Heating element assembly, atomizer and electronic atomization device

Abstract

The application provides a heating element assembly, an atomizer and an electronic atomization device. The heating element assembly comprises a heating element and a base. The heating element comprises a sheet-shaped substrate. The base is provided with a first communication hole. The heating element is embedded in the base and spans the first communication hole. The heating element is detachably connected with the base. Through the above arrangement, the heating element is assembled with the base in the atomizer, thereby avoiding the problem that the heating element with a relatively thin thickness is easily broken during transportation or assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomizers, in particular to a heating element assembly, an atomizer and an electronic atomization device. BACKGROUND

[0002] An electronic atomization device is composed of a heating element, a battery and a control circuit, etc. The heating element is the core component of the electronic atomization device, and its characteristics determine the atomization effect and use experience of the electronic atomization device.

[0003] The existing heating elements are mainly cotton core heating elements and ceramic heating elements. The cotton core heating element is mostly a structure in which a spring-shaped metal heating wire is wound around a cotton rope or a fiber rope. The liquid aerosol generating substrate to be atomized is sucked by the cotton rope at both ends and then transmitted to the central metal heating wire for heating and atomization. The ceramic heating element is mostly a heating element formed on the surface of a porous ceramic body, and the porous ceramic body plays a role of guiding and storing liquid.

[0004] With the advancement of technology, users have higher and higher requirements for the atomization effect of the electronic atomization device. In order to meet the needs of users, a thin heating element is provided to improve the liquid supply capacity, such as a sheet-shaped microporous array glass heating element. However, such a thin heating element is prone to breakage. SUMMARY

[0005] Therefore, the present application provides a heating element assembly, an atomizer and an electronic atomization device to solve the technical problem that the thin heating element in the prior art is prone to breakage.

[0006] To solve the above technical problem, the first technical solution provided by the present application is to provide a heating element assembly, comprising a heating element and a base. The heating element comprises a sheet-shaped base. The base is provided with a first communication hole. The heating element is embedded in the base and spans the first communication hole. The heating element and the base are detachably connected.

[0007] The sidewall of the base is provided with an insertion port, and the insertion port is in communication with the first communication hole. The insertion port is arranged in cooperation with the heating element, so that the heating element is arranged in the base through the insertion port.

[0008] The hole wall of the first communication hole is provided with a mounting cavity, and the heating element is arranged in the mounting cavity.

[0009] The mounting cavity is an annular groove arranged on the hole wall of the first communication hole. The peripheral edge of the heating element is arranged in the mounting cavity, and the middle part of the heating element is suspended through the first communication hole.

[0010] The base comprises a first sub-base and a second sub-base; the first sub-base and the second sub-base cooperate to form the first communication hole and the mounting cavity, and the heat-generating body is arranged in the mounting cavity.

[0011] The first sub-base is provided with a first connecting structure, and the second sub-base is provided with a second connecting structure; the first sub-base and the second sub-base are detachably connected through the first connecting structure and the second connecting structure.

[0012] The first sub-base and the second sub-base are arranged in a stack; the heat-generating body divides the first communication hole into a first sub-communication hole and a second sub-communication hole; the first sub-communication hole is located on the first sub-base, and the second sub-communication hole is located on the second sub-base.

[0013] The first sub-base is formed with a first groove near a surface of the second sub-base, and the second sub-base is formed with a second groove near a surface of the first sub-base; the first groove and the second groove cooperate to form the mounting cavity.

[0014] The first sub-base and the second sub-base are arranged side by side; the first sub-base is provided with a first opening near one end of the second sub-base, and the second sub-base is provided with a second opening near one end of the first sub-base; the first opening and the second opening cooperate to form the first communication hole.

[0015] The first opening is provided with a third groove on a bottom wall thereof, and the second opening is provided with a fourth groove on a bottom wall thereof; the third groove and the fourth groove cooperate to form the mounting cavity.

[0016] The heat-generating body is arranged on a middle line in the thickness direction of the base.

[0017] The sheet-shaped base body is a dense base body with a thickness less than or equal to 1 mm; or the sheet-shaped base body is a porous ceramic sheet with a thickness less than or equal to 2 mm.

[0018] The sheet-shaped base body comprises a liquid absorption surface and an atomization surface opposite to the liquid absorption surface; the heat-generating body further comprises a heat-generating element arranged on the atomization surface.

[0019] The sheet-shaped base body is the dense base body; the sheet-shaped base body is provided with a plurality of first micropores, and the first micropores are through holes penetrating through the liquid absorption surface and the atomization surface.

[0020] The material of the base is silicone, fluororubber, plastic, or resin.

