CN220044948U - Heating element and aerosol generating device - Google Patents

Abstract

The application discloses a heating assembly and an aerosol generating device. The heating component comprises a blocking piece, a loading piece, a coil and a heating piece. The blocking piece comprises a main body part and a blocking part, and the blocking part is connected with the main body part and jointly encloses a containing cavity; the loading piece is provided with a containing cavity, and at least part of the loading piece extends into the containing cavity; the coil is accommodated in the accommodating cavity and surrounds between the loading piece and the main body part, the coil is used for generating a magnetic field when being electrified, and the blocking part is used for blocking at least part of the magnetic field at least one end part of the coil; the heating element is at least partially positioned in the accommodating cavity, and is used for generating heat under the condition that the coil is electrified to generate a magnetic field. According to the application, the coil is accommodated in the accommodating cavity, and the blocking part can block the magnetic field at least one end part of the coil, so that the magnetic field generated by electrifying the coil can be prevented from leaking to the outside, the magnetic field can act on the heating element more, the magnetic field utilization rate is improved, and the energy efficiency of the aerosol generating device is further improved.

Description

Heating element and aerosol generating device

Technical Field

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

Background

An aerosol-generating device is a small device capable of acting on an aerosol-generating substrate and generating an aerosol using Heat Not Burn (HNB) technology. Generally, the aerosol-generating device may heat the aerosol-generating substrate by electromagnetic heating, i.e. a coil may be used to generate a magnetic field when energized, and a heat-generating element cooperating with the coil may generate heat by electromagnetic induction and heat the aerosol-generating substrate. In order to prevent the magnetic field from radiating to the outside, a cylindrical magnetic shield layer is usually provided outside the coil. However, the magnetic field may still leak from both ends of the magnetic shielding layer, which has a health hazard, and may result in a low utilization rate of the magnetic field, and thus in a low energy conversion efficiency of the aerosol generating device.

Disclosure of Invention

Embodiments of the present utility model provide a heating assembly and an aerosol-generating device.

The heating component of the embodiment of the utility model comprises a blocking piece, a loading piece, a coil and a heating piece. The blocking piece comprises a main body part and a blocking part, and the blocking part is connected with the main body part and jointly encloses a containing cavity; the loading piece is provided with a containing cavity, and at least part of the loading piece extends into the containing cavity; the coil is accommodated in the accommodating cavity and surrounds between the loading piece and the main body part, the coil is used for generating a magnetic field when being electrified, and the blocking part is used for blocking at least part of the magnetic field at least one end part of the coil; the heating element is at least partially positioned in the accommodating cavity, and is used for generating heat under the condition that the coil is electrified to generate a magnetic field.

In certain embodiments, the barrier has a thickness of 0.5mm to 5.0mm.

In certain embodiments, the thickness of the body portion is 0.5mm to 5.0mm.

In certain embodiments, the barrier is made of a soft magnetic material.

In certain embodiments, the receiving cavity is for loading an aerosol-generating substrate, the coil comprising opposed first and second ends, the blocking portion being opposed to the first end of the coil and/or the second end of the coil in a loading direction of the receiving cavity.

In some embodiments, the body portion includes opposite first and second ends in a loading direction of the receiving cavity, the blocking portion for at least partially shielding an opening of the first end of the body portion and/or an opening of the second end of the body portion; the blocking portion extends from an inner peripheral wall of the main body portion toward a center of the accommodation chamber.

In some embodiments, the body portion includes opposite first and second ends in a loading direction of the receiving cavity, the blocking portion for at least partially shielding an opening of the first end of the body portion and/or an opening of the second end of the body portion; the blocking part is covered on the end face of the main body part.

In certain embodiments, the barrier is provided with a through hole; the loading piece extends into the accommodating cavity through the penetrating hole under the condition that the blocking part is opposite to the first end part of the coil; and under the condition that the blocking part is opposite to the second end part of the coil, the heating element stretches into the accommodating cavity through the through hole.

In some embodiments, in the loading direction, the main body portion includes a plurality of sub-portions, the plurality of sub-portions meet to form the main body portion, the two outermost sub-portions include a first end and a second end, respectively, and the blocking portion is configured to at least partially block the opening of the first end of the sub-portion and/or the opening of the second end of the sub-portion; the blocking portion extends from an inner peripheral wall of the sub portion toward a center of the accommodating chamber.

In some embodiments, in the loading direction, the main body portion includes a plurality of sub-portions, the plurality of sub-portions meet to form the main body portion, the two outermost sub-portions include a first end and a second end, respectively, and the blocking portion is configured to at least partially block the opening of the first end of the sub-portion and/or the opening of the second end of the sub-portion; the blocking part is covered on the end face of the sub part.

In some embodiments, the sub-portions include two, the blocking portions include two, the two sub-portions correspond to the two blocking portions, respectively, each sub-portion meets the corresponding blocking portion and constitutes a component, and the two components meet to form the accommodating cavity.

In some embodiments, the length of both of the components is the same in the loading direction.

