Heating assembly and aerosol generating device

Abstract

The utility model provides a heating assembly and an aerosol generation device, and belongs to the technical field of aerosol generation. The heating assembly comprises a heating body and a mounting seat; the mounting base is provided with a first end and a second end, the first end and the second end are oppositely arranged in the extending direction of the mounting base, a first mounting cavity and a second mounting cavity which are sequentially distributed in the direction from the first end to the second end are formed in the mounting base, and the first mounting cavity and the second mounting cavity are communicated; at least part of the structure of the heating body is inserted into the first installation cavity from the first end and extends into the second installation cavity, the inner diameter size of the first installation cavity is matched with the outer diameter size of the heating body, and the inner diameter size of the second installation cavity is larger than the outer diameter size of the heating body. The heating body can be fixed through the first mounting cavity and the second mounting cavity, and the gap exists between the heating body and the cavity wall of the second mounting cavity, so that the contact area of the heating body and the mounting base is reduced, heat transmitted to the mounting base by the heating body is reduced, and the energy consumption of the whole generating device is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and more particularly to a heating component and an aerosol generation device. Background Art

[0002] An aerosol generation device (hereinafter referred to as "generation device") is a type of product that uses the thermal effect of a heating element to heat an aerosol generation substrate disposed in its heating cavity, so that the aerosol generation substrate generates aerosol without combustion. The existing heating element is fixedly installed through a mounting seat. However, since the mounting seat is a solid structure, its contact area with the heating element is large, and the heat generated by the heating element will be transferred to the mounting seat in large quantities and quickly, and can be conducted to other components through the mounting seat, and even transferred to the outside through the housing, resulting in an increase in the surface temperature of the generation device and an increase in energy consumption. Summary of the Utility Model

[0003] The present application provides a heating component and an aerosol generation device, which can reduce the heat transferred to the mounting seat and reduce the energy consumption of the aerosol generation device.

[0004] The present application provides a heating component, including a heating element and a mounting seat, the mounting seat is used to fix the heating element; the mounting seat has a first end and a second end, the first end and the second end are oppositely arranged along the extending direction of the mounting seat; a first mounting cavity and a second mounting cavity are provided in the mounting seat, the first mounting cavity and the second mounting cavity are arranged in sequence along the direction from the first end to the second end, and the first mounting cavity and the second mounting cavity are communicated; at least part of the structure of the heating element is inserted into the first mounting cavity from the first end and extends into the second mounting cavity; the inner diameter size of the first mounting cavity matches the outer diameter size of the heating element, and the inner diameter size of the second mounting cavity is larger than the outer diameter size of the heating element.

[0005] In one embodiment, the mounting seat includes a mounting base body and an extending portion, the first mounting cavity penetrates through the mounting base body; the extending portion is arranged on the circumferential edge of the mounting base body, and the extending portion extends along the direction from the first end to the second end and forms the second mounting cavity.

[0006] In one embodiment, the mounting seat further includes an enclosing portion, the enclosing portion is arranged on the side of the extending portion away from the first end, and the second mounting cavity is formed between the enclosing portion and the extending portion.

[0007] In one embodiment, the heating element includes a heat conducting cover, a heating wire and an electrode, a receiving cavity is provided in the heat conducting cover, and the heating wire is arranged in the receiving cavity; the heating wire is electrically connected to a power supply component through the electrode.

[0008] In one embodiment, the mounting base is provided with a mounting hole, and the electrode passes through the mounting hole and is electrically connected to the heating wire.

[0009] In one embodiment, the heat conducting cover is made of one of alumina or zirconia.

[0010] In one embodiment, the heating element and the first mounting cavity are injection-molded into an integral structure.

[0011] In one embodiment, the heating assembly further includes a fixing frame, and the fixing frame is sleeved on the mounting base.

[0012] In one embodiment, the outer periphery of the mounting base is provided with a mounting groove, and a sealing ring is arranged in the mounting groove; the sealing ring is arranged between the mounting base and the fixing frame to seal the mounting base and the fixing frame.

[0013] Please provide an aerosol generating device itself, including a housing, the heating assembly as described above, a mounting frame, and a main control assembly. An installation space is provided in the housing; both the mounting frame and the heating assembly are arranged in the installation space; a receiving channel is provided in the mounting frame, and the receiving channel includes a proximal end and a distal end, and the proximal end and the distal end extend along the direction from the first end to the second end; the proximal end is for inserting an aerosol generating substrate, and the distal end is for inserting at least part of the structure of the heating assembly, and at least part of the structure of the heating element is inserted into the aerosol production substrate; the main control assembly is electrically connected to the heating assembly to provide the power required for the heating assembly to work and control the heating assembly to work.

