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WO2018176867A1 - 一种新型的变压器立体卷铁心拉板结构 - Google Patents

一种新型的变压器立体卷铁心拉板结构 Download PDF

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Publication number
WO2018176867A1
WO2018176867A1 PCT/CN2017/112731 CN2017112731W WO2018176867A1 WO 2018176867 A1 WO2018176867 A1 WO 2018176867A1 CN 2017112731 W CN2017112731 W CN 2017112731W WO 2018176867 A1 WO2018176867 A1 WO 2018176867A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
frame
dimensional
transformer
pull plate
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/CN2017/112731
Other languages
English (en)
French (fr)
Inventor
许凯旋
翟丽珍
梁庆宁
罗景桃
周利波
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.)
Haihong Electric Co Ltd
Original Assignee
Haihong Electric 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 Haihong Electric Co Ltd filed Critical Haihong Electric Co Ltd
Priority to DE112017005788.4T priority Critical patent/DE112017005788T5/de
Priority to US16/465,587 priority patent/US11295889B2/en
Publication of WO2018176867A1 publication Critical patent/WO2018176867A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H01F27/263—Fastening parts of the core together
    • 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
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/25—Magnetic cores made from strips or ribbons

Definitions

  • the invention relates to the technical field of transformers, in particular to a three-dimensional winding core pulling plate structure of a transformer.
  • the advantages of the three-dimensional coil core transformer products have been affirmed by the majority of users, and its market share and product capacity are getting bigger and bigger.
  • the traditional three-dimensional coil core transformer core and coil compression structure take-up screw, or pull screw and pull plate In the hybrid structure, the pressing force of the two structures is small, and the pulling screw has insulation requirements on the coil and the lead, which increases the size and manufacturing difficulty of the transformer tank, and also increases the manufacturing cost.
  • the object of the present invention is to provide a three-dimensional winding core pulling plate structure of a transformer which can reduce the cost and improve the safety of the transformer.
  • a novel three-dimensional winding core pulling plate structure comprises a three-dimensional rolling core formed by assembling three rectangular single frames, wherein the three-dimensional winding core comprises three iron core columns, an upper iron yoke and a lower iron yoke, and the three-dimensional winding core
  • the top is mounted with an upper frame surrounding the upper iron yoke
  • the bottom of the three-dimensional core is mounted with a lower frame surrounding the upper iron yoke
  • the core column is provided with a longitudinal section opposite to and parallel to the inner side of the upper frame and the lower frame
  • a pull plate is mounted on a plane of the longitudinal section, and the pull plate is coupled to the upper frame and the lower frame.
  • the upper frame and the lower frame are provided with positioning holes, and the positioning holes are mounted with a connecting shaft for fixed connection with the pull plate.
  • the rectangular single frame is continuously wound by a plurality of whole silicon steel sheets or amorphous alloy strips.
  • the upper frame and the lower frame include a triangular frame that is chamfered and a Y-shaped bracket that is connected to the inner side of the triangular frame.
  • the invention has the beneficial effects that the three-dimensional coil core pulling plate structure adopted by the invention satisfies the requirements of different transformer short-circuit forces by changing the cross-sectional dimensions of the pulling plate and the connecting shaft, simplifies the design scheme and has a simple manufacturing process; the pulling plate is placed in the core cross-section circle. Therefore, it is not necessary to consider the insulation distance between the coil, the lead and the pull plate, reduce the overall size of the transformer, and save the total transformer cost by 3-5%; reduce the discharge point of the coil and the lead to the ground, optimize the structure, reduce the cost, and improve Productivity and transformer operational safety.
  • Figure 1 is a front view of the present invention
  • Figure 2 is a plan view of the present invention.
  • a novel transformer three-dimensional core plate structure of the present invention comprises a three-dimensional core 1 formed by three rectangular single frames, and the three-dimensional core 1 includes three core columns. And an upper iron yoke and a lower iron yoke.
  • the top of the three-dimensional core 1 is mounted with an upper frame 2 surrounding the upper iron yoke.
  • the bottom of the three-dimensional core 1 is mounted with a lower frame 5 surrounding the upper iron yoke.
  • the upper frame 2 and the lower frame 5 are provided with positioning holes, and the positioning holes are mounted with a connecting shaft 4 for fixed connection with the pulling plate 3, so that the pulling plate 3 is fixedly connected with the upper frame 2 and the lower frame 5.
  • the rectangular single frame is continuously wound by a plurality of whole silicon steel sheets or amorphous alloy strips.
  • the upper frame 2 and the lower frame 5 include a triangular frame which is chamfered and a Y-shaped fixing frame connected to the inner side of the triangular frame.
  • the upper frame 2 and the lower frame 5 are respectively mounted on the top and bottom of the three-dimensional core by a Y-shaped fixing frame.
  • the invention adjusts the width dimension of the core piece, and places a pulling plate which satisfies the requirement of the transformer short-circuit resistance in the cross section circle of the iron core column, the pulling plate 3 and the core piece are separated by an insulating material, and then the pulling plate 3 and the iron core upper and lower frames are further arranged.
  • the positioning holes are connected by the connecting shaft 4 to connect the upper and lower frames and the pull plate 3 into a solid whole.
  • the structure of the pull plate can meet the requirements of different transformer short-circuit forces by changing the cross-sectional dimensions of the pull plate 3 and the connecting shaft 4, simplifying the design and the manufacturing process is simple; since the pull plate 3 is placed in the circle of the core, the coils and leads are not considered.
  • the insulation distance between the plates reduces the overall size of the transformer, which can save the total transformer cost by 3-5%; reduces the discharge point of the coil and lead to the ground, optimizes the structure, reduces the cost, improves the productivity and the safety of the transformer operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

