Atomization heating structure and heating non-combustion atomizer

Abstract

The utility model discloses an atomization heating structure and a heat-not-burn atomizer, and relates to the technical field of electronic atomization, and the atomization heating structure comprises a heating cylinder, a heating assembly and a base material layer. The opening of the heating cylinder is used for inserting an aerosol-forming substrate into the heating cylinder, an airflow channel is formed in the heating cylinder, and the airflow channel is respectively communicated with the outside and the end face of the aerosol-forming substrate in the heating cylinder. A protruding part protruding outwards in the radial direction is arranged at the position of a cylinder opening of the heating cylinder, and the base material layer is fixed to the portion, between the protruding part and the cylinder bottom of the heating cylinder, of the outer side wall of the heating cylinder. The heating assembly is fixed on the base material layer. The base material layer is additionally arranged between the heating cylinder and the heating assembly, the heating assembly is fixed on the base material layer, and the base material layer fixed with the heating assembly is fixed on the outer side wall of the heating cylinder between the convex part and the cylinder bottom of the heating cylinder, so that the heating assembly is indirectly fixed on the outer side wall of the heating cylinder, and the difficulty of fixing the heating assembly on the heating cylinder is reduced.

Description

Technical Field

[0001] The present application relates to the field of electronic atomization technology, and in particular to an atomization heating structure and a heat-without-combustion atomizer. Background Art

[0002] Heat-not-burn atomizers include an atomizing and heating structure that heats the atomized component to produce a substance that can be inhaled by the user. Existing atomizing and heating structures heat the atomized component via a hot air flow from the sidewall. However, when the outer wall of the heating element in an atomizing and heating structure has a raised structure, securing the heating assembly to the outer wall of the heating element presents difficulties. Utility Model Content

[0003] The present application provides an atomizing heating structure and a heat-without-combustion atomizer, the main purpose of which is to reduce the difficulty of fixing the heating component on the heating tube.

[0004] According to a first aspect of the present application, an atomizing heating structure is provided, comprising:

[0005] a heating tube, wherein the tube opening of the heating tube is used for inserting the aerosol-forming substrate into the heating tube, and an air flow channel is formed in the heating tube, wherein the air flow channel is respectively connected to the outside and the end surface of the aerosol-forming substrate placed in the heating tube;

[0006] A base material layer, wherein a protrusion protruding radially and outward is provided at the opening of the heating tube, and the base material layer is fixed to the outer wall of the heating tube between the protrusion and the bottom of the heating tube; and

[0007] A heating component is fixed to the substrate layer.

[0008] In one embodiment, the substrate layer is a sheet layer manufactured by a tape casting process, and / or the thickness of the substrate layer is 25 microns to 500 microns.

[0009] In one embodiment, a support tube is further included, wherein a stop surface is provided on the inner wall of the support tube, the raised portion is a convex ring, and the stop surface and the end face of the convex ring are stopped.

[0010] In one embodiment, the heating assembly includes a first heating element and a second heating element connected in parallel.

[0011] In one embodiment, the first heating element and the second heating element are respectively fixed to the base material layer along the axial direction of the heating tube; the first heating element forms at least one first heating ring along the circumference of the heating tube, and the second heating element forms at least one second heating ring along the circumference of the heating tube.

[0012] In one embodiment, the first heating element forms two layers of the first heating rings, and the second heating element forms two layers of the second heating rings; the first heating ring close to the second heating element and the second heating ring close to the first heating element are both semi-annular structures, and the two semi-annular structures form a layer of heating rings.

[0013] In one embodiment, the first heating element and the second heating element are respectively provided with connecting electrodes at their ends away from each other, and a common electrode is provided between their ends close to each other, the connecting electrodes are used to be electrically connected to the positive or negative pole of the power supply, and the common electrode is used to be electrically connected to the other of the positive or negative pole of the power supply.

[0014] In one embodiment, the resistance value of the first heating element is equal to the resistance value of the second heating element.

[0015] In one embodiment, the inner wall of the heating tube is provided with a side wall support portion, and the bottom of the heating tube is provided with an end face support portion, the side wall support portion is used to form a side wall channel between the heating tube and the aerosol-forming substrate, and the end face support portion is used to form an end face channel between the bottom of the heating tube and the end face of the aerosol-forming substrate, the side wall channel is respectively connected to the outside and the end face channel, and the side wall channel and the end face channel are combined to form the airflow channel.

