WO2022193745A1

WO2022193745A1 - Atomizer, manufacturing method for atomizer, and electronic cigarette

Info

Publication number: WO2022193745A1
Application number: PCT/CN2021/136768
Authority: WO
Inventors: 张家鑫; 周虎; 陈慧玲
Original assignee: 比亚迪精密制造有限公司
Priority date: 2021-03-19
Filing date: 2021-12-09
Publication date: 2022-09-22
Also published as: CN115104778A

Abstract

An atomizer, a manufacturing method for the atomizer, and an electronic cigarette. The atomizer comprises a porous ceramic body (10) and a heating body (20), wherein the porous ceramic body (10) comprises a liquid guide area (11) and an atomization area (12), liquid is guided into the atomization area (12) by means of the liquid guide area (11), and the heating body (20) is used for heating the porous ceramic body (10), such that the liquid can be heated and atomized in the atomization area (12); and an escape hole (50) is formed in a housing of the atomizer, particles formed by means of liquid atomization escape from the escape hole (50), and in the depth direction of the escape hole (50), the width of the bottom of the escape hole (50) is not larger than the width of an opening, such that the escape hole (50) has a large opening angle and efficient escape of the particles can be achieved, and the particles are prevented from remaining in the escape hole (50) and being heated for too long a time.

Description

Atomizer, method for making atomizer and electronic cigarette

This application claims the priority of the Chinese patent application with the application number 202110300110.X and the application name "Atomizer, Atomizer Manufacturing Method and Electronic Cigarette" filed with the China Patent Office on March 19, 2021, all of which are The contents are incorporated herein by reference.

technical field

The present disclosure belongs to the field of atomizers, and in particular relates to an atomizer, a method for making the atomizer, and an electronic cigarette.

Background technique

Atomizers can atomize tobacco products in a heat-not-burn manner to form smoke that can be smoked. At the same time, the nebulizer can also be used in the medical field, that is, the nebulizer is used to atomize the drug to form particles, and the patient deposits the particles into the lungs through breathing, so as to achieve a painless, rapid and effective treatment. In addition, it can also be used in various fields such as purification and humidification, aromatherapy and beauty, and surface spraying.

At present, the widely used atomizer is a ceramic heating element. The ceramic heating body generally includes a porous ceramic body and a heating element arranged on the porous ceramic body. However, the micropores of the existing ceramic heating element are randomly distributed, and the resistance to the particles is large, so that the particles cannot escape effectively.

SUMMARY OF THE INVENTION

The purpose of the present disclosure is to provide an atomizer, a method for making the atomizer, and an electronic cigarette, which can reduce the escape resistance of particles, achieve efficient escape, and avoid the generation of harmful substances due to excessive heating time.

To achieve the purpose of the present disclosure, the present disclosure provides the following technical solutions:

In a first aspect, an embodiment of the present disclosure provides an atomizer, including a porous ceramic body and a heating body, the porous ceramic body includes a liquid conducting area and an atomizing area, and liquid is introduced into the atomizing area through the liquid conducting area , the heating body is used to heat the porous ceramic body, so that the liquid is heated and atomized in the atomization zone; wherein, the shell of the atomizer is formed with an escape hole, and the liquid mist The formed particles escape from the atomizer from the escape hole, and along the depth direction of the escape hole, the width dimension of the bottom of the escape hole is not greater than the width dimension of the opening.

In one embodiment, along the depth direction of the escape hole, the width dimension of the escape hole gradually increases from the bottom to the opening.

In one embodiment, the heating body covers the surface of the atomization area, and the escape hole is formed on the heating body and communicates with the atomization area.

In one embodiment, the escape hole is formed on the surface of the atomization area, and the heating body covers part of the surface of the atomization area.

In one embodiment, the escape hole is formed in an area of the surface of the atomization zone that is not covered by the heating body.

In one embodiment, the shape of the longitudinal section of the escape hole is any one of the following:

Circle, oval, triangle, rectangle, inverted trapezoid, waveform.

In a second aspect, embodiments of the present disclosure provide an electronic cigarette, including the atomizer according to any one of the various embodiments of the first aspect.

