Aerosol generating device and method for controlling the same, control device and readable storage medium

Abstract

The present invention relates to an aerosol generating device (100), a method for controlling the same, a control device, and a readable storage medium, wherein the aerosol generating device (100) comprises: a housing (120) including an atomizing cavity (122); a microwave assembly (140) connected to the housing (120) and capable of supplying microwaves into the atomizing cavity (122); a voltage collecting assembly (160) installed in the atomizing cavity (122) and capable of collecting feedback voltage values ​​of the atomizing cavity (122); and a controller (180) connected to the voltage collecting assembly (160) and capable of determining the target operating frequency of the microwave assembly (140) according to the feedback voltage values. The present invention ensures the accuracy and detection effect of the optimal frequency of the detected microwave assembly, and at the same time, eliminates the need to separately install a bulky circulator in the atomizing cavity, which is advantageous for miniaturizing the product, and ensures the operating efficiency of the aerosol generating device by not generating a large amount of heat during the operation process.

Description

Technology Field

[0001] The present invention was filed with the Chinese Patent Office on December 9, 2021, under application number "202111498340.8". Claiming priority of the Chinese patent application with the title "Aerosol generating device and method for controlling the same, control device and readable storage medium," the full contents of which are incorporated into the present invention by reference.

[0002] The present invention relates to the field of electronic cigarette technology, and in particular to an aerosol generating device and a method for controlling the same, a control device and a readable storage medium. Background Technology

[0003] A Heat Not Burning (HNB) device is a combined system in which an aerosol-generating substrate (a product in the form of treated plant leaves) is added to a heating device. The external heating device generates aerosols by heating the aerosol-generating substrate to a high temperature, but at a temperature that is not sufficient for combustion; under the premise that combustion does not occur, the aerosol-generating substrate produces the aerosol required by the user.

[0004] Currently, commercially available non-combustion heating devices primarily adopt a resistance heating method, which means that heating is achieved by inserting a central heating sheet or heating probe into the interior of the aerosol-generating substrate. These devices suffer from long preheating waiting times before use, preventing them from being freely stopped; uneven carbonization of the aerosol-generating substrate prevents sufficient baking, resulting in low utilization rates; the heating sheet of the HNB device is prone to causing contamination on the aerosol-generating substrate extractor and the heating sheet base, making cleaning difficult; and the temperature of some parts of the aerosol-generating substrate in contact with the heating element becomes excessively high, leading to partial decomposition and the release of substances harmful to the human body. Consequently, microwave heating technology has gradually established itself as a new heating method replacing resistance heating. Microwave heating technology possesses characteristics such as high efficiency, immediacy, selectivity, and the absence of heating delays, allowing for heating effects to occur only on materials with specific dielectric properties. Adopting microwave atomization offers the following advantages: a. Microwave heating is radiative heating, meaning heat is not conducted, allowing for immediate removal and stopping; b. Since there is no heating sheet, there are no issues regarding residue or the need to clean the heating sheet; c. It is possible to obtain the advantage of a high utilization rate of the aerosol-generating substrate, excellent flavor consistency, and a taste closer to that of tobacco.

[0005] In conventional technology, an aerosol generating device determines the optimal frequency of a microwave assembly by using a circulator to detect the Voltage Standing Wave Ratio, and because the circulator is bulky, the aerosol generating device cannot be designed to be miniaturized. The problem to be solved

[0006] The present invention aims to solve one of the technical problems existing in the prior art or related technologies. means of solving the problem

[0007] To this end, the present invention presents an aerosol generating device.

[0008] In a second aspect of the present invention, a method for controlling an aerosol generating device is provided.

[0009] In a third aspect of the present invention, a control device for an aerosol generating device is provided.

[0010] In the fourth aspect of the present invention, a control device for an aerosol generating device is provided.

[0011] In the fifth aspect of the present invention, a readable storage medium is provided.

[0012] In the sixth aspect of the present invention, an aerosol generating device is provided.

[0013] Based on the above, an aerosol generating device presented according to a first embodiment of the present invention comprises: a housing including an atomizing cavity; a microwave assembly connected to the housing and capable of supplying microwaves into the atomizing cavity; a voltage collecting assembly installed in the atomizing cavity and capable of collecting a feedback voltage value of the atomizing cavity; and a controller connected to the voltage collecting assembly and capable of determining a target operating frequency of the microwave assembly according to the feedback voltage value.

[0014] The aerosol generating device provided in the present invention comprises the housing, the microwave assembly, the voltage collection assembly, and the controller. The atomizing cavity is installed inside the housing and can accommodate an aerosol generating substrate inside the atomizing cavity. The microwave assembly is mounted on the housing. The microwave assembly supplies microwaves into the atomizing cavity, and the aerosol generating substrate accommodated in the atomizing cavity is heated and atomized under the action of the microwaves supplied by the microwave assembly. The microwaves generated by the microwave assembly can generate current in the cavity wall structure of the atomizing cavity due to the resonance characteristics of the atomizing cavity. The voltage collection assembly collects a feedback voltage value of the current in the cavity wall structure of the atomizing cavity. The voltage collection assembly transmits the feedback voltage value to the controller, and the controller can determine the magnitude of energy in the cavity wall of the atomizing cavity based on the magnitude of the feedback voltage value.

[0015] Specifically, when the microwave assembly performs a sweep operation, the voltage collection assembly continuously collects the feedback voltage value on the cavity wall of the atomization cavity, and the controller records the collected multiple feedback voltage values. After the sweep operation of the microwave assembly is completed, the controller compares the magnitudes of the multiple feedback voltage values ​​and considers the operating frequency corresponding to the maximum feedback voltage value among the multiple feedback voltage values ​​as the target operating frequency. For understanding, a large feedback voltage value indicates that the energy supplied to the inside of the atomization cavity by the microwave at the current frequency is relatively large. Since the operating frequency corresponding to the maximum feedback voltage value represents the resonance frequency of the atomization cavity, the microwave assembly is controlled to operate according to the operating frequency corresponding to the maximum feedback voltage value. Consequently, the microwave assembly operates at an optimal frequency, thereby improving the heating and atomization efficiency of the aerosol generation device for the aerosol generation substrate.

[0016] For example, the microwave assembly is controlled to operate a sweep within a set frequency range, where the minimum frequency value within the set frequency range is 2.2G and the maximum frequency value is 2.57G. During the sweep operation, the microwave assembly starts operating from the minimum frequency value and is controlled to increase by 10 MHz every 2 milliseconds to reach the maximum frequency value. A feedback voltage value is recorded each time the operating frequency is switched. When the sweep is completed, the operating frequency corresponding to the maximum value in the feedback voltage value is considered as the target operating frequency, and the microwave assembly is controlled to supply microwaves into the atomization cavity according to the target operating frequency.

[0017] In the related technology, a circulator used to detect the voltage standing wave ratio is installed in the aerosol generating device, but it occupies a large amount of space in the aerosol generating device and generates heat during operation, which can reduce the efficiency of the entire system.

[0018] The present invention installs a voltage collection assembly capable of collecting feedback voltage values ​​on the cavity walls of the atomization cavity in the atomization cavity. Since the controller can determine the current energy supply status inside the atomization cavity based on the feedback voltage values, the resonance frequency of the atomization cavity—that is, the optimal frequency at which the microwave assembly operates—can be determined. As the optimal frequency controls the microwave assembly, the heating and atomization efficiency of the aerosol generating device for an aerosol generating substrate can be improved. While ensuring the accuracy and detection effect of the detected optimal frequency of the microwave assembly, there is no need to separately install a bulky circulator in the atomization cavity, which is advantageous for miniaturizing the product and lowering production costs. Furthermore, since the voltage collection assembly does not generate a large amount of heat during operation, the operating efficiency of the aerosol generating device can be guaranteed.

[0019] In addition, according to the aerosol generating device among the technical solutions described above provided in the present invention, it may further be equipped with the following technical features.

[0020] In one possible design, the voltage collection assembly comprises a feeding point installed on the inner wall of the housing; and a filter assembly having a first end connected to the feeding point and a second end connected to the controller.

[0021] In this design, the voltage collection assembly includes the power supply point and the filter assembly. The power supply point is installed on the inner wall of the housing, which means that the power supply point is installed in the inner cavity of the atomizing cavity. A voltage signal located on the inner wall of the atomizing cavity is collected through the power supply point, and when the voltage signal is filtered through the filter assembly and transmitted to the controller, the controller can collect the feedback voltage value located in the atomizing cavity through the power supply point.

