WO2023179108A1

WO2023179108A1 - Heating assembly and aerosol generation apparatus

Info

Publication number: WO2023179108A1
Application number: PCT/CN2022/138148
Authority: WO
Inventors: 郭聪慧; 郭玉; 刘小力; 冼小毅; 周亚林; 黄祖富; 向宇峰
Original assignee: 深圳麦时科技有限公司
Priority date: 2022-03-22
Filing date: 2022-12-09
Publication date: 2023-09-28
Also published as: CN114788585A

Abstract

A heating assembly (1) and an aerosol generation apparatus. The heating assembly (1) comprises a base body (11), an infrared heat-emitting layer (20), a first electrode (301), a second electrode (302) and a first conductive module (303), wherein the base body (11) is used for the insertion or accommodation of a generated aerosol product; the infrared heat-emitting layer (20) is arranged on the base body (11) and is used for radiating infrared rays when being energized, so as to heat the generated aerosol product; the first electrode (301) and the second electrode (302) are arranged on the surface of the base body (11) at an interval and are respectively in contact with the infrared heat-emitting layer (20), and are respectively used to be connected to a power supply assembly (2), so as to supply power to the infrared heat-emitting layer (20); and the first conductive module (303) is arranged on the surface of the base body (11), the first conductive module (303) is respectively electrically connected to the first electrode (301) and the second electrode (302), and the first conductive module (303) is at least partially in contact with the infrared heat-emitting layer (20).

Description

Heating components and aerosol generating devices

Cross-references to related applications

This application claims priority based on Chinese patent application 202210287792X filed on March 22, 2022, the entire contents of which are incorporated herein by reference.

Technical field

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

Background technique

Low-temperature baking aerosol generation devices have attracted more and more attention and favor due to their advantages such as safety, convenience, health, and environmental protection.

The heating methods of existing aerosol generating devices are mainly resistive heating or electromagnetic heating. The heating principle is to transfer the heat of the heating component to the aerosol generating product through thermal conduction. However, this heating method has uneven heating and localized heating. High temperatures cause aerosol-generating products to easily burn. For this reason, the method of using infrared heating is gradually becoming more and more popular. At present, infrared heating aerosol generating devices generally connect the two ends of the infrared heating layer to positive and negative electrodes respectively to radiate infrared rays when the infrared heating layer is energized. , thereby heating the aerosol-generating product. In addition, the positive and negative electrodes of the electrodes need to extend into the area where the infrared heating layer is located, and factors such as the extension method of the positive and negative electrodes and the spacing between them need to be strictly controlled.

Therefore, the structure of existing aerosol generating devices using infrared heating is relatively complex.

Contents of the invention

This application provides a heating component and an aerosol generating device, aiming to solve the problem of a relatively complex structure in existing aerosol generating devices.

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 base body, an infrared heating layer, a first electrode, a second electrode and a first conductive module; wherein the base body is used to insert or accommodate aerosol-generating products; the infrared heating layer is arranged on the base body for Radiate infrared rays to heat the aerosol to generate products; the first electrode is disposed on the surface of the base body and is in contact with the infrared heating layer; the second electrode is disposed on the surface of the base body and is in contact with the infrared heating layer, and is spaced apart from the first electrode, wherein, The first electrode and the second electrode are respectively used to connect to the power component to supply power to the infrared heating layer; the first conductive module is disposed on the surface of the base body, and the first conductive module is electrically connected to the first electrode and the second electrode respectively. A conductive module is at least partially in contact with the infrared heating layer.

Wherein, the first difference value is different from the second difference value; where the first difference value is the difference between the resistivity of the first conductive module and the resistivity of the infrared heating layer when the power is supplied for the first time, and the second difference value is the difference between the resistivity of the first conductive module and the resistivity of the infrared heating layer when the power is supplied for the first time During the second period of time, the difference between the resistivity of the first conductive module and the resistivity of the infrared heating layer.

Wherein, in the non-energized state, the resistivity of the first conductive module is smaller than the resistivity of the infrared heating layer.

Wherein, the first conductive module has positive temperature coefficient characteristics.

Wherein, the first conductive module is used to detect the temperature of the heating component.

The infrared heating layer is disposed between the first electrode and the second electrode, and at least part of the infrared heating layer is located between the base and the first conductive module, or on a side surface of the first conductive module away from the base.

Wherein, the first electrode, the second electrode and the first conductive module are integrally formed; or one of the first electrode and the second electrode is integrally formed with the first conductive module.

Wherein, at least two different positions of the first conductive module along the extension direction have different cross-sectional areas.

Wherein, the first electrode, the second electrode and the first conductive module are all in a long strip shape; the first electrode and the second electrode are parallel to each other, and the first conductive module is arranged between the first electrode and the second electrode and extends from the first electrode Extend to the second electrode.

Wherein, there are multiple first conductive modules, the plurality of first conductive modules are arranged at intervals, each first conductive module is electrically connected to the first electrode and the second electrode respectively, and at least two of the plurality of first conductive modules The first conductive modules have different cross-sectional areas.

The extension direction of the plurality of first conductive modules is perpendicular to the extension direction of the first electrode and the second electrode.

Wherein, a plurality of first conductive modules are spaced apart along the axial direction of the base body and each first conductive module extends along the circumferential direction of the base body; or a plurality of first conductive modules are spaced apart along the circumferential direction of the base body and each first conductive module extends along the circumferential direction of the base body. A conductive module extends along the circumferential direction of the base body.

Wherein, the plurality of first conductive modules are all in straight lines and parallel to each other.

Wherein, the plurality of first conductive modules are all curved, and two adjacent first conductive modules are axially symmetrical.

