Heating structure and atomization assembly

Abstract

The heating structure comprises a heat exchange part and a heating body, the heat exchange part comprises a cylinder and a heat exchange structure, the cylinder encloses to form a containing cavity allowing an aerosol generating substrate to be inserted, the heat exchange structure is connected to one axial end of the cylinder, the heat exchange structure is provided with a heat exchange air channel and an annular groove, the heat exchange air channel is communicated with the containing cavity, and the annular groove is communicated with the containing cavity. The annular groove extends in the axial direction of the cylinder body, due to the fact that the notch of the annular groove deviates from the containing cavity, the heating body in the annular groove can be arranged with the containing cavity in a spaced mode in the axial direction of the cylinder body, the heating body can be prevented from making direct contact with aerosol in the containing cavity, the heating body is further packaged in the annular groove through the sealing piece, and the heating body is completely sealed in the annular groove. The heating body cannot be in contact with the generated or refluxed aerosol, carbonized oil liquid can be effectively prevented from being deposited on the heating body, the use experience of a user can be improved, the situation that the heating body is short-circuited and not heated due to deposition of the carbonized oil liquid is avoided, and normal work of the heating structure and the whole atomization assembly can be guaranteed.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to a heating structure and an atomization component. Background Art

[0002] In a heat-not-burn device, the atomization component is generally used to provide an atomization channel for inserting an aerosol-generating substrate. The atomization component also includes a heating structure, which can be used to heat the aerosol-generating substrate so that the aerosol-generating substrate generates an aerosol and is discharged from the atomization channel.

[0003] The heating element in the heating structure of a conventional atomizer component can often come into contact with the generated aerosol or the refluxed aerosol, so that the oil formed after the aerosol condenses will be deposited on the heating element. During long-term use, the carbonized oil will, on the one hand, produce impurities when the heating element heats up, affecting the user's experience. On the other hand, the carbonized oil may also cause the heating element to short-circuit and the heating structure to fail to heat. Utility Model Content

[0004] The present application provides a heating structure and an atomizing assembly to solve the technical problems that when a heating element generates heat, miscellaneous gas affects the user experience and the heating structure does not heat.

[0005] According to the first aspect, an embodiment provides a heating structure, comprising:

[0006] A heat exchange member, comprising a cylinder and a heat exchange structure, wherein the cylinder encloses a receiving cavity for inserting an aerosol generating matrix, the heat exchange structure is connected to one axial end of the cylinder, the heat exchange structure has a heat exchange airway and an annular groove, the heat exchange airway is used to guide the airflow into the receiving cavity, the annular groove extends in the axial direction of the cylinder, and the notch of the annular groove faces away from the receiving cavity;

[0007] The heating element is located in the annular groove, and the heating element is sealed in the annular groove through a sealing member.

[0008] In an optional embodiment, the annular groove is located outside the heat exchange air duct in the radial direction of the cylinder, the annular groove has a radial inner groove wall surface and a radial outer groove wall surface arranged in the radial direction of the cylinder, and the heating element is spaced apart from the radial outer groove wall surface in the radial direction of the cylinder.

[0009] In an optional embodiment, the heating element is in contact with the radial inner groove wall surface, and the sealing element is located between the heating element and the radial outer groove wall surface in the radial direction of the cylinder.

[0010] In an optional embodiment, a size of the heat exchange structure in the radial direction of the cylinder is larger than a size of the accommodating cavity in the radial direction of the cylinder.

[0011] In an optional embodiment, the heat exchange structure includes a heat exchange tube and a heat exchange core, the heat exchange tube is connected to the cylinder body, the heat exchange core is installed in the heat exchange tube, and the annular groove and the heat exchange air channel are both located on the heat exchange core.

[0012] In an optional embodiment, the heat exchange component includes an inner convex portion located between the accommodating cavity and the heat exchange core, the inner convex portion is arranged to protrude toward the axis of the cylinder, and the inner convex portion and the heat exchange core are abutted against each other in the axial direction of the cylinder.

