Aerosol-generating device

Abstract

The utility model provides an aerosol generating device which comprises a device body liquid storage device, and the liquid storage device comprises a first shell, a second shell, a first liquid storage cavity and a second liquid storage cavity, the suction nozzle is arranged on the first shell; the first air pipe is arranged in the first shell and defines a first air channel, and the first air pipe is provided with a first opening; the device main body comprises a second shell which defines a second liquid storage cavity; the atomization assembly is arranged in the second shell; the second air pipe is arranged in the second shell and defines a second air channel, and the second air channel is provided with a second opening; the airflow sensor is communicated with the second air passage and is used for sensing airflow change in the second air passage; the liquid storage device is connected with the device main body, and a liquid flow channel is established; the liquid storage device can move from a first position to a second position; when the liquid storage device is located at the first position, the liquid flow channel is closed, the first opening and the second opening are kept disconnected, and dry burning caused by the fact that the atomization assembly exhausts the liquid matrix in the second liquid storage cavity is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerosol generating technology, in particular to an aerosol generating device. BACKGROUND

[0002] A typical aerosol generating device in the prior art comprises a liquid reservoir and a device main body, the liquid reservoir is used to store a certain amount of liquid substrate, and the device main body is provided with an atomization assembly used to receive the liquid substrate and evaporate the liquid substrate by heating.

[0003] In some schemes, the liquid reservoir and the device main body are usually connected by a liquid guide column with a liquid guide hole, the first shell of the liquid reservoir is provided with a first protrusion, and the second shell of the device main body is provided with a guide groove and a limiting groove, when the liquid reservoir is installed to the device main body, the user can rotate the first shell of the liquid reservoir and the second shell of the device main body relatively, so as to open or close the liquid outlet of the liquid output member of the liquid reservoir. However, when the liquid outlet is closed, the user can still trigger the air flow sensor when smoking, so as to make the atomization assembly work, at this time, the liquid substrate in the second liquid storage cavity is at risk of being depleted, which may cause the atomization assembly to be high in temperature due to insufficient liquid supply, and thus generate aerosol components with safety risks. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem that when the liquid guide channel between the liquid reservoir and the atomization assembly in the aerosol generating device is closed, the atomization assembly can still work, thereby causing the aerosol generating device to easily generate aerosol components with safety risks.

[0005] One embodiment of the present application provides an aerosol generating device, comprising a device main body and a liquid reservoir used to supplement the device main body with liquid substrate,

[0006] The liquid reservoir comprises:

[0007] A first shell, the first shell defines a first liquid storage cavity used to store liquid substrate in the first shell;

[0008] A suction nozzle, the suction nozzle is provided on the first shell or belongs to a part of the first shell;

[0009] A first air tube, the first air tube is provided in the first shell and defines a first air passage connected to the suction nozzle, and an end of the first air tube away from the suction nozzle has a first opening;

[0010] The device main body comprises:

[0011] A second shell, the second shell defines a second liquid storage cavity used to store liquid substrate in the second shell;

[0012] An atomization assembly disposed in the second housing for atomizing the liquid substrate from the second liquid storage cavity to generate the aerosol;

[0013] A second air tube disposed in the second housing and defining a second air passage having a second opening that is mateable with the first opening;

[0014] An air flow sensor in communication with the second air passage for sensing a change in air flow in the second air passage;

[0015] The liquid reservoir is configured to be connectable with the device body to establish a liquid flow path between the two for providing the liquid substrate in the first liquid storage cavity to the second liquid storage cavity;

[0016] Wherein, in a state that the liquid reservoir is connected with the device body, the liquid reservoir is movable relative to the device body from a first position to a second position; when the liquid reservoir is in the first position, the liquid flow path is closed, and the first opening and the second opening are disconnected, thereby limiting the transmission of the suction negative pressure in the first air passage to the second air passage to trigger the air flow sensor; when the liquid reservoir is in the second position, the liquid flow path is open, and the first opening and the second opening are in airtight connection.

[0017] One embodiment of the present application provides an aerosol generating device, when the liquid reservoir is in the first position, there is an air cavity between the liquid reservoir and the device body, the air cavity communicates with the first air passage, and when the suction is applied to the suction nozzle, the air in the air cavity can be supplemented to the first air passage.

[0018] One embodiment of the present application provides an aerosol generating device, the device body includes a second support disposed in the second housing, the second support has a liquid inlet passage in communication with the second liquid storage cavity.

[0019] One embodiment of the present application provides an aerosol generating device, the device body further includes a first sealing member disposed in the second support, the first sealing member has a first through hole, the first through hole and the liquid inlet passage are in communication.

[0020] One embodiment of the present application provides an aerosol generating device, the liquid reservoir further includes a first support mounted in the first housing, the first support includes a liquid guide column extending away from the first liquid storage cavity, the liquid guide column is hollow and has at least one liquid guide hole formed therein.

[0021] One embodiment of the present application provides an aerosol generating device, when the liquid reservoir is in a first position, the liquid guide hole is located in the first through hole or the liquid inlet channel; when the liquid reservoir is in a second position, the liquid guide hole is located in the second liquid storage cavity.

[0022] One embodiment of the present application provides an aerosol generating device, the first support includes a second protruding part extending from the first support to the second support, the second support is provided with a avoiding part, the first support and the second support are positioned during installation through the second protruding part and the avoiding part.

