Aerosol-generating device

Abstract

The present application relates to an aerosol generating device, comprising: a housing, an accommodation cavity is arranged inside the housing, and the housing comprises an end cover, the end cover is provided with an inlet for at least partial entry of an aerosol generating article into the accommodation cavity; a movable cover configured to be movable relative to the inlet; a drive assembly for driving the movable cover to move; a detection sensor for detecting whether the aerosol generating article exists in the accommodation cavity; and a controller configured to control the drive assembly to drive the movable cover to close the inlet when the aerosol generating article does not exist in the accommodation cavity.

Description

[0001] This application is a divisional application of Chinese utility model patent application No. 202422502874.9, filed on October 15, 2024, entitled "Aerosol Generating Apparatus". Technical Field

[0002] This application relates to the field of aerosol generation technology, and in particular to an aerosol generation device. Background Technology

[0003] An aerosol generating device is a means of producing aerosols for a user to inhale when heated without combustion. This device typically includes a receiving cavity for accommodating at least a portion of the aerosol generating article and an inlet for loading the aerosol generating article into the receiving cavity. One existing device also includes a shielding cover and an electrically driven mechanism. The electrically driven mechanism includes a motor and a screw rotatably connected to the motor. The shielding cover has a nut structure that is fitted onto and threaded onto the screw, so that when the motor drives the screw to rotate, the shielding cover can move along it, thereby enabling the electrically driven mechanism to close the inlet when the receiving cavity is empty.

[0004] However, the electric drive mechanism in this device requires a lot of lateral space, and the closing cover requires sufficient lateral travel to open or close the inlet, resulting in the device being too wide and inconvenient for users to carry and grip. Utility Model Content

[0005] The purpose of this application is to provide an aerosol generating apparatus that can automatically close the inlet after the aerosol-generated article is removed from the receiving cavity or after the inlet is accidentally opened.

[0006] At least one embodiment of this application provides an aerosol generating apparatus, the aerosol generating apparatus comprising:

[0007] A housing having an internal cavity, and the housing including an end cap having an inlet for at least a portion of an aerosol-generated article to enter and remain in the cavity;

[0008] The movable cover is configured to move relative to the inlet;

[0009] A drive component for driving the movable cover to move;

[0010] A detection sensor and a controller are provided, wherein the detection sensor is used to detect whether there is an aerosol-generating article in the containment cavity, and the controller is configured to control the drive assembly to drive the movable cover to close the inlet when there is no aerosol-generating article in the containment cavity.

[0011] As an example, the controller is configured to control the drive assembly to close the inlet when the duration of no aerosol-generated article in the containment cavity reaches a preset duration.

[0012] As an example, the preset duration is 2S-10S.

[0013] As an example, the aerosol generating apparatus further includes a heating component and a power source electrically connected to the heating component, the heating component being used to heat the aerosol generating article to generate an aerosol;

[0014] The controller is configured to control the power supply to provide electrical power to the heating assembly only when the detection sensor detects the presence of aerosol-generating articles in the containment cavity; or

[0015] The controller is configured to stop supplying power to the heating assembly when the detection sensor detects that no aerosol-generated article is formed in the containment cavity.

[0016] As an example, the aerosol generating device also includes an interactive element, and the controller is configured to control the drive assembly to open the inlet based on instructions issued by the interactive element.

[0017] As an example, the interactive element includes a button, a slide switch, a touchscreen, or a remote control.

[0018] As an example, the end cap includes an inner cap and an outer cap, with the movable cap movably disposed between the inner cap and the outer cap.

[0019] As an example, the inner cover is provided with a guide rail, and the movable cover is configured to slide along the guide rail to close or open the inlet.

[0020] As an example, the drive assembly includes a DC motor and a transmission mechanism linked to the movable cover. The transmission mechanism is configured to drive the movable cover under the drive of the DC motor to close or open the inlet; wherein the transmission stroke of the drive assembly to the movable cover is less than the actual movement stroke of the movable cover.

[0021] As an example, the drive assembly includes a longitudinally arranged drive mechanism and a transmission mechanism, the drive mechanism being configured to drive the movable cover to move laterally via the transmission mechanism to close or open the inlet.

[0022] The aerosol generating apparatus provided in some of the above embodiments includes a controller, a movable cover movable relative to the inlet, a drive assembly for driving the movable cover, and a detection sensor for detecting the presence of an aerosol-generating article in the receiving cavity. The controller is configured to control the drive assembly to drive the movable cover to close the inlet when there is no aerosol-generating article in the receiving cavity. Thus, after the aerosol-generating article is removed from the receiving cavity or after the inlet is accidentally opened, the movable cover can automatically close the inlet to prevent the inlet from remaining open for an extended period when there is no aerosol-generating article in the receiving cavity. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1 This is a schematic diagram showing the movable cover in the second position in some embodiments of the aerosol generating apparatus provided in this application;

[0025] Figure 2 This is a schematic diagram of the movable cover being in the first position in some embodiments of the aerosol generating apparatus provided in this application;

[0026] Figure 3 This is a schematic diagram showing the positional relationship between the movable cover and the first stop portion when the movable cover is in the first position according to some embodiments of this application;

[0027] Figure 4 This is a schematic diagram showing the positional relationship between the movable cover and the second stop when the movable cover is in the second position according to some embodiments of this application;

[0028] Figure 5 This is a schematic diagram of the transmission mechanism and the movable cover provided in some embodiments of this application;

[0029] Figure 6 This is a cross-sectional view of an aerosol generating apparatus provided in some embodiments of this application;