[0013] In an optional embodiment, the sealing member includes ceramic glue, and the ceramic glue is filled in the annular groove to encapsulate and fix the heating element.

[0014] According to the second aspect, an embodiment provides an atomization assembly, comprising an atomization body and a heating structure as described above, wherein the atomization body has an atomization channel and an air inlet channel, and the atomization body also has an air inlet connected to the air inlet channel, the heating structure is connected to the atomization body, the heating structure is located at the end of the atomization channel, and the air inlet channel is connected to the atomization channel through the heating structure.

[0015] In an optional embodiment, the atomizing body includes a sealing cylinder, an atomizing cylinder and a base, the atomizing cylinder and the base are sealed and installed at both axial ends of the sealing cylinder, the atomizing channel is located in the atomizing cylinder, the air intake channel is arranged around the atomizing channel, the air intake channel is located between the sealing cylinder and the atomizing cylinder, the heating structure is installed in the sealing cylinder, and the accommodating chamber is located between the heat exchange structure and the atomizing channel.

[0016] In an optional embodiment, the sealing cylinder has a supporting portion extending toward the atomizing channel, the heating structure support is installed on the supporting portion, the cylinder body is sealingly matched with the supporting portion, and the end face of the cylinder body facing away from the heat exchange structure in the axial direction is in contact with the end face of the atomizing cylinder.

[0017] According to the heating structure and atomization assembly of the above-mentioned embodiments, the heating structure includes a heat exchanger and a heating element. The heat exchanger includes a cylinder and a heat exchange structure. The cylinder encloses a receiving cavity for inserting an aerosol generating matrix. The heat exchange structure is connected to one axial end of the cylinder. The heat exchange structure has a heat exchange airway and an annular groove. The heat exchange airway is used to guide the airflow into the receiving cavity. The annular groove extends in the axial direction of the cylinder. Since the notch of the annular groove is away from the receiving cavity, the heating element in the annular groove can be arranged at a distance from the receiving cavity in the axial direction of the cylinder, which can avoid direct contact between the heating element and the aerosol in the receiving cavity. The heating element is also encapsulated in the annular groove by a sealing element, so that the heating element is completely sealed in the annular groove, and the heating element cannot contact with the generated or refluxed aerosol, which can effectively avoid the deposition of carbonized oil on the heating element, which helps to improve the user experience and avoid short circuit and non-heating of the heating element due to the deposition of carbonized oil, which helps to ensure the normal operation of the heating structure and the entire atomization assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an atomizing component after being matched with an aerosol generating substrate in an embodiment;

[0019] Figure 2 A schematic diagram of the internal structure of an atomizing assembly after being matched with an aerosol generating matrix in an embodiment;

[0020] Figure 3 Schematic diagram of the internal structure of an atomization assembly in an embodiment.

[0021] In the figure: 1. heat exchange component; 11. cylinder body; 111. outer flange; 12. accommodating cavity; 13. inner convex part; 14. heat exchange structure; 141. heat exchange cylinder; 142. heat exchange core; 143. heat exchange air duct; 144. annular groove; 2. heating element; 3. sealing element; 4. atomizing cylinder; 41. atomizing channel; 42. air inlet; 5. sealing cylinder; 51. supporting part; 511. hook structure; 6. air inlet channel; 7. base; 8. aerosol generating matrix. DETAILED DESCRIPTION

[0022] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0023] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0024] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0025] The embodiment of the present application discloses a heating structure, which can be applied in an atomizer assembly to heat an aerosol generating substrate 8 inserted into the atomizer assembly.

[0026] The heating structure of the embodiment of the present application, please refer to Figure 2 and Figure 3 , including a heat exchange member 1 and a heating element 2, the heat exchange member 1 including a barrel 11 and a heat exchange structure 14, the barrel 11 can be a cylindrical structure, the barrel 11 encloses a receiving chamber 12 for inserting an aerosol generating matrix 8, and the heat exchange structure 14 is connected to one axial end of the barrel 11; the heat exchange structure 14 has a heat exchange air channel 143 and an annular groove 144, the heat exchange air channel 143 extends in the axial direction of the barrel 11, and a plurality of heat exchange air channels 143 can be provided, and the plurality of heat exchange air channels 143 are arranged at intervals in a plane perpendicular to the axial direction of the barrel 11, and the heat exchange air channel 143 is connected to the receiving chamber 12, and is used to guide the airflow into the receiving chamber 12.

