JP2940066B2 - Lead wire opening structure of sheet winding transformer - Google Patents
Lead wire opening structure of sheet winding transformerInfo
- Publication number
- JP2940066B2 JP2940066B2 JP11077890A JP11077890A JP2940066B2 JP 2940066 B2 JP2940066 B2 JP 2940066B2 JP 11077890 A JP11077890 A JP 11077890A JP 11077890 A JP11077890 A JP 11077890A JP 2940066 B2 JP2940066 B2 JP 2940066B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- metal foil
- sheet
- winding
- conductor
- 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 title claims description 32
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 title claims description 16
- 239000011888 foil Substances 0.000 claims description 32
- 229910052751 metal Inorganic materials 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 32
- 230000000630 rising effect Effects 0.000 claims description 29
- 239000004020 conductor Substances 0.000 claims description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 15
- 238000005304 joining Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 description 11
- 239000012212 insulator Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Coils Of Transformers For General Uses (AREA)
Description
【発明の詳細な説明】 A.産業上の利用分野 本発明は、金属箔と絶縁シートを重ねて巻いて成るシ
ート状巻線を用いたシート巻線変圧器（箔巻変圧器）の
リード線口出し構造の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION A. Industrial Field of the Invention The present invention relates to a lead wire of a sheet winding transformer (foil winding transformer) using a sheet winding formed by stacking a metal foil and an insulating sheet. The present invention relates to an improvement in the outlet structure.
B.明の概要 本発明は、シート巻線変圧器のリード線口出し構造に
おいて、 シート巻線の金属箔の端部とリード立上がり部の接合
部の一部にステンレス鋼板を介在させるとともに、リー
ド立上がり部に複数本の斜めのスリットを形成すること
により、 リード口出し方向の端縁部への電流集中を緩和して電
流分布の均一化を図るようにしたものである。SUMMARY OF THE INVENTION The present invention relates to a lead winding structure for a sheet winding transformer, in which a stainless steel plate is interposed at a part of a joint between an end of a sheet winding metal foil and a lead rising portion, and a lead rising structure is provided. By forming a plurality of oblique slits in the portion, the current concentration on the edge in the lead-out direction is reduced, and the current distribution is made uniform.
C.従来の技術 シート巻線変圧器においては、第４図に示すようにシ
ート状巻線11の端部にアルミニウム，銅等の棒状をした
口出しリード線12をロウ付けなどにより接続した場合、
矢印で示すような電流分布となり、Ａ部のシート状巻線
11の側端部に電流が集中し、局部的に発熱する。C. Prior Art In a sheet winding transformer, as shown in FIG. 4, when a lead-shaped lead wire 12 made of aluminum, copper or the like is connected to the end of a sheet winding 11 by brazing or the like,
The current distribution is as shown by the arrow, and the sheet-shaped winding of section A
Current concentrates on the side end of 11 and generates heat locally.
また、シート巻線変圧器では、第５図に示すようにタ
ンク21内の鉄心22に巻装された低圧巻線23と高圧巻線24
の間隙及び各巻線内に巻線の軸方向を主成分とする漏れ
磁束が生じる。この磁束は、巻線端部で急激に曲がって
口出し導体25に垂直に入射するような分布を示すため、
導体に渦電流が生じ、発熱により絶縁を劣化させる。更
に、電磁力によりシート状巻線やリード線接続部を変形
させる恐れがある。In the sheet winding transformer, a low-voltage winding 23 and a high-voltage winding 24 wound around an iron core 22 in a tank 21 as shown in FIG.
A leakage flux having a main component in the axial direction of the winding is generated in the gap and in each winding. Since this magnetic flux shows a distribution that bends sharply at the winding end and enters perpendicularly to the lead conductor 25,
An eddy current is generated in the conductor, and heat is generated to deteriorate the insulation. Furthermore, there is a possibility that the sheet-like winding and the lead wire connection portion may be deformed by the electromagnetic force.
