JP2010087042A - Stationary induction electric device winding wire - Google Patents

Stationary induction electric device winding wire Download PDF

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JP2010087042A
JP2010087042A JP2008251720A JP2008251720A JP2010087042A JP 2010087042 A JP2010087042 A JP 2010087042A JP 2008251720 A JP2008251720 A JP 2008251720A JP 2008251720 A JP2008251720 A JP 2008251720A JP 2010087042 A JP2010087042 A JP 2010087042A
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horizontal
horizontal spacing
wide
winding
pieces
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Masumi Nakatate
真澄 中楯
Tsuneo Kobayashi
恒夫 小林
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Toshiba Corp
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Toshiba Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a winding wire cooling structure for obtaining a cooling effect without using inner and outer clogging boards with complicated shapes, which ensures the same effect as in using the boards. <P>SOLUTION: A plurality of disk shape winding wires 3, where wire conductors are wound, are coaxially arranged by superimposition between the inner and outer insulating cylinders 1, 2 in a vertical direction, in order to efficiently pass a refrigerant. A plurality of horizontal interval pieces 4 are radially arranged and equally spaced between the vertically adjacent disk shape winding wires 3, so as to radially form a plurality of fan-shaped horizontal cooling passages 5. A plurality of vertical interval pieces 6, 7 are arranged between the inner and outer insulating cylinders 1, 2 and the disk shape winding wires 3, so as to meet the inner and outer circumferences of the horizontal interval pieces. Then, a plurality of inner vertical cooling passages 8 and outer vertical cooling passages 9 are formed in the circumferential direction. Consequently, a plurality of cooling sections of the inner and outer vertical cooling passages 8, 9, which communicate with the plurality of horizontal cooling passages, are formed in the circumferential direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

変圧器やリアクトルなどの静止誘導電器に使用される巻線は、運転時における発熱量が大きい。このため、巻線周辺に冷却路を形成し、この冷却路にＳＦ６ガスなどの気体冷媒や、絶縁油、パーフロロカーボンなどの液体冷媒を流して巻線の冷却を行っている。また、最近では環境低負荷を考慮してＮ２ガス、ＣＯ２ガス、空気、ＣＦ２Ｉガスなどの温暖化係数の小さい気体冷媒や、天然エステル油あるいは難燃性を考慮してシリコン油など、様々な冷媒も使われ始めている。 Windings used in static induction appliances such as transformers and reactors generate a large amount of heat during operation. For this reason, a cooling path is formed around the winding, and the cooling of the winding is performed by flowing a gas refrigerant such as SF 6 gas or a liquid refrigerant such as insulating oil or perfluorocarbon through the cooling path. In recent years, gas refrigerants with small warming factors such as N 2 gas, CO 2 gas, air, CF 2 I gas in consideration of low environmental load, natural ester oil, silicon oil in consideration of flame retardancy, etc. Various refrigerants are beginning to be used.

具体的な巻線冷却構造としては、図１０〜図１２に示すものが一般的である。図１０は変圧器の巻線の平面図、図１１は図１０のＸ−Ｘ断面図及びＹ−Ｙ断面図、図１２は別な巻線構成のＹ−Ｙ断面図である。   As a specific winding cooling structure, those shown in FIGS. 10 to 12 are common. 10 is a plan view of the winding of the transformer, FIG. 11 is an XX sectional view and a YY sectional view of FIG. 10, and FIG. 12 is a YY sectional view of another winding configuration.

図１０と図１１では、内側及び外側絶縁筒１，２の間に素線導体を巻回してなる円板巻線３が同軸状に配置されており、これが垂直方向に複数段積重ねられている。上下に隣接する円板巻線３の間には複数の水平間隔片４が放射状に等間隔で配置されており、これにより複数の扇状の水平冷却路５が放射状に形成される。   In FIG. 10 and FIG. 11, the disk windings 3 formed by winding the wire conductors between the inner and outer insulating cylinders 1 and 2 are coaxially arranged and stacked in a plurality of stages in the vertical direction. . A plurality of horizontal spacing pieces 4 are radially arranged at equal intervals between the upper and lower disk windings 3, thereby forming a plurality of fan-shaped horizontal cooling paths 5 radially.

内側及び外側絶縁筒１，２と円板巻線３の間には複数の垂直間隔片６，７が前記水平間隔片の内外周上に合わせて配置され、周方向に複数の内側垂直冷却路８と外側垂直冷却路９が形成される。すなわち、複数の水平冷却路５を連通する内側及び外側垂直冷却路８，９の冷却区間が巻線の周方向に複数形成される。   Between the inner and outer insulating cylinders 1 and 2 and the disk winding 3, a plurality of vertical spacing pieces 6 and 7 are arranged on the inner and outer peripheries of the horizontal spacing pieces, and a plurality of inner vertical cooling paths in the circumferential direction. 8 and the outer vertical cooling path 9 are formed. That is, a plurality of cooling sections of the inner and outer vertical cooling paths 8 and 9 communicating with the plurality of horizontal cooling paths 5 are formed in the circumferential direction of the winding.

このような冷却構造において、前述の気体冷媒や液体冷媒を内側及び外側垂直冷却路８，９の下部から流入させ、円板巻線３を冷却する。しかし、この構造では水平冷却路５に冷媒が流れにくいため、水平冷却路５における冷却性能が悪い欠点がある。したがって、この構造の適用は、円板巻線３の幅が狭く水平冷却路５が短い場合か、発熱量が少ない場合、あるいは冷却性能の良い液体冷媒の使用時に限られる。   In such a cooling structure, the above-described gas refrigerant or liquid refrigerant is introduced from the lower portions of the inner and outer vertical cooling paths 8 and 9 to cool the disc winding 3. However, this structure has a drawback that the cooling performance in the horizontal cooling path 5 is poor because the refrigerant hardly flows into the horizontal cooling path 5. Therefore, the application of this structure is limited to the case where the width of the disk winding 3 is narrow and the horizontal cooling path 5 is short, the amount of heat generation is small, or the liquid refrigerant having good cooling performance is used.

円板巻線３の幅が長い場合や発熱量が多い場合は、図１２に示す構造が一般的である。この構成は、円板巻線３の複数段毎に内側閉塞板１０と外側閉塞板１１を交互に、かつ、全周に亘って設置している。このようにすることで、垂直冷却路の冷媒が水平冷却路５に流れ込み、円板巻線３の複数段毎に内側から外側へ、外側から内側へとジグザグに流れることになり、表面積の大きい水平冷却路５の冷却性能を向上させることが可能となる。   When the width of the disk winding 3 is long or the amount of heat generated is large, the structure shown in FIG. 12 is common. In this configuration, the inner closing plates 10 and the outer closing plates 11 are alternately installed over the entire circumference for each of a plurality of stages of the disk winding 3. By doing in this way, the refrigerant in the vertical cooling path flows into the horizontal cooling path 5 and flows in a zigzag manner from the inside to the outside and from the outside to the inside for each of the plurality of stages of the disk winding 3, and the surface area is large. The cooling performance of the horizontal cooling path 5 can be improved.

しかし、この構造の欠点は、流れの抵抗である圧力損失が増大することと、図１２の中の矢印で示したように閉塞板１０，１１の上部の流速が遅くなり、局所的に巻線温度が上昇することである。   However, the disadvantage of this structure is that the pressure loss, which is the resistance of the flow, increases, and as shown by the arrows in FIG. The temperature rises.

このため、圧力損失の低減や水平冷却路の流速を均一にする研究がなされており、水平間隔片の数を調整する（特許文献１）、垂直冷却路内に流れを制御する突起などを設置する（特許文献２〜４）、水平冷却路から垂直冷却路へ分流板を張り出して流れを制御する（特許文献５〜８）、周方向の閉塞板位置を上下にずらす（特許文献９）、閉塞板の形状を工夫する（特許文献１０）などの公知例がみられる。しかし、これらのほとんどは気体冷媒に関するものである。   For this reason, researches have been made to reduce pressure loss and to make the flow velocity of the horizontal cooling path uniform. The number of horizontal spacing pieces is adjusted (Patent Document 1), and a protrusion for controlling the flow is installed in the vertical cooling path. (Patent Documents 2 to 4), the flow is controlled by projecting a flow dividing plate from the horizontal cooling path to the vertical cooling path (Patent Documents 5 to 8), and the circumferential closing plate position is shifted up and down (Patent Document 9). There are known examples such as devising the shape of the blocking plate (Patent Document 10). However, most of these relate to gaseous refrigerants.

