An aerosol-generating device and an aerosol-generating system

Abstract

This disclosure relates to the field of aerosol generation product heating technology, and more particularly to an aerosol generation device and an aerosol generation system. The aerosol generation device includes a housing, a heating component, an electrical control component, and an air inlet. This aerosol generation device utilizes the heat emitted by the electrical control component to preheat the airflow, causing the airflow to first flow towards the electrical control component. This achieves the recovery and utilization of waste heat from the electrical control component, improving the heating efficiency of the aerosol generation device. Simultaneously, the continuous blowing and cooling of the electrical control component by the airflow effectively reduces its operating temperature, helping to extend its service life and improve the overall operational stability and reliability of the aerosol generation device. The aerosol generation system includes the aerosol generation product and the aforementioned aerosol generation device, which effectively recovers and utilizes waste heat from the electrical control component, improving the overall energy efficiency of the aerosol generation system.

Description

Technical Field

[0001] This disclosure relates to the field of heating technology for aerosol-generated products, and more particularly to an aerosol-generating apparatus and an aerosol-generating system. Background Technology

[0002] Electrically heated aerosol generators have gained widespread attention and application as a substitute for traditional cigarettes. They can bake out the effective components such as nicotine in the aerosol generating matrix through electric heating. Unlike the traditional combustion reaction, the electrically heated aerosol generator can effectively reduce the release of harmful substances such as tar.

[0003] However, during the use of aerosol generating devices, the internal electronic control components generate a large amount of heat. Existing aerosol generating devices all choose to directly dissipate the heat generated by the electronic control components into the external environment, and allow the low-temperature air from the outside environment to directly enter the heating chamber of the aerosol generating device. The heat generated by the electronic control components cannot be effectively recovered and utilized, which is not conducive to improving the heating efficiency of the aerosol generating device. Summary of the Invention

[0004] To address the aforementioned technical problems, this disclosure provides an aerosol generating apparatus and an aerosol generating system.

[0005] In a first aspect, this disclosure provides an aerosol generating apparatus, comprising: A housing having a cigarette inlet and a cavity communicating with the cigarette inlet; A heating component is disposed within the cavity, and the heating component is used to heat the aerosol generation matrix; An electronic control component is disposed within the cavity and is electrically connected to the heating component. An air intake section is connected to the cavity and forms an air intake flow from the electronic control component to the heating component within the cavity, so as to preheat the air intake flow using the heat emitted by the electronic control component.

[0006] Optionally, it further includes a first heat recovery component disposed within the cavity, the first heat recovery component being in contact with the electronic control component, the first heat recovery component being configured to recover the heat of the electronic control component to preheat the intake airflow.

[0007] Optionally, the first heat recovery component includes a heat recovery body and heat recovery fins. The heat recovery body is disposed in contact with the electronic control component, and the heat recovery fins are connected to the heat recovery body. The heat recovery fins are used for heat exchange with the inlet airflow.

[0008] Optionally, the heat recovery fins are provided in multiple and spaced apart, and a sub-cavity for the air intake is formed between two adjacent heat recovery fins and the inner wall of the shell. The heat recovery fins are provided with flow holes, and two adjacent sub-cavities are connected through the flow holes.

[0009] Optionally, the flow holes on two adjacent heat recovery fins are staggered.

[0010] Optionally, the heat recovery body has a first heat-absorbing zone that exchanges heat with the electronic control component and a first heat-releasing zone that exchanges heat with the heat recovery fins. The heat recovery body is provided with a first medium cavity, which extends between the first heat-absorbing zone and the first heat-releasing zone. The first medium cavity is provided with a first heat recovery medium capable of gas-liquid conversion. The first heat recovery medium is configured to vaporize and absorb heat in the first heat-absorbing zone and liquefy and release heat in the first heat-releasing zone.

[0011] Optionally, the heat recovery body further includes a first liquid-absorbing core disposed within the first medium cavity. The first liquid-absorbing core extends between the first heat-absorbing zone and the first heat-releasing zone. The first liquid-absorbing core is configured to absorb the first heat recovery medium liquefied in the first heat-releasing zone and guide the liquefied first heat recovery medium to the first heat-absorbing zone.

[0012] Optionally, it further includes a second heat recovery component disposed within the cavity, the second heat recovery component and the heating assembly surrounding a heating cavity into which the aerosol generating matrix is ​​inserted, the second heat recovery component being configured to recover heat from the heating assembly to heat the aerosol generating matrix.

