CN217184807U - Atomizer, atomizing core unit and aerosol generating device - Google Patents

Abstract

An atomizer comprising a housing, a portion of the housing defining a reservoir chamber for storing a liquid substrate; an atomizing assembly for atomizing a liquid substrate to produce an aerosol; a sleeve having a hollow cavity, at least a portion of the cavity for receiving the atomizing assembly; the fixed seat is connected to one end of the sleeve and used for supporting the atomization assembly; the fixing seat comprises a first section and a second section which are connected, the first section is located in the inner cavity of the sleeve, the second section is located outside the cavity of the sleeve, and the outer diameter of the second section is larger than that of the end portion of the sleeve. The second section of the fixing seat in the atomizer is arranged in a protruding mode relative to the sleeve, so that interference positioning can be formed between the end portion of the fixing seat and other supporting components inside the shell, and overall assembling of the atomizer is facilitated.

Description

Atomizer, atomizing core unit and aerosol generating device

Technical Field

The embodiment of the application relates to the field of aerosol generating devices, in particular to an atomizing core unit, an atomizer and an aerosol generating device.

Background

The aerosol generating device mainly depends on an atomizing core unit inside the aerosol generating device to atomize the liquid substrate to generate the aerosol, and the tubular atomizing core unit is more applied to a small aerosol generating device.

In the prior art, in order to realize the automatic assembly of the atomizing core unit, the upper sleeve is set to have a structure with an assembly opening, the liquid guide element is wound and fixed on the periphery of the heating element, and the conductive leads connected with the two ends of the heating element are led out from the two sides of the fixing seat. However, in the process of assembling the atomization core unit and other components, the overall size is small and the atomization core unit is tubular, so that interference positioning is difficult to perform, and the overall assembly of the atomizer is affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of difficulty in assembling a tubular atomizing core unit in the atomizer in the prior art, the embodiment of the application provides an atomizer, which comprises a shell, a liquid storage cavity and a liquid substrate storage cavity, wherein the shell is internally defined with the liquid storage cavity; an atomizing assembly for atomizing a liquid substrate to produce an aerosol; a sleeve having a hollow cavity, at least a portion of the cavity for receiving the atomizing assembly; the fixed seat is connected to one end of the sleeve and used for supporting the atomization assembly; the fixing seat comprises a first section and a second section which are connected, the first section is contained in the cavity of the sleeve, the second section is positioned outside the sleeve, and the outer diameter of the second section is larger than that of the end part of the sleeve.

In some embodiments, the atomizer further comprises a first sealing seat for sealing the liquid storage cavity, the first sealing seat is provided with a groove, and the second section of the fixing seat is fixed inside the groove.

In some embodiments, a receiving cavity is disposed within the first seal seat, the receiving cavity configured to receive at least a portion of the cannula, and the recess is formed by the receiving cavity being recessed inwardly.

In some embodiments, a hollow inner tube is disposed inside the housing, the first sealing seat is connected to one end of the inner tube, a second sealing seat is disposed at the other end of the inner tube, and the sleeve extends longitudinally to abut against the second sealing seat.

In some embodiments, an opening is provided in the sidewall of the sleeve, the opening extending longitudinally from the open end of the sleeve and terminating in the sidewall of the sleeve; the atomization assembly comprises a heating element and a liquid guide element arranged to surround the heating element.

In some embodiments, the liquid directing element includes a boss secured to the opening.

In some embodiments, the liquid directing element includes a boss at least partially received in the opening and a terminal end of the opening is configured to provide a longitudinal stop for the boss.

In some embodiments, the drainage element comprises a protrusion configured to extend from the opening from the interior of the cannula into the reservoir cavity.

In some embodiments, the atomizing assembly includes a heating element and leads connected to both ends of the heating element, and at least a portion of the holder defines two lead slots through which the leads pass.

In some embodiments, the lead groove is disposed on the outer wall of the fixing seat, two first notches are disposed at the top end of the first section of the fixing seat, and the lead groove longitudinally extends to be communicated with the first notches.

