CN114903216A - Electronic atomization device and microwave control method thereof - Google Patents

Abstract

The invention relates to an electronic atomization device and a microwave control method thereof. The electronic atomization device includes: an atomization cavity for accommodating an aerosol generating substrate; a microwave generating circuit for generating microwaves at a preset microwave frequency; a microwave transmitting antenna for transmitting microwaves; A feedback acquisition circuit for a feedback signal corresponding to a preset microwave frequency microwave; and a microwave control circuit, the microwave control circuit is respectively connected to the microwave generation circuit and the feedback acquisition circuit; the microwave control circuit is used to determine the preset microwave frequency, and controls the microwave generation circuit according to the preset The microwave frequency generates microwaves, and the microwave control circuit selects the microwave emission frequency according to the feedback signal to maintain or correct the preset microwave frequency. The invention uses microwaves to directly heat the aerosol to generate the matrix, and adjusts the microwave emission frequency by sweeping the frequency, so that the heating efficiency is high and the service life of the equipment is prolonged.

Description

Electronic atomization device and microwave control method thereof

technical field

The invention relates to the field of aerosol generating devices, and more particularly, to an electronic atomization device using microwave heating and a microwave control method thereof.

Background technique

The existing aerosol generating device uses an electric current to heat the heating sheet, and after the heating sheet is heated, the aerosol is directly heated to generate the matrix, thereby generating the aerosol. In this heating method, the heating element is in direct contact with the aerosol-generating substrate, and the aerosol will produce residues on the heating element during the high-temperature atomization process, which is not easy to clean. Long-term accumulation will affect the heating efficiency of the heating element, thereby reducing the use of the aerosol generating device. Longevity, bad user experience.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide an electronic atomization device and a microwave control method thereof in view of the above-mentioned defects of the prior art.

The technical solution adopted by the present invention to solve the technical problem is: constructing an electronic atomization device for heating the atomized aerosol to generate a matrix, including:

Atomization chamber for containing the aerosol-generating substrate;

a microwave generating circuit for generating microwaves at a preset microwave frequency;

a microwave transmitting antenna, connected to the microwave generating circuit, and transmitting microwaves in a frequency sweep within a preset microwave frequency range, so as to transmit microwaves to the atomizing cavity to heat the aerosol-generating substrate;

a feedback collection circuit, configured to collect feedback signals corresponding to the preset microwave frequency microwaves emitted by the microwave transmitting antenna; and

a microwave control circuit, which is respectively connected to the microwave generation circuit and the feedback acquisition circuit; the microwave control circuit is used to determine the preset microwave frequency, and controls the microwave generation circuit to operate according to the preset microwave frequency The frequency generates microwaves, and the microwave control circuit selects the microwave emission frequency according to the feedback signal to maintain or correct the preset microwave frequency.

Further, in the electronic atomization device of the present invention, the feedback signal is a feedback current value, and the feedback acquisition circuit is a current acquisition circuit; or

The feedback signal is a feedback voltage value, and the feedback acquisition circuit is a voltage acquisition circuit; or

The feedback signal is a feedback capacitance value, and the feedback acquisition circuit is a capacitance acquisition circuit; or

The feedback signal is a feedback temperature value, and the feedback acquisition circuit is a temperature acquisition circuit.

Further, in the electronic atomization device of the present invention, the feedback signal is reverse microwave power, and the feedback acquisition circuit is a microwave reverse power detector.

Further, in the electronic atomization device of the present invention, the microwave reverse power detector is used to detect the reverse microwave power received by the microwave transmitting antenna.

Further, the electronic atomization device of the present invention further includes a microwave forward power detector connected to the microwave control circuit, and the microwave forward power detector is used for collecting microwave transmission power.

Further, the electronic atomizing device of the present invention further comprises a power amplifier, the output end of the microwave generating circuit is connected to the first input end of the power amplifier, and the output end of the power amplifier is connected to the microwave transmitting antenna; The microwave control circuit is connected to the power amplifier, and the microwave control circuit adjusts the power amplifier according to the feedback signal.

