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JPH01231305A - Foil-wound transformer - Google Patents

Foil-wound transformer

Info

Publication number
JPH01231305A
JPH01231305A JP5610488A JP5610488A JPH01231305A JP H01231305 A JPH01231305 A JP H01231305A JP 5610488 A JP5610488 A JP 5610488A JP 5610488 A JP5610488 A JP 5610488A JP H01231305 A JPH01231305 A JP H01231305A
Authority
JP
Japan
Prior art keywords
foil
coil
inner cylinder
wound transformer
metal foil
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
Application number
JP5610488A
Other languages
Japanese (ja)
Inventor
Haruyuki Yamazaki
晴幸 山崎
Takeshi Sakamoto
坂元 健
Kiyoto Hiraishi
平石 清登
Keizaburo Kawashima
川嶋 啓三郎
Tatsu Saito
斉藤 達
Kaoru Endo
馨 遠藤
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5610488A priority Critical patent/JPH01231305A/en
Publication of JPH01231305A publication Critical patent/JPH01231305A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prevent a coil of each stage, from slipping down, and to dispense coil loads to respective stages by providing the irregularities of the same shape to the outer circumferential section of an inner cylinder and the inner circumferential section of an outer cylinder. CONSTITUTION:The irregularities of lower inclined sections 5, upper inclined section 6 and parallel sections 7 are shaped to an inner cylinder 2 and an outer cylinder 3, and the irregularities are connected in the circumferential direction. A cooling duct 4 cools a coil 1 while being used as a member holding and fixing the coil 1. When metallic foils 8 intend to slide and fall, compressive force works in the circumferential direction, and the lower ends of the metallic foils 8 are deformed undulatingly when the metallic foils further slide and fall, thus preventing deformation between a narrow section between insulating sheets 9 so far as extremely large load is applied from an upper section. Accordingly, since the inner cylinder is also tilted to the inside, not only the metallic foil 8 on the outside but also the metallic foil 8 near the inner cylinder are not slid and brought down. Likewise, the upper inclined section 6 obviates the upward displacement of the metallic foils 8.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は箔巻変圧器に係り、特に、コイル支持に好適な
構造に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a foil-wound transformer, and particularly to a structure suitable for supporting a coil.

(従来の技術〕 従来の装には、特開昭60−261115号公報に記載
のように、内側の円筒と、端部に内周側へ突出した係止
部を設けたダクトピースとでコイルをはさみつける構造
となっていた。
(Prior art) As described in Japanese Patent Application Laid-open No. 60-261115, a conventional device has a coil made of an inner cylinder and a duct piece with a locking part protruding toward the inner circumference at the end. It had a structure in which it was held in place.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記従来技術は内側の円筒にはコイルの滑落防止の点に
ついて考慮がされておらず、内側のコイルが滑落する問
題があった。また、上・下方向に複数段のコイルを組み
合わせる点について考慮されておらず、最下段のコイル
下端に全コイル荷重が加わり、端部変形の問題があった
In the above-mentioned prior art, no consideration was given to preventing the coil from slipping off the inner cylinder, and there was a problem that the inner coil might slip off. Furthermore, no consideration was given to the combination of multiple stages of coils in the upward and downward directions, and the entire coil load was applied to the lower end of the lowest stage coil, resulting in the problem of end deformation.

本発明の目的は、各段のコイルが滑落することなく、ま
た、コイル荷重を各段に分散させ得る箔巻変圧器を提供
することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a foil-wound transformer that prevents the coils in each stage from slipping down and can distribute the coil load among the stages.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的は、内筒と外筒(あるいは周方向に分割したも
の)とに、半径が変わる傾斜(絞り)を同一方向に一個
または複数個設け、金属箔と絶縁シートとを両者の平行
部(半径−走部)で、金属箔からはずれる絶縁シートを
両者の傾斜部ではさみ付けることにより達成される。
The above purpose is to provide one or more inclinations (diaphragms) with varying radii in the same direction on the inner cylinder and the outer cylinder (or those divided in the circumferential direction), and to attach the metal foil and the insulating sheet to the parallel parts ( This is achieved by sandwiching the insulating sheet, which separates from the metal foil, between the inclined parts of the two.

