Aerosol-generating device

Abstract

The utility model relates to an aerosol generating device, comprising: a first module comprising a tube assembly having an accommodating cavity, the proximal end of the tube assembly having an opening for at least partial insertion of an aerosol generating product into the accommodating cavity; a photoelectric detection assembly is arranged in the second module, at least part of the first module is contained in the second module, the photoelectric detection assembly is arranged on the outer side of the pipe assembly, and a light path is arranged between the photoelectric detection assembly and the containing cavity; at least part of light emitted by the photoelectric detection assembly and / or at least part of light reflected by the aerosol generating product are / is propagated along the light path; at least part of the airflow channel is arranged in the pipe assembly, and the airflow channel is used for draining outside air to the far end of the containing cavity; the pipe assembly comprises a first light-transmitting part arranged on the light path, and the airflow channel bypasses the light path in the first light-transmitting part.

Description

Technical Field

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

[0002] An aerosol generating device is a device that enables a tobacco product to generate smoke without burning. In some exemplary prior arts, the aerosol generating device includes a photoelectric sensor that can emit light or receive light, so as to identify whether the tobacco product is inserted in place or obtain the property information of the tobacco product. However, the smoke generated by the tobacco product will flow back along the air inlet channel and adhere to the photoelectric sensor, and form oil stains on the photoelectric sensor to block the light, causing the photoelectric sensor to be insensitive or have a large detection error, and even causing the photoelectric sensor to lose its detection function. Utility Model Content

[0003] One of the purposes of the present application is to provide an aerosol generating device that can ensure a smooth light path.

[0004] An aerosol generating device provided in an embodiment of the present application includes:

[0005] A first module, comprising a tube assembly having a receiving cavity, wherein a proximal end of the tube assembly has an open opening for inserting at least a portion of the aerosol generating article into the receiving cavity;

[0006] a second module having a photoelectric detection assembly disposed therein, wherein the first module is at least partially contained in the second module, and the photoelectric detection assembly is disposed outside the tube assembly, an optical path is defined between the photoelectric detection assembly and the containing cavity, and at least part of the light emitted by the photoelectric detection assembly and / or at least part of the light reflected by the aerosol generating article propagates along the optical path; and

[0007] an air flow channel, which is at least partially disposed in the tube assembly, and is used to guide external air to the distal end of the accommodating cavity;

[0008] Wherein, the tube assembly includes a first light-transmitting portion arranged on the light path, and the airflow channel is arranged to bypass the light path in the first light-transmitting portion.

[0009] As an example, the tube assembly includes a first tubular body and a second tubular body outer-circuited by the first tubular body, and the airflow channel includes a first airflow channel, and the first airflow channel is arranged between the first tubular body and the second tubular body;

[0010] The first light-transmitting portion includes a first through hole penetrating the first tubular body and the second tubular body, and the first airflow channel is arranged to bypass the first through hole.

[0011] As an example, the first light-transmitting portion includes a first lens that allows light to pass through, and the first lens is disposed in the first through hole.

[0012] As an example, the second module includes a bracket having a receiving cavity, the tube assembly is at least partially received in the receiving cavity, and the first lens includes a first surface facing the receiving cavity and a second surface facing the bracket, and the light path passes through the first surface and the second surface;

[0013] The first light-transmitting portion is disposed between the proximal end and the distal end of the second tubular body;

[0014] The distal end of the first module is sealed to prevent the backflow of air from leaking from the distal end of the second tubular body and contaminating the second surface.

[0015] As an example, the bracket includes a second through hole and a second lens disposed in the second through hole and allowing light to pass through, and the second lens is disposed on the optical path and located between the photoelectric detection component and the first lens.

[0016] As an example, the first tubular body and the second tubular body are integrally formed.

[0017] As an example, the tube assembly further includes a third tubular body, and the accommodating cavity includes a first accommodating cavity provided in the first tubular body and a second accommodating cavity provided in the third tubular body;

[0018] The airflow channel comprises a second airflow channel, and the second airflow channel is arranged between the third tubular body and the second tubular body;

[0019] Along the direction of air flow, the first air flow channel is located upstream of the second air flow channel.

[0020] As an example, the first module further includes a sealing member, which is disposed between the first tubular body and the second tubular body and seals the first tubular body and the second tubular body;

[0021] A gap connecting the first air flow channel and the second air flow channel is provided between the sealing member and the second tubular body; or

[0022] The sealing member is provided with a hole or a notch connecting the first air flow channel and the second air flow channel.

[0023] As an example, the first module further comprises a heating component for directly heating or indirectly heating the aerosol generating product, and at least a part of the heating component is disposed inside the third tubular body or arranged on the third tubular body.

[0024] As an example, the heating assembly includes an air heater at least partially disposed in the third tubular body, and the air heater is located upstream of the second accommodating cavity along the direction of air flow.

[0025] As an example, the first module also includes a heating component and a lower end cap that supports the heating component so that the heating component is at least partially maintained inside the second tubular body, the heating component is used to directly heat or indirectly heat the aerosol generating product, and the lower end cap is sealingly connected to the distal end of the second tubular body to prevent backflow airflow from leaking from the distal end of the second tubular body into the second module.

[0026] As an example, the second module includes a power supply component; wherein

[0027] The heating component includes an electromagnetic heating element capable of generating heat in a changing magnetic field, and the first module or the second module includes a magnetic field generator, and the magnetic field generator is electrically connected to the power supply component to generate a changing magnetic field that causes the electromagnetic heating element to generate heat; or

[0028] The heating component includes a resistive heating element, and the first module also includes an electrode fixed on the lower end cover, one end of the electrode is electrically connected to the resistive heating element, and the other end of the electrode is electrically connected to the power supply component.

