WO2021196678A1 - 高压取电电源灌封变压器 - Google Patents

高压取电电源灌封变压器 Download PDF

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Publication number
WO2021196678A1
WO2021196678A1 PCT/CN2020/132745 CN2020132745W WO2021196678A1 WO 2021196678 A1 WO2021196678 A1 WO 2021196678A1 CN 2020132745 W CN2020132745 W CN 2020132745W WO 2021196678 A1 WO2021196678 A1 WO 2021196678A1
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transformer
winding frame
power supply
primary
voltage power
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PCT/CN2020/132745
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English (en)
French (fr)
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秦江勋
吴小飞
唐庆凤
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南京安盛电子有限公司
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Publication of WO2021196678A1 publication Critical patent/WO2021196678A1/zh

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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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • 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
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support

Definitions

  • the utility model belongs to the technical field of application of power-taking transformers, and specifically relates to a potting transformer for high-voltage power-taking power supplies.
  • Transformer is a device that uses the principle of electromagnetic induction to change the AC voltage.
  • the main components are the primary coil, the secondary coil and the iron core (magnetic core).
  • the main functions are: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), etc. According to the purpose, it can be divided into: power transformer and special transformer (electric furnace transformer, rectifier transformer, power frequency test transformer, voltage regulator , Mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, transformers, etc.).
  • the fundamental purpose of the transformer is to ensure the safety of people.
  • the main function of the transformer is to step down and isolate.
  • the step down is to reduce the high voltage (such as 220V city power) to a safe voltage.
  • Isolation is also to isolate the ground voltage of the live wire.
  • transformers There are two types of transformers on the market: bare transformers and sealed transformers.
  • the silicon steel sheets of the bare transformers are exposed, and the wire package is only covered with two layers of tape. It is difficult to ensure the insulation between the primary and secondary stages, and the shell is exposed, which is easy to leak. Cause an electric shock accident.
  • Epoxy potted transformers solve this problem well.
  • the transformer is put into a plastic case and filled with epoxy resin.
  • the shell has no live parts at all, and the epoxy resin can penetrate into the gap of the transformer.
  • the electric strength of the resin is much greater than that of air.
  • the voltage of 3000V can penetrate 1mm of air, but if you want to penetrate the 1mm ring Oxygen resin requires a voltage of tens of thousands of volts.
  • the electrical strength of the potted transformer is one level higher than that of the bare type, and the potting methods are also divided into atmospheric potting and vacuum potting.
  • Atmospheric potting is to pour epoxy resin into the shell under normal air pressure. Vacuum potting requires special equipment to pour epoxy resin into the shell in a vacuum environment. Compared with atmospheric potting, vacuum potting can be drawn out. The air inside, the finished product has no bubbles.
  • the existing high-voltage power supply potting transformer has unreasonable design, low product production efficiency (not easy to assemble), short service life, and poor safety and quality stability.
  • the present invention provides a potting transformer for high-voltage power supply.
  • the purpose of the utility model is to provide a high-voltage power supply potting transformer, which has a reasonable design structure, is easy to assemble, has high production efficiency, and has excellent safety performance, stability and reliability during use.
  • the utility model provides a potting transformer for high voltage power supply, including a transformer shell, a sealing potting glue layer, and a silicon steel sheet iron core arranged in a cavity formed by the transformer shell and the sealing potting glue layer.
  • the potted transformer with high voltage power supply further includes square fixing holes arranged in the four corners of the transformer shell.
  • the potted transformer with high-voltage power supply further includes four-corner round limit protrusions arranged on the bottom surface of the transformer shell.
  • the thickness of the primary and secondary barriers is 2 mm.
  • the transformer housing has a flat structure.
  • the high-voltage power supply potting transformer of the present invention has the beneficial effects of reasonable design structure, easy assembly, high production efficiency, and excellent safety performance, stability and reliability during use.
  • Fig. 1 is a schematic diagram of the structure of the potted transformer for high-voltage power supply of the present invention.
  • the high-voltage power supply potting transformer shown in Figure 1 includes a transformer housing 9, a sealing potting glue layer 7, and silicon steel arranged in a cavity formed by the transformer housing 9 and the sealing potting glue layer 7.
  • the high-voltage power supply potting transformer further includes square fixing holes 12 arranged in the four corners of the transformer housing 9; and the high-voltage power supply potting transformer further includes four corners arranged on the bottom surface of the transformer housing 9
  • the circular limiting protrusion 13; and the thickness of the primary and secondary barrier 11 is 2mm; and the transformer housing 9 is a flat structure.
  • the high-voltage power supply potting transformer of this structure 1. By optimizing the design of the primary winding, the single trunking is optimized into multiple trunks, and each primary wiring trough is separated by a barrier, so that the primary coil can be separated. The high-voltage voltage drop between the first turn and the last turn is distributed to each primary wiring groove, thereby reducing the voltage drop and improving the high-voltage input performance of the primary wire bud; 2. Using a double-wound skeleton and input and output as lead pins, It is convenient for automated production, and is more conducive to customers' requirements for various personalized input and output and power combinations of transformers; 3. Some raw materials of the transformer can use existing standard products, such as housings, silicon steel sheets, etc., with low cost; 4. Use Epoxy resin potting glue vacuum potting the transformer body to strengthen the insulation performance of the transformer, allowing the transformer to work in a harsh environment and prolong its service life.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

