Heating structure and heating non-combustion device

Abstract

According to the heating structure and the heating non-combustion device, the heating structure comprises a heating piece and a heat transfer piece, the heat transfer piece is provided with a heat exchange part and an auxiliary heating part which are connected in the first direction, the heat exchange part is connected with the heating piece, and the auxiliary heating part is provided with an arc-shaped section which is located on the radial outer side of an aerosol generating substrate to heat the aerosol generating substrate; the auxiliary heating part is further provided with notches, in the circumferential direction of the arc-shaped sections, the notches are located between the two ends of the arc-shaped sections, or the multiple arc-shaped sections are arranged at intervals, and the notches are located between every two adjacent arc-shaped sections. In this way, on one hand, aerosol can be heated through the arc-shaped section to generate a matrix so as to shorten the distance between aerosol and the suction nozzle, the waiting time is shortened, and it can be ensured that ascending aerosol is not condensed through the whole auxiliary heating part; on the other hand, the distance between the bottom wall of the notch and the suction nozzle is larger than that between the arc-shaped section and the suction nozzle, the heat transfer rate and heat transfer amount from the heating structure to the suction nozzle can be reduced through the notch, the temperature of the suction nozzle is reduced, and the probability that a user is scalded is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of heating without burning, and in particular to a heating structure and a heating without burning device. Background Art

[0002] The heat-not-burn device is a device that heats an aerosol-generating substrate by a heat-not-burn method, so that the aerosol-generating substrate generates an aerosol.

[0003] The heating without burning device includes a heating structure for heating the aerosol generating substrate, and the heating structure includes a heating element. In order to prevent the aerosol from condensing during the upward process, an auxiliary heating pipe is generally required to be provided. The auxiliary heating pipe is in contact with the outer peripheral surface of the aerosol generating substrate, and the heating element transfers heat to the auxiliary heating pipe, which provides heat for the ascending aerosol to prevent the aerosol from condensing.

[0004] The distance between most auxiliary heating tubes and the nozzles of the aerosol generating substrates is short. During long-term use, the heat of the auxiliary heating tubes is transferred to the nozzles of the aerosol generating substrates, which can easily burn the user. Utility Model Content

[0005] The present application provides a heating structure and a heat-without-burning device to solve the technical problem that the user may be easily scalded by the heat-without-burning device when used for a long time.

[0006] According to the first aspect, an embodiment provides a heating structure, including a heating element and a heat transfer element:

[0007] The heat transfer element comprises a heat exchange portion and an auxiliary heat portion connected in a first direction, the heat exchange portion is connected to the heat generating element, and the heat exchange portion comprises a heat exchange air passage extending in the first direction;

[0008] The auxiliary heating portion has an arc segment and a notch, and the arc segment is used to be arranged radially outside the aerosol generating substrate to heat the aerosol generating substrate;

[0009] In the circumferential direction of the arc segment, the notch is located between the two ends of the arc segment; or there are multiple arc segments, and the multiple arc segments are arranged at intervals in the circumferential direction of the arc segment, and the notch is located between two adjacent arc segments.

[0010] In an optional embodiment, the heat transfer element has a accommodating cavity, which is used to accommodate the aerosol generating matrix; the auxiliary heating part includes an annular segment arranged around the accommodating cavity, the annular segment is connected between the arc segment and the heat exchange part in the first direction, and the annular segment is used to heat the aerosol generating matrix.

[0011] In an optional embodiment, the arc segment has a first suspended surface and a second suspended surface, the first suspended surface and the second suspended surface are arranged opposite to the heat exchange part in the first direction, and the distance between the first suspended surface and the heat exchange part is greater than the distance between the second suspended surface and the heat exchange part.

[0012] In an optional embodiment, the first suspension surface is connected to the second suspension surface in a smooth transition.

[0013] In an optional embodiment, the first suspension surface and the second suspension surface are coplanar.

[0014] In an optional embodiment, the outer diameter of the heat exchange part is smaller than the outer diameter of the auxiliary heating part, and the heat generating element is fixed on the outer peripheral surface of the heat exchange part.

