WO2023103654A1

WO2023103654A1 - Aerosol generation apparatus and control method and apparatus therefor, and readable storage medium

Info

Publication number: WO2023103654A1
Application number: PCT/CN2022/129155
Authority: WO
Inventors: 尹坤任; 梁峰; 杜靖
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2021-12-09
Filing date: 2022-11-02
Publication date: 2023-06-15
Also published as: KR20240113813A; EP4445768A1; CN116250653A

Abstract

An aerosol generation apparatus (100) and a control method and control apparatus therefor, and a readable storage medium. The aerosol generation apparatus (100) comprises: a housing (120), wherein the housing (120) comprises an atomization chamber (122); a microwave assembly (140), which is connected to the housing (120) and is used for feeding microwaves into the atomization chamber (122); a voltage collection assembly (160), which is provided in the atomization chamber (122) and is used for collecting a feedback voltage value of the atomization chamber (122); and a controller (180), which is connected to the voltage collection assembly (160) and is used for determining a target running frequency of the microwave assembly (140) according to the feedback voltage value. A circulator with a relatively large volume does not need to be additionally provided in the atomization chamber when ensuring the accuracy and detection efficiency of a detected optimal frequency point of the microwave assembly, such that the miniaturization of products is facilitated; and the voltage collection assembly does not generate a large amount of heat during running, such that the running efficiency of the aerosol generation apparatus is ensured.

Description

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

This application requires a Chinese patent application submitted to the State Intellectual Property Office of China on December 09, 2021, with the application number "202111498340.8", and the application name "Aerosol generating device and its control method, control device and readable storage medium" priority, the entire contents of which are incorporated in this application by reference.

technical field

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

Background technique

A heat not burn (Heat Not Burning, HNB) device is a combination of a heating device and an aerosol-generating substrate (treated plant leaf products). The external heating device heats the aerosol-generating substrate through high temperature to a temperature at which the aerosol-generating substrate can generate aerosol but is not high enough to burn, so that the aerosol-generating substrate can generate the aerosol required by the user without burning.

Heat-not-burn appliances currently on the market mainly adopt resistance heating, that is, use a central heating sheet or a heating needle to insert from the center of the aerosol-generating substrate into the interior of the aerosol-generating substrate for heating. This kind of appliance needs to be preheated for a long time before use, and it cannot be pumped and stopped freely. The carbonization of the aerosol-generating matrix is uneven, resulting in insufficient baking of the aerosol-generating matrix and low utilization rate; Dirt is generated in the matrix extractor and the base of the heating sheet, which is difficult to clean; the local aerosol in contact with the heating element will cause the temperature of the matrix to be too high, and partial cracking will occur, releasing substances harmful to the human body. Therefore, microwave heating technology has gradually replaced resistance heating as a new heating method. Microwave heating technology has the characteristics of high efficiency, timeliness, selectivity and no delay in heating. It only has a heating effect on substances with specific dielectric properties. The application advantages of using microwave heating atomization are: a. Microwave heating is radiation heating, non-thermal conduction, which can realize immediate pumping and stop; b. There is no heating sheet, so there is no problem of broken pieces and cleaning heating sheets; c. Aerosol generation The matrix utilization rate is high, the taste consistency is high, and the taste is closer to cigarettes.

In the prior art, the aerosol generating device determines the optimal frequency point of the microwave component by detecting the standing wave ratio through the circulator. Due to the large volume of the circulator, it cannot meet the miniaturization design of the aerosol generating device.

application content

This application aims to solve one of the technical problems existing in the prior art or related art.

To this end, the first aspect of the application proposes an aerosol generating device.

The second aspect of the present application proposes a method for controlling an aerosol generating device.

The third aspect of the present application proposes a control device for an aerosol generating device.

The fourth aspect of the present application proposes a control device for an aerosol generating device.

A fifth aspect of the present application provides a readable storage medium.

The sixth aspect of the present application proposes an aerosol generating device.

In view of this, according to the first aspect of the present application, an aerosol generating device is proposed, including: a housing, the housing includes an atomizing chamber; a microwave component, connected to the housing, for feeding microwaves into the atomizing chamber; The voltage acquisition component is arranged in the atomization chamber and is used to collect the feedback voltage value of the atomization chamber; the controller is connected to the voltage acquisition component and is used to determine the target operating frequency of the microwave component according to the feedback voltage value.

The aerosol generating device provided by the present application includes a housing, a microwave component, a voltage acquisition component and a controller. An atomization cavity is arranged in the housing, and the aerosol generating substrate can be accommodated in the atomization cavity. The microwave component is installed on the housing, and the microwave The component can be fed with microwaves into the atomization cavity, and the aerosol generating substrate accommodated in the atomization cavity can be heated and atomized under the action of the microwave fed by the microwave component. The microwave generated by the microwave component will generate current in the cavity wall structure of the atomization cavity due to the resonance characteristics of the atomization cavity. The voltage acquisition component can collect the feedback voltage value of the current on the wall structure of the atomization cavity, and the voltage acquisition component transmits the feedback voltage value to the controller, and the controller can judge the position of the atomization cavity wall according to the magnitude of the feedback voltage value. energy size.