[0027] In one embodiment, please continue to refer to Figure 2 and Figure 3The annular groove 144 is arranged around the axis of the cylinder 11, and the annular groove 144 extends in the axial direction of the cylinder 11. The annular groove 144 can be arranged coaxially with the cylinder 11; of course, in other embodiments, the axis of the annular groove 144 can also be arranged at intervals from the axis of the cylinder 11. The annular groove 144 is arranged at intervals from the accommodating cavity 12 in the axial direction of the cylinder 11, and the annular groove 144 has a radial inner groove wall surface and a radial outer groove wall surface arranged in the radial direction of the cylinder 11. The annular groove 144 also has a groove bottom wall surface connecting the radial inner groove wall surface and the radial outer groove wall surface. The groove bottom wall surface of the annular groove 144 is located between the radial inner groove wall surface of the annular groove 144 and the accommodating cavity 12 in the axial direction of the cylinder 11 to meet the spacing between the annular groove 144 and the accommodating cavity 12. The notch of the annular groove 144 faces away from the accommodating cavity 12 , that is, the notch of the annular groove 144 is located at an end of the annular groove 144 away from the accommodating cavity 12 in the extending direction of the annular groove 144 .

[0028] The heating element 2 is located in the annular groove 144. The heating element 2 can be installed into the annular groove 144 from the notch of the annular groove 144. The heating element 2 is also sealed in the annular groove 144 through the sealing member 3. In one embodiment, please refer to Figure 2 and Figure 3 The sealing member 3 includes ceramic glue, and the ceramic glue material may include zirconium oxide or aluminum oxide. After the heating element 2 is installed in the annular groove 144, the ceramic glue can be filled into the annular groove 144. After sintering, the heating element 2 can be sealed and installed in the annular groove 144 through the ceramic glue. This can prevent the heating element 2 from directly contacting the aerosol outside the heat exchange structure 14, and can effectively prevent the carbonized oil from being deposited on the heating element 2, generating impurities or causing a short circuit in the heating structure, which helps to ensure the user experience and ensure normal heating of the heating structure.

[0029] In another embodiment, the seal 3 may also include glass glaze, which is filled in the annular groove 144, and after sintering, the heating element 2 is encapsulated in the annular groove 144; or in other embodiments, the seal 3 may also include a high temperature resistant sealant, and after the sealant is filled in the annular groove 144 and solidified, the heating element 2 is encapsulated and fixed in the annular groove 144 by the sealant. Of course, in some other embodiments, the seal 3 may also be a high temperature resistant part that is sealed and fixed in the notch of the annular groove 144, and the seal 3 has a structure for positioning the heating element 2, so as to achieve the fixing of the position of the heating element 2 in the annular groove 144, and the sealing cooperation between the seal 3 and the notch of the annular groove 144 can also prevent the heating element 2 from directly contacting the aerosol.

[0030] In one embodiment, please refer to Figure 2 and Figure 3The heating element 2 may include a heating net, and the heating element 2 may be provided with a lead. After the heating net is encapsulated in the annular groove 144, the lead extends from the annular groove 144 through the seal 3 to be connected to an external power supply component. Of course, in other embodiments, the heating element 2 may also be provided with a power-on coil, which is arranged around the heat exchange structure 14. The power-on coil can generate an alternating magnetic field after being energized. The heating element 2 is located in the annular groove 144. At least a portion of the heating element 2 may be made of a magnetic material. The heating element 2 can generate heat in an alternating magnetic field. This can avoid connecting a lead to the heating element 2, and helps ensure the sealing of the heating element 2 in the annular groove 144.