〔作用〕[Effect]

内筒の下部傾斜部は外筒の下部傾斜部と対になって1次
のような作用をする。
The lower sloped part of the inner cylinder is paired with the lower sloped part of the outer cylinder to perform a linear action.

(1)、内筒と外筒の下部傾斜部の角度を同一(共に内
側に傾斜)にすれば、両者の隙間は平行部より下部傾斜
部が小さく、また、下部傾斜部の隙間間隔は一定になる
ので、傾斜部全面で絶縁シートをはさみ付けることがで
きる。従って、金属箔が絶縁シートの間に滑落しづらい
(1) If the angles of the lower slopes of the inner cylinder and outer cylinder are the same (both slope inward), the gap between the two will be smaller at the lower slope than the parallel part, and the gap between the lower slopes will be constant. Therefore, the insulating sheet can be sandwiched over the entire slope. Therefore, it is difficult for the metal foil to slip between the insulating sheets.

(2)、下部傾斜部は平行部より半径が小さくなるので
、金属箔が滑落しようとすれば周方向に圧縮力が作用し
、これを防ごうとする。更に、滑落する場合は金属箔の
下端が波状に変形するので、上から非常に大きな荷重を
与えなければ、狭い絶縁シート間で変形できない。従っ
て、内筒の下端を内側に傾斜させることによって、外側
の金属箔ばかりでなく、内筒付近の金属箔の滑落を防止
できる。
(2) Since the radius of the lower inclined portion is smaller than that of the parallel portion, if the metal foil tries to slide off, a compressive force acts in the circumferential direction to prevent this. Furthermore, when the metal foil slides down, the lower end of the metal foil deforms into a wavy shape, so it cannot be deformed between the narrow insulation sheets unless a very large load is applied from above. Therefore, by inclining the lower end of the inner cylinder inward, it is possible to prevent not only the outer metal foil but also the metal foil near the inner cylinder from sliding off.

外筒の下部傾斜部は外側から中心に向かう半径方向の力
を、上方への力に変換する。この上方への力は下部傾斜
部にはさまれた絶縁シートによって順次、内筒の下部傾
斜部まで伝えられ、途中の半径方向各層の金属箔を上方
へ押し上げる作用をするので、滑落を防止する。また、
各段のコイル荷重を、各段の外筒の下部傾斜部が、夫々
、分散して受けるので、下段のコイルに上段のコイル荷
重が加わらない。
The lower slope of the barrel converts radial forces directed from the outside toward the center into upward forces. This upward force is sequentially transmitted to the lower inclined part of the inner cylinder by the insulating sheet sandwiched between the lower inclined parts, and works to push up the metal foil of each layer in the radial direction along the way, thus preventing it from slipping off. . Also,
Since the lower sloped portion of the outer cylinder of each stage receives the coil load of each stage in a distributed manner, the load of the upper stage coil is not applied to the lower stage coil.

〔実施例〕〔Example〕

以下、本発明の一実施例を第1図により説明する。主な
構成要素はコイル1.内筒2.外筒3゜冷却ダクト4.
鉄心10等である。コイル1は金属箔8と、これより幅
の広い絶縁シート9とを、両端に絶縁シート9を突出さ
せて内筒2に交互に巻き付けた部材である。内筒2はコ
イル1を上・下方向に複数段にわけて巻き付ける部材で
あり、第7図に示したように、各段毎に、その外周部に
下部傾斜部5.上部傾斜部6.平行部7等の凹凸を設け
た部材である。
An embodiment of the present invention will be described below with reference to FIG. The main components are coil 1. Inner cylinder 2. Outer cylinder 3° cooling duct 4.
The iron core is 10th class. The coil 1 is a member in which a metal foil 8 and a wider insulating sheet 9 are alternately wound around an inner cylinder 2 with the insulating sheet 9 protruding from both ends. The inner cylinder 2 is a member around which the coil 1 is wound in multiple stages in the upward and downward directions, and as shown in FIG. 7, each stage has a lower inclined portion 5 on its outer circumference. Upper slope part 6. This is a member provided with unevenness such as a parallel portion 7.

