Atomizing coil unit, atomizer and aerosol generating device

Abstract

This application discloses an atomizer, a replaceable atomizing core unit, and an aerosol generating device. The atomizer includes a housing and a liquid storage chamber disposed inside the housing for storing a liquid matrix; an atomizing assembly including a heating element and a liquid guiding element; the heating element for atomizing the liquid matrix to form an aerosol, and the liquid guiding element for transferring the liquid matrix to the heating element; a support defining a receiving cavity, wherein at least a portion of the atomizing assembly is housed within the receiving cavity; the liquid guiding element includes a main body and an extension extending from the main body; the main body is disposed inside the receiving cavity, and the extension is disposed outside the receiving cavity; the extension is configured to transfer the liquid matrix inside the liquid storage chamber to the main body for supply to the heating element, thereby improving the liquid matrix transfer efficiency.

Description

Technical Field

[0001] This application relates to the field of aerosol generating devices, and more particularly to an atomizer and an aerosol generating device. Background Technology

[0002] Aerosol generating apparatus typically includes a container for storing a liquid matrix and an atomizing component for heating the liquid matrix to form an aerosol. The liquid matrix may contain nicotine and / or fragrances and / or aerosol-generating substances (e.g., glycerol or propylene glycol). As an example, the container may be filled with a reservoir having a capillary structure to store the liquid matrix; the tubular atomizing component also includes a heating element and a first liquid guiding element disposed at least partially around the heating element, with a second liquid guiding element disposed around the periphery of the first liquid guiding element in direct contact with the liquid matrix in the reservoir or container.

[0003] In existing technologies, the typical path for the liquid matrix to be transferred to the heating element is as follows: the liquid matrix inside the storage container or storage component enters the second liquid guiding element, and then the liquid matrix inside the second liquid guiding element is transferred to the first liquid guiding element through a liquid guiding hole. Since most of the surfaces of the second and first liquid guiding elements are not in direct contact, the transfer from the second to the first liquid guiding element takes time, resulting in a low transfer rate of the liquid matrix within the aerosol generating device. Especially when a user uses the aerosol generating device for the first time, neither the first nor the second liquid guiding element is wetted with the liquid matrix, requiring the user to wait a considerable amount of time for the liquid matrix to reach the heating element and generate aerosol, leading to a poor user experience.

[0004] On the other hand, when the liquid storage container is filled with a liquid storage component, both the liquid storage component and the second liquid guiding element are made of flexible materials. Installing and fixing the second liquid guiding element inside the liquid storage component is difficult. Furthermore, during the installation and positioning of the second liquid guiding element, the two flexible components are squeezed, which can cause local deformation of the liquid storage component and the second liquid guiding element, resulting in uneven dispersion of the liquid matrix and further affecting the subsequent transfer rate of the liquid matrix. Summary of the Invention

[0005] To address the problem of slow liquid matrix transfer rate within existing aerosol generating devices, this application provides an atomizer, including a housing and a liquid storage chamber disposed within the housing for storing a liquid matrix; an atomizing assembly including a heating element and a liquid guiding element; the heating element for atomizing the liquid matrix to form an aerosol; the liquid guiding element for transferring the liquid matrix to the heating element; a support, at least a portion of which forms a receiving cavity; at least a portion of the atomizing assembly is housed within the receiving cavity; the liquid guiding element includes a main body and an extension extending from the main body; the main body is wound around the receiving cavity and surrounds the heating element, the extension extends from the receiving cavity to the outside of the support and at least partially enters the liquid storage cavity; the extension is configured to transfer the liquid matrix from the storage cavity to the main body for supplying the heating element.

[0006] In some embodiments, the fluid guiding element is configured as a flexible, rollable sheet, and the thickness of the main body is greater than the thickness of the extension.

[0007] In some embodiments, the fluid guiding element is composed of several layers of capillary elements stacked together.

