An aerosol generating device based on dynamic thermal field compensation

Abstract

The patent discloses an aerosol generating device based on dynamic thermal field compensation, comprising: a heating body having a first temperature zone and a second temperature zone distributed around the same axis and fixed in the circumferential angle position; a driving mechanism for driving the heating body and / or smoking material to rotate relative to the axis; wherein the relative rotation is configured to, in any complete heating cycle, the smoking material at any circumferential position will pass through the thermal action of the first temperature zone and the thermal action of the second temperature zone respectively, thereby realizing circumferential uniform heating.

Description

Technical Field

[0001] This patent relates to the field of novel tobacco aerosol generation technology, specifically to an aerosol generation device based on dynamic thermal field compensation. Background Technology

[0002] In the field of heated non-combustible aerosol generation products, one of the core objectives is to achieve uniform and efficient heating of the smoke-generating substance (also known as the aerosol-generating matrix). Ideally, the entire smoke-generating substance should be heated synchronously and isothermally to the target temperature window for the volatilization of its effective components, thereby ensuring the instantaneous and full release of the aerosol, consistency of taste, and maximization of material utilization. However, current mainstream technologies struggle to achieve this ideal effect. The fundamental dilemma lies in the fact that the heating element and the smoke-generating substance typically maintain a fixed relative spatial position. This directly leads to a stable but uneven temperature field distribution during the heating process, as heat is transferred from the heat source to the substance. Specifically, the area in direct contact with or closest to the heating element (referred to as the "contact surface" or "near-heating surface") heats up first due to the shortest and strongest heat conduction or radiation path and maintains a higher temperature. Conversely, areas far from the heating element ("non-contact surface" or "far-heating surface") can only heat up slowly due to the limited thermal conductivity of the substance itself, resulting in a significant temperature lag. This inherent "position-dependent thermal field" leads to multiple chain defects: First, it causes asynchronous aerosol release. When the contact surface has already begun to produce a large amount of gas, the non-contact surface has not yet reached the effective temperature. And when the effective components on the contact surface are almost exhausted, the non-contact surface begins to release aerosols. This results in users experiencing uneven and fluctuating aerosol quality during a single inhalation. Second, in order to ensure that the non-contact surface material can be fully utilized, the heating time is often forced to be extended. However, this will cause the fully reacted contact surface area to be in a state of overheating for a long time, inevitably causing local carbonization, degradation, or even burning. This not only wastes energy but also generates harmful impurities such as aldehydes and a burnt smell, seriously damaging the inhalation experience and health safety.

[0003] To overcome the bottleneck of uniform heating, those skilled in the art have made numerous attempts, one representative improvement being "axial segmented heating technology." This method divides the heating element longitudinally into multiple independent heating segments (e.g., near-nozzle segment, middle segment, far-nozzle segment), and uses a control circuit to alternately or sequentially activate them according to a preset timing or power, thereby allowing the high-temperature zone to move along the axial direction of the fuming material. This method alleviates temperature unevenness along the axial length to some extent, attempting to simulate a moving heat wave. However, this technical approach has inherent and insurmountable limitations: it only solves the axial temperature gradient problem, but is completely powerless against circumferential / radial heating unevenness. On a fixed axial cross-section, the circumferential heat distribution of the heating element remains static and fixed, and the fuming material cannot receive equal heating at all points on the circumference of that cross-section. For example, if the heating element is sheet-like or partially arc-shaped, the side facing it will always be overheated, while the side facing away will always be underheated. Even for circumferentially heated elements, the circumferential temperature field cannot be perfectly uniform due to subtle differences in microstructure, material density, or assembly gaps. More significantly, the artificial movement of axial temperature introduces new problems: aerosols generated at different axial positions experience varying condensation and mixing states within the flow channel, resulting in fluctuations in the composition, concentration, and temperature of the aerosol inhaled by the user. This inherently interferes with the consistency and stability of the inhalation experience. Therefore, the industry urgently needs a novel solution that can fundamentally overcome the static thermal field distribution and achieve uniform heating of the smoke-generating material in three-dimensional space, particularly in the circumferential direction. Utility Model Content

[0004] The purpose of this patent is to provide an aerosol generation device based on dynamic thermal field compensation. By driving a heating element with differentiated temperature distribution to rotate relative to the fuming substance, the high-temperature zone dynamically and periodically sweeps across every part of the fuming substance in the circumferential direction, thereby achieving a balanced thermal effect on all parts of the fuming substance in the circumferential direction in the time dimension. This fundamentally solves the problems of uneven heating, local carbonization and asynchronous aerosol release caused by static thermal fields.