外筒3は複数段のコイル1を内筒2にはさみ付け、コイ
ル1が滑落しない様に固定する部材であり、第8図に示
したように、各段毎に、その内周部に下部傾斜部5.上
部傾斜部6.平行部7の凹凸を設けた部材である。第8
図のように周方向に分割したブロックであり、これを周
方向につなぎ合わせた。冷却ダクト4は内部に冷媒を流
入させ、コイル1を冷却すると共に、コイル1をはさみ
付けて固定する部はであり、その外周部、及び、内周部
に下部傾斜部5.上部傾斜部6.平行部7等の凹凸を設
けた部材である。内筒2と外筒3及び冷却ダクト4の平
行部7で金属箔8と絶縁シート9を、上部傾斜部6.下
部傾斜部5で金属箔8からはみ出した上・下端の絶縁シ
ート9をはさみ付けるようにした。
The outer cylinder 3 is a member that sandwiches the coils 1 in multiple stages to the inner cylinder 2 and fixes the coils 1 so that they do not fall off. Inclined portion 5. Upper slope part 6. This is a member in which parallel portions 7 are provided with concavities and convexities. 8th
As shown in the figure, it is a block divided in the circumferential direction, and these blocks are connected in the circumferential direction. The cooling duct 4 allows a refrigerant to flow into the interior to cool the coil 1, and has a lower sloped portion 5 on the outer circumference and inner circumference thereof. Upper slope part 6. This is a member provided with unevenness such as a parallel portion 7. The metal foil 8 and the insulating sheet 9 are placed between the parallel parts 7 of the inner cylinder 2, the outer cylinder 3, and the cooling duct 4, and the upper inclined part 6. The upper and lower insulating sheets 9 protruding from the metal foil 8 are sandwiched at the lower inclined portion 5.

コイル1が滑落しない理由を説明する。第2図はコイル
1を内筒2と外筒3とではさみ付けた簡略図、第3図は
下部傾斜部5付近の説明図である。
The reason why the coil 1 does not slip down will be explained. FIG. 2 is a simplified diagram showing the coil 1 sandwiched between the inner tube 2 and the outer tube 3, and FIG. 3 is an explanatory diagram of the vicinity of the lower inclined portion 5.

内筒2と外筒3の傾斜角度をαとし、平行部7と下部傾
斜部5の半径を夫々rQ、r、隙間をto。
The inclination angle of the inner cylinder 2 and the outer cylinder 3 is α, the radius of the parallel part 7 and the lower slope part 5 are rQ and r, respectively, and the gap is to.

しとすると、r<ro、及びj<to (t=toco
Sα)となる。
Then, r<ro and j<to (t=toco
Sα).

r < r oであるので、金属箔8が滑落しようとす
れば、第4図に示すように周方向に圧縮力が作用し、こ
れを防ごうとする。更に滑落する場合は、第5図(a)
、(b)に示した様に、金属箔8の下端が波状に変形す
るので、上方から非常に大きな荷重を加えなければ狭い
絶縁シート9間で変形できない。従って本実施例によれ
ば、内筒も内側に傾斜させたので外側の金属箔8ばかり
でなく、内筒付近の金Bk箔8も滑落することはない。
Since r < r o, if the metal foil 8 tries to slide down, a compressive force acts in the circumferential direction as shown in FIG. 4 to try to prevent this. If you fall further, please refer to Figure 5 (a).
, (b), the lower end of the metal foil 8 is deformed in a wavy manner, so that it cannot be deformed between the narrow insulation sheets 9 unless a very large load is applied from above. Therefore, according to this embodiment, since the inner cylinder is also inclined inward, not only the outer metal foil 8 but also the gold Bk foil 8 near the inner cylinder will not slip off.

同様にして、上部傾斜部6は金属箔8が上方にずれるの
を防止する。
Similarly, the upper slope 6 prevents the metal foil 8 from shifting upward.

また、第3図よりL” t ocosαとなるので、隙
間は平行部7より上部傾斜部6.下部傾斜部5で小さく
、また、傾斜部の隙間を一定にすることができるので、
傾斜部会面で絶縁シート9をはさみ付けることができる
。なお、第6図に示したように上部傾斜部6.下部傾斜
部5では半径rが平行部roより小さくなるので、絶縁
シート9の重なり部13ができる。そこで、金属箔8の
厚さをし、、絶縁シート9の厚さをts とし、ターン
数をnとした場合、平行部7の隙間to=n(t、+(
ts+1))、傾斜部の隙間t = 2 n (ts+
 1)。
Also, from FIG. 3, it becomes L" t ocos α, so the gap is smaller in the upper inclined part 6 and lower inclined part 5 than in the parallel part 7, and since the gap in the inclined part can be made constant,
The insulating sheet 9 can be sandwiched between the inclined surfaces. Incidentally, as shown in FIG. 6, the upper inclined portion 6. Since the radius r of the lower inclined portion 5 is smaller than that of the parallel portion ro, an overlapping portion 13 of the insulating sheets 9 is formed. Therefore, if the thickness of the metal foil 8 is ts, the thickness of the insulating sheet 9 is ts, and the number of turns is n, then the gap to=n(t, +(
ts+1)), gap t = 2 n (ts+
1).

