WO2022062341A1

WO2022062341A1 - Heating assembly and aerosol forming device

Info

Publication number: WO2022062341A1
Application number: PCT/CN2021/082417
Authority: WO
Inventors: 张琳; 王守平; 张幸福; 西克宇; 孙来; 谷岩
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2020-09-23
Filing date: 2021-03-23
Publication date: 2022-03-31
Also published as: EP4218439A1; JP2023532220A; CN114246370A; EP4218439A4; KR20230009985A

Abstract

A heating assembly and an aerosol forming device. The heating assembly (30) comprises a base plate (31) and a heating body (32), wherein the heating body (32) is embedded in the base plate (31), and the heating body (32) comprises a first extension portion (321) and a second extension portion (322) connected to one end of the first extension portion (321), which are arranged spaced apart from each other; and the base plate (31) and the heating body (32) are used for being at least partially inserted into an aerosol forming substrate and generating heat to heat the aerosol forming substrate when the first extension portion (321) and the second extension portion (322) are powered on. The heating body (32) in the heating assembly (30) can be directly inserted into the aerosol forming substrate, and has a good stability.

Description

Heating component and aerosol forming device

【Technical field】

The invention relates to the technical field of heat-not-burn smoking equipment, in particular to a heating component and an aerosol forming device.

【Background technique】

As a substitute for cigarettes, electronic cigarettes have attracted more and more attention and favor because of their advantages of safety, convenience, health, and environmental protection; for example, heat-not-burn electronic cigarettes, also known as heat-not-burn aerosol-forming devices .

Existing heat-not-burn aerosol-forming devices are usually heated by tubular peripheral heating or central embedded heating; tubular peripheral heating means that the heating tube surrounds the aerosol-forming substrate (such as tobacco) to heat the aerosol-forming substrate. For heating, center-embedded heating is to insert a heating element into the aerosol-forming substrate to heat the aerosol-forming substrate. Among them, heating components are widely used because of their simple manufacture and convenient use. The current heating components mainly use ceramics or metal treated with insulation as the substrate, and then print or coat the resistance heating circuit on the substrate, and fix the resistance heating circuit on the substrate after high temperature treatment.

However, since the resistance heating circuit on the existing heating element is a thin film that is later printed or coated on the ceramic substrate, in the process of inserting the heating element into the aerosol-forming substrate for many times, due to the curved shape of the substrate, the resistance of the resistance is reduced. When the heating circuit is heated at a high temperature, it is easy to fall off the substrate, and the stability is poor. During the heating process, the resistance heating circuit is only in contact with the aerosol on the side of the substrate where the resistance heating circuit is arranged to form the matrix, and does not contact the aerosol on the back of the substrate. Substrate contact is formed, resulting in poor heating uniformity of the aerosol-forming substrate.

[Content of the invention]

The present application provides a heating component and an aerosol forming device, the heating component can solve the problem that the resistance heating circuit on the existing heating component is easily detached from the substrate and has poor stability when it is heated at a high temperature.

In order to solve the above technical problem, a technical solution adopted in the present application is to provide a heating component. The heating assembly includes a base plate and a heating body; wherein the heating body is embedded in the base plate, and the heating body comprises a first extension part arranged at intervals and a second extension part connected to one end of the first extension part, and the base plate and the heating body are used for at least part of The aerosol-forming substrate is inserted and heat is generated to heat the aerosol-forming substrate when the first extension and the second extension are energized.

In order to solve the above-mentioned technical problems, another technical solution adopted in the present application is: to provide an aerosol forming device, the aerosol forming device includes a housing, a heating component and a power supply component arranged in the housing; The component connection is used to supply power to the heating component, and the heating component is the heating component mentioned above.

In the heating component and the aerosol forming device provided by the present application, the heating component is provided with a substrate and a heating body, so that the heating body heats the tobacco in the aerosol forming matrix after the heating body is inserted into the aerosol forming matrix; It is arranged to include a first extension part and a second extension part connected to the first extension part, and the first extension part and the second extension part of the base plate and the heating body are used for at least partially inserting the aerosol forming matrix and generating heat when energized The matrix is formed by heating the aerosol; compared with the existing heating element that is silk-screened on the ceramic substrate, the substrate and heating element of the present application can be directly and independently inserted into the aerosol to form the matrix, and there is no occurrence of the heating element from the heating element during high temperature heating. The problem of failure caused by falling off on the ceramic substrate greatly improves the stability of the heating element; in addition, by setting the substrate, the heating element is embedded in the substrate to improve the strength of the heating element, so that the heating element is inserted into the aerosol to form a matrix During the process, the substrate can be subjected to force, which effectively avoids the problem of bending of the heating element due to force.

【Description of drawings】

FIG. 1a is a schematic structural diagram of a heating component provided by an embodiment of the present application;

FIG. 1b is a schematic structural diagram of a heating body provided by an embodiment of the application;

Fig. 1c is a schematic plan view of a heating element provided by a specific embodiment of the present application;

Fig. 1d is a schematic plan view of a heating component provided by another specific embodiment of the present application;

FIG. 1e is a schematic plan view of a heating assembly provided by another specific embodiment of the present application;

FIG. 2 is a schematic disassembly diagram of the structure shown in FIG. 1a according to an embodiment of the present application;

3a is a schematic disassembly diagram of the structure shown in FIG. 1a provided by another embodiment of the present application;

FIG. 3b is a schematic diagram of inserting a heating element into an aerosol atomization substrate according to an embodiment of the application;

4 is a schematic diagram of a position between a substrate and a heating body according to an embodiment of the present application;

5 is a schematic diagram of disassembly of a heating assembly provided by a specific embodiment of the present application;

FIG. 6 is a schematic disassembly diagram of a heating assembly provided by another specific embodiment of the present application;

7 is a side view of a heating element provided by an embodiment of the present application;

FIG. 8 is a schematic view of the size of a heating component provided by an embodiment of the present application;

Fig. 9 is the C-direction view of the structure shown in Fig. 8;

FIG. 10a is a schematic structural diagram of a heating component provided by another embodiment of the present application;

FIG. 10b is a schematic diagram of inserting a heating element into an aerosol atomization substrate according to another embodiment of the present application;

FIG. 11 is a schematic structural diagram of a heating assembly provided by another embodiment of the present application;

FIG. 12 is a schematic view of the size of a heating component provided by another embodiment of the present application;

FIG. 13 is a schematic structural diagram of the mounting seat provided by an embodiment of the application after being assembled with the heating component;

Figure 14 is a schematic diagram of disassembly of the product corresponding to Figure 13;

FIG. 15 is a schematic structural diagram of a mounting seat and a heating component after being assembled according to another embodiment of the application;

Fig. 16 is the dismantling schematic diagram of the product corresponding to Fig. 15;

FIG. 17 is a front view of the mounting seat provided by an embodiment of the application after being assembled with the heating component;

FIG. 18 is a schematic structural diagram of an aerosol forming apparatus according to an embodiment of the present application.