[0030] Figure 7 This is an exploded schematic diagram of an aerosol generating apparatus provided in some embodiments of this application;

[0031] Figure 8 This is an exploded schematic diagram of at least some components of the aerosol generating apparatus provided in some embodiments of this application;

[0032] In the picture:

[0033] 100. Aerosol generating device; 101. Detection sensor; 200. Aerosol generating product; 201. Aerosol generating matrix section;

[0034] 1. Shell; 11. Receiving cavity; 12. End cap; 121. Inlet; 122. Guide rail; 123. First stop; 124. Second stop; 125. Inner cover; 1251. Through hole; 126. Outer cover; 13. Annular body;

[0035] 2. Movable cover; 21. Straight toothed rack;

[0036] 3. Drive mechanism; 31. Rotating shaft;

[0037] 4. Transmission mechanism;

[0038] 5. Power supply;

[0039] 61. First magnetic component; 62. Second magnetic component; 63. Third magnetic component;

[0040] 7. Heating assembly; 71. Tubular heating element; 72. First tubular body; 8. Circuit board; 9. Support. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0042] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0043] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be intervening elements. When an element is referred to as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0045] Please refer to Figure 1 and Figure 2 Some embodiments of this application provide an aerosol generating apparatus 100, which can be used in conjunction with an aerosol generating article 200 to generate aerosols.

[0046] The aerosol generating article 200 may include a nozzle, a connecting section, and an aerosol generating matrix section capable of generating aerosols. The connecting section is located between the nozzle and the aerosol generating matrix section and is used to guide the aerosol to the nozzle. The nozzle is for use by a user's mouth, and the user can suck on the nozzle to draw in the aerosol.

[0047] The aerosol generating matrix section 201 of the aerosol generating article 200 may have an aerosol generating matrix.

[0048] 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. Specifically, the aerosol-generating matrix may be a tobacco-containing aerosol-generating matrix, preferably a solid tobacco-containing aerosol-generating matrix. Alternatively, the aerosol-generating matrix may include non-tobacco materials. The aerosol-generating matrix may also include a liquid matrix stored within an aerosol matrix segment. Suitable liquid matrices may include glycerol and propylene glycol. Suitable liquid matrices may also include nicotine, sweeteners, or cooling agents.

[0049] If desired, the aerosol generating matrix may contain additional tobacco or non-tobacco volatile flavor compounds released when the aerosol generating matrix is ​​heated. The aerosol generating matrix may also contain microcapsules, such as those containing additional tobacco or non-tobacco volatile flavor compounds, and these microcapsules may melt during heating of the solid aerosol generating matrix.

[0050] The aerosol generating article 200 can be generally a rod-shaped structure extending longitudinally. The nozzle can be disposed adjacent to the proximal end of the aerosol generating article 200. The aerosol generating matrix section 201 can be disposed adjacent to the distal end of the aerosol generating article 200.

[0051] It should be noted that the aerosol generating article 200 including the nozzle and the connecting section is optional, not mandatory. In some embodiments, the aerosol generating article 200 may only include an aerosol generating matrix section 201 capable of generating aerosols. In this embodiment, the aerosol generating device 100 may include a nozzle assembly for a user to hold.

[0052] Please refer to Figure 2 and Figure 7 The aerosol generating apparatus 100 includes a housing 1. A receiving cavity 11 is provided inside the housing 1 for receiving at least a portion of the aerosol generating article 200. In one example, when the aerosol generating article 200 is combined with the aerosol generating apparatus 100, the entire aerosol generating matrix is ​​located within the receiving cavity.

[0053] Please refer to Figures 2-4 The housing 1 includes an end cap 12, which has an inlet 121 for retaining at least a partial entry of the aerosol-generating article 200 into the receiving cavity 11. In some embodiments, reference may be made to... Figure 2 The cavity 11 and the inlet 121 are interconnected and are arranged longitudinally, so that at least a portion of the aerosol-generated article 200 can pass through the inlet 121 longitudinally and enter the cavity 11 for retention.

[0054] The housing 1 may include an annular body 13. An end cap 12 may be integrally formed with the annular body 13. Preferably, the end cap 12 is mounted on the annular body 13. The end cap 12 may be disposed adjacent to the proximal end of the annular body 13.

[0055] Please refer to Figure 1 and Figure 2The aerosol generating apparatus 100 includes a movable cover 2. The movable cover 2 is configured to move relative to the inlet 121, allowing the cover 2 to close or open the inlet 121. When the movable cover 2 closes the inlet 121, the aerosol-generated article 200 cannot enter the receiving cavity 11 from the outside. The movable cover 2 also prevents external dust or foreign matter from entering the receiving cavity 11. When the movable cover 2 is removed from closing the inlet 121, the inlet 121 opens, allowing the aerosol-generated article 200 to enter the receiving cavity 11 from the outside.

[0056] In some embodiments, the movable cover 2 is configured to be able to move laterally and to close or open the inlet 121 by moving laterally.

[0057] Preferably, the direction of movement of the movable cover 2 is perpendicular to the arrangement direction of the receiving cavity 11 and the inlet 121. In such cases... Figure 1 and Figure 2 In the embodiment shown, the movable cover 2 is configured to move laterally, and the receiving cavity 11 and the inlet 121 are arranged longitudinally.

