Filter assembly and aerosol-generating device

Abstract

The present application relates to the field of aerosol generation, and discloses a filter assembly, comprising a filter body, an atomizing core and a heat-conducting member; the filter body is provided with a liquid storage cavity and a suction passage, the suction passage comprises a cooling passage section, the atomizing core is connected to the filter body, the atomizing core is internally provided with a first passage, the atomizing core is externally provided with a second passage, the atomizing core is provided with a permeation hole, the permeation hole communicates the first passage and the second passage, one of the first passage and the second passage is a liquid guiding passage, and the other is an atomizing passage, the liquid guiding passage communicates with the liquid storage cavity, the atomizing passage communicates with the suction passage, and the heat-conducting member is arranged around the atomizing passage or located in the atomizing passage. After the filter body is connected to a main machine of an aerosol generating device, smoke enters the atomizing passage from a heating pipe of the main machine, adjusting liquid in the liquid storage cavity enters the liquid guiding passage, permeates into the atomizing passage, the heat-conducting member absorbs heat of the heating pipe, heats the adjusting liquid in the atomizing passage, the temperature of the heat-conducting member is higher than that of the smoke, and the atomizing efficiency of the adjusting liquid is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerosol generation, in particular to a filter assembly and an aerosol generating device. BACKGROUND

[0002] Cigarette smoke contains harmful substances such as tar, and long-term inhalation of these harmful substances can be harmful to the human body. In order to overcome the harmful substances generated by cigarette combustion, an aerosol generating device appears, which reduces the harm of cigarettes by heating without combustion.

[0003] However, the current aerosol generating device has low regulation liquid atomization efficiency, slow regulation liquid penetration, and less generated smoke. SUMMARY

[0004] The embodiments of the present application aim to provide a filter assembly and an aerosol generating device to solve the technical problem of low regulation liquid atomization efficiency in the prior art.

[0005] The embodiments of the present application solve the technical problem by adopting the following technical scheme: a filter assembly is provided, which comprises a filter body, an atomization core and a heat conducting member; the filter body is provided with a liquid storage cavity and a suction passage, the suction passage comprises a cooling passage section, the atomization core is connected to the filter body, the atomization core is provided with a first passage, the atomization core is provided with a second passage around the periphery, the atomization core is provided with a penetration hole, the penetration hole communicates the first passage and the second passage, one of the first passage and the second passage is a liquid guiding passage, and the other is an atomization passage, the liquid guiding passage communicates with the liquid storage cavity, the atomization passage communicates with the suction passage, and the heat conducting member is arranged around the atomization passage or located in the atomization passage.

[0006] In some embodiments, the first passage is a liquid guiding passage, and the second passage is an atomization passage; the filter body comprises a sleeving portion, the heat conducting member is sleeved in the sleeving portion; a part of the atomization core protrudes into the sleeving portion, and forms one section of the second passage with the sleeving portion; another part of the atomization core is exposed from the sleeving portion and located in the heat conducting member, and the atomization core and the heat conducting member form another section of the second passage.

[0007] In some embodiments, one of the heat conducting member and the atomization core is provided with a protrusion towards the other.

[0008] In some embodiments, the protrusion has at least two, and the at least two protrusions are arranged in a circumferential direction and are spaced apart, and a recess is formed between each adjacent two protrusions.

[0009] In some embodiments, the heat-conducting member is provided with the protrusion towards the atomizing core, and the position of the protrusion is opposite to the position of the part of the atomizing core exposed to the sleeve connecting part; or the atomizing core is provided with the protrusion towards the heat-conducting member, and the protrusion is located at the part of the atomizing core exposed to the sleeve connecting part.

[0010] In some embodiments, the first channel is a liquid guiding channel, and the second channel is an atomizing channel; the heat-conducting member is connected to the filter body; and at least one section of the second channel is formed between the heat-conducting member and the atomizing core.

[0011] In some embodiments, the liquid storage cavity is arranged at one axial side of the atomizing core; and the suction channel is arranged at one side of the liquid storage cavity along the radial direction of the atomizing core.

[0012] In some embodiments, the first channel has an opening arranged at one end surface of the atomizing core close to the liquid storage cavity for communicating with the liquid storage cavity, and the other end surface of the atomizing core away from the liquid storage cavity closes the first channel.

[0013] In some embodiments, the first channel is an atomizing channel, and the second channel is a liquid guiding channel; the second channel is formed between the atomizing core and the filter body; and the heat-conducting member is arranged in the first channel.

[0014] In some embodiments, the atomizing core is made of porous material.

[0015] To solve the technical problems, the embodiments of the present application further adopt the following technical solutions: an aerosol generating device is provided, which comprises a main machine and a filter assembly as described above; the filter body is connected to the main machine, and the main machine comprises a heating pipe, the heat-conducting member is at least partially arranged in the heating pipe, and / or connected to the heating pipe.

