Aerosol generating device and insertion detection method

Abstract

The embodiment of the invention belongs to the technical field of aerosol generation device control, and relates to an aerosol generation device and an insertion detection method. The aerosol generating device comprises a to-be-heated component; the main body is provided with an insertion opening, and the insertion opening is used for insertion of a to-be-heated assembly; the magnetic field piece is arranged on the side, facing the interior of the main body, of the insertion opening; and the detection piece is electrically connected with the magnetic field piece and is used for detecting the inductance value of the magnetic field piece. When a to-be-heated assembly is inserted into the insertion opening and moves towards the magnetic field piece, the inductance value of the magnetic field piece can be influenced, and the detection piece can judge whether the to-be-heated assembly is inserted into the main body or not by detecting factors such as the change rate and the numerical value of the inductance value of the magnetic field piece.

Description

Technical Field

[0001] This application relates to the technical field of aerosol generating device control, and more specifically, to an aerosol generating device and an insertion detection method. Background Art

[0002] An aerosol generating device generally includes a component to be heated and a main body. An aerosol generating medium is provided in the component to be heated, and a heating element is provided in the main body. When using the aerosol generating device, the component to be heated needs to be inserted into the main body so that the heating element inside the main body can heat the aerosol generating medium in the component to be heated, thereby generating aerosol for the user to consume.

[0003] The aerosol generating device needs to detect whether the component to be heated has been inserted into the main body to avoid dry burning of the heating element. Existing aerosol generating devices usually set a button in the main body to detect whether the component to be heated has been inserted into the main body by touching the button after the component to be heated is inserted. However, if other objects are inserted into the main body, the main body will still misdetect and think that the component to be heated has been inserted. Therefore, the existing structures and methods for detecting whether the component to be heated is inserted into the aerosol generating device have instability and cannot effectively detect whether the component to be heated has been inserted into the main body.

[0004] In summary, the existing aerosol generating device has low accuracy in detecting whether the component to be heated is inserted into the main body. Summary of the Invention

[0005] The technical problem to be solved by the embodiments of this application is the problem of low use efficiency of some aerosol generating devices and low accuracy in detecting whether the component to be heated is inserted into the main body.

[0006] To solve the above technical problems, the embodiments of this application adopt the following solutions:

[0007] An aerosol generating device, comprising:

[0008] A component to be heated;

[0009] A main body, the main body is provided with an insertion port for the component to be heated to be inserted;

[0010] A magnetic field component, the magnetic field component is arranged on one side of the insertion port facing the inside of the main body;

[0011] A detection component, the detection component is electrically connected to the magnetic field component and is used to detect the inductance of the magnetic field component.

[0012] Further, the aerosol generating device further includes a control component and a heating component. The control component is electrically connected to the detection component and the heating component and is used to control the heating component to start or stop according to the information of the detection component.

[0013] Furthermore, the aerosol generating device further includes a sealing cover for sealing or opening the insertion port;

[0014] The detection member is electrically connected to the sealing cover, and is configured to detect the position of the sealing cover relative to the insertion port, and initiate the inductance detection of the magnetic field member according to the position of the sealing cover relative to the insertion port.

[0015] Furthermore, the magnetic field member includes an exciting coil;

[0016] Wherein, the exciting coil surrounds to form a disc-shaped structure, and the component to be heated moves towards the exciting coil in a first direction, and the first direction is the normal direction of the exciting coil; or,

[0017] The exciting coil surrounds to form a hollow columnar structure, and the component to be heated is inserted into the exciting coil.

[0018] Furthermore, the aerosol generating device includes a PCB board, on which a magnetic field member is arranged. The magnetic field member is a metal trace spirally distributed on the PCB board, and the component to be heated moves towards the metal trace in a first direction, and the first direction is the normal direction of the PCB board.

[0019] Correspondingly, the present application further provides an insertion detection method, which is applied to the aerosol generating device according to any one of the above embodiments. The method includes:

[0020] The detection member obtains the inductance of the magnetic field member;

[0021] Judge whether the component to be heated enters the insertion port according to the inductance.

