CN113729304A - Aerosol generating device - Google Patents

Abstract

The application provides an aerosol generating device belongs to electron atomization technical field, and aerosol generating device includes: the shell is provided with a resonant cavity; a mounting portion disposed in the housing at a first end of the resonant cavity for receiving an aerosol-generating substrate; a microwave assembly connected to the housing for emitting microwaves into the resonant cavity to heat the aerosol generating substrate to generate an aerosol; the optical fiber temperature sensing piece is arranged in the resonant cavity and used for detecting the temperature of the aerosol generating substrate, and at least part of the optical fiber temperature sensing piece penetrates through the mounting part. Gather the temperature that the aerosol produced the matrix through setting up optic fibre temperature-sensing piece, can not receive the influence of resonant cavity microwave field and can feed back the accurate temperature that the aerosol produced the matrix with very fast speed, prevent on the one hand that the improper material that leads to producing of temperature does not need, on the other hand improves atomization efficiency, reduces the matrix extravagant, has improved effectively if the use experience of aerosol production devices such as electron cigarette.

Description

Aerosol generating device

Technical Field

The application belongs to the technical field of electronic atomization, and particularly relates to an aerosol generating device.

Background

A Heat Not Burning (HNB) device is an electronic device that heats but does Not burn an aerosol generating substrate (a treated plant leaf preparation). The non-combustible heat generating device is heated by the high temperature to a temperature at which the aerosol generating substrate is capable of generating an aerosol but not sufficiently combustible to enable the aerosol generating substrate to generate the aerosol for the user to desire without combustion.

HNB devices currently on the market mainly use a resistance heating method, that is, heating by inserting a central heating sheet or a heating needle or the like from the center of an aerosol-generating substrate into the aerosol-generating substrate. The device needs long preheating waiting time before use, can not be freely pumped out and stopped, and the carbonization of the aerosol generating substrate is not uniform, so that the aerosol generating substrate is not fully baked and the utilization rate is low; secondly, the heating sheet of the HNB device easily generates dirt in the aerosol generating substrate extractor and the heating sheet base, which is difficult to clean; the temperature of the local aerosol generating substrate contacting the heating element is overhigh, partial cracking occurs, and unnecessary substances are released. Therefore, microwave heating technology is gradually replacing resistance heating method to become a new heating method. The microwave heating technology has the characteristics of high efficiency, timeliness, selectivity and no heating delay, and only has a heating effect on substances with specific dielectric characteristics. The application advantages of adopting microwave heating atomization are as follows: a. the microwave heating is radiation heating, is not heat conduction, and can realize the pumping and stopping immediately; b. the heating sheet is not needed, so that the problems of broken sheets and cleaning heating sheets are avoided; c. the aerosol generating substrate has high utilization rate, high consistency of taste and more similar taste to cigarettes.

Meanwhile, in the HNB device adopting the resistance heating mode, the heating temperature control is realized by feeding back, measuring and controlling the output of current or voltage by a thermocouple, so that the aim of controlling the temperature is fulfilled. The electric parameter consistency and the precision requirement of the heating sheet are very high, the temperature control precision is poor, and the temperature control is not accurate and easily produces unnecessary substances. For the HNB device in the microwave heating mode, the microwave heating generates a strong electromagnetic field, and in the strong electromagnetic field, when the conventional temperature sensor is used for measuring the temperature, the temperature measuring probe and the lead made of the metal material generate an induced current in the high-frequency electromagnetic field, and due to the skin effect and the eddy current effect, the temperature of the HNB device itself rises and sparks are easily generated, which causes serious interference to the temperature measurement, so that the temperature indication value generates a large error or cannot perform stable temperature measurement.

Disclosure of Invention

The present application is directed to solving one of the technical problems of the prior art or the related art.

To this end, the present application proposes an aerosol generating device.

In view of the above, the present application provides an aerosol generating device, comprising: the shell is provided with a resonant cavity; a mounting portion disposed in the housing at a first end of the resonant cavity for receiving an aerosol-generating substrate; a microwave assembly connected to the housing for emitting microwaves into the resonant cavity to heat the aerosol generating substrate to generate an aerosol; the optical fiber temperature sensing piece is arranged in the resonant cavity and used for detecting the temperature of the aerosol generating substrate, and at least part of the optical fiber temperature sensing piece penetrates through the mounting part.

In the technical scheme, the aerosol generating device comprises equipment such as an 'electronic cigarette' and the like, wherein the shell is a main body framework of the aerosol generating device, a resonant cavity is formed inside the shell, and a microwave assembly connected with the shell is arranged at the same time. The shell is further provided with an installation part, the installation part is arranged at the first end of the resonant cavity, and the installation part is used for accommodating the aerosol generating substrate.

In the working process of the aerosol generating device, the microwave assembly can generate microwaves and emit the microwaves into the resonant cavity, so that the aerosol generating substrate arranged on the mounting part is heated and atomized to form aerosol for a user to suck.

The mounting portion is made of an insulating material with low dielectric loss, and may be made of PTFE (polytetrafluoroethylene), microwave transparent ceramic, or the like.

The aerosol generating device also comprises an optical fiber temperature sensing piece, wherein the optical fiber temperature sensing piece mainly comprises an optical fiber structure, the optical fiber structure is used as a sensor for temperature acquisition and a signal transmission channel at the same time, the backward scattering optical signals of the optical fiber are detected by utilizing a space temperature field where the optical fiber is located, and a metal probe and a metal cable are not arranged, so that the aerosol generating device has the characteristics of super-strong electromagnetic field interference resistance, quick response time, stable performance, long service life, corrosion resistance, small size and the like.

Gather the temperature that the aerosol produced the matrix through setting up optic fibre temperature-sensing piece, can not receive the influence of microwave field in the resonant cavity, consequently, the temperature information of gathering is more accurate, and the response speed to temperature variation is faster, simultaneously because the signal transmission speed of optic fibre is showing faster than general cable, consequently can feed back the accurate temperature that the aerosol produced the matrix with very fast speed, thereby control microwave subassembly in time adjusts microwave power, thereby make the aerosol produce the atomizing of matrix under suitable temperature, prevent on the one hand that the improper material that leads to producing of temperature, on the other hand improves atomization efficiency, it is extravagant to reduce the matrix, effectively improved the use experience of aerosol production devices such as electron cigarette.

In addition, according to the aerosol generating device in the above technical solution provided by the present application, the following additional technical features may be further provided:

in the above technical scheme, the installation part is provided with a through hole communicated with the resonant cavity, and at least part of the optical fiber temperature sensing element penetrates through the through hole.

In this technical scheme, optic fibre temperature-sensing spare mainly includes the optic fibre structure, for making optic fibre temperature-sensing spare pass the installation department, from can contacting with aerosol production substrate, be provided with the through-hole of intercommunication resonant cavity on the installation department, the optic fibre structure passes the through-hole on resonant cavity and the installation department, at least partial optic fibre structure contacts with aerosol production substrate, thereby can accurately discern the actual temperature that aerosol produced substrate, make aerosol production device can produce the operating power of microwave component according to the actual temperature control of aerosol production substrate, make aerosol production substrate can atomize under suitable temperature, guarantee atomization efficiency, prevent to produce the material that does not need simultaneously.

