Aerosol-generating device and device body

Abstract

The utility model provides an aerosol generating device and a device main body, and the device main body comprises a first housing which is internally provided with a containing cavity; the first support is arranged in the first shell and comprises an air guide column defining a first airflow detection channel, and the air guide column protrudes towards the interior of the containing cavity; the airflow sensor is arranged on the side, away from the containing cavity, of the first support, and the airflow sensor communicates with the first airflow detection channel; the liquid blocking net is arranged on the side, away from the airflow sensor, of the air guide column and covers the opening of the first airflow detection channel. The air guide column protruding towards the accommodating cavity can prevent the liquid matrix from entering the airflow sensor through the air guide column; the liquid blocking net covers the opening of the first airflow detection channel for air to pass through and can prevent the liquid matrix from passing through, so that the liquid matrix is further prevented from entering the airflow sensor through the first airflow detection channel, and the airflow sensor is prevented from being damaged and self-started.

Description

Technical Field

[0001] Embodiments of the present application relate to the technical field of aerosol generation, and particularly to an aerosol generation device and a device body. Background Art

[0002] In existing aerosol generation devices, the air flow detection channel of an air flow sensor is usually directly communicated with an air inlet hole. Thus, condensed or unatomized liquid matrix easily enters the air flow sensor through the air flow detection channel, changing the capacitance between two electrode plates of the air flow sensor, which may cause damage and self-start of the air flow sensor. Summary of the Utility Model

[0003] To solve the problem that condensed or unatomized liquid matrix easily enters the air flow sensor through the air flow detection channel, resulting in damage and self-start of the air flow sensor.

[0004] The present application provides a device body for an aerosol generation device, including: a first housing having an accommodation cavity for accommodating a cartridge assembly therein; a first bracket disposed inside the first housing, the first bracket including a gas guiding column defining a first air flow detection channel, the gas guiding column protruding towards the inside of the accommodation cavity; an air flow sensor disposed on a side of the first bracket away from the accommodation cavity, and the air flow sensor communicating with the first air flow detection channel; a liquid blocking net disposed on a side of the gas guiding column away from the air flow sensor and covering an opening of the first air flow detection channel, the liquid blocking net having such a mesh size that air can pass through and liquid matrix can be prevented from entering the first air flow detection channel.

[0005] The present application provides a device body for an aerosol generation device, further including a first sealing member for holding the air flow sensor, the first bracket being located on a side of the first sealing member away from the air flow sensor, the first sealing member defining a second air flow detection channel, and the second air flow detection channel communicating with the first air flow detection channel.

[0006] The present application provides a device body for an aerosol generation device, wherein the liquid blocking net includes a polytetrafluoroethylene mesh layer.

[0007] The present application provides a device body for an aerosol generation device, wherein the liquid blocking net includes an adhesive layer, and the adhesive layer is located on a side of the polytetrafluoroethylene mesh layer close to the gas guiding column.

[0008] The present application provides a device body for an aerosol generation device, wherein the adhesive layer is annular.

[0009] The present application provides a device body for an aerosol generating device. The airflow sensor is arranged in a direction parallel to the first airflow detection channel along its central axis, and the first airflow detection channel deviates from the central axis of the airflow sensor.

[0010] The present application provides an aerosol generating device, including a cartridge assembly and the above-mentioned device body, and at least a part of the cartridge assembly can be received in the accommodation cavity.

[0011] The present application provides an aerosol generating device. The cartridge assembly includes a second housing and a second bracket. The second bracket is arranged in the second housing, and the second housing and the second bracket jointly define a liquid storage cavity.

[0012] The present application provides an aerosol generating device. The second bracket defines a third airflow detection channel communicating with the airway in the cartridge assembly. When the cartridge assembly is received in the accommodation cavity, the third airflow detection channel is aligned with the liquid blocking net.

[0013] The present application provides an aerosol generating device. The second bracket defines an air inlet channel communicating with the airway in the cartridge assembly. When the cartridge assembly is received in the accommodation cavity, the air inlet channel is offset from the liquid blocking net.

