Atomizer and electronic atomization device

Abstract

Disclosed in the present application are an electronic atomization device, an atomizer and an atomizing core thereof. The atomizing core comprises: a liquid guide body, with a porosity of 75%-98% and a vent hole formed therein, wherein the aperture of the vent hole ranges from 1.5 mm to 6.5 mm; and a heating element, which is disposed on an inner wall surface of the vent hole and configured to atomize an aerosol substrate conducted by means of the liquid guide body, and generate an aerosol in the vent hole. In this way, the atomizing core provided in the present application can greatly enhance the taste recreation of the aerosol, thereby enabling the original flavor of the aerosol substrate to be more fully expressed.

Description

An atomizer and an electronic atomization device

[0001] This application claims priority to the Chinese patent application No. 202410477925.9, entitled "An electronic atomization device, an atomizer and an atomization core thereof", filed on April 19, 2024, which is incorporated by reference in its entirety into the Chinese patent application of the present application, which is incorporated by reference in its entirety into the present application;

[0002] This application claims priority to the Chinese patent application No. 202420826464.7, entitled "An electronic atomization device, an atomizer and an atomization core thereof", filed on April 19, 2024, which is incorporated by reference in its entirety into the Chinese patent application of the present application, which is incorporated by reference in its entirety into the present application.

TECHNICAL FIELD

[0003] The present application relates to the technical field of atomization equipment, in particular to an electronic atomization device, an atomizer and an atomization core thereof.

BACKGROUND

[0004] The atomization core is used for atomizing aerosol substrate to generate aerosol for a user to smoke. The atomization core includes ceramic and a heating wire. The heating wire is made into a spring-like structure, and then the heating wire is embedded into the ceramic to heat the ceramic, so as to atomize the aerosol substrate to generate the aerosol. Since the porosity of the ceramic has the interception or adsorption effect on the flavor substances of the aerosol substrate, after the aerosol substrate is atomized into the aerosol, the taste of the aerosol is greatly different, and in particular, the taste of the aerosol is not fully expressed. Therefore, there is a great difference between the taste of the aerosol and the original taste of the aerosol substrate.

[0005] The atomization core composed of the liquid guiding cotton and the heating wire also has this problem. How to make the atomization core fully express the original taste of the aerosol substrate constitutes a technical difficulty.

SUMMARY

[0006] The present application mainly provides an electronic atomization device, an atomizer and an atomization core thereof to solve the problem that the atomization core does not fully express the original taste of the aerosol substrate.

[0007] To solve the above technical problem, one technical scheme adopted by the present application is to provide an atomization core. The atomization core includes: a liquid guiding body, the porosity of the liquid guiding body is 75%-98%, and a ventilation hole is formed in the liquid guiding body, the pore size of the ventilation hole is 1.5mm to 6.5mm; a heating element is arranged on the inner wall surface of the ventilation hole, which is used for atomizing the aerosol substrate conducted by the liquid guiding body and generating the aerosol in the ventilation hole.

[0008] In some embodiments, the pore size of the ventilation hole is 2.2mm to 2.7mm.

[0009] In some embodiments, the ratio of the length of the heating element along the circumference of the air passage to the circumference of the air passage is 1 / 2 to 5 / 6.

[0010] In some embodiments, the heating element is a heating mesh, and the material of the heating mesh is one of nickel alloy, iron-chromium alloy, and stainless steel.

[0011] In some embodiments, the atomizing core further comprises a wire clamp, the wire clamp is arranged at one end of the liquid guide body, the center hole of the wire clamp is coaxially arranged with the air passage, and the wire clamp is used for fixing the lead wire of the heating element.

[0012] In some embodiments, the atomizing core further comprises a fixing tube, the liquid guide body comprises a plurality of layers of liquid guide layers, the plurality of layers of liquid guide layers are arranged on the fixing tube, the air passage is coaxial with the fixing tube, and the plurality of layers of liquid guide layers have at least two liquid guide layers with different textures, wherein the liquid guide layer in contact with the heating element has vertical texture, and the extension direction of the vertical texture is parallel to the axial direction of the fixing tube.

[0013] In some embodiments, the liquid guide layer in contact with the fixing tube has grid texture or cross texture, and the extension direction of the vertical texture is perpendicular to the extension direction of the cross texture.

[0014] In some embodiments, the plurality of layers of liquid guide layers have at least vertical texture, grid texture, and cross texture, the liquid guide layer in contact with the fixing tube has cross texture, the liquid guide layer with the grid texture is located between the liquid guide layer with the vertical texture and the liquid guide layer with the cross texture.

