JPH09163655A - Stator winding of rotating electric machine, and its manufacture - Google Patents

Stator winding of rotating electric machine, and its manufacture

Info

Publication number
JPH09163655A
JPH09163655A JP32073495A JP32073495A JPH09163655A JP H09163655 A JPH09163655 A JP H09163655A JP 32073495 A JP32073495 A JP 32073495A JP 32073495 A JP32073495 A JP 32073495A JP H09163655 A JPH09163655 A JP H09163655A
Authority
JP
Japan
Prior art keywords
resin
stator winding
clip
cooling water
wire
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
JP32073495A
Other languages
Japanese (ja)
Inventor
Katsune Zaitsu
津 克 根 財
Kazuo Tashiro
代 和 夫 田
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP32073495A priority Critical patent/JPH09163655A/en
Publication of JPH09163655A publication Critical patent/JPH09163655A/en
Pending legal-status Critical Current

Links

Landscapes

  • Windings For Motors And Generators (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent the leakage phenomena of cooling water by charging resin into the space between the ends of element wires constituting a stator winding. SOLUTION: Instantaneously drying resin 22 is charged among the ends of the element wires 4 of a stator winding 3 with a resin charger 17. That is, the instantaneously drying resin 22 in liquid form is put in a resin reservoir 17, and a hollow pipe 14 is led through into a clip 5 from a cooling water port 13, and an ultrathin resin injection port 14a is made to front on the end 21 of the element wire of the stator winding 3. Likewise, a fiber scope 20 is led through into a clip 5 from the cooling water port 13, too, so as to front on the end of the element wire, and the work is advanced while visually checking the sections among the end of the element wires 4 or thereabouts. The liquid-form instantaneously drying resin 22 is injected into the space 23 among the ends of the element wires, while being shifted manually, from a resin injection port 14 by pushing in a press-fitting tube 16. Hereby, the space 23 among the element wires is blocked with resin 22 and the penetration of water is checked.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は回転電機の固定子巻
線とその製作方法に係り、特に固定子巻線の素線とクリ
ップ間のロウ付け作業におけるロウ付け部位の内在欠陥
に起因するロウ付け部位の腐食発生を防止するための回
転電機の固定子巻線とその製作方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator winding of a rotary electric machine and a method for manufacturing the same, and particularly to a brazing wire caused by an internal defect in a brazing portion in a brazing operation between a wire of a stator winding and a clip. The present invention relates to a stator winding of a rotating electric machine and a method of manufacturing the stator winding for preventing corrosion of a mounting portion.

【0002】[0002]

【従来の技術】固定子巻線を純水により直接冷却する方
式の回転電機の一般的な固定子の構造を図3に示す。こ
の固定子の固定子巻線の端部外観を図4に示す。さらに
図4における構成部品の組立構成図を図5に示す。図3
〜図5に示す固定子は固定子枠1に取付けられた固定子
鉄心2を備えている。固定子鉄心2には複数のスロット
が形成され、このスロット内に複数の固定子巻線3が挿
入されている。固定子巻線3は複数個の素線4から構成
されている。この素線4には純水からなる冷却水を通流
させるため一般的には中空素線が使用されている。なか
には中空素線を中実素線と混合して使用する場合もあ
る。これらの素線4の両端部には素線に冷却水を供給
し、かつ電気的接続を行うためのクリップ5が取り付け
られている。このクリップ5には、冷却水の流路を形成
するために、冷却水を供給したり排出したりするための
接続管6、大地から電気的に絶縁しながら冷却水の流路
の一部を形成する絶縁接続管7、および冷却水を各固定
子巻線へ分岐したり集合したりするためのへッダーパィ
プ8が取付けられる。さらに、上下の固定子巻線相互間
には両巻線を電気的に接続する接続片9が設けられてい
る。素線4とクリップ5の接続であるが、それは図5に
示すように、クリップ5の片端部に加工された切欠き開
口部10に素線4の端部を挿入し、当て板11を切欠き
開口部10に嵌合し、かつ各素線4間およぴクリップ5
と素線4間にロウ材12を配置し、加熱によりロウ材1
2を溶かして素線4とクリップ5を一体に接合する。こ
のロウ付け作業における加熱には一般にバーナや高周波
加熱装置が用いられている。
2. Description of the Related Art FIG. 3 shows a structure of a general stator of a rotary electric machine of a type in which a stator winding is directly cooled with pure water. The external appearance of the end of the stator winding of this stator is shown in FIG. Further, FIG. 5 shows an assembly configuration diagram of the components in FIG. FIG.
The stator shown in FIG. 5 includes a stator core 2 attached to a stator frame 1. A plurality of slots are formed in the stator core 2, and a plurality of stator windings 3 are inserted in the slots. The stator winding 3 is composed of a plurality of wires 4. A hollow element wire is generally used for passing cooling water made of pure water through the element wire 4. In some cases, hollow wires may be mixed with solid wires for use. Clips 5 for supplying cooling water to the wires and making electrical connections are attached to both ends of these wires 4. The clip 5 has a connection pipe 6 for supplying and discharging cooling water to form a cooling water flow path, and a part of the cooling water flow path while electrically insulating from the ground. An insulating connecting pipe 7 to be formed and a header pipe 8 for branching or collecting cooling water to each stator winding are attached. Further, a connecting piece 9 is provided between the upper and lower stator windings to electrically connect both windings. As shown in FIG. 5, the wire 4 and the clip 5 are connected by inserting the end of the wire 4 into a notch opening 10 formed in one end of the clip 5 and cutting the caul plate 11. It fits in the notch opening 10 and between each wire 4 and the clip 5.
The brazing material 12 is placed between the wire 4 and the wire 4, and the brazing material 1 is heated.
2 is melted and the wire 4 and the clip 5 are integrally joined. A burner or a high frequency heating device is generally used for heating in the brazing work.

