Method for detecting insertion of atomization medium and electronic atomization device

Abstract

A method for detecting insertion of atomization medium and an electronic atomization device, the method for detecting insertion of atomization medium includes the steps of: inputting a microwave signal into the atomization cavity (10) and obtaining a feedback signal for the microwave signal of the atomization cavity (10) (S11); determining a microwave characteristic value of the microwave signal according to the microwave signal and the feedback signal (S12); and determining whether an atomization medium is inserted into the atomization cavity (10) according to the microwave characteristic value (S13). This detection method realizes that the electronic atomization device outputs a microwave signal from its own microwave source to detect whether an atomization medium is inserted into the atomization cavity (10), which is advantageous to reducing the structural complexity of the electronic atomization device and the detection cost.

Description

[Technical field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority from Chinese patent application no. 202210377157.0, filed on April 11, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of atomization technology, and in particular to a method for detecting atomization medium insertion and an electronic atomization device. [Background technology]

[0003] With the improvement of living standards, users have higher and higher requirements for electronic atomization devices. In order to improve the user experience, it is necessary to detect the insertion status of atomization media, so as to prevent the electronic atomization device from starting the heating function when the atomization media is not inserted, and to improve the safety performance of the electronic atomization device.

[0004] However, the cost of detecting the insertion state of the conventional atomization medium is high, and the structure of the electronic atomization device is complicated. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention provides an atomization medium insertion detection method and an electronic atomization device, which reduces the detection cost and reduces the structural complexity of the electronic atomization device. [Means for solving the problem]

[0006] In order to solve the above technical problems, the first technical solution provided by this application is as follows: This application provides a method for detecting the insertion of an atomization medium, which includes the steps of inputting a microwave signal into an atomization cavity and obtaining a feedback signal for the microwave signal of the atomization cavity, determining a microwave characteristic value of the microwave signal according to the microwave signal and the feedback signal, and determining whether an atomization medium is inserted into the atomization cavity according to the microwave characteristic value.

[0007] In one embodiment, the microwave characteristic values ​​include one or two of the reflected wave amplitude, the incident wave amplitude, the reflection coefficient, the S11 parameter, and the standing wave ratio.

[0008] In one embodiment, the microwave characteristic value is a standing wave ratio, and the step of determining whether or not an atomization medium is inserted into the atomization cavity based on the microwave characteristic value includes determining that an atomization medium is inserted into the atomization chamber in response to the standing wave ratio being less than a preset standing wave ratio.

[0009] In one embodiment, the microwave characteristic value is a standing wave ratio, and the step of determining whether an atomization medium is inserted into the atomization cavity based on the microwave characteristic value includes determining that the atomization medium is inserted into the atomization cavity in response to a difference value between the standing wave ratio and a standing wave ratio when the atomization cavity is in a first state being greater than a threshold value, where the atomization medium is not inserted into the atomization cavity when the atomization cavity is in the first state.

[0010] In one embodiment, a method of detecting atomization medium insertion includes performing the step of inputting a microwave signal into the atomization cavity in response to detecting a positional displacement signal.

[0011] In one embodiment, performing a step of inputting a microwave signal to the mist cavity in response to detecting a position movement signal includes determining a movement direction based on the position movement signal, and performing a step of inputting a microwave signal to the mist cavity in response to the movement direction being the same as a direction of inserting the mist medium into the mist cavity.

[0012] In one embodiment, the step of inputting a microwave signal to the atomization cavity includes inputting a microwave signal of a preset frequency to the atomization cavity, or inputting a microwave signal of a preset frequency range to the atomization cavity in a sweeping manner.

[0013] In one embodiment, a method for detecting insertion of an atomization medium includes obtaining a feedback signal for the microwave signal of the atomization cavity at a preset time interval, determining the microwave characteristic value, and determining whether an atomization medium is inserted into the atomization cavity, and in response to the atomization medium not being inserted into the atomization cavity within a preset time range, stopping the input of the microwave signal to the atomization cavity.

[0014] In order to solve the above technical problem, the second technical solution provided by this application is as follows: Provide an electronic atomization device, which includes an atomization cavity body, a microwave source, a detection mechanism and a processor, the atomization cavity body is formed with an atomization cavity, the atomization cavity is used to accommodate an atomization medium, the microwave source is used to input a microwave signal into the atomization cavity and heat the atomization medium in the atomization cavity, the detection mechanism is connected to the microwave source and is used to obtain a feedback signal for the microwave signal of the atomization cavity and the microwave signal, and determine a microwave characteristic value of the microwave signal according to the microwave signal and the feedback signal, the processor is respectively connected to the microwave source and the detection mechanism, and is used to control the microwave source to generate the microwave signal, and determine whether the atomization medium is inserted into the atomization cavity according to the microwave characteristic value.

[0015] In one embodiment, the detection mechanism includes a coupling module and a signal detection circuit, the coupling module is connected to the microwave source and is used for receiving a feedback signal for the microwave signal of the atomization cavity, and the signal detection circuit is connected to the coupling module and is used for obtaining a feedback signal for the microwave signal of the atomization cavity and the microwave signal, and determining a microwave characteristic value of the microwave signal based on the microwave signal and the feedback signal.