In some embodiments, two second notches are provided on the second section of the holder, a portion of the lead is clamped between the sleeve and the holder, and another portion of the lead is led out from the second notches.

The embodiment of the application also provides an atomizing core unit, which comprises a sleeve, wherein the sleeve is provided with a hollow cavity, and the side wall of the sleeve is provided with a longitudinally extending opening; the atomization assembly is accommodated in the cavity of the sleeve; the atomization assembly includes a heating element and a liquid-conducting element surrounding the heating element, the liquid-conducting element including a projection that is extendable from the opening from inside the cavity to outside the sleeve; the fixed seat is connected to one end of the sleeve and used for supporting the atomization assembly; the fixing seat comprises a first section and a second section which are connected, the first section is contained in the cavity of the sleeve, the second section is positioned outside the sleeve, and the outer diameter of the second section is larger than that of the end part of the sleeve.

Embodiments of the present application further provide an aerosol-generating device, including the above-mentioned atomizer and for the power supply module that the atomizer provides electric drive.

The beneficial effects of this application are that, atomizing core unit is including the sleeve pipe that is used for acceping atomization component, and be used for supporting sleeve pipe and atomization component's fixing base, wherein the fixing base configuration is two sections, and first section sets up and is used for supporting atomization component in sheathed tube inner chamber, and the second section sets up in the outside of sheathed tube cavity, and the external diameter of the second section of fixing base is greater than sheathed tube external diameter, therefore the second section of fixing base sets up for the sleeve pipe protrusion, make atomizing core unit's tip can with form between the inside other supporting component of casing and interfere the location, thereby be favorable to the holistic equipment of atomizer.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Figure 1 is a perspective view of an aerosol-generating device provided by an embodiment of the present application;

fig. 2 is an exploded view of an atomizing core unit provided in an embodiment of the present application;

FIG. 3 is a cross-sectional view from one perspective of an atomizing core unit provided in accordance with an embodiment of the present application;

FIG. 4 is a cross-sectional view from another perspective of an atomizing core unit as provided by an embodiment of the present application;

fig. 5 is a perspective view of a fixing base provided in an embodiment of the present application;

FIG. 6 is a cross-sectional view of a first seal retainer provided in accordance with an embodiment of the present application;

figure 7 is a cross-sectional view of an aerosol-generating device provided by an embodiment of the present application;

figure 8 is an exploded view of an aerosol-generating device provided by embodiments 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 accompanying drawings and detailed description.

It should be noted that all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) in the embodiments of the present application are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly, the "connection" may be a direct connection or an indirect connection, and the "setting", and "setting" may be directly or indirectly set.

In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The embodiment of the application provides an aerosol generating device, which is configured to be driven by electricity and comprises a power supply assembly and an atomizer, wherein the core part of the atomizer is an atomizing core unit, and the aerosol generating device mainly depends on the atomizing core unit inside the atomizer to atomize a liquid substrate stored in the atomizing core unit to generate aerosol. Aerosol-generating devices include two broad categories, electronic cigarettes and medical-based nebulizing devices, depending on the type of liquid substrate stored inside the aerosol-generating device. The liquid matrix stored in the electronic cigarette mainly comprises one or more of glycerin, propylene glycol, nicotine preparation, essence, spice, flavor additive and the like. The liquid medium stored inside the atomizer for medical use mainly comprises glycerin, propylene glycol, pharmaceutically functional active ingredients such as herbal extracts. It should be noted that the embodiments of the aerosol-generating device provided in the present application can be applied to both types of aerosol-generating devices.

