Aerosol generating device and aerosol generating system

Abstract

Provided are an aerosol generating device and an aerosol generating system. The aerosol generating device includes: a housing assembly, having an accommodating cavity, where the accommodating cavity is used for accommodating an aerosol generating article; and a laser module, disposed on one side of the accommodating cavity, where the laser module is configured to be capable of rotating around the accommodating cavity, to heat the aerosol generating article within the accommodating cavity in different directions. According to the aerosol generating device, the aerosol generating article is heated in a laser heating manner without the need of rotation of the aerosol generating article, to generate an aerosol.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Chinese Patent Application No. 2023110519786, filed on August 18, 2023, which is incorporated herein by reference in its entirety.TECHNICAL FIELD

[0002] This application relates to the technical field of atomization, and particularly, to an aerosol generating device and an aerosol generating system.BACKGROUND

[0003] A heat-not-burning (HNB) aerosol generating system is a combined apparatus of an aerosol generating device and an aerosol generating article. The aerosol generating article is accommodated within the aerosol generating device, and the aerosol generating article contains an aerosol generating substrate. The aerosol generating device heats the aerosol generating substrate to the temperature sufficient to generate an aerosol, yet insufficient for burning, thereby allowing the aerosol generating substrate to generate a desired aerosol for a user without burning.

[0004] However, in the existing aerosol generating system, a number of puffs from a single aerosol generating article is small.SUMMARY

[0005] This application provides an aerosol generating device and an aerosol generating system, to mainly solve the problem that in an existing aerosol generating system, a number of puffs from a single aerosol generating article is small.

[0006] To resolve the foregoing technical problem, a technical solution adopted in this application is to provide an aerosol generating device. The aerosol generating device includes: a housing assembly, having an accommodating cavity, where the accommodating cavity is used for accommodating an aerosol generating article; and a laser module, disposed on one side of the accommodating cavity, where the laser module is configured to be capable of rotating around the accommodating cavity, to heat the aerosol generating article within the accommodating cavity in different directions.

[0007] In an embodiment, the housing assembly includes an outer housing and a heat dissipation member disposed within the outer housing. The heat dissipation member is a hollow cylindrical structure, and the accommodating cavity is formed inside the heat dissipation member. The heat dissipation member is configured to be capable of rotating relative to the outer housing about the central axis of the accommodating cavity. The laser module is disposed on the inner side wall of the heat dissipation member and is configured to be capable of rotating with the heat dissipation member.

[0008] In an embodiment, the housing assembly further includes a transmission gear and a driving member. The transmission gear is connected to the heat dissipation member; and the driving member is meshed with the transmission gear and is used for driving the transmission gear to rotate, so as to drive the heat dissipation member to rotate.

[0009] In an embodiment, the heat dissipation member includes a plurality of heat dissipation portions. The plurality of heat dissipation portions are distributed in a circumferential direction of the heat dissipation member, and every two adjacent heat dissipation portions are detachably connected.

[0010] In an embodiment, the inner surface of the heat dissipation member has a groove, and the laser module is disposed in the groove.

[0011] In an embodiment, the groove extends in a central axis direction of the accommodating cavity; and the laser module includes one laser emitting area that extends in the center axis direction of the accommodating cavity, or includes a plurality of laser emitting areas that are disposed at intervals in the center axis direction of the accommodating cavity.

[0012] In an embodiment, the housing assembly further includes a light transmitting tube. The light transmitting tube is sleeved inside the heat dissipation member, and the inner cavity of the light transmitting tube is used for accommodating the aerosol generating article; and the laser module is located between the light transmitting tube and the heat dissipation member.

[0013] In an embodiment, the inner surface and / or the outer surface of the side wall of the light transmitting tube is provided with an antireflection film.

[0014] In an embodiment, the housing assembly further includes a rolling member. The rolling member is disposed between the outer surface of the heat dissipation member and the inner surface of the outer housing, at least one of the outer surface of the heat dissipation member and the inner surface of the outer housing has a sliding groove, and the rolling member is embedded within the sliding groove.

[0015] In an embodiment, the housing assembly further includes an upper bracket. The upper bracket is connected to the outer housing and is located on the side, facing a cavity opening of the accommodating cavity, of the heat dissipation member.

[0016] One of the upper bracket and the heat dissipation member has a circumferential sliding groove, and the other of the upper bracket and the heat dissipation member has a circumferential protrusion that matches the circumferential sliding groove. The circumferential protrusion is embedded within the circumferential sliding groove and is capable of sliding in an extension direction of the circumferential sliding groove.

[0017] In an embodiment, the aerosol generating device further includes a power supply assembly. The power supply assembly is disposed within the housing assembly and is electrically connected to the laser module. The power supply assembly is configured to maintain electrical connection with the laser module during rotation of the laser module about the central axis of the accommodating cavity.

[0018] In an embodiment, the power supply assembly includes a main bracket, a control circuit board, and a connection circuit board. The main bracket is matched with the outer housing to form a receiving cavity, and the heat dissipation member is rotatably disposed within the receiving cavity.

[0019] The connection circuit board is disposed on the bottom surface of the heat dissipation member and is electrically connected to the laser module. The surface, facing away from the heat dissipation member, of the connection circuit board has a first annular electrode, and the bottom surface of the receiving cavity has an electrode contact that is electrically connected to the control circuit board. The connection circuit board is configured to be capable of rotating with the heat dissipation member and maintaining contact and electrical connection between the first annular electrode in contact and the electrode contact.

[0020] Alternatively, the connection circuit board is disposed on the bottom surface of the receiving cavity and is electrically connected to the control circuit board. The surface, facing the heat dissipation member, of the connection circuit board has a second annular electrode, and the bottom surface of the heat dissipation member has an electrode contact that is electrically connected to the laser module. The heat dissipation member is configured to be capable of rotating relative to the connection circuit board and maintaining contact and electrical connection between the electrode contact and the second annular electrode.