[0029] An aerosol generating device provided in an embodiment of the present application includes:

[0030] A first module having a receiving cavity therein, wherein a proximal end of the first module is provided with an insertion port for inserting at least a portion of the aerosol generating article into the receiving cavity, and the first module comprises a heating component, wherein the heating component is used to directly or indirectly heat the aerosol generating article to generate an aerosol;

[0031] A second module includes a power supply component, wherein the power supply component is used to provide power for the heating component to generate heat; and

[0032] An air flow channel is defined in the first module, and is used to guide external air to the far end of the accommodating cavity;

[0033] Wherein, at least a part of the first module is removably arranged in the second module.

[0034] As an example, the first module includes a first tubular body, a second tubular body and a third tubular body, and the airflow channel includes a first airflow channel arranged between the first tubular body and the second tubular body, and a second airflow channel arranged between the second tubular body and the third tubular body;

[0035] Along the direction of air flow, the first air flow channel is located upstream of the second air flow channel;

[0036] Wherein, at least a part of the heating component is arranged inside the third tubular body or on the third tubular body.

[0037] As an example, the third tubular body includes a thermal insulation tube.

[0038] As an example, the first module also includes a lower end cover and an electrode fixed on the lower end cover, the lower end cover is sealingly connected to the distal end of the second tubular body, one end of the electrode is electrically connected to the resistive heating element, and the other end is electrically connected to the power supply assembly.

[0039] As an example, the heating component includes an air heater disposed in the air flow channel, and the air heater is used to heat the air flowing through the air channel so as to heat the aerosol generating article by the hot air.

[0040] As an example, the first module includes an upper end cover, the insertion port is opened on the upper end cover, and the upper end cover includes an operating part. When the first module is connected to the second module, the operating part is located outside the second module for user operation.

[0041] As an example, the air flow channel is connected to the outside air through the insertion port.

[0042] An aerosol generating device provided in an embodiment of the present application includes:

[0043] A first module having a receiving cavity therein, an insertion port for inserting at least part of the aerosol generating product into the receiving cavity is provided at a proximal end of the first module, the first module comprising a first tubular body defining at least part of the receiving cavity, a second tubular body integrally formed with the first tubular body, a third tubular body at least partly disposed in the second tubular body, and a heating component for directly or indirectly heating the aerosol generating product, wherein at least part of the heating component is disposed in the third tubular body or arranged on the third tubular body; and

[0044] The second module includes a power supply component, which is used to provide power for the heating component to generate heat;

[0045] A first airflow channel connected to the outside air is provided between the first tubular body and the second tubular body, and a second airflow channel connected to the first airflow channel and the far end of the accommodating cavity is provided between the second tubular body and the third tubular body.

[0046] In the above aerosol generating device, there is an optical path between the photoelectric detection component and the accommodating cavity. At least part of the light emitted by the photoelectric detection component and / or at least part of the light reflected by the aerosol generating product propagates along the optical path. The tube component includes a first light-transmitting portion arranged on the optical path, which is used to guide the external air to the airflow channel at the far end of the accommodating cavity. Although the airflow channel is at least partially defined by the tube assembly, the airflow channel is arranged to bypass the first light-transmitting portion, so that the gas flowing back along the airflow channel can bypass the first light-transmitting portion. Therefore, the optical path can be prevented from being blocked and disturbed, and the optical path can be ensured to be unobstructed, which is conducive to the photoelectric detection component maintaining good detection performance during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0048] Figure 1 is a schematic diagram of an aerosol generating device provided in one embodiment of the present application;

[0049] Figure 2 is a cross-sectional view of an aerosol generating device provided in one embodiment of the present application;

[0050] Figure 3 is a partial cross-sectional view of an aerosol generating device provided in one embodiment of the present application;

[0051] Figure 4 is another partial cross-sectional view of an aerosol generating device provided by one embodiment of the present application;

[0052] Figure 5 is a cross-sectional view of a first module provided by an embodiment of the present application;

[0053] Figure 6 is an exploded schematic diagram of a first module provided in one embodiment of the present application;

[0054] Figure 7 is an exploded sectional view of a first module provided by an embodiment of the present application;

[0055] Figure 8 is a schematic diagram of a first tubular body and a second tubular body provided in an embodiment of the present application;

[0056] Fig. 9 A schematic diagram of a first module being removed from a second module in an aerosol generating device provided in an embodiment of the application;

[0057] In the figure:

[0058] 1. First module; 11. Tube assembly; 111. First tubular body; 1111. Open mouth; 112. Second tubular body; 1121. Protruding strip; 1122. Strip groove; 113. Third tubular body; 1131. Gas layer; 12. Accommodating cavity; 121. First accommodating cavity; 122. Second accommodating cavity; 13. Air flow channel; 131. First air flow channel; 132. Second air flow channel; 14. First light-transmitting portion; 141. First through hole; 142. First lens; 15. Sealing member; 16. Heating assembly; 17. Lower end cover; 18. Electrode; 19. Upper end cover; 191. Insertion port;

[0059] 2. Second module; 21. Bracket; 22. Receiving cavity; 23. Photoelectric detection component; 24. Second lens; 25. Power supply component. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] The terms "first", "second", "third" in the present application are only used for descriptive purposes, and cannot be understood as indicating or suggesting relative importance or implicitly indicating the quantity or order of the indicated technical features. In the present application embodiment, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement between the components under a certain specific posture (as shown in the accompanying drawings), and 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, the process, method, system, product or equipment comprising 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.

[0062] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0063] 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 a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be one or more central elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0064] Please refer to Figure 1 and Fig. 9 An embodiment of the present application provides an aerosol generating device, which is a device that enables an aerosol generating product to generate aerosol without burning.

