CN116406824A - Atomizing core unit, atomizer and aerosol generating device - Google Patents

Abstract

The application discloses an atomizer, a replaceable atomizing core unit and an aerosol generating device, wherein the atomizer comprises a shell and a liquid storage cavity arranged in the shell, and the liquid storage cavity is used for storing a liquid matrix; an atomizing assembly comprising a heating element and a liquid guiding element; the heating element is used for atomizing the liquid matrix to form aerosol, and the liquid guiding element is used for transmitting the liquid matrix to the heating element; a bracket defining a receiving cavity, at least a portion of the atomizing assembly being received within the receiving cavity; the liquid guiding element comprises a main body part and an extension part extending from the main body part; the main body part is arranged inside the accommodating cavity, and the extension part is arranged outside the accommodating cavity; the extension portion is configured to transfer the liquid matrix inside the liquid storage cavity to the main body portion for providing to the heating element, improving the transfer efficiency of the liquid matrix.

Description

Atomizing core unit, atomizer and aerosol generating device

technical field

The embodiments of the present application relate to the field of aerosol generating devices, in particular to an atomizer and an aerosol generating device.

Background technique

An aerosol generating device usually includes a container for storing a liquid base and an atomizing component for heating the liquid base to form an aerosol. The liquid base may contain nicotine and/or flavoring and/or aerosol generating substances (eg glycerin or propylene glycol). As an example, the inside of the container can be filled with a liquid storage component with a capillary structure to store the liquid matrix; for the tubular atomization assembly, it also includes a heating element and a first liquid guiding element that is at least partially arranged around the heating element. The periphery of the liquid element is also provided with a second liquid guiding element that is in direct contact with the liquid storage part or the liquid matrix in the liquid storage container.

In the prior art, the path through which the liquid matrix is delivered to the heating element is usually that the liquid matrix inside the liquid storage container or the liquid storage part enters the second liquid guiding element, and the liquid matrix inside the second liquid guiding element is then transferred to the second liquid guiding element through the liquid guiding hole. A liquid conducting element. Since the second liquid-guiding element is not in direct contact with most of the surface of the first liquid-guiding element, it takes a certain amount of time for the second liquid-guiding element to be transferred to the first liquid-guiding element, resulting in the transfer of the liquid matrix inside the aerosol generating device. The rate is not high. Especially when the user uses the aerosol generating device for the first time, neither the first liquid guiding element nor the second liquid guiding element is infiltrated with the liquid matrix, and the user needs to wait for a long time before the liquid matrix can reach the heating element, thereby generating an aerosol , leading to poor user experience.

On the other hand, when the liquid storage container is filled with a liquid storage part, both the liquid storage part and the second liquid guiding element are made of flexible materials, and it is difficult to install and fix the second liquid guiding element inside the liquid storage part. Moreover, during the installation and positioning process of the second liquid guiding element, the two flexible parts are squeezed, which will cause local deformation of the liquid storage part and the second liquid guiding element, resulting in uneven dispersion of the liquid matrix, which will further affect the subsequent liquid matrix. delivery rate.

Contents of the invention

In order to solve the problem of the slow transfer rate of the liquid matrix inside the aerosol generating device in the prior art, an embodiment of the present application provides an atomizer, which includes a housing and a liquid storage chamber arranged inside the housing. The liquid storage cavity is used to store the liquid matrix; the atomization component includes a heating element and a liquid guiding element; the heating element is used to atomize the liquid matrix to form an aerosol; the liquid guiding element is used to transfer the liquid matrix to the heating element; bracket, at least part of the bracket forms a housing chamber; at least part of the atomization assembly is accommodated inside the housing chamber; the liquid guiding element includes a main body and an extension extending from the main body The main body part is wound inside the accommodation chamber and surrounds the heating element, the extension part extends from the interior of the accommodation chamber to the outside of the bracket and at least partially enters the liquid storage chamber; the extension part configured to transfer the liquid matrix inside the liquid reservoir to the body portion for supply to the heating element.

In some embodiments, the liquid guiding element is configured as a flexible and rollable sheet, and the thickness of the main body part is greater than the thickness of the extension part.

In some embodiments, the liquid guiding element is formed by laminating several layers of capillary elements.

In some embodiments, the main body portion includes M layers of capillary elements; the extension portion includes N layers of capillary elements; wherein, N is less than M.

In some embodiments, at least a portion of the extension surrounds at least a portion of the outer side surface of the stent.