[0022] In a situation where microwaves are supplied into the atomizing cavity, current can be generated in the cavity wall structure of the atomizing cavity due to the resonance characteristics of the atomizing cavity. The present invention allows for the collection of the feedback voltage value of the cavity wall in the atomizing cavity by installing the feed point inside the atomizing cavity.

[0023] In one possible design, the filter assembly comprises a diode, the first end of which is connected to the feed point and the second end of which is grounded; a filter circuit, the first end of which is connected to the first end of the diode and the second end of which is connected to the second end of the diode and is connected to the controller; wherein conduction is provided from the second end to the first end of the diode.

[0024] In the present design, the filter assembly includes the diode and the filter circuit, the diode is a rectifier diode, the current in the inner wall of the atomizing cavity is rectified into a DC signal, the DC signal is filtered by the filter circuit, the filtered DC signal is transmitted to the controller, and the filtered DC signal received by the controller can determine the feedback voltage value on the cavity wall of the atomizing cavity.

[0025] Specifically, the diode and the filter circuit are connected in parallel. The first terminal of the diode is the negative terminal of the diode, the negative terminal of the diode is connected to the feed point, the positive terminal of the diode is connected to the ground terminal, the controller and the rectifier circuit are connected to each other, and the feedback voltage value of the negative current at the cavity wall of the atomization cavity can be collected through the negative terminal of the diode.

[0026] In the present invention, the diode and the filter circuit are installed in parallel, and the negative electrode of the diode and the feed point are connected to each other, so that the filter assembly can collect the feedback voltage value of the negative current from the cavity wall of the atomizing cavity through the feed point.

[0027] In one possible design, the filter assembly comprises a diode, the first terminal of which is connected to the feed point; a filter circuit, the first terminal of which is connected to the second terminal of the diode, the second terminal of which is grounded and connected to the controller; wherein the first terminal of the diode is conductive to the second terminal.

[0028] In the present design, the filter assembly includes the diode and the filter circuit, the diode is a rectifier diode, the current in the inner wall of the atomizing cavity is rectified into a DC signal, the DC signal is filtered by the filter circuit, the filtered DC signal is transmitted to the controller, and the filtered DC signal received by the controller can determine the feedback voltage value on the cavity wall of the atomizing cavity.

[0029] Specifically, the diode and the filter circuit are connected in series. The first terminal of the diode is the positive terminal of the diode, and the positive terminal of the diode and the feed point are connected to each other, and the negative terminal of the diode is connected to the controller through the rectifier circuit, and the feedback voltage value of the positive current at the cavity wall of the atomization cavity can be collected through the positive terminal of the diode.

[0030] In the present invention, the diode and the filter circuit are installed in series connection, and the positive electrode of the diode and the feed point are connected to each other, so that the filter assembly can collect the feedback voltage value of the positive current from the cavity wall of the atomizing cavity through the feed point.

[0031] In one possible design, the filter circuit comprises any one or a combination of a capacitance filter circuit, a resistance-capacitance filter circuit, and an inductance-capacitance filter circuit.

[0032] In this design, the filter circuit is selected as a DC filter circuit, specifically selected as one or a combination of a capacitance filter circuit, a resistance-capacitance filter circuit (RC), and an inductance-capacitance filter circuit (LC).

[0033] In some embodiments, the filter circuit is selected as the inductance-capacitance filter circuit, and the diode is connected in series with the inductance-capacitance filter circuit.

[0034] In some embodiments, the first terminal of the diode and the feed point are connected to each other, the second terminal of the diode is connected to an inductance and a capacitance connected in series, the capacitance is connected to the controller, and the capacitance is grounded to the public terminal of the controller. The diode conducts from the first terminal to the second terminal, and the current in the cavity wall of the atomizing cavity is rectified through the diode and becomes a DC current signal, and the DC current signal is filtered through the inductance-capacitance filter circuit and then transmitted to the controller, and when the controller processes the DC current signal, the feedback voltage value can be obtained.

[0035] In one possible design, the feed point is installed on the bottom wall of the atomizing cavity and includes a through hole in which the hole wall is connected to the filter assembly; or a conducting ring installed on the inner wall of the atomizing cavity, adjacent to the bottom wall of the atomizing cavity, and connected to the filter assembly; or a lead wire in which a first end is connected to the bottom wall of the atomizing cavity and a second end is connected to the filter assembly.

[0036] In the present design, the power supply point may be installed in various forms, including but not limited to the through-hole, the conductive ring, and the lead wire.

[0037] In some embodiments, the feed point is set as the through hole, the through hole is installed at the bottom wall position of the atomizing cavity, and the sampling end of the filter assembly and the hole wall of the through hole are connected to each other to collect the feedback voltage value at the through hole wall position on the bottom wall of the atomizing cavity.

[0038] In some other embodiments, the power supply point is set to the conductive ring, and the conductive ring may be selected as a copper ring. When the conductive ring is installed on the inner wall of the atomizing cavity, and the conductive ring is installed at a position close to the bottom wall of the atomizing cavity, and the sampling end of the filter assembly is connected to the conductive ring, and the conductive ring is installed at the cavity wall position of the atomizing cavity, the conductive ring can guide the current from the cavity wall to the filter assembly, so that the feedback voltage value on the cavity wall of the atomizing cavity can be collected through the conductive ring.

[0039] A method for controlling an aerosol generating device provided in a second aspect of the present invention comprises, wherein the aerosol generating device includes a microwave assembly, an atomizing cavity, and a voltage collecting assembly, and the method for controlling the aerosol generating device comprises: controlling the microwave assembly to operate in a sweeping manner within a set frequency range; collecting a plurality of feedback voltage values ​​in the atomizing cavity through the voltage collecting assembly when the microwave assembly is in a sweeping operation state; determining a target frequency within the set frequency range according to the plurality of feedback voltage values; and controlling the microwave assembly to operate according to the target frequency.

[0040] The control method of the aerosol generating device provided in the present invention controls the aerosol generating device, wherein the aerosol generating device comprises a housing, a microwave assembly, a voltage collection assembly, and a controller, wherein an atomization cavity is installed inside the housing and can accommodate an aerosol generating substrate inside the atomization cavity, wherein the microwave assembly is mounted on the housing, wherein the microwave assembly supplies microwaves into the atomization cavity, and wherein the aerosol generating substrate accommodated in the atomization cavity is heated and atomized under the action of the microwaves supplied by the microwave assembly. The microwaves generated by the microwave assembly can generate current in the cavity wall structure of the atomization cavity due to the resonance characteristics of the atomization cavity.

[0041] With the aerosol generating substrate placed in the atomization cavity, the microwave assembly is controlled to start a sweep operation within a set frequency range, and when the microwave assembly is in a sweep operation state, multiple feedback voltage values ​​on the cavity wall of the atomization cavity are continuously collected through the voltage collection assembly. For understanding, the multiple feedback voltage values ​​correspond to multiple operating frequencies during the sweep operation of the microwave assembly. By analyzing and processing the multiple feedback voltage values, a target frequency within the set frequency range can be obtained. By controlling the microwave assembly to supply microwaves into the atomization cavity according to the target frequency, the aerosol generating substrate inside the atomization cavity can be heated and atomized.

[0042] To be understood, the feedback voltage value is collected during the sweep process, and the target frequency is determined according to the feedback voltage value. The target frequency is the operating frequency closest to the resonant frequency of the atomization cavity within a set frequency range, which means the optimal frequency during the operation of the microwave assembly. By controlling the aerosol generating device to supply microwaves into the atomization cavity according to the target frequency, the atomization efficiency of the aerosol generating substrate inside the atomization cavity can be improved.

[0043] In the related technology, a circulator used to detect the voltage standing wave ratio is installed in the aerosol generating device, but it occupies a large amount of space in the aerosol generating device and generates heat during operation, which can reduce the efficiency of the entire system.

