WO2024055732A1

WO2024055732A1 - Heating assembly, aerosol generation apparatus and aerosol generation system

Info

Publication number: WO2024055732A1
Application number: PCT/CN2023/106199
Authority: WO
Inventors: 梁峰; 郭玉; 杜贤武; 李洪; 刘小力; 冼小毅; 李欢喜; 邓原冰
Original assignee: 深圳麦时科技有限公司
Priority date: 2022-09-16
Filing date: 2023-07-06
Publication date: 2024-03-21
Also published as: CN115486573A

Abstract

Provided in the present application are a heating assembly, an aerosol generation apparatus and an aerosol generation system. The heating assembly comprises: an accommodation structure, a heating film and a power supply electrode. The accommodation structure has a proximal opening, and is used for accommodating an aerosol generation product by means of the proximal opening, and during heating, infrared rays are radiated to heat the aerosol generation product; the heating film covers the accommodation structure in a planar shape, and is used for heating the accommodation structure when being powered on; the heating film is configured to have different power densities on two sides of the midpoint of the accommodation structure in a lengthwise direction; and the power supply electrode is electrically connected to the heating film, so as to supply power to the heating film. The heating assembly effectively improves the heating efficiency, and has relatively good uniformity in heating. The problem of an aerosol generation product being scorched due to a local temperature being high is avoided. Moreover, a temperature field can be designed according to expectations, thereby facilitating the design of the positions of other asymmetric high-temperature areas.

Description

Heating components, aerosol generating devices and aerosol generating systems

Cross-references to related applications

This application claims priority based on Chinese patent application 2022111318243 filed on September 16, 2022, the entire contents of which are incorporated herein by reference.

Technical field

The present invention relates to the technical field of electronic atomization, and in particular, to a heating component, an aerosol generating device and an aerosol generating system.

Background technique

Heat Not Burning (HNB) aerosol generating devices have attracted more and more attention and favor due to their advantages of safety, convenience, health, and environmental protection.

Existing heat-not-burn aerosol generating devices generally include a heating component and a power supply component; wherein, the heating component is used to heat and atomize the aerosol-generating product when power is applied to form an aerosol; the power supply component is connected to the heating component, Used to supply power to the heating element.

However, existing heating components have low heating efficiency, large temperature differences between the inside and outside of aerosol-generating products, and poor heating uniformity. In addition, when the existing heating components are heated, the high-temperature area is located in the central area of the heating element, the speed of generating aerosol is slow, and the temperature field cannot be designed as expected, making it inconvenient to design other asymmetric high-temperature area locations.

Contents of the invention

This application provides a heating component, an aerosol generation device and an aerosol generation system, aiming to solve the problem of low heating efficiency of existing heating components, large temperature difference between the inside and outside of aerosol-generating products, and poor heating uniformity; and The high-temperature area is located in the central area of the heating element. The temperature field cannot be designed as expected, and it is inconvenient to design other asymmetric high-temperature area locations.

In order to solve the above technical problems, one technical solution adopted by this application is to provide a heating component. The heating component includes: a receiving structure, a heating film and a power supply electrode; wherein the receiving structure has a proximal opening for receiving the aerosol-generating product through the proximal opening, and radiates infrared rays to heat the aerosol when heated. A product is produced; a heating film is covered in a planar shape on the containment structure for heating the containment structure when electricity is applied; and the heating film is configured such that the power on both sides of the midpoint in the length direction of the containment structure is The density is different; the power supply electrode is electrically connected to the heating film to provide power to the heating film.

Optionally, a plane perpendicular to the length direction of the receiving structure and passing through the midpoint divides the surface of the receiving structure into a first area and a second area; the second area is located in the first area The side facing away from the proximal opening; the resistance density per unit area of the heating film in the first region is different from the resistance density per unit area of the heating film in the second region.

Optionally, the heating film includes:

A first heating part is provided in the first area;

The second heating part is arranged in the second area and is spaced apart from the first heating part along the length direction of the accommodation structure; and both the first heating part and the second heating part are along the length of the accommodation structure. extends in the circumferential direction.

Optionally, the first heating part and the second heating part are both arranged around the circumference of the receiving structure, and the first heating part and the second heating part have the same material and thickness, The first heating part and the second heating part have different widths along the length direction of the containing structure.

Optionally, a plane perpendicular to the length direction of the receiving structure and passing through the midpoint divides the surface of the receiving structure into a first area and a second area; the second area is located in the first area The side facing away from the proximal opening;

The heating film is a continuous film layer structure, and part of the heating film is located in the first area, and the remaining part is located in the second area.

Optionally, the heating film is arranged around the circumference of the containing structure, and the material and thickness of the heating film are uniform; the width of the part of the heating film located in the first area is the same as the width of the heating film. The portions located in the second area have different widths.

Optionally, the width of the portion of the heating film located in the first area is greater than the width of the portion of the heating film located in the second area. The width of the section.

Optionally, the heating film is expanded into a rectangular shape along the circumferential direction of the containing structure.

Optionally, the power supply electrode includes:

The first electrode includes a first power supply part and a first extension part; the first power supply part is located at the first end of the accommodation structure, and the first extension part extends from the first power supply part along the direction of the accommodation structure. Extends in the length direction and contacts the portion of the heating film located in the first area and the portion located in the second area to achieve electrical connection;

The second electrode is spaced apart from the first electrode and includes a second power supply part and a second extension part; the second power supply part is located at the first end or the second end of the receiving structure, and the second extension part Extends from the second power supply part along the length direction of the receiving structure, and contacts the part of the heating film located in the first area and the part located in the second area to achieve electrical connection; and along the In the circumferential direction of the receiving structure, the second extension part at least partially overlaps the first extension part.

