Atomization structure and electronic atomization device

Abstract

The utility model provides an atomization structure and an electronic atomization device.The atomization structure comprises a liquid guide cylinder, a liquid inlet channel penetrating in the axial direction of the liquid guide cylinder is formed in the liquid guide cylinder, the inner surface of the circumferential wall of the liquid guide cylinder is a liquid suction face, and the outer surface of the circumferential wall of the liquid guide cylinder is an atomization face; the preheating part is embedded in the circumferential wall of the liquid guide cylinder and located between the liquid suction surface and the atomization surface; the heating element is arranged on the periphery of the atomizing surface, so that the atomizing medium is heated and atomized on the atomizing surface to form aerosol; the preheating piece can preheat the atomizing medium flowing into the liquid inlet channel, so that the viscosity of the atomizing medium is reduced, and the flowing speed of the atomizing medium from the liquid suction face to the atomizing face is increased. In this way, preheating of the atomizing medium is achieved, and the problem of core pasting caused by excessive heating of the atomizing medium due to poor liquidity of the atomizing medium in the liquid guide cylinder is solved; the preheating piece only preheats the atomization medium which is sucked instantly locally, the atomization medium in the liquid storage cavity is prevented from being heated repeatedly continuously, and taste attenuation of the atomization medium is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization, in particular to an atomization structure, and further relates to an electronic atomization device comprising the atomization structure. BACKGROUND

[0002] The viscosity of atomization media on the market is very wide, ranging from tens to hundreds of thousands of cp or mPa.s at room temperature; the viscosity of the atomization medium decreases with increasing temperature, and the lower the viscosity of the atomization medium, the stronger its flowability.

[0003] Most of the atomization structures on the market for atomizing high-viscosity atomization media use porous ceramic atomization cores, which use a cylindrical ceramic provided with a heating element, the cylindrical ceramic is coated with cotton fibers, and then the three are integrally built into a steel pipe; as above, the heat of the heating element is transferred to the steel pipe, which preheats the high-viscosity atomization medium in the entire liquid storage cavity to enhance its flowability and prevent the core from being pasted.

[0004] However, during use of the electronic atomization device, the above atomization structure always preheats the atomization medium in the liquid storage cavity as a whole, rather than only preheating the part of the atomization medium that is immediately being puffed, so it is easy to adversely affect the taste of the atomization medium. CONTENT OF THE INVENTION

[0005] Therefore, the purpose of the present application is to provide an atomization structure that prevents the core from being pasted while not adversely affecting the taste of the atomization medium.

[0006] Another purpose of the present application is to provide an electronic atomization device comprising the above atomization structure.

[0007] In order to achieve the above purpose, the present application provides the following technical solution:

[0008] An atomization structure comprising:

[0009] A liquid guide cylinder having a liquid inlet passage through it in the axial direction, the inner surface of the circumferential wall of the liquid guide cylinder being a liquid suction surface and the outer surface being an atomization surface;

[0010] A preheating element embedded in the circumferential wall of the liquid guide cylinder and located between the liquid suction surface and the atomization surface;

[0011] A heating element provided on the outer periphery of the atomization surface to heat and atomize the atomization medium on the atomization surface to form an aerosol;

[0012] Wherein, the preheating element can preheat the atomization medium flowing into the liquid inlet passage.

[0013] Optionally, in the above atomization structure,

[0014] The preheating member is a heat conducting member to receive heat from the heat generating member through the heat conducting tube;

[0015] Or,

[0016] The preheating member is a self-heating member.

[0017] Optionally, in the above atomization structure,

[0018] The heat conducting tube comprises a first section and a second section at two ends along the axial direction, and the preheating member is embedded in the first section and the second section;

[0019] And / or,

[0020] The preheating member is embedded in the circumferential wall of the heat conducting tube;

[0021] And / or,

[0022] The preheating member is closer to the liquid absorbing surface than to the atomization surface;

[0023] And / or,

[0024] The wall thickness of the circumferential wall of the heat conducting tube is D, the distance between the preheating member and the liquid absorbing surface is H, and 0

[0025] And / or,

[0026] The wall thickness of the preheating member is 0.1mm-0.2mm.

