CN113925221B

CN113925221B - Aerosol generating assembly, aerosol generating device, system and control method

Info

Publication number: CN113925221B
Application number: CN202111372312.1A
Authority: CN
Inventors: 李东建; 杜靖; 卜桂华
Original assignee: Shenzhen Smoore Technology Ltd; Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Smoore Technology Ltd; Shenzhen Maishi Technology Co Ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2025-01-17
Anticipated expiration: 2041-11-18
Also published as: CN113925221A

Abstract

The invention provides an aerosol generating assembly, an aerosol generating device, a system and a control method, wherein the aerosol generating assembly comprises an aerosol substrate part and a susceptor arranged on the aerosol substrate part, and the susceptor has a Curie temperature which is less than 400 ℃. The voltage standing wave ratio of the microwave component is changed through the phase change of the susceptor, so that the non-contact temperature control of the aerosol substrate part can be realized, a circuit detection part attached to the aerosol substrate part is not required to be arranged, the circuit detection part is prevented from being stained, and the cleaning workload of a user on the aerosol generating device is reduced.

Description

Aerosol generating assembly, aerosol generating device, system and control method

Technical Field

The invention belongs to the technical field of electronic smoking sets, and particularly relates to an aerosol generating assembly, an aerosol generating device, an aerosol generating system and a control method of the aerosol generating system.

Background

A Heat Not Burn (HNB) device is an electronic device for a system that heats but does Not burn an aerosol-generating substrate (treated plant leaf product). The heating device heats the aerosol-generating substrate to a temperature at which the aerosol-generating substrate can generate aerosol but is insufficient for combustion, and can enable the aerosol-generating substrate to generate aerosol required by a user without combustion.

The heating non-combustion apparatus in the market at present mainly adopts a resistance heating mode, namely, a central heating plate, a heating needle and the like are utilized to be inserted into an aerosol generating substrate from the center of the aerosol generating substrate for heating. The heating plate of HNB appliance has the advantages of easy generation of dirt in the aerosol generating substrate extractor and the heating plate base, difficult cleaning, and partial pyrolysis of the local aerosol generating substrate contacting the heating body, thereby releasing substances harmful to human body. Therefore, the microwave heating technology gradually replaces the resistance heating mode to become a new heating mode. The microwave heating technology has the characteristics of high efficiency, timeliness, selectivity and no delay in heating, and only has the heating effect on substances with specific dielectric characteristics. The application advantages of microwave heating and atomization are that a, microwave heating is radiation heating and non-heat conduction, and the instant drawing and instant stopping can be realized, b, no heating sheet exists, so that the problems of sheet breakage and heating sheet cleaning do not exist, c, the aerosol generating substrate has high utilization rate and high taste consistency, and the taste is more similar to cigarettes.

However, in order to avoid the generation of harmful substances due to the excessive temperature of the aerosol substrate, it is necessary to provide a detection means for detecting the temperature of the aerosol substrate in the heating non-combustion device, and when the detection means is in contact with the aerosol substrate, volatile gas or aerosol substrate adheres to the surface of the detection means, which makes cleaning difficult and reduces the detection accuracy of the detection means.

Disclosure of Invention

The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

In view of this, in a first aspect, the present invention provides an aerosol-generating assembly comprising an aerosol-substrate portion, a susceptor disposed on the aerosol-substrate portion, the susceptor having a curie temperature of less than 400 degrees celsius.

The aerosol-generating assembly provided by the invention, the susceptor is disposed within the aerosol-substrate portion, the temperature of the susceptor increasing as the temperature of the aerosol-substrate portion increases.

Specifically, the microwave assembly is provided with a control circuit and a detection piece, and the detection piece can acquire the voltage standing wave ratio of a microwave transmission line in the microwave assembly. The magnitude of the voltage standing wave ratio can represent the impedance matching condition between the microwave component and the aerosol generating component. When the impedance is not matched, the voltage standing wave ratio is larger. When the impedances match, the value of the voltage standing wave ratio is small.

When the temperature of the susceptor reaches the Curie temperature of the susceptor, the susceptor can generate phase change, and the corresponding change of the susceptor can cause impedance mismatch, so that the voltage standing wave ratio is increased. When the voltage standing wave ratio is larger than the set value, the fact that the temperature of the current aerosol substrate part reaches the set temperature is indicated, the temperature of the aerosol substrate part is higher at the moment, and in order to avoid harmful substances generated by continuously increasing the temperature of the aerosol substrate part, the control circuit can control the microwave component to reduce the output power or stop working at the moment, so that the temperature control function of the aerosol generating component is realized. When the temperature of the aerosol substrate part is lower than the set temperature, the susceptor can restore to the original phase, the voltage standing wave ratio is reduced, which means that the temperature of the aerosol substrate part is reduced currently, and the microwave component can be controlled to continuously heat the aerosol substrate part.

The voltage standing wave ratio of the microwave component is changed through the corresponding change of the susceptor, so that the non-contact temperature control of the aerosol substrate part can be realized, a circuit detection part attached to the aerosol substrate part is not required to be arranged, the circuit detection part is prevented from being stained, and the cleaning workload of a user on the aerosol generating device is reduced. Moreover, by means of controlling the temperature of the aerosol substrate part through corresponding change of the receptor, harmful substances generated in the aerosol substrate part can be avoided, and safety of a user in the use process is improved.

In one possible application, the susceptor is capable of changing the resonant frequency within the resonant cavity.

By providing a susceptor in the aerosol matrix portion, the resonance frequency in the resonance cavity is brought within a set range. Before the microwave assembly is controlled to carry out microwave heating on the aerosol generating assembly, the microwave assembly is subjected to sweep frequency operation so as to determine an optimal operation frequency point of the microwave assembly, and the optimal operation frequency point is related to the resonance frequency in the atomization cavity, so that the type of the aerosol generating assembly can be identified, and a proper operation mode is configured according to the type of the aerosol generating assembly so as to heat an aerosol generating substrate in the aerosol generating assembly, and the atomization efficiency of the aerosol generating device is improved. The aerosol generating device can identify the types of aerosol generating matrixes in the aerosol generating assembly, and corresponding heating modes are set according to different types, so that the atomization effect of the aerosol generating device on different types of aerosol generating matrixes is improved.

It will be appreciated that by providing the susceptor in the aerosol-substrate portion, the identification of the aerosol-generating assembly by the aerosol-generating device is achieved, and therefore the aerosol-generating assembly can be selectively placed within the set resonance frequency range by the identification means, and only the aerosol-generating assembly within the set resonance frequency range can be microwaved by the aerosol-generating device, thereby achieving the anti-counterfeiting effect of the aerosol-generating assembly.

In addition, the aerosol generating assembly according to the above technical solution provided by the present invention may further have the following additional technical features:

In one possible design, the change in permeability and/or permittivity of the susceptor is greater than a set value when the susceptor reaches the curie temperature.