[0013] Optionally, the second heat recovery component has a second heat-absorbing zone that exchanges heat with the heating component and a second heat-releasing zone that exchanges heat with the aerosol generating matrix. The second heat recovery component is provided with a second medium cavity, and the second medium cavity is provided with a second heat recovery medium capable of gas-liquid conversion. The second medium cavity extends between the second heat-absorbing zone and the second heat-releasing zone. The second heat recovery medium is configured to vaporize and absorb heat in the second heat-absorbing zone and liquefy and release heat in the second heat-releasing zone.

[0014] Optionally, the second heat recovery component further includes a second liquid-absorbing core disposed within the second medium cavity. The second liquid-absorbing core extends into the second heat-absorbing zone and the second heat-releasing zone. The second liquid-absorbing core is configured to absorb the liquefied second heat recovery medium in the second heat-releasing zone and guide the liquefied second heat recovery medium to the second heat-absorbing zone.

[0015] Secondly, an aerosol generation system is provided, including an aerosol generation article and the aforementioned aerosol generation device.

[0016] The technical solution provided in this disclosure has the following advantages compared with the prior art: The airflow in the aerosol generating device first flows to the electronic control component, using the waste heat of the electronic control component to preheat the airflow. This achieves the recovery and utilization of the waste heat of the electronic control component, improving the heating efficiency of the aerosol generating device. At the same time, the continuous blowing and heat dissipation of the airflow on the electronic control component also effectively reduces the operating temperature of the electronic control component, which helps to extend the service life of the electronic control component and improve the overall working stability and reliability of the aerosol generating device.

[0017] The aerosol generation system includes aerosol generation products and the aforementioned aerosol generation device, which can effectively recover and utilize the waste heat of the electronic control components, thereby improving the overall energy efficiency of the aerosol generation system. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the aerosol generating apparatus according to an embodiment of the present disclosure; Figure 2 This is a structural cross-sectional schematic diagram of the aerosol generating device described in the embodiments of this disclosure; Figure 3 This is a structurally exploded schematic diagram of the aerosol generating device described in the embodiments of this disclosure; Figure 4 This is a schematic diagram of the airflow direction of the aerosol generating device according to an embodiment of this disclosure; Figure 5 This is a top-view perspective view of the first heat recovery component described in an embodiment of this disclosure; Figure 6 for Figure 4 A magnified view of a portion of point A in the middle.

[0021] in: 1. Housing; 11. Cigarette inlet; 12. Cavity; 121. Sub-cavity; 13. First half-shell; 14. Second half-shell; 15. First shell end cap; 16. Second shell end cap; 17. Switch button; 18. Support body; 2. Heating components; 3. Electronic control components; 31. Power supply module; 32. Circuit board; 321. Chip; 33. Power charging module; 4. Air intake section; 5. First heat recovery component; 51. Heat recovery body; 511. First medium cavity; 512. First liquid suction core; 52. Heat recovery fins; 521. Flow hole; 6. Second heat recovery component; 61. Second medium chamber; 62. Second liquid suction core; 100. Aerosol generation matrix. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0023] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0024] Electrically heated aerosol generators have gained widespread attention and application as a substitute for traditional cigarettes. They can bake out the effective components such as nicotine in the aerosol generating matrix through electric heating. Unlike the traditional combustion reaction, the electrically heated aerosol generator can effectively reduce the release of harmful substances such as tar.

[0025] However, during the use of aerosol generating devices, the internal electronic control components generate a large amount of heat. Existing aerosol generating devices all choose to directly dissipate the heat generated by the electronic control components into the external environment, and allow the low-temperature air from the outside environment to directly enter the heating chamber of the aerosol generating device. The heat generated by the electronic control components cannot be effectively recovered and utilized, which is not conducive to improving the heating efficiency of the aerosol generating device.

[0026] Therefore, this embodiment proposes an aerosol generating device, such as... Figures 1 to 3As shown, it includes a housing 1, a heating assembly 2, an electrical control assembly 3, and an air inlet 4. The housing 1 has a cigarette inlet 11 and a cavity 12 communicating with the cigarette inlet 11. The cigarette inlet 11 is used to insert a heated aerosol generating matrix 100. The heating assembly 2 is disposed in the cavity 12 and is used to heat the aerosol generating matrix 100; the aerosol generating matrix 100 can release aerosol substances such as nicotine after being heated. The electrical control assembly 3 is disposed in the cavity 12 and is electrically connected to the heating assembly 2 to supply power and control the heating assembly 2. The air inlet 4 communicates with the cavity 12 and forms an airflow from the electrical control assembly 3 to the heating assembly 2 within the cavity 12, so as to preheat the airflow using the heat emitted by the electrical control assembly 3.

