Aerosol generating device

Abstract

The present application discloses an aerosol generating device. The aerosol generating device includes a heating cavity and an energy source. The heating cavity forms a heating chamber, and the heating chamber is used to accommodate an aerosol-forming substrate; the energy source is arranged in the heating chamber and is located above the aerosol-forming substrate, and the energy source is used to heat the aerosol-forming substrate to generate an aerosol, and the energy source can move relative to the aerosol-forming substrate along a preset path. The aerosol generating device of the embodiment of the present application heats the aerosol-forming substrate in a zoned manner by moving the energy source relative to the aerosol-forming substrate along a preset path, so that the heating conditions of the aerosol-forming substrate at different positions are relatively balanced, thereby improving the consistency of aerosol generation by the aerosol-forming substrate.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and more specifically, to an aerosol generating device. Background Art

[0002] The aerosol generating device can be used to heat the aerosol-forming substrate to form an aerosol by heating the aerosol-forming substrate without burning it. In the related art, the aerosol generating device includes a heating element for providing a heat source and a heating chamber for accommodating the aerosol-forming substrate. However, the heating element heats the aerosol-forming substrate to different degrees, and the generated aerosol has poor consistency. Utility Model Content

[0003] The embodiments of the present application provide an aerosol generating device, and are at least used to improve the problem of poor aerosol consistency.

[0004] The aerosol generating device of the embodiment of the present application includes a heating cavity and an energy source. The heating cavity is formed with a heating chamber, and the heating chamber is used to accommodate an aerosol-forming substrate; the energy source is arranged in the heating chamber and located above the aerosol-forming substrate, and the energy source is used to heat the aerosol-forming substrate to generate an aerosol, and the energy source can move relative to the aerosol-forming substrate along a preset path.

[0005] The aerosol generating device of the embodiment of the present application heats the aerosol forming substrate in different zones by moving the energy source along a preset path relative to the aerosol forming substrate, so that the heating conditions of the aerosol forming substrate at different positions are relatively balanced, thereby improving the consistency of aerosol generation by the aerosol forming substrate.

[0006] In some embodiments, the energy source is a radiant heat source, and the energy source is configured to be spaced apart from the aerosol-forming substrate.

[0007] In this way, the energy source may heat the aerosol-forming substrate in a non-contact manner while preventing the aerosol-forming substrate from interfering with the movement of the energy source.

[0008] In some embodiments, the aerosol-forming substrate is in the form of a sheet, and the surface area of ​​the side of the aerosol-forming substrate opposite to the energy source is in the range of 100 mm 2 -4000 mm 2 The thickness of the aerosol-forming substrate along the direction opposite to the energy source ranges from 2 mm to 8 mm.

[0009] In this way, the sheet-like aerosol-forming matrix heats up faster, which is beneficial to saving heating power and improving atomization efficiency.

[0010] In some embodiments, the heating chamber includes a boss and a cover body opposite to and spaced from the boss, the cover body and the boss are combined to form a heating chamber, and the boss is used to place the aerosol-forming substrate.

[0011] In this way, by adopting the separate structure of the boss and the cover body, the heating cavity can be flexibly disassembled.

[0012] In some embodiments, the boss comprises a top surface and a base connected to the top surface, and the aerosol-forming substrate is placed on the top surface.

[0013] In this way, the aerosol-forming substrate can be stably placed on the raised platform by arranging the top surface and the base.

[0014] In some embodiments, the cover body includes a top cover and a surrounding wall connected to the top cover, the top cover is opposite to and spaced from the boss, the energy source is movably disposed on the top cover, the surrounding wall extends from the top cover to the boss, and surrounds the heating chamber.

[0015] In this way, by arranging the top cover to be opposite to and spaced from the boss, the aerosol-forming substrate and the energy source are opposite to and spaced from each other, and the energy source can move on the top cover relative to the aerosol-forming substrate.

[0016] In some embodiments, an air inlet is formed between the cover and the boss, and an air outlet is formed on the surrounding wall.

[0017] In this way, the suction airflow can enter from the air inlet near the base and flow out from the air outlet near the top cover, making it easier for the airflow to drive the aerosol to flow and be inhaled.

[0018] In some embodiments, the cross-sectional shape of the aerosol-forming substrate along a direction perpendicular to the top cover is circular, and the energy source is capable of moving along an annular path on the top cover.