特開平９−１５３４１５JP-A-9-153415 特開平９−１６２０４０JP-A-9-162040 特開平１０−１０６８４８JP-A-10-106848 特開平１１−１２１２５０JP-A-11-121250 特開平９−１６２０４０JP-A-9-162040 特開平９−１９９３４５JP-A-9-199345 特開平１１−１６８０１４JP-A-11-168014 特開２００１−１４８３１４JP 2001-148314 A 特開２０００−５８３３３JP 2000-58333 A 特開平１１−９７２５１JP-A-11-97251

これらの変圧器巻線では、冷媒の流れを制御するために垂直冷却路８，９に突起や板などの障害物を設置するケースが多いが、その固定方法が問題となる。分流板などの障害物の場合、水平間隔片４を３枚構成とし、中央の間隔片の長さを短くしてそこに板を挟み込むなどの方法が採られる。しかし、垂直冷却路８，９内には垂直間隔片６，７が等間隔で設置されているため、この間隔片を避けた複雑な板形状にする必要がある。   In these transformer windings, there are many cases where obstacles such as protrusions and plates are installed in the vertical cooling paths 8 and 9 in order to control the flow of the refrigerant, but the fixing method becomes a problem. In the case of an obstacle such as a shunt plate, a method is adopted in which three horizontal spacing pieces 4 are configured, the length of the central spacing piece is shortened, and the plate is sandwiched therebetween. However, since the vertical spacing pieces 6 and 7 are installed at equal intervals in the vertical cooling passages 8 and 9, it is necessary to have a complicated plate shape avoiding the spacing pieces.

また、改善のための障害物に起因する問題点以外に、図１２に示した一般的に使用される内側及び外側閉塞板１０，１１は扇形状から複数の垂直間隔片６，７の形状を繰り抜いた複雑な形状であり、製作上の工数増大という問題がある。   In addition to the problems caused by obstacles for improvement, the generally used inner and outer closing plates 10 and 11 shown in FIG. 12 have the shape of a plurality of vertical spacing pieces 6 and 7 from a fan shape. It is a complicated shape that has been pulled out, and there is a problem of increased man-hours in production.

本発明は、上記のような従来技術の問題点を解決し、形状の複雑な内側及び外側閉塞板を使用せずに、使用した場合と同様な冷却効果を得られる巻線冷却構造を有する静止伝導電器巻線を提供することを目的とする。   The present invention solves the problems of the prior art as described above, and has a winding cooling structure having a winding cooling structure that can obtain the same cooling effect as when used without using complicated inner and outer blocking plates. An object is to provide a conductive winding.

上記の目的を達成するため、本発明の静止誘導電器巻線は、内外に配置された内側絶縁筒と外側絶縁筒と、前記２つの絶縁筒の間に複数段積み重ねて配置した円板巻線と、隣接する前記円板巻線の間に複数の水平冷却路を放射線状に形成するように放射状に複数配置し、且つ上下の段が同位置となるように配置した複数段の水平間隔片と、前記内側絶縁筒と前記円板巻線との間に複数個配置して複数の内側垂直冷却路を形成する内側垂直間隔片と、前記外側絶縁筒と前記円板巻線との間に複数個配置して複数の外側垂直冷却路を形成する外側垂直間隔片とからなり、前記水平間隔片は、前記内側垂直冷却路に位置する幅を前記外側垂直冷却路に位置する幅より広くした内側が幅広の水平間隔片と、前記外側垂直冷却路に位置する幅を前記内側垂直冷却路に位置する幅より広くした外側が幅広の水平間隔片とからなることを特徴とする。   In order to achieve the above object, the static induction winding of the present invention comprises an inner insulating tube and an outer insulating tube arranged inside and outside, and a disk winding arranged in a plurality of layers between the two insulating tubes. And a plurality of horizontal spacing pieces arranged radially such that a plurality of horizontal cooling paths are radially formed between adjacent disk windings, and the upper and lower stages are at the same position. A plurality of inner vertical spacing pieces that are arranged between the inner insulating cylinder and the disk winding to form a plurality of inner vertical cooling paths, and between the outer insulating cylinder and the disk winding. A plurality of outer vertical spacing pieces that form a plurality of outer vertical cooling paths, and the horizontal spacing pieces have a width that is positioned in the inner vertical cooling path wider than a width that is positioned in the outer vertical cooling path. A wide horizontal spacing piece on the inner side and a width located in the outer vertical cooling path on the inner side Wherein the outer and wider than a width positioned immediately cooling path comprised of a wide horizontal distance piece.

本発明の他の態様の静止誘導電器巻線は、内外に配置された内側絶縁筒と外側絶縁筒と、前記２つの絶縁筒の間に複数段積み重ねて配置した円板巻線と、隣接する前記円板巻線の間に複数の水平冷却路を放射線状に形成するように放射状に複数配置し、且つ上下の段で同位置となるように配置した複数段の水平間隔片と、前記内側絶縁筒と前記円板巻線との間に複数個配置して複数の内側垂直冷却路を形成する内側垂直間隔片と、前記外側絶縁筒と前記円板巻線との間に複数個配置して複数の外側垂直冷却路を形成する外側垂直間隔片とからなり、前記水平間隔片は、前記内側垂直冷却路に位置する幅を前記外側垂直冷却路に位置する幅より広くした内側が幅広の水平間隔片と、前記外側垂直冷却路に位置する幅を前記内側垂直冷却路に位置する幅より広くした外側が幅広の水平間隔片と、前記外側垂直冷却路に位置する幅と前記内側垂冷却直路に位置する幅が同じである内外が同幅の水平間隔片とからなることを特徴とする。   A static induction winding according to another aspect of the present invention is adjacent to an inner insulating tube and an outer insulating tube arranged inside and outside, and a disk winding arranged in a plurality of layers between the two insulating tubes. A plurality of horizontal spacing pieces arranged radially so as to form a plurality of horizontal cooling paths radially between the disk windings and arranged at the same position in the upper and lower stages, and the inner side A plurality of inner vertical spacing pieces are formed between the insulating cylinder and the disk winding to form a plurality of inner vertical cooling paths, and a plurality of inner vertical spacing pieces are disposed between the outer insulating cylinder and the disk winding. A plurality of outer vertical cooling passages forming an outer vertical cooling passage, wherein the horizontal spacing piece is wider on the inside than the width on the inner vertical cooling passage. A horizontal spacing piece and a width located in the outer vertical cooling path are located in the inner vertical cooling path. A wider horizontal spacing piece that is wider than the outer width, and a width located in the outer vertical cooling path and a width located in the inner vertical cooling straight path are the same as the horizontal spacing piece having the same width. Features.

上記２つの構成を有する本発明によれば、巻線を冷却するために、内側絶縁筒と円板巻線あるいは外側絶縁筒と円板巻線との間に設けられた内側冷却路及び外側冷却路を冷媒が上昇する。このとき、内側垂直冷却路に位置する部分の幅を前記外側垂直冷却路に位置する部分の幅より広くした内側が幅広の水平間隔片により、冷媒は上方に流れにくくなる。このため、一部の冷媒が水平冷却路を通り外周側に流れることになる。また、外周を上昇する冷媒は、前記外側垂直冷却路に位置する部分の幅を前記内側垂直路に位置する部分の幅より広くした外側幅広水平片により、上方に流れにくくなり、一部の冷媒が水平冷却路を外周側から内周側に流れることになる。   According to the present invention having the above two configurations, in order to cool the winding, an inner cooling path and an outer cooling provided between the inner insulating cylinder and the disk winding or between the outer insulating cylinder and the disk winding. The refrigerant goes up the path. At this time, the refrigerant is difficult to flow upward due to the wide horizontal spacing piece whose inside is wider than the width of the portion located in the outer vertical cooling path. For this reason, a part of refrigerant flows through the horizontal cooling path to the outer peripheral side. Further, the refrigerant rising on the outer periphery is less likely to flow upward due to the outer wide horizontal piece in which the width of the portion positioned in the outer vertical cooling path is wider than the width of the portion positioned in the inner vertical path. Flows through the horizontal cooling path from the outer peripheral side to the inner peripheral side.

