Aerosol-generating device

Abstract

The invention relates to the technical field of aerosol atomization equipment, and provides an aerosol generation device which comprises a first base, a second base, an atomization assembly and a drainage support. As the liquid accumulation groove is divided into the ventilation cavity and the liquid accumulation cavity by the partition plate, when a user sucks and uses the aerosol generating device, suction force can drive air flow in the ventilation cavity located on one side of the partition plate to flow out of the ventilation cavity from the air inlet hole, so that the air pressure of the liquid accumulation cavity located on the other side of the partition plate is larger than that of the ventilation cavity, namely negative pressure is formed; condensate in the liquid accumulation cavity can be pressed into the drainage channel of the drainage support by atmospheric pressure and slowly extruded upwards to the atomization air channel, secondary atomization is conducted through the atomization assembly, consumption of the condensate is achieved, the problem that an internal circuit structure is damaged due to excessive accumulation of the condensate is effectively solved, and the product quality and the service life are guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol atomization equipment, and in particular to an aerosol generating device. Background Art

[0002] The aerosol atomizer is an electronic product that heats and atomizes the liquid aerosol-generating matrix, and evaporates to produce a mist-like aerosol for users to inhale. When the aerosol atomizer is working, more or less condensate will be formed. Specifically, the high-temperature aerosol formed by the heating element heating the aerosol-generating matrix will condense and liquefy to produce condensate after encountering the relatively low temperature inner wall of the airway. After the inhalation, some condensate will be backblown and remain in the airway, and cannot be atomized a second time, resulting in a large amount of condensate, which is easy to corrode the circuit structure such as the microphone and circuit board in the aerosol atomizer, causing damage. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide an aerosol generating device, aiming to solve the problem of circuit structure damage caused by excessive accumulation of condensed liquid in some aerosol atomization devices.

[0004] A technical solution adopted by the present application to solve the technical problem is as follows: an aerosol generating device, used to heat an aerosol generating substrate to generate an aerosol, the aerosol generating device comprising: A first base, wherein the first base is provided with a liquid accumulation groove and an air inlet channel; A second base, the second base is stacked on the first base and seals the liquid storage tank, and the second base is provided with an air inlet hole and a liquid through hole; an atomizing assembly, the atomizing assembly having an atomizing air passage; the atomizing assembly is inserted on the second base, and the atomizing air passage communicates with the air inlet and the liquid passage; and A drainage bracket, the drainage bracket comprising a partition plate and a drainage tube connected to the partition plate; the partition plate is received in the liquid accumulation tank and divides the liquid accumulation tank into a ventilation cavity and a liquid accumulation cavity that are connected to each other, and the drainage tube is passed through the liquid hole; Wherein, the ventilation cavity is used to connect the air inlet channel and the air inlet hole, and the liquid accumulation cavity is connected to the air inlet channel and the drainage tube respectively, and the liquid in the liquid accumulation cavity enters the atomization airway through the drainage tube.

[0005] Optionally, the aerosol generating device further comprises: A liquid absorbing member, the liquid absorbing member is accommodated in the atomizing airway, one end of the liquid absorbing member is arranged adjacent to the liquid passage hole, and one end of the liquid absorbing member away from the liquid passage hole is connected to the atomizing assembly; The liquid in the liquid accumulation chamber can be introduced into the atomization assembly through the liquid passage hole and the liquid suction component in sequence.

[0006] Optionally, the atomization assembly comprises: A fixed cylinder, provided with the atomizing air passage and a liquid inlet connected to the atomizing air passage; a heating element, which is received in the fixing tube and disposed around the inner wall of the fixing tube; and A liquid guiding member, the liquid guiding member is located between the inner wall of the fixed cylinder and the heating member, and a portion of the liquid guiding member extends out from the liquid inlet; Wherein, the liquid guiding member is connected to an end of the liquid absorbing member away from the liquid passage hole.

[0007] Optionally, the atomizer assembly further comprises a positioning seat, the positioning seat is clamped and accommodated in the fixing cylinder, and the positioning seat is provided with: A vent hole, the vent hole is opened along the extension direction of the atomizing air passage, and the vent hole connects the atomizing air passage and the air inlet hole; An avoidance groove, the avoidance groove is opened on the outer wall of the positioning seat along the extension direction of the atomizing airway; Wherein, the liquid absorbing component is accommodated in the avoidance groove.

