Manufacturing device and manufacturing method of heat generating structure, heat generating structure and non-combustion smoking set

Abstract

The application discloses a manufacturing device of a heating structure, which is used for manufacturing the heating structure, and the heating structure comprises an outer tube and a bearing body, a sealed cavity is formed between the outer tube and the bearing body, the outer tube comprises a tube wall and a first cover plate and a second cover plate connected to opposite ends of the tube wall, the first cover plate and the second cover plate are connected to an outer wall of the bearing body; the manufacturing device of the heating structure comprises a forming die and a high-temperature injection equipment, the forming die is internally provided with a pouring cavity and a positioning part for fixing the bearing body, the pouring cavity is provided with an annular opening corresponding to the positioning part, the forming die is provided with an injection port communicating with the pouring cavity, the pouring cavity is used for pouring to form the tube wall and the first cover plate, and the first cover plate is connected to the bearing body at the annular opening; the high-temperature injection equipment comprises a heating module for heating hot-melt material to a molten state and an injection head for being docked with the injection port. The manufacturing device of the heating structure has good product consistency. The application further relates to a manufacturing method of the heating structure, the heating structure and a non-combustion smoking set.

Description

Technical Field

[0001] This invention relates to the field of heating structure manufacturing equipment, and particularly to a heating structure manufacturing apparatus and method, a heating structure, and a non-combustible smoke set. Background Technology

[0002] Heated tobacco products are considered a revolutionary product in the tobacco industry, featuring no open flame, no ash, no secondhand smoke, and a 90% reduction in harm, while retaining 90% of the taste of traditional cigarettes. Existing heated tobacco devices use circumferential heating, with heating wires typically made of stainless steel, iron-chromium-aluminum, or similar materials. These materials are prone to oxidation, slow heating, high energy consumption, and uneven heating.

[0003] To address the aforementioned issues, carbon fiber is used as the heating element in heating devices, offering advantages such as rapid heating and high electrothermal conversion efficiency. However, carbon fiber cannot be welded and oxidizes when heated in air, experiencing significant weight loss and a substantial decrease in strength at 400 degrees Celsius. When the oxidation weight loss reaches 2-5%, the mechanical properties of carbon fiber decrease by 40-50%, and its diameter shrinks. Therefore, using carbon fiber as the heating element in heated non-combustible tobacco devices results in a short lifespan. To prevent carbon fiber oxidation, it needs to be installed within a sealed quartz tube to form the heating structure. Currently, the method for manufacturing this structure involves preparing a quartz tube, cutting a suitable-sized hole at one end, inserting the carbon fiber through the hole, and finally sealing the hole. However, this method is cumbersome, inefficient, and lacks precision in each stage of production, leading to low product consistency and yield. Summary of the Invention

[0004] In view of this, the present invention provides a device for manufacturing a heating structure, which has good product consistency and a high yield rate.

[0005] A device for manufacturing a heating structure is provided. The heating structure includes an outer tube and a carrier body at least partially disposed within the outer tube. A sealed cavity is formed between the outer tube and the carrier body. The outer tube includes a tube wall and a first cover plate and a second cover plate connected to opposite ends of the tube wall. The first cover plate and the second cover plate are connected to the outer wall of the carrier body. The device for manufacturing the heating structure includes a molding mold and a high-temperature injection equipment. The molding mold has a casting cavity and a positioning part for fixing the carrier body. The casting cavity has an annular opening corresponding to the positioning part. The molding mold has an injection port communicating with the casting cavity. The casting cavity is used to cast and form the tube wall and the first cover plate, and the first cover plate is connected to the carrier body at the annular opening. The high-temperature injection equipment includes a heating module for heating the hot-melt material to a molten state and an injection head that is connected to the injection port.

[0006] In an embodiment of the present invention, the positioning part includes a positioning hole disposed at the end of the molding die and a positioning groove disposed inside the molding die. The positioning groove is disposed opposite to the positioning hole, and the annular opening is disposed corresponding to the positioning hole. When the positioning part fixes the carrier, one end of the carrier is fixed in the positioning hole, and the other end of the carrier is fixed in the positioning groove.

[0007] In an embodiment of the present invention, the molding die includes an outer mold and an inner mold, the inner mold is disposed in the outer mold, the casting cavity is formed between the inner wall of the outer mold and the outer wall of the inner mold, the positioning hole penetrates the outer mold and the inner mold, and the positioning groove is disposed on the inner wall of the inner mold.

[0008] In an embodiment of the present invention, the outer mold includes a first cylindrical body and a first bottom plate. The first cylindrical body has a receiving cavity, and one end of the first cylindrical body has an opening for the inner mold to be inserted into the receiving cavity. The other end of the first cylindrical body is connected to the first bottom plate. The inner mold includes a second cylindrical body, a second bottom plate, and a sealing plate. One end of the second cylindrical body is connected to the sealing plate, and the other end of the second cylindrical body is connected to the second bottom plate. The positioning hole penetrates the first bottom plate and the second bottom plate, and the positioning groove is disposed on the sealing plate.