In a third aspect, an embodiment of the present disclosure provides a method for manufacturing an atomizer, the atomizer includes a porous ceramic body and a heating body, the porous ceramic body includes a liquid conducting area and an atomizing area, and the liquid passes through the conducting The liquid area is introduced into the atomization area, and the heating body is used for heating the porous ceramic body, so that the liquid is heated and atomized in the atomization area; the manufacturing method of the atomizer includes: The shell of the atomizer forms an escape hole, and the particles formed by the atomization of the liquid escape the atomizer from the escape hole, and make the escape hole along the depth direction of the escape hole. The width dimension of the bottom of the hole is not greater than the width dimension of the opening.

In one embodiment, an escape hole is formed in the casing of the atomizer, so that along the depth direction of the escape hole, the width dimension of the escape hole gradually increases from the bottom to the opening.

In an embodiment, the heating body covers the surface of the atomization area, and the manufacturing method of the atomizer includes: forming the escape hole on the heating body, and making the escape hole communicate with the the fogging area.

In one embodiment, the manufacturing method of the atomization area includes: forming the escape hole on the surface of the atomization area; printing the heating body on the surface of the atomization layer, and the heating body covers part of the surface of the atomization zone.

In one embodiment, the area of the surface of the atomization zone that is not covered by the heating body forms the escape hole.

In an embodiment, forming an escape hole in the outer shell of the atomizer includes: grinding the outer shell of the atomizer, so that the sharp corner structure at the opening of the escape hole is reduced due to stress concentration. collapse.

In one embodiment, forming the escape hole in the shell of the atomizer includes: forming the escape hole through an exposure, development and etching process.

In an embodiment, forming an escape hole in the shell of the atomizer includes: providing an embossing part, the embossing part includes a plurality of microneedles; using the embossing part to emboss the atomizing part A plurality of the microneedles are embedded in the atomizer to form the escape hole.

In one embodiment, forming an escape hole in the shell of the atomizer includes: providing a mold, the mold includes a mold cavity and a plurality of protrusions protruding from the inner wall of the mold cavity; The cavity is filled with material to mold the nebulizer, during which the escape holes are formed in the nebulizer's housing by means of the protrusions.

By forming an escape hole in the shell of the atomizer, and along the depth direction of the escape hole, the width dimension of the bottom of the escape hole is not greater than the width dimension of the opening, so that the escape hole has a larger opening angle, and the particles are in The number of rebounds of the escape hole is reduced, the escape resistance is reduced, the efficient escape of the particles can be realized, and the particles are prevented from staying in the escape hole for too long and being heated for too long to generate harmful substances.

Description of drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the structural representation of the atomizer of a kind of embodiment;

2 is a schematic cross-sectional structure diagram of an atomizer according to an embodiment;

3 is a schematic cross-sectional structure diagram of an atomizer according to an embodiment;

4 is a schematic cross-sectional structure diagram of an atomizer according to an embodiment;

Fig. 5 is the schematic diagram of the manufacture method of the atomizer of a kind of embodiment;

Fig. 6 is the schematic diagram of the escape hole in Fig. 5;

7 is a schematic diagram of a method for making an atomizer according to an embodiment;

8a is a schematic cross-sectional structure diagram of an atomizer according to an embodiment;

8b is a schematic cross-sectional structure diagram of an atomizer according to an embodiment;

9 is a schematic diagram of a method for making an atomizer of an embodiment;

FIG. 10 is a schematic diagram of a manufacturing method of an atomizer according to an embodiment.

Description of reference numbers:

10-Porous ceramic body, 11-Liquid conduction area, 12-Atomization area, 13-Sharp corner structure;

20 - heating body;

30- circuit pin;

40 - photoresist, 41 - sacrificial structure, 42 - hollow space, 45 - resistance structure;

50 - escape hole;

60-imprint, 61-microneedle;

70-Auxiliary, 71-Bulge;

80-Cavity.

