Aerosol generation device

Abstract

The application provides an aerosol generating device, which comprises a shell, an atomizer and a second air channel. The top of the shell is provided with a first through hole. The atomizer is arranged in the interior of the shell. The atomizer has a heating cavity and a first air channel surrounding the periphery of the heating cavity. The air inlet end and the air outlet end of the first air channel are respectively communicated with the first through hole and the heating cavity. The second air channel is formed between the atomizer and the shell. The air inlet end and the air outlet end of the second air channel are respectively communicated with the first through hole and the heating cavity. When a user sucks the aerosol generated by the aerosol generating device, the cold air outside will enter the shell through the first through hole and flow through the first air channel and the second air channel respectively, so as to transfer the heat in the first air channel and the second air channel to the heating cavity, thereby reducing the surface temperature of the shell and improving the heat utilization rate, and the aerosol generating device will not be scalded when in use.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic atomization equipment, and particularly relates to an aerosol generating device. BACKGROUND

[0002] The heat-not-burn aerosol generating device is a device that atomizes by heating an aerosol generating substrate (such as a processed plant leaf product) without burning the aerosol generating substrate. The aerosol generating device heats the aerosol generating substrate to a temperature at which the aerosol generating substrate can generate an aerosol but is not sufficient to burn, so that the aerosol generating substrate generates an aerosol required by a user.

[0003] The existing heat-not-burn aerosol generating device generates heat when the heating tube is heated, which causes the air around the outside of the heating tube to be heated, resulting in a high surface temperature of the aerosol generating device, and the user may be scalded when using the device. SUMMARY

[0004] The aerosol generating device provided by the embodiments of the present application can solve the problem of high surface temperature of the existing aerosol generating device.

[0005] The aerosol generating device provided by the embodiments of the present application includes a shell, an atomizer, and a second air channel. The top of the shell is provided with a first through hole. The atomizer is arranged inside the shell. The atomizer has a heating cavity and a first air channel arranged around the outer periphery of the heating cavity. The air inlet end and the air outlet end of the first air channel are in communication with the first through hole and the heating cavity, respectively. The second air channel is formed between the atomizer and the shell. The air inlet end and the air outlet end of the second air channel are in communication with the first through hole and the heating cavity, respectively.

[0006] Optionally, the atomizer includes a heating tube and a heat insulation tube. The inside of the heating tube forms the heating cavity. The heat insulation tube is sleeved on the outside of the heating tube. A gap is arranged between the inner wall of the heat insulation tube and the outer wall of the heating tube to form the first air channel.

[0007] Optionally, the atomizer further includes an annular fixing seat. The inside of the fixing seat is connected with the heating tube, and the outside of the fixing seat is connected with the heat insulation tube. The outside surface of the fixing seat is provided with a first air groove. The first air groove communicates the spaces at the two axial ends of the fixing seat.

[0008] Optionally, the atomizer includes two fixing seats. The upper end of the heating tube is connected with the upper end of the heat insulation tube through one of the fixing seats. The lower end of the heating tube is connected with the lower end of the heat insulation tube through the other fixing seat.

[0009] Optionally, the inner side of the fixed seat is in abutment with the heating pipe, and the outer side of the fixed seat is in abutment with the heat insulation pipe; an axial end surface of the fixed seat is provided with a second air groove, the second air groove is in communication with the first air groove, and the second air grooves of the two fixed seats are arranged away from each other.

[0010] Optionally, the inner side surface of the fixed seat is provided with a groove.

[0011] Optionally, the inner side surface of the fixed seat is provided with a groove.

[0012] Optionally, the aerosol generating device further comprises a fixed pipe supported at the bottom of the atomizer, the lower end of the fixed pipe is in communication with the air outlet end of the second air channel, and the upper end of the fixed pipe is in communication with the heating cavity.

[0013] Optionally, the aerosol generating device further comprises a support arranged inside the shell, the atomizer is arranged on the support, and the second air channel is formed between the support and the shell.

[0014] Optionally, the aerosol generating device further comprises a decorative cover and a mounting seat, the decorative cover is arranged at the first through hole and is mounted on the support through the mounting seat; the decorative cover is provided with a second through hole in communication with the first through hole, and the outer surface of the mounting seat is provided with a third air groove in communication with the second through hole and the air inlet end of the second air channel, respectively.

