Atomizer and aerosol generating device

Abstract

The utility model discloses an atomizer and an aerosol generating device. The atomizer is provided with an atomizing air channel and comprises liquid storage cotton and a heating body, the liquid storage cotton surrounds the atomizing air channel and is used for storing an aerosol generating substrate, and the liquid storage cotton is provided with a mounting cavity. The heating body comprises a base body and a heating part, at least part of the base body is arranged in the mounting cavity, the base body comprises an atomizing surface and a liquid guide passage, the atomizing surface is exposed and communicated with the atomizing air passage, the liquid guide passage is used for allowing the aerosol generating substrate to flow to the atomizing surface, and the heating part is arranged on the atomizing surface and is used for heating the aerosol generating substrate when being electrified. According to the atomizer, the heating piece is connected with the liquid storage cotton through the base body, compared with the prior art that the heating piece directly makes contact with the liquid storage cotton, the situation that the liquid storage cotton makes contact with the high temperature for a long time, and consequently the biological property changes can be effectively avoided, the safety performance and the atomization performance of the atomizer can be guaranteed, and the suction experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of atomization technology, and more particularly, to an atomizer and an aerosol-generating device. BACKGROUND

[0002] An aerosol-generating device is a small device that can use a heating technology to act on an aerosol-generating substrate and generate an aerosol, mainly including two types of devices for atomizing solid and liquid substrates. In the related art, the aerosol-generating device for the liquid substrate includes an atomizer, which includes a liquid storage cotton and a heating element. The liquid storage cotton is used to store the aerosol-generating substrate, and the heating element is in contact with the liquid storage cotton and is used to heat the aerosol-generating substrate in the liquid storage cotton to make the substrate generate an aerosol. However, due to the poor temperature resistance of the liquid storage cotton, the liquid storage cotton may change in physical properties under long-term high-temperature action, thereby causing the safety performance and atomization performance of the atomizer to deteriorate. CONTENT OF THE UTILITY MODEL

[0003] The present application provides an atomizer and an aerosol-generating device to solve at least one of the above technical problems.

[0004] The present application provides an atomizer. The atomizer has an atomization air passage, and includes a liquid storage cotton and a heating body. The liquid storage cotton surrounds the atomization air passage and is used to store an aerosol-generating substrate. The liquid storage cotton is provided with a mounting cavity. The heating body includes a base and a heating element. At least part of the base is arranged in the mounting cavity and includes an atomization surface and a liquid guide passage. The atomization surface is exposed and communicates with the atomization air passage. The liquid guide passage is used for the aerosol-generating substrate to flow to the atomization surface. The heating element is arranged on the atomization surface and is used to heat the aerosol-generating substrate when powered.

[0005] In some embodiments, the atomization surface is tangent to the atomization air passage.

[0006] In some embodiments, the atomization surface is located in the atomization air passage.

[0007] In some embodiments, the atomizer further includes a gas guide tube. At least part of the gas guide tube is arranged in the liquid storage cotton. The atomization air passage is formed in the gas guide tube. The gas guide tube is provided with a through hole. The through hole is used to communicate the mounting cavity and the atomization air passage.

[0008] In some embodiments, the cross-sectional size of the through hole is smaller than the cross-sectional size of the atomization surface.

[0009] In some embodiments, the atomizer further comprises an electrically conductive member connected to the base body and having a contact end in electrical contact with the heat-generating member to transmit electric energy to the heat-generating member.

[0010] In some embodiments, the electrically conductive member comprises a deformable portion having the contact end, the deformable portion being configured to be deformed to elastically abut the contact end against the heat-generating member.

[0011] In some embodiments, the electrically conductive member further comprises a protrusion through which the contact end is in electrical contact with the heat-generating member.

[0012] In some embodiments, the base body is a porous ceramic, and the liquid-guiding passage comprises micropores in the base body.

[0013] In some embodiments, the atomizer further comprises a filler filled between an inner wall of the mounting cavity and the base body, the filler being configured to tightly fit the base body and the mounting cavity.

[0014] In some embodiments, the base body further comprises a liquid-guiding surface opposite to the atomization surface, and the atomization surface protrudes from an inner wall of the liquid storage cotton in a direction from the liquid-guiding surface to the atomization surface.

[0015] In some embodiments, the mounting cavity comprises at least two mounting cavities spaced apart in a circumferential direction of the atomization air passage, and the heat-generating body comprises at least two heat-generating members, the base bodies of the at least two heat-generating members being respectively arranged in the corresponding mounting cavities.

[0016] The aerosol generating device of the embodiments of the present application comprises an electric control assembly and the atomizer of any of the above embodiments. The electric control assembly is electrically connected to the atomizer.

[0017] In the atomizer and the aerosol generating device of the embodiments of the present application, the heat-generating member is connected to the liquid storage cotton through the base body, which can effectively avoid physical changes of the liquid storage cotton caused by long-term contact with high temperature, thereby ensuring the safety performance and atomization performance of the atomizer and improving the user's smoking experience.