Further, the electronic atomization device of the present invention further includes a power conditioner, the microwave control circuit is connected to the input end of the power conditioner, and the output end of the power conditioner is connected to the second input end of the power amplifier , the microwave control circuit adjusts the power regulator according to the feedback signal.

In addition, the present invention also provides a heat-not-burn electronic atomization device, comprising:

Atomization chamber for containing the aerosol-generating substrate;

a circuit board, comprising a microwave generation circuit, a feedback acquisition circuit and a microwave control circuit; the microwave control circuit is respectively connected to the microwave generation circuit and the feedback acquisition circuit; the microwave generation circuit is used for generating microwaves at a preset microwave frequency;

a microwave transmitting antenna, connected to the microwave generating circuit, and transmitting microwaves in a frequency sweep within a preset microwave frequency range, so as to transmit microwaves to the atomizing cavity to heat the aerosol-generating substrate;

The feedback collection circuit collects the feedback signal corresponding to the preset microwave frequency microwave emitted by the microwave transmitting antenna; the microwave control circuit is used to determine the preset microwave frequency, and controls the microwave generation circuit to perform the preset microwave frequency according to the preset microwave frequency. It is assumed that the microwave frequency generates microwaves, and the microwave control circuit selects the microwave emission frequency according to the feedback signal to maintain or correct the preset microwave frequency.

Further, in the heat-not-burn electronic atomization device of the present invention, the feedback signal is a feedback current value, and the feedback acquisition circuit is a current acquisition circuit; or

The feedback signal is a feedback voltage value, and the feedback acquisition circuit is a voltage acquisition circuit; or

The feedback signal is a feedback capacitance value, and the feedback acquisition circuit is a capacitance acquisition circuit; or

The feedback signal is a feedback temperature value, and the feedback acquisition circuit is a temperature acquisition circuit.

Further, in the heat-not-burn electronic atomization device of the present invention, the feedback signal is reverse microwave power, and the feedback acquisition circuit is a microwave reverse power detector.

Further, in the heat-not-burn electronic atomization device of the present invention, the microwave reverse power detector is used to detect the reverse microwave power received by the microwave transmitting antenna.

Further, the heat-not-burn electronic atomization device of the present invention further comprises a microwave forward power detector connected to the microwave control circuit, and the microwave forward power detector is used for collecting microwave emission power.

Further, the heat-not-burn electronic atomization device of the present invention further includes a power amplifier, the output end of the microwave generating circuit is connected to the first input end of the power amplifier, and the output end of the power amplifier is connected to the microwave transmitter an antenna; the microwave control circuit is connected to the power amplifier, and the microwave control circuit adjusts the power amplifier according to the feedback signal.

Further, the heat-not-burn electronic atomization device of the present invention further comprises a power conditioner, the microwave control circuit is connected to the input end of the power conditioner, and the output end of the power conditioner is connected to the first power amplifier of the power amplifier. With two input ends, the microwave control circuit adjusts the power regulator according to the feedback signal.

Further, the heat-not-burn electronic atomization device of the present invention further includes a microwave condensing device, and the microwave transmitting antenna is located in the microwave concentrating device, and the microwave condensing device is used for concentrating at least part of the microwaves emitted by the microwave transmitting antenna. to the atomizing chamber.

Further, in the heat-not-burn electronic atomization device of the present invention, the inner layer of the microwave condensing device is a microwave reflection layer.

Further, in the heat-not-burn electronic atomization device of the present invention, the outer layer of the microwave gathering device is a microwave shielding layer.

In addition, the present invention also provides a microwave control method, which is applied to the above-mentioned electronic atomization device, and the method includes:

S1, the microwave control circuit controls the microwave generation circuit to generate microwaves, so that the microwave transmitting antenna sweeps the microwaves within a preset microwave frequency range to emit microwaves, and the microwaves are used to heat the aerosol-generating matrix in the atomizing cavity;

S2. The feedback collection circuit collects the feedback signal corresponding to the microwave, and sends the feedback signal to the microwave control circuit;

S3. After the sweep frequency transmission of microwaves is completed, the microwave control circuit selects the microwave transmission frequency according to the feedback signal.

