Atomizing core, atomizer and electronic atomization device

Abstract

The application discloses an atomizing core, an atomizer and an electronic atomization device. The atomizing core comprises a liquid guide and a heating body. The liquid guide has a liquid suction surface and an atomization surface, and is used for guiding an aerosol generating substrate from the liquid suction surface to the atomization surface. The heating body is arranged on the atomization surface, and is used for heating and atomizing the aerosol generating substrate to generate an aerosol. The heating body comprises a first heating circuit and a second heating circuit which are parallel to each other and work independently. By arranging at least two independently working heating circuits, the service life of the heating body is greatly improved. The first heating circuit and the second heating circuit have a common intermediate heating section, so that the problem of uneven local heating of the heating body is solved. Meanwhile, the application forms different heating modes by switching the two heating circuits, so as to provide different atomization amounts and improve the satisfaction of users during smoking.

Description

TECHNICAL FIELD

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

[0002] In the related art, an electronic atomization device mainly consists of an atomizer and a power assembly. The atomization core in the atomizer is a core component, and a heating body is arranged in the atomization core for heating an aerosol generating substrate to generate an aerosol. However, the heating body in the working state causes uneven heating, which aggravates the formation of smoke dirt, reduces the amount of mist generated by the atomizer, greatly reduces the service life of the atomization core, and seriously affects the user experience. SUMMARY

[0003] Therefore, the present application provides an atomization core, an atomizer and an electronic atomization device to solve the problems of small amount of mist generated and reduced service life of the atomization core caused by uneven heating in the prior art.

[0004] To solve the above technical problems, the first technical solution provided by the present application is to provide an atomization core, which comprises a liquid guide body and a heating body. The liquid guide body has a liquid absorption surface and an atomization surface, and is used to guide an aerosol generating substrate from the liquid absorption surface to the atomization surface. The heating body is arranged at the atomization surface and is used to heat and atomize the aerosol generating substrate to generate an aerosol. The heating body comprises a first heating circuit and a second heating circuit which are connected in parallel and work independently, and the first heating circuit and the second heating circuit have a common intermediate heating section.

[0005] Optionally, the common intermediate heating section is located at the center position of the atomization surface.

[0006] Optionally, the heating body comprises a plurality of heating sections, which are a first heating section, a second heating section, a third heating section, a fourth heating section and the common intermediate heating section. The first ends of the first heating section and the second heating section are electrically connected to the first end of the common intermediate heating section, and the first ends of the third heating section and the fourth heating section are electrically connected to the second end of the common intermediate heating section.

[0007] Optionally, the length of the common intermediate heating section along a first direction is greater than the width of the common intermediate heating section along a second direction, and the first direction is perpendicular to the second direction. The first heating section and the second heating section are respectively located on opposite sides of the common intermediate heating section along the second direction and extend along the second direction. The third heating section and the fourth heating section are respectively located on opposite sides of the common intermediate heating section along the second direction and extend along the second direction.

[0008] Optionally, the first heating section and the third heating section are located on the same side of the common intermediate heating section and are both convexly arc-shaped away from each other; the second heating section and the fourth heating section are located on the same side of the common intermediate heating section and are both convexly arc-shaped away from each other.

[0009] Optionally, the width of the first heating section, the width of the second heating section, the width of the third heating section, and the width of the fourth heating section are all less than the width of the common intermediate heating section.

[0010] Optionally, the first heating section and the third heating section are arranged in axial symmetry, and / or the second heating section and the fourth heating section are arranged in axial symmetry, and / or the first heating section and the second heating section are arranged in axial symmetry, and / or the third heating section and the fourth heating section are arranged in axial symmetry.

[0011] Optionally, the first heating section and the third heating section are arranged in central symmetry, and / or the second heating section and the fourth heating section are arranged in central symmetry; the width of the first heating section is less than the width of the second heating section.

[0012] Optionally, the heating body further comprises a plurality of electrodes, respectively a first electrode, a second electrode, a third electrode, and a fourth electrode; the first electrode, the second electrode, the third electrode, and the fourth electrode are respectively and one-to-one electrically connected with the second end of the first heating section, the second heating section, the third heating section, and the fourth heating section; wherein the first electrode, the first heating section, the common intermediate heating section, the fourth heating section, and the fourth electrode constitute the first heating circuit; the third electrode, the third heating section, the common intermediate heating section, the second heating section, and the second electrode constitute the second heating circuit.

[0013] Optionally, the heating body further comprises a plurality of electrodes, respectively a first electrode, a second electrode, a third electrode; the first electrode and the third electrode are respectively and one-to-one electrically connected with the second end of the first heating section and the third heating section; the second electrode is electrically connected with the second end of the second heating section and the fourth heating section; wherein the first electrode, the first heating section, the common intermediate heating section, the second heating section, the fourth heating section, and the second electrode constitute the first heating circuit; the third electrode, the third heating section, the common intermediate heating section, the second heating section, the fourth heating section, and the second electrode constitute the second heating circuit.

[0014] Optionally, the heating body further comprises a plurality of electrodes, respectively a first electrode, a second electrode, a third electrode and a fourth electrode; the first electrode, the second electrode, the third electrode and the fourth electrode are respectively electrically connected with the second end of the first heating section, the second heating section, the third heating section and the fourth heating section one by one; wherein a group of the electrodes among the first electrode, the second electrode, the third electrode and the fourth electrode and the heating sections electrically connected with the group of the electrodes form the first heating circuit, and another group of the electrodes and the heating sections electrically connected with the another group of the electrodes form the second heating circuit.

[0015] To solve the above technical problems, the second technical solution provided by the present application is to provide an atomizer, comprising a shell and an atomizing core. The shell has a receiving cavity; the atomizing core is arranged in the receiving cavity and cooperates with the shell to form a liquid storage cavity; the atomizing core is used to heat and atomize an aerosol generating substrate from the liquid storage cavity to form an aerosol when powered on; wherein the atomizing core is any one of the above-mentioned atomizing cores.

[0016] To solve the above technical problems, the third technical solution provided by the present application is to provide an electronic atomization device, comprising an atomizer and a power supply component; wherein the atomizer is any one of the above-mentioned atomizers; the power supply component is electrically connected with the atomizer and is used to supply power to the atomizer.

