WO2019137099A1

WO2019137099A1 - Atomization core and manufacturing method therefor

Info

Publication number: WO2019137099A1
Application number: PCT/CN2018/116760
Authority: WO
Inventors: 胡廷东; 谭会民
Original assignee: 深圳市新宜康电子技术有限公司
Priority date: 2018-01-13
Filing date: 2018-11-21
Publication date: 2019-07-18

Abstract

Provided are an atomization core (3), a manufacturing method therefor, and an atomization generation device (1000) of an electronic cigarette, the atomization core (3) comprising a main body (1) composed of crystalline grains, and a heating atomization layer (2) arranged on a second surface (102) of the main body (1), wherein the main body (1) is composed of crystalline grains and is provided with a first surface (101) and the second surface (102) arranged opposite one another; ventilation pores (111, 121, 131) communicating the first surface (101) and the second surface (102) for a fluid (14) to pass through are provided between the crystalline grains in the thickness direction; the ventilation pores (111, 121, 131) between the crystalline grains of the main body (1) become smaller from the first surface (101) to the second surface (102) of the main body (1); when the first surface (101) of the main body (1) is designed to be in contact with a liquid, the liquid enters the pores between the crystalline grains of the main body (1) from the first surface (101) and flows through the pores to the second surface (102); and in the process of the liquid flowing, since the pores between the crystalline grains in the main body (1) become smaller from bottom to top, the speed of the fluid (14) flowing upwards gradually increases, the pressure gradually increases, and the fluid finally reaches the upper surface of the main body (1) to be atomized under a high speed and a high pressure. It is possible for the atomization generation device (1000) of an electronic cigarette to be a sheet-type and/or negative pressure-type vapor generation device.

Description

Atomizing core and manufacturing method thereof

Technical field

The invention relates to the field of electronic cigarettes, in particular to an atomizing core and a manufacturing method thereof.

Background technique

A ceramic atomizer currently used, the atomizing portion of the electronic cigarette, that is, the atomizing core of the atomizer comprises a ceramic body, and a heating wire embedded in the ceramic body, a part of the heating wire is exposed on the surface of the ceramic body (See Figures 1 and 2). This atomizer heating wire (consisting of a resistance wire) is integrally formed with ceramic. However, since the ceramic body of the prior art is generally formed by baking a ceramic and a resistance wire (heating wire) together, it is fired. Due to the limitation of the metal material of the electric resistance wire, it will melt at more than 1000 degrees, so the firing temperature is generally between 800 and 900 ° C. The temperature of the sintered mineral material is not strictly porcelain, and the prior art The basic mineral material of the ceramic body does not change or form recrystallized after the paper is burned. That is, the integral molding simply integrates the particle structure, so it is not strong, and it is easy to break down under repeated high temperature work. , will be inhaled by the user, there is a potential hazard.

In addition, when the heating wire heats up, the surrounding oil is atomized. The size of the internal particles and/or the pores is the same, and the oil can flow through the uniform pores between the particles inside the ceramic body. If the power of the heating wire is large, the required hole diameter is large, and the ceramic with a larger hole diameter can easily leak oil when the oil is supplied; however, if a ceramic body with a smaller hole diameter is used, there is a possibility that the oil supply is insufficient. Causes the heating wire to dry.

Summary of the invention

The object of the present invention is to overcome the defects of the prior art atomizing core, in particular, when a ceramic atomizing core is used instead of the oil guiding cotton, there are problems of oil leakage and dry burning respectively due to a larger or smaller aperture. The structure does not automatically adapt to the pressure difference, and in order to improve the atomization efficiency, it is necessary to make the atomized smoke oil most likely to be volatilized from the atomization core, so the present invention provides an automatic adjustment of the pressure difference and atomization. A more efficient self-adjusting intelligent atomizing core and an atomizing device comprising such an atomizing core.

An atomizing core (3) comprising: a body having opposite first and second surfaces, and an open pore for communicating fluid through the first surface and the second surface, The size of the open air pores is reduced from the first surface to the second surface; heating the atomization layer, the heating atomization layer is disposed on the second surface for heating and atomizing the liquid flowing into the body from the first surface .

The body is composed of a crystal grain, a pitch of the first surface and the second surface is a thickness of the body, and the crystal grains are layered in a thickness direction between the first surface and the second surface, the body including at least two crystal grains The layer, the at least two seed layers have different intergranular pore sizes.

The body is composed of a crystal grain whose size is reduced from the first surface to the second surface in the thickness direction.

The body is composed of a crystal grain, a pitch of the first surface and the second surface is a thickness of the body, and the body includes a first seed layer sequentially distributed from the first surface to the second surface in a thickness direction of the body, and a second a grain layer and a third seed layer, the porosity is defined as the ratio of the void between the grains of the layer to the volume of the layer of the layer in which the grains are located, and the porosity of the first layer is Q1. The porosity of the second seed layer is Q2, the porosity of the third seed layer is Q3, and the body is set to Q1>Q2>Q3.

The heating atomization layer comprises a heating atomizing resistor or an electromagnetic induction heating member. When the heating atomization layer is a heating atomizing resistor, the method further comprises two electrode regions disposed on the second surface, wherein the two electrode regions are respectively connected The first and second housings are respectively electrically connected to the two electrode regions; When the heating atomization layer is an electromagnetic induction heating element, the heating atomization layer is a metal piece disposed on the second surface, and the metal piece is provided with a vent hole for the atomized smoke oil to flow out.

