infrared ceramic powder and the first sintering aid; the first solvent comprises a first dissolving agent, a dispersing agent, a first binder, a first plasticizer and a coupling agent, wherein the first dissolving agent accounts for 80-150% of the mass of the first powder; the first binder accounts for 5 to 20 percent of the mass of the first powder; the mass percentage of the dispersant in the first powder is 0.1-5%; the first plasticizer accounts for 40-70% of the mass of the first binder; the coupling agent accounts for 0-2% of the mass of the first powder.

In one embodiment, the raw materials forming the first layer structure 50 of the liquid guiding member 20 include a first powder and a first solvent. The first solvent consists of absolute ethyl alcohol accounting for 25 percent of the total mass of the first solvent, isobutanol accounting for 30.5 percent of the total mass of the first solvent, butyl acetate accounting for 20 percent of the total mass of the first solvent, oleic acid dispersant accounting for 1 percent of the total mass of the first solvent, polyvinyl acetal binder accounting for 15 percent of the total mass of the first solvent, dioctyl phthalate accounting for 4 percent of the total mass of the first solvent, dibutyl phthalate accounting for 4 percent of the total mass of the first solvent and silane coupling agent accounting for 0.5 percent of the total mass of the first solvent.

In the present embodiment, the raw material forming the second layer structure 60 of the liquid guiding member 20 includes the second powder and the auxiliary agent. That is, the raw materials of the porous infrared base 231 forming the second layer structure 60 include the second powder and the auxiliary agent. The second powder accounts for 55-80% of the total mass of the second powder and the auxiliary agent, and comprises infrared ceramic powder, a second sintering auxiliary agent and a second pore-forming agent; the second sintering aid accounts for 2-40% of the mass of the second powder, and the second pore-forming agent accounts for 5-80% of the mass of the second powder; the auxiliary agent comprises a framework forming agent, a second surfactant, a second plasticizer and a second binder, wherein the framework forming agent accounts for 50-90% of the auxiliary agent by mass; the second surfactant accounts for 1 to 10 percent of the mass of the auxiliary agent; the second plasticizer accounts for 1 to 20 percent of the mass of the auxiliary agent; the second adhesive accounts for 10-40% of the mass of the second powder.

In one embodiment, the raw materials forming the second layer structure 60 of the fluid-conducting member 20 include a second powder and an auxiliary agent. The auxiliary agent consists of natural paraffin accounting for 65 percent of the total mass of the auxiliary agent, stearic acid accounting for 1 percent of the total mass of the auxiliary agent, phthalate plasticizer accounting for 10 percent of the total mass of the auxiliary agent, polyethylene accounting for 10 percent of the total mass of the auxiliary agent and ethylene-vinyl acetate copolymer accounting for 14 percent of the total mass of the auxiliary agent.

Referring to fig. 7 and 8, fig. 7 is a schematic longitudinal sectional view of a second embodiment of the atomizing core provided in fig. 3, and fig. 8 is a schematic structural view of the second embodiment of the atomizing core provided in fig. 4.

In one embodiment, the liquid guiding member 20 comprises an infrared radiation part 23 and a porous non-infrared substrate 24, the porous non-infrared substrate 24 is fixedly connected with the infrared radiation part 23, the surface of the porous non-infrared substrate 24 far away from the infrared radiation part 23 is used as a liquid absorption surface 22, and the surface of the infrared radiation part 23 far away from the porous non-infrared substrate 24 is used as an atomization surface 21. The infrared radiating section 23 is a porous infrared substrate 231 or an infrared radiating coating 232. Namely, the liquid guide member 20 comprises a porous non-infrared substrate 24 and a porous infrared substrate 231; or the fluid director 20 includes a porous non-infrared substrate 24 and an infrared radiation coating 232. That is, at least a portion of the first layer structure 50 is the infrared radiating section 23, and the second layer structure 60 is the porous non-infrared base 24. Wherein, the thickness of the infrared radiation part 23 is 0.01 mm to 0.5 mm. When the thickness of the infrared radiation portion 23 is too thin, the infrared radiation effect cannot be ensured, and when the thickness is too thick, the requirement on the manufacturing process is more severe and the cost is wasted. For example, it is disadvantageous that the infrared radiation section 23 is tightly wound around the mold. The thickness of the porous non-infrared substrate 24 is 0.2 mm to 3 mm. The too thin thickness of the porous non-infrared substrate 24 may affect the too fast liquid guiding speed, so that the substrate to be atomized, which is transmitted to the atomizing surface 21, is not too much to be preheated by the infrared radiation part 23 and heated and atomized by the heating element 30, and further the phenomenon of 'liquid explosion' occurs. When the porous non-infrared base 24 is too thick, the radiation penetration of infrared rays is weakened, thereby weakening the preheating effect of the infrared radiation section 23; the preheating effect of the infrared radiation part 23 becomes poor and the thickness of the porous non-infrared base 24 is too thick, which also affects the transmission efficiency of the high-viscosity substrate to be atomized, resulting in dry burning of the heat generating member 30.

In one embodiment, the first layer structure 50 serves as the infrared radiating portion 23 and the second layer structure 60 is a porous non-infrared substrate 24. Specifically, the liquid guide 20 includes a porous infrared substrate 231 and a porous non-infrared substrate 24. The heating member 30 is disposed on a surface of the porous infrared base 231, the porous non-infrared base 24 is disposed on a side of the porous infrared base 231 away from the heating member 30 and is fixedly connected with the porous infrared base 231, a surface of the porous non-infrared base 24 away from the porous infrared base 231 is used as the liquid absorption surface 22, and a surface of the porous infrared base 231 away from the porous non-infrared base 24 is provided with the heating member 30 and is used as the atomization surface 21. The thickness of the porous infrared substrate 231 is 0.01 mm to 0.5 mm, and the thickness of the porous non-infrared substrate 24 is 0.2 mm to 3 mm.

In the present embodiment, the raw material forming the first layer structure 50 of the liquid guiding member 30 includes the first powder and the first solvent. That is, the raw material of the porous infrared base 231 forming the first layer structure 50 includes the first powder and the first solvent.

