WO2018176869A1 - 一种新型的变压器立体卷铁心低压引线结构 - Google Patents

一种新型的变压器立体卷铁心低压引线结构 Download PDF

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Publication number
WO2018176869A1
WO2018176869A1 PCT/CN2017/112733 CN2017112733W WO2018176869A1 WO 2018176869 A1 WO2018176869 A1 WO 2018176869A1 CN 2017112733 W CN2017112733 W CN 2017112733W WO 2018176869 A1 WO2018176869 A1 WO 2018176869A1
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Prior art keywords
low
voltage
phase
lead
coil
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PCT/CN2017/112733
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English (en)
French (fr)
Inventor
许凯旋
翟丽珍
梁庆宁
罗景桃
周利波
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海鸿电气有限公司
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Application filed by 海鸿电气有限公司 filed Critical 海鸿电气有限公司
Priority to DE112017005787.6T priority Critical patent/DE112017005787T5/de
Publication of WO2018176869A1 publication Critical patent/WO2018176869A1/zh
Priority to US16/439,320 priority patent/US11315722B2/en

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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
    • H01F27/25—Magnetic cores made from strips or ribbons
    • 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
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/12—Two-phase, three-phase or polyphase transformers

Definitions

  • the invention relates to the technical field of transformers, in particular to a transformer three-dimensional winding core low-voltage lead structure.
  • the three-dimensional coil core transformer products have been favored by more and more customers.
  • the advantages of high efficiency and energy saving have long been known, and the market share is getting larger and larger.
  • the low-voltage leads of the three-phase coil of the traditional three-dimensional coil core transformer products The heads are all led out on the outside of the body.
  • one or two-phase leads In order to connect the three-phase low-voltage leads into different connection groups, one or two-phase leads must bypass the other coils, increasing the lead length and wiring difficulty, occupying a large space, which is invisible.
  • the transformer manufacturing difficulty and material cost are increased, and the problem that the phase and line resistance irregularity exceeds the standard due to the difference in the length of each phase lead often occurs.
  • a novel three-dimensional winding core low-voltage lead structure comprises a three-dimensional winding core formed by three rectangular single frames, and a three-phase coil, wherein the three-dimensional winding core comprises three core columns and an upper iron yoke and a lower iron yoke.
  • the upper iron yoke and the lower iron yoke of the three-dimensional winding core are respectively triangular structures, and the three-phase coils are correspondingly arranged on three core columns, each phase coil includes an inner low voltage coil and an outer high voltage coil, and the first end of each phase low voltage coil Leading wires are respectively connected to the tail ends, and the leading ends of the low-voltage coils of each phase are located in the triangular structure region of the upper iron yoke and the lower iron yoke; and the low-voltage casing rising seat is arranged above the three-dimensional winding core.
  • the low-voltage bushing riser is provided with three low-pressure bushings, and the three low-voltage bushings are connected with the lead wires of the corresponding low-voltage coils.
  • the low pressure bushing riser is located in the triangular structure area of the upper yoke.
  • the three low pressure bushings are arranged in a straight line.
  • leading end lead-out line of the three-phase low-voltage coil and the tail end lead-out line of the three-phase low-voltage coil are respectively arranged in a triangle shape.
  • leading end lead wires of the three-phase low voltage coil are disposed at three corner positions formed by the upper iron yoke; the tail end lead wires of the three-phase low voltage coil are disposed at internal positions of the three-phase coil.
  • the invention has the beneficial effects that: by adjusting the position of the lead wire of the low-voltage coil and the lead insulation structure, the lead wire and the tail of the low-voltage coil are concentrated in the triangular region of the iron core and the lower yoke portion, thereby facilitating various kinds of head and tail of each coil.
  • the connection and the low-voltage bushing riser are also designed on the triangular area of the yoke of the core.
  • the distance between the lead and the sleeve is very short, and the lead is fixed by only a few clamping members or directly connected to the sleeve conductive rod.
  • the lead length of each phase is very close, and the resistance unevenness caused by the different lead lengths will be completely solved, and the transformer accident caused by the lead failure is greatly reduced, and the reliability of the product is increased.
  • Figure 1 is a schematic view of the structure of the present invention.
  • a novel transformer three-dimensional core low-voltage lead structure of the present invention comprises a three-dimensional rolled core 1 and a three-phase coil formed by three rectangular single frames, and the three-dimensional core 1 includes three hearts. a column and an upper iron yoke and a lower iron yoke, wherein the upper iron yoke and the lower iron yoke of the three-dimensional winding core are respectively triangular structures, and the three-phase coils are correspondingly disposed on the three core columns, and each phase coil includes an inner low voltage coil 3 And the external high-voltage coil, the leading end and the trailing end of the low-voltage coil 3 of each phase are respectively connected with the lead wire 2, and the leading end 2 of the low-voltage coil 3 of each phase and the leading end 2 of the tail end are located in the triangular structure region of the upper iron yoke and the lower iron yoke.
  • the three-dimensional coil core 1 is provided with a low-voltage bushing riser 4, and the low-pressure bushing riser 4 is provided with three low-pressure bushings, and the three low-voltage bushings are connected with the corresponding low-voltage coil lead wires 2.
  • the low pressure bushing riser 4 is located within the triangular structure area of the upper yoke; and the three low pressure bushings are arranged in a straight line.
  • leading end lead wires (a, b, c) of the three-phase low voltage coil 3 and the tail end lead wires (x, y, z) of the three-phase low voltage coil 3 are respectively arranged in a triangular shape.
  • the first end lead wires (a, b, c) of the three-phase low voltage coil 3 are disposed at three corner positions formed by the upper iron yoke; the tail end lead wires (x, y, z) of the three-phase low voltage coil 3 are set at three The internal position of the phase coil.