Aerosol-generating devices according to their combined structure comprise an integrated aerosol-generating device, as well as a separate aerosol-generating device. Integrated aerosol-generating devices, in which the atomiser and power supply assembly are integrated into a single unit, are small and can store from 2ml to 20ml of liquid substrate, may be referred to as disposable aerosol-generating devices, for example, as suitable disposable aerosol-generating devices, may contain 2ml, 6ml or 12ml of liquid substrate. The life of the aerosol-generating device is cut off when the user has consumed the liquid substrate stored within. The power supply assembly of the disposable aerosol-generating device may be provided in the form of a battery pack that may or may not be rechargeable, depending on the number of ports that it can use. As a separate aerosol generating device, the atomizer and power supply are configured to be detachably combined, and when the liquid medium stored in the atomizer is used, the user can combine the new atomizer with the power supply, wherein the power supply is configured to be rechargeable. For such aerosol-generating devices, the power supply assembly can be used in combination with a variety of nebulizers of different flavors. The related embodiments of the aerosol-generating device provided herein are applicable to both of the above-described types of aerosol-generating devices.

For aerosol-generating devices that are generally cylindrical in overall shape, the atomizer is primarily configured with a tubular atomizing cartridge unit to facilitate the placement of the reservoir and other support components, as shown with reference to fig. 1 and 7. The tubular atomizing core unit mainly comprises an atomizing assembly and a supporting assembly, the atomizing assembly comprises a heating element and a liquid guide element, the liquid guide element preferably adopts a capillary element with liquid guide capacity, one part of the liquid guide element is in contact with the liquid substrate in the liquid storage cavity, and the other part of the liquid guide element is in contact with the heating element, so that the liquid substrate is transferred to the heating element to be atomized, and then aerosol is generated. Cellucotton has been widely used in atomizers because of its excellent liquid-conducting and liquid-retaining properties. In an atomizer using fiber cotton, a complicated manual cotton wrapping process is generally required, but the manual cotton wrapping process causes the problems that the manufactured atomizing core units have poor consistency and low production efficiency, so that the design of an atomizing core unit structure capable of realizing automatic production is desired.

In one embodiment of the present application, an atomizing core unit structure capable of realizing automated production is provided. Referring to fig. 2 to 5, the atomizing core unit includes an atomizing assembly 20, a sleeve 23, and a fixing base 24, and the atomizing assembly 20 includes a heating element 21 and a liquid guiding element 22. Wherein in a preferred embodiment, the liquid guiding element 22 comprises a plurality of layers of stacked cellucotton which are curled to form a hollow tubular structure and are received in the sleeve 23, the two free ends of the plurality of layers of cellucotton are gathered together to form a convex part 221, the convex part 221 extends from the inner side of the sleeve 23 to the outer side of the sleeve 23, so that the liquid guiding element 22 can be fixed in the sleeve 23 by means of the convex part 221, and the convex part 221 can extend into a liquid storage cavity outside the sleeve 23, thereby absorbing liquid matrix and transmitting smoke oil to the heating element 21. In the preferred embodiment, the protrusion 221 of the wicking element 22 extends into the reservoir of the nebulizer and contacts the reservoir medium in the reservoir, and the wicking element 22 can autonomously absorb the liquid matrix stored in the reservoir medium, which is advantageous for automated production of the nebulizer in that it does not require a further wrap of the wicking medium (e.g., fiber cotton) around the exterior of the sleeve 23, as compared to prior designs.

The heating element 21 is preferably made of a material with high resistance, the heating element 21 may be in the form of a heating wire, a heating sheet or a heating element with a grid structure, in the tubular atomizing core unit, the heating element 21 is curled along the longitudinal direction of the atomizing core unit as an axis, and the liquid guide element 22 is wrapped outside the heating element 21. In one example provided by the present application, the heating element 21 is made of at least one alloy with high resistivity, such as stainless steel, nickel-chromium, iron-chromium-aluminum, nickel-iron, etc., and the heating sheet has a grid structure, and can be rolled to form an unclosed tubular member. In a preferred embodiment, the grid of the heating element 21 is mainly concentrated in the middle of the heating element 21 along the longitudinal direction, the grid is configured into a hexagonal structure, and a plurality of longitudinally extending fin structures are arranged at both ends of each grid, which facilitates the heating element 21 to be tightly attached to the surface of the liquid guiding element 22 and prevents part of the grid of the heating element 21 from tilting and separating from the surface of the liquid guiding element 22.