[0027] Thus, when the user inhales, outside air enters the cavity 12 through the air inlet 4. The airflow first flows towards the electronic control component 3. The heat emitted by the electronic control component 3 during operation preheats the airflow. Utilizing the waste heat of the electronic components 3, the airflow is preheated, increasing the temperature of the airflow flowing towards the heating component 2, thereby improving the overall heating efficiency of the aerosol generating device. Through the above airflow path design, the airflow receives preheating from the electronic control component 3 before reaching the heating component 2, increasing the temperature of the airflow towards the heating component 2 and realizing the recovery and utilization of the waste heat of the electronic control component 3, thus improving the heating efficiency of the aerosol generating device. At the same time, the continuous blowing and cooling of the electronic control component 3 by the airflow also effectively reduces the operating temperature of the electronic control component 3, helping to extend its service life and improve the overall operational stability and reliability of the aerosol generating device.

[0028] It is understandable that existing aerosol generating devices all directly guide low-temperature outside air to the heating component 2, lacking a preheating process for the air intake. During the user's suction process, a large amount of low-temperature air flows to the heating component 2 simultaneously, causing a rapid temperature change and affecting the heating effect of the heating component 2 on the aerosol generating matrix 100. Therefore, in this embodiment, the heat of the electronic control component 3 is used to preheat the air intake first, increasing the temperature of the air intake flowing to the heating component 2. This can reduce the adverse effects of the low air intake temperature on the heating of the aerosol generating matrix 100 to a certain extent, thereby improving the heating efficiency and heating effect of the aerosol generating device.

[0029] It is worth noting that the aerosol-generating article referred to in this embodiment includes an aerosol-generating matrix that can provide volatile components when heated. The aerosol-generating matrix can include any tobacco-containing material, such as one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. The aerosol-generating matrix may or may not contain nicotine. This embodiment does not specifically limit the composition and form of the aerosol-generating matrix; any aerosol-generating matrix that can produce volatile components upon heating falls within the scope of protection of this application.

[0030] Exemplarily, the electronic control component 3 in this embodiment may specifically include a power supply module 31 and a circuit board 32. The circuit board 32 is connected to the power supply module 31 and the heating component 2. The power supply module 31 supplies power to the heating component 2 and the circuit board 32. The circuit board 32 is electrically connected to the heating component 2 to achieve heating control of the heating component 2. A large number of chips 321 are disposed on the circuit board 32. When the aerosol generating device is working, both the power supply module 31 and the chips 321 on the circuit board 32 release a large amount of heat. When the airflow passes through the electronic control component 3, such as... Figure 4 As shown ( Figure 4 (The direction of the arrow shown is the airflow direction of the intake airflow). The intake airflow exchanges heat with the power module 31 and the circuit board 32, and the intake airflow is preheated, which increases the temperature of the airflow flowing to the heating component 2.

[0031] Optionally, the electronic control component 3 may further include a power charging module 33, which is connected to the power module 31 and is used to charge the power module 31. Specifically, the power charging module 33 is provided with a charging socket, which can charge the power module 31 through an external power cord.

[0032] In some embodiments, such as Figure 3 As shown, the aerosol generating device also includes a first heat recovery component 5 disposed in the cavity 12. The first heat recovery component 5 is disposed in contact with the electronic control component 3. The first heat recovery component 5 is configured to recover the heat of the electronic control component 3 to preheat the incoming airflow.

[0033] That is, such as Figure 3 As shown, in order to improve the heat exchange effect between the electronic control component 3 and the intake airflow, a first heat recovery component 5 is provided on the electronic control component 3 in this embodiment. The first heat recovery component 5 has a heat-conducting structure and is in direct contact with the electronic control component 3. It can absorb the heat emitted by the electronic control component 3 and effectively transfer the heat emitted by the electronic control component 3 to the intake airflow, so as to improve the preheating effect of the electronic control component 3 on the intake airflow.