In some embodiments, in a direction perpendicular to the loading direction, the blocking member includes a first member and a second member that are connected, the first member includes a first sub-body portion, a first sub-blocking portion and a second sub-blocking portion located at opposite ends of the first sub-body portion, the second member includes a second sub-body portion, and a third sub-blocking portion and a fourth sub-blocking portion located at opposite ends of the second sub-body portion, the first sub-body portion and the second sub-body portion are connected to form the body portion, the first sub-blocking portion and the third sub-blocking portion are correspondingly connected, and the second sub-blocking portion and the fourth sub-blocking portion are correspondingly connected.

An aerosol-generating device according to an embodiment of the present application comprises the heating assembly according to any of the embodiments described above, and a housing in which the heating assembly is mounted.

In the heating assembly and the aerosol generating device provided by the embodiment of the application, the coil is accommodated in the accommodating cavity formed by the blocking part and the main body part, and besides the electromagnetic shielding effect of the main body part, the blocking part can also block at least part of the magnetic field at least one end part of the coil, so that leakage of the magnetic field generated by electrifying the coil can be reduced or even avoided, the magnetic field can act on the heating element more, the magnetic field utilization rate is improved, and the energy conversion efficiency of the aerosol generating device is further improved.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic cross-sectional view of an aerosol-generating device according to some embodiments of the application;

fig. 2 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to the first embodiment of the present application;

fig. 3 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to a second embodiment of the application;

Fig. 4 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to a third embodiment of the application;

fig. 5 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to a fourth embodiment of the application;

fig. 6 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to a fifth embodiment of the application;

fig. 7 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to a sixth embodiment of the application;

fig. 8 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to a seventh embodiment of the application;

fig. 9 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to an eighth embodiment of the application;

fig. 10 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to a ninth embodiment of the application;

fig. 11 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to the tenth embodiment of the application;

fig. 12 is an exploded isometric view of a barrier in the aerosol-generating device of fig. 11;

fig. 13 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device of an eleventh embodiment of the application;

fig. 14 is an exploded isometric view of a baffle in the aerosol-generating device of fig. 13.

Description of main reference numerals:

1000. an aerosol-generating device;

100. A heating assembly; 200. an aerosol-generating substrate; 300. a housing; 400. an electric control board; 500. a power supply;

10. a barrier; 11. a main body portion; 111. a first end; 1111. an opening; 113. a second end; 1131. an opening; 115. an inner peripheral wall; 117. a sub-section; 1171. a first end; 1173. a second end; 1175. a first sub-section; 1177. a second sub-section; 1179. a third sub-section; 118. a first component; 1181. a first sub-body portion; 1183. a first sub-barrier; 1185. a second sub-barrier; 119. a second component; 1191. a second sub-body portion; 1193. a third sub-barrier; 1195. a fourth sub-barrier; 13. a blocking portion; 131. a through hole; 15. a receiving chamber;

20. a loading member; 21. a housing chamber;

30. a coil; 31. a first end; 33. a second end;

40. a heating element.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

To address the problems of the prior art, embodiments of the present application provide a heating assembly 100 (shown in fig. 1) and an aerosol-generating device 1000 (shown in fig. 1).

Referring to fig. 1, a heating assembly 100 according to an embodiment of the application includes a blocking member 10, a loading member 20, a coil 30 and a heat generating member 40. The blocking member 10 includes a main body 11 and a blocking portion 13, and the blocking portion 13 is connected to the main body 11 and jointly encloses a receiving chamber 15. The loading element 20 is provided with a receiving cavity 21, and the loading element 20 at least partially extends into the receiving cavity 15. The coil 30 is accommodated in the accommodating chamber 15 and surrounds between the loading member 20 and the main body 11, the coil 30 is for generating a magnetic field when energized, and the blocking portion 13 is for blocking at least part of the magnetic field at least one end of the coil 30. The heating element 40 is at least partially located in the accommodating cavity 21 penetrating the blocking element 10 and the loading element 20, and the heating element 40 is used for generating heat when the coil 30 is electrified to generate a magnetic field.

Specifically, in some embodiments, the heat generating element 40 penetrates the barrier element 10 and the loading element 20 and protrudes into the accommodating cavity 21. Thus, when the coil 30 is energized, the coil 30 can generate a magnetic field, the magnetic field acts on the heat generating element 40, and an induced rotational current (i.e., eddy current) proportional to the magnetic field strength can be formed in the heat generating element 40 by the eddy current effect, whereby the heat generating element 40 can generate heat by the eddy current. When the coil 30 is powered off, the magnetic field is extinguished, and the heat generating member 40 generates no heat. In some embodiments, heat-generating component 40 may be made of one or more of iron-chromium-aluminum, stainless steel, nichrome, pure nickel, or pure titanium.

In some embodiments, barrier 10 may be made of a soft magnetic material, i.e., both body portion 11 and barrier portion 13 may be made of a soft magnetic material. Among these soft magnetic materials include, but are not limited to, nickel zinc ferrite, manganese zinc ferrite, or amorphous nanocrystalline soft magnetic, etc. Because the soft magnetic material has the function of converging and guiding magnetic force lines, the blocking member 10 made of the soft magnetic material can enable the magnetic field generated by the coil 30 to act on the heating member 40 more, thereby improving the utilization rate of the magnetic field and ensuring the energy conversion efficiency of the aerosol generating device 1000. It should be noted that, in some embodiments, the cross-sectional shape of the main body 11 may be circular, square, triangular, oval, or the like, which is not limited herein. In the embodiment of the present application, the cross section of the main body 11 is only circular. In a preferred embodiment, the body 11 is hollow cylindrical, and the blocking portion 13 is provided at least one end of the body 11 for at least partially shielding an end surface of the body 11.