Referring to fig. 2, the electric connector 25 is connected to both ends of the heating element 21, and the electric connector 25 includes a conductive pin 251 and a conductive lead 252, wherein the conductive lead 252 is provided with an insulating coating on an outer surface of the conductive pin 251 to facilitate the extension and fixation of the electric connector 25. In one example provided by the present application, two conductive pins 251 are welded to both sides of the heat generating sheet and extend from the top end of the heat generating sheet to the bottom end of the heat generating sheet, and at the lower end of the heat generating sheet, an electrical connector extends in the form of a conductive lead 252. The two free sides of the heat generating sheet in the rolled state are relatively close to each other, so that the two conductive leads 252 need to be bent to the outside of the heating element 21 by a certain angle and then continue to extend longitudinally.

The sleeve 23 of the atomizing core unit is configured as a hollow tubular member with two open ends, and has a cavity 233, and a part of the cavity 233 is used for accommodating the atomizing assembly 20. In a preferred embodiment, to facilitate the fixing of the atomizing assembly 20, at least one opening 232 is further provided on the side surface of the sleeve 23, the opening 232 extending to the open end of the sleeve 23, the opening 232 being substantially U-shaped. In the process of fixing the liquid guiding member 22, the projection 221 formed of a multi-layer fiber cotton structure can be inserted from the bottom end of the U-shaped opening 232 and finally abut against the terminal end of the U-shaped opening 232, thereby facilitating the fixing operation of the liquid guiding member 22. In one example, two U-shaped openings 232 are symmetrically disposed on the side of sleeve 23 to allow the bottom end of sleeve 23 to open a certain arc during the process of securing drainage element 22 to facilitate insertion of drainage element 22 therein. The side wall of the sleeve 23 is further provided with a plurality of liquid guide holes 231, the liquid matrix in the liquid storage cavity can enter the liquid guide element 22 through the liquid guide holes 231 or the U-shaped openings 232, and the protrusions 221 of the liquid guide element 22 can also directly contact with the liquid matrix and absorb the liquid matrix, so that the atomizing core unit provided by the application has sufficient liquid guide capacity to meet the requirements of the heating element 21. It can be understood that when the heating efficiency of heating element 21 is reduced, the liquid matrix accumulated on liquid guiding element 22 cannot be atomized by heating element 21 in time, and the excess liquid matrix can enter the liquid storage cavity through the protrusion 221 on liquid guiding element 22, thereby balancing the liquid guiding rate and the heating rate. In a preferred embodiment, the heating element 21 is arranged substantially longitudinally along the atomizing core unit, the longitudinal extension of the heating element 21 is within the longitudinal extension of the liquid-guiding element 22, and the heating element 21 is located substantially in the middle of the receiving cavity formed by the liquid-guiding element 22, so that the heating element 21 can atomize the liquid matrix transferred by the liquid-guiding element 22 in a balanced manner.

In a preferred embodiment, the tip of the sleeve 23 is spaced a sufficient distance from the tip of the U-shaped opening 232 that the longitudinal extent of the atomizing assembly is substantially within the longitudinal extent of the U-shaped opening 232, such that the portion of the interior cavity of the sleeve 23 above the U-shaped opening 232 forms the outlet passage for the aerosol. When the length of the air outlet channel is enough, the aerosol can enter the mouth of the suction nozzle through the air outlet channel, so that the aerosol is sucked by a user.

The atomizing core unit further comprises a fixed seat 24 for providing further supporting function for the atomizing assembly, the top end surface of the fixed seat 24 abuts against the bottom end surface of the liquid guide element 22, and the bottom end of the sleeve 23 abuts against the fixed seat 24. Specifically, the fixing base 24 is divided into a first section 241 and a second section 242 connected along the longitudinal direction thereof, wherein the first section 241 is accommodated in the inner cavity of the sleeve 23 and is in interference fit with the sleeve 23, the second section 242 of the fixing base 24 is located outside the sleeve 23, and the outer diameter of the second section 242 of the fixing base 24 is larger than the outer diameter of the sleeve 23, so that a step surface is formed between the first section 241 and the second section 242 of the fixing base 24, and the bottom end of the sleeve 23 is in longitudinal abutment with the step surface.