Specifically, during the sweeping operation of the microwave component, the voltage acquisition component continuously collects the feedback voltage value on the wall of the atomization chamber, and the controller records the collected multiple feedback voltage values. After the frequency sweeping operation of the microwave component is completed, . The controller compares the magnitudes of the multiple feedback voltage values, and uses the operating frequency corresponding to the largest feedback voltage value among the multiple feedback voltage values as the target operating frequency. It can be understood that a large feedback voltage value means that the microwave of the current frequency feeds more energy into the atomization chamber, so the operating frequency corresponding to the maximum feedback voltage value is the resonant frequency of the atomization chamber, so the control of microwave components By operating at the operating frequency corresponding to the maximum feedback voltage value, the microwave component can be operated at the optimum frequency point, and the heating and atomization efficiency of the aerosol generating device for the aerosol generating substrate can be improved.

Exemplarily, the microwave generating component is controlled to operate in a frequency sweep within a set frequency range, the minimum frequency of the set frequency range is 2.2G, and the maximum frequency is 2.57G. During the sweeping operation, the microwave component starts to run from the minimum frequency, and controls the microwave component to increase by 10MHz every 2 milliseconds until it reaches the maximum frequency. 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 of the feedback voltage is used as the target operating frequency, and the microwave component is controlled to feed microwaves into the atomizing chamber according to the target operating frequency.

In related technologies, a circulator for detecting the standing wave ratio is installed in the aerosol generating device, which occupies a large space in the aerosol generating device, and the circulator will generate heat during operation, resulting in a decrease in the efficiency of the entire system .

In the present application, a voltage acquisition component capable of collecting the feedback voltage value at the wall of the atomization chamber is set in the atomization chamber, so that the controller can determine the current energy feeding situation in the atomization chamber according to the feedback voltage value, thereby Determining the resonant frequency of the atomization cavity, that is, the optimum frequency point for the operation of the microwave component, and controlling the atomization component according to the optimum frequency point can improve the heating and atomization efficiency of the aerosol generating device for the aerosol generating substrate. While ensuring the accuracy and detection efficiency of the optimal frequency point of the detected microwave components, there is no need to additionally install a large-volume circulator in the atomization chamber, which is conducive to the miniaturization of the product and reduces the production cost. The collection component does not generate a large amount of heat during operation, which ensures the operation efficiency of the aerosol generating device.

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

In a possible design, the voltage collection component includes: a feed point disposed on the inner wall of the casing; a filter component, a first end of the filter component is connected to the feed point, and a second end of the filter component is connected to the controller.

In this design, the voltage acquisition components include feed point and filtering components. The feed point is set on the inner wall of the shell, that is, the feed point is set in the inner cavity of the atomization chamber, and the voltage signal at the inner wall of the atomization chamber is collected through the feed point, and the voltage signal is filtered by the filter component and transmitted to the controller. , so that the controller can collect the feedback voltage value at the atomization chamber through the feed point.

When microwaves are fed into the atomizing chamber, current will be generated in the wall structure of the atomizing chamber due to the resonance characteristics of the atomizing chamber. In the present application, a feed point is set in the atomization chamber to realize the collection of the feedback voltage value at the wall of the atomization chamber.

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

In this design, the filter component includes a diode and a filter circuit, the diode is a rectifier diode, the current at the inner wall of the atomization chamber is rectified into a DC signal, and the DC signal is filtered by the filter circuit, and the filtered DC signal is sent to the control panel. In the controller, the filtered DC signal received by the controller can determine the feedback voltage value at the cavity wall of the atomization cavity.

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 to the feed point, the positive pole of the diode is connected to the ground terminal, the controller is connected to the rectifier circuit, and the negative current on the wall of the atomization chamber can be collected through the negative pole of the diode the feedback voltage value.

In the present application, the diode is arranged in parallel with the filter circuit, and the cathode of the diode is connected to the feed point, so that the filter component collects the feedback voltage value of the negative current on the wall of the atomization chamber through the feed point.

In a possible design, the filter component includes: a diode, the first end of the diode is connected to the feed point; a filter circuit, the first end of the filter circuit is connected to the second end of the diode, and the second end of the filter circuit is grounded, The filter circuit is connected with the controller; wherein, the first end of the diode is turned on to the second end.

Specifically, a diode is connected in series with the filter circuit. The first section of the diode is the anode of the diode, the anode of the diode is connected to the feed point, the cathode of the diode is connected to the controller through the rectification circuit, and the feedback voltage value of the forward current on the wall of the atomization chamber can be collected through the anode of the diode .

In the present application, the diode is arranged in series with the filter circuit, and the anode of the diode is connected to the feed point, so that the filter component collects the feedback voltage value of the forward current on the cavity wall of the atomization chamber through the feed point.

In a possible design, the filter circuit includes any one or a combination of the following: a capacitor filter circuit, a resistor-capacitor filter circuit, and an inductor-capacitor filter circuit.

In this design, the filter circuit is selected as a DC filter circuit, specifically, it can be selected as one or a combination of a capacitor filter circuit, a resistor-capacitor filter circuit (RC), and an inductor-capacitor filter circuit (LC).

In some embodiments, the filter circuit is selected as an inductor-capacitor filter circuit, and the diode is connected in series with the inductor-capacitor filter circuit.

In these embodiments, the first terminal of the diode is connected to the feed point, the second terminal of the diode is connected to the series inductor and the capacitor, the capacitor is connected to the controller, and the common terminal of the capacitor and the controller is grounded. The diode conducts from the first end to the second end. The current at the wall of the atomization chamber is rectified by the diode and becomes a DC current signal. The DC current signal is filtered by the inductance-capacitance filter circuit and then transmitted to the controller. The current signal can be processed to obtain the feedback voltage value.

In a possible design, the feed point includes: a through hole, which is arranged on the bottom wall of the atomization chamber, and the filter component is connected to the hole wall of the through hole; or a conductive ring, which is arranged on the inner wall of the atomization chamber, and the conductive ring is close to The bottom wall of the atomization chamber, the filter component is connected to the conductive ring; or the lead wire, the first end of the lead wire is connected to the bottom wall of the atomization chamber, and the second end of the lead wire is connected to the filter component.

