Heating assembly and aerosol generating device

Abstract

The utility model discloses a heating assembly and an aerosol generating device. The heating assembly comprises a containing pipe, a heating element and a screwing device, and the containing pipe is used for containing an atomizing medium; the heating element is approximately cylindrical and is sleeved outside the accommodating pipe; and the screwing device is arranged outside the heating element and is used for being capable of acting to enable the heating element to form an acting trend of reducing the radial size. According to the heating assembly, the radial size of the heating element is reduced through the action of the screwing device until the heating element is tightly attached to the containing pipe in the circumferential direction, so that the heat loss between the heating element and the containing pipe is reduced, and the energy efficiency utilization rate of the heating assembly is improved.

Description

Technical Field

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

[0002] In a circumferential heating aerosol generating device, in order to quickly reach high-temperature heating, a metal wire is usually wound outside the quartz glass tube wall as a heating element to heat the atomization medium in the quartz glass tube. However, due to the smooth wall surface of the quartz glass tube, it is difficult for the metal wire to fully fit with the quartz glass tube, resulting in heat loss. Summary of the Utility Model

[0003] Embodiments of the present application provide a heating component and an aerosol generating device, and are at least used to improve the problem of heat loss.

[0004] The heating component of the embodiment of the present application is used to heat an atomization medium, and includes: a receiving tube for receiving the atomization medium; a heating element, the heating element is generally cylindrical as a whole and sleeved outside the receiving tube; a tightening device arranged outside the heating element, and the tightening device can act to make the heating element have a tendency to reduce the radial dimension.

[0005] In the heating component of the embodiment of the present application, the radial dimension of the heating element is reduced by the action of the tightening device until the heating element is circumferentially pressed against the receiving tube, thereby reducing the heat loss between the heating element and the receiving tube and improving the energy efficiency utilization rate of the heating component.

[0006] In some embodiments, the heating element spirally extends along the axial and circumferential directions of the receiving tube. In other embodiments, the heating element surrounds the receiving tube along the circumferential direction of the receiving tube and has a break in the circumferential direction of the receiving tube.

[0007] In this way, by the heating element spirally extending along the axial and circumferential directions of the receiving tube, the tightening device can act to tighten the spiral heating element, so that the heating element is closely attached to the outer wall of the receiving tube. By the heating element surrounding the receiving tube along the circumferential direction of the receiving tube and having a break in the circumferential direction of the receiving tube, the tightening device can act and push the size of the break to shrink, and further make the heating element closely attached to the outer wall of the receiving tube.

[0008] In some embodiments, the tightening device is sleeved on the axial end of the heating element, and the tightening device is used to apply a tangential force to the heating element when rotating, so that the heating element has a tendency to reduce the radial dimension.

[0009] In this way, a tangential force is applied to the end of the heating element through the tightening device, driving the end of the heating element to rotate, so that the heating element radially shrinks to closely adhere to the outer wall of the accommodating tube, thereby reducing the heat loss between the heating element and the accommodating tube, improving the energy efficiency utilization rate of the heating assembly, and being easy to operate with high structural reliability.

[0010] In some embodiments, the tightening device includes a rotating disk which is formed with a rotating hole. The heating element and the accommodating tube extend into the rotating hole, and the rotating disk abuts against the axial end of the heating element and the outer wall of the accommodating tube through the rotating hole.

[0011] In this way, through the circumferential ends of the heating element and the accommodating tube extending out of the rotating hole, and the rotating disk abutting against the axial end of the heating element and the outer wall of the accommodating tube through the rotating hole, a circumferentially surrounding contact surface is formed on the end of the heating element by the rotating disk. When the rotating disk rotates around the rotating hole, a tangential force is applied to the end of the heating element.

[0012] In some embodiments, there is a frictional resistance between the rotating disk and the accommodating tube along the circumferential or tangential direction of the accommodating tube.

[0013] In this way, through the damping cooperation between the rotating disk and the accommodating tube, when the rotating disk rotates, it can drive the end of the heating element to move circumferentially along the outer wall of the accommodating tube, thereby realizing that rotating the rotating disk pushes the heating element to radially contract and making the heating element close to the outer wall of the accommodating tube.

[0014] In some embodiments, the rotating hole is formed at the rotation center of the rotating disk.

[0015] In this way, since the rotating hole is formed at the rotation center of the rotating disk, the force applied by the rotating disk to the heating element is more evenly distributed circumferentially.

[0016] In some embodiments, the rotating disk is formed with an opening communicating the rotating hole with the outer periphery of the rotating disk. The rotating disk has elasticity along the circumferential direction of the rotating disk to elastically deform and expand the opening when subjected to an external force. The opening is used to allow the accommodating tube to pass through the rotating hole when expanded.

[0017] In this way, when the rotating disk expands the opening under the action of an external force, the rotating disk is sleeved outside the accommodating tube and the heating element, and the assembly is relatively simple.

[0018] In some embodiments, the tightening device further includes a fastening structure for fixing the rotating disk after the rotating disk rotates and adjusts the fitting of the heating element and the accommodating tube.

[0019] In this way, after the rotating disk rotates and adjusts the fitting of the heating element and the receiving tube, the rotating disk is fixed by the fastening structure, so that the rotating disk can apply a predetermined pre-tightening force to the heating element and the receiving tube through the fastening structure. Thus, components such as the heating element, the fastener, and the rotating disk can maintain their initial positions and states during use.

[0020] In some embodiments, the fastening structure includes mounting holes formed on the circumferential side of the rotating hole and fasteners passing through the mounting holes.