[0008] Optionally, the drainage bracket further comprises a first positioning portion, the first positioning portion is arranged on the surface of the partition plate away from the drainage tube; the bottom of the fluid collection tank is provided with a second positioning portion corresponding to the first positioning portion, and the second positioning portion is aligned with the first positioning portion; Wherein, the first positioning portion includes one of a positioning column and a positioning hole, and the second positioning portion includes the other of the positioning column and the positioning hole, and the positioning column is plugged into the corresponding positioning hole.

[0009] Optionally, at least part of the air intake passage is arranged in an S shape.

[0010] Optionally, the aerosol generating device further comprises: An air duct assembly, the air duct assembly is connected to the first base; an isolation air duct is provided in the air duct assembly, the isolation air duct connects the air inlet end of the air inlet channel with the outside of the aerosol generating device; the air duct assembly separates the isolation air duct from the control device of the aerosol generating device.

[0011] Optionally, the airway component comprises: an airway stent, wherein at least a portion of the isolated airway is located in the airway stent; An isolation sleeve, the isolation sleeve is sealingly connected between the airway support and the first base to form an outlet of the isolation airway; A sealing seat, the sealing seat is embedded in the airway support to form an entrance of the isolation airway; Wherein, a slope is provided at the top end of the outer periphery of the airway support, and the slope and the inner wall of the isolation sleeve form a liquid-blocking groove.

[0012] Optionally, a notch is provided at one end of the drainage tube close to the liquid absorbing member, and the notch penetrates the inner and outer tube walls of the drainage tube.

[0013] Optionally, the aerosol generating device further comprises: A suction nozzle is connected to the atomizing airway; an inner wall of the suction nozzle is provided with a drainage groove along the extending direction of the atomizing airway.

[0014] The present application provides an aerosol generating device. Since the partition plate divides the liquid accumulation tank into a ventilation chamber and a liquid accumulation chamber, when the user inhales and uses the aerosol generating device, the suction force will drive the air flow in the ventilation chamber on one side of the partition plate to flow out of the ventilation chamber from the air inlet hole, so that the air pressure in the liquid accumulation chamber on the other side of the partition plate is greater than the air pressure in the ventilation chamber, that is, a negative pressure is formed, so that the condensed liquid in the liquid accumulation chamber will be pressed into the drainage channel of the drainage bracket by the atmospheric pressure, and slowly squeezed upward to the atomization airway, and secondary atomized by the atomization component, so as to realize the consumption of the condensed liquid, effectively prevent the problem of damage to the internal circuit structure caused by excessive accumulation of condensed liquid, and ensure the product quality and service life.

[0015] At the same time, it can also prevent the condensate from accumulating too much and being directly sucked away by the user, thereby avoiding affecting the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural exploded diagram of the aerosol generating device provided by the present application; Figure 2 is a cross-sectional view of an aerosol generating device provided by the present application; Figure 3 yes Figure 2 A partial enlarged view of part A; Figure 4 It is an assembly diagram of the first base and the drainage bracket in the aerosol generating device provided in the present application; Figure 5 It is a three-dimensional structural diagram of the drainage stent in the aerosol generating device provided in the present application; Figure 6 is a three-dimensional structural diagram of the first base in the aerosol generating device provided by the present application; Figure 7 It is an assembly diagram of the atomizing component, the positioning seat and the liquid absorbing component in the aerosol generating device provided by the present application; Figure 8 It is a three-dimensional structural diagram of a positioning seat in the aerosol generating device provided by the present application; Fig. 9 is an assembly diagram of an airway component and a control device in an aerosol generating device provided in the present application; Fig.10 is a three-dimensional structural diagram of an airway stent in an aerosol generating device provided in the present application; Fig.11 is a three-dimensional structural diagram of the aerosol generating device provided by the present application; Fig.12 is a three-dimensional structural diagram of the aerosol generating device provided by the present application from another perspective; Fig.13 It is a three-dimensional structural diagram of the nozzle in the aerosol generating device provided in the present application.

