Aerosol generation device

Abstract

This application discloses an aerosol generating device, including an atomizer and a power supply assembly. The power supply assembly includes a first housing with an open end, at least a portion of which defines a receiving cavity that can accommodate at least a portion of the surface of the atomizer. The atomizer is configured to be inserted into the receiving cavity from the open end in a first operating orientation and also in a second operating orientation, wherein the second operating orientation is a rotation of the atomizer along its axial direction relative to the first operating orientation. The power supply assembly has an air inlet for external air to enter, and the atomizer has an airflow channel communicating with the air inlet. The aerosol generating device is configured to adjust the airflow volume entering the airflow channel of the atomizer by changing the atomizer's insertion into the receiving cavity in different operating orientations, making operation simple and convenient.

Description

Technical Field

[0001] This application relates to the field of aerosol generating devices, and more particularly to an aerosol generating device with adjustable airflow. Background Technology

[0002] Aerosol generating devices typically include an atomizer with nebulization capabilities and a power supply unit that electrically drives the atomizer. Besides electrical connection, airflow exists between the atomizer and the power supply unit. This airflow allows an airflow sensor within the power supply unit to detect the negative pressure generated by inhalation within the atomizer, triggering the electric drive to generate aerosol. Furthermore, in existing aerosol generating devices, external air flows into the airflow channel within the atomizer through the gap between the power supply unit and the atomizer. However, due to the instability caused by factors such as assembly process variations and differences in component dimensions, the gap between different aerosol generating devices varies significantly, making it difficult to adjust the airflow rate entering the atomizer. Furthermore, the airflow rate can cause the airflow sensor to malfunction and increase the inhalation resistance of the aerosol generating device, severely impacting the user's vaping experience. Summary of the Invention

[0003] To address the difficulty in adjusting the air intake of existing aerosol generating devices, this application provides an aerosol generating device, including an atomizer for storing a liquid matrix and generating an aerosol, and a power supply assembly for electrically driving the atomizer. The power supply assembly includes a first housing with an open end, at least a portion of which defines a receiving cavity that can accommodate at least a portion of the surface of the atomizer. The atomizer is configured to be inserted into the receiving cavity from the open end in a first operating orientation and also in a second operating orientation, wherein the second operating orientation is a rotational angle relative to the first operating orientation along the axial direction of the atomizer. The power supply assembly has an air inlet for external air to enter, and the atomizer has an airflow channel communicating with the air inlet. The aerosol generating device is configured to selectively engage with the power supply assembly in either the first or second operating orientation, thereby adjusting the air intake through the airflow channel when the aerosol generating device is aspirated.

[0004] In some embodiments, the atomizer or power supply assembly is provided with a shielding member; when the atomizer is engaged with the power supply assembly, the airflow channel is connected to the air inlet to form an airflow path for airflow communication, and the shielding member can selectively at least partially shield the airflow path under different operating orientations to change the air inlet cross-sectional area of ​​the airflow path.

[0005] In some embodiments, the shield is located on the atomizer; when the atomizer is inserted into the receiving cavity in a first operating orientation, the shield is offset from the air intake channel on the power assembly; when the atomizer is inserted into the receiving cavity in a second operating orientation, the shield may block at least a portion of the air intake channel.

[0006] In some embodiments, the air intake channel includes at least two spaced-apart air intakes; when the atomizer is inserted into the receiving cavity in a second operating orientation, the shield blocks one of the air intakes.

[0007] In some embodiments, the air intake channel includes an elongated air intake hole; when the atomizer is inserted into the receiving cavity in a second operating orientation, the shielding member blocks a portion of the air intake hole.

[0008] In some embodiments, the atomizer has an end face that engages with a power supply assembly, and the shielding member includes a protrusion extending beyond the end face.

[0009] In some embodiments, the airflow channel of the atomizer includes a first vent and a second vent; the cross-sectional area through which the airflow is allowed to pass through the first vent is different from the cross-sectional area through which the airflow is allowed to pass through the second vent; when the atomizer is inserted into the receiving cavity in a first operating orientation, the first vent communicates with the air inlet to form an airflow path for the airflow channel; when the atomizer is inserted into the receiving cavity in a second operating orientation, the second vent communicates with the air inlet to form an airflow path for the airflow channel.

[0010] In some embodiments, the atomizer has an end face that engages with a power supply assembly; the power supply assembly and the end face define a sealed airflow chamber that is in fluid communication with the air inlet; when the atomizer is inserted into the receiving cavity in different operating orientations, one of the first air inlet and the second air inlet remains in fluid communication with the airflow chamber.