[0021] In this way, by passing the fasteners through the mounting holes, the rotating disk is fixedly installed in the heating assembly, the structure is kept stable, and a predetermined fastening force is applied to the rotating disk rotated to the preset position.

[0022] In some embodiments, the fastening structure includes a clamping structure that clamps with the heating element.

[0023] In this way, by clamping with the heating element through the clamping structure, the use of fasteners is saved and the number of parts is reduced.

[0024] In some embodiments, the tightening device is provided with an indicating structure for indicating the circumferential fitting degree between the heating element and the receiving tube.

[0025] In this way, the circumferential fitting degree between the heating element and the receiving tube is indicated by the indicating structure, so as to quantitatively adjust the circumferential fitting degree between the heating element and the receiving tube, and thereby strengthen the control of the heating performance and effect of the heating assembly.

[0026] In some embodiments, the tightening device includes a rotating disk, and the indicating structure includes scales arranged circumferentially on the rotating disk.

[0027] In this way, the scales in the indicating structure correspond to the circumferential fitting degree between the heating element and the receiving tube. By circumferentially arranging scales on the disk surface of the rotating disk, it is convenient to rotate the rotating disk to achieve a predetermined circumferential fitting degree between the heating element and the receiving tube.

[0028] In some embodiments, the heating assembly further includes a fixing device fixedly connected to the tightening device to mount the tightening device outside the heating element.

[0029] In this way, by fixedly connecting the fixing device and the tightening device, the tightening device is mounted outside the heating element, so as to ensure effective abutment between the tightening device and the heating element and act in a preset manner, and further facilitate driving the heating element to deform or move in a preset manner.

[0030] In some embodiments, the fixing device includes a fixing cover and a support cover sleeved outside the heating element, and the fixing cover covers the axial end of the support cover and is fixedly connected to the tightening device.

[0031] In this way, by sleeving the support cover outside the heating element, the fixing cover is closed at the axial end of the support cover and fixedly connected to the tightening device, so as to assemble and position the heating element and the tightening device, and support the overall formation of a stable structure for the heating assembly.

[0032] In some embodiments, the fixing cover and the support cover have infrared reflectivity.

[0033] In this way, by sleeving the support cover outside the heating element and closing the fixing cover at the axial end of the support cover, the infrared radiation generated by the heating element is reflected into the accommodating tube by the infrared reflectivity of the fixing cover and the support cover, thereby reducing heat loss.

[0034] The aerosol generating device according to the embodiment of the present application includes the heating assembly according to any one of the above embodiments, and the heating assembly is used to heat and atomize a medium to generate aerosol.

[0035] The additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present application will become apparent and be easily understood from the description of the embodiments in conjunction with the following drawings, where:

[0037] Figure 1 is a schematic structural diagram of the heating assembly according to the embodiment of the present application;

[0038] Figure 2 is a schematic structural diagram of the heating assembly according to the embodiment of the present application from a top view perspective;

[0039] Figure 3 is Figure 2 a schematic cross-sectional structure diagram of the heating assembly along the A-A direction;

[0040] Figure 4 is Figure 3 an enlarged schematic diagram of part B of the heating assembly;

[0041] Figure 5 is a partial cross-sectional view of the heating assembly according to the embodiment of the present application;

[0042] Figure 6 is an exploded schematic structural diagram of the heating assembly according to the embodiment of the present application;

[0043] Figure 7 is a schematic structural diagram of a heating element according to another embodiment of the present application.

[0044] MAIN ELEMENT SYMBOL DESCRIPTION:

[0045] 100. Heating component; 10. Accommodating tube; 20. Heating element; 21. Fracture; 22. Annular part; 23. Connecting part; 24. Engaging part; 241. First engaging part; 242. Second engaging part; 30. Tightening device; 31. Rotating disk; 312. Rotating hole; 314. Opening; 316. Mounting hole; 32. Fastening structure; 321. Fastener; 33. Indicating structure; 332. Scale; 40. Fixing device; 41. Support cover; 42. Fixing cover; 421. Loading hole; 423. Edge. Detailed implementation manner

[0046] The following describes in detail the implementation manners of the present application. Examples of the implementation manners are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0047] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0048] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mount", "connect", and "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0049] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0050] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure of this application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit this application. In addition, this application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0051] Please refer to Figures 1-5 , the heating component 100 of the embodiment of this application is used to heat the atomization medium. The heating component 100 includes a receiving tube 10, a heating element 20, and a tightening device 30. Among them, the receiving tube 10 is used to accommodate the atomization medium; the heating element 20 is sleeved outside the receiving tube 10; the tightening device 30 is arranged outside the heating element 20, and the tightening device 30 can be actuated to make the heating element 20 have a tendency to reduce the radial dimension.

[0052] In the heating component 100 of the embodiment of this application, by actuating the tightening device 30, the radial dimension of the heating element 20 is reduced until the heating element 20 is tightly attached to the receiving tube 10 in the circumferential direction, thereby reducing the heat loss between the heating element 20 and the receiving tube 10 and improving the energy efficiency utilization rate of the heating component 100.

[0053] Specifically, the atomization medium is a substance that has been processed and can generate aerosol after being heated. The form of the atomization medium can be all-solid or semi-solid, or can also be liquid. For example, the solid atomization medium can be a product of the flowers, stems or leaves of plants prepared by processes such as rolling, thick slurry, die casting, and extrusion. Another example is that the liquid atomization medium can include a liquid composition based on plant extracts and / or various flavoring agents.