[0014] According to the heating assembly in the above embodiment, it includes a heating element and a mounting base. The mounting base is provided with a first mounting cavity and a second mounting cavity that are communicated. At least part of the structure of the heating element can be inserted into the first mounting cavity from the first end and extend into the second mounting cavity. The inner diameter size of the first mounting cavity matches the outer diameter of the heating element, and the inner diameter size of the second mounting cavity is larger than the outer diameter of the heating element. Since the first mounting cavity and the second mounting cavity together form the installation space of the heating element, the heating element is stably installed in the generating device, making it in good and uniform contact with the aerosol generating substrate, thereby improving the use taste. Since the inner diameter size of the first mounting cavity matches the outer diameter size of the heating element, the heating element is fixed through the first mounting cavity. Since the inner diameter size of the second mounting cavity is larger than the outer diameter of the heating element, there is a gap between the heating element and the cavity wall of the second mounting cavity, thereby reducing the contact area between the heating element and the mounting base, reducing the heat transferred from the heating element to the mounting base. Since the heat is conducted through the air in the gap and the air heat conduction efficiency is low, it can also slow down the heat transfer speed from the heating element to the mounting base, thereby reducing the energy loss of the entire generating device. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a heating component in an embodiment;

[0016] Figure 2 It is an exploded view of the structure of a heating component in an embodiment;

[0017] Figure 3 It is a schematic structural diagram of a mounting base in an embodiment;

[0018] Figure 4 It is a cross-sectional view of the structure of a mounting base in an embodiment;

[0019] Figure 5 It is an exploded view of the structure of a heating element in an embodiment;

[0020] Figure 6 It is a cross-sectional view of the structure of an aerosol generating device in an embodiment.

[0021] Wherein: 100, outer housing; 110, installation space; 200, heating component; 210, heating element; 211, heat conducting cover; 2111, accommodating cavity; 2112, puncturing portion; 212, heating wire; 213, electrode; 220, mounting base; 221, first end; 222, second end; 223, first installation cavity; 224, second installation cavity; 225, mounting matrix; 2251, installation groove; 226, extension portion; 227, enclosing portion; 2271, installation hole; 230, fixing frame; 240, sealing ring; 300, mounting frame; 310, accommodating channel; 311, proximal end; 312, distal end; 320, mounting tube; 330, support member; 400, main control component; 410, PCB control circuit board; 420, battery; A, aerosol generating matrix. Detailed Embodiments

[0022] The present application will be further described in detail below in conjunction with the drawings through specific embodiments. Similar elements in different embodiments are labeled with related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification, which is to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0023] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operation steps involved in each embodiment can also be reordered or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and the drawings are only for clearly describing a certain embodiment and do not mean that they are essential components and / or sequences.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. And as used in this application, "connection" and "coupling", unless otherwise specified, both include direct and indirect connection (coupling).

[0025] This application provides an aerosol generating device (hereinafter referred to as the generating device), which can be used to heat an aerosol generating substrate A to generate an aerosol that can be used.

[0026] It should be noted that the aerosol referred to in the terms means a dispersion of solid particles or liquid particles in a gas. As used herein, "aerosol" generally can be used to refer to a substance that has been vaporized, atomized, in the form of a spray or jet, or otherwise transformed from a solid or liquid form into an inhalable form containing suspended solid or liquid drug particles.

[0027] As used herein, the term "aerosol generating substrate A" refers to any suitable compound or mixture of compounds that facilitates the formation of an aerosol (such as a stable aerosol that is substantially resistant to thermal degradation at the operating temperature of the system) during use. Suitable aerosol generating substrates A are well known in the art and include, but are not limited to: polyols, such as triethylene glycol, 1,3 - butanediol, and glycerol; esters of polyols, such as glycerol mono-, di-, or triacetate; and aliphatic esters of mono-, di-, or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate.

[0028] The aerosol generating substrate A can include nicotine. The aerosol generating substrate A can include water. The aerosol generating substrate A can include glycerol (also known as glycerin) which has a higher boiling point than nicotine. The aerosol generating substrate A can include propylene glycol. The aerosol generating substrate A can include plant - based materials. The aerosol generating substrate A can include a homogeneous plant matrix material. The homogeneous plant matrix material can contain volatile compounds. These compounds can be released from the aerosol generating substrate A when heated. The aerosol generating substrate A can be contained in a container to form a columnar structure with a preset length, etc.

