Aerosol generating device and atomizer thereof

Abstract

The utility model discloses an aerosol generating device and an atomizer thereof, the atomizer comprises a shell and an atomizing assembly arranged in the shell, the atomizing assembly comprises a liquid storage carrier and an atomizing core, and the liquid storage carrier is arranged on the periphery of the atomizing core; the liquid storage carrier comprises a high-density liquid storage structure and a low-density liquid storage structure, and the high-density liquid storage structure is arranged opposite to the liquid guide surface of the atomizing core, so that by constructing the density gradient on the liquid storage carrier and utilizing the capillary action, efficient atomized liquid transmission is achieved, the residual oil rate is reduced, and the atomized liquid utilization rate can be increased; and the consistency of atomization taste can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of atomization, in particular to an aerosol generating device and an atomizer thereof. Background Art

[0002] At present, in the relevant atomization technology, the oil storage cotton is often unable to effectively utilize the atomized liquid stored therein during the atomization process, especially when the atomized liquid in the atomizer is consumed to a certain extent. Due to the poor pore connectivity of the oil storage cotton, the residual oil cannot be effectively adsorbed and transferred to the atomization core in the atomizer, thereby affecting the smoking taste, producing a burnt smell, and a high residual oil rate. Utility Model Content

[0003] The present application provides an atomizer, comprising a housing, and an atomizing assembly disposed in the housing;

[0004] The atomization assembly includes a liquid storage carrier and an atomization core. The liquid storage carrier is arranged on the periphery of the atomization core. The liquid storage carrier includes a high-density liquid storage structure and a low-density liquid storage structure. The high-density liquid storage structure is arranged opposite to the liquid guide surface of the atomization core.

[0005] In some embodiments, the density of the high-density liquid storage structure is 18%-50% greater than the density of the low-density liquid storage structure.

[0006] In some embodiments, the density of the high-density liquid storage structure does not exceed 0.8 g / cm 3 .

[0007] In some embodiments, the atomization assembly includes a restraining member, which is used to be installed on the circumferential outer side of the liquid storage carrier to restrain the liquid storage carrier so that the portion of the liquid storage carrier opposite to the restraining member forms the high-density liquid storage structure.

[0008] In some embodiments, the housing is provided with a liquid storage cavity, and the atomization assembly is disposed in the liquid storage cavity;

[0009] The inner surface of the liquid storage cavity is provided with a convex portion extending toward one side of the atomizer assembly, and the convex portion is used to squeeze the liquid storage carrier so that the portion of the liquid storage carrier opposite to the convex portion forms the high-density liquid storage structure.

[0010] In some embodiments, the longitudinal length of the protrusion is smaller than the longitudinal length of the liquid storage carrier.

[0011] In some embodiments, the liquid storage carrier includes at least one first sub-liquid storage carrier and at least one second sub-liquid storage carrier, and the first sub-liquid storage carrier and the second sub-liquid storage carrier are stacked together in the longitudinal direction;

[0012] The density of the first sub-liquid storage carrier is greater than the density of the second sub-liquid storage carrier. The first sub-liquid storage carrier is the high-density liquid storage structure, and the second sub-liquid storage carrier is the low-density liquid storage structure.

[0013] In some embodiments, the number of the second sub-liquid storage carriers is at least two;

[0014] The first sub-liquid storage carriers and the second sub-liquid storage carriers are alternately arranged in the stacking direction.

[0015] In some embodiments, the liquid storage carrier comprises liquid storage cotton or non-woven fabric.

[0016] In some embodiments, the atomizer assembly includes a mounting bracket;

[0017] The mounting bracket is installed in the shell, a plurality of liquid guide holes are provided on the mounting bracket, the atomizer core is installed in the mounting bracket, the liquid storage carrier is sleeved on the outer periphery of the mounting bracket, and the liquid guide surface of the atomizer core is arranged opposite to the liquid guide holes, and the atomized liquid in the liquid storage carrier enters the atomizer core through the liquid guide holes.

[0018] In some embodiments, the inner side wall of the high-density liquid storage structure of the liquid storage carrier is arranged opposite to the liquid guide hole;

[0019] The atomized liquid in the high-density liquid storage structure enters the atomizing core through the liquid guide hole.

