WO2024087462A1

WO2024087462A1 - Power supply apparatus and aerosol generating device

Info

Publication number: WO2024087462A1
Application number: PCT/CN2023/081156
Authority: WO
Inventors: 徐文凯
Original assignee: 爱奇迹(香港)有限公司
Priority date: 2022-10-24
Filing date: 2023-03-13
Publication date: 2024-05-02
Also published as: CN218898322U

Abstract

A power supply apparatus (11) and an aerosol generating device (10). The power supply apparatus (11) is used for supplying power to an atomization apparatus (12), and comprises a tube body (100), a battery component (200), and a fixing assembly (300). The battery component (200) is provided in the tube body (100); and the fixing assembly (300) is positioned between and elastically abuts against an outer circumferential surface of the battery component (200) and an inner circumferential surface of the tube body (100), and is used for fixing the battery component (200) in the tube body (100). When a gap exists between the battery component (200) and the tube body (100) and the distance therebetween is uncertain, the fixing assembly (300) may deform to a certain extent so as to adaptively abut against the battery component (200) and the tube body (100) to fill the gap, thereby implementing the assembly of battery components (200) of different sizes and the tube body (100).

Description

Power supply device and aerosol generating device

Technical Field

The utility model relates to the technical field of electronic cigarettes, in particular to a power supply device and an aerosol generating device.

Background technique

The smoke from burning cigarettes contains harmful substances such as tar, which can cause great harm to the human body if inhaled for a long time. In order to overcome the harmful substances produced by burning cigarettes, low-harm cigarette substitutes such as e-cigarettes with e-liquid and heat-not-burn e-cigarettes have emerged.

Traditional electronic cigarettes are equipped with batteries for energy supply. However, the inner diameter of the cigarette rod of the traditional electronic cigarette needs to match the outer diameter of the battery inside, that is, cigarette rods and battery components of different sizes cannot be matched and assembled.

Utility Model Content

Based on this, it is necessary to provide a power supply device and an aerosol generating device to adapt to the assembly of cigarette rods and battery assemblies of different sizes.

A power supply device for supplying power to an atomizing device of an aerosol generating device, the power supply device comprising:

Tube body;

A battery assembly is disposed in the tube;

The fixing assembly is elastically supported between the outer peripheral surface of the battery assembly and the inner peripheral surface of the tube body, and is used for fixing the battery assembly in the tube body.

The above-mentioned power supply device can be used in an aerosol generating device, and the atomizing chamber of the atomizing device can generate an aerosol for the user to inhale. When the size of the tube body and the battery assembly are not completely matched, that is, when the outer contour of the cross section of the battery assembly is smaller than the inner contour of the cross section of the tube body, if the battery assembly is directly loaded into the tube body, there will inevitably be a gap between the two, that is, the connection reliability between the battery assembly and the tube body is limited, and the battery assembly may shake or even be damaged. In response to this, the present application adds a fixed component, and the fixed component elastically abuts between the outer circumference of the battery assembly and the inner circumference of the tube body, which means that when there is a gap between the battery assembly and the tube body and the spacing is uncertain, the fixed component can have a certain amount of deformation to adaptively abut between the battery assembly and the tube body to make up for the gap. In other words, the setting of the fixed component realizes the assembly of battery assemblies of different sizes and tube bodies, which greatly increases the compatibility between the two.

In one embodiment, the fixing assembly includes a spring sheet and a sleeve, the sleeve is sleeved on the outer circumference of the battery assembly, one end of the spring sheet is connected to the sleeve, and the other end of the spring sheet is elastically supported on the inner circumference of the tube.

In one embodiment, the sleeve is an elastic sleeve and the cross-sectional profile is an open ring. The sleeve of the fixed component is elastic and can have a certain amount of deformation, and the cross-sectional profile of the sleeve is an open ring. The open end of the sleeve can be aligned with the outer peripheral surface of the battery assembly and sleeved thereon, which makes assembly more convenient. From the perspective of environmental recycling, when the relevant equipment is recycled and disassembled, the sleeve has an open end, which makes it easier to remove the sleeve from the battery assembly, that is, disassembly is also very convenient.

In one embodiment, the cross-sectional profile of the sleeve is in the shape of a closed loop. Such a structural arrangement allows the sleeve to have a larger contact area with the battery assembly, thereby increasing the friction between the two and improving the connection reliability.

In one embodiment, the spring sheets are provided in plurality, and the plurality of spring sheets are arranged at intervals along the circumference of the sleeve. Such a structural arrangement can support the battery assembly from multiple angles at the same time along the circumference of the battery assembly, and can also improve the connection reliability.

