WO2018227747A1 - Graphene wire-based power transformer - Google Patents
Graphene wire-based power transformer Download PDFInfo
- 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
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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
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- 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
Description
Claims (7)
- 一种基于石墨烯导线的电源变压器,包括变压器外壳,其特征在于:A power transformer based on a graphene wire, comprising a transformer casing, characterized in that:所述变压器外壳的内部腔体中固定安装多组电源变压器绕组,每组电源变压器绕组由磁芯和石墨烯导线组成,所述石墨烯导线缠绕在所述磁芯上;a plurality of sets of power transformer windings are fixedly mounted in the internal cavity of the 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;所述每组电源变压器绕组为PCB板绕组;Each set of power transformer windings is a PCB board winding;所述多组电源变压器绕组按照预设顺序排列组装,且所述多组电源变压器绕组间均设有绝缘材料。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.
- 根据权利要求1所述的基于石墨烯导线的电源变压器,其特征在于,A graphene wire-based power transformer according to claim 1, wherein所述石墨烯导线为线性状或带状。The graphene wires are linear or ribbon-shaped.
- 根据权利要求1所述的基于石墨烯导线的电源变压器,其特征在于,A graphene wire-based power transformer according to claim 1, wherein所述多组电源变压器绕组中的同一绕组通过埋孔链接。The same windings of the plurality of sets of power transformer windings are linked by buried vias.
- 根据权利要求1所述的基于石墨烯导线的电源变压器,其特征在于,A graphene wire-based power transformer according to claim 1, wherein所述每组电源变压器绕组通过引针与线路板连接,所述引针设置在所述PCB板绕组上。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.
- 根据权利要求1所述的基于石墨烯导线的电源变压器,其特征在于,A graphene wire-based power transformer according to claim 1, wherein还包括双面胶,所述双面胶设置在所述变压器外壳表面。A double-sided tape is also included, the double-sided tape being disposed on a surface of the transformer housing.
- 根据权利要求1所述的基于石墨烯导线的电源变压器,其特征在于,A graphene wire-based power transformer according to claim 1, wherein所述磁芯由矽钢片制成。The magnetic core is made of a silicon steel sheet.
- 根据权利要求1所述的基于石墨烯导线的电源变压器,其特征在于,A graphene wire-based power transformer according to claim 1, wherein所述多组电源变压器绕组的组数为4组。 The number of sets of the plurality of sets of power transformer windings is four.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201710456725.5 | 2017-06-16 | ||
CN201710456725.5A CN107123521A (en) | 2017-06-16 | 2017-06-16 | Power transformer based on graphene wire |
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WO2018227747A1 true WO2018227747A1 (en) | 2018-12-20 |
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PCT/CN2017/097353 WO2018227747A1 (en) | 2017-06-16 | 2017-08-14 | Graphene wire-based power transformer |
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KR102399960B1 (en) * | 2021-06-30 | 2022-05-20 | 송암시스콤 주식회사 | A high efficiency transformer with graphene conductor |
KR102399954B1 (en) * | 2022-01-25 | 2022-05-20 | 송암시스콤 주식회사 | A graphene conductor |
CN114420421A (en) * | 2022-02-07 | 2022-04-29 | 湖南好易佳电路板股份有限公司 | Composite circuit board integrated modularized electromagnetic winding |
Citations (5)
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US20080231408A1 (en) * | 2007-03-23 | 2008-09-25 | Shenzhen Putly Optic-Electronic Technology Co., Ltd. | Transformer |
CN105352008A (en) * | 2015-12-04 | 2016-02-24 | 江苏洛基木业有限公司 | Graphene self-heating floor and low-voltage self-heating floor system |
CN105575624A (en) * | 2014-10-08 | 2016-05-11 | 段兴 | Mono-crystalline graphene coil |
CN106128545A (en) * | 2016-06-23 | 2016-11-16 | 杭州电缆股份有限公司 | Graphene core electric conductor and preparation method thereof |
CN106683870A (en) * | 2017-03-20 | 2017-05-17 | 王勇 | Graphene electromagnetic coil manufacturing method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104064336B (en) * | 2013-03-22 | 2018-08-21 | 高屋科技(深圳)有限公司 | graphite coil planar pulse transformer |
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2017
- 2017-06-16 CN CN201710456725.5A patent/CN107123521A/en active Pending
- 2017-08-14 WO PCT/CN2017/097353 patent/WO2018227747A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US20080231408A1 (en) * | 2007-03-23 | 2008-09-25 | Shenzhen Putly Optic-Electronic Technology Co., Ltd. | Transformer |
CN105575624A (en) * | 2014-10-08 | 2016-05-11 | 段兴 | Mono-crystalline graphene coil |
CN105352008A (en) * | 2015-12-04 | 2016-02-24 | 江苏洛基木业有限公司 | Graphene self-heating floor and low-voltage self-heating floor system |
CN106128545A (en) * | 2016-06-23 | 2016-11-16 | 杭州电缆股份有限公司 | Graphene core electric conductor and preparation method thereof |
CN106683870A (en) * | 2017-03-20 | 2017-05-17 | 王勇 | Graphene electromagnetic coil manufacturing method |
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