[0011] In some embodiments, the atomizer is generally flat, and the first operating orientation is rotated 180 degrees relative to the second operating orientation.

[0012] In some embodiments, the power supply assembly further includes an airflow sensing switch and an airflow detection channel connected to one end of the airflow sensing switch; when the atomizer is engaged with the power supply assembly in a first operating orientation and a second operating orientation, it remains connected to the airflow channel via the airflow detection channel.

[0013] In some implementations, the power supply assembly includes a bracket fixed inside the first housing; the atomizer includes an end cap; the bracket is provided with a seal, the seal and the end cap defining a sealed air guide cavity; the air guide cavity connects the air intake channel and the airflow channel.

[0014] In some embodiments, the bracket has a notch that connects the air intake channel and the air intake port.

[0015] In some embodiments, the air intake channel includes at least one air guide hole that extends through the bracket and the seal; the direction of the notch extension is perpendicular to the extension direction of the air guide hole.

[0016] The beneficial effects of this application are that, since the atomizer is configured to be inserted into the receiving cavity inside the power assembly with different operating orientations, the user can adjust the air intake volume of the airflow channel through the atomizer when the atomizer is drawn in by adjusting the operating orientation of the atomizer inserted into the receiving cavity; when the air intake volume of the airflow channel inside the atomizer changes, the suction resistance of the atomizer is adjusted accordingly, making operation simple and convenient. Furthermore, the air intake volume of the airflow channel inside the atomizer provided in this application is mainly adjusted by the operating orientation of the atomizer inserted into the receiving cavity of the power assembly, and is less affected by the fitting gap between the atomizer and the power assembly, further reducing the problem of difficulty in adjusting the suction resistance of the atomizer due to assembly errors. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 This is a schematic diagram of the aerosol generating device provided in the embodiments of this application; Figure 2 This is an exploded view of the power supply component provided in an embodiment of this application; Figure 3 This is a cross-sectional view of the atomizer provided in the embodiment of this application; Figure 4 This is an exploded view of the atomizer provided in an embodiment of this application; Figure 5 This is a perspective view of the power supply assembly provided in the embodiment of this application after removing the housing; Figure 6 This is a cross-sectional view of the atomizer provided in the embodiment of this application inserted into the receiving cavity at a first angle; Figure 7 This is a cross-sectional view of the atomizer provided in the embodiment of this application inserted into the receiving cavity at a second angle; Figure 8 yes Figure 6 A magnified view of a portion of the image; Figure 9 yes Figure 7 A magnified view of a portion of the image; Figure 10 This is a schematic diagram of the structure of an atomizer inserted into the receiving cavity at a first angle according to another embodiment of this application; Figure 11 This is a schematic diagram of the structure of an atomizer inserted into the receiving cavity at a second angle, according to another embodiment of this application. Detailed Implementation

[0019] To facilitate understanding of this application, a more detailed description of this application will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly. The "connection" can be a direct connection or an indirect connection. The "set", "set in", and "set at" can be a direct setting or an indirect setting.

[0021] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0022] This application provides an aerosol generating apparatus, referenced... Figure 1 As shown, it includes an atomizer 100 with atomizing function and a power supply assembly 200 with electric drive and control functions. In some embodiments, reference is made to... Figure 2 and Figure 5The power supply assembly 200 includes a first housing 40, a power supply 41 housed inside the first housing 40, and a control module. In some embodiments, the first housing 40 also includes a bracket 42 for fixing the battery and the control module. The bracket 42 has two side walls 421 arranged laterally opposite each other and a first end 422 and a second end 423 arranged longitudinally opposite each other. The two side walls 421 abut against the inner wall of the first housing 40, and the first end 422 is mainly used to connect to the atomizer 100. A sealing ring is nested on the first end 422 to seal against the inner wall of the first housing 40. A portion of the side walls 421 of the bracket 42, the two longitudinally opposite fixed ends, and the bottom wall connecting the side walls 421 and the two fixed ends form a battery cavity 424 for housing the power supply 41. Flexible elements are provided at both ends of the power supply 41 and between the two fixed ends of the bracket 42, so that the power supply 41 will not be damaged by compression even if it undergoes certain deformation during use. A control board 43 is fixed on the bottom wall of the bracket 42. A control module is welded onto the control board 43 to control the working status of the aerosol generating device.

