WO2018227747A1 - Graphene wire-based power transformer - Google Patents
Graphene wire-based power transformer Download PDFInfo
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- 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
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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
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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
- H01F27/02—Casings
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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
- H01F27/32—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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Abstract
Description
本发明涉及电源变压器领域，尤其涉及基于石墨烯导线的电源变压器。The present invention relates to the field of power transformers, and more particularly to power transformers based on graphene wires.
目前，电源变压器多用铜线作为绕组，铜线在目前商用的导电材料中是性价比最高的材料。铜线虽然有不错的性价比，但其却不是完美的材料，因为其拥有不可忽略的电阻。由于电阻的存在，电源变压器在设计时需要考虑变压器的温升以及电压调整率，最重要的是由于电源变压器的初级匝数多，次级电流大，初次级的线径都无法取到很小，导致变压器的体积一直无法做到高频平面变压器那样的扁平化。At present, 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. Although 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.
因此，现有技术的缺陷是：现有电源变压器通常以铜线作为绕组，由于铜线本身电阻的存在，为了满足电源变压器发热和电压调整率的需求，通常电源变压器的体积很大。Therefore, 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.
发明内容Summary of the invention
针对上述技术问题，本发明提供一种基于石墨烯导线的电源变压器，用石墨烯导线取代普通铜线，利用石墨烯的高导电，低电阻的特性，并参照平面变压器将绕组做成PCB板绕组，以保证绕组间的耐压和绝缘，降低了变压器的电压调整率，减小了绕组的发热，使电源变压器前所未有的呈现了扁平化。In view of the above technical problems, 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. In order to ensure the withstand voltage and insulation between the windings, 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.
为了解决上述问题，本发明提供一种基于石墨烯导线的电源变压器，包括：变压器外壳；In order to solve the above problems, the present invention provides a power transformer based on a graphene wire, comprising: a transformer casing;
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.
本发明提供的一种基于石墨烯导线的电源变压器，其技术方案为：包括：变压器外壳；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；所述每组电源变压器绕组为PCB板绕组；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 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.
本发明提供的基于石墨烯导线的电源变压器，用石墨烯导线取代普通铜线，利用石墨烯的高导电，低电阻的特性，并参照平面变压器将绕组做成PCB板绕组，以保证绕组间的耐压和绝缘，降低了变压器的电压调整率，减小了绕组的发热，使电源变压器前所未有的呈现了扁平化。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.
进一步地，所述石墨烯导线为线性状或带状。Further, the graphene wires are linear or ribbon-shaped.
进一步地，所述多组电源变压器绕组中的同一绕组通过埋孔链接。Further, the same winding of the plurality of sets of power transformer windings is linked by a buried via.
进一步地，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。Further, 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.
进一步地，还包括双面胶，所述双面胶设置在所述变压器外壳表面。Further, a double-sided tape is further included, and the double-sided tape is disposed on a surface of the transformer casing.
进一步地，所述磁芯由矽钢片制成。Further, the magnetic core is made of a silicon steel sheet.
进一步地，所述多组电源变压器绕组的组数为4组。Further, the number of sets of the plurality of sets of power transformer windings is four.
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍。In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the specific embodiments or the description of the prior art will be briefly described below.
图1A示出了本发明实施例所提供的一种基于石墨烯导线的电源变压器的外部结构的主视图；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;
图1B示出了本发明实施例所提供的一种基于石墨烯导线的电源变压器的 外部结构的侧视图；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;
图1C示出了本发明实施例所提供的一种基于石墨烯导线的电源变压器的外部结构的底视图；1C is a bottom view showing the external structure of a graphene wire-based power transformer according to an embodiment of the present invention;
图2示出了本发明实施例所提供的一种基于石墨烯导线的电源变压器的绕组结构示意图；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;
图3示出了本发明实施例所提供的一种基于石墨烯导线的电源变压器的绕组排列示意图；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;
图4示出了本发明实施例所提供的一种基于石墨烯导线的电源变压器的纵剖面结构图。4 is a longitudinal sectional structural view of a power transformer based on a graphene wire provided by an embodiment of the present invention.
下面将结合附图对本发明技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本发明的技术方案，因此只是作为示例，而不能以此来限制本发明的保护范围。The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and thus are merely exemplary and are not intended to limit the scope of the present invention.