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

Abstract

一种变压器立体卷铁心低压引线结构，包括由三个矩形单框拼合形成的立体卷铁心（1）、三相线圈，所述立体卷铁心（1）包括三个心柱以及上铁轭、下铁轭，所述立体卷铁心（1）的上铁轭、下铁轭分别为三角形结构，三相线圈对应设置于三个心柱上，每相线圈均包括内部的低压线圈（3）和外部高压线圈，每相低压线圈（3）的首端和尾端分别连接有引出线（2），并且每相低压线圈（3）首端、尾端的引出线（2）均位于上铁轭、下铁轭的三角形结构区域内；所述立体卷铁心（1）上方设置有低压套管升高座（4），所述低压套管升高座（4）上设置有三个低压套管，三个低压套管与对应的低压线圈（3）的引出线（2）相连。本结构解决了引线因每相长度不等而出现的电阻不平衡及引线损耗过高等问题。

Description

一种新型的变压器立体卷铁心低压引线结构
技术领域
本发明变压器技术领域，特别是涉及一种变压器立体卷铁心低压引线结构。
背景技术
目前，立体卷铁心变压器产品已经得到越来越多客户的青睐，其高效、节能的优点早已被人们熟知，市场占有率越来越大，然而传统立体卷铁心变压器产品的三相线圈的低压引线出头都在器身外侧引出，为使三相低压引线联结成不同的连接组别，其中一相或两相的引线必须绕过其它线圈，增加了引线长度和布线难度，占用空间大，这无形中增加了变压器制造难度和材料成本，并且常常出现由于每相引线长度不同引起的相、线电阻不平率超标等问题。
发明内容
本发明的目的在于提供一种变压器立体卷铁心低压引线结构，以解决引线因每相长度不等而出现的电阻不平衡及引线损耗过高等问题。
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低压引线结构，包括由三个矩形单框拼合形成的立体卷铁心、三相线圈，所述立体卷铁心包括三个心柱以及上铁轭、下铁轭，所述立体卷铁心的上铁轭、下铁轭分别为三角形结构，三相线圈对应设置于三个心柱上，每相线圈均包括内部的低压线圈和外部高压线圈，每相低压线圈的首端和尾端分别连接有引出线，并且每相低压线圈首端、尾端的引出线均位于上铁轭、下铁轭的三角形结构区域内；所述立体卷铁心上方设置有低压套管升高座，所述低压套管升高座上设置有三个低压套管，三个低压套管与对应的低压线圈的引出线相连。
进一步，所述低压套管升高座位于上铁轭三角形结构区域内。
进一步，三个低压套管呈一直线排布。
进一步，三相低压线圈的首端引出线和三相低压线圈的尾端引出线分别呈三角形布置。
进一步，三相低压线圈的首端引出线设置于上铁轭形成的三个角部位置；三相低压线圈的尾端引出线设置于三相线圈内部位置。
本发明的有益效果是：本发明通过调整低压线圈的引出线位置和引线绝缘结构，使低压线圈的引出线头、尾集中在铁心上、下轭部三角形区域内，方便各线圈头尾的各种连接，并且低压套管升高座也设计在铁心上轭部三角形区域上，引线到套管间距离很短，引线固定只需用很少夹持件或直接与套管导电杆连接。此外，每相引线长度非常接近，由引线长度不同而引起的电阻不平率将彻底解决，同时极大的减少了由引线故障引起的变压器事故，增加了产品的可靠性。
附图说明
图1是本发明的结构示意图。
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所示，本发明的一种新型的变压器立体卷铁心低压引线结构，包括由三个矩形单框拼合形成的立体卷铁心1、三相线圈，所述立体卷铁心1包括三个心柱以及上铁轭、下铁轭，所述立体卷铁心的上铁轭、下铁轭分别为三角形结构，三相线圈对应设置于三个心柱上，每相线圈均包括内部的低压线圈3和外部高压线圈，每相低压线圈3的首端和尾端分别连接有引出线2，并且每相低压线圈3首端、尾端的引出线2均位于上铁轭、下铁轭的三角形结构区域内；所述立体卷铁心1上设置有低压套管升高座4，所述低压套管升高座4上设置有三个低压套管，三个低压套管与对应的低压线圈的引出线2相连。
所述低压套管升高座4位于上铁轭三角形结构区域内；并且三个低压套管呈一直线排布。
三相低压线圈3的首端引出线（a、b、c）和三相低压线圈3的尾端引出线（x、y、z）分别呈三角形布置。
三相低压线圈3的首端引出线（a、b、c）设置于上铁轭形成的三个角部位置；三相低压线圈3的尾端引出线（x、y、z）设置于三相线圈内部位置。
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 (5)

