WO2023221871A1 - 一种适用于磁粒均热烟具的感应线圈装置及其制备方法 - Google Patents
一种适用于磁粒均热烟具的感应线圈装置及其制备方法 Download PDFInfo
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- WO2023221871A1 WO2023221871A1 PCT/CN2023/093624 CN2023093624W WO2023221871A1 WO 2023221871 A1 WO2023221871 A1 WO 2023221871A1 CN 2023093624 W CN2023093624 W CN 2023093624W WO 2023221871 A1 WO2023221871 A1 WO 2023221871A1
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- Prior art keywords
- induction coil
- electromagnetic shielding
- outer shell
- coil device
- shell
- Prior art date
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- 230000006698 induction Effects 0.000 title claims abstract description 82
- 239000006249 magnetic particle Substances 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 title claims abstract description 20
- 230000000391 smoking effect Effects 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000010410 layer Substances 0.000 claims abstract description 51
- 238000009413 insulation Methods 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 239000012774 insulation material Substances 0.000 claims abstract description 31
- 239000011229 interlayer Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 17
- 235000019504 cigarettes Nutrition 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 238000009713 electroplating Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000004964 aerogel Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 8
- 230000001939 inductive effect Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000011231 conductive filler Substances 0.000 description 6
- 230000005672 electromagnetic field Effects 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
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- -1 etc. Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
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- 239000002952 polymeric resin Substances 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
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- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- 229920012266 Poly(ether sulfone) PES Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
- A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
Definitions
- the present invention relates to the technical field of tobacco product heating smoking sets, and in particular to an induction coil device suitable for magnetic particle heating smoking sets and a preparation method thereof.
- Magnetic particle heat equalizing cigarettes use electromagnetic induction heating technology to generate an alternating electromagnetic field through an induction coil.
- the ferromagnetic element inserted into the heated cigarette is placed in the alternating electromagnetic field to generate heat and release the material in the cigarette for smoking.
- electromagnetic induction heating process because the induction coil produces electromagnetic wave radiation and self-heating, it is necessary to design electromagnetic shielding and heat insulation devices.
- Most electromagnetic shielding and thermal insulation devices use discrete modules for corresponding processing. Although they can meet certain design requirements, there are problems such as unsatisfactory electromagnetic shielding effects and low thermal insulation efficiency.
- the purpose of the present invention is to overcome the shortcomings of the prior art and provide an induction coil device suitable for magnetic particle heat equalizing smoking articles and a preparation method thereof, so as to integrate electromagnetic shielding and heat insulation properties, and innovatively develop an induction coil device with both electromagnetic and thermal insulation properties.
- the induction coil device has shielding and heat insulation properties, thereby achieving a better shielding effect on electromagnetic wave radiation, greatly isolating the heat of the induction coil itself, and achieving the purpose of reducing the eddy current loss of the induction coil and reducing the temperature of the cigarette shell.
- An induction coil device suitable for magnetic particle heat equalizing smoking articles including a device shell with a hole inside, the device shell has a double-layer shell structure, a vacuum sandwich is formed between the inner and outer shells, the induction coil, heat insulation
- the material layer and the electromagnetic shielding coating are arranged in the vacuum interlayer.
- the induction coil is wound around the outer wall of the inner shell.
- the thermal insulation material layer is wrapped around the induction coil.
- the electromagnetic shielding coating is arranged on the inner wall of the outer shell. , and the vacuum gap between the electromagnetic shielding coating and the thermal insulation material layer forms a vacuum thermal insulation sandwich.
- the two ends of the induction coil are respectively provided with terminal conductive contacts, and the two terminal conductive contacts are led out from the outer shell.
- the middle section of the induction coil is provided with at least one middle conductive contact, and each middle conductive contact is led out from the outer shell.
- the material of the outer shell is one of metal electromagnetic shielding material, surface conductive electromagnetic shielding material or filled composite electromagnetic shielding material.
- the inner shell is made of an insulating material.
- the electromagnetic shielding coating is formed by coating the inner wall of the outer shell with conductive paint.
- the heat insulation material layer is composed of a base body and an electroplating layer.
- the base body is made of one or more of glass fiber, aerogel, foam, and fiber cloth.
- the electroplating layer is made of a mixture of glass fiber, aerogel, foam, and fiber cloth. It is formed by electroplating metal and conductive materials on the surface.
- the present invention also provides a method for preparing an induction coil device suitable for magnetic particle heat equalizing smoking articles.
- the induction coil device is the above-mentioned induction coil device.