[0021] To solve the above technical problems, a second technical solution provided by the present application is to provide an atomizer, comprising a liquid storage cavity and a heating element assembly; the liquid storage cavity is used to store liquid aerosol generating substrate, and the heating element assembly is used to atomize the aerosol generating substrate; the heating element assembly is any one of the above-mentioned heating element assemblies.

[0022] To solve the above technical problems, a third technical solution provided by the present application is to provide an electronic atomization device, comprising an atomizer and a main machine, the atomizer is the above-mentioned atomizer, and the main machine controls the atomizer to work.

[0023] The beneficial effects of the present application: Different from the prior art, the heating element assembly in the present application comprises a heating element and a base; the heating element comprises a sheet-shaped substrate; the base is provided with a first communication hole; the heating element is embedded in the base and spans the first communication hole; the heating element and the base are detachably connected. Through the above-mentioned setting, the heating element is assembled with the base in the atomizer, avoiding the problem that the heating element with thin thickness is easily broken during transportation or assembly. BRIEF DESCRIPTION OF DRAWINGS

[0024] 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 below. 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.

[0025] Figure 1 is a structural schematic diagram of an electronic atomization device provided by the present application;

[0026] Figure 2 is a structural schematic diagram of an atomizer provided by the present application;

[0027] Figure 3 is a structural schematic diagram of a first embodiment of a heating element assembly in the atomizer provided by the present application;

[0028] Figure 4 is Figure 3 a cross-sectional schematic diagram of the heating element assembly provided by the present application along the A-A direction;

[0029] Figure 5 is Figure 3 a structural schematic diagram of a heating element in the heating element assembly of the present application;

[0030] Figure 6 is Figure 5 a structural schematic diagram of a sheet-shaped substrate in the heating element of the present application;

[0031] Figure 7 is Figure 4A schematic diagram of the structure of an embodiment of the mounting cavity in the heating element assembly;

[0032] Figure 8 yes Figure 4 A schematic diagram of another embodiment of the mounting cavity in the heating element assembly;

[0033] Figure 9 yes Figure 3 A schematic diagram of the assembly method of the heating element and the base in the heating element assembly;

[0034] Figure 10 yes Figure 3 A schematic diagram of another assembly method of the heating element and the base in the heating element assembly;

[0035] Figure 11 This is a schematic diagram of the structure of the heating element assembly in the atomizer provided in this application, according to a second embodiment.

[0036] Figure 12 This is another structural schematic diagram of the heating element assembly in the atomizer provided in this application;

[0037] Figure 13 yes Figure 12 A schematic cross-sectional view of the heating element assembly along the BB direction;

[0038] Figure 14 This is a schematic diagram of the structure of the heating element assembly in the atomizer provided in this application, representing a third embodiment.

[0039] Figure 15 yes Figure 14 A schematic diagram of another embodiment of the spring in the provided heating element assembly;

[0040] Figure 16 yes Figure 14 A schematic diagram of another embodiment of the spring in the provided heating element assembly. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0042] The terms "first", "second", "third", etc. in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0043] 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 explicitly understood that the embodiments described herein can be combined with each other, implicitly and explicitly.

[0044] Please refer to Figure 1 , Figure 1 is a structural schematic diagram of an electronic atomization device provided by the present application.

[0045] In the present embodiment, an electronic atomization device 100 is provided, which can be used for atomization of an aerosol generating substrate. The electronic atomization device 100 comprises an atomizer 1 and a main machine 2 which are electrically connected to each other. The atomizer 1 and the main machine 2 can be integrally arranged, or can be detachably connected, and can be designed according to specific needs.

[0046] The atomizer 1 is used for storing an aerosol generating substrate and atomizing the aerosol generating substrate to form an aerosol for a user to smoke. The aerosol generating substrate can be a liquid such as a medicinal liquid, a plant leaf liquid, etc. The atomizer 1 can be used in different fields, such as medical treatment, beauty, leisure smoking, etc. The specific structure and function of the atomizer 1 can be referred to the specific structure and function of the atomizer 1 involved in any of the following embodiments, and the same or similar technical effects can be achieved, which will not be described here.

[0047] The host 2 comprises a battery (not shown in the figure), an airflow sensor (not shown in the figure) and a controller (not shown in the figure). The battery is used to power the atomizer 1, so that the atomizer 1 can atomize the aerosol generating substrate to form an aerosol; the airflow sensor is used to detect the airflow change in the electronic atomization device 100, and the controller controls whether the atomizer 1 works according to the airflow change detected by the airflow sensor and a preset program.

