Heating structure and heating non-combustion atomization device

Abstract

The utility model discloses a heating structure and a heating non-combustion atomization device, and relates to the technical field of electronic atomization, and the heating structure comprises a heating base body, a heating piece and a heat conduction pipe. The heating substrate comprises an insertion section and a non-insertion section which are adjacent in the axial direction, the insertion section is used for being inserted into an aerosol forming substrate, and the non-insertion section is arranged on the outer side of the aerosol forming substrate. The heating element is fixed to the heating base body and used for generating heat to heat the aerosol forming base body. The heat conduction pipe is connected to the insertion section of the heating base body in a sleeving mode, the temperature difference between the axial middle section and the two ends of the heating base body is reduced through the heat conduction effect of the heat conduction pipe, and then uniform heating of the aerosol forming base body is achieved. The heat conduction pipe is sleeved on the insertion section of the heating substrate, so that heat generated by the heating element can be distributed in the aerosol forming substrate in a concentrated manner, and the energy utilization rate of the heating structure is improved or the power consumption is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and particularly relates to a heating structure and a heat-not-burn atomization device. Background Art

[0002] A heat-not-burn atomization device is a product that can heat an aerosol-forming substrate to generate an aerosol without burning the aerosol-forming substrate. There are various heating structures in the heat-not-burn atomization device to heat and atomize the aerosol-forming substrate. For example, the circumferential direction of the aerosol-forming substrate is heated from the outside to the inside through a heating tube that accommodates the aerosol-forming substrate. Another example is to heat by inserting a heating matrix into the aerosol-forming substrate. Still another example is to combine a heating tube and a heating matrix to heat the aerosol-forming substrate simultaneously. Among them, when using a heating matrix to heat the aerosol-forming substrate, since the heating matrix is made of ceramic material, the heating matrix has a low thermal conductivity and a long heat conduction time. When the heating element on the heating matrix works, there is a large temperature difference between the axial middle section and the two ends of the heating matrix, and it is impossible to uniformly heat the aerosol-forming substrate. Utility Model Content

[0003] The present application provides a heating structure and a heat-not-burn atomization device, and its main purpose is to achieve uniform heating of the aerosol-forming substrate.

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

[0005] A heating matrix, the heating matrix includes an insertion section and a non-insertion section adjacent in the axial direction, the insertion section is used to insert into the aerosol-forming substrate, and the non-insertion section is placed outside the aerosol-forming substrate;

[0006] A heating element, the heating element is fixed to the heating matrix, and the heating element is used to generate heat to heat the aerosol-forming substrate; and

[0007] A heat conduction tube, the heat conduction tube is sleeved on the insertion section of the heating matrix, and the heat conduction tube is used to uniform the heat to facilitate uniform heating of the aerosol-forming substrate.

[0008] In one embodiment, it further includes a heat insulation tube, the heat insulation tube is sleeved on the non-insertion section of the heating matrix, the heat insulation tube and the heat conduction tube are located on the same side in the radial direction of the heating matrix, and the thermal conductivity of the heat insulation tube is lower than that of the heat conduction tube.

[0009] In one embodiment, both the heat insulation tube and the heat conduction tube are sleeved on the outside of the heating matrix.

[0010] In one embodiment, a spaced - apart space is provided between the inner wall of the heat - insulating tube and the outer wall of the non - insertion section.

[0011] In one embodiment, a first raised portion is provided on the inner wall of the heat - insulating tube, and the first raised portion is in contact with the non - insertion section.

[0012] In one embodiment, a plurality of second raised portions are provided on one end surface of the heat - insulating tube facing the heat - conducting tube, and the second raised portions are in contact with the heat - conducting tube.

[0013] In one embodiment, the heating matrix includes an axially adjacent heating body and a piercing body. The heating body includes the insertion section and the non - insertion section. The insertion section is located at one end close to the piercing body, and the non - insertion section is located at one end far from the piercing body; the heating body is columnar, and the piercing body is conical.

[0014] In one embodiment, it further includes a mounting member. The radial dimension of the piercing body is greater than the radial dimension of the heating body. Two ends of the heat - conducting tube are respectively abutted against the piercing body and the heat - insulating tube, and one end of the heat - insulating tube far from the heat - conducting tube is abutted against the mounting member; the mounting member is fixed to the non - insertion section, and the mounting member is used to fix the heating structure inside the heat - not - burning atomizing device.

[0015] In one embodiment, a mounting hole is formed in the mounting member, and the mounting member is sleeved on the non - insertion section through the mounting hole. Ceramic glue is filled between the mounting hole and the non - insertion section to fixedly connect the mounting member and the non - insertion section; and / or, the thermal conductivity of the mounting member is not higher than 20 W / m·k.