Wherein, the cross-sectional area of the first conductive module is smaller than the cross-sectional area of the first electrode, or smaller than the cross-sectional area of the second electrode, or smaller than the cross-sectional area of any one of the first electrode and the second electrode.

Wherein, the above-mentioned heating component further includes a second conductive module, which is disposed on the base and connected between two adjacent first conductive modules.

Wherein, the infrared heating layer is disposed between the first electrode and the second electrode.

The base body is in the shape of a hollow column, with a receiving cavity for aerosol-generating products formed inside; the infrared heating layer, the first electrode, the second electrode and at least one first conductive module are arranged on the outer surface and/or the inner surface of the base body.

In order to solve the above technical problems, another technical solution adopted by this application is to provide an aerosol generating device. The aerosol generating device includes 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, and the heating component is the above-mentioned heating component; wherein, the power supply component is electrically connected to the heating component, For supplying power to the heating element.

Embodiments of the present application provide a heating component and an aerosol generating device. The heating component is provided with a base body to insert or accommodate an aerosol-generating product; at the same time, it is provided with an infrared heating layer, a first electrode and a second electrode to generate infrared heat. The layer is in contact with the first electrode and the second electrode, so that when the infrared heating layer is energized, the infrared heating layer radiates infrared rays outward, thereby heating and atomizing the aerosol to generate the product through highly penetrating infrared rays; compared to the traditional The heat conduction heating method has the characteristics of better heating uniformity, rapid heating and sufficient baking, effectively ensuring sufficient mist output and a better suction experience; at the same time, it can avoid aerosols caused by local high temperatures in aerosol-generating products. The product is burned. In addition, by arranging the first conductive module, the first conductive module is connected to the first electrode and the second electrode respectively, and the first conductive module is at least partially in contact with the infrared heating layer, so that the first conductive module and the contact area are The infrared heating layer forms a circuit in parallel, and the first conductive module can be directly connected to the first electrode and the second electrode. There is no need to strictly preset between the first conductive module and the first electrode, or between the first conductive module and the second electrode. Leaving a spacing makes the structure simpler and can effectively simplify the manufacturing process.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts, among which:

Figure 1 is a schematic structural diagram of a heating assembly provided by an embodiment of the present application;

Figure 2a is a cross-sectional view along line A-A in Figure 1;

Figure 2b is a schematic structural diagram of a base body, an infrared heating layer and a first conductive module provided by another embodiment of the present application;

Figure 3 is a schematic structural diagram of the first conductive module, the first electrode, the second electrode and the infrared heating layer provided in the first embodiment of the present application after unfolding;

Figure 4 is a schematic structural diagram of the first conductive module, the first electrode, the second electrode and the infrared heating layer according to the second embodiment of the present application after unfolding;

Figure 5 is a schematic structural diagram of the first conductive module, the first electrode, the second electrode and the infrared heating layer according to the third embodiment of the present application after unfolding;

Figure 6 is a schematic structural diagram of the first conductive module, the first electrode, the second electrode and the infrared heating layer according to the fourth embodiment of the present application after unfolding;

Figure 7 is a schematic structural diagram of the first conductive module, the first electrode, the second electrode and the infrared heating layer according to the fifth embodiment of the present application after unfolding;

Figure 8 is a schematic structural diagram of a heating assembly provided by another embodiment of the present application;

Figure 9 is a schematic structural diagram of a heating assembly provided by another embodiment of the present application;

Figure 10 is a schematic structural diagram of a heating assembly provided by yet another embodiment of the present application;

Figure 11 is a schematic structural diagram of an aerosol generating device provided by an embodiment of the present application.

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 structural diagram of a heating assembly provided by an embodiment of the present application. In this embodiment, a heating component 1 is provided. The heating component 1 is used to heat and atomize the aerosol-generating product when powered on to form an aerosol for the user to inhale. Among them, the aerosol-generating product preferably uses a solid substrate, which may include one or more powders, granules, fragments, thin strips, strips or flakes of vanilla leaves, tobacco leaves, homogenized tobacco, and expanded tobacco. Alternatively, the solid matrix may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the matrix is heated. Of course, aerosol-generating products can also be liquid bases, such as oils and medicinal liquids with added aroma components. The following examples all take the aerosol-generating product using a solid matrix as an example.

As shown in FIG. 1 , the heating component 1 specifically includes a base 11 , an infrared heating layer 20 , a first electrode 301 , a second electrode 302 and a first conductive module 303 . The heating component 1 can be used in different fields, such as medical treatment, beauty, leisure smoking, health care and other fields.

Among them, the base 11 can be in the shape of a needle or a pin, and is used for inserting into the aerosol-generating product. Alternatively, the base body 11 is in the shape of a hollow tube, with a receiving cavity 111 formed inside, and the aerosol-generating product is removably received in the receiving cavity 111; the following embodiments all assume that the base body 11 is in the shape of a hollow tube. Specifically, the base 11 can be made of an infrared-transmissive insulating material, such as quartz glass, ceramics, mica and other high-temperature resistant and transparent insulating materials.

The infrared heating layer 20 is disposed on the base 11 and is used to radiate infrared rays to heat the aerosol-generating product when electricity is applied. In a specific embodiment, the infrared heating layer 20 is arranged around the entire outer surface of the base 11 and is located between the first electrode 301 and the second electrode 302 to radiate infrared rays when power is supplied, thereby utilizing the high penetration characteristics of infrared rays. The aerosol-generating product contained in the base 11 is heated and atomized to form an aerosol. Among them, due to the strong thermal radiation ability of infrared rays, infrared rays can penetrate the interior of aerosol-generating products and heat the entire product at the same time. Compared with conventional resistance heating methods or electromagnetic heating methods, this method improves heating efficiency. , and the heating uniformity is better, avoiding the problem of burning aerosol-generating products due to local high temperatures, ensuring sufficient mist output and a better suction experience. Of course, in other embodiments, the infrared heating layer 20 can also be disposed on the inner surface of the base 11. Specifically, it can be disposed around the entire surface or part of the inner surface of the base 11. Its shape, size, thickness, etc. can be set as needed. There are no specific restrictions on this application.