[0058] Please refer to Figure 5 and Figure 6 The aerosol generating device 100 includes a drive assembly. The drive assembly drives the movable cover 2 to move, enabling the movable cover 2 to close or open the inlet 121. Specifically, the drive assembly includes a drive mechanism 3 and a transmission mechanism 4, wherein the drive mechanism 3 is configured to drive the movable cover 2 to move via the transmission mechanism 4, or the transmission mechanism 4 is configured to transmit the movable cover 2 under the drive of the drive mechanism 3, thereby enabling the movable cover 2 to close or open the inlet 121.

[0059] In some embodiments, the drive mechanism 3 can drive the transmission mechanism 4 to rotate. When the transmission mechanism 4 rotates, it can drive the movable cover 2 to move laterally, or it can transport the movable cover 2 laterally. When the transmission mechanism 4 rotates, it can drive the movable cover 2 to move linearly or in an arc.

[0060] The drive mechanism 3 may include a manual drive mechanism for user operation. Preferably, the drive mechanism 3 includes an electric drive mechanism controlled by a switching element or a controller. The electric drive mechanism may include a motor. The motor may include a DC motor, a stepper motor, or a servo motor.

[0061] In some embodiments, the transmission mechanism 4 is screwed into the movable cover 2.

[0062] Example 1: Not shown, the transmission mechanism 4 includes a first screw with external threads. One end of the first screw is connected to a motor, allowing it to rotate under the motor's drive. The movable cover 2 has a through hole with internal threads. The first screw passes through this through hole, and the internal threads in the through hole engage with the external threads on the surface of the first screw, enabling the transmission mechanism 4 and the movable cover 2 to engage in a helical transmission. Therefore, when the first screw rotates, the movable cover 2 can move linearly along the first screw. Furthermore, the direction of the linear movement of the movable cover 2 along the first screw in the transverse direction varies depending on the rotation direction of the first screw.

[0063] Example 2: Not shown, the end cover 12 is provided with a linearly extending guide rail 122. The movable cover 2 is slidably connected to the guide rail 122, so that the movable cover 2 can move linearly along the guide rail 122. The transmission mechanism 4 includes a gear connected to a motor, so that the gear can rotate under the drive of the motor. The movable cover 2 includes a second screw with external threads. The gear and the external threads on the surface of the second screw engage with each other, so that the transmission mechanism 4 and the movable cover 2 are in helical transmission engagement. Thus, when the gear rotates, the second screw can drive the movable cover 2 to move linearly in the transverse direction along the guide rail 122 under the drive of the gear.

[0064] In some embodiments, the transmission mechanism 4 engages with the movable cover 2 in a transmission cooperation.

[0065] Example 3: You can refer to Figures 5-7 The end cover 12 is provided with a linearly extending guide rail 122, and the movable cover 2 is slidably connected to the guide rail 122, so that the movable cover 2 can move linearly along the guide rail 122. The transmission mechanism 4 includes a gear, which is connected to a motor, so that the gear can rotate under the drive of the motor. The movable cover 2 is provided with a linear rack 21, and the gear meshes with the linear rack 21, so that the transmission mechanism 4 meshes and transmits power to the movable cover 2. Thus, when the gear rotates, the linear rack 21 can drive the movable cover 2 to move linearly in the transverse direction along the guide rail 122 under the drive of the gear.

[0066] Example 4: Not shown, the end cover 12 is provided with an arc-shaped guide rail, and the movable cover 2 is slidably connected to the arc-shaped guide rail, so that the movable cover 2 can move in an arc along the guide rail. The transmission mechanism 4 includes a first gear, which is connected to a motor, so that the first gear can rotate under the drive of the motor. The movable cover 2 is provided with an arc-shaped rack or a second gear, and the first gear meshes with the arc-shaped rack or the second gear, so that the transmission mechanism 4 meshes with the movable cover 2 for transmission. Thus, when the first gear rotates, the arc-shaped rack or the second gear can drive the movable cover 2 to move in an arc along the arc-shaped guide rail in a transverse direction under the drive of the first gear.

[0067] In some embodiments, the transmission mechanism 4 is engaged with the crank connecting rod of the movable cover 2.

[0068] Example 5: Not shown, the end cover 12 is provided with a linearly extending guide rail 122. The movable cover 2 is slidably connected to the guide rail 122, so that the movable cover 2 can move linearly along the guide rail 122. The transmission mechanism 4 includes a cam or an eccentric wheel, which is connected to a motor, so that the cam or eccentric wheel can rotate under the drive of the motor. The drive assembly also includes a first connecting rod and a second connecting rod. The first connecting rod is hinged to the cam or eccentric wheel, and the second connecting rod is hinged to the movable cover 2. The first connecting rod and the second connecting rod are hinged to each other, so that the transmission mechanism 4 and the crank connecting rod of the movable cover 2 are in transmission engagement. Thus, when the cam or eccentric wheel rotates, the connection angle between the first connecting rod and the second connecting rod changes, and the first connecting rod and the second connecting rod drive the movable cover 2 to move linearly in the lateral direction along the guide rail 122.

[0069] In some embodiments, the end cap 12 is provided with a guide rail 122 for guiding the movement trajectory of the movable cover 2. The movable cover 2 can close or open the inlet 121 by moving along the guide rail. Preferably, the guide rail 122 extends in a straight line, but is not limited thereto.

[0070] In some embodiments, reference may be made to Figure 5 , Figure 6 and Figure 8 The drive mechanism 3 is arranged longitudinally, and the movable cover 2 moves laterally under the drive of the drive assembly. Thus, the orientation of the drive mechanism 3 and the direction of movement of the movable cover 2 intersect spatially. This allows the drive mechanism 3 to fully utilize the internal space of the aerosol generating device 100, is rationally arranged within the aerosol generating device 100, and effectively reduces the lateral space occupied by the drive mechanism 3. This effectively reduces the lateral size of the aerosol generating device 100, making it easier for users to grip and carry the aerosol generating device 100 laterally.