[0018] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.Figure 1 is a structural schematic diagram of an aerosol generating device according to some embodiments of the present application;

[0021] Figure 2 is a structural schematic diagram of an aerosol generating device according to some embodiments of the present application; Figure 1 is a sectional schematic diagram of an embodiment of an atomizer in the aerosol generating device shown in

[0022] Figure 3 is a sectional schematic diagram of an embodiment of an atomizer in the aerosol generating device shown in Figure 1 is a sectional schematic diagram of a heating element of the atomizer in the aerosol generating device shown in

[0023] Figure 4 is a sectional schematic diagram of another embodiment of an atomizer in the aerosol generating device shown in Figure 1 is a sectional schematic diagram of another embodiment of an atomizer in the aerosol generating device shown in

[0024] Figure 5 is a sectional schematic diagram of another embodiment of an atomizer in the aerosol generating device shown in Figure 1 is a sectional schematic diagram of another embodiment of an atomizer in the aerosol generating device shown in

[0025] Figure 6 is a sectional schematic diagram of another embodiment of an atomizer in the aerosol generating device shown in Figure 1 is a sectional schematic diagram of another embodiment of an atomizer in the aerosol generating device shown in

[0026] Main element symbol explanation:

[0027] 1000 aerosol generating device;

[0028] 100 atomizer; 300 electric control assembly;

[0029] 10 liquid storage cotton, 11 installation cavity, 13 inner wall, 15 outer wall; 30 heating element, 31 base, 311 atomizing surface, 313 liquid guiding passage, 315 liquid guiding surface, 317 peripheral surface, 33 heating member; 50 air guiding tube, 51 atomizing air passage, 53 through hole; 70 electrically conductive member, 701 contact end, 71 protruding portion; 80 filling member; 90 housing. DETAILED DESCRIPTION

[0030] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0032] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0035] It is to be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] In the related art, an aerosol-generating device for a liquid substrate includes an atomizer including a liquid storage cotton for storing an aerosol-generating substrate and a heating element in contact with the liquid storage cotton and for heating the aerosol-generating substrate in the liquid storage cotton to make the substrate generate an aerosol. However, since the liquid storage cotton has poor temperature resistance, the liquid storage cotton can change in physical properties under long-term high-temperature action, thereby degrading the safety and atomization performance of the atomizer. To solve the above problem, please refer to Figure 1 The embodiments of the present application provide an atomizer 100 and an aerosol-generating device 1000.

[0037] Please refer to Figure 1 The aerosol-generating device 1000 provided by the embodiments of the present application includes an electronic control assembly 300 and an atomizer 100, and the electronic control assembly 300 is electrically connected to the atomizer 100.

[0038] It can be understood that the aerosol-generating device 1000 is a structure capable of generating an aerosol by heating an aerosol-generating substrate. The aerosol-generating substrate is a product that has been treated and can generate an aerosol after being heated. The aerosol-generating substrate can be in a liquid state, or in a full solid state or a semi-solid state. In the present application, the aerosol-generating substrate can be in a liquid state. The aerosol can be visible or invisible and can include vapor (e.g., fine particulate matter in a gaseous state, which is usually a liquid or a solid at room temperature), as well as gas and liquid droplets of condensed vapor.

[0039] Specifically, in some embodiments, the electronic control assembly 300 can include a controller and a power supply, and the controller is electrically connected to the power supply. Wherein, in the case that the aerosol-generating device 1000 is being puffed, the controller can control the power supply to transmit electric energy to the atomizer 100, so that the atomizer 100 heats and atomizes the aerosol-generating substrate, thereby making the aerosol-generating substrate generate an aerosol for the user to puff; in the case that the aerosol-generating device 1000 is not being puffed, the atomizer 100 will not heat and atomize the aerosol-generating substrate.

[0040] In the present embodiment, the aerosol-generating device 1000 includes the atomizer 100, and thus the aerosol-generating device 1000 has at least the same advantages as the atomizer 100. The advantages of the aerosol-generating device 1000 are described below in relation to the atomizer 100.

[0041] Referring to Figure 1 and Figure 3 , and in combination with Figure 2 , Figure 4 , Figure 5 or Figure 6 , the atomizer 100 provided by the present embodiment has an atomization air passage 51. The atomizer 100 includes a liquid storage cotton 10 and a heating body 30. The liquid storage cotton 10 surrounds the atomization air passage 51 and is configured to store an aerosol-generating substrate. The liquid storage cotton 10 is provided with a mounting cavity 11. The heating body 30 includes a base body 31 and a heating element 33. At least a portion of the base body 31 is arranged in the mounting cavity 11 and includes an atomization surface 311 and a liquid guide passage 313. The atomization surface 311 is exposed to the atomization air passage 51. The liquid guide passage 313 is configured to allow the aerosol-generating substrate to flow to the atomization surface 311. The heating element 33 is arranged on the atomization surface 311 and is configured to heat the aerosol-generating substrate when powered.

[0042] Further, in some embodiments, the atomizer 100 further includes a housing 90, and the liquid storage cotton 10 is arranged in the housing 90. The housing 90 is a component of the atomizer 100 for loading elements other than the housing 90. In this context, the elements other than the housing 90 include, but are not limited to, the liquid storage cotton 10 and the heating element 33. The material of the housing 90 can be a metal material and / or a non-metal material. The metal material includes, but is not limited to, aluminum, iron, steel, or an aluminum alloy. The non-metal material includes, but is not limited to, plastic.

[0043] It can be understood that the atomization air passage 51 can have a regular shape such as a square, a circle, or a triangle, or an irregular shape. The present application does not limit the shape of the atomization air passage 51. The atomization air passage 51 is configured to allow the aerosol generated by heating the aerosol-generating substrate to flow out of the atomizer 100 for a user to inhale. For example, the atomizer 100 can further include a suction element configured to allow the user to inhale the aerosol. The suction element includes a suction air passage that is in communication with the atomization air passage 51. In the case where the user inhales the aerosol-generating device 1000, the generated aerosol can be sequentially inhaled by the user through the atomization air passage 51 and the suction air passage.