以上のような構成を有する本発明によれば、閉塞板等を設置しなくても水平冷却路５に冷媒を効率良く流すことができ、巻線の冷却性能を向上させることができる。また、水平間隔片の種類が増加してしまうが、形状の複雑な閉塞板などを用いる必要がなくなるので、結果的に製作上の工数を減らすことも可能となる。   According to the present invention having the above-described configuration, it is possible to efficiently flow the refrigerant through the horizontal cooling path 5 without installing a blocking plate or the like, and to improve the cooling performance of the winding. Further, although the number of types of horizontal spacing pieces increases, it is not necessary to use a block plate having a complicated shape, and as a result, the number of manufacturing steps can be reduced.

以下、本発明に係る静止誘導電器巻線の実施形態を説明する。   Hereinafter, embodiments of the static induction winding according to the present invention will be described.

［第１の実施形態］
［構成］
図１及び図２は本発明の実施形態に係る静止誘導電器巻線の構成図である。図１は変圧器の巻線の垂直断面図であり、図２（ａ）〜（ｃ）は図１のＡ−Ａ，Ｂ−Ｂ及びＣ−Ｃの段の各水平断面図を示している。また、図３〜７は、各水平間隔片の形状を示す図である。 [First Embodiment]
[Constitution]
1 and 2 are configuration diagrams of static induction windings according to an embodiment of the present invention. FIG. 1 is a vertical sectional view of a winding of a transformer, and FIGS. 2A to 2C are horizontal sectional views of stages AA, BB, and CC in FIG. . Moreover, FIGS. 3-7 is a figure which shows the shape of each horizontal space | interval piece.

図１に示すように、本実施形態においては、内側及び外側絶縁筒１，２の間に素線導体を巻回してなる円板巻線３が同軸状に配置されており、この円板巻線３が垂直方向に複数段（図１では２３段）積重ねられている。また、上下に隣接する円板巻線３の間には複数の水平間隔片４ａ〜４ｃが放射状に等間隔で配置されており、これにより図２に示すように複数の扇状の水平冷却路５が円板巻線３の間に放射状に形成される。さらに、内側及び外側絶縁筒１，２と円板巻線３の間には内側及び外側垂直間隔片６，７が配置され、内側及び外側垂直冷却路８，９を形成する。   As shown in FIG. 1, in this embodiment, a disk winding 3 formed by winding a wire conductor between inner and outer insulating cylinders 1 and 2 is arranged coaxially. The line 3 is stacked in a plurality of stages (23 stages in FIG. 1) in the vertical direction. Further, a plurality of horizontal spacing pieces 4a to 4c are radially arranged at equal intervals between the upper and lower disk windings 3 so that a plurality of fan-shaped horizontal cooling paths 5 are arranged as shown in FIG. Are formed radially between the disk windings 3. Further, inner and outer vertical spacing pieces 6 and 7 are disposed between the inner and outer insulating cylinders 1 and 2 and the disk winding 3 to form inner and outer vertical cooling paths 8 and 9.

巻線と各水平片の組合せとしては、巻線下部では、図２（ａ）〜（ｃ）のＡ−Ａ断面、Ｃ−Ｃ断面、Ｂ−Ｂ断面、Ｃ−Ｃ断面の段の順になるように各水平間隔片を配置し、巻線上部ではＡ−Ａ断面の段とＢ−Ｂ断面の段が交互になるように各水平間隔片を配置している。すなわち、巻線上部では１段おきに内側が幅広の水平間隔片４ａと外側が幅広の水平間隔片４ｂを交互に組み合わせたユニットＵｂと、各水平片を巻線下部では２段おき組み合わせたユニットＵａを、複数ユニット分積層している。 As a combination of the winding and each horizontal piece, the lower part of the winding is in the order of the AA cross section, CC cross section, BB cross section, and CC cross section of FIGS. In the upper part of the winding, the horizontal spacing pieces are arranged so that the steps of the AA cross section and the steps of the BB cross section are alternated. That is, in the winding upper combined happened two stages and units U b the inner horizontal distance piece 4a and the outer wide is a combination of wide horizontal distance piece 4b alternately to every other stage, each horizontal strip in the winding lower the unit U a, are stacked a plurality of units min.

図２（ａ）は、内側が幅広の水平間隔片４ａで構成したＡ−Ａ断面の図であり、図２（ｂ）は外側が幅広の水平間隔片４ｂで構成したＢ−Ｂ断面の図であり、図２（ｃ）は内外の幅が同じ水平間隔片で構成したＣ−Ｃ断面の図である。   FIG. 2A is a cross-sectional view taken along the line AA composed of the wide horizontal spacing pieces 4a on the inside, and FIG. 2B is a cross-sectional view taken along the line BB composed of the wide horizontal spacing pieces 4b on the outside. FIG. 2 (c) is a cross-sectional view taken along the line C-C composed of horizontal spacing pieces having the same inner and outer widths.

図２に示すように、Ａ−Ａ，Ｂ−Ｂ及びＣ−Ｃ断面の各段では、内側及び外側絶縁筒１，２と円板巻線３の間には複数の垂直間隔片６，７が前記水平間隔片の内外周上に等間隔に配置される。これらの垂直間隔片６，７により、円板巻線３外側の周方向に複数の内側垂直冷却路８と外側垂直冷却路９が形成される。すなわち、複数の水平冷却路５を連通する内側及び外側垂直冷却路８，９の冷却区間が巻線の周方向に複数形成される。   As shown in FIG. 2, in each stage of the AA, BB and CC cross sections, a plurality of vertical spacing pieces 6, 7 are provided between the inner and outer insulating cylinders 1, 2 and the disk winding 3. Are arranged at equal intervals on the inner and outer peripheries of the horizontal spacing pieces. A plurality of inner vertical cooling paths 8 and outer vertical cooling paths 9 are formed in the circumferential direction outside the disk winding 3 by these vertical spacing pieces 6, 7. That is, a plurality of cooling sections of the inner and outer vertical cooling paths 8 and 9 communicating with the plurality of horizontal cooling paths 5 are formed in the circumferential direction of the winding.

また、巻線のＡ−Ａ断面の段においては、内側垂直冷却路８内に位置する幅を広げた内側が幅広の水平間隔片４ａを周方向に設置する。この内側が幅広の水平間隔片４ａにより、内側垂直冷却路８の中でも流路断面積が狭くなる部分である内側垂直冷却路８ａが形成される。   Moreover, in the step of the AA cross section of the winding, the horizontal spacing piece 4a having a wide inner side with a wider width located in the inner vertical cooling path 8 is installed in the circumferential direction. The inner vertical cooling path 8a, which is a portion of the inner vertical cooling path 8 where the channel cross-sectional area becomes narrower, is formed by the wide horizontal spacing piece 4a.

巻線のＢ−Ｂ断面の段においては、外側垂直冷却路内に位置する幅を広げた外側が幅広の水平間隔片４ｂを周方向に設置する。この外側が幅広の水平間隔片４ｂにより、外側垂直冷却路９の中でも流路断面積が狭くなる部分である内側垂直冷却路９ａが形成される。   In the step of the winding taken along the line B-B, horizontal spacing pieces 4b having a wide outer side and a wider width located in the outer vertical cooling path are installed in the circumferential direction. The outer horizontal cooling strips 4b form the inner vertical cooling passage 9a, which is the portion of the outer vertical cooling passage 9 where the flow passage cross-sectional area is narrowed, by the wide horizontal spacing piece 4b.

巻線のＣ−Ｃ断面の段においては、内側垂直冷却路８内に位置する幅と外側垂直冷却路９内に位置する幅が等しい内外が同幅の水平間隔片４ｃを周方向に設置する。すなわち、水平間隔片４ａ〜４ｃの各水平間隔片は、水平方向から見ると隣り合っている水平間隔片同士は同一形状であり等間隔に設置され、且つ上下の段の水平間隔片と同位置に配置される。   In the stage of the CC cross-section of the winding, horizontal spacing pieces 4c having the same width between the width located in the inner vertical cooling path 8 and the width located in the outer vertical cooling path 9 are installed in the circumferential direction. . That is, each horizontal spacing piece of the horizontal spacing pieces 4a to 4c has the same shape as the horizontal spacing pieces adjacent to each other when viewed from the horizontal direction, and is installed at equal intervals and at the same position as the horizontal spacing pieces on the upper and lower stages Placed in.