In any of the above technical solutions, the optical fiber temperature sensing element includes N optical fiber temperature sensing probes; the number of the through holes is N, the N through holes correspond to the N optical fiber temperature-sensing probes one by one, and N is an integer larger than 1.

In this technical scheme, the optical fiber temperature sensing element includes a plurality of optical fiber temperature sensing probes, specifically N optical fiber temperature sensing probes, and specifically, one optical fiber temperature sensing probe may be a bundle of optical fiber harnesses. Simultaneously, corresponding to N optic fibre temperature sensing probe, still be provided with on the installation department with its a-to-one N through-hole, each probe in N optic fibre temperature sensing probe is worn out the installation department by a through-hole that corresponds to can gather the temperature of the different positions in the aerosol production substrate, and then realized can real time monitoring aerosol production substrate when the heating atomization, holistic temperature change curve.

Therefore, the aerosol generating device that this application embodiment provided, control microwave subassembly that on the one hand can be better heats, prevent to reduce because of local high temperature or the atomizing efficiency that leads to excessively low, on the other hand is favorable to making the designer produce the holistic temperature variation of matrix when heating atomizing according to the aerosol, in exploring aerosol generating device, the microwave distribution condition in the resonant cavity, be favorable to helping the designer to adjust microwave subassembly's operating parameter, in order to obtain more even microwave field distribution, make aerosol generating device (like the electron cigarette), can be better make aerosol generate the even heating of matrix (like the cigarette bullet that uses with the electron cigarette cooperation), fully atomizing.

In any of the above technical solutions, the aerosol generating device further includes: the resonance post is located the resonant cavity, and the first end of resonance post is connected with the installation department, and the second end of resonance post is connected with the second end of resonant cavity.

In this technical scheme, be provided with the resonance post that uses with the cooperation of microwave subassembly in aerosol generating device's the resonant cavity, the resonance post specifically is used for carrying out the resonance conduction to the microwave that the microwave subassembly launches to make the microwave subassembly feed-in resonant cavity's microwave, the first end of conduction to the resonance post by the second end of resonance post, and then carry out microwave heating to aerosol production substrate on the installation department, make its atomizing be aerosol.

The aerosol generation substrate and the resonant cavity are mutually isolated through the installation part, so that aerosol, liquid waste and fixed waste generated by atomization can be prevented from entering the resonant cavity, and the resonant cavity is prevented from being polluted by the waste to cause faults.

In any of the above technical solutions, the resonant cavity is a cylindrical resonant cavity, the mounting portion is a cylindrical mounting portion, and the cylindrical resonant cavity and the cylindrical mounting portion are coaxially arranged; the resonant column is arranged coaxially with the cylindrical resonant cavity.

In this technical scheme, resonant cavity, installation department are cylindrical setting, can effectively improve the utilization ratio of inner space on the one hand, reduce the whole volume of device, realize aerosol generating device's miniaturization, and on the other hand can improve the bulk strength of each structure in the aerosol generating device.

Simultaneously, cylindrical resonant cavity and the coaxial setting of cylindrical installation department, resonance post and the coaxial setting of cylindrical resonant cavity can guarantee to produce the microwave of matrix department through resonance post conduction to aerosol, can conduct to aerosol and produce the middle part position of matrix to improve the microwave and produce the homogeneity of matrix heating to aerosol, the aerosol that has avoided microwave to concentrate to lead to produces the matrix and is heated inhomogeneously, further improved atomization efficiency, guaranteed the aerosol and produced the atomization effect of matrix.

In any of the above technical solutions, the resonant column includes a cavity, and the cavity penetrates through the resonant column along an axial direction of the resonant column.

In the technical scheme, the resonance column is a hollow tubular structure, wherein the optical fiber temperature sensing probe can be transmitted inside the resonance column, so that the optical fiber temperature sensing probe is fixed and protected through the resonance column, and the optical fiber temperature sensing probe is prevented from being damaged.

In any of the above technical solutions, the aerosol generating device further includes: a controller for controlling the microwave assembly in dependence on the temperature of the aerosol-generating substrate; the optical fiber temperature sensing member further comprises: and the transmission line is positioned in the cavity and is connected with the optical fiber temperature sensing probe and the controller.

In the technical scheme, the aerosol generating device further comprises a controller, wherein the controller can control the microwave assembly to work according to the sucking action of a user, and control the working parameters of the microwave assembly, such as microwave power, microwave duty ratio and the like, according to the collected aerosol generating substrate.

The optic fibre temperature-sensing piece includes the transmission line, specifically be the optic fibre pencil, optic fibre temperature-sensing probe is connected to the one end of this transmission line, other end connection director, thereby the temperature data transmission who gathers optic fibre temperature-sensing probe to the server, so that the server passes through the temperature that the aerosol produced the substrate, adjust microwave assembly's working parameter, thereby make the aerosol produce the substrate and atomize under suitable temperature, prevent on the one hand that the improper material that leads to producing of temperature from not needing, on the other hand improves atomization efficiency, it is extravagant to reduce the substrate, the use experience of aerosol production devices such as electron cigarette has been improved effectively.

In any of the above technical solutions, the resonance column is a conductor resonance column.

In this technical scheme, the resonance post is used for carrying out the resonance conduction with the microwave of microwave subassembly transmission to make the microwave subassembly feed in the microwave of resonant cavity, conduct to the first end of resonance post by the second end of resonance post, and then carry out microwave heating to aerosol production substrate on the installation department, make its atomizing be aerosol.

Wherein, in order to meet the resonance requirement, the outer surface of the resonance column needs to have conductive performance. Therefore, the material of the resonant column is a conductor material, that is, the resonant column is a conductor resonant column, and the material of the conductor resonant column is preferably a metal, such as copper, iron, aluminum, silver, gold, or an alloy of the above metals, and in some embodiments, the material of the conductor resonant column may also be carbon or an allotrope of carbon, which is not limited in this embodiment of the present invention.

In any of the above technical solutions, the resonant column is a metal resonant column.

In the technical scheme, the resonance column is a metal resonance column. Specifically, the resonant column is used for conducting resonant conduction on the microwave emitted by the microwave assembly, so that the microwave fed into the resonant cavity by the microwave assembly is conducted to the first end of the resonant column from the second end of the resonant column, and then the aerosol generating substrate on the mounting part is subjected to microwave heating to be atomized into aerosol.

Wherein, in order to meet the resonance requirement, the outer surface of the resonance column needs to have conductive performance. Therefore, the resonant column is made of metal, such as copper, iron, aluminum, silver, gold, or an alloy thereof.

In any of the above technical solutions, the resonance column includes: a cylinder; the first metal thin film layer covers the outer side wall of the column body.