[0015] In some embodiments, the bulk density of the liquid guide layer with the vertical texture is 40-75 g / m 2 , the bulk density of the liquid guide layer with the grid texture is 50-75 g / m 2 , and the bulk density of the liquid guide layer with the cross texture is 40-85 g / m 2 .

[0016] In some embodiments, the material of the liquid guide layer with the vertical texture is natural fiber, the material of the liquid guide layer with the grid texture is silk cotton, wood pulp cotton, or organic cotton, and the material of the liquid guide layer with the cross texture is non-woven fabric, silk, wood pulp cotton, polylactic acid, or polyethylene terephthalate.

[0017] In some embodiments, the liquid guide layer comprises a surrounding part and a leading part at both ends of the surrounding part in an integrated structure, the surrounding part is attached to the outer circumference of the heating element, and the leading part extends outwardly from the fixing tube in a bent connection with the surrounding part.

[0018] In some embodiments, the shaping hole formed by the heating element is a substantially circular hole, the heating element is located between two ends of the liquid guiding layer along the axial direction, and the distance between the heating element and the liquid guiding layer end to end along the axial direction is 2-50mm.

[0019] In some embodiments, the side wall of the fixed tube is provided with a liquid inlet groove and a clamping groove, the length of the clamping groove along the axial direction is greater than the length of the liquid inlet groove, the clamping groove is formed with an opening at the end of the fixed tube, the end of the multi-layer liquid guiding layer is clamped in the clamping groove from the opening, and the multi-layer liquid guiding layer covers the liquid inlet groove.

[0020] To solve the above technical problems, another technical scheme adopted by the present application is to provide an atomizer. The atomizer comprises an atomizing core as described above.

[0021] To solve the above technical problems, another technical scheme adopted by the present application is to provide an electronic atomization device. The electronic atomization device comprises a main machine and an atomizer as described above, and the main machine is connected with the atomizer and supplies power to the atomizer.

[0022] The present application has the beneficial effects that: different from the prior art, the present application discloses an electronic atomization device, an atomizer and an atomizing core thereof. By optimizing the porosity of the liquid guiding body to be 75%-98%, the passing property of the liquid guiding body to the aerosol substrate and the flavor substances in the aerosol substrate is better, which is beneficial to improving the taste reduction degree of the generated aerosol after atomization; and the pore diameter of the air passage is 1.5mm to 6.5mm, which can make the aroma of the front and rear sections of the aerosol balanced, the particle feeling smooth and sweet, and the aroma consistent with the aerosol substrate, which helps to reduce the carbon deposition on the heating element, and the generated aerosol is evenly heated, which can greatly improve the taste reduction degree of the aerosol by combining the porosity of the liquid guiding body, so that the original taste of the aerosol substrate can be fully expressed. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0024] Fig. 1 is a structural schematic view of an embodiment of an atomizing core provided by the present application;

[0025] Fig. 2 is a cross-sectional structural schematic view of the atomizing core shown in Fig. 1;

[0026] FIG3 is a schematic structural diagram of an embodiment of an atomizer provided by the present application;

[0027] FIG4 is a schematic structural diagram of an embodiment of an electronic atomization device provided in the present application. [Specific implementation method]

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] The terms "first", "second" and "third" in the embodiments of the present application are only used for descriptive purposes and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second" and "third" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any variations thereof 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 listed steps or units, but may optionally also include steps or units that are not listed, or may optionally also include other steps or units inherent to these processes, methods, products or devices.

[0030] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] The present application provides an atomizer core 100 . Referring to FIG. 1 and FIG. 2 , FIG. 1 is a schematic structural diagram of an embodiment of the atomizer core provided by the present application, and FIG. 2 is a schematic cross-sectional structural diagram of the atomizer core shown in FIG. 1 .

[0032] The atomizer core includes a heating element 20 and a liquid-conducting liquid 30 , wherein the porosity of the liquid-conducting liquid 30 is 75%-98% and a vent 301 is formed therein, and the pore diameter of the vent 301 is 1.5 mm to 6.5 mm; the heating element 20 is arranged on the inner wall surface of the vent 301 , and is used to atomize the aerosol matrix conducted by the liquid-conducting liquid 30 and generate an aerosol in the vent 301 .

[0033] The liquid guide 30 can be a porous substrate, for example, the porous substrate can be a porous ceramic or a porous glass, etc., and the air passage 301 penetrates through the porous substrate.

[0034] In this embodiment, the liquid guide 30 includes a plurality of liquid guide layers 31 stacked in layers, and the atomizing core 100 further includes a fixing tube 10, the plurality of liquid guide layers 31 are arranged in the fixing tube 10, and the air passage 301 is coaxial with the fixing tube 10.