図３（ａ）は、図２（ａ）で使用される水平間隔片４ａの平面図であり、図３（ｂ）（ｃ）は、水平間隔片４ａの変形例の平面図である。図４（ａ）は、図２（ｂ）で使用される水平間隔片４ｂの平面図であり、図４（ｂ）（ｃ）は、水平間隔片４ｂの変形例の平面図である。図５（ａ）は、図２（ｃ）で使用される水平間隔片４ｃの平面図であり、図５（ｂ）は、水平間隔片４ｃの変形例の平面図である。   3A is a plan view of the horizontal spacing piece 4a used in FIG. 2A, and FIGS. 3B and 3C are plan views of modified examples of the horizontal spacing piece 4a. 4A is a plan view of the horizontal spacing piece 4b used in FIG. 2B, and FIGS. 4B and 4C are plan views of modified examples of the horizontal spacing piece 4b. Fig.5 (a) is a top view of the horizontal space | interval piece 4c used by FIG.2 (c), FIG.5 (b) is a top view of the modification of the horizontal space | interval piece 4c.

すなわち、図３（ａ）の内側が幅広の水平間隔片４ａの内側垂直冷却路８を塞ぐ部分を水平冷却路５まで広げて、強度を高めたのが図３（ｂ）（ｃ）に示す水平間隔片４ａ’，４ａ”である。図４（ａ）の外側が幅広の水平間隔片４ｂの外側垂直冷却路９を塞ぐ部分を水平冷却路５まで広げて、強度を高めたのが図４（ｂ）（ｃ）に示す水平間隔片４ｂ’，４ｂ”である。また、冷媒が巻線に接触する面積を増やすために、図５（ａ）の内外が同幅の水平間隔片４ｃの水平冷却部に該当する幅を狭くして巻線表面が多く露出するようにしたのが水平間隔片が４ｃ’である。   That is, FIG. 3B and FIG. 3C show that the portion of the horizontal spacing piece 4a having a wide inner side in FIG. 3A that blocks the inner vertical cooling path 8 is expanded to the horizontal cooling path 5 to increase the strength. Horizontal spacing pieces 4a ′ and 4a ″. FIG. 4 (a) is a diagram in which the portion of the wide horizontal spacing piece 4b that covers the outer vertical cooling path 9 is widened to the horizontal cooling path 5 to increase the strength. 4 (b) and 4 (c) are horizontal spacing pieces 4b ′ and 4b ″. Further, in order to increase the area where the refrigerant contacts the winding, the width corresponding to the horizontal cooling portion of the horizontal spacing piece 4c having the same width inside and outside in FIG. The horizontal spacing piece is 4c ′.

［作用・効果］
このような構成とした、本実施形態の静止誘導電器巻線の作用を説明する。
円板巻線３を冷却するために、内側あるいは外側垂直冷却路８，９を冷媒が上昇するが、Ａ−Ａ断面の段においては内側垂直冷却路８ａの流路断面積が狭められているため、冷媒は上方に流れにくくなり、一部の冷媒が水平冷却路５を内周側から外周側に流れる。また、Ｂ−Ｂ断面の段においては外側垂直冷却路の流路断面積が狭められているため、やはり冷媒が上方に流れにくくなり、一部の冷媒が水平冷却路５を外周側から内周側に流れる。 [Action / Effect]
The operation of the static induction winding of this embodiment having such a configuration will be described.
In order to cool the disk winding 3, the refrigerant rises in the inner or outer vertical cooling passages 8 and 9, but the flow passage cross-sectional area of the inner vertical cooling passage 8a is narrowed in the step of the AA cross section. Therefore, the refrigerant hardly flows upward, and a part of the refrigerant flows in the horizontal cooling path 5 from the inner peripheral side to the outer peripheral side. Further, since the flow path cross-sectional area of the outer vertical cooling path is narrowed at the stage of the B-B cross section, the refrigerant also hardly flows upward, and a part of the refrigerant passes through the horizontal cooling path 5 from the outer periphery side to the inner periphery. Flows to the side.

したがって、Ａ−Ａ，Ｂ−Ｂ断面を有する水平間隔片を交互に構成することにより、水平冷却路５を内周側から外周側へ、及び外周側から内周側へ交互に流れが発生する。本実施形態では、巻線下部では円板巻線３の２段おきにＡ−Ａ断面の段とＢ−Ｂ断面の段を交互に構成し、２段おきに流れが反転するジグザグ流れが期待されるため、巻線の冷却性能が図１１で示した従来例よりも向上することがわかる。   Therefore, by alternately forming horizontal spacing pieces having cross sections AA and BB, a flow is alternately generated in the horizontal cooling path 5 from the inner peripheral side to the outer peripheral side and from the outer peripheral side to the inner peripheral side. . In the present embodiment, at the lower part of the winding, a step of the AA cross section and a step of the BB cross section are alternately formed every two stages of the disk winding 3, and a zigzag flow in which the flow is reversed every two stages is expected. Therefore, it can be seen that the cooling performance of the winding is improved as compared with the conventional example shown in FIG.

さらに、巻線上部では円板巻線３の１段おきにＡ−Ａ断面の段とＢ−Ｂ断面の段のを交互に構成しているため、１段おきに流れが反転するジグザグの流れが期待できる。この場合、２段おきに構成した場合と比較して、２段分が１段に流れるために流速が大きくなること、かつ流速も均一になることから、巻線の冷却性能はより大きくなる。図１２で示した従来例では閉塞板の上部で冷媒の流速が遅くなり、局所的に巻線温度が上昇することを考慮すると、本構成は局所的に温度が上昇することはなく、円板巻線３を効率よく冷却することができる。   Furthermore, in the upper part of the winding, every other stage of the disk winding 3 is composed of the AA cross section and the BB cross section alternately, so that the zigzag flow is reversed every other stage. Can be expected. In this case, compared with the case where every two stages are configured, since the two stages flow into one stage, the flow velocity becomes large and the flow velocity becomes uniform, so that the cooling performance of the winding becomes larger. In the conventional example shown in FIG. 12, in consideration of the fact that the flow rate of the refrigerant is slow at the upper part of the closing plate and the winding temperature rises locally, this configuration does not cause the temperature to rise locally. The winding 3 can be efficiently cooled.

従って、本実施形態によれば、水平冷却路５に冷媒を効率良く流すことができ、巻線の冷却性能を向上させることができる。また、水平間隔片の種類が増加してしまうが、形状の複雑な閉塞板などを用いる必要がなくなるので、結果的に製作上の工数を減らすことも可能となる。   Therefore, according to the present embodiment, it is possible to efficiently flow the refrigerant through the horizontal cooling path 5 and to improve the cooling performance of the winding. Further, although the number of types of horizontal spacing pieces increases, it is not necessary to use a block plate having a complicated shape, and as a result, the number of manufacturing steps can be reduced.

また、巻線下部では２段おきに、巻線上部では１段おきに内側が幅広の水平間隔片４ａと外側が幅広の水平間隔片４ｂを交互に配置しているが、３段おきまでの間隔であれば下から上まで同じ間隔で配置しても良好な巻線冷却性能を得ることが可能である。特に、巻線上部の配置間隔を巻線下部のそれより小さくすると、冷媒温度の上昇する上部の水平冷却路５内の冷媒流速を増大させて最高温度を低下させることができる。これにより、効率の良い巻線円板の冷却を行うことができる。   Further, the horizontal spacing pieces 4a having a wide inner side and the horizontal spacing pieces 4b having a wide outer side are alternately arranged every two stages at the lower part of the winding and every other stage at the upper part of the winding. Even if the gaps are arranged at the same interval from the bottom to the top, it is possible to obtain good winding cooling performance. In particular, if the arrangement interval of the upper part of the winding is made smaller than that of the lower part of the winding, the refrigerant flow rate in the upper horizontal cooling path 5 where the refrigerant temperature rises can be increased and the maximum temperature can be lowered. Thereby, the winding disk can be efficiently cooled.

