Atomization assembly, atomizer and aerosol generating device

Abstract

The invention discloses an atomization assembly, an atomizer and an aerosol generating device. The atomization assembly comprises an outer cover, a support and an atomization core, and a liquid guide hole is formed in the side wall of the outer cover; the support is installed in an inner cavity of the outer cover, and the atomizing core is installed in an inner cavity of the support. The support is of a hollow tubular structure, and a liquid inlet hole is formed in the side wall of the support. The lower portion of the side wall of the support protrudes outwards to form the protruding portion, and the protruding portion is in interference fit with the inner side wall of the outer cover, so that the support and the outer cover are relatively fixed, no extra fastener is needed for connection, assembly is more convenient and simpler, automatic assembly production can be achieved, and production efficiency is improved. In addition, the convex part can also achieve a certain sealing effect, so that the risk of oil leakage and liquid leakage can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of atomization, and particularly relates to an atomization component, an atomizer and an aerosol generating device. Background Art

[0002] An aerosol generating device can heat an atomization liquid to generate an aerosol, and can be applied to the fields of medical atomization and electronic cigarettes. The core component of the aerosol generating device is an atomization component. The atomization component in the related technology includes an outer tube, an inner tube and an atomization core. The atomization core is installed in the inner tube, and the inner tube is installed in the outer tube. The outer tube and the inner tube are usually straight tubes. Fixing parts are needed to connect the outer tube and the inner tube together. The assembly is cumbersome, the precision requirements for the inner diameter and outer diameter of the inner tube are high, and automatic assembly is difficult, which limits the production efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an atomization component, an atomizer and an aerosol generating device.

[0004] The technical solution adopted by the present invention to solve its technical problem is to construct an atomization component, including an outer cover, a bracket and an atomization core. A plurality of liquid guide holes are provided on the side wall of the outer cover;

[0005] The bracket is installed in the inner cavity of the outer cover, and the atomization core is installed in the inner cavity of the bracket; the bracket is of a hollow tubular structure, and a plurality of liquid inlet holes are provided on the side wall of the bracket; a convex part is protruded outward from the lower part of the side wall of the bracket, and the convex part is in interference fit with the inner side wall of the outer cover.

[0006] In some embodiments, the lower part of the side wall of the bracket first bends outward horizontally and then bends downward and reversely bends inward horizontally to form the convex part; the inner side of the convex part is a groove structure.

[0007] In some embodiments, the lower end of the side wall of the bracket first bends outward horizontally and then bends upward to form the convex part.

[0008] In some embodiments, the lower end of the side wall of the bracket first bends outward horizontally and then bends downward to form the convex part.

[0009] In some embodiments, the lower end of the side wall of the bracket extends outward horizontally to form the convex part.

[0010] In some embodiments, the end face of the lowermost end of the convex part is spaced from the end face of the lower end of the side wall of the bracket, or the end face of the lowermost end of the convex part is flush with the end face of the lower end of the side wall of the bracket.

[0011] In some embodiments, the convex part is prepared by at least one of the processes of cold heading, stamping, extrusion or powder metallurgy.

[0012] In some embodiments, the convex portion has an annular structure.

[0013] In some embodiments, a plurality of ventilation grooves are provided at the upper end and / or the lower end of the bracket.

[0014] In some embodiments, the thickness of the bracket is 0.05 mm - 1 mm. In some embodiments, the bracket is an integral structure.

[0015] In some embodiments, a portion of the inner sidewall of the outer cover opposite to the upper end of the bracket bulges outward to form a recessed groove on the inner sidewall of the outer cover, and the recessed groove forms a ventilation gap between the inner sidewall of the outer cover and the upper end of the bracket.

[0016] In some embodiments, the number of the recessed grooves is one, and the recessed groove is an annular structure; or, there are a plurality of the recessed grooves, and the plurality of recessed grooves are arranged at intervals and continuously along the circumferential direction of the outer cover.

