Atomization method for atomized substrate, atomization core, atomizer and electronic atomization device

Abstract

The present application provides an atomization method, an atomization core, an atomizer, and an electronic atomization device for a substrate to be atomized. The method comprises: guiding the substrate to be atomized to the atomization surface of the porous substrate through the porous substrate of the atomization core; starting the atomization core, and heating the substrate to be atomized through the heating element of the atomization surface; wherein, when the start-up time is between 0-0.2s, the temperature area of ​​150℃-200℃ accounts for ≥10%, and the temperature area of ​​200℃-300℃ accounts for ≥10%; after the start-up time is 1s, the temperature area of ​​150℃-200℃ accounts for ≥15%, the temperature area of ​​200℃-300℃ accounts for ≥15%, and the temperature area greater than 300℃ accounts for ≤10%. The method can promote the release of flavors and fragrances in the matrix to be atomized, improve the aroma coordination of the aerosol formed by the atomization of the matrix to be atomized, and avoid the problem of lack of aroma in the aerosol or the lack of layering, chaos, and aroma; at the same time, it will not increase the energy consumption and cost of the atomization core, nor will it affect the life of the atomization core and the safety of the aerosol formed by atomization.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic atomization, and in particular to an atomization method of a substrate to be atomized, an atomization core, an atomizer and an electronic atomization device. Background Art

[0002] At present, the closed electronic atomization field widely uses coated porous ceramic atomization cores as heating elements to replace traditional cotton cores to heat and atomize the atomization matrix to form an aerosol.

[0003] The concentration and reduction degree of aroma in the aerosol formed by atomization of the existing ceramic atomization core are not as good as those of POD products (i.e., open and oil-filled products) using cotton cores. For the matrix to be atomized with complex flavors, the characteristic aroma of the matrix to be atomized cannot be highly restored, and there are phenomena such as missing characteristic aroma or no sense of hierarchy, chaos, and stuffy aroma. In other words, due to the inability to restore certain characteristic aromas, the aroma coordination of the matrix to be atomized with this flavor is insufficient, resulting in missing aroma or no sense of hierarchy, chaos, and stuffy aroma. For example, if a certain matrix to be atomized is peach-scented white tea, but the tea aroma released is too heavy and the peach aroma is insufficient, the smoker will feel that the aroma cannot come out, and will feel that the aroma is stuffy and cannot be released.

[0004] Currently, the atomization volume and the release of flavors and fragrances in the atomized matrix are generally increased by simply and continuously increasing the output power, thereby improving the smoking experience; however, increasing the output power also leads to problems such as increased energy consumption and cost of the atomization core, shortened life of the atomization core, and reduced safety of the aerosol. Summary of the invention

[0005] The atomization method, atomization core, atomizer and electronic atomization device of the matrix to be atomized provided in the present application are intended to solve the problems that the existing atomization core increases the atomization amount and the release amount of flavors and fragrances in the matrix to be atomized by increasing the output power, which leads to increased energy consumption and cost of the atomization core, shortened life of the atomization core, and reduced safety of the aerosol.

[0006] In order to solve the above technical problems, a technical solution adopted in this application is: to provide an atomization method for a substrate to be atomized. The atomization method includes: guiding the substrate to be atomized to the atomization surface of the porous substrate through the porous substrate of the atomization core; starting the atomization core, and heating the substrate to be atomized through the heating element of the atomization surface; wherein, when the start-up time is between 0-0.2s, the temperature area of ​​150℃-200℃ accounts for ≥10%, and the temperature area of ​​200℃-300℃ accounts for ≥10%; after the start-up time is 1s, the temperature area of ​​150℃-200℃ accounts for ≥15%, the temperature area of ​​200℃-300℃ accounts for ≥15%, and the temperature area greater than 300℃ accounts for ≤10%; wherein, the temperature area ratio refers to the ratio of the atomization area of ​​the corresponding temperature to the effective atomization area, and the effective atomization area refers to the product of the length of the heating element along the first direction and the width of the porous substrate along the second direction, and the first direction is perpendicular to the second direction.

[0007] Among them, when the startup time is between 0-0.2s, the temperature area of ​​150℃-200℃ accounts for 20%-30%, and the temperature area of ​​200℃-300℃ accounts for 20%-30%; the temperature area greater than 300℃ accounts for 0%.

[0008] Among them, when the startup time is between 0-0.2s, the temperature area less than 150°C accounts for ≤60%.

[0009] Among them, after the startup time is 1s, the temperature area less than 150℃ accounts for ≤55%; the temperature area of ​​150℃-200℃ accounts for 18%-25%, the temperature area of ​​200℃-300℃ accounts for 25%-40%, and the temperature area greater than 300℃ accounts for ≤5%.

[0010] Among them, after the startup time is 1s, the temperature area of ​​150℃-300℃ accounts for ≥45%.

[0011] In order to solve the above technical problems, another technical solution adopted in the present application is to provide an atomization core. The atomizer core is used to perform the above-mentioned atomization method of the substrate to be atomized, and the atomizer core includes: a porous substrate and a heating element; wherein the porous substrate has an atomization surface; the heating element is arranged on the atomization surface of the porous substrate, and is used to heat the substrate to be atomized on the porous substrate after the atomizer core is started; wherein, when the start-up time of the atomizer core is between 0-0.2s and the power is 5-8W, the temperature area ratio of 150℃-200℃ is ≥10%, and the temperature area ratio of 200℃-300℃ is ≥10%; after the start-up time is 1s, the temperature area ratio of 150℃-200℃ is ≥15%, the temperature area ratio of 200℃-300℃ is ≥15%, and the temperature area ratio greater than 300℃ is ≤10%; wherein, the temperature area ratio refers to the ratio of the atomization area of ​​the corresponding temperature to the effective atomization area, and the effective atomization area refers to the product of the length of the heating element along the first direction and the width of the porous substrate along the second direction, and the first direction is perpendicular to the second direction.