【detailed description】

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

The terms "first", "second" and "third" in this application are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", "third" may expressly or implicitly include at least one of that feature. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. All directional indications (such as up, down, left, right, front, rear...) in the embodiments of the present application are only used to explain the relative positional relationship between components under a certain posture (as shown in the accompanying drawings). , motion situation, etc., if the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

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 present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Please refer to FIGS. 1a to 3a, wherein, FIG. 1a is a schematic structural diagram of a heating element 30 provided by an embodiment of the application; FIG. 2 is a schematic disassembly diagram of the structure shown in FIG. 1a provided by an embodiment of the application; A disassembled schematic diagram of the structure shown in FIG. 1a provided by another embodiment of the present application; in this embodiment, a heating component 30 is provided, and the heating component 30 is specifically used to insert and heat the aerosol-forming substrate; In a specific embodiment, the heating component 10 can be used for inserting tobacco to heat the tobacco, and the following embodiments are all taken as an example; it can be understood that, in this embodiment, the aerosol-forming substrate can specifically be tobacco.

Specifically, the heating element 30 includes a substrate 31 and a heating element 32 embedded in the substrate 31 .

Specifically, the substrate 31 may be a rectangular substrate 31 having a first end M and a second end N opposite to the first end M; when the heating element 30 is inserted into the aerosol-forming matrix, the substrate 31 The second end N of the substrate 31 is first inserted into the aerosol-forming substrate, therefore, in order to facilitate the insertion of the heating element 30 into the aerosol-forming substrate, the second end N of the substrate 31 can be specifically set as a pointed end, that is, a triangular structure, and the tip of the The included angle formed by two adjacent sides may be 45 degrees to 90 degrees, for example, 60 degrees.

Specifically, the material of the substrate 31 can be insulating ceramics, the thermal conductivity of the substrate 31 made of insulating ceramics can be 4-18W/(mk), the bending strength can be above 600MPa, the thermal stability can exceed 450 degrees, and the fire resistance can be Can be higher than 1450 degrees. Of course, in other embodiments, the substrate 31 may also be an insulating metal, such as a metal substrate provided with an insulating coating, so as to improve the strength of the heating element 30 and prevent the heating element 30 from being bent or broken, while enabling The heat generated by the heating element 32 is diffused to the tobacco in contact with the substrate 31, thereby improving the uniformity of heating of the tobacco in the aerosol-forming substrate. The material of the substrate 31 can also be a new type of composite zirconia material. The new type of composite zirconia substrate 31 can keep heat and transfer heat generated by the heating element 32 to provide the energy utilization rate of the heating element 30 . The ceramic substrate 31 may also be a ZTA material (zirconia toughened alumina ceramic) or MTA (mullite and alumina composite).

In a specific embodiment, the substrate 31 is provided with an accommodating groove 311 along its length direction, and at least part of the heating element 32 is accommodated in the accommodating groove 311, so that when the heating element 30 is inserted into the aerosol-forming matrix, The stress on the substrate 31 prevents the heating element 32 from being bent due to direct stress.

Specifically, the substrate 31 has a first surface C ₁ and a second surface D ₁ disposed opposite to the first surface C ₁ , and the accommodating groove 311 can specifically be a through groove penetrating the first surface C ₁ and the second surface D ₁ , the heating body 32 is specifically accommodated in the through groove, and the upper and lower surfaces of the heating body 32 are flush with the _first surface _C1 and the second surface D1 of the substrate 31; wherein, by setting the accommodating groove 311 into a through groove structure , the heating element 32 accommodated in the accommodating groove 311 can be exposed from the side of the _first surface _C1 and the side of the second surface D1 of the substrate 31 respectively, and then the heating element 32 can be inserted into the aerosol to form Both surfaces of the heating body 32 behind the matrix can be in direct contact with the tobacco in the aerosol-forming matrix, which not only has a high energy utilization rate, but also has a relatively uniform heating and a clear boundary of the preset temperature field.

In other embodiments, the upper and lower surfaces of the heating element 32 may be slightly protruded from the first surface C ₁ and the second surface D ₁ of the substrate 31 or slightly protruded from the first surface C 1 and the second surface D 1 of the substrate 31 according to the actual needs of the temperature field during heating. It is lower than the first surface C ₁ and the second surface D ₁ of the substrate 31, so that when the upper and lower surfaces of the heating element 32 slightly protrude from the first surface C ₁ and the second surface C ₂ of the substrate 31, the heating element 32 can be relatively The high temperature is concentrated on the upper and lower surfaces of the heating body 32 and the upper and lower surfaces of the heating body 32 are baked at a higher temperature to contact the tobacco, so that the smoke can meet the relatively strong demand; while the upper and lower surfaces of the heating body 32 are slightly lower than the first surface of the substrate 31. When C ₁ and the second surface C ₂ , due to the barrier effect of the substrate 31, the upper and lower surfaces of the heating element 32 can be loosened in contact with the tobacco, and the baking temperature of the heating element 32 to the tobacco can be slightly reduced, so as to satisfy the requirement that the smoke is softer demand.

Wherein, the heating element 32 can be a self-supporting structure, that is, the heating element 32 can exist independently without being attached to other carriers; the heating element 32 of the self-supporting structure is more efficient than the existing printing or coating on the ceramic substrate. The formed resistance heating film layer can effectively avoid the problem that the heating element 32 falls off from the ceramic substrate or the metal substrate when the heating element 32 is heated at a high temperature or when the substrate is deformed, and greatly improves the stability of the heating element 30; and because the heating element 32 It is a self-supporting structure and can be exposed from one side of the first surface C ₁ and one side of the second surface D ₁ of the substrate 31 at the same time, which effectively improves the heat utilization rate and the heating uniformity.

Wherein, the material of the heating element 32 can be specifically conductive ceramics. Compared with the existing metal material, the heating element 32 made of the conductive ceramic material has higher conductivity efficiency, and the temperature generated by the heat generation is relatively uniform; and the conductive ceramic heating element 32 has a The power can be adjusted and designed between 3-4 watts, the conductivity can reach 1* ^10-4 ohms and 1* ^10-6 ohms, suitable for low-voltage startup, easy to control and design the power immediately, and the flexural strength of conductive ceramics can be greater than 40MPa , the fire resistance can be higher than 1200 ℃.