[0008] In some embodiments, the main body includes M layers of capillary elements; the extension includes N layers of capillary elements; wherein N is less than M.

[0009] In some embodiments, at least a portion of the extension surrounds at least a portion of the outer surface of the support.

[0010] In some embodiments, the extension includes a first extension and a second extension respectively connected to the main body.

[0011] In some embodiments, the first extension and the second extension extend circumferentially on the outer surface of the bracket along different circumferential directions with the longitudinal direction of the bracket as the axis and approach each other.

[0012] In some embodiments, the first extension or the second extension includes a first segment and a second segment that extend continuously, the first segment being disposed around at least a portion of the outer surface of the bracket, and the second segment extending away from the outer surface of the bracket.

[0013] In some embodiments, the extension further includes a third extension and a fourth extension connected to the main body, the third extension and the fourth extension extending radially along the main body.

[0014] In some embodiments, the third extension and the fourth extension extend substantially in parallel.

[0015] In some embodiments, the liquid storage cavity is provided with a liquid storage element having a capillary structure, the liquid storage element being used to retain the liquid matrix within the liquid storage cavity.

[0016] In some embodiments, the extension contacts at least a portion of the surface of the liquid storage element.

[0017] In some embodiments, the liquid storage element includes a first liquid storage element and a second liquid storage element, and at least a portion of the extension is sandwiched between the first liquid storage element and the second liquid storage element.

[0018] In some embodiments, the extension includes a first extension segment and a second extension segment respectively disposed on both sides of the main body, and the first extension segment and the second extension segment are both sandwiched between the first liquid storage element and the second liquid receiving element.

[0019] In some embodiments, the bracket is provided with a first notch, and the extension extends outward from the receiving cavity through the first notch.

[0020] In some embodiments, the bracket is provided with a second notch; the free ends of the first extension and the free ends of the second extension converge at the second notch.

[0021] In some embodiments, the support is provided with a liquid guiding hole, and at least a portion of the extension can cover the liquid guiding hole.

[0022] This application embodiment 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 support defining a receiving cavity; at least a portion of the atomizing assembly is housed inside the receiving cavity; the liquid guiding element includes a main body and an extension, the main body being wound around the receiving cavity and surrounding the heating element, the extension extending from the receiving cavity to the outside of the support, and the extension being configured to deliver the liquid matrix to the main body to provide the heating element.

[0023] This application also provides an aerosol generating device, including the above-described atomizer and a power supply component that provides electrical drive for the atomizer.

[0024] The beneficial effect of this application is that, since the liquid guiding element inside the above atomizer includes a main body and an extension extending from the main body, the main body is wound around the inside of the receiving cavity of the support and surrounds the heating element, and the extension extends from the inside of the receiving cavity to the outside of the support and at least partially enters the liquid storage cavity, the extension can transfer the liquid matrix inside the liquid storage cavity to the main body through the capillary force of the liquid guiding element itself, thereby providing it to the heating element, thus improving the transfer efficiency of the liquid matrix. Attached Figure Description

[0025] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0026] Figure 1 This is a perspective view of the aerosol generating apparatus provided in the embodiments of this application;

[0027] Figure 2 This is an exploded view of the aerosol generating device provided in the embodiments of this application;

[0028] Figure 3 This is a cross-sectional view of the aerosol generating device provided in the embodiments of this application;

[0029] Figure 4 This is a perspective view of the housing provided in the embodiment of this application;

[0030] Figure 5 This is an exploded view of the atomizer provided in the embodiments of this application;

[0031] Figure 6 This is an exploded view of the atomizing core unit provided in the embodiments of this application;

[0032] Figure 7 This is a top view of a liquid guiding element provided in one embodiment of this application;

[0033] Figure 8 This is a top view of a liquid guiding element provided in yet another embodiment of this application;

[0034] Figure 9 This is a top view of the liquid guiding element fixed on the bracket according to an embodiment of this application;

[0035] Figure 10 This is a cross-sectional view of an atomizer provided in one embodiment of this application;

[0036] Figure 11 This is an exploded view of an atomizing core unit provided in one embodiment of this application. Detailed Implementation

[0037] To facilitate understanding of this application, a more detailed description of this application will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly. The "connection" can be a direct connection or an indirect connection. The "set", "set in", and "set at" can be a direct setting or an indirect setting.

