JPH0225009A - Foil-wound transformer - Google Patents
Foil-wound transformerInfo
- Publication number
- JPH0225009A JPH0225009A JP17390388A JP17390388A JPH0225009A JP H0225009 A JPH0225009 A JP H0225009A JP 17390388 A JP17390388 A JP 17390388A JP 17390388 A JP17390388 A JP 17390388A JP H0225009 A JPH0225009 A JP H0225009A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- foil
- wound transformer
- cooling panel
- windings
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims abstract description 55
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 239000012212 insulator Substances 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 11
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000000945 filler Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 229910018503 SF6 Inorganic materials 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- FYJQJMIEZVMYSD-UHFFFAOYSA-N perfluoro-2-butyltetrahydrofuran Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C1(F)OC(F)(F)C(F)(F)C1(F)F FYJQJMIEZVMYSD-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、金属シートと絶縁シートを重ねて巻回した巻
線内に、冷却ダクトを内蔵した箔巻変圧器に関するもの
である。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a foil-wound transformer in which a cooling duct is built into a winding formed by overlapping metal sheets and insulating sheets. It is.
（従来の技術）
鉄心脚の周囲に金属シートと絶縁シートとを重ねて巻回
して箔状巻線を構成した箔巻変圧器は、巻線導体の占積
率が良いので、通常の平角線状の導体を用いた変圧器と
比較して小形・軽量化に適した特徴を有している。(Prior art) A foil-wound transformer, which has a foil winding formed by overlapping metal sheets and insulating sheets around the core leg, has a good space factor for the winding conductor, so it can be used instead of ordinary rectangular wire. It has the characteristics of being smaller and lighter than transformers using shaped conductors.
しかし、より高電圧・大容量の変圧器を実現させるため
には、巻線に対する冷却能率を更に向上させ、かつ高い
絶縁能力を巻線に持たせることが不可欠となっており、
このため巻線内に冷媒の流通する冷却パネルを内蔵させ
、巻線から発生する熱を直接的に冷却するように構成す
ることが考えられている。However, in order to realize higher-voltage, larger-capacity transformers, it is essential to further improve the cooling efficiency of the windings and provide the windings with high insulation capacity.
For this reason, it has been considered to incorporate a cooling panel in which a refrigerant flows within the winding to directly cool the heat generated from the winding.
この種の変圧器としては、例えば特開昭５４−１６８６
１３号公報が知られている。この変圧器は、例えば第４
図に示すように、鉄心脚１の周囲に金属シート２と絶縁
シート３とを重ねて巻回して巻線を構成したものである
。この巻線は、低圧巻線４と高圧巻線５とからなり、こ
れらの各巻線内には環状の冷却パネル６が内蔵されてい
る。As this type of transformer, for example, Japanese Patent Application Laid-Open No. 54-1686
No. 13 is known. This transformer is, for example, the fourth
As shown in the figure, a metal sheet 2 and an insulating sheet 3 are layered and wound around a core leg 1 to form a winding. This winding consists of a low voltage winding 4 and a high voltage winding 5, and an annular cooling panel 6 is built in each of these windings.
冷却パネル６は、冷媒が流れるための狭い隙間を取って
重ねた２枚の金属板の周辺が溶接等で封じられたもので
ある。この冷却パネル６の隙間に、フロントＲ−１１３
やフロリナートＦＣ−７５等の冷媒をポンプ７で常時流
し込み、冷媒に箔巻巻線内で発生した熱を奪い取らせる
ことで冷却が行なわれている。熱を吸収した冷媒は、巻
線外部へ送り出され、タンク８外部に設けた冷却器９内
で冷却され再度冷却パネル６内へ送り込まれる。なお、
冷媒は、冷却パネル６に送り込まれる前に一旦果液管１
０に集められるが、この集液管１０はタンク８等と同電
位のアース電位を保持しているため、金属シート２と同
電位を有する冷却パネル６との接続は、絶縁パイプ１１
を介して行なわれている。The cooling panel 6 is made of two metal plates stacked one on top of the other with a narrow gap for the coolant to flow, and the periphery of the two metal plates is sealed by welding or the like. In the gap between this cooling panel 6, insert the front R-113
Cooling is performed by constantly flowing a refrigerant such as or Fluorinert FC-75 with a pump 7 and allowing the refrigerant to remove the heat generated within the foil winding. The refrigerant that has absorbed the heat is sent out to the outside of the winding, cooled in a cooler 9 provided outside the tank 8, and sent into the cooling panel 6 again. In addition,
The refrigerant passes through the fruit pipe 1 before being sent to the cooling panel 6.