[0022] Furthermore, the step of judging whether the component to be heated enters the insertion port according to the inductance includes:

[0023] Set a first threshold, compare whether the inductance reaches the threshold, and if so, judge that the component to be heated has entered the insertion port; and / or,

[0024] Set a second threshold, compare whether the change rate of the inductance reaches the second threshold, and if so, judge that the component to be heated has entered the insertion port.

[0025] Furthermore, the aerosol generating device further includes a control member and a heating member. The control member is electrically connected to the detection member and the heating member, and is configured to judge that the component to be heated has entered the insertion port;

[0026] After the step of determining that the component to be heated has entered the insertion port, the following steps are further included:

[0027] The detection component generates a first control signal;

[0028] The control component controls the heating component to start according to the first control signal.

[0029] Further, after controlling the heating component to start, the following steps are further included:

[0030] The detection component detects whether the inductance of the magnetic field component reaches a first threshold value. If so, a second control signal is generated;

[0031] The control component controls the heating component to turn off according to the second control signal; and / or,

[0032] The detection component detects whether the change rate of the inductance of the magnetic field component reaches a second threshold value. If so, a second control signal is generated;

[0033] The control component controls the heating component to turn off according to the second control signal.

[0034] Further, the aerosol generating device further includes a sealing cover for sealing or opening the insertion port; the detection component is electrically connected to the sealing cover for detecting the position of the sealing cover relative to the insertion port and starting to detect the inductance of the magnetic field component according to the position of the sealing cover relative to the insertion port;

[0035] Before the step in which the detection component obtains the inductance of the magnetic field component, the following steps are further included:

[0036] The detection component detects whether the insertion port is in an open state. If so, it starts to obtain the inductance of the magnetic field component.

[0037] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0038] When the component to be heated moves towards the magnetic field component after being inserted into the insertion port, it will affect the inductance of the magnetic field component. The detection component can judge whether the component to be heated has been inserted into the main body by detecting factors such as the change rate and numerical value of the inductance of the magnetic field component. Description of the Drawings

[0039] In order to more clearly illustrate the solutions in the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0040] Figure 1 is a schematic structural diagram of the aerosol generating device according to an embodiment of the present application;

[0041] Figure 2 is a schematic structural diagram of the magnetic field component in the aerosol generating device;

[0042] Figure 3 is a flowchart of the insertion detection method according to an embodiment of the present application.

[0043] Reference numerals:

[0044] heating component to be heated 10, main body 100, insertion channel 110, magnetic field component 200, sealing cover 300, PCB board 400, battery 500. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0046] In the present application, unless otherwise stated, the orientation terms such as "upper" and "lower" usually refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. In addition, in the description of the present application, the term "comprising" means "including but not limited to". The terms first, second, third, etc. are only used as labels and do not impose numerical requirements or establish an order.

[0047] In the present application, "and / or" describes the association relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. Where A and B may be singular or plural.

[0048] In the present application, "at least one" means one or more, and "multiple" means two or more. "At least one kind", "at least one item (piece) below" or similar expressions refer to any combination of these items, including any combination of single item (piece) or plural items (pieces). For example, "at least one item (piece) among a, b, or c", or, "at least one item (piece) among a, b, and c" can both represent: a, b, c, a - b (i.e., a and b), a - c, b - c, or a - b - c, where a, b, and c can be single or multiple respectively.

[0049] Various embodiments of the present application may exist in the form of a range; it should be understood that the description in the form of a range is only for convenience and brevity, and should not be construed as a rigid limitation on the scope of the present application; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single values within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and single numbers within the range, such as 1, 2, 3, 4, 5, and 6, which applies regardless of the range. Additionally, whenever a numerical range is indicated herein, it means including any cited numbers (fractions or integers) within the indicated range.

[0050] Please refer to Figure 1 , the present application provides an aerosol generating device, comprising:

[0051] A heating component 10 to be heated;

[0052] A main body 100, the main body 100 is provided with an insertion opening (not shown in the figure), and the insertion opening is used for the heating component 10 to be inserted;

[0053] A magnetic field member 200, the magnetic field member 200 is arranged on one side of the insertion opening facing the inside of the main body 100;

[0054] A detection member, the detection member is electrically connected to the magnetic field member 200 and is used for detecting the inductance of the magnetic field member 200.

