WO2023226286A1

WO2023226286A1 - Electronic atomizer and aerosol generation device

Info

Publication number: WO2023226286A1
Application number: PCT/CN2022/126251
Authority: WO
Inventors: 莫和臣; 刘才学; 杨扬彬; 胡文超
Original assignee: 深圳市基克纳科技有限公司
Priority date: 2022-05-23
Filing date: 2022-10-19
Publication date: 2023-11-30

Abstract

Provided are an electronic atomizer (10) and an aerosol generation device. The electronic atomizer (10) comprises a heating body (100), a heating tube (200) and a directional heating assembly (300), wherein the heating body (100) generates heat; the heating tube (200) is connected to the heating body (100) to conduct heat of the heating body (100); a cigarette (400) is provided inside the heating tube (200); the cigarette (400) is fixed in the heating tube (200) and is attached to an inner wall of the heating tube (200); and the directional heating assembly (300) is arranged in the heating tube (200), is located between the heating body (100) and the cigarette (400), and transfers a hot airflow generated by means of the heating body (100) to a local position of the cigarette (400). By means of the electronic atomizer (10) and the aerosol generation device, the content of nicotine is good in terms of balance and the vaping time is long when a user vapes, thereby improving the user experience.

Description

Electronic nebulizers and aerosol generating devices

Cross-references to related applications

This application claims priority based on four Chinese patent applications submitted on May 23, 2022. The application numbers are 202221251880.6, 202221261325.1, 202221261272.3, and 202221251888.2. All the recorded contents are incorporated herein by reference.

Technical field

The invention relates to the field of electronic technology, and in particular to an electronic atomizer and an aerosol generating device.

Background technique

Smoking articles (e.g., cigarettes, cigars, and the like) burn tobacco during use to produce tobacco smoke. For these types of products, which release an inhalable aerosol or vapor by heating but without burning, these may be referred to as electronic atomizers or aerosol-generating devices.

Traditional circumferential electronic atomizers or aerosol generating devices usually use the bottom hot air flow heating method. The air intake method is generally direct air intake, so that the air flow directly passes through the cigarette. During the use of electronic atomizers or aerosol-generating devices, when the airflow temperature rises, all nicotine is easily taken out directly, resulting in excessively high nicotine content in the first few puffs, lower nicotine content in subsequent puffs, and poor balance. The suction time is too short.

technical problem

The present invention provides an electronic atomizer and an aerosol generating device, so that the nicotine content is well balanced and the puffing time is long when the user puffs, so as to improve the user experience.

Technical solutions

In order to solve the above technical problems, the first technical solution provided by this application is to provide an electronic atomizer, which includes a heating element, a heating tube and a directional heating component. The heating element generates heat; the heating tube is connected to the heating element to conduct the heat of the heating element, and a cigarette is arranged in the heating tube. The cigarette is fixed in the heating tube and adheres to the inner wall of the heating tube; the directional heating component is arranged in the heating tube. And it is located between the heating element and the cigarette, and transfers the hot air flow generated by the heating element to the local position of the cigarette.

Optionally, the directional heating component includes a heat exchange core and a flow guide. The heat exchange core is arranged between the flow guide and the heating element, and the heat exchange core is provided with a plurality of air inlet holes distributed in an array. One end is opposite to the guide piece, and the other end is opposite to the heating element;

The flow guide is fixedly connected to the heat exchange core, and a cavity is formed between the flow guide and the air inlet. The side of the flow guide facing the cigarette is provided with an air outlet, and the air outlet faces a local position of the cigarette. The air outlet and the air inlet are The cavity and the air inlet are connected.

Optionally, the air outlet includes a plurality of air outlets. The plurality of air outlets are arranged on the edge of the guide member, penetrate the guide member, and are opposite to the edge of the cigarette.

Optionally, both the heat exchange core and the flow guide are cylindrical, with multiple air outlets evenly distributed around the central axis of the flow guide; the bottom of the flow guide is provided with a boss, and the boss is set opposite to the heat exchange core, and The boss is arranged at the center of the flow guide; the surface of the boss is arc-shaped, and the height of the boss gradually decreases from the top to the bottom of the boss.

Optionally, the air outlet includes a main air outlet and at least two secondary air outlets. The main air outlet is arranged in the center of the guide member, penetrates the guide member, and is opposite to the center of the cigarette; the secondary air outlets penetrate the guide member. ; The aperture of the secondary air outlet is smaller than the aperture of the main air outlet, and at least two secondary air outlets are evenly arranged around the main air outlet.

Optionally, a guide column is provided on the top of the guide member, and the guide column is arranged on a side of the guide member facing the cigarette, and the guide column is located in the center of the guide member, and the main air outlet passes through the guide column.

Compared with the heat-not-burn electronic atomizer that directly faces the cigarette with the heating element, so that the hot air flow passing through the heating element directly heats the entire cigarette, the electronic atomizer provided by the first solution combines the cigarette and heat generation. A directional heating component is added between the cigarettes, and the hot air flow is introduced into the local position of the cigarette through the directional heating component, so that the hot air flow brings out the nicotine in the local position of the cigarette, thereby realizing the process of gradual release of nicotine and improving the balance of smoking of the cigarette. It also lengthens the use time of cigarettes and enhances the user experience.

In order to solve the above technical problems, the second technical solution provided by this application is to provide an aerosol generating device, including a heating tube and an air heat exchange drainage device; the heating tube is used to place cigarettes; the air heat exchange drainage device is fixed on the heating The inside of the tube is used to heat the gas entering the aerosol generating device from the outside and introduce it into a local area of the cigarette; wherein, the air heat exchange and drainage device is an integrated structure.

Optionally, the air heat exchange drainage device includes a heat exchange core, a flow guide and a support. The heat exchange core is provided with multiple air inlets, and the heat exchange core heats the gas passing through the air inlets; the flow guide is set between the cigarette and the heat exchange core, and the flow guide is provided with an air outlet, and the air outlet is connected to the cigarette. The local area of the bottom is opposite; the support member is arranged between the heat exchange core and the flow guide, and both ends of the support member are connected to the heat exchange core and the flow guide respectively, and separate the heat exchange core and the flow guide.

Optionally, the support member is cylindrical and is located in the middle area of the air heat exchange and drainage device, and the central axis of the support member coincides with the central axis of the air heat exchange and drainage device;

The air outlet is arranged on the edge of the flow guide, away from the support member.

Optionally, the flow guide includes a bottom plate, a fixing ring and a top block, the air outlet is set on the bottom plate, the fixing ring is set around the bottom plate, and the fixing ring protrudes from the bottom plate in the direction toward the cigarette; the top plate is set on the bottom plate toward the cigarette. One side is located in the central area of the bottom plate, abutting the cigarette, and the top block and the air outlet are away from the air.

Optionally, the support member is annular and is located in the edge area of the air heat exchange and drainage device. The central axis of the support member coincides with the central axis of the air heat exchange and drainage device; the air outlet is provided in the middle area of the flow guide and is in contact with the support. Avoid the items.

Compared with the solution of directly introducing the hot air flow to the entire bottom of the cigarette, the second solution uses an air heat exchange and drainage device to first heat the air flow entering the inside of the product to form a hot air flow, and then introduce the hot air flow to a local area of the cigarette. , causing nicotine to be released in local areas of the cigarette, instead of rapidly releasing nicotine in all areas of the cigarette at the beginning, thereby realizing a gradual release process of nicotine and improving the uniformity of smoking of the cigarette; moreover, this solution The air heat exchange and drainage device is designed as an integrated structure to realize heating and air diversion functions at the same time. Compared with the solution of dividing it into two structures to realize one function each, it can enhance stability and reduce assembly steps.

In order to solve the above technical problems, the third technical solution provided by this application is to provide an aerosol generating device, including a heating tube, a heat exchange core and a flow guide. The heating tube is used to place cigarettes; the heat exchange core is provided with multiple air inlets, which are connected to the outside world, and the heat exchange core heats the gas entering the air inlet from the outside world; the flow guide is provided with an air inlet channel and an outlet The air hole and the air inlet channel are connected with the outside world, and introduce the outside air flow into the first area of the cigarette; the air outlet hole is connected with the air inlet hole of the heat exchange core, and lead the air flow heated by the heat exchange core into the second area of the cigarette. The first and second areas do not overlap.