[0016] In one embodiment, the side wall support portion is a strip structure. Along the axial direction of the heating tube, the side wall support portion extends to the bottom of the heating tube and is integrally connected to the end face support portion to form an L-shaped support strip; the L-shaped support strip is configured in plurality, and the plurality of L-shaped support strips are distributed in an array around the axis of the heating tube; the air flow channel is formed between adjacent L-shaped support strips.

[0017] According to the second aspect of the present application, a heat-not-burn atomizer is provided, comprising a power supply, a control panel and the above-mentioned atomization and heating structure, wherein the power supply is used to provide electrical energy to the heating component, and the control panel is used to control the working state of the heating component.

[0018] According to the atomizing heating structure in the above embodiment, a substrate layer is added between the heating tube and the heating element, and the heating element is fixed to the substrate layer. The substrate layer with the heating element fixed thereto is further fixed to the outer wall of the heating tube between the raised portion and the bottom of the heating tube, thereby indirectly fixing the heating element to the outer wall of the heating tube, thereby reducing the difficulty of fixing the heating element to the heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic cross-sectional view of an atomizing heating structure in one embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the explosion structure of the atomizing heating structure in one embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of a support body in one embodiment of the present application;

[0022] Figure 4 This is a structural diagram of a heating assembly in an expanded state in one embodiment of the present application;

[0023] Figure 5 This is a structural schematic diagram of a heating assembly in another embodiment of the present application in an expanded state;

[0024] Figure 6 This is a structural diagram of a heating assembly in an expanded state in another embodiment of the present application;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the atomizing heating structure in one embodiment of the present application;

[0026] Figure 8 for Figure 7 Schematic diagram of the three-dimensional structure of the atomization heating structure from another perspective;

[0027] Figure 9 This is a schematic diagram of the explosion structure of the atomizing heating structure in another embodiment of the present application;

[0028] Figure 10 This is a schematic diagram of the cross-sectional structure of a heat-not-burn atomizer in one embodiment of the present application;

[0029] Figure 11 for Figure 10 Enlarged structural diagram at point A in the middle.

[0030] Explanation of the accompanying drawings: 10. Heating tube, 11. Bottom of the tube, 12. Tube mouth, 13. L-shaped support bar, 131. Side wall support part, 132. End face support part, 14. Air flow channel, 15. Raised part, 20. Heating assembly, 21. First heating element, 211. First heating ring, 22. Second heating element, 221. Second heating ring, 23. Connecting electrode, 24. Common electrode, 30. Base material layer, 40. Support body, 41. Support tube, 411. First tube body, 412. Second tube body, 413. Third tube body, 414. Stop surface, 42. Sleeve, 50. End cover, 60. Base, 70. Clamping ring, 71. Clamping part, 80. Power supply, 90. Control panel, 100. Housing, 110. Aerosol-forming matrix. DETAILED DESCRIPTION

[0031] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0032] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0033] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0034] The atomizing element, when heated, can produce a substance for inhalation by the user. For example, the atomizing element is an aerosol-forming substrate. The aerosol-forming substrate, when heated, can produce an aerosol for inhalation by the user. In the embodiments of this application, the aerosol-forming substrate is used as an example of the atomizing element to illustrate the functions and advantages of the atomizing heating structure.

[0035] See also Figures 1-11 In one embodiment of the present application, an atomizing heating structure is provided, including: a heating tube 10, a heating component 20 and a substrate layer 30.

[0036] The tube opening 12 of the heating tube 10 is used for inserting the aerosol-forming matrix 110 into the heating tube 10 . An air flow channel 14 is formed in the heating tube 10 , and the air flow channel 14 is connected to the outside and the end surface of the aerosol-forming matrix 110 placed in the heating tube 10 .

[0037] A protrusion 15 protruding radially and outward is provided at the opening 12 of the heating tube 10 . The base material layer 30 is fixed to the outer wall of the heating tube 10 between the protrusion 15 and the bottom 11 of the heating tube 10 .

[0038] The heating element 20 is fixed to the substrate layer 30 .