[0044] The liquid storage cotton 10 is an element for storing the aerosol generating substrate in the atomizer 100. In some embodiments of the present application, the liquid storage cotton 10 can have a generally annular structure, and the liquid storage cotton 10 includes opposite inner and outer walls 13 and 15, and the mounting cavity 11 is recessed from the inner wall 13 to the outer wall 15. Thus, when the substrate 31 is mounted in the mounting cavity 11, the atomization surface 311 of the substrate 31 can communicate with the atomization air channel 51 through the opening of the mounting cavity 11, so that the normal atomization of the heating element 30 on the aerosol generating substrate can be ensured, and the stability and reliability of the atomizer 100 can be improved. The liquid storage cotton 10 can be an integral structure, which can on the one hand make the liquid storage cotton 10 have good liquid absorption performance, store and retain more aerosol generating substrate, and ensure that there is enough aerosol generating substrate supply during atomization; on the other hand, it is convenient for the assembly of the liquid storage cotton 10, which is conducive to improving the assembly efficiency of the atomizer 100; and on the other hand, it is convenient for the processing and manufacturing of the liquid storage cotton 10, and the production efficiency of the liquid storage cotton 10 is improved.

[0045] The heating element 30 is a device or material that can generate heat energy and transfer the heat energy to the surrounding environment in the atomizer 100. In some embodiments of the present application, the number of heating elements 30 includes at least one. For example, in the case where the number of heating elements 30 includes at least two, the at least two heating elements 30 are distributed along the circumference of the atomization air channel 51, so that the heating efficiency can be improved.

[0046] The substrate 31 is a structure for loading elements such as the heating element 33 in the heating element 30. The material of the substrate 31 includes but is not limited to glass, ceramic, metal and the like. The substrate 31 can be in the form of a flat plate, a cuboid, a square, a triangular prism, a hexagonal prism, a cylinder and the like. The substrate 31 can be processed and manufactured by flow casting, dry pressing, injection molding and the like. In some embodiments of the present application, the substrate 31 further includes a liquid guiding surface 315 opposite to the atomization surface 311, and a circumferential surface 317 connecting the atomization surface 311 and the liquid guiding surface 315, and the liquid guiding passage 313 is at least used to communicate the atomization surface 311 and the liquid guiding surface 315. At least part of the substrate 31 is arranged in the mounting cavity 11, which on the one hand can reduce the space occupied by the heating element 30 in the atomizer 100, and is conducive to the miniaturization of the atomizer 100; on the other hand, compared with the case where only the liquid guiding surface 315 of the substrate 31 is connected with the liquid storage cotton 10, at least part of the liquid guiding surface 315 and the circumferential surface 317 in the present embodiment can be connected with the liquid storage cotton 10, which increases the contact area between the substrate 31 and the liquid storage cotton 10, reduces the possibility that the aerosol generating substrate cannot be guided to the atomization surface 311 when the liquid storage cotton 10 changes in physical properties (for example, the part of the liquid storage cotton 10 directly contacted with the heating element 33 shrinks and deforms, resulting in a gap between the heating element 33 and the liquid storage cotton 10), ensures that the atomization surface 311 has sufficient aerosol generating substrate, prevents dry burning, improves the safety performance of the atomizer 100, and ensures the smoking taste of the user.

[0047] It should be noted that, in some embodiments, the atomization surface 311 is exposed to the atomization air passage 51 in that the atomization surface 311 is located in the atomization air passage 51, or the atomization surface 311 is not located in the atomization air passage 51 but is in communication with the atomization air passage 51. In the case where the atomization surface 311 is exposed to the atomization air passage 51, the gas (e.g., ambient air) in the atomization air passage 51 can be in contact with the atomization surface 311, and the aerosol generated at the atomization surface 311 can flow into the atomization air passage 51.

[0048] The cross-sectional shape of the liquid guide passage 313 can be a regular shape such as a square, a circle, a triangle, or an irregular shape, which is not limited in the present application. The liquid guide passage 313 can guide the aerosol generating substrate inside the substrate 31 to flow to the area (i.e., the atomization surface 311) that can be heated by the heating element 30, for example, the liquid guide passage 313 can guide the aerosol generating substrate at the liquid guide surface 315 to the atomization surface 311, so that the aerosol generating substrate is heated to generate aerosol, and the generated aerosol can be guided out of the atomizer 100 from the atomization air passage 51.

[0049] In some embodiments, the substrate 31 is a porous ceramic, and the liquid guide passage 313 includes micropores in the substrate 31. The porous ceramic is usually prepared by mixing ceramic slurry with a pore former and then sintering, and the sintered ceramic body has a large number of micropores. In some embodiments of the present application, the micropores can serve as the liquid guide passage 313 for the aerosol generating substrate in the substrate 31, and the micropores are in communication with each other, thereby being able to store the aerosol generating substrate to some extent and conduct the aerosol generating substrate, thereby ensuring the normal operation of the heating element 30. It should be noted that, in some embodiments, the liquid guide passage 313 can also be other artificially formed channels. For example, the user can punch holes in the substrate 31 to form perforations by laser drilling or mechanical drilling, and the perforations can serve as the liquid guide passage 313 for the aerosol generating substrate in the substrate 31.

[0050] In addition, since the ceramic has good temperature resistance and heat insulation, when the heating element 33 is connected to the liquid storage cotton 10 through the substrate 31, the temperature of the part of the liquid storage cotton 10 in contact with the substrate 31 (e.g., the part of the liquid storage cotton 10 in contact with the liquid guide surface 315) is low, thereby effectively reducing the possibility of physical changes of the liquid storage cotton 10 under the long-term high temperature, avoiding safety and oil guiding consistency problems of the atomizer 100, and improving the user's smoking experience.