  1. 一种新型的变压器立体卷铁心低压引线结构，包括由三个矩形单框拼合形成的立体卷铁心（1）、三相线圈，所述立体卷铁心（1）包括三个心柱以及上铁轭、下铁轭，所述立体卷铁心的上铁轭、下铁轭分别为三角形结构，三相线圈对应设置于三个心柱上，每相线圈均包括内部的低压线圈（3）和外部高压线圈，其特征在于：每相低压线圈（3）的首端和尾端分别连接有引出线（2），并且每相低压线圈（3）首端、尾端的引出线（2）均位于上铁轭、下铁轭的三角形结构区域内；所述立体卷铁心（1）上设置有低压套管升高座（4），所述低压套管升高座（4）上设置有三个低压套管，三个低压套管与对应的低压线圈的引出线（2）相连。
  2. 根据权利要求1所述的一种新型的变压器立体卷铁心低压引线结构，其特征在于：所述低压套管升高座（4）位于上铁轭三角形结构区域内。
  3. 根据权利要求1所述的一种新型的变压器立体卷铁心低压引线结构，其特征在于：三个低压套管呈一直线排布。
  4. 根据权利要求1所述的一种新型的变压器立体卷铁心低压引线结构，其特征在于：三相低压线圈（3）的首端引出线和三相低压线圈（3）的尾端引出线分别呈三角形布置。
  5. 根据权利要求1所述的一种新型的变压器立体卷铁心低压引线结构，其特征在于：三相低压线圈（3）的首端引出线设置于上铁轭形成的三个角部位置；三相低压线圈（3）的尾端引出线设置于三相线圈内部位置。
PCT/CN2017/112733 2017-04-01 2017-11-24 一种新型的变压器立体卷铁心低压引线结构 WO2018176869A1 (zh)

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DE112017005787.6T DE112017005787T5 (de) 2017-04-01 2017-11-24 Neuartige Niederspannungs-Anschlussdrahtstruktur für einen dreidimensionalen gewickelten Transformatorkern
US16/439,320 US11315722B2 (en) 2017-04-01 2019-06-12 Low-voltage lead structure for three-dimensional wound core of transformer

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CN201720347268.1U CN206672769U (zh) 2017-04-01 2017-04-01 一种新型的变压器立体卷铁心低压引线结构
CN201720347268.1 2017-04-01

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US11315722B2 (en) 2022-04-26
US20190295766A1 (en) 2019-09-26
CN206672769U (zh) 2017-11-24

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