[0071] Assuming that in Example 1 above, the electric drive mechanism and transmission mechanism are arranged in the same straight line as the direction of movement of the movable cover. Further assuming that the electric drive mechanism and transmission mechanism are arranged laterally. Since the length of the motor body is usually greater than its diameter or width, arranging the motor horizontally (i.e., laterally) would increase the width of the aerosol generating device. Furthermore, arranging the laterally arranged motor and transmission mechanism laterally would further increase the width of the aerosol generating device, making it inconvenient for users to grip and carry.

[0072] Therefore, in some embodiments of this application, it is preferred that the arrangement direction of the electric drive mechanism 3 and the transmission mechanism 4 is substantially perpendicular to the movement direction of the movable cover 2; and / or, it is preferred that the arrangement direction of the drive mechanism 3 is substantially perpendicular to the movement direction of the movable cover 2. For example, the drive mechanism 3 and the transmission mechanism 4 are arranged longitudinally, while the movable cover 2 moves laterally under the drive of the drive assembly. For example, the drive mechanism 3 is arranged longitudinally, while the movable cover 2 moves laterally under the drive of the drive assembly. For example, refer to... Figure 5 and Figure 6 The drive mechanism 3 and the transmission mechanism 4 are arranged longitudinally, and the drive mechanism 3 is arranged longitudinally, while the movable cover 2 moves laterally under the drive of the drive assembly.

[0073] In some embodiments, the electric drive mechanism 3 may include a DC motor, which drives the transmission mechanism 4 to rotate. The shaft 31 of the DC motor can be connected to the transmission mechanism 4, so that the transmission mechanism 4 can rotate following the shaft 31 of the DC motor. DC motors are cheaper than stepper motors and servo motors, so using DC motors can reduce the cost of the aerosol generation device 100.

[0074] The end cap 12 has a first position and a second position.

[0075] The first position is the endpoint of the transmission mechanism 4 to the movable cover 2, which is reflected in:

[0076] (1) After the movable cover 2 is transferred from the second position to the first position, if the movable cover 2 can continue to move forward along the original direction of motion, the transmission engagement between the transmission mechanism 4 and the movable cover 2 will cease after the movable cover 2 continues to move forward along the original direction of motion to a point deviating from the first position. In Example 3, the cessation of the transmission engagement between the transmission mechanism 4 and the movable cover 2 can be manifested as the gear disengaging from the linear rack 21. When the movable cover 2 returns to the first position, the transmission engagement between the transmission mechanism 4 and the movable cover 2 can be re-established. At this time, the shaft 31 of the DC motor may have stopped rotating, or it may continue to rotate along the original direction of rotation, or it may rotate in the opposite direction to the original direction of rotation. In Example 3, the re-establishment of the transmission engagement between the transmission mechanism 4 and the movable cover 2 can be manifested as the gear meshing with the linear rack 21 again.

[0077] Alternatively (2) when the movable cover 2 is transferred from the second position to the first position, if the drive component stops the transmission of the movable cover 2, the movable cover 2 can stop at the first position at the same time, and the transmission mechanism 4 and the movable cover 2 maintain a transmission engagement. After the drive component generates a reverse transmission to the movable cover 2, the movable cover 2 can move from the first position to the direction of the second position.

[0078] Similarly, the second position is another transmission endpoint of the transmission mechanism 4 to the movable cover 2.

[0079] However, the positioning accuracy of DC motors is relatively low.

[0080] Therefore, the transmission stroke L1 of the drive assembly to the movable cover 2 can be made smaller than the actual movement stroke L2 of the movable cover 2. Thus, after the transmission engagement between the transmission mechanism 4 and the movable cover 2 is terminated, the movable cover 2 can continue to move forward in the original direction of movement without the force provided by the transmission mechanism 4, so as to ensure that the movable cover 2 can reach the first position or the second position.

[0081] For example, when the movable cover 2 is transferred from the second position to the first position, the shaft 31 of the DC motor can continue to rotate in the original direction of rotation. Therefore, when the movable cover 2 moves to the first position along the transmission stroke L1 of the drive assembly, the transmission engagement between the transmission mechanism 4 and the movable cover 2 stops, and then the movable cover 2 continues to move forward from the first position in the original direction of movement without the force provided by the transmission mechanism 4, thereby passing the first position.

[0082] And / or, for example, when the movable cover 2 is transferred from the first position to the second position, the shaft of the DC motor can continue to rotate in the original direction of rotation. Therefore, when the movable cover 2 moves to the second position along the transmission stroke L1 of the drive assembly, the transmission engagement between the transmission mechanism 4 and the movable cover 2 is terminated, and then the movable cover 2 continues to move forward from the second position in the original direction of movement without the force provided by the transmission mechanism, thereby passing the second position.

[0083] By appropriately increasing the power supply duration of the power supply 5 to the DC motor, the rotating shaft 31 of the DC motor can continue to rotate in the original direction of rotation when the movable cover 2 is transferred from the second position to the first position and / or when the movable cover 2 is transferred from the first position to the second position.

[0084] The deceleration time of the DC motor shaft 31 after the current is lost can be extended by appropriately increasing the maximum speed of the DC motor shaft 31. This allows the DC motor shaft 31 to continue rotating in the original direction when the movable cover 2 is transferred from the second position to the first position and / or when the movable cover 2 is transferred from the first position to the second position.