[0035] The fixing tube 10 is tubular and used to support the heating element 20 and the plurality of liquid guide layers 31; the heating element 20 and the plurality of liquid guide layers 31 are both elastic, and the elasticity of the heating element 20 can cause the plurality of liquid guide layers 31 to be fixed in the fixing tube 10.

[0036] In this application, the side wall of the fixing tube 10 is provided with a liquid inlet groove 12, and the plurality of liquid guide layers 31 cover the liquid inlet groove 12, so that the aerosol substrate can enter the plurality of liquid guide layers 31 through the liquid inlet groove 12, that is, the liquid inlet groove 12 is used for liquid inlet.

[0037] In some embodiments, the liquid guide layer 31 is cylindrical, so that it can be completely accommodated in the fixing tube 10.

[0038] In this embodiment, the side wall of the fixing tube 10 is further provided with a clamping groove 14, and the end of the plurality of liquid guide layers 31 is clamped in the clamping groove 14, so that the end of the liquid guide layer 31 also protrudes out of the fixing tube 10, which can further increase the liquid inlet area of the liquid guide layer 31 and make the liquid supply to the plurality of liquid guide layers 31 more sufficient.

[0039] Specifically, the liquid guide layer 31 includes a surrounding part 311 of an integral structure and guide parts 312 located at both ends of the surrounding part 311, wherein the surrounding part 311 is attached to the outer periphery of the heating element 20, the guide parts 312 are connected to the surrounding part 311 in opposite directions and extend outward, and the guide parts 312 located at both ends of the surrounding part 311 are stacked and clamped in the clamping groove 14, so that the guide parts 312 can serve as a new liquid supply path, and the guide parts 312 also serve as connecting pieces connected to the clamping groove 14, thereby further fastening the positions of the plurality of liquid guide layers 31 and the heating element 20.

[0040] Further, the guide parts 312 can also extend out of the fixing tube 10, further increasing the liquid supply area, which can directly contact the liquid storage cotton in the liquid storage compartment to improve the liquid supply efficiency.

[0041] In this embodiment, the length of the clamping groove 14 in the axial direction is greater than the length of the liquid inlet groove 12, and the clamping groove 14 is formed with an opening 140 at the end of the fixing tube 10, and the end of the plurality of liquid guide layers 31 enters the clamping groove 14 from the opening 140 and is clamped in the clamping groove 14, that is, the guide parts 312 enter the clamping groove 14 from the opening 140 and are clamped in the clamping groove 14.

[0042] By setting the length of the clamping groove 14 in the axial direction to be greater than the length of the liquid inlet groove 12, and the surrounding part 311 covering the liquid inlet groove 12, it can be ensured that the liquid guide layer 31 covers the liquid inlet groove 12, avoiding leakage of the aerosol substrate.

[0043] The porosity of the liquid guide 30 is 75%-98%, preferably, the porosity of the liquid guide 30 can be 80%-95%, for example, the porosity of the liquid guide 30 can be 75%, 78%, 80%, 85%, 88%, 90%, 93%, 95%, 97% or 98%.

[0044] By optimizing the porosity of the liquid guide 30, on the one hand, the liquid supply efficiency of the liquid guide 30 to the heating element 20 can be improved, and on the other hand, the flavor substances in the aerosol substrate are more easily guided to the pores of the liquid guide 30, thus reducing the probability of generating a burnt taste during atomization, and also improving the taste reduction degree of the generated aerosol after atomization, so that the taste of the generated aerosol is closer to the designed taste, and the expression of the original taste of the aerosol substrate is more sufficient.

[0045] The diameter of the vent hole 301 is 1.5mm to 6.5mm, preferably, the diameter of the vent hole 301 is 2.2mm to 2.7mm, for example, the diameter of the vent hole 301 can be 1.5mm, 1.6mm, 1.8mm, 2.0mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 3.0mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4.0mm, 4.2mm, 4.3mm, 4.5mm, 4.8mm, 5.0mm, 5.2mm, 5.5mm, 5.8mm, 6.0mm, 6.3mm or 6.5mm.

[0046] The size of the vent hole 301 has a great influence on the aerosol generated by the atomizing core 100, where the airflow flow rate through the vent hole 301 is fastest at the center of the vent hole 301, and slowest near the wall surface of the vent hole 301. When the atomizing core 100 is working, the aerosol is generated at the wall surface of the vent hole 301; therefore, when the diameter of the vent hole 301 is smaller, the airflow is more likely to carry the liquid film on the wall surface into the user's oral cavity; when the diameter of the vent hole 301 is larger, more aerosol is retained on the wall surface, which condenses or agglomerates on the surface of the wall surface, affecting the taste of the aerosol.