[0015] The aerosol generating device provided by the embodiment has the first air channel arranged at the outer periphery of the heating cavity and the second air channel formed between the atomizer and the shell. In use, the aerosol product is inserted into the heating cavity of the atomizer, and aerosol is generated by heating the aerosol product for a user to inhale. When the user inhales the aerosol, the cold air outside enters the shell through the first through hole, and part of the cold air enters the heating cavity through the first air channel, so that the heat in the first air channel is transferred to the heating cavity to heat the aerosol product, and the first air channel is also ventilated and cooled to reduce heat conduction to the shell. Another part of the cold air enters the heating cavity through the second air channel, so that the heat around the atomizer is transferred to the heating cavity to reduce heat conduction to the shell, thereby reducing the temperature of the surface of the shell, achieving the effects of cooling, improving heat utilization rate, and rapid heating, so that the aerosol generating device does not appear to be hot when in use. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor. In the following description, the same reference signs represent the same parts.

[0017] Figure 1 The front view of the aerosol generating device provided by the embodiments of the present application.

[0018] Figure 2 The left view of the aerosol generating device shown in Figure 1

[0019] Figure 3 The cross-sectional view of the aerosol generating device shown in Figure 2

[0020] Figure 4 The schematic diagram of the cold air flow path of the aerosol generating device shown in Figure 3

[0021] Figure 5 The enlarged structural schematic diagram of part A of the aerosol generating device shown in Figure 4

[0022] Figure 6 The top view of the aerosol generating device shown in Figure 1

[0023] Figure 7 The structural schematic diagram of the aerosol generating device shown in Figure 1

[0024] Figure 8 The structural schematic diagram of another perspective of the aerosol generating device shown in Figure 7

[0025] Figure 9 The exploded structural schematic diagram of the aerosol generating device shown in Figure 1

[0026] Figure 10 The exploded structural schematic diagram of the shell provided by the embodiments of the present application.

[0027] Figure 11 The partial structural schematic diagram of the atomizer provided by the embodiments of the present application.

[0028] Figure 12 The exploded structural schematic diagram of the atomizer shown in Figure 11

[0029] ​​​​​​​​​Figure 13 Structure diagram of another view of the atomizer shown in FIG. 1. Figure 11

[0030] Figure 14 Structure diagram of a longitudinal section of the atomizer shown in FIG. 1. Figure 13

[0031] Structure diagram of a longitudinal section of the atomizer shown in FIG. 1. Figure 15

[0032] Structure diagram of another view of the atomizer shown in FIG. 1. Figure 16 Figure 15 Structure diagram of another view of the atomizer shown in FIG. 1.

[0033] Figure 17 Structure diagram of another view of the atomizer shown in FIG. 1.

[0034] Figure 18 Structure diagram of another view of the atomizer shown in FIG. 1.

[0035] Figure 19 Structure diagram of another view of the atomizer shown in FIG. 1.

[0036] Figure 20 Structure diagram of another view of the atomizer shown in FIG. 1.

[0037] Figure 21 Structure diagram of another view of the atomizer shown in FIG. 1.

[0038] Figure 22 Structure diagram of another view of the atomizer shown in FIG. 1.

[0039] Figure 23 Structure diagram of another view of the atomizer shown in FIG. 1.

[0040] Figure 24 Structure diagram of another view of the atomizer shown in FIG. 1.

[0041] BRIEF DESCRIPTION OF THE DRAWINGS

[0042] ​​1、Aerosol product; 100, Shell; 101, First through hole; 102, Bottom through hole; 110, First shell; 120, Second shell; 201, Heating cavity; 202, First air channel; 203, Second air channel; 210, Heating pipe; 220, Heat insulation pipe; 221, Positioning groove; 230, Fixed seat; 230a, First fixed seat; 230b, Second fixed seat; 231, First air groove; 232, Second air groove; 233, Groove; 234, First positioning protrusion; 235, Limiting protrusion; 240, Magnetic field generator; 250, Filter screen; 260, Magnetic isolation pipe; 270, Heat insulation cotton; 280, Temperature measuring element; 290, Heat shrink tube; 300, Fixed pipe; 310, Support part; 320, Matching part; 330, Second positioning protrusion; 400, Bracket; 401, Bracket through hole; 402, Shaft hole; 510, Decorative cover; 511, Second through hole; 520, Mounting seat; 521, Mounting through hole; 522, Third air groove; 610, Rotary cover door; 620, Rotary shaft; 630, Torsion spring; 710, Main control circuit board; 720, Power supply; 730, Key plate; 740, Switch key; 750, Decorative piece; 760, Light guide piece; 770, Vibrator; 780, Radiating fin. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0044] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0045] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0046] This application provides an aerosol generating device, such as... Figures 1-24 As shown, the aerosol generating device includes a housing 100, an atomizer, and a second air passage 203. The top of the housing 100 is provided with a first through hole 101. The atomizer is disposed inside the housing 100 and is used to heat the aerosol product 1. The atomizer has a heating chamber 201 and a first air passage 202 surrounding the heating chamber 201. The air inlet end of the first air passage 202 is connected to the first through hole 101, and the air outlet end of the first air passage 202 is connected to the heating chamber 201. The second air passage 203 is formed between the atomizer and the housing 100. The air inlet end of the second air passage 203 is connected to the first through hole 101, and the air outlet end of the second air passage 203 is connected to the heating chamber 201.