[0034] Furthermore, the first heat recovery component 5 may include a heat recovery body 51 and heat recovery fins 52. The heat recovery body 51 is disposed in contact with the electronic control component 3, and the heat recovery fins 52 are connected to the heat recovery body 51. The heat recovery fins 52 are used for heat exchange with the incoming airflow.

[0035] That is, such as Figure 3As shown, the heat recovery body 51 in this embodiment is flat and has heat recovery fins 52. The heat recovery body 51 is in contact with the electronic control component 3. Exemplarily, in this embodiment, the heat recovery body 51 is simultaneously in contact with the power module 31, the circuit board 32, and the power charging module 33. The top surface of the heat recovery body 51 is in contact with the circuit board 32. Preferably, the chip 321 on the circuit board 32 contacts the heat recovery body 51 for heat exchange. The bottom surface of the heat recovery body 51 is in contact with the power module 31, and the end of the heat recovery body 51 is in contact with the power charging module 33, so as to fully absorb the heat released by the electronic control component 3 during operation. The heat recovery body 51 can quickly conduct the dense heat generated by the power module 31 and the chip 321 through a low thermal resistance path and efficiently transfer the heat to the heat recovery fins 52. The heat recovery fins 52, with their large surface area structure, can effectively increase the heat exchange area with the incoming airflow, so that the incoming airflow flowing through the heat recovery fins 52 can achieve rapid heating. The specific shape, location, and quantity of the heat recovery fins 52 can be designed and selected according to the actual situation, and are not limited to the situation shown in the attached drawings of this embodiment.

[0036] In some embodiments, the heat recovery fins 52 are provided in multiple and spaced apart. A sub-cavity 121 for airflow is formed between two adjacent heat recovery fins 52 and the inner wall of the housing 1. The heat recovery fins 52 are provided with flow holes 521, and two adjacent sub-cavities 121 are connected through the flow holes 521.

[0037] That is, such as Figure 2 and Figure 4 As shown, in order to enable the heat recovery fins 52 to fully exchange heat with the incoming airflow and raise the temperature, the heat recovery fins 52 are directly sealed to the inner wall of the shell 1. Multiple spaced heat recovery fins 52 are separated to form multiple sub-cavities 121, and flow holes 521 are opened on the heat recovery fins 52 to connect adjacent sub-cavities 121. When the incoming airflow flows to the heating component 2 through the electronic control component 3, the incoming airflow must flow through each sub-cavity 121. Thus, the actual flow path length of the incoming airflow can be extended in a limited space, the contact time between the incoming airflow and the heat recovery fins 52 can be increased, and the incoming airflow can fully absorb the heat conducted by the heat recovery fins 52, thereby improving the preheating effect of the incoming airflow.

[0038] Furthermore, such as Figure 2 and Figure 4 As shown, in this embodiment, the flow holes 521 on two adjacent heat recovery fins 52 are staggered. This causes the intake airflow to flow in a tortuous path between adjacent sub-cavities 121, further extending the flow path and making the heat exchange between the intake airflow and the heat recovery fins more thorough and uniform. For example, as... Figure 2As shown, in this embodiment, among two adjacent heat recovery fins 52, the flow hole 521 of one heat recovery fin 52 is located above the heat recovery body 51, specifically at the connection between the heat recovery fin 52 and the top surface of the heat recovery body 51. The flow hole 521 of the other heat recovery fin 52 is located below the heat recovery body 51, specifically at the connection between the other heat recovery fin 52 and the bottom surface of the heat recovery body 51. Thus, a structural form is achieved in which the flow holes 521 of the two adjacent heat recovery fins 52 are staggered on the top and bottom sides of the heat recovery body 51.

[0039] In addition, the flow holes 521 on two adjacent heat recovery fins 52 can also be staggered in other ways. It is only necessary to ensure that the flow holes 521 on two adjacent heat recovery fins 52 are not directly opposite each other, including but not limited to the way shown in the figure of this embodiment.

[0040] Furthermore, the heat recovery body 51 in this embodiment has a first heat-absorbing zone that exchanges heat with the electronic control component 3 and a first heat-releasing zone that exchanges heat with the heat recovery fins 52. The heat recovery body 51 is provided with a first medium cavity 511, which extends between the first heat-absorbing zone and the first heat-releasing zone. The first medium cavity 511 is provided with a first heat recovery medium capable of gas-liquid conversion. The first heat recovery medium is configured to vaporize and absorb heat in the first heat-absorbing zone and liquefy and release heat in the first heat-releasing zone.