[0047] It is found through research that when the hole diameter of the ventilation hole 301 is less than 1.5 mm, the airflow velocity V1 at the center position of the ventilation hole 301 is approximately equal to the airflow velocity V2 close to the wall surface, so when there is more liquid film on the wall surface of the ventilation hole 301, the liquid film that is not atomized in time will be brought into the user's mouth by the airflow, thereby causing the phenomenon of accidentally inhaling the aerosol substrate, and the generated aerosol has strong particulate feeling and incomplete aerosol taste.

[0048] When the hole diameter of the ventilation hole 301 is 1.5 mm-6.5 mm, the airflow velocity V1 at the center position of the ventilation hole 301 is greater than the airflow velocity V2 close to the wall surface, V1>(1-10)V2, so at this time the atomization speed of the aerosol substrate matches the airflow velocity V2, thereby not only can the fullness of the aerosol be sufficient, but also the aroma of the aerosol can be sufficient, and in addition, the phenomenon of inhaling the aerosol substrate can be avoided, thereby greatly improving the mouthfeel of the aerosol.

[0049] Preferably, the hole diameter of the ventilation hole 301 is 2.2 mm-2.7 mm, and the generated aerosol has the best effect, the fullness of the aerosol is sufficient, and the aroma and sweetness are sufficient.

[0050] When the hole diameter of the ventilation hole is greater than 6.5 mm, the atomization speed of the aerosol substrate is greater than the airflow velocity V2, so the aerosol content to the user's oral cavity is scarce, the aerosol is retained in the ventilation hole 301, thereby causing the aroma of each puff of aerosol to be different, and the mouthfeel restoration degree is relatively poor, and in addition, the aroma substances of the unatomized aerosol substrate are deposited on the heating element 20 or the aerosol substrate that is not taken away by the airflow condenses on the surface of the heating element 20 to form liquid drops, so that more aroma substances condense on the surface of the heating element 20, thereby causing the heating element 20 to easily appear the phenomenon of dry burning.

[0051] By limiting the hole diameter of the ventilation hole 301 to 1.5 mm to 6.5 mm, and preferably the hole diameter of the ventilation hole 301 to 2.2 mm to 2.7 mm, the mouthfeel restoration degree of the aerosol can be effectively improved, the aroma of the front and rear sections of the aerosol is balanced, the particulate feeling is smooth, and the sweetness and aroma are sufficient, which is consistent with the aroma of the aerosol substrate body, and in addition, the phenomenon of paste taste caused by the deposition of carbon on the surface of the heating element 20 can be effectively reduced, the service life of the atomization core 100 can be prolonged, and the probability of the user inhaling the tobacco tar can be reduced; the generated aerosol has uniform heat feeling, and the phenomenon of over-heating and burning the mouth can be avoided.

[0052] Further, as shown in FIG. 2, the atomization core 100 further includes a wire clamp 40, the wire clamp 40 is arranged at one end of the liquid guide body 30, the center hole 401 of the wire clamp 40 is coaxially arranged with the ventilation hole 301, and the wire clamp 40 is used to fix the lead wire of the heating element 20.

[0053] The center hole 401 of the wire clamp 40 is coaxially arranged with the air passage 301, which can ensure that the airflow of the atomizing core 100 enters from the center of the air passage 301, so that the flow speed of the airflow in the air passage 301 is consistent in the same radial direction, so that the aerosol content carried in the airflow is consistent, thereby ensuring the taste of the aerosol.

[0054] The ratio of the length of the heating element 20 along the circumference of the air passage 301 to the circumference of the air passage 301 is 1 / 2 to 5 / 6. Specifically, the ratio of the length of the heating element 20 along the circumference of the air passage 301 to the circumference of the air passage 301 can be 1 / 2, 3 / 4, 4 / 5 or 5 / 6, which can avoid short circuit caused by the two leads of the heating element 20 distributed along the circumference touching each other, and can make the liquid guiding amount of the liquid guiding body 30 and the atomization amount of the heating element 20 more easily balanced, so as to avoid the phenomenon of too much liquid supply and too little liquid supply.

[0055] The heating element 20 is a heating mesh, and the material of the heating mesh is one of nickel alloy, iron-chromium alloy and stainless steel. The nickel alloy, iron-chromium alloy and stainless steel have smaller adsorption degree to the aerosol substrate, which can effectively reduce the liquid amount condensed on the heating mesh, and the generated aerosol is blasted from the mesh opening of the heating mesh, avoiding the condensation of the aerosol substrate in the structure of the heating mesh, which can reduce the risk of burning of the heating element 20.