Optionally, the second power supply part is located at the first end of the receiving structure, and the first extending part and/or the second extending part extends from the first end of the receiving structure to the receiving structure. The second end of the structure.

Optionally, the second power supply part is located at the second end of the receiving structure, and the first extension part extends from the first power supply part to a position close to the second end of the receiving structure and is connected with the second end of the receiving structure. The second power supply parts are arranged at intervals;

The second extension portion extends from the second power supply portion to a position near the first end of the receiving structure and is spaced apart from the first power supply portion.

Optionally, the power supply electrode includes:

A first electrode is provided at the first end of the receiving structure, extends around the circumferential direction of the receiving structure, and is electrically connected to the first end of the heating film along the length direction of the receiving structure;

A second electrode is provided at the second end of the receiving structure, extends around the circumferential direction of the receiving structure, and is electrically connected to the second end of the heating film along the length direction of the receiving structure;

A third electrode is disposed between the first electrode and the second electrode along the length direction of the accommodation structure, extends around the circumferential direction of the accommodation structure, and is electrically connected to the heating film; wherein , the width of the heating film between the first electrode and the third electrode is different from the width of the heating film between the second electrode and the third electrode.

Optionally, the containment structure includes:

The base body is in the shape of a hollow tube and is used to accommodate the aerosol-generating product;

A radiation layer is provided on the surface of the base body and is used to radiate infrared rays to heat the aerosol-generating article when heated.

Optionally, the radiation layer is disposed on the inner surface of the side wall of the base body, and the heating film is disposed on a side of the base body away from the radiation layer; or

The radiation layer is disposed on the outer surface of the side wall of the base body, and the heating film is disposed on a side of the radiation layer facing away from the base body.

Optionally, the containment structure includes:

The base body is in the shape of a hollow tube and includes a main body and an infrared radiation material dispersed in the main body; the base body is used to accommodate an aerosol-generating substrate, and when heated, radiates infrared rays to heat the aerosol-generating product;

Wherein, the heating film and the electrode are arranged on the side where the outer surface of the side wall of the base body is located.

Optionally, the substrate is a quartz tube.

In addition, in order to solve the above technical problems, this application also provides an aerosol generating device. The aerosol generating device includes a power supply component and the above-mentioned heating component; the power supply component is electrically connected to the heating component and is used to supply power to the heating component.

In addition, in order to solve the above technical problems, this application also provides an aerosol generation system. The aerosol generating system includes the above-mentioned aerosol generating device and an aerosol generating article.

Optionally, the aerosol-generating article is contained in the containing structure of the aerosol-generating device and is in direct contact with the inner surface of the side wall of the containing structure; or, the aerosol-generating article is contained in the containing structure. Within the structure and spaced apart from the inner surface of the side wall of the containing structure.

In the heating component, aerosol generation device and aerosol generation system of the present application, the heating component is provided with a containment structure and a heating film, so that the heating film covers the containment structure in a planar shape, so that the containment structure is heated by the heating film when power is supplied. , thereby causing the containment structure to be heated and radiate infrared rays, thereby using the infrared rays to heat and atomize the aerosol-generating product contained in the containment structure. Among them, through infrared heating, because infrared rays have certain penetrability, no medium is needed, and the heating efficiency is high. It can effectively improve the preheating efficiency of aerosol-generating products, and can effectively reduce the temperature difference between the inside and outside of aerosol-generating products. , thereby baking the aerosol-generating products more evenly and avoiding the problem of burning the aerosol-generating products caused by local high temperatures. At the same time, by arranging the heating film so that the power density on both sides of the midpoint in the length direction of the accommodation structure does not change. At the same time, the temperature field can be designed as expected, which facilitates the design of other asymmetric high-temperature area locations.

Description of drawings

Figure 1 is a schematic structural diagram of an aerosol generation system provided by an embodiment of the present application;

Figure 2 is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present application;

Figure 3 is a transverse cross-sectional view of the heating assembly provided by the first embodiment of the present application;

Figure 4 is a transverse cross-sectional view of a heating assembly provided by a specific embodiment of the present application;

Figure 5 is a schematic structural diagram of an aerosol-generating product contained in a containment structure according to an embodiment of the present application;

Figure 6 is a schematic structural diagram of an aerosol-generating product contained in a containment structure according to another embodiment of the present application;

Figure 7 is a perspective view of a heating assembly provided by an embodiment of the present application from a first perspective;

Figure 8 is a perspective view of the heating assembly shown in Figure 7 from a second perspective;

Figure 9 is a plan view of the heating assembly shown in Figure 7;

Figure 10 is a perspective view of a heating assembly provided by another embodiment of the present application from a first perspective;

FIG11 is a perspective view of the heating assembly shown in FIG10 at a second viewing angle;

Figure 12 is a plan view of the heating assembly shown in Figure 10;

Figure 13 is a schematic diagram of the positions of the first electrode and the second electrode on the receiving structure according to an embodiment of the present application;

Figure 14 is a schematic diagram of the positions of the first electrode and the second electrode on the receiving structure according to another embodiment of the present application;

Figure 15 is a schematic diagram of the positions of the first electrode and the second electrode on the receiving structure according to another embodiment of the present application;

Figure 16 is a schematic diagram of the positions of the first electrode and the second electrode on the receiving structure according to yet another embodiment of the present application;

Figure 17 is a transverse cross-sectional view of the heating assembly provided by the second embodiment of the present application;

Figure 18 is a transverse cross-sectional view of a heating assembly provided by another specific embodiment of the present application;

Figure 19 is a transverse cross-sectional view of the heating assembly provided by the third embodiment of the present application.

