CN116250653A

CN116250653A - Aerosol generating device, control method thereof, control device, and readable storage medium

Info

Publication number: CN116250653A
Application number: CN202111498340.8A
Authority: CN
Inventors: 尹坤任; 梁峰; 杜靖
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2023-06-13
Also published as: WO2023103654A1; EP4445768A1; KR20240113813A

Abstract

The invention provides an aerosol generating device, a control method thereof, a control device and a readable storage medium. Wherein the aerosol generating device comprises: a housing including an atomizing chamber; the microwave assembly is connected with the shell and is used for feeding microwaves into the atomization cavity; the voltage acquisition component is arranged in the atomizing cavity and used for acquiring a feedback voltage value of the atomizing cavity; and the controller is connected with the voltage acquisition component and used for determining the target operating frequency of the microwave component according to the feedback voltage value. The invention realizes that the accuracy and the detection efficiency of the detected optimal frequency point of the microwave component are ensured, and simultaneously, a circulator with larger volume is not required to be additionally arranged in the atomization cavity, thereby being beneficial to miniaturization of products, reducing the production cost, ensuring the operation efficiency of the aerosol generating device because the voltage acquisition component does not generate a large amount of heat in the operation process.

Description

Aerosol generating device, control method thereof, control device, and readable storage medium

Technical Field

The invention belongs to the technical field of electronic cigarettes, and particularly relates to an aerosol generating device, a control method thereof, a control device and a readable storage medium.

Background

A Heat Not Burn (HNB) device is a combination of a heating device plus an aerosol generating substrate (treated plant leaf product). The external heating device can generate aerosol by heating the aerosol generating substrate to a temperature which is not enough for combustion, and can enable the aerosol generating substrate to generate aerosol required by a user on the premise of not combusting.

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 device has long preheating waiting time before use, can not be freely stopped, and the aerosol generating substrate is carbonized unevenly, so that the aerosol generating substrate is not sufficiently baked and has low utilization rate; secondly, the HNB appliance heating plate is easy to generate dirt in the aerosol generating substrate extractor and the heating plate base, and is difficult to clean; the partial aerosol contacting the heating element can generate the substrate with overhigh temperature and partial cracking, and release 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 atomization are as follows: a. the microwave heating is radiation heating, is not heat conduction, and can realize pumping and stopping at once; b. the heating plate is not needed, so that the problems of broken pieces and cleaning of the heating plate are avoided; c. the aerosol generating substrate has high utilization rate, high taste consistency and taste similar to cigarettes.

In the prior art, the aerosol generating device determines the optimal frequency point of the microwave component in a mode of detecting standing wave ratio through the circulator, and the miniaturization design of the aerosol generating device cannot be met due to the large size of the circulator.

Disclosure of Invention

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

To this end, a first aspect of the invention proposes an aerosol-generating device.

A second aspect of the present invention proposes a control method of an aerosol-generating device.

A third aspect of the present invention proposes a control device for an aerosol-generating device.

A fourth aspect of the present invention proposes a control device for an aerosol-generating device.

A fifth aspect of the present invention proposes a readable storage medium.

A sixth aspect of the invention proposes an aerosol-generating device.

In view of this, according to a first aspect of the present invention, there is provided an aerosol-generating device comprising: a housing including an atomizing chamber; the microwave assembly is connected with the shell and is used for feeding microwaves into the atomization cavity; the voltage acquisition component is arranged in the atomizing cavity and used for acquiring a feedback voltage value of the atomizing cavity; and the controller is connected with the voltage acquisition component and used for determining the target operating frequency of the microwave component according to the feedback voltage value.

The aerosol generating device comprises a shell, a microwave assembly, a voltage acquisition assembly and a controller, wherein an atomization cavity is arranged in the shell, aerosol generating substrates can be contained in the atomization cavity, the microwave assembly is arranged on the shell, microwaves can be fed into the atomization cavity, and the aerosol generating substrates contained in the atomization cavity can be heated and atomized under the action of the microwaves fed by the microwave assembly. Microwaves generated by the microwave assembly, due to the resonant nature of the atomizing chamber, generate an electrical current in the chamber wall structure of the atomizing chamber. The voltage acquisition component can acquire the feedback voltage value of the current on the cavity wall structure of the atomizing cavity, the voltage acquisition component transmits the feedback voltage value to the controller, and the controller can judge the energy of the cavity wall of the atomizing cavity according to the feedback voltage value.

Specifically, when the microwave assembly is in sweep frequency operation, the voltage acquisition assembly continuously acquires feedback voltage values on the cavity wall of the atomization cavity, and the controller records the acquired feedback voltage values after the microwave assembly is in sweep frequency operation. The controller compares the magnitudes of the feedback voltage values, and takes the operating frequency corresponding to the largest feedback voltage value in the feedback voltage values as the target operating frequency. It can be understood that if the feedback voltage value is large, the energy fed into the atomizing cavity by the microwaves with the current frequency is more, so that the operation frequency corresponding to the maximum feedback voltage value is the resonance frequency of the atomizing cavity, and therefore the microwave assembly is controlled to operate according to the operation frequency corresponding to the maximum feedback voltage value, so that the microwave assembly can operate on the optimal frequency point, and the heating and atomizing efficiency of the aerosol generating device on the aerosol generating substrate is improved.

Illustratively, the microwave generating assembly is controlled to operate in a swept frequency range having a minimum frequency of 2.2G and a maximum frequency of 2.57G. In the sweep frequency operation process, the microwave component starts to operate from the frequency minimum value, and the microwave component is controlled to be increased by 10MHz every 2 milliseconds until the frequency maximum value is reached. Each time the operating frequency is switched, a feedback voltage value is recorded. After the frequency sweep is completed, the operating frequency corresponding to the maximum value in the feedback voltage value is taken as the target operating frequency, and the microwave assembly is controlled to feed microwaves into the atomization cavity according to the target operating frequency.