The first surface has a fluid preheating layer.

The fluid preheating layer further comprises a liquid inlet and a preheating body with a preheating resistor. When the preheating body in the preheating layer is in operation, the liquid inlet is closed, so that the liquid flows directly to the second surface after being heated. When the preheating body in the preheating layer is not working, the liquid inlet opening is opened to facilitate liquid entering the preheating layer for the next work.

A heating body is disposed on at least one of the seed layers.

The main body is made of a ceramic material, and the main body has a sheet shape or a ring shape. When the main body is annular, the first surface and the second surface are annular surfaces which are oppositely disposed inside and outside, and the thickness is in the radial direction of the ring.

A method for fabricating an atomizing core, comprising the steps of:

Providing at least two ceramic grain layers, wherein the at least two ceramic grain layers are placed in order of pore size between the grains, the at least two ceramic grain layers after being disposed contain a predetermined thickness, The outer surface perpendicular to the thickness respectively forms a first surface and a second surface of the body, wherein a size of intergranular pores of the ceramic grain layer adjacent to the first surface is larger than a size of intergranular pores of the ceramic grain layer adjacent to the second surface;

Place the placed ceramic grain layer at a high temperature for calcination, recrystallize, fix the at least two ceramic grain layers together, and then cool;

Configuring a heating atomizing resistor on the second surface of the body;

The obtained ceramic body including the heating atomizing resistor is sintered at a high temperature in an oxygen-free environment, and then cooled.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

Figure 1 is a schematic view of a ceramic atomizer according to the prior art;

2 is a schematic view showing the structure of crystal grains in a ceramic according to the prior art;

Figure 3 is a schematic view showing the structure of crystal grain recrystallization in an atomizing core according to the present invention;

Figure 4 is a side elevational view of the thickness of the atomizing core in accordance with the first embodiment of the present invention;

5 is a perspective view of a sheet-shaped atomizing core not including a housing according to an embodiment of the present invention;

Figure 6 is an exploded perspective view of the sheet-shaped atomizing core and the casing according to Figure 5;

Figure 7 is a front elevational view of a sheet-shaped atomizing core in accordance with a first embodiment of the present invention;

Figure 8 is a cross-sectional view of the sheet-shaped atomizing core in the thickness direction according to the first embodiment of the present invention;

Figure 9 is a partial enlarged view of Figure 8;

Figure 10 is a cross-sectional view of a ring-shaped atomizing core body in a thickness direction according to another embodiment of the present invention;

11-12 are schematic views showing the structure of a first embodiment and a second embodiment of an atomizing device containing a preheating layer according to the present invention, and comprising a first embodiment of the atomizing core of the atomizing core of the present invention;

Figures 13, 14 and 15 respectively show first, second and third structural schematics of an atomizing core thermal force propelling fluid atomizing device with a body grain layer heating body in accordance with the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

1 and 2 are schematic views showing ceramic internal crystal grains of a prior art ceramic atomizer and atomizer, respectively. The prior art atomizing core 1' of Figures 1 and 2 comprises a ceramic body 2' and a heating wire 3', a portion of which is embedded in the body and the other portion is exposed outside the body. The heating wire is integrally formed with the ceramic, and the heating wire metal melts more than 1000 degrees. Therefore, as shown in FIG. 2, the internal grain structure of the ceramic body of the prior art atomizing core is not changed, that is, the integral molding is simply to form the crystal grains. The structure is integrated.

Fig. 3 is a schematic view showing the structure of the internal body of the atomizing core 3 according to the present invention. The basic function of the atomizing core body of the electronic cigarette is to guide the oil and provide the atomizing working substrate. Therefore, the following commonalities are met: high temperature resistance (working temperature normal temperature to 350 degrees, dry burning state extreme temperature of about 600 degrees); There is a certain gap; it can seal the oil. When it is not working, the surface tension of the smoke oil can be used to contain the oil inside, and it will not flow into the airway. It is non-toxic and cannot be decomposed when working (especially at high temperature). Human toxic substances, including oxides or heavy metals. In addition, the main material needs to meet the conditions of no odor, and no foaming after heating.

In general, the host material that satisfies the above conditions may be composed of a mineral material, usually a ceramic material. There are many raw materials that can be made into ceramics. In addition to aluminum oxide, zirconia (ZrO2), silicon dioxide (SiO2), silicon carbide (SiC), etc. can be made into ceramic substrates, which can satisfy most of the above commonalities. But the production costs are different. Preferably, the ceramic material may consist of a powder of aluminum oxide.

Advantageously, the grain structure of the atomized core body of the present invention is different from the grain structure of prior art atomized core ceramic bodies. In the case where the atomized core body crystal grains according to the present invention are sintered at 1200 degrees, the crystal grains undergo recrystallization and are fused together. In other words, whether the material before sintering, such as a ceramic material, is porous or polycrystalline, the resulting ceramic body contains a recrystallized ceramic grain structure. Secondly, the pores between the crystal grains of the atomizing core body according to the present invention are no longer the same, and will be described in detail below with reference to Figs. 7-9.

