Aerosol-generating device

Abstract

An aerosol-generating device, comprising: a housing (4); an atomization assembly (2), which is connected to the housing (4) and comprises a first atomizer (21) and a second atomizer (22); a power supply (61) for supplying power to the first atomizer (21) and / or the second atomizer (22); an airflow detection assembly (3), which is at least partially arranged in the housing (4) and comprises a first airflow detector (31) in electrical connection with the first atomizer (21) and a second airflow detector (32) in electrical connection with the second atomizer (22); and a change-over switch (1), which is configured to be movable between a first position and a second position relative to the housing (4). The change-over switch (1) is configured so that, when at the first position, the change-over switch (1) connects an airflow path between the first airflow detector (31) and the first atomizer (21), and the first airflow detector (31) can thus control the power supply (61) to supply power to the first atomizer (21) in response to an airflow change; and the change-over switch (1) is configured so that, when at the second position, the change-over switch (1) connects an airflow path between the second airflow detector (32) and the second atomizer (22), and the second airflow detector (32) can thus control the power supply (61) to supply power to the second atomizer (22) in response to an airflow change.

Description

Aerosol generating device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application entitled “Aerosol Generating Device” filed with the China Patent Office on November 15, 2023, with application number 202311532330.0, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The embodiments of the present application relate to the field of aerosol generation technology, and in particular to an aerosol generating device. Background Art

[0004] An aerosol-generating device is a device that atomizes a liquid preparation to form an aerosol. However, in some exemplary prior art, the aerosol-generating device comprises multiple atomizers for storing the liquid preparation, a control switch, and an identification circuit. The identification circuit is used to identify the atomizers to distinguish between them, and the control switch is used to control a power supply to provide power to the identified atomizer, causing the atomizer to atomize the liquid preparation to produce an aerosol. However, the circuit structure of such an aerosol-generating device with multiple atomizers is complex and prone to errors.

[0005] Application Contents

[0006] The embodiment of the present application provides an aerosol generating device with a simple circuit structure.

[0007] The present invention provides an aerosol generating device, comprising:

[0008] case;

[0009] an atomization assembly connected to the housing and comprising a first atomizer and a second atomizer;

[0010] a power supply, configured to provide power to the first atomizer and / or the second atomizer;

[0011] an airflow detection assembly, at least partially disposed in the housing, comprising a first airflow detector electrically connected to the first atomizer and a second airflow detector electrically connected to the second atomizer;

[0012] The switching switch is configured to be movable between at least a first position and a second position relative to the housing, the switching switch being configured to, when in the first position, conduct the airflow path between the first airflow detector and the first nebulizer, so that the first airflow detector can respond to changes in the airflow to control the power supply to provide power to the first nebulizer; and the switching switch being configured to, when in the second position, conduct the airflow path between the second airflow detector and the second nebulizer, so that the second airflow detector can respond to changes in the airflow to control the power supply to provide power to the second nebulizer.

[0013] In one example, the switch is further configured to block the airflow path between the second airflow detector and the second nebulizer when in the first position; and to block the airflow path between the first airflow detector and the first nebulizer when in the second position.

[0014] In one example, the switch is configured to be movable to a third position relative to the housing, and when in the third position, the airflow path between the first airflow detector and the first nebulizer is open, and the airflow path between the second airflow detector and the second nebulizer is open.

[0015] In one example, the third position is located between the first position and the second position.

[0016] In one example, the switch is disposed between the atomization assembly and the airflow detection assembly.

[0017] In one example, the aerosol generating device further includes a bracket, wherein the bracket is provided with a first air guiding channel and a second air guiding channel;

[0018] The switch is movable relative to the bracket and, when located at the first position, opens the first air guide channel, so that the air flow path between the first atomizer and the first air flow detector is connected;

[0019] When the switch is in the second position, the second air guide channel is opened, so that the air flow path between the second atomizer and the second air flow detector is connected.

[0020] In one example, when the switch is in the first position, the switch blocks the second air guide channel;

[0021] When the switch is located at the second position, the switch blocks the first air guide channel.

[0022] In one example, the switch includes an elastic member, and the elastic member has a sensing channel running through two sides of the elastic member;

[0023] When the switch is in the first position, the sensing channel is connected to the first air guide channel;

[0024] When the switch is located at the second position, the sensing channel is connected to the second air-conducting channel.

[0025] In one example, an annular rib surrounding the end of the sensing channel is formed on the elastic member, and the annular rib elastically abuts against the bracket to ensure airtight connection between the sensing channel and the corresponding air guide channel or airtight isolation between the sensing channel and the corresponding air guide channel.

[0026] In one example, the switch further includes an operating member connected to the elastic member, wherein a portion of the operating member extends outside the housing for providing user operation to drive the elastic member to move between the first position and the second position.

[0027] In one example, the elastic member is provided with a first sensing channel and a second sensing channel;

[0028] When the switch is in the first position, the first sensing channel is connected to the first air guide channel;

[0029] When the switch is located at the second position, the second sensing channel is connected to the second air guide channel.

[0030] In one example, the first sensing channel includes a first groove provided on the first end of the switching switch, a second groove provided on the second end of the switching switch, and a through channel passing through the switching switch and connecting the first groove and the second groove, wherein the first groove and the second groove have the same extension direction.

[0031] In one example, the bracket includes a second support plate and a first support plate, a moving space is formed between the second support plate and the first support plate, and at least a portion of the switch moves between the first position and the second position in the moving space.

[0032] In one example, the housing has a first air passage communicating with the first atomizer and a second air passage communicating with the second atomizer;

[0033] The switching switch is configured to, when located in the first position, open the air intake path between the first air duct and the outside world, while blocking the air intake path between the second air duct and the outside world; and to, when located in the second position, open the air intake path between the second air duct and the outside world, while blocking the air intake path between the first air duct and the outside world.

[0034] In one example, the aerosol generating device further comprises a circuit board, and the first airflow detector and the second airflow detector are held close to each other on the circuit board.

