【０００１】[0001]
【産業上の利用分野】本発明は、変圧器等の静止誘導機
器の巻線構造及び巻線方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding structure and a winding method for a stationary induction machine such as a transformer.
【０００２】[0002]
【従来の技術】作業者養成の困難な情勢に対応じて、静
止誘導機器の巻線は自動・半自動巻線装置を用いて行わ
れる傾向にあり、各種巻線の自動・半自動技術の開発・
導入検討が盛んである。変圧器の場合、一般には、磁気
回路である鉄心を中心に電気回路である巻線が巻回して
配置されており、この巻線に使用される導体としては、
その導体に通すべき電流の大きさに応じて、丸線、平角
線又は薄帯形状のシート状導体が用いられる。2. Description of the Related Art In response to the difficult situation of training workers, the winding of stationary induction equipment tends to be performed using an automatic / semi-automatic winding device.
Consideration of introduction is active. In the case of a transformer, generally, a winding which is an electric circuit is wound around an iron core which is a magnetic circuit, and a conductor used for this winding is
Depending on the magnitude of the current to be passed through the conductor, a round wire, a flat wire or a thin strip-shaped sheet conductor is used.
【０００３】この薄帯形状のシート状導体の採用は、
（１）短絡時の導体内電流分布が軸方向の機械力を極少
とするよう流れる、（２）導体表面が巻線軸方向に沿っ
て滑らかであるため冷却特性に優れる、等の利点が多い
ことから、比較的大きな定格電流をもつ巻線に対して主
流となってきている。しかしながら、巻線の電気回路引
出し線は、丸線や平角線等のような導体そのものを比較
的容易に成形して引き出されるのと異なり、一般的に
は、別にシート状導体と同一素材でできた引出しリード
板にシート状導体を溶接等により接合して製造される。[0003] The adoption of this strip-shaped sheet conductor is as follows.
(1) The current distribution in the conductor at the time of short circuit flows so as to minimize the mechanical force in the axial direction. (2) The conductor surface is smooth along the winding axis direction, so that there are many advantages such as excellent cooling characteristics. Therefore, it is becoming mainstream for windings having a relatively large rated current. However, the electric circuit lead wire of the windingcompares the conductor itself such as a round wire or a flat wire.
Generally, the sheet conductor is manufactured by welding or the like to a lead lead plate made of the same material as the sheet conductor separately, unlike the case where the sheet conductor iseasily formed and drawn .
【０００４】図５は従来の薄帯形状のシート状導体を用
いた巻線構造図である。図において、１は鉄心、２は鉄
心の外周に巻回された薄帯形状のシート状導体にて構成
された巻線、３１は巻始め引出しリード板、３２は中間
タップ引出しリード板、３３は巻終り引出しリード板で
あり、薄帯形状のシート状導体にそれぞれ巻線の電気回
路引出しリードとして溶接等により接合されている。引
出しリード板３１，３２，３３は使用する薄帯形状のシ
ート状導体の断面積と同程度の断面積を有する板状のも
ので、シート状導体の巻回方向と直角、即ち巻線の軸方
向に引き出すように配置される。この引出し用リード３
１，３２，３３は、薄帯形状のシート状導体に溶接接合
されており、特に巻線の中間引出しとなる中間タップ引
出しリード板３２は、引出しリード板３２の角部によ
り、それを導体間へ挿入される絶縁紙を損傷する恐れが
あるため、その保護を目的とした厚手のアテ板５１，５
２を引出し用リード３２の上下に補強挿入する必要があ
った。FIG. 5 is a diagram showing a winding structure using a conventional strip-shaped sheet conductor. In the figure, 1 is an iron core, 2 is a winding composed of a thin strip-shaped sheet conductor wound around the outer periphery of the iron core, 31 is a lead-out lead plate, 32 is an intermediate tap lead plate, 33 is a lead plate. An end-of-winding lead plate, which is joined to a thin sheet-shaped conductor by welding or the like as an electric circuit lead for winding. The lead-out lead plates 31, 32, and 33 are plate-shaped and have a cross-sectional area substantially equal to the cross-sectional area of the thin strip-shaped sheet conductor to be used, and are perpendicular to the winding direction of the sheet-shaped conductor, that is, the axis of the winding. It is arranged to pull out in the direction. This lead 3
1, 32, 33 are welded to a thin strip-shaped sheet conductor. In particular, an intermediate tap lead lead plate 32 serving as an intermediate lead of the winding is connected to the conductor by the corner of the lead lead plate 32. There is a risk of damaging the insulating paper that is inserted into the
It was necessary to insert reinforcement 2 above and below lead-out lead 32.