[0020] The present application also provides an aerosol generating device, comprising the atomizer described in any of the above embodiments.

[0021] The implementation of the present application has the following beneficial effects: the aerosol generating device of the present application includes an atomizer, the atomizer includes a shell and an atomization component arranged in the shell, the atomization component includes a liquid storage carrier and an atomization core, the liquid storage carrier is arranged on the periphery of the atomization core; the liquid storage carrier includes a high-density liquid storage structure and a low-density liquid storage structure, the high-density liquid storage structure and the atomization core are arranged relative to each other, so as to construct a density gradient on the liquid storage carrier and utilize capillary action to achieve efficient atomization liquid (such as smoke oil) transmission, reduce the residual oil rate, improve the utilization rate of the atomization liquid, and ensure the consistency of the atomization taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0023] Figure 1 is a schematic diagram of the structure of an atomizer in some embodiments of the present application;

[0024] Figure 2 yes Figure 1 A cross-sectional view of the atomizer shown;

[0025] Figure 3 is a schematic diagram of the cooperation between the liquid storage carrier and the restraining member in some embodiments of the present application;

[0026] Figure 4 is a schematic diagram of the structure of the liquid storage cavity in some embodiments of the present application;

[0027] Figure 5 is a schematic diagram of the structure of the liquid storage carrier in some embodiments of the present application;

[0028] Figure 6 is an exploded view of the liquid storage carrier in some embodiments of the present application.

[0029] In the accompanying drawings, 10-housing; 11-air flow channel; 12-liquid storage chamber; 20-atomization assembly; 21-mounting bracket; 22-atomization core; 221-liquid guide; 222-heating element; 23-liquid storage carrier; 231-first sub-liquid storage carrier; 232-second sub-liquid storage carrier; 24-restraint member; 30-base; 40-first sealing cover; 50-second sealing cover; 60-liquid absorption member. DETAILED DESCRIPTION

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0031] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "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 number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0032] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0033] First embodiment

[0034] See also Figures 1 to 3 The present application discloses an atomizer, which may include a housing 10, an atomizing assembly 20, a base 30, a first sealing cover 40, a second sealing cover 50, and a liquid absorbing member 60.

[0035] The housing 10 has an air flow channel 11 and a liquid storage cavity 12; the atomizer assembly 20 is disposed in the housing 10, and the atomizer assembly 20 may include an atomizer core 22 and a liquid storage carrier 23, and the liquid storage carrier 23 is disposed on the periphery of the atomizer core 22; the liquid storage carrier 23 includes a high-density liquid storage structure and a low-density liquid storage structure, and the high-density liquid storage structure is disposed opposite to the liquid guide surface of the atomizer core 22. For example, the liquid storage carrier 23 is generally cylindrical, and has a through inner cavity, and the atomizer core 22 can be accommodated in the inner cavity. At this time, the liquid guide surface of the atomizer core 22 (such as the circumferential outer side surface of the atomizer core 22) is disposed opposite to the circumferential inner side surface of the high-density liquid storage structure, and the atomized liquid in the liquid storage carrier 23 is introduced into the atomizer core 22 through the liquid guide surface by the high-density liquid storage structure, so that the atomizer core 22 is heated and atomized to form an aerosol.

[0036] In this embodiment, the density of the high-density liquid storage structure is 18%-50% greater than the density of the low-density liquid storage structure. Further, the density of the high-density liquid storage structure is 20%-50% greater than the density of the low-density liquid storage structure, such as the density of the high-density liquid storage structure is 35% greater than the density of the low-density liquid storage structure.

[0037] In this embodiment, the density of the high-density liquid storage structure does not exceed 0.8 g / cm 3 For example, the density of the high-density liquid storage structure can be 0.06 g / cm 3 The density of the low-density liquid storage structure can be 0.06 g / cm 3 Of course, the density of the high-density liquid storage structure and the density of the low-density liquid storage structure can be selected and set according to actual needs, and no specific limitation is made here.