[0021] Alternatively, the connection circuit board includes an upper circuit board and a lower circuit board. The upper circuit board is disposed on the bottom surface of the heat dissipation member and is electrically connected to the laser module, and the surface, facing away from the heat dissipation member, of the upper circuit board has a first annular electrode. The lower circuit board is disposed on the bottom surface of the receiving cavity and is electrically connected to the control circuit board, and the surface, facing the heat dissipation member, of the lower circuit board has a second annular electrode. The upper circuit board is configured to be capable of rotating with the heat dissipation member relative to the lower circuit board and maintaining contact and electrical connection between the first annular electrode and the second annular electrode.

[0022] In an embodiment, the power supply assembly further includes a battery. The battery is disposed on the main bracket and is electrically connected to the control circuit board. The aerosol generating device further includes a motor. The aerosol generating device further includes a driving member. The driving member is connected to the heat dissipation member and is electrically connected to the control circuit board. The control circuit board is used for controlling the laser module to heat the aerosol generating article, and controlling the driving member to drive the heat dissipation member to rotate, so as to enable the laser module to heat the aerosol generating article in different directions.

[0023] In an embodiment, the thickness of the side wall of the heat dissipation member is greater than or equal to 2 mm; and the unit heat dissipation volume of the heat dissipation member is 100-500 mm 3< .

[0024] To resolve the foregoing technical problem, another technical solution adopted in this application is to provide an aerosol generating system. The aerosol generating system includes an aerosol generating article and the foregoing related aerosol generating device.

[0025] Compared with the prior art, embodiments of this application achieve the following different beneficial effects: The aerosol generating device provided in embodiments of this application includes: the housing assembly, having the accommodating cavity, where the accommodating cavity is used for accommodating an aerosol generating article; and the laser module, disposed on one side of the accommodating cavity, where the laser module is configured to be capable of rotating around the accommodating cavity, to heat the aerosol generating article within the accommodating cavity in different directions. This can ensure that every position of the aerosol generating article in a circumferential direction of the aerosol generating article can be uniformly heated and atomized, to improve utilization of the aerosol generating article, thereby increasing a number of puffs from the aerosol generating article. In addition, the aerosol generating article does not need to rotate, which is compatible with the conventional solution in which the aerosol generating article does not rotate in a user inhalation process, thereby exhibiting good applicability.BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG. 1 is a schematic diagram of an internal structure of an aerosol generating system according to an embodiment of this application; FIG. 2 is a sectional view of an aerosol generating system in a direction A-A according to an embodiment of this application; FIG. 3 is a schematic structural diagram of an aerosol generating device in FIG. 2; FIG. 4 is a schematic diagram of an overall structure of a heat dissipation member; FIG. 5 is a cross-sectional view of the heat dissipation member shown in FIG. 4; FIG. 6 is another schematic diagram of an overall structure of a heat dissipation member; FIG. 7 is a schematic structural diagram of a laser module disposed at a heat dissipation portion; FIG. 8 is a schematic diagram of an overall structure of a laser module; FIG. 9 is a sectional view of an aerosol generating system in a direction A-A according to another embodiment of this application; FIG. 10 is a schematic structural diagram of an aerosol generating device in FIG. 9; FIG. 11 is an enlarged view of a position B in FIG. 10; FIG. 12 is a schematic diagram of an overall upper bracket according to an embodiment; FIG. 13 is a schematic structural diagram of a first surface of an upper circuit board; FIG. 14 is a schematic structural diagram of a second surface of an upper circuit board; FIG. 15 is a schematic structural diagram of a first surface of a lower circuit board; and FIG. 16 is a schematic structural diagram of a second surface of a lower circuit board. Descriptions of reference numerals:

[0027] 1: aerosol generating article; 2: aerosol generating device; 20: outer housing; 21: accommodating cavity; 22: light transmitting tube; 23: heat dissipation member; 231: groove; 232: third sliding groove; 233: fourth sliding groove; 234: heat dissipation portion; 24: rolling member; 25: laser module; 251: laser emitting area; 252: positive and negative electrode pad; 26: upper circuit board; 261: first pin; 262: first annular electrode; 27: lower circuit board; 271: second annular electrode; 272: second pin; 28: main bracket; 29: upper bracket; 291: circumferential protrusion; 30: transmission gear; 31: motor; 32: battery; and 33: control circuit board. DETAILED DESCRIPTION

[0028] The technical solutions in embodiments of this application are clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the embodiments described are merely some embodiments rather than all embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the scope of protection of this application.

[0029] The terms "first", "second", and "third" in this application are merely for the descriptive purpose, and shall not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of this application, "a plurality of" means at least two, such as two or three, unless otherwise definitely and specifically defined. All directional indications (such as upper, lower, left, right, front, and rear) in the embodiments of this application are merely used for explaining relative position relationships, movement situations, or the like between various components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications change correspondingly. In addition, the terms "comprise", "have", and any variations thereof are intended to cover the non-exclusive inclusion. For example, a process, method, system, product, or apparatus including a series of steps or units is not limited to steps or units listed, but further optionally includes steps or units not listed, or further optionally includes other steps or units inherent to the process, method, product, or apparatus.

[0030] The "embodiment" mentioned herein indicates that particular features, structures, or characteristics described with reference to the embodiment can be included in at least one embodiment of this application. The phrase appearing at various positions in the specification unnecessarily indicates a same embodiment or an independent or alternative embodiment exclusive to other embodiments. Those skilled in the art explicitly or implicitly understands that the embodiments described herein can be combined with other embodiments.

[0031] In the related technology of an aerosol generating system, to increase a number of puffs from a single aerosol generating article, the cross-section of the aerosol generating article is usually designed to be circular, and the aerosol generating article can rotate relative to an aerosol generating device. However, in this solution, it may be seen that the aerosol generating article rotates in a user experience process, which is significantly different from the conventional solution in which the aerosol generating article does not rotate in a user inhalation process, and some users may therefore be not adaptable to the aerosol generating system.

