JPH0683553B2 - Rotor winding of rotating electric machine - Google Patents
Rotor winding of rotating electric machineInfo
- Publication number
- JPH0683553B2 JPH0683553B2 JP14147789A JP14147789A JPH0683553B2 JP H0683553 B2 JPH0683553 B2 JP H0683553B2 JP 14147789 A JP14147789 A JP 14147789A JP 14147789 A JP14147789 A JP 14147789A JP H0683553 B2 JPH0683553 B2 JP H0683553B2
- Authority
- JP
- Japan
- Prior art keywords
- lead wire
- power supply
- supply lead
- rotor winding
- electric machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Windings For Motors And Generators (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は回転電機の回転子巻線に関するものである。TECHNICAL FIELD The present invention relates to a rotor winding of a rotary electric machine.
従来の給電用リード線は実開昭53-96604号公報に記載さ
れているように構成されており、冷却性能の観点からそ
の構造が選定されていた。しかし、給電用リード線立上
り部に作用する遠心力に対しては、特に構造上の工夫は
なされていなかつた。The conventional power supply lead wire is configured as described in Japanese Utility Model Publication No. 53-96604, and its structure is selected from the viewpoint of cooling performance. However, no particular structural ingenuity has been made for the centrifugal force acting on the rising portion of the power supply lead wire.
例えばリード線に積層薄板を使用し、その可撓性により
遠心力による変形に対する可撓性を持たせていた。積層
薄板を使用しない場合には、厚板を曲げて給電用リード
線として用いているが、この場合には曲げ加工性保持の
ため、冷間加工度10％程度の硬度の低い材料を用いてい
る。For example, a laminated thin plate is used for the lead wire, and its flexibility gives flexibility to deformation due to centrifugal force. When the laminated thin plate is not used, the thick plate is bent and used as a power supply lead wire. In this case, a material with a low hardness of about 10% cold working is used to maintain bendability. There is.
すなわち回転電機の回転子巻線の端部は第４図に示され
ているように、コイル1,回転子巻線端部支持部材2,シヤ
フト3,給電用リード線４等で構成されており、回転子巻
線のコイル１への給電は、給電用リード線４によつて行
われている。この給電用リード線４は同図に示されてい
るように、コイル１に接続部材（図示せず）を介して接
続された立上り直線部4aおよび曲り部4bを有している。
なお同図において５は給電用リード線４を支持する支持
部材である。That is, as shown in FIG. 4, the end of the rotor winding of the rotating electric machine is composed of a coil 1, a rotor winding end supporting member 2, a shaft 3, a power supply lead wire 4 and the like. Power supply to the coil 1 of the rotor winding is performed by the power supply lead wire 4. As shown in the figure, the power supply lead wire 4 has a rising straight portion 4a and a bent portion 4b which are connected to the coil 1 via a connecting member (not shown).
In the figure, 5 is a support member for supporting the power supply lead wire 4.
この立上り直線部および曲り部を有する給電用リード線
は遠心力を受けると、第５図（ａ）に示されているよう
に、矢印表示の圧縮力Ｐを受ける。このような圧縮力Ｐ
を受けると、給電用リード線４は縦軸に同図（ａ）と対
比させたコイル接続部端からの距離ｘをとり、横軸に圧
縮力Ｐをとつて、コイル接続部端からの距離ｘと圧縮力
Ｐとの関係が示されている同図（ｂ）に示されているよ
うに、立上り直線部側が大きく、曲り部側が小さい圧縮
力分布に曝されるようになる。そして給電用リード線と
して使用されている硬銅はその弾性限界を越えた圧縮力
を受けると、弾性限界を越えた部分では圧縮塑性変形が
おこる。When the feeding lead wire having the rising straight portion and the bent portion is subjected to centrifugal force, it receives a compressive force P indicated by an arrow as shown in FIG. 5 (a). Such compressive force P
In response, the power supply lead wire 4 has a vertical axis that represents the distance x from the end of the coil connection portion, which is compared with FIG. As shown in (b) of the figure in which the relationship between x and the compressive force P is shown, the rising linear portion side is exposed to a large compressive force distribution and the curved portion side is exposed to a small compressive force distribution. When the hard copper used as a power supply lead wire receives a compressive force exceeding its elastic limit, compressive plastic deformation occurs in the portion exceeding the elastic limit.
