WO2022120675A1 - Plaque chauffante en graphène ayant une structure d'encapsulation - Google Patents

Plaque chauffante en graphène ayant une structure d'encapsulation Download PDF

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Publication number
WO2022120675A1
WO2022120675A1 PCT/CN2020/135120 CN2020135120W WO2022120675A1 WO 2022120675 A1 WO2022120675 A1 WO 2022120675A1 CN 2020135120 W CN2020135120 W CN 2020135120W WO 2022120675 A1 WO2022120675 A1 WO 2022120675A1
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WO
WIPO (PCT)
Prior art keywords
heating plate
graphene
graphene heating
lead
metal shell
Prior art date
Application number
PCT/CN2020/135120
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English (en)
Chinese (zh)
Inventor
徐冬春
Original Assignee
苏州烯时代材料科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州烯时代材料科技有限公司 filed Critical 苏州烯时代材料科技有限公司
Priority to PCT/CN2020/135120 priority Critical patent/WO2022120675A1/fr
Publication of WO2022120675A1 publication Critical patent/WO2022120675A1/fr

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    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/36—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in insulating material

Definitions

  • the invention relates to the field of graphene heating, in particular to a graphene heating plate with an encapsulation structure.
  • the purpose of the present invention is to solve the problem that the electric heating plate (sheet) in the household electric heating product needs both safe insulation and efficient heat conduction, and at the same time, it also ensures sufficient impact strength, and under the condition of satisfying the performance, the manufacturing cost is reduced, and the appearance size of the product is improved. Minimize, reduce space waste, meet the overall appearance design of the product, solve user pain points in various scenarios, and improve customer satisfaction.
  • the technical scheme adopted in the present invention is:
  • a graphene heating plate with an encapsulation structure is characterized in that, comprising a graphene heating film, an insulating layer, a metal shell and an end cover;
  • the graphene heating film comprises a graphene membrane and is fixedly arranged along the edge of the graphene membrane two electrodes, and one end of each electrode forms the lead end of the electrode at the broad side of the graphene membrane, the insulating layer is fixedly covered on the upper and lower surfaces of the graphene heating film to form a heating plate body, and the metal shell is The thin-walled shell has a flat annular structure in cross section.
  • the heating plate body is sealed and fixed in the inner cavity of the metal shell through the end caps at both ends of the metal shell.
  • the wire outlet groove, the electrode lead-out end passes through the wire outlet groove, and is sealedly connected with the end cover or the metal shell at the wire outlet groove.
  • the insulating layer is mica board or PI film or other insulating materials with good flexibility and thermal conductivity.
  • the outer surface of the metal shell has a graphene coating.
  • the metal shell has a U-shaped structure, a serpentine-shaped structure or a reel-shaped structure.
  • the inner cavity of the metal shell is provided with several layers of heating plate bodies stacked on each other, and two adjacent heating plate bodies can share an insulating layer.
  • the two insulating layers constituting the heating plate body are an integral U-shaped insulating sheet, and the graphene heating film is sandwiched in the U-shaped groove of the insulating sheet.
  • the lead-out ends of the two electrodes are directly led out on the same side of the graphene heating plate or led out in an L-shape.
  • the lead-out ends of the two electrodes are directly led out on opposite sides of the graphene heating plate or led out in an L-shape.
  • the graphene membrane in the graphene heating film is a single-layer structure or a multi-layer composite structure.
  • the invention has simple structure, convenient processing and packaging.
  • the graphene heating film is covered with insulating layers up and down, and then wrapped with a thin-walled metal casing, and the end caps are encapsulated, wherein good insulation and conductive layers are added, and under the same input power, better performance is achieved.
  • the thin-walled metal shell can effectively prevent the impact of external hard objects and puncture the graphene heating film, ensuring the efficient, long-term and stable operation of the graphene heating film.
  • the heating plate (sheet) of the present invention can realize an ultra-thin package design module structure, and at the same time has sufficient flexibility, users can bend and process the packaged heating plate (sheet) into a desired shape according to their own needs to meet the differences It also has a high level of dust and water resistance.
  • the heating plate (sheet) packaging module of the present invention does not need a large number of insulating layers, so that the thickness is much smaller than that of the existing heating plate, and ultra-thin design is realized. More calorific value and strong practicability.
