Atomization method and atomization circuit

Abstract

The atomization method comprises a test mode and a working mode, in the test mode, test power is output to drive a resonance circuit, and a test magnetic field is generated to a target space; in the working mode, whether a heating body exists in the target space or not and the distance between the heating body and the resonance circuit are detected and determined based on the power supply current of the resonance circuit, and in the working mode, target power is determined based on a first incidence relation between the power supply current and target power of the heating body heating the aerosol generating substrate to generate target mass. And the resonance circuit is driven by the target power, so that the heating body receives the magnetic field with the same size and generates equal eddy current, the aerosol generating matrix is heated to generate aerosol with the required target quality, and the stability of the heating effect is improved.

Description

Technical Field

[0001] This invention belongs to the field of atomization technology, and particularly relates to an atomization method and atomization circuit. Background Technology

[0002] Electromagnetic induction heating, as a commonly used heating technology, has been widely applied in atomizing devices.

[0003] Among them, electromagnetic induction heating is achieved by outputting alternating excitation current to the coil of the resonant circuit to generate magnetic lines of force. The heating element is cut by the magnetic lines of force and generates eddy currents, thereby generating heat and achieving the heating effect.

[0004] In conventional atomizing devices, the driving power of the resonant circuit remains fixed during normal heating. However, the relative distance between the heating element and the resonant circuit may change under different assembly or maintenance conditions. Due to the spatial distribution of magnetic field lines with a certain field strength gradient, under the same coil excitation current, the magnitude of the eddy currents of the heating element will also change when the distance between it and the resonant circuit changes, which will lead to inconsistent heating temperatures of the heating element and unstable heating effect. Summary of the Invention

[0005] The purpose of this invention is to provide an atomization method that addresses the problem that traditional atomization devices cannot achieve consistent eddy currents when the distance between the heating element and the resonant circuit changes, resulting in unstable heating effects.

[0006] A first aspect of this invention provides an atomization method, comprising:

[0007] In test mode, a test magnetic field is generated in the target space by driving a resonant circuit based on the test power, and the heating element in the target space and the distance of the heating element relative to the resonant circuit are detected based on the supply current of the resonant circuit; wherein, the heating element is used to generate eddy currents according to the magnetic field lines and heat the aerosol generation matrix to generate aerosol.

[0008] In the working mode, the target power is determined according to the supply current and the first correlation, and the resonant circuit is driven based on the target power to generate a working magnetic field to the heating element in the target space; wherein, the first correlation is used to characterize the correlation between the supply current and the target power, the target power is the driving power corresponding to the heating element heating the aerosol to generate a matrix to generate a target mass of aerosol, and the test power is less than the target power.

[0009] Optionally, detecting the heating element within the target space and the distance of the heating element relative to the resonant circuit based on the supply current of the resonant circuit includes:

[0010] If the supply current is less than the lower current threshold, it is determined that the heating element is not configured in the target space.

[0011] When the supply current is greater than the lower current threshold, it is determined that the target space is equipped with the heating element, and the distance of the heating element relative to the resonant circuit is determined according to the supply current and the second correlation; wherein, the second correlation is used to characterize the correlation between the supply current and the distance of the heating element relative to the resonant circuit.

[0012] Optionally, the step of driving the resonant circuit based on test power to generate a test magnetic field to the target space includes:

[0013] Based on the preset duration of the test power driving the resonant circuit, a test magnetic field is generated in the target space;

[0014] The preset duration ranges from 0 to 0.5 seconds.

[0015] Optionally, before the test power-driven resonant circuit is used to generate a test magnetic field to the target space, the following steps are included:

[0016] In parameter verification mode, a second correlation is established between different distances of the heating element relative to the resonant circuit and the magnitude of the power supply current of the resonant circuit, and a third correlation is established between different distances of the heating element relative to the resonant circuit and the target power.

[0017] The first association relationship is determined based on the third association relationship and the second association relationship.

[0018] Optionally, establishing a second correlation between different distances of the heating element relative to the resonant circuit and the magnitude of the supply current of the resonant circuit includes:

[0019] The resonant circuit is driven by a fixed power, and the distance between the heating element and the resonant circuit is varied.

[0020] The resonant circuit is sampled at different distances, and the second correlation is determined based on the correspondence between different distances and different power supply currents.

[0021] Optionally, establishing a third correlation between different distances of the heating element relative to the resonant circuit and the target power includes:

[0022] The distance between the heating element and the resonant circuit is varied, and the driving power of the resonant circuit is adjusted after each distance variation, so that the heating element heats the aerosol generation matrix to generate aerosol of the target mass.

[0023] Obtain the different driving powers corresponding to the aerosols of the target mass generated at each distance, and determine the third correlation relationship based on the correspondence between different distances and different driving powers.

[0024] Optionally, the atomization method further includes:

[0025] The system switches to either a first working sequence or a second working sequence based on a first trigger signal; wherein the first working sequence includes the test mode and the working mode in sequence, and the second working sequence includes the working mode.

[0026] In the operating mode of the first operating sequence, the target power is determined based on the power supply current and the first correlation obtained in the test mode of the first operating sequence.

