Aerosol-generating device

Abstract

The utility model provides an aerosol generating device. The aerosol generating device comprises a shell assembly, an aerosol generating assembly and a control assembly, the atomization assembly is arranged in the shell assembly; the main air channel is arranged in the shell assembly and used for guiding air to the atomization assembly so as to carry aerosol generated by the atomization assembly; the first circuit board is arranged in the shell assembly; the airflow sensor is arranged on the first circuit board, and the airflow sensor is used for sensing airflow change in the main air channel; the first airflow channel is arranged adjacent to the first side of the airflow sensor and is used for communicating the first side of the airflow sensor with external air; the airflow detection channel is arranged adjacent to the second side of the airflow sensor and is used for communicating the second side of the airflow sensor with the main air channel; one end of the second airflow channel communicates with the main air channel, and the other end communicates with the first side of the airflow sensor, so that the first side of the airflow sensor communicates with airflow of the main air channel. The aerosol generating device comprises the second airflow channel, so that delayed closing and false starting of the airflow sensor are avoided.

Description

Technical Field

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

[0002] An aerosol generating device typically includes an airflow sensor. When a user inhales the aerosol generating device, air flows inside the aerosol generating device. The airflow sensor senses the flow of air and generates a trigger signal, thereby automatically turning on the aerosol generating device.

[0003] The first side of an existing airflow sensor is connected to the outside air, and the second side, opposite the first side, is connected to the main airway. When a user inhales, the air flow in the main airway generates negative pressure, which in turn creates a pressure difference between the second side and the first side, triggering the airflow sensor to activate. However, when the user stops inhaling, the pressure difference between the second and first sides of the airflow sensor does not disappear immediately, causing the airflow sensor to shut down later. Alternatively, in other usage scenarios, slight vibrations of the aerosol generating device or slight deformation of the aerosol generating device's housing assembly may cause airflow disturbances in the main airway, which can also cause a pressure difference between the second and first sides of the airflow sensor, causing the airflow sensor to malfunction in an unintended state. Utility Model Content

[0004] In order to solve the technical problem that the airflow sensor is delayed in shutting down or easily started by mistake, the present application provides the following technical solution for the aerosol generating device.

[0005] The present application provides an embodiment of an aerosol generating device, comprising: a shell assembly; an atomizing assembly, arranged in the shell assembly, for atomizing a liquid matrix to generate an aerosol; a main airway, arranged in the shell assembly, the main airway being used to guide air to the atomizing assembly to carry the aerosol generated by the atomizing assembly; a first circuit board, arranged inside the shell assembly; an airflow sensor, arranged on the first circuit board, the airflow sensor being used to sense airflow changes in the main airway; a first airflow channel, arranged adjacent to a first side of the airflow sensor, for connecting the first side of the airflow sensor with external air; an airflow detection channel, arranged adjacent to a second side of the airflow sensor, the airflow detection channel being used to connect the second side of the airflow sensor with the main airway; a second airflow channel, one end of the second airflow channel being connected to the main airway by gas, and the other end of the second airflow channel being connected to the first side of the airflow sensor, so that the airflow of the first side of the airflow sensor and the main airway are connected.

[0006] The present application provides an embodiment of an aerosol generating device, which further includes a first seal, which is arranged on a side of the first circuit board away from the airflow sensor, and the first seal and the first circuit board jointly define the first airflow channel and the second airflow channel.

[0007] The present application provides an embodiment of an aerosol generating device, wherein a first groove and a second groove are provided on the first sealing member, the first groove and the first circuit board jointly define at least a portion of the first airflow channel, and the second groove and the first circuit board jointly define at least a portion of the second airflow channel.

[0008] The present application provides an embodiment of an aerosol generating device, wherein a collecting groove is formed at the intersection of the first groove and the second groove, and the collecting groove is arranged opposite to the airflow sensor and connected to the first side of the airflow sensor.