[0016] To solve the technical problems, the embodiments of the present application further adopt the following technical solutions: an aerosol generating device is provided, which comprises a main machine and a filter assembly; the main machine comprises a heating pipe and a heat-conducting member, and the heat-conducting member is fixedly connected to the heating pipe; the filter assembly comprises a filter body and an atomizing core; the filter body is provided with a liquid storage cavity and a suction channel, the suction channel comprises a cooling channel section, the atomizing core is connected to the filter body, the atomizing core is provided with a first channel, the atomizing core is provided with a second channel in the outer periphery thereof, the atomizing core is provided with a permeation hole, the permeation hole communicates the first channel and the second channel, one of the first channel and the second channel is a liquid guiding channel, and the other is an atomizing channel, the liquid guiding channel communicates with the liquid storage cavity, and the atomizing channel communicates with the suction channel; the filter body is connected to the main machine; and the heat-conducting member is arranged around the atomizing channel or in the atomizing channel.

[0017] Compared with the prior art, in the filter assembly and the aerosol generating device provided by the embodiments of the present application, in use, the filter body is connected to the main machine of the aerosol generating device, the smoke enters the atomization channel from the heating pipe of the main machine, the adjusting liquid in the liquid storage cavity enters the liquid guide channel, the adjusting liquid in the liquid guide channel permeates into the atomization channel, the heat conduction piece absorbs the heat emitted by the heating pipe to heat the adjusting liquid in the atomization channel, so that the adjusting liquid is atomized, and since the temperature of the heat conduction piece is higher than that of the smoke, and the heat conduction piece and the smoke entering the atomization channel heat the adjusting liquid at the same time, the atomization efficiency of the adjusting liquid is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] One or more embodiments are illustrated by way of example in the figures that are part of this disclosure and which are illustrative, but not restrictive, of the embodiments, wherein elements having the same reference number designates like elements throughout the various figures, and wherein the figures are not necessarily drawn to scale. The figures illustrate various embodiments of the present application.

[0019] Figure 1 A structural schematic diagram of an aerosol generating device according to one embodiment of the present application is shown in the figure.

[0020] Figure 2 A structural schematic diagram of a filter assembly of the aerosol generating device shown in the figure. Figure 1

[0021] Figure 3 A structural schematic diagram of the internal structure of the filter assembly shown in the figure. Figure 2

[0022] Figure 4 A structural schematic diagram of the internal structure of the aerosol generating device shown in the figure. Figure 5 Figure 1 A structural schematic diagram of the filter assembly shown in the figure from another angle.

[0023] Figure 6 Figure 2 A structural schematic diagram of the heat conduction piece of the filter assembly shown in the figure.

[0024] Figure 7 A structural schematic diagram of the filter assembly shown in the figure. Figure 2

[0025] A disassembled schematic diagram of the filter assembly shown in the figure, in which the heat conduction piece of the filter assembly is disassembled. Figure 8 Figure 2 A structural schematic diagram of the internal structure of the filter assembly near the sleeve joint shown in the figure.

[0026] Figure 9 Figure 2 A structural schematic diagram of the internal structure of the aerosol generating device according to some other embodiments.

[0027] Figure 10 to Figure 12 A structural schematic diagram of the internal structure of the aerosol generating device according to some other embodiments. ​​​​​​

[0028] Figure 13 for Figure 2 exploded view of the filter assembly shown in FIG. 1;

[0029] Figure 14 for Figure 2 schematic view of the internal structure of the filter assembly shown in FIG. 2 from another angle;

[0030] Figure 15 and Figure 16 schematic view of the internal structure of an aerosol generating device according to some other embodiments, in which the heat conducting member of the aerosol generating device is provided inside the atomizing core. DETAILED DESCRIPTION

[0031] 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 embodiments. It should be noted that when an element is described as being "connected" to another element, it can be directly on the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "left", "right", "top", "bottom", "top", "bottom", and the like used in the specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0032] Unless otherwise defined, all technical and scientific terms used in the specification have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0033] The regulating liquid is atomized by smoke, and since the heat capacity of air is poor, the temperature of the smoke when it is transferred to the atomizing channel is not enough, resulting in insufficient atomization of the regulating liquid, less mist generated, and lower atomization efficiency.