[0027] In the operating mode of the second operating sequence, the target power is determined based on the supply current and the first correlation obtained from the initial test mode or the test mode of the previous first operating sequence, and the resonant circuit is driven based on the target power.

[0028] Optionally, the atomization method further includes:

[0029] The system switches to either the third or second working sequence based on the second trigger signal; wherein the third working sequence sequentially includes the parameter verification mode, the test mode, and the working mode.

[0030] In the third working sequence, the first and second correlation relationships determined based on the parameter verification mode in the third working sequence are used as reference data for the test mode and working mode in the third working sequence. In the test mode, the heating element in the target space and the distance of the heating element relative to the resonant circuit are obtained, and in the working mode, the target power is obtained.

[0031] In the second working sequence, the first and second correlation relationships determined based on the initial parameter verification mode or the parameter verification mode of the previous third working sequence are used as reference data for the test mode and working mode in the third working sequence. In the test mode, the heating element in the target space and the distance of the heating element relative to the resonant circuit are obtained, and in the working mode, the target power is obtained.

[0032] A second aspect of this invention provides an atomizing circuit, comprising:

[0033] A resonant circuit is used to generate a magnetic field in the target space when powered, so as to cause the heating element in the target space to generate eddy current heating.

[0034] A drive control circuit is connected to the resonant circuit, and the drive control circuit is used to implement the steps of the atomization method described above.

[0035] Optionally, the drive control circuit includes:

[0036] A resonant drive circuit, connected to the resonant circuit, is used to controllably output different magnitudes of drive power to the resonant circuit;

[0037] A sampling circuit, connected to the resonant circuit, is used to sample the electrical parameters of the resonant circuit;

[0038] The controller is connected to both the resonant drive circuit and the sampling circuit, and is used to cooperate with the resonant drive circuit and the sampling circuit to implement the steps of the atomization method described above.

[0039] The beneficial effects of the embodiments of the present invention compared with the prior art are as follows: The above-mentioned atomization method includes a test mode and a working mode. In the test mode, the output test power drives the resonant circuit and generates a test magnetic field to the target space. Based on the power supply current of the resonant circuit, it is confirmed whether there is a heating element in the target space and the distance of the heating element relative to the resonant circuit. In the working mode, the target power is determined based on the first correlation between the power supply current and the target power of the heating element heating the aerosol to generate the matrix to generate the target mass, and the target power drives the resonant circuit, so that the heating element receives the same magnetic field and generates equal eddy currents, and heats the aerosol generating matrix to generate the required target mass of aerosol, thereby improving the stability of the heating effect. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of a first structure of the atomizing device provided in an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the first process of the atomization method provided in an embodiment of the present invention;

[0043] Figure 3 for Figure 2 A schematic diagram of the specific process of step S10 in the atomization method shown below;

[0044] Figure 4 This is a schematic diagram of a second process for the atomization method provided in an embodiment of the present invention;

[0045] Figure 5 for Figure 4 A schematic diagram of the first specific process of step S30 in the atomization method shown;

[0046] Figure 6 for Figure 4 A schematic diagram of the second specific process of step S30 in the atomization method shown;

[0047] Figure 7 This is a schematic diagram of the third process of the atomization method provided in the embodiments of the present invention;

[0048] Figure 8 This is a schematic diagram of the fourth process of the atomization method provided in the embodiments of the present invention;

[0049] Figure 9 This is a schematic diagram of a second structure of the atomizing device provided in an embodiment of the present invention;

[0050] Figure 10 This is a schematic diagram of a third structure of the atomizing device provided in an embodiment of the present invention. Detailed Implementation

[0051] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0052] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0053] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] The first aspect of this invention provides an atomization method for heating an aerosol generating matrix to generate an aerosol of a target mass. The aerosol generating matrix can be disposed within a structure such as an atomizer or atomization component. The aerosol generating matrix can be a liquid matrix such as a drug solution or plant leaves. When the heating element 1 heats the aerosol generating matrix, it generates an aerosol that can be inhaled by the user.

[0056] like Figure 1 and Figure 2 As shown, in this embodiment, the atomization method includes:

[0057] Step S10: In test mode, drive resonant circuit 10 based on test power to generate test magnetic field to target space, and detect heating element 1 in target space and distance of heating element 1 relative to resonant circuit 10 based on power supply current of resonant circuit 10; wherein, heating element 1 is used to generate eddy current according to magnetic field lines and heat aerosol to generate a matrix to generate aerosol.

[0058] In this embodiment, the resonant circuit 10 includes, but is not limited to, an LC series resonant circuit 10, an LC parallel resonant circuit 10, and a Class E power amplifier. The resonant circuit 10 includes at least a coil. The distance between the heating element 1 and the resonant circuit 10 can be the distance between the heating element 1 and the coil. After receiving an alternating excitation current, the coil generates an alternating magnetic field that spreads outwards. The heating element 1 is a metal structure. The heating element 1 generates eddy currents when cut by magnetic field lines, thereby generating self-heating and heating the aerosol generation matrix. The spatial distribution of magnetic field lines has a certain field strength gradient. That is to say, under the same coil excitation current, the magnitude of the eddy currents generated by the heating element 1 will also change when the distance changes. Therefore, in order to achieve the effect of consistent eddy currents in the heating element 1, the distance of the heating element 1 must be calculated. By calculating the distance and establishing the corresponding correlation, the excitation current of the coil can be compensated to achieve the desired heating effect.