Detailed ways

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

Referring to FIG. 1 , an embodiment of the present disclosure provides an atomizer including a porous ceramic body 10 , a heating body 20 and circuit pins 30 . The porous ceramic body 10 has a plurality of micropores (not shown in the figure), and the micropores are used for the flow of liquid. Of course, the micropores can also be used for the flow of gas or gaseous particles. The heating body 20 is used to heat the porous ceramic body 10 to atomize the liquid. The circuit pins 30 are connected to the heating body 20 and are used to connect to a power source such as a rechargeable battery, so that the heating body 20 is energized and heated. This embodiment does not limit the specific position of the heating body 20 relative to the porous ceramic body 10 , nor does it limit the specific position of the circuit pins 30 relative to the porous ceramic body 10 . Among them, the principle of liquid atomization is to use the Leiden-Furster effect. At the Leiden-Furster temperature, the liquid is vaporized to form particles, and a film is formed on the inner wall of the micropore or escape hole 50, and the particles are in the micropore. Or escape from the high frequency bounce in the hole 50 and atomize.

Optionally, the liquid may be e-liquid, medicinal liquid, fragrance, etc., and the particles formed after atomization may be aerosol or aerogel.

Optionally, the heating body 20 is not limited to a heating wire (such as a resistance wire) or a heating surface.

Referring to FIG. 2 , the porous ceramic body 10 includes a liquid conducting area 11 and an atomizing area 12 . Optionally, the liquid guiding area 11 may extend into the cavity for storing the liquid and be immersed in the liquid; alternatively, the liquid may also be transported to the liquid guiding area 11 through structures such as oil absorbent cotton. Both the liquid guiding area 11 and the atomizing area 12 have a plurality of micropores, and the liquid is introduced into the atomizing area 12 through the liquid guiding area 11 , and the liquid is heated and atomized in the atomizing area 12 . When the porous ceramic body 10 is heated, the liquid in the low temperature area (ie the liquid-conducting area 11 ) will not be atomized but liquid, while the liquid in the high temperature area (ie the atomizing area 12 ) is atomized into several particles , the macroscopic gaseous mist.

Please refer to FIG. 2 to FIG. 6 , the shell of the atomizer is formed with an escape hole 50 , and the particles formed by liquid atomization escape from the escape hole 50 from the atomizer, and escape along the depth direction of the escape hole 50 . The width dimension of the bottom of the hole 50 is not greater than the width dimension of the opening.

Optionally, the escape hole 50 is a micro hole, that is, the micro hole opened in the atomizer shell is the escape hole 50; optionally, the escape hole 50 can also be other types of holes, which may not be in the same process as the micro hole. It can also be made in different structures.

Wherein, according to the different shapes of the escape hole 50, its width dimension can be expressed as the width of the opposite two side walls, the inner diameter of the inner wall, and the like.

Specifically, please refer to FIGS. 5 and 6 . FIG. 5 shows various opening angles of the escape holes 50 , and FIG. 6 shows the M and N paths when two particles are injected into the escape holes 50 . Taking the escape hole 50 formed in the outer shell of the porous ceramic body 10 as an example, the particles are transported to the escape hole 50 in the micropores of the porous ceramic body 10. Due to the high temperature of heating, the particles also have considerable thermal energy and can move at high speed. The width dimension of the bottom of the escape hole 50 is set not to be larger than the width dimension of the opening, so that the probability of being blocked by the side wall of the escape hole 50 can be reduced when the particles escape outward.

As shown in FIG. 5 , when the escape hole 50 is not subjected to any treatment, the escape hole 50 includes a hole A with a semicircular longitudinal section, a hole B with a minor arc in the longitudinal section, and a hole C with a superior arc in the longitudinal section. The corresponding The opening angles are α, β and γ, respectively. After the escape hole 50 is processed, the escape hole 50 includes a hole A' with a semicircular longitudinal section, a hole B' with a minor arc in the longitudinal section, and a hole C' with a superior arc in the longitudinal section, and the corresponding opening angles are α' respectively. , β' and γ'. Before the escape hole 50 is processed, the bottom width dimension of the hole A and the hole B is smaller than the width dimension of the opening, and the bottom width dimension of the hole C is larger than the width dimension of the opening; after the escape hole 50 is processed, the opening angle α , β, α', and β' are all larger, while γ is smaller and γ' is larger.