In some embodiments, the extension includes a first extension and a second extension respectively connected to the main body.

In some embodiments, the first extension portion and the second extension portion extend circumferentially on the outer surface of the stent along different encircling directions with the longitudinal axis of the stent as an axis and approach each other.

In some embodiments, the first extension or the second extension includes a first segment extending continuously and a second segment, the first segment is disposed around at least part of the outer surface of the stent, and the second segment Extending away from the outer side surface of the bracket.

In some embodiments, the extension part further includes a third extension part and a fourth extension part connected to the main body part, and the third extension part and the fourth extension part radially extend along the main body part.

In some embodiments, the third extension and the fourth extension extend substantially parallel.

In some embodiments, a liquid storage element having a capillary structure is provided in the liquid storage chamber, and the liquid storage element is used to keep the liquid matrix in the liquid storage chamber.

In some embodiments, the extension is in contact with at least a portion of the surface of the storage element.

In some embodiments, the liquid storage element includes a first liquid storage element and a second liquid storage element, and at least a part of the extension is interposed between the first liquid storage element and the second liquid storage element.

In some embodiments, the extension part includes a first extension section and a second extension section respectively arranged on both sides of the main body part, and the first extension section and the second extension section are sandwiched between the Between the first liquid storage element and the second liquid element.

In some embodiments, the bracket is provided with a first notch, and the extension part extends to the outside of the accommodating cavity through the first notch.

In some embodiments, the bracket is provided with a second notch; the free end of the first extension part and the free end of the second extension part converge at the second notch.

In some embodiments, a liquid guide hole is provided on the bracket, and at least a part of the extension part can cover the liquid guide hole.

The embodiment of the present application also provides a replaceable atomizing core unit, including an atomizing assembly for atomizing a liquid matrix to form an aerosol, the atomizing assembly includes a heating element and a liquid guiding element; a sleeve-shaped bracket , the bracket is defined to form an accommodation cavity; at least part of the atomization assembly is accommodated inside the accommodation cavity; the liquid guiding element includes a main body part and an extension part, the main body part is wound inside the accommodation cavity and Surrounding the heating element, the extension portion extends from the inside of the receiving chamber to the outside of the bracket, and the extension portion is configured to be capable of transferring a liquid matrix to the main body portion to provide the heating element.

The embodiment of the present application also provides an aerosol generating device, including the above-mentioned atomizer and a power supply assembly for providing electric drive for the atomizer.

The beneficial effect of the present application is that, since the liquid guiding element inside the above nebulizer includes a main body and an extension extending from the main body, the main body is wound inside the accommodating chamber of the bracket and surrounds the heating element, and the extension is from The interior of the accommodation chamber extends to the outside of the bracket and at least partially enters the liquid storage chamber, so the extension part can transfer the liquid matrix inside the liquid storage chamber to the main body through the capillary force of the liquid guiding element itself to provide it to the heating element, improving the transfer efficiency of the liquid matrix.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute a limitation to the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the drawings are not limited to scale.

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

Figure 2 is an exploded view of the aerosol generating device provided in the embodiment of the present application;

Fig. 3 is a sectional view of the aerosol generating device provided by the embodiment of the present application;

Fig. 4 is a perspective view of the housing provided by the embodiment of the present application;

Fig. 5 is an exploded view of the atomizer provided by the embodiment of the present application;

Fig. 6 is an exploded view of the atomizing core unit provided by the embodiment of the present application;

Fig. 7 is a top view of a liquid guiding element provided by an embodiment of the present application;

Fig. 8 is a top view of a liquid guiding element provided by another embodiment of the present application;

Fig. 9 is a top view of the liquid guiding element fixed on the bracket provided by the embodiment of the present application;

Fig. 10 is a cross-sectional view of an atomizer provided by an embodiment of the present application;

Fig. 11 is an exploded view of an atomizing core unit provided by an embodiment of the present application.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific implementation methods.

It should be noted that all directional indications (such as up, down, left, right, front, back, horizontal, vertical, etc.) If the relative positional relationship, movement conditions, etc. between the components change, the directional indication will also change accordingly. The "connection" can be a direct connection or an indirect connection, so The above "set", "set at" and "set at" can be directly set at or indirectly set at.