[0065] As used herein, the term "aerosol-generating article" refers to an article comprising an aerosol-forming substrate that is capable of releasing volatile compounds that can form an aerosol when a certain temperature is reached. The aerosol formed by heating the aerosol-forming substrate may contain fewer components known to be hazardous than an aerosol produced by combustion or pyrolytic degradation of the aerosol-forming substrate. In an embodiment, the aerosol-generating article is removably coupled to the aerosol-generating device. The aerosol-generating article may be disposable or reusable.

[0066] Aerosol forming substrate can comprise solid aerosol forming substrate.Solid aerosol forming substrate can comprise tobacco-containing material, and described tobacco-containing material contains volatile tobacco flavor compounds released from described substrate when heating.Solid aerosol forming substrate can comprise non-tobacco material.Solid aerosol forming substrate can comprise tobacco-containing material and do not contain tobacco material.When aerosol forming substrate is solid aerosol forming substrate, aerosol generating product can be cigarette block, cigarette stick, cigarette rod or cigar etc.

[0067] In one embodiment, the aerosol-generating article further comprises a mouthpiece, and when the aerosol-generating article is connected to the aerosol-generating device, the mouthpiece is exposed outside the aerosol-generating device for the user to hold in the mouth, and the user sucks on the mouthpiece to inhale the aerosol generated in the aerosol-forming substrate. In other embodiments, the aerosol-generating device comprises a mouthpiece for the user to hold in the mouth, and in this embodiment, when the aerosol-generating article is connected to the aerosol-generating device, the aerosol-generating article can be completely hidden in the aerosol-generating device.

[0068] In one embodiment of the present application, please refer to Figure 1 and Fig. 9 The aerosol generating device comprises a first module 1 and a second module 2 . The first module 1 has a containing cavity 12 . When the aerosol generating product is connected to the aerosol generating device, at least a part of the aerosol generating product is contained in the containing cavity 12 .

[0069] The first module 1 may include a tube assembly 11 in which a housing cavity 12 is formed. The proximal end of the tube assembly 11 is open and has an open port 1111. When the aerosol generating product is connected to the aerosol generating device, the aerosol generating product is inserted into the housing cavity 12 through the open port 1111 and maintained.

[0070] The second module 2 has a receiving cavity 22 therein. When the first module 1 is connected to the second module 2 , at least a portion of the first module 1 is disposed in the second module 2 .

[0071] In the first aspect of the present application, reference may be made to Figure 3-Figure 8 , is to provide an aerosol generating device, the aerosol generating device includes a photoelectric detection component 23, and an optical path is provided between the photoelectric detection component 23 and the containing cavity 12, at least part of the light emitted by the photoelectric detection component 23 and / or at least part of the light reflected by the aerosol generating product propagates along the optical path, wherein an air flow channel 13 in the aerosol generating device connecting the outside air and the containing cavity 12 is arranged to bypass the optical path to prevent the optical path from being blocked by condensate or oil formed by the aerosol.

[0072] More specifically, the photoelectric detection component 23 is a component of the second module 2, and the tube assembly 11 includes a first light-transmitting portion 14 arranged on the optical path, the first light-transmitting portion 14 having a first end and a second end. When the first module 1 is connected to the second module 2, at least part of the light emitted by the photoelectric detection component 23 can pass through the second end of the first light-transmitting portion 14 to enter the interior of the first light-transmitting portion 14, and then be emitted into the accommodating cavity 12 from the first end of the first light-transmitting portion 14; and / or, at least part of the light reflected by the aerosol-generating product in the accommodating cavity 12 can pass through the first end of the first light-transmitting portion 14 to enter the interior of the first light-transmitting portion 14, and then be emitted from the second end of the first light-transmitting portion 14 to be received by the photoelectric detection component 23.

[0073] At least a portion of the airflow channel 13 is disposed in the tube assembly 11 , and the external air flows into at least a portion of the accommodating cavity 12 and needs to flow through the interior of the tube assembly 11 .

[0074] Among them, the airflow channel 13 bypasses the light path setting in the first light-transmitting portion 14, that is, the airflow channel 13 is isolated from the first end, the second end and the interior of the first light-transmitting portion 14, thereby preventing the aerosol flowing back along the airflow channel 13 from blocking the light path and affecting the propagation of light along the light path.

[0075] As an example, the photoelectric detection component 23 includes a transmitter for emitting light and a receiver for receiving the light emitted by the transmitter. The transmitter and the receiver are arranged on opposite sides of the accommodating cavity 12, so that the light emitted by the transmitter needs to enter the accommodating cavity 12 along the optical path first, and then be emitted from the accommodating cavity 12 to be received by the receiver. When the position of the aerosol generating product in the accommodating cavity 12 reaches a preset position, the aerosol generating product blocks the light, and the optical path between the transmitter and the receiver is disconnected, so that the receiver cannot receive the light emitted by the transmitter. Based on this, the controller in the aerosol generating device can control the aerosol generating device to make a corresponding response, such as controlling the motor in the aerosol generating device to vibrate, controlling the LED on the aerosol generating device to flash, etc., and can also control the heating component 16 in the aerosol generating device to generate heat to heat the aerosol generating product.

[0076] Alternatively, as an example, the photoelectric detection component 23 includes a transmitter for emitting light and a receiver for receiving the light emitted by the transmitter, and the transmitter and the receiver in the photoelectric detection component 23 are approximately located on the same side of the accommodating cavity 12, so that the light emitted by the transmitter in the photoelectric detection component 23 needs to enter the accommodating cavity 12 along the optical path first, and when the emitted light irradiates the preset label on the aerosol generating product, the preset label reflects the light to form reflected light, and the reflected light continues to propagate along the optical path after turning until it is received by the receiver in the photoelectric detection component 23. The controller in the aerosol generating device can determine that the aerosol generating product has been inserted into the preset position in the accommodating cavity 12 based on the reflected light received by the receiver, and then control the aerosol generating device to make a corresponding response, such as controlling the motor in the aerosol generating device to vibrate, controlling the LED on the aerosol generating device to flash, etc., and can also control the heating component 16 in the aerosol generating device to generate heat to heat the aerosol generating product. Alternatively, the controller in the aerosol generating device can obtain attribute information carried in the reflected light for characterizing the specifications of the aerosol generating product based on the reflected light received by the receiver, and the attribute information includes the color, production date, manufacturer information, taste information or required heating information of the aerosol generating product.