Explanation of reference symbols:
Aerosol generating device 1; aerosol generating product 2; heating component 10; power supply component 20; containing structure 11; base 111;
Receiving cavity 110; first end a; second end b; radiation layer 112; first insulating layer 113; second insulating layer 114; heating film 12; first heating part 121; second heating part 122; power supply electrode 13; First electrode 131; first power supply part 1311; first extension part 1312; second electrode 132; second power supply part 1321; second extension part 1322; third electrode 133; midline plane M; first area A; second Area B.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

The terms “first”, “second” and “third” in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited. All directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relative positional relationship between components in a specific posture (as shown in the drawings). , sports conditions, etc., if the specific posture changes, the directional indication will also change accordingly. Furthermore, the terms "including" and "having" 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 optionally also includes steps or units that are not listed, or optionally also includes Other steps or units inherent to such 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 this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

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

Please refer to Figure 1, which is a schematic diagram of an aerosol generation system provided by an embodiment of the present application;

In this embodiment, an aerosol generation system is provided, which includes an aerosol generation device 1 and The aerosol-generating product 2 housed in the aerosol-generating device 1 . The aerosol generating device 1 is used to heat and atomize the aerosol generating product 2 to form an aerosol for the user to inhale. The aerosol generating device 1 can be specifically used in medical, beauty, health care, electronic atomization and other technical fields; its specific structure and function can be found in the description of the aerosol generating device 1 provided in the following embodiments. The aerosol-generating product 2 can use a solid matrix, and can include one or more powders, granules, fragments, thin strips, strips or flakes of one or more plant leaves such as tobacco, vanilla leaves, tea leaves, mint leaves, etc. ;Alternatively, the solid matrix may contain additional volatile fragrance compounds that are released when the matrix is heated. Of course, the aerosol-generating product 2 can also be a liquid base or a paste base, such as oils, medicinal liquids, etc. with added aroma components.

Please refer to Figure 2, which is a schematic diagram of an aerosol generating device 1 provided by an embodiment of the present application;

In this embodiment, an aerosol generating device 1 is provided. The aerosol generating device 1 includes a heating component 10 and a power supply component 20 . The heating component 10 is used to accommodate and atomize the aerosol-generating product 2 when power is applied to generate aerosol; the specific structure and function of the heating component 10 may be referred to the heating component 10 involved in any of the following embodiments. The power supply component 20 is electrically connected to the heating component 10 and is used to supply power to the heating component 10 . The power component 20 may be a lithium-ion battery.

Please refer to FIG. 3 , which is a transverse cross-sectional view of the heating assembly 10 provided in the first embodiment of the present application; in the first embodiment, a heating assembly 10 is provided. The heating component 10 includes a receiving structure 11, a heating film 12 and a power supply electrode 13 (see Figure 9 below).

Referring also to FIG. 9 , the containment structure 11 includes a base 111 and a radiation layer 112 . The base body 111 is hollow tubular, and has a receiving cavity 110 and a proximal opening and a distal opening communicating with the receiving cavity 110 . The proximal opening and the distal opening are arranged oppositely along the length direction C of the base body 111 . The receiving cavity 110 is used to receive the aerosol-generating product 2; the aerosol-generating product 2 is specifically received in or removed from the receiving cavity 110 along the length direction C of the receiving cavity 110 through the proximal opening. The proximal opening is the end of the heating component 10 close to the suction nozzle. Specifically, the base 111 can be a hollow tubular structure, and the hollow tubular structure surrounds the receiving cavity 110 . Specifically, the outer diameter of the base body 111 is uniform along its length direction C; the base body 111 may be hollow cylindrical.

Specifically, the base 111 can be made of an insulating material. For example, the base 111 can be a quartz tube, a ceramic tube, a mica tube, or the like. Preferably, the base 111 can be a transparent quartz tube to facilitate the passage of infrared rays. Of course, the base 111 can also be made of non-insulating materials, such as stainless steel, aluminum and other metals.

The radiation layer 112 is disposed on the inner surface of the side wall of the base 111 for radiating infrared rays when heated, so as to use the infrared rays to heat and atomize the aerosol-generating product 2 contained in the containing cavity 110 . The above-mentioned method of using infrared rays to heat the aerosol-generating product 2 has a certain penetration, does not require a medium, and has high heating efficiency. It can effectively improve the preheating efficiency of the aerosol-generating product 2 and reduce the temperature inside and outside the aerosol-generating product 2 Therefore, the aerosol-generating product 2 can be baked more uniformly, and the problem of the aerosol-generating product 2 being burned due to local high temperature can be avoided. At the same time, by disposing the radiation layer 112 on the inner surface of the base 111, the infrared rays radiated by the radiation layer 112 can be directly radiated to the aerosol generating product 2 without passing through the base 111, and the utilization rate of infrared rays is high.

The radiation layer 112 may be formed on the entire inner surface of the side wall of the base body 111 by silk screen printing, sputtering, coating, printing, or other methods. The radiation layer 112 may specifically be an infrared layer. The material of the infrared layer includes at least one of high infrared emissivity materials such as perovskite system, spinel system, carbide, silicide, nitride, oxide, and rare earth materials. .

Combining Figure 3 and Figure 7 below, the heating film 12 covers the receiving structure 11 in a planar shape. In one embodiment, the heating film 12 is disposed in a planar shape on the side of the base 111 away from the radiation layer 112 and extends along the circumferential direction of the containing structure 11 to generate heat when electricity is applied to heat the radiation layer 112 and cause the radiation to radiate. Layer 112 is heated to radiate infrared rays. Specifically, the heating film 12 uses a resistive material that releases Joule heat when energized, such as a thick film printed resistor layer, a thin film printed resistor layer, or a nanometer resistor layer. Among them, the planar heating film 12 is different from the linear shape. After the planar shape is unfolded, it can take on a rectangular, circular, square or other irregular shape with a cross-sectional area.