As shown in FIG. 6 , when the width of the bottom of the escape hole 50 is not set to be not greater than the width of the opening, that is, when the width of the bottom of the escape hole 50 is greater than the width of the opening, the particles travel from the escape hole 50 along the M path. The bottom is injected, rebounds on the inner wall of the escape hole 50, is blocked by the sharp corner structure 13 at the opening of the escape hole 50, and returns to the inner wall of the escape hole 50 to rebound again, and must go through multiple rebounds to escape from the escape. The opening of the hole 50 escapes. When the particles are injected into the escape hole 50 along the N path, they will also be blocked by the sharp corner structure 13 at the opening of the escape hole 50 to change the escape angle. When the number of particles is large, the particles will collide with each other, and the width of the opening of the escape hole 50 is smaller than the width of the bottom. On the one hand, the sharp corner structure 13 at the opening of the escape hole 50 will block some particles In operation, on the other hand, the collision of several particles whose escape angles are changed by the sharp corner structure 13 creates congestion at the opening of the escape hole 50 and increases the overall escape resistance of the particles.

As shown in FIG. 6 , after setting the width of the bottom of the escape hole 50 to be no greater than the width of the opening, the particles are injected into the escape hole 50 at the same angle. With the blocking of the sharp corner structure 13 , the particles can escape by reducing the number of rebounds, and at the same time, the collision between the particles can be reduced, and the escape resistance at the opening of the escape hole 50 is reduced.

Therefore, in the present disclosure, the escape hole 50 is formed in the casing of the atomizer, and the width dimension of the bottom of the escape hole 50 is not larger than the width dimension of the opening along the depth direction of the escape hole 50, so that the escape hole 50 has With a larger opening angle, the number of rebounds of particles in the escape hole 50 is reduced, the escape impedance is reduced, and efficient escape of the particles can be achieved, preventing the particles from staying in the escape hole 50 for too long and being heated for too long to generate harmful substances.

According to different shapes of the escape hole 50 , in the depth direction of the escape hole 50 , the width dimension of the escape hole 50 has various options. Specifically, as shown in FIGS. 2 to 4 , when the shape of the longitudinal section of the escape hole 50 is a semicircle, the width dimension of the escape hole 50 gradually increases from the bottom to the opening; holes A and A in FIG. 5 The shape of the longitudinal section of ' is a semicircle, and its width gradually increases from the bottom to the opening. The longitudinal sections of holes B and B' are in the shape of an inferior arc, and its width gradually increases from the bottom to the opening. The hole C The shape of the longitudinal section of ' is a combination of semicircle and rectangle, and its width gradually increases from the bottom to the outside, and reaches the maximum value at the connection of the rectangle, and then maintains the width to the opening. Please refer to FIG. 7 , FIG. 9 and FIG. 10 , the shape of the longitudinal section of the escape hole 50 is an inverted trapezoid, and the width dimension of the escape hole 50 gradually increases from the bottom to the opening. Referring to FIG. 8a, the longitudinal section of the escape hole 50 is triangular in shape, and its width gradually increases from the bottom to the opening. Referring to FIG. 8b, the shape of the longitudinal section of the escape hole 50 is a waveform, which can be a regular sine wave or an arbitrary wave shape, and its width gradually increases from the bottom to the opening.

In a word, the shape of the longitudinal section of the escape hole 50 can be any feasible shape including but not limited to circle, ellipse, triangle, inverted trapezoid, wave shape and the like. In the depth direction of the escape hole 50 , its width dimension generally increases gradually from the bottom to the opening. In this way, the opening angle of the escape hole 50 can be made larger, so as to prevent the inner wall of the escape hole 50 from causing additional obstruction to the escape of particles.

Optionally, the shape of the longitudinal section of the escape hole 50 may also be a rectangle, and along the depth direction of the escape hole 50 , the width dimension of the escape hole 50 is the same from the bottom to the opening. In this way, the opening of the escape hole 50 can also be made larger, and the inner wall of the escape hole 50 can also prevent the inner wall of the escape hole 50 from causing additional obstruction to the escape of particles.