[0035] The aerosol generating device comprises an atomizing assembly having first and second atomizers, and an airflow detection assembly having first and second airflow detectors. The device also includes a movable switch. When the switch is in a first position, the airflow path between the first airflow detector and the first atomizer is open. When the switch is in a second position, the airflow path between the second airflow detector and the second atomizer is open. Thus, the first and second airflow detectors can control a power supply based on airflow changes to provide power to the first and second atomizers, respectively, to generate aerosols. This eliminates the need for complex circuit structures and control programs, and provides high stability and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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.

[0037] FIG1 is a schematic diagram of an aerosol generating device provided in one embodiment of the present application;

[0038] FIG2 is a cross-sectional view of an aerosol generating device provided in one embodiment of the present application;

[0039] FIG3 is another cross-sectional view of the aerosol generating device provided in one embodiment of the present application;

[0040] FIG4 is a schematic diagram of a switch provided in an embodiment of the present application in a third position;

[0041] FIG5 is a schematic diagram of a switch provided in an embodiment of the present application in a first position;

[0042] FIG6 is a schematic diagram of a switch provided in an embodiment of the present application in a second position;

[0043] FIG7 is another cross-sectional view of the aerosol generating device provided in one embodiment of the present application;

[0044] FIG8 is a schematic diagram of an airway with a switch in a third position provided by an embodiment of the present application;

[0045] FIG9 is a schematic diagram of an airway with a switch in a first position provided by an embodiment of the present application;

[0046] FIG10 is a schematic diagram of an airway with the switch in the second position provided by an embodiment of the present application;

[0047] FIG11 is a schematic diagram of a second support plate and a housing provided in one embodiment of the present application;

[0048] FIG12 is a schematic diagram of a switch and a moving space provided in an embodiment of the present application;

[0049] FIG13 is a schematic diagram of a switch assembly according to an embodiment of the present application;

[0050] FIG14 is an exploded schematic diagram of a switch provided in one embodiment of the present application;

[0051] In the figure: 1. Switch; 11. Sensing channel; 111. First groove; 112. Through-channel; 113. Second groove; 12. Elastic member; 121. Annular rib; 13. Operating member; 14. Connecting member; 15. Recess; 16. Protrusion; 17. Gap; 2. Atomizer assembly; 21. First atomizer; 22. Second atomizer; 23. Storage chamber; 24. Atomizer core; 25. Air guide tube; 26. First flexible member; 261. First channel; 3. Airflow detection assembly; 31. First airflow detector; 32. Second airflow detector; 4. Housing; 41. Nozzle; 411. Tubular body; 42. Slide; 43. First airway; 44. Second airway 5. Bracket; 51. First support plate; 511. First air guide channel; 512. Second air guide channel; 52. Second support plate; 521. Third air guide channel; 522. Fourth air guide channel; 523. First boss; 524. Second boss; 525. Third boss; 53. Moving space; 54. First side plate; 55. Second side plate; 56. Extension wall; 57. Sealing member; 58. First air inlet; 59. Second air inlet; 6. Power supply assembly; 61. Power supply; 62. Circuit board. DETAILED DESCRIPTION

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 1-14 , an embodiment of the present application provides an aerosol generating device, including a housing 4 , an atomizing assembly 2 , an airflow detecting assembly 3 , and a power supply assembly 6 .

[0057] At least a portion of the surface layer of the aerosol generating device may be formed by a housing 4, which can be touched and held by a user. The housing 4 may be connected to a mouthpiece 41, or the mouthpiece 41 may be integrally formed with the housing 4. The mouthpiece 41 may be held in the user's mouth, and the user inhales the aerosol generated by the aerosol generating device by sucking on the mouthpiece 41. When the user inhales the mouthpiece 41, the airflow within the aerosol generating device may change, including causing changes in the gas flow rate, gas flow direction, and / or air pressure of the aerosol generating device. Thus, the airflow detection component 3 can detect the airflow changes to determine whether a puffing event has occurred or to count puffing events.

[0058] The atomizer assembly 2 is connected to the housing 4 and includes multiple atomizers, for example, a first atomizer 21 and a second atomizer 22. The multiple atomizers can be independent of each other. The atomizer is a device that can accommodate a liquid preparation, atomize the liquid preparation, and generate an aerosol.

[0059] A storage chamber 23 is formed in the atomizer to store the liquid preparation. The amount of liquid preparation stored in each atomizer may not exceed 10 ml, for example, approximately 2 ml. The liquid preparation may include a liquid containing tobacco substances containing volatile tobacco flavor components, or a liquid containing non-tobacco substances. The liquid preparation may include water, liquid medicine, solvents, ethanol, plant extracts, spices, flavoring agents, or vitamin mixtures. Flavoring agents may include, but are not limited to, betel nut extract, menthol, peppermint, spearmint oil, and various fruity aroma ingredients. Flavoring agents may include ingredients that can provide the user with various aromas or flavors. The vitamin mixture may be, but is not limited to, a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E. Based on the different properties of the liquid preparations, the aerosol generating device can be used in different fields, such as medical treatment and electronic aerosol atomization.

[0060] The term "plurality" refers to two or more. In the embodiment shown in FIG2 , there are two atomizers, but the present invention is not limited thereto. At least two of the multiple atomizers can be used to hold different liquid preparations, including those with different flavors or ingredients or ratios, thereby providing users with different sensory experiences by switching the atomizers. Of course, in one embodiment, all atomizers can hold the same liquid preparation. At least two of the multiple atomizers can operate independently, thereby independently generating aerosol.

[0061] Each nebulizer may also include an atomizer core 24, which is in fluid communication with the storage chamber 23 and is used to atomize the liquid preparation, thereby generating an aerosol. The atomizer core 24 may include a liquid absorbing element and a heating element. The liquid absorbing element may be a porous body or fiber that can absorb the liquid preparation and guide the liquid preparation into the atomization range of the heating element. The heating element is used to atomize at least a portion of the liquid preparation on the liquid absorbing element to form an aerosol. The heating element may be integrated with the liquid absorbing element so that the heating element and the liquid absorbing element form a single unit.