[0041] That is, in order to further improve the heat exchange effect of the heat recovery body 51, a first medium cavity 511 is provided in the heat recovery body 51. The first medium cavity 511 is filled with a first heat recovery medium capable of gas-liquid conversion. The heat recovery body 51 has a first heat absorption zone that exchanges heat with the electronic control component 3 and a first heat release zone that exchanges heat with the heat recovery fins 52. The first medium cavity 511 extends between the first heat absorption zone and the first heat release zone, such as... Figure 5 As shown, Figure 5 This is a top-view perspective view of the first heat recovery component 5. Figure 5 The solid arrow shown indicates the flow direction of the liquid first heat recovery medium. Figure 5 The dashed arrows shown indicate the flow direction of the gaseous first heat recovery medium. Exemplarily, in this embodiment... Figure 5 The right end region of the heat recovery body 51 shown is the first heat absorption zone (that is, the region near the electronic control component 3). Figure 5The left end region of the heat recovery body 51 shown is the first heat release zone (i.e., the region where the heat recovery fins 52 are provided). The first medium cavity 511 extends between the first heat absorption zone and the first heat release zone. The first heat recovery medium undergoes gas-liquid conversion within the first medium cavity 511. The heat recovery body 51 is in contact with the electronic control component 3. The first heat absorption zone of the heat recovery body 51 absorbs the heat emitted by the electronic control component 3. After being heated in the first heat absorption zone, the first heat recovery medium changes from a liquid state to a gaseous state and absorbs a large amount of latent heat of vaporization. The gaseous first heat recovery medium moves within the first medium cavity 511 to the first heat release zone, where the temperature is relatively lower. In the first heat release zone, the gaseous first heat recovery medium liquefies upon cooling, releasing the heat it carries and efficiently transferring the heat to the heat recovery fins 52. The liquefied first heat recovery medium then flows back to the first heat absorption zone along the first medium cavity 511, and this cycle repeats continuously. This embodiment uses a phase change latent heat transfer mechanism to replace the traditional pure heat conduction heat transfer method. Through the above-mentioned gas-liquid phase change cycle, its equivalent heat transfer coefficient is much higher than that of metal solid heat conduction of the same size. It can quickly and efficiently transfer a large amount of waste heat generated by the electronic control component 3 to the heat recovery fin 52 side.

[0042] Furthermore, in order to ensure that the liquefied first heat recovery medium can be quickly and reliably returned to the first heat absorption zone, such as... Figure 5 As shown, the heat recovery body 51 in this embodiment also has a first liquid-absorbing core 512 disposed in the first medium cavity 511. The first liquid-absorbing core 512 extends between the first heat-absorbing zone and the first heat-releasing zone. The first liquid-absorbing core 512 is configured to absorb the first heat recovery medium after liquefaction in the first heat-releasing zone and guide the liquefied first heat recovery medium to the first heat-absorbing zone.

[0043] In this embodiment, the first liquid-absorbing core 512 is a capillary structure with a large number of pores. By setting the first liquid-absorbing core 512 extending between the first heat-absorbing zone and the first heat-releasing zone in the first medium cavity 511, the capillary force of the first liquid-absorbing core 512 is used to adsorb and guide the liquefied first heat recovery medium in the first heat-releasing zone to the first heat-absorbing zone, thereby timely replenishing the first heat-absorbing zone with liquid first heat recovery medium, so as to ensure that the gas-liquid phase change cycle of the first heat recovery medium can be carried out continuously and stably. Furthermore, during actual use, the aerosol generating device is usually held in a gripping posture with the cigarette inlet 11 facing vertically upward or tilted upward. At this time, the first heat release zone (the area with heat recovery fins 52) is higher than the first heat absorption zone (the area in contact with the electronic control component 3) in the direction of gravity. In addition to being driven by the capillary force of the first liquid absorption core 512, the liquefied first heat recovery medium is also subjected to gravity, which together promotes the first heat recovery medium to flow back from the first heat release zone to the first heat absorption zone quickly, so that the liquid first heat recovery medium can be replenished to the first heat absorption zone more timely to participate in the next round of phase change heat absorption.