[0034] In view of this, please refer to Figure 1 to Figure 3 , Figure 1 schematic view of the structure of an aerosol generating device according to one embodiment of the present application; Figure 2 schematic view of the structure of an aerosol generating device according to one embodiment of the present application; Figure 1 schematic view of the filter assembly of the aerosol generating device shown in FIG. 1; Figure 3 schematic view of the filter assembly of the aerosol generating device shown in FIG. 1; Figure 2The diagram shows the internal structure of the filter assembly. This embodiment of the invention provides a filter assembly 100 for use in an aerosol generating device 200. The filter assembly 100 includes a filter body 10, an atomizing core 20, and a heat-conducting component 30. The filter body 10 has a suction channel 102 and a liquid storage chamber 104. The suction channel 102 includes a cooling channel section 1022. The atomizing core 20 has a first channel 202 inside and a second channel 204 on its outer periphery. The atomizing core 20 has permeation holes that connect the first channel 202 and the second channel 204. The first channel 202 is a liquid guiding channel, and the second channel 204 is an atomization channel. The liquid guiding channel connects to the liquid storage chamber 104, and the atomization channel connects to the suction channel 102. The heat-conducting component 30 is arranged around the atomization channel.

[0035] It is understood that in some other embodiments, the first channel 202 may also be an atomizing channel and the second channel 204 may also be a liquid guiding channel. Therefore, as long as one of the first channel 202 and the second channel 204 is a liquid guiding channel and the other is an atomizing channel, the function of the filter assembly 100 can be realized.

[0036] It is understood that in some other embodiments, the heat-conducting element 30 may also be disposed within the atomization channel. Therefore, as long as the heat-conducting element 30 is disposed around the atomization channel or located within the atomization channel, the function of the filter assembly 100 can be realized.

[0037] Please see Figure 4 and Figure 5 , Figure 4 and Figure 5 for Figure 1 The diagram shows the internal structure of the aerosol generating device. In use, the filter body 10 is connected to the main unit 210 of the aerosol generating device 200. The main unit 210 includes a heating tube 230, which heats the cigarette to generate smoke. The smoke enters the atomization channel, and the conditioning liquid in the liquid storage chamber 104 enters the liquid guiding channel. The conditioning liquid in the liquid guiding channel permeates into the atomization channel, where it is atomized and mixes with the smoke to form a mixture, which is finally discharged through the suction channel 102. The heat-conducting element 30 absorbs the heat emitted by the heating tube 230, heating the conditioning liquid in the atomization channel, thus atomizing it. Because the temperature of the heat-conducting element 30 is higher than that of the smoke, the atomization efficiency of the conditioning liquid is improved. Furthermore, the smoke carrying some heat into the atomization channel can also heat the conditioning liquid, causing it to atomize. In summary, the heat-conducting element 30 and the smoke can simultaneously heat the conditioning liquid in the atomization channel, resulting in high atomization efficiency.

[0038] The suction channel 102 includes a cooling channel section 1022. When the mixture passes through the cooling channel section 1022, the temperature of the mixture decreases, thus preventing the mixture from becoming too hot and burning the user.

[0039] The regulating liquid can be an essential oil type regulating liquid or a herbal type regulating liquid, as long as it can regulate the tobacco taste.

[0040] Please refer to Figure 6 and Figure 7 , Figure 6 As shown in Figure 2 the structural diagram of the filter assembly, Figure 2 and Figure 6 the angle of the filter assembly shown, Figure 7 As shown in Figure 2 the structural diagram of the heat conducting member of the filter assembly. The heat conducting member 30 is convex to the atomizing core 20 and has a convex part 32, which can make the heat conducting member 30 closer to the atomizing core 20, and the heat conducting member 30 provides higher temperature to the atomizing core 20, which is beneficial to accelerate the atomization of the regulating liquid.

[0041] It can be understood that the atomizing core 20 can also be convex to the heat conducting member 30 and have a convex part 32, so as long as one of the atomizing core 20 and the heat conducting member 30 is convex to the other.

[0042] The convex part 32 can have one or at least two. When the convex part 32 has at least two, the at least two convex parts 32 are arranged at intervals along the circumference of the atomizing core 20, and a concave part 34 is formed between each adjacent two convex parts 32. The area in the concave part 34 is part of the second channel 204 for the smoke to pass through, avoiding the convex part 32 blocking the second channel 204. The concave part 34 can be substantially arc-shaped, and the curvature thereof matches the curvature of the atomizing core 20. The concave part 34 is easy to process and can be made by conventional milling or drilling processes. According to actual needs, the concave part 34 can also be provided in other arbitrary shapes.

[0043] The heat conducting member 30 can be made of a metal material, such as stainless steel, brass, etc. The metal material has good heat conducting performance, which is beneficial to quickly absorb the heat emitted by the heating pipe 230 and quickly radiate the absorbed heat to the atomizing core 20. According to actual needs, the heat conducting member 30 can also be made of other materials with good heat conducting performance, such as ceramics, etc.