- the preparation method of the induction coil device is carried out in sequence as follows:
- Step 1 Use heat insulation materials to prepare heat insulation sheets, wrap the heat insulation sheets around the periphery of the induction coil and seal to form a circular ring-shaped heat insulation material layer;
- Step 2 Grind the insulating material into powder, add a binder and a water-based additive, mix and stir to form an insulating slurry, inject the insulating slurry into the inner shell mold and perform high-temperature sintering to prepare the inner layer.
- Step 3 Use electromagnetic shielding material to prepare the outer shell so that the outer shell has an electromagnetic shielding function
- Step 4 Coating the inner wall of the outer shell with an electromagnetic shielding material to form the electromagnetic shielding coating
- Step 4 Set the induction coil around the inner shell, and then set the outer shell around the heat insulation material layer. There should be no contact between the electromagnetic shielding coating on the inner layer of the outer shell and the heat insulation material layer. , then the upper and lower ends of the inner shell and the outer shell are sealed to form a whole, and the annular cavity between the inner shell and the outer shell is evacuated, so that the space between the inner and outer shells Form a vacuum sandwich.
- the two ends of the induction coil are respectively provided with terminal conductive contacts, and the middle section of the induction coil is provided with at least one middle conductive contact.
- the terminal conductive contacts and the middle conductive contacts are respectively provided from the outside. Lead it out from the lead-out hole reserved on the outer shell, and insulate and seal the gap between the lead-out hole of the outer shell and the corresponding conductive contact.
- the present invention has the following advantages:
- the invention provides an induction coil device suitable for magnetic particle heat-dividing smoking articles, which effectively integrates the heat insulation material layer and the electromagnetic shielding coating, so that the device has both electromagnetic shielding performance and heat insulation. performance, greatly improving the electromagnetic shielding effect and heat insulation effect of the induction coil device.
- the shell of the device adopts a double-layer shell structure.
- the vacuum gap between the electromagnetic shielding coating and the heat insulation material layer also forms a vacuum heat insulation sandwich, further strengthening the heat insulation. performance, effectively preventing heat leakage loss and greatly improving the heating efficiency of cigarettes.
- the present invention provides a method for preparing an induction coil device suitable for magnetic particle heat equalizing smoking articles.
- the method is simple and easy to operate, efficient and low-cost; and has a high production yield and low loss.
- the induction coil device prepared by this method has the following advantages:
- the prepared induction coil device has an integrated structure, which has the functions of heat insulation and electromagnetic shielding. At the same time, it adopts double electromagnetic shielding form, which greatly improves the electromagnetic shielding efficiency;
- the vacuum sandwich constructed by the prepared induction coil device effectively reduces the energy loss of the induction coil's self-heating. And greatly blocks the heat transmitted to the outside of the device shell, reducing the temperature of the surface of the magnetic particle heat equalizing smoking device body shell;
- the prepared induction coil device has the function of adjusting the inductance value. Through the multiple conductive contacts, it can be conveniently and selectively connected to the electromagnetic oscillation circuit to match the design of heating smoking articles with different electromagnetic oscillation frequencies.
- Figure 1 is a cross-sectional view of the present invention in use.
- this embodiment provides an induction coil device suitable for magnetic particle heat equalizing smoking articles, including a device shell with a hole inside.
- the device shell has a double-layer shell structure, and a vacuum sandwich is formed between the inner and outer shells.
- the induction coil 1, the thermal insulation material layer 2 and the electromagnetic shielding coating 3 are arranged in a vacuum interlayer, the induction coil 1 is wound around the outer wall of the inner shell 4, and the thermal insulation material layer 2 is wrapped around the induction coil 1
- the electromagnetic shielding coating 3 is provided on the inner wall of the outer shell 5 , and the vacuum gap between the electromagnetic shielding coating 3 and the heat insulation material layer 2 forms a vacuum heat insulation interlayer 6 .
- the two ends of the induction coil 1 are respectively provided with terminal conductive contacts 7 , and the two terminal conductive contacts 7 are led out from the outer shell 5 .
- the induction coil 1 is provided with at least one middle conductive contact 8 in the middle section, and each middle conductive contact 8 is led out from the outer shell 5 . Any two different conductive contacts can be selected to connect to the electromagnetic oscillation circuit according to needs, so that different numbers of coil turns can be selected according to needs to form inductances of different values and generate alternating current signals with different resonant frequencies.
- the wire diameter, winding distance, number of turns and inductance value of induction coil 1 satisfy the following relationship: 0.5mm ⁇ wire diameter ⁇ 2.5mm, 0.05mm ⁇ winding distance ⁇ 0.5mm, 6 ⁇ number of turns ⁇ 14, 0.1uH ⁇ inductance value ⁇ 35uH.