[0038] In this embodiment, the density value of the liquid storage carrier 23 can be obtained by the ratio of mass to volume. Figure 2 The ratio of the cross-sectional areas of different parts in the longitudinal direction shown in FIG. Figure 2 Of course, the density value of the liquid storage carrier 23 can also be obtained by the water displacement method, and the specific implementation method is not specifically limited here.

[0039] For example Figure 2 As shown, in the present embodiment, the first sealing cover 40 and the second sealing cover 50 can be respectively installed on the axial ends of the atomizing assembly 20, and the first sealing cover 40 can be installed on the base 30, and the base 30 can be installed at the open part of the housing 10. The base 30 is installed at the open part of the housing 10 by means of snap connection, threaded connection or interference fit, and the base 30 can be provided with an air intake channel for fresh air from the outside to enter the atomizer. The first sealing cover 40 and the second sealing cover 50 are mainly used to fix the atomizing assembly 20 and isolate the liquid storage chamber 12 to prevent the atomized liquid in the liquid storage chamber 12 from leaking out of the liquid storage chamber 12, thereby causing oil and liquid leakage. The first sealing cover 40 and the second sealing cover 50 can be made of silicone material.

[0040] In this embodiment, a mouthpiece may be provided at one end of the housing 10, and the liquid absorbing member 60 may be provided in the housing 10 and close to one side of the mouthpiece, so that when the aerosol generated by the atomizing assembly 20 flows in the airflow channel 11, if the aerosol is cooled and condensed liquid is generated or the atomized liquid that is not completely heated and atomized can be absorbed by the liquid absorbing member 60 to avoid being inhaled by the consumer, thereby improving safety and experience. The liquid absorbing member 60 may include but is not limited to liquid absorbing cotton.

[0041] like Figure 2As shown, the atomizer assembly 20 may include a mounting bracket 21, which is mounted in the inner cavity of the liquid storage carrier 23. The mounting bracket 21 may be roughly tubular, and a plurality of liquid guide holes are provided on the mounting bracket 21. The liquid guide holes may extend along the axial and / or circumferential intervals of the mounting bracket 21, and the liquid guide holes may include but are not limited to circular holes, strip holes or special-shaped holes.

[0042] The atomizer core 22 is installed in the mounting bracket 21, and the liquid storage carrier 23 is sleeved on the outer periphery of the mounting bracket 21. The liquid guide surface of the atomizer core 22 is arranged opposite to the liquid guide hole, so that the atomized liquid in the liquid storage carrier 23 can enter the atomizer core 22 through the liquid guide hole, so that the atomizer core 22 is heated and atomized to form an aerosol. Further, the inner side wall of the high-density liquid storage structure of the liquid storage carrier 23 is arranged opposite to the liquid guide hole, and the atomized liquid in the high-density liquid storage structure enters the atomizer core 22 through the liquid guide hole, so that the atomizer core 22 is heated and atomized to form an aerosol.

[0043] like Figure 2 As shown, in this embodiment, the atomizer core 22 may include a liquid-conducting liquid 221 and a heating element 222 mounted on the liquid-conducting liquid 221. The liquid-conducting liquid 221 may be a hollow columnar structure, and the liquid-conducting liquid 221 may include but is not limited to liquid-conducting cotton and porous ceramics.

[0044] The heating element 222 may include a heating part and a pin connected to the heating part. The heating part may be attached to or embedded in the inner wall of the liquid-conducting body 221, or the heating part may be embedded in the liquid-conducting body 221. The heating part may include but is not limited to a heating wire, a heating sheet, a heating net or a heating track. The pin may be inserted into the base 30 to be mechanically and electrically connected to the power supply device.

[0045] like Figure 2 and Figure 3 As shown, in this embodiment, the atomizer assembly 20 further includes a restraining member 24, which is used to be installed on the circumferential outer side of the liquid storage carrier 23 to restrain the liquid storage carrier 23, so that the portion of the liquid storage carrier 23 opposite to the restraining member 24 forms a high-density liquid storage structure, and the liquid storage carrier 23 forms a low-density liquid storage structure except for the portion of the high-density liquid storage structure. In this embodiment, the liquid storage carrier 23 can be used as Figure 2 The ratio of the cross-sectional areas of different parts in the longitudinal direction shown in the figure can be used to obtain the density ratio of different parts in the longitudinal direction of the liquid storage carrier 23. Therefore, the cross-sectional area of ​​the inner circle of the constraint 24 and the cross-sectional area of ​​the part of the liquid storage carrier 23 not constrained by the constraint 24 can be measured, and the density ratio of the high-density liquid storage structure to the low-density liquid storage structure can be obtained. Other methods of detecting density can also be used, and the specific implementation method is not specifically limited here.