本发明公开了一种新型的变压器立体卷铁心拉板结构，包括由三个矩形单框拼合形成的立体卷铁心，所述立体卷铁心包括三个铁心柱以及上铁轭、下铁轭，所述立体卷铁心顶部安装有包围上铁轭的上框架，所述立体卷铁心底部安装有包围上铁轭的下框架，所述铁心柱设置有与上框架、下框架内侧面相对且平行的纵向截面，所述纵向截面的平面上安装有拉板，所述拉板与所述上框架、下框架连接。因拉板放置在铁心截面圆内，所以不用考虑线圈、引线与拉板间的绝缘距离，减小变压器整体尺寸，优化了结构、降低了成本。

Description

一种新型的变压器立体卷铁心拉板结构
技术领域
本发明涉及变压器技术领域，特别是涉及一种变压器立体卷铁心拉板结构。
背景技术
目前，立体卷铁心变压器产品的优势已得到广大用户的肯定，其市场占有率和产品容量越做越大，然而传统立体卷铁心变压器铁心和线圈压紧结构采拉螺杆，或者拉螺杆与拉板混合结构，这两种结构压紧力偏小，且拉螺杆对线圈与引线有绝缘要求，增加了变压器油箱尺寸和制造难度，同时也增加了制造成本。
发明内容
为克服现有技术的不足，本发明的目的在于提供一种能降低成本、提高变压器安全性的变压器立体卷铁心拉板结构。
本发明为解决其技术问题采用的技术方案是：
一种新型的变压器立体卷铁心拉板结构，包括由三个矩形单框拼合形成的立体卷铁心，所述立体卷铁心包括三个铁心柱以及上铁轭、下铁轭，所述立体卷铁心顶部安装有包围上铁轭的上框架，所述立体卷铁心底部安装有包围上铁轭的下框架，所述铁心柱设置有与上框架、下框架内侧面相对且平行的纵向截面，所述纵向截面的平面上安装有拉板，所述拉板与所述上框架、下框架连接。
进一步，所述上框架、下框架设置有定位孔，所述定位孔安装有用于与拉板固定连接的连接轴。
进一步，所述矩形单框由若干根整条硅钢片或非晶合合金带材连续绕制完成。
进一步，所述上框架、下框架包括去角的三角形框架以及连接于三角形框架内侧的Y字形固定架。
本发明的有益效果是：本发明采用的立体卷铁心拉板结构通过改变拉板和连接轴截面尺寸满足不同变压器短路力要求，简化设计方案且制作工艺简单；因拉板放置在铁心截面圆内，所以不用考虑线圈、引线与拉板间的绝缘距离，减小变压器整体尺寸，可节约变压器总成本3-5%；减少了线圈、引线对地放电点，优化了结构、降低了成本、提高了生产率和变压器运行安全性。
附图说明
图1是本发明的主视图；
图2是本发明的俯视图。
具体实施方式
以下结合附图和实例对本发明做进一步说明。
如图1和图2所示，本发明的一种新型的变压器立体卷铁心拉板结构，包括由三个矩形单框拼合形成的立体卷铁心1，所述立体卷铁心1包括三个铁心柱以及上铁轭、下铁轭，所述立体卷铁心1顶部安装有包围上铁轭的上框架2，所述立体卷铁心1底部安装有包围上铁轭的下框架5，所述铁心柱设置有与上框架2、下框架5内侧面相对且平行的纵向截面，所述纵向截面的平面上安装有拉板，所述拉板与所述上框架2、下框架5连接。
所述上框架2、下框架5设置有定位孔，所述定位孔安装有用于与拉板3固定连接的连接轴4，使拉板3与上框架2、下框架5固定相连。
所述矩形单框由若干根整条硅钢片或非晶合合金带材连续绕制完成。
所述上框架2、下框架5包括去角的三角形框架以及连接于三角形框架内侧的Y字形固定架，上框架2、下框架5分别通过Y字形固定架安装在立体卷铁心的顶部和底部。
本发明通过调整铁心片宽度尺寸，在铁心柱截面圆内放置满足变压器抗短路力要求的拉板，拉板3与铁心片间用绝缘材料隔开，再把拉板3与铁心上、下框架的定位孔用连接轴4连接起来，使上、下框架和拉板3连成一个坚固的整体。
这种拉板结构可通过改变拉板3和连接轴4截面尺寸满足不同变压器短路力要求，简化设计方案且制作工艺简单；因拉板3放置在铁心截面圆内，所以不用考虑线圈、引线与拉板间的绝缘距离，减小变压器整体尺寸，可节约变压器总成本3-5%；减少了线圈、引线对地放电点，优化了结构、降低了成本、提高了生产率和变压器运行安全性。
当然，上述说明并非是对本发明的限制，本发明也并不仅限于上述举例，本技术领域的技术人员在本发明的实质范围内所做出的变化、改型、添加或替换，也应属于本发明的保护范围。