[0029] Please refer to Figures 1 to 6, the generating device includes a housing 100, a heating component 200, a mounting bracket 300, and a main control component 400. An installation space 110 is provided inside the housing 100. The mounting bracket 300 and the heating component 200 are both arranged in the installation space 110. A receiving channel 310 is provided inside the mounting bracket 300. The receiving channel 310 includes a proximal end 311 and a distal end 312. The proximal end 311 is for the aerosol generating substrate A to be inserted, and the distal end 312 is for at least part of the structure of the heating component 200 to be inserted. At least part of the structure of the heating element 210 is inserted into the aerosol production substrate to bake and heat the aerosol production substrate to generate aerosol for the user to use. The main control component 400 is electrically connected to the heating component 200 to provide the power required for the heating component 200 to work and control its operation.

[0030] Please refer to Figure 6 , the housing 100 can be understood as a collection of related components that constitute the overall outer contour of the generating device. For example, the housing 100 can be assembled by combining one or more components, and corresponding assembly structures are provided inside or on the shell wall of the housing 100 to assemble other components of the generating device to the housing 100. For example, the PCB control circuit board 410, battery 420, etc. in the main control component 400 can be assembled inside the housing 100, and the operation buttons in the main control component 400 can be installed on the housing 100 in a way that is exposed outside the housing 100. With the help of the housing 100, users can carry, move, operate, and use the generating device.

[0031] In one embodiment, the mounting bracket 300 includes a mounting tube 320 and a support member 330. One end of the mounting tube 320 is arranged inside the support member 330, and the mounting tube 320 and the support member 330 are assembled in the installation space 110 of the housing 100. Along the entire extension direction of the mounting bracket 300, the mounting tube 320 and the support member 330 together form the receiving channel 310. Based on the existing aerosol generating substrate A being cylindrical, the mounting tube 320 is a hollow cylindrical structure, and since it is in contact with the aerosol generating substrate A, the mounting tube 320 is made of heat-insulating material, which can prevent heat from being transferred to the housing 100, causing the housing 100 to become hot and affecting the use of the generating device.

[0032] Please refer to Figures 1 to 4, the heating component 200 includes a heating element 210 and a mounting base 220, and the mounting base 220 is used to fix the heating element 210; the mounting base 220 has a first end 221 and a second end 222, and the first end 221 and the second end 222 are oppositely arranged along the extending direction of the mounting base 220. A first mounting cavity 223 and a second mounting cavity 224 are provided in the mounting base 220, and the first mounting cavity 223 and the second mounting cavity 224 are arranged in sequence along the direction from the first end 221 to the second end 222, and the first mounting cavity 223 and the second mounting cavity 224 are communicated; at least part of the structure of the heating element 210 is inserted into the first mounting cavity 223 from the first end 221 and extends into the second mounting cavity 224. The inner diameter of the first mounting cavity 223 matches the outer diameter of the heating element 210, and the inner diameter of the second mounting cavity 224 is larger than the outer diameter of the heating element 210.

[0033] The mounting base 220 is used to fixedly mount the heating element 210. A first mounting cavity 223 and a second mounting cavity 224 are provided in the mounting base 220. The first mounting cavity 223 and the second mounting cavity 224 together form the mounting space 110 of the heating element 210, so that the heating element 210 is stably mounted in the generating device, and it is in good and uniform contact with the aerosol generating matrix A, thereby improving the use taste. Since the inner diameter of the first mounting cavity 223 matches the outer diameter of the heating element 210, the heating element 210 is fixed through the first mounting cavity 223. Since the inner diameter of the second mounting cavity 224 is larger than the outer diameter of the heating element 210, there is a gap between the heating element 210 and the cavity wall of the second mounting cavity 224, thereby reducing the contact area between the heating element 210 and the mounting base 220, reducing the heat transferred from the heating element 210 to the mounting base 220. Since the heat is conducted through the air in the gap and the air heat conduction efficiency is low, it can also slow down the heat transfer speed from the heating element 210 to the mounting base 220, thereby reducing the energy loss of the entire generating device.

[0034] According to the heat conduction formula Q is the heat (W), ΔT is the temperature difference (K), λ is the thermal conductivity (W / m*k), S is the area (m 2), where L is the thickness (m). It can be seen that the smaller the conduction area, the less heat is conducted. This application utilizes this principle to specifically design the mounting base 220, enabling it to not only have the function of fixing the heating element 210 but also reduce the contact area between the two, thereby reducing heat transfer and lowering heat loss. When experimentally comparing the existing mounting base with a solid structure and the mounting base 220 in this application, with the temperature of the heating element 210 set at 250 °C and sampling the points of the mounting base 220, the temperature of the existing mounting base reaches 173 °C after reaching a steady state, while the temperature of the mounting base 220 in this application reaches 149 °C after reaching a steady state, a decrease of 24 °C compared to before. From this data, it can also be seen that less heat is transferred to the mounting base 220 in this application, which can reduce energy loss.