[0009] In an embodiment of the present invention, the outer mold further includes two clearance tubes, which are connected to the first cylinder. One end of each clearance tube abuts against the outer wall of the second cylinder, and the other end of each clearance tube is disposed outside the first cylinder. The clearance tubes are used to form through holes for electrode pins to extend from the cast outer tube.

[0010] In an embodiment of the present invention, the sealing plate is provided with an annular groove in the area outside the second cylinder, the annular groove is arranged around the second cylinder, and the end of the first cylinder away from the first bottom plate is disposed in the annular groove.

[0011] In an embodiment of the present invention, the molding die is further provided with an exhaust hole, which is connected to the casting cavity and is used to exhaust air when the hot melt material is poured into the casting cavity.

[0012] In an embodiment of the present invention, the above-mentioned high-temperature injection device further includes a feeding module, the heating module is connected to the feeding module, the feeding module includes an inner shell and an outer shell, the inner shell is disposed in the outer shell, a hot melt channel is formed between the outer wall of the inner shell and the inner wall of the outer shell, the injection head is connected to the outer shell and communicates with the hot melt channel, and the hot melt channel is used to accommodate the hot melt material.

[0013] In an embodiment of the present invention, the above-mentioned high-temperature injection device further includes a regulating valve, which is connected to the injection head and is used to regulate the flow rate of the hot melt material.

[0014] In an embodiment of the present invention, the above-mentioned high-temperature injection device further includes a first feed hopper and a second feed hopper. The first feed hopper and the second feed hopper are disposed on opposite sides of the outer shell. One end of the first feed hopper and the second feed hopper are provided with a feed port, and the other end of the first feed hopper and the second feed hopper are connected to the hot melt channel.

[0015] In an embodiment of the present invention, the apparatus for manufacturing the heating structure further includes a support bracket, the support bracket including a support seat connected to the support seat, the molding die fixed on the support seat, the high-temperature injection device mounted on the support bracket, and the high-temperature injection device located above the molding die.

[0016] In an embodiment of the present invention, the apparatus for manufacturing the heating structure further includes a lifting drive mechanism, which is connected to the bracket and the drive end of the lifting drive mechanism is connected to the high-temperature injection equipment. The lifting drive mechanism is used to drive the high-temperature injection equipment to move up and down along the direction of gravity.

[0017] In an embodiment of the present invention, the pipe wall, the carrier, and the first cover plate connected between the pipe wall and the carrier constitute a semi-formed structure, and the molding die and the high-temperature injection equipment are used to integrally form the semi-formed structure;

[0018] The device for manufacturing the heating structure also includes a fixing mechanism and a high-temperature spray gun. The fixing mechanism is provided with a fixing shaft for fixing the semi-formed structure, and the high-temperature spray gun is used to melt and connect the second cover plate to the pipe wall and the carrier to form the heating structure.

[0019] In an embodiment of the present invention, a heating channel is provided in the above-mentioned carrier body, and the fixed shaft is inserted into the heating channel;

[0020] The device for manufacturing the heating structure includes a first rotary drive mechanism that drives the fixed shaft and the semi-formed structure to rotate synchronously; when the first rotary drive mechanism drives the fixed shaft and the semi-formed structure to rotate synchronously, the high-temperature spray gun heats the contact area between the pipe wall and the second cover plate and the contact area between the carrier and the second cover plate.

[0021] Alternatively, the apparatus for manufacturing the heating structure includes a second rotary drive mechanism that drives the high-temperature spray gun to move in a circular motion around the semi-formed structure; when the second rotary drive mechanism drives the high-temperature spray gun to move in a circular motion, the high-temperature spray gun heats the contact area between the pipe wall and the second cover plate and the contact area between the carrier and the second cover plate.

[0022] In an embodiment of the present invention, the outer wall of the above-mentioned carrier is wound with a carbon fiber heating element, which is located in the sealed cavity; the apparatus for manufacturing the heating structure includes a vacuum pumping device for evacuating the sealed cavity, or the apparatus for manufacturing the heating structure includes a gas filling device for filling the sealed cavity with a protective gas to prevent oxidation of the carbon fiber heating element.

[0023] This application also relates to a method for manufacturing a heating structure, the method utilizing the aforementioned apparatus for manufacturing a heating structure, the method comprising:

[0024] The positioning part is used to fix the carrier inside the molding die;

[0025] The molten hot melt material is injected into the casting cavity through the injection head using the high-temperature injection equipment. The material is cooled to form the pipe wall and the first cover plate connected to the pipe wall and the carrier. The pipe wall, the carrier and the first cover plate constitute a semi-formed structure.

[0026] After the semi-molded structure is removed from the molding die, it is fixed in place.

[0027] Prepare the second cover plate and cover the pipe wall and the end of the carrier away from the first cover plate with the second cover plate;

[0028] The high-temperature spray gun is used to connect the second cover plate to the pipe wall and the carrier to form the heating structure.