ところで給電用リード線は従来、第６図に示されている
ように板状の給電用リード線４を曲げ加工し、曲げ加工
後、回転子巻線のコイル端部と接続される接続部材4cを
ロー付して製作されていたので、給電用リード線４はロ
ー付で軟化し、必要な弾性域を確保するのが困難であつ
た。By the way, the power supply lead wire is conventionally formed by bending a plate-shaped power supply lead wire 4 as shown in FIG. 6, and after the bending work, the connecting member 4c is connected to the coil end of the rotor winding. Since it was manufactured by brazing, the power supply lead wire 4 was softened by brazing, and it was difficult to secure a necessary elastic region.
このように従来技術では遠心力の大きな回転電機の回転
子に使用される場合の遠心力耐力について配慮がされて
おらず、過大遠心力による給電用リード線の異常変形や
圧縮力による圧縮塑性変形等の問題があつた。As described above, the prior art does not consider centrifugal proof strength when it is used for a rotor of a rotating electric machine having a large centrifugal force, and abnormal deformation of the power supply lead wire due to excessive centrifugal force or compressive plastic deformation due to compressive force. There was a problem such as.
本発明は以上の点に鑑みなされたものであり、給電用リ
ード線の遠心力耐力の向上を可能とした回転電機の回転
子巻線を提供することを目的とするものである。The present invention has been made in view of the above points, and an object of the present invention is to provide a rotor winding of a rotary electric machine capable of improving the centrifugal resistance of a power supply lead wire.
上記目的は、給電用リード線を、立上り直線部の硬度を
曲り部のそれより大きくすることにより、達成される。The above-mentioned object is achieved by making the power supply lead wire have a hardness of the rising straight portion larger than that of the bent portion.
上記手段を設けたので曲り部は可撓性を維持し立上り直
線部ではその弾性限界が向上するようになつて、立上り
直線部の圧縮塑性変形耐力が向上するようになる。Since the above-mentioned means is provided, the bending portion maintains flexibility and the elastic limit of the rising straight portion is improved, so that the compressive plastic deformation proof strength of the rising straight portion is improved.
以下、図示した実施例に基づいて本発明を説明する。第
１図および第２図には本発明の一実施例が示されてい
る。なお従来と同じ部品には同じ符号を付したので説明
を省略する。本実施例では給電用リード線４を、立上り
直線部4aの硬度を曲り部4bのそれより大きく、曲り部4b
の硬度を立上り直線部4aのそれより小さくした。このよ
うにすることにより曲り部4bは可撓性を維持し立上り直
線部4aではその弾性限界が向上するようになつて、立上
り直線部4aの圧縮塑性変形耐力が向上するようになり、
給電用リード線４の遠心力耐力の向上を可能とした回転
電機の回転子巻線を得ることができる。Hereinafter, the present invention will be described based on the illustrated embodiments. An embodiment of the present invention is shown in FIGS. Since the same parts as those of the prior art are designated by the same reference numerals, the description thereof will be omitted. In this embodiment, the power feeding lead wire 4 has a hardness of the rising straight line portion 4a larger than that of the bending portion 4b, and the bending portion 4b.
The hardness of is smaller than that of the rising straight portion 4a. By doing so, the bending portion 4b maintains flexibility and the elastic limit of the rising linear portion 4a is improved, so that the compressive plastic deformation proof stress of the rising linear portion 4a is improved.
It is possible to obtain the rotor winding of the rotary electric machine that can improve the centrifugal resistance of the power supply lead wire 4.
すなわち第１図（ａ）に示されている給電用リード線４
の立上り直線部4aのコイル接続部端からの寸法l4の部分
を、冷間加工度とコイル接続部端からの距離ｘとの関係
が示されている同図（ｂ）のように冷間加工度10〜40
％，曲り部4bを含むその他の部分の冷間加工度を10％に
した。That is, the power supply lead wire 4 shown in FIG.
Cold of the part of dimensions l 4 from the coil connection portion end of the rising linear portion 4a, as shown in the graph the relationship between the distance x from the cold working ratio and the coil connection portion end is shown (b) Processing degree 10-40
%, And the cold workability of other parts including the bent portion 4b was set to 10%.