[0048] Please refer to Figures 2-6 , Figure 2 is a structural schematic diagram of an atomizer provided by the present application, Figure 3 is a structural schematic diagram of a first embodiment of a heating element assembly in the atomizer provided by the present application, Figure 4 is Figure 3 a sectional schematic diagram of the heating element assembly provided by the present application along the direction of A-A, Figure 5 is Figure 3 a structural schematic diagram of a heating element in the heating element assembly, Figure 6 is Figure 5 a structural schematic diagram of a sheet-shaped substrate in the heating element.

[0049] The atomizer 1 comprises a shell 10, an atomization seat 11 and a heating element assembly 12. The shell 10 has a liquid storage cavity 13 for storing liquid aerosol generating substrate and an air outlet channel 14, and the liquid storage cavity 13 is arranged around the air outlet channel 14. The end of the shell 10 also has a suction port 15 which communicates with the air outlet channel 14. The shell 10 has a containing cavity 16 on the side of the liquid storage cavity 13 away from the suction port 15, and the atomization seat 11 is arranged in the containing cavity 16. The atomization seat 11 comprises an atomization top seat 111 and an atomization bottom seat 112, and the atomization top seat 111 and the atomization bottom seat 112 cooperate to form a receiving cavity 113; that is, the atomization seat 11 has the receiving cavity 113. The heating element assembly 12 is arranged in the receiving cavity 113 and is arranged in the containing cavity 16 together with the atomization seat 11.

[0050] Two liquid downward channels 114 are arranged on the atomization top seat 111, specifically, two liquid downward channels 114 are arranged on the top wall of the atomization top seat 111 and are arranged on both sides of the air outlet channel 14. One end of the liquid downward channel 114 communicates with the liquid storage cavity 13, and the other end communicates with the receiving cavity 113, so that the aerosol generating substrate in the liquid storage cavity 13 enters the heating element assembly 12 through the liquid downward channel 114.

[0051] The heating element assembly 12 is used to atomize the aerosol generating substrate to generate aerosol. The heating element assembly 12 includes a heating element 121 and a base 122. In the embodiment, the heating element 121 forms an atomization cavity 115 between the surface of the liquid storage cavity 13 and the inner wall surface of the receiving cavity 113, and the atomization cavity 115 communicates with the air outlet passage 14. The atomization base 112 is provided with an air inlet 116 to communicate the atomization cavity 115 with the outside. The outside air enters the atomization cavity 115 through the air inlet 116, carries the aerosol atomized by the heating element 121 in the heating element assembly 12 into the air outlet passage 14, and finally reaches the suction port 15 to be inhaled by the user.

[0052] Specifically, the base 122 is provided with a first communication hole 1221; the heating element 121 is embedded in the base 122 and spans the first communication hole 1221, and the heating element 121 is at least partially exposed through the first communication hole 1221. The heating element 121 and the base 122 are detachably connected. Wherein, the heating element 121 spanning the first communication hole 1221 means that the heating element 121 overlaps the entire circumference of the end surface of the first communication hole 1221; that is, the heating element 121 covers the entire first communication hole 1221.

[0053] Referring to Figure 5 and Figure 6 The heating element 121 includes a sheet-shaped base 1211 and a heating element 1212. The heating element 1212 is arranged on the sheet-shaped base 1211. The sheet-shaped base 1211 can be a sheet-shaped dense base with a thickness less than or equal to 1 mm, for example, a sheet-shaped glass sheet; the sheet-shaped base 1211 can also be a sheet-shaped porous ceramic tile base with a thickness less than or equal to 2 mm. The heating element 1212 can be a heating sheet, a heating film, a heating net, etc., which can be arranged on the surface of the sheet-shaped base 1211 or embedded in the sheet-shaped base 1211, and the specific design is made according to the needs. In some embodiments, the sheet-shaped base 1211 itself can heat, for example, a ceramic heating element that heats itself, and in this case, the heating element 1212 does not need to be additionally arranged.

[0054] Wherein, the sheet-shaped base 1211 is defined as a sheet-shaped body relative to a block-shaped body, and the ratio of the length to the thickness of the sheet-shaped base 1211 is larger than the ratio of the length to the thickness of the block-shaped body. In the embodiment, the sheet-shaped base 1211 is a flat plate.

[0055] The application inventors have found that the sheet-shaped substrate 1211, whether a dense substrate or a porous substrate, is prone to breakage during transportation or assembly due to its small thickness and low mechanical strength, resulting in inconvenient assembly and high cost of the atomizer 1 using the heating body 121. Therefore, the heating body 121 and the base 122 are prepared to form a detachable structure, and the base 122 is used to increase the resistance of the heating body 121, which is conducive to preventing the breakage of the heating body 121; the heating body 121 and the base 122 are assembled together in the atomizer 1, which avoids the breakage of the heating body 121 with a small thickness during transportation or assembly. At the same time, the detachable connection between the heating body 121 and the base 122 is conducive to standardizing the size of the heating body 121 and the base 122, and the heating body 121 can be replaced to be suitable for different models of electronic atomization devices 100. In addition, the base 122 is used to increase the resistance of the heating body 121, which is conducive to preventing the breakage of the heating body 121, and the heating body assembly 12 can be automatically assembled when assembled in the atomizer 1, which is conducive to improving the production efficiency.