[0009] The present application provides an embodiment of an aerosol generating device, wherein the first sealing member has a first through hole and a second through hole, the first through hole is in airflow communication with the first airflow channel, and the second through hole is in airflow communication with the second airflow channel.

[0010] The present application provides an embodiment of an aerosol generating device, which further includes a base, wherein the base is provided with a first air inlet and a second air inlet, wherein the first air inlet is in airflow communication with the first through hole, and the second air inlet is in airflow communication with the second through hole.

[0011] The present application provides an embodiment of an aerosol generating device, wherein a charging component is provided on the first circuit board, and the charging component is provided at the second air inlet.

[0012] The present application provides an embodiment of an aerosol generating device, wherein an air hole penetrating the first circuit board is provided on a side of the first circuit board away from the airflow sensor, and the air hole is in gas communication with the first side of the airflow sensor.

[0013] The present application provides an embodiment of an aerosol generating device, wherein the aerosol generating device further comprises a second sealing member disposed on the first circuit board, wherein the second sealing member is configured to provide a seal between the first side of the airflow sensor and the second side of the airflow sensor.

[0014] The present application provides an embodiment of an aerosol generating device, which further includes a first bracket, the first circuit board is arranged on the first bracket, the first bracket is provided with a third through hole, and the third through hole gas connects the main airway and the second side of the airflow sensor.

[0015] The present application provides an embodiment of an aerosol generating device, wherein the aerosol generating device further includes a battery assembly, the first bracket defines a first accommodating cavity, and the battery assembly is disposed in the first accommodating cavity.

[0016] The present application provides an embodiment of an aerosol generating device, which further includes a second circuit board. The second circuit board is arranged perpendicular to the first circuit board, and the second circuit board is located on one side of the first bracket.

[0017] The aerosol generating device of the present application includes a second airflow channel, one end of the second airflow channel is connected to the main airway, and the other end of the second airflow channel is connected to the first side of the airflow sensor, so that the air pressure changes in the main airway are quickly transmitted to the first side of the airflow sensor, avoiding delayed shutdown of the airflow sensor; in addition, when the aerosol generating device vibrates slightly or the shell assembly of the aerosol generating device is slightly deformed, the gas disturbance generated in the main airway can also be quickly transmitted to the first side of the airflow sensor through the second airflow channel, avoiding the generation of an air pressure difference between the first side of the airflow sensor and the second side of the airflow sensor, and avoiding false startup of the airflow sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 A schematic diagram of an aerosol generating device according to an embodiment of the present application;

[0020] Figure 2 A schematic diagram of an aerosol generating device according to an embodiment of the present application;

[0021] Figure 3 A schematic diagram of an aerosol generating device according to an embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of a first sealing member according to an embodiment of the present application;

[0023] Figure 5 A schematic diagram of a first circuit board according to an embodiment of the present application;

[0024] Figure 6 A schematic diagram of a first circuit board according to an embodiment of the present application;

[0025] Figure 7 This is a schematic diagram of a first bracket according to an embodiment of the present application;

[0026] Figure 8This is a schematic diagram of a first bracket according to an embodiment of the present application;

[0027] Figure 9 A schematic diagram of a second bracket according to an embodiment of the present application;

[0028] Figure 10 A schematic diagram of a housing according to an embodiment of the present application;

[0029] Figure 11 A schematic diagram of a base according to an embodiment of the present application;

[0030] Figure 12 This is a schematic diagram of a lens according to an embodiment of the present application.

[0031] In the picture:

[0032] 10. Aerosol generating device;

[0033] 1. Shell assembly; 11. Base; 111. First air inlet; 112. Second air inlet; 113. Second clamping portion; 12. Housing; 121. First clamping slot; 122. Second clamping slot; 13. First bracket; 131. Third through hole; 132. First accommodating chamber; 133. Air guide column; 134. Seventh through hole; 135. Positioning column; 136. Screw hole; 14. Second bracket; 141. Liquid storage chamber; 142. Liquid injection hole; 143. Fourth through hole; 144. Pressure relief hole; 145. Pressure relief slot; 15. Suction nozzle; 16. Air pipe; 17. Bolt