In one embodiment, please refer to FIG. 2 and FIG. 3 , the escape hole 50 is formed on the surface of the atomization area 12 , and the heating body 20 covers part of the surface of the atomization area 12 .

Optionally, please refer to FIG. 3 , the escape hole 50 is formed on the surface of the atomization area 12, the heating body 20 is close to the surface of the atomization area 12 facing away from the liquid-guiding area 11 and the inner wall of the escape hole 50, and the heating body 20 has a microstructure. gaps to pass through the atomized particles.

In this embodiment, the heating body 20 can be a thin film layer, which covers a part of the surface of the atomization area 12 as a whole. The thickness of each position of the heating body 20 is approximately the same. On the surface of the liquid area 11 , at the position of the escape hole 50 , the heating body 20 also extends to the inside of the escape hole 50 , and is in close contact with the inner wall of the escape hole 50 . The heating body 20 has micro slits, and the slit width of the micro slits may be in nanometer or micron order. Viewed from the outside, this embodiment is also a structure in which an escape hole 50 is formed on the outer surface of the atomizer.

Optionally, the escape hole 50 is formed on the surface of the atomization zone 12 that is not covered by the heating body 20 . The shielding of the escape hole 50 by the heating body 20 can be avoided.

In one embodiment, please refer to FIG. 4 , the heating body 20 covers the surface of the atomization area 12 , and the escape holes 50 are formed on the heating body 20 and communicate with the atomization area 12 .

In other words, the heating body 20 can be a thin film layer that covers the entire surface of the outer shell of the atomization zone 12 . The escape holes 50 formed on the heating body 20 communicate with the micropores of the atomization zone 12, so that the particles atomized in the atomization zone 12 can enter the heating body 20 and escape from the escape holes 50 on the heating body 20 for atomization. device.

The manufacturing process of the heating body 20 covering the surface of the atomization area 12 in the embodiment shown in FIG. 3 and FIG. 4 can be performed by printing electronic paste on a ceramic green embryo, baking at a high temperature to simultaneously form the porous ceramic body 10 and heating For the body 20 , the porous ceramic body 10 can also be fabricated first, and then the heating body 20 is fabricated through processes such as pasting and plating. Of course, other processes such as coating and spraying can also be used.

In an embodiment, please refer to FIG. 1 and FIG. 2 , the heating bodies 20 are distributed on the surface of the atomization area 12 in a plurality of strips at intervals, and the escape holes 50 are formed at the intervals between the plurality of heating bodies 20 . The surface of the atomization zone 12 .

In this embodiment, the outer surface of the atomizer includes the surface of the heating body 20 facing away from the atomizing area 12 and the surface of the atomizing area 12 facing away from the liquid-guiding area 11, and an escape hole 50 is formed on the surface of the atomizing area 12, and also Atomization function can be realized. Wherein, the escape holes 50 may be formed on the entire surface of the atomization zone 12 , or the escape holes 50 may be formed only on the surface of the atomization zone 12 at the intervals of the plurality of heating bodies 20 .

In another embodiment, referring to FIG. 2 , the heating body 20 is distributed on the surface of the atomization area 12 in a mesh shape, and the escape holes 50 are formed on the surface of the atomization area 12 at the mesh hole of the heating body 20 .

In another embodiment, referring to FIG. 2 , the heating body 20 may be arranged on the surface of the atomization zone 12 in an “S” shape.

In an embodiment, please refer to FIG. 4, when the outer surface of the atomizer only partially covers the heating body 20, that is, the heating body 20 can be in the shape of a plurality of spaced strips, or in the shape of a mesh, or in the shape of an "S". In addition to the escape holes 50 formed on the surface of the atomizing area 12 exposed to the outside, the heating body 20 may also be formed with escape holes 50, and the escape holes 50 communicate with the micropores of the atomizing area 12.

That is to say, the entire outer surface of the atomizer is formed with escape holes 50 , so that the distribution area of the escape holes 50 is large enough to increase the escape amount of particles and improve the atomization efficiency.