In one embodiment, the length extension direction of the spring sheet is set at an acute angle to the axial direction of the sleeve. Such a structural setting means that when assembling, if the sleeve of the fixing assembly is sleeved onto the battery assembly, and then the battery assembly and the fixing assembly are installed into the tube body, it is only necessary to select a suitable direction for installation so that the side of the spring sheet facing away from the sleeve body first contacts the tube wall of the tube body. Since the spring sheet and the outer peripheral surface of the sleeve body are inclined, it is conducive to the spring sheet to slide smoothly into the tube body, which is convenient for assembly.

In one of the embodiments, one end of the elastic sheet is connected to the outer peripheral surface of the sleeve body, and the elastic sheet is configured to be able to elastically expand and contract along the radial direction of the sleeve body under the action of an external force.

In one embodiment, the elastic sheet is integrally formed with the sleeve body. For example, during manufacturing, the sleeve body can be manufactured first, and then a part of the sleeve body structure can be directly formed into the elastic sheet by a stamping process.

In one embodiment, the fixing assembly includes an elastic tube sleeved on the outer circumference of the battery assembly, and the elastic tube is elastically supported between the outer circumference of the battery assembly and the inner circumference of the tube body. In this embodiment, during assembly, the elastic tube can be directly squeezed between the outer circumference of the battery assembly and the inner circumference of the tube body, and since the elastic tube itself has a certain amount of deformation, the elastic tube can adapt to the gap between the battery assembly and the tube body.

In one embodiment, the cross-sectional profile of the elastic tube is an open ring. Since the cross-sectional profile of the elastic tube is an open ring, the open end of the elastic tube can be aligned with the outer peripheral surface of the battery assembly and sleeved thereon, which makes assembly more convenient. From the perspective of environmental recycling, when the relevant equipment is recycled and disassembled in parts, the open end of the elastic tube also makes it easy to remove the elastic tube from the battery assembly, that is, disassembly is also very convenient.

In one embodiment, the cross-sectional profile of the elastic tube is in the shape of a closed loop. Such a structural arrangement allows the elastic tube to have a larger contact area with the battery assembly, thereby increasing the friction between the two and improving the connection reliability.

In one embodiment, the wall thickness of the elastic tube is greater than the outer peripheral wall thickness of the battery assembly. Such an arrangement can ensure that the elastic tube is squeezed when connected between the battery assembly and the tube body.

In one embodiment, the elastic tube is an elastic plastic sleeve or a silicone sleeve.

The present application also relates to an aerosol generating device, which includes an atomizing device and a power supply device as described in any of the above embodiments, wherein the power supply device is electrically connected to the atomizing device. The aerosol generating device can be a split electronic cigarette, that is, the atomizing device can refer to a cigarette cartridge, and the power supply device can refer to a cigarette rod with a power supply. For users, the atomizing device and the power supply device can be easily disassembled and replaced. The aerosol generating device can also be considered as an integrated electronic cigarette, that is, a disposable electronic cigarette, in which case the atomizing device is built into the tube body.

The above-mentioned aerosol generating device may be provided with the power supply device described in the above-mentioned embodiments, and therefore, it also includes at least the following beneficial effects: when the size of the tube body and the battery assembly are not completely matched, that is, when the outer contour of the cross section of the battery assembly is smaller than the inner contour of the cross section of the tube body, if the battery assembly is directly installed into the tube body, there will inevitably be a gap between the two, that is, the connection reliability between the battery assembly and the tube body is limited, and the battery assembly may shake or even be damaged. In response to this, the present application adds a fixed component, and the fixed component elastically abuts between the outer circumference of the battery assembly and the inner circumference of the tube body, which means that when there is a gap between the battery assembly and the tube body and the spacing is uncertain, the fixed component can have a certain amount of deformation to adaptively abut between the battery assembly and the tube body to make up for the gap. In other words, the setting of the fixed component enables the assembly of battery assemblies of different sizes and tube bodies, greatly increasing the compatibility between the two.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology description. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, it is not necessary to pay attention to the drawings. On the premise of creative work, other drawings can be obtained based on these drawings.

