Aerosol generating device and heating component thereof

Abstract

The utility model relates to an aerosol generating device and a heating component thereof. The aerosol generating device includes a heating component and a control circuit connected to the heating component. The heating component includes: a tube body, which is capable of transmitting infrared light and has a plug-in end for inserting into an aerosol generating product; a heating element, which is at least partially arranged in the tube body; a flange, which is sleeved on an end of the tube body away from the plug-in end; and a support member, which supports the heating element and includes a supporting portion arranged in the tube body and a fixing portion located outside the tube body. The fixing portion is at least partially located in the flange and is fixed to the flange by snapping, so as to fix the support member, the flange and the tube body together. The structure is simple and easy to assemble, and the displacement of the heating structure due to the plugging and unplugging of the aerosol generating product can be prevented.

Description

Technical Field

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

[0002] In the aerosol generating device of the related art, the heating component usually includes a heating structure and a flange. One end of the heating structure passes through the connection hole of the flange, and the heating structure is positioned in the aerosol generating device through the flange. Therefore, the connection between the heating structure and the flange is critical, which is to prevent the displacement of the heating structure due to the plugging and unplugging of the aerosol generating product, and to improve the assembly accuracy and assembly efficiency of the heating component during the assembly process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an improved heating component and further provide an improved aerosol generating device in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the utility model to solve the technical problem is: construct a heating component, including:

[0005] a tubular body capable of transmitting infrared light, the tubular body having a plug end for insertion into the aerosol-generating article;

[0006] A heating element is at least partially disposed in the tube body;

[0007] A flange is sleeved on an end of the tube body away from the plug end; and

[0008] A support member, supporting the heating element, and comprising a support portion disposed in the tube body and a fixing portion located outside the tube body;

[0009] The fixing portion is at least partially located in the flange and is snap-fastened to the flange.

[0010] In some embodiments, a protrusion is protruding from the outer wall surface of the fixing portion, and a groove that interlocks with the protrusion is provided on the flange.

[0011] In some embodiments, the flange is further provided with a rotating groove and a sliding groove which are sequentially connected to the clamping groove.

[0012] The rotation groove extends along the circumference of the flange.

[0013] The slide groove extends along the axial direction of the flange and passes through an end surface of the flange away from the plug-in end.

[0014] A limiting boss for clamping the protrusion is formed on one side of the clamping slot close to the sliding slot.

[0015] In some embodiments, a connecting hole is formed through the flange, a limiting step is protruded from the inner side of the connecting hole, one end of the tube body away from the plug-in end abuts against the limiting step, a step surface is formed at the intersection of the outer surface of the fixing portion and the supporting portion, and the step surface and the limiting step are spaced apart.

[0016] In some embodiments, the heating component further includes a sealing ring disposed between the step surface and the limiting step.

[0017] In some embodiments, the heat generating assembly further includes a sealing structure disposed between the tube body and the flange.

[0018] In some embodiments, the heating element includes a heating body disposed in the tube body, and the heating body is at least partially spaced apart from the tube body.

[0019] In some embodiments, the heat generating component further comprises:

[0020] An electrical lead extending from an end surface of the fixing portion away from the plug end; and

[0021] The adhesive is arranged at an end of the fixing portion away from the plug-in end, and fixes the electric lead to the fixing portion.

[0022] In some embodiments, an end surface of the fixing portion away from the plug-in end is recessed to form a sealing cavity, and the adhesive is at least partially disposed in the sealing cavity.

[0023] The utility model also provides an aerosol generating device, comprising the heating component as described above and a control circuit connected to the heating component.