In certain embodiments, the cross-sectional shape of the dock 20 may be circular, square, triangular, oval, etc., without limitation. In the embodiment of the present application, the cross section of the loading member 20 is merely exemplified by a circular shape. The carrier 20 may be made of Polyetheretherketone (PEEK), ferrite, or cardboard, etc., without limitation. When the coil 30 is energized, a magnetic field can pass through the loading member 20 and act on the heat generating member 40 to cause the heat generating member 40 to generate heat.

In the heating module 100 according to the embodiment of the present application, the coil 30 is accommodated in the accommodating cavity 15 surrounded by the blocking portion 13 and the main body 11, and besides the electromagnetic shielding effect of the main body 11, the blocking portion 13 can block at least part of the magnetic field at least one end portion of the coil 30, so that leakage of the magnetic field generated by energizing the coil 30 to the outside (the side of the blocking member 10 facing away from the coil 30) can be reduced or even avoided, so that the magnetic field can act on the heating member 40 more, the magnetic field utilization rate is improved, and the energy conversion efficiency of the aerosol generating device 1000 is further improved.

In addition, if the magnetic field leaks, on one hand, interference is generated on other electronic components in the aerosol-generating device 1000, and normal operation of the aerosol-generating device 1000 is affected; on the other hand, radiation is generated, which leads to health effects for the user. The provision of the barrier 10 thereby enables to reduce or even avoid magnetic field leakage, so that on the one hand the proper operation of the aerosol-generating device 1000 can be ensured; on the other hand, the safety performance of the heating assembly 100 and the aerosol-generating device 1000 can be improved.

The heating assembly 100 is further described below with reference to the accompanying drawings.

Referring to fig. 1, if the thickness of the blocking member 10 is smaller than 0.5mm, that is, the thickness D of the main body 11 and the thickness D of the blocking portion 13 are smaller than 0.5mm, the shielding effect of the main body 11 and the blocking portion 13 on the magnetic field is poor, and under the condition that the coil 30 is electrified to generate the magnetic field, the magnetic field may still leak through the blocking member 10, thereby affecting the utilization rate of the magnetic field. If the thickness of the barrier 10 is greater than 5.0mm, that is, the thickness D of the body 11 and the thickness D of the barrier 13 are both greater than 5.0mm, the dimensions of the body 11 and the barrier 13 are large, thereby affecting miniaturization of the heating assembly 100. In the embodiment of the present application, the thickness d of the blocking portion 13 is 0.5mm to 5.0mm. Specifically, the thickness d of the blocking portion 13 may be any one value or any value between any two values of 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, or 5.0mm. The thickness D of the body 11 is 0.5mm to 5.0mm. Specifically, the thickness D of the body portion 11 may be any one value or any value between any two values of 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, or 5.0mm. Therefore, the thickness D of the main body 11 and the thickness D of the blocking part 13 are both 0.5mm-5.0mm, so that on one hand, the shielding effect of the blocking piece 10 on the magnetic field can be improved, leakage of the magnetic field is prevented, the utilization rate of the magnetic field is improved, and the energy consumption of the aerosol generating device 1000 is further reduced; on the other hand, the size of the barrier 10 can be reduced, thereby achieving miniaturization of the heating assembly 100.

In some embodiments, the thickness D of the body portion 11 and the thickness D of the barrier portion 13 are the same, for example, the thickness D of the body portion 11 may be 1.0mm and the thickness D of the barrier portion 13 may also be 1.0mm. The same thickness of the body portion 11 and the blocking portion 13 can facilitate the processing of the blocking member 10, thereby improving the production efficiency of the blocking member 10. It will be appreciated that in other embodiments, the thickness D of the body portion 11 and the thickness D of the barrier portion 13 are different, for example, the thickness D of the body portion 11 may be 1.0mm and the thickness D of the barrier portion 13 may be 0.5mm.

With continued reference to fig. 1, in certain embodiments, the receiving cavity 21 is configured to receive the aerosol-generating substrate 200, and the coil 30 includes opposing first and second ends 31, 33 in a loading direction Z of the receiving cavity 21, with the blocking portion 13 opposing the first end 31 of the coil 30 and/or the second end 33 of the coil 30. In some embodiments, the loading direction Z may be a direction in which the aerosol-generating substrate 200 protrudes into the receiving cavity 21 from the outside (the side of the aerosol-generating device 1000 that is in contact with the outside atmosphere).

The aerosol-generating substrate 200 is an element capable of generating an aerosol when heated. The aerosol-generating substrate 200 may be in the form of an all solid or semi-solid state. It should be noted that, in some embodiments, the aerosol-generating substrate 200 may be a cylindrical structure similar to a cigarette, or may be a sheet-like structure, a strip-like structure, or a block-like structure. Aerosols may be visible or invisible and may include vapors (e.g., fine particulate matter in the gaseous state, which is typically liquid or solid at room temperature) as well as liquid droplets of gas and condensed vapors. "aerosol" herein encompasses aerosols generated when the aerosol-generating substrate 200 in the heated aerosol-generating article is heated and aerosols generated when the aerosol-generating substrate 200 in the combustible smoking article is combusted. In an embodiment of the invention, the aerosol-generating substrate 200 is preferably a strip-like structure.