[0023] In some embodiments, reference Figure 2 and Figure 6 As shown, the first housing 40 contains an airflow sensing switch assembly 44 for controlling the operating state of the power supply assembly 200. The airflow sensing switch assembly 44 includes an airflow sensing switch 441 and a silicone sleeve 442 surrounding the airflow sensing switch 441. A mounting slot 425 for fixing the airflow sensing switch assembly 44 is provided on the bracket 42. The airflow sensing switch assembly 44 is electrically connected to the control board 43 via wires. The airflow sensing switch 441 has two airflow sensing terminals. One airflow sensing terminal is always connected to the external airflow, while the other airflow sensing terminal is a detection terminal connected to the airflow channel 14 inside the atomizer 100. When a negative pressure is generated in the airflow channel 14 inside the atomizer 100, the airflow sensing switch 441 converts the air pressure change signal into an electrical signal and feeds it back to the control module inside the power supply assembly 200, thereby generating an electric drive.

[0024] In some embodiments, the power supply assembly 200 further includes a mechanical switch assembly 45 for controlling the operating state of the power supply assembly 200. The mechanical switch assembly 45 can be operated by pressing or touching. The mechanical switch assembly 45 includes an operating element 451 and a sensing element 452 disposed on the operating element 451, the sensing element 452 being electrically connected to the control board 43. When the user presses or touches the operating element 451, the sensing element 452 senses the deformation and converts the deformation signal into an electrical signal, which is then fed back to the control module to generate an electric drive. To facilitate user operation of the operating element 451, at least a portion of the surface of the operating element 451 protrudes from the outer surface of the first housing 40. In some embodiments, a decorative assembly 46 is provided around the operating element 451. The decorative assembly 46 serves two purposes: firstly, to indicate the position of the operating element 451 to the user; secondly, the decorative assembly 46 may be a light-emitting element. When the power supply assembly 200 is operating, the decorative assembly 46 illuminates, thereby indicating to the user that the power supply assembly 200 has been activated, and simultaneously enhancing the overall entertainment value of the power supply assembly 200. Decorative component 46 includes a decorative frame 461 surrounding the operating element 451, and a light guide and a light-emitting element disposed below the decorative frame 461, the light-emitting element being electrically connected to the control module. A window 47 is provided on the first housing 40, and at least a portion of the decorative frame 461 and the operating element 451 are fixed to the window 47. Mechanical switch assembly 45 and decorative component 46 are fixed to a connector 48, which is snapped onto the control board 43 via locking points at its ends. In some embodiments, airflow sensing switch assembly 44 and mechanical switch assembly 45 can also be simultaneously disposed on the power supply assembly 200. This allows the user to choose a convenient operating method according to their preference; furthermore, if one of the airflow sensing switch assembly 44 or mechanical switch assembly 45 is damaged or malfunctioning, the user can still operate the other without affecting the overall use of the aerosol generating device.

[0025] The power supply assembly 200 also includes a charging module 49, which includes a charging plate 491 and a charging interface 492 fixed to the charging plate 491. The charging plate 491 is electrically connected to the control board 43 and the power supply 41. The charging plate 491 is fixed to the second end 423 of the bracket 42. A base 50 is also fixed to one end of the first housing 40, covering the bottom opening of the first housing 40 and engaging with it. Several shallow grooves are provided on the wall of the base 50 that contacts the first housing 40, which can be used to accommodate small amounts of liquid matrix that leaks from inside the power supply assembly 200 and prevent the liquid matrix from leaking to the outside of the power supply assembly 200. The second end 423 of the bracket 42 is provided with a longitudinally extending buckle 426, which engages with the base 50, so that the bracket 42 can be stably held inside the first housing 40. The base 50 is provided with an opening for the charging interface 492 to be exposed.

[0026] In some embodiments, the atomizer 100 is generally flat or cylindrical, see reference. Figures 3 to 5 As shown, the atomizer 100 includes a hollow second housing 10. The second housing 10 has a proximal end and a distal end that are disposed opposite each other. The proximal end is generally flat or mouthpiece-shaped, and has a small opening at its end to form a mouthpiece opening 110, through which aerosol can be output to the outside of the atomizer 100. The distal end of the second housing 10 is open to facilitate the installation of other functional components of the atomizer 100. An inner tube 11 is provided inside the second housing 10, which extends from the mouthpiece opening 110 into the interior of the second housing 10. The inner cavity of the inner tube 11 forms an air outlet channel 12 for outputting aerosol. A portion of the space inside the second housing 10 forms a liquid storage chamber 13 for storing liquid matrix. The second housing 10 also has an injection port and an injection plug 15 sealed on the injection port. When the liquid matrix inside the liquid storage chamber 13 is consumed, the user can remove the injection plug 15 and replenish the liquid matrix into the liquid storage chamber 13 through the injection port on the second housing 10.

