JPS5891608A - Foil winding transformer - Google Patents
Foil winding transformerInfo
- Publication number
- JPS5891608A JPS5891608A JP18927881A JP18927881A JPS5891608A JP S5891608 A JPS5891608 A JP S5891608A JP 18927881 A JP18927881 A JP 18927881A JP 18927881 A JP18927881 A JP 18927881A JP S5891608 A JPS5891608 A JP S5891608A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- pipes
- cooling
- foil
- cooling ducts
- 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
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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
Description
【発明の詳細な説明】
発明の属する技術分野
こO発明ri箔状導体と絶縁シートを重ねて巻回し九コ
イル内に冷却ダクトを内蔵した箔巻変圧器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a foil-wound transformer in which a foil-like conductor and an insulating sheet are wound one on top of the other and a cooling duct is built into the coil.
従来技術とその問題点
箔巻変圧器は、巻装導体の占積率がよいので、線状の導
体を用い喪変圧器と比較し小形拳軽量化を実現できる特
長があるが、よ抄高電圧拳大容量の変圧llK適用する
には、コイルに対する冷却能力を向上させ高い絶縁能力
をコイルにもたせる必要があ砂、仁のためコイル内に冷
媒の流通する冷却ダクトを内蔵させ、コイルの導体から
発生する熱を直接的に冷却するよう構成されている。Conventional technology and its problems Foil-wound transformers have a good space factor for the wrapped conductors, so they have the advantage of being smaller and lighter than transformers that use wire conductors, In order to apply high-capacity voltage transformation, it is necessary to improve the cooling capacity of the coil and provide the coil with high insulation capacity.For this reason, a cooling duct for circulating refrigerant is built into the coil, and the coil conductor is It is designed to directly cool the heat generated by the
この種従来の箔巻変圧器紘、第1図に示すように1鉄心
1の外側に箔状導体2と絶縁シート3を重ねて111回
してコーイル体を構成し、このコイル体嬬低圧コイル4
と高圧コイル5とからなり、これらの各コイル内には環
状の冷却ダクト6が内蔵され−r−hhoこの冷却ダク
ト内には薄い隙間がありフoyR113中FC75とい
っ九冷媒15が満たされており、ポンプ7によシ流し、
箔巻コイル内の発熱を冷媒の蒸発潜熱で奪い、その蒸気
で凝縮器8内で冷水却器9によって冷却して凝縮させる
という方式である。液化した冷媒を冷媒タンク14に貯
め、さらにポンプ7でダクト内に送り込むという冷媒循
環冷却回路がとられる。すなわちこの冷媒循環回路と変
圧器とは分離されている。In this type of conventional foil-wound transformer, as shown in Fig. 1, a foil conductor 2 and an insulating sheet 3 are layered on the outside of an iron core 1 and turned 111 times to form a coil body.
and a high-voltage coil 5, and each of these coils has a built-in annular cooling duct 6. There is a thin gap inside this cooling duct, which is filled with a refrigerant 15 such as FC75 in R113. and drain it through pump 7,
In this method, the heat generated in the foil-wrapped coil is removed by the latent heat of vaporization of the refrigerant, and the resulting vapor is cooled and condensed in the condenser 8 by the chilled water cooler 9. A refrigerant circulation cooling circuit is used in which the liquefied refrigerant is stored in a refrigerant tank 14 and further fed into the duct by a pump 7. That is, the refrigerant circulation circuit and the transformer are separated.
集液管10Uステンレスなどの金属で作られているがそ
れと冷却ダクトを接続するためKは絶縁パイプ11が用
いられ、集液管10はタンク12などのアース電位をと
る。冷却ダクトの電位はコイル内に巻き込まれている関
係上はぼ箔導体と同じ電位に電気的に結合されている。The liquid collection pipe 10U is made of metal such as stainless steel, and an insulated pipe 11 is used to connect it to the cooling duct, and the liquid collection pipe 10 has the ground potential of the tank 12 or the like. The potential of the cooling duct is electrically coupled to the same potential as the foil conductor since it is wound within the coil.
コイルの絶縁はタンク内に封入された絶縁油あるいはS
F6ガスといりた絶縁媒体13で絶縁されている。The coil insulation is done using insulating oil or S sealed in the tank.
It is insulated with an insulating medium 13 such as F6 gas.