In the technical scheme, the resonant column specifically comprises a column body and a first metal thin film layer. The resonance column is used for conducting resonance conduction on the microwave emitted by the microwave assembly, so that the microwave fed into the resonant cavity by the microwave assembly is conducted to the first end of the resonance column from the second end of the resonance column, and then the aerosol generating substrate on the mounting part is subjected to microwave heating to be atomized into aerosol.

Wherein, in order to meet the resonance requirement, the outer surface of the resonance column needs to have conductive performance. Therefore, the metal film layer covering the column body is arranged on the outer side wall of the column body, so that the outer surface of the resonance column has conductive performance, and the effect of resonance conduction on the microwave emitted by the microwave assembly can be realized.

It can be understood that the metal thin film layer may be a metal simple substance material, or a metal alloy material. Preferably, the metal thin film layer may be made of copper, iron, aluminum, silver, gold, or an alloy of the above metals.

In any of the above aspects, the housing comprises: a first outer case; the inner shell is connected with the first outer shell and is positioned in the first outer shell, the inner shell is made of metal materials, and the resonant cavity is positioned in the inner shell.

In the technical scheme, a resonant cavity is formed in the shell, and the wall of the resonant cavity has conductive performance, so that microwaves generated by the microwave assembly are bound in the resonant cavity, and the microwaves are prevented from leaking. Specifically, the housing includes a first outer housing and an inner housing, the first outer housing may be made of an insulating material such as plastic, and may also be made of a metal material, the inner housing is connected to the outer housing inside the first outer housing, and the inner housing is of a hollow structure, in which a resonant cavity is formed. Because the inner shell is made of metal materials, the microwave generated by the microwave component can be bound in the resonant cavity, so that the microwave cannot be diffused to the external environment, and the use safety of the aerosol generating device is ensured.

Simultaneously, because the dual structure of first shell body and interior casing for first shell can set up to insulating material, has further guaranteed aerosol generating device's safety in utilization.

The material of the inner shell can be copper, iron, aluminum, silver, gold or alloy material of the above metals. This is not limited by the present application.

In any of the above aspects, the housing comprises: a second outer housing; and the conducting layer covers the inner side wall of the second outer shell, the outer side of the conducting layer is connected with the second outer shell, and the resonant cavity is positioned on the inner side of the conducting layer.

In the technical scheme, a resonant cavity is formed in the shell, and the wall of the resonant cavity has conductive performance, so that microwaves generated by the microwave assembly are bound in the resonant cavity, and the microwaves are prevented from leaking. Specifically, the casing includes second shell and conducting layer, and the conducting layer covers in the inside wall of second shell to form the electrically conductive shielding layer of one deck, can enclose the microwave constraint that the microwave subassembly produced in the conducting layer and close the resonant cavity that forms, make the unable diffusion of microwave to external environment, guarantee aerosol generating device's safety in utilization.

Simultaneously, because the dual structure of second shell body and interior casing for the second shell body can set up to insulating material, has further guaranteed aerosol generating device's safety in utilization.

The conductive layer is preferably a metal conductive layer, and the material of the conductive layer may be copper, iron, aluminum, silver, gold, or an alloy of the above metals. This is not limited by the present application.

In any of the above technical solutions, the aerosol generating device further includes: the isolation cover is arranged on the mounting part and sleeved on the part of the optical fiber temperature sensing piece penetrating through the mounting part.

In the technical scheme, the installation part is provided with an isolation cover, and the isolation cover is arranged corresponding to the through hole on the installation part and sleeved on the optical fiber temperature sensing element. Specifically, the optical fiber temperature sensing piece penetrates through the through hole of the mounting part and is covered by the isolation cover, and the optical fiber temperature sensing piece and the resonance cavity are isolated from the aerosol generating substrate through the isolation cover, so that the optical fiber temperature sensing probe is prevented from being in direct contact with the aerosol generating substrate, liquid substances and other dirt generated after the aerosol generating substrate is atomized are prevented from polluting the temperature sensing probe, and the service life and the test accuracy of the optical fiber temperature sensor are improved.

Wherein, the cage is a transparent cage.

In any of the above technical solutions, the isolation cover is a glass isolation cover, and the optical fiber temperature sensing element is attached to the inner surface of the glass isolation cover.

In this technical scheme, the cage is the glass cage, and the glass cage has good light transmissivity, and corrosion-resistant, stand wear and tear, can effectively protect optic fibre temperature-sensing piece. Meanwhile, the optical fiber temperature sensing piece is attached to the inner surface of the glass isolation cover, so that the temperature of the aerosol generating substrate can be collected more accurately, and the accuracy of temperature collection is improved.

In any of the above technical solutions, the optical fiber temperature sensing probe is a cylindrical optical fiber temperature sensing probe, and the diameter range of the cylindrical optical fiber temperature sensing probe is greater than or equal to 0.2mm, and less than or equal to 3 mm.

In this technical scheme, the optic fibre temperature sensing probe specifically is cylindrical optic fibre temperature sensing probe, and its diameter range is 0.2mm to 3mm, can reduce the volume of aerosol generating device on the one hand, and on the other hand can set up more optic fibre temperature sensing probes in the finite volume, improves the accuracy that the temperature detected.

In any of the above technical solutions, the temperature measuring range of the optical fiber temperature sensing element is as follows: -20 ℃ to 400 ℃.

In the technical scheme, when the aerosol generating device such as the electronic cigarette generates aerosol with the temperature ranging from 160 ℃ to 180 ℃, the aerosol generating device can have larger smoke amount and satisfaction. Therefore, the temperature measuring range of the optical fiber temperature sensing element is as follows: in the range of-20 ℃ to 400 ℃, capable of effectively covering the temperature interval of the aerosol-generating substrate.

In any of the above solutions, the microwave assembly comprises: the microwave leading-in part is arranged on the side wall of the shell and communicated with the resonant cavity; and the microwave emission source is connected with the microwave introduction part, and the microwave output by the microwave emission source is fed into the resonant cavity through the microwave introduction part so that the microwave is conducted along the direction from the second end of the resonant column to the first end of the resonant column.

In this embodiment, the microwave module includes a microwave emitting source and a microwave introduction part. The microwave introducing part is arranged on the side wall of the shell and is used for conveying the microwaves generated by the microwave emitting source into the resonant cavity. After the microwave is fed into the resonant cavity through the microwave introducing part, the microwave can be conducted along the direction from the second end of the resonant column to the first end of the resonant column, so that the microwave can directly act on the aerosol generating substrate, and the atomization effect of the aerosol generating substrate is improved.

In any of the above technical solutions, the method comprises: the first lead-in part is arranged on the side wall of the shell and is connected with the microwave emission source; and the first end of the second lead-in part is connected with the first lead-in part, the second lead-in part is positioned in the resonant cavity, and the second end of the second lead-in part faces to the bottom wall of the resonant cavity.