Optionally, the flow guide includes a bottom plate, a snap ring and an air guide column. The bottom plate is a circular plate structure, and the air outlet is set on the bottom plate; the snap ring is set around the bottom plate, and the air guide column penetrates the bottom plate and is away from the air outlet. And the air guide column is hollow inside to form an air intake channel;

There is a hollow channel inside the heat exchange core, the air inlet hole and the hollow channel are spaced apart, and the air guide column runs through the hollow channel.

Optionally, the end of the air guide column protrudes from the side of the heat exchange core away from the flow guide.

Optionally, there is only one air guide column in the flow guide, the air guide column is located in the center of the flow guide, and the central axis of the air guide column coincides with the central axis of the flow guide;

The flow guide is provided with multiple air outlets, and the multiple air outlets are arranged around the air guide column;

Alternatively, the flow guide has multiple air guide pillars and one air outlet hole, the air outlet hole is located in the center of the flow director, and the multiple air guide pillars are arranged around the air outlet hole.

Optionally, one end of the air guide column facing the cigarette protrudes from the bottom plate and is in contact with the cigarette.

Compared with the scheme of introducing the hot air flow heated by the heat exchange core to the entire area of the cigarette, the third scheme not only uses the air outlet in the flow guide to introduce the hot air flow to the second area of the cigarette, but also uses drainage The air inlet channel in the device directly introduces the cold air flow from the outside into the first area of the cigarette. The first area and the second area are both local areas of the cigarette; the hot air flow acts on the cigarette, causing the cigarette to be baked. , causing nicotine to be released, and the cold air flow acts on the other part of the cigarette, which can neutralize the hot air flow and prevent the smoke from burning your mouth due to excessive smoke temperature; at the same time, it protects this part of the cigarette from being easily baked and slowly reaches the nicotine level. The release effect avoids the problem of continuous decline in the smoking taste of cigarettes and poor puff balance.

In order to solve the above technical problems, the fourth technical solution provided by this application is to provide an electronic atomizer, including a heating tube, a heat exchange core and a flow guide. A cigarette is provided in the heating tube, and the cigarette is fixed in the heating tube. , and is attached to the inner wall of the heating tube; the heat exchange core is fixed at one end of the heating tube. There are multiple air inlet holes distributed in an array in the heat exchange core. The heat exchange core heats the gas entering the electronic atomizer; it conducts The flow piece is arranged between the heat exchange core and the cigarette. The flow guide is fixedly connected to the heat exchange core, and a cavity is formed between the flow guide and the heat exchange core. The side of the flow guide facing the cigarette is provided with an air outlet. The air outlet faces the local position of the cigarette, and the air outlet, the cavity and the air inlet are connected.

Optionally, both the heat exchange core and the flow guide are cylindrical, and multiple air outlets are evenly distributed around the central axis of the flow guide;

The flow guide includes a bottom plate and a side plate. The bottom plate is cylindrical and the side plate is annular. The side plates are arranged around the bottom plate and are vertically connected to the bottom plate. Both ends of the side plates protrude from the bottom plate; the bottom plate is set on one side facing the heat exchange core. There is a boss, the boss is set opposite to the heat exchange core, and the boss is set in the center of the flow guide;

The surface of the boss is arc-shaped, and the height of the boss gradually decreases from the center to the edge of the boss.

Optionally, the height of the boss is less than the distance between the end of the side plate facing the heat exchange core and the bottom plate.

Optionally, the air outlet overlaps the edge of the boss and runs through the edge of the boss.

The electronic atomizer provided by the fourth solution introduces the hot air flow to the local position of the cigarette through the guide member, so that the hot air flow takes out the nicotine from the local position of the cigarette, thereby realizing the process of gradual release of nicotine and improving the smoking of the cigarette. The balance also extends the use time of cigarettes and enhances the user experience.

Description of the drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the application, and constitute a part of the specification for illustrating the embodiments of the application and together with the written description to explain the principles of the application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort. In the attached picture:

Figure 1 is a partial schematic diagram of an electronic atomizer provided by this application;

Figure 2 is an exploded schematic diagram of an electronic atomizer provided by the first embodiment of the present application;

Figure 3 is a schematic cross-sectional view of a flow guide provided by the first embodiment of the present application;

Figure 4 is a schematic diagram of a flow guide provided by the second embodiment of the present application;

Figure 5 is a schematic diagram of a directional heating assembly provided by the third embodiment of the present application;

Figure 6 is a cross-sectional view of a directional heating assembly provided by the third embodiment of the present application;

Figure 7 is a schematic diagram of a flow guide provided by the third embodiment of the present application;

Figure 8 is a schematic diagram of a heat exchange core provided by the third embodiment of the present application;

Figure 9 is an exploded schematic diagram of an aerosol generating device provided by the fourth embodiment of the present application;

Figure 10 is a three-dimensional schematic view of an air heat exchange and drainage device provided by the fourth embodiment of the present application;

Figure 11 is a schematic front view of an air heat exchange and drainage device provided by the fourth embodiment of the present application;

Figure 12 is a top view of an air heat exchange and drainage device provided by the fourth embodiment of the present application;

Figure 13 is a bottom view of an air heat exchange and drainage device provided by the fourth embodiment of the present application;

Figure 14 is an exploded schematic diagram of an aerosol generating device provided by the fifth embodiment of the present application;

Figure 15 is a schematic diagram of the combination of a heat exchange core and a flow guide provided by the fifth embodiment of the present application;

Figure 16 is a schematic diagram of the separation of a heat exchange core and a flow guide provided by the fifth embodiment of the present application;

Figure 17 is a schematic diagram of a heat exchange core provided by the fifth embodiment of the present application;

Figure 18 is a schematic diagram of a flow guide provided by the fifth embodiment of the present application;

Figure 19 is a partial schematic diagram of another electronic atomizer provided by this application;

Figure 20 is an exploded schematic diagram of another electronic atomizer provided by this application;

Figure 21 is a schematic cross-sectional view of a flow guide provided by the sixth embodiment of the present application;

Figure 22 is a perspective view of a heat exchange core and a flow guide provided by the seventh embodiment of the present application;

Figure 23 is a cross-sectional view of a heat exchange core and a flow guide provided by the seventh embodiment of the present application;

Figure 24 is a schematic diagram of a flow guide provided by the seventh embodiment of the present application;

Figure 25 is a schematic diagram of a heat exchange core provided in the seventh embodiment of the present application.

Embodiments of the invention

It should be understood that the terminology used and the specific structural and functional details disclosed here are only for describing specific embodiments and are representative. However, the present application can be specifically implemented in many alternative forms and should not be interpreted as merely are limited to the embodiments set forth herein.

In the description of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating relative importance or implicitly indicating the number of indicated technical features. Therefore, unless otherwise stated, features defined as “first” and “second” may explicitly or implicitly include one or more of the features; “plurality” means two or more. The term "comprises" and any variations thereof, means the non-exclusive inclusion of the possible presence or addition of one or more other features, integers, steps, operations, units, components and/or combinations thereof.

In addition, "center", "horizontal", "top", "bottom", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" The terms indicating the orientation or positional relationship, etc. are described based on the orientation or relative positional relationship shown in the drawings, and are only used to facilitate the simplified description of the present application, and do not indicate that the device or element referred to must have a specific orientation. , is constructed and operated in a specific orientation and therefore cannot be construed as a limitation on this application.

In addition, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection. , or it can be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

Figure 1 is a partial schematic diagram of an electronic atomizer provided by the first embodiment of the present application. As shown in Figure 1, the electronic atomizer 10 includes a heating element 100, a heating tube 200 and a directional heating assembly 300. The heating element 100 can be made of ceramic or other heating materials to generate heat; the heating tube 200 is connected to the heating element 100 to conduct the heat of the heating element 100, and a cigarette 400 is installed in the heating tube 200. , the cigarette 400 is fixed in the heating tube 200 and is in contact with the inner wall of the heating tube 200. The cigarette 400 is preheated through the heating tube 200 to speed up the smoking speed of the cigarette 400; The directional heating component 300 is arranged in the heating tube 200 and is located between the heating element 100 and the cigarette 400 to transfer the hot air flow generated by the heating element 100 to a local position of the cigarette 400 , the local position can be the center position of the cigarette 400, or the edge position of the cigarette 400, or the left area, right area, upper area or lower area of the cigarette 400, etc. The directional heating can be performed according to actual needs. Component 300 is adjusted. Of course, the electronic atomizer 10 also includes batteries and other structures, which are not listed here.