[0039] The heating element 20 in the atomizing heating structure can be in the form of a sheet, mesh, or filament. In the embodiment of the present application, the sheet-shaped heating element 20 is used as an example. The heating element 20 can be directly fixed to the circumference of the heating tube 10 by screen printing. Specifically, the heating tube 10 is placed on a rotatable jig. The screen is a sheet material structure and is in close contact with the outer wall of the heating tube 10. The jig is rotated while the raw material of the heating element 20 on the screen is scraped with a shovel to fix the heating element 20. However, due to the structural design of the raised portion 15, it is impossible to fit the screen on the heating tube 10 at this time, and it is also impossible to fix the heating element 20 to the outer wall of the heating tube 10. Regarding this issue, please refer to Figure 1-Figure 2 The atomizing heating structure includes a substrate layer 30, to which the heating element 20 is fixed, and the substrate layer 30 is fixed to the outer wall of the heating tube 10. For example, the heating element 20 is fixed to the substrate layer 30 by thick film printing, and then the substrate layer 30 with the heating element 20 fixed is fixed to the outer wall of the heating tube 10 by a sintering process, thereby indirectly fixing the heating element 20 to the heating tube 10, thereby reducing the difficulty of fixing the heating element 20 to the heating tube 20.

[0040] The substrate layer 30 is a material that can be used in the tape casting process and has a certain thermal conductivity. For example, the substrate layer 30 can be metal, ceramic, etc. The substrate layer 30 is a sheet layer manufactured by the tape casting process. In this way, the produced substrate layer 30 has a certain flexibility, for example, Figure 4-Figure 6 As shown, the substrate layer 30 in the unfolded state is a rectangular sheet layer, which is easily attached and fixed to the outer wall of the heating tube 10 by its own flexible deformation to form a columnar substrate layer 30, for example, Figure 2 The substrate layer 30 is shown.

[0041] The thinner the substrate layer 30 is, the better the thermal conductivity rate and uniformity of the substrate layer 30 are. Specifically, the thickness of the substrate layer 30 is 25 micrometers to 500 micrometers.

[0042] Aerosol-forming substrates can be classified into many types based on different usage requirements. Based on the difficulty of generating aerosols, they can be roughly divided into two categories: one is an aerosol-forming substrate that is easy to generate aerosols, which can quickly generate aerosols with a slight heating, and the other is an aerosol-forming substrate that is not easy to generate aerosols, which requires a large amount of heat to generate aerosols. The atomizing heating structure designed in this application is suitable for aerosol-forming substrates that are difficult to generate aerosols.

[0043] For aerosol-forming substrates that are difficult to generate aerosols, a larger heating area is required. Therefore, the heating element in the existing atomization heating structure heats the entire aerosol-forming substrate in contact with it. However, due to the use of a single heating element, only one heating method can be provided for the aerosol-forming substrate. It is impossible to provide corresponding heat according to the needs of the aerosol-forming substrate in different time periods, which is not convenient for flexible control. Moreover, due to the integrated heating method, more heat is provided to the aerosol-forming substrate, which is prone to cause a burnt mouth problem, especially when the aerosol-forming substrate is initially heated.

[0044] In an embodiment of the present application, the heating assembly 20 includes a first heating element 21 and a second heating element 22 connected in parallel. When the atomizing heating structure is used to heat the aerosol-forming substrate 110 in the heating tube 10, the first heating element 21 and the second heating element 22 can operate synchronously or asynchronously. For example, when the first heating element 21 is operating, the second heating element 22 is not operating, or when the second heating element 22 is operating, the first heating element 21 is not operating. Alternatively, the first heating element 21 and the second heating element 22 can operate simultaneously. The specific combination of the first heating element 21 and the second heating element 22 is not limited and can be flexibly combined according to the actual heat demand of the aerosol-forming substrate 110 to be heated, as long as the heat provided to the aerosol-forming substrate 110 by the entire heating assembly 20 does not cause a burn in the mouth.