[0047] When using the aerosol generating device provided in this embodiment, an aerosol product 1 (e.g., a cigarette cartridge) is inserted into the heating chamber 201 of the atomizer. The aerosol product 1 is heated to generate an aerosol for the user to inhale. The aerosol generating device provided in this embodiment has a first air passage 202 on the outer periphery of the heating chamber 201 and a second air passage 203 formed between the atomizer and the housing 100. Both the first air passage 202 and the second air passage 203 are connected to the first through hole 101 and the heating chamber 201. This allows external cold air to enter the housing through the first through hole 101 when the user inhales the aerosol, and a portion of the cold air... Cold air can enter the heating chamber 201 through the first air passage 202, transferring heat from the first air passage 202 to the heating chamber 201 to heat the aerosol product 1. At the same time, it can also ventilate and cool the first air passage 202, reducing heat conduction to the shell 100. Another part of the cold air can enter the heating chamber 201 through the second air passage 203, transferring heat from the periphery of the atomizer to the heating chamber 201, reducing heat conduction to the shell 100. This reduces the surface temperature of the shell 100, achieving the effects of cooling, improving heat utilization, and rapid heating, so that the aerosol generating device will not become too hot to handle during use.

[0048] In some embodiments of the present application, as shown in Figures 3-5 、 Figures 11-16 The atomizer includes a heating tube 210 and a heat insulation tube 220. The inside of the heating tube 210 forms a heating cavity 201. The heat insulation tube 220 is sleeved on the outside of the heating tube 210, and a gap is provided between the inner wall of the heat insulation tube 220 and the outer wall of the heating tube 210 to form a first air passage 202. The heating tube 210 is used for heating to heat the aerosol product 1. The heat insulation tube 220 is used for heat insulation to reduce the heat dissipation of the heating tube 210.

[0049] Optionally, the heating tube 210 is made of a magnetic conductive material (such as iron, permalloy, etc.). The atomizer further includes a magnetic field generator 240 arranged on the outside of the heat insulation tube 220, which is used to generate a high-frequency alternating magnetic field to heat the heating tube 210 to heat the aerosol product 1, so that the aerosol product 1 generates aerosol for the user to smoke. The magnetic field generator 240 can be an electromagnetic induction coil, which is sleeved on the outside of the heat insulation tube 220. Such a structure is more compact, which is beneficial to the miniaturization of the aerosol generating device.

[0050] Specifically, the two ends of the heating tube 210 are respectively provided with a heating through hole for inserting the aerosol product 1 into the heating cavity 201 and an air inlet in communication with the air outlet end of the first air passage 202. The air inlet of the heating tube 210 is covered with a filter screen 250, which is used to filter dust in the air to prevent dust in the air from blocking the aerosol product 1 and causing large suction resistance, thereby improving the user's smoking experience.

[0051] Optionally, the heat insulation tube 220 can be made of porous low-temperature ceramic or heat insulation composite aerogel, etc. to improve its own heat insulation effect. However, since the air gap between the heating tube 210 and the heat insulation tube 220 itself has good heat insulation effect, the heat insulation tube 220 can also be made of other relatively common materials, such as plastic or rubber, etc. which can also have good heat insulation effect. It should be noted that when the atomizer includes the magnetic field generator 240, the overall structure of the heat insulation tube 220 should have a large resistance in the direction of the magnetic field generated by the magnetic field generator 240 to avoid the magnetic field generated by the magnetic field generator 240 heating the heat insulation tube 220. Therefore, the heat insulation tube 220 can be provided as an insulator, or a silicon steel sheet structure with the overlapping direction being in the same direction as the magnetic field direction in most areas.