[0046] Furthermore, the liquid storage carrier 23 is in a hollow column shape and is used to store the atomized liquid. The restraining member 24 is used to be installed on the circumferential outer side of the liquid storage carrier 23 to restrain the liquid storage carrier 23, so that the density of the portion of the liquid storage carrier 23 opposite to the restraining member 24 is greater than the density of other portions of the liquid storage carrier 23, thereby constructing a density gradient in the longitudinal direction (or in the height direction / axial direction) of the liquid storage carrier 23, and utilizing capillary action to achieve efficient atomized liquid (such as e-liquid) transmission, which can improve the utilization rate of the atomized liquid, is not easy to produce a burnt smell, and can ensure the consistency of the atomized taste.

[0047] Capillary action is due to the interaction between the liquid and the solid surface. When the liquid contacts a material with micro-pores, it will rise or fall along the inner wall of the pores due to the surface tension. In the present application, by constructing a higher density oil storage area near the atomizer core 22 and forming a gradient with the low density area away from the atomizer core 22, the principle of capillary action can be utilized, that is, the liquid will spontaneously migrate along the tiny channels (pores in the high-density area) to make up for the energy difference caused by the surface tension.

[0048] The high-density structure (the "thin" end of the capillary) and the low-density structure (the "thick" end of the capillary) of the liquid storage carrier 23 interact with each other. Since the high-density structure of the liquid storage carrier 23 has smaller pores, it can provide greater capillary pulling force like a small pipe, thereby effectively transporting the atomized liquid (such as smoke oil) in the low-density structure to the atomizer core 22.

[0049] In this embodiment, the liquid storage carrier 23 includes liquid storage cotton or non-woven fabric, such as liquid storage cotton. Of course, the liquid storage carrier 23 can also be made of other liquid storage materials, which are not specifically limited here.

[0050] In this embodiment, the restraining member 24 is disposed opposite to the liquid guide hole, so that the atomized liquid in the liquid storage carrier 23 can enter the atomizing core 22 from the liquid guide hole more efficiently and accurately.

[0051] In this embodiment, the restraining member 24 is roughly annular, and the restraining member 24 can be made of metal, such as stainless steel, aluminum or aluminum alloy, etc., and can be made of lightweight metal. The metal has a certain rigidity and can sufficiently restrain the liquid storage carrier 23. Of course, the restraining member 24 can also be made of plastic, which is generally lighter in weight and is conducive to the lightweight design of the atomizer.

[0052] In this embodiment, the constraint 24 is a circumferentially closed structure, that is, the constraint 24 can be an integral annular structure. When assembling the liquid storage carrier 23, since the liquid storage carrier 23 can be made of liquid storage cotton or non-woven fabric, the constraint 24 can be directly sleeved on the periphery of the portion of the liquid storage carrier 23 that needs to be constrained from the longitudinal direction of the liquid storage carrier 23. Of course, the constraint 24 can also be a circumferentially open structure, so that the constraint 24 itself has a certain elasticity of movement, and can be radially sleeved on the periphery of the portion of the liquid storage carrier 23 that needs to be constrained from the circumferential side of the liquid storage carrier 23, or can be directly sleeved on the periphery of the portion of the liquid storage carrier 23 that needs to be constrained from the longitudinal direction of the liquid storage carrier 23. In addition, when the constraint 24 is a metal part, such as aluminum or aluminum alloy, the constraint 24 can also have a certain size adjustment function, and the radial constraint scale of the constraint 24 can be adjusted, and then the density of the constrained portion of the liquid storage carrier 23 can be adjusted.

[0053] In this embodiment, the height dimension of the restraining member 24 is smaller than the height dimension of the liquid storage carrier 23 .