[0059] The principle of the distance detection of heating element 1 is that, under a fixed excitation current, the energy consumed by the coil has a certain relationship with the distance between heating element 1 and the coil. Generally, the greater the distance, the less energy is consumed. By detecting the current consumed through the coil, the distance between the heating element and the coil, as well as the presence or absence of the heating element, can be calculated.

[0060] When the distance between the heating element 1 and the coil is different, the energy consumed by the heating element 1 is different. The energy consumed by the heating element 1 is equivalent to the energy supplied by the resonant circuit 10. The total energy consumed by the resonant circuit 10 is equal to the energy supplied by the resonant circuit 10 and the energy lost by the coil. Without considering the energy loss, the energy consumed by the heating element 1 can be equal to the total energy consumed by the resonant circuit 10. The total energy can be detected by measuring the supply current and supply voltage of the resonant circuit 10. That is, the total energy is equal to the product of the supply current and supply voltage.

[0061] Therefore, before formal atomization, the test mode is switched to detect the heating element. In the test mode, a small energy test power is output. In an optional embodiment, the test power is between 1W and 2W. The test power activates the resonant circuit 10. The small energy test power is insufficient to generate aerosol through the resonant circuit 10, the heating element 1, and the aerosol generation matrix, or it only generates negligible aerosol. At the same time, the supply current of the resonant circuit 10 is collected. When the test power of the resonant circuit 10 is constant and the input voltage is constant, the supply current of the resonant circuit 10 is different. Therefore, by using the known test power and supply current, it is possible to determine whether the heating element 1 exists in the target space, and when the heating element 1 exists, the distance of the heating element 1 relative to the coil.

[0062] Generally, the closer the heating element 1 is to the coil, the larger the supply current. When the heating element 1 is not placed in the target space, the supply current is very small or even close to zero.

[0063] Correspondingly, such as Figure 3 As shown, in order to determine the presence or absence of a specific heating element 1 and the distance of the heating element 1 relative to the coil, in an optional embodiment, based on the supply current of the resonant circuit 10, the heating element 1 in the target space and the distance of the heating element 1 relative to the resonant circuit 10 are detected, including:

[0064] Step S11: When the power supply current is less than the lower current threshold, determine that no heating element 1 is configured in the target space;

[0065] Step S12: When the power supply current is greater than the lower current threshold, it is determined that the target space is equipped with a heating element 1, and the distance between the heating element 1 and the resonant circuit 10 is determined according to the power supply current and the second correlation relationship; wherein, the second correlation relationship is used to characterize the correlation between the power supply current and the distance between the heating element 1 and the resonant circuit 10.

[0066] In the test mode, after outputting the test power, the magnitude of the supply current is detected and compared with the current lower limit threshold. The current lower limit threshold can be zero or greater than zero. When the supply current is detected to be less than the current lower limit threshold, it indicates that no heating element 1 is set in the current target space, which is equivalent to the distance between heating element 1 and the coil being infinite. Therefore, it can be used to detect the presence or absence of heating element 1.

[0067] Similarly, when the power supply current is greater than the lower current threshold, it indicates that a heating element 1 is set in the current target space and the distance between the heating element 1 and the coil is within the preset range of the test magnetic field. At this time, the distance between the heating element 1 and the coil is determined according to the pre-configured second correlation relationship and the detected power supply current.

[0068] In applications, a second correlation can be established between different supply currents and their corresponding distances. This second correlation can be a mapping relationship, which can exist in the form of a second correlation table. The correlation table can be a look-up table (LUT), or it can exist in a form where the corresponding search result is retrieved and output based on other input data, facilitating querying and retrieval. By establishing the correlation beforehand, when a distance needs to be queried or retrieved, only the supply current needs to be used to query and retrieve the associated distance, thereby effectively saving the computing resources and execution time of the controller 23 in the drive control circuit 20.

[0069] In order to minimize the aerosols generated during the test mode, in an optional embodiment, the step of generating a test magnetic field to the target space based on driving the resonant circuit 10 with test power includes:

[0070] Based on the preset duration of the test power driving resonant circuit 10, a test magnetic field is generated in the target space;

[0071] The preset duration ranges from 0 to 0.5 seconds.

[0072] To ensure that low energy is insufficient to generate aerosols or only generates negligible amounts of aerosols, the test power is reduced on the one hand, and the output duration of the test power is limited on the other hand, so that the resonant circuit 10 works within a preset duration and stops generating the test magnetic field after the preset duration ends, thereby reducing the generation of aerosols in the test mode and ensuring the atomization effect.

[0073] Step S20: In the working mode, the target power is determined according to the power supply current and the first correlation relationship, and the resonant circuit 10 is driven based on the target power to generate a working magnetic field to the heating element 1 in the target space; wherein, the first correlation relationship is used to characterize the correlation between the power supply current and the target power, the target power is the driving power corresponding to the heating element 1 heating the aerosol to generate a matrix to generate aerosol of the target mass, and the test power is less than the target power.