[0052] In some embodiments of the present application, as shown in Figure 3 、 Figure 9 、 Figures 11-19As shown, the atomizer further comprises an annular fixing seat 230, the inner side of the fixing seat 230 is connected with the heating pipe 210, and the outer side of the fixing seat 230 is connected with the heat insulation pipe 220; the outer side surface of the fixing seat 230 is provided with a first air groove 231, and the first air groove 231 communicates the spaces at the two axial ends of the fixing seat 230. The provision of the fixing seat 230 ensures that the heating pipe 210 and the heat insulation pipe 220 are spaced apart from each other, so that the positional relationship between the heating pipe 210 and the heat insulation pipe 220 is more stable, and the heat conduction is avoided from being intensified due to the too close distance between the two pipes at some positions; the provision of the first air groove 231 enables the gas in the first air channel 202 to flow, and external cold air can enter the first air channel 202 to be cooled when a user sucks the aerosol product 1.

[0053] Optionally, the inner side of the fixing seat 230 and the heating pipe 210 can be connected by interference fit, abutment, adhesion, welding, screw connection and the like, and the outer side of the fixing seat 230 and the heat insulation pipe 220 can be connected by interference fit, abutment, adhesion, welding, screw connection and the like, and the specific connection mode can be set according to actual needs.

[0054] Optionally, the number of the fixing seat 230 can be one or more, and the specific number can be set according to actual needs. For example, Figure 3 、 Figure 9 、 Figures 11-16 As shown, the atomizer comprises two fixing seats 230, the upper end of the heating pipe 210 is connected with the upper end of the heat insulation pipe 220 through one of the fixing seats 230, and the lower end of the heating pipe 210 is connected with the lower end of the heat insulation pipe 220 through the other fixing seat 230. For the convenience of understanding, the two fixing seats 230 are defined as a first fixing seat 230a and a second fixing seat 230b, the inner side of the first fixing seat 230a is connected with the upper end of the heating pipe 210, the outer side of the first fixing seat 230a is connected with the upper end of the heat insulation pipe 220, the inner side of the second fixing seat 230b is connected with the lower end of the heating pipe 210, and the outer side of the second fixing seat 230b is connected with the lower end of the heat insulation pipe 220. By connecting the two ends of the heating pipe 210 and the heat insulation pipe 220 through the two fixing seats 230, the stability of the positional relationship between the heating pipe 210 and the heat insulation pipe 220 can be further improved, the existence of the gap and the uniformity of the thickness of the gap in the radial direction of the heating pipe 210 are ensured, and thus the stability of the heat insulation effect is ensured.

[0055] Specifically, as shown in Figure 18 and Figure 19As shown, the inner side surface of the first fixing seat 230a and the second fixing seat 230b is provided with a limiting protrusion 235, the first fixing seat 230a and the second fixing seat 230b are sleeved on the outer side of the heating pipe 210, and the end surface of the two ends of the heating pipe 210 respectively abuts against the limiting protrusions 235 of the first fixing seat 230a and the second fixing seat 230b, so as to realize the connection of the first fixing seat 230a and the second fixing seat 230b with the heating pipe 210, without the need of additional connecting parts, so that the assembly process is simple and the operation is convenient, and the assembly efficiency of the fixing seat 230 and the heating pipe 210 is improved.

[0056] Optionally, as shown in Figure 18 and Figure 19 As shown, the inner side of the fixing seat 230 abuts against the heating pipe 210, the outer side of the fixing seat 230 abuts against the heat insulation pipe 220, one end surface of the fixing seat 230 is provided with a second air groove 232, the second air groove 232 is communicated with the first air groove 231, and the second air grooves 232 of the two fixing seats 230 are arranged away from each other. In other words, one end surface of the first fixing seat 230a and the second fixing seat 230b is provided with a second air groove 232 communicated with the first air groove 231, and the second air groove 232 of the first fixing seat 230a and the second air groove 232 of the second fixing seat 230b are arranged away from each other. The arrangement of the second air groove 232 ensures that when the heating pipe 210 and the heat insulation pipe 220 abut against the inner side and the outer side of the fixing seat 230 respectively, air can flow into the gap (i.e. the first air channel 202) between the heating pipe 10 and the heat insulation pipe 220 and into the heating cavity 201 through the fixing seat 230.