[0016] In one embodiment, the microwave characteristic values ​​include one or two of the reflected wave amplitude, the incident wave amplitude, the reflection coefficient, the S11 parameter, and the standing wave ratio.

[0017] In one embodiment, the microwave characteristic value is a standing wave ratio, and the processor is further used to determine that an atomization medium is inserted into the atomization cavity in response to the standing wave ratio being smaller than a predetermined standing wave ratio, or the processor is further used to determine that an atomization medium is inserted into the atomization cavity in response to a difference value between the standing wave ratio and a standing wave ratio when the atomization cavity is in a first state being greater than a threshold value, and wherein no atomization medium is inserted therein when the atomization cavity is in the first state.

[0018] In one embodiment, the system further includes a positional motion sensor, the positional motion sensor connected to the processor, and the processor is further adapted to control the microwave source to generate the microwave signal in response to the positional motion sensor detecting a positional motion signal.

[0019] In one embodiment, the device further includes a circuit board and a connector, wherein the microwave source, the detection mechanism and the processor are provided on the circuit board, one end of the connector is connected to the microwave source and the other end of the connector is connected to the atomization cavity.

[0020] The beneficial effects of the present application are as follows: Different from the prior art, the present application discloses a method for detecting the insertion of atomization medium and an electronic atomization device. The method for detecting the insertion of atomization medium includes: inputting a microwave signal into the atomization cavity, and obtaining a feedback signal for the microwave signal of the atomization cavity; calculating the standing wave ratio of the microwave signal according to the microwave signal and the feedback signal; and determining whether the atomization medium is inserted into the atomization cavity according to the standing wave ratio, the reflected wave or the reflection coefficient. The detection method uses the microwave source of the electronic atomization device itself to output a microwave signal, and realizes the detection of whether the atomization medium is inserted into the atomization cavity, which is advantageous to reduce the structural complexity of the electronic atomization device and reduce the detection cost. [Brief description of the drawings]

[0021] In order to more clearly describe the technical solutions in the embodiments of the present application, the following briefly describes the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. Those skilled in the art can obtain other drawings from these drawings without creative efforts. [Figure 1] 2 is a flowchart of a method for detecting insertion of atomization medium provided by a first embodiment of the present application; [Diagram 2] 4 is a flowchart of a method for detecting insertion of atomization medium provided by a second embodiment of the present application. [Diagram 3] 11 is a flowchart of a method for detecting insertion of atomization medium provided by a third embodiment of the present application. [Figure 4] FIG. 2 is a structural schematic diagram of an electronic atomization device provided by an embodiment of the present application; [Diagram 5] FIG. 2 is a structural schematic diagram of an electronic atomization device provided by an embodiment of the present application; [Figure 6] FIG. 2 is a structural schematic diagram of an electronic atomization device provided by another embodiment of the present application. [Figure 7] FIG. 5 is a schematic structural diagram of an embodiment of the atomizing cavity body of the electronic atomizing device provided in FIG. 4; [Figure 8] FIG. 8 is a schematic diagram of an assembly structure of the atomizing cavity body and the connector provided in FIG. 7. [Figure 9] FIG. 5 is a structural schematic diagram of another embodiment of the atomizing cavity body of the electronic atomizing device provided in FIG. 4 . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The technical solutions of the embodiments of the present application are described below clearly and completely with reference to the drawings of the embodiments of the present application, and it is obvious that the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without inventive efforts fall within the protection scope of the present application.

[0023] In the following description, specific details such as particular system architectures, interfaces, techniques, etc. are provided for purposes of explanation and not limitation in order to provide a thorough understanding of the present application.

[0024] The terms "first", "second", "third", etc. in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or the number of technical features indicated. Thus, a feature defined as "first", "second", "third" may explicitly or implicitly include at least one of the feature. In the description of this application, "plurality" means at least two, e.g., two, three, etc., unless otherwise clearly and specifically defined. All directional indications (e.g., up, down, left, right, front, back...) in the embodiments of this application are used to interpret the relative positional relationship, movement situation, etc. between each part in a certain position (e.g., shown in the drawings), and when the specific position changes, the directionality changes accordingly. In addition, the terms "including", "having" and any variations thereof in the embodiments of this application are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the recited steps or units, but may optionally include additional steps or units not recited, or may optionally include other steps or units specific to the process, method, product, or apparatus.

[0025] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described with reference to the embodiment may be included in at least one embodiment of the present application. The appearance of the term in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. As will be understood by those skilled in the art, both explicitly and implicitly, the embodiments described herein can be combined with other embodiments.

[0026] Hereinafter, the present application will be described in detail with reference to the drawings and embodiments.

[0027] For electronic atomization devices that use low-temperature firing heating, two methods are generally used to detect the insertion state of the atomization medium.

[0028] The first method is to design the atomization cavity into which the atomization medium is inserted to be movable. When the atomization medium is inserted into the atomization cavity, the cavity body forming the atomization cavity also moves in position, and the insertion of the atomization medium is detected by detecting the movement or change in position of the cavity body. For example, the movement of the cavity body or the change in position of the cavity body is detected using a stroke switch or a Hall switch. However, designing the atomization cavity to be movable increases the complexity of the structure and further increases the cost. In addition, if the atomization cavity moves or its position changes due to other objects, atomization heating will be started, and in this case the atomization medium will not be inserted into the atomization cavity, which creates a safety risk.

