An aerosol-generating device

Abstract

The utility model belongs to aerosol's generation technical field discloses an aerosol generating device. The aerosol generating device includes body, lid, first magnet, second magnet, third magnet and sensor. The body has the receiving cavity of accommodating at least part aerosol generating article, the lid is movably connected in the body, and the first magnet is established in the lid. The second magnet is established in the body, and when the lid switching state, the second magnet is configured to provide the resistance or help of the lid movement through the magnetic force action with the first magnet. The sensor is established in the body, is used for receiving the first magnet magnetic field intensity change and generates sensing signal, to identify the state of the lid, at least one third magnet is established in the body, and the third magnet is configured to mutually couple with the second magnet, and then forms the coupling magnetic field of avoiding the sensor. Through the utility model, can avoid the magnetic field detection of the sensor of non-target magnet interference, promotes the identification accuracy of the lid, guarantees the function reliability and user use experience.

Description

Technical Field

[0001] This utility model relates to the field of aerosol generation technology, and in particular to an aerosol generation device. Background Technology

[0002] In aerosol generating devices, the ease of operation of the dust cover is one of the key factors affecting the user experience.

[0003] Currently, to ensure damping feedback when the dust cover opens and closes, magnetic adsorption or torsion spring mechanical structures are mainly used. With the increasing integration of aerosol generation devices, smart dust cover designs are becoming more common. These primarily use Hall effect sensors to detect the position of magnets to determine the open / closed state of the dust cover. In this scenario, the torsion spring solution is the preferred matching structure for the Hall effect sensing solution due to its ability to provide stable linear damping force. However, when the internal space of the aerosol generation device is limited or there is interference from other mechanical structures, the torsion spring solution is difficult to implement. In such cases, a magnetic repulsion solution is usually used instead, which simulates the damping feel through the repulsive force of two sets of magnets with the same polarity.

[0004] However, in the magnet repulsion scheme, the non-target magnet in the aerosol generation device will interfere with the magnetic field detection of the Hall effect sensor, resulting in incorrect dust cover status recognition or response delay, which seriously affects the reliability of intelligent control functions and user experience. Utility Model Content

[0005] The purpose of this invention is to provide an aerosol generating device that avoids interference from non-target magnets with the magnetic field detection of the sensor, improves the recognition accuracy of the cover, and ensures functional reliability and user experience.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An aerosol generating apparatus for heating an aerosol generating article to generate an aerosol, comprising:

[0008] The body has a receiving cavity that accommodates at least a portion of the aerosol-generated article;

[0009] A cover is movably connected to the body, and the cover has two states: one with the receiving cavity open and the other with the receiving cavity closed.

[0010] A first magnet is disposed on the cover;

[0011] A second magnet is disposed on the body. When the cover is in the switching state, the second magnet is configured to provide resistance or assistance to the movement of the cover through magnetic force with the first magnet.

[0012] A sensor, disposed on the body, is used to receive changes in the magnetic field strength of the first magnet and generate a sensing signal to identify the state of the cover.

[0013] At least one third magnet is disposed on the body, the third magnet being configured to couple with the second magnet to form a coupling magnetic field that avoids the sensor.

[0014] As an alternative to the aerosol generating device, the third magnet is located between the second magnet and the sensor, and close to the second magnet.

[0015] As an alternative to the aerosol generating device, the third magnet includes a plurality of third magnets surrounding the sensor.

[0016] As an alternative to the aerosol generating device, the volume of the third magnet is smaller than that of the second magnet.

[0017] As an alternative to an aerosol generating device, the aerosol generating device includes a controller, and the sensor is electrically connected to the controller via a flexible circuit board.

[0018] As an alternative to the aerosol generating device, the sensible polarity of the sensor is opposite to the polarity of the sensor detection surface corresponding to the third magnet.

[0019] As an alternative to the aerosol generation device, the third magnet is a permanent magnet.

[0020] As an alternative to an aerosol generation device, the sensor includes a Hall effect sensor.

[0021] As an alternative to the aerosol generating device, the first magnet and the second magnet provide resistance or assistance to the movement of the cover through a repulsive force.

[0022] As an alternative to the aerosol generating device, the aerosol generating device further includes:

[0023] A heating component for heating the aerosol-generated product;

[0024] The controller is configured to control the operating state of the heating component based on the sensing signal.

[0025] Beneficial effects:

[0026] In this invention, by placing a third magnet in the structure of a cover with mutually exclusive magnetic opening and closing, the magnetic field of the non-target magnet, i.e., the second magnet, is coupled with the third magnet, attracting and constraining the magnetic field of the second magnet. This ensures that the coupled magnetic field does not interfere with the sensor, enabling the sensor to accurately receive the magnetic field of the target magnet, i.e., the first magnet. This enhances the singleness of sensor identification, improves the accuracy of cover state identification, reduces response delay, and improves the reliability of intelligent control and the user's actual experience. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the aerosol generating device with a closed cover provided in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the aerosol generating device with the cover open, provided in an embodiment of this utility model;

[0029] Figure 3 This is a schematic diagram of the aerosol generating device that hides part of the cover and the outer shell when the cover is closed, according to an embodiment of the present invention.