Specifically, since the magnetic field intensity corresponding to the coil 30 between the first end 31 of the coil 30 and the second end 33 of the coil 30 is higher than the magnetic field intensity corresponding to the first end 31 of the coil 30 and the second end 33 of the coil 30 when the coil 30 is energized, the heat generated by the heat generating member 40 is uneven (i.e., less heat is generated at the portion of the heat generating member 40 near the first end 31 and the second end 33), so that the heating on the aerosol-generating substrate 200 is uneven, resulting in a poor atomization effect of the aerosol-generating substrate 200, and thus affecting the user's suction taste. In the embodiment of the application, the blocking portion 13 is opposite to the first end 31 of the coil 30 and/or the blocking portion 13 is opposite to the second end 33 of the coil 30, that is, the blocking portion 13 can prevent the magnetic field at the first end 31 of the coil 30 and/or the second end 33 of the coil 30 from leaking, so that the magnetic field intensity corresponding to the first end 31 of the coil 30 or the second end 33 of the coil 30 can be improved, the heat generated by the heating element 40 is more uniform, the atomization effect of the aerosol generating substrate 200 is further improved, and the suction taste of the user is ensured.

In some embodiments, the blocking portion 13 may be spaced opposite to the first end 31 of the coil 30 and/or the second end 33 of the coil 30, and may be capable of blocking leakage of the magnetic field of the end of the coil 30 to the outside. In other embodiments, the blocking portion 13 may abut the first end 31 of the coil 30 and/or the second end 33 of the coil 30, so that on one hand the blocking portion 13 can block the magnetic field at the end of the coil 30, thereby improving the utilization of the magnetic field; on the other hand, the blocking portion 13 is advantageous in fixing the coil 30, thereby improving the stability of the installation of the coil 30.

Referring to fig. 1 and 2, in some embodiments, in the loading direction Z of the accommodating cavity 21, the main body 11 includes a first end 111 and a second end 113 opposite to each other, and the blocking portion 13 is configured to at least partially block the opening 1111 of the first end 111 of the main body and/or the opening 1131 of the second end 113 of the main body.

Referring to fig. 2 to 4, in some embodiments, the blocking portion 13 may partially block the opening 1111 of the first end 111 of the main body and/or the opening 1131 of the second end 113 of the main body, i.e., the blocking portion 13 may partially block the magnetic field generated by the coil 30 corresponding to the opening 1111 of the first end 111 of the main body and/or the opening 1131 of the second end 113 of the main body, thereby reducing leakage of the magnetic field and improving energy efficiency of the aerosol-generating device 1000. Specifically, referring to fig. 2, fig. 2 is a schematic cross-sectional view of a portion of an aerosol-generating device according to a first embodiment of the present application, in which the blocking portion 13 may be opposite to a portion of the first end 31 of the coil 30 and partially block the opening 1111 of the first end 111 of the main body. Referring to fig. 3, fig. 3 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to the second embodiment of the present application, in which the blocking portion 13 may be opposite to a part of the second end portion 33 of the coil 30 and partially cover the opening 1131 of the second end 113 of the main body. Referring to fig. 4, fig. 4 is a schematic cross-sectional view of a part of the structure of an aerosol-generating device according to the third embodiment of the present application, in which the blocking portion 13 may be opposite to the first end 31 of the coil 30 and the second end 33 of the coil 30, and partially block the opening 1111 of the first end 111 of the main body and the opening 1131 of the second end 113 of the main body.

Referring to fig. 5 to 7, in other embodiments, the blocking portion 13 may completely block the opening 1111 of the first end 111 of the main body and/or the opening 1131 of the second end 113 of the main body, i.e. the blocking portion 13 may completely block the magnetic field at the first end 31 of the coil 30 and the second end 33 of the coil 30 from leaking, thereby, compared to the blocking portion 13 partially blocking the opening 1111 of the first end 111 of the main body and/or the opening 1131 of the second end 113 of the main body, the present embodiment can further increase the utilization rate of the magnetic field, so as to increase the energy efficiency of the aerosol generating device 1000; on the other hand, the magnetic field intensity corresponding to the first end 31 or the second end 33 can be improved, so that the uniformity of the heat generated by the heating element 40 is ensured, the atomization effect of the aerosol generating substrate 200 is further improved, and the suction taste of a user is ensured.

Referring to fig. 1, in some embodiments, the blocking portion 13 extends from the inner peripheral wall 115 of the main body portion toward the center of the accommodating chamber 15.

Specifically, in one embodiment, the blocking portion 13 may extend perpendicularly from the inner peripheral wall 115 of the main body portion (the side of the main body portion 11 facing the loading piece 20) toward the center of the accommodating chamber 15. In another embodiment, the blocking portion 13 may extend obliquely from the inner peripheral wall 115 of the main body portion toward the center of the accommodating chamber 15. In some embodiments, the blocking portion 13 may extend from any position on the inner peripheral wall 115 of the main body portion toward the center of the accommodating chamber 15, and in the loading direction Z, the blocking portion 13 is opposite to the first end 31 of the coil 30 and/or the second end 33 of the coil 30.

