Atomizer and aerosol generating device

Abstract

The utility model provides an atomizer and an aerosol generating device, the aerosol generating device comprises a power supply assembly and an atomizer, and the power supply assembly is electrically connected with the atomizer. The atomizer comprises a shell assembly and a heating body, an air outlet channel is formed in the shell assembly, the heating body comprises a liquid guide assembly arranged in the shell assembly and a heating wire wound on the peripheral face of the liquid guide assembly, and the liquid guide assembly is used for conveying an atomizing medium to the heating wire so that the heating wire can be heated and atomized to form aerosol. The air outlet channel is used for leading out aerosol; the heating wire comprises a sparse area and a dense area, the winding density of the heating wire in the sparse area is smaller than that of the heating wire in the dense area, and the sparse area is right opposite to the air outlet channel. The heating wire is divided into the sparse area and the dense area, and the sparse area is arranged right opposite to the air outlet channel, so that the heat of the sparse area is smaller than that of the dense area after the heating wire is electrified, liquid explosion caused by heat accumulation of the heating wire in the sparse area is avoided, and the problem that liquid drops enter the oral cavity from the air outlet channel to scald the mouth is avoided.

Description

Technical Field

[0001] This application belongs to the technical field of aerosol generation, and more specifically, relates to an atomizer and an aerosol generation device. Background Art

[0002] An aerosol generation device is used to heat and atomize an atomization medium into an aerosol after being powered on, and export it through an air outlet channel for a user to inhale. An aerosol generation device generally includes an atomizer and a power supply assembly. The power supply assembly is used to supply power to the atomizer, and the atomizer heats and atomizes the atomization medium into an aerosol after being powered on. There is a type of existing atomizer in which the heating element is placed horizontally, and the central region of the atomization surface of the heating element is arranged facing the air outlet channel. Due to the heat accumulation in the central region of the heating element, liquid explosion will occur during the atomization process, and liquid droplets are likely to enter the user's mouth through the air outlet channel, causing the problem of "scalding the mouth" and affecting the user experience. Summary of the Utility Model

[0003] The purpose of the embodiments of this application is to provide an atomizer and an aerosol generation device to solve the technical problem of heat accumulation in the central region of the heating element and easy occurrence of liquid explosion in the existing technology.

[0004] To achieve the above purpose, the technical solution adopted in this application is: to provide an atomizer, including a housing assembly and a heating element. The housing assembly forms an air outlet channel. The heating element includes a liquid guiding assembly disposed in the housing assembly and a heating wire wound around the outer peripheral surface of the liquid guiding assembly. The liquid guiding assembly is used to transfer the atomization medium to the heating wire for the heating wire to heat and atomize into an aerosol. The air outlet channel is used to export the aerosol. The heating wire includes a sparse area and a dense area. The winding density of the heating wire in the sparse area is less than the winding density of the heating wire in the dense area, and the sparse area is arranged facing the air outlet channel.

[0005] In one embodiment, the liquid guiding assembly includes a support tube and a liquid guiding layer sleeved outside the support tube. The heating wire is wound around the outer peripheral surface of the liquid guiding layer. Liquid guiding holes are formed on the side wall of the support tube. The atomization medium enters the support tube from both axial ends of the support tube and is transmitted to the liquid guiding layer through the liquid guiding holes.

[0006] In one embodiment, the liquid guiding assembly is in a cylindrical shape, and the sparse area is located in the axial middle region of the liquid guiding assembly.

[0007] In one embodiment, along the axis of the liquid guiding assembly, the sparse area is located in the middle region of the heating wire, and the dense areas are respectively arranged on both opposite sides of the sparse area.

[0008] In one embodiment, the two dense areas are symmetrically arranged.

[0009] In one embodiment, the winding density of the heating wire is uniformly distributed in the dense area;

[0010] and / or, the winding density of the heating wire is uniformly distributed in the sparse area.

[0011] In one embodiment, the winding density of the heating wire in the sparse area gradually increases from the center to both sides;

[0012] and / or, the winding density of the heating wire in the dense area gradually increases from the end close to the sparse area to the end away from the sparse area.