[0032] In view of this, embodiments of this application provide an aerosol generating system. According to the aerosol generating system, a heating assembly used for heating an aerosol generating article rotates relative to the aerosol generating article. This can increase a number of puffs from a single aerosol generating article. In addition, the aerosol generating article does not need to rotate. In this way, the problem that in the existing aerosol generating system, the aerosol generating article rotates in a user experience process, which is significantly different from the conventional solution in which the aerosol generating article does not rotate in a user inhalation process, and some users may therefore be not adaptable to the aerosol generating system, is solved.

[0033] The following describes this application in detail with reference to the accompanying drawings and embodiments.

[0034] Refer to FIG. 1. FIG. 1 is a schematic diagram of an internal structure of an aerosol generating system according to an embodiment of this application; FIG. 2 is a sectional view of an aerosol generating system in a direction A-A according to an embodiment of this application; and FIG. 3 is a schematic structural diagram of an aerosol generating device in FIG. 2. In this embodiment, an aerosol generating system is provided. The aerosol generating system includes an aerosol generating article 1 and an aerosol generating device 2.

[0035] The aerosol generating article 1, as an encapsulated atomized substrate, includes an aerosol generating substrate. The aerosol generating substrate is partially or entirely used for generating an aerosol when heated to 200-500°C. The aerosol generating substrate may be a solid substrate, and may include one or more of powder, particles, shreds, strips, or flakes of one or more of plant leaves such as tobacco, herbal leaves, tea leaves, or mint leaves. Alternatively, the solid substrate may include an additional volatile aroma compound which is released upon heating of the substrate. Of course, the aerosol generating substrate may alternatively include a liquid substrate or a paste substrate, such as an oil or medical liquid added with an aroma component. For a specific structure and function of the aerosol generating article 1, refer to an existing aerosol generating article. Details are not described herein again.

[0036] The aerosol generating device 2 is used for heating the aerosol generating article 1 to generate an aerosol for user inhalation. For a specific structure and function of the aerosol generating device 2, refer to related descriptions about the aerosol generating device 2 in the following embodiments.

[0037] With reference to FIG. 2 and FIG. 3, in this embodiment, an aerosol generating device 2 is provided. The aerosol generating device 2 includes a housing assembly and a laser module 25. The housing assembly has an accommodating cavity 21, and an aerosol generating article 1 is accommodated within the accommodating cavity 21. The laser module 25 is disposed on one side of the accommodating cavity 21, and is used for emitting laser to heat the aerosol generating article 1 within the accommodating cavity 21. In a specific embodiment, the laser module 25 is configured to be capable of rotating around the accommodating cavity 21, to heat the aerosol generating article 1 within the accommodating cavity 21 in different directions in a circumferential direction of the aerosol generating article 1, to uniformly generate an aerosol. A cross-section of the accommodating cavity 21 at any position in a depth direction of the accommodating cavity is symmetric about the central axis. The laser module 25 may be specifically configured to rotate about the central axis M of the accommodating cavity 21. This application is described by using an example in which the accommodating cavity 21 is cylindrical. Of course, it may be understood that the accommodating cavity 21 may alternatively be of an irregular cavity structure. In this case, the axis passing through the center of a circle having the maximum diameter within a shape of the cross-section of the accommodating cavity 21 is used as a rotation axis, and the laser module 25 may be specifically configured to rotate about the rotation axis.

[0038] The laser module 25 used for heating the aerosol generating article 1 is configured to rotate about the central axis M of the accommodating cavity 21, which not only can ensure that every position of the aerosol generating article 1 in the circumferential direction of the aerosol generating article can be uniformly heated and atomized, so as to improve utilization of the aerosol generating article 1, thereby increasing a number of puffs from the aerosol generating article 1. In addition, the aerosol generating article 1 does not need to rotate, which is compatible with the conventional solution in which the aerosol generating article does not rotate in a user inhalation process, thereby exhibiting good applicability.

[0039] As shown in FIG. 3, the housing assembly includes an outer housing 20 and a heat dissipation member 23 disposed within the outer housing 20. The heat dissipation member 23 is used for absorbing waste heat during operation of the laser module 25, and fixing, supporting, and driving the laser module 25 to rotate. Specifically, the heat dissipation member 23 is a hollow cylindrical structure. A hollow structure inside the heat dissipation member 23 forms an accommodating cavity 21. The aerosol generating article 1 is accommodated within the accommodating cavity 21. The heat dissipation member 23 is configured to be capable of rotating relative to the outer housing 20 about the central axis M of the accommodating cavity 21. The laser module 25 is disposed on the inner side wall of the heat dissipation member 23 and is configured to be capable of rotating with the heat dissipation member 23, so as to heat the aerosol generating article 1 within the accommodating cavity 21 in different directions.

[0040] Specifically, the heat dissipation member 23 may be a hollow cylinder. Of course, the heat dissipation member may alternatively be in a hollow prism shape. The heat dissipation member 23 may be specifically a heat sink.

[0041] By rotating the heat dissipation member 23 relative to the outer housing 20, the laser module 25 also rotates with the heat dissipation member 23. This can not only achieve rotation of the laser module 25 relative to the central axis M of the accommodating cavity 21, but also achieve relative stationarity between the outer housing 20 and the aerosol generating article 1. Therefore, when a user uses the aerosol generating device 2, the aerosol generating article 1 appears stationary relative to the aerosol generating device 2 as viewed by the user, which is similar to the conventional inhalation solution, thereby exhibiting good applicability.

[0042] Refer to FIG. 4 and FIG. 5. In some embodiments, FIG. 4 is a schematic diagram of an overall structure of a heat dissipation member; and FIG. 5 is a cross-sectional view of the heat dissipation member shown in FIG. 4. The inner surface of the heat dissipation member 23, namely, the inner surface of the side wall of the accommodating cavity 21, has a groove 231, and the laser module 25 is specifically disposed within the groove 231. In this way, the laser module 25 may be protected through the groove 231.