In the related art, a circulator for detecting standing wave ratio is arranged in an aerosol generating device, the space occupied in the aerosol generating device is large, and the circulator generates heat in the operation process, so that the efficiency of the whole system is reduced.

According to the invention, the voltage acquisition component capable of acquiring the feedback voltage value at the cavity wall of the atomizing cavity is arranged in the atomizing cavity, so that the controller can determine the current energy feed-in condition in the atomizing cavity according to the feedback voltage value, and therefore, the resonance frequency of the atomizing cavity, namely the optimal frequency point of the operation of the microwave component, is determined, the atomizing component is controlled according to the optimal frequency point, and the heating and atomizing efficiency of the aerosol generating device on the aerosol generating substrate can be improved. The accuracy and the detection efficiency of the detected optimal frequency point of the microwave component are ensured, a circulator with larger volume is not required to be additionally arranged in the atomization cavity, miniaturization of products is facilitated, production cost is reduced, a large amount of heat cannot be generated by the voltage acquisition component in the operation process, and the operation efficiency of the aerosol generating device is ensured.

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

in one possible design, the voltage acquisition assembly includes: the feed point is arranged on the inner wall of the shell; and the first end of the filtering component is connected with the feed point, and the second end of the filtering component is connected with the controller.

In this design, the voltage acquisition assembly includes a feed point and a filter assembly. The inner wall of the shell is provided with a feed point, namely, the inner cavity of the atomizing cavity is provided with the feed point, the voltage signal at the inner side wall of the atomizing cavity is collected through the feed point, and the voltage signal is filtered and transmitted to the controller through the filtering component, so that the controller can collect the feedback voltage value at the atomizing cavity through the feed point.

In the case of microwaves fed into the nebulization chamber, a current is generated in the wall structure of the nebulization chamber due to the resonance characteristic of the nebulization chamber. The invention sets the feed point in the atomizing cavity, thereby realizing the collection of the feedback voltage value at the cavity wall of the atomizing cavity.

In one possible design, the filtering component includes: the first end of the diode is connected with the feed point, and the second end of the diode is grounded; the first end of the filter circuit is connected with the first end of the diode, the second end of the filter component is connected with the second end of the diode, and the filter circuit is connected with the controller; wherein the second end to the first end of the diode is conducted.

In the design, the filter assembly comprises a diode and a filter circuit, the diode is a rectifier diode, current at the inner wall of the atomizing cavity is rectified into a direct current signal, the direct current signal is filtered through the filter circuit, the filtered direct current signal is transmitted to the controller, and the feedback voltage value at the cavity wall of the atomizing cavity can be determined by the filtered direct current signal received by the controller.

Specifically, a diode is connected in parallel with the filter circuit. The first end of the diode is the negative pole of the diode, the negative pole of the diode is connected with the feed point, the positive pole of the diode is connected with the grounding end, the controller is connected with the rectifying circuit, and the feedback voltage value of negative current on the cavity wall of the atomizing cavity can be acquired through the negative pole of the diode.

According to the invention, the diode is arranged in parallel with the filter circuit, and the cathode of the diode is connected with the feed point, so that the filter component can collect the feedback voltage value of the negative current on the cavity wall of the atomizing cavity through the feed point.

In one possible design, the filtering component includes: a diode, a first end of which is connected with the feed point; the first end of the filter circuit is connected with the second end of the diode, the second end of the filter circuit is grounded, and the filter circuit is connected with the controller; wherein the first end to the second end of the diode are conducted.

Specifically, a diode is connected in series with the filter circuit. The first section of the diode is the positive pole of the diode, the positive pole of the diode is connected with the feed point, the negative pole of the diode is connected with the controller through the rectifying circuit, and the feedback voltage value of the forward current on the cavity wall of the atomizing cavity can be acquired through the positive pole of the diode.

According to the invention, the diode is arranged in series with the filter circuit, and the anode of the diode is connected with the feed point, so that the filter component can collect the feedback voltage value of the forward current on the cavity wall of the atomizing cavity through the feed point.

In one possible design, the filter circuit includes any one or a combination of the following: a capacitance filter circuit, a resistance capacitance filter circuit and an inductance capacitance filter circuit.

In the design, the filter circuit is selected from a direct current filter circuit, and specifically, one or a combination of a capacitance filter circuit, a resistance capacitance filter circuit (RC) and an inductance capacitance filter circuit (LC).

In some embodiments, the filter circuit is selected to be an lc filter circuit, and the diode is connected in series with the lc filter circuit.

In these embodiments, the first end of the diode is connected to the feed point, the second end of the diode is connected to the series inductor and capacitor, the capacitor is connected to the controller, and the common ground of the capacitor and controller is grounded. The diode is conducted from the first end to the second end, the current at the cavity wall of the atomizing cavity is rectified by the diode to become a direct current signal, the direct current signal is filtered by the inductance capacitance filter circuit and then is transmitted to the controller, and the controller processes the direct current signal to obtain a feedback voltage value.

In one possible design, the feed point comprises: the through hole is arranged on the bottom wall of the atomization cavity, and the filtering component is connected with the wall of the through hole; or the conducting ring is arranged on the inner wall of the atomizing cavity, the conducting ring is close to the bottom wall of the atomizing cavity, and the filtering component is connected with the conducting ring; or a lead, the first end of which is connected with the bottom wall of the atomizing cavity, and the second end of which is connected with the filter component.

In this design, the feed point may optionally be provided in a variety of forms including, but not limited to, vias, conductive loops, and leads.

In some embodiments, the feed point is set as a through hole, the through hole is formed in the bottom wall position of the atomizing cavity, the sampling end of the filtering component is connected with the hole wall of the through hole, and the feedback voltage value of the hole wall position of the bottom wall of the atomizing cavity is collected.