In this design, the feed point can be provided in various forms, including but not limited to via holes, conductive rings and leads.

In some embodiments, the feed point is set as a through hole, and the through hole is opened at the bottom wall of the atomization chamber, the sampling end of the filter assembly is connected with the hole wall of the through hole, and the through hole of the bottom wall of the atomization chamber is collected. Feedback voltage value for hole wall position.

In some other embodiments, the feeding point is set as a conductive ring, and the conductive ring may specifically be a copper ring. The conductive ring is arranged on the inner wall of the atomization chamber, and the conductive ring is arranged at a position close to the bottom wall of the atomization chamber, the sampling end of the filter component is connected to the conductive ring, and the conductive ring is arranged on the wall of the atomization chamber , the conductive ring can guide the current at the cavity wall to the filter assembly, so as to collect the feedback voltage value at the cavity wall of the atomizing cavity through the conductive ring.

According to the second aspect of the present application, a control method of an aerosol generating device is proposed. The aerosol generating device includes a microwave component, an atomization chamber and a voltage collection component. The control method of the aerosol generating device includes: controlling the microwave component at a set frequency Frequency sweep operation within the range; when the microwave component is in the state of frequency sweep operation, collect multiple feedback voltage values of the atomization chamber through the voltage acquisition component; determine the target frequency within the set frequency range according to multiple feedback voltage values; control the microwave Components operate at the target frequency.

The control method of the aerosol generating device provided by the application controls the aerosol generating device. The aerosol generating device includes a housing, a microwave component, a voltage acquisition component and a controller. Accommodate the aerosol generating substrate, the microwave component is installed on the shell, the microwave component can feed microwave into the atomizing cavity, and the aerosol generating substrate contained in the atomizing cavity can be heated by the microwave fed by the microwave component. change. The microwave generated by the microwave component will generate current in the cavity wall structure of the atomization cavity due to the resonance characteristics of the atomization cavity.

When the aerosol generating substrate is located in the atomization chamber, control the microwave component to start sweeping operation within the set frequency range. Multiple feedback voltage values at the wall. It can be understood that the multiple feedback voltage values correspond to multiple operating frequencies during the sweeping operation of the microwave component. By analyzing and processing multiple feedback voltage values, the target frequency within the set frequency range can be obtained. The microwave component is controlled to feed microwaves into the atomization cavity according to the target frequency, so as to heat and atomize the aerosol generating substrate in the atomization 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, that is, the operating frequency of the microwave component during operation. the best frequency point. By controlling the aerosol generating device to feed microwaves into the atomizing chamber according to the target frequency, the atomization efficiency of the aerosol generating substrate in the atomizing chamber can be improved.

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

In a possible design, determining the target frequency within the set frequency range according to the feedback voltage value also includes: obtaining the maximum voltage value among multiple feedback voltage values; The target frequency corresponding to the voltage value.

In this design, when the microwave component is running frequency sweep, the voltage acquisition component continuously collects the feedback voltage value on the wall of the atomization chamber, and the controller records the collected feedback voltage values. back. The controller compares the magnitudes of the multiple feedback voltage values, and uses the operating frequency corresponding to the maximum voltage value among the multiple feedback voltage values as the target operating frequency.

It can be understood that a large feedback voltage value means that the microwave of the current frequency feeds more energy into the atomization chamber, so the operating frequency corresponding to the maximum voltage value among the multiple feedback voltage values is the target in the radio frequency range Therefore, controlling the operation of the microwave component at the operating frequency corresponding to the maximum feedback voltage value can make the microwave component operate at the optimal frequency point, and improve the heating and atomization efficiency of the aerosol generating device for the aerosol generating substrate.

In a possible design, controlling the microwave components to operate in a frequency sweep within the set frequency range includes: controlling the microwave components to start running at the first frequency within the set frequency range; The adjustment value adjusts the operating frequency of the microwave assembly until the operating frequency reaches a second frequency within the set frequency range.

In this design, the microwave components are controlled to operate in a frequency sweep within a set frequency range. Specifically, the microwave component is controlled to start running at the first lower frequency in the set frequency range, and every time the first set time passes, the microwave component is controlled to adjust the operating frequency to the set adjustment value until it is adjusted to the set frequency the second frequency in the range.

It can be understood that the first frequency is greater than the second frequency, or the first frequency is less than the second frequency. That is to say, during the sweeping operation of the microwave components, the frequency can be increased from low to high within the set frequency range, and can also be operated from high to low within the set frequency range.

This application adjusts the set adjustment value by controlling the operating frequency of the microwave component after the first set time length, so that the microwave component has enough time to feed microwaves into the atomization chamber at each operating frequency, and improves multiple feedback voltage values It corresponds to multiple operating frequencies within the set frequency range, thereby improving the accuracy of obtaining the target frequency.

In a possible design, when the microwave component is in the state of sweeping frequency operation, the multiple feedback voltage values of the atomization chamber are collected by the voltage acquisition component, including: when the microwave component is in the running state, every first set time , to collect the feedback voltage value of the atomization chamber.

In this design, during the sweeping operation process, the feedback voltage value of the atomization chamber is collected once every interval of the first set time length. Corresponding to the time, the multiple feedback voltage values collected can be one-to-one corresponding to the operating frequency in the set frequency range, so that the accurate target frequency can be found subsequently according to the maximum voltage value among the multiple feedback voltage values.