[0051] The heating element 33 is a structure in the heating body 30 for heating the aerosol generating substrate. The heating element 33 includes, but is not limited to, a heating wire, a heating film, a heating sheet, a heating wire, and a heating net, etc. The heating element 33 can be made of at least one of a metal material, a metal alloy, graphite, carbon, a conductive ceramic, tin antimony oxide, other ceramic materials, a composite material of metal materials, etc. with appropriate impedance. The appropriate metal or alloy material includes 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. For example, the heating element 33 can include a heating portion and an electrode portion (including a positive electrode portion and a negative electrode portion), the heating portion and the electrode portion are electrically connected, and the power of the power supply can be transmitted to the heating portion through the electrode portion to make the heating portion generate heat and heat the aerosol generating substrate at the atomization surface 311.

[0052] In the atomizer 100 of the embodiments of the present application, the heating element 33 is connected to the liquid storage cotton 10 through the base body 31, compared with the heating element 33 directly contacting the liquid storage cotton 10 in the related art, the physical changes of the liquid storage cotton 10 caused by long-term contact with high temperature can be effectively avoided, thereby the safety performance and the atomization performance of the atomizer 100 can be guaranteed, and the user's smoking experience can be improved.

[0053] For example, compared with the heating element 33 directly connected to the liquid storage cotton 10, the heating element 33 is connected to the liquid storage cotton 10 through the base body 31, which not only can avoid the problem that the heating element 33 is easy to cause leakage and short circuit due to the direct contact between the aerosol generating device 1000 and the heating element 33, but also can avoid the problem that the liquid storage cotton 10 is easy to burn under the high temperature of the heating element 33 due to the poor temperature resistance of the liquid storage cotton 10, thereby the safety of the atomizer 100 can be improved.

[0054] The atomizer 100 will be further described below in conjunction with the accompanying drawings.

[0055] Please refer to Figure 1 and Figure 3 , and in conjunction with Figure 2 , Figure 4 , Figure 5 or Figure 6 , in some embodiments, the atomization surface 311 is tangent to the atomization air channel 51; or, the atomization surface 311 is located in the atomization air channel 51. In this way, the heating body 30 can reduce or even avoid interfering with the flow of aerosol in the atomization air channel 51, thereby reducing the interaction and collision between fluid particles in the aerosol, to reduce the generation of turbulent flow, and then make the aerosol flow out of the atomization air channel 51 more smoothly, increase the amount of aerosol when the user smokes, and improve the user's smoking taste.

[0056] In addition, compared with the case that the heating body 30 is arranged in the atomization air channel 51, the aerosol can flow out of the atomization air channel 51 without bypassing the heating body 30, so that the flow path of the aerosol can be shortened, and the air outlet efficiency is improved.

[0057] It should be noted that in some embodiments, when the atomization surface 311 is located in the atomization air channel 51, the atomization surface 311 can be parallel to the center line of the atomization air channel 51, so that the heating body 30 can interfere with the flow of the aerosol in the atomization air channel 51 to some extent, so that the aerosol can flow out of the atomization air channel 51 more smoothly, the amount of aerosol when the user smokes is increased, and the smoking taste of the user is improved.

[0058] In some embodiments, the atomizer 100 further comprises a gas guide pipe 50, at least part of the gas guide pipe 50 is arranged in the liquid storage cotton 10, the atomization air channel 51 is formed in the gas guide pipe 50, and the gas guide pipe 50 is provided with a through hole 53 for communicating the mounting cavity 11 and the atomization air channel 51. It should be noted that in some embodiments, the material of the gas guide pipe 50 includes but is not limited to plastic, ceramic, stainless steel, etc., which is not limited in the present application. Among them, the capture ability of the gas guide pipe 50 to the aerosol is less than the capture ability of the liquid storage cotton 10 to the aerosol.

[0059] Specifically, in some embodiments, the liquid storage cotton 10 can be arranged around the gas guide pipe 50, in other words, the inner wall 13 of the liquid storage cotton 10 can be connected with the outer wall of the gas guide pipe 50, and the inner cavity of the gas guide pipe 50 is the atomization air channel 51. Among them, the gas guide pipe 50 can isolate the aerosol in the atomization air channel 51 from the liquid storage cotton 10, so as to prevent the aerosol from being captured by the liquid storage cotton 10, for example, to prevent large particle size aerosol in the aerosol from being captured by the liquid storage cotton 10 and cannot be smoked by the user, so as to ensure the amount of aerosol smoked by the user and improve the smoking taste. Among them, the through hole 53 not only facilitates the installation of the base 31 in the mounting cavity 11, but also ensures that the atomization surface 311 of the base 31 is exposed in the atomization air channel 51, so that the aerosol generated by heating the aerosol generating substrate flows into the atomization air channel 51.

[0060] In some embodiments, the air guide tube 50 and the liquid storage cotton 10 are integrated, so that the bonding strength between the air guide tube 50 and the liquid storage cotton 10 is improved, the air guide tube 50 is prevented from falling off during use of the atomizer 100, and the stability and reliability of the atomizer 100 are ensured. In this embodiment, the air guide tube 50 can be a structural member arranged on the inner wall 13 of the liquid storage cotton 10, and the atomization air channel 51 is formed in the air guide tube 50. In other embodiments, the air guide tube 50 and the liquid storage cotton 10 are separate structures, that is, the air guide tube 50 and the liquid storage cotton 10 are two different structures, so that the air guide tube 50 or the liquid storage cotton 10 can be easily disassembled and replaced. The air guide tube 50 and the liquid storage cotton 10 can be combined together by a detachable connection or a non-detachable connection. The detachable connection includes but is not limited to clamping and the like. The non-detachable connection includes but is not limited to bonding and the like.