In other embodiments, the feed point is provided as a conductive loop, which may be particularly selected as a copper loop. The conducting ring is arranged on the inner side wall of the atomizing cavity, the conducting ring is arranged at a position close to the bottom wall of the atomizing cavity, the sampling end of the filtering component is connected with the conducting ring, the conducting ring is arranged at the position of the cavity wall of the atomizing cavity, and the conducting ring can guide current at the position of the cavity wall to the filtering component, so that the feedback voltage value at the position of the cavity wall of the atomizing cavity is collected through the conducting ring.

According to a second aspect of the present invention, there is provided a control method of an aerosol-generating device comprising a microwave assembly, an atomizing chamber and a voltage acquisition assembly, the control method of the aerosol-generating device comprising: controlling the microwave assembly to sweep frequency in a set frequency range; collecting a plurality of feedback voltage values of the atomizing cavity through the voltage collecting assembly in a state that the microwave assembly is in sweep frequency operation; determining a target frequency in a set frequency range according to the feedback voltage values; the microwave assembly is controlled to operate at a target frequency.

The aerosol generating device comprises a shell, a microwave component, a voltage acquisition component and a controller, wherein an atomization cavity is arranged in the shell, aerosol generating matrixes can be contained in the atomization cavity, the microwave component is arranged on the shell and can feed microwaves into the atomization cavity, and the aerosol generating matrixes contained in the atomization cavity can be heated and atomized under the action of the microwaves fed by the microwave component. Microwaves generated by the microwave assembly, due to the resonant nature of the atomizing chamber, generate an electrical current in the chamber wall structure of the atomizing chamber.

And under the condition that the aerosol generating substrate is positioned in the atomizing cavity, controlling the microwave assembly to start to perform sweep operation within a set frequency range, and continuously collecting a plurality of feedback voltage values at the cavity wall of the atomizing cavity through the voltage collecting assembly in the process that the microwave assembly is in sweep operation. It is understood that the plurality of feedback voltage values correspond to a plurality of operating frequencies during swept operation of the microwave assembly. By analyzing and processing the plurality of feedback voltage values, a target frequency in a set frequency range can be obtained. The microwave assembly is controlled to feed microwaves into the atomizing cavity according to a target frequency so as to heat and atomize aerosol generating substrates in the atomizing cavity.

It can be understood that by collecting the feedback voltage value during the frequency sweep and determining the target frequency according to the feedback voltage value, the target frequency is the operating frequency closest to the resonant frequency of the cavity in the radio frequency range, i.e. the optimal frequency point during the operation of the microwave assembly. By controlling the aerosol generating device to feed microwaves into the atomizing cavity according to the target frequency, the atomization efficiency of aerosol generating matrixes in the atomizing cavity can be improved.

In addition, according to the control method of the aerosol generating device in the above technical solution provided by the present invention, the following additional technical features may be provided:

in one possible design, determining the target frequency within the set frequency range based on the feedback voltage value further includes: obtaining a maximum voltage value in a plurality of feedback voltage values; and determining a target frequency corresponding to the maximum voltage value in the set frequency range according to the maximum voltage value.

In the design, when the microwave assembly is in sweep frequency operation, the voltage acquisition assembly continuously acquires feedback voltage values on the cavity wall of the atomization cavity, and the controller records the acquired feedback voltage values after the microwave assembly is in sweep frequency operation. The controller compares the magnitudes of the feedback voltage values, and takes the operating frequency corresponding to the maximum voltage value in the feedback voltage values as the target operating frequency.

It can be understood that if the feedback voltage value is large, the energy fed into the atomizing cavity by the microwaves with the current frequency is more, so that the operating frequency corresponding to the maximum voltage value in the feedback voltage values is the target frequency in the radio frequency range, and therefore the microwave component is controlled to operate according to the operating frequency corresponding to the maximum feedback voltage value, so that the microwave component can operate on the optimal frequency point, and the heating and atomizing efficiency of the aerosol generating device on the aerosol generating substrate is improved.

In one possible design, controlling the sweep operation of the microwave assembly over a set frequency range includes: controlling the microwave assembly to start to operate at a first frequency within a set frequency range; and adjusting the operating frequency of the microwave assembly according to the set adjustment value every first set time interval until the operating frequency reaches a second frequency in a set frequency range.

In this design, the microwave assembly is controlled to sweep through a set frequency range. Specifically, the microwave assembly is controlled to start to operate at a lower first frequency in the set frequency range, and the microwave assembly is controlled to adjust the operating frequency to a set adjustment value to operate until the operating frequency is adjusted to a second frequency in the set frequency range after a first set period of time passes.

It is understood that the first frequency is greater than the second frequency, or the first frequency is less than the second frequency. In the process of frequency sweeping operation, the microwave component can be operated from low to high in a set frequency range, and can also be operated from high to low in a set frequency range.

According to the invention, the set adjustment value is adjusted every time the operation frequency of the microwave component passes through the first set time length, so that the microwave component has enough time length to feed microwaves into the atomization cavity at each operation frequency, the correspondence between a plurality of feedback voltage values and a plurality of operation frequencies in a set frequency range is improved, and the accuracy of obtaining the target frequency is further improved.

In one possible design, collecting, by the voltage collection assembly, a plurality of feedback voltage values of the atomizing chamber with the microwave assembly in a swept frequency operating state includes: and collecting feedback voltage values of the atomizing cavity every a first set time length when the microwave assembly is in an operating state.

In the design, in the sweep frequency operation process, feedback voltage values of the atomizing cavity are collected once every a first set time length, and the collected feedback voltage values can be in one-to-one correspondence with the operation frequencies in the set frequency range by corresponding the time for collecting the feedback voltage values with the time for adjusting the operation frequency in the sweep frequency operation process of the microwave component, so that accurate target frequencies can be conveniently found according to the maximum voltage values in the feedback voltage values.