[0017] In some embodiments, the outer cover includes a first tubular portion, a second tubular portion, and a connecting portion. The connecting portion axially connects the first tubular portion and the second tubular portion. The first tubular portion, the second tubular portion, and the connecting portion are coaxially arranged. The cross-sectional dimension of the first tubular portion is larger than that of the second tubular portion. The cross-sectional dimension of the connecting portion gradually decreases from the first tubular portion to one end of the second tubular portion, and the outer side surface of the connecting portion is smoothly and continuously arranged;

[0018] A plurality of the liquid guide holes are provided on the sidewall of the first tubular portion, and the bracket and the atomization core are installed in the inner cavity of the first tubular portion.

[0019] In some embodiments, the atomization assembly further includes a fixing seat installed in the inner cavity of the bracket and disposed near the lower end of the bracket.

[0020] In some embodiments, the height of the fixing seat is greater than the height of the convex portion.

[0021] The present invention also provides an atomizer, including a housing, an atomization assembly, and a fixing assembly; the atomization assembly is the atomization assembly described in any one of the above embodiments. The atomization assembly and the fixing assembly cooperate with each other and are jointly installed in the housing. The fixing assembly is provided with a conductive member electrically connected to the atomization core of the atomization assembly.

[0022] The present invention also provides an aerosol generating device, including the atomizer of the above embodiment, and a power supply assembly connected to the atomizer.

[0023] Implementing the present invention has the following beneficial effects: The atomization assembly includes an outer cover, a bracket, and an atomization core. The side wall of the outer cover is provided with a plurality of liquid guide holes; the bracket is installed in the inner cavity of the outer cover, and the atomization core is installed in the inner cavity of the bracket; the bracket is of a hollow tubular structure, and the side wall of the bracket is provided with a plurality of liquid inlet holes; a convex portion is protruded outward from the lower part of the side wall of the bracket, and the convex portion is in interference fit with the inner side wall of the outer cover. The interference fit between the convex portion and the inner side wall of the outer cover makes the bracket and the outer cover relatively fixed, without the need to use additional fasteners for connection, and the assembly is more convenient and simple, and automated assembly production can be realized to improve production efficiency. In addition, the convex portion can also play a certain sealing effect and reduce the risk of oil leakage and liquid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the present invention, the present invention will be further described below in conjunction with the drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. In the drawings:

[0025] Figure 1 is a schematic structural diagram of an atomizer in some embodiments of the present invention;

[0026] Figure 2 is an exploded view of an atomizer in some embodiments of the present invention;

[0027] Figure 3 is a partial schematic structural diagram of an atomizer in some embodiments of the present invention;

[0028] Figure 4 is Figure 3 a cross-sectional view of the atomizer in;

[0029] Figure 5 is a schematic structural diagram of an atomization assembly in some embodiments of the present invention;

[0030] Figure 6 is a cross-sectional view of an atomization assembly in some embodiments of the present invention;

[0031] Figure 7 is a cross-sectional view of an atomization assembly in some other embodiments of the present invention;

[0032] Figure 8 is a cross-sectional view of an atomization assembly in some other embodiments of the present invention;

[0033] Figure 9 is a cross-sectional view of an atomization assembly in some other embodiments of the present invention;

[0034] Figure 10 is a cross-sectional view of an atomization assembly in some other embodiments of the present invention;

[0035] Figure 11 It is a schematic structural diagram of the atomizing component in some other embodiments of the present invention;

[0036] Figure 12 is Figure 11 a detailed view of the atomizing component in Detailed Embodiments

[0037] For a clearer understanding of the technical features, objectives, and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientation or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation, only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific orientation, so it should not be construed as a limitation to the present invention.

[0038] It should also be noted that, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. When an element is referred to as being "above" or "below" another element, the element can be "directly" or "indirectly" located above the other element, or there may also be one or more intermediate elements. Terms such as "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. However, those skilled in the art should clearly understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, the detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present invention.

[0040] The present invention discloses an aerosol generating device, which can be used to heat an atomizing liquid to generate an aerosol. The atomizing liquid includes, but is not limited to, e-liquid or medicinal liquid. The aerosol generating device can be used for, but is not limited to, medical atomization or electronic cigarettes.