[0034] 2. Atomization assembly; 21. Main airway; 22. Airflow detection channel;

[0035] 3. First circuit board; 31. Charging assembly; 32. Air hole; 33. Sixth through hole; 34. Positioning hole; 35. Mounting hole;

[0036] 4. Airflow sensor; 41. First airflow channel; 42. Second airflow channel; 43. First side of airflow sensor; 44. Second side of airflow sensor;

[0037] 5. First sealing member; 51. First groove; 52. Second groove; 53. Collecting groove; 54. First through hole; 55. Second through hole;

[0038] 61, second sealing member; 62, third sealing member; 63, liquid absorbing member; 631, fifth through hole; 64, fourth sealing member;

[0039] 7. Battery components;

[0040] 8. Second circuit board; 81. Light source; 82. Support member; 83. Flexible circuit board; 84. Connector; 85. Switch assembly;

[0041] 9. Display screen; 91. First display area; 92. Second display area; 93. Icon display element; 94. Color LCD screen; 95. Lens; 951. First clamping portion. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or suggesting the quantity or order of the technical features indicated relative to importance or implicitly indicating the indicated technical features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement situation between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or equipment that includes a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0044] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

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

[0046] The present application provides an aerosol generating device 10, such as Figure 1-4As shown, it includes a housing assembly 1, an atomizer assembly 2, a first circuit board 3, an airflow sensor 4, a main airway 21, a first airflow channel 41, a second airflow channel 42, and an airflow detection channel 22. The atomizer assembly 2 is disposed within the housing assembly 1 and is used to atomize a liquid matrix to produce an aerosol. The main airway 21 guides air to the atomizer assembly 2 to carry away the aerosol produced by the atomizer assembly 2. The first circuit board 3 is disposed within the housing assembly 1. The airflow sensor 4 is disposed on the first circuit board 3 and senses airflow changes within the main airway 21. The first airflow channel 41 is disposed adjacent to a first side 43 of the airflow sensor and is used to connect the first side 43 of the airflow sensor to the outside air. The airflow detection channel 22 is disposed adjacent to a second side 44 of the airflow sensor and is used to connect the second side 44 of the airflow sensor to the main airway 21. When gas flows in the main airway 21, a pressure difference is generated between the first side 43 of the airflow sensor and the second side 44 of the airflow sensor, triggering the airflow sensor 4. One end of the second airflow channel 42 is in gas communication with the main airway 21 , and the other end of the second airflow channel 42 is in gas communication with the first side 43 of the airflow sensor, so that the first side 43 of the airflow sensor and the main airway 21 are in gas communication with each other.

[0047] The aerosol generating device 10 of the present application includes a second airflow channel 42, one end of the second airflow channel 42 is connected to the main airflow channel 21, and the other end of the second airflow channel 42 is connected to the first side 43 of the airflow sensor, so that the air pressure changes in the main airflow channel 21 are quickly transmitted to the first side 43 of the airflow sensor, avoiding delayed shutdown of the airflow sensor 4; at this time, when the aerosol generating device 10 vibrates slightly or the shell assembly 1 of the aerosol generating device 10 is slightly deformed, the gas disturbance generated in the main airflow channel 21 can also be quickly transmitted to the first side 43 of the airflow sensor through the second airflow channel 42, avoiding the generation of an air pressure difference between the first side 43 of the airflow sensor and the second side 44 of the airflow sensor, and avoiding the false start-up of the airflow sensor 4.

[0048] In one embodiment of the present application, liquid matrix can comprise the liquid that contains the tobacco material that contains volatile tobacco flavor component, can also be the liquid that comprises non-tobacco material.Liquid matrix can comprise water, medicinal liquid, solvent, ethanol, plant extract, spices, flavoring agent or vitamin mixture etc., and spices can comprise menthol, peppermint, spearmint oil, various fruity fragrance components etc., but is not limited to this. Flavoring agent comprises the composition that can provide various fragrances or local flavor to the user. Vitamin mixture can be the mixture that is mixed with at least one in vitamin A, vitamin B, vitamin C and the vitamin E, but is not limited to this.Based on the different attributes of liquid matrix, aerosol matrix reservoir can be used for different fields, such as, medical treatment, electronic aerosol atomization etc.