Referring now to Figure 4, there is shown a side view of a first embodiment of an atomizing core in accordance with the present invention. The atomizing core 3 includes a main body 1 and a heating atomization layer 2. The body 1 has a first surface 101 and a second surface 102 disposed opposite each other, and the pitch of the first surface 101 and the second surface 102 is the thickness of the body. In Fig. 4, the first surface is below and the second surface is above. The heating atomization layer 2 is disposed on the second surface 102, that is, the upper surface of the body 1. The first embodiment of the atomizing core is in the form of a sheet or a flat plate.

The heating atomization layer 2 is composed of a heat-generating resistor material, which needs to meet the high temperature resistance, cannot be blown under the working environment (within 350 ° C), and cannot be blown under the transient high temperature condition (during dry burning), can be electrically conductive, the resistance is controllable and the error High precision, such as 0.1 ohm, non-toxic substances, when working (especially at high temperatures) can not decompose the production of substances that are toxic to humans, including oxides or heavy metals. Most of the metals that can satisfy the resistance are noble metals such as platinum group elements, gold, silver, and alloys thereof.

According to a first embodiment, as shown in Figures 4-6, the heated atomization layer 2 is comprised of a thermal atomizing resistor 20, typically a printed resistor. The use of printing resistors has the advantage of cost and production, that is, it can mechanize mass production in both molding and printing, and the cost is relatively low. The sheet-shaped atomized core shown in Fig. 4-6 is generally a flat printing, and the planar ceramic substrate can be made into a plurality of finished ceramic crystal structure sheet-shaped atomizing core bodies from one mold blank. For other embodiments, such as a toroidal atomizing core, a single cylinder printing can also be used, such as molding a cylindrical atomizing core body from a barreled ceramic substrate.

The printed resistor can include a plurality of printed strips. The strip-shaped printing strip has the advantages of convenient control of the resistance value and ease of molding, and also facilitates the upward flow of the smoked oil after the atomization. In a preferred embodiment, the printed resistor 20 is silver or palladium, or a mixture of silver and platinum. Preferably, the printed resistor can be sintered on the ceramic body by high temperature after screen printing.

It will be understood by those skilled in the art that when the electric resistance 20 of the heating atomization layer 2 is heated, the fluid 14, such as smoke oil, flows from the first surface 101 (upstream) into the main body 1 (middle) and flows to the second surface 102 (downstream) and The second surface is heated and atomized by the electric resistance 20 of the heat atomizing layer 2.

5-6 are perspective views of a first embodiment of an atomizing core in accordance with the present invention, wherein FIG. 6 includes a housing. In the present embodiment, the atomizing core 3 is in the form of a sheet or a flat plate, and the flat ceramics facilitate the printing of the electric heating wire, and the flat ceramic molding and firing are also simple, which is convenient for mechanization and low in cost. In addition to the quadrilateral shown in the figure, it may be a polygon such as a triangle or a pentagon, and an ellipse. As shown in FIG. 6, the first casing 5 and the second casing 6 are provided on both sides of the main body 1, respectively. The first housing 5 and the second housing 6 cover the main body 1.

Referring to Figure 7, a front elevational view of a first embodiment of an atomizing core is shown. The second surface of the atomizing core body, that is, the upper surface is further provided with two

electrode regions

14, 15, which are respectively connected to both ends of the heating atomizing resistor 20. Furthermore, although not shown in FIG. 7, the two electrode regions may be electrically connected to the first housing 5 and the second housing 6, respectively. The two electrode regions are respectively connected to the positive and negative poles of the power source, so that the power source is guided to the heating atomizing resistor 20 through the electrode region to generate heat to atomize the smoke oil flowing from the first surface through the body into the second surface.

Figure 8 is a cross-sectional view of the first embodiment of the atomizing core body according to the present invention in the thickness direction, i.e., showing the ceramic

ceramic bodies

11, 12, 13 from the first embodiment of the first embodiment of the atomizing core 3 according to the present invention. The surface to the second surface direction, that is, the grain structure along the thickness direction of the body, particularly the grain size and the pore size, that is, the change in the size of the pores (111, 121, 131). The inter-crystalline pores communicate with the first and second surfaces in the thickness direction of the body to form open pores for passage of the fluid.

It will be understood by those skilled in the art that the grain structure and the size of FIG. 8 and FIG. 9 and FIG. 11 and FIG. 12 are the schematic cross-sectional views, which are related to the grain structure and size of the actual product. Not exactly match.

For example, the grain boundaries (after sintering recrystallization) may be different from the illustration, that is, irregular circular and/or irregular shapes. For example, in a layered grain structure, the actual formed grain layering may not be a straight line as illustrated, but an irregular curve. For example, in an embodiment in which the change in pore size from the first surface to the second surface is achieved by a layered structure, the grain shape of the same layer initial state is substantially the same, but allows a difference in shape size after recrystallization. In the embodiment in which the change in pore size from the first surface to the second surface is achieved by a non-layered structure, the schematic diagram only shows the tendency of the pore change, rather than limiting the specific grain distribution rule. For another example, even if the grain size in the layered grain structure is substantially the same, the cross-sectional line does not completely coincide with the diameter of each grain, so that the same grain boundary size is significantly different, that is, the cross-sectional schematic view of the crystal The position of the particle distribution and the size of the section are different from those of the actual product section. The above various schematic diagrams are to be considered as merely illustrative of the invention and are not intended to limit the scope of the invention.

