Aerosol generating device

Abstract

The utility model discloses an aerosol generating device. The aerosol generating device comprises an outer shell, an inner shell and an inner shell, wherein an outer shell pressure relief opening is formed in the peripheral wall of the outer shell; the movable unit is arranged in the outer shell, and a movable unit pressure relief opening is formed in the peripheral wall of the movable unit; in a normal state, the movable unit is located at the first position, the outer shell pressure relief opening and the movable unit pressure relief opening are staggered in the first direction, and the peripheral wall of the movable unit blocks the outer shell pressure relief opening. In an abnormal state, the movable unit moves to a second position in the first direction under the action of abnormal pressure in the device, the outer shell pressure relief opening and the movable unit pressure relief opening have an overlapped part in the first direction, and the outer shell pressure relief opening and the movable unit pressure relief opening communicate with each other for pressure relief. The abnormal state is a state when the internal pressure of the device is abnormally increased. According to the device, the pressure relief opening can be blocked in a normal state, and water and dust are prevented; and when the battery is abnormal, the pressure relief ports can be automatically communicated, so that the pressure can be quickly relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of smoking articles, in particular to an aerosol generating device. Background Art

[0002] Electronic cigarettes and electrically heated cigarettes are both new tobacco products that are heated instead of burned during use, thus effectively avoiding the generation of harmful substances from high-temperature combustion.

[0003] Both electronic cigarettes and electric heated cigarettes require built-in batteries to provide energy to heat the e-liquid or heated cigarettes, and users place the mouthpiece in their mouths to inhale. Batteries are at risk of failure and explosion under some extreme working conditions (such as overcharging, over-discharging, etc.) or extreme environments (such as high temperature, etc.). This risk can be reduced by optimizing battery materials or structures, but it cannot be completely avoided.

[0004] In order to further ensure the safety of users, a pressure relief structure can be designed for the smoking device to facilitate pressure relief inside the smoking device when the battery explodes, thereby preventing adverse consequences caused by excessive internal pressure.

[0005] The pressure relief structure of the smoking device is not set randomly. GB 41700-2022 "Electronic Cigarettes" 5.1.6 Pressure Relief Safety clearly stipulates: "When the electronic cigarette smoking device causes internal pressure due to battery failure, the pressure relief direction should not be the same as the suction direction." Therefore, the design of the pressure relief structure should prevent the pressure relief direction from facing the user's mouth. In addition, since the daily state of smoking devices is also subject to waterproof and dustproof requirements, the pressure relief structure such as the pressure relief port may not be set too much or set to a larger size, and there are many restrictions on the location of the setting, which also limits the pressure relief efficiency of the smoking device.

[0006] On the other hand, the gases produced by the explosion have various movement directions. If the gases in various directions can be discharged as quickly as possible without affecting the waterproof and dustproof functions, the safety performance of the device can be further improved. Utility Model Content

[0007] In order to solve the above technical problems, the embodiment of the utility model discloses an aerosol generating device, which is characterized by comprising:

[0008] An outer shell, wherein the outer shell has a pressure relief port on its peripheral wall; a movable unit, wherein the movable unit is arranged in the outer shell, and the movable unit has a pressure relief port on its peripheral wall; when the aerosol generating device is in a normal state, the movable unit is located at a first position, and the outer shell pressure relief port and the movable unit pressure relief port are offset in a first direction, so that the peripheral wall of the movable unit blocks the outer shell pressure relief port; when the aerosol generating device is in an abnormal state, the movable unit moves along a first direction to a second position under the action of the abnormal internal pressure of the aerosol generating device, and the outer shell pressure relief port and the movable unit pressure relief port have an overlapping portion in the first direction, so that the outer shell pressure relief port is connected to the movable unit pressure relief port and pressure relief is performed, wherein the abnormal state is a state when the internal pressure of the aerosol generating device is abnormally increased.

[0009] By adopting the above technical solution, through the relative position setting of the outer shell and the movable unit, the peripheral wall of the movable unit can block the pressure relief port of the outer shell in the normal state, preventing the inside of the device from being connected to the outside world, and meeting the daily waterproof and dustproof needs. Even if the number of pressure relief ports is large or the size is large, the waterproof and dustproof effect can be guaranteed; and when the battery has an abnormal condition, the device can make full use of the environmental conditions under the abnormal condition, and through the automatic movement of the movable unit, the pressure relief ports of the outer shell and the movable unit are connected to each other, and the pressure is relieved to the outside world, which quickly reduces the internal pressure of the device and improves safety.

[0010] Optionally, in the second position, the outer shell pressure relief port completely overlaps with the movable unit pressure relief port.