[0027] The second housing 10 also includes an atomizing assembly 20 for atomizing the liquid matrix to form an aerosol. The atomizing assembly 20 includes a heating element 21 for heating the liquid matrix and a liquid guiding element 22 for absorbing and transferring the liquid matrix. The atomizing assembly 20 also includes a support assembly 23 for fixing the heating element 21 and the liquid guiding element 22. In some embodiments, the heating element 21 may be a spiral heating wire or heating mesh made of at least one of stainless steel, nickel-chromium alloy, iron-chromium-aluminum alloy, or titanium; the liquid guiding element 22 may be made of a material with excellent liquid storage performance and capillary structure, such as non-woven fabric or cotton. The liquid guiding element 22 may be fixedly disposed outside the spiral heating wire or heating mesh, and the heating element 22 extends longitudinally along the second housing 10; or, the spiral heating wire or heating mesh may be disposed around at least a portion of the surface of the liquid guiding element 22, and the liquid guiding element 22 may be disposed perpendicular to the longitudinal direction of the second housing 10. In some embodiments, the liquid guiding element 22 can be a porous body made of a hard capillary structure such as porous ceramic, porous glass ceramic, or porous glass. The liquid guiding element 22 is generally block-shaped, and a heating element 21 is fixed on at least a portion of its surface. The heating element 21 can be one of a heating coating, a heating plate, or a heating mesh. The heating coating may include, but is not limited to, electromagnetic induction heating coatings and infrared induction heating coatings. Alternatively, the heating element 21 can be made by mixing conductive raw material powder with printing additives to form a slurry, which is then sintered onto the surface of the porous body after printing.

[0028] In some embodiments, the support assembly 23 includes a generally tubular upper connecting seat 231 and a lower connecting seat 232 connected to the upper connecting seat 231. One end of the upper connecting seat 231 is inserted into the inner tube 11 and is sealed to the wall of the inner tube 11. The upper connecting seat 231 is provided with a plurality of liquid guiding holes 233 communicating with the liquid storage chamber 13. The liquid guiding element 22 includes a first liquid guiding element 221 and a second liquid guiding element 222. The first liquid guiding element 221 is disposed around the heating element 21, and the second liquid guiding element 222 is disposed between the upper connecting seat 231 and the lower connecting seat 232. One end of the lower connecting seat 232 is open, and an opening is provided on a portion of the wall of the upper support 232, through which the first liquid guiding element 22 is fixed inside the lower connecting seat 232. One end of the lower connector 232 abuts against the inner wall of the upper connector 231. A portion of the inner cavity of the lower connector 232 forms an atomizing chamber 24, which is connected to the air outlet channel 12 connected to the upper connector 231. The liquid matrix in the liquid storage chamber 13 is absorbed by the second liquid guiding element 222 and the first liquid guiding element 221 through the liquid guiding hole 233 and then transferred to the heating element 21. The liquid matrix is ​​atomized by the heating element 21 to form an aerosol. In some embodiments, the lower connector 232 has a through-hole inner cavity, and a first electrode assembly 25 is fixed in the lower end inner cavity of the lower connector 232. The first electrode assembly 25 includes a first positive electrode 251 and a second negative electrode 252. The heating element 21 has two electrode pins and is electrically connected to the first positive electrode 251 and the first negative electrode 252 respectively through wires. In some embodiments, the positive electrode and the negative electrode are integrally formed, and an insulating ring is provided between the two components.

[0029] The atomizer 100 also includes a separator 30, which is generally sleeve-shaped. On one hand, it is sealed to the inner wall of the second housing 10 to seal the liquid storage chamber 13. On the other hand, the separator 30 has a fixing hole and is sleeved on the outer wall of the support component 23 of the atomizing assembly 20, and is sealed to the atomizing assembly 23. Furthermore, the separator 30 is located below the liquid guiding hole 233 to prevent leakage of the liquid matrix.

[0030] The atomizer 100 also includes an end cap 31 located at the distal opening of the second housing 10. The end cap 31 primarily provides further support for the atomizing assembly 20 and covers the open end of the second housing 10. The end cap 31 can be snapped onto the second housing 10, and a first electrode connector 25 is fixed to the end cap 31. In some embodiments, the atomizer 100 has an internal airflow channel 14, which includes at least one vent 311 located on the end cap 31, and the vent 311 communicates with external airflow. Further, the airflow channel 14 also includes at least one vent 312 located on the support assembly 23, one end of which communicates with the vent 311, and the other end of which communicates with the atomizing chamber 24. External air can enter the atomizing chamber 24 through the vent 311 and the vent 312.

