Aerosol-generating device, system and control method

Abstract

This invention discloses an aerosol generation device, system, and control method. The device includes a first housing with a suction port; a liquid storage component disposed within the first housing; a liquid guiding component disposed at the opening of the liquid storage component for discharging e-liquid from the liquid storage component, having mutually spaced first and second heating zones; first and second heating elements respectively connected to the first and second heating zones and configured to alternately heat; and a spiral flow guide baffle disposed between the inner wall of the first housing and the outer wall of the liquid storage component, defining a spiral airflow channel with an air inlet and an air outlet, the air outlet communicating with the suction port; the lower end of the spiral flow guide baffle extends to the area where the liquid guiding component is located, and the wall surface of the spiral flow guide baffle forms a guiding surface that guides condensate to the liquid guiding component. This invention can effectively avoid dry burning and burnt coil problems, extend the life of the atomizer coil, realize e-liquid recovery and secondary atomization utilization, and improve e-liquid utilization rate.

Description

Technical Field

[0001] This invention relates to the field of smoking accessories technology, and in particular to an aerosol generating device, system and control method. Background Technology

[0002] With the continuous development of e-cigarette technology, porous ceramic atomizing cores have gradually replaced traditional fiber wicks and become the mainstream atomization solution in the market due to their advantages such as stable atomization flavor, uniform heating temperature, and long service life. However, existing porous ceramic atomizing cores still have the following technical defects.

[0003] Firstly, there is insufficient matching between the liquid conduction rate and the atomization consumption rate of the porous ceramic matrix. When users vape continuously at high frequency, the aerosol-forming matrix (commonly known as "e-liquid") on the atomizing surface is rapidly consumed. However, due to the long liquid conduction path and high flow resistance within the pores of the porous ceramic, the e-liquid cannot be replenished to the atomizing surface in time, resulting in insufficient liquid supply to the atomizing surface. This leads to problems such as dry burning and burnt coils, severely affecting the vaping experience and shortening the lifespan of the atomizing coil.

[0004] Secondly, most existing atomizing cartridges use a straight-cylinder design for their airflow channels. During inhalation, the condensation caused by the temperature drop as the high-temperature aerosol flows through the straight airflow channel, along with un-atomized e-liquid particles carried by the airflow during atomization, can easily enter the user's mouth directly, resulting in unpleasant experiences such as spitting out liquid. To address these issues, some existing atomizing cartridges incorporate absorbent cotton inside the airflow channel to absorb condensation. However, once the absorbent cotton is saturated, it loses its ability to trap liquid, still posing a risk of leakage. Furthermore, the e-liquid absorbed by the absorbent cotton cannot be recycled, leading to waste and reduced e-liquid utilization.

[0005] Thirdly, the physical properties of e-liquid further exacerbate the difficulty in liquid delivery. E-liquid contains approximately 30% to 70% glycerol (glycerol by mass). Glycerol has a high viscosity at room temperature, resulting in significant flow resistance of the e-liquid within the microporous structure of the porous ceramic. Furthermore, the poor porosity design of the porous ceramic in some products further limits the liquid delivery rate. Under the combined effect of these factors, the e-liquid delivery rate of the porous ceramic matrix is ​​insufficient to meet the atomization consumption requirements during high-frequency vaping, further increasing the risk of dry burning. Existing technologies rely solely on the heat generated during atomization by the heating element to indirectly heat the e-liquid and reduce its viscosity. This heating method is passive and has limited effectiveness, failing to address the root cause of the slow liquid delivery problem due to the high viscosity of the e-liquid. Summary of the Invention

[0006] This invention proposes an aerosol generation device, system, and control method to solve the above-mentioned problems.

[0007] In a first aspect, embodiments of the present invention disclose an aerosol generating apparatus, comprising:

[0008] The first housing has a suction port;

[0009] A liquid storage assembly, disposed inside the first housing, includes:

[0010] The liquid storage device has an opening and a receiving part communicating with the opening. The opening is far away from the suction port relative to the receiving part, and the receiving part constitutes a space for containing the e-liquid.

[0011] A liquid guiding component is provided at the opening of the liquid storage component for discharging the e-liquid in the liquid storage component. The liquid guiding component has a first heating zone and a second heating zone that are spaced apart from each other.

[0012] The atomizing component, located inside the first housing, includes:

[0013] The first heating element and the second heating element are respectively connected to the first heating area and the second heating area, and are configured to heat alternately;

[0014] A spiral flow guide baffle is disposed between the inner wall of the first housing and the outer wall of the liquid storage component. The spiral flow guide baffle and the inner wall of the first housing and the outer wall of the liquid storage component define a spiral airflow channel. The spiral airflow channel has an air inlet end and an air outlet end, and the air outlet end is connected to the suction port. The lower end of the spiral flow guide baffle extends to the area where the liquid guide component is located, and the wall surface of the spiral flow guide baffle forms a guide surface that guides the condensate to the liquid guide component.

[0015] According to this technical solution, the aerosol generating device provided by the present invention can effectively avoid dry burning and burnt coil problems, extend the service life of the atomizing coil, and ensure consistent taste; at the same time, it improves the problems of liquid absorption and oil spitting, realizes e-liquid recycling and secondary atomization utilization, improves e-liquid utilization rate; and makes the aerosol quality more uniform, forming a virtuous cycle of liquid supply and atomization.