(両端に切り込みを入れたような重なりが一枚の場合)
となるので傾斜角をα=cos−” [2n (ts+
1)/n (t、+ Ds+1))]とすれば傾斜部の
絶縁シート9を隙間なくはさみ付けることができる。従
って、本実施例によれば、金属箔が傾斜部の絶縁シート
の間に滑落しづらくする効果がある。
(If there is only one sheet of paper with notches on both ends)
Therefore, the inclination angle is α=cos−” [2n (ts+
1)/n(t,+Ds+1))], the insulating sheet 9 on the inclined portion can be sandwiched without any gaps. Therefore, this embodiment has the effect of making it difficult for the metal foil to slide down between the insulating sheets on the slope.

更に、外筒3の下部傾斜部5によって外筒3から中心に
向かう半径方向の力FOを上方への力Fupに変換する
ことができる。これを第6図で説明する。半径方向の中
心に向かう力FOは下部傾斜部5に直交する力F、と平
行な力に分けることができ、  Fw ==Focos
αと表わせる。更に、F。
Furthermore, the lower inclined portion 5 of the outer cylinder 3 can convert the radial force FO directed from the outer cylinder 3 toward the center into an upward force Fup. This will be explained with reference to FIG. The force FO directed toward the center in the radial direction can be divided into a force F perpendicular to the lower inclined portion 5 and a force parallel to it, Fw ==Focos
It can be expressed as α. Furthermore, F.

を上向きの力F’upと半径方向の力とに分けるとF 
up = F wsinαとなる・従って、上方への力
はF up = F osinα・COSα となる。
When divided into an upward force F'up and a radial force, we get F
up = F wsinα ・Therefore, the upward force becomes F up = F osinα・COSα.

この上方への力Fupは外筒3の下部傾斜部5から絶縁
シート9によって、順次、内筒2の下部傾斜部5まで伝
えられ、途中の半径方向各層の金属箔8を上方へ押し上
げる作用をするので、金属箔8の滑落を防止する。また
、コイル1の荷重を外筒3の下部傾斜部5で支持するこ
とができる。
This upward force Fup is sequentially transmitted from the lower inclined part 5 of the outer cylinder 3 to the lower inclined part 5 of the inner cylinder 2 by the insulating sheet 9, and has the effect of pushing upward the metal foil 8 of each layer in the radial direction along the way. Therefore, the metal foil 8 is prevented from sliding down. Further, the load of the coil 1 can be supported by the lower inclined portion 5 of the outer cylinder 3.

本実施例によれば、金属箔の周方向の圧縮力。According to this embodiment, the compressive force in the circumferential direction of the metal foil.

半径方向の力を上向き力への変換、及び、従来の滑り摩
擦力を利用できるので、コイルの滑落を防止する効果が
大である。
Since the radial force can be converted into an upward force and the conventional sliding friction force can be used, it is highly effective in preventing the coil from sliding down.

また、上・下方向に配置された各段のコイルの荷重を外
筒に設けた下部傾斜部で夫々分散して受けるので、下段
のコイルに上段のコイル荷重が加わることはない。
Further, since the load of the coils in each stage arranged in the upper and lower directions is distributed and received by the lower inclined portion provided on the outer cylinder, the load of the upper stage coil is not applied to the lower stage coil.