[0017] The beneficial effects of the present application: Unlike the prior art, the atomizing core of the present application comprises a liquid guide and a heating body. The liquid guide has a liquid absorbing surface and an atomizing surface, and is used to guide the aerosol generating substrate from the liquid absorbing surface to the atomizing surface. The heating body is arranged at the atomizing surface and is used to heat and atomize the aerosol generating substrate to generate an aerosol. The heating body comprises a first heating circuit and a second heating circuit which are connected in parallel and work independently. By arranging at least two independently working heating circuits, the service life of the heating body is greatly improved. Moreover, the first heating circuit and the second heating circuit have a common intermediate heating section, which solves the problem of uneven local heating of the heating body. At the same time, the present application forms different heating modes by switching between the two heating circuits to provide different atomization amounts and improve the user's satisfaction with smoking. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. 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 creative labor.

[0019] Figure 1is a structural schematic diagram of an electronic atomization device provided by the present application;

[0020] Figure 2 is a structural schematic diagram of an atomizer provided by the present application;

[0021] Figure 3 is a structural schematic diagram of an atomizing core in an embodiment provided by the present application;

[0022] Figure 4 is Figure 3 is a bottom structural schematic diagram of an atomizing core provided by the present application;

[0023] Figure 5 is a first structural schematic diagram of a heating element provided by a first embodiment of the present application;

[0024] Figure 6 is a second structural schematic diagram of a heating element provided by the first embodiment of the present application;

[0025] Figure 7 is a third structural schematic diagram of a heating element provided by the first embodiment of the present application;

[0026] Figure 8 is a fourth structural schematic diagram of a heating element provided by the first embodiment of the present application;

[0027] Figure 9 is a fifth structural schematic diagram of a heating element provided by the first embodiment of the present application;

[0028] Figure 10 is a structural schematic diagram of a heating element provided by a second embodiment of the present application;

[0029] Figure 11 is a structural schematic diagram of a heating element provided by a third embodiment of the present application;

[0030] Figure 12 is a structural schematic diagram of a heating element provided by a fourth embodiment of the present application;

[0031] Figure 13 is a comparison diagram of optical photos of a prior S-shaped heating film and the heating element provided by the first to third embodiments of the present application after 250 puffs. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0033] The terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eight" are used only for the purpose of description, and are not to be interpreted as indicating or implying relative importance or a specific number of the technical features indicated. Thus, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eight" can explicitly or implicitly include at least one of the features. All directional indications, such as upper, lower, left, right, front, back, rear, etc., are intended to facilitate the understanding of relative positions between components shown in certain orientations (e.g., as shown in the drawings) and are not to be construed as limiting. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a list of steps or units is not limited to the listed steps or units, but can optionally include additional steps or units not listed, or can optionally include other steps or units inherent to such processes, methods, products or devices.

[0034] 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 appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein are combinable with each other.

[0035] The existing electronic atomization device, wherein the heating element layout basically adopts a single line way of S film, the present inventors find that the basic failure mode in the application process of aerosol generating substrate is that the local overburning of the heating film produces cracks, and the abnormal phenomena of small atomization amount, burnt smell and even no mist are produced, resulting in short service life of the electronic atomization device. However, the ceramic liquid supply part of the heating body is almost normal. At the same time, the single line heating mode cannot meet the needs of users for different atomization amounts.

[0036] In addition, the prior art also has a way of forming a heating body by parallel connection of multiple heating lines to improve the service life of the heating body. However, the multiple heating lines in the prior art are independently arranged and independently operated, and the heating line layout is parallel extension. For example, when the first heating line is working, the second heating line is not working, so the heating uniformity of the atomization surface is poor, and the local high temperature area aggravates the formation of soot, greatly reducing the service life of the atomization core.

[0037] In order to solve the above problems, the present application provides a new atomization core, an atomizer and an electronic atomization device.

[0038] Please refer to Figure 1 , Figure 1 is a structural schematic diagram of an electronic atomization device provided by the present application.

[0039] The electronic atomization device comprises an atomizer 1 and a power supply assembly 2 connected with the atomizer 1 for supplying power to the atomizer 1. The electronic atomization device can be used for atomization of liquid substrate. The atomizer 1 is used for storing liquid aerosol generating substrate and atomizing the aerosol generating substrate to form aerosol available for a user to smoke. The liquid aerosol generating substrate can be liquid substrate such as medicinal liquid, plant leaf liquid, etc. The atomizer 1 can be used in different fields such as medical treatment, beauty, leisure smoking, etc. The power supply assembly 2 comprises a battery (not shown in the figure), an airflow sensor (not shown in the figure), a controller (not shown in the figure), etc. The battery is used for supplying power to the atomizer 1 and controlling the power and heating time of the heating element 20 so that the atomizer 1 can atomize the aerosol generating substrate to form aerosol. The airflow sensor is used for detecting the airflow or air pressure change in the electronic atomization device, and the controller starts the electronic atomization device according to the airflow or air pressure change detected by the airflow sensor. The atomizer 1 and the power supply assembly 2 can be integrally arranged or detachably connected, which is designed according to specific needs.

[0040] Please refer to Figure 2 , Figure 2 is a structural schematic diagram of the atomizer provided in the present application.

[0041] The atomizer 1 comprises a shell 10 and an atomizing element 20, and the shell 10 has a receiving cavity 11. The atomizing element 20 and the shell 10 can be integrally arranged or detachably connected. In the present embodiment, the atomizing element 20 and the shell 10 are detachably connected, and the atomizing element 20 is directly connected with the shell 10, so that the atomizing element 20 and the shell 10 can be detachably connected without introducing an additional conduit, reducing the volume of the atomizer 1 and making it more convenient to use. It can be understood that the atomizer 1 of the present application is a portable atomizer. The atomizing element 20 is arranged in the receiving cavity 11 and cooperates with the shell 10 to form a liquid storage cavity 12 for storing aerosol generating substrate. The atomizing element 20 can be used in different fields such as medicine atomization, plant liquid atomization, etc., and is used for heating and atomizing the aerosol generating substrate from the liquid storage cavity 12 to form aerosol when powered. The atomizer 1 can further comprise a mounting seat (not labeled in the figure) for mounting the atomizing element 20.

