CN116965590A

CN116965590A - Aerosol generating device

Info

Publication number: CN116965590A
Application number: CN202210424105.4A
Authority: CN
Inventors: 汪如军; 吴泽鑫; 徐中立; 李永海
Original assignee: Shenzhen FirstUnion Technology Co Ltd
Current assignee: Shenzhen FirstUnion Technology Co Ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2023-10-31
Also published as: WO2023202679A1

Abstract

The present application provides an aerosol-generating device comprising a housing having an insertion opening through which an aerosol-generating article is removably received within the housing; the shell is internally provided with: a heater configured to heat an aerosol-generating article received within the housing to generate an aerosol; a holder comprising a tubular body configured to hold the heater; the tubular body includes a first end proximate the insertion port and a second end opposite the first end; wherein the first end is retained within the housing and the second end is suspended within the housing. According to the application, as the second end of the retainer is suspended in the shell, the problem of overhigh temperature of the shell caused by radial heat conduction of higher heat of the second end of the retainer to the shell is avoided, and the use experience of a user is improved.

Description

Aerosol generating device

Technical Field

The application relates to the technical field of electronic atomization, in particular to an aerosol generating device.

Background

Smoking articles such as cigarettes and cigars burn tobacco during use to produce smoke. Attempts have been made to provide alternatives to these tobacco-burning articles by creating products that release compounds without burning. An example of such a product is a so-called heated non-combustible product, which releases a compound by heating tobacco rather than burning tobacco.

The inventors have found in carrying out the present application that a problem with existing aerosol-generating devices is that the means for holding or securing the heating element has a radial contact between the region of higher temperature and the housing, resulting in an excessive temperature of the housing, which reduces the user experience.

Disclosure of Invention

The application provides an aerosol generating device, which aims to solve the problem that the temperature of a shell of the existing aerosol generating device is too high.

In one aspect the application provides an aerosol-generating device comprising a housing having an insertion opening through which an aerosol-generating article is removably received within the housing; the shell is internally provided with:

a heater configured to heat an aerosol-generating article received within the housing to generate an aerosol;

a holder comprising a tubular body configured to hold the heater; the tubular body includes a first end proximate the insertion port and a second end opposite the first end; wherein the first end is retained within the housing and the second end is suspended within the housing.

Another aspect of the application provides an aerosol-generating device comprising a housing having an insertion opening through which the aerosol-generating article is removably received within the housing; the shell is internally provided with:

a holder including a first end adjacent the insertion port and a second end opposite the first end; the holder includes an elongate arm extending from the first end toward the second end, a tubular body extending longitudinally between the first end and the second end, and a securing arm between the tubular body and the elongate arm; at the first end, the tubular body, the extension arm, and the securing arm form a hanging structure to retain the retainer within the housing;

a heater having a proximal end and a distal end; the proximal end of the heater is configured to be insertable into an aerosol-generating article received within the housing, and the distal end of the heater is configured to be retained on the barrel of the second end.

According to the aerosol generating device provided by the application, as the second end of the retainer is suspended in the shell, the problem of overhigh temperature of the shell caused by radial heat conduction of higher heat of the second end of the retainer to the shell is avoided, and the use experience of a user is improved.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures are not to scale, unless expressly stated otherwise.

Fig. 1 is a schematic view of an aerosol-generating device and an aerosol-generating article provided by an embodiment of the present application;

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

fig. 3 is an exploded schematic view of an aerosol-generating device provided by an embodiment of the present application;

fig. 4 is a schematic cross-sectional view of an aerosol-generating device according to an embodiment of the present application;

FIG. 5 is an enlarged partial schematic view of FIG. 4;

FIG. 6 is a schematic view of a holder provided in an embodiment of the present application;

FIG. 7 is a schematic view of an insulation barrier provided in an embodiment of the present application;

FIG. 8 is a schematic view of a stent according to an embodiment of the present application;

fig. 9 is an enlarged partial schematic view in cross-section of an aerosol-generating device according to another embodiment of the present application;

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

FIG. 11 is an enlarged partial schematic view of FIG. 10;

FIG. 12 is a schematic view of an extractor provided in accordance with yet another embodiment of the present application;

FIG. 13 is a schematic view of a holder provided by yet another embodiment of the present application;

FIG. 14 is another schematic view from a perspective of a holder provided in accordance with yet another embodiment of the present application;

fig. 15 is a schematic cross-sectional view of an aerosol-generating device according to a further embodiment of the present application;

FIG. 16 is an enlarged partial schematic view of FIG. 15;

FIG. 17 is a schematic view of a holder and heater provided in accordance with yet another embodiment of the present application;

fig. 18 is an enlarged schematic view of a section of an aerosol-generating device according to a further embodiment of the application;

fig. 19 is a schematic view of an aerosol-generating device according to a further embodiment of the application.