Compared with the heat-not-burn electronic atomizer 10 that directly faces the cigarette 400 with the heating element 100 so that the hot air flow passing through the heating element 100 directly heats the entire cigarette 400, the electronic atomizer 10 provided by the present application is A directional heating component 300 is added between the cigarette 400 and the heating element 100. The directional heating component 300 introduces the hot air flow to the local position of the cigarette 400, so that the hot air flow brings out the nicotine in the local position of the cigarette 400, thereby realizing the gradual release of nicotine. The process improves the balance of smoking of the cigarette 400, prolongs the use time of the cigarette 400, and enhances the user's experience.

Wherein, the directional heating component 300 can be an integrated structure, or can also adopt a split structure. When the directional heating component 300 adopts a split structure, as shown in Figures 2 and 5, the directional heating component 300 includes a The heat exchange core 310 and the air guide 320 are arranged between the air guide 320 and the heating element 100, and the heat exchange core 310 is provided with a plurality of air inlet holes distributed in an array. 311. One end of the air inlet hole 311 is opposite to the flow guide 320, and the other end is opposite to the heating element 100; the flow guide 320 is fixedly connected to the heat exchange core 310, and the flow guide 311 is fixedly connected to the heat exchange core 310. A cavity 330 is formed between the member 320 and the air inlet hole 311. An air outlet 321 is provided on the side of the guide member 320 facing the cigarette 400. The air outlet 321 faces a local position of the cigarette 400. , the air outlet 321, the cavity 330 and the air inlet 311 are connected.

The directional heating assembly 300 is made of materials that are resistant to high temperatures and have poor thermal conductivity. That is, the heat exchange core 310 and the flow guide 320 are both made of materials that are resistant to high temperatures and have poor thermal conductivity. This can prevent overheating inside the electronic atomizer 10. Secondly, the high temperature generated by the directional heating component 300 is prevented from accelerating the smoking efficiency of the cigarette 400 and weakening the user's experience. Specifically, the directional heating component 300 can be made of high-temperature silica gel, ceramic materials such as alumina and zirconia, or other inorganic materials such as glass and metal.

Moreover, splitting the directional heating assembly 300 into the heat exchange core 310 and the flow guide 320 makes it easier to install, and secondly, it is easier to replace the flow guide 320 as needed, so that the heat exchange core 310 and the flow guide 320 are produced. More combinations. Regarding the design of multiple air inlet holes 311 in the heat exchange core 310, compared to the solution of designing the heat exchange core 310 in an annular shape so that the air inlet hole 311 has only one large hole, the design of this application can avoid hot air flow. Concentration makes the hot air flow more uniform after passing through the heat exchange core 310. In addition, a space area is also provided between the air guide 320 and the heat exchange core 310, that is, a cavity 330 is formed between the air guide 320 and the air inlet 311, so that the hot air flow passing through the air inlet 311 can It is decelerated and gathered in the cavity 330, and then passes through the air outlet 321 evenly, thereby further improving the uniform heating of the cigarette 400.

For the specific structures of the flow guide 320 and the directional heating assembly 300, please refer to the following embodiments. It should be noted that although the application provides three specific designs, it does not represent the flow guide 320 and the directional heating in the application. Component 300 can only use these three methods.

Example 1:

As shown in Figure 2, as the first embodiment provided by the present application, in this embodiment, the air outlet 321 of the air guide 320 is composed of a plurality of air outlets 322, and the plurality of air outlets 322 are provided at each location. The edge of the flow guide 320 penetrates the flow guide 320 and is opposite to the edge of the cigarette 400 .

After the hot air flow passes through the heat exchange core 310, it enters the guide 320, and the hot air flow is diverted to the surroundings. The hot air flow first brings out part of the nicotine on the edge of the cigarette 400; the cigarette 400 is continuously baked, so that the gap between the shredded tobacco becomes larger. The airflow diffuses to the middle, and then continuously brings out the nicotine in the middle of the cigarette 400, thereby realizing the process of gradual release of nicotine and improving the balance of smoking of the cigarette 400. And because the cigarette 400 is inserted into the heat pipe, the heat pipe can preheat the cigarette 400 when heated. Both the hot air flow and the heat pipe have an edge effect on the cigarette 400. The combination of the two improves the effect on the cigarette 400. The effect of the edge makes it easier to bring out the nicotine from the edge of the cigarette 400.

In this embodiment, the heat exchange core 310 and the flow guide 320 are both cylindrical, and the side walls of the heat exchange core 310 and the flow guide 320 are higher than the middle area. In this way, the heat exchange core 310 and the flow guide 320 are both cylindrical. After the flow member 320 and the cigarette 400 are in contact, a cavity 330 is formed in the middle area of the heat exchange core 310 and the flow guide 320. A cavity can also be formed between the flow guide 320 and the cigarette 400 to improve air flow exchange and avoid The hot airflow is always concentrated on only one position of the cigarette 400, which leads to the problem of poor balance of puffing of the cigarette 400 in the later period. Moreover, the plurality of air outlets 322 are evenly distributed around the central axis of the air guide 320 so that the edge of the cigarette 400 is evenly affected by the hot air flow.

Further, as shown in FIG. 3 , a boss 323 is provided at the bottom of the flow guide 320 . The boss 323 is opposite to the heat exchange core 310 , and the boss 323 is disposed on the flow guide. The center of the member 320; the surface of the boss 323 is arc-shaped, and the height of the boss 323 gradually decreases from the top to the bottom of the boss 323. After the hot air flow passes through the plurality of air inlet holes 311 in the heat exchange core 310, the air inlet holes 311 located at the edge of the heat exchange core 310 correspond to the multiple air outlet holes 322 in the guide member 320, so that the hot air flow passes through the air inlet holes 311 located at the edge of the heat exchange core 310. The air inlet hole 311 on the edge of the heat exchange core 310 quickly passes through the air outlet hole 322. The hot air flow passing through the air inlet hole 311 in other areas of the heat exchange core 310 is blocked by the boss 323 and flows along the side of the boss 323. After being guided by the wall, it can also quickly pass through the air outlet hole 322 of the air guide 320 to avoid airflow collision and confusion.

Example 2:

As shown in Figure 4, as the second embodiment provided by this application, the difference from the first embodiment is that the design of the air outlet 321 in this embodiment is different. Compared with the edge of the flow guide 320 in the first embodiment, In terms of designing multiple air outlets 322 to form the air outlet 321 , in this embodiment, one air outlet 322 is provided in the center of the air guide 320 to form the air outlet 321 . Specifically, the air outlet 321 includes a main air outlet 324. The main air outlet 324 is disposed in the center of the air guide 320, penetrates the air guide 320, and is opposite to the center of the cigarette 400. .

In this embodiment, after the airflow passes through the heat exchange core 310, it enters the guide 320, and the airflow collects in the middle area of the cigarette 400; after the temperature rises, the hot airflow first brings out part of the nicotine in the middle of the cigarette 400; the cigarette 400 Continuous baking causes the gap between the cut tobacco to become larger, and the hot air flow spreads to the surroundings, and then continuously brings out the nicotine around the cigarette 400, thereby realizing the process of gradual release of nicotine and improving the balance of smoking of the cigarette 400. In addition, the heat conduction pipe heats the edge of the cigarette 400, and the hot air flow passing through the guide 320 acts on the center of the cigarette 400. The combination of the two can further improve the balance of smoking of the cigarette 400.

Embodiment three:

As shown in FIGS. 5 and 6 , as the third embodiment provided by the present application, compared to the second embodiment, the air outlet 321 in this embodiment not only includes the main air outlet 324 disposed in the central area of the flow guide 320 , also includes at least two secondary air outlets 325 arranged around the main air outlet 324. Similarly, the secondary air outlets 325 and the main air outlet 324 both penetrate the air guide 320, allowing airflow to pass through.