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

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

In a possible design, after controlling the microwave component to operate at the target frequency, it further includes: returning to control the microwave component to sweep frequency within the set frequency range when the microwave component operates at the target frequency for a second set duration Steps that run until a stop command is received.

In this design, after the target frequency is determined, the microwave component is controlled to run at the target frequency for a second set time, and then the step of controlling the microwave component to scan for the target frequency is executed again. Since the aerosol generating matrix in the aerosol generating device is heated and atomized with the operation of the microwave component, the aerosol generating matrix in the atomizing chamber changes, which changes the resonant frequency of the atomizing chamber. Therefore, the application controls the microwave After the component runs at the target frequency for the second set time, it returns to the method of searching for the target frequency again, which realizes the continuous update of the target frequency of the microwave component operation and ensures that the microwave component in the aerosol generating device can work at the optimum for a long time. The frequency point improves the atomization effect of the aerosol generating device on the aerosol generating substrate.

The third aspect of the present application proposes a control device for an aerosol generating device. The aerosol generating device includes a microwave assembly, an atomization chamber, and a voltage collection assembly. The control device for an aerosol generating device includes: a control module for controlling the microwave The component operates in a frequency sweep within the set frequency range; the acquisition module is used to collect multiple feedback voltage values of the atomization chamber through the voltage acquisition component when the microwave component is in the state of frequency sweep operation; the determination module is used to collect multiple feedback voltage values according to multiple The feedback voltage value determines the target frequency within the set frequency range; the determination module is also used to control the operation of the microwave components according to the target frequency.

The control device of the aerosol generating device provided by this application controls the aerosol generating device. The aerosol generating device includes a housing, a microwave component, a voltage acquisition component and a controller. Accommodate the aerosol generating substrate, the microwave component is installed on the shell, the microwave component can feed microwave into the atomizing cavity, and the aerosol generating substrate contained in the atomizing cavity can be heated by the microwave fed by the microwave component. change. The microwave generated by the microwave component will generate current in the cavity wall structure of the atomization cavity due to the resonance characteristics of the atomization cavity.

The fourth aspect of the present application proposes a control device for an aerosol generating device, including: a memory with programs or instructions stored in the memory; a processor, the processor executes the programs or instructions stored in the memory to achieve the above second aspect The steps of the control method of the aerosol generating device. Therefore, it has all the beneficial technical effects of the method for controlling the aerosol generating device in the second aspect above, and details will not be repeated here.

The fifth aspect of the present application proposes a readable storage medium, on which programs or instructions are stored, and when the programs or instructions are executed by the processor, the control method of the aerosol generating device in any of the above possible designs is realized A step of. Therefore, it has all the beneficial technical effects of the control method of the aerosol generating device in any of the above-mentioned possible designs, which will not be repeated here.

The sixth aspect of the present application proposes an aerosol generating device, including: the control device of the aerosol generating device in the above-mentioned third aspect and/or the fourth aspect, and/or the readable storage medium in the above-mentioned fifth aspect . Therefore, it has all the beneficial technical effects of the above-mentioned control device of the aerosol generating device and/or the readable storage medium, which will not be repeated again.

Additional aspects and advantages of the application will become apparent in the description which follows, or may be learned by practice of the application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 shows the structural representation of the aerosol generating device in the first embodiment of the present application;

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

Fig. 3 shows the second schematic diagram of the filtering component in the first embodiment of the present application;

Fig. 4 shows one of the schematic flow charts of the control method of the aerosol generating device in the second embodiment of the present application;

Fig. 5 shows the second schematic flow diagram of the control method of the aerosol generating device in the second embodiment of the present application;

Fig. 6 shows the third schematic flow chart of the control method of the aerosol generating device in the second embodiment of the present application;

Fig. 7 shows the schematic diagram of the aerosol generating device in the second embodiment of the present application;

Fig. 8 shows a schematic block diagram of the control device of the aerosol generating device in the third embodiment of the present application;

Fig. 9 shows a schematic block diagram of the control device of the aerosol generating device in the fourth embodiment of the present application.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 3 is:

100 aerosol generating device, 120 shell, 122 atomization chamber, 140 microwave component, 160 voltage collection component, 162 feed point, 164 filter component, 1642 diode, 1644 filter circuit, 180 controller.

Detailed ways

In order to better understand the above-mentioned purpose, features and advantages of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the application, but the application can also be implemented in other ways different from those described here, therefore, the protection scope of the application is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

An aerosol generating device, a method for controlling the aerosol generating device, a control device for the aerosol generating device, and a readable storage medium according to some embodiments of the present application are described below with reference to FIGS. 1 to 9 .

Embodiment one:

As shown in FIG. 1 , the first embodiment of the present application provides an aerosol generating device 100 , including: a housing 120 , an atomizing chamber 122 , a microwave component 140 , a voltage collection component 160 and a controller 180 .

The housing 120 is provided with an atomizing chamber 122;

The microwave assembly 140 is connected to the housing 120, and is used to feed microwaves into the atomizing chamber 122;

The voltage collection component 160 is arranged in the atomization chamber 122, and is used to collect the feedback voltage value of the atomization chamber 122;

The controller 180 is connected with the voltage acquisition component 160 and used for determining the target operating frequency of the microwave component 140 according to 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. The housing 120 is provided with an atomizing chamber 122, which can accommodate an aerosol generating substrate. , the microwave assembly 140 is installed on the housing 120, the microwave assembly 140 can feed microwaves into the atomization cavity 122, and the aerosol generating matrix contained in the atomization cavity 122 can be heated under the action of the microwave fed by the microwave assembly 140 Atomization. The microwave generated by the microwave component 140 will generate current in the cavity wall structure of the atomization cavity 122 due to the resonance characteristic of the atomization cavity 122 . The feedback voltage value of the current on the wall structure of the atomization chamber 122 can be collected by the voltage acquisition component 160, and the voltage acquisition component 160 transmits the feedback voltage value to the controller 180, and the controller 180 can judge the mist according to the magnitude of the feedback voltage value. The magnitude of energy at the wall of the chemical chamber 122.