このため、リード口出し部での電流集中を防止する手
段が種々考案されており、（１）．特開昭59−19133
号、（２）．特開昭59−191309号、（３）．特開昭59−
33810号及び（４）．特開昭59−150411号の４件を例示
する。For this reason, various means have been devised for preventing current concentration at the lead outlet. (1). JP-A-59-19133
No., (2). JP-A-59-191309, (3). JP-A-59-
No. 33810 and (4). The following four examples are disclosed in JP-A-59-150411.
（１）．は、第６図（Ａ）に示すように絶縁層31aで被
覆された多数の素線31をより合わせ、絶縁部32で被覆し
たより線をリード線として用い、その先端部分の絶縁物
32と絶縁層31aを除去して、導体チューブ33に挿入，圧
着した後、シート状巻線の金属箔34の端部にロウ付けな
どにより接続した場合であり、第６図（Ｂ）に示すよう
に導体チューブ33の長さを金属箔34の幅より短くし、接
続位置を特定したり、第６図（Ｃ）に示すように絶縁層
31aの除去範囲を短縮することが変形例として掲載され
ている。(1). As shown in FIG. 6 (A), a plurality of strands 31 covered with an insulating layer 31a are stranded, and a stranded wire covered with an insulating portion 32 is used as a lead wire.
After removing the insulating layer 32a and the insulating layer 31a, inserting into the conductor tube 33, crimping, and connecting to the end of the metal foil 34 of the sheet winding by brazing or the like, as shown in FIG. 6 (B). The length of the conductor tube 33 is made shorter than the width of the metal foil 34 so as to specify the connection position, or as shown in FIG.
Reducing the removal range of 31a is described as a modification.
（２）．は、第７図（Ａ）に示すように平板状の口出し
導体41の金属箔34の側端部と対応する部分に複数本のス
リット42を設けた場合であり、第７図（Ｂ）に示すよう
にスリット42の長さを金属箔34の幅以上としたり、第７
図（Ｃ）に示すようにスリット内に絶縁物43を充填する
ことが変形例として掲載されている。(2). FIG. 7 (A) shows a case where a plurality of slits 42 are provided in a portion corresponding to the side end of the metal foil 34 of the plate-shaped lead conductor 41 as shown in FIG. 7 (A). As shown, the length of the slit 42 is set to be equal to or larger than the width of the metal foil 34,
The filling of the insulator 43 into the slit as shown in FIG.
（３）．は、第８図（Ａ）に示すように金属箔34の先端
付近の両側縁部に絶縁物51a,51bを設け、これらの上に
リード線52を配置して、その中間部を金属箔34にスポッ
ト溶接などにより接続した場合であり、第８図（Ｂ）に
示すようにリード線としてより線52′を用いたことが変
形例として掲載されている。(3). As shown in FIG. 8 (A), insulators 51a and 51b are provided on both side edges near the tip of the metal foil 34, a lead wire 52 is disposed on these, and an intermediate portion thereof is connected to the metal foil 34. FIG. 8 (B) shows a modified example in which a stranded wire 52 'is used as a lead wire as shown in FIG. 8 (B).
（４）．は、第９図（Ａ）に示すように金属箔34の先端
部分の両側縁部に絶縁物61a,61bを設け、この部分を絶
縁物が内側になるように折り曲げてリード線62を包み込
んだ場合であり、第９図（Ｂ）に示すようにリード線と
してより線62′を用いたことが変形例として掲載されて
いる。(4). As shown in FIG. 9 (A), insulators 61a and 61b are provided on both side edges of the tip portion of the metal foil 34, and these portions are bent so that the insulator is on the inner side, and the lead wire 62 is wrapped. In this case, the use of a twisted wire 62 'as a lead wire as shown in FIG. 9B is described as a modification.
いずれの場合も、金属箔34の側端部（リード線との接
合部）への電流集中を緩和し、電流分布の均一化を図ろ
うとしたものである。In any case, the current concentration on the side end portion (joint portion with the lead wire) of the metal foil 34 is alleviated to make the current distribution uniform.