In some embodiments, the voltage acquisition component continuously detects a feedback voltage value of the atomizing cavity, and records the current feedback voltage value every a first set period of time.

In other implementations, the voltage acquisition component detects and records the current feedback voltage value every first set period of time.

In one possible design, after controlling the microwave assembly to operate at the target frequency, the method further comprises: and returning to execute the step of controlling the sweep frequency operation of the microwave assembly within the set frequency range until an operation stopping instruction is received under the condition that the microwave assembly operates according to the target frequency for a second set time.

In the design, after the target frequency is determined, the microwave assembly is controlled to run for a second set time period according to the target frequency, and then the step of controlling the microwave assembly to sweep frequency to run and search the target frequency is performed again. The aerosol generating substrate in the aerosol generating device is atomized along with the operation of the microwave component by heating, so that the aerosol generating substrate in the atomizing cavity is changed, and the resonant frequency of the atomizing cavity is changed, so that the method and the device realize continuous updating of the target frequency of the operation of the microwave component by controlling the microwave component to operate for a second set time according to the target frequency and then returning to execute the mode of searching the target frequency again, ensure that the microwave component in the aerosol generating device can work at an optimal frequency point for a long time, and improve the atomizing effect of the aerosol generating device on the aerosol generating substrate.

A third aspect of the present invention provides a control device for an aerosol-generating device, the aerosol-generating device comprising a microwave assembly, an atomizing chamber and a voltage acquisition assembly, the control device comprising: the control module is used for controlling the microwave assembly to sweep frequency in a set frequency range; the acquisition module is used for acquiring a plurality of feedback voltage values of the atomizing cavity through the voltage acquisition assembly in a state that the microwave assembly is in sweep frequency operation; the determining module is used for determining target frequencies in a set frequency range according to the feedback voltage values; and the determining module is also used for controlling the microwave assembly to operate according to the target frequency.

A fourth aspect of the present invention proposes a control device of an aerosol-generating device, comprising: a memory in which a program or instructions are stored; a processor executing a program or instructions stored in a memory to realize the steps of the control method of the aerosol-generating device in the second aspect described above. Thus having all the advantageous technical effects of the control method of the aerosol-generating device according to the second aspect described above, it will not be described in detail here.

A fifth aspect of the present invention proposes a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps of a method of controlling an aerosol-generating device according to any of the possible designs described above. Therefore, the control method of the aerosol generating device according to any of the above possible designs has all the advantages and will not be described in detail herein.

A sixth aspect of the present invention proposes an aerosol-generating device comprising: the control device of the aerosol-generating device in the above third and/or fourth aspect, and/or the readable storage medium in the above fifth aspect. Therefore, the control device of the aerosol generating device and/or the whole beneficial technical effects of the readable storage medium are not repeated.

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 a schematic configuration of an aerosol-generating device in a first embodiment of the present invention;

Fig. 2 shows one of the schematic diagrams of the filter assembly in the first embodiment of the invention;

FIG. 3 shows a second schematic diagram of a filter assembly in a first embodiment of the invention;

fig. 4 shows one of flow charts of a control method of an aerosol-generating device in a second embodiment of the invention;

fig. 5 shows a second flow chart of a control method of the aerosol-generating device according to the second embodiment of the invention;

fig. 6 shows a third flow chart of a control method of the aerosol-generating device in the second embodiment of the invention;

fig. 7 shows a schematic view of an aerosol-generating device in a second embodiment of the invention;

fig. 8 shows a schematic block diagram of a control device of an aerosol-generating device in a third embodiment of the invention;

fig. 9 shows a schematic block diagram of a control device of an aerosol-generating device in a fourth embodiment of the invention.

The correspondence between the reference numerals and the component names in fig. 1 to 3 is:

100 aerosol generating device, 120 casing, 122 atomizing chamber, 140 microwave subassembly, 160 voltage acquisition subassembly, 162 feed point, 164 filter subassembly, 1642 diode, 1644 filter circuit, 180 controller.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention 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 invention 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, however, 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 device, a control method of an aerosol-generating device, a control device of an aerosol-generating device, and a readable storage medium according to some embodiments of the invention are described below with reference to fig. 1 to 9.

Embodiment one:

as shown in fig. 1, there is provided an aerosol-generating device 100 according to a first embodiment of the present invention, including: the housing 120, the nebulization chamber 122, the microwave assembly 140, the voltage acquisition assembly 160, and the controller 180.

An atomization cavity 122 is arranged in the shell 120;

the microwave assembly 140 is connected to the housing 120 for feeding microwaves into the nebulization chamber 122;

The voltage acquisition component 160 is disposed in the atomization cavity 122 and is used for acquiring a feedback voltage value of the atomization cavity 122;

the controller 180 is connected to the voltage acquisition assembly 160 for determining a target operating frequency of the microwave assembly 140 based on the feedback voltage value.

The aerosol generating device 100 provided in this embodiment includes a housing 120, a microwave assembly 140, a voltage acquisition assembly 160 and a controller 180, an atomization cavity 122 is disposed in the housing 120, an aerosol generating substrate can be contained in the atomization cavity 122, the microwave assembly 140 is mounted on the housing 120, microwaves can be fed into the atomization cavity 122 by the microwave assembly 140, and the aerosol generating substrate contained in the atomization cavity 122 can be atomized by heating under the action of the microwaves fed by the microwave assembly 140. Microwaves generated by the microwave assembly 140, due to the resonant nature of the nebulization chamber 122, generate an electric current in the chamber wall structure of the nebulization chamber 122. The voltage acquisition component 160 can acquire the feedback voltage value of the current on the cavity wall structure of the atomization cavity 122, the voltage acquisition component 160 transmits the feedback voltage value to the controller 180, and the controller 180 can judge the energy at the cavity wall of the atomization cavity 122 according to the feedback voltage value.