Specifically, when the microwave component 140 is running in frequency sweep, the voltage acquisition component 160 continuously collects the feedback voltage value on the wall of the atomization chamber 122, and the controller 180 records the collected multiple feedback voltage values. After the sweep run is complete. The controller 180 compares the magnitudes of the multiple feedback voltage values, and uses the operating frequency corresponding to the largest feedback voltage value among the multiple feedback voltage values as the target operating frequency. It can be understood that a large feedback voltage value means that the microwave of the current frequency feeds more energy into the atomization chamber 122, so the operating frequency corresponding to the maximum feedback voltage value is the resonant frequency of the atomization chamber 122, so the control The microwave component 140 operates according to the operating frequency corresponding to the maximum feedback voltage value, so that the microwave component 140 can operate at the optimum frequency point and improve the heating and atomization efficiency of the aerosol generating device 100 for the aerosol generating substrate.

Exemplarily, the microwave generating component is controlled to operate in a frequency sweep within a set frequency range, the minimum frequency of the set frequency range is 2.2G, and the maximum frequency is 2.57G. During the sweeping operation, the microwave component 140 starts to operate from the minimum frequency, and controls the microwave component 140 to increase by 10 MHz every 2 milliseconds until reaching the maximum frequency. 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 of the feedback voltage is used as the target operating frequency, and the microwave component 140 is controlled to feed microwaves into the atomizing chamber 122 according to the target operating frequency.

In this embodiment, the voltage acquisition component 160 capable of collecting the feedback voltage value at the wall of the atomization chamber 122 is set in the atomization chamber 122, so that the controller 180 can determine the current voltage in the atomization chamber 122 according to the feedback voltage value. Energy feed-in situation, so as to determine the resonant frequency of the atomization chamber 122, that is, the optimal frequency point for the operation of the microwave component 140, and control the atomization component according to the optimal frequency point, which can improve the aerosol generating device 100 to the aerosol generating substrate. heating atomization efficiency. While ensuring the accuracy and detection efficiency of the detected optimal frequency point of the microwave component 140, there is no need to additionally arrange a large-volume circulator in the atomization chamber 122, which is beneficial to the miniaturization of the product and reduces the production cost. Moreover, the voltage collecting component 160 does not generate a large amount of heat during operation, which ensures the operating efficiency of the aerosol generating device 100 .

In addition, the aerosol generating device 100 in the above technical solution provided by this embodiment may also have the following additional technical features:

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

The feed point 162 is arranged on the inner wall of the casing 120;

A first end of the filter component 164 is connected to the feed point 162 , and a second end of the filter component 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 feed point 162 is set on the inner wall of the housing 120, that is, the feed point 162 is set in the inner cavity of the atomization chamber 122, and the voltage signal at the inner wall of the atomization chamber 122 is collected through the feed point 162, and the voltage signal passes through the filter assembly 164 Filtering is carried out and transmitted to the controller 180 , so that the controller 180 can collect the feedback voltage value at the atomization chamber 122 through the feed point 162 .

When microwaves are fed into the atomizing chamber 122 , due to the resonant characteristics of the atomizing chamber 122 , a current will be generated in the cavity wall structure of the atomizing chamber 122 . In this embodiment, a feed point 162 is set in the atomization chamber 122 to realize the collection of the feedback voltage value at the wall of the atomization chamber 122 .

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

The first end of the diode 1642 is connected to the feeding point 162, and the second end of the diode 1642 is grounded;

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

Wherein, the diode 1642 conducts from the second terminal to the first terminal.

In this embodiment, the filter component 164 includes a diode 1642 and a filter circuit 1644, the diode 1642 is a rectifier diode 1642, the current at the inner wall of the atomization chamber 122 is rectified into a DC signal, and the DC signal is filtered by the filter circuit 1644, after The filtered DC signal is sent to the controller 180 , and the filtered DC signal received by the controller 180 can determine the feedback voltage value at the wall of the atomizing chamber 122 .

Specifically, diode 1642 is connected in parallel with 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 to the feeding point 162, the anode of the diode 1642 is connected to the ground terminal, the controller 180 is connected to the rectifier circuit, and the atomization chamber can be collected through the cathode of the diode 1642 The feedback voltage value of the negative current on the cavity wall of 122.

In this embodiment, the diode 1642 is arranged in parallel with the filter circuit 1644, and the cathode of the diode 1642 is connected to the feed point 162, so that the filter component 164 collects the negative current on the cavity wall of the atomization chamber 122 through the feed point 162 the feedback voltage value.

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

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

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

Wherein, the diode 1642 conducts from the first end to the second end.

In this embodiment, the filter component 164 includes a diode 1642 and a filter circuit 1644, the diode 1642 is a rectifier diode 1642, and the current at the inner wall of the atomization chamber 122 is rectified into a DC signal, and the DC signal is filtered by the filter circuit 1644, and after The filtered DC signal is sent to the controller 180 , and the filtered DC signal received by the controller 180 can determine the feedback voltage value at the wall of the atomizing chamber 122 .