[0054] The accommodating tube 10 can be a hollow tube body. At least one end of the two ends of the accommodating tube 10 in its own axial direction forms a through hole to accommodate the atomization medium to be inserted into the hollow interval of the accommodating tube 10. The cross-sectional shape of the accommodating tube 10 can be circular, oval, triangular, square, rhombic, polygonal, star-shaped, racetrack-shaped or other irregular shapes, and the present application does not limit this. Exemplarily, the cross-sectional shape of the accommodating tube 10 is circular, and the accommodating tube 10 is a hollow circular tube with both ends communicating.

[0055] It should be noted that, without special limitations, the "axial direction" in the present application refers to the axial direction of the accommodating tube 10, the "circumferential direction" refers to the direction perpendicular to the above-mentioned axial direction and surrounding the accommodating tube 10 along the outer wall of the accommodating tube 10, and the "radial direction" refers to the direction perpendicular to the above-mentioned axial direction and circumferential direction. The definitions of the "axial direction", "circumferential direction" and "radial direction" are also applicable in the embodiments where the cross-section of the accommodating tube 10 is non-circular.

[0056] The heating element 20 is sleeved outside the accommodating tube 10. To improve the circumferential uniformity of the temperature field, the heating element 20 can be coaxial with the accommodating tube 10. The heating element 20 has electrical conductivity. When the heating element 20 is energized, it converts electrical energy into heat energy to heat the atomization medium, and the heat generated by the heating element 20 can be transmitted to the atomization medium by means of thermal radiation and / or heat transfer. The heating element 20 can be made of a metal material with a certain plasticity.

[0057] The accommodating tube 10 can have insulation and be made of a transparent heat-resistant material, so that the accommodating tube 10 can transmit the infrared radiation generated by the heating element 20, improving the heating efficiency and heat-resistant reliability. For example, the accommodating tube 10 is made of glass, quartz glass, transparent ceramics, etc.

[0058] Optionally, the temperature range that the accommodating tube 10 can withstand is above 600 °C.

[0059] Optionally, the tightening device 30 is arranged at any position in the axial direction of the heating element 20. For example, the tightening device 30 is arranged at the end of the heating element 20 in the axial direction, or for another example, the tightening device 30 is arranged at the middle position of the heating element 20 in the axial direction.

[0060] Optionally, the tightening device 30 can rotate relative to the accommodating tube 10 or move along a certain path. When the tightening device 30 moves or rotates relative to the accommodating tube 10, there is a certain frictional resistance between the tightening device 30 and the outer wall of the accommodating tube 10, and the heating element 20 is driven to move through the frictional resistance. The present application does not limit the path of movement of the tightening device 30.

[0061] It should be noted that the heating element 20 is generally cylindrical as a whole. The radial dimension of the heating element 20 refers to the distance between any two opposite sides of the heating element 20 in the radial direction, rather than the thickness of the heating element 20 in the radial direction. When the radial dimension of the heating element 20 decreases, the heating element 20 tightens in the circumferential direction, and the degree of fitting between the heating element 20 and the outer wall of the receiving tube 10 increases.

[0062] In some embodiments, the tightening device 30 is sleeved on the axial end of the heating element 20. The tightening device 30 is used to apply a tangential force to the heating element 20 when rotating, so as to make the heating element 20 form a working trend of decreasing radial dimension.

[0063] In this way, by applying a tangential force to the end of the heating element 20 through the tightening device 30, driving the end of the heating element 20 to rotate, the heating element 20 radially shrinks to tightly fit the outer wall of the receiving tube 10, thereby reducing the heat loss between the heating element 20 and the receiving tube 10, improving the energy efficiency utilization rate of the heating assembly 100, and having simple operation and high structural reliability.

[0064] Specifically, the rotation direction of the tightening device 30 is parallel to the radial direction of the receiving tube 10. Further, the rotation direction of the tightening device 30 is consistent with the tangential or circumferential direction of the receiving tube 10.

[0065] Please refer to Figure 6 , in some embodiments, the heating element 20 spirally extends along the axial and circumferential directions of the receiving tube 10.

[0066] Please refer to Figure 7 , in some other embodiments, the heating element 20 surrounds the receiving tube 10 along the circumferential direction of the receiving tube 10 and has a break 21 formed in the circumferential direction of the receiving tube 10.

[0067] In this way, by the heating element 20 spirally extending along the axial and circumferential directions of the receiving tube 10, when the tightening device 30 applies a tangential force to the axial end of the heating element 20, the spiral heating element 20 can be tightened, so that the heating element 20 tightly adheres to the outer wall of the receiving tube 10. By the heating element 20 surrounding the receiving tube 10 along the circumferential direction of the receiving tube 10 and having a break 21 formed in the circumferential direction of the receiving tube 10, when the tightening device 30 applies a tangential force to the axial end of the heating element 20, the size of the break 21 can be pushed to shrink, and further the heating element 20 adheres tightly to the outer wall of the receiving tube 10.

[0068] Specifically, the heating element 20 has a certain plasticity. When a force is applied to the axial end of the heating element 20, the heating element 20 can deform and the deformation can be restored. The heating element 20 is sleeved on the accommodating tube 10, and the two axial ends of the heating element 20 are close to the two axial ends of the accommodating tube 10. The direction from one end to the other end of the heating element 20 (or the accommodating tube 10) in the axial direction is defined as the up-down direction. The tightening device 30 rotates and drives the heating element 20 to gradually cling to the outer wall of the accommodating tube 10, and the heating element 20 can be tightened until the heating element 20 is in interference fit with the accommodating tube 10.

[0069] In some embodiments, as Figure 6 shown, the heating element 20 is spiral and can be made by spirally winding a metal wire, a metal strip, or a metal wire rod. At least one of the two axial ends of the heating element 20 is connected to a pin, and the pin is used to supply power to the heating element 20.