As shown in FIG. 3 , when the base 111 is an insulating base, the heating film 12 is specifically disposed on a side surface of the base 111 away from the radiation layer 112 , and the heat generated by the heating film 12 is thermally conducted to the radiation layer 112 through the base 111 to heat the radiation. Layer 112. It can be understood that in this embodiment, the heating film 12 is directly disposed on the surface of the containing structure 11 , that is, the heating film 12 is in direct contact with the surface of the containing structure 11 . When the base body 111 is a non-insulating base body, preferably the base body 111 is made of a metal material, such as stainless steel, as shown in Figure 4. Figure 4 is a transverse cross-sectional view of the heating assembly 10 provided by a specific embodiment of the present application. ; A high-temperature resistant first insulating layer 113 is also formed on the surface of the base 111 facing away from the radiation layer 112. The heating film 12 is specifically disposed on the side surface of the first insulating layer 113 facing away from the base 111 to prevent the heating film 12 from contacting the base 111. There is a short circuit between them; at this time, the heat generated by the heating film 12 is thermally conducted to the radiation layer 112 through the first insulating layer 113 and the base 111 to heat the radiation layer 112. It can be understood that in this embodiment, the heating film 12 is disposed on the containing structure 11 through the first insulating layer 113 , that is, the heating film 12 is in indirect contact with the surface of the containing structure 11 . In a specific implementation, the first insulating layer 113 may be a glaze layer.

In this embodiment, in order to improve the heat utilization rate of the heating assembly 10, to further improve the heating of the aerosol-generating product 2 Thermal efficiency; refer to Figure 5, which is a schematic structural diagram of the aerosol-generating product 2 contained in the containing structure 11 provided by an embodiment of the present application; when the aerosol-generating product 2 is contained in the containing cavity 110, the aerosol-generating product 2 is in direct contact with the inner surface of the side wall of the containing structure 11 (such as the surface of the radiation layer 112). In this way, while using infrared radiation to the inside of the aerosol-generating product 2 to heat the aerosol-generating product 2 , the heat of the heating film 12 can be conducted to the aerosol-generating product 2 through the containing structure 11 (such as the radiation layer 112 ). , to use the heat to further heat the aerosol-generating product 2, thereby improving the heat utilization rate, atomizing efficiency and aerosol generation speed.

Of course, in other embodiments, as shown in Figure 6, Figure 6 is a schematic structural diagram of the aerosol-generating product 2 contained in the containment structure 11 provided by another embodiment of the present application; when the aerosol-generating product 2 is contained in the containment structure When inside the cavity 110 , the aerosol-generating product 2 can also be spaced apart from the inner surface of the side wall of the containing structure 11 (such as the radiation layer 112 ) to prevent the aerosol-generating product 2 from scratching or damaging the radiation layer 112 . . It will be appreciated that in this embodiment the aerosol-generating article 2 is heated primarily by infrared radiation. Furthermore, the surface of the heating film 12 or/and the radiation layer 112 may be further coated with a protective layer, and the protective layer may specifically be a glaze layer. Wherein, the thickness of the radiation layer 112 may be 10-100 microns. Preferably, the thickness of the radiation layer 112 is 20-40 microns. In this embodiment, the radiation layer 112 can be produced by thick film printing. The material of the radiation layer 112 may include one or more of black silicon, cordierite, transition metal oxide series spinel, rare earth oxide, ion co-doped perovskite, silicon carbide, zircon, and boron nitride. kind. Of course, the thickness of the radiation layer 112 can also be 1-10 microns; preferably, the thickness of the radiation layer 112 is 1-5 microns. In this embodiment, the radiation layer 112 is specifically a thin film coating. The material of the radiation layer 112 may be CrC, TiCN, or diamond-like carbon film (DLC).

Specifically, the heating film 12 is configured such that the power density on both sides of the midpoint in the length direction C of the accommodation structure 11 is different; that is, the heat generated by the heating film 12 prevents the high-temperature area in the accommodation cavity 110 of the accommodation structure 11 from being located The central area of the receiving cavity 110 along the length direction C. In this way, the temperature field of the containment structure 11 can be designed as expected, which facilitates the design of other asymmetric high-temperature region locations.

In a specific embodiment, please refer to FIGS. 7 to 9 . FIG. 7 is a perspective view of the heating assembly 10 provided by an embodiment of the present application from a first perspective; FIG. 8 is a second perspective view of the heating assembly 10 shown in FIG. 7 The three-dimensional view below; Figure 9 is a plan view of the heating assembly 10 shown in Figure 7; the midline plane M perpendicular to the length direction C of the accommodation cavity 110 and passing through the midpoint divides the accommodation structure 11 into equal areas along its length direction C. first area A and second area B. The first area A is close to the proximal opening of the base 111, and the second area B is located on the side of the first area A away from the proximal opening.

In this specific embodiment, the resistance density per unit area of the heating film 12 in the first region A is different from the resistance density per unit area of the heating film 12 in the second region B. In this way, after the heating film 12 is energized, the heating power of the first area A and the second area B of the accommodation structure 11 can be different, thereby forming a temperature difference between the first area A and the second area B of the accommodation structure 11 of two areas. At the same time, using the midline plane M as the dividing line between the first area A and the second area B can ensure that the power density on both sides of the midpoint of the length direction C of the receiving cavity 110 is different, which facilitates the design of other asymmetric high-temperature zone locations.

