CN217609538U

CN217609538U - Aerosol generating device

Info

Publication number: CN217609538U
Application number: CN202220936433.8U
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: 2022-10-21
Anticipated expiration: 2032-04-21

Abstract

An aerosol-generating device includes 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 including a tubular body configured to hold the heater; the tubular body includes a first end proximate the insertion opening, and a second end opposite the first end; wherein the first end is retained within the housing and the second end is disposed within the housing in suspension. This application has avoided the higher radial heat-conduction of heat of keeper second end to the shell because the unsettled arrangement of second end of keeper is in the shell, leads to the problem of shell high temperature, has promoted user's use and has experienced.

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 an aerosol. 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 heat not burn product, which releases compounds by heating tobacco instead of burning tobacco.

The inventor has found in the course of the present application that a problem with existing aerosol-generating devices is that the means for retaining or securing the heating element, which is in radial contact with the housing in the region of higher temperature, results in an excessive temperature of the housing which reduces the user experience.

SUMMERY OF THE UTILITY MODEL

The application provides an aerosol-generating device to solve the problem that the shell temperature that current aerosol-generating device exists is too high.

An aspect of 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 including a tubular body configured to hold the heater; the tubular body comprises a first end close to the insertion opening, and a second end opposite to the first end; wherein the first end is retained within the housing and the second end is disposed within the housing in suspension.

Another aspect of the present 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 retainer including a first end proximate the insertion opening and a second end opposite the first end; said holder including an elongated arm extending from said first end in a direction toward said second end, a tubular body extending longitudinally between said first end and said second end, and a securing arm between said tubular body and said elongated arm; at said first end, said tubular body, said extension arm and said securing arm forming a hanging structure to retain said retainer within said housing;

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

The application provides an aerosol generation device, because the second end unsettled arrangement of holder has avoided the radial heat-conduction to the shell of the higher heat of holder second end, leads to the problem of shell high temperature, has promoted user's use and has experienced.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings which correspond to figures and are not to be construed as limiting the embodiments, in which elements having the same reference numeral designations represent like elements throughout, and in which the drawings are not to be construed as limiting in scale unless otherwise specified.

Figure 1 is a schematic diagram of an aerosol-generating device and an aerosol-generating article provided by embodiments of the present application;

figure 2 is a schematic diagram of an aerosol-generating device provided by an embodiment of the present application;

figure 3 is an exploded schematic view of an aerosol-generating device provided by embodiments of the present application;

figure 4 is a schematic cross-sectional view of an aerosol-generating device provided by 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 retainer provided by an embodiment of the present application;

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

FIG. 8 is a schematic view of a stent provided in accordance with an embodiment of the present application;

figure 9 is an enlarged partial schematic view in cross-section of an aerosol-generating device provided in accordance with another embodiment of the present application;

figure 10 is a schematic cross-sectional view of an aerosol-generating device provided in accordance with a further embodiment of the present application;

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

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

FIG. 13 is a schematic view of a retainer provided in accordance with yet another embodiment of the present application;

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

figure 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;

figure 18 is an enlarged partial schematic view in cross-section of an aerosol-generating device according to a further embodiment of the present application;

figure 19 is a schematic view of an aerosol-generating device according to yet another embodiment of the present application.

Detailed Description

To facilitate an understanding of the present application, the present application is described in more detail below with reference to the following figures and detailed description. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may 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 be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are 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 present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and/or" 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 invention is an aerosol-generating device 100 having an overall cylindrical shape, and includes an upper case 10, an extractor 20, a holder 30, a heat insulator 40, a seal 50, and a power module 60.