[0015] In an optional embodiment, the heat-generating element includes an annular heating element surrounding the heat exchange portion, the heat exchange portion has an air inlet end away from the auxiliary heat portion in the first direction, the heat exchange portion has an outer flange at the air inlet end extending radially outward of the heat exchange portion, and the outer flange abuts against the annular heating element in the first direction.

[0016] According to the second aspect, an embodiment provides a heating without burning device, comprising a device body and a heating structure as described in any one of the above items, wherein the heating structure is connected to the device body, the device body has an atomization channel for inserting an aerosol generating matrix, and the heat exchange air channel is connected to the atomization channel.

[0017] In an optional embodiment, the device body also has an air inlet channel, and the device body includes an atomizing tube, an insulation tube and a sealing piece. The atomizing tube and the sealing piece are sealed and installed at both end openings of the insulation tube in the first direction. The atomizing channel is located in the atomizing tube, and the air inlet channel is located between the insulation tube and the atomizing tube. The insulation tube or the atomizing tube has an air inlet port connected to the air inlet channel, the heating structure is installed in the insulation tube, and the heat exchange air duct connects the air inlet channel and the atomizing channel.

[0018] In an optional embodiment, in the radial direction of the arc segment, the heat transfer element has an outer protrusion extending radially outward, and a hook structure extending radially inward is provided on the tube wall of the thermal insulation tube, and the outer protrusion and the hook structure are abutted against each other in the first direction.

[0019] According to the heating structure and the heating-without-combustion device of the above-mentioned embodiment, the heating structure includes a heating element and a heat transfer element, the heat transfer element has a heat exchange portion and an auxiliary heat portion connected in a first direction, the heat exchange portion is connected to the heating element, and the heat exchange portion has a heat exchange airway extending in the first direction; because the auxiliary heat portion has an arc segment and a notch, the arc segment is arranged on the radial outside of the aerosol generating substrate to heat the aerosol generating substrate; in the circumferential direction of the arc segment, the notch is located between the two ends of the arc segment; or there are multiple arc segments, and the multiple arc segments are arranged at intervals in the circumferential direction of the arc segment, and the notch is located between two adjacent arc segments; in this way, on the one hand, the aerosol can be heated by the auxiliary heat portion The gel generating substrate is heated to ensure that the ascending aerosol does not condense, and the arc segment extends toward the suction nozzle of the aerosol generating substrate. The arc segment can heat the aerosol generating substrate to shorten the distance between the aerosol and the suction nozzle, thereby reducing the waiting time. On the other hand, in the first direction, the distance between the bottom wall of the notch and the suction nozzle is greater than the distance between the arc segment and the suction nozzle of the aerosol generating substrate. The heat transfer rate and heat transfer amount of the heating structure to the aerosol generating substrate in the first direction can be reduced through the notch. After using the heat-not-burning device for a long time, the suction nozzle temperature of the aerosol generating substrate can be reduced, thereby reducing the probability of burns to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a partial internal structure of a heating without burning device in an embodiment;

[0021] Figure 2 A schematic diagram of the structure of a heat transfer element in an embodiment;

[0022] Figure 3 A schematic diagram of the structure of a heat transfer element in another embodiment;

[0023] Figure 4 It is a schematic structural diagram of the heat transfer element in another embodiment at another viewing angle.

[0024] In the figure: 1. heat transfer element; 11. heat exchange part; 111. heat exchange air duct; 112. outer flange; 113. wire groove; 12. auxiliary heating part; 121. connection end; 122. suspension end; 123. ring section; 124. accommodating cavity; 125. arc section; 1251. first arc section; 1252. first suspension surface; 1253. second arc section; 1254. second suspension surface; 126. outer convex part; 127. notch; 2. atomization pipe; 21. air inlet; 22. atomization channel; 31. insulation pipe; 32. hook structure; 321. connection part; 322. hook; 4. air inlet channel; 5. blocking member; 6. annular positioning member; 7. outer shell. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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).

[0028] An embodiment of the present application discloses a heating structure, which can be applied to a heat-without-combustion device to achieve heating of an aerosol-generating substrate.