[0041] The aerosol generating device includes an atomizer and a power supply component connected to the atomizer. The power supply component can be used to provide a working circuit for the atomizer, and the power supply component can include, but is not limited to, a battery, a circuit board, and an air flow switch. When the aerosol generating device is an electronic cigarette, the power supply component can be a cigarette rod structure.

[0042] As Figure 1 and Figure 2 shown, the atomizer can include a housing 20, an atomization component 10, and a fixing component 30. The atomization component 10 and the fixing component 30 cooperate with each other and are installed together in the housing 20. The fixing component 30 is provided with a conductive member 34 electrically connected to the atomization core 13 of the atomization component 10.

[0043] In some embodiments, in this embodiment, the housing 20 can be made of a hard insulating material, such as phenolic plastic, polyurethane plastic, epoxy plastic, unsaturated polyester plastic, furan plastic, silicone resin, allyl resin, etc. and their modified resins as the matrix. The housing 20 is generally a longitudinally extending structure along a central axis direction, that is, its length along the central axis direction is much greater than its width and thickness in two perpendicular directions in the cross section. An air outlet is provided at the upper end of the housing 20, and an air guide tube extends downward from the periphery of the air outlet. The lower end of the housing 20 is open, and a liquid storage cavity for storing the atomizing liquid is formed inside the housing 20. The air guide tube can be a plastic part or a metal part. For example, it can be a metal part, such as made of stainless steel, etc. It is a hollow circular tube structure. Of course, the air guide tube can also be made of a high molecular polymer with good stability. Its material, shape, and size can be selected and set according to requirements, and no specific limitation is made here.

[0044] Referring to Figures 2 to 6 , in some embodiments, the atomization component 10 includes an outer cover 11, a bracket 12, and an atomization core 13. A plurality of liquid guide holes 1111 are provided on the side wall of the outer cover 11. The liquid guide holes 1111 can be circumferentially spaced along the side wall of the outer cover 11. The liquid guide holes 1111 can be round holes, square holes, or special-shaped holes. The round holes include oval holes, and the square holes include rectangular holes and square holes.

[0045] The bracket 12 is installed in the inner cavity of the outer cover 11. The bracket 12 is of a hollow tubular structure. The bracket 12 may have opposite upper and lower ends. A plurality of liquid inlet holes 121 are provided on the side wall of the bracket 12. The liquid inlet holes 121 may be arranged at intervals circumferentially along the side wall of the bracket 12. The bracket 12 may be a round hole, a square hole or a special-shaped hole. The round hole includes an oval hole, and the square hole includes a rectangular hole and a square hole.

[0046] A convex portion 122 is protruded outward from the lower part of the side wall of the bracket 12. The convex portion 122 is in interference fit with the inner side wall of the outer cover 11 (as shown in the combination Figure 6 ), so that the bracket 12 and the outer cover 11 are relatively fixed, and there is no need to use additional fasteners for connection, and the assembly is more convenient and simple, and automatic assembly production can be realized to improve production efficiency. In addition, when the convex portion 122 is in interference fit with the inner side wall of the outer cover 11, the liquid guiding hole 1111 is located above the convex portion 122. The convex portion 122 can play a certain sealing effect to prevent the atomized liquid from flowing out through the gap between the bracket 12 and the outer cover 11, and the atomized liquid of the atomization core 13 or the condensate generated by the atomizer can also flow into the groove structure through the inner side wall of the bracket 12, which can reduce the risk of oil leakage and liquid leakage.

[0047] Further, the atomization core 13 is installed in the inner cavity of the bracket 12, and the atomization core 13 may be arranged opposite to the liquid inlet hole 121. The atomized liquid in the liquid storage cavity of the outer shell 20 can enter the gap between the outer cover 11 and the bracket 12 through the liquid guiding hole 1111, and then enter the atomization core 13 through the liquid inlet hole 121 for heating and atomization in the atomization core 13. Of course, when the gap between the outer cover 11 and the bracket 12 is small, the atomized liquid in the liquid storage cavity of the outer shell 20 can enter the liquid inlet hole 121 through the liquid guiding hole 1111.