[0056] The sheet-shaped substrate 1211 includes opposite liquid absorption surfaces and atomization surfaces. In the present embodiment, the heating element 1212 is arranged on the atomization surface, and the atomization surface and the inner wall surface of the accommodation cavity 113 form the atomization cavity 115. Hereinafter, the sheet-shaped substrate 1211 in the heating body 121 is taken as an example of a sheet-shaped dense substrate with a thickness less than or equal to 1 mm, and the heating element 1212 in the heating body 121 is taken as an example of a heating film to be described in detail.

[0057] The sheet-shaped substrate 1211 includes a first surface 1211a and a second surface 1211b opposite to the first surface 1211a; a plurality of first micropores 1211c are arranged on the sheet-shaped substrate 1211, and the first micropores 1211c are through holes penetrating the first surface 1211a and the second surface 1211b. The heating element 1212 is formed on the first surface 1211a. Among them, the surface of the sheet-shaped substrate 1211 on which the heating element 1212 is arranged is the atomization surface, that is, the first surface 1211a of the sheet-shaped substrate 1211 is the atomization surface, and the second surface 1211b of the sheet-shaped substrate 1211 is the liquid absorption surface. That is, the sheet-shaped substrate 1211 includes a liquid absorption surface and an atomization surface opposite to the liquid absorption surface, and the heating element 1212 is arranged on the atomization surface; the first micropore 1211c is a through hole penetrating the liquid absorption surface and the atomization surface. The first micropore 1211c is used to guide the aerosol generating substrate from the liquid absorption surface to the atomization surface, and the first micropore 1211c has a capillary effect.

[0058] The application can control the porosity of the heating body 121 accurately by setting a plurality of first micropores 1211c with capillary force on the sheet-shaped substrate 1211, and improve the consistency of the product. That is, in batch production, the porosity of the sheet-shaped substrate 1211 in the heating body 121 is basically consistent, and the thickness of the heating element 1212 formed on the sheet-shaped substrate 1211 is uniform, so that the electronic atomization device 100 of the same batch has consistent atomization effect.

[0059] In the embodiment, the heating element 1212 is a heating film, and the heating element 1212 is provided with a second micropore 1212a at the first micropore 1211c.

[0060] In an embodiment, the sheet-shaped substrate 1211 is provided with a micropore array area and a blank area surrounding the micropore array area; the micropore array area has a plurality of first micropores 1211c; and the first communication hole 1221 exposes the micropore array area completely. It can be understood that the size of the area around the micropore array area of the sheet-shaped substrate 1211 in the application is larger than the pore diameter of the first micropore 1211c, which can be called a blank area; that is, the blank area in the application is an area that can form a first micropore 1211c but does not form a first micropore 1211c, rather than an area around the micropore array area that cannot form a first micropore 1211c. The blank area is not provided with the first micropore 1211c, which reduces the number of first micropores 1211c on the sheet-shaped substrate 1211, thereby improving the strength of the sheet-shaped substrate 1211 in the heating body 121 and reducing the production cost of setting the first micropore 1211c on the sheet-shaped substrate 1211.

[0061] Continuing to refer to Figures 2-4 The base 122 is provided with a first communication hole 1221, and the first communication hole 1221 exposes at least part of the plurality of first micropores 1211c. The aerosol generating substrate in the liquid storage cavity 13 passes through the liquid passage 114 and the first communication hole 1221 to reach the sheet-shaped substrate 1211 of the heating body 121, and is guided from the second surface 1211b to the first surface 1211a by the capillary force of the first micropore 1211c on the sheet-shaped substrate 1211, so that the aerosol generating substrate is atomized by the heating element 1212; that is, the first micropore 1211c is in communication with the liquid storage cavity 13 through the first communication hole 1221, the liquid passage 114. The material of the sheet-shaped substrate 1211 can be glass or dense ceramic; when the sheet-shaped substrate 1211 is glass, it can be one of ordinary glass, quartz glass, borosilicate glass, and photosensitive lithium aluminum silicate glass.