The raw material forming the second layer structure 60 of the liquid guiding member 20 includes the fourth powder and the auxiliary agent. That is, the raw materials of the porous non-infrared base 24 forming the second layer structure 60 include the fourth powder and the auxiliary agent. The fourth powder accounts for 55-80% of the total mass of the fourth powder and the auxiliary agent, and comprises common ceramic powder, a second sintering auxiliary agent and a second pore-forming agent; the second sintering aid accounts for 2-40% of the mass of the fourth powder, and the second pore-forming agent accounts for 5-80% of the mass of the fourth powder; the auxiliary agent comprises a framework forming agent, a second surfactant, a second plasticizer and a second binder, wherein the framework forming agent accounts for 50-90% of the auxiliary agent by mass; the second surfactant accounts for 1 to 10 percent of the mass of the auxiliary agent; the second plasticizer accounts for 1 to 20 percent of the mass of the auxiliary agent; the second binder accounts for 10-40% of the fourth powder by mass. The additives for forming the porous non-infrared matrix 24 of the second layer 60 are the same as the additives in the raw materials for forming the porous infrared matrix 231 of the second layer 60 and will not be described in detail herein.

In a specific embodiment, the raw material forming the second layer structure 60 of the liquid guiding member 20 includes the fourth powder and the auxiliary agent. The auxiliary agent consists of natural paraffin accounting for 55 percent of the total mass of the auxiliary agent, polyethylene wax accounting for 15 percent of the total mass of the auxiliary agent, glycerol accounting for 2 percent of the total mass of the auxiliary agent, phthalate accounting for 2 percent of the total mass of the auxiliary agent, phosphate accounting for 6 percent of the total mass of the auxiliary agent, polystyrene accounting for 8 percent of the total mass of the auxiliary agent and an ethylene-ethyl acrylate copolymer accounting for 12 percent of the total mass of the auxiliary agent.

Referring to fig. 9 and 10, fig. 9 is a schematic longitudinal sectional structure view of a third embodiment of the atomizing core provided in fig. 3, and fig. 10 is a schematic structural view of the third embodiment of the atomizing core provided in fig. 4.

In a particular embodiment, the first layer structure 50 includes an infrared-radiating coating 232 and a porous non-infrared substrate 24. Wherein the infrared radiation coating 232 serves as the infrared radiation section 23 and the second layer structure 60 is a porous non-infrared substrate 24. The thickness of the infrared-radiating coating 232 is less than the thickness of the porous infrared substrate 231. Specifically, the fluid director 20 includes an infrared radiation coating 232 and a porous non-infrared substrate 24. The infrared radiation coating 232 is arranged on one surface of the porous non-infrared substrate 24, the surface of the porous non-infrared substrate 24, which is provided with the infrared radiation coating 232, is used as the atomizing surface 21, and the surface of the porous non-infrared substrate 24, which is far away from the infrared radiation coating 232, is used as the liquid absorption surface 22. The heat generating member 30 is provided on the atomizing surface 21. The thickness of the infrared radiation coating 232 is 0.01 mm to 0.5 mm and the thickness of the porous non-infrared substrate 24 is 0.2 mm to 3 mm.

In the present embodiment, the raw materials forming the infrared radiation coating 232 in the first layer structure 50 include the third powder and the third solvent. The third powder comprises infrared ceramic powder, a binding phase and a third pore-forming agent; the mass percentage of the binding phase in the third powder is 1-40%, and the mass percentage of the third pore-forming agent is not more than one time of the total mass of the infrared ceramic powder and the binding phase; the third solvent includes a third dissolving agent, a third thickener, a third surfactant, a thixotropic agent, and a casting control agent; the third dissolving agent accounts for 55 to 99 percent of the mass of the third solvent; the third thickener accounts for 1 to 20 percent of the mass of the third solvent; the third surfactant accounts for 1 to 10 percent of the third solvent by mass; the thixotropic agent accounts for 0.1 to 5 percent of the mass of the third solvent; the casting control agent accounts for 0.1 to 10 percent of the third solvent by mass.

In a particular embodiment, the raw materials forming the infrared-radiation coating 232 in the first layer structure 50 include a third powder and a third solvent. The third powder body consists of Zn-Mg-Al-Si cordierite system infrared ceramic powder accounting for 52 percent of the total mass of the third powder body, glass powder accounting for 20 percent of the total mass of the third powder body, kaolin accounting for 5 percent of the total mass of the third powder body, albite accounting for 5 percent of the total mass of the third powder body and starch accounting for 18 percent of the total mass of the third powder body. The third solvent is composed of terpineol with the mass percent of 60% of the total mass of the third solvent, butyl carbitol acetate with the mass percent of 22.5% of the total mass of the third solvent, tributyl citrate with the mass percent of 10% of the total mass of the third solvent, ethyl cellulose with the mass percent of 5% of the total mass of the third solvent, span 85 with the mass percent of 1.5% of the total mass of the third solvent, hydrogenated castor oil with the mass percent of 0.5% of the total mass of the third solvent and furoic acid with the mass percent of 0.5% of the total mass of the third solvent.

In this embodiment, the raw materials forming the porous non-infrared substrate 24 in the first layer structure 50 include a fifth powder and a first solvent, where the fifth powder includes a common ceramic powder, a first sintering aid, and a first pore-forming agent; the first sintering aid accounts for 1-40% of the fifth powder by mass, and the first pore-forming agent accounts for no more than two times of the total mass of the common ceramic powder and the first sintering aid; the first solvent comprises a first dissolving agent, a dispersing agent, a first binder, a first plasticizer and a coupling agent, wherein the first dissolving agent accounts for 80-150% of the fifth powder by mass; the first binder accounts for 5-20% of the fifth powder by mass; the dispersant accounts for 0.1 to 5 percent of the mass of the fifth powder; the first plasticizer accounts for 40-70% of the mass of the first binder; the coupling agent accounts for 0-2% of the fifth powder by mass.

In this embodiment, the raw materials forming the porous non-infrared matrix 24 in the second layer structure 60 include the fourth powder and the auxiliary agent.