[0029] Please refer to Figures 1 to 4The heating structure includes a heating element (not shown in the figure) and a heat transfer element 1, the heating element is used to generate heat, and the heat transfer element 1 is used to transfer the heat generated by the heating element to the aerosol generating substrate (not shown in the figure). The heat transfer element 1 has a heat exchange portion 11 and an auxiliary heat portion 12 arranged in a first direction. The first direction is the extension direction of the atomization channel 22 in the heat-not-burn device, which is also the insertion direction of the aerosol generating substrate. The heat exchange portion 11 is connected to the heating element. The heat exchange portion 11 has a heat exchange air channel 111 extending in the first direction. The heat exchange portion 11 and the aerosol generating substrate are arranged in the first direction. The heating element can transfer heat to the heat exchange portion 11. The heat exchange portion 11 can heat the airflow flowing through the heat exchange air channel 111. After the airflow is heated, it enters the aerosol generating substrate to heat the aerosol generating substrate; the auxiliary heat portion 12 is located on the side of the heat exchange portion 11 facing the aerosol generating substrate in the first direction. The auxiliary heat portion 12 is located radially outward of the aerosol generating substrate. The heat exchange portion 11 can transfer heat to the auxiliary heat portion 12, and the auxiliary heat portion 12 assists in heating the aerosol generating substrate to prevent the aerosol already generated in the aerosol generating substrate from condensing in the process of ascending to the suction nozzle.

[0030] The auxiliary heating portion 12 has a connecting end 121 and a suspended end 122 in a first direction. The auxiliary heating portion 12 is connected to the heat exchange portion 11 via its connecting end 121. The auxiliary heating portion 12 has an arc segment 125 and a notch 127. The arc segment 125 is arranged to extend in the circumferential direction of the aerosol generating substrate. The arc segment 125 is used to be arranged on the radially outer side of the aerosol generating substrate to heat the aerosol generating substrate. The arc segment 125 may have an arc surface for contacting the aerosol generating substrate, and direct contact may be used to heat the aerosol generating substrate; and the arc segment 125 extends toward the nozzle of the aerosol generating substrate, and the aerosol generating substrate may be heated by the arc segment 125 to shorten the distance between the generated aerosol and the nozzle of the aerosol generating substrate, thereby reducing the waiting time for the aerosol to be discharged from the nozzle.

[0031] The suspended end 122 of the auxiliary heating portion 12 is located on the arc segment 125; in some embodiments, please refer to Figures 2 to 4 In the circumferential direction surrounding the aerosol generating substrate, that is, in the circumferential direction of the arc segment 125, only one arc segment 125 may be provided, and the notch 127 is located between the two ends of the arc segment 125; Figure 2 In the embodiment, it can be understood that both end surfaces of the arc segment 125 in the circumferential direction extend in the first direction, and the notch 127 is located between the end surfaces; Figure 3In the embodiment, it can be understood that both end faces of the arc segment 125 in the circumferential direction are inclined surfaces arranged at an acute angle to the first direction, and the notch 127 is located between the end faces. Or in other embodiments, multiple arc segments 125 can be provided, and multiple arc segments 125 are arranged at intervals in the circumferential direction of the arc segment 125, and two adjacent arc segments 125 are arranged at intervals, and the notch 127 is located between two adjacent arc segments 125. In this way, in the first direction, the distance between the bottom wall of the notch 127 and the aerosol generating substrate suction nozzle is greater than the distance between the arc segment 125 and the aerosol generating substrate suction nozzle. In this way, the heat transfer rate and heat transfer amount of the entire heat transfer element 1 to the aerosol generating substrate suction nozzle in the first direction can be reduced through the notch 127 on the auxiliary heat portion 12, and the suction nozzle temperature of the aerosol generating substrate can be reduced after the heat-not-burning device is used for a long time, thereby reducing the probability of the user being scalded.