[0062] Each atomizer may further include an air guide tube 25, which provides at least a portion of the air flow channel between the atomizing core 24 and the mouthpiece 4. The aerosol generated by atomization by the atomizing core 24 enters the mouthpiece 4 through the air guide tube 25. The storage chamber 23 may be arranged around the air guide tube 25, or the air guide tube 25 may be arranged on one side of the storage chamber 23.

[0063] In one example, the atomizer may have an atomizing compartment fluidically connected to the storage chamber 23, the atomizing core 24 may be accommodated in the atomizing compartment, the air guide tube 25 may be fluidically connected to the atomizing compartment, the storage chamber 23 and / or the air guide tube 25 may be located between the mouthpiece 4 and the atomizing compartment, for example, the mouthpiece 4 may be located above the storage chamber 23, and the atomizing compartment may be located below the storage chamber 23.

[0064] Alternatively, in another example, referring to FIG. 2 , at least a portion of the atomizer core 24 is disposed in the air guide tube 25 , which is provided with a liquid guide hole. The atomizer core 24 is in fluid communication with the storage chamber 23 through the liquid guide hole. The liquid preparation in the storage chamber 23 can pass through the liquid guide hole to be absorbed by the liquid absorption element and atomized by the heating element, or a portion of the liquid absorption element can pass through the liquid guide hole into the storage chamber 23 to absorb and conduct the liquid preparation.

[0065] Referring to Figure 3 , each atomizer may further include a first flexible member 26 having a first channel 261 . The first flexible member 26 is disposed adjacent to the mouthpiece 4 . The first channel 261 is in fluid communication with the air duct 25 in the atomizer. That is, the first channel 261 provides a channel connecting the air duct 25 and the mouthpiece 4 . The first flexible member 26 may seal the upper end of the corresponding storage cavity 23 or provide a sealed connection between the air duct 25 and the mouthpiece 4 .

[0066] In one embodiment, referring to FIG. 2 , the mouthpiece 4 includes a plurality of tubular bodies 411 , which are connected one-to-one with the air guide tubes 25 of the plurality of atomizers. The end of the tubular body 211 facing away from the air guide tube 25 is an air outlet for allowing smoke to enter the user's oral cavity. Therefore, the mouthpiece 4 includes a plurality of air outlets, which can be arranged in a row.

[0067] Alternatively, in other embodiments, an air outlet is provided on the end of the mouthpiece 4, and the air guide tubes 25 of the multiple atomizers are all connected to the air outlet.

[0068] At least a portion of the airflow detection component 3 is disposed in the housing 4. The airflow detection component 3 includes multiple airflow detectors, for example, a first airflow detector 31 and a second airflow detector 32. The number of airflow detectors is consistent with the number of atomizers, and the multiple airflow detectors are electrically connected to the multiple atomizers in a one-to-one correspondence, that is, the first atomizer 21 is electrically connected to the first airflow detector 31, and the second atomizer 22 is electrically connected to the second airflow detector 32.

[0069] In one example, when the airflow path between an airflow detector and a nebulizer electrically connected thereto is open, the airflow detector controls the power supply assembly 6 to provide power to the nebulizer electrically connected thereto in response to the result of the airflow change detected by it, thereby causing the nebulizer to generate aerosol. Therefore, the airflow detector can constitute a start switch for starting the nebulizer electrically connected thereto to generate aerosol.

[0070] More specifically, referring to FIG. 3 , the power supply assembly 6 includes a power supply 61 and a circuit board 62. The power supply 61 may include any suitable battery. The battery may be a rechargeable battery, or the battery may be a disposable battery. In one embodiment, the battery is a lithium-ion battery. Alternatively, the battery may be a nickel metal hydride battery, a nickel cadmium battery, or a lithium-based battery, such as a lithium cobalt, lithium iron phosphate, lithium titanate, or lithium polymer battery.

[0071] The circuit board 62 has multiple circuits, and the multiple circuits are electrically connected to the power supply 61 to form multiple power supply circuits. Different atomizers can be in different power supply circuits. The multiple power supply circuits can have some lines shared or no lines shared at all.

[0072] In the example shown in Figure 3, the airflow detection assembly 3 is fixed to the circuit board 62, and the first airflow detector 31 and the second airflow detector 32 can be held close to each other on the circuit board 62. In one example, the circuit board 62 is connected to the bracket 5 via the airflow detection assembly 3 and is thus held within the housing 4. There can be no direct contact between the circuit board 62 and the bracket 5. In one example, the circuit board 62 is connected to the bracket 5 and supported by the bracket 5, and the circuit board 62 can also support the airflow detection assembly 3.

[0073] The first airflow detector 31 can be set or connected to the power supply circuit between the first nebulizer 21 and the power supply 61, and the second airflow detector 32 can be set or connected to the power supply circuit between the second nebulizer 22 and the power supply 61. The first airflow detector 31 and the second airflow detector 32 form a switch-like element, so that the first airflow detector 31 can control the corresponding power supply circuit to be electrically conductive based on the airflow change results detected by it, so that the first airflow detector 31 can control the power supply 61 to provide the first nebulizer 21 with electricity for its nebulized liquid preparation, and the second airflow detector 32 can control the corresponding power supply circuit to be electrically conductive based on the airflow change results detected by it, so that the second airflow detector 32 can control the power supply to provide the second nebulizer 22 with electricity for its nebulized liquid preparation.

[0074] Alternatively, when the airflow path between an airflow detector and an atomizer electrically connected thereto is open, the airflow detector may count the operating parameters of the atomizer electrically connected thereto, such as the accumulated number of puffs or the remaining number of puffs, the accumulated operating time and / or the remaining operating time, based on the result of detecting the airflow change, and may control the sensory indicator to send a prompt signal to the user, or control the power supply assembly 6 to stop providing power to the atomizer, when the operating parameter reaches a preset value, such as when the accumulated number of puffs reaches a preset total number of puffs or when the remaining number of puffs is exhausted.