[0005] To solve the above-mentioned technical problems, this patent adopts the following technical solution:

[0006] An aerosol generating device based on dynamic thermal field compensation includes: a heating element having a first temperature zone and a second temperature zone distributed around the same axis and with fixed circumferential angular positions; and a driving mechanism for driving the heating element and / or the fuming substance to rotate relative to each other around the axis; wherein the relative rotation is configured such that, in any complete heating cycle, any circumferential position of the fuming substance will be subjected to the thermal effects of the first temperature zone and the second temperature zone respectively, thereby achieving uniform circumferential heating.

[0007] Furthermore, the first temperature zone is configured to exert a higher thermal effect on the fuming substance than the second temperature zone.

[0008] Furthermore, the first temperature zone and the second temperature zone do not overlap in the circumferential direction.

[0009] Furthermore, the relative rotation is either uniform rotation or step rotation.

[0010] Furthermore, the cumulative angle of relative rotation during a complete heating cycle is not less than 360°.

[0011] Furthermore, the circumferential angle of the first temperature zone accounts for between 1 / 6 and 2 / 3.

[0012] Furthermore, the heating element is a contact-type internal heater.

[0013] Furthermore, the first temperature zone is formed through direct contact with the fuming substance.

[0014] Furthermore, there is a gap between the second temperature zone and the fuming substance.

[0015] Furthermore, the drive mechanism is configured to drive the heating element to rotate while keeping the fuming material stationary.

[0016] Furthermore, the heating element is a sleeve-type heating element that is sleeved on the outside of the fuming substance.

[0017] Furthermore, there is one first temperature zone and one second temperature zone.

[0018] Furthermore, the first temperature zone and the second temperature zone complement each other to form a complete circle.

[0019] The heating element of this utility model can be implemented by selecting one or more of the following heating principles according to actual needs. These heating principles together constitute the protective basis for the thermal effect realization mode of this utility model.

[0020] Resistance heating mode: Resistance heating is one of the most mature and widely used heating technologies in this field. Its basic principle is to directly convert electrical energy into heat energy when current passes through a conductor with resistance (heating element). The system battery supplies power to the heating element, which heats up due to its own resistance. The heat is transferred to the fuming material in contact with or near it mainly through thermal conduction and thermal radiation. Contact heating is typically used. In this patent, the resistance heating element can be designed in various forms, thereby constituting the first and second temperature zones of this invention: For example, a central heating rod: specifically a needle-shaped or rod-shaped heating element, inserted into the interior of the fuming material during operation. Its first and second temperature zones can be achieved through regional differentiation design, for example: the first temperature zone is in direct contact with the fuming material, while the second temperature zone has a gap with the fuming material; or a higher power density is applied to the first temperature zone. Circumferential heating cylinder: a cylindrical heating element that surrounds the fuming material during operation. Its first and second temperature zones can be arranged in circumferential segments, achieving dynamic and balanced heating through relative rotation. Composite heating element: a combination of a central heating rod and a circumferential heating cylinder, each of which can be configured with different temperature zones to achieve a more three-dimensional heating effect.

[0021] Infrared radiation heating mode

[0022] Infrared heating is a non-contact heating method based on radiative heat transfer. Its principle is that when a heating element is energized, it emits infrared rays of a specific wavelength. These rays are absorbed by the fuming material, directly causing increased molecular vibration within the material, thereby generating heat. In this patent, the system drives an infrared heating element (such as carbon fiber, ceramic, or a specific alloy material) to generate far-infrared or mid-infrared radiation. The first temperature zone is configured as the primary infrared radiation zone, where radiant energy is concentrated; the second temperature zone can be an area with weaker radiation intensity, or a base / reflector zone that does not emit infrared rays at all. This radiation penetrates the air gap and is directly absorbed by the fuming material. Combined with relative rotation, this achieves rapid and uniform heating from the inside out.