[0032] In one embodiment, please refer to Figures 2 to 4 The arc segment 125 is only provided with one notch 127, which is located between the two end faces of the arc segment 125 in the circumferential direction. In this way, the arc segment 125 which is half-wrapped around the outer peripheral surface of the aerosol generating matrix in the circumferential direction can assist in heating the aerosol generating matrix, thereby avoiding condensation of the ascending aerosol and reducing the waiting time of the aerosol, while reducing the heat transfer rate and heat transfer amount to the aerosol generating matrix nozzle, thereby reducing the probability of the user being burned after using the heat-not-burning device for a long time.

[0033] In one embodiment, please refer to Figure 3 and Figure 4The heat transfer element 1 may also be provided with a accommodating cavity 124, which may accommodate the aerosol generating substrate. The heat exchange air channel 111 of the heat exchange portion 11 is in communication with the accommodating cavity 124. The auxiliary heat portion 12 includes an annular segment 123 arranged around the accommodating cavity 124. The annular segment 123 is arranged around the aerosol generating substrate to limit the aerosol generating substrate in its radial direction. The annular segment 123 may be in contact with the outer peripheral surface of the aerosol generating substrate to achieve heating of the aerosol generating substrate. The annular segment 123 is arranged to be connected between the arc segment 125 and the heat exchange portion 11 in the first direction, and the connecting end 121 is located on the annular segment 123, so that the size of the auxiliary heating portion 12 and the entire heat transfer element 1 can be extended in the first direction, which can effectively avoid condensation in the process of the aerosol ascending to the suction nozzle, and can also further reduce the waiting time of the aerosol; and in the heat transfer element 1 provided with the annular segment 123, the notch 127 is formed by the end faces of the arc segment 125 at both ends in the circumferential direction and the end face of the annular segment 123 facing the arc segment 125 in the first direction, so that the auxiliary heating portion 12 forms a structure that is fully wrapped in the outer peripheral surface of the aerosol generating matrix, as long as the distance between the bottom wall of the notch 127 and the aerosol generating matrix suction nozzle in the first direction is greater than the distance between the arc segment 125 and the aerosol generating matrix suction nozzle, the heat transfer rate and the amount of heat transfer from the heat transfer element 1 to the aerosol generating matrix suction nozzle in the first direction can be reduced, thereby reducing the probability of the user being scalded after using the heat-not-burning device for a long time.

[0034] In one embodiment, the heat exchange portion 11 may be configured to be a cylindrical segment extending in a first direction, and the end surface of the heat exchange portion 11 in the first direction facing the arc segment 125 is perpendicular to the first direction. In an embodiment in which an annular segment 123 is provided, both end surfaces of the annular segment 123 in the first direction are perpendicular to the first direction.

[0035] In one embodiment, please refer to Figures 2 to 4, an arc segment 125 is provided including a first arc portion 1251 and a second arc portion 1253 arranged in the circumferential direction thereof, both arc portions are used to heat the aerosol generating substrate, the two arc portions may be connected or spaced in the circumferential direction, in the embodiment where the two arc portions are spaced, the two arc portions may form two arc segments 125; the suspended end 122 of the auxiliary heating portion 12 is located on the arc segment 125, and the arc segment 125 may be provided with a first suspended surface 1252 and a second suspended surface 1254 located at the suspended end 122, the first suspended surface 1252 may be located on the first arc portion 1251, the second suspended surface 1254 may be located on the second arc portion 1253, the first suspended surface 1252 and the second suspended surface 1254 are both arranged opposite to the heat exchange portion 11 in the first direction, and may also be arranged in the first direction Upward, the distance between the first suspension surface 1252 and the heat exchange portion 11 is greater than the distance between the second suspension surface 1254 and the heat exchange portion 11, that is, the height of the first arc portion 1251 in the first direction is greater than the height of the second arc portion 1253 in the first direction. In this way, the distance between the geometric center of the entire arc segment 125 and the nozzle of the aerosol generating substrate in the first direction can be reduced by the second arc portion 1253 with a smaller height, which helps to further reduce the heat transfer rate and heat transfer amount from the arc segment 125 and the entire heat transfer element 1 to the nozzle of the aerosol generating substrate in the first direction, further reducing the probability of users being burned after using the heat-not-burning device for a long time; and the aerosol waiting time can be further shortened by heating the aerosol generating substrate through the first arc portion 1251 with a higher height.