Specifically, diode 1642 is connected in series with filter circuit 1644 . The first section of the diode 1642 is the anode of the diode 1642, the anode of the diode 1642 is connected to the feed point 162, the cathode of the diode 1642 is connected to the controller 180 through the rectification circuit, and the anode of the diode 1642 can collect the cavity wall of the atomization chamber 122 Feedback voltage value for forward current.

In this embodiment, the diode 1642 is arranged in series with the filter circuit 1644, and the anode of the diode 1642 is connected to the feed point 162, so that the filter component 164 collects the forward current on the cavity wall of the atomization chamber 122 through the feed point 162 the feedback voltage value.

In any of the above embodiments, the filter circuit 1644 includes any one or a combination of the following: a capacitor filter circuit 1644 , a resistor-capacitor filter circuit 1644 , and an inductor-capacitor filter circuit 1644 .

In this embodiment, the filter circuit 1644 is selected as a DC filter circuit 1644, specifically, one or a combination of a capacitor filter circuit 1644, a resistor-capacitor filter circuit 1644 (RC), and an inductor-capacitor filter circuit 1644 (LC).

In some embodiments, the filter circuit 1644 is selected as an inductor-capacitor filter circuit 1644 , and the diode 1642 is connected in series with the inductor-capacitor filter circuit 1644 .

In these embodiments, the first end of the diode 1642 is connected to the feed point 162, the second end of the diode 1642 is connected in series with an inductor and a capacitor, the capacitor is connected to the controller 180, and the capacitor is connected to the common terminal of the controller 180 grounded. The diode 1642 conducts from the first end to the second end, and the current at the wall of the atomization chamber 122 is rectified by the diode 1642 to become a DC current signal, and the DC current signal is filtered by the inductance-capacitance filter circuit 1644 and then transmitted to the controller 180 , the controller 180 processes the DC current signal to obtain a feedback voltage value.

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

A through hole is arranged on the bottom wall of the atomization chamber 122, and the filter assembly 164 is connected with the hole wall of the through hole;

Or a conductive ring, arranged on the inner wall of the atomization chamber 122, the conductive ring is close to the bottom wall of the atomization chamber 122, and the filter component 164 is connected to the conductive ring;

Or a lead wire, the first end of the lead wire is connected to the bottom wall of the atomizing chamber 122 , and the second end of the lead wire is connected to the filter assembly 164 .

In this embodiment, the feed point 162 may be provided in various forms, including but not limited to through holes, conductive rings and leads.

In some embodiments, the feeding point 162 is set as a through hole, and the through hole is opened at the bottom wall of the atomization chamber 122, and the sampling end of the filter assembly 164 is connected with the hole wall of the through hole, and the bottom wall of the atomization chamber 122 is collected. Feedback voltage value for the via wall position of the wall.

In some other embodiments, the feeding point 162 is set as a conductive ring, and the conductive ring may specifically be a copper ring. The conductive ring is arranged on the inner side wall of the atomization chamber 122, and the conductive ring is arranged at a position close to the bottom wall of the atomization chamber 122, the sampling end of the filter assembly 164 is connected with the conductive ring, and the conductive ring is arranged on the atomization chamber 122 The position of the cavity wall, the conductive ring can conduct the current at the cavity wall to the filter assembly 164, so as to collect the feedback voltage value at the cavity wall of the atomizing cavity 122 through the conductive ring.

Embodiment two:

As shown in FIG. 4 , the second embodiment of the present application provides a method for controlling an aerosol generating device.

Wherein, the aerosol generating device includes a microwave component, an atomization chamber and a voltage collection component.

Control methods for aerosol-generating devices include:

Step 402, controlling the microwave components to operate in a frequency sweep within a set frequency range;

Step 404, when the microwave component is in the state of sweeping frequency, collect a plurality of feedback voltage values of the atomization chamber through the voltage collection component;

Step 406, determining a target frequency within a set frequency range according to multiple feedback voltage values;

Step 408, controlling the microwave components to operate at the target frequency.

The control method of the aerosol generating device provided in this embodiment controls the aerosol generating device. The aerosol generating device includes a housing, a microwave component, a voltage acquisition component and a controller. It can accommodate the aerosol generating substrate, the microwave assembly is installed on the housing, the microwave assembly can feed microwave into the atomizing chamber, and the aerosol generating substrate contained in the atomizing chamber can be heated under the action of the microwave fed by the microwave assembly Atomization. The microwave generated by the microwave component will generate current in the cavity wall structure of the atomization cavity due to the resonance characteristics of the atomization cavity.

As shown in Figure 5, in any of the above embodiments, determining the target frequency within the set frequency range according to the feedback voltage value also includes:

Step 502, obtaining the maximum voltage value among multiple feedback voltage values;

Step 504, according to the maximum voltage value, determine the target frequency corresponding to the maximum voltage value within the set frequency range.

In this embodiment, when the microwave component is running in sweeping frequency, the voltage acquisition component continuously collects the feedback voltage value on the wall of the atomization chamber, and the controller records the collected feedback voltage values, and when the microwave component is running in sweeping frequency, after finishing. The controller compares the magnitudes of the multiple feedback voltage values, and uses the operating frequency corresponding to the maximum voltage value among the multiple feedback voltage values as the target operating frequency.

As shown in Figure 6, in any of the above-mentioned embodiments, controlling the microwave components to operate in a frequency sweep within a set frequency range includes:

Step 602, controlling the microwave component to start running at the first frequency within the set frequency range;

Step 604, adjusting the operating frequency of the microwave component according to the set adjustment value every first set time interval until the operating frequency reaches a second frequency within the set frequency range.