[0061] In some embodiments, the cross-sectional dimension of the through hole 53 is substantially the same as the cross-sectional dimension of the atomization face 311. In other embodiments, the cross-sectional dimension of the through hole 53 is smaller than the cross-sectional dimension of the atomization face 311. In this way, on the one hand, the aerosol generating substrate at the edge of the atomization face 311 can be prevented from being heated and atomized, so that the consistency of the generated aerosol is ensured and the user's smoking experience is guaranteed. On the other hand, the possibility of leakage of the aerosol generating substrate is reduced, and the stability and reliability of the aerosol generating device 1000 are ensured.

[0062] Please refer to Figure 2 , Figure 4 or Figure 5 In some embodiments, the atomizer 100 further comprises an electrically conductive member 70 connected to the base 31 and having a contact end 701 in electrical contact with the heating member 33 to transmit electrical energy to the heating member 33.

[0063] Specifically, in some embodiments, one end of the electrically conductive member 70 is electrically connected to the electric control assembly 300, and the other end of the electrically conductive member 70 extends into the atomization air channel 51 and is electrically connected to the electrode part of the heating member 33. In this way, the electrical energy of the electric control assembly 300 can be transmitted to the heating member 33 through the electrically conductive member 70, so that the heating member 33 generates heat and heats the aerosol generating substrate. Moreover, through the connection of the electrically conductive member 70 and the base 31, the position of the electrically conductive member 70 can be fixed, so that the possibility of shaking of the electrically conductive member 70 during use of the atomizer 100 is reduced, the stability of the electrical contact between the contact end 701 and the heating member 33 is ensured, and the normal operation of the atomizer 100 is guaranteed.

[0064] It should be noted that in some embodiments, the contact end 701 is in hard contact with the heating element 33 to form an electrical connection between the conductive member 70 and the heating element 33. For example, the conductive member 70 can be a conductive column, and one end (i.e., the contact end 701) of the conductive column is capable of being in hard contact with the heating element 33 to achieve the electrical connection between the conductive member 70 and the heating element 33. As described above, the atomization surface 311 is tangent to the atomization air channel 51, or the atomization surface 311 is located in the atomization air channel 51, i.e., the atomization surface 311 and the atomization air channel 51 form a side atomization structure, and in this case, one end of the conductive column can be bent to extend towards the atomization surface 311 to form the contact end 701.

[0065] In some embodiments, the conductive member 70 is configured to be deformable to enable the contact end 701 to elastically abut against the heating element 33. In this way, the conductive member 70 can adapt to changes in the structure and position of the heating element 33, thereby improving the stability of the electrical connection between the contact end 701 and the heating element 33 and ensuring normal operation of the atomizer 100. For example, after the aerosol generating substrate is consumed, the volume of the liquid storage cotton 10 shrinks, and the heating element 30 sinks accordingly. In this case, the conductive member 70 can be elastically deformed to enable the contact end 701 to abut against the heating element 33, thereby improving the stability of the electrical connection between the contact end 701 and the heating element 33.

[0066] Specifically, in some embodiments, the conductive member 70 can be a spring needle having the contact end 701, and the spring needle is deformable to enable the contact end 701 to elastically abut against the heating element 33. In other embodiments, the conductive member 70 can include a conductive column and a spring, one end of the conductive column is electrically connected to the electronic control assembly 300, the other end of the conductive column is electrically connected to the spring, the spring has the contact end 701, and the spring is elastically deformable to enable the contact end 701 to elastically abut against the spring.

[0067] Further, please refer to Figure 6 In some embodiments, the conductive member 70 includes a protrusion 71, and the contact end 701 is in electrical contact with the heating element 33 through the protrusion 71. The protrusion 71 enables the conductive member 70 to adapt to changes in the structure and position of the heating element 33, thereby improving the stability of the electrical connection between the contact end 701 and the heating element 33 and ensuring normal operation of the atomizer 100.

[0068] Specifically, in some embodiments, the conductive member 70 can be a spring needle with a contact end 701, the protrusion 71 is arranged between the contact end 701 and the heating element 33, and the spring needle can be deformed to keep the contact end 701 in electrical contact with the heating element 33 through the protrusion 71. For example, when the aerosol generating substrate is not consumed, the volume of the liquid storage cotton 10 does not change, at this time, the protrusion 71 is in electrical contact with the heating element 33, and the spring needle can be deformed towards the direction away from the heating element 33 and generate an elastic force; after the aerosol generating substrate is consumed, the volume of the liquid storage cotton 10 decreases, and the heating element 30 sinks accordingly, at this time, the elastic force can make the protrusion 71 move towards the direction in which the heating element 30 sinks to keep the protrusion 71 in electrical contact with the heating element 33, thereby ensuring the stability of the electrical connection between the contact end 701 and the heating element 33.

[0069] Please refer to Figure 1 and Figure 3 , in combination with Figure 2 , Figure 4 , Figure 5 or Figure 6 , in some embodiments, the atomizer 100 further comprises a filling member 80, the filling member 80 is filled between the inner wall 13 of the mounting cavity 11 and the base 31, and the filling member 80 is used to tightly fit the base 31 and the mounting cavity 11. Specifically, the filling member 80 can be arranged between the inner wall 13 of the mounting cavity 11 and the liquid guide surface 315, and between the inner wall 13 of the mounting cavity 11 and the peripheral side surface 317.

[0070] The filling member 80 can fill the gap between the inner wall 13 of the mounting cavity 11 and the base 31, thereby on the one hand, the tight fit of the base 31 and the mounting cavity 11 can be achieved, and the stability of the assembly of the base 31 in the mounting cavity 11 can be improved; on the other hand, the possibility of a gap between the liquid storage cotton 10 and the base 31 when the aerosol generating substrate is consumed and the volume of the liquid storage cotton 10 shrinks can be reduced, and the aerosol generating substrate can be ensured to flow to the atomization surface 311 normally to be heated and atomized to generate aerosol. In addition, the arrangement of the filling member 80 can also eliminate the influence of the manufacturing tolerance of the base 31 on the assembly of the base 31, which is beneficial to improve the production efficiency of the base 31. It should be noted that, in some embodiments, the filling member 80 can be ceramic fiber cotton or the like. The filling member 80 can be used for the aerosol generating substrate in the liquid storage cotton 10 to flow to the base 31.