[0016] According to another specific embodiment of the present invention, a spiral guide baffle is spirally wound around the outer wall of the liquid storage component and is sealed to the inner wall of the first housing.

[0017] According to another specific embodiment of the present invention, a notch is provided on the circumferential outer edge of the liquid guiding component; the aerosol generating device further includes:

[0018] A sealing sleeve is fitted onto the outer wall of the liquid guiding component, and the outer peripheral wall of the sealing sleeve seals against the inner wall of the first housing; the sealing sleeve is partially recessed into the notch at the position corresponding to the notch, thereby forming a notch channel for airflow at the circumferential outer edge of the sealing sleeve, and the notch channel is connected to the air inlet end of the spiral airflow channel.

[0019] According to another specific embodiment of the present invention, the first heating element and the second heating element are respectively fixedly connected to the upper surface of the liquid guiding element.

[0020] According to another specific embodiment of the present invention, it further includes:

[0021] The controller is electrically connected to the first heating element and the second heating element, and is used to control the first heating element and the second heating element to heat up alternately.

[0022] According to another specific embodiment of the present invention, it further includes:

[0023] An airflow sensor, located inside or connected to the spiral airflow channel, is used to detect the user's suction action.

[0024] The controller is electrically connected to the airflow sensor, the first heating element, and the second heating element. The controller is configured to control the heating sequence of the first heating element and the second heating element according to the detection signal of the airflow sensor.

[0025] According to another specific embodiment of the present invention, the controller is configured to control the first heating element and the second heating element to alternately heat up according to the number of suction ports and / or the suction duration of a single port.

[0026] According to another specific embodiment of the present invention, it further includes:

[0027] A preheating component, fixedly connected to the bottom surface of the liquid guiding component, is used to preheat the matrix formed by aerosols adsorbed inside the liquid guiding component; and / or,

[0028] The preheating element is configured to start heating when a suction action is detected, and to turn off heating if no suction action is detected again within a specified time.

[0029] According to another specific embodiment of the present invention, the heating temperature of the preheating element is lower than the heating temperature of the first heating element and / or the second heating element.

[0030] According to another specific embodiment of the present invention, it further includes:

[0031] An atomizing bottom cover is located on the side of the liquid guiding component opposite to the liquid storage component. The atomizing bottom cover includes three positive electrodes and one negative electrode. A first heating element, a second heating element, and a preheating element are electrically connected to the three positive electrodes respectively. The first heating element, the second heating element, and the preheating element are all connected to the negative electrode. The atomizing bottom cover is provided with a first air inlet, which is connected to the air inlet end of the spiral airflow channel; and / or,

[0032] The base plate is fixedly connected to the first housing and is located on the side of the atomizing bottom cover away from the liquid storage component. A second air inlet is provided on the base plate, and the second air inlet is connected in sequence to the first air inlet and the air inlet end of the spiral airflow channel.

[0033] According to another specific embodiment of the present invention, it further includes:

[0034] The second housing is at least partially fitted outside the first housing. The second housing is provided with a third air inlet. The third air inlet is connected to the air inlet end of the spiral airflow channel through the second air inlet and the first air inlet in sequence. The third air inlet is located on the side wall of the second housing and / or at the end of the second housing away from the suction port.

[0035] In a second aspect, the present invention provides an aerosol generation system, including the aerosol generation apparatus of any of the above embodiments.

[0036] According to this technical solution, the aerosol generation system provided by the present invention can effectively avoid dry burning and burnt coil problems, extend the service life of the atomizing coil, and ensure consistent taste; at the same time, it improves the problems of liquid absorption and oil spitting, realizes e-liquid recycling and secondary atomization utilization, improves e-liquid utilization rate; and makes the aerosol quality more uniform, forming a virtuous cycle of liquid supply and atomization.

[0037] Thirdly, the present invention provides a control method for an aerosol generating apparatus as described in any of the above embodiments, comprising the following steps:

[0038] Obtain the user's suction status information;

[0039] Based on the suction status information, the first heating element and the second heating element are controlled to alternately enter the working state.

[0040] According to this technical solution, the control method provided by the present invention can effectively avoid dry burning and burnt coil problems, extend the service life of the atomizing coil, and ensure consistent taste. Attached Figure Description

[0041] Figure 1 This is a three-dimensional structural schematic diagram of the aerosol generation device in an embodiment of the present invention;

[0042] Figure 2 This is an explosion diagram of the aerosol generating device in an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the internal structure of the aerosol generating device in an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram of the structure of the liquid storage component and the atomizing component in an embodiment of the present invention;

[0045] Figure 5 This is a schematic diagram of the airflow path in an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram showing the positional distribution of the preheating component on the liquid guiding component in an embodiment of the present invention.