[0011] Optionally, it also includes a first coupling unit and a second coupling unit, the first coupling unit having a first fixed end fixedly connected to the inside of the outer shell, and a first free end, the second coupling unit having a second fixed end fixedly connected to the movable unit, and a second free end, in the normal state, the first free end and the second free end abut against each other or have a gap in the first direction, in the abnormal state, the second coupling unit moves with the movable unit in the first direction, and when the movable unit moves to the second position, the first free end and the second free end cooperate with each other to keep the movable unit in the second position.

[0012] Optionally, the first free end and the second free end are magnetically attracted parts. In the normal state, the first free end and the second free end are spaced apart in the first direction. When the movable unit moves to the second position, the first free end and the second free end are magnetically connected.

[0013] Optionally, the first free end is a first hook portion, the second free end is a second hook portion, the first hook portion and the second hook portion are elastic, and when the movable unit moves to the second position, the first hook portion and the second hook portion engage with each other.

[0014] Optionally, the first return hook portion includes a first locking surface, the second return hook portion includes a second locking surface, and at least one of the first return hook portion and the second return hook portion further includes a sliding slope. When the movable unit moves to the second position, the sliding slope guides the second return hook portion to slide on the first return hook portion. When the movable unit moves to the second position, the first locking surface is in close contact with the second locking surface.

[0015] Optionally, the first return hook portion includes a first sliding slope, and the second return hook portion includes a second sliding slope. When the movable unit is in the first position, the first sliding slope and the second sliding slope abut against each other or have a gap. When the movable unit moves to the second position, the second sliding slope slides along the first sliding slope.

[0016] Optionally, the first and second coupling units respectively have a main body located between the return hook portion and the fixed end and extending along the first direction, and at least one of the first return hook portion and the second return hook portion also includes a stabilizing surface extending along the first direction, and when the movable unit moves to the second position, the stabilizing surface is in contact with the main body of the other of the first return hook portion and the second return hook portion.

[0017] Optionally, the second hook portion includes a second sliding inclined surface and a stabilizing surface extending along the first direction, the second engaging surface is perpendicular to the first direction, and the stabilizing surface is located between the second engaging surface and the second sliding surface and is connected to them.

[0018] Optionally, the aerosol generating device further comprises a spring, wherein the spring is located between the first fixed end and the second fixed end along the first direction.

[0019] Optionally, the aerosol generating device further comprises a fixing plate, one end of the spring is fixedly connected to the fixing plate, and the other end of the spring is fixedly connected to the movable unit.

[0020] Optionally, a stopper is further included for stopping the movable unit at a third position in the abnormal state, and in the first direction, the second position is located between the third position and the first position.

[0021] Optionally, the third position is located between the position of maximum compression of the spring and the second position, and the distance between the third position and the second position in the first direction is 0 to 6 mm.

[0022] Optionally, it also includes a battery and an aerosol matrix accommodating portion, and a partition is provided inside the outer shell, and the partition divides the inside of the outer shell into a first accommodating chamber and a second accommodating chamber along a first direction, the first accommodating chamber is used to accommodate the aerosol matrix accommodating portion, and the second accommodating chamber is used to accommodate the first joining unit, the second joining unit, the movable unit and the battery, wherein the abnormal state is a state of battery explosion, and the partition is used to block the airflow generated by the battery explosion.

[0023] Optionally, the aerosol generating device further comprises a battery, the movable unit comprises a buffer concave surface, the buffer concave surface is recessed relative to the battery, the recess has an opening, the opening becomes smaller along a second direction, and the second direction is a direction away from the battery.

[0024] Optionally, the abnormal state is a state of battery explosion, the buffer concave surface is a symmetrical arc surface or a symmetrical V-shaped surface that is recessed relative to the battery explosion point, and the opening gradually becomes smaller along the second direction.

[0025] Optionally, the aerosol generating device comprises a mouth end and an opposite end opposite to the mouth end along the first direction, and has an end cap, the end cap is located at the opposite end, and the end cap is detached from the aerosol generating device in the abnormal state.

[0026] Optionally, the end cover has an end cover pressure relief port, and the end cover pressure relief port is distributed on the edge of the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic perspective view showing the structure of the aerosol generating device in a normal state;

[0028] Figure 2 A schematic diagram showing the structure of the aerosol generating device after removing the outer shell;

[0029] Figure 3 A perspective diagram showing the disassembled structure of an aerosol generating device;

[0030] FIG4( a ) is an enlarged schematic diagram showing the structures of the first engaging unit and the second engaging unit when the movable unit is in the first position;

[0031] FIG4( b ) is an enlarged schematic diagram showing the first joining unit and the second joining unit when the movable unit is in the second position;

[0032] FIG5( a ) is a schematic diagram showing the internal structure of the movable unit when it is in the first position;

[0033] FIG5( b ) is a schematic cross-sectional view of FIG5( a ) along the aa direction;

[0034] FIG5( c ) is a schematic diagram showing the internal structure of the movable unit when it is in the second position;

[0035] Figure 6 An enlarged schematic diagram of the end cover structure of the aerosol generating device is shown.