[0044] Furthermore, such as Figure 5As shown, in this embodiment, the first liquid-absorbing core 512 and the sidewall of the first medium cavity 511 are spaced apart. That is, the opposite sides of the first liquid-absorbing core 512 are spaced apart from the sidewall of the first medium cavity 511 by a certain distance, so that cavities for the gaseous first heat recovery medium to flow are formed on the opposite sides of the first liquid-absorbing core 512, so that the gas-liquid phase change reaction of the first heat recovery medium can occur on the opposite sides of the first liquid-absorbing core 512, thereby further improving the heat exchange effect.

[0045] Furthermore, such as Figure 5 As shown, in order to ensure that the heat generated by the chip 321 can be quickly absorbed by the heat recovery body 51, this embodiment makes appropriate designs to the circuit board 32, placing the chip 321 on the circuit board as close as possible to the first liquid absorption core 512. That is, as... Figure 5 As shown, Figure 5 The diagram shows a top-down projection of chip 321. In this embodiment, all chips 321 of the circuit board 32 are arranged directly above the first liquid-absorbing core 512. The chips 321 are bonded to the surfaces of the heat recovery body 51 using silicone adhesive. Silicone has good thermal conductivity, allowing the heat generated by the chips 321 to directly act on the liquid first heat recovery medium adsorbed within the first liquid-absorbing core 512 via a very short heat conduction path. This shortens the heat transfer distance and thermal resistance between the heat source and the working fluid. The liquid first heat recovery medium can rapidly absorb heat and reach its vaporization temperature within the first heat absorption zone. Simultaneously, the heat generated by the chips 321 can be quickly dissipated, which helps extend the chip's lifespan and improve the operational stability of the circuit board 32.

[0046] For example, the heat recovery body 51 in this embodiment can be made of copper. The first heat recovery medium in this embodiment can be a mixture of deionized water and ethanol, specifically 45% by volume of deionized water and 55% by volume of ethanol. Its freezing point is about -22°C, it is not easy to solidify, it has high compatibility with copper, it is not easy to undergo chemical reactions, it is safe, non-toxic and economical. The first liquid absorber 512 in this embodiment can be a copper powder sintered liquid absorber. The temperature in the first heat absorption zone of the heat recovery body 51 can reach 40-80°C, and the temperature in the second heat release zone is about 10-30°C. Compared with the pure copper heat conduction method (thermal conductivity of about 401 W / (m·K)), this embodiment uses the gas-liquid conversion of the first heat recovery medium and the liquid absorption and guidance of the first liquid absorber 512, and its equivalent thermal conductivity can reach 1500 / (m·K) to 3500 W / (m·K), which is 4 to 8 times that of traditional pure copper solid-state heat conduction.

[0047] Similarly, the aerosol generating device in this embodiment also includes a second heat recovery component 6 disposed within the cavity 12, such as... Figures 2 to 4As shown, the second heat recovery component 6 and the heating component 2 surround a heating cavity into which the aerosol generating matrix 100 is inserted. The second heat recovery component 6 is configured to recover the heat from the heating component 2 to heat the aerosol generating matrix 100.

[0048] In this embodiment, the second heat recovery component 6 has an annular structure, which surrounds the heating component 2 to form a heating cavity. One axial end of the second heat recovery component 6 is in contact with the heating component 2. The waste heat generated by the heating component 2 can be quickly conducted to the second heat recovery component 6, and the heat can be evenly distributed to the entire annular wall of the second heat recovery component 6, effectively reducing local hot spots. It can reasonably distribute the excess heat of the heating component 2 to other low-temperature areas, so that the aerosol generation matrix 100 in the heating cavity is heated more evenly, the components are released more evenly, and the taste stability is better.

[0049] Furthermore, the second heat recovery component 6 has a second heat-absorbing zone that exchanges heat with the heating component 2 and a second heat-releasing zone that exchanges heat with the aerosol generating matrix 100. The second heat recovery component 6 is provided with a second medium cavity 61, which is provided with a second heat recovery medium capable of gas-liquid conversion. The second medium cavity 61 extends between the second heat-absorbing zone and the second heat-releasing zone. The second heat recovery medium is configured to vaporize and absorb heat in the second heat-absorbing zone and liquefy and release heat in the second heat-releasing zone.

[0050] That is, such as Figure 6 As shown, Figure 6 The solid arrow shown indicates the flow direction of the liquid second heat recovery medium. Figure 6 The dashed arrow shown indicates the flow direction of the gaseous second heat recovery medium.