In this embodiment, the microwave component is controlled to operate in a frequency sweep within a set frequency range. Specifically, the microwave component is controlled to start running at the first lower frequency in the set frequency range, and every time the first set time passes, the microwave component is controlled to adjust the operating frequency to the set adjustment value until it is adjusted to the set frequency the second frequency in the range.

In any of the above-mentioned embodiments, when the microwave component is in the state of sweeping frequency operation, the multiple feedback voltage values of the atomization chamber are collected by the voltage collection component, including: when the microwave component is in the running state, every first set time length , to collect the feedback voltage value of the atomization chamber.

In this embodiment, during the sweeping operation process, the feedback voltage value of the atomization chamber is collected every first set time length, and the operation frequency is adjusted by combining the time of collecting the feedback voltage value with the microwave component during the sweeping operation process. Corresponding to the corresponding time, the multiple feedback voltage values collected can be one-to-one corresponding to the operating frequency in the set frequency range, and it is convenient to find the accurate target frequency according to the maximum voltage value among the multiple feedback voltage values.

In any of the above embodiments, after controlling the microwave component to operate at the target frequency, it further includes: returning to control the microwave component to sweep the frequency within the set frequency range when the microwave component operates at the target frequency for a second set duration Steps that run until a stop command is received.

In this embodiment, after the target frequency is determined, the microwave component is controlled to run according to the target frequency for a second set duration, and then the step of controlling the microwave component to scan for the target frequency is executed again. Since the aerosol generating matrix in the aerosol generating device is heated and atomized with the operation of the microwave component, the aerosol generating matrix in the atomizing chamber changes, which changes the resonant frequency of the atomizing chamber. Therefore, the application controls the microwave After the component runs at the target frequency for the second set time, it returns to the method of searching for the target frequency again, which realizes the continuous update of the target frequency of the microwave component operation and ensures that the microwave component in the aerosol generating device can work at the optimum for a long time. The frequency point improves the atomization effect of the aerosol generating device on the aerosol generating substrate.

As shown in FIG. 7 , during the control process of the microwave component, the operation of the microwave component is controlled through the closed-loop control of the feedback voltage value.

The controller collects the feedback voltage value of the chamber, determines the target frequency according to the feedback voltage value, controls the microwave components to operate at the target frequency, and feeds the microwave into the atomization chamber after passing through the microwave amplifier and the coupler.

Embodiment three:

As shown in FIG. 8 , the third embodiment of the present application provides a control device 800 for an aerosol generating device, wherein the aerosol generating device includes a microwave component, an atomization chamber and a voltage collection component.

The controls for the aerosol-generating device include:

A control module 802, configured to control the microwave components to operate in a frequency sweep within a set frequency range;

The collection module 804 is used to collect a plurality of feedback voltage values of the atomization chamber through the voltage collection component when the microwave component is in the sweeping operation state;

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

The control module 802 is configured to control the microwave components to operate at the target frequency.

The control device of the aerosol generating device provided in this embodiment controls the aerosol generating device. The aerosol generating device includes a housing, a microwave component, a voltage acquisition component and a controller. It can accommodate the aerosol generating substrate, the microwave assembly is installed on the housing, the microwave assembly can feed microwave into the atomizing chamber, and the aerosol generating substrate contained in the atomizing chamber can be heated under the action of the microwave fed by the microwave assembly Atomization. The microwave generated by the microwave component will generate current in the cavity wall structure of the atomization cavity due to the resonance characteristics of the atomization cavity.

In the related art, a circulator for detecting the standing wave ratio is installed in the aerosol generating device, which occupies a large space in the aerosol generating device, and the circulator generates heat during operation, resulting in a decrease in the efficiency of the entire system.

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

An acquisition module, configured to acquire a maximum voltage value among multiple feedback voltage values;

The determination module 806 is further configured to determine a target frequency corresponding to the maximum voltage value within the set frequency range according to the maximum voltage value.

In any of the above embodiments, the control module 802 is also used to control the microwave components to start running at the first frequency within the set frequency range;

The control module 802 is also used to adjust the operating frequency of the microwave component according to the set adjustment value every first set time interval until the operating frequency reaches the second frequency within the set frequency range.

In any of the above-mentioned embodiments, the collection module 804 is further configured to collect the feedback voltage value of the atomization chamber every first set time period when the microwave component is in the running state.

In any of the above-mentioned embodiments, the control module 802 is further configured to return to the step of controlling the microwave component to operate in a frequency sweep within the set frequency range when the microwave component operates at the target frequency for a second set duration, until A stop command has been received.

Embodiment four:

As shown in FIG. 9 , the fourth embodiment of the present application provides a control device 900 for an aerosol generating device, including: a memory 902, in which programs or instructions are stored; a processor 904, which executes The programs or instructions stored in the memory 902 are used to implement the steps of the control method of the aerosol generating device in any one of the first embodiment above. Therefore, it has all the beneficial technical effects of the control method of the aerosol generating device in any of the above-mentioned embodiments, and details will not be repeated here.

Embodiment five:

The fifth embodiment of the present application provides a readable storage medium on which a program is stored, and when the program is executed by a processor, the control method of the aerosol generating device as in any of the above-mentioned embodiments is realized, thus having the above-mentioned All the beneficial technical effects of the control method of the aerosol generating device in any embodiment.

Wherein, the readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

Embodiment six:

The sixth embodiment of the present application provides an aerosol generating device, including: the control device of the aerosol generating device in the above-mentioned embodiment three and/or embodiment four, and/or the control device of the above-mentioned embodiment five Read storage media. Therefore, it has all the beneficial technical effects of the above-mentioned control device of the aerosol generating device and/or the readable storage medium, which will not be repeated again.