[0035] It should be further noted that the extending directions of the first end 221 and the second end 222 are the same as the extending direction from the proximal end 311 to the distal end 312. The heating element 210, the mounting base 220, and the mounting bracket 300 are coaxially arranged, enabling the aerosol generation substrate A to be heated evenly, avoiding burnt odors or insufficient baking caused by uneven heating, and thus improving its taste during use. The mounting base 220 is made of heat-resistant PEEK material, which can also prevent its function from failing due to high temperature and effectively extend the service life of the entire generating device.

[0036] Please refer to Figure 3 and Figure 4 , the mounting base 220 includes a mounting substrate 225 and an extension portion 226. The first mounting cavity 223 penetrates through the mounting substrate 225; the extension portion 226 is provided on the circumferential edge of the mounting substrate 225 and extends along the direction from the first end 221 to the second end 222, forming a second mounting cavity 224.

[0037] In one embodiment, the mounting base 220 further includes an enclosing portion 227. The enclosing portion 227 is provided on the side of the extension portion 226 away from the first end 221, and a second mounting cavity 224 is formed between the enclosing portion 227 and the extension portion 226.

[0038] Please refer to Figure 5, the heating element 210 includes a heat conduction cover 211, a heating wire 212, and an electrode 213. A receiving cavity 2111 is provided inside the heat conduction cover 211. The heating wire 212 is disposed in the receiving cavity 2111, and the heating wire 212 is spirally arranged inside the heat conduction cover 211. The heating wire 212 is electrically connected to the power supply assembly through the electrode 213. When adjusting the operation of the heating assembly 200, the situation where its power suddenly increases may occur, causing the temperature generated by the heating wire 212 to rise relatively quickly. When the heating wire 212 is in direct contact with the aerosol generating substrate A, the heat can be quickly transferred to the aerosol generating substrate A, thereby making the aerosol generating substrate A prone to being scorched. Placing the heating wire 212 in the receiving cavity 2111 of the heat conduction cover 211 and not directly contacting the aerosol generating substrate A can effectively slow down the speed of heat transfer to the aerosol generating substrate A and avoid scorching the aerosol generating substrate A due to high temperature.

[0039] In one embodiment, a filler is filled in the receiving cavity 2111 as a heat conduction medium, which can enable the heat conduction cover 211 to evenly dissipate heat outward. Moreover, the heat conduction cover 211 and the filler isolate air and moisture, which can ensure the stability of the heating wire 212 and make it not easily oxidized and corroded. The heat conduction cover 211 and the filler can also protect the heating wire 212, improving the stability and service life of the heating wire 212.

[0040] Furthermore, to facilitate insertion into the aerosol generating substrate A, the heat conduction cover 211 is further provided with a piercing portion 2112. The piercing portion 2112 is a conical structure and is a closed structure. One end opposite to the piercing portion 2112 along its extending direction is an open structure, such that the heating wire 212 can be disposed in the receiving cavity 2111, and the piercing portion 2112 can pierce and insert into the aerosol generating substrate A.

[0041] Please refer to Figure 3 and Figure 4 , an installation hole 2271 is provided on the mounting seat 220, enabling the electrode 213 to pass through the installation hole 2271 to be electrically connected to the heating wire 212.

[0042] Specifically, the installation hole 2271 penetrates through the enclosing portion 227 along the direction from the first end 221 to the second end 222, such that one end of the electrode 213 passes through the installation hole 2271 to be electrically connected to the heating wire 212, and the other end is electrically connected to the PCB control circuit board 410 in the main control assembly 400. Generally, the electrode 213 includes two electrodes, namely a positive electrode and a negative electrode. Correspondingly, two installation holes 2271 are provided, which are correspondingly matched with the electrodes 213 one by one.

[0043] To further prevent the heating wire 212 from melting the heat conduction cover 211 when generating heat, when moving the heating wire 212 into the heat conduction cover 211, keep the heating wire 212 in a non-contact state with the heat conduction cover 211.

[0044] In one embodiment, the heat conduction cover 211 is made of a ceramic material, and the material is selected from one of alumina or zirconia. These two materials can be used in the high-temperature environment during the operation of the generating device. Among them, alumina has good conductivity, mechanical strength and high-temperature resistance, and zirconia has properties such as high melting point and boiling point, high hardness, being an insulator at room temperature, and having conductivity at high temperatures.