[0013] In one embodiment, the lengths of the sparse area and the dense area are equal; the winding density ratio of the heating wire in the sparse area to the dense area ranges from 1:2 to 5:6.

[0014] In one embodiment, the lengths of the sparse area and the dense area are equal; the winding density ratio of the heating wire in the sparse area to the dense area is 2:3.

[0015] On the other hand, the present application also provides an aerosol generating device, including a power supply component and the above atomizer, and the power supply component is electrically connected to the atomizer.

[0016] The beneficial effect of the atomizer provided by the present application is that: by unevenly winding the heating wire on the liquid guiding component, including a sparse area and a dense area, and setting the sparse area opposite to the air outlet channel, wherein, since the winding density of the heating wire in the sparse area is small and the winding density of the heating wire in the dense area is large, the heat in the sparse area of the heating wire is less than the heat in the dense area after the heating wire is powered on, thereby avoiding the phenomenon of liquid explosion in the sparse area of the heating wire due to heat accumulation, avoiding the problem of "scalding the mouth" caused by liquid droplets entering the user's mouth from the air outlet channel, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the aerosol generating device provided by the embodiment of the present application;

[0019] Figure 2 It is a three-dimensional structural diagram of the atomizer provided by the embodiment of the present application;

[0020] Figure 3 It is a longitudinal sectional structural diagram of the atomizer provided by the embodiment of the present application;

[0021] Figure 4 is Figure 3 A schematic cross-sectional structure view of a heating element in an atomizer;

[0022] Figure 5 A schematic structure view of a heating element in an atomizer provided by an embodiment of the present application;

[0023] Figure 6 A schematic heat simulation view of a heating element in an atomizer provided by an embodiment of the present application;

[0024] Figure 7 A schematic view of a surface temperature distribution curve of a heating element;

[0025] Figure 8 A schematic structure view of a heating element in an atomizer provided by another embodiment of the present application;

[0026] Figure 9 A schematic heat simulation view of a heating element in an atomizer provided by another embodiment of the present application;

[0027] Figure 10 A schematic structure view of a heating element in the prior art;

[0028] Figure 11 A schematic heat simulation view of a heating element in the prior art.

[0029] Among them, each reference numeral in the figure:

[0030] 1. Atomizer; 100. Housing assembly; 110. Main housing; 111. Inner housing; 112. Outer housing; 113. Air outlet channel; 114. Liquid storage cavity; 120. Atomization seat; 121. Upper atomization seat; 122. Lower atomization seat; 123. Atomization cavity; 124. Liquid inlet channel; 125. Liquid inlet; 126. Air outlet; 127. Air inlet; 130. Sealing sleeve; 140. Electrode; 150. Bottom cover; 200. Heating element; 210. Liquid guiding assembly; 211. Support tube; 2111. Liquid guiding channel; 2112. Liquid guiding hole; 212. Liquid guiding layer; 213. Atomization surface; 214. Liquid inlet surface; 220. Heating wire; 221. Sparse area; 222. Dense area; 2. Power supply assembly; Z. Longitudinal direction. Detailed implementation manners

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] There is an existing atomizer, which includes a heating element, an atomizing seat and a main shell. The main shell is formed with a liquid storage chamber and an air outlet channel. The atomizing seat is installed in the main shell. The atomizing seat is formed with an atomizing chamber. The heating element is placed horizontally in the atomizing chamber. A liquid guide channel is formed in the center of the heating element. The inner peripheral wall of the heating element is a liquid guide surface, and the outer peripheral wall of the heating element is an atomizing surface. The axial ends of the heating element are respectively connected to the liquid storage chamber to allow the atomizing medium to enter the liquid guide channel. The axial center area of ​​the atomizing surface of the heating element is arranged opposite to the air outlet channel, and the aerosol generated at the atomizing surface is discharged through the air outlet channel. However, due to the heat accumulation in the central area of ​​the heating element, liquid explosion will occur in the process of the heating element heating and atomizing the atomizing medium. Liquid droplets are easy to enter the user's mouth from the air outlet channel arranged opposite to the axial center area of ​​the atomizing surface, causing a "hot mouth" problem, affecting the user's experience.