[0044] The present invention installs a voltage collection assembly capable of collecting feedback voltage values ​​on the cavity walls of the atomization cavity in the atomization cavity. Since the controller can determine the current energy supply status inside the atomization cavity based on the feedback voltage values, the resonance frequency of the atomization cavity—that is, the optimal frequency at which the microwave assembly operates—can be determined. Consequently, as the optimal frequency controls the microwave assembly, the heating and atomization efficiency of the aerosol generating device for an aerosol generating substrate can be improved. While ensuring the accuracy and detection effectiveness of the detected optimal frequency of the microwave assembly, there is no need to separately install a bulky circulator in the atomization cavity, which is advantageous for miniaturizing the product and lowering production costs. Furthermore, since the voltage collection assembly does not generate a large amount of heat during operation, the operational efficiency of the aerosol generating device can be guaranteed.

[0045] In addition, according to the control method of the aerosol generating device among the technical solutions described above provided in the present invention, the following technical features may be further provided.

[0046] In one possible design, a target frequency within the set frequency range is determined according to the plurality of feedback voltage values, which further includes obtaining a maximum voltage value among the plurality of feedback voltage values; and determining the target frequency within the set frequency range and corresponding to the maximum voltage value according to the maximum voltage value.

[0047] In this design, when the microwave assembly performs a sweep operation, the voltage collection assembly continuously collects the feedback voltage value on the cavity wall of the atomization cavity, the controller records the collected multiple feedback voltage values, and after the sweep operation of the microwave assembly is completed, the controller compares the magnitudes of the multiple feedback voltage values ​​and considers the operating frequency corresponding to the maximum voltage value among the multiple feedback voltage values ​​as the target operating frequency.

[0048] To be understood, a large feedback voltage value indicates that the energy supplied to the inside of the atomization cavity by the microwave of the current frequency is relatively large, and since the operating frequency corresponding to the maximum voltage value among the plurality of feedback voltage values ​​is considered as a target frequency within a set frequency range, the microwave assembly is controlled to operate according to the operating frequency corresponding to the maximum feedback voltage value, and the microwave assembly operates at an optimal frequency, thereby improving the heating and atomization efficiency of the aerosol generation device for the aerosol generation substrate.

[0049] In one possible design, the microwave assembly is controlled to operate in a sweep within a set frequency range, and the microwave assembly is controlled to start operating at a first frequency within the set frequency range; and the operating frequency of the microwave assembly is adjusted according to a set adjustment value for each first set time length so that the operating frequency can reach a second frequency within the set frequency range.

[0050] In this design, the microwave assembly is controlled to operate in a sweep within a set frequency range. Specifically, the microwave assembly is controlled to start operating at a relatively low first frequency within the set frequency range; and at each passing first set time length, the microwave assembly is controlled to operate by adjusting the operating frequency to a set control value until it is adjusted to a second frequency within the set frequency range.

[0051] For understanding, the first frequency is greater than the second frequency, or the first frequency is smaller than the second frequency. This means that, in the sweep operation process, the microwave assembly can be operated from a low frequency to a high frequency within a set frequency range, and can also be operated from a high frequency to a low frequency within a set frequency range.

[0052] For example, the microwave assembly is controlled to operate a sweep within a set frequency range, where the minimum frequency value within the set frequency range is 2.2G and the maximum frequency value is 2.57G. During the sweep operation, the microwave assembly starts operating from the minimum frequency value and is controlled to increase by 10 MHz every 2 milliseconds to reach the maximum frequency value. A feedback voltage value is recorded each time the operating frequency is switched. When the sweep is completed, the operating frequency corresponding to the maximum value of the feedback voltage is considered as the target operating frequency, and the microwave assembly is controlled to supply microwaves into the atomization cavity according to the target operating frequency.

[0053] The present invention adjusts the microwave assembly to a set control value each time a first set time length passes through the operating frequency of the controlled microwave assembly, so that the microwave assembly can supply microwaves into the atomizing cavity for a sufficient time at each operating frequency, thereby improving the correspondence between the plurality of operating frequencies within the set frequency range and the plurality of feedback voltage values, as well as increasing the accuracy of the target frequency.

[0054] In one possible design, when the microwave assembly is in a sweep operating state, a plurality of feedback voltage values ​​in the atomizing cavity are collected through the voltage collection assembly, and when the microwave assembly is in an operating state, the feedback voltage values ​​of the atomizing cavity are collected at each of the first set time lengths.

[0055] In this design, during the sweep operation, the feedback voltage value of the atomizing cavity is collected at each first set time interval. Since the time for collecting the feedback voltage value corresponds to the time for adjusting the operating frequency during the sweep operation of the microwave assembly, the collected multiple feedback voltage values ​​correspond individually to the operating frequency within the set frequency range, making it convenient to subsequently find the accurate target frequency based on the maximum voltage value among the multiple feedback voltage values.

[0056] In some embodiments, the voltage collection assembly continuously detects the feedback voltage value of the atomizing cavity and records the current feedback voltage value at each of the first set time lengths.

[0057] In some other embodiments, the voltage collection assembly detects and records the current feedback voltage value at each of the first set time lengths.

[0058] In one possible design, after controlling the microwave assembly to operate according to the target frequency, this further comprises returning to a step in which the microwave assembly controls a sweep operation within a set frequency range until a stop operation command is received, under the condition that the microwave assembly operates according to the target frequency and reaches a second set time length.

[0059] In this design, after re-determining the target frequency, if the microwave assembly is controlled to operate for a second set time length according to the target frequency, the process returns to the step of executing a sweep operation to find the target frequency. Since the aerosol generating substrate of the aerosol generating device is heated and atomized according to the operation of the microwave assembly, a change occurs in the aerosol generating substrate of the atomization cavity, thereby changing the resonance frequency of the atomization cavity. Since the present invention controls the microwave assembly to operate for a second set time length according to the target frequency and returns to the step of executing to find the target frequency, the target frequency at which the microwave assembly operates can be continuously updated, and the microwave assembly in the aerosol generating device can be ensured to operate at the optimal frequency for a long time, thereby improving the atomization effect of the aerosol generating device on the aerosol generating substrate.

[0060] In a control device for an aerosol generating device provided in a third embodiment of the present invention, the aerosol generating device comprises a microwave assembly, an atomizing cavity, and a voltage collection assembly. The control device for the aerosol generating device comprises: a control module capable of controlling the microwave assembly to operate in a sweeping manner within a set frequency range; a collection module capable of collecting a plurality of feedback voltage values ​​in the atomizing cavity through the voltage collection assembly when the microwave assembly is in a sweeping operation state; and a determination module capable of determining a target frequency within the set frequency range according to the plurality of feedback voltage values. The control module can control the microwave assembly to operate according to the target frequency.

[0061] The control device of the aerosol generating device provided in the present invention controls the aerosol generating device, and the aerosol generating device includes a housing, a microwave assembly, a voltage collection assembly, and a controller. The atomizing cavity is installed inside the housing and can accommodate an aerosol generating substrate inside the atomizing cavity. The microwave assembly is mounted on the housing, and the microwave assembly supplies microwaves into the atomizing cavity. The aerosol generating substrate accommodated in the atomizing cavity receives heat and is atomized under the action of the microwaves supplied by the microwave assembly. The microwaves generated by the microwave assembly can generate current in the cavity wall structure of the atomizing cavity due to the resonance characteristics of the atomizing cavity.

[0062] With the aerosol generating substrate placed in the atomization cavity, the microwave assembly is controlled to start a sweep operation within a set frequency range, and when the microwave assembly is in a sweep operation state, a plurality of feedback voltage values ​​on the cavity wall of the atomization cavity are continuously collected through the voltage collection assembly. For understanding, the plurality of feedback voltage values ​​correspond to a plurality of operating frequencies during the sweep operation of the microwave assembly. By analyzing and processing the plurality of feedback voltage values, a target frequency within the set frequency range can be obtained. By controlling the microwave assembly to supply microwaves into the atomization cavity according to the target frequency, the aerosol generating substrate inside the atomization cavity can be heated and atomized.

[0063] To be understood, the feedback voltage value is collected during the sweep process, and the target frequency is determined according to the feedback voltage value. The target frequency is the operating frequency closest to the resonant frequency of the atomization cavity within a set frequency range, which means the optimal frequency during the operation of the microwave assembly. By controlling the aerosol generating device to supply microwaves into the atomization cavity according to the target frequency, the atomization efficiency of the aerosol generating substrate inside the atomization cavity can be improved.

[0064] In the related technology, a circulator used to detect the voltage standing wave ratio is installed in the aerosol generating device, but it occupies a large amount of space in the aerosol generating device and generates heat during operation, which can reduce the efficiency of the entire system.