【0003】良く知られているように、ロウ付け作業を
全うするためには、前処理として部品表面に付着した油
や酸化スケールなどの汚れの除去、ロウ付けする部品間
の均一かつ適正なクリアランスの確保、ロウ材に最適な
ロウ付け温度の保持などが重要である。ロウ付け作業は
もちろん、これらの点を考慮してロウ付け技量の優れた
作業者により十分な注意を払いながら実施される。しか
しながら、ロウ付け面積を100%確保し、かつピンホ
ール等の内在欠陥を皆無にすることは、現在の技術レベ
ルではきわめて困難なことである。特に固定子巻線の素
線とクリップの接合部においては、単一部品どうしのロ
ウ付けとは異なり、多数の素線を積層してロウ付けする
ため、各ロウ付け部位のクリアランスを均一に保持する
ことは非常に困難である。したがって、わずかながらピ
ンホール等の内在も見られるのが現状である。このよう
に固定子巻線の素線とクリップのロウ付け作業はその特
殊な部品構成が故に非常に困難であり、より良いロウ付
け作業の改善が強く要望されているところである。
As is well known, in order to complete the brazing work, as a pretreatment, dirt such as oil and oxide scale adhering to the surface of the parts is removed, and uniform and proper clearance between the parts to be brazed. It is important to secure a proper brazing temperature and to maintain the optimum brazing temperature for the brazing material. In consideration of these points, the brazing work is performed by an operator having a good brazing skill while paying sufficient attention. However, it is extremely difficult at the current technical level to secure a brazing area of 100% and to eliminate internal defects such as pinholes. In particular, at the joint between the element wire of the stator winding and the clip, unlike the brazing of single parts, multiple element wires are laminated and brazed, so that the clearance at each brazing part is kept uniform. Very difficult to do. Therefore, the present situation is that pinholes and the like are also present, though they are a little. As described above, the brazing work of the wires of the stator winding and the clip is very difficult because of its special component structure, and a better brazing work improvement is strongly desired.