[0030] Figure 4 This is a schematic diagram of the aerosol generating device that hides part of the cover and the outer shell when the cover is open, according to an embodiment of the present invention.

[0031] Figure 5 This is a cross-sectional view of the aerosol generating apparatus for inserting aerosol generating articles provided in an embodiment of this utility model.

[0032] In the picture:

[0033] 10. Aerosol generating apparatus; 100. Aerosol generated products;

[0034] 1. Body; 11. Receiving cavity; 2. Cover; 3. First magnet; 4. Second magnet; 5. Sensor; 6. Third magnet; 7. Heating assembly; 8. Flexible circuit board. Detailed Implementation

[0035] The present invention will now be described in further detail 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 not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] This embodiment relates to an aerosol generating device, which can be used in conjunction with an aerosol generating product. The aerosol generating product contains an aerosol generating matrix, which can generate aerosols for users to inhale after being heated.

[0040] As used herein, the term "aerosol-generating matrix" refers to a matrix capable of releasing volatile substances to form inhalable aerosols. The aerosol-generating matrix may include tobacco-containing materials containing volatile tobacco flavor compounds that are released from the substrate upon heating.

[0041] The aerosol generating device heats the aerosol-generating product, causing the aerosol generating matrix to produce volatile substances. These volatile substances combine with air flowing into the aerosol generating matrix to form an aerosol. The air flowing into the aerosol generating matrix and the aerosol generated by the aerosol generating matrix can exit from the proximal end of the aerosol generating matrix and be inhaled into the user's mouth.

[0042] Please see the appendix Figure 1 - Appendix Figure 5 The aerosol generating device 10 generates aerosol by heating the aerosol generating article 100. Specifically, it includes a body 1, a cover 2, a first magnet 3, a second magnet 4, a third magnet 6, and a sensor 5. The body 1 has a receiving cavity 11 that accommodates at least a portion of the aerosol generating article 100. The cover 2 is movably connected to the body 1 and has two states: an open receiving cavity 11 and a closed receiving cavity 11. The first magnet 3 is disposed on the cover 2. The second magnet 4 is disposed on the body 1, and when the cover 2 switches states, the second magnet 4 is configured to provide resistance or assistance to the movement of the cover 2 through magnetic force with the first magnet 3. The sensor 5 is disposed on the body 1 and is used to receive changes in the magnetic field strength of the first magnet 3 and generate a sensing signal to identify the state of the cover 2. At least one third magnet 6 is disposed on the body 1 and is configured to couple with the second magnet 4, thereby forming a coupling magnetic field that avoids the sensor 5.

[0043] Specifically, the main body 1 typically includes an outer shell, multiple functional components disposed inside the outer shell, and airflow channels, etc. The outer shell can be used to support and position the multiple internal functional components. The overall appearance of the main body 1 can be reasonably adjusted according to the user's grip comfort and personalized functional expansion. In this embodiment, the main body 1 adopts a long strip structure, and a receiving cavity 11 is formed along the length direction of the main body 1 to accommodate at least part of the structure of the aerosol generating product 100. The aerosol generating product 100 adopts a cylindrical rod structure, so the shape of the receiving cavity 11 is a cylindrical groove structure, extending from one side of the main body 1 into the interior.

[0044] The cover 2 is movably connected to the body 1. Specifically, the cover 2 can slide back and forth relative to the body 1 to open or close the receiving cavity 11. The cover 2 can close the receiving cavity 11 when the aerosol generating device 10 is not in use, thereby preventing external moisture and dust from entering the body 1 and affecting the service life of the aerosol generating device 10.

[0045] Furthermore, the first magnet 3 is disposed on the cover 2, while the second magnet 4 is disposed on the body 1. When the cover 2 switches states, the second magnet 4 is configured to provide resistance or assistance to the movement of the cover 2 through magnetic force with the first magnet 3. In this embodiment, the magnetic force can provide the user with a damping sensation of sliding the cover 2, allowing the user to feel the sliding process of the cover 2, assisting the user in perceiving the sliding position of the cover 2, and improving the user experience. Specifically, when the cover 2 is in the closed receiving cavity 11 state, in the initial stage of the user sliding the cover 2 with their finger, there is a repulsive force between the first magnet 3 and the second magnet 4. The direction of this repulsive force (or a component of the repulsive force) is opposite to the direction of movement of the cover 2, and the repulsive force gradually increases as the first magnet 3 and the second magnet 4 get closer. This repulsive force manifests as a certain resistance to the user's actual touch, and the resistance gradually increases. When the cover 2 slides to a certain position, the distance between the first magnet 3 and the second magnet 4 is the smallest. At this time, when the user continues to slide the cover 2, the distance between the first magnet 3 and the second magnet 4 begins to gradually increase, and the repulsive force between the first magnet 3 and the second magnet 4 gradually decreases. At this time, the direction of the repulsive force (or part of the repulsive force) is the same as the direction of movement of the cover 2. This repulsive force provides a certain amount of assistance to the user's hand and the assistance gradually decreases. When the cover 2 moves to a certain position, the cover 2 is in the state of opening the receiving cavity 11.