[0048] In some embodiments, the atomization assembly may further include a liquid storage body 14. The liquid storage body 14 is installed in the inner cavity of the outer cover 11 and the liquid storage body 14 is sleeved on the outer side surface of the bracket 12. The liquid storage body 14 is arranged opposite to the liquid guiding hole 1111 and the liquid inlet hole 121. The atomized liquid in the liquid storage cavity can enter the liquid storage body 14 through the liquid guiding hole 1111, and then enter the atomization core 13 through the liquid storage body 14 and the liquid inlet hole 121 for heating and atomization in the atomization core 13. Preferably, the liquid storage body 14 may be a porous material with microporous capillary effect such as porous ceramic, foamed metal, porous glass or rigid glass fiber tube. Alternatively, the liquid storage body 14 may be a liquid storage cotton. In some embodiments, the lower side surface of the liquid storage body 14 abuts against the upper side surface of the convex portion 122.

[0049] In some embodiments, the convex portion 122 is in a ring structure.

[0050] As Figure 6As shown, in some embodiments, the lower part of the side wall of the bracket 12 first bends outward horizontally, then bends downward and then bends inward horizontally in the reverse direction to form a convex part 122, and the inner side of the convex part 122 is a groove structure.

[0051] As Figure 6 or Figure 7 shown, the convex part 122 may include a first horizontal part 1221, a vertical part 1222 extends downward from the outer side of the first horizontal part 1221, and a second horizontal part 1223 extends by bending from the lower end of the vertical part 1222. Of course, the joints of the first horizontal part 1221, the vertical part 1222 and the second horizontal part 1223 may all be rounded structures. In some embodiments, the longitudinal cross-sectional shape of the convex part 122 may be C-shaped or semi-moon-shaped, and no specific limitation is made here.

[0052] When the atomization assembly includes a liquid storage 14, the lower side surface of the liquid storage 14 may abut against the upper side surface of the first horizontal part 1221, and the convex part 122 can support and limit the liquid storage 14. Of course, in some embodiments, the liquid storage 14 may not be provided, and no specific limitation is made here.

[0053] As Figure 8 shown, in some other embodiments, the lower end of the side wall of the bracket 12 first bends outward horizontally and then bends upward to form the convex part 122. The outer side surface of the convex part 122 is in interference fit with the inner side wall of the outer cover 11. Further, the convex part 122 may include a horizontal part 1221a, and the outer side surface of the horizontal part 1221a bends upward to form a vertical part 1222a, and the outer side surface of the vertical part 1222a is in interference fit with the inner side wall of the outer cover 11.

[0054] As Figure 9 shown, in some other embodiments, the lower end of the side wall of the bracket 12 first bends outward horizontally and then bends downward to form the convex part 122. The outer side surface of the convex part 122 is in interference fit with the inner side wall of the outer cover 11. Further, the convex part 122 may include a horizontally bent part 1221b, and the outer side surface of the horizontally bent part 1221b bends downward to form a vertically bent part 1222b, and the outer side surface of the vertically bent part 1222b is in interference fit with the inner side wall of the outer cover 11.

[0055] As Figure 10 shown, in some other embodiments, the lower end of the side wall of the bracket 12 extends outward horizontally to form a convex part 122, the convex part 122 may be substantially in a flange structure, and the outer side surface of the convex part 122 is in interference fit with the inner side wall of the outer cover 11.

[0056] In some embodiments, as Figure 6 shown, the end surface of the lowermost end of the convex part 122 is spaced from the end surface of the lower end of the side wall of the bracket 12, or, asFigure 8 Or Figure 9 As shown, the end face of the lowermost end of the convex portion 122 is flush with the end face of the lower end of the side wall of the bracket 12. As Figure 7 shown, the end face of the lowermost end of the convex portion 122 and the end face of the lower end of the side wall of the bracket 12 may be spaced apart or may be regarded as flush.