In one embodiment, the materials of the infrared ceramic powder include cordierite system, spinel system, perovskite system, and magnetoplumbite system. And selecting proper material system powder of the infrared ceramic powder according to the stability of the emissivity of the material along with the change of temperature, the thermal expansion coefficient and the thermal conductivity. Wherein the cordierite system is Mg ₂ Al ₄ Si ₅ O ₁₈ As a host, Li ₂ O、ZnO、NiO、CoO、CuO、Fe ₂ O ₃ 、Cr ₂ O ₃ 、TiO ₂ 、MnO ₂ One or more transition metal oxides are doped, mixed and fired to form the catalyst; the spinel system is composed of MgO, MnO, NiO, ZnO, CuO and Al ₂ O ₃ 、Cr ₂ O ₃ 、Fe ₂ O ₃ 、MnO ₂ 、TiO ₂ One or more transition metal oxides in the raw materials are sintered in a high-temperature oxidation atmosphere to form the transition metal oxide; the perovskite series is prepared by one or more of trivalent rare metal oxides such as La, Sr, Pr, Eu and the like and transition metal oxides such as Fe, Cr, Mn, Al, Ti, Cu, Ca and the like; the magnetoplumbite system is XAl ₁₂ O ₁₉ In the form of main body, X is one or more of alkaline earth metal (except Ba) such as Mg, Mn, Fe, Ca, Sr, etc. or rare earth metal ions such as La, Ce, Pr, Nd, Er, Ho, etc.

The third solvent for forming the infrared radiation coating 232 includes one or more of terpineol, butyl carbitol acetate, butyl cellosolve, tributyl citrate, ethylene glycol monoethyl ether acetate, isopropanol or dibutyl phthalate; the third thickener is cellulose and acrylic acid, and specifically comprises one or more of ethyl cellulose, nitrocellulose, polyisoethylene, polyisobutylene polyvinyl alcohol, polymethyl styrene or polymethyl methacrylate; the thixotropic agent comprises one or more of castor oil, hydrogenated castor oil or organic bentonite; the third surfactant is one or more of anhydrous alcohol, soybean lecithin or span 85; the casting control agent comprises one or more of terephthalic acid, ammonium sulfate or furoic acid.

In a specific embodiment, the common ceramic powder comprises one or more of silica, quartz powder, cenospheres, diatomite, alumina, silicon carbide, magnesia, kaolin, mullite, cordierite, zeolite or hydroxyapatite; the first sintering aid and the second sintering aid respectively comprise one or more of anhydrous sodium carbonate, anhydrous potassium carbonate, albite, potassium feldspar, clay, kaolin, bentonite or glass powder; the first pore-forming agent and the second pore-forming agent respectively comprise one or more of wood chips, graphite powder, starch, flour, walnut powder, polystyrene spheres or polymethyl methacrylate spheres.

The atomizer 1 provided in the present embodiment is provided with an atomizing core 12 comprising a liquid guiding member 20 and a heat generating member 30, wherein the liquid guiding member 30 has an atomizing surface 21 and a liquid absorbing surface 22, and a substrate to be atomized is transferred from the liquid absorbing surface 22 to the atomizing surface 21; the heating element 30 is arranged on the atomizing surface 21 and is used for heating and atomizing the substrate to be atomized; wherein, the liquid guiding member 20 includes an infrared radiation portion 23, the infrared radiation portion 23 has an atomization surface 21, and the infrared radiation portion 23 is used for absorbing heat released by the heat generating member 30 to radiate infrared rays to preheat the substrate to be atomized in the liquid guiding member 20. According to the atomizing device, the infrared radiation part 23 is arranged on the liquid guide part 20, and the atomizing surface 21 is arranged on the surface of the infrared radiation part 23, so that the infrared radiation part 23 can absorb heat released by the heating part 30, and then infrared rays are radiated to the outer wall or the outer surface of the liquid guide part 20 to preheat a to-be-atomized matrix around the heating part 30, so that the heat utilization rate of the heating part 30 can be improved, the transmission rate of the to-be-atomized matrix can be increased, the liquid supply amount of the to-be-atomized matrix transmitted to the atomizing surface 21 is increased, and the dry burning phenomenon of the atomizing core 12 is effectively avoided; the content of aerosol formed after the substrate to be atomized is atomized can be increased, and the user experience is improved.

The present embodiment provides a method for manufacturing the atomizing core 12, and specifically, the method for manufacturing the atomizing core 12 includes the following steps.

Referring to fig. 11 and 12, fig. 11 is a schematic flow chart illustrating a method for manufacturing an atomizing core according to an embodiment of the present disclosure.

S1: preparing a porous sheet layer green body; preparing a heating part prefabricated body on the porous sheet layer green body; wherein the porous sheet layer green body comprises a porous infrared layer.

Fig. 12(a) is a schematic structural view of the first embodiment corresponding to step S1 of the manufacturing method of the atomizing core provided in fig. 11, and fig. 12(b) is a schematic structural view of the second embodiment corresponding to step S1 of the manufacturing method of the atomizing core provided in fig. 11.

Specifically, a raw material for forming the porous sheet layer green sheet 40 is made into a first slurry, and the first slurry is formed into the sheet-like porous sheet layer green sheet 40 by a casting process. The casting process is to place the slurry with flowability on a bearing plane and form a sheet with uniform thickness by means of scraping or rolling. Here, the first paste forms a porous infrared layer 41, as shown in fig. 12 (a).

In another embodiment, the porous sheet layer green sheet 40 is prepared by forming the first slurry into a porous non-infrared layer 42 in a sheet form by a casting process, and coating an infrared radiation coating 232 on one surface of the porous non-infrared layer 42. Among them, the infrared radiation coating layer 232 forms the porous infrared layer 41, as shown in fig. 12 (b).

Specifically, the heat generating member preform 70 is prepared on the surface of the porous infrared layer 41 by any one of sputtering, evaporation, screen printing, coating, and inkjet printing.

S2: and forming a first layer structure on the porous sheet layer green body with the heating part preform on a mould.

Referring to fig. 13, fig. 13(a) is a schematic structural view of the first embodiment corresponding to step S2 of the manufacturing method of the atomizing core provided in fig. 11, and fig. 13(b) is a schematic structural view of the second embodiment corresponding to step S2 of the manufacturing method of the atomizing core provided in fig. 11.