[0049] In one embodiment of the present application, the atomizing assembly 2 may include a liquid absorbing element and a heating element, wherein the heating element is disposed on the liquid absorbing element. The liquid absorbing element may be a porous body for guiding the liquid matrix into the atomization range of the heating element. The heating element is used to heat the atomized aerosol matrix, thereby generating an aerosol. The porous body may be a fiber, such as cotton fiber, polypropylene fiber, polyester fiber, or nylon fiber. The porous body may be a porous ceramic or porous metal, and the present application does not limit the structure and composition of the porous body.

[0050] In one embodiment of the present application, the atomizer assembly 2 further includes a support tube, the liquid absorbing element is disposed within the support tube, and the heating element is disposed on a side of the liquid absorbing element facing away from the support tube. In one embodiment of the present application, the support tube is disposed between the second bracket 14 and the fourth sealing member 64, and is adjacent to the liquid storage chamber 141. The liquid matrix in the liquid storage chamber 141 can pass through the support tube and enter the liquid absorbing element.

[0051] In one embodiment of the present application, Figure 4 As shown, the aerosol generating device 10 includes a first seal 5 , which is arranged on a side of the first circuit board 3 away from the airflow sensor 4 . The first seal 4 and the first circuit board 4 together define a first airflow channel 41 and a second airflow channel 42 .

[0052] In one embodiment of the present application, a first groove 51 and a second groove 52 are provided on the first sealing member 5, and the first groove 51 and the first circuit board 3 jointly define at least a portion of the first airflow channel 41, and the second groove 52 and the first circuit board 3 define at least a portion of the second airflow channel 42.

[0053] In one embodiment of the present application, the first circuit board 3 is flat, and the flat first circuit board 3 and the first groove 51 and the second groove 52 of the first sealing member 5 define a first airflow channel 41 and a second airflow channel 42 respectively.

[0054] In another embodiment of the present application, the surface of the first sealing member 5 is planar, and the surface of the first circuit board 3 is provided with a first groove and a second groove, so that the first side and the second groove of the first circuit board 3 and the first sealing member 5 with a planar surface form a first airflow channel and a second airflow channel.

[0055] In another embodiment of the present application, a collecting groove 53 is formed at the intersection of the first groove 51 and the second groove 52. The collecting groove 53 and the airflow sensor 4 are arranged opposite to each other and are connected to the first side 43 of the airflow sensor, so that the airflow in the first airflow channel 41 and the second airflow channel 42 flows through the first groove 51 and the second groove 52 and then collects in the collecting groove 53, so that the air pressure at the first side 43 of the airflow sensor is consistent with the external air and the main air duct 21.

[0056] In one embodiment of the present application, the first sealing member 5 has a first through hole 54 and a second through hole 55, the first through hole 54 and the first airflow channel 41 are in airflow communication, the second through hole 55 and the second airflow channel 42 are in airflow communication, the first through hole 54 and the first airflow channel 41 guide the external air to the first side 43 of the airflow sensor so that the airflow sensor 4 is in air communication, and the second through hole 55 and the second airflow channel 42 connect the first side 43 of the airflow sensor to the main airway 21 in airflow communication.

[0057] In one embodiment of the present application, Figure 2 As shown, the aerosol generating device 10 includes a base 11, and the base 11 is provided with a first air inlet hole 111 and a second air inlet hole 112. The first air inlet hole 111 and the first through hole 54 are connected in airflow, and the second air inlet hole 112 and the second through hole 55 are connected in airflow. The first air inlet hole 111, the first through hole 54, and the first airflow channel 41 guide the external air to the first side 43 of the airflow sensor to connect the airflow sensor 4 with the air, and the second air inlet hole 112, the second through hole 55, and the second airflow channel 42 connect the first side 43 of the airflow sensor with the main airway 21 in airflow communication.