[0017] Reference numerals: 1. aerosol generating device; 101. liquid accumulation tank; 102. pin; 103. liquid inlet gap; 104. containing tank; 105. microphone airway; 11. first base; 111. groove; 112. air inlet channel; 113. positioning hole; 114. first vertical channel; 115. boss; 12. second base; 121. air inlet; 13. Atomizing assembly; 131. Liquid guiding member; 132. Heating member; 14. Liquid absorbing parts; 15. Positioning seat; 152. Ventilation hole; 151. Avoidance groove; 16. Gasket; 161. Hole position; 17. Fiberglass tube; 2. airway assembly; 20. liquid blocking groove; 201. isolation airway; 202. inclined plane; 21. airway support; 211. butt joint body; 22. isolation sleeve; 23. sealing seat; 231. first air hole; 24. sliding plate; 240. pushing part; 241. second air hole; 3. Drainage stent; 301. Effusion cavity; 302. Ventilation cavity; 31. Drainage tube; 311. Drainage channel; 312. Notch; 32. Positioning column; 33. Mounting hole; 4. Control device; 41. Switch; 5. Microphone; 51. Microphone silicone cover; 6. Liquid storage cup; 61. Liquid storage cotton; 62. Sealed silicone rack; 621. Guide channel; 7. Suction nozzle; 71. Suction nozzle airway; 711. Drainage groove; 72. Liquid-absorbing cotton; 721. First through hole; 8. Shell; 801. Strip hole. DETAILED DESCRIPTION

[0018] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0019] Please refer to Figure 1-5 As shown, in a first embodiment of the present application, an aerosol generating device 1 is provided for heating an aerosol generating substrate to generate an aerosol.

[0020] The aerosol generating device 1 comprises a first base 11, a second base 12, an atomizing assembly 13 and a drainage bracket 3. The first base 11 is provided with a liquid accumulation tank 101 and an air inlet channel 112. The liquid accumulation tank 101 collects condensed liquid formed after the aerosol is condensed, and the air inlet channel 112 allows external air to enter the atomizing assembly 13. The second base 12 is stacked on the first base 11 and seals the liquid accumulation tank 101. The second base 12 is provided with an air inlet hole 121 and a liquid through hole. The air inlet hole 121 allows external air entering the liquid accumulation tank 101 to flow out from the liquid accumulation tank 101, and the liquid through hole allows the condensed liquid collected by the liquid accumulation tank 101 to flow to the atomizing assembly 13 for secondary use.

[0021] The atomizing component 13 heats and atomizes the liquid aerosol generating matrix to generate an aerosol. The atomizing component 13 has an atomizing airway for discharging the generated aerosol, so that the aerosol generated by heating the aerosol generating matrix when the atomizing component 13 is working can flow toward the suction nozzle 7 and be discharged. The atomizing component 13 is inserted on the second base 12, and the atomizing airway connects the air inlet hole 121 and the liquid passing hole, so as to ensure that the air and condensate inside and outside the liquid accumulation tank 101 can enter the atomizing airway through the air inlet hole 121 and the liquid passing hole respectively.

[0022] The drainage bracket 3 includes a partition plate and a drainage tube 31 connected to the partition plate. The partition plate is accommodated in the liquid accumulation tank 101 and divides the liquid accumulation tank 101 into a ventilation chamber 302 and a liquid accumulation chamber 301 that are connected. The drainage tube 31 is passed through the liquid hole to form a drainage channel 311. The ventilation chamber 302 and the liquid accumulation chamber 301 can be located on the upper and lower sides of the partition plate, respectively. The ventilation chamber 302 is used to connect the air inlet channel 112 and the air inlet hole 121, so that external air enters the ventilation chamber 302 through the air inlet channel 112, and flows out of the ventilation chamber 302 through the air inlet hole 121 and flows to the atomization airway. The liquid accumulation chamber 301 is connected to the air inlet channel 112 and the drainage tube 31 respectively, and the liquid formed by condensation of the aerosol accumulated in the liquid accumulation chamber 301 enters the atomization airway through the drainage tube 31.