[0029] In an embodiment of the present invention, before fixing the semi-formed structure, the carbon fiber heating element is wound around the carrier; after the heating structure is formed, the sealing cavity is evacuated or a protective gas is filled into the sealing cavity.

[0030] This application also relates to a heating structure, which is formed by the above-described method for manufacturing heating structures.

[0031] This application also relates to a non-combustible smoking device, including a heating structure manufactured by the aforementioned heating structure manufacturing device.

[0032] The heating structure manufacturing device of the present invention can integrally form a semi-molded structure. Then, the semi-molded structure is assembled with the carbon fiber heating element and the second cover plate to form a heating structure. The product has good consistency, high yield, and can be automated for production, resulting in high production efficiency and low manufacturing cost. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the heating structure manufacturing device of this application for manufacturing a semi-finished structure.

[0034] Figure 2 yes Figure 1 A cross-sectional view of the apparatus for manufacturing the heating structure along the first direction.

[0035] Figure 3 yes Figure 1 A cross-sectional view of the apparatus for manufacturing the heating structure along the second direction.

[0036] Figure 4 This is a three-dimensional structural diagram of the heating structure manufacturing device of this application, which manufactures a semi-finished structure into a heating structure.

[0037] Figure 5 This is a cross-sectional schematic diagram of the heating structure of this application.

[0038] Figure 6 This is a three-dimensional structural diagram of the semi-finished structure of this application.

[0039] Figure 7 yes Figure 6 The diagram shows a cross-sectional view of the semi-finished structure.

[0040] Figure 8 This is a cross-sectional structural diagram of the non-combustible smoking device according to the first embodiment of this application.

[0041] Figure 9 This is a cross-sectional structural diagram of the non-combustible smoking device according to the second embodiment of this application.

[0042] Figure 10 This is a cross-sectional structural diagram of the non-combustible smoking device according to the third embodiment of this application. Detailed Implementation

[0043] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0044] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may also be used, and changes in mechanical composition, structure, electrical and operational aspects may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the terminology used herein is for describing particular embodiments only and is not intended to limit the present application.

[0045] Although the terms first, second, etc., are used in some instances to describe various elements herein, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0046] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of a feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0047] Figure 1 This is a three-dimensional structural diagram of the heating structure manufacturing device of this application for manufacturing a semi-finished structure. Figure 2 yes Figure 1 A schematic cross-sectional view of the apparatus for manufacturing the heating structure along the first direction. Figure 3 yes Figure 1 A schematic cross-sectional view of the apparatus for manufacturing the heating structure along the second direction. Figure 4 This is a three-dimensional structural diagram of the heating structure manufacturing device of this application, which manufactures a semi-finished structure into a heating structure. Figure 5 This is a cross-sectional schematic diagram of the heating structure of this application. Figure 6 This is a three-dimensional structural diagram of the semi-finished structure of this application. Figure 7 yes Figure 6 Please refer to the cross-sectional view of the semi-finished structure shown. Figures 1 to 7The heating structure fabrication device is used to fabricate the heating structure 12. The heating structure 12 includes an outer tube 121 and a carrier 122 at least partially disposed in the outer tube 121. A sealed cavity 103 is formed between the outer tube 121 and the carrier 122. The outer tube 121 includes a tube wall 1211 and a first cover plate 1212 and a second cover plate 1213 connected to opposite ends of the tube wall 1211. The first cover plate 1212 and the second cover plate 1213 are connected to the outer wall of the carrier 122. The apparatus for manufacturing the heating structure includes a molding mold 20 and a high-temperature injection device 30. The molding mold 20 is provided with a pouring cavity 201 and a positioning part for fixing the support body 122. The pouring cavity 201 has an annular opening 202 corresponding to the positioning part. The molding mold 20 is provided with an injection port 203 communicating with the pouring cavity 201. The pouring cavity 201 is used to pour and form the pipe wall 1211 and the first cover plate 1212, and the first cover plate 1212 is connected to the support body 122 at the annular opening 202. The high-temperature injection device 30 includes a heating module 31 for heating the hot melt material to a molten state and an injection head 32 that is connected to the injection port 203.

[0048] The molding die 20 of this application is used in conjunction with the high-temperature injection equipment 30 to integrally mold a semi-molded structure. The semi-molded structure consists of a pipe wall 1211, a support body 122, and a first cover plate 1212 connecting the pipe wall 1211 and the support body 122. The process of manufacturing the semi-molded structure is as follows: First, the support body 122 is fixed in the molding die 20 using a positioning part; then, the molten hot melt material is injected into the casting cavity 201 through the injection head 32 using the high-temperature injection equipment 30, and cooled to form the pipe wall 1211 and the first cover plate 1212 connecting the pipe wall 1211 and the support body 122. The pipe wall 1211, the support body 122, and the first cover plate 1212 constitute the semi-molded structure. Figure 6 and Figure 7 As shown; then, a carbon fiber heating element 123 is wound around the outer wall of the carrier 122 and electrode pins are set. Next, the second cover plate 1213 is covered on the end of the tube wall 1211 and the carrier 122. The second cover plate 1213 is connected to the tube wall 1211 and the carrier 122 using a heating device. Finally, the sealed cavity 103 is evacuated (vacuum means a gaseous state below one atmosphere in a given space, that is, a rarefied gas space with a pressure of less than 101.325 kPa in a given space) or filled with a protective gas, such as nitrogen or argon, but not limited to these.