In this design, when the susceptor reaches a distance temperature, the susceptor will change in phase, and at this time, the magnetic permeability and/or the dielectric constant of the susceptor will change greatly, and this greatly change will affect the voltage standing wave ratio of the microwave transmission line in the microwave assembly, so that the function of controlling the temperature of the aerosol substrate portion can be achieved.

In one possible design, the susceptor comprises a ferroelectric susceptor or a piezoelectric susceptor.

In the design, when the temperature of the aerosol substrate part reaches the Curie temperature of the ferroelectric receptor and/or the piezoelectric receptor during the heating process of the aerosol substrate part by the microwave component, the lattice structure of the receptor changes, the polarization disappears, the dielectric constant of the receptor is obviously increased, a maximum value is shown, and the temperature sensitivity is high, so that a relatively obvious impedance mismatch phenomenon in an aerosol generating system can be caused. This phase change indicates that the temperature of the current aerosol substrate portion has been above the set temperature and that the microwave assembly may automatically cease heating the aerosol substrate portion when a phase change induced impedance mismatch associated with the curie temperature of the susceptor is detected. After stopping the heating and cooling down at the aerosol substrate portion until below the curie temperature of the susceptor, at which point the susceptor resumes its ferroelectric/piezoelectrical properties. The control circuit of the microwave component can detect that the impedance mismatch caused by the phase change is obviously reduced, and the microwave component can be started again to heat the aerosol substrate. The heating temperature of the aerosol matrix part can be controlled through repeated starting and stopping of the microwave component, and the non-contact temperature control of the aerosol matrix part is realized.

Ferroelectric receptors and piezoreceptors have a higher resistivity, a higher dielectric constant and a lower dielectric loss. The susceptor can not absorb microwaves in a transitional way, so that microwaves generated by the microwave component can act on the aerosol substrate part, and the influence of the susceptor on the atomization effect of the aerosol substrate part is avoided.

In one possible design, the susceptors include ferroelectric/piezoceramic susceptors of perovskite structure, and/or ferroelectric/piezofilm susceptors, and/or ceramic thermistor susceptors.

In one possible design, the susceptor includes at least one of a bismuth sodium titanate susceptor, a bismuth barium niobate susceptor, a barium titanate susceptor, a sodium niobate susceptor, a niobium titanate susceptor, a barium strontium titanate susceptor, a niobate susceptor. In one possible design, the susceptor extends along the length of the aerosol substrate portion.

In this design, it is defined that the length direction of the susceptor is arranged in the same direction as the length direction of the aerosol substrate portion. The effect of the microwaves on the aerosol substrate is different due to the length of the aerosol substrate, the heating effect of the microwaves on the side of the aerosol substrate facing the resonant cavity is relatively good, the heating effect of the microwaves on the side of the aerosol substrate facing away from the resonant cavity is relatively poor, and therefore the heating effect of the microwaves on the aerosol substrate is different, and the temperatures of the aerosol substrate are different. The susceptor extends along the length direction of the aerosol substrate part, so that the susceptor can detect the temperatures of a plurality of positions of the aerosol substrate part, the accuracy of temperature detection is improved, the area with overhigh temperature is not easy to appear on the aerosol substrate part, harmful substances are effectively avoided from being generated on the aerosol substrate part, and the safety of a user in using an aerosol generating system is improved.

In one possible design, the aerosol substrate portion comprises an aerosol substrate segment, the length of the susceptor being less than or equal to the length of the aerosol substrate segment.

In this design, the relation between the length of the susceptor and the length of the aerosol substrate segments is defined. Since the susceptor extends in the length direction of the aerosol substrate portion and the length of the susceptor is smaller than the length of the aerosol substrate portion, the susceptor does not protrude out of the aerosol substrate section.

The aerosol matrix portion also typically includes a hollow section, a cool down section and a filter section, the hollow section being positioned between the cool down section and the aerosol matrix section, the cool down section being positioned between the hollow section and the filter section. The hollow section is used for buffering aerosol for aerosol can flow gently, and the hollow section still links to each other with the cooling section, and the cooling section is used for cooling the aerosol, thereby improves user's comfort level, and the filter tip section links to each other with the cooling section, and the filter tip section is used for filtering aerosol. The aerosol generating substrate part is also provided with a shell, the shell is used for wrapping the aerosol substrate section, the hollow section, the cooling section and the filter tip section, and the shell is one of a cardboard tube, a polylactic acid material tube, a protein material tube, a vegetable gum material tube or a cellulose derivative material tube with supporting function.

If the susceptor stretches out of the aerosol substrate section, the stretched part detection cannot play a role in detecting the temperature, so that the susceptor does not stretch out of the aerosol substrate section, the accuracy in detecting the temperature of the aerosol substrate section can be ensured on the basis of shortening the length of the susceptor as much as possible, and the material waste caused by longer and larger susceptors is avoided.

In one possible design, the number of susceptors is at least one.

In this design, the effect of the microwaves on the aerosol substrate portion varies, so the effect of the microwaves on the heating of the aerosol substrate portion varies, and therefore the temperature of the aerosol substrate portion varies. Through increasing the quantity of the receptors, a plurality of positions on the aerosol substrate part can be detected, the accuracy of temperature detection is improved, the area with overhigh temperature is not easy to appear on the aerosol substrate part is ensured, harmful substances are effectively avoided from being generated on the aerosol substrate part, and the safety of a user in using an aerosol generating system is improved.

In one possible design, the number of susceptors is at least two, the at least two susceptors being spaced apart along the length of the aerosol substrate portion.

In this design, the effect of the microwaves on the aerosol substrate portion is different due to the length of the aerosol substrate portion, the heating effect of the microwaves on the side of the aerosol substrate portion facing the resonant cavity is relatively good, the heating effect of the microwaves on the side of the aerosol substrate portion facing away from the resonant cavity is relatively poor, and therefore the heating effect of the microwaves on the aerosol substrate portion is different, and therefore the temperatures of the aerosol substrate portion are also different. At least two receptors are extended at intervals along the length direction of the aerosol substrate part, so that the receptors can detect the temperatures of a plurality of positions of the aerosol substrate part, the accuracy of temperature detection is improved, the area with overhigh temperature is not easy to appear on the aerosol substrate part, harmful substances are effectively avoided from being generated on the aerosol substrate part, and the safety of a user in using an aerosol generating system is improved.

The two adjacent aerosol substrate parts are arranged at intervals, and because the temperature difference between the positions, which are close to each other, on the aerosol substrate parts is small, two susceptors do not need to be arranged at the positions, which are close to each other, and the number of the susceptors can be reduced, so that the material consumption can be saved.

In one possible design, the shape of the susceptor includes one or more of a prism, a pyramid, a cone, a sphere.