[0031] In some embodiments, the annular groove 144 is coaxially arranged with the cylinder 11, and the annular groove 144 can be arranged on the outer side of the heat exchange passage 143 in the radial direction of the cylinder 11, and the heating element 2 is arranged at intervals from the radial outer groove wall surface of the annular groove 144 in the radial direction of the cylinder 11. Figure 2 and Figure 3 The heating element 2 can fit the radial inner groove wall of the annular groove 144, and the sealing member 3 is filled between the heating element 2 and the radial outer groove wall of the annular groove 144 in the radial direction of the cylinder 11, so as to avoid the heating element 2 from fitting with the radial outer groove wall of the annular groove 144. The low thermal conductivity of the ceramic glue or glass glaze in the sealing member 3 can be utilized to reduce the transfer of heat from the heating element 2 to the radial outer side in the radial direction of the cylinder 11, and the heat of the heating element 2 can be concentrated at the position where the heat exchange air duct 143 is provided, so as to reduce the heat loss of the heating element 2 and the entire heating structure, reduce energy consumption, and improve heat utilization.

[0032] Of course, in other embodiments, the heating element 2 can also be located between the radial inner groove wall and the radial outer groove wall of the annular groove 144 in the radial direction of the cylinder 11, and the seal 3 or air between the heating element 2 and the radial outer groove wall can be used to reduce the heat transferred from the heating element 2 to the outside of the heat exchange structure 14 in the radial direction of the cylinder 11, thereby reducing heat loss and improving heat utilization.

[0033] Alternatively, in some other embodiments, the heating element 2 may be arranged to fit against the radial outer side wall of the annular groove 144 to reduce assembly requirements, as long as the heating element 2 is encapsulated in the annular groove 144 and does not contact the aerosol.

[0034] For some examples, please refer to Figure 2 and Figure 3In order to increase the number of heat exchange airways 143 or the flow cross-sectional area to improve the heat exchange efficiency of the heat exchange structure 14, the radial size of the heat exchange structure 14 in the cylinder 11 can be set to be larger than the radial size of the accommodating chamber 12 in the cylinder 11. For example, the heat exchange structure 14 is provided with an outer peripheral surface arranged in the circumferential direction of the cylinder 11, and the outer peripheral surface is a cylindrical surface coaxially arranged with the outer peripheral surface of the cylinder 11. The outer diameter size of the heat exchange structure 14 is the radial size of the outer peripheral surface of the heat exchange structure 14. The outer diameter size of the heat exchange structure 14 is set to be larger than the radial size of the accommodating chamber 12 in the cylinder 11. In this way, the amount of gas flowing through the heat exchange airway 143 in the same time period can be increased, thereby improving the heat utilization rate of the heating structure.

[0035] Of course, in other embodiments, in order to reduce the processing steps and facilitate the processing and manufacturing of the entire heating structure, the outer diameter of the heat exchange structure 14 can also be set to be the same as the radial size of the accommodating chamber 12 in the cylinder 11, and the heat exchange efficiency can be improved by increasing the number of heat exchange air ducts 143 or the cross-sectional area of ​​a single heat exchange air duct 143.

[0036] For some embodiments, please continue to refer to Figure 2 and Figure 3 The heat exchange structure 14 includes a heat exchange tube 141 and a heat exchange core 142. The heat exchange tube 141 is a cylindrical structure coaxially arranged with the cylinder body 11. The heat exchange tube 141 is connected to one axial end of the cylinder body 11, and the heat exchange core 142 is installed in the heat exchange tube 141. The heat exchange core 142 can be fixed in the heat exchange tube 141 by a buckle or a clamping ring. Of course, the heat exchange core 142 can also be installed in the heat exchange tube 141 by riveting. The annular groove 144 and the heat exchange air duct 143 are both located on the heat exchange core 142, so as to facilitate the processing and manufacturing of the heat exchange core 142 and the entire heating structure.