[0036] In other embodiments, the number of arc portions can be set to three or more, and the multiple arc portions can be arranged or connected at intervals in the circumferential direction of the arc segment 125. Correspondingly, the end surface of the arc portion facing away from the heat exchange portion 11 in the first direction, that is, the suspension surface, can also be provided with three or more. As long as the heights of two arc portions are different, that is, the distances between the two suspension surfaces and the heat exchange portion 11 in the first direction are different, the arc portion with a smaller height can be used to further reduce the heat transfer rate and heat transfer amount of the arc segment 125 and the entire heat transfer element 1 to the aerosol generating matrix nozzle in the first direction, that is, the probability of the user being burned after using the heat-not-burning device for a long time can be further reduced.

[0037] In some embodiments, the first suspension surface 1252 and the second suspension surface 1254 can both be planes perpendicular to the first direction. Of course, at least one suspension surface can be set as an inclined surface, an arc surface or a curved surface with an acute angle to the first direction, as long as the distances between the two suspension surfaces and the heat exchange part 11 in the first direction are unequal.

[0038] In one embodiment, please refer to Figure 3 and Figure 4The first arc portion 1251 is connected to the second arc portion 1253 in the circumferential direction of the arc segment 125 , and the arc segment 125 continuously arranged in the circumferential direction can be artificially divided into the first arc portion 1251 and the second arc portion 1253 arranged in the circumferential direction of the arc segment 125 .

[0039] The end surface of the first arc portion 1251 facing away from the heat exchange portion 11 in the first direction can be smoothly transitioned to the end surface of the second arc portion 1253 facing away from the heat exchange portion 11 in the first direction, that is, the first suspension surface 1252 and the second suspension surface 1254 are smoothly transitioned to each other. The smooth transition connection here can be understood as the curvature of the end portion of the first suspension surface 1252 connected to the second suspension surface 1254 being equal to the curvature of the end portion of the second suspension surface 1254 connected to the first suspension surface 1252. In this way, sharp edges or sharp recesses can be avoided from being formed between the first suspension surface 1252 and the second suspension surface 1254, thereby facilitating the processing of the end surface of the arc segment 125 facing away from the heat exchange portion 11 in the first direction, that is, facilitating the processing of the entire arc segment 125 and the heat transfer component 1.

[0040] Of course, in other embodiments, the first suspension surface 1252 and the second suspension surface 1254 can be connected by a connecting surface extending in the first direction, that is, the first suspension surface 1252, the second suspension surface 1254 and the connecting surface form a step structure; or a sharp edge or a sharp recess can be formed between the first suspension surface 1252 and the second suspension surface 1254, as long as the distances between the first suspension surface 1252 and the second suspension surface 1254 and the heat exchange part 11 in the first direction are not equal.

[0041] In some embodiments, the first suspension surface 1252 and the second suspension surface 1254 may be arranged to be coplanar. For example, in one embodiment, please refer to Figure 3 and Figure 4 , the first suspension surface 1252 is connected to the second suspension surface 1254, and the first suspension surface 1252 and the second suspension surface 1254 can be set to be planes, and the angle between the first suspension surface 1252 and the first direction is equal to the angle between the second suspension surface 1254 and the first direction, so as to meet the extension surface of the first suspension surface 1252 and the extension surface of the second suspension surface 1254 coincide with each other, so that it is convenient to realize the processing of the first suspension surface 1252 and the second suspension surface 1254 through a single process, which helps to simplify the processing process of the entire heat transfer element 1; or it can also be understood that the end surface of the arc segment 125 facing away from the heat exchange portion 11 in the first direction is an inclined surface with an acute angle with the first direction, and the inclined surface can be artificially divided into the first suspension surface 1252 and the second suspension surface 1254 according to the arc portion, so as to meet the first suspension surface 1252 and the second suspension surface 1254 coplanar.