[0039] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0040] This application provides an aerosol generating device, including an atomizer 100 and a power supply component. The power supply component mainly includes a battery 50. The atomizer 100 is electrically connected to the power supply component, which provides power to drive the atomizer 100. The atomizer 100 and the power supply component can be configured as two independent components. The liquid matrix is ​​stored inside the atomizer 100, so the atomizer 100 can be configured as a consumable and replaceable component. The battery component, as the main component, can be combined with different atomizers 100. In one embodiment provided in this application, the atomizer 100 and the power supply component are combined into a single unit, with both components housed within a housing component 10.

[0041] The internal structure of a box-shaped aerosol generator will now be explained using this example. (Reference) Figure 1 As shown Figure 3 As shown, the outer casing assembly includes a housing 11 and an end cap 12, which are detachably connected to the housing 11. A nozzle 13 is provided at one end of the housing 11, while the other end of the housing 11 is open. The nozzle 13 and the housing 11 can be integrally formed, or the nozzle 13 and the housing 11 can be configured separately and then the nozzle 13 is connected to one end of the housing 11. The nozzle 13 is generally flat, and when using the aerosol generator, the user's mouth mainly contacts the nozzle 13. A nozzle opening 130 is provided at the end of the nozzle 13, which communicates with the interior of the housing 11, allowing aerosol to reach the user's mouth through the nozzle opening 130. When the aerosol generator is shipped in its factory condition or stored, a dust cap can be installed at the nozzle opening 130 to prevent dust from entering the interior of the aerosol generator.

[0042] The inner cavity of the housing 11 can be roughly divided into two areas, as shown in the reference. Figure 4 As shown, the first region 111 and the second region 112 are separated from each other. The atomizer 100 is housed in the first region 111, and the battery 50 or a battery assembly is housed in the second region. The housing 11 includes a length direction A, a width direction B, and a thickness direction C. The first region 111 and the second region 112 can be separated along any one of these directions. In one embodiment provided in this application, the first region 111 and the second region 112 are separated along the width direction B, resulting in a shorter overall length of the aerosol generating device for easy carrying. A partition plate 113 is provided inside the first housing 11. The partition plate 113 can be formed on the inner wall of the first housing 11 or it can be a control board of the power assembly; no limitation is made here. Ribs can also be provided on the inner wall of the second region 112 to enhance the fixation of the battery 50.

[0043] refer to Figure 3 and Figure 5 As shown, the atomizer 100 includes a liquid storage chamber 14 for storing a liquid matrix. In some embodiments, an inner tube 15 is provided inside the housing 11, and the liquid storage chamber 14 is defined by the inner tube 15. The liquid matrix can be directly stored inside the liquid storage chamber 14, or the liquid storage chamber 14 can be filled with a liquid storage element 16 having a capillary structure, and the liquid matrix is ​​stored inside the liquid storage element 16. The inner tube 15 includes a first end and a second end disposed opposite to each other, with the first end facing the mouthpiece 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. Multiple layers of sealing ribs are provided on the outer surface of the first sealing plug 31, so that the outer surface of the first sealing plug 31 is sealed to the inner wall of the inner tube 15; multiple layers of sealing ribs are also provided on the outer surface of the second sealing plug 32, so that the outer surface of the second sealing plug 32 is sealed to the inner wall of the inner tube 15. The first sealing plug 32 has a groove at one end facing the suction nozzle 13, and a first liquid-absorbing element 33 is placed in the groove. The first liquid-absorbing element 33 is preferably made of a material with a capillary structure, such as fiber cotton or sponge, which can absorb a portion of the condensate and prevent it from entering the suction nozzle 130 and being inhaled by the user. A first vent 311 is provided on the first sealing plug 31, and a second vent 331 is provided on the first liquid-absorbing element 33. The first vent 311, the second vent 331, and the suction nozzle 130 are connected longitudinally along the housing 11 to facilitate aerosol output for inhalation 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 airflow can enter the interior of the inner tube 15.