[0019] In this way, the energy source moves along the annular path on the top cover, so that the energy source heats the aerosol-forming substrate in different zones, so that the heating degree of the aerosol-forming substrate at different positions is more balanced.

[0020] In some embodiments, the angle of each movement of the energy source along the circular path ranges from 15° to 90°.

[0021] In this way, by reasonably setting the angle range of each rotation of the energy source, the area of ​​the heating area is controlled to be the same and reasonably distributed, so that the aerosol generated in different heating areas has better consistency.

[0022] In some embodiments, the aerosol generating device comprises a drive assembly connected to the energy source, the drive assembly being used to drive the energy source to move relative to the aerosol-forming substrate.

[0023] In this way, the heating element is driven to move by the driving component, thereby controlling the energy source to move along a predetermined path.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a schematic structural diagram of an aerosol generating device according to an embodiment of the present application;

[0027] Figure 2 is a schematic structural diagram of a heating cavity according to an embodiment of the present application;

[0028] Figure 3 yes Figure 2 The schematic cross-sectional view of the heating cavity along the AA direction is shown;

[0029] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the heating cavity of the embodiment of the present application.

[0030] Description of main component symbols:

[0031] Aerosol generating device 100, heating cavity 10, heating chamber 101, boss 11, top surface 111, base 112, bottom wall 1121, vertical wall 1122, cover body 12, top cover 121, surrounding wall 122, air inlet 102, air outlet 103, aerosol forming matrix 20, energy source 30, laser light source 31, drive assembly 40, transmission mechanism 41, slide rail 411, and nozzle 50. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "lateral", "length", "thickness", "up", "down", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" 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, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0037] See also Figure 1 The aerosol generating device 100 is a structure that can generate aerosols by acting on the aerosol-forming matrix 20 through resistance heating, electromagnetic heating, microwave heating, laser irradiation, infrared light irradiation, ultrasound or mechanical vibration. The aerosol-forming matrix 20 is a plant product that has been processed and heated to produce an aerosol. The form of the aerosol-forming matrix 20 can be fully solid or semi-solid. In the case where the aerosol-forming matrix 20 is fully solid, the aerosol-forming matrix 20 can be prepared by rolling, slurrying, die casting, extrusion and other process methods. The aerosol-forming matrix 20 can be a sheet structure, a strip structure, a tubular structure or a block structure. In the present application, the aerosol-forming matrix 20 is such as Figure 3 The sheet-like structure shown is used as an example for explanation.

[0038] The aerosol-forming substrate 20 is heated and atomized to form an aerosol, which may be visible or invisible and may include vapor (e.g., fine particulate matter in a gaseous state, which is usually liquid or solid at room temperature) and liquid droplets of gas and condensed vapor. The user can inhale the aerosol into the oral cavity, nasal cavity or lungs through the mouth or nose, and the aerosol inhaled into the user's respiratory system can be used for various purposes such as food, medicine, health care, entertainment, etc.

[0039] See also Figure 1-Figure 3 The aerosol generating device 100 of the embodiment of the present application includes a heating cavity 10 and an energy source 30. The heating cavity 10 is formed with a heating chamber 101, and the heating chamber 101 is used to accommodate the aerosol-forming substrate 20; the energy source 30 is arranged in the heating chamber 101 and is located above the aerosol-forming substrate 20, and the energy source 30 is used to heat the aerosol-forming substrate 20 to generate aerosol, and the energy source 30 can move relative to the aerosol-forming substrate 20 along a preset path.

[0040] The aerosol generating device 100 of the embodiment of the present application moves the energy source 30 along a preset path relative to the aerosol-forming substrate 20, and heats the aerosol-forming substrate 20 in different zones, so that the heating conditions of the aerosol-forming substrate 20 at different positions are relatively balanced, thereby improving the consistency of aerosol generation by the aerosol-forming substrate 20.

[0041] Specifically, the heating cavity 10 can provide support and protection for the energy source 30 and the aerosol-forming matrix 20, and the heating chamber 101 formed by the heating cavity 10 provides a place for heating and atomization for the energy source 30 and the aerosol-forming matrix 20. The heating cavity 10 can be in various shapes such as cylindrical, spherical, rugby, and rod-shaped. The cross-sectional shape of the outer contour of the heating cavity 10 includes but is not limited to circular, elliptical, rectangular, triangular, polygonal, runway-shaped, olive-shaped, and other irregular shapes with straight and curved edges. In this application, the heating cavity 10 is taken as Figure 2 The columnar structure shown in FIG. 1 has an outer cross-sectional shape of the heating chamber 10. Figure 2 The circle shown is used as an example for explanation.