[0051] Exemplarily, in this embodiment Figure 6 The right end region of the second heat recovery component 6 shown is the second heat absorption zone (that is, the region close to the heating component 2). Figure 6 The left end region of the second heat recovery component 6 shown is the second heat release zone (i.e., the region near the smoke inlet 11, or the region away from the heating component 2). The second medium cavity 61 extends into the second heat absorption zone and the second heat release zone. The second heat recovery medium undergoes gas-liquid conversion within the second medium cavity 61. The second heat recovery component 6 is in contact with the heating component 2. The second heat absorption zone of the second heat recovery component 6 absorbs the heat emitted by the heating component 2. After being heated in the second heat absorption zone, the second heat recovery medium changes from a liquid state to a gaseous state and absorbs a large amount of latent heat of vaporization. The gaseous second heat recovery medium moves within the second medium cavity 61 to the second heat release zone, where it cools and liquefies, releasing the heat it carries. This heat is efficiently and evenly transferred to the aerosol generation matrix 100. The liquefied second heat recovery medium then flows back to the second heat absorption zone along the second medium cavity 61, and this cycle repeats continuously.

[0052] Similarly, to ensure that the liquefied second heat recovery medium can quickly and reliably flow back to the second heat absorption zone, the second heat recovery component 6 in this embodiment also has a second liquid-absorbing core 62 disposed within the second medium cavity 61. The second liquid-absorbing core 62 extends into the second heat absorption zone and the second heat release zone. The second liquid-absorbing core 62 is configured to absorb the liquefied second heat recovery medium in the second heat release zone and guide the liquefied second heat recovery medium to the second heat absorption zone. In this embodiment, the second liquid-absorbing core 62 is a capillary structure with a large number of pores. Utilizing the capillary force of the second liquid-absorbing core 62, the liquefied second heat recovery medium in the second heat release zone can be adsorbed and guided to the second heat absorption zone. This is similar to the above principle, and will not be elaborated further in this embodiment.

[0053] For example, the second heat recovery component 6 in this embodiment can be made of stainless steel, and the second heat recovery medium can be naphthalene. Under the premise of meeting the phase change cycle requirements, naphthalene will not react with the stainless steel second heat recovery component 6, exhibiting good chemical inertness and being safe and economical. The second liquid absorber 62 in this embodiment can be a stainless steel powder sintered liquid absorber. The operating temperature of the second heat absorption zone of the second heat recovery component 6 can reach 300-400℃, and the operating temperature at the heat release section is approximately 60-80℃. The equivalent thermal conductivity of the second heat recovery component 6 in this embodiment can reach 1200 / (m·K) to 2000W / (m·K), which is 3 to 5 times that of traditional pure copper solid-state thermal conductivity.

[0054] Optionally, in this embodiment, the housing 1 of the aerosol generating device is formed by assembling a first half-shell 13, a second half-shell 14, a first end cap 15, and a second end cap 16, as shown below. Figure 3 As shown, the cigarette inlet 11 is located on the first shell end cap 15, the air inlet 4 is located on the second shell end cap 16, and a switch button 17 is located on the second half-shell 14. The switch button 17 is electrically connected to the electronic control component 3 to control the start and stop of the electronic control component 3. The shell 1 of this embodiment also includes a support body 18 located at the junction of the first half-shell 13 and the second half-shell 14. The heating component 2 and the electronic control component 3 are located on opposite sides of the support body 18, respectively. The heating component 2 is connected to the support body 18, and both the heating component 2 and the support body 18 are provided with air holes for airflow. In use, the user presses the switch button 17, and the heating component 2 begins to heat up, heating the aerosol generating matrix 100. When the user inhales, air enters the cavity 12 through the air inlet 4, exchanges heat with the first heat recovery component 5, and then flows through the air holes of the heating component 2 and the support 18 to the aerosol generating matrix 100. The nicotine and other aerosol substances volatilized by the heated aerosol generating matrix 100 are inhaled into the user's body with the airflow. The heating component 2 can be an internal heating component or an external heating component, but is not limited to these. In this embodiment, the heating component 2 can be... Figure 4The structure shown may also be other structures. This embodiment does not exhaustively list the specific structural forms of the heating component 2. Any structural form of the heating component 2 falls within the protection scope of this application.