【0004】また、図6に示すように電解質(冷却水)
中に二つの異種金属(銅材Cuからなる素線4と、りん
銅ロウBCuPからなるろう材12)が存在するという
使用状況の下では、ガルバニックコロージョン(異種金
属接触腐食)という現象を生ずる虞がある。特に冷却水
(純水)が素線4の端部の素線間に内在する微小な開口
隙間から侵入し、内部の微小なピンホール等に侵入して
滞留すると、滞留している冷却水の電導度の悪化やロウ
材12からのリンイオンの溶出による水質の酸化により
腐食がさらに進行し、また素線12からの銅イオンの溶
出による微小ボイド内の腐食が進行・拡大し、この微小
ボイドが他の微小ボイドと次々と連通すると、遂にはロ
ウ付け部全長にわたり冷却水のリークパスが形成されて
冷却水が素線12の外部に漏洩し、その漏洩水が固定子
巻線の絶縁層にまで浸透しかねない。この絶縁層への水
の浸透により固定子巻線の絶縁不良を来し、接地事故と
いう事態に至る虞がある。
Further, as shown in FIG. 6, electrolyte (cooling water)
Under the use condition in which two different metals (the wire 4 made of the copper material Cu and the brazing material 12 made of the phosphor copper brazing BCuP) are present therein, a phenomenon called galvanic corrosion may occur. There is. In particular, when the cooling water (pure water) enters through the minute opening gaps existing between the wires at the ends of the wires 4 and enters the minute pinholes and the like inside and stays there, the staying cooling water Corrosion further progresses due to deterioration of electrical conductivity and oxidation of water quality due to elution of phosphorus ions from the brazing material 12, and corrosion inside microvoids due to elution of copper ions from the wire 12 progresses and expands. When communicating with other minute voids one after another, a cooling water leak path is finally formed over the entire length of the brazing part, and the cooling water leaks to the outside of the wire 12, and the leaked water even reaches the insulating layer of the stator winding. It may penetrate. The penetration of water into the insulating layer may cause insulation failure of the stator winding, which may lead to a grounding accident.

【0005】[0005]

【発明が解決しようとする課題】以上説明したように固
定子巻線の素線とその端部に設けるクリップとのロウ付
け作業においては、部品構成の複雑さからロウ付け作業
の重要な管理項目のひとつである部材間のクリアランス
の均一な保持が非常に困難で、ロウ材の流れ込みや回り
込みも不均一になりがちであり、時としてピンホール等
の内在欠陥を生じたり、ガス抜き不十分によるブローホ
ールを生じたりする。しかし、現在の技術水準では、こ
れらの内在欠陥を皆無にすることはきわめて困難である
ことも周知の事実である。
As described above, in the brazing work of the element wire of the stator winding and the clip provided at the end thereof, an important management item of the brazing work due to the complexity of the component structure. It is very difficult to maintain a uniform clearance between the members, which is one of the problems, and the inflow and wraparound of the brazing material tends to be uneven, sometimes causing internal defects such as pinholes or insufficient degassing. It causes blowholes. However, it is a well-known fact that it is extremely difficult to eliminate these inherent defects at the current state of the art.

【0006】このようなピンホール等の内在欠陥部に、
冷却水が素線端部の素線間に内在する微小な開口隙間か
ら侵入し滞留すると、冷却水である純水の変質(電導度
の悪化や酸性化)が進行し、ガルバニックコロージョン
が加速され、ロウ材よりも卑である銅材すなわち固定子
巻線の素線の腐食が予想よりも早く進行することにな
る。腐食が進行すると内在欠陥が拡大し、それらが相互
に連通してリークパスが形成され、素線とクリップの接
合部から冷却水が漏洩するという事態に至ることも十分
考えられる。
[0006] In such a defective portion such as a pinhole,
When the cooling water enters and stays from the minute opening gaps existing between the wires at the ends of the wires, the deterioration of pure water, which is the cooling water (deterioration of conductivity and acidification), progresses and galvanic corrosion is accelerated. However, the corrosion of the copper material, which is baser than the brazing material, that is, the wire of the stator winding progresses faster than expected. It is highly conceivable that as corrosion progresses, the internal defects will expand, they will communicate with each other to form a leak path, and cooling water will leak from the joint between the wire and the clip.

【0007】本発明は以上述べた事情を考慮してなされ
たものであって、水冷却形固定子巻線の素線とクリップ
のロウ付け部に生じうる内在欠陥部に冷却水が侵入する
という事態を防止し、固定子巻線としての絶縁の信頼性
を向上させて安定した運転を可能とする回転電機の固定
子巻線とその製作方法を提供することを目的とする。
The present invention has been made in consideration of the above-mentioned circumstances, and it is said that the cooling water penetrates into the internal defect portion which may occur in the brazing portion of the wire of the water cooling type stator winding and the brazing portion of the clip. It is an object of the present invention to provide a stator winding of a rotating electric machine and a manufacturing method thereof that prevent a situation and improve the reliability of insulation as a stator winding to enable stable operation.