[0056] The heating mesh can include a first heating mesh 21 and a second heating mesh 22 arranged along the axial direction of the fixed tube 10, and the first heating mesh 21 and the second heating mesh 22 are wound in a cylindrical structure along the circumference. The first heating mesh 21 and the second heating mesh 22 each include a plurality of heating units arranged in an array, which can be rhombic units, rectangular units or triangular units, etc. The heating units and the edge extension on the heating mesh are all used for heating to atomize the aerosol substrate conducted from the multi-layer liquid guiding layer 31.

[0057] The heating element 20 is located between the two ends of the liquid guiding layer 31 along the axial direction, and the distance formed between the heating element 20 and the liquid guiding layer 31 end to end along the axial direction is 2-50mm; preferably, the distance formed between the heating element 20 and the liquid guiding layer 31 end to end along the axial direction is 3-15mm.

[0058] The distance formed between the heating element 20 and the liquid guiding layer 31 end to end along the axial direction can be 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm or 50mm.

[0059] The shaping hole surrounded by the heating element 20 is basically a circular hole, and further, the distance between the heating element 20 and the liquid guide layer 31 is set to 2-50mm, which can be 2mm, 5mm, 12mm, 15mm, 20mm, 30mm, 40mm or 50mm, which can avoid the collapse of the excess part of the liquid guide layer 31 when the aerosol substrate is full, thereby avoiding affecting the aerosol discharge and the taste of the aerosol.

[0060] Further, the multi-layer liquid guide layer 31 has at least two different textures of the liquid guide layer 31, wherein the liquid guide layer 31 in contact with the heating element 20 has a vertical texture, and the extension direction of the vertical texture is parallel to the axial direction of the fixed tube 10.

[0061] The liquid guide layer 31 can be made of fiber, cotton or silk, etc., which can form various textures due to different manufacturing processes. The liquid guide layer 31 with different textures has differences in liquid guiding rate and permeability, etc. The sorting of the liquid guide layer 31 with different textures can improve the atomization performance of the atomization core 100.

[0062] The texture gap between the textures formed by the liquid guide layer 31 is more conducive to guiding and passing the flavor substances in the aerosol substrate relative to the material itself of the liquid guide layer 31. The liquid guide layer 31 in contact with the heating element 20 has a vertical texture, and the extension direction of the vertical texture is parallel to the axial direction of the fixed tube 10. Therefore, the vertical texture can play a guiding role, and the atomization core 100 is usually used in a vertical posture. In use, the axial direction of the fixed tube 10 is basically the same as the vertical direction, and the heating unit on the heating element 20 is tightly attached to the surface of the liquid guide layer 31. The vertical texture of the liquid guide layer 31 helps to accelerate the flow of the aerosol substrate to the heating unit of the heating element 20 in use, reduces the interception and retention of the flavor substances in the aerosol substrate in the liquid guide layer 31, improves the taste reduction degree of the aerosol generated by the atomization core 100, so that the taste of the generated aerosol is closer to the designed taste, and the original taste of the aerosol substrate is more fully expressed.

[0063] Further, the multi-layer liquid guide layer 31 also has other textures different from the vertical texture, so as to adjust the liquid guiding rate of the aerosol substrate in the multi-layer liquid guide layer 31 by setting the other textures, thereby avoiding the risk of liquid leakage of the atomization core 100 due to too fast liquid supply. Therefore, the atomization core 100 provided in the present application considers the indicators such as liquid supply rate, liquid leakage risk and taste reduction degree of aerosol by setting the texture of the multi-layer liquid guide layer 31 and the aperture of the vent hole 301, so that the atomization core 100 provided in the present application has appropriate liquid supply rate, small liquid leakage risk and high taste reduction degree of aerosol.

[0064] Specifically, the liquid guide layer 31 in contact with the fixed tube 10 and the liquid guide layer 31 in contact with the heating element 20 have different textures, which can relatively reduce the liquid inlet rate of the multi-layer liquid guide layer 31, so that the liquid supply rate of the multi-layer liquid guide layer 31 is moderate, and the problem of high risk of liquid leakage caused by too fast liquid supply is avoided.

[0065] The liquid guide layer 31 in contact with the fixed tube 10 can have a grid texture or a cross grain texture, and the extension direction of the vertical grain is perpendicular to the extension direction of the cross grain. Both the grid texture and the cross grain texture can relatively reduce the liquid inlet rate compared with the vertical grain texture, so as to avoid the problem of high risk of liquid leakage caused by too fast liquid supply, and the passing rate of flavor substances is also relatively high, which can make the flavor substances more easily pass through, and help to improve the taste restoration degree of the aerosol.