Detailed Description

In order that the application may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper", "lower", "left", "right", "inner", "outer" and the like are used in this specification for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, an aerosol-generating device 100 according to an embodiment of the present application is provided, and the aerosol-generating device 100 is generally cylindrical and includes an upper housing 10, an extractor 20, a holder 30, a heat insulator 40, a sealing member 50, and a power supply assembly 60.

The upper case 10 is provided outside the extractor 20 and the holder 30, and the upper case 10 abuts against an end portion of an upper end of the extractor 20. The upper housing 10 and the lower housing 61 of the power supply assembly 60 constitute the outer shell of the aerosol-generating device 100, and the upper housing 10 is flush with the lower housing 61, keeping the appearance clean and uniform. The upper end of the upper housing 10 (or the mouth end of the aerosol-generating device 100) has an insertion opening through which the aerosol-generating article 200 is removably received in the chamber a.

The extractor 20 is used to extract the aerosol-generating article 200 received in the chamber a. The extractor 20 is configured in a tubular shape extending in the axial direction of the chamber a, and a hollow portion of the tubular shape forms at least part of the chamber a. When the extractor 20 does not extract the aerosol-generating article 200, its lower end protrudes into the holder 30 and its upper end is held on the end of the upper end of the holder 30.

As shown in fig. 6, the holder 30 includes a bottom end cap 30a, a tubular body 30b, a fixed arm 30c, and an extension arm 30d that are integrally formed. In particular, the method comprises the steps of,

the bottom end cap 30a extends generally in a lateral direction of the aerosol-generating device 100. Specifically, the bottom end cap 30a includes a cylindrical seat, a portion extending radially from the seat toward the outside of the aerosol-generating device 100; the housing extends towards the bottom wall of the aerosol-generating device 100. The housing has a through hole or a fixing hole, the shape of which matches the shape of the distal end of the heater 31. The proximal end of the heater 31 is configured to be insertable into the aerosol-generating article 200 received in the chamber a, and the distal end of the heater 31 is retained in the through-hole, which may be secured by welding, gluing, or the like.

Since the housing has a relatively large amount of heat due to direct contact between the housing and the distal end of the heater 31, the temperature is between 100 ℃ and 300 ℃, and thus, it is necessary to avoid direct radial contact between the housing and the inner side wall of the upper housing 10, as will be described in detail below. It is conceivable that the portion extending radially from the housing towards the outside of the aerosol-generating device 100, although not in direct contact with the distal end of the heater 31, is directly connected to the housing, and therefore the heat of this portion is equally large and it is also necessary to avoid direct radial contact with the inner side wall of the upper housing 10. Further, for the tubular body 30b, which is arranged around the chamber a, the heat of the tubular body 30b is also relatively large (the temperature is slightly lower than that of the bottom end cap 30 a), and consideration is also given to avoiding direct radial contact with the inner side wall of the upper housing 10. The above-mentioned portions of the holder can be regarded as portions in thermal contact with the heater 31.

In a preferred implementation, a seal is maintained between the distal end of the heater 31 and the bottom end cap 30a to prevent aerosol generated by atomization from flowing from the gap between the distal end of the heater 31 and the bottom end cap 30a into the power supply assembly 60.

In alternative implementations, the housing may extend towards the insertion opening, i.e. protrude from the housing towards the portion of the aerosol-generating device 100 that extends radially outward.

In an alternative implementation, a plurality of ribs are arranged on the inner wall of the seat body at intervals; thus, the rib abuts against the outer side wall of the heater 31 while the distal end of the heater 31 is held in the through hole. Thus, by providing the ribs, the contact area between the heater 31 and the bottom end cap 30a is reduced, and heat loss of the heater 31 is avoided.

In alternative implementations, the portion of the heater 31 near the distal end may have a flange or flange that may be retained in the through bore.