[0023] One embodiment of the present application provides an aerosol generating device, the liquid reservoir further includes a liquid output member, the liquid output member has a liquid outlet for outputting liquid substrate from the first liquid storage cavity, the liquid output member is rotatable relative to the first support between a third position and a fourth position, when the liquid output member is in the third position, the liquid outlet is in communication with the liquid guide hole, when the liquid output member is in the fourth position, the liquid outlet is blocked, thereby preventing the first liquid storage cavity from outputting liquid substrate to the liquid guide hole.

[0024] One embodiment of the present application provides an aerosol generating device, the liquid reservoir includes a second sealing member, the second sealing member is provided with a protruding rib on one side of the liquid guide column, the protruding rib defines a range slot of the liquid output member on a rotating path.

[0025] One embodiment of the present application provides an aerosol generating device, the first shell has a first clamping part, the liquid output member has a second clamping part, the first shell and the liquid output member are connected through the first clamping part and the second clamping part.

[0026] One embodiment of the present application provides an aerosol generating device, the liquid output member includes a first sliding part, the first support includes a second sliding part, the liquid output member and the first support are rotatably connected through the first sliding part and the second sliding part.

[0027] One embodiment of the present application provides an aerosol generating device, the liquid reservoir is configured to be rotatable relative to the device body and movable in a longitudinal direction from a first position to a second position along a predetermined trajectory path.

[0028] One embodiment of the present application provides an aerosol generating device, the first housing includes a first protrusion, the second housing is defined with a guide groove and a limiting groove, the first protrusion is slidably arranged in the guide groove and the limiting groove, the guide groove defines a partial path of the first housing mounted to the second housing, and the limiting groove defines a path of the first support rotating from the first position to the second position.

[0029] One embodiment of the present application provides an aerosol generating device, the guide groove extends along the axial direction of the device body.

[0030] One embodiment of the present application provides an aerosol generating device, the limiting groove is configured as an inclined groove or an arc-shaped groove deviated from the axial direction of the device body.

[0031] One embodiment of the present application provides an aerosol generating device, the second liquid storage cavity is provided with a liquid storage member for absorbing and retaining the liquid substrate.

[0032] One embodiment of the present application provides an aerosol generating device, the inner side wall of the first air tube is provided with a first groove; and / or the inner side wall of the second air tube is provided with a second groove.

[0033] One embodiment of the present application provides an aerosol generating device, the liquid storage member includes a second sealing member arranged in the mounting groove of the liquid output member, the second sealing member has a third through hole, the third through hole is in communication with the first air tube, the inner side wall of the third through hole is provided with a third groove, and the third groove is in communication with the first groove.

[0034] The liquid flow channel is closed, and the first opening and the second opening are kept disconnected when the liquid storage member 1 is in the first position, so that the user cannot transmit negative pressure to the second air passage to trigger the air flow sensor when the user inhales, thereby avoiding the dry burning of the atomization assembly caused by the depletion of the liquid substrate in the second liquid storage cavity, and the aerosol composition with safety risks is generated. BRIEF DESCRIPTION OF DRAWINGS

[0035] One or more embodiments are illustrated by way of example in the figures that form a part of this disclosure and which are shown by way of example, not limitation, in the figures of the accompanying drawings and in which like references indicate similar elements, and in which:

[0036] Figure 1 A schematic view of an aerosol generating device according to one embodiment of the present application;

[0037] Figure 2 A schematic view of an aerosol generating device according to one embodiment of the present application;

[0038] Figure 3 schematic view of a liquid reservoir according to an embodiment of the application;

[0039] Figure 4 schematic view of a device body according to an embodiment of the application;

[0040] Figure 5 schematic view of a first seal according to an embodiment of the application;

[0041] Figure 6 schematic view of a first support according to an embodiment of the application;

[0042] Figure 7 schematic view of a liquid output according to an embodiment of the application;

[0043] Figure 8 schematic view of a liquid output according to an embodiment of the application;

[0044] Figure 9 schematic view of a second seal according to an embodiment of the application;

[0045] Figure 10 schematic view of a second seal according to an embodiment of the application;

[0046] Figure 11 schematic view of a first housing according to an embodiment of the application;

[0047] Figure 12 schematic view of a second housing according to an embodiment of the application;

[0048] Figure 13 schematic view of a second support and second air tube according to an embodiment of the application;

[0049] Figure 14 schematic view of a second support and second air tube according to an embodiment of the application;

[0050] Figure 15 schematic view of an atomisation assembly according to an embodiment of the application;

[0051] Figure 16 schematic view of a support tube according to an embodiment of the application;

[0052] Figure 17 schematic view of an aerosol-generating device according to an embodiment of the application.

[0053] In the drawings:

[0054] 10. An aerosol-generating device;

[0055] 1. A liquid reservoir;

[0056] 11. The first housing; 111. The first liquid storage cavity; 112. The first gap; 113. The first clamping portion; 114. The first protrusion;

[0057] 12. The first support; 121. The liquid guide column; 122. The liquid guide hole; 123. The second sliding portion; 124. The second protrusion;

[0058] 13. The first air tube; 131. The first air passage; 132. The first opening; 134. The first groove;

[0059] 14. The liquid output member; 141. The liquid outlet; 142. The mounting groove; 143. The second clamping portion; 144. The first sliding portion; 145. The fifth through hole; 1451. The fifth groove.