[0024] The implementation of the utility model has at least the following beneficial effects: the support member and the flange are fixed to each other by snapping, thereby fixing the support member, the flange and the tube body together, with a simple structure and easy assembly, and can prevent the displacement of the heating structure due to the insertion and removal of the aerosol generating product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0026] Figure 1 It is a schematic diagram of the main structure of the aerosol generating system in some embodiments of the utility model;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the heating component in some embodiments of the utility model;

[0028] Figure 3 yes Figure 2A schematic diagram of the longitudinal cross-sectional structure of the heating component shown;

[0029] Figure 4 yes Figure 2 A schematic diagram of the exploded structure of the heat generating component shown;

[0030] Figure 5 yes Figure 4 A schematic diagram of the three-dimensional structure of the middle support member;

[0031] Figure 6 yes Figure 4 Schematic diagram of the three-dimensional structure of the middle flange. DETAILED DESCRIPTION

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described in detail with reference to the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0033] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly defined. In addition, in the present invention, unless otherwise clearly defined and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; 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, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0034] Figure 1 The aerosol generating system 100 in some embodiments of the utility model is shown, and the aerosol generating system 100 may include an aerosol generating device 1 and an aerosol generating product 2. The aerosol generating product 2 can be movably plugged into the aerosol generating device 1, so that it is convenient to take out and replace a new aerosol generating product 2 for continued use after heating is completed. The aerosol generating device 1 can bake and heat the aerosol generating product 2 plugged therein after power is turned on, so as to release the aerosol extract in the aerosol generating product 2 without burning.

[0035] In some embodiments, the aerosol generating product 2 may be cylindrical, and of course, in other embodiments, the aerosol generating product 2 may also be in other cylindrical shapes such as elliptical cylinders, polygonal cylinders, etc. The aerosol generating product 2 may include solid materials in the form of strips, sheets, particles, etc. made from leaves and / or stems of plants (such as tobacco or tea leaves), and aroma components may be further added to the solid materials.

[0036] The aerosol generating device 1 may include a housing 40 and a heating component 10, a battery 20 and a circuit board 30 contained in the housing 40. The circuit board 30 is electrically connected to the heating component 10 and the battery 20, respectively, and is provided with a relevant control circuit for controlling the power on and off of the heating component 10 by the battery 20. A socket 41 is provided on the top wall of the housing 40, and the aerosol generating product 2 can be at least partially inserted into the housing 40 through the socket 41. The heating component 10 can be at least partially inserted into the aerosol generating product 2, and the aerosol generating product 2 is heated by heat conduction and / or radiated infrared light, so that the aerosol generating product 2 generates an aerosol for the user to inhale. The shape of the heating component 10 is not limited, for example, it can be in the shape of a rod or a sheet.

[0037] In some embodiments, the heating component 10 may include a heating structure 19 and a flange 14. The flange 14 is sleeved on the heating structure 19, and the heating structure 19 is fixed in the housing 40 through the flange 14.

[0038] like Figures 2 to 5 As shown, the heating structure 19 may include a tube body 11 and a heating element 12 at least partially disposed in the tube body 11. The heating element 12 includes a heating body 121, and the heating body 121 can radiate infrared light after being heated. The tube body 11 allows infrared light to pass through, and the tube body 11 is covered outside the heating body 121. The infrared light radiated by the heating body 121 can pass through the tube body 11 into the aerosol generating product 2 to heat the aerosol generating product 2.

[0039] In some embodiments, when powered on, the heating body 121 can quickly heat up to about 1000°C, while the surface temperature of the tube body 11 can be controlled at about 350°C, and the atomization temperature of the aerosol generating product 2 can be controlled at 300°C to 350°C, thereby achieving precise atomization of the aerosol generating product 2 mainly in the infrared light 2μm to 4.75μm band and 8μm to 11μm band.

[0040] In some embodiments, the tube body 11 may be a quartz tube. The tube body 11 can transmit infrared light radiated by the heating element 12, and can also heat the aerosol generating product 2 in contact therewith by heat conduction. The tube body 11 itself can also radiate far infrared after being heated. Of course, in some other embodiments, the tube body 11 is not limited to a quartz tube, and it can also be other light-transmitting materials that can be transmitted by light waves, such as transparent ceramics, diamonds, etc. The tube body 11 and the heating element 12 are at least partially spaced apart, and the tube body 11 and the heating element 12 form an electric heating structure to prevent the heating element 12 from directly contacting the aerosol generating product 2.