[0045] See also Figure 7-Figure 8 Specifically, the first heating element 21 and the second heating element 22 are respectively indirectly fixed to the cylinder body of the heating tube 10 along the axial direction of the heating tube 10, and can heat different axial sections of the aerosol-forming substrate 110. Taking the example of the first heating element 21 being fixed to the cylinder body near the cylinder mouth 12 and the second heating element 22 being fixed to the cylinder body near the cylinder bottom 11, when the aerosol-forming substrate 110 is initially heated, the first heating element 21 can be made to work first, or the first heating element 21 can be made to work mainly, so as to preferentially heat the section near the top of the aerosol-forming substrate 110, thereby quickly releasing the aerosol. At the same time, the heat provided to the aerosol-forming substrate 110 by the heating component can be appropriately reduced to avoid the problem of burning the mouth. After heating the aerosol-forming substrate 110 for a period of time, only the second heating element 22 can be made to work, or the second heating element 22 can be made to work mainly, so that the aerosol-forming substrate 110 can continuously release the aerosol. The "tube" refers to the structure between the bottom 11 and the mouth 12 of the heating tube 10. When the first heating element 21 is operating primarily, and the second heating element 22 is operating as a supplementary function, the heat generated by the second heating element 22 must be lower than that generated by the first heating element 21. Similarly, when the second heating element 22 is operating primarily, and the first heating element 21 is operating as a supplementary function, the heat generated by the first heating element 21 must be lower than that generated by the second heating element 22.

[0046] The first heating element 21 forms at least one layer of first heating rings 211 along the circumference of the heating tube 10. The first heating element 21 is bent to connect adjacent layers of first heating rings 211 in series. The second heating element 22 forms at least one layer of second heating rings 221 along the circumference of the heating tube 10. The second heating element 22 is bent to connect adjacent layers of second heating rings 221 in series.

[0047] When the first heating element 21 forms a first heating ring 211 along the circumference of the heating tube 10, and the second heating element 22 forms a second heating ring 221 along the circumference of the heating tube 10, the heating component 20 can provide a relatively uniform heating effect to the circumference (i.e., the side or side wall) of the aerosol-forming matrix 110 at the same axial position. More specifically, the length direction of the first heating ring 211 on the same layer is perpendicular to the axial direction of the heating tube 10, and the length direction of the second heating ring 221 on the same layer is also perpendicular to the axial direction of the heating tube 10. This ensures that the heating component 20 can provide a more uniform heating effect to the circumference of the aerosol-forming matrix 110 at the same axial position. Figure 4 For example, Figure 4 The figure mainly shows the specific structure of the heating assembly 20 on the substrate layer 30 when it is unfolded. At this time, the length direction of the first heating ring 211 and the length direction of the second heating ring 221 both refer to the horizontal direction, and the axial direction of the heating tube 10 refers to the vertical direction.

[0048] Of course, in other embodiments, taking the first heating element 21 as an example, the first heating element 21 can also be fixed in a spiral shape on the circumferential surface of the heating tube 10. However, in this case, some places on the circumferential surface of the aerosol-forming substrate 110 at the same axial position are correspondingly provided with the first heating element 21, while some places are not provided with the first heating element 21. That is, the heating assembly 20 cannot provide a uniform heating effect on the circumferential surface of the aerosol-forming substrate 110 at the same axial position.

[0049] See also Figure 4 Specifically, in the embodiment of the present application, the first heating element 21 forms two layers of first heating rings 211, and the second heating element 22 forms two layers of second heating rings 221. The first heating ring 211 close to the second heating element 22, and the second heating ring 221 close to the first heating element 21 are both semi-annular structures, and the two semi-annular structures form a layer of heating rings. That is, the first heating ring 211 and the second heating ring 221 at this time form a total of three layers of heating rings. That is, the first heating element 21 and the second heating element 22 at this time each form a 1.5-circle heating ring on the circumference of the heating tube 10, and the first heating element 21 and the second heating element 22 are obliquely symmetrically distributed on the circumference of the heating tube 10, for example, Figure 4In the figure, the first heating element 21 is distributed on the upper right corner of the heating tube 10, and the second heating element 22 is distributed on the lower left corner of the heating tube 10. When the first heating ring 211 and the second heating ring 221 both form a 1.5-turn heating ring, taking the cylindrical heating tube 10 as an example, Figure 4 The unfolded circumference of the middle base material layer 30 is rectangular (the unfolded circumference of the heating tube 10 is also rectangular or approximately rectangular). The length of the heating rings on the same layer is substantially equal to the circumference of the heating tube 10, so that the heating rings on the same layer form a nearly circular ring structure on the unexpanded surface of the heating tube 10. When the heating rings on the same layer are formed by combining part of the first heating ring 211 and part of the second heating ring 221, the length of the heating rings on the same layer refers to the sum of the length of the first heating ring 211 and the length of the second heating ring 221 on that layer.