[0027] Optionally, in the above atomization structure,

[0028] The preheating member is a hollow dense tubular structure, and the circumferential wall of the preheating member is provided with a through hole for the flow of atomization medium from the liquid absorbing surface to the atomization surface;

[0029] Or,

[0030] The preheating member is a meshed tube made of a metal mesh.

[0031] Optionally, in the above atomization structure,

[0032] The thermal conductivity of the preheating member is not less than the thermal conductivity of the heat conducting tube;

[0033] And / or,

[0034] The thermal conductivity of the preheating member is greater than 0.5W / (m.k); or, the thermal conductivity of the preheating member is 10W / (m.k)-500W / (m.k).

[0035] Optionally, in the atomization structure, the liquid guide cylinder is a porous material cylinder, and the pores of the porous material cylinder form a communication path connecting the liquid suction surface and the atomization surface.

[0036] The porosity of the porous material cylinder is 10% to 90%.

[0037] And / or,

[0038] The pore size of the porous material cylinder is 5 μm to 50 μm.

[0039] And / or,

[0040] The liquid guide cylinder is a porous ceramic cylinder or a porous glass cylinder.

[0041] Optionally, in the atomization structure,

[0042] The heating element is entirely arranged outside the atomization surface, or the heating element is partially embedded in the atomization surface.

[0043] And / or,

[0044] The heating element is a spiral resistance heating wire wound around the outer periphery of the atomization surface, or the heating element is a heating film, a heating coating or a heating sheet wrapped around at least part of the atomization surface.

[0045] Optionally, in the atomization structure, the liquid guide cylinder, the preheating element and the heating element are a sintered integrated structure.

[0046] An electronic atomization device includes a housing and an atomization structure as described above; the housing is provided with a gas flow channel and a liquid storage cavity, and the atomization structure is arranged in the gas flow channel.

[0047] The liquid inlet of the liquid inlet channel of the atomization structure is communicated with the liquid storage cavity, and the extension direction of the liquid inlet channel is crossed with the extension direction of the gas flow channel.

[0048] Optionally, in the electronic atomization device, the heating element of the atomization structure is wrapped around part of the outer periphery of the atomization surface, and the heating element is located on the side of the atomization surface close to the gas inlet of the gas flow channel.

[0049] In the atomization structure and the electronic atomization device, the preheating member is embedded in the circumferential wall of the liquid guide cylinder and located between the liquid suction surface and the atomization surface. The preheating member has a high temperature. The atomized medium sucked at the moment flows through the liquid inlet channel from the liquid inlet of the liquid inlet channel and exchanges heat with the high-temperature preheating member in the liquid inlet channel, so that the temperature of the atomized medium is preliminarily increased to complete preheating. The viscosity of the preheated atomized medium is reduced, and the flowability is enhanced to quickly flow to the atomization surface through the liquid suction surface and heated by the heating member to form an aerosol. As described above, the preheating of the atomized medium is realized to prevent the problem of the paste core caused by excessive heating of the atomized medium due to poor flowability in the liquid guide cylinder. At the same time, the preheating member located in the circumferential wall of the liquid guide cylinder only locally preheats the atomized medium sucked at the moment. The heat generated by the atomization structure will not spread to the liquid storage cavity, avoiding repeated heating of the atomized medium in the liquid storage cavity, and further avoiding the adverse effects on the taste of the atomized medium and the attenuation of the taste of the atomized medium. BRIEF DESCRIPTION OF DRAWINGS

[0050] 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 embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0051] Figure 1 is a side view of the atomization structure of the present application;

[0052] Figure 2 is a front view of the atomization structure of the present application;

[0053] Figure 3 is Figure 1 is an A-A sectional view of

[0054] Figure 4 is a perspective view of the liquid guide cylinder of the embodiment of the present application;

[0055] Figure 5 is a side view of the liquid guide cylinder of the embodiment of the present application;

[0056] Figure 6 is a front view of the liquid guide cylinder of the embodiment of the present application;

[0057] Figure 7 is a structural schematic view of the atomization structure of another embodiment of the present application;

[0058] Figure 8 is a structural schematic view of the atomization structure of another embodiment of the present application;

[0059] Figure 9This is a cross-sectional view of an electronic atomizing device according to an embodiment of this application;

[0060] Figure 10 for Figure 9 A magnified view of part B.