[0060] 15. The second sealing member; 151. The second through hole; 152. The protruding rib; 1521. The first protruding rib; 153. The range-limiting groove; 154. The third through hole; 1541. The third groove;

[0061] 16. The third sealing member;

[0062] 17. The suction nozzle;

[0063] 101. The liquid flow channel; 102. The air cavity;

[0064] 2. The device main body;

[0065] 21. The second housing; 211. The second liquid storage cavity; 212. The guide groove; 213. The limiting groove; 214. The third clamping portion; 215. The liquid storage member;

[0066] 22. The second support; 221. The liquid inlet channel; 222. The fourth clamping portion; 223. The avoiding portion;

[0067] 23. The second air tube; 231. The second air passage; 232. The second opening; 233. The second groove;

[0068] 24. The first sealing member; 241. The first through hole; 242. The fourth through hole;

[0069] 25. The atomization assembly; 251. The support tube; 2511. The fourth groove; 252. The liquid guide member; 253. The heating member;

[0070] 26. The battery assembly;

[0071] 27. The air flow sensor. DETAILED DESCRIPTION

[0072] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of embodiments of the present application, but not all embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of the present application.

[0073] The terms "first", "second", "third" in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number or sequence of the technical features indicated. All directional indications (such as upper, lower, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship or movement condition between components, and the directional indications will change accordingly if the specific posture (as shown in the drawings) changes. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0074] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that the embodiments described herein are merely examples from a multitude of embodiments that are in substantial compliance with the principles of the application.

[0075] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to or "coupled" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions as used herein are for illustrative purposes only and are not intended to be limiting.

[0076] One embodiment of the present application provides an aerosol-generating device 10, as shown in Figures 1-4 including a device body 2 and a reservoir 1 for replenishing the device body 2 with a liquid substrate.

[0077] The liquid reservoir 1 comprises a first housing 11, a suction nozzle 17 and a first air tube 13. The first housing 11 defines a first liquid storage cavity 111 therein for storing a liquid substrate. The suction nozzle 17 is provided on or as a part of the first housing 11. The first air tube 13 is provided in the first housing 11 and defines a first air passage 131 communicating with the suction nozzle 17, and has a first opening 132 at an end thereof facing away from the suction nozzle 17.

[0078] The device body 2 comprises a second housing 21, an atomization assembly 25, a second air tube 23 and an airflow sensor 27. The second housing 21 defines a second liquid storage cavity 211 therein for storing a liquid substrate. The atomization assembly 25 is provided in the second housing 21 and is configured to atomize the liquid substrate from the second liquid storage cavity 211 to generate an aerosol. The second air tube 23 is provided in the second housing 21 and defines a second air passage 231 having a second opening 232 that is configured to be docked with the first opening 132. The airflow sensor 27 is in communication with the second air passage 231 and is configured to sense a change in airflow in the second air passage 231.

[0079] The liquid reservoir 1 is configured to be connectable with the device body 2, thereby establishing a liquid flow path 101 between the first liquid storage cavity 111 and the second liquid storage cavity 211. In a connected state of the liquid reservoir 1 and the device body 2, the liquid reservoir 1 is movable relative to the device body 2 from a first position to a second position. When the liquid reservoir 1 is in the first position, the liquid flow path 101 is closed, and the first opening 132 and the second opening 232 are disconnected, thereby preventing a negative pressure in the first air passage 131 from being transmitted to the second air passage 231 to trigger the airflow sensor 27. When the liquid reservoir 1 is in the second position, the liquid flow path 101 is open, and the first opening 132 and the second opening 232 are in airtight connection.

[0080] The liquid reservoir 1 and the device body 2 of the aerosol generating device 10 of the present application, when the liquid reservoir 1 is in the first position, the liquid flow path 101 is closed, and the first opening 132 and the second opening 232 are disconnected, so that the user cannot transmit a negative pressure to the second air passage 231 to trigger the airflow sensor 27 when sucking, thereby preventing the atomization assembly 25 from being dry-burned due to depletion of the liquid substrate in the second liquid storage cavity 211, and thus generating aerosol components that pose a safety risk.

[0081] In an embodiment of the present application, the liquid reservoir 1 comprises the suction nozzle 17, and the first housing 11, the suction nozzle 17 and the air tube 13 are integrally formed. In an embodiment of the present application, the liquid reservoir 1 further comprises the suction nozzle 17, and the first housing 11, the suction nozzle 17 and the air tube 13 are connected by assembly.

[0082] In an embodiment of the present application, the liquid substrate can include a liquid containing tobacco substance containing volatile tobacco flavoring components, and can also be a liquid containing non-tobacco substance. The liquid substrate can include water, medicinal liquid, solvent, ethanol, plant extract, spice, flavoring agent, or vitamin mixture, etc. The spice can include areca extract, menthol, peppermint, spearmint oil, various fruit flavoring components, etc. but is not limited thereto. The flavoring agent includes components that can provide various flavors or tastes to the user. The vitamin mixture can be a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but is not limited thereto. Based on different properties of the liquid substrate, the aerosol substrate reservoir can be used in different fields such as medical, electronic aerosol atomization, etc.

[0083] In an embodiment of the present application, when the liquid reservoir 1 is in the first position, there is an air cavity 102 between the liquid reservoir 1 and the device body 2, the air cavity 102 communicates with the first air passage 131, and the air cavity 102 can communicate with the outside air. When the suction is applied to the suction nozzle 17, the air in the air cavity 102 can be supplemented to the first air passage 131.

[0084] In an embodiment of the present application, the first air tube 13 and the second air tube 23 can have first and second through holes, respectively. When the liquid reservoir 1 is in the first position, the first and second through holes are in communication, and the air in the air cavity 102 can enter the first air passage 131, thereby limiting the transmission of the suction negative pressure in the first air passage 131 to the second air passage 231 to trigger the air flow sensor 27. When the liquid reservoir 1 is in the second position, the first and second through holes are misaligned, and the first and second air passages 131 and 231 are in communication, and the suction negative pressure in the first air passage 131 can be transmitted to the second air passage 231 to trigger the air flow sensor 27.