[0075] In one example, a window is provided on the housing 4 corresponding to the storage cavity 23 of the atomizer, and a user can observe the storage amount of the liquid preparation in the storage cavity 23 through the window.

[0076] Referring to Figures 1-10, the aerosol generating device further includes a switch 1. The switch 1 is movable relative to the housing 4 between at least a first position and a second position. When the switch 1 is in the first position, the airflow path between the first airflow detector 31 and the first nebulizer 21 is connected, so that the first airflow detector 31 can control the power supply 61 to supply power to the first nebulizer 21 in response to changes in airflow. When the switch 1 is in the second position, the airflow path between the second airflow detector 32 and the second nebulizer 22 is connected, so that the second airflow detector 32 can control the power supply 61 to supply power to the second nebulizer 22 in response to changes in airflow. Thus, by moving the switch 1, the nebulizer in fluid communication with the airflow detector in the airflow detection assembly 3 can be selected. When a user draws on the mouthpiece 41, the selected nebulizer can generate aerosol, or its operating parameters can be counted. The nebulizer operating parameters include the accumulated number of puffs or the number of puffs remaining, the accumulated operating time, and / or the remaining operating time.

[0077] In one embodiment, the switch 1 is further configured to block the airflow path between the second airflow detector 32 and the second nebulizer 22 when in the first position, and to block the airflow path between the first airflow detector 31 and the first nebulizer 21 when in the second position. Thus, when the switch 1 is in both the first and second positions, only one of the airflow path between the second airflow detector 32 and the second nebulizer 22 and the airflow path between the first airflow detector 31 and the first nebulizer 21 is connected; the other is disconnected.

[0078] In one embodiment, referring to FIG. 3 , the switch 1 is disposed between the atomizer assembly 2 and the airflow detection assembly 3. Thus, the switch 1 moves between the atomizer assembly 2 and the airflow detection assembly 3 and, through this movement, connects the airflow path between at least one atomizer and an airflow detector electrically connected thereto, for example, connecting the airflow path between the first atomizer 21 and the first airflow detector 31, or connecting the airflow path between the second atomizer 22 and the second airflow detector 32.

[0079] In one embodiment, referring to Figures 3 to 6, the aerosol generating device further comprises a bracket 5, the switching switch 1 can be moved relative to the bracket 5 between at least a first position and a second position, and a plurality of connecting channels are provided on the bracket 5, and the plurality of connecting channels are located between the atomizing assembly 2 and the airflow detection assembly 3, so that the atomizer in the atomizing assembly 2 and the corresponding airflow detector in the airflow detection assembly 3 can only realize the airflow path conduction between the atomizer and the airflow detector when one or more of the connecting channels are in an open state.

[0080] More specifically, referring to Figures 4 to 6, the bracket 5 is provided with a first air guide channel 511 and a second air guide channel 512. Moving the position of the switching switch 1 can change the positional relationship between the switching switch 1 and the first air guide channel 511 and the second air guide channel 512.

[0081] 5 , when the switch 1 is in the first position, the first air guide channel 511 is opened, thereby connecting the airflow path between the first atomizer 21 and the first airflow detector 31. Referring to FIG6 , when the switch 1 is in the second position, the second air guide channel 512 is opened, thereby connecting the airflow path between the second atomizer 22 and the second airflow detector 32.

[0082] As an example, referring to FIG. 5 , when the switch 1 is in the first position, the switch 1 blocks the second air guide channel 512 ; referring to FIG. 6 , when the switch 1 is in the second position, the switch 1 blocks the first air guide channel 511 .

[0083] More specifically, please refer to Figure 5. When the switching switch 1 is in the first position, the switching switch 1 blocks the second air guiding channel 512, so that only the first air guiding channel 511 is open among the first air guiding channel 511 and the second air guiding channel 512, thereby making the airflow path between the first nebulizer 21 and the second nebulizer 31 only between the first nebulizer 21 and the corresponding airflow detector connected, and the airflow path between the second nebulizer 22 and the corresponding airflow detector is disconnected.

[0084] Referring to FIG6 , when the switch 1 is in the second position, the switch 1 blocks the first channel 511, so that only the second air-guiding channel 512 of the first air-guiding channel 511 and the second air-guiding channel 512 is open, thereby connecting the airflow path between the first atomizer 21 and the second atomizer 22 and the corresponding airflow detector, while the airflow path between the first atomizer 21 and the corresponding airflow detector is disconnected.

[0085] As an example, the airflow path between the atomizer assembly and the airflow detection assembly is located outside the switch. The switch can block the airflow path instead of providing an airflow path. As a result, the airflow between the atomizer and the airflow detector electrically connected thereto cannot pass through the switch. The switch does not have an airflow path inside that can connect the atomizer and the airflow detector electrically connected thereto. Based on this, the switch can be a solid structure.

[0086] Alternatively, in one example, referring to Figures 4-6, a sensing channel 11 is formed in the switching switch 1, and the airflow path between the nebulizer and the airflow detector electrically connected thereto includes the sensing channel 11, so that the airflow between the nebulizer and the airflow detector electrically connected thereto needs to flow through the sensing channel 11.

[0087] More specifically, referring to Figure 5, when the switch 1 is in the first position, the sensing channel 11 on the switch 1 is in communication with the first air channel 511, thereby opening the first air channel 511 and allowing the airflow between the first atomizer 21 and the first airflow detector 31 to flow along the first air channel 511 and the sensing channel 11, thereby ensuring that the airflow path between the first atomizer 21 and the first airflow detector 31 is connected. At this time, the second air channel 512 may be blocked by other parts of the switch 1 because there is no sensing channel 11 connecting it, thus being in a closed state, thereby disconnecting the airflow path between the second atomizer 22 and the corresponding airflow detector.