[0070] In this embodiment, there can be two tightening devices 30, which are respectively sleeved outside the two axial ends of the heating element 20. The two tightening devices 30 rotate in opposite directions, driving the two axial ends of the heating element 20 to move in opposite directions along the circumferential direction of the heating element 20 respectively, so that the length of the heating element 20 between the two ends is shortened and it shows a radial contraction, and further the heating element 20 clings more closely to the accommodating tube 10. For example, the upper tightening device 30 rotates clockwise, and the lower tightening device 30 rotates counterclockwise. Another example is that the upper tightening device 30 rotates counterclockwise, and the lower tightening device 30 rotates clockwise.

[0071] In this embodiment, the tightening device 30 can also translate relative to the accommodating tube 10 and push or pull the end of the heating element 20 to move along the outer circumference of the accommodating tube 10, so that the two ends of the heating element 20 approach each other on the outer circumference of the accommodating tube 10, thereby reducing the radial dimension of the heating element 20 and making it cling tightly to the outer wall of the accommodating tube 10.

[0072] In other embodiments, as Figure 7 shown, the heating element 20 includes an annular portion 22, a connecting portion 23, and an engaging portion 24. The annular portion 22 surrounds the accommodating tube 10 along the circumferential direction of the accommodating tube 10. The annular portion 22 is an open ring, and the break 21 is formed at the opening of the annular portion 22. The number of the annular portions 22 is multiple, and the multiple annular portions 22 are arranged at intervals along the axial direction of the accommodating tube 10. The connecting portion 23 is connected between two adjacent annular portions 22. The breaks 21 of the multiple annular portions 22 can be in the same position in the circumferential direction of the accommodating tube 10, that is, the breaks 21 of the multiple annular portions 22 are arranged neatly along the axial direction of the accommodating tube 10.

[0073] The engaging portion 24 includes a first engaging portion 241 and a second engaging portion 242. The first engaging portion 241 and the second engaging portion 242 are respectively connected to the annular portions on both sides of the break 21. The first engaging portion 241 and the second engaging portion 242 are opposite to each other along the circumferential direction of the heating element 20. The first engaging portions 241 on the plurality of annular portions 22 can be linearly arranged along the axial direction of the heating element 20, and the plurality of second engaging portions 242 are linearly arranged along the axial direction of the heating element 20 on the other side of the break 21. The distance that the first engaging portion 241 (or the second engaging portion 242) at the two axial ends of the heating element 20 extends outward along the axial direction of the heating element 20 is greater than that of the second engaging portion 242 (or the first engaging portion 241) opposite to itself, and can extend beyond the annular portion 22 at the end of the heating element 20. The portion of the first engaging portion 241 (or the first engaging portion 241) that extends beyond the annular portion 22 at the axial end of the heating element 20 can be engaged with the tightening device 30. The first engaging portion 241 and the second engaging portion 242 that extend beyond the annular portion 22 at the two axial ends of the heating element 20 and are engaged with the tightening device 30 are respectively located on both sides of the break 21 along the circumferential direction.

[0074] In this embodiment, there are two tightening devices 30, which are respectively sleeved outside the two axial ends of the heating element 20. The two tightening devices 30 rotate in opposite directions, driving the first engaging portion 241 and the second engaging portion 242 to move in opposite directions along the circumferential direction respectively, so that the relative distance between the first engaging portion 241 and the second engaging portion 242 at the break 21 is shortened, the heating element 20 contracts in the radial direction, and further the heating element 20 is closer to the receiving tube 10. For example, the upper tightening device 30 rotates clockwise, driving the first engaging portion 241 engaged with the upper tightening device 30 to move clockwise closer to the second engaging portion 242 at the upper end. The lower tightening device 30 rotates counterclockwise, driving the second engaging portion 242 engaged with the lower tightening device 30 to move counterclockwise closer to the first engaging portion 241 at the lower end, thereby driving the size of the break 21 of the plurality of annular portions 22 in the circumferential direction to decrease, the circumferences of the plurality of annular portions 22 to decrease, and the heating element 20 to contract in the radial direction and be close to the receiving tube 10.

[0075] In other embodiments, such as Figure 7The shown heating element 20 surrounds the accommodation tube 10 along the circumferential direction of the accommodation tube 10 and has a break 21 formed in the circumferential direction of the accommodation tube 10. The tightening device 30 abuts against at least one of the first engaging portion 241 or the second engaging portion 242. The tightening device 30 moves or rotates relative to the accommodation tube 10, driving one of the first engaging portion 241 and the second engaging portion 242 to move closer to the other of the first engaging portion and the second engaging portion, or driving the first engaging portion 241 and the second engaging portion 242 to move closer to each other, so that the radial dimension of the heating element 20 decreases. In this embodiment, the tightening device 30 can be arranged at any position such as both axial ends, the middle position, above the middle, or below the middle of the heating element 20. The movement of the tightening device 30 relative to the accommodation tube 10 can be a translation along the radial or tangential direction relative to the accommodation tube 10.

[0076] Optionally, the widths of the plurality of annular portions 22 in the axial direction are not equal, and the width of the annular portion 22 located at the axial end of the heating element 20 is greater than the width of the annular portion 22 between the two ends.

[0077] Optionally, the connecting portion 23 extends along the axial direction of the accommodation tube 10.

[0078] Optionally, the first engaging portion 241 and the second engaging portion 242 are in contact with each other at the break 21, and the dimension of the break 21 in the circumferential direction is close to or equal to 0. When the tightening device 30 applies a tangential force to the engaging portion 24, an interference fit can be formed between the first engaging portion 241 and the second engaging portion 242.