[0077] As an example, see Figure 4 The airflow channel 13 is used to guide the external air to the far end of the accommodating chamber 12, so that the airflow channel 13 and the accommodating chamber 12 are independent of each other. When the external air flows into the far end of the accommodating chamber 12 along the airflow channel 13, the air in the airflow channel 13 is isolated from the first end of the first light-transmitting portion 14. Therefore, the air can bypass the first end of the first light-transmitting portion 13 and enter the accommodating chamber 12. When the aerosol flows back, the aerosol can be prevented from adhering to the first end of the first light-transmitting portion 14.

[0078] As an example, see Figure 5-Figure 7The tube assembly 11 includes a first tubular body 111 and a second tubular body 112 arranged outside the first tubular body 111, the airflow channel 13 includes a first airflow channel 131, and the first airflow channel 131 is arranged between the first tubular body 111 and the second tubular body 112; the first light-transmitting portion 14 includes a first through hole 141 that penetrates the first tubular body 111 and the second tubular body 112 and a first lens 142 that allows light to pass through, the first lens 142 can be made of glass, crystal or transparent plastic, etc., and the first lens 142 can include a flat lens, a concave lens or a convex lens.

[0079] The first lens 142 includes a first surface 1421 and a second surface 1422, and the light path can pass through the first surface 1421 and the second surface 1422. The first surface 1421 can be arranged facing the accommodating cavity 12, and the second surface 1422 can be arranged facing the photoelectric detection component 23; or, the first surface 1421 can be located at the first end of the first light-transmitting portion 14, and the second surface 1422 can be located at the second end of the first light-transmitting portion 14.

[0080] At least part of the first lens 141 is disposed in the first through hole 141. In this example, the first airflow channel 131 can be disposed around the first through hole 141, so as to be isolated from the first through hole 141 and not connected to each other, and the gas in the airflow channel 13 is isolated from the third surface 1423 of the first lens 142; or, when the first lens 142 is kept in the first through hole 141, the first lens 142 can block the opening of the airflow channel 13 toward the first through hole 141, so that the gas in the airflow channel 13 can contact the third surface 143 of the first lens 142, but cannot flow out of the first through hole 141. Wherein, the third surface 1423 of the first lens 142 is disposed between the first surface 1421 and the second surface 1422, the third surface 1423 is not coplanar with the first surface 1421 and the second surface 1422, and the third surface 1423 can be perpendicular to the first surface 1421 and / or the second surface 1422. Wherein, the first surface 1421 and the second surface 1422 can be parallel to each other.

[0081] Alternatively, as an example, you can refer to Figure 4 , the first light-transmitting portion 14 may include a first through hole 141 penetrating the first tubular body 111 and the second tubular body 112, but does not include a first lens 142 disposed in the first through hole 141. In this example, the first airflow channel 131 is disposed around the first through hole 141, so as to be isolated from the first through hole 141 and not communicated with each other, thereby preventing the backflow aerosol from entering the first through hole 141.

[0082] As an example, see Figure 2 and Figure 3The second module 2 includes a bracket 21 having a receiving cavity 22, and at least a part of the tube assembly 11 is accommodated in the receiving cavity 22. When the first module 1 is connected to the second module 2, the first light-transmitting portion 14 is located in the receiving cavity 22, so that the second surface 1422 of the first lens 142 is arranged facing the bracket 21, and the second surface 1422 of the first lens 141 can therefore be connected to the receiving cavity 22 between the tube assembly 11 and the bracket 21 without obstruction.

[0083] The first light-transmitting portion 13 is disposed between the proximal end and the distal end of the second tubular body 112, and the first light-transmitting portion 14 can also be disposed between the proximal end and the distal end of the first tubular body 111. When the first lens 142 is disposed in the first through hole 141, it can block the first through hole 141, thereby preventing the gas in the accommodating chamber 12 from leaking through the first through hole 141 to the receiving chamber 22 disposed outside the tube assembly 11.

[0084] Furthermore, the distal end of the first module 1 is sealed to prevent the backflow airflow from leaking from the distal end of the second tubular body 112 into the receiving cavity 22 between the bracket 21 and the second tubular body 112 , thereby adhering to the second surface 1422 .

[0085] For further information, please refer to Figure 2 and Figure 3 The bracket 21 includes a second through hole and a second lens 24 that allows light to pass through. The second lens 24 is arranged on the optical path and between the photoelectric detection component 23 and the first lens 14. The second lens 24 is arranged in the second through hole, so that the second through hole can be blocked, so that the receiving cavity 22 is isolated from the photoelectric detection component 23, so as to protect the photoelectric detection component 23 and prevent the gas in the receiving cavity 22 from passing through the second through hole and adhering to the photoelectric detection component 23. The material of the second lens 24 can be the same as that of the first lens 142, and the second lens 24 can include a flat lens, a concave lens, or a convex lens.

[0086] The light emitted by the photoelectric detection component 23 passes through the second lens 24 and the first lens 142 in sequence and then enters the accommodating cavity 12, and / or the light emitted by the aerosol generating product in the accommodating cavity 12 passes through the first lens 142 and the second lens 24 in sequence and then is received by the photoelectric detection component 23.