Specifically, in order to increase the heating speed of the heating component 10 near the proximal opening to speed up the generation of aerosol, the area of the heating film 12 located in the first region A can be larger than that of the heating film 12 located in the second region B. Membrane 12 area. In this way, after the heating film 12 is energized, the heating power of the first region A of the accommodation structure 11 is greater than the heating power of the second region B. Therefore, when the areas of the first region A and the second region B are the same, the first region A and the second region B have the same area. The heating power density of area A is greater than that of the second area B. Correspondingly, the overlap area between the inner surface of the base 111 and the heating film 12 in the first area A is also greater than that of the radiation layer 112 and the heating film 12 in the second area B. The overlapping area and the radiating layer 112 corresponding to the first area A have a higher temperature than the radiating layer 112 corresponding to the second area B and radiate more infrared rays to obtain the expected temperature of the first area A of the containment structure 11 The design effect of a temperature higher than that of the second area B, that is, the high-temperature area of the containment structure 11 is located in the first area A; effectively improves the partial atomization efficiency of the aerosol-generating product 2 corresponding to the first area A, and speeds up the aerosol generation. the generation speed.

In a specific embodiment, as shown in FIG. 9 , the heating film 12 includes a first heating part 121 and a second heating part 122 that are spaced apart. The first heating part 121 is disposed in the first area A of the containing structure 11; the second heating part 122 is disposed in the second area B of the containing structure 11 and is spaced apart from the first heating part 121 along the longitudinal direction C of the containing structure 11. And in a specific embodiment, the first heating part 121 and the second heating part 122 are both rectangular, such as square or rectangular, after being expanded along the circumferential direction of the containing structure 11; of course, they may also be circular, elliptical or other different shapes. Regular shape, preferably rectangular.

In a specific embodiment, the material, thickness and length of the first heating part 121 and the second heating part 122 are the same, and the widths along the C direction are different, so that the resistance of the first heating part 121 and the resistance of the second heating part 122 are different. ; Wherein, it can be understood that the lengths of the first heating part 121 and the second heating part 122 respectively refer to the corresponding circumferential lengths when they are arranged around the base 111.

Specifically, as shown in Figure 7 or Figure 8, the first heating part 121 and the second heating part 122 are both in a closed ring shape and surround the base body. 111 is set in one circle in the circumferential direction. It can be understood that since the circumferential dimensions of the base 111 are the same, the length dimensions of the first heating part 121 and the second heating part 122 along the circumferential direction of the base 111 are also the same. Therefore, in this specific embodiment, as shown in FIG. 9 , the widths of the first heating part 121 and the second heating part 122 along the length direction C of the accommodation structure 11 can be made different to obtain first heating parts with different power densities. 121 and the second heating part 122.

Specifically, in order to obtain the expected design temperature field, even if the temperature of the first area A of the containment structure 11 is higher than the height of the second area B; the width of the first heating part 121 along the length direction C of the containment structure 11 can be greater than the second The width of the heating part 122 is along the longitudinal direction C of the accommodation structure 11 .

In another specific embodiment, refer to FIGS. 10 to 12 . FIG. 10 is a perspective view from a first perspective of the heating assembly 10 provided by another embodiment of the present application. FIG. 11 is a second perspective view of the heating assembly 10 shown in FIG. 10 . A perspective view of a perspective view; Figure 12 is a plan view of the heating component 10 shown in Figure 10; the heating film 12 is a continuous film layer structure, that is, the heating film 12 is integrally formed. In this embodiment, part of the heating film 12 is located in the first area A and the remaining part is located in the second area B. As shown in FIG. 12 , the heating film 12 may be in a rectangular shape after being deployed along the circumferential direction of the containing structure 11 , such as a square or a rectangular shape; of course, it may also be in a circular, elliptical or other irregular shape.

Wherein, the material and thickness of each position of the heating film 12 are the same, and the cross-sectional area of the part of the heating film 12 located in the first region A is different from the cross-sectional area of the part of the heating film 12 located in the second region B; that is, the heating film 12 The proportions of the parts of the heating film 12 located in the first region A and the second region B are different, so that the resistance of the part of the heating film 12 located in the first region A and the power density of the part of the heating film 12 located in the second region B are different.

Specifically, the heating film 12 is also in a closed ring shape and is arranged around the circumferential direction of the base 111 . It can be understood from the above that the heating film 12 has the same circumferential size along the base 111; in this specific embodiment, along the length direction C of the base 111, the width of the part of the heating film 12 specifically located in the first area A is equal to the width of the heating film 12 located in the first area A. The widths of the portions of the second region B are different, so that the resistance of the portion of the heating film 12 located in the first region A is different from the resistance of the portion of the heating film 12 located in the second region B.

In a specific embodiment, along the length direction C of the base 111 , the width of the portion of the heating film 12 located in the first area A is greater than the width of the portion of the heating film 12 located in the second area B; in this way, in each part of the heating film 12 When the material, thickness and length of the position are the same, the resistance of the part of the heating film 12 located in the first area A can be smaller than the resistance of the part of the heating film 12 located in the second area B, so that after the heating film 12 is energized, the The heating power of the first region A is greater than the heating power of the second region B; and when the areas of the first region A and the second region B are the same, the heating power density of the first region A is greater than the heating power of the second region B. The power density effectively improves the partial atomization efficiency of the aerosol-generating product 2 corresponding to the first area A, and accelerates the generation speed of the aerosol.

Of course, in other embodiments, the resistance of the heating film 12 in the corresponding area can also be controlled by controlling the material or thickness of the heating film 12 in the corresponding area. This application does not limit this, as long as it is ensured that the heating film 12 is located in the first The resistance of the portion of the region A is different from the resistance of the portion of the heating film 12 located in the second region B.