[0079] Please refer to Figure 3 and Figure 6 , in some embodiments, the tightening device 30 includes a rotating disk 31. The rotating disk 31 is formed with a rotating hole 312. The heating element 20 and the accommodation tube 10 extend into the rotating hole 312, and the rotating disk 31 abuts against the axial end of the heating element 20 and the outer wall of the accommodation tube 10 through the rotating hole 312.

[0080] In this way, through the axial ends of the heating element 20 and the accommodation tube 10 extending out of the rotating hole 312, the rotating disk 31 abuts against the axial end of the heating element 20 and the outer wall of the accommodation tube 10 through the rotating hole 312, so that the rotating disk 31 forms a circumferentially surrounding contact surface on the end of the heating element 20. When the rotating disk 31 rotates around the rotating hole 312 as the center, a tangential force is applied to the end of the heating element 20.

[0081] Specifically, the rotation hole 312 is a through hole. The rotation disk 31 and the rotation hole 312 can be in various shapes such as circular, oval, triangular, square, rhombic, polygonal, star-shaped, racetrack-shaped, or other irregular shapes, and the shape of the rotation hole 312 matches the cross-sectional shape of the accommodation tube 10. Exemplarily, the rotation disk 31 is a disk-shaped structure. There are two rotation disks 31, and the two rotation disks 31 are respectively sleeved at both ends of the accommodation tube 10 in the axial direction. The end of the heating element 20 abuts against the rotation disk 31 at the rotation hole 312.

[0082] In some embodiments, there is a frictional resistance between the rotation disk 31 and the accommodation tube 10 along the circumferential or tangential direction of the accommodation tube 10.

[0083] Thus, through the damping cooperation between the rotation disk 31 and the accommodation tube 10, when the rotation disk 31 rotates, it can drive the end of the heating element 20 to move circumferentially along the outer wall of the accommodation tube 10, so as to realize that rotating the rotation disk 31 pushes the heating element 20 to radially contract, and makes the heating element 20 close to the outer wall of the accommodation tube 10.

[0084] Specifically, the diameter of the rotation hole 312 of the rotation disk 31 can be slightly smaller than or equal to the outer diameter of the accommodation tube 10. Referring to Figure 3 and Figure 4 , the rotation disk 31 and the heating element 20 can be in abutment or interference fit with the outer wall surface of the accommodation tube 10. When the rotation disk 31 rotates, a circumferential or tangential frictional resistance is formed between the rotation disk 31 and the accommodation tube 10. The end of the heating element 20 is located at one place in the circumferential direction of the accommodation tube 10 and extends between the accommodation tube 10 and the rotation disk 31. The frictional resistance between the rotation disk 31 and the accommodation tube 10 drives the end of the heating element 20 to move relative to the accommodation tube 10.

[0085] Please refer to Figure 7 , in some embodiments, the rotation hole 312 is formed at the rotation center of the rotation disk 31.

[0086] Thus, by forming the rotation hole 312 at the rotation center of the rotation disk 31, the force exerted by the rotation disk 31 on the heating element 20 is more evenly distributed in the circumferential direction.

[0087] Specifically, the rotation center of the rotation disk 31 can be the geometric center of the rotation disk 31, and the geometric center of the rotation disk 31 is located on the central axis of the accommodation tube 10. For example, the accommodation tube 10 is a circular tube, the rotation disk 31 and the rotation hole 312 are concentric circles, and the centers of the rotation disk 31 and the rotation hole 312 and the center of the cross-section of the accommodation tube 10 are all on the central axis of the accommodation tube 10. When the rotation disk 31 rotates with the center of the circle as the rotation center, the frictional resistance between the accommodation tube 10 in the rotation hole 312 and the rotation disk 31 is more uniform in the circumferential direction. Furthermore, the force exerted on the end of the heating element 20 at any position in the circumferential direction of the accommodation tube 10 by the rotation disk 31 can be consistent.

[0088] Please refer to Figures 1-3 , in some embodiments, the rotating disk 31 is formed with an opening 314 that communicates the rotating hole 312 with the outer periphery of the rotating disk 31. The rotating disk 31 is elastic along the circumferential direction of the rotating disk 31 so as to elastically deform to expand the opening 314 when subjected to an external force. The opening 314 is used to allow the accommodating tube 10 to pass through the rotating hole 312 when expanded.

[0089] In this way, when the rotating disk 31 is subjected to an external force, the opening 314 is expanded, so that the rotating disk 31 is sleeved outside the accommodating tube 10 and the heating element 20, and the assembly is relatively simple.

[0090] Specifically, when the rotating disk 31 is subjected to a force along its radial or tangential direction at the opening 314, it can elastically deform, and the rotating disk 31 on both sides of the opening 314 moves away from each other, causing the opening 314 to expand, and the diameter of the rotating hole 312 increases until it is large enough to allow the accommodating tube 10 to pass through.

[0091] Please refer to Figure 1 and Figure 2 , in some embodiments, the tightening device 30 further includes a fastening structure 32, and the fastening structure 32 is used to fix the rotating disk 31 after the rotating disk 31 rotates and adjusts the fitting of the heating element 20 and the accommodating tube 10.

[0092] In this way, after the rotating disk 31 rotates and adjusts the fitting of the heating element 20 and the accommodating tube 10, the fastening structure 32 fixes the rotating disk 31, so that the rotating disk 31 can apply a predetermined pre-tightening force to the heating element 20 and the accommodating tube 10 through the fastening structure 32, so that components such as the heating element 20, the fastener 321, and the rotating disk 31 can maintain their initial positions and initial states during use.