Among them, the infrared heating layer 20 may be composed of a conductive phase, infrared ceramic powder and glass. Among them, the conductive phase material can be selected from one or more of silver, silver-palladium alloy, stainless steel alloy, TiC, ZrC, SiC, TiB ₂ , ZrB ₂ and MoSi ₂ ; the infrared ceramic powder material can be selected from black silicon, One or more of cordierite, transition metal oxides and their synthetic series spinel, rare earth oxide, ion co-doped perovskite, silicon carbide, zircon and boron nitride. In specific embodiments, the material of the infrared heating layer 20 can be selected according to needs.

The infrared heating layer 20 can be formed on the entire outer surface of the substrate 11 by screen printing, coating, sputtering, printing or tape casting. Its thickness and area can be set as needed. The shape of the infrared heating layer 20 can be a continuous film. Shape, porous mesh or strip, etc., specifically can be made into a film-like surface heating parallel circuit. It can be understood that in order to make the heating effect of the infrared heating layer 20 more uniform, its thickness is consistent everywhere on the base 11 . In this embodiment, the infrared heating layer 20 is an infrared ceramic coating. When the infrared heating layer 20 is powered on, it radiates infrared rays to heat the aerosol to generate the product. The wavelength of infrared heating is 2.5um ~ 20um. Due to the characteristics of heated aerosol-generated products, the heating temperature usually needs to be above 350°C, and the extreme value of energy radiation is mainly in the 3 ~ 5um band.

In other embodiments, the infrared heating layer 20 can also be disposed on the inner surface of the base 11 , surrounding the inner surface along the circumference of the base 11 and extending along the axial direction of the base 11 , and its shape, thickness, and area can be set as needed; infrared heating The materials and manufacturing processes of layer 20 are the same as those mentioned in the above embodiments, and will not be described again here.

The first electrode 301 and the second electrode 302 are disposed on the surface of the base 11, and are disposed oppositely along the radial direction of the base 11, and are respectively in contact with the infrared heating layer 20 to achieve electrical connection with the infrared heating layer 20. In a specific embodiment, the first electrode 301 and the second electrode 302 are used to electrically connect with the battery assembly 21 to provide power to the infrared heating layer 20 and the first conductive module 303 . Of course, in other embodiments, the first electrode 301 and the second electrode 302 can also be disposed on a side surface of the infrared heating layer 20 facing away from the base 11 , which facilitates processing and reduces processing difficulty. It should be noted that the first electrode 301 and the second electrode 302 are disposed on the surface of the base 11, and can be disposed on the outer surface or the inner surface of the base 11. Their shape, size, thickness, etc. can be set as needed. This application does not mention this. No specific restrictions are imposed.

Specifically, the first electrode 301 and the second electrode 302 may be elongated and parallel to each other. The first electrode 301 and the second electrode 302 can be specifically a conductive coating or a conductive sheet, and their shape, size and thickness can be set as needed.

The first conductive module 303 is disposed on the surface of the base 11 and is electrically connected to the first electrode 301 and the second electrode 302. At the same time, at least part of the first conductive module 303 is in contact with the infrared heating layer 20. This arrangement is such that the first conductive module 303 and The infrared heating layer 20 in its contact area forms a parallel circuit, and the first conductive module 303 can be directly connected to the first electrode 301 and the second electrode 302. It does not need to be strictly between the first conductive module 303 and the first electrode 301, or between the first conductive module 303 and the first electrode 301. A gap is reserved between a conductive module 303 and the second electrode 302, making the structure simpler and effectively simplifying the manufacturing process.

The area where the heating component 1 corresponds to the first conductive module 303 and the infrared heating layer 20 is defined as a high-resistance conductive module area. It should be noted that the first conductive module 303 is at least partially in contact with the infrared heating layer 20, which may be stacked in contact, or the first conductive module 303 and the infrared heating layer 20 may be disposed on the same layer on the base 11 and in contact. Specifically, Set it up as needed, there are no restrictions.

Further, after the heating component 1 is powered on, the difference in resistivity between the first conductive module 303 and the infrared heating layer 20 is the first difference when the power is on for the first time; when the power is on for the second time, the difference between the resistivity of the first conductive module 303 and the infrared heating layer 20 The difference in resistivity of the heating layer 20 is a second difference; wherein the first difference is different from the second difference. That is, during the power-on process, there are at least two different time nodes, and the difference in resistivity between the first conductive module 303 and the infrared heating layer 20 is different, that is, the difference in resistivity between the first conductive module 303 and the infrared heating layer 20 The difference will change with the power-on time.

In a specific embodiment, the relationship between the resistivity of the first conductive module 303 and the infrared heating layer 20 can be that the resistivity of the first conductive module 303 and the resistivity of the infrared heating layer 20 are different before power is supplied, and after a certain period of time, The resistivity of the first conductive module 303 gradually becomes the same as the resistivity of the infrared heating layer 20 . It is also possible that the resistivity of the first conductive module 303 and the resistivity of the infrared heating layer 20 are the same before power is turned on. After a certain period of time, the resistivity of the first conductive module 303 and the resistivity of the infrared heating layer 20 gradually tend to be different. The difference between the two can gradually become smaller or larger. Therefore, the difference between the power density of the high-resistance conductive module area of the heating component 1 at different power-on time nodes and the power density of the infrared heating layer 20 in the remaining areas is different, and the heating efficiency is also different. Based on this, the heating component can be Corresponding first conductive modules 303 are provided in different areas on 1 to meet the needs of different temperature fields.