[0085] In an embodiment of the present application, the liquid reservoir 1 includes a first bracket 12 mounted in the first housing 11, and the first housing 11 and the first bracket 12 define a first liquid storage cavity 111 for storing the liquid substrate. The first bracket 12 includes a liquid guide column 121 extending away from the first liquid storage cavity 111, and the liquid guide column 121 is hollow and has at least one liquid guide hole 122 formed therein. In an embodiment of the present application, the hollow liquid guide column 121 and the liquid guide hole 122 constitute a liquid flow passage 101 for providing the liquid substrate in the first liquid storage cavity 111 to the second liquid storage cavity 211.

[0086] In an embodiment of the present application, the device body 2 includes a second bracket 22 disposed in the second housing 21, and the second bracket 22 has a liquid inlet passage 221 communicating with the second liquid storage cavity 211, and the liquid guide column 121 can extend into the liquid inlet passage 221. In an embodiment of the present application, the second bracket 22 defines the second liquid storage cavity 211.

[0087] In one embodiment of this application, the liquid reservoir 1 includes a first support 12, and the device body 2 includes a second support 22. The second support 22 is provided with a liquid guiding column and a liquid guiding hole. The hollow liquid guiding column and the liquid guiding hole constitute a liquid flow channel 101 for providing the liquid matrix in the first liquid reservoir 111 to the second liquid reservoir 211.

[0088] In one embodiment of this application, the second support 22 and the second air tube 23 can be integrally formed. In another embodiment of this application, the second air tube 23 is inserted into the second support 22.

[0089] In one embodiment of this application, the device body 2 includes a first sealing member 24, which is disposed on the second bracket 22, such as... Figure 5 As shown, the first sealing member 24 has a first through hole 241, and the second bracket 22 has a liquid inlet channel 221, with the first through hole 241 and the liquid inlet channel 221 communicating. In one embodiment of this application, the first sealing member 24 has a fourth through hole 242, through which the second air tube 23 passes.

[0090] In one embodiment of this application, when the liquid reservoir 1 is in the first position, the liquid guide hole 122 is located in the first through hole 241 or the liquid inlet channel 221, so that the liquid matrix in the first liquid reservoir 111 cannot enter the second liquid reservoir 211; when the liquid reservoir 1 is in the second position, the liquid guide hole 122 is located in the second liquid reservoir 211, so that the liquid matrix in the first liquid reservoir 111 can enter the second liquid reservoir 211.

[0091] In one embodiment of this application, the number of liquid guiding columns 121 can be multiple, and the number of liquid guiding holes 122 corresponds to the number of liquid guiding columns 121. In one embodiment of this application, two liquid guiding holes 122 are formed on one liquid guiding column 121, and the two liquid guiding holes 122 on one liquid guiding column 121 are arranged opposite to each other. In one embodiment of this application, the number of liquid guiding columns 121 is two. When the liquid matrix in the liquid guiding hole 122 of one liquid guiding column 121 enters the second liquid storage chamber 211 from the first liquid storage chamber 111, the air pressure in the first liquid storage chamber 111 decreases. At this time, the air in the second liquid storage chamber 211 can enter the first liquid storage chamber 211 through the liquid guiding hole 122 of the other liquid guiding column 121, thereby preventing the liquid matrix in the first liquid storage chamber 111 from being unable to enter the second liquid storage chamber 211 due to the decrease in air pressure.

[0092] In an embodiment of the present application, the liquid guide hole 122 is arranged on the side wall of the liquid guide column 121. In an embodiment of the present application, the diameter of the liquid guide hole 122 is smaller than the inner diameter of the hollow portion of the liquid guide column 121. The diameter of the liquid guide hole 122 is relatively small with respect to the inner diameter of the hollow portion of the liquid guide column 121, so that the liquid substrate flows out of the hollow portion of the liquid guide column 121 at a slower speed, thereby avoiding the leakage of the liquid substrate from the atomization assembly 25 after too much liquid substrate is retained in the liquid storage member 215 of the second liquid storage cavity 211.

[0093] In an embodiment of the present application, the diameter of the liquid guide hole 122 is 0.5 mm-1.5 mm. In an embodiment of the present application, the liquid guide hole 122 is in the shape of a circular hole, a long strip-shaped hole or other shaped hole, and the diameter of the liquid guide hole 122 is 0.5 mm-1.5 mm, so that the liquid guide hole 122 has a capillary effect. When the aerosol generating device 10 is being puffed by a user, the air pressure in the second liquid storage cavity 211 decreases, and the air pressure in the first liquid storage cavity 111 remains unchanged, so that the liquid substrate in the first liquid storage cavity 111 enters the second liquid storage cavity 211 through the liquid guide column 121. When the aerosol generating device 10 is not in the working state, the air pressures in the first liquid storage cavity 111 and the second liquid storage cavity 211 remain balanced, the liquid guide hole 122 has a certain capillary effect on the liquid substrate therein, and the liquid substrate is retained in the liquid guide hole 122, thereby avoiding the continuous entry of the liquid substrate into the second liquid storage cavity 211 when the aerosol generating device 10 is not working, so that the liquid substrate is prevented from leaking through the atomization assembly 25. In an embodiment of the present application, the diameter of the liquid guide hole 122 can be 0.5 mm, 0.8 mm, 1.0 mm, 1.2 mm or 1.5 mm.