[0057] In some embodiments, the convex portion 122 is prepared by at least one of cold heading, stamping, extrusion molding or powder metallurgy, or the entire bracket 12 is prepared by at least one of cold heading, stamping, extrusion molding or powder metallurgy. The thickness of the bracket 12 is 0.05 mm - 1 mm. Preferably, the thickness of the bracket 12 may be 0.08 mm - 0.2 mm. For example, the thickness of the bracket 12 is 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.10 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.05 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm, 0.2 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, 0.28 mm, 0.29 mm, 0.3 mm, 0.31 mm, 0.32 mm, 0.33 mm, 0.34 mm, 0.35 mm, 0.36 mm, 0.37 mm, 0.38 mm, 0.39 mm, 0.4 mm, 0.41 mm, 0.42 mm, 0.43 mm, 0.44 mm, 0.45 mm, 0.46 mm, 0.47 mm, 0.48 mm, 0.49 mm, 0.5 mm, 0.51 mm, 0.52 mm, 0.53 mm, 0.54 mm, 0.55 mm, 0.56 mm, 0.57 mm, 0.58 mm, 0.59 mm, 0.6 mm, 0.61 mm, 0.62 mm, 0.63 mm, 0.64 mm, 0.65 mm, 0.66 mm, 0.67 mm, 0.68 mm, 0.69 mm, 0.7 mm, 0.71 mm, 0.72 mm, 0.73 mm, 0.74 mm, 0.75 mm, 0.76 mm, 0.77 mm, 0.78 mm, 0.79 mm, 0.8 mm, 0.81 mm, 0.82 mm, 0.83 mm, 0.84 mm, 0.85 mm, 0.86 mm, 0.87 mm, 0.88 mm, 0.89 mm, 0.9 mm, 0.91 mm, 0.92 mm, 0.93 mm, 0.94 mm, 0.95 mm, 0.96 mm, 0.97 mm, 0.98 mm, 0.99 mm or 1 mm.

[0058] The thickness of the bracket 12 can be set according to actual needs. The overall thickness of the bracket 12 is relatively small, which can reduce the space for the internal structure of the atomizer, making the oil guiding flow path (including the liquid guiding hole 1111 and the liquid inlet hole 121, etc.) smoother.

[0059] In some embodiments, a plurality of ventilation grooves 123 are provided at the upper end and / or the lower end of the bracket 12. For example, a plurality of ventilation grooves 123 are provided at the upper end of the bracket 12. The plurality of ventilation grooves 123 can be arranged at intervals along the circumferential direction of the bracket 12. The ventilation groove 123 can be a U-shaped groove structure, a C-shaped groove structure or a semi-circular groove structure, and its structure can be set according to actual needs. Or, a plurality of ventilation grooves 123 are provided at the lower end of the bracket 12. The plurality of ventilation grooves 123 can be arranged at intervals along the circumferential direction of the bracket 12. The ventilation groove 123 can be a U-shaped groove structure, a C-shaped groove structure or a semi-circular groove structure, and its structure can be set according to actual needs. Or, a plurality of ventilation grooves 123 are provided at the upper end and the lower end of the bracket 12. The plurality of ventilation grooves 123 can be arranged at intervals along the circumferential direction of the bracket 12. The ventilation groove 123 can be a U-shaped groove structure, a C-shaped groove structure or a semi-circular groove structure, and its structure can be set according to actual needs. Of course, a plurality of ventilation notches are provided at the upper end and / or the lower end of the bracket 12.

[0060] By providing the ventilation grooves 123 or ventilation notches, the internal air pressure of the atomization assembly 10 can be balanced, the overall ventilation effect of the atomization assembly 10 can be improved, and the wick can be prevented from getting clogged.

[0061] In some embodiments, the bracket 12 can be a circular columnar structure, and the bracket 12 can be an integral structure for facilitating large-scale production and processing.