Those skilled in the art can understand that the above-mentioned containing structure 11 can also use another plane or multiple parallel planes perpendicular to the length of the containing cavity 110 as dividing lines to divide the containing structure 11 into multiple regions. The portions of the heating film 12 where at least two of the plurality of regions are located have different widths along the length direction C of the accommodation structure 11 to correspond to regions with different temperatures; wherein, the high-temperature region among the multiple regions with different temperatures is different from the accommodation cavity. The power density on both sides of the midpoint of the length direction C of 110 is different.

The power supply electrode 13 is electrically connected to the heating film 12 to provide power to the heating film 12 . Specifically, the power supply electrode 13 can be made of metal materials with high conductivity such as silver, gold, copper, and alloys containing gold, silver, and copper.

In a specific embodiment, please refer back to FIGS. 7 to 9 , the power supply electrode 13 includes a first electrode 131 and a second electrode 132 .

The first electrode 131 includes a first power supply part 1311 and a first extension part 1312. The first power supply part 1311 is provided at the first end a of the accommodation structure 11 , extends along the circumferential direction of the accommodation structure 11 , and is spaced apart from the heating film 12 . The first extension part 1312 is electrically connected to the first power supply part 1311, and extends from the first power supply part 1311 along the length direction C of the receiving structure 11, and is connected to the part of the heating film 12 located in the first area A and the second area B. to achieve electrical connection with the heating film 12 .

The second electrode 132 includes a second power supply part 1321 and a second extension part 1322. The second power supply part 1321 is also located at the first end a of the accommodation structure 11 , extends along the circumferential direction of the accommodation structure 11 , and is spaced apart from the first power supply part 1311 . The second extension part 1322 is electrically connected to the second power supply part 1321, and extends from the second power supply part 1321 along the length direction C of the receiving structure 11, and is connected to the part of the heating film 12 located in the first area A and the second area B. to electrically connect with the heating film 12 . 7 and 9 , along the circumferential direction of the accommodation structure 11 , the second extension portion 1322 overlaps at least partially with the first extension portion 1312 , so that the heating film 12 forms a vortex along the circumferential direction of the accommodation structure 11 . and generate heat.

In this embodiment, as shown in FIG. 9 , the first extension part 1312 and/or the second extension part 1322 may extend from the first end a of the receiving structure 11 to the second end b of the receiving structure 11 .

Of course, in other embodiments, see Figure 13. Figure 13 shows the first electrode 131 and the second electrode provided in an embodiment of the present application. Schematic diagram of the position of pole 132 on the containment structure 11. The second power supply part 1321 can also be provided at the second end b of the receiving structure 11, and the second extension part 1322 extends from the second power supply part 1321 along the length direction C of the receiving structure 11 to a position close to the first end a of the receiving structure 11, and is spaced apart from the first power supply unit 1311 . In this embodiment, the first extension portion 1312 extends from the first power supply portion 1311 to a position close to the second end b of the receiving structure 11 and is spaced apart from the second power supply portion 1321 .

13, the number of the first extension part 1312 and the second extension part 1322 is one, and they are arranged oppositely along the radial direction of the receiving structure 11; the heating film 12 includes a first heating part 121 and a second heating part. At 122 , the first extension part 1312 and the second extension part 1322 specifically divide the heating film 12 into four parallel main heating parts. The expanded shape of each main heating part includes but is not limited to a rectangle; such as a square or a rectangle. face.

Combined with FIG. 14 , FIG. 14 is a schematic diagram of the positions of the first electrode 131 and the second electrode 132 on the receiving structure 11 according to another embodiment of the present application. Those skilled in the art can understand that when the heating film 12 has a continuous film layer structure, the first extension part 1312 and the second extension part 1322 specifically divide the heating film 12 into two parallel main heating parts. Each main heating part The shape after partial expansion includes but is not limited to rectangle; such as square or rectangle and other connected faces. It can be understood that the width of each main heating portion in the first area A and the second area B is different.

Of course, in other embodiments, the number of the first extension portions 1312 and/or the second extension portions 1322 may be multiple, and the plurality of first extension portions 1312 and the plurality of second extension portions 1322 are along the circumferential direction of the receiving structure 11 The directions are arranged alternately to form a plurality of regions with different temperatures on the containment structure 11 along its circumferential direction. Compared with the solution in which the containment structure 11 forms two regions with different temperatures along its circumferential direction, the circumferential length of the heating film 12 corresponding to each area is reduced along the circumferential direction of the containment structure 11; those skilled in the art can understand , when the width of the heating film 12 along the longitudinal direction C of the accommodation structure 11 remains unchanged, if the circumferential length of the heating film 12 in the corresponding area decreases, the total resistance of the heating film 12 in the corresponding area decreases; thus , when the heating film 12 provides the same voltage, the heating power of the heating film 12 in this area can be effectively increased, thereby increasing the power density in this area to effectively increase the heating speed.

Specifically, the number of the first extending portions 1312 and/or the second extending portions 1322 is an even number, such as two, four, six, etc.

Specifically, the first power supply portion 1311 and the second power supply portion 1321 can be disposed on the surface of the substrate 111 away from the radiation layer 112 by sintering, or disposed on the surface of the first insulating layer 113 away from the radiation layer 112 by coating, deposition, etc. The first extension portion 1312 and the second extension portion 1322 extend to the surface of the heating film 12 to contact the heating film 12 and achieve electrical connection between the two. Specifically, the first electrode 131 and the second electrode 132 can be formed by coating or silk-screening, and the two can be made of high conductivity materials.

In another specific embodiment, refer to Figure 15, which is a schematic diagram of the positions of the first electrode 131 and the second electrode 132 on the receiving structure 11 according to another embodiment of the present application; the power supply electrode 13 includes the first electrode 131, The second electrode 132 and the third electrode 133.