In a specific embodiment, when the heating component 1 is not energized, the resistivities of the first conductive module 303 and the infrared heating layer 20 are different; this arrangement is such that after the heating component 1 is energized, in the initial stage of heating, the resistivities of the first conductive module 303 and the infrared heating layer 20 are different. The power at the part of the infrared heating layer 20 in contact with 303 is different from the power of the infrared heating layer 20 in other areas. That is, the power in the high-resistance conductive module area is different from the power of the infrared heating layer 20 in other areas, so the corresponding temperatures are also different. , to achieve control of different temperatures in different areas.

Specifically, when the heating component 1 is not energized, the resistivity of the first conductive module is smaller than the resistivity of the infrared heating layer; this setting is such that after the heating component 1 is energized, it contacts the first conductive module 303 in the initial stage of heating. The power of some infrared heating layers 20 is greater than the power of the infrared heating layers 20 in other areas, so that the temperature in this area rises faster and the intensity of the infrared rays emitted is higher. The aerosol-generating product corresponds to the high-resistance conductive module area. The position heats up quickly to ensure sufficient mist output in the initial stage of heating.

In a specific embodiment, the resistivity of the high-resistance conductive module area of the heating component 1 can be slightly smaller than the resistivity of the infrared heating layer 20 in other areas. This can make the power density of the high-resistance conductive module area consistent with that of the infrared heating layer 20 in other areas. The power density will not be too large, thereby achieving fine-tuning of the temperature field in the high-resistance conductive module area, making the temperature adjustment relatively gentle, and avoiding excessive fogging in the initial stage of heating, which will shorten the use time of aerosol-generating products. The problem.

Of course, in other embodiments, when the heating component 1 is not energized, the resistivity of the first conductive module 303 is greater than the resistivity of the infrared heating layer 20; such an arrangement makes the heating component 1, in the initial stage of heating, and The power at the part of the infrared heating layer 20 in contact with the first conductive module 303 is less than the power of the infrared heating layer 20 in the remaining areas, so that the temperature of the remaining areas rises faster and the intensity of the emitted infrared rays is higher, and the aerosol-generating product The position corresponding to this area heats up quickly to ensure sufficient mist output in the initial stage of heating.

In a specific embodiment, please refer to Figure 2a, which is a cross-sectional view along A-A in Figure 1; at least part of the infrared heating layer 20 is located between the base 11 and the first conductive module 303; that is, the first conductive module 303 is formed on the infrared The heating layer 20 has a side surface facing away from the base 11 . In another embodiment, please refer to Figure 2b. At least part of the infrared heating layer 20 is located on the side surface of the first conductive module 303 facing away from the base 11; that is, the first conductive module 303 is disposed on the surface of the base 11, and the infrared heating layer 20 part covers the first conductive module 303 , and the remaining part is disposed on the surface of the base 11 . Alternatively, the infrared heating layer 20 and the first conductive module 303 are disposed on the same layer on the surface of the base 11 and are at least partially in contact with each other. The relative positions of the infrared heating layer 20 and the first conductive module 303 provided in this application on the base 11 are more flexible, and can be selected according to the manufacturing process or other needs.

Among them, the first conductive module 303 can be set at a preset position of the heating component 1 as needed to form a high-temperature area that rapidly heats up at the preset position, so that the aerosol-generating product corresponding to the high-temperature area can be quickly atomized to ensure that The amount of mist produced at the initial stage of heating. Among them, the preset position can be a position far away from the suction nozzle of the aerosol generating device to prevent the problem of burning the mouth due to excessive temperature; of course, it can also be any other position far away from the suction nozzle; the specific setting can be based on actual conditions.

Further, the first conductive module 303 has a positive temperature coefficient (PTC) characteristic and is made of a material with a positive temperature coefficient (PTC) characteristic. Specifically, a PTC material with a corresponding temperature coefficient and Curie temperature can be selected as needed; For example, barium titanate semiconductor ceramics, high molecular polymer materials, etc. Among them, Curie temperature refers to the temperature when the resistance value begins to increase stepwise. The positive temperature coefficient characteristic of the first conductive module 303 causes the infrared heating layer 20 in the area in contact with it to form a parallel circuit, so the parallel resistance of this area on the corresponding heating component 1 is smaller than the resistance of other areas. The current flowing through the infrared heating layer 20 in this area is larger and the power density is larger, so the temperature in this area heats up faster than other areas; when the resistance of the first conductive module 303 gradually increases with the increase in temperature, this area The total resistance after parallel connection also gradually increases, so that the current flowing through the infrared heating layer 20 in this area tends to be consistent with the current flowing through the infrared heating layer 20 in other areas, and the power density also tends to be consistent, thereby achieving the goal of air protection. The sol generates a uniform heating effect on the product.

In a specific embodiment, since the first conductive module 303 has PTC characteristics, the heating component 1 can also realize the temperature measurement function of the heating component 1 by monitoring the resistance of the first conductive module 303, thereby regulating the temperature field of the heating component 1. In order to achieve the best atomization effect of aerosol-generating products, there is no need to add additional thermocouples and other temperature measurement components, further simplifying the structure.