Further, in the microwave control method of the present invention, in the step S3, the microwave control circuit selecting the microwave transmission frequency according to the feedback signal includes: the microwave control circuit selects the microwave transmission frequency and the microwave transmission frequency according to the feedback signal. transmit power.

Further, in the microwave control method of the present invention, the feedback signal in the step S2 is the reverse microwave power;

In the step S3, the microwave control circuit selecting the microwave transmission frequency according to the feedback signal includes: the microwave control circuit selecting the microwave transmission frequency corresponding to the minimum value of the reverse microwave power.

Further, in the microwave control method of the present invention, before the step S1, the method further includes:

S101. The microwave control circuit receives a microwave frequency selection instruction; or

S102, the microwave control circuit receives an instruction that the aerosol generation substrate is installed; or

S103, the microwave control circuit receives a suction instruction; or

S104, the microwave control circuit presets a suction time at every interval.

Implementing an electronic atomization device and a microwave control method thereof of the present invention has the following beneficial effects: the present invention uses microwaves to directly heat the aerosol to generate a matrix, and adjusts the microwave emission frequency by sweeping the frequency, which has high heating efficiency and prolongs the service life of the equipment.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a schematic structural diagram of an electronic atomization device provided by an embodiment;

2 is a schematic structural diagram of an electronic atomization device provided by an embodiment;

3 is a schematic structural diagram of an electronic atomization device provided by an embodiment;

4 is a schematic structural diagram of an electronic atomization device provided by an embodiment;

5 is a schematic structural diagram of an electronic atomization device provided by an embodiment;

6 is a schematic structural diagram of a heat-not-burn electronic atomization device provided by another embodiment;

7 is a schematic structural diagram of a heat-not-burn electronic atomization device provided by another embodiment;

FIG. 8 is a flowchart of a microwave control method provided by another embodiment.

Detailed ways

In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

In a preferred embodiment, referring to FIG. 1 , the electronic atomizing device of this embodiment is used to heat and atomize an aerosol-generating substrate, and the aerosol-generating substrate may be solid tobacco, liquid e-liquid, or the like. The electronic atomization device comprises an atomization cavity, a microwave control circuit, a microwave generation circuit, a microwave transmitting antenna and a feedback acquisition circuit, and the atomization cavity is used to accommodate the aerosol generation matrix; the microwave control circuit is respectively connected to the microwave generation circuit and the feedback acquisition circuit, The microwave generating circuit is connected to the microwave transmitting antenna.

The working process of the electronic atomization device is as follows: the microwave control circuit determines a preset microwave frequency, and controls the microwave generating circuit to generate microwaves according to the preset microwave frequency. The microwave transmitting antenna swept frequency within a preset microwave frequency range to emit microwaves, and at least part of the microwaves are concentrated in the atomizing cavity to heat the aerosol-generating substrate. It should be noted that the microwave transmitting antenna needs to scan the microwave frequency within the preset microwave frequency range to transmit microwaves through the microwave control circuit, and the microwave control circuit scans the preset microwave frequency range to determine the preset microwave frequency, for example, from the preset microwave frequency range. The minimum frequency of the microwave frequency is gradually increased to the maximum frequency of the preset microwave frequency range, or the frequency is gradually increased from the minimum frequency of the preset microwave frequency range to the maximum frequency of the preset microwave frequency range at preset frequency intervals, or the frequency is increased from the preset minimum frequency to the maximum frequency of the preset microwave frequency range. The maximum frequency of the microwave frequency range is gradually reduced to the minimum frequency of the preset microwave frequency range, or the frequency is gradually reduced from the maximum frequency of the preset microwave frequency range to the minimum frequency of the preset microwave frequency range at preset frequency intervals. For another example, the preset microwave frequency range includes at least two preset microwave frequency points, and each preset microwave frequency point is sequentially sent to the microwave generating circuit in a preset order.