[0036] In order to solve the above problems, the embodiment of the present application provides an atomizer 1 and an aerosol generating device. By dividing the heating wire 220 into a sparse area 221 and a dense area 222, and setting the sparse area 221 of the heating wire 220 corresponding to the air outlet channel 113, the problem of heat accumulation at the position where the heating element 200 is facing the air outlet channel 113 can be relatively reduced, and the heating element 200 can be prevented from exploding during the process of heating and atomizing the atomizing medium, and the problem of droplets easily entering the user's mouth from the air outlet channel 113 and causing a "burning mouth" problem can be avoided, thereby improving the user experience.

[0037] See alsoFigure 1 Now, the aerosol generating device provided by the embodiments of the present application will be described. The aerosol generating device includes a power supply assembly 2 and an atomizer 1. The power supply assembly 2 is electrically connected to the atomizer 1. The power supply assembly 2 is used to supply power to the atomizer 1. The atomizer 1 is used to heat and atomize the atomization medium into aerosol particles after being powered on, and convey the generated aerosol particles to the user's mouth.

[0038] Among them, the power supply assembly 2 can be mechanically connected to the atomizer 1 to support the atomizer 1 through the power supply assembly 2. Specifically, the power supply assembly 2 and the atomizer 1 are distributed longitudinally along the aerosol generating device and are detachably connected to each other. It can be understood that in other embodiments of the present application, the power supply assembly 2 and the atomizer 1 may not form a mechanical connection and are independently arranged.

[0039] Please refer to Figures 2 to 5 Now, the atomizer 1 provided by the embodiments of the present application will be described. The atomizer 1 includes a housing assembly 100 and a heating element 200. The housing assembly 100 is formed with an air outlet channel 113. The heating element 200 includes a liquid guiding assembly 210 disposed in the housing assembly 100 and a heating wire 220 wound around the outer peripheral surface of the liquid guiding assembly 210. The liquid guiding assembly 210 is used to convey the atomization medium to the heating wire 220 for the heating wire 220 to heat and atomize to form aerosol. The air outlet channel 113 is used to export the aerosol; the heating wire 220 includes a sparse area 221 and a dense area 222, and the sparse area 221 is disposed opposite to the air outlet channel 113.

[0040] Among them, the liquid guiding assembly 210 is used to absorb and store the atomization medium and convey the atomization medium to the heating wire 220. The heating wire 220 is used to be directly or indirectly electrically connected to the power supply assembly 2. The heating wire 220 generates heat after being powered on to atomize the atomization medium in the liquid guiding assembly 210 to form aerosol, that is, aerosol is formed on the atomization surface 213 of the liquid guiding assembly 210. The aerosol is exported through the air outlet channel 113 for the user to inhale.

[0041] In addition, the heating wire 220 is wound around the outer peripheral surface of the liquid guiding assembly 210. The heating wire 220 is divided into a sparse area 221 and a dense area 222 according to the winding density of the heating wire 220. Among them, the winding density of the sparse area 221 is less than that of the dense area 222.

[0042] In the atomizer 1 according to the embodiment of the present application, by unevenly winding the heating wire 220 on the liquid guiding component 210, including a sparse area 221 and a dense area 222, and setting the sparse area 221 opposite to the air outlet channel 113. Wherein, since the winding density of the heating wire 220 in the sparse area 221 is small and the winding density of the heating wire 220 in the dense area 222 is large, the heat of the heating wire 220 in the sparse area 221 is less than that in the dense area 222 after the heating wire 220 is powered on, thereby avoiding the phenomenon of liquid explosion in the sparse area 221 of the heating wire 220 due to heat accumulation, preventing liquid droplets from entering the user's mouth through the air outlet channel 113 and causing the problem of "scalding the mouth", and improving the user experience.

[0043] In one embodiment, please refer to Figure 3 , the heating element 200 is arranged horizontally in the housing assembly 100, and the air outlet channel 113 extends along the longitudinal direction Z of the atomizer 1. And along the longitudinal direction Z, the air outlet channel 113 is located above the liquid guiding component 210, and the axis of the liquid guiding component 210 intersects perpendicularly with the extension line of the axis of the air outlet channel 113. The sparse area 221 of the heating wire 220 on the liquid guiding component 210 is vertically opposite to the air outlet channel 113.