[0023] Electromagnetic induction heating mode

[0024] Electromagnetic induction heating is a non-contact heating technology that utilizes the principle of electromagnetic induction (eddy current effect / hysteresis loss) to heat a metal sensor. An AC circuit within the system generates a high-frequency alternating magnetic field. A metal sensor placed in this magnetic field will induce eddy currents, thus rapidly heating up. In this patent, the heating element is the metal sensor. The first and second temperature zones can be achieved by arranging different densities of induction coils circumferentially on the sensor, or by using sensor segments of different materials / sizes. For example, a denser induction coil or a sensor that heats up more easily corresponds to the first temperature zone, thus forming a high-intensity thermal effect zone; the second temperature zone is a low-intensity thermal effect zone. Heat generated by the sensor is then transferred to adjacent fuming substances.

[0025] Specifically, based on the above-mentioned various heating modes, the methods for achieving the required "temperature difference" or "thermal effect intensity difference" between the first temperature zone and the second temperature zone in this utility model can be summarized into at least the following three categories:

[0026] Spatial positioning type: This method involves placing the first temperature zone in direct contact with the fuming substance (achieving strong heat conduction), while creating a physical gap between the second temperature zone and the fuming substance (allowing for weaker thermal interaction only through radiation or convection), thus forming a difference in thermal intensity. This method is commonly found in contact heating systems such as resistance heating.

[0027] Energy output type: The first and second temperature zones can maintain the same spatial relationship with the fuming material, but by applying a higher energy density (such as higher resistance, denser coils, and stronger infrared radiation) to the first temperature zone, it produces a stronger heating effect. This method is applicable to all heating modes.

[0028] Functional configuration type: The second temperature zone may not be an active heating element, but rather a base or bracket that provides support, connection, or heat dissipation. Its temperature originates from the heat conducted from the first temperature zone, therefore its own thermal intensity is naturally lower than that of the first temperature zone. This method is particularly common in infrared heating and some resistance heating structures, and is especially suitable for non-contact heating.

[0029] In a preferred embodiment, the smoke-generating substance is a smokeable article comprising an aerosol-forming matrix. Preferably, the aerosol-forming matrix comprises nicotine. In some preferred embodiments, the smoke-generating substance comprises tobacco. For example, the smoke-generating substance may be formed from a sheet of homogeneous tobacco. Alternatively or additionally, the smoke-generating substance may comprise a tobacco-free aerosol-forming material. For example, the material may be a sheet comprising nicotine salts and an aerosol-forming agent. The physical form of the smoke-generating substance may be one or more of powder, granules, pellets, fragments, strips, bars, or sheets, and may contain one or more of herbaceous plant leaves, tobacco leaves, tobacco ribs, flat tobacco, and homogeneous tobacco. In this patent, "aerosol-forming agent" is used to describe any suitable known compound or mixture of compounds that promotes aerosol formation in use and is substantially heat-resistant to degradation at the operating temperature of the aerosol-generating article. Suitable aerosol forming agents are known in the art and include, but are not limited to: polyols, such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols, such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate; and aliphatic esters of mono-, di-, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate. Preferred aerosol forming agents are polyols or mixtures thereof, such as propylene glycol, triethylene glycol, and 1,3-butanediol, and most preferably glycerol. The fuming substance may comprise a single aerosol forming agent. Alternatively, a combination of two or more aerosol forming agents may be included.

[0030] Preferably, the fuming substance has an aerosol forming agent content of more than 5% by dry weight. More preferably, it has an aerosol forming agent content between about 5% and about 30% by dry weight. In one specific embodiment, the fuming substance has an aerosol forming agent content of about 20% by dry weight.