[0043] Specifically, the groove 231 extends in a central axis direction Y of the accommodating cavity 21, the length of the groove 231 is greater than the length of the laser module 25, the width of the groove 231 is greater than the transverse width of the laser module 25, and the depth of the groove 231 is greater than the thickness of the laser module. This ensures that the entire laser module 25 is accommodated within the groove 231, that is, no end or position of the laser module 25 protrudes from space in which the groove 231 is located. Compared with a solution in which at least a part of the laser module 25 protrudes from the inner surface of the accommodating cavity 21, the laser module 25 does not affect insertion / removal of the aerosol generating article 1 and assembly of another component within the accommodating cavity 21. In addition, this can prevent the aerosol generating article 1 and another component within the accommodating cavity 21 from causing damage to the laser module 25.

[0044] The length of the groove 231 refers to the dimension of the groove 231 in the central axis direction Y of the accommodating cavity 21. The width of the groove 231 refers to the dimension of the groove 231 in a circumferential direction of the accommodating cavity 21. The depth of the groove 231 refers to the dimension of the groove 231 in a radial direction of the accommodating cavity 21. The length of the laser module 25 refers to the dimension of the laser module 25 in the central axis direction Y of the accommodating cavity 21. The width of the laser module 25 refers to the dimension of the laser module 25 in the circumferential direction of the accommodating cavity 21. The thickness of the laser module 25 refers to the dimension of the laser module 25 in the radial direction of the accommodating cavity 21.

[0045] For a specific embodiment, refer to FIG. 6 and FIG. 7. FIG. 6 is a schematic structural diagram of another overall structure of a heat dissipation member.

[0046] FIG. 7 is a schematic structural diagram of a laser module disposed at a heat dissipation portion. The heat dissipation member 23 includes a plurality of heat dissipation portions 234. The plurality of heat dissipation portions 234 are distributed in a circumferential direction of the heat dissipation member 23, and every two adjacent heat dissipation portions 234 are detachably connected. At least one of the plurality of heat dissipation portions 234 constituting the heat dissipation member 23 is used for assembling the laser module 25.

[0047] The heat dissipation portions 234 may be provided with a groove 231 for assembling the laser module 25. The groove 231 is arranged in the same manner as the foregoing groove 231. With a split structure of the heat dissipation member 23, during mounting of the laser module 25, the laser module 25 may be first mounted on one heat dissipation portion 234, and then other heat dissipation portions 234 and the heat dissipation portion 234 on which the laser module 25 is mounted are assembled together. Compared with an integrated heat dissipation member 23, such a configuration is more beneficial to mounting of the laser module 25. Specifically, after the laser module 25 is mounted, two adjacent heat dissipation portions 234 are then fixed through screws or soldering. Preferably, two heat dissipation portions 234 may be provided, which facilitates mounting of the laser module 25. Compared with a solution in which the heat dissipation member 23 includes more heat dissipation portions 234, the structure of the heat dissipation member 23 is simpler, thereby facilitating assembly, and reducing assembly time.

[0048] Specifically, the groove 231 penetrates through two end surfaces of the heat dissipation member 23 in the central axis direction Y of the accommodating cavity 21.

[0049] Specifically, the laser module 25 may be disposed within the groove 231 through soldering. Of course, the laser module 25 may alternatively be fixed in the groove 231 through a fastener. The fastener may be a screw, a clamp, or the like.

[0050] Refer to FIG. 8. FIG. 8 is a schematic diagram of an overall structure of a laser module. The laser module 25 includes one laser emitting area 251, or a plurality of laser emitting areas 251. The laser module 25 is used for converting electric energy into laser energy. The laser irradiates the aerosol generating substrate, to locally heat the aerosol generating substrate to the high temperature of 200-500°C, so as to generate an aerosol. The laser emitting area 251 extends in central axis direction Y of the accommodating cavity 21, and the plurality of laser emitting areas 251 are disposed at intervals in the central axis direction Y of the accommodating cavity 21 and are used for emitting laser to heat corresponding positions of the aerosol generating article 1. Specifically, the laser emitting area 251 provides the energy density of approximately 0.5 W / mm2 to the surface of the aerosol generating substrate of the aerosol generating article 1. After the laser module 25 is powered on, the plurality of laser emitting areas 251 are sequentially activated to irradiate and heat different positions of the aerosol generating substrate, thereby increasing a number of puffs from the aerosol generating article 1.

[0051] In this embodiment, the laser module 25 further includes a plurality of positive and negative electrode pads 252. Every two positive and negative electrode pads 252 form a set of power supply electrodes. Each set of power supply electrodes corresponds to one laser emitting area 251 and is electrically connected to the corresponding laser emitting area 251, to supply power to the laser emitting area 251, so as to separately control activation of each laser emitting area 251 in the plurality of laser emitting areas 251. After the laser module 25 is powered on, the laser emitting areas are sequentially activated to irradiate different positions of the aerosol generating substrate, to achieve a large number of puffs.

[0052] Specifically, the laser module 25 may include two laser emitting areas 251 and three positive and negative electrode pads 252. The three positive and negative electrode pads 252 form two sets of power supply electrodes. That is, the two sets of power supply electrodes share one positive and negative electrode pad 252, and the two sets of power supply electrodes are electrically connected to the laser emitting areas 251 respectively, to respectively control activation of the corresponding laser emitting areas 251. For ease of description, the following embodiments are all described by using this example.

[0053] Specifically, a material of the heat dissipation member 23 may be aluminum alloy, red copper, brass, or the like, or may be a combination of a plurality of materials, or the like. As shown in FIG. 5, to avoid affecting instantaneous light efficiency of the laser module 25, the thickness T of the heat dissipation member 23 on the second surface, in an irradiation direction, of the laser module 25 is greater than or equal to 2 mm. For example, the thickness T is 2 mm, 3 mm, 5 mm, or 8 mm. The unit heat dissipation volume is designed based on waste heat power, and is approximately 300-500 mm 3< / W, such as 350 mm 3< / W, 400 mm 3< / W, 450 mm 3< / W, or 500 mm 3< / W. The total volume of the heat dissipation member 23 is approximately 6,000-10,000 mm 3< , such as 7,000 mm 3< , 7,500 mm 3< , 8,000 mm 3< , 8,500 mm 3< , or 9,000 mm 3< . This can ensure that the temperature of the outer housing 20 of the aerosol generating device 2 remains at or below 48°C, thereby preventing the aerosol generating device from becoming uncomfortably hot to the touch.