实施例一
参见图1A，图1B，图1C，图2至图4，本发明提供一种基于石墨烯导线3的电源变压器，包括：变压器外壳；Referring to FIG. 1A, FIG. 1B, FIG. 1C, FIG. 2 to FIG. 4, the present invention provides a power transformer based on a
变压器外壳的内部腔体中固定安装多组电源变压器绕组2，每组电源变压器绕组2由磁芯1和石墨烯导线3组成，石墨烯导线3缠绕在磁芯1上；A plurality of sets of
每组电源变压器绕组2为PCB板绕组2；Each group of
多组电源变压器绕组2按照预设顺序排列组装，且多组电源变压器绕组2间均设有绝缘材料8。The plurality of sets of
本发明提供的一种基于石墨烯导线3的电源变压器，其技术方案为：包括：变压器外壳；变压器外壳的内部腔体中固定安装多组电源变压器绕组2，每组电源变压器绕组2由磁芯1和石墨烯导线3组成，石墨烯导线3缠绕在磁芯1上；每组电源变压器绕组2为PCB板绕组2；多组电源变压器绕组2按照预设
顺序排列组装，且多组电源变压器绕组2间均设有绝缘材料8。The invention provides a power transformer based on
本发明提供的基于石墨烯导线3的电源变压器，用石墨烯导线3取代普通铜线，利用石墨烯的高导电，低电阻的特性，并参照平面变压器将绕组2做成PCB板绕组2，以保证绕组2间的耐压和绝缘，降低了变压器的电压调整率，减小了绕组2的发热，使电源变压器前所未有的呈现了扁平化。The power transformer based on the
其中，将铜线外生长一层石墨烯制作成导线3作为电源变压器绕组2，并将绕组2整合到PCB板中，得到PCB板绕组2。Wherein, a layer of graphene is grown outside the copper wire to form the
优选地，石墨烯导线3为线性状或带状。Preferably, the
石墨烯导线3为线性状或带状，可使绕组2的厚度变小，减小电源变压器的体积。The
优选地，多组电源变压器绕组2中的同一绕组2通过埋孔6链接。Preferably, the same winding 2 of the plurality of sets of
同一绕组2间通过埋孔6链接，满足变压器所要达到的匝数。The
优选地，每组电源变压器绕组2通过引针4与线路板连接，引针4设置在PCB板绕组2上。Preferably, each set of
通过引针4将每组电源变压器绕组2连接起来，结构简单，易于实现。Each set of
具体地，引针4为多个引针，分别设置在PCB板绕组的4个角上，使PCB板绕组间固定更牢固，更稳定。Specifically, the
优选地，引针4为铜质引针4。Preferably, the
优选地，还包括双面胶5，双面胶5设置在变压器外壳表面。Preferably, a double-
双面胶5用于基于石墨烯导线3的电源变压器的安装，简单方便，节约成本。The double-
优选地，磁芯1由矽钢片制成。Preferably, the
加入硅可提高铁的电阻率和最大磁导率，降低矫顽力、铁芯损耗(铁损)和磁时效。另外通过定制窗口更小的矽钢片使变压器的高度得以降低，很大程度上减小了变压器体积。The addition of silicon increases the electrical resistivity and maximum magnetic permeability of iron, reducing coercivity, core loss (iron loss) and magnetic aging. In addition, the height of the transformer is reduced by customizing the smaller steel sheet of the window, which greatly reduces the volume of the transformer.
优选地，多组电源变压器绕组2的组数为4组。
Preferably, the number of sets of the plurality of sets of
其中，埋孔6和过孔7的材质为石墨烯。The material of the buried via 6 and the via 7 is graphene.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围，其均应涵盖在本发明的权利要求和说明书的范围当中。 Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. The scope is intended to be included within the scope of the claims and the description of the invention.
Claims (7)
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| 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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| 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 |
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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 |
|---|---|---|---|---|
| CN104064336B (en) * | 2013-03-22 | 2018-08-21 | 高屋科技（深圳）有限公司 | graphite coil planar pulse transformer |
-
2017
- 2017-06-16 CN CN201710456725.5A patent/CN107123521A/en active Pending
- 2017-08-14 WO PCT/CN2017/097353 patent/WO2018227747A1/en not_active Ceased
Patent Citations (5)
| 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 (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 |
Also Published As
| Publication number | Publication date |
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| CN107123521A (en) | 2017-09-01 |
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