As shown in fig. 13(a), in an embodiment, the mold 80 is embodied as a first mold 81, and the first mold 81 has an annular cylinder structure. The porous sheet green sheet 40 is wound on the first mold 81 to form the prefabricated inner layer tube 51, and the prefabricated inner layer tube 51 is the first layer structure 50. Wherein, the porous sheet layer blank 40 is wound on the outer surface of the inner ring of the first mold 81, so that the side of the porous sheet layer blank 40 provided with the heat generating member preform 70 is close to the outer surface of the inner ring of the first mold 81, i.e. the heat generating member preform 70 is arranged on the inner wall of the prefabricated inner tube 51. Wherein, the inner ring can be a hollow structure or a solid structure.

As shown in fig. 13(b), in another embodiment, the mold 80 is embodied as a second mold 82, the second mold 82 has a rectangular frame structure, and the porous sheet layer green sheet 40 is laid in the second mold 82 to form the first layer structure 50, so that the side of the porous sheet layer green sheet 40 provided with the heat generating member preform 70 is adjacent to the inner bottom surface of the second mold 82.

S3: and preparing a second layer structure on one side of the first layer structure far away from the heating part prefabricated body.

Referring to fig. 14, fig. 14(a) is a schematic structural view of the first embodiment corresponding to step S3 of the manufacturing method of the atomizing core provided in fig. 11, and fig. 14(b) is a schematic structural view of the second embodiment corresponding to step S3 of the manufacturing method of the atomizing core provided in fig. 11.

Specifically, the second layer structure 60 is formed by injection molding, gel casting, dry pressing, or the like on the side of the first layer structure 50 remote from the heat generating member preform 70. Making a second slurry from the raw materials used to form the second layer structure 60; the second paste is injected at a side of the first layer structure 50 away from the heat generating member preform 70. The surface of the second layer structure 60 on the side close to the first layer structure 50 is closely attached to the surface of the first layer structure 50 on the side away from the heat generating member preform 70.

In one embodiment, as shown in fig. 14(a), a second slurry is poured between the porous sheet green sheet 40 and the outer ring within the first mold 81 to form the second layer structure 60. In another embodiment, as shown in FIG. 14(b), a second slurry is poured in a second mold 82 on the side of the porous sheet layer green sheet 40 remote from the heat-generating body preform 70 to form a second layer structure 60.

S4: and removing the mold, and sintering the first layer structure, the second layer structure and the heating part preform integrally.

Referring to fig. 15, fig. 15(a) is a schematic structural view of the first embodiment corresponding to step S4 of the manufacturing method of the atomizing core provided in fig. 11, and fig. 15(b) is a schematic structural view of the second embodiment corresponding to step S4 of the manufacturing method of the atomizing core provided in fig. 11.

Specifically, the second layer structure 60, the first layer structure 50, and the heat generating member preform 70 placed in the first mold 81 or the second mold 82 as a whole are left standing under normal pressure. In one embodiment, after the standing is completed, the first mold 81 or the second mold 82 is removed along the longitudinal axis of the second layer structure 60 and/or the first layer structure 50; carrying out glue discharging treatment on the second layer structure 60, the first layer structure 50 and the heating part prefabricated body 70 at 350-800 ℃; and sintering the first layer structure 50, the second layer structure 60 and the heating part prefabricated body 70 integrally under the condition of 850-1500 ℃ under normal pressure in an air atmosphere. The heat generating member preform 70 is integrally sintered to form the heat generating member 30. In one embodiment, as shown in fig. 15(a), the hollow tubular atomizing core 12 is obtained after atmospheric sintering, and the prefabricated inner layer tube 51 is sintered to form the first layer structure 50; the preformed outer tube 61 is sintered to form the second layer structure 60. The atomizing core 12 includes a liquid guiding member 20 and a heat generating member 30. The liquid guiding member 20 has a first layer structure 50 with a hollow tubular inner layer and a second layer structure 60 closely attached to the first layer structure 50, and the heat generating member 30 is disposed on a side of the first layer structure 50 away from the second layer structure 60. In another embodiment, as shown in fig. 15(b), the plate-shaped atomizing core 12 is obtained after normal pressure sintering, and the atomizing core 12 includes the liquid guiding member 20 and the heat generating member 30. The liquid guiding member 20 has a first layer structure 50 and a second layer structure 60, wherein the side of the first layer structure 50 far away from the second layer structure 60 is provided with the heat generating member 30, and the first layer structure 50 is tightly attached to the second layer structure 60.

In the first specific embodiment, the first layer structure 50 and the second layer structure 60 serve as the porous infrared layer 41.

The raw materials used to form the porous sheet green sheet 40 are made into a first slurry. Specifically, raw materials for forming the porous sheet layer green sheet 40 are prepared, and the prepared raw materials are uniformly mixed to prepare a first slurry. The first slurry was ball-milled in a roll for 24 hours to obtain a stable casting slurry, and after vacuum defoaming, the casting and cutting were carried out to obtain a porous infrared layer 41 in the form of a sheet. The raw materials for forming the first slurry comprise first powder and a first solvent, wherein the first powder comprises infrared ceramic powder, a first sintering aid and a first pore-forming agent; the first sintering aid accounts for 1-40% of the mass of the first powder, and the mass percentage of the first pore-forming agent is not more than twice of the total mass of the infrared ceramic powder and the first sintering aid; the first solvent comprises a first dissolving agent, a dispersing agent, a first binder, a first plasticizer and a coupling agent, wherein the first dissolving agent accounts for 80-150% of the mass of the first powder; the first binder accounts for 5 to 20 percent of the mass of the first powder; the mass percentage of the dispersant in the first powder is 0.1-5%; the first plasticizer accounts for 40-70% of the mass of the first binder; the coupling agent accounts for 0-2% of the mass of the first powder. The mass ratio of the first sintering aid, the first pore-forming agent and the first binder can be determined according to the required sintering shrinkage of the first layer structure 50.