[0065] The present invention installs a voltage collection assembly capable of collecting feedback voltage values ​​on the cavity walls of the atomization cavity in the atomization cavity. Since the controller can determine the current energy supply status inside the atomization cavity based on the feedback voltage values, the resonance frequency of the atomization cavity—that is, the optimal frequency at which the microwave assembly operates—can be determined. As the optimal frequency controls the microwave assembly, the heating and atomization efficiency of the aerosol generating device for an aerosol generating substrate can be improved. While ensuring the accuracy and detection effect of the detected optimal frequency of the microwave assembly, there is no need to separately install a bulky circulator in the atomization cavity, which is advantageous for miniaturizing the product and lowering production costs. Furthermore, since the voltage collection assembly does not generate a large amount of heat during operation, the operating efficiency of the aerosol generating device can be guaranteed.

[0066] A control device for an aerosol generating device presented in the fourth embodiment of the present invention comprises: a memory in which a program or command is stored; and a processor capable of executing the program or command stored in the memory to execute the steps of the control method for the aerosol generating device in the second embodiment described above. Accordingly, since it possesses all beneficial technical effects regarding the control method for the aerosol generating device in the second embodiment described above, they are not mentioned repeatedly herein.

[0067] In the readable storage medium provided in the fifth aspect of the present invention, the readable storage medium stores a program or command, and when the program or command is executed by a processor, the steps of the control method of any aerosol generating device described above can be realized. Thus, since any possible design described above possesses all beneficial technical effects regarding the control method of the aerosol generating device, they are not mentioned repeatedly herein.

[0068] The aerosol generating device presented in the sixth embodiment of the present invention comprises, in the control device of the aerosol generating device of the third and / or fourth embodiments described above, and / or the readable storage medium of the fifth embodiment described above. Thus, since it possesses all the beneficial technical effects of the control device of the aerosol generating device and / or the readable storage medium described above, they are not mentioned repeatedly herein.

[0069] The additions and advantages of the present invention are clearly evident from the sections described below or can be understood by implementing the present invention. Brief explanation of the drawing

[0070] The above-described contents and / or additional aspects and advantages of the present invention can be clearly and easily understood from the description of embodiments combined with the drawings below, where, FIG. 1 is a schematic diagram of the structure showing an aerosol generating device in the first embodiment of the present invention. FIG. 2 is a schematic diagram 1 showing a filter assembly in the first embodiment of the present invention. FIG. 3 is a schematic diagram 2 showing a filter assembly in the first embodiment of the present invention. FIG. 4 is a schematic diagram 1 showing the process of a control method for an aerosol generating device in the second embodiment of the present invention. FIG. 5 is a schematic diagram 2 showing the process of a control method for an aerosol generating device in the second embodiment of the present invention. FIG. 6 is a schematic diagram 3 showing the process of a control method for an aerosol generating device in the second embodiment of the present invention. FIG. 7 is a schematic diagram showing an aerosol generating device in the second embodiment of the present invention. FIG. 8 is a schematic block diagram showing a control device of an aerosol generating device in the third embodiment of the present invention. FIG. 9 is a schematic block diagram showing a control device of an aerosol generating device in the fourth embodiment of the present invention. Specific details for implementing the invention

[0071] The present invention is described in detail below by combining the drawings and specific embodiments to more clearly understand the aforementioned objectives, features, and advantages of the invention. It should be noted that the embodiments and features described below may be combined with one another, provided there are no conflicts in content.

[0072] Although various specific details have been described in the following description to fully understand the present invention, the present invention has been implemented by adopting other methods different from those described herein, so the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0073] With reference to the contents of FIGS. 1 to 9 below, an aerosol generating device, a method for controlling an aerosol generating device, a control device for an aerosol generating device, and a readable storage medium provided in some embodiments of the present invention will be described.

[0074] Example 1:

[0075] As illustrated in FIG. 1, the aerosol generating device (100) provided in the first embodiment of the present invention includes a housing (120), atomizing cavity (122), a microwave assembly (140), a voltage collecting assembly (160), and a controller (180).

[0076] An atomizing cavity (122) is installed inside the housing (120);

[0077] A microwave assembly (140) is connected to a housing (120) to supply microwaves into an atomizing cavity (122);

[0078] The voltage collection assembly (160) is installed in the atomizing cavity (122) and can collect the feedback voltage value of the atomizing cavity (122);

[0079] The controller (180) is connected to the voltage collection assembly (160) and can determine the target operating frequency of the microwave assembly (140) according to the feedback voltage value.

[0080] The aerosol generating device (100) provided in this embodiment includes a housing (120), a microwave assembly (140), a voltage collection assembly (160), and a controller (180). An atomizing cavity (122) is installed inside the housing (120) and can accommodate an aerosol generating substrate inside the atomizing cavity (122). The microwave assembly (140) is mounted on the housing (120), and the microwave assembly (140) supplies microwaves into the atomizing cavity (122). The aerosol generating substrate accommodated in the atomizing cavity (122) receives heat and is atomized under the action of the microwaves supplied by the microwave assembly (140). The microwaves generated by the microwave assembly (140) can generate current in the cavity wall structure of the atomizing cavity (122) due to the resonance characteristics of the atomizing cavity (122). A feedback voltage value of the current in the cavity wall structure of the atomizing cavity (122) is collected through a voltage collection assembly (160), and the voltage collection assembly (160) transmits the feedback voltage value to a controller (180), and the controller (180) can determine the magnitude of the energy in the cavity wall of the atomizing cavity (122) according to the magnitude of the feedback voltage value.

[0081] Specifically, when the microwave assembly (140) performs a sweep operation, the voltage collection assembly (160) continuously collects feedback voltage values ​​on the cavity wall of the atomizing cavity (122), and the controller (180) records the collected feedback voltage values. After the sweep operation of the microwave assembly (140) is completed, the controller (180) compares the magnitudes of the feedback voltage values ​​and considers the operating frequency corresponding to the maximum feedback voltage value among the feedback voltage values ​​as the target operating frequency. To be able to understand, a large feedback voltage value indicates that the energy supplied by the microwave of the current frequency to the atomization cavity (122) is relatively large, and since the operating frequency corresponding to the maximum feedback voltage value represents the resonance frequency of the atomization cavity (122), the microwave assembly (140) is controlled to operate according to the operating frequency corresponding to the maximum feedback voltage value, so that the microwave assembly (140) operates at an optimal frequency, thereby improving the heating and atomization efficiency of the aerosol generating device (100) for the aerosol generating substrate.

[0082] For example, the microwave assembly is controlled to operate a sweep within a set frequency range, with a minimum frequency value of 2.2G and a maximum frequency value of 2.57G within the set frequency range. During the sweep operation, the microwave assembly (140) starts operating from the minimum frequency value and is controlled to increase by 10 MHz so that it can reach the maximum frequency value every 2 milliseconds. A feedback voltage value is recorded each time the operating frequency is switched. When the sweep is completed, the operating frequency corresponding to the maximum value of the feedback voltage is considered as the target operating frequency, and the microwave assembly (140) is controlled to supply microwaves into the atomizing cavity (122) according to the target operating frequency.

[0083] In related technology, a circulator used to detect voltage standing wave ratios is installed in the aerosol generator, but it occupies a large amount of space in the aerosol generator and can reduce the efficiency of the overall system due to heat generated during operation.

[0084] In this embodiment, by installing a voltage collection assembly (160) capable of collecting feedback voltage values ​​on the cavity wall of the atomization cavity (122) in the atomization cavity (122), the controller (180) can determine the current energy supply status inside the atomization cavity (122) according to the feedback voltage values, thereby determining the resonance frequency of the atomization cavity (122), that is, determining the optimal frequency at which the microwave assembly (140) operates, and as the optimal frequency controls the microwave assembly, the heating and atomization efficiency of the aerosol generating device (100) for the aerosol generating substrate can be improved. At the same time, the accuracy of the optimal frequency of the detected microwave assembly (140) and the detection effect are ensured, and there is no need to separately install a bulky circulator in the atomization cavity (122), which is advantageous for miniaturizing the product and lowering production costs, and the voltage collection assembly (160) does not generate a large amount of heat during operation, thereby ensuring the operational efficiency of the aerosol generating device (100).

[0085] In addition, according to the aerosol generating device (100) among the technical solutions described above provided in this embodiment, it may further be equipped with the following technical features.