[0036] 1. Aerosol generating device, 10. Outer shell, 101. Peripheral wall of outer shell, 102. Pressure relief port of outer shell, 20. Movable unit, 201. Peripheral wall of movable unit, 202. Pressure relief port of movable unit, 203. Buffer concave surface, 30. First joining unit, 301. First fixed end, 302. First hook back portion, 302a. First sliding slope, 302b. First engaging surface, 303. Main body, 40. Second joining unit, 401. Second fixed end, 402. Second hook back portion, 402a. Second sliding slope, 402b. Second engaging surface, 402c. Stable surface, 403. Main body, 50. Fixed plate, 60. Spring, 70. Battery, 80. Aerosol matrix accommodating portion, 90. End cover, 901. Pressure relief port of end cover

[0037] A. First direction, B. Second direction, C1. First accommodation chamber, C2. Second accommodation chamber, D1. First position, D2. Second position, P. Battery explosion point, M1. Mouth end, M2. Opposite end DETAILED DESCRIPTION

[0038] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0039] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0040] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0041] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication of units within two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0042] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] As attached Figure 1-3 , Figure 5(a) to Figure 5(c) As shown, the aerosol generating device 1 comprises an outer shell 10 and a movable unit 20, wherein the movable unit 20 is arranged in the outer shell 10, and pressure relief ports are provided on the peripheral wall 101 of the outer shell and the peripheral wall 201 of the movable unit, namely, the outer shell pressure relief port 102 and the movable unit pressure relief port 202. There is no particular restriction on the shape and number of the pressure relief ports. Preferably, the outer shell pressure relief ports 102 and the movable unit pressure relief ports 202 are equal in number and have the same shape. For example, five rectangular pressure relief ports arranged along the axial direction of the device are provided on the peripheral wall of the outer shell, and another five rectangular pressure relief ports arranged along the axial direction are provided on the radially opposite side of the device, and the movable unit is also provided in the same manner.

[0044] When the aerosol generating device 1 is in a normal state, the movable unit is located at a first position D1. At this position, the outer shell pressure relief port 102 and the movable unit pressure relief port 202 are staggered in a first direction. The first direction is, for example, the axial direction of the aerosol generating device 1. Figure 1 and Figure 5(a) to Figure 5(c) That is, the outer shell pressure relief port 102 and the movable unit pressure relief port 202 are staggered in the first direction A. By this arrangement, the peripheral wall 201 of the movable unit can block the outer shell pressure relief port 102. At the same time, due to the intermittent staggered arrangement, in fact, Figure 1As shown, the peripheral wall 101 of the outer shell can also block the pressure relief port 202 of the movable unit. For an aerosol generating device, its peripheral wall often has a large area. If the pressure relief port is set on the peripheral wall, there are many options for the design of the pressure relief port. However, setting the pressure relief port on the peripheral wall increases the risk of water and dust entering the device, because the device is often placed horizontally somewhere when not in use. By blocking the outer shell 10 and the movable unit 20, especially the outermost outer shell pressure relief port 102 is blocked, it can be ensured that the pressure relief port is not connected to the outside world under normal conditions, ensuring the waterproof and dustproof effect of the device and preventing the normal use of the device from being affected. In an abnormal state, the movable unit 20 will move to the second position D2 along the first direction under the action of the abnormal internal pressure of the aerosol generating device 1. At this time, the outer shell pressure relief port 102 and the movable unit pressure relief port 202 have an overlapping portion in the first direction, so that the outer shell pressure relief port 102 and the movable unit pressure relief port 202 are connected and pressure is relieved. The so-called abnormal state is a state in which the internal pressure of the device is abnormally increased. For an aerosol generating device, the abnormal increase in internal pressure is mainly due to the failure and explosion of the battery. In this case, the movable unit 20 will be impacted by the abnormally high pressure inside the device and driven to move along the first direction, that is, the movable unit pressure relief port 202 begins to translate along the first direction, and gradually begins to overlap with the outer shell pressure relief port 102, and the two are connected to each other, so that the inside of the device is connected to the outside world, and the pressure can be relieved to the outside world. If the first direction is the axial direction of the device, the movable unit can be more easily driven by the airflow generated by the battery explosion, which is convenient for the pressure relief of the device.

[0045] Through the above arrangement, even if the pressure relief openings on the peripheral wall are designed to be larger or more in number, the device can be guaranteed to be waterproof and dustproof, and when pressure relief is required, the movable unit will automatically move under the drive of high pressure to allow the pressure relief opening to play a role and quickly relieve pressure. In addition, due to the need for miniaturization of the device, the distance between the peripheral wall of the outer shell and the battery may be short. When the battery explodes, the airflow generated by the explosion will impact the device in all directions, especially the airflow impact toward the peripheral wall will be relatively large. The pressure relief opening can timely discharge the airflow impacting the peripheral wall of the outer shell to prevent the outer shell from rupturing, further improving safety.