[0044] Wherein, it should be noted that the longitudinal direction Z here refers to the height direction of the atomizer 1 when the atomizer 1 is placed, or a direction forming an angle with the height direction of the atomizer 1. The horizontal direction here refers to a direction perpendicular to the longitudinal direction Z of the atomizer 1. When the aerosol is generated on the atomizing surface 213 of the heating element 200, it can be carried out by the airflow flowing longitudinally for the user to inhale, and the airflow is smooth.

[0045] It can be understood that in other embodiments of the present application, the axis of the air outlet channel 113 and the axis of the liquid guiding component 210 may not be perpendicular either, for example, the included angles are 89 degrees, 80 degrees, 75 degrees, etc., and there is no unique limitation here.

[0046] In one embodiment, please refer to Figure 5, the liquid guiding component 210 is cylindrical, and the sparse area 221 is located in the axial middle area of the liquid guiding component 210. That is, along the axis of the liquid guiding component 210, the middle surface of the liquid guiding component 210 coincides with the middle surface of the air outlet channel 113, and the middle area of the liquid guiding component 210 along the axis is arranged opposite to the air outlet channel 113. In the prior art, the heating wire 220 is evenly wound around the liquid guiding component 210. When the heating wire 220 is powered on and heated, although the heating wire 220 is heated evenly everywhere, since the positions of the heating wire 220 corresponding to both ends of the liquid guiding component 210 are convenient for heat dissipation, while the heat dissipation of the heating wire 220 corresponding to the axial middle of the liquid guiding component 210 is difficult, it is easy to cause heat accumulation in the middle area of the heating wire 220 and easy to occur the phenomenon of liquid explosion. In this embodiment, by arranging the sparse area 221 of the heating wire 220 in the axial middle area of the liquid guiding component 210, that is, making the heating in the axial middle area of the liquid guiding component 210 smaller, so that even if the heat dissipation in the middle area is slower, it can also make the heat distribution of the entire liquid guiding component 210 uniform along the axis and no liquid explosion phenomenon will occur. It can be understood that in other embodiments of the present application, according to the actual design situation and specific requirements, the sparse area 221 can also be slightly deviated from the axial middle area of the liquid guiding component 210, and there is no unique limitation here.

[0047] In one embodiment, please refer to Figure 5 , along the axis of the liquid guiding component 210, the sparse area 221 is located in the middle area of the heating wire 220, and the dense areas 222 are respectively arranged on the opposite sides of the sparse area 221. When the heating wire 220 is powered on, the heat generation of the sparse area 221 is relatively smaller than that of the dense areas 222 on both sides, but the heat dissipation of the dense areas 222 on both sides is less than that of the sparse area 221, and finally the heat of each part of the entire heating wire 220 along the axis tends to be uniform, avoiding the phenomenon of liquid explosion due to heat concentration in the sparse area 221.

[0048] In one embodiment, please refer to Figure 5, along the axial direction of the liquid guiding component 210, the hydrophobic region 221 is located in the middle region of the liquid guiding component 210, and the hydrophobic region 221 is located in the middle region of the heating wire 220. Dense regions 222 are respectively provided on the opposite sides of the hydrophobic region 221. In other words, the heating wire 220 is arranged in a centered manner relative to the liquid guiding component 210, and the axial middle plane of the heating wire 220 coincides with the axial middle plane of the liquid guiding component 210, so that the hydrophobic region 221 in the axial middle region of the heating wire 220 is just located in the axial middle region of the liquid guiding component 210, and the hydrophobic region 221 is arranged facing the air outlet channel 113, so that the entire liquid guiding component 210 generates heat evenly along the axial direction, the atomization degree of the atomization medium by the heating body 200 is uniform, and the absorption taste consistency is good. It can be understood that in other embodiments of the present application, it may be that the hydrophobic region 221 is located in the axial middle region of the heating wire 220, but the hydrophobic region 221 is not located in the axial middle region of the liquid guiding component 210; or, the hydrophobic region 221 is located in the axial middle region of the liquid guiding component 210, but the hydrophobic region 221 is not located in the axial middle region of the heating wire 220, as long as it is ensured that the hydrophobic region 221 faces the air outlet channel 113.

