Heating structure, atomizing core, atomizer and aerosol generating device

Abstract

The utility model belongs to the technical field of atomization devices, and provides a heating structure, an atomization core, an atomizer and an aerosol generating device. The heating structure comprises a heating main body, an electrode part and an electrode pin; the whole heating main body is sheet-shaped; the two opposite ends of the heating body in the first direction are connected with electrode parts respectively, and at least one electrode part is provided with an extending part protruding out of the heating body in the second direction. Each electrode part is connected with an electrode pin, and in the electrode pins corresponding to the electrode parts where the extension parts are located, at least one electrode pin is connected with the corresponding extension part. The electrode part of at least one end of the heating main body extends out to form the extension part, and the corresponding electrode pin is connected with the extension part, so that the joint of the electrode pin and the extension part is far away from the heating main body, and the influence of the heating value of the joint of the electrode pin and the extension part on the aerosol generating substrate is reduced; therefore, the heating main body can well heat and atomize the aerosol generating substrate, and the atomization quality is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of atomization devices, and more particularly relates to a heating structure, an atomization core, an atomizer, and an aerosol generating device. BACKGROUND

[0002] An aerosol generating device generally comprises a power supply structure, an atomization core, etc. The power supply structure supplies power to the atomization core. The atomization core adsorbs a liquid aerosol generating substrate in the aerosol generating device and generates an aerosol by electrically heating the aerosol generating substrate through a heating sheet in the atomization core, for a user to use.

[0003] The two ends of the heating sheet are generally welded with pins to connect the power supply and thus supply power to the heating sheet. In the case of poor welding between the pins and the heating sheet, a large amount of heat is generated at the contact between the heating sheet and the pins, which burns the aerosol generating substrate and affects the atomization of the aerosol generating substrate. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiments of the present application is to provide a heating structure, an atomization core, an atomizer, and an aerosol generating device to improve the problem that, in the related art, the pins of the heating sheet are poorly welded with the heating sheet, which burns the aerosol generating substrate and affects the atomization of the aerosol generating substrate.

[0005] In a first aspect, the embodiments of the present application provide a heating structure, comprising:

[0006] a heating main body, which is in the shape of a sheet as a whole, for heating when powered to heat and atomize an aerosol generating substrate;

[0007] an electrode part, the opposite ends of the heating main body along a first direction are respectively connected with an electrode part, at least one electrode part has an extension part protruding from the heating main body along a second direction, the first direction intersects the second direction;

[0008] an electrode pin, each electrode part is respectively connected with an electrode pin, among the electrode pins corresponding to the electrode part where the extension part is located: at least one electrode pin is connected with the corresponding extension part.

[0009] In some embodiments, the electrode pin is connected with the extension part by welding.

[0010] In some embodiments, the electrode pin and the extension part are an integrally formed structure.

[0011] In some embodiments, the extension part is in the shape of a sheet, and at least the part of the electrode pin connected with the extension part is in the shape of a sheet.

[0012] In some embodiments, the electrode pin is entirely provided in the shape of a sheet.

[0013] In some embodiments, the electrode part is entirely in the shape of a sheet.

[0014] In some embodiments, the electrode part and the heating body are integrally formed.

[0015] In some embodiments, each electrode part is provided with an extension.

[0016] In some embodiments, among the electrode pins corresponding to the electrode part where the extension is located: each electrode pin is connected to the corresponding extension.

[0017] In some embodiments, the heating body is in a mesh shape; or, the heating body includes a plurality of heating wires arranged at intervals, and each heating wire has two ends respectively connected to a corresponding electrode part.

[0018] In some embodiments, the heating body includes a plurality of first bodies, and one end of the first bodies along a first direction shares one electrode part, and the other end of each first body along the first direction is connected to an electrode part.

[0019] In some embodiments, the heating body includes a plurality of second bodies arranged along a first direction, and each second body has two ends along the first direction respectively connected to an electrode part.

[0020] The electrode part, and adjacent two second bodies share one electrode part.

[0021] In a second aspect, the embodiments of the present application provide an atomizing core, comprising:

[0022] A liquid guiding structure for guiding the aerosol generating substrate;

[0023] The heating structure as described in the above embodiments, the heating body of the heating structure is arranged on the liquid guiding structure, and is used for heating and atomizing the aerosol generating substrate guided by the liquid guiding structure to form an aerosol.

[0024] In a third aspect, the embodiments of the present application provide an atomizer, comprising the atomizing core as described in the above embodiments.

[0025] In a fourth aspect, the embodiments of the present application provide an aerosol generating device, comprising the atomizer as described in the above embodiments.

[0026] In the technical solutions of the embodiments of the present application, the electrode part at least one end of the heating body is extended to form an extension, and the corresponding electrode pin is connected to the extension, so that the connection part of the electrode pin and the extension is away from the heating body, so as to reduce the influence of the heat generated at the connection part of the electrode pin and the extension on the aerosol generating substrate, so as to heat and atomize the aerosol generating substrate well, and improve the quality of atomization.

