Heating module and heating non-combustion device

Abstract

The utility model provides a heating module and a heating non-combustion device. The heating module comprises a heating body, a fixing pipe and a heat insulation pipe. The heating body is annularly arranged, the two opposite ends of the heating body are arranged in a spaced mode, the heating body comprises a plurality of heating parts in the circumferential direction of the heating body, the parts, in the axial direction, of every two adjacent heating parts are connected with each other, and the rest parts are arranged in a spaced mode. The heating body is sleeved with the fixing pipe, and the heating body is fixed to the inner side wall of the fixing pipe. The fixed pipe is sleeved with the heat insulation pipe, the inner side wall of the heat insulation pipe and the outer side wall of the fixed pipe are arranged in a spaced mode, so that a first heat insulation cavity is defined by the heat insulation pipe and the fixed pipe, and a closed second heat insulation cavity is formed in the heat insulation pipe. The double-layer heat insulation cavity is arranged, and double-layer heat insulation and heat dissipation can be carried out on the heating body. According to the heating module, the heat insulation performance can be improved, and the situation that the temperature of a machine body of the whole machine is too high in the continuous suction process of a user due to heat overflow of the heating body is better avoided.

Description

Technical Field

[0001] The present application belongs to the field of heat-without-combustion technology, and specifically relates to a heating module and a heat-without-combustion device. Background Art

[0002] Heat-not-burn devices typically include a heating module for heating the heat-not-burn cartridge. The heating element in this module is typically housed within a vacuum tube with a vacuum insulation chamber. However, the insulation provided by this structure is less than ideal. During use, some heat is still transferred through the vacuum tube, resulting in a high temperature and a burning sensation. Furthermore, due to poor insulation and heat retention, heat loss occurs, forcing the heating element to operate at high power for extended periods of time to achieve the optimal atomization temperature, leading to excessive energy consumption. Utility Model Content

[0003] In view of this, a first aspect of the present application provides a heating module, comprising:

[0004] The heating element is arranged in an annular shape and has gaps at opposite ends thereof. The heating element includes a plurality of heating portions along its circumferential direction, two adjacent heating portions are connected to each other along their axial directions, and the remaining portions are gaps;

[0005] A fixed tube, sleeved on the heating element, and the heating element is fixed to the inner wall of the fixed tube;

[0006] The insulation tube is sleeved on the fixed tube, and a gap is set between the inner wall of the insulation tube and the outer wall of the fixed tube, so that the insulation tube and the fixed tube are surrounded by a first insulation cavity, and a sealed second insulation cavity is provided in the insulation tube.

[0007] The heating module provided in the first aspect of the present application is provided with a fixed tube in addition to the heating element and the insulation tube. Both the fixed tube and the insulation tube are hollow tubular bodies. First, the fixed tube is placed outside the heating element so that the heating element is fixed to the inner wall of the fixed tube to achieve the fixation of the heating element. Subsequently, the insulation tube is placed outside the fixed tube, and a gap is set between the insulation tube and the fixed tube, that is, there is a certain gap between the inner wall of the insulation tube and the outer wall of the fixed tube. In this way, the insulation tube and the fixed tube can enclose a first annular insulation cavity, and the insulation tube itself has a vacuum-sealed second insulation cavity.

[0008] In summary, compared to the only second insulation cavity in the related art, the present application adds a first insulation cavity, that is, the present application sets a double-layer insulation cavity, which can perform double-layer insulation and heat dissipation on the heating element. The first insulation cavity is located on the longitudinal coaxial inner side of the second insulation cavity, wherein the first insulation cavity can effectively isolate the direct contact between the inner wall of the insulation tube and the heating element, reduce heat loss and reduce the surface temperature of the insulation tube. Therefore, the heating module provided by the present application can improve the thermal insulation performance, better isolate the heat overflow of the heating element, and cause the temperature of the entire machine to be too high during the user's continuous suction process. At the same time, it can also improve the heat storage effect, reduce heat overflow, reduce the power consumption of the entire machine, and improve reliability. In addition, the heating module provided by the present application is modular in design and compact in size, which can reduce the development volume of the entire machine and improve user experience.

[0009] The outer side walls of the fixed tube at both opposite ends along the axial direction thereof are both provided with annular supporting portions, and at least a portion of the annular supporting portion is arranged in the insulation tube and abuts against the inner side wall of the insulation tube.

[0010] The fixing tube, the annular supporting portion, and the thermal insulation tube are arranged to form the first closed thermal insulation cavity.

[0011] Among them, the two annular supporting parts are both provided with an air inlet hole connected to the first heat-insulating cavity, and the first heat-insulating cavity and the two air inlet holes form an open air flow cavity, and the air flow cavity is used to connect the external gas with the heat-not-burn cigarette cartridge.