[0042] In another embodiment, the first suspension surface 1252 and the second suspension surface 1254 can be arranged at intervals in the circumferential direction of the arc segment 125, and the first suspension surface 1252 and the second suspension surface 1254 are both planes, and the extension surface of the first suspension surface 1252 coincides with the extension surface of the second suspension surface 1254. This also facilitates the processing of the first suspension surface 1252 and the second suspension surface 1254 in one process, and also helps to simplify the processing process of the entire heat transfer component 1.

[0043] Of course, in other embodiments, if the first suspension surface 1252 and the second suspension surface 1254 are both curved surfaces or arc surfaces, regardless of whether the first suspension surface 1252 and the second suspension surface 1254 are connected, the first suspension surface 1252 and the second suspension surface 1254 can be set to be coplanar to facilitate the processing of the heat transfer element 1.

[0044] For some embodiments, please continue to refer to Figures 1 to 4 The outer diameter of the heat exchange part 11 is set to be smaller than the outer diameter of the auxiliary heat part 12, and the heating element is fixed on the outer peripheral surface of the heat exchange part 11 to achieve heat transfer between the heating element and the heat exchange part 11. In one embodiment, the heating element can be a heating film fixed on the outer peripheral surface of the heat exchange part 11, and the heating film can be a resistive heating film, or a magnetic heating film, and the magnetic heating film is equipped with a coil that provides an alternating magnetic field to achieve heating of the heating film.

[0045] In some other embodiments, a heating element may be embedded in the heat exchange portion 11. For example, the heating element may include an annular heating element. The heat exchange portion 11 has an annular groove, and the annular heating element is embedded in the annular groove. Alternatively, the heating element may be a needle-type heating element, which is embedded in the heat exchange portion 11, and part of the needle-type heating element extends into the accommodating cavity 124 for contacting the aerosol generating matrix.

[0046] In one embodiment, please refer to Figures 1 to 4 The heat-generating element includes an annular heating element surrounding a heat exchange portion 11. The heat exchange portion 11 has an air inlet end away from the auxiliary heat portion 12 and an air outlet end connected to the auxiliary heat portion 12 in a first direction. The heat exchange portion 11 has an outer flange 112 extending radially outward at the air inlet end, so that the outer flange 112, the outer peripheral surface of the heat exchange portion 11 and the auxiliary heat portion 12 are combined to form an annular groove with an opening toward the radial outward of the heat exchange portion 11. The annular heating element can be installed in the annular groove, and can be abutted against the annular heating element in the first direction by the outer flange 112 to prevent the annular heating element from being separated from the heat exchange portion 11.

[0047] In addition, a wire groove 113 extending in the first direction may be provided on the outer peripheral surface of the heat exchange portion 11, and the lead wire of the annular heating element is located in the wire groove 113, and the lead wire of the annular heating element is led out from the air inlet end of the heat exchange portion 11 for external power supply. In other embodiments, the annular heating element may also be fixed to the outer peripheral surface of the heat exchange portion 11 by bonding, so as to avoid providing an outer flange 112 on the heat exchange portion 11 that abuts against the annular heating element in the first direction.

[0048] The present application also discloses a heating without burning device. Figure 1 The heat-not-burn device includes a device body and a heating structure of any one of the above-mentioned embodiments. The device body has an atomization channel 22 for inserting an aerosol generating substrate. The heating structure is connected to the device body. The heating structure can be located in the atomization channel 22, or the heating structure can also be located outside the atomization channel 22. Only the heat exchange air channel 111 in the heating structure is connected to the atomization channel 22 to supply a hot air flow to the aerosol generating substrate in the atomization channel 22.

[0049] For some examples, please refer to Figure 1 The device body also has an air inlet channel 4, and the device body includes a shell 7, the shell 7 has a mounting cavity and an insertion port connected to the mounting cavity, and the aerosol generating matrix can be inserted into the atomization channel 22 and the accommodating cavity 124 from the insertion port. The device body also includes an atomizer tube 2, an insulation tube 31 and a sealing member 5 located in the installation cavity. The atomizer tube 2 and the insulation tube 31 both extend in the first direction. The atomizer tube 2 and the sealing member 5 are sealed and installed at the openings of the insulation tube 31 at both ends in the first direction. There is a bracket (not shown in the figure) in the installation cavity of the shell 7. The insulation tube 31 and the sealing member 5 can be fixed in the installation cavity by the bracket to achieve the fixation of the position of the insulation tube 31 and the sealing member 5 in the installation cavity. One end opening of the atomizer tube 2 in the first direction is located in the insulation tube 31, and the other end opening is located outside the insulation tube 31. The other end opening of the atomizer tube 2 is connected to the insertion port, and the other end opening of the atomizer tube 2 can be abutted against the shell 7 in the circumferential direction of the atomizer tube 2 through the annular positioning member 6 to achieve the fixation of the atomizer tube 2 in its circumferential position.