However, since this liquid collecting pipe 10 holds the same ground potential as the tank 8 etc., the connection between the metal sheet 2 and the cooling panel 6 having the same potential is made through the insulating pipe 11.
It is done through.
冷却パネル６は、金属シート２を熱伝導により冷却し、
同時に冷却パネル６の電位を取るために、第３図、第４
図に示すように冷却パネル６の外側が金属シート２と接
し内側が絶縁シート３と接するよう巻回されている。更
に、冷却パネル６が巻線内に巻き込まれている関係上、
冷却パネル６にもほぼ同電位が印加され、この金属シー
ト２ヤ冷却パネルと外部との絶縁は、タンク８内に封入
された絶縁用の例えば六フッ化イオウ（ＳＦ６ガス）等
の絶縁ガスによってなされる。The cooling panel 6 cools the metal sheet 2 by thermal conduction,
At the same time, in order to obtain the potential of the cooling panel 6,
As shown in the figure, the cooling panel 6 is wound so that the outside is in contact with the metal sheet 2 and the inside is in contact with the insulating sheet 3. Furthermore, since the cooling panel 6 is wrapped in the winding,
Almost the same potential is also applied to the cooling panel 6, and insulation between the metal sheet 2 and the cooling panel and the outside is achieved by an insulating gas such as sulfur hexafluoride (SF6 gas) sealed in the tank 8. It will be done.
以上説明した箔巻変圧器は、従来の平角線状の導体を用
いた変圧器に比較し、大幅な小形・軽量化が可能で、絶
縁信頼性が高い等の利点を有している。The foil-wound transformer described above has advantages over conventional transformers using rectangular wire-shaped conductors, such as being able to be significantly smaller and lighter, and having higher insulation reliability.
（発明が解決しようとする課題）
ところで、この種の箔巻変圧器において、巻線は製作時
の巻付力および巻線間の絶縁物によって、巻線が鉄心の
脚部に締付けられて半径方向の支持がされている。また
軸方向は、巻線支持絶縁物により支持されている。(Problem to be Solved by the Invention) By the way, in this type of foil-wound transformer, the windings are tightened to the legs of the iron core due to the winding force during manufacturing and the insulation between the windings, and the radius Directional support is provided. Further, the axial direction is supported by a winding support insulator.
しかし、巻付力のみによって支持しているだけでは、巻
線の円周方向の固定が不十分な為輸送時や振動により、
巻線が回転し、接続リード線の変形、ひいては口出し圧
接部がはがれて、絶縁破壊を起こすおそれがある。However, if the winding is supported only by winding force, the circumferential direction of the winding is insufficiently fixed, so it may be damaged during transportation or due to vibration.
The winding rotates, deforming the connecting lead wire, and eventually peeling off the lead pressure welding part, which may cause dielectric breakdown.
本発明の目的は、上記のような従来の箔巻変圧器の欠点
を解消するために提案されたもので、その目的は、輸送
時や地撮の振動等による巻線の回転を防止し、信頼性の
高い箔巻変圧器を提供することにおる。The purpose of the present invention was proposed to eliminate the drawbacks of the conventional foil-wound transformer as described above.The purpose of the present invention is to prevent rotation of the winding due to vibrations during transportation or ground photography, Our goal is to provide highly reliable foil-wound transformers.
（発明の構成）
（課題を解決するための手段）
本発明の箔巻変圧器は、冷却パネルの上下端部詰物を巻
線支持絶縁物と係合することにより、安定した巻線の円
周方向支持構造を得て絶縁信頼性の高い箔巻変圧器を提
供することにおる。(Structure of the Invention) (Means for Solving the Problem) The foil-wound transformer of the present invention has a stable winding circumference by engaging the upper and lower end fillings of the cooling panel with the winding support insulator. The object of the present invention is to provide a foil-wound transformer with a directional support structure and high insulation reliability.
（実施例）
以下、本発明の一実施例を第１図から第３図参照して説
明する。なお、状来型と同一部分については、同一符号
を付して説明を省略する。(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3. Note that the same parts as in the current type are given the same reference numerals and explanations are omitted.
第１図の横断面図において、巻線内に配置されている冷
却パネル６の上下端部詰物１３を絶縁シート３の端部よ
り突出するように形成されている。In the cross-sectional view of FIG. 1, the upper and lower end fillers 13 of the cooling panel 6 disposed within the winding are formed to protrude from the ends of the insulating sheet 3.