[0031] In some embodiments, the atomizer 100 and the power supply assembly 200 are detachably connected, for example, by magnetic connection or snap-fit ​​connection. Taking the snap-fit ​​connection as an example, a plurality of snaps are symmetrically arranged on the surface of the second housing 10 of the atomizer 100, and a plurality of matching grooves are provided on the inner wall of the first housing 40 of the power supply assembly 200. The atomizer 100 is connected to the grooves on the power supply assembly 200 through these snaps. To maintain a stable connection between the two components, at least a portion of the interior of the first housing 40 of the power supply assembly 200 defines a receiving cavity 60. One end of the first housing 40 is open, allowing the atomizer 100 to be inserted into the receiving cavity 60 through the open end 61, and at least a portion of the surface of the atomizer 100 is contained within the receiving cavity 60. In some embodiments, an open groove is formed on the first end 422 of the support 42 inside the power supply assembly 200, and a sealing member 63 is also provided within the groove. The seal 63 includes a main body 631 and a surrounding portion 632. The main body 631 fills at least a portion of the groove of the first end 422 of the bracket 42, and the surrounding portion 632 at least partially protrudes from the end face of the first end 422 of the bracket 42. When the atomizer 100 is connected to the power assembly 200, the end face of the surrounding portion 632 of the seal 63 contacts at least a portion of the bottom surface of the end cap 31, and the seal 63 and the end cap 31 enclose to form a sealed air guide cavity 64, which allows airflow between the atomizer 100 and the power assembly 200.

[0032] Furthermore, a second electrode assembly 52 is provided on the bracket 42. The second electrode assembly 52 includes a second positive electrode 521 and a second negative electrode 522, which can be conductive springs. One end of the second electrode assembly 52 is electrically connected to the control board 43 via a wire. The second electrode assembly 52 protrudes from the sealing member 63. When the atomizer 100 is connected to the power supply assembly 200, the second electrode assembly 52 contacts the first electrode assembly 25 inside the atomizer 100, thereby establishing an electrical connection so that the power supply assembly 200 can provide electrical drive to the heating element 21.

[0033] An air inlet 65 is provided on the first housing 40. In a preferred embodiment, the air inlet 65 is located near the air guide cavity 64. An air intake channel 66 communicating with the air guide cavity 63 is also provided inside the first housing 40. The air intake channel 66 includes at least one air inlet hole 67 penetrating through the first end of the seal 63 and the bracket 42, and a notch 68 provided on the first end 422 of the bracket 42. The air inlet hole 67 communicates with the notch 68, and the notch 68 communicates with the air inlet 65. External air enters the air guide cavity 64 through the air inlet 65 and the air intake channel 66 on the power assembly 200, and then enters the airflow channel 14 inside the atomizer 100. The notch 68 extends approximately laterally along the first housing 40, and the air inlet hole 67 extends approximately longitudinally along the first housing 40. The airflow direction of the notch 68 is approximately perpendicular to the airflow direction of the air inlet hole 67. Furthermore, the bracket 42 is preferably made of rigid plastic material, and the seal 63 is preferably made of soft silicone material. The notch 68 is provided on the bracket 42, and the air inlet 67 is provided on the bracket 42 and the seal 63. When the atomizer 100 is inserted into the receiving cavity 60, the size of the notch 68 remains unchanged, and the air intake through the notch 68 is not affected.

[0034] Users often need to adjust the suction resistance of the atomizer 100 when using the aerosol generating device. In particular, different users may have different experiences with the suction resistance of the same aerosol generating device. In a preferred embodiment, the aerosol generating device needs to be designed with adjustable suction resistance. In the suction resistance adjustment scheme provided in this application, the atomizer 100 is designed to be inserted into the receiving cavity 60 inside the power assembly 200 at multiple angles. When the angle at which the atomizer 100 is inserted into the open end 61 of the first housing 40 changes, the amount of air introduced into the air intake channel 14 inside the atomizer 100 by the air intake channel 66 of the power assembly 200 will change. In some embodiments, the airflow channel 14 includes a vent 311 on the end cap 31, a vent 312 on the support assembly 23, an atomizing chamber 24, and an outlet channel 12. When the airflow rate entering the airflow channel 14 of the atomizer 100 is large, the suction resistance is small when the user uses the aerosol generating device; when the airflow rate entering the airflow channel 14 of the atomizer 100 is small, the suction resistance is large when the user uses the aerosol generating device.