The tubular body 30b extends axially or longitudinally from the radially extending portion of the bottom end cap 30a towards the mouth end of the aerosol-generating device 100, and its extending end (upper end of the tubular body 30 b) may exceed the proximal end of the heater 31, the specific extension being not limited herein. The upper end of the tubular body 30b is disposed near the insertion port, and the lower end of the tubular body 30b is disposed near the partition 63a. The tubular body 30b and the bottom end cap 30a define a housing chamber in which the heater 31 is housed or held; bottom end cap 30a defines or forms the bottom wall of the receiving chamber and tubular body 30b defines or forms the side wall of the receiving chamber.

In an alternative implementation, the tubular body 30b is provided with a through hole (not shown) and a shield that can shield the through hole. When the aerosol-generating device 100 leaves the factory, the temperature calibration can be performed through the through hole, which is beneficial to improving the temperature accuracy of the aerosol-generating device 100.

The stationary arms 30c extend radially from the tubular body 30b towards the outside of the aerosol-generating device 100. The end of the upper end of the insulating member 40 forms or defines a support portion on which the fixing arm 30c is held. Thus, the fixing arm 30c is sandwiched between the support portion and the extractor 20. In other examples, the securing arm 30c may also be snap-fit with the support.

The extension arm 30d is generally tubular. The extension arm 30d extends axially or longitudinally from the fixed arm 30c towards the bottom end of the aerosol-generating device 100, and its extension end may also exceed the distal end of the heater 31 or the bottom end cap 30a, and the specific extension length is not limited.

In the present example, the heating method used by the heater 31 is not limited, and for example, resistance heating, electromagnetic induction heating (an induction coil matched with the heater 31 may be sleeved on the extension arm 30 d), infrared radiation heating, and the like may be applied. The shape of the heater 31 is not limited, and may be a sheet, a needle, or the like.

The insulator 40 is preferably made of a material having a relatively low thermal conductivity. The thermal shield 40 may prevent heat in the chamber a from being transferred directly to the enclosure, resulting in an excessive enclosure temperature.

As shown in fig. 7, the heat insulating member 40 includes a tubular body 40a, and a connecting portion 40b extending from the body 40a in a direction away from the body 40a, and the connecting portion 40b is substantially semi-tubular or has a large notch.

After assembly, the extension arm 30d of the retainer 30 is clamped between the inner side wall of the upper housing 10 and the outer side wall of the body 40a, further, a bump is arranged on the outer side wall of the extension arm 30d, a groove is arranged on the inner side wall of the upper housing 10, and the extension arm 30d can be buckled on the inner side wall of the upper housing 10 through the cooperation of the bump and the groove; the bottom cap 30a and the tubular body 30b are both accommodated in the body 40a, and the end portion of the upper end of the body 40a supports the fixing arm 30c.

The bottom end cap 30a and the tubular body 30b are each spaced apart from the body 40a in a transverse direction of the aerosol-generating device 100 to form a gap; wherein the lateral direction of the aerosol-generating device 100 comprises a width direction or a thickness direction of the aerosol-generating device 100 or is inclined to the width direction or the thickness direction of the aerosol-generating device 100; for a cylindrical aerosol-generating device 100, the lateral direction of the aerosol-generating device 100 comprises a radial direction of the aerosol-generating device 100 or is inclined to the radial direction of the aerosol-generating device 100.

It should be noted that the arrangement of the bottom end cap 30a and the body 40a at intervals along the lateral direction of the aerosol-generating device 100 includes at least the following cases (the tubular body 30b is similar to the above): there is no direct or indirect contact between bottom end cap 30a and body 40 a; the bottom end cover 30a is in indirect contact with the body 40a through a heat insulating material; insulation is provided between the bottom end cap 30a and the body 40a, but there is no indirect contact between the bottom end cap 30a and the body 40 a.

It should also be noted that, in other examples, the heat insulating member 40 may be replaced by an inner housing made of other materials, and the shape of the inner housing may refer to the heat insulating member 40 and the foregoing description.

The seal 50 is also sandwiched between the inner side wall of the upper case 10 and the outer side wall of the body 40 a; the connection portion 40b is sandwiched between the inner wall of the lower case 61 and the outer wall of the bracket 63, and the lower end portion thereof abuts on the stepped surface of the outer wall of the bracket 63.