[0031] This patent provides an aerosol generation device based on dynamic thermal field compensation, which has the following advantages compared to the prior art:

[0032] By rotating relative to each other, the effects of the originally spatially fixed "high-temperature zone" and "low-temperature zone" on the fuming substance are transformed into alternating "strong heating effect" and "weak heating effect" on each point in a time sequence. From the perspective of the entire heating cycle, the cumulative heat load received by any point in the circumference of the fuming substance tends to be uniform, thus achieving circumferential heating uniformity on a macroscopic scale. Furthermore, since there are no "hot spots" that remain continuously at high temperatures, no part of the fuming substance is overheated for an extended period. This fundamentally avoids pyrolysis, carbonization, and even burning caused by localized temperature accumulation, thereby greatly reducing the generation of harmful impurities such as aldehydes and phenols, as well as burnt flavors, resulting in a purer aerosol and a significantly improved taste. In addition, uniform heating at all points in the circumference means that the effective components of the fuming substance can be released synchronously at similar times. This makes the aerosol obtained in a single puff highly consistent in composition, concentration, and taste, providing a stable, consistent, and predictable puffing experience, solving the problems of "strong at the beginning and weak at the end" or "fluctuating taste" in existing technologies. Furthermore, by avoiding premature failure in localized areas (where carbonization ceases to produce aerosols) and insufficient heating in localized areas (where active ingredients are not fully released), a greater amount of aerosol is generated with the same filler volume, or the amount of smoke-generating substances is reduced while producing the same amount of aerosol, thus achieving higher energy efficiency and economic benefits. Finally, uniform heating means a more even temperature distribution within the heating element itself, avoiding problems such as oxidation, accelerated aging, or thermal stress concentration of the heating element material caused by localized overheating, thereby helping to extend the service life and reliability of the entire heating system.

[0033] In summary, this patent provides a fundamental solution for heating systems based on the principle of dynamic thermal field compensation. Its core lies in the synergistic effect of differentiated temperature zones with fixed spatial distribution and circumferential relative rotational motion, transforming the spatially uneven heating that is insurmountable in traditional technologies into a dynamically balanced thermal effect that can accumulate and average over time. Attached Figure Description

[0034] The above content of this patent and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution.

[0035] Figure 1 This is a schematic diagram of the heating system;

[0036] Figure 2 This is a schematic diagram of the drive mechanism and heating element assembly.

[0037] The reference numerals in the attached figures are explained as follows:

[0038] Heating element: 1

[0039] First temperature zone: 11

[0040] Second temperature zone: 12

[0041] Smoke-generating substances: 2

[0042] Transmission mechanism: 3

[0043] Drive mechanism: 4 Detailed Implementation

[0044] The detailed features and advantages of this patent are described below in the specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this patent and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this patent.

[0045] This specification also uses several compound terms to describe devices, components, equipment, etc. that include more than one function, or to assign additional functions to a corresponding device, component, equipment, etc. Those skilled in the art will understand that such compound terms can be implemented by a single or multiple devices, components, equipment, etc., as long as they are reasonable under the interpretation rules of this patent terminology.

[0046] It should be noted that in this specification, similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and interpreted in subsequent figures. In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined as having the following meanings:

[0047] The terms “comprising” or “having” have the same meaning as “containing”, and also include other forms of the term, such as the gerund and singular forms in English, meaning including but not limited to, and not intended to exclude, for example, other elements, components, integers or steps.

[0048] All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification and drawings of this patent, can directly and without doubt determine how the technical solution of this patent can be implemented.

[0049] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.

[0050] Those skilled in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, they would choose to refer to the relevant definitions in other documents published by the applicant before the filing date to reasonably interpret the terms; thirdly, they would choose the references cited in this patent to reasonably interpret the terms; and finally, they would choose to combine the technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by those skilled in the art to reasonably interpret the terms.