[0041] A cavity 110 is formed in the tube body 11 for accommodating at least part of the heating element 12. The tube body 11 has a plug end 114 for inserting into the aerosol generating article 2, and an end of the tube body 11 away from the plug end 114 has a nozzle 113, and the heating element 12 can be loaded into the cavity 110 through the nozzle 113. The cavity 110 can be non-sealed, and when the heating element 12 is installed therein, the cavity 110 does not need to be evacuated or filled with inert gas. Of course, in other embodiments, the cavity 110 can also be sealed, and when the heating element 12 is installed therein, the cavity 110 can be evacuated or filled with inert gas.

[0042] In some embodiments, the tube body 11 may include a main body 111 and a pointed top 112 disposed at one end of the main body 111. The main body 111 may be a hollow circular tube. Of course, in other embodiments, the main body 111 is not limited to a circular tube, and may also be a square tube, an elliptical tube, or a flat tube (sheet) or other shapes.

[0043] The pointed top portion 112 is disposed at one end of the main body 111 away from the nozzle 113. The pointed top portion 112 may be tapered, and its outer diameter gradually decreases in the direction away from the main body 111. The heating component 10 may be conveniently inserted into the aerosol generating product 2 through the pointed top portion 112. The pointed top portion 112 may be integrally formed with the main body 111. Of course, in other embodiments, the pointed top portion 112 and the main body 111 may also be formed separately and then assembled together.

[0044] The heating element 12 may include a heating body 121 and a first electrode lead 122 and a second electrode lead 123 respectively connected to the two electrodes of the heating body 121. The outer surface of the heating body 121 is at least partially spaced apart from the inner surface of the tube body 11. In some embodiments, the entire outer surface of the heating body 121 is spaced apart from the inner surface of the tube body 11, and can radiate infrared light in the energized state, and the infrared light can pass through the tube body 11 to the aerosol generating article 2. In other embodiments, the outer surface of the heating body 121 and the inner surface of the tube body 11 may also be partially in contact and partially spaced apart.

[0045] The heating body 121 may include a heating substrate and a heat radiation layer disposed on the heating substrate. The heating substrate may generate heat when powered on. The heating substrate may be a heating wire or a heating sheet, which may be made of metal materials such as nickel-chromium alloy (such as nickel-chromium alloy wire), iron-chromium-aluminum alloy (such as iron-chromium-aluminum alloy wire) and the like having good high-temperature oxidation resistance, high stability, and not easy to deform. The heat radiation layer may be an infrared layer, which may be formed on the heating substrate under high-temperature heat treatment and may radiate infrared light after being heated. In some embodiments, the heating body 121 may further include an anti-oxidation layer disposed between the heating substrate and the heat radiation layer. In some embodiments, the heating substrate is subjected to high-temperature heat treatment and a dense oxide film is generated on its own surface, and the oxide film may form an anti-oxidation layer.

[0046] In some embodiments, the heating body 121 has a longitudinal structure, such as a hollow spiral structure, which can be wound or assembled by at least one heating wire. Of course, in other embodiments, the spiral structure can also be formed by etching on the heating tube. The outer surface of the heating wire can be provided with an infrared layer, and the heating wire is electrically heated, and the infrared layer radiates infrared light after being heated. The heating wire can be a round wire. Of course, in other embodiments, the heating wire is not limited to a round wire.

[0047] In some embodiments, the heating body 121 may have a single spiral structure formed by winding a monofilament, which may include a central rod 1212 and a spiral portion 1211 wound outside the central rod 1212. The central rod 1212 may be a straight rod, which may be coaxially arranged with the spiral portion 1211 and the tube body 11, but is not limited to a coaxial arrangement. The two free ends of the spiral portion 1211 are respectively located at two opposite ends of its axial direction. One end of the central rod 1212 facing the pointed top 112 (the upper end is shown in the figure) is connected to one end of the spiral portion 1211 facing the pointed top 112. One end of the central rod 1212 facing the nozzle 113 (the lower end is shown in the figure) can pass through the spiral portion 1211, which is convenient for welding and connection with the first electrode lead 122. The second electrode lead 123 is welded and connected to one end of the spiral portion 1211 facing the nozzle 113. In this way, the first electrode lead 122 and the second electrode lead 123 are both led out from the lower end of the heating body 121, and the lead-out and welding operations are more convenient.