[0042] The energy source 30 may be any device capable of providing atomization energy to the aerosol-forming substrate 20. For example, the energy source 30 may be a heating element such as a thermal resistor, a thermocouple, an induction coil, an electrode, etc. The energy source 30 is close to the surface of the aerosol-forming substrate 20 and heats the atomized aerosol-forming substrate 20 by heat transfer. For another example, the energy source 30 may also be a radiation heat source such as a laser light source 31, an infrared light source, a microwave emission source, an ultrasonic transmitter, etc. The energy source 30 may be spaced a certain distance from the aerosol-forming substrate 20 and heats the atomized aerosol-forming substrate 20 by emitting laser, infrared radiation, microwave, ultrasonic wave, etc. to the aerosol-forming substrate 20. In some extended embodiments, the energy source 30 may also be a heat source formed by a combination of a contact heating element and a radiation heat source.

[0043] Preferably, the energy source 30 is a laser light source 31 .

[0044] During the process of the energy source 30 heating the aerosol-forming substrate 20, the energy source 30 moves relative to the aerosol-forming substrate 20. The movement path of the energy source 30 may be a certain distance from the aerosol-forming substrate 20 to prevent the aerosol-forming substrate 20 from interfering with the movement of the energy source 30. The movement path of the energy source 30 may be a straight line, a curve or an arc, or a combination of straight lines and curves. The energy source 30 may move relative to the aerosol-forming substrate 20 in at least one of the following forms: translation, rotation, rotation, swinging, etc., or may move in a combination of two or more of these forms. The relative position of the energy source 30 and the aerosol-forming substrate 20 changes with the movement of the energy source 30, so that the heating area of ​​the energy source 30 on the aerosol-forming substrate 20 changes, thereby realizing zoned heating of the aerosol-forming substrate 20 and ensuring uniform heating of the aerosol-forming substrate 20 at different positions.

[0045] See also Figure 3 In some embodiments, the energy source 30 is a radiant heat source, and the energy source 30 is configured to be spaced apart from the aerosol-forming substrate 20 .

[0046] In this way, the energy source 30 may heat the aerosol-forming substrate 20 in a non-contact manner while preventing the aerosol-forming substrate 20 from interfering with the movement of the energy source 30 .

[0047] Specifically, the energy source 30 can heat the aerosol-forming substrate 20 by emitting laser, infrared radiation, ultrasonic waves, or blowing hot air to the aerosol-forming substrate 20. Exemplarily, the energy source 30 is a laser light source 31, which can emit a laser beam to the aerosol-forming substrate 20. The laser beam is composed of high-energy photons. When the laser beam is covered on the surface of the aerosol-forming substrate 20, the aerosol-forming substrate 20 absorbs the energy of the photons and converts them into heat, so that it can be quickly heated and atomized to produce aerosol. The surface of the aerosol-forming substrate 20 facing the laser light source 31 is first irradiated by the laser to form an aerosol. The aerosol-forming substrate 20 can be arranged below the laser light source 31 to facilitate the aerosol formed on the surface to escape from the heating cavity 10.

[0048] See also Figure 3 In some embodiments, the laser light source 31 may be disposed directly above the aerosol-forming substrate 20, and the direction with the shortest distance from the laser light source 31 to the aerosol-forming substrate 20 is from top to bottom.

[0049] During the movement of the energy source 30, the distance between the energy source 30 and the aerosol-forming substrate 20 can be kept relatively uniform, so that the radiation distance remains fixed, thereby making the heating temperature of the aerosol-forming substrate 20 in different heating areas relatively consistent.

[0050] In some embodiments, the aerosol-forming substrate 20 is in sheet form, and the surface area of ​​the side of the aerosol-forming substrate 20 opposite to the energy source 30 is in the range of 100 mm 2 -4000 mm 2 The thickness of the aerosol-forming substrate 20 along the direction opposite to the energy source 30 ranges from 2 mm to 8 mm.

[0051] In this way, the sheet-shaped aerosol-forming matrix 20 heats up faster, which is beneficial to saving heating power and improving atomization efficiency.