[0029] The second method is to add a magnetic material inside the atomization medium. When the atomization medium is inserted into the atomization cavity, the cavity body forming the atomization cavity is affected by the magnetic material inside the atomization medium, and its electromagnetic properties change, and the insertion of the atomization medium is detected by detecting the change in the electromagnetic properties. For example, the insertion of the atomization medium is detected by measuring the change in the magnetic flux inside the cavity body or the inductance of the coil surrounding the cavity body. However, using this detection method to detect the insertion of the atomization medium into the atomization cavity requires adding a magnetic material inside the atomization medium, which is disadvantageous to cost control.

[0030] SUMMARY OF THE DISCLOSURE In view of the problems existing in the prior art in detecting the insertion state of nebulization medium, the present application provides a method for detecting the insertion of nebulization medium and an electronic nebulization device.

[0031] Please refer to FIG. 1, which is a flow chart of the atomization medium insertion detection method provided in the first embodiment of the present application.

[0032] The method for detecting the insertion of atomizing medium provided in the first embodiment of the present application specifically includes the following steps.

[0033] Step (S11): input a microwave signal into the atomizing cavity, and obtain a feedback signal for the microwave signal of the atomizing cavity.

[0034] Specifically, the microwave source inputs a microwave signal into the atomization cavity with a preset power, where the preset power may be 10dbm-40dbm. If the preset power is less than 10dbm, the power is too small to be detected, and if the preset power is more than 40dbm, it is not suitable as a detection signal.

[0035] Optionally, the microwave source of this embodiment inputs a microwave signal of a preset frequency to the atomization cavity, or inputs a microwave signal of a preset frequency range to the atomization cavity in a sweep manner. When the microwave source inputs a microwave signal of a preset frequency to the atomization cavity, the preset frequency may be 433.05MHz to 5.857GHz. When the microwave source inputs a microwave signal of a preset frequency range to the atomization cavity in a sweep manner, the preset frequency range is an ISM frequency band, for example, 433.05MHz to 434.79MHz, 902MHz to 928MHz, 2.400GHz to 2.500GHz, 5.725GHz to 5.875GHz. Preferably, the preset frequency range may be 2.400GHz to 2.500GHz, 5.725GHz to 5.875GHz. Optionally, when the microwave source inputs a microwave signal of a preset frequency range into the atomization cavity in a sweeping manner, the preset frequency range can have a frequency step of 0.01 GHz.

[0036] As can be seen, by inputting a microwave signal of a preset frequency range into the atomization cavity in a sweeping manner, multiple frequency points can be detected, and the effectiveness and accuracy of detection can be better guaranteed. By inputting a microwave signal with a preset frequency into the atomization cavity, the detection of the insertion of the atomization medium can be realized more quickly and with lower power consumption.

[0037] Here, the microwave signal includes an amplitude of an incident microwave wave, and after the atomization cavity receives the microwave signal, it reflects the microwave signal to form a feedback signal, and the feedback signal includes an amplitude of a reflected microwave wave.

[0038] Step (S12): Determine a microwave characteristic value of the microwave signal based on the microwave signal and the feedback signal.

[0039] The microwave characteristic values ​​of a microwave signal are generally expressed using one or two of the following: standing wave ratio, reflection coefficient, S11 parameter, reflected wave amplitude, and incident wave amplitude. Among these, there is a clear relationship between the standing wave ratio, reflection coefficient, and S11 parameter.

[0040] The formula for calculating the reflection coefficient is given by the following formula (1): where Γ is the reflection coefficient, E - represents the amplitude of the reflected wave in the feedback signal, and E + represents the amplitude of the incident wave in the microwave signal.

[0041] Γ=E - / E + Formula (1)

[0042] The formula for calculating the standing wave ratio is the following formula (2): where VSWR represents the standing wave ratio, and Γ represents the reflection coefficient.

[0043] VSWR=(1+Γ) / (1-Γ) Equation (2)

[0044] The calculation formula for the S11 parameter is the following formula (3), where Γ represents the reflection coefficient.

[0045] S11=20lg(Γ) Equation (3)

[0046] In a specific detection process, a signal detection circuit can be used to process the microwave signal and the feedback signal, that is, the reflection coefficient, S11 parameter or standing wave ratio is directly detected and obtained by the signal detection circuit. If the signal detection circuit detects and obtains the reflection coefficient or S11 parameter, the standing wave ratio is calculated according to the relationship between the reflection coefficient and the standing wave ratio, or the standing wave ratio is calculated according to the relationship between the S11 parameter and the standing wave ratio. If the signal detection circuit detects and obtains the amplitude of the reflected wave and the amplitude of the incident wave, the standing wave ratio is calculated.

[0047] Step (S13): Determine whether the atomization medium is inserted into the atomization cavity according to the microwave characteristic value.