なお1第1図において本発明と直接関係のない(、イヤ
。、−4,線やそゎを、72゜外側、引き出すプツシフ
グなど框省略しである0゜
以上説明したように本方式の変圧器は冷却のための冷媒
が流れる循環回路と絶縁のための絶縁媒体13とは完全
に分1111(セパレート)されてbる。In addition, in Fig. 1, the -4, wires and so on, which are not directly related to the present invention, are 72 degrees outside, and the push-pugs and other frames that are pulled out are omitted.As explained above, the transformation of this method The circulation circuit through which the refrigerant for cooling flows and the insulating medium 13 for insulation are completely separated.
仁のことから、この方式の箔巻変圧器を特にここではセ
パレート式箔巻変圧器と呼ぶことにする。For this reason, this type of foil-wound transformer will be referred to here as a separate foil-wound transformer.
11E2HKセパレ一ト式箔巻変圧器の冷却ダクトの従
来例を示す。上記のようなセパレート式箔巻変圧器では
製造及び構造上の問題から1iI、3図に示すような環
状の冷却ダク) 16を用いることはむずかしく第2図
に示すように環状の冷却ダクトを複数側の冷却ダク)6
に分割し、別々の絶縁パイプ11を介して冷却15を流
入、流出させる構成となりている。A conventional example of a cooling duct for a 11E2HK separate foil-wound transformer is shown. In the above-mentioned separate foil-wound transformer, it is difficult to use an annular cooling duct (1iI, 16) as shown in Figure 2 due to manufacturing and structural issues. side cooling duct)6
The cooling 15 is divided into two parts, and the cooling 15 is made to flow in and out through separate insulated pipes 11.
この丸め多数の絶縁パイプ11が必要となるので冷媒循
環回路は複数化し、製造がむずかしい。Since a large number of rounded insulating pipes 11 are required, the refrigerant circulation circuit becomes plural, making manufacturing difficult.
まえ、絶縁Aイブの数を少しでも減らすため冷媒人口1
7.冷媒出口18は、1つの冷却ダクト6 。First, in order to reduce the number of insulation A-bu as much as possible, the refrigerant population is 1.
7. The refrigerant outlet 18 is one cooling duct 6 .
では冷媒ORれが悪<eす1局所的に冷却能力が低下す
るという欠点がありた。However, there was a drawback that the refrigerant OR flow was poor and the cooling capacity was locally reduced.
一方1変圧器が大容量になるとコイルからの発熱嶽が大
きいので冷却ダクト内の冷媒の温度上昇所的に温度が高
くなる。これ1よ絶縁シートの絶縁性能を低下させさら
に変圧器のオーバーヒートを引き起こすので必然的に冷
媒流量の増大、しいてはポンプ動力の増大につながる。On the other hand, when one transformer has a large capacity, the heat generated by the coil is large, so the temperature of the refrigerant in the cooling duct increases. This lowers the insulation performance of the insulation sheet and causes overheating of the transformer, which inevitably leads to an increase in the flow rate of the refrigerant and thus an increase in the pump power.
発明の目的
本発明の目的は上記いくつかの問題点を考慮して冷媒循
環回路を単純化し、その製造が比較的容易である箔巻変
圧器を提供すること、また、冷却ダクト内の流れを均一
化し1局所的忙冷却能力が低下することの少な込箔巻変
圧器を提供すること亭らに比較的簡単な方法で巻線内の
温度差を緩和させ局所的な温度上昇の少ない箔巻変圧器
を提供することである。Purpose of the Invention The purpose of the present invention is to provide a foil-wound transformer that simplifies the refrigerant circulation circuit and is relatively easy to manufacture in consideration of the above-mentioned problems, and also to improve the flow in the cooling duct. 1. To provide a foil-wound transformer with uniform cooling capacity and less reduction in local cooling capacity; It is to provide transformers.
発明の概要
本発明はセパレート式箔巻変圧器において、冷却ダクト
の冷媒入口および冷媒出口を適宜連結させ、冷媒を流す
ことによって前記目的を達成しようとするものである。Summary of the Invention The present invention attempts to achieve the above object in a separate foil-wound transformer by appropriately connecting the refrigerant inlet and refrigerant outlet of a cooling duct and allowing the refrigerant to flow.
発明の効果
本発明によればコイルの局所的な温反上昇を防止できる
。Effects of the Invention According to the present invention, local temperature rises in the coil can be prevented.
発明の実施例 以下5図面を参照して本発明の詳細な説明する0 第5図および第11図に本発明の実施例を小す。Examples of the invention The present invention will be described in detail with reference to the following five drawings. An embodiment of the present invention is illustrated in FIGS. 5 and 11.