[0057] Optionally, as shown in Figure 18 and Figure 19 As shown, the inner side surface of the fixing seat 230 is provided with a groove 233. The arrangement of the groove 233 can reduce the contact area of the fixing seat 230 and the heating pipe 210, reduce the heat transfer from the heating pipe 210 to the fixing seat 230, i.e. reduce the heat transferred from the heating pipe 210 to the fixing seat 230, and improve the heat insulation effect.

[0058] Preferably, the fixing seat 230 is made of low thermal conductivity material (such as porous low-temperature ceramic, heat insulation composite aerogel, etc.), so that the whole fixing seat 230 is not heated, the temperature of the fixing seat 230 is much lower than the temperature of the heating pipe 210, the heat on the circumferential heating pipe is more concentrated, the heat on the heating pipe 210 is more concentrated, the heat conduction loss is reduced, and the heating efficiency is higher; at the same time, the fixing seat 230 made of low thermal conductivity material can also reduce the heat conduction to the shell 100 of the aerosol generating device, so as to achieve the effect of reducing the surface temperature of the shell 100 of the aerosol generating device, and avoid overheating of the shell 100 of the aerosol generating device.

[0059] Optionally, as shown in Figure 17As shown, the inner side of the heat insulation tube 220 is provided with a positioning groove 221, and the outer side of the fixing seat 230 is provided with a first positioning protrusion 234 which is inserted into the positioning groove 221. Figure 18 and Figure 19 As shown, the outer side of the fixing seat 230 is provided with a first positioning protrusion 234 which is inserted into the positioning groove 221. The positioning groove 221 and the first positioning protrusion 234 facilitate quick positioning when the heat insulation tube 220 is assembled with the fixing seat 230, which is conducive to improving the assembly efficiency. Specifically, the end of the heat insulation tube 220 is provided with an opening which is in communication with the positioning groove 221, and the fixing seat 230 is moved along the axial direction of the heat insulation tube 220 during assembly, so that the first positioning protrusion 234 is inserted into the positioning groove 221 through the opening.

[0060] It can be understood that when the atomizer includes two fixing seats 230, i.e., the first fixing seat 230a and the second fixing seat 230b, the inner side of both axial ends (i.e., the upper and lower ends) of the heat insulation tube 220 is provided with the positioning groove 221, the first positioning protrusion 234 on the first fixing seat 230a is inserted into the positioning groove 221 on the upper end of the heat insulation tube 220, and the first positioning protrusion 234 on the second fixing seat 230b is inserted into the positioning groove 221 on the lower end of the heat insulation tube 220.

[0061] In some embodiments of the present application, when the atomizer further includes a magnetic field generator 240, as shown in Figures 3-9 The atomizer further includes a magnetic shielding tube 260 which is sleeved on the outer side of the heat insulation tube 220, and the magnetic field generator 240 is arranged between the magnetic shielding tube 260 and the heat insulation tube 220. The arrangement of the magnetic shielding tube 260 can reduce the leakage of the magnetic field generated by the magnetic field generator 240, so that the magnetic field generated by the magnetic field generator 240 is concentrated on heating the heating tube 210 to better heat the aerosol product 1, thereby improving the heating efficiency.

[0062] Optionally, one or more magnetic shielding tubes 260 can be arranged, and when multiple magnetic shielding tubes 260 are arranged, the multiple magnetic shielding tubes 260 can be sequentially sleeved on the outer side of the heat insulation tube 220 from the inside to the outside, and a heat insulation cotton 270 can be further arranged between adjacent two magnetic shielding tubes 260, and the heat insulation cotton 270 functions to insulate heat to reduce the heat dissipation of the heating tube 210. For example, as shown in Figure 3 and Figure 9 The atomizer includes two magnetic shielding tubes 260, for the convenience of description, the two magnetic shielding tubes 260 are defined as an inner magnetic shielding tube and an outer magnetic shielding tube, the inner magnetic shielding tube is sleeved on the outer side of the heat insulation tube 220, the outer magnetic shielding tube is sleeved on the outer side of the inner magnetic shielding tube, and the heat insulation cotton 270 is arranged between the two magnetic shielding tubes 260.

[0063] In some embodiments of the present application, as shown in Figure 3 , Figure 9 , Figures 11-16As shown, the atomizer further comprises a temperature measuring element 280, which is in heat conduction connection with the heating tube 210. The temperature measuring element 280 can monitor the surface temperature of the heating tube 210, so as to control the heating temperature of the heating tube 210 and avoid overheating of the heating tube 210. Specifically, the temperature measuring element 280 is connected to the main control circuit board 710 of the aerosol generating device through a wire. A heat shrink tube 290 is sleeved outside the heating tube 210. The temperature measuring element 280 is clamped between the heating tube 210 and the heat shrink tube 290. The heat shrink tube 290 is used to press and fix the temperature measuring element 280 to the outer surface of the heating tube 210, so as to prevent the temperature measuring element 280 from falling off.