[0027] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clear and understandable, and to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following will describe the specific embodiments of the present application in detail. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0029] Figure 1 Structure schematic diagram of an aerosol generating device provided for some embodiments of the present application;

[0030] Figure 2 Structure schematic diagram of an atomizer provided for some embodiments of the present application;

[0031] Figure 3 Perspective structure schematic diagram of an atomizing core provided for some embodiments of the present application;

[0032] Figure 4 Front view structure schematic diagram of the atomizing core shown in Figure 3

[0033] Left view structure schematic diagram of the atomizing core shown in Figure 5 Figure 4 Sectional view structure schematic diagram along line A-A in

[0034] Figure 6 Right view structure schematic diagram of the atomizing core shown in Figure 3

[0035] Sectional view structure schematic diagram along line B-B in Figure 7 Figure 6 Exploded structure schematic diagram of the atomizing core shown in

[0036] Figure 8 Figure 3 Structure schematic diagram of a first heating structure provided for some embodiments of the present application;

[0037] Figure 9 Structure schematic diagram of a second heating structure provided for some embodiments of the present application;

[0038] Figure 10 Structure schematic diagram of a third heating structure provided for some embodiments of the present application;

[0039] Figure 11 Structure schematic diagram of a third heating structure provided for some embodiments of the present application; ​​​

[0040] Figure 12 A structural schematic diagram of a fourth heating structure provided for some embodiments of the present application;

[0041] Figure 13 A structural schematic diagram of a fifth heating structure provided for some embodiments of the present application;

[0042] Figure 14 A structural schematic diagram of a sixth heating structure provided for some embodiments of the present application;

[0043] Figure 15 A structural schematic diagram of a seventh heating structure provided for some embodiments of the present application.

[0044] In the drawings, the main marks are as follows:

[0045] 100, aerosol-generating device;

[0046] 10, power supply structure; 11, battery; 12, controller;

[0047] 20, atomizer; 21, liquid storage shell; 211, containing cavity; 212, liquid storage cavity; 213, first opening; 214, second opening; 22, air guide pipe; 23, mounting seat; 231, air inlet hole; 24, electrical connector; 25, mouthpiece;

[0048] 30, atomizing core; 301, atomizing cavity; 31, liquid guide structure; 311, first liquid guide layer; 312, second liquid guide layer; 32, shell; 320, containing cavity; 321, opening; 322, first annular groove; 33, support; 331, air hole; 332, through hole; 333, second annular groove; 34, conductive electrode; 35, insulating pad; 36, first sealing ring; 37, second sealing ring;

[0049] 40, heating structure; 41, heating main body; 411, first main body; 412, second main body; 413, heating wire; 42, electrode part; 421, extension part; 43, electrode pin;

[0050] X1, first direction; X2, second direction. DETAILED DESCRIPTION

[0051] In order to make the technical problems to be solved by the present application, the technical solutions and beneficial effects clearer and more apparent, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. Unless otherwise noted, the terms "including" and "comprising" are open-ended and do not exclude additional, unrecited elements or method steps.

[0053] In the description of the embodiments of the present application, the technical terms "first", "second" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0054] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined in any suitable manner with other embodiments.

[0055] If not specifically stated, all embodiments and optional embodiments of the present application can be combined to form new technical solutions.

[0056] If not specifically stated, all technical features and optional technical features of the present application can be combined to form new technical solutions.

[0057] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0058] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces). The meaning of "several" is one or more, unless otherwise explicitly specified.

[0059] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0060] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mount", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrated; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0061] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0062] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical term "adjacent" means close in position. For example, there are three components A1, A2 and B, the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1, that is, A2 is adjacent to B, and B is also adjacent to A2. For example, when there are multiple C components, the multiple C components are C1, C2, …, C N , and B is adjacent to C2, and C2 is adjacent to B.

[0063] The atomizing core is one of the main components of the atomizing device; the heating sheet is a heating element inside the atomizing core, which is used to heat the liquid material inside the atomizing core, such as the aerosol generating substrate, so as to heat and vaporize it to obtain the mist particles required for use. In order to guide the aerosol generating substrate to the heating sheet, a liquid guiding structure made of loose porous materials such as cotton, fibers or porous ceramics is often provided, and the heating sheet is placed on the liquid guiding structure so as to heat the aerosol generating substrate on the liquid guiding structure.