[0044] Please refer to Figure 8 and Figure 9 , Figure 8 As shown in Figure 2 the exploded view of the filter assembly 100, wherein the heat conducting member 30 of the filter assembly 100 is disassembled, Figure 9 As shown in Figure 2 the internal structure diagram of the sleeve joint part 12 of the filter assembly 100. One section of the second channel 204 is formed between the heat conducting member 30 and the atomizing core 20.

[0045] Specifically, a part of the atomization core 20 extends into the filter body 10 and forms one section of the second channel 204 with the filter body 10, and another part of the atomization core 20 is exposed from the filter body 10, and the heat conduction member 30 is arranged on the outer periphery of the part of the atomization core 20 exposed from the filter body 10 and forms another section of the second channel 204 with the atomization core 20.

[0046] It can be understood that the heat conduction member 30 and the atomization core 20 can also form a complete second channel, and therefore, as long as the heat conduction member 30 and the atomization core 20 form at least one section of the second channel 204, that is, the heat conduction member 30 can form one section of the second channel 204 with the atomization core 20 or form a complete second channel 204 with the atomization core 20.

[0047] When the filter body 10 is connected to the main machine 210, the heat conduction member 30 is partially arranged in the heating pipe 230. Specifically, the heat conduction member 30 is substantially in a hollow cylindrical structure, the heat conduction member 30 is substantially coaxial with the heating pipe 230, and the outer periphery of the heat conduction member 30 is relatively close to the inner wall of the heating pipe 230, which is beneficial to the heat conduction member 30 to absorb the heat emitted by the heating pipe 230.

[0048] It can be understood that in some other embodiments, the heat conduction member 30 can also be entirely arranged in the heating pipe 230. In some other embodiments, the heat conduction member 30 can also be connected to the heating pipe, and at this time, the heat conduction member 30 can be partially arranged in the heating pipe 230, can be entirely arranged in the heating pipe 230, or can be entirely outside the heating pipe 230. Therefore, when the filter body 10 is connected to the main machine 210, the heat conduction member 30 is at least partially arranged in the heating pipe 230 and / or connected to the heating pipe 230, which can realize the heat conduction member 30 to absorb the heat of the heating pipe 230.

[0049] The heat conduction member 30 is connected to the filter body 10, and after the filter body 10 is separated from the main machine 210, the heat conduction member 30 is also separated from the heating pipe 230, at this time, it is convenient to clean the dirt on the heat conduction member 30 or the heating pipe 230.

[0050] Specifically, the filter body 10 includes a sleeving part 12, and the heat conduction member 30 is sleeved on the sleeving part 12. A part of the atomization core 20 extends into the sleeving part 12 and forms one section of the second channel 204 with the sleeving part 12, and another part of the atomization core 20 is exposed from the sleeving part 12 and located in the heat conduction member 30, and another part of the atomization core 20 forms another section of the second channel 204 with the heat conduction member 30.

[0051] The sleeving of the heat conduction member 30 on the sleeving part 12 makes the disassembly of the heat conduction member 30 more convenient, in order to ensure the heating effect, the more the atomization core 20 is exposed from the sleeving part 12, the better the heating effect is, but in order to ensure the convenient installation, the exposure degree of the atomization core 20 cannot be too high.

[0052] In addition, the part of the atomizing core 20 exposed to the sleeve joint 12, i.e. the end of the atomizing core 20, the regulating liquid, after permeating to the surface of the atomizing core 20, is basically gathered at the end of the atomizing core 20 under the action of gravity, and the heat conducting member 30 can heat most of the regulating liquid on the surface of the atomizing core 20 as long as it covers the end of the atomizing core 20. Therefore, the degree of exposure of the atomizing core 20 does not need to be too high, and correspondingly, the heat conducting member 30 only needs to be arranged at the outer periphery of the end of the atomizing core 20 to ensure the atomization efficiency and the convenience of disassembly at the same time.

[0053] In the embodiment, one part of the heat conducting member 30 is arranged at the outer periphery of the sleeve joint 12, and the other part is arranged at the outer periphery of the part of the atomizing core 20 exposed to the sleeve joint 12. The heat conducting member 30 is provided with a protrusion 32 protruding towards the atomizing core 20, and the position of the protrusion 32 is opposite to the position of the part of the atomizing core 20 exposed to the sleeve joint 12.

[0054] In some other embodiments, the atomizing core 20 is provided with a protrusion 32 protruding towards the heat conducting member 30, and the protrusion 32 is located at the part of the atomizing core 20 exposed to the sleeve joint 12.

[0055] The sleeve joint 12 and the heat conducting member 30 are fixed by a buckle 122, which is convenient to disassemble, so as to clean the dirt on the heat conducting member 30.