[0064] In some embodiments of the present application, as shown in Figure 3 , Figures 7-9 and Figure 20 , the aerosol generating device further comprises a fixing tube 300, which is supported at the bottom of the atomizer to fix the atomizer in the shell 100. The lower end of the fixing tube 300 (i.e. the air inlet end of the fixing tube 300) is in communication with the air outlet end of the second air channel 203, and the upper end of the fixing tube 300 (i.e. the air outlet end of the fixing tube 300) is in communication with the heating cavity 201. Specifically, part of the cold air entering the shell 100 from the first through hole 101 will flow through the second air channel 203 and the inside of the fixing tube 300 in sequence, and finally enter the heating cavity 201. The provision of the fixing tube 300 makes the cold air entering the second air channel 203 have a longer flow path, so that more heat inside the shell 100 can be transferred to the heating cavity 201, thereby better reducing the temperature of the surface of the shell 100.

[0065] Optionally, as shown in Figure 20 , the upper end of the fixing tube 300 is provided with a support portion 310 and a cooperation portion 320 in sequence in the direction away from the lower end. The cooperation portion 320 has a cooperation through hole in communication with the fixing tube 300. The heat insulation tube 220 is sleeved on the cooperation portion 320. The lower end of the heat insulation tube 220 and the lower end of the magnetic isolation tube 260 are in abutment with the support portion 310. The second fixing seat 230b is in abutment with the cooperation portion 320. As shown in Figure 20 , the outer side surface of the cooperation portion 320 is provided with a second positioning protrusion 330, which is also inserted into the positioning groove 221 provided on the inner side surface of the heat insulation tube 220, so as to facilitate quick positioning when the heat insulation tube 220 is assembled with the fixing tube 300, and to facilitate improving the assembly efficiency.

[0066] As shown in Figure 3 , Figures 7-9 and Figure 21As shown, the aerosol generating device further comprises a bracket 400, the bracket 400 is arranged inside the shell 100, the atomizer and the fixing tube 300 are both arranged on the bracket 400, and the second air passage 203 is formed between the bracket 400 and the shell 100. The bracket 400 is used for supporting and mounting various components, and various components are reasonably arranged on the bracket 400, so that the whole structure is compact.

[0067] In some embodiments of the present application, as Figures 3-4 , Figures 7-9 and Figure 24 , the aerosol generating device further comprises a rotating cover door 610, the bottom of the shell 100 is provided with a bottom through hole 102 (as shown in Figure 10 ), the bottom of the bracket 400 is provided with a bracket through hole 401 opposite to the bottom through hole 102 (as shown in Figure 21 ), the bracket through hole 401 is communicated with the lower end of the fixing tube 300, and the rotating cover door 610 is rotatably arranged on the bracket through hole 401 to open and close the bracket through hole 401. By arranging the rotating cover door 610, on the one hand, it can play a decorative role, and on the other hand, it is convenient to clean the smoke stains in the heating tube 210, that is, the user can open the rotating cover door 610 to clean the inside of the heating tube 210 by inserting the cleaning tool through the bottom through hole 102, the bracket through hole 401 and the fixing tube 300 in sequence.

[0068] Specifically, the rotating cover door 610 is installed at the bracket through hole 401 through a connecting assembly, as shown in Figure 9 and Figure 24 , the connecting assembly comprises two torsional springs 630 and a rotating shaft 620, the inner side wall of the bracket through hole 401 is provided with two opposite shaft holes 402 (as shown in Figure 21 ), and the two ends of the rotating shaft 620 are respectively arranged in the two shaft holes 402; the two torsional springs 630 are respectively sleeved on the two ends of the rotating shaft 620, and the rotating feet at the two ends of the torsional spring 630 respectively abut against the inner side wall of the bracket through hole 401, so that the rotating cover door 610 is rotatably arranged on the bracket through hole 401.

[0069] Optionally, as shown in Figures 1-4 , Figure 9 and Figure 10 , the shell 100 comprises a first shell 110 and a second shell 120, the first shell 110 is detachably connected with the second shell 120 and the two shells enclose a containing cavity, the bracket 400 is arranged in the containing cavity and the atomizer is arranged on the bracket 400, and the first through hole 101 and the bottom through hole 102 are arranged on the first shell 110 and the second shell 120 respectively.