FIG1 is a structural perspective view of an aerosol generating device provided by one embodiment of the utility model;

FIG2 is a cross-sectional view of an aerosol generating device provided by one embodiment of the utility model;

FIG3 is a partial cross-sectional view of a power supply device provided by the first embodiment of the utility model;

FIG4 is an exploded schematic diagram of a tube body, a battery assembly and a fixing assembly provided in the first embodiment of the present utility model;

FIG5 is an exploded schematic diagram of a battery assembly and a fixing assembly provided in the first embodiment of the utility model;

FIG6 is a partial three-dimensional cross-sectional view of a power supply device provided by the second embodiment of the utility model;

FIG7 is an exploded schematic diagram of a tube body, a battery assembly and a fixing assembly provided in the second embodiment of the present utility model;

FIG8 is another exploded schematic diagram of the tube body, battery assembly and fixing assembly provided by the second embodiment of the present invention.

Reference numerals:

10. Aerosol generating device; 11. Power supply device; 100. Tube body; 200. Battery assembly; 300. Fixing assembly; 310. Shrapnel; 320. Sleeve body; 330. Elastic tube; 340. Open end; 12. Atomizing device; a. Sharp angle.

Detailed ways

In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described here, and those skilled in the art can implement the utility model without violating the connotation of the utility model. Similar improvements are made, so the utility model is not limited by the specific embodiments disclosed below.

Please refer to Figures 1 and 2. The present application provides a power supply device 11 for supplying power to an atomizing device 12 of an aerosol generating device 10. The atomizing device 12 is used to atomize an atomizing medium to generate an aerosol. As shown in Figures 2, 3 and 4, the power supply device 11 includes a tube body 100, a battery assembly 200 and a fixing assembly 300. The battery assembly 200 is disposed in the tube body 100, and the fixing assembly 300 is elastically supported between the outer circumferential surface of the battery assembly 200 and the inner circumferential surface of the tube body 100, and is used to fix the battery assembly 200 in the tube body 100.

As shown in FIG2 , when the sizes of the tube body 100 and the battery assembly 200 are not completely matched, that is, the outer contour of the cross section of the battery assembly 200 is smaller than the inner contour of the cross section of the tube body 100, if the battery assembly 200 is directly loaded into the tube body 100, there will inevitably be a gap between the two, that is, the connection reliability between the battery assembly 200 and the tube body 100 is limited, and the battery assembly 200 may shake or even be damaged. In view of this, as shown in FIG3 and FIG6 , the present application adds a fixing assembly 300, and the fixing assembly 300 elastically abuts between the outer circumference of the battery assembly 200 and the inner circumference of the tube body 100, which means that when there is a gap between the battery assembly 200 and the tube body 100 and the spacing is uncertain, the fixing assembly 300 can have a certain amount of deformation to adaptively abut between the battery assembly 200 and the tube body 100 to make up for the gap. In other words, the setting of the fixing assembly 300 realizes the assembly of battery assemblies 200 and the tube body 100 of different sizes, which greatly increases the compatibility of the two.

Please refer to Figures 3, 4 and 5. In the first embodiment, the fixing component 300 includes a spring piece 310 and a sleeve 320. The sleeve 320 is sleeved on the outer circumference of the battery assembly 200. One end of the spring piece 310 is connected to the outer circumference of the sleeve 320, and the other end of the spring piece 310 is elastically supported on the inner circumference of the tube body 100. The spring piece 310 is configured to be able to elastically expand and contract along the radial direction of the sleeve 320 under the action of external force.

Specifically, as shown in FIG. 4 and FIG. 5 , in some first-class embodiments, the sleeve 320 is an elastic sleeve and the cross-sectional profile may be an open ring. The sleeve 320 has a certain amount of deformation, and the cross-sectional profile of the sleeve 320 is an open ring. The open end 340 of the sleeve 320 can be aligned with the outer peripheral surface of the battery assembly 200 and sleeved thereon, which makes assembly more convenient. From the perspective of environmental recycling, when the relevant equipment is recycled and disassembled, the sleeve 320 has an open end 340, which also makes it easy to remove the sleeve 320 from the battery assembly 200, that is, disassembly is also very convenient.

In other first-class embodiments, the cross-sectional profile of the sleeve 320 can also be in the shape of a closed loop (not shown). Such a structural arrangement allows the sleeve 320 to have more contact area with the battery assembly 200, increases the friction between the two, and helps to improve the connection reliability. It should be noted that when the cross-sectional profile of the sleeve 320 is in the shape of a closed loop, as shown in FIG3 , since the shrapnel 310 abuts between the sleeve 320 and the tube body 100, a small gap can still exist between the outer circumference of the sleeve 320 and the inner circumference of the tube body 100. In this case, if the aerosol generating device 10 of the present application is an electronic cigarette and air is taken in from the tube body 100, the airflow can flow through the gap between the outer circumference of the sleeve 320 and the inner circumference of the tube body 100 to avoid affecting the balance between air permeability and inhalation resistance.