[0042] Specifically, the outer wall surface of the atomization core 20 is provided with a protrusion (not shown in the figure), the outer wall surface of the shell 10 is provided with a sliding groove (not shown in the figure), and the sliding groove is provided with a limiting block (not shown in the figure); the protrusion on the atomization core 20 is inserted into the sliding groove on the shell 10, and the atomization core 20 or the shell 10 is rotated, so that the protrusion is limited by the limiting block in the sliding groove, the fixation of the atomization core 20 and the shell 10 is realized, and then the detachable connection of the atomization core 20 and the shell 10 is realized. It can be understood that the protrusion can also be arranged on the outer wall surface of the shell 10, the sliding groove is arranged on the outer wall surface of the atomization core 20, and the limiting block is arranged in the sliding groove, so as to realize the detachable connection of the atomization core 20 and the shell 10; or the detachable connection of the atomization core 20 and the shell 10 can also be realized by magnetic attraction. Only the detachable connection of the atomization core 20 and the shell 10 is required, and the specific implementation mode is not limited.

[0043] In an embodiment, the atomization surface of the atomization core 20 faces upward, which can improve the atomization amount. When the atomization surface faces upward, the pin (not shown in the figure) of the atomization core 20 can be arranged at any position of the atomization core 20, and in the embodiment, the pin is arranged downward, which can facilitate the automatic assembly of the atomizer 1. The side of the atomization core 20 away from the power assembly 2 is provided with a suction passage 30, and the suction passage 30 communicates with the atomization cavity 201. The suction port 31 of the side of the suction passage 30 away from the power assembly 2 communicates with the atmosphere, so that the aerosol in the atomization cavity 201 can flow out through the suction passage 30 and be provided to the user for smoking through the suction port 31. In another embodiment, the atomization surface of the atomization core 20 faces downward.

[0044] Please refer to Figure 3 and Figure 4 , Figure 3 is a structural schematic view of an atomization core in an embodiment provided by the present application, Figure 4 is Figure 3 a bottom view structural schematic view of an atomization core provided by the present application.

[0045] The atomization core 20 provided by the present application comprises a liquid guide 21 and a heating body 22. The liquid guide 21 has a liquid absorption surface 212 and an atomization surface 211, and is used for guiding the aerosol generating substrate from the liquid absorption surface 212 to the atomization surface 211. The liquid absorption surface 212 can be arranged on any side surface of the liquid guide 21, for example, on the top surface, the bottom surface or the side surface of the liquid guide 21, and the atomization surface 211 can be arranged opposite to or adjacent to the liquid absorption surface 212, as long as the positions of the liquid absorption surface 212 and the atomization surface 211 do not conflict. In the embodiment, the liquid absorption surface 212 and the atomization surface 211 are arranged opposite to each other along the height direction of the liquid guide 21, and the heating body 22 is arranged on the atomization surface 211 and is used for heating and atomizing the aerosol generating substrate to generate aerosol.

[0046] Specifically, the liquid guide 21 can store and guide the aerosol generating substrate in the liquid storage cavity 12. The liquid guide 21 can be a fibrous layer or a porous ceramic or the like loose porous material. In this embodiment, the liquid guide 21 is a porous ceramic; or the liquid guide 21 is a dense matrix, which can be a dense ceramic or glass. Specifically, the liquid guide 21 can be a porous ceramic matrix or a perforated dense matrix, which can be a perforated glass matrix or a dense ceramic matrix, and the dense matrix has a through hole extending from the liquid suction surface 212 to the atomization surface 211. The liquid guide 21 in this embodiment is a porous ceramic. The porous ceramic material is generally a ceramic material sintered at high temperature by components such as aggregate, binder and pore former, which has a large number of interconnected pore structures communicating with the material surface. Due to the high porosity, stable chemical properties, large specific surface area, low bulk density, low thermal conductivity and excellent performance of corrosion resistance and high temperature resistance, the porous ceramic material has many applications in metallurgy, biology, energy and environmental protection. The liquid guide 21 can be cylindrical, flat or stepped, and the present application does not make specific limitations.

[0047] Specifically, the liquid guide 21 includes an atomization surface 211 and a liquid suction surface 212, and the liquid guide 21 is further provided with a liquid suction groove 213 communicating with the liquid suction surface 212. The liquid suction surface 212 and the liquid suction groove 213 are used to absorb the aerosol generating substrate in the liquid storage cavity 12, and then enter the atomization surface 211 through the through hole of the atomization surface 211. The heating body 22 is arranged on the atomization surface 211, which is used to heat and atomize the aerosol generating substrate entering the atomization surface 211 through the through hole, so as to generate aerosol for the user to smoke.

[0048] As shown in Figure 2 and Figure 3 , the heating body 22 is a metal layer, which can be formed by screen printing metal paste sintering or metal plating film forming. The metal paste can contain one or more elements of Ag, Cu, Au, Ni, W, Ru, Fe, etc. The paste form of the metal or alloy material is filled into the through hole of the liquid guide 21, matched with the porous structure ceramic liquid guide 21, and co-sintered to form the heating body 22.

[0049] In this embodiment, the heating body 22 is prepared by thick film printing; specifically, it can be screen printed by metal paste sintering. Specifically, the metal paste is attached to the atomization surface 211 according to the shape in this embodiment, and then sintered to form a curve heating body 22 with a certain thickness. Since the heating body 22 with edges and corners made by screen printing is easy to break or crack under thermal shock, the heating body 22 in this application adopts a curve type, which can overcome the above problems, so that the heating body 22 provided by the present application is more solid, the performance is more stable, and the service life is longer.

[0050] AsFigures 2 to 4 As shown, the heating body 22 is electrically connected with the power assembly 2 through the electrodes 25, which can be arranged on a part of the atomization surface 211, can extend to the edge of the atomization surface 211, or can extend to the side of the liquid guide 21, and the present application does not make any limitation in this regard. The heating body 22 can generate heat after being powered on, and can heat the aerosol generating substrate guided by the liquid guide 21 to atomize the aerosol generating substrate and form an aerosol. The heating body 22 is electrically connected with the battery and the controller of the power assembly 2, so that the battery can provide power for the heating body 22, and the controller can control the heating time and the heating power of the heating body 22.

[0051] In some embodiments, as shown in Figure 3 As shown, the atomization core 20 further comprises a plurality of electrode leads 16, the number of the electrode leads 16 corresponding to the number of the electrodes 25, one end of each of the plurality of electrode leads 16 being embedded in the liquid guide 21 and being electrically connected with the corresponding electrode 25, and the other end extending out of the atomization surface 211 for connecting the battery.