[0064] The two ends of the heating sheet are generally welded with pins to connect the power supply to supply power to the heating sheet to make the heating sheet generate heat. Due to the contact resistance at the contact between the heating sheet and the pin, long-term use of the heating sheet can cause the pin to loosen at the welding position with the heating sheet, resulting in poor connection, or poor welding during the manufacturing process of the heating sheet and the pin, which can greatly increase the resistance at the contact between the heating sheet and the pin. This can cause a large amount of heat to be generated at the contact between the heating sheet and the pin during use, and the temperature at the contact between the heating sheet and the pin can also be greatly increased to burn the aerosol generating substrate, thereby generating carbon deposits, which can block or damage the liquid guide structure, such as blocking the micropores in the cotton structure, fiber structure or porous ceramic structure, or burning the cotton structure at the contact between the heating sheet and the pin due to high temperature, which can affect the atomization of the aerosol generating substrate.

[0065] Based on the above considerations, in order to improve the problem that the pin of the heating sheet is poorly welded with the heating sheet in the related art, which can burn the aerosol generating substrate and affect the atomization of the aerosol generating substrate, the embodiments of the present application provide a heating structure. The electrode part of at least one end of the heating main body is extended to form an extension part, and the corresponding electrode pin is connected with the extension part, so that the connection position of the electrode pin and the extension part is away from the heating main body, thereby reducing the influence of the heat generated at the connection position of the electrode pin and the extension part on the aerosol generating substrate, so that the heating main body can heat and atomize the aerosol generating substrate well, and the quality of atomization is improved.

[0066] The heating structure of the embodiments of the present application can be applied to devices that need to generate heat, such as atomizers, aerosol generating devices, heaters, hand warmers, etc.

[0067] The atomizer of the embodiments of the present application can be used in different fields, such as medical atomization, electronic atomization, etc. The atomizer is used to store the aerosol generating substrate and heat and atomize the aerosol generating substrate to generate aerosol after being powered on.

[0068] Please refer to Figure 1 , Figure 1 The structure schematic diagram of the aerosol generating device 100 provided by some embodiments of the present application is shown. The present application provides an aerosol generating device 100, which can be used for the atomization of the aerosol generating substrate. The aerosol generating device 100 includes an atomizer 20 and a power supply structure 10, and the atomizer 20 and the power supply structure 10 are electrically connected. The atomizer 20 and the power supply structure 10 can be integrally arranged or detachably connected, and can be designed according to specific needs.

[0069] The power supply structure 10 includes a battery 11 and a controller 12. The battery 11 is used to supply power to the atomizer 20. The battery 11 and the controller 12 are electrically connected with the atomizer 20, and the controller 12 controls the battery 11 to supply power to the atomizer 20 and controls the power and the heating time of the atomizer 20 after receiving a start signal.

[0070] Referring to Figure 2 The embodiment of the present application provides an atomizer 20, which comprises an atomizing core 30. The atomizing core 30 is used to heat an aerosol generating substrate after being powered on, and generate an aerosol.

[0071] In some embodiments, referring to Figures 3 to 5 The atomizer 20 comprises a liquid storage shell 21, which has a containing cavity 211. The atomizing core 30 is installed in the containing cavity 211, and forms a liquid storage cavity 212 outside the atomizing core 30 in the containing cavity 211, so as to store the aerosol generating substrate. The atomizing core 30 can be arranged at the middle of the containing cavity 211, or arranged at one side of the containing cavity 211. One end of the liquid storage shell 21 is provided with a first opening 213. The atomizing core 30 is provided with an atomizing cavity 301. The first opening 213 of the liquid storage shell 21 is in communication with one end of the atomizing cavity 301, so that the aerosol generated by the atomizing core 30 can be discharged. The other end of the liquid storage shell 21 is provided with a second opening 214. The other end of the atomizing core 30 is sealed to the second opening 214, so that the conductive electrode 34 of the atomizing core 30 can be accommodated in the containing cavity 211, and connected to the power supply structure 10.

[0072] In some embodiments, a gas guide pipe 22 can be arranged in the containing cavity 211. One end of the gas guide pipe 22 is connected to one end of the atomizing core 30. The other end of the gas guide pipe 22 is connected to the side wall of the first opening 213, so as to guide the aerosol generated by the atomizing core 30 to be discharged.

[0073] In some embodiments, the gas guide pipe 22 and the liquid storage shell 21 can be separately manufactured, and then sealed and connected. For example, the gas guide pipe 22 and the side wall of the first opening 213 of the liquid storage shell 21 can be welded to be connected. For example, the gas guide pipe 22 can be inserted into the first opening 213, and a sealing ring, a sealing gasket, a sealing glue or the like structure is arranged between the gas guide pipe 22 and the inner wall of the first opening 213, so as to seal and connect the gas guide pipe 22 and the liquid storage shell 21.

[0074] In some embodiments, the liquid storage shell 21 and the gas guide pipe 22 can also be an integrally formed structure. For example, when the liquid storage shell 21 is manufactured, the gas guide pipe 22 is formed in the liquid storage shell 21, and the first opening 213 is formed in the inner part of the gas guide pipe 22.

[0075] In some embodiments, the atomizing core 30 can be inserted into the gas guide pipe 22, so as to be installed and supported by the gas guide pipe 22.