[0048] In other embodiments, the spiral portion 1211 of the heating body 121 may also have a hollow double helix structure. Here, the double helix structure refers to a structure having two spiral lines in parallel, which can be formed by folding a single heating wire in half and then winding it in two strands. The two free ends of the spiral portion 1211 are both located at the same axial end, that is, both are located at the lower end or the upper end of the heating body 121. Preferably, the two free ends of the spiral portion 1211 are both located at the lower end of the heating body 121, which is convenient for leading out the electrode lead. In this way, the heating body 121 may not have a center rod.

[0049] In some embodiments, the spirals of the spiral portion 1211 may be distributed at equal intervals. Of course, in other embodiments, the spirals of the spiral portion 1211 may be arranged to be distributed at non-equal intervals according to the temperature field distribution requirements. For example, the interval between the spirals of the spiral portion 1211 may gradually increase or decrease from bottom to top, or the interval between the spirals of the spiral portion 1211 at its two end portions may be smaller or larger than the interval between the spirals in its middle portion.

[0050] In some embodiments, the heating component 10 may further include a temperature measuring element 15 for monitoring the temperature in the tube body 11. The temperature measuring element 15 may be a thermocouple, which may include a temperature measuring probe 151 and two temperature measuring leads 152 connected to the temperature measuring probe 151. The temperature measuring probe 151 is disposed in the tube body 11 and may be disposed in contact with the inner wall of the tube body 11.

[0051] In some embodiments, the heating structure 19 may further include a support member 13, which is at least partially installed in the tube body 11 and supports the heating element 12 and the temperature measuring element 15. The support member 13 may be columnar, and it may be located below the spiral portion 1211 in the axial direction. The first electrode lead 122 and / or the second electrode lead 123 and / or the temperature measuring element 15 may pass through the support member 13, or be arranged between the support member 13 and the tube body 11. The support member 13 has an end face 1353 away from the plug end 114, and the electrical lead 190 (including the first electrode lead 122, the second electrode lead 123 and the two temperature measuring leads 152) may pass through the end face 1353 to facilitate connection with an external control circuit.

[0052] The support member 13 can be made of insulating materials such as ceramic, quartz or high-temperature resistant plastic, and can be used to insulate and separate the first electrode lead 122 , the second electrode lead 123 and the two temperature measurement leads 152 .

[0053] In some embodiments, at least one channel 130 may be provided on the support member 13 for the first electrode lead 122 and / or the second electrode lead 123 and / or the temperature measuring element 15 to pass through. The at least one channel 130 may be provided on the outer surface of the support member 13 and / or be provided through the support member 13, and may extend along the axial direction of the support member 13.

[0054] In some embodiments, the at least one channel 130 may include a first channel 131, a second channel 132, and a third channel 133. The first channel 131 may axially penetrate both ends of the support member 13 and may be coaxially arranged with the support member 13. The second channel 132 and the third channel 133 may be located at two opposite radial sides of the support member 13, respectively. The first channel 131 and the second channel 132 may allow the first electrode lead 122 and the second electrode lead 123 to pass through, respectively. The third channel 133 may be used for the temperature measuring element 15 to pass through.

[0055] To further improve the fixing effect, adhesive can be used for glue dispensing to fix the electric lead 190 and the support member 13 to prevent the electric lead 190 from shifting due to pulling during the assembly process. Of course, in other embodiments, the first electrode lead 122 and / or the second electrode lead 123 and / or the temperature measuring element 15 can also be directly fixed to the outer surface of the support member 13 by glue dispensing, so that the first channel 131 and / or the second channel 132 and / or the third channel 133 can also be omitted.

[0056] In this embodiment, an adhesive 17 is provided at one end of the support member 13 away from the plug end 114, and the adhesive 17 can bond and fix each electrical lead 190 to the support member 13. The adhesive 17 can be made of, but not limited to, a curing agent such as resin, inorganic glue, organic glue, etc.