Further, the feedback acquisition circuit collects the feedback signal corresponding to the preset microwave frequency microwave emitted by the microwave transmission antenna after the microwave transmission antenna transmits the microwave, and transmits the feedback signal to the microwave control circuit, and the microwave control circuit selects the microwave transmission frequency to maintain or correct according to the feedback signal. Presetting the microwave frequency, that is, selecting a suitable microwave emission frequency so that the aerosol-generating substrate in the atomizing chamber can achieve the optimal atomization state. Alternatively, the microwave emission frequency that the aerosol generating substrate absorbs the most is selected as the optimal microwave emission frequency, and the electronic atomizer device emits microwaves at the optimal microwave emission frequency until the next microwave frequency sweep.

In this embodiment, microwaves are used to directly heat the aerosol to generate the matrix, and the microwave emission frequency is adjusted by sweeping the frequency, so that the heating efficiency is high and the service life of the equipment is prolonged.

In one embodiment of the electronic atomization device, the feedback signal is a feedback current value, the feedback acquisition circuit is a current acquisition circuit, and the current acquisition circuit uses the induced current value generated by the target object under the action of microwaves as the feedback current value.

In the electronic atomization device of one embodiment, the feedback signal is a feedback voltage value, the feedback acquisition circuit is a voltage acquisition circuit, and the voltage acquisition circuit uses the induced voltage value generated by the target object under the action of microwaves as the feedback voltage value.

In the electronic atomization device of one embodiment, the feedback signal is a feedback capacitance value, the feedback acquisition circuit is a capacitance acquisition circuit, and the capacitance acquisition circuit uses the inductive capacitance value generated by the target object under the action of microwaves as the feedback capacitance value.

In one embodiment of the electronic atomization device, the feedback signal is a feedback temperature value, the feedback acquisition circuit is a temperature acquisition circuit, and the temperature acquisition circuit collects the temperature value of the target object under the action of microwaves. Alternatively, the target object may be an aerosol-generating substrate, and the temperature acquisition circuit collects the temperature value of the aerosol-generating substrate under the action of microwaves.

In the electronic atomization device of an embodiment, referring to FIG. 2 , the feedback signal is reverse microwave power, and the feedback acquisition circuit is a microwave reverse power detector. After the microwave is emitted, not all the microwaves will be absorbed by the aerosol-generating matrix, and some of the microwaves that are not absorbed are detected by the reverse microwave power to obtain the reverse microwave power. Alternatively, the microwave transmitting antenna is used as the receiving end of the unabsorbed microwave, the microwave reverse power detector detects the reverse microwave power received by the microwave transmitting antenna, and the microwave transmitting antenna absorbs part of the microwave that is not absorbed by the aerosol generating matrix, and the microwave reverse power The detector detects the microwave power absorbed by the microwave transmitting antenna to obtain the reverse microwave power. Further, after obtaining the reverse microwave power, the microwave control circuit selects the optimal microwave emission frequency according to the reverse microwave power. For example, the microwave control circuit selects the microwave emission frequency corresponding to the minimum value of the reverse microwave power, or the microwave control circuit selects the reverse microwave. The microwave emission frequency in the range near the microwave emission frequency corresponding to the minimum power value.

In the electronic atomization device of an embodiment, referring to FIG. 3 , the electronic atomization device of this embodiment further includes a microwave forward power detector connected to the microwave control circuit, and the microwave forward power detector is used to collect microwave transmission power. The microwave control circuit can select the optimal microwave transmission frequency according to the microwave transmission power and the reverse microwave power. For example, select the optimal microwave transmission frequency according to the ratio of the reverse microwave power and the microwave transmission power, and select the ratio of the reverse microwave power and the microwave transmission power. The microwave emission frequency corresponding to the minimum time.

In the electronic atomization device of an embodiment, referring to FIG. 4 , the electronic atomization device of this embodiment further includes a power amplifier, the output end of the microwave generating circuit is connected to the first input end of the power amplifier, and the output end of the power amplifier is connected to the microwave The transmitting antenna; the microwave control circuit is connected to the power amplifier, and the microwave control circuit adjusts the power amplifier according to the feedback signal. Understandably, the microwave control circuit can control the magnification of the power amplifier.