[0076] In some embodiments, referring to Figure 1The atomizer 20 can include a mounting seat 23 mounted to the other end of the liquid storage shell 21 to block the second opening 214 of the liquid storage shell 21. The atomizing core 30 is mounted to the mounting seat 23 and supported by the mounting seat 23. The mounting seat 23 is provided with an electric connector 24 connected to the electrically conductive pole 34 of the atomizing core 30. The electric connector 24 is used to connect the power supply structure 10 to electrically connect the atomizing core 30 and the power supply structure 10.

[0077] In some embodiments, the mounting seat 23 can also be integrated into the atomizing core 30, i.e., the atomizing core 30 can include the mounting seat 23.

[0078] In some embodiments, the electric connector 24 can be integrated into the atomizing core 30, i.e., the atomizing core 30 can include the electric connector 24.

[0079] In some embodiments, the electrically conductive pole 34 of the atomizing core 30 can be directly connected to the power supply structure 10.

[0080] In some embodiments, the electric connector 24 can be integrated into the atomizing core 30, or in the case that the electrically conductive pole 34 of the atomizing core 30 is directly connected to the power supply structure 10, the mounting seat 23 can be provided in a ring shape, i.e., the mounting seat 23 can be arranged around the other end of the atomizing core 30 to seal the gap between the other end of the atomizing core 30 and the inner wall of the second opening 214. As an example, the mounting seat 23 and the liquid storage shell 21 can be separately manufactured and then sealingly connected. For example, the mounting seat 23 and the side wall of the second opening 214 of the liquid storage shell 21 can be welded together. For another example, the mounting seat 23 can extend into the second opening 214 and a sealing ring, a sealing gasket, a sealing glue or the like structure can be arranged between the mounting seat 23 and the inner wall of the second opening 214 to sealingly connect the mounting seat 23 and the liquid storage shell 21. As an example, the liquid storage shell 21 and the mounting seat 23 can also be an integrally formed structure, i.e., when the liquid storage shell 21 is manufactured, the mounting seat 23 is formed in the liquid storage shell 21 and the second opening 214 is formed in the interior of the mounting seat 23.

[0081] In some embodiments, the atomizer 20 further includes a suction nozzle 25 mounted to the liquid storage shell 21 and connected to the first opening 213. The aerosol generated by the atomizing core 30 can be discharged from the suction nozzle 25. The suction nozzle 25 is provided to discharge the aerosol for the user to use.

[0082] Please refer to Figures 3 to 8The embodiment of the present application provides a kind of atomizing core 30, including heating structure 40 and liquid guide structure 31.Liquid guide structure 31 can store and flow guide aerosol generating substrate in liquid storage cavity 212.Liquid guide structure 31 can be cotton layer, fiber layer or porous ceramic etc.Loose porous material.Liquid guide structure 31 can be set as hollow tubular shape with both ends open, as an example, liquid guide structure 31 can be set as cylindrical, prism, cuboid etc.Of course, liquid guide structure 31 can also be set as block shape.Liquid guide structure 31 is hollow tubular shape, heating structure 40 is arranged in the inside of liquid guide structure 31.Liquid guide structure 31 is block shape, heating structure 40 can be arranged on one side of liquid guide structure 31.

[0083] In some embodiments, when the shape of liquid guide structure 31 is hollow tubular, the inside of liquid guide structure 31 forms atomization cavity 301.In some embodiments, when the shape of liquid guide structure 31 is block, the side of liquid guide structure 31 where heating structure 40 is arranged can be provided with a cavity to form atomization cavity 301.

[0084] Heating structure 40 can heat after power on, and heating aerosol generating substrate guided by liquid guide structure 31, so that aerosol generating substrate is atomized to form aerosol.The shape of heating structure 40 is similar to the surface of liquid guide structure 31 used to install heating structure 40, so that heating structure 40 can be arranged on the corresponding surface of liquid guide structure 31.As an example, liquid guide structure 31 is cylindrical, and heating structure 40 can be a cylindrical body with notches formed by bending sheet body, wherein the notch refers to the two ends of heating structure 40 close after bending, but not forming a closed loop, i.e.the two ends of heating structure 40 are spaced apart, and a notch is formed between the two ends of heating structure 40, so that the two ends of heating structure 40 can be used as two electrodes to connect external lead respectively.Heating structure 40 is electrically connected with battery 11 and controller 12 of power supply structure 10, so that battery 11 can provide power for heating structure 40, and controller 12 can control the heating time and heating power of heating structure 40.As an example, liquid guide structure 31 is block, and heating structure 40 can be sheet body to be attached to one side of liquid guide structure 31.

[0085] In some embodiments, when gas guide pipe 22 is arranged in liquid storage shell 21, liquid guide structure 31 and heating structure 40 of atomizing core 30 can also be arranged in gas guide pipe 22, and connecting hole (not shown in the figure) is arranged in gas guide pipe 22, so that aerosol generating substrate in liquid storage cavity 212 can enter liquid guide structure 31.