[0093] Specifically, part of the fastening structure 32 is formed on the tightening device 30, and part of it is formed on the fixing device 40 fixedly arranged relative to the accommodating tube 10. The tightening device 30 rotates by a certain angle to tighten the heating element 20, and after confirming that the circumferential fitting degree of the heating element 20 and the accommodating tube 10 reaches a preset fitting degree, the fastening structure 32 fixes the tightening device 30 relative to the accommodating tube 10 by a detachable connection method such as screwing, riveting, and snap connection.

[0094] The fastening structure 32 can be arranged at both ends in the circumferential direction of the accommodating tube 10. The fastening structure 32 cooperates with the fixing device 40 and the tightening device 30 to axially position the heating element 20.

[0095] Please refer to Figure 2 , Figure 5 and Figure 6, in some embodiments, the fastening structure 32 includes a mounting hole 316 formed on the circumferential side of the rotation hole 312 and a fastener 321 passing through the mounting hole 316.

[0096] In this way, by passing the fastener 321 through the mounting hole 316, the rotating disk 31 is fixedly installed in the heating component 100, maintaining the structural stability and applying a predetermined fastening force to the rotating disk 31 rotated to a preset position.

[0097] Specifically, the mounting hole 316 can extend along the circumferential direction of the rotating disk 31, and the extending path is arc-shaped. The mounting holes 316 can be distributed on the outer side in the radial direction of the rotation hole 312, and two mounting holes 316 opposite to each other in the radial direction of the rotation hole 312 can be arranged on each rotating disk 31. The mounting holes 316 move relative to the fixing device 40 as the rotating disk 31 rotates.

[0098] The fastener 321 can be a bolt, a screw, a rivet, etc., and can be fixed at any position in the circumferential direction of the rotating disk 31 in the mounting hole 316. The fastener 321 cooperates with the mounting hole 316. When the fastener 321 is tightened in the mounting hole 316, a fastening force is applied to the rotating disk 31, and the rotating disk 31 converts the fastening force into a radial or circumferential acting force through the mounting hole 316 and applies it to the heating element 20.

[0099] In some embodiments, the fastener 321 is a set screw. The set screw passes through the mounting hole 316 on the rotating disk 31 and the screw hole on the fixing cover 42, and the set screw is tightened to fixedly install the rotating disk 31 on the fixing cover 42 and apply a predetermined fastening force to the rotating disk 31.

[0100] In some embodiments, the fastening structure 32 includes a clamping structure (not shown in the figure) that clamps with the heating element 20.

[0101] In this way, by clamping with the heating element 20 through the clamping structure, the use of the fastener 321 is saved and the number of parts is reduced.

[0102] Specifically, the clamping structure can be a rib, a clamping block, a clamping groove, a groove, etc., and the heating element 20 can correspondingly form a clamping block or a rib.

[0103] 10. Please refer to Figure 2 , in some embodiments, the tightening device 30 is provided with an indicating structure 33 for indicating the circumferential fitting degree between the heating element 20 and the receiving tube 10.

[0104] In this way, the circumferential fitting degree between the heating element 20 and the receiving tube 10 is indicated by the indicating structure 33, so as to realize quantitative adjustment of the circumferential fitting degree between the heating element 20 and the receiving tube 10, and thereby strengthen the control of the heating performance and effect of the heating component 100.

[0105] Specifically, the indicating structure 33 can be a mechanical structure or an electronic display device. By pre-converting the corresponding relationship between the distance between the heating element 20 and the accommodating tube 10 in the radial direction or the tolerance of the interference fit and the rotation angle of the tightening device 30, the circumferential fitting degree between the heating element 20 and the accommodating tube 10 is quantified, and the indicating structure 33 is used as the carrier for marking the circumferential fitting degree between the heating element 20 and the accommodating tube 10.

[0106] Please refer to Figure 2 , in some embodiments, the tightening device 30 includes a rotating disk 31, and the indicating structure 33 includes graduations 332 arranged circumferentially on the rotating disk 31.

[0107] In this way, the graduations 332 in the indicating structure 33 correspond to the circumferential fitting degree between the heating element 20 and the accommodating tube 10. By circumferentially arranging the graduations 332 on the disk surface of the rotating disk 31, it is convenient to rotate the rotating disk 31 to achieve a predetermined circumferential fitting degree between the heating element 20 and the accommodating tube 10.

[0108] Specifically, the graduations 332 can be distributed on the outer circumference of the rotating disk 31. A rotating hole 312 is formed at the center of the rotating disk 31, and the graduations 332 can also be distributed outside the rotating hole 312. When the rotating disk 31 rotates, the graduations 332 rotate with the rotating disk 31. Since the accommodating tube 10 and the fixing device 40 are relatively fixed, and the end of the heating element 20 is fixed relative to the accommodating tube 10 together with the rotating disk 31, features on the fixing device 40 or the accommodating tube 10, such as corners, vertices, etc., can be selected as reference points. According to the different graduations 332 corresponding to the reference points, the readings of the graduations 332 are read to determine the circumferential fitting degree between the heating element 20 and the accommodating tube 10.

[0109] In some other embodiments, the indicating structure 33 on the rotating disk 31 can be a pointer, and the graduations 332 are set on the accommodating tube 10 or the fixing device 40 (such as the fixing cover 42). The pointer rotates with the rotating disk 31 relative to the accommodating tube 10 and the fixing device 40 and points to different graduation 332 values.

[0110] Please refer to Figure 1 and Figure 5 , in some embodiments, the heating assembly 100 further includes a fixing device 40, and the fixing device 40 is fixedly connected to the tightening device 30 to mount the tightening device 30 outside the heating element 20.