- the outer shell 5 is made of one of metal electromagnetic shielding materials, surface conductive electromagnetic shielding materials or filled composite electromagnetic shielding materials.
- the outer shell 5 is made of electromagnetic shielding material, which can be used as a hard support for the device shell, and together with the electromagnetic shielding coating 3 on the inside, it can have a double electromagnetic shielding effect.
- the material of the inner shell 4 is an insulating material, and can be made of any one of glass, ceramics, and plastic or a mixture of any two.
- the inner shell 4 is made of insulating material, which can insulate the induction coil 1, prevent damage to the insulation wrapping layer of the induction coil 1 and leakage of electricity, thereby eliminating potential safety hazards.
- the electromagnetic shielding coating 3 is formed by coating the inner wall of the outer shell 5 with conductive paint.
- the thermal insulation material layer 2 is composed of a base body and an electroplating layer.
- the base body is made of one or more mixtures of glass fiber, aerogel, foam, and fiber cloth.
- the electroplating layer is formed by electroplating metal and conductive materials on the surface of the base body. .
- This embodiment also discloses a method for preparing an induction coil device suitable for magnetic particle heat equalizing smoking articles.
- the preparation method of the induction coil device is carried out in sequence as follows:
- Step 1 Use heat insulation materials to prepare heat insulation sheets.
- the specific process is: select one or more mixtures of glass fiber, aerogel, foam, and fiber cloth, and use organic-inorganic hybrid methods to prepare insulation sheets.
- the thermal insulation gel is freeze-dried to freeze the liquid in the holes of the thermal insulation gel, and then sublimates it under vacuum conditions to prepare the matrix of the thermal insulation sheet; it can also be used as needed , electroplating metal and conductive materials on the base surface of the heat insulation sheet to form the electroplating layer of the heat insulation sheet, the base body and the electroplating layer together form the heat insulation sheet; wrap the heat insulation sheet around the periphery of the induction coil 1 and seal it to form a ring shaped heat insulation material layer 2;
- Step 2 Grind the insulating material into powder, add a binder and a water-based additive, mix and stir to form an insulating slurry, inject the insulating slurry into the mold of the inner shell 4 and perform high-temperature sintering to prepare the inner shell.
- Body 4 the specific process is: select any one or a mixture of any two of glass, ceramics, and plastics, grind them into nano-level fine powder, add binders and water-based additives, mix and stir, and then inject them into the inner shell. 4 is formed in a mold and sintered at high temperature to obtain the inner shell 4;
- Step 3 Use electromagnetic shielding material to prepare the outer shell 5 so that the outer shell 5 has an electromagnetic shielding function
- Step 4 Coat the inner wall of the outer shell 5 with an electromagnetic shielding material to form an electromagnetic shielding coating 3; the specific process is: applying the conductive paint through one of spraying, chemical plating, deposition, and screen printing processes or a mixed process. Cover the inner wall of the outer shell 5 to form an electromagnetic shielding coating 3 with a thickness of 25 to 300um;
- Step 4 Set the induction coil 1 on the periphery of the inner shell 4, and then set the outer shell 5 on the periphery of the heat insulation material layer 2, and the electromagnetic shielding coating 3 on the inner layer of the outer shell 5 is in contact with the heat insulation layer. There is no contact between the insulation material layers 2, and then the upper and lower ends of the inner shell 4 and the outer shell 5 are sealed to form a whole, and the annular cavity between the inner shell 4 and the outer shell 5 is sealed. Vacuuming process creates a vacuum sandwich between the inner and outer shells.
- the two ends of the induction coil 1 are respectively provided with terminal conductive contacts 7, and the middle section of the induction coil 1 is provided with at least one middle conductive contact 8.
- the terminal conductive contacts 7 and the middle conductive contact 8 are respectively connected from the outer shell 5 Lead it out from the lead-out hole reserved on the outer shell 5, and perform insulation and sealing treatment on the gap between the lead-out hole of the outer shell 5 and the corresponding conductive contact.
- one of the three electromagnetic shielding materials can be used as the material of the outer shell 5 .
- ferromagnetic materials or metal good conductor materials can be selected. Ferromagnetic materials include iron, cobalt, nickel, etc., and metal good conductor materials include silver, copper, aluminum, etc.
- the preparation method is as follows: mixing and grinding metal electromagnetic shielding materials into nanometer-level fine powder, stirring evenly, melting, pouring into a cast iron shell mold, and performing annealing treatment to prepare the outer shell 5.