[0086] In some embodiments, please refer to Figures 2 to 8The atomization core 30 further comprises a bracket 33 and a shell 32, the bracket 33 cooperates with the shell 32 to fix and support the liquid guide structure 31. The shell 32 is in the shape of a hollow tube with both ends open, the shell 32 is arranged at least partially around the liquid guide structure 31, and the shell 32 is sleeved on one end of the bracket 33. The other end of the bracket 33 is used to connect the mounting seat 23 or the liquid storage shell 21 of the atomizer 20, so as to fix the atomization core 30 in the liquid storage shell 21 of the atomizer 20. The bracket 33 is provided with a ventilation hole 331, and the mounting seat 23 or the liquid storage shell 21 of the atomizer 20 is provided with an air inlet hole 231, so as to communicate with the ventilation hole 331 on the bracket 33, so that the external atmosphere can enter the atomization cavity 301, so as to mix with the aerosol generating substrate heated and vaporized by the heating structure 40 to form an aerosol. The side wall of the shell 32 is provided with an opening 321, which communicates with the liquid storage cavity 212, so that the aerosol generating substrate in the liquid storage cavity 212 can flow into the liquid guide structure 31 through the opening 321.

[0087] In some embodiments, the shape of the shell 32 can be cylindrical. Of course, in some embodiments, the shape of the shell 32 can also be prismatic, rectangular, cubic, irregular, etc.

[0088] The opening 321 is a hole provided on the side wall of the shell 32, and the number of the opening 321 can be multiple. In this embodiment, the number of the opening 321 is four, and the four openings 321 are arranged at intervals along the circumference of the shell 32. In some embodiments, the number of the opening 321 can also be one, two, three, five, etc.

[0089] The shell 32 forms a receiving cavity 320, and the liquid guide structure 31 is arranged in the receiving cavity 320 to protect the liquid guide structure 31 by the shell 32.

[0090] The shell 32 and the liquid guide structure 31 are arranged on one end of the bracket 33 to support the liquid guide structure 31 and the shell 32 by the bracket 33.

[0091] In some embodiments, the liquid guide structure 31 is arranged on the inner surface of the receiving cavity 320, and at least part of the side wall of the liquid guide structure 31 covers the opening 321, so that the aerosol generating substrate in the liquid storage cavity 212 can flow into the liquid guide structure 31 through the opening 321.

[0092] In some embodiments, the liquid guide structure 31 can be a single-layer structure for easy processing.

[0093] In some embodiments, the liquid guide structure 31 can be a two-layer structure, such as the liquid guide structure 31 including a first liquid guide layer 311 and a second liquid guide layer 312, the first liquid guide layer 311 being disposed between the shell 32 and the support 33, and the second liquid guide layer 312 being disposed on the inner surface of the support 33. The inside of the second liquid guide layer 312 is formed with an atomization cavity 301, and the heating structure 40 is disposed on the cavity wall of the atomization cavity 301. The first liquid guide layer 311 can be used for air exchange and control of the negative pressure of the liquid storage cavity 212, and the second liquid guide layer 312 can be used for guiding and storing the aerosol generating substrate. The first liquid guide layer 311 can be a layer of loose porous material such as a cotton layer, a fiber layer, or a porous ceramic layer. The second liquid guide layer 312 can be a layer of loose porous material such as a cotton layer, a fiber layer, or a porous ceramic layer. The materials of the first liquid guide layer 311 and the second liquid guide layer 312 can be the same or different.

[0094] In some embodiments, the liquid guide structure 31 can also be a multi-layer structure, such as a three-layer structure, a four-layer structure, etc.

[0095] In some embodiments, the end of the support 33 away from the shell 32 is provided with a through opening 332, and the through opening 332 is provided with a conductive electrode 34, and the heating structure 40 is connected to the conductive electrode 34 to connect the power supply structure 10.

[0096] In some embodiments, an insulating pad 35 is further provided between the inner surface of the through opening 332 and the conductive electrode 34, which not only plays a good sealing role, but also provides good insulation and isolation for the conductive electrode 34.

[0097] In some embodiments, the end of the shell 32 away from the support 33 is provided with at least one first sealing ring 36 to abut against the inner surface of the first opening 213 of the liquid storage shell 21 or the inner surface of the air guide pipe 22 of the atomizer 20 to achieve good sealing between the shell 32 and the corresponding inner surface.

[0098] In some embodiments, the shell 32 is provided with a first ring groove 322 to position and accommodate the corresponding first sealing ring 36.

[0099] In some embodiments, the end of the support 33 supporting the shell 32 is provided with at least one second sealing ring 37. In the case where the support 33 of the atomizing core 30 is installed in the second opening 214 of the liquid storage shell 21, the second sealing ring 37 can abut against the inner surface of the second opening 214 of the liquid storage shell 21 to achieve sealing between the support 33 and the inner surface of the second opening 214. In the case where the support 33 of the atomizing core 30 is installed on the mounting seat 23 of the atomizer 20, the second sealing ring 37 can abut against the inner surface of the mounting seat 23 to achieve sealing connection between the support 33 and the mounting seat 23.