[0014] The device body of the aerosol generating device provided by the present application has a gas guiding column protruding towards the accommodation cavity, which can prevent the liquid matrix from entering the airflow sensor through the gas guiding column. The gas guiding column defines a first airflow detection channel. The liquid blocking net covers the opening of the first airflow detection channel for air to pass through and can prevent the liquid matrix from passing through, further avoiding the liquid matrix from entering the airflow sensor through the first airflow detection channel and preventing damage and self-starting of the airflow sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the figures do not constitute a proportional limitation.

[0016] Figure 1 It is a schematic diagram of the device body according to an embodiment of the present application;

[0017] Figure 2 It is a schematic diagram of the device body according to an embodiment of the present application;

[0018] Figure 3 It is a schematic diagram of the aerosol generating device according to an embodiment of the present application;

[0019] Figure 4Schematic diagram of an aerosol generating device according to an embodiment of the present application;

[0020] Figure 5 Schematic diagram of a liquid blocking net according to an embodiment of the present application;

[0021] Figure 6 Schematic diagram of a third seal according to an embodiment of the present application;

[0022] Figure 7 Schematic diagram of a second housing according to an embodiment of the present application.

[0023] In the figure:

[0024] 10. Aerosol generating device;

[0025] 1. Device main body;

[0026] 11. First housing; 111. Indicator light hole; 112. Accommodating cavity;

[0027] 12. First seal; 121. Second air flow detection channel;

[0028] 13. Air flow sensor;

[0029] 14. Liquid blocking net; 141. Polytetrafluoroethylene net layer; 142. Adhesive layer;

[0030] 15. First bracket; 151. First air flow detection channel; 152. Air guiding column;

[0031] 16. Battery assembly;

[0032] 17. Circuit board assembly;

[0033] 18. Charging assembly; 181. Charging port;

[0034] 191. Button switch; 192. Hall switch; 193. Magnetic element;

[0035] 2. Cartridge assembly;

[0036] 21. Second housing; 211. Liquid storage cavity; 212. Liquid injection hole; 213. Mounting hole;

[0037] 22. Second bracket; 221. Third air flow detection channel; 222. Air intake channel;

[0038] 23. Second seal; 231. First through hole;

[0039] 24. Third seal; 241. Plug body; 242. Fixed part; 243. Holding part;

[0040] 25. Atomization assembly;

[0041] 26. Magnetic shell. Detailed implementation manner

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0043] The terms "first", "second", and "third" in the present application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship or movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "including" and "having" 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 optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0044] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0045] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element, or there may be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are only for illustrative purposes and do not represent the only implementation manner.

[0046] The present application provides a device main body 1 for an aerosol generating device 10, which includes a first housing 11, a first bracket 15, an airflow sensor 13, and a liquid blocking net 14. The first housing 11 has an accommodation cavity 112 inside for accommodating a cartridge assembly 2; the first bracket 15 is disposed inside the first housing 11, and the first bracket 15 includes a gas guiding column 152 defining a first airflow detection channel 151, and the gas guiding column 152 protrudes towards the inside of the accommodation cavity 112; the airflow sensor 13 is disposed on a side of the first bracket 15 facing away from the accommodation cavity 112, and the airflow sensor 13 communicates with the first airflow detection channel 151; the liquid blocking net 14 is disposed on a side of the gas guiding column 152 away from the airflow sensor 13 and covers an opening of the first airflow detection channel 151, and the liquid blocking net 14 has such a mesh size that air can pass through and liquid matrix can be prevented from passing through and entering the first airflow detection channel 151. The device main body 1 of the aerosol generating device 10 provided by the present application has a gas guiding column 152 protruding towards the accommodation cavity 112, which can prevent the liquid matrix from entering the airflow sensor 13 through the gas guiding column 152; the gas guiding column 152 defines a first airflow detection channel 151, and the liquid blocking net 14 covers the opening of the first airflow detection channel 151 for air to pass through and can prevent the liquid matrix from passing through, further avoiding the liquid matrix from entering the airflow sensor 13 through the first airflow detection channel 151 and preventing damage and self-starting of the airflow sensor 13.