In addition, the descriptions in this application such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

The present application provides an aerosol generating device, including an atomizer 100 and a power supply assembly. The power supply assembly mainly includes a battery 50 . The atomizer 100 is electrically connected to the power supply assembly, and the power supply assembly provides electric drive for the atomizer 100 . The atomizer 100 and the power supply assembly can be configured as two independent components, the liquid matrix is stored inside the atomizer 100, so the atomizer 100 can be set as a consumable for replacement, and the battery assembly as the main part can be used with different atomizers Converter 100 for combination. In an embodiment provided in the present application, the atomizer 100 and the power supply assembly are combined into a whole, and the two assemblies are accommodated inside a casing assembly 10 .

Now take the box-shaped aerosol generating device as an example to describe its internal structure. Referring to FIG. 1 to FIG. 3 , the shell assembly includes a housing 11 and an end cover 12 , and the end cover 12 is detachably connected to the housing 11 . One end of the housing 11 is provided with a suction nozzle 13 , and the other end of the housing 11 is open. The suction nozzle 13 and the casing 11 can be integrally formed, or the suction nozzle 13 and the casing 11 can be configured separately and then the suction nozzle 13 can be connected to one end of the casing 11 . The suction nozzle 13 is roughly flat, and when the user uses the aerosol generating device, the user's mouth mainly contacts with the suction nozzle 13 . A nozzle opening 130 is provided at the end of the suction nozzle 13 , and the suction nozzle opening 130 communicates with the inside of the casing 11 , and the aerosol can reach the user's mouth through the suction nozzle opening 130 . When the aerosol generating device leaves the factory, or when the aerosol generating device is stored, a dustproof cap can be installed at the suction nozzle opening 130 to prevent dust from entering the interior of the aerosol generating device.

The inner cavity of the housing 11 can be roughly divided into two areas, as shown in FIG. 4 , which are respectively a first area 111 and a second area 112 , and the first area 111 and the second area 112 are spaced apart. The atomizer 100 is accommodated in the first area 111, and the battery 50 or battery pack is accommodated in the second area. The casing 11 includes a length A direction, a width B direction and a thickness C direction, and the first zone 111 and the second zone 112 can be separated along any one of the length A direction, width B direction and thickness C direction. In an embodiment provided in the present application, the first area 111 and the second area 112 are separated along the width B direction, and the overall length of the aerosol generating device is relatively small, which is convenient for users to carry. A partition plate 113 is provided inside the first housing 11, and the partition plate 113 may be formed by the inner wall of the first housing 11, or may be a control board of the power supply assembly, which is not limited here. A bone can also be provided on the inner wall of the second area 112 to enhance the fixing effect on the battery 50 .

Referring to FIG. 3 and FIG. 5 , the atomizer 100 includes a liquid storage cavity 14 for storing a liquid matrix. In some embodiments, an inner tube 15 is disposed inside the housing 11 , and the liquid storage chamber 14 is defined by the inner tube 15 . The liquid storage chamber 14 can directly store a liquid matrix, and the liquid storage chamber 14 can also be filled with a liquid storage element 16 having a capillary structure, and the liquid matrix is stored in the liquid storage element 16 . The inner tube 15 includes a first end and a second end oppositely disposed, and the first end is disposed toward the suction nozzle 13 . A first sealing plug 31 is provided on the first end of the inner tube 15 , and a second sealing plug 32 is provided on the second end of the inner tube 15 . The outer surface of the first sealing plug 31 is provided with multi-layer sealing ribs, so that the outer surface of the first sealing plug 31 and the inner wall of the inner tube 15 are sealed and connected; on the outer surface of the second sealing plug 32 also A multi-layer sealing bead is provided to make a sealed connection between the outer surface of the second sealing plug 32 and the inner wall of the inner tube 15 . The first sealing plug 32 is provided with a groove toward one end of the suction nozzle 13, and a first liquid absorption element 33 is placed in the groove. The first liquid absorption element 33 is preferably made of fiber cotton, sponge and other materials with a capillary structure. A part of the condensate can be absorbed to prevent the condensate from entering the mouthpiece 130 and being sucked by the user. A first air outlet 311 is provided on the first sealing plug 31, a second air outlet 331 is provided on the first liquid-absorbing element 33, the first air outlet 311, the second air outlet 331, and the nozzle mouth 130 are arranged along the housing. 11. The longitudinal connection is maintained, so that the aerosol output can be inhaled by the user. A flange 321 is provided on the outer surface of the second sealing plug 32 , the upper end of the flange 321 abuts against the second end of the inner tube 15 , and the lower end of the flange 321 abuts against the end cap 12 . A first air inlet 322 is provided on the second sealing plug 32 , through which external air can enter the interior of the inner tube 15 .