[0044] The atomizer 100 also includes an atomizing core unit 20, which is used to atomize the liquid matrix to form an aerosol. The atomizing core unit 20 includes an atomizing assembly 21 and a support assembly that fixes the atomizing assembly 21 inside the housing 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 may be a porous body made of a hard capillary structure such as porous ceramic, porous glass ceramic, or porous glass. The liquid guiding element 212 is generally block-shaped, and the heating element 211 is fixed on at least a portion of the surface of the liquid guiding element 212. The heating element 211 may be one of a heating coating, a heating plate, or a heating mesh. The heating coating may include, but is not limited to, electromagnetic induction heating coatings and infrared induction heating coatings. Alternatively, the heating element 211 may be made by mixing conductive raw material powder with printing additives to form a slurry, which is then sintered onto the surface of the porous body after printing. In another embodiment, the heating element 211 may be a spiral heating wire or a tubular heating plate with a mesh, made of at least one of stainless steel, nickel-chromium alloy, iron-chromium-aluminum alloy, or titanium. The liquid guiding element 212 is made of a material with excellent liquid storage performance and a capillary structure, such as non-woven fabric or fiber cotton. The spiral heating wire or tubular heating mesh is surrounded by at least a portion of the surface of the liquid guiding element 212, which is arranged perpendicular to the longitudinal direction of the housing 11. The liquid guiding element 212 may be fixedly disposed outside the spiral heating wire or tubular heating mesh, and the heating element 211 extends longitudinally along the housing 11.

[0045] The following explanation will use the tubular atomizing core unit 20 as an example. (Refer to...) Figure 5 and Figure 6As shown, the heating element 211 is made of a heating plate with a mesh structure, and the liquid guiding element 212 is arranged around the heating element 211, with the heating element 211 extending longitudinally along the housing 11. The support assembly includes a bracket 22, which is generally tubular. At least a portion of the bracket 22 forms an open receiving cavity 221, into which at least a portion of the atomizing assembly 21 can be received. Two notches, a first notch 222 and a second notch 223, are also provided on the bracket 22. 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 receiving cavity 221 by means of the first notch 222 and the second notch 223. A sleeve 23 is provided at one end of the bracket 22, and the sleeve 23 is hollow inside. The sleeve 23 and the bracket 22 together define an atomizing cavity 25. The other end of the bracket 22 abuts against a second sealing plug 32. Furthermore, a portion of the bracket 22 is sealed 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, and conductive pins are provided at both ends of the heating element 211. The conductive pins extend out of the inner cavity of the bracket 22 and are electrically connected to the set of electrical connectors 24.