Based on the second embodiment, this embodiment further adds a secondary air outlet 325 to increase the circulation area of the air flow, so that more nicotine in the cigarette 400 is taken out by the hot air flow, and the electronic atomizer 10 is improved. The feeling of smoke. Moreover, the diameter of the main air outlet hole 324 is larger than the diameter of the secondary air outlet hole 325, so that more hot airflow is concentrated in the central area of the cigarette 400, thereby avoiding affecting the uniformity of smoking of the cigarette 400. The number of the secondary air outlets 325 is preferably three, and the three secondary air outlets 325 are arranged at equal intervals, so that the hot air flow passing through the secondary air outlets 325 acts evenly on the cigarette 400, and also avoids affecting the smoking of the cigarette 400. balance.

As shown in FIG. 5 , a guide post 326 is provided on the top of the guide part 320 . The guide post 326 is disposed on a side of the guide part 320 facing the cigarette 400 , and the guide post 326 326 is located in the center of the guide member 320 , and the main air outlet 324 passes through the guide column 326 . After the guide post 326 is installed, the guide post 326 is in contact with the cigarette 400, and the hot air flow through the main air outlet 324 directly acts on the center of the cigarette 400. Since the flow is guided between the secondary air outlet 325 and the cigarette 400, The pillars 326 are separated, and a space area is formed between the secondary air outlet hole 325 and the cigarette 400. When the hot air flow passes through the secondary air outlet hole 325, it is mixed in the space area and then acts evenly on the edge area of the cigarette 400, thereby improving the Uniformity of hot air flow diffusion.

As for the specific cooperation mode of the heat exchange core 310 and the flow guide 320, as shown in FIG. 7 and FIG. 8, the heat exchange core 310 includes a first body 312, a first outer wall 313 and at least two lugs 314. The first outer wall 313 is arranged around the first body 312, and the bottom and top of the first outer wall 313 protrude from the bottom and top of the first body 312 respectively, and the air inlet hole 311 passes through the first body 312. The first body 312, the lug 314 is disposed on the side of the first outer wall 313 facing the cigarette 400; the flow guide 320 includes a second body 327 and a second outer wall 328, the second outer wall 328 It is arranged around the second body 327, and the bottom and top of the second outer wall 328 protrude from the bottom and top of the second body 327 respectively. The main air outlet 324 and the secondary air outlet 325 respectively pass through The first body 312; the first outer wall 313 and the second outer wall 328 are in contact with each other; the second outer wall 328 is provided with at least two slots 329; the slots 329 are connected to the lugs 314 one by one. Correspondingly, the first body 312 and the second body 327 are opposite to each other, and the cavity 330 is formed between the first body 312 and the second body 327 .

In this embodiment, the first outer wall 313 of the heat exchange core 310 and the second outer wall 328 of the flow guide 320 are in contact with each other, preventing the hot air flow from flowing out through the gap between them, and improving the utilization rate of the hot air flow; in addition, , the heat exchange core 310 and the flow guide 320 are also limited by the snap connection between the lug 314 and the slot 329, firstly to facilitate the alignment installation, and secondly to avoid the relative position rotation of the heat exchange core 310 and the flow guide 320. Affects the effect of hot air flow.

As shown in Figure 9, this application discloses an aerosol generating device, which includes a heating tube 500 and an air heat exchange and drainage device 700. The heating tube 500 is used to place a cigarette 600, and the air heat exchange and drainage device 700 is fixed. In the heating tube 500, the gas entering the aerosol generating device 20 from the outside is heated and introduced into a local area of the cigarette 600; the air heat exchange and drainage device 700 is an integrally formed structure.

Compared with the solution of directly introducing the hot air flow to the entire bottom of the cigarette 600, this application uses the air heat exchange and drainage device 700 to first heat the air flow entering the inside of the product to form a hot air flow, and then introduce the hot air flow to a part of the cigarette 600. area, so that nicotine is released in a local area of the cigarette 600 instead of rapidly releasing nicotine in all areas of the cigarette 600 at the beginning, thereby realizing a gradual release process of nicotine and improving the uniformity of smoking of the cigarette 600; Moreover, this application designs the air heat exchange and drainage device 700 as an integrated structure to simultaneously realize heating and air guiding functions. Compared with the solution of dividing the structure into two structures to realize one function each, it can enhance stability and reduce assembly steps. Effect.

Specifically, as shown in Figure 10, the air heat exchange and drainage device 700 includes a heat exchange core 710, a flow guide 720 and a support 730. The heat exchange core 710 is provided with a plurality of air inlet holes 711. The heat core 710 heats the gas passing through the air inlet hole 711; the flow guide 720 is provided between the cigarette 600 and the heat exchange core 710, and the flow guide 720 is provided with an air outlet hole 721, so The air outlet 721 is opposite to a local area of the bottom of the cigarette 600; the support member 730 is disposed between the heat exchange core 710 and the flow guide 720, and the two ends of the support member 730 are respectively connected to the heat exchanger. The core 710 and the flow guide 720 are connected and separated from the heat exchange core 710 and the flow guide 720 .

Among them, the local position of the bottom of the cigarette 600 can be the center position of the cigarette 600, or the edge position of the cigarette 600, or the left area, right area, upper area or lower area of the cigarette 600, etc. After the air heat exchange and drainage device 700 is designed as an integrated structure of the heat exchange core 710, the flow guide 720 and the support member 730, the heat exchange core 710 is used to heat the air flow, and the flow guide 720 is used to guide the air flow to a part of the bottom of the cigarette 600. area, use the support 730 to connect the heat exchange core 710 and the flow guide 720, and form a space area between the heat exchange core 710 and the flow guide 720, so that the hot air flow passing through the air inlet 711 is carried out in this space area. Concentrate, and finally the concentrated airflow acts on the cigarette 600 through the air outlet 721 of the flow guide to heat the cigarette 600 and increase the balance of the baking of the cigarette 600.

Moreover, since the heat exchange core 710 is made of thermally conductive material, after the heat exchange core 710, the flow guide 720 and the support member 730 are formed into an integrated structure, the flow guide 720 and the support member 730 can also conduct heat, preferably air heat exchange flow. The device 700 is made of metal material. At this time, the heat exchange core 710 has a better heat conduction effect and can heat the air entering the product faster. The flow guide 720 can also generate heat quickly. The air outlet 721 in the flow guide 720 can heat the device 700 . The air flow is further heated, so that the hot air flow maintains a high temperature state, thereby improving the effect on the cigarette 600.

This application provides the following fourth embodiment to specifically describe the edge area solution of the heated cigarette 600:

Figure 10 is a three-dimensional schematic view of an air heat exchange and drainage device provided by the fourth embodiment of the present application. Figure 11 is a front schematic view of an air heat exchange and drainage device provided by the fourth embodiment of the present application. Combined with Figures 2 and 3 As shown in the fourth embodiment of the present application, the air heat exchange and drainage device 700 heats the airflow entering the product, and introduces the heated airflow to the edge area of the cigarette 600. Correspondingly, the support member 730 is cylindrical, And located in the middle area of the air heat exchange and drainage device 700, the central axis of the support member 730 coincides with the central axis of the air heat exchange and drainage device 700; the air outlet 721 is provided on the edge of the flow guide 720 , away from the support member 730 .

Specifically, the flow guide 720 includes a bottom plate 722, a fixing ring 723 and a top block 724. The air outlet 721 is provided on the bottom plate 722. The fixing ring 723 is set around the bottom plate 722 and along the direction facing the smoke. In the direction of the cigarette holder 600, the fixing ring 723 protrudes from the bottom plate 722; the top plate is disposed on the side of the bottom plate 722 facing the cigarette holder 600, located in the central area of the bottom plate 722, and is in contact with the cigarette holder 600. The top block 724 is in contact with the air outlet hole 721 .