In the design, the shape of the susceptor can be reasonably set according to actual requirements in the production process of the susceptor. The shape of the susceptor includes, but is not limited to, a prism, a pyramid, a cone, a sphere.

In a second aspect, the invention provides an aerosol generating device, which is used for heating an aerosol generating component in the first aspect, and comprises a resonant cavity, a microwave component and a control circuit, wherein the aerosol generating component can extend into the resonant cavity, the microwave component is used for feeding microwaves into the resonant cavity, the microwave component is provided with a detection part and the control circuit, the detection part is used for acquiring the voltage standing wave ratio of the microwave component, the control circuit judges whether a susceptor in the aerosol generating component reaches the Curie temperature according to the voltage standing wave ratio, and the output power of the microwave component is reduced or the microwave component is turned off based on the fact that the susceptor reaches the Curie temperature.

The microwave assembly is capable of generating microwaves and feeding the microwaves into the cavity, which can act on the aerosol matrix portion to generate an aerosol. The cavity walls of the resonator are made of a metallic material, and illustratively, the cavity walls of the resonator are made of copper, aluminum, iron, or the like, or an alloy thereof.

The control circuit can obtain the voltage standing wave ratio. The magnitude of the voltage standing wave ratio can be indicative of the impedance match between the microwave component and the aerosol generating component. When the impedance is not matched, the voltage standing wave ratio is larger. When the impedances match, the value of the voltage standing wave ratio is small.

The voltage standing wave ratio of the microwave component is changed through the corresponding change of the susceptor, so that the non-contact temperature control of the aerosol substrate part can be realized, a circuit detection part attached to the aerosol substrate part is not required to be arranged, the circuit detection part is prevented from being stained, and the cleaning workload of a user on the aerosol generating device is reduced. Moreover, by detecting the temperature of the aerosol substrate part through the corresponding change of the receptor, the accuracy of the detection process can be improved, harmful substances are prevented from being generated in the aerosol substrate part, and the safety of a user in the use process is improved.

In one possible design, the aerosol generating device further comprises a housing, the resonant cavity being disposed within the housing, and a resonant post, a first end of the resonant post being connected to a cavity bottom wall of the resonant cavity, and a second end of the resonant post being disposed opposite the aerosol generating assembly.

In this design, the resonant pillars are mounted in the atomizing chamber, the diameter of the resonant pillars being smaller than the diameter of the atomizing chamber, so that a gap is provided between the outer side wall of the atomizing chamber and the inner side wall of the atomizing chamber, and microwave energy is conducted in this partial spacing. The resonating posts can be made of a metallic material, for example, copper, aluminum, iron, or the like, or an alloy thereof. The resonance column is used for transmitting microwaves and improving the transmission rate of the microwaves, the microwaves are not easy to attenuate when being transmitted in the atomization cavity, and the effect of the microwaves on the aerosol-generating substrate is improved, so that the microwaves can efficiently and rapidly act on the aerosol-generating substrate, and the use requirements of users are met.

In one possible design, the housing includes a first body and a second body detachably connected to the first body, the first body and the second body enclosing to form a resonant cavity.

In this design, limited the connected mode of first body and second body, first body can dismantle in the second body, when need clear up aerosol generating device to aerosol generating device after using for a long time, can dismantle first body in the second body to open the opening of resonant cavity, can be convenient for clear up the resonant cavity alone, improve the clearance convenience to aerosol generating device, and then improve the user to aerosol generating device's convenience of use. In addition, when the aerosol generating device is damaged, the sub-parts in the aerosol generating device can be replaced independently, so that the maintenance cost of the aerosol generating device is reduced.

For example, mounting holes may be provided in the first and second bodies, through which the locking member passes, thereby mounting the mount to the bodies.

In one possible design, a mounting seat is provided on the first body or the second body, the mounting seat being provided with a receiving cavity, and a portion of the aerosol substrate portion being received in the receiving portion.

In the design, the mounting seat is used for spacing the aerosol substrate part and the resonance column, so that the resonance column is prevented from being contacted with the aerosol substrate, dirt on the resonance column is avoided, and the cleaning workload on the resonance column is reduced.

In one possible design, the cavity includes a strong field region where the susceptor in the aerosol-generating assembly is located, the strong field region being the strong field region of microwaves that the microwave assembly feeds into the cavity to form microwaves.

In this design, the microwave assembly feeds microwaves into the atomizing chamber, where they are conducted, and the atomizing chamber is formed with a strong field region and a weak field region, which are affected by the microwave transmission characteristics. The aerosol generating substrate in the body is arranged in the strong field region of the atomizing cavity, so that the microwave heating atomizing effect of the aerosol generating substrate can be ensured. Therefore, by disposing the identification member also in the strong field region, it can be ensured that the identification member can exert an influence on the resonance frequency of the aerosol-generating assembly.

In a third aspect, the invention provides an aerosol-generating system comprising an aerosol-generating assembly as in any of the possibilities of the first aspect, and an aerosol-generating device as in any of the possible designs of the second aspect, a portion of the aerosol-generating assembly being insertable into the aerosol-generating device. The aerosol-generating system thus has all of the advantages of the aerosol-generating assembly set forth in any of the possible designs described above, as well as all of the advantages of the aerosol-generating device set forth in any of the possible designs described above, and will not be described in detail herein.

In a fourth aspect, the invention provides a control method of an aerosol generating system, the aerosol generating system comprises an aerosol generating component and an aerosol generating device, the aerosol generating component comprises an aerosol substrate part and a susceptor, the susceptor is arranged on the aerosol substrate part, the aerosol generating device comprises a resonant cavity and a microwave component, the microwave component is used for feeding microwaves into the resonant cavity, the control method comprises the steps of controlling the microwave component to sweep in a microwave frequency range to find target microwave frequency in the microwave frequency range, controlling the microwave component to feed microwaves into the resonant cavity at the target microwave frequency, acquiring a voltage standing wave ratio of the microwave component, determining the temperature of the susceptor according to the voltage standing wave ratio, and determining the working state of the microwave component according to the temperature of the susceptor.

The present application provides a control method for controlling an aerosol generating system, and microwaves for heating an aerosol substrate portion, wherein the aerosol substrate portion may be a solid aerosol generating substrate or a liquid aerosol generating substrate. The aerosol generating device is internally provided with a resonant cavity for accommodating the aerosol matrix part, the microwave component can feed microwaves into the resonant cavity, and the aerosol matrix part is heated and atomized under the action of the microwaves.