[0046] Furthermore, sensor 5 can be a Hall effect sensor and is located within the body 1. It receives changes in the magnetic field strength of the first magnet 3 and generates a sensing signal to identify the state of the cover 2. The sensing signal is typically a voltage signal related to the change in magnetic field strength. A third magnet 6 is also provided on the body 1. The number of third magnets 6 can be selectively chosen so that the magnetic fields of the third magnet 6 are coupled with those of the second magnet 4. The magnetic field formed after the coupling does not pass through sensor 5.

[0047] In the structure of the cover 2 with mutual repulsion between magnets, the third magnet 6 attracts and constrains the magnetic field of the second magnet 4, so that the magnetic field of the second magnet 4 avoids the sensor 5. Thus, the magnetic field of the second magnet 4 is isolated, allowing the sensor 5 to accurately receive the magnetic field of the target magnet, namely the first magnet 3. The linearity of the Hall voltage output by the sensor 5 is improved, the temperature drift and zero-point error are reduced, and the singleness of recognition is enhanced. This further improves the accuracy of the state recognition of the cover 2, reduces the response delay, and enhances the reliability of intelligent control and the user's actual experience.

[0048] Optionally, the third magnet 6 is a permanent magnet.

[0049] In this embodiment, the permanent magnet (such as neodymium iron boron) possesses high coercivity (resistance to demagnetization) and high remanence (the magnetic induction intensity retained after the external magnetic field is removed), enabling it to maintain a stable magnetic field for a long time. The permanent magnet can also adapt to the dense arrangement of small-volume magnets, making it more adaptable.

[0050] Optionally, the third magnet 6 is located between the second magnet 4 and the sensor 5, and is close to the second magnet 4.

[0051] In this embodiment, by placing the third magnet 6 between the second magnet 4 and the sensor 5, the third magnet 6 forms a high magnetic field gradient isolation region between the sensor 5 and the second magnet 4, forcing the magnetic field strength of the second magnet 4 to decrease sharply in this region. Simultaneously, the third magnet 6 is further moved closer to the second magnet 4 to enhance coupling, improve the adsorption and convergence of interfering magnetic fields, and prevent stray diffusion of magnetic field lines from interfering magnetic fields.

[0052] Optionally, multiple third magnets 6 surround the sensor 5.

[0053] In this embodiment, a single third magnet 6 can only shield interference in a specific direction. Multiple third magnets 6 arranged in a ring around the sensor 5 can shield interfering magnetic fields radiating to the sensor 5 from multiple directions. Furthermore, a ring array of third magnets 6 achieves 360° omnidirectional shielding. By optimizing the number of third magnets 6 and their relative positions to the second magnet 4, the resulting ring magnetic screen completely shields the magnetic field of the second magnet 4 in the direction of the sensor 5, improving the detection accuracy of the sensor 5.

[0054] Furthermore, the volume of the third magnet 6 is smaller than the volume of the second magnet 4.

[0055] Specifically, the small-volume third magnet 6 can effectively reduce space occupation. For a single, small-volume third magnet 6, the shielding effect needs to be improved by optimizing the relative position between the third magnet 6 and the second magnet 4. For multiple third magnets 6, since the small-volume third magnet 6 has a higher surface area ratio per unit volume, its magnetic field control capability per unit volume is stronger. By absorbing interference magnetic fields at multiple points, local saturation can be avoided. The small-volume third magnet 6, through optimized arrangement, can form a smooth magnetic field transition zone, reducing local magnetic field distortion. In addition, the small-volume third magnet 6 has higher installation adaptability, can be embedded in narrow spaces, and has almost no impact on the original structure.

[0056] Optionally, the sensible polarity of sensor 5 is opposite to the polarity of the detection surface of sensor 5 corresponding to the third magnet 6.