[0037] Of course, in other embodiments, an annular groove 144 may be formed between the heat exchange tube 141 and the heat exchange core 142. The heat exchange tube 141 and the heat exchange core 142 may be integrally formed or separately provided, as long as the heating element 2 is encapsulated in the annular groove 144 and does not come into contact with the aerosol.

[0038] In one embodiment, in order to increase the heat exchange rate and heat exchange efficiency of the heat exchange structure 14, the heat exchange core 142 is provided with a material including aluminum alloy, and the heat exchange core 142 is hard-oxidized to achieve insulation from the heating element 2; the material of the cylinder 11 and the heat exchange cylinder 141 are both provided to include alumina, and the heat transfer efficiency can be improved by utilizing the characteristic of alumina having a higher thermal conductivity.

[0039] Of course, in other embodiments, it is also possible for the heat exchange core 142 to be made of ceramic material or for the heat exchange cylinder 141 and the cylinder body 11 to be made of other metal materials.

[0040] For some embodiments, please continue to refer to Figure 2 and Figure 3 In the axial direction of the cylinder 11, the heat exchange element 1 also includes an inner convex portion 13 located between the accommodating cavity 12 and the heat exchange core 142, and the inner convex portion 13 is arranged to protrude toward the axis of the cylinder 11. The heat exchange cylinder 141, the cylinder 11 and the inner convex portion 13 are formed as one piece. The inner convex portion 13 can be abutted against the heat exchange core 142 in the axial direction of the cylinder 11 after the heat exchange core 142 is installed in the heat exchange cylinder 141 to limit the axial position of the heat exchange core 142 in the cylinder 11, and the inner convex portion 13 can also arrange the heat exchange core 142 and the aerosol generating substrate 8 at a distance after the aerosol generating substrate 8 is inserted into the accommodating cavity 12, so as to avoid direct contact between the heat exchange core 142 and the aerosol generating substrate 8, which may cause the aerosol generating substrate 8 to be over-baked and produce impurities.

[0041] Of course, in other embodiments, the inner convex portion 13 may not be provided in the heat exchanger 1. For example, a drainage piece may be provided in the cylinder 11 of the heat exchanger 1. The drainage piece is located between the accommodating chamber 12 and the heat exchange core 142. The drainage piece has a drainage hole connecting the heat exchange air duct 143 and the accommodating chamber 12. The drainage piece can be used to prevent the heat exchange core 142 from directly contacting the aerosol generating matrix 8. The air intake rate of the accommodating chamber 12 can also be changed by adjusting the size of the drainage hole.

[0042] In some embodiments, the end of the barrel 11 of the heat exchanger 1 away from the heat exchange barrel 141 is also provided with an outer flange 111, and the heat exchanger 1 can be installed and positioned in the atomizer assembly through the outer flange 111. Of course, in other embodiments, if the outer flange 111 is not provided, the heat exchanger 1 can be clamped by the atomizer barrel 4 and the base 7 located on both sides of the barrel 11 in the atomizer assembly to fix the position of the heat exchanger 1 in the atomizer assembly.

[0043] The present application also discloses an atomization assembly, please refer to Figures 1 to 3 The atomizing assembly includes an atomizing body and a heating structure in any of the above-mentioned embodiments. The atomizing body has an atomizing channel 41 and an air inlet channel 6. The atomizing body also has an air inlet 42 connected to the air inlet channel 6. The heating structure is connected to the atomizing body. The heating structure is located at the end of the atomizing channel 41. The air inlet channel 6 is connected to the atomizing channel 41 through the heating structure.

[0044] In one embodiment, please refer to Figure 2 and Figure 3, the air inlet channel 6 can be an annular channel, and the air inlet channel 6 is arranged around the atomizing channel 41. One end of the air inlet channel 6 in its extension direction is connected to the atomizing channel 41 through the heat exchange channel 143 and the accommodating chamber 12 in the heating structure. In this way, when the airflow passes through the air inlet channel 6, the airflow can be preheated by the heat transferred outward by the heating element 2 in the radial direction of the cylinder 11, which can effectively improve the heat utilization rate of the heating element 2. Of course, in other embodiments, the air inlet channel 6 can also be arranged on the side of the heating structure that is away from the atomizing channel 41 in the axial direction of the cylinder 11, and the heat exchange channel 143 and the accommodating chamber 12 of the heating structure are connected to the air inlet channel 6 and the atomizing channel 41 in the axial direction of the cylinder 11.