  • FIG. 1 is a schematic diagram of the exploded structure of the heating plate of the present invention.
  • FIG. 2 is a schematic view of the structure of the serpentine heating plate of the present invention.
  • FIG. 3 is a schematic structural diagram of the U-shaped heating plate of the present invention.
  • FIG. 4 is a schematic structural diagram of the reel-shaped heating plate of the present invention.
  • FIG. 5 is a schematic structural diagram 1 of the present invention in which the lead-out ends of the two electrodes are directly led out on the same side of the graphene heating plate.
  • FIG. 6 is a second structural schematic diagram of the present invention in which the two electrode lead-out ends are directly led out on the same side of the graphene heating plate.
  • FIG. 7 is a schematic structural diagram 1 of the present invention, in which the lead-out ends of the two electrodes are led out in an L-shape on the same side of the graphene heating plate.
  • FIG. 8 is a second structural schematic diagram of the L-shaped lead-out of the two electrodes on the same side of the graphene heating plate according to the present invention.
  • FIG. 9 is a schematic structural diagram of the present invention, in which the lead-out ends of the two electrodes are directly led out on opposite sides of the graphene heating plate.
  • FIG. 10 is a schematic structural diagram of the L-shaped lead-out of the two-electrode lead-out ends on opposite sides of the graphene heating plate according to the present invention.
  • a graphene heating plate with an encapsulation structure includes a graphene heating film, an insulating layer 2 , a metal shell 1 and an end cover 5 .
  • the graphene heating film includes a graphene membrane 3 of a single-layer or multi-layer composite structure and two electrodes 4 fixedly arranged along the edge of the graphene membrane 3.
  • the electrodes 4 can be straight strips, L-shaped strips, etc., and each electrode One end of 4 forms the lead-out end 41 of the electrode at the broad side of the graphene membrane 3 .
  • the insulating layer 2 is a mica plate or PI film or other insulating materials with good flexibility and thermal conductivity.
  • the insulating layer 2 is fixedly covered on the upper and lower surfaces of the graphene heating film to form the heating plate body.
  • the cross section of the metal casing 1 is a flat annular structure.
  • the heating plate body is sealed and fixed in the inner cavity of the metal shell 1 through the end caps 5 at both ends of the metal shell 1 .
  • the end cover 5 or the end surface of the metal shell 1 is provided with a wire outlet slot at the corresponding electrode lead-out end 41, and the electrode lead-out end 41 passes through the wire outlet slot, which is convenient for external power connection to realize energization and heating work.
  • the cover 5 or the metal casing 1 is sealed and connected to achieve waterproof function.
  • the metal shell 1 is made of a metal with high tensile strength and surface hardness (such as aluminum alloy, magnesium-aluminum alloy, etc., and is not limited to such metals), and more preferably, the metal shell 1 is a thin-walled shell , so that users can make the metal shell shape into various shapes according to different usage scenarios, such as U-shaped structure, snake-shaped structure or reel-shaped structure as shown in Figure 2-4.
  • the outer surface of the metal casing 1 has a graphene coating.
  • the two insulating layers 2 constituting the heating plate body are a U-shaped insulating sheet, and the graphene heating film is sandwiched in the U-shaped groove of the insulating sheet.
  • the inner cavity of the metal casing 1 is provided with several layers of heating plate bodies stacked on each other, and two adjacent heating plate bodies share an insulating layer.
  • the two electrode lead-out ends 41 on the graphene heating film can be set at different positions according to different usage scenarios.
  • the two electrode lead-out ends 41 are arranged on the same side of the graphene heating plate.
  • the lead-out end of the electrode is directly lead or L-shaped lead.
  • the lead-out ends of the two electrodes are arranged in the middle or at the ends of the opposite sides of the graphene heating plate, and the lead-out ends of the electrodes are directly lead out or L-shaped lead out.
  • the graphene heating plate with encapsulation structure of the present invention solves the problem that the electric heating plate (sheet) in household electric heating products needs both safe insulation and efficient heat conduction.
  • the heating plate (sheet) has sufficient impact strength, and at the same time, it ensures safe insulation and long service life under the condition of meeting product performance. Its manufacturing process is simple, and the modular design of ultra-thin appearance allows the shape to be processed into different special-shaped structures to meet different styles of household electric heating products, while also minimizing product size, making the product appearance miniaturized, reducing manufacturing costs and reducing Waste of space, solve user pain points in various scenarios, and improve customer satisfaction.