- the preparation method is: first use any material to make the shell body of the device shell, and use one of spraying, chemical plating, deposition, screen printing or Mixing process outside The surface of the shell body is coated with a thin layer of conductive paint to prepare the outer shell 5 .
- the preparation method is as follows: using a polymer resin as a matrix, adding a certain amount of conductive filler therein, and performing melt blending, solution blending, in-situ polymerization and co-
- the outer shell 5 is prepared by precipitation method.
- polymer resin materials provide the outer shell 5 with processing and molding properties and a certain degree of heat insulation properties.
- Polymer resin materials include: polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), polyethylene One or more synthetic products of propylene (PP), ABS resin, polycarbonate (PC), nylon, polyetheretherketone (PEEK), polyethersulfone (PES).
- Conductive fillers include: one or a mixture of carbon, metal, composite, and polymer fillers.
- Carbon conductive fillers are mainly carbon black, graphene, carbon nanotubes, and carbon fibers;
- metal conductive fillers are mainly One or an alloy of silver, copper, nickel, and aluminum metal;
- the composite conductive filler is mainly one or a mixture of silver-plated glass beads, nickel-plated graphene, nickel-plated carbon fiber, cobalt-plated graphene, and cobalt-plated carbon fiber;
- the polymer-based conductive filler is mainly one or a mixture of polyaniline, polypyrrole, and polythiophene.
- the induction coil device and the inductive heating body 10 cooperate to form a magnetic particle heat equalizing smoking device.
- the base 11 of the inductive heating body 10 is placed on the table, and the induction coil device is placed on the base 11 of the inductive heating body 10.
- the installation boss 12 on the base 11 can be used to cooperate with the hole to limit the position, and the base 11 of the inductive heating body 10 can seal the bottom of the hole in the device shell.