After the top block 724 is added to the flow guide 720, the cigarette 600 is inserted into the heating tube 500. At this time, the fixing ring 723 can also fix the bottom of the cigarette 600, improving the stability of the cigarette 600; and the cigarette 600 is also connected to the top block. 724 abuts and blocks the middle area of the cigarette 600, thereby preventing the hot air flow from acting on the middle area of the cigarette 600; and causing the hot air flow to be more concentrated on the edge of the cigarette 600, further slowing down the release of nicotine.

Furthermore, the top block 724 is also designed to be arc-shaped and protrudes toward the cigarette 600, that is, the center of the top block 724 is away from the cigarette 600; the top block 724 has an axially symmetrical structure, and the top block 724 is axially symmetrical. The center of the circle of the block 724 is located on the central axis of the bottom plate 722 so that the hot airflow acts evenly on the entire edge of the cigarette 600 . At the same time, the arc-shaped top block 724 also prevents the bottom of the cigarette 600 from being completely sealed. When the hot air flow passes through the air outlet 721, it can also spread to the middle area. The hot air flow can slowly heat the central part of the cigarette 600, thus achieving the effect of Preheating effect: when the cigarette 600 is heated for a period of time, nicotine in the center area of the cigarette 600 begins to be released. At this time, the nicotine release effect in the center area of the cigarette 600 is better, which can improve the user's smoking effect.

Moreover, as shown in Figure 12, Figure 12 is a top view of an air heat exchange and drainage device provided by the fourth embodiment of the present application. The edge of the top block 724 can also be tangent to the edge of the air outlet hole 721, The edge of the air outlet hole 721 is tangent to the inner edge of the fixing ring 723 to fully utilize the flow guide and prevent hot airflow from gathering at the interface between the fixing ring 723 and the bottom plate 722 .

In addition, as shown in Figure 13, Figure 13 is a bottom view of an air heat exchange and drainage device provided by the fourth embodiment of the present application. Regarding the design of the air inlet hole 711 in the heat exchange core 710, this application will A plurality of air inlet holes 711 in the core 710 are distributed in an array around the central axis of the heat exchange core 710, and the air inlet holes 711 are spaced apart from the support member 730 to prevent the heat exchange core 710 at the bottom of the support column from being exposed. The opening causes the hot air flow to accumulate and cannot act on the cigarette 600, resulting in a waste of hot air flow.

In the fourth embodiment of the present application, the radius of the support member 730 does not exceed one third of the radius of the heat exchange core 710 to avoid the cross-sectional area of the support member 730 being too large, causing the air inlet 711 and the outlet The arrangement area of the air holes 721 is reduced; the volume of the support member 730 can also be reduced to reduce the heat transfer of the heat exchange core 710, so as to avoid the rapid release of nicotine in the cigarette 600 after the top block 724 is attached to the cigarette 600.

When the central area of the cigarette 600 is heated, the support member 730 is annular and is located at the edge area of the air heat exchange and drainage device 700. The central axis of the support member 730 is in contact with the air heat exchange and drainage device. The central axes of the device 700 coincide with each other; the air outlet 721 is provided in the middle area of the flow guide 720 and is spaced apart from the support member 730 . The hot air flow can be concentrated in the central area of the flow guide 720 through the air outlet 721, so that the aerosol generating device 20 first quickly releases the nicotine in the central area of the cigarette 600, and then releases the nicotine on the edge of the cigarette 600, so as to achieve the gradual release of nicotine. The effect can also improve the uniformity of smoke emission.

As shown in Figure 14, Figure 14 is an exploded schematic diagram of an aerosol generating device 30 provided in the fifth embodiment of the present application. The present application discloses an aerosol generating device 30, which includes a heating tube 800, a heat exchange core 900 and a The flow guide 1000, the heating tube 800 is used to place the cigarette 1100; the heat exchange core 900 is provided with a plurality of air inlet holes 910, the air inlet holes 910 are connected to the outside world, and the heat exchange core 900 is provided with a plurality of air inlet holes 910. The external gas entering the air inlet 910 is heated, and the heat exchange core 900 is connected to the heating pipe 800. The heating pipe 800 generates heat and transfers the heat to the heat exchange core 900, causing the heat exchange core 900 to generate heat; The flow guide 1000 is provided with an air inlet channel 1001 and an air outlet hole 1002. The air inlet channel 1001 is connected to the outside world and introduces the outside air flow into the first area of the cigarette 1100; the air outlet hole 1002 is connected to the air outlet hole 1002. The air inlet holes 910 of the heat exchange core 900 are connected, and the air flow heated by the heat exchange core 900 is introduced into the second area of the cigarette 1100. The first area and the second area do not overlap. The area and the second area are both local areas of the cigarette 1100.

Compared with the solution of introducing the hot air flow heated by the heat exchange core 900 into the entire area of the cigarette 1100, in this application, in addition to using the air outlet 1002 in the flow guide 1000 to introduce the hot air flow into the second area of the cigarette 1100, The air inlet channel 1001 in the flow guide 1000 is also used to directly introduce the cold air flow from the outside into the first area of the cigarette 1100. The first area and the second area are both local areas of the cigarette 1100. Since the outside temperature is low, The cigarette 1100 cannot be baked. Compared with the hot air flow heated by the heat exchange core 900, the temperature of the outside air flow is lower, so it is called cold air flow. This does not mean that the outside air flow needs to be cooled. The hot air flow acts on the cigarette 1100, causing the cigarette 1100 to be baked, resulting in the release of nicotine. The cold air flow acts on the other part of the cigarette 1100, which can neutralize the hot air flow and prevent the smoke from burning your mouth due to excessive smoke temperature. ; At the same time, it protects this part of the cigarette 1100 from being easily baked and achieves the effect of slow release of nicotine, thereby avoiding the problem of continuous decline in the smoking taste of the cigarette 1100 and poor puff balance.

Specifically, as shown in Figures 15 and 16, they are respectively schematic diagrams of the heat exchange core and the flow guide provided by the fifth embodiment of the present application when they are combined and separated. The flow guide 1000 includes a bottom plate 1003, a snap ring 1004 and a guide. Air column 1005, the bottom plate 1003 is a circular plate-like structure, the air outlet 1002 is provided on the bottom plate 1003; the snap ring 1004 is provided around the bottom plate 1003, and the air guide column 1005 penetrates the The bottom plate 1003 is spaced apart from the air outlet hole 1002, and the air guide column 1005 is hollow inside to form the air inlet channel 1001; the heat exchange core 900 is provided with a hollow channel inside, and the air inlet hole 910 is connected to the air inlet channel 1001. The hollow channel is hollow, and the air guide column 1005 penetrates the hollow channel.

The air guide column 1005 penetrates the heat exchange core 900, and the air inlet channel 1001 is set inside the air guide column 1005. In this way, after the outside air enters the product, it enters the air inlet hole 910 and the air inlet of the heat exchange core 900 from one direction. channel 1001, so there is no need to set up other additional air holes to introduce outside air into the air inlet channel 1001, which greatly simplifies the structural design and reduces the manufacturing difficulty; and after the air guide column 1005 penetrates the heat exchange core 900, it can The stability of the heat exchange core 900 and the flow guide 1000 is improved, and installation and alignment can be facilitated.

Of course, the air guide column 1005 can also adopt other designs, such as not penetrating the heat exchange core 900 but directly penetrating the side wall of the heating pipe 800, or changing the shape of the heat exchange core 900 and designing the heat exchange core 900 into a semi-cylindrical or other shape. Shape, there is a gap between the heat pipe 800 and the air guide column 1005 to follow this gap design, these are feasible.

As for one end of the air guide column 1005, after the air guide column 1005 penetrates the heat exchange core 900, the end of the air guide column 1005 also protrudes from the side of the heat exchange core 900 away from the flow guide 1000. This ensures that outside air can enter the air inlet channel 1001 first, and prevents the air flow heated by the heat exchange core 900 from entering the air inlet channel 1001 and affecting the balance of suction.

Moreover, the diameter of the hollow channel is larger than the diameter of the air guide column 1005. The air guide column 1005 is not in contact with the heat exchange core 900 to prevent the high temperature generated by the heat exchange core 900 from affecting the air guide column 1005 and affecting the temperature of the cold air. .