[0052] Specifically, the sheet-shaped aerosol-forming substrate 20 may be flattened in the transverse direction of the heating chamber 10. The energy source 30 may be located in a plane spaced a certain distance from the aerosol-forming substrate 20 and move relative to the aerosol-forming substrate 20. Exemplarily, the movement path of the energy source 30 may be located in a plane spaced a preset distance from the aerosol-forming substrate 20 above the aerosol-forming substrate.

[0053] The surface shape of the side of the aerosol-forming substrate 20 facing the energy source 30 may be a triangle, rectangle, circle, ellipse, sector, polygon, racetrack or other irregular shapes. The surface area of ​​the side of the aerosol-forming substrate 20 facing the energy source 30 may range from 100 mm 2 -4000 mm 2For example, the surface area of ​​the side of the aerosol-forming substrate 20 facing the energy source 30 may range from 100 mm 2 -4000 mm 2 、121mm 2 -2000 mm 2 , 150mm 2 -1000 mm 2 、270mm 2 -800mm 2 , 400mm 2 -600 mm 2 , 1000mm 2 -3000mm 2 , 2000mm 2 -2900 mm 2 、2400mm 2 -3500 mm 2 、3100mm 2 -3750 mm 2 、3500mm 2 -3800 mm 2 , 2000mm 2 -4000 mm 2 For example, the surface area of ​​the aerosol-forming substrate 20 facing the energy source 30 may be 100 mm 2 、144mm 2 、180mm 2 、256mm 2 、380mm 2 、475mm 2 、521mm 2 、640mm 2 、720mm 2 、1600mm 2 , 2000mm 2 、3125mm 2 、3752mm 2 , 4000mm 2. Along the direction in which the aerosol-forming substrate 20 is opposite to the energy source 30, the thickness H of the aerosol-forming substrate 20 may range from 2 mm to 8 mm (inclusive). For example, the thickness H of the aerosol-forming substrate 20 may range from 2 mm to 8 mm, 2.3 mm to 7.9 mm, 2.65 mm to 7.5 mm, 3.1 mm to 7.0 mm, 3.5 mm to 6.5 mm, 3.7 mm to 6.2 mm, 4.25 mm to 5.8 mm, 4.6 mm to 5.2 mm. For another example, the thickness H of the aerosol-forming substrate 20 may range from 2 mm to 8 mm, 2.3 mm to 7.9 mm, 2.65 mm to 7.5 mm, 3.1 mm to 7.0 mm, 3.5 mm to 6.5 mm, 3.7 mm to 6.2 mm, 4.25 mm to 5.8 mm, 4.6 mm to 5.2 mm. For another example, the thickness H of the aerosol-forming substrate 20 may range from 2 mm to 2.45 mm, 3.2 mm, 5.1 mm, 5.3 mm, 6.2 mm, 6.5 mm, 6.9 mm, 7.4 mm, 7.81 mm, 8 mm.

[0054] See also Figure 4 In some embodiments, the heating chamber 10 includes a boss 11 and a cover 12 opposite to and spaced from the boss 11 , the cover 12 and the boss 11 are covered to form a heating chamber 101 , and the boss 11 is used to place the aerosol-forming substrate 20 .

[0055] In this way, by adopting the separate structure of the boss 11 and the cover body 12, the heating chamber 10 can be flexibly disassembled.

[0056] Specifically, the aerosol-forming substrate 20 is placed on the boss 11, and the cover 12 can cover the aerosol-forming substrate 20 and the boss 11. The area where the boss 11 and the cover 12 are opposite and spaced apart forms a heating chamber 101, and the cover 12 and the boss 11 jointly define the boundary of the heating chamber 101. Along the thickness direction of the aerosol-forming substrate 20, the cross-sectional shape of the heating chamber 101 is adapted to the cross-sectional shape of the aerosol-forming substrate 20. The cross-sectional shape of the heating chamber 101 includes, but is not limited to, a triangle, a rectangle, a circle, an ellipse, a sector, a polygon, a racetrack, and other irregular shapes.

[0057] The energy source 30 may be disposed on the cover 12 and partially extend into the heating chamber 101, and be spaced a preset distance from the aerosol-forming substrate 20. In some embodiments, the energy source 30 may move relative to the aerosol-forming substrate 20 along a preset path on the cover 12.

[0058] Please refer again Figure 3 In some embodiments, the boss 11 includes a top surface 111 and a base 112 connected to the top surface 111 , and the aerosol-forming substrate 20 is placed on the top surface 111 .

[0059] In this way, the aerosol-forming substrate 20 can be stably placed on the boss 11 by providing the top surface 111 and the base 112 .