The atomizer 100 also includes an atomizing core unit 20 for atomizing the liquid matrix to form an aerosol. The atomizing core unit 20 includes an atomizing assembly 21 and a supporting assembly for fixing the atomizing assembly 21 inside the casing 11 . The atomizing assembly 21 includes a heating element 211 with a heating function and a liquid guiding element 212 with a liquid transfer function. In some embodiments, the liquid guiding element 212 can be a porous body made of a hard capillary structure such as porous ceramics, porous glass ceramics, porous glass, etc. The liquid guiding element 212 is roughly block-shaped, and at least part of the liquid guiding element 212 A heating element 211 is fixed on the surface. The heating element 211 may be one of a heating coating, a heating sheet or a heating mesh. Wherein, the heating coating may include, but not limited to, electromagnetic induction heating coating, infrared induction heating coating, and the like. Alternatively, the heating element 211 can be made of conductive raw material powder mixed with printing aids to form a slurry, which is then printed and sintered on the surface of the porous body. In another embodiment, the heating element 211 may be a helical heating wire made of at least one of materials such as stainless steel, nickel-chromium alloy, iron-chromium-aluminum alloy, and metal titanium, or a tubular heating sheet with grids. The liquid guiding element 212 is made of a material with capillary structure and excellent liquid storage performance, such as non-woven fabric, fiber cotton and the like. The helical heating wire or tubular heating net is surrounded by at least part of the surface of the liquid guiding element 212 , and the liquid guiding element 212 is vertically arranged vertically to the casing 11 . The liquid guiding element 212 can be fixedly arranged on the outside of the helical heating wire or the tubular heating net, and the heating element 211 extends longitudinally along the casing 11 .

Now take the tubular atomizing core unit 20 as an example for specific description. Referring to FIG. 5 and FIG. The heating element 211 is arranged to extend longitudinally along the housing 11 . The support assembly includes a bracket 22 which is generally tubular in shape. At least part of the bracket 22 forms an open accommodation chamber 221 , and at least part of the atomization assembly 21 can be accommodated inside the accommodation chamber 221 . Two notches are also provided on the bracket 22 , namely a first notch 222 and a second notch 223 . The first notch 222 and the second notch 223 extend longitudinally to the open end. The liquid guiding element 212 can be fixedly installed inside the accommodating cavity 221 by means of the first notch 222 and the second notch 223 . A sleeve 23 is disposed at one end of the bracket 22 , and the inside of the sleeve 23 is hollow. The casing 23 and the bracket 22 jointly define an atomizing chamber 25 . The other end of the bracket 22 abuts against the second sealing plug 32 . And a part of the bracket 22 is sealed and sleeved inside the second sealing plug 32 , and the first air inlet 322 on the second sealing plug 32 communicates with the inner cavity of the bracket 22 . A set of electrical connectors 24 is also provided on the second sealing plug 32 , conductive pins are provided at both ends of the heating element 211 , and the conductive pins pass through the inner cavity of the bracket 22 to conduct conductive connection with the set of electrical connectors 24 .