[0088] Referring to Figure 6 , when the switch 1 is in the second position, the sensing channel 11 on the switch 1 communicates with the second air-guiding channel 512, thereby opening the second air-guiding channel 512. Air between the second atomizer and the second airflow detector can flow along the second air-guiding channel 512 and the sensing channel 11, thereby connecting the airflow path between the second atomizer 22 and the second airflow detector 32. At this point, the first air-guiding channel 512 may be blocked by other parts of the switch 1 because there is no sensing channel 11 communicating with it, thus being in a closed state. This disconnects the airflow path between the first atomizer 21 and the corresponding airflow detector.

[0089] In one embodiment, referring to Figures 4-6, the bracket 5 includes a first support plate 51, and the switch 1 and the airflow detection assembly 3 are disposed on opposite sides of the first support plate 51. The switch 1 and the airflow detection assembly 3 can be separated by the first support plate 51. The first support plate 51 can support the switch 1, and the switch 1 can be slidably connected to the first support plate 1. The first air guide channel 511 is located between the first airflow detector 31 and the switch 1, and the second air guide channel 512 is located between the second airflow detector 32 and the switch 1. More specifically, at least a portion of the first air guide channel 511 and at least a portion of the second air guide channel 512 can be formed on the first support plate 51.

[0090] Thus, referring to Figure 5 , when the switch 1 is in the first position, the first air-guiding channel 511 is open, connecting to the sensing channel 11, thereby ensuring an airflow path between the first airflow detector 31 and the switch 1. Referring to Figure 6 , when the switch 1 is in the second position, the second air-guiding channel 512 is open, connecting to the sensing channel 11, thereby ensuring an airflow path between the second airflow detector 32 and the switch 1.

[0091] In one embodiment, referring to Figures 4 to 6, the bracket 5 includes a second support plate 52, the switching switch 1 and the atomization assembly 2 are arranged on opposite sides of the second support plate 52, the atomizer in the atomization assembly 2 can be separated from the switching switch 1 by the second support plate 52, the second support plate 52 can support the atomization assembly 2, and the switching switch 1 can be slidably connected to the second support plate 52.

[0092] A third air-guiding channel 521 may be provided between the first atomizer 21 and the switch 1, and a fourth air-guiding channel 522 may be provided between the second atomizer 22 and the switch 1. At least a portion of the third air-guiding channel 521 and at least a portion of the fourth air-guiding channel 522 may be formed on the second support plate 52. Moving the switch 1 can change the positional relationship between the switch 1 and the third air-guiding channel 521 and the fourth air-guiding channel 522.

[0093] Referring to Figure 5 , when the switch 1 is in the first position, the third air-guiding channel 521 is open and connected to the sensing channel 11, thereby ensuring an airflow path between the first atomizer 21 and the switch 1. Referring to Figure 6 , when the switch 1 is in the second position, the fourth air-guiding channel 522 is open and connected to the sensing channel 11, thereby ensuring an airflow path between the second atomizer 22 and the switch 1.

[0094] In order to prevent liquid leaking from the atomizer assembly 1 from entering the sensing channel 11 in the switch 1, thereby blocking the sensing channel 11 or flowing through the sensing channel 11 to the airflow detector, the bracket 5 has a plurality of first protrusions 523 protruding from the second support plate 52 toward the atomizer assembly. The third air guide channel 521 and the fourth air guide channel 522 are respectively formed in different first protrusions 523. The first protrusions 523 can prevent liquid leaking onto the second support plate 52 from entering the third air guide channel 521 and the fourth air guide channel 522, thereby preventing the liquid from entering the sensing channel 11. The second support plate 52 and the first protrusions 523 can be integrally formed.

[0095] In one embodiment, referring to Figures 4 to 6 and 12, the bracket 5 includes a first support plate 51 and a second support plate 52, a moving space 53 is formed between the first support plate 51 and the second support plate 52, at least a portion of the switching switch 1 is accommodated in the moving space 53, and at least a portion of the switching switch 1 can move between the first position and the second position in the moving space.

[0096] More specifically, referring to Figures 4 to 6 and 12, the travel trajectory of the switching switch 1 between the first position and the second position can be a straight line, and the bracket 5 can also include a first side plate 54 and a second side plate 55 arranged opposite to each other, and the moving space 53 is located between the first side plate 54 and the second side plate 55. The first side plate 54 and the second side plate 55 are used to limit the travel of the switching switch 1 to prevent the switching switch 1 from moving beyond the limited position.

[0097] The switching switch 1 is arranged between the first support plate 51 and the second support plate 52, the atomizer assembly 2 is arranged above the second support plate 52, and the airflow detection assembly 3 is arranged below the first support plate 51, so that when the switching switch 1 moves in the moving space 53, the atomizer assembly 2 and the airflow detection assembly 3 can remain relatively stationary, and the switching switch 1 can move relative to the atomizer assembly 2 and the airflow detection assembly 3 at the same time, and move relative to the first support plate 51 and the second support plate 52 at the same time, so that the first air guide channel 511 and the third air guide channel 521 can be connected to the same sensing channel 11 at the same time, and thus open at the same time, and the second air guide channel 512 and the fourth air guide channel 522 can be connected to the same sensing channel 11 at the same time, and thus open at the same time.

[0098] As an example, referring to Figures 4 to 6, the bracket 5 also includes a plurality of extension walls 56, which extend from the first support plate 51 in the direction of the airflow detection assembly 3. The plurality of extension walls 56 are connected to form a plurality of sensing cavities spaced apart from each other, and different airflow detectors define partial boundaries of different sensing cavities. The aerosol generating device also includes a seal 57, which is arranged around the airflow detector and provides a sealed connection between the airflow detector and the extension wall 56, thereby sealing the sensing cavity so that the airflow in the sensing cavity flows mainly through the air guide channel opened on the first support plate 51. The first support plate 51 and the extension wall 56 can be integrally formed.

[0099] In one embodiment, referring to Figures 5, 6, 13 and 14, the switching switch 1 has multiple sensing channels 11, for example, a first sensing channel and a second sensing channel. The number of sensing channels 11 is consistent with the number of atomizers. The multiple sensing channels can correspond one-to-one to multiple atomizers and airflow detectors electrically connected to the atomizers, and are part of the airflow path between the corresponding atomizers and the airflow detectors.