[0054] It should be noted that the heat generated by the laser module 25 needs to be absorbed through the heat dissipation member 23 with the particular volume, such as a metal heat sink. The foregoing unit heat dissipation volume means that each 1 W of waste heat in a current environment needs to be absorbed through a heat sink with the volume of 100-500 mm 3< , to ensure that the temperature of the aerosol generating device 2 does not exceed 48°C. Based on the specific heat capacity of a metal, the temperature of a unit area of metal rises after the metal absorbs a specific amount of heat. It is required that the temperature of the outer housing does not exceed 48°C. The heat sink typically needs to remain below 50°C. Therefore, a temperature difference for heat absorption by the heat dissipation member is fixed at 50-25°C. 25°C refers to room temperature. It may be understood that if more heat is generated, a heat sink with the larger volume is needed to absorb the heat, thereby ensuring that the temperature of the heat dissipation member does not become excessively high.

[0055] In some embodiments, the housing assembly further includes a rolling member 24. The rolling member 24 is disposed between the outer surface of the side wall of the heat dissipation member 23 and the inner surface of the outer housing 20. In this way, frictional resistance during rotation of the heat dissipation member 23 relative to the outer housing 20 is reduced through the rolling member 24, thereby facilitating smooth rotation of the heat dissipation member 23. In a specific embodiment, at least one of the outer surface of the heat dissipation member 23 and the inner surface of the outer housing 20 has a sliding groove, and the rolling member 24 is embedded within the sliding groove, to limit a sliding direction and a position of the rolling member 24. The rolling member 24 may be a ball.

[0056] Specifically, the inner surface of the outer housing 20 is provided with a first sliding groove (not marked in the figure) and a second sliding groove (not marked in the figure) that extend in a circumferential direction of the outer housing 20. The first sliding groove is disposed at the end, away from the bottom of the accommodating cavity 21, of the outer housing 20.

[0057] The second sliding groove is disposed at the end, close to the bottom of the accommodating cavity 21, of the outer housing 20. As shown in FIG. 4, the outer surface of the heat dissipation member 23 is provided with a third sliding groove 232 and a fourth sliding groove 233 that extend in the circumferential direction of the heat dissipation member 23. The third sliding groove 232 is disposed corresponding to the first sliding groove, and is matched with the first sliding groove to form a sliding track. The fourth sliding groove 233 is disposed corresponding to the second sliding groove, and is matched with the second sliding groove to form another sliding track. The rolling member 24 is embedded within the sliding tracks.

[0058] Specifically, the rolling member 24 may alternatively be replaced with a bearing or another structure facilitating rolling.

[0059] Refer to FIG. 9 to FIG. 12. In another embodiment, FIG. 9 is a sectional view of an aerosol generating system in a direction A-A according to another embodiment of this application. FIG. 10 is a schematic structural diagram of an aerosol generating device in FIG. 9; FIG. 11 is an enlarged view of a part B in FIG. 10; and FIG. 12 is a schematic diagram of an overall upper bracket according to an embodiment of this application. The housing assembly further includes an upper bracket 29, which may be made of Teflon, a metal material, and the like. The upper bracket 29 is connected to the outer housing 20 and is located on the side, facing a cavity opening of the accommodating cavity 21, of the heat dissipation member 23. One of the upper bracket 29 and the heat dissipation member 23 has a circumferential sliding groove, and the other of the upper bracket and the heat dissipation member has a circumferential protrusion 291 that matches the circumferential sliding groove. The circumferential protrusion 291 is embedded within the circumferential sliding groove and is capable of sliding in an extension direction of the circumferential sliding groove. In this way, the heat dissipation member 23 can be limited through the circumferential protrusion 291 and the circumferential sliding groove, thereby preventing the heat dissipation member 23 from wobbling in a radial direction without affecting rotation of the heat dissipation member 23. In an embodiment, with reference to FIG. 12, the surface, facing the heat dissipation member 23, of the upper bracket 29 has a circumferential protrusion 291, and the circumferential protrusion 291 is in a closed loop shape. The surface, facing the cavity opening of the accommodating cavity 21, of the heat dissipation member 23 has a circumferential sliding groove, and the circumferential sliding groove extends in the circumferential direction of the heat dissipation member 23 and is in a closed loop shape. The circumferential protrusion 291 of the upper bracket 29 is embedded within the circumferential sliding groove of the heat dissipation member 23, and the heat dissipation member 23 is rotatable relative to the upper bracket 29.

[0060] Of course, in another embodiment, the outer surface of the side wall of the heat dissipation member 23 may alternatively be made of a material with a low coefficient of friction, such as polytetrafluoroethylene (Teflon). The heat dissipation member 23 with the low coefficient of friction is guided along an arcuate constraint on the inner surface of the outer housing 20 to slide and rotate, thereby achieving a low-resistance rotational movement of the heat dissipation member 23 relative to the outer housing 20.

[0061] For details, refer to FIG. 9 to FIG. 11, The housing assembly further includes a transmission gear 30 and a driving member (not shown in the figure). The transmission gear 30 is connected to the heat dissipation member 23. In a specific embodiment, the transmission gear 30 is sleeved on the outer wall surface of the heat dissipation member 23, and is in an interference fit with the heat dissipation member 23, so as to be fixed relative to the heat dissipation member 23. Of course, in another embodiment, the transmission gear 30 may alternatively be integrally formed with the heat dissipation member 23. Alternatively, the transmission gear 30 is connected to the heat dissipation member 23 in a manner such as soldering or clamping. The driving member is meshed with the transmission gear 30 and is used for driving the transmission gear 30 to rotate, so as to drive the heat dissipation member 23 to rotate. Further, the outer wall surface of the side wall at the end, facing the upper bracket 29, of the heat dissipation member 23 is sunken towards the central axis M of the heat dissipation member 23 to define a step, the transmission gear 30 is sleeved on the step of the heat dissipation member 23, the outer wall surface of the side wall of the transmission gear 30 is flush with the outer wall surface of the side wall of the heat dissipation member 23, and the surface on the side, facing the upper bracket 29, of the transmission gear 30 is flush with the surface on the side, facing the upper bracket 29, of the heat dissipation member 23.