[0094] In an embodiment of the present application, when the liquid storage 1 is in the first position, the liquid guide hole 122 is located in the liquid inlet channel 221, and the liquid guide column 121 abuts against the liquid storage member 215. In an embodiment of the present application, when the liquid storage 1 is in the first position, the liquid guide hole 122 is located in the liquid inlet channel, and the liquid guide column 121 has a certain gap with the liquid storage member 215, and the gap is 0.5 mm-1.5 mm, so that the liquid guide member 121 and the liquid storage member have a capillary effect and can retain a certain amount of liquid substrate. In an embodiment of the present application, when the liquid storage 1 is in the first position, the liquid guide hole 122 is located in the second liquid storage cavity 211, and the liquid guide column 121 is inserted into the liquid storage member 215.

[0095] In an embodiment of the present application, the end of the liquid guide column 121 is tapered, the first through hole 241 of the first sealing member 24 includes a sealing film, the sealing film is tapered, and the liquid guide column 121 can pierce the sealing film.

[0096] In an embodiment of the present application, the outer side wall of the liquid guide column 121 and the inner side wall of the liquid flow passage 221 are kept at a distance of between 0.1 mm and 1.0 mm. At this time, the outer side wall of the liquid guide column 121 and the inner side wall of the liquid flow passage 221 also have a capillary effect. When the aerosol generating device 10 is being puffed by a user, the air pressure in the second liquid storage cavity 211 decreases, and the air pressure in the first liquid storage cavity 111 remains unchanged, so that the liquid substrate in the first liquid storage cavity 111 enters the second liquid storage cavity 211 through the liquid guide column 121; when the aerosol generating device 10 is not in operation, the air pressure in the first liquid storage cavity 111 and the second liquid storage cavity 211 remains balanced, and the outer side wall of the liquid guide column 121 and the inner side wall of the liquid flow passage 221 have a certain capillary effect on the liquid substrate therebetween, so that the liquid substrate is kept between the outer side wall of the liquid guide column 121 and the inner side wall of the liquid flow passage 221, thereby avoiding the continuous entry of the liquid substrate into the second liquid storage cavity 211 when the aerosol generating device 10 is not in operation, so that the liquid substrate is prevented from leaking through the atomization assembly 25. In an embodiment of the present application, the distance between the outer side wall of the liquid guide column 121 and the inner side wall of the liquid flow passage 221 can be 0.1 mm, 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm, or 1.0 mm.

[0097] In an embodiment of the present application, as shown in Figure 1 , the first seal 24 is located on the side of the second support 22 facing the liquid reservoir 1. When the liquid reservoir 1 is mounted to the device main body 2, the liquid guide column 121 of the first support 12 is first inserted into the first through hole of the first seal 24, and then inserted into the liquid inlet passage 221 of the second support 22.

[0098] In an embodiment of the present application, the liquid reservoir 1 comprises a liquid output member 14, as shown in Figures 7-8 , the liquid output member 14 has a liquid outlet 141 for outputting the liquid substrate from the first liquid storage cavity 111. The liquid output member 14 can be rotated relative to the first support 12 between a third position and a fourth position. When the liquid output member 14 is in the third position, the liquid outlet 141 is opened, so that the liquid outlet 141 is in communication with the liquid guide hole 122. When the liquid output member 14 is in the fourth position, the liquid outlet 141 is blocked and closed, so that the first liquid storage cavity 111 is prevented from outputting the liquid substrate to the second liquid storage cavity 211. The liquid reservoir 1 can be operatively connected to the device main body 2 in a detachable manner. After the liquid reservoir 1 is connected to the device main body 2, the device main body 2 can drive the liquid output member 14 to rotate. The liquid output member 14 remains connected to the device main body 2 and cannot be detached, so that the user can open and close the liquid outlet 141 according to the use condition, thereby preventing the liquid substrate from leaking.

[0099] In an embodiment of the present application, the liquid reservoir 1 comprises a second seal 15, as shown in Figures 9-10As shown, the second sealing member 15 is arranged in the mounting groove 142 of the liquid output member 14, and the second sealing member 15 is defined with a second through hole 151, which is in communication with the liquid outlet 142.

[0100] In an embodiment of the present application, the second sealing member 15 is provided with a protruding rib 152 on the side facing the liquid guide column 121, and the protruding rib 152 is defined with a range-limiting groove 153 of the liquid output member 14 on the rotating path.

[0101] In an embodiment of the present application, the protruding rib 152 includes a first annular protruding rib 1521, and the second through hole 151 is located in the first annular protruding rib 1521, which opens the liquid outlet 141 when the liquid output member 14 is in the third position, and the first annular protruding rib 1521 seals the second through hole 151 and the liquid inlet passage 221. In an embodiment of the present application, the protruding rib 152 includes a second annular protruding rib, and the first annular protruding rib 1521 and the second annular protruding rib are located at two ends of the range-limiting groove 153, which blocks the liquid outlet 141 when the liquid output member 14 is in the fourth position, and the second annular protruding rib is located between the second sealing member 15 and the liquid inlet passage 221 to prevent the liquid matrix in the liquid inlet passage 221 from leaking.

[0102] In an embodiment of the present application, as shown, Figure 11 The first shell 11 has a first clamping portion 113, and the liquid output member 14 has a second clamping portion 143, and the first shell 11 and the liquid output member 14 are connected through the first clamping portion 113 and the second clamping portion 143. The liquid output member 14 is fixedly connected with the first shell 11. In an embodiment of the present application, one of the first clamping portion 113 and the second clamping portion 143 is a buckle, and the other is a clamping groove.