[0012] Wherein, along the axial direction of the fixed tube, an annular step portion is protruding from the end of the annular supporting portion, and the annular step portion is overlapped on the end side surface of the insulation tube along the axial direction thereof.

[0013] Wherein, the annular step portion is provided with a through hole connected to the air inlet hole.

[0014] In which, the fixed tube includes a tube body and two fixing rings arranged on opposite sides of the tube body along the axial direction of the tube body, the tube body is supported between the two fixing rings, and the outer side wall of the fixing ring is provided with the annular supporting portion, and the tube body and the two fixing rings are an integrated structure or a split structure.

[0015] A second aspect of the present application provides a heat-without-combustion device, which includes a heating module as provided in the first aspect of the present application.

[0016] The heat-without-combustion device provided in the second aspect of this application, by employing the heating module provided in the first aspect of this application, can improve the thermal insulation and heat preservation performance of the heating module, achieve high thermal efficiency, and reduce overall device power consumption. Furthermore, the heating module is easily modularized and standardized, has high manufacturability, good consistency, and is compact, contributing to a lightweight design of the entire device.

[0017] The heating-without-combustion device comprises a shell, a bracket, and a top cover, the top cover being arranged at an opening at one end of the shell, the top cover being provided with an insertion hole and an air inlet hole, the bracket being arranged in the shell, the bracket being provided with a receiving groove, the bottom wall of the receiving groove being convexly provided with a support portion, the heating module being arranged on the bracket, and the heating module being the heating module provided in the first aspect of the present application, the insertion hole being connected to the receiving groove through a fixing pipe of the heating module, and the air inlet hole being connected to the two air inlet holes, the first heat-insulating cavity, and the receiving groove;

[0018] Among them, the heat-not-burn tobacco cartridge is used to be inserted into the insertion hole, the fixing tube, and the receiving groove in sequence and to be held against the supporting portion. When the heat-not-burn tobacco cartridge is inhaled, external gas can pass through the air inlet hole, one of the air inlet holes, the first heat-insulating cavity, the other air inlet hole, and the receiving groove in sequence and enter the heat-not-burn tobacco cartridge, and be discharged from the filter portion of the heat-not-burn tobacco cartridge.

[0019] Among them, the insulation tube of the heating module includes an annular first part and a second part, the first part is sleeved on the fixed tube, and the second part includes a straight part and two arc-shaped parts arranged on opposite sides of the straight part, the two arc-shaped parts are fixed to the outer wall of the first part, the first part, the straight part, and the two arc-shaped parts are arranged to form the second insulation cavity; the end of the first part is arranged in the receiving groove, and the connection between the first part and the arc-shaped part is clamped on the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the heating module in one embodiment of the present application.

[0022] Figure 2 for Figure 1 The exploded view of the heating module is shown.

[0023] Figure 3 for Figure 1 A cross-sectional schematic diagram of the heating module is shown.

[0024] Figure 4 Schematic diagram of the three-dimensional structure of the fixed tube in one embodiment of the present application.

[0025] Figure 5 This is a cross-sectional schematic diagram of a heating module in another embodiment of the present application.

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of a fixed tube in another embodiment of the present application.

[0027] Figure 7 This is a cross-sectional schematic diagram of a heating module in another embodiment of the present application.

[0028] Figure 8 This is an exploded view of a heating module in another embodiment of the present application.

[0029] Figure 9 for Figure 8 A cross-sectional schematic diagram of the heating module is shown.

[0030] Figure 10 for Figure 9 The schematic diagram of a partially enlarged cross section of the heating module shown.

[0031] Figure 11 for Figure 8 The three-dimensional structural diagram of the fixing ring in the heating module is shown.

[0032] Figure 12 This is a schematic cross-sectional view of a heat-without-combustion device in one embodiment of the present application.

[0033] Figure 13 for Figure 12 The cross-sectional schematic diagram shown is of a heat-not-burn device in combination with a heat-not-burn cigarette cartridge.

[0034] Figure 14 for Figure 13 The diagram shows a partially enlarged cross-sectional view of the heat-not-burn device in combination with a heat-not-burn cigarette cartridge.

[0035] Figure 15 for Figure 12 The schematic diagram of a partially enlarged cross section of the heat-without-burning device shown.

[0036] Description of labels:

[0037] Heating module-1, heat-not-burn device-2, heat-not-burn cigarette cartridge-3, heating element-10, heating portion-11, first gap-12, second gap-13, fixing tube-20, first thermal insulation cavity-200, annular supporting portion-21, air inlet-210, air flow cavity-211, tube body-22, fixing ring-23, annular step portion-24, through hole-240, thermal insulation tube-30, second thermal insulation cavity-300, first part-31, second part-32, straight portion-321, curved portion-322, outer shell-40, bracket-50, receiving groove-500, supporting portion-51, top cover-60, insertion hole-600, air inlet-601, controller-70, battery-80. DETAILED DESCRIPTION

[0038] The following are preferred implementations of the present application. It should be noted that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

[0039] Before introducing the technical solutions of the present application, the technical problems in the related technologies are introduced in detail.