[0023] Since the partition plate separates the liquid accumulation tank 101 into the ventilation chamber 302 and the liquid accumulation chamber 301, when the user inhales and uses the aerosol generating device 1, the suction force will drive the air flow in the ventilation chamber 302 located on one side of the partition plate to flow out of the ventilation chamber 302 from the air inlet 121, so that the air pressure in the liquid accumulation chamber 301 located on the other side of the partition plate is greater than the air pressure in the ventilation chamber 302, that is, a negative pressure is formed, so that the condensed liquid in the liquid accumulation chamber 301 is pressed into the drainage channel 311 of the drainage bracket 3 by the atmospheric pressure, and is slowly squeezed upward to the atomization airway, and is atomized twice by the atomization component 13, so as to realize the consumption of the condensed liquid, effectively prevent the problem of damage to the internal circuit structure caused by excessive accumulation of condensed liquid, ensure product quality and service life, and at the same time prevent the condensed liquid from being directly sucked away by the user after excessive accumulation, thereby avoiding affecting the user experience. The drainage bracket 3 may be provided with a plurality of drainage tubes 31 , and the plurality of drainage tubes 31 are evenly distributed on the partition, which helps the condensate to be quickly guided to the atomization assembly 13 by the drainage tubes 31 .

[0024] At least part of the air inlet channel 112 in the first base 11 is arranged in an S shape, which has an effect of hindering the backblowing of the aerosol, and can prevent the aerosol from directly flowing downward along the air inlet channel 112 to the outside of the aerosol generating device 1 after inhalation, and prevent the aerosol from flowing onto the circuit board and corroding the circuit board and its electronic components.

[0025] Please refer to Figure 1-6 As shown, further, the drainage bracket 3 also includes a first positioning portion, the first positioning portion is arranged on the surface of the partition plate away from the drainage tube 31, and the bottom of the liquid collection tank 101 is provided with a second positioning portion corresponding to the first positioning portion, and the second positioning portion is aligned with the first positioning portion to achieve accurate installation of the drainage bracket 3 in the liquid collection tank 101. Specifically, the first positioning portion includes one of the positioning column 32 and the positioning hole 113, and the second positioning portion includes the other of the positioning column 32 and the positioning hole 113. The positioning column 32 is plugged into the corresponding positioning hole 113 to achieve the installation of the drainage bracket 3 in the liquid collection tank 101, and at the same time, it can also ensure that there is a gap between the lower end surface of the partition plate and the bottom of the liquid collection tank 101 to form a liquid collection cavity 301.

[0026] Please refer to Figure 1-7 As shown, further, the aerosol generating device 1 also includes a liquid absorbing member 14, which is accommodated in the atomizing airway, one end of the liquid absorbing member 14 is arranged adjacent to the liquid passing hole, and one end of the liquid absorbing member 14 away from the liquid passing hole is connected to the atomizing assembly 13, and the liquid in the liquid accumulating cavity 301 can be introduced into the atomizing assembly 13 through the liquid passing hole and the liquid absorbing member 14 in sequence. The use of the liquid absorbing member 14 helps the liquid in the liquid accumulating cavity 301 to be quickly absorbed into the atomizing assembly 13 for secondary use. The lower end of the liquid absorbing member 14 is connected to the upper end of the drainage channel 311 of the drainage tube 31 but does not completely block the upper end of the drainage channel 311.

[0027] After condensed liquid accumulates in the liquid accumulation chamber 301, during suction, the user's suction force takes away the airflow in the ventilation chamber 302 above the drainage bracket 3. At this time, the pressure in the liquid accumulation chamber 301 is greater than the atmospheric pressure in the ventilation chamber 302, forming a negative pressure, so that the condensed liquid in the liquid accumulation chamber 301 is pressed into the drainage channel 311 of the drainage bracket 3 by the atmospheric pressure, and is slowly squeezed upward to the liquid absorption member 14, and then the condensed liquid is guided to the liquid guide member 131 by the liquid absorption member 14, and is atomized twice by the atomization component 13, thereby realizing the function of self-cleaning atomized condensed liquid. At the same time, it can reduce condensed liquid, avoid excessive accumulation of condensed liquid and erode the microphone 5 and the circuit board, and ensure product quality and service life.