[0046] 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 hollow interior of the liquid storage element 16 forms a receiving cavity 17, and at least a portion of the atomizing core unit 20 is housed within the receiving cavity 17. The outer walls of the sleeve 23 and the support 22 are used to separate the liquid storage chamber 14 and the atomizing 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 this application, a portion of the liquid guiding element 212 is arranged around the heating element 211, and another portion of the liquid guiding element 212 is in direct contact with the liquid matrix inside the liquid storage chamber 14. When the liquid storage chamber 14 is filled with the liquid storage element 16, the liquid guiding element 212 is in direct contact with at least a portion of the liquid storage element 16. In a specific embodiment, refer to Figures 7 to 10As shown, the liquid guiding element 212 includes a main body 213 and an extension 214 extending from the end of the main body 213. The main body 213 is disposed inside the receiving cavity 221, and the extension 214 is disposed outside the receiving cavity 221. In some embodiments, the extension 214 includes a first extension 2141 and a second extension 2142. The first extension 2141 and the second extension 2142 extend around the first notch 222 of the support 22 from the two ends of the main body 213 in different circumferential directions, and extend circumferentially along the two opposite outer surfaces of the support 22, respectively. The free ends of the first extension 2141 and the second extension 2142 converge and are positioned at the second notch 223 of the support 22. In some embodiments, when the width of the liquid storage cavity 14 along the direction of the housing 11B is large, the extension 214 can also extend radially along the main body 213, so that the extension 214 has a sufficiently large contact area with the liquid storage element 16. Specifically, the extension 214 further includes a third extension 2143 and a fourth extension 2144, which also extend radially through the first notch 222 from both ends of the main body 213. In some embodiments, the first extension 2141 and / or the second extension 2142 are sufficiently long, comprising two continuously extending segments. The first segment extends circumferentially along the outer surface of the support 22, and the second segment extends radially away from the outer surface of the support 22 and along the main body 213. The extension direction of the second segment is opposite to that of the third or fourth extension, allowing the extension 214 of the liquid guiding element 212 to extend as far as possible along the width direction of the housing 11. The first extension 2141 includes a first extension first segment 21411 and a first extension second segment 21412, the second extension second segment 21412 extending radially from the end of the first extension first segment 21411 along the main body 213. The second extension 2142 includes a second extension first segment 21421 and a second extension second segment 21422, the second extension second segment 21422 extending radially from the end of the second extension first segment 21421 along the main body 213. The first extension second segment 21412 and the second extension second segment 21422 can be brought together for secure fixing.

[0047] 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 in direct contact with the liquid storage element 16 inside the liquid storage cavity 14, and the first extension 2141, the second extension 2142, the third extension 2143, and the fourth extension 2144 are connected to the main body 213 through the capillary structure inside the liquid guiding element 212, the first extension 2141, the second extension 2142, the third extension 2143, and the fourth extension 2144 can directly and rapidly transfer the liquid matrix inside the liquid storage cavity 14 to the main body 213 through the capillary force of the liquid guiding element 212 itself. In some embodiments, the first extension 2141 and the second extension 2142 are arranged in opposite circumferential directions on a portion of the outer surface of the support 22. A plurality of liquid guiding holes 224 are provided on the support 22, and the plurality of liquid guiding holes 224 are arranged at intervals along the circumference of the support 22. A portion of the first extension 2141 and / or the second extension 2142 can cover the liquid guiding holes 224. When the first extension 2141 and the second extension 2142 of the liquid guiding element 212 store a sufficient amount of liquid matrix, the liquid matrix stored in the first extension 2141 and the second extension 2142 can also be transferred to the main body 213 through the liquid guiding holes 224.

[0048] With the center of the main body 213 of the liquid guiding element 212 as the axis, the first extension 2141 and the second extension 2142 of the liquid guiding element 212 extend approximately circumferentially along the axis. The free ends of the first extension 2141 and the free ends of the second extension 2142 approach each other to form a complete closed circle or ring. The first extension 2141 has a first surface 2151 that contacts the outer surface of the support 22 and a second surface 2152 that directly contacts the liquid storage element 16; the second extension 2142 has a third surface 2153 that contacts the outer surface of the support 22 and a fourth surface 2154 that directly contacts the liquid storage element 16; the liquid matrix is ​​transmitted radially along the liquid guiding element 212 from the first surface 2151 of the first extension 2141 to the second surface 2152 through internal capillary force, and then transmitted to the main body 213 of the liquid guiding element 212 through the liquid guiding hole 224. The liquid matrix is ​​transmitted radially along the liquid guiding element 212 from the third surface 2153 of the second extension 2142 to the fourth surface 2154 via internal capillary force.