【0008】[0008]

【課題を解決するための手段】上記目的を達成するため
に請求項1記載の発明は、固定子巻線を構成する複数の
素線を束状にしてその端部に、冷却水を供給し、かつ電
気的接続を行うためのクリップをロウ付けする型の、回
転電機の固定子巻線において、素線の端部間の隙間に樹
脂を充填したことを特徴とする。本発明は、固定子巻
線、特に固定子巻線の素線とクリップとを接合するロウ
付け作業時に、ロウ付け面積を100%確保し、ピンホ
ール等の内在欠陥を皆無にすることは現在の技術レベル
では極めて困難であることを踏まえたうえで、ロウ付け
作業完了後、冷却水と接する素線端部の素線間に内在す
る微小な開口隙間に即乾性の樹脂を充填することによ
り、内在欠陥部に冷却水が侵入するのを防止し、固定子
巻線としての信頼性を向上させるものである。
In order to achieve the above object, the invention according to claim 1 provides a plurality of strands constituting a stator winding into a bundle and supplies cooling water to the end portion thereof. In a stator winding of a rotary electric machine of a type in which a clip for electrical connection is brazed, a resin is filled in a gap between the ends of the wires. The present invention ensures 100% of the brazing area at the time of brazing work for joining the stator winding, particularly the element wire of the stator winding and the clip, and eliminates any internal defects such as pinholes. Based on the fact that it is extremely difficult at the technical level of the above, by filling the minute opening gaps existing inside the wire at the end of the wire in contact with the cooling water with the quick-drying resin after the brazing work is completed. The cooling water is prevented from entering the internal defective portion, and the reliability of the stator winding is improved.

【0009】請求項2の発明は、固定子巻線を構成する
複数の素線を束状にしてその端部に、冷却水を供給し、
かつ電気的接続を行うためのクリップをロウ付けする型
の、回転電機における固定子巻線の製作方法において、
素線の端部にクリップをロウ付けした後、素線の端部間
の隙間に即乾性樹脂を充填することを特徴とする。
According to a second aspect of the present invention, a plurality of element wires constituting the stator winding are bundled and cooling water is supplied to the ends thereof.
And a method of manufacturing a stator winding in a rotating electric machine of a type in which a clip for electrically connecting is brazed,
The invention is characterized in that after a clip is brazed to the ends of the wires, a gap between the ends of the wires is filled with a quick-drying resin.

【0010】請求項3の発明は、即乾性樹脂を充填する
ために、先端が極細の中空パイプと、この中空パイプに
連通する樹脂溜まり室、および、この樹脂溜まり室に嵌
合して樹脂を圧入する圧入筒を備えた樹脂充填装置を用
い、圧入筒を押し込んで樹脂溜まり室の液状の即乾性樹
脂を素線の端部間の隙間に充填することを特徴とする。
According to the third aspect of the present invention, in order to fill the quick-drying resin, the hollow pipe having an extremely fine tip, the resin reservoir chamber communicating with the hollow pipe, and the resin reservoir chamber fitted with the resin. A resin filling device provided with a press-fitting cylinder for press-fitting is used to push the press-fitting cylinder to fill the liquid quick-drying resin in the resin reservoir into the gap between the ends of the wire.

【0011】請求項4の発明は、中空パイプをクリップ
の先端面の冷却水出入り口を通して貫通導入することを
特徴とする。
The invention of claim 4 is characterized in that the hollow pipe is introduced through the cooling water inlet / outlet of the tip end surface of the clip.

【0012】請求項5の発明は、即乾性樹脂の充填作業
を、クリップ内で素線の端部をファイバースコープを用
いて拡大目視しながら行うことを特徴とする。
The invention of claim 5 is characterized in that the filling work of the quick-drying resin is carried out while magnifying and visually observing the end of the wire in the clip using a fiberscope.

【0013】請求項6の発明は、ファイバースコープを
クリップの先端面の冷却水出入り口を通して貫通導入す
ることを特徴とする。
The invention of claim 6 is characterized in that the fiberscope is introduced through the cooling water inlet / outlet of the tip end surface of the clip.

【0014】[0014]

【発明の実施の形態】以下、本発明の実施の形態を図1
および図2を参照して説明する。なお図3〜図5中に示
したものと同一の部品には同一符号を付けている。
FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. The same parts as those shown in FIGS. 3 to 5 are designated by the same reference numerals.