Embodiments of the present disclosure further provide an electronic cigarette, including the atomizer in any of the foregoing embodiments. In the electronic cigarette of the embodiment of the present disclosure, the escape hole 50 is formed on the outer surface of the atomizer, and the width dimension of the bottom of the escape hole 50 along the depth direction of the escape hole 50 is not greater than the width dimension of the opening, so that The escape hole 50 has a larger opening angle, the number of rebounds of the particles in the escape hole 50 is reduced, the escape resistance is reduced, the efficient escape of the particles can be realized, and the particles can be prevented from staying in the escape hole 50 and being heated for too long. produce harmful substances.

Embodiments of the present disclosure also provide a method for manufacturing an atomizer. For the structure of the atomizer, reference may be made to the foregoing description, which will not be repeated here. Among them, in the manufacturing method of the atomizer, the core is to form the escape hole 50 on the outer surface of the atomizer, and, along the depth direction of the escape hole 50, the width dimension of the bottom of the escape hole 50 is not greater than the width of the opening size.

By forming the escape hole 50 on the outer surface of the atomizer, and along the depth direction of the escape hole 50, the width dimension of the bottom of the escape hole 50 is not greater than the width dimension of the opening, so that the escape hole 50 has a larger width. With the opening angle, the number of rebounds of the particles in the escape hole 50 is reduced, the escape resistance is reduced, and the efficient escape of the particles can be realized, avoiding the particles staying in the escape hole 50 and being heated for too long to generate harmful substances.

In one embodiment, please refer to FIG. 5 , an escape hole 50 is formed on the outer surface of the atomizer, including:

The outer surface of the atomizer is ground so that the sharp corner structures 13 at the opening of the escape holes 50 collapse due to stress concentration.

In this embodiment, when the escape hole 50 is formed on the atomization area 12 of the porous ceramic body 10, the escape hole 50 is a micropore with an opening of the porous ceramic body 10 that communicates with the outside world, so there is no need to increase the production Steps to escape hole 50. In this embodiment, since the micropores are randomly distributed in the porous ceramic body 10, the positions of the formed escape holes 50 are also random, and there may be escapes in the shapes of the holes A, B and C in FIG. 5 . Outlet hole 50. The ductility and brittleness of ceramic materials are poor, and part of the structure can be removed by grinding. Specifically, when the escape hole 50 is the hole C in FIG. 5 , since the inner wall at the opening of the escape hole 50 is formed with the sharp corner structure 13 , the opening angle γ of the hole C of the escape hole 50 is relatively small. Through the grinding method, the sharp corner structure 13 can be collapsed due to stress concentration, forming the shape of the hole C' in FIG. 5, which significantly increases the width of the opening of the escape hole 50, and the obtained opening angle γ' of the hole C' significantly increased. 6, the sharp corner structure 13 at the opening of the escape hole 50 is collapsed by grinding, which can increase the opening angle of the escape hole 50, reduce the escape resistance of particles, and improve the atomization efficiency.

In addition, after the holes A and B in FIG. 5 are ground, the width dimensions of the openings of the holes A and B can also be increased, so that the corresponding opening angles α' and β' are also increased.

That is to say, after grinding, the opening angle α' of hole A' is larger than the opening angle α of hole A, the opening angle β' of hole B' is larger than the opening angle β of hole B, and the opening angle γ' of hole C' is larger than the opening angle β of hole B'. The opening angle γ of C. In conclusion, by grinding, the opening angle of the escape holes 50 formed on the atomization zone 12 can be increased, so that the escape resistance of the particles can be reduced.

In one embodiment, referring to FIG. 7 , an escape hole 50 is formed on the outer surface of the atomizer, including:

The escape hole 50 is formed by an exposure, development and etching process.

In this embodiment, when the escape hole 50 is formed on the surface of the heating body 20, since the heating body 20 is made of metal and has good ductility, it is difficult to change its structure by grinding.