[0035] In one embodiment provided in this application, the air intake channel 66 on the power supply assembly 200 is designed to have an adjustable air intake volume. When the air intake volume of the air intake channel 66 is large, more airflow enters the air outlet 311 of the atomizer 100 through the air guide chamber 64, resulting in lower suction resistance of the atomizer 100. When the air intake volume of the air intake channel 66 is small, less airflow enters the air outlet 311 of the atomizer 100 through the air guide chamber 64, resulting in higher suction resistance of the atomizer 100. A baffle 70 is provided on the end cap 31 of the atomizer 100. By changing the angle at which the atomizer 100 is inserted into the first housing 40, the volume of the air intake port 67 of the power supply assembly 200 blocked by the baffle 70 changes, thereby changing the airflow rate entering the air guide chamber 64 through the air intake port 67.

[0036] In some embodiments, the blocking member 70 may be a protrusion, and the air inlet hole 67 may be a strip-shaped opening. When the atomizer 100 rotates, the relative positional relationship between the blocking member 70 and the air inlet hole 67 changes. Taking the cylindrical atomizer 100 as an example, when the atomizer 100 is inserted with a 0-degree rotation around the longitudinal axis of the second housing 10, the blocking member 70 is offset from the air inlet hole 67, and the blocking member 70 does not block the air inlet hole 67 at all. The cross-section of the air inlet hole 67 allowing the air flow to pass through has the maximum air inlet area M0. When the atomizer 100 is inserted with a 30-degree, 120-degree or 210-degree rotation around the longitudinal axis of the second housing 10, the blocking member 70 blocks a smaller part of the air inlet hole 67. The cross-section of the unblocked part of the air inlet hole 67 allowing the air flow to pass through has an air inlet area of M1, and M1 < M0. When the atomizer 100 is inserted with a 60-degree, 150-degree or 240-degree rotation around the longitudinal axis of the second housing 10, the blocking member 70 blocks a larger part of the air inlet hole 67. The cross-section of the unblocked part of the air inlet hole 67 allowing the air flow to pass through has an air inlet area of M2, and M2 < M1 < M0. When the atomizer 100 is inserted with a 90-degree, 180-degree or 270-degree rotation around the longitudinal axis of the second housing 10, the blocking member 70 completely blocks the air inlet hole 67, and the air flow allowed to pass through the air inlet hole 67 is 0. When the air flow allowed to pass through the air inlet hole 67 is 0, it is possible to prevent the aerosol generating device from being accidentally triggered during long-term placement. For example, due to the lack of air flow into the atomizer 100 during the imitative sucking actions of children and minors, the aerosol generating device will not work to generate aerosol. In another embodiment, the air inlet passage 66 on the power supply assembly 200 includes a plurality of air inlet holes 67 arranged at circumferential intervals, and the blocking member 70 may be a plurality of protrusions arranged at intervals on the end cap 31, and the number of protrusions is different from the number of air inlet holes. Each protrusion can block one air inlet hole 67. During the rotation of the atomizer 100, the number of air inlet holes 67 blocked by the blocking member 70 will change, thereby adjusting the magnitude of the air flow allowed to pass through the air inlet passage 66. It can be understood that the rotation angle of the atomizer 100 and the cross-sectional area of the air inlet hole 67 allowing the air flow to pass through can be optimized according to the actual air flow adjustment requirements of the product and the user's usage habits, and are not limited herein.

[0037] In another embodiment, the atomizer 100 may be flat, refer to Figures 6 to 9As shown, the atomizer 100 can be inserted into the first housing 40 at a first angle or a second angle. The first angle is defined as 0 degrees, and the second angle is defined as 180 degrees. The obstruction 70 is a protrusion on the end cap 31. When the atomizer 100 is inserted at the first angle, the obstruction 70 is offset from the air inlet 67 on the power assembly 200, maximizing the airflow allowed through the air inlet 66. In some embodiments, the air intake channel 66 includes an elongated air inlet 67. When the atomizer 100 is inserted at the second angle, the obstruction 70 can block a portion of the air inlet 67, reducing the airflow allowed through the outlet end of the air intake channel 66. In some embodiments, the air intake channel 66 includes two spaced-apart air inlets 67. When the atomizer 100 is inserted at the second angle, the obstruction 70 can block one of the two air inlets 67, reducing the airflow allowed through the outlet end of the air intake channel 66. Furthermore, the airflow from the air inlet 66 to the air guide chamber 64, and from the air guide chamber 64 to the air outlet 311 of the atomizer 100, decreases sequentially. Consequently, the airflow into the airflow channel 14 inside the atomizer 100 decreases, increasing the suction resistance required by the user. In some embodiments, inserting the atomizer 100 into the first housing 40 at a first angle can be defined as a first suction resistance mode, and inserting the atomizer 100 into the first housing 40 at a second angle can be defined as a second suction resistance mode. In the embodiments provided above, the suction resistance of the first suction resistance mode is less than that of the second suction resistance mode. Different users can select different suction resistance modes by choosing to insert the atomizer 100 into the first housing 40 at either the first or second angle. A specific suction resistance mode can be selected before starting to inhale, or a suitable suction mode can be changed during inhale based on the actual suction resistance experienced.