[0050] In other embodiments, when the first heating element 21 and the second heating element 22 form a three-layer heating ring on the heating tube 10, they can also have other ratios. For example, the first heating element 21 forms a 1.4-turn heating ring on the heating tube 10, and the second heating element 22 forms a 1.6-turn heating ring on the heating tube 10. Or, in other embodiments, for example, Figure 5 As shown, the first heating element 21 forms two circles of first heating rings 211 on the heating tube 10, and the second heating element 22 forms two circles of second heating rings 221 on the heating tube 10. Alternatively, in other embodiments, for example, Figure 6 As shown, the first heating element 21 forms a single first heating ring 211 on the heating tube 10, and the second heating element 22 forms two second heating rings 221 on the heating tube 10. The number of turns or rings formed by the first heating ring 211 and the second heating ring 221 is not exhaustive and can be flexibly selected based on actual heating requirements. When the first heating element 21 and the second heating element 22 form a full ring of heating rings, they can provide uniform energy distribution to different circumferential surfaces of the aerosol-forming substrate 110 at the same axial position, thereby providing a uniform heating effect to the aerosol-forming substrate 110 at the same axial position.

[0051] See also Figure 4-Figure 6 In the embodiment of the present application, a connecting electrode 23 is provided at each end of the first heating element 21 and the second heating element 22, which are spaced apart from each other. A common electrode 24 is provided between the ends of the first heating element 21 and the second heating element 22, which are located closer to each other. The connecting electrode 23 is used to electrically connect to either the positive or negative terminal of the power supply 80, and the common electrode 24 is used to electrically connect to the other of the positive or negative terminals of the power supply 80. Introducing the common electrode 24 between the parallel-connected first and second heating elements 21, 22 simplifies the circuit connections of the atomizing heating structure.

[0052] More preferably, the resistance of the first heating element 21 is equal to or similar to the resistance of the second heating element 22. When the resistance of the first heating element 21 and the resistance of the second heating element 22 are equal to or similar to each other, it is easier to heat the aerosol-forming substrate 110 and provide uniform energy distribution, and it is also easier to flexibly control the heating assembly 20.

[0053] The inner wall of the heating tube 10 is provided with a sidewall support portion 131, and the bottom 11 of the heating tube 10 is provided with an end surface support portion 132. The sidewall support portion 131 is used to form a sidewall channel between the heating tube 10 and the aerosol-forming substrate 110, while the end surface support portion 132 is used to form an end surface channel between the bottom 11 of the heating tube 10 and the end surface of the aerosol-forming substrate 110. The sidewall channel is connected to the outside world and the end surface channel is connected to the end surface channel, respectively. The sidewall channel and the end surface channel together form the airflow channel 14.

[0054] The end channel refers to the space between the bottom 11 of the heating element 10 and the bottom of the aerosol-forming matrix 110. Accordingly, the top of the aerosol-forming matrix 110, where the user draws inhalation, is located on the side away from the bottom 11 of the heating element 10. The heating assembly 20 is used to generate heat when powered. This heat is transferred to the heating element 10, which then heats the aerosol-forming matrix 110 therein.

[0055] When the user inhales the aerosol-forming matrix 110, the external airflow can enter the aerosol-forming matrix 110 from the bottom of the aerosol-forming matrix 110 through the side wall channel and the end face channel in sequence. At this time, the heat on the heating tube 10 can, on the one hand, heat the aerosol-forming matrix 110 radially, and on the other hand, heat the airflow passing through the side wall channel. The heated airflow enters the interior of the aerosol-forming matrix 110 through the end face channel, and continues to heat the aerosol-forming matrix 110 along the axial direction of the aerosol-forming matrix 110. The energy on the heating tube 10 can be reused, which is beneficial to improving the energy utilization rate of the atomizing heating structure. The space inside the heating tube 10 is a relatively closed chamber, and the airflow channel 14 (i.e., the so-called side wall channel and end face channel) formed in the heating tube 10 is simple, which can optimize or shorten the path of the external airflow flowing in the atomizing heating structure, which helps to reduce power consumption and save heat energy. A first heating element 21 and a second heating element 22 connected in parallel are fixed to the body of the heating tube 10. The first heating element 21 and the second heating element 22 are two relatively independent heating elements, which facilitate flexible control of the heating component 20, solve the problem of burning the mouth when the atomizing heating structure heats the aerosol-forming matrix 110, and also provide more heating modes for the aerosol-forming matrix 110.