[0062] Specifically, an insertion opening 1222 is arranged on the side wall of the base 122, i.e. the side wall surrounding the first communication hole 1221, and the insertion opening 1222 communicates with the first communication hole 1221. The insertion opening 1222 is arranged in cooperation with the heat generating body 121, so that the heat generating body 121 is arranged in the base 122 through the insertion opening 1222. The extension direction of the insertion opening 1222 intersects the extension direction of the first communication hole 1221. In the embodiment, the extension direction of the first communication hole 1221 is parallel to the thickness direction of the base 122, and the extension direction of the insertion opening 1222 is perpendicular to the extension direction of the first communication hole 1221. The shape and size of the insertion opening 1222 are not limited, and can be designed according to the shape and size of the heat generating body 121, and it is necessary to ensure that the heat generating body 121 does not need to be inserted too hard to avoid breakage.

[0063] The position of the insertion opening 1222 in the thickness direction of the base 122 is not limited, for example, it can be located at the middle position of the side wall of the base 122 in the thickness direction of the base 122. The insertion opening 1222 can be arranged on any one side wall of the base 122. For example, the annular side wall of the base 122 is arranged in a rectangular shape, including two oppositely arranged long sides and two oppositely arranged short sides; the insertion opening 1222 can be arranged on one long side, so that the heat generating body 121 can have a shorter insertion path, avoiding breakage caused by too long insertion path. In an alternative embodiment, the insertion opening 1222 can extend from one side wall to another side wall. For example, the annular side wall of the base 122 is arranged in a rectangular shape, including two oppositely arranged long sides and two oppositely arranged short sides; the insertion opening 1222 is located at the corner of the side wall, extending from one long side to the adjacent short side, so that the strength of the side wall caused by the insertion opening 1222 arranged on the same side wall can be avoided.

[0064] The base 122 can be assembled from multiple parts or integrally formed. In this embodiment, the base 122 is integrally formed. The material of the base 122 can be an elastic material such as silicone or fluororubber, or a hard material such as plastic or resin. It can be understood that when the material of the base 122 is a hard material, the hard material hardly deforms, the size of the insertion opening 1222 is slightly larger than the size of the heating body 121 to reserve an assembly gap, facilitating insertion or extraction of the heating body 121, and at least the heating body 121 and the insertion opening 1222 cannot be interference fit; the reserved assembly gap is not enough for the heating body 121 to spontaneously slide out of the insertion opening 1222, and only under the action of an external force can the heating body 121 be extracted from the insertion opening 1222. When the material of the base 122 is an elastic material such as silicone or fluororubber that has a sealing function, the base 122 directly cooperates with the atomizing top seat 111 to achieve sealing between the heating body 121 and the lower liquid passage 114 of the atomizing top seat 111, which can reduce the number of components and simplify the assembly process. When the material of the base 122 is plastic or resin that cannot achieve sealing, a special sealing member needs to be arranged between the base 122 and the atomizing top seat 111 to seal the lower liquid passage 114 and the heating body 121.

[0065] Further, the first communication hole 1221 is provided with a mounting cavity 1221a on the hole wall, and the heating body 121 is arranged in the mounting cavity 1221a. Specifically, the peripheral edge of the heating body 121 is arranged in the mounting cavity 1221a, and the middle part of the heating body 121 is suspended through the first communication hole 1221. In an embodiment, the blank area of the heating body 121 is arranged in the mounting cavity 1221a, and the micropore array area of the heating body 121 is suspended in the first communication hole 1221. In an embodiment, the non-atomizing area of the heating body 121 is arranged in the mounting cavity 1221a, and the atomizing area of the heating body 121 is suspended in the first communication hole 1221 to receive the aerosol generating substrate and atomize to generate aerosol. It can be understood that the atomizing area of the heating body 121 is the area that can heat and atomize the aerosol generating substrate to generate aerosol, and the non-atomizing area of the heating body 121 is other area except the atomizing area.

[0066] In this embodiment, an annular groove is arranged on the hole wall of the first communication hole 1221, the annular groove forms the mounting cavity 1221a, and the annular groove is in communication with the insertion opening 1222, or the insertion opening 1222 is arranged on the bottom wall of the annular groove. Optionally, the annular groove is arranged on the center line in the thickness direction of the base 122, so that the heating body 121 is arranged on the center line in the thickness direction of the base 122, and the upper and lower sides of the heating body 121 are subjected to the same reinforcing effect of the base 122.