[0056] The buckle 122 includes a first buckle part and a second buckle part. The first buckle part is arranged at the inner wall of the heat conducting member 30, and the second buckle part is arranged at the outer peripheral surface of the sleeve joint 12. The first buckle part is used to buckle with the second buckle part.

[0057] Specifically, the first buckle part is a clamping groove arranged on the heat conducting member 30, and the second buckle part is a clamping part arranged on the outer peripheral surface of the sleeve joint 12. The clamping part can be clamped into the clamping groove to realize the buckling of the first buckle part and the second buckle part, so that the heat conducting member 30 is installed on the sleeve joint 12. According to actual needs, the first buckle part can also be a clamping part arranged on the inner surface of the heat conducting member 30, and the second buckle part can also be a clamping groove arranged on the outer peripheral surface of the sleeve joint 12.

[0058] Please refer to Figure 10 to Figure 12 , Figure 10 to Figure 12 is a schematic view of the internal structure of an aerosol generating device according to some other embodiments. It can be understood that in some other embodiments, the heat conducting member 30 can also be used to connect the main machine 210. Specifically, the heat conducting member 30 connects the heating pipe 230. When the filter body 10 is connected to the main machine 210, the heat conducting member 30 is located at the outer periphery of the atomizing core 20. Since the heat conducting member 30 connects the heating pipe 230, after the filter body 10 is separated from the main machine 210, the heat conducting member 30 is no longer located at the outer periphery of the atomizing core 20. At this time, it is convenient to disassemble the atomizing core 20, so as to replace or clean the atomizing core 20, and the cost of the filter assembly 100 is reduced.

[0059] Please see Figure 13 and Figure 14 , Figure 13 for Figure 2 The diagram shows a disassembly of the filter assembly 100. Figure 14 for Figure 2 The diagram shows the internal structure of the filter assembly 100 from another angle. The first channel 202 is a liquid guiding channel, and the second channel 204 is an atomization channel. One end of the first channel 202 is connected to the liquid storage chamber 104. One end of the second channel 204 is connected to the suction channel 102. When the filter body 12 is connected to the main unit 210, the other end of the second channel 204 is connected to the heating tube 230. Because the second channel 204 is connected to the suction channel 102 and is an atomization channel, the heat-conducting element 30 directly heats the conditioning liquid within the second channel 204, causing the conditioning liquid to atomize, resulting in good atomization effect. Furthermore, because the outer surface area of ​​the atomizing core 20 is large, a greater amount of conditioning liquid can adhere to its outer surface. The heat-conducting element 30 can heat a greater amount of conditioning liquid, allowing more of the conditioning liquid to be atomized, thereby improving atomization efficiency.

[0060] The liquid storage chamber 104 is located on one axial side of the atomizing core 20 and away from the heat-conducting element 30. The suction channel 102 is located on one radial side of the liquid storage chamber 104 along the atomizing core 20. The liquid storage chamber 104 and the suction channel 102 are basically located in the same space along the radial direction of the atomizing core 20, which allows the size of the filter body 10 along the axial direction of the atomizing core 20 to be controlled, which is beneficial to controlling the length of the entire aerosol generating device 200 and making the aerosol generating device 200 more portable.

[0061] The filter body 10 also includes a bottom shell 14, a sealing seat 15, an airway support 17, and a top shell 19. A connecting part 12 connects to the bottom shell 14 and is in communication with it. The sealing seat 15 connects to the bottom shell 14. One end of the atomizing core 20 is located inside the bottom shell 14 and within the connecting part 12, while the other end of the atomizing core 20 is located outside the connecting part 12. The portion between the two ends of the atomizing core 20 is located inside the connecting part 12 and forms a section of the second channel 204 with the connecting part 12. The airway support 17 connects to the bottom shell 14. The top shell 19 connects to the bottom shell 14 and encloses the sealing seat 15 and the airway support 17. The top shell 19 and the sealing seat 15 form a liquid storage chamber 104. The sealing seat 15 has a liquid outlet hole 152, through which the first channel 202 communicates with the liquid storage chamber 104. One section of the suction channel 102 is located on the airway support 17, and the other section is located on the top shell 19.

[0062] The atomization core 20 is in a hollow cylindrical structure. The first channel 202 has an opening on an end surface of the atomization core 20 close to the liquid storage cavity 104. The opening is used to communicate with the liquid storage cavity 104, specifically through the oil storage hole 152. The regulating liquid in the liquid storage cavity 104 can enter the first channel 202 through the opening. The other end surface of the atomization core 20 close to the heat conduction piece 30 is closed to the first channel 202. The regulating liquid in the first channel 202 is not easy to flow into the heating pipe 230. The atomization core 20 can be made of porous material and has penetrating holes penetrating through the peripheral part of the atomization core 20. The regulating liquid in the first channel 202 can penetrate to the surface of the atomization core 20, that is, the second channel 204, through the penetrating holes. Since the porous material naturally has penetrating holes, the process step of processing the penetrating holes can be omitted, which can save cost, improve production efficiency, and be beneficial to mass production. The porous material can be porous ceramic, and the porosity of the porous ceramic can be between 45% and 55%.