[0057] In some embodiments, the end surface 1353 of the support member 13 may be recessed to form a sealed cavity 1350, which may be coaxially arranged with the end surface 1353 but is not limited to a coaxial arrangement. The adhesive 17 is at least partially arranged in the sealed cavity 1350, and the sealed cavity 1350 can facilitate the dispensing operation of the adhesive 17. Preferably, the lower end surface of the adhesive 17 (the end surface away from the plug end 114) may be flush with the end surface 1353 of the support member 13, or the lower end surface of the adhesive 17 may also be located in the sealed cavity 1350 to prevent the adhesive 17 from being exposed and affecting the aesthetics. Of course, in other embodiments, the lower end surface of the adhesive 17 may also extend out of the end surface 1353 of the support member 13.

[0058] In some other embodiments, the end surface 1353 of the support member 13 may not be formed with the sealing cavity 1350 , and the adhesive 17 may be directly disposed on the end surface 1353 .

[0059] In some embodiments, a partition portion 1313 is provided on the support member 13 . The partition portion 1313 is protruding from the upper end surface of the support member 13 and is located between the third channel 133 and the first channel 131 , and is used to separate the temperature measuring element 15 and the first electrode lead 122 .

[0060] In some embodiments, a partition 1331 may also be provided in the third channel 133 to separate the two temperature measuring leads 152. In some embodiments, the partition 1331 may be provided at the upper portion of the third channel 133. Of course, in other embodiments, the partition 1313 and / or the partition 1331 may also be omitted.

[0061] The flange 14 can be sleeved on one end (the lower end in the figure) of the tube body 11 away from the pointed top 112, and is used to support the tube body 11 and the support member 13. A connecting hole 140 is formed through the flange 14, and a limiting step 143 is protruded from the inner side of the connecting hole 140. The limiting step 143 divides the connecting hole 140 into a first hole portion 141 located at the upper side and a second hole portion 142 located at the lower side. The lower end of the tube body 11 can be set in the first hole portion 141 and can be against the limiting step 143.

[0062] In some embodiments, a sealing structure 16 may be provided between the tube body 11 and the flange 14. The sealing structure 16 is at least partially provided between the outer wall surface of the lower end of the tube body 11 and the inner wall surface of the first hole portion 141, and can prevent liquid (e.g., condensate) from contaminating components such as the battery downward. The sealing structure 16 may include an adhesive and / or a sealing ring. The sealing ring may be made of a sealing material such as silicone, and the tube body 11 may be interference-fitted with the flange 14 through the sealing ring, thereby improving the sealing between the tube body 11 and the flange 14 and making the fixation between the tube body 11 and the flange 14 more secure. The adhesive may be, but is not limited to, a curing agent such as resin, inorganic glue, or organic glue, and the adhesive may bond the tube body 11 and the flange 14 together, thereby playing a role of fixing and sealing. The tube body 11 is fixed to the flange 14 through the adhesive, and then fixed in the housing 40 through the flange 14, thereby preventing the displacement of the heating structure 19 caused by the insertion and removal of the aerosol generating product 2.

[0063] The support member 13 may include a support portion 134 and a fixing portion 135 axially disposed at the lower end of the support portion 134. The support portion 134 is disposed in the tube body 11, and the fixing portion 135 is located outside the tube body 11 and at least partially disposed in the second hole portion 142. A gap is provided between the support member 13 and at least a portion of the inner wall of the second hole portion 142, and the gap is not too large, otherwise it is not conducive to the positioning of the support member 13 in the flange 14. In some embodiments, the gap may be less than or equal to 0.2 mm.

[0064] The lower end surface of the fixing portion 135 (i.e., the end surface 1353) can extend out of the lower end surface of the flange 14. In other embodiments, the lower end surface of the fixing portion 135 can also be flush with the lower end surface of the flange 14, or the lower end surface of the fixing portion 135 can also be located in the second hole portion 142.