[0061] superior Figures 1-10 middle:

[0062] 1. Liquid guide tube; 2. Preheating component; 3. Heating component; 4. Atomizing structure; 5. Liquid storage chamber; 6. Gas flow channel;

[0063] 11. Liquid inlet channel; 12. Liquid inlet; 13. Liquid suction surface; 14. Atomizing surface;

[0064] 21. Through hole;

[0065] 61. Air intake. Detailed Implementation

[0066] This application provides an atomizing structure and an electronic atomizing device.

[0067] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0068] like Figures 1-8 As shown in the figure, this application provides an atomizing structure, which includes a liquid guiding cylinder 1, a preheating element 2, and a heating element 3. The liquid guiding cylinder 1 has a liquid inlet channel 11 extending through it along its axial direction. The inner surface of the circumferential wall of the liquid guiding cylinder 1 is a liquid absorption surface 13, and the outer surface is an atomizing surface 14. The preheating element 2 is embedded in the circumferential wall of the liquid guiding cylinder 1 and is located between the liquid absorption surface 13 and the atomizing surface 14. The preheating element 2 can preheat the atomizing medium flowing into the liquid inlet channel 11 to reduce the viscosity of the atomizing medium and increase the flow rate of the atomizing medium from the liquid absorption surface 13 to the atomizing surface 14. The heating element 3 is disposed on the outer periphery of the atomizing surface 14 so that the atomizing medium is heated and atomized on the atomizing surface 14 to form an aerosol.

[0069] It should be noted that the external and internal shapes of the liquid guiding cylinder 1 are not specifically limited, as long as a through hollow space is formed inside the liquid guiding cylinder 1, which forms the liquid inlet channel 11. Optionally, the liquid guiding cylinder 1 is a hollow cylinder, which can be a hollow cylinder with varying diameter or a hollow cylinder with a constant diameter. Preferably, the liquid guiding cylinder 1 is a hollow cylinder with a constant diameter. Along the axial direction of the liquid inlet channel 11, the openings at both ends of the liquid inlet channel 11 are liquid inlets 12.

[0070] It needs to be further explained that the atomization structure of the present application is used in an electronic atomization device, the atomization medium is stored in a liquid storage cavity 5 of the electronic atomization device, and the atomization medium in the liquid storage cavity 5 flows into the liquid inlet channel 11 through the liquid inlet 12. When the electronic atomization device is an electronic cigarette, the atomization medium is tobacco tar.

[0071] The preheating member 2 is embedded in the circumferential wall of the liquid guide cylinder 1 and is located between the liquid suction surface 13 and the atomization surface 14, and has a relatively high temperature. The atomization medium sucked at the moment flows into the liquid inlet channel 11 through the liquid inlet 12 and exchanges heat with the high-temperature preheating member 2 in the liquid inlet channel 11, so that the temperature of the atomization medium is initially raised to complete preheating. The viscosity of the preheated atomization medium is reduced, and the flowability is enhanced, so that the atomization medium can quickly flow to the atomization surface 14 through the liquid suction surface 13 and be heated by the heating member 3 to form an aerosol. As described above, the preheating of the atomization medium is realized, and the problem of the paste core caused by excessive heating of the atomization medium due to poor flowability from the liquid suction surface 13 to the atomization surface 14 of the liquid guide cylinder 1 is prevented. At the same time, the preheating member 2 located in the circumferential wall of the liquid guide cylinder 1 only locally preheats the atomization medium sucked at the moment, and the heat generated by the atomization structure cannot spread to the liquid storage cavity 5 of the electronic atomization device, thereby avoiding repeated heating of the atomization medium in the liquid storage cavity 5, and further avoiding the adverse effects on the taste of the atomization medium and the attenuation of the taste of the atomization medium.

[0072] Further, the heating member 3 is arranged on the outer periphery of the atomization structure, which is conducive to temperature measurement and quality detection.