[0058] In one embodiment of the present application, a charging component 31 is provided on the first circuit board 3, and the charging component 31 is provided at the second air inlet 62, so that the second air inlet 62 can serve as both a charging port and an air inlet, making the structure of the aerosol generating device 10 more compact and the appearance more beautiful.

[0059] In one embodiment of the present application, an air hole 32 is provided on the side of the first circuit board 3 away from the air flow sensor 4, which passes through the first circuit board 3. The air hole 32 is in gas communication with the first side 43 of the air flow sensor, so that the air pressure of the first side 43 of the air flow sensor can be kept consistent with that of the outside atmosphere.

[0060] In one embodiment of the present application, the first circuit board 3 is provided with a sixth through hole 32, the first bracket 13 includes an air guide column 133, the air guide column 133 passes through the sixth through hole 32, and a seventh through hole 134 is provided on the air guide column 133. The seventh through hole 134 passes through the sixth through hole 32 of the first bracket 13, the second through hole of the first seal 5 and the second air inlet hole 112 of the base 11, so that external air passes through the seventh through hole 134 on the air guide column 133 into the main air duct, and brings the aerosol generated by the atomization component 2 to the user through the trachea 16 and the nozzle 15.

[0061] In one embodiment of the present application, the aerosol generating device 10 further includes a second seal 61 disposed on the first circuit board 3. The second seal 61 is used to provide a seal between the first side 43 of the airflow sensor and the second side 44 of the airflow sensor, so that the gas between the first side 43 of the airflow sensor and the second side 44 of the airflow sensor is isolated.

[0062] In one embodiment of the present application, the housing assembly 1 of the aerosol generating device 10 includes a housing 2. The housing 2 and the base 1 together form the exterior surface of the aerosol generating device 10. In one embodiment of the present application, one of the base 1 and the housing 2 is provided with a slot, and the other of the base 1 and the housing 2 is provided with a buckle, and the base 1 and the housing 2 are connected via the slot and the buckle.

[0063] In one embodiment of the present application, the aerosol generating device 10 includes a first bracket 13, the first circuit board 3 is arranged on the first bracket 13, and the first bracket 13 is provided with a third through hole 131. The third through hole 131 connects the main airway 21 and the second side 44 of the airflow sensor to the gas, so that the airflow on the second side 44 of the airflow sensor and the main airway 21 are connected.

[0064] In one embodiment of the present application, the aerosol generating device 10 includes a first bracket 13, a second bracket 14, and a third seal 62. The first bracket 13 and the second bracket 14 are connected by the third seal 62, thereby isolating the first bracket 13 from the second bracket 14. In one embodiment of the present application, the first bracket 13 and the second bracket 14 are both tubular bodies with one end open, and the third seal 62 is located on the side of the first bracket 13 and the second bracket 14 with the opening.

[0065] In one embodiment of the present application, a first accommodating cavity 132 is defined between the first bracket 13 and the third sealing member 62. The first accommodating cavity 132 is used to accommodate a battery assembly 7. The battery assembly 7 is electrically connected to the first circuit board 3. The battery assembly 7 is used to provide electrical energy to the atomizer assembly 2.

[0066] In one embodiment of the present application, the first circuit board 3 includes a positioning hole 33, and the first bracket 13 includes a positioning post 135. The first circuit board 3 and the first bracket 13 are positioned by the positioning hole 33 and the positioning post 135. In one embodiment of the present application, the first circuit board 3 includes a mounting hole 35, the first bracket 14 includes a screw hole 136, and the housing assembly 1 further includes a bolt 17. The bolt 17 passes through the mounting hole 36 and the screw hole 136 to achieve assembly, so that the first circuit board 3 is fixed to the first bracket 13.