[0047] Figure Labels

[0048] First housing 1; suction port 11; bottom plate 12; slot 13; second air inlet 121; liquid storage component 21; liquid guiding component 22; first opening 221; first heating element 31; second heating element 32; spiral guide baffle 33; preheating component 34; atomizing bottom cover 35; first air inlet 351; buckle 352; airflow sensor 4; sealing sleeve 5; notch channel 51; second housing 6; circuit board 61; battery 62; charging interface 63; housing bottom plate 64; third air inlet 641. Detailed Implementation

[0049] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0050] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0051] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0052] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0053] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0054] Firstly, reference Figure 1 , Figure 2 as well as Figure 3As shown, an embodiment of the present invention discloses an aerosol generating device, comprising: a first housing 1, a liquid storage component, and an atomizing component. The interior of the first housing 1 is hollow, forming a receiving space. The first housing 1 has a suction port 11 communicating with the receiving space. The liquid storage component is disposed inside the first housing 1 and includes a liquid storage element 21, a liquid guiding element 22, a first heating element 31, a second heating element 32, and a spiral guide baffle 33. The liquid storage element 21 has an opening and a receiving portion communicating with the opening. The opening is farther away from the suction port 11 than the receiving portion, and the receiving portion constitutes a receiving space for the e-liquid. The liquid guiding element 22 is disposed at the opening of the liquid storage element 21 and is used to discharge the e-liquid from the liquid storage element 21. The liquid guiding element 22 has a first heating zone and a second heating zone spaced apart from each other. Heating zone; the atomizing assembly is located inside the first housing 1 and includes: a first heating element 31, a second heating element 32, and a spiral guide baffle 33. The first heating element 31 and the second heating element 32 are respectively connected to the first heating zone and the second heating zone and are configured to heat alternately. The spiral guide baffle 33 is located between the inner wall of the first housing 1 and the outer wall of the liquid storage component 21. The spiral guide baffle 33 defines a spiral airflow channel between the inner wall of the first housing 1 and the outer wall of the liquid storage component 21. The spiral airflow channel has an air inlet end and an air outlet end, and the air outlet end is connected to the suction port 11. The lower end of the spiral guide baffle 33 extends to the area where the liquid guide component 22 is located. The wall surface of the spiral guide baffle 33 forms a guide surface that guides the condensate to the liquid guide component 22.

[0055] In this embodiment, the aerosol generating device provided by the present invention alternates between the first heating element 31 and the second heating element 32, with only one heating element working at any given time. This provides a rest period for the liquid guiding section in the area where the other heating element is located, effectively avoiding dry burning and burnt coil problems caused by insufficient liquid supply due to high-frequency continuous vaping. This extends the lifespan of the atomizing coil and ensures consistent flavor. On the other hand, the spiral airflow channel extends the path of the aerosol from the atomization area to the suction port 11. The centrifugal force generated by the airflow rotating in the spiral channel can throw un-atomized e-liquid particles and condensed droplets entrained in the aerosol towards the channel. The spiral airflow channel prevents e-liquid from directly entering the mouth with the airflow, improving the issues of liquid intake and spitting. At the same time, the intercepted condensate flows back to the liquid guide component 22 along the wall of the spiral guide baffle 33, realizing the recycling and secondary atomization of e-liquid and improving the utilization rate of e-liquid. The two work together, alternating heating to ensure the stability of the atomization process, and the quality of the generated aerosol is more uniform. On this basis, the spiral airflow channel fully cools and mixes the aerosol, making the smoke that finally enters the mouth more delicate and soft. Meanwhile, the e-liquid flowing back to the liquid guide component 22 provides a continuous supply of e-liquid for alternating heating, forming a virtuous cycle of liquid supply and atomization.

[0056] In the above embodiments, the liquid guiding component 22 draws out the e-liquid from the liquid storage component 21 and guides the drawn e-liquid to the heating element for heating. The liquid guiding component 22 is, for example, a porous ceramic matrix with a connected microporous structure, capable of absorbing e-liquid from the liquid storage component 21 via capillary action and storing the e-liquid in the liquid guiding component 22. The porosity, pore size distribution, and pore tortuosity of the porous ceramic can be adjusted according to the formula and sintering process to adapt to aerosols of different viscosities forming a matrix, achieving a matched liquid guiding rate. The ceramic material has high-temperature resistance, does not undergo thermal decomposition or carbonization during repeated heating, and maintains structural stability. Simultaneously, the porous ceramic matrix has advantages over traditional liquid guiding cotton, such as being less prone to scorching and having a longer service life. Combined with the alternating heating control method, it can further extend the overall service life of the atomizing core and ensure consistent flavor. In some embodiments, the liquid guiding component 22 can also be a liquid guiding fiber, such as liquid guiding cotton. In the above embodiment, the spiral guide baffle 33 is spirally wound around the outer wall of the liquid storage component 21 and is sealed to the inner wall of the first housing 1.

[0057] In this embodiment, by setting a spiral guide baffle 33 between the outer wall of the liquid storage component 21 and the inner wall of the first housing 1, and forming a sealed connection, the original axial direct airflow path is transformed into a spiral-encircling long-path airflow channel. The spiral airflow channel forces the airflow to spiral along the outer wall of the liquid storage component 21 at the front edge of the heating area, extending the airflow path. This causes large particles of condensate in the airflow to be thrown towards the surface of the spiral baffle under centrifugal force and flow back to the liquid storage component 21, effectively reducing the amount of condensate entrained at the suction inlet. The sealed connection ensures that the airflow travels completely along the spiral path, preventing airflow short circuits and ensuring the consistency of the airflow state at each suction inlet.