[0103] In an embodiment of the present application, the liquid output member 14 includes a first sliding portion 144, and the first support 12 includes a second sliding portion 123, and the liquid output member 14 and the first support 12 are rotatably connected through the first sliding portion 144 and the second sliding portion 123. In an embodiment of the present application, one of the first sliding portion 144 and the second sliding portion 123 is a sliding rail, and the other is a sliding block. In an embodiment of the present application, the number of the first sliding portion 144 and the second sliding portion 123 corresponds. In an embodiment of the present application, the number of the first sliding portion 144 and the second sliding portion 123 is both 4.

[0104] In an embodiment of the present application, as shown, Figure 12As shown, the first shell 11 comprises a first protrusion 114, the second shell 21 is defined with a guide slot 212 and a limiting slot 213, the first protrusion 114 is slidably arranged in the guide slot 212 and the limiting slot 213, the guide slot 213 defines a partial path for the first shell 11 to be mounted to the second shell 21, and the limiting slot 213 defines a path for the liquid reservoir 1 to rotate from the first position to the second position.

[0105] In one embodiment of the present application, the movement of the liquid reservoir 1 and the device body 2 between the first position and the second position only includes linear displacement of the liquid reservoir 1 relative to the device body 2 in the axial direction. For example, when the liquid reservoir 1 is in the first position, the first shell and the second shell are spaced apart in the outer surface, the two liquid guide columns in the liquid reservoir 1 are located in the seal of the device body 2 or are surrounded by the seal on the liquid guide column, and at the same time, the first opening of the first air tube is spaced apart from the second opening of the second air tube. When the liquid reservoir 1 is linearly moved to the second position by the operating wire, the liquid guide hole on the liquid guide column penetrates out from the inside of the seal to enter the second storage cavity, and at the same time, the first opening of the first air tube moves downward to form an airtight connection with the second opening of the second air tube. In another embodiment of the present application, the movement of the liquid reservoir 1 and the device body 2 between the first position and the second position only includes rotation of the liquid reservoir 1 relative to the device body 2 in the circumferential direction; for example, there is a gap or air slot between the first air tube and the second air tube which constitutes a non-airtight connection in a certain rotation orientation.

[0106] In another embodiment of the present application, the movement of the liquid reservoir 1 and the device body 2 between the first position and the second position includes both rotation of the liquid reservoir 1 relative to the device body 2 in the circumferential direction and displacement of the liquid reservoir 1 in the longitudinal direction. As an example, the guide slot 212 extends along the axial direction of the device body 2, and the limiting slot 213 is configured as an inclined slot or an arc-shaped slot deviating from the axial direction of the device body 2. The first shell 11 is first mounted to the second shell 21 along the axial direction of the aerosol-generating device 10. In one embodiment of the present application, the first shell 11 is helically mounted to the second shell 21 relative to the second shell 21 along the axial direction of the aerosol-generating device 10, that is, during the process of mounting the first shell 11 to the second shell 21, there is both circumferential displacement and axial displacement.

[0107] In one embodiment of the present application, the first protrusion 114 is circular, so that the process of mounting the first shell 11 to the second shell 21 is smoother.

[0108] In one embodiment of the present application, as shown in FIG. 1, the first shell 11 comprises a first protrusion 114, and the second shell 21 is defined with a guide slot 212 and a limiting slot 213, the first protrusion 114 is slidably arranged in the guide slot 212 and the limiting slot 213, the guide slot 213 defines a partial path for the first shell 11 to be mounted to the second shell 21, and the limiting slot 213 defines a path for the liquid reservoir 1 to rotate from the first position to the second position. Figure 13As shown, the second housing 21 comprises a third clamping portion 214, and the second support 22 comprises a fourth clamping portion 222, and the second housing 21 and the second support 22 are connected through the third clamping portion 214 and the fourth clamping portion 222. In an embodiment of the present application, one of the third clamping portion 214 and the fourth clamping portion 222 is a buckle, and the other one is a clamping groove.

[0109] In an embodiment of the present application, as shown in Figure 4 As shown, the second liquid storage cavity 211 is provided with a liquid storage member 215 for absorbing and retaining the liquid substrate.

[0110] In an embodiment of the present application, the liquid storage member 215 comprises a capillary wick material, and the liquid storage member 215 is filled in at least part of the space of the second liquid storage cavity 211 for retaining the liquid substrate. In an embodiment of the present application, the liquid storage member 215 fills the second liquid storage cavity 211 completely, and the liquid substrate in the first liquid storage cavity 12 is all absorbed by the liquid storage member 215 after entering the second liquid storage cavity 211. In an embodiment of the present application, the liquid storage member 215 fills part of the space of the second liquid storage cavity 211, and a part of the liquid substrate in the first liquid storage cavity 111 entering the second liquid storage cavity 211 is absorbed by the liquid storage member 215, and another part is distributed in the space of the second liquid storage cavity 211 not filled by the liquid substrate. The liquid substrate in the second liquid storage cavity 211 is all or partially received or retained by the liquid storage member 215, so that the liquid substrate in the second liquid storage cavity 211 is not easy to leak through the atomization assembly 25 during the transportation or standing of the aerosol generating device 10, and a better taste can be obtained at the initial stage of the suction of the user using the aerosol generating device 10.

[0111] In an embodiment of the present application, the liquid storage member 215 can be made of an elastic organic porous material, and the liquid storage member 215 can have a hardness or flexibility between the generally flexible plant cotton / non-woven fabric (having a Shore hardness less than 20A) and the rigid porous ceramic / microporous metal (having a Shore hardness greater than 80A), so that the structure is stable and has very low expansion after absorbing and infiltrating the liquid substrate, and also has a certain hardness and can be easily fixed and retained. In an embodiment of the present application, the liquid storage member 215 can be a hard artificial cotton.