[0040] Heat-not-burn (HNB) devices are becoming increasingly popular. These devices consist of a heating module into which a HNB cartridge is inserted. The heating element within the module then heats the HNB cartridge without causing it to burn. During operation, the heating element continuously radiates heat, causing the device to heat up externally and become hot to the touch.

[0041] Therefore, a vacuum insulation tube is usually installed outside the heating element. The vacuum tube has a vacuum insulation cavity inside, which together with the heating element forms an insulation component. This approach can provide a certain degree of insulation, but the effect is not ideal. During user use, the residual heat can only be limitedly controlled. Some heat will still be transmitted through the vacuum tube. The temperature control is not in place, the body temperature is high, and it becomes hot, which makes the overall user experience poor. In addition, when the insulation effect is poor, due to heat loss, the heating element needs to work at high power for a long time to achieve the optimal atomization temperature, resulting in excessive energy consumption of the equipment.

[0042] Some people also add a layer of cavity outside the vacuum tube. Compared with this technology, the entire module is larger in size. The larger the volume, the more heat it absorbs. A large amount of heat is absorbed by the module structural parts, resulting in less than ideal thermal efficiency of the heating element.

[0043] In view of this, in order to solve the above problems, this application provides a heating module. Please refer to Figure 1-Figure 3 , Figure 1 This is a schematic diagram of the three-dimensional structure of the heating module in one embodiment of the present application. Figure 2 for Figure 1 The exploded view of the heating module is shown. Figure 3 for Figure 1The cross-sectional schematic diagram of the heating module shown. The heating module 1 provided in this embodiment includes a heating element 10, a fixed tube 20, and an insulating tube 30. The heating element 10 is arranged in a ring shape and gaps are set at the opposite ends of the heating element 10. The heating element 10 includes a plurality of heating parts 11 along its circumferential direction, and the parts of two adjacent heating parts 11 along their axial directions are connected to each other, and the remaining parts are set in gaps. The fixed tube 20 is sleeved on the heating element 10, and the heating element 10 is fixed to the inner wall of the fixed tube 20. The insulating tube 30 is sleeved on the fixed tube 20, and a gap is set between the inner wall of the insulating tube 30 and the outer wall of the fixed tube 20, so that the insulating tube 30 and the fixed tube 20 are surrounded by a first insulating cavity 200, and the insulating tube 30 has a sealed second insulating cavity 300.

[0044] The heating module 1 provided in this embodiment is mainly used in the heat-not-burn device 2. The heat-not-burn cigarette cartridge 3 can be inserted into the heating module 1, and the heating element 10 is arranged around the heat-not-burn cigarette cartridge 3, thereby heating but not burning the heat-not-burn cigarette cartridge 3.

[0045] The heating module 1 primarily comprises a heating element 10, a fixing tube 20, and an insulating tube 30. The heating element 10 generates heat under the control of a controller 70. The heating element 10 is annular or arc-shaped and can be positioned around the heat-not-burn cigarette cartridge 3. In this embodiment, a gap is provided between the opposing ends of the heating element 10 to prevent short circuiting.

[0046] The heating element 10 can be divided into a plurality of heating parts 11 along its circumferential direction, and each heating part 11 is in the shape of a long strip. Along the axial direction of the heating part 11, parts of two adjacent heating parts 11 are connected to each other, and the remaining parts are provided with gaps. In other words, in this embodiment, a plurality of gaps can be opened in the heating element 10, thereby dividing the heating element 10 into a plurality of heating parts 11, but the gaps do not completely penetrate the heating element 10, so that two adjacent heating parts 11 are partially connected to each other, and the remaining parts have a certain gap. By dividing the original whole heating element 10 into a plurality of heating parts 11, the resistance value of the heating element 10 can be increased, so that the heat is more concentrated when the heating element 10 generates heat, and the heating time is faster.

[0047] Optionally, a first gap 12 and a second gap 13 may be provided on the heating element 10 , wherein the first gap 12 is smaller than the second gap 13 , and the first gap 12 and the second gap 13 are arranged at intervals along the circumferential direction of the heating element 10 .

[0048] The fixing tube 20 is a hollow tubular body 22. Specifically, the fixing tube 20 has through-holes extending axially through opposite ends. At least a portion of the heating element 10 is disposed within the fixing tube 20 and secured to the inner sidewall thereof. In other words, the fixing tube 20 is sleeved over the heating element 10 and is therefore primarily used to secure the heating element 10. The fixing tube 20 is made of a high-temperature-resistant material, such as rubber, ceramic, or glass.