[0048] Through research, the inventors of the present application have found that the standing wave ratio when an atomization medium is inserted into the atomization cavity is significantly different from the standing wave ratio when no atomization medium is inserted into the atomization cavity, and therefore it is possible to determine whether or not an atomization medium has been inserted into the atomization cavity based on the standing wave ratio.

[0049] It can be understood that, when the microwave characteristic value is the standing wave ratio, it is directly judged whether the atomization medium is inserted into the atomization cavity; when the microwave characteristic value is the reflection coefficient, the S11 parameter, the amplitude of the reflected wave, and the amplitude of the incident wave, it is calculated according to the reflection coefficient, or the standing wave ratio is calculated according to the S11 parameter, or the standing wave ratio is calculated according to the amplitude of the reflected wave and the amplitude of the incident wave, and it is further judged whether the atomization medium is inserted into the atomization cavity according to the calculated standing wave ratio.

[0050] In one embodiment, in response to the standing wave ratio being smaller than the preset standing wave ratio, it is determined that the atomization medium is inserted into the atomization cavity. In the embodiment, a plurality of experimental standing wave ratios are obtained when the atomization medium is not inserted into the atomization cavity through multiple experiments, and the preset standing wave ratio is determined based on the multiple experimental standing wave ratios. Optionally, the average value of the multiple experimental standing wave ratios is the preset standing wave ratio. Since the standing wave ratio when the atomization medium is inserted into the atomization cavity is significantly smaller than the standing wave ratio when the atomization medium is not inserted into the atomization cavity, when it is detected that the standing wave ratio is smaller than the preset standing wave ratio, that is, it can be determined that the atomization medium is inserted into the cavity. It can be understood that the model of the electronic atomization device used in the experiment when determining the preset standing wave ratio is the same as the model of the electronic atomization device to be detected.

[0051] In another embodiment, the mist medium is determined to be inserted in the mist cavity in response to a difference value between the standing wave ratio and the standing wave ratio when the mist cavity is in a first state being greater than a threshold value. Wherein, when the mist cavity is in the first state, the mist medium is not inserted in the mist cavity. In the embodiment, a first experimental standing wave ratio is obtained by experiment when the mist medium is not inserted in the mist cavity. The mist cavity can be adapted to a plurality of models of mist medium, and the standing wave ratios are different when the mist medium of different models is inserted in the mist cavity, and a plurality of second experimental standing wave ratios are obtained by experiment when the mist medium of different models is inserted in the mist cavity. A threshold value is obtained based on a plurality of difference values ​​between the plurality of second experimental standing wave ratios and the first experimental standing wave ratio, and optionally, a minimum value of the plurality of difference values ​​between the plurality of second experimental standing wave ratios and the first experimental standing wave ratio is set as the threshold value. When the difference value between the standing wave ratio and the standing wave ratio when no atomization medium is inserted in the atomization cavity is detected to be greater than the threshold value, it can be determined that the atomization medium that is suitable for the atomization cavity is inserted in the atomization cavity. It can be understood that the model of the electronic atomization device used in the experiment to determine the threshold value is the same as the model of the electronic atomization device to be detected.

[0052] In order to achieve good detection accuracy, the standing wave ratio is designed to be close to 1 when the atomization medium is inserted into the atomization cavity, and the standing wave ratio is designed to be obviously greater than 1 when the atomization medium is not inserted into the atomization cavity. Optionally, when the atomization medium is inserted into the atomization cavity, the standing wave ratio of at least one frequency point within the above-mentioned preset frequency range is designed to be less than 3. When the atomization medium is not inserted into the atomization cavity, all the standing wave ratios within the above-mentioned preset frequency range are designed to be greater than 3.

[0053] Additionally, in response to the atomization medium being inserted into the atomization cavity, the atomization medium is heated.

[0054] Specifically, in response to the atomization medium being inserted into the atomization cavity, the microwave source is controlled to output a microwave signal according to a preset heating mode to heat the atomization medium, thereby atomizing the atomization medium to generate an aerosol.

[0055] The method of detecting the insertion of atomization medium provided by this embodiment uses the microwave source of the electronic atomization device itself to output microwave signals, and detects whether the atomization medium is inserted into the atomization cavity by the difference between the standing wave ratio when the atomization medium is inserted into the atomization cavity and the standing wave ratio when the atomization medium is not inserted into the atomization cavity, and the detection method is simple. Compared with the prior art technical solution of designing the atomization cavity to be movable to realize detection, this embodiment uses its own microwave source to realize detection, reducing the structural complexity of the electronic atomization device. And compared with the prior art technical solution of adding magnetic material to the atomization medium to realize detection, this embodiment can also realize detection for the atomization matrix without adding magnetic material, improving applicability and favoring cost reduction.

[0056] As shown in FIG. 2, FIG. 2 is a flow chart of the atomization medium insertion detection method provided in the second embodiment of the present application.

[0057] The difference between the method for detecting the insertion of an atomized medium provided by the second embodiment of the present application and the method for detecting the insertion of an atomized medium provided by the first embodiment of the present application is that the method further includes step S10 before step (S11). Here, step (S10) will be described in detail, and the description of the same part will be omitted.

[0058] Step (S10): In response to the detection of the position movement signal, a microwave signal is input to the atomization cavity.