[0054] In this embodiment, the thickness of the restraining member 24 may be 0.1-0.2 mm.

[0055] In this embodiment, the height dimension of each restraining member 24 at each position is consistent with the thickness dimension.

[0056] In this embodiment, both ends of the restraining member 24 in the height direction (longitudinal direction) are spaced apart from both ends of the liquid storage carrier 23 in the height direction, that is, the restraining member 24 is installed roughly in the middle of the liquid storage carrier 23 .

[0057] In the present application, by sleeve-mounting the constraint member 24 on the liquid storage carrier 23 , the density of the cross section of the liquid storage carrier 23 can be increased, and the degree of constraint can be adjusted according to the inner diameter of the constraint member 24 , thereby constructing a structure of the liquid storage carrier 23 with gradient pores.

[0058] As shown in Table 1 below, experimental data show that the structure of the liquid storage carrier 23 can significantly reduce the residual oil rate of the liquid storage carrier 23, and the residual oil rate decreases significantly (4%-6%). When the density increases by 30%, the residual oil decreases more steadily, and there is no significant increase when the density is further increased to 50%. In addition, it can ensure that TPM (total particulate matter, mainstream smoke particulate matter) is basically the same as the original, that is, while reducing residual oil and improving utilization, it can also ensure that the single-port oil supply is relatively consistent with the original.

[0059]

[0060] Table 1

[0061] Second embodiment

[0062] Compared with the first embodiment, the second embodiment mainly uses the convex portion 131 of the liquid storage cavity 13 to construct a high-density liquid storage structure and a low-density liquid storage structure for the liquid storage carrier 23 .

[0063] In this embodiment, the density of the high-density liquid storage structure is 18%-50% greater than the density of the low-density liquid storage structure. Further, the density of the high-density liquid storage structure is 20%-50% greater than the density of the low-density liquid storage structure, such as the density of the high-density liquid storage structure is 35% greater than the density of the low-density liquid storage structure.

[0064] In this embodiment, the density of the high-density liquid storage structure does not exceed 0.8 g / cm 3 For example, the density of the high-density liquid storage structure can be 0.06 g / cm 3 The density of the low-density liquid storage structure can be 0.06 g / cm 3 Of course, the density of the high-density liquid storage structure and the density of the low-density liquid storage structure can be selected and set according to actual needs, and no specific limitation is made here.

[0065] See also Figure 4 The housing 10 is provided with a liquid storage cavity 13 , and the atomization assembly 20 is disposed in the liquid storage cavity 13 .

[0066] The inner surface of the liquid storage cavity 13 is provided with a convex portion 131 extending toward one side of the atomizer assembly 20, and the convex portion 131 is used to squeeze the liquid storage carrier 23, so that the portion of the liquid storage carrier 23 opposite to the convex portion 131 forms a high-density liquid storage structure, and the portion of the liquid storage carrier 23 other than the high-density liquid storage structure forms a low-density liquid storage structure. The liquid storage carrier 23 may include but is not limited to liquid storage cotton or non-woven fabric.

[0067] In this embodiment, the longitudinal length (height length / axial length) of the protrusion 131 is smaller than the longitudinal length (height length / axial length) of the liquid storage carrier 23, so that the portion of the liquid storage carrier 23 opposite to the protrusion 131 forms a high-density liquid storage structure, and the portion of the liquid storage carrier 23 other than the high-density liquid storage structure forms a low-density liquid storage structure. In this embodiment, the density ratio of different portions of the liquid storage carrier 23 in the longitudinal direction can be obtained by the ratio of the cross-sectional areas of different portions of the liquid storage carrier 23 in the longitudinal direction. Therefore, the cross-sectional area of ​​the inner circle of the protrusion 131 and the cross-sectional area of ​​the portion of the liquid storage carrier 23 not squeezed by the protrusion 131 can be measured, and the density ratio of the high-density liquid storage structure to the low-density liquid storage structure can be obtained.

[0068] In this embodiment, the protrusion 131 may be an annular integral structure to squeeze and densify the circumferential surface of a portion of the structure of the liquid storage carrier 23, thereby improving the consistency of the gaps in the high-density liquid storage structure.