In the electronic atomizing device of an embodiment, referring to FIG. 5 , the electronic atomizing device of this embodiment further includes a power conditioner, the microwave control circuit is connected to the input end of the power conditioner, and the output end of the power conditioner is connected to the power amplifier. At the second input end, the microwave control circuit adjusts the power regulator according to the feedback signal. It can be understood that the power amplifier and the power conditioner can be two independent electronic components, or can be an integrated electronic component, and the integrated electronic component can realize the two functions of the power amplifier and the power conditioner. Alternatively, the microwave control circuit adjusts the power amplifier and the power regulator at the same time according to the feedback signal, so as to realize a wider range of microwave transmission power adjustment.

In a preferred embodiment, the electronic atomizing device of this embodiment is a heat-not-burn electronic atomizing device. 6 and 7, in this embodiment, the heat-not-burn electronic atomization device includes an aerosol generating substrate 10, a substrate holder 20, an atomizing cavity 30, a microwave transmitting antenna 40, a circuit board 50, a power supply battery 60 and The housing 70, wherein the substrate holder 20 is used for placing and fixing the aerosol generating substrate 10, the microwave generating circuit, the feedback acquisition circuit and the microwave control circuit are integrated on the circuit board 50, and the power supply battery 60 is used for heating not burning electronic atomization The device is powered, and the circuit board 50 and power supply battery 60 are located within the housing 70 . It can be understood that the matrix holder 20 uses a material that can penetrate microwaves to avoid absorbing microwaves. The microwave transmitting antenna 40 has various installation positions, which will be described in this embodiment as an example.

In FIG. 6 , the microwave transmitting antenna 40 is located at the bottom of the atomizing cavity 30 and is installed close to the housing 70 . The fog electronic atomizing device further includes a microwave gathering device 80 , and the microwave transmitting antenna 40 is located in the microwave gathering device 80 . The microwave transmitting antenna 40 emits microwaves, and the microwave focusing device 80 gathers at least part of the microwaves emitted by the microwave transmitting antenna 40 to the position of the aerosol generating substrate 10 in the atomizing cavity 30 to heat the aerosol generating substrate 10 . Alternatively, the inner layer of the microwave concentrating device 80 is a microwave reflecting layer, and using the microwave reflecting layer can better condense the microwaves into the atomizing cavity 30, improve the utilization rate of microwaves, and improve the heating efficiency. Further, the outer layer of the microwave concentrating device 80 is a microwave shielding layer, which can absorb the unused microwaves and prevent the microwaves from scattering outside the heat-not-burn electronic atomizer device and causing microwave pollution.

In FIG. 7 , the microwave emitting antenna 40 is wound around the atomizing cavity 30 or the substrate fixing frame 20, and the microwave emitting antenna 40 emits microwaves. Most of the microwaves emitted in this way have been concentrated in the atomizing cavity 30, that is, concentrated in the aerosol-generating substrate. 10 , part of the microwaves radiated to the surroundings are reflected by the microwave concentrating device 80 and then re-condensed on the aerosol-generating substrate 10 , so as to heat the aerosol-generating substrate 10 .

In a preferred embodiment, referring to FIG. 8 , the microwave control method of this embodiment is applied to the electronic atomizing device of the above-mentioned embodiment. Specifically, the microwave control method includes the following steps:

S1. The microwave control circuit controls the microwave generating circuit to generate microwaves, so that the microwave transmitting antenna scans the frequency to transmit microwaves within a preset microwave frequency range, and the microwaves are used to heat the aerosol-generating matrix in the atomizing cavity. Specifically, the microwave control circuit determines a preset microwave frequency, and controls the microwave generation circuit to generate microwaves according to the preset microwave frequency. The microwave transmitting antenna swept frequency within a preset microwave frequency range to emit microwaves, and at least part of the microwaves are concentrated in the atomizing cavity to heat the aerosol-generating substrate. It should be noted that the microwave transmitting antenna needs to scan the microwave frequency within the preset microwave frequency range to transmit microwaves through the microwave control circuit, and the microwave control circuit scans the preset microwave frequency range to determine the preset microwave frequency, for example, from the preset microwave frequency range. The minimum frequency of the microwave frequency is gradually increased to the maximum frequency of the preset microwave frequency range, or the frequency is gradually increased from the minimum frequency of the preset microwave frequency range to the maximum frequency of the preset microwave frequency range at preset frequency intervals, or the frequency is increased from the preset minimum frequency to the maximum frequency of the preset microwave frequency range. The maximum frequency of the microwave frequency range is gradually reduced to the minimum frequency of the preset microwave frequency range, or the frequency is gradually reduced from the maximum frequency of the preset microwave frequency range to the minimum frequency of the preset microwave frequency range at preset frequency intervals. For another example, the preset microwave frequency range includes at least two preset microwave frequency points, and each preset microwave frequency point is sequentially sent to the microwave generating circuit in a preset order.