[0070] In some embodiments of the present application, as Figures 1-9 , Figure 22 and Figure 23As shown, the aerosol generating device also includes a decorative cover 510 and a mounting base 520. The decorative cover 510 is disposed over the first through hole 101 and is mounted on the bracket 400 via the mounting base 520; the decorative cover 510 has a second through hole 511 communicating with the first through hole 101 (e.g., ...). Figure 22 As shown), the outer surface of the mounting base 520 is provided with a third air groove 522 (as shown). Figure 23 As shown, the third air groove 522 is connected to the air inlet end of the second through hole 511 and the second air channel 203. Specifically, when the user inhales the aerosol, external cold air will enter the housing through the second through hole 511, and part of the cold air will enter the heating chamber 201 through the first air channel 202, while the other part of the cold air will flow sequentially through the third air groove 522, the second air channel 203 and the fixing pipe 300 of the mounting base 520, and finally enter the heating chamber 201.

[0071] Specifically, such as Figure 23 As shown, the mounting base 520 is provided with a mounting through hole 521 that is opposite to and communicates with the second through hole 511. The mounting through hole 521 is connected to the air inlet end of the first air passage 202. The heating through hole of the heating tube 210 is arranged opposite to the mounting through hole 521. The aerosol product 1 can be inserted into the heating chamber 201 after passing through the second through hole 511, the mounting through hole 521 and the heating through hole in sequence.

[0072] The following uses aerosol product 1 as an example of a cigarette cartridge. Figure 4 The cold air flow path of the aerosol generating device shown is explained below:

[0073] The aerosol generating device heats the cartridge inserted in the heating chamber 201 to generate an aerosol for the user to inhale. When the user inhales the aerosol, external cold air enters the housing 100 through the second through hole 511 of the decorative cover 510 and is then divided into two streams. One stream of cold air flows sequentially through the mounting through hole 521 of the mounting base 520, the second air groove 232 of the first fixing base 230a, the first air groove 231 of the first fixing base 230a, the first air passage 202, the first air groove 231 of the second fixing base 230b, the second air groove 232 of the second fixing base 230b, and the middle of the second fixing base 230b before entering the cartridge. This allows heat from the first air passage 202 to be transferred to the cartridge to heat it. At the same time, this cold air can also cool the first mounting base 230a, the second mounting base 230b, and the first air passage 202, reducing heat conduction to the housing 100. Another stream of cold air flows sequentially through the third air groove 522 of the mounting base 520, the second air passage 203, the interior of the fixing tube 300, and the middle of the second mounting base 230b into the cartridge. This transfers heat from the second air passage 203 to the cartridge to heat it, thus reducing the surface temperature of the housing 100 and preventing the aerosol generating device from becoming too hot to handle during use.

[0074] likeFigure 1 、 Figure 3 、 Figures 7-9 As shown in

[0075] Optionally, the aerosol generating device further comprises a light source and a light guide member 760, the light source is electrically connected with the main control circuit board 710, and the light guide member 760 is used for guiding light emitted by the light source to the switch key 740, so that the light is transmitted from the switch key 740, thereby playing a role of prompting the working state of the aerosol generating device to the user. Optionally, the aerosol generating device further comprises a vibrator 770 that can vibrate, the vibrator 770 is arranged at the bottom of the support 400, and the vibrator 770 is used for prompting the working state of the aerosol generating device when vibrating.

[0076] In some embodiments of the present application, as shown in Figures 7-9 , the aerosol generating device further comprises a heat sink 780, the heat sink 780 is attached to the outer surface of the support 400, and is used for dissipating heat from the aerosol generating device. Optionally, the heat sink 780 can be made of aluminum or other heat dissipation materials, and the number of heat sinks 780 can be one or more, which can be set according to actual needs. When multiple heat sinks 780 are provided, the heat dissipation efficiency can be further improved. For example, two heat sinks 780 can be provided, and the two heat sinks 780 are respectively attached to the outer surfaces of the two opposite sides of the support 400.