[0067] In one embodiment of the present application, a liquid storage chamber 141 is defined between the second bracket 14 and the third sealing member 62 . The liquid storage chamber 141 is used to store liquid matrix. The atomization assembly 2 is adjacent to the liquid storage chamber and atomizes the liquid matrix in the liquid storage chamber 141 into an aerosol.

[0068] In one embodiment of the present application, one end of the second bracket 14 is open, and the closed end of the second bracket 14 has an injection hole 142, through which the liquid matrix can be injected into the liquid storage chamber 141. In one embodiment of the present application, the housing assembly 1 also includes a suction nozzle 15, which is disposed at the closed end of the second bracket 14. The suction nozzle 15 can be held by the user to inhale the aerosol generating device 10. In one embodiment of the present application, the second bracket 14 is provided with a fourth through hole 143, and the housing assembly 1 also includes an air pipe 16. One side of the fourth through hole 16 is connected to the air pipe 16, and the other side of the fourth through hole 16 is connected to the suction nozzle 15, so that the aerosol generated by the atomization assembly 2 reaches the user through the air pipe 16, the fourth through hole 143, and the suction nozzle 15. In one embodiment of the present application, the second bracket 14 is further provided with a pressure relief hole 144, which is provided on the side of the second bracket 14 facing the suction nozzle 15. The pressure relief hole 14 is a capillary pore that can pass gas, but can maintain a certain liquid matrix, allowing air to pass through but not allowing the liquid matrix to pass through. When the liquid matrix in the liquid storage chamber 141 is consumed, the air pressure in the liquid storage chamber 141 decreases. At this time, external air can enter the liquid storage chamber 141 through the pressure relief hole 144, thereby ensuring normal liquid supply to the liquid storage chamber 141.

[0069] In one embodiment of the present application, the housing assembly 1 further includes a fourth sealing member 64, which is located between the second bracket 14 and the suction nozzle 15 to prevent leakage of the liquid matrix in the liquid storage chamber 141. In one embodiment of the present application, a liquid absorbing member 63 is further disposed between the fourth sealing member 64 and the second bracket 14. The liquid absorbing member 63 has a fifth through hole 631 that communicates with the fourth through hole 143. The liquid absorbing member 63 can absorb condensed liquid matrix in the suction nozzle 15.

[0070] In one embodiment of the present application, the second bracket 14 includes a pressure relief groove 145, and the pressure relief groove 145 of the second bracket 14 and the fourth seal 64 jointly define a pressure relief channel, which connects the fourth through hole 143 and the pressure relief hole 144, so that external air connected to the fourth through hole 143 can enter the liquid storage chamber 141 from the pressure relief hole 144 through the pressure relief channel.

[0071] The present application provides an aerosol generating device 10, comprising: a housing assembly 1, a first bracket 13, a second bracket 14, a first circuit board 3, a second circuit board 8, and a display screen 9. The first bracket 13 and the second bracket 14 are disposed within the housing assembly 1. The first bracket 13 defines a first accommodating cavity 132 for accommodating the battery assembly 7, and the second bracket 14 defines a liquid storage cavity 141 for storing a liquid matrix. The first bracket 13 and the second bracket 14 are arranged along the longitudinal axis of the housing assembly 1. The first circuit board 3 is located on a side of the first bracket 13 away from the second bracket 14. The second circuit board 8 is arranged perpendicular to the first circuit board 3 and extends parallel to the longitudinal axis of the housing assembly 1 beside the first bracket 13 and the second bracket 14. The display screen 9 is located on a side of the second circuit board 8 away from the first bracket 13 and the second bracket 14, and the display screen 9 at least partially covers the first bracket 13 and the second bracket 14.

[0072] The display screen 9 of the present application is arranged on the side of the second circuit board 8 away from the first bracket 13 and the second bracket 14. The first bracket 13 and the second bracket 14 are distributed along the longitudinal axis of the shell assembly 1, so that the display screen 9 is located on one side of the shell assembly 1 and has a larger display area, which can display more content.