[0067] In other embodiments, since an insertion port 1222 is provided on the side wall of the base 122, and the insertion port 1222 communicates with the first communicating hole 1221, that is, the hole wall of the first communicating hole 1221, which is thicker than the insertion port 1222, includes a first surface a, a second surface b, and a third surface c. The first surface a and the third surface c are arranged opposite to each other, and the second surface b connects the first surface a and the third surface c. Grooves are provided on both the first surface a and the third surface c, and these grooves form a mounting cavity 1221a. The heating element 121 is fitted to the second surface b. The grooves and the insertion port 1222 thereby realize the installation and fixation of the heating element 121 (e.g., Figure 7 As shown, Figure 7 yes Figure 4 (A schematic diagram of the structure of the mounting cavity in the heating element assembly according to one embodiment); or, a groove is provided on the second surface b, which forms a mounting cavity 1221a, and the heating element 121 is fitted to the first surface a and the third surface c. The groove and the insertion port 1222 are used to install and fix the heating element 121 (e.g. Figure 8 As shown, Figure 8 yes Figure 4 (A schematic diagram of another embodiment of the mounting cavity in the heating element assembly). It can be understood that the specific arrangement of the mounting cavity 1221a can be designed as needed.

[0068] Please see Figure 9 , Figure 9 yes Figure 3 A schematic diagram of the assembly method of the heating element and the base in the heating element assembly.

[0069] The heating element 121 also includes two electrodes 1213, which are disposed on both sides of the heating element 1212. The electrodes 1213 are electrically connected to the heating element 1212, and the heating element 1212 is electrically connected to the host 2 through the electrodes 1213. The electrodes 1213 can be entirely disposed in the blank area of ​​the heating element 121, or at least partially disposed in the blank area of ​​the heating element 121, as long as the continuity and stability of the electrical connection are ensured. In this embodiment, the electrodes 1213 are exposed through the first connecting hole 1221 (e.g., Figure 9 As shown in the figure, this configuration allows for electrical connection between the electrode 1213 and the host 2 without the need to drill holes in the base 122. Furthermore, apart from the first connecting hole 1221, no other holes are provided on the base 122, which helps ensure the strength of the base 122 and thus improves the strength of the heating element 121.

[0070] Please see Figure 10 , Figure 10 yes Figure 3 A schematic diagram of another assembly method of the heating element and the base in the heating element assembly.

[0071] The heating element 121 also includes two electrodes 1213, which are disposed on both sides of the heating element 1212. The electrodes 1213 are electrically connected to the heating element 1212, and the heating element 1212 is electrically connected to the host 2 through the electrodes 1213. In this embodiment, the electrodes 1213 are not exposed through the first connecting hole 1221 (e.g., Figure 10 As shown in the figure, the electrode 1213 is covered by the base 122. A through hole 1213a is provided in the base 122 at the position corresponding to the electrode 1213 to expose the electrode 1213 and facilitate the electrical connection between the electrode 1213 and the host 2.

[0072] See Figure 3 An annular rib 1225 is provided on the surface of the base 122, and the annular rib 1225 surrounds the first connecting hole 1221. Optionally, two annular ribs 1225 are provided at intervals on the surface of the base 122. When the material of the base 122 is silicone, fluororubber, or other materials that can achieve sealing, providing annular ribs 1225 on the surface of the base 122 changes the surface seal to a line seal, reducing the risk of seal failure caused by uneven pressing.

[0073] See also Figure 2 The atomizer 1 also includes a conductor 17, which is fixed to the atomizing base 112. One end of the conductor 17 is electrically connected to the electrode 1213 of the heating element 121, and the other end is used to electrically connect to the main unit 2 so that the heating element 121 can work. The conductor 17 can be a spring pin or a spring sheet, which makes elastic contact with the electrode 1213 to avoid squeezing the heating element 121.

[0074] The atomizer 1 also includes a sealing top cover 19. The sealing top cover 19 is disposed on the surface of the atomizing top seat 111 near the liquid storage chamber 13, and is used to seal the liquid storage chamber 13 with the atomizing top seat 111 and the air outlet channel 14 to prevent leakage. Optionally, the sealing top cover 19 is made of silicone.

[0075] Please see Figures 11-13 , Figure 11 This is a schematic diagram of the second embodiment of the heating element assembly in the atomizer provided in this application. Figure 12 This is another structural schematic diagram of the heating element assembly in the atomizer provided in this application, Figure 13 yes Figure 12 A schematic cross-sectional view of the heating element assembly along the BB direction.

[0076] Figure 11 and Figure 12 The provided heating element assembly 12 and Figure 4 The difference in the provided heating element assembly 12 is that the base 122 has a different structure. The base 122 adopts a split structure and is assembled together during use. Figure 11 andFigure 12 The structure of the heating body 121, the material of the base 122 and the structure of the heating body assembly 12 provided by the present application are the same as those of the first embodiment of the heating body assembly 12, and will not be described again. Figure 4 The structure of the heating body 121, the material of the base 122 and the structure of the heating body assembly 12 provided by the present application are the same as those of the first embodiment of the heating body assembly 12, and will not be described again.