[0045] For further information, please refer to Figure 2 and Figure 3 The atomizing body is provided with a sealing tube 5, an atomizing tube 4 and a base 7. The sealing tube 5 and the atomizing tube 4 can be coaxially arranged with the barrel 11. The atomizing tube 4 and the base 7 are sealed and installed at the axial openings at both ends of the sealing tube 5. The atomizing channel 41 is located in the atomizing tube 4. The air inlet channel 6 is located between the atomizing tube 4 and the sealing tube 5. The air inlet port 42 connected with the air inlet channel 6 can be arranged on the tube wall of the sealing tube 5 or can also be arranged on the tube wall of the atomizing tube 4. The air outside the atomizing assembly can enter the air inlet channel 6 along the air inlet port 42. In the structure in which the air inlet port 42 is arranged on the tube wall of the atomizing tube 4, the air can enter the atomizing channel 41 along the opening at one end of the atomizing tube 4, and then enter the air inlet channel 6 through the air inlet port 42.

[0046] The atomizing tube 4 has an inner end located inside the sealing tube 5 and an outer end located outside the sealing tube 5 in its axial direction. The heating structure is installed in the sealing tube 5. The heating structure is located on the side where the inner end of the atomizing tube 4 is located in the axial direction of the barrel 11. The accommodating chamber 12 in the heating structure is located between the heat exchange structure 14 and the atomizing channel 41. The aerosol generating matrix 8 can be inserted into the accommodating chamber 12 of the heating structure from the outer end opening of the atomizing tube 4 along the atomizing channel 41; the heating structure is spaced apart from the base 7 in the axial direction of the barrel 11, so that the heat of the heating structure can be avoided from being transferred to the base 7, which helps to reduce the heat loss of the heating structure. The lead wire configured on the heating element 2 in the heating structure can pass through the base 7 to achieve electrical connection with the external power supply component. In other embodiments, the sealing tube 5 and the atomizing tube 4 in the atomizing body can also be provided as one-piece.

[0047] For some examples, please refer to Figure 2 and Figure 3The sealing cylinder 5 can also be provided with a support portion 51 extending in the radial direction of the cylinder 11 toward the atomizing channel 41, the support portion 51 having a connecting section and a supporting section connected to the connecting section, the connecting section extending in the radial direction of the cylinder 11, the connecting section being gradually inclined away from the direction of the air inlet 42 in the air inlet direction of the air inlet channel 6, the supporting section extending in the axial direction of the cylinder 11 in the direction away from the air inlet 42, the overhanging end of the supporting section having a hook structure 511, the hook structure 511 having a supporting surface facing the air inlet 42 in the axial direction of the cylinder 11, the outer flange 111 on the cylinder 11 in the heating structure is supported and installed on the supporting surface, and the outer flange 111 is also abutted against the atomizing cylinder 4 in the axial direction of the cylinder 11, so that under the clamping action of the atomizing cylinder 4 and the hook structure 511 in the support portion 51, the position of the heating structure in the sealing cylinder 5 is fixed, and the support portion 51 can also prevent the base 7 from contacting the heating structure, which helps to reduce the heat loss of the heating structure.

[0048] The support portion 51 is located in the air inlet channel 6 to separate the air inlet channel 6 into a first air inlet cavity and a second air inlet cavity. The connecting section has a connecting hole, and the air inlet port 42 can be connected to the second air inlet cavity through the first air inlet cavity and the connecting hole in turn. A sealing ring is provided between the support surface of the hook structure 511 and the outer flange 111. Under the clamping action of the atomizer tube 4 and the hook structure 511, the outer flange 111 and the hook structure 511 are sealed and matched, so that the sealing between the accommodating cavity 12 in the heating structure and the second air inlet cavity is realized, and the aerosol in the accommodating cavity 12 can be prevented from entering the second air inlet cavity along the gap between the support portion 51 and the heating structure.