The power supply assembly 60 includes a generally tubular lower housing 61, a battery cell 62 disposed within the lower housing 61, a bracket 63, and a circuit board 64.

A battery 62 for providing power; in a preferred implementation, the battery 62 is a rechargeable battery.

As shown in fig. 8, the holder 63 includes a partition 63a, a first housing chamber 63b, and a second housing chamber 63c.

After assembly, the partition 63a abuts against the step surface of the inner side wall of the connecting portion 40b, thereby dividing the space in the housing into approximately two spaces, namely, an upper space in which the extractor 20, the holder 30, the heater 31, the heat insulator 40 and the seal 50 are disposed, and a lower space in which the battery cell 62 and the circuit board 64 are disposed. In other examples, the spacer 63a may also be retained on the connection 40 b; for example, to the connection portion 40 b.

The first housing chamber 63b is for housing or assembling a vibration motor (not shown in the drawings), a circuit board 64, and the like; the second accommodating chamber 63c is located below the first accommodating chamber 63b, and is used for accommodating the battery cell 62 and the like.

In general, the heater 31 has leads, for example: electrode leads, leads of temperature sensors. These leads need to be electrically connected to the cells 62. The partition 63a is further provided with vias, and the number of the vias may be one or more, for example: the number of the plurality of vias is equal to the number of the leads, and the leads of the heater 31 may be electrically connected to the cells 62 after passing through the vias.

In an alternative example, the distal end of the heater 31 may have an electrical contact, and an electrical connector may be disposed within the power module 60, one end of the electrical connector may be electrically connected to the electrical core 62 after passing through the via of the spacer 63a, and the other end of the electrical connector may be disposed on the spacer 63a to form another electrical contact to contact the heater 31 to form an electrical connection. In this way, the holder 30 and the heater 31 may be fitted together into the housing of the aerosol-generating device 100 or removed from the housing of the aerosol-generating device 100; the assembly process of the aerosol-generating device 100 is reduced, and the assembly efficiency is improved. The electrical contact points can be connected in a POGO PIN mode and a clamping mode. An electrical connection conversion member can be further arranged between the electrical contact points, so that electrical connection can be formed by contacting the electrical connection conversion member.

The circuit board 64 is used for overall control of the aerosol-generating device 100.

As can be seen from the above, the bottom end cap 30a and the partition 63a are spaced apart to form a gap, and there is no heat conduction path of the solid medium (the cross section of the lead wire is small, and the heat of heat conduction is negligible), and there is no heat conduction path of the solid medium since the bottom end cap 30a and the tubular body 30b are both spaced apart from the body 40a in the lateral direction of the aerosol-generating device 100. Thus, the heat of the distal end of the heater 31 is higher or the majority thereof, and is thermally conducted to the upper housing 10 along the extended portion of the bottom end cap 30a, the tubular body 30b, the fixing arms 30 c; the heat conduction path is far greater than the interval distance between the outer side wall of the bottom end cover 30a and the inner side wall of the heat insulation member 40, so that the problem that the temperature of the outer shell is too high due to the fact that the far-end higher heat of the heater 31 is directly conducted to the outer shell in the radial direction is avoided, and the use experience of a user is improved. Further, since the problem of excessive temperature of the housing is preferably avoided, the lateral dimension of the aerosol-generating device 100 may be relatively reduced, thereby facilitating miniaturization of the aerosol-generating device 100. Preferably, the aerosol-generating device 100 has a transverse dimension of between 15mm and 20mm; further preferably, the aerosol-generating device 100 has a transverse dimension of between 15mm and 18mm; it is further preferred that the aerosol-generating device 100 has a transverse dimension of between 16mm and 18mm.

It is easily conceivable that the higher heat at the distal end of the heater 31 is thermally conducted along the tubular body 30b, and also facilitates the lifting of the heat of the chamber a.

The holder 30 may be held within the insulator 40 by the fixed arm 30c and the extension arm 30 d; on the other hand, the extension arm 30d is clamped between the inner side wall of the upper case 10 and the outer side wall of the body 40a of the heat insulator 40, and can further reduce heat transfer to the housing while fixing the holder 30.

