CN220441923U - Heating assembly and aerosol generating device - Google Patents

Abstract

The application provides a heating element and aerosol generating device, the heating element includes heat-generating body and insulator. The heating body is used for accommodating the aerosol generating substrate and is provided with a heat insulation area and at least two independent heating areas; the heat insulation areas are arranged between two adjacent heating areas; the heat insulator is embedded in the heat-insulating region of the heating body to block heat transfer between adjacent heating regions. The heat-generating body of this application adopts insulator embedding heat-insulating region to separate different district that generates heat, adopts the mode that the physics blocked to prevent the heat transfer between each district that generates heat to the heat transfer of this district that generates heat to other district that generates heat has been reduced when a certain district that generates heat to the heat-generating body heats, thereby has realized locally and has toasted aerosol and produce the matrix, can control the local heating when several mouthfuls inhale the aerosol before the user, and the temperature of aerosol can not be too high.

Description

Heating assembly and aerosol generating device

Technical Field

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

Background

The aerosol generating device which is not burnt by heating is becoming more and more interesting and favored because of the advantages of safe, convenient and environment-friendly use. The heated, non-combustible aerosol generating device heats and toasts different forms of aerosol generating substrates to generate aerosol and delivers the aerosol to a user for ingestion. The heating and non-burning mode ensures that the aerosol generating substrate is heated only at a lower temperature, does not burn and generate open fire, and effectively avoids the generation of harmful substances caused by the aerosol generating substrate.

Existing heated non-combustion aerosol-generating devices generally include a heating assembly to heat and atomize an aerosol-generating substrate when energized by the heating assembly. The heating element generally heats the aerosol-generating substrate as a whole, and the aerosol generated by the aerosol-generating substrate during the whole heating is easy to be too high in temperature, so that a user feels hot when sucking the aerosol from the front openings of the user, and the user experience is poor.

Disclosure of Invention

The application provides a heating element and aerosol generating device, this heating element can solve several mouthfuls before the user and feel scalding the mouth when inhaling aerosol, and user experience feels less problem.

In order to solve the technical problem, the application provides a heating assembly, which comprises a heating body and an insulator. The heating body is used for accommodating the aerosol generating substrate and is provided with a heat insulation area and at least two independent heating areas; the heat insulation areas are arranged between two adjacent heating areas; the heat insulator is embedded in the heat-insulating region of the heating body to block heat transfer between adjacent heating regions.

In one embodiment, the insulating region has a hollowed-out structure, and the insulator fills the hollowed-out structure.

In one embodiment, the insulating region has a recess in which the insulator is disposed.

In one embodiment, the hollowed-out structure is a heat insulation hole, and the heat insulation hole is a wire hole structure.

In one embodiment, the hollowed-out structure is a intermittently hollowed-out structure.

In one embodiment, the thermal conductivity of the insulator is less than 8W/(m "K), and/or the material of the insulator comprises at least one of glass-ceramic, zirconia ceramic, polyetheretherketone, polyimide.

In one embodiment, the heating element is of a tubular structure, the heat insulation holes are arranged along the axial direction, and the heating element is provided with a first heating area and a second heating area; the quantity of heat insulating hole is more than two, and the heat insulating hole includes first heat insulating hole and second heat insulating hole, and first heat generating area has relative first end and second end along circumference direction, and second heat generating area has relative first end and second end along circumference direction, and first end of first heat generating area is close to the second end of second heat generating area, and first heat insulating hole sets up between the first end of first heat generating area and the second end of second heat generating area, and the second heat insulating hole sets up between the second end of first heat generating area and the first end of second heat generating area.

In one embodiment, a heat-generating body includes a substrate and at least two heat-generating layers. The base body is provided with a containing cavity for containing the aerosol generating substrate; the heating layers are arranged on the substrate and are in one-to-one correspondence with the heating areas, and the heating layers are used for generating heat when being electrified so as to heat the aerosol generating substrate.

In one embodiment, the heating assembly further comprises a housing assembly and a heat insulating layer, wherein the housing assembly is provided with a mounting cavity, the heating body is arranged in the mounting cavity, and the heat insulating layer is arranged on the inner wall of the mounting cavity.

In order to solve the technical problem, the application also provides an aerosol generating device, which comprises a heating component and a power supply component, wherein the heating component is used for heating an aerosol generating substrate after being electrified; the heating assembly is any one of the heating assemblies referred to above; the power supply assembly is electrically connected with the heating assembly and is used for supplying power to the heating assembly.