And the aerosol generating device receives the atomization starting instruction and controls the microwave assembly to perform sweep frequency operation in a microwave frequency range. Specifically, the microwave assembly is controlled to feed microwaves into the resonant cavity in turn according to each microwave frequency within the microwave frequency range. And determining a target microwave frequency in the microwave frequency range according to the change of the parameters in the atomizing cavity, wherein the target microwave frequency is the optimal frequency point of the operation of the microwave component in the current resonant cavity state, namely the microwave frequency with the maximum microwave absorption capacity in the resonant cavity. The aerosol substrate is heated by microwaves of the target microwave frequency, which can contribute to an improvement in the atomization effect of the aerosol substrate.

In one possible design, determining the operating state of the microwave assembly based on the temperature of the susceptor includes reducing the output power of the microwave assembly or shutting down the microwave assembly based on the temperature of the susceptor reaching the curie temperature, the temperature of the susceptor being less than the curie temperature, and controlling the microwave assembly to operate at the rated power.

In the design, when the susceptor reaches the Curie temperature, the temperature of the aerosol substrate part is higher at the moment, and in order to avoid harmful substances generated by the continuous rising of the temperature of the aerosol substrate part, the control circuit can control the microwave component to reduce the output power or stop working, so that the temperature control function of the aerosol generating component is realized. When the temperature of the susceptor is lower than the curie temperature, the susceptor can restore to the original phase, the voltage standing wave ratio is reduced, which means that the temperature of the current aerosol substrate part is already reduced, and the microwave component can be controlled to continuously heat the aerosol substrate part.

In one possible design, after searching the target microwave frequency in the microwave frequency range, the method further comprises the steps of determining the matching state of the aerosol generating component and the microwave component according to the numerical relation between the target microwave frequency and the set frequency, controlling the microwave component to feed microwaves to the resonant cavity at the target microwave frequency based on the matching state of the aerosol generating component and the microwave component, controlling the microwave component to stop running based on the non-matching state of the aerosol generating component and the microwave component, and outputting prompt information.

In this design, according to the numerical relation between the target microwave frequency and the set frequency range, it is possible to determine the matching state of the aerosol generating assembly and the microwave assembly, that is, whether the aerosol generating assembly matches the microwave assembly. And controlling the operation of the microwave assembly according to the matching state of the aerosol generating assembly and the microwave assembly.

The detecting member may change the microwave frequency of the resonant cavity, when the aerosol generating assembly having different detecting members is assembled to the aerosol generating device, the resonant frequency of the resonant cavity is different, and when the microwave frequency is the same as the resonant frequency of the current resonant cavity, the heating effect on the aerosol substrate portion is the best, and the microwave frequency at this time is the target microwave frequency.

After the material of the detection piece serving as the genuine product is determined, the resonant frequency of the resonant cavity is also determined, and the microwave frequency equal to the resonant frequency is the set frequency.

Comparing the current target microwave frequency with the set frequency range, and when the difference between the target microwave frequency and the set frequency is larger than the set value, considering that the aerosol generating assembly is not matched with the microwave assembly, namely the current aerosol generating assembly is a counterfeit product.

When the difference between the target microwave frequency and the set frequency is smaller than the set value, the difference between the target microwave frequency and the set frequency is smaller, and the aerosol generating assembly and the microwave assembly are considered to be matched, namely the current aerosol generating assembly is a genuine product.

The anti-counterfeiting function of the aerosol generating assembly is realized by comparing the target microwave frequency with the set frequency, so that the legal rights and interests of market order, factories and consumers are protected.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 shows one of the structural schematic diagrams of an aerosol-generating assembly in an embodiment of the invention;

FIG. 2 shows a second schematic structural view of an aerosol-generating assembly in an embodiment of the invention;

FIG. 3 shows a third schematic structural view of an aerosol-generating assembly in accordance with an embodiment of the present invention;

FIG. 4 shows a fourth schematic structural view of an aerosol-generating assembly in an embodiment of the invention;

FIG. 5 shows a schematic structural diagram of an aerosol generating system in an embodiment of the invention;

Fig. 6 shows a flow chart of a method of controlling an aerosol generating system in an embodiment of the invention.

The correspondence between the reference numerals and the component names in fig. 1 to 5 is:

100 aerosol generating device, 110 resonant cavity, 120 microwave component, 130 housing, 131 first body, 132 second body, 133 mount pad, 140 resonant column, 200 aerosol generating component, 210 aerosol matrix section, 211 aerosol matrix section, 212 hollow section, 213 cool down section, 214 filter section, 220 susceptor.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

An aerosol-generating assembly, an aerosol-generating device, an aerosol-generating system, and a method of controlling an aerosol-generating system provided according to some embodiments of the invention are described below with reference to fig. 1-6.

In some embodiments of the invention, as shown in connection with fig. 1, 2 and 5, an aerosol generating assembly is presented comprising an aerosol substrate portion 210 and a susceptor 220, the susceptor 220 being provided on the aerosol substrate portion 210, the susceptor 220 having a curie temperature of less than 400 degrees celsius.

The susceptor 220 is arranged within the aerosol substrate portion 210, and when the temperature of the aerosol substrate portion 210 increases, the temperature of the susceptor 220 also increases.

Specifically, the microwave assembly 120 is provided with a control circuit capable of acquiring a voltage standing wave ratio. The magnitude of the voltage standing wave ratio can be indicative of the impedance match between the microwave assembly 120 and the aerosol generating assembly 200. When the impedance is not matched, the voltage standing wave ratio is larger. When the impedances match, the value of the voltage standing wave ratio is small.

When the temperature of the susceptor 220 reaches its curie temperature, the susceptor 220 itself can undergo a phase change, and the corresponding change in the susceptor 220 can cause an impedance mismatch phenomenon, thereby increasing the voltage standing wave ratio. When the voltage standing wave ratio is greater than the set value, it indicates that the temperature of the aerosol substrate portion 210 has reached the set temperature, and at this time, the temperature of the aerosol substrate portion 210 is higher, so as to avoid harmful substances generated by continuously increasing the temperature of the aerosol substrate portion 210, and at this time, the control circuit may control the microwave assembly to reduce the output power or stop working, so as to realize the function of controlling the temperature of the aerosol generating assembly. When the temperature of the aerosol substrate portion 210 is below the set temperature, the susceptor 220 may revert to the original phase, the voltage standing wave ratio decreases, indicating that the temperature of the current aerosol substrate portion 210 has decreased, and the microwave assembly 120 may be controlled to continue heating the aerosol substrate portion 210.

By changing the voltage standing wave ratio of the microwave assembly 120 through corresponding changes of the susceptor 220, non-contact temperature control of the aerosol substrate portion 210 can be realized, a circuit detection component attached to the aerosol substrate portion 210 is not required to be arranged, dirt of the circuit detection component is avoided, the cleaning workload of a user on the aerosol generating device 100 is reduced, and the service life of the aerosol generating device 100 is prolonged. Because the aerosol generating assembly 200 is disposable, it is not cleaned and is disposable. Moreover, by detecting the temperature of the aerosol substrate portion 210 by corresponding changes of the susceptor 220, the accuracy of the detection process can be improved, and the generation of harmful substances by the aerosol substrate portion 210 is avoided, which is beneficial to improving the safety of the user in the use process.