【0015】図1,図2に示すように、本発明によれ
ば、従来技術に従い一応製作を終えた固定子巻線3を対
象とし、樹脂充填装置17により固定子巻線3の素線4
の端部間に即乾性樹脂22を充填する。樹脂充填装置1
7は、極細の樹脂注入口14aを有する中空パイプ14
と、この中空パイプ14に連通する樹脂溜まり室15、
および、この樹脂溜まり室15に嵌合して樹脂を圧入す
る圧入筒16を備えた注射器型に構成されている。ま
た、樹脂注入作業を目視確認しながら行うためにファイ
バースコープ20を用意する。ファイバースコープ20
は、先端部に拡大レンズ18を装着するとともに光源1
9を備えている。
As shown in FIGS. 1 and 2, according to the present invention, the stator winding 3 which has been manufactured in accordance with the prior art is targeted, and a resin filling device 17 is used for the stator winding 3.
Immediately dry resin 22 is filled between the end portions of. Resin filling device 1
7 is a hollow pipe 14 having an ultrafine resin injection port 14a
And a resin reservoir chamber 15 communicating with the hollow pipe 14,
Further, it is configured as a syringe type including a press-fitting cylinder 16 that is fitted into the resin reservoir chamber 15 and press-fits the resin. Further, the fiberscope 20 is prepared in order to perform the resin injection work while visually confirming it. Fiberscope 20
Attaches the magnifying lens 18 to the tip of the light source 1 and
9 is provided.

【0016】さて樹脂注入作業に際して、樹脂溜まり室
15に液状の即乾性樹脂22を入れて、中空パイプ14
を冷却水出入り口13からクリップ5内に貫通導入し、
極細の樹脂注入口14aを固定子巻線3の素線端部21
に臨ませる。同様にファイバースコープ20も冷却水出
入り口13からクリップ5内に貫通導入して素線端部2
1に臨ませ、樹脂注入部すなわち固定子巻線3の素線4
の端部間の辺りを拡大目視して確認しながら作業を進め
る。この状態で圧入筒16を押し込むことにより樹脂注
入口14aから液状の即乾性樹脂22を図2に示すよう
に素線端部21のそれぞれの素線間隙間23に逐次、手
動で移動させながら注入する。これにより、素線間隙間
23が樹脂22により閉塞され、水の侵入が阻止され
る。
At the time of resin injection work, the liquid quick-drying resin 22 is put into the resin reservoir 15 and the hollow pipe 14 is inserted.
Through the cooling water inlet / outlet 13 into the clip 5,
The fine resin injection port 14a is connected to the wire end portion 21 of the stator winding 3.
Face. Similarly, the fiberscope 20 is also introduced from the cooling water inlet / outlet port 13 into the clip 5 so that the strand end 2
1, the resin injection portion, that is, the wire 4 of the stator winding 3
Enlarge the area between the edges of the and confirm with visual inspection. By pressing the press-fitting cylinder 16 in this state, the liquid quick-drying resin 22 is injected from the resin injection port 14a into the inter-strand gaps 23 of the strand ends 21 as shown in FIG. To do. As a result, the inter-strand gap 23 is closed by the resin 22, and water is prevented from entering.

【0017】[0017]

【発明の効果】以上述べた本発明によれば、巻線の素線
とクリップとを接合するロウ付け部にたとえ内在欠陥が
あっても、冷却水と接する素線端面が樹脂により確実に
コーティングされ、かつ、開口された微小隙間が樹脂で
充填されるため冷却水が微小隙間内に侵入して滞留する
ことに起因し、純水の変質(電導度の悪化、酸性化等)
が進行して生じるガルバニックコロージョンによる銅材
からなる素線腐食の進行を抑制し、ロウ付け部位の腐食
による冷却水の漏洩現象を防止し、信頼性の高い回転電
機の固定子巻線を提供することができる。
According to the present invention described above, even if there is an internal defect in the brazing portion that joins the wire of the winding wire and the clip, the end face of the wire that contacts the cooling water is surely coated with the resin. And because the opened minute gaps are filled with resin, the cooling water enters and stays in the minute gaps, resulting in alteration of pure water (deterioration of conductivity, acidification, etc.).
It suppresses the progress of corrosion of the wire made of copper material due to galvanic corrosion that occurs due to the progress of corrosion, prevents the leakage of cooling water due to the corrosion of the brazing part, and provides a highly reliable stator winding for a rotating electric machine. be able to.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の方法による固定子巻線の製作工程を説
明するために示すクリップ部分の断面図。
FIG. 1 is a sectional view of a clip portion shown for explaining a manufacturing process of a stator winding according to the method of the present invention.