[0100] In some embodiments, the support 33 is provided with a second annular groove 333 for positioning and accommodating a corresponding second sealing ring 37.

[0101] Please refer to Figures 9 to 15 According to some embodiments of the present application, a heating structure 40 is provided, which includes a heating body 41, an electrode part 42 and an electrode pin 43. The heating body 41 is configured to generate heat when powered on, so as to heat and atomize an aerosol generating substrate. The heating body 41 is in a sheet shape as a whole. The heating body 41 is connected with the electrode part 42 at opposite ends thereof along a first direction X1, and at least one electrode part 42 has an extension part 421 protruding from the heating body 41 along a second direction X2, the first direction X1 intersecting the second direction X2. Each electrode part 42 is connected with the electrode pin 43, and among the electrode pins 43 corresponding to the electrode parts 42 with the extension part 421, at least one electrode pin 43 is connected with the corresponding extension part 421.

[0102] The heating body 41 in a sheet shape as a whole means that the heating body 41 is in a sheet structure as a whole. The sheet structure means a flat structure with a thickness much smaller than a length and a width. The heating body 41 can be made of metal, conductive carbon fiber or the like.

[0103] The electrode part 42 means a conductive part at the two ends of the heating body 41 for connecting the power supply structure 10, so as to supply power to the heating body 41, so that the current flows through the heating body 41, and the heating body 41 generates heat. The electrode part 42 can also serve to support the heating body 41. The electrode part 42 can be made of metal, conductive carbon fiber or the like.

[0104] In some embodiments, the cross-sectional area of the electrode part 42 is generally larger than that of the local part of the heating part of the heating body 41, so that the electrode part 42 has better current-carrying capacity, and the heat generated when the current passes through is relatively small.

[0105] The heating body 41 is in a sheet shape, and as a whole can have a length direction and a width direction. The first direction X1 can be the length direction of the heating body 41, or the width direction of the heating body 41. Of course, the first direction X1 can also be inclined to the length direction of the heating body 41. The first direction X1 can also be inclined to the width direction of the heating body 41. Generally, the direction from one electrode part 42 to the other electrode part 42 through the heating body 41 of the adjacent two electrode parts 42 on the heating body 41 is the first direction X1. The second direction X2 intersects the first direction X1, such as the second direction X2 can be perpendicular to the first direction X1, of course, the second direction X2 can also be arranged at an angle to the first direction X1.

[0106] The heating body 41 is connected with the electrode part 42 at opposite ends along the first direction X1. In the case of being electrified, the current enters the heating body 41 from one electrode part 42 and flows out from the other electrode part 42.

[0107] The extension part 421 refers to the part of the electrode part 42 extending out of the heating body 41.

[0108] At least one electrode part 42 has the extension part 421 protruding out of the heating body 41 along the second direction X2, which means that one or more electrode parts 42 are provided with the extension part 421. In the case that the heating structure 40 includes two electrode parts 42, one of the electrode parts 42 can be provided with the extension part 421, or both of the electrode parts 42 can be provided with the extension part 421. In the case that the heating structure 40 includes three or more electrode parts 42, one or several of the electrode parts 42 can be provided with the extension part 421, or each of the electrode parts 42 can be provided with the extension part 421.

[0109] Each electrode part 42 is connected with the electrode pin 43, which is a pin structure used to connect with the conductive electrode 34 or the electrical connector 24 for conducting electricity. Each electrode part 42 is connected with the electrode pin 43 to connect with the conductive electrode 34 or the electrical connector 24, which facilitates the electrical connection of the electrode part 42.

[0110] The electrode pin 43 corresponding to the electrode part 42 where the extension part 421 is located refers to the electrode pin 43 connected with the electrode part 42 provided with the extension part 421.

[0111] Among the electrode pins 43 corresponding to the electrode parts 42 where the extension parts 421 are located: at least one electrode pin 43 is connected with the corresponding extension part 421. That is, when only one electrode part 42 is provided with the extension part 421, the electrode pin 43 corresponding to the electrode part 42 where the extension part 421 is located is connected with the extension part 421. When multiple electrode parts 42 are provided with the extension parts 421, one or several electrode pins 43 corresponding to the electrode parts 42 where the extension parts 421 are located can be connected with the extension parts 421, or each extension part 421 can be connected with the corresponding electrode pin 43.

[0112] Connecting the extension part 421 with the electrode pin 43 can make the connection area of the electrode pin 43 and the electrode part 42 away from the heating body 41, and thus in use, the connection area of the electrode pin 43 and the electrode part 42 can be away from the liquid guide structure 31, so as to reduce the influence of the connection area of the electrode pin 43 and the electrode part 42 on the liquid guide structure 31 and the aerosol generating substrate thereon, so that the heating body 41 can heat and atomize the aerosol generating substrate well.