[0046] Preferably, in the second position D2, the outer shell pressure relief port 102 and the movable unit pressure relief port 202 completely overlap, and pressure relief is performed at a maximum speed.

[0047] Continue to refer to the attached Figure 1-3 , and further combined with FIG. 4(a), FIG. 4(b), Figure 5(a) to Figure 5(c), the aerosol generating device 1 has a first joining unit 30 and a second joining unit 40. The first joining unit 30 has a first fixed end 301 fixedly connected to the inside of the outer shell 10, and a first free end; the second joining unit 40 has a second fixed end 401 fixedly connected to the movable unit 20, and a second free end. In a normal state, the first free end and the second free end abut against each other or have a gap in the first direction. In an abnormal state, the second joining unit 40 moves with the movable unit 20 in the first direction. When the movable unit 20 moves to the second position D2, the first free end and the second free end cooperate with each other to keep the movable unit 20 in the second position D2, maintaining efficient pressure relief. If at the second position D2, the outer shell pressure relief port 102 completely overlaps with the movable unit pressure relief port 202, the first joining unit 30 and the second joining unit 40 can ensure that the device is always in a state of maximum rate pressure relief.

[0048] According to a specific embodiment of the utility model, the first free end and the second free end are magnetic elements, and in a normal state, the magnetic elements are spaced apart in the first direction, and the distance between them can ensure that each is not affected by the attraction of the other. When the movable unit moves in an abnormal state, the distance between the magnetic elements becomes smaller, and they can be magnetically attracted to each other to keep the movable part in the second position.

[0049] According to a specific embodiment of the present invention, the first free end is the first return hook portion 302, and the second free end is the second return hook portion 402. As long as the return hook portions are engaged with each other, they cannot automatically disengage from the engaged state, thereby ensuring that the first engagement unit 30 and the second engagement unit 40 can function stably. In addition, the first return hook portion 302 and the second return hook portion 402 are elastic, so that the first return hook portion 302 and the second return hook portion 402 can be slightly displaced or offset relative to each other during the movement of the mobile unit 20, so as to engage with each other.

[0050] Specifically, the first joining unit 30 and the second joining unit 40 are both made of metal, specifically aluminum alloy.

[0051] Specifically, the first joining unit 30 and the second joining unit 40 are buckles that can be engaged with each other, and specifically, can be aluminum alloy buckles.

[0052] According to a specific embodiment of the present invention, referring to FIG. 4(a) and FIG. 4(b), the first return hook portion 302 includes a first engaging surface 302b, the second return hook portion 402 includes a second engaging surface 402b, and at least one of the first return hook portion 302 and the second return hook portion 402 also includes a sliding slope. When the movable unit 20 moves to the second position D2, the second return hook portion 402 will also move with the movable unit 20, and the sliding slope acts as a "track" to guide the second return hook portion 402 to slide on the first return hook portion 302, so as to facilitate the engagement between the return hook portions. When the movable unit 20 moves to the second position D2, the first engaging surface 302b and the second engaging surface 402b are in close contact with each other, and the engaging state is stable.

[0053] According to another specific embodiment of the utility model, in combination with FIG. 4(a) and FIG. 4(b), the first return hook portion 302 includes a first sliding slope 302a, and the second return hook portion 402 includes a second sliding slope 402a. When the movable unit 20 is in the first position D1, as shown in FIG. 4(a) and FIG. 5(a), the first sliding slope 302a and the second sliding slope 402a can abut against each other. When the movable unit moves to the second position D2, the second sliding slope 402a slides along the first sliding slope 302a. When the movable unit moves to the second position D2, as shown in FIG. 4(b) and FIG. 5(c), the first engaging surface 302b and the second engaging surface 402b are in close contact. In this way, the abutment stability of the return hook portion in a normal state is increased by surface contact, and the sliding of the sliding surface can ensure that the engaging process between the return hook portions in an abnormal state is smooth and barrier-free. At the same time, the movable unit can be stabilized in the second position by setting the engaging surface.

[0054] Furthermore, the first engaging unit 30 and the second engaging unit 40 respectively have main bodies 303 and 403 located between the return hook portion and the fixed end and extending along the first direction. For example, the main body 303 is located between the first return hook portion 302 and the first fixed end 301. At least one of the first return hook portion 302 and the second return hook portion 402 further includes a stabilizing surface extending along the first direction. When the movable unit 20 moves to the second position D2, the stabilizing surface fits with the main body of the other of the first return hook portion 302 and the second return hook portion 402, thereby further ensuring the engagement stability by increasing the contact area.