[0069] In this embodiment, the thickness of the protrusion 131 can be selected and set according to actual needs and is not specifically limited here.

[0070] In this embodiment, the inner cavity of the liquid storage cavity 13 can form the liquid storage cavity 12, and the liquid storage cavity 13 can be an independent structure, or the liquid storage cavity 13 can be regarded as a part of the housing 10. The liquid storage cavity 13 can also be defined as a "liquid storage cup".

[0071] It can be understood that the liquid storage cavity 13 is provided with a convex portion 131, and the convex portion 131 can be used to increase the density of a part of the structure of the liquid storage cavity 13, so as to construct a structure of the liquid storage cavity 13 with gradient pores.

[0072] As shown in Table 2 below, experimental data show that the provision of the liquid storage cavity 13 can significantly reduce the residual oil rate of the liquid storage carrier 23 (such as liquid storage cotton). In addition, the TPM (total particulate matter, mainstream smoke particulate matter) can be ensured to be basically consistent with the original state, that is, while reducing the residual oil and improving the utilization rate, the single-port oil supply can also be ensured to be relatively consistent with the original.

[0073]

[0074] Table 2

[0075] Third embodiment

[0076] Compared with the first embodiment, the third embodiment mainly adopts different composition structures of the liquid storage carrier 23 itself to construct a high-density liquid storage structure and a low-density liquid storage structure.

[0077] In this embodiment, the density of the high-density liquid storage structure is 18%-50% greater than the density of the low-density liquid storage structure. Further, the density of the high-density liquid storage structure is 20%-50% greater than the density of the low-density liquid storage structure, such as the density of the high-density liquid storage structure is 35% greater than the density of the low-density liquid storage structure.

[0078] In this embodiment, the density of the high-density liquid storage structure does not exceed 0.8 g / cm 3 For example, the density of the high-density liquid storage structure can be 0.06 g / cm 3 The density of the low-density liquid storage structure can be 0.06 g / cm 3 Of course, the density of the high-density liquid storage structure and the density of the low-density liquid storage structure can be selected and set according to actual needs, and no specific limitation is made here.

[0079] like Figure 5 and Figure 6As shown, in this embodiment, the overall structure of the liquid storage carrier 23 is roughly columnar, and the liquid storage carrier 23 may include at least one first sub-liquid storage carrier 231 and at least one second sub-liquid storage carrier 232, and the first sub-liquid storage carrier 231 and the second sub-liquid storage carrier 232 are stacked together in the longitudinal direction (axial direction / height direction).

[0080] The density of the first liquid storage carrier 231 is greater than the density of the second liquid storage carrier 232. The first liquid storage carrier 231 is a high-density liquid storage structure, and the second liquid storage carrier 232 is a low-density liquid storage structure. In this embodiment, the density value of the liquid storage carrier 23 can be obtained by the ratio of mass to volume, so the density values ​​of the first liquid storage carrier 231 and the second liquid storage carrier 232 can be obtained respectively.

[0081] Furthermore, the number of the second sub-liquid storage carriers 232 is at least two, and the first sub-liquid storage carriers 231 and the second sub-liquid storage carriers 232 are alternately arranged in the stacking direction. For example, the number of the second sub-liquid storage carriers 232 is two, and the two second sub-liquid storage carriers 232 are respectively arranged on both sides of the first sub-liquid storage carrier 231 in the longitudinal direction, one second sub-liquid storage carrier 232 is on the upper side of the first sub-liquid storage carrier 231, and the other second sub-liquid storage carrier 232 is on the lower side of the first sub-liquid storage carrier 231.

[0082] Of course, the second sub-liquid storage carrier 232 can also be other quantities, which is not specifically limited here.

[0083] In this embodiment, the longitudinal length of the first sub-liquid storage carrier 231 is less than or equal to the longitudinal length of the second sub-liquid storage carrier 232, so that the structure of the first sub-liquid storage carrier 231 is more compact. Of course, the relative sizes of the first sub-liquid storage carrier 231 and the second sub-liquid storage carrier 232 can be selected and set according to actual needs, and no specific limitation is made here.