[0062] As Figure 11 and Figure 12 shown, in some embodiments, a part of the inner side wall of the outer cover 11 opposite to the upper end of the bracket 12 bulges outward to form a recessed groove 11a on the inner side wall of the outer cover 11. The recessed groove 11a forms a ventilation gap between the inner side wall of the outer cover 11 and the upper end of the bracket 12, which can balance the internal air pressure of the atomization assembly 10, improve the overall ventilation effect of the atomization assembly 10, and prevent the wick from getting clogged.

[0063] In some embodiments, the number of the recessed grooves 11a is one, and the recessed groove 11a is an annular structure; or, there are a plurality of the recessed grooves 11a, and the plurality of recessed grooves 11a are arranged continuously at intervals along the circumferential direction of the outer cover 11, and no specific limitation is made here.

[0064] In some embodiments, the outer cover 11 includes a first tubular portion 111, a second tubular portion 112, and a connecting portion 113. The connecting portion 113 axially connects the first tubular portion 111 and the second tubular portion 112. The first tubular portion 111, the second tubular portion 112, and the connecting portion 113 are coaxially arranged. The cross-sectional dimension of the first tubular portion 111 is larger than that of the second tubular portion 112. The cross-sectional dimension of the connecting portion 113 gradually decreases from the first tubular portion 111 to one end of the second tubular portion 112, and the outer side surface of the connecting portion 113 is smoothly continuous. There is no need to process a sealing groove structure on the outer side surface of the connecting portion 113. For the outer cover structure of the related art, a sealing groove needs to be processed on the upper through groove, which requires machining, and a relatively thick wall thickness is required. If it is too thin, it is easy to lack materials during machining and the defective ratio is high. At the same time, if the outer cover is too thick, it will cause the liquid guiding efficiency of the e-liquid to slow down, occupy too much internal space, affect the overall assembly efficiency and cause more material waste, restricting the further promotion of the atomization core assembly. However, the outer cover 11 of the present invention, by adopting the first tubular portion 111, the connecting portion 113, and the second tubular portion 112 connected in sequence, does not need to process a sealing groove structure, and a certain sealing effect can be achieved between the connecting portion 113 and the second tubular portion 112. Preferably, both the first tubular portion 111 and the second tubular portion 112 are circular tube structures. The connecting portion 113 can form the above-mentioned concave groove 11a.

[0065] Further, a plurality of liquid guiding holes 1111 are provided on the side wall of the first tubular portion 111. The bracket 12, the atomization core 13, and the liquid storage 14 are installed in the inner cavity of the first tubular portion 111.

[0066] In addition, the axial length of the bracket 12 can be greater than or equal to the axial length of the first tubular portion 111. Wherein, when the bracket 12 is installed in the outer cover 11, the lower end of the bracket 12 can protrude from the lower end of the outer cover 11 or the lower end of the bracket 12 is substantially flush with the lower end of the outer cover 11.

[0067] Further, the outer cover 11 can be an integral structure. The overall structure of the outer cover 11 is convenient to process, and large-scale automated production can be realized.

[0068] As Figure 2 shown, in some embodiments, the atomization assembly 10 further includes a fixing seat 15 installed in the inner cavity of the bracket 12 and disposed near the lower end of the bracket 12. Preferably, the height of the fixing seat 15 is greater than the height of the convex portion 122.

[0069] The fixing seat 15 is generally a columnar structure. The fixing seat 15 is provided with a first air flow hole 151, and a plurality of pin slots 152 are provided on the circumference of the fixing seat 15.

[0070] The atomization core 13 may include a liquid guide 131 and a heating element 132. The liquid guide 131 may be generally in a hollow columnar structure. The heating element 132 may include a heating part 1321 and at least two pins 1322 connected to the heating part 1321. The heating part 1321 may be installed in the inner cavity of the liquid guide 131, and the pins 1322 may pass through the pin slots 152 to be electrically connected to the conductive member 34.

[0071] Preferably, the liquid guide 131 may be a porous material with microporous capillary effect such as porous ceramic, foamed metal, porous glass or hard glass fiber tube. Alternatively, the liquid guide 131 may be a liquid guide cotton.