[0065] A step surface 1354 is formed at the intersection of the outer surface of the fixing portion 135 and the supporting portion 134. Specifically, the cross-sectional dimensions of the fixing portion 135 may be greater than the cross-sectional dimensions of the supporting portion 134, so that the upper end surface of the fixing portion 135 forms a step surface 1354. In the present embodiment, the outer shapes of the fixing portion 135 and the supporting portion 134 are both roughly cylindrical, and the cross-sectional dimensions thereof are their respective outer diameter dimensions. Of course, in other embodiments, the outer shapes of the fixing portion 135 and / or the supporting portion 134 may also be in other shapes, for example, the outer shapes of the fixing portion 135 and / or the supporting portion 134 may also be in a square column shape or a quasi-square column shape, in which case the cross-sectional dimensions thereof are the length dimension and / or width dimension of their cross-section; or, the outer shapes of the fixing portion 135 and / or the supporting portion 134 may also be in an elliptical column shape or a quasi-elliptical column shape, in which case the cross-sectional dimensions thereof are the major axis dimension and / or the minor axis dimension.

[0066] The step surface 1354 and the limiting step 143 may be spaced apart to facilitate heat insulation. In some embodiments, the heating component 10 further includes a sealing ring 18, which may be sleeved on the support portion 134 and may rest between the step surface 1354 and the limiting step 143. The sealing ring 18 may be an O-ring, which may be made of an elastic material such as silicone. The sealing ring 18 can prevent liquids (such as condensate) from contaminating components such as batteries downward. Of course, in other embodiments, a sealing ring 18 may not be provided between the step surface 1354 and the limiting step 143, thereby forming a cavity between the step surface 1354 and the limiting step 143, which can serve as heat insulation.

[0067] The upper portions of the second channel 132 and the third channel 133 may be respectively disposed on the radially opposite outer surfaces of the support member 13 , and the lower portions of the second channel 132 and the third channel 133 penetrate the fixing portion 135 in the axial direction.

[0068] In some embodiments, the support member 13 and the flange 14 can be fixed to each other by a snap-fit ​​structure, which has a simple structure, is easy to assemble, and can prevent the heating structure 19 from shifting due to the insertion and removal of the aerosol generating article 2. Figures 4 to 6As shown, in some embodiments, the outer wall surface of the fixing portion 135 may be protrudingly provided with a protrusion 1351, and the flange 14 is provided with a groove 1421 that matches the protrusion 1351. The number of protrusions 1351 and grooves 1421 is not limited, and it can be one or more. In this embodiment, there are two grooves 1421 and two protrusions 1351. The two protrusions 1351 can be symmetrically arranged on the radial sides of the fixing portion 135. The two grooves 1421 can be respectively arranged on the radial opposite sides of the flange 14, and can be symmetrically arranged relative to the central axis of the flange 14. After the support member 13 and the flange 14 are mutually clamped, glue can also be applied in the groove 1421 for bonding and fixing. Of course, bonding and fixing can also be performed between the fixing portion 135 and the second hole portion 142 by applying glue.

[0069] In some embodiments, the groove 1421 may penetrate the inner and outer sides of the side wall of the flange 14, and may include a clamping groove 1422, a rotating groove 1423, and a sliding groove 1424 that are connected in sequence. Among them, the clamping groove 1422 is used to buckle and fix the protrusion 1351. A limiting boss 1426 is formed on one side of the clamping groove 1422 close to the sliding groove 1424 to limit the protrusion 1351 in the clamping groove 1422. The sliding groove 1424 may extend axially upward from the lower end surface of the flange 14, and the rotating groove 1423 may extend circumferentially of the flange 14, and the circumferential sides of the rotating groove 1423 are respectively connected with the upper end of the sliding groove 1424 and the groove 1421.

[0070] The sealing ring 18 can also facilitate the assembly of the support member 13 and the flange 14, and play a role in fastening the support member 13 and the flange 14. During installation, the support member 13 can be installed from the lower side of the flange 14, and the support member 13 can be pushed so that the protrusion 1351 slides upward from the slide groove 1424 to the rotation groove 1423. At this time, the sealing ring 18 will be compressed to a certain extent. Then, the support member 13 is rotated by a certain angle so that the protrusion 1351 rotates over the limiting boss 1426 and rotates into the groove 1421. The sealing ring 18 will rebound to a certain extent due to the disappearance of the thrust, so that the protrusion 1351 retreats and abuts against the limiting boss 1426, thereby clamping the protrusion 1351 and preventing the protrusion 1351 from retreating further.