[0074] The target power corresponds to the driving power of the heating element 1 when heating the aerosol generation matrix to generate a target mass of aerosol. The driving power required to generate a specific mass of aerosol varies at different distances. The greater the distance, the greater the required target power, and the smaller the distance, the smaller the required target power.

[0075] In application, a primary correlation can be established between different supply currents obtained in test mode and their corresponding target power. This primary correlation can be a mapping relationship, which can exist in the form of a primary correlation table. The correlation table can be a look-up table (LUT), or it can exist in a form where the corresponding lookup result is output based on other input data, facilitating querying and retrieval. By establishing the correlation beforehand, when it is necessary to query and retrieve the target power, only the supply current needs to be used to query and retrieve the associated target power, thereby effectively saving the computing resources and execution time of the controller 23 in the drive control circuit 20.

[0076] After determining the first correlation and the detected power supply current, the target power at the corresponding distance is obtained by looking up a table or inputting the power supply current parameters, and the target power is output to the resonant circuit 10. The resonant circuit 10 resonates accordingly and generates an alternating magnetic field, which causes the heating element 1 to generate eddy currents that match the target power and self-heat. The heating element 1 heats the aerosol to generate a matrix and generates aerosol of the target mass.

[0077] like Figure 4 As shown, in order to obtain the aforementioned first correlation and second correlation and apply them to the test mode and operating mode, in an optional embodiment, the step of generating a test magnetic field to the target space based on the test power driving resonant circuit 10 is further included:

[0078] Step S30: In parameter verification mode, establish a second correlation between different distances of the heating element 1 relative to the resonant circuit 10 and the magnitude of the power supply current of the resonant circuit 10, and establish a third correlation between different distances of the heating element 1 relative to the resonant circuit 10 and the target power.

[0079] Step S40: Determine the first association relationship based on the third association relationship and the second association relationship.

[0080] In this embodiment, the parameter verification mode can be performed at a corresponding time before each shipment of the atomizer or atomizing device or during the product testing phase. In the parameter verification mode, by changing the different distances of the heating element 1 relative to the coil and obtaining different power supply currents at different distances, a second correlation between distance and power supply current is established corresponding to the changes in distance and power supply current.

[0081] Furthermore, after changing the distance of the heating element 1 relative to the coil, the driving power is changed until the current driving power at each distance can generate the target mass of aerosol, the current driving power is determined as the target power, and a third correlation between distance and target power is established.

[0082] Since distance is the same variable in the second and third correlations, the first correlation can be determined based on the second and third correlations, that is, the correlation between the power supply current and the target power in the test mode can be determined.

[0083] In order to obtain the second association, in an optional embodiment, such as Figure 5 As shown, in an optional embodiment, the step of establishing a second correlation between different distances of the heating element 1 relative to the resonant circuit 10 and the magnitude of the supply current of the resonant circuit 10 includes:

[0084] Step S31: Drive the resonant circuit 10 with fixed power and change the distance between the heating element 1 and the resonant circuit 10;

[0085] Step S32: Collect the different power supply currents of the resonant circuit 10 at different distances, and determine the second correlation relationship based on the correspondence between different distances and different power supply currents.

[0086] In this embodiment, under parameter verification mode, the drive control circuit 20 that drives the resonant circuit 10 operates uses a fixed switching frequency and duty cycle, that is, it generates a fixed power to drive the resonant circuit 10. At the same time, it changes the distance between the heating element 1 and the coil, and after each change in distance, it collects the power supply current under the current fixed power. By adjusting the distance and sampling the power supply current multiple times, multiple sets of data corresponding to the distance and the power supply current can be obtained. By interpolating and assigning values ​​to multiple sets of data, a second correlation relationship can be established.

[0087] Furthermore, in order to obtain a third association, in an optional embodiment, such as Figure 6 As shown, the steps for establishing the third correlation between different distances of the heating element 1 relative to the resonant circuit 10 and the target power include:

[0088] Step S33: Change the distance between the heating element 1 and the resonant circuit 10, and after each change of distance, adjust the driving power of the resonant circuit 10 so that the heating element 1 heats the aerosol generating matrix to generate the target mass of aerosol.

[0089] Step S34: Obtain the different driving powers corresponding to the aerosols of the target mass generated at each distance, and determine the third correlation relationship based on the correspondence between different distances and different driving powers.

[0090] In this embodiment, the target mass of aerosol is used as the quantitative measure, and the distance between the heating element 1 and the coil is used as the variable to determine the target power required after each change in distance.

[0091] Specifically, after each change in the distance between the heating element 1 and the coil, the driving power of the resonant circuit 10 is adjusted until the heating element 1 heats the aerosol to generate a matrix and produces the target mass of aerosol. A corresponding detection circuit can be set to detect the mass of the aerosol. After obtaining the target mass of aerosol, the current driving power is obtained. The driving power can be determined based on the product of the current input current and the current input voltage of the resonant circuit 10. The current driving power is determined as the target power at the current distance. By adjusting the distance and driving power multiple times, multiple sets of data on distance and driving power can be obtained. A third correlation relationship is established by interpolating and assigning values ​​to multiple sets of data. Based on the second and third correlation relationships, the first correlation relationship between the power supply current and the target power is determined.