The atomizing core unit 20 is arranged in the middle of the inner tube 15 , and the liquid storage chamber 14 is arranged around the atomizing core unit 20 . When the liquid storage chamber 14 is filled with the liquid storage element 16 , the interior of the liquid storage element 16 is hollow to form an accommodating cavity 17 , and at least part of the atomizing core unit 20 is accommodated in the accommodating cavity 17 . The casing 23 and the outer wall of the bracket 22 are used to separate the liquid storage chamber 14 and the atomization chamber 25 . In order to quickly guide the liquid matrix inside the liquid storage chamber 14 to the heating element 211, in one embodiment provided by the application, a part of the liquid guiding element 212 is arranged around the heating element 211, and the other part of the liquid guiding element 212 is connected to the liquid storage chamber. 14 in direct contact with the liquid matrix inside. When the liquid storage cavity 14 is filled with the liquid storage element 16 , the liquid guiding element 212 is in direct contact with at least part of the liquid storage element 16 . In a specific embodiment, as shown in FIGS. 7 to 10 , the liquid guiding element 212 includes a main body 213 and an extension 214 extending from an end of the main body 213 . The main body portion 213 is disposed inside the accommodating cavity 221 , and the extension portion 214 is disposed outside the accommodating cavity 221 . In some embodiments, the extension 214 includes a first extension 2141 and a second extension 2142 . The first extension part 2141 and the second extension part 2142 go around the first notch 222 of the bracket 22 in different directions from the two ends of the main body part 213 respectively, and are respectively along two opposite outer surfaces of the bracket 22. Extending in the direction, the free end of the first extension part 2141 and the free end of the second extension part 2142 are gathered and positioned at the second notch 223 of the bracket 22 . In some embodiments, when the width of the liquid storage cavity 14 along the direction of the housing 11B is relatively large, the extension part 214 can also extend along the radial direction of the main body part 213, so that the extension part 214 and the liquid storage element 16 have a sufficiently large width. the contact area. Specifically, the extension part 214 further includes a third extension part 2143 and a fourth extension part 2144, and the third extension part 2143 and the fourth extension part 2144 are also respectively from two ends of the main body part 213 along the radial direction of the main body part 213. Pass through the first notch 222 . In some embodiments, the length of the first extension part 2141 and/or the second extension part 2142 is long enough, the first extension part 2141 and/or the second extension part 2142 includes two sections extending continuously, and the first section extends along the bracket The outer surface of the bracket 22 extends circumferentially, and the second section is away from the outer surface of the bracket 22 and extends along the radial direction of the main body portion 213 . Wherein, the extension direction of the second segment is opposite to the extension direction of the third extension portion or the fourth extension portion, so that the extension portion 214 of the liquid guiding element 212 can extend as much as possible along the width direction of the casing 11 . Wherein, the first extension part 2141 includes a first extension part 21411 and a first extension part second part 21412, and the first extension part second part 21412 extends from the end of the first extension part first part 21411 along the main body 213 radial extension. The second extension 2142 includes a second extension first section 21421 and a second extension second section 21422 , and the second extension second section 21422 extends from the end of the second extension first section 21421 along the radial extension. And the second section 21412 of the first extension part and the second section 21422 of the second extension part can be gathered together for easy fixing.

Since the first extension 2141, the second extension 2142, the third extension 2143, and the fourth extension 2144 of the liquid guiding element 212 are respectively in direct contact with the liquid storage element 16 inside the liquid storage chamber 14, the first extension, the second extension The second extension part 2142 and the third extension part 2143, the fourth extension part 2144 and the main body part 213 are connected to each other through the capillary structure inside the liquid guiding element 212, the first extension part 2141, the second extension part 2142 and the third extension part 2143, The fourth extension part 2144 can directly and quickly transfer the liquid matrix inside the liquid storage chamber 14 to the main body part 213 through the capillary force of the liquid guiding element 212 itself. In some embodiments, the first extension part 2141 and the second extension part 2142 are respectively arranged on a part of the outer surface of the bracket 22 in opposite circumferential directions. Several liquid guide holes 224 are arranged on the bracket 22, and several liquid guide holes 224 are arranged at intervals along the circumference of the bracket 22, and a part of the first extension 2141 and/or the second extension 2142 can cover the liquid guide holes 224. When the first extension 2141 and the second extension 2142 of the liquid guide element 212 store enough liquid matrix, the liquid matrix stored in the first extension 2141 and the second extension 2142 can also be transferred through the liquid guide hole 224 to the main body part 213.

Taking the center of the main body 213 of the liquid guiding element 212 as the axis, the first extension 2141 and the second extending 2142 of the liquid guiding element 212 extend approximately along the axis of the circumference, and the free end of the first extension 2141 is connected to the second The free ends of the extension part 2142 are close together to form a complete closed circle or ring. The first extension 2141 has a first surface 2151 in contact with the outer surface of the bracket 22, and a second surface 2152 in direct contact with the liquid storage element 16; the second extension 2142 has a third surface in contact with the outer surface of the bracket 22 2153 and the fourth surface 2154 in direct contact with the liquid storage element 16; the liquid matrix is transmitted from the first surface 2151 of the first extension part 2141 to the second surface 2152 through the internal capillary force along the radial direction of the liquid guide element 212. The fluid guiding hole 224 communicates to the main body portion 213 of the fluid guiding element 212 . The liquid matrix is transmitted from the third surface 2153 of the second extension part 2142 to the fourth surface 2154 through the internal capillary force along the radial direction of the liquid guiding element 212 .