In this example, the bottom end cap 30a, the tubular body 30b, the fixed arm 30c, and the extension arm 30d are all made of the same material. In an alternative example, the heat transferred from the heater 31 to the bottom end cap 30a, the tubular body 30b, and the fixed arm 30c is higher, and the heat transferred to the extension arm 30d is lower, so that the bottom end cap 30a, the tubular body 30b, and the fixed arm 30c may be made of a material having higher temperature resistance, and the extension arm 30d may be made of a material having lower temperature resistance, that is, a material different from that of the other parts; in this way, cost control is facilitated.

Further, an enclosed space surrounded by the partition 63a, the heat insulator 40, the fixing arm 30c, the tubular body 30b, the bottom end cap 30a, and the like, through which heat of the distal end of the heater 31 may be further transferred to the housing of the aerosol-generating device 100, for example: heat transfer is mainly performed by means of heat convection or heat radiation. When the sealing performance of the closed space is good, gas with very low heat conductivity coefficient can be filled or the vacuum is directly pumped, so that the closed space forms an air groove or a vacuum groove; in alternative implementations, the enclosed space may be filled with other insulating materials, such as aerogel. The insulating material may be in contact with the bottom end cap 30a (or the tubular body 30b; or the fixed arm 30 c) and/or the insulating member 40, or may be spaced apart from both the bottom end cap 30a (or the tubular body 30b; or the fixed arm 30 c) and/or the insulating member 40; the insulating material may be in contact with the partition 63a or may be kept at a distance; because of the very low thermal conductivity of the insulating material, in the event that the insulating material is in contact with both the bottom end cap 30a and the insulator 40, the amount of heat transferred between the bottom end cap 30a and the body 40a is negligible, i.e., the heat transfer path between the bottom end cap 30a and the body 40a, which is still free of solid media, or the heat transfer path increases. In this way, on the one hand, the problem of excessive housing temperature caused by a relatively high amount of direct radial heat conduction from the distal end of the heater 31 to the housing can be avoided; on the other hand, the size of the aerosol-generating device 100 in the radial direction can be reduced, facilitating miniaturization.

It will be appreciated that when no insulating material is provided, the bottom end cap 30a is not in direct or indirect contact with the insulating member 40 and the partition 63a, i.e., the bottom end cap 30a is suspended within the upper housing 10, and the lower end of the retainer 30 is also suspended within the upper housing 10; at this time, the holder 30 forms a hanging structure, and the holder 30 is hung on the supporting portion.

Fig. 9 is a schematic cross-sectional view of an aerosol-generating device according to another embodiment of the application.

Unlike the example of fig. 1-8, the tubular body 30b, the fixed arm 30c, and the extension arm 30d of the holder 30 are integrally formed, while the bottom end cap 30a is an interference fit connection with the tubular body 30b, the bottom end cap 30a sealing the lower end portion of the tubular body 30 b. Specifically, a portion of the bottom end cap 30a is received within the tubular body 30b, and the bottom end cap 30a is also sealed to the tubular body 30b by a seal.

In further contrast to the example of fig. 1-8, the end of the end cap 30a has an extension (not shown) extending longitudinally towards the shelf 63a of the holder 63 or the bottom end of the aerosol-generating device, which extension is retained on the shelf 63a. Another extension extending toward bottom end cap 30a may also be provided on spacer 63a to support bottom end cap 30a. The connection between the two can be maintained with a smaller contact area by the extension, avoiding more heat transfer or conduction to the partition 63a. In an alternative implementation, it is also possible that the end of the bottom end cap 30a is not provided with an extension, and that the end of the first portion end 30a is held directly or abuts against the partition 63a.

In the example of fig. 9, since the distal end of the heater 31 is fixed in the fixing hole provided at the lower end of the tubular body 30b, the heat of the distal end of the heater 31 is conducted to the casing along the tubular body 30b, the fixing arm 30c, and the heat is conducted to the casing along the extended portion of the bottom end cover 30a, the bracket 63, the heat insulator 40, and the reheat; whichever heat conduction path is larger than the distance between the outer side wall of the bottom end cover 30a and the inner side wall of the heat insulation member 40, the problem that the temperature of the outer shell is too high due to the fact that the radial heat conduction of the far end of the heater 31 is directly conducted to the outer shell in a high amount is avoided, and the use experience of a user is improved.

Fig. 10-14 are schematic views of an aerosol-generating device and components thereof provided in accordance with yet another embodiment of the present application.