[0092] Furthermore, for the same atomizing device, depending on the changing method of the heating element 1, it can operate in test mode and working mode each time, depending on whether it needs to work in test mode and working mode each time. In an optional embodiment, such as... Figure 7 As shown, the atomization method also includes:

[0093] Step S51: Switch to the first working sequence or the second working sequence according to the first trigger signal; wherein, the first working sequence includes a test mode and a working mode in sequence, and the second working sequence includes a working mode.

[0094] Step S52: In the working mode of the first working sequence, the target power is determined based on the power supply current and the first correlation obtained in the test mode of the first working sequence;

[0095] Step S53: In the working mode of the second working sequence, based on the power supply current and the first correlation obtained from the initial test mode or the test mode of the previous first working sequence, determine the target power and drive the resonant circuit 10 based on the target power.

[0096] In this embodiment, when the heating element 1 and / or the resonant circuit 10 are not repaired or replaced during use, that is, when the relative distance between the two does not change, the atomizing device can perform the heating element 1 detection only once during use. However, when the heating element 1 and / or the resonant circuit 10 are repaired or replaced during use, and the relative distance between the two changes, the atomizing device needs to perform the presence and distance detection of the heating element 1 separately.

[0097] Therefore, when using an atomizing device, users can select the working state of the atomizing device according to their needs and switch the working sequence of the atomizing method by outputting the first trigger signal.

[0098] When the atomizing device is turned on for the first time, the atomizing method sequentially performs test mode and working mode. In one or more subsequent uses, before the atomizing device is turned on again, restarted, or before the inhalation action, when the first working sequence is selected, the atomizing method sequentially performs test mode and working mode. In test mode, the test power is output and the power supply current is detected. The presence or absence of heating element 1 and the distance of heating element 1 relative to the coil are determined based on the power supply current. In working mode, the target power is determined based on the power supply current obtained in the test mode of the current working sequence, and the target power is used as the driving power to drive the resonant circuit 10, so that the resonant circuit 10 drives the heating element 1 to generate the corresponding eddy current, thereby causing the aerosol generation matrix to generate aerosol of the target mass.

[0099] In one or more subsequent uses, before the atomizing device is turned on, restarted, or before the inhalation action, when the second working sequence is selected, the atomization method only operates in the working mode. In the working mode, the target power is determined by using the power supply current obtained when the atomizing device is turned on for the first time or by using the power supply current obtained in the previous operation of the atomizing device in the first working sequence and the first correlation relationship. It is not necessary to repeatedly obtain the power supply current and determine the presence or absence of the heating element 1 and the distance of the heating element 1 relative to the coil based on the power supply current. This reduces the working sequence of the atomizing device, improves the heating efficiency of the atomizing device, and after determining the target power, the target power is used as the driving power to drive the resonant circuit 10, so that the resonant circuit 10 drives the heating element 1 to generate the corresponding eddy current, thereby enabling the aerosol generation matrix to generate the target mass of aerosol.

[0100] Users can choose to operate the atomizing device in the first or second working sequence according to their needs before each power-on, restart, or inhalation, in order to obtain the desired aerosol quality.

[0101] like Figure 8 As shown, in order to accommodate different user choices and achieve power consistency among different atomizing devices, in an optional embodiment, the atomization method further includes:

[0102] Step S61: Switch to the third working sequence or the second working sequence according to the second trigger signal; wherein, the third working sequence includes parameter verification mode, test mode and working mode in sequence;

[0103] Step S62: In the third working sequence, the first and second correlation relationships determined based on the parameter verification mode in the third working sequence are used as reference data for the test mode and working mode in the third working sequence. In the test mode, the heating element 1 in the target space and the distance of the heating element 1 relative to the resonant circuit 10 are obtained, and in the working mode, the target power is obtained.

[0104] Step S63: In the second working sequence, the first correlation relationship and the second correlation relationship determined based on the initial parameter verification mode or the parameter verification mode of the previous third working sequence are used as reference data for the test mode and the working mode in the third working sequence. In the test mode, the distance of the heating element 1 in the target space and the distance of the heating element 1 relative to the resonant circuit 10 are obtained, and in the working mode, the target power is obtained.

[0105] In this embodiment, the structure and parameters of the heating element 1, coil and drive control circuit 20 are different for different atomizing devices, or the structure and parameters of the heating element 1, coil and drive control circuit 20 may change after maintenance or replacement. The first association, second association and third association established before and after may be the same or different. Therefore, according to the needs, the user may choose to perform further verification of the parameters or not to perform verification.