The upper case 10 is disposed outside the extractor 20 and the holder 30, and the upper case 10 abuts on 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 form the outer shell of the aerosol-generating device 100, and the upper housing 10 and the lower housing 61 are flush, keeping the appearance neat. 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 for extracting the aerosol-generating article 200 received in the chamber a. The extractor 20 is configured as a tube extending in the axial direction of the chamber a, the hollow part of the tube forming at least part of the chamber a. When the extractor 20 is not extracting the aerosol-generating article 200, its lower end projects into the holder 30 and its upper end is retained 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 fixing arm 30c, and an extension arm 30d, which are integrally formed. In particular, the amount of the solvent to be used,

the bottom end-cap 30a extends generally in the transverse direction of the aerosol-generating device 100. In particular, the bottom end-cap 30a comprises a seat in the shape of a cylinder, a portion extending radially outwards from the seat towards the aerosol-generating device 100; the seat extends towards the bottom wall of the aerosol-generating device 100. The seat body 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 and may be secured by welding, gluing or the like.

Since the seat body is directly contacted with the distal end of the heater 31, the seat body has a large heat quantity, the temperature is between 100 ℃ and 300 ℃, so that it is necessary to avoid the direct radial contact between the seat body and the inner side wall of the upper housing 10, which will be described in detail below. It is envisaged 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 also greater and it is also necessary to avoid direct radial contact with the inside wall of the upper housing 10. Further, with tubular body 30b, which is arranged around chamber a, the heat of tubular body 30b is also greater (at a temperature slightly lower than that of bottom end cap 30 a), also taking into account avoiding direct radial contact with the inner side wall of upper shell 10. The above-described portions of the holder may be regarded as portions that are in thermal contact with the heater 31.

In a preferred embodiment, 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 into the power module 60 from the gap between the distal end of the heater 31 and the bottom end cap 30a.

In an alternative embodiment, the seat body may extend towards the insertion opening, i.e. protrude from the portion of the seat body extending radially outwards from the seat body towards the aerosol-generating device 100.

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

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

The tubular body 30b extends axially or longitudinally from a radially extending portion of the bottom end cap 30a towards the mouth end of the aerosol-generating device 100, and its extending end (the upper end of the tubular body 30 b) may exceed the proximal end of the heater 31, and the specific extending length is 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 plate 63a. The tubular body 30b and the bottom end cap 30a enclose to form a containing cavity, and the heater 31 is contained or kept in the containing cavity; the bottom end cap 30a defines or forms the bottom wall of the housing chamber, and the tubular body 30b defines or forms the side wall of the housing chamber.

In an alternative embodiment, the tubular body 30b is provided with a through hole (not shown) and a shielding member for shielding the through hole. When the aerosol-generating device 100 leaves the factory, the temperature can be corrected through the through hole, and the temperature accuracy of the aerosol-generating device 100 can be improved.

A securing arm 30c extends radially outward from the tubular body 30b toward the aerosol-generating device 100. The end of the upper end of the heat insulator 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 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 the extension end thereof 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 this example, the heating method used by the heater 31 is not limited, and for example, resistance heating, electromagnetic induction heating (an induction coil configured with the heater 31 can be sleeved on the extension arm 30 d), infrared radiation heating, and the like can be applied. The shape of the heater 31 is not limited, and may be a sheet, a needle, or the like.

The thermal insulation members 40 are preferably made of a material having a low thermal conductivity. The thermal insulation member 40 can prevent heat in the chamber a from being directly transferred to the housing, resulting in excessive temperature of the housing.

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

After assembly, the extension arm 30d of the holder 30 is clamped between the inner side wall of the upper housing 10 and the outer side wall of the body 40a, further, a projection 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 matching of the projection and the groove; the bottom end cap 30a and the tubular body 30b are housed inside the body 40a, and the end of the upper end of the body 40a supports the fixing arm 30c.

The bottom end cap 30a and the tubular body 30b are both spaced from the body 40a in the transverse direction of the aerosol-generating device 100 to form a gap; wherein the transverse direction of the aerosol-generating device 100 comprises a width direction or a thickness direction of the aerosol-generating device 100, or is oblique to the width direction or the thickness direction of the aerosol-generating device 100; for a cylindrical aerosol-generating device 100, the transverse direction of the aerosol-generating device 100 comprises the radial direction of the aerosol-generating device 100, or is oblique 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 a distance in the transverse direction of the aerosol-generating device 100 at least includes the following (and the tubular body 30b is similar to this): there is no direct or indirect contact between the bottom end cap 30a and the body 40 a; the bottom end cap 30a and the body 40a are in indirect contact through an insulating material; an insulating material is disposed between bottom end cap 30a and body 40a, but there is no indirect contact between bottom end cap 30a and body 40 a.