[0112] In an embodiment of the present application, the first support 12 comprises a second protrusion 124 extending from the first support 12 to the second support 22, the second support 22 is provided with a relief 223, and the first support 12 and the second support 22 are positioned during installation through the second protrusion 124 and the relief 223. In an embodiment of the present application, the number of the second protrusion 124 and the relief 223 corresponds. In an embodiment of the present application, the number of the second protrusion 124 is two, and the two second protrusions 124 are oppositely arranged.

[0113] In an embodiment of the present application, the inner side wall of the first air tube 13 is provided with a first groove 134, and the condensed aerosol in the first air tube 13 can flow back along the first groove 134, so as to avoid being sucked by the user. In an embodiment of the present application, the inner side wall of the second air tube 23 is provided with a second groove 233, and the condensed aerosol in the second air tube 23 can flow back along the second groove 233, so as to avoid being sucked by the user.

[0114] In an embodiment of the present application, the liquid output 14 has a fifth through hole 145 in communication with the first air tube 13, and the inner side wall of the fifth through hole 145 is provided with a fifth groove 1451 in communication with the first groove 134.

[0115] In an embodiment of the present application, the liquid reservoir 1 comprises a second seal 15 arranged in the mounting groove 142 of the liquid output 14, the second seal 15 has a third through hole 154 in communication with the first air tube 13, and the inner side wall of the third through hole 154 is provided with a third groove 1541 in communication with the first groove 134.

[0116] In an embodiment of the present application, when the liquid reservoir 1 is in the first position, the first air tube 13, the fifth through hole and the third through hole 154 are sequentially communicated, the first groove 134, the fifth groove 1451 and the third groove 1541 are sequentially communicated, and the condensed aerosol in the first air tube 13 can flow back along the first groove 134, the fifth groove 1451 and the third groove 1541.

[0117] In an embodiment of the present application, when the liquid reservoir 1 is in the second position, the first air tube 13 and the second air tube 23 are sealed, the first air tube 13, the fifth through hole, the third through hole 154 and the second air tube 23 are sequentially communicated, and the first groove 134, the fifth groove 1451, the third groove 1541 and the second groove 233 are sequentially communicated, and the condensed aerosol in the first air tube 13 can flow back along the first groove 134, the fifth groove 1451, the third groove 1541 and the second groove 233.

[0118] In an embodiment of the present application, the device body 2 comprises an atomization assembly 25, which is arranged in the second liquid storage cavity 211, and one end of the atomization assembly 25 is inserted into the second air tube 23.

[0119] In an embodiment of the present application, as shown in Figures 15-16 the atomization assembly 25 comprises a support tube 251, a liquid guide 252 and a heating body 253. The liquid guide 252 has oppositely arranged liquid guide surfaces and heating surfaces. The liquid guide 252 guides the liquid substrate from the liquid guide surfaces to the heating surfaces. One side of the heating surfaces is an atomization cavity. The liquid substrate is heated by the heating body 253 on the heating surfaces, and atomization generates aerosol into the atomization cavity. In an embodiment of the present application, the liquid guide 252 comprises a porous body, which can be a fiber, such as cotton fiber, polypropylene fiber, polyester fiber or nylon fiber, etc. The porous body can be a porous ceramic or a porous metal, and the present application does not limit the structure and composition of the porous body. In an embodiment of the present application, the support tube 251 is a steel tube.

[0120] In an embodiment of the present application, the atomization assembly 25 can comprise an ultrasonic element capable of high-frequency vibration under ultrasonic driving. The atomization assembly 25 uses ultrasonic vibration to atomize the liquid substrate to form aerosol. Of course, the atomization assembly 25 can also comprise other elements capable of atomizing the liquid substrate to form aerosol.

[0121] In an embodiment of the present application, the support tube 251 has a fourth groove 2511 for gas to pass through. When the liquid substrate in the second liquid storage cavity 211 is consumed and the air pressure decreases, external air can enter the second liquid storage cavity 211 through the fourth groove 2511, so that the liquid substrate in the second liquid storage cavity 211 can be smoothly supplied to the atomization assembly 25.

[0122] In an embodiment of the present application, the liquid storage device 1 further comprises a third sealing member 16 arranged on one side of the first support 12 facing the first liquid storage cavity 111. In an embodiment of the present application, the third sealing member 16 is also located between the first support 12 and the first air tube 13, and between the first support 12 and the first housing 11, to prevent the liquid substrate from leaking.

[0123] In an embodiment of the present application, the bottom of the second housing 21 of the device body 2 further comprises an air inlet 216, through which external air enters the aerosol generating device.

[0124] In one embodiment of the present application, the device body 2 further comprises a battery assembly 26, which provides power to the atomization assembly 25. In one embodiment of the present application, the battery assembly 26 provides a direct current power supply voltage in the range of about 2.5 V to about 9.0 V, and the battery assembly 26 can provide a direct current in the range of about 2.5 A to about 20 A. Typically, the battery assembly 26 is a rechargeable battery. Alternatively, the battery assembly 26 can be another form of charge storage device, such as a capacitor. The battery assembly 26 can need to be recharged, and can have a capacity that allows sufficient energy to be stored for one or more puffs; for example, the battery assembly 26 can have sufficient capacity to allow continuous aerosol generation for a predetermined period of time. In another example, the battery assembly 26 can have sufficient capacity to allow a predetermined number of activations of the aerosol-generating device.