[0063] In use, the filter body 10 is connected to the main machine 210, and the second channel 204 communicates with the heating pipe 230. The regulating liquid in the liquid storage cavity 104 enters the first channel 202, and the regulating liquid in the first channel 202 penetrates to the surface of the atomization core 20. The heat conduction piece 30 absorbs the heat emitted by the heating pipe 230, and the temperature rises. The heat conduction piece 30 heats the regulating liquid on the surface of the atomization core 20, so that the regulating liquid is atomized. The atomized regulating liquid mixes with the smoke entering from the heating pipe 230, and the mixture of the regulating liquid and the smoke is finally discharged from the suction channel 102.

[0064] Please refer to Figure 15 and Figure 16 , Figure 15 and Figure 16 are schematic diagrams of the internal structures of aerosol generating devices according to other embodiments, in which the heat conduction pieces of the aerosol generating devices are arranged in the atomization cores. As shown in Figure 16 , the first channel 202 is an atomization channel, and the second channel 204 is a liquid guiding channel. The heat conduction piece 30 is arranged in the first channel 202. Since the atomization channel is arranged in the atomization core 20, when the smoke flows upward, the smoke is not easy to be blocked by the bottom of the atomization core 20, that is, the smoke is not easy to gather at the bottom of the atomization core 20. The smoke flows more smoothly, and the heat carried by the smoke when entering the atomization channel is not too much. The effect of heating the regulating liquid is better.

[0065] One end of the first channel 202 is communicated with the suction channel 102, and the other end of the first channel 202 is communicated with the heating tube 230 when the filter body 10 is connected with the host. The second channel 204 is communicated with the liquid storage cavity 104. Since the first channel 202 is communicated with the suction channel 102, the first channel 202 is an atomization channel, and the second channel 204 is a liquid guide channel. The heat conduction member 30 heats the adjusting liquid in the first channel 202, which can accelerate the penetration of the adjusting liquid into the first channel 202, thereby increasing the penetration speed of the adjusting liquid and accelerating the atomization speed of the adjusting liquid in the first channel 202.

[0066] The liquid storage cavity 104 is arranged on the circumferential or radial side of the atomization core 20, and the suction channel 102 is arranged on the axial side of the atomization core 20.

[0067] The filter body 10 further includes a bottom shell 14, a sealing seat 15, an airway support 17, and a top shell 19.

[0068] The sleeve joint 12 is connected with the bottom shell 14.

[0069] The sealing seat 15 includes a surrounding portion 152, a mounting portion 154, and a sealing portion 156. The surrounding portion 152 is arranged on the outer periphery of the atomization core 20. One section of the surrounding portion 152 and the atomization core 20 is arranged in the bottom shell 14 and connected with the mounting portion 154, and the other section of the surrounding portion 152 and the atomization core 20 is arranged in the sleeve joint 12. The surrounding portion 152, the sleeve joint 12, and the atomization core 20 form the second channel 204. The surrounding portion 152 is provided with a through groove 1522, which exposes the atomization core 20 to the second channel 204, so that the adjusting liquid in the second channel 204 can reach the surface of the atomization core 20, and the adjusting liquid on the surface of the atomization core 20 can penetrate into the first channel 202. The sealing portion 156 protrudes from the surrounding portion 152 towards the sleeve joint 12, and abuts against the sleeve joint 12 to separate the second channel 204 from the heating tube 230.

[0070] The mounting portion 154 is provided with an air hole 1542, which is communicated with the first channel 202.

[0071] The airway support 17 is arranged on the side of the bottom shell 14 away from the atomization core 20, and is connected with the bottom shell 14 and forms the liquid storage cavity 104 with the bottom shell 14. The liquid storage cavity 104 is communicated with the second channel 204.

[0072] The top shell 19 is connected with the bottom shell 14 and accommodates the airway support 17. One section of the suction channel 102 is arranged in the airway support 17, and the other section is arranged in the top shell 19.

[0073] The atomizing core 20 is in a hollow cylindrical structure, the first channel 202 has two openings, one of which is arranged on the end surface of the atomizing core 20 away from the heat conduction piece 30, and the other opening is arranged on the other end surface of the atomizing core 20 close to the heat conduction piece 30, and the other opening is used to communicate with the heating pipe 230. The periphery of the atomizing core 20 is provided with a permeable hole. The surface of the atomizing core 20 can be a mesh structure or a porous structure.