Referring to Figure 9, an enlarged view of the structure of the

internal crystal grains

11, 12, 13 of the main body 1 is shown. 9 shows that the size of the grain pores in the body 1 gradually decreases from the first surface 101 to the second surface 102, and the size of the

grains

11, 12, 13 of the body 1 can also be from the first surface 101 to the second surface. 102 gradually becomes smaller.

In a preferred embodiment, the body 1 may comprise at least two seed layers, each of which is composed of grains having a uniform pore size and/or the same size. The thickness of the two ceramic layers is the thickness of the atomizing core body. The opposite outer surfaces of the two ceramic layers in the thickness direction form first and second surfaces of the atomizing core body. As shown in Figures 8-9, the atomized chip-shaped body includes die

layers

110, 120, and 130 that are sequentially stacked from top to bottom.

In the embodiment shown in FIG. 10, the main body of the main body is annular, the atomizing core body is substantially annular, and the two crystal grain layers are sequentially arranged from the inside to the outside or from the outside to the inside, and the two crystal grain layers are in the thickness direction, that is, The oppositely disposed inner and outer annulus faces in the annular radial direction form the first and second surfaces of the atomizing core body. For the annular atomizing core, a single cylinder printing can be used, such as molding a cylindrical atomizing core body with a barrel ceramic substrate.

Regardless of the shape of the body and the number of crystal grains in the body, the pore size between the main crystal grains gradually decreases from the first surface to the second surface. Advantageously, the bulk grain size of the main body layer is also from the first The surface gradually becomes smaller toward the second surface.

The embodiment of the atomizing core body 1 shown in FIGS. 8-9 includes at least two ceramic seed layers, referred to as ceramic layers, a first ceramic layer 110, a second ceramic layer 120, and the first ceramic layer 110 is located at the second Above the ceramic layer 120, the open pores between the crystal grains 11 in the first ceramic layer 110 are denoted by 111, the pore size is Q1, and the open pores between the crystal grains 12 in the second ceramic layer 120 are labeled as 121, the pore size is Q2. Of course, the function of the open pores is to allow the passage of the smoke oil, and the first ceramic layer and the second ceramic layer are arranged to satisfy Q1 < Q2, that is, the throughput of the smoke oil per unit area per unit time is that the first ceramic layer is smaller than the second ceramic layer. The main body 1 may further include a third ceramic layer 130 under the second ceramic layer 120. The open gas pores between the crystal grains 13 in the third ceramic layer 130 are 131, and the pore size is Q3, the arrangement of the three ceramic layers satisfies Q1<Q2<Q3, that is, the throughput of the smoke oil per unit area per unit time is that the first ceramic layer is smaller than the second ceramic layer, and the second ceramic layer is smaller than the third ceramic layer. The ceramic layer including the first surface of the main body has the largest open pore size and the largest amount of smoke oil per unit area per unit time, and the ceramic layer including the second surface of the main body has the smallest open pore size and the smoke oil per unit area per unit time. The amount of passing is minimal. It will be understood by those skilled in the art that the seed layer can be designed as two layers, three layers, or even four layers, five layers or more. In the present embodiment, three layers are taken as an example for description. The above description about the main body, the heat generating atomization layer, the casing and the electrodes is applicable to the case of at least two crystal grain layers.

Those skilled in the art can understand that the atomization core 3 can be made by referring to the following steps:

Providing at least two ceramic grain layers, wherein the at least two ceramic grain layers are placed in descending order of pore size between the grains, and the at least two ceramic grain layers after the placement contain a predetermined thickness The outer surface perpendicular to the thickness respectively forms the first surface 101 and the second surface 102 of the body, wherein the intergranular pore size of the ceramic grain layer adjacent to the first surface 101 is larger than the grain size of the ceramic grain layer adjacent to the second surface 102 The pore size is set; the placed ceramic grain layer is subjected to high temperature baking, recrystallization, the at least two ceramic grain layers are fixed together, and then cooled; and the heating atomizing resistor 20 is disposed on the second surface 102 of the main body 1. The obtained ceramic body 1 including the heating atomizing resistor 20 is sintered at a high temperature in an oxygen-free environment, and then cooled. The heated atomization printed resistor 20 can be sintered on the ceramic body 1 by high temperature after screen printing.

In the present invention, the grain pore size, that is, the pore value, can be understood as a pore diameter value, that is, a maximum one-dimensional pore diameter value which is substantially perpendicular to a fluid flow direction between adjacent crystal grains, or a pore area, that is, an adjacent crystal grain. The maximum two-dimensional pore area of the intergranular pores in a plane substantially perpendicular to the direction of fluid flow, or the porosity, that is, the three-dimensional volume of the inter-granular pore portion per unit volume. The pore size of the intergranular open gas satisfies the variation rule along the fluid flow direction and becomes the same defined standard of the open gas pore size.

Further, in the present invention, a grain generally refers to a solid or mineral (mine) which is sintered or recrystallized to form solid particles or particles, and may have a regular or irregular geometry. The grain structure in the present invention generally refers to a solid (mineral material) sintered by mineral or any other material which is formed by recrystallization, and has a porous pore (a basic rule of pore shape) with a gradual increase in pore size connecting two opposite surfaces or Polycrystalline (crystalline formally regular) material. The specific shape of the interparticle pores or microparticles does not limit the scope of the invention and is within the scope of the invention.