[0111] In this way, by fixedly connecting the fixing device 40 to the tightening device 30 and mounting the tightening device 30 outside the heating element 20, it is ensured that the tightening device 30 is effectively abutted against the heating element 20 and actuates in a preset manner, which is conducive to driving the heating element 20 to deform or move in a preset manner.

[0112] Specifically, the fixing device 40 can be fixedly connected to the rotated tightening device 30 by at least one of the methods such as fixing member connection, screwing, riveting, snap connection, adhesive connection, etc. The fixing device 40 can install the tightening device 30 at any position outside the heating element 20, and the present application does not limit this. The fixing device 40 can apply a supporting force to the tightening device 30 so that the tightening device 30 abuts against the heating element 20.

[0113] The fixing device 40 can serve as the installation base of the fastener 321. For example, the fixing cover 42 can be formed with a screw hole, and the screw hole is located below the installation hole 316. The fastener 321 is a fastening screw, and the fastening screw passes through the installation hole 316 and is tightened in the screw hole, so as to fix the rotating disk 31 in the tightened position.

[0114] Please refer to Figure 5 and Figure 6 , in some embodiments, the fixing device 40 includes a fixing cover 42 and a support cover 41 sleeved outside the heating element 20. The fixing cover 42 covers the axial end of the support cover 41 and is fixedly connected to the tightening device 30.

[0115] In this way, by sleeving the support cover 41 outside the heating element 20, covering the fixing cover 42 at the axial end of the support cover 41 and fixedly connecting it to the tightening device 30, the assembly positioning of the heating element 20 and the tightening device 30 is carried out, and the whole heating assembly 100 is supported to form a stable structure.

[0116] Specifically, the support cover 41 can be formed by sequentially connecting plate-like structures on the outer periphery of the heating element 20 and surrounding the heating element 20. The support cover 41 can also be of other structures. The wall surface of the support cover 41 can be spaced from the heating element 20 by a certain distance in the radial direction. Taking the plane where the axial end of the support cover 41 is located as the reference plane, the projection range of the heating element 20 in the axial direction falls within the projection range of the support cover 41 in the axial direction.

[0117] For the convenience of assembly, the outer contour shape and size of the fixing cover 42 match the cross-sectional shape and size of the support cover 41. A flange 423 forming a certain angle with the main body part of the fixing cover 42 can be formed at the edge of the outer contour of the fixing cover 42, and the flange 423 can be buckled with the support cover 41 and attached to the outer wall surface of the support cover 41.

[0118] The cross-sectional shape of the support cover 41 can be circular, elliptical, triangular, quadrilateral, pentagonal, hexagonal, other polygonal, or rhombus, star, racetrack, olive or other irregular shapes. At least one of the two axial ends of the support cover 41 is open, and the fixed cover 42 covers the open end of the support cover 41. The outer contour shape of the fixed cover 42 can be circular, elliptical, triangular, quadrilateral, polygonal, rhombus, star, racetrack, olive or other irregular shapes. The present application does not limit the outer contour shape of the fixed cover 42 and the cross-sectional shape of the support cover 41. For example, refer to Figure 2 The cross-sectional shape of the support cover 41 and the outer contour shape of the fixed cover 42 are pentagonal.

[0119] The fixed cover 42 is formed with a loading hole 421, which is opposite to the rotating hole 312 of the rotating disk 31 along the axial direction of the accommodating tube 10 to accommodate the accommodating tube 10 and the heating element 20 sleeved on the accommodating tube 10. The diameter of the loading hole 421 is slightly larger than the diameter of the rotating hole 312 and the outer diameter of the accommodating tube 10 to avoid interference when the rotating disk 31 rotates. The loading hole 421 can be located at the geometric center of the fixed cover 42 and can be a concentric circle with the rotating hole 312.

[0120] The two axial ends of the accommodating tube 10 are defined as the upper and lower ends of the heating component 100 , respectively. The fixing cover 42 is respectively sleeved on the upper and lower ends of the accommodating tube 10 , and the two axial ends of the supporting cover 41 are respectively engaged with the edges 423 of the fixing cover 42 at the upper and lower ends.

[0121] In one example, at the axial upper end of the containing tube 10, the rotating disk 31 is stacked on the upper surface of the fixed cover 42; at the axial lower end of the containing tube 10, the rotating disk 31 is stacked on the lower surface of the fixed cover 42, that is, the rotating disk 31 is arranged on the side surface of the fixed cover 42 away from the support cover 41.

[0122] Optionally, the support cover 41 and the fixed cover 42 are split structures and connected by snap connection, screw connection, riveting, etc. The support cover 41 and the fixed cover 42 and the support cover 41 can also be an integrated structure, thereby reducing the number of parts and simplifying the structure of the heating component 100.

[0123] In a specific embodiment, components such as the accommodation tube 10, the heating element 20, the rotating disk 31, the fixed cover 42, the support cover 41, and the fastener 321 are assembled according to the following steps: Step (1), assemble two fixed covers 42 and the support cover 41 on the accommodation tube 10. The fixed cover 42 is sleeved on both axial ends of the accommodation tube 10 through the loading holes 421, and the support cover 41 is located between the two fixed covers 42 and surrounds the accommodation tube 10. Step (2), expand the elastic rotating disk 31 from the opening 314, and insert the accommodation tube 10 into the rotating hole 312 from the opening 314. Step (3), insert the heating element 20 from the rotating hole 312 and the loading holes 421, sleeve it on the accommodation tube 10 and make both axial ends of the heating element 20 flush with or in contact with the rotating disk 31. Step (4), rotate the rotating disk 31 until the reading of the scale 332 shows that the circumferential fitting degree between the heating element 20 and the accommodation tube 10 reaches the preset range. Step (5), use a fastener 321 such as a set screw to fix the rotating disk 31 on the fixed cover 42.