Specifically, the first conductive module 303 is integrally formed with the first electrode 301 and the second electrode 302, or the first conductive module 303 is integrally formed with one of the first electrode 301 and the second electrode 302; to facilitate preparation. Specifically, the first conductive module 303 can be formed on the substrate 11 together with the first electrode 301 and the second electrode 302 by coating, silk screen printing, sputtering or printing, or the first conductive module 303 can be formed with the first electrode 301 and One of the second electrodes 302 is formed on the base 11 in the same manner. Part of the infrared heating layer 20 is disposed between the base 11 and the first and

second electrodes

301 and 302 and the first conductive module 303 , or part of the infrared heating layer 20 is disposed between the first and

second electrodes

301 and 302 and the first conductive module 303 . The conductive module 303 is on a side surface facing away from the base 11 .

Furthermore, at least two different positions of the first conductive module 303 along the extension direction have different cross-sectional areas; then when electric heating is applied, the resistance values of different areas of the first conductive module 303 along the extension direction are different. As a result, the temperatures are also different to achieve precise temperature adjustment in local areas; the cross-sectional areas at different locations can be set according to needs, and there are no specific restrictions on this.

In one embodiment, please refer to FIG. 3 , which is a schematic structural diagram of the first conductive module, the first electrode, the second electrode, and the infrared heating layer provided in the first embodiment of the present application after unfolding. The first electrode 301, the second electrode 302 and the first conductive module 303 can all be in a long strip shape, that is, a linear shape. The first electrode 301 and the second electrode 302 are parallel to each other, and the first conductive module 303 is disposed between the first electrode 301 and the second electrode 302 and extends from the first electrode 301 to the second electrode 302 . Specifically, the extension direction of the first conductive module 303 is perpendicular to the extension directions of the first electrode 301 and the second electrode 302 .

In other embodiments, the angle formed by the extending direction of the first conductive module 303 and the extending directions of the first electrode 301 and the second electrode 302 may also be between 0°˜90° or between 90°˜180°, or Includes 0° and 180°. Specifically, the angle can be set according to the needs of the temperature field of the corresponding area on the heating component 1, so that the corresponding area of the heating component 1 can preset the required temperature field, and the best atomization effect can be achieved when heating the aerosol to generate the product.

In another embodiment, please refer to FIG. 4 , which is a schematic structural diagram of the first conductive module, the first electrode, the second electrode, and the infrared heating layer provided in the second embodiment of the present application after unfolding. The first electrode 301 and the second electrode 302 are elongated and parallel to each other. The first conductive module 303 is disposed between the first electrode 301 and the second electrode 302 and extends from the first electrode 301 to the second electrode 302. A conductive module 303 is specifically in a curve shape, which can also be understood as a wavy shape. In this specific embodiment, the overall extension direction B of the first conductive module 303 is perpendicular to the extension directions of the first electrode 301 and the second electrode 302 respectively. Of course, in other embodiments, the angle formed by the overall extension direction B of the wavy first conductive module 303 and the extension directions of the first electrode 301 and the second electrode 302 can also be between 0° and 90° or 90°. ~180°, excluding 0° and 180°. Specifically, the angle can be set according to the needs of the temperature field of the corresponding area on the heating component 1, so that the corresponding area of the heating component 1 can preset the required temperature field, and the best atomization effect can be achieved when heating the aerosol to generate the product.

Among them, since the linear distance between the first electrode 301 and the second electrode 302 is equal, and the cross-sectional area and resistivity of the first conductive module 303 are the same, the total length of the curve of the wavy first conductive module 303 is greater than the total linear length of the linear first conductive module 303 corresponding to Figure 3, according to the formula: R (resistance) = ρ (resistivity) L (conductor length) / S (conductor cross-sectional area); it can be seen that compared to In the linear first conductive module 303 in Figure 3, the resistance of the first conductive module 303 corresponding to Figure 4 is larger. The total resistance of the high-resistance conductive module area in the corresponding embodiment of Figure 4 is greater than that in the corresponding embodiment of Figure 3. The total resistance of the high-resistance conductive module area is larger, then the heating rate of the high-resistance conductive module area in the corresponding embodiment of Figure 4 is smaller than the power density of the high-resistance conductive module area in the corresponding embodiment of Figure 3. According to actual It is necessary to further fine-tune the temperature field of the heating component 1.

Specifically, the cross-sectional area of the first conductive module 303 is smaller than the cross-sectional area of the first electrode 301; or the cross-sectional area of the first conductive module 303 is smaller than the cross-sectional area of the second electrode 302; or the cross-sectional area of the first conductive module 303 is smaller than the cross-sectional area of the first conductive module 303. The cross-sectional area is smaller than the cross-sectional area of the first electrode 301 and smaller than the cross-sectional area of the second electrode 302 . This can make the resistance of the first conductive module 303 larger than the resistance of the first electrode 301 and/or the second electrode 302, so that when the first electrode 301 and the second electrode 302 are electrically connected to the positive and negative electrodes of the power supply respectively, the resistance will not be short-circuited by the first conductive module 303. It can be understood that in specific embodiments, the position and cross-sectional area of the first conductive module 303 can be specifically set according to the area of the heating component 1 that needs to be heated quickly and the needs of the temperature field in this area.

In a specific embodiment, the thicknesses of the first electrode 301, the second electrode 302 and the first conductive module 303 are generally small and the thicknesses of the three are basically the same. Therefore, the larger the cross-sectional area, the larger the width; therefore, the third The cross-sectional area of a conductive module 303 is smaller than the cross-sectional area of the first electrode 301, or the cross-sectional area of the first conductive module 303 is smaller than the cross-sectional area of the second electrode 302, or the cross-sectional area of the first conductive module 303 is smaller than the cross-sectional area of the first conductive module 303. The cross-sectional area of one electrode 301 is smaller than the cross-sectional area of the second electrode 302; it can be understood that the width of the first conductive module 303 is smaller than the width of the first electrode 301, or the width of the first conductive module 303 is smaller than the width of the second electrode 302. The width, or the width of the first conductive module 303 is smaller than the width of the first electrode 301 and smaller than the width of the second electrode 302 . It should be noted that the width mentioned here is the size of the first electrode 301, the second electrode 302 or the first conductive module 303 along the direction perpendicular to its extension.