It should also be noted that in other examples, the insulation 40 may be replaced by an inner shell made of other materials, and the shape of the inner shell may refer to the insulation 40 and the above description.

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

The power module 60 includes a substantially tubular lower case 61, and a battery cell 62, a holder 63, and a circuit board 64 provided in the lower case 61.

The battery cell 62 is used for providing power; in a preferred implementation, the cells 62 are rechargeable cells.

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

After assembly, the partition 63a abuts on the step surface of the inner side wall of the connecting portion 40b, thereby roughly dividing the space inside the casing into two upper and lower spaces, the extractor 20, the holder 30, the heater 31, the heat insulator 40, and the seal 50 all being disposed in the upper space, and the battery cell 62 and the circuit board 64 being disposed in the lower space. In other examples, the partition 63a may also be retained on the connecting portion 40 b; for example, snap-fit to the connecting portion 40 b.

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

Generally, the heater 31 has leads such as: electrode lead wires, lead wires of a temperature sensor. These leads need to be electrically connected to the cells 62. The partition 63a is further provided with one or more through holes, and the number of the through holes may be one or more, for example: the leads of the heater 31 may be electrically connected to the battery cells 62 after passing through the plurality of via holes, which are equal in number to the leads.

In an alternative example, the end of the heater 31 at the far end may have an electrical contact point, an electrical connector may be disposed in the power module 60, one end of the electrical connector may be electrically connected to the battery cell 62 after passing through the through hole of the partition 63a, and the other end of the electrical connector is disposed on the partition 63a to form another electrical contact point for contacting and electrically connecting with the heater 31. In this way, the holder 30 and heater 31 may be fitted together into, 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 electric contacts can be connected in a POGO PIN mode or a clamping mode. An electrical connection conversion member may be disposed between the electrical contacts to form an electrical connection 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 for the solid medium (the cross section of the lead wires is small, and the heat of heat conduction is negligible), and there is no heat conduction path for the solid medium because the bottom end cap 30a and the tubular body 30b are both spaced apart from the body 40a in the transverse direction of the aerosol-generating device 100 to form a gap. Thus, the higher or most of the heat at the distal end of the heater 31 is conducted to the upper housing 10 along the extension of the bottom end cap 30a, the tubular body 30b, and the fixing arm 30 c; this heat conduction path is the spacing distance that is greater than far away between the lateral wall of bottom end lid 30a and the inside wall of heat-insulating part 40, avoids the direct radial heat-conduction of the higher heat in heater 31 distal end to the shell, leads to the too high problem of shell temperature, has promoted user's use and has experienced. Further, as the problem of excessive housing temperatures is better avoided, the transverse 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 dimension in the transverse direction of from 15mm to 20mm; further preferably, the aerosol-generating device 100 has a dimension in the transverse direction of between 15mm and 18mm; it is further preferred that the aerosol-generating device 100 has a dimension in the transverse direction of 16mm to 18mm.

It will be appreciated that the higher heat transfer from the distal end of the heater 31 along the tubular body 30b also contributes to the heat transfer from the chamber a.

The holder 30 can be held in the heat insulator 40 by the fixing arm 30c and the extension arm 30 d; on the other hand, the extension arm 30d is held between the inner wall of the upper case 10 and the outer wall of the body 40a of the heat insulator 40, thereby fixing the holder 30 and further reducing heat transfer to the housing.

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 fixing 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 fixing arm 30c can be made of a material with higher temperature resistance, and the extension arm 30d can be made of a material with lower temperature resistance, i.e. different from the materials of other parts; thus, cost control is facilitated.