[0016] In one embodiment, the heat - conducting tube is axially divided into a first tube body and a second tube body. The first tube body is located at one end far from the non - insertion section, and the second tube body is located at one end close to the non - insertion section. An avoidance opening is formed in the second tube body.

[0017] According to the second aspect of the present application, a heat - not - burning atomizing device is provided, including the above - mentioned heating structure.

[0018] According to the heating structure in the above embodiments, a heat conduction tube is sleeved on the heating matrix. Through the heat conduction of the heat conduction tube, the temperature difference between the axial middle section and the two ends of the heating matrix is reduced, thereby realizing the uniform heating of the aerosol-forming matrix, improving the smoking taste of the aerosol-forming matrix, and enhancing the user experience. Moreover, the heat conduction tube is sleeved on the insertion section of the heating matrix, that is, the heat conduction tube conducts heat on the part of the heating matrix inserted into the aerosol-forming matrix, and does not conduct heat on the part of the heating matrix located outside the aerosol-forming matrix. In this way, it is beneficial for the heat generated by the heating element to be concentrated inside the aerosol-forming matrix, reducing unnecessary heat loss, improving the energy utilization rate of the heating structure or reducing power consumption. Description of the Drawings

[0019] Figure 1 Schematic diagram of the exploded structure of the heating structure in an embodiment of the present application;

[0020] Figure 2 Schematic diagram of the sectional structure of the heating structure in an embodiment of the present application;

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the heating structure in an embodiment of the present application;

[0022] Figure 4 Schematic diagram of the sectional structure of the aerosol-forming matrix in an embodiment of the present application;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the heat insulation tube in an embodiment of the present application;

[0024] Figure 6 Schematic diagram of the three-dimensional structure of the heat conduction tube in an embodiment of the present application;

[0025] Figure 7 Schematic diagram of the sectional structure of the heat-not-burn atomizing device in an embodiment of the present application.

[0026] Description of the reference numerals: 10. Heating matrix, 11. Heating main body, 111. Insertion section, 112. Non-insertion section, 12. Piercing body, 20. Heating element, 30. Heat conduction tube, 31. First tube body, 32. Second tube body, 33. Avoidance opening, 40. Heat insulation tube, 41. First convex portion, 42. Second convex portion, 50. Mounting member, 51. Mounting hole, 60. Insulating layer, 70. Lead wire, 80. Receiving member, 90. Mounting seat, 100. Sleeve, 110. Mounting bracket, 120. Outer shell.

[0027] A. Aerosol-forming matrix, A1. Intake end, A2. Outlet end, A3. Matrix section, A4. Cooling section, A5. Filter section. Detailed Embodiments

[0028] The present application will be further described in detail below in conjunction with the specific embodiments with reference to the accompanying drawings. Similar elements in different embodiments are denoted by related similar element numbers. In the following embodiments, a lot of detailed descriptions are provided to enable a better understanding of the present application. 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, or methods. In some cases, some operations related to the present application are not shown or described in the specification, which is to avoid the core part 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, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0029] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for clearly describing a certain embodiment and do not mean that they are the necessary sequences, unless it is stated that a certain sequence must be followed.

[0030] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. And the "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0031] In one embodiment of the present application, a heating structure applied to a heat-not-burn atomization device is provided. The heating structure is used to heat and atomize the aerosol-forming substrate A so that the aerosol-forming substrate A can generate an aerosol for users to inhale without combustion.

[0032] Please refer to Figures 1-6 , the heating structure includes: a heating substrate 10, a heating element 20, and a heat-conducting tube 30. The heating substrate 10 includes an insertion section 111 and a non-insertion section 112 adjacent axially. The insertion section 111 is used to insert into the aerosol-forming substrate A, and the non-insertion section 112 is placed outside the aerosol-forming substrate A. The heating element 20 is fixed to the heating substrate 10, and the heating element 20 is used to generate heat to heat the aerosol-forming substrate A. The heat-conducting tube 30 is sleeved on the insertion section 111 of the heating substrate 10, and the heat-conducting tube 30 is used to evenly distribute heat to facilitate uniform heating of the aerosol-forming substrate A.

[0033] Adopting the heating structure in the above embodiments, a heat conduction tube 30 is sleeved on the heating matrix 10. Through the heat conduction of the heat conduction tube 30, the temperature difference between the axial middle section and the two ends of the heating matrix 10 is reduced, thereby realizing the uniform heating of the aerosol-forming matrix A, improving the smoking taste of the aerosol-forming matrix A, and enhancing the user experience. Moreover, the heat conduction tube 30 is sleeved on the insertion section 111 of the heating matrix 10, that is, the heat conduction tube 30 conducts heat on the part of the heating matrix 10 inserted into the aerosol-forming matrix A, and does not conduct heat on the part of the heating matrix 10 located outside the aerosol-forming matrix A. In this way, it is beneficial for the heat generated by the heating element 20 to be concentrated inside the aerosol-forming matrix A, reducing unnecessary heat loss, and improving the energy utilization rate of the heating structure or reducing power consumption.