Specifically, a layer of photoresist 30 can be coated on the outer surface of the porous ceramic body 10, wherein the photoresist 30 is a negative material, and the photoresist 30 layer can be exposed and developed through a mask, so that the exposed layer is exposed to light. The exposed photoresist 30 remains to form a sacrificial structure 41 , and the unexposed photoresist 30 is removed to form a hollow space 42 . Then, the atomizer is put into the electroforming solution for electroforming, so that the hollow space 42 is filled with metal material to form the resistance structure 45, and the resistance structure 45 is the heating body 20; and then the sacrificial structure 41 is removed by the etching process, and the sacrificial structure 41 Escape holes 50 are formed after removal.

Optionally, when the heating body 20 is relatively thin, the escape holes 50 may penetrate the heating body 20, that is, the escape holes 50 communicate with the outer surface of the porous ceramic body 10 and communicate with the micropores of the porous ceramic body 10. It is necessary to make micropores in the inside of the heating body 20 again.

Optionally, when the heating body 20 is relatively thick, the escape holes 50 may not penetrate the heating body 20, but a plurality of micro-holes are formed in the heating body 20 through a process such as laser etching, and the plurality of micro-holes in the heating body 20 are formed. It communicates with a plurality of pores of the porous ceramic body 10 .

During exposure and development, the light transmission pattern or transparency of the mask can be set as required to form hollow spaces 42 of different shapes, and further to form escape holes 50 of different shapes. Three different shapes of escape holes 50 are shown in Figures 7, 8a and 8b.

In one embodiment, please refer to FIG. 9 , an escape hole 50 is formed on the outer surface of the atomizer, including:

an imprint 60 is provided, and the imprint 60 includes a plurality of microneedles 61;

The nebulizer is imprinted using the stamp 60 , and a plurality of microneedles 61 are embedded in the nebulizer to form the escape hole 50 .

In this embodiment, the shape of the microneedle 61 can be set as required to obtain the desired shape of the escape hole 50 . In this embodiment, the stamping member 60 can stamp the porous ceramic body 10 or the heating body 20 . The specific steps may include: contacting a plurality of microneedles 61 with the atomizer; applying pressure to the embossing part 60 so that multiple positions are embedded in the atomizer; after obtaining the required escape holes 50 , pressing the embossing part 60 Pull out of the nebulizer.

In this embodiment, the escape hole 50 is made by embossing, the shape of the escape hole 50 is highly controllable, and the atomization efficiency of the atomizer can be ensured. The embossing method is simple and easy to operate.

In one embodiment, please refer to FIG. 10 , an escape hole 50 is formed on the outer surface of the atomizer, including:

Provide a mold, the mold includes a mold cavity 80 and a plurality of protrusions 71 protruding from the inner wall of the mold cavity 80;

The cavity 80 is filled with material to mold the atomizer, during which the escape hole 50 is formed in the housing of the atomizer by means of the protrusions 71 .

In this embodiment, the shape of the protrusion 71 can be set as required to obtain the desired shape of the escape hole 50 . Fabricating the atomizer in the mold cavity 80 can fabricate the porous ceramic body 10 and/or the heating body 20 . In order to facilitate demolding, an auxiliary member 70 similar in structure to the stamping member 60 shown in FIG. 9 may be provided, and the protrusion 71 is formed on the auxiliary member 70 . The specific steps may include: completing the installation of the auxiliary part 70 and the mold, wherein the protrusion 71 of the auxiliary part 70 protrudes from the inner wall of the mold cavity 80; filling the mold cavity 80 with a material (the material of the material is a porous ceramic body according to the production process). 10 and/or the heating body 20), when the material fills the space of the mold cavity 80, due to the limitation of the plurality of protrusions 71, the material surrounds the plurality of protrusions 71, that is, the plurality of protrusions 71 define The shape of the escape hole 50; after the material in the mold cavity 80 is solidified and formed, the auxiliary part 70 and the mold are removed to obtain the desired atomizer.

In this embodiment, a mold is used to make the escape hole, the shape of the escape hole is highly controllable, and the atomization efficiency of the atomizer can be ensured. The structure of the mold is simple, the process is simple, and the operation is easy.

What is disclosed above is only a preferred embodiment of the present disclosure, and of course, it cannot limit the scope of rights of the present disclosure. Those of ordinary skill in the art can understand that all or part of the process of realizing the above-mentioned embodiment is not limited by the right of the present disclosure. The equivalent changes required to be made still belong to the scope covered by the invention.