[0045] In one embodiment, the heating element 210 is injection-molded and connected to the first installation cavity 223. The mounting base 220 is injection-molded through an injection molding process, and the heating element 210 and the mounting base 220 are injection-molded into an integral structure. The heating element 210 and the mounting base 220 prepared in this way have low costs and high production efficiency.

[0046] In another embodiment, the heating element 210 and the mounting base 220 are two separate structures. The heating element 210 is connected to the first installation cavity 223 by interference fit, so that the heating element 210 and the mounting base 220 form an integral structure.

[0047] Please refer to Figure 1 and Figure 6 , the heating assembly 200 further includes a fixing frame 230. The fixing frame 230 is sleeved on the mounting base 220 and is sleeved on the mounting base 220 from the second end 222 of the mounting base 220. The fixing frame 230 and the mounting frame 300 are arranged in sequence along the direction from the first end 221 to the second end 222, and the two cooperate to form a receiving channel 310. The aerosol generation matrix A is inserted from the proximal end 311, the heating assembly 200 is inserted from the distal end 312, and the heating element 210 in the heating assembly 200 is inserted into the middle of the aerosol generation matrix A.

[0048] Please refer to Figures 2 to 4 , an installation groove 2251 is provided on the outer periphery of the mounting base 220. The installation groove 2251 is provided on the mounting matrix 250, and a sealing ring 240 is provided in the installation groove 2251; the sealing ring 240 is arranged between the mounting base 220 and the fixing frame 230 to seal the mounting base 220 and the fixing frame 230.

[0049] The above uses specific examples to elaborate on the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the technical field to which the present application belongs, based on the idea of the present application, several simple deductions, deformations or substitutions can also be made.

Claims

1. A heating component, characterized in that: include: Heating body; as well as A mounting seat, the mounting seat is used to fix the heating element; The mounting seat has a first end and a second end, and the first end and the second end are arranged opposite to each other along the extension direction of the mounting seat; a first mounting cavity and a second mounting cavity are arranged in the mounting seat, and the first mounting cavity and the second mounting cavity are arranged in sequence along the direction from the first end to the second end, and the first mounting cavity and the second mounting cavity are connected; At least part of the structure of the heating element is inserted into the first installation cavity from the first end and extends into the second installation cavity; the inner diameter of the first installation cavity matches the outer diameter of the heating element, and the inner diameter of the second installation cavity is larger than the outer diameter of the heating element.

2. The heating assembly according to claim 1, characterized in that The mounting seat includes a mounting base and an extension portion, the first mounting cavity is set through the mounting base; the extension portion is set at the peripheral edge of the mounting base, the extension portion extends along the direction from the first end to the second end, and forms the second mounting cavity.

3. The heating assembly according to claim 2, characterized in that The mounting seat further includes an enclosing portion, which is disposed on a side of the extending portion away from the first end, and the second mounting cavity is formed between the enclosing portion and the extending portion.

4. The heating assembly according to claim 1, characterized in that The heating element comprises a heat-conducting cover, a heating wire and an electrode. A containing cavity is arranged in the heat-conducting cover, and the heating wire is arranged in the containing cavity. The heating wire is electrically connected to the power supply component through the electrode.

5. The heating assembly according to claim 4, characterized in that The mounting seat is provided with a mounting hole, and the electrode passes through the mounting hole and is electrically connected to the heating wire.

6. The heating assembly according to claim 4, characterized in that The heat conductive cover is made of one of aluminum oxide and zirconium oxide.

7. The heating assembly according to claim 1, characterized in that The heating element and the first installation cavity are injection-molded and connected to form an integrated structure.

8. The heating assembly according to claim 1, characterized in that The heating component also includes a fixing frame, and the fixing frame is sleeved on the mounting seat.

9. The heating assembly according to claim 8, characterized in that The outer periphery of the mounting seat is provided with a mounting groove, and a sealing ring is provided in the mounting groove; the sealing ring is arranged between the mounting seat and the fixing frame to seal the mounting seat and the fixing frame.

10. An aerosol generating device, characterized in that: include: An outer shell, wherein an installation space is provided in the outer shell; The heating component according to any one of claims 1 to 9; A mounting frame, wherein the mounting frame and the heating assembly are both arranged in the mounting space; a receiving channel is arranged in the mounting frame, and the receiving channel includes a proximal end and a distal end, and the proximal end and the distal end extend in a direction from the first end to the second end; the proximal end is used for inserting an aerosol generating substrate, and the distal end is used for inserting at least a part of the structure of the heating assembly, and at least a part of the structure of the heating element is inserted into the aerosol generating substrate; as well as A main control component is electrically connected to the heating component to provide the power required for the heating component to work and control the operation of the heating component.

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