[0071] In some embodiments, a guide surface 1425 may be formed on one side of the limiting boss 1426 close to the slide groove 1424, and the guide surface 1425 may include an arc surface and / or an inclined plane, so that the protrusion 1351 can smoothly slide over the limiting boss 1426 and enter the slot 1422. Of course, a guide surface 1352 may also be formed on the lower side of the protrusion 1351, and the guide surface 1352 may include an arc surface and / or an inclined plane, and the protrusion 1351 can smoothly slide over the limiting boss 1426 and enter the slot 1422 through the guide surface 1352.

[0072] The assembly steps of the heating component 10 can be: S1, assemble the tube body 11 and the flange 14 together through the sealing structure 16 to form a tube body assembly; S2, assemble the heating element 12 to the support 13; S3, hang the temperature measuring probe 151 of the temperature measuring element 15 on the top of the support 13, and inject glue at the bottom of the support 13, so that the support 13, the heating element 12, and the temperature measuring element 15 are integrated to form a heating element assembly; S4, assemble the sealing ring 18 into the flange 14, insert the heating element assembly into the tube body assembly, and clamp the groove 1422 through the protrusion 1351, so that the heating element assembly and the tube body assembly are buckled and fixed to each other.

[0073] It can be understood that the above-mentioned technical features can be used in any combination without limitation.

[0074] The above embodiments only express the specific implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. A heating component, characterized in that: include: A tube (11) that is transparent to infrared light and has a plug end (114) for inserting into an aerosol generating article (2); A heating element (12) is at least partially disposed in the tube body (11); A flange (14) is sleeved on an end of the tube body (11) away from the plug end (114); and A support member (13) supports the heating element (12) and comprises a support portion (134) disposed in the tube body (11) and a fixing portion (135) located outside the tube body (11); The fixing portion (135) is at least partially located in the flange (14) and is snap-fastened to the flange (14).

2. The heating component according to claim 1, characterized in that: A protrusion (1351) is protruding from the outer wall surface of the fixing portion (135), and a slot (1422) that is interlocked with the protrusion (1351) is provided on the flange (14).

3. The heating component according to claim 2, characterized in that: The flange (14) is also provided with a rotating groove (1423) and a sliding groove (1424) which are sequentially connected to the clamping groove (1422). The rotation groove (1423) extends along the circumference of the flange (14). The slide groove (1424) extends along the axial direction of the flange (14) and passes through an end surface of the flange (14) away from the plug end (114). A limiting boss (1426) for clamping the protrusion (1351) is formed on one side of the clamping slot (1422) close to the sliding slot (1424).

4. The heating component according to claim 1, characterized in that: A connecting hole (140) is formed through the flange (14), and a limiting step (143) is protruding from the inner side of the connecting hole (140). The end of the tube body (11) away from the plug-in end (114) abuts against the limiting step (143). A step surface (1354) is formed at the intersection of the outer surfaces of the fixing portion (135) and the supporting portion (134), and the step surface (1354) is spaced apart from the limiting step (143).

5. The heating component according to claim 4, characterized in that: The heating component also includes a sealing ring (18) arranged between the step surface (1354) and the limiting step (143).

6. The heating component according to claim 1, characterized in that: The heating component also includes a sealing structure (16) arranged between the tube body (11) and the flange (14).

7. The heating component according to claim 1, characterized in that: The heating element (12) comprises a heating body (121) arranged in the tube body (11); the heating body (121) and the tube body (11) are at least partially spaced apart from each other.

8. The heating component according to any one of claims 1 to 7, characterized in that: The heating component also includes: an electrical lead (190) extending through an end surface of the fixing portion (135) away from the plug end (114); and An adhesive (17) is provided at an end of the fixing portion (135) away from the plug-in end (114), and fixes the electrical lead (190) to the fixing portion (135).

9. The heating component according to claim 8, characterized in that: The end surface of the fixing portion (135) away from the plug-in end (114) is recessed to form a sealing cavity (1350), and the adhesive (17) is at least partially disposed in the sealing cavity (1350).

10. An aerosol generating device, characterized in that: It comprises the heating component according to any one of claims 1 to 9 and a control circuit connected to the heating component.

Images