[0028] Please continue to refer to Figure 3 and Figure 5 As shown, further, at least one notch 312 is provided at one end of the drainage tube 31 close to the liquid absorbent component 14, and the notch 312 penetrates the inner and outer tube walls of the drainage tube 31, so that the lower end of the liquid absorbent component 14 will not completely block the upper port of the drainage channel 311 of the drainage tube 31, thereby ensuring that the condensate can smoothly flow upward through the drainage channel 311 to the liquid absorbent component 14.

[0029] Please continue to refer to Figure 1-3 as well as Figure 7 As shown, in one embodiment, the atomization assembly 13 can be installed in the liquid storage cup 6 for use. The atomization assembly 13 includes a fixed cylinder, a heating element 132 and a liquid guide 131. The fixed cylinder is provided with an atomization airway and a liquid inlet connected to the atomization airway, and the fixed cylinder is used to install the heating element 132 and the liquid guide 131. The heating element 132 is accommodated in the fixed cylinder and arranged around the inner wall of the fixed cylinder. The liquid guide 131 is located between the inner wall of the fixed cylinder and the heating element 132, and is used to adsorb the liquid aerosol generation matrix stored in the aerosol generating device 1, so that the heating element 132 heats and atomizes. Part of the liquid guide 131 extends from the liquid inlet, which helps to adsorb the liquid aerosol generation matrix. The liquid guide 131 is connected to one end of the liquid absorbing element 14 away from the liquid hole, so that the condensed liquid adsorbed by the liquid absorbing element 14 is directly guided to the liquid guide 131, and is heated and atomized again by the heating element 132. The drainage bracket 3 is also provided with a plurality of mounting holes 33 penetrating the upper and lower end surfaces thereof, for mounting the pins 102 of the heating element 132 .

[0030] Please refer to Figure 1-3 as well as Figure 7 , Figure 8As shown, in another embodiment, the atomizer assembly 13 further includes a positioning seat 15, which is clamped and accommodated in the fixed cylinder, and the positioning seat 15 is used to limit the pins 102 of the lotion component and the heating component 132. The outer surface of the positioning seat 15 is formed with a plurality of tensioning protrusions distributed at intervals, and the cross section of the tensioning protrusion is arc-shaped, which contacts the inner wall of the fixed cylinder and forms a tension fixation, so that the positioning seat 15 is fixed to the fixed cylinder. The positioning seat 15 is provided with a vent hole 152 and an avoidance groove 151. The vent hole 152 is opened along the extension direction of the atomizing airway. The vent hole 152 connects the atomizing airway with the air inlet hole 121, so that the air flow flows out from the air inlet hole 121 and flows to the airway, ensuring that the aerosol generated by atomization is smoothly sucked out. The avoidance groove 151 is opened on the outer wall of the positioning seat 15 along the extension direction of the atomizing airway. The liquid absorbent 14 is accommodated in the avoidance groove 151. The positioning seat 15 realizes the limiting effect of the liquid absorbent 14 through the avoidance groove, which helps to enhance the stability of the structure. The liquid absorbent 14 can also be squeezed and positioned by the avoidance groove and the inner wall of the fixed cylinder, thereby ensuring the stable installation of the liquid absorbent 14.

[0031] Please refer to Figure 1 , Figure 2 , Fig. 9 and Fig.10 In one embodiment, the aerosol generating device 1 further includes an air duct component 2, which is connected to the first base 11. An isolation air duct 201 is provided in the air duct component 2. The isolation air duct 201 connects the air inlet end of the air inlet channel 112 with the outside of the aerosol generating device 1 and is used to guide external air into the aerosol generating device 1. The air duct component 2 separates the isolation air duct 201 from the control device 4 of the aerosol generating device 1 to prevent the condensate of the aerosol from penetrating into the control device 4 and causing damage.