[0124] It can be understood that since there is damping between the rotating disk 31 and the outer wall surface of the accommodation tube 10, by twisting the rotating disk 31, the heating element 20 can be pushed to radially shrink, realizing that the surface of the heating element 20 is close to the accommodation tube 10. The circumferential fitting degree between the heating element 20 and the accommodation tube 10 is visualized through the reading of the scale 332 on the rotating disk 31. When the reading of the scale 332 indicates that the circumferential fitting degree between the heating element 20 and the accommodation tube 10 reaches the preset range, it means that the rotation angle of the rotating disk 31 has reached the required value.

[0125] In some embodiments, the fixed cover 42 and the support cover 41 have infrared reflectivity.

[0126] In this way, by sleeving the support cover 41 outside the heating element 20 and covering the fixed cover 42 at the axial end of the support cover 41, the infrared radiation generated by the heating element 20 is reflected into the accommodation tube 10 by using the infrared reflectivity of the fixed cover 42 and the support cover 41, thereby reducing heat loss.

[0127] Specifically, the support cover 41 surrounds the heating element 20. The accommodation tube 10, the heating part, and the support cover 41 are arranged in sequence from the inside to the outside in the radial direction. The fixed cover 42 is covered at both axial ends of the support cover 41 and sleeved outside the axial ends of the accommodation tube 10. The support cover 41 and the fixed cover 42 reflect the heat generated by the heating element 20 in the form of infrared radiation to the accommodation tube 10, reducing the heat transfer of infrared radiation through the support cover 41 and the fixed cover 42 to the outside.

[0128] The aerosol generating device of the embodiment of the present application includes the heating assembly 100 of any of the above embodiments, and the heating assembly 100 is used to heat and atomize the atomization medium to generate aerosol.

[0129] The aerosol generating device according to the embodiment of the present application includes the heating component 100 of the above embodiment, and thus has all the beneficial effects of the heating component 100 of the above embodiment.

[0130] The aerosol generating device is a structure capable of generating aerosol by electromagnetic heating acting on the atomization medium. The atomization medium is atomized by heat to form aerosol, which can be visible or invisible and may include vapor (for example, fine particulate matter in a gaseous state, which is usually liquid or solid at room temperature), as well as liquid droplets of gas and condensed vapor. The aerosol may contain volatile compounds. The user can inhale the aerosol into the mouth, 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 eating, medicine, health care, and entertainment.

[0131] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "certain embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0132] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heating component for heating an atomized medium, characterized in that: The heating component comprises: A containing tube, the containing tube is used to contain the atomized medium; The heating element is generally cylindrical in shape and is sleeved outside the accommodating tube; A tightening device is arranged outside the heating element, and the tightening device can be actuated to make the heating element form an actuation trend of reducing the radial size.

2. The heating component according to claim 1, characterized in that: The heating element extends spirally along the axial direction and circumferential direction of the accommodating tube; or, The heating element surrounds the accommodating tube along the circumference of the accommodating tube and forms a break in the circumference of the accommodating tube.

3. The heating component according to claim 1, characterized in that: The tightening device is sleeved on the end of the heating element along the axial direction, and is used to apply a tangential force to the heating element when rotating, so that the heating element forms an actuation trend of reducing the radial size.

4. The heating component according to claim 3, characterized in that: The tightening device comprises a rotating disk, the rotating disk is formed with a rotating hole, the heating element and the accommodating tube extend into the rotating hole, and the rotating disk abuts against the axial end of the heating element and the outer wall of the accommodating tube through the rotating hole.

5. The heating component according to claim 4, characterized in that: There is friction resistance between the rotating disk and the accommodating tube along the circumferential direction or tangential direction of the accommodating tube.

6. The heating component according to claim 4, characterized in that: The rotating hole is formed at the rotation center of the rotating disk.

7. The heating component according to claim 4, characterized in that: The rotating disk is formed with an opening connecting the rotating hole and the outer circumference of the rotating disk. The rotating disk has elasticity along the circumference of the rotating disk so as to generate elastic deformation to open the opening when subjected to external force. The opening is used to allow the accommodating tube to pass through the rotating hole when opened.

8. The heating component according to claim 4, characterized in that: The tightening device further comprises a fastening structure, and the fastening structure is used to fix the rotating disk after the rotating disk rotates and the heating element is adjusted to fit the accommodating tube.

9. The heating component according to claim 8, characterized in that: The fastening structure includes a mounting hole formed on a circumferential side of the rotating hole and a fastener penetrating through the mounting hole.

10. The heating component according to claim 8, characterized in that: The fastening structure includes a snap-fit ​​structure snap-fitted with the heating element.

11. The heating component according to claim 1, characterized in that: The tightening device is provided with an indication structure, and the indication structure is used to indicate the heating element.

12. The heating component according to claim 11, characterized in that: The tightening device includes a rotating disk, and the indicating structure includes scales arranged on the rotating disk along the circumference of the rotating disk.

13. The heating component according to claim 1, characterized in that: The heating component further comprises a fixing device, which is fixedly connected to the tightening device so as to install the tightening device outside the heating element.

14. The heating component according to claim 13, characterized in that: The fixing device comprises a fixing cover and a supporting cover sleeved outside the heating element. The fixing cover covers the axial end of the supporting cover and is fixedly connected to the tightening device.

15. The heating component according to claim 14, characterized in that: The fixing cover and the supporting cover have infrared reflectivity.

16. An aerosol generating device, characterized in that: It comprises the heating component according to any one of claims 1 to 15, wherein the heating component is used to heat an atomizing medium to generate an aerosol.

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