- the inductive heating body 10 cuts the alternating electromagnetic field to generate heat to fully heat the cigarette 9 .
- the outer shell 5 on the side wall of the induction coil device and the electromagnetic shielding coating 3 on the inside of the outer shell 5 can double inhibit the leakage of the electromagnetic field generated by the induction coil 1.
- the heat insulation material layer 2 and the vacuum heat insulation interlayer 6 can play a role. It has double thermal insulation performance and improves heating efficiency.
Abstract
一种适用于磁粒均热烟具的感应线圈装置及其制备方法，该装置包括内设孔道的装置外壳，装置外壳为双层壳体结构，内外两层壳体之间形成真空夹层，感应线圈（1）、隔热保温材料层（2）和电磁屏蔽涂层（3）设置在真空夹层里，感应线圈（1）缠绕设置在内层壳体（4）的外侧壁上，隔热保温材料层（2）包裹在感应线圈（1）外围，电磁屏蔽涂层（3）设置在外层壳体（5）内侧壁上，且电磁屏蔽涂层（3）与隔热保温材料层（2）之间的真空间隙形成真空隔热夹层。该感应线圈装置兼具电磁屏蔽和隔热保温性能，实现对电磁波辐射较好的屏蔽效果，极大程度隔绝感应线圈自身热量，达到降低感应线圈涡流损耗、降低烟具外壳温度的目的。
Description
本发明涉及烟草制品加热烟具技术领域，尤其涉及的是一种适用于磁粒均热烟具的感应线圈装置及其制备方法。
磁粒均热烟具应用电磁感应加热技术，通过感应线圈产生交变的电磁场，插入加热卷烟中的铁磁元件放置在交变电磁场中，产生热量释放加热卷烟中的物质进行吸食。在电磁感应加热过程中，由于感应线圈产生电磁波辐射及自发热现象，需要设计电磁屏蔽和隔热保温装置。大多数电磁屏蔽和隔热保温装置采用分立模块进行相应处理，虽能达到一定的设计要求，但存在电磁屏蔽效果不理想、隔热保温效率低下等问题。
发明内容
本发明的目的在于克服现有技术的不足，提供了一种适用于磁粒均热烟具的感应线圈装置及其制备方法，以融合电磁屏蔽和隔热保温性能，创新性的开发出兼具电磁屏蔽和隔热保温性能的感应线圈装置，从而实现对电磁波辐射较好的屏蔽效果，极大程度隔绝感应线圈自身热量，达到降低感应线圈涡流损耗、降低烟具外壳温度的目的。
本发明是通过以下技术方案实现的：
一种适用于磁粒均热烟具的感应线圈装置，包括内设孔道的装置外壳，所述装置外壳为双层壳体结构，内外两层壳体之间形成真空夹层，感应线圈、隔热保温材料层和电磁屏蔽涂层设置在真空夹层里，感应线圈缠绕设置在内层壳体的外侧壁上，隔热保温材料层包裹在感应线圈外围，电磁屏蔽涂层设置在外层壳体内侧壁上，且电磁屏蔽涂层与隔热保温材料层之间的真空间隙形成真空隔热夹层。
作为上述装置的优选方案，所述感应线圈两端分别设有端极导电触点，两个端极导电触点从外层壳体上引出来。
作为上述装置的优选方案，所述感应线圈中段设有至少一个中段导电触点，各个中段导电触点从外层壳体上引出来。
作为上述装置的优选方案，所述外层壳体的材质为金属电磁屏蔽材料、表面导电性电磁屏蔽材料或填充复合型电磁屏蔽材料中的其中一种。
作为上述装置的优选方案，所述内层壳体的材质为绝缘材质。
作为上述装置的优选方案，所述电磁屏蔽涂层由导电涂料涂覆在外层壳体内侧壁上而形成。
作为上述装置的优选方案，所述隔热保温材料层由基体以及电镀层构成，基体由玻璃纤维、气凝胶、泡沫、纤维布中的一种或多种混合而成，电镀层由在基体表面电镀金属及导电材料而形成。
本发明还提供了一种适用于磁粒均热烟具的感应线圈装置的制备方法，所述感应线圈装置为上述的感应线圈装置，所述感应线圈装置的制备方法按如下步骤依次进行：
步骤一、利用隔热保温材料制备隔热保温片，将隔热保温片包裹在感应线圈外围并封口形成圆环状的隔热保温材料层；
步骤二、将绝缘材料研磨成粉末状，添加粘结剂和水基添加剂经混合搅拌后制成绝缘浆料，将绝缘浆料注入内层壳体模具中并进行高温烧结制得所述内层壳体；
步骤三、利用电磁屏蔽材料制备所述外层壳体，使得外层壳体具备电磁屏蔽功能；
步骤四、在外层壳体内侧壁涂覆电磁屏蔽材料形成所述电磁屏蔽涂层；
步骤四、将感应线圈套装在内层壳体外围，再将外层壳体套装在隔热保温材料层外围，且外层壳体内层的电磁屏蔽涂层与隔热保温材料层之间不接触，然后将内层壳体和外层壳体上下两端封口形成一个整体，并对内层壳体与外层壳体之间的环形空腔进行抽真空处理，使得内外两层壳体之间形成真空夹层。