In this embodiment, the first powder forming the porous infrared layer 41 is composed of, by mass, 55% of the first powder mass of the La — Ca — Mn perovskite-system infrared ceramic powder, 12% of the first powder mass of the glass powder, 5% of the first powder mass of the kaolin, and 28% of the first powder mass of the polystyrene spheres. The first solvent forming the porous infrared layer 41 is composed of 75.5 mass% of first dissolving agent, 1 mass% of dispersing agent, 15 mass% of first binder, 8 mass% of first plasticizer and 0.5 mass% of coupling agent, and the mass% of first powder is 60% of the total mass of the first solvent and the first powder.

The first slurry is made into a porous sheet green sheet 40 by a casting process. Specifically, the first slurry prepared as described above is cast into a porous sheet green sheet 40, i.e., a porous sheet is formed. In an alternative embodiment, the first slurry prepared as described above may be rolled to form the porous sheet green sheet 40.

And preparing a heating part preform 70 on the porous sheet layer green body 40 in a screen printing mode. Specifically, the heat generating member preform 70 is printed on one side surface of the porous sheet layer green sheet 40. In a specific embodiment, the material of the heat generating member preform 70 may be silver, silver palladium, silver platinum, or any one of gold and platinum. The heating member preform 70 can be co-fired with the first layer structure 50 and the second layer structure 60 at 850-1500 ℃ due to the good heat resistance of the material; the heating element preform 70 may be prepared by any one of sputtering, evaporation, screen printing, coating, and inkjet printing, or the heating element preform 70 may be prepared by other methods as long as the heating element preform 70 meeting the requirements can be prepared. As shown in fig. 12(a), the heat generating member preform 70 is disposed on the porous infrared layer 40, that is, the heat generating member preform 70 is disposed on the porous infrared base 231.

The porous sheet green sheet 40 is placed on the first mold 81 or the second mold 82 to form the first layer structure 50. In one embodiment, the porous sheet green sheet 40 printed with the heat generating member preform 70 is wound on a first mold 81 to form the first layer structure 50. In one embodiment, as shown in FIG. 13(a), the porous sheet green sheet 40 is formed into a hollow tubular structure around the inner ring of the first mold 81, i.e., the first layer structure 50. Wherein, one side of the porous sheet layer green body 40 on which the heating element prefabricated body 70 is printed is close to the surface of the inner ring close to the outer ring. In another embodiment, the porous sheet green sheet 40 is formed into a hollow tubular structure around the outer ring of the first mold 81, i.e., the first layer structure 50. Wherein, one side of the porous sheet layer green body 40 on which the heating element prefabricated body 70 is printed is close to the surface of the outer layer ring close to the inner layer ring. In still another embodiment, as shown in fig. 13(b), the porous sheet layer green body 40 is laid flat in the second mold 82 to form the first layer structure 50 such that the side of the porous sheet layer green body 40 provided with the heat generating member preform 70 is adjacent to the inner bottom surface of the mold 80.

The raw materials used to form the preformed outer tube 61 are made into a second slurry. Specifically, raw materials for forming the second layer structure 50 are prepared, and the prepared raw materials for forming the second structure 60 are uniformly mixed according to a preset ratio to make a second slurry. The raw materials for forming the second slurry comprise second powder and an auxiliary agent, wherein the second powder accounts for 55-80% of the total mass of the second powder and the auxiliary agent, and the second powder comprises infrared ceramic powder, a second sintering auxiliary agent and a second pore-forming agent; the second sintering aid accounts for 2-40% of the mass of the second powder, and the second pore-forming agent accounts for 5-80% of the mass of the second powder; the auxiliary agent comprises a framework forming agent, a second surfactant, a second plasticizer and a second binder, wherein the framework forming agent accounts for 50-90% of the auxiliary agent by mass; the second surfactant accounts for 1-10% of the mass of the auxiliary agent; the second plasticizer accounts for 1-20% of the mass of the auxiliary agent; the second binder accounts for 10-40% of the second powder by mass.

In this embodiment, the second powder forming the second layer structure 60 is composed of, by mass, 60% of the infrared ceramic powder of the La — Ca — Mn perovskite system, 12% of the glass powder, 5% of the kaolin, and 23% of the polymethyl methacrylate spheres. The auxiliary agent for forming the second layer structure 60 consists of a skeleton forming agent accounting for 65% of the mass of the auxiliary agent, a second surfactant accounting for 1% of the mass of the auxiliary agent, a second plasticizer accounting for 10% of the mass of the auxiliary agent and a second binder accounting for 24% of the mass of the auxiliary agent, wherein the mass percentage of the second powder is 70% of the total mass of the auxiliary agent and the second powder. And mixing the second powder and the auxiliary agent in a three-dimensional mixer for 2 hours, banburying at 180 ℃ for 1.5 hours, cooling and crushing to obtain granular injection molding feed, namely second slurry.

The second paste is injected to form the second layer structure 60 on the side of the first layer structure 60 away from the heat generating member preform 70. Specifically, the second slurry is poured into the first layer structure 50 on the side away from the heat generating member preform 70, and the inner wall of the second layer structure 60 is closely attached to the outer wall of the first layer structure 50. in one embodiment, as shown in fig. 14(a), the second slurry is poured between the porous sheet green sheet 40 and the outer layer ring in the first mold 81 to form the second layer structure 60. In another particular embodiment, a second slurry is poured between the porous sheet green body 40 and the inner ring to form a second layer structure 60. In still another specific example, as shown in FIG. 14(b), a second slurry is poured in a second mold 82 on the side of the porous sheet layer green sheet 40 remote from the heat-generating body preform 70 to form a second layer structure 60.

The mold is removed and the first layer structure 50, the second layer structure 60 and the heat generating member preform 70 are integrally sintered. Specifically, the second layer structure 60, the first layer structure 50 and the heat generating member preform 70 placed in the mold 80 are entirely left standing at normal pressure; removing the mold 80 along the longitudinal axis of the second layer 60 and/or the first layer 50; carrying out glue discharging treatment on the second layer structure 60, the first layer structure 50 and the heating part prefabricated body 70 at 350-800 ℃; the first layer structure 50, the second layer structure 60 and the heat generating member preform 70 are integrally sintered at atmospheric pressure at 850-. In a specific embodiment, after the operation of forming the preformed outer tube 61 from the second slurry is completed, the entire preformed structure is allowed to stand under normal pressure for 15 minutes, and then the mold is removed, leaving the first layer structure 50, the second layer structure 60, and the heat generating member preform 70 as a whole. Firstly, the second layer structure 60, the first layer structure 50 and the heating part prefabricated body 70 are integrally subjected to glue removal for 48 hours at the temperature of 500 ℃; and then the first layer structure 50, the second layer structure 60 and the heat generating member preform 70 are subjected to normal pressure sintering under the air condition, wherein the sintering temperature is 1000 ℃. After sintering, the two electrodes 25 of the heating element preform 70 are led out from the end of the atomizing cavity 14 away from the end communicated with the air outlet channel 13, so that the heating element preform 70 is conveniently connected with the power supply assembly 2 through the electrodes 25.