D.発明が解決しようとする課題 上記（１）の場合は、金属箔34の側端部への電流集中
が免れなかったり、極端な電流排除となる。D. Problems to be Solved by the Invention In the case of the above (1), current concentration on the side end portion of the metal foil 34 is inevitable, or the current is extremely eliminated.
（２）の場合は、金属箔34と平板状の口出し導体（リ
ード線）41との接続が断続的となり、機械的強度に難点
がある。In the case of (2), the connection between the metal foil 34 and the plate-shaped lead conductor (lead wire) 41 is intermittent, and there is a problem in mechanical strength.
また、（３），（４）の場合は、絶縁物（51a,51
b），（61a,61b）を配設しているため、側縁部では電流
が全く遮断されることになり、（１）と同様に電流分布
の均一化の度合いが不足する。In the case of (3) and (4), the insulator (51a, 51
Since (b) and (61a, 61b) are provided, the current is completely cut off at the side edges, and the degree of uniformity of the current distribution is insufficient as in (1).
本発明の目的は、電流分布の均一化が図れるととも
に、簡単な構造で十分な機械的強度を持つシート巻線変
圧器のリード線口出し構造を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a lead wire lead-out structure for a sheet-winding transformer having a simple structure and sufficient mechanical strength while achieving uniform current distribution.
E.課題を解決するための手段 本発明は、金属箔と絶縁シートを重ねて巻いて成るシ
ート状巻線を用いたシート巻線変圧器において、 前記シート巻線の金属箔の端部に、複数本の斜めのス
リットが形成されたリード立上がり導体を接合して設
け、 そのリード立上がり導体のリード口出し方向の側端部
に第１のステンレス鋼板を接合して設けるとともに、リ
ード立上がり導体の金属箔接合側と反対の端縁に第２の
ステンレス鋼板を接合して設け、 前記リード立上がり導体のリード口出し方向の端部
に、より線あるいは転位を有する平角導体をリード線と
して接続して設けたことを特徴とするものである。E. Means for Solving the Problems The present invention relates to a sheet winding transformer using a sheet winding formed by stacking and winding a metal foil and an insulating sheet, at the end of the metal foil of the sheet winding, A lead rising conductor formed with a plurality of oblique slits is joined and provided, and a first stainless steel plate is joined and provided at a side end of the lead rising conductor in a lead opening direction, and a metal foil of the lead rising conductor is provided. A second stainless steel plate is joined and provided on the edge opposite to the joining side, and a flat conductor having a stranded wire or dislocation is connected and provided as a lead wire at an end of the lead rising conductor in a lead opening direction. It is characterized by the following.
F.作用 金属箔とリード立上がり導体の接合部の側縁部には第
１のステンレス鋼板が介在しており、大きな抵抗率のた
めに電流の集中が避けられ、電流は金属箔の中央部から
リード立上がり導体に流入する。この時、スリットによ
り進路が規制され、電流分布が均一化される。F. Action The first stainless steel plate is interposed at the side edge of the joint between the metal foil and the lead rising conductor, and current concentration is avoided due to the large resistivity, and the current flows from the center of the metal foil. It flows into the lead rising conductor. At this time, the course is regulated by the slit, and the current distribution is made uniform.
G.実施例 以下、本発明を図面に示す実施例に基づいて詳細に説
明する。G. Examples Hereinafter, the present invention will be described in detail based on examples shown in the drawings.
第１図は本発明の一実施例を示すもので、１はシート
状巻線の金属箔、２はこの金属箔１の端部に接合した、
銅，アルミニウム等から成る口出し導体（リード立上が
り部）、３はこのリード立上がり部２に接続した口出し
用より線、４は前記リード立上がり部２の前記金属箔１
と接合する端縁上部に溶接などで一体化するとともに、
前記金属箔１の側縁部の切り欠きに嵌合、接続した第１
のステンレス鋼板、５は前記リード立上がり部２の金属
箔接合側と反対の端縁に溶接などにより接合した第２の
ステンレス鋼板である。FIG. 1 shows an embodiment of the present invention, in which 1 is a sheet-shaped wound metal foil, and 2 is bonded to an end of the metal foil 1.