第5図および第6図に示す実施例σ、v4接する3個の
冷却ダクト6を連結用絶縁パイプ20によって互いに連
結し、これを2本の絶縁パイプ11を用いて集液管lO
と接続することによって3情の冷却ダク)K並列あるい
は直列に冷媒を流し、たものである。この時、連結用絶
縁パイプ20會よ#!した冷却ダクトどうしを連結する
のでsfLgと冷却ダクトを接続する絶縁パイプ11よ
りもかなり短にて済み、容易に取り付は可能である。Embodiment σ, v4 shown in FIG.
By connecting the three types of cooling ducts), refrigerant can flow in parallel or in series. At this time, 20 connections of insulated pipes #! Since the cooling ducts are connected to each other, it is much shorter than the insulating pipe 11 that connects the sfLg and the cooling duct, and can be easily installed.
このような構造にすれば従来の長い絶縁パイプ11の数
をかなり減少させることができるので。With such a structure, the number of conventional long insulating pipes 11 can be significantly reduced.
冷媒循環回路の構造は非常に単純化し、比較的容易Km
造可能である。The structure of the refrigerant circulation circuit is very simple and relatively easy to install.
It is possible to build
発明の他の実施例
第7図に本発明による他の*一例を示す。本実施例な1
つの冷却ダクト6に複数個の冷媒入口17および複数個
の冷媒出口18を設け、これらをそれぞれ連結用絶縁パ
イプ20で連結し、絶縁パイプ11に、接続したもので
ある。Other Embodiments of the Invention FIG. 7 shows another example according to the present invention. This example 1
A plurality of refrigerant inlets 17 and a plurality of refrigerant outlets 18 are provided in one cooling duct 6, and these are connected by insulating pipes 20 for connection, respectively, and connected to an insulating pipe 11.
このような構造にすれば、冷却ダクト6内全体を冷媒1
5が均一に流れるので局所的に冷却可能が低下する仁と
を防止できる。この時、長い絶縁パイプ11の数が増え
るということはない。With such a structure, the entire inside of the cooling duct 6 is filled with the refrigerant 1.
5 flows uniformly, so that it is possible to prevent localized deterioration of cooling ability. At this time, the number of long insulating pipes 11 does not increase.
第8図に本発明の他の実施例を示す。この実施例扛、冷
却ダクト6内をいくつかの冷媒流路19に細分化し、冷
却ダクト内の冷媒の流れを変化させたものであるが、同
時に複数個の冷媒人口17及び冷媒出口18を設け、こ
れらをそれぞれ連結〆
”□ して、1つの絶縁パイプ11に接続するととによ
りて各冷媒流路19の冷媒の流れを均等化しようとする
ものである。FIG. 8 shows another embodiment of the present invention. In this embodiment, the inside of the cooling duct 6 is subdivided into several refrigerant channels 19 to change the flow of refrigerant in the cooling duct, but at the same time, a plurality of refrigerant ports 17 and refrigerant outlets 18 are provided. , these are connected and connected to one insulating pipe 11, thereby equalizing the flow of refrigerant in each refrigerant flow path 19.
第9図1本発明の他の実施例を示す。この実施例は隣接
する冷却ダク)61連結し、これらの冷却ダクトに直列
に冷媒15を流すことによって隣接する冷却ダクトとと
に冷媒の流れ方向を反対にしたものである。FIG. 9 1 shows another embodiment of the present invention. In this embodiment, adjacent cooling ducts (61) are connected, and the refrigerant 15 is caused to flow through these cooling ducts in series, thereby making the flow direction of the refrigerant opposite to that of the adjacent cooling ducts.
上記2つの装置aAKよる実施例に示すような構造にす
れば比較的簡単な方法で巻線内の局所的な温度上昇を防
止することができ、同時に冷媒循環回路を単純化するこ
とが可能である。With the structure shown in the embodiment using the above two devices aAK, it is possible to prevent a local temperature rise in the winding in a relatively simple manner, and at the same time it is possible to simplify the refrigerant circulation circuit. be.
以上説明したように本発明による箔巻変圧器を用いれば
次のような種々の効果を得ることができる0
(1)長い絶縁パイプの数を大幅に減少させることがで
きるので、冷媒循環回路は単純化し、その製造を害鳥に
することができる。As explained above, by using the foil-wound transformer according to the present invention, the following various effects can be obtained. (1) Since the number of long insulated pipes can be significantly reduced, the refrigerant circulation circuit can be Simplify and its manufacture can be a pest.