[0049] The thermal insulation tube 30 also comprises a hollow tubular body 22. Specifically, the interior of the thermal insulation tube 30 is provided with through-holes extending axially through opposite ends thereof. At least a portion of the fixed tube 20 is disposed within the thermal insulation tube 30, that is, the thermal insulation tube 30 is sheathed around the fixed tube 20. The thermal insulation tube 30 is made of metal, such as stainless steel, an iron alloy, or an aluminum alloy.

[0050] The fixed tube 20 and the insulated tube 30 within the insulated tube 30 do not touch each other. Instead, a gap is created between the insulated tube 30 and the fixed tube 20, i.e., there is a certain gap between the inner wall of the insulated tube 30 and the outer wall of the fixed tube 20. This creates an annular first insulated cavity 200 enclosed by the insulated tube 30 and the fixed tube 20. This first insulated cavity 200 effectively isolates heat from direct contact with the inner wall of the insulated tube 30, reducing heat loss and lowering the surface temperature of the insulated tube 30, acting as a primary thermal barrier. Optionally, the first insulated cavity 200 can be a vacuum-sealed insulated cavity or an open cavity 211 for air flow.

[0051] In addition, the interior of the insulation tube 30 itself has an annular and sealed second insulation cavity 300, so the second insulation cavity 300 is a vacuum insulation cavity, and the insulation tube 30 is a vacuum tube. When heat is transferred to the inner wall of the insulation tube 30, the second insulation cavity 300 can serve as a second insulation barrier to further prevent heat from dissipating outside the vacuum tube. In other words, the first insulation cavity 200 is located on the longitudinal coaxial inner side of the second insulation cavity 300, and the heat emitted by the heating element 10 needs to pass through the first insulation cavity 200 and the second insulation cavity 300 in sequence before it can be dissipated outside the heating module 1.

[0052] In summary, compared to the only second insulation cavity 300 in the related art, the present embodiment adds a first insulation cavity 200 on this basis, that is, the present embodiment provides a double-layer insulation cavity, which can perform double-layer insulation and heat dissipation on the heating element 10. Therefore, the heating module 1 provided in the present embodiment can improve the thermal insulation performance, better isolate the heat overflow of the heating element 10 from causing the temperature of the entire machine to be too high during the user's continuous suction process. At the same time, it can also improve the heat storage effect, reduce heat overflow, reduce the power consumption of the entire machine, and improve reliability. In addition, the heating module 1 provided in the present embodiment has an insulation tube 30, a fixed tube 20, and a heating element 10 that are sequentially arranged, with a simple structure, a modular design, and a compact size. It can reduce the development volume of the entire machine and improve the user experience.

[0053] Please refer to Figure 1 、 Figure 4-Figure 5 , Figure 4 Schematic diagram of the three-dimensional structure of the fixed tube in one embodiment of the present application. Figure 5 FIG2 is a cross-sectional schematic diagram of a heating module in another embodiment of the present application. In this embodiment, an annular abutting portion 21 is provided on the outer sidewalls of the fixed tube 20 at both opposite ends along its axial direction. At least a portion of the annular abutting portion 21 is disposed within the insulating tube 30 and abuts against the inner sidewall of the insulating tube 30.

[0054] Along the axial direction of the fixed tube 20, an annular supporting portion 21 is provided on the outer side walls at the opposite ends of the fixed tube 20, and the annular supporting portion 21 is provided in the circumferential direction of the outer side wall of the end portion of the fixed tube 20. At least part of the annular supporting portion 21 is provided in the heat-insulating tube 30. This embodiment is only schematically described by taking the entire annular supporting portion 21 as being provided in the heat-insulating tube 30. The annular supporting portion 21 can be supported on the inner side wall of the heat-insulating tube 30, that is, the annular supporting portions 21 at the upper and lower ends can contact the inner side wall of the heat-insulating tube 30, thereby realizing the positioning of the fixed tube 20 in the heat-insulating tube 30 and ensuring the accuracy of the position of the fixed tube 20 in the heat-insulating tube 30. Similarly, the positioning accuracy of the heating element 10 in the heat-insulating tube 30 can also be improved, which is convenient for the subsequent assembly of the whole machine and the insertion of the heat-not-burn cigarette cartridge 3.

[0055] Please refer again Figure 5 In this embodiment, the fixing tube 20 , the annular supporting portion 21 , and the thermal insulation tube 30 are arranged to form the first closed thermal insulation cavity 200 .