[0073] In some embodiments of the present application, the liquid guide cylinder 1 can conduct heat to conduct the heat generated by the heating member 3 to the preheating member 2. The preheating member 2 is a heat-conducting member, which can receive the heat from the heating member 3 conducted through the liquid guide cylinder 1, and the preheating member 2 is heated to a high temperature. The high-temperature preheating member 2 exchanges heat with the atomization medium flowing into the liquid inlet channel 11, so that the temperature of the atomization medium is initially raised to complete preheating.

[0074] It needs to be explained that the heating member 3 and the preheating member 2 are completely separated by the liquid guide cylinder 1 and are electrically insulated from each other.

[0075] As described above, the heat of the preheating member 2 comes from the heating member 3, which effectively utilizes the heat of the heating member 3, realizes the comprehensive utilization of energy, and one heating power supply can realize the heating of two components, without the need to configure a heating power supply for the preheating member 2, thereby saving the circuit of electrical connection and simplifying the structure.

[0076] In some parallel embodiments, the preheating member 2 is a self-heating member to preheat the atomization medium flowing into the liquid inlet channel 11. It needs to be explained that the self-heating member refers to a structure member which is externally connected to a heating power supply and is powered to generate heat through the connected heating power supply. The preheating member 2 can be selected from a heating tube and the like.

[0077] As above, the temperature of the preheating member 2 no longer depends on the heating member 3, and the temperature of the preheating member 2 can be flexibly and conveniently automatically adjusted, and the preheating temperature of the atomized medium can be accurately controlled.

[0078] Please refer to the accompanying drawings Figure 3 In some embodiments of the present application, the liquid guide cylinder 1 includes a first section and a second section at both ends along the axial direction, and the first section and the second section are both embedded with the preheating member 2.

[0079] It should be noted that in some embodiments, the liquid guide cylinder 1 further includes an intermediate section connecting the first section and the second section. In some parallel embodiments, the liquid guide cylinder 1 no longer has an intermediate section between the first section and the second section, and the two are directly connected.

[0080] As above, the position of the preheating member 2 can at least correspond to the liquid inlet 12 at both ends of the liquid inlet channel 11, so that the atomized medium flowing into the liquid inlet channel 11 can be preheated at the source of the liquid inlet, ensuring the overall preheating effect of the atomized medium.

[0081] Please refer to the accompanying drawings Figure 3 In some embodiments, the preheating member 2 is entirely embedded in the circumferential wall of the liquid guide cylinder 1.

[0082] As above, the preheating member 2 does not have a local area exposed outside the circumferential wall of the liquid guide cylinder 1, which not only ensures the compactness of the atomization structure, but also provides a certain safety protection effect for the preheating member 2, while avoiding the spread of heat from the preheating member 2 to areas other than the liquid inlet channel 11, ensuring the preheating effect of the atomized medium.

[0083] In some parallel embodiments, the preheating member 2 is partially embedded in the circumferential wall of the liquid guide cylinder 1; as above, certain processing and assembly errors are allowed in the atomization structure on the basis of ensuring performance, simplifying processing and assembly, and saving costs.

[0084] In some embodiments, the preheating member 2 is closer to the liquid suction surface 13 than to the atomization surface 14.

[0085] The function of the preheating member 2 is to preheat the atomized medium, so as to facilitate the rapid wicking of the atomized medium from the liquid suction surface 13 of the liquid guide cylinder 1 to the atomization surface 14. The preheating member 2 being closer to the liquid suction surface 13 than to the atomization surface 14 can sufficiently preheat the atomized medium close to the liquid suction surface 13, so as to improve the flowability from the liquid suction surface 13 to the atomization surface 14, and further improve the liquid guiding rate of the liquid guide cylinder 1 (the liquid guiding rate of the liquid guide cylinder 1 is the flow rate of the atomized medium from the liquid suction surface 13 to the atomization surface 14).