[0077] In the second embodiment of the heating body assembly 12, the base 122 comprises a first sub-base 1223 and a second sub-base 1224; the first sub-base 1223 and the second sub-base 1224 cooperatively form the first communication hole 1221 and the mounting cavity 1221a, and the heating body 121 is arranged in the mounting cavity 1221a.

[0078] The first sub-base 1223 is provided with a first connecting structure (not shown in the figure), and the second sub-base 1224 is provided with a second connecting structure (not shown in the figure); the first connecting structure and the second connecting structure are cooperatively arranged, and the first sub-base 1223 and the second sub-base 1224 are detachably connected through the first connecting structure and the second connecting structure. Optionally, one of the first connecting structure and the second connecting structure is a clamping hook, and the other is a clamping groove. Optionally, one of the first connecting structure and the second connecting structure is a fixing hole, and the other is a fixing column. Optionally, the first connecting structure and the second connecting structure are both magnetic attraction members.

[0079] In an embodiment, as shown in Figure 11 The first sub-base 1223 and the second sub-base 1224 are arranged in a stacked manner. The heating body 121 divides the first communication hole 1221 into a first sub-communication hole 1221b and a second sub-communication hole 1221c; the first sub-communication hole 1221b is located on the first sub-base 1223, and the second sub-communication hole 1221c is located on the second sub-base 1224; the atomizing surface of the heating body 121 is exposed through the first sub-communication hole 1221b, and the liquid suction surface of the heating body 121 is exposed through the second sub-communication hole 1221c. A first groove (not shown in the figure) is formed on the surface of the first sub-base 1223 close to the second sub-base 1224, and the surface of the second sub-base 1224 close to the first sub-base 1223 is a flat surface; the first groove and the surface of the second sub-base 1224 close to the first sub-base 1223 cooperatively form the mounting cavity 1221a; or, a second groove (not shown in the figure) is formed on the surface of the second sub-base 1224 close to the first sub-base 1223, and the surface of the first sub-base 1223 close to the second sub-base 1224 is a flat surface; the second groove and the surface of the first sub-base 1223 close to the second sub-base 1224 cooperatively form the mounting cavity 1221a; or, a first groove is formed on the surface of the first sub-base 1223 close to the second sub-base 1224, and a second groove is formed on the surface of the second sub-base 1224 close to the first sub-base 1223; the first groove and the second groove cooperatively form the mounting cavity 1221a.

[0080] In another embodiment, as shown inFigure 12 and Figure 13 As shown in FIG. 12, the first sub-base 1223 is arranged side by side with the second sub-base 1224, the first sub-base 1223 is provided with a first opening 1223a at one end close to the second sub-base 1224, the second sub-base 1224 is provided with a second opening 1224a at one end close to the first sub-base 1223, and the first opening 1223a and the second opening 1224a cooperate to form a first communication hole 1221. A third groove 1223b is arranged on the bottom wall of the first opening 1223a, and a fourth groove 1224b is arranged on the bottom wall of the second opening 1224a. The third groove 1223b and the fourth groove 1224b cooperate to form a mounting cavity 1221a.

[0081] Please refer to Figure 14 , Figure 14 FIG. 12 is a structural schematic diagram of a third embodiment of the heating element assembly in the atomizer provided by the present application.

[0082] Figure 14 The heating element assembly 12 provided by the present application is different from the heating element assembly 12 provided by the first embodiment in that the heating element 121 is arranged in the base 122. Figure 4 The heating element assembly 12 provided by the present application is different from the heating element assembly 12 provided by the first embodiment in that the heating element 121 is arranged in the base 122. Figure 14 The structure of the heating element 121 in the heating element assembly 12 provided by the present application and the material of the base 122 are the same as those of the heating element assembly 12 provided by the first embodiment, and will not be described again. Figure 4 The structure of the heating element 121 in the heating element assembly 12 provided by the present application and the material of the base 122 are the same as those of the heating element assembly 12 provided by the first embodiment, and will not be described again.

[0083] Specifically, the base 122 covers the electrode 1213 of the heating element 121. Two spring sheets 21 and two lead wires 22 are arranged in the base 122. The two spring sheets 21 are arranged on the two sides of the first communication hole 1221, and the two lead wires 22 are arranged on the two sides of the first communication hole. The lead wire 22 is arranged on the side of the spring sheet 21 away from the first communication hole 1221. One end of the lead wire 22 is connected with the spring sheet 21, and the other end of the lead wire 22 is exposed to the outside of the base 122 to be electrically connected with the conducting member 17, thereby realizing electrical connection with the host 2. Specifically, the spring sheet 21 and the lead wire 22 can be arranged in the base 122 by injection molding. The other end of the lead wire 22 can be arranged in a suspended manner or can be attached to the outer surface of the base 122. For example, the other end of the lead wire 22 extends to the surface of the base 122 on the side of the atomization face, so that the lead wire 22 is easily electrically connected with the contact pin of the host 2. The electrode 1213, the spring sheet 21 and part of the lead wire 22 are arranged in the base 122, for example, by injection molding, which can prevent corrosion by the aerosol generating substrate or the aerosol.