[0034] Please refer to Figure 4 , the aerosol-forming matrix A heated by the heating structure includes an air inlet end A1 and an air outlet end A2 that are opposite to each other in the axial direction. The air inlet end A1 is used for allowing external air to enter the inside of the aerosol-forming matrix A, and the air outlet end A2 is used for discharging the aerosol generated after the aerosol-forming matrix A is heated. Between the air inlet end A1 and the air outlet end A2, there are successively connected a matrix section A3, a cooling section A4, and a filtering section A5. Among them, the matrix section A3, the cooling section A4, and the filtering section A5 can be an integral structure, and the three sections are coaxially arranged. Specifically, in the embodiment of the present application, the heating matrix 10 is inserted into the matrix section A3 of the aerosol-forming matrix A through the air inlet end A1. After the heating structure starts to work, the matrix section A3 is heated to generate high-temperature water vapor. The aerosol is brought to the cooling section A4 through the high-temperature water vapor. The cooling section A4 can cool the aerosol mixed with the high-temperature water vapor. Finally, the impurities in the aerosol are filtered through the filtering section A5, so that when the user smokes the aerosol through the air outlet end A2, there is a suitable smoking temperature (that is, it will not burn the mouth), and a relatively pure taste can be obtained.

[0035] In some embodiments, the heating matrix 10 is needle-shaped, rod-shaped, or hollow tubular. And / or, the heating element 20 is sheet-shaped, mesh-shaped, or filament-shaped.

[0036] The needle-shaped heating matrix 10 is convenient for quickly and labor-savingly inserting into the aerosol-forming matrix A; the rod-shaped heating matrix 10 has a relatively larger inner diameter than the needle-shaped heating matrix 10, and can provide a larger heating area after being inserted into the aerosol-forming matrix A; the hollow tubular heating matrix 10 can not only facilitate the rapid heat conduction of the heating matrix 10, but also reduce the heat absorbed by the heating matrix 10, so that as much heat as possible generated by the heating element 20 is transferred to the aerosol-forming matrix A, thereby improving the thermal energy utilization rate of the heating structure. Therefore, in the embodiment of the present application, the heating matrix 10 is a hollow tubular structure.

[0037] When the heating element 20 is in the shape of a sheet, such as a thick film printed conductive sheet layer, when the heating element 20 is in a net shape, such as a heating pipe network, and when the heating element 20 is in a filament shape, such as a heating wire spiraling along the axis. The specific position of the heating element 20 can be arranged on the outer wall, inner wall or between the outer wall and the inner wall of the hollow tubular heating substrate 10 according to the situation. Among them, the heat conducting pipe 30 and the heating element 20 can be in direct contact or indirect contact. For example, the heating element 20 is fixed to the inner wall of the heating substrate 10, and the heat conducting pipe 30 is sleeved on the outer wall of the insertion section 111 of the heating substrate 10. At this time, the heat conducting pipe 30 and the heating element 20 are in indirect contact. For another example, the heating element 20 is fixed to the outer wall of the heating substrate 10, the heat conducting pipe 30 is sleeved on the outer wall of the insertion section 111 of the heating substrate 10, and the heating element 20 is placed between the heat conducting pipe 30 and the heating substrate 10. At this time, the heating element 20 and the heat conducting pipe 30 are in direct contact, and the heat conducting pipe 30 can conduct heat more quickly and evenly. When the heat conducting pipe 30 and the heating element 20 are in direct contact, the heating structure further includes an insulating layer 60. The insulating layer 60 is fixed between the heating element 20 and the heat conducting pipe 30 to prevent electricity conduction between the heating element 20 and the heat conducting pipe 30.

[0038] Please refer to Figures 1-3 , preferably, the heating structure further includes a heat insulation pipe 40. The heat insulation pipe 40 is sleeved on the non-insertion section 112 of the heating substrate 10. The heat insulation pipe 40 and the heat conducting pipe 30 are on the same side in the radial direction of the heating substrate 10. For example, they are both located on the inner wall of the hollow tubular heating substrate 10, or both located on the outer wall of the hollow tubular heating substrate 10. Among them, the heat conductivity coefficient of the heat insulation pipe 40 is lower than that of the heat conducting pipe 30. Through the heat insulation effect of the heat insulation pipe 40, the heat of the heating element 20 is prevented from being transferred to the non-insertion section 112 side of the heating substrate 10, so that the heat generated by the heating element 20 can be more concentratedly distributed in the insertion section 111 of the heating substrate 10, thereby improving the energy utilization rate or reducing the power consumption.