[0050] The atomizing channel 22 is located in the atomizing tube 2, and the air inlet channel 4 in the device body is located between the atomizing tube 2 and the heat-insulating tube 31. An opening can be provided on the tube wall of the heat-insulating tube 31 or the atomizing tube 2 to form an air inlet 21 connected with the air inlet channel 4. For example, the air inlet 21 can be provided on the tube wall of the atomizing tube 2, and the air inlet 21 is connected with the atomizing channel 22. After the aerosol generating substrate is inserted into the atomizing channel 22, the external airflow can enter from the gap between the tube wall of the atomizing tube 2 and the outer peripheral surface of the aerosol generating substrate, and enter into the air inlet channel 4 along the air inlet 21. The air inlet channel 4 is an annular airway arranged around the atomizing channel 22. Such an arrangement can utilize the heat on the tube wall of the atomizing tube 2 to preheat the airflow flowing through the air inlet channel 4, so as to improve the heat utilization rate of the heating structure, and help reduce the energy consumption of the entire heating without burning device.

[0051] In other embodiments, the air intake channel 4 and the atomization channel 22 may be arranged in the first direction. The channel cross-section of the air intake channel 4 may be circular or square. The air inlet 21 may be arranged on the outer shell 7. The external airflow passes through the air intake channel 4 and the heat exchange air channel 111 in the first direction in sequence and enters the atomization channel 22.

[0052] In one embodiment, the heating structure is installed in the heat insulation tube 31, and the heat exchange air channel 111 connects the air inlet channel 4 and the atomization channel 22. An external thread can be provided at the suspension end 122 of the heat transfer element 1, so that the heating structure is connected to the atomization tube 2 through the thread, so that the heating structure is installed and fixed in the heat insulation tube 31.

[0053] Of course, in another embodiment, please refer to Figure 1 An outer protrusion 126 extending radially outwardly toward the arc segment 125 may be provided on the heat transfer element 1. The outer protrusion 126 may be provided on the annular segment 123, or may be provided at the end of the arc segment 125 facing away from the heat exchange portion 11 in the first direction. In addition, a hook structure 32 extending radially inwardly is provided on the tube wall of the insulation tube 31, so that the outer protrusion 126 and the hook structure 32 are abutted against each other in the first direction, so as to fix the position of the heating structure in the insulation tube 31.

[0054] In the above-mentioned embodiment in which the heating structure is fixed in position in the insulation tube 31 by means of threaded connection and hooking by the hook structure 32, the heating structure is spaced apart from the sealing member 5 in the first direction. This can reduce the heat transferred from the heating structure to the sealing member 5, help reduce the heat loss of the heating structure, and improve the heat utilization rate of the heating without combustion device.

[0055] In other embodiments, an atomizing tube 2 and a sealing member 5 may be provided to clamp and fix the heating structure in the insulation tube 31 in a first direction, and a through hole may be provided on the side wall of the heat exchange portion 11 in the heating structure to achieve communication between the air inlet channel 4 and the heat exchange air channel 111 through the through hole.

[0056] In the embodiment where the heating structure is fixed in position in the heat insulation tube 31 by hooking the hook structure 32, please refer to Figure 1 The end face of the atomizer tube 2 facing the heating structure in the first direction is fitted with the end face of the heating structure facing the atomizer tube 2 in the first direction, and the inner diameter of the atomizer tube 2 is equal to the inner diameter of the auxiliary heating part 12, so as to avoid setting edges on the channel wall of the atomization channel 22 to affect the insertion of the aerosol generating matrix.