[0052] In other embodiments, as shown in Figure 2 As shown, the bottom of the electrode 25 is provided with a thimble 26 in direct contact with the electrode 25 for conducting the heating body 22 and the power assembly 2. The thimble 26 is in a vertical force direction when working, i.e. from the liquid suction surface 212 to the atomization surface 211. When the thimble 26 exerts a force, the interfitting structure of the liquid guide 21 and the conductor lead can play a limiting role, enhancing the stability of the electrically conductive contact between the two, while having excellent mechanical properties, preventing the conductor lead from falling off the liquid guide 21, and making the electrical conduction more stable.

[0053] Please refer to Figure 4 In an embodiment, the heating body 22 comprises at least two heating circuits that are parallel to each other and work independently, and the at least two heating circuits have a common intermediate heating section 220.

[0054] Specifically, the heating body 22 comprises at least two heating circuits, i.e. a first heating circuit 23 and a second heating circuit 24, that are parallel to each other and work independently, and the first heating circuit 23 and the second heating circuit 24 have a common intermediate heating section 220. Since the first heating circuit 23 and the second heating circuit 24 have the common intermediate heating section 220, by selecting the position of the common intermediate heating section 220, the area provided with the common intermediate heating section 220 can be effectively heated when the first heating circuit 23 or the second heating circuit 24 works independently. For example, according to the different shapes of the atomization surface 211, the shape and position of the core atomization area of the atomization surface 211 are also different, and by arranging the common intermediate heating section 220 at the center of the core atomization area, the temperature field distribution of the core atomization area can be made more uniform.

[0055] Moreover, when one of the first heating circuit 23 and the second heating circuit 24 is working and generating heat, the temperature near the working and generating heat circuit is higher, and the temperature of the area near the non-working and non-generating heat circuit is relatively lower. Since the first heating circuit 23 and the second heating circuit 24 have the common intermediate heating section 220, the heat generated by the working and generating heat circuit can be transferred to the non-working and non-generating heat circuit through the common intermediate heating section 220, thereby improving the distribution uniformity of the temperature field of the atomization surface 211.

[0056] In the embodiment, the atomization surface 211 is a regular pattern, for example, a rectangle, and the core atomization area of the atomization surface 211 is the central area of the atomization surface 211. The common intermediate heating section 220 is located in the central area of the atomization surface 211, so that the central area of the atomization surface 211 can be heated all the time whether the first heating circuit 23 is working or the second heating circuit 24 is working, further improving the distribution uniformity of the core atomization area of the atomization surface 211, and even improving the distribution uniformity of the temperature field of the entire atomization surface 211.

[0057] In an embodiment, the heating body 22 includes a plurality of heating sections, which can be the first heating section 221, the second heating section 222, the third heating section 223, the fourth heating section 224, and the common intermediate heating section 220. The first heating section 221, the second heating section 222, the third heating section 223, the fourth heating section 224, and the common intermediate heating section 220 constitute the heating part of the heating body 22. Specifically, the first ends of the first heating section 221 and the second heating section 222 are electrically connected to the first end 2201 of the common intermediate heating section 220, and the first ends of the third heating section 223 and the fourth heating section 224 are electrically connected to the second end 2202 of the common intermediate heating section 220. That is, the end of the first heating section 221, the second heating section 222, the third heating section 223, and the fourth heating section 224 close to the common intermediate heating section 220 is electrically connected to the common intermediate heating section 220, thereby constituting the heating part of the heating body 22.

[0058] In an embodiment, the atomization surface 211 is a rectangle, the length of the common intermediate heating section 220 along the first direction is greater than the width along the second direction, and the first direction is perpendicular to the second direction, that is, the common intermediate heating section 220 is a strip extending along the first direction.

[0059] Specifically, the first direction can be a width direction of the rectangular atomization face 211, and the second direction can be a length direction of the rectangular atomization face 211. The common intermediate heating section 220 has a length greater in the first direction than in the second direction, forming a rectangular common intermediate heating section 220. It can be understood that in other embodiments, the common intermediate heating section 220 can also be square, polygonal, etc., which is not limited in the present application.

[0060] Further, the first heating section 221 and the second heating section 222 are respectively located on opposite sides of the common intermediate heating section 220 along the second direction and extend along the second direction, and the third heating section 223 and the fourth heating section 224 are respectively located on opposite sides of the common intermediate heating section 220 along the second direction and extend along the second direction.

[0061] Specifically, based on the first direction and the second direction of the common intermediate heating section 220, the positions of the first heating section 221 and the second heating section 222 can be relatively fixed. Specifically, the first heating section 221 and the second heating section 222 are respectively located in the second direction of the common intermediate heating section, i.e., the horizontal direction in the figure, and the first heating section 221 and the second heating section 222 are oppositely arranged, which can be understood as the first heating section 221 and the second heating section 222 being symmetrically arranged on both sides of the common intermediate heating section 220, and the first heating section 221 and the second heating section 222 respectively extend in opposite directions in the horizontal direction. Similarly, the third heating section 223 and the fourth heating section 224 are also respectively arranged in the second direction of the common intermediate heating section 220, i.e., the horizontal direction in the figure, and the third heating section 223 and the fourth heating section 224 are oppositely symmetrically arranged on both sides of the common intermediate heating section 220 along the horizontal direction, and the third heating section 223 and the fourth heating section 224 respectively extend in opposite directions in the horizontal direction. It can be understood that in other embodiments, the positions of the first heating section 221 and the second heating section 222, the third heating section 223 and the fourth heating section 224 can be interchanged, or can be arranged in other positions and directions as needed, which is not limited in the present application. Since the size of the atomization face 211 in the second direction is greater than the size in the first direction, the first heating section 221, the second heating section 222, the third heating section 223 and the fourth heating section 224 are respectively located on opposite sides of the common intermediate heating section 220 along the second direction and extend along the second direction, so the core atomization area (i.e., the central region) of the atomization face 211 has poor thermal field uniformity in the first direction. In the present application, by arranging the common intermediate heating section 220 as a strip extending in the first direction, the thermal field uniformity of the core atomization area (i.e., the central region) of the atomization face 211 in the first direction can be effectively improved.

[0062] In addition, since the periphery of the heating body 22 is a concentrated area of soot, by arranging the first heating circuit 23 and the second heating circuit 24 to be used alternately, compared with using only the first heating circuit 23 or the second heating circuit 24, the formation of soot can be reduced, the atomization efficiency can be improved, and the atomization amount can be increased.