Specifically, the heating element 32 made of the conductive ceramic can be made of a material with an electromagnetic heating wavelength of mid-infrared wavelength, which is conducive to atomizing e-liquid and improving the taste; in addition, the crystal phase structure of the conductive ceramic heating element 32 is stable at high temperature Oxide ceramics of this type have good fatigue resistance, high strength and high density, so that the volatilization of harmful heavy metals and dust problems can be effectively avoided, and the service life of the heating element 32 is greatly improved.

The above-mentioned use of the whole piece of ceramic heating element 32 can reduce the hot spot area of the highest temperature, eliminate the risk of fatigue cracking and fatigue resistance increase, and have good consistency; and due to the high strength and microcrystalline structure of the ceramic heating material. The surface of the heating element 32 is easy to clean and not easy to adhere to, and the surface of the heating element 32 is easy to clean and difficult to adhere; in addition, the ceramic heating element 32 is made by the ceramic production process. The ceramic process mainly includes raw material mixing, molding and sintering, and cutting processes, and the process is relatively simple and easy to control. , the cost is lower, which is conducive to the promotion of production and the improvement of economic benefits.

Specifically, the heating element 32 made of the conductive ceramics specifically includes main components and crystal components; wherein, the main components are used to conduct electricity and make the conductive ceramics form a certain resistance, and the main components may specifically be manganese, strontium, lanthanum, tin, antimony , one or more of zinc, bismuth, silicon, and titanium; the crystal component, that is, the main material of the ceramic material, is mainly used to form the shape and structure of the conductive ceramic, and the crystal component can specifically be lanthanum manganate, strontium manganate One or more of lanthanum, tin oxide, zinc oxide, antimony oxide, bismuth oxide, silicon oxide, and yttrium oxide. In other embodiments, the heating element 32 may also be made of a metal alloy or a ceramic alloy made of an iron-silicon alloy or an iron-silicon aluminum alloy.

Specifically, referring to FIG. 1b, FIG. 1b is a schematic structural diagram of a heating body provided by an embodiment of the application; in an embodiment, the heating body 32 specifically includes a first extension portion 321 and a first extension portion 321 connected to the Two extensions 322, and in specific embodiments, both the first extension 321 and the second extension 322 are used to at least partially insert into the aerosol-forming substrate and generate heat when energized to heat the aerosol-forming substrate; it is to be understood that , the first extension part 321 and the second extension part 322 can be inserted into the aerosol forming matrix independently and directly, while the existing heating element silk-screened on the ceramic substrate needs to be inserted into the aerosol with the help of ceramic or insulating treated metal substrate. The aerosol-forming substrate itself cannot be directly inserted into the aerosol-forming device, and the first extension portion 321 and the second extension portion 322 provided in the present application will not deform the substrate 31 or fall off the substrate 31 when heated at high temperature. The problem that leads to failure greatly improves the reliability of the heating element 10 .

Specifically, the opposite surfaces of the first extension portion 321 and the second extension portion 322 for inserting the aerosol-forming substrate are both in contact with the aerosol; The aerosol is inserted into the matrix, which does not need to use a substrate. Therefore, at least two opposite surfaces of the first extension portion 321 and the second extension portion 322 of the heating element 32 can be directly contacted with the aerosol, thereby greatly improving the utilization of heat. rate and heating efficiency.

In another embodiment, referring to FIGS. 1a to 3a , the heating element 32 further includes a third extension 323 for fully inserting and heating the aerosol-forming substrate; specifically, in this embodiment, the first extension 321 and the second extension part 322 are arranged side by side and spaced apart, and the close ends of the first extension part 321 and the second extension part 322 are connected by the third extension part 323; wherein, the first extension part 321 and the second extension part 322 The close end specifically refers to the end that is first in contact with the aerosol-forming substrate and inserted; it can be understood that the first extension portion 321, the second extension portion 322 and the third extension portion 323 are formed into a substantially U-shaped structure; And in a specific embodiment, the first extension part 321 , the second extension part 322 and the third extension part 323 are integrally formed and sintered with conductive ceramics; The groove 328 is formed to obtain the heating element 32 having the first extension portion 321 , the second extension portion 322 and the third extension portion 323 . It can be understood that the heating element 32 can also be directly sintered and formed.

The shapes of the first extension portion 321 , the second extension portion 322 and the third extension portion 323 are not limited, and can be designed according to actual needs. Specifically, the first extension portion 321 and the second extension portion 322 can be elongated plates; since the base plate 31 has a pointed end, the third extension portion 323 can be an arc-shaped plate, and the radius of the inner circle can be 0.5 mm. Specifically, the radius of the outer ring may be 2 mm; wherein, the outer ring refers to the position where the third connecting portion 323 of the heating body 32 contacts the substrate 31 . The advantage of using the arc-shaped plate is that the connection stress with the first extension part 321 and the second extension part 322 is small, and the overall structural strength is better.

In this embodiment, the third extension portion 323 is substantially V-shaped. In other embodiments, the third extension part 323 may also be a U-shaped or isosceles trapezoid, or the width may go from an end close to the first extension part 321 and the second extension part 322 to a distance away from the first extension part 321 and the second extension part 322 for other shapes with a decreasing direction. In this embodiment, the first extension part 321 , the second extension part 322 and the third extension part 323 define a cutout 328 , and the cutout 328 is a rectangle with the same width or a protrusion is formed at one end of the rectangle close to the third extension part 323 Specifically, the slot 328 is an axisymmetric structure, its length direction is parallel to the direction of its central axis, the first extension part 321 and the second extension part 322 are arranged side by side at intervals and the length direction is parallel to the slot In the direction of the central axis of 328 , the width directions of the first extension portion 321 , the second extension portion 322 and the third extension portion 323 are perpendicular to the direction of the central axis of the slot 328 . The heating element 32 is a structure symmetrical with respect to the central axis of the central axis of the slot 328, that is, the first extension part 321, the second extension part 322 and the third extension part 323 are all symmetrical with respect to the central axis of the slot 328. The structure makes the first extension part 321 , the second extension part 322 and the third extension part 323 on both sides of the slot 328 have the same temperature at the corresponding positions in the width direction, which makes the smoke taste better.

In other embodiments, refer to FIG. 1c, which is a schematic plan view of a heating component provided by a specific embodiment of the application; the first extension part 321 and the second extension part 322 are also arranged side by side, but the width of the slot 328 may be A centrally symmetric structure that gradually decreases from the end away from the third extension portion 323 to the end close to the third extension portion 323 , the outer sides of the corresponding first extension portion 321 and the second extension portion 322 are parallel, and the widths from the end away from the third extension portion 323 are parallel. One end of the 323 gradually increases toward the end close to the third extension portion 323 . In this way, the resistance of the end away from the third extension portion 323 is slightly increased to balance the resistance with the third extension portion 323 (the resistance of the third extension portion 323 is larger), so that the overall heating is more balanced.