前記内側が幅広の水平間隔片が内側冷却路に占める断面積割合、及び前記外側が幅広の水平間隔片が外側垂直冷却路に占める断面積割合が３０％以下であることを特徴とする。   The cross-sectional area ratio occupied by the inner wide horizontal spacing piece in the inner cooling path and the cross-sectional area ratio occupied by the outer wide horizontal spacing piece in the outer vertical cooling path are 30% or less.

すなわち、図１２の円板巻線の６段ごとに閉塞板を設置した場合の従来例の圧力損失を１とすると、巻線１段当たりでは０．１７であるため、等価である水平間隔片の幅広部の面積割合は４０％（０．４＾２＝０．１６）となる。同様に閉塞板の設置間隔を広くとり巻線１０段おきに閉塞板を設置した場合では、同面積割合は３０％である。これらの理由により、上記態様にいる水平間隔片の幅広部の面積割合を３０％以下とすることで、一般的な従来例よりも圧力損失をさぜることができ、全体流量が減少することもない。   That is, assuming that the pressure loss of the conventional example when a closing plate is installed for every six stages of the disk windings in FIG. The area ratio of the wide portion is 40% (0.4 ^ 2 = 0.16). Similarly, when the installation interval of the obstruction plates is wide and the obstruction plates are installed every 10 stages of the windings, the area ratio is 30%. For these reasons, by setting the area ratio of the wide portion of the horizontal spacing piece in the above aspect to 30% or less, the pressure loss can be controlled as compared with a general conventional example, and the overall flow rate is reduced. Nor.

［第２の実施形態］
［構成］
図８及び図９は本発明の第２の実施形態に係る静止誘導電器巻線の構成図である。図９は変圧器の巻線の垂直断面図、図８は図９のＤ−Ｄ，Ｅ−Ｅ，Ｆ−Ｆ及びＧ−Ｇ断面の各水平断面図を示している。 [Second Embodiment]
[Constitution]
8 and 9 are configuration diagrams of the static induction winding according to the second embodiment of the present invention. 9 is a vertical sectional view of the winding of the transformer, and FIG. 8 is a horizontal sectional view of each of the DD, EE, FF, and GG sections of FIG.

図９に示すように、第２の実施形態においては、内側及び外側絶縁筒１，２の間に素線導体を巻回してなる円板巻線３が同軸状に配置されており、この円板巻線３が垂直方向に複数段（図９では２３段）積重ねられている。また、上下に隣接する円板巻線３の間には複数の水平間隔片４ａ〜４ｃが放射状に等間隔で配置されており、これにより図８に示すように複数の扇状の水平冷却路５が円板巻線３の間に放射状に形成される。さらに、内側及び外側絶縁筒１，２と円板巻線３の間には内側及び外側垂直間隔片６，７が配置され、内側及び外側垂直冷却路８，９を形成する。   As shown in FIG. 9, in the second embodiment, the disk winding 3 formed by winding a wire conductor between the inner and outer insulating cylinders 1 and 2 is arranged coaxially. The plate windings 3 are stacked in a plurality of stages (23 stages in FIG. 9) in the vertical direction. Further, a plurality of horizontal spacing pieces 4a to 4c are radially arranged at equal intervals between the upper and lower disk windings 3 so that a plurality of fan-shaped horizontal cooling paths 5 are arranged as shown in FIG. Are formed radially between the disk windings 3. Further, inner and outer vertical spacing pieces 6 and 7 are disposed between the inner and outer insulating cylinders 1 and 2 and the disk winding 3 to form inner and outer vertical cooling paths 8 and 9.

また、巻線と各水平間隔片との組合せとしては、図９のように、Ｄ−Ｄ，Ｅ−Ｅ，Ｆ−Ｆ，Ｇ−Ｇ断面の段の順になるように各水平間隔片を配置し、これらの組合せをユニットＵｃとして、複数ユニット分積層している。すなわち、複数の水平冷却路５を連通する内側及び外側垂直冷却路８，９から構成される一つの冷却区間において、内側が幅広の水平間隔片４ａ、内外が同幅の水平間隔片４ｃ、外側が幅広の水平間隔片４ｂ、内外が同幅の水平間隔片４ｃの順に下から上へ積み重ねられることになる。さらに、周方向には複数の冷却区間毎にこれらの位置が上下に１段シフトした構成となる。 Further, as a combination of the windings and the horizontal spacing pieces, as shown in FIG. 9, the horizontal spacing pieces are arranged in the order of the DD, EE, FF, and GG cross sections. These combinations are stacked as a unit Uc for a plurality of units. That is, in one cooling section composed of inner and outer vertical cooling paths 8 and 9 communicating with a plurality of horizontal cooling paths 5, the inner horizontal and horizontal spacing pieces 4a, the inner and outer horizontal spacing pieces 4c, and the outer Are stacked in the order of the wide horizontal spacing piece 4b and the inner and outer horizontal spacing pieces 4c in that order. Further, in the circumferential direction, these positions are shifted up and down by one step for each of the plurality of cooling sections.

各断面の水平間隔片の設置方法としては、図８（ａ）で示すように、巻線のＤ−Ｄ断面の段においては、内側が幅広の水平間隔片４ａと内外が同幅の水平間隔片４ｃを周方向に複数枚毎に交互に設置している。図８（ｂ）で示すように、巻線のＥ−Ｅ断面の段においては、Ｄ−Ｄ断面の段の内側が幅広の水平間隔片４ａに相当するところに内外が同幅の水平間隔片４ｃを、同じく内外が同幅の水平間隔片４ｃに相当するところに内側が幅広の水平間隔片４ａを設置している。   As shown in FIG. 8 (a), horizontal spacing pieces 4a having a wide inner side and horizontal spacings having the same width on the inner and outer sides are arranged as shown in FIG. The pieces 4c are alternately arranged in the circumferential direction for every plurality of pieces. As shown in FIG. 8B, in the step of the winding taken along the line E-E, the inner side of the DD cross-section corresponds to the wide horizontal spacing piece 4a, and the inner and outer horizontal spacing pieces have the same width. 4c, a horizontal spacing piece 4a having a wide inner side is provided where the inside and outside correspond to the horizontal spacing piece 4c having the same width.

図８（ｃ）で示すように、Ｆ−Ｆ断面の段においては、Ｅ−Ｅ断面の段の内外が同幅の水平間隔片４ｃに相当するところに外側が幅広の水平間隔片４ｂを、同じく内側が幅広の水平間隔片４ａに相当するところに内外が同幅の水平間隔片４ｃを設置している。図８（ｄ）で示すように、巻線のＧ−Ｇ断面の段においては、Ｆ−Ｆ断面の段の外側が幅広の水平間隔片４ｂに相当するところに内外が同幅の水平間隔片４ｃを、同じく内外が同幅の水平間隔片４ｃに相当するところに外側が幅広の水平間隔片４ｂを設置している。   As shown in FIG. 8C, in the step of the FF cross section, the horizontal interval piece 4b having a wide outer side is formed where the inside and outside of the step of the EE cross section correspond to the horizontal interval piece 4c having the same width. Similarly, horizontal spacing pieces 4c having the same width on the inner and outer sides are provided at positions corresponding to the wide spacing spacing pieces 4a on the inner side. As shown in FIG. 8D, in the step of the winding GG cross section, the outer side of the FF cross section corresponds to the wide horizontal spacing piece 4b, and the inner and outer horizontal spacing pieces have the same width. 4c, a horizontal spacing piece 4b having a wider outer side is provided where the inner and outer sides correspond to the horizontal spacing piece 4c having the same width.

また、一例として第２の実施形態では、内側が幅広の水平間隔片４ａ及び外側が幅広の水平間隔片４ｂと内外が同幅の水平間隔片４ｃを周方向に複数枚設置したが、内側が幅広の水平間隔片４ａ及び外側が幅広の水平間隔片４ｂの２種類のみを複数枚交互に配置しても良い。   As an example, in the second embodiment, a plurality of horizontal spacing pieces 4a having a wide inner side, a wide horizontal spacing piece 4b having a wide outer side, and a horizontal spacing piece 4c having the same width on the inner and outer sides are disposed in the circumferential direction. Only two types of the wide horizontal spacing pieces 4a and the wide horizontal spacing pieces 4b on the outside may be alternately arranged.