[0032] The airway assembly 2 includes an airway support 21, an isolation sleeve 22 and a sealing seat 23. At least part of the isolation airway 201 is located in the airway support 21. The isolation sleeve 22 is sealed and connected between the airway support 21 and the first base 11 to form an outlet of the isolation airway 201. The sealing seat 23 is embedded in the airway support 21 to form an inlet of the isolation airway 201. The lower end of the first base 11 is provided with a first vertical channel 114 connected to the air inlet channel 112. The upper end of the airway support 21 has a butt joint body 211. The isolation sleeve 22 is sleeved on the butt joint body 211 to seal and assemble the butt joint body 211 at the lower end of the first vertical channel 114.

[0033] Among them, the top of the outer periphery of the airway support 21 is provided with an inclined surface 202, and the inclined surface 202 and the inner wall of the isolation sleeve 22 form a liquid blocking groove 20 to retain part of the backblown condensate. In the specific use process, if an aerosol enters the first vertical channel 114 through the air inlet channel 112 and enters the butt joint body 211, a small amount of condensate formed by the aerosol in contact with the first vertical channel 114 will flow along the inner wall of the first vertical channel 114 to the liquid blocking groove 20 to prevent the condensate from continuing to flow downward. Of course, the probability of the aerosol passing through the air inlet channel 112 is extremely small.

[0034] Please continue to refer to Figure 1-4 In one embodiment, a groove 111 is provided at the upper end of the first base 11, and a gasket 16 is embedded in the groove 111. The gasket 16 is provided with a hole 161 that passes through the upper and lower end surfaces, and a liquid accumulation groove 101 is formed between the hole 161 and the bottom of the groove 111. The outer size of the drainage bracket 3 is smaller than the size of the liquid accumulation groove 101, so that a liquid inlet gap 103 is formed between the outer surface of the drainage bracket 3 and the inner wall of the liquid accumulation groove 101, so that the condensed liquid flows downward to the liquid accumulation cavity 301 through the liquid inlet gap 103, avoiding accumulation on the ventilation cavity 302 / the upper end surface of the drainage bracket 3, so that the formed condensed liquid can flow quickly to the liquid accumulation cavity 301, so as to facilitate the secondary atomization of the condensed liquid.

[0035] Please continue to refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 In another embodiment, the first base 11 is provided with a boss 115, and the boss 115 is provided with a receiving groove 104. The microphone 5 is embedded and installed in the receiving groove 104 through a microphone silicone sleeve 51. The upper end of the boss 115 is provided with a microphone airway 105 that is connected to the receiving groove 104 and is curved. The microphone airway 105 is connected to the inner wall of the upper end of the groove 111, so that the microphone airway 105 is higher than the liquid accumulation cavity 301, thereby avoiding the phenomenon of condensation liquid entering the microphone airway 105. Since the liquid accumulation cavity 301 will not accumulate too much condensation liquid, the phenomenon of condensation liquid entering the microphone airway 105 can be avoided, and thus the phenomenon of condensation liquid corroding the microphone 5 will not exist.

[0036] Please refer to Figure 1 , Figure 2 , Fig. 9 and Fig.11In one embodiment, the airway component 2 also includes a sliding plate 24 slidably mounted on the upper end of the airway bracket 21, the sealing seat 23 is provided with a plurality of first air holes 231 connected to the isolation airway 201, and the outer periphery of the lower end opening of the first air hole 231 is formed with a sealing ring, the sealing ring is pressed against the upper end surface of the sliding plate 24 to form a sealing contact to ensure the sealing performance, the sliding plate 24 is provided with a plurality of second air holes 241, when the sliding plate 24 slides to the second air holes 241 corresponding to the first air holes 231, the isolation airway 201 is connected to the outside world, when the sliding plate 24 slides to the second air holes 241 and the first air holes 231 are staggered with each other, the isolation airway 201 is not connected to the outside world, the sliding plate 24 is connected to the switch 41 of the control device 4 for linkage, and the control device 4 is installed between the first base 11 and the airway bracket 21. During specific use, it is necessary to open the isolation airway 201 so that the isolation airway 201 is connected to the outside world. Then, the sliding plate 24 is pushed to make the second air hole 241 correspond to the first air hole 231, and the isolation airway 201 is connected to the outside world. At the same time, when the sliding plate 24 slides, the switch 41 of the control device 4 will be linked to start the control device 4 to make the entire aerosol atomization device work.