[0056] On the basis of adding the annular supporting portion 21, the annular supporting portion 21 can be made into a dense and hole-free structure, so that the annular supporting portions 21 at the upper and lower ends can contact the inner wall of the insulation tube 30, thereby sealing the upper and lower ends of the first insulation cavity 200 formed by the fixed tube 20 and the insulation tube 30, forming the first sealed insulation cavity 200. The closed first insulation cavity 200 isolates the inner wall of the insulation tube 30 from the heating element 10, performing the first layer of insulation, while the vacuum second insulation cavity 300 in the insulation tube 30 is a double layer of insulation. This embodiment can further improve the insulation performance of the heating module 1 by providing two layers of sealed insulation cavities.

[0057] Please refer to Figure 6-Figure 7 , Figure 6 This is a schematic diagram of the three-dimensional structure of a fixed tube in another embodiment of the present application. Figure 7This is a cross-sectional schematic diagram of a heating module in another embodiment of the present application. In this embodiment, the two annular abutting portions 21 are each provided with an air inlet 210 that communicates with the first heat-insulating cavity 200. The first heat-insulating cavity 200 and the two air inlet 210 form an open air flow cavity 211, which is used to connect external air to the heat-not-burn cigarette cartridge 3.

[0058] On the basis of adding the annular supporting portion 21, air inlet holes 210 can be opened on both the upper and lower annular supporting portions 21, and each air inlet hole 210 is connected to the first thermal insulation cavity 200. In other words, the upper and lower ends of the first thermal insulation cavity 200 are respectively connected to an air inlet hole 210, thereby forming an open air flow cavity 211. The upper and lower ends of the air flow cavity 211 are not sealed, but can be connected to other parts respectively. For example, the upper part of the air flow cavity 211 can be connected to the outside air, and the lower part can be connected to the heat-not-burn cigarette cartridge 3. At this time, the air flow cavity 211 can serve as part of the airway in the heat-not-burn device 2. When the user inhales, the outside air can flow into the first thermal insulation cavity 200 through the air inlet, dissipating heat from the fixed tube 20 and the thermal insulation tube 30, reducing the temperature of the outer wall of the thermal insulation tube 30, and improving the thermal insulation efficiency of the thermal insulation tube 30. And as the gas in the first heat-insulating cavity 200 with a certain temperature enters the heat-not-burn cigarette cartridge 3, the flowing airflow can also be used as a heating airflow to perform secondary heating on the heat-not-burn cigarette cartridge 3, thereby improving the heating effect of the heat-not-burn cigarette cartridge 3.

[0059] Please adopt the Figures 8-11 , Figure 8 This is an exploded view of a heating module in another embodiment of the present application. Figure 9 for Figure 8 A cross-sectional schematic diagram of the heating module is shown. Figure 10 for Figure 9 The schematic diagram of a partially enlarged cross section of the heating module shown. Figure 11 for Figure 8 The three-dimensional structure diagram of the fixing ring in the heating module is shown. In this embodiment, the fixing tube 20 includes a tube body 22 and two fixing rings 23 provided on opposite sides of the tube body 22 along the axial direction of the tube body 22. The tube body 22 is supported between the two fixing rings 23. The outer wall of the fixing ring 23 is provided with the annular supporting portion 21. The tube body 22 and the two fixing rings 23 are of an integral structure or a split structure.

[0060] The fixed tube 20 can be divided into three parts along its axial direction: a tube body 22, and two fixing rings 23 provided on opposite sides of the tube body 22 in the axial direction, that is, a fixing ring 23 is provided above the tube body 22, and a fixing ring 23 is also provided below the tube body 22. The tube body 22 can be supported between the two fixing rings 23, and the heating element 10 is fixed on the inner side walls of the tube body 22 and the upper and lower fixing rings 23. The outer side wall of the fixing ring 23 can be provided with the annular supporting portion 21 mentioned above. In other words, the fixed tube 20 can be divided into a straight cylindrical tube body 22, and a fixing ring 23 with a thicker wall than the tube body 22. The portion of the fixing ring 23 that is thicker than the wall of the tube body 22 can constitute the annular supporting portion 21.

[0061] In this embodiment, the tube body 22 and the two fixing rings 23 are an integrated structure or a split structure. In this embodiment, the tube body 22 and the two fixing rings 23 are only schematically described as a split structure.

[0062] Optionally, the fixing ring 23 is also made of a high-temperature resistant material, such as rubber, ceramic, glass, etc.

[0063] In this embodiment, an annular step portion 24 is protruded from the end of the annular supporting portion 21 along the axial direction of the fixed tube 20 , and the annular step portion 24 overlaps the end side surface of the insulation tube 30 along the axial direction thereof.