[0055] In addition, this embodiment also provides an aerosol generation system, which includes an aerosol generation product and the aforementioned aerosol generation device. The aerosol generation device is used to heat the aerosol generation product. The aerosol generation system can effectively recover and utilize the waste heat of the electronic control components, thereby improving the overall energy efficiency of the aerosol generation system.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0057] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aerosol generating device, characterized in that, include: The housing (1) has a cigarette inlet (11) and a cavity (12) communicating with the cigarette inlet (11). A heating component (2) is disposed inside the cavity (12) and is used to heat the aerosol generation matrix (100). An electrical control component (3) is disposed inside the cavity (12), and the electrical control component (3) is electrically connected to the heating component (2); The air intake (4) is connected to the cavity (12) and forms an air intake flow from the electronic control component (3) to the heating component (2) in the cavity (12) so as to preheat the air intake flow with the heat emitted by the electronic control component (3).

2. The aerosol generating apparatus according to claim 1, characterized in that, It also includes a first heat recovery component (5) disposed in the cavity (12), the first heat recovery component (5) being disposed in contact with the electronic control component (3), and the first heat recovery component (5) being configured to recover the heat of the electronic control component (3) to preheat the intake airflow.

3. The aerosol generating apparatus according to claim 2, characterized in that, The first heat recovery component (5) includes a heat recovery body (51) and heat recovery fins (52). The heat recovery body (51) is in contact with the electronic control component (3), and the heat recovery fins (52) are connected to the heat recovery body (51). The heat recovery fins (52) are used to exchange heat with the incoming airflow.

4. The aerosol generating apparatus according to claim 3, characterized in that, The heat recovery fins (52) are provided in multiple and spaced apart. A sub-cavity (121) for the air intake is formed between two adjacent heat recovery fins (52) and the inner wall of the shell (1). The heat recovery fins (52) are provided with flow holes (521), and two adjacent sub-cavities (121) are connected through the flow holes (521).

5. The aerosol generating apparatus according to claim 3, characterized in that, The heat recovery body (51) has a first heat-absorbing zone that exchanges heat with the electronic control component (3) and a first heat-releasing zone that exchanges heat with the heat recovery fins (52). The heat recovery body (51) is provided with a first medium cavity (511), which extends between the first heat-absorbing zone and the first heat-releasing zone. The first medium cavity (511) is provided with a first heat recovery medium capable of gas-liquid conversion. The first heat recovery medium is configured to vaporize and absorb heat in the first heat-absorbing zone and liquefy and release heat in the first heat-releasing zone.

6. The aerosol generating apparatus according to claim 5, characterized in that, The heat recovery body (51) also has a first liquid-absorbing core (512) disposed in the first medium cavity (511). The first liquid-absorbing core (512) extends between the first heat-absorbing zone and the first heat-releasing zone. The first liquid-absorbing core (512) is configured to absorb the first heat recovery medium after liquefaction in the first heat-releasing zone and guide the liquefied first heat recovery medium to the first heat-absorbing zone.

7. The aerosol generating apparatus according to any one of claims 1-6, characterized in that, It also includes a second heat recovery component (6) disposed in the cavity (12), the second heat recovery component (6) and the heating component (2) surrounding to form a heating cavity for the aerosol generating matrix (100) to be inserted, the second heat recovery component (6) being configured to recover the heat of the heating component (2) to heat the aerosol generating matrix (100).

8. The aerosol generating apparatus according to claim 7, characterized in that, The second heat recovery component (6) has a second heat-absorbing zone that exchanges heat with the heating component (2) and a second heat-releasing zone that exchanges heat with the aerosol generating matrix (100). The second heat recovery component (6) is provided with a second medium cavity (61). The second medium cavity (61) is provided with a second heat recovery medium capable of gas-liquid conversion. The second medium cavity (61) extends between the second heat-absorbing zone and the second heat-releasing zone. The second heat recovery medium is configured to vaporize and absorb heat in the second heat-absorbing zone and liquefy and release heat in the second heat-releasing zone.

9. The aerosol generating apparatus according to claim 8, characterized in that, The second heat recovery component (6) also has a second liquid-absorbing core (62) disposed in the second medium cavity (61). The second liquid-absorbing core (62) extends to the second heat-absorbing zone and the second heat-releasing zone. The second liquid-absorbing core (62) is configured to absorb the second heat recovery medium after liquefaction in the second heat-releasing zone and guide the liquefied second heat recovery medium to the second heat-absorbing zone.

10. An aerosol generation system, characterized in that, Includes aerosol generating articles and aerosol generating apparatus as described in any one of claims 1-9.

Images