[0055] In this embodiment, since the magnetic field member 200 is arranged on one side of the insertion opening facing the inside of the main body 100, when the heating component 10 of the aerosol generating device is inserted into the main body 100 towards the insertion opening, it gradually approaches the magnetic field member 200. At this time, the magnetic field of the magnetic field member 200 itself will change, thereby causing the magnetic flux of the magnetic field member 200 to change, so that its inductance changes.

[0056] Therefore, the detection member can judge whether the heating component 10 has been inserted into the main body 100 by detecting factors such as the change rate and numerical value of the inductance of the magnetic field member 200.

[0057] It should be understood that a magnetic core structure, an electromagnet, etc. capable of causing a change in the inductance of the magnetic field component 200 can be provided on the component 10 to be heated. For example, when a magnetic core structure is provided on the component 10 to be heated, the magnetic core structure has a high magnetic permeability and can concentrate and enhance the magnetic field. When the component 10 to be heated moves towards the magnetic field component 200, the magnetic core will cause an increase in the magnetic flux around the magnetic field component 200, resulting in an increase in the inductance. When the component 10 to be heated moves away from the magnetic field component 200, it will cause a decrease in the inductance. The main body 100 can also be provided with components for displaying a display screen and lights. After the detection component determines that the component 10 to be heated has been inserted into the main body 100, the current state (the state where the component 10 to be heated has entered the insertion port) is presented in the form of display on the display screen, flashing of lights, etc. The aerosol generating device can also include a battery 500, and the battery 500 is used to supply power to structures such as the detection component and the magnetic field component 200. As Figure 1 shown, an insertion channel 110 can be provided on the main body 100. The insertion channel 110 can be used to accommodate the component 10 to be heated. The insertion port is provided at one end of the insertion channel 110 away from the main body 100 and communicates the insertion channel 110 with the external environment.

[0058] In the prior art, the activation of the heating component in the aerosol generating device requires manual control by the user, and its use efficiency is low. That is, the user needs to insert the component 10 to be heated into the main body 100, and then start the heating component by pressing a button, voice or other means, and only then can aerosol be generated.

[0059] To solve the above problems, further, please refer to Figure 1 , the aerosol generating device further includes a control component and a heating component (not shown in the figure). The control component is electrically connected to the detection component and the heating component and is used to control the activation or deactivation of the heating component according to the information of the detection component.

[0060] In this embodiment, the control component is electrically connected to the detection component. Therefore, the control component can obtain information on whether the component 10 to be heated has entered the insertion port through the detection component. And after the component 10 to be heated enters the insertion port, the heating component is activated to heat the component 10 to be heated to generate aerosol for the user to inhale. Therefore, the aerosol generating device in this embodiment does not require the user to manually press a button or perform a voice operation on the heating component, so the use efficiency of the aerosol generating device can be effectively improved. It should be understood that the control component can be integrated on the PCB board. The detection of the inductance of the magnetic field component and the current control can be achieved through an MCU chip and an inductance digital converter. Specifically, the MUC chip is connected to the inductance digital converter, and the inductance digital converter is connected to the magnetic field component.

[0061] It should be understood that when the detection component can detect that the component 10 to be heated has not entered the insertion port, the heating component is turned off to avoid energy loss.

[0062] Further, please refer to Figure 1 , the aerosol generating device further includes a sealing cover 300 for sealing or opening the insertion port;

[0063] The detection component is electrically connected to the sealing cover 300, and is used to detect the position of the sealing cover 300 relative to the insertion port, and start the inductance detection of the magnetic field component 200 according to the position of the sealing cover 300 relative to the insertion port.

[0064] In this embodiment, the detection component detecting the magnetic field component 200 will consume energy. If the state of detecting the magnetic field component 200 is continuously maintained, energy loss will be caused. Therefore, in this embodiment, the sealing cover 300 is provided. When the sealing cover 300 is in the closed state, it indicates that the user temporarily does not need to start the aerosol generating device. At this time, the detection component does not need to detect the inductance of the magnetic field component 200. When the sealing cover 300 is in the open state, it indicates that the user needs to start the aerosol generating device. At this time, the detection component starts to detect the inductance of the magnetic field component 200. Therefore, the aerosol generating device of this embodiment can effectively reduce energy consumption.