In a second specific embodiment, the first layer structure 50 acts as a porous infrared layer 41 and the second layer structure 60 does not act as a porous infrared layer 41. The heat generating member preform 70 is disposed on the porous infrared layer 41, that is, the heat generating member preform 70 is disposed on the porous infrared base 231.

The specific steps for preparing the atomizing core 12 in the second embodiment are similar to those for preparing the atomizing core 12 in the first embodiment described above, but the raw materials for forming the second slurry in the second embodiment are different from those for forming the second slurry in the first embodiment described above.

In this embodiment, the raw material for forming the second slurry includes the fourth powder and the auxiliary agent. The fourth powder accounts for 55-80% of the total mass of the fourth powder and the auxiliary agent, and comprises common ceramic powder, a second sintering auxiliary agent and a second pore-forming agent; the second sintering aid accounts for 2-40% of the mass of the fourth powder, and the second pore-forming agent accounts for 5-80% of the mass of the fourth powder; the auxiliary agent comprises a framework forming agent, a second surfactant, a second plasticizer and a second binder, wherein the framework forming agent accounts for 50-90% of the auxiliary agent by mass; the second surfactant accounts for 1 to 10 percent of the mass of the auxiliary agent; the second plasticizer accounts for 1 to 20 percent of the mass of the auxiliary agent; the second binder accounts for 10-40% of the fourth powder by mass. And mixing the fourth powder and the auxiliary agent in a three-dimensional mixer for 3 hours, banburying at 150 ℃ for 2 hours, cooling and crushing to obtain granular injection molding feed, namely the second slurry.

In a third specific embodiment, the first layer structure 50 is only partially as a porous infrared layer 41 and the second layer structure 60 is not as a porous infrared layer 41. The heat generating member preform 70 is disposed on the porous infrared layer 41, i.e., the heat generating member preform 70 is disposed on the infrared radiation coating 232.

The specific steps of preparing the atomized core 12 in the third embodiment are similar to those of preparing the atomized core 12 in the first embodiment described above, but the process and materials for forming the porous sheet green sheet 40 and the raw materials for forming the second slurry in the third embodiment are different from those of forming the porous sheet green sheet 40 and the raw materials for forming the second slurry in the first embodiment described above.

In this example, the raw materials used to form the porous non-infrared layer 42 were made into a first slurry. Specifically, raw materials for forming the porous non-infrared layer 42 are prepared, and the prepared raw materials are uniformly mixed to make a first slurry. And ball-milling the first slurry in a roller for 12 hours to obtain stable casting slurry, casting and cutting into a flaky porous non-infrared layer after vacuum defoaming. The raw materials for forming the first slurry comprise fifth powder and a first solvent, wherein the fifth powder comprises common ceramic powder, a first sintering aid and a first pore-forming agent; the first sintering aid accounts for 1-40% of the mass of the fifth powder, and the mass percentage of the first pore-forming agent is not more than twice of the total mass of the common ceramic powder and the first sintering aid; the first solvent comprises a first dissolving agent, a dispersing agent, a first binder, a first plasticizer and a coupling agent, wherein the first dissolving agent accounts for 80-150% of the fifth powder by mass; the first binder accounts for 5-20% of the fifth powder by mass; the dispersant accounts for 0.1 to 5 percent of the mass of the fifth powder; the first plasticizer accounts for 40-70% of the mass of the first binder; the coupling agent accounts for 0-2% of the fifth powder by mass.

In a specific embodiment, the common ceramic powder comprises one or more of silica, quartz powder, cenospheres, diatomite, alumina, silicon carbide, magnesia, kaolin, mullite, cordierite, zeolite or hydroxyapatite; the first sintering aid and the second sintering aid respectively comprise one or more of anhydrous sodium carbonate, anhydrous potassium carbonate, albite, potassium feldspar, clay, kaolin, bentonite or glass powder; the first sintering aid and the second sintering aid respectively comprise one or more of wood chips, graphite powder, starch, flour, walnut powder, polystyrene spheres or polymethyl methacrylate spheres.

An infrared radiation coating 232 is then applied to the surface of the porous non-infrared layer 42 and dried to provide a porous sheet green body 40. Wherein the infrared radiation coating 232 acts as a porous infrared layer 41. In this embodiment, the raw materials for forming the infrared radiation coating 232 include a third powder and a third solvent, where the third powder includes an infrared ceramic powder, a binder phase, and a third pore-forming agent; the mass percentage of the binding phase in the third powder is 1-40%, and the mass percentage of the third pore-forming agent is not more than one time of the total mass of the infrared ceramic powder and the binding phase; the third solvent includes a third dissolving agent, a third thickener, a third surfactant, a thixotropic agent, and a casting control agent; the third dissolving agent accounts for 55 to 99 percent of the mass of the third solvent; the third thickener accounts for 1 to 20 percent of the mass of the third solvent; the third surfactant accounts for 1 to 10 percent of the third solvent by mass; the thixotropic agent accounts for 0.1 to 5 percent of the mass of the third solvent; the casting control agent accounts for 0.1 to 10 percent of the third solvent by mass.

In a specific embodiment, the third solvent constituting the infrared radiation coating layer 232 includes one or more of terpineol, butyl carbitol acetate, butyl cellosolve, tributyl citrate, ethylene glycol monoethyl ether acetate, isopropyl alcohol, or dibutyl phthalate; the third thickener is cellulose and acrylic acid, and specifically comprises one or more of ethyl cellulose, nitrocellulose, polyisoethylene, polyisobutylene polyvinyl alcohol, polymethyl styrene or polymethyl methacrylate; the thixotropic agent comprises one or more of castor oil, hydrogenated castor oil or organic bentonite; the third surfactant is one or more of anhydrous alcohol, soybean lecithin or span 85; the casting control agent comprises one or more of terephthalic acid, ammonium sulfate or furoic acid.