[0059] Specifically, first determine whether there is a position movement signal, that is, first determine whether there is an action of inserting atomization medium into the atomization cavity, and then control the microwave source to input the microwave signal into the atomization cavity to complete the detection of whether the atomization medium is inserted into the atomization cavity, which is favorable to saving energy consumption. Among them, after detecting the position movement signal, quickly respond to perform the detection and identification process of whether the atomization medium is inserted into the atomization cavity, which is helpful to shorten the detection time and improve the detection efficiency.

[0060] In order to avoid unnecessary operations triggering the position movement signal and thereby waking up the input of a microwave signal to the atomization cavity and completing the detection process of whether an atomization medium is inserted into the atomization cavity, step (S10) specifically includes:

[0061] Step (S101): The movement direction is determined based on the position movement signal.

[0062] Specifically, a position movement signal is obtained by a position movement sensor.

[0063] Optionally, the position movement sensor is an acceleration sensor. When a certain action is performed, an acceleration occurs in the movement direction of the action, and the acceleration sensor detects the acceleration in the direction, and further determines the movement direction of the action. For example, an insertion action generates an acceleration in the insertion direction, and the acceleration sensor detects the acceleration in the direction, and further determines the movement direction of the insertion action.

[0064] Step (S102): In response to the moving direction being the same as the direction in which the atomization medium is inserted into the atomization cavity, input a microwave signal into the atomization cavity.

[0065] The movement direction of the position movement signal being the same as the direction in which the atomization medium is inserted into the atomization cavity indicates that there is an operation of inserting the atomization medium into the atomization cavity, and at this time, a microwave signal is input to the atomization cavity to wake up the detection process of whether the atomization medium is inserted into the atomization cavity, thereby avoiding the wake-up of the detection process caused by unnecessary operations, saving energy consumption, and improving the detection accuracy and detection efficiency.

[0066] Please refer to FIG. 3, which is a flowchart of the atomization medium insertion detection method provided by the third embodiment of the present application.

[0067] The difference between the method for detecting the insertion of atomization medium provided by the third embodiment of the present application and the method for detecting the insertion of atomization medium provided by the first embodiment of the present application is that it further includes steps (S14) and (S15). Hereinafter, the description of the same parts will be omitted.

[0068] Step (S14): Obtain a feedback signal for the microwave signal of the atomization cavity at a preset time interval, determine a microwave characteristic value, and determine whether the atomization medium is inserted in the atomization cavity.

[0069] By obtaining a feedback signal for the microwave signal of the atomization cavity at a preset time interval and determining the microwave characteristic value, a continuous detection process of whether the atomization medium is inserted into the atomization cavity is realized, which enables a quick response to the atomization medium inserted into the atomization cavity and is beneficial to improving the user's usage experience.

[0070] Step (S15): In response to the fact that the atomization medium is not inserted into the atomization cavity within a preset time range, the input of the microwave signal to the atomization cavity is stopped.

[0071] If the atomization medium is not inserted into the atomization cavity within the preset time range, the input of the microwave signal to the atomization cavity is stopped, i.e., the detection process is stopped, which is favorable for saving energy consumption. Here, the preset time range can be specifically designed according to needs. In addition, in response to the start signal of the electronic atomization device, the detection process is started and the microwave signal is input again to the atomization cavity.

[0072] It can be understood that there is no clear relationship between step (S14) and step (S15) and step (S13) and step (S14).

[0073] Steps (S14) and (S15) in the method for detecting the insertion of an atomization medium provided by the third embodiment of the present application can be applied to the method for detecting the insertion of an atomization medium provided by the second embodiment of the present application. If no atomization medium is inserted into the atomization cavity within a preset time range, the input of microwave signals to the atomization cavity is stopped, and at the same time, the detection of the position movement sensor is stopped, and the entire detection process is in a standby state.

[0074] In the detection method of the insertion of atomization medium provided by the second embodiment, when there is an action of inserting atomization medium into the atomization cavity, a detection process of whether the atomization medium is inserted into the atomization cavity is triggered, and a preset time range can be set as the time required for the atomization medium to be inserted into the atomization cavity. Within the preset time range, continuous detection is performed at preset time intervals, and if it is detected that the atomization medium is not inserted into the atomization cavity, the detection process can be stopped, which is helpful in saving energy. Optionally, the preset time range is 2S.

[0075] Please refer to FIG. 4, which is a structural schematic diagram of an electronic atomization device provided in one embodiment of the present application.

[0076] The electronic atomization device includes an atomization cavity body 11, a microwave source 15, a detection mechanism 16, and a processor 17. The atomization cavity body 11 is formed with an atomization cavity 10, and the atomization cavity 10 is used to accommodate an atomization medium. The microwave source 15 is used to input a microwave signal into the atomization cavity 10 and heat the atomization medium in the atomization cavity 10. The detection mechanism 16 is connected to the microwave source 15 and is used to obtain a microwave signal and a feedback signal for the microwave signal of the atomization cavity 10, and determine a microwave characteristic value of the microwave signal according to the microwave signal and the feedback signal. The processor 17 is connected to the microwave source 15 and the detection mechanism 16 respectively and is used to control the microwave source 15 to generate a microwave signal, and to determine whether an atomization medium is inserted into the atomization cavity 10 according to the microwave characteristic value.