[0049] In one embodiment, please refer to Figure 5 , the two dense regions 222 are symmetrically arranged relative to the hydrophobic region 221, that is, the winding density of the heating wire 220 in the two dense regions 222 is equal, and the axial lengths of the two dense regions 222 are equal. With such an arrangement, the heat generation capacity and heat dissipation capacity of the two dense regions 222 are the same, and a hydrophobic region 221 with an appropriate length is arranged in the middle, so as to ensure that the heat distribution of the entire heating wire 220 is uniform, and further make the atomization effect of the liquid guiding component 210 on the atomization medium the same. In other embodiments of the present application, it may also be that the winding density of the heating wire 220 in the two dense regions 222 is the same but the axial lengths are different, or the axial lengths of the heating wire 220 in the two dense regions 222 are the same but the winding densities are different, and no unique limitation is made here.

[0050] In one embodiment, please refer to Figure 5 , the winding density distribution of the heating wire 220 in the dense region 222 is uniform, and the winding density distribution of the heating wire 220 in the hydrophobic region 221 is uniform. With such an arrangement, not only can the heat of the entire heating wire 220 tend to be uniform along the axial direction, but also the structure winding of the heating wire 220 is simple. It can be understood that in other embodiments of the present application, the winding density of the heating wire 220 in the dense region 222 and the hydrophobic region 221 may also be non-uniformly distributed, and no unique limitation is made here.

[0051] In another embodiment of the present application, the winding density of the heating wire 220 in the sparse area 221 gradually increases from the center to both sides; the winding density of the heating wire 220 in the dense area 222 gradually increases from the end close to the sparse area 221 to the end away from the sparse area 221. The maximum winding density of the heating wire 220 in the sparse area 221 is less than or equal to the minimum winding density of the heating wire 220 in the dense area 222. For example, when the maximum winding density of the heating wire 220 in the sparse area 221 is equal to the minimum winding density of the heating wire 220 in the dense area 222, the winding density of the entire heating wire 220 is gradually decreased from the center to both ends, so that the heat generation of the entire heating wire 220 gradually increases from the middle to both ends, and the heat dissipation capacity gradually decreases from both sides to the center, so that the heat of the heating wire 220 tends to be uniform along the axis. Another example is that when the maximum winding density of the heating wire 220 in the sparse area 221 is less than the minimum winding density of the heating wire 220 in the dense area 222, it is also possible to make the heat in the sparse area 221 be evenly distributed as much as possible with the winding density in the dense area 222.

[0052] In another embodiment of the present application, the winding density of the heating wire 220 in the sparse area 221 gradually increases from the center to both sides, and the winding density of the heating wire 220 in the dense area 222 is evenly distributed. In addition, it may also be that the winding density of the heating wire 220 in the sparse area 221 is evenly distributed, while the winding density of the heating wire 220 in the dense area 222 gradually increases from the end close to the sparse area 221 to the end away from the sparse area 221. It is mainly set according to the actual heat generation requirements of the heating wire 220.

[0053] In one embodiment, please refer to Figure 5 , the length of the sparse area 221 is equal to the length of the dense area 222, that is, the heating wire 220 is divided into three equal lengths, where the middle section is the sparse area 221 and the two sides are the dense areas 222.

[0054] It should be noted that the length of the sparse area 221 here refers to the length of the sparse area 221 along the axis of the liquid guiding component 210, and the length of the dense area 222 here refers to the length of the dense area 222 along the axis of the liquid guiding component 210.

[0055] In one embodiment, please refer to Figure 5, the winding density ratio of the heating wire 220 in the sparse area 221 to the dense area 222 ranges from 1:2 to 5:6. Specifically, the winding density ratio of the heating wire 220 in the dense area 222 to the sparse area 221 can be 1:2, 7:12, 8:12, 9:12, or 10:12, etc. Among them, according to the heating principle and heat dissipation principle of the heating wire 220, it can be known that the winding density of the sparse area 221 of the heating wire 220 is related to the heating degree of the sparse area 221. When the winding density of the heating wire 220 in the sparse area 221 is too large, the heat in the sparse area 221 will be relatively large, and the phenomenon of liquid explosion is likely to occur; while when the winding density of the heating wire 220 in the sparse area 221 is too small, it will cause the heat in the sparse area 221 to be much smaller than the heat in the dense area 222, ultimately resulting in uneven heating of the entire heating wire 220. Therefore, in this embodiment, the winding density ratio of the heating wire 220 in the sparse area 221 and the dense area 222 is limited.