[0073] In one embodiment of the present application, the display screen 9 includes a first display area 91 and a second display area 92 distributed longitudinally, the first display area 91 is located on the side of the second circuit board 8 away from the first accommodating cavity 132, and the second display area 92 is located on the side of the second circuit board 8 away from the liquid storage cavity 141.

[0074] In one embodiment of the present application, the first display area 91 and the second display area 92 can display different content. In one embodiment of the present application, the first display area 91 is used to display content such as battery level, fuel level, number of puffs, and a startup animation. In one embodiment of the present application, the second display area 92 is used to display content such as a logo and icons.

[0075] In one embodiment of the present application, a plurality of light sources 81 are disposed on a side of the second circuit board 8 facing away from the liquid storage chamber 141. The second display area 92 includes an icon display element 93. When the light sources 81 are in operation, the icon display element 93 is illuminated, thereby displaying a designated icon. In one embodiment of the present application, the light sources 81 are electrically connected to the second circuit board 8. In one embodiment of the present application, the cost of the icon display element 93 is lower than that of the color LCD screen 94.

[0076] In one embodiment of the present application, a support member 82 is provided between the second display area 92 and the second circuit board 8, and the support member 82 is used to support the second display area 92. The support member 82 can also maintain a certain distance between the second display area 92 and the second circuit board 8, meeting the function of the light source 81 to display icons through the icon display member 93.

[0077] In one embodiment of the present application, the support member 82 may include a plurality of support columns located between the second display area 92 and the second circuit board 8 .

[0078] In one embodiment of the present application, the support member 82 is frame-shaped and includes a first opening 821 and a second opening 822 . The first opening 821 and the second opening 822 are arranged opposite to each other. The light source 81 is arranged in the first opening 821 and the second display area 92 is arranged in the second opening 822 .

[0079] In one embodiment of the present application, the aerosol generating device 10 further includes a color LCD screen 94 located between the second circuit board 8 and the first display area 91 . The color LCD screen 94 and the second circuit board 8 are connected via a flexible circuit board 83 .

[0080] Color LCD screen is abbreviated as TFT (Thin Film Transistor), which refers to thin film transistor, meaning that each liquid crystal pixel is driven by a thin film transistor integrated behind the pixel, so that screen information can be displayed at high speed, high brightness and high contrast. It is one of the best LCD color display devices.

[0081] In other embodiments of the present application, the aerosol generating device 10 includes a color LCD screen, which is located between the second circuit board 8 and the display screen 9. The color LCD screen is located on the side of the second circuit board 8 away from the first bracket 13 and the second bracket 14, and the display screen 9 at least partially covers the first bracket 13 and the second bracket 14. The aerosol generating device 10 is provided with a single, large color LCD screen. Without considering cost, the aerosol generating device 10 can achieve a better display effect than a case where an icon display is provided.

[0082] In one embodiment of the present application, a flexible circuit board 83 is provided on the second circuit board 8, and the first display area 91 is connected to the second circuit board 8 via a connector 84 and the flexible circuit board 83. In one embodiment of the present application, the flexible circuit board 83 can be provided on the second circuit board 8 by a process such as SMT.

[0083] In one embodiment of the present application, the display screen includes a lens 95 , through which the icon display element 93 and the color liquid crystal screen 94 can display designated content.

[0084] In one embodiment of the present application, the lens 95 comprises a semi-transparent lens. In one embodiment of the present application, the lens 95 comprises a black semi-transparent lens.

[0085] In one embodiment of the present application, a switch assembly 85 is provided on the second circuit board 8, and a portion of the switch assembly 85 passes through the display screen 9 and is exposed to the lens 18. In one embodiment of the present application, the switch assembly 85 is used to control the switch and working power of the aerosol generating device 10.

[0086] In one embodiment of the present application, the housing assembly 1 includes a shell 12 , the shell 12 includes a first snap-fit ​​groove 121 , the lens 95 includes a first snap-fit ​​portion 951 , and the lens 18 and the shell 12 are connected via the first snap-fit ​​portion 951 and the first snap-fit ​​groove 121 .