[0012] The porosity of the porous matrix is ​​60%-65%, and the thermal conductivity of the porous matrix is ​​less than 0.5 m / ck.

[0013] The heating element is a porous structure, and the average pore size of the heating element is 1-5 micrometers, and the porosity of the heating element is 15-40%.

[0014] Wherein, the shortest distance from the heating element to the edge of the porous substrate in the effective atomization area is ≥0.5 mm.

[0015] Wherein, the heating element in the effective atomization area is distributed in a curve shape and defines at least two opposite heating sections; and the shortest distance between each two adjacent heating sections is 0.5-0.8 mm.

[0016] Among them, the shortest distance between each two adjacent heating sections is 0.78 mm.

[0017] In order to solve the above technical problems, another technical solution adopted by the present application is to provide an atomizer. The atomizer includes an atomizer core, which is the atomizer core mentioned above.

[0018] In order to solve the above technical problems, another technical solution adopted by the present application is to provide an electronic atomization device. The electronic atomization device includes: an atomizer and a power supply assembly; wherein the atomizer is the atomizer as mentioned above; the power supply assembly is connected to the atomizer to supply power to the atomizer, so that the atomizer atomizes the substrate to be atomized according to the atomization method mentioned above.

[0019] Beneficial effects of the present application: Compared with the prior art, the present application provides an atomization method for a substrate to be atomized, an atomization core, an atomizer, and an electronic atomization device. The atomization method for a substrate to be atomized guides the substrate to be atomized to the atomization surface of the porous substrate through the porous substrate of the atomization core; then the atomization core is started, and the substrate to be atomized is heated by the heating element on the atomization surface to atomize it to form an aerosol; wherein, when the start-up time is between 0 and 0.2 seconds, the temperature area of ​​150°C to 200°C accounts for ≥10%, and the temperature area of ​​200°C to 300°C accounts for ≥10%; and the start-up time is after 1 second. , the temperature area of ​​150℃-200℃ accounts for ≥15%, the temperature area of ​​200℃-300℃ accounts for ≥15%, and the temperature area above 300℃ accounts for ≤10%; the release of flavors and fragrances in the matrix to be atomized is promoted through the temperature field distribution, and the aroma coordination of the aerosol formed by the atomization of the matrix to be atomized is improved, and the aroma problems such as lack of aerosol or lack of layering, chaos, etc. are avoided; at the same time, compared with the solution of increasing the output power, it will not increase the energy consumption and cost of the atomization core, nor will it affect the life of the atomization core and the safety of the aerosol formed by atomization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of an electronic atomization device provided in one embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of an atomizer provided in one embodiment of the present application;

[0022] Figure 3 A front view of the atomizer core provided in one embodiment of the present application;

[0023] Figure 4 for Figure 3 A side view of the corresponding atomizer core;

[0024] Figure 5 A schematic diagram of the structure of a heating element provided in one embodiment of the present application;

[0025] Figure 6 A schematic diagram of the structure of an atomizer core provided in another embodiment of the present application;

[0026] Figure 7 is a graph showing the relationship between the distance between two adjacent heating sections of the heating element and the temperature;

[0027] Figure 8 A flow chart of a method for atomizing a substrate to be atomized provided in one embodiment of the present application;

[0028] Fig. 9 This is the thermal image at 0.2s after startup;

[0029] Fig.10This is the thermal image at 1 second after startup.

[0030] Description of Reference Numerals

[0031] Electronic atomization device 100; atomizer 200; power supply assembly 300; atomization core 10; nozzle 201; liquid storage chamber 202; atomization chamber 203; liquid inlet hole 204; air flow channel 205; porous substrate 11; effective atomization area A; heating element 12; electrode 121; heating portion 122; first heating section 122a; second heating section 122b; third heating section 122c; first connecting section 122d; second connecting section 122e; third connecting section 122f; fourth connecting section 122g. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0036] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of an electronic atomization device provided in one embodiment of the present application; in this embodiment, an electronic atomization device 100 is provided, which can be used in the technical fields of medical treatment, beauty, electronic cigarettes, home appliances, etc., and is used to heat and atomize the substrate to be atomized to form an aerosol when powered on. Among them, the substrate to be atomized can be a liquid medicine, smoke oil, or any other liquid suitable for electronic atomization formed by a certain drug dispersed in a liquid solvent; and the substrate to be atomized can include a variety of fragrances, for example, including top fragrances, body fragrances, base fragrances, flavoring agents, and cooling agents, so that the aerosol formed by atomization has different aromas.

[0037] like Figure 1 As shown, the electronic atomization device 100 specifically includes an atomizer 200 and a power supply assembly 300 .

[0038] Among them, the atomizer 200 is used to atomize the substrate to be atomized to form an aerosol when powered on. The power supply assembly 300 is electrically connected to the atomizer 200, and is used to supply power to the atomization core 10, so that the atomizer 200 atomizes the substrate to be atomized according to the atomization method of the substrate to be atomized provided in the following embodiments. The power supply assembly 300 can be integrally connected to the atomizer 200 to reduce the failure rate of the aerosol generating device. Of course, the battery assembly and the atomizer 200 can also be detachably connected to facilitate the replacement of the power supply assembly 300 or the atomizer 200, thereby improving the utilization rate of the electronic atomization device 100. The power supply assembly 300 may specifically include a lithium-ion battery.