[0086] Further, the wall thickness of the circumferential wall of the liquid guide cylinder 1 is D, the distance from the preheating member 2 to the liquid suction surface 13 is H, and 0

[0087] In some embodiments, the wall thickness of the preheating member 2 is 0.1mm-0.2mm; alternatively, the wall thickness of the preheating member 2 can be any one of 0.1mm, 0.13mm, 0.15mm, 0.17mm, 0.2mm, etc.

[0088] As above, while ensuring that the preheating member 2 has good heat conduction performance, the thickness of the preheating member 2 is not too thick, which does not cause the overall outer diameter of the liquid guide cylinder 1 to be too large, thereby affecting the flow of the flow field.

[0089] Please refer to the accompanying drawings Figures 4-5 In some embodiments of the present application, the preheating member 2 is a hollow dense tubular structure, and the circumferential wall of the preheating member 2 is provided with a through hole 21 for the flow of the atomization medium from the liquid suction surface 13 to the atomization surface 14.

[0090] It should be noted that the preheating member 2 of the dense tubular structure is made of heat-conducting metal or heat-conducting dense non-metal. Alternatively, the heat-conducting metal can be selected from copper, aluminum, silver, nickel, titanium or alloy, etc.; the alloy can be selected from nickel-chromium alloy, iron-chromium alloy, stainless steel, etc. Alternatively, the heat-conducting dense non-metal can be selected from glass, dense ceramic, etc. The through hole 21 is provided with a plurality of through holes; the cross-sectional shape of the through hole 21 can be a regular pattern such as a circle, a waist shape, a rectangle, a rhombus, etc., or an irregular pattern of any shape, as long as it is through in the thickness direction of the preheating member 2.

[0091] The atomization medium flowing into the liquid inlet channel 11 will not directly flow to the atomization surface 14 along the wall thickness direction of the preheating member 2 under the constraint of the dense tube wall of the preheating member 2 which is not provided with a through hole 21, but will move at least a distance in the axial direction of the preheating member 2 to the through hole 21 and then flow to the atomization surface 14 through the through hole 21. As above, the shortest flow trajectory of the atomization medium along the axial direction of the preheating member 2 before flowing into the atomization surface 14 is relatively lengthened, which can relatively increase the heat exchange time of the preheating member 2 and the atomization medium, thereby ensuring the sufficient preheating effect of the atomization medium.

[0092] In some parallel embodiments, the preheating member 2 is a mesh cylinder made of a metal mesh.

[0093] It should be noted that the metal mesh can be selected from copper mesh, aluminum mesh, silver mesh, nickel mesh, titanium mesh or alloy mesh, etc.; the alloy mesh can be selected from nickel-chromium alloy mesh, iron-chromium alloy mesh, stainless steel mesh, etc.

[0094] As above, the preheating member 2 is convenient and fast to process and form, which effectively enriches the structure form of the preheating member 2, and the specific structure form of the preheating member 2 can be selected according to the actual demand, so that the preheating member 2 has strong flexibility and applicability.

[0095] In some embodiments of the present application, the thermal conductivity of the preheating member 2 is not less than the thermal conductivity of the liquid guide cylinder 1. Preferably, the preheating member 2 is a high-thermal-conductivity member, and the thermal conductivity of the preheating member 2 is greater than the thermal conductivity of the liquid guide cylinder 1.

[0096] As above, the high-thermal-conductivity preheating member 2 can quickly receive heat from the heat-generating member 3, and quickly rise to a high temperature, and the temperature of the preheating member 2 can be significantly higher than the temperature of the liquid guide cylinder 1, and quickly conduct heat to the atomization medium flowing into the liquid inlet channel 11, to ensure good and sufficient preheating of the atomization medium.

[0097] In some embodiments, the thermal conductivity of the preheating member 2 is greater than 0.5 W / (m.k).

[0098] Further, the thermal conductivity of the preheating member 2 is at least 0.5 W / (m.k) - 1 W / (m.k); for example, the thermal conductivity of the preheating member 2 is at least any one of 0.5 W / (m.k), 0.6 W / (m.k), 0.7 W / (m.k), 0.8 W / (m.k), 0.9 W / (m.k), 1 W / (m.k), etc.