[0063] In some embodiments, the first heating section 221 and the third heating section 223 can be arranged axially symmetrically, and / or the second heating section 222 and the fourth heating section 224 can be arranged axially symmetrically, and / or the first heating section 221 and the second heating section 222 can be arranged axially symmetrically, and / or the third heating section 223 and the fourth heating section 224 can be arranged axially symmetrically.

[0064] For example, the first heating section 221 and the third heating section 223 can be arranged axially symmetrically with a common intermediate heating section 220 parallel to the central axis of the second direction, and the second heating section 222 and the fourth heating section 224 can be arranged axially symmetrically with a common intermediate heating section 220 parallel to the central axis of the second direction. The first heating section 221 and the second heating section 222 can be arranged axially symmetrically with a common intermediate heating section 220 parallel to the central axis of the first direction, and the third heating section 223 and the fourth heating section 224 can be arranged axially symmetrically with a common intermediate heating section 220 parallel to the central axis of the first direction. Therefore, it can be considered that in some embodiments, the heating sections of the heating body 22 are arranged axially symmetrically in both the first direction and the second direction.

[0065] In the present embodiment, the heating body 22 further comprises an electrode 25, which comprises a first electrode 251, a second electrode 252, a third electrode 253, and a fourth electrode 254; the first electrode 251, the second electrode 252, the third electrode 253, and the fourth electrode 254 are respectively electrically connected to the second end of the first heating section 221, the second heating section 222, the third heating section 223, and the fourth heating section 224 one by one. Among them, the first electrode 251, the first heating section 221, the common intermediate heating section 220, the fourth heating section 224, and the fourth electrode 254 constitute the first heating circuit 23; the third electrode 253, the third heating section 223, the common intermediate heating section 220, the second heating section 222, and the second electrode 252 constitute the second heating circuit 24.

[0066] Please refer to Figures 5 to 9 , Figure 5 is a first structure schematic diagram of a heating body provided by the first embodiment of the present application, Figure 6 is a second structure schematic diagram of a heating body provided by the first embodiment of the present application, Figure 7 is a third structure schematic diagram of a heating body provided by the first embodiment of the present application, Figure 8 is a fourth structure schematic diagram of a heating body provided by the first embodiment of the present application,Figure 9 is a fifth structural schematic diagram of the heating body provided in the first embodiment of the present application.

[0067] In the first embodiment, as shown in Figure 5 , the first structure of the first heating section 221 and the third heating section 223 can be that the first heating section 221 and the third heating section 223 are arranged on the same side of the common intermediate heating section 220 and are both convex to form an arc shape in a direction away from each other, while the second heating section 222 and the fourth heating section 224 are also arranged on the same side of the common intermediate heating section 220 and are both convex to form an arc shape in a direction away from each other.

[0068] Specifically, it can be understood that the first heating section 221 and the third heating section 223 are also oppositely arranged and symmetrically arranged on the same side of the common intermediate heating section 220, but different from the arrangement position of the first heating section 221 and the second heating section 222 is that the first heating section 221 and the third heating section 223 are oppositely arranged along the first direction of the common intermediate heating section 220. At the same time, the arc convex direction of the first heating section 221 and the third heating section 223 is away from each other, that is, the first heating section 221 and the third heating section 223 are convex to the outside, while the side of the first heating section 221 and the third heating section 223 close to each other is concave. Similarly, the second heating section 222 and the fourth heating section 224 are also oppositely arranged and symmetrically arranged on the same side of the common intermediate heating section 220, and the second heating section 222 and the fourth heating section 224 are oppositely arranged along the first direction of the common intermediate heating section 220, and the arc convex direction of the second heating section 222 and the fourth heating section 224 is away from each other.

[0069] In the present embodiment, the electrode 25 of the heating body 22 includes a first electrode 251, a second electrode 252, a third electrode 253 and a fourth electrode 254, and the first electrode 251, the second electrode 252, the third electrode 253 and the fourth electrode 254 are respectively and correspondingly electrically connected with the second end of the first heating section 221, the second heating section 222, the third heating section 223 and the fourth heating section 224. Moreover, the first electrode 251 and the third electrode 253 are positive electrodes, and the second electrode 252 and the fourth electrode 254 are negative electrodes. Among them, the first electrode 251, the first heating section 221, the common intermediate heating section 220, the fourth heating section 224 and the fourth electrode 254 form a first heating circuit 23; the third electrode 253, the third heating section 223, the common intermediate heating section 220, the second heating section 222 and the second electrode 252 form a second heating circuit 24. The first heating circuit 23 and the second heating circuit 24 in the present embodiment are symmetrical structures, and the whole heating body 22 is also a symmetrical structure.

[0070] In another embodiment, asFigure 6 As shown in FIG. 6, the second structure of the first heating section 221 and the third heating section 223 can be that the first heating section 221 and the third heating section 223 are also arranged on the same side of the common intermediate heating section 220 and are both convex to the direction close to the other party to form an arc shape, while the second heating section 222 and the fourth heating section 224 are also arranged on the same side of the common intermediate heating section 220 and are both convex to the direction close to the other party to form an arc shape.

[0071] In other embodiments, as shown in FIG. 7, the third structure of the first heating section 221 and the third heating section 223 can be that the first heating section 221 and the third heating section 223 are also arranged on the same side of the common intermediate heating section 220 and are both gradually aggregated to the direction close to the other party in the direction away from the common intermediate heating section 220 to form a funnel shape, while the second heating section 222 and the fourth heating section 224 are also arranged on the same side of the common intermediate heating section 220 and are both gradually aggregated to the direction away from the other party in the direction away from the common intermediate heating section 220 to form a funnel shape. Figure 7 In other embodiments, as shown in FIG. 8, the fourth structure of the first heating section 221 and the third heating section 223 can be that the first heating section 221 and the third heating section 223 are also arranged on the same side of the common intermediate heating section 220 and are both gradually spread apart to the direction away from the other party in the direction away from the common intermediate heating section 220 to form a horn shape, while the second heating section 222 and the fourth heating section 224 are also arranged on the same side of the common intermediate heating section 220 and are both gradually spread apart to the direction away from the other party in the direction away from the common intermediate heating section 220 to form a horn shape.