［作用・効果］
このような構成とした第２の実施形態の静止誘導電器巻線では、内側が幅広の水平間隔片４ａや外側が幅広の水平間隔片４ｂによって、垂直冷却路の流路断面積が狭くなり水平冷却路５の流速が大きくなる複数の冷却区間と、内外が同幅の水平間隔片４ｃによって、流路断面積が変わらない複数の冷却区間が隣り合わせになっている。そのため後者の区間で多少温度が上昇しても前者の区間まで巻線素線の熱伝導で周方向に熱が移動し、結果的に均一に巻線を冷却することができる。 [Action / Effect]
In the static induction winding of the second embodiment having such a configuration, the cross-sectional area of the vertical cooling path is reduced by the horizontal spacing piece 4a having a wide inner side and the horizontal spacing piece 4b having a wide outer side, so that the horizontal cross-sectional area becomes horizontal. A plurality of cooling sections in which the flow velocity of the cooling path 5 is increased and a plurality of cooling sections in which the cross-sectional area of the flow path does not change are adjacent to each other by the horizontal spacing pieces 4c having the same width inside and outside. For this reason, even if the temperature rises somewhat in the latter section, heat is transferred in the circumferential direction to the former section by heat conduction of the winding wire, and as a result, the winding can be cooled uniformly.

この第２の実施形態によれば、内側が幅広及び外側が幅広の水平間隔片４ａ，４ｂの挿入間隔が広い場合でも、巻線内の周方向の熱の流れを利用して巻線を冷却でき、冷却性能を向上させることが可能となる。また、水平冷却路５の周方向に複数枚毎に、内側が幅広の水平間隔片４ａと外側が幅広の水平間隔片４ｂを交互に放射状に設置した場合でも、同様な効果を得ることができる。   According to the second embodiment, the winding is cooled by utilizing the flow of heat in the circumferential direction even in the case where the horizontal interval pieces 4a and 4b having a wide inner side and a wide outer side have a wide insertion interval. It is possible to improve the cooling performance. Further, the same effect can be obtained even when the horizontal spacing pieces 4a having a wide inner side and the horizontal spacing pieces 4b having a wide outer side are alternately arranged radially in the circumferential direction of the horizontal cooling path 5. .

［第３の実施形態］
［構成］
第３の実施形態は、前記第１及び第２の実施形態における水平間隔片の構成に改良を施したものである。以下、その水平間隔片部分について説明する。図６及び図７は、本発明の第３の実施形態に係る静止誘導電器巻線の水平間隔片の断面図である。図６は、内側が幅広の水平間隔片４ａ，４ａ’，４ａ”を巻線の内側または外側から見ている断面図であり、図７は、外側が幅広の水平間隔片４ｂ，４ｂ’，４ｂ”を巻線の内側または外側から見ている断面図である。 [Third Embodiment]
[Constitution]
In the third embodiment, the configuration of the horizontal spacing piece in the first and second embodiments is improved. Hereinafter, the horizontal interval piece will be described. 6 and 7 are cross-sectional views of horizontal spacing pieces of a static induction winding according to the third embodiment of the present invention. FIG. 6 is a cross-sectional view of the wide horizontal spacing pieces 4a, 4a ′, 4a ″ as viewed from the inside or the outside of the winding, and FIG. 7 is a horizontal spacing pieces 4b, 4b ′, It is sectional drawing which sees 4b "from the inner side or the outer side of a coil | winding.

すなわち、図６（ａ）は、水平間隔片上部から、内側が幅広の水平間隔片４ａ，４ａ’または４ａ”、内外が同幅の水平間隔片４ｃ、４ｃ’、内外が同幅の水平間隔片４ｃ、４ｃ’の順に積み重ねた例である。図６（ｂ）は、水平間隔片上部から、内側が幅広の水平間隔片４ａ，４ａ’または４ａ”、内側が幅広の水平間隔片４ａ，４ａ’または４ａ”、内外が同幅の水平間隔片４ｃ，４ｃ’の順に積み重ねた例である。   That is, FIG. 6A shows a horizontal interval piece 4a, 4a ′ or 4a ″ having a wide inside from the top of the horizontal interval piece, a horizontal interval piece 4c, 4c ′ having the same width inside and outside, and a horizontal interval having the same width inside and outside. 6B is an example in which the pieces 4c and 4c ′ are stacked in this order. FIG. 6 (b) shows a horizontal interval piece 4a, 4a ′ or 4a ″ having a wide inside from the top of the horizontal interval piece, and a horizontal interval piece 4a having a wide inside. This is an example in which 4a ′ or 4a ″ and horizontal spacing pieces 4c and 4c ′ having the same width are stacked in this order.

また、図７（ａ）は、水平間隔片上部から、外側が幅広の水平間隔片４ｂ，４ｂ’または４ｂ”、内外が同幅の水平間隔片４ｃ，４ｃ’の順に積み重ねた例である。図７（ｂ）は、水平間隔片上部から、内外が同幅の水平間隔片４ｃ，４ｃ’、外側が幅広の水平間隔片４ｂ，４ｂ’または４ｂ”、内外が同幅の水平間隔片４ｃ，４ｃ’の順に積み重ねた例である。   FIG. 7A shows an example in which the horizontal interval pieces 4b, 4b ′ or 4b ″ having a wider outer side and the horizontal interval pieces 4c, 4c ′ having the same width are stacked in this order from the top of the horizontal interval piece. FIG. 7B shows horizontal spacing pieces 4c and 4c ′ having the same width inside and outside from the top of the horizontal spacing pieces, wide horizontal spacing pieces 4b, 4b ′ or 4b ″ on the outside and horizontal spacing pieces 4c having the same width on the inside and outside. , 4c ′.

［作用・効果］
このような構成とした、第３の実施形態の静止誘導電器巻線の作用を説明する。
静止誘導電器巻線の巻線間に挿入する各水平間隔片４ａ〜４ｃは、図３〜図５に示すような平面形状を有する一枚の部材でも良い。しかし、第３の実施形態では、薄板からなる水平間隔片を複数枚（一例として３枚）重ね合わせて、巻線間に挿入する。この場合、重ね合わせる水平間隔片は、各段ごとに同一形状としても良いが、図６，７に示すように異なる形状のものを重ね合わせることができる。すなわち、内側が幅広の水平間隔片４ａ及び外側が幅広の水平間隔片４ｂでは、巻線の外周と内周とで異なった流路が形成されればよい。同様に、３枚以上重ね合わせる場合は、最下部が内外が同幅の水平間隔片４ｃ、４ｃ’であれば、内側が幅広の水平間隔片４ａ及び外側が幅広の水平間隔片４ｂでもよい。 [Action / Effect]
The operation of the static induction winding of the third embodiment having such a configuration will be described.
Each horizontal spacing piece 4a-4c inserted between the windings of the stationary induction winding may be a single member having a planar shape as shown in FIGS. However, in the third embodiment, a plurality of (three by way of example) horizontal spacing pieces made of thin plates are overlapped and inserted between the windings. In this case, the horizontal interval pieces to be overlapped may have the same shape for each stage, but those having different shapes can be overlapped as shown in FIGS. That is, in the horizontal spacing piece 4a having a wide inner side and the horizontal spacing piece 4b having a wide outer side, different flow paths may be formed on the outer periphery and the inner periphery of the winding. Similarly, when three or more sheets are overlapped, if the lowermost part is a horizontal spacing piece 4c, 4c ′ having the same width inside and outside, a wide horizontal spacing piece 4a on the inside and a wide horizontal spacing piece 4b on the outside may be used.