Further, in other embodiments, the number of the first conductive modules 303 may be multiple, and the plurality of first conductive modules 303 are arranged at intervals, and each first conductive module 303 is electrically connected to the first electrode 301 and the second electrode 302 respectively. Connection, that is, each first conductive module 303 extends from the first electrode 301 to the second electrode 302; and at least two of the plurality of first conductive modules 303 have different cross-sectional areas. It is easy to understand that if the cross-sectional area of the first conductive module 303 is different, its resistance value will be different, and its total resistance in the corresponding area of the heating component 1 will also be different. Therefore, the first conductive module 303 with different cross-sectional area will have different resistance in the heating component 1 The power density of the corresponding areas is also different, so the heating rates of the corresponding areas are different, that is, multiple different temperature fields are formed correspondingly; thus, the first conductive module 303 with a large cross-sectional area can be placed at the corresponding position of the area that requires rapid heating. , setting a slightly smaller cross-sectional area at the corresponding position of the adjacent area, so that the adjacent area of the heating component 1 can achieve a temperature gradient decrease or increase, enriching the temperature distribution of the temperature field, and adapting to the generation of more types of aerosols The heating requirements of the product.

In a specific implementation, please refer to FIG. 5 , which is a schematic structural diagram of the first conductive module, the first electrode, the second electrode, and the infrared heating layer provided in the third embodiment of the present application after unfolding. The number of the first conductive modules 303 is two. The two first conductive modules 303 are linear and parallel to each other. The extension direction of the two first conductive modules 303 is consistent with the extension direction of the first electrode 301 and the second electrode 302 . Vertically, the cross-sectional areas of the two first conductive modules 303 are the same, that is, in this embodiment, the resistances of the two first conductive modules 303 are the same, and the areas of the corresponding areas on the heating component 1 are the same, so the heating of the corresponding areas The speed is also the same, so that more areas on the heating component 1 can be heated together quickly, and the aerosol-generating products can be quickly heated and atomized, and the mist can be produced faster.

Of course, in this embodiment, the number of the first conductive modules 303 can also be three, four or five, etc., and can be set according to needs. Furthermore, the cross-sectional areas, shapes or extension directions of the plurality of first conductive modules 303 may not be exactly the same to control different temperature fields to meet the heating requirements of different aerosol-generating products; for example, multiple The extension direction of one of the linear first conductive modules 303 is perpendicular to the extension direction of the first electrode 301, and the other one is inclined at an included angle with the first electrode 301, and the included angle is less than 90°.

In another embodiment, please refer to FIG. 6 , which is a schematic structural diagram of the first conductive module, the first electrode, the second electrode, and the infrared heating layer according to the fourth embodiment of the present application after unfolding. The number of the first conductive modules 303 is two. The two first conductive modules 303 are both curved, that is, wavy, and the two wavy first conductive modules 303 are axially symmetrical along their extension direction; the two first conductive modules 303 are axially symmetrical. The extension direction B of the conductive module 303 is perpendicular to the extension direction of the first electrode 301 and the second electrode 302, and the cross-sectional areas of the two first conductive modules 303 are the same. Compared with the third embodiment in FIG. 5 , the distribution range of the first conductive modules 303 in the corresponding areas of the heating component 1 in this embodiment is wider. In another embodiment, the number of the first conductive modules 303 may also be multiple. The plurality of first conductive modules 303 are all curved, and two adjacent first conductive modules 303 are axially symmetrical; The number of 303 can be set as needed, and there is no specific limit on this. In other embodiments, the cross-sectional areas and shapes of the plurality of first conductive modules 303 may also be different to control different temperature fields.

Please refer to FIG. 7 , which is a schematic structural diagram of the first conductive module, the first electrode, the second electrode, and the infrared heating layer according to the fifth embodiment of the present application after unfolding. In one embodiment, the heating component 1 further includes a second conductive module 304. The second conductive module 304 is disposed on the base 11 and connected between two adjacent first conductive modules 303. Specifically, the second conductive module 304 is made of the same material as the first conductive module 303, which is also a PTC characteristic material. The second conductive module 304 is in at least partial contact with the infrared heating layer 20, and the second conductive module 304 is in contact with the first conductive module. 303 integrated molding. It is easy to understand that the second conductive module 304 has the same function as the first conductive module 303, which can increase the heating rate of the corresponding area on the heating component 1. The second conductive module 304 and the first conductive module 303 cooperate with each other to form a required temperature field.

In this embodiment, the second conductive module 304 is located between the two first conductive modules 303 and extends vertically from one first conductive module 303 to the other first conductive module 303. The second conductive module 304 is specifically curved. , it can be understood that in this embodiment, the extension direction of the second conductive module 304 is the overall extension direction C of the second conductive module 304 . Similarly, in other embodiments, the number of second conductive modules 304 may be multiple. The plurality of second conductive modules 304 are arranged at intervals, and each second conductive module 304 is connected to two adjacent first conductive modules 303 respectively. The shape of each second conductive module 304 may be the same or different, and its cross-sectional area may be the same or different, so as to cooperate with the first conductive module 303 to form different temperature fields in corresponding areas of the heating component 1 .

In some other embodiments, the plurality of first conductive modules 303 and/or the plurality of second conductive modules 304 can also be a combination of the above five embodiments to form temperatures with different heating rates in corresponding areas of the heating component 1 field to meet different needs. At the same time, the temperature of the corresponding different areas can also be monitored by detecting the resistance of the first conductive module 303 and/or the second conductive module 304 in different areas of the heating component 1, so as to adjust the power consumption during the heating process accordingly. , and there is no need to add additional thermocouples and other temperature measurement components.