[0039] Specifically, the heat conductivity coefficient of the heat conducting pipe 30 is not less than 100 W / m.k, and / or the thickness of the heat conducting pipe 30 is 0.15 mm - 0.3 mm. For example, the heat conducting pipe 30 is an aluminum pipe or an electroplated copper pipe. When the heat conducting pipe 30 is an aluminum pipe or an electroplated copper pipe, the heat generated by the heating element 20 can be evenly distributed at a faster speed, and then the aerosol forming matrix A can be heated evenly. And at this time, the aerosol forming matrix A can generate aerosol for the user to inhale at a faster speed, improving the user experience. When the thickness of the heat conducting pipe 30 is 0.15 mm - 0.3 mm, it is more conducive to ensuring the heat conduction uniformity of the heat conducting pipe 30. More specifically, the heat conducting thickness of the heat conducting pipe 30 is 0.3 mm.

[0040] Specifically, the heat conduction coefficient of the heat insulation tube 40 is not higher than 20 W / m·k, and / or the thickness of the heat insulation tube 40 is 0.2 mm - 0.3 mm. For example, the heat insulation tube 40 is a zirconia tube, and the zirconia tube has a relatively low heat conduction coefficient, which can play a role in heat insulation and reduce the heat generated by the heating element 20 from being transferred to the non-insertion section 112 outside the aerosol-forming matrix A, thereby further improving the energy utilization rate of the heating structure. The thickness of the heat insulation tube 40 is 0.2 mm - 0.3 mm. In this thickness range, it can not only ensure the heat insulation and supporting functions of the heat insulation tube 40, but also reduce the heat absorption of the heat insulation tube 40 itself.

[0041] Please refer to Figures 1-3 , preferably, both the heat insulation tube 40 and the heat conduction tube 30 are sleeved outside the heating matrix 10. In this way, the heat conduction tube 30 can be in direct contact with the aerosol-forming matrix A, facilitating the heat conduction tube 30 to directly transfer the homogenized heat to the aerosol-forming matrix A, so that the heated aerosol-forming matrix A generates an aerosol with a better taste. Both the heat insulation tube 40 and the heat conduction tube 30 are located outside the heating matrix 10, which is convenient for the heat insulation tube 40 to play the role of heat insulation for the heat conduction tube 30 and reduce the heat transferred from the heat conduction tube 30 to the non-insertion section 112 of the heating matrix 10.

[0042] The heating matrix 10 is specifically made of ceramic material, such as alumina ceramic or zirconia ceramic. The heating matrix 10 itself has a certain insulation property, so an insulating layer 60 may not be provided between the heating element 20 and the heating matrix 10 to simplify the heating structure. Correspondingly, when the heat conduction tube 30 is made of aluminum or copper, the heat conduction tube 30 has a certain electrical conductivity, and an insulating layer 60 needs to be provided between the heat conduction tube 30 and the heating element 20. The insulating layer 60 mainly plays an insulating role for the heat conduction tube 30. Therefore, the axial length of the insulating layer 60 should be at least equal to the axial length of the heat conduction tube 30 to facilitate the insulating effect on the heat conduction tube 30. For example, as shown in Figure 1, the axial length of the tubular insulating layer 60 is greater than the axial length of the heat conduction tube 30, and the insulating layer 60 extends axially between the heat insulation tube 40 and the heating element 20 to ensure the insulating effect.

[0043] Please refer to Figures 1-3 , the heating structure further includes a lead wire 70, and the lead wire 70 is connected to the heating element 20. Specifically, the heating element 20 is fixed on the outer wall of the heating matrix 10, and the heating element 20 extends axially from the insertion section 111 to the non-insertion section 112 of the heating matrix 10. One end of the lead wire 70 is electrically connected to the heating element 20 extending to the non-insertion section 112, and the other end of the lead wire 70 is used to connect to a power source. Among them, the lead wire 70 can be configured as two, and the two lead wires 70 realize the electrical connection between the heating element 20 and the positive and negative poles of the power source. One end of the lead wire 70 is electrically connected to the heating element 20 in the non-insertion section 112, which helps to ensure the compact and miniaturized design of the heating structure inserted into the aerosol-forming matrix A.

[0044] Preferably, in one embodiment, a spacer space is provided between the inner wall of the heat insulation tube 40 and the outer wall of the non-insertion section 112. This spacer space is similar to an air heat insulation layer, and air has a relatively low thermal conductivity, which can prevent the heat of the heating element 20 from being transferred radially to the heat insulation tube 40, so as to ensure that as much heat as possible generated by the heating element 20 is transferred to the heat conduction tube 30, that is, to ensure that as much heat as possible generated by the heating element 20 is transferred to the inside of the aerosol formation matrix A, improving the energy utilization rate of the heating structure.