[0047] In an embodiment of the present application, an aerosol generating device 10 is provided, which includes a cartridge assembly 2 and the above-mentioned device main body 1. At least a part of the cartridge assembly 2 can be accommodated in the accommodation cavity 112, and the device main body 1 supplies electric energy to the cartridge assembly 2. In an embodiment of the present application, the cartridge assembly 2 is used to store and atomize a liquid matrix, and the cartridge assembly 2 is detachably connected to the device main body 1. When the liquid matrix in the cartridge assembly 2 is consumed, the user can replace the cartridge assembly 2.

[0048] In an embodiment of the present application, the device main body 1 includes a first bracket 15. Air passing through the first airflow detection channel 151 of the first bracket 15 triggers the airflow sensor 13. The liquid blocking net 14 is located on a side of the first airflow detection channel 151 away from the airflow sensor 14. At this time, the liquid blocking net 14 is located on a side of the first bracket 15 away from the airflow sensor 13 and covers the first airflow detection channel 151, so that air can enter the first airflow detection channel 151 through the liquid blocking net 14 to trigger the airflow sensor 13, while the liquid matrix cannot enter the first airflow detection channel 151 through the liquid blocking net 14.

[0049] In an embodiment of the present application, the device body 1 further includes a first seal 12 for holding the airflow sensor 13. The first bracket 15 is located on the side of the first seal 12 away from the airflow sensor 13. The first seal 12 defines a second airflow detection channel 121, and the second airflow detection channel 121 is in communication with the first airflow detection channel 151. At this time, the liquid-blocking net 14 is located on the side of the first bracket 15 away from the airflow sensor 13 and covers the first airflow detection channel 151, so that air can enter the second airflow detection channel 151 through the liquid-blocking net 14 and then pass through the second airflow detection channel 121 to trigger the airflow sensor 13, while the liquid matrix cannot enter the first airflow detection channel 151 through the liquid-blocking net 14.

[0050] In an embodiment of the present application, the liquid-blocking net 14 includes a polytetrafluoroethylene mesh layer 141. Polytetrafluoroethylene is a high molecular polymer obtained by polymerizing tetrafluoroethylene as a monomer, with the chemical formula (C2F4)n. It has excellent heat resistance and cold resistance and can be used for a long time at -180 - 260°C. This material has the characteristics of being resistant to acids, alkalis, and various organic solvents and is almost insoluble in all solvents. The polytetrafluoroethylene mesh layer allows air to pass through while blocking condensed or non-atomized liquid matrices.

[0051] In an embodiment of the present application, the liquid-blocking net 14 includes an adhesive layer 142. The adhesive layer 142 is located on the side of the polytetrafluoroethylene mesh layer 141 close to the air guide column 152, and the adhesive layer 142 is bonded to the first bracket 15. In an embodiment of the present application, the adhesive layer 142 includes a double-sided adhesive layer.

[0052] In an embodiment of the present application, the adhesive layer 142 is annular, and the polytetrafluoroethylene mesh layer 141 is exposed at the center of the annular adhesive layer 142, facilitating air to pass through the polytetrafluoroethylene mesh layer 141 to trigger the airflow sensor 13. In an embodiment of the present application, the number of the adhesive layers 142 is multiple and they are evenly distributed along the circumference of the polytetrafluoroethylene mesh layer 141. In an embodiment of the present application, the adhesive force of the adhesive layer 142 is 8.0 N / cm, the breaking strength is 85 N / cm, and the elongation at break is 12%.

[0053] In an embodiment of the present application, the hydrophobic level of the liquid-blocking net 14 is greater than or equal to the IPX6 waterproof level, so that the liquid matrix will not pass through the liquid-blocking net 14. In an exemplary embodiment of the present application, the liquid-blocking net 14 has a super oleophobic and hydrophobic effect, and the liquid matrix will not penetrate when dropped on the surface of the liquid-blocking net 14 for 720 h, and the liquid matrix can slide smoothly on the liquid-blocking net 14 with a surface inclination of 45°. As a test example, 5% NaCl is dropped on the surface of the liquid-blocking net 14 and does not penetrate for 720 h.

[0054] In one embodiment of the present application, the characteristic size of the mesh of the polytetrafluoroethylene mesh layer 141 is 300nm-500nm, and the characteristic size of the mesh refers to the diameter, width or length of the mesh in the cross section. For example, when the cross section of the mesh is circular, the characteristic size of the mesh refers to the diameter of the mesh cross section; when the cross section of the mesh is rectangular, the characteristic size of the mesh refers to the length and width of the mesh cross section.