[0106] Before the atomizing device leaves the factory for the first time or during the product testing phase, it operates in parameter verification mode, test mode, and working mode. In parameter verification mode, the distance of the heating element 1 is varied and the power supply current of the resonant circuit 10 is obtained to establish a second correlation between distance and power supply current. The distance of the heating element 1 is varied and the resonant circuit 10 is adjusted to obtain the target power corresponding to the aerosol of the target mass generated at different distances, establishing a third correlation between distance and target power and a first correlation between power supply current and target power. Then, based on the second correlation determined by parameter verification mode, the distance of the heating element 1 in the target space and the distance of the heating element 1 relative to the resonant circuit 10 are obtained. Based on the first correlation determined by parameter verification mode and the power supply current obtained by test mode, the target power is determined.

[0107] When verification is required again, the system operates in the third working sequence according to the received second trigger signal, and sequentially performs parameter verification mode, test mode, and working mode. In parameter verification mode, the distance of the heating element 1 is changed and the supply current of the resonant circuit 10 is obtained to establish a second correlation between the updated distance and the supply current. The distance of the heating element 1 is changed and the resonant circuit 10 is adjusted to obtain the target power corresponding to the aerosol of the target mass generated at different distances, and a third correlation between the updated distance and the target power and a first correlation between the updated supply current and the target power are established. Then, in the test mode of the third working sequence, the heating element 1 in the target space and the distance of the heating element 1 relative to the resonant circuit 10 are obtained based on the second correlation determined in the parameter verification mode of the third working sequence. In the working mode of the third working sequence, the target power is determined based on the first correlation determined in the parameter verification mode of the third working sequence and the supply current obtained in the test mode of the third working sequence.

[0108] Meanwhile, when repeated parameter verification is not required, the system operates in the second working sequence according to the received second trigger signal, i.e., in the test mode and the working mode. In the test mode of the second working sequence, the system obtains the heating element 1 in the target space and the distance between the heating element 1 and the resonant circuit 10 based on the second correlation determined by the initial parameter verification mode or the parameter verification mode of the previous third working sequence. In the working mode of the second working sequence, the system determines the target power based on the first correlation determined by the initial parameter verification mode or the parameter verification mode of the previous third working sequence and the power supply current obtained in the test mode of the third working sequence.

[0109] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0110] The beneficial effects of the embodiments of the present invention compared with the prior art are as follows: The above-mentioned atomization method includes a test mode and a working mode. In the test mode, the output test power drives the resonant circuit 10 and generates a test magnetic field to the target space. Based on the power supply current of the resonant circuit 10, it is confirmed whether there is a heating element 1 in the target space and the distance of the heating element 1 relative to the resonant circuit 10. In the working mode, the target power is determined based on the first correlation between the power supply current and the target power of the heating element 1 heating the aerosol to generate the target mass of the matrix, and the target power drives the resonant circuit 10, so that the heating element receives a magnetic field of the same magnitude and generates equal eddy currents, and heats the aerosol generating matrix to generate the required target mass of aerosol, thereby improving the stability of the heating effect.

[0111] A second aspect of this invention provides an atomizing circuit 100 for heating an aerosol generating matrix to generate a target mass of aerosol. The aerosol generating matrix can be disposed within a structure such as an atomizer or atomizing component. The aerosol generating matrix can be a liquid matrix such as a medicinal liquid or plant leaves. When the heating element 1 heats the aerosol generating matrix, it generates an aerosol that can be inhaled by the user.

[0112] like Figure 1 As shown, the atomizing circuit 100 includes:

[0113] The resonant circuit 10 is used to generate a magnetic field to the target space when it is powered, so as to generate eddy current heating in the heating element 1 in the target space;

[0114] The drive control circuit 20 is connected to the resonant circuit 10, and the drive control circuit 20 is used to implement the steps of the atomization method described above.

[0115] In this embodiment, the resonant circuit 10 includes, but is not limited to, LC series resonant circuit 10, LC parallel resonant circuit 10, Class E power amplifier, etc. The resonant circuit 10 includes at least a coil, which can be one of a spiral coil, a C-type magnetic core inductor, a U-type magnetic core inductor, or an E-type magnetic core inductor.

[0116] The distance between the heating element 1 and the resonant circuit 10 can be the distance between the heating element 1 and the coil. After receiving the alternating excitation current, the coil generates an alternating magnetic field and spreads it in all directions. The heating element 1 is a metal structure. The heating element 1 generates eddy currents when cut by magnetic field lines, thereby generating heat and heating the aerosol generation matrix. The spatial distribution of magnetic field lines has a certain field strength gradient. That is to say, under the same coil excitation current, the magnitude of the eddy current generated by the heating element 1 will also change when the distance changes. Therefore, in order to achieve the effect of consistent eddy currents in the heating element 1, the distance of the heating element 1 must be calculated. By calculating the distance and establishing the corresponding correlation, the excitation current of the coil can be compensated to achieve the required heating effect.

[0117] The principle of the distance detection of heating element 1 is that, under a fixed excitation current, the energy consumed by the coil has a certain relationship with the distance between heating element 1 and the coil. Generally, the greater the distance, the less energy is consumed. By detecting the current consumed through the coil, the distance between the heating element and the coil, as well as the presence or absence of the heating element, can be calculated.