Unlike the example of fig. 1-8, the bottom end cap 30a, the tubular body 30b, and the fixed arm 30c of the holder 30 are integrally formed, and the fixed arm 30c is held on the extension arm 30d, i.e., the end of the upper end of the extension arm 30d forms or defines a support portion to support the fixed arm 30c.

Unlike the example of fig. 1-8, the outer surface of the holder 30 is also provided with a recess 30e for receiving a first electrical connector (not shown). The groove 30e is arranged on the bottom end cap 30a, the tubular body 30b and the fixing arm 30c of the holder 30 and matches the shape of the first electrical connector. The leads in the heater 31 may be soldered directly to one end of the first electrical connector (disposed on the bottom end cap 30 a). The aerosol-generating device 100 further comprises a second electrical connection arranged along the thermal insulation 40. Specifically, one end of the second electrical connector is held in contact with the other end of the first electrical connector (disposed on the bottom end cap 30 a) to form an electrical connection, and the other end of the second electrical connector is electrically connected to the electrical core 62 after passing through a via hole in the partition 63a of the bracket 63. In alternative examples, the insulation 40 itself may be made of an electrically conductive material; in this way, the upper end of the insulating member 40 is held in contact with the other end of the first electrical connector (disposed on the bottom end cap 30 a) to form an electrical connection, and the lower end of the insulating member 40 is electrically connected to the battery cell 62 after passing through the via hole in the partition 63a of the bracket 63. The first electrical connector and the second electrical connector may each be provided with protruding electrical contacts so as to be in contact with each other to form an electrical connection.

Unlike the examples of fig. 1 to 8, the holder 30 is further provided with a through hole 30f on a side wall thereof, the extractor 20 is provided with a projection 20a on an outer side wall thereof, and the upper case 10 is provided with a magnetic member 10a; the upper end of the extractor 20 is fixed to the upper case 10 at a portion protruding radially outward. After assembly, the bump 20a is snapped into the through hole 30 f. Initially, the holder 30 is held within the aerosol-generating device 100 due to the magnetic attraction between the magnetic member 10a and the electrical connection. When the user pulls out the upper housing 10 upward, the upper housing 10 drives the extractor 20 to move upward, and the bump 20a moves upward in the through hole 30 f; when the bump 20a moves to the upper end of the through hole 30f, the bump 20a is restrained, and at this time, the aerosol-generating article 200 is separated from the heater 31 (or a part of the heater 31 is still in the aerosol-generating article 200), and the first electrical connector and the second electrical connector are also in a separated contact state. Continuing to withdraw the upper housing 10 upwards, the holder 30 (except for the extension arm 30 d) may be detached from the aerosol-generating device 100 together with the extractor 20 and the upper housing 10.

In other embodiments, any two of the bottom end cap 30a, the tubular body 30b, the fixed arm 30c, and the extension arm 30d of the holder 30 are formed separately; alternatively, it is possible that the tubular body 30b and the fixed arm 30c are integrally formed, the bottom end cap 30a and the tubular body 30b are separated, and the extension arm 30d and the fixed arm 30c are separated.

Fig. 15-17 are schematic views of an aerosol-generating device and components thereof provided in accordance with yet another embodiment of the present application.

Unlike the examples of fig. 1 to 8, the bottom end cap 30a, the tubular body 30b, and the fixing arm 30c of the holder 30 are integrally formed, and may be fixed or integrally formed by an in-mold injection, a two-shot injection, or an adhesive process, etc.; the holder 30 is not provided with the extension arm 30d. The holder 30 and the heater 31 may be integrally fitted into the housing of the aerosol-generating device 100 or removed from the housing of the aerosol-generating device 100.

Specifically, the bottom end cap 30a includes a base, an extension extending radially from the base toward the outside of the aerosol-generating device 100 (or an outer sidewall of the bottom end cap 30 a). The seat body has an upper open end, a lower open end opposite to the upper open end, and a fixing hole extending from the upper open end to the lower open end. The fixing hole is matched with the shape of the distal end of the heater 31, the outer side wall of the heater 31 near the distal end is abutted against the inner wall of the fixing hole, and the distal end of the heater 31 can be accommodated in the fixing hole or extend out of the lower open end.