[0055] In one embodiment of the present application, the airflow sensor 13 is arranged in a direction in which its central axis is parallel to the first airflow detection channel 151, and the first airflow detection channel 151 deviates from the central axis of the airflow sensor 13, so as to prevent the liquid matrix entering the first airflow detection channel 151 from directly dripping onto the airflow sensor 13, thereby preventing the airflow sensor 13 from self-starting.

[0056] In one embodiment of the present application, the cartridge assembly 2 includes a second shell 21 and a second bracket 22, the second bracket 22 is disposed in the second shell 21, and the second shell 21 and the second bracket 22 jointly define a liquid storage chamber 211. In one embodiment of the present application, the second shell 21 is connected to the first shell 11, and the liquid blocking net 14 is located between the second bracket 22 and the first bracket 15. In one embodiment of the present application, the second bracket 22 defines a third airflow detection channel 221 connected to the airway in the cartridge assembly 2, and when the cartridge assembly 2 is accommodated in the accommodating chamber 112, the third airflow detection channel 221 is aligned with the liquid blocking net 14.

[0057] In one embodiment of the present application, the second bracket 22 defines an air inlet channel 222 connected to the airway in the cartridge assembly 2, and the air inlet channel 222 is connected to the third airflow detection channel 221. The air entering the second bracket 22 from the air inlet channel 222 can flow to the third airflow detection channel 221, thereby triggering the airflow sensor 13. When the cartridge assembly 2 is accommodated in the accommodating chamber 112, the air inlet channel 222 is staggered with the liquid blocking net 14, which can prevent the condensed liquid matrix from entering the first gas detection channel 151.

[0058] In one embodiment of the present application, the cigarette cartridge assembly 2 includes a second seal 23, which is located between the second bracket 22 and the liquid-blocking net 14. The second seal 23 has a first through hole 231, and the first through hole 231 is connected to the third airflow detection channel 221. The third seal 23 seals the second bracket 22 and the liquid-blocking net 14, so that the air in the third airflow detection channel 221 can pass through the liquid-blocking net 14, then pass through the first airflow detection channel 151, and then pass through the second airflow detection channel 121 to trigger the airflow sensor 13.

[0059] In one embodiment of the present application, the cartridge assembly 2 includes a third seal 24. The side wall of the second housing 21 has a liquid injection hole 212, and the third seal 24 is disposed in the liquid injection hole 212 to seal the liquid injection hole 212. In one embodiment of the present application, the third seal 24 includes a plug body 241, a fixing portion 242, and a holding portion 243. The second housing 21 has a liquid injection hole 212 and a mounting hole 213. The fixing portion 242 passes through the mounting hole 242 and is fixed to the second housing 21. The plug body 241 is disposed in the liquid injection hole 212 to seal the liquid injection hole 212. The holding portion 243 is connected to the plug body 241 and the fixing portion. The user can remove the plug body 241 through the holding portion 243 to open the liquid injection hole 212. When the user opens the liquid injection hole 212, the fixing portion 242 of the third seal 24 is fixed to the mounting hole 213 while the plug body 241 is opened, thereby preventing the third seal 24 from being lost during the refueling process. In one embodiment of the present application, the third seal 24 is flexible silicone.

[0060] In one embodiment of the present application, the device main body 1 includes a battery assembly 16 and a circuit board assembly 17. The circuit board assembly 17 is electrically connected to the battery assembly 16. In one embodiment of the present application, the cartridge assembly 2 includes an atomization assembly 25. The atomization assembly 25 is disposed in the second housing 21 and adjacent to the liquid storage cavity 211 for atomizing the liquid matrix in the liquid storage cavity 211 to generate an aerosol. In one embodiment of the present application, the cartridge assembly 2 includes an electrode post, and the device main body 1 includes an electrode pin. The cartridge assembly and the device main body 1 are electrically connected through the electrode post and the electrode pin.