S2. The feedback acquisition circuit collects the feedback signal corresponding to the microwave, and sends the feedback signal to the microwave control circuit. Specifically, the feedback acquisition circuit collects the feedback signal corresponding to the preset microwave frequency microwave emitted by the microwave transmission antenna after the microwave transmission antenna transmits the microwave, and transmits the feedback signal to the microwave control circuit.

S3. After the sweeping frequency transmission of microwaves is completed, the microwave control circuit selects the microwave transmission frequency according to the feedback signal. Specifically, after the sweep-frequency emission of microwaves is completed, the microwave control circuit selects the microwave emission frequency to maintain or correct the preset microwave frequency according to the feedback signal, that is, to select an appropriate microwave emission frequency so that the aerosol-generating matrix in the atomization cavity can achieve the optimal mist. state. Alternatively, the microwave emission frequency that the aerosol generating substrate absorbs the most is selected as the optimal microwave emission frequency, and the electronic atomizer device emits microwaves at the optimal microwave emission frequency until the next microwave frequency sweep.

In this embodiment, microwaves are used to directly heat the aerosol to generate the matrix, and the microwave emission frequency is adjusted by sweeping the frequency, so that the heating efficiency is high and the service life of the equipment is prolonged.

In the microwave control method of an embodiment, in step S3, the microwave control circuit selecting the microwave transmission frequency according to the feedback signal includes: the microwave control circuit selects the microwave transmission frequency and the microwave transmission power according to the feedback signal, and simultaneously adjusts the microwave transmission frequency and the microwave transmission power, To achieve optimal atomization of the aerosol-generating substrate in the atomization chamber.

In the microwave control method of the embodiment of an embodiment, the feedback signal in step S2 is the reverse microwave power. After the microwave is emitted, not all the microwaves will be absorbed by the aerosol-generating matrix, and some of the microwaves that are not absorbed are detected by the reverse microwave power to obtain the reverse microwave power. Correspondingly, in step S3, the microwave control circuit selecting the microwave transmitting frequency according to the feedback signal includes: selecting the microwave transmitting frequency corresponding to the minimum value of the reverse microwave power by the microwave control circuit.

In the microwave control method of one embodiment, the microwave heating heat-not-burn electronic atomizer may cause errors in the microwave gathering device during the production process, and the error may cause the preset microwave emission frequency to be not the optimal microwave emission frequency. The preset microwave transmission frequency needs to be calibrated. Before step S1, the method further includes: S101, the microwave control circuit receives a microwave frequency selection instruction, and the microwave frequency selection instruction can be generated by a physical button or a virtual button or the like. Of course, this step can be done at the factory or when the user uses it for the first time.

In the microwave control method of an embodiment, since the microwave frequencies corresponding to each aerosol-generating substrate are different, that is, the microwave frequencies of the resonant heating of each aerosol-generating substrate are different, in order to achieve the best heating effect, before step S1, the method further includes: : S102, the microwave control circuit receives the installation completion instruction of the aerosol generation substrate, that is, after the user newly installs or replaces the aerosol generation substrate, generates the installation completion instruction of the aerosol generation substrate,

In the microwave control method of one embodiment, along with the consumption of the aerosol-generating substrate, the position where the aerosol-generating substrate needs to be heated is constantly changing. In order to enable the microwave to accurately heat the aerosol-generating substrate, before step S1, the method further includes: S103, microwave The control circuit receives the suction command, and the user generates the suction command every time the user takes a suction.