[0084] In this embodiment, when there are multiple second sub-liquid storage carriers 232, the density of the multiple second sub-liquid storage carriers 232 may be different, as long as the density is less than the density of the first sub-liquid storage carrier 231, and the longitudinal lengths of the multiple second sub-liquid storage carriers 232 may be the same or different.

[0085] In this embodiment, the liquid storage carrier 23 may include but is not limited to liquid storage cotton or non-woven fabric. Of course, the liquid storage carrier 23 may also be made of foamed metal or porous ceramic. Among them, the material of the first sub-liquid storage carrier 231 and the second sub-liquid storage carrier 232 may be the same, for example, the first sub-liquid storage carrier 231 and the second sub-liquid storage carrier 232 may both be made of liquid storage cotton. Alternatively, the first sub-liquid storage carrier 231 and the second sub-liquid storage carrier 232 may both be made of non-woven fabric. Alternatively, the first sub-liquid storage carrier 231 and the second sub-liquid storage carrier 232 may both be made of foamed metal.

[0086] Of course, the materials of the first sub-liquid storage carrier 231 and the second sub-liquid storage carrier 232 may be different. For example, the first sub-liquid storage carrier 231 may be made of liquid storage cotton, and the second sub-liquid storage carrier 232 may be made of non-woven fabric. Alternatively, the first sub-liquid storage carrier 231 may be made of non-woven cotton, and the second sub-liquid storage carrier 232 may be made of liquid storage cotton. Alternatively, the first sub-liquid storage carrier 231 may be made of liquid storage cotton, and the second sub-liquid storage carrier 232 may be made of porous ceramics.

[0087] In addition, when there are multiple second sub-liquid storage carriers 232, the materials of all the second sub-liquid storage carriers 232 can be the same or different, which is not specifically limited here.

[0088] As shown in Table 3, experimental data show that the structure of the liquid storage carrier 23 can significantly reduce the residual oil rate of the liquid storage carrier 23 (such as oil storage cotton) (average 3-4%), and the density change is not too large (that is, the density of the first sub-liquid storage carrier 231 can be 0.063cm 3 , the second sub-liquid storage carrier 232 is 0.053 cm 3 ), can ensure that TPM (total particulate matter, mainstream smoke particulate matter) is basically the same as the original, that is, while reducing residual oil and improving utilization rate, it can also ensure that the single-port oil supply is relatively consistent with the original.

[0089]

[0090] Table 3

[0091] Fourth embodiment

[0092] The atomizer of the fourth embodiment may be any combination of the first embodiment, the second embodiment and the third embodiment. For example, the atomizer of the fourth embodiment includes both the liquid storage carrier 23 and the restraining member 24 of the first embodiment and the liquid storage cavity 13 of the second embodiment. Alternatively, the atomizer of the fourth embodiment includes both the liquid storage cavity 13 of the second embodiment and the liquid storage carrier 23 of the third embodiment.

[0093] Fifth embodiment

[0094] The present application provides an aerosol generating device, including a nebulizer and a power supply device connected to the nebulizer to supply power to the nebulizer. The nebulizer may be the nebulizer of the first embodiment, the second embodiment, the third embodiment or the fourth embodiment.

[0095] The aerosol generating device can heat and atomize atomized liquid into aerosol, and the atomized liquid includes but is not limited to tobacco oil, liquid medicine or other liquid matrix or semi-liquid matrix.

[0096] It can be understood that the present application uses capillary action to achieve efficient atomized liquid (such as e-liquid) transmission by constructing a density gradient in the longitudinal direction of the liquid storage carrier 23. The capillary action is due to the interaction force between the liquid and the solid surface. When the liquid contacts the material with fine pores, it will rise or fall along the inner wall of the pore due to the effect of surface tension. In the present application, by constructing a higher density liquid storage area near the atomizer core 22 and forming a gradient with the low density liquid storage area away from the atomizer core, the principle of capillary action can be utilized, that is, the liquid will spontaneously migrate along the tiny channel (pores in the high density area) to make up for the energy difference caused by surface tension. The high density liquid storage area (the "thin" end of the capillary) and the low density liquid storage area (the "thick" end of the capillary) of the liquid storage carrier 23 (such as liquid storage cotton) interact with each other. Since the high density liquid storage area has smaller pores, it can provide greater capillary tension like a small pipe, thereby effectively transporting the atomized liquid in the low density liquid storage area to the atomizer core 22.