[0066] For example, the liquid guide layer 31 in contact with the fixed tube 10 has a cross grain texture, and the cross grain texture is relatively perpendicular to the axial direction. The liquid guide layer 31 will relatively more allow the aerosol substrate to supply liquid to the heating element 20 along the texture gap. The liquid guide layer 31 has a relatively blocking effect on the aerosol substrate flowing in the axial direction, so that the liquid inlet rate of the liquid guide layer 31 as a whole will be reduced, and the risk of liquid leakage caused by too fast liquid supply will be avoided.

[0067] The liquid guide layer 31 with a grid texture can also reduce the liquid inlet rate compared with the liquid guide layer 31 with a vertical grain texture, and the flowability of the aerosol substrate in the liquid guide layer 31 with a grid texture and the penetration rate of the flavor substances are stronger, which can avoid the phenomenon that the aerosol taste is poor or the aroma is insufficient due to the adsorption of too many flavor substances in the aerosol substrate.

[0068] In the embodiment, the multi-layer liquid guide layer 31 at least has a vertical grain texture, a grid texture and a cross grain texture. The liquid guide layer 31 in contact with the fixed tube 10 has a cross grain texture. The liquid guide layer 31 with a grid texture is located between the liquid guide layer 31 with a vertical grain texture and the liquid guide layer 31 with a cross grain texture.

[0069] By sequentially arranging the different liquid guide layers 31 with vertical grain texture, grid texture and cross grain texture, the indicators such as liquid supply rate, liquid leakage risk and taste restoration degree of the aerosol can be further considered, so that the atomizing core 100 provided by the present application has appropriate liquid supply rate, small liquid leakage risk and high taste restoration degree of the aerosol.

[0070] Further, the bulk density of the liquid guide layer 31 with a vertical grain texture is 40-75 g / m 2 , preferably 55-70 g / m 2 ; the bulk density of the liquid guide layer 31 with a grid texture is 50-75 g / m 2 , preferably 55-65 g / m 2 ; and the bulk density of the liquid guide layer 31 with a cross grain texture is 40-85 g / m 2, preferably 45-75 g / m 2 .

[0071] The bulk density of the liquid guide layer 31 with vertical texture can be specifically 40 g / m 2 , 45 g / m 2 , 50 g / m 2 , 55 g / m 2 , 60 g / m 2 , 65 g / m 2 , 70 g / m 2 , or 75 g / m 2 ; the bulk density of the liquid guide layer 31 with grid texture can be specifically 50 g / m 2 , 55 g / m 2 , 60 g / m 2 , 65 g / m 2 , 70 g / m 2 , or 75 g / m 2 ; the bulk density of the liquid guide layer 31 with horizontal texture can be specifically 40 g / m 2 , 45 g / m 2 , 50 g / m 2 , 55 g / m 2 , 60 g / m 2 , 65 g / m 2 , 70 g / m 2 , 75 g / m 2 , 80 g / m 2 , or 85 g / m 2 .

[0072] Excessive bulk density will result in insufficient penetration of flavor substances in the aerosol substrate, affecting the taste reduction degree of the generated aerosol, and too small bulk density will result in excessive liquid leakage rate of the atomization core 100, thus the present application limits the bulk density of the liquid guide layer 31 of each texture type, which can further optimize the liquid supply rate, liquid leakage risk and taste reduction degree of the aerosol of the atomization core 100.

[0073] Further, the material of the liquid guide layer 31 with vertical texture is natural fiber, which can be cotton or flax, etc., the material of the liquid guide layer 31 with grid texture is silk cotton, wood pulp cotton or organic cotton, and the material of the liquid guide layer 31 with horizontal texture is non-woven fabric, silk, wood pulp cotton, polylactic acid (PLA) or polyethylene terephthalate (PET), the liquid guide rate of these materials is high and the penetration rate of flavor substances in the aerosol substrate is high, which is beneficial to improve the taste reduction degree of the aerosol, and can also guide the aerosol substrate well, ensuring sufficient liquid supply to the heating element 20.

[0074] The number of layers of the multi-layer liquid guide layer 31 can be 2, 3, 4, 5, 6, 7, 8, or 9, and the like, and the present application does not make a specific limitation thereto.

[0075] For example, the multi-layer liquid guide layer 31 includes five layers of liquid guide layer 31, which are named as first layer, second layer, third layer, fourth layer, and fifth layer from the direction close to the heating element 20 to the direction away from the heating element 20, wherein the first layer and the second layer are liquid guide layers 31 with vertical texture, the third layer and the fourth layer are liquid guide layers 31 with grid texture, and the fifth layer is a liquid guide layer 31 with horizontal texture.