In the microwave control method of one embodiment, along with the consumption of the aerosol-generating substrate, the position where the aerosol-generating substrate needs to be heated changes continuously. In order to enable the microwave to accurately heat the aerosol-generating substrate, before step S1, the method further includes: S104, microwave The control circuit presets the suction time at every interval.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

Professionals may further realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the possibilities of hardware and software. Interchangeability, the above description has generally described the components and steps of each example in terms of functionality. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

The steps of a method or algorithm described in conjunction with the embodiments disclosed herein may be directly implemented in hardware, a software module executed by a processor, or a combination of the two. A software module can be placed in random access memory (RAM), internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other in the technical field. in any other known form of storage medium.

The above embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention. All equivalent changes and modifications made with the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims (21)

1. an electronic atomization device, for heating atomization aerosol generation matrix, is characterized in that, comprises: Atomization chamber for containing the aerosol-generating substrate; a microwave generating circuit for generating microwaves at a preset microwave frequency; a microwave transmitting antenna, connected to the microwave generating circuit, and transmitting microwaves in a frequency sweep within a preset microwave frequency range, so as to transmit microwaves to the atomizing cavity to heat the aerosol-generating substrate; a feedback collection circuit, configured to collect feedback signals corresponding to the preset microwave frequency microwaves emitted by the microwave transmitting antenna; and a microwave control circuit, which is respectively connected to the microwave generation circuit and the feedback acquisition circuit; the microwave control circuit is used to determine the preset microwave frequency, and controls the microwave generation circuit to operate according to the preset microwave frequency The frequency generates microwaves, and the microwave control circuit selects the microwave emission frequency according to the feedback signal to maintain or correct the preset microwave frequency. 2. The electronic atomization device according to claim 1, wherein the feedback signal is a feedback current value, and the feedback acquisition circuit is a current acquisition circuit; or The feedback signal is a feedback voltage value, and the feedback acquisition circuit is a voltage acquisition circuit; or The feedback signal is a feedback capacitance value, and the feedback acquisition circuit is a capacitance acquisition circuit; or The feedback signal is a feedback temperature value, and the feedback acquisition circuit is a temperature acquisition circuit. 3 . The electronic atomization device according to claim 1 , wherein the feedback signal is reverse microwave power, and the feedback acquisition circuit is a microwave reverse power detector. 4 . 4 . The electronic atomization device according to claim 3 , wherein the microwave reverse power detector is used to detect the reverse microwave power received by the microwave transmitting antenna. 5 . 5 . The electronic atomization device according to claim 1 , further comprising a microwave forward power detector connected to the microwave control circuit, and the microwave forward power detector is used to collect microwave transmission power. 6 . 6 . The electronic atomizer device according to claim 1 , further comprising a power amplifier, the output end of the microwave generating circuit is connected to the first input end of the power amplifier, and the output end of the power amplifier is connected to the first input end of the power amplifier. 7 . the microwave transmitting antenna; the microwave control circuit is connected to the power amplifier, and the microwave control circuit adjusts the power amplifier according to the feedback signal. 7 . The electronic atomizer device according to claim 1 , further comprising a power conditioner, the microwave control circuit is connected to an input end of the power conditioner, and an output end of the power conditioner is connected to the power conditioner. 8 . The second input end of the power amplifier, the microwave control circuit adjusts the power regulator according to the feedback signal. 8. A heat-not-burn electronic atomization device, characterized in that, comprising: Atomization chamber for containing the aerosol-generating substrate; a circuit board, comprising a microwave generation circuit, a feedback acquisition circuit and a microwave control circuit; the microwave control circuit is respectively connected to the microwave generation circuit and the feedback acquisition circuit; the microwave generation circuit is used for generating microwaves at a preset microwave frequency; a microwave transmitting antenna, connected to the microwave generating circuit, and transmitting microwaves in a frequency sweep within a preset microwave frequency range, so as to transmit microwaves to the atomizing cavity to heat the aerosol-generating substrate; The feedback collection circuit collects the feedback signal corresponding to the preset microwave frequency microwave emitted by the microwave transmitting antenna; the microwave control circuit is used to determine the preset microwave frequency, and controls the microwave generation circuit to perform the preset microwave frequency according to the preset microwave frequency. It is assumed that the microwave frequency generates microwaves, and the microwave control circuit selects the microwave emission frequency according to the feedback signal to maintain or correct the preset microwave frequency. 