第10図に金属箔8と絶縁シート9を内筒2に巻き付け
る方法を示した。金属箔8からはずれた絶縁シート9に
切れ口15を入れ、これを上部傾斜部6.下部傾斜部5
.絞り部12等の半径が小さくなる部分にガイトローラ
16で巻き付け、平折部7に金属箔8と絶縁シート9と
を巻き付ける。
FIG. 10 shows a method of wrapping the metal foil 8 and the insulating sheet 9 around the inner cylinder 2. A cut 15 is made in the insulating sheet 9 removed from the metal foil 8, and the cut is inserted into the upper inclined portion 6. Lower slope part 5
.. A guide roller 16 is wound around the part where the radius becomes small, such as the converging part 12, and a metal foil 8 and an insulating sheet 9 are wound around the flat folded part 7.

本実施例によれば、半径が異なる凹凸のある内筒に金属
箔と絶縁シートとを隙間なく巻き付ける効果がある。な
お、切れ口15による絶縁低下を防止するには、薄い絶
縁シートを二枚切れ目が一致しないように巻く。
According to this embodiment, there is an effect that the metal foil and the insulating sheet are wrapped around the inner cylinder having unevenness with different radii without any gaps. Note that in order to prevent the insulation from decreasing due to the cuts 15, two thin insulating sheets are wound so that the cuts do not coincide.

第11図は半径が小さくなる内筒2の上部傾斜部、及び
、下部傾斜部には絶縁シート9に折り目18をつけて巻
き付けるようにした。本実施例によれば、切れ目がない
ので、絶縁効果が高い。
In FIG. 11, the insulating sheet 9 is wrapped with folds 18 around the upper and lower inclined parts of the inner cylinder 2 where the radius becomes smaller. According to this embodiment, since there is no cut, the insulation effect is high.

第12図は他の実施例であり、低圧コイル20側の上部
傾斜部6.下部傾斜部5の傾斜を平行部7より半径が大
きくなるよう外向きに、高圧コイル19側の傾斜を平行
部7より半径が小さくなるよう内向きに配置したもので
ある。また、この逆に低圧コイル20側の傾斜を内向き
に、高圧コイル19側を外向きに配置することも考えら
れる。
FIG. 12 shows another embodiment, in which the upper inclined portion 6 on the low voltage coil 20 side. The slope of the lower slope part 5 is arranged outward so that the radius is larger than that of the parallel part 7, and the slope on the high voltage coil 19 side is arranged inwards so that the radius is smaller than that of the parallel part 7. It is also conceivable to arrange the inclination of the low voltage coil 20 side inward and the high voltage coil 19 side to face outward.

なお、外向きの傾斜を与えるとコイル周方向に張力が作
用するので、コイルの滑落を防止する効果は大きい。ま
た、本実施例では、絶縁シート9の両端に切れ口15を
いれなければならず絶縁が破壊されるおそれがあるので
、第15図に示すように薄い絶縁シート9を二枚重ね、
切れ口15が交互になるように巻き付けた。
Incidentally, when an outward inclination is applied, tension is applied in the circumferential direction of the coil, which is highly effective in preventing the coil from slipping off. In addition, in this embodiment, cuts 15 must be made at both ends of the insulating sheet 9, which may cause the insulation to break down, so two thin insulating sheets 9 are stacked as shown in FIG.
It was wound so that the cuts 15 were alternate.

第13図は他の実施例であり、上・下方向の各段を分割
し、上と下のコイル間に水平ダクト21を設けた。本実
施例によれば、冷媒が半径方向にも流シJする効果があ
る。
FIG. 13 shows another embodiment in which the upper and lower stages are divided and a horizontal duct 21 is provided between the upper and lower coils. According to this embodiment, there is an effect that the refrigerant flows also in the radial direction.

第14図は他の実施例であれ、上・下方向の各段で傾斜
を外向きと、内向きとに交互に設けた。
FIG. 14 shows another embodiment in which the slopes are alternately directed outward and inward in each stage in the upper and lower directions.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、各段のコイルの滑落を防ぐことができ
る。また、各段のコイル荷重を、夫々。
According to the present invention, it is possible to prevent the coils in each stage from slipping down. Also, the coil load of each stage, respectively.