In the technical scheme, the microwave introducing part comprises a first introducing piece and a second introducing piece, the first introducing piece penetrates through the side wall of the shell, and the first end of the first introducing piece is connected with the microwave emitting source, so that microwaves generated by the microwave emitting source enter the microwave introducing part through the first end of the first introducing piece. The second end of the first lead-in part is connected with the first end of the second lead-in part, and the second end of the second lead-in part faces to the bottom wall of the resonant cavity. After the microwave is conducted through the first lead-in part and the second lead-in part, the microwave is conducted to the aerosol generating substrate from the bottom wall of the resonant cavity to be heated and atomized by the microwave.

The first lead-in part is coaxial with the microwave output end of the microwave emission source, the second lead-in part is provided with a horizontal lead-in part and a vertical lead-in part, the axis of the horizontal lead-in part is parallel to the bottom wall of the resonant cavity, and the axis of the vertical lead-in part is perpendicular to the bottom wall of the resonant cavity. The horizontal leading-in part is connected with the vertical leading-in part through a bending part, and the horizontal leading-in part and the first leading-in part are coaxially arranged. The microwave introduction part is arranged in the mode, so that all microwaves generated by the microwave emission source can enter the resonant cavity and are conducted in the resonant cavity through the resonant column.

In any one of the above aspects, the microwave introduction part includes: and the third lead-in part is arranged on the side wall of the shell, the first end of the third lead-in part is connected with the microwave emission source, and the second end of the third lead-in part faces the resonant column.

The microwave leading-in part also comprises a third leading-in part, the third leading-in part is coaxially arranged with the microwave output end of the microwave emission source, the first end of the third leading-in part is connected with the microwave emission source, the second end of the third leading-in part faces the resonance column, the third leading-in part and the microwave output end of the microwave emission source are coaxially arranged, the third leading-in part is connected with the resonance column, microwaves are directly conducted onto the resonance column, and the microwaves output by the microwave emission source all enter the resonance cavity.

In any of the above technical solutions, the aerosol generating device further includes: and the recessed part is arranged on the bottom wall of the resonant cavity, and the second end of the second lead-in piece is positioned in the recessed part.

The aerosol generating device still includes the depressed part, and the depressed part setting is at the diapire of resonant cavity to the depressed part sets up with the second end of second leading-in piece relatively, and the second end of second leading-in piece extends to in the depressed part, thereby makes the microwave that enters into the resonant cavity can carry out the conduction along the direction of resonant column second end to first end, has reduced the energy loss of microwave conduction in-process.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

figure 1 shows one of the schematic structural views of an aerosol-generating device according to an embodiment of the present application;

figure 2 shows a second schematic structural view of an aerosol generating device according to an embodiment of the present application;

figure 3 shows a third schematic structural view of an aerosol generating device according to an embodiment of the present application;

figure 4 shows a fourth schematic structural view of an aerosol generating device according to an embodiment of the present application;

figure 5 shows a fifth schematic structural view of an aerosol generating device according to an embodiment of the present application;

figure 6 shows six schematic structural views of an aerosol generating device according to an embodiment of the present application;

figure 7 shows a seventh schematic structural view of an aerosol generating device according to an embodiment of the present application;

figure 8 shows an eighth schematic structural view of an aerosol generating device according to an embodiment of the present application.

Reference numerals:

100 aerosol generating device, 102 shell, 1021 first outer shell, 1022 inner shell, 1023 second outer shell, 1024 conductive layer, 104 resonant cavity, 106 installation part, 1062 through hole, 108 microwave component, 1082 microwave introduction part, 10822 first introduction part, 10824 second introduction part, 1084 microwave emission source, 110 optical fiber temperature sensing part, 1102 optical fiber temperature sensing probe, 1104 transmission line, 112 resonant column, 1122 cavity, 1124 cylinder, 1126 first metal film layer, 113 controller, 114 isolation cover, 116 concave part.

Detailed Description

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

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

An aerosol generating device according to some embodiments of the present application is described below with reference to fig. 1-8.

In some embodiments of the present application, there is provided an aerosol-generating device, fig. 1 shows one of the schematic structural diagrams of an aerosol-generating device according to an embodiment of the present application, and as shown in fig. 1, an aerosol-generating device 100 includes: a housing 102, the housing 102 having a resonant cavity 104; a mounting portion 106 provided in the housing 102 at a first end of the resonant cavity 104 for receiving an aerosol generating substrate; a microwave assembly 108 coupled to the housing 102 for emitting microwaves into the resonant cavity 104 to heat the aerosol generating substrate to generate an aerosol; the fiber temperature sensing element 110 is disposed in the resonant cavity 104 and used for detecting the temperature of the aerosol generating substrate, and at least a part of the fiber temperature sensing element 110 is disposed through the mounting portion 106.

In the embodiment of the present application, the aerosol-generating device 100 may be used to atomize a solid aerosol-generating substrate, such as a plant leaf substrate with a desired odor, and the aerosol-generating substrate may further be added with other aroma components, wherein the housing 102 is a main frame of the aerosol-generating device 100, and a resonant cavity 104 is formed inside the housing 102, and a microwave assembly 108 connected to the housing 102 is provided. The housing 102 is further provided with a mounting portion 106, the mounting portion 106 being disposed at a first end of the resonant cavity 104, the mounting portion 106 being for receiving an aerosol generating substrate.

During operation of the aerosol generating device 100, the microwave assembly 108 is capable of generating microwaves and transmitting the microwaves into the resonant cavity 104, thereby heating the aerosol generating substrate mounted on the mounting portion 106 to atomize the aerosol for inhalation by a user.

The material of the mounting portion 106 is specifically an insulating material with low dielectric loss performance, and specifically, the material of the mounting portion 106 may be PTFE (polytetrafluoroethylene), microwave transparent ceramic, or the like.

The aerosol generating device 100 further comprises an optical fiber temperature sensing element 110, wherein the optical fiber temperature sensing element 110 mainly comprises an optical fiber structure, the optical fiber structure is used as a sensor for collecting temperature and a signal transmission channel at the same time, backward scattering optical signals of the optical fiber are utilized by utilizing a space temperature field where the optical fiber is located, temperature detection is realized, and a metal probe and a metal cable are not arranged, so that the aerosol generating device has the characteristics of super-strong electromagnetic field interference resistance, fast response time, stable performance, long service life, corrosion resistance, small size and the like.

Gather the temperature that the aerosol produced the matrix through setting up optic fibre temperature-sensing piece 110, can not receive the influence of microwave field in the resonant cavity 104, therefore the temperature information of gathering is more accurate, and response speed to temperature variation is faster, simultaneously because the signal transmission speed of optic fibre is showing faster than general cable, consequently can feed back the accurate temperature that the aerosol produced the matrix with very fast speed, thereby control microwave subassembly 108 in time adjusts microwave power, thereby make the aerosol produce the matrix and atomize under suitable temperature, prevent that the improper material that leads to producing of temperature on the one hand, on the other hand improves atomization efficiency, it is extravagant to reduce the matrix, effectively improved the use experience of aerosol production device 100 such as electron cigarette.