[0071] In some embodiments, the base 31 further comprises a liquid guiding surface 315 opposite to the atomization surface 311. In the direction from the liquid guiding surface 315 to the atomization surface 311, the atomization surface 311 protrudes from the inner wall 13 of the liquid storage cotton 10. In other words, the atomization surface 311 is closer to the center line of the atomization air passage 51 than the inner wall 13 of the liquid storage cotton 10, thereby shortening the distance between the heating element 33 and the conductive element 70 and ensuring stable electrical connection between the heating element 33 and the conductive element 70.

[0072] Specifically, in some embodiments, the size of the base 31 is greater than the size of the mounting cavity 11 in the direction from the liquid guiding surface 315 to the atomization surface 311. Thus, when the base 31 is mounted in the mounting cavity 11, part of the base 31 is located outside the mounting cavity 11, so that the atomization surface 311 protrudes from the inner wall 13 of the liquid storage cotton 10.

[0073] In other embodiments, the sum of the size of the base 31 and the size of the filler 80 between the inner wall 13 of the mounting cavity 11 and the liquid guiding surface 315 is greater than the size of the mounting cavity 11 in the direction from the liquid guiding surface 315 to the atomization surface 311. Thus, when the base 31 is mounted in the mounting cavity 11, part of the base 31 is located outside the mounting cavity 11, so that the atomization surface 311 protrudes from the inner wall 13 of the liquid storage cotton 10. It should be noted that, in this embodiment, the size of the base 31 can be smaller than, greater than, or equal to the size of the mounting cavity 11 in the direction from the liquid guiding surface 315 to the atomization surface 311.

[0074] Please refer to Figure 1 , Figure 3 and Figure 4 In some embodiments, the mounting cavity 11 comprises at least two, and the at least two mounting cavities 11 are distributed at intervals in the circumferential direction of the atomization air passage 51. The heating body 30 comprises at least two, and the at least two heating bodies 30 are respectively arranged in the corresponding mounting cavities 11. The arrangement of the at least two heating bodies 30 can improve the heating efficiency and generate more aerosol in a short time to meet the user's smoking demand. The at least two mounting cavities 11 are distributed at intervals in the circumferential direction of the atomization air passage 51, so as to prevent the heat generated by the adjacent two heating bodies 30 from affecting each other and causing the heating body 30 to overheat and be damaged, thereby ensuring the normal work of the atomizer 100 and prolonging the service life of the heating body 30.

[0075] Furthermore, in some embodiments, at least two mounting cavities 11 are evenly distributed in the circumferential direction of the atomizing airway 51, that is, the distance between at least two mounting cavities 11 is the same in the circumferential direction of the atomizing airway 51, thereby allowing the aerosol generation matrix in different regions of the liquid storage cotton 10 to be consumed evenly. For example, when two heating elements 30 are included, two mounting cavities 11 are included, and the two mounting cavities 11 are evenly distributed in the circumferential direction of the atomizing airway 51. In this case, the atomizing surfaces 311 of the bases 31 of the two heating elements 30 are positioned facing each other.

[0076] It should be noted that in some embodiments, when there are at least two heating elements 30, there is only one conductive element 70. The conductive element 70 includes a positive conductive portion and a negative conductive portion. The positive conductive portion is electrically connected to the positive electrode (i.e., the positive electrode portion described above) of the heating elements 33 of at least two heating elements 30, and the negative conductive portion is electrically connected to the negative electrode (i.e., the negative electrode portion described above) of the heating elements 33 of at least two heating elements 30. In this case, at least two heating elements 30 can operate simultaneously.

[0077] In some embodiments, when there are at least two heating elements 30, there are also at least two conductive elements 70, each electrically connected to a heating element 30 in a one-to-one correspondence. Specifically, each conductive element 70 includes a positive conductive portion and a negative conductive portion. The positive conductive portion is electrically connected to the positive electrode of the heating element 33 corresponding to the heating element 30, and the negative conductive portion is electrically connected to the negative electrode of the heating element 33 corresponding to the heating element 30. In this case, the heating elements 30 can operate individually or in combination, thereby improving the applicability of the atomizer 100 and meeting diverse user needs.

[0078] It is understood that the technical features mentioned above can be combined to form various implementations of the atomizer 100. Some possible implementations of this application are illustrated below:

[0079] Implementation Method 1

[0080] Please see Figures 1 to 3 The atomizer 100 in this embodiment includes a liquid storage cotton 10, a heating element 30, an air guide tube 50, a conductive element 70, a filler 80, and a housing 90. It should be noted that the structure and function of the liquid storage cotton 10, heating element 30, air guide tube 50, conductive element 70, filler 80, and housing 90 in this embodiment are largely the same as those in the embodiments described above, and will not be repeated here. The special feature of this embodiment is:

[0081] In the embodiment, the heating body 30 includes one, and correspondingly, the mounting cavity 11 includes one, and at least part of the base 31 of the heating body 30 is arranged in the mounting cavity 11. The gas guide pipe 50 is provided with a through hole 53, the through hole 53 is used for connecting the mounting cavity 11 and the atomization gas channel 51, that is, the atomization surface 311 can be exposed to the atomization gas channel 51 through the through hole 53, and the cross-sectional size of the through hole 53 is smaller than the cross-sectional size of the atomization surface 311. The contact end 701 of the conductive piece 70 can be in electrical contact with the heating piece 33 to transmit electrical energy to the heating piece 33. Wherein, the conductive piece 70 does not include the protruding part 71.