[0039] Among them, see Figure 2 , Figure 2A schematic diagram of the structure of an atomizer provided in an embodiment of the present application; the atomizer 200 includes a housing (not shown), an atomizer core 10 and a nozzle 201. The housing is formed with a liquid storage chamber 202 and an atomizer chamber 203; the liquid storage chamber 202 is used to store the substrate to be atomized; the liquid storage chamber 202 is connected to the atomizer chamber 203 through a liquid inlet 204. The atomizer core 10 is arranged in the atomizer chamber 203, and is used to heat and atomize the substrate to be atomized that enters the atomizer chamber 203 from the liquid storage chamber 202 to form an aerosol; the aerosol formed by atomization flows out through the airflow channel 205, and is used to suck the aerosol flowing out of the airflow channel 205 through the nozzle 201. When the atomizer 200 is in operation: the matrix to be atomized in the liquid storage chamber 202 enters the atomization chamber 203 through the liquid inlet hole 204, and then reaches the atomization core 10, and then is heated by the atomization core 10 and atomized into an aerosol, and the aerosol reaches the suction nozzle 201 through the air flow channel 205 for the user to inhale. The suction nozzle 201 can be set independently or integrally formed with the shell. Among them, the specific structure and function of the atomization core 10 can refer to the specific structure and function of the atomization core 10 involved in any of the following embodiments; the other structures and functions of the atomizer 200 and the electronic atomization device 100 are the same or similar to the structures and functions of the existing atomizers and electronic atomization devices, and can achieve the same or similar technical effects. For details, please refer to the prior art, which will not be repeated here.

[0040] See also Figure 3 to Figure 4 ,in, Figure 3 A front view of the atomizer core provided in one embodiment of the present application; Figure 4 for Figure 3 The atomizer core 10 specifically includes a porous matrix 11 and a heating element 12. Figure 3 and Figure 4 As shown, the porous matrix 11 has a length along the X direction, a width along the Y direction, and a thickness along the Z direction.

[0041] Among them, the porous matrix 11 has an atomizing surface; the heating element 12 is arranged on the atomizing surface of the porous matrix 11, and is arranged corresponding to the Y direction of the porous matrix 11, and is used to heat and atomize the matrix to be atomized on the porous matrix 11 when power is turned on. Among them, the startup time of the atomizer core 10 is between 0-0.2s, and when the power is 5-8W, the temperature area of ​​the porous matrix 11 of 150℃-200℃ accounts for ≥10%, and the temperature area of ​​200℃-300℃ accounts for ≥10%; after the startup time of the atomizer core 10 is 1s, the temperature area of ​​150℃-200℃ accounts for ≥15%, the temperature area of ​​200℃-300℃ accounts for ≥15%, and the temperature area greater than 300℃ accounts for ≤10%; so as to promote the release of flavors and fragrances in the matrix to be atomized through the temperature field distribution, and improve the atomization formation of the matrix to be atomized The aroma coordination of the aerosol can avoid the problems of aerosol aroma loss or aroma without layering, chaos, etc.; at the same time, compared with the solution of simply increasing the output power continuously, since this process does not need to adjust the output power of the power supply assembly 300 electrically connected to the atomizer core 10, it will not affect the endurance of the power supply assembly 300, will not increase the energy consumption and cost of the atomizer core 10, will not affect the life of the atomizer core 10 and the safety of the aerosol formed by atomization, and can effectively prevent the increase in output power from causing the atomized matrix to be burned, or the generation of odor, fried oil, etc. Among them, the temperature area ratio refers to the ratio of the atomization area of ​​the corresponding temperature to the area of ​​the effective atomization area; the effective atomization area refers to the product of the length L of the projection of the heating element 12 on the porous matrix 11 in the effective atomization area A along the first direction of the porous matrix 11 and the width W of the porous matrix 11 along the second direction; wherein the first direction is perpendicular to the second direction. In the specific atomization process, the working temperature of the effective atomization area A is the highest, and it is the main position for atomizing the substrate to be atomized to form an aerosol.

[0042] In a specific embodiment, when the start-up time of the atomizer core 10 is between 0-0.2s, the temperature area below 150°C accounts for ≤60%; the temperature area between 150°C and 200°C accounts for 20%-30%, the temperature area between 200°C and 300°C accounts for 20%-30%; the temperature area above 300°C accounts for 0%. After the start-up time of the atomizer core 10 is 1s, the temperature area below 150°C accounts for ≤55%; the temperature area between 150°C and 200°C accounts for 18%-25%, the temperature area between 200°C and 300°C accounts for 25%-40%, and the temperature area above 300°C accounts for ≤5%.

[0043] Specifically, when the start-up time of the atomizer core 10 is within 1 second, the temperature area occupied by the porous matrix 11 at 150°C-300°C accounts for more than or equal to 45%, at which time, the flavors and fragrances in the atomized matrix are better released. After 3 seconds of inhalation, the atomized matrix is ​​more fully atomized and the aerosol is fuller.

[0044] It has been verified by experiments that the porosity of the porous matrix 11 is 50%, and the porosity of the heating element 12 is 35%. At this time, due to the large porosity of the heating element 12, the amount of the substrate to be atomized absorbed by the heating element 12 increases, and these substrates to be atomized will have a certain cooling effect on the heating element 12, so that the overall temperature of the effective atomization area A is reduced. At this time, it is necessary to reduce the porosity of the porous matrix 11 to prevent the substrate to be atomized from leaking or absorbing the substrate to be atomized due to the excessively fast liquid conduction. Among them, the porosity can be defined as the percentage of the volume of the pores in the object to the total volume of the material in the natural state.