[0055] More specifically, as shown in FIG. 4(a) and FIG. 4(b), the second hook portion 402 includes a stabilizing surface 402c extending along the first direction A, the second engaging surface 402b is perpendicular to the first direction A, and the stabilizing surface 402c is located between the second engaging surface 402b and the second sliding inclined surface 402a and connected to them. When the movable unit 20 is in the second position D2, the stabilizing surface 402c is in contact with the main body 303. It can also be said that the second hook portion 402 is a polygonal prism structure integrally connected to the main body 403 as shown in FIG. 4(a) and FIG. 4(b), and the first hook portion 302 is a polygonal prism structure integrally connected to the main body 303. That is to say, as shown in FIG. 5(a) and FIG. 5(c), along the longitudinal direction of the device, the second hook portion 402 has a cross-section in the form of an inverted trapezoid, and the first hook portion 302 has a cross-section in the form of a right triangle. When the movable unit 20 is at the second position D2, as shown in FIG. 4( b ), the stabilizing surface 402 c and the main body 303 are in contact with each other, further increasing the engagement stability.

[0056] According to a specific implementation of the present utility model, Figure 1-3 and Figure 5(a) to Figure 5(c) The aerosol generating device 1 further includes a spring 60, which is located between the first fixed end 301 and the second fixed end 401 along the first direction. The spring 60 can be placed on the periphery of the first joining unit 30 and the second joining unit 40. If the joining unit has an internal space, the spring 60 can also be arranged in the internal space. The impact of battery explosion on the internal structure of the device is huge. The spring can buffer the impact on the joining unit, the movable unit and other structures, and ensure that the relevant structures can function stably.

[0057] The spring 60 can also help the movable unit 20 to move to the position in time, so that the joint unit can play a role quickly. The joint unit is set to be engaged when the movable unit 20 moves to the second position D2. If the movable unit 20 passes the second position D2 under the impact of the explosion, the first joint unit 30 and the second joint unit 40 will not be engaged, and the movable unit 20 cannot quickly stabilize in the second position D2. Even in some extreme cases, the pressure relief port may change from the misaligned state in the normal state to another misaligned state, that is, the outer shell pressure relief port 102 and the movable unit pressure relief port 202 cannot be connected in time, affecting the pressure relief. By adding the spring 60, when the movable unit 20 moves excessively, the spring 60 is compressed and has a tendency to return to the original state. Due to the characteristics of the spring 60, the greater the explosion impact, the greater the tendency, so that the movable unit 20 is subjected to resistance to movement. In the process of the spring 60 returning to its original state, the spring 60 pushes the movable unit 20 back to the second position D2, and the first joint unit 30 and the second joint unit 40 are engaged, thereby stabilizing the pressure relief. That is to say, the spring 60 can assist the movable unit 20 to quickly move into position, and is the "insurance" for the accurate functioning of the engaging unit, thereby accelerating the process of the engaging unit functioning.

[0058] Preferably, when the movable unit 20 is in the first position D1, the spring 60 is in a non-deformed state; when the spring 60 is compressed to the maximum compression amount, the spring 60 is in the second position D2. This arrangement can ensure the stability of the spring 60 in a normal state and maintain a pressure relief state in an abnormal state.

[0059] Further, in certain embodiments, Figure 1-3 and Figure 5(a) to Figure 5(c) The aerosol generating device 1 also includes a fixed plate 50, one end of the spring 60 is fixedly connected to the fixed plate 50, and the other end is fixedly connected to the movable unit 20. If the movable unit 20 moves excessively in an abnormal state, the spring 60 can more reliably give the movable unit 20 a driving force to return to the optimal position. In addition, it can be imagined that when designing the device, the movable unit 20 fits tightly against the peripheral wall of the outer shell 10 and has a large friction with each other, so as to ensure that the movable unit 20 will only move in extreme cases such as battery explosion. In addition, the fixed connection at both ends of the spring 60 can also provide support force for the movable unit 20, further preventing the movable unit 20 from moving when pressure relief is not required. Specifically, refer to Figure 1 , Figure 5(a) to Figure 5(c)When the movable unit 20 is located at the first position D1, the spring 60 is in a natural state without deformation. When the movable unit 20 is located on the right side of the first position D1, the spring 60 is stretched. When the movable unit 20 is located on the left side of the first position D1, the spring 60 is compressed. In this way, the movable unit 20 can be pulled back or pushed back to the first position D1 by the characteristic of the spring 60 restoring deformation, further ensuring that the movable unit 20 can be stably located at the first position D1 under normal conditions. For example, when the device 1 falls vertically from a high place, the above-mentioned setting can prevent the displacement of the movable unit 20 and ensure the normal use of the device 1.

[0060] According to another specific embodiment of the utility model, the aerosol generating device 1 further includes a stopper (not shown in the figure), which is used to stop the movable unit 20 at a third position (not shown in the figure) in an abnormal state, and the second position D2 is located between the third position and the first position D1 in the first direction A. In fact, due to the presence of the spring 60, the movable unit 20 cannot continue to move due to the obstruction of the spring 60, and the stopper can also serve as another guarantee to stop the movable unit 20 in time when the spring 60 cannot function.