[0086] As illustrated in FIG. 1, in any of the embodiments described above, the voltage collection assembly (160) includes a feed point (162) and a filter assembly (164).

[0087] A power supply point (162) is installed on the inner wall of the housing (120);

[0088] The first stage of the filter assembly (164) is connected to the power supply point (162), and the second stage of the filter assembly (164) is connected to the controller (180).

[0089] In this embodiment, the voltage collection assembly (160) includes a power supply point (162) and a filter assembly (164). A power supply point (162) is installed on the inner wall of the housing (120), which means that a power supply point (162) is installed in the inner cavity of the atomizing cavity (122). A voltage signal on the inner wall of the atomizing cavity (122) is collected through the power supply point (162), and when the voltage signal is filtered through the filter assembly (164) and transmitted to the controller (180), the controller (180) can collect a feedback voltage value in the atomizing cavity (122) through the power supply point (162).

[0090] In a situation where microwaves are supplied into the atomizing cavity (122), current can be generated in the cavity wall structure of the atomizing cavity (122) due to the resonance characteristics of the atomizing cavity (122). In this embodiment, if a feed point (162) is installed inside the atomizing cavity (122), the feedback voltage value of the cavity wall in the atomizing cavity (122) can be collected.

[0091] As illustrated in FIG. 2, in any of the embodiments described above, the filter assembly (164) includes a diode (1642) and a filter circuit (1644).

[0092] The first terminal of the diode (1642) is connected to the power supply point (162), and the second terminal of the diode (1642) is grounded;

[0093] The first terminal of the filter circuit (1644) is connected to the first terminal of the diode (1642), the second terminal of the filter circuit (1644) is connected to the second terminal of the diode (1642), and the filter circuit (1644) is connected to the controller (180);

[0094] Here, the diode (1642) conducts from the second terminal to the first terminal.

[0095] In this embodiment, the filter assembly (164) includes a diode (1642) and a filter circuit (1644), the diode (1642) is a rectifier diode (1642), the current in the inner wall of the atomizing cavity (122) is rectified into a DC signal, the DC signal is filtered by the filter circuit (1644), the filtered DC signal is transmitted to a controller (180), and the filtered DC signal received by the controller (180) can determine the feedback voltage value in the cavity wall of the atomizing cavity (122).

[0096] Specifically, the diode (1642) and the filter circuit (1644) are connected in parallel. The first terminal of the diode (1642) is the negative terminal of the diode (1642), the negative terminal of the diode (1642) is connected to the feed point (162), the positive terminal of the diode (1642) is connected to the ground terminal, and the controller (180) is connected to the rectifier circuit so that the feedback voltage value of the negative current can be collected from the cavity wall of the atomizing cavity (122) through the negative terminal of the diode (1642).

[0097] In this embodiment, the diode (1642) and the filter circuit (1644) are installed in parallel, and the negative electrode of the diode (1642) and the feed point (162) are connected to each other, so that the filter assembly (164) can collect the feedback voltage value of the voice current from the cavity wall of the atomizing cavity (122) through the feed point (162).

[0098] As illustrated in FIG. 3, in any of the embodiments described above, the filter assembly (164) includes a diode (1642) and a filter circuit (1644).

[0099] The first terminal of the diode (1642) is connected to the feed point (162);

[0100] The first terminal of the filter circuit (1644) is connected to the second terminal of the diode (1642), the second terminal of the filter circuit (1644) is grounded, and the filter circuit (1644) is connected to the controller (180);

[0101] Here, the diode (1642) conducts from the first stage to the second stage.

[0102] In this embodiment, the filter assembly (164) includes a diode (1642) and a filter circuit (1644), the diode (1642) is a rectifier diode (1642), the current in the inner wall of the atomizing cavity (122) is rectified into a DC signal, the DC signal is filtered by the filter circuit (1644), the filtered DC signal is transmitted to a controller (180), and the filtered DC signal received by the controller (180) can determine the feedback voltage value in the cavity wall of the atomizing cavity (122).

[0103] Specifically, the diode (1642) and the filter circuit (1644) are connected in series. The first terminal of the diode (1642) is the positive terminal of the diode (1642), and the positive terminal of the diode (1642) is connected to the feed point (162). The negative terminal of the diode (1642) is connected to the controller (180) through the rectifier circuit, and the feedback voltage value of the positive current can be collected from the cavity wall of the atomizing cavity (122) through the positive terminal of the diode (1642).

[0104] In this embodiment, the diode (1642) and the filter circuit (1644) are installed in series, and the positive terminal of the diode (1642) and the feed point (162) are connected to each other, so that the filter assembly (164) can collect the feedback voltage value of the positive current from the cavity wall of the atomizing cavity (122) through the feed point (162).

[0105] In any of the embodiments described above, the filter circuit (1644) includes any one or a combination of a capacitance filter circuit (1644), a resistance-capacitance filter circuit (1644), and an inductance-capacitance filter circuit (1644).

[0106] In this embodiment, the filter circuit (1644) is selected as a DC filter circuit (1644), specifically selected as one or a combination of a capacitance filter circuit (1644), a resistance-capacitance filter circuit (RC) (1644), and an inductance-capacitance filter circuit (LC) (1644).

[0107] In some embodiments, the filter circuit (1644) is selected as an inductance-capacitance filter circuit (1644), and the diode (1642) is connected in series with the inductance-capacitance filter circuit (1644).

[0108] In some embodiments, the first terminal of the diode (1642) and the feed point (162) are connected to each other, the second terminal of the diode (1642) is connected to the inductance and capacitance connected in series, the capacitance is connected to the controller (180), and the capacitance is grounded to the public terminal of the controller (180). The diode (1642) conducts from the first terminal to the second terminal, and the current in the cavity wall of the atomizing cavity (122) is rectified through the diode (1642) and becomes a DC current signal. The DC current signal is filtered through the inductance-capacitance filter circuit (1644) and then transmitted to the controller (180), and when the controller (180) processes the DC current signal, a feedback voltage value can be obtained.

[0109] In any of the embodiments described above, the power supply point (162) is,

[0110] A through hole installed on the bottom wall of the atomizing cavity (122) and connected to the hole wall by a filter assembly (164); or,

[0111] A conducting ring installed on the inner wall of the atomizing cavity (122), close to the bottom wall of the atomizing cavity (162), and connected to the filter assembly (164); or,

[0112] It includes a lead wire in which the first stage is connected to the bottom wall of the atomizing cavity (122) and the second stage is connected to the filter assembly (164).

[0113] In this embodiment, the power supply point (162) may be installed in various forms, including but not limited to through holes, conductive rings, and lead wires.

[0114] In some embodiments, the feed point (162) is set as a through hole, the through hole is installed at the bottom wall position of the atomizing cavity (122), and the sampling end of the filter assembly (164) and the hole wall of the through hole are connected to each other to collect the feedback voltage value at the through hole hole wall position of the bottom wall of the atomizing cavity (122).

[0115] In some other embodiments, the feed point (162) is set as a conductive ring, and the conductive ring may be selected as a copper ring. When the conductive ring is installed on the inner wall of the atomizing cavity (122), and the conductive ring is installed at a position close to the bottom wall of the atomizing cavity (122), and the sampling end of the filter assembly (164) is connected to the conductive ring, and the conductive ring is installed at the cavity wall position of the atomizing cavity (122), the conductive ring can guide the current from the cavity wall to the filter assembly (164), so that the feedback voltage value in the cavity wall of the atomizing cavity (122) can be collected through the conductive ring.

[0116] Example 2:

[0117] As illustrated in FIG. 4, a second embodiment of the present invention provides a method for controlling an aerosol generating device.

[0118] Here, the aerosol generating device includes a microwave assembly, an atomization cavity, and a voltage collection assembly.

[0119] In a method for controlling an aerosol generating device,

[0120] Step 402 for controlling the microwave assembly to sweep within a set frequency range;

[0121] Step 404 of collecting multiple feedback voltage values ​​in the atomization cavity through a voltage collection assembly when the microwave assembly is in a sweep operation state;

[0122] Step 406 of determining a target frequency within a frequency range set according to multiple feedback voltage values;

[0123] It includes step 408, which controls the operation of the microwave assembly according to the target frequency.