[0045] In another specific embodiment, the porosity of the porous matrix 11 is 60%, and the porosity of the heating element 12 is 25%; at this time, relative to the above specific embodiment, since the porosity of the heating element 12 becomes smaller, the amount of the substrate to be atomized absorbed by the heating element 12 is reduced, and therefore the cooling effect of these substrates to be atomized on the heating element 12 is weakened, so that the heat generated by the heating element 12 is concentrated, and the overall temperature of the effective atomization area A becomes higher; therefore, it is necessary to increase the porosity of the porous matrix 11, increase the conduction of the substrate to be atomized, and prevent the effective atomization area A from dry burning.

[0046] In another specific embodiment, the porosity of the porous matrix 11 is 70%, and the porosity of the heating element 12 is 20%; at this time, since the porosity of the heating element 12 becomes smaller, the amount of the substrate to be atomized absorbed by the heating element 12 is further reduced, and therefore the cooling effect of these substrates to be atomized on the heating element 12 is further weakened, so that the heat generated by the heating element 12 is more concentrated, and the overall temperature of the effective atomization area A is higher; therefore, it is necessary to further increase the porosity of the porous matrix 11 to further increase the conduction of the substrate to be atomized, so as to prevent carbon deposition, dry burning, and core sticking in the effective atomization area A.

[0047] In summary, the greater the porosity of the porous matrix 11, the smaller the porosity of the heating element 12 can be, so that the matrix to be atomized in the effective atomization area A can be fully involved, the atomization taste can be improved, and the greater the porosity of the porous matrix 11, the greater the porosity of the heating element 12, which will cause leakage and / or explosion, and then burn the air inlet after the explosion, or let the user draw large particles of aerosol, affecting the experience. Therefore, in a specific embodiment, the ratio of the porosity of the porous matrix 11 to the porosity of the heating element 12 can be 1: (0.3-0.54); at this time, under the condition of 6.5W, the atomization amount of the atomization core 10 can be increased from 5.5 to 6.5 mg / puff to 6.5 to 7.5 mg / puff, and the overall atomization efficiency of the atomization core 10 is effectively increased by more than 15%, and the aerosol formed by atomization has a better taste, no burnt taste, and a higher degree of reduction.

[0048] Specifically, the porosity of the porous matrix 11 may be 50%-65%; preferably, the porosity of the porous matrix 11 may be 60%-65%; the porosity of the heating element 12 may be 15%-45%; the porosity of the heating element 12 is preferably 15%-35%. Moreover, the average pore size of the porous matrix 11 is 8-15 microns, and the average pore size of the heating element 12 is 1-5 microns.

[0049] Specifically, the porous substrate 11 can be a porous ceramic substrate, and the thermal conductivity of the porous ceramic substrate is less than 0.5m / ck. Specifically, the length of the porous ceramic substrate can be 8.96mm, the width can be 3.98mm, and the thickness can be 2.42mm. Of course, in other embodiments, the length, width, and thickness of the porous ceramic can be set according to actual needs, and the present application does not limit this.

[0050] Specifically, the raw materials for preparing the porous ceramic matrix include a first solid powder and an organic solvent. The first solid powder includes a ceramic aggregate, a pore former, and a sintering aid. The ceramic aggregate includes at least one of a natural mineral raw material and a fine ceramic raw material. The pore former includes but is not limited to at least one of polyvinyl chloride microspheres, polymethyl methacrylate, flour, corn starch, and carbon powder. The sintering aid includes but is not limited to at least one of sodium silicate, zirconium silicate, zinc oxide, glass powder, and lithium carbonate.

[0051] The organic solvent includes paraffin, plastic, surface modifier and plasticizer. Among them, the plastic is used to increase the toughness of the slurry for preparing the porous ceramic matrix, and the plastic includes but is not limited to at least one of polypropylene, polyethylene, polystyrene and polyamide. The surface modifier includes but is not limited to at least one of fatty acid, aluminate coupling agent, silane coupling agent and ethylene-propylene copolymer; the plasticizer is used to increase the plasticity of the slurry to prevent cracking during the process of forming the blank and facilitate forming; specifically, the plasticizer includes but is not limited to at least one of diethyl phthalate, di-n-butyl phthalate and dioctyl phthalate.

[0052] In order to achieve a better atomization effect, the heating element 12 may be a heating film, the film width of the heating film may be 300-450 μm, the thickness of the heating film may be 60-120 μm, and the resistance of the heating film may be 1Ω.

[0053] Specifically, the raw materials for preparing the heating element 12 include a second solid powder and an organic carrier, wherein the second solid powder accounts for 60%-95% by weight of the raw materials for preparing the heating element 12; and the second solid powder specifically includes three parts: conductive metal powder, glass powder and pore former.

[0054] The weight percentage of the organic carrier in the raw materials for preparing the heating element 12 is 5%-40%. Specifically, the organic carrier includes at least four parts: solvent, plasticizer, thickener, and thixotropic agent. Specifically, the weight percentage of the solvent in the organic carrier is 40%-80%, the weight percentage of the plasticizer in the organic carrier is 5%-45%, the weight percentage of the thickener in the organic carrier is 5%-15%, and the weight percentage of the thixotropic agent in the organic carrier is 0.5%-2%.

[0055] The above-mentioned method is to make the average pore size of the porous ceramic substrate 8-15μm, the average porosity 50%-65%, and the thermal conductivity less than 0.5m / ck; the average pore size of the heating film is 1-5μm, the porosity is 15%-40%, the film width of the heating film is 300-450μm, and the thickness of the heating film is 60-120μm, so as to generate a reasonable temperature field on the atomization surface of the porous substrate 11, as shown in the thermal imaging diagram, the substrate to be atomized is conducted to the atomization surface through the pore size of the porous ceramic substrate to participate in atomization to generate aerosol, and at the same time, part of the substrate to be atomized is conducted to the heating film through the pore size of the heating film away from the porous substrate 1 1, at this time, this part of the substrate to be atomized can be used to cool the heating film to avoid local high temperature; and because the temperature on the heating film is the highest after the atomizer core 10 is energized, the substrate to be atomized that is conducted to the other end of the heating film can be heated and atomized by the high temperature of the heating film itself, so that the base fragrance and sweeteners, cooling agents, etc. in the substrate to be atomized at this location can be released to supplement the lack of fragrance in the aerosol formed by atomization or the problem of no layering and chaos of the fragrance, thereby making the aerosol taste and fragrance better; at the same time, the reliability of product use is guaranteed and the user's smoking experience is improved.