[0056] In one embodiment, please refer to Figure 5 , the length of the sparse area 221 is equal to the length of the dense area 222, and the winding density ratio of the heating wire 220 in the sparse area 221 to the dense area 222 is 2:3. Please refer to Figure 6 , for Figure 5 the heat simulation diagram of each part on the heating body 200 in Figure 10 and Figure 11 , which are respectively the structural schematic diagram of the heating body 200 and the heat simulation diagram of each part of the heating body 200 when the heating wire 220 is evenly distributed in the prior art. Please refer to Figure 7 , which is the surface temperature distribution curve of the heating body 200. Among them, the horizontal axis is the axial position coordinate of the heating body 200, and the vertical axis is the surface distribution corresponding to each axial position coordinate of the heating body 200. In addition, curve 2 represents the surface temperature distribution curve of the heating body 200 when the winding density ratio of the heating wire 220 in the sparse area 221 to the dense area 222 is 2:3. Curve 0 represents the surface temperature distribution curve of the heating body 200 when the winding density ratio of the heating wire 220 in the sparse area 221 to the dense area 222 is 1:1 in the prior art. It can be seen from the figure that when the winding density ratio of the heating wire 220 in the dense area 222 to the sparse area 221 is 1:1, the heat in the corresponding axial middle area of the heating body 200 is much higher than the temperature on both sides, and the phenomenon of liquid explosion is likely to occur. While when the winding density ratio of the heating wire 220 in the sparse area 221 to the dense area 222 is 2:3, the heat in each area of the heating body 200 along the axis tends to be evenly distributed, which can alleviate or even avoid the phenomenon of liquid explosion.

[0057] In another embodiment of the present application, please refer to Figure 8 and Figure 9 , the length of the sparse area 221 is equal to the length of the dense area 222, and the winding density ratio of the heating wire 220 in the sparse area 221 to the dense area 222 is 1:3. Please refer to Figure 7Curve 1 represents the surface temperature distribution curve of the heating element 200 when the winding density ratio of the heating wire 220 in the sparse area 221 and the dense area 222 is 1:3. It can be seen that when the winding density of the heating wire 220 in the sparse area 221 is much smaller than the winding density of the heating wire 220 in the dense area 222, the heat of the sparse area 221 of the heating element 200 is too small, which will also cause uneven heating of the heating element 200, resulting in poor heating and atomization effect of the sparse area 221 of the heating element 200 on the atomization medium, resulting in inconsistent taste of the user, but no liquid explosion phenomenon will occur here.

[0058] In addition, in other embodiments of the present application, when the length of the sparse area 221 is not equal to the length of the dense area 222, the winding density ratio range of the corresponding heating wire 220 in the sparse area 221 and the dense area 222 will also change accordingly, as long as the effect of ultimately making the heating wire 220 generate heat evenly along the axial direction is met.

[0059] In one embodiment, see Figure 3 The housing assembly 100 is also formed with a liquid storage chamber 114 and an atomizing chamber 123. The liquid storage chamber 114 is used to store the atomizing medium. The liquid guide assembly 210 is transversely arranged in the atomizing chamber 123. A liquid guide channel 2111 is formed at the center of the liquid guide assembly 210. The opposite ends of the liquid guide channel 2111 are respectively connected to the liquid storage chamber 114. The inner peripheral surface of the liquid guide assembly 210 is the liquid inlet surface 214, and the outer peripheral surface of the liquid guide assembly 210 is the atomizing surface 213. The atomizing medium in the liquid storage chamber 114 enters the liquid guide assembly 210 through the liquid guide channel 2111. The liquid guide assembly 210 absorbs and stores the atomizing medium. When the power supply assembly 2 supplies power to the heating wire 220, the heating wire 220 generates heat and heats the atomizing medium on the outer peripheral surface of the liquid guide assembly 210 to atomize and form an aerosol. The aerosol is carried by the external gas and is discharged through the gas outlet channel 113 for the user to inhale.