[0099] Further, the thermal conductivity of the preheating member 2 is at least 0.5 W / (m.k) - 1 W / (m.k); for example, the thermal conductivity of the preheating member 2 is at least any one of 0.5 W / (m.k), 0.6 W / (m.k), 0.7 W / (m.k), 0.8 W / (m.k), 0.9 W / (m.k), 1 W / (m.k), etc.

[0100] As above, the high-thermal-conductivity preheating member 2 can quickly receive heat from the heat-generating member 3, and quickly rise to a high temperature, and the temperature of the preheating member 2 can be significantly higher than the temperature of the liquid guide cylinder 1, and quickly conduct heat to the atomization medium flowing into the liquid inlet channel 11, to ensure good and sufficient preheating of the atomization medium.

[0101] In some embodiments of the present application, the liquid guide cylinder 1 is a porous material cylinder made of a porous material, and the pores of the porous material cylinder form a communication path connecting the liquid suction surface 13 and the atomization surface 14; the atomization medium entering the liquid suction surface 13 flows through the communication path to the atomization surface 14.

[0102] The porosity of the porous material cylinder is 10% - 90%; for example, the porosity of the porous material cylinder is at least one of 10%, 30%, 50%, 70%, 90%, etc.

[0103] Further, the pore size of the porous material cylinder is 5 μm - 50 μm; for example, the pore size of the porous material cylinder is any one of 5 μm, 10 μm, 20 μm, 30 μm, 40 μm, 50 μm, etc.

[0104] As above, the formation of the communication path can be constrained, ensuring the wicking effect of the liquid guide cylinder 1 on the atomized medium, so that the atomized medium can flow smoothly to the atomization surface 14 through the liquid suction surface 13.

[0105] In some embodiments, the liquid guide cylinder 1 is a porous ceramic cylinder made of porous ceramic, or a porous glass cylinder made of porous glass.

[0106] Both porous ceramic and porous glass are porous materials, which are easy to obtain and low in cost, and their porosity and pore size are easy to control, so that the porous ceramic cylinder or the porous glass cylinder meeting the use requirements can be obtained conveniently and quickly. The liquid guide cylinder 1 has various types, and the porous ceramic cylinder or the porous glass cylinder can be selected and used according to actual requirements, so that the flexibility and applicability are strong.

[0107] In some embodiments of the present application, the heating element 3 is entirely external to the atomization surface 14.

[0108] As above, the heating element 3 is located at the outer periphery of the atomization structure, which is convenient for the installation and arrangement of the heating element 3, and is conducive to temperature measurement and quality detection.

[0109] In some parallel embodiments, the heating element 3 is partially embedded in the atomization surface 14. It should be noted that, in the direction of the wall thickness of the liquid guide cylinder 1, the heating element 3 is partially embedded in the atomization surface 14.

[0110] As above, the secure fixing effect of the heating element 3 on the liquid guide cylinder 1 can be ensured, and the heating element 3 will not be disconnected from the liquid guide cylinder 1 during use, thereby increasing the reliable usability of the atomization structure.

[0111] Please refer to the accompanying drawings Figure 2 In some embodiments of the present application, the heating element 3 is a spiral resistance heating wire wound around the outer periphery of the atomization surface 14. The material of the spiral resistance heating wire is any one of nickel-chromium, iron-chromium-aluminum, stainless steel and other high-resistivity materials.

[0112] Please refer to the accompanying drawings Figures 7-8 In some parallel embodiments, the heating element 3 is a heating film or a heating coating or a heating sheet wrapped around at least part of the atomization surface 14.

[0113] Please refer to the accompanying drawings Figure 7 In some embodiments, the heating element 3 is wrapped around the entire outer periphery of the atomization surface 14.

[0114] Please refer to the accompanying drawings Figure 8 In some parallel embodiments, the heating element 3 is wrapped around part of the circular arc surface of the atomization surface 14.

[0115] As above, the structure type and the arrangement form of the heating element 3 are increased, and the heating element 3 with a specific structure type and arrangement form can be selected according to actual requirements, so that the flexibility and applicability are strong. As above, the structure type and the arrangement form of the heating element 3 are increased, and the heating element 3 with a specific structure type and arrangement form can be selected according to actual requirements, so that the flexibility and applicability are strong.