The change in thickness of the open-air pores can be achieved by at least two layers of grain having different grain sizes, that is, at least two grain layers containing grains of different sizes are layered along the thickness and fired together. Moreover, those skilled in the art will appreciate that in order to achieve a change in porosity, it is not limited to the specific embodiment in which the seed layer is layered.

Advantageously, the present invention employs a secondary sintering process in which the ceramics meeting the ceramic structure requirements of the present invention are first fired and then the electrical resistance materials are again sintered together at the desired resistance. Since the ceramic is sintered at a high temperature of 1200 °, the metal will melt or be highly oxidized at this temperature, and secondary sintering is used, and the sintering temperature is controlled within 1200 ° in consideration of the characteristics of the metal in the second sintering. Does not destroy the performance of the original ceramic substrate, and does not cause oxidation of the metal.

11 and 12 depict a schematic structural view of two embodiments having a fluid preheating layer 30. Advantageously, the fluid preheating layer 30 is disposed in a first surface fluid upstream direction. Providing the heating atomization layer 2 on the body second surface 102 of the flow destination of the fluid 14 can cause the mist of the oil 14 reaching the second surface 102 by the capillary action of the crystal pores and the negative pressure generated by the usual smoking action (mouth suction). Chemical.

In the prior art, the atomized smoke oil in the ceramic body will squeeze the smoke oil adsorbed in the ceramic body outward due to the expansion, not only causing the smoke oil that has been adsorbed in the ceramic body to overflow outward, affecting The flow velocity of the fluid to the second surface and the smoked oil that has been atomized cannot be completely volatilized. Only the heating wire outside the ceramic body can volatilize the atomized smoke oil, thereby causing low atomization efficiency, and The volatile efficiency of the smoke oil is low, which seriously affects the taste of the user and the atomization efficiency of the next smoke oil.

In order to speed up the fluid flow rate, increase the amount of atomized soot oil and atomization efficiency, the smoke oil 14 can be preheated in the upstream direction of the fluid flow. The speed of the preheated fluid entering the main body and the main body to the second surface is increased, so that the supply of the tobacco oil and the amount of atomization can be increased per unit time to better satisfy different usage habits, such as fogging during lung suction. The requirements for the amount of smoky oil and atomization efficiency are higher.

In the first embodiment of the preheating device shown in FIG. 11, the atomizing core 3 has a fluid preheating layer 30 disposed on the first surface 101 (the lower surface in the drawing) of the main body 1, and the fluid preheating layer 30 can be Use with liquid supply equipment (not shown in the liquid supply equipment). A preheating resistor 4 is disposed in the fluid preheating layer 30, and the preheating resistor 4 can be directly disposed on the first surface 101 (lower surface) of the main body 1, and can be sintered to the main body 1 by silk screen printing and high temperature. a surface.

In use, the liquid is introduced into the preheating layer near the first surface of the body and preheated by a preheat resistor. By heating the liquid in the vicinity of the preheating layer, the liquid is thermally expanded, and the heated liquid moves upward, into the body 1, and flows upward along the pores between the grains in the body 1, due to The porosity of the main body 1 decreases from bottom to top, that is, the pore value between the crystal grains in the main body 1 decreases from bottom to top, so the velocity of the liquid gradually increases and the pressure gradually increases during the upward flow. Finally, it is sent to the upper surface of the main body 1 for heating and atomizing the heat atomizing resistor 20, and the smoked oil which is atomized on both sides of the heating atomizing resistor 20 is directly volatilized from the upper surface of the main body 1, and is located at Since the atomized smoke oil on the lower side of the heating atomizing resistor 20 has a high speed and pressure, the atomized smoke oil will continue to move upward or obliquely upward to facilitate the evaporation of the smoke oil from the main body 1 after atomization. Come out, and the following high-speed movement of the smoke oil can prevent the smoke oil from flowing down, improve the volatilization efficiency of the smoke oil, and enhance the taste. Pushed by the heat of the preheating layer, the amount of smoke oil flowing into the atomized layer per unit time increases to increase the amount of atomized smoke oil. An open preheating zone is formed in the area close to the main body preheating layer, and the open preheating layer design can effectively reduce the production and maintenance cost and meet the demand of larger smoke oil atomizing flow.

Comparing the first embodiment shown in FIG. 11, the fluid preheating layer 30 in the second embodiment of FIG. 12 is a semi-closed design, that is, the outer surface of the first surface of the main body is surrounded by a semi-closed fluid preheating layer 30, which may also be called It is the control room and communicates with the liquid supply device through the openable inlet. The semi-closed design can accurately control the amount of preheated soot oil, improve the atomization efficiency of the soot oil, and provide a continuous uniform atomization flow rate to improve the user experience.