[0037] Please refer to Figure 1-3 , Fig.12 and Fig.13 In another embodiment, the second base 12 is embedded and fixed at the lower end of the liquid storage cup 6, the atomizer assembly 13 also extends into the liquid storage cup 6, and the liquid guide member 131 in the atomizer assembly 13 contacts the liquid storage cotton 61 arranged in the liquid storage cup 6, and an upper sealing silicone frame 62 is also provided at the upper end of the liquid storage cup 6, and a suction nozzle 7 is provided on the upper sealing silicone frame 62, and a suction nozzle airway 71 with a large outer side and a small inner side is provided in the suction nozzle 7, and the suction nozzle airway 71 is connected to the atomization airway, wherein the external port of the suction nozzle airway 71 is in a flat / elliptical trumpet shape, and the inner wall of the suction nozzle airway 71 is provided with a drainage groove 711 along the extension direction of the atomization airway, and the drainage groove 711 can concentrate the condensed liquid back to the atomizer assembly 13 by gravity and capillary action, and the drainage groove 711 can be provided on the inner wall with a small curvature on both sides of the suction nozzle airway 71.

[0038] When condensate is formed in the nozzle airway 71, the condensate will flow back to the liquid guide 131 of the atomization assembly 13 due to its own gravity and the capillary action of the drainage groove 711, so as to achieve secondary atomization heating and avoid the problem of liquid creeping. In other words, the design of the drainage groove 711 can prevent the condensate from accumulating in the nozzle airway 71 of the nozzle 7, preventing the user from inhaling the condensate. Among them, the groove surface of the drainage groove 711 is set to a smooth surface, which can better drain the condensate.

[0039] A glass fiber tube 17 is also provided at the top of the atomizing assembly 13, the upper end of which is butted against the guide channel 621 of the upper sealing silicone frame 62, and a liquid absorbing cotton 72 is also inlaid and installed at the lower end of the suction nozzle 7, which can absorb the liquid in the aerosol to a certain extent, achieving a certain filtering effect. The upper and lower ends of the first through hole 721 of the liquid absorbing cotton 72 are respectively butted against the lower end of the suction nozzle airway 71 and the upper end of the guide channel 621, the liquid storage cup 6 and the airway assembly 2 are both fixed in the housing 8, and the suction nozzle 7 is fixed at the upper end of the housing 8, forming a complete aerosol generating device 1.

[0040] The pushing portion 240 disposed at the lower end of the sliding plate 24 is exposed in the strip-shaped hole 801 at the lower end of the housing 8 , and the second air hole 241 can be exposed in the strip-shaped hole 801 .

[0041] The present application provides an aerosol generating device. Since the partition plate divides the liquid accumulation tank into a ventilation chamber and a liquid accumulation chamber, when the user inhales and uses the aerosol generating device, the suction force will drive the air flow in the ventilation chamber on one side of the partition plate to flow out of the ventilation chamber from the air inlet hole, so that the air pressure in the liquid accumulation chamber on the other side of the partition plate is greater than the air pressure in the ventilation chamber, that is, a negative pressure is formed, so that the condensed liquid in the liquid accumulation chamber will be pressed into the drainage channel of the drainage bracket by the atmospheric pressure, and slowly squeezed upward to the atomization airway, and secondary atomized by the atomization component, so as to realize the consumption of the condensed liquid, effectively prevent the problem of damage to the internal circuit structure caused by excessive accumulation of condensed liquid, ensure product quality and service life, and at the same time prevent the condensed liquid from being directly inhaled by the user after excessive accumulation, thereby avoiding affecting the user experience.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An aerosol generating device for heating an aerosol generating substrate to generate an aerosol, characterized in that: include: A first base, wherein the first base is provided with a liquid accumulation groove and an air inlet channel; A second base, the second base is stacked on the first base and seals the liquid storage tank, and the second base is provided with an air inlet hole and a liquid through hole; An atomizing assembly, wherein the atomizing assembly has an atomizing air passage; the atomizing assembly is inserted on the second base, and the atomizing air passage communicates with the air inlet and the liquid passage; as well as A drainage bracket, the drainage bracket comprising a partition plate and a drainage tube connected to the partition plate; the partition plate is received in the liquid accumulation tank and divides the liquid accumulation tank into a ventilation cavity and a liquid accumulation cavity that are connected to each other, and the drainage tube is passed through the liquid hole; Wherein, the ventilation cavity is used to connect the air inlet channel and the air inlet hole, and the liquid accumulation cavity is connected to the air inlet channel and the drainage tube respectively, and the liquid in the liquid accumulation cavity enters the atomization airway through the drainage tube.