[0084] Part of the surface of the spring sheet 21 is exposed, so that after the heat generating body 121 is inserted from the insertion port 1222, the electrode 1213 of the heat generating body 121 can contact the exposed surface of the spring sheet 21. When the heat generating body 121 is detachably arranged in the base 122, the electrode 1213 of the heat generating body 121 is electrically connected with the spring sheet 21.

[0085] In an embodiment, the spring sheet 21 is arranged in the annular groove arranged on the hole wall of the first communication hole 1221 (the annular groove forms the mounting cavity 1211a), and the spring sheet 21 is U-shaped, and the two ends of the spring sheet 21 are arranged on the opposite two sides of the annular groove respectively, so that no matter the heat generating body 121 is inserted into the base 122 from the insertion port 1222 in the forward direction or in the reverse direction, the electrode 1213 of the heat generating body 121 can contact the spring sheet 21 (as shown in Figure 15 , Figure 15 is Figure 14 the structure schematic diagram of another embodiment of the spring sheet in the heat generating body assembly provided by the application).

[0086] In other embodiments, the lead 22 can also be omitted, one end of the spring sheet 21 is embedded in the base 122, and the other end extends out of the base 122 for connecting the conducting member 17. Preferably, the other end of the spring sheet 21 extends to the surface of the base 122 close to the power supply assembly, so that the conducting member 17 can directly abut against the spring sheet 21 (as shown in Figure 16 , Figure 16 is Figure 14 the structure schematic diagram of still another embodiment of the spring sheet in the heat generating body assembly provided by the application).

[0087] It can be understood that the base 122 in the heat generating body assembly 12 of Figure 14 may also adopt a split structure, and specific reference can be made to the arrangement of the base 122 in the heat generating body assembly 12 provided by Figures 11-13 , which is different from Figures 11-13 the heat generating body assembly 12 provided by the application in that the spring sheet 21 and the lead 22 are embedded in the base 122, and the arrangement of the spring sheet 21 and the lead 22 is described above.

[0088] The above description is only an embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure or equivalent process transformation using the content of the specification and the drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the application.

Claims

1. A heating element assembly, characterized in that, include: A heating element includes a sheet-like substrate; the sheet-like substrate is a dense substrate with a thickness of less than or equal to 1 mm, and the sheet-like substrate is provided with a plurality of first micropores; or the sheet-like substrate is a porous ceramic sheet with a thickness of less than or equal to 2 mm; the sheet-like substrate includes a liquid-absorbing surface and an atomizing surface opposite to the liquid-absorbing surface, and the heating element further includes a heating element disposed on the atomizing surface; The base has a first connecting hole; the base is integrally formed. The heating element is embedded in the base and spans the first connecting hole; the heating element is detachably connected to the base. An insertion port is provided on the side wall of the base, and the insertion port communicates with the first communicating hole; the insertion port is configured to cooperate with the heating element so that the heating element is placed inside the base through the insertion port.

2. The heating element assembly according to claim 1, characterized in that, The first connecting hole has a mounting cavity on its wall, and the heating element is disposed in the mounting cavity.

3. The heating element assembly according to claim 2, characterized in that, The mounting cavity is an annular groove provided on the wall of the first connecting hole. The periphery of the heating element is provided in the mounting cavity, and the middle part of the heating element is suspended through the first connecting hole.

4. The heating element assembly according to claim 1, characterized in that, The heating element is positioned on the centerline of the thickness direction of the base.

5. The heating element assembly according to claim 1, characterized in that, The sheet-like substrate is the dense substrate; the first micropore is a through-hole penetrating the liquid absorption surface and the atomizing surface.

6. The heating element assembly according to claim 1, characterized in that, The base is made of silicone, fluororubber, plastic, or resin.

7. An atomizer, characterized in that, It includes a liquid storage chamber and a heating element assembly; the liquid storage chamber is used to store a liquid aerosol generation matrix, and the heating element assembly is used to atomize the aerosol generation matrix; the heating element assembly is the heating element assembly according to any one of claims 1-6.

8. An electronic atomizing device, characterized in that, It includes an atomizer and a main unit, wherein the atomizer is the atomizer as described in claim 7, and the main unit controls the operation of the atomizer.

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