第３の実施形態によれば、内側及び外側垂直冷却路を流れてきた冷媒が、内側及び外側が幅広の水平間隔片の幅が広くなった部分により、上方に流れにくくなり一部の冷媒が水平冷却路５に流れることになる。この時、内側及び外側が幅広の水平間隔片の最下部が内外が同幅の水平間隔片４ｃ、４ｃ’とした複数枚の水平間隔を積層した水平間隔片とすると、内側及び外側が幅広の水平間隔片４ａ，４ｂの部分では、冷媒は上方に流れにくくなり、一方、同幅の水平間隔片４ｃ、４ｃ’の部分では、冷媒が水平冷却路に流れる。   According to the third embodiment, the refrigerant that has flowed through the inner and outer vertical cooling paths is less likely to flow upward due to the wide width of the horizontal spacing pieces that are wider on the inner and outer sides, and some of the refrigerant is It flows to the horizontal cooling path 5. At this time, when the inner and outer horizontal spacing pieces are the horizontal spacing pieces in which the lowermost portion of the horizontal spacing pieces 4c and 4c ′ having the same width at the inner and outer sides are stacked, the inner and outer sides are wide. In the horizontal interval pieces 4a and 4b, the refrigerant hardly flows upward, while in the horizontal interval pieces 4c and 4c ′ having the same width, the refrigerant flows in the horizontal cooling path.

従って、平面形状を有する一枚の部材とした場合や同一形状の水平間隔片を複数枚積層した場合にくらべて、水平冷却路５に冷媒を効率よく流すことができ、巻線の冷却性能を向上させることができる。   Therefore, compared with the case of a single member having a planar shape or a case where a plurality of horizontally spaced pieces of the same shape are stacked, the refrigerant can flow efficiently through the horizontal cooling path 5, and the cooling performance of the windings can be improved. Can be improved.

［その他の実施形態］
本発明は、前記各実施形態に限定されるものではなく、前記内側が幅広の水平間隔片と前記外側が幅広の水平間隔片の設置間隔は巻線下部より上部のほうが狭いこと、あるいは、これらの水平間隔片の垂直冷却路に占める断面積割合は巻線下部より上部のほうが大きいものとすることもできる。このような構成とすれば、断面積割合が大きい部分では、断面積割合が小さい部分より水平冷却路の冷媒流速を増大させることができる。すなわち、冷媒の温度上昇する巻線上部の水平冷却路の冷媒流速を増大させて、円板巻線の最高温度を低下させることができ、冷却効率を上昇することができる。
[Other Embodiments]
The present invention is not limited to each of the above embodiments, and the installation interval of the horizontal gap piece having the wide inner side and the horizontal gap piece having the wide outer side is narrower in the upper part than the lower part of the winding, or these The cross-sectional area ratio of the horizontal spacing piece in the vertical cooling path may be larger in the upper part than in the lower part of the winding. With such a configuration, the refrigerant flow rate in the horizontal cooling path can be increased in the portion where the cross-sectional area ratio is large compared to the portion where the cross-sectional area ratio is small. That is, it is possible to increase the refrigerant flow rate in the horizontal cooling path on the upper part of the winding where the temperature of the refrigerant rises, to lower the maximum temperature of the disk winding, and to increase the cooling efficiency.

本発明の第１実施形態に係る静止誘導電器巻線の各部の構成を示す垂直断面図Vertical sectional view showing the configuration of each part of the static induction winding according to the first embodiment of the present invention 図１の巻線の水平断面図Horizontal sectional view of the winding of FIG. 静止誘導電器巻線の内側が幅広の水平間隔片の詳細を示す平面図Plan view showing details of horizontal spacing piece with wide inside of static induction winding 静止誘導電器巻線の外側が幅広の水平間隔片の詳細を示す平面図Plan view showing details of horizontal spacing piece with wide outside of static induction winding 静止誘導電器巻線の内外が同幅の水平間隔片の詳細を示す平面図Plan view showing details of horizontal spacing piece with same width inside and outside of static induction winding 第３の実施形態に係る静止誘導電器巻線の内側が幅広の水平間隔片の断面図Sectional drawing of the horizontal space | interval piece whose inner side of the static induction winding which concerns on 3rd Embodiment is wide 第３の実施形態に係る静止誘導電器巻線の外側が幅広の水平間隔片の断面図Sectional drawing of the horizontal space | interval piece where the outer side of the static induction winding which concerns on 3rd Embodiment is wide 図１の巻線に使用する本発明の第２の実施形態に係る静止誘導電器巻線の構成を示す水平断面図1 is a horizontal sectional view showing the configuration of a static induction winding according to a second embodiment of the present invention used for the winding of FIG. 図８の巻線の垂直断面図Vertical sectional view of the winding of FIG. 従来の静止誘導電器巻線の一例を示す水平断面図Horizontal sectional view showing an example of a conventional static induction winding 図１０のＸ−Ｘ断面図及びＹ−Ｙ断面図XX sectional view and YY sectional view of FIG. 図１０の別な巻線の構成のＹ−Ｙ断面図YY cross-sectional view of another winding configuration of FIG.

符号の説明Explanation of symbols

１…内側絶縁筒
２…外側絶縁筒
３…円板巻線
４ａ，４ａ’，４ａ”…内側が幅広の水平間隔片
４ｂ，４ｂ’，４ｂ”…外側が幅広の水平間隔片
４ｃ，４ｃ’…内外が同幅の水平間隔片
５…水平冷却路
６…内側垂直間隔片
７…外側垂直間隔片
８…内側垂直冷却路
９…外側垂直冷却路
１０…内側閉塞板
１１…外側閉塞板
DESCRIPTION OF SYMBOLS 1 ... Inner insulating cylinder 2 ... Outer insulating cylinder 3 ... Disc winding 4a, 4a ', 4a "... Wide horizontal spacing piece 4b, 4b', 4b" ... Wide outer horizontal spacing piece 4c, 4c ' ... Horizontal spacing piece with the same width inside and outside 5 ... Horizontal cooling path 6 ... Inner vertical spacing piece 7 ... Outside vertical spacing piece 8 ... Inner vertical cooling path 9 ... Outer vertical cooling path 10 ... Inner closing plate 11 ... Outer closing plate

Claims (10)