[0124] The control method for an aerosol generating device provided in this embodiment controls the aerosol generating device, wherein the aerosol generating device comprises a housing, a microwave assembly, a voltage collection assembly, and a controller, an atomization cavity is installed inside the housing and can accommodate an aerosol generating substrate inside the atomization cavity, the microwave assembly is mounted on the housing, the microwave assembly supplies microwaves into the atomization cavity, and the aerosol generating substrate accommodated in the atomization cavity is heated and atomized under the action of the microwaves supplied by the microwave assembly. The microwaves generated by the microwave assembly can generate current in the cavity wall structure of the atomization cavity due to the resonance characteristics of the atomization cavity.

[0125] With the aerosol-generating substrate placed in the atomization cavity, the microwave assembly is controlled to initiate a sweep operation within a set frequency range. When the microwave assembly is in the sweep operation state, multiple feedback voltage values ​​located on the cavity walls of the atomization cavity are continuously collected through a voltage acquisition assembly. For reference, the multiple feedback voltage values ​​correspond to multiple operating frequencies during the sweep operation of the microwave assembly. By analyzing and processing the multiple feedback voltage values, a target frequency within the set frequency range can be obtained. By controlling the microwave assembly to supply microwaves into the atomization cavity according to the target frequency, the aerosol-generating substrate inside the atomization cavity can be heated and atomized.

[0126] To be understood, feedback voltage values ​​are collected during the sweep process, and a target frequency is determined based on these feedback voltage values. The target frequency is the operating frequency closest to the resonant frequency of the atomization cavity within a set frequency range, which signifies the optimal frequency during the operation of the microwave assembly. By controlling the aerosol generator to supply microwaves into the atomization cavity according to the target frequency, the atomization efficiency of the aerosol generation substrate inside the cavity can be improved.

[0127] In related technology, a circulator used to detect voltage standing wave ratios is installed in the aerosol generator, but it occupies a large amount of space in the aerosol generator and can reduce the efficiency of the overall system due to heat generated during operation.

[0128] The present invention installs a voltage collection assembly capable of collecting feedback voltage values ​​on the cavity walls of the atomization cavity in the atomization cavity. Since the controller can determine the current energy supply status inside the atomization cavity based on the feedback voltage values, the resonance frequency of the atomization cavity—that is, the optimal frequency at which the microwave assembly operates—can be determined. As the optimal frequency controls the microwave assembly, the heating and atomization efficiency of the aerosol generating device for an aerosol generating substrate can be improved. While ensuring the accuracy and detection effectiveness of the detected optimal frequency of the microwave assembly, there is no need to separately install a bulky circulator in the atomization cavity, which is advantageous for miniaturizing the product and lowering production costs. Furthermore, since the voltage collection assembly does not generate a large amount of heat during operation, the operational efficiency of the aerosol generating device can be guaranteed.

[0129] As illustrated in FIG. 5, in any of the above-described embodiments, a target frequency within a frequency range set according to a feedback voltage value is determined, and this,

[0130] Step 502 of obtaining the maximum voltage value among multiple feedback voltage values;

[0131] It further includes step 504 of determining a target frequency corresponding to the maximum voltage value within a frequency range set according to the maximum voltage value.

[0132] In this embodiment, when the microwave assembly performs a sweep operation, the voltage collection assembly continuously collects feedback voltage values ​​on the cavity walls of the atomization cavity, and the controller records the collected multiple feedback voltage values. After the sweep operation of the microwave assembly is completed, the controller compares the magnitudes of the multiple feedback voltage values ​​and considers the operating frequency corresponding to the maximum voltage value among the multiple feedback voltage values ​​as the target operating frequency.

[0133] For better understanding, a large feedback voltage value indicates that the microwave at the current frequency supplies a relatively large amount of energy to the atomization cavity, and the operating frequency corresponding to the maximum voltage value among multiple feedback voltage values ​​is considered as the target frequency within the set frequency range. The microwave assembly is controlled to operate according to the operating frequency corresponding to the maximum feedback voltage value, and the microwave assembly operates at the optimal frequency, thereby enabling the aerosol generating device to improve the heating and atomization efficiency of the aerosol generating substrate.

[0134] As illustrated in FIG. 6, in any of the embodiments described above, the microwave assembly controls sweep operation within a set frequency range, and this,

[0135] Step 602 of controlling the microwave assembly to start operating at a first frequency within a set frequency range;

[0136] It includes step 604 of adjusting the operating frequency of the microwave assembly according to a set adjustment value for each first set time length so that the operating frequency can reach a second frequency within the set frequency range.

[0137] In this embodiment, the microwave assembly is controlled to operate in a sweep within a set frequency range. Specifically, the microwave assembly is controlled to start operating at a relatively low first frequency within the set frequency range; and at each passing first set time length, the microwave assembly is controlled to operate by adjusting the operating frequency to a set control value until it is adjusted to a second frequency within the set frequency range.

[0138] To be understood, the first frequency is greater than the second frequency, or the first frequency is less than the second frequency. This means that, during the sweep operation, the microwave assembly can operate from a low frequency to a high frequency within a set frequency range, and can also operate from a high frequency to a low frequency within a set frequency range.

[0139] For example, the microwave assembly is controlled to perform a sweep operation within a set frequency range, where the minimum frequency value within the set frequency range is 2.2G and the maximum frequency value is 2.57G. During the sweep operation, the microwave assembly starts operating from the minimum frequency value and is controlled to increase by 10MHz every 2 milliseconds to reach the maximum frequency value. A feedback voltage value is recorded each time the operating frequency is switched. When the sweep is complete, the operating frequency corresponding to the maximum value of the feedback voltage is considered as the target operating frequency, and the microwave assembly is controlled to supply microwaves into the atomization cavity according to the target operating frequency.

[0140] The present invention adjusts the microwave assembly to a set control value each time a first set time length passes through the operating frequency of the controlled microwave assembly, so that the microwave assembly can supply microwaves into the atomization cavity for a sufficient time at each operating frequency, thereby improving the responsiveness of multiple operating frequencies within a set frequency range with multiple feedback voltage values, as well as increasing the accuracy of the target frequency.

[0141] In any of the embodiments described above, when the microwave assembly is in a sweep operation state, a plurality of feedback voltage values ​​in the atomizing cavity are collected through a voltage collection assembly, and this includes collecting the feedback voltage values ​​of the atomizing cavity at each first set time length when the microwave assembly is in an operation state.

[0142] In this embodiment, during the sweep operation process, feedback voltage values ​​of the atomizing cavity are collected at each first set time length, and since the time for collecting feedback voltage values ​​corresponds to the time for adjusting the operating frequency during the sweep operation of the microwave assembly, the collected multiple feedback voltage values ​​correspond individually to operating frequencies within the set frequency range, making it convenient to subsequently find an accurate target frequency based on the maximum voltage values ​​among the multiple feedback voltage values.

[0143] In some embodiments, the voltage collection assembly continuously detects the feedback voltage value of the atomizing cavity and records the current feedback voltage value at each first set time length.

[0144] In some other embodiments, the voltage acquisition assembly detects and records the current feedback voltage value at each first set time length.

[0145] In any of the embodiments described above, after controlling the microwave assembly to operate according to a target frequency, this further comprises returning to a step of controlling the microwave assembly to perform a sweep operation within a set frequency range until a stop operation command is received, under the condition that the microwave assembly operates according to the target frequency and reaches a second set time length.

[0146] In this embodiment, after the target frequency is reconfirmed, the microwave assembly is controlled to operate for a second set time length according to the target frequency, and then returns to the execution step in which the controlled microwave assembly performs a sweep operation to find the target frequency. Since the aerosol generating substrate of the aerosol generating device receives heat and is atomized according to the operation of the microwave assembly, a change occurs in the aerosol generating substrate of the atomization cavity, thereby changing the resonance frequency of the atomization cavity. Since the present invention controls the microwave assembly to operate for a second set time length according to the target frequency and then returns to the execution step in which the target frequency is found, the target frequency at which the microwave assembly operates can be continuously updated, and the microwave assembly in the aerosol generating device can be ensured to operate at the optimal frequency for a long time, thereby improving the atomization effect of the aerosol generating device on the aerosol generating substrate.

[0147] As shown in Fig. 7, in the process of controlling the microwave assembly, the operation of the microwave assembly is controlled through closed-loop control of the feedback voltage value.

[0148] The controller collects the feedback voltage value of the atomizing cavity, determines the target frequency based on the feedback voltage value, controls the microwave assembly to operate according to the target frequency, and supplies the microwave into the atomizing cavity after passing through the microwave amplifier and coupler.