[0118] When the distance between the heating element 1 and the coil is different, the energy consumed by the heating element 1 is different. The energy consumed by the heating element 1 is equivalent to the energy supplied by the resonant circuit 10. The total energy consumed by the resonant circuit 10 is equal to the energy supplied by the resonant circuit 10 and the energy lost by the coil. Without considering the energy loss, the energy consumed by the heating element 1 can be equal to the total energy consumed by the resonant circuit 10. The total energy can be detected by measuring the supply current and supply voltage of the resonant circuit 10. That is, the total energy is equal to the product of the supply current and supply voltage.

[0119] Therefore, the drive control circuit 20 operates in selectable parameter verification mode, test mode, and working mode based on the above atomization method. In parameter verification mode, it changes the distance of the heating element 1 and obtains the power supply current of the resonant circuit 10 to establish a second correlation between distance and power supply current. It also changes the distance of the heating element 1 and adjusts the resonant circuit 10 to obtain the target power corresponding to the aerosol of the target mass generated at different distances, establishing a third correlation between distance and target power and a first correlation between power supply current and target power. Then, in test mode, it obtains the heating element 1 in the target space and the distance of the heating element 1 relative to the resonant circuit 10 based on the second correlation determined by parameter verification mode. In working mode, it determines the target power based on the first correlation determined by parameter verification mode and the power supply current obtained by test mode.

[0120] The drive control circuit 20 can be selected from corresponding drive circuits, sampling circuits 22, etc. In an optional embodiment, such as... Figure 9 As shown, the drive control circuit 20 includes:

[0121] The resonant drive circuit 21 is connected to the resonant circuit 10 and is used to output different amounts of drive power to the resonant circuit 10 in a controlled manner.

[0122] Sampling circuit 22 is connected to resonant circuit 10 and is used to sample the electrical parameters of resonant circuit 10;

[0123] The controller 23 is connected to the resonant drive circuit 21 and the sampling circuit 22 respectively. The controller 23 is used to cooperate with the resonant drive circuit 21 and the sampling circuit 22 to implement the steps of the above atomization method.

[0124] In this embodiment, the resonant drive circuit 21 can adopt a rectifier circuit, inverter circuit or other structures. After the alternating excitation current is output to the coil of the resonant circuit 10 through the inverter, the coil generates an alternating magnetic field and spreads to the surroundings. The heating element 1 is a metal structure. The heating element 1 generates eddy currents by being cut by the magnetic field lines, thereby generating heat and heating the aerosol generation matrix. The coil generates an alternating magnetic field of different magnitudes according to the different excitation currents under different drive power.

[0125] In order to obtain the current and power of the resonant circuit 10, and thus establish different correlations and target power at different distances, the sampling circuit 22 may include two of the following: a current sampling circuit, a voltage sampling circuit, and a power sampling circuit. Based on the relationship between current, voltage, and power, parameters such as supply current and target power are determined.

[0126] The current sampling circuit, voltage sampling circuit, and power sampling circuit can use corresponding current transformers, sampling resistors, and other structures, and the specific structure is not limited.

[0127] The controller 23 has an internal storage unit for storing the computer program corresponding to the atomization method. The controller 23 operates according to the trigger signal or trigger operation, and selects to operate in parameter verification mode, test mode, and working mode. In parameter verification mode, the distance of the heating element 1 is changed and the power supply current of the resonant circuit 10 is obtained through the sampling circuit 22 to establish a second correlation between distance and power supply current. The distance of the heating element 1 is changed and the power of the resonant circuit 10 is adjusted through the resonant circuit 10 to obtain the target power corresponding to the aerosol of the target mass generated at different distances, and a third correlation between distance and target power and a first correlation between power supply current and target power are established. Then, in test mode, the distance of the heating element 1 in the target space and the distance of the heating element 1 relative to the resonant circuit 10 are obtained based on the second correlation determined by the parameter verification mode. In working mode, the target power is determined based on the first correlation determined by the parameter verification mode and the power supply current obtained by the test mode.

[0128] The present invention also proposes an atomizing device, such as Figure 10 As shown, the atomizing device includes a heating element 1, an aerosol generating matrix, and an atomizing circuit 100. The specific structure of the atomizing circuit 100 is as described in the above embodiments. Since this atomizing device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The atomizing circuit 100 and the heating element 1 are disposed opposite to each other in the target space, and the heating element 1 is correspondingly disposed with the aerosol generating matrix. The heating element 1 is used to heat the aerosol generating matrix to generate aerosol.

[0129] In this embodiment, the atomizing circuit 100 is used to generate an alternating magnetic field and diffuse it in all directions. The heating element 1 generates eddy currents by being cut by the magnetic field lines, thereby generating heat and heating the aerosol generation matrix to generate the desired target mass of aerosol.

[0130] The aerosol generating matrix can be set inside the atomizer, atomizing component, or other structures. The aerosol generating matrix can be a liquid matrix such as medicine or plant leaves. The heating element 1 can be set inside or outside the atomizing structure 2 and heats the aerosol generating matrix directly or indirectly.

[0131] The heating element 1 is a metal structure. Eddy currents are generated by the cutting of magnetic lines of force in the heating element 1. The heating element 1 can be one of aluminum foil, tin foil, or stainless steel sheet.