[0085] Alternatively, the DC motor shaft 31 can be made to continue rotating in the original direction of rotation when the movable cover 2 is moved from the second position to the first position and / or when the movable cover 2 is moved from the first position to the second position.

[0086] However, without a stop, if the DC motor shaft continues to rotate after the movable cover reaches the first or second position, the movable cover will continue to move forward in the original direction of motion. If a stop is provided corresponding to the first or second position to stop the movable cover from continuing to move forward in the original direction of motion after reaching the first or second position, the rotation of the DC motor shaft will be forcibly stopped, which will increase the damage to the motor, transmission mechanism, and movable cover.

[0087] Therefore, in some embodiments, reference can be made to Figure 3 and Figure 4 The end cover 12 has a first stop 123, which is located near the first position. Therefore, there is a first gap A1 between the first stop 123 and the first position. When the movable cover 2 is in the first position, if the shaft 31 of the DC motor continues to rotate in the original rotation direction, the movable cover 2 can continue to move toward the first stop 123 based on inertia after the transmission cooperation with the transmission mechanism 4 stops.

[0088] After the movable cover 2 is transferred from the second position to the first position, it can reciprocate at least once between the first position and the first stop 123. In other words, after the movable cover 2 deviates from the first position due to inertia, it can return to the first position under the action of other forces, thus re-establishing a transmission engagement with the transmission mechanism 4. After the movable cover 2 returns to the first position, if the shaft of the DC motor has stopped rotating, the movable cover 2 can remain in the first position to wait for the next drive of the drive assembly. If the shaft of the DC motor 31 continues to rotate in the original direction after the movable cover 2 returns to the first position, the movable cover 2 can deviate from the first position again and move towards the first stop 123. If the shaft of the DC motor 31 rotates in the opposite direction to the original direction after the movable cover 2 returns to the first position, the movable cover 2 can be transferred by the transmission mechanism 4 to the direction of the second position based on the transmission engagement with the transmission mechanism 4.

[0089] The distance D1 between the first stop part 123 and the first position can satisfy: 0.1mm≤D1≤2mm.

[0090] When the movable cover 2 returns to the first position, the DC motor can continue to rotate in the original direction of rotation, so that the movable cover 2 can make multiple back-and-forth movements between the first position and the first stop 123, thereby dynamically maintaining the movable cover 2 between the first position and the first stop 123.

[0091] In some embodiments, after at least one reciprocating motion occurs between the first position and the first stop 123, the shaft 31 of the DC motor stops rotating, and the movable cover 2 is configured to be in the first position when the shaft 31 of the DC motor stops rotating, so that the movable cover 2 can engage with the transmission mechanism 4 after stopping the motion, and also helps to reduce the power consumption of the aerosol generating device 100.

[0092] For example, you can refer to Figure 2 The aerosol generating device 100 also includes a first magnetic element 61 and a second magnetic element 62. The first magnetic element 61 is held on the movable cover 2, and the second magnetic element 62 is disposed corresponding to the first position. The first magnetic element 61 and the second magnetic element 62 can magnetically attract each other when the movable cover 2 is located between the first position and the first stop 123. Thus, when the movable cover 2 deviates from the first position and moves toward the first stop 123, the magnetic attraction between the first magnetic element 61 and the second magnetic element 62 forms a resistance to the movement of the movable cover 2, which helps to decelerate the movable cover 2. Furthermore, the magnetic attraction between the first magnetic element 61 and the second magnetic element 62 helps to automatically return the movable cover 2 from the first stop 123 to the first position, and helps to keep the movable cover 2 in the first position when the shaft 31 of the DC motor stops rotating.

[0093] Alternatively, for example (not shown), the aerosol generating device further includes a first magnetic element and a second magnetic element. The first magnetic element is held on the movable cover, and the second magnetic element is disposed corresponding to the first stop. The first and second magnetic elements repel each other when the movable cover is located between the first position and the first stop. Thus, when the movable cover deviates from the first position and moves towards the first stop, the magnetic repulsion between the first and second magnetic elements forms a resistance to the movement of the movable cover, which helps to decelerate the movable cover. Furthermore, the magnetic repulsion between the first and second magnetic elements helps to automatically return the movable cover from the first stop to the first position and helps to keep the movable cover in the first position when the shaft of the DC motor stops rotating.

[0094] Alternatively, for example (not shown), at least one of the movable cover and the first stop includes an elastic element, or an elastic element is provided between the movable cover and the first stop. When the movable cover deviates from the first position and moves toward the first stop, the elastic force provided by the elastic element can resist the movement of the movable cover, causing the movable cover to decelerate, and the elastic force provided by the elastic element can help the movable cover automatically return from the first stop to the first position, and help keep the movable cover in the first position when the shaft of the DC motor stops rotating.

[0095] In some embodiments, reference may be made to Figure 3 and Figure 4The end cover 12 has a second stop 124, which is located near the second position. Therefore, there is a second interval A2 between the second stop 124 and the second position. When the movable cover 2 is in the second position, if the shaft 31 of the DC motor continues to rotate in the original rotation direction, the movable cover 2 can continue to move toward the second stop 124 based on inertia after the transmission cooperation with the transmission mechanism 4 stops.