Referring to fig. 2 to 4, in one embodiment, the blocking portion 13 may extend from a portion of the inner peripheral wall 115 of the main body toward the center of the receiving cavity 15, such that the blocking portion 13 may partially block the opening 1111 of the first end 111 of the main body and/or the opening 1131 of the second end 113 of the main body. Referring to fig. 5 to 7, in another embodiment, the blocking portion 13 may extend from the entirety of the inner peripheral wall 115 of the main body portion toward the center of the receiving chamber 15, so that the blocking portion 13 can completely block the opening 1111 of the first end of the main body portion and/or the opening 1113 of the second end 113 of the main body portion.

Wherein, in the case that the number of the blocking parts 13 is one, the blocking parts 13 may extend from a portion of the inner peripheral wall 115 of the main body part toward the center of the accommodating chamber 15 to partially block the opening 1111 of the first end 111 of the main body part or the opening 1131 of the second end 113 of the main body part (shown in fig. 2 or 3); alternatively, the blocking portion 13 may extend from the entirety of the inner peripheral wall 115 of the main body portion toward the center of the accommodating chamber 15 to completely block the opening 1111 of the first end 111 of the main body portion or the opening 1131 of the second end 113 of the main body portion (shown in fig. 5 or 6). In the case where the number of the blocking portions 13 is two, and the two blocking portions 13 are opposite to the first end portion 31 and the second end portion 33, respectively, the two blocking portions 13 may each extend from a portion of the inner peripheral wall 115 of the main body portion toward the center of the accommodation chamber 15 to partially block the opening 1111 of the first end 111 of the main body portion and the opening 1131 of the second end 113 of the main body portion (shown in fig. 4); alternatively, both of the blocking portions 13 may extend toward the center of the accommodating chamber 15 from the entirety of the inner peripheral wall 115 of the main body portion to completely block the opening 1111 of the first end 111 of the main body portion and the opening 1131 of the second end 113 of the main body portion (shown in fig. 7); still alternatively, a portion of the inner circumferential wall 115 of one of the two blocking parts 13 may extend toward the center of the receiving chamber 15 to partially block the opening 1111 of the first end 111 of the body part or the opening 1131 of the second end 113 of the body part, and the other of the two blocking parts 13 may extend from the entirety of the inner circumferential wall 115 of the body part toward the center of the receiving chamber 15 to completely block the opening 1111 of the second end 111 of the body part or the opening 1131 of the first end 111 of the body part. It will be appreciated that the number of blocking portions 13 may also be plural, i.e. the first end 31 of the coil 30 and the second end 33 of the coil 30 may each be opposite to at least one blocking portion 13.

Referring to fig. 8 to 10, in other embodiments, the blocking portion 13 is disposed on an end surface of the main body 11.

Specifically, in the case where the number of the blocking portions 13 is one, the blocking portions 13 may cover the end face of the first end 111 of the main body portion or the end face of the second end 113 of the main body portion to block the opening 1111 of the first end 111 of the main body portion or the opening 1131 of the second end 113 of the main body portion (shown in fig. 8 or 9). In the case where the number of the blocking portions 13 is two, and the two blocking portions 13 are respectively opposed to the first end portion 31 and the second end portion 33, one of the two blocking portions 13 is provided to cover the end face of the first end 111 of the main body portion, and the other is provided to cover the end face of the second end 113 of the main body portion so as to block the opening 1111 of the first end 111 of the main body portion and the opening 1131 of the second end 113 of the main body portion (shown in fig. 10). It will be appreciated that the number of blocking portions 13 may also be plural, i.e. that each end face of the body portion 11 has at least one blocking portion 13.

In some embodiments, in the case where the number of the blocking portions 13 is two, the two blocking portions 13 are opposed to the first end portion 31 of the coil 30 and the second end portion 33 of the coil 30, respectively, in the loading direction Z. One of the two blocking portions 13 may extend from the inner peripheral wall 115 of the main body portion toward the center of the accommodating chamber 15, and the other may be provided to cover the end face of the main body portion 11. Wherein, when the blocking portion 13 extends from the inner circumferential wall 115 of the main body portion toward the center of the accommodating chamber 15, the blocking portion 13 may extend from a portion of the inner circumferential wall 115 of the main body portion toward the center of the accommodating chamber 15, or the blocking portion 13 may extend from the entirety of the inner circumferential wall 115 of the main body portion toward the center of the accommodating chamber 15.