In other embodiments, see FIG. 1 d , which is a schematic plan view of a heating element provided by another specific embodiment of the present application; The enlarged center-symmetric structure, the outer sides of the corresponding first extension part 321 and the second extension part 322 are parallel, and the width of the first extension part 321 and the second extension part 322 is from the end away from the third extension part 323 to the end close to the third extension part 323 . One end of the three extension parts 323 is gradually reduced, so that the resistance near the upper end of the heating element 32 is larger, so as to meet the design requirements of the heating method in which the high temperature of the heating element 32 is concentrated in the upper part of the heating element 32 .

In other embodiments, refer to FIG. 1e, which is a schematic plan view of a heating component provided by another specific embodiment of the present application; the first extension part 321 and the second extension part 322 are rectangular, but are not arranged side by side and parallel, but are At a certain angle, for example, 3-10 degrees, the width of the slot 328 can be a centrally symmetric structure that gradually decreases from the end away from the third extension portion 323 to the end close to the third extension portion 323 .

Please refer to FIG. 2 , the accommodating groove 311 has an open end and a closed end, and the accommodating groove 311 specifically extends from the first end M of the substrate 31 to a position close to the second end N; and in one embodiment, One end of the accommodating groove 311 away from the second end N of the substrate 31 is an open end, and one end of the accommodating groove 311 close to the second end N of the substrate 31 is a closed end. By setting one end of the accommodating groove 311 as an open end It can prevent the stress release problem when the heating element 32 and the substrate 31 are co-sintered. For example, when the opening is not provided, the slight stress of the heating element 32 may squeeze the substrate 31. In addition, when the first end M is an open end, it is also easy to conduct electricity. Ceramic connection electrode leads (not shown). In this embodiment, the accommodating groove 311 is specifically a U-shaped structure; in this embodiment, the third extension 323 of the heating element 32 is disposed at the position of the accommodating groove 311 close to the closed end, and the substrate 31 is close to the closed end. The location has a pointed tip to facilitate insertion into the aerosol-forming matrix.

In another embodiment, referring to FIG. 4 , FIG. 4 is a schematic diagram of the position between the substrate and the heating body according to an embodiment of the present application, the end of the through groove away from the second end N of the substrate 31 can also be a closed end, One end of the through groove close to the second end N of the substrate 31 is an open end; in this embodiment, the third extension 323 of the heating element 32 can extend out from the open end of the through groove and form a tip. The specific structure can be seen in Fig. 4. Of course, in other embodiments, both ends of the through slot may also be closed ends, that is, the accommodating slot 311 is a through hole.

Specifically, referring to FIG. 1a and FIG. 2 , the heating element 32 can be a plate-type structure, which can be a ^heating plate made of conductive ceramics. It can be 2 watts, and the resistance can be 0.71 ohms; specifically, the heating plate can be a single series connection type, that is, the first extension part 321 , the third extension part 323 and the second extension part 322 are connected in series (slotted in the middle).

In one embodiment, refer to FIGS. 5 and 6 , wherein FIG. 5 is a schematic diagram of disassembly of a heating assembly provided by a specific embodiment of the application; FIG. 6 is a disassembly of a heating assembly provided by another specific embodiment of the application. Schematic diagram; an adhesive layer 34 is also provided at the adjoining position of the substrate 31 and the heating body 32 to enhance the adhesive force between the heating body 32 and the substrate 31; The substrate 31 and the heating element 32 are connected together by co-firing. Specifically, the thickness of the adhesive layer 34 may be 0.05-0.1 mm; of course, in other embodiments, a seamless splicing type may also be used directly between the substrate 31 and the heating body 32 .

In the specific implementation process, the periphery of the sintered heating element 32 is coated and bonded with glass ceramics, and then the heating element 32 is placed in the accommodating groove 311 of the sintered substrate 31, and then the substrate 31 and the heating element 32 Secondary sintering is performed together to embed the heating element 32 into the accommodating groove 311 of the substrate 31 .

1a to FIG. 5, in a specific embodiment, the heating component 30 further includes a first electrode 33a and a second electrode 33b; one of the first electrode 33a and the second electrode 33b is disposed on the first extension portion 321 , the other electrode is arranged on the second extension part 322, and in the specific use process, the first electrode 33a and the second electrode 33b are respectively electrically connected to the power supply assembly through electrode leads, so that the heating body 32 is electrically connected to the power supply assembly. Specifically, referring to FIG. 3 a , the first electrode 33 a and the second electrode 33 b are respectively disposed on the same side surface of one end of the first extension part 321 and the second extension part 322 away from the third extension part 323 . In a specific embodiment, when the substrate 31 is a metal substrate, the first electrode 33a and the second electrode 33b can also extend to the surface of the metal substrate 31, so that when the power supply is connected, the metal substrate 31 It can generate heat, thereby improving the heating efficiency.

In a specific embodiment, referring to FIGS. 2 , 5 and 6 , the first surface C ₂ of one of the first extension portion 321 and the second extension portion 322 is opposite to the first surface C ₂ The provided _second surfaces D2 are provided with first electrodes 33a, and the _second surfaces D2 provided opposite to the first surface _C2 of the other extension are provided with _second electrodes 33b, that is, The numbers of the first electrodes 33a and the second electrodes 33b are both two. When connecting the first electrode 33a and the second electrode 33b to two electrode leads, one Y-shaped electrode lead can be connected to the first electrode 33a on the two surfaces of the first extension part 321, and the other Y-shaped electrode lead can be connected The shaped electrode lead is connected to the second electrode 33b on the second extension part 322; by arranging the first electrode 33a and the second electrode 33b on the two surfaces, it is not only convenient for welding, but also can increase the heating element with the conductive ceramic as much as possible 32 contact area to reduce the contact resistance, thereby generating less heat when the heating body 32 is energized, reducing the temperature, and simultaneously energizing the two surfaces of the conductive ceramic heating body 32, the two surfaces form the same potential, which is conducive to making The electric field of the conductive components between the two surfaces is uniform, and the heating effect is better; therefore, the mounting seat 40 can be provided at the positions of the first electrode 33a and the second electrode 33b (because the heating element 32 is located at the first electrode 33a and the second electrode 33b. The resistance is small and the heat generation is low), which can prevent the mounting base 40 from being damaged due to high temperature.