The application provides a heating element and aerosol generating device, and the application provides a heating element, and the heating element includes heat-generating body and insulator. The heating body is used for accommodating the aerosol generating substrate and is provided with a heat insulation area and at least two independent heating areas; the heat insulation areas are arranged between two adjacent heating areas; the heat insulator is embedded in the heat-insulating region of the heating body to block heat transfer between adjacent heating regions. The heat-generating body of this application adopts insulator embedding heat-insulating region to separate different district that generates heat, adopts the mode that the physics blocked to prevent the heat transfer between each district that generates heat to the heat transfer of this district that generates heat to other district that generates heat has been reduced when a certain district that generates heat heats to the heat-generating body, thereby realized locally toasted aerosol and produced the matrix, can control the part and generate heat when several mouthfuls of aerosol are inhaled before the user, the temperature of aerosol can not be too high, and the temperature that senses when several mouthfuls of aerosol are inhaled before the user is lower, is difficult to the boiling hot mouth, has improved user's experience.

Drawings

FIG. 1 is a schematic view of a heating assembly according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of another view of FIG. 1;

FIG. 3 is an expanded schematic view of FIG. 1;

FIG. 4 is an expanded schematic view of a heating assembly provided in accordance with another embodiment of the present application;

fig. 5 is a schematic structural diagram of an aerosol generating device according to an embodiment of the present disclosure.

Reference numerals: 10. a heating assembly; 11. a heating element; 111. a base; 1111. a housing chamber; 112. a heat generating layer; 113. an electrode; 114. a thermally insulated zone; 115. a heat generation area; 1151. a first heat generation zone; 1152. a second heat generation zone; 12. an insulator; 1141. a hollow structure; 1141a, insulating holes; 1142. a first heat insulating hole; 1143. a second heat insulating hole; 13. a housing assembly; 131. an upper housing; 1311. a mounting cavity; 1312. an insertion channel; 132. a lower housing; 1321. an air intake passage; 14. a thermal insulation layer; 15. a drainage device; 16. a heat exchange core; 20. an aerosol-generating substrate; 30. an aerosol generating device; 40. a power supply assembly; 50. and a controller.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, some operations associated with the present application have not been shown or described in the specification to avoid obscuring the core portions of the present application, and may not be necessary for a person skilled in the art to describe in detail the relevant operations based on the description herein and the general knowledge of one skilled in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the operational steps involved in the embodiments may be sequentially exchanged or adjusted in a manner apparent to those skilled in the art. Accordingly, the description and drawings are merely for clarity of describing certain embodiments and are not necessarily intended to imply a required composition and/or order.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated.

Referring to fig. 1-3, a heating assembly 10 is provided, and the heating assembly 10 may be particularly useful for housing an aerosol-generating substrate 20 and heating the aerosol-generating substrate 20 when energized. The aerosol-generating substrate 20 may specifically comprise a plant grass substrate, such as a tobacco substrate, and the aerosol-generating substrate 20 may further comprise a protective sleeve that may encapsulate the plant grass substrate, such as the plant grass substrate may be wrapped inside an aluminum foil or paper for use therewith.

Specifically, in one embodiment, the heating assembly 10 includes a heating element 11 and an insulator 12.

Wherein the heating element 11 is for housing the aerosol-generating substrate 20, and the heating element 11 comprises a heating material. The heating element 11 can support the aerosol-generating substrate 20 accommodated therein, and can generate heat when energized, and can heat the aerosol-generating substrate 20 accommodated therein, thereby forming an aerosol for a user.

The heating element 11 may be entirely made of a conductive material, such as conductive ceramics, or may include an insulating substrate and a conductive heating layer provided on the surface of the insulating substrate. In the embodiment of FIGS. 1-3, heat-generating body 11 includes a base 111 and a heat-generating layer 112. The heat generating layer 112 is used to generate heat when energized to heat the aerosol generating substrate 20, two electrodes 113 may be connected to both ends of the heat generating layer 112, and the electrodes 113 may be electrically connected to the power supply assembly 40 and the controller 50 through external leads. The electrode 113 may be a conductive coating applied to the substrate 111, and the conductive coating may be a metal coating, conductive silver paste, conductive tape, or the like, or may be a metal conductive sheet provided on the substrate 111, or a metal deposited on the substrate 111, such as a gold film, an aluminum film, or a copper film, or the like.