[0065] It should be understood that the action of the detection component starting to detect the magnetic field component 200 can be when the sealing cover 300 is fully opened, or when the sealing cover 300 just starts to open. If the magnetic field component 200 is detected when the sealing cover 300 just starts to open, it can avoid the problem that the user inserts too fast (completes the insertion action before the detection component detects the inductance of the magnetic field component 200) and fails to recognize the insertion of the component 10 to be heated. The sealing cover 300 can be a magnetic adsorption type sealing cover 300 (sealing the insertion port when magnetically adsorbed) or an electric type sealing cover 300 (opening the sealing port when powered on). At this time, the detection component can obtain the current state of the insertion port by detecting whether the magnetic adsorption type sealing cover 300 is in the magnetic adsorption state, or detecting whether the sealing cover 300 is powered on.

[0066] Further, please refer to Figure 2 , the magnetic field component 200 includes an exciting coil;

[0067] Wherein, the exciting coil surrounds to form a disc-shaped structure, and the component 10 to be heated moves towards the exciting coil along the first direction, and the first direction is the normal direction of the exciting coil; or,

[0068] The exciting coil surrounds to form a hollow columnar structure, and the component 10 to be heated is inserted into the exciting coil.

[0069] In this embodiment, by designing two different structural forms (disc-shaped or hollow columnar) of the exciting coil, the component 10 to be heated with different insertion paths can be adapted. When the exciting coil is disc-shaped ( Figure 2) When the component 10 to be heated is inserted vertically along the normal direction, the magnetic field distribution is concentrated, which is beneficial to improving the sensitivity of the inductance change; when the excitation coil is a hollow column (not shown in the figure), the component 10 to be heated directly passes through the inside of the coil, and the magnetic flux change path is shorter, which can quickly respond to the insertion action. This structural flexibility enables the device to adapt to the needs of various product forms.

[0070] Furthermore, please refer to Figure 1 , the aerosol generating device includes a PCB board 400, a magnetic field component 200 is arranged on the PCB board 400, the magnetic field component 200 is a metal trace, the metal trace is spirally distributed on the PCB board 400, and the component 10 to be heated moves along the first direction towards the metal trace, and the first direction is the normal direction of the PCB board 400.

[0071] In this embodiment, the magnetic field component 200 is directly integrated on the metal trace of the PCB board 400, without the need to additionally install an independent coil component, which reduces the assembly complexity and production cost. The spiral metal trace realizes a high-density magnetic field distribution within a limited PCB area. When the component 10 to be heated is inserted along the normal direction, its magnetic core structure can maximize the disturbance of the magnetic field, significantly increasing the amplitude of the inductance change, thereby improving the detection accuracy. In addition, the PCB integrated design is beneficial to the miniaturization of the aerosol generating device.

[0072] Correspondingly, please refer to Figures 1 to 3 , the present application also provides an insertion detection method, which is applied to the aerosol generating device in any one of the above embodiments. The method includes:

[0073] The detector obtains the inductance of the magnetic field component 200;

[0074] Judge whether the component 10 to be heated enters the insertion port according to the inductance.

[0075] In this embodiment, the detector can judge whether the component 10 to be heated has been inserted into the main body 100 by detecting factors such as the change rate and numerical value of the inductance of the magnetic field component 200. Therefore, the insertion detection method of this embodiment can effectively detect whether the component 10 to be heated is inserted into the main body 100.

[0076] Furthermore, the step of judging whether the component 10 to be heated enters the insertion port according to the inductance includes:

[0077] Set a first threshold, compare whether the inductance reaches the threshold, if so, judge that the component 10 to be heated has entered the insertion port; and / or,

[0078] Set a second threshold, compare whether the change rate of the inductance reaches the second threshold, if so, judge that the component 10 to be heated has entered the insertion port.