このような給電用リード線４はその一実施例が示されて
いる第２図に示されているようにして製作した。冷間加
工度10％（５〜15％）の硬銅を使用する。この冷間加工
度10％の硬銅の給電用リード線４の立上り直線部を治具
６を用いてプレス加工し、冷間加工度10〜40％に追加冷
間加工する。次いで機械加工，曲げ加工した後、接続部
材4cを立上り直線部の端部に電子ビーム溶接する。この
ように電子ビーム溶接したので短時間で溶接されるよう
になつて、立上り直線部に対する熱影響を少なくするこ
とができるようになり、冷間加工度を上げた立上り直線
部の冷間加工度を下げることがない。このように熱軟化
域の狭い電子ビーム溶接を用いて接続部材4cを接合する
ことで、立上り直線部の硬度を高くし、必要な弾性限界
を確保するようにしたのである。Such a power supply lead wire 4 was manufactured as shown in FIG. 2 showing an embodiment thereof. Use hard copper with a cold workability of 10% (5 to 15%). The rising straight line portion of the lead wire 4 for feeding the hard copper having the cold workability of 10% is press-processed by using the jig 6, and the additional cold work is performed at the cold workability of 10 to 40%. Next, after machining and bending, the connecting member 4c is electron beam welded to the end of the rising straight portion. Since electron beam welding is used in this way, welding can be performed in a short time, and it becomes possible to reduce the thermal effect on the rising straight line portion. Never lower. By joining the connecting members 4c by using electron beam welding having a narrow thermal softening region in this manner, the hardness of the rising straight line portion is increased and the required elastic limit is secured.
このように本実施例によれば給電用リード線の立上り直
線部の硬度が大きく、遠心力耐力が向上するので、特に
径が大きく、回転数の大きい大容量タービン発電機に適
用すると、遠心力耐力が向上する。As described above, according to the present embodiment, the hardness of the rising straight line portion of the power supply lead wire is large and the centrifugal proof strength is improved. Therefore, when it is applied to a large-capacity turbine generator having a large diameter and a large rotation speed, The yield strength is improved.
第３図には本発明の他の実施例が示されている。本実施
例は冷間加工度10％の硬銅の給電用リード線４の立上り
直線部に接続部材4cをまずロー付，溶接等で接合する。
次いでロー付，溶接等で熱影響を受けた熱影響部の立上
り直線部をプレス等で冷間加工し、立上り直線部の必要
な弾性限界を確保するようにしたものである。このよう
にして立上り直線部の必要な弾性限界を確保したものを
機械加工，曲げ加工して給電用リード線を完成させる。
この場合も前述の場合と同様な作用効果を奏することが
できる。FIG. 3 shows another embodiment of the present invention. In this embodiment, the connecting member 4c is first joined to the rising straight portion of the power supply lead wire 4 made of hard copper having a cold workability of 10% by brazing or welding.
Next, the rising straight line portion of the heat affected zone which is heat affected by brazing, welding, etc. is cold worked by a press or the like to secure the necessary elastic limit of the rising straight line portion. In this way, the one that secures the necessary elastic limit of the rising straight part is machined and bent to complete the power supply lead wire.
In this case as well, it is possible to obtain the same effects as the above case.
上述のように本発明は給電用リード線の遠心力耐力が向
上するようになつて、給電用リード線の遠心力耐力の向
上を可能とした回転電機の回転子巻線を得ることができ
る。As described above, according to the present invention, the centrifugal force proof of the power supply lead wire is improved, and the rotor winding of the rotary electric machine capable of improving the centrifugal force proof of the power supply lead wire can be obtained.