[0072] Preferably, the heating part 1321 may be a heating mesh, heating wire, heating sheet, heating circuit, heating track, heating coating or heating film, etc. The material of the heating part 1321 may be a metal material, metal alloy, graphite, carbon, conductive ceramic or a composite material of other ceramic materials and metal materials with appropriate impedance. The metal or alloy materials with appropriate impedance include at least one of nickel, cobalt, zirconium, titanium, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nickel-chromium alloy, nickel-iron alloy, iron-chromium alloy, iron-chromium-aluminum alloy, titanium alloy, iron-manganese-aluminum-based alloy or stainless steel, etc.

[0073] As Figure 2 And Figure 4 As shown, in some embodiments, the fixing component 30 may include a fixing base 31 and a base 32 sleeved together. The fixing base 31 may be generally in a columnar structure. The fixing base 31 is provided with a second air flow hole 311 and a mounting groove 312. The upper end of the fixing base 31 may be provided with a slot, and the slot is communicated with the second air flow hole 311. The atomization component 10 is inserted into the slot, and the inner cavity of the liquid guide 131 of the atomization core 13 is communicated with the second air flow hole 311. The mounting groove 312 may be used to mount the conductive member 34.

[0074] As Figure 2 And Figure 4 As shown, the base 32 is generally in a cylindrical structure. The fixing base 31 may be installed in the base 32 in an interference fit manner. The base 32 is provided with a third air flow hole 321 and a mounting hole 322. The third air flow hole 321 is communicated with the second air flow hole 311, and the mounting hole 322 is opposite to and communicated with the mounting groove 312 for installing the conductive member 34. Preferably, both the fixing base 31 and the base 32 may be made of silicone parts, and the conductive member 34 may be a conductive column.

[0075] As Figure 2As shown, in some embodiments, the fixing component 30 may further include a bottom shell 33. The bottom shell 33 is generally in a cylindrical structure. The bottom shell 33 can wrap the base 32, and the bottom shell 33 can be connected to the bottom of the outer shell 20. For example, the two can be connected by snap connection or threaded connection. A through hole 331 may be provided at the bottom of the bottom shell 33, and the third air flow hole 321 and the mounting hole 322 are exposed in the through hole 331.

[0076] As Figure 2 As shown, in some embodiments, a liquid storage member 40 may further be provided in the outer shell 20. The liquid storage member 40 is installed in the liquid storage cavity and the liquid storage member 40 can be sleeved on the outer periphery of the atomization component 10. The liquid storage member 40 includes, but is not limited to, liquid storage cotton.

[0077] As Figure 2 and Figure 4 As shown, in some embodiments, the atomizer may further include a connecting cylinder 50. The connecting cylinder 50 can be used to connect the air duct of the outer shell 20 and the outer cover 11. An annular isolation portion may be provided in the inner cavity of the connecting cylinder 50. The isolation portion defines a first connection groove and a second connection groove in the inner cavity of the connecting cylinder 50. The first connection groove can be connected to the air duct, and the second connection groove is connected to the outer cover 11. Specifically, the second connection groove is connected to the second tubular portion 112.

[0078] It can be understood that the above embodiments only represent the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. An atomizing assembly, characterized in that: It comprises an outer cover (11), a bracket (12) and an atomizing core (13), wherein a side wall of the outer cover (11) is provided with a plurality of liquid guide holes (1111); The bracket (12) is installed in the inner cavity of the outer cover (11), and the atomizer core (13) is installed in the inner cavity of the bracket (12); the bracket (12) is a hollow tubular structure, and the side wall of the bracket (12) is provided with a plurality of liquid inlet holes (121); the lower part of the side wall of the bracket (12) is convex outward to form a convex part (122), and the convex part (122) is interference fit with the inner wall of the outer cover (11).

2. The atomizer assembly according to claim 1, characterized in that: The lower part of the side wall of the bracket (12) is first bent outwardly and then bent downwardly and then bent inwardly and then formed into the convex part (122); the inner side of the convex part (122) is a groove structure.