[0087] After the first module 1 is connected to the second module 2 , the first lens 142 and the second lens 24 may be spaced apart from each other, and the first lens 142 and the second lens 24 may be coaxially arranged.

[0088] As an example, see Figure 4-Figure 7The tube assembly 11 also includes a third tubular body 113, and the accommodating cavity 12 includes a first accommodating cavity 121 arranged in the first tubular body 111 and a second accommodating cavity 122 arranged in the third tubular body 113, so that when the aerosol generating product is connected to the first module 1, a part of the aerosol generating product is accommodated in the first tubular body 111, and a part passes through the first tubular body 111 and is accommodated in the third tubular body 113.

[0089] The airflow channel also includes a second airflow channel 132, which is disposed between the third tubular body 113 and the second tubular body 112; along the direction of the airflow during inhalation, the first airflow channel 131 is located upstream of the second airflow channel 132, so that during inhalation, the air in the first airflow channel 131 flows into the second airflow channel 132, and finally flows into the aerosol generating product through the distal end of the accommodating chamber 12. Figure 4 , Figure 5 , Figure 7 and Figure 8 In the illustrated embodiment, the inner wall of the second tubular body 112 has a convex strip 1121, and the convex strip 1121 abuts against the outer wall of the third tubular body 113, so that a gap exists between the second tubular body 112 and the third tubular body 113, forming the second air flow channel 132. It is understandable that the convex strip can also be provided on the outer wall of the third tubular body, so that the convex strip can abut against the inner wall of the second tubular body, so that a gap exists between the second tubular body and the third tubular body, forming the second air flow channel.

[0090] For further information, please refer to Figure 3-Figure 7 The first module 1 also includes a seal 15, which is disposed between the first tubular body 111 and the second tubular body 112, and sealingly connects the first tubular body 111 and the second tubular body 112 to prevent the gas in the accommodating chamber 12 from leaking from between the first tubular body 111 and the second tubular body 112.

[0091] The sealing member may be flexible or elastic, for example, the sealing member may be made of silicone, rubber or the like.

[0092] A portion of the seal 15 can protrude into the accommodating cavity 12 to clamp the aerosol generating product, or be in close contact with the surface of the aerosol generating product and surround the aerosol generating product, thereby preventing the gas in the second accommodating cavity 122 from entering the first accommodating cavity 121 and adhering to the first surface 1421 of the first lens 142.

[0093] There is a gap between the sealing member 15 and the second tubular body 112 that connects the first airflow channel 131 and the second airflow channel 132, so as not to affect the connection between the first airflow channel 131 and the second airflow channel 132. Alternatively, the sealing member 15 is provided with a hole or a notch 151 that connects the first airflow channel 131 and the second airflow channel 132.

[0094] As an example, see Figure 3-Figure 5 The first module 1 further comprises a heating component 16 for directly or indirectly heating the aerosol generating product.

[0095] When the heating component 16 directly heats the aerosol-generating product, the heating component 16 releases heat directly toward the aerosol-generating product, so that the heat on the heating component 16 can be directly conducted to the aerosol-generating product or radiated to the aerosol-generating product in the form of infrared rays.

[0096] When the heating component 16 indirectly heats the aerosol-generating article, the heating component 16 first heats the medium to increase the temperature of the medium, and then the hot medium releases heat to the aerosol-generating article, thereby heating the aerosol-generating article.

[0097] The heating assembly 16 is spaced apart from the first light-transmitting portion 14 to protect the first light-transmitting portion 14 from being baked at high temperature.

[0098] At least a portion of the heating assembly 16 may be disposed inside the third tubular body 113 or arranged on the third tubular body 113 .

[0099] When at least part of the heating assembly 16 is arranged on the third tubular body 113, the heating assembly 16 includes a circumferential heating element, which is arranged on the periphery of the aerosol generating article, and the circumferential heating element can be arranged around the aerosol generating article. For example: the circumferential heating element can be a heating coating arranged on the third tubular body 113. The heating coating can be a resistive coating capable of generating Joule heat or an infrared coating capable of radiating infrared rays, etc. For example: the circumferential heating element can be an electric heating wire wound on the third tubular body 113. For example: the circumferential heating element can be a tubular electromagnetic heating element, and the term "electromagnetic heating element" refers to a material that can convert electromagnetic energy into heat. When located in a changing electromagnetic field, the eddy current induced in the electromagnetic heating element causes the electromagnetic heating element to heat. Among them, the electromagnetic heating element may include metal or carbon. In one embodiment, the electromagnetic heating element may include a ferromagnetic material, such as ferrite, ferromagnetic steel or stainless steel. In one embodiment, the electromagnetic heating element includes a nickel-iron alloy. In one embodiment, the electromagnetic heating element comprises 400 series stainless steel, which includes 410 grade, 420 grade or 430 grade stainless steel.

[0100] When at least part of the heating component 16 is disposed inside the third tubular body 113, the heating component 16 includes a central heating element and / or an air heater. At least part of the central heating element extends into the second accommodating cavity 122, from which it can be inserted into the interior of the aerosol generating product, so that the aerosol generating product can be heated inside. The central heating element can be roughly needle-shaped, sheet-shaped, rod-shaped or token-shaped. The air heater heats the aerosol generating product by indirect heating. Specifically, along the direction of the airflow during inhalation, the air heater is disposed upstream of the second accommodating cavity 122 to heat the air flowing through. The hot air enters the aerosol generating product as the user inhales, and then heats the aerosol generating product.

[0101] It should be noted that it is optional and not mandatory to dispose at least a part of the air heater inside the third tubular body 112 . For example, in other embodiments, at least a part of the air heater may be disposed in the second air flow channel 132 .