[0077] Optionally, the electronic atomization device includes a circuit board 12, a battery 13, and a connector 14, and a microwave source 15, a detection mechanism 16, and a processor 17 are provided on the circuit board 12. The battery 13 is connected to the circuit board 12 to provide power to the microwave source 15. One end of the connector 14 is connected to the microwave source 15, and the other end of the connector 14 is connected to the atomization cavity body 11.

[0078] The processor 17 controls the microwave source 15 to input a microwave signal to the atomization cavity 10, thereby heating the atomization medium in the atomization cavity 10. Specifically, the microwave source 15 inputs a microwave signal to the atomization cavity 10 through the connector 14. The microwave signal input by the microwave source 15 to the atomization cavity 10 is further used to detect whether the atomization medium is inserted into the atomization cavity 10. It can be understood that the microwave signal for heating the atomization medium in the atomization cavity 10 may be the same as or different from the microwave signal for detecting whether the atomization medium is inserted into the atomization cavity 10, and is specifically designed according to needs.

[0079] Please refer to FIG. 5, which is a structural schematic diagram of an electronic atomization device provided in one embodiment of the present application.

[0080] The detection mechanism 16 is connected to the microwave source 15 and is used to obtain the microwave signal and the feedback signal for the microwave signal of the atomization cavity 10, and to determine the microwave characteristic value of the microwave signal based on the microwave signal and the feedback signal.

[0081] The detection mechanism 16 includes a coupling module 161 and a signal detection circuit 162. The coupling module 161 is connected to the microwave source 15 and is used for receiving a feedback signal for the microwave signal of the atomization cavity 10. The signal detection circuit 162 is connected to the coupling module 161 and is used for obtaining the microwave signal and the feedback signal for the microwave signal of the atomization cavity 10, and determining the microwave characteristic value of the microwave signal according to the microwave signal and the feedback signal.

[0082] The processor 17 is respectively connected to the microwave source 15 and the detection mechanism 16, and is used to control the microwave source 15 to generate a microwave signal, and to determine whether or not an atomization medium is inserted into the atomization cavity 10 based on the characteristic value of the microwave.

[0083] Specifically, the microwave characteristic value includes one or two of the amplitude of the reflected wave, the amplitude of the incident wave, the reflection coefficient, the S11 parameter, and the standing wave ratio. There is a clear relationship between the standing wave ratio, the reflection coefficient, and the S11 parameter, and the specific content can be referred to. The microwave characteristic value is the standing wave ratio, or the standing wave ratio obtained by calculation. The processor 17 is used to determine that the atomization medium is inserted into the atomization cavity 10 in response to the standing wave ratio being smaller than a preset standing wave ratio. Or, the processor 17 is further used to determine that the atomization medium is inserted into the atomization cavity 10 in response to the difference value between the standing wave ratio and the standing wave ratio when the atomization cavity 10 is in a first state being greater than a threshold value, where no atomization medium is inserted therein when the atomization cavity 10 is in the first state. In the detection principle diagram provided by FIG. 5, the specific implementation of the detection process can refer to the first embodiment of the method for detecting the insertion of atomization medium introduced above, and the description is omitted here.

[0084] In addition, the processor 17, the detection mechanism 16 and the microwave source 15 cooperate to obtain a feedback signal for the microwave signal of the atomization cavity 10 at a preset time interval, determine the microwave characteristic value, and continuously execute the detection process of whether the atomization medium is inserted into the atomization cavity. If the atomization medium is not inserted into the atomization cavity 10 within the preset time range, the input of the microwave signal to the atomization cavity 10 is stopped, that is, the detection process is stopped, which is favorable to saving energy consumption. The specific process of continuously executing the detection process can be referred to the third embodiment of the method for detecting the insertion of the atomization medium introduced above, and the description is omitted here.

[0085] Please refer to FIG. 6, which is a structural schematic diagram of an electronic atomization device provided by another embodiment of the present application.

[0086] Continuing to refer to Fig. 4, the electronic atomization device further includes a position movement sensor 18, which is provided on the circuit board 12. Referring to Fig. 6, the position movement sensor 18 is connected to the processor 17, which is also used to control the microwave source 15 to generate a microwave signal in response to the position movement sensor 18 detecting the position movement signal. Before the electronic atomization device is in standby mode and not in use, the processor 17 sets the position movement sensor 18 to a power saving mode. When the atomization cavity 10 is inserted, the position movement sensor 18 detects the operation, and then activates the processor 17 through an interrupt pin, and controls the microwave source 15 to input a microwave signal into the atomization cavity 10. The processor 17 then obtains the standing wave ratio of the atomization cavity 10 through the detection mechanism 16, and completes the detection process of whether the atomization medium is inserted into the atomization cavity 10 according to the difference between the standing wave ratio when the atomization medium is inserted into the atomization cavity 10 and the standing wave ratio when the atomization medium is not inserted into the atomization cavity 10. In the detection principle diagram provided in FIG. 6, the specific implementation of the detection process can be referred to the second embodiment of the method for detecting the insertion of the atomization medium introduced above, and the description is omitted here.