Specifically, the first electrode 33a and the second electrode 33b can be formed on the two ends of the first extension part 321 and the second extension part 322 by coating, so as to improve the bonding force between the electrodes and the heating body 32, Thereby, the connection stability between the electrode lead connected to the electrode and the heating body 32 is improved; it can be understood that the ceramic has a microporous structure, and the microporous structure of the ceramic can make the formation of The bonding force between the first electrode 33a and the second electrode 33b and the heating body 32 is strong, thereby greatly improving the bonding force between the first electrode 33a and the second electrode 33b and the heating body 32. Specifically, the above-mentioned coating material can be selected from silver paste. It can be understood that the first electrode 33a and the second electrode 33b can also be formed by depositing a metal film, for example, depositing gold, platinum, copper and other metal materials higher than 1* ^10-6 ohm; the length of the coating can be 6.5 mm. .

In a specific embodiment, refer to FIG. 7 , which is a side view of a heating body provided by an embodiment of the application; the surface of the heating body 32 can also be coated with a protective layer 35, and the protective layer 35 covers the first electrode 33a and the second electrode 33a. The electrode 33b is used to prevent the first electrode 33a, the second electrode 33b and the heating element 32 from being damaged by the e-liquid formed when the tobacco is heated; specifically, the protective layer 35 may be a glass glaze layer. Further, the protective layer 35 can also cover the entire substrate 31, so that the entire heating element 30 has a smooth surface; of course, in other embodiments, the protective layer 35 can also be coated on the entire surface of the substrate 31 and the heating element 32 is close to the substrate. 31 to expose the part of the surface of the heating element 32 away from the substrate 31, thereby improving the smoothness of the surfaces of the substrate 31 and the heating element 32, and enabling the heating element 32 to directly contact the aerosol forming matrix, thereby improving the Heat utilization rate; wherein, the part of the surface of the heating element 32 close to the substrate 31 specifically refers to the surface of the part of the heating element 32 that is close to the connection between the heating element 32 and the substrate 31; the part of the surface of the heating element 32 away from the substrate 31 specifically refers to the heating element The middle part of 32.

Specifically, referring to FIG. 1a , the heating element 32 includes a first heating area A and a second heating area B connected to the first heating area A, wherein the first heating area A is the main atomizer inserted into the aerosol-forming substrate for heating In this way, the substrate 31 and the heating element 32 are at least partially inserted on the aerosol-forming substrate, and the atomization temperature on it is concentrated at 280°C to 350°C, accounting for more than 75% of the area of the atomization area. The second heating area B is The temperature of the main matching section of the heating body 32 is below 150°C; in a specific embodiment, the first electrode 33a and the second electrode 33b are specifically arranged in the second heating area B of the heating body 32 to reduce the temperature of the ceramic heating body 32. The atomization temperature is such that the ratio of the heating temperature of the first heating area A to the heating temperature of the second heating area B of the heating element 32 is greater than 2.

In a specific embodiment, the resistivity of the material of the part of the heating element 32 located in the second heating area B is smaller than the resistivity of the material of the part of the heating element 32 located in the first heating area A, so that the first heating element of the heating element 32 is heated. The temperature of zone A is greater than the temperature of the second heating zone B; at the same time, by setting materials with different resistivities in different heating zones, the temperature of different heating zones can be regulated by the difference in resistivity; specifically, the heating element 32 is located in the first heating zone. The part of the area A and the part of the heating element 32 located in the second heating area B have basically the same main components of the ceramic material and are integrally formed, but the part of the heating element 32 located in the first heating area A and the part of the heating element 32 located in the second heating area B. The proportion of the ceramic material in the parts is different or other components are different, so that the part of the heating element 32 located in the first heating area A and the part of the heating element 32 located in the second heating area B have different resistivities. Compared with the prior art, the first heating area A and the second heating area B use different conductive materials, such as aluminum film and gold film, and the scheme of splicing two different conductive materials can effectively avoid the occurrence of heating elements. 32. The problem of breakage of the conductors of the first heat-generating area A and the second heat-generating area B.

In the heating assembly 30 provided in this embodiment, the substrate 31 and the heating element 32 are arranged to heat the tobacco in the aerosol-forming substrate through the heating element 32 after the aerosol-forming substrate is inserted; meanwhile, the heating element 32 is arranged to be It comprises a first extension part 321 and a second extension part 322 connected to the first extension part 321, and the first extension part 321 and the second extension part 322 of the substrate 31 and the heating body 32 are used for at least partially inserting the aerosol forming matrix and Heat is generated to heat the aerosol-forming substrate when energized; compared with the existing heat-generating body that is silk-printed on a ceramic substrate, the substrate 31 and the heat-generating body 32 of the present application can be directly and independently inserted into the aerosol-forming substrate without appearing The problem that the heating element 32 falls off from the ceramic base during high temperature heating, resulting in failure, greatly improves the stability of the heating element 30; The strength of the heating element 30 enables the heating element 30 to be subjected to force through the substrate 31 during the process of inserting the aerosol to form the matrix, which effectively avoids the problem of the heating body 32 being bent due to the force.

In one embodiment, referring to FIG. 2 and FIG. 3 a , wherein the inner sidewall of the through groove close to the second surface D1 _of the substrate 31 is provided with a first flange that is smaller than the thickness of the heating body 32 in the thickness direction of the heating body 32 . 312, the heating element 32 is specifically overlapped on a surface of the _first flange 312 away from the second surface D1 of the base plate 31 to prevent it from falling off from the through groove of the base plate 31; specifically, a surface of the first flange 312 It is flush with the second surface D1 _of the substrate 31 and can be integrally formed with the substrate 31. In this embodiment, the substrate 31 can be cut according to a preset size by a laser to form the The stepped base plate 31 of the flange 312 can effectively ensure the dimensional accuracy of the product, and can greatly improve the support strength of the first flange 312 .

In a specific embodiment, referring to FIG. 2 , the first flange 312 extends continuously along the circumferential direction of the through groove to the inner wall surface of the entire through groove. It should be noted that the first flange 312 is in the thickness direction of the heating body 32 . The thickness of the heating body 32 is smaller than that of the heating body 32. Specifically, it can be understood that the first flange 312 is arranged around the circumferential direction of the through groove so that the first flange 312 and the through groove have the same shape. A flange 312 is specifically a continuous U-shaped structure.