The other end of the air guide column 1005, that is, the end facing the cigarette 1100, protrudes from the bottom plate 1003 and is in contact with the cigarette 1100. In this way, the external cold air flow enters the air inlet channel 1001 and directly acts on the cigarette 1100 to avoid mixing with the hot air, lowering the temperature of the hot air, making the heating effect worse, or causing the hot air to form water vapor when it is cooled, causing the cigarette 1100 to become damp. Not easy to smoke.

In the fifth embodiment of the present application, the flow guide 1000 is made of heat-resistant material to prevent the high temperature generated by the heating tube 800 and the heat exchange core 900 from acting on the flow guide, causing the flow guide 1000 to generate high temperature, thereby speeding up the smoking of the cigarette 1100. The release of nicotine makes the smoking taste of cigarette 1100 deteriorate.

Regarding the design of the air guide column 1005, the fifth embodiment of the present application provides two specific implementation modes. The first implementation mode is that there is only one air guide column 1005 in the flow guide 1000, and the air guide column 1005 is located on the At the center of the flow guide 1000, the central axis of the air guide column 1005 coincides with the central axis of the flow guide; correspondingly, the flow guide 1000 is provided with a plurality of air outlets 1002, and the plurality of air outlets 1002 surround The air guide column 1005 is provided, and the hollow channel in the heat exchange core 900 is provided correspondingly.

At this time, the cold air flow acts on the central area of the cigarette 1100 through the air inlet channel 1001, and the hot air flow acts on the edge area of the cigarette 1100 through the air outlet 1002. The edge of the cigarette 1100 is affected by the dual effects of the hot air flow and the heating pipe 800. Nicotine begins to be released, and then the hot airflow gradually spreads toward the center of the cigarette 1100, bringing out the nicotine in the center area of the cigarette 1100, so that the nicotine is slowly released to improve the smoking taste and uniformity of the cigarette 1100.

The second embodiment is that the flow guide 1000 has multiple air guide columns 1005 and one air outlet hole 1002. Correspondingly, the air outlet hole 1002 is located in the center of the flow guide 1000, and the multiple air guide columns 1005 Arranged around the air outlet hole 1002 , a plurality of hollow channels in the heat exchange core 900 are arranged in one-to-one correspondence with a plurality of air guide pillars 1005 . At this time, the cold air flow acts on the edge area of the cigarette 1100 through the air inlet channel 1001, and the hot air flow acts on the central area of the cigarette 1100 through the air outlet hole 1002. The central area of the cigarette 1100 is affected by the hot air flow and begins to release nicotine. , and then the hot airflow gradually spreads toward the edge of the cigarette 1100, bringing out the nicotine in the edge area of the cigarette 1100, causing the nicotine to be released slowly, which can also improve the smoking taste and uniformity of smoking of the cigarette 1100. Of course, the position of the air guide column 1005 can also be designed in other ways, and can be adjusted according to actual needs.

As shown in Figures 17 and 18, Figure 17 is a schematic diagram of a heat exchange core provided by the fifth embodiment of the present application. Figure 18 is a schematic diagram of a flow guide provided by the fifth embodiment of the present application. The heat exchanger The core 900 includes a body 920, an outer wall 930 and a clip 940. The body 920 is a cylinder, the hollow channel and the air inlet hole 910 are provided on the body 920, the outer wall 930 is provided around the body 920, and The outer wall 930 protrudes from the body 920 on one side of the outer wall 930 facing the flow guide 1000 , and the clip 940 is provided on the side of the outer wall 930 facing the flow guide 1000 ; the bottom plate 1003 faces the heat exchanger One side of the core 900 protrudes from the snap ring 1004, and the edge of the bottom plate 1003 is in contact with the inner edge of the outer wall 930. The snap ring 1004 is provided with a bayonet 1006, and the bayonet 1006 is connected to the inner edge of the outer wall 930. The card strip 940 is correspondingly matched.

Compared with the solution of directly bonding the heat exchange core 900 and the flow guide 1000, the fifth embodiment of the present application uses a snap connection method to connect the heat exchange core 900 and the flow guide 1000 together, which can improve the connection between the two. The stability of the hot air can also form a cavity between the two. After the hot air enters the cavity, it can be buffered and then pass through the air outlet 1002 evenly, thereby improving the uniformity of heating.

Furthermore, the heat exchange core 900 further includes a limiting block 950 , which is disposed on a side of the outer wall 930 away from the flow guide 1000 and is disposed around the outer wall 930 . When the heat exchange core 900 is installed, the limiting block 950 can contact the heating pipe 800 to prevent the heat exchange core 900 and the flow guide 1000 from falling into the heating pipe 800 and affecting the installation efficiency.

Figure 19 is a partial schematic diagram of another electronic atomizer provided by this application. Figure 20 is an exploded schematic diagram of another electronic atomizer provided by this application. As shown in Figures 19 and 20, the electronic atomizer The device 40 includes a heating tube 1200, a heat exchange core 1300 and a flow guide 1400. A cigarette 1500 is provided in the heating tube 1200. The cigarette 1500 is fixed in the heating tube 1200 and connected with the heating tube 1200. The inner walls of the heat exchange core 1300 are attached to each other; the heat exchange core 1300 is fixed at one end of the heating tube 1200. The heat exchange core 1300 is provided with a plurality of air inlet holes 1301 distributed in an array. The gas in the electronic atomizer 40 is heated; the flow guide 1400 is provided between the heat exchange core 1300 and the cigarette 1500, the flow guide 1400 is fixedly connected to the heat exchange core 1300, and A cavity 1600 is formed between the flow guide 1400 and the heat exchange core 1300. The flow guide 1400 is provided with an air outlet 1401 on a side facing the cigarette 1500. The air outlet 1401 faces the cigarette. At a local position of 1500, the air outlet 1401, the cavity 1600 and the air inlet 1301 are connected.

After the external airflow enters the electronic atomizer 40 and passes through the air inlet 1301 of the heat exchange core 1300, the heat exchange core 1300 heats the airflow to form a hot airflow, and then the guide 1400 guides the hot airflow to a local position at the bottom of the cigarette 1500. , the local position can be the center position of the cigarette 1500, or it can be the edge position of the cigarette 1500, or it can be the left area, right area, upper area or lower area of the cigarette 1500, etc. The flow diversion can be based on actual needs. Part 1400 for adjustment. Of course, the electronic atomizer 40 also includes batteries and other structures, which are not listed here.

Compared with the heat-not-burn electronic atomizer 40 that directly heats the entire bottom of the cigarette 1500 with the hot air flow, the electronic atomizer 40 provided by this application introduces the hot air flow to the bottom of the cigarette 1500 through the guide 1400. The local position allows the hot air flow to bring out the nicotine in the local position of the cigarette 1500, thereby realizing the gradual release process of nicotine, improving the balance of smoking of the cigarette 1500, and extending the use time of the cigarette 1500, thereby enhancing the user's experience.

As shown in Figure 20, the heat exchange core 1300 is connected to the heating pipe 1200, and is heated by the heating pipe 1200, or by other heating elements provided at the bottom of the heat exchange core 1300; the flow guide 1400 is made of high temperature resistant Moreover, it is made of materials with poor thermal conductivity to avoid overheating inside the electronic atomizer 40 and to prevent the high temperature generated by the flow guide 1400 from accelerating the smoking efficiency of the cigarette 1500 and weakening the user's experience. Specifically, the flow guide 1400 can be made of high-temperature silica gel, ceramic materials such as alumina and zirconia, or other inorganic materials such as glass and metal.

Moreover, the heat exchange core 1300 and the flow guide 1400 are designed as separate structures. Firstly, it is more convenient to install, and secondly, it is easier to replace the flow guide 1400 as needed, so that the heat exchange core 1300 and the flow guide 1400 produce more combination form. Regarding the design of multiple air inlet holes 1301 in the heat exchange core 1300, the apertures of the air inlet holes 1301 are smaller and larger in number, which is beneficial to improving the uniformity of the air intake and improving the thermal conductivity effect of the air inlet, so that the airflow enters the air inlet. The pores 1301 can then be heated quickly. In addition, a space area is also provided between the air guide 1400 and the heat exchange core 1300, that is, a cavity 1600 is formed between the air guide 1400 and the air inlet 1301, so that the air flow passing through the air inlet 1301 can be decelerated. And gather in the cavity 1600, and then pass through the air outlet 1401 evenly, thereby further improving the uniform heating of the cigarette 1500.