[0096] After the movable cover 2 is transferred from the first position to the second position, it can reciprocate at least once between the second position and the second stop. In other words, after the movable cover 2 deviates from the second position due to inertia, it can return to the second position under the action of other forces, thus re-establishing a transmission engagement with the transmission mechanism 4. After the movable cover 2 returns to the second position, if the shaft of the DC motor has stopped rotating, the movable cover 2 can remain in the second position to wait for the next drive of the drive assembly. If the shaft of the DC motor 31 continues to rotate in the original direction after the movable cover 2 returns to the second position, the movable cover 2 can deviate from the second position again and move towards the second stop 124. If the shaft of the DC motor 31 rotates in the opposite direction to the original direction after the movable cover 2 returns to the second position, the movable cover 2 can be transferred by the transmission mechanism 4 to the direction of the first position based on the transmission engagement with the transmission mechanism 4.

[0097] The distance D2 between the second stop 124 and the second position can satisfy: 0.1mm≤D2≤2mm.

[0098] In some embodiments, the distance D1 between the first stop portion 123 and the first position is substantially equal to the distance D2 between the second stop portion 124 and the second position.

[0099] When the movable cover 2 is in the second position, the shaft 31 of the DC motor can continue to rotate in the original direction of rotation, so that the movable cover 2 can make multiple reciprocating movements between the second position and the second stop 124, thereby dynamically maintaining the movable cover 2 between the second position and the second stop 124.

[0100] In some embodiments, after at least one reciprocating motion occurs between the second position and the second stop 124, the shaft 31 of the DC motor stops rotating, and the movable cover 2 is configured to be in the second position when the shaft 31 of the DC motor stops rotating, so that the movable cover 2 can engage with the transmission mechanism 4 after the motion stops, and also helps to reduce the power consumption of the aerosol generating device 100.

[0101] For example, you can refer to Figure 1The aerosol generating device 100 also includes a first magnetic element 61 and a third magnetic element 63. The first magnetic element 61 is held on the movable cover 2, and the third magnetic element 63 is disposed corresponding to the second position. The first magnetic element 61 and the third magnetic element 63 can magnetically attract each other when the movable cover 2 is located between the second position and the second stop 124. Thus, when the movable cover 2 deviates from the second position and moves toward the second stop 124, the magnetic attraction between the first magnetic element 61 and the third magnetic element 63 forms a resistance to the movement of the movable cover 2, which helps to decelerate the movable cover 2. Furthermore, the magnetic attraction between the first magnetic element 61 and the third magnetic element 63 helps to automatically return the movable cover 2 from the second stop 124 to the second position, and helps to keep the movable cover 2 in the second position when the shaft 31 of the DC motor stops rotating.

[0102] Alternatively, for example (not shown), the aerosol generating device further includes a first magnetic element and a third magnetic element. The first magnetic element is held on the movable cover, and the third magnetic element is disposed corresponding to the first stop. The first and third magnetic elements repel each other when the movable cover is located between the second position and the second stop. Thus, when the movable cover deviates from the second position and moves towards the second stop, the magnetic repulsion between the first and third magnetic elements forms a resistance to the movement of the movable cover, which helps to decelerate the movable cover. Furthermore, the magnetic repulsion between the first and third magnetic elements helps to automatically return the movable cover from the second stop to the second position and helps to keep the movable cover in the second position when the shaft of the DC motor stops rotating.

[0103] Alternatively, for example (not shown), at least one of the movable cover and the second stop includes an elastic element, or an elastic element is provided between the movable cover and the second stop. When the movable cover deviates from the second position and moves toward the second stop, the elastic force provided by the elastic element can resist the movement of the movable cover, causing the movable cover to decelerate, and the elastic force provided by the elastic element can help the movable cover automatically return from the second stop to the second position, and help keep the movable cover in the second position when the shaft of the DC motor stops rotating.

[0104] In some embodiments, when the movable cover 2 is in the first position, the inlet 121 is closed. In some embodiments, when the movable cover 2 is between the first position and the first stop 123, the inlet 121 is closed. In some embodiments, when the movable cover 2 is in the second position, the inlet 121 is open. In some embodiments, when the movable cover 2 is between the second position and the second stop 124, the inlet 121 is open.

[0105] In some embodiments, reference may be made to Figure 1 and Figure 2The end cap 12 includes an inner cap 125 and an outer cap 126, and a movable cap 2 is movably disposed between the inner cap 125 and the outer cap 126. Thus, the movable cap 2 can be hidden in the end cap 12, allowing the aerosol generating device 100 to have a more aesthetically pleasing appearance.

[0106] The inlet 121 may include a first inlet 1211 disposed on the outer cover 126 and a second inlet 1212 disposed on the inner cover 125. The first inlet 1211 and the second inlet 1212 may be arranged along the central axis. At least a portion of the aerosol generating article 200 passes through the first inlet 1211 and the second inlet 1212 in sequence and is held in the receiving cavity 11.

[0107] The guide rail 122 can be mounted on the inner cover 125. The second magnetic element 62 and / or the third magnetic element 63 can be held on the inner cover 125.

[0108] In such Figure 7 In the embodiment shown, the inner cover 125 has a through hole 1251, at least part of the transmission mechanism 4 is located in the through hole 1251, and the drive mechanism 3 and the movable cover 2 are located on opposite sides of the inner cover 125, so that the end cover 12 can have a smaller thickness in the longitudinal direction, which helps to reduce the longitudinal dimension of the aerosol generating device 100.

[0109] In some embodiments, reference may be made to Figure 1 , Figure 2 and Figure 7 The aerosol generating apparatus 100 also includes a heating component 7 and a power supply 5 electrically connected to the heating component 7. The heating component 7 is used to heat the aerosol generating article 200 to generate aerosol.