高压取电电源灌封变压器，属于取电变压器应用技术领域，包括变压器外壳（9）、密封灌封胶层（7）、矽钢片铁芯（4）、第一绕线骨架（2）、第二绕线骨架（5）、若干个次级输出针脚（6）、若干个初级输出针脚（8）、初次级隔档（11）、次级线苞（3）、若干个初级线苞（1）和次级中空隔档（10）。该高压取电电源灌封变压器的有益效果在于：其设计结构合理，便于组装、生产效率高，且使用过程中安全性能优、稳定可靠。

Description

高压取电电源灌封变压器 技术领域
本实用新型属于取电变压器应用技术领域，具体涉及高压取电电源灌封变压器。
背景技术
变压器(Transformer)是利用电磁感应的原理来改变交流电压的装置，主要构件是初级线圈、次级线圈和铁芯(磁芯)。主要功能有：电压变换、电流变换、阻抗变换、隔离、稳压(磁饱和变压器)等，按用途可以分为：电力变压器和特殊变压器(电炉变、整流变、工频试验变压器、调压器、矿用变、音频变压器、中频变压器、高频变压器、冲击变压器、仪用变压器、电子变压器、电抗器、互感器等)。
变压器存在的根本目的就是保证人的安全，变压器的主要作用是降压和隔离，降压是为了把高电压(如220V的市电)降到安全电压以内，隔离也是把火线的对地电压隔离开。市场上的变压器还有裸式和密封之分，裸式变压器的矽钢片裸露在外，线包也只是包两层胶带，初次级之间的绝缘很难保证，而且外壳裸露，一旦漏电很容易引发触电事故。
环氧灌封变压器就很好的解决了这个问题，变压器装入塑料外壳并且灌入环氧树脂。外壳完全没有带电的部分，并且环氧树脂可以渗透入变压器的缝隙中，树脂的抗电强度比空气要大得多，3000V的电压就可以击穿1mm的空气，但是要想击穿1mm的环氧树脂则需要几万伏的电压。经过灌封的变压器的抗电强度比裸式的要高出一个等级，灌封方式也分为常压灌封和真空灌封。常压灌封就是在正常气压条件下下将环氧树脂浇入外壳内，真空灌封则需要专用设备在真空环境下将环氧树脂灌入外壳，相对常压灌封，真空灌封可以抽出内部的空气，成品没有气泡。
现有的高压取电电源灌封变压器，其设计不合理，产品生产效率低(不便于组装)，同时使用寿命短，且安全性和品质稳定性都较差等。
因此，基于上述问题，本实用新型提供高压取电电源灌封变压器。
实用新型内容
实用新型目的：本实用新型的目的是提供高压取电电源灌封变压器，其设计结构合理，便于组装、生产效率高，且使用过程中安全性能优、稳定可靠。
技术方案：本实用新型提供高压取电电源灌封变压器，包括相配合使用的变压器外壳、密封灌封胶层，及设置在变压器外壳、密封灌封胶层所构成腔体内的矽钢片铁芯、第一绕线骨架、第二绕线骨架，及分别设置在第一绕线骨架、第二绕线骨架两端且贯穿密封灌封胶层的若干个次级输出针脚、若干个初级输出针脚，及分别设置在第一绕线骨架、第二绕线骨架上的初次级隔档，及分别设置在第一绕线骨架、第二绕线骨架上且位于初次级隔档一侧的次级线苞，及分别设置在第一绕线骨架、第二绕线骨架上且位于初次级隔档另一侧的若干个初级线苞、次级中空隔档。
本技术方案的，所述高压取电电源灌封变压器，还包括设置在变压器外壳四角内的正方形固定孔。
本技术方案的，所述高压取电电源灌封变压器，还包括设置在变压器外壳底面的四角的圆形限位凸柱。
本技术方案的，所述初次级隔档的厚度为2mm。
本技术方案的，所述变压器外壳为扁平型结构。
与现有技术相比，本实用新型的高压取电电源灌封变压器的有益效果在于：其设计结构合理，便于组装、生产效率高，且使用过程中安全性能优、稳定可靠。
附图说明
图1是本实用新型的高压取电电源灌封变压器的结构示意图。
具体实施方式
下面结合附图和具体实施例，进一步阐明本实用新型。
如图1所示的高压取电电源灌封变压器，包括相配合使用的变压器外壳9、密封灌封胶层7，及设置在变压器外壳9、密封灌封胶层7所构成腔体内的矽钢片铁芯4、第一绕线骨架2、第二绕线骨架5，及分别设置在第一绕线骨架2、第二绕线骨架5两端且贯穿密封灌封胶层7的若干个次级输出针脚6、若干个初级输出针脚8，及分别设置在第一绕线骨架2、第二绕线骨架5上的初次级隔档11， 及分别设置在第一绕线骨架2、第二绕线骨架5上且位于初次级隔档11一侧的次级线苞3，及分别设置在第一绕线骨架2、第二绕线骨架5上且位于初次级隔档11另一侧的若干个初级线苞1、次级中空隔档10。
进一步优选的，所述高压取电电源灌封变压器，还包括设置在变压器外壳9四角内的正方形固定孔12；及所述高压取电电源灌封变压器，还包括设置在变压器外壳9底面的四角的圆形限位凸柱13；及所述初次级隔档11的厚度为2mm；及所述变压器外壳9为扁平型结构。
本结构的高压取电电源灌封变压器：1、通过优化初级绕线的设计，将单一线槽的优化为多线槽，各个初级分线槽再使用隔档进行分隔，这样可以将初级线圈的第一匝与最后一匝之间的高压压降，分摊到各个初级分线槽，从而降低压降，提高初级线苞的高压输入性能；2、采用双绕线骨架以及输入输出为引出针脚，方便自动化生产，更有利于客户对变压器的各种个性化输入输出及功率组合的要求；3、变压器部分原材料可使用现有的标准品，如外壳、矽钢片等，成本低；4、使用环氧树脂灌封胶对变压器主体进行真空灌封，加强变压器的绝缘性能，可让变压器的在恶劣的使用环境里面工作，延长使用寿命。
以上所述仅是本实用新型的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下，还可以作出若干改进，这些改进也应视为本实用新型的保护范围。