[0125] In one embodiment of the present application, the device body 2 further comprises a circuit board and an airflow sensor, the circuit board is electrically connected to the battery assembly 26 and the atomization assembly 25, and a controller on the circuit board can control the charging and discharging of the battery assembly 26 and the working state of the atomization assembly 25. The airflow sensor is arranged on the circuit board, when the air passage in the aerosol-generating device 10 is closed, that is, the first air tube 13 and the second air tube 23 are in a sealed state, the airflow in the aerosol-generating device 10 can trigger the airflow sensor, so that the controller on the circuit board controls the atomization assembly to start working.

[0126] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification, and further, those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present application.

Claims

1. An aerosol generating device comprising a device main body and a reservoir for replenishing the device main body with a liquid substrate, characterized in that: the reservoir comprises: a first housing defining a first reservoir cavity for storing the liquid substrate therein; a mouthpiece provided in or as part of the first housing; a first air tube provided in the first housing and defining a first air passage communicating with the mouthpiece, an end of the first air tube distal to the mouthpiece having a first opening; the device main body comprises: a second housing defining a second reservoir cavity for storing the liquid substrate therein; an atomization assembly provided in the second housing for atomizing the liquid substrate from the second reservoir cavity to generate an aerosol; a second air tube provided in the second housing and defining a second air passage having a second opening that can be docked with the first opening; an airflow sensor in communication with the second air passage for sensing a change in airflow in the second air passage; the reservoir is configured to be connectable with the device main body, thereby establishing a liquid flow path between the two for providing the liquid substrate in the first reservoir cavity to the second reservoir cavity; wherein, in a state that the reservoir is connected with the device main body, the reservoir is movable relative to the device main body from a first position to a second position; when the reservoir is in the first position, the liquid flow path is closed, and the first opening and the second opening remain disconnected, thereby limiting the transmission of a suction negative pressure in the first air passage to the second air passage to trigger the airflow sensor; when the reservoir is in the second position, the liquid flow path is open, and the first opening and the second opening remain airtight connection.

2. The aerosol-generating device of claim 1, wherein, when the reservoir is in the first position, there is an air cavity between the reservoir and the device main body, the air cavity communicating with the first air passage, and when the mouthpiece is subjected to suction, air in the air cavity can be replenished to the first air passage.

3. The aerosol-generating device of claim 1, wherein, the device main body comprises a second support provided in the second housing, the second support having a liquid inlet passage in communication with the second reservoir cavity.

4. The aerosol-generating device of claim 3, wherein, the device main body further comprises a first seal provided in the second support, the first seal having a first through hole in communication with the liquid inlet passage.

5. The aerosol-generating device of claim 4, wherein, the reservoir further comprises a first support mounted in the first housing, the first support comprising a liquid guide column extending away from the first reservoir cavity, the liquid guide column being hollow and having at least one liquid guide hole formed therein.

6. The aerosol-generating device of claim 5, wherein, when the reservoir is in the first position, the liquid guide hole is located in the first through hole or the liquid inlet passage; when the reservoir is in the second position, the liquid guide hole is located in the second reservoir cavity. 7.The aerosol-generating device of claim 5, wherein, the first support comprises a second protrusion extending from the first support to the second support, the second support being provided with a relief portion, and the first support and the second support are positioned during mounting through the second protrusion and the relief portion. 8.The aerosol-generating device of claim 5, wherein, The liquid reservoir further comprises a liquid output member having a liquid outlet for outputting liquid matrix from the first liquid storage cavity, the liquid output member being rotatable relative to the first support between a third position and a fourth position, the liquid outlet being in communication with the liquid guide hole when the liquid output member is in the third position, and the liquid outlet being blocked when the liquid output member is in the fourth position, thereby preventing the first liquid storage cavity from outputting liquid matrix to the liquid guide hole.

9. The aerosol-generating device of claim 8, wherein, The liquid reservoir comprises a second sealing member provided with a protruding rib on a side facing the liquid guide column, the protruding rib defining a range slot for the liquid output member in a rotating path. 10.The aerosol-generating device of claim 8, wherein, The first housing has a first clamping portion, and the liquid output member has a second clamping portion, the first housing and the liquid output member being connected through the first clamping portion and the second clamping portion. 11.The aerosol-generating device of claim 8, wherein, The liquid output member comprises a first sliding portion, and the first support comprises a second sliding portion, the liquid output member and the first support being rotatably connected through the first sliding portion and the second sliding portion. 12.The aerosol-generating device of claim 1, wherein, The liquid reservoir is configured to be rotatable relative to the device body and movable in a longitudinal direction from a first position to a second position along a predetermined trajectory path. 13.The aerosol-generating device of claim 1, wherein, The first housing comprises a first protruding portion, and the second housing is defined with a guide slot and a limiting slot, the first protruding portion being slidably arranged in the guide slot and the limiting slot, the guide slot defining a partial path for the first housing to be mounted to the second housing, and the limiting slot defining a path for the first housing to be rotated from the first position to the second position.

14. The aerosol-generating device of claim 13, wherein, The guide slot extends in the axial direction of the device body. 15.The aerosol-generating device of claim 13, wherein, The limiting slot is configured as an inclined slot or an arc-shaped slot deviating from the axial direction of the device body.

16. The aerosol-generating device of claim 1, wherein, The second liquid storage cavity is provided with a liquid storage member for absorbing and retaining liquid matrix.

17. The aerosol-generating device of claim 1, wherein, An inner side wall of the first air tube is provided with a first groove; and / or an inner side wall of the second air tube is provided with a second groove.

18. The aerosol-generating device of claim 17, wherein, The liquid reservoir further comprises a second sealing member arranged in a mounting slot of the liquid output member, the second sealing member having a third through hole in communication with the first air tube, an inner side wall of the third through hole being provided with a third groove in communication with the first groove.

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