[0056] In specific embodiments, see Figure 5 and Figure 6 , Figure 5 A schematic diagram of the structure of a heating element 12 provided in an embodiment of the present application; Figure 6 This is a schematic diagram of the structure of the atomizer core 10 provided in another embodiment of the present application; the heating element 12 includes two electrodes 121 and a heating portion 122 connected between the two electrodes 121. The two electrodes 121 are respectively used to electrically connect to the positive / negative poles of the power supply assembly 300. The heating portion 122 is used to generate heat after the electrodes 121 are connected to the power supply assembly 300 and powered on. In a specific embodiment, the heating portion 122 is distributed in a curved shape, for example, the heating portion 122 of the heating element 12 can be S-shaped (see Figure 5 ), N type (see Figure 6 ) or serrated, etc., and defines at least two relatively arranged heating sections; wherein the two heating sections are arranged in parallel and at intervals or in a V shape.

[0057] Specifically, the heating portion 122 includes a first heating section 122a, a second heating section 122b and a third heating section 122c which are arranged in sequence, and a first connecting section 122d and a second connecting section 122e which connect the first heating section 122a, the second heating section 122b and the third heating section 122c in series. The first heating section 122a, the second heating section 122b and the third heating section 122c are parallel to each other and arranged neatly for easy processing. The first connecting section 122d connects the first heating section 122a and the second heating section 122b, and the second connecting section 122e connects the second heating section 122b and the third heating section 122c; the first connecting section 122d and / or the second connecting section 122e are arc sections, and the first connecting section 122d and / or the second connecting section 122e protrude in a direction away from the second heating section 122b and the third heating section 122c. In a specific embodiment, one of the two electrodes 121 can be directly connected to the first heating segment 122a, and the other electrode 121 can be directly connected to the third heating segment 122c; of course, the two electrodes 121 can also be connected to the first heating segment 122a through the third connecting segment 122f and / or connected to the third heating segment 122c through the fourth connecting segment 122g; this makes the setting position of the electrode 121 more flexible and is not limited to the end of the first heating segment 122a or the second heating segment 122b.

[0058] Specifically, the first connecting section 122d is an arc section, which is a semicircular arc. When heating, the heat is evenly diffused, the thermal stress is small, and it is not easy to separate from the porous matrix 11 (i.e., it is not easy to demold), so that the reliability of the atomizer core 10 is higher; the second connecting section 122e is an arc section, and the heat can also be evenly diffused when heating. The heat generated at the arc is relatively concentrated. Therefore, the atomization rate here is high, so that the explosive power of the heating section is strong, that is, a large amount of aerosol can be atomized and generated instantly, which can bring a better taste to the user. Therefore, in the connecting section connected by the semicircular arc, the heating element 12 is not only not easy to demold, but also has a high atomization rate, and at the same time has high reliability and strong explosive power. The third connecting section 122f and / or the fourth connecting section 122g are straight sections, one end of the third connecting section 122f is connected to the end of the first heating section 122a away from the first connecting section 122d through the arc transition section, and the other end is connected to the electrode 121 through the arc transition section, taking into account reliability and explosive power. One end of the fourth connection section 122g is connected to one end of the third heating section 122c away from the second connection section 122e through an arc-shaped transition section, and the other end is connected to the electrode 121 through an arc-shaped transition section, taking both reliability and explosive power into consideration.

[0059] In a specific embodiment, the shortest distance from the heating element 12 to the edge of the porous substrate 11 is ≥ 0.5 mm; to ensure that the edge temperature of the atomizer core 10 can be controlled within 100°C during the atomization process, and to prevent the peripheral structural parts from melting and deforming due to heat. For example, when the cross-section of the porous substrate 11 is rectangular, the shortest distance a from the heating portion 122 along the width direction of the porous substrate 11 to the long side edge of the porous substrate 11, that is, the shortest distance a from the first connecting section 122d and / or the second connecting section 122e along the width direction of the porous substrate 11 to the long side edge of the porous substrate 11 is ≥ 0.5 mm.

[0060] Specifically, it has been verified through experiments that when the shortest distance b between two adjacent heating sections (such as the first heating section 122a and the second heating section 122b or the second heating section 122b and the third heating section 122c) is less than 0.5 mm, due to the narrow distance between the heating sections, it is easy to cause the porous matrix 11 around the heating element 12 to absorb less heat, resulting in local high temperature, causing the substance to decompose and produce formaldehyde exceeding the standard; and when b>0.8 mm, due to the wide distance b between the two adjacent heating sections, during atomization, the porous matrix 11 absorbs too much heat, the heat is dispersed, and there are too many low-temperature areas in the entire atomization area, which affects the release of flavors, spices, etc. in the atomized matrix. Therefore, in a specific embodiment, the shortest distance b between each two adjacent heating sections is 0.5-0.8 mm to ensure that the temperature of the main atomization area is as evenly distributed as possible to avoid local high temperature.