Landscapes

  • Resistance Heating (AREA)

Abstract

La présente invention concerne une plaque chauffante en graphène ayant une structure d'encapsulation, comprenant un film chauffant en graphène, des couches isolantes, un boîtier métallique et des couvercles d'extrémité. Le film chauffant en graphène comprend une feuille de film en graphène et deux électrodes disposées de manière fixe le long du bord de la feuille de film en graphène, et une extrémité de chaque électrode forme une extrémité de sortie de l'électrode sur un côté large de la feuille de film en graphène ; les couches isolantes recouvrent de manière fixe les surfaces supérieure et inférieure du film chauffant en graphène pour constituer un corps de plaque chauffante ; le boîtier métallique est un boîtier à parois minces, et la section transversale du boîtier métallique est une structure annulaire plate ; le corps de plaque chauffante est encapsulé hermétiquement et fixé dans une cavité interne du boîtier métallique au moyen des couvercles d'extrémité aux deux extrémités du boîtier métallique ; des fentes de sortie de fil sont ménagées à des positions sur les surfaces du couvercle d'extrémité ou de l'extrémité du boîtier métallique correspondant aux extrémités de sortie des électrodes ; les extrémités de sortie des électrodes passent à travers les fentes de sortie de fil, et sont reliées hermétiquement au couvercle d'extrémité ou au boîtier métallique au niveau des fentes de sortie de fil. La plaque chauffante en graphène est sans danger, isolante, efficace et thermoconductrice, elle présente une résistance aux chocs suffisante et peut être appliquée à des produits de chauffage électrique domestiques de différents styles.
PCT/CN2020/135120 2020-12-10 2020-12-10 Plaque chauffante en graphène ayant une structure d'encapsulation WO2022120675A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/135120 WO2022120675A1 (fr) 2020-12-10 2020-12-10 Plaque chauffante en graphène ayant une structure d'encapsulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/135120 WO2022120675A1 (fr) 2020-12-10 2020-12-10 Plaque chauffante en graphène ayant une structure d'encapsulation

Publications (1)

Publication Number Publication Date
WO2022120675A1 true WO2022120675A1 (fr) 2022-06-16

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090277897A1 (en) * 2008-05-07 2009-11-12 Nanocomp Technologies, Inc. Nanostructure-based heating devices and methods of use
CN104219797A (zh) * 2014-09-10 2014-12-17 浙江碳谷上希材料科技有限公司 一种石墨烯电热膜
US20160379740A1 (en) * 2010-11-17 2016-12-29 Battelle Memorial Institute Carbon Nanotube Thin Film Laminate Resistive Heater
CN109413773A (zh) * 2017-08-18 2019-03-01 王敏 一种石墨烯电热膜(电热板)电热取暖炕板的制作方法
CN109874187A (zh) * 2019-01-29 2019-06-11 鸿纳（东莞）新材料科技有限公司 一种石墨烯加热膜及其制配方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090277897A1 (en) * 2008-05-07 2009-11-12 Nanocomp Technologies, Inc. Nanostructure-based heating devices and methods of use
US20160379740A1 (en) * 2010-11-17 2016-12-29 Battelle Memorial Institute Carbon Nanotube Thin Film Laminate Resistive Heater
CN104219797A (zh) * 2014-09-10 2014-12-17 浙江碳谷上希材料科技有限公司 一种石墨烯电热膜
CN109413773A (zh) * 2017-08-18 2019-03-01 王敏 一种石墨烯电热膜(电热板)电热取暖炕板的制作方法
CN109874187A (zh) * 2019-01-29 2019-06-11 鸿纳（东莞）新材料科技有限公司 一种石墨烯加热膜及其制配方法

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