The first electrode 131 is disposed on the first end a of the containing structure 11 , is disposed around the circumference of the containing structure 11 , and is electrically connected to the first end a of the heating film 12 along the length direction C of the containing structure 11 . Of course, in other embodiments, see FIG. 16 , which is a schematic diagram of the positions of the first electrode 131 and the second electrode 132 on the receiving structure 11 according to yet another embodiment of the present application; the first electrode 131 can also be provided on the base 111 The position near the first end a, that is, the portion of the base 111 is exposed through the power supply electrode 13 and the heating film 12 .

The second electrode 132 is disposed on the second end b of the receiving structure 11 , is disposed around the circumference of the receiving structure 11 , and is electrically connected to the second end b of the heating film 12 along the length direction C of the receiving structure 11 . The second electrode 132 and the first electrode 131 are used to electrically connect with the positive electrode (or negative electrode) of the power supply assembly 20 .

The third electrode 133 is disposed between the first electrode 131 and the second electrode 132 along the length direction C of the accommodating structure 11 , is disposed around the circumferential direction of the accommodating structure 11 , and is electrically connected to the heating film 12 . Specifically, the third electrode 133 can be disposed corresponding to the position of the midline plane M of the containing structure 11 .

The third electrode 133 is specifically used to be electrically connected to the negative electrode (or positive electrode) of the power supply component 20 . After the first electrode 131 , the second electrode 132 and the third electrode 133 are energized, the heating film 12 is located between the first electrode 131 and the third electrode 133 , and the heating film 12 is located between the second electrode 132 and the third electrode 133 The portion in between forms a vortex along the length direction C of the containing structure 11 .

In a specific embodiment, the width of the heating film 12 between the first electrode 131 and the third electrode 133 is different from the width of the heating film 12 between the second electrode 132 and the third electrode 133 to form two according to the intended design. areas with different temperatures.

The heating component 10 provided in this embodiment heats the aerosol-generating product 2 through infrared radiation. Compared with resistance heating or electromagnetic heating solutions, because infrared rays have certain penetrability and do not require a medium, the heating efficiency is high and can effectively The preheating efficiency of the aerosol-generating product 2 is improved, and the temperature difference between the inside and outside of the aerosol-generating product 2 can be effectively reduced, thereby affecting the aerosol-generating product 2. The glue-generating product 2 is baked more uniformly, thereby avoiding the problem of local high temperatures causing the aerosol-generating product 2 to be burned. At the same time, by arranging the heating film 12 so that the power density on both sides of the midpoint in the length direction C of the containment structure 11 is different, the temperature field can be designed as expected, which facilitates the design of other asymmetric high-temperature region locations. In addition, the accommodation structure 11 is divided into two regions with the same area by taking a plane M perpendicular to the length direction C of the accommodation cavity 110 and passing through the midpoint as a dividing line, and the portion of the heating film 12 located in the first region A is The resistance is different from the resistance of the part located in the second area B, so as to form two areas with different temperatures on the containment structure 11, and the location of the high-temperature area suitable for atomization of the aerosol-generating product 2 on the containment structure 11 is purposefully designed, to increase the rate of aerosol generation. In addition, by further making the resistance of the part of the heating film 12 located in the first area A smaller than the resistance of the part located in the second area B, so that the temperature of the first area A of the containing structure 11 is higher than the temperature of the second area B, This effectively improves the atomization efficiency of the first area A and accelerates the generation speed of aerosol.

In the second embodiment, see Figure 17, which is a transverse cross-sectional view of the heating assembly 10 provided in the second embodiment of the present application; a second heating assembly 10 is provided, which is different from the heating assembly 10 provided in the first embodiment. What is important is that the radiation layer 112 is disposed on the outer surface of the side wall of the base 111 .

In this embodiment, as shown in FIG. 17 , when the radiation layer 112 is an insulating radiation layer, the heating film 12 is specifically disposed on a side surface of the radiation layer 112 facing away from the base 111 . The heat generated after the heating film 12 is energized is directly conducted to the radiation layer 112. The radiation layer 112 is heated to generate infrared rays. The infrared rays penetrate the transparent base 111 and enter the containing cavity 110 to heat the aerosol-generating product 2 contained in the containing cavity 110. . In this embodiment, the aerosol-generating product 2 may also be in direct contact with the transparent substrate 111 to directly conduct heat from the substrate 111 to the aerosol-generating product 2 for heating; or, the aerosol-generating product 2 may be spaced apart from the substrate 111 .

When the radiation layer 112 is made of a non-insulating material, as shown in Figure 18, Figure 18 is a transverse cross-sectional view of the heating component 10 provided by another specific embodiment of the present application; in order to avoid short circuit of the heating film 12; the radiation layer 112 is away from the base 111 A second insulating layer 114 is also provided on the surface, and the second insulating layer 114 is located between the radiation layer 112 and the heating film 12 .

In the third embodiment, refer to FIG. 19 , which is a transverse cross-sectional view of the heating component 10 provided in the third embodiment of the present application; another heating component 10 is provided, which is different from the heating component 10 provided in the above embodiment in that the receiving structure 11 includes a base 111 .

The base body 111 is in the shape of a hollow tube, and the base body 111 includes a main body and infrared radiation materials dispersed in the main body. The main body forms a receiving cavity 110 and a proximal opening communicating with the receiving cavity 110 to receive the aerosol-generating product 2 . The base 111 radiates infrared rays when heated to heat the aerosol-generating article 2 . It can be understood that in this embodiment, the base 111 itself radiates infrared rays when heated, and no infrared layer is added on the surface of the base 111 . The base 111 can be specifically a quartz tube.

Of course, in order to increase the amount of radiated infrared rays and increase the heating speed, an infrared radiating layer can also be further provided on the surface of the substrate 111; details can be found above and will not be described again here.

The above descriptions are only embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies fields are equally included in the scope of patent protection of this application.