Claims (4)

  1. 一种新型的变压器立体卷铁心拉板结构，包括由三个矩形单框拼合形成的立体卷铁心（1），所述立体卷铁心（1）包括三个铁心柱以及上铁轭、下铁轭，其特征在于：所述立体卷铁心（1）顶部安装有包围上铁轭的上框架（2），所述立体卷铁心（1）底部安装有包围上铁轭的下框架（5），所述铁心柱设置有与上框架（2）、下框架（5）内侧面相对且平行的纵向截面，所述纵向截面的平面上安装有拉板（3），所述拉板（3）与所述上框架（2）、下框架（5）连接。
  2. 根据权利要求1所述的一种新型的变压器立体卷铁心拉板结构，其特征在于：所述上框架（2）、下框架（5）设置有定位孔，所述定位孔安装有用于与拉板（3）固定连接的连接轴（4）。
  3. 根据权利要求1所述的一种新型的变压器立体卷铁心拉板结构，其特征在于：所述矩形单框由若干根整条硅钢片或非晶合合金带材连续绕制完成。
  4. 根据权利要求1所述的一种新型的变压器立体卷铁心拉板结构，其特征在于：所述上框架（2）、下框架（5）包括去角的三角形框架以及连接于三角形框架内侧的Y字形固定架。
PCT/CN2017/112731 2017-04-01 2017-11-24 一种新型的变压器立体卷铁心拉板结构 Ceased WO2018176867A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112017005788.4T DE112017005788T5 (de) 2017-04-01 2017-11-24 Neuartige Zugplattenstruktur für einen dreidimensionalen gewickelten Transformerkern
US16/465,587 US11295889B2 (en) 2017-04-01 2017-11-24 Pulling plate structure for a three-dimensional wound core of transformer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201720347345.3U CN206774368U (zh) 2017-04-01 2017-04-01 一种新型的变压器立体卷铁心拉板结构
CN201720347345.3 2017-04-01

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WO2018176867A1 true WO2018176867A1 (zh) 2018-10-04

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US (1) US11295889B2 (zh)
CN (1) CN206774368U (zh)
DE (1) DE112017005788T5 (zh)
WO (1) WO2018176867A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114038665B (zh) * 2021-12-21 2023-03-10 江苏天瑞变压器有限公司 一种变压器铁芯及其绕线放置架

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CN201204118Y (zh) * 2008-06-18 2009-03-04 广东中电华强变压器有限公司 树脂绝缘干式电力变压器
CN203760270U (zh) * 2014-02-27 2014-08-06 常州太平洋电力设备(集团)有限公司 带拉板的立体卷铁芯变压器的铁芯结构
CN203910455U (zh) * 2014-05-20 2014-10-29 江苏华辰变压器有限公司 三柱式干式非晶合金变压器铁芯夹持结构
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CN205428654U (zh) * 2015-09-28 2016-08-03 江苏华辰变压器有限公司 干式变压器拉板绝缘增强结构
CN105575622A (zh) * 2015-12-24 2016-05-11 重庆沈通变压器有限公司 一种干式变压器铁芯装配

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Publication number Priority date Publication date Assignee Title
CN201204118Y (zh) * 2008-06-18 2009-03-04 广东中电华强变压器有限公司 树脂绝缘干式电力变压器
CN203760270U (zh) * 2014-02-27 2014-08-06 常州太平洋电力设备(集团)有限公司 带拉板的立体卷铁芯变压器的铁芯结构
CN203910455U (zh) * 2014-05-20 2014-10-29 江苏华辰变压器有限公司 三柱式干式非晶合金变压器铁芯夹持结构
CN204117781U (zh) * 2014-09-03 2015-01-21 海鸿电气有限公司 一种110kV以上电压等级立体卷铁心变压器夹具

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US11295889B2 (en) 2022-04-05
US20200020476A1 (en) 2020-01-16
DE112017005788T5 (de) 2019-08-14
CN206774368U (zh) 2017-12-19

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