In addition, according to the aerosol-generating device 100 in the above-mentioned technical solution provided by the present application, the following additional technical features may be further provided:

in some embodiments of the present application, the mounting portion 106 is provided with a through hole 1062 communicating with the resonant cavity 104, and at least a portion of the fiber temperature sensing element 110 passes through the through hole 1062.

In the embodiment of the present application, the optical fiber temperature sensing element 110 mainly includes an optical fiber structure, in order to enable the optical fiber temperature sensing element 110 to pass through the mounting portion 106, and thus to be able to contact with the aerosol generating substrate, the mounting portion 106 is provided with a through hole 1062 communicating with the resonant cavity 104, the optical fiber structure passes through the resonant cavity 104 and the through hole 1062 on the mounting portion 106, at least a part of the optical fiber structure contacts with the aerosol generating substrate, so as to be able to accurately identify the actual temperature of the aerosol generating substrate, and thus the aerosol generating device 100 is able to control the working power of the microwave assembly 108 according to the actual temperature of the aerosol generating substrate, so that the aerosol generating substrate can be atomized at an appropriate temperature, thereby ensuring the atomization efficiency, and simultaneously preventing the generation of unwanted substances.

In some embodiments of the present application, fig. 2 shows a second structural schematic diagram of an aerosol generating device according to an embodiment of the present application, as shown in fig. 2, the fiber-optic temperature-sensing element 110 includes N fiber-optic temperature-sensing probes 1102; the number of the through holes 1062 is N, and the N through holes 1062 correspond to the N fiber temperature-sensing probes 1102 one by one, where N is an integer greater than 1.

In the embodiment of the present application, the optical fiber temperature sensing element 110 includes a plurality of optical fiber temperature sensing probes 1102, specifically N optical fiber temperature sensing probes 1102, and specifically, one optical fiber temperature sensing probe 1102 may be a bundle of optical fiber harnesses. Meanwhile, corresponding to the N optical fiber temperature sensing probes 1102, the installation part 106 is further provided with N through holes 1062 corresponding to the N optical fiber temperature sensing probes 1102 one by one, and each probe in the N optical fiber temperature sensing probes 1102 penetrates out of the installation part 106 through the corresponding through hole 1062, so that the temperatures of different parts in the aerosol generating substrate can be collected, and further, the integral temperature change curve of the aerosol generating substrate during heating and atomization can be monitored in real time.

Therefore, the aerosol generating device 100 provided in the embodiment of the present application, on the one hand, can better control the microwave assembly 108 to heat, prevent the atomization efficiency from decreasing due to too high or too low local temperature, on the other hand, is favorable to enabling designers to search for the microwave distribution condition in the aerosol generating device 100 according to the overall temperature change of the aerosol generating substrate during heating atomization, and is favorable to helping designers to adjust the working parameters of the microwave assembly 108, so as to obtain more uniform microwave field distribution, thereby enabling the aerosol generating device 100 to better enable the aerosol generating substrate to be uniformly heated and sufficiently atomized.

As shown in fig. 2, in some embodiments of the present application, the aerosol generating device 100 further comprises: and the resonant column 112 is positioned in the resonant cavity 104, a first end of the resonant column 112 is connected with the mounting part 106, and a second end of the resonant column 112 is connected with a second end of the resonant cavity 104.

In the embodiment of the present application, a resonant column 112 used in cooperation with the microwave assembly 108 is disposed in the resonant cavity 104 of the aerosol generating device 100, and the resonant column 112 is specifically configured to perform resonant conduction on the microwave emitted from the microwave assembly 108, so that the microwave fed into the resonant cavity 104 by the microwave assembly 108 is conducted from the second end of the resonant column 112 to the first end of the resonant column 112, and then microwave heating is performed on the aerosol generating substrate on the mounting portion 106, so that the aerosol generating substrate is atomized into aerosol.

The aerosol generating substrate and the resonant cavity 104 are isolated from each other through the mounting portion 106, so that aerosol, liquid waste and fixed waste generated by atomization can be prevented from entering the resonant cavity 104, and faults caused by pollution of the resonant cavity 104 by the waste can be avoided.

As shown in fig. 1, 2 and 3, in some embodiments of the present application, the resonant cavity 104 is a cylindrical resonant cavity, the mounting portion 106 is a hollow cylindrical mounting portion 106, and the cylindrical resonant cavity 104 and the hollow cylindrical mounting portion 106 are coaxially disposed; the resonant column 112 is disposed coaxially with the cylindrical resonant cavity 104.

In the embodiment, as shown in fig. 2, the mounting portion 106 is a hollow cylinder, and one end of the mounting portion 106 close to the resonant cavity 104 has a bottom wall, which separates the mounting portion 106 from the resonant cavity 104. The fiber temperature sensing member 110 is disposed on the bottom wall. The bottom wall of the resonant cavity 104 is provided with a plurality of through holes 1062, the through holes 1062 are uniformly distributed on the bottom wall of the resonant cavity 104, the fiber temperature sensing elements 110 correspond to the through holes 1062 one by one, and the fiber temperature sensing probes 1102 of the fiber temperature sensing elements 110 penetrate through the through holes 1062 and enter the resonant cavity 104.

The resonant cavity 104 and the mounting portion 106 are both in a cylindrical shape, so that on one hand, the utilization rate of the internal space can be effectively improved, the overall size of the device is reduced, the miniaturization of the aerosol generating device 100 is realized, and on the other hand, the overall strength of each structure in the aerosol generating device 100 can be improved.

Meanwhile, the cylindrical resonant cavity 104 and the cylindrical mounting part 106 are coaxially arranged, the resonant column 112 and the cylindrical resonant cavity 104 are coaxially arranged, the microwave conducted to the aerosol generating substrate through the resonant column 112 can be ensured, and the microwave can be conducted to the middle position of the aerosol generating substrate, so that the uniformity of heating the aerosol generating substrate by the microwave is improved, the phenomenon that the aerosol generating substrate is heated unevenly due to microwave concentration is avoided, the atomization efficiency is further improved, and the atomization effect of the aerosol generating substrate is ensured.

In some embodiments of the present application, the resonant beam 112 includes a cavity 1122, and the cavity 1122 penetrates the resonant beam 112 in an axial direction of the resonant beam 112.

In the embodiment of the present application, the resonant column 112 is specifically a hollow "tubular" structure, wherein the fiber temperature-sensing probe 1102 can be transmitted inside the resonant column 112, so that the fiber temperature-sensing probe 1102 is fixed and protected by the resonant column 112, and the fiber temperature-sensing probe 1102 is prevented from being damaged.

In some embodiments of the present application, fig. 3 shows a third structural schematic diagram of an aerosol-generating device according to an embodiment of the present application, fig. 4 shows a fourth structural schematic diagram of an aerosol-generating device according to an embodiment of the present application, and as shown in fig. 3 and 4, the aerosol-generating device 100 further includes: a controller 113 for controlling the microwave assembly 108 in dependence on the temperature of the aerosol-generating substrate; the optical fiber temperature sensing element 110 further includes: and a transmission line 1104 positioned in the cavity 1122, wherein the transmission line 1104 connects the fiber-optic temperature-sensing probe 1102 and the controller 113.