[0076] For example, the multi-layer liquid guide layer 31 includes six, seven, or eight layers of liquid guide layer 31, wherein the first two layers close to the heating element 20 are liquid guide layers 31 with vertical texture, the last two layers away from the heating element 20 are liquid guide layers 31 with horizontal texture, and the remaining middle layers are liquid guide layers 31 with grid texture.

[0077] Table 1 is a data table of the aerosol taste when the statistical variable is the pore size of the ventilation hole 301.

[0078] Table 1

[0079] From the analysis of Table 1, when the pore size of the ventilation hole 301 is 1.5mm to 4.5mm, especially when the pore size is 2.2mm to 2.7mm, the aerosol generated by the atomizing core 100 has a relatively good evaluation score in sweetness, sourness, coolness, and smoke saturation, and the performance in the two indicators of whether the aerosol has a paste taste and whether the liquid is sucked is also acceptable.

[0080] Table 2 is a statistical data table of the aerosol taste when the statistical variable is the number of layers of the liquid guide layer 31, and the pore size of the ventilation hole 301 and the total thickness of the liquid guide layer 31 are fixed values.

[0081] Table 2

[0082] Table 3 is a statistical data table of the aerosol taste when the statistical variable is the number of layers of the liquid guide layer 31, and the pore size of the ventilation hole 301 and the total thickness of the liquid guide layer 31 are fixed values.

[0083] Table 3

[0084] Table 4 is a statistical data table of the aerosol taste when the statistical variable is the number of layers of the liquid guide layer 31, and the pore size of the ventilation hole 301 and the total thickness of the liquid guide layer 31 are fixed values.

[0085] Table 4

[0086] From the analysis of Table 2, Table 3 and Table 4, it can be seen that when the diameter of the vent hole 301 is 2.2mm to 2.7mm, the total thickness of the liquid guide layer 31 is 0.2mm to 1.5mm, and the total number of layers of the liquid guide layer 31 is 2 to 6, the taste indicators are the best, the aroma and sweetness can be brought out, and the taste restoration degree is the highest.

[0087] Table 5 below is a statistical data table of the taste of the aerosol with the texture distribution of the liquid guide layer 31 as the statistical variable, and the diameter of the vent hole 301 and the total thickness of the liquid guide layer 31 as fixed values.

[0088] Table 5

[0089] Table 6 below is a statistical data table of the taste of the aerosol with the texture distribution of the liquid guide layer 31 as the statistical variable, and the diameter of the vent hole 301 and the total thickness of the liquid guide layer 31 as fixed values.

[0090] Table 6

[0091] Table 7 below is a statistical data table of the taste of the aerosol with the texture distribution of the liquid guide layer 31 as the statistical variable, and the diameter of the vent hole 301 and the total thickness of the liquid guide layer 31 as fixed values.

[0092] Table 7

[0093] From the analysis of Table 5, Table 6 and Table 7, it can be seen that when the diameter of the vent hole 301 is 2.2mm to 2.7mm, the total thickness of the liquid guide layer 31 is 0.2mm to 1.5mm, and the texture distribution of the liquid guide layer 31 is vertical lines, grid lines and horizontal lines, the taste indicators are the best, the aroma and sweetness can be brought out, and the taste restoration degree is the highest.

[0094] Referring to FIG. 3, FIG. 3 is a structural schematic diagram of an embodiment of an atomizer provided by the present application.

[0095] Based on this, the present application further provides an atomizer 200, which comprises the atomizing core 100 as described above. The liquid storage cavity in the atomizer 200 is used to store the aerosol substrate, and the atomizing core 100 is at least partially located in the liquid storage cavity, so that the aerosol substrate can enter the atomizing core 100 to supply liquid to the heating element 20. The atomizer 200 is a replaceable atomizer, and the atomizer 200 is detachably connected with the main machine 301 in the electronic atomization device, and the main machine 301 supplies power to the atomizer 200.

[0096] Referring to FIG. 4, FIG. 4 is a structural schematic diagram of an embodiment of an electronic atomization device provided by the present application.

[0097] As shown in FIG. 4, the present application also provides an electronic atomization device 300, which comprises the atomization core 100 as described above or the atomizer 200 as described above. The electronic atomization device 300 comprises a host 310 and the atomizer 200 as described above, and the host 310 is connected with the atomizer 200 and supplies power to the atomizer 200. Wherein, the host 310 and the atomizer 200 can be detachably connected or in an integrated structure.