【図2】本発明におけるクリップと素線間端面における
微小隙間開口部の樹脂充填によるシール状況を説明する
ための説明図。
FIG. 2 is an explanatory diagram for explaining a sealing condition by resin filling of a minute gap opening portion on an end face between a clip and a strand in the present invention.

【図3】従来技術による固定子巻線水冷却形回転電機の
固定子の要部を示す図。
FIG. 3 is a diagram showing a main part of a stator of a stator winding water-cooled rotary electric machine according to a conventional technique.

【図4】図3の固定子巻線の端部構造を示す斜視図。FIG. 4 is a perspective view showing an end structure of the stator winding of FIG.

【図5】素線とクリップの組立て構成図。FIG. 5 is an assembly configuration diagram of a wire and a clip.

【図6】従来のロウ付け方法による素線間に内在する微
小隙間とガルバニックコロージョンを示す模式図。
FIG. 6 is a schematic view showing a minute gap and galvanic corrosion existing between the wires by a conventional brazing method.

【符号の説明】[Explanation of symbols]

1 固定子枠 2 固定子鉄心 3 固定子巻線 4 素線 5 クリップ 6 接続管 7 絶縁接続管 8 へッダーパイプ 9 接続片 10 開口部 12 ロウ材 13 冷却水出入り口 14 中空パイプ 15 樹脂溜まり室 16 圧入筒 17 樹脂充填装置 18 拡大レンズ 19 光源 20 ファイバースコープ 21 固定子巻線素線端部 22 即乾性樹脂 23 素線間隙間 1 Stator Frame 2 Stator Iron Core 3 Stator Winding 4 Elementary Wire 5 Clip 6 Connection Tube 7 Insulation Connection Tube 8 Header Pipe 9 Connection Piece 10 Opening 12 Brazing Material 13 Cooling Water Inlet / Outlet 14 Hollow Pipe 15 Resin Reservoir 16 16 Press Fit Cylinder 17 Resin filling device 18 Magnifying lens 19 Light source 20 Fiberscope 21 End of stator winding wire 22 Immediately dry resin 23 Gap between wires

【手続補正書】[Procedure amendment]

【提出日】平成8年1月9日[Submission date] January 9, 1996

【手続補正1】[Procedure amendment 1]

【補正対象書類名】図面[Document name to be amended] Drawing

【補正対象項目名】全図[Correction target item name] All figures

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【図1】 FIG.

【図2】 [Fig. 2]

【図3】 [Figure 3]

【図4】 FIG. 4

【図5】 [Figure 5]