[0064] In addition to providing an annular abutment 21 to improve positioning, an annular step portion can also be provided on the axial end of each annular abutment 21 along the fixed tube 20. Specifically, an annular step portion 24 is provided on the ends of the annular abutment 21 at both the upper and lower ends of the fixed tube 20. The annular step portion 24 is provided circumferentially around the outer wall of the annular abutment 21. In this embodiment, a portion of the annular abutment 21 is disposed within the thermally insulated tube 30 along with the fixed tube 20, while the ends of the annular abutment 21 are disposed outside the thermally insulated tube 30. The annular step portion 24 forms a stepped structure and overlaps the axial end surface of the thermally insulated tube 30. In other words, the upper annular step portion 24 overlaps the upper end surface of the thermally insulated tube 30, while the lower annular step portion 24 overlaps the lower end surface of the thermally insulated tube 30. The overlapping annular step portion 24 and the thermally insulated tube 30 prevents the fixed tube 20 from falling out of the thermally insulated tube 30, thereby improving the stability of the connection between the fixed tube 20 and the thermally insulated tube 30.

[0065] Optionally, the annular step portion 24 and the annular supporting portion 21 may be an integral structure or a split structure. This embodiment is only schematically described with the annular step portion 24 and the annular supporting portion 21 being an integral structure.

[0066] In this embodiment, the annular step portion 24 is provided with a through hole 240 that connects to the air inlet hole 210. In addition to the air inlet hole 210 being provided on the annular step portion 24, this embodiment further provides a through hole 240 that connects to the air inlet hole 210. This increases the area of ​​the air inlet hole 210 in the air flow cavity 211, allowing more external air to enter the air flow cavity 211, increasing the gas flow rate and further improving the heat dissipation effect of the first thermal insulation cavity 200. This also allows more heated gas from the first thermal insulation cavity 200 to enter the heat-not-burn cigarette cartridge 3, further improving the secondary heating effect.

[0067] Please refer to Figure 12-13 , Figure 12 This is a schematic cross-sectional view of a heat-without-combustion device in one embodiment of the present application. Figure 13 for Figure 12 The heat-not-burn device shown is a schematic cross-sectional view of the heat-not-burn device in combination with the heat-not-burn cigarette cartridge. This embodiment provides a heat-not-burn device 2, which includes a heating module 1 as provided in the above embodiment of the present application.

[0068] The heat-not-burn device 2 is a device specifically used for heat-not-burn cigarette cartridges 3. The heat-not-burn device 2 mainly includes a housing 40, a bracket 50, a top cover 60, a heating module 1, a controller 70, a battery 80, etc. The housing 40 is the shell of the heat-not-burn device 2, which is used to install and protect other components. The bracket 50, the heating module 1, the controller 70, and the battery 80 are all arranged in the housing 40, and the top cover 60 is arranged at the opening at one end of the housing 40 to seal the housing 40. The heating module 1 can be arranged on the bracket 50, and the bracket 50 is used to support the heating module 1. The bracket 50 is also used to support the heat-not-burn cigarette cartridge 3. The heat-not-burn cigarette cartridge 3 can pass through the top cover 60 and the heating module 1 and be arranged on the bracket 50. The controller 70 is electrically connected to the power supply and the heating element 10 in the heating module 1. The power supply is used to provide energy, and the controller 70 can control various parameters of the operation of the heating element 10.

[0069] The heat-without-combustion device 2 provided in this embodiment, by employing the heating module 1 provided in the aforementioned embodiments of this application, can improve the thermal insulation and heat preservation performance of the heating module 1, achieve high thermal efficiency, and reduce overall power consumption. Furthermore, the heating module 1 is easily modularized and standardized, has high manufacturability, good consistency, and is compact, contributing to a lightweight design of the overall device.

[0070] Please refer to Figure 13-14 , Figure 14 for Figure 13The heat-not-burn device shown is a partially enlarged cross-sectional schematic diagram when it is used in conjunction with a heat-not-burn cigarette cartridge. In this embodiment, the heat-not-burn device 2 includes a housing 40, a bracket 50, and a top cover 60. The top cover 60 is provided at an opening at one end of the housing 40. The top cover 60 is provided with an insertion hole 600 and an air inlet 601. The bracket 50 is provided in the housing 40. The bracket 50 is provided with a receiving groove 500. The bottom wall of the receiving groove 500 is provided with a support portion 51. The heating module 1 is provided on the bracket 50, and the heating module 1 is the heating module 1 provided in the above embodiment of the present application. The insertion hole 600 is connected to the receiving groove 500 through the fixing tube 20 of the heating module 1. The air inlet 601 is connected to the two air inlet holes 210, the first heat-insulating cavity 200, and the receiving groove 500.

[0071] Among them, the heat-not-burn cigarette cartridge 3 is used to be inserted into the insertion hole 600, the fixing tube 20, and the receiving groove 500 in sequence and supported against the support portion 51. When the heat-not-burn cigarette cartridge 3 is inhaled, external gas can pass through the air inlet 601, one of the air inlet holes 210, the first heat-insulating cavity 200, the other air inlet hole 210, and the receiving groove 500 in sequence and enter the heat-not-burn cigarette cartridge 3, and be discharged from the filter portion of the heat-not-burn cigarette cartridge 3.