[0049] The heating structure manufacturing device of this application can integrally form a semi-molded structure. Then, the semi-molded structure is assembled with the carbon fiber heating element 123 and the second cover plate 1213 to form the heating structure 12. The product has good consistency, high yield, and can be automated for production, resulting in high production efficiency and low manufacturing cost.

[0050] Optionally, the hot-melt material may be a transparent quartz material, such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, but is not limited thereto.

[0051] Optionally, the carrier 122 is tubular; the material of the carrier 122 is one of aluminum nitride (melting point 2200℃), a mixture of ceramic and metal, a semiconductor thermally conductive material, a metal material coated with an insulating layer, glass coated with a thermally conductive layer, and quartz material.

[0052] Optionally, such as Figure 3 As shown, the positioning part includes a positioning hole 204 disposed at the end of the molding die 20 and a positioning groove 205 disposed inside the molding die 20. The positioning groove 205 is disposed opposite to the positioning hole 204, and the annular opening 202 is disposed corresponding to the positioning hole 204. When the positioning part fixes the carrier 122, one end of the carrier 122 is fixed in the positioning hole 204, and the other end of the carrier 122 is fixed in the positioning groove 205.

[0053] Optionally, the molding die 20 includes an outer mold 21 and an inner mold 22. The inner mold 22 is disposed within the outer mold 21, and a casting cavity 201 is formed between the inner wall of the outer mold 21 and the outer wall of the inner mold 22. A positioning hole 204 penetrates the ends of the outer mold 21 and the inner mold 22, and a positioning groove 205 is disposed on the inner wall of the inner mold 22. In this embodiment, both the outer mold 21 and the inner mold 22 are cylindrical, and the inner diameter of the outer mold 21 is larger than the outer diameter of the inner mold 22.

[0054] Optionally, such as Figure 2 and Figure 3 As shown, the outer mold 21 includes a first cylindrical body 211 and a first bottom plate 212. The first cylindrical body 211 has a receiving cavity. One end of the first cylindrical body 211 has an opening for the inner mold 22 to be inserted into the receiving cavity. The other end of the first cylindrical body 211 is connected to the first bottom plate 212. The inner mold 22 includes a second cylindrical body 221, a second bottom plate 222 and a sealing plate 223. One end of the second cylindrical body 221 is connected to the sealing plate 223, and the other end of the second cylindrical body 221 is connected to the second bottom plate 222. The positioning hole 204 passes through the first bottom plate 212 and the second bottom plate 222, and the positioning groove 205 is provided on the sealing plate 223. In this embodiment, the first cylinder 211 and the second cylinder 221 are arranged parallel to each other and opposite to each other. The casting cavity 201 between the inner wall of the first cylinder 211 and the outer wall of the second cylinder 221 is used to form the pipe wall 1211 of the outer tube 121. The first bottom plate 212 and the second bottom plate 222 are arranged parallel to each other and opposite to each other. The casting cavity 201 between the inner wall of the first bottom plate 212 and the outer wall of the second bottom plate 222 is used to form the first cover plate 1212 of the outer tube 121.

[0055] Optionally, such as Figure 3As shown, the outer mold 21 also includes two clearance tubes 213. The two clearance tubes 213 are connected to the first cylinder 211. One end of the two clearance tubes 213 abuts against the outer wall of the second cylinder 221, and the other end of the two clearance tubes 213 is disposed outside the first cylinder 211. The two clearance tubes 213 are used to form through holes for electrode pins to extend on the cast outer tube 121.

[0056] Optionally, such as Figure 3 As shown, the sealing plate 223 is provided with an annular groove 206 in the area outside the second cylinder 221. The annular groove 206 surrounds the second cylinder 221, and the end of the first cylinder 211 away from the first bottom plate 212 is provided in the annular groove 206.

[0057] Optionally, such as Figure 3 As shown, the molding die 20 is also provided with an exhaust hole 207, which is connected to the casting cavity 201. The exhaust hole 207 is used to exhaust the air when hot melt material is poured into the casting cavity 201.

[0058] Optionally, such as Figure 1 and Figure 2 As shown, the high-temperature injection device 30 also includes a feeding module 33, and a heating module 31 is connected to the feeding module 33. The feeding module 33 includes an inner shell 331 and an outer shell 332. The inner shell 331 is disposed in the outer shell 332, and a hot-melt channel 208 is formed between the outer wall of the inner shell 331 and the inner wall of the outer shell 332. The injection head 32 is connected to the outer shell 332 and communicates with the hot-melt channel 208, which is used to contain the hot-melt material. In this embodiment, the heating module 31 can heat the hot-melt material to a molten state, and the temperature of the molten hot-melt material is about 1600°C.