[0061] Furthermore, the third position is located between the position of maximum spring compression (not shown in the figure) and the second position D2. The so-called position of maximum spring compression is the farthest position that the movable unit 20 moves in the first direction after being impacted. When the movable unit 20 is located at this position, the spring 60 has been compressed to the maximum deformation and cannot be further compressed. Specifically, the distance between the third position and the second position D2 is 0 to 6 mm. Among them, when the distance between the third position and the second position D2 is 0, the third position coincides with the second position D2, and the stopper stops the movable unit 20 at the second position D2.

[0062] As mentioned above, if the movable unit 20 moves excessively, it can be pushed back to the appropriate position, such as the second position D2, by the spring 60 that restores the original state. In this process, the spring 60 may be compressed to the maximum compression amount first, and then rebound from the maximum compression amount, that is, it still takes a certain amount of time for the spring 60 to take effect. By adding a stopper, the movable unit 20 can be prevented from crossing the third position. The movable unit 20 will no longer move when it is stopped at the third position, and the spring 60 will not start to take effect when it is compressed to the maximum compression amount. After the movable unit 20 is stopped, it can be pushed back by the spring 60, and the third position is close to the second position D2. During the push-back process, the coupling unit quickly engages to ensure the pressure relief efficiency. At the same time, the spring 60 can buffer the impact on the stopper to prevent the stopper from being damaged. In a specific embodiment, the stopper can be directly set at the second position D2.

[0063] Preferably, the distance between the third position and the second position D2 in the first direction is 2 to 4 mm. That is to say, the movable unit 20 reaches the third position after passing the second position 2 to 4 mm, and is stopped at the third position by the stopper. At this time, the spring 60 is not compressed to the maximum compression amount. The movable unit 20 is first stopped at the third position slightly beyond the second position D2, and then can be instantly rebounded to the second position D2 by the spring 60. This process is relatively gentle, and the impact between the coupling units is small, which further ensures that the coupling units can be reliably engaged. The pressure relief port is always connected during this process.

[0064] According to another specific embodiment of the present invention, Figure 1 and Figure 5(a) to Figure 5(c) The aerosol generating device 1 includes a battery 70 and an aerosol matrix containing part 80. The aerosol matrix containing part 80 can be a cigarette cartridge or a cigarette cartridge. The battery 70 can be fixed to the rear of the device with tape or glue. At the same time, the battery 70 can be partially or completely located in the movable unit 20. Since the internal space of the device is small, part of the peripheral wall 201 of the movable unit can be cut to make room for accommodating the battery 70, so as to facilitate the installation of the battery 70. A partition is provided inside the outer shell 10, and the partition divides the interior of the outer shell 10 into a first accommodating chamber C1 and a second accommodating chamber C2 along the first direction A. The first accommodating chamber C1 is used to accommodate the aerosol matrix containing part 80, and the second accommodating chamber C2 is used to accommodate the first joining unit 30, the second joining unit 40, the movable unit 20, and the battery 70. The abnormal state of the device 1 is the state of the battery 70 exploding, and the partition is used to block the airflow generated by the explosion of the battery 70.

[0065] In a specific embodiment of the present invention, the fixing plate 50 has the function of dividing the internal space of the outer shell, that is, the fixing plate 50 is a partition.

[0066] The partition can prevent the airflow from flowing to the first accommodating chamber C1, and further prevent the airflow from impacting the user, thereby improving safety. Preferably, the partition is a metal baffle, which is welded to the outer shell 10, for example, it can be an aluminum alloy baffle, and the aluminum alloy baffle has sufficient strength to withstand impact force. More preferably, the outer shell 10 is a metal shell, for example, the outer shell 10 is an aluminum alloy shell, and the partition is an aluminum alloy baffle. The two are designed as one body, and the baffle has a stronger resistance. In addition, according to the above embodiment, the spring 60 can also buffer the impact on the partition.

[0067] According to another specific embodiment of the present invention, Figure 1 , Figure 3 , Figure 5(a) to Figure 5(c)The movable unit 20 has a buffer concave surface 203, which is concave relative to the battery 70, and has an opening, and the opening becomes smaller along the second direction B, which is the direction away from the battery. In an abnormal state, such as when the battery explodes, part of the airflow generated by the explosion will move along the second direction B. When they hit the buffer concave surface 203, the impact of the airflow causes the movable unit 20 to move. At the same time, part of the airflow is reflected by the buffer concave surface after the collision and changes the direction of movement, and no longer continues to move along the second direction B, reducing the risk of releasing pressure toward the user and causing the cigarette cartridge or cigarette chamber to pop out and injure the user.

[0068] Specifically, Figure 1 , Figure 3 , Figure 5(a) to Figure 5(c) As shown, in the first direction A, the movable unit 20 is disposed between the partition and the battery 70, and the buffer concave surface 203 blocks and weakens the explosion airflow to prevent excessive airflow from impacting the partition.