For the specific structures of the flow guide 1400 and the heat exchange core 1300, please refer to the following embodiments. It should be noted that although two specific designs are provided below, it does not mean that the flow guide 1400 and the heat exchange core 1300 can only be used. these ways.

Embodiment 6:

As shown in Figure 20, as a sixth embodiment provided by the present application, in the sixth embodiment, the air outlet 1401 of the air guide 1400 is composed of a plurality of air outlets 1402, and the plurality of air outlets 1402 are provided in The edge of the flow guide 1400 penetrates the flow guide 1400 and is opposite to the edge of the cigarette 1500 .

After passing through the guide 1400, the hot air flow is diverted to the edge of the cigarette 1500. The hot air flow first brings out part of the nicotine on the edge of the cigarette 1500; the cigarette 1500 is continuously baked, making the gap between the cut tobacco larger, and the air flow spreads to the middle. , and then continuously bring out the nicotine in the middle of the cigarette 1500, thereby realizing the process of gradual release of nicotine and improving the balance of smoking of the cigarette 1500. And because the cigarette 1500 is inserted into the heating tube 1200, the heating tube 1200 can preheat the cigarette 1500 when heated. Both the hot air flow and the heating tube 1200 have an edge effect on the cigarette 1500. The combination of the two improves the efficiency of the cigarette 1500. The effect on the edge of the cigarette 1500 makes it easier for the nicotine to be taken out of the edge of the cigarette 1500.

In the sixth embodiment, the heat exchange core 1300 and the flow guide 1400 are both cylindrical, and the side walls of the heat exchange core 1300 and the flow guide 1400 are higher than the middle area, so that the heat exchange core 1300, After the flow guide 1400 and the cigarette 1500 are in contact, a cavity 1600 is formed in the middle area between the heat exchange core 1300 and the flow guide 1400. The cavity 1600 can also be formed between the flow guide 1400 and the cigarette 1500 to improve air flow exchange. At the same time, it is avoided that the hot air flow is always concentrated in only one position of the cigarette 1500, which will lead to the problem of poor balance of the smoking of the cigarette 1500 in the later period. Moreover, the plurality of air outlets 1402 are evenly distributed around the central axis of the air guide 1400, so that the edge of the cigarette 1500 is evenly affected by the hot air flow.

Further, as shown in Figure 21, the flow guide 1400 includes a bottom plate 1403 and a side plate 1404. The bottom plate 1403 is cylindrical, the side plate 1404 is an annular shape, and the side plate 1404 surrounds the bottom plate. 1403 is provided and vertically connected to the bottom plate 1403. Both ends of the side plate 1404 protrude from the bottom plate 1403; the bottom plate 1403 is provided with a boss 1405 on one side facing the heat exchange core 1300. The boss 1405 1405 is arranged opposite to the heat exchange core 1300, and the boss 1405 is set at the center of the flow guide 1400; the surface of the boss 1405 is arc-shaped, and is along the center to the edge of the boss 1405 , the height of the boss 1405 gradually decreases.

After the hot air flow passes through the multiple air inlet holes 1301 in the heat exchange core 1300, the air inlet holes 1301 located at the edge of the heat exchange core 1300 correspond to the multiple air outlet holes 1402 in the guide member 1400, so that the hot air flow passes through the multiple air inlet holes 1301 located at the edge of the heat exchange core 1300. After the air inlet hole 1301 on the edge of the heat exchange core 1300, it quickly passes through the air outlet hole 1402. The air flow passing through the air inlet holes 1301 in other areas of the heat exchange core 1300 is blocked by the boss 1405 and arcs along the boss 1405. After being guided by the shaped outer wall 1303, it can also quickly pass through the air outlet hole 1402 of the air guide 1400 to avoid airflow collision and disorder.

Moreover, the height of the boss 1405 is less than the distance between the end of the side plate 1404 facing the heat exchange core 1300 and the bottom plate 1403 to prevent the boss 1405 from blocking the hot air flow and causing the hot air flow to backflow, resulting in Disturbed airflow.

In the sixth embodiment, the boss 1405 is a centrally symmetrical structure. The central axis of the boss 1405 coincides with the central axis of the guide 1400. The height of the boss 1405 gradually decreases from the center to the edge of the boss 1405; it can be increased. The area of the boss 1405 is large, so that the edge of the boss 1405 extends to the side plate 1404. At this time, the air outlet 1402 overlaps with the edge of the boss 1405, and the air outlet 1402 penetrates the edge of the boss 1405, so that the shape of the bottom of the air outlet 1402 is Curved, this design makes it easier for hot air to be introduced into the air outlet 1402.

On the other side of the bottom plate 1403, the side of the bottom plate 1403 facing the cigarette 1500 is set as a flat surface, and the flat surface can be attached to the cigarette 1500, so that the air outlet 1402 directly acts on the edge of the cigarette 1500 without the need for After being buffered by a spatial area, the hot air flow is more concentrated on the edge of the cigarette 1500, further improving the balance of nicotine content when the user smokes.

Embodiment 7:

As shown in Figures 22 to 25, as the seventh embodiment provided by this application, the difference from the sixth embodiment is that in the sixth embodiment, the heat exchange core 1300 and the flow guide 1400 adopt a regular and simple structural design. They are connected by bonding. In the seventh embodiment, the heat exchange core 1300 and the flow guide 1400 adopt different designs, and the heat exchange core 1300 and the flow guide 1400 are connected by snapping.

Specifically, the heat exchange core 1300 includes a main body 1302, an outer wall 1303 and at least two clips 1304. The outer wall 1303 is arranged around the main body 1302, and the bottom and top of the outer wall 1303 protrude from the main body respectively. The air inlet hole 1301 penetrates the main body 1302, and the clip 1304 is provided on the side of the outer wall 1303 facing the cigarette 1500; the flow guide 1400 includes a bottom plate 1403 and a side plate. 1404. The bottom plate 1403 is cylindrical, and the side plates 1404 are annular. The side plates 1404 are arranged around the bottom plate 1403 and are vertically connected to the bottom plate 1403. Both ends of the side plates 1404 protrude. On the bottom plate 1403; the outer wall 1303 and the side plate 1404 are in contact, and the side plate 1404 is provided with at least two slots 1406, and the slots 1406 and the clamping strips 1304 are connected in a one-to-one correspondence; so The bottom plate 1403 and the main body 1302 are opposite, and the cavity 1600 is formed between the bottom plate 1403 and the main body 1302 .

In the seventh embodiment, the heat exchange core 1300 and the flow guide 1400 are fixed by snapping. The outer wall 1303 of the heat exchange core 1300 and the side plate 1404 of the flow guide 1400 are in contact with each other to prevent the hot air flow from passing through the two sides. The gap between them flows out to improve the utilization rate of hot air flow; in addition, the heat exchange core 1300 and the flow guide 1400 are also limited by clamping strips 1304 and clamping slots 1406, firstly to facilitate alignment and installation, and secondly to avoid The relative position rotation of the heat exchange core 1300 and the flow guide 1400 affects the effect of the hot air flow.

In addition, the heat exchange core 1300 also includes a limiting portion 1305. The limiting portion 1305 is arranged around the outer wall 1303 and is located at an end of the outer wall 1303 away from the flow guide 1400, and is in contact with the heating pipe. The ends of 1200 are abutted. Since the heat exchange core 1300 only has a limited portion 1305 at one end, when installing the heat exchange core 1300 and the flow guide 1400, it is prevented from being installed upside down; and when the heat exchange core 1300 is fixed, it can also prevent the heat exchange core 1300 from falling to the hair. Inside the heat pipe 1200, the installation efficiency is reduced.

The above content is a further detailed description of the present application in combination with specific optional implementation modes, and it cannot be concluded that the specific implementation of the present application is limited to these descriptions. For those of ordinary skill in the technical field to which this application belongs, several simple deductions or substitutions can be made without departing from the concept of this application, which should be regarded as falling within the protection scope of this application.