In the present embodiment, the aerosol-generating device 100 further comprises a controller 113, wherein the controller 113 is capable of controlling the operation of the microwave assembly 108 according to the sucking action of the user, and controlling the operating parameters of the microwave assembly 108, such as microwave power, microwave duty cycle, etc., according to the collected aerosol-generating substrate.

The optic fibre temperature-sensing piece includes transmission line 1104, specifically be the optic fibre pencil, optic fibre temperature-sensing probe 1102 is connected to this transmission line 1104's one end, other end connection director 113, thereby the temperature data transmission who gathers optic fibre temperature-sensing probe 1102 to the server, so that the server passes through the temperature of aerosol production matrix, adjust microwave subassembly 108's operating parameter, thereby make aerosol production matrix atomizing under suitable temperature, prevent that the improper material that leads to producing of temperature on the one hand from not needing, on the other hand improves atomization efficiency, it is extravagant to reduce the matrix, effectively improved the use experience of aerosol production device 100 such as electron cigarette.

In some embodiments of the present application, the resonant post 112 is a conductive resonant post 112.

In the present embodiment, the resonant column 112 is configured to resonantly conduct microwaves emitted by the microwave assembly 108, such that the microwaves fed into the resonant cavity 104 by the microwave assembly 108 are conducted from the second end of the resonant column 112 to the first end of the resonant column 112, thereby microwave-heating the aerosol-generating substrate on the mounting portion 106 to atomize the aerosol.

Wherein, in order to satisfy the resonance requirement, the outer surface of the resonance column 112 needs to have a conductive property. Therefore, the material of the resonant pillar 112 is a conductive material, that is, the resonant pillar 112 is the conductive resonant pillar 112, and the material thereof is preferably a metal, such as copper, iron, aluminum, silver, gold, or an alloy thereof, and in some embodiments, the material of the conductive resonant pillar 112 may also be carbon or an allotrope of carbon, which is not limited in this embodiment.

In some embodiments of the present application, the resonant post 112 is a metallic resonant post 112.

In the embodiment of the present application, the resonant post 112 is a metal resonant post 112. In particular, the resonant column 112 is configured to resonantly conduct microwaves emitted by the microwave assembly 108, such that the microwaves fed into the resonant cavity 104 by the microwave assembly 108 are conducted from the second end of the resonant column 112 to the first end of the resonant column 112, thereby microwave-heating the aerosol-generating substrate on the mounting portion 106 and atomizing the aerosol-generating substrate into an aerosol.

Wherein, in order to satisfy the resonance requirement, the outer surface of the resonance column 112 needs to have a conductive property. Therefore, the resonant column 112 is made of metal, such as copper, iron, aluminum, silver, gold, or an alloy thereof.

In some embodiments of the present application, fig. 5 shows five schematic structural diagrams of an aerosol-generating device according to an embodiment of the present application, and as shown in fig. 5, the resonant column 112 includes: a cylinder 1124; a first metal film layer 1126, the first metal film layer 1126 covering the outer sidewall of the cylinder 1124.

In the present embodiment, the resonant pillar 112 specifically includes a pillar 1124 and a first metal thin film layer 1126. The resonant column 112 is configured to perform resonant conduction on the microwave emitted from the microwave assembly 108, so that the microwave fed into the resonant cavity 104 by the microwave assembly 108 is conducted from the second end of the resonant column 112 to the first end of the resonant column 112, wherein the first end of the resonant column 112 is close to the mounting portion 106, and thus the aerosol-generating substrate on the mounting portion 106 is heated by the microwave, so as to be atomized into aerosol.

Wherein, in order to satisfy the resonance requirement, the outer surface of the resonance column 112 needs to have a conductive property. Accordingly, the metal film layer covering the cylinder 1124 is disposed on the outer sidewall of the cylinder 1124, so that the outer surface of the resonant cylinder 112 has electrical conductivity, thereby performing a function of resonant conduction of the microwave emitted from the microwave assembly 108.

It can be understood that the metal thin film layer may be a metal simple substance material, or a metal alloy material. Preferably, the metal thin film layer may be made of copper, iron, aluminum, silver, gold, or an alloy of the above metals.

In some embodiments of the present application, fig. 6 shows six schematic structural views of an aerosol-generating device according to embodiments of the present application, and as shown in fig. 6, a housing 102 includes: a first outer housing 1021; the inner housing 1022 is connected to the first outer housing 1021 and located inside the first outer housing 1021, the inner housing 1022 is made of metal, and the resonant cavity 104 is located inside the inner housing 1022.

In the embodiment of the present application, the resonant cavity 104 is formed inside the housing 102, and the wall of the resonant cavity 104 has electrical conductivity, so that the microwaves generated by the microwave assembly 108 are confined in the resonant cavity 104 and prevented from leaking out. Specifically, the housing 102 includes a first outer housing 1021 and an inner housing 1022, the first outer housing 1021 may be made of an insulating material such as plastic, and may also be made of a metal material, the inner housing 1022 is located inside the first outer housing 1021 and connected to the outer housing 102, and the inner housing 1022 is a hollow structure in which the resonant cavity 104 is formed. Because the inner housing 1022 is made of metal, the microwave generated by the microwave module 108 can be confined in the resonant cavity 104, so that the microwave cannot be diffused to the external environment, thereby ensuring the safety of the aerosol generating apparatus 100.

Meanwhile, due to the dual structure of the first outer shell 1021 and the inner shell 1022, the first outer shell can be made of an insulating material, so that the use safety of the aerosol generating device 100 is further ensured.

The material of the inner housing 1022 may be copper, iron, aluminum, silver, gold, or an alloy of the above metals. This is not limited by the present application.

In some embodiments of the present application, fig. 7 shows a seventh structural schematic diagram of an aerosol-generating device according to embodiments of the present application, as shown in fig. 7, a housing 102 includes: the second outer housing 1023; and a conductive layer 1024 covering an inner sidewall of the second housing 1023, an outer side of the conductive layer 1024 being connected to the second housing 1023, and the resonant cavity 104 being located inside the conductive layer 1024.

In the embodiment of the present application, the resonant cavity 104 is formed inside the housing 102, and the wall of the resonant cavity 104 has electrical conductivity, so that the microwaves generated by the microwave assembly 108 are confined in the resonant cavity 104 and prevented from leaking out. Specifically, the housing 102 includes a second housing 1023 and a conductive layer 1024, and the conductive layer 1024 covers the inner side wall of the second housing 1023, so as to form a conductive shielding layer, and the microwave generated by the microwave assembly 108 can be confined in the resonant cavity 104 enclosed by the conductive layer 1024, so that the microwave cannot be diffused to the external environment, and the use safety of the aerosol generating device 100 is ensured.