In one possible application, the susceptor 220 is capable of changing the resonant frequency within the resonant cavity 110.

By providing the susceptor 220 in the aerosol matrix portion 210, the resonance frequency in the resonator 110 is brought within a set range. Before the microwave assembly 120 is controlled to perform microwave heating on the aerosol-generating assembly 200, the microwave assembly 120 performs sweep operation to determine an optimal operating frequency point of the microwave assembly 120, where the optimal operating frequency point is related to a resonant frequency in the aerosol-generating assembly 200, so that a type of the aerosol-generating assembly 200 can be identified, and an appropriate operating mode can be configured according to the type of the aerosol-generating assembly 200 to heat an aerosol-generating substrate in the aerosol-generating assembly 200, thereby improving the atomization efficiency of the aerosol-generating device 100. The aerosol-generating device 100 is enabled to identify the types of aerosol-generating substrates in the aerosol-generating assembly 200, and corresponding heating modes are set according to the types, so that the atomization effect of the aerosol-generating device 100 on the aerosol-generating substrates of different types is improved.

It will be appreciated that by providing the susceptor 220 in the aerosol-substrate portion 210, the identification of the aerosol-generating assembly 200 by the aerosol-generating device 100 is achieved, and therefore, the aerosol-generating assembly 200 can be selectively placed within a set resonance frequency range by the identification means, and only the aerosol-generating assembly 200 within the set resonance frequency range can be microwaved by the aerosol-generating device 100, thereby achieving the anti-counterfeiting effect of the aerosol-generating assembly 200.

The material of the susceptor 220 is mainly used to indicate the moment during the entire heating period when the aerosol substrate portion 210 reaches the maximum desired temperature.

In one possible embodiment, when susceptor 220 reaches the curie temperature, the magnetic permeability and/or permittivity of susceptor 220 varies by a value greater than a set value.

In this embodiment, when the susceptor 220 reaches a distance temperature, the susceptor 220 undergoes a phase change, and at this time, the magnetic permeability and/or the dielectric constant of the susceptor 220 undergo a substantial change, which may affect the voltage standing wave ratio of the microwave transmission line in the microwave assembly, so that the function of controlling the temperature of the aerosol substrate portion 210 may be achieved.

In one possible embodiment, the susceptor 220 comprises a ferroelectric or piezoelectric susceptor.

In this design, when the temperature of the aerosol substrate portion reaches the curie temperature of the ferroelectric and/or piezoelectrics susceptor during heating of the aerosol substrate portion by the microwave assembly, the lattice structure of susceptor 220 changes, the polarization disappears, the dielectric constant of susceptor 220 increases significantly, a maximum is exhibited, and the temperature sensitivity is high, which causes a relatively significant impedance mismatch in the aerosol generating system. This change in phase change indicates that the temperature of the current aerosol substrate portion has been above the set temperature, and the microwave assembly may automatically cease heating the aerosol substrate portion when a phase change induced impedance mismatch associated with the curie temperature of the susceptor 220 is detected. After stopping the heating and cooling down at the aerosol matrix portion until below the curie temperature of the susceptor 220, at which point the susceptor 220 resumes its ferroelectric/piezoelectrical properties. The control circuit of the microwave component can detect that the impedance mismatch caused by the phase change is obviously reduced, and the microwave component can be started again to heat the aerosol substrate. The heating temperature of the aerosol matrix part can be controlled through repeated starting and stopping of the microwave component, and the non-contact temperature control of the aerosol matrix part is realized.

Ferroelectric receptors and piezoreceptors have a higher resistivity, a higher dielectric constant and a lower dielectric loss. The susceptor 220 can not absorb microwaves in a transitional way, so that microwaves generated by the microwave component can act on the aerosol substrate part, and the influence of the susceptor 220 on the atomization effect of the aerosol substrate part is avoided.

In one possible embodiment, the susceptors 220 comprise ferroelectric/piezoceramic susceptors of perovskite structure, and/or ferroelectric/piezofilm susceptors, and/or ceramic thermistor susceptors.

In one possible embodiment, the susceptor 220 comprises at least one of a bismuth sodium titanate susceptor, a bismuth barium niobate susceptor, a barium titanate susceptor, a sodium niobate susceptor, a niobium titanate susceptor, a barium strontium titanate susceptor, a niobate susceptor.

As shown in fig. 1, in one possible embodiment, the susceptor 220 extends along the length of the aerosol substrate portion 210.

In this embodiment, the length direction of the susceptor 220 is defined to be disposed in the same direction as the length direction of the aerosol substrate portion 210. The effect of the microwaves on the aerosol substrate portion 210 is different due to the length of the aerosol substrate portion 210, the heating effect of the microwaves on the side of the aerosol substrate portion 210 facing the resonant cavity 110 is relatively good, the heating effect of the microwaves on the side of the aerosol substrate portion 210 facing away from the resonant cavity 110 is relatively poor, and the heating effect of the microwaves on the aerosol substrate portion 210 is different, so that the temperatures of the aerosol substrate portion 210 are also different. The susceptor 220 extends along the length direction of the aerosol substrate portion 210, so that the susceptor 220 can detect the temperatures of a plurality of positions of the aerosol substrate portion 210, the accuracy of temperature detection is improved, the area with overhigh temperature on the aerosol substrate portion 210 is ensured, harmful substances generated by the aerosol substrate portion 210 are effectively avoided, and the safety of a user in using the aerosol generating system is improved.

In one possible embodiment, the aerosol substrate portion 210 comprises an aerosol substrate segment 211, the length of the susceptor 220 being less than or equal to the length of the aerosol substrate segment 211.

In this embodiment, the relationship of the length of the susceptor 220 and the length of the aerosol substrate segment 211 is defined. Since the susceptor 220 extends in the length direction of the aerosol substrate portion 210 and the length of the susceptor 220 is smaller than the length of the aerosol substrate portion 210, the susceptor 220 does not protrude out of the aerosol substrate segment 211.

The aerosol matrix portion 210 generally further comprises a hollow section 212, a cooling section 213 and a filter section 214, the hollow section 212 being located between the cooling section 213 and the aerosol matrix section 211, the cooling section 213 being located between the hollow section 212 and the filter section 214. The hollow section 212 is used for buffering aerosol for aerosol can gentle flow, and the hollow section 212 still links to each other with cooling section 213, and cooling section 213 is used for cooling the aerosol, thereby improves user's comfort level, and filter tip section 214 links to each other with cooling section 213, and filter tip section 214 is used for filtering aerosol. The aerosol generating substrate part is further provided with a housing for wrapping the aerosol substrate section 211, the hollow section 212, the cooling section 213 and the filter section 214, the housing being one of a cardboard tube, a polylactic acid material tube, a protein material tube, a vegetable gum material tube or a cellulose derivative material tube having a supporting function.