[0062] In this way, the transmission gear 30 does not protrude from the outer wall surface of the heat dissipation member 23, and the transmission gear 30 does not affect connection between the upper bracket 29 and the heat dissipation member 23 or mounting of another component within the outer housing 20, thereby saving space and facilitating miniaturization of a product.

[0063] In an embodiment, the housing assembly includes a light transmitting tube 22. The light transmitting tube 22 is sleeved inside the heat dissipation member 23, and the inner cavity of the light transmitting tube 22 is used for accommodating and circumferentially fixing the aerosol generating article 1, and the laser module 25 is located between the light transmitting tube 22 and the heat dissipation member 23. The laser can pass through the light transmitting tube 22 to irradiate the aerosol generating article 1, and after the aerosol generating substrate of the aerosol generating article 1 is heated under laser irradiation, an aerosol is generated. In this way, the light transmitting tube 22 can protect the laser module 25 from potential damage during insertion of the aerosol generating article 1 into the accommodating cavity. In addition, the light transmitting tube 22 is configured to be transparent, for example as a glass tube. Compared with a non-transparent tube such as a black tube, the light transmitting tube does not obstruct laser from passing through and irradiating the aerosol generating article 1 within the light transmitting tube 22.

[0064] The light transmitting tube 22 may be a round tube. The light transmitting tube 22 is made of a light transmitting material, which may be glass or another transparent and high-temperature-resistant material. In an embodiment, the light transmitting tube 22 is configured to be capable of rotating relative to the heat dissipation member 23. The heat dissipation member 23 rotates around the light transmitting tube 22 and the aerosol generating article 1 within the inner cavity of the light transmitting tube 22. The laser module 25 is located between the light transmitting tube 22 and the heat dissipation member 23. After the laser module 25 is powered on, laser passes through the light transmitting tube 22 to irradiate the aerosol generating article 1, so as to heat the aerosol generating article to generate an aerosol.

[0065] In another embodiment, the light transmitting tube 22 is configured to be capable of rotating relative to the aerosol generating article 1. The light transmitting tube 22 is fixedly mounted inside the heat dissipation member 23. The heat dissipation member 23 and the light transmitting tube 22 rotate relative to the aerosol generating article 1. After the laser module 25 is powered on, laser passes through the light transmitting tube 22 to irradiate the aerosol generating article 1, so as to heat the aerosol generating article to generate an aerosol. The surface of the light transmitting tube 22 is smooth, so as to reduce frictional resistance during rotation of the heat dissipation member 23 relative to the aerosol generating article 1.

[0066] In an embodiment, the inner surface and / or the outer surface of the side wall of the light transmitting tube 22 is provided with an antireflection film. This can increase the transmittance of laser into the accommodating cavity. Specifically, it is verified by an experiment that by adding the antireflection film, the laser transmittance may be 90% to 99.99%.

[0067] Of course, the aerosol generating device 2 further includes a power supply assembly. The power supply assembly is disposed within the housing assembly and is electrically connected to the laser module 25. The power supply assembly is configured to maintain electrical connection with the laser module 25 during rotation of the laser module 25 about the central axis M of the accommodating cavity 21.

[0068] The power supply assembly includes a main bracket 28, a control circuit board 33, and a connection circuit board. The main bracket 28 is disposed within the outer housing 20 and is used for supporting another structure within the aerosol generating device 2. A material of the main bracket 28 may be aluminum alloy, stainless steel, plastic, or the like. The main bracket 28 is matched with the outer housing 20 to form a receiving cavity, and the heat dissipation member 23 is rotatably disposed within the receiving cavity. The control circuit board 33 and the connection circuit board are both received in the receiving cavity.

[0069] Specifically, a clamping groove is formed in the main bracket 28, and the aerosol generating article 1 is disposed within the receiving cavity and is clamped within the clamping groove, to implement relative fixation between the aerosol generating article 1 and the aerosol generating device 2. To maintain the electrical connection between the laser module 25 and the power supply assembly during rotation of the heat dissipation member 23 around the central axis M of the receiving cavity, so as to enable the laser module 25 to continuously operate to heat the aerosol generating article 1, the following provides embodiments of three types of connection circuit boards.

[0070] In an embodiment, the connection circuit board is fixed to the bottom surface of the heat dissipation member 23 and rotates with the heat dissipation member 23. The surface, facing the heat dissipation member 23, of the connection circuit board is provided with three pins, and is electrically connected to the laser module 25 to supply current and voltage. The surface, facing away from the heat dissipation member 23, of the connection circuit board has a plurality of first annular electrodes 262, and the first annular electrodes 262 are in a closed loop shape. The plurality of first annular electrodes 262 are arranged concentrically in sequence, and are connected in series to the three pins on the surface facing the heat dissipation member 23 through internal vias. The bottom surface of the receiving cavity has an electrode contact that is electrically connected to the control circuit board 33. The connection circuit board may be electrically connected to the electrode contact through a spring contact or magnetic force.

[0071] In this way, the connection circuit board can rotate with the heat dissipation member 23 and maintain contact and electrical connection between the first annular electrode 262 and the electrode contact. It should be noted that the "bottom surface of the heat dissipation member 23" involved in this application refers to an end surface at one end, close to the bottom wall of the accommodating cavity 21, of the heat dissipation member 23.