[0072] Figure 8 In other embodiments, as shown in FIG. 9, the fifth structure of the first heating section 221 and the third heating section 223 can be that the first heating section 221 and the third heating section 223 are also arranged on the same side of the common intermediate heating section 220 and are both linearly extended horizontally to the direction away from the other party in the direction away from the common intermediate heating section 220, and are bent to form a circular arc at the position close to the first electrode 251 and the third electrode 253, and are respectively electrically connected to the first electrode 251 and the third electrode 253 in one-to-one correspondence. Meanwhile, the second heating section 222 and the fourth heating section 224 are also arranged on the same side of the common intermediate heating section 220 and are both linearly extended horizontally to the direction away from the other party in the direction away from the common intermediate heating section 220, and are bent to form a circular arc at the position close to the second electrode 252 and the fourth electrode 254, and are respectively electrically connected to the second electrode 252 and the fourth electrode 254 in one-to-one correspondence.

[0073] In other embodiments, as shown in FIG. 10, the sixth structure of the first heating section 221 and the third heating section 223 can be that the first heating section 221 and the third heating section 223 are also arranged on the same side of the common intermediate heating section 220 and are both linearly extended horizontally to the direction away from the other party in the direction away from the common intermediate heating section 220, and are bent to form a circular arc at the position close to the first electrode 251 and the third electrode 253, and are respectively electrically connected to the first electrode 251 and the third electrode 253 in one-to-one correspondence. Meanwhile, the second heating section 222 and the fourth heating section 224 are also arranged on the same side of the common intermediate heating section 220 and are both linearly extended horizontally to the direction away from the other party in the direction away from the common intermediate heating section 220, and are bent to form a circular arc at the position close to the second electrode 252 and the fourth electrode 254, and are respectively electrically connected to the second electrode 252 and the fourth electrode 254 in one-to-one correspondence. Figure 9

[0074] ​​Furthermore, in the five structures mentioned above, each heating circuit can be designed as a single, integrally molded structure, which facilitates manufacturing. It is understood that in practical use, the heating element 22 can be manufactured in any shape, as long as it meets the requirement of having at least two heating circuits that can operate independently. In actual manufacturing, the number of heating circuits can also be three, four, or more, depending on the specific needs; this application does not impose any restrictions on this.

[0075] In the first embodiment, as Figures 5 to 9 As shown, the widths L1 of the first heating segment 221, L2 of the second heating segment 222, L3 of the third heating segment 223, and L4 of the fourth heating segment 224 are all equal, making the resistances of the first heating segment 221, the second heating segment 222, the third heating segment 223, and the fourth heating segment 224 basically equal. The power of the two heating circuits formed by any two heating segments of the first heating segment 221, the second heating segment 222, the third heating segment 223, and the fourth heating segment 224, as well as the common intermediate heating segment 220, is basically the same. This allows the service life of the heating element 22 to reach twice or more of that of a single heating circuit, thus improving the service life of the heating element 22.

[0076] Meanwhile, the width L1 of the first heating segment 221, the width L2 of the second heating segment 222, the width L3 of the third heating segment 223, and the width L4 of the fourth heating segment 224 are all smaller than the width L5 of the common intermediate heating segment 220.

[0077] Specifically, the width L5 of the common intermediate heating section 220 is set to be greater than the width of the four heating sections mentioned above, making the temperature distribution of the atomizing surface 211 of the heating element 22 more uniform, thereby making the heating more uniform and preventing excessive local temperature from producing too much soot. It can be understood that the peripheral area of ​​the atomizing surface 211 is closer to components such as the mounting base or housing and dissipates heat faster, while the central area is farther from components such as the mounting base or housing and dissipates heat slower. Therefore, if the heating part of the entire first heating circuit 23 or second heating circuit 24 heats uniformly, the temperature distribution of the atomizing surface 211 will be uneven. This application sets the width L5 of the common intermediate heating section 220 to be greater than the width of the four heating sections mentioned above, making the resistance of the common intermediate heating section 220 smaller. Since the current in the entire first heating circuit 23 or second heating circuit 24 is equal, according to Joule's law Q = I... 2 RT, the common intermediate heating section 220 generates less heat per unit time, thus making the temperature distribution of the entire atomizing surface 211 more uniform.

[0078] Since the width L1 of the first heating section 221, the width L2 of the second heating section 222, the width L3 of the third heating section 223, and the width L4 of the fourth heating section 224 are all equal, the first heating circuit 23 and the second heating circuit 24 can be the same circuit structure, so that the resistance values of the first heating circuit 23 and the second heating circuit 24 are equal, and the powers of the first heating circuit 23 and the second heating circuit 24 are equal, thereby being able to provide the same heat for the heating body 22.

[0079] Please refer to Figure 10 , Figure 10 is a structural schematic diagram of a heating body provided by the second embodiment of the present application.

[0080] In the second embodiment, the first heating section 221 and the third heating section 223 can be arranged to be center-symmetric, and / or the second heating section 222 and the fourth heating section 224 can be arranged to be center-symmetric. That is, the first heating section 221 and the third heating section 223, and the second heating section 222 and the fourth heating section 224 can be arranged to be center-symmetric at the same time, or only one of them can be arranged to be center-symmetric, which is not limited by the present application.

[0081] In the present embodiment, the heating body 22 further comprises an electrode 25, which comprises a first electrode 251, a second electrode 252, a third electrode 253, and a fourth electrode 254; the first electrode 251, the second electrode 252, the third electrode 253, and the fourth electrode 254 are respectively and one-to-one electrically connected with the second end of the first heating section 221, the second heating section 222, the third heating section 223, and the fourth heating section 224; wherein the first electrode 251, the first heating section 221, the common intermediate heating section 220, the fourth heating section 224, and the fourth electrode 254 are sequentially connected to form the first heating circuit 23; the third electrode 253, the third heating section 223, the common intermediate heating section 220, the second heating section 222, and the second electrode 252 are sequentially connected to form the second heating circuit 24.

[0082] In the present embodiment, the width L1 of the first heating section 221 and / or the width L4 of the fourth heating section 224 are adjusted, so that the width L1 of the first heating section 221 is less than the width L2 of the second heating section 222, and / or the width L4 of the fourth heating section 224 is less than the width L3 of the third heating section 223.