If the susceptor 220 extends out of the aerosol substrate segment 211, the extended part detection cannot be used for detecting the temperature, so that the susceptor 220 does not extend out of the aerosol substrate segment 211, the accuracy in detecting the temperature of the aerosol substrate segment 211 can be ensured on the basis of shortening the length of the susceptor 220 as much as possible, and the material waste caused by a longer and larger susceptor 220 is avoided.

In one possible application, aerosol substrate segment 211 is a solid material based on tobacco, herb or herbal leaves, medicaments, prepared to include substrates of various forms including one or more of particulates, flakes, powder chips, filaments, pastes, cakes, porous aerogels, capsules, and the like.

The material of the hollow section 212 is one of cardboard tube, polylactic acid material tube, synthetic resin, protein material tube, vegetable gum material tube, cellulose derivative material tube, cellulose acetate, polylactic acid tow or acetate fiber tow, etc.

The material of the cooling section 213 is selected from one of polylactic acid/aluminum foil composite film, paper filter stick, polylactic acid non-woven fabric, polylactic acid particles, polylactic acid filament bundle woven tube, serrated polylactic acid folding film, cellulose acetate and cooling active carbon composite material, and the filter tip section 214 is one of polylactic acid filament bundle or cellulose acetate filament bundle.

The overall length of the aerosol-generating assembly 200 is from 30mm to 70mm, preferably from 40mm to 50mm. Wherein the height of the aerosol substrate sections 211 is between 6mm and 25mm, preferably between 8mm and 12mm. The aerosol substrate sections 211 have a diameter of 4mm to 17mm, preferably 5mm to 8mm.

As shown in connection with fig. 3 and 4, in one possible embodiment, the number of susceptors 220 is at least one.

In this embodiment, the effect of the microwaves on the aerosol base portion 210 is different from place to place, so the heating effect of the microwaves on the aerosol base portion 210 is different from place to place, and thus the temperature of the aerosol base portion 210 is also different from place to place. By increasing the number of susceptors 220, a plurality of positions on the aerosol substrate portion 210 can be detected, the accuracy of temperature detection is improved, an area with overhigh temperature is not easy to appear on the aerosol substrate portion 210 is ensured, harmful substances generated by the aerosol substrate portion 210 are effectively avoided, and the safety of a user in using an aerosol generating system is improved.

As shown in fig. 3, in one possible embodiment, the number of susceptors 220 is at least two, with at least two susceptors 220 being spaced apart along the length of the aerosol substrate portion 210.

In this embodiment, the effect of the microwaves on the aerosol substrate portion 210 is different due to the length of the aerosol substrate portion 210, the heating effect of the microwaves on the side of the aerosol substrate portion 210 facing the resonant cavity 110 is relatively good, the heating effect of the microwaves on the side of the aerosol substrate portion 210 facing away from the resonant cavity 110 is relatively poor, and therefore the heating effect of the microwaves on the aerosol substrate portion 210 is different, and therefore the temperature of the aerosol substrate portion 210 is also different. The at least two susceptors 220 are extended at intervals along the length direction of the aerosol substrate portion 210, so that the susceptors 220 can detect the temperatures of a plurality of positions of the aerosol substrate portion 210, the accuracy of temperature detection is improved, the area with overhigh temperature on the aerosol substrate portion 210 is ensured, harmful substances generated by the aerosol substrate portion 210 are effectively avoided, and the safety of a user in using the aerosol generating system is improved.

The two adjacent aerosol substrate portions 210 are spaced apart, because the temperature difference between the positions of the aerosol substrate portions 210 which are closer to each other is smaller, it is not necessary to provide two susceptors 220 at the positions which are closer to each other, and the number of susceptors 220 can be reduced by spacing the aerosol substrate portions 210, so that the material consumption can be reduced.

In one possible application, the curie temperature of susceptor 220 is less than 400 degrees celsius.

Ferroelectric susceptor 220 and piezosusceptor 220 have a higher resistivity, a higher dielectric constant and a lower dielectric loss. The susceptor 220 can not absorb microwaves in a transitional way, so that microwaves generated by the microwave assembly 120 can act on the aerosol substrate portion 210, and the influence of the susceptor 220 on the atomization effect of the aerosol substrate portion 210 is avoided.

In one possible application, the susceptor 220 comprises a ferroelectric/piezoelectric ceramic of perovskite structure, a ferroelectric/piezoelectric film, a PCT ceramic thermistor, preferably one or more of bismuth sodium titanate, bismuth barium niobate, barium titanate, sodium niobate, niobium titanate, barium strontium titanate, niobate salts, and the like.

In one possible embodiment, the shape of susceptor 220 includes one or more of a prism, a pyramid, a cone, a sphere.

In this embodiment, the shape of the susceptor 220 can be appropriately set according to actual demands during the production of the susceptor 220. The shape of susceptor 220 includes, but is not limited to, a prism, a pyramid, a cone, a sphere.

In one possible application, the length of the susceptor 220 is between 6mm and 25mm, the width of the susceptor 220 is between 1mm and 6mm, and the thickness of the susceptor 220 is between 10 μm and 100 μm.

Referring to fig. 1 and 5, in some embodiments of the present invention, an aerosol generating device 100 is provided, where the aerosol generating device 100 is used to heat an aerosol generating component 200 in the foregoing embodiments, the aerosol generating device 100 includes a resonant cavity 110 and a microwave component 120, the aerosol generating component 200 may extend into the resonant cavity 110, the microwave component 120 is used to feed microwaves into the resonant cavity 110, the microwave component 120 is provided with a detecting element and a control circuit, the detecting element is used to obtain a voltage standing wave ratio of the microwave component 120, the control circuit determines whether a susceptor 220 in the aerosol generating component 200 reaches a curie temperature according to the voltage standing wave ratio, and reduces output power of the microwave component 120 or turns off the microwave component if the susceptor 220 reaches the curie temperature.

The microwave assembly 120 is capable of generating microwaves and feeding the microwaves into the resonator chamber 110, the microwaves within the resonator chamber 110 being able to act on the aerosol-substrate portion 210 of the aerosol-generating assembly 200 to generate an aerosol. The cavity wall of the resonant cavity 110 is made of a metal material, and illustratively, the cavity wall of the resonant cavity 110 is made of copper, aluminum, iron, or the like, or an alloy thereof.

The control circuit can obtain the voltage standing wave ratio. The magnitude of the voltage standing wave ratio can be indicative of the impedance match between the microwave assembly 120 and the aerosol generating assembly 200. When the impedance is not matched, the voltage standing wave ratio is larger. When the impedances match, the value of the voltage standing wave ratio is small.