Claims

An electronic atomizer, characterized by including:

Heating element, generates heat;

A heating tube is connected to the heating element to conduct the heat of the heating element, and a cigarette is provided in the heating tube, and the cigarette is fixed in the heating tube and is in contact with the inner wall of the heating tube;

A directional heating component is arranged in the heating tube and is located between the heating element and the cigarette, and transfers the hot air flow generated by the heating element to a local position of the cigarette.
as claimed 1 The electronic atomizer is characterized in that the directional heating assembly includes a heat exchange core and a flow guide, the heat exchange core is arranged between the flow guide and the heating element, and the heat exchanger The heat core is provided with a plurality of air inlet holes distributed in an array, one end of the air inlet hole is opposite to the flow guide, and the other end is opposite to the heating element;

The flow guide is fixedly connected to the heat exchange core, and a cavity is formed between the flow guide and the air inlet. An air outlet is provided on a side of the flow guide facing the cigarette, so The air outlet faces a local position of the cigarette, and the air outlet, the cavity and the air inlet are connected.
as claimed 2 The electronic atomizer is characterized in that the air outlet includes a plurality of air outlets, and the plurality of air outlets are arranged on the edge of the flow guide member, penetrate the flow guide member, and are connected with the smoke The edges of the branches are set opposite each other.
as claimed 3 The electronic atomizer is characterized in that the heat exchange core and the flow guide are both cylindrical, and a plurality of the air outlets are evenly distributed around the central axis of the flow guide; the flow guide The bottom of the part is provided with a boss, the boss is arranged opposite to the heat exchange core, and the boss is set in the center of the flow guide member; the surface of the boss is arc-shaped, and along the From the top of the boss to the bottom, the height of the boss gradually decreases.
as claimed 2 The electronic atomizer is characterized in that the air outlet includes a main air outlet and at least two secondary air outlets, and the main air outlet is arranged in the center of the flow guide member and penetrates the flow guide member, and is arranged opposite to the center of the cigarette; the secondary air outlet penetrates the flow guide; the aperture of the secondary air outlet is smaller than the aperture of the main air outlet, and at least two of the secondary air outlets surround the The main air outlets are arranged evenly.
as claimed 5 The electronic atomizer is characterized in that a flow guide column is provided on the top of the flow guide member, and the flow guide column is arranged on a side of the flow guide member facing the cigarette, and the flow guide column The column is located at the center of the flow guide member, and the main air outlet penetrates the flow guide column.
An aerosol generating device, characterized in that it includes:

Heating tube, used to place cigarettes;

An air heat exchange and drainage device, fixed in the heating tube, is used to heat the gas entering the aerosol generating device from the outside and introduce it into a local area of the cigarette;

Wherein, the air heat exchange and drainage device is an integrally formed structure.
as claimed 7 The aerosol generating device is characterized in that the air heat exchange and drainage device includes:

A heat exchange core, the heat exchange core is provided with a plurality of air inlet holes, and the heat exchange core heats the gas passing through the air inlet holes;

A flow guide is provided between the cigarette and the heat exchange core. The flow guide is provided with an air outlet, and the air outlet is opposite to a local area of the bottom of the cigarette;

A support member is provided between the heat exchange core and the flow guide. Both ends of the support member are connected to the heat exchange core and the flow guide respectively, and separate the heat exchange core and the flow guide.
as claimed 8 The aerosol generating device is characterized in that the support member is cylindrical and is located in the middle area of the air heat exchange and drainage device, and the central axis of the support member is consistent with the center of the air heat exchange and drainage device. axes coincide;

The air outlet is provided at the edge of the flow guide, away from the support member.
as claimed 9 The aerosol generating device is characterized in that the flow guide includes a bottom plate, a fixed ring and a top block, the air outlet is provided on the bottom plate, the fixed ring is provided around the bottom plate and is arranged along the direction of the bottom plate. In the direction of the cigarette, the fixing ring protrudes from the bottom plate; the top plate is disposed on the side of the bottom plate facing the cigarette, located in the central area of the bottom plate, abutting against the cigarette, and the top plate The top block is spaced from the air outlet.
as claimed 8 The aerosol generating device is characterized in that the support member is annular and is located at the edge area of the air heat exchange and drainage device, and the central axis of the support member is in line with the center axis of the air heat exchange and drainage device. The central axes coincide;

The air outlet is provided in the middle area of the flow guide, away from the support member.
An aerosol generating device, characterized in that it includes:

Heating tube, used to place cigarettes;

A heat exchange core, the heat exchange core is provided with a plurality of air inlet holes, the air inlet holes are connected to the outside world, and the heat exchange core heats the gas entering the air inlet hole from the outside world; and

A flow guide. The flow guide is provided with an air inlet channel and an air outlet hole. The air inlet channel is connected to the outside world and introduces the outside air flow into the first area of the cigarette. The air outlet hole is connected to the heat exchange core. The air inlets are connected to guide the air flow heated by the heat exchange core to the second area of the cigarette, and the first area and the second area do not overlap.
as claimed 12 The aerosol generating device is characterized in that the flow guide includes a bottom plate, a snap ring and an air guide column, the bottom plate is a circular plate-like structure, and the air outlet is provided on the bottom plate; A snap ring is arranged around the bottom plate, the air guide column penetrates the bottom plate and is away from the air outlet, and the air guide column is hollow inside to form the air inlet channel;

A hollow channel is provided inside the heat exchange core, the air inlet hole and the hollow channel are spaced apart, and the air guide column penetrates the hollow channel.
as claimed 13 The aerosol generating device is characterized in that the end of the air guide column protrudes from the side of the heat exchange core away from the flow guide.
as claimed 13 The aerosol generating device is characterized in that there is only one air guide column in the flow guide, the air guide column is located in the center of the flow guide, and the central axis of the air guide column is in line with the center axis of the flow guide. The central axes coincide;

The flow guide is provided with a plurality of air outlets, and the plurality of air outlets are arranged around the air guide column;

Alternatively, the flow guide has a plurality of air guide columns and an air outlet hole, the air outlet hole is located in the center of the flow guide, and the plurality of air guide columns are arranged around the air outlet hole.
as claimed 13 The aerosol generating device is characterized in that one end of the air guide column protrudes from the bottom plate toward the cigarette and is in contact with the cigarette.
An electronic atomizer, characterized in that it includes a heating tube, a heat exchange core and a flow guide. A cigarette is provided in the heating tube. The cigarette is fixed in the heating tube and connected with the heating tube. The inner walls are close to each other; the heat exchange core is fixed at one end of the heating tube, and the heat exchange core is provided with a plurality of air inlet holes distributed in an array. Gas heating; the flow guide is arranged between the heat exchange core and the cigarette, the flow guide is fixedly connected to the heat exchange core, and the flow guide and the heat exchange core are A cavity is formed between the guide members. An air outlet is provided on a side of the guide member facing the cigarette. The air outlet faces a local position of the cigarette. The air outlet, the cavity and the air inlet are connected.
as claimed 17 The electronic atomizer is characterized in that the air outlet includes a plurality of air outlets, and the plurality of air outlets are arranged on the edge of the flow guide member, penetrate the flow guide member, and are connected with the smoke The edges of the branches are set opposite each other.
as claimed 18 The electronic atomizer is characterized in that the heat exchange core and the flow guide are both cylindrical, and a plurality of the air outlets are evenly distributed around the central axis of the flow guide;

The flow guide includes a bottom plate and a side plate. The bottom plate is cylindrical and the side plate is annular. The side plate is arranged around the bottom plate and is vertically connected to the bottom plate. The side plate is Both ends protrude from the bottom plate; the bottom plate is provided with a boss on one side facing the heat exchange core, the boss is set opposite to the heat exchange core, and the boss is set on the flow guide. center;

The surface of the boss is arc-shaped, and the height of the boss gradually decreases from the center to the edge of the boss.
as claimed 19 The electronic atomizer is characterized in that the height of the boss is smaller than the distance between the end of the side plate facing the heat exchange core and the bottom plate.
as claimed 19 The electronic atomizer is characterized in that the air outlet overlaps the edge of the boss and penetrates the edge of the boss.