[0100] More specifically, referring to Figure 5, when the switching switch 1 is in the first position, the first sensing channel is connected to the first air guide channel 511, and / or the first sensing channel is connected to the third air guide channel 521, so that the airflow path between the first atomizer 21 and the first airflow detector 31 is connected.

[0101] 5 , when the switch 1 is in the second position, the second sensing channel is connected to the second air guide channel 512 , and / or the second sensing channel is connected to the fourth air guide channel 522 , so that the airflow path between the second atomizer 22 and the second airflow detector 32 is connected.

[0102] In one embodiment, referring to FIG. 4 , the switch 1 is configured to be movable relative to the housing 4 to a third position. When in the third position, the airflow path between the first airflow detector 31 and the first nebulizer 21 is open, and the airflow path between the second airflow detector 32 and the second nebulizer 22 is open. In this case, the first nebulizer 21 and the second nebulizer 22 can simultaneously generate aerosols, or the operating parameters of the first nebulizer 21 and the second nebulizer 22 can be simultaneously counted.

[0103] As an example, the third position is located between the first position and the second position.

[0104] As an example, referring to Figures 4-6 , the first sensing channel includes a first groove 111 provided on the first end of the switch, a second groove 113 provided on the second end of the switch 1, and a through channel 112 that extends through the switch 1 and connects the first groove 111 and the second groove 113. The first groove 111 and the second groove 113 extend in the same direction. The first sensing channel and the second sensing channel can have the same structure and can be arranged axially symmetrically with each other, but this is not limited to the above.

[0105] Referring to Figure 4, when the switching switch 1 is in the third position, the first groove 111 of the first sensing channel extends to communicate with the first air guiding channel 511, the first groove 111 of the second sensing channel extends to communicate with the second air guiding channel 512, the second groove 113 of the first sensing channel extends to communicate with the third air guiding channel 521, and the second groove 113 of the second sensing channel extends to communicate with the fourth air guiding channel 522, so that the airflow path between the first airflow detector 31 and the first nebulizer 21 is connected, and the airflow path between the second airflow detector 32 and the second nebulizer 22 is connected.

[0106] Referring to Figure 5, when the switching switch 1 is in the first position, the first groove 111 of the first sensing channel extends to communicate with the first air guiding channel 511, the first groove 111 of the second sensing channel is staggered with the second air guiding channel 512, the second groove 113 of the first sensing channel extends to communicate with the third air guiding channel 521, and the second groove 113 of the second sensing channel is staggered with the fourth air guiding channel 522, so that the airflow path between the first airflow detector 31 and the first nebulizer 21 is connected, while the airflow path between the second airflow detector 32 and the second nebulizer 22 is disconnected.

[0107] Referring to Figure 6, when the switching switch 1 is in the second position, the first groove 111 of the first sensing channel and the first air guiding channel 511 are staggered with each other, the first groove 111 of the second sensing channel and the second air guiding channel 512 are interconnected, the second groove 113 of the first sensing channel and the third air guiding channel 521 are staggered with each other, and the second groove 113 of the second sensing channel and the fourth air guiding channel 522 are interconnected, so that the airflow path between the first airflow detector 31 and the first nebulizer 21 is disconnected, and the airflow path between the second airflow detector 32 and the second nebulizer 22 is connected.

[0108] In one embodiment, referring to Figures 13 and 14 , the switch 1 includes an elastic member 12 , in which the sensing channel 11 is formed. The elastic member 12 can be made of a flexible material such as silicone or rubber, and has elasticity. An annular rib 121 is formed on the elastic member 12 , surrounding the end of the sensing channel 11 . The annular rib 121 elastically abuts against the bracket 5 , thereby ensuring airtight communication or airtight isolation between the sensing channel 11 and the corresponding air guide channel. At least a portion of the elastic member 12 can be accommodated in the movable space 53 .

[0109] As an example, referring to Figure 12, an annular rib 121 is formed at the first end of the elastic member 12, surrounding the first groove 111, and elastically abutting the first support plate 51, so that the first groove 111 is airtightly connected when connected to the first air guide channel 511 or the second air guide channel 512, and at the same time, the first groove 111 is airtightly isolated when it is offset from the first air guide channel 511 or the second air guide channel 512, so as to block the air path between the first air guide channel 511 and the second air guide channel 512, and prevent air exchange between the two.

[0110] This can prevent other nebulizers from being mistakenly started to atomize liquid preparations to generate aerosol or to count the working parameters of other nebulizers when one nebulizer is intended to be started to atomize liquid preparations to generate aerosol or to count the working parameters of one nebulizer.

[0111] 12 to 14 , the annular rib 121 on the first end has a plurality of first grooves 111 surrounding different sensing channels 11 .

[0112] As an example, referring to Figures 13 and 14, an annular rib 121 is formed at the second end of the elastic member 12, surrounding the second groove 113, and elastically abutting the second support plate 52, so that the second groove 113 is airtightly connected when connected to the third air guide channel 521 or the fourth air guide channel 522, and at the same time, the second groove 113 is airtightly isolated when it is staggered with the third air guide channel 521 or the fourth air guide channel 522, so as to block the air path between the third air guide channel 521 and the fourth air guide channel 522, and prevent air exchange between the two.

[0113] 13 and 14 , the annular rib 121 on the second end has a plurality of second grooves 113 surrounding different sensing channels 11 .

[0114] In one embodiment, referring to FIG. 12 , a slide groove 42 is formed on the housing 4. The switch 1 further includes an operating member 13, with a portion of the operating member 13 positioned within the slide groove 42. The switch 1 is configured to move between a first position and a second position by the operating member 13 moving along the slide groove 42. When the operating member 13 slides along the slide groove 42, at least a portion of the elastic member 12 moves within the movement space 53.