When the temperature of the susceptor 220 reaches its curie temperature, the susceptor 220 itself can undergo a phase change, and the corresponding change in the susceptor 220 can cause an impedance mismatch phenomenon, thereby increasing the voltage standing wave ratio. When the voltage standing wave ratio is greater than the set value, it indicates that the temperature of the aerosol substrate portion 210 has reached the set temperature, and at this time, the temperature of the aerosol substrate portion 210 is higher, so as to avoid generating harmful substances due to the continuous increase of the temperature of the aerosol substrate portion 210, and at this time, the control circuit can control the microwave assembly 120 to reduce the output power or stop working, so as to realize the function of controlling the temperature of the aerosol generating assembly 200. When the temperature of the aerosol substrate portion 210 is below the set temperature, the susceptor 220 may revert to the original phase, the voltage standing wave ratio decreases, indicating that the temperature of the current aerosol substrate portion 210 has decreased, and the microwave assembly 120 may be controlled to continue heating the aerosol substrate portion 210.

In one possible embodiment, the aerosol-generating device 100 further comprises a housing 130 and a resonant column 140, the resonant cavity 110 being disposed within the housing 130, a first end of the resonant column 140 being connected to a cavity bottom wall of the resonant cavity 110, and a second end of the resonant column 140 being disposed opposite the aerosol-generating assembly 200.

In this embodiment, the resonant cylinder 140 is mounted within the atomizing chamber, the diameter of the resonant cylinder 140 being smaller than the diameter of the atomizing chamber, so that a gap is provided between the outer sidewall of the atomizing chamber and the inner sidewall of the atomizing chamber, within which portion of the spacing microwave energy is conducted. The resonant pillars 140 can function as conductors, and the resonant pillars 140 may be made of a metal material, and illustratively, the resonant pillars 140 are made of copper, aluminum, iron, or the like, or an alloy thereof. The resonant pillars 140 are used for transmitting microwaves and improving the transmission rate of the microwaves, the microwaves are not easy to attenuate when being transmitted in the atomization cavity, and the effect of the microwaves on the aerosol-generating substrate is improved, so that the microwaves can efficiently and quickly act on the aerosol-generating substrate, and the use requirements of users are met.

In one possible embodiment, as shown in fig. 5, the housing 130 includes a first body 131 and a second body 132, the second body 132 is detachably connected to the first body 131, and the first body 131 and the second body 132 enclose the resonant cavity 110.

In this embodiment, the connection mode of the first body 131 and the second body 132 is limited, the first body 131 can be detached from the second body 132, when the aerosol generating device 100 needs to be cleaned after the aerosol generating device 100 is used for a long time, the first body 131 can be detached from the second body 132, so that the opening of the resonant cavity 110 is opened, the resonant cavity 110 can be cleaned independently, the cleaning convenience of the aerosol generating device 100 is improved, and the use convenience of the aerosol generating device 100 is further improved for a user. In addition, when the aerosol generating device 100 is damaged, the sub-parts in the aerosol generating device 100 can be replaced individually, so that the maintenance cost of the aerosol generating device 100 is reduced.

Illustratively, mounting holes may be provided in the first and second bodies 131 and 132 through which the locking member passes to mount the mount 133 to the bodies.

As shown in fig. 5, in one possible embodiment, the first body 131 or the second body 132 is provided with a mounting seat 133, and the mounting seat 133 is provided with a receiving cavity, and a portion of the aerosol base portion 210 is received in the receiving portion.

In this embodiment, the mount 133 spaces the aerosol substrate portion 210 from the resonant pillars 140, preventing the resonant pillars 140 from contacting the aerosol substrate, thereby avoiding contamination of the resonant pillars 140 and reducing cleaning effort for the resonant pillars 140.

In one possible application, the mount 133 is made of a non-conductive material having a certain strength and low dielectric loss, such as PEEK material, PTFE, microwave transparent ceramic, glass, silicon carbide, alumina, or the like. The inner wall surface of the containing part is provided with a local bulge structure, so that the air flow is kept smooth during suction, and the suction resistance is reduced.

In one possible embodiment, the cavity 110 includes a strong field region where the susceptor 220 in the aerosol-generating assembly 200 is located in the cavity 110, the strong field region being the strong field region of microwaves that the microwave assembly 120 feeds into the cavity 110 to form.

In this embodiment, the microwave assembly 120 feeds microwaves into the atomizing chamber, where the microwaves are conducted, and the atomizing chamber is formed with a strong field region and a weak field region, which are affected by the microwave transmission characteristics. The aerosol generating substrate in the body is arranged in the strong field region of the atomizing cavity, so that the microwave heating atomizing effect of the aerosol generating substrate can be ensured. Therefore, by disposing the identification member also in the strong field region, it can be ensured that the identification member can exert an influence on the resonance frequency of the aerosol-generating assembly 200.

Embodiments of the present invention provide an aerosol-generating system comprising an aerosol-generating assembly according to any of the embodiments described above, and an aerosol-generating device according to any of the embodiments described above, a portion of the aerosol-generating assembly being insertable into the aerosol-generating device. The aerosol-generating system thus has all of the advantages of the aerosol-generating assembly set forth in any one of the possible embodiments described above, as well as all of the advantages of the aerosol-generating device set forth in any one of the possible embodiments described above, and will not be described in detail herein.

In some embodiments of the invention, a control method of an aerosol-generating system is presented, the aerosol-generating system comprising an aerosol-generating component comprising an aerosol-substrate portion and a susceptor, the susceptor being provided in the aerosol-substrate portion, and an aerosol-generating device comprising a resonant cavity and a microwave component for feeding microwaves into the resonant cavity.

As shown in fig. 6, the control method of the aerosol generating system includes:

Step S102, controlling a microwave component to sweep frequency in a microwave frequency range, and searching a target microwave frequency in the microwave frequency range;

Step S104, controlling the microwave component to feed microwaves to the resonant cavity at a target microwave frequency, and obtaining the voltage standing wave ratio of the microwave component;

step S106, determining the temperature of a susceptor according to the voltage standing wave ratio;

step S108, determining the working state of the microwave assembly according to the temperature of the susceptor.

The present embodiments provide a control method for controlling an aerosol generating system, and microwaves for heating an aerosol substrate portion, wherein the aerosol substrate portion may be a solid aerosol generating substrate or a liquid aerosol generating substrate. The aerosol generating device is internally provided with a resonant cavity for accommodating the aerosol matrix part, the microwave component can feed microwaves into the resonant cavity, and the aerosol matrix part is heated and atomized under the action of the microwaves.

