WO2018227747A1 - Transformateur de puissance à base de fil de graphène - Google Patents

Transformateur de puissance à base de fil de graphène Download PDF

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Publication number
WO2018227747A1
WO2018227747A1 PCT/CN2017/097353 CN2017097353W WO2018227747A1 WO 2018227747 A1 WO2018227747 A1 WO 2018227747A1 CN 2017097353 W CN2017097353 W CN 2017097353W WO 2018227747 A1 WO2018227747 A1 WO 2018227747A1
Authority
WO
WIPO (PCT)
Prior art keywords
power transformer
windings
graphene
wire
graphene wire
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/097353
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English (en)
Chinese (zh)
Inventor
郭其达
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Sanma Electronic Appliances Co Ltd
Original Assignee
Shenzhen Sanma Electronic Appliances Co Ltd
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 Shenzhen Sanma Electronic Appliances Co Ltd filed Critical Shenzhen Sanma Electronic Appliances Co Ltd
Publication of WO2018227747A1 publication Critical patent/WO2018227747A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/323—Insulation between winding turns, between winding layers

Definitions

  • the present invention relates to the field of power transformers, and more particularly to power transformers based on graphene wires.
  • the power transformer mostly uses copper wire as the winding, and the copper wire is the most cost-effective material among the currently commercially available conductive materials.
  • copper wire has a good price/performance ratio, it is not a perfect material because it has a non-negligible resistance. Due to the existence of the resistor, the power transformer needs to consider the temperature rise of the transformer and the voltage regulation rate. The most important thing is that the primary winding of the power transformer is large, the secondary current is large, and the primary and secondary wire diameters cannot be taken very small. As a result, the volume of the transformer has not been flattened like a high-frequency planar transformer.
  • the defect of the prior art is that the existing power transformer usually uses a copper wire as a winding. Due to the existence of the resistance of the copper wire itself, in order to meet the requirements of the power transformer heat generation and voltage regulation rate, the power transformer is usually bulky.
  • the present invention provides a power transformer based on a graphene wire, which replaces a common copper wire with a graphene wire, utilizes the high conductivity and low resistance characteristics of the graphene, and makes the winding into a PCB board winding with reference to a planar transformer.
  • the voltage regulation rate of the transformer is reduced, the heat generation of the winding is reduced, and the power transformer is flattened as never before.
  • the present invention provides a power transformer based on a graphene wire, comprising: a transformer casing;
  • each set of power transformer windings is composed of a magnetic core and a graphene wire, and the graphene wires are wound on the magnetic core;
  • Each set of power transformer windings is a PCB board winding
  • the plurality of sets of power transformer windings are arranged in a predetermined order, and the plurality of sets of power transformer windings are provided with an insulating material.
  • the invention provides a graphene wire-based power transformer, the technical proposal thereof comprises: a transformer casing; a plurality of sets of power transformer windings are fixedly installed in an internal cavity of the transformer casing, and each set of power transformer windings is composed of a magnetic core and a graphene wire composition, the graphene wire is wound on the magnetic core; each set of power transformer windings is a PCB board winding; the plurality of sets of power transformer windings are arranged in a predetermined order, and the plurality of power sources are assembled Insulation material is provided between the transformer windings.
  • the graphene wire-based power transformer provided by the invention replaces the ordinary copper wire with the graphene wire, utilizes the high conductivity and low resistance characteristics of the graphene, and forms the winding of the PCB board with reference to the planar transformer to ensure the winding between the windings. Withstand voltage and insulation, the voltage regulation of the transformer is reduced, the heat generation of the winding is reduced, and the power transformer is flattened like never before.
  • graphene wires are linear or ribbon-shaped.
  • the same winding of the plurality of sets of power transformer windings is linked by a buried via.
  • each set of power transformer windings is connected to the circuit board through a lead pin, and the lead pins are disposed on the PCB board windings.
  • a double-sided tape is further included, and the double-sided tape is disposed on a surface of the transformer casing.