In some embodiments, the liquid storage element 16 inside the liquid storage cavity 14 is composed of several parts, and the free ends of the several liquid storage elements 16 can be joined together and gathered around the periphery of the atomizing core unit 20 . The liquid storage element 16 can be spliced and assembled from two parts, three parts, four parts and other more parts according to the needs of the assembly operation. Now take two parts as an example for illustration, the liquid storage element 16 includes a first liquid storage element 161 and a second liquid storage element 162 . The first liquid storage element 161 and the second liquid storage element 162 are spliced on the outer periphery of the atomizing core unit 20, and at least a part of the extension 214 of the liquid guide element 212 is sandwiched between the first liquid storage element 161 and the second liquid storage element Between 162. Specifically, the first liquid storage element 161 includes a first splicing surface 163, and the second liquid storage element 162 includes a second splicing surface 164. When the first liquid storage element 161 and the second liquid storage element 162 are spliced, the first surface 163 and the second surface 164 are kept close to or attached to each other. The first section 21411 of the first extension and the first section 21421 of the second extension of the liquid guide element 212 are against the first joint surface 163 or the second joint surface 164, and the first section 21411 of the first extension is connected to the first reservoir. The liquid element 161 is in contact, and the first section 21421 of the second extension part is in contact with the second liquid storage element 162 . The second section 21412 of the first extension part and the second section 21422 of the second extension part are gathered together and sandwiched in the gap between the first joint surface 163 and the second joint surface 164 . The third extension portion 2143 and the fourth extension portion 2144 are gathered together and disposed in a gap between the first joint surface 163 and the fourth joint surface 164 . Gather the free ends of the first extension part 2141 and the free ends of the second extension part 2142 and arrange them in the gap between the first joint surface 163 and the second joint surface 164, so that the first extension part 2141 and the second extension part 2142 Fixation of the free end.

Since the liquid guiding element 212 needs to be turned over, it is preferably formed by folding and winding several layers of sheets. The sheet can be made of non-woven fabric or fiber cotton. In some embodiments, the liquid guiding element 212 is formed by repeatedly winding several layers of non-woven fabrics around the heating element 211 to form the main body 213 , and then the several layers of non-woven fabrics in the main body 213 are folded from the first gap 222 of the bracket 22 The first extension part 2141 and the second extension part 2142 are formed by winding on the outer surface of the bracket 22 . The number of layers of non-woven fabric included in the first extension part 2141 or the second extension part 2142 is smaller than the number of layers of non-woven fabric included in the main body part 213 . The end of a part of the non-woven fabric that has not been turned over in the main body part 213 forms a third extension part 2143 and a fourth extension part 2144, and the third extension part 2143 and the fourth extension part 2144 are gathered together and fixed to the first splicing surface 163 and In the gap between the second splicing surfaces 164 . When the third extension part 2143 and the fourth extension part 2144 have a certain length, the third extension part 2143 and the fourth extension part 2144 can also absorb a certain amount of liquid from the first liquid storage element 161 and the second liquid storage element 162 The liquid matrix is delivered to the main body 213 through the third extension part 2143 and the fourth extension part 2144 . It can be understood that when the volume of the liquid storage element 16 is relatively large, or the liquid storage element 16 is composed of multiple parts, the liquid guide element 212 needs to be provided with the first extension 2141 and the second extension extending in the circumferential direction at the same time. 2142 and the third extending portion 2143 and the fourth extending portion 2144 extending radially, so that the liquid matrix stored in the first liquid storage element 161 and the second liquid storage element 162 can be quickly transferred to the liquid guiding element 212 . When the volume of the liquid storage element 16 is small, or the liquid storage element 16 is a whole, the liquid guiding element 212 only needs to be provided with a first extending portion 2141 and a second extending portion 2142 extending in the circumferential direction. The specific arrangement of the extension of the liquid guiding element 212 outside the receiving cavity 221 of the bracket 22 can be optimally designed according to the specific structural forms of the liquid guiding element 212 and the liquid storage element 16, so that the extension of the liquid guiding element 212 and the liquid storage The element 16 has a contact area as large as possible, so as to ensure that the liquid matrix stored in the liquid storage element 16 can be transferred to the liquid guide element 212 at the fastest speed.