In this embodiment, the raw materials for forming the second slurry are the same as those for forming the second slurry in the second embodiment, and are not described again.

In the method of manufacturing the atomizing core 12 provided in this embodiment, the porous sheet layer green body 40 is prepared; preparing a heating member preform 70 on the porous sheet layer green body 40; wherein the porous sheet green sheet 40 comprises a porous infrared layer 41. Forming the porous sheet layer green body 40 having the heat generating member preform 70 on a mold 80 into a first layer structure 50; preparing a second layer structure 60 on a side of the first layer structure 50 away from the heat generating member preform 70; the mold 80 is removed and the first layer structure 50, the second layer structure 60 and the heat generating member preform 70 are integrally sintered. The heat generating member preform 70 is sintered to form the heat generating member 30. The first layer structure 50 and the second layer structure 60 are integrally sintered to form the liquid guide 20. The infrared radiation part 23 formed by the porous infrared layer 41 can absorb the heat released by the heat generating member 30 to radiate infrared rays to preheat the substrate to be atomized in the liquid guiding member 20. According to the atomizing device, the infrared radiation part 23 is arranged on the liquid guide part 20, and the atomizing surface 21 is arranged on the surface of the infrared radiation part 23, so that the infrared radiation part 23 can absorb heat released by the heating part 30, and then infrared rays are radiated to the outer wall or the outer surface of the liquid guide part 20 to preheat a to-be-atomized matrix around the heating part 30, so that the heat utilization rate of the heating part 30 can be improved, the transmission rate of the to-be-atomized matrix can be increased, the liquid supply amount of the to-be-atomized matrix transmitted to the atomizing surface 21 is increased, and the dry burning phenomenon of the atomizing core 12 is effectively avoided; the content of aerosol formed after the substrate to be atomized is atomized can be increased, and the user experience is improved.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the following claims.

Claims

1. An atomizing core, characterized in that the atomizing core comprises:

the liquid guide part is provided with an atomizing surface and a liquid suction surface, and the matrix to be atomized is transmitted to the atomizing surface from the liquid suction surface;

the heating piece is arranged on the atomizing surface and used for heating and atomizing the matrix to be atomized;

wherein, the drain includes infrared radiation portion, infrared radiation portion has the atomizing face, infrared radiation portion is used for absorbing the heat that generates heat a release to radiation infrared preheats in the drain treat the atomizing matrix.

2. The atomizing core of claim 1, wherein the infrared radiation portion includes a porous infrared matrix as the infrared radiation portion.

3. The atomizing core of claim 2, wherein the porous infrared matrix has a thickness of 0.2 mm to 3.0 mm.

4. The atomizing core according to claim 1, wherein the liquid guide further comprises a porous non-infrared base body, the porous non-infrared base body is fixedly connected with the infrared radiation part, the surface of the porous non-infrared base body, which is far away from the infrared radiation part, serves as the liquid absorption surface, and the surface of the infrared radiation part, which is far away from the porous non-infrared base body, serves as the atomizing surface.

5. The atomizing core of claim 4, wherein the infrared radiation portion is a porous infrared matrix or an infrared radiation coating.

6. The atomizing core of claim 4, wherein the infrared radiating portion has a thickness of 0.01 to 0.5 millimeters and the porous non-infrared substrate has a thickness of 0.2 to 3.0 millimeters.

7. The atomizing core according to claim 4, wherein the material of the infrared radiation part is porous infrared ceramic, the material of the porous non-infrared substrate is porous non-infrared ceramic, the pore diameters of the porous infrared ceramic and the porous non-infrared ceramic are 10 to 100 micrometers, and the porosity is 40 to 70 percent.

8. The atomizing core according to claim 1, characterized in that the liquid guide member is a hollow tubular body, one of an inner side surface and an outer side surface of the hollow tubular body serves as the atomizing surface, and the other serves as the liquid suction surface; or the liquid guide piece is a plate body, one surface of two opposite surfaces of the plate body is used as the atomizing surface, and the other surface of the two opposite surfaces of the plate body is used as the liquid suction surface.

9. The atomizing core of claim 1, wherein the infrared radiation portion has a radiation temperature of 45 ℃ to 95 ℃.

10. The atomizing core according to claim 2 or 5, wherein the infrared radiation portion is the porous infrared substrate, a material forming the porous infrared substrate includes a first powder and a first solvent, and the first powder includes an infrared ceramic powder, a first sintering aid and a first pore former; the first sintering aid accounts for 1-40% of the mass of the first powder, and the mass percentage of the first pore-forming agent is not more than twice of the total mass of the infrared ceramic powder and the first sintering aid; the first solvent comprises a first dissolving agent, a dispersing agent, a first binder, a first plasticizer and a coupling agent, wherein the first dissolving agent accounts for 80-150% of the mass of the first powder; the first binder accounts for 5-20% of the first powder by mass; the mass percentage of the dispersant in the first powder is 0.1-5%; the first plasticizer accounts for 40-70% of the mass of the first binder; the coupling agent accounts for 0-2% of the mass of the first powder.

11. The atomizing core according to claim 10, wherein the material forming the porous infrared substrate further comprises a second powder and an auxiliary agent, the second powder accounts for 55-80% of the total mass of the second powder and the auxiliary agent, and the second powder comprises infrared ceramic powder, a second sintering auxiliary agent and a second pore-forming agent; the second sintering aid accounts for 2-40% of the mass of the second powder, and the second pore-forming agent accounts for 5-80% of the mass of the second powder; the auxiliary agent comprises a framework forming agent, a second surfactant, a second plasticizer and a second binder, wherein the framework forming agent accounts for 50-90% of the auxiliary agent by mass; the second surfactant accounts for 1-10% of the mass of the auxiliary agent; the second plasticizer accounts for 1-20% of the mass of the auxiliary agent; the second binder accounts for 10-40% of the second powder by mass.