[0061] In one embodiment of the present application, the device main body 1 includes a magnetic element 193, and the cartridge assembly 2 includes a magnetic housing 26. The cartridge assembly 2 and the device main body 1 are connected through the magnetic element 193 and the magnetic housing 26. In one embodiment of the present application, the magnetic element 193 is a magnet, and the magnetic housing 26 is an iron housing. In one embodiment of the present application, the first housing 11 of the device main body 1 defines a receiving cavity 112, and the cartridge assembly 2 is received in the receiving cavity 112.

[0062] In one embodiment of the present application, the device main body 1 includes a charging assembly 18 and a charging port 181. The charging assembly 18 is electrically connected to the circuit board assembly 17. The charging port 181 can be charged by an external circuit, and the charging port 181 can allow air to enter. The air entering through the charging port 181 can enter the cartridge assembly 2 through the air intake passage 222, thereby triggering the airflow sensor through the third airflow detection passage 221.

[0063] In an embodiment of the present application, the device body 1 includes a button switch 191 and a Hall switch 192. Both the button switch 191 and the Hall switch 192 are electrically connected to the circuit board assembly 17. The button switch 191 is configured to adjust the atomization power when the user presses it three times and shut down the device when the user presses it five times. The Hall switch 192 is used to open and close the circuit. In an embodiment of the present application, an indicator light is also provided on the circuit board assembly 17. The indicator light is electrically connected to the circuit board assembly 17. Correspondingly, an indicator light hole 111 is provided on the first housing 11, and the indicator light is exposed to the indicator light hole 111. The indicator light is used to display the battery level.

[0064] It should be noted that the description and drawings of the present application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Further, for those of ordinary skill in the art, improvements or changes can be made based on the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present application.

Claims

1. An apparatus body for an aerosol generating device, characterized in that, Comprising: A first housing having an accommodation cavity inside for accommodating a cartridge assembly; A first bracket disposed inside the first housing, the first bracket including an air guide column defining a first air flow detection channel, and the air guide column protruding towards the inside of the accommodation cavity; An air flow sensor disposed on a side of the first bracket away from the accommodation cavity, and the air flow sensor communicating with the first air flow detection channel; A liquid blocking net disposed on a side of the air guide column away from the air flow sensor and covering an opening of the first air flow detection channel, the liquid blocking net having such a mesh size that air can pass through and liquid matrix can be blocked from entering the first air flow detection channel.

2. The device body for an aerosol generating device according to claim 1, characterized in that, Further comprising a first seal for holding the air flow sensor, the first bracket being located on a side of the first seal away from the air flow sensor, the first seal defining a second air flow detection channel, and the second air flow detection channel communicating with the first air flow detection channel.

3. The device body for an aerosol generating device according to claim 1, characterized in that, The liquid blocking net includes a polytetrafluoroethylene mesh layer.

4. The device body for an aerosol generating device according to claim 3, characterized in that, The liquid blocking net includes an adhesive layer, and the adhesive layer is located on a side of the polytetrafluoroethylene mesh layer close to the air guide column.

5. The device body for an aerosol generating device according to claim 4, characterized in that, The adhesive layer is annular.

6. The device body for an aerosol generating device according to claim 1, characterized in that, The air flow sensor is arranged in a direction in which its central axis is parallel to the first air flow detection channel, and the first air flow detection channel deviates from the central axis of the air flow sensor.

7. An aerosol generating device, characterized in that, Comprising a cartridge assembly and the device main body according to any one of claims 1-6, at least a part of the cartridge assembly being receivable in the accommodation cavity.

8. The aerosol generating device according to claim 7, wherein The cartridge assembly includes a second housing and a second bracket, the second bracket being disposed inside the second housing, and the second housing and the second bracket jointly defining a liquid storage cavity.

9. The aerosol generating device according to claim 8, characterized in that, The second bracket defines a third air flow detection channel communicating with an airway inside the cartridge assembly, and when the cartridge assembly is received in the accommodation cavity, the third air flow detection channel is aligned with the liquid blocking net.

10. The aerosol generating device according to claim 9, wherein, The second bracket defines an air intake channel communicating with an airway inside the cartridge assembly, and when the cartridge assembly is received in the accommodation cavity, the air intake channel is offset from the liquid blocking net.

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