分散して外筒で受けるので、下段のコイルに上段の荷重
が加わることはない。
Since the load is distributed and received by the outer cylinder, the upper load is not applied to the lower coil.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例の縦断面図、第2図ないし第
6図はコイル滑落防止の説明図、第7図ないし第9図は
構成要素の斜視図、第10図、第11図および第15図
はコイル巻き付けの説明図、第12図ないし第14図は
他の実施例の縦断面図である。 1・・・コイル、2・・・内筒、3・・・外筒、4・・
・冷却ダクト、5・・・下部傾斜部、6・・・上部傾斜
部、7・・・平行部、8・・・金属箔、9・・・絶縁シ
ート、10・・・鉄心、11・・・脚、12・・・絞り
部、13・・重なり部、14・・・変形、15・・・切
れ目、16・・・ガイドローラ、17・・歯車、18・
・折り目、19・・・高圧コイル、20・・・低圧コイ
ル、21・・・水平ダクト。 第1図 Q 第2図 第3図 第4図 第5図(0) 第6図 (Q) 第7図 第8図 第9図 第11図 (1(b、1 (c)       (d) 第12図 弼13図 tO−、。 第 14図 (久) 15  図 A−A矢ネ芝
FIG. 1 is a longitudinal cross-sectional view of one embodiment of the present invention, FIGS. 2 to 6 are explanatory diagrams for preventing the coil from falling off, FIGS. 7 to 9 are perspective views of the components, and FIGS. 10 and 11. 15 and 15 are explanatory diagrams of coil winding, and FIGS. 12 to 14 are longitudinal sectional views of other embodiments. 1...Coil, 2...Inner tube, 3...Outer tube, 4...
- Cooling duct, 5... Lower inclined part, 6... Upper inclined part, 7... Parallel part, 8... Metal foil, 9... Insulating sheet, 10... Iron core, 11...・Leg, 12... Squeezing part, 13... Overlapping part, 14... Deformation, 15... Cut, 16... Guide roller, 17... Gear, 18...
・Fold line, 19...High voltage coil, 20...Low voltage coil, 21...Horizontal duct. Figure 1 Q Figure 2 Figure 3 Figure 4 Figure 5 (0) Figure 6 (Q) Figure 7 Figure 8 Figure 9 Figure 11 (1 (b, 1 (c) (d) Figure 12 \ 13 Figure tO-, Figure 14 (Ku) 15 Figure A-A Yaneshiba

Claims (11)