[0074] In use, the bottom shell 14 is connected to the main machine 210, and the first channel 202 is communicated with the heating pipe 230. The adjusting liquid in the liquid storage cavity 104 enters the second channel 204, and the adjusting liquid in the second channel 204 reaches the surface of the atomizing core 20 through the through slot 1522 and penetrates into the first channel 202. The heat conduction piece 30 absorbs the heat emitted by the heating pipe 230, the temperature rises, the heat conduction piece 30 heats the adjusting liquid in the first channel 202, so that the adjusting liquid is atomized, the atomized adjusting liquid is mixed with the smoke entering from the heating pipe 230, and finally is discharged from the suction channel 102.

[0075] The heat conduction piece 30 is in a hollow cylindrical structure, and the outer peripheral surface thereof is attached to the inner wall of the first channel 202.

[0076] It can be understood that in other embodiments, the heat conduction piece 30 can be in a long strip shape, a plurality of heat conduction pieces 30 are attached to the inner wall of the first channel 202, and the heat conduction piece 30 can also be in a columnar shape, the axis thereof coincides with the axis of the atomizing core 20, and the outer peripheral surface of the heat conduction piece 30 has a gap with the inner wall of the atomizing core 20 for the smoke to pass into the first channel 202.

[0077] Please refer to Figure 1 and Figure 4 Another embodiment of the present application provides an aerosol generating device 200, which comprises a main machine 210 and the filter assembly 100 described in the above embodiments. The filter body 10 is connected to the main machine 210, the main machine 210 comprises a heating pipe 230, the heat conduction piece 30 is at least partially arranged in the heating pipe 230, and / or is connected to the heating pipe 230. The heat conduction piece 30 can absorb the heat emitted by the heating pipe 230.

[0078] It should be noted that the heat conduction piece 30 is at least partially arranged in the heating pipe 230, which can be that the heat conduction piece 30 is entirely arranged in the heating pipe 230, or only a part of the heat conduction piece 30 is arranged in the heating pipe 230, and the remaining part is arranged outside the heating pipe 230.

[0079] Please refer to Figure 10 and Figure 11In still another embodiment of the present application, an aerosol generating device 200 is provided, which comprises a filter assembly 100 and a main machine 210. The main machine 210 comprises a heating tube 230 and a heat conducting member 30 connected to the heating tube 230. The filter assembly 100 comprises a filter body 10 and an atomizing core 20. The filter body 10 is provided with a suction passage 102 and a liquid storage cavity 104. The suction passage 102 comprises a cooling passage segment 1022. The atomizing core 20 is connected to the filter body 10. The atomizing core 20 is internally provided with a first passage 202 and externally provided with a second passage 204. The atomizing core 20 is provided with a permeation hole, which connects the first passage 202 and the second passage 204. One of the first passage 202 and the second passage 204 is a liquid guiding passage, and the other is an atomizing passage. The liquid guiding passage is connected to the liquid storage cavity 104, and the atomizing passage is connected to the suction passage 102.

[0080] The filter body 10 is connected to the main machine 210. The heat conducting member 30 is arranged around the atomizing passage or located in the atomizing passage.

[0081] The heat conducting member 30 can be fixedly connected to the heating tube 230, for example, by welding, riveting, screwing, buckling, etc. Alternatively, the heat conducting member 30 can be placed in the heating tube 230. When the filter body 10 is connected to the main machine 210, the filter body 10 presses the heat conducting member 30 against the heating tube 230, so that the heat conducting member 30 is fixed.

[0082] The suction passage 102 comprises the cooling passage segment 1022. When the mixture passes through the cooling passage segment 1022, the temperature of the mixture is reduced, so as to avoid the mixture from burning the user due to excessively high temperature.

[0083] The specific use process of the filter assembly 100 is basically similar to the use process of the filter assembly 100 provided in the foregoing embodiments. For details, refer to the description of the use process of the filter assembly 100 in the foregoing embodiments, which will not be repeated here.

[0084] After the filter body 10 is separated from the main machine 210, the heat conducting member 30 is also separated from the atomizing core 20, which facilitates the cleaning and replacement of the atomizing core 20.

[0085] Compared with the prior art, in the filter assembly 100 provided by the embodiment of the present application, in use, the filter body 10 is connected to the main machine 210 of the aerosol generating device 200, the main machine 210 comprises a heating pipe 230 for heating a cigarette to generate smoke. The smoke enters the atomization channel, the regulating liquid in the liquid storage cavity 104 enters the liquid guide channel, the regulating liquid in the liquid guide channel permeates into the atomization channel, the regulating liquid in the atomization channel is atomized and mixed with the smoke to form a mixture, and finally the mixture is discharged through the suction channel 102. Among them, the heat-conducting member 30 absorbs the heat emitted by the heating pipe 230, heats the regulating liquid in the atomization channel, and atomizes the regulating liquid. Since the temperature of the heat-conducting member 30 is higher than that of the smoke, the atomization efficiency of the regulating liquid is improved.