[0057] In one embodiment, the hook structure 32 on the insulation tube 31 includes a connecting portion 321 and a hook portion 322. The connecting portion 321 is connected between the hook portion 322 and the tube wall of the insulation tube 31. The connecting portion 321 extends toward the atomization channel 22. The outer protrusion 126 is located on the side of the hook portion 322 facing away from the heat exchange portion 11 in the first direction. The hook portion 322 and the outer protrusion 126 are hooked and matched in the first direction. The hook structure 32 is an annular structure arranged around the atomization channel 22. The hook structure 32 divides the air inlet channel 4 into a first air inlet cavity and a second air inlet cavity. The air inlet 21 is connected to the first air inlet cavity. The connecting portion 321 has a connecting hole extending in the first direction. The first air inlet cavity can be connected to the second air inlet cavity through the connecting hole.

[0058] 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: Including heating elements and heat transfer elements: The heat transfer element comprises a heat exchange portion and an auxiliary heat portion connected in a first direction, the heat exchange portion is connected to the heat generating element, and the heat exchange portion comprises a heat exchange air passage extending in the first direction; The auxiliary heating portion has an arc segment and a notch, and the arc segment is used to be arranged radially outside the aerosol generating substrate to heat the aerosol generating substrate; In the circumferential direction of the arc segment, the notch is located between the two ends of the arc segment; or, there are multiple arc segments, and the multiple arc segments are arranged at intervals in the circumferential direction of the arc segment, and the notch is located between two adjacent arc segments.

2. The heating structure according to claim 1, characterized in that: The heat transfer element has a containing cavity, which is used to contain an aerosol generating substrate; the auxiliary heating part includes an annular segment arranged around the containing cavity, the annular segment is connected between the arc segment and the heat exchange part in the first direction, and the annular segment is used to heat the aerosol generating substrate.

3. The heating structure according to claim 1, characterized in that: The arc segment has a first suspension surface and a second suspension surface, the first suspension surface and the second suspension surface are arranged opposite to the heat exchange part in the first direction, and the distance between the first suspension surface and the heat exchange part is greater than the distance between the second suspension surface and the heat exchange part.

4. The heating structure according to claim 3, characterized in that: The first suspension surface is connected to the second suspension surface in a smooth transition.

5. The heating structure according to claim 3, characterized in that: The first suspension surface is coplanar with the second suspension surface.

6. The heating structure according to any one of claims 1 to 5, characterized in that: The outer diameter of the heat exchange part is smaller than the outer diameter of the auxiliary heat part, and the heat generating element is fixed on the outer peripheral surface of the heat exchange part.

7. The heating structure according to claim 6, characterized in that: The heat-generating element comprises an annular heating element surrounding the heat exchange portion, the heat exchange portion having an air inlet end away from the auxiliary heat portion in the first direction, the heat exchange portion having an outer flange extending radially outward from the heat exchange portion at the air inlet end, the outer flange abutting against the annular heating element in the first direction.

8. A heat-not-burn device, characterized in that: The device comprises a device body and a heating structure according to any one of claims 1 to 7, wherein the heating structure is connected to the device body, the device body has an atomization channel for inserting an aerosol generating matrix, and the heat exchange airway is connected to the atomization channel.

9. The heat-not-burn device according to claim 8, characterized in that: The device body also has an air inlet channel, and the device body includes an atomizing tube, an insulation tube and a sealing member. The atomizing tube and the sealing member are sealed and installed at both end openings of the insulation tube in the first direction. The atomizing channel is located in the atomizing tube, and the air inlet channel is located between the insulation tube and the atomizing tube. The insulation tube or the atomizing tube has an air inlet port connected to the air inlet channel. The heating structure is installed in the insulation tube, and the heat exchange air duct connects the air inlet channel and the atomizing channel.

10. The heat-not-burn device according to claim 9, characterized in that: In the radial direction of the arc segment, the heat transfer element has an outer protrusion extending radially outward, and a hook structure extending radially inward is provided on the tube wall of the thermal insulation tube, and the outer protrusion and the hook structure are abutted against each other in the first direction.

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