Claims

A heating component, including:

a receiving structure having a proximal opening for receiving an aerosol-generating article through the proximal opening and radiating infrared rays to heat the aerosol-generating article when heated;

A heating film, covering the containment structure in a planar shape, is used to heat the containment structure when electricity is applied; and the heating film is configured such that the power density on both sides of the midpoint in the length direction of the containment structure is different. ;

A power supply electrode is electrically connected to the heating film to provide power to the heating film.
The heating assembly of claim 1, wherein:

A plane perpendicular to the length direction of the receiving structure and passing through the midpoint divides the surface of the receiving structure into a first area and a second area; the second area is located in the first area away from the near The side with an open end;

The resistance density per unit area of the heating film in the first region is different from the resistance density per unit area of the heating film in the second region.
The heating assembly of claim 2, wherein:

The heating film includes:

A first heating part is provided in the first area;

The second heating part is arranged in the second area and is spaced apart from the first heating part along the length direction of the accommodation structure; and both the first heating part and the second heating part are along the length of the accommodation structure. extends in the circumferential direction.
The heating assembly of claim 3, wherein:

The first heating part and the second heating part are both arranged around the circumference of the receiving structure, and the materials and thicknesses of the first heating part and the second heating part are the same, and the first heating part The heating part and the second heating part have different widths along the length direction of the containing structure.
The heating assembly of claim 2, wherein:

A plane perpendicular to the length direction of the receiving structure and passing through the midpoint divides the surface of the receiving structure into a first area and a second area; the second area is located in the first area away from the near The side with an open end;

The heating film is a continuous film layer structure, and part of the heating film is located in the first area, and the remaining part is located in the second area.
The heating assembly according to claim 5, wherein the heating film is arranged around the circumference of the receiving structure, and the material and thickness of the heating film are uniform; the heating film is located in the first area The width of the portion is different from the width of the portion of the heating film located in the second area.
The heating assembly according to claim 4, wherein the width of the portion of the heating film located in the first area is greater than the width of the portion of the heating film located in the second area.
The heating assembly of claim 1, wherein:

The heating film is expanded into a rectangular shape along the circumferential direction of the containing structure.
The heating assembly of claim 2, wherein:

The power supply electrode includes:

The first electrode includes a first power supply part and a first extension part; the first power supply part is located at the first end of the accommodation structure, and the first extension part extends from the first power supply part along the direction of the accommodation structure. Extends in the length direction and contacts the portion of the heating film located in the first area and the portion located in the second area to achieve electrical connection;

The second electrode is spaced apart from the first electrode and includes a second power supply part and a second extension part; the second power supply part is located at the first end or the second end of the receiving structure, and the second extension part Extends from the second power supply part along the length direction of the receiving structure, and contacts the part of the heating film located in the first area and the part located in the second area to achieve electrical connection; and along the In the circumferential direction of the receiving structure, the second extension part at least partially overlaps the first extension part.
The heating assembly according to claim 9, wherein the second power supply part is located at the first end of the receiving structure, and the first extension part and/or the second extension part extends from the first end of the receiving structure. The first end extends to the second end of the receiving structure.
The heating assembly according to claim 9, wherein the second power supply part is located at the second end of the receiving structure, and the first extension part extends from the first power supply part to close to the receiving structure. The position of the second end is spaced apart from the second power supply part;

The second extension part extends from the second power supply part to a position near the first end of the receiving structure and is connected with the The first power supply parts are arranged at intervals.
The heating assembly of claim 2, wherein:

The power supply electrode includes:

A first electrode is provided at the first end of the receiving structure, extends around the circumferential direction of the receiving structure, and is electrically connected to the first end of the heating film along the length direction of the receiving structure;

A second electrode is provided at the second end of the receiving structure, extends around the circumferential direction of the receiving structure, and is electrically connected to the second end of the heating film along the length direction of the receiving structure;

A third electrode is disposed between the first electrode and the second electrode along the length direction of the accommodation structure, extends around the circumferential direction of the accommodation structure, and is electrically connected to the heating film; wherein , the width of the heating film between the first electrode and the third electrode is different from the width of the heating film between the second electrode and the third electrode.
The heating assembly of claim 1, wherein:

The containment structures include:

The base body is in the shape of a hollow tube and is used to accommodate the aerosol-generating product;

A radiation layer is provided on the surface of the base body and is used to radiate infrared rays to heat the aerosol-generating article when heated.
The heating assembly of claim 13, wherein:

The radiating layer is disposed on the inner surface of the side wall of the base body, and the heating film is disposed on a side of the base body away from the radiating layer; or

The radiation layer is disposed on the outer surface of the side wall of the base body, and the heating film is disposed on a side of the radiation layer facing away from the base body.
The heating assembly according to claim 1, wherein the receiving structure includes:

The base body is in the shape of a hollow tube and includes a main body and an infrared radiation material dispersed in the main body; the base body is used to accommodate an aerosol-generating substrate, and when heated, radiates infrared rays to heat the aerosol-generating product;

Wherein, the heating film and the electrode are arranged on the side where the outer surface of the side wall of the base body is located.
The heating assembly of claim 15, wherein the base body is a quartz tube.
An aerosol generating device, including:

The heating component is the heating component as claimed in claim 1;

A power supply component is electrically connected to the heating component and used to supply power to the heating component.
An aerosol generating system, including:

The aerosol generating device is the aerosol generating device according to claim 17;

Aerosol-generating articles.
The aerosol generating system of claim 18, wherein:

The aerosol-generating product is contained in the containing structure of the aerosol-generating device and is in direct contact with the inner surface of the side wall of the containing structure; or,

The aerosol-generating product is contained in the containing structure and spaced apart from the inner surface of the side wall of the containing structure.