[0072] The top cover 60 may be provided with an insertion hole 600 and an air inlet 601, and the bracket 50 may be provided with a receiving groove 500. The insertion hole 600 is connected to the receiving groove 500 through the fixing tube 20 of the heating module 1. Therefore, the heat-not-burn cigarette cartridge 3 can pass through the insertion hole 600 of the top cover 60 and the fixing tube 20 of the heating module 1, with its end portion being located in the receiving groove 500. In this way, the heating element 10 surrounding the outer periphery of the heat-not-burn cigarette cartridge 3 can heat the heat-not-burn cigarette cartridge 3 under the control of the controller 70.

[0073] The heating module 1 mentioned in this embodiment is the aforementioned annular support portion 21 and an air inlet hole 210 is provided on the annular support portion 21 to form an open air flow cavity 211. The air inlet hole 601 of the top cover 60 can be connected to the air inlet hole 210 above the air flow cavity 211, and the air inlet hole 210 below the air flow cavity 211 can be connected to the receiving groove 500. Since the end of the heat-not-burn cigarette cartridge 3 is arranged in the receiving groove 500, the outside air enters the first heat-not-burn cigarette cartridge 3 through the upper air inlet hole 210 and then drives the hot air in the first heat-not-burn cigarette cartridge 200 to enter the receiving groove 500 through the lower air inlet hole 210, and then enter the heat-not-burn cigarette cartridge 3, and finally discharged from the filter portion of the heat-not-burn cigarette cartridge 3, i.e., the filter tip. In this way, the hot air in the first heat-not-burn cigarette cartridge 3 can be used to achieve secondary heating of the heat-not-burn cigarette cartridge 3.

[0074] In addition, an airway connecting the outside world and the heat-not-burn tobacco cartridge 3 originally needs to be provided in the heat-not-burn device 2. In this embodiment, the open air flow cavity 211 is used as the airway, and the original airway structure in the heat-not-burn device 2 can be omitted, thereby simplifying the structure of the heat-not-burn device 2.

[0075] In addition, this embodiment also provides a raised support portion 51 on the bottom wall of the receiving groove 500. The end of the heat-not-burn cigarette cartridge 3 can be abutted against the support portion 51 when it is arranged in the receiving groove 500. This facilitates the hot air in the first heat-insulating cavity 200 to enter the heat-not-burn cigarette cartridge 3 through the receiving groove 500, preventing the end of the heat-not-burn cigarette cartridge 3 from abutting against the bottom wall of the receiving groove 500, thereby preventing gas from entering the heat-not-burn cigarette cartridge 3.

[0076] Please refer to Figure 3 and Figure 15 , Figure 15 for Figure 12 The schematic diagram of a partially enlarged cross-section of the heat-not-burn device is shown. In this embodiment, the heat-insulating tube 30 of the heating module 1 includes an annular first portion 31 and a second portion 32. The first portion 31 is sleeved on the fixed tube 20. The second portion 32 includes a straight portion 321 and two curved portions 322 located on opposite sides of the straight portion 321. The two curved portions 322 are fixed to the outer wall of the first portion 31. The first portion 31, the straight portion 321, and the two curved portions 322 enclose and form the second heat-insulating cavity 300. The end of the first portion 31 is located in the receiving groove 500, and the connection between the first portion 31 and the curved portions 322 is snap-fitted to the bracket 50.

[0077] The heat-insulating tube 30 of the heating module 1 can be divided into two parts: a first part 31 and a second part 32. The first part 31 is a straight tubular structure, with the fixed tube 20 and the heating element 10 disposed within the first part 31. Therefore, the inner wall of the first part 31 serves as the inner wall of the heat-insulating tube 30 mentioned above. The second part 32 can be further divided into a straight portion 321 and two curved portions 322. The straight portion 321 is parallel to the tube wall of the first part 31. The two curved portions 322 are bent and connected to opposite sides of the straight portion. Specifically, the upper end of the curved portion 322 is bent and connected to one curved portion 322, and the lower end of the curved portion 322 is bent and connected to the other curved portion 322. Each curved portion 322 is fixed to the outer wall of the first part 31. Therefore, the runway-shaped second part 32 and the first part 31 enclose a closed second heat-insulating cavity 300 mentioned above. Optionally, the first part 31 and the second part 32 are split structures. In other words, after the straight cylindrical first part 31 is prepared, the second part 32 with bent ends can be prepared, and then the arc portion 322 of the second part 32 is welded to the first part 31 under vacuum conditions to form a vacuum-sealed second insulating cavity 300.