The tubular body 30b is configured as a tube that surrounds at least part of the chamber a and extends in the longitudinal or axial direction of the chamber a, and the outer side wall of the bottom end cap 30a is further provided with a first step. A part of bottom end cover 30a extends into the tubular body 30b, the lower end of the tubular body 30b is abutted against the first step, and the inner wall of the tubular body 30b close to the lower end of the tubular body is contacted with the outer side wall of the bottom end cover 30 a; part of the fixing arm 30c extends into the tubular body 30b, the upper end of the tubular body 30b is abutted against a second step on the outer side wall of the fixing arm 30c, and the inner wall of the tubular body 30b near the upper end thereof is in contact with the outer side wall of the fixing arm 30c. It is easily conceivable that the upper end of the tubular body 30b extends into the fixing arm 30c, and that a step is provided on the inner wall of the fixing arm 30c is also possible; similarly, the lower end of the tubular body 30b and the bottom end cap 30a are also possible. In other examples, a recess may be provided in bottom end cap 30a, in which the lower end of tubular body 30b may be snapped into place; the fixed arm 30c is similar thereto.

Fig. 18 is an enlarged schematic view of a section of an aerosol-generating device according to a further embodiment of the application.

Unlike the examples of fig. 1-8, the heater 31 is configured to heat around or encase at least a portion of the aerosol-generating article 200, a manner commonly referred to as circumferential or peripheral heating. The heating method used for the heater 31 is not limited, and for example, resistance heating, electromagnetic induction heating, infrared radiation heating, and the like may be applied. The shape of the heater 31 is also not limited, and may be configured as a tubular structure extending in the axial direction around at least part of the aerosol-generating article 200, and may be, for example, sheet-like, semi-cylindrical, or the like.

It should be noted that, in the above air heating manner, heated air may enter the bottom end of the aerosol-generating article 200, so as to heat the aerosol-generating article 200; and/or the heat of the hot air is transferred to the side walls of the aerosol-generating article 200 through the highly thermally conductive material, thereby heating the aerosol-generating article 200. The manner in which the air is heated is not limited, and may be resistance heating, electromagnetic induction heating, infrared radiation heating, or the like.

Unlike the examples of fig. 1-8, the heater 31 is held at the lower end of the tubular body 30 b. Specifically, the end of the lower end of the heater 31 is abutted against the bottom end cap 30a of the holder 30, the tubular body 30b of the holder 30 is sleeved outside the heater 31, and the heater 31 may be in direct contact with the tubular body 30b or in contact with the tubular body 30b through a fixing member; the bottom end cover 30a is suspended on the partition plate 63a, namely a gap is formed between the bottom end cover 30a and the partition plate 63a at intervals, and no heat conduction path of solid medium exists; the bottom end cap 30a and the tubular body 30b are each spaced apart from the body 40a of the insulator 40 in a transverse direction of the aerosol-generating device 100 to form a gap, and there is no thermally conductive path for the solid medium. Thus, the heater 31 is high or most of the heat is thermally conducted to the upper housing 10 along the tubular body 30b, the fixed arm 30 c; the heat conduction path is far greater than the distance between the tubular body 30b and the inner side wall of the heat insulating member 40, so that the problem that the temperature of the outer shell is too high due to the fact that the heat of the heater 31 is directly and radially conducted to the outer shell is avoided, and the use experience of a user is improved.

In other examples, the heat of the lower end portion of the heater 31 is generally low, and the bottom end cap 30a may be held on the partition 63a (e.g., as in the case illustrated by fig. 9); thus, part of the heat of the heater 31 is conducted to the outer shell through the bottom cover 30a, the bracket 63, the heat insulator 40, and the reheat; the heat conduction path is also larger than the distance between the tubular body 30b and the inner side wall of the heat insulating member 40, so that the problem that the temperature of the outer shell is too high due to direct radial heat conduction of higher heat of the heater 31 to the outer shell can be avoided, and the use experience of a user is improved.

Unlike the examples of fig. 1 to 8, the heater 31 includes an air heating portion 31a and a heat conduction portion 31b. The air heating portion 31a heats the inflow air (indicated by the broken-line arrow), and the generated hot air can bake the aerosol-generating article 200; the heat conduction portion 31b is made of a high heat conduction material, and the heat conduction portion 31b is connected to the air heating portion 31 a; after the heat conduction portion 31b is warmed up, heat is transferred to the outer peripheral wall of the aerosol-generating article 200, and the aerosol-generating article 200 is baked.