[0079] In this embodiment, when the inductance reaches the first threshold, it indicates that the component to be heated 10 has been fully inserted and reached a preset distance from the magnetic field component 200, ensuring the reliability of heating startup; when the rate of change of inductance reaches the second threshold, the rapid insertion action can be quickly identified, avoiding detection delay caused by differences in user operation speed. If both methods are used simultaneously, the accurate judgment of the insertion action can be achieved through a dual detection logic (the absolute value threshold of inductance and the rate of change threshold). The combination of the two can cover different insertion speed scenarios (such as slow insertion or rapid insertion), and can also eliminate false judgments caused by external magnetic field interference (such as only approaching briefly without full insertion), significantly improving the accuracy of detection.

[0080] Further, please refer to Figures 1 to 3 , the aerosol generating device further includes a control component and a heating component. The control component is electrically connected to the detection component and the heating component, and is used to determine that the component to be heated 10 has entered the insertion port according to the judgment.

[0081] After the step of determining that the component to be heated 10 has entered the insertion port, the following steps are further included:

[0082] The detection component generates a first control signal;

[0083] The control component controls the heating component to start according to the first control signal.

[0084] In this embodiment, the aerosol generating device realizes the automatic triggering of the heating function through the linkage between the detection component and the control component. When the component to be heated 10 is inserted and detected and confirmed by the detection component, the control component immediately starts the heating component, shortening the time difference from insertion to aerosol generation and improving the usage efficiency. In addition, this design avoids the situation caused by forgetting to start heating in traditional manual operations, significantly optimizing the user experience. Please refer to Figure 3 , Figure 3 is a flowchart of the insertion detection method when the aerosol generating device uses whether the inductance of the magnetic field component 200 reaches the first threshold as the judgment criterion for the component to be heated 10 inserted into the main body 100. Among them, before detecting whether the insertion port is open, an initialization information step can also be included, which can avoid the data retention generated when starting the aerosol generating device last time from affecting the accuracy of detection.

[0085] Further, please refer to Figures 1 to 3 After controlling the heating component to start, the following steps are further included:

[0086] The detection component detects whether the inductance of the magnetic field component 200 reaches the first threshold. If so, a second control signal is generated;

[0087] The control component controls the heating component to turn off according to the second control signal; and / or,

[0088] The detecting component detects whether the change rate of the inductance of the magnetic field component 200 reaches a second threshold value. If so, a second control signal is generated.

[0089] The control component controls the heating component to turn off according to the second control signal.

[0090] In this embodiment, when the user pulls out the component to be heated 10, the inductance will rapidly decrease due to the magnetic core moving away. At this time, the control component can immediately cut off the heating of the heating component, avoiding energy waste caused by no-load heating and the risk of overheating of components. This active shutdown mechanism not only improves safety but also extends the service life of the aerosol generating device. Similarly, if a dual detection logic (the absolute value of the inductance is restored or the change rate meets the standard) is used to determine whether the component to be heated 10 is pulled out, the accuracy of the aerosol detection device can be improved, and the intelligent shutdown of the heating component can be realized.

[0091] Furthermore, the aerosol generating device further includes a sealing cover 300. The sealing cover 300 is used to seal or open the insertion port. The detecting component is electrically connected to the sealing cover 300 and is used to detect the position of the sealing cover 300 relative to the insertion port and start detecting the inductance of the magnetic field component 200 according to the position of the sealing cover 300 relative to the insertion port.

[0092] Before the step in which the detecting component obtains the inductance of the magnetic field component 200, the following steps are further included:

[0093] The detecting component detects whether the insertion port is in an open state. If so, it starts to obtain the inductance of the magnetic field component 200.

[0094] In this embodiment, the detecting component detecting the magnetic field component 200 will consume energy. If the state of detecting the magnetic field component 200 is continuously maintained, energy loss will be caused. Therefore, in this embodiment, the sealing cover 300 is provided. When the sealing cover 300 is in a closed state, it indicates that the user temporarily does not need to start the aerosol generating device. At this time, the detecting component does not need to detect the inductance of the magnetic field component 200. When the sealing cover 300 is in an open state, it indicates that the user needs to start the aerosol generating device. At this time, the detecting component starts to detect the inductance of the magnetic field component 200. Therefore, the aerosol generating device of this embodiment can effectively reduce energy consumption.