[0060] Specifically, the top surface 111 may be a flat horizontal surface, the aerosol-forming substrate 20 is flat on the top surface 111, and the thickness direction of the aerosol-forming substrate 20 may be perpendicular to the top surface 111. The top surface 111 may at least cover the geometric center of the surface shape of the aerosol-forming substrate 20 to provide stable support for the aerosol-forming substrate 20. The shape of the top surface 111 may match the surface shape of the aerosol-forming substrate 20, and the shape of the top surface 111 may be circular, elliptical, triangular, rectangular, fan-shaped, polygonal, racetrack-shaped and other irregular shapes. The shape of the top surface 111 may also be different from the shape of the aerosol-forming substrate 20. Exemplarily, the shape of the top surface 111 and the surface shape of the aerosol-forming substrate 20 are both circular, the line connecting the center of the top surface 111 and the aerosol-forming substrate 20 may be perpendicular to the top surface 111, and the area of ​​the top surface 111 is slightly smaller than the surface area of ​​the aerosol-forming substrate 20.

[0061] The base 112 may include a bottom wall 1121 and a vertical wall 1122. There is a height difference between the top surface 111 and the bottom wall 1121. The vertical wall 1122 connects the bottom wall 1121 and the top surface 111. The vertical wall 1122 may form a certain angle with the top surface 111 and the bottom wall 1121. Exemplarily, the vertical wall 1122 extends along the thickness direction of the aerosol-forming substrate 20, and the top surface 111 and the bottom wall 1121 both form an angle of about 90° with the vertical wall 1122.

[0062] See also Figure 3 and Figure 4 In some embodiments, the cover body 12 includes a top cover 121 and a surrounding wall 122 connected to the top cover 121, the top cover 121 is opposite to and spaced from the boss 11, the energy source 30 is movably disposed on the top cover 121, the surrounding wall 122 extends from the top cover 121 to the boss 11, and the surrounding wall 122 surrounds the heating chamber 101.

[0063] In this way, by arranging the top cover 121 to face and be spaced apart from the boss 11 , the aerosol-forming substrate 20 and the energy source 30 are faced to and spaced apart from each other, and the energy source 30 can move on the top cover 121 relative to the aerosol-forming substrate 20 .

[0064] Specifically, the cover 12 covers the boss 11, the top cover 121, the top surface 111, and the bottom wall 1121 define the heating chamber 101 in the length direction of the heating chamber 10, and the surrounding wall 122 surrounds the heating chamber 101 and defines the heating chamber 101 in the lateral direction of the heating chamber 10. The vertical wall 1122 can be opposite to the part of the surrounding wall 122 close to the bottom wall 1121 in the lateral direction of the heating chamber 10, and define the inner periphery of the heating chamber 101.

[0065] The top cover 121 is directly opposite to the top surface 111 of the boss 11 and is spaced apart by a predetermined distance. The aerosol-forming substrate 20 is placed on the top surface 111, and the aerosol-forming substrate 20 is directly opposite to and spaced apart from the top cover 121. The distance between the aerosol-forming substrate 20 and the top cover 121 may be the difference between the distance between the top cover 121 and the top surface 111 and the thickness H of the aerosol-forming substrate 20. The energy source 30 is movably arranged on the top cover 121, and may be located on a side of the top cover 121 facing the top surface 111, and moves on a side surface of the top cover 121 directly opposite to the top surface 111. In order to stabilize the radiation distance, the distance between the energy source 30 and the aerosol-forming substrate 20 remains substantially unchanged during the movement, and the top cover 121 may be arranged parallel to the top surface 111.

[0066] The bottom wall 1121 of the boss 11 may be opposite to and spaced from the top cover 121, and the distance between the bottom wall 1121 and the top cover 121 is greater than the distance between the top surface 111 and the top cover 121. The surrounding wall 122 may extend from the edge of the top cover 121 to the base 112 of the boss 11, and one end of the surrounding wall 122 away from the top cover 121 may be close to the bottom wall 1121 and form a certain gap with the bottom wall 1121.

[0067] Please continue reading Figure 3 and Figure 4 In some embodiments, an air inlet 102 is formed between the cover body 12 and the boss 11 , and an air outlet 103 is formed on the surrounding wall 122 .

[0068] In this way, the suction airflow can enter from the air inlet 102 close to the base 112 and flow out from the air outlet 103 close to the top cover 121, so that the airflow drives the aerosol to flow and be inhaled.