[0061] Further, see Figure 7 , Figure 7 is a relationship diagram between the distance between two adjacent heating sections of the heating element and the temperature; since the normal time of inhaling aerosol is about 4 seconds, and as the inhalation time is longer, the temperature of the heating element 12 in the latter period is higher, and the aerosol taste is worse, the present application selects the inhalation time to detect the temperature of the heating element 12 within the 3rd second, and the detection result is as follows Figure 7 As shown. Figure 7It can be seen that when the distance d between adjacent heating segments is 0.78 mm, the temperature in the 3rd second is evenly distributed between 150°C and 250°C. At this time, the top fragrance, body fragrance and base fragrance in the matrix to be atomized are all well released, and the aerosol taste is better. When the distance d between adjacent heating segments is 0.63 mm, the temperature in the 3rd second is evenly distributed between 200°C and 350°C. At this time, the top fragrance in the matrix to be atomized is released and cracking has occurred, while the body fragrance and base fragrance are just released. The aerosol taste is inferior to the aerosol taste corresponding to the distance d between adjacent heating segments being 0.78 mm. When the distance d between adjacent heating sections is 0.55mm, the temperature distribution in the 3s time is between 200℃-350℃, and the temperature above 300℃ appears many times. At this time, the top fragrance in the matrix to be atomized is released and cracking has occurred, and some body fragrance and bottom fragrance are released and some have also cracked. Therefore, the formaldehyde content will grow rapidly at this time, and the aerosol taste is the worst when the distance d between adjacent heating sections is 0.78mm and 0.63mm. It can be seen that the distance between adjacent heating sections of the heating element 12 leads to heat accumulation, that is, local high temperature, so that the aerosol reduction degree is low and the formaldehyde content is high. Therefore, in a specific embodiment, it is preferred that the distance d between adjacent heating sections is 0.78mm to ensure that the top fragrance, body fragrance and bottom fragrance in the matrix to be atomized can be well released, so that the aerosol taste is better. Of course, the distance d between adjacent heating sections can also be selected to be 0.63mm.

[0062] The atomizer core 10 provided in the embodiment of the present application is configured such that the start-up time of the atomizer core 10 is between 0 and 0.2 seconds, and when the power is 5 to 8W, the temperature area of ​​the porous matrix 11 at 150°C to 200°C accounts for ≥10%, and the temperature area at 200°C to 300°C accounts for ≥10%; after the start-up time is 1 second, the temperature area at 150°C to 200°C accounts for ≥15%, the temperature area at 200°C to 300°C accounts for ≥15%, and the temperature area greater than 300°C accounts for ≤10%; the temperature field distribution is used to promote the release of flavors and fragrances in the matrix to be atomized, thereby improving the release of the flavors and fragrances in the matrix to be atomized. The aroma coordination of the aerosol formed by the atomization of the atomized matrix can avoid the problems of the aerosol aroma being missing or the aroma having no sense of hierarchy or chaos; at the same time, compared with the solution of simply continuously increasing the output power, since the process does not need to adjust the output power of the power supply assembly 300 electrically connected to the atomization core 10, it will not affect the endurance of the power supply assembly 300, will not increase the energy consumption and cost of the atomization core 10, will not affect the life of the atomization core 10 and the safety of the aerosol formed by atomization, and can effectively prevent the atomized matrix from being burnt, or producing odor, fried oil and the like. At the same time, by setting the heating element 12 into a porous structure, the heating element 12 can be infiltrated by the atomized matrix, so that the matching of the heating element 12 with the atomized matrix of different viscosity ranges and the atomization efficiency are higher, and the aroma is released more fully; and it is not easy to dry burn, and it is not easy to burn the core; at the same time, the aldehyde and ketone content of the aerosol formed by atomization is low. In addition, by making the ratio of the porosity of the porous matrix 11 to the porosity of the heating element 12 1:(0.3-0.54), the atomization of the substrate to be atomized is more complete, reducing the condensation of the substrate to be atomized during the transmission process, thereby achieving a fuller aerosol formed by atomization.

[0063] See also Figure 8 , Figure 8 This is a flow chart of an atomization method for a substrate to be atomized provided in an embodiment of the present application; in this embodiment, an atomization method for a substrate to be atomized is provided, and the atomization method is performed by the atomization core 10 provided in any of the above embodiments. Specifically, the method includes:

[0064] Step S1: guiding the substrate to be atomized to the atomization surface of the porous matrix through the porous matrix of the atomization core.

[0065] Specifically, the substrate to be atomized in the liquid storage chamber 202 can enter the atomization chamber 203 through the liquid inlet hole 204 , and the capillary force of the porous matrix 11 of the atomization core 10 can further guide the substrate to be atomized in the atomization chamber 203 to the atomization surface of the porous matrix 11 .

[0066] Step S2: Start the atomizing core and heat the substrate to be atomized through the heating element on the atomizing surface; wherein, when the starting time is between 0-0.2s, the temperature area of ​​150℃-200℃ accounts for ≥10%, and the temperature area of ​​200℃-300℃ accounts for ≥10%; after the starting time is 1s, the temperature area of ​​150℃-200℃ accounts for ≥15%, the temperature area of ​​200℃-300℃ accounts for ≥15%, and the temperature area greater than 300℃ accounts for ≤10%.

[0067] Specifically, the control power supply assembly 300 is turned on to start the atomizing core 10, and the substrate to be atomized is heated by the heating element 11. In a specific embodiment, the fragrance added to the substrate to be atomized can be mainly summarized into three categories: top fragrance, body fragrance, and base fragrance. Furthermore, sweeteners and / or cooling agents can also be added to the substrate to be atomized; wherein the specific components of the top fragrance, body fragrance, base fragrance, sweetener, and cooling agent and their corresponding boiling point ranges are shown in Table 1.