[0060] In one embodiment, see Figure 3, the housing assembly 100 includes a main housing 110 and an atomizing base 120. The main housing 110 is formed with a liquid storage cavity 114 and an air outlet passage 113. The liquid storage cavity 114 surrounds the outer periphery of the air outlet passage 113. The atomizing base 120 is installed in the main housing 110. An atomizing cavity 123 is formed in the atomizing base 120. At the top of the atomizing cavity 123, a liquid inlet passage 124 communicating with the liquid storage cavity 114 is formed. At the top of the atomizing cavity 123, an air outlet 126 communicating with the air outlet passage 113 is further formed. The liquid guiding assembly 210 is horizontally disposed in the atomizing cavity 123. At positions corresponding to the opposite ends of the liquid guiding assembly 210 on the atomizing base 120, liquid inlet ports 125 are respectively formed. The two liquid inlet ports 125 are respectively communicated with the two liquid inlet passages 124. The opposite ends of the liquid guiding assembly 210 respectively block the corresponding liquid inlet ports 125. The atomizing medium in the liquid storage cavity 114 respectively flows from the two liquid inlet passages 124 to the opposite ends of the liquid guiding assembly 210 and enters the liquid guiding channels 2111. The air outlet 126 is correspondingly arranged with the air outlet passage 113, and the air outlet 126 faces the sparse area 221 of the heating wire 220.

[0061] In one embodiment, please refer to Figure 3 , the atomizing base 120 includes an upper atomizing base 121 and a lower atomizing base 122. The upper atomizing base 121 and the lower atomizing base 122 are relatively buckled and enclosed to form the atomizing base 120. The liquid inlet ports 125, the liquid inlet passages 124 and the air outlet 126 are all formed in the upper atomizing base 121. The upper atomizing base 121 and the lower atomizing base 122 jointly enclose to form the atomizing cavity 123. An air inlet 127 is formed on the lower atomizing base 122, and two electrodes 140 are installed on the lower atomizing base 122. The two electrodes 140 are respectively electrically connected to the opposite ends of the heating wire 220, and the two electrodes 140 are used to be respectively electrically connected to the power supply assembly 2 to supply power to the heating wire 220.

[0062] In one embodiment, please refer to Figure 3, the housing assembly 100 further includes a sealing sleeve 130. The sealing sleeve 130 is sleeved on the atomizing base 120 and abuts between the atomizing base 120 and the sealing sleeve 130. The sealing sleeve 130 is used to form the seal of the liquid storage cavity 114, and the sealing sleeve 130 is used to form the sealed connection between the air outlet channel 113 and the air outlet 126. Specifically, the main housing 110 includes an inner housing 111 and an outer housing 112. The top ends of the inner housing 111 and the outer housing 112 are integrally connected. The inner housing 111 encloses to form the air outlet channel 113. A liquid storage cavity 114 is formed by enclosing between the inner peripheral surface of the outer housing 112 and the outer peripheral surface of the inner housing 111. The atomizing base 120 is installed in the inner cavity of the outer housing 112 and axially abuts against the inner housing 111. The sealing sleeve 130 is sleeved on the top and outer periphery of the atomizing base 120. The sealing sleeve 130 abuts between the inner peripheral wall of the outer housing 112 and the outer peripheral wall of the atomizing base 120 to form a sealed connection. The sealing sleeve 130 abuts between the inner housing 111 and the atomizing base 120 at the air outlet 126 to form the sealed communication between the air outlet 126 and the air outlet channel 113.

[0063] In one embodiment, please refer to Figure 2 and Figure 3 , the housing assembly 100 further includes a bottom cover 150. The bottom cover is sleeved on the outer side of the bottom of the lower atomizing base 122, and the bottom cover 150 is snap-connected to the outer housing 112 of the main housing 110.