Referring to fig. 1 to 10, in some embodiments, the body portion 11 and the blocking portion 13 may be integrally formed, i.e., the blocking portion 13 may be located at an inner peripheral wall 115 of the body portion and integrally formed with the body portion 11; or the blocking portion 13 may be located at an end surface of the main body portion 11 and integrally formed with the main body portion 11. On the one hand, the processing technology of the barrier 10 can be simplified, so that the production efficiency of the barrier 10 is improved; on the other hand, in the event of a collision of the aerosol-generating device 1000, the barrier 10 is less likely to break, and thus the stability of the operation of the heating assembly 100 can be improved. In other embodiments, the body portion 11 and the blocking portion 13 may be formed separately, i.e., the body portion 11 and the blocking portion 13 are of two structures, and the body portion 11 and the blocking portion 13 are connected to form the blocking member 10. The body 11 and the blocking portion 13 may be connected by bonding, welding, screwing, or fastening, but are not limited thereto.

In some embodiments, the blocking portion 13 is provided with a through hole 131. With the blocking portion 13 facing the first end 31 of the coil 30, the loading piece 20 protrudes into the accommodating chamber 15 through the through hole 131. When the blocking portion 13 is opposed to the second end 33 of the coil 30, the heat generating element 40 extends into the housing chamber 21 through the through hole 131.

Specifically, in some embodiments, the through holes 131 may be spaced apart from the loading member 20 or the heating member 40, so as to ensure the disassembly and assembly of the loading member 20 and the heating member 40, thereby improving the assembly efficiency of the heating assembly 100. In other embodiments, the through hole 131 may abut against the loading member 20 or the heating member 40, so that on one hand, leakage of the magnetic field from a gap between the through hole 131 and the loading member 20 or the heating member 40 can be prevented, thereby ensuring the utilization rate of the magnetic field and improving the energy efficiency of the aerosol generating device 1000; on the other hand, the supporting function of the loading piece 20 or the heating piece 40 can be achieved, so that the installation stability of the loading piece 20 or the heating piece 40 is improved. In some embodiments, the blocking portion 13 may not have the through hole 131. In particular, the heat generating component 40 may be pre-assembled inside the aerosol-generating substrate 200 such that the heat generating component 40 is integral with the aerosol-generating substrate 200 as a consumable. At this time, the heat generating component 40 does not need to extend into the accommodating cavity 21 through the through hole 131. After insertion into the aerosol-generating substrate 200, the heat-generating element 40 therein heats up and heats the aerosol-generating substrate 200 under the influence of the magnetic field.

Referring to fig. 1 and 11, in some embodiments, in the loading direction Z, the main body 11 may include a plurality of sub-portions 117, and the plurality of sub-portions 117 meet to form the main body 11. Compared with the main body 11 being a whole structure, the plurality of sub-parts 117 are connected to form the main body 11, on one hand, the length of the main body 11 can be conveniently adjusted according to the length of the coil 30, so that the applicability of the main body 11 is improved; on the other hand, can facilitate assembly of the barrier 10 with other structures of the heating assembly 100.

In some embodiments, in the loading direction Z, the outermost two of the plurality of sub-portions 117 each include a first end 1171 and a second end 1173, and the blocking portion 13 is configured to at least partially block the opening of the first end 1171 of the sub-portion and/or the opening of the second end 1173 of the sub-portion.

Specifically, referring to fig. 12, in some embodiments, in the case that the number of the sub-portions 117 is three, that is, in the loading direction Z, the main body portion 11 includes a first sub-portion 1175, a second sub-portion 1177, and a third sub-portion 1179, wherein the two outermost sub-portions are the first sub-portion 1175 and the third sub-portion 1179, the second sub-portion 1177 is located between the first sub-portion 1175 and the third sub-portion 1179, at this time, the first end 1171 of the sub-portion may be located on a side of the first sub-portion 1175 facing away from the second sub-portion 1177, and the second end 1173 of the sub-portion may be located on a side of the third sub-portion 1179 facing away from the second sub-portion 1177.

The blocking portion 13 in this embodiment is substantially the same as the blocking portion 13 in the above embodiment, and differs only in that:

in the present embodiment, the blocking portion 13 may extend from the inner peripheral walls of the outermost two sub-portions 117 of the plurality of sub-portions 117 toward the center of the accommodating chamber 15, and in the loading direction Z, the blocking portion 13 is opposed to the first end 31 of the coil 30 or the second end 33 of the coil 30; alternatively, the blocking portion 13 may be provided to cover end surfaces of two outermost sub-portions 117 among the plurality of sub-portions 117, and the blocking portion 13 may be opposed to the first end portion 31 of the coil 30 or the second end portion 33 of the coil 30 in the loading direction Z.

In some embodiments, the sub-portion 117 may include two, and the blocking portion 13 may include two, and the two sub-portions 117 correspond to the two blocking portions 13, respectively, and each sub-portion 117 meets the corresponding blocking portion 13 and constitutes one member, and the two members meet to form the receiving cavity 15. In some embodiments, the two components may be joined by bonding, welding, or screwing.

In some embodiments, the sub-portion 117 and the blocking portion 13 may be integrally formed, i.e., the blocking portion 13 may be located at an inner peripheral wall of the sub-portion 117 and integrally formed with the sub-portion 117; or the blocking portion 13 may be located at an end surface of the sub portion 117 and integrally formed with the sub portion 117. On the one hand, the processing technology of the component can be simplified, so that the production efficiency of the component and the barrier 10 is improved; on the other hand, in the event of a collision of the aerosol-generating device 1000, the components are less likely to break, and the operational stability of the heating assembly 100 can be improved. In other embodiments, the sub-portion 117 and the blocking portion 13 may be formed separately, i.e., the sub-portion 117 and the blocking portion 13 are two structures, and the sub-portion 117 and the blocking portion 13 are connected to form one piece. The sub-portion 117 and the blocking portion 13 may be connected by bonding, welding, screwing, or fastening, which is not limited herein.