[0072] In another embodiment, the connection circuit board is disposed on the bottom surface of the receiving cavity and is fixed to the main bracket 28 of the housing assembly. The surface, facing the heat dissipation member 23, of the connection circuit board has a plurality of second annular electrodes 271, and the second annular electrodes 271 are in a closed loop shape. The plurality of second annular electrodes 271 are arranged concentrically in sequence. The surface, facing away from the heat dissipation member 23, of the connection circuit board is provided with three pins, and is electrically connected to the control circuit board 33. The second annular electrodes 271 are electrically connected to the three pins on the surface, facing away from the heat dissipation member 23, of the connection circuit board through internal vias.

[0073] The bottom surface of the heat dissipation member 23 has an electrode contact that is electrically connected to the laser module 25. The connection circuit board may be electrically connected to the electrode contact through a spring contact or magnetic force. In this way, the heat dissipation member 23 can rotate relative to the connection circuit board and maintain electrical connection between the electrode contact and the second annular electrode 271.

[0074] In still another embodiment, with reference to FIG. 3 and FIG. 13 to FIG. 16, FIG. 13 is a schematic structural diagram of a first surface of an upper circuit board; FIG. 14 is a schematic structural diagram of a second surface of an upper circuit board; FIG. 15 is a schematic structural diagram of a first surface of a lower circuit board; and FIG. 16 is a schematic structural diagram of a second surface of a lower circuit board. The connection circuit board includes an upper circuit board 26 and a lower circuit board 27. The upper circuit board 26 is fixed to the bottom surface of the heat dissipation member 23 and rotates with the heat dissipation member 23. The surface (namely, a first surface), facing the heat dissipation member 23, of the upper circuit board 26 is provided with three first pins 261, and is electrically connected to the laser module 25 to supply current and voltage. The surface (namely, a second surface), facing away from the heat dissipation member 23, of the upper circuit board 26 has a plurality of first annular electrodes 262, and the first annular electrodes 262 are in a closed loop shape. The plurality of first annular electrodes 262 are arranged concentrically in sequence, and are connected in series to the three first pins 261 on the surface facing the heat dissipation member 23 through internal vias. The lower circuit board 27 is disposed on the bottom surface of the receiving cavity and is fixed to the main bracket 28 of the housing assembly. The surface (namely, a first surface), facing the heat dissipation member 23, of the lower circuit board 27 has a plurality of second annular electrodes 271, and the second annular electrodes 271 are in a closed loop shape. The plurality of second annular electrodes 271 are arranged concentrically in sequence. The surface (namely, a second surface), facing away from the heat dissipation member 23, of the lower circuit board 27 is provided with three second pins 272, and is electrically connected to the control circuit. The second annular electrodes 271 are connected to the three second pins 272 on the surface, facing away from the heat dissipation member 23, of the lower circuit board 27 through internal vias. The first annular electrode 262 of the upper circuit board 26 may be in stable contact with the second annular electrode 271 of the lower circuit board 27 through a spring contact or magnetic force. In this way, the upper circuit board 26 can rotate with the heat dissipation member 23 relative to the lower circuit board 27 and maintain contact and electrical connection between the first annular electrode 262 and the second annular electrode 271.

[0075] In an embodiment, the power supply assembly of the aerosol generating device 2 further includes a battery 32. The battery 32 is disposed on the main bracket 28 and is electrically connected to the control circuit board 33. The battery 32 provides an energy source for the entire system. The aerosol generating device 2 further includes a motor 31. The motor 31 is connected to the heat dissipation member 23 and is electrically connected to the control circuit board 33. The motor drives the heat dissipation member 23 to rotate through a belt, a gear, or the like. The control circuit board 33 is used for controlling the laser module 25 to heat the aerosol generating article 1, and controlling the motor 31 to drive the heat dissipation member 23 to rotate, so as to enable the laser module 25 to heat the aerosol generating article 1 in different directions.

[0076] For a specific embodiment, refer to FIG. 9 and FIG. 10. The housing assembly further includes a base for the aerosol generating article 1, a fixing pin, a base sealing component, a lower bracket, a mouthpiece sensor, and the like. A material of the base for the aerosol generating article 1 may be plastic, silicone, metal, or the like. The base is used for supporting and fixing the aerosol generating article 1, and is matched with the base sealing component to achieve an airway design. The fixing pin is used for fixing the aerosol generating article 1, to prevent the aerosol generating article 1 from rotating with the light transmitting tube 22 and the heat dissipation member 23, thereby avoiding poor user experience. A material of the base sealing component may be silicone, plastic, or the like. The base sealing component is a double-hole design, and includes an air inlet hole and a mouthpiece hole. The air inlet hole and the mouthpiece hole are used for allowing external air to enter during inhalation of the aerosol generating article 1, to generate an aerosol. The mouthpiece hole includes the mouthpiece sensor, and the mouthpiece sensor is used for detecting the negative air pressure, and transmitting an airflow signal through the control circuit board 33, and to active a heating element of the aerosol generating device 2. The lower bracket is used for supporting the connection circuit board and the base sealing component.

[0077] This application provides the aerosol generating device 2. The aerosol generating device 2 includes: the housing assembly, having the accommodating cavity 21, where the accommodating cavity 21 is used for accommodating the aerosol generating article 1; and the laser module 25, disposed on the side wall of the accommodating cavity 21, where the laser module 25 is configured to be capable of rotating about the central axis M of the accommodating cavity 21, to heat the aerosol generating article 1 within the accommodating cavity 21 in different directions. This can ensure that every position of the aerosol generating article 1 in the circumferential direction of the aerosol generating article can be uniformly heated and atomized, to improve utilization of the aerosol generating article 1, thereby increasing a number of puffs from the aerosol generating article 1. In addition, the aerosol generating article 1 does not need to rotate, which is compatible with the conventional solution in which the aerosol generating article does not rotate in a user inhalation process, thereby exhibiting good applicability.

[0078] The above are only implementations of this application, and are not intended to limit the patent scope of this application. Any equivalent structure or equivalent process transformation made based on the content of the specification and the accompanying drawings of this application or directly or indirectly applied to other related technical fields is similarly included in the patent protection scope of this application.