Specifically, during the sweep operation of the microwave assembly 140, the voltage acquisition assembly 160 continuously acquires the feedback voltage values on the cavity wall of the atomizing cavity 122, and the controller 180 records the acquired feedback voltage values, and after the sweep operation of the microwave assembly 140 is completed. The controller 180 compares the magnitudes of the plurality of feedback voltage values, and takes the operating frequency corresponding to the largest feedback voltage value among the plurality of feedback voltage values as the target operating frequency. It can be understood that, if the feedback voltage value is large, the energy fed into the atomizing chamber 122 by the microwaves with the current frequency is more, so that the operation frequency corresponding to the maximum feedback voltage value is the resonant frequency of the atomizing chamber 122, and therefore the microwave assembly 140 is controlled to operate according to the operation frequency corresponding to the maximum feedback voltage value, so that the microwave assembly 140 can operate at the optimal frequency point, and the heating and atomizing efficiency of the aerosol generating device 100 on the aerosol generating substrate is improved.

Illustratively, the microwave generating assembly is controlled to operate in a swept frequency range having a minimum frequency of 2.2G and a maximum frequency of 2.57G. During the sweep operation, the microwave assembly 140 starts to operate from the frequency minimum, and the microwave assembly 140 is controlled to increase by 10MHz every 2 milliseconds until the frequency maximum is reached. Each time the operating frequency is switched, a feedback voltage value is recorded. After the sweep is completed, the microwave assembly 140 is controlled to feed microwaves into the atomizing chamber 122 according to the target operating frequency by taking the operating frequency corresponding to the maximum value of the feedback voltage values as the target operating frequency.

In this embodiment, by providing the voltage acquisition component 160 capable of acquiring the feedback voltage value at the cavity wall of the atomizing cavity 122 in the atomizing cavity 122, it is realized that the controller 180 can determine the current energy feeding condition in the atomizing cavity 122 according to the feedback voltage value, so as to determine the resonant frequency of the atomizing cavity 122, that is, the optimal frequency point of the operation of the microwave component 140, and control the atomizing component according to the optimal frequency point, so that the heating and atomizing efficiency of the aerosol generating device 100 on the aerosol generating substrate can be improved. While ensuring the accuracy and detection efficiency of the detected optimal frequency point of the microwave assembly 140, a circulator with larger volume is not required to be additionally arranged in the atomization cavity 122, thereby being beneficial to miniaturization of products, reducing production cost, ensuring the operation efficiency of the aerosol generating device 100 because the voltage acquisition assembly 160 does not generate a large amount of heat in the operation process.

In addition, the aerosol generating device 100 according to the above-described technical solution provided in the present embodiment may further have the following additional technical features:

as shown in fig. 1, in any of the above embodiments, the voltage acquisition assembly 160 includes: a feed point 162 and a filter component 164.

The feeding point 162 is disposed on the inner wall of the housing 120;

a first end of the filter assembly 164 is connected to the feeding point 162 and a second end of the filter assembly 164 is connected to the controller 180.

In this embodiment, the voltage acquisition component 160 includes a feed point 162 and a filtering component 164. The feeding point 162 is arranged on the inner wall of the shell 120, namely the feeding point 162 is arranged in the inner cavity of the atomization cavity 122, the voltage signal at the inner side wall of the atomization cavity 122 is collected through the feeding point 162, the voltage signal is filtered through the filtering component 164 and transmitted to the controller 180, and the feedback voltage value at the atomization cavity 122 can be collected through the feeding point 162 by the controller 180.

In the case of microwaves fed into the nebulizing chamber 122, an electric current is generated in the chamber wall structure of the nebulizing chamber 122 due to the resonance characteristic of the nebulizing chamber 122. In this embodiment, the feeding point 162 is disposed in the atomizing chamber 122, so as to collect the feedback voltage value at the chamber wall of the atomizing chamber 122.

As shown in fig. 2, in any of the above embodiments, the filtering component 164 includes: a diode 1642 and a filter circuit 1644.

A first end of the diode 1642 is connected to the feed point 162, and a second end of the diode 1642 is grounded;

a first end of the filter circuit 1644 is connected to a first end of the diode 1642, a second end of the filter assembly 164 is connected to a second end of the diode 1642, and the filter circuit 1644 is connected to the controller 180;

wherein the second terminal to the first terminal of the diode 1642 is conductive.

In this embodiment, the filtering component 164 includes a diode 1642 and a filtering circuit 1644, the diode 1642 is a rectifying diode 1642, the current at the inner wall of the atomizing chamber 122 is rectified into a dc signal, the dc signal is filtered by the filtering circuit 1644, the filtered dc signal is sent to the controller 180, and the feedback voltage value at the chamber wall of the atomizing chamber 122 can be determined by the filtered dc signal received by the controller 180.

Specifically, a diode 1642 is connected in parallel with the filter circuit 1644. The first end of the diode 1642 is the cathode of the diode 1642, the cathode of the diode 1642 is connected with the feeding point 162, the anode of the diode 1642 is connected with the grounding end, the controller 180 is connected with the rectifying circuit, and the feedback voltage value of the negative current on the cavity wall of the atomizing cavity 122 can be acquired through the cathode of the diode 1642.

The present embodiment achieves that the filter assembly 164 collects the feedback voltage value of the negative current on the chamber wall of the nebulizing chamber 122 through the feeding point 162 by arranging the diode 1642 in parallel with the filter circuit 1644 and connecting the negative electrode of the diode 1642 to the feeding point 162.

As shown in fig. 3, in any of the above embodiments, the filtering component 164 includes: a diode 1642 and a filter circuit 1644.

A first end of the diode 1642 is connected to the feed point 162;

a first end of the filter circuit 1644 is connected to a second end of the diode 1642, a second end of the filter circuit 1644 is grounded, and the filter circuit 1644 is connected to the controller 180;

wherein the first terminal to the second terminal of the diode 1642 is conductive.