[0051] All references cited in this application are incorporated herein by way of quotation, to the extent that they do not contradict the disclosure herein. It will be apparent to those skilled in the art that products (apparatus, components, devices, compounds, compositions, materials, etc.) and methods (processes, steps, conditions, parameters, equipment, and test methods, equipment, etc.) not specifically described herein can be applied to the implementation of the patented creation fully disclosed herein without the need for excessive experimentation. This patent is intended to cover all functional equivalents known in the art of the methods, apparatus, apparatus components, materials, processes, and techniques specifically described herein. All cited references include:

[0052] The following publications are included: Marks' Standard Handbook for Mechanical Engineers (11th edition and other editions prior to the filing date of this application), published by McGraw-Hill, Inc.; DeGarmo's Materials and Processes in Manufacturing (13th edition and other editions prior to the filing date of this application), published by Wiley; Oberg's Machine Handbook (32nd edition and other editions prior to the filing date of this application), published by IndustrialPress Inc.; Cheng Daxian's Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), published by Chemical Industry Press; and Wen Bangchun's Modern Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), published by Machinery Industry Press.

[0053] See Figure 1This diagram illustrates a general schematic of a preferred embodiment of the heating system of this invention. The core of the system lies in the dynamic interaction between the heating element 1 and the smoke-generating substance 2. The heating element 1 is disposed inside the smoke-generating substance 2, with its axis coinciding with the axis of the smoke-generating substance 2. The driving mechanism 4 is connected to the heating element 1 via a transmission mechanism 3, and is used to drive the heating element 1 to rotate around its own axis. The smoke-generating substance 2 remains stationary during this process.

[0054] In this embodiment, the heating element 1 can be a contact electric heating element, such as an irregularly shaped heating rod made of materials with different resistivities. When the heating element 1 is a contact electric heating element, the first temperature zone 11 is configured to be in direct contact with the inner surface of the fuming substance 2. Due to its direct contact, the heat conduction efficiency is the highest, so this zone exhibits a higher thermal effect intensity on the fuming substance 2 during actual heating, becoming a high-temperature zone. The second temperature zone 12 is configured to have a physical gap (non-contact) with the inner surface of the fuming substance 2. The existence of this gap allows heat transfer to mainly occur through thermal radiation and limited convection, which is less efficient than direct contact, so this zone becomes a low-temperature zone. In this configuration, the physical radii of the first temperature zone 11 and the second temperature zone 12 are different, and the required difference in thermal effect intensity is naturally formed through the spatial positional relationship of "contact" and "non-contact".

[0055] In other embodiments, the heating element 1 can be a single, integral heating element with a regular shape (such as a cylinder). The first temperature zone 11 can be achieved by setting a higher power density in this region. Specific methods include, but are not limited to, engraving denser heating circuitry in this region, using materials with higher resistivity, or employing thinner cross-sectional dimensions. The second temperature zone 12 is a region with lower power density. In this configuration, even though the first temperature zone 11 and the second temperature zone 12 have the same physical radius and are both in direct contact with the fuming substance 2, due to the difference in power density, the first temperature zone 11 can still exert a stronger thermal effect on the fuming substance 2, forming a high-temperature zone.

[0056] In another embodiment, the heating element 1 can also be a non-contact heating element, such as an infrared radiator or an electromagnetic induction device. The first temperature zone 11 is an active heating element, configured to emit energy (such as infrared light or electromagnetic waves) towards the fuming substance 2, forming the main high-temperature radiation zone. The second temperature zone 12 may not be an active heating element, but rather a base or bracket that serves as a support and connection. Its temperature originates from the heat conducted from the first temperature zone 11, therefore its own temperature and the intensity of its thermal radiation to the fuming substance 2 are much lower than those of the first temperature zone 11, naturally forming a low-temperature zone.

[0057] The heating element 1 has a first temperature zone 11 and a second temperature zone 12 with fixed circumferential angles. To achieve uniform heating and precise heat distribution to all points around the fuming substance 2, the circumferential angle percentage of the first temperature zone 11 is designed to be less than 360° of the entire circumference. In a preferred embodiment of this invention, the circumferential angle percentage of the first temperature zone 11 is further limited to between 1 / 6 and 2 / 3 (i.e., 60° to 240°). This range has proven in practice to achieve the best balance between heating efficiency and temperature field uniformity. A percentage that is too small may result in an excessively long heating cycle; a percentage that is too large weakens the effect of dynamic compensation. Preferably, the circumferential angle percentage of the first temperature zone 11 is set to 1 / 3 (i.e., 120°).