[0083] Specifically, in the embodiment, by simultaneously narrowing the width L1 of the first heating section 221 and the width L4 of the fourth heating section 224, the width L1 of the first heating section 221 is less than the width L2 of the second heating section 222, and the width L4 of the fourth heating section 224 is less than the width L3 of the third heating section 223, so that the resistance value of the first heating circuit 23 is greater than the resistance value of the second heating circuit 24, thereby enabling different heating powers of the two heating circuits, so that the first heating circuit 23 and the second heating circuit 24 can form different atomization amounts to meet the needs of users for different atomization amounts.

[0084] Referring to Figure 11 , Figure 11 is a structural schematic diagram of a heating body provided in a third embodiment of the present application.

[0085] The heating circuit of the third embodiment is basically the same as that of the first embodiment, and the difference lies in that in the third embodiment, the first heating circuit 23 and the second heating circuit 24 share one negative electrode. That is, in the embodiment, there are two positive electrodes and one negative electrode.

[0086] Specifically, the electrode 25 in the embodiment includes a first electrode 251, a second electrode 252, and a third electrode 253. The first electrode 251 and the third electrode 253 are respectively and one-to-one electrically connected to the second ends of the first heating section 221 and the third heating section 223. The second electrode 252 is respectively and one-to-one electrically connected to the second ends of the second heating section 222 and the fourth heating section 224. Among them, the first electrode 251, the first heating section 221, the common intermediate heating section 220, the second heating section 222, the fourth heating section 224, and the second electrode 252 form the first heating circuit 23; the third electrode 253, the third heating section 223, the common intermediate heating section 220, the second heating section 222, the fourth heating section 224, and the second electrode 252 form the second heating circuit 24.

[0087] In the embodiment, the width L1 of the first heating section 221, the width L2 of the second heating section 222, the width L3 of the third heating section 223, and the width L4 of the fourth heating section 224 are all equal, so that the first heating circuit 23 and the second heating circuit 24 can be completely the same circuit structure, so that the resistance values of the first heating circuit 23 and the second heating circuit 24 are equal, thereby making the powers of the first heating circuit 23 and the second heating circuit 24 equal, and enabling the heating body 22 to provide the same heat.

[0088] Compared with the first embodiment, the third embodiment reduces one negative electrode of the heating circuit, thereby reducing the complexity of the circuit design. When the heating body 22 is connected to the first heating circuit 23 to the common intermediate heating section 220, the current mostly flows to the second heating section 222 and a small part flows to the fourth heating section 224, so that the heat field of the heating body 22 is more uniform, thereby making the service life of the heating body 22 reach two times or more.

[0089] Please refer to Figure 12 , Figure 12 is a structural schematic diagram of a heating body provided by the fourth embodiment of the present application.

[0090] The heating circuit of the fourth embodiment is basically the same as that of the first embodiment, and the difference is that: in the fourth embodiment, the electrode 25 includes a first electrode 251, a second electrode 252, a third electrode 253, and a fourth electrode 254; the first electrode 251, the second electrode 252, the third electrode 253, and the fourth electrode 254 are respectively and correspondingly electrically connected to the second end of the first heating section 221, the second heating section 222, the third heating section 223, and the fourth heating section 224; wherein one group of electrodes among the first electrode 251, the second electrode 252, the third electrode 253, and the fourth electrode 254 and the heating sections electrically connected to the one group of electrodes form the first heating circuit 23, and another group of electrodes and the heating sections electrically connected to the another group of electrodes form the second heating circuit 24.

[0091] Specifically, in the present embodiment, the first electrode 251, the second electrode 252, the third electrode 253, and the fourth electrode 254 and the first heating section 221, the second heating section 222, the third heating section 223, and the fourth heating section 224 can be arbitrarily and correspondingly combined to form the first heating circuit 23 and the second heating circuit 24.

[0092] As shown in Figure 12 , the width and length of the first heating section 221, the second heating section 222, the third heating section 223, and the fourth heating section 224 can all be set to different values, and the resistance values of the first heating circuit 23 and the second heating circuit 24 formed by any two heating sections, the common intermediate heating section 220, and the electrodes electrically connected to the two heating sections are all different, which can be flexibly matched to form a variety of combinations of heating circuits.

[0093] For example, the first electrode 251, the first heating section 221, the common intermediate heating section 220, the fourth heating section 224, and the fourth electrode 254 constitute the first heating circuit 23; the third electrode 253, the third heating section 223, the common intermediate heating section 220, the second heating section 222, and the second electrode 252 constitute the second heating circuit 24. For another example, the first electrode 251, the first heating section 221, the common intermediate heating section 220, the third heating section 223, and the third electrode 253 constitute the first heating circuit 23; the second electrode 252, the second heating section 222, the common intermediate heating section 220, the fourth heating section 224, and the fourth electrode 254 constitute the second heating circuit 24. The above two heating circuit setting modes can form two parallel and independently working first heating circuit 23 and second heating circuit 24, realize switching of the two heating circuits, and thus improve the service life of the heating body 22.

[0094] The heating circuit setting mode in the embodiment can further improve the selectivity of the heating level and improve the heating and atomization efficiency of the atomizer core 20.

[0095] In the embodiment, the common intermediate heating section 220 is arranged at the intermediate position of the atomization surface 211, and the width L5 of the common intermediate heating section 220 is greater than the width of the four heating sections, so that the resistance of the common intermediate heating section 220 is smaller. Since the current in the whole first heating circuit 23 or second heating circuit 24 is equal, according to the Joule law Q = I2RT, the common intermediate heating section 220 generates less heat in unit time and has a lower temperature, so that the common intermediate heating section 220 generates less carbon deposition, while the four heating sections generate more carbon deposition. However, since the four heating sections do not work at the same time, when a certain heating section does not work and other heating sections work, the flowing atomization substrate has a certain cleaning effect. Through the flow of the liquid atomization substrate, part of the generated carbon deposition is dispersed by the atomization effect, and a part of the soot can be removed, so that the accumulation of a part of the soot can be reduced to a certain extent, the soot generated by the whole heating body 22 is less, and the service life of the heating body 22 is improved.

[0096] Please refer to Figure 13 , Figure 13 is a comparison chart of optical photos of the existing S-shaped heating film and the heating body provided in the first embodiment to the third embodiment of the present application after 250 puffs.

[0097] In order to verify the technical effects of the embodiments provided in the present application, the inventors compared the existing S-shaped heating film and the heating body 22 in the embodiments of the present application from the angles of atomization amount, taste, image of the heating body 22 after 250 puffs, temperature field comparison, etc. Please refer to Table 1.