[0049] 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 spliced ​​together and gathered around the periphery of the atomizing core unit 20. The liquid storage element 16 can be spliced ​​together from two, three, four, or more parts according to the assembly operation requirements. Now, taking two parts as an example, 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 portion of the extension 214 of the liquid guiding element 212 is sandwiched between the first liquid storage element 161 and the second liquid storage element 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 ​​together, the first surface 163 and the second surface 164 remain close to or attached to each other. The first extension segment 21411 and the second extension segment 21421 of the liquid guiding element 212 abut against the first splicing surface 163 or the second splicing surface 164. The first extension segment 21411 contacts the first liquid storage element 161, and the second extension segment 21421 contacts the second liquid storage element 162. The first extension segment 21412 and the second extension segment 21422 converge and are sandwiched in the gap between the first splicing surface 163 and the second splicing surface 164. The third extension segment 2143 and the fourth extension segment 2144 converge and are disposed in the gap between the first splicing surface 163 and the fourth splicing surface 164. The free ends of the first extension segment 2141 and the second extension segment 2142 are converged and disposed in the gap between the first splicing surface 163 and the second splicing surface 164 to facilitate the fixation of the free ends of the first extension segment 2141 and the second extension segment 2142.

[0050] Since the liquid guiding element 212 requires folding operations, it is preferably formed by folding and winding several layers of sheet material. This sheet material 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 fabric around the heating element 211 to form a main body 213. Then, several layers of non-woven fabric in the main body 213 are folded from the first notch 222 of the support 22 and wound onto the outer surface of the support 22 to form a first extension 2141 and a second extension 2142. The number of non-woven fabric layers in the first extension 2141 or the second extension 2142 is less than the number of non-woven fabric layers in the main body 213. A portion of the non-woven fabric in the main body 213 that has not undergone folding operations forms a third extension 2143 and a fourth extension 2144. The third extension 2143 and the fourth extension 2144 converge and are fixed in the gap between the first splicing surface 163 and the second splicing surface 164. When the third extension 2143 and the fourth extension 2144 have a certain length, they can also absorb a certain amount of liquid matrix from the first liquid storage element 161 and the second liquid storage element 162, and transfer the liquid matrix to the main body 213. It is understood that when the volume of the liquid storage element 16 is large, or when the liquid storage element 16 is composed of multiple parts, the liquid guiding element 212 needs to simultaneously provide the circumferentially extending first extension 2141 and second extension 2142, and the radially extending third extension 2143 and fourth extension 2144, so that the liquid matrix stored in each of 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 when the liquid storage element 16 is a single unit, the liquid guiding element 212 only needs to provide the circumferentially extending first extension 2141 and second extension 2142. The specific arrangement of the extension of the liquid guiding element 212 outside the receiving cavity 221 of the support 22 can be optimized according to the specific structural form 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 element 16 have the largest possible contact area, thereby ensuring that the liquid matrix stored in the liquid storage element 16 can be transferred to the liquid guiding element 212 at the fastest speed.

[0051] This application embodiment also provides an assembly method for the atomizing core unit 20, referencing... Figure 6 and Figure 11As shown, the first step involves fixing the heating element 211 to the auxiliary tool 300, and then wrapping the liquid guiding element 212 around the outer periphery of the heating element 211. The auxiliary tool 300, used in conjunction with the heating element 211, can be a fixing rod. The outer diameter of the fixing rod is approximately the same as the inner diameter of the heating element 211, allowing the heating element 211 to be fitted onto the fixing rod. Simultaneously, the fixing rod is long enough for easy handheld operation by the user. When the shape of the heating element 211 changes, the shape of the auxiliary tool needs to be adjusted accordingly. The second step involves inserting the assembly from step one into the receiving cavity 221 of the support 22, and fixing the sleeve 23 to the upper end of the support 22. The third step involves folding the portion of the fluid guiding element 212 extending beyond the first notch 222 of the support 22. Several layers of the fluid guiding element 212 are folded along a first direction and wrapped around the outer surface of the support 22 to form a first extension 2141, and several layers of the fluid guiding element 212 are folded along a second direction and wrapped around the outer surface of the support 22 to form a second extension 2142. The ends of the first extension 2141 and the second extension 2142 converge at the second notch 223 of the support 22. Excess layers of the fluid guiding element 212 extend approximately radially along the receiving cavity 221 to form a third extension 2143 and a fourth extension 2144. The third extension 2143 and the fourth extension 2144 converge towards each other. The final step involves fixing the first liquid storage element 161 and the second liquid storage element 162 to the outer periphery of the bracket 22 and the sleeve 23, ensuring that the first liquid storage element 161 and the second liquid storage element 162 are tightly fitted to the outermost layer of the atomizing core unit 20. Specifically, the ends of the third extension 2143, the fourth extension 2144, the first extension 2141, and the second extension 2142 are respectively positioned in the gap between the splicing surfaces of the first liquid storage element 161 and the second liquid storage element 162.