[0069] Preferably, the buffer concave surface 203 is a symmetrical arc surface or a symmetrical V-shaped surface that is concave relative to the battery explosion point P, and the concave opening gradually becomes smaller along the second direction B. As shown in Figure 5(c), when the buffer concave surface 203 is a symmetrical arc surface or a symmetrical V-shaped surface, the buffer concave surface 203 will reflect part of the airflow moving along the second direction B. The reflected airflow may be perpendicular to the second direction B and move radially inward. As shown by arrows L1 and L2 in Figure 5(c), the airflow originally moving along the second direction B changes its direction of movement after contacting the buffer concave surface 203, and due to the symmetrical structure of the buffer concave surface 203, the airflow has a part that moves radially inward toward the device after reflection, and this part can offset each other, reducing the burden of pressure relief and helping to quickly relieve pressure. In addition, the airflow may be reflected by the buffer concave surface 203 multiple times, and the impact force is gradually weakened during the multiple reflections.

[0070] According to another embodiment of the present invention, Figure 1-3 , Figure 5(a) to Figure 5(c) The aerosol generating device 1 also includes a mouth end M1 and an opposite end M2 opposite to the mouth end along the first direction A. The aerosol generating device 1 has an end cover 90, and the end cover 90 is located at the opposite end M2. If the battery 70 has a pressure relief valve or a safety valve, it should be placed in a direction aligned with the end cover 90 as much as possible. The end cover 90 can be adhered to the outer shell 10 by glue, or connected to the outer shell 10 by interference fit. The specific connection method is not particularly limited. When the device 1 is in an abnormal state, the end cover 90 will also be impacted by the explosion airflow, so that it will fall out from the opposite end M2. After it falls out, the opening at this position can be used as a pressure relief port for pressure relief.

[0071] Further integration Figure 6, the end cover 90 has an end cover pressure relief port 901, and may also be provided with a charging port. The end cover pressure relief ports 901 are distributed at the edge of the end cover 90, specifically, distributed around the end cover 90. For example, four end cover pressure relief ports 901 may be provided at the edge of the end cover 90, with a difference of 90 degrees between adjacent pressure relief ports relative to the center of the end cover 90. Since the end cover pressure relief ports 901 are distributed around the end cover 90, the stress on the end cover 90 will be concentrated around, and the connection parts where the end cover 90 is connected to the outer shell 10 around are relatively weak parts, so it is easy to open the end cover 90 when the impact force is large, thereby releasing the impact energy faster.

[0072] Further combined with Figure 5(c), when the battery 70 explodes, it will generate strong impact airflow in all directions, wherein the airflow moving along the second direction B drives the movable unit 20 to move, so that the outer shell pressure relief port 102 and the movable unit pressure relief port 202 are connected, and the airflow radially outward along the device 1 is released. The engagement of the first coupling unit 30 and the second coupling unit 40 keeps the movable unit 20 in the second position, and the spring 60 and the stopper (not shown in the figure) can also further improve the reliability of the movable unit 20. The buffer concave surface 203 can also reflect and eliminate part of the airflow. At the same time, the partition can block the airflow from moving toward the first accommodating chamber C1, avoid pressure relief toward the user, and improve the safety of the device. Further, the end cover 90 can release the airflow moving in the opposite direction toward the second direction B. The structure of the device adopts a strategy combining "blocking", "eliminating" and "dispersing" for the impact force generated by the explosion. The airflow toward the user's mouth is "blocked" by the partition, and a "dispersing" strategy is adopted for the airflow moving radially outward along the device and in the opposite direction of the second direction B. Part of the airflow is "eliminated" by the buffer concave surface 203, and different measures are taken for airflow in different directions. At the same time, rapid pressure relief is carried out through various pressure relief ports, thereby reducing the risk of human injury and improving product compliance.

[0073] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An aerosol generating device, characterized in that: include: An outer shell, wherein the outer shell has an outer shell pressure relief port disposed on its peripheral wall; A movable unit, wherein the movable unit is arranged in the outer shell, and a movable unit pressure relief port is arranged on a peripheral wall of the movable unit; When the aerosol generating device is in a normal state, the movable unit is located at a first position, the outer shell pressure relief port and the movable unit pressure relief port are staggered in a first direction, so that the peripheral wall of the movable unit blocks the outer shell pressure relief port; When the aerosol generating device is in an abnormal state, the movable unit moves along the first direction to the second position under the action of the abnormal internal pressure of the aerosol generating device, and the outer shell pressure relief port and the movable unit pressure relief port have an overlapping portion in the first direction, so that the outer shell pressure relief port and the movable unit pressure relief port are connected and pressure is relieved, wherein the abnormal state is a state when the internal pressure of the aerosol generating device increases abnormally.