[0087] In addition, the processor 17, the detection mechanism 16, the microwave source 15 and the position movement sensor 18 cooperate to obtain a feedback signal for the microwave signal of the atomization cavity 10 at a preset time interval, determine the microwave characteristic value, and continuously execute the detection process of whether the atomization medium is inserted into the atomization cavity. If the atomization medium is not inserted into the atomization cavity 10 within the preset time range, the input of the microwave signal to the atomization cavity 10 is stopped, that is, the detection process is stopped, which is favorable to saving energy consumption. The specific process of continuously executing the detection process can be referred to the third embodiment of the method for detecting the insertion of the atomization medium introduced above, and the description will be omitted here.

[0088] It can be understood that after determining that the atomization medium is inserted into the atomization cavity 10, the processor 17 controls the microwave source 15 to output a microwave signal to the atomization cavity 10 according to a preset heating mode to heat the atomization medium and atomize the atomization medium to generate an aerosol. At the same time, the processor 17 controls an indicator light (not shown) of the electronic atomization device to perform a corresponding light indication.

[0089] Referring to Figures 7 and 8, Figure 7 is a structural schematic diagram of one embodiment of the atomization cavity body of the electric atomization device provided in Figure 4, and Figure 8 is an assembled structural schematic diagram of the atomization cavity body and connector provided in Figure 7.

[0090] The atomization cavity body 11 is a hollow cylindrical structure, and its internal space forms the atomization cavity 10. The shape of the atomization cavity 10 is designed according to the shape of the atomization medium. Since the atomization medium is generally cylindrical, the cross-sectional shape of the atomization cavity 10 is set to be circular, thereby ensuring the convenience of assembling the atomization medium and the atomization cavity 10. The material of the atomization cavity body 11 is metal, or the surface of the atomization cavity body 11 is provided with a metal coating, which is used to meet the requirements of radio frequency shielding and radio frequency power supply.

[0091] In this embodiment, the power supply method of the atomizing cavity 10 is to connect to the microwave source 15 (shown in FIG. 8) through the connector 14, which ensures the convenience of connection and is advantageous for the miniaturization of the electronic atomizing device. In another embodiment, the power supply method of the atomizing cavity 10 may be to connect to the microwave source 15 through a radio frequency ejector pin, as long as it can realize the convenience of connection and the miniaturization of the electronic atomizing device.

[0092] 7 and 8, a through hole 111 is provided on the side wall of the atomizing cavity body 11, and the connector 14 is provided in the through hole 111 to realize the connection between the connector 14 and the atomizing cavity body 11. An internal conductor 112 is provided on the bottom surface of the atomizing cavity 10, and the internal conductor 112 is spaced apart from the inner surface of the atomizing cavity body 11. The connector 14 includes a signal input terminal 141, which is abutted against the internal conductor 112, thereby realizing the input of a microwave signal to the atomizing cavity 10.

[0093] Optionally, the inner conductor 112 is integrally formed with the atomization cavity body 11 .

[0094] Optionally, an antenna 113 is provided at an end of the inner conductor 112 away from the bottom surface of the atomization cavity 10, and the axis of the antenna 113 overlaps with the axis of the inner conductor 112 (as shown in FIG. 7 ). The end of the antenna 113 away from the bottom surface of the atomization cavity 10 does not protrude from the atomization cavity 10. When the atomization medium is inserted into the atomization cavity 10, the antenna 113 is inserted inside the atomization medium.

[0095] In another embodiment, as shown in FIG. 9, FIG. 9 is a structural schematic diagram of another embodiment of the atomization cavity body of the electronic atomization device provided in FIG. 4. A plurality of antennas 113 are provided at the end of the internal conductor 112 away from the bottom surface of the atomization cavity 10, and the plurality of antennas 113 are equally spaced along the circumferential direction of the internal conductor 112 (as shown in FIG. 9). The end of the antenna 113 away from the bottom surface of the atomization cavity 10 does not protrude from the atomization cavity 10. When the atomization medium is inserted into the atomization cavity 10, the plurality of antennas 113 are locked on the surface of the atomization medium. The antenna 113 includes a first part 1131 and a second part 1132. The extension directions of the first portion 1131 and the second portion 1132 are perpendicular, with the first portion 1131 extending from the side of the inner conductor 112 toward the inner surface of the atomization cavity body 11, and the second portion 1132 extending along the axial direction of the atomization cavity body 11.

[0096] The electronic atomization device provided in the present specification utilizes its own microwave source 15 to detect whether the atomization medium is inserted into the atomization cavity 10, which reduces the structural complexity of the electronic atomization device and can also detect the atomization matrix without adding magnetic material, which is advantageous in improving applicability and reducing costs.

[0097] The above are only the embodiments of the present application and do not limit the scope of the patent of the present application. Any equivalent structure or equivalent flow conversion made by utilizing the contents of the specification and drawings of the present application, or directly or indirectly applied to other related technical fields, are also included in the scope of the claims of the present application.