9. The heat-not-burn electronic atomization device according to claim 8, wherein the feedback signal is a feedback current value, and the feedback acquisition circuit is a current acquisition circuit; or The feedback signal is a feedback voltage value, and the feedback acquisition circuit is a voltage acquisition circuit; or The feedback signal is a feedback capacitance value, and the feedback acquisition circuit is a capacitance acquisition circuit; or The feedback signal is a feedback temperature value, and the feedback acquisition circuit is a temperature acquisition circuit. 10 . The heat-not-burn electronic atomization device according to claim 8 , wherein the feedback signal is reverse microwave power, and the feedback acquisition circuit is a microwave reverse power detector. 11 . 11 . The heat-not-burn electronic atomization device according to claim 10 , wherein the microwave reverse power detector is used to detect the reverse microwave power received by the microwave transmitting antenna. 12 . 12 . The heat-not-burn electronic atomization device according to claim 8 , further comprising a microwave forward power detector connected to the microwave control circuit, and the microwave forward power detector is used to collect microwave emissions. 13 . power. 13. The heat-not-burn electronic atomization device according to claim 8, further comprising a power amplifier, the output end of the microwave generating circuit is connected to the first input end of the power amplifier, and the output end of the power amplifier is connected to the first input end of the power amplifier. The output end is connected to the microwave transmitting antenna; the microwave control circuit is connected to the power amplifier, and the microwave control circuit adjusts the power amplifier according to the feedback signal. 14 . The heat-not-burn electronic atomization device according to claim 8 , further comprising a power regulator, the microwave control circuit is connected to an input end of the power regulator, and an output end of the power regulator is connected. 15 . The second input terminal of the power amplifier is connected, and the microwave control circuit adjusts the power regulator according to the feedback signal. 15 . The heat-not-burn electronic atomization device according to claim 8 , further comprising a microwave focusing device, a microwave emitting antenna is located in the microwave focusing device, and the microwave focusing device is used to emit the microwaves. 16 . At least part of the microwaves emitted by the antenna are concentrated into the atomizing cavity. 16 . The heat-not-burn electronic atomization device according to claim 15 , wherein the inner layer of the microwave focusing device is a microwave reflecting layer. 17 . 17 . The heat-not-burn electronic atomization device according to claim 16 , wherein the outer layer of the microwave concentrating device is a microwave shielding layer. 18 . 18. A microwave control method, characterized in that, applied to the electronic atomization device according to any one of claims 1 to 17, the method comprising: S1, the microwave control circuit controls the microwave generating circuit to generate microwaves, so that the microwave transmitting antenna sweeps the microwaves within a preset microwave frequency range, and the microwaves are used to heat the aerosol-generating matrix in the atomizing cavity; S2. The feedback collection circuit collects the feedback signal corresponding to the microwave, and sends the feedback signal to the microwave control circuit; S3. After the sweep frequency transmission of microwaves is completed, the microwave control circuit selects the microwave transmission frequency according to the feedback signal. 19 . The microwave control method according to claim 18 , wherein the microwave control circuit selecting the microwave transmission frequency according to the feedback signal in the step S3 comprises: the microwave control circuit selecting the microwave transmission frequency according to the feedback signal. 20 . Transmission frequency and microwave transmission power. 20. The microwave control method according to claim 18, wherein the feedback signal in the step S2 is reverse microwave power; In the step S3, the microwave control circuit selecting the microwave transmission frequency according to the feedback signal includes: the microwave control circuit selecting the microwave transmission frequency corresponding to the minimum value of the reverse microwave power. 21. The microwave control method according to claim 18, wherein before the step S1, it further comprises: S101. The microwave control circuit receives a microwave frequency selection instruction; or S102, the microwave control circuit receives an instruction that the aerosol generation substrate is installed; or S103, the microwave control circuit receives a suction instruction; or S104, the microwave control circuit presets a suction time at every interval.

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