内外に配置された内側絶縁筒と外側絶縁筒と、
前記２つの絶縁筒の間に複数段積み重ねて配置した円板巻線と、
隣接する前記円板巻線の間に複数の水平冷却路を放射線状に形成するように放射状に複数配置し、且つ上下の段で同位置となるように配置した複数段の水平間隔片と、
前記内側絶縁筒と前記円板巻線との間に複数個配置して複数の内側垂直冷却路を形成する内側垂直間隔片と、
前記外側絶縁筒と前記円板巻線との間に複数個配置して複数の外側垂直冷却路を形成する外側垂直間隔片と、
からなる静止誘導電器巻線において、
前記水平間隔片は、
前記内側垂直冷却路に位置する幅を前記外側垂直冷却路に位置する幅より広くした内側が幅広の水平間隔片と、
前記外側垂直冷却路に位置する幅を前記内側垂直冷却路に位置する幅より広くした外側が幅広の水平間隔片とからなることを特徴とする静止誘導電器巻線。 An inner insulating tube and an outer insulating tube arranged inside and outside;
Disc windings arranged in a plurality of layers between the two insulating cylinders;
A plurality of horizontal spacing pieces arranged radially so as to form a plurality of horizontal cooling paths radially between adjacent disk windings, and arranged at the same position in the upper and lower stages;
A plurality of inner vertical spacing pieces that are arranged between the inner insulating cylinder and the disk winding to form a plurality of inner vertical cooling paths;
A plurality of outer vertical spacing pieces that are arranged between the outer insulating cylinder and the disk winding to form a plurality of outer vertical cooling paths;
In a static induction winding consisting of
The horizontal spacing piece is
A horizontal spacing piece having a wider inside, the width of the inner vertical cooling path being wider than the width of the outer vertical cooling path;
A static induction winding, characterized in that the outer vertical cooling path is wider than the width positioned in the inner vertical cooling path, and has a wide horizontal spacing piece on the outer side. 前記水平間隔片の各段は、それぞれ同じ形状の水平間隔片のみで構成し、
前記内側が幅広の水平間隔片を並べた内側幅広段と前記外側が幅広の水平間隔片を並べた外側幅広段を１段ずつ交互に設置することを特徴とする請求項１に記載の静止誘導電器巻線。 Each stage of the horizontal spacing piece is composed of only horizontal spacing pieces of the same shape,
The stationary induction according to claim 1, wherein the inner wide stage in which the inner wide horizontal spacing pieces are arranged and the outer wide stage in which the outer wide horizontal spacing pieces are arranged are alternately arranged one by one. Electrical winding. 前記複数段水平間隔片は、前記内側が幅広の水平間隔片と前記外側が幅広の水平間隔片を交互に組み合わせた段を含み、
前記水平間隔片を組み合わせた段の前記内側が幅広の水平間隔片と前記外側が幅広の水平間隔片の位置が重ならないように１段ずつ交互に設置することを特徴とする請求項１に記載の静止誘導電器巻線。 The multi-stage horizontal spacing piece includes a stage in which the inner side wide horizontal spacing piece and the outer side wide horizontal spacing piece are alternately combined,
2. The apparatus according to claim 1, wherein the horizontal gap pieces that are combined with the horizontal gap pieces are alternately arranged one by one so that the positions of the wide horizontal gap pieces on the inner side and the wide horizontal gap pieces on the outer side do not overlap. Stationary induction winding. 内外に配置された内側絶縁筒と外側絶縁筒と、
前記２つの絶縁筒の間に複数段積み重ねて配置した円板巻線と、
隣接する前記円板巻線の間に複数の水平冷却路を放射線状に形成するように放射状に複数配置し、且つ上下の段で同位置となるように配置した複数段の水平間隔片と、
前記内側絶縁筒と前記円板巻線との間に複数個配置して複数の内側垂直冷却路を形成する内側垂直間隔片と、
前記外側絶縁筒と前記円板巻線との間に複数個配置して複数の外側垂直冷却路を形成する外側垂直間隔片と、
からなる静止誘導電器巻線において、
前記水平間隔片は、
前記内側垂直冷却路に位置する幅を前記外側垂直冷却路に位置する幅より広くした内側が幅広の水平間隔片と、
前記外側垂直冷却路に位置する幅を前記内側垂直冷却路に位置する幅より広くした外側が幅広の水平間隔片と、
前記外側垂直冷却路に位置する幅と前記内側垂冷却直路に位置する幅が同じである内外が同幅の水平間隔片とからなることを特徴とする静止誘導電器巻線。 An inner insulating tube and an outer insulating tube arranged inside and outside;
Disc windings arranged in a plurality of layers between the two insulating cylinders;
A plurality of horizontal spacing pieces arranged radially so as to form a plurality of horizontal cooling paths radially between adjacent disk windings, and arranged at the same position in the upper and lower stages;
A plurality of inner vertical spacing pieces that are arranged between the inner insulating cylinder and the disk winding to form a plurality of inner vertical cooling paths;
A plurality of outer vertical spacing pieces that are arranged between the outer insulating cylinder and the disk winding to form a plurality of outer vertical cooling paths;
In a static induction winding consisting of
The horizontal spacing piece is
A horizontal spacing piece having a wider inside, the width of the inner vertical cooling path being wider than the width of the outer vertical cooling path;
A horizontal spacing piece having a wider outer width that is wider than the width located in the inner vertical cooling path, the width located in the outer vertical cooling path;
A static induction winding, characterized in that a width located in the outer vertical cooling path and a width located in the inner vertical cooling straight path are the same, and the inside and outside are composed of horizontal spacing pieces of the same width. 前記水平間隔片の各段は、それぞれ同じ形状の水平間隔片のみで構成し、
前記内側が幅広の水平間隔片を並べた内側幅広段と前記外側が幅広の水平間隔片を並べた外側幅広段を所定の段ずつユニットとして交互に設置し、
ユニット間には前記内外が同幅の水平間隔片を並べた内外同幅段を設置することを特徴とする請求項４に記載の静止誘導電器巻線。 Each stage of the horizontal spacing piece is composed of only horizontal spacing pieces of the same shape,
The inner wide stage in which the inner horizontal wide strips are arranged and the outer wide stage in which the outer horizontal wide strips are arranged are alternately installed as a unit by a predetermined stage,
5. The stationary induction coil winding according to claim 4, wherein an inner and outer same width step in which horizontal spacing pieces having the same width are arranged between the units is installed between the units. 前記複数段水平間隔片は、前記内側が幅広の水平間隔片と前記外側が幅広の水平間隔片と内外が同幅の水平間隔片を所定のパターンで組み合わせた段を含み、
前記所定のパターンで組み合わせた段を所定の段ずつユニットとして交互に設置し、
ユニット間には前記内外が同幅の水平間隔片を並べた内外同幅段を設置することを特徴とする請求項４に記載の静止誘導電器巻線。 The multi-stage horizontal spacing piece includes a stage in which the inner horizontal wide spacing piece, the outer wide horizontal spacing piece, and the inner and outer horizontal spacing pieces are combined in a predetermined pattern,
The steps combined in the predetermined pattern are alternately installed as a predetermined step unit,
5. The stationary induction coil winding according to claim 4, wherein an inner and outer same width step in which horizontal spacing pieces having the same width are arranged between the units is installed between the units. 前記水平間隔片は、薄板状の部材を厚さ方向に複数枚積層して構成したことを特徴とする請求項１〜６のいずれか１項に記載の静止誘導電器巻線。   The static induction winding according to any one of claims 1 to 6, wherein the horizontal spacing piece is formed by laminating a plurality of thin plate-like members in a thickness direction. 前記内側が幅広の水平間隔片、及び前記外側が幅広の水平間隔片において、
複数枚積層したうちの最下部の部材は、内外が同幅であることを特徴とする請求項７に記載の静止誘導電器巻線。 In the horizontal spacing piece having a wide inside, and the horizontal spacing piece having a wide outside,
8. The static induction winding according to claim 7, wherein the lowermost member among the plurality of laminated layers has the same width inside and outside. 前記内側が幅広の水平間隔片が内側垂直冷却路に占める断面積割合、及び前記外側が幅広の水平間隔片が外側垂直冷却路に占める断面積割合が３０％以下であることを特徴とする請求項１〜８のいずれか１項に記載の静止誘導電器巻線。   The cross-sectional area ratio occupied by the inner wide horizontal spacing piece in the inner vertical cooling path and the cross-sectional area ratio occupied by the outer wide horizontal spacing piece in the outer vertical cooling path are 30% or less. Item 9. The static induction winding according to any one of Items 1 to 8. 前記内側が幅広の水平間隔片と前記外側が幅広の水平間隔片の設置間隔は巻線下部より上部のほうが狭いこと、あるいは、これらの水平間隔片の垂直冷却路に占める断面積割合は巻線下部より上部のほうが大きいことを特徴とする請求項第１〜９項のいずれか１項に記載の静止誘導電器巻線。   The installation interval between the wide horizontal spacing piece on the inside and the wide horizontal spacing piece on the outside is narrower in the upper part than the lower part of the winding, or the cross-sectional area ratio of these horizontal spacing pieces in the vertical cooling path is the winding. The static induction winding according to any one of claims 1 to 9, wherein an upper portion is larger than a lower portion.
JP2008251720A 2008-09-29 2008-09-29 Stationary induction electric device winding wire Pending JP2010087042A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118729A (en) * 1977-03-26 1978-10-17 Hitachi Ltd Winding for static induction equipment
JPS54104531A (en) * 1978-02-06 1979-08-16 Hitachi Ltd Electric winding
JPS556105Y2 (en) * 1975-02-03 1980-02-12
JPS55164823U (en) * 1979-05-15 1980-11-27
JPS5993117U (en) * 1982-12-14 1984-06-25 三菱電機株式会社 Center-oriented spacer between coil sections of stationary induction electrical equipment
JPS6260020U (en) * 1985-10-03 1987-04-14

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556105Y2 (en) * 1975-02-03 1980-02-12
JPS53118729A (en) * 1977-03-26 1978-10-17 Hitachi Ltd Winding for static induction equipment
JPS54104531A (en) * 1978-02-06 1979-08-16 Hitachi Ltd Electric winding
JPS55164823U (en) * 1979-05-15 1980-11-27
JPS5993117U (en) * 1982-12-14 1984-06-25 三菱電機株式会社 Center-oriented spacer between coil sections of stationary induction electrical equipment
JPS6260020U (en) * 1985-10-03 1987-04-14

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