A through hole 243 is further provided in the interior of the holder 24, through which hole 243 external air flows into the atomization chamber, wherein the atomization chamber is defined by the sleeve 23 and the holder 24 together.

Further, the conductive leads 252 connected to both ends of the heating element 21 are extended out from the fixing base 24. In one example, the sleeve 23 is made of a metal material, the fixing base 24 is made of a hard plastic material, an interference fit relationship is set between the first section 241 of the fixing base 24 and the sleeve 23, so that a tension pressure exists between the sleeve 23 and the first section 241 of the fixing base 24, and the conductive lead 252 is clamped between the first section 241 of the fixing base 24 and the sleeve 23 and is fixed by the tension pressure between the sleeve 23 and the fixing base 24 without using glue. Specifically, two first notches 244 are provided at an end of the first section 241 of the fixing base 24, a through wire guiding groove 245 is provided on side walls of the first section 241 and the second section 242 of the fixing base 24, the wire guiding groove 245 is longitudinally communicated with the first notches 244, two second notches 246 are formed on the second section 242 of the fixing base 24 at portions of the wire guiding groove 245 extending to the second section 242 of the fixing base 24, and conductive wires 252 connected to two ends of the heating element 21 enter the wire guiding groove 245 from the two first notches 244 and are led out from the two second notches 246. In the embodiment provided by the present application, the conductive lead 252 is first fixed in the lead groove 245, and then the fixing seat 24 is fixed at one end of the sleeve 23, a tension force is generated between the first section 241 of the sleeve 23 and the fixing seat 24, and the conductive lead 252 is clamped between the first section 241 of the sleeve 23 and the fixing seat 24, so that the fixing of the conductive lead 252 of the heating element 21 can be realized while the assembly process is optimized, and the conductive lead 252 is prevented from being pulled during the assembly to cause the deformation of the heating portion of the heating element 21, thereby being detached from the attachment with the surface of the liquid guiding element 22.

The sleeve 23 of the atomizing core unit is preferably formed by stretching a metal material into a tubular structure, and the fixing seat 24 is preferably molded from a plastic material. In order to increase the strength of the mold and prolong the service life of the mold, referring to fig. 5, a plurality of recessed areas are provided on the outer side surface of the fixing seat 24, and the wall thickness of the steel material of the mold at the corresponding position can be increased, thereby enhancing the strength of the mold. In one example, recessed regions are respectively arranged on two sides of each lead groove, and the recessed regions longitudinally extend from the top end of the main body part to a part of the area of the boss part and further transversely extend to be communicated with the lead grooves. It will be appreciated that the recessed area is advantageous to save plastic material used for molding the mounting base 24.

The fixing seat 24 is used for supporting the atomizing assembly in cooperation with the sleeve 23, and is also used for fixing the supporting assembly inside the atomizer. When the outer diameter of the portion of the fixing seat 24 exposed out of the sleeve 23 is the same as the outer diameter of the sleeve 23, the whole atomizing core unit is generally cylindrical, which is not favorable for assembling and positioning the atomizing core unit and other components inside the aerosol generating device. In the embodiment provided by the present application, the second section 242 of the fixing seat 24 is exposed out of the sleeve 23, and the outer diameter of the second section 242 of the fixing seat 24 is larger than the outer diameter of the sleeve 23, so that the second section 242 of the fixing seat 24 can be positioned by using the protruding structure.