2. The aerosol generating device according to claim 1, characterized in that: The aerosol generating device further comprises: A liquid absorbing member, the liquid absorbing member is accommodated in the atomizing airway, one end of the liquid absorbing member is arranged adjacent to the liquid passage hole, and one end of the liquid absorbing member away from the liquid passage hole is connected to the atomizing assembly; Wherein, the liquid in the liquid accumulation cavity can be introduced into the atomization component through the liquid passage hole and the liquid suction component in sequence.

3. The aerosol generating device according to claim 2, characterized in that: The atomizing assembly comprises: A fixed cylinder, provided with the atomizing air passage and a liquid inlet connected to the atomizing air passage; a heating element, which is received in the fixing tube and disposed around the inner wall of the fixing tube; and A liquid guiding member, the liquid guiding member is located between the inner wall of the fixed cylinder and the heating member, and a portion of the liquid guiding member extends out from the liquid inlet; Wherein, the liquid guiding member is connected to an end of the liquid absorbing member away from the liquid passage hole.

4. The aerosol generating device according to claim 3, characterized in that: The atomizing assembly further comprises a positioning seat, which is clamped and accommodated in the fixing cylinder, and the positioning seat is provided with: A vent hole, the vent hole is opened along the extension direction of the atomizing air passage, and the vent hole connects the atomizing air passage and the air inlet hole; An avoidance groove, the avoidance groove is opened on the outer wall of the positioning seat along the extension direction of the atomizing airway; Wherein, the liquid absorbing component is accommodated in the avoidance groove.

5. The aerosol generating device according to claim 1, characterized in that: The drainage bracket further comprises a first positioning portion, which is arranged on the surface of the partition plate away from the drainage tube; a second positioning portion corresponding to the first positioning portion is arranged at the bottom of the fluid collection tank, and the second positioning portion is aligned with the first positioning portion; Wherein, the first positioning portion includes one of a positioning column and a positioning hole, and the second positioning portion includes the other of the positioning column and the positioning hole, and the positioning column is plugged into the corresponding positioning hole.

6. The aerosol generating device according to claim 1, characterized in that: At least part of the air inlet passage is arranged in an S shape.

7. The aerosol generating device according to claim 1, characterized in that: The aerosol generating device further comprises: An air duct assembly, the air duct assembly is connected to the first base; an isolation air duct is provided in the air duct assembly, the isolation air duct connects the air inlet end of the air inlet channel with the outside of the aerosol generating device; the air duct assembly separates the isolation air duct from the control device of the aerosol generating device.

8. The aerosol generating device according to claim 7, characterized in that: The airway assembly comprises: an airway stent, wherein at least a portion of the isolated airway is located in the airway stent; An isolation sleeve, the isolation sleeve is sealingly connected between the airway support and the first base to form an outlet of the isolation airway; A sealing seat, the sealing seat is embedded in the airway support to form an entrance of the isolation airway; Wherein, a slope is provided at the top end of the outer periphery of the airway support, and the slope and the inner wall of the isolation sleeve form a liquid-blocking groove.

9. The aerosol generating device according to claim 2, characterized in that: A notch is arranged at one end of the drainage tube close to the liquid absorbing member, and the notch penetrates the inner and outer tube walls of the drainage tube.

10. The aerosol generating device according to claim 1, characterized in that The aerosol generating device further comprises: A suction nozzle is connected to the atomizing airway; an inner wall of the suction nozzle is provided with a drainage groove along the extending direction of the atomizing airway.

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