Preferably, the fluid preheating layer 30 of the second embodiment of the preheating device shown in FIG. 12 is provided with a preheating body 32 and a liquid inlet 33, and when the preheating body 32 in the preheating layer 30 is in operation, The liquid inlet port 33 is closed to enclose a certain amount of liquid in the preheating layer, so that the heated quantitative liquid is further pushed by the heat to the second surface. When the preheating body 32 in the preheating layer 30 is not working, the liquid inlet opening is opened, so that the liquid to be preheated enters into the semi-closed preheating layer 30, facilitating the next preheating and atomization repeated working cycle. . The preheating body 32 is generally a preheating resistor.

Preferably, the fluid preheating layer 30 is provided with an oil inlet groove 31 for uniformly introducing the liquid supplied at the liquid inlet port 33 into the fluid preheating layer 30 for preheating, and the preheating body 32 is disposed in the liquid inlet tank 31. The liquid in the liquid inlet tank 31 is heated. A side wall of the liquid inlet tank 31 connects the lower surface of the main body 1. An automatic valve 34 may be provided at the inlet port 33 to control the amount of liquid flowing into the preheating layer in the liquid supply apparatus. When the heating atomizing resistor (generally the printing resistor) 20 is turned on, the automatic valve 34 is closed, and the preheating body 32 heats the liquid in the preheating layer inlet tank 31; when the heating atomizing resistor 20 does not work At this time, the automatic valve 34 is opened to allow the liquid to enter the preheating layer, at which time the preheating body 32 and the heating atomizing resistor 20 do not operate. The atomizing resistor 20 is heated, and the automatic valve 34 and the preheating body 32 can be controlled by a circuit board, and can also be controlled by a chip or an IC. And it can be disposed on the first surface of the main body as shown in FIG.

The position of the preheating body 32 may be disposed on the first surface of the main body as shown by the preheating resistor 4 of FIG. In order to ensure the liquid contact area of the first surface of the main body, increase the preheating area and enhance the effect of the fluid pushing the second surface by thermal force, preferably, the preheating body 32 may be disposed at the bottom of the oil inlet groove 31 as shown in FIG.

For the first embodiment of FIG. 11, the preheat resistor 4 disposed on the first surface of the body 1 can be sintered to the first surface of the body 1 by screen printing and high temperature.

Corresponding to the design of the atomizing core 3 of the fluid-containing preheating layer 30, the manufacturing method of the atomizing core 3 may further include the following steps: in the step c, the preheating resistor 4 or the preheating body 32 is disposed on the first surface 101, Then, the step of sintering at a high temperature in an oxygen-free environment is such that a printing resistor is disposed on the second surface of the main body, and the first surface is provided with a preheating resistor or a preheating body, and then subjected to high temperature sintering in an oxygen-free environment. Recrystallization.

Further, after step d, a preheating resistor is silk-printed on the lower surface of the lowermost ceramic layer and then sintered at a high temperature in an oxygen-free environment. The design is to first set a printing heating atomizing resistor on the second surface of the ceramic layer, then high temperature sintering in an oxygen-free environment, cooling, and then preheating resistors on the first surface of the ceramic layer, and then high temperature in an oxygen-free environment. Sintering, cooling.

In order to increase the fluid flow rate and the atomization efficiency, it is particularly advantageous to provide a seed layer heating body on at least one of the seed layers. As shown in FIGS. 13-15, preferably, a

heating body

112, 122, 132 may be disposed in the upstream direction of each of the seed layers 110, 120, 130, instead of or in combination with the fluid preheating layer 30 for preheating and fogging. Enhanced effect.

For example, in the main body design of the two ceramic seed layers, a first heating body 112 may be disposed at the bottom of the first ceramic layer 110, and the preheating body is located at the bottom of the second ceramic layer 120, and may also be called For the second heating body 122, the liquid or the oil in the preheating layer 30 is heated by the second heating body 122, which is the preheating body of the bottom of the second ceramic layer 120. The liquid is heated and then expanded and moved upwards. To the second ceramic layer 120, when the liquid reaches the top of the second ceramic layer 120, the first heating body 112 located at the top of the second ceramic layer 120, that is, at the bottom of the first ceramic layer 110, simultaneously heats the portion of the liquid The liquid enters the pores between the crystal grains in the first ceramic layer 110 from the pores between the crystal grains in the second ceramic layer 120. Since Q1 < Q2, the velocity of the liquid flow becomes large, and the pressure thereof is also increased. At the bottom of the first ceramic layer 110, this portion of the liquid is again provided with a continuous thermal driving energy, and this portion of the liquid continues to rise, moving upward, into the upper portion of the first ceramic layer 110, at the upper portion of the first ceramic layer 110. Screen printing resistor 20 plus Atomizing, volatilized from the first ceramic layer 110.

In the main body design of the three ceramic seed layers, it is also possible to design a third heating body 132, which is a preheating body, which is a preheating body, that is, the third heating body 132 is preheated. The layer 30 liquid, i.e., the smoky oil, is heated to allow the smoky oil to be heated into the second ceramic layer 120, after which the motion is the same as above.

Preferably, the above-mentioned seed layer heating body is uniformly disposed in the main body, for example, disposed in a geometrically symmetric manner on the periphery of the main body as shown in FIGS. 13-15.

Preferably, the above-mentioned seed

layer heating bodies

112, 122, 132 may also be provided in combination with the semi-closed design preheating layer preheating body 32 described above. In Figures 13-15, the preheating layer can be the simplified design of Figure 11 or the semi-closed design of 12. When the preheating layer is of a semi-closed design, the preheating layer includes components such as a liquid inlet but is not labeled in FIGS. 13-15 for simplicity of illustration. When the preheating layer is a simplified design, when the first surface of the main body is provided with the seed layer heating body, the crystal layer heating body is equivalent to the preheating layer preheating resistor 4, as shown in FIG.