[0056] See also Figure 1Specifically, in the embodiment of the present application, the side wall support portion 131 is a strip-shaped structure. Along the axial direction of the heating tube 10, the side wall support portion 131 extends to the bottom 11 of the heating tube 10 and is integrally connected to the end surface support portion 132 to form an L-shaped support strip 13. The L-shaped support strips 13 are configured in multiple numbers, and the multiple L-shaped support strips 13 are arranged in an array around the axis of the heating tube 10. An air flow channel 14 for external airflow is formed between adjacent L-shaped support strips 13. Figure 11 , the flow path of the airflow in the heating tube 10 is shown by the black arrow. When the user inhales the aerosol-forming matrix 110, the external airflow enters the side wall channel through the tube mouth 12 of the heating tube 10, and flows to the end face channel, and then enters the aerosol-forming matrix 110. The airflow channel 14 formed can provide a shorter airflow flow path for the airflow, simplifying the airflow flow path. In other embodiments, the side wall support portion 131 can also be block-shaped, and the end face support portion 132 can be block-shaped, strip-shaped, etc. The side wall support portion 131 and the end face support portion 132 can be two independent parts without being connected. The number of side wall support portions 131 and the number of end face support portions 132 can be the same or different, as long as they can play their respective roles.

[0057] Specifically, in the embodiment of the present application, the thermal conductivity of the heating tube 10 is not less than 10W / mK, so that the heating tube 10 can evenly transfer the heat of the heating component 20. The material of the heating element can be, for example, aluminum alloy, copper, aluminum nitride, etc.

[0058] In one embodiment, the atomizing heating structure further includes a support tube 41. A stop surface 414 is provided on the inner wall of the support tube 41. The raised portion 15 is a convex ring. The stop surface 414 and the end surface of the raised portion 15 are engaged, so that the heating tube 10 can be suspended from the support tube 41 via the raised portion 15. In other embodiments, the heating tube 10 can be secured to the support tube 41 by screw threading, clamping, or other methods, in addition to being suspended from the support tube 41 via the raised portion 15.

[0059] See also Figure 9-10In the embodiment of the present application, the atomizing heating structure further includes a support body 40, an end cover 50, a base 60, and a clamping ring 70. The support body 40 includes a support tube 41 and a sleeve 42 that are connected to each other. The sleeve 42 is located on the outside of the support tube 41. The support tube 41 and the sleeve 42 are an integral structure. The support tube 41 includes a first tube body 411, a second tube body 412, and a third tube body 413 that are connected in sequence. One end of the first tube body 411 is connected to the inner wall of the sleeve 42, and the other end of the first tube body 411 is connected to the second tube body 412. The first tube body 411 is a tapered transition tube. The inner diameter of the second tube body 412 is larger than the inner diameter of the third tube body 413. A stop surface 414 is formed at the connection between the second tube body 412 and the third tube body 413. The raised portion 15 of the heating tube 10 is stuck on the stop surface 414 to suspend the heating tube 10 in the sleeve. The end cap 50 is fixed to one end of the sleeve and extends into the second tube body 412 to abut against the protrusion 15, that is, the protrusion 15 is clamped by the end cap 50 and the stop surface 414 to fix the heating tube 10. The base 60 is fixed to the other end of the sleeve 42, and a relatively closed annular heat-insulating space is formed by the heating tube 10, the sleeve 42, the end cap 50 and the base 60. There is a hollow channel in the end cap 50 to facilitate the aerosol-forming matrix 110 to pass through and enter the heating tube 10. The end of the end cap 50 away from the base 60 is provided with a clamping ring 70, such as a silicone clamping ring. The inner wall of the clamping ring 70 is provided with a plurality of clamping parts 71. The clamping parts 71 are used to abut against the outer wall of the aerosol-forming matrix 110 and form a channel for external gas to enter between the inner wall of the clamping ring 70 and the outer wall of the aerosol-forming matrix 110. External gas can enter the side wall channel through the clamping ring 70 and the end cap 50.

[0060] By adopting the atomizing heating structure in the above embodiment designed by the present application and adopting the side wall hot air flow heating method in the heating tube 10, energy reuse can be achieved, power consumption can be reduced, and energy utilization can be improved. When it is necessary to clean the residue left by the aerosol-forming matrix 110 in the atomizing heating structure, only the aerosol-forming matrix 110 needs to be removed and only the bottom 11 and inner wall of the heating tube 10 need to be cleaned, which is convenient for cleaning and has a small cleaning workload. The heating assembly 20 is composed of two first heating elements 21 and second heating elements 22 connected in parallel, which facilitates the flexible control of the temperature field and solves the problem of burning the mouth.