The embodiment of the present application also provides an assembly method of the atomizing core unit 20. Referring to FIG. 6 and FIG. 211; Wherein, the auxiliary tool 300 used in conjunction with the heating element 211 can be a fixed rod, the outer diameter of the fixed rod is approximately the same as the inner diameter of the heating element 211, so that the heating element 211 can be sleeved on the fixed rod. At the same time, the length of the fixing rod is long enough for the user to carry out hand-held operation. When the shape of the heating element 211 changes, the shape of the aid needs to be adjusted accordingly. In the second step, the assembly in step 1 is inserted into the housing cavity 221 of the bracket 22, and the sleeve 23 is fixed on the upper end of the bracket 22; in the third step, the part of the liquid guiding element 212 protruding from the first gap 222 of the bracket 22 is turned over. Several layers of liquid guiding elements 212 are folded along the first direction and wound on the outer surface of the bracket 22 to form a first extension 2141, and several layers of liquid guiding elements 212 are folded along the second direction and wrapped around the outer surface of the bracket 22 The second extension part 2142 is formed on the upper part; the end of the first extension part 2141 and the end of the second extension part 2142 are gathered at the second gap 223 of the bracket 22; The third extending portion 2143 and the fourth extending portion 2144 are formed extending in the direction. The third extension part 2143 and the fourth extension part 2144 gather together. The last step is to fix the first liquid storage element 161 and the second liquid storage element 162 on the outer periphery of the bracket 22 and the casing 23, and the first liquid storage element 161 and the second liquid storage element 162 are connected to the outermost part of the atomizing core unit 20 Layers stay snug. Wherein, the third extension part 2143, the fourth extension part 2144, the end of the first extension part 2141 and the end of the second extension part 2142 are respectively positioned between the joint surfaces of the first liquid storage element 161 and the second liquid storage element 162 in the gap.

The aerosol generating device also includes an air inlet 40 that guides external air into the interior of the atomizer 100 . In an embodiment provided by the present application, the air inlet 40 is disposed at the bottom of the housing assembly 10 , that is, on the end cover 12 . The end cover 12 also includes a first cavity 121 with an open end, and several partition walls are arranged in the first cavity 121, and the first cavity 121 is divided into several regions by the partition walls, wherein a part of the regions forms an air guide cavity 122, The air flows into the air guide chamber 122 through the air inlet 40 . One end of the first air inlet 322 on the second sealing plug 32 communicates with the air guide chamber 122, and the other end of the first air inlet 322 communicates with the inner cavity of the bracket 22, and the external air flows through the air inlet 40 and the air guide chamber. 122 enters the interior of the atomization chamber 25 of the atomization core unit 20, and the aerosol formed inside the atomization chamber 25 enters the first air outlet hole 311 on the first sealing plug 32 sequentially through the inner cavity of the sleeve 23, and the first liquid-absorbing element The second air outlet 331 on the mouthpiece 33 finally enters the mouthpiece 130 to be sucked by the user. In order to prevent the condensate from overflowing from the air inlet 40 , a second liquid absorbing element 41 is provided inside the air guide cavity 122 , and the second liquid absorbing element 41 is preferably made of fiber cotton, sponge and other materials with a capillary structure. The second liquid absorbing element 41 can fill most of the space of the air guide chamber 122 , and at the same time, a vent hole 411 is provided on the second liquid absorbing element 41 to avoid affecting the airflow entering the atomizing chamber 25 . In some embodiments, a movable slide cover 42 is provided at the air intake end of the air intake 40, and the slide cover 42 can be adjusted to cover a part of the air intake 40 under the action of an external force, thereby changing the air intake of the air intake 40. area. Alternatively, the sliding cover 42 can completely cover the air inlet 40, thereby closing the aerosol generating device. When the user does not use the aerosol generating device, the sliding cover 42 can be operated to completely cover the air inlet 40 to prevent the condensate from overflowing from the air inlet 40 . Alternatively, some abnormal false triggering operations, such as suction by a child, or changes in external air pressure, which cause the aerosol generating device to start can also be avoided.

Inside the first chamber 121 of the end cover 12 is also fixed an airflow sensor switch 43, the airflow detection end of the airflow sensor switch 43 is connected with the air guide cavity 122, when the user performs a suction operation, the airflow detection end of the airflow sensor switch 43 can The change of the negative pressure inside the atomizing core unit 20 is sensed, so that the driving power supply 50 provides electric driving for the atomizing assembly 21 . A charging interface 44 is also fixed on the end cover 12 , and the charging interface 44 is electrically connected to the battery 50 . When the capacity of the battery 50 is small, the user can charge the battery 50 through the charging interface 44 .