[0059] Optionally, the heating module 31 includes a first heating part 311 and a second heating part 312. The first heating part 311 is installed on the outer wall of the outer shell 332, and the second heating part 312 is installed inside the inner shell 331. The first heating part 311 and the second heating part 312 cooperate with each other to heat the hot melt material in the hot melt channel 208 to a hot melt state.

[0060] Optionally, such as Figure 2 and Figure 3 As shown, the high-temperature injection equipment 30 also includes a regulating valve 34, which is connected to the injection head 32 and is used to regulate the flow rate of the hot melt material.

[0061] Optionally, such as Figure 1 and Figure 2As shown, the high-temperature injection equipment 30 also includes a first feed hopper 35 and a second feed hopper 36. The first feed hopper 35 and the second feed hopper 36 are located on opposite sides of the outer shell 332. One end of the first feed hopper 35 and the second feed hopper 36 is provided with a feed port, and the other end of the first feed hopper 35 and the second feed hopper 36 is connected to the hot melt channel 208.

[0062] Optionally, the apparatus for manufacturing the heating structure further includes a support bracket 40, which includes a support seat 41 connected to a bracket 42 on the support seat 41. The molding die 20 is fixed on the support seat 41, and a high-temperature injection device 30 is mounted on the bracket 42, positioned above the molding die 20. In this embodiment, the support seat 41 is provided with a positioning groove that matches the shape of the molding die 20. For example, the molding die 20 is cylindrical in shape, and the positioning groove is an arc groove.

[0063] Optionally, the device for manufacturing the heating structure also includes a lifting drive mechanism 50, which is connected to the bracket 42. The drive end of the lifting drive mechanism 50 is connected to the high-temperature injection device 30, and the lifting drive mechanism 50 is used to drive the high-temperature injection device 30 to move up and down along the direction of gravity. When the high-temperature injection device 30 needs to dock with the molding die 20, the lifting drive mechanism 50 drives the high-temperature injection device 30 to descend until the injection head 32 is at least partially inserted into the injection port 203; after the high-temperature injection device 30 has finished pouring, the lifting drive mechanism 50 drives the high-temperature injection device 30 to rise, so that the injection head 32 disengages from the injection port 203.

[0064] Optionally, such as Figure 4 As shown, the pipe wall 1211, the carrier 122, and the first cover plate 1212 connecting the pipe wall 1211 and the carrier 122 constitute a semi-formed structure. The molding mold 20 and the high-temperature injection equipment 30 are used to integrally form the semi-formed structure. The device for manufacturing the heating structure also includes a fixing mechanism 60 and a high-temperature spray gun 70. The fixing mechanism 60 is provided with a fixing shaft 61 for fixing the semi-formed structure. The high-temperature spray gun 70 is used to melt and connect the second cover plate 1213 to the pipe wall 1211 and the carrier 122 to form the heating structure 12. In this embodiment, the high-temperature spray gun 70 includes two high-temperature nozzles 71. One high-temperature nozzle 71 is aligned with the contact point between the pipe wall 1211 and the second cover plate 1213, and the other high-temperature nozzle 71 is aligned with the contact point between the carrier 122 and the second cover plate 1213. The high-temperature nozzles 71 generate high temperatures to melt and bond the pipe wall 1211 and the second cover plate 1213, as well as the carrier 122 and the second cover plate 1213.

[0065] Optionally, the carrier 122 is provided with a heating channel 104 (see reference). Figure 8The fixed shaft 61 is inserted into the heating channel 104; the device for manufacturing the heating structure includes a first rotary drive mechanism 80 that drives the fixed shaft 61 and the semi-formed structure to rotate synchronously; when the first rotary drive mechanism 80 drives the fixed shaft 61 and the semi-formed structure to rotate synchronously, the high-temperature spray gun 70 heats the contact area between the pipe wall 1211 and the second cover plate 1213 and the contact area between the carrier 122 and the second cover plate 1213, so that the periphery of the second cover plate 1213 is sealed and connected to the pipe wall 1211 and the carrier 122.

[0066] Optionally, the device for manufacturing the heating structure includes a second rotary drive mechanism (not shown) that drives the high-temperature spray gun 70 to move in a circular motion around the semi-formed structure; when the second rotary drive mechanism drives the high-temperature spray gun 70 to move in a circular motion, the high-temperature spray gun 70 heats the contact area between the pipe wall 1211 and the second cover plate 1213 and the contact area between the carrier 122 and the second cover plate 1213, so that the periphery of the second cover plate 1213 is sealed and connected to the pipe wall 1211 and the carrier 122.

[0067] Optionally, the outer wall of the carrier 122 is wrapped with a carbon fiber heating element 123, which is located in the sealed cavity 103. The apparatus for manufacturing the heating structure includes a vacuum pump (not shown) for evacuating the sealed cavity 103. Alternatively, the apparatus for manufacturing the heating structure includes a gas filling device (not shown) for filling the sealed cavity 103 with a protective gas to prevent oxidation of the carbon fiber heating element 123.