3. The atomizer assembly according to claim 1, characterized in that: The lower end of the side wall of the bracket (12) is first bent outwardly and laterally and then bent upwardly to form the convex portion (122).

4. The atomizer assembly according to claim 1, characterized in that: The lower end of the side wall of the bracket (12) is first bent outwardly and laterally and then bent downwardly to form the convex portion (122).

5. The atomizer assembly according to claim 1, characterized in that: The lower end of the side wall of the bracket (12) extends outward laterally to form the convex portion (122).

6. The atomizer assembly according to claim 1, characterized in that: The end surface of the lowermost end of the protrusion (122) is spaced apart from the end surface of the lower end of the side wall of the bracket (12), or the end surface of the lowermost end of the protrusion (122) is flush with the end surface of the lower end of the side wall of the bracket (12).

7. The atomizer assembly according to claim 1, characterized in that: The convex portion (122) is prepared by at least one process of cold stamping, stamping, extrusion or powder metallurgy.

8. The atomizer assembly according to claim 1, characterized in that: The convex portion (122) is in an annular structure.

9. The atomizer assembly according to claim 1, characterized in that: A plurality of ventilation grooves (123) are provided at the upper end of the support (12) and / or the lower end of the support (12).

10. The atomizer assembly according to claim 1, characterized in that: The thickness of the support (12) is 0.05 mm-1 mm.

11. The atomizer assembly according to claim 1, characterized in that: The bracket (12) is an integrated structure.

12. The atomizer assembly according to any one of claims 1 to 11, characterized in that: The portion of the inner side wall of the outer cover (11) opposite to the upper end of the bracket (12) protrudes outward to form a recessed groove (11a) on the inner side wall of the outer cover (11), and the recessed groove (11a) forms a ventilation gap between the inner side wall of the outer cover (11) and the upper end of the bracket (12).

13. The atomizer assembly according to claim 12, characterized in that: The number of the recessed groove (11a) is one, and the recessed groove (11a) is an annular structure; or, the number of the recessed grooves (11a) is multiple, and the multiple recessed grooves (11a) are continuously arranged at intervals along the circumference of the outer cover (11).

14. The atomizer assembly according to any one of claims 1 to 11, characterized in that: The outer cover (11) comprises a first tubular portion (111), a second tubular portion (112) and a connecting portion (113); the connecting portion (113) axially connects the first tubular portion (111) and the second tubular portion (112); the first tubular portion (111), the second tubular portion (112) and the connecting portion (113) are coaxially arranged; the cross-sectional dimension of the first tubular portion (111) is greater than the cross-sectional dimension of the second tubular portion (112); the cross-sectional dimension of the connecting portion (113) gradually decreases from the first tubular portion (111) to one end of the second tubular portion (112); and the outer side surface of the connecting portion (113) is smoothly and continuously arranged; The side wall of the first tubular portion (111) is provided with a plurality of liquid guide holes (1111), and the bracket (12) and the atomizing core (13) are installed in the inner cavity of the first tubular portion (111).

15. The atomizer assembly according to any one of claims 1 to 11, characterized in that: The atomization assembly further comprises a fixing seat (15) which is installed in the inner cavity of the bracket (12) and is arranged close to the lower end of the bracket (12).

16. The atomizer assembly according to claim 15, characterized in that: The height of the fixing seat (15) is greater than the height of the protrusion (122).

17. An atomizer, characterized in that: It comprises a housing (20), an atomizing assembly and a fixing assembly (30); the atomizing assembly is the atomizing assembly according to any one of claims 1 to 16, the atomizing assembly and the fixing assembly (30) cooperate with each other and are installed together in the housing (20), and the fixing assembly (30) is provided with a conductive member electrically connected to the atomizing core (13) of the atomizing assembly.

18. An aerosol generating device, characterized in that: The invention comprises the atomizer according to claim 17, and a power supply component connected to the atomizer.

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