As shown in FIG. 13, each of the three seed layers includes a seed layer heating body, wherein the third seed layer heating body 132 is equivalent to and replaces the preheating resistor 4 in the simplified design preheating layer shown in FIG. In the embodiment shown in Fig. 14, the first and second seed

layer heating bodies

112, 122 are used in combination with the preheating layer heating body 32 shown in Fig. 11. In the embodiment shown in Fig. 15, each of the three seed layers includes respective seed

layer heating bodies

112, 122, and 132, and is used in conjunction with the preheating layer heating body 32 shown in Fig. 12.

13-15 illustrate different cases of the combination of the seed

layer heating bodies

112, 122, 132 and the fluid preheating layer 30, and the atomizing core 3 according to the present invention is not limited to these combinations.

When the seed layer heating body and the preheating layer heating body are used together, the grain layer heating body and the preheating body simultaneously simultaneously heat the smoke oil in the preheating layer, and preheat the smoke oil in the preheating layer. The speed is faster, the flow rate of the smoke oil in the main body is higher, the atomization aerosol amount is increased, and the atomization efficiency is improved.

In the present design, the first ceramic layer 110, the second ceramic layer 120 and the third ceramic layer 130 are taken as an example for description. Of course, an N-layer ceramic layer may also be disposed, which is sorted from top to bottom by 1, 2, 3, ... , N-1, N, each layer is respectively provided with a grain layer heating body (such as a heating resistor), and is sorted from the top to the bottom by R1, R2, R3, ..., R(N-1), R(N) From above and below, the temperature requirements of the heating resistor are T1, T2, T3, ..., T(N-1), T(N), and the heating requirements are T1 ≤ T2 ≤ T3, ..., T (N- 1) ≤ T (N), in order to achieve layer-by-layer heating, the oil (liquid) is heated in the Nth layer, the liquid enters the N-1 layer, and the N-1 is heated again, until the first layer, As the pores between the grains from bottom to top gradually decrease (ie, the porosity gradually decreases from bottom to top), the flow velocity of the liquid gradually increases, the pressure is gradually increased, and finally the heated mist of the first surface The electric resistance of the resistor 20 is evenly reduced, and the electric energy required for the atomization of the smoked oil can be reduced. Because the liquid reaches the uppermost layer, it has a very high energy, and some may be evaporated without heating, thereby increasing the energy. Utilization, the atomized oil more fully.

The use of the atomizing core 3 of the above structure will be described below.

Taking the embodiment of FIG. 12 as an example, in use, the automatic valve 34 in the fluid preheating layer 30 of the atomizing core 3 is opened, and the smoke oil enters the oil inlet groove 31 through the oil inlet port 33, and penetrates upward from the main body 1, When the user starts to suck, the heating atomizing resistor 20 of the heating atomization layer 2 is turned on to start the working heat, and the oil 14 flowing to the second surface 102 is atomized, and a part of the oil 14 is volatilized through the second surface 102 of the main body 1. Going out, another portion of the heated smoky oil 14 begins to expand, so that the nearby smoky oil is squeezed down and the extruded smoky oil begins to move on the first surface (downward). At the same time, the preheating resistor 44 located in the fluid preheating layer 30 heats the smoky oil 14. Since the automatic valve 34 is in the closed state, the smoky oil 14 of the oil inlet groove 31 starts to move upward after being heated, and enters the main body 1. The smoke oil located in the main body 1 is subjected to upward pressing force and then penetrates upward along the main body 1 to reach the upper portion of the main body 1. This portion of the upwardly moving smoke oil interacts with the downwardly moving smoke oil, which can effectively prevent the smoke oil from being moved upward. The smoked oil that is squeezed in the upper part of the main body 1 moves downward, which greatly improves the volatilization efficiency of the atomized smoke oil. When the smoking is stopped, the automatic valve 34 is opened, and the smoke oil enters the oil inlet groove 31 through the oil inlet port 33, and penetrates upward through the oil inlet groove 31, so that the atomization resistor 20 is atomized next time.

Since the pores between the crystal grains in the main body 1 of the present invention gradually decrease in the direction of the thickness of the tobacco in the thickness direction of the body, this design greatly facilitates the penetration of the smoke oil. When the heating atomizing resistor 20 atomizes the infiltrated soot oil 14, first, the pores between the crystal grains which are gradually reduced in the direction of the fluid flow, that is, from the first surface to the second surface, can prevent the smoke oil. The reverse flow means flowing toward the first surface, since it is difficult for the smoke oil to enter the large pores from a place where the pores are small; moreover, in the embodiment, when the atomizing resistor 20 is heated, the infiltrated smoke 14 is fogged. The fluid preheating layer 30 located in the upstream direction of the flow of the smoky oil 14 can also heat the smoky oil 14 in the oil sump 31, and the heating body in the upstream direction of the at least one seed layer fluid also causes the heated smoky oil to be downstream. The second surface heats the atomized layer 2 to move against the smoke oil 14 which moves in the opposite direction upstream; the combination of the grain structure and the preheating layer and/or the heating body can prevent the smoke oil 14 from flowing backward.