[0132] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An atomization method, characterized in that, include: In test mode, a test magnetic field is generated in the target space by driving a resonant circuit based on the test power, and the heating element in the target space and the distance of the heating element relative to the resonant circuit are detected based on the supply current of the resonant circuit; wherein, the heating element is used to generate eddy currents according to the magnetic field lines and heat the aerosol generation matrix to generate aerosol. In the working mode, the target power is determined according to the supply current and the first correlation, and the resonant circuit is driven based on the target power to generate a working magnetic field to the heating element in the target space; wherein, the first correlation is used to characterize the correlation between the supply current and the target power, the target power is the driving power corresponding to the heating element heating the aerosol to generate a matrix to generate a target mass of aerosol, and the test power is less than the target power.

2. The atomization method as described in claim 1, characterized in that, The method of detecting the heating element within the target space and the distance of the heating element relative to the resonant circuit based on the power supply current of the resonant circuit includes: If the supply current is less than the lower current threshold, it is determined that the heating element is not configured in the target space. When the supply current is greater than the lower current threshold, it is determined that the target space is equipped with the heating element, and the distance of the heating element relative to the resonant circuit is determined according to the supply current and the second correlation; wherein, the second correlation is used to characterize the correlation between the supply current and the distance of the heating element relative to the resonant circuit.

3. The atomization method as described in claim 1, characterized in that, The method of generating a test magnetic field in the target space by driving the resonant circuit with test power includes: Based on the preset duration of the test power driving the resonant circuit, a test magnetic field is generated in the target space; The preset duration ranges from 0 to 0.5 seconds.

4. The atomization method as described in claim 1, characterized in that, Before the test power-driven resonant circuit is used to generate a test magnetic field to the target space, the following is included: In parameter verification mode, a second correlation is established between different distances of the heating element relative to the resonant circuit and the magnitude of the power supply current of the resonant circuit, and a third correlation is established between different distances of the heating element relative to the resonant circuit and the target power. The first association relationship is determined based on the third association relationship and the second association relationship.

5. The atomization method as described in claim 4, characterized in that, The establishment of a second correlation between different distances of the heating element relative to the resonant circuit and the magnitude of the power supply current of the resonant circuit includes: The resonant circuit is driven by a fixed power, and the distance between the heating element and the resonant circuit is varied. The resonant circuit is sampled at different distances, and the second correlation is determined based on the correspondence between different distances and different power supply currents.

6. The atomization method as described in claim 4, characterized in that, The establishment of a third correlation between different distances of the heating element relative to the resonant circuit and the target power includes: The distance between the heating element and the resonant circuit is varied, and the driving power of the resonant circuit is adjusted after each distance variation, so that the heating element heats the aerosol generation matrix to generate aerosol of the target mass. Obtain the different driving powers corresponding to the aerosols of the target mass generated at each distance, and determine the third correlation relationship based on the correspondence between different distances and different driving powers.

7. The atomization method as described in claim 1, characterized in that, The atomization method further includes: The system switches to either a first working sequence or a second working sequence based on a first trigger signal; wherein the first working sequence includes the test mode and the working mode in sequence, and the second working sequence includes the working mode. In the operating mode of the first operating sequence, the target power is determined based on the power supply current and the first correlation obtained in the test mode of the first operating sequence. In the operating mode of the second operating sequence, the target power is determined based on the supply current and the first correlation obtained from the initial test mode or the test mode of the previous first operating sequence, and the resonant circuit is driven based on the target power.

8. The atomization method as described in claim 4, characterized in that, The atomization method further includes: The system switches to either the third or second working sequence based on the second trigger signal; wherein the third working sequence sequentially includes the parameter verification mode, the test mode, and the working mode. In the third working sequence, the first and second correlation relationships determined based on the parameter verification mode in the third working sequence are used as reference data for the test mode and working mode in the third working sequence. In the test mode, the heating element in the target space and the distance of the heating element relative to the resonant circuit are obtained, and in the working mode, the target power is obtained. In the second working sequence, the first and second correlation relationships determined based on the initial parameter verification mode or the parameter verification mode of the previous third working sequence are used as reference data for the test mode and working mode in the third working sequence. In the test mode, the heating element in the target space and the distance of the heating element relative to the resonant circuit are obtained, and in the working mode, the target power is obtained.

9. An atomizing circuit, characterized in that, include: A resonant circuit is used to generate a magnetic field in the target space when powered, so as to cause the heating element in the target space to generate eddy current heating. A drive control circuit is connected to the resonant circuit, and the drive control circuit is used to implement the steps of the atomization method as described in any one of claims 1 to 8.

10. The atomizing circuit as described in claim 9, characterized in that, The drive control circuit includes: A resonant drive circuit, connected to the resonant circuit, is used to controllably output different magnitudes of drive power to the resonant circuit; A sampling circuit, connected to the resonant circuit, is used to sample the electrical parameters of the resonant circuit; A controller is connected to both the resonant drive circuit and the sampling circuit, and the controller is used to cooperate with the resonant drive circuit and the sampling circuit to implement the steps of the atomization method as described in any one of claims 1 to 8.

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