[0068] This application also relates to a method for manufacturing a heating structure, the method utilizing the aforementioned apparatus for manufacturing a heating structure, the method comprising:

[0069] The positioning part is used to fix the carrier 122 inside the molding die 20;

[0070] The molten hot melt material is injected into the casting cavity 201 through the injection head 32 using the high temperature injection equipment 30. After cooling, a pipe wall 1211 and a first cover plate 1212 connected to the pipe wall 1211 and the carrier 122 are formed. The pipe wall 1211, the carrier 122 and the first cover plate 1212 constitute a semi-formed structure.

[0071] After the semi-formed structure is removed from the molding die 20, it is fixed in place;

[0072] Prepare a second cover plate 1213 and cover the pipe wall 1211 and the end of the carrier 122 away from the first cover plate 1212 with the second cover plate 1213;

[0073] The second cover plate 1213 is connected to the pipe wall 1211 and the carrier 122 by the high-temperature spray gun 70 to form a heating structure 12.

[0074] Optionally, before fixing the semi-formed structure, the carbon fiber heating element 123 and the electrode pins are wound around the carrier 122, and the electrode pins are made to pass through the through hole on the outer tube 121; after the heating structure 12 is formed, the sealing cavity 103 is evacuated, or a protective gas is filled into the sealing cavity 103.

[0075] This application also relates to a heating structure 12, which is formed by the above-described method for manufacturing heating structures.

[0076] Figure 8 This is a cross-sectional structural schematic diagram of the non-combustible smoking device according to the first embodiment of this application, as shown below. Figure 8 As shown, the non-combustible smoking device includes a housing 11 and the aforementioned heating structure 12. The heating structure 12 is installed in the housing 11, and the housing 11 has an opening 101 for inserting an atomizable material into the heating structure 12. The heating channel 104 of the carrier 122 is correspondingly arranged with the opening 101. When a portion of the atomizable material is inserted into the heating channel 104 through the opening 101, infrared waves generated by the carbon fiber heating element 123 radiate onto the atomizable material. The carrier 122 and the infrared waves simultaneously heat the atomizable material to a temperature of 300℃ to 400℃. In this embodiment, the atomizable material is, for example, tobacco material, herbal material, or other materials that can be heated to produce aerosols; the protective gas is, for example, nitrogen or argon, but is not limited thereto.

[0077] The non-combustible smoking device of this application relies on a carbon fiber heating element 123 to heat the atomizable material. The electrothermal conversion rate of the carbon fiber heating element 123 is as high as 98% or more, and it has the advantages of rapid heating, low energy consumption, high temperature resistance, oxidation resistance, and long service life. Moreover, the carbon fiber heating element 123 is located in a vacuum chamber or a sealed chamber 103 with a protective gas, which can effectively prevent the carbon fiber heating element 123 from oxidizing, thus increasing its service life. In addition, the non-combustible smoking device of this application has a simple structure, low manufacturing cost, and long service life, which better meets user needs.

[0078] Optionally, the inner diameter of the outer tube 121 is larger than the outer diameter of the support body 122; the outer tube 121 and / or the support body 122 are round or square tubes, which can be freely selected according to actual needs.

[0079] Optionally, the non-combustible smoke appliance further includes a first heat insulation pad 13 and a second heat insulation pad 14. The first heat insulation pad 13 and the second heat insulation pad 14 are disposed inside the housing 11. The first heat insulation pad 13 is located at the top of the housing 11, and the second heat insulation pad 14 is located at the bottom of the housing 11. The first cover plate 1212 is in contact with the first heat insulation pad 13, and the second sealing plate 11213 is in contact with the second heat insulation pad 14. In this embodiment, the first heat insulation pad 13 and / or the second heat insulation pad 14 are rubber pads used to insulate heat.

[0080] Optionally, the opening 101 is provided at the top of the housing 11, and the bottom of the housing 11 is provided with an air inlet 102. The air inlet 102 is correspondingly provided with the heating channel 104, and air can enter the heating channel 104 through the air inlet 102.

[0081] Optionally, the non-combustible smoke appliance also includes a power supply assembly 15, which is installed inside the housing 11, and the carbon fiber heating element 123 is electrically connected to the power supply assembly 15 via electrode pins (not shown).

[0082] Optionally, the outer tube 121 has a through hole (not shown) in its wall, and the electrode pins extend out of the outer tube 121 through the through hole. The heating structure 12 also includes a sealing body (not shown) that seals the through hole, and the sealing body fills the through hole. In this embodiment, the sealing body is, for example, a quartz tube, a high-silica glass tube, or a glass tube, but is not limited thereto.

[0083] Optionally, the power supply assembly 15 includes a battery 151 and a circuit board 152. The circuit board 152 separates the battery from the outer tube 121. One side of the circuit board 152 is electrically connected to the battery 151, and the other side of the circuit board 152 is electrically connected to the electrode pins.

[0084] Optionally, both the outer tube 121 and the carrier 122 are transparent tubes, such as quartz tubes, high silica glass tubes, or glass tubes, but are not limited thereto.