More specifically, as shown in FIG4 and FIG5, in some first-type embodiments, a plurality of spring sheets 310 are provided, and the plurality of spring sheets 310 are arranged at intervals along the circumference of the sleeve 320. Such a structural arrangement can simultaneously support the battery assembly 200 from multiple angles along the circumference of the battery assembly 200, and can also improve the connection reliability.

More specifically, as shown in FIG. 3 and FIG. 4 , in some first-class embodiments, the length extension direction of the spring piece 310 is set at an acute angle a to the axial direction of the sleeve 320. Such a structural setting means that during assembly, if the sleeve 320 of the fixing assembly 300 is sleeved onto the battery assembly 200, and then the battery assembly 200 and the fixing assembly 300 are installed into the tube body 100 together, it is only necessary to select a suitable direction for installation so that the side of the spring piece 310 facing away from the sleeve 320 first contacts the tube wall of the tube body 100. Since the outer peripheral surfaces of the spring piece 310 and the sleeve 320 are inclined, it is conducive to the spring piece 310 to slide smoothly into the interior of the tube body 100, which is convenient for assembly.

In some first-class embodiments, the spring piece 310 and the sleeve body 320 are integrally formed. When the sleeve 320 body is manufactured, the sleeve 320 body can be manufactured first, and then a stamping process is used to directly form a part of the sleeve 320 structure into the spring piece 310. In other first-type implementations, the spring piece 310 and the sleeve 320 can also be manufactured separately, and then connected by welding, bonding, etc.

Please refer to Figures 6, 7 and 8. In the second embodiment, the fixing assembly 300 includes an elastic tube 330 sleeved on the outer circumference of the battery assembly 200, and the elastic tube 330 elastically abuts between the outer circumference of the battery assembly 200 and the inner circumference of the tube body 100. Among them, the elastic tube 330 is an elastic plastic sleeve or a silicone sleeve. The tube wall thickness of the elastic tube 330 can be greater than the radial distance between the outer circumference of the battery assembly 200 and the inner circumference of the tube body 100. Such a setting can ensure that the elastic tube 330 is squeezed when connected between the battery assembly 200 and the tube body 100. During assembly, the elastic tube 330 can be directly squeezed between the outer circumference of the battery assembly 200 and the inner circumference of the tube body 100. Since the elastic tube 330 itself has a certain amount of deformation, the elastic tube 330 can adapt to the gap between the battery assembly 200 and the tube body 100.

Specifically, as shown in FIG. 7 and FIG. 8 , in some second-type embodiments, the cross-sectional profile of the elastic tube 330 may be in the shape of an open ring. Since the cross-sectional profile of the elastic tube 330 is in the shape of an open ring, the open end 340 of the elastic tube 330 may be aligned with the outer peripheral surface of the battery assembly 200 and sleeved thereon, making assembly more convenient. From the perspective of environmental recycling, when the relevant equipment is recycled and disassembled in parts, the elastic tube 330 having the open end 340 also facilitates the removal of the elastic tube 330 from the battery assembly 200, that is, disassembly is also very convenient.

In other second-type embodiments, the cross-sectional profile of the elastic tube 330 may also be in the shape of a closed loop (not shown). Such a structural arrangement allows the elastic tube 330 to have a larger contact area with the battery assembly 200, thereby increasing the friction between the two and improving the connection reliability. It should be noted that when the cross-sectional profile of the elastic tube 330 is in the shape of a closed loop, if the aerosol generating device 10 of the present application is an electronic cigarette and air is taken in from the tube body 100, in order to ensure that the airflow can be passed through the outer circumference of the sleeve body 320 and the inner side of the tube body 100, the elastic tube 330 may be in the shape of a closed loop. The elastic tube 330 can be made of a porous material with elasticity to avoid affecting the balance between air permeability and suction resistance.

In addition, as shown in FIG. 1 and FIG. 2 , the present application also relates to an aerosol generating device 10 , which includes an atomizing device 12 and a power supply device 11 as described in any of the above embodiments, and the power supply device 11 is electrically connected to the atomizing device 12 .

Among them, in some embodiments, the aerosol generating device 10 can be considered as an integrated electronic cigarette, that is, a disposable electronic cigarette, and the atomizer 12 is built into the tube body 100. For example, as shown in Figures 2 and 4, in some embodiments, the atomizer 12 can be connected to one end of the tube body 100 by bonding, ultrasonic welding, interference fit, etc. For example, in other embodiments, the shell of the atomizer 12 can be integrally formed with the tube body 100, that is, the atomizer core is built into the tube body 100. It should be noted that the fixing method of the atomizer 12 and the tube body 100 listed here in this application is not a specific limitation on the connection method between the two, and it is intended to indicate that the connection method between the atomizer 12 and the tube body 100 is not removable for the user.