[0045] Please refer to Figure 5 , specifically, a first protrusion 41 is provided on the inner wall of the heat insulation tube 40, and the first protrusion 41 contacts the non-insertion section 112. By the contact between the first protrusion 41 and the non-insertion section 112, on the one hand, the installation stability of the heat insulation tube 40 can be ensured, and the heat insulation tube 40 can be prevented from radially shaking relative to the non-insertion section 112. On the other hand, the contact area between the heat insulation tube 40 and the heating element 20 on the non-insertion section 112 can be reduced, and unnecessary heat conduction can be reduced as much as possible to ensure the energy utilization rate of the heating structure. Among them, the first protrusion 41 can be configured as multiple, for example, multiple first protrusions 41 are uniformly arranged around the axis of the heat insulation tube 40 on the inner wall of the heat insulation tube 40 and form a ring of protrusion units. Along the axial direction of the heat insulation tube 40, multiple layers of protrusion units can be provided on the inner wall of the heat insulation tube 40 to better ensure the contact stability between the heat insulation tube 40 and the non-insertion section 112. The shape of the first protrusion 41 can be strip-shaped or block-shaped, and the block-shaped first protrusion 41 can be a hemisphere, a semi-ellipsoid, a cube, a cone or other irregular shapes. The block-shaped first protrusion 41 has a relatively smaller contact area and can even make point contact with the non-insertion section 112. Therefore, preferably, the first protrusion 41 is a block-shaped protrusion.

[0046] Please refer to Figure 5 , preferably, in one embodiment, a plurality of strip-shaped second protrusions 42 are provided on the end surface of the heat insulation tube 40 facing the heat conduction tube 30, and the second protrusions 42 contact the heat conduction tube 30. For example, four uniformly distributed second protrusions 42 are arranged in a circular array on the end surface of the heat insulation tube 40 facing the heat conduction tube 30. Through the second protrusions 42, the contact area between the heat insulation tube 40 and the heat conduction tube 30 can be reduced, and further the heat transferred from the heat conduction tube 30 to the heat insulation tube 40 along the axial direction can be reduced. In other embodiments, the second protrusions 42 may not be provided, and the heat insulation tube 40 and the heat conduction tube 30 are spaced apart along the axial direction, and the space interval between the heat insulation tube 40 and the heat conduction tube 30 is used to prevent heat transfer. At this time, the heat insulation tube 40 and the non-insertion section 112 can be tightly fitted to ensure the installation stability of the heat insulation tube 40.

[0047] Please refer to Figures 1-2, in the embodiment of the present application, the heating matrix 10 includes an axially adjacent heating body 11 and a piercing body 12. The heating body 11 includes an adjacent insertion section 111 and a non-insertion section 112. Figure 2 The dotted line in Figure 2 schematically divides the piercing body 12, the insertion section 111 and the non-insertion section 112 of the heating matrix 10. The insertion section 111 is located at one end close to the piercing body 12, and the non-insertion section 112 is located at one end far from the piercing body 12. The heating body 11 is columnar, and the piercing body 12 is conical. The piercing body 12, the insertion section 111 and the non-insertion section 112 on the heating matrix 10 are coaxially arranged and are of an integral structure. The conical piercing body 12 facilitates the insertion of the insertion section 111 of the heating body 11 into the aerosol-forming substrate A. The columnar heating body 11 can relatively provide sufficient heating area for the aerosol-forming substrate A thereon. Specifically, in the embodiment of the present application, the heating body 11 is a hollow cylindrical tube, and the piercing body 12 is conical. This is only an exemplary shape description and should not be construed as a limitation on the shapes of the heating body 11 and the piercing body 12 of the present application.

[0048] Please refer to Figures 1-3 , the heating structure further includes a mounting member 50. The radial dimension of the piercing body 12 is greater than that of the heating body 11. The two ends of the heat conducting tube 30 are respectively abutted against the piercing body 12 and the heat insulating tube 40. The end of the heat insulating tube 40 far from the heat conducting tube 30 is abutted against the mounting member 50. The mounting member 50 is fixed to the non-insertion section 112, and the mounting member 50 is used to fix the heating structure inside the heat-not-burning atomizing device.