[0058] See Figure 2 The diagram details the structure of the drive mechanism 4 and the heating element assembly. The drive mechanism 4 is preferably a micro motor. The transmission mechanism 3, as an intermediate link in power transmission, can be categorized into various forms depending on the system's spatial layout and power requirements: gear transmission: the motor output shaft connects to a small gear, which meshes with a large gear fixed to the heating element 1 to achieve speed reduction and torque increase; friction transmission: the motor directly drives a specific part of the heating element 1 to rotate via a friction wheel, resulting in a simple structure; belt drive or linkage drive: used when it is necessary to change the direction of power or to transmit power over long distances.

[0059] The drive mechanism 4 is configured to drive the heating element 1 and / or the fuming substance 2 to rotate relative to each other around their common axis. This relative rotation must have a cumulative angle of not less than 360° over a complete heating cycle. This is fundamental to ensuring that any circumferential point on the fuming substance 2 undergoes at least one complete cycle of "strong heating" and "weak heating". The relative rotation can be a continuous, uniform rotation for the smoothest temperature transition, or a stepped rotation for more precise site control.

[0060] Specifically, when the system uses step-type rotation, the single step angle can be intelligently correlated with the circumferential angle ratio of the first temperature zone 11. That is, when the ratio of the first temperature zone 11 is 120°, the single step angle of the step-type rotation is precisely controlled to 120°. In this way, after two step actions, the heating element rotates exactly one revolution, ensuring that the entire inner surface of the fuming material 2 is precisely scanned once by the first temperature zone 11 without omission or overlap, achieving an ideal uniform heating effect.

[0061] Optionally, this utility model also covers the option of setting multiple first temperature zones 11. For example, three first temperature zones 11 can be evenly arranged circumferentially, each with an angle percentage of 40°, so that their total percentage is 120° (1 / 3), which also falls within the preferred scope protected by this utility model. Its control logic is the same as that for a single temperature zone.

[0062] It is easy to understand that the second temperature zone 12 and the first temperature zone 11 are adjacent to and complementary to each other, forming the entire outer peripheral surface of the heating body 1.

[0063] System workflow:

[0064] When the system starts working, the heating element 1 is first energized for preheating, during which the drive mechanism 4 remains stationary. During the preheating phase, the circumferential area corresponding to the fuming substance 2 and the first temperature zone 11 rapidly heats up. After preheating is complete, the drive mechanism 4 starts, driving the heating element 1 to rotate at a constant speed or in steps via the transmission mechanism 3. Thus, the first temperature zone 11 and the second temperature zone 12 begin to periodically sweep across the inner surface of the fuming substance 2. Any point on the fuming substance 2 will alternately experience strong and weak heating phases, and throughout the entire heating cycle, the accumulated heat energy received reaches equilibrium, thereby achieving the ultimate objective of this invention.

[0065] It should be noted that the above is only the preferred embodiment of this utility model. Based on the same principles of the utility model, those skilled in the art can derive other equivalent variations:

[0066] For example, the heating element 1 can be configured as a sleeve that fits over the outside of the fuming substance 2, and its working principle is exactly the same as that of the internal heating element.

[0067] For example, by keeping the heating element 1 stationary and driving the hopper carrying the smoke-generating substance 2 to rotate through the drive mechanism, the core motion of "relative rotation" is also achieved.

[0068] For example, by swapping the thermal intensity relationship between the first temperature zone 11 and the second temperature zone 12, and adjusting the control logic, the same effect of dynamic thermal compensation can be achieved.

[0069] Any equivalent substitution or obvious modification that adopts the core concept of "fixed temperature zone + relative rotation" should be considered to fall within the protection scope of this utility model.