[0082] By using the technical solution of the embodiment, compared with the related art in which the heating piece 33 directly contacts the liquid storage cotton 10, the physical property change of the liquid storage cotton 10 caused by long-term contact with high temperature can be effectively avoided, so that the safety performance and the atomization performance of the atomizer 100 can be ensured, and the user's smoking experience can be improved. In addition, the cross-sectional size of the through hole 53 of the gas guide pipe 50 is smaller than the cross-sectional size of the atomization surface 311. In this way, on the one hand, the aerosol generating substrate at the edge of the atomization surface 311 can be prevented from being heated and atomized, so that the consistency of the generated aerosol can be ensured, and the user's smoking taste can be ensured; on the other hand, the possibility of leakage of the aerosol generating substrate can be reduced, and the stability and reliability of the aerosol generating device 1000 can be ensured.

[0083] Embodiment two

[0084] Please refer to Figure 1 , Figure 3 and Figure 4 , the atomizer 100 in the embodiment includes the liquid storage cotton 10, the heating body 30, the gas guide pipe 50, the conductive piece 70, the filling piece 80 and the shell 90. It should be noted that the structure and function of the liquid storage cotton 10, the heating body 30, the gas guide pipe 50, the conductive piece 70, the filling piece 80 and the shell 90 in the embodiment are substantially the same as those of the liquid storage cotton 10, the heating body 30, the gas guide pipe 50, the conductive piece 70, the filling piece 80 and the shell 90 in the above embodiment, and are not described here. Compared with the first embodiment, the difference between the embodiment and the first embodiment is that:

[0085] In the embodiment, the size relationship between the cross-sectional size of the through hole 53 and the cross-sectional size of the atomization surface 311 is not limited. And the heating body 30 includes at least two, and correspondingly, the mounting cavity 11 includes at least two, and the bases 31 of the at least two heating bodies 30 are respectively arranged in the corresponding mounting cavities 11. For example, the heating body 30 includes two, and correspondingly, the mounting cavity 11 includes two, and the two heating bodies 30 are respectively arranged in the two mounting cavities 11. Wherein, the two mounting cavities 11 can be uniformly distributed along the circumference of the atomization gas channel 51, and the atomization surfaces 311 of the bases 31 of the two heating bodies 30 are arranged opposite to each other.

[0086] By means of the technical solutions in the embodiment, compared with the heating element 33 directly contacting the liquid storage cotton 10 in the related art, the physical property change of the liquid storage cotton 10 caused by long-term contact with high temperature can be effectively avoided, so that the safety performance and atomization performance of the atomizer 100 can be ensured, and the user's smoking experience can be improved. In addition, the setting of the at least two heating bodies 30 can improve the heating efficiency, and more aerosol can be generated in a short time to meet the user's smoking demand. Among them, the at least two mounting cavities 11 are distributed at intervals in the circumferential direction of the atomization air channel 51, so that the heat generated by the adjacent two heating bodies 30 does not affect each other to cause overheating and damage of the heating body 30, so that the normal work of the atomizer 100 can be ensured, and the service life of the heating body 30 can be prolonged.

[0087] Embodiment three

[0088] Please refer to Figure 1 , Figure 3 and Figure 5 The atomizer 100 in the embodiment includes a liquid storage cotton 10, a heating body 30, a gas guide pipe 50, a conductive member 70, a filling member 80 and a shell 90. It should be noted that the structure and function of the liquid storage cotton 10, the heating body 30, the gas guide pipe 50, the conductive member 70, the filling member 80 and the shell 90 in the embodiment are substantially the same as those of the liquid storage cotton 10, the heating body 30, the gas guide pipe 50, the conductive member 70, the filling member 80 and the shell 90 in the above embodiments, and are not repeated here. Compared with the first embodiment, the difference of the embodiment is:

[0089] In the embodiment, the size relationship between the cross-sectional dimension of the through hole 53 and the cross-sectional dimension of the atomization face 311 is not limited. And in the direction from the liquid guide face 315 to the atomization face 311, the atomization face 311 protrudes from the inner wall 13 of the liquid storage cotton 10.

[0090] Specifically, in some embodiments, in the direction from the liquid guide face 315 to the atomization face 311, the size of the base body 31 is greater than the size of the mounting cavity 11, so that when the base body 31 is mounted in the mounting cavity 11, part of the base body 31 is located outside the mounting cavity 11, so that the atomization face 311 protrudes from the inner wall 13 of the liquid storage cotton 10.

[0091] In some embodiments, the size of the substrate 31 and the size of the filler 80 between the inner wall 13 of the mounting cavity 11 and the liquid guide surface 315 are greater than the size of the mounting cavity 11 in the direction from the liquid guide surface 315 to the atomization surface 311, so that when the substrate 31 is mounted in the mounting cavity 11, part of the substrate 31 is located outside the mounting cavity 11, so that the atomization surface 311 protrudes from the inner wall 13 of the liquid storage cotton 10. It should be noted that in this embodiment, the size of the substrate 31 in the direction from the liquid guide surface 315 to the atomization surface 311 can be greater than, less than, or equal to the size of the mounting cavity 11.