[0049] The radial dimension of the piercing body 12 is greater than that of the heating body 11, so that there is a convex edge on the piercing body 12 relative to the heating body 11 in the radial direction, which is convenient for abutting against one end of the heat conducting tube 30. Through the cooperation of the piercing body 12 and the mounting member 50, the heat conducting tube 30 and the heat insulating tube 40 between the piercing body 12 and the mounting member 50 can be clamped and fixed. The heat conducting tube 30 is abutted against the piercing body 12. It can be that the entire end face of the heat conducting tube 30 abuts against the piercing body 12. At this time, the outer diameter of the heat conducting tube 30 can be equal to or less than the outer diameter of the piercing body 12, or a partial end face of the heat conducting tube 30 abuts against the piercing body 12. At this time, the outer diameter of the heat conducting tube 30 can be greater than or less than the outer diameter of the piercing body 12. Similarly, between the heat conducting tube 30 and the heat insulating tube 40, it can be that the entire end faces are in contact for abutting, or a partial end face is overlapped for abutting. Similarly, between the heat insulating tube 40 and the mounting member 50, it can be that the entire end face of the heat insulating tube 40 abuts against the mounting member 50, or a partial end face of the heat insulating tube 40 overlaps with the mounting member 50 for abutting.

[0050] Specifically, in the embodiments of the present application, in order to ensure the smooth insertion of the heating structure into the aerosol-forming substrate A and to ensure the structural compactness of the heating structure, the outer diameter of the heat-conducting tube 30 is the same as the outer diameter of the piercing body 12. In order to ensure the heat-insulating effect of the heat-insulating tube 40, the outer diameter of the heat-insulating tube 40 can be larger than the outer diameter of the heat-conducting tube 30. At this time, the heat-insulating tube 40 can also play a limiting role, and the end face of the heat-insulating tube 40 abuts against the air inlet end A1 of the aerosol-forming substrate A to prevent the heating structure from being inserted into the aerosol-forming substrate A excessively.

[0051] In other embodiments, the heat-insulating tube 40 and the mounting member 50 can also be sleeved. When sleeved, there will be a large contact area between the heat-insulating tube 40 and the mounting member 50, which will increase unnecessary heat conduction and is not conducive to the energy utilization rate of the heating structure. Moreover, when sleeved, it will make the design of the heating structure complicated. Correspondingly, the present application adopts a butting method between the heat-insulating tube 40 and the mounting member 50, which can not only reduce the heat transferred from the heat-insulating tube 40 to the side of the mounting member 50, but also simplify the design of the heating structure and facilitate the production and installation of the heating structure.

[0052] Please refer to Figure 1 , specifically, in the embodiments of the present application, a mounting hole 51 is formed in the mounting member 50, and the mounting member 50 is sleeved on the non-insertion section 112 through the mounting hole 51, and ceramic glue is filled between the mounting hole 51 and the non-insertion section 112 to fixedly connect the mounting member 50 and the non-insertion section 112. And / or, the thermal conductivity of the mounting member 50 is not higher than 20 W / m·k. Among them, the ceramic glue is a kind of glue made by grinding ceramics into powder and adding a curing agent. By filling the ceramic glue between the mounting hole 51 and the non-insertion section 112, on the one hand, it is convenient to realize the fixed relationship between the mounting member 50 and the non-insertion section 112, and on the other hand, the ceramic glue itself has a low thermal conductivity, which can reduce the heat generated by the heating element 20 at the non-insertion section 112 from being transferred radially to the mounting member 50. The material of the mounting member 50 can specifically be zirconia, which can also reduce heat transfer. Through the cooperation of the heat-insulating tube 40, the mounting member 50 and the ceramic glue, the heat generated by the heating element 20 can be more distributed in the insertion section 111 to heat the aerosol-forming substrate A more sufficiently and better improve the energy utilization rate of the heating structure.

[0053] In the embodiment of the present application, the heat-insulating tube 40 and the mounting member 50 are two independent structural members. When assembling the heating structure, the heat-insulating tube 40 and the mounting member 50 are in abutting connection. In this way, there will inevitably be some mounting gaps between the heat-insulating tube 40 and the mounting member 50. The existence of the mounting gaps will further reduce the heat transferred from the heat-insulating tube 40 to the mounting member 50 in the axial direction, and reduce unnecessary heat loss of the heating element 20. In other embodiments, the heat-insulating tube 40 may not be provided, and the thickness of the mounting member 50 may be simply increased to replace a part of the original heat-insulating tube 40. However, this will increase the volume of the mounting member 50. When the volume of the mounting member 50 is large, even if the mounting member 50 has a low thermal conductivity, over time, the mounting member 50 itself will absorb a part of the heat, increasing the heat loss of the heating structure and reducing the energy utilization rate of the heating structure.