[0068] Table 1 Main flavor components and boiling points added to the atomized matrix

[0069]

[0070] It can be seen from Table 1 that the temperature of the atomizer core 10 directly affects the release of various flavors, that is, the proportion of the temperature area in different temperature ranges of the atomizer core 10 directly affects the release amount of various flavors, thereby affecting the taste of the aerosol. For example, when the temperature area of ​​the atomizer core 10 below 150°C accounts for too large a proportion, the temperature area proportion of 150°C-220°C, the temperature area proportion of 200°C-300°C, and the temperature proportion of more than 300°C of the atomizer core 10 will gradually decrease accordingly. At this time, the release of body fragrance and base fragrance in the aerosol to be atomized by the atomized matrix will be reduced, and even the large particle molecules produced by sweeteners and cooling agents cannot be atomized. Therefore, the user feels that the aroma restoration degree in the aerosol is low and the taste is poor. At the same time, because the temperature area below 150°C accounts for too large a proportion, the atomized matrix The top fragrance in the matrix will be released and consumed in large quantities in the aerosol at the front of the puff. Therefore, as the puffing time increases, the amount of top fragrance released in the aerosol at the back of the puff decreases, while high-boiling-point fragrances, such as body fragrance and base fragrance, cannot be effectively atomized, resulting in the aroma becoming weaker and weaker during the puffing process, and the taste is seriously attenuated; therefore, in the specific atomization process, the temperature area of ​​the atomization core 10 in the range of 150°C-300°C should be as high as possible, so that the top fragrance, body fragrance, and base fragrance can be atomized synergistically, and the taste consistency is good throughout the puffing process. At the same time, it is necessary to ensure that the temperature area above 300°C during the atomization process is kept at a relatively low level. On the one hand, when it is above 300°C, it is conducive to the release of sweeteners and cooling agents. On the other hand, when the temperature exceeds 350°C, low-boiling-point fragrances will decompose and produce toxic substances such as formaldehyde, affecting safety.

[0071] Therefore, in the specific implementation process, when the startup time of the atomizer core 10 is between 0-0.2s, the temperature area of ​​the atomizer core 10 at 150℃-200℃ accounts for ≥10%, and the temperature area of ​​200℃-300℃ accounts for ≥10%; after the startup time is 1s, the temperature area of ​​the atomizer core 10 at 150℃-200℃ accounts for ≥15%, the temperature area of ​​200℃-300℃ accounts for ≥15%, and the temperature area greater than 300℃ accounts for ≤10%; so as to promote the release of flavors and fragrances in the atomized matrix through the temperature field distribution, and improve the atomization formation of the atomized matrix The aroma coordination of the aerosol can avoid the problems of missing aerosol aroma or aroma without layering, chaos, and aroma. At the same time, compared with the solution of increasing the output power, since this process does not need to adjust the output power of the power supply component 300 electrically connected to the atomizer core 10, it will not affect the endurance of the power supply component 300, will not increase the energy consumption and cost of the atomizer core 10, and will not affect the life of the atomizer core 10 and the safety of the aerosol formed by atomization, and can effectively prevent the increase in output power from causing the atomized matrix to be burned, or the generation of odor, oil frying, and the like.

[0072] The above temperature field can be measured by an infrared thermal imaging instrument, and then the corresponding temperature ratio can be obtained by statistics of each pixel point measured by thermal imaging, and finally converted by MATLAB. Among them, those skilled in the art are familiar with MATLAB, which is a commercial mathematical software produced by MathWorks, USA, and is used in data analysis, wireless communication, deep learning, image processing in computer vision, signal processing, quantitative finance and risk management, robotics, control systems and other fields.

[0073] In a specific embodiment, when the start-up time of the atomizer core 10 is between 0-0.2s, the temperature area of ​​the atomizer core 10 less than 150°C accounts for ≤60%; the temperature area of ​​150°C-200°C accounts for 20%-30%, the temperature area of ​​200°C-300°C accounts for 20%-30%; the temperature area greater than 300°C accounts for 0%. After the start-up time of the atomizer core 10 is 1s, the temperature area of ​​the atomizer core 10 less than 150°C accounts for ≤55%; the temperature area of ​​150°C-200°C accounts for 18%-25%, the temperature area of ​​200°C-300°C accounts for 25%-40%, and the temperature area greater than 300°C accounts for ≤5%.

[0074] Among them, see Fig. 9 , Fig. 9 This is the thermal imaging layout at 0.2s after startup. According to experimental monitoring, at 0.2s after startup, the temperature of the heating element 12 is about 228°C, and as shown in the white area and the heating element 12 line in the above figure, the heat of the heating element 12 is absorbed by the porous ceramic matrix around the heating element 12, and the temperature of the porous ceramic matrix adjacent to the heating element 12 is gradually increased, and gradually decreases away from the heating element 12. At this time, the temperature of the porous ceramic matrix adjacent to the heating element 12 is about 180°C. Therefore, at 0.2s, the temperature area on the porous matrix 11 less than 150°C can specifically be less than 60%.

[0075] See also Fig.10 , Fig.10This is a thermal imaging image when it is started for 1 second; when the atomizer core 10 is started for 1 second, the infrared thermal imaging instrument detects that the temperature of the heating element 12 is about 265°C at this time, and the temperature of the porous ceramic matrix near the heating element 12 is about 221°C, and the temperature at a position far away from the heating element 12 is also about 115°C. Therefore, at this time, the temperature area occupied by the porous ceramic matrix at 150°C-300°C is the largest, and many flavors and fragrances in the matrix to be atomized can be released between 150°C-300°C, so that the aerosol formed by atomization has a good fragrance reduction and a full aerosol. Therefore, considering that the normal smoking time of the user is 3s, when the atomizer core 10 is started within 1s, the temperature area occupied by the porous matrix 11 at 150°C-300°C can be specifically 45%, at this time, the flavors and fragrances in the matrix to be atomized can be better released; and after inhaling for 3s, the matrix to be atomized can be atomized more fully, and the aerosol formed by atomization is fuller.