Further, the enclosed space enclosed by the partition 63a, the thermal insulation member 40, the fixing arm 30c, the tubular body 30b, the bottom end cap 30a, etc. may also transfer heat from the far end of the heater 31 to the housing of the aerosol-generating device 100 through the enclosed space, for example: heat transfer is primarily by means of thermal convection or thermal radiation. When the sealing performance of the closed space is good, gas with very low heat conductivity coefficient can be filled or directly vacuumized, so that an air groove or a vacuum groove is formed in the closed space; in alternative implementations, the enclosed space may be filled with other insulating materials, such as aerogel. The insulating material can be in contact with the bottom end-cap 30a (or tubular body 30b; or fixed arm 30 c) and/or the insulating element 40, or can be spaced from both the bottom end-cap 30a (or tubular body 30b; fixed arm 30 c) and/or the insulating element 40; the heat insulating material may contact or maintain a space with the partition 63 a; since the thermal conductivity of the insulation material is very low, in the case where the insulation material is in contact with both bottom end cap 30a and insulation 40, the amount of heat transfer between bottom end cap 30a and body 40a is negligible, i.e., the heat transfer path between bottom end cap 30a and body 40a is still solid media free or the heat transfer path is increased. Therefore, on one hand, the problem that the temperature of the shell is too high due to the fact that the far end of the heater 31 directly conducts heat in the radial direction to the shell in a high quantity can be avoided; on the other hand, the size of the aerosol-generating device 100 in the radial direction may be reduced, facilitating miniaturization.

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

Figure 9 is a schematic cross-sectional view of an aerosol-generating device provided in accordance with another embodiment of the present application.

Unlike the example of fig. 1-8, the tubular body 30b, the fixed arm 30c and the extension arm 30d of the retainer 30 are integrally formed, while the bottom end cap 30a is in interference fit connection with the tubular body 30b, the bottom end cap 30a sealing the lower end of the tubular body 30 b. Specifically, part of the bottom end cap 30a is housed inside the tubular body 30b, the seal between the bottom end cap 30a and the tubular body 30b being also maintained by means of a seal.

Also unlike the example of figures 1-8, the end of one end of the bottom end cap 30a has an extension (not shown) extending longitudinally towards the partition 63a of the stand 63 or the bottom end of the aerosol-generating device, which extension is retained on the partition 63a. Another extension part extending toward the bottom end cap 30a may also be provided on the partition plate 63a to support the bottom end cap 30a. The extension portion can maintain the connection between the two with a small contact area, and prevent a large amount of heat from being transferred or conducted to the partition plate 63a. In an alternative embodiment, it is also possible that the bottom end cap 30a is provided without an extension at one end, and that the end of the first portion end 30a is held or abutted directly 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 higher heat of the distal end of the heater 31 can be conducted to the housing along the tubular body 30b, the fixing arm 30c, and can also be conducted to the housing again along the extension of the bottom end cap 30a, the bracket 63, the heat insulator 40; whichever heat conduction path is greater than the distance between the outer side wall of the bottom end cover 30a and the inner side wall of the heat insulation piece 40, the problem that the temperature of the shell is too high due to the fact that the far end of the heater 31 is directly and radially heat-conducted to the shell is avoided, and the use experience of a user is improved.

Fig. 10-14 are schematic views of an aerosol-generating device and its components provided by yet another embodiment of the present application.

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

In contrast to the example of fig. 1-8, the outer surface of the holder 30 is further provided with a groove 30e for accommodating a first electrical connector (not shown). A 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 shield 40. Specifically, one end of the second electrical connector is in contact with the other end of the first electrical connector (arranged on the bottom end cover 30 a) to form an electrical connection, and the other end of the second electrical connector passes through a through hole on the partition plate 63a of the bracket 63 and then is electrically connected with the battery cell 62. In alternative examples, the thermal shield 40 itself may be made of an electrically conductive material; in this way, the upper end of the thermal insulator 40 is in contact with the other end of the first electrical connector (arranged on the bottom end cap 30 a) to form an electrical connection, and the lower end of the thermal insulator 40 passes through the through hole of the partition 63a of the bracket 63 and then is electrically connected to the battery cell 62. The first electrical connector and the second electrical connector may each be provided with protruding electrical contacts so as to be held in contact with each other to form an electrical connection.