[0057] In this embodiment, sensor 5 employs a unipolar Hall effect sensor, which can only sense either the N or S pole of a magnet. If the polarity of the first magnet 3 sensed by sensor 5 is S, the polarity of the third magnet 6 corresponding to the detection surface of sensor 5 can be adjusted to N, thus reducing the influence of the S pole magnetic field of the third magnet 6 on the detection result of sensor 5. Similarly, if the polarity of the first magnet 3 sensed by sensor 5 is N, the polarity of the third magnet 6 corresponding to the detection surface of sensor 5 can be adjusted to S, thereby reducing the influence of the N pole magnetic field of the third magnet 6 on the detection result of sensor 5.

[0058] Optionally, the aerosol generating device 10 also includes a controller, and the sensor 5 is electrically connected to the controller via a flexible circuit board 8.

[0059] Specifically, the controller is the core component that realizes more than 10 control functions of the aerosol generating device. In this embodiment, when the cover 2 is turned by finger, during the process of the cover 2 switching from the state of closing the receiving cavity 11 to the state of opening the receiving cavity 11, the position of the first magnet 3 relative to the sensor 5 changes. The sensor 5 detects the change in the magnetic field of the first magnet 3 and further converts the magnetic signal into an electrical signal, which is transmitted to the controller. The controller can trigger the start-up state or heating state of the aerosol generating device by recognizing and judging the electrical signal.

[0060] Furthermore, the sensor 5 is positioned near the cover 2, at a certain distance from the controller. Since the flexible circuit board 8 is only 0.1mm to 1mm thick and 60%–70% lighter than a rigid circuit board (PCB), and possesses high flexibility, it can be freely bent, folded, and rolled, without damaging the wires even after multiple dynamic bends. Connecting the sensor 5 and the controller via the flexible circuit board 8 fully utilizes the internal structural space of the main body 1, saving space and thus reducing the volume of the aerosol generating device 10.

[0061] Please see the appendix Figure 3 - Appendix Figure 5 Furthermore, the aerosol generating apparatus 10 also includes a heating component 7, which is used to heat the aerosol generating product 100; the controller can control the working state of the heating component 7 according to the sensing signal.

[0062] Specifically, the heating component 7 typically heats the aerosol-generated product 100 via heat conduction. Through a signal connection between the controller and the heating component 7, dynamic temperature regulation can be achieved. This means that based on a preset program or real-time data (such as gas concentration and suction intensity), the controller can automatically select and switch temperature curves for the heating component 7 to ensure that the aerosol-generated product 100 is heated within the optimal temperature range. Furthermore, segmented heating can be implemented. For example, after detecting user suction, the controller can control the heating component 7 to preheat according to a fixed temperature curve, and then switch the heating component 7 to a customized temperature curve (such as increasing the temperature during strong suction) based on the suction intensity.

[0063] Since the specific structure and basic control principle of the controller are existing technologies, they can be adapted by referring to the existing aerosol generating device 10, and will not be described in detail here.

[0064] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An aerosol generating apparatus for heating an aerosol generating product to produce an aerosol, characterized in that, include: The body has a receiving cavity that accommodates at least a portion of the aerosol-generated article; A cover is movably connected to the body, and the cover has two states: one with the receiving cavity open and the other with the receiving cavity closed. A first magnet is disposed on the cover; A second magnet is disposed on the body. When the cover is in the switching state, the second magnet is configured to provide resistance or assistance to the movement of the cover through magnetic force with the first magnet. A sensor, disposed on the body, is used to receive changes in the magnetic field strength of the first magnet and generate a sensing signal to identify the state of the cover. At least one third magnet is disposed on the body, the third magnet being configured to couple with the second magnet to form a coupling magnetic field that avoids the sensor.

2. The aerosol generating apparatus according to claim 1, characterized in that, The third magnet is located between the second magnet and the sensor, and is close to the second magnet.

3. The aerosol generating apparatus according to claim 1, characterized in that, The third magnet includes multiple third magnets, which surround the sensor.

4. The aerosol generating apparatus according to claim 1, characterized in that, The volume of the third magnet is smaller than that of the second magnet.

5. The aerosol generating apparatus according to claim 1, characterized in that, The aerosol generating device includes a controller, and the sensor is electrically connected to the controller via a flexible circuit board.

6. The aerosol generating apparatus according to any one of claims 1-5, characterized in that, The sensible polarity of the sensor is opposite to the polarity of the third magnet corresponding to the sensor's detection surface.

7. The aerosol generating apparatus according to any one of claims 1-5, characterized in that, The third magnet is a permanent magnet.

8. The aerosol generating apparatus according to any one of claims 1-5, characterized in that, The sensor includes a Hall effect sensor.

9. The aerosol generating apparatus according to any one of claims 1-5, characterized in that, The first magnet and the second magnet provide resistance or assistance to the movement of the cover through a repulsive force.

10. The aerosol generating apparatus according to any one of claims 1-4, characterized in that, The aerosol generating device further includes: A heating component for heating the aerosol-generated product; The controller is configured to control the operating state of the heating component based on the sensing signal.

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