[0110] When the aerosol generating matrix includes a liquid matrix stored in an aerosol matrix segment, the heating assembly may include a liquid absorption element and a heating element. The liquid absorption element absorbs the liquid matrix in the aerosol matrix segment and transfers the liquid matrix towards the heating element. The heating element releases heat, thereby atomizing the liquid matrix to generate an aerosol.

[0111] When the aerosol generating matrix includes a fixed matrix stored in an aerosol matrix segment, the heating assembly may include an internal heating element, an external heating element, and / or an air heating element.

[0112] The internal heating element refers to a heating element that is at least partially located inside the aerosol generating matrix when the aerosol generating device 100 and the aerosol generating product 200 are used together, thereby enabling the internal heating of the aerosol generating matrix.

[0113] The aforementioned external heating element refers to a heating element disposed outside the aerosol generating matrix when the aerosol generating device 100 and the aerosol generating product 200 are used together, thereby enabling external heating of the aerosol generating matrix. For example, refer to... Figure 2 The external heating element may include a tubular heating element 71, which is disposed around at least a portion of the aerosol generating article 200. Alternatively, for example, the external heating element may support the bottom or distal end of the aerosol generating article 200, thereby enabling heating of the bottom or distal end of the aerosol generating article 200.

[0114] The aforementioned air heating element is positioned upstream of the aerosol generating product 200 along the airflow direction to heat the flowing airflow, thereby forming a high-temperature airflow. The high-temperature airflow then flows into the interior of the aerosol generating matrix, thus using the high-temperature airflow to heat the aerosol generating matrix.

[0115] Heating elements may include resistive materials, infrared coatings, and / or sensors.

[0116] Resistive materials generate Joule heat when an electric current flows through them, and can primarily heat aerosol-based products through thermal conduction. Suitable resistive materials include, but are not limited to: semiconductors, such as doped ceramics, conductive ceramics (e.g., molybdenum disilicide), carbon, graphite, metals, metal alloys, and composite materials made of ceramic and metallic materials. Such composite materials may include doped or undoped ceramics. Examples of suitable doped ceramics include doped silicon carbide. Examples of suitable metals include titanium, zirconium, tantalum, and platinum group metals. Examples of suitable metal alloys include stainless steel, constantan, nickel-containing alloys, cobalt-containing alloys, chromium-containing alloys, aluminum-containing alloys, titanium-containing alloys, zirconium-containing alloys, hafnium-containing alloys, niobium-containing alloys, molybdenum-containing alloys, tantalum-containing alloys, tungsten-containing alloys, tin-containing alloys, gallium-containing alloys, manganese-containing alloys, and iron-containing alloys, as well as nickel-, iron-, and cobalt-based superalloys, stainless steel, iron-aluminum-based alloys, and iron-manganese-aluminum-based alloys.

[0117] When heated or when an electric current passes through it, the infrared coating can radiate infrared rays. The infrared coating primarily heats the aerosol matrix through thermal radiation. The infrared coating can radiate infrared rays with wavelengths from 0.75 μm to 1000 μm, preferably far-infrared rays with wavelengths from 1.5 μm to 400 μm, and more preferably far-infrared rays with wavelengths from 4 μm to 15 μm.

[0118] When used herein, the term "sensor" refers to a material capable of converting electromagnetic energy into heat. Eddy currents induced in the sensor when it is located within a changing electromagnetic field cause heating of the sensor. In such embodiments, the sensor is designed to engage with a power supply assembly including a magnetic field generator. The magnetic field generator generates a changing magnetic field to heat the sensor located within the changing magnetic field. In use, the sensor is located within the changing magnetic field generated by the magnetic field generator. The magnetic field generator is electrically connected to the power supply assembly, which provides current to the magnetic field generator to produce the changing magnetic field. The magnetic field generator may include one or more induction coils that generate the changing magnetic field, and the one or more induction coils may surround the sensor. In one embodiment, the aerosol generating device is capable of generating a changing magnetic field between 1 MHz and 30 MHz, for example, between 2 MHz and 10 MHz, or for example, between 5 MHz and 7 MHz. In one embodiment, the aerosol generating device is capable of generating a changing magnetic field with a field strength (H-field) between 1 and 5 kA / m, for example, between 2 kA / m and 3 kA / m, for example, about 2.5 kA / m.

[0119] The receptor may include a metal or carbon. In one embodiment, the receptor may include a ferromagnetic material, such as ferritic, ferromagnetic steel, or stainless steel. In one embodiment, the receptor includes a nickel-iron alloy. In one embodiment, the receptor includes 400 series stainless steel, which includes grade 410, 420, or 430 stainless steel.

[0120] The power source 5 may include any suitable battery, such as a lithium battery. The aerosol generating device also includes a circuit board 8. The circuit board 8 is electrically connected to the power source 5 and the heating assembly 7, and a controller or switching element on the circuit board 8 can control the power source 5 to output electrical power to the heating assembly 7. The circuit board 8 is also electrically connected to the power source 5 and the drive mechanism 3, and a controller or switching element on the circuit board 8 can control the power source 5 to output electrical power to the drive mechanism 3.

[0121] In some embodiments, reference may be made to Figure 7 and Figure 8 The drive mechanism 3, heating component 7, and power supply 5 are arranged horizontally. Compared to arranging the drive mechanism 3 and power supply 5 vertically, this increases the power supply holding space inside the aerosol generating device 100 (i.e., the space of the first receiving slot 91), thereby accommodating a larger power supply 5 and helping to give the aerosol generating device 100 a longer operating time.