[0097] The liquid storage carrier 23 of the present application not only improves the utilization rate of the atomized liquid and reduces the residual oil rate, but also improves the taste stability of the atomizer / aerosol generating device due to the continuity of the atomized liquid supply.

[0098] This application takes advantage of the physical phenomenon (capillary action) to enable the atomizer to work continuously and stably without the need for additional energy or complex mechanical structures, thus simplifying the structure of the atomizer and reducing manufacturing costs. Through the capillary physical process, it is ensured that the atomizer / aerosol generating device can maintain a good atomization effect even when the amount of atomized liquid is small during use, thereby improving the user experience.

[0099] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. An atomizer, characterized in that: It comprises a housing, and an atomizing assembly arranged in the housing; The atomization assembly includes a liquid storage carrier and an atomization core. The liquid storage carrier is arranged on the periphery of the atomization core. The liquid storage carrier includes a high-density liquid storage structure and a low-density liquid storage structure. The high-density liquid storage structure is arranged opposite to the liquid guide surface of the atomization core.

2. The atomizer according to claim 1, characterized in that The density of the high-density liquid storage structure is 18%-50% greater than the density of the low-density liquid storage structure.

3. The atomizer according to claim 1, characterized in that The density of the high-density liquid storage structure does not exceed 0.8 g / cm 3 .

4. The atomizer according to claim 1, characterized in that The atomization assembly includes a restraining member, which is used to be installed on the circumferential outer side of the liquid storage carrier to restrain the liquid storage carrier so that the portion of the liquid storage carrier opposite to the restraining member forms the high-density liquid storage structure.

5. The atomizer according to claim 1, characterized in that The shell is provided with a liquid storage cavity, and the atomization assembly is arranged in the liquid storage cavity; The inner surface of the liquid storage cavity is provided with a convex portion extending toward one side of the atomizer assembly, and the convex portion is used to squeeze the liquid storage carrier so that the portion of the liquid storage carrier opposite to the convex portion forms the high-density liquid storage structure.

6. The atomizer according to claim 5, characterized in that The longitudinal length of the protrusion is smaller than the longitudinal length of the liquid storage carrier.

7. The atomizer according to claim 1, characterized in that The liquid storage carrier comprises at least one first sub-liquid storage carrier and at least one second sub-liquid storage carrier, wherein the first sub-liquid storage carrier and the second sub-liquid storage carrier are stacked together in the longitudinal direction; The density of the first sub-liquid storage carrier is greater than the density of the second sub-liquid storage carrier. The first sub-liquid storage carrier is the high-density liquid storage structure, and the second sub-liquid storage carrier is the low-density liquid storage structure.

8. The atomizer according to claim 7, characterized in that The number of the second sub-liquid storage carriers is at least two; The first sub-liquid storage carriers and the second sub-liquid storage carriers are alternately arranged in the stacking direction.

9. The atomizer according to any one of claims 1 to 8, characterized in that: The liquid storage carrier includes liquid storage cotton or non-woven fabric.

10. The atomizer according to any one of claims 1 to 8, characterized in that The atomization assembly includes a mounting bracket; The mounting bracket is installed in the shell, a plurality of liquid guide holes are provided on the mounting bracket, the atomizer core is installed in the mounting bracket, the liquid storage carrier is sleeved on the outer periphery of the mounting bracket, and the liquid guide surface of the atomizer core is arranged opposite to the liquid guide holes, and the atomized liquid in the liquid storage carrier enters the atomizer core through the liquid guide holes.

11. The atomizer according to claim 10, characterized in that The inner side wall of the high-density liquid storage structure of the liquid storage carrier is arranged opposite to the liquid guide hole; The atomized liquid in the high-density liquid storage structure enters the atomizing core through the liquid guide hole.

12. An aerosol generating device, characterized in that: A nebulizer comprising any one of claims 1 to 11.

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