[0058] In some embodiments, the spiral guide baffle 33 can be integrally formed with the liquid storage component 21, eliminating the need for separate assembly processes and connecting parts required for a split structure, simplifying the assembly process, reducing manufacturing costs, and improving production efficiency. Simultaneously, the integrated structure eliminates assembly gaps between the two, ensuring good sealing of the spiral airflow channel without the need for additional sealing elements, preventing airflow short circuits, and preventing loosening or displacement during long-term use, resulting in higher structural reliability. Furthermore, the integrated structure creates a continuous heat conduction path between the spiral guide baffle 33 and the liquid storage component 21, allowing some heat from the atomization area to be conducted to the spiral guide baffle 33 via the liquid storage component 21, providing appropriate temperature regulation for the aerosol in the spiral airflow channel and helping to maintain suitable fluidity of the e-liquid within the liquid storage component 21. Moreover, this structure eliminates the need for pre-reserved assembly gaps and space occupied by connecting structures, facilitating a more compact internal layout and providing a structural basis for the miniaturization design of aerosol generation devices.

[0059] In the above embodiments, continue to refer to Figure 2 The liquid guide 22 is also provided with a first opening 221 that communicates with the air inlet.

[0060] In this embodiment, the first opening 221 provides a low-resistance direct path for airflow, allowing the airflow to reach the heating area without relying entirely on the permeation of the liquid guide 22. This results in a larger air intake under the same suction negative pressure, improving atomization efficiency. By setting the first opening 221, after external air enters through the air inlet, some of the airflow can directly act on the area where the liquid guide 22 is located through the first opening 221. This helps to promptly remove the aerosol formed by atomization from the atomization area, preventing excessive accumulation of aerosol in the atomization area and subsequent condensation. At the same time, the setting of the first opening 221 also helps to balance the air pressure in the atomization area, making the airflow distribution more uniform and further improving the aerosol delivery efficiency and taste consistency. Specifically, the first opening 221 is a notch on the outer edge of the liquid guide 22. There are two notches. This notch not only physically separates the first heating zone and the second heating zone in terms of structure, but also serves as an air intake channel, allowing external airflow to pass through the notch and carry aerosol into the spiral airflow channel. Compared with opening a closed hole on the liquid guide, the notch structure is easier to mold and demold, which helps to reduce the processing difficulty and improve the structural strength of the liquid guide.

[0061] In some embodiments, continue to refer to Figure 2 , Figure 3 The liquid guide 22 has a notch on its circumferential outer edge. This notch does not serve as an air inlet channel, but rather as an installation clearance for the sealing sleeve 5. The aerosol generating device also includes a sealing sleeve 5, which is fitted onto the outer wall of the liquid guide 22, and the outer circumferential wall of the sealing sleeve 5 seals against the inner wall of the first housing 1. The sealing sleeve 5 is partially recessed into the notch at the corresponding position, thereby forming a notch channel 51 for airflow to pass through on the circumferential outer edge of the sealing sleeve 5. The notch channel 51 is connected to the air inlet end of the spiral airflow channel.

[0062] In this embodiment, the notch on the liquid guide 22 serves as an installation clearance for the sealing sleeve 5, transferring the formation of the air intake channel from the liquid guide 22 to the sealing sleeve 5. This eliminates the need for secondary machining of sealing holes on the liquid guide 22, avoiding the process complexity and ceramic substrate cracking risks associated with additional drilling. It also helps maintain the structural integrity of the liquid guide 22 after sintering, improving product yield. The sealing sleeve 5 has a local recess corresponding to the notch, forming a notch channel 51. This, combined with the sealing contact between the outer peripheral wall of the sealing sleeve 5 and the inner wall of the first housing 1, ensures that the airflow enters the spiral airflow channel precisely and controllably through the notch channel 51, preventing airflow leakage or short circuits. Simultaneously, the notch acts as a positioning guide for the sealing sleeve 5 during assembly, reducing assembly difficulty. Furthermore, the sealing sleeve 5 combines sealing, positioning, fixing, and buffering protection functions, eliminating the need for additional sealing rings or positioning brackets. This simplifies the overall structure and assembly process, reducing manufacturing costs and improving production efficiency.

[0063] In the above embodiments, such as Figure 4 As shown, the first heating element 31 and the second heating element 32 are respectively fixedly connected to the outer surface of the liquid guiding element 22.

[0064] In this embodiment, the heating element is fixedly connected to the outer surface of the liquid guiding component 22, which allows the heat generated by the heating element to be efficiently transferred to the adsorbed e-liquid in the liquid guiding component 22, improving heat conduction efficiency and atomization efficiency. At the same time, the close fit between the heating element and the liquid guiding component 22 helps to ensure the uniformity of atomization temperature and avoids scorching problems caused by local overheating. Furthermore, the first heating element 31 and the second heating element 32 are respectively located on the outer surface of the liquid guiding component 22, reducing the processing difficulty.

[0065] In some embodiments, the first heating element 31 and the second heating element 32 are respectively disposed on the surfaces opposite to the liquid guide 22 and the liquid storage component 21, i.e., on the upper surface of the liquid guide 22. This allows the e-liquid in the liquid storage component 21 to reach the atomization area of ​​the heating element directly via the shortest path after being discharged through the liquid guide 22, resulting in faster liquid supply and significantly reduced liquid supply resistance. Simultaneously, this surface is close to the receiving portion of the liquid storage component 21, allowing the e-liquid to penetrate the liquid guide 22 under gravity during normal use, which helps maintain a continuous and stable liquid supply during high-frequency vaping and further mitigates the risk of dry burning due to insufficient liquid supply. Furthermore, this arrangement fully utilizes the installation space between the bottom of the liquid storage component 21 and the liquid guide 22, without occupying external airflow channels, making the internal structure of the device more compact. The heating element is close to the liquid inlet side of the liquid guide 22, concentrating heat transfer to the saturated area of ​​the e-liquid, resulting in less heat loss and higher energy utilization. It also reduces heat transfer to the outer casing, improving the temperature rise experience of the handheld part.