In addition, in one example, the first electrode 301 and the second electrode 302 can be respectively connected to the positive electrode and the negative electrode of the power component at opposite ends of the base body 11 ; the first electrode 301 and the second electrode 302 can also be connected to the base body 11 The same end is connected to the positive and negative poles of the power supply component respectively, and is not limited here.

Please refer to FIG. 8 , which is a schematic structural diagram of a heating assembly provided by another embodiment of the present application. In this embodiment, the plurality of first conductive modules 303 are the first conductive modules 303 involved in the above embodiment. The plurality of first conductive modules 303 are spaced apart along the axial direction of the base 11 and each first conductive module 303 Extending along the circumferential direction of the base body 11 ; the plurality of second conductive modules 304 are spaced apart along the circumferential direction of the base body 11 and each second conductive module 304 extends along the axial direction of the base body 11 . Referring to FIG. 9 , in yet another embodiment, a plurality of first conductive modules 303 are spaced apart along the circumferential direction of the base 11 and each first conductive module 303 extends along the axial direction of the base 11 ; a plurality of second conductive modules 303 are spaced apart along the circumferential direction of the base 11 . The modules 304 are spaced apart along the axial direction of the base body 11 and each second conductive module 304 extends along the circumferential direction of the base body 11 . The spacing directions and extension directions of the plurality of first conductive modules 303 and/or the plurality of second conductive modules 304 can be set as needed.

In other embodiments, the heating component 1 may also be a plate-like structure, used to be inserted into the aerosol-generating article to heat and atomize it. Please refer to FIG. 10 , which is a schematic structural diagram of a heating assembly provided by yet another embodiment of the present application. The heating component 1 provided in this embodiment has a plate-like structure. The base body 11 includes a rectangular body 112 and a tip protrusion 113 extending outward from one side of the rectangular body along the axial direction D to facilitate the insertion of the heating component 1 into the aerosol-generating product. Among them, the first electrode 301 and the second electrode 302 are spaced apart on the rectangular body 112, and the first electrode 301 and the second electrode 302 are circumferentially arranged around the rectangular body 112; the infrared heating layer 20 is arranged on the first electrode 301 around the base body. and the second electrode 302, and is in contact with the first electrode 301 and the second electrode 302; the first conductive module 303 is in contact with at least part of the infrared heating layer 20, and is electrically connected with the first electrode 301 and the second electrode 302. connect. The structure of the heating component 1 provided in Figure 10 on the other side with respect to the first conductive module 303, the first electrode 301 and the second electrode 302, and the infrared heating layer 20 can be symmetrical or asymmetrical with the side shown in the figure. Both are available and can be set as needed. As in the above embodiment, the angle between the extension direction of the first conductive module 303 and the extension directions of the first electrode 301 and the second electrode 302 can be set arbitrarily, and the shape of the first conductive module 303 can also be set as needed; similarly , the number of first conductive modules 303 may be multiple. Of course, the heating component 1 provided in this embodiment may also include a second conductive module 304. The structure and function of the second conductive module 304 are as described above and will not be described again here.

In some embodiments, the heating component 1 may also be pin-shaped. The heating component 1 includes a cylindrical body and a tip protrusion extending outward along the axial direction of the cylindrical body to facilitate the insertion of the heating component 1 into the aerosol-generating article. It can be understood that the cylindrical heating component 1 provided in the above embodiment can be regarded as the cylindrical body in this embodiment. This embodiment adds a tip protrusion to one end of the heating component 1 provided in the above embodiment. . Specifically, the columnar body can be hollow or solid, and can be set as needed. In order to prevent the infrared heating layer 20, the first electrode 301, the second electrode 302, the first conductive module 303 and the second conductive module 304 from being corroded or contaminated by the aerosol-generating product, a protective layer can be provided on their surface, or they can be provided on the inner wall surface of the base 11 . It can be understood that the structure and function of the pin-shaped heating component 1 are the same as those described in the above embodiments, and can achieve the same technical effects, and will not be described again here.

The heating component 1 provided in the above embodiment is provided with a base 11 to insert or accommodate the aerosol-generating product; at the same time, the infrared heating layer 20, the first electrode 301 and the second electrode 302 are provided to generate infrared heat. The layer 20 is in contact with the first electrode 301 and the second electrode 302, so that when the infrared heating layer 20 is energized, the infrared heating layer 20 radiates infrared rays outward, thereby heating and atomizing the aerosol to generate products through highly penetrating infrared rays; Compared with thermal conduction heating methods, it has the characteristics of better heating uniformity, rapid heating and sufficient baking, effectively ensuring sufficient mist output and a better suction experience; at the same time, it can avoid local high temperatures in aerosol-generating products. A problem that causes aerosol-generating products to be scorched. In addition, by arranging the first conductive module 303 connected to the first electrode 301 and the second electrode 302 respectively, and stacking the first conductive module 303 with at least part of the infrared heating layer 20, the first conductive module 303 and its The stacked partial infrared heating layers 20 form a parallel circuit in the heating circuit, so that the total resistance of the area where the heating component 1 corresponds to the first conductive module 303 is smaller than the resistance of the infrared heating layer 20 in nearby areas, and the power density is lower. It is large and has a fast heating speed, which realizes rapid heating of local areas of the heating component 1, thereby enabling the heating component 1 to heat local aerosol-generated products in the early stage of heating, and the atomization speed is faster, effectively ensuring sufficient output in the early stage of heating. Amount of fog. Furthermore, by making the first conductive module 303 have PTC characteristics, the resistance of the first conductive module 303 continues to increase with the increase of temperature, and the total resistance of the heating component 1 in the area where the first conductive module 303 is located also increases with the temperature. increases continuously, so that the power density of the area where the first conductive module 303 is located gradually becomes equal to the power density of other areas corresponding to the infrared heating layer 20 on the heating component 1, thereby achieving the desired effect of heating the aerosol-generating product. Temperature equalization effect. In addition, since the first conductive module 303 has PTC characteristics, the heating component 1 can realize the temperature measurement function by monitoring the resistance of the first conductive module 303 without adding additional thermocouples and other temperature measurement elements.