[0052] The aerosol generating device also includes an air inlet 40 that guides external air into the interior of the atomizer 100. In one embodiment provided in this application, the air inlet 40 is located at the bottom end of the housing assembly 10, i.e., on the end cap 12. The end cap 12 also includes a first cavity 121 with an open end, and a plurality of partition walls are provided in the first cavity 121 to divide the first cavity 121 into a plurality of regions, a portion of which forms an air guiding cavity 122, through which airflow enters the air guiding cavity 122 via the air inlet 40. One end of the first air inlet 322 on the second sealing plug 32 is connected to the air guide cavity 122, and the other end is connected to the inner cavity of the bracket 22. External airflow enters the atomization cavity 25 of the atomizing core unit 20 through the air inlet 40 and the air guide cavity 122. The aerosol formed inside the atomization cavity 25 enters the first air outlet 311 on the first sealing plug 32 through the inner cavity of the sleeve 23, and finally enters the mouthpiece 130 through the second air outlet 331 on the first liquid suction element 33 to be inhaled by the user. To prevent condensate from overflowing from the air inlet 40, a second liquid suction element 41 is provided inside the air guide cavity 122. The second liquid suction element 41 is preferably made of a material with capillary structure such as fiber cotton or sponge. The second liquid suction element 41 can fill most of the space of the air guide cavity 122, and a vent 411 is provided on the second liquid suction element 41 to avoid affecting the airflow into the atomization cavity 25. In some embodiments, a movable sliding cover 42 is provided at the air inlet end of the air inlet 40. The sliding cover 42 can be adjusted to partially block the air inlet 40 under the action of external force, thereby changing the air inlet area of ​​the air inlet 40. Alternatively, the sliding cover 42 can completely block the air inlet 40, thereby shutting off the aerosol generating device. When the user is not using the aerosol generating device, the sliding cover 42 can be operated to completely block the air inlet 40 to prevent condensate from overflowing from the air inlet 40. Alternatively, it can also prevent some abnormal accidental triggering operations, such as a child sucking or changes in external air pressure, which may cause the aerosol generating device to start.

[0053] An airflow sensor switch 43 is also fixed inside the first cavity 121 of the end cap 12. The airflow detection end of the airflow sensor switch 43 is connected to the air guide cavity 122. When the user performs an inhalation operation, the airflow detection end of the airflow sensor switch 43 can sense the negative pressure change inside the atomizing core unit 20, thereby driving the power supply 50 to provide power to the atomizing assembly 21. A charging interface 44 is also fixed on the end cap 12, and the charging interface 44 is electrically connected to the battery 50. When the battery 50 has a low capacity, the user can charge the battery 50 through the charging interface 44.