The heat generating layer 112 may be a metal layer, a conductive ceramic layer, or a conductive carbon layer. The shape of the heat-generating layer 112 may be a continuous film-like structure, a porous mesh structure or a strip-like structure. The substrate 111 is made of insulating material, and the substrate 111 can be high-temperature resistant insulating material such as quartz glass, ceramic or mica. The base 111 has a housing cavity 1111, and the housing cavity 1111 is configured to house the aerosol-generating substrate 20. The receiving chamber 1111 has an opening to allow the aerosol-generating substrate 20 to be inserted into or withdrawn from the receiving chamber 1111 from the opening.

The heating element 11 may have a tubular structure, in this embodiment, the base 111 has a cylindrical tubular structure, the housing chamber 1111 has a cylindrical shape, and the wall thickness of the side wall of the base 111 has a fixed value, so that the heating element 11 can uniformly heat the aerosol-generating substrate 20.

In this application, heat-generating body 11 has a heat-insulating region 114 and at least two independent heat-generating regions 115. Wherein, independent heat generation areas 115 means that each heat generation area 115 can generate heat individually. The heat insulation region 114 is disposed between two adjacent heat generation regions 115, and the heat insulator 12 is embedded in the heat insulation region 114 to block heat transfer between the adjacent heat generation regions 115.

Specifically, in the embodiment of fig. 1-3, the number of heat generating areas 115 is the same as the number of heat generating layers 112, and the heat generating areas 115 are in one-to-one correspondence with the heat generating layers 112, i.e., one heat generating layer 112 corresponds to one heat generating area 115. At least a portion of the insulation 12 is disposed between adjacent two of the heat-generating layers 112 to block heat transfer between the adjacent two of the heat-generating layers 112; the heat insulator 12 shown in fig. 1 to 3 may be disposed between two adjacent heat generating layers 112, or one of the heat insulators 12 may be disposed between two adjacent heat generating layers 112.

The material of the insulator 12 needs to meet both high temperature resistance and low thermal conductivity. For example, in one embodiment, the thermal conductivity of the insulator 12 is less than 8W/(m "K), and/or the material of the insulator 12 comprises at least one of glass-ceramic, zirconia ceramic, polyetheretherketone, polyimide.

The heat-generating body 11 of this application adopts insulator 12 embedding heat-insulating region 114 to separate different district 115 that generates heat, adopts the mode that physically blocks to prevent the heat transfer between each district 115 that generates heat to heat-generating body 11 when a certain district 115 that generates heat heats, reduced the heat transfer of this district 115 that generates heat to other district 115 that generates heat, thereby realized locally toasted aerosol and produced matrix 20, can control the local heating when several mouthfuls of aerosol are inhaled before the user, the temperature of aerosol can not be too high, and the temperature that senses when several mouthfuls of aerosol are inhaled before the user is lower, is difficult for scalding the mouth, has improved user's experience and has felt.

In addition, two heating elements are disposed in some existing heating assemblies 10, that is, the existing independent heating areas 115 are respectively disposed on the two heating elements, and the two heating elements are respectively connected with two ends of the heat insulation element to realize heat insulation, so that the existing heating assembly has more parts and complicated assembly steps, and the reliability of the connection strength of the two heating elements is poor. And each independent heating area 115 and the heat-insulating area 114 of this application all set up on same heating element, and heat-insulating area 114 realizes thermal-insulated through embedding insulator 12, compares in above-mentioned current structure, and the part is less, has saved the assembly step that heating element and heat-insulating element are connected, and insulator 12 embedding can not excessively influence the structural strength of heating element 11 in heating element 11, and the reliability of the structural strength of heating element 11 is strong.

In one embodiment, as shown in fig. 1-3, the heat insulation region 114 has a hollow structure 1141, and the heat insulator 12 may be filled in the hollow structure 1141. The hollow structure 1141 is a through groove or a through hole penetrating the side wall of the heating element 11 in the thickness direction of the heating element 11 in the heat insulation region 114. The insulator 12 may be filled in the hollowed-out structure 1141 by painting, spraying, dispensing, etc. On the one hand, the hollowed-out structure 1141 prevents the mutual diffusion of energy among different heating areas 115 in a physical blocking manner, so that the independence of each heating area 115 is improved; on the other hand, the heat insulator 12 is filled in the hollow structure 1141, so that the heating element 11 can maintain a certain tightness, aerosol generated by heating the heating element 11 is not easy to overflow from the hollow structure 1141, and the energy utilization rate is improved.

As shown in fig. 1-3, the hollow structure 1141 may be, for example, a heat insulation hole 1141a, where the heat insulation hole 1141a is a wire hole structure, and of course, in other embodiments, the heat insulation hole 1141a may also be a bent structure, a zigzag structure, or other regular or irregular shapes.