In a specific embodiment, referring to FIG. 1a and FIG. 2 , the length of the substrate 31 is slightly larger than the length of the heating body 32, and the first heating area A and the second heating area B of the heating body 32 can all be accommodated in the accommodating groove. 311, and the positions corresponding to the inner wall surface of the through groove and the first heating area A and the second heating area B of the heating body 32 are all provided with a first flange 312, and the first heating area A and the second heating area of the heating body 32 are provided with first flanges 312. Regions B are all overlapped on the first flange 312 . Correspondingly, when the heating element 32 is energized and heated, the temperature of the part of the substrate 31 surrounding the first heating area A will be higher than the temperature of the part surrounding the first heating area A of the substrate 31 . In the structure shown in FIG. 2 , the first heat-generating area A and the portion of the substrate 31 surrounding the first heat-generating area A are inserted into the aerosol-forming matrix, and the second heat-generating area B and the substrate 31 surrounding the second heat-generating area B Some locations aerosols form outside the matrix.

Specifically, the dimensions of the products corresponding to the above-mentioned embodiments (see FIG. 2 ) can be found in FIGS. 8 and 9 , wherein FIG. 8 is a schematic view of the dimensions of the heating component provided by an embodiment of the application, and FIG. 9 is the structure shown in FIG. 8 . C direction view; Specifically, the total length L21 of the substrate 31 may be 15-20 mm, such as 18.00 mm, the total width W21 may be 3-6 mm, such as 5.00 mm, the total thickness H21 may be 0.3- 0.6 mm, such as 0.5 mm; wherein, the width W22 of the first surface _C1 of the substrate 31 may be 0.5-1 mm, such as 0.75 mm, and the width W23 of the second surface D1 _of the substrate 31 may be 1- 2 mm, such as 1.25 mm, in this embodiment, the width of the first flange 312 may be 0.2-0.3 mm, such as 0.25 mm; The length L22 may be 10-17 mm, such as 16.1 mm, the width W24 may be 2-5 mm, such as 3.4 mm, and the length L23 of the first extension part 321 and the second extension part 322 may be 12-16 mm , for example, it can be 14.55 mm, the distance L24 between the first extension part 321 and the second extension part 322 is less than one tenth of the width of the entire heating body 32 , and the distance between the first extension part 321 and the second extension part 322 The range of L24 may be 0.25-0.35 mm, for example, the distance L24 between the two may be 0.3 mm, so as to effectively ensure the strength of the heating body 32 and avoid short-circuit problems. Specifically, after the heating element 32 is accommodated in the accommodating groove 311, a gap is left between it and the inner wall surface of the accommodating groove 311 to facilitate filling of the adhesive layer 34, and the width of the gap can be 0.05-0.1 mm. .

In another specific embodiment, referring to FIG. 10a, FIG. 10a is a schematic structural diagram of a heating assembly provided by another embodiment of the present application; the first heating area A and the second heating area B may also be only the first heating element 32 The area A is accommodated in the accommodating groove 311, and the second heating area B is suspended in the air. At this time, please refer to FIG. 10b. FIG. 10b is a schematic diagram of inserting the heating component provided in another embodiment of the present application into the aerosol atomization substrate; the substrate 31 can be fully inserted into the aerosol-forming matrix 302, and the heating element 32 is still partially inserted into the aerosol-forming matrix 302; The part corresponding to the second heating region B stays outside the aerosol forming matrix 302, that is, the aerosol forming matrix 302 is not inserted; inside the matrix 302, and most of the part corresponding to the second heat-generating area B stays outside the aerosol-forming matrix 302; in this embodiment, see FIG. 5 and FIG. 11, FIG. Schematic diagram of the structure of the assembly; the part of the first extension part 321 and the second extension part 322 located in the second heat generating area B has the first convex part 3211 and the second convex part 3221 arranged opposite to each other, so that the heat generating body 32 is located in the second heat generating area B. The width of the part of the second heating area B is larger than the width of the part located in the first heating area A, so as to ensure the strength of the second heating area B of the heating body 32 and make the resistance of the second heating area B of the heating body 32 relative to the first heating area. The resistance of the first heating area A is relatively small, so that the temperature corresponding to the second heating area B of the heating element 32 is relatively low. Specifically, in this embodiment, the length L21 of the substrate 31 is smaller than the length L22 of the heating element 32 .

Specifically, the first protruding portion 3211 and the second protruding portion 3221 are in contact with the ends of the substrate 31 respectively; and in a specific embodiment, the width of the first protruding portion 3211 and the second protruding portion 3221 is W25 It can be the same as the width W26 of the opposite two side walls of the accommodating groove 311 , and the opposite two side walls of the accommodating groove 311 refer to the two extending portions of the substrate 31 arranged in parallel at intervals; and in one embodiment, see FIG. 5 , the ends of the first extension part 321 and the second extension part 322 away from the third extension part 323 are provided with a second flange 313 flush with the first flange 312 , the first raised part 3211 and the second raised part The position corresponding to the second flange 313 of 3221 is provided with a first escape portion 324 corresponding to the second flange 313. The first escape portion 324 overlaps the second flange 313 to pass through the second flange. 313 supports the second heat-generating area B of the heat-generating body 32 .

In another embodiment, referring to FIG. 3a, all the heating elements 32 are accommodated in the accommodating groove 311, and the first flange 312 is only provided at the position where the inner wall surface of the accommodating groove 311 is close to the first end M; specifically Yes, the first flanges 312 include two, and the two first flanges 312 are oppositely disposed on the two inner wall surfaces of the accommodating groove 311 and are located at the position of the base plate 31 close to the first end M.

Specifically, when the entire heating element 32 is accommodated in the accommodating groove 311 , the inner wall surface of the accommodating groove 311 is only provided with two first flanges 312 at the position corresponding to the second heating area B of the heating element 32 . The part of the second heat generating area B of the body 32 is overlapped on the two first flanges 312; at this time, referring to FIG. 3b, FIG. 3b is a schematic diagram of inserting the heat generating component provided by an embodiment of the application into the aerosol atomization substrate; The substrate 31 is partially inserted into the aerosol-forming matrix 302, and the heating element 32 is still partially inserted into the aerosol-forming matrix 302; specifically, only the portion corresponding to the first heating region A of the heating element 32 is inserted into the aerosol-forming matrix 302, and The first heating area A of the heating element 32 does not need to be supported by the substrate 31, and the part corresponding to the second heating area B of the heating element 32 and the part of the substrate 31 at the corresponding position stay outside the aerosol forming matrix 302, that is, no gas is inserted. The sol forms the matrix 302; in a specific embodiment, referring to FIG. 6 , the thickness of the heating body 32 is the same as that of the substrate 31, and the part of the heating body 32 located in the second heating region B is provided with two first flanges 312 corresponding to the thickness. The two second escape parts 325 overlap on the two first flanges 312 .

Of course, in other embodiments, when only the first heating area A of the first heating area A and the second heating area B of the heating element 32 is accommodated in the accommodating groove 311, the inner wall surface of the accommodating groove 311 only corresponds to Two first flanges 312 are provided at a part of the first heating area A of the heating body 32 , and a part of the heating body 32 located in the first heating area A overlaps the two first flanges 312 .