[0066] In some embodiments, the first heating element 31 and the second heating element 32 only cover a portion of the liquid guiding element 22 to ensure liquid guiding efficiency. Specifically, the liquid guiding element 22 is a cylindrical porous ceramic structure, and its surface is divided into a first heating area and a second heating area, which are respectively arc-shaped areas on the surface of the cylindrical porous ceramic structure; the first heating element 31 and the second heating element 32 are respectively arc-shaped and disposed on the corresponding first heating area and second heating area, and the first heating element 31 and the second heating element 32 are separated by a first opening 221.

[0067] It is understandable that the first heating area and the second heating area are the functional areas on the surface of the liquid guide 22 corresponding to the first heating element 31 and the second heating element 32, respectively; at the same time, the first opening 221 serves as a physical separation structure, dividing the surface of the liquid guide 22 into two mutually spaced heating areas.

[0068] In the above embodiments, the liquid guiding component 22, the first heating element 31, and the second heating element 32 are an integral structure.

[0069] In this embodiment, by integrating the liquid guiding component 22, the first heating element 31, and the second heating element 32 into a single structure, the assembly process of the device can be effectively simplified and production efficiency improved. At the same time, the single structure can ensure a tighter and more stable fit between the heating element and the liquid guiding component 22, avoiding problems such as poor contact or uneven heat transfer caused by assembly tolerances, and further ensuring the stability and consistency of the atomization effect.

[0070] In the above embodiments, the liquid guiding component 22, the first heating component 31, and the second heating component 32 are separate structures.

[0071] In this embodiment, the liquid guiding component 22 and the two heating elements are independent components, but are assembled into one unit through assembly. The liquid guiding component 22 and the heating elements can be manufactured separately, and each component can be replaced individually after reaching its service life without having to be discarded as a whole, reducing the user's maintenance costs. At the same time, the split structure also provides greater flexibility for the selection of materials and optimization of processes for different components, which is conducive to targeted improvements to each component according to actual needs.

[0072] In the above embodiments, the first heating element 31 and the second heating element 32 are respectively selected from one of the following: heating film, heating coating, heating wire, heating mesh, and heating stack.

[0073] In this embodiment, all of the above-described heating elements can be used to heat the liquid guiding component 22. The heating film and heating coating have a large contact area with the surface of the liquid guiding component 22, resulting in uniform heating; the heating wire has a high power density per unit area, leading to a fast heating rate; the heating mesh provides heating while also having pores that allow airflow to pass through; the heating stack has a multi-layered structure, enabling three-dimensional heating along the thickness direction. This embodiment does not impose a single limitation on the specific form of each heating element; it can be selected from the above types according to actual needs.

[0074] In the above embodiments, the aerosol generating device further includes: a controller, which is electrically connected to the first heating element 31 and the second heating element 32, for controlling the first heating element 31 and the second heating element 32 to heat up alternately.

[0075] In this embodiment, the controller is electrically connected to the first heating element 31 and the second heating element 32, respectively, and controls the two heating elements to alternately be powered on according to a set time sequence. During one time period, the first heating element 31 is powered on for heating while the second heating element 32 is powered off for cooling; in the next time period, their roles are reversed. During the period when either heating element is powered off, the corresponding liquid guiding part 22 area is in a non-heated state, and the aerosol forming matrix in this area is replenished by capillary action. This control method can effectively avoid dry burning and core scorching problems caused by insufficient liquid supply due to high-frequency continuous suction.

[0076] In the above embodiments, continue to refer to Figure 2 The aerosol generating device also includes: an airflow sensor 4, which is located in or connected to the spiral airflow channel and is used to detect the user's suction action; the controller is electrically connected to the airflow sensor 4, the first heating element 31 and the second heating element 32, and the controller is configured to control the heating sequence of the first heating element 31 and the second heating element 32 according to the detection signal of the airflow sensor 4.

[0077] In this embodiment, the airflow sensor 4 is located within or connected to the spiral airflow channel. When the user applies suction force at the suction port 11, a negative pressure is generated within the airflow channel. The airflow sensor 4 detects this change in negative pressure and outputs a detection signal. Upon receiving this signal, the controller determines that the user is suctioning and then outputs a heating control signal to the first heating element 31 and / or the second heating element 32. When the user stops suctioning, the negative pressure within the airflow channel disappears, the airflow sensor 4 no longer detects the airflow signal, and the controller cuts off the power supply to the heating elements. The starting and stopping of the heating elements are synchronized with the user's suction action.

[0078] The airflow sensor 4 can detect the airflow changes generated by the user's suction action in real time. The controller determines the user's suction status (such as starting suction, continuous suction, stopping suction, etc.) based on the detection signal, and dynamically adjusts the heating sequence of the first heating element 31 and the second heating element 32 based on the suction status, so that the alternation of the heating elements is more in line with the user's actual usage needs, thereby improving the level of intelligent control and user experience.

[0079] In the above embodiments, the controller is configured to control the first heating element 31 and the second heating element 32 to alternately heat up according to the number of suction ports and / or the suction duration of a single port.