[0054] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An atomizer, characterized in that, include: A housing, and a liquid storage chamber disposed inside the housing, the liquid storage chamber being used to store a liquid matrix; An atomizing assembly includes a heating element and a liquid guiding element, wherein the heating element is used to atomize a liquid matrix to form an aerosol, and the liquid guiding element is used to transfer the liquid matrix to the heating element; A support, the support defining a receiving cavity, wherein at least a portion of the atomizing assembly is housed within the receiving cavity; The liquid guiding element includes a main body and an extension extending from the main body; the main body is wound around the inside of the receiving cavity and surrounds the heating element, the extension extends from the inside of the receiving cavity to the outside of the support and at least partially enters the liquid storage cavity; the extension is configured to transfer the liquid matrix inside the liquid storage cavity to the main body for supply to the heating element; The support is provided with a liquid guiding hole, and at least a portion of the extension surrounds at least a portion of the outer surface of the support and is able to cover the liquid guiding hole.

2. The atomizer as described in claim 1, characterized in that, The fluid guiding element is configured as a flexible, rollable sheet, and the thickness of the main body is greater than the thickness of the extension.

3. The atomizer as described in claim 1, characterized in that, The fluid guiding element is composed of several layers of capillary elements stacked together.

4. The atomizer as described in claim 3, characterized in that, The main body includes M layers of capillary elements; the extension includes N layers of capillary elements; wherein N is less than M.

5. The atomizer as described in claim 1, characterized in that, The extension includes a first extension and a second extension respectively connected to the main body.

6. The atomizer as described in claim 5, characterized in that, The first extension and the second extension extend circumferentially on the outer surface of the bracket along different circumferential directions with the longitudinal axis of the bracket as the axis, and approach each other.

7. The atomizer as described in claim 6, characterized in that, The first extension or the second extension includes a first segment and a second segment that extend continuously, the first segment being disposed around at least a portion of the outer surface of the bracket, and the second segment extending away from the outer surface of the bracket.

8. The atomizer as described in claim 6, characterized in that, The extension also includes a third extension and a fourth extension connected to the main body, the third extension and the fourth extension extending radially along the main body.

9. The atomizer as described in claim 8, characterized in that, The third extension and the fourth extension extend substantially in parallel.

10. The atomizer according to any one of claims 1-9, characterized in that, The liquid storage chamber is provided with a liquid storage element with a capillary structure, which is used to retain the liquid matrix within the liquid storage chamber.

11. The atomizer as described in claim 10, characterized in that, The extension is in contact with at least a portion of the surface of the liquid storage element.

12. The atomizer as described in claim 10, characterized in that, The liquid storage element includes a first liquid storage element and a second liquid storage element, and at least a portion of the extension is sandwiched between the first liquid storage element and the second liquid storage element.

13. The atomizer as described in claim 12, characterized in that, The extension includes a first extension section and a second extension section respectively disposed on both sides of the main body, and the first extension section and the second extension section are both sandwiched between the first liquid storage element and the second liquid storage element.

14. The atomizer as described in claim 5, characterized in that, The bracket has a first notch, and the extension extends outward from the receiving cavity through the first notch.

15. The atomizer as described in claim 14, characterized in that, The bracket is provided with a second notch; the free ends of the first extension and the free ends of the second extension converge at the second notch.

16. A replaceable atomizing core unit, characterized in that, include: An atomizing component for atomizing a liquid matrix into an aerosol, the atomizing component including a heating element and a liquid guiding element; A sleeve-shaped support defining a receiving cavity, wherein at least a portion of the atomizing component is housed within the receiving cavity; The liquid guiding element includes a body portion and an extension portion. The body portion is wound inside the receiving cavity and surrounds the heating element. The extension portion extends from inside the receiving cavity to outside the support, and the extension portion is configured to transfer a liquid matrix to the body portion for supply to the heating element. The support is provided with a liquid guiding hole, and at least a portion of the extension surrounds at least a portion of the outer surface of the support and is able to cover the liquid guiding hole.

17. An aerosol generating device, characterized in that, It includes the atomizer according to any one of claims 1-15, and a power supply assembly that provides electrical drive for the atomizer.

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