作为上述制备方法的优选方案，所述感应线圈两端分别设有端极导电触点，所述感应线圈中段设有至少一个中段导电触点，端极导电触点和中段导电触点分别从外层壳体上预留的引出孔中引出来，并对外层壳体的引出孔与相应的导电触点之间的间隙进行绝缘密封处理。
本发明相比现有技术具有以下优点：
1、本发明提供的一种适用于磁粒均热烟具的感应线圈装置，其有效的将隔热保温材料层和电磁屏蔽涂层集成在一起，使得该装置兼具电磁屏蔽性能和隔热保温性能，很大程度的提升了感应线圈装置的电磁屏蔽效果和隔热保温效果。此外，该装置外壳采用双层壳体结构，除了隔热保温材料层以外，其电磁屏蔽涂层与隔热保温材料层之间的真空间隙还形成了真空隔热夹层，进一步加强了隔热保温性能，有效防止了热量外溢损失，大大提高了烟支的加热效率。
2、本发明提供的一种适用于磁粒均热烟具的感应线圈装置的制备方法，该方法简便易操作，高效低成本；且制备良品率高，损耗小。通过该方法制备获得的感应线圈装置，具有如下优势：
首先，所制备的感应线圈装置为一体式结构，兼具隔热保温和电磁屏蔽的作用，同时采用双重电磁屏蔽形式，大幅提升了电磁屏蔽效率；
其次，所制备的感应线圈装置构建的真空夹层，有效降低了感应线圈自发热的能量损耗
及大幅度阻隔传导到装置外壳之外的热量，降低了磁粒均热烟具机身外壳表面的温度；
再次，所制备的感应线圈装置具备可调节电感值的功能，通过引出的多个导电触点，可方便的选择性的接入电磁振荡电路，匹配不同电磁振荡频率加热烟具的设计。
图1是本发明使用状态的剖面图。
图中标号：1感应线圈，2隔热保温材料层，3电磁屏蔽涂层，4内层壳体，5外层壳体，6真空隔热夹层，7端极导电触点，8中段导电触点，9烟支，10电感加热体，11底座，12安装凸台。
下面对本发明的实施例作详细说明，本实施例在以本发明技术方案为前提下进行实施，给出了详细的实施方式和具体的操作过程，但本发明的保护范围不限于下述的实施例。
参见图1，本实施例提供了一种适用于磁粒均热烟具的感应线圈装置，包括内设孔道的装置外壳，装置外壳为双层壳体结构，内外两层壳体之间形成真空夹层，感应线圈1、隔热保温材料层2和电磁屏蔽涂层3设置在真空夹层里，感应线圈1缠绕设置在内层壳体4的外侧壁上，隔热保温材料层2包裹在感应线圈1外围，电磁屏蔽涂层3设置在外层壳体5内侧壁上，且电磁屏蔽涂层3与隔热保温材料层2之间的真空间隙形成真空隔热夹层6。
感应线圈1两端分别设有端极导电触点7，两个端极导电触点7从外层壳体5上引出来。感应线圈1中段设有至少一个中段导电触点8，各个中段导电触点8从外层壳体5上引出来。可根据需要选择不同的任意两个导电触点接入电磁振荡电路，从而可根据需要选择不同的线圈匝数，形成不同数值的电感，产生不同谐振频率的交流电信号。
感应线圈1的线径、缠距、匝数、电感值满足如下关系：0.5mm<线径<2.5mm，0.05mm<缠距<0.5mm，6<匝数<14，0.1uH<电感值<35uH。
外层壳体5的材质为金属电磁屏蔽材料、表面导电性电磁屏蔽材料或填充复合型电磁屏蔽材料中的其中一种。外层壳体5采用电磁屏蔽材料，即可作为装置外壳的硬支撑，又可与其内侧的电磁屏蔽涂层3一起，起到双重电磁屏蔽的效果。
内层壳体4的材质为绝缘材质，可选用玻璃、陶瓷、塑料中的任一种或者任两种混合而成。内层壳体4采用绝缘材质，可对感应线圈1进行绝缘，防止感应线圈1绝缘包裹层损坏漏电，消除了安全隐患。
电磁屏蔽涂层3由导电涂料涂覆在外层壳体5内侧壁上而形成。
隔热保温材料层2由基体以及电镀层构成，基体由玻璃纤维、气凝胶、泡沫、纤维布中的一种或多种混合而成，电镀层由在基体表面电镀金属及导电材料而形成。
本实施例还公开了一种适用于磁粒均热烟具的感应线圈装置的制备方法，感应线圈装置的制备方法按如下步骤依次进行：
步骤一、利用隔热保温材料制备隔热保温片，具体过程为：选取玻璃纤维、气凝胶、泡沫、纤维布中的一种或多种混合，采用有机-无机杂化的方式制备出隔热保温凝胶，并对隔热保温凝胶进行冷冻干燥，从而冷冻隔热保温凝胶孔洞内的液体，进而使其在真空条件下升华从而制得隔热保温片的基体；还可根据需要，在隔热保温片的基体表面电镀金属及导电材料形成隔热保温片的电镀层，基体和电镀层一起形成隔热保温片；将隔热保温片包裹在感应线圈1外围并封口形成圆环状的隔热保温材料层2；
步骤二、将绝缘材料研磨成粉末状，添加粘结剂和水基添加剂经混合搅拌后制成绝缘浆料，将绝缘浆料注入内层壳体4模具中并进行高温烧结制得内层壳体4；具体过程为：选用玻璃、陶瓷、塑料中的任一种或者任两种混合，研磨为纳米级别的细粉，并添加粘结剂、水基添加剂经过混合搅拌后注入内层壳体4模具中成型，并进行高温烧结制得内层壳体4；
步骤三、利用电磁屏蔽材料制备外层壳体5，使得外层壳体5具备电磁屏蔽功能；