In some embodiments, the length of both components may be the same in the loading direction Z. Thereby, on the one hand, the processing of the parts can be facilitated, and the production efficiency of the barrier 10 is improved; on the other hand, the appearance effect of the barrier 10 can be improved. Of course, in other embodiments, the lengths of the two components may be different in the loading direction Z.

Referring to fig. 13 and 14, in some embodiments, in the direction perpendicular to the loading direction Z, the barrier 10 may include a first member 118 and a second member 119 connected to each other, the first member 118 may include a first sub-body portion 1181, a first sub-blocking portion 1183 and a second sub-blocking portion 1185 located at opposite ends of the first sub-body portion 1181, the second member 119 may include a second sub-body portion 1191, a third sub-blocking portion 1193 and a fourth sub-blocking portion 1195 located at opposite ends of the second sub-body portion 1191, the first sub-body portion 1181 and the second sub-body portion 1191 are connected to form a body portion 11, the first sub-blocking portion 1183 is connected to the third sub-blocking portion 1193 correspondingly, and the second sub-blocking portion 1185 is connected to the fourth sub-blocking portion 1195 correspondingly.

In some embodiments, the first sub-blocking portion 1183 may extend from the inner peripheral wall of the first sub-body portion 1181 toward the center of the accommodating chamber 15; or the first sub-blocking portion 1183 may be disposed to cover an end surface of the first sub-body 1181. Wherein, when the blocking portion 13 extends from the inner circumferential wall of the first sub-body portion 1181 toward the center of the accommodating chamber 15, the blocking portion 13 may extend from a portion of the inner circumferential wall of the first sub-body portion 1181 toward the center of the accommodating chamber 15, or the blocking portion 13 may extend from the entirety of the inner circumferential wall of the first sub-body portion 1181 toward the center of the accommodating chamber 15. It is understood that the second sub-blocking portion 1185 and the first sub-body portion 1181, the third sub-blocking portion 1193 and the second sub-body portion 1191, and the arrangement between the fourth sub-blocking portion 1195 and the second sub-body portion 1191 are substantially the same as the arrangement between the first sub-blocking portion 1183 and the first sub-body portion 1181, and will not be described herein.

In some embodiments, the first sub-blocking portion 1183 and the first sub-main body portion 1181, and the second sub-blocking portion 1185 and the first sub-main body portion 1181 may be integrally formed, so that on one hand, the processing technology of the first component 118 can be simplified, and thus the production efficiency of the first component 118 is improved; on the other hand, in the event of a collision of the aerosol-generating device 1000, the first member 118 is less likely to break, and thus the operational stability of the heating assembly 100 can be improved. In other embodiments, the first sub-barrier 1183 and the first sub-body 1181, and the second sub-barrier 1185 and the first sub-body 1181 may be formed separately. The first sub-blocking portion 1183 and the first sub-body 1181, and the second sub-blocking portion 1185 and the first sub-body 1181 may be connected by bonding, welding, screwing, or fastening, which is not limited herein. It is to be understood that the molding manners between the third sub-blocking portion 1193 and the second sub-main body portion 1191, and the fourth sub-blocking portion 1195 and the second sub-main body portion 1191 are substantially the same as the molding manners between the first sub-blocking portion 1183 and the first sub-main body portion 1181, and the second sub-blocking portion 1185 and the first sub-main body portion 1181 in the above embodiment, and are not described herein.

In some embodiments, the first and second components 118, 119 may be identical in structure. For example, when the first member 118 and the second member 119 are connected by welding, bonding, or the like, that is, when the first member 118 and the second member 119 are connected by welding, bonding, or the like, between the first sub-body portion 1181 and the second sub-body portion 1191, between the first sub-blocking portion 1183 and the third sub-blocking portion 1193, and between the second sub-blocking portion 1185 and the fourth sub-blocking portion 1195, the structures of the first member 118 and the second member 119 may be identical. Compared with the structure difference of the first component 118 and the second component 119, the structure difference of the first component 118 and the second component 119 can facilitate the processing of the first component 118 and the second component 119, thereby improving the production efficiency of the barrier 10.

In other embodiments, the first and second members 118, 119 are not identical in structure. For example, when the first member 118 and the second member 119 are coupled by snap-fit, a protrusion is provided on one of the first member 118 and the second member 119, and a recess is provided on the other, and the protrusion is engaged with the recess to couple the first member 118 and the second member 119. At this time, the structures of the first member 118 and the second member 119 are not exactly the same. For another example, if the first sub-body 1181 is different from the second sub-body 1191 in size, the first member 118 is different from the second member 119 in size, and thus the first member 118 and the second member 119 are not completely identical in structure.

Referring to fig. 1, an aerosol-generating device 1000 according to an embodiment of the present application includes a heating assembly 100 and a housing 300 according to any of the above embodiments, wherein the heating assembly 100 is mounted in the housing 300.