A lead conductor (lead rising portion) made of copper, aluminum, or the like, 3 is a lead stranded wire connected to the lead rising portion 2, and 4 is the metal foil 1 of the lead rising portion 2.
At the top of the edge that is joined with
First metal fitting and connection with the notch on the side edge of the metal foil 1
The stainless steel plate 5 is a second stainless steel plate joined by welding or the like to the edge of the lead rising portion 2 opposite to the metal foil joining side.
前記リード立上がり部２には、電流分布が均一化する
ように複数本の斜めのスリット６をその長さが少しずつ
異なるように形成している。また、リード立上がり部２
の端部を筒状とし、この部分に前記口出し用より線３を
挿入，圧着すれば、接続が容易になり、かつ強固とな
る。In the lead rising portion 2, a plurality of oblique slits 6 are formed so as to have slightly different lengths so as to make the current distribution uniform. In addition, lead rising portion 2
Is made cylindrical, and if the stranded wire 3 is inserted and crimped into this portion, the connection becomes easy and firm.
このようにシート状巻線の金属箔１とリード立上がり
部２の接合部の一部に第１のステンレス鋼板４を介在さ
せるとともに、リード立上がり部２の他の端縁全体に第
２のステンレス鋼板５を接合すると、ステンレス鋼板の
比透磁率が１に近く、抵抗率が銅の約30倍であるため、
側端部への電流集中が阻止され、電流は金属箔１の中央
部からリード立上がり部２へ流入するようになる。この
時、リード立上がり部２の斜めのスリット６により電流
の進路が規制される。As described above, the first stainless steel plate 4 is interposed in a part of the joining portion between the metal foil 1 of the sheet-shaped winding and the lead rising portion 2, and the second stainless steel plate is formed on the entire other edge of the lead rising portion 2. When 5 is joined, the relative permeability of the stainless steel plate is close to 1 and the resistivity is about 30 times that of copper,
The current concentration on the side end is prevented, and the current flows from the central portion of the metal foil 1 to the lead rising portion 2. At this time, the current path is regulated by the oblique slit 6 of the lead rising portion 2.
この結果、電流分布は、第２図に示すように均一化さ
れる。As a result, the current distribution is made uniform as shown in FIG.
また、リード立上がり部２の金属箔１と反対側の端縁
には第２のステンレス鋼板５が接合されており、電磁力
に対する補強となる。Further, a second stainless steel plate 5 is joined to the edge of the lead rising portion 2 on the side opposite to the metal foil 1 to provide reinforcement against electromagnetic force.
なお、上記実施例では、リード立上がり部２にリード
口出し用より線３を接続したが、第３図に示すようにリ
ード口出し用平角導体７をリード立上がり部２に接続し
てもよい。この場合、途中で転位させると、漂遊損を少
なくできる。In the above-described embodiment, the stranded wire 3 for leading the lead is connected to the lead rising portion 2, but a rectangular lead conductor 7 for leading the lead may be connected to the lead rising portion 2 as shown in FIG. In this case, when dislocation occurs in the middle, stray loss can be reduced.