[0102] As an example, see Figure 3-Figure 6 The first module 1 also includes a lower end cover 17 that supports the heating component 16 so that at least a portion of the heating component 16 is maintained inside the second tubular body 112. The lower end cover 17 is sealingly connected to the distal end of the second tubular body 112 to prevent the backflow of air from leaking from the distal end of the second tubular body 112 into the second module 2. In other words, the lower end cover 17 is used to seal the distal end of the second tubular body 112.

[0103] Please refer to Figure 3 The accommodating cavity 12 extends longitudinally, the longitudinal length of the second tubular body 112 is greater than the longitudinal length of the first tubular body 111, the heating component 16 is arranged in the second tubular body 112, and in the longitudinal direction, the heating component 16 and the first tubular body 111 are staggered.

[0104] The heating component 16 is an electric heating component, which generates heat by converting electrical energy into thermal energy. Based on this, the second module 2 includes a power supply component 25, which is used to provide power for the heating component 16 to generate heat.

[0105] In order to ensure the sealing of the lower end cover 17. In one example, the heating assembly 16 includes an electromagnetic heating element capable of generating heat in a changing magnetic field, so that the electromagnetic heating element does not need to be electrically connected to the power supply assembly 25 through a wire or an electrode; at the same time, the first module 1 or the second module 2 includes a magnetic field generator, which is electrically connected to the power supply assembly 25 to generate a changing magnetic field that causes the electromagnetic heating element to generate heat; preferably, the magnetic field generator is a component of the second module 2, so that the magnetic field generator can be electrically connected to the power supply assembly 25 outside the lower end cover 17; or, preferably, the magnetic field generator is arranged on the periphery of the tube assembly 11 and / or the lower end cover 17, or the electrode 18 electrically connected to the magnetic field generator is at least partially exposed outside the tube assembly 11 and / or the lower end cover 17, so that when the first module 1 is connected to the second module 2, the magnetic field generator or the electrode 18 can be electrically connected to the power supply assembly 25 in the second module 2.

[0106] In another example, the heating assembly 16 includes a resistive heating element 161 capable of generating Joule heat, and the first module 1 further includes an electrode 18 fixed to the lower end cover 17, one end of the electrode 18 is electrically connected to the resistive heating element 161, and the other end is electrically connected to the power supply assembly 25. Preferably, the other end is exposed outside the tube assembly 11 and / or the lower end cover 17, and when the first module 1 is connected to the second module 2, the electrode 161 can be electrically connected to the power supply assembly 25 in the second module 2.

[0107] As an example, see Figure 7 and Figure 8 , a strip groove 1122 is provided on the inner wall of the second tubular body 112, and the strip groove 1122 extends to the distal end of the second tubular body 112, and a positioning portion 171 is provided on the lower end cover 17. During the assembly process of the lower end cover 17 and the second tubular body 112, the user can align the positioning portion 171 with the strip groove 1122 of the second tubular body 112, and then move the positioning portion 171 along the strip groove 1122. The strip groove 1122 is used to guide the lower end cover 17 to be assembled with the second tubular body 112 in a preset direction. It can be understood that the strip groove can be provided on the lower end cover, and correspondingly, the positioning portion is provided on the second tubular body.

[0108] The second aspect of the present application is to provide an aerosol generating device. The aerosol generating device provided by the second aspect may include part or all of the technical features and technical solutions of any embodiment or example of the aerosol generating device provided by the first aspect. However, it should be noted that, in some embodiments, the photoelectric detection component 23 in the aerosol generating device provided by the second aspect is optional but not mandatory, and the technical solution provided by the second aspect may be independent of the technical solution provided by the first aspect.

[0109] In the aerosol generating device of the second aspect, reference may be made to Figure 1, Figure 2 and Fig. 9 The first module 1 includes a heating assembly 16 for directly or indirectly heating the aerosol generating product, and also includes a receiving cavity 12 for receiving at least part of the aerosol generating product, and the second module 2 includes a power supply module 25 for providing power for the heating assembly 16 to generate heat. At least part of the first module 1 is removably disposed in the second module 2. Thus, the first module 1 can be removed from the second module 2 to clean or replace the first module 1.

[0110] In the aerosol generating device, the air flow channel 13 for guiding the external air to the far end of the accommodating chamber is defined in the first module 1. Furthermore, the air flow channel 13 is defined in the first module 1. This prevents the gas in the accommodating chamber 12 from flowing into the second module 2, which helps to keep the second module 2 clean.

[0111] As an example of the second aspect, see Figure 3 and Figure 4 The heating assembly 16 includes an air heater disposed in the air flow channel 13, and the air heater is used to heat the air flowing through the air flow channel 13 so as to heat the aerosol generating product by the hot air.

[0112] Based on this, as an example, you can refer to Figure 3 and Figure 4 The first module 1 includes a first tubular body 111, a second tubular body 112 and a third tubular body 113. The airflow channel 13 includes a first airflow channel 131 disposed between the first tubular body 111 and the second tubular body 112, and a second airflow channel 132 disposed between the second tubular body 112 and the third tubular body 113. In the direction of airflow during suction, the first airflow channel 131 is located upstream of the second airflow channel 132. The heating assembly 16 is at least partially disposed inside the third tubular body 113 or arranged on the third tubular body 113.

[0113] When the first module 1 is connected to the second module 2, the heating component 16 can obtain power for heating by directly conducting the connection with the power supply component 25, or the heating component 16 can generate heat based on the changing magnetic field provided by the magnetic field generator in the second module 2. When the first module 1 is removed from the second module 2, the electrical connection between the first module 1 and the power supply component 25 is disconnected, or the first module 1 can be out of the range of the magnetic field provided by the magnetic field generator in the second module 2.