Claims

An atomizer, characterized in that it includes a porous ceramic body and a heating body, the porous ceramic body includes a liquid-conducting area and an atomizing area, and liquid is introduced into the atomizing area through the liquid-conducting area, and the heating body for heating the porous ceramic body, so that the liquid is heated and atomized in the atomization zone;

Wherein, the shell of the atomizer is formed with an escape hole, and the particles formed by the liquid atomization escape the atomizer from the escape hole, and along the depth direction of the escape hole, the escape hole The width dimension of the bottom of the outlet hole is not greater than the width dimension of the opening.
The atomizer according to claim 1, wherein, along the depth direction of the escape hole, the width dimension of the escape hole gradually increases from the bottom to the opening.
The atomizer according to claim 1 or 2, wherein the heating body covers the surface of the atomization area, and the escape hole is formed on the heating body and communicates with the atomization area.
The atomizer according to any one of claims 1 to 3, wherein the escape hole is formed on the surface of the atomization area, and the heating body covers part of the surface of the atomization area.
The atomizer of claim 4, wherein the escape hole is formed in an area of the surface of the atomization zone that is not covered by the heating body.
The atomizer according to any one of claims 1 to 5, wherein the shape of the longitudinal section of the escape hole is any one of the following:

Circle, oval, triangle, rectangle, inverted trapezoid, waveform.
An electronic cigarette, characterized by comprising the atomizer according to any one of claims 1 to 6.
A method for manufacturing an atomizer, characterized in that the atomizer includes a porous ceramic body and a heating body, the porous ceramic body includes a liquid conducting area and an atomizing area, and liquid is introduced into the an atomization zone, wherein the heating body is used to heat the porous ceramic body, so that the liquid is heated and atomized in the atomization zone;

The manufacturing method of the atomizer includes:

An escape hole is formed in the shell of the atomizer, and the particles formed by the liquid atomization escape from the escape hole from the atomizer, so that along the depth direction of the escape hole, the escape hole The width dimension of the bottom of the outlet hole is not greater than the width dimension of the opening.
The method for manufacturing an atomizer according to claim 8, wherein an escape hole is formed in the shell of the atomizer, so that along the depth direction of the escape hole, the width dimension of the escape hole is It gradually increases from the bottom to the opening.
The method for manufacturing an atomizer according to claim 8 or 9, wherein the heating body covers the surface of the atomization zone, and the method for manufacturing the atomizer comprises:

The escape hole is formed on the heating body, and the escape hole communicates with the atomization area.
The manufacturing method of an atomizer according to any one of claims 8 to 10, wherein the manufacturing method of the atomization zone comprises:

forming the escape hole on the surface of the atomization zone;

The heating body is printed on the surface of the atomization layer, and the heating body covers part of the surface of the atomization area.
The method for manufacturing an atomizer according to claim 11, wherein the escape hole is formed in an area of the surface of the atomization zone that is not covered by the heating body.
The method for making an atomizer according to any one of claims 8 to 12, wherein an escape hole is formed in the shell of the atomizer, comprising:

The housing of the atomizer is ground so that the sharp corner structures at the opening of the escape hole collapse due to stress concentration.
The method for making an atomizer according to any one of claims 8 to 12, wherein an escape hole is formed in the shell of the atomizer, comprising:

The escape holes are fabricated through exposure, development and etching processes.
The method for manufacturing an atomizer according to any one of claims 8 to 12, wherein an escape hole is formed in the shell of the atomizer, comprising:

providing an imprint including a plurality of microneedles;

The nebulizer is imprinted using the stamp, and a plurality of the microneedles are embedded in the nebulizer to form the escape holes.
The method for manufacturing an atomizer according to any one of claims 8 to 12, wherein an escape hole is formed in the shell of the atomizer, comprising:

A mold is provided, the mold includes a mold cavity and a plurality of protrusions protruding from the inner wall of the mold cavity; the mold cavity is filled with material to mold the atomizer, during the molding process by means of all The protrusion forms the escape hole in the casing of the atomizer.