Specifically, a diode 1642 is connected in series with the filter circuit 1644. The first segment of the diode 1642 is the anode of the diode 1642, the anode of the diode 1642 is connected with the feeding point 162, the cathode of the diode 1642 is connected with the controller 180 through the rectifying circuit, and the feedback voltage value of the forward current on the cavity wall of the atomizing cavity 122 can be collected through the anode of the diode 1642.

The present embodiment achieves that the filter assembly 164 collects the feedback voltage value of the forward current on the chamber wall of the nebulization chamber 122 through the feeding point 162 by arranging the diode 1642 in series with the filter circuit 1644 and connecting the anode of the diode 1642 to the feeding point 162.

In any of the above embodiments, the filter circuit 1644 includes any one or combination of: a capacitance filter circuit 1644, a resistance capacitance filter circuit 1644, and an inductance capacitance filter circuit 1644.

In this embodiment, the filter circuit 1644 is selected from a dc filter circuit 1644, and specifically may be one or a combination of a capacitive filter circuit 1644, a resistive-capacitive filter circuit 1644 (RC), and an inductive-capacitive filter circuit 1644 (LC).

In some embodiments, the filter circuit 1644 is selected to be an lc filter circuit 1644, and the diode 1642 is connected in series with the lc filter circuit 1644.

In these embodiments, a first terminal of the diode 1642 is connected to the feed point 162, a second terminal of the diode 1642 is connected to the series inductor and capacitor, the capacitor is connected to the controller 180, and the capacitor is grounded to the common ground of the controller 180. The diode 1642 is turned on from the first end to the second end, the current at the cavity wall of the atomizing cavity 122 is rectified by the diode 1642 to become a direct current signal, the direct current signal is filtered by the inductance capacitance filter circuit 1644 and then transmitted to the controller 180, and the controller 180 processes the direct current signal to obtain a feedback voltage value.

In any of the above embodiments, the feeding point 162 includes:

the through hole is arranged on the bottom wall of the atomization cavity 122, and the filtering component 164 is connected with the wall of the through hole;

or a conductive ring disposed on the inner wall of the atomization cavity 122, the conductive ring being close to the bottom wall of the atomization cavity 122, and the filter assembly 164 being connected to the conductive ring;

or lead, having a first end connected to the bottom wall of the nebulizing chamber 122 and a second end connected to the filter assembly 164.

In this embodiment, the feed point 162 may alternatively be provided in a variety of forms including, but not limited to, vias, conductive loops, and leads.

In some embodiments, the feeding point 162 is set as a through hole, the through hole is formed at the bottom wall of the atomizing cavity 122, the sampling end of the filtering component 164 is connected with the wall of the through hole, and the feedback voltage value of the wall position of the through hole of the bottom wall of the atomizing cavity 122 is collected.

In other embodiments, the feed point 162 is provided as a conductive loop, which may be specifically selected as a copper loop. The conducting ring is arranged on the inner side wall of the atomization cavity 122 and is arranged at a position close to the bottom wall of the atomization cavity 122, the sampling end of the filtering component 164 is connected with the conducting ring, the conducting ring is arranged at the position of the cavity wall of the atomization cavity 122, and the conducting ring can guide current at the cavity wall to the filtering component 164 so as to collect a feedback voltage value at the cavity wall of the atomization cavity 122 through the conducting ring.

Embodiment two:

as shown in fig. 4, a control method of an aerosol-generating device is provided in a second embodiment of the present invention.

The aerosol generating device comprises a microwave assembly, an atomization cavity and a voltage acquisition assembly.

The control method of the aerosol generating device comprises the following steps:

step 402, controlling the microwave assembly to sweep frequency in a set frequency range;

step 404, collecting a plurality of feedback voltage values of the atomizing cavity through the voltage collecting component in a state that the microwave component is in sweep frequency operation;

step 406, determining a target frequency in a set frequency range according to the feedback voltage values;

at step 408, the microwave assembly is controlled to operate at a target frequency.

The aerosol generating device is controlled by the control method of the aerosol generating device, and comprises a shell, a microwave component, a voltage acquisition component and a controller, wherein an atomization cavity is arranged in the shell, aerosol generating matrixes can be contained in the atomization cavity, the microwave component is arranged on the shell, microwaves can be fed into the atomization cavity, and the aerosol generating matrixes contained in the atomization cavity can be heated and atomized under the action of the microwaves fed by the microwave component. Microwaves generated by the microwave assembly, due to the resonant nature of the atomizing chamber, generate an electrical current in the chamber wall structure of the atomizing chamber.

As shown in fig. 5, in any of the above embodiments, determining the target frequency in the set frequency range according to the feedback voltage value further includes:

step 502, obtaining a maximum voltage value in a plurality of feedback voltage values;

in step 504, a target frequency corresponding to the maximum voltage value in the set frequency range is determined according to the maximum voltage value.

In this embodiment, during the sweep operation of the microwave assembly, the voltage acquisition assembly continuously acquires the feedback voltage values on the cavity wall of the atomizing cavity, and the controller records the acquired feedback voltage values after the sweep operation of the microwave assembly is completed. The controller compares the magnitudes of the feedback voltage values, and takes the operating frequency corresponding to the maximum voltage value in the feedback voltage values as the target operating frequency.

As shown in fig. 6, in any of the above embodiments, controlling the microwave assembly to perform the sweep operation within the set frequency range includes:

step 602, controlling the microwave assembly to start running at a first frequency within a set frequency range;

step 604, adjusting the operation frequency of the microwave assembly according to the set adjustment value every first set duration until the operation frequency reaches a second frequency within the set frequency range.