【０００５】また、４１，４２は、巻線の導体に電流が
流れるために発生する損失熱を冷却する媒体としての油
を通すための冷却ダクトであり、この冷却ダクト４１，
４２はスペーサ５により任意の間隔が確保される。この
冷却ダクト４１，４２は、あらかじめ必要な油隙を確保
する任意ピッチでかつ任意本数のスペーサ５を並べられ
た構造体をシート状導体及び絶縁紙を巻回する作業の途
中で挿入する。[0005] Reference numerals 41 and 42 denote cooling ducts for passing oil as a medium for cooling heat loss generated due to current flowing through the conductors of the windings.
Arbitrary intervals 42 are secured by the spacer 5. The cooling ducts 41 and 42 insert a structure in which an arbitrary number of spacers 5 are arranged at an arbitrary pitch in advance to secure a necessary oil gap in the course of the work of winding the sheet conductor and the insulating paper.
【０００６】[0006]
【発明が解決しようとする課題】従来、このアテ板５
１，５２が必要なために、巻線構造では部品点数、作業
工程数が多く、巻線作業の自動・半自動化をする場合に
おいて、このことが極めて問題となっていた。また、実
際の巻回作業では、一般には巻回作業を行う途中で冷却
ダクト形成用のスペーサ５の挿入を行ったり、電気回路
引出し用リード３２の導体への接合作業を行ったりする
ので、その都度巻回作業は停止されることになる。この
ように連続巻回作業が阻害されるために、巻線機械の稼
働率が低下し、効率的な作業の点から極めて大きな問題
であった。Conventionally, this ate plate 5
Since the winding structure is required, the number of parts and the number of working steps are large in the winding structure, and this has been a serious problem in the case where the winding operation is automatically and semi-automated. In the actual winding operation, generally, during the winding operation, the spacer 5 for forming the cooling duct is inserted or the electric circuit lead-out lead 32 is joined to the conductor. Each time the winding operation is stopped. Since the continuous winding work is hindered in this manner, the operating rate of the winding machine is reduced, and this is a very serious problem in terms of efficient work.
【０００７】本発明は、前記したような巻線構造の中
で、巻線の自動・半自動化の実現のための阻害要因とな
っている、中間引出しリード板の積層方向の上下に配置
する補強アテ板及びその挿入作業を排除し、かつ、引出
しリード板の角部による絶縁の損傷の心配のない信頼性
の高い巻線構造及び巻線方法を提供することを目的とす
る。According to the present invention, in the above-described winding structure, reinforcement arranged above and below in the laminating direction of the intermediate lead plate, which is an obstacle to realizing automatic and semi-automatic winding, is provided. It is an object of the present invention to provide a highly reliable winding structure and a winding method which eliminate the work of inserting the ate plate and its insertion work and do not have to worry about insulation damage due to corners of the lead-out lead plate.
【０００８】さらに、巻線作業中に、冷却ダクト形成用
スペーサの挿入による巻回作業停止、及び引出しリード
板とシート状導体との接合作業毎の巻回作業停止を極小
とし、効率的で機械稼働率の高い巻線の自動・半自動化
を実現できる巻線方法を提供することを目的とする。Further, during the winding operation, the stopping of the winding operation due to the insertion of the cooling duct forming spacer and the stopping of the winding operation for each joining operation between the extraction lead plate and the sheet conductor areminimized.
And then, an object of the invention to provide an efficient winding method which can realize automatic and semi-automated machine uptime high winding.
【０００９】[0009]
【課題を解決するための手段】本発明による巻線構造
は、巻線の電気回路引出しリードの巻線積層方向の上下
の両面又は一方の面に油ダクトを構成するためのスペー
サを配置している。また、本発明による巻線方法におい
ては、巻線巻回作業工程より前の工程において、油ダク
ト用スペーサは、シート状導体と引出しリード板の接合
作業時と並行して、シート状導体と一緒に巻回される絶
縁素材に固着される。According to the present invention, there is provided a winding structure in which spacers for forming an oil duct are arranged on both upper and lower surfaces or one surface of an electric circuit lead of a winding in the direction of lamination of the winding. I have. Further, in the winding method according to the present invention, in a step prior to the winding winding operation step, the oil duct spacer is provided together with the sheet-shaped conductor in parallel with the joining operation of the sheet-shaped conductor and the lead plate. Is fixed to the insulating material wound around.