[0113] In the technical scheme of the embodiment of the present application, the electrode portion 42 at at least one end of the heating main body 41 is extended to form an extension portion 421, the corresponding electrode pin 43 is connected with the extension portion 421, so that the connection position of the electrode pin 43 and the extension portion 421 is away from the heating main body 41, the influence of the heat generated at the connection position of the electrode pin 43 and the extension portion 421 on the aerosol generating substrate is reduced, the heating and atomization of the aerosol generating substrate by the heating main body 41 is good, and the quality of atomization is improved.

[0114] In some embodiments, referring to Figure 9 , the electrode pin 43 is connected with the extension portion 421 by welding. That is, the electrode pin 43 and the electrode portion 42 are respectively manufactured, and then the electrode pin 43 and the electrode portion 42 are connected by welding. The electrode pin 43 and the extension portion 421 can be connected by welding in a welding mode such as resistance welding, laser welding, and brazing, so that the electrode pin 43 and the extension portion 421 are stably connected, and the contact resistance of the electrode pin 43 and the extension portion 421 is reduced.

[0115] In some embodiments, referring to Figure 10 , the electrode pin 43 and the extension portion 421 are an integral structure. That is, the electrode pin 43 and the extension portion 421 are an integral structure, that is, the electrode portion 42 is manufactured to be longer, and the part away from the heating main body 41 is used as the electrode pin 43, so as to facilitate manufacturing and make the connection of the electrode pin 43 and the extension portion 421 stable.

[0116] In some embodiments, referring to Figure 9 and Figure 10 , the extension portion 421 is in a sheet shape, and at least the part of the electrode pin 43 connected with the extension portion 421 is in a sheet shape.

[0117] At least the part of the electrode pin 43 connected with the extension portion 421 is in a sheet shape, which means that the electrode pin 43 can be entirely provided in a sheet shape to facilitate manufacturing, or a part of the electrode pin 43 corresponding to the extension portion 421 is provided in a sheet shape.

[0118] The extension portion 421 is provided in a sheet shape, and at least the part of the electrode pin 43 connected with the extension portion 421 is provided in a sheet shape. In the case of welding the extension portion 421 and the electrode pin 43, the contact area of the extension portion 421 and the electrode pin 43 can be increased to facilitate the connection of the electrode pin 43 and the extension portion 421 and reduce the contact resistance.

[0119] In some embodiments, referring to Figure 9 and Figure 10 , the electrode pin 43 is entirely provided in a sheet shape, which facilitates manufacturing.

[0120] In some embodiments, part of the electrode pin 43 can also be provided in a sheet shape.

[0121] In some embodiments, the electrode portion 42 is in a sheet shape as a whole, so as to facilitate the manufacturing process and to facilitate the electrode portion 42 to support the heating body 41. In addition, the thickness of the electrode portion 42 can be reduced, and thus the thickness of the heating structure 40 as a whole can be reduced.

[0122] In some embodiments, referring to Figures 9 to 15 , the electrode portion 42 and the heating body 41 are in an integrated structure, so as to facilitate the connection between the electrode portion 42 and the heating body 41, and to facilitate the manufacturing process, for example, the electrode portion 42 and the heating body 41 can be formed by stamping a metal sheet.

[0123] In some embodiments, the heating body 41 can be wound on the electrode portion 42, so as to facilitate the connection between the heating body 41 and the electrode portion 42.

[0124] In some embodiments, each electrode portion 42 is provided with an extension portion 421, so as to facilitate the manufacturing process of the electrode portion 42, and the extension portion 421 can facilitate the connection between each electrode portion 42 and the electrode pin 43.

[0125] In some embodiments, the electrode pin 43 corresponding to the electrode portion 42 where the extension portion 421 is located: each electrode pin 43 is connected to the corresponding extension portion 421, so that the connection between each electrode portion 42 and the electrode pin 43 is away from the heat-conducting structure, so as to reduce the influence on the aerosol generating substrate and improve the quality of atomization.

[0126] In some embodiments, referring to Figures 9 to 13 , the heating body 41 is in a mesh shape. That is, the heating body 41 is in a sheet shape, and a plurality of opening structures are provided on the heating body 41, so as to form a mesh structure. When the mesh-shaped heating body 41 is used, the overall heating is more uniform after being powered on, and the mesh space of the heating body 41 can be used for the aerosol generating substrate to pass through, so as to be atomized.

[0127] The mesh-shaped heating body 41 can be formed by stamping a metal sheet, or can be made by weaving conductive wires or conductive lines.

[0128] In some embodiments, referring to Figure 14 and Figure 15 , the heating body 41 includes a plurality of spaced-apart heating wires 413, and both ends of each heating wire 413 are connected to the corresponding electrode portion 42. The plurality of heating wires 413 are used to form the heating body 41, and the structure is simple.