[0122] The heating component 7, the driving mechanism 3, and the power supply 5 can be arranged in the annular body 13 of the housing 1. Among the three components, the driving mechanism 3 has the smallest volume. Since there must be a gap between the heating component 7 and the power supply 5, the driving mechanism 3 is arranged longitudinally in the gap between the heating component 7, the power supply 5, and the annular body 13. This can make full use of the internal space of the aerosol generating device 100 and help to reduce the volume of the aerosol generating device 100.

[0123] In some embodiments, the aerosol generating device 100 further includes a support 9 having a first receiving groove 91 and a second receiving groove 92 spaced apart, at least partially of the power supply 5 being held in the first receiving groove 91, the second receiving groove 92 extending longitudinally, and at least partially of the drive mechanism 3 being held in the second receiving groove 92; wherein the support 9 supports the end cap 12 longitudinally.

[0124] In some embodiments, the heating assembly 7 is capable of supporting the end cap 12 longitudinally. For example, see reference to Figure 2 The heating assembly 7 includes a first tubular body 72, in which at least a portion of the receiving cavity 11 is located, and the first tubular body 72 supports the end cap 12 in the longitudinal direction.

[0125] In some embodiments, the aerosol generating device 100 further includes an interactive element that can be operated by a user, allowing the user to control the drive assembly to close or open the inlet 121. The interactive element may be a button, a slide switch, a touchscreen, or a remote control, etc.

[0126] In some embodiments, the aerosol generating apparatus 100 further includes a detection sensor 101 for detecting the presence of the aerosol generating article 200 in the receiving cavity 11. The detection sensor 101 can be electrically connected to a controller on the circuit board 8. When there is no aerosol generating article 200 in the receiving cavity 11, the controller can control the drive assembly to automatically close the inlet 121. When it is necessary to insert at least a portion of the aerosol generating article 200 into the receiving cavity 11, the user can issue a command to the controller via an interactive element, and then the controller controls the drive assembly to open the inlet 121. Furthermore, when the inlet 121 is open, the aerosol generating device 100 can time the opening time of the inlet 121. After a preset time (which can be 2-10 seconds, for example, 3 seconds) is reached, if the detection sensor 101 still does not detect the presence of the aerosol generating product 200 in the receiving cavity 11, the controller can control the drive assembly to drive the movable cover 2 to automatically close the inlet 121, so as to prevent the inlet 121 from being open for a long time when there is no aerosol generating product 200 in the receiving cavity 11.

[0127] When the detection sensor 101 does not detect the presence of the aerosol-generating article 200 in the containment cavity 11, the controller can control the power supply 5 to stop providing electrical power to the heating assembly 7. The power supply 7 can be configured to provide electrical power to the heating assembly 7 only when the detection sensor 101 detects the presence of the aerosol-generating article 200 in the containment cavity 11.

[0128] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in the specification. Furthermore, for those skilled in the art, any two or more embodiments given in the specification and accompanying drawings can be combined with each other, and for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol generating device, characterized in that, include: A housing having an internal cavity, and the housing including an end cap having an inlet for at least a portion of an aerosol-generated article to enter and remain in the cavity; The movable cover is configured to move relative to the inlet; A drive component for driving the movable cover to move; A detection sensor and a controller are provided, wherein the detection sensor is used to detect whether there is an aerosol-generating article in the containment cavity, and the controller is configured to control the drive assembly to drive the movable cover to close the inlet when there is no aerosol-generating article in the containment cavity.

2. The aerosol generating apparatus according to claim 1, characterized in that, The controller is configured to control the drive assembly to drive the movable cover to close the inlet when the duration of no aerosol-generated article in the containment cavity reaches a preset time.

3. The aerosol generating apparatus according to claim 2, characterized in that, The preset duration is 2S-10S.

4. The aerosol generating apparatus according to claim 1, characterized in that, The aerosol generating apparatus further includes a heating component and a power supply electrically connected to the heating component. The heating component is used to heat the aerosol generating product to generate aerosol. The controller is configured to control the power supply to provide electrical power to the heating assembly only when the detection sensor detects the presence of aerosol-generating articles in the containment cavity; or The controller is configured to stop supplying power to the heating assembly when the detection sensor detects that no aerosol-generated article is formed in the containment cavity.

5. The aerosol generating apparatus according to claim 1, characterized in that, The aerosol generating device also includes an interactive element, and the controller is configured to control the drive assembly to drive the movable cover to open the inlet according to the instructions issued by the interactive element.

6. The aerosol generating apparatus according to claim 5, characterized in that, The interactive elements include buttons, slide switches, touch screens, or remote controls.

7. The aerosol generating apparatus according to claim 1, characterized in that, The end cap includes an inner cap and an outer cap, and the movable cap is movably disposed between the inner cap and the outer cap.

8. The aerosol generating apparatus according to claim 7, characterized in that, The inner cover is provided with a guide rail, and the movable cover is configured to slide along the guide rail to close or open the inlet.

9. The aerosol generating apparatus according to claim 1, characterized in that, The drive assembly includes a DC motor and a transmission mechanism linked to the movable cover. The transmission mechanism is configured to drive the movable cover under the drive of the DC motor to close or open the inlet. The transmission stroke of the drive assembly to the movable cover is less than the actual movement stroke of the movable cover.

10. The aerosol generating apparatus according to claim 1, characterized in that, The drive assembly includes a longitudinally arranged drive mechanism and a transmission mechanism. The drive mechanism is configured to drive the movable cover to move laterally via the transmission mechanism, so as to close or open the inlet.

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