2. The aerosol generating device according to claim 1, characterized in that In the second position, the pressure relief port of the outer shell completely overlaps with the pressure relief port of the movable unit.

3. The aerosol generating device according to claim 1, characterized in that Also includes a first joining unit and a second joining unit, The first engaging unit has a first fixed end fixedly connected to the inside of the outer shell, and a first free end, and the second engaging unit has a second fixed end fixedly connected to the movable unit, and a second free end. In the normal state, the first free end and the second free end abut against each other or have a gap in the first direction. In the abnormal state, the second engaging unit moves with the movable unit in the first direction, and when the movable unit moves to the second position, the first free end and the second free end cooperate with each other to keep the movable unit at the second position.

4. The aerosol generating device according to claim 3, characterized in that The first free end and the second free end are magnetically attracted parts. In the normal state, the first free end and the second free end are spaced apart in the first direction. When the movable unit moves to the second position, the first free end and the second free end are magnetically connected.

5. The aerosol generating device according to claim 3, characterized in that The first free end is a first return hook portion, the second free end is a second return hook portion, the first return hook portion and the second return hook portion are elastic, and when the movable unit moves to the second position, the first return hook portion and the second return hook portion are engaged with each other.

6. The aerosol generating device according to claim 5, characterized in that The first return hook portion includes a first locking surface, the second return hook portion includes a second locking surface, and at least one of the first return hook portion and the second return hook portion also includes a sliding slope. When the movable unit moves to the second position, the sliding slope guides the second return hook portion to slide on the first return hook portion. When the movable unit moves to the second position, the first locking surface is in close contact with the second locking surface.

7. The aerosol generating device according to claim 6, characterized in that The first return hook portion includes a first sliding slope, and the second return hook portion includes a second sliding slope. When the movable unit is in the first position, the first sliding slope and the second sliding slope abut against each other or have a gap. When the movable unit moves to the second position, the second sliding slope slides along the first sliding slope.

8. The aerosol generating device according to claim 6, characterized in that The first and second coupling units respectively have a main body portion located between the return hook portion and the fixed end and extending along the first direction. At least one of the first return hook portion and the second return hook portion also includes a stabilizing surface extending along the first direction. When the movable unit moves to the second position, the stabilizing surface is in contact with the main body portion of the other of the first return hook portion and the second return hook portion.

9. The aerosol generating device according to claim 8, characterized in that The second hook portion includes a second sliding inclined surface and a stabilizing surface extending along the first direction, the second engaging surface is perpendicular to the first direction, and the stabilizing surface is located between the second engaging surface and the second sliding inclined surface and is connected to them.

10. The aerosol generating device according to claim 3, wherein: The aerosol generating device further includes a spring, wherein the spring is located between the first fixing end and the second fixing end along the first direction.

11. The aerosol generating device according to claim 10, characterized in that The aerosol generating device further comprises a fixing plate, one end of the spring is fixedly connected to the fixing plate, and the other end of the spring is fixedly connected to the movable unit.

12. The aerosol generating device according to claim 10, wherein: A stopper is also included for stopping the movable unit at a third position in the abnormal state, and the second position is located between the third position and the first position in the first direction.

13. The aerosol generating device according to claim 12, wherein: The third position is located between the maximum compression position of the spring and the second position, and the distance between the third position and the second position in the first direction is 0 to 6 mm.

14. The aerosol generating device according to claim 3, wherein: It also includes a battery and an aerosol matrix accommodating portion, and a partition is provided inside the outer shell, and the partition divides the inside of the outer shell into a first accommodating chamber and a second accommodating chamber along the first direction, the first accommodating chamber is used to accommodate the aerosol matrix accommodating portion, and the second accommodating chamber is used to accommodate the first joining unit, the second joining unit, the movable unit and the battery, wherein the abnormal state is a state of battery explosion, and the partition is used to block the airflow generated by the battery explosion.

15. The aerosol generating device according to claim 1, wherein: The aerosol generating device further comprises a battery. The movable unit comprises a buffer concave surface, the buffer concave surface is recessed relative to the battery, the recess has an opening, and the opening becomes smaller along a second direction, and the second direction is a direction away from the battery.

16. The aerosol generating device according to claim 15, characterized in that The abnormal state is a state of battery explosion, the buffer concave surface is a symmetrical arc surface or a symmetrical V-shaped surface that is concave relative to the battery explosion point, and the opening gradually becomes smaller along the second direction.

17. The aerosol generating device according to claim 1, wherein: The aerosol generating device comprises a mouth end and an opposite end opposite to the mouth end along the first direction, the aerosol generating device has an end cap, the end cap is located at the opposite end, and the end cap is detached from the aerosol generating device in the abnormal state.

18. The aerosol generating device according to claim 17, wherein: The end cover has an end cover pressure relief port, and the end cover pressure relief port is distributed on the edge of the end cover.

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