[0070] Industrial application

[0071] This patent provides an aerosol generation device based on dynamic thermal field compensation, which has the following advantages compared to the prior art:

[0072] By rotating relative to each other, the effects of the originally spatially fixed "high-temperature zone" and "low-temperature zone" on the fuming substance are transformed into alternating "strong heating effect" and "weak heating effect" on each point in a time sequence. From the perspective of the entire heating cycle, the cumulative heat load received by any point circumferentially on the fuming substance tends to be uniform, thus achieving circumferential heating uniformity on a macroscopic scale. Since there are no "hot spots" that remain continuously at high temperatures, no part of the fuming substance is overheated for an extended period. This fundamentally avoids the dry distillation, carbonization, and even burning phenomena caused by localized temperature accumulation, thereby greatly reducing the generation of harmful impurities such as aldehydes and phenols, as well as burnt flavors, resulting in a purer aerosol and a significantly improved taste. Uniform heating at all circumferential points means that the effective components of the fuming substance can be released synchronously at similar times. This makes the aerosol obtained from a single puff highly consistent in composition, concentration, and taste, providing a stable, consistent, and predictable puffing experience, solving the problems of "strong at the beginning and weak at the end" or "fluctuating taste" in existing technologies. Furthermore, by avoiding premature failure in localized areas (where carbonization ceases to produce aerosols) and insufficient heating in localized areas (where active ingredients are not fully released), a greater amount of aerosol is generated with the same filler volume, or the amount of smoke-generating substances is reduced while producing the same amount of aerosol, thus achieving higher energy efficiency and economic benefits. Uniform heating means a more even temperature distribution within the heating element itself, avoiding problems such as oxidation, accelerated aging, or thermal stress concentration of the heating element material caused by localized overheating, thereby helping to extend the service life and reliability of the entire heating system.

[0073] In summary, this patent provides a fundamental solution for heating systems based on the principle of dynamic thermal field compensation. Its core lies in the synergistic effect of differentiated temperature zones with fixed spatial distribution and circumferential relative rotational motion, transforming the spatially uneven heating that is insurmountable in traditional technologies into a dynamically balanced thermal effect that can accumulate and average over time.

Claims

1. An aerosol generation device based on dynamic thermal field compensation, characterized in that, include: The heating element has a first temperature zone and a second temperature zone distributed around the same axis and with a fixed circumferential angular position; A drive mechanism is used to drive the heating element and / or the smoke-generating substance to rotate relative to each other around the axis. The relative rotation is configured such that, within any complete heating cycle, any circumferential position of the fuming substance will be subjected to the thermal effects of the first temperature zone and the second temperature zone respectively, thereby achieving uniform circumferential heating.

2. The aerosol generation device based on dynamic thermal field compensation according to claim 1, characterized in that, The first temperature zone is configured to exert a higher thermal effect on the fuming substance than the second temperature zone.

3. The aerosol generation device based on dynamic thermal field compensation according to claim 2, characterized in that, The first temperature zone and the second temperature zone do not overlap in the circumferential direction.

4. The aerosol generation device based on dynamic thermal field compensation according to claim 3, characterized in that, The relative rotation is either uniform rotation or step rotation.

5. The aerosol generation device based on dynamic thermal field compensation according to claim 4, characterized in that, During the complete heating cycle, the cumulative angle of the relative rotation is not less than 360°.

6. The aerosol generation device based on dynamic thermal field compensation according to claim 5, characterized in that, The circumferential angle of the first temperature zone is between 1 / 6 and 2 / 3.

7. The aerosol generation device based on dynamic thermal field compensation according to claim 1, characterized in that, The heating element is a contact-type internal heater.

8. The aerosol generation device based on dynamic thermal field compensation according to claim 7, characterized in that, The first temperature zone is in direct contact with the fuming substance, while the second temperature zone has a gap with the fuming substance.

9. The aerosol generation device based on dynamic thermal field compensation according to any one of claims 1 to 8, characterized in that, The drive mechanism is configured to drive the heating element to rotate while the fuming substance remains stationary.

10. The aerosol generation device based on dynamic thermal field compensation according to claim 1, characterized in that, There is one of each of the first and second temperature zones, and they complement each other to form a complete circle.

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