Claims

1. An aerosol generating device, comprising: a housing assembly, having an accommodating cavity, wherein the accommodating cavity is used for accommodating an aerosol generating article; and a laser module, disposed on one side of the accommodating cavity, wherein the laser module is configured to be capable of rotating around the accommodating cavity, to heat the aerosol generating article within the accommodating cavity in different directions.

2. The aerosol generating device of claim 1, wherein the housing assembly comprises an outer housing and a heat dissipation member disposed within the outer housing, wherein the heat dissipation member is a hollow cylindrical structure, and the accommodating cavity is formed inside the heat dissipation member; and the heat dissipation member is configured to be capable of rotating relative to the outer housing about the central axis of the accommodating cavity, and the laser module is disposed on an inner side wall of the heat dissipation member and is configured to be capable of rotating with the heat dissipation member.

3. The aerosol generating device of claim 2, wherein the housing assembly further comprises a transmission gear and a driving member, wherein the transmission gear is connected to the heat dissipation member; and the driving member is meshed with the transmission gear and is used for driving the transmission gear to rotate, so as to drive the heat dissipation member to rotate.

4. The aerosol generating device of claim 2, wherein the heat dissipation member comprises a plurality of heat dissipation portions, wherein the plurality of heat dissipation portions are distributed in a circumferential direction of the heat dissipation member, and every two adjacent heat dissipation portions are detachably connected.

5. The aerosol generating device of claim 2, wherein the inner surface of the heat dissipation member has a groove, and the laser module is disposed within the groove.

6. The aerosol generating device of claim 5, wherein the groove extends in a central axis direction of the accommodating cavity; and the laser module comprises one laser emitting area that extends in the center axis direction of the accommodating cavity, or comprises a plurality of laser emitting areas that are disposed at intervals in the center axis direction of the accommodating cavity.

7. The aerosol generating device of any one of claims 2 to 6, wherein the housing assembly further comprises a light transmitting tube, wherein the light transmitting tube is sleeved inside the heat dissipation member, and the inner cavity of the light transmitting tube is used for accommodating the aerosol generating article; and the laser module is located between the light transmitting tube and the heat dissipation member.

8. The aerosol generating device of claim 7, wherein the inner surface and / or outer surface of the side wall of the light transmitting tube is provided with an antireflection film.

9. The aerosol generating device of any one of claims 2 to 6, wherein the housing assembly further comprises a rolling member, wherein the rolling member is disposed between the outer surface of the heat dissipation member and the inner surface of the outer housing, at least one of the outer surface of the heat dissipation member and the inner surface of the outer housing has a sliding groove, and the rolling member is embedded within the sliding groove.

10. The aerosol generating device of any one of claims 2 to 6, wherein the heating assembly further comprises an upper bracket, wherein the upper bracket is connected to the outer housing and is located on the side, facing a cavity opening of the accommodating cavity, of the heat dissipation member, wherein one of the upper bracket and the heat dissipation member has a circumferential sliding groove, and the other of the upper bracket and the heat dissipation member has a circumferential protrusion that matches the circumferential sliding groove; and the circumferential protrusion is embedded within the circumferential sliding groove and is capable of sliding in an extension direction of the circumferential sliding groove.

11. The aerosol generating device of any one of claims 2 to 6, further comprising a power supply assembly, wherein the power supply assembly is disposed within the housing assembly and is electrically connected to the laser module; and the power supply assembly is configured to maintain electrical connection with the laser module during rotation of the laser module about the central axis of the accommodating cavity.

12. The aerosol generating device of claim 11, wherein the power supply assembly comprises a main bracket, a control circuit board, and a connection circuit board, wherein the main bracket is matched with the outer housing to form a receiving cavity, and the heat dissipation member is rotatably disposed within the receiving cavity; wherein the connection circuit board is disposed on the bottom surface of the heat dissipation member and is electrically connected to the laser module; and the surface, facing away from the heat dissipation member, of the connection circuit board has a first annular electrode, and the bottom surface of the receiving cavity has an electrode contact that is electrically connected to the control circuit board; and the connection circuit board is configured to be capable of rotating with the heat dissipation member and maintaining contact and electrical connection between the first annular electrode and the electrode contact; or the connection circuit board is disposed on the bottom surface of the receiving cavity and is electrically connected to the control circuit board; the surface, facing the heat dissipation member, of the connection circuit board has a second annular electrode, and the bottom surface of the heat dissipation member has an electrode contact that is electrically connected to the laser module; and the heat dissipation member is configured to be capable of rotating relative to the connection circuit board and maintaining contact and electrical connection between the electrode contact and the second annular electrode; or the connection circuit board comprises an upper circuit board and a lower circuit board, wherein the upper circuit board is disposed on the bottom surface of the heat dissipation member and is electrically connected to the laser module, and the surface, facing away from the heat dissipation member, of the upper circuit board has a first annular electrode; the lower circuit board is disposed on the bottom surface of the receiving cavity and is electrically connected to the control circuit board, and the surface, facing the heat dissipation member, of the lower circuit board has a second annular electrode; and the upper circuit board is configured to be capable of rotating with the heat dissipation member relative to the lower circuit board and maintaining contact and electrical connection between the first annular electrode and the second annular electrode.

13. The aerosol generating device of claim 12, wherein the power supply assembly further comprises a battery, wherein the battery is disposed on the main bracket and is electrically connected to the control circuit board; the aerosol generating device further comprises a driving member, wherein the driving member is connected to the heat dissipation member and is electrically connected to the control circuit board; and the control circuit board is used for controlling the laser module to heat the aerosol generating article, and controlling the driving member to drive the heat dissipation member to rotate, so as to enable the laser module to heat the aerosol generating article in different directions.

14. The aerosol generating device of claim 2, wherein the thickness of the side wall of the heat dissipation member is greater than or equal to 2 mm; and the unit heat dissipation area of the heat dissipation member is 100-500 mm3.

15. The aerosol generating system, comprising an aerosol generating article and the aerosol generating device of any one of claims 1 to 14.

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