(2)絶縁パイプの数を増やすことなく、冷却ダクト内
の流れを均一化し1局所的な冷却能力の低下を防止する
仁とができる。(2) It is possible to equalize the flow in the cooling duct and prevent a local decrease in cooling capacity without increasing the number of insulated pipes.
(3)比較的簡単な方法で巻巌内の温度差を緩和させ、
局所的な温度上昇を防ぐことが可能となる0なお、本発
明による実施例をいくつか示したがこれらを組み合わせ
ることによって、複数の効果を同時に得ることができる
。(3) Reducing the temperature difference within the spool using a relatively simple method,
Although several embodiments of the present invention have been shown, a plurality of effects can be obtained simultaneously by combining them.
第1図に従来の箔巻変圧器の一例を示す概略図シ菖2図
、第3図は従来の冷却ダクトの一例を示す概略図、第4
図は従来の箔巻変圧器における冷媒及び巻線内の軸方向
温度分布を示す概略図、整\嶌\亀龜倒へ亀li第5図
ないし第9図れ本発明の実施例を示す図である。
箔状導体・・・2.絶縁シート・・・3.低圧巻線・・
・4高圧巻線・・5.冷却ダクト・・・6.冷媒入口・
・・17冷媒出口・・・18゜
代理人 弁理士 則 近 齋 佑
(はか1名)
第 1 図
第3図
第4図
第5図
第6図 第7図
第8図Figure 1 is a schematic diagram showing an example of a conventional foil-wound transformer; Figure 2 is a schematic diagram showing an example of a conventional cooling duct;
The figures are schematic diagrams showing the axial temperature distribution in the refrigerant and windings in a conventional foil-wound transformer, and Figures 5 to 9 are diagrams showing embodiments of the present invention. be. Foil conductor...2. Insulating sheet...3. Low voltage winding...
・4 high voltage windings...5. Cooling duct...6. Refrigerant inlet/
...17 Refrigerant outlet...18゜Representative Patent attorney Yu Chikasai (1 person) Fig. 1 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8
Claims (3)
冷却ダクトを内蔵させ、前記冷却ダクト内に冷媒を流す
ことKよって前記コイルを冷却させるよう構成した箔巻
変圧器において、前記複数の冷却ダクトの冷媒入口どう
し、あるいは冷媒出口どうし、あるいは冷媒入口と冷媒
出口を互いに連結させて構成したことを特徴とする箔巻
変圧器。(1) A foil-wound transformer configured to have a plurality of cooling ducts built into a coil formed by stacking a foil conductor and an insulating sheet, and to cool the coils by flowing a refrigerant into the cooling ducts. A foil-wound transformer characterized in that the refrigerant inlets of the cooling duct, the refrigerant outlets, or the refrigerant inlet and the refrigerant outlet are connected to each other.
冷却ダクトに冷媒を直列あるいは並列に流すよう構成し
たことを特徴とする特許請求の範囲第1項に記載の箔巻
変圧器。(2) A foil-wound transformer according to claim 1, characterized in that a plurality of cooling ducts are connected to each other by 1hK, and the refrigerant is caused to flow through these cooling ducts in series or in parallel.
けた1つの冷却ダク)において前記冷媒入口どうしある
いに前記冷媒出口どうし%あるいは前記冷媒入口と前記
冷媒出口を互いに連結させて。 この冷却ダクトに冷媒を流すよう構成したことを ゛特
徴とする特許請求の範囲第1項に記載の箔巻変圧器0(3) In one cooling duct having a plurality of refrigerant inlets or a plurality of refrigerant outlets, the refrigerant inlets or the refrigerant outlets or the refrigerant inlet and the refrigerant outlet are connected to each other. hand. The foil-wound transformer 0 according to claim 1, characterized in that the cooling duct is configured to flow a refrigerant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18927881A JPS5891608A (en) | 1981-11-27 | 1981-11-27 | Foil winding transformer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18927881A JPS5891608A (en) | 1981-11-27 | 1981-11-27 | Foil winding transformer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5891608A true JPS5891608A (en) | 1983-05-31 |
Family
ID=16238634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18927881A Pending JPS5891608A (en) | 1981-11-27 | 1981-11-27 | Foil winding transformer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5891608A (en) |
-
1981
- 1981-11-27 JP JP18927881A patent/JPS5891608A/en active Pending
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