【特許請求の範囲】[Claims] 1.内筒と、前記内筒のまわりに設けた金属箔と、前記
金属箔より幅の広い絶縁シートとを巻いたコイルと、前
記コイルを冷却するため前記コイルの相互間にある間隔
で配置された冷却ダクトと、前記コイルを前記内筒には
さみ付ける外筒とを含む箔巻変圧器において、 前記内筒の外周部と前記外筒の内周部とに、半径が変わ
らない平行部と、前記平行部の両端に前記内筒と前記外
筒とが同一方向に傾斜する傾斜部を長手方向に一組また
は複数組設けたことを特徴とする箔巻変圧器。
1. an inner cylinder, a metal foil provided around the inner cylinder, a coil wound with an insulating sheet wider than the metal foil, and arranged at a certain interval between the coils to cool the coil. A foil-wound transformer including a cooling duct and an outer cylinder that sandwiches the coil in the inner cylinder, the outer peripheral part of the inner cylinder and the inner peripheral part of the outer cylinder having a parallel part whose radius does not change; 1. A foil-wound transformer, characterized in that one or more sets of inclined parts are provided in the longitudinal direction at both ends of a parallel part, in which the inner cylinder and the outer cylinder are inclined in the same direction.
2.特許請求の範囲第1項において、 前記冷却ダクトの内周部に前記外筒の内周部と同形の凹
凸を、前記外周部に前記内筒の外周部と同形の凹凸を設
けたことを特徴とする箔巻変圧器。
2. Claim 1 is characterized in that the cooling duct is provided with unevenness having the same shape as the inner circumference of the outer cylinder on the inner circumference thereof, and unevenness having the same shape as the outer circumference of the inner cylinder on the outer circumference thereof. Foil-wound transformer.
3.特許請求の範囲第1項において、前記内筒の平行部
に前記金属箔と前記絶縁シートを巻き付け、前記傾斜部
に前記金属箔から幅方向にはみ出した前記絶縁シートを
巻き付けたことを特徴とする箔巻変圧器。
3. Claim 1 is characterized in that the metal foil and the insulating sheet are wrapped around the parallel part of the inner cylinder, and the insulating sheet protruding from the metal foil in the width direction is wrapped around the inclined part. Foil-wound transformer.
4.特許請求の範囲第1項において、前記内筒,前記外
筒,前記冷却ダクトの傾斜部を半径が小さくなるように
傾斜させたことを特徴とする箔巻変圧器。
4. The foil-wound transformer according to claim 1, wherein the inclined portions of the inner tube, the outer tube, and the cooling duct are inclined so that the radius becomes smaller.
5.特許請求の範囲第1項において、前記内筒,前記外
筒,前記冷却ダクトの傾斜部を半径が大きくなるように
傾斜させたことを特徴とする箔巻変圧器。
5. The foil-wound transformer according to claim 1, wherein the inclined portions of the inner tube, the outer tube, and the cooling duct are inclined so that the radius becomes larger.
6.特許請求の範囲第1項において、前記内筒,前記外
筒,前記冷却ダクトの傾斜部を半径が大きくなる傾斜と
小さくなる傾斜とを組み合わせたことを特徴とする箔巻
変圧器。
6. 2. The foil-wound transformer according to claim 1, wherein the inclined portions of the inner cylinder, the outer cylinder, and the cooling duct have a combination of slopes in which the radius increases and slopes in which the radius decreases.
7.特許請求の範囲第2項において、前記冷却ダクトを
複数段の前記コイルに共通して用い、下段の前記コイル
から上段の前記コイルまで冷媒を貫通して流したことを
特徴とする箔巻変圧器。
7. The foil-wound transformer according to claim 2, wherein the cooling duct is used in common for a plurality of stages of the coils, and the refrigerant is passed through and flows from the lower stage coil to the upper stage coil. .
8.特許請求の範囲第2項において、前記冷却ダクトを
各段で分離し、上段コイルと下段コイルの間に空間を設
け、半径方向に冷媒が流れるようにしたことを特徴とす
る箔巻変圧器。
8. The foil-wound transformer according to claim 2, wherein the cooling duct is separated at each stage, and a space is provided between an upper stage coil and a lower stage coil, so that the refrigerant flows in a radial direction.
9.特許請求の範囲第3項において、前記金属箔からは
み出した前記絶縁シートに切れ目を入れておき、傾斜部
に巻いたことを特徴とする箔巻変圧器。
9. 4. The foil-wound transformer according to claim 3, wherein the insulating sheet protruding from the metal foil is cut and wound around an inclined portion.
10.特許請求の範囲第9項において、前記絶縁シート
に、切れ目が交互になるように重ねた二枚の絶縁シート
を用いたことを特徴とする箔巻変圧器。
10. 10. The foil-wound transformer according to claim 9, wherein the insulating sheet is made of two insulating sheets stacked one on top of the other with alternating cuts.
11.特許請求の範囲第3項において、前記金属箔から
はみ出した前記絶縁シートに折り目をつけて、半径が小
さくなる方向に傾斜した傾斜部に巻き付けたことを特徴
とする箔巻変圧器。
11. 4. The foil-wound transformer according to claim 3, wherein the insulating sheet protruding from the metal foil is creased and wrapped around an inclined portion inclined in a direction in which the radius becomes smaller.
JP5610488A 1988-03-11 1988-03-11 Foil-wound transformer Pending JPH01231305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5610488A JPH01231305A (en) 1988-03-11 1988-03-11 Foil-wound transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5610488A JPH01231305A (en) 1988-03-11 1988-03-11 Foil-wound transformer

Publications (1)

Publication Number Publication Date
JPH01231305A true JPH01231305A (en) 1989-09-14

Family

ID=13017789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5610488A Pending JPH01231305A (en) 1988-03-11 1988-03-11 Foil-wound transformer

Country Status (1)

Country Link
JP (1) JPH01231305A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7026905B2 (en) 2000-05-24 2006-04-11 Magtech As Magnetically controlled inductive device
US7193495B2 (en) 2000-05-24 2007-03-20 Espen Haugs Magnetically influenced current or voltage regulator and a magnetically influenced converter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7026905B2 (en) 2000-05-24 2006-04-11 Magtech As Magnetically controlled inductive device
US7193495B2 (en) 2000-05-24 2007-03-20 Espen Haugs Magnetically influenced current or voltage regulator and a magnetically influenced converter
US7256678B2 (en) 2000-05-24 2007-08-14 Magtech As Magnetically controlled inductive device

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