[0095] Obviously, the embodiments described above are only a part of the embodiments of this application, rather than all of them. The preferred embodiments of this application are shown in the accompanying drawings, but they do not limit the patent scope of this application. This application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of this application more thorough and comprehensive. Although this application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments or equivalently replace some of the technical features. Any equivalent structure made by using the content of this application's specification and drawings, directly or indirectly applied in other related technical fields, is similarly within the scope of this application's patent protection.

[0096] Although the embodiments of this application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, combinations, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of this application. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An aerosol generating device, characterized in that: include: Component to be heated; A main body, wherein the main body is provided with an insertion port, and the insertion port is used for inserting the component to be heated; A magnetic field component, the magnetic field component is arranged on a side of the insertion port facing the interior of the main body; A detection component is electrically connected to the magnetic field component and is used to detect the inductance of the magnetic field component.

2. The aerosol generating device according to claim 1, characterized in that: The aerosol generating device further comprises a control element and a heating element. The control element is electrically connected to the detection element and the heating element and is used for controlling the heating element to start or stop according to information from the detection element.

3. The aerosol generating device according to claim 1, characterized in that: The aerosol generating device further comprises a sealing cover, which is used to seal or open the insertion port; The detection component is electrically connected to the sealing cover, and is used to detect the position of the sealing cover relative to the insertion port, and start the inductance detection of the magnetic field component according to the position of the sealing cover relative to the insertion port.

4. The aerosol generating device according to claim 1, characterized in that: The magnetic field component includes an excitation coil; Wherein, the excitation coil is surrounded to form a disc-shaped structure, and the component to be heated moves toward the excitation coil along a first direction, and the first direction is the normal direction of the excitation coil; or, The excitation coil is surrounded to form a hollow columnar structure, and the component to be heated is inserted into the excitation coil.

5. The aerosol generating device according to claim 1, characterized in that: The aerosol generating device includes a PCB board, a magnetic field component is arranged on the PCB board, the magnetic field component is a metal trace, the metal trace is spirally distributed on the PCB board, the component to be heated moves toward the metal trace along a first direction, and the first direction is the normal direction of the PCB board.

6. An insertion detection method, characterized in that: The method is applied to the aerosol generating device according to any one of claims 1 to 5, and the method comprises: The detection component obtains the inductance of the magnetic field component; It is determined whether the component to be heated enters the insertion port according to the inductance.

7. The insertion detection method according to claim 6, characterized in that: The step of judging whether the component to be heated enters the insertion port according to the inductance comprises: Setting a first threshold value, comparing whether the inductance reaches the threshold value, and if so, determining that the component to be heated has entered the insertion port; and / or, A second threshold is set to compare whether the rate of change of the inductance reaches the second threshold. If so, it is determined that the component to be heated has entered the insertion port.

8. The insertion detection method according to claim 7, characterized in that: The aerosol generating device further comprises a control element and a heating element, wherein the control element is electrically connected to the detection element and the heating element, and is used to judge whether the component to be heated has entered the insertion port; After the step of determining that the component to be heated has entered the insertion port, the following steps are also included: The detection element generates a first control signal; The control element controls the heating element to start according to the first control signal.

9. The insertion detection method according to claim 8, characterized in that: After the control of starting the heating element, the following steps are also included: The detection component detects whether the inductance of the magnetic field component reaches a first threshold value, and if so, generates a second control signal; The control element controls the heating element to be turned off according to the second control signal; and / or, The detection component detects whether the rate of change of the inductance of the magnetic field component reaches a second threshold value, and if so, generates a second control signal; The control element controls the heating element to be turned off according to the second control signal.

10. The insertion detection method according to claim 6, characterized in that: The aerosol generating device further comprises a sealing cover, which is used to seal or open the insertion port; the detection element is electrically connected to the sealing cover, and is used to detect the position of the sealing cover relative to the insertion port, and start the inductance detection of the magnetic field element according to the position of the sealing cover relative to the insertion port; Before the step of the detection component obtaining the inductance of the magnetic field component, the following steps are also included: The detection component detects whether the insertion port is in an open state, and if so, starts to obtain the inductance of the magnetic field component.

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