[0114] As an example, see Figure 3 and Figure 4The first module 1 also includes a lower end cover 17 and an electrode 18 fixed on the lower end cover 17. The lower end cover 17 is sealingly connected to the distal end of the second tubular body 112, thereby sealing the distal end of the second tubular body 112 to prevent the gas or liquid in the accommodating chamber 12 from leaking into the second module 2 through the distal end of the second tubular body 112.

[0115] Among them, one end of the electrode 18 is electrically connected to the resistive heating element 161 in the air heater, and when the first module 1 is connected to the second module 2, the other end of the electrode 18 is electrically connected to the conductive terminal 251 of the power supply component 25, and the electrode 18 and the conductive terminal 251 can be electrically connected in a manner that the two abut against each other, and the abutment can be elastic abutment.

[0116] The electrode 18 can be formed into an integral structure with the lower end cover 17 by insert injection molding.

[0117] As an example, see Figure 3 and Figure 4 The third tubular body 113 includes an insulating tube, at least a portion of the heating component 16 is arranged on the inner wall of the third tubular body 113 or at least a portion of the heating component 16 is located inside the third tubular body 113, and the third tubular body 113 can prevent the heat of the heating component 16 from being transferred to the second air flow channel 132. The insulating tube can be made of insulating material, and the insulating material refers to a material whose thermal conductivity is less than 40W / (m·K) at 23°C and 50% relative humidity, preferably less than 10W / (m·K) or less than 1W / (m·K). Suitable insulating materials include, but are not limited to: aerosol, felt, glass fiber or glass felt, etc. The insulating tube can be a tube with a gas layer in the tube wall, and the gas layer 1131 can be a closed gas layer, for example, a negative pressure layer.

[0118] As an example, see Figure 2-Figure 4 and Fig. 9 The first module 1 comprises an upper end cover 19, which is located at the proximal end of the first module 1. The upper end cover 19 is provided with an insertion port 191 for at least partially inserting the aerosol generating product into the accommodating cavity.

[0119] The upper cover 19 includes an operating portion 192 . When the first module 1 and the second module 2 are connected, the operating portion 192 is located outside the second module 2 for user operation. The user can remove the first module 1 from the second module 2 by operating the operating portion 192 .

[0120] As an example, see Figure 4 and Fig. 9The upper end cover 19 is connected to the tube assembly 11, and the insertion port 191 is arranged corresponding to the open port 1111 of the tube assembly 11, and the insertion port 191 and the open port 1111 can be arranged coaxially. The airflow channel 13 defined in the tube assembly 11 can be connected to the outside air through the insertion port 191, and the outside air enters the airflow channel 13 through the insertion port 191.

[0121] When the first module 1 is connected to the second module 2 , the first module 1 and the second module 2 are magnetically attracted to each other, so that the tube assembly 11 in the first module 1 can be retained in the receiving cavity 21 .

[0122] In any of the above embodiments where the tube assembly 11 includes the first tubular body 111 and the second tubular body 112 , the first tubular body 111 and the second tubular body 112 may be integrally formed to simplify the assembly process of the first module 1 .

[0123] In a third aspect of the present application, an aerosol generating device is provided, comprising:

[0124] A first module 1 has a receiving cavity 12 therein, an insertion port 192 for inserting at least part of an aerosol generating product into the receiving cavity 11 is provided at a proximal end of the first module 1, the first module 1 comprises a first tubular body 111 defining at least part of the receiving cavity 12, a second tubular body 112 integrally formed with the first tubular body 112, a third tubular body 113 at least partly disposed in the second tubular body 112, and a heating assembly 16 for directly or indirectly heating the aerosol generating product, wherein at least part of the heating assembly 16 is disposed in the third tubular body 113 or arranged on the third tubular body 113; and

[0125] The second module 2 includes a power supply component 25, which is used to provide power for the heating component 16 to generate heat;

[0126] A first air flow channel 131 communicating with the outside air is defined between the first tubular body 111 and the second tubular body 112 , and a second air flow channel 132 communicating with the first air flow channel 131 and the distal end of the accommodating cavity 12 is defined between the second tubular body 112 and the third tubular body 113 .

[0127] In the third aspect, the photoelectric detection component 23 is optional and not mandatory, and at least a part of the first module 1 can be removed from the second module 2 is optional and not mandatory.

[0128] It should be noted that any one or more of the above embodiments and examples can be combined with each other to form a joint technical solution; in some embodiments, part or all of the technical features or technical solutions of any two of the first aspect, the second aspect and the third aspect may be contained at the same time.

[0129] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill 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 the present application.

Claims

1. An aerosol generating device, characterized in that: include: A first module, comprising a tube assembly having a receiving cavity, wherein a proximal end of the tube assembly has an open opening for inserting at least a portion of the aerosol generating article into the receiving cavity; a second module having a photoelectric detection assembly disposed therein, wherein the first module is at least partially contained in the second module, and the photoelectric detection assembly is disposed outside the tube assembly, an optical path is defined between the photoelectric detection assembly and the containing cavity, and at least part of the light emitted by the photoelectric detection assembly and / or at least part of the light reflected by the aerosol generating article propagates along the optical path; and an air flow channel, which is at least partially disposed in the tube assembly, and is used to guide external air to the distal end of the accommodating cavity; Wherein, the tube assembly includes a first light-transmitting portion arranged on the light path, and the airflow channel is arranged to bypass the light path in the first light-transmitting portion.

2. The aerosol generating device according to claim 1, characterized in that: The tube assembly includes a first tubular body and a second tubular body jacketed on the first tubular body, and the airflow channel includes a first airflow channel, and the first airflow channel is arranged between the first tubular body and the second tubular body; The first light-transmitting portion includes a first through hole penetrating the first tubular body and the second tubular body, and the first airflow channel is arranged to bypass the first through hole.

3. The aerosol generating device according to claim 2, characterized in that: The first light-transmitting portion includes a first lens that allows light to pass therethrough, and the first lens is disposed in the first through hole.