[0085] Optionally, the housing 11 can be a metal housing or a plastic housing.

[0086] Figure 9 This is a cross-sectional view of the non-combustible smoking device according to the second embodiment of this application, as shown below. Figure 9 As shown, the non-combustible smoke hood in this embodiment has a structure that is largely the same as that in the first embodiment, except that the heating structure 12 further includes a reflective layer 126, which covers the outer wall of the outer tube 121. In this embodiment, the reflective layer 126 is, for example, a silver layer, an aluminum layer, or a mixture coating; the reflective layer 126 is used to reflect infrared waves onto the atomizable material, thereby improving the heating efficiency of the atomizable material.

[0087] Figure 10 This is a cross-sectional structural schematic diagram of the non-combustible smoking device according to the third embodiment of this application, as shown below. Figure 10 As shown, the non-combustible smoke appliance of this embodiment has a structure that is roughly the same as that of the non-combustible smoke appliance of the first embodiment. The difference is that the non-combustible smoke appliance also includes a heat insulation pipe 16 and heat insulation cotton 17.

[0088] Optionally, such as Figure 10As shown, the heat insulation pipe 16 is installed inside the housing 11, and the outer pipe 121 and the carrier 122 are both disposed within the heat insulation pipe 16. The heat insulation cotton 17 is disposed between the inner wall of the heat insulation pipe 16 and the outer wall of the outer pipe 121. In this embodiment, the heat insulation cotton 17, the first heat insulation pad 13, and the second heat insulation pad 14 can both insulate heat and buffer external stress, effectively protecting components such as the outer pipe 121, the carrier 122, the first cover plate 1212, and the second sealing plate 11213.

[0089] Optionally, the insulation cotton 17 may be at least one of aerogel, glass wool, silicone aluminum wool, and rock wool, but is not limited to this.

[0090] Optionally, the insulation pipe 16 is, for example, a stainless steel pipe; the inner diameter of the insulation pipe 16 is larger than the outer diameter of the outer pipe 121.

[0091] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. An apparatus for manufacturing a heating structure, used to manufacture a heating structure, the heating structure comprising an outer tube and a carrier at least partially disposed within the outer tube, a sealed cavity forming between the outer tube and the carrier, the outer tube comprising a tube wall and a first cover plate and a second cover plate connected to opposite ends of the tube wall, the first cover plate and the second cover plate being connected to the outer wall of the carrier, characterized in that, The device includes a molding die and a high-temperature injection equipment. The molding die has a casting cavity and a positioning part for fixing the carrier. The casting cavity has an annular opening corresponding to the positioning part. The molding die has an injection port communicating with the casting cavity. The casting cavity is used to cast and form the pipe wall and the first cover plate. The first cover plate is connected to the carrier at the annular opening. The high-temperature injection equipment includes a heating module for heating the hot-melt material to a molten state and an injection head that is connected to the injection port.

2. The apparatus for manufacturing the heating structure as described in claim 1, characterized in that, The positioning part includes a positioning hole disposed at the end of the molding die and a positioning groove disposed inside the molding die. The positioning groove is disposed opposite to the positioning hole, and the annular opening is disposed corresponding to the positioning hole. When the positioning part fixes the carrier, one end of the carrier is fixed in the positioning hole and the other end of the carrier is fixed in the positioning groove.

3. The apparatus for manufacturing the heating structure as described in claim 2, characterized in that, The molding die includes an outer mold and an inner mold. The inner mold is disposed in the outer mold. The casting cavity is formed between the inner wall of the outer mold and the outer wall of the inner mold. The positioning hole penetrates the outer mold and the inner mold. The positioning groove is disposed on the inner wall of the inner mold.

4. The apparatus for manufacturing the heating structure as described in claim 3, characterized in that, The outer mold includes a first cylindrical body and a first bottom plate. The first cylindrical body has a receiving cavity. One end of the first cylindrical body has an opening for the inner mold to be inserted into the receiving cavity. The other end of the first cylindrical body is connected to the first bottom plate. The inner mold includes a second cylindrical body, a second bottom plate, and a sealing plate. One end of the second cylindrical body is connected to the sealing plate, and the other end of the second cylindrical body is connected to the second bottom plate. The positioning hole penetrates the first bottom plate and the second bottom plate, and the positioning groove is disposed on the sealing plate.

5. The apparatus for manufacturing the heating structure as described in claim 4, characterized in that, The outer mold also includes two clearance tubes, which are connected to the first cylinder. One end of each clearance tube abuts against the outer wall of the second cylinder, and the other end of each clearance tube is disposed outside the first cylinder. The clearance tubes are used to form through holes for electrode pins to extend from the cast outer tube.

6. The apparatus for manufacturing the heating structure as described in claim 4, characterized in that, The sealing plate has an annular groove in the area outside the second cylinder, the annular groove surrounds the second cylinder, and the end of the first cylinder away from the first bottom plate is located in the annular groove.