[0049] In another embodiment, the heating structure may be arranged to be clamped between the base 7 and the atomizing tube 4 in the axial direction of the cylinder 11 so as to fix the position of the heating structure in the atomizing body; in addition, it is also necessary to arrange in the axial direction of the cylinder 11 that the size of the heat exchange tube 141 is larger than the size of the heat exchange core 142, and an opening is arranged on the wall of the heat exchange tube 141 to connect the air inlet channel 6 with the heat exchange air duct 143 on the heat exchange core 142 through the opening.

[0050] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A heating structure, characterized in that: include: A heat exchange member, comprising a cylinder and a heat exchange structure, wherein the cylinder encloses a receiving cavity for inserting an aerosol generating matrix, the heat exchange structure is connected to one axial end of the cylinder, the heat exchange structure has a heat exchange airway and an annular groove, the heat exchange airway is used to guide the airflow into the receiving cavity, the annular groove extends in the axial direction of the cylinder, and the notch of the annular groove faces away from the receiving cavity; The heating element is located in the annular groove, and the heating element is sealed in the annular groove through a sealing member.

2. The heating structure according to claim 1, characterized in that: The annular groove is located outside the heat exchange air passage in the radial direction of the cylinder, and has a radial inner groove wall surface and a radial outer groove wall surface arranged in the radial direction of the cylinder. The heating element is spaced apart from the radial outer groove wall surface in the radial direction of the cylinder.

3. The heating structure according to claim 2, characterized in that: The heating element is in contact with the radial inner groove wall surface, and the sealing member is located between the heating element and the radial outer groove wall surface in the radial direction of the cylinder.

4. The heating structure according to claim 1, characterized in that: The size of the heat exchange structure in the radial direction of the cylinder is larger than the size of the accommodating cavity in the radial direction of the cylinder.

5. The heating structure according to claim 1, characterized in that: The heat exchange structure comprises a heat exchange cylinder and a heat exchange core, wherein the heat exchange cylinder is connected to the cylinder body, the heat exchange core is installed in the heat exchange cylinder, and the annular groove and the heat exchange air passage are both located on the heat exchange core.

6. The heating structure according to claim 5, characterized in that: The heat exchange member includes an inner convex portion located between the accommodating cavity and the heat exchange core, the inner convex portion is arranged to protrude toward the axis of the cylinder, and the inner convex portion and the heat exchange core are abutted against each other in the axial direction of the cylinder.

7. The heating structure according to any one of claims 1 to 6, characterized in that: The sealing member includes ceramic glue, and the ceramic glue is filled in the annular groove to encapsulate and fix the heating element.

8. An atomizing assembly, characterized in that: It comprises an atomizing body and a heating structure as described in any one of claims 1 to 7, wherein the atomizing body has an atomizing channel and an air inlet channel, the atomizing body also has an air inlet connected to the air inlet channel, the heating structure is connected to the atomizing body, the heating structure is located at the end of the atomizing channel, and the air inlet channel is connected to the atomizing channel through the heating structure.

9. The atomizer assembly according to claim 8, characterized in that: The atomizing body comprises a sealing cylinder, an atomizing cylinder and a base, wherein the atomizing cylinder and the base are sealed and installed at both axial ends of the sealing cylinder, the atomizing channel is located in the atomizing cylinder, the air intake channel is arranged around the atomizing channel, the air intake channel is located between the sealing cylinder and the atomizing cylinder, the heating structure is installed in the sealing cylinder, and the accommodating chamber is located between the heat exchange structure and the atomizing channel.

10. The atomizer assembly according to claim 9, characterized in that: The sealing cylinder has a support portion extending toward the atomizing channel, the heating structure support is mounted on the support portion, the cylinder body is sealed with the support portion, and the end face of the cylinder body facing away from the heat exchange structure in the axial direction is in contact with the end face of the atomizing cylinder.

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