第１図（ａ），（ｂ）は本発明の回転電機の回転子巻線
の一実施例の給電用リード線を示すもので（ａ）は側面
図、（ｂ）は給電用リード線のコイル接続部端からの距
離と冷間加工度との関係を示す特性図、第２図は同じく
一実施例の給電用リード線の製作手順を示す斜視図、第
３図は本発明の回転電機の回転子巻線の他の実施例の給
電用リード線の製作手順を示す斜視図、第４図は回転電
機の回転子巻線の巻線端部の縦断側面図、第５図
（ａ），（ｂ）は回転電機の回転子巻線の給電用リード
線を示すもので（ａ）は立上り直線部に遠心力による圧
縮力がかかる状態を示す側面図、（ｂ）はコイル接続部
端からの距離と圧縮力との関係を示す特性図、第６図は
従来の回転電機の回転子巻線の給電用リード線の製作手
順を示す斜視図である。 ４……給電用リード線、4a……立上り直線部、4b……曲
り部、4c……接続部材。1 (a) and 1 (b) show a power supply lead wire of an embodiment of a rotor winding of a rotating electric machine according to the present invention. (A) is a side view and (b) is a power supply lead wire. FIG. 2 is a characteristic view showing the relationship between the distance from the end of the coil connecting portion and the cold workability, FIG. 2 is a perspective view showing the procedure for producing the power supply lead wire of the same embodiment, and FIG. FIG. 5 is a perspective view showing a procedure for manufacturing a power supply lead wire of another embodiment of the rotor winding of FIG. 4, FIG. 4 is a vertical sectional side view of a winding end portion of a rotor winding of a rotating electric machine, and FIG. , (B) shows a power supply lead wire of a rotor winding of a rotating electric machine, (a) is a side view showing a state in which a compressive force due to centrifugal force is applied to a rising straight line portion, (b) is a coil connection end FIG. 6 is a characteristic diagram showing the relationship between the distance from and the compressive force, and FIG. 6 is a perspective view showing the procedure for producing the power supply lead wire of the rotor winding of the conventional rotary electric machine. 4 ... Lead wire for power supply, 4a ... Straight part of rising line, 4b ... Bent part, 4c ... Connection member.
Claims (5)
有する給電用リード線で接続部材を介して接続される回
転電機の回転子巻線において、前記給電用リード線が、
前記立上り直線部の硬度が前記曲り部のそれより大きく
なっていることを特徴とする回転電機の回転子巻線。1. A rotor winding of a rotary electric machine, which is plate-shaped and is connected via a connecting member with a power supply lead wire having a rising straight portion and a bent portion, wherein the power supply lead wire is
The rotor winding of a rotary electric machine, wherein the hardness of the rising straight portion is larger than that of the bent portion.
直線部の冷間加工度が約10〜40％，曲り部のそれが約５
〜15％である特許請求の範囲第１項記載の回転電機の回
転子巻線。2. The power supply lead wire has a cold workability of about 10 to 40% at the rising straight portion of hard copper and about 5 at the bending portion.
The rotor winding of the rotating electric machine according to claim 1, wherein the rotor winding is -15%.
銅が使用され、立上り直線部がさらに所定の冷間加工度
に冷間加工後、所定形状に形成されるものである特許請
求の範囲第１項または第２項記載の回転電機の回転子巻
線。3. The power supply lead wire is made of cold-worked hard copper, and the rising straight line portion is formed into a predetermined shape after cold-working to a predetermined cold-working degree. A rotor winding for a rotating electric machine according to claim 1 or 2.
れた後、接続部材と電子ビーム溶接されるものである特
許請求の範囲第１項ないし第３項のいずれか１項に記載
の回転電機の回転子巻線。4. The electric power supply lead wire according to claim 1, wherein the electric power supply lead wire is formed into a predetermined shape and then electron beam welded to the connecting member. Rotor winding of rotating electric machine.
いて接続部材と溶接された後、前記立上り直線部が所定
の冷間加工度に冷間加工されるものである特許請求の範
囲第１項ないし第３項のいずれか１項に記載の回転電機
の回転子巻線。5. The method according to claim 1, wherein the power supply lead wire is welded to the connecting member at the rising straight line portion, and then the rising straight line portion is cold worked to a predetermined cold working degree. The rotor winding of the rotating electric machine according to any one of items 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14147789A JPH0683553B2 (en) | 1989-06-03 | 1989-06-03 | Rotor winding of rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14147789A JPH0683553B2 (en) | 1989-06-03 | 1989-06-03 | Rotor winding of rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH037036A JPH037036A (en) | 1991-01-14 |
| JPH0683553B2 true JPH0683553B2 (en) | 1994-10-19 |
Family
ID=15292801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14147789A Expired - Fee Related JPH0683553B2 (en) | 1989-06-03 | 1989-06-03 | Rotor winding of rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0683553B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9801695B1 (en) * | 1997-05-26 | 2009-08-11 | rotary electric machine. | |
| DE69810008T2 (en) * | 1997-05-26 | 2003-09-25 | Denso Corp., Kariya | Electric lathe |
| JP3551897B2 (en) | 2000-06-09 | 2004-08-11 | 株式会社日立製作所 | Rotating electric machine and power supply lead wire connection method |
-
1989
- 1989-06-03 JP JP14147789A patent/JPH0683553B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH037036A (en) | 1991-01-14 |
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