[0054] Please refer to Figure 6 , preferably, in some embodiments, the heat-conducting tube 30 is axially divided into adjacent first tube body 31 and second tube body 32, Figure 6 The dotted line in

[0055] is the demarcation line between the first tube body 31 and the second tube body 32. The first tube body 31 is located at one end away from the non-insertion section 112, and the second tube body 32 is located at one end close to the non-insertion section 112. An avoidance opening 33 is formed on the second tube body 32. The avoidance opening 33 is, for example, a through hole formed on the second tube body 32 or a strip-shaped notch formed on the second tube body 32. By providing the avoidance opening 33, the contact area between the second tube body 32 and the aerosol-forming matrix A can be reduced, so that the heat on the second tube body 32 is relatively less than that on the first tube body 31. In this way, when the heating structure heats the aerosol-forming matrix A, the part of the aerosol-forming matrix A where the matrix section A3 is close to the cooling section A4 can be preferentially heated.

[0056] Please refer to Figure 2 , in the embodiment of the present application, the heating element 20 extends axially from the insertion section 111 to the non-insertion section 112, and passes through the mounting member 50 and continues to extend to the end of the non-insertion section 112 away from the insertion section 111. The lead wire 70 is electrically connected to the heating element 20 on the side of the mounting member 50 away from the heat-insulating tube 40.

[0057] See also Figure 7 The heating structure further includes a receiving member 80, a mounting seat 90 and a sleeve 100. The receiving member 80 has a receiving cavity, and the receiving cavity is used to receive the aerosol-forming matrix A. For example, the receiving member 80 is cylindrical, and the bottom of the receiving member 80 is used to support the air inlet end A1 of the aerosol-forming matrix A, or the bottom of the receiving member 80 and the air inlet end A1 of the aerosol-forming matrix A are spaced apart to leave sufficient air inlet space, and an insertion hole is provided at the bottom of the receiving member 80 to facilitate the insertion of the heating base 10 with the heat pipe 30 installed into the interior of the aerosol-forming matrix A. The sleeve 100 is sleeved on the outside of the receiving member 80, and an annular hollow cavity is provided between the sleeve 100 and the receiving member 80, and the heat of the heating structure is reduced from diffusing to the outside of the sleeve 100 through the annular hollow cavity. The mounting seat 90 is fixed to one end of the sleeve 100, and the receiving piece 80 is fixed to the mounting seat 90. An insertion port that matches the outer shape of the aerosol-forming matrix A is provided on the mounting seat 90. The barrel mouth of the receiving piece 80 is located on the side facing the insertion port, and the barrel bottom of the receiving piece 80 is located on the side away from the insertion port. Part of the structure of the aerosol-forming matrix A is inserted into the receiving cavity of the receiving piece 80 through the insertion port and the barrel mouth of the receiving piece 80.

[0058] by Figure 1 The processing process of the heating structure is explained by taking the heating element 20 as a sheet-shaped conductive layer as an example: a thick film conductive layer is printed on the outer wall of the heating body 11 of the heating substrate 10. An insulating layer 60 is sleeved on the outer wall of the conductive layer. After the insulating layer 60 is installed, the heat-conducting tube 30 is sleeved, and the heat-conducting tube 30 and the puncture body 12 are in contact with each other. After the heat-conducting tube 30 is sleeved, the insulation tube 40 is continued to be sleeved, and the insulation tube 40 and the heat-conducting tube 30 are in contact with each other. After the insulation tube 40 is sleeved, the mounting member 50 is sleeved through the mounting hole 51, and then ceramic glue is filled between the mounting hole 51 and the non-insertion section 112 of the heating body 11 to perform a curing effect. The designed heating structure is simple and easy to produce and process.

[0059] In the existing heating structure, since the heating substrate 10 is made of alumina ceramic or zirconia ceramic, the thermal conductivity of alumina is 22-30W / mk, and the thermal conductivity of zirconia ceramic is 3W / mk, the thermal conductivity is relatively low, and the heat conduction time is long, resulting in a large temperature difference between the middle section and the two ends of the heating substrate 10, which is basically more than 50 degrees Celsius, and the maximum difference can reach more than 70 degrees Celsius. When the heating structure cannot provide a uniform heating effect to each part of the aerosol-forming substrate A (substrate section A1), the taste of the aerosol will be affected.

[0060] Correspondingly, by adopting the heating structure in the above-mentioned embodiments of the present application, the heat on the heating matrix 10 inserted into the aerosol-forming matrix A can be homogenized through the heat-conducting tube 30, so that each part of the aerosol-forming matrix A in contact with the heating structure can obtain a relatively uniform heating effect (for example, controlling the temperature difference on the heating matrix 10 within 30 degrees Celsius), thereby improving the taste of the aerosol. Moreover, the designed heating structure can not only homogenize the heat, but also further prevent the heat generated by the heating element 20 from being transferred to the non-insertion section 112 side of the heating body 11 through the heat-insulating tube 40 and the mounting member 50 designed thereon, so that the heat generated by the heating element 20 is distributed as much as possible in the insertion section 111 of the heating body 11 to more fully and uniformly heat the aerosol-forming matrix A, improving the energy utilization rate of the heating structure.