[0061] See also Figure 10In another embodiment of the present application, a heat-not-burn atomizer is provided, comprising a power supply 80, a control panel 90, a housing 100, and the atomizing and heating structure of the aforementioned embodiment. The power supply 80, the control panel 90, and the atomizing and heating structure are all fixed within the housing 100. The power supply 80 and the heating assembly 20 are electrically connected to the control panel 90, respectively. The power supply 80 is used to provide electrical energy to the heating assembly 20, and the control panel 90 is used to control the operating state of the heating assembly 20. Because the heat-not-burn atomizer has the atomizing and heating structure of the aforementioned embodiment, it also has the advantages of the atomizing and heating structure of the aforementioned embodiment, which will not be further described here.

[0062] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the art of the present application, based on the concept of the present application, they can also make some simple deductions, modifications or substitutions.

Claims

1. An atomizing heating structure, characterized in that: include: a heating tube, wherein the tube opening of the heating tube is used for inserting the aerosol-forming substrate into the heating tube, and an air flow channel is formed in the heating tube, wherein the air flow channel is respectively connected to the outside and the end surface of the aerosol-forming substrate placed in the heating tube; A base material layer, wherein a protrusion protruding radially and outward is provided at the opening of the heating tube, and the base material layer is fixed to the outer wall of the heating tube between the protrusion and the bottom of the heating tube; and A heating component is fixed to the substrate layer.

2. The atomizing heating structure according to claim 1, characterized in that: The substrate layer is a sheet layer manufactured by a tape casting process, and / or the thickness of the substrate layer is 25 micrometers to 500 micrometers.

3. The atomizing heating structure according to claim 1, characterized in that: It also includes a support tube, the inner wall of the support tube is provided with a stop surface, the raised portion is a convex ring, and the stop surface and the end surface of the convex ring are stopped.

4. The atomizing heating structure according to claim 1, characterized in that: The heating assembly includes a first heating element and a second heating element connected in parallel.

5. The atomizing heating structure according to claim 4, characterized in that: The first heating element and the second heating element are respectively fixed to the base material layer along the axial direction of the heating tube; the first heating element forms at least one first heating ring along the circumference of the heating tube, and the second heating element forms at least one second heating ring along the circumference of the heating tube.

6. The atomizing heating structure according to claim 5, characterized in that: The first heating element forms two layers of the first heating rings, and the second heating element forms two layers of the second heating rings; the first heating ring close to the second heating element and the second heating ring close to the first heating element are both semi-annular structures, and the two semi-annular structures form a layer of heating rings.

7. The atomizing heating structure according to claim 5, characterized in that: The first heating element and the second heating element are respectively provided with connecting electrodes at the ends away from each other, and a common electrode is provided between the ends of the first heating element and the second heating element that are close to each other. The connecting electrodes are used to be electrically connected to the positive pole or negative pole of the power supply, and the common electrode is used to be electrically connected to the other of the positive pole or negative pole of the power supply.

8. The atomizing heating structure according to claim 4, characterized in that: The resistance value of the first heating element is equal to the resistance value of the second heating element.

9. The atomizing heating structure according to claim 1, characterized in that: The inner wall of the heating tube is provided with a side wall support portion, and the bottom of the heating tube is provided with an end face support portion. The side wall support portion is used to form a side wall channel between the heating tube and the aerosol-forming substrate, and the end face support portion is used to form an end face channel between the bottom of the heating tube and the end face of the aerosol-forming substrate. The side wall channel is respectively connected to the outside and the end face channel, and the side wall channel and the end face channel are combined to form the airflow channel.

10. The atomizing heating structure according to claim 9, characterized in that: The side wall support portion is a strip-shaped structure. Along the axial direction of the heating tube, the side wall support portion extends to the bottom of the heating tube and is integrally connected to the end surface support portion to form an L-shaped support strip. The L-shaped support strips are configured in plurality and are distributed in an array around the axis of the heating tube. The air flow channel is formed between adjacent L-shaped support strips.

11. A heat-not-burn atomizer, characterized in that: It comprises a power supply, a control board and an atomizing heating structure according to any one of claims 1 to 10, wherein the power supply is used to provide electrical energy to the heating component, and the control board is used to control the working state of the heating component.

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