In particular, further description will be made below in connection with specific structures inside the aerosol-generating device. As will be described below by taking as an example the internal structure of a disposable aerosol generating device having a substantially cylindrical shape, as shown in fig. 6 to 8, the aerosol generating device comprises a housing assembly mainly composed of two parts, a first casing 11 of the atomizer and a second casing 12 of the power supply assembly, the first casing 11 of the atomizer and the second casing 12 of the power supply assembly being arranged in an up-down connection structure, specifically, a part of the casing of the atomizer is thinned, and a rib is provided on an outer wall of the part of the casing, by means of which rib the first casing 11 of the atomizer can be coupled to the second casing 12 of the power supply assembly. A portion of the first housing 11 defines a mouthpiece 13, which the user primarily contacts during use of the aerosol-generating device, the mouthpiece 13 being configured in the shape of a feeding bottle, as shown in fig. 1, and the mouthpiece 13 being made of a more safe food grade plastic material, such as PPSU (polyphenylene sulfone resin). A portion of the interior of the first housing 11 defines a reservoir chamber 14 for storing a liquid substrate. In one example thereof, a first inner tube 15 is arranged within the first housing 11, the interior of the first inner tube 15 being filled with a capillary element 16, the liquid medium being stored inside the capillary element 16. The first inner tube 15 is provided at both ends thereof with a first sealing seat 31 and a second sealing seat 32, wherein the first sealing seat 31 is used for supporting the fixing seat 24, and the sleeve 23 extends along the longitudinal direction thereof for a sufficient length until the end thereof abuts against the second sealing seat 32. The second seal holder 32 includes a hollow columnar portion 323, the columnar portion 323 is accommodated in the inner cavity of the sleeve 23, the second seal holder 32 further accommodates a liquid absorbing element 321, the liquid absorbing element 321 is preferably made of fiber cotton, the liquid absorbing element 321 is provided with a through air hole 322, and the aerosol generated by the atomization of the heating element 21 is guided through the sleeve 23, enters the inner cavity of the second seal holder 32 and the air hole 322 of the liquid absorbing element 321, and is finally discharged through the suction nozzle 130 to be sucked by the user. It will be appreciated that the cellucotton is capable of absorbing condensate in the aerosol if the aerosol carries the condensate.

The outer wall of the first sealing seat 31 is connected to the first inner tube 15, a hollow receiving cavity 311 is disposed inside the first sealing seat 31, and an external air flow can enter through the bottom opening of the receiving cavity 311 and be guided into the through hole 243 of the fixing seat 24 through the receiving cavity 311. A portion of the sleeve 23 is inserted into the receiving cavity 311, and a groove 312 is further provided on the first seal holder 31, the groove 312 being sized to receive the second section 242 of the fixing holder 24. The recess 312 is formed by the receiving cavity 311 being further recessed inward, and the bottom end and the top end of the second section 242 of the fixing seat 24 are respectively abutted against the top end and the bottom end of the recess 311, so that the second section 242 of the fixing seat 24 can be stably received in the recess 312 of the first sealing seat 31. It should be noted that, since the second sealing seat 32 is preferably made of a flexible silicone material, even if the inner diameters of both open ends of the receiving cavity 311 are smaller than the inner diameter of the groove 312, the fixing seat 24 can be inserted into the groove 312 from the open end of the receiving cavity 311. After the second segment 242 of the fixing seat 24 is received in the groove 312 of the first sealing seat 31, an interference effect is generated between the fixing seat 24 and the first sealing seat 31, that is, the second segment 242 of the fixing seat 24 abuts between two end walls of the groove 312, and a longitudinal displacement between the fixing seat 24 and the first sealing seat 31 is difficult to occur. Therefore, as long as the second segment 242 of the fixing seat 24 is accommodated in the groove 312 of the first sealing seat 31, the entire atomizing core unit is difficult to move out of the accommodating cavity 311 of the first sealing seat 31. Therefore, in the assembling process of the automatic device, the assembled atomizing core unit is inserted into the second section 242 of the fixing seat 24 of the atomizing core unit from the open end of the accommodating cavity 311 of the first sealing seat 31 and is accommodated in the groove 312, the atomizing core unit is assembled, the liquid storage element 16 is filled in the first inner tube 15, and the liquid matrix is injected into the liquid storage element 16, the second sealing seat 32 is assembled at the other end of the first inner tube 15, and meanwhile, the columnar part 323 of the second sealing seat 32 abuts against one end of the sleeve 23, the whole assembling process does not need manual correction, and automatic assembly is facilitated.