步骤四、在外层壳体5内侧壁涂覆电磁屏蔽材料形成电磁屏蔽涂层3；具体过程为：将导电涂料通过喷涂、化学电镀、沉积、丝网印刷工艺中的一种工艺或混合工艺涂覆在外层壳体5内侧壁上，形成厚度为25～300um的电磁屏蔽涂层3；
步骤四、将感应线圈1套装在内层壳体4外围，再将外层壳体5套装在隔热保温材料层2外围，且外层壳体5内层的电磁屏蔽涂层3与隔热保温材料层2之间不接触，然后将内层壳体4和外层壳体5上下两端封口形成一个整体，并对内层壳体4与外层壳体5之间的环形空腔进行抽真空处理，使得内外两层壳体之间形成真空夹层。
其中，感应线圈1两端分别设有端极导电触点7，感应线圈1中段设有至少一个中段导电触点8，端极导电触点7和中段导电触点8分别从外层壳体5上预留的引出孔中引出来，并对外层壳体5的引出孔与相应的导电触点之间的间隙进行绝缘密封处理。
上述制备方法的步骤三中，由于外层壳体5的材质可采用三种电磁屏蔽材料中的其中一种。
当外层壳体5采用金属电磁屏蔽材料时，可选择铁磁材料或金属良导体材料，铁磁材料包括铁、钴、镍等，金属良导体材料包括银、铜、铝等。其制备方法为：通过将金属电磁屏蔽材料混合研磨成纳米级别细粉，搅拌均匀后进行熔炼倒入铸铁外壳模具中并进行退火处理制得外层壳体5。
当外层壳体5采用表面导电性电磁屏蔽材料时，其制备方法为：先采用任意材质制得装置外壳的外壳本体，并采用喷涂、化学电镀、沉积、丝网印刷中的一种工艺或混合工艺在外
壳本体表面涂覆薄薄的一层导电涂料，即制得外层壳体5。
当外层壳体5采用填充复合型电磁屏蔽材料时，其制备方法为：以高分子树脂为基体，向其中加入一定量的导电填料，通过熔融共混、溶液共混、原位聚合和共沉淀法制备形成外层壳体5。
其中，高分子树脂材料提供外层壳体5加工成型性能和一定程度的隔热性能，高分子树脂材料包括：聚乙烯(PE)、聚氯乙烯(PVC)、聚苯乙烯(PS)、聚丙烯(PP)、ABS树脂、聚碳酸酯(PC)、尼龙、聚醚醚酮(PEEK)、聚醚砜(PES)中的一种或多种合成产物。
导电填料包括：碳系、金属系、复合系、高分子系填料中的一种或混合的填料，碳系导电填料主要为炭黑、石墨烯、碳纳米管、碳纤维；金属系导电填料主要为银、铜、镍、铝金属的一种或合金；复合系导电填料主要为镀银玻璃微珠、镀镍石墨烯、镀镍碳纤维、镀钴石墨烯、镀钴碳纤维中的一种或混合物；高分子系导电填料主要为聚苯胺、聚吡咯、聚噻吩中的一种或多种混合。
使用时，该感应线圈装置与电感加热体10配合共同形成磁粒均热烟具，将电感加热体10的底座11置于台面上，将该感应线圈装置放置在电感加热体10的底座11上，并可通过底座11上的安装凸台12与孔道配合限位，通过电感加热体10的底座11对装置外壳的孔道底部封口。加热时，将烟支9从装置外壳的孔道顶部向下插入烟支9，直至电感加热体10本体插入至烟支9内部，选择两个导电触点外接电磁振荡电路，感应线圈1通电产生电磁场，电感加热体10切割交变的电磁场产生热量从而对烟支9进行充分加热。感应线圈装置侧壁的外层壳体5以及外层壳体5内侧的电磁屏蔽涂层3能双重抑制感应线圈1产生的电磁场外泄，隔热保温材料层2和真空隔热夹层6能起到双重的隔热保温性能，提高了加热效率。
以上仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。
Claims (9)
- 一种适用于磁粒均热烟具的感应线圈装置，包括内设孔道的装置外壳，其特征在于：所述装置外壳为双层壳体结构，内外两层壳体之间形成真空夹层，感应线圈、隔热保温材料层和电磁屏蔽涂层设置在真空夹层里，感应线圈缠绕设置在内层壳体的外侧壁上，隔热保温材料层包裹在感应线圈外围，电磁屏蔽涂层设置在外层壳体内侧壁上，且电磁屏蔽涂层与隔热保温材料层之间的真空间隙形成真空隔热夹层。
- 如权利要求1所述的一种适用于磁粒均热烟具的感应线圈装置，其特征在于：所述感应线圈两端分别设有端极导电触点，两个端极导电触点从外层壳体上引出来。
- 如权利要求2所述的一种适用于磁粒均热烟具的感应线圈装置，其特征在于：所述感应线圈中段设有至少一个中段导电触点，各个中段导电触点从外层壳体上引出来。
- 如权利要求1所述的一种适用于磁粒均热烟具的感应线圈装置，其特征在于：所述外层壳体的材质为金属电磁屏蔽材料、表面导电性电磁屏蔽材料或填充复合型电磁屏蔽材料中的其中一种。
- 如权利要求1所述的一种适用于磁粒均热烟具的感应线圈装置，其特征在于：所述内层壳体的材质为绝缘材质。
- 如权利要求1所述的一种适用于磁粒均热烟具的感应线圈装置，其特征在于：所述电磁屏蔽涂层由导电涂料涂覆在外层壳体内侧壁上而形成。
- 如权利要求1所述的一种适用于磁粒均热烟具的感应线圈装置，其特征在于：所述隔热保温材料层由基体以及电镀层构成，基体由玻璃纤维、气凝胶、泡沫、纤维布中的一种或多种混合而成，电镀层由在基体表面电镀金属及导电材料而形成。