In some embodiments, the aerosol-generating device 1000 may further comprise an electrical control board 400 and a power supply 500, wherein the electrical control board 400 is electrically connected to both the coil 30 and the power supply 500, the power supply 500 supplies power to the coil 30 to generate a magnetic field to the coil 30, and the electrical control board 400 can control the on/off of the current to enable the heat generating element 40 to start or stop heating the aerosol-generating substrate 200. Wherein, the electric control board 400 and the power supply 500 are both installed in the housing 300.

In the aerosol-generating device 1000 according to the embodiment of the present application, the coil 30 is accommodated in the accommodating cavity 15 surrounded by the blocking portion 13 and the main body 11, and in addition to the electromagnetic shielding effect of the main body 11, the blocking portion 13 can block at least part of the magnetic field at least one end portion of the coil 30, so that leakage of the magnetic field generated by energizing the coil 30 to the outside (the side of the blocking member 10 facing away from the coil 30) can be reduced or even avoided, so that the magnetic field can act on the heat generating member 40 more, the magnetic field utilization rate is improved, and the energy conversion efficiency of the aerosol-generating device 1000 is further improved.

In addition, if the magnetic field leaks, on one hand, interference is generated on other electronic components in the aerosol-generating device 1000, and normal operation of the aerosol-generating device 1000 is affected; on the other hand, radiation is generated, which leads to health effects for the user. The provision of the barrier 10 thereby enables to reduce or even avoid magnetic field leakage, so that on the one hand the proper operation of the aerosol-generating device 1000 can be ensured; on the other hand, the safety performance of the aerosol-generating device 1000 can be improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. Also, other implementations may be derived from the above-described embodiments, such that structural and logical substitutions and changes may be made without departing from the scope of this disclosure.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the patent. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (11)

1. A heating assembly, comprising:

the blocking piece comprises a main body part and a blocking part, and the blocking part is connected with the main body part and jointly encloses a containing cavity;

the loading piece is provided with a containing cavity, and at least part of the loading piece extends into the containing cavity;

a coil housed in the housing chamber and surrounding between the loading piece and the main body portion, the coil being for generating a magnetic field when energized, the blocking portion being for blocking at least part of the magnetic field at least one end portion of the coil; and

The heating piece is at least partially positioned in the accommodating cavity, and is used for generating heat under the condition that the coil is electrified to generate a magnetic field.

2. The heating assembly of claim 1, wherein the barrier has a thickness of 0.5mm-5.0mm; and/or

The thickness of the main body part is 0.5mm-5.0mm.

3. The heating assembly of claim 1 wherein the barrier is made of a soft magnetic material.

4. A heating assembly according to any one of claims 1-3, wherein the receiving cavity is for receiving an aerosol-generating substrate, the coil comprising opposed first and second ends in a loading direction of the receiving cavity, the blocking portion being opposed to the first end of the coil and/or the second end of the coil.

5. The heating assembly of claim 4, wherein the body portion includes opposing first and second ends in a loading direction of the receiving cavity, the blocking portion for at least partially shielding an opening of the first end of the body portion and/or an opening of the second end of the body portion;

the blocking part extends from the inner peripheral wall of the main body part towards the center of the accommodating cavity; or alternatively, the first and second heat exchangers may be,

the blocking part is covered on the end face of the main body part.

6. The heating assembly of claim 4, wherein the barrier is provided with a through hole;

the loading piece extends into the accommodating cavity through the penetrating hole under the condition that the blocking part is opposite to the first end part of the coil;

and under the condition that the blocking part is opposite to the second end part of the coil, the heating element stretches into the accommodating cavity through the through hole.

7. The heating assembly of claim 4, wherein in the loading direction the main body portion comprises a plurality of sub-portions, the plurality of sub-portions meeting to form the main body portion, the outermost two of the sub-portions respectively comprising a first end and a second end, the blocking portion for at least partially blocking an opening of the first end of the sub-portion and/or an opening of the second end of the sub-portion;

The blocking part extends from the inner peripheral wall of the sub part towards the center of the accommodating cavity; or alternatively, the first and second heat exchangers may be,

the blocking part is covered on the end face of the sub part.

8. The heating assembly of claim 7, wherein said sub-portions include two, said blocking portions include two, said two sub-portions corresponding to said two blocking portions, respectively, each of said sub-portions meeting with a corresponding one of said blocking portions and forming a single component, and said two components meeting to form said receiving cavity.

9. The heating assembly of claim 8, wherein the lengths of both of the components are the same in the loading direction.

10. The heating assembly of claim 4, wherein the barrier comprises, in a direction perpendicular to the loading direction, a first member and a second member that meet, the first member comprising a first sub-body portion and first and second sub-barrier portions at opposite ends of the first sub-body portion, the second member comprising a second sub-body portion and third and fourth sub-barrier portions at opposite ends of the second sub-body portion, the first sub-body portion and the second sub-body portion meeting to form the body portion, the first sub-barrier portion and the third sub-barrier portion meeting, and the second sub-barrier portion and the fourth sub-barrier portion meeting.

11. An aerosol-generating device, comprising:

the heating assembly of any one of claims 1-10; and

And the heating assembly is arranged in the shell.