  • the magnetic core is made of a silicon steel sheet.
  • the number of sets of the plurality of sets of power transformer windings is four.
  • FIG. 1A is a front elevational view showing the external structure of a power transformer based on a graphene wire according to an embodiment of the present invention
  • FIG. 1B shows a power transformer based on a graphene wire provided by an embodiment of the present invention. Side view of the outer structure;
  • 1C is a bottom view showing the external structure of a graphene wire-based power transformer according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing a winding structure of a power transformer based on a graphene wire according to an embodiment of the present invention
  • FIG. 3 is a schematic view showing a winding arrangement of a power transformer based on a graphene wire according to an embodiment of the present invention
  • FIG. 4 is a longitudinal sectional structural view of a power transformer based on a graphene wire provided by an embodiment of the present invention.
  • the present invention provides a power transformer based on a graphene wire 3, comprising: a transformer casing;
  • a plurality of sets of power transformer windings 2 are fixedly mounted in an internal cavity of the transformer casing, and each set of power transformer windings 2 is composed of a magnetic core 1 and a graphene wire 3, and the graphene wires 3 are wound around the magnetic core 1;
  • Each group of power transformer windings 2 is a PCB board winding 2;
  • the plurality of sets of power transformer windings 2 are arranged in a predetermined order, and the insulating material 8 is provided between the plurality of sets of power transformer windings 2.
  • the invention provides a power transformer based on graphene wire 3, and the technical proposal thereof comprises: a transformer casing; a plurality of sets of power transformer windings 2 are fixedly installed in an internal cavity of the transformer casing, and each group of power transformer windings 2 is composed of a magnetic core 1 and graphene wire 3, graphene wire 3 is wound on magnetic core 1; each group of power transformer winding 2 is PCB board winding 2; multiple sets of power transformer winding 2 according to preset The assembly is sequentially arranged, and the insulating material 8 is provided between the plurality of sets of power transformer windings 2.
  • the power transformer based on the graphene wire 3 provided by the invention replaces the ordinary copper wire with the graphene wire 3, utilizes the high conductivity and low resistance characteristics of the graphene, and forms the winding 2 into the PCB board winding 2 with reference to the planar transformer.
  • the voltage and insulation between the windings 2 are ensured, the voltage regulation rate of the transformer is reduced, the heat generation of the winding 2 is reduced, and the power transformer is flattened as never before.
  • a layer of graphene is grown outside the copper wire to form the wire 3 as the power transformer winding 2, and the winding 2 is integrated into the PCB board to obtain the PCB board winding 2.
  • the graphene wires 3 are linear or strip-shaped.
  • the graphene wires 3 are linear or strip-shaped, which can reduce the thickness of the winding 2 and reduce the volume of the power transformer.
  • the same winding 2 of the plurality of sets of power transformer windings 2 is linked by a buried via 6.
  • the same winding 2 is connected through the buried hole 6, which satisfies the number of turns to be achieved by the transformer.
  • each set of power transformer windings 2 is connected to the circuit board via a pin 4, and the pin 4 is disposed on the PCB board winding 2.
  • Each set of power transformer windings 2 is connected by a pin 4, and the structure is simple and easy to implement.
  • the pin 4 is a plurality of pin pins, which are respectively disposed on the four corners of the PCB board winding, so that the fixing between the PCB board windings is stronger and more stable.
  • the lead pin 4 is a copper pin 4.
  • a double-sided tape 5 is further included, and the double-sided tape 5 is disposed on the surface of the transformer casing.
  • the double-sided tape 5 is used for the installation of the power transformer based on the graphene wire 3, which is simple and convenient, and saves cost.
  • the magnetic core 1 is made of a silicon steel sheet.
  • silicon increases the electrical resistivity and maximum magnetic permeability of iron, reducing coercivity, core loss (iron loss) and magnetic aging.
  • the height of the transformer is reduced by customizing the smaller steel sheet of the window, which greatly reduces the volume of the transformer.
  • the number of sets of the plurality of sets of power transformer windings 2 is four.
  • the material of the buried via 6 and the via 7 is graphene.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