[0038] In yet another embodiment provided in this application, the air intake area at the inlet end of the airflow channel 14 on the atomizer 100, allowing airflow to pass through, is set to an adjustable manner. (See reference...) Figure 10 and Figure 11 As shown, two air vents 311 can be provided on the end cap 31 of the atomizer 100, including a first air vent 3111 and a second air vent 3112. Both the first air vent 3111 and the second air vent 3112 are in airflow communication with the air vent 312 provided on the support assembly 23. The cross-sectional area N1 through which the airflow can pass through the first air vent 3111 is larger than the cross-sectional area N2 through which the airflow can pass through the second air vent 3112. When the atomizer 100 is connected to the power supply assembly 200, one of the first air vent 3111 and the second air vent 3112 is in communication with the air guide chamber 64. Figure 10As shown, when the atomizer 100 is inserted into the first housing 40 at a first angle, only the first air vent 3111 communicates with the air guide chamber 64. The second air vent 3112 is blocked by the solid part of the seal 63 of the power assembly 200. The airflow introduced by the air inlet 65 is introduced into the atomizer through the first air vent 3111. Under the same suction operation conditions, the airflow rate per unit time that flows from the first air vent 3111 into the air vent 312 on the support assembly 23 is q1. Figure 11 As shown, when the atomizer 100 is inserted into the first housing 40 at the second angle, only the second air vent 3112 is in fluid communication with the air intake of the air guide chamber 64. The first air vent 3111 is blocked by the solid part of the bracket 42 of the power supply assembly 200. The airflow introduced by the air intake 65 is introduced into the atomizer through the second air vent 3112. Under the same suction operation conditions, the airflow rate per unit time that flows into the air vent 312 on the support assembly 23 through the second air vent 3112 is q2. Since N1>N2, while maintaining the same suction force and suction time, when the atomizer 100 is inserted into the first housing 40 at the second angle, the air intake volume of the airflow channel 14 of the atomizer 100 is less than the air intake volume when the atomizer 100 is inserted into the first housing 40 at the first angle. Specifically, the angle adjustment range of the first angle relative to the second angle can be optimized according to the shape of the atomizer 100.

[0039] When the power supply assembly 200 of the aerosol generating device is equipped with an airflow sensing switch assembly 44, a through airflow detection channel 71 is provided on the bracket 42. The airflow detection channel 71 can be a ventilation column that passes through the bracket 42 and protrudes from the sealing member 63. One end of the airflow detection channel 71 is connected to the airflow channel 14 inside the atomizer 100, and the other end is connected to the detection end of the airflow sensing switch 441. Furthermore, the airflow detection channel 71 is set away from the air intake channel 66. When the airflow rate of the air intake channel 66 changes, since the airflow detection channel 71 is set separately from the air intake channel 66, when the atomizer 100 is inserted into the first housing 10 at different angles, it will not affect the airflow rate of the airflow detection channel 71. During the user's inhalation process, the airflow rate entering the airflow detection channel 71 remains constant. Therefore, when adjusting the airflow rate of the airflow channel 14 inside the atomizer 100, it will not affect the detection sensitivity of the airflow sensing switch 441.

[0040] In some embodiments, the air intake volume of the airflow channel 14 of the atomizer 100 is controlled within a reasonable range so that the suction resistance of the atomizer 100 is always greater than the triggerable negative pressure value of the airflow sensing switch 441, ensuring that the airflow sensing switch 441 can always be triggered normally during the airflow adjustment process. For example, the trigger value of the airflow sensor switch 441 is -250 Pa, and the pressure range corresponding to the adjustable suction resistance of the atomizer 100 is 400 ± 100 Pa. This ensures that when the suction resistance of the atomizer 100 reaches its minimum, the negative pressure value of the airflow channel inside the atomizer 100 is 300 Pa, which is greater than the minimum negative pressure condition required for the airflow sensor switch 441 to trigger. Furthermore, since the airflow channel 14 inside the atomizer 100 and the air intake channel 66 inside the power supply component 200 are connected by a sealed air guide chamber 64, and the airflow detection channel 71 is also connected by an air guide chamber 64 and the airflow channel 14 inside the atomizer 100, no air leakage occurs during the airflow process. This further improves the detection sensitivity of the airflow sensor switch 14, enabling the airflow sensor switch 441 to work normally during the airflow adjustment and suction process of the atomizer 100 and the power supply component 200.