Meanwhile, due to the dual structure of the second housing body 1023 and the conductive layer 1024, the second housing body 1023 can be made of an insulating material, so that the use safety of the aerosol generating device 100 is further ensured.

The conductive layer 1024 is preferably a metal conductive layer 1024, and the material of the conductive layer 1024 may be copper, iron, aluminum, silver, gold, or an alloy material of the above metals. This is not limited by the present application.

Referring to fig. 1, 2 and 3, in some embodiments of the present application, the aerosol generating device 100 further comprises: and the isolation cover 114 is arranged on the mounting part 106, and the isolation cover 114 is sleeved on the part of the optical fiber temperature sensing element 110 penetrating through the mounting part 106.

In the embodiment of the present application, the mounting portion 106 is provided with an isolation cover 114, and the isolation cover 114 is disposed corresponding to the through hole 1062 on the mounting portion 106 and is sleeved on the optical fiber temperature sensing element 110. Specifically, after the optical fiber temperature sensing element 110 passes through the through hole 1062 of the mounting portion 106, the optical fiber temperature sensing element 110 and the resonant cavity 104 are covered by the isolation cover 114, and the optical fiber temperature sensing element 110 and the resonant cavity 104 are isolated from the aerosol generating substrate by the isolation cover 114, so that the optical fiber temperature sensing probe 1102 is prevented from being in direct contact with the aerosol generating substrate, liquid substances and other dirt generated after the aerosol generating substrate is atomized are prevented from polluting the optical fiber temperature sensing probe, and the service life and the test accuracy of the optical fiber temperature sensor are improved.

Wherein the isolation cover 114 is a transparent isolation cover 114.

In some embodiments of the present application, the insulation cover 114 is a glass insulation cover 114, and the fiber temperature sensing element 110 is attached to an inner surface of the glass insulation cover 114.

In the embodiment of the present application, the isolation cover 114 is a glass isolation cover 114, and the glass isolation cover 114 has good light transmittance, corrosion resistance and wear resistance, and can effectively protect the optical fiber temperature sensing element 110. Meanwhile, the optical fiber temperature sensing element 110 is attached to the inner surface of the glass isolation cover 114, so that the temperature of the aerosol generating substrate can be collected more accurately, and the accuracy of temperature collection is improved.

In some embodiments of the present application, the fiber temperature-sensing probe 1102 is a cylindrical fiber temperature-sensing probe 1102, and the diameter of the cylindrical fiber temperature-sensing probe 1102 ranges from 0.2mm or more to 3mm or less.

In the embodiment of the present application, the optical fiber temperature sensing probe 1102 is specifically a cylindrical optical fiber temperature sensing probe 1102, and the diameter range of the optical fiber temperature sensing probe 1102 is 0.2mm to 3mm, so that on one hand, the volume of the aerosol generating device 100 can be reduced, and on the other hand, more optical fiber temperature sensing probes 1102 can be arranged in a limited volume, thereby improving the accuracy of temperature detection.

In some embodiments of the present application, the temperature measuring range of the optical fiber temperature sensing element 110 is: -20 ℃ to 400 ℃.

In the embodiment of the application, the aerosol generating device 100 can have larger smoke amount and satisfaction when the temperature of the aerosol generated by atomization is in the range of 160-180 ℃. Therefore, the temperature measuring range of the optical fiber temperature sensing element 110 is: in the range of-20 ℃ to 400 ℃, capable of effectively covering the temperature interval of the aerosol-generating substrate.

As shown in fig. 1, 2 and 3, in some embodiments of the present application, the microwave assembly 108 includes: a microwave introduction portion 1082 disposed on a sidewall of the housing 102, the microwave introduction portion 1082 being in communication with the cavity 104; the microwave emitting source 1084 is connected to the microwave introducing portion 1082, and the microwave output from the microwave emitting source 1084 is fed into the resonant cavity 104 through the microwave introducing portion 1082, so that the microwave is conducted in a direction from the second end of the resonant column 112 to the first end of the resonant column 112.

In the embodiment of the present application, the microwave assembly 108 includes a microwave emission source 1084 and a microwave introduction portion 1082. The microwave emitter 1084 is configured to generate microwaves, and the microwave introduction portion 1082 disposed on the sidewall of the housing 102 is configured to transfer the microwaves generated by the microwave emitter 1084 into the cavity 104. After the microwaves are fed into the resonant cavity 104 through the microwave introducing portion 1082, the microwaves can be conducted in a direction from the second end of the resonant column 112 to the first end of the resonant column 112, so that the microwaves can directly act on the aerosol generating substrate, thereby improving the atomization effect of the aerosol generating substrate.

In some embodiments of the present application, comprising: a first introduction part 10822 disposed on a sidewall of the housing 102, the first introduction part 10822 being connected to the microwave emission source 1084; a second lead-in 10824, a first end of the second lead-in 10824 being connected to the first lead-in 10822, the second lead-in 10824 being located within the cavity 104, and a second end of the second lead-in 10824 being directed towards the bottom wall of the cavity 104.

In the embodiment of the present application, the microwave introduction part 1082 has a two-stage structure, which includes a first introduction part 10822 and a second introduction part 10824, wherein the first introduction part 10822 is used for transmitting the microwaves generated by the microwave emission source 1084 to the cavity 104 along the extending direction of the first introduction part 10822, and further transmits the microwaves to the mounting part 106 through the second introduction part 10824.

Specifically, the first guiding member 10822 is inserted through the sidewall of the housing 102, and a first end of the first guiding member 10822 is connected to the microwave emitting source 1084, so that the microwaves generated by the microwave emitting source 1084 enter the microwave introducing portion 1082 through the first end of the first guiding member 10822. The second end of the first lead-in 10822 is coupled to the first end of the second lead-in 10824, and the second end of the second lead-in 10824 faces the bottom wall of the cavity 104. The microwaves are conducted from the bottom wall of the cavity 104 to the aerosol-generating substrate for microwave heating and atomization by conduction through the first and second inlets 10822 and 10824.

The first lead-in part is coaxially arranged with the microwave output end of the microwave emission source 1084, the second lead-in part is provided with a horizontal lead-in part and a vertical lead-in part, the axis of the horizontal lead-in part is parallel to the bottom wall of the resonant cavity 104, and the axis of the vertical lead-in part is perpendicular to the bottom wall of the resonant cavity 104. The horizontal leading-in part is connected with the vertical leading-in part through a bending part, and the horizontal leading-in part and the first leading-in part are coaxially arranged. By providing the microwave introduction portion 1082 in the above manner, all of the microwaves generated by the microwave radiation source 1084 can enter the cavity 104 and be conducted through the cavity 104 via the resonating column 112.

In some embodiments of the present application, the microwave introduction portion 1082 includes: and a third introduction member disposed on a sidewall of the housing 102, wherein a first end of the third introduction member is connected to the microwave emission source 1084, and a second end of the third introduction member faces the resonant column 112.