[0076] The atomization method of the substrate to be atomized provided in this embodiment guides the substrate to be atomized to the atomization surface of the porous substrate 11 through the porous substrate 11 of the atomization core 10; then the atomization core 10 is started, and the substrate to be atomized is heated by the heating element 12 on the atomization surface to atomize it to form an aerosol; wherein, when the start-up time of the atomization core 10 is between 0 and 0.2 seconds, the temperature area of ​​the porous substrate 11 at 150°C-200°C accounts for ≥10%, and the temperature area of ​​200°C-300°C accounts for ≥10%; and after the start-up time is 1 second, the porous substrate 11 at 150°C-2 The temperature area of ​​100℃ accounts for ≥15%, the temperature area of ​​200℃-300℃ accounts for ≥15%, and the temperature area above 300℃ accounts for ≤10%; the temperature field distribution is used to promote the release of flavors and fragrances in the matrix to be atomized, improve the aroma coordination of the aerosol formed by the atomization of the matrix to be atomized, and avoid the problems of aerosol aroma loss or aroma without layering, chaos, and aroma; at the same time, compared with the solution of increasing the output power, it will not increase the energy consumption and cost of the atomizer core 10, nor will it affect the life of the atomizer core 10 and the safety of the aerosol formed by atomization.

[0077] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for atomizing a substrate to be atomized, characterized in that: The method includes: Guide the substrate to be atomized to the atomization surface of the porous matrix through the porous matrix of the atomization core; Starting the atomizing core to heat the substrate to be atomized through the heating element on the atomizing surface; Among them, when the start-up time is between 0-0.2s, the temperature area of ​​150℃-200℃ accounts for ≥10%, and the temperature area of ​​200℃-300℃ accounts for ≥10%; After 1s of startup time, the temperature area of ​​150℃-200℃ accounts for ≥15%, the temperature area of ​​200℃-300℃ accounts for ≥15%, and the temperature area greater than 300℃ accounts for ≤10%; Among them, the temperature area ratio refers to the ratio of the atomization area of ​​the corresponding temperature to the effective atomization area, and the effective atomization area refers to the product of the length of the heating element along the first direction and the width of the porous matrix along the second direction, and the first direction is perpendicular to the second direction.

2. The method for atomizing a substrate to be atomized according to claim 1, characterized in that: When the startup time is between 0-0.2s, the temperature area of ​​150℃-200℃ accounts for 20%-30%, the temperature area of ​​200℃-300℃ accounts for 20%-30%; the temperature area greater than 300℃ accounts for 0%.

3. The method for atomizing a substrate to be atomized according to claim 2, characterized in that: When the startup time is between 0-0.2s, the temperature area below 150°C accounts for ≤60%.

4. The method for atomizing a substrate to be atomized according to any one of claims 1 to 3, characterized in that: After the startup time is 1s, the temperature area less than 150℃ accounts for ≤55%; the temperature area of ​​150℃-200℃ accounts for 18%-25%, the temperature area of ​​200℃-300℃ accounts for 25%-40%, and the temperature area greater than 300℃ accounts for ≤5%.

5. The method for atomizing a substrate to be atomized according to claim 4, characterized in that: After the startup time is 1s, the temperature area of ​​150℃-300℃ accounts for ≥45%.

6. An atomizer core, characterized in that: The atomization method for performing the atomization substrate to be atomized according to any one of claims 1 to 5, wherein the atomization core comprises: A porous substrate having an atomized surface; A heating element is arranged on the atomization surface of the porous substrate, and is used to heat the substrate to be atomized on the porous substrate after the atomization core is started; wherein, when the start-up time of the atomization core is between 0 and 0.2s, and the power is 5 to 8W, the temperature area ratio of 150°C to 200°C is ≥10%, and the temperature area ratio of 200°C to 300°C is ≥10%; after the start-up time is 1s, the temperature area ratio of 150°C to 200°C is ≥15%, the temperature area ratio of 200°C to 300°C is ≥15%, and the temperature area ratio greater than 300°C is ≤10%; wherein, the temperature area ratio refers to the ratio of the atomization area of ​​the corresponding temperature to the effective atomization area, and the effective atomization area refers to the product of the length of the heating element along the first direction and the width of the porous substrate along the second direction, and the first direction is perpendicular to the second direction.

7. The atomizer core according to claim 6, characterized in that: The porosity of the porous matrix is ​​60%-65%, and the thermal conductivity of the porous matrix is ​​less than 0.5 m / ck.

8. The atomizer core according to claim 6 or 7, characterized in that: The heating element is a porous structure, and the average pore size of the heating element is 1-5 micrometers, and the porosity of the heating element is 15-40%.

9. The atomizer core according to claim 6, characterized in that: The shortest distance from the heating element to the edge of the porous substrate in the effective atomization area is ≥0.5 mm.

10. The atomizer core according to claim 6 or 9, characterized in that: The heating elements in the effective atomization area are distributed in a curved shape and define at least two opposite heating sections; and the shortest distance between each two adjacent heating sections is 0.5-0.8 mm.

11. The atomizer core according to claim 10, characterized in that: The shortest distance between any two adjacent heating sections is 0.78 mm.

12. An atomizer, characterized in that: include: The atomizer core is the atomizer core as described in any one of claims 6 to 11.

13. An electronic atomization device, characterized in that: include: An atomizer, which is the atomizer as claimed in claim 12; A power supply assembly is connected to the atomizer and is used to supply power to the atomizer so that the atomizer atomizes the substrate to be atomized according to the atomization method according to any one of claims 1 to 5.

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