In one embodiment, the hollowed-out structure 1141 may be a discontinuous hollowed-out structure 1141. For example, referring to fig. 4, in the embodiment of fig. 4, the hollow structure 1141 includes a plurality of heat insulation holes 1141a disposed at intervals. The provision of the open structure 1141 at intermittent intervals can increase the structural strength of the insulating region 114 compared to a continuous open structure 1141.

In one embodiment, as shown in FIGS. 1-4, each heat generating region 115 is arranged side by side along the circumferential direction of the heat generating body 11, and the heat insulating holes 1141a may extend in the axial direction to block adjacent heat generating regions 115. In other embodiments, the heat generating regions 115 may be arranged in parallel along the axial direction of the heat generating body 11, and the heat insulating holes 1141a may extend along the circumferential direction to block the adjacent heat generating regions 115. Of course, in an embodiment, the heat generating areas 115 may be arranged circumferentially or axially, and a portion of the heat insulating holes 1141a may be arranged circumferentially, so that each heat generating area 115 may be only required to be physically blocked.

In the embodiment of FIGS. 1-3, heat-generating body 11 has a first heat-generating region 1151 and a second heat-generating region 1152. The number of the heat insulation areas 114 is two, the number of the heat insulation holes 1141a is two, the number of the heat insulation holes 1142 and the number of the heat insulation holes 1143 are respectively, the first heat insulation holes 1142 and the second heat insulation holes 1143 extend along the axial direction, the first heat generation area 1151 has a first end and a second end which are opposite along the circumferential direction, the second heat generation area 1152 has a first end and a second end which are opposite along the circumferential direction, the first end of the first heat generation area 1151 is close to the second end of the second heat generation area 1152, the first heat insulation holes 1142 are arranged between the first end of the first heat generation area 1151 and the second end of the second heat generation area 1152, and the second heat insulation holes 1143 are arranged between the second end of the first heat generation area 1151 and the first end of the second heat generation area 1152.

In one embodiment, the heat insulation area 114 may not have the hollowed-out structure 1141, and the heat insulation area 114 has a groove, which is a blind groove, and the heat insulator 12 is disposed in the groove. The heat-insulating region 114 of the groove structure can avoid the overflow of aerosol to a greater extent than the heat-insulating region 114 of the hollow structure 1141, so that the heat-generating body 11 maintains a better sealing property. Of course, in other embodiments, the heat insulation region 114 may also include both the hollow structure 1141 and the groove.

Referring to fig. 5, in one embodiment, the heating assembly 10 further includes a housing assembly 13, a thermal insulation layer 14, a flow diverter 15, and a heat exchange core 16.

The housing assembly 13 includes an upper housing 131 and a lower housing 132, wherein the upper housing 131 has a mounting cavity 1311 and an insertion channel 1312, the insertion channel 1312 is disposed at one end of the mounting cavity 1311 and is in communication with the mounting cavity 1311, and the lower housing 132 is disposed at one end of the mounting cavity 1311 away from the insertion channel 1312 and is used for blocking one end of the mounting cavity 1311 away from the insertion channel 1312. The heat generating body 11 is disposed in the mounting cavity 1311, and one end of the heat generating body 11 close to the lower housing 132 is detachably connected to the lower housing 132, and one end of the heat generating body 11 close to the insertion passage 1312 is detachably connected to a side wall of the insertion passage 1312.

The aerosol-generating substrate 20 is inserted into the receiving chamber 1111 of the heating element 11 through the insertion passage 1312. The lower housing 132 has an air inlet 1321 therein, the air inlet 1321 communicates with the air inlet of the heating unit 10, and when the heating unit 10 is operated, air flows into the air inlet 1321 of the lower housing 132 from the air inlet of the heating unit 10, and flows into the heating element 11 from the air inlet 1321, the heating element 11 heats the aerosol-generating substrate 20 to generate aerosol, and the aerosol flows out from the air outlet of the heating unit 10 for a user to use.

The heat insulating layer 14 may be disposed on an inner wall of the installation cavity 1311, and the heat insulating layer 14 may block heat generated by the heating element 11 from being transferred to the outside of the installation cavity 1311, thereby improving an energy utilization rate of the heating element 11. The insulating layer 14 may be made of a heat insulating material resistant to high temperature, for example, zirconia, alumina, quartz, glass, or the like.