Claims

1. inputting a microwave signal into an atomization cavity, and obtaining a feedback signal for the microwave signal of the atomization cavity; determining a microwave characteristic value of the microwave signal based on the microwave signal and the feedback signal; determining whether an atomization medium is inserted into the atomization cavity based on the microwave characteristic value; A method for detecting insertion of an atomizing medium, comprising:

2. The method for detecting the insertion of an atomized medium according to claim 1, wherein the microwave characteristic value includes one or two of the following: the amplitude of a reflected wave, the amplitude of an incident wave, a reflection coefficient, an S11 parameter, and a standing wave ratio.

3. The microwave characteristic value is a standing wave ratio, and the step of determining whether an atomization medium is inserted into the atomization cavity based on the microwave characteristic value includes:

3. The method for detecting insertion of an atomization medium as described in claim 2, further comprising determining that the atomization medium is inserted into the atomization cavity in response to the standing wave ratio being smaller than a predetermined standing wave ratio.

4. The microwave characteristic value is a standing wave ratio, and the step of determining whether an atomization medium is inserted into the atomization cavity based on the microwave characteristic value includes: determining that the atomization medium is inserted into the atomization cavity in response to a difference between the standing wave ratio and a standing wave ratio when the atomization cavity is in a first state being greater than a threshold value; 3. The method for detecting insertion of an atomization medium according to claim 2, wherein when the atomization cavity is in the first state, the atomization medium is not inserted into the atomization cavity.

5. The method for detecting the insertion of an atomizing medium as described in claim 1, characterized in that the method for detecting the insertion of an atomizing medium includes performing a step of inputting a microwave signal to the atomizing cavity in response to detecting a position movement signal.

6. responsive to detecting the positional movement signal, performing the step of inputting a microwave signal to the atomization cavity; determining a direction of movement based on the position movement signal; In response to the moving direction being the same as a direction of inserting the atomization medium into the atomization cavity, performing a step of inputting a microwave signal into the atomization cavity; 6. The method for detecting insertion of an atomizing medium according to claim 5, further comprising:

7. 2. The method for detecting the insertion of an atomization medium according to claim 1, wherein the step of inputting a microwave signal into the atomization cavity includes inputting a microwave signal of a preset frequency into the atomization cavity, or inputting a microwave signal of a preset frequency range into the atomization cavity in a sweep manner.

8. The method for detecting insertion of the atomizing medium includes the steps of: Obtaining a feedback signal for the microwave signal of the atomization cavity at a preset time interval, determining the microwave characteristic value, and determining whether the atomization medium is inserted into the atomization cavity; In response to the atomization medium not being inserted into the atomization cavity within a preset time range, stopping the input of the microwave signal to the atomization cavity; 5. The method for detecting insertion of an atomizing medium according to claim 3, further comprising:

9. An electronic atomization device including an atomization cavity body, a microwave source, a detection mechanism, and a processor, The atomization cavity body is formed with an atomization cavity, and the atomization cavity is used to accommodate an atomization medium; The microwave source is used to input a microwave signal into the atomization cavity to heat the atomization medium in the atomization cavity; The detection mechanism is connected to the microwave source, and is used for obtaining a feedback signal for the microwave signal of the atomization cavity and the microwave signal, and determining a microwave characteristic value of the microwave signal according to the microwave signal and the feedback signal; The electronic atomization device is characterized in that the processor is respectively connected to the microwave source and the detection mechanism, and is used for controlling the microwave source to generate the microwave signal, and determining whether the atomization medium is inserted into the atomization cavity based on the microwave characteristic value.

10. the detection mechanism includes a coupling module and a signal detection circuit; The coupling module is connected to the microwave source and is used for receiving a feedback signal for the microwave signal of the atomization cavity; 10. The electronic atomization device according to claim 9, wherein the signal detection circuit is connected to the coupling module, and is used for obtaining a feedback signal for the microwave signal of the atomization cavity and the microwave signal, and determining a microwave characteristic value of the microwave signal according to the microwave signal and the feedback signal.

11. 10. The electronic atomization device of claim 9, wherein the microwave characteristic value includes one or two of the following: a reflected wave amplitude, an incident wave amplitude, a reflection coefficient, an S11 parameter, and a standing wave ratio.

12. The microwave characteristic value is a standing wave ratio, and the processor is further adapted to determine that the atomization medium is inserted into the atomization cavity in response to the standing wave ratio being less than a preset standing wave ratio; or 12. The electronic atomization device of claim 11, wherein the processor is further configured to determine that the atomization medium is inserted into the atomization cavity in response to a difference value between the standing wave ratio and a standing wave ratio when the atomization cavity is in a first state being greater than a threshold value, and wherein when the atomization cavity is in the first state, the atomization medium is not inserted into the atomization cavity.

13. 10. The electronic atomization device of claim 9, further comprising a position movement sensor, the position movement sensor being connected to the processor, the processor being further used for controlling the microwave source to generate the microwave signal in response to the position movement sensor detecting a position movement signal.

14. 10. The electronic atomization device of claim 9, further comprising a circuit board and a connector, the microwave source, the detection mechanism and the processor are mounted on the circuit board, one end of the connector is connected to the microwave source, and the other end of the connector is connected to the atomization cavity.

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