【００１０】[0010]
【作用】上記の巻線構造によれば、巻線の自動・半自動
化の実現のための阻害要因となっている引出しリード板
の積層方向の上下に配置する補強アテ板を不要とし、そ
の挿入作業を排除し、かつ引出しリード板の角部による
絶縁の損傷を防止できる。さらに、上記作業により、巻
線作業中に冷却ダクト形成用スペーサの挿入による巻回
作業の停止及び引出しリード板とシート状導体との接合
作業毎の巻回作業の停止を極少とできる。According to the above-mentioned winding structure, there is no need for reinforcing ante plates arranged above and below in the stacking direction of the lead-out lead plates, which are obstructive factors for realizing automatic and semi-automatic winding. Work can be eliminated and insulation damage due to the corners of the lead-out lead plate can be prevented. Further, by the above operation, it is possible to minimize the stop of the winding operation due to the insertion of the cooling duct forming spacer and the stop of the winding operation for each joining operation between the extraction lead plate and the sheet conductor during the winding operation.
【００１１】[0011]
実施例１ 以下、本発明の一実施例の変圧器における巻線引出しリ
ード構造及び巻線方法を説明する。図１は、本発明の一
実施例において、変圧器巻線の巻線中に中間タップ電気
回路引出し用の引出しリード構造をもつ巻線の構造図を
示す。図において２０は巻線、３１，３３はそれぞれ電
気回路の巻始め及び巻終りの引出しリード板であり、４
１，４２はそれぞれ冷却ダクトである。Embodiment 1 Hereinafter, a winding lead structure and a winding method in a transformer according to an embodiment of the present invention will be described. FIG. 1 is a structural view of a winding having a lead lead structure for drawing out an intermediate tap electric circuit in a winding of a transformer winding in one embodiment of the present invention. In the figure, reference numeral 20 denotes a winding, and reference numerals 31 and 33 denote lead plates at the beginning and end of winding of the electric circuit, respectively.
Reference numerals 1 and 42 denote cooling ducts, respectively.
【００１２】引出しリード板３２はシート状導体２に溶
接によって接合されており、その引出しリード板３２の
下面、上面に冷却ダクト４１，４２を形成するためのス
ペーサ５０１，５０２がそれぞれ挿入されている。この
冷却ダクト形成用スペーサ５０１，５０２により、引出
しリード板の角部は絶縁紙とスペーサの厚さ分の距離が
確実に保たれるため、お互いが直接接触することはな
い。即ち、絶縁紙の損傷の恐れはなく、従って補強用の
アテ板を挿入する必要は全くない。The lead-out lead plate 32 is joined to the sheet-like conductor 2 by welding, and spacers 501 and 502 for forming the cooling ducts 41 and 42 are inserted into the lower and upper surfaces of the lead-out lead plate 32, respectively. . By the cooling duct forming spacers 501 and 502, the distance between the insulating paper and the spacer by the thickness of the insulating paper is reliably maintained at the corners of the lead-out lead plate, so that they do not come into direct contact with each other. That is, there is no danger of damaging the insulating paper, and therefore, there is no need to insert a reinforcing plate.
【００１３】なお、通常、冷却ダクト形成用スペーサ５
０１，５０２のピッチは短絡時の機械力により導体であ
るシート状導体が変形するのを防ぐため、機械強度的に
変形を生じない間隔としなければならない。本発明では
冷却ダクト形成部がシート状導体に比べると、機械強度
的に強いリード板面を適用しているためスペーサ５０１
や５０２のピッチは極めて広くとることができる。即
ち、スペーサ５０１，５０２は図ｌのようにリード板３
２の巻回方向端部の両端部の２箇所のみに配置すること
ができる。さらに、冷却ダクトは本来電気回路より発生
する損失熱の放熱面積を確保するものであり、冷却ダク
ト形成用スペーサ数が少なくてすむということは、即
ち、冷却効果が高いことであり、本発明により形成され
た冷却ダクトは極めて冷却特性に優れるものとなる。Normally, a cooling duct forming spacer 5
The pitch of 01 and 502 must be set so that the sheet-shaped conductor, which is a conductor, is not deformed due to mechanical force at the time of short-circuit, so that it is not deformed mechanically. In the present invention, since the cooling duct forming portion uses a lead plate surface that is stronger in mechanical strength than the sheet-shaped conductor, the spacer 501 is used.