[0080] In this embodiment, the controller counts the number of suction ports (i.e., the number of suctions) and / or monitors the duration of a single suction port. When the number of suction ports reaches a preset threshold or the duration of a single suction port exceeds a preset time, the controller controls the first heating element 31 and the second heating element 32 to switch alternately. This control strategy does not rely on an additional airflow sensor 4, is simple and reliable to implement, and can be adaptively adjusted according to the user's actual suction habits, balancing control accuracy and cost-effectiveness.

[0081] In the above embodiments, such as Figure 2 , Figure 6 As shown, the aerosol generating device further includes a preheating element 34, which is fixedly connected to the outer surface of the liquid guiding element 22 and is used to preheat the aerosol forming matrix adsorbed inside the liquid guiding element 22. Further, the preheating element 34 is configured to activate heating when a suction action is detected, and to deactivate heating when no suction action is detected again within a specified time.

[0082] In this embodiment, the preheating element 34 preheats the e-liquid in the liquid guiding element 22 before formal atomization, increasing the e-liquid temperature, reducing its viscosity, and enhancing its fluidity. This improves the response speed and atomization efficiency of the subsequent atomization process, especially for high-glycerol e-liquids with large vapor production, solving the problem of slow liquid guiding caused by the high viscosity of high-glycerol e-liquids. Simultaneously, the preheating element 34 only activates heating when a vaping action is detected and automatically shuts off when no vaping action is detected, avoiding unnecessary energy consumption and extending the overall battery life of the device. Specifically, the preheating element 34 is located on the bottom surface of the liquid guiding element 22. It preheats the e-liquid adsorbed at the bottom of the liquid guiding element 22, improving the fluidity of the e-liquid and accelerating its penetration into the areas where the first heating element 31 and the second heating element 32 are located. Furthermore, the preheating element 34 is spaced apart from the first heating element 31 and the second heating element 32, effectively preventing interference between preheating and atomization functions, making the preheating process more stable and reliable.

[0083] In the above embodiment, the heating temperature of the preheating element 34 is lower than the heating temperature of the first heating element 31 and / or the second heating element 32.

[0084] In this embodiment, the main function of the preheating element 34 is to preheat the e-liquid rather than fully atomize it. Therefore, its heating temperature is lower than that of the first heating element 31 and the second heating element 32 used for atomization. This temperature setting achieves the purpose of preheating the e-liquid and improving its fluidity, without causing the e-liquid to be overheated during the preheating stage, which could produce a burnt taste or harmful substances, thus ensuring the taste quality and safety of the final aerosol.

[0085] Specifically, the first heating element 31 and the second heating element 32 can reach a maximum temperature of 300°C to fully heat the atomized e-liquid. The preheating element is used to preheat the e-liquid to reduce its viscosity and thus increase the liquid conduction rate. The maximum temperature is 50°C, and atomization does not occur, thus avoiding ineffective waste of e-liquid.

[0086] In the above embodiments, the aerosol generating device further includes: an atomizing bottom cover 35, which is disposed on the side of the liquid guiding member 22 away from the liquid storage member 21. The atomizing bottom cover 35 includes three positive electrodes and one negative electrode. The first heating element 31, the second heating element 32 and the preheating element 34 are respectively electrically connected to the three positive electrodes one by one. The first heating element 31, the second heating element 32 and the preheating element 34 are connected to the negative electrode. The atomizing bottom cover 35 is provided with a first air inlet 351, which is connected to the air inlet end of the spiral airflow channel.

[0087] In this embodiment, by setting three positive electrodes that are electrically connected to the first heating element 31, the second heating element 32, and the preheating element 34 respectively, independent power supply and control of each heating / preheating component can be achieved; connecting them together to the negative electrode simplifies the circuit wiring. The first air inlet 351 on the atomizing bottom cover 35 provides an entrance for external air to enter the spiral airflow channel, ensuring unobstructed airflow path.

[0088] In addition, the atomizing bottom cover 35 is provided with a buckle 352, and the surface of the first housing 1 is provided with a corresponding slot 13. The atomizing bottom cover 35 is fixed to the slot 13 by the buckle 352. In addition, the top of the buckle 352 tightly presses against the bottom of the sealing sleeve 5, thereby ensuring that the outlet of the liquid storage component and the upper surface of the liquid guide component 22 are in close contact.

[0089] In the above embodiments, the aerosol generating device further includes: a base plate 12, which is fixedly connected to the first housing 1 and located on the side of the atomizing bottom cover 35 away from the liquid storage component 21. A second air inlet 121 is provided on the base plate 12, and the second air inlet 121 is sequentially connected to the first air inlet 351 and the air inlet end of the spiral airflow channel.

[0090] In this embodiment, the base plate 12 serves as the bottom structural component of the device, providing support and protection for the atomizing bottom cover 35 and internal components. The second air inlet 121 on the base plate 12 is sequentially connected to the first air inlet 351 and the air inlet end of the spiral airflow channel, forming a complete external air entry path. This allows air to enter the spiral airflow channel from the bottom of the device sequentially through the second air inlet 121 and the first air inlet 351, ensuring smooth airflow.