[0069] Specifically, the gap formed by the end of the surrounding wall 122 away from the top cover 121 and the bottom wall 1121 is the air inlet 102, and the air inlet 102 surrounds the heating chamber 101 along the circumference of the heating cavity 10. The air inlet 102 can be formed at the connection between the surrounding wall 122 and the top cover 121, and the air inlet 102 can pass through the surrounding wall 122 on one side in the horizontal direction of the heating cavity 10. The user can extract and inhale the aerosol through the air inlet 102. During the user's inhalation process, the suction force drives the airflow outside the heating cavity 10 to enter the heating chamber 101 from the air inlet 102 near the bottom wall 1121, and the airflow mixes the aerosol in the heating chamber 101, and finally carries the aerosol out from the air outlet 103 near the top cover 121. The external airflow can be an air flow.

[0070] See also Figure 1 and Figure 3 In some embodiments, the aerosol-forming substrate 20 further includes a nozzle 50 , which is connected to the air outlet 103 , and the user can hold the nozzle in the mouth or nose to inhale the aerosol.

[0071] In some embodiments, the cross-sectional shape of the aerosol-forming substrate 20 along a direction perpendicular to the top cover 121 is circular, and the energy source 30 is capable of moving along an annular path on the top cover 121 .

[0072] In this way, by the energy source 30 moving along the annular path on the top cover 121 , the energy source 30 heats the aerosol-forming substrate 20 in different zones, so that the heating degree of the aerosol-forming substrate 20 at different positions is more even.

[0073] Specifically, as described above, the top cover 121 may be arranged parallel to the top surface 111, and the thickness direction of the aerosol-forming substrate 20 may be perpendicular to the top cover 121 and the top surface 111. The aerosol-forming substrate 20 may be in the shape of a round pancake, and the cross-sectional shape of the aerosol-forming substrate 20 along the thickness direction, that is, along the direction perpendicular to the top cover 121, may be circular. The aerosol-forming substrate 20 may be placed at the center of the top surface 111, and the top surface 111 may be a circle with a radius slightly smaller than that of the aerosol-forming substrate 20. The top cover 121 is directly opposite to the aerosol-forming substrate 20, and the cross-sectional shape of the top cover 121 may be a circle with a radius slightly larger than that of the aerosol-forming substrate 20, and the centers of the top cover 121, the aerosol-forming substrate 20, and the top surface 111 may be located on a straight line perpendicular to the top cover 121 in sequence. A circular slide rail 411 may be formed on one side of the top cover 121 facing the top surface 111, and the slide rail 411 is cocircular with the top cover 121 and has a radius close to the aerosol-forming substrate 20. The energy source 30 may be slidably disposed in the slide rail 411 and move relative to the aerosol-forming substrate 20 along the circular path formed by the slide rail 411. The energy source 30 moves along the circular path, and the projection position of the energy source 30 on the aerosol-forming substrate 20 rotates along the circumference of the aerosol-forming substrate 20, so that the laser beam, infrared rays, ultrasonic waves, microwaves, etc. emitted by the energy source 30 to the aerosol-forming substrate 20 heat different areas on the aerosol-forming substrate 20 as the energy source 30 moves.

[0074] See also Figure 4 In some embodiments, the angle range of each movement of the energy source 30 along the circular path is 15°-90° (including the endpoints).

[0075] In this way, by reasonably setting the angle range of each rotation of the energy source 30, the areas of the heating regions are controlled to be the same and reasonably distributed, so that the aerosols generated in different heating regions have better consistency.

[0076] Specifically, there is usually a certain time interval between each puff of aerosol by the user, which is the puff interval. The energy source 30 can move during the puff interval, and the mouthfeel of the generated aerosol is not easily affected by the puff airflow. The energy source 30 can move multiple times during the puff interval, and each movement of the energy source 30 can form a heating area. The number of heating areas is the number of times the energy source 30 moves during one puff interval.

[0077] One movement of the energy source 30 can be a rotation of a fixed arc length or angle along a circular path, and the area of ​​the heating area formed is basically the same. After each movement, the energy source 30 can be fixed relative to the aerosol-forming substrate 20 and heat the corresponding heating area. The heating time of each heating area by the energy source 30 can be a fixed value. By setting the heating time of each heating area to be constant, the heating degree of the aerosol-forming substrate 20 at different positions is basically the same. Based on the heat release characteristics of the aerosol-forming substrate 20 and the temperature of the energy source 30, the heating time of each heating area by the energy source 30 can range from 1 / 4 to 4 / 3 of the puff interval, ensuring sufficient atomization of the heating area while avoiding burning caused by too long heating time.