Unlike the examples of fig. 1-8, the holder 30 is further provided with a through hole 30f on the sidewall, the extractor 20 is provided with a protrusion 20a on the outer sidewall, and the upper case 10 is provided with a magnetic member 10a; the upper end of the extractor 20 is fixed to the upper casing 10 at a portion protruding radially outward. After assembly, the projection 20a is snapped into the through hole 30 f. Initially, the holder 30 is retained within the aerosol-generating device 100 due to the magnetic attraction between the magnetic element 10a and the electrical connection. When the user pulls the upper housing 10 upward, the upper housing 10 drives the extractor 20 to move upward, and the protrusion 20a moves upward in the through hole 30 f; as the tab 20a moves to the upper end of the through-hole 30f, the tab 20a is trapped, and the aerosol-generating article 200 is disengaged from the heater 31 (or part of the heater 31 is still within the aerosol-generating article 200), and the first and second electrical connections are also in a disengaged contact state. As the upper housing 10 continues to be pulled upwardly, the retainer 30 (except for the extension arm 30 d) is removable from the aerosol-generating device 100 along 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 fixing arm 30c, and the extension arm 30d of the holder 30 are formed separately; alternatively, the tubular body 30b and the fixing arm 30c are integrally formed, the bottom end cap 30a and the tubular body 30b are separated, and the extension arm 30d and the fixing arm 30c are separated.

Figures 15-17 are schematic views of an aerosol-generating device and its components provided in accordance with a further embodiment of the present application.

Unlike the example of fig. 1-8, the bottom end cap 30a, the tubular body 30b and the fixing arm 30c of the holder 30 are integrally formed, and can be fixed or integrally formed by a process such as in-mold molding, two-color molding or bonding; the holder 30 is not provided with the extension arm 30d. The holder 30 and 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.

In particular, the bottom end-cap 30a comprises a seat body, an extension extending radially from the seat body towards the outside of the aerosol-generating device 100 (or the outer side wall of the bottom end-cap 30 a). The base has an upper open end, a lower open end opposite the upper open end, and a fixation hole extending from the upper open end to the lower open end. The fixing hole matches the shape of the distal end of the heater 31, the outer side wall of the heater 31 near the distal end abuts the inner wall of the fixing hole, and the distal end of the heater 31 may be received in the fixing hole or extend out of the lower open end.

The tubular body 30b is configured as a tube surrounding at least part of the chamber a and extending in the longitudinal or axial direction of the chamber a, and the bottom end cap 30a is further provided with a first step on the outer side wall. Part of the bottom end cap 30a extends into the tubular body 30b, the lower end of the tubular body 30b abuts on the first step, and the inner wall of the tubular body 30b close to the lower end thereof contacts with the outer side wall of the bottom end cap 30 a; part of the fixing arm 30c extends into the tubular body 30b, the upper end of the tubular body 30b abuts against the 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 contacts the outer side wall of the fixing arm 30c. It is also possible, as can be easily imagined, that the upper end of the tubular body 30b extends into the fixing arm 30c, and that the inner wall of the fixing arm 30c is provided with a step; similarly, the lower end of the tubular body 30b and the bottom end cap 30a are also feasible. In other examples, the bottom end cap 30a may be provided with a groove in which the lower end of the tubular body 30b may snap; the fixing arm 30c is similar thereto.

Figure 18 is an enlarged partial schematic view in cross-section of an aerosol-generating device according to a further embodiment of the present application.

Unlike the examples of figures 1-8, the heater 31 is configured to heat around or wrap around at least part of the aerosol-generating article 200, a so-called circumferential or peripheral heating regime being common. The heating method used by the heater 31 is not limited, and for example, resistance heating, electromagnetic induction heating, infrared radiation heating, and the like can be applied. The shape of the heater 31 is also not limiting, and may for example be configured as a tubular structure surrounding at least part of the aerosol-generating article 200 and extending in an axial direction, and may for example be sheet-like, semi-cylindrical, etc.