そして、第２図の矢視図のように詰物１２は円周方向に
複数の仄欠部を有しこの込欠部と巻線上下端の巻線支持
絶縁物１３が第３図に示すごとく係合し巻線が支持され
ている。As shown in the arrow view of FIG. 2, the filler 12 has a plurality of notches in the circumferential direction, and these notches and the winding support insulators 13 at the upper and lower ends of the winding engage as shown in FIG. A dowel winding is supported.
このように構成された本実施例の箔巻変圧器においては
、巻線の冷却パネル６の上下端部詰物１２と巻線支持絶
縁物１３とが係合して、それぞれの相対位置がずれない
ように結合しているので巻線の円周方向の固定がより強
固で安定したものとなる。In the foil-wound transformer of this embodiment configured in this way, the upper and lower end fillings 12 of the winding cooling panel 6 and the winding support insulator 13 engage with each other, so that their relative positions do not shift. Since the windings are connected in this way, the circumferential fixation of the windings becomes stronger and more stable.
このように、巻線内の冷却パネル６の上下端詰物１３が
係合されたことにより、巻線の円周方向の固定が強固と
なり、輸送時や地撮の振動による巻線の回転、また、接
続リード線の変形、口出し圧接部のはがれが防げ、絶縁
信頼性の向上を計ることができる。In this way, by engaging the upper and lower end fillers 13 of the cooling panel 6 inside the winding, the circumferential direction of the winding is firmly fixed, and rotation of the winding due to vibration during transportation or ground photography, and This prevents deformation of the connecting lead wire and peeling of the pressure welding part, and improves insulation reliability.
（発明の効果）
以上の通り、本発明によれば輸送時ヤ地撮の振動による
巻線の回転防止が計れ安定した巻線支持構造を有する信
頼性の高い箔巻変圧器を提供できる。(Effects of the Invention) As described above, according to the present invention, it is possible to provide a highly reliable foil-wound transformer having a stable winding support structure that prevents the winding from rotating due to vibrations caused by ground photography during transportation.
第１図は本発明の箔巻変圧器の一実施例を示す冷却パネ
ル端部の拡大断面図、第２図は第１図の詰物の構造を示
す斜示図、第３図は同要部拡大図、第４図は状来の箔巻
変圧器の構造を示す断面図である。
１・・・鉄心脚
３・・・絶縁シート
５・・・高圧巻線
７・・・ポンプ
９・・・冷却器
１１・・・絶縁パイプ
１３・・・巻線支持絶縁物
２・・・金属シート
４・・・低圧巻線
６・・・冷却パネル
８・・・タンク
１０・・・集液管
１２・・・詰物
代理人 弁理士 則 近 憲 侑
同 第子丸 健Fig. 1 is an enlarged sectional view of the end of a cooling panel showing one embodiment of the foil-wound transformer of the present invention, Fig. 2 is a perspective view showing the structure of the filling shown in Fig. 1, and Fig. 3 is the same essential part. The enlarged view, FIG. 4, is a sectional view showing the structure of a conventional foil-wound transformer. 1... Iron core leg 3... Insulating sheet 5... High voltage winding 7... Pump 9... Cooler 11... Insulating pipe 13... Winding support insulator 2... Metal Sheet 4...Low voltage winding 6...Cooling panel 8...Tank 10...Liquid collection pipe 12...Filling agent Patent attorney Norihiro Ken Yudo Ken Daishimaru
Claims (1)
て成る低圧および高圧巻線を形成し、巻線内に冷却パネ
ルを配置し、絶縁媒体を封入したタンク内に納めてなる
箔巻変圧器において、冷却パネルの上、下端部詰物を絶
縁シートより突出して低圧および高圧巻線上、下端部の
巻線支持絶縁物と係合させたことを特徴とする箔巻変圧
器。A foil-wound transformer in which a low-voltage and high-voltage winding is formed by overlapping and winding a sheet conductor and a sheet insulator around an iron core, a cooling panel is placed inside the winding, and the coil is housed in a tank filled with an insulating medium. 1. A foil-wound transformer, characterized in that the fillings at the upper and lower ends of the cooling panel protrude from the insulating sheet and engage with the winding support insulators at the upper and lower ends of the low-voltage and high-voltage windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17390388A JPH0225009A (en) | 1988-07-14 | 1988-07-14 | Foil-wound transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17390388A JPH0225009A (en) | 1988-07-14 | 1988-07-14 | Foil-wound transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0225009A true JPH0225009A (en) | 1990-01-26 |
Family
ID=15969220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17390388A Pending JPH0225009A (en) | 1988-07-14 | 1988-07-14 | Foil-wound transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0225009A (en) |
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