L'invention concerne un transformateur de puissance à base de fil de graphène, comprenant : un boîtier de transformateur, une pluralité de groupes d'enroulements de transformateur de puissance (2) étant monté fixe dans une cavité interne du boîtier de transformateur, chaque groupe d'enroulements de transformateur de puissance étant composé d'un noyau magnétique (1) et d'un fil de graphène (3), le fil de graphène (3) étant enroulé autour du noyau magnétique (1); chaque groupe d'enroulements de transformateur de puissance (2) est un enroulement à carte de circuit imprimé; la pluralité de groupes d'enroulements de transformateur de puissance sont agencés et assemblés dans un ordre prédéfini, et des matériaux d'isolation (8) sont disposés entre la pluralité de groupes d'enroulements de transformateur de puissance. La présente invention utilise un fil de graphène pour remplacer un fil de cuivre ordinaire, et utilise des propriétés de conductivité élevée et de faible résistance du graphène et forme l'enroulement sous la forme d'un enroulement à carte de circuit imprimé en référence à un transformateur planaire, de manière à assurer une tension de tenue et une isolation entre les enroulements, réduisant le taux de régulation de tension du transformateur, réduisant la génération de chaleur de l'enroulement, et aplatissant le transformateur de puissance.
PCT/CN2017/097353 2017-06-16 2017-08-14 Transformateur de puissance à base de fil de graphène Ceased WO2018227747A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710456725.5A CN107123521A (zh) 2017-06-16 2017-06-16 基于石墨烯导线的电源变压器
CN201710456725.5 2017-06-16

Publications (1)

Publication Number Publication Date
WO2018227747A1 true WO2018227747A1 (fr) 2018-12-20

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PCT/CN2017/097353 Ceased WO2018227747A1 (fr) 2017-06-16 2017-08-14 Transformateur de puissance à base de fil de graphène

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CN (1) CN107123521A (fr)
WO (1) WO2018227747A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102399960B1 (ko) * 2021-06-30 2022-05-20 송암시스콤 주식회사 그래핀 도체를 이용한 고효율 변압기
KR102399954B1 (ko) * 2022-01-25 2022-05-20 송암시스콤 주식회사 그래핀 변압기
CN114420421A (zh) * 2022-02-07 2022-04-29 湖南好易佳电路板股份有限公司 一种复合电路板集成的模块化电磁绕组

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080231408A1 (en) * 2007-03-23 2008-09-25 Shenzhen Putly Optic-Electronic Technology Co., Ltd. Transformer
CN105352008A (zh) * 2015-12-04 2016-02-24 江苏洛基木业有限公司 一种石墨烯自发热地板及低电压自发热地板系统
CN105575624A (zh) * 2014-10-08 2016-05-11 段兴 一种单晶石墨烯线圈
CN106128545A (zh) * 2016-06-23 2016-11-16 杭州电缆股份有限公司 石墨烯芯电导体及其制备方法
CN106683870A (zh) * 2017-03-20 2017-05-17 王勇 一种石墨烯电磁线圈制作方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104064336B (zh) * 2013-03-22 2018-08-21 高屋科技（深圳）有限公司 石墨线圈平面脉冲变压器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080231408A1 (en) * 2007-03-23 2008-09-25 Shenzhen Putly Optic-Electronic Technology Co., Ltd. Transformer
CN105575624A (zh) * 2014-10-08 2016-05-11 段兴 一种单晶石墨烯线圈
CN105352008A (zh) * 2015-12-04 2016-02-24 江苏洛基木业有限公司 一种石墨烯自发热地板及低电压自发热地板系统
CN106128545A (zh) * 2016-06-23 2016-11-16 杭州电缆股份有限公司 石墨烯芯电导体及其制备方法
CN106683870A (zh) * 2017-03-20 2017-05-17 王勇 一种石墨烯电磁线圈制作方法

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