Similar to the foregoing, the holder 30 is configured to hold the heater 31, the specific structure and function of which can be referred to the foregoing.

It should be noted that the description of the present application and the accompanying drawings illustrate preferred embodiments of the present application, but the present application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations of the application, but are provided for a more thorough understanding of the present application. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present application described in the specification; further, modifications and variations of the present application may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this application as defined in the appended claims.

Claims

1. An aerosol-generating device comprising a housing having an insertion opening through which an aerosol-generating article is removably received within the housing; the novel energy-saving shell is characterized in that:

a holder comprising a tubular body configured to hold the heater; the tubular body includes a first end proximate the insertion port and a second end opposite the first end;

wherein the first end is retained within the housing and the second end is suspended within the housing.

2. The aerosol-generating device according to claim 1, wherein the heater comprises at least one of a resistive heating element, an electromagnetic heating element, an air heating element, an infrared heating element.

3. An aerosol-generating device according to claim 1, wherein the heater is held at the second end; wherein the method comprises the steps of

The heater is directly contacted with the inner side wall or the bottom wall of the tubular body; or alternatively

The heater is in contact with the tubular body via a fixture.

4. An aerosol-generating device according to any of claims 1-3, wherein the aerosol-generating device further comprises a support portion;

the retainer further comprises a fixing arm, one end of the fixing arm is connected with the tubular body, and the other end of the fixing arm extends towards the direction of the shell;

the fixed arm is held on the support portion.

5. An aerosol-generating device according to any of claims 1-3, wherein the aerosol-generating device further comprises a support portion;

the holder further comprises a fixed arm and an extension arm;

one end of the fixed arm is connected with the tubular body, and the other end extends towards the direction of the shell; one end of the extension arm is connected with the fixed arm, and the other end extends towards the bottom end direction of the aerosol generating device;

the fixed arm, the extension arm and the tubular body form a hanging structure such that the holder is hung on the support.

6. An aerosol-generating device according to claim 5, wherein the holder is integrally formed.

7. An aerosol-generating device according to claim 5, wherein the elongate arms are of a different material to the tubular body, and wherein the tubular body is of a higher temperature resistance than the elongate arm portions.

8. An aerosol-generating device according to claim 4 or 7, wherein the proximal end of the heater is configured to be insertable into an aerosol-generating article received within the housing; the tubular body is provided with a fixing hole of the heater at the second end for insertion and fixation of the distal end of the heater.

9. An aerosol-generating device according to claim 4 or 7, wherein the heater is configured to encase the aerosol-generating article; the holder also includes a bottom end cap that seals the second end of the tubular body and secures the heater to retain the heater inside the tubular body.

10. An aerosol-generating device according to claim 4 or 5, further comprising an insulation member, one end of which is configured as the support portion; or alternatively, the process may be performed,

the aerosol-generating device further includes an inner housing disposed inside the outer housing, one end of the inner housing being configured as the support portion.

11. An aerosol-generating device according to claim 1, wherein an air or vacuum channel is provided between the second end of the tubular body and the housing, or

A thermal insulation material is disposed between the second end of the tubular body and the outer shell.

12. An aerosol-generating device according to claim 1, wherein the tubular body is provided with a through-hole and a shield corresponding to the through-hole.

13. An aerosol-generating device according to claim 1, wherein the holder and the heater are configured to be removable together from the aerosol-generating device.

14. An aerosol-generating device according to claim 1, further comprising a baffle and a battery cell arranged between the baffle and a bottom end of the aerosol-generating device, the second end being suspended above the baffle.

15. The aerosol-generating device of claim 14, wherein the separator has a via, the heater further comprising a lead that is electrically connected to the electrical core after passing through the via; or alternatively, the process may be performed,

the separator is provided with a first electric contact point electrically connected with the electric core, and the heater also comprises a second electric contact point; the first electrical contact may be in contact with the second electrical contact via an electrical connection switch to form an electrical connection.

16. An aerosol-generating device comprising a housing having an insertion opening through which the aerosol-generating article is removably received within the housing; the novel energy-saving shell is characterized in that:

a heater having a proximal end and a distal end; the proximal end of the heater is configured to be insertable into an aerosol-generating article received within the housing, and the distal end of the heater is configured to be retained at the second end.

17. An aerosol-generating device according to claim 16, wherein the aerosol-generating device has a transverse dimension of from 15mm to 20mm.