[0115] The chute 42 may be a hole extending through the surface of the housing 4. A portion of the operating member 13 extends outside the housing 4 and is exposed through the chute 42, allowing a user to manually operate the operating member 13 to move along the chute 42, thereby driving the elastic member 12 to move between the first position and the second position. In other examples, the operating member 13 may be electrically driven, with an electric motor, a motor, or other component in the aerosol generating device driving the operating member 13 to move along the chute 42.

[0116] 13 and 14 , the switch 1 may further include a connector 14. The connector 14 has a greater hardness than the elastic member 12. The elastic member 12 and the connector 14 are integrally joined. The connector 14 supports the elastic member 12, and at least a portion of the connector 14 may be located within the movement space 53. The operating member 13 partially extends to connect with the connector 14. The operating member 13 is connected to the elastic member 12 via the connector 14, so that movement of the operating member 13 drives movement of the elastic member 12.

[0117] It should be noted that the sensing channel 11 on the elastic member 12 is optional and not mandatory. In other embodiments, the sensing channel 11 may not be provided on the elastic member 12. The elastic member 12 can be moved to block the first air guide channel 511 and / or the third air guide channel 521 to disconnect the air flow path between the first nebulizer 21 and the first air flow detector 31, or the second air guide channel 512 and / or the fourth air guide channel 522 can be blocked to disconnect the air flow path between the second nebulizer 22 and the second air flow detector 32.

[0118] It should be noted that the second support plate 52 is optional but not mandatory, and part of the boundary of the moving space 53 may not be defined by the second support plate 52 .

[0119] In one embodiment, referring to Figures 7 to 10, the housing 4 has a first air duct 43 connected to the first atomizer 21 and a second air duct 44 connected to the second atomizer 22; the switching switch 1 is configured so that when it is in the first position, the air intake path between the first air duct 43 and the outside is connected, and when it is in the second position, the air intake path between the second air duct 44 and the outside is connected.

[0120] As an example, referring to FIG9 , when the switch 1 is in the first position, the air intake path between the second air passage 44 and the outside world is blocked, preventing outside air from entering the second atomizer 22 through the second air passage 44. Referring to FIG10 , when the switch 1 is in the second position, the air intake path between the first air passage 43 and the outside world is blocked, preventing outside air from entering the first atomizer 21 through the first air passage 43. Thus, when the switch 1 is in either the first or second position, the first and second air passages 43 and 44 cannot be simultaneously connected to the outside world, ensuring that the smoke inhaled into the user's mouth has a high concentration, preventing outside air from being directly drawn into the user's mouth through other, unselected atomizers, thereby reducing the concentration of smoke produced by the selected atomizer.

[0121] As an example, referring to Figure 8, the switch 1 can be moved to the third position. When the switch 1 is in the third position, the first air duct 43 and the second air duct 44 are connected to the outside world at the same time, and the outside air can enter the first atomizer 21 and the second atomizer 22 respectively through the first air duct 43 and the second air duct 44 at the same time.

[0122] As an example, the second support plate 52 is provided with a first air inlet 58 communicating with the first air passage 43, and a second air inlet 59 communicating with the second air passage 44. The second end of the switch 1 is partially recessed 15 and partially convex 16. A gap 17 is defined between the recessed 15 and the second support plate 52, and at least a portion of the convex 16 can abut the second support plate 52 in an airtight manner.

[0123] Referring to Figure 9 , when the switch 1 is in the first position, the gap 17 communicates with the first air inlet 58, allowing outside air to enter the first air passage 43 sequentially through the gap 17 in the movable space 53 and the first air inlet 58 on the second support plate 52. At this point, a protrusion 16 of the switch 1 is positioned corresponding to the second air inlet 59, and the protrusion 16 forms an annular, airtight abutment with the second support plate 52 around the periphery of the second air inlet 59, thereby blocking the air path between the gap 17 and the second air inlet 59 and preventing outside air from entering the second air passage 44.

[0124] Referring to Figure 10 , when the switch 1 is in the second position, the gap 17 communicates with the second air inlet 59, allowing outside air to sequentially enter the second air passage 44 through the gap 17 in the movable space 53 and the second air inlet 59 on the second support plate 52. At this point, a protrusion 16 of the switch 1 is positioned corresponding to the first air inlet 58, and the protrusion 16 forms an annular, airtight abutment with the second support plate 52 around the periphery of the first air inlet 58, thereby blocking the air path between the gap 17 and the first air inlet 58 and preventing outside air from entering the first air passage 43.

[0125] Referring to Figure 8, when the switching switch 1 is in the third position, the gap 17 is connected to the first air inlet hole 58 and the second air inlet hole 59 at the same time, and the outside air can enter the first air duct 43 through the gap 17 in the moving space 53 and the first air inlet hole 58 on the second support plate 52 in sequence, and enter the second air duct 44 through the gap 17 in the moving space 53 and the second air inlet hole 59 on the second support plate 52 in sequence.

[0126] As an example, the first air duct 43 and the second air duct 44 are independent and isolated from each other. An air inlet passage connected to the outside is also formed in the housing 4. The first air duct 43 and the second air duct 44 can share the air inlet passage, and the gap 17 in the moving space 53 can be a component of the air inlet passage.

[0127] In the embodiments shown in Figures 8-10 and Figures 13 and 14, the second end of the elastic member 12 has two annular ribs 121 that are not arranged corresponding to the sensing channel 11. The two annular ribs 121 are arranged corresponding to the first air inlet hole 58 and the second air inlet hole 59, respectively. For convenience, they are respectively referred to as the first annular rib 1211 and the second annular rib 1212.

[0128] Referring to Figure 9, when the switching switch 1 is in the first position, the first air inlet hole 58 is located outside the first annular rib 1211 and is connected to the gap 17 in the moving space 53. The port of the second air inlet hole 59 is located inside the second annular rib 1212 and is surrounded by the second annular rib 1212, thereby being airtightly isolated from the gap 17 in the moving space 53.