In the embodiment of the present application, the third guiding-in part is coaxially disposed with the microwave output end of the microwave emission source 1084, the first end of the third guiding-in part is connected to the microwave emission source 1084, the second end of the third guiding-in part faces the resonant column 112, the third guiding-in part is coaxially disposed with the microwave output end of the microwave emission source 1084, and the third guiding-in part is connected to the resonant column 112, so that the microwaves output by the microwave emission source 1084 are all guided into the resonant cavity 104 by directly guiding the microwaves to the resonant column 112.

In some embodiments of the present application, fig. 8 shows an eighth schematic structural diagram of an aerosol-generating device according to embodiments of the present application, and as shown in fig. 8, the aerosol-generating device 100 further includes: and a recess 116 disposed on the bottom wall of the resonant cavity 104, wherein the second end of the second lead-in is located in the recess 116.

In the embodiment of the present application, the aerosol generating device 100 further includes a recess 116, the recess 116 is disposed on the bottom wall of the resonant cavity 104, and the recess 116 is disposed opposite to the second end of the second introduction member, the second end of the second introduction member extends into the recess 116, so that the microwave entering the resonant cavity 104 can be conducted along the direction from the second end to the first end of the resonant column 112, and the energy loss during the microwave conduction process is reduced.

It is to be understood that, in the claims, the specification and the drawings of the specification of the present application, the term "plurality" means two or more, unless explicitly defined otherwise, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for the purpose of more conveniently describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have the particular orientation described, be constructed in a particular orientation, and be operated, and thus the description should not be construed as limiting the present application; the terms "connect," "mount," "secure," and the like are to be construed broadly, and for example, "connect" may refer to a fixed connection between multiple objects, a removable connection between multiple objects, or an integral connection; the multiple objects may be directly connected to each other or indirectly connected to each other through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art based on the above data.

In the claims, specification, and drawings of the specification, the description of the terms "one embodiment," "some embodiments," "a specific embodiment," and so forth, in the application, means 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 application. The schematic representations of the above terms in the claims, the specification and the drawings of the specification of the present application 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 a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (21)

1. An aerosol generating device, comprising:

the shell is provided with a resonant cavity;

a mounting portion disposed in the housing at a first end of the resonant cavity for receiving an aerosol generating substrate;

a microwave assembly connected to the housing for emitting microwaves into the resonant cavity to heat the aerosol generating substrate to generate an aerosol;

the optical fiber temperature sensing piece is arranged in the resonant cavity and used for detecting the temperature of the aerosol generating substrate, and at least part of the optical fiber temperature sensing piece penetrates through the mounting part.

2. An aerosol generating device according to claim 1, wherein the mounting portion is provided with a through hole communicating with the resonant cavity, and at least a part of the optical fiber temperature sensing element passes through the through hole.

3. An aerosol generating device according to claim 2, wherein the fibre-optic temperature-sensing element comprises N fibre-optic temperature-sensing probes;

the number of the through holes is N, the N through holes correspond to the N optical fiber temperature-sensing probes one by one, and N is an integer larger than 1.

4. An aerosol generating device according to claim 3, further comprising:

the resonant column is located in the resonant cavity, the first end of the resonant column is connected with the mounting part, and the second end of the resonant column is connected with the second end of the resonant cavity.

5. An aerosol-generating device according to claim 4,

the resonant cavity is a cylindrical resonant cavity, the mounting part is a hollow cylindrical mounting part, and the cylindrical resonant cavity and the cylindrical mounting part are coaxially arranged;

the resonant column and the cylindrical resonant cavity are coaxially arranged.

6. An aerosol generating device according to claim 4, wherein the resonant post comprises a cavity extending through the resonant post in the direction of the axis of the resonant post.

7. An aerosol generating device according to claim 6, further comprising:

a controller for controlling the microwave assembly in dependence on the temperature of the aerosol-generating substrate;

the optical fiber temperature sensing member further includes:

and the transmission line is positioned in the cavity and is connected with the optical fiber temperature sensing probe and the controller.

8. An aerosol generating device according to claim 4, wherein the resonant post is a conductive resonant post.

9. An aerosol generating device according to claim 4, wherein the resonant post is a metallic resonant post.

10. An aerosol generating device according to claim 4, wherein the resonant post comprises:

a cylinder;

the first metal thin film layer covers the outer side wall of the column.

11. An aerosol generating device according to claim 1, wherein the housing comprises:

a first outer case;

the inner shell is connected with the first outer shell and located in the first outer shell, the inner shell is made of metal materials, and the resonant cavity is located in the inner shell.

12. An aerosol generating device according to claim 1, wherein the housing comprises:

a second outer housing;

and the conducting layer covers the inner side wall of the second outer shell, the outer side of the conducting layer is connected with the second outer shell, and the resonant cavity is positioned on the inner side of the conducting layer.

13. An aerosol generating device according to any of claims 1 to 12, further comprising:

the isolation cover is arranged on the mounting part, and the isolation cover is sleeved on the part of the optical fiber temperature sensing piece penetrating through the mounting part.

14. An aerosol generating device according to claim 13, wherein the shroud is a glass shroud and the temperature-sensitive optical fibre element is attached to an inner surface of the glass shroud.

15. An aerosol generating device according to any one of claims 3 to 10, wherein the fibre-optic temperature-sensing probe is a cylindrical fibre-optic temperature-sensing probe having a diameter in the range of 0.2mm or more and 3mm or less.

16. An aerosol generating device according to claim 15, wherein the diameter of the cylindrical fibre-optic temperature-sensitive probe is in a range of 0.5mm or more and 1mm or less.

17. An aerosol generating device according to any one of claims 1 to 12, wherein the temperature sensing range of the fibre optic temperature sensing element is: -20 ℃ to 400 ℃.

18. An aerosol generating device according to any of claims 4 to 10, wherein the microwave assembly comprises:

the microwave leading-in part is arranged on the side wall of the shell and communicated with the resonant cavity;

and the microwave emission source is connected with the microwave leading-in part, and microwaves output by the microwave emission source are fed into the resonant cavity through the microwave leading-in part, so that the microwaves are conducted along the direction from the second end of the resonant column to the first end of the resonant column.

19. An aerosol generating device according to claim 18, wherein the microwave introduction portion comprises:

the first lead-in part is arranged on the side wall of the shell and is connected with the microwave emission source;

and a first end of the second lead-in part is connected with the first lead-in part, the second lead-in part is positioned in the resonant cavity, and a second end of the second lead-in part faces to the bottom wall of the resonant cavity.

20. An aerosol generating device according to claim 18, wherein the microwave introduction portion comprises:

and the third lead-in part is arranged on the side wall of the shell, the first end of the third lead-in part is connected with the microwave emission source, and the second end of the third lead-in part faces the resonance column.

21. An aerosol generating device according to claim 19, further comprising:

and the recessed part is arranged on the bottom wall of the resonant cavity, and the second end of the second lead-in piece is positioned in the recessed part.

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