[0092] By using the technical solution in this embodiment, compared with the heating element 33 directly contacting the liquid storage cotton 10 in the related art, the physical change of the liquid storage cotton 10 caused by long-term contact with high temperature can be effectively avoided, so that the safety performance and atomization performance of the atomizer 100 can be ensured, and the user's smoking experience can be improved. In addition, in the direction from the liquid guide surface 315 to the atomization surface 311, the atomization surface 311 protrudes from the inner wall 13 of the liquid storage cotton 10. Therefore, the distance between the heating element 33 and the conductive element 70 can be shortened, and stable electrical connection between the heating element 33 and the conductive element 70 can be ensured.

[0093] Embodiment Four

[0094] Please refer to Figure 1 , Figure 3 and Figure 6 The atomizer 100 in this embodiment includes a liquid storage cotton 10, a heating element 30, an air guide pipe 50, a conductive element 70, a filler 80, and a shell 90. It should be noted that the structure and function of the liquid storage cotton 10, the heating element 30, the air guide pipe 50, the conductive element 70, the filler 80, and the shell 90 in this embodiment are substantially the same as those in the above-mentioned embodiments, and will not be repeated here. The difference between this embodiment and Embodiment One is that:

[0095] In this embodiment, the size relationship between the cross-sectional size of the through hole 53 and the cross-sectional size of the atomization surface 311 is not limited. The conductive element 70 includes a protruding portion 71, and the contact end 701 is in electrical contact with the heating element 33 through the protruding portion 71.

[0096] Specifically, in some embodiments, the conductive piece 70 can be a spring needle with a contact end 701, the protrusion 71 is arranged between the contact end 701 and the heating element 33, and the spring needle can be deformed to keep the contact end 701 in electrical contact with the heating element 33 through the protrusion 71. For example, when the aerosol generating substrate is not consumed, the volume of the liquid storage cotton 10 does not change, at this time, the protrusion 71 is in electrical contact with the heating element 33, and the spring needle can be deformed towards the direction away from the heating element 33 and generate an elastic force; after the aerosol generating substrate is consumed, the volume of the liquid storage cotton 10 decreases, and the heating element 30 sinks accordingly, at this time, the elastic force can make the protrusion 71 move towards the direction in which the heating element 30 sinks to keep the protrusion 71 in electrical contact with the heating element 33, thereby ensuring the stability of the electrical connection between the contact end 701 and the heating element 33.

[0097] By using the technical solutions in the embodiments, compared with the related art in which the heating element 33 directly contacts the liquid storage cotton 10, the physical properties of the liquid storage cotton 10 can be effectively prevented from changing due to long-term contact with high temperature, thereby ensuring the safety performance and atomization performance of the atomizer 100 and improving the user's smoking experience. In addition, the conductive piece 70 includes the protrusion 71, and the contact end 701 is in electrical contact with the heating element 33 through the protrusion 71. The protrusion 71 can make the conductive piece 70 adapt to the structure and position changes of the heating element 33, improve the stability of the electrical connection between the contact end 701 and the heating element 33, and ensure the normal operation of the atomizer 100.

[0098] It can be understood that the above embodiments are merely examples for clear illustration, and are not limitations on the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments cannot be exhaustively listed. The obvious changes or variations derived therefrom are still within the protection scope of the present disclosure.

[0099] The technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure. Meanwhile, other embodiments can be derived by using the above-described embodiments, so that the structure and logic replacement and changes can be made without departing from the scope of the present disclosure.

[0100] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An atomizer characterized by, The atomizer has an atomization air channel, and the atomizer comprises: a liquid storage cotton surrounding the atomization air channel and configured to store an aerosol generating substrate, the liquid storage cotton being provided with a mounting cavity; and a heating body comprising a base and a heating element, at least a portion of the base being arranged in the mounting cavity and comprising an atomization surface and a liquid guide passage, the atomization surface being exposed and communicating with the atomization air channel, the liquid guide passage being configured to allow the aerosol generating substrate to flow to the atomization surface, and the heating element being arranged on the atomization surface and configured to heat the aerosol generating substrate when powered.

2. The atomizer according to claim 1, wherein the atomization surface is tangent to the atomization air channel; or the atomization surface is located in the atomization air channel.

3. The atomizer of claim 1, wherein, The atomizer further comprises: a gas guide tube, at least a portion of the gas guide tube being arranged in the liquid storage cotton, the atomization air channel being formed in the gas guide tube, and the gas guide tube being provided with a through hole configured to communicate the mounting cavity and the atomization air channel.

4. The atomizer of claim 3, wherein, The through hole has a cross-sectional dimension smaller than that of the atomization surface.

5. The atomizer of claim 1, wherein, The atomizer further comprises: a conductive element connected to the base and having a contact end in electrical contact with the heating element to transmit electrical energy to the heating element.

6. The atomizer of claim 5, wherein, The conductive element is configured to be deformed so that the contact end elastically abuts against the heating element.

7. The atomizer of claim 6, wherein, The conductive element comprises a protrusion, and the contact end is in electrical contact with the heating element through the protrusion.

8. The atomizer of claim 1, wherein, The base is porous ceramic, and the liquid guide passage comprises micropores in the base; and / or The atomizer further comprises a filler arranged between an inner wall of the mounting cavity and the base, the filler being configured to tightly fit the base and the mounting cavity; and / or The base further comprises a liquid guide surface opposite to the atomization surface, and the atomization surface protrudes from an inner wall of the liquid storage cotton in a direction from the liquid guide surface to the atomization surface.

9. The nebulizer of any one of claims 1-8, wherein, The mounting cavity comprises at least two mounting cavities, and the at least two mounting cavities are spaced apart in a circumferential direction of the atomization air channel; and the heating body comprises at least two heating bodies, and the bases of the at least two heating bodies are respectively arranged in the corresponding mounting cavities.

10. An aerosol-generating device comprising: The atomizer according to any one of claims 1-9; and The electric control assembly is electrically connected with the atomizer. ​ ​

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