[0087] In one embodiment of the present application, the housing assembly 1 includes a base 11, the outer shell 12 includes a second snap-fitting groove 122, and the base 11 includes a second snap-fitting portion 113. The base 11 and the outer shell 12 are connected via the second snap-fitting groove 122 and the second snap-fitting portion 113. In one embodiment of the present application, the base 11, the outer shell 12, and the lens 18 collectively form the exterior surface of the aerosol generating device.

[0088] In one embodiment of the present application, a charging assembly 31 is provided on the first circuit board 3, and the charging assembly 31 is exposed to the base 11. In one embodiment of the present application, the first circuit board 3 is used to control the charging process of the battery assembly 7, and the second circuit board 8 is used to control the discharge of the battery assembly 7 and store data.

[0089] It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An aerosol generating device, characterized in that include: housing assembly; an atomizing assembly, disposed in the housing assembly, for atomizing a liquid matrix to generate an aerosol; A main air passage is provided in the housing assembly, and is used to guide air to the atomizing assembly to carry the aerosol generated by the atomizing assembly; a first circuit board, disposed inside the housing assembly; an airflow sensor, disposed on the first circuit board, and configured to sense airflow changes in the main airway; a first airflow channel disposed adjacent to a first side of the airflow sensor and configured to connect the first side of the airflow sensor to external air; an airflow detection channel, disposed adjacent to the second side of the airflow sensor, the airflow detection channel being configured to connect the second side of the airflow sensor with the main airway; A second airflow channel, one end of which is connected to the main airway, and the other end of which is connected to the first side of the airflow sensor, so that the first side of the airflow sensor and the main airway are in airflow communication.

2. The aerosol generating device according to claim 1, wherein The aerosol generating device further includes a first seal, which is disposed on a side of the first circuit board away from the airflow sensor. The first seal and the first circuit board jointly define the first airflow channel and the second airflow channel.

3. The aerosol generating device according to claim 2, wherein: The first seal is provided with a first groove and a second groove. The first groove and the first circuit board together define at least a portion of the first airflow channel. The second groove and the first circuit board together define at least a portion of the second airflow channel.

4. The aerosol generating device according to claim 3, wherein: A collecting groove is formed at the intersection of the first groove and the second groove. The collecting groove is arranged opposite to the airflow sensor and is connected to the first side of the airflow sensor.

5. The aerosol generating device according to claim 2, wherein: The first sealing member has a first through hole and a second through hole. The first through hole is in airflow communication with the first airflow channel, and the second through hole is in airflow communication with the second airflow channel.

6. The aerosol generating device according to claim 5, characterized in that The aerosol generating device further includes a base, wherein a first air inlet and a second air inlet are provided on the base, wherein the first air inlet is in airflow communication with the first through hole, and the second air inlet is in airflow communication with the second through hole.

7. The aerosol generating device according to claim 6, wherein: A charging component is provided on the first circuit board, and the charging component is provided at the second air inlet.

8. The aerosol generating device according to claim 1, wherein An air hole penetrating the first circuit board is provided on a side of the first circuit board away from the air flow sensor, and the air hole is in gas communication with the first side of the air flow sensor.

9. The aerosol generating device according to claim 1, wherein: The aerosol generating device further comprises a second seal disposed on the first circuit board, the second seal being configured to provide a seal between the first side of the airflow sensor and the second side of the airflow sensor.

10. The aerosol generating device according to claim 1, wherein The aerosol generating device further includes a first bracket, the first circuit board is disposed on the first bracket, the first bracket is provided with a third through hole, and the third through hole is in gas communication with the main airway and the second side of the airflow sensor.

11. The aerosol generating device according to claim 10, wherein: The aerosol generating device further includes a battery assembly. The first bracket defines a first accommodating cavity, and the battery assembly is disposed in the first accommodating cavity.

12. The aerosol generating device according to claim 10, wherein: The aerosol generating device further includes a second circuit board, which is arranged perpendicular to the first circuit board and is located on one side of the first bracket.

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