In this embodiment, the microwave assembly is controlled to sweep over a set frequency range. Specifically, the microwave assembly is controlled to start to operate at a lower first frequency in the set frequency range, and the microwave assembly is controlled to adjust the operating frequency to a set adjustment value to operate until the operating frequency is adjusted to a second frequency in the set frequency range after a first set period of time passes.

In any of the above embodiments, collecting, by the voltage collecting assembly, a plurality of feedback voltage values of the atomizing chamber in a state where the microwave assembly is in sweep operation, includes: and collecting feedback voltage values of the atomizing cavity every a first set time length when the microwave assembly is in an operating state.

In this embodiment, during the sweep frequency operation, feedback voltage values of the atomizing cavity are collected once every a first set period, and by corresponding the time of collecting the feedback voltage values to the time of adjusting the operating frequency during the sweep frequency operation of the microwave component, the collected feedback voltage values can be made to correspond to the operating frequencies in the set frequency range one by one, so that accurate target frequencies can be found conveniently according to the maximum voltage value in the feedback voltage values.

In any of the above embodiments, after controlling the microwave assembly to operate at the target frequency, further comprising: and returning to execute the step of controlling the sweep frequency operation of the microwave assembly within the set frequency range until an operation stopping instruction is received under the condition that the microwave assembly operates according to the target frequency for a second set time.

In this embodiment, after the target frequency is determined, the microwave assembly is controlled to operate for a second set period of time according to the target frequency, and then the step of controlling the microwave assembly to sweep to operate and search the target frequency is performed again. The aerosol generating substrate in the aerosol generating device is atomized along with the operation of the microwave component by heating, so that the aerosol generating substrate in the atomizing cavity is changed, and the resonant frequency of the atomizing cavity is changed, so that the method and the device realize continuous updating of the target frequency of the operation of the microwave component by controlling the microwave component to operate for a second set time according to the target frequency and then returning to execute the mode of searching the target frequency again, ensure that the microwave component in the aerosol generating device can work at an optimal frequency point for a long time, and improve the atomizing effect of the aerosol generating device on the aerosol generating substrate.

As shown in fig. 7, the operation of the microwave assembly is controlled by closed loop control of the feedback voltage value during the control of the microwave assembly.

The controller collects feedback voltage values of the cavity, determines target frequency according to the feedback voltage values, controls the microwave assembly to operate according to the target frequency, and microwaves are fed into the atomization cavity after passing through the microwave amplifier and the coupler.

Embodiment III:

as shown in fig. 8, a third embodiment of the present invention provides a control device 800 for an aerosol generating device, wherein the aerosol generating device comprises a microwave assembly, an atomizing chamber, and a voltage acquisition assembly.

The control device of the aerosol generating device comprises:

the control module 802 is used for controlling the microwave assembly to sweep frequency in a set frequency range;

the acquisition module 804 is configured to acquire, by using the voltage acquisition assembly, a plurality of feedback voltage values of the atomizing cavity in a state that the microwave assembly is in a sweep frequency operation;

a determining module 806, configured to determine a target frequency in a set frequency range according to the plurality of feedback voltage values;

a control module 802 for controlling the microwave assembly to operate at a target frequency.

The aerosol generating device is controlled by the control device of the aerosol generating device, and comprises a shell, a microwave component, a voltage acquisition component and a controller, wherein an atomization cavity is formed in the shell, aerosol generating matrixes can be contained in the atomization cavity, the microwave component is arranged on the shell, microwaves can be fed into the atomization cavity, and the aerosol generating matrixes contained in the atomization cavity can be heated and atomized under the action of the microwaves fed into the microwave component. Microwaves generated by the microwave assembly, due to the resonant nature of the atomizing chamber, generate an electrical current in the chamber wall structure of the atomizing chamber.

In any of the above embodiments, the control device of the aerosol-generating device further comprises:

the acquisition module is used for acquiring the maximum voltage value in the feedback voltage values;

the determining module 806 is further configured to determine a target frequency corresponding to the maximum voltage value in the set frequency range according to the maximum voltage value.

In any of the above embodiments, the control module 802 is further configured to control the microwave assembly to start operating at a first frequency within a set frequency range;

the control module 802 is further configured to adjust the operating frequency of the microwave assembly according to the set adjustment value every first set period of time until the operating frequency reaches a second frequency within the set frequency range.

In any of the foregoing embodiments, the collecting module 804 is further configured to collect, when the microwave assembly is in an operating state, a feedback voltage value of the atomizing cavity every a first set period of time.

In any of the foregoing embodiments, the control module 802 is further configured to, when the microwave assembly is operated according to the target frequency for a second set period of time, return to executing the step of controlling the sweep operation of the microwave assembly within the set frequency range until receiving the operation stopping instruction.

Embodiment four:

as shown in fig. 9, a fourth embodiment of the present invention provides a control device 900 of an aerosol-generating device, comprising: a memory 902, the memory 902 storing a program or instructions; processor 904, processor 904 executes programs or instructions stored in memory 902 to implement the steps of the method of controlling an aerosol-generating device as in any of the embodiments described above. Therefore, the control method of the aerosol generating device according to any of the above embodiments has all the advantages and is not described in detail herein.

Fifth embodiment:

a fifth embodiment of the present invention provides a readable storage medium having a program stored thereon, which when executed by a processor, implements the method of controlling an aerosol-generating device according to any of the embodiments described above, thereby having all the advantageous technical effects of the method of controlling an aerosol-generating device according to any of the embodiments described above.

Among them, readable storage media such as Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk, and the like.

Example six:

in a sixth embodiment of the present invention, there is provided an aerosol-generating device comprising: the control device of the aerosol-generating device in the third and/or fourth embodiments described above, and/or the readable storage medium in the fifth embodiment described above. Therefore, the control device of the aerosol generating device and/or the whole beneficial technical effects of the readable storage medium are not repeated.