It should be noted that the preferred embodiments of the application are given in the description of the application and its drawings, but they are not limited to the embodiments described in the description. Further, for those of ordinary skill in the art, they can Improvements or transformations are made according to the above description, and all these improvements and transformations shall fall within the scope of protection of the appended claims of this application.

Claims (19)

1. An atomizer, comprising:

the liquid storage device comprises a shell and a liquid storage cavity arranged in the shell, wherein the liquid storage cavity is used for storing liquid matrixes;

an atomizing assembly comprising a heating element for atomizing a liquid matrix to form an aerosol and a liquid guiding element for delivering the liquid matrix to the heating element;

a bracket defining a receiving cavity, at least a portion of the atomizing assembly being received within the receiving cavity;

the liquid guiding element comprises a main body part and an extension part extending from the main body part; the body portion being wrapped around the interior of the receiving cavity and surrounding the heating element, the extension extending from the interior of the receiving cavity to the exterior of the holder and at least partially into the reservoir; the extension is configured to transfer liquid matrix inside the reservoir to the body portion for provision to the heating element.

2. The nebulizer of claim 1, wherein the liquid directing element is configured to have a flexible, crimpable sheet shape and the thickness of the body portion is greater than the thickness of the extension portion.

3. The nebulizer of claim 1, wherein the liquid conducting element is formed by laminating a plurality of layers of capillary elements.

4. A nebulizer as claimed in claim 3, wherein the body portion comprises M layers of capillary elements; the extension includes N layers of capillary elements; wherein N is less than M.

5. The nebulizer of claim 1, wherein at least a portion of the extension surrounds at least a portion of an outside surface of the bracket.

6. The nebulizer of claim 1, wherein the extension comprises a first extension and a second extension respectively connected to the body portion.

7. The atomizer of claim 6 wherein said first extension and said second extension extend circumferentially around said bracket longitudinal axis in different circumferential directions on an outer side surface of said bracket and are drawn toward each other.

8. The nebulizer of claim 7, wherein the first extension or the second extension comprises a continuously extending first section disposed around at least a portion of an outer side surface of the bracket and a second section extending away from the outer side surface of the bracket.

9. The atomizer of claim 7 wherein said extension further comprises third and fourth extensions connected to said main body portion, said third and fourth extensions extending radially along said main body portion.

10. The nebulizer of claim 9, wherein the third extension and the fourth extension extend substantially parallel.

11. A nebulizer as claimed in any one of claims 1 to 10, wherein a liquid storage element having a capillary structure is provided in the liquid storage chamber, the liquid storage element being for retaining a liquid matrix in the liquid storage chamber.

12. The nebulizer of claim 11, wherein the extension is in contact with at least a portion of a surface of the reservoir element.

13. The nebulizer of claim 11, wherein the reservoir element comprises a first reservoir element and a second reservoir element, at least a portion of the extension being sandwiched between the first reservoir element and the second reservoir element.

14. The atomizer of claim 13, wherein said extension portion comprises a first extension section and a second extension section disposed on opposite sides of said main body portion, respectively, and wherein said first extension section and said second extension section are each sandwiched between said first reservoir element and said second reservoir element.

15. The atomizer of claim 6 wherein said bracket defines a first opening through which said extension extends outwardly of said receiving cavity.

16. The atomizer of claim 15 wherein said bracket is provided with a second notch; the free ends of the first and second extensions converge at the second gap.

17. The atomizer of claim 1 wherein said bracket is provided with a liquid guide aperture, at least a portion of said extension being capable of covering said liquid guide aperture.

18. A replaceable atomizing core unit, comprising:

an atomizing assembly for atomizing a liquid matrix to form an aerosol, the atomizing assembly comprising a heating element and a liquid directing element;

a sleeve-shaped bracket defining a receiving cavity, at least a portion of the atomizing assembly being received within the receiving cavity;

the liquid guiding element comprises a main body portion wound inside the accommodating cavity and surrounding the heating element, and an extension portion extending from inside the accommodating cavity to outside the holder and configured to be able to transfer a liquid matrix to the main body portion for provision to the heating element.

19. An aerosol-generating device comprising a nebulizer according to any one of claims 1 to 17, and a power supply assembly providing an electrical drive for the nebulizer.

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