[0061] In another embodiment of the present application, a heat-not-burn atomizing device is provided, including a mounting bracket 110, a housing 120, a power source, a control board, and the heating structure in the above-mentioned embodiment. Among them, the mounting bracket 110, the power source, the control board, and the heating structure are all arranged in the housing 120. The power source is connected to the heating element 20 through a lead wire 70, and the power source and the heating element 20 are respectively connected to the control board. Electric energy is provided to the heating element 20 through the power source, and the working state of the heating element 20 is controlled through the control board. The mounting bracket 110 is connected to the end of the sleeve 100 far from the mounting base 90. Specifically, the mounting member 50 can be fixed on the end of the mounting bracket 110 close to the sleeve 100. The mounting member 50 is specifically a directional block to facilitate the fixed connection between the mounting member 50 and the mounting bracket 110. In other embodiments, the mounting bracket 110 may not be provided, and the mounting member 50 is directly fixed on the end of the sleeve 100 far from the mounting base 90. In addition to being square, the mounting member 50 can also be cylindrical, prismatic, or other special-shaped. The heat-not-burn atomizing device has the heating structure in the above-mentioned embodiment, so it also has the advantages of the heating structure in the above-mentioned embodiment, so it will not be elaborated here.

[0062] The above uses specific examples to elaborate on 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 technical field to which the present application belongs, based on the idea of the present application, several simple deductions, deformations, or substitutions can also be made.

Claims

1. A heating structure, characterized in that, Comprising: A heating matrix, the heating matrix includes an axially adjacent insertion section and a non-insertion section, the insertion section is for inserting into an aerosol-forming substrate, and the non-insertion section is disposed outside the aerosol-forming substrate; A heating element, the heating element is fixed to the heating matrix, and the heating element is for generating heat to heat the aerosol-forming substrate; And A heat conduction tube, the heat conduction tube is sleeved on the insertion section of the heating matrix, and the heat conduction tube is for evenly distributing heat to facilitate uniform heating of the aerosol-forming substrate.

2. The heating structure according to claim 1, wherein It further includes a heat insulation tube, the heat insulation tube is sleeved on the non-insertion section of the heating matrix, the heat insulation tube and the heat conduction tube are on the same side in the radial direction of the heating matrix, and the heat conduction coefficient of the heat insulation tube is lower than that of the heat conduction tube.

3. The heating structure according to claim 2, characterized in that, Both the heat insulation tube and the heat conduction tube are sleeved on the outside of the heating matrix.

4. The heating structure according to claim 2, characterized in that, There is a spaced-apart space between the inner wall of the heat insulation tube and the outer wall of the non-insertion section.

5. The heating structure according to claim 4, wherein There is a first protrusion on the inner wall of the heat insulation tube, and the first protrusion contacts the non-insertion section.

6. The heating structure according to claim 4, wherein A plurality of second protrusions are provided on one end face of the heat insulation tube facing the heat conduction tube, and the second protrusions contact the heat conduction tube.

7. The heating structure according to claim 2, characterized in that, The heating matrix includes an axially adjacent heating body and a puncturing body, the heating body includes the insertion section and the non-insertion section, the insertion section is located at one end close to the puncturing body, and the non-insertion section is located at one end far from the puncturing body; the heating body is columnar, and the puncturing body is conical.

8. The heating structure according to claim 7, wherein, It further includes a mounting member, the radial dimension of the puncturing body is larger than that of the heating body, both ends of the heat conduction tube respectively abut against the puncturing body and the heat insulation tube, and one end of the heat insulation tube far from the heat conduction tube abuts against the mounting member; the mounting member is fixed to the non-insertion section, and the mounting member is for fixing the heating structure inside a heat-not-burn atomizing device.

9. The heating structure according to claim 8, wherein, A mounting hole is provided on the mounting member, the mounting member is sleeved on the non-insertion section through the mounting hole, and ceramic glue is filled between the mounting hole and the non-insertion section to fixedly connect the mounting member and the non-insertion section; and / or, the heat conduction coefficient of the mounting member is not higher than 20W / m.k.

10. The heating structure according to claim 1, characterized in that, The heat conduction tube is axially divided into a first tube body and a second tube body, the first tube body is located at one end far from the non-insertion section, the second tube body is located at one end close to the non-insertion section, and an avoidance opening is provided on the second tube body.

11. A heat-not-burn atomization device, characterized in that, Comprising a heating structure as described in any one of claims 1 to 10.

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