- 一种适用于磁粒均热烟具的感应线圈装置的制备方法，其特征在于：所述感应线圈装置为权利要求1所述的感应线圈装置，所述感应线圈装置的制备方法按如下步骤依次进行：步骤一、利用隔热保温材料制备隔热保温片，将隔热保温片包裹在感应线圈外围并封口形成圆环状的隔热保温材料层；步骤二、将绝缘材料研磨成粉末状，添加粘结剂和水基添加剂经混合搅拌后制成绝缘浆料，将绝缘浆料注入内层壳体模具中并进行高温烧结制得所述内层壳体；步骤三、利用电磁屏蔽材料制备所述外层壳体，使得外层壳体具备电磁屏蔽功能；步骤四、在外层壳体内侧壁涂覆电磁屏蔽材料形成所述电磁屏蔽涂层；步骤四、将感应线圈套装在内层壳体外围，再将外层壳体套装在隔热保温材料层外围，且外层壳体内层的电磁屏蔽涂层与隔热保温材料层之间不接触，然后将内层壳体和外层壳体上下两端封口形成一个整体，并对内层壳体与外层壳体之间的环形空腔进行抽真空处理，使得内外两层壳体之间形成真空夹层。
- 如权利要求8所述的一种适用于磁粒均热烟具的感应线圈装置的制备方法，其特征在于：所述感应线圈两端分别设有端极导电触点，所述感应线圈中段设有至少一个中段导电触点，端极导电触点和中段导电触点分别从外层壳体上预留的引出孔中引出来，并对外层壳体的引出孔与相应的导电触点之间的间隙进行绝缘密封处理。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210551042.9A CN114766738A (zh) | 2022-05-18 | 2022-05-18 | 一种适用于磁粒均热烟具的感应线圈装置及其制备方法 |
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| CN114983023A (zh) * | 2022-05-18 | 2022-09-02 | 安徽中烟工业有限责任公司 | 一种具有感应线圈和电感加热体的模块化组合装置 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108617042A (zh) * | 2018-07-05 | 2018-10-02 | 湖北中烟工业有限责任公司 | 一种内部感应加热的吸烟装置 |
| CN111642816A (zh) * | 2020-06-17 | 2020-09-11 | 云南中烟工业有限责任公司 | 一种电磁加热烟具及配套烟支 |
| CN212117064U (zh) * | 2019-12-09 | 2020-12-11 | 深圳市合元科技有限公司 | 用于气雾生成装置的绝热机构及气雾生成装置 |
| CN114766738A (zh) * | 2022-05-18 | 2022-07-22 | 安徽中烟工业有限责任公司 | 一种适用于磁粒均热烟具的感应线圈装置及其制备方法 |
| CN114983023A (zh) * | 2022-05-18 | 2022-09-02 | 安徽中烟工业有限责任公司 | 一种具有感应线圈和电感加热体的模块化组合装置 |
| US20220408822A1 (en) * | 2020-02-14 | 2022-12-29 | Kt&G Corporation | Aerosol generating device and aerosol generating system |
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2023
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108617042A (zh) * | 2018-07-05 | 2018-10-02 | 湖北中烟工业有限责任公司 | 一种内部感应加热的吸烟装置 |
| CN212117064U (zh) * | 2019-12-09 | 2020-12-11 | 深圳市合元科技有限公司 | 用于气雾生成装置的绝热机构及气雾生成装置 |
| US20220408822A1 (en) * | 2020-02-14 | 2022-12-29 | Kt&G Corporation | Aerosol generating device and aerosol generating system |
| CN111642816A (zh) * | 2020-06-17 | 2020-09-11 | 云南中烟工业有限责任公司 | 一种电磁加热烟具及配套烟支 |
| CN114766738A (zh) * | 2022-05-18 | 2022-07-22 | 安徽中烟工业有限责任公司 | 一种适用于磁粒均热烟具的感应线圈装置及其制备方法 |
| CN114983023A (zh) * | 2022-05-18 | 2022-09-02 | 安徽中烟工业有限责任公司 | 一种具有感应线圈和电感加热体的模块化组合装置 |
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