[0078] The energy source 30 may rotate along the annular path in a clockwise or counterclockwise direction relative to the aerosol-forming substrate 20. The angle range of each rotation of the energy source 30 along the annular path may be 15°-90°, for example, the angle range of each rotation of the energy source 30 along the annular path may be 15°-87.5°, 21°-73°, 33°-65°, 45°-57°, 50°-80°, 30°-90°. For another example, the angle of each rotation of the energy source 30 along the annular path may be 15°, 18°, 23°, 35°, 42°, 58°, 67.3°, 72°, 90°.

[0079] See also Figure 4 In some embodiments, the aerosol generating device 100 includes a driving component 40 connected to the energy source 30 , and the driving component 40 is used to drive the energy source 30 to move relative to the aerosol-forming substrate 20 .

[0080] In this way, the driving assembly 40 drives the heating element to move, thereby controlling the energy source 30 to move along a predetermined path.

[0081] Specifically, the driving assembly 40 can be arranged outside the heating chamber 101. The driving assembly 40 can include a power source and a transmission mechanism 41. The power source is used to provide driving force. The transmission mechanism 41 is connected to the energy source 30. The transmission mechanism 41 can control the path and direction of movement of the energy source 30. For example, the transmission mechanism 41 can be a slide rail 411 structure, a connecting rod mechanism, a rope mechanism, etc. Figure 4In the illustrated embodiment, the transmission mechanism 41 is a slide rail 411 disposed on the top cover 121. The slide rail 411 is disposed in the heating chamber 101 and is in a circular ring shape that matches the cross-sectional shape of the heating chamber 101. The energy source 30 can be slidably disposed on the slide rail 411, and the energy source 30 moves along the circular path formed by the slide rail 411.

[0082] In the description of this specification, the description with reference to the terms "some embodiments", "illustrative embodiments", "examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0083] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An aerosol generating device, characterized in that: The aerosol generating device comprises: a heating chamber forming a heating chamber for containing an aerosol-forming substrate; and An energy source is disposed in the heating chamber and located above the aerosol-forming substrate. The energy source is used to heat the aerosol-forming substrate to generate an aerosol. The energy source can move relative to the aerosol-forming substrate along a preset path.

2. The aerosol generating device according to claim 1, characterized in that: The energy source is a radiant heat source, and the energy source is configured to be spaced apart from the aerosol-forming substrate.

3. The aerosol generating device according to claim 1, characterized in that: The aerosol-forming substrate is in sheet form, and the surface area of ​​the side of the aerosol-forming substrate opposite to the energy source is 100 mm 2 -4000 mm 2 The thickness of the aerosol-forming substrate along the direction opposite to the energy source ranges from 2 mm to 8 mm.

4. The aerosol generating device according to claim 1, characterized in that: The heating cavity comprises a boss and a cover body opposite to and spaced from the boss, the cover body and the boss are covered to form the heating chamber, and the boss is used to place the aerosol-forming substrate.

5. The aerosol generating device according to claim 4, characterized in that: The boss includes a top surface and a base connected to the top surface, and the aerosol-forming substrate is placed on the top surface.

6. The aerosol generating device according to claim 4, characterized in that: The cover body includes a top cover and a surrounding wall connected to the top cover, the top cover is opposite to and spaced from the boss, the energy source is movably arranged on the top cover, the surrounding wall extends from the top cover to the boss, and the surrounding wall surrounds the heating chamber.

7. The aerosol generating device according to claim 6, characterized in that: An air inlet is formed between the cover body and the boss, and an air outlet is formed on the surrounding wall.

8. The aerosol generating device according to claim 6, characterized in that: The cross-sectional shape of the aerosol-forming substrate along a direction perpendicular to the top cover is circular, and the energy source can move along an annular path on the top cover.

9. The aerosol generating device according to claim 8, characterized in that: The angle range of each movement of the energy source along the annular path is 15°-90°.

10. The aerosol generating device according to claim 1, characterized in that The aerosol generating device comprises a drive assembly connected to the energy source, the drive assembly being used to drive the energy source to move relative to the aerosol-forming substrate.

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