[0064] In one embodiment, please refer to Figure 5 , the liquid guiding assembly 210 includes a support tube 211 and a liquid guiding layer 212. The support tube 211 is cylindrical. The liquid guiding layer 212 is sleeved on the outside of the support tube 211. The heating wire 220 is wound around the outer peripheral surface of the liquid guiding layer 212. Among them, a liquid guiding channel 2111 is formed in the support tube 211. A liquid guiding hole 2112 is further formed on the side wall of the support tube 211. The liquid guiding hole 2112 is communicated with the liquid guiding channel 2111. The liquid guiding hole 2112 is used to transmit the atomizing medium in the liquid guiding channel 2111 to the liquid guiding layer 212. The liquid guiding layer 212 is a porous structure and is used to absorb and transport the atomizing medium. The atomizing medium in the liquid storage cavity 114 enters the liquid guiding channel 2111 through the axial two ends of the support tube 211, and enters the liquid guiding layer 212 through the liquid guiding hole 2112. The heating wire 220 heats to heat and atomize the atomizing medium in the liquid guiding layer 212 to form an aerosol.

[0065] In one embodiment, the support tube 211 is made of a metal material. In this way, it is convenient to control the size of the support tube 211 during the manufacturing process. The metal material can control better dimensional accuracy and error during the processing, resulting in higher processing accuracy. For example, it can be made very thin. At the same time, the metal material itself has certain heat conduction performance, which can improve the atomization efficiency of the heating component. That is, the support tube 211 made of metal material has the functions of support, liquid conduction, and heat conduction at the same time. It can be understood that in other embodiments of the present application, the support tube 211 can also be made of other materials. For example, it can be made of stainless steel, aluminum alloy, or brass alloy, or the support tube 211 can also be made of any one of borosilicate glass, quartz glass, or photosensitive lithium aluminosilicate glass.

[0066] In one embodiment, the liquid guiding layer 212 can be made of a cotton core. In other embodiments, the liquid guiding layer 212 can also be made of a ceramic material.

[0067] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An atomizer, characterized in that: It includes a shell component and a heating element, the shell component is formed with an air outlet channel, the heating element includes a liquid guiding component arranged in the shell component and a heating wire wound on the outer peripheral surface of the liquid guiding component, the liquid guiding component is used to transmit the atomization medium to the heating wire so that the heating wire is heated and atomized to form an aerosol, and the air outlet channel is used to guide the aerosol; the heating wire includes a sparse area and a dense area, the winding density of the heating wire in the sparse area is less than the winding density of the heating wire in the dense area, and the sparse area is arranged directly opposite to the air outlet channel.

2. The atomizer according to claim 1, characterized in that The liquid guide component includes a support tube and a liquid guide layer sleeved outside the support tube, and the heating wire is wound around the outer peripheral surface of the liquid guide layer; the side wall of the support tube is formed with a liquid guide hole, and the atomized medium enters the support tube from both axial ends of the support tube and is transmitted to the liquid guide layer through the liquid guide hole.

3. The atomizer according to claim 1 or 2, characterized in that: The liquid guiding component is cylindrical, and the sparse area is located in the axial middle area of ​​the liquid guiding component.

4. The atomizer according to claim 3, characterized in that Along the axial direction of the liquid guiding component, the sparse area is located in the middle area of ​​the heating wire, and the dense areas are respectively arranged on two opposite sides of the sparse area.

5. The atomizer according to claim 4, characterized in that The two dense areas are symmetrically arranged.

6. The atomizer according to claim 4, characterized in that The winding density of the heating wire in the dense area is evenly distributed; And / or, the winding density of the heating wire in the sparse area is evenly distributed.

7. The atomizer according to claim 4, characterized in that The winding density of the heating wire in the sparse area gradually increases from the center to both sides; And / or, the winding density of the heating wire in the dense area gradually increases from an end close to the sparse area to an end away from the sparse area.

8. The atomizer according to claim 4, characterized in that The lengths of the sparse area and the dense area are equal; and the winding density ratio of the heating wire in the sparse area and the dense area is in the range of 1:2-5:

6.

9. The atomizer according to claim 4, characterized in that The lengths of the sparse area and the dense area are equal; and the winding density ratio of the heating wire in the sparse area and the dense area is 2:

3.

10. An aerosol generating device, characterized in that: It comprises a power supply assembly and the atomizer according to any one of claims 1 to 9, wherein the power supply assembly is electrically connected to the atomizer.

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