[0116] In some embodiments of the present application, the liquid guide cylinder 1, the preheating piece 2 and the heating piece 3 are a sintered integrated structure.

[0117] It should be noted that the introduction is taken as an example of the porous ceramic cylinder as the liquid guide cylinder 1; the preheating piece 2 and the heating piece 3 processed and formed are placed in the appropriate position of the sintering film tool; the ceramic material powder is filled into the sintering film tool, and pressure is applied to make it form; pre-sintering is carried out at a lower temperature, and finally the sintered integrated structure of the liquid guide cylinder 1, the preheating piece 2 and the heating piece 3 fixed together is obtained.

[0118] As above, the firm integrated connection effect of the liquid guide cylinder 1, the preheating piece 2 and the heating piece 3 can be achieved, and the three will not be separated from each other in the use process, which ensures the reliable usability of the atomization structure. Further, the above sintered integrated atomization structure eliminates components such as cotton fibers and external steel pipes, eliminates complex assembly processes, reduces assembly costs, and at the same time reliably ensures the consistency of product performance.

[0119] Please refer to the accompanying Figures 9-10 In summary, the present application also provides an electronic atomization device, which comprises a shell and an atomization structure 4 as described above. The shell is provided with a gas flow channel 6 and a liquid storage cavity 5; the atomization structure 4 is arranged in the gas flow channel 6; the liquid inlet 12 of the liquid inlet channel 11 of the atomization structure 4 is communicated with the liquid storage cavity 5, and the extension direction of the liquid inlet channel 11 intersects with the extension direction of the gas flow channel 6.

[0120] Optionally, the extension direction of the gas flow channel 6 is a vertical direction, and the extension direction of the liquid inlet channel 11 is a horizontal direction, i.e. the extension direction of the gas flow channel 6 is perpendicular to the extension direction of the liquid inlet channel 11; as above, the transverse arrangement of the atomization structure 4 in the shell is achieved.

[0121] The liquid inlets 12 at both ends of the liquid inlet channel 11 are communicated with the liquid storage cavity 5, which achieves the effect of liquid inlet from both ends of the liquid inlet channel 11 at the same time, and ensures the smooth and rapid liquid supply effect of the atomization medium in the atomization structure 4.

[0122] Since the electronic atomization device of the present application comprises the above-mentioned atomization structure 4, the beneficial effects brought by the atomization structure 4 of the electronic atomization device are described above and will not be repeated here.

[0123] In some embodiments of the present application, the heating piece 3 of the atomization structure 4 is wrapped around part of the outer periphery of the atomization surface 14, and the heating piece 3 is located on the side of the liquid guide cylinder 1 close to the gas inlet 61 of the gas flow channel 6.

[0124] It should be noted that the gas inlet 61 is located below the atomization structure 4. The heating piece 3 is located on the circular arc surface of the side of the liquid guide cylinder 1 close to the gas inlet 61.

[0125] The atomized medium is heated by the heating element 3 to form steam, and is atomized to form aerosol by contacting with the air flowing into the air passage 6, and is finally inhaled by the human body. The heating element 3 is arranged on the side close to the air inlet 61, so that the atomized medium heated to form steam can be fully contacted with the air to reliably atomize to form aerosol.

[0126] The above describes the basic principles of the present application in combination with specific embodiments, but it should be pointed out that the advantages, advantages, effects and the like mentioned in the present application are only examples and cannot be considered as the must-haves of the various embodiments of the present application. In addition, the above-mentioned specific details are only for the purpose of example and for the purpose of understanding, and the above-mentioned details do not limit the present application to the must-haves of the above-mentioned specific details.

[0127] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration shown in the block diagram. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, which mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0128] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombination should be considered as equivalent solutions of the present application.

[0129] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is intended to be consistent with the widest scope consistent with the principles and novel features disclosed herein.

[0130] It should be understood that the adjectives "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments of the present application are only used for clearer description of the technical solutions, and cannot be used to limit the protection scope of the present application.