And the pitch of 502 can be made very wide. That is, the spacers 501 and 502 are connected to the lead plate 3 as shown in FIG.
2 can be arranged only at two locations at both ends of the winding direction end. Furthermore, the cooling duct is intended to secure a heat radiation area for heat loss generated by the electric circuit, and the number of cooling duct forming spacers is small, that is, the cooling effect is high, and the present invention provides The formed cooling duct has extremely excellent cooling characteristics.
【００１４】図２は、本発明の巻線を巻回するプロセス
を示す概要図である。８は引出しリード板３２とシート
状導体２とを溶接接合する作業工程、９は冷却ダクト用
スペーサを引出しリード板にあわせて挿入できるよう絶
縁紙６に接着固定する作業工程、１０はシート状導体２
が連続して巻回される作業工程を示す。溶接接合作業工
程８にて引出しリード板３１，３２，３３をシート状導
体２に溶接接合するのと同時に冷却ダクト形成用スペー
サ５の貼付け作業が行われるため、この冷却ダクト形成
用スペーサの挿入のために巻回作業を止める必要はな
い。FIG. 2 is a schematic diagram showing the process of winding the winding of the present invention. 8 is a work process of welding and joining the lead-out lead plate 32 and the sheet-like conductor 2; 9 is a work process of bonding and fixing the cooling duct spacer to the insulating paper 6 so that it can be inserted in accordance with the draw-out lead plate; 2
Indicates a work process in which the wire is continuously wound. At the same time that the drawer lead plates 31, 32, and 33 are welded and joined to the sheet-like conductor 2 in the welding joining operation step 8, the cooling duct forming spacers 5 are attached. It is not necessary to stop the winding work.
【００１５】実施例２ なお、上記の実施例では巻線中間引出しリード板へ本発
明を適用した例で説明したが、図３のように巻始め、中
間、及び巻終りの一部又はそれらの全ての場所に適用で
きる。Embodiment 2 In the above embodiment, the present invention has been described as applied to a winding intermediate lead lead plate. However, as shown in FIG. Applicable to all places.
【００１６】実施例３ 図４は、本発明の一実施例において、冷却ダクト形成用
スペーサとして波状スペーサを用いたときの巻線構造図
である。上記では、油ダクトを構成するためのスペーサ
として、矩形断面をもつ１以上のスペーサを配置するこ
ととして説明したが、このスペーサは絶縁紙を波状に成
形した図４のような波状スペーサを使用することもでき
る。Embodiment 3 FIG. 4 is a diagram showing a winding structure when a corrugated spacer is used as a cooling duct forming spacer in an embodiment of the present invention. In the above description, one or more spacers having a rectangular cross section are arranged as spacers for constituting the oil duct. However, as the spacers, wavy spacers as shown in FIG. You can also.
【００１７】[0017]
【発明の効果】本発明は、以上説明したように、巻線の
電気回路引出しリード板の巻線積層方向の上下の両面に
油ダクトを構成するためのスペーサを配置しているの
で、巻線の自動・半自動化の実現のための阻害要因とな
っている引出しリード板の積層方向の上下に配置する補
強アテ板及びその挿入作業を排除でき、かつ、引出しリ
ード板の角部によって絶縁を損傷する心配のない巻線構
造を実現できる。As described above, according to the present invention, since the spacers for forming the oil duct are arranged on both the upper and lower surfaces of the electric circuit lead-out lead plate in the winding lamination direction as described above, Can be eliminated, and the insulation work is damaged by the corners of the lead-out lead plate, which can be eliminated in the stacking direction of the lead-out lead plate, which is an obstacle to the realization of automatic and semi-automated products. It is possible to realize a winding structure that does not have to worry.