[0077] Specifically, as shown in Figure 3 and Figures 7-9 , the power supply 720 and the atomizer are respectively arranged on the left and right sides of the support 400, the fixing tube 300 is located below the atomizer, one end of the fixing tube 300 is supported at the bottom of the atomizer, the other end of the fixing tube 300 is fixed to the support 400, the main control circuit board 710 is located between the power supply 720 and the atomizer, and the two heat sinks 780 are respectively attached to the outer surfaces of the front and rear sides of the support 400. In this way, the various components can be reasonably arranged on the support 400, so that the overall structure of the aerosol generating device is more compact.

[0078] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0079] The above describes in detail the aerosol generating device provided by the embodiments of the present application, and the principles and implementation manners of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific implementation manners and application ranges will be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An aerosol generating device, characterized by, The utility model relates to a kind of atomizer and atomizer, including: Shell (100), top is equipped with first through-hole (101); Atomizer, set in the inside of the shell (100), the atomizer has heating cavity (201) and the first air passage (202) around the heating cavity (201) outer periphery, the air inlet end and the air outlet end of the first air passage (202) are communicated with the first through-hole (101) and the heating cavity (201) respectively; Second air passage (203) is formed between the atomizer and the shell (100), the air inlet end and the air outlet end of the second air passage (203) are communicated with the first through-hole (101) and the heating cavity (201) respectively; Part of cold air in the cold air entering the first through-hole (101) passes through the first air passage (202) and enters heating cavity (201), another part of cold air passes through the second air passage (203) and enters heating cavity (201); The atomizer includes: heat insulation pipe (220), the heat insulation pipe (220) is sleeved on the outside of the heating cavity (201), and gap is equipped between the inner wall of the heat insulation pipe (220) and the heating cavity (201) to form the first air passage (202).

2. An aerosol generation device according to claim 1, wherein, The atomizer further includes heating pipe (210), the inside of the heating pipe (210) forms the heating cavity (201), the heat insulation pipe (220) is sleeved on the outside of the heating pipe (210), and gap is equipped between the inner wall of the heat insulation pipe (220) and the outer wall of the heating pipe (210) to form the first air passage (202).

3. An aerosol generation device according to claim 2, wherein, The atomizer further includes annular fixing seat (230), the inside of the fixing seat (230) is connected with the heating pipe (210), the outside of the fixing seat (230) is connected with the heat insulation pipe (220);The outside surface of the fixing seat (230) is equipped with first air groove (231), and the first air groove (231) communicates the space of the axial both ends of the fixing seat (230).

4. An aerosol generation device according to claim 3, wherein, The atomizer includes two fixing seats (230), the upper end of the heating pipe (210) is connected with the upper end of the heat insulation pipe (220) by one of the fixing seats (230), and the lower end of the heating pipe (210) is connected with the lower end of the heat insulation pipe (220) by another fixing seat (230).

5. An aerosol generation device according to claim 4, wherein, The inside of the fixing seat (230) is in abutment with the heating pipe (210), and the outside of the fixing seat (230) is in abutment with the heat insulation pipe (220);The surface of the axial one end of the fixing seat (230) is equipped with second air groove (232), and the second air groove (232) is communicated with the first air groove (231), and the second air groove (232) of two fixing seats (230) is arranged away from each other.

6. An aerosol generation device according to claim 3, wherein, The inside surface of the fixing seat (230) is equipped with recess (233).

7. An aerosol generation device according to claim 3, wherein, The inside surface of the heat insulation pipe (220) is equipped with positioning groove (221), and the outside surface of the fixing seat (230) is equipped with first positioning protrusion (234), and the first positioning protrusion (234) is inserted into the positioning groove (221).

8. An aerosol generating device according to any of claims 1 to 7, wherein, The aerosol generating device further comprises a fixed tube (300) supported at the bottom of the atomizer, a lower end of the fixed tube (300) being in communication with an air outlet end of the second air passage (203), and an upper end of the fixed tube (300) being in communication with the heating cavity (201).

9. An aerosol generating device according to any of claims 1 to 7, wherein The aerosol generating device further comprises a bracket (400) arranged inside the shell (100), the atomizer being arranged on the bracket (400), and the bracket (400) and the shell (100) forming the second air passage (203) therebetween.

10. An aerosol generation device according to claim 9, wherein, The aerosol generating device further comprises a decorative cover (510) and a mounting seat (520), the decorative cover (510) being arranged at the first through hole (101) and mounted on the bracket (400) through the mounting seat (520). The decorative cover (510) is provided with a second through hole (511) in communication with the first through hole (101), and an outer surface of the mounting seat (520) is provided with a third air groove (522) in communication with the second through hole (511) and an air inlet end of the second air passage (203), respectively.

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