H.発明の効果 以上のように本発明によれば、シート状巻線の金属箔
とリード立上がり部（導体）との接合部の口出し方向の
部分と、リード立上がり部の金属箔と反対の端縁にステ
ンレス鋼板を配設するとともに、リード立上がり部に複
数本の斜めのスリットを形成したので、電流集中を緩和
して電流分布の均一化を図ることができる。しかも、簡
単な構造で十分な機械的強度を持たせることができる。
また、リード口出し部により線あるいは転位を有する平
角導体を使用したことにより、漏れ磁束による発熱防止
あるいは損失の軽減が図れる。H. Effects of the Invention As described above, according to the present invention, the portion of the joining portion between the metal foil of the sheet-shaped winding and the lead rising portion (conductor) in the opening direction and the end of the lead rising portion opposite to the metal foil. Since a stainless steel plate is provided on the edge and a plurality of oblique slits are formed in the lead rising portion, current concentration can be reduced and current distribution can be made uniform. In addition, sufficient mechanical strength can be provided with a simple structure.
In addition, the use of a rectangular conductor having wires or dislocations in the lead-out portion can prevent heat generation due to leakage magnetic flux or reduce loss.
第１図は本発明に係るシート巻線変圧器のリード線口出
し構造の一実施例を示す正面図、第２図は同実施例の電
流分布説明図、第３図は本発明の他の実施例を示す正面
図、第４図〜第９図（Ａ），（Ｂ）はそれぞれ従来例を
示す構成説明図である。 １……シート巻線の金属箔、２……リード立上がり部
（導体）、３……リード口出し用より線、４……第１の
ステンレス鋼板、５……第２のステンレス鋼板、６……
スリット、７……リード口出し用平角導体。FIG. 1 is a front view showing an embodiment of a lead wire exit structure of a sheet winding transformer according to the present invention, FIG. 2 is an explanatory view of a current distribution of the embodiment, and FIG. 3 is another embodiment of the present invention. FIGS. 4 to 9 (A) and (B) are explanatory views showing a conventional example, respectively. 1 ... Metal foil of sheet winding, 2 ... Lead rising part (conductor), 3 ... Stranded wire for lead opening, 4 ... First stainless steel sheet, 5 ... Second stainless steel sheet, 6 ...
Slit, 7 ... A rectangular conductor for leading the lead.
Claims (1)
ート状巻線を用いたシート巻線変圧器において、 前記シート巻線の金属箔の端部に、複数本の斜めのスリ
ットが形成されたリード立上がり導体を接合して設け、 そのリード立上がり導体のリード口出し方向の側端部に
第１のステンレス鋼板を接合して設けるとともに、リー
ド立上がり導体の金属箔接合側と反対の端縁に第２のス
テンレス鋼板を接合して設け、 前記リード立上がり導体のリード口出し方向の端部に、
より線あるいは転位を有する平角導体をリード線として
接続して設けたことを特徴とするシート巻線変圧器のリ
ード線口出し構造。1. A sheet-winding transformer using a sheet-like winding formed by superposing and winding a metal foil and an insulating sheet, wherein a plurality of oblique slits are formed at an end of the metal foil of the sheet winding. A first stainless steel plate is joined and provided at a side end of the lead rising conductor in a lead outlet direction, and the lead rising conductor is provided at an end opposite to the metal foil joining side of the lead rising conductor. A second stainless steel plate is joined and provided, and at the end of the lead rising conductor in the lead outlet direction,
A lead wire outlet structure for a sheet winding transformer, wherein a rectangular conductor having a stranded wire or a dislocation is connected and provided as a lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11077890A JP2940066B2 (en) | 1990-04-26 | 1990-04-26 | Lead wire opening structure of sheet winding transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11077890A JP2940066B2 (en) | 1990-04-26 | 1990-04-26 | Lead wire opening structure of sheet winding transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0410404A JPH0410404A (en) | 1992-01-14 |
| JP2940066B2 true JP2940066B2 (en) | 1999-08-25 |
Family
ID=14544369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11077890A Expired - Lifetime JP2940066B2 (en) | 1990-04-26 | 1990-04-26 | Lead wire opening structure of sheet winding transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2940066B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012084569A (en) * | 2010-10-06 | 2012-04-26 | Sanyo Electric Co Ltd | Battery pack |
-
1990
- 1990-04-26 JP JP11077890A patent/JP2940066B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0410404A (en) | 1992-01-14 |
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