The voltage standing wave ratio of the microwave component is changed through the corresponding change of the susceptor, so that the non-contact temperature control of the aerosol substrate part can be realized, a circuit detection part attached to the aerosol substrate part is not required to be arranged, the circuit detection part is prevented from being stained, and the cleaning workload of a user on the aerosol generating device is reduced. Moreover, by detecting the temperature of the aerosol substrate part through the corresponding change of the receptor, the accuracy of the detection process can be improved, harmful substances are prevented from being generated in the aerosol substrate part, and the safety of a user in the use process is improved. In one possible embodiment, determining the operating state of the microwave assembly based on the temperature of the susceptor includes reducing the output power of the microwave assembly or shutting down the microwave assembly based on the temperature of the susceptor reaching a curie temperature, the temperature of the susceptor being less than the curie temperature, and controlling the microwave assembly to operate at a nominal power.

In this embodiment, when the susceptor reaches the curie temperature, the temperature of the aerosol substrate is higher at this time, so as to avoid generating harmful substances due to the fact that the temperature of the aerosol substrate is continuously increased, and the control circuit can control the microwave component to reduce the output power or stop working, so that the function of controlling the temperature of the aerosol generating component is realized. When the temperature of the susceptor is lower than the curie temperature, the susceptor can restore to the original phase, the voltage standing wave ratio is reduced, which means that the temperature of the current aerosol substrate part is already reduced, and the microwave component can be controlled to continuously heat the aerosol substrate part.

In one possible embodiment, after searching the target microwave frequency in the microwave frequency range, the method further comprises the steps of determining the matching state of the aerosol generating component and the microwave component according to the numerical relation between the target microwave frequency and the set frequency, controlling the microwave component to feed microwaves to the resonant cavity at the target microwave frequency based on the matching state of the aerosol generating component and the microwave component, and controlling the microwave component to stop running based on the non-matching state of the aerosol generating component and the microwave component, and outputting prompt information.

In this embodiment, according to the numerical relationship between the target microwave frequency and the set frequency range, it is possible to determine the matching state of the aerosol-generating component and the microwave component, that is, whether the aerosol-generating component matches the microwave component. And controlling the operation of the microwave assembly according to the matching state of the aerosol generating assembly and the microwave assembly.

In the present invention, the term "plurality" means two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, as they are used in a fixed or removable connection, or as they are integral with one another, as they are directly or indirectly connected through intervening media. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An aerosol generating assembly, comprising:

an aerosol matrix portion;

A susceptor disposed on the aerosol substrate portion, the susceptor having a Curie temperature less than 400 degrees Celsius;

when the susceptor reaches the Curie temperature, the change value of the magnetic permeability and/or the dielectric constant of the susceptor is larger than a set value;

The number of the receptors is at least two, and the at least two receptors are arranged at intervals along the length direction of the aerosol substrate part, so that the receptors can detect the temperatures of a plurality of positions of the aerosol substrate part;

The susceptor comprises a ferroelectric or piezoelectric susceptor;

The aerosol generating assembly can extend into a resonant cavity, the resonant cavity comprises a strong field region, the susceptor in the aerosol generating assembly is positioned in the strong field region of the resonant cavity, and the strong field region is a strong field region of microwaves formed by feeding microwaves into the resonant cavity by a microwave assembly.

2. The aerosol generating assembly of claim 1, wherein the aerosol generating assembly comprises,

The susceptor comprises a ferroelectric/piezoelectric ceramic susceptor with perovskite structure, and/or

Ferroelectric/piezoelectric film susceptor, and/or

Ceramic thermistor susceptors.

3. The aerosol generating assembly of claim 1, wherein the aerosol generating assembly comprises,

The receptor comprises at least one of a bismuth sodium titanate receptor, a bismuth barium niobate receptor, a barium titanate receptor, a sodium niobate receptor, a niobium titanate receptor, a barium strontium titanate receptor and a niobate receptor.

4. An aerosol-generating assembly according to any one of claims 1 to 3 wherein,

The susceptor extends along a length of the aerosol substrate portion.

5. An aerosol-generating assembly according to any one of claims 1 to 3 wherein,

The aerosol substrate portion comprises an aerosol substrate segment, the length of the susceptor being less than or equal to the length of the aerosol substrate segment.

6. An aerosol-generating device for heating an aerosol-generating assembly according to any of claims 1 to 5, comprising:

A resonant cavity into which the aerosol-generating assembly is extendable;

The microwave assembly is used for feeding microwaves into the resonant cavity, the microwave assembly is provided with a detection part and a control circuit, the detection part is used for acquiring the voltage standing wave ratio of the microwave assembly, the control circuit judges whether the susceptor reaches the Curie temperature according to the voltage standing wave ratio, and the output power of the microwave assembly is reduced or the microwave assembly is closed based on the fact that the susceptor reaches the Curie temperature.

7. The aerosol-generating device of claim 6, characterized in that the aerosol generating device further comprises:

the resonant cavity is arranged in the shell;

and the first end of the resonance column is connected with the bottom wall of the cavity of the resonance cavity, and the second end of the resonance column is opposite to the aerosol generating component.

8. An aerosol generating system, comprising:

an aerosol generating assembly according to any one of claims 1 to 5;

an aerosol generating device according to claim 6 or 7, a portion of the aerosol generating assembly being pluggable into the aerosol generating device.

9. The control method of the aerosol generating system is characterized in that the aerosol generating system comprises an aerosol generating component and an aerosol generating device, wherein the aerosol generating component comprises an aerosol substrate part and a susceptor, the susceptor is arranged on the aerosol substrate part, and the aerosol generating device comprises a resonant cavity and a microwave component, and the microwave component is used for feeding microwaves into the resonant cavity;

the control method comprises the following steps:

Controlling the microwave component to sweep frequency in a microwave frequency range, and searching for a target microwave frequency in the microwave frequency range;

controlling the microwave component to feed microwaves to the resonant cavity at the target microwave frequency, and acquiring the voltage standing wave ratio of the microwave component;

determining the temperature of the susceptor according to the voltage standing wave ratio;

And determining the working state of the microwave assembly according to the temperature of the susceptor.

10. The method of claim 9, wherein said determining an operating state of the microwave assembly based on the temperature of the susceptor comprises:

Reducing the output power of the microwave assembly or shutting down the microwave assembly based on the susceptor temperature reaching a curie temperature;

the susceptor has a temperature less than the curie temperature and the microwave assembly is controlled to operate at a nominal power.

11. The method of controlling an aerosol-generating system according to claim 9 or 10, further comprising, after the finding of the target microwave frequency in the microwave frequency range:

Determining a matching state of the aerosol generating assembly and the microwave assembly according to a numerical relation between the target microwave frequency and a set frequency range;

Controlling the microwave assembly to feed microwaves to the resonant cavity at a target microwave frequency based on the aerosol generating assembly and the microwave assembly being in a matched state;

and controlling the microwave assembly to stop running based on the fact that the sol generating assembly and the microwave assembly are in a non-matching state, and outputting prompt information.