[0041] 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 this specification. Furthermore, those skilled in the art can make improvements or modifications 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: An atomizer for storing a liquid matrix and atomizing the liquid matrix to form an aerosol, and a power supply assembly for providing electric drive for the atomizer; The power assembly includes a first housing having an open end, at least a portion of the first housing defining a receiving cavity that can accommodate at least a portion of the surface of the atomizer, and the atomizer is configured to be insertable into the receiving cavity from the open end in a first operating orientation and also to be insertable into the receiving cavity from the open end in a second operating orientation that is rotated by an angle relative to the first operating orientation along the axial direction of the atomizer. The power supply assembly is provided with an air inlet for external air to enter, and the atomizer is provided with an airflow channel connected to the air inlet; the aerosol generating device is configured to selectively engage with the power supply assembly in a first operating orientation or a second operating orientation, thereby adjusting the amount of air flowing through the airflow channel when the aerosol generating device is drawn in. The power assembly includes a bracket fixed inside the first housing; the atomizer includes an end cap; the bracket at least partially defines an air intake channel communicating with the air inlet; and the end cap at least partially defines the airflow channel. The bracket is provided with a sealing element, which, together with the end cap, defines a sealed air guide cavity; the air guide cavity connects the air intake channel and the airflow channel.

2. The aerosol generating apparatus as described in claim 1, characterized in that, The atomizer or power supply assembly is provided with a shielding component. When the atomizer is connected to the power supply assembly, the airflow channel is connected to the air inlet to form an airflow path for the airflow channel. The shielding component can selectively at least partially block the airflow path under different operating orientations to change the air inlet cross-sectional area of ​​the airflow path.

3. The aerosol generating apparatus as described in claim 2, characterized in that, The shield is located on the atomizer. When the atomizer is inserted into the receiving cavity in a first operating orientation, the shield is offset from the air intake channel on the power assembly. When the atomizer is inserted into the receiving cavity in a second operating orientation, the shield can block at least a portion of the air intake channel.

4. The aerosol generating apparatus as claimed in claim 3, wherein the air inlet channel includes at least two spaced-apart air inlets; when the atomizer is inserted into the receiving cavity in a second operating orientation, the shielding member blocks one of the air inlets.

5. The aerosol generating apparatus as described in claim 3, characterized in that, The air intake channel includes an elongated air intake hole; when the atomizer is inserted into the receiving cavity in a second operating orientation, the shielding member blocks a portion of the air intake hole.

6. The aerosol generating apparatus as described in claim 3, characterized in that, The atomizer has an end face that engages with the power supply assembly, and the shielding member includes a protrusion extending out of the end face.

7. The aerosol generating apparatus as described in claim 1, characterized in that, The airflow channel of the atomizer includes a first air inlet and a second air inlet; the cross-sectional area through which the airflow is allowed to pass through the first air inlet is different from the cross-sectional area through which the airflow is allowed to pass through the second air inlet; When the atomizer is inserted into the receiving cavity in a first operating orientation, the first air inlet communicates with the air inlet to form an airflow path for supplying airflow; when the atomizer is inserted into the receiving cavity in a second operating orientation, the second air inlet communicates with the air inlet to form an airflow path for supplying airflow.

8. The aerosol generating apparatus as described in claim 7, characterized in that, The atomizer has an end face that engages with a power supply assembly; the power supply assembly and the end face define a sealed air guide cavity, which is in fluid communication with the air inlet; when the atomizer is inserted into the receiving cavity with different operating orientations, one of the first air inlet and the second air inlet remains in fluid communication with the air guide cavity.

9. The aerosol generating apparatus according to any one of claims 3 to 8, characterized in that, The atomizer is generally flat, and the first operating orientation is rotated 180 degrees relative to the second operating orientation.

10. The aerosol generating apparatus as described in claim 1, characterized in that, The power supply assembly also includes an airflow sensing switch and an airflow detection channel connected to one end of the airflow sensing switch; when the atomizer is engaged with the power supply assembly in a first operating orientation and a second operating orientation, the airflow detection channel remains connected to the airflow channel.

11. The aerosol generating apparatus as described in claim 1, characterized in that, The bracket has a notch that connects the air intake channel and the air intake port.

12. The aerosol generating apparatus as described in claim 11, characterized in that, The air intake channel includes at least one air guide hole that passes through the bracket and the seal; the extension direction of the notch is perpendicular to the extension direction of the air guide hole.

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