7. The apparatus for manufacturing the heating structure as described in claim 1, characterized in that, The molding die is also provided with an exhaust hole, which is connected to the casting cavity. The exhaust hole is used to release air when the hot melt material is poured into the casting cavity.

8. The apparatus for manufacturing a heating structure as described in any one of claims 1 to 7, characterized in that, The high-temperature injection equipment also includes a feeding module, and the heating module is connected to the feeding module. The feeding module includes an inner shell and an outer shell. The inner shell is disposed in the outer shell. A hot melt channel is formed between the outer wall of the inner shell and the inner wall of the outer shell. The injection head is connected to the outer shell and communicates with the hot melt channel. The hot melt channel is used to accommodate the hot melt material.

9. The apparatus for manufacturing a heating structure as described in claim 8, characterized in that, The high-temperature injection equipment also includes a regulating valve connected to the injection head, which is used to regulate the flow rate of the hot melt material.

10. The apparatus for manufacturing the heating structure as described in claim 8, characterized in that, The high-temperature injection equipment also includes a first feed hopper and a second feed hopper. The first feed hopper and the second feed hopper are disposed on opposite sides of the outer shell. One end of the first feed hopper and the second feed hopper is provided with a feed port, and the other end of the first feed hopper and the second feed hopper are connected to the hot melt channel.

11. The apparatus for manufacturing a heating structure as described in any one of claims 1 to 7, characterized in that, The device for manufacturing the heating structure also includes a support bracket, which includes a support seat connected to the support seat, a molding die fixed on the support seat, and a high-temperature injection device installed on the support bracket, with the high-temperature injection device located above the molding die.

12. The apparatus for manufacturing a heating structure as described in claim 11, characterized in that, The device for manufacturing the heating structure also includes a lifting drive mechanism, which is connected to the bracket. The drive end of the lifting drive mechanism is connected to the high-temperature injection equipment, and the lifting drive mechanism is used to drive the high-temperature injection equipment to move up and down along the direction of gravity.

13. The apparatus for manufacturing a heating structure as described in any one of claims 1 to 7, characterized in that, The pipe wall, the carrier, and the first cover plate connected between the pipe wall and the carrier constitute a semi-formed structure. The molding die and the high-temperature injection equipment are used to integrally form the semi-formed structure. The device for manufacturing the heating structure also includes a fixing mechanism and a high-temperature spray gun. The fixing mechanism is provided with a fixing shaft for fixing the semi-formed structure, and the high-temperature spray gun is used to melt and connect the second cover plate to the pipe wall and the carrier to form the heating structure.

14. The apparatus for manufacturing a heating structure as described in claim 13, characterized in that, The carrier body is provided with a heating channel, and the fixed shaft is inserted into the heating channel; The device for manufacturing the heating structure includes a first rotary drive mechanism that drives the fixed shaft and the semi-formed structure to rotate synchronously; when the first rotary drive mechanism drives the fixed shaft and the semi-formed structure to rotate synchronously, the high-temperature spray gun heats the contact area between the pipe wall and the second cover plate and the contact area between the carrier and the second cover plate. Alternatively, the device for manufacturing the heating structure may include a second rotary drive mechanism that drives the high-temperature spray gun to move in a circular motion around the semi-formed structure. When the second rotary drive mechanism drives the high-temperature spray gun to make a circular motion, the high-temperature spray gun heats the contact area between the pipe wall and the second cover plate and the contact area between the carrier and the second cover plate.

15. The apparatus for manufacturing a heating structure as described in claim 13, characterized in that, The outer wall of the carrier is wrapped with a carbon fiber heating element, which is located in the sealed cavity. The device for manufacturing the heating structure includes a vacuum pump, which is used to evacuate the sealed cavity. Alternatively, the device for manufacturing the heating structure includes a gas filling device, which is used to fill the sealed cavity with a protective gas to prevent oxidation of the carbon fiber heating element.

16. A method for manufacturing a heating structure, characterized in that, The manufacturing method utilizes the apparatus for manufacturing the heating structure according to claim 15, and the manufacturing method includes: The positioning part is used to fix the carrier inside the molding die; The molten hot melt material is injected into the casting cavity through the injection head using the high-temperature injection equipment. The material is cooled to form the pipe wall and the first cover plate connected to the pipe wall and the carrier. The pipe wall, the carrier and the first cover plate constitute a semi-formed structure. After the semi-molded structure is removed from the molding die, it is fixed in place. Prepare the second cover plate and cover the pipe wall and the end of the carrier away from the first cover plate with the second cover plate; The high-temperature spray gun is used to connect the second cover plate to the pipe wall and the carrier to form the heating structure.

17. The method for manufacturing the heating structure as described in claim 16, characterized in that, Before fixing the semi-formed structure, the carbon fiber heating element is wound around the carrier; after the heating structure is formed, the sealing cavity is evacuated or filled with protective gas.

18. A heating structure, characterized in that, The heating structure is manufactured using the method described in any one of claims 16 to 17.

19. A non-combustible smoking device, characterized in that, The heating structure includes the heating structure manufactured by the apparatus described in any one of claims 1 to 15.

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