In a specific embodiment, the structural dimensions of the heating body 32 corresponding to FIG. 3a can be referred to in FIG. 12 , which is a schematic diagram of the size of the heating element provided by another embodiment of the present application; in this embodiment, the total size of the substrate 31 is The length L21 may still be 15-20 mm, such as 18.00 mm, the total width W21 may be 3-6 mm, such as 5.00 mm, and the total thickness H21 may be 0.3-0.6 mm, such as 0.5 mm; wherein, The width W22 of the first surface _C1 of the substrate 31 may be 0.5-1 mm, such as 0.75 mm, and the width W23 of the second surface D1 _of the substrate 31 may be 1-2 mm, such as 1.25 mm. In an embodiment, the thickness H22 of the first flange 312 may be 0.2-0.3 mm, such as 0.25 mm, and the length L25 of the first flange 312 may be 5-6 mm, such as 6.00 mm; The length L22 of the heating element 32 in the groove 311 may be 10-17 mm, for example, 16.1 mm, and the width W24 of the portion overlapping the first flange 312 may be 2-5 mm, such as 3.4 mm, The width W27 of the portion clamped between the first flanges 312 may be 2-3 mm, such as 2.4 mm; the length L23 of the first extension portion 321 and the second extension portion 322 may be 13-16 mm, such as It can be 14.55 mm, the distance L4 between the first extension part 321 and the second extension part 322 is less than one tenth of the width of the entire heating body 32, and the distance L24 between the first extension part 321 and the second extension part 322 is in the range It can be 0.25-0.35 mm, for example, the distance L24 between the two can be specifically 0.3 mm; The height corresponding to the escape portion 324 is the same as the thickness H22 of the first flange 312 . Specifically, the error range of the above dimensions does not exceed 0.05 mm.

In a specific embodiment, refer to FIGS. 13 to 16 , wherein, FIG. 13 is a schematic structural diagram of the mounting base provided by an embodiment of the application and a heating component after assembly; FIG. 14 is a schematic diagram of disassembly of the product corresponding to FIG. 13 ; FIG. 15 is a schematic structural diagram of the mounting seat provided by another embodiment of the application and the heating component after assembling; FIG. 16 is a schematic diagram of disassembly of the product corresponding to FIG. 15 ; the heating component 30 is also provided with a mounting seat 40. Among them, the heating element 30 is arranged on the mounting seat 40 to form a heating mechanism, and the mounting seat 40 and the heating element 30 are clamped and arranged to install the heating element 30 in the main body of the aerosol forming device through the mounting seat 40; Specifically, the mounting seat 40 is fixed at the position corresponding to the second heating area B on the heating element 30 ;

Specifically, the material of the mounting seat 40 can be an organic or inorganic material with a melting point higher than 160 degrees, for example, PEEK material; High temperature resistant glue.

In one embodiment, referring to FIGS. 13 and 14 , the mounting seat 40 includes a mounting body 41 , the mounting body 41 is provided with a mounting hole 42 , and the heating element 30 is specifically inserted into the mounting hole 42 to be mounted with the mounting seat 40 ; In a specific embodiment, when the heating body 32 of the heating component 30 is fixed to the mounting seat 40, the part corresponding to the second heating area B of the heating body 32 is inserted into the mounting hole 42; An escape groove is provided on the side wall, and the electrode lead wire extends into the mounting seat 40 through the escape groove to be connected with the electrode on the heating body 32 . Further, the mounting body 41 is further provided with at least two clamping portions 43 , and the mounting seat 40 is specifically fixed to the housing of the aerosol forming device through the clamping portions 43 .

Further, referring to FIG. 16 , one side of the installation body 41 may also be provided with an extension groove 44 communicating with the installation hole 42 , and the extension groove 44 may be specifically provided on a side surface of the third extension portion 323 away from the heating body 32 , And the shape of the extension slot 44 is the same as that of the part of the heating element 30 for inserting into the mounting seat 40 . For example, if the shape of the part of the heating element 30 for inserting the mounting seat 40 is a rectangle, the shape of the extension slot 44 is also a rectangle. , so as to reinforce the part of the heating element 30 inserted into the mounting seat 40 through the extension groove 44 to prevent it from breaking. In a specific embodiment, the mounting base 40 is provided with two extension grooves 44 , and the two extension grooves 44 are crossed and vertically arranged.

In a specific embodiment, referring to FIG. 17 , FIG. 17 is a front view of the mounting seat provided by an embodiment of the application after being assembled with the heating element; a part of the surface of the heating element 30 for inserting the mounting seat 40 has a first clamping structure 326 , the position corresponding to the first clamping structure 326 in the mounting hole 42 of the mounting seat 40 has a second clamping structure 327 , and the mounting seat 40 and the heating component are clamped by the first clamping structure 326 and the second clamping structure 327 . In order to realize the fixation of the two, and thereby improve the stability of the connection between the two. The first clamping structure 326 may specifically be a plurality of protrusions (or depressions), and the second clamping structure 327 may be a depression (or protrusion) matched with the first clamping structure 326 . Specifically, when the heating element 32 of the heating element 30 is fixed to the mounting seat 40 , the first clamping structure 326 may be disposed on the first extension portion 321 and the second extension portion 322 of the heating element 32 for inserting into the mounting seat 40 . Surface; when the base plate 31 of the heating element 30 is fixed to the mounting seat 40 , the first clamping structure 326 may be specifically provided on a part of the surface of the base plate 31 for inserting the mounting seat 40 (see FIG. 17 ).

The heating element 30 provided in this embodiment can directly use a self-supporting ceramic heating plate (or heating rod) in the heating form, and the heating element 32 can be arranged in a single series connection according to the requirements of the electrode placement position and resistance value; The body 32 is made of ceramic material. Compared with the existing metal heating body or the heating body structure formed by coating the metal heating material on the ceramic substrate, it can simultaneously contact and heat the tobacco on both sides, and the heating is more uniform and stable.

Please refer to FIG. 18 . FIG. 18 is a schematic structural diagram of an aerosol forming apparatus provided by an embodiment of the application; in this embodiment, an aerosol forming apparatus 300 is provided, and the aerosol forming apparatus 300 includes a casing 301 and a set of The heat generating component 30 , the mounting seat 40 and the power supply component 50 in the housing 301 .