[0149] Example 3:

[0150] As illustrated in FIG. 8, in the control device (800) of the aerosol generating device provided in the third embodiment of the present invention, the aerosol generating device comprises a microwave assembly, an atomizing cavity, and a voltage collecting assembly, and

[0151] In a control device for an aerosol generating device,

[0152] A control module (802) capable of controlling the sweep operation of the microwave assembly within a set frequency range;

[0153] A collection module (804) capable of collecting multiple feedback voltage values ​​in the atomizing cavity through a voltage collection assembly when the microwave assembly is in a sweep operation state;

[0154] It includes a determination module (806) capable of determining a target frequency within a frequency range set according to a plurality of feedback voltage values, and

[0155] The confirmation module (802) can control the microwave assembly to operate according to the target frequency.

[0156] The control device of the aerosol generating device provided in this embodiment controls the aerosol generating device, and the aerosol generating device includes a housing, a microwave assembly, a voltage collection assembly, and a controller. An atomization cavity is installed inside the housing and can accommodate an aerosol generating substrate inside the atomization cavity. The microwave assembly is mounted on the housing, and the microwave assembly supplies microwaves into the atomization cavity. The aerosol generating substrate accommodated in the atomization cavity receives heat and is atomized under the action of the microwaves supplied by the microwave assembly. The microwaves generated by the microwave assembly can generate current in the cavity wall structure of the atomization cavity due to the resonance characteristics of the atomization cavity.

[0157] With an aerosol-generating substrate placed in an atomization cavity, a microwave assembly is controlled to initiate a sweep operation within a set frequency range. When the microwave assembly is in a sweep operation state, multiple feedback voltage values ​​located on the cavity walls of the atomization cavity are continuously collected through a voltage collection assembly. For reference, the multiple feedback voltage values ​​correspond to multiple operating frequencies during the sweep operation of the microwave assembly. By analyzing and processing the multiple feedback voltage values, a target frequency within the set frequency range can be obtained. By controlling the microwave assembly to supply microwaves into the atomization cavity according to the target frequency, the aerosol-generating substrate inside the atomization cavity can be heated and atomized.

[0158] To be understood, feedback voltage values ​​are collected during the sweep process, and a target frequency is determined based on these feedback voltage values. The target frequency is the operating frequency closest to the resonant frequency of the atomization cavity within a set frequency range, which signifies the optimal frequency during the operation of the microwave assembly. By controlling the aerosol generator to supply microwaves into the atomization cavity according to the target frequency, the atomization efficiency of the aerosol generation substrate inside the cavity can be improved.

[0159] In related technology, a circulator used to detect voltage standing wave ratios is installed in the aerosol generator, but it occupies a large amount of space in the aerosol generator and can reduce the efficiency of the overall system due to heat generated during operation.

[0160] The present invention installs a voltage collection assembly capable of collecting feedback voltage values ​​on the cavity walls of the atomization cavity in the atomization cavity. Since the controller can determine the current energy supply status inside the atomization cavity based on the feedback voltage values, the resonance frequency of the atomization cavity—that is, the optimal frequency at which the microwave assembly operates—can be determined. As the optimal frequency controls the microwave assembly, the heating and atomization efficiency of the aerosol generating device for the aerosol generating substrate can be improved. While ensuring the accuracy and detection effectiveness of the detected optimal frequency of the microwave assembly, there is no need to separately install a bulky circulator in the atomization cavity, which is advantageous for miniaturizing the product and lowering production costs. Furthermore, since the voltage collection assembly does not generate a large amount of heat during operation, the operating efficiency of the aerosol generating device can be guaranteed.

[0161] In any of the embodiments described above, in the control device of the aerosol generating device,

[0162] An acquisition module used to acquire the maximum voltage value among multiple feedback voltage values;

[0163] It further includes a determination module (806) that determines a target frequency corresponding to the maximum voltage value and within a frequency range set according to the maximum voltage value.

[0164] In this embodiment, when the microwave assembly performs a sweep operation, the voltage collection assembly continuously collects feedback voltage values ​​on the cavity walls of the atomization cavity, and the controller records the collected multiple feedback voltage values. After the sweep operation of the microwave assembly is completed, the controller compares the magnitudes of the multiple feedback voltage values ​​and considers the operating frequency corresponding to the maximum voltage value among the multiple feedback voltage values ​​as the target operating frequency.

[0165] To be understood, a large feedback voltage value indicates that the energy supplied to the inside of the atomization cavity by the microwave at the current frequency is relatively large, and since the operating frequency corresponding to the maximum voltage value among multiple feedback voltage values ​​is considered as the target frequency within the set frequency range, the microwave assembly is controlled to operate according to the operating frequency corresponding to the maximum feedback voltage value, and the microwave assembly operates at the optimal frequency, so that the aerosol generating device can improve the heating and atomization efficiency for the aerosol generating substrate.

[0166] In any of the embodiments described above, the control module (802) can control the microwave assembly to start operating at a first frequency within a set frequency range;

[0167] The control module (802) can adjust the operating frequency of the microwave assembly according to the adjustment value set for each first set time length so that the operating frequency can reach a second frequency within the set frequency range.

[0168] In this embodiment, the microwave assembly is controlled to operate in a sweep within a set frequency range. Specifically, the microwave assembly is controlled to start operating at a relatively low first frequency within the set frequency range; and at each passing first set time length, the microwave assembly is controlled to operate by adjusting the operating frequency to a set control value until it is adjusted to a second frequency within the set frequency range.

[0169] To be understood, the first frequency is greater than the second frequency, or the first frequency is less than the second frequency. This means that, during the sweep operation, the microwave assembly can operate from a low frequency to a high frequency within a set frequency range, and can also operate from a high frequency to a low frequency within a set frequency range.

[0170] For example, the microwave assembly is controlled to operate a sweep within a set frequency range, where the minimum frequency value within the set frequency range is 2.2G and the maximum frequency value is 2.57G. During the sweep operation, the microwave assembly starts operating from the minimum frequency value and is controlled to increase by 10 MHz every 2 milliseconds to reach the maximum frequency value. A feedback voltage value is recorded each time the operating frequency is switched. When the sweep is completed, the operating frequency corresponding to the maximum value of the feedback voltage is considered as the target operating frequency, and the microwave assembly is controlled to supply microwaves into the atomization cavity according to the target operating frequency.

[0171] The present invention adjusts the microwave assembly to a set control value each time a first set time length passes through the operating frequency of the controlled microwave assembly, so that the microwave assembly can supply microwaves into the atomization cavity for a sufficient time at each operating frequency, thereby improving the responsiveness of multiple operating frequencies within a set frequency range with multiple feedback voltage values, as well as increasing the accuracy of the target frequency.

[0172] In any of the embodiments described above, the collection module (804) can collect the feedback voltage value of the atomizing cavity at each first set time length when the microwave assembly is in an operating state.

[0173] In this embodiment, during the sweep operation process, feedback voltage values ​​of the atomizing cavity are collected at each first set time length, and since the time for collecting feedback voltage values ​​corresponds to the time for adjusting the operating frequency during the sweep operation of the microwave assembly, the collected multiple feedback voltage values ​​correspond individually to operating frequencies within the set frequency range, making it convenient to subsequently find an accurate target frequency based on the maximum voltage values ​​among the multiple feedback voltage values.

[0174] In any of the embodiments described above, the control module (802) is used to return to the step of controlling the sweep operation within the set frequency range until a stop operation command is received, under the condition that the microwave assembly operates according to the target frequency and reaches a second set time length.

[0175] In this embodiment, after the target frequency is reconfirmed, when the controlled microwave assembly operates for a second set time length according to the target frequency, the process returns to the step of executing a sweep operation to find the target frequency. Since the aerosol generating substrate of the aerosol generating device receives heat and is atomized according to the operation of the microwave assembly, a change occurs in the aerosol generating substrate of the atomization cavity, thereby changing the resonance frequency of the atomization cavity. Since the present invention controls the microwave assembly to operate for a second set time length according to the target frequency and then returns to the step of executing to find the target frequency, the target frequency at which the microwave assembly operates can be continuously updated, and the microwave assembly in the aerosol generating device can be ensured to operate at the optimal frequency for a long time, thereby improving the atomization effect of the aerosol generating device on the aerosol generating substrate.