The aerosol generating device also includes an atomization chamber, a microwave generating device, a controller and a voltage collecting device. The controller collects the feedback voltage value of the chamber, determines the target frequency according to the feedback voltage value, controls the microwave components to operate at the target frequency, and feeds the microwave into the atomization chamber after passing through the microwave amplifier and the coupler.

It should be clear that in the claims, description and drawings of the present application, the term "plurality" refers to two or more, unless otherwise clearly defined, the terms "upper", "lower", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of more conveniently describing the application and making the description process easier, not to indicate or imply that the referred device or element must have the described specific orientation, construction and operation in a specific orientation, so these descriptions should not be construed as limitations on the present application; the terms "connected", "mounted", "fixed", etc. A fixed connection between multiple objects can also be a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or it can be an intermediary between multiple objects indirectly connected. Those skilled in the art can understand the specific meanings of the above terms in this application according to the specific situation of the above data.

In the claims, description and drawings of the present application, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean specific features and structures described in conjunction with the embodiment or example , material or feature is included in at least one embodiment or example of the present application. In the claims, description and drawings of this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

An aerosol generating device, comprising:

a housing, the housing includes an atomization chamber;

a microwave assembly connected to the housing and used to feed microwaves into the atomization cavity;

A voltage acquisition component, arranged in the atomization chamber, for collecting the feedback voltage value of the atomization chamber;

A controller, connected to the voltage acquisition component, configured to determine the target operating frequency of the microwave component according to the feedback voltage value.
The aerosol generating device according to claim 1, wherein the voltage collection component comprises:

The feed point is arranged on the inner wall of the housing;

A filter component, the first end of the filter component is connected to the feed point, and the second end of the filter component is connected to the controller.
The aerosol generating device according to claim 2, wherein the filter assembly comprises:

a diode, the first end of the diode is connected to the feeding point, and the second end of the diode is grounded;

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

Wherein, the second end of the diode is turned on to the first end.
The aerosol generating device according to claim 2, wherein the filter assembly comprises:

a diode, the first end of which is connected to the feeding point;

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

Wherein, the first end of the diode is turned on to the second end.
The aerosol generating device according to claim 3 or 4, wherein,

The filter circuit includes any one or combination of the following: a capacitor filter circuit, a resistor-capacitor filter circuit, and an inductor-capacitor filter circuit.
An aerosol-generating device according to any one of claims 2 to 4, wherein the feed point comprises:

A through hole is arranged on the bottom wall of the atomization chamber, and the filter component is connected to the hole wall of the through hole; or

a conductive ring disposed on the inner wall of the atomization chamber, the conductive ring is close to the bottom wall of the atomization chamber, and the filter component is connected to the conductive ring; or

A lead wire, the first end of the lead wire is connected to the bottom wall of the atomization chamber, and the second end of the lead wire is connected to the filter assembly.
A control method for an aerosol generating device, wherein the aerosol generating device includes a microwave component, an atomization chamber, and a voltage collection component, and the control method for the aerosol generating device includes:

controlling the microwave component to operate in a frequency sweep within a set frequency range;

When the microwave component is in a state of sweeping operation, a plurality of feedback voltage values of the atomization chamber are collected through the voltage collection component;

determining a target frequency within the set frequency range according to the plurality of feedback voltage values;

The microwave assembly is controlled to operate at the target frequency.
The control method for an aerosol generating device according to claim 7, wherein said determining the target frequency within the set frequency range according to the feedback voltage value further comprises:

Acquiring a maximum voltage value among the plurality of feedback voltage values;

According to the maximum voltage value, the target frequency corresponding to the maximum voltage value within the set frequency range is determined.
The method for controlling an aerosol generating device according to claim 7, wherein the controlling the microwave component to operate in a frequency sweep within a set frequency range includes:

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

Adjusting the operating frequency of the microwave assembly according to the set adjustment value at intervals of a first set time until the operating frequency reaches a second frequency within the set frequency range.
The control method of the aerosol generating device according to claim 9, wherein, when the microwave component is in the sweeping operation state, the multiple feedback voltage values of the atomization chamber are collected by the voltage collection component, including :

When the microwave component is in the running state, the feedback voltage value of the atomization chamber is collected every the first set time period.
The method for controlling an aerosol generating device according to any one of claims 7 to 10, wherein, after controlling the microwave component to operate at the target frequency, further comprising:

In the case that the microwave component operates according to the target frequency for a second set duration, return to the step of controlling the microwave component to operate within the set frequency range until a stop instruction is received.
A control device for an aerosol generating device, wherein the aerosol generating device includes a microwave assembly, an atomization chamber, and a voltage collection assembly, and the control device for the aerosol generating device includes:

A control module, configured to control the microwave component to operate in a frequency sweep within a set frequency range;

A collection module, configured to collect a plurality of feedback voltage values of the atomization chamber through the voltage collection component when the microwave component is in a sweeping operation state;

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

The control module is also used to control the microwave assembly to operate at the target frequency.
A control device for an aerosol generating device, including:

a memory in which programs or instructions are stored;

A processor, the processor executes the programs or instructions stored in the memory to implement the steps of the method for controlling an aerosol generating device according to any one of claims 7 to 11.
A readable storage medium, wherein a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the aerosol generation according to any one of claims 7 to 11 is realized The steps of the control method of the device.
An aerosol generating device, comprising:

A control device for an aerosol generating device as claimed in claim 12 or 13; and/or

The readable storage medium according to claim 14.