The heating component 30 is arranged on the mounting seat 40 and is fixedly installed on the inner wall surface of the housing 301 through the mounting seat 40; specifically, the specific structures and functions of the heating component 30 and the mounting seat 40 can be referred to in the above embodiments. The textual descriptions in the relevant embodiments of the heating element 30 will not be repeated here; the power supply element 50 is connected to the heating element 30 for supplying power to the heating element 30 ; and in one embodiment, the power supply element 50 may specifically be rechargeable of lithium-ion batteries.

In the aerosol forming apparatus 300 provided in this embodiment, the heating element 30 is provided to heat and atomize the aerosol forming substrate 302 after the aerosol forming substrate 302 is inserted; wherein, the heating element 30 is arranged to include a substrate 31 and the heating element 32, so as to heat the tobacco in the aerosol-forming substrate 302 by the heating element 32 after the aerosol-forming substrate 302 is inserted; The second extension part 322 connected to the part 321, and the first extension part 321 and the second extension part 322 of the substrate 31 and the heating body 32 are used for at least partially inserting the aerosol forming matrix 302 and generating heat to heat the aerosol forming substrate when energized Matrix 302; compared with the existing heating element that is silk-screened on a ceramic substrate, the substrate 31 and heating element 32 of the present application can be directly and independently inserted into the aerosol forming matrix 302, and the heating element 32 will not be removed from the heating element 32 during high temperature heating. The problem of failure caused by falling off the ceramic base greatly improves the stability of the heating element 30; in addition, by setting the substrate 31, the heating element 32 is embedded in the substrate 31 to improve the strength of the heating element 30, so that the heating element 30 During the process of inserting the aerosol forming matrix 302, the substrate 31 can be subjected to force, which effectively avoids the problem that the heating body 32 is bent due to the force.

The above are only the embodiments of the present application, and are not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied in other related technical fields, All are similarly included in the scope of patent protection of the present application.

Claims

A heating component, which includes:

substrate;

A heating element is embedded in the base plate and the heating element comprises a first extension part arranged at intervals and a second extension part connected with one end of the first extension part, the base plate and the heating element are used for at least Partially inserts into the aerosol-forming substrate and generates heat to heat the aerosol-forming substrate when the first extension and the second extension are energized.
The heating assembly according to claim 1, wherein a receiving groove is formed on the base plate, at least a part of the heating body is received in the receiving groove, and the first extending portion and the second extending portion are juxtaposed. spaced apart, the heating element further comprises a third extension part for completely inserting and heating the aerosol-forming substrate, and the close ends of the first extension part and the second extension part are connected by the third extension part .
The heating component according to claim 2, wherein the substrate has a first surface and a second surface opposite to the first surface, and the accommodating groove penetrates through the first surface and the first surface. Through grooves on the two surfaces, so that the heating element is exposed from one side of the first surface and one side of the second surface, respectively.
The heat generating assembly according to claim 3, wherein the through groove has an open end and a closed end opposite to the open end; the third extension is provided at the position of the open end and extends from the opening The ends extend out to form the tip.
The heating element according to claim 3, wherein the through groove has an open end and a closed end opposite to the open end, the third extension portion is provided at a position close to the closed end, and the substrate is close to the closed end. The location of the closed end has a pointed end.
The heating assembly according to claim 5, wherein a first flange is provided on the inner wall surface of the through groove close to the second surface, and the heating body is overlapped on the first flange.
The heating assembly according to claim 6, wherein the first flange extends along a circumferential direction of the through groove, and the heating body comprises a first heating region and a second heating region connected to the first heating region. The heat generating area, among the first heat generating area and the second heat generating area, only the first heat generating area is accommodated in the accommodating groove and overlapped on the first flange.
The heat-generating component according to claim 7, wherein the portions of the first extension portion and the second extension portion located in the second heat-generating region have first and second raised portions opposite to each other. , the first protruding portion and the second protruding portion are respectively in contact with the ends of the substrate.
The heat-generating component according to claim 8, wherein the end of the base plate abutting against the first protrusion and the second protrusion is provided with a second flange, and the first protrusion and the second protrusion are provided with a second flange. A position corresponding to the second raised portion and the second flange is provided with a first escape portion, and the first escape portion overlaps the second flange.
The heating assembly according to claim 6, wherein the heating body comprises a first heating area and a second heating area connected to the first heating area, and the heating body is entirely accommodated in the accommodating groove , and the inner wall surface of the accommodating groove is only provided with two first flanges at the position corresponding to the second heating area, and the part of the heating body located in the second heating area overlaps the two on the first flange.
The heating assembly according to claim 10, wherein the part of the heating body located in the second heating region is provided with two second vacancies corresponding to the two first flanges, and the two The second escape portion overlaps the two first flanges.
The heat-generating component according to claim 10, wherein a ratio of the heat-generating temperature of the first heat-generating area to the heat-generating temperature of the second heat-generating area is greater than 2.
The heating element according to claim 1, wherein the heating element further comprises a first electrode and a second electrode, and one of the first electrode and the second electrode is disposed on the first extension part One end of the second extension portion away from the third extension portion, another electrode is disposed at the end of the second extension portion away from the third extension portion.
The heating component according to claim 13, wherein a first surface of the first extension part and a second surface opposite to the first surface are provided with the electrodes, and the first surface of the second extension part is provided with the electrodes. Both a surface and a second surface opposite the first surface are provided with the electrodes.
The heating element according to claim 13, wherein the heating element further comprises a protective layer, which is coated on the surface of the heating body and covers the first electrode and the second electrode; or is coated on the whole of the heating element. The surface of the substrate and the part of the surface of the heating element close to the substrate are exposed, so that the part of the surface of the heating element away from the substrate is exposed.
The heating assembly according to claim 1, wherein the heating body is a heating plate, and the distance between the first extension part and the second extension part of the heating body is 0.25-0.35 mm.
The heating element according to claim 1, wherein the heating body comprises a main component and a crystal component; the main component is one of manganese, strontium, lanthanum, tin, antimony, zinc, bismuth, silicon, and titanium or The crystal composition is one or more of lanthanum manganate, strontium lanthanum manganate, tin oxide, zinc oxide, antimony oxide, bismuth oxide, silicon oxide, and yttrium oxide.
The heating assembly according to claim 1, wherein the substrate is an insulating ceramic, and an adhesive layer is provided between the substrate and the heating body for bonding the substrate and the heating body.
The heating element according to claim 3, wherein the heating element and the substrate are flat plates, and the upper and lower surfaces of the heating element are flush with or protrude or recessed from the first surface and the substrate of the substrate. and two surfaces.
An aerosol forming device, comprising: a housing and a heating component and a power supply component disposed in the housing; wherein, the power supply component is connected to the heating component for supplying power to the heating component, and the The heat-generating component is the heat-generating component as claimed in claim 1 .