[0098] Different from the prior art, the present application discloses an electronic atomization device, an atomizer and an atomization core thereof. By optimizing the porosity of the liquid guide body to be 75%-98%, the permeability of the liquid guide body to the aerosol substrate and the flavor substances in the aerosol substrate is better, which is beneficial to improve the taste reduction degree of the generated aerosol after atomization; and the pore size of the air passage is 1.5mm to 4.5mm, which can make the aroma of the front and rear sections of the aerosol balanced, the particle feeling smooth and sweet, and the aroma consistent with the aerosol substrate body, which helps to reduce the carbon deposition on the heating element, and the generated aerosol heat is uniform, and the combination of the porosity of the liquid guide body can greatly improve the taste reduction degree of the aerosol, so that the original taste of the aerosol substrate can be fully expressed.

[0099] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An atomizing core, characterized in that, The aerosol generating device comprises: a liquid guide having a porosity of 75%-98% and a ventilation hole having a diameter of 1.5-6.5 mm; a heating element arranged on the inner wall of the ventilation hole for atomizing the aerosol substrate conducted by the liquid guide and generating aerosol in the ventilation hole.

2. The atomizer core of claim 1, wherein, The diameter of the ventilation hole is 2.2-2.7 mm.

3. The atomizer core of claim 1, wherein, The length of the heating element along the circumference of the ventilation hole is 1 / 2-5 / 6 of the circumference of the ventilation hole.

4. The atomizer core of claim 1, wherein, The heating element is a heating mesh made of one of nickel alloy, iron-chromium alloy and stainless steel.

5. The atomizer core of claim 1, wherein, The atomization core further comprises a wire clamp arranged at one end of the liquid guide, the center hole of the wire clamp is coaxially arranged with the ventilation hole, and the wire clamp is used for fixing the lead wire of the heating element.

6. The atomizer core of claim 1, wherein, The atomization core further comprises a fixing tube, the liquid guide comprises a plurality of liquid guide layers, the plurality of liquid guide layers are arranged on the fixing tube, the ventilation hole is coaxial with the fixing tube, and the plurality of liquid guide layers have at least two liquid guide layers with different textures, wherein the liquid guide layer in contact with the heating element has vertical texture, and the extension direction of the vertical texture is parallel to the axial direction of the fixing tube.

7. The atomizer core of claim 6, wherein, The liquid guide layer in contact with the fixing tube has grid texture or cross texture, and the extension direction of the vertical texture is perpendicular to the extension direction of the cross texture.

8. The atomizer core of claim 6, wherein, The plurality of liquid guide layers have at least vertical texture, grid texture and cross texture, the liquid guide layer in contact with the fixing tube has cross texture, the liquid guide layer with grid texture is located between the liquid guide layer with vertical texture and the liquid guide layer with cross texture.

9. The atomizer core according to claim 7 or 8, characterized in that The bulk density of the liquid guiding layer with the vertical grain texture is 40-75 g / m 2 The bulk density of the liquid guiding layer with the grid texture is 50-75 g / m 2 The bulk density of the liquid guiding layer with the horizontal grain texture is 40-85 g / m 2 .

10. The atomizer core of claim 9, wherein, The material of the liquid guide layer with vertical texture is natural fiber, the material of the liquid guide layer with grid texture is silk cotton, wood pulp cotton or organic cotton, and the material of the liquid guide layer with cross texture is non-woven fabric, silk, wood pulp cotton, polylactic acid or polyethylene terephthalate.

11. The atomizer core of claim 6, wherein, The liquid guide layer comprises a surrounding part and a guide part located at both ends of the surrounding part, the surrounding part is attached to the outer periphery of the heating element, and the guide part is bently connected with the surrounding part and extends outwardly from the fixing tube.

12. The atomizer core of claim 6, wherein, The shaped hole surrounded by the heating element is substantially a circular hole, the heating element is located between the two ends of the liquid guide along the axial direction of the fixing tube, and the distance between the heating element and the liquid guide end to end along the axial direction is 2-50 mm.

13. The atomizer core of claim 6, wherein, The side wall of the fixing tube is provided with a liquid inlet groove and a clamping groove, the length of the clamping groove along the axial direction of the fixing tube is greater than the length of the liquid inlet groove, the clamping groove is provided with an opening at the end of the fixing tube, the end of the plurality of liquid guide layers is clamped in the clamping groove from the opening, and the plurality of liquid guide layers cover the liquid inlet groove.

14. An atomiser characterised in that, The atomizer comprises the atomization core according to any one of claims 1-13.

15. An electronic atomizing device, characterized by, The electronic atomization device comprises a main machine and the atomizer according to claim 14, the main machine is connected with the atomizer and supplies power to the atomizer.

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