[0091] Furthermore, the surface of the base plate 12 is provided with an electrode structure that is electrically connected to the three positive electrodes and one negative electrode mentioned above, which realizes reliable electrical connection between the circuit board (or controller) and the first heating element 31, the second heating element 32 and the preheating element 34. Moreover, the electrode structure can make electrical contact synchronously when the base plate 12 and the atomizing bottom cover 35 are assembled, without the need for additional wiring or welding processes, which simplifies the electrical connection structure and improves assembly efficiency.

[0092] In the above embodiments, the aerosol generating device further includes: a second housing 6, which is at least partially sleeved on the outside of the first housing 1. The second housing 6 is provided with a third air inlet 641. The third air inlet 641 is connected to the air inlet end of the spiral airflow channel through the second air inlet 121 and the first air inlet 351 in sequence. The third air inlet 641 is located on the side wall of the second housing 6 and / or at the end of the second housing 6 away from the suction port 11.

[0093] In this embodiment, the second housing 6 is fitted over the first housing 1 as an outer decorative shell or protective shell, which not only enhances the overall aesthetics of the device, but also provides additional protection for the internal components. The third air inlet 641 provided on the second housing 6 offers a variety of air inlet position options: it can be located on the side wall or at the bottom away from the suction port 11 to adapt to different usage scenarios and air inlet requirements, while also increasing the flexibility of the air inlet design.

[0094] like Figure 2 , Figure 3 as well as Figure 5 As shown, the arrows indicate the flow path of the airflow. Specifically, the airflow enters the spiral airflow channel after passing through the third air inlet 641, the second air inlet 121, the first air inlet 351, and the notch channel 51, and spirals upward along the spiral airflow channel to the suction port 11.

[0095] In the above embodiment, the second housing 6 is further provided with a circuit board 61, a battery 62, and a charging interface 63, and the controller can be set on the circuit board 61. In addition, the bottom of the second housing 6 has an opening, and a housing bottom plate 64 or bottom plate 12 is provided at the opening to close the second housing 6. The bottom plate 12 is provided with a third air inlet 641 and a clearance opening adapted to the charging interface 63.

[0096] The following example illustrates the specific working process of the aerosol generating device in this embodiment, combined with... Figure 4 and Figure 5As shown, in its initial state, the e-liquid seeps into the guide component 22 through the reservoir 21. The user takes the first puff through the mouthpiece on the first housing 1. External airflow enters through the third air inlet 641 on the bottom cover of the housing bottom plate 64 and bottom plate 12, and then enters the spiral airflow channel through the air inlets of the bottom plate 12 and the atomizing bottom cover 35. At the same time, the airflow triggers the airflow sensor 4, which controls the first heating element 31 and the preheating element 34 to heat up through the chip on the controller. The e-liquid accelerates capillary action in the preheated guide component 22 and is quickly guided to the vicinity of the first heating element 31. The first heating element 31 heats up and atomizes the e-liquid, forming an atomized substance that is carried by the airflow. The e-liquid enters the spiral airway formed by the inner surface of the first housing 1 and the spiral baffle 33 and is finally inhaled by the user. During the spiral ascent, any condensed droplets formed due to cooling and some e-liquid droplets that have not yet been atomized will be separated from the less dense gas and thrown to the wall under the action of centrifugal force. Finally, they will slide down the wall of the spiral airflow channel under the action of gravity into the liquid guide 22, waiting for the next round of secondary atomization. Similarly, when the user takes a second puff, the second heating element 32 works while the first heating element 31 does not work, so that the liquid guide 22 near the first heating element 31 has enough time to introduce e-liquid and be wetted, thereby reducing the risk of dry burning.

[0097] In a second aspect, the present invention provides an aerosol generation system, including the aerosol generation apparatus of any of the above embodiments.

[0098] In this embodiment, the aerosol generation system integrates all the technical advantages of the aforementioned aerosol generation device: the alternating heating of the first heating element 31 and the second heating element 32 effectively avoids dry burning and burnt coil problems, extends the lifespan of the atomizing coil, and ensures consistent flavor; the spiral airflow channel fully cools and mixes the aerosol, resulting in a more delicate and smooth vapor entering the mouth; simultaneously, the intercepted condensate flows back along the wall of the spiral guide baffle 33 to the liquid guide element 22, realizing the recycling and secondary atomization of e-liquid; the two work together to form a virtuous cycle of liquid supply and atomization, achieving significant effects in preventing dry burning, improving flavor, and increasing e-liquid utilization. Furthermore, the inclusion of components such as the preheating element 34, controller, and airflow sensor 4 further enhances the system's intelligence and user experience.

[0099] Thirdly, the present invention provides a control method for an aerosol generating apparatus as described in any of the above embodiments, comprising the following steps:

[0100] Obtain the user's suction status information;

[0101] Based on the suction status information, the first heating element 31 and the second heating element 32 are controlled to alternately enter the working state.

[0102] In this embodiment, the control method provided by the present invention can effectively avoid dry burning and burnt coil problems, extend the service life of the atomizing coil, and ensure consistent taste.