The heating assembly 1 involved in the above embodiments can be used in an aerosol generating device. Please refer to FIG. 11 . FIG. 11 is an aerosol generating device provided by an embodiment of the present application. In this embodiment, an aerosol generating device is provided. The aerosol generating device includes the heating component 1 and the power supply component 2 related to the above embodiment. For the specific structure and function of the heating component 1, please refer to the relevant description of the heating component 1 provided in the above embodiments, and can achieve the same or similar technical effects, which will not be described again here.

The power supply component 2 is electrically connected to the heating component 1 and is used to supply power to the heating component 1 . The power supply assembly 2 may specifically include a battery pack 21 and a circuit 22. The battery pack 21 is used to supply power to the heating assembly 1, and the circuit 22 is used to guide current between the battery pack 21 and the heating assembly 1 and control the voltage of the heating assembly 1 to regulate The temperature of heating element 1. The battery pack 21 may be a dry cell battery, a lithium battery, or the like.

The above 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 this application, or directly or indirectly applied in other related technical fields, All are similarly included in the patent protection scope of this application.

Claims

A heating component, including:

A matrix for inserting or containing aerosol-generating products;

An infrared heating layer, arranged on the base body, is used to radiate infrared rays to heat the aerosol-generating product when power is applied;

A first electrode, disposed on the surface of the base body and in contact with the infrared heating layer;

A second electrode is disposed on the surface of the base body and in contact with the infrared heating layer, and is spaced apart from the first electrode; wherein the first electrode and the second electrode are respectively used to connect to a power supply component. , to supply power to the infrared heating layer;

A first conductive module is disposed on the surface of the base body, and the first conductive module is electrically connected to the first electrode and the second electrode respectively. The first conductive module is at least partially connected to the infrared heating layer. touch.
The heating assembly according to claim 1, wherein the first difference value is different from the second difference value, wherein the first difference value is the resistivity of the first conductive module and the The difference in resistivity of the infrared heating layer, the second difference is the difference between the resistivity of the first conductive module and the resistivity of the infrared heating layer when power is supplied for a second time.
The heating assembly according to claim 1, wherein in a non-energized state, the resistivity of the first conductive module is different from the resistivity of the infrared heating layer.
The heating assembly according to claim 3, wherein in a non-energized state, the resistivity of the first conductive module is less than the resistivity of the infrared heating layer.
The heating assembly of claim 1, wherein the first conductive module has positive temperature coefficient characteristics.
The heating component according to claim 5, wherein the first conductive module is used to detect the temperature of the heating component.
The heating component according to claim 1, wherein the infrared heating layer is disposed between the first electrode and the second electrode, and at least part of the infrared heating layer is located between the base and the third electrode. Between a conductive module, or located on a side surface of the first conductive module facing away from the base.
The heating assembly according to claim 1, wherein the first electrode, the second electrode and the first conductive module are integrally formed; or

One of the first electrode and the second electrode is integrally formed with the first conductive module.
The heating assembly according to claim 1, wherein the first conductive module has different cross-sectional areas at at least two different positions along the extension direction.
The heating assembly according to claim 1, wherein the first electrode, the second electrode and the first conductive module are all elongated; the first electrode and the second electrode are parallel to each other, The first conductive module is disposed between the first electrode and the second electrode and extends from the first electrode to the second electrode.
The heating assembly according to claim 10, wherein the number of the first conductive modules is multiple, and the plurality of first conductive modules are arranged at intervals, and each of the first conductive modules is connected to the first electrode respectively. It is electrically connected to the second electrode, and at least two of the plurality of first conductive modules have different cross-sectional areas.
The heating assembly according to claim 11, wherein an extending direction of the plurality of first conductive modules is perpendicular to an extending direction of the first electrode and the second electrode.
The heating assembly according to claim 11, wherein a plurality of the first conductive modules are spaced apart along the axial direction of the base body and each of the first conductive modules extends along the circumferential direction of the base body; or

A plurality of the first conductive modules are spaced apart along the circumferential direction of the base body, and each of the first conductive modules extends along the axial direction of the base body.
The heating assembly according to claim 13, wherein the plurality of first conductive modules are linear and parallel to each other.
The heating assembly according to claim 13, wherein the plurality of first conductive modules are all curved, and two adjacent first conductive modules are axially symmetrical.
The heating assembly according to claim 1, wherein the cross-sectional area of the first conductive module is smaller than the cross-sectional area of the first electrode; and/or

The cross-sectional area of the first conductive module is smaller than the cross-sectional area of the second electrode.
The heating assembly according to claim 1, further comprising a second conductive module disposed on the base and connected between two adjacent first conductive modules.
The heating assembly according to claim 1, wherein the base body is in the shape of a hollow column, and a receiving cavity for storing the aerosol-generating product is formed inside;

The infrared heating layer, the first electrode, the second electrode and at least one first conductive module are arranged on the outer surface and/or the inner surface of the base body.
An aerosol generating device, characterized in that it includes:

The heating component of claim 1, used to heat and atomize the aerosol-generating product when energized; and

A power supply component is electrically connected to the heating component and used to supply power to the heating component.