The aerosol generating device also comprises an atomization cavity, a microwave generating device, a controller and a voltage acquisition device. The controller collects feedback voltage values of the cavity, determines target frequency according to the feedback voltage values, controls the microwave assembly to operate according to the target frequency, and microwaves are fed into the atomization cavity after passing through the microwave amplifier and the coupler.

It is to be understood that in the claims, specification and drawings of the present invention, the term "plurality" means two or more, and unless otherwise explicitly defined, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and making the description process easier, and not for the purpose of indicating or implying that the apparatus or element in question must have the particular orientation described, be constructed and operated in the particular orientation, so that these descriptions should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly, and may be, for example, a fixed connection between a plurality of objects, a removable connection between a plurality of objects, or an integral connection; the objects may be directly connected to each other or indirectly connected to each other through an intermediate medium. The specific meaning of the terms in the present invention can be understood in detail from the above data by those of ordinary skill in the art.

In the claims, specification, and drawings of the present invention, the descriptions of terms "one embodiment," "some embodiments," "particular embodiments," etc., 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 the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 is only a preferred embodiment 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 device, comprising:

a housing including an atomization chamber;

the microwave assembly is connected with the shell and is used for feeding microwaves into the atomization cavity;

The voltage acquisition component is arranged in the atomizing cavity and is used for acquiring a feedback voltage value of the atomizing cavity;

and the controller is connected with the voltage acquisition component and used for determining the target operating frequency of the microwave component according to the feedback voltage value.

2. The aerosol-generating device of claim 1, wherein the voltage acquisition assembly comprises:

the feed point is arranged on the inner wall of the shell;

and the first end of the filtering component is connected with the feed point, and the second end of the filtering component is connected with the controller.

3. The aerosol-generating device of claim 2, wherein the filter assembly comprises:

a diode, a first end of which is connected with the feed point, and a second end of which is grounded;

the first end of the filter circuit is connected with the first end of the diode, the second end of the filter component is connected with the second end of the diode, and the filter circuit is connected with the controller;

wherein the second end to the first end of the diode is conducted.

4. The aerosol-generating device of claim 2, wherein the filter assembly comprises:

A diode, a first end of which is connected with the feed point;

the first end of the filter circuit is connected with the second end of the diode, the second end of the filter circuit is grounded, and the filter circuit is connected with the controller;

wherein the first end to the second end of the diode are conducted.

5. An aerosol-generating device according to claim 3 or 4, characterized in that,

the filter circuit comprises any one or combination of the following: a capacitance filter circuit, a resistance capacitance filter circuit and an inductance capacitance filter circuit.

6. The aerosol-generating device according to any one of claims 2 to 4, wherein the feeding point comprises:

the through hole is arranged on the bottom wall of the atomization cavity, and the filtering component is connected with the hole wall of the through hole; or (b)

The conducting ring is arranged on the inner wall of the atomizing cavity, the conducting ring is close to the bottom wall of the atomizing cavity, and the filtering component is connected with the conducting ring; or (b)

And the first end of the lead is connected with the bottom wall of the atomizing cavity, and the second end of the lead is connected with the filter assembly.

7. A method of controlling an aerosol-generating device, the aerosol-generating device comprising a microwave assembly, an atomizing chamber, and a voltage acquisition assembly, the method comprising:

Controlling the microwave component to sweep frequency in a set frequency range;

collecting a plurality of feedback voltage values of the atomizing cavity through the voltage collecting assembly in a state that the microwave assembly is in sweep frequency operation;

determining a target frequency in the set frequency range according to the feedback voltage values;

and controlling the microwave component to operate according to the target frequency.

8. The method of controlling an aerosol-generating device according to claim 7, wherein the determining a target frequency within the set frequency range from the feedback voltage value further comprises:

obtaining a maximum voltage value in the feedback voltage values;

and determining the target frequency corresponding to the maximum voltage value in the set frequency range according to the maximum voltage value.

9. The method of claim 7, wherein controlling the microwave assembly to sweep over a set frequency range comprises:

controlling the microwave assembly to start operating at a first frequency within a set frequency range;

and adjusting the operating frequency of the microwave assembly according to a set adjustment value every first set time interval until the operating frequency reaches a second frequency in the set frequency range.

10. The method of claim 9, wherein collecting, by the voltage collection assembly, a plurality of feedback voltage values of the atomizing chamber with the microwave assembly in a swept frequency operation state, comprises:

and collecting the feedback voltage value of the atomizing cavity every other the first set time length when the microwave assembly is in an operating state.

11. A method of controlling an aerosol-generating device according to any one of claims 7 to 10, wherein the controlling the microwave assembly after operating at the target frequency further comprises:

and returning to execute the step of controlling the microwave assembly to perform sweep frequency operation within a set frequency range until an operation stopping instruction is received under the condition that the microwave assembly is operated according to the target frequency for a second set time.

12. A control device for an aerosol-generating device, the aerosol-generating device comprising a microwave assembly, an atomizing chamber, and a voltage acquisition assembly, the control device comprising:

the control module is used for controlling the microwave assembly to sweep frequency in a set frequency range;

the acquisition module is used for acquiring a plurality of feedback voltage values of the atomizing cavity through the voltage acquisition assembly when the microwave assembly is in a sweep frequency running state;

The determining module is used for determining target frequencies in the set frequency range according to the feedback voltage values;

the control module is also used for controlling the microwave component to operate according to the target frequency.

13. A control device for an aerosol-generating device, comprising:

a memory in which a program or instructions are stored;

a processor executing a program or instructions stored in the memory to implement the steps of the method of controlling an aerosol-generating device according to any of claims 7 to 11.

14. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the method of controlling an aerosol-generating device according to any of the preceding claims 7 to 11.

15. An aerosol-generating device, comprising:

control means for an aerosol generating device according to claim 12 or 13; and/or

The readable storage medium of claim 14.