The heat exchange core 16 may be installed in the heat generating body 11 and disposed at an end of the heat generating body 11 near the lower case 132. In general, the air flow directly flows from the air inlet 1321 of the lower housing 132 to the heating element 11, and the through-type air inlet heating mode has a short heat exchange distance, so that the heat exchange area of the air flow is small, the temperature of the heated air flow is easily gradually reduced in the rising process, the temperature reaching the aerosol generating substrate is insufficient, and the suction taste is affected. And the heat exchange area of the air flow can be increased by providing the heat exchange core 16 between the heat generating body 11 and the air intake passage 1321.

The flow diverter 15 may be disposed in the heat generator 11 and between the aerosol-generating substrate 20 and the heat exchange core 16. The flow diverter 15 may concentrate the flow of air in the heat exchange core 16 to the middle of the aerosol generating substrate 20. In the using process of the through type air inlet heating mode, after the temperature of the air flow is increased, nicotine is easy to be directly and completely carried out, so that the content of several nicotine openings before suction is overhigh, the content of the subsequent nicotine is lower, and the balance is poor. The application adds the drainage ware 15, leads into the central region position of aerosol production matrix 20 through drainage ware 15 with hot gas flow for the hot gas flow takes the aerosol to produce the nicotine of matrix 20 central region, thereby realizes the process that the nicotine releases gradually, improves the equilibrium of suction, still makes the aerosol produce the live time extension of matrix 20, promotes user's experience.

As shown in fig. 5, the present application further provides an aerosol generating device 30, where the aerosol generating device 30 includes a heating component 10, a power supply component 40, and a controller 50, and the controller 50 is connected to the heating component 10 and the power supply component 40, respectively, so as to control the power supply component 40 to supply power to the heating component 10 and control the heating power, the heating duration, etc. of the heating component 10 after receiving the start signal. The power supply assembly 40 is electrically connected to the heating assembly 10 for supplying power to the heating assembly 10. In one embodiment, the power supply assembly 40 may specifically comprise a rechargeable lithium ion battery. The heating assembly 10 of the aerosol generating device 30 may have the same or similar structure as the heating assembly 10 according to any of the above embodiments, and achieve the same or similar effects, and will not be described herein.

The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.

Claims (10)

1. A heating assembly, comprising:

a heater for housing an aerosol-generating substrate, the heater having a heat-insulating region and at least two independent heat-generating regions; the heat insulation areas are arranged between two adjacent heating areas;

and a heat insulator embedded in the heat-insulating region of the heat-generating body to block heat transfer between the adjacent heat-generating regions.

2. The heating assembly of claim 1, wherein the insulating region has a hollowed-out structure, the insulator filling the hollowed-out structure.

3. The heating assembly of claim 1, wherein the thermally insulating region has a recess, the thermal insulator being disposed in the recess.

4. The heating assembly of claim 2, wherein the hollowed-out structure is a heat-insulating hole, and the heat-insulating hole is a wire hole structure.

5. The heating assembly of claim 4, wherein the heat generating body is of tubular construction, the heat insulating aperture is axially disposed, and the heat generating body has a first heat generating region and a second heat generating region; the quantity of thermal-insulated hole is more than two, the thermal-insulated hole includes first thermal-insulated hole and second thermal-insulated hole, first heat generation area has relative first end and second end along circumference direction, the second heat generation area has relative first end and second end along circumference direction, the first end of first heat generation area is close to the second end of second heat generation area, first thermal-insulated hole set up in between the first end of first heat generation area and the second end of second heat generation area, the second thermal-insulated hole set up in between the second end of first heat generation area and the first end of second heat generation area.

6. The heating assembly of claim 2, wherein the hollowed-out structure is a intermittently hollowed-out structure.

7. The heating assembly of claim 1, wherein the thermal conductivity of the insulator is less than 8W/(m-K), and the insulator is of a material selected from the group consisting of glass ceramic, zirconia ceramic, polyetheretherketone, and polyimide.

8. The heating assembly of claim 1, wherein the heat generator comprises:

a base body having a receiving cavity for receiving the aerosol-generating substrate;

and at least two heating layers, wherein the heating layers are arranged on the substrate, the heating layers are in one-to-one correspondence with the heating areas, and the heating layers are used for generating heat when being electrified so as to heat the aerosol generating substrate.

9. The heating assembly of claim 1, further comprising a housing assembly having a mounting cavity therein and a heat-generating body disposed in the mounting cavity, the heat-insulating layer disposed on an inner wall of the mounting cavity.

10. An aerosol-generating device, comprising:

a heating assembly for heating the aerosol-generating substrate upon energization; the heating assembly is a heating assembly according to any one of claims 1-9;

and the power supply assembly is electrically connected with the heating assembly and is used for supplying power to the heating assembly.