[0129] In some embodiments, referring to Figure 14 and Figure 15In some embodiments, the heating wire 413 can be arranged in a wavy shape to increase the structural length of the heating wire 413. In some embodiments, the heating wire 413 can also be arranged in a straight line segment shape.

[0130] In some embodiments, the electrode portion 42 is in a sheet shape as a whole, the heating body 41 is integrally formed with the electrode portion 42, and the electrode pin 43 is arranged in a sheet shape. In this case, any one side of the heating body 41 can be attached to the liquid guide structure 31, so that the assembly is facilitated, and the front and back sides do not need to be distinguished, thereby improving the assembly efficiency.

[0131] In some embodiments, referring to Figure 11 and Figure 13 , the heating body 41 includes a plurality of first bodies 411, and the plurality of first bodies 411 share one electrode portion 42 at one end along the first direction X1, and each first body 411 is connected with an electrode portion 42 at the other end along the first direction X1. This structure separately controls the voltage supplied to the two ends of each first body 411, thereby adjusting the heat generation of each first body 411 and the total heat generation. In addition, this structure can also control the power-on operation of different first bodies 411 to facilitate the control of the heat generation. The plurality refers to two or more.

[0132] In some embodiments, referring to Figure 12 and Figure 13 , the heating body 41 includes a plurality of second bodies 412 arranged along the first direction X1, each second body 412 is connected with an electrode portion 42 at both ends along the first direction X1, and adjacent two second bodies 412 share one electrode portion 42. This structure separately controls the voltage supplied to the two ends of each second body 412, thereby adjusting the heat generation of each second body 412 and the total heat generation, and realizing the control of the heat generation of different sections of the heating body 41 to facilitate the control of the heat generation.

[0133] In some embodiments, referring to Figure 13 , a plurality of second bodies 412 can be connected in series to form a first body 411, that is, at least one first body 411 includes a plurality of second bodies 412 arranged along the first direction X1, each second body 412 is connected with an electrode portion 42 at both ends along the first direction X1, and adjacent two second bodies 412 share one electrode portion 42.

[0134] According to some embodiments of the present application, the present application also provides an atomization core 30, comprising:

[0135] a liquid guide structure 31 for guiding the aerosol generating substrate;

[0136] The heating structure 40 as described in the above embodiments, the heating body 41 of the heating structure 40 is arranged on the liquid guide structure 31, and is used to heat and atomize the aerosol generating substrate guided by the liquid guide structure 31 to form an aerosol.

[0137] According to some embodiments of the present application, the present application also provides an atomizer 20 comprising the atomizing core 30 as described in the above embodiments.

[0138] According to some embodiments of the present application, the present application also provides an aerosol generating device 100 comprising the atomizer 20 as described in the above embodiments.

[0139] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A heat generating structure, characterized by, The heating body is in the form of a sheet as a whole and is configured to generate heat when energized to heat and atomize an aerosol generating substrate. The electrode portions are connected with the electrode pins respectively. The electrode pins are connected with the extension portions. The electrode pins are integrally formed with the extension portions.

2. The heat generating structure of claim 1, wherein The extension portions are in the form of a sheet.

3. The heat generating structure of claim 1, wherein The electrode pins are in the form of a sheet as a whole.

4. The heat generating structure according to any one of claims 1 to 3, wherein The electrode portions are in the form of a sheet as a whole.

5. The heat generating structure of claim 4, wherein, The electrode portions are integrally formed with the heating body.

6. The heat generating structure of claim 4, wherein, The electrode portions are provided with the extension portions.

7. The heat generating structure according to any one of claims 1 to 3, wherein The electrode pins are connected with the extension portions.

8. The heat generating structure of any one of claims 1-3, wherein, The heating body is in the form of a mesh; or the heating body includes a plurality of heating wires arranged at intervals, and two ends of each of the heating wires are connected with the corresponding electrode portions.

9. The heat generating structure of any one of claims 1-3, wherein, The heating body includes a plurality of first bodies, and one of the electrode portions is shared by one end of the first bodies along the first direction.

10. The heat generating structure of any one of claims 1-3, wherein, The heating body includes a plurality of second bodies arranged along the first direction, and two ends of each of the second bodies are connected with the electrode portions, and adjacent two of the second bodies share one of the electrode portions.

11. The heat generating structure of any one of claims 1-3, wherein, The liquid guiding structure is configured to guide the aerosol generating substrate.

12. The heat generating structure of any one of claims 1-3, wherein, The heating structure according to any one of claims 1-12 is arranged on the liquid guiding structure and is configured to heat and atomize the aerosol generating substrate guided by the liquid guiding structure to form an aerosol.

13. An atomizing core characterized by, The atomizer according to claim 14. ​ ​ 14. An atomiser characterised in that, ​ 15. An aerosol-generating device comprising: ​

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