[0086] In addition, the smoke can also heat the regulating liquid after entering the atomization channel, atomize the regulating liquid, and further improve the atomization efficiency of the regulating liquid.

[0087] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in details; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A filter assembly characterised in that, The filter body is connected with a main machine of an aerosol generating device, the main machine comprises a heating pipe, the heating pipe is used for heating a cigarette to generate smoke, the smoke enters the atomization channel, the adjusting liquid in the liquid storage cavity enters the liquid guide channel, the adjusting liquid in the liquid guide channel penetrates into the atomization channel, the adjusting liquid in the atomization channel is atomized to form a mixture with the smoke, and finally the mixture is discharged through the suction channel. The first channel is a liquid guide channel, and the second channel is an atomization channel. The filter body comprises a sleeve joint portion, the heat conducting member is sleeved on the sleeve joint portion, a part of the atomization core extends into the sleeve joint portion, and a part of the atomization core is exposed from the sleeve joint portion and located in the heat conducting member, and the atomization core and the heat conducting member form two segments of the second channel. The filter body is connected with a main machine of an aerosol generating device, the main machine comprises a heating pipe, the heating pipe is used for heating a cigarette to generate smoke, the smoke enters the atomization channel, the adjusting liquid in the liquid storage cavity enters the liquid guide channel, the adjusting liquid in the liquid guide channel penetrates into the atomization channel, the adjusting liquid in the atomization channel is atomized to form a mixture with the smoke, and finally the mixture is discharged through the suction channel.

2. A filter assembly according to claim 1, characterised in that, The heat conducting member and the atomization core are provided with protrusions.

3. A filter assembly according to claim 2, characterised in that, The protrusions have at least two, and the at least two protrusions are circumferentially spaced apart, and a recess is formed between each adjacent two protrusions.

4. A filter assembly according to claim 1, characterised in that The heat conducting member is provided with a protrusion towards the atomization core, and the position of the protrusion is opposite to the position of the part of the atomization core exposed from the sleeve joint portion. The atomization core is provided with a protrusion towards the heat conducting member, and the protrusion is located at the part of the atomization core exposed from the sleeve joint portion.

5. A filter assembly according to claim 1, characterised in that The heat conducting member is connected with the filter body.

6. A filter assembly according to any one of claims 1 to 5, wherein, The liquid storage cavity is arranged on one side of the atomization core in the axial direction. The suction channel is arranged on one side of the liquid storage cavity in the radial direction of the atomization core.

7. A filter assembly according to any one of claims 1 to 5, wherein, The first channel has an opening arranged on one end face of the atomization core close to the liquid storage cavity, and the other end face of the atomization core away from the liquid storage cavity closes the first channel.

8. A filter assembly according to claim 1, characterised in that The atomization core is made of a porous material.

9. An aerosol-generating device comprising, The filter assembly comprises a main machine and a filter body as claimed in any one of claims 1-8, the filter body is connected with the main machine, the main machine comprises a heating pipe, and the heat conducting member is at least partially arranged in the heating pipe and / or connected with the heating pipe.

10. An aerosol-generating device comprising: The main machine comprises a heating pipe and a heat conducting member, and the heat conducting member is connected with the heating pipe. The main machine comprises a heating pipe and a heat conducting member, and the heat conducting member is connected with the heating pipe. The filter assembly comprises a filter body and an atomizing core; the filter body is provided with a liquid storage cavity and a suction channel, the suction channel comprises a cooling channel section, the atomizing core is connected to the filter body, the atomizing core is internally provided with a first channel, the atomizing core is externally provided with a second channel, the atomizing core is provided with a permeation hole, the permeation hole communicates the first channel and the second channel, one of the first channel and the second channel is a liquid guide channel, and the other is an atomizing channel, the liquid guide channel communicates the liquid storage cavity, and the atomizing channel communicates the suction channel; The filter body is connected to the main machine; The heat conduction member is arranged around the atomizing channel or located in the atomizing channel; The heating pipe is used for heating a cigarette to generate smoke, the adjusting liquid in the liquid storage cavity enters the liquid guide channel, the adjusting liquid in the liquid guide channel permeates into the atomizing channel, the adjusting liquid in the atomizing channel is atomized to form a mixture with the smoke, and finally the mixture is discharged through the suction channel; the heat conduction member can absorb the heat emitted by the heating pipe, heat the adjusting liquid in the atomizing channel, and atomize the adjusting liquid.

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