【００１８】また、巻線巻回作業工程より前の工程にお
いて、シート状導体と引出しリード板とを接合する作業
工程と並行して、油ダクト用スペーサが絶縁素材に固着
されるので、巻線作業中に冷却ダクト形成用スペーサを
挿入する時の巻回作業停止、及び引出しリード板とシー
ト状導体との接合作業時の巻回停止を極少とし、効率的
な巻線の自動・半自動化を実現できる。Further, in a step prior to the winding winding work step, the oil duct spacer is fixed to the insulating material in parallel with the work step of joining the sheet-shaped conductor and the lead-out lead plate. Efficient automatic and semi-automated winding is minimized by stopping the winding work when inserting the cooling duct forming spacer during the work, and minimizing the winding stop when joining the drawer lead plate and sheet conductor. realizable.
【図１】本発明の一実施例における、冷却ダクト形成用
スペーサを配置した巻線構造図である。FIG. 1 is a winding structure diagram in which cooling duct forming spacers are arranged according to an embodiment of the present invention.
【図２】本発明の一実施例の巻線方法のプロセスを示す
概要図である。FIG. 2 is a schematic diagram showing a process of a winding method according to one embodiment of the present invention.
【図３】本発明の一実施例における、複数の冷却ダクト
形成用スペーサを配置した巻線構造図である。FIG. 3 is a winding structure diagram in which a plurality of cooling duct forming spacers are arranged in one embodiment of the present invention.
【図４】本発明の一実施例において、冷却ダクト形成用
スペーサとして波状スペーサを用いたときの巻線構造図
である。FIG. 4 is a winding structure diagram when a wavy spacer is used as a cooling duct forming spacer in one embodiment of the present invention.
【図５】従来のシート状導体巻線における電気回路用引
出しリード板の構造図である。FIG. 5 is a structural view of a lead plate for an electric circuit in a conventional sheet-shaped conductor winding.
１ 鉄心 ２ シート状導体 ５ 冷却ダクト形成用スペーサ ６ 絶縁紙 ８ 引出しリード板とシート状巻線とを溶接で接合す
る作業工程 ９ 冷却ダクト用スペーサを絶縁紙に接着固定する作
業工程 １０ シート状導体が連続して巻回される作業工程 ２０ 変圧器巻線 ３１ 巻始め引出しリード板 ３２ 中間タップ引出しリード板 ３３ 巻終り引出しリード板 ４１，４２ 冷却ダクト ５１，５２ 引出しリード板上部に挿入される補強
アテ板 ５０１，５０２ 冷却ダクト形成用スペーサ ５０３，５０４ 冷却ダクト形成用波状スペーサDESCRIPTION OF SYMBOLS 1 Iron core 2 Sheet-shaped conductor 5 Cooling duct formation spacer 6 Insulating paper 8 Work process of joining a draw-out lead plate and a sheet winding by welding 9 Work process of bonding and fixing a cooling duct spacer to insulating paper 10 Sheet-shaped conductor 20 Transformer winding 31 Leading-out lead plate 32 Intermediate tap lead-out plate 33 Leading-out lead plate 41, 42 Cooling duct 51, 52 Reinforcement inserted above the lead-out lead plate Atate plate 501,502 Spacer for forming cooling duct 503, 504 Wavy spacer for forming cooling duct
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) H01F 27/28 H01F 41/04──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl.6 , DB name) H01F 27/28 H01F 41/04
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5080690AJP2862055B2 (en) | 1993-04-07 | 1993-04-07 | Winding lead structure and winding method for stationary induction equipment |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5080690AJP2862055B2 (en) | 1993-04-07 | 1993-04-07 | Winding lead structure and winding method for stationary induction equipment |
| Publication Number | Publication Date |
|---|---|
| JPH06295825A JPH06295825A (en) | 1994-10-21 |
| JP2862055B2true JP2862055B2 (en) | 1999-02-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5080690AExpired - LifetimeJP2862055B2 (en) | 1993-04-07 | 1993-04-07 | Winding lead structure and winding method for stationary induction equipment |
| Country | Link |
|---|---|
| JP (1) | JP2862055B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5361815B2 (en)* | 2010-07-07 | 2013-12-04 | 三菱電機株式会社 | Stationary inductor |
| JP6022901B2 (en)* | 2012-11-07 | 2016-11-09 | 東芝産業機器システム株式会社 | COIL, ITS MANUFACTURING DEVICE, AND COIL MANUFACTURING METHOD |
| JP7115432B2 (en)* | 2019-07-19 | 2022-08-09 | 三菱電機株式会社 | Static induction device and static induction device manufacturing method |
| Publication number | Publication date |
|---|---|
| JPH06295825A (en) | 1994-10-21 |
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