[0129] Referring to Figure 10, when the switching switch 1 is in the second position, the second air inlet hole 59 is located outside the second annular rib 1212 and is connected to the gap 17 in the moving space 53. The port of the first air inlet hole 58 is located inside the first annular rib 1211 and is surrounded by the first annular rib 1211, thereby being airtightly isolated from the gap 17 in the moving space 53.

[0130] Referring to Figure 8, when the switching switch 1 is in the third position, the first air inlet 58 is located outside the first annular rib 1211 and is connected to the gap 17 in the moving space 53, and the second air inlet 59 is located outside the second annular rib 1212 and is connected to the gap 17 in the moving space 53.

[0131] In the embodiments shown in Figures 4 and 11, in order to prevent liquid leaking from the atomizer assembly 2 from entering the mobile space 53 and then leaking out of the housing 4, the bracket 5 has a plurality of second protrusions 524 protruding from the second support plate 52 toward the atomizer assembly 2. Parts of the first air inlet 58 and parts of the second air inlet 59 are respectively formed in different second protrusions 524. The second protrusions 524 can prevent liquid leaking onto the second support plate 52 from entering the mobile space 53. The second support plate 52 and the second protrusions 524 can be integrally formed.

[0132] In the embodiment shown in Figures 3 and 4, the circuit board 62 and the atomizer assembly 2 are arranged on opposite sides of the second support plate 52. The second support plate 52 has a plurality of third bosses 525, each of which has a wire hole formed therein. The atomizer leads pass through the wire holes in the third bosses 525 and are electrically connected to the circuit board 62. The third bosses 525 extend from the second support plate 52 toward the atomizer assembly 2 so that their upper ends are higher than the second support plate 52. This prevents liquid on the second support plate 52 from entering the wire holes, thereby helping to protect the circuit board 63. The second support plate 52 and the third bosses 525 can be integrally formed.

[0133] 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: case; An atomization assembly, connected to the housing, and comprising a first atomizer and a second atomizer; A power source, used to provide power to the first atomizer and / or the second atomizer; an airflow detection assembly, at least partially disposed in the housing, comprising a first airflow detector electrically connected to the first atomizer and a second airflow detector electrically connected to the second atomizer; A switching switch is configured to be movable between at least a first position and a second position relative to the shell, and the switching switch is used to conduct the airflow path between the first airflow detector and the first atomizer when in the first position, so that the first airflow detector can respond to airflow changes to control the power supply to provide power to the first atomizer; and the switching switch is used to conduct the airflow path between the second airflow detector and the second atomizer when in the second position, so that the second airflow detector can respond to airflow changes to control the power supply to provide power to the second atomizer.

2. The aerosol generating device according to claim 1, characterized in that The switch is further configured to block the airflow path between the second airflow detector and the second nebulizer when in the first position; and to block the airflow path between the first airflow detector and the first nebulizer when in the second position.

3. The aerosol generating device according to claim 1, characterized in that The switch is configured to be movable to a third position relative to the housing, and when located at the third position, the airflow path between the first airflow detector and the first atomizer is open, and the airflow path between the second airflow detector and the second atomizer is open.

4. The aerosol generating device according to claim 3, characterized in that The third position is located between the first position and the second position.

5. The aerosol generating device according to claim 1, characterized in that The switching switch is arranged between the atomization component and the airflow detection component.

6. The aerosol generating device according to claim 1, wherein: The aerosol generating device further comprises a bracket, on which a first air guiding channel and a second air guiding channel are provided; The switch can move relative to the bracket and, when located at the first position, opens the first air guide channel so that the air flow path between the first atomizer and the first air flow detector is connected; And when the switching switch is located at the second position, the second air guide channel is opened, so that the air flow path between the second atomizer and the second air flow detector is connected.

7. The aerosol generating device according to claim 6, characterized in that When the switch is located at the first position, the switch blocks the second air guide channel; When the switch is located at the second position, the switch blocks the first air guide channel.

8. The aerosol generating device according to claim 6, characterized in that The switch comprises an elastic member, and the elastic member has a sensing channel running through two sides of the elastic member; When the switch is located at the first position, the sensing channel is connected to the first air-conducting channel; When the switch is located at the second position, the sensing channel is connected to the second air guide channel.

9. The aerosol generating device according to claim 8, characterized in that The elastic member is formed with an annular convex rib surrounding the end of the sensing channel, and the annular convex rib elastically abuts against the bracket to make the sensing channel airtightly connected with the corresponding air guide channel or airtightly isolated from the corresponding air guide channel.

10. The aerosol generating device according to claim 8, wherein: The switch further includes an operating member connected to the elastic member, wherein a portion of the operating member extends outside the housing and is used to provide a user with an operation to drive the elastic member to move between the first position and the second position.

11. The aerosol generating device according to claim 8, wherein: The elastic member is provided with a first sensing channel and a second sensing channel; When the switch is located at the first position, the first sensing channel is connected to the first air guide channel; When the switch is located at the second position, the second sensing channel is connected to the second air guiding channel.

12. The aerosol generating device according to claim 11, characterized in that The first sensing channel includes a first groove arranged on the first end of the switching switch, a second groove arranged on the second end of the switching switch, and a through channel that passes through the switching switch and connects the first groove and the second groove, and the first groove and the second groove have the same extension direction.

13. The aerosol generating device according to claim 6, wherein: The bracket includes a second support plate and a first support plate, a moving space is formed between the second support plate and the first support plate, and at least a part of the switch moves between the first position and the second position in the moving space.

14. The aerosol generating device according to claim 1, wherein: The housing has a first air passage connected to the first atomizer and a second air passage connected to the second atomizer; The switching switch is configured to, when located in the first position, open the air intake path between the first air duct and the outside world, while blocking the air intake path between the second air duct and the outside world; and to, when located in the second position, open the air intake path between the second air duct and the outside world, while blocking the air intake path between the first air duct and the outside world.

15. The aerosol generating device according to claim 1, wherein: The aerosol generating device further comprises a circuit board on which the first airflow detector and the second airflow detector are held in close proximity to each other.

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