In another embodiment, the aerosol generating device 10 may also be a split-type electronic cigarette, that is, the atomizing device 12 may refer to a cigarette cartridge, and the power supply device 11 may refer to a cigarette rod with a power supply. For users, the atomizing device 12 and the power supply device 11 may be easily disassembled and assembled, and the atomizing device 12 may be replaced.

The above-mentioned aerosol generating device 10 may be provided with the power supply device 11 of each of the above-mentioned embodiments, and therefore, also includes at least the following beneficial effects: when the dimensions of the tube body 100 and the battery assembly 200 are not completely matched, that is, when the outer contour of the cross section of the battery assembly 200 is smaller than the inner contour of the cross section of the tube body 100, if the battery assembly 200 is directly installed in the tube body 100, there will inevitably be a gap between the two, that is, the connection reliability between the battery assembly 200 and the tube body 100 is limited, and the battery assembly 200 may shake or even be damaged. In view of this, the present application adds a fixing assembly 300, which is elastically supported between the outer circumference of the battery assembly 200 and the inner circumference of the tube body 100, which means that when the battery assembly 200 and the tube body 100 are connected, the fixing assembly 300 is not in contact with the tube body 100. When there is a gap between the two and the spacing is uncertain, the fixing assembly 300 can have a certain deformation amount to adaptively hold between the battery assembly 200 and the tube body 100 to fill the gap. In other words, the setting of the fixing assembly 300 enables the assembly of battery assemblies 200 and the tube body 100 of different sizes, greatly increasing the compatibility of the two.

The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

In the description of the present invention, it should be understood that the terms "axial", "radial", "circumferential", "length", "width", "thickness", "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly specified. limited.

In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

It should be noted that when an element is referred to as being "located on", "fixed on" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

In the description of this specification, the description of reference terms such as "an embodiment", "other implementation methods", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical descriptions used in this document are Technical and scientific terms have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

Claims

A power supply device for supplying power to an atomizing device of an aerosol generating device, characterized by comprising:

Tube body;

A battery assembly is disposed in the tube;

The fixing assembly is elastically supported between the outer peripheral surface of the battery assembly and the inner peripheral surface of the tube body, and is used for fixing the battery assembly in the tube body.
The power supply device according to claim 1 is characterized in that the fixing assembly includes a spring sheet and a sleeve, the sleeve is sleeved on the outer circumference of the battery assembly, one end of the spring sheet is connected to the sleeve, and the other end of the spring sheet is elastically supported on the inner circumference of the tube body.
The power supply device according to claim 2 is characterized in that the sleeve is an elastic sleeve and has an open ring cross-sectional profile.
The power supply device according to claim 2 is characterized in that the cross-sectional profile of the sleeve is in the shape of a closed loop.
The power supply device according to claim 2 is characterized in that the spring sheet is provided in plurality, and the plurality of spring sheets are arranged at intervals along the circumference of the sleeve.
The power supply device according to claim 2 is characterized in that it also includes at least one of the following technical features:

One end of the spring piece is connected to the outer peripheral surface of the sleeve body;

The length extension direction of the spring sheet is arranged at an acute angle to the axial direction of the sleeve body;

The spring sheet is configured to be able to elastically expand and contract along the radial direction of the sleeve under the action of an external force;

The spring piece and the sleeve body are integrally formed.
The power supply device according to claim 1 is characterized in that the fixing assembly comprises an elastic tube sleeved on the outer peripheral surface of the battery assembly, and the elastic tube elastically abuts against the outer peripheral surface of the battery assembly. Between the outer peripheral surface and the inner peripheral surface of the tube body.
The power supply device according to claim 7 is characterized by further comprising at least one of the following technical features:

The cross-sectional profile of the elastic tube is in the shape of an open ring;

The cross-sectional profile of the elastic tube is in the shape of a closed loop;

The thickness of the wall of the elastic tube is greater than the distance between the outer circumference of the battery assembly and the inner circumference of the tube body;

The elastic tube is an elastic plastic sleeve or a silicone sleeve.
An aerosol generating device, characterized in that it comprises an atomizing device and a power supply device as described in any one of claims 1 to 8, wherein the power supply device is electrically connected to the atomizing device.
The aerosol generating device according to claim 9, characterized in that the aerosol generating device is a disposable electronic cigarette.