In a preferred embodiment, a flexible member 42 is further disposed between the battery 41 and the second inner tube 40, and the flexible member 42 is disposed to surround a part of the side surface of the battery 41, so as to prevent the battery 41 from being deformed during overcharge and overdischarge processes. A sealing plug 43 is further disposed at the bottom end of the inner cavity of the second housing 12, an airflow sensing switch is disposed inside the sealing plug 43, and an air inlet hole is disposed on the bottom end surface of the second housing 12, and the air inlet hole guides the external airflow into the inner cavity of the second housing 12 and further into the through hole 243 on the fixing seat 24 inside the first housing 11 of the atomizer.

It should be noted that the description and drawings of the present application illustrate preferred embodiments of the present application, but are not limited to the embodiments described in the present application, and further, those skilled in the art can make modifications or changes according to the above description, and all such modifications and changes should fall within the scope of the claims appended to the present application.

Claims (12)

1. An atomizer, comprising:

a housing defining a reservoir cavity therein for storing a liquid substrate;

an atomizing assembly for atomizing a liquid substrate to produce an aerosol;

the sleeve is provided with a hollow cavity, and the cavity is used for accommodating the atomization assembly; and

the fixed seat is connected to one end of the sleeve and used for supporting the atomization assembly;

the fixing seat comprises a first section and a second section which are connected, the first section is contained in the cavity of the sleeve, the second section is positioned outside the sleeve, and the outer diameter of the second section is larger than that of the end part of the sleeve.

2. The nebulizer of claim 1, further comprising a first sealing seat for sealing the reservoir, the first sealing seat having a recess, wherein the second section of the retaining seat is secured within the recess.

3. The nebulizer of claim 2, wherein a receiving cavity is disposed within the first seal seat, the receiving cavity configured to receive at least a portion of the cannula, the recess defined by the receiving cavity being inwardly recessed.

4. A nebulizer as claimed in claim 2, wherein a hollow inner tube is provided within the housing, the first seal mount being connected to one end of the inner tube, and a second seal mount being provided at the other end of the inner tube, the sleeve extending longitudinally into abutment with the second seal mount.

5. The atomizer of claim 1, wherein an opening is provided in a sidewall of said sleeve, said opening extending longitudinally from an open end of said sleeve and terminating in said sidewall of said sleeve;

the atomization assembly comprises a heating element and a liquid guide element arranged to surround the heating element.

6. The atomizer of claim 5, wherein said liquid-directing element includes a boss at least partially received in said opening and a terminal end of said opening is configured to provide a longitudinal stop for said boss.

7. The nebulizer of claim 5, wherein the liquid directing element comprises a boss configured to extend from the opening from the interior of the cannula into the reservoir chamber.

8. The atomizer of claim 1, wherein said atomizing assembly includes a heating element and leads connected to opposite ends of said heating element, at least a portion of said holder defining two lead slots, said leads extending from said lead slots.

9. The atomizer of claim 8, wherein said lead channel is disposed in an outer wall of said holder, two first notches being disposed at a top end of said first section of said holder, said lead channel extending longitudinally to communicate with said first notches.

10. The atomizer of claim 8, wherein two second notches are provided in a second section of said holder, a portion of said lead being clamped between said sleeve and said holder, another portion of said lead exiting from said second notches.

11. An atomizing core unit, comprising:

the sleeve is provided with a hollow cavity, and the side wall of the sleeve is provided with a longitudinally extending opening;

the atomization assembly is accommodated in the cavity of the sleeve; the atomization assembly includes a heating element and a liquid-conducting element surrounding the heating element, the liquid-conducting element including a projection that is extendable from the opening from inside the cavity to outside the sleeve; and

the fixed seat is connected to one end of the sleeve and used for supporting the atomization assembly;

the fixing seat comprises a first section and a second section which are connected, the first section is contained in the cavity of the sleeve, the second section is positioned outside the sleeve, and the outer diameter of the second section is larger than that of the end part of the sleeve.

12. An aerosol generating device comprising a nebuliser according to any one of claims 1 to 10 and a power supply assembly for providing electrical drive to the nebuliser.

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