[0131] The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the forms disclosed herein. Although various example aspects and embodiments have been discussed above, those of ordinary skill in the art will appreciate a variety of modifications, alternatives, permutations, additions, and sub-combinations of the described aspects and embodiments.

Claims

1. An atomizing structure, characterized by, The structure comprises: a liquid guide cylinder (1) having a liquid inlet channel (11) extending through the axial direction thereof, the inner surface of the circumferential wall of the liquid guide cylinder (1) being a liquid suction surface (13) and the outer surface being an atomization surface (14); a preheating element (2) embedded in the circumferential wall of the liquid guide cylinder (1) and located between the liquid suction surface (13) and the atomization surface (14); and a heating element (3) arranged on the outer periphery of the atomization surface (14) to heat and atomize the atomization medium on the atomization surface (14) to form an aerosol. The preheating element (2) can preheat the atomization medium flowing into the liquid inlet channel (11).

2. The atomization structure according to claim 1, wherein the preheating element (2) is a heat conduction element to receive heat from the heating element (3) through the conduction of the liquid guide cylinder (1); or the preheating element (2) is a self-heating element.

3. The atomization structure according to claim 1, wherein the liquid guide cylinder (1) comprises a first section and a second section at both ends along the axial direction thereof, and the preheating element (2) is embedded in the first section and the second section; and / or the preheating element (2) is embedded in the circumferential wall of the liquid guide cylinder (1); and / or the preheating element (2) is closer to the liquid suction surface (13) than to the atomization surface (14); and / or the wall thickness of the circumferential wall of the liquid guide cylinder (1) is D, the distance between the preheating element (2) and the liquid suction surface (13) is H, and 0 < H ≤ 1 / 2D; and / or the wall thickness of the preheating element (2) is 0.1mm-0.2mm.

4. The atomization structure according to claim 1, wherein the preheating element (2) is a hollow dense tubular structure, and the circumferential wall of the preheating element (2) is provided with a through hole (21) for the flow of the atomization medium from the liquid suction surface (13) to the atomization surface (14); or the preheating element (2) is a mesh cylinder made of a metal mesh.

5. The atomization structure according to claim 1, wherein the thermal conductivity of the preheating element (2) is greater than that of the liquid guide cylinder (1); and / or the thermal conductivity of the preheating element (2) is greater than 0.5W / (m.k); or the thermal conductivity of the preheating element (2) is 10W / (m.k)-500W / (m.k). The liquid guide cylinder (1) is a porous material cylinder, and the pores of the porous material cylinder form a communication path connecting the liquid suction surface (13) and the atomization surface (14); wherein the porosity of the porous material cylinder is 10%-90%; and / or the pore size of the porous material cylinder is 5μm-50μm; and / or the liquid guide cylinder (1) is a porous ceramic cylinder or a porous glass cylinder.

7. The atomization structure according to claim 1, wherein the heating element (3) is entirely arranged outside the atomization surface (14), or the heating element (3) is partially embedded in the atomization surface (14); and / or ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 6. The atomizing structure of claim 1, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ The heating element (3) is a spiral resistance heating wire wound around the outer periphery of the atomizing surface (14), or the heating element (3) is a heating film or a heating coating or a heating sheet covering at least part of the outer periphery of the atomizing surface (14).

8. The atomizing structure according to any one of claims 1-7, characterized in that, The liquid guide cylinder (1), the preheating element (2) and the heating element (3) are a sintered integrated structure.

9. An electronic atomizing device, characterized by, The aerosol generating device comprises a shell and an atomizing structure as claimed in any one of claims 1-8; the shell is provided with a gas flow channel (6) and a liquid storage cavity (5), and the atomizing structure is arranged in the gas flow channel (6). The liquid inlet (12) of the liquid inlet channel (11) of the atomizing structure is communicated with the liquid storage cavity (5), and the extension direction of the liquid inlet channel (11) is crossed with the extension direction of the gas flow channel (6).

10. The electronic atomizing device of claim 9, wherein, The heating element (3) of the atomizing structure covers part of the outer periphery of the atomizing surface (14), and the heating element (3) is located on the side of the atomizing surface (14) close to the gas inlet (61) of the gas flow channel (6).

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