Furthermore, from the energy point of view, after the smoke oil 14 in the oil inlet 31 is heated, it enters a small pore through a place with a large pore, and these upward flowing smoke oil can also release a part of heat, with the gradual increase of the pore diameter. Decreasing, the velocity of the smoke oil flowing downstream is gradually increased, and the heat is gradually released. When the smoke oil enters the second surface 102 of the body 1 (the outer surface of the first seed layer 110), the speed reaches a maximum value, and the pressure is high. As a result, the heat release is increased, and the first oil layer 14 is pushed against the second surface 102. The manner of pushing the second surface may push the atomized smoke oil toward the first surface. The two surfaces, such as upward or oblique upward movement, facilitate the evaporation of the smoke oil from the main body 1 after atomization, thereby greatly improving the atomization volatilization efficiency of the smoke oil. At the same time, after the smoke oil 14 moving to the second surface reaches the first seed layer 110, after the energy is released, the heat released by the next heating atomizing resistor 20 can be absorbed, thereby further improving the utilization of energy and making the taste feelable. Upgrade.

The atomization generating apparatus 1000 according to the present invention will now be described with reference to Figs. 16-19. The atomization generating device has a simple structure and convenient maintenance and operation. When the grain atomizing core needs to be replaced or disassembled, it is directly taken out from the atomizer, and the replacement is simple and the maintenance is convenient. When the atomizer is working, the heat resistance value is convenient to control to avoid dry burning, so as to reduce the impurities of the atomized smoke oil and improve the taste of the smoked oil after atomization.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are included in the spirit and scope of the present invention, should be included in the present invention. Within the scope of protection.

Claims

An atomizing core (3), comprising:

a body having a first surface and a second surface disposed opposite to each other, and an open pore for communicating the first surface and the second surface, the size of the open pore from the first surface to The second surface becomes smaller;

The atomizing layer is heated, and the heating atomizing layer is disposed on the second surface for heating and atomizing the liquid flowing into the body from the first surface.
The atomizing core according to claim 1, wherein said body is composed of a crystal grain, and a distance between said first surface and said second surface is a thickness of said body, and said crystal grain is along said first surface and said second surface The thickness direction is layered, the body includes at least two seed layers, and the at least two crystal layers have different intergranular pore sizes.
The atomizing core according to claim 1, wherein said body is composed of a crystal grain whose size is reduced from said first surface to said second surface in a thickness direction.
The atomizing core according to claim 1, wherein said body is composed of a crystal grain, a pitch of said first surface and said second surface is a thickness of said body, said body comprising from said first surface to a thickness direction of said body The first grain layer, the second seed layer and the third seed layer are sequentially distributed on the second surface, and the porosity is defined as the ratio of the porosity between the grains of the layer to the volume of the layer of the layer in which the grains are located. The first grain layer has a porosity of Q1, the second grain layer has a porosity of Q2, the third grain layer has a porosity of Q3, and the body is set to Q1>Q2>Q3. .
The atomization core according to claim 1, wherein the heating atomization layer comprises a heating atomization resistor or an electromagnetic induction heating member, and when the heating atomization layer is a heating atomization resistor, further comprising: The two electrode regions are respectively connected to two ends of the heating atomizing resistor, and the two sides of the main body are respectively provided with a first housing and a second housing, the first housing and The second housing is electrically connected to the two electrode regions respectively; when the heating atomization layer is an electromagnetic induction heating member, the heating atomization layer is a metal sheet disposed on the second surface, and the metal sheet is opened Ventilation holes for the outflow of smoked oil.
The atomizing core of claim 1 wherein said first surface has a fluid preheating layer.
An atomizing core according to claim 6 wherein the fluid preheating layer further comprises a liquid inlet and a preheating body having a preheating resistor, wherein the preheating body in the preheating layer is in operation The liquid port is closed to facilitate the direct flow of the liquid to the second surface after the heating. When the preheating body in the preheating layer is not working, the liquid inlet opening is opened to facilitate the liquid to enter the preheating layer for the next work.
The atomizing core according to claim 4, wherein a heating body is disposed on at least one of the seed layers.
The atomizing core according to claim 1, wherein said body is made of a ceramic material, said body being in the form of a sheet or a ring, and when the body is annular, the first surface and the second surface are oppositely disposed inside and outside. The annular surface has a thickness in the radial direction of the ring.
The method for fabricating an atomizing core according to any one of claims 1-9, characterized in that it comprises the following steps:

Providing at least two ceramic grain layers, the at least two ceramic grain layers being placed in order of size between the grains, the at least two ceramic grain layers having a predetermined thickness The outer surface perpendicular to the thickness respectively forms a first surface and a second surface of the body, wherein a size of intergranular pores of the ceramic grain layer adjacent to the first surface is larger than a size of intergranular pores of the ceramic grain layer adjacent to the second surface;

- calcining the placed ceramic grain layer at a high temperature, recrystallizing, fixing the at least two ceramic grain layers together, and then cooling;

- placing a heating atomizing resistor on the second surface of the body;

- The obtained ceramic body including the heating atomizing resistor is sintered at a high temperature in an oxygen-free environment, and then cooled.