[0103] Specifically, "vacuuming status information" refers to relevant information used to characterize the user's vacuuming behavior, including but not limited to vacuuming action signals, single-puff vacuuming duration, number of vacuuming puffs, or intervals between adjacent vacuuming puffs; "working status" refers to the heating element being in the powered-on heating state; "alternating heating" means that the first heating element 31 and the second heating element 32 are activated alternately according to a preset timing rule, with only one working at any given time, while the other is in a power-off resting state. When the user vapes, according to the preset alternation rule (such as alternating between odd and even numbers of vacuuming puffs, switching according to a single-puff vacuuming duration threshold, or alternating according to a fixed time period), one of the first heating element 31 and the second heating element 32 is selected to start heating to atomize the e-liquid in the liquid guide 22; the other heating element remains in a non-working state during this period, allowing the area of ​​the liquid guide 22 it covers to be fully wetted and the liquid supply restored. When the alternation condition is met (such as the next vacuuming puff arrives, a single-puff vacuuming puff reaches a preset duration, or a preset time period is reached), the other heating element is switched to work, and so on.

[0104] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. An aerosol generating device, characterized in that, include: The first housing has a suction port; A liquid storage assembly, disposed inside the first housing, includes: A liquid storage device has an opening and a receiving portion communicating with the opening, the opening being away from the suction port relative to the receiving portion, and the receiving portion constituting a space for containing e-liquid; A liquid guiding component is provided at the opening of the liquid storage component for discharging the e-liquid in the liquid storage component. The liquid guiding component has a first heating zone and a second heating zone that are spaced apart from each other. The atomizing component, disposed inside the first housing, includes: The first heating element and the second heating element are respectively connected to the first heating area and the second heating area, and are configured to heat alternately; A spiral flow guide baffle is disposed between the inner wall of the first housing and the outer wall of the liquid storage component. The spiral flow guide baffle, the inner wall of the first housing, and the outer wall of the liquid storage component define a spiral airflow channel. The spiral airflow channel has an inlet end and an outlet end, and the outlet end is connected to the suction port. The lower end of the spiral flow guide baffle extends to the area where the liquid guide component is located, and the wall surface of the spiral flow guide baffle forms a guide surface that guides the condensate to the liquid guide component.

2. The aerosol generating apparatus according to claim 1, characterized in that, The spiral guide baffle is spirally wound around the outer wall of the liquid storage component and is sealed to the inner wall of the first housing.

3. The aerosol generating apparatus according to claim 1, characterized in that, The liquid guiding component has a notch on its circumferential outer edge; the aerosol generating device further includes: A sealing sleeve is fitted onto the outer wall of the liquid guiding component, and the outer peripheral wall of the sealing sleeve is sealed against the inner wall of the first housing; the sealing sleeve is partially recessed into the notch corresponding to the notch position, thereby forming a notch channel for airflow to pass through on the circumferential outer edge of the sealing sleeve, and the notch channel is connected to the air inlet end of the spiral airflow channel.

4. The aerosol generating apparatus according to claim 1, characterized in that, The first heating element and the second heating element are respectively fixedly connected to the upper surface of the liquid guiding element.

5. The aerosol generating apparatus according to claim 1, characterized in that, Also includes: The controller is electrically connected to the first heating element and the second heating element, and is used to control the first heating element and the second heating element to heat up alternately.

6. The aerosol generating apparatus according to claim 5, characterized in that, Also includes: An airflow sensor, located within or connected to the spiral airflow channel, is used to detect the user's suction action. The controller is electrically connected to the airflow sensor, the first heating element, and the second heating element. The controller is configured to control the heating sequence of the first heating element and the second heating element according to the detection signal of the airflow sensor.

7. The aerosol generating apparatus according to claim 6, characterized in that, The controller is configured to control the first heating element and the second heating element to heat alternately based on the number of suction ports and / or the suction duration per port.

8. The aerosol generating apparatus according to claim 6, characterized in that, Also includes: A preheating component is fixedly connected to the bottom surface of the liquid guiding component and is used to preheat the aerosol matrix adsorbed inside the liquid guiding component. And / or, The preheating element is configured to start heating when a suction action is detected, and to turn off heating when no suction action is detected again within a specified time.

9. The aerosol generating apparatus according to claim 8, characterized in that, The heating temperature of the preheating element is lower than that of the first heating element and / or the second heating element.

10. The aerosol generating apparatus according to claim 8, characterized in that, Also includes: An atomizing bottom cover is disposed on the side of the liquid guiding component opposite to the liquid storage component. The atomizing bottom cover includes three positive electrodes and one negative electrode. The first heating element, the second heating element, and the preheating element are electrically connected to the three positive electrodes respectively. The first heating element, the second heating element, and the preheating element are all connected to the negative electrode. The atomizing bottom cover is provided with a first air inlet, which communicates with the air inlet end of the spiral airflow channel; and / or, The base plate is fixedly connected to the first housing and is located on the side of the atomizing bottom cover away from the liquid storage component. A second air inlet is provided on the base plate, and the second air inlet is sequentially connected to the first air inlet and the air inlet end of the spiral airflow channel.

11. The aerosol generating apparatus according to claim 10, characterized in that, Also includes: The second housing is at least partially fitted outside the first housing. The second housing is provided with a third air inlet. The third air inlet is connected to the air inlet end of the spiral airflow channel through the second air inlet and the first air inlet in sequence. The third air inlet is located on the side wall of the second housing and / or at the end of the second housing away from the suction port.

12. An aerosol generation system, characterized in that, The aerosol generating apparatus includes any one of claims 1 to 11.

13. A control method for an aerosol generating apparatus as described in any one of claims 1 to 11, characterized in that, Includes the following steps: Obtain the user's suction status information; Based on the suction status information, the first heating element and the second heating element are controlled to alternately enter the working state.

Images