[0098] Table 1

[0099]

[0100] From the above table 1, it can be seen that the heating body 22 in the embodiments one to four is obviously superior to the S-shaped heating film of the existing product in temperature field performance and atomization amount performance. Especially in the electronic atomization device product, the service life is much longer than that of the existing product. For sweet atomization substrates, embodiment one can be smoked more than 1200 times, embodiment two can be smoked more than 1000 times, and the existing technology can be smoked about 600 times, which has great improvement.

[0101] The above embodiments have simple implementation, high effect achievement, and strong application value for disposable atomization substrates and other high service life requirements, different smoke satisfaction market demands, and existing atomization substrates and other easy-to-fail products.

[0102] Compared with the existing product, the present application has the advantages of long service life, less smoke dirt, and large atomization amount. At the same time, the technical scheme of the present application greatly reduces the thermal stress of the heating body 22, thereby reducing the risk of stress cracking and improving the safety of the product.

[0103] The atomization core disclosed in the present application comprises a liquid guide body and a heating body. The liquid guide body has oppositely arranged liquid suction surfaces and atomization surfaces, and is used to guide the aerosol generating substrate from the liquid suction surface to the atomization surface. The heating body is arranged on the atomization surface and is used to heat and atomize the aerosol generating substrate to generate aerosol. The heating body comprises a first heating circuit and a second heating circuit which are connected in parallel and work independently. By arranging at least two independently working heating circuits, the service life of the heating body is greatly improved. Moreover, the first heating circuit and the second heating circuit have a common intermediate heating section, which solves the problem of uneven local heating of the heating body. At the same time, the present application forms different heating modes by switching the two heating circuits to provide different atomization amounts and improve the smoking satisfaction of users.

[0104] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process conversion using the contents of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. An atomizing core, characterized in that, The utility model relates to an aerosol generating device, comprising: a liquid guide having a liquid receiving surface and an atomization surface for guiding an aerosol generating substrate from the liquid receiving surface to the atomization surface; a heating element disposed at the atomization surface for heating and atomizing the aerosol generating substrate to generate an aerosol; wherein the heating element comprises a first heating circuit and a second heating circuit that are connected in parallel and operate independently, and the first heating circuit and the second heating circuit have a common intermediate heating section; the heating element is a curved heating element; the heating element comprises a plurality of heating sections, which are a first heating section, a second heating section, a third heating section, a fourth heating section, and the common intermediate heating section; the first end of the first heating section and the second heating section are electrically connected to the first end of the common intermediate heating section, and the first end of the third heating section and the fourth heating section are electrically connected to the second end of the common intermediate heating section.

2. The atomizer core of claim 1, wherein, The common intermediate heating section is located at the center of the atomization surface.

3. The atomizer core of claim 1, wherein, The length of the common intermediate heating section along a first direction is greater than the width along a second direction, and the first direction is perpendicular to the second direction; the first heating section and the second heating section are located on opposite sides of the common intermediate heating section along the second direction and extend along the second direction, and the third heating section and the fourth heating section are located on opposite sides of the common intermediate heating section along the second direction and extend along the second direction.

4. The atomizer core of claim 3, wherein, The first heating section and the third heating section are located on the same side of the common intermediate heating section and are both arc-shaped protrusions away from each other; the second heating section and the fourth heating section are located on the same side of the common intermediate heating section and are both arc-shaped protrusions away from each other.

5. The atomizer core of claim 4, wherein, The width of the first heating section, the width of the second heating section, the width of the third heating section, and the width of the fourth heating section are all less than the width of the common intermediate heating section.

6. The atomizer core of claim 5, wherein, The first heating section and the third heating section are arranged in axial symmetry, and / or the second heating section and the fourth heating section are arranged in axial symmetry, and / or the first heating section and the second heating section are arranged in axial symmetry, and / or the third heating section and the fourth heating section are arranged in axial symmetry.

7. The atomizer core of claim 4, wherein, The first heating section and the third heating section are arranged in central symmetry, and / or the second heating section and the fourth heating section are arranged in central symmetry; The width of the first heating section is less than the width of the second heating section.

8. The atomizer core according to any one of claims 1-7, characterized in that The heating element further comprises a plurality of electrodes, which are a first electrode, a second electrode, a third electrode, and a fourth electrode; The first electrode, the second electrode, the third electrode, and the fourth electrode are respectively electrically connected to the second end of the first heating section, the second heating section, the third heating section, and the fourth heating section in one-to-one correspondence; wherein the first electrode, the first heating section, the common intermediate heating section, the fourth heating section, and the fourth electrode form the first heating circuit; the third electrode, the third heating section, the common intermediate heating section, the second heating section, and the second electrode form the second heating circuit.

9. The atomizer core according to any one of claims 1-7, characterized in that The heating body further comprises a plurality of electrodes, respectively a first electrode, a second electrode, a third electrode, and a fourth electrode; The first electrode and the third electrode are respectively electrically connected with the second end of the first heating section and the third heating section one by one; The second electrode is electrically connected with the second end of the second heating section and the fourth heating section respectively; The first electrode, the first heating section, the common intermediate heating section, the second heating section, the fourth heating section, and the second electrode constitute the first heating circuit; The third electrode, the third heating section, the common intermediate heating section, the second heating section, the fourth heating section, and the second electrode constitute the second heating circuit.

10. The atomizer core according to any one of claims 1-7, characterized in that The heating body further comprises a plurality of electrodes, respectively a first electrode, a second electrode, a third electrode, and a fourth electrode; The first electrode, the second electrode, the third electrode, and the fourth electrode are respectively electrically connected with the second end of the first heating section, the second heating section, the third heating section, and the fourth heating section one by one; The first electrode, the second electrode, the third electrode, and the fourth electrode constitute the first heating circuit, and the other group of electrodes and the heating section electrically connected with the other group of electrodes constitute the second heating circuit.

11. An atomiser characterised in that, Comprise: A housing having a receiving cavity; An atomization core arranged in the receiving cavity and cooperating with the housing to form a liquid storage cavity; The atomization core is used to heat and atomize an aerosol generating substrate from the liquid storage cavity to form an aerosol when powered on; The atomization core is as claimed in any one of claims 1-10.

12. An electronic atomizing device, characterized by, Comprise: An atomizer; The atomizer is as claimed in claim 11; A power supply assembly electrically connected with the atomizer for supplying power to the atomizer.

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