【図6】 FIG. 6

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】固定子巻線を構成する複数の素線を束状に
してその端部に、冷却水を供給し、かつ電気的接続を行
うためのクリップをロウ付けする型の、回転電機の固定
子巻線において、前記素線の端部間の隙間に樹脂を充填
したことを特徴とする回転電機の固定子巻線。
1. A rotating electric machine of a type in which a plurality of strands constituting a stator winding are bundled and a clip for supplying cooling water and electrically connecting to the end of the bundle is brazed. The stator winding of the rotating electric machine according to claim 1, wherein resin is filled in a gap between the ends of the strands.
【請求項2】固定子巻線を構成する複数の素線を束状に
してその端部に、冷却水を供給し、かつ電気的接続を行
うためのクリップをロウ付けする型の、回転電機におけ
る固定子巻線の製作方法において、前記素線の端部にク
リップをロウ付けした後、前記素線の端部間の隙間に即
乾性樹脂を充填することを特徴とする回転電機における
固定子巻線の製作方法。
2. A rotating electric machine of a type in which a plurality of element wires constituting a stator winding are formed into a bundle and a clip for supplying cooling water and electrically connecting to the end of the bundle is brazed. In the method for manufacturing a stator winding in the above, a clip is brazed to the ends of the strands, and then a gap between the ends of the strands is filled with a quick-drying resin. How to make a winding.
【請求項3】前記即乾性樹脂を充填するために、先端が
極細の中空パイプと、この中空パイプに連通する樹脂溜
まり室、および、この樹脂溜まり室に嵌合して樹脂を圧
入する圧入筒を備えた樹脂充填装置を用い、前記圧入筒
を押し込んで樹脂溜まり室の液状の即乾性樹脂を前記素
線の端部間に充填することを特徴とする請求項2に記載
の固定子巻線の製作方法。
3. A hollow pipe having an extremely fine tip, a resin reservoir chamber communicating with the hollow pipe, and a press-fitting cylinder for press-fitting the resin by fitting into the resin reservoir chamber to fill the immediate-drying resin. The stator winding according to claim 2, wherein the resin-filling device including the above is used to push the press-fitting cylinder to fill the liquid quick-drying resin in the resin reservoir between the ends of the wire. How to make.
【請求項4】前記中空パイプを前記クリップの先端面の
冷却水出入り口を通して貫通導入することを特徴とする
請求項3に記載の固定子巻線の製作方法。
4. The method of manufacturing a stator winding according to claim 3, wherein the hollow pipe is introduced through a cooling water inlet / outlet of a tip end surface of the clip.
【請求項5】前記即乾性樹脂の充填作業を、前記クリッ
プ内で前記素線の端部をファイバースコープを用いて拡
大目視しながら行うことを特徴とする請求項3または請
求項4に記載の固定子巻線の製作方法。
5. The filling operation of the quick-drying resin is performed while magnifying and visually observing the end portion of the wire in the clip using a fiberscope. Manufacturing method of stator winding.
【請求項6】前記ファイバースコープを前記クリップの
先端面の冷却水出入り口を通して貫通導入することを特
徴とする請求項5に記載の固定子巻線の製作方法。
6. The method of manufacturing a stator winding according to claim 5, wherein the fiberscope is introduced through a cooling water inlet / outlet of a tip end surface of the clip.
JP32073495A 1995-12-08 1995-12-08 Stator winding of rotating electric machine, and its manufacture Pending JPH09163655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32073495A JPH09163655A (en) 1995-12-08 1995-12-08 Stator winding of rotating electric machine, and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32073495A JPH09163655A (en) 1995-12-08 1995-12-08 Stator winding of rotating electric machine, and its manufacture

Publications (1)

Publication Number Publication Date
JPH09163655A true JPH09163655A (en) 1997-06-20

Family

ID=18124716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32073495A Pending JPH09163655A (en) 1995-12-08 1995-12-08 Stator winding of rotating electric machine, and its manufacture

Country Status (1)

Country Link
JP (1) JPH09163655A (en)

Similar Documents

Publication Publication Date Title
US5875539A (en) Water-cooled stator coil end sealing process
US5581869A (en) Repair method for sealing liquid-cooled stator bar end fittings for a generator
US5796189A (en) Brazing procedure for generator liquid cooled stator bars
CZ317195A3 (en) Method of repairing connection mechanism of electric machines for current connection line and for supply, optionally discharge of cooling liquid
CA2183957C (en) Two piece electrical and fluidic connector and installation method therefore
US10903614B2 (en) Method and device for sealing contact points at electrical line connections
US5064978A (en) Assembly with self-regulating temperature heater perform for terminating conductors and insulating the termination
US6784573B1 (en) Corrosion-resistant liquid-cooled armature bar clip-to-strand connection and related method
US5809632A (en) Method for repairing a cooling fluid box of an electric alternator stator bar
US5760371A (en) Water-cooled stator coil header repair process
CN102611233A (en) Method and system for joining stator wires
US20040189109A1 (en) Apparatus and method for consolidating conductive strands of a stator coil
FI72230C (en) FOERFARANDE FOER FRAMSTAELLNING AV ELEKTRISKA KABLAR.
JPH09163655A (en) Stator winding of rotating electric machine, and its manufacture
JPH11289724A (en) Stator of rotary electric machine and its manufacture
JPH0723540A (en) Stator winding for electric rotating machine
US4082406A (en) Method and apparatus for connecting leads of a rotor
US20230198351A1 (en) Method for reworking a faulty welded joint of a hairpin winding
JP2660680B2 (en) Conductor lapping connection method and wrapping tool
MXPA96005586A (en) Electrical connector and by fluids of two pieces and my installation method
JP3630517B2 (en) Method for manufacturing stator coil of rotating electric machine
JPH09233774A (en) Manufacturing method of stator winding for dynamo-electric machine
JP2017079164A (en) Method of manufacturing electric wire with heat-shrinkable tube, and electric wire with heat-shrinkable tube
KR100193953B1 (en) Joining method of connecting terminal piece of deflection coil and joining structure of connecting terminal piece
JPH07308038A (en) Water-cooled stator coil end structure for electric rotating machine