4. The aerosol generating device according to claim 3, characterized in that: The second module comprises a support having a receiving cavity, the tube assembly is at least partially received in the receiving cavity, and the first lens comprises a first surface facing the receiving cavity and a second surface facing the support, the light path passes through the first surface and the second surface; The first light-transmitting portion is disposed between the proximal end and the distal end of the second tubular body; The distal end of the first module is sealed to prevent the backflow of air from leaking from the distal end of the second tubular body and contaminating the second surface.

5. The aerosol generating device according to claim 4, characterized in that: The bracket includes a second through hole and a second lens disposed in the second through hole and allowing light to pass through, wherein the second lens is disposed on the optical path and located between the photoelectric detection component and the first lens.

6. The aerosol generating device according to claim 2, characterized in that: The first tubular body and the second tubular body are integrally formed.

7. The aerosol generating device according to claim 2, characterized in that: The tube assembly further includes a third tubular body, the accommodating cavity includes a first accommodating cavity provided in the first tubular body and a second accommodating cavity provided in the third tubular body; The airflow channel comprises a second airflow channel, and the second airflow channel is arranged between the third tubular body and the second tubular body; Along the direction of air flow, the first air flow channel is located upstream of the second air flow channel.

8. The aerosol generating device according to claim 7, characterized in that: The first module further includes a sealing member, which is disposed between the first tubular body and the second tubular body and seals the first tubular body and the second tubular body; A gap connecting the first air flow channel and the second air flow channel is provided between the sealing member and the second tubular body; or The sealing member is provided with a hole or a notch connecting the first air flow channel and the second air flow channel.

9. The aerosol generating device according to claim 7, characterized in that: The first module further comprises a heating component for directly or indirectly heating the aerosol-generating article, wherein at least a portion of the heating component is disposed inside the third tubular body or arranged on the third tubular body.

10. The aerosol generating device according to claim 9, characterized in that The heating assembly comprises an air heater at least partially disposed in the third tubular body, and the air heater is located upstream of the second accommodating cavity along the direction of air flow.

11. The aerosol generating device according to claim 2, characterized in that: The first module also includes a heating component and a lower end cap that supports the heating component so that the heating component is at least partially maintained inside the second tubular body. The heating component is used to directly or indirectly heat the aerosol generating product. The lower end cap is sealingly connected to the distal end of the second tubular body to prevent backflow airflow from leaking from the distal end of the second tubular body into the second module.

12. The aerosol generating device according to claim 11, characterized in that The second module includes a power supply component; wherein The heating component includes an electromagnetic heating element capable of generating heat in a changing magnetic field, and the first module or the second module includes a magnetic field generator, and the magnetic field generator is electrically connected to the power supply component to generate a changing magnetic field that causes the electromagnetic heating element to generate heat; or The heating component includes a resistive heating element, and the first module also includes an electrode fixed on the lower end cover, one end of the electrode is electrically connected to the resistive heating element, and the other end of the electrode is electrically connected to the power supply component.

13. An aerosol generating device, characterized in that: include: A first module having a receiving cavity therein, wherein a proximal end of the first module is provided with an insertion port for inserting at least a portion of an aerosol generating article into the receiving cavity, and the first module comprises a heating component, wherein the heating component is used to directly or indirectly heat the aerosol generating article to generate an aerosol; The second module includes a power supply component, wherein the power supply component is used to provide power for the heating component to generate heat; and An air flow channel is defined in the first module, and is used to guide external air to the far end of the accommodating cavity; Wherein, at least a part of the first module is removably arranged in the second module.

14. The aerosol generating device according to claim 13, characterized in that The first module includes a first tubular body, a second tubular body and a third tubular body, and the airflow channel includes a first airflow channel arranged between the first tubular body and the second tubular body, and a second airflow channel arranged between the second tubular body and the third tubular body; Along the direction of air flow, the first air flow channel is located upstream of the second air flow channel; Wherein, at least a part of the heating component is arranged inside the third tubular body or on the third tubular body.

15. The aerosol generating device according to claim 14, characterized in that The third tubular body includes a heat-insulating tube.

16. The aerosol generating device according to claim 14, characterized in that The first module also includes a lower end cover and an electrode fixed on the lower end cover, the lower end cover is sealingly connected to the distal end of the second tubular body, one end of the electrode is electrically connected to the heating component, and the other end is electrically connected to the power supply component.

17. The aerosol generating device according to claim 13, characterized in that The heating assembly comprises an air heater disposed in the air flow channel, the air heater being used to heat air flowing therethrough so as to heat the aerosol generating article by means of the hot air.

18. The aerosol generating device according to claim 13, characterized in that The first module includes an upper end cover, the insertion port is opened on the upper end cover, and the upper end cover includes an operating part. When the first module is connected to the second module, the operating part is located outside the second module for user operation.

19. The aerosol generating device according to claim 18, characterized in that The air flow channel is communicated with the external air through the insertion port.

20. An aerosol generating device, characterized in that: include: A first module having a receiving cavity therein, an insertion port for inserting at least a portion of an aerosol generating product into the receiving cavity is provided at a proximal end of the first module, the first module comprising a first tubular body defining at least a portion of the receiving cavity, a second tubular body integrally formed with the first tubular body, a third tubular body at least partially disposed in the second tubular body, and a heating component for directly or indirectly heating the aerosol generating product, wherein at least a portion of the heating component is disposed in the third tubular body or arranged on the third tubular body; and The second module includes a power supply component, wherein the power supply component is used to provide power for the heating component to generate heat; A first airflow channel connected to the outside air is provided between the first tubular body and the second tubular body, and a second airflow channel connected to the first airflow channel and the far end of the accommodating cavity is provided between the second tubular body and the third tubular body.

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