12. The atomizing core of claim 5, wherein the infrared radiation portion is the infrared radiation coating, and the material forming the infrared radiation coating comprises a third powder and a third solvent, the third powder comprising an infrared ceramic powder, a binder phase, and a third pore former; the mass percentage of the bonding phase in the third powder is 1-40%, and the mass percentage of the third pore-forming agent is not more than one time of the total mass of the infrared ceramic powder and the bonding phase; the third solvent includes a third dissolving agent, a third thickener, a third surfactant, a thixotropic agent, and a casting control agent; the third dissolving agent accounts for 55 to 99 percent of the mass of the third solvent; the third thickening agent accounts for 1-20% of the third solvent by mass; the third surfactant accounts for 1-10% of the third solvent by mass; the thixotropic agent accounts for 0.1-5% of the mass of the third solvent; the casting control agent accounts for 0.1-10% of the third solvent by mass.

13. A nebulizer, characterized in that it comprises a nebulizing core according to any one of claims 1 to 12.

14. An electronic atomizing device, wherein said electronic atomizing device comprises a power supply assembly and the atomizer of claim 13, said power supply assembly supplying power to said atomizer.

15. A method of manufacturing an atomizing core, comprising:

preparing a heating part preform on the porous infrared layer;

forming the porous sheet layer green body with the heating part prefabricated body into a first layer structure on a mould;

preparing a second layer structure on one side of the first layer structure, which is far away from the heating part prefabricated body;

and removing the mould, and sintering the first layer structure, the second layer structure and the heating part preform integrally.

16. The method of manufacturing an atomizing core according to claim 15, wherein the step of preparing the porous sheet green body includes:

and preparing the first slurry into the porous infrared layer by a casting process.

17. The method of manufacturing an atomizing core according to claim 15, wherein the step of preparing the porous sheet green body includes:

preparing the porous non-infrared layer from the first slurry through a casting process;

applying an infrared-radiating coating on one surface of the porous non-infrared layer to form the porous infrared layer.

18. The manufacturing method of the atomizing core according to claim 15, wherein the step of producing a heat generating member preform on the porous infrared layer includes:

and preparing the heating part preform by any one of sputtering, evaporation, silk-screen printing, coating and ink-jet printing.

19. The method of manufacturing an atomizing core according to claim 15,

the step of forming the porous sheet green body into the first layer structure on the mold comprises:

winding the porous sheet layer green body on the mold to form a prefabricated inner layer pipe, wherein the heating part prefabricated body is arranged on the inner wall of the prefabricated inner layer pipe;

the step of preparing the second layer structure on the side of the first layer structure far away from the heat generating part preform comprises the following steps:

and forming a prefabricated outer layer pipe on the outer side of the predicted inner layer pipe.

20. The method of manufacturing an atomizing core according to claim 15,

flatly paving the porous sheet layer green blank in the mold to form the first layer structure, wherein the heating part prefabricated body is arranged on the surface, facing the bottom surface of the mold, of the first layer structure;

and forming the second layer structure on one side of the first layer structure far away from the heating part prefabricated body.

21. The method of manufacturing an atomizing core according to claim 15,

preparing a raw material for forming the second layer structure into a second slurry;

and injecting the second slurry into one side of the first layer structure, which is far away from the heating part preform, wherein the inner wall surface of the second layer structure is tightly attached to the surface of one side of the first layer structure, which is far away from the heating part preform.

22. The manufacturing method of the atomizing core according to claim 15, wherein the step of removing the mold and sintering the first layer structure, the second layer structure, and the heat generating member preform as a whole includes:

carrying out glue discharging treatment on the second layer structure, the first layer structure and the whole heating part preform at the temperature of 350-800 ℃;

23. The method of manufacturing an atomizing core according to claim 16, wherein the raw materials forming the first slurry include a first powder and a first solvent, the first powder including an infrared ceramic powder, a first sintering aid, and a first pore-forming agent; the first sintering aid accounts for 1-40% of the mass of the first powder, and the mass percentage of the first pore-forming agent is not more than twice of the total mass of the infrared ceramic powder and the first sintering aid; the first solvent comprises a first dissolving agent, a dispersing agent, a first binder, a first plasticizer and a coupling agent, wherein the first dissolving agent accounts for 80-150% of the mass of the first powder; the first binder accounts for 5-20% of the first powder by mass; the mass percentage of the dispersant in the first powder is 0.1-5%; the first plasticizer accounts for 40-70% of the mass of the first binder; the coupling agent accounts for 0-2% of the mass of the first powder.

24. The method of manufacturing an atomizing core according to claim 17, wherein the raw materials forming the infrared radiation coating layer include a third powder and a third solvent, the third powder including an infrared ceramic powder, a binder phase, and a third pore former; the mass percentage of the bonding phase in the third powder is 1-40%, and the mass percentage of the third pore-forming agent is not more than one time of the total mass of the infrared ceramic powder and the bonding phase; the third solvent includes a third dissolving agent, a third thickener, a third surfactant, a thixotropic agent, and a casting control agent; the third dissolving agent accounts for 55 to 99 percent of the mass of the third solvent; the third thickening agent accounts for 1-20% of the third solvent by mass; the third surfactant accounts for 1-10% of the third solvent by mass; the thixotropic agent accounts for 0.1-5% of the mass of the third solvent; the casting control agent accounts for 0.1-10% of the third solvent by mass.

25. The manufacturing method of the atomizing core according to claim 21, wherein the raw material for forming the second slurry comprises a second powder and an auxiliary agent, the second powder accounts for 55-80% of the total mass of the second powder and the auxiliary agent, and the second powder comprises infrared ceramic powder, a second sintering auxiliary agent and a second pore-forming agent; the second sintering aid accounts for 2-40% of the mass of the second powder, and the second pore-forming agent accounts for 5-80% of the mass of the second powder; the auxiliary agent comprises a framework forming agent, a second surfactant, a second plasticizer and a second binder, wherein the framework forming agent accounts for 50-90% of the auxiliary agent by mass; the second surfactant accounts for 1-10% of the mass of the auxiliary agent; the second plasticizer accounts for 1-20% of the mass of the auxiliary agent; the second binder accounts for 10-40% of the second powder by mass.