In the air heating mode described above, heated air may enter the bottom end of the aerosol-generating article 200 to heat the aerosol-generating article 200; and/or the heat of the hot air is transferred through the highly thermally conductive material to the side walls of the aerosol-generating article 200, thereby heating the aerosol-generating article 200. The air may be heated by, but not limited to, resistance heating, electromagnetic induction heating, infrared radiation heating, and the like.

Unlike the example 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 abuts 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 cap 30a is suspended on the partition 63a, that is, a gap is formed between the bottom end cap 30a and the partition 63a at an interval, and there is no heat conduction path for the solid medium; the bottom end cap 30a and the tubular body 30b are both spaced from the body 40a of the thermal insulator 40 in the transverse direction of the aerosol-generating device 100 to form a gap, and there is no thermal conduction path for the solid media. Thus, the heater 31 conducts heat of a relatively high or large portion along the tubular body 30b, the fixing arm 30c, and to the upper housing 10; this heat conduction path is the distance that is greater than far away between the inside wall of siphonozooid 30b and heat insulating part 40, avoids the direct radial heat-conduction of the higher heat of heater 31 to the shell, leads to the too high problem of shell temperature, has promoted user's use and has experienced.

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

Unlike the example of fig. 1 to 8, the heater 31 includes an air heating section 31a and a heat conduction section 31b. The air heating section 31a heats incoming air (shown by the dotted arrows) which may bake the aerosol-generating article 200; the heat conduction section 31b is made of a high heat conduction material, and the heat conduction section 31b is connected to the air heating section 31 a; the heat conducting portion 31b heats up and transfers heat to the outer peripheral wall of the aerosol-generating article 200, thereby baking the aerosol-generating article 200.

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

It should be noted that the description of the present application and the accompanying drawings set forth preferred embodiments of the present application, however, the present application may be embodied in many different forms and is not limited to the embodiments described in the present application, which are not intended as additional limitations to the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. Moreover, the above-mentioned technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope described in the present specification; further, modifications and variations may occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the scope of 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; it is characterized in that the shell is internally provided with:

a holder including a tubular body configured to hold the heater; the tubular body comprises a first end close to the insertion opening, and a second end opposite to the first end;

wherein the first end is retained within the housing and the second end is disposed within the housing in suspension.

2. An 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 retained at the second end; wherein

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

The heater is in contact with the tubular body by a fixing member.

4. An aerosol-generating device according to any of claims 1 to 3, further comprising a support;

the holding piece 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 fixing arm is held on the support portion.

5. An aerosol-generating device according to any of claims 1 to 3, further comprising a support;

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

the fixing arm, the extension arm and the tubular body form a hanging structure so that the holder is hung on the support portion.

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 arm is formed from a different material to the tubular body, wherein the tubular body is formed from a material having a higher resistance to high temperatures than the elongate arm.

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 at the second end with a fixing hole of the heater for inserting and fixing a distal end of the heater.

9. An aerosol-generating device according to claim 4 or 7, wherein the heater is configured to wrap the aerosol-generating article; the holder further comprises a bottom end cap that seals the second end of the tubular body and secures the heater so that it is retained inside the tubular body.

10. An aerosol-generating device according to claim 4 or 5, further comprising a thermal insulator, one end of which is configured as the support; or,

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

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

An insulating 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 corresponding shield covering the through-hole.

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

14. An aerosol-generating device according to claim 1, further comprising a baffle and a cell disposed between the baffle and a base end of the aerosol-generating device, the second end being disposed above the baffle in suspension.

15. An aerosol-generating device according to claim 14, wherein the baffle has a through-hole, and the heater further comprises a lead wire which passes through the through-hole and is electrically connected to the cell; or,

the separator is provided with a first electric contact point electrically connected with the battery cell, and the heater also comprises a second electric contact point; the first electrical contact point can be contacted with the second electrical contact point through the electrical connection conversion part 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; it is characterized in that:

a heater having a proximal end and a distal end; a proximal end of the heater is configured to be insertable into an aerosol-generating article received within the housing, and a 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 transverse dimension of the aerosol-generating device is between 15mm and 20mm.