Claims (5)

  1. 高压取电电源灌封变压器，其特征在于：包括相配合使用的变压器外壳(9)、密封灌封胶层(7)，及设置在变压器外壳(9)、密封灌封胶层(7)所构成腔体内的矽钢片铁芯(4)、第一绕线骨架(2)、第二绕线骨架(5)，及分别设置在第一绕线骨架(2)、第二绕线骨架(5)两端且贯穿密封灌封胶层(7)的若干个次级输出针脚(6)、若干个初级输出针脚(8)，及分别设置在第一绕线骨架(2)、第二绕线骨架(5)上的初次级隔档(11)，及分别设置在第一绕线骨架(2)、第二绕线骨架(5)上且位于初次级隔档(11)一侧的次级线苞(3)，及分别设置在第一绕线骨架(2)、第二绕线骨架(5)上且位于初次级隔档(11)另一侧的若干个初级线苞(1)、次级中空隔档(10)。
  2. 根据权利要求1所述的高压取电电源灌封变压器，其特征在于：所述高压取电电源灌封变压器，还包括设置在变压器外壳(9)四角内的正方形固定孔(12)。
  3. 根据权利要求2所述的高压取电电源灌封变压器，其特征在于：所述高压取电电源灌封变压器，还包括设置在变压器外壳(9)底面的四角的圆形限位凸柱(13)。
  4. 据权利要求1所述的高压取电电源灌封变压器，其特征在于：所述初次级隔档(11)的厚度为2mm。
  5. 据权利要求1所述的高压取电电源灌封变压器，其特征在于：所述变压器外壳(9)为扁平型结构。
PCT/CN2020/132745 2020-03-30 2020-11-30 高压取电电源灌封变压器 WO2021196678A1 (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113903549A (zh) * 2021-10-14 2022-01-07 贵阳顺络迅达电子有限公司 一种高可靠性多通道变压器及其制造方法
CN118098772A (zh) * 2024-04-01 2024-05-28 安徽省昌盛电子有限公司 一种脉冲变压器及其制造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211788567U (zh) * 2020-03-30 2020-10-27 南京安盛电子有限公司 高压取电电源灌封变压器

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CN201788807U (zh) * 2010-08-12 2011-04-06 国琏电子（上海）有限公司 变压器
CN107068339A (zh) * 2017-03-16 2017-08-18 深圳市华云图科技有限公司 封装的多级绝缘升压变压器
CN209766225U (zh) * 2019-06-28 2019-12-10 南京安盛电子有限公司 扁平分体式骨架灌封变压器
CN211788567U (zh) * 2020-03-30 2020-10-27 南京安盛电子有限公司 高压取电电源灌封变压器

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JPH10149932A (ja) * 1996-11-19 1998-06-02 Hitachi Ferrite Electronics Ltd 高圧トランス
CN201788807U (zh) * 2010-08-12 2011-04-06 国琏电子（上海）有限公司 变压器
CN107068339A (zh) * 2017-03-16 2017-08-18 深圳市华云图科技有限公司 封装的多级绝缘升压变压器
CN209766225U (zh) * 2019-06-28 2019-12-10 南京安盛电子有限公司 扁平分体式骨架灌封变压器
CN211788567U (zh) * 2020-03-30 2020-10-27 南京安盛电子有限公司 高压取电电源灌封变压器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113903549A (zh) * 2021-10-14 2022-01-07 贵阳顺络迅达电子有限公司 一种高可靠性多通道变压器及其制造方法
CN118098772A (zh) * 2024-04-01 2024-05-28 安徽省昌盛电子有限公司 一种脉冲变压器及其制造方法

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