[0078] It is worth noting that when the arcuate portion 322 is welded to the first portion 31, it is not welded to the end of the first portion 31, but is instead positioned at a certain distance therefrom. When the heating module 1 is mounted on the bracket 50, the end of the first portion 31 can be positioned within the receiving groove 500, and the connection between the first portion 31 and the arcuate portion 322 can be snapped onto the bracket 50, thereby assembling the heating module 1. This not only reduces the difficulty of assembling the heating module 1, but also improves its stability.

[0079] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0080] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0081] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to connection, detachable connection, or integration. They may refer to mechanical connection or electrical connection. They may refer to direct connection or indirect connection through an intermediary. They may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0082] The above details the contents provided in the embodiments of the present application, and illustrates and describes the principles and embodiments of the present application. These explanations are only intended to help understand the method and core concept of the present application. However, the contents of this specification should not be construed as limiting the present application. Those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. Such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents.

Claims

1. A heating module, characterized in that: The heating module includes: The heating element is arranged in an annular shape and has gaps at opposite ends thereof. The heating element includes a plurality of heating portions along its circumferential direction, two adjacent heating portions are connected to each other along their axial directions, and the remaining portions are gaps; A fixed tube, sleeved on the heating element, and the heating element is fixed to the inner wall of the fixed tube; The insulation tube is sleeved on the fixed tube, and a gap is set between the inner wall of the insulation tube and the outer wall of the fixed tube, so that the insulation tube and the fixed tube are surrounded by a first insulation cavity, and a sealed second insulation cavity is provided in the insulation tube.

2. The heating module according to claim 1, wherein: The outer side walls of the fixed tube at both opposite ends along the axial direction thereof are both protruded with annular supporting portions, and at least a portion of the annular supporting portion is arranged in the insulation tube and abuts against the inner side wall of the insulation tube.

3. The heating module according to claim 2, wherein: The fixing tube, the annular supporting portion, and the thermal insulation tube are arranged to form the first closed thermal insulation cavity.

4. The heating module according to claim 2, wherein: The two annular supporting parts are both provided with an air inlet hole connected to the first heat-insulating cavity. The first heat-insulating cavity and the two air inlet holes form an open air flow cavity, and the air flow cavity is used to connect the external gas with the heat-not-burn cigarette cartridge.

5. The heating module according to claim 4, wherein: Along the axial direction of the fixed tube, an annular step portion is protruding from the end of the annular supporting portion, and the annular step portion overlaps the end side surface of the thermal insulation tube along the axial direction thereof.

6. The heating module according to claim 5, wherein: The annular step portion is provided with a through hole communicating with the air inlet hole.

7. The heating module according to claim 2, wherein: The fixed tube includes a tube body and two fixing rings arranged on opposite sides of the tube body along the axial direction of the tube body. The tube body is supported between the two fixing rings. The outer side wall of the fixing ring is provided with the annular supporting portion. The tube body and the two fixing rings are an integral structure or a split structure.

8. A heat-not-burn device, characterized in that: The heating without burning device comprises a heating module as described in any one of claims 1-7.

9. The heat-not-burn device according to claim 8, wherein: The heat-not-burn device comprises a shell, a bracket, and a top cover, the top cover being arranged at an opening at one end of the shell, the top cover being provided with an insertion hole and an air inlet hole, the bracket being arranged in the shell, the bracket being provided with a receiving groove, the bottom wall of the receiving groove being convexly provided with a support portion, the heating module being arranged on the bracket, and the heating module being the heating module according to claim 4, the insertion hole being connected to the receiving groove through a fixing pipe of the heating module, and the air inlet hole being connected to the two air inlet holes, the first heat-insulating cavity, and the receiving groove; Among them, the heat-not-burn tobacco cartridge is used to be inserted into the insertion hole, the fixing tube, and the receiving groove in sequence and to be held against the supporting portion. When the heat-not-burn tobacco cartridge is inhaled, external gas can pass through the air inlet hole, one of the air inlet holes, the first heat-insulating cavity, the other air inlet hole, and the receiving groove in sequence and enter the heat-not-burn tobacco cartridge, and be discharged from the filter portion of the heat-not-burn tobacco cartridge.

10. The heat-not-burn device according to claim 9, wherein: The heat-insulating tube of the heating module includes an annular first part and a second part. The first part is sleeved on the fixed tube. The second part includes a straight part and two arc-shaped parts arranged on opposite sides of the straight part. The two arc-shaped parts are fixed to the outer wall of the first part. The first part, the straight part, and the two arc-shaped parts are arranged to form the second heat-insulating cavity; the end of the first part is arranged in the receiving groove, and the connection between the first part and the arc-shaped part is clamped on the bracket.

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