[0176] Example 4:

[0177] As illustrated in FIG. 9, the fourth embodiment of the present invention provides a control device (900) for an aerosol generating device, which includes a memory (902) in which a program or command is stored; and a processor (904) capable of executing a step of a control method for an aerosol generating device of any embodiment in the above-described embodiment by executing the program or command stored in the memory (902). Thus, since it possesses all beneficial technical effects regarding a control method for an aerosol generating device in any embodiment described above, it is not mentioned repeatedly here.

[0178] Example 5:

[0179] In the readable storage medium provided in the fifth embodiment of the present invention, the readable storage medium stores a program, and when the program is executed by a processor, the method for controlling an aerosol generating device in any of the above embodiments is realized, thus thereby possessing all beneficial technical effects regarding the method for controlling an aerosol generating device in any of the above embodiments.

[0180] Here, readable storage media include, for example, ROM (Read-Only Memory), RAM (Random Access Memory), magnetic disk, or CD-ROM.

[0181] Example 6:

[0182] The aerosol generating device provided in the sixth embodiment of the present invention comprises the control device of the aerosol generating device of the above-described embodiment 3 and / or embodiment 4 and / or the readable storage medium of the above-described embodiment 5. Thus, since it possesses all the beneficial technical effects of the control device of the above-described aerosol generating device and / or the readable storage medium, they are not mentioned repeatedly herein.

[0183] The aerosol generating device further includes an atomizing cavity, a microwave assembly, a controller, and a voltage collection assembly. The controller collects the feedback voltage value of the cavity body, determines the target frequency based on the feedback voltage value, controls the microwave assembly to operate according to the target frequency, and the microwave passes through a microwave amplifier and a coupler before being supplied into the atomizing cavity.

[0184] In the claims, specification, and drawings of the present invention, unless otherwise clearly limited, the technical term "multiple" means two or more, and the direction or positional relationship indicated by technical terms such as "up," "down," etc., is the direction or positional relationship depicted in the drawings. This is intended to simplify the description of the present invention and make the explanation process more concise, rather than indicating or implying that the device or element being referred to is structured or operated in a specific direction or a specific direction as described. Therefore, such description should not be understood as limiting the present invention; and technical terms such as "connection," "mounting," "fixing," etc., should be understood in a broad sense. For example, it must be clearly stated that "connection" may be a fixed connection, a detachable connection, or an integral connection between multiple objects; or a direct connection between multiple objects or an indirect connection through an intermediate medium. A person skilled in the art should understand the technical terms described above in their specific meanings as used in the content of the present invention, based on the specific circumstances of the description.

[0185] In the claims, specification, and drawings of the present invention, references to technical terms such as "one embodiment," "some embodiment," and "specific embodiment" indicate that specific features, structures, materials, or characteristics combining the said embodiments or exemplary descriptions are included in at least one embodiment or example of the present invention. In the claims, specification, and drawings of the present invention, schematic descriptions of the aforementioned technical terms may not refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics are combined in a suitable manner in any one or more embodiments or examples.

[0186] The foregoing describes merely preferred embodiments of the present invention and does not limit the invention. A person skilled in the art may make various modifications and variations to the present invention. Modifications, equivalent substitutions, improvements, etc., within the spirit and principles of the present invention shall be included within the scope of protection of the invention. Explanation of the symbols

[0187] Here, the correspondence between the notation and the names of the components in FIGS. 1 to 3 is as follows. 100: Aerosol generating device 120: Housing 122: Fig Cavity 140: Microwave Assembly 160: Voltage acquisition assembly 162: Feeding point 164: Filter Assembly 1642: Diode 1644: Filter circuit 180: Controller

Claims

Claim 1 An aerosol generating device comprises: a housing including an atomizing cavity; a microwave assembly connected to the housing and capable of supplying microwaves into the atomizing cavity; a voltage collecting assembly installed in the atomizing cavity and capable of collecting a feedback voltage value of the atomizing cavity; and a controller connected to the voltage collecting assembly and capable of determining a target operating frequency of the microwave assembly according to the feedback voltage value; wherein the voltage collecting assembly comprises: a feeding point installed on the inner wall of the housing; and a filter assembly having a first end connected to the feeding point and a second end connected to the controller; wherein the voltage collecting assembly can collect the feedback voltage value by collecting current from the cavity wall of the atomizing cavity through the feeding point, the feeding point and the part where the microwave assembly is connected to the housing are different from each other, and the filter assembly includes a diode used to rectify the collected current. Claim 2 delete Claim 3 In claim 1, the filter assembly comprises: a diode having a first terminal connected to the feed point and a second terminal grounded; a filter circuit having a first terminal connected to the first terminal of the diode and a second terminal connected to the second terminal of the diode and connected to the controller; and an aerosol generating device having conduction from the second terminal to the first terminal of the diode. Claim 4 In claim 1, the filter assembly comprises: a diode, the first terminal of which is connected to the feed point; a filter circuit, the first terminal of which is connected to the second terminal of the diode, the second terminal of which is grounded, and which is connected to the controller; and an aerosol generating device that conducts from the first terminal to the second terminal of the diode. Claim 5 In paragraph 3 or 4, wherein the filter circuit comprises any one or a combination of a capacitance filter circuit, a resistance-capacitance filter circuit, and an inductance-capacitance filter circuit, an aerosol generating device. Claim 6 An aerosol generating device according to claim 3 or 4, wherein, at the feed point, a through hole installed on the bottom wall of the atomizing cavity and connected to the filter assembly; or a conducting ring installed on the inner wall of the atomizing cavity, adjacent to the bottom wall of the atomizing cavity, and connected to the filter assembly; or a lead wire having a first end connected to the bottom wall of the atomizing cavity and a second end connected to the filter assembly. Claim 7 A method for controlling an aerosol generating device according to claim 1, comprising: controlling a microwave assembly to operate in a sweep operation within a set frequency range; collecting a plurality of feedback voltage values ​​in the atomization cavity through a voltage collection assembly when the microwave assembly is in a sweep operation state; determining a target frequency within the set frequency range according to the plurality of feedback voltage values; and controlling the microwave assembly to operate according to the target frequency. Claim 8 A control method for an aerosol generating device according to claim 7, wherein, wherein a target frequency within the set frequency range is determined according to the feedback voltage value, and wherein the maximum voltage value of the plurality of feedback voltage values ​​is obtained; and wherein a target frequency corresponding to the maximum voltage value within the set frequency range is determined according to the maximum voltage value. Claim 9 A method for controlling an aerosol generating device according to claim 7, wherein the microwave assembly is controlled to operate in a sweep within a set frequency range, and the microwave assembly is controlled to start operating at a first frequency within the set frequency range; and each first set time length is adjusted according to a set control value so that the operating frequency of the microwave assembly can reach a second frequency within the set frequency range. Claim 10 In claim 9, a control method for an aerosol generating device comprising, wherein, when the microwave assembly is in a sweep operating state, collecting a plurality of feedback voltage values ​​in the atomizing cavity through the voltage collection assembly, and, when the microwave assembly is in an operating state, collecting the feedback voltage values ​​of the atomizing cavity at each of the first set time lengths. Claim 11 A method for controlling an aerosol generating device according to claim 7, wherein, after controlling the microwave assembly to operate according to the target frequency, the microwave assembly returns to the step of controlling the sweep operation within the set frequency range until a stop operation command is received, under the condition that the microwave assembly operates according to the target frequency and reaches a second set time length. Claim 12 A control device for an aerosol generating device according to claim 1, comprising: a control module capable of controlling a microwave assembly to operate in a sweep operation within a set frequency range; a collection module capable of collecting a plurality of feedback voltage values ​​in the atomization cavity through a voltage collection assembly when the microwave assembly is in a sweep operation state; and a determination module capable of determining a target frequency within the set frequency range according to the plurality of feedback voltage values, wherein the control module is capable of controlling the microwave assembly to operate according to the target frequency. Claim 13 A control device for an aerosol generating device, comprising: a memory in which a program or command is stored; and a processor capable of executing a step of a control method for an aerosol generating device according to any one of claims 7 to 11 by executing a program or command in said memory. Claim 14 A readable storage medium, wherein the readable storage medium stores a program or command, and the readable storage medium is capable of realizing the steps of the method for controlling an aerosol generating device according to any one of claims 7 to 11 when the program or command is executed by a processor. Claim 15 delete

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