JPS6364142B2 - - Google Patents
Info
- Publication number
- JPS6364142B2 JPS6364142B2 JP15009679A JP15009679A JPS6364142B2 JP S6364142 B2 JPS6364142 B2 JP S6364142B2 JP 15009679 A JP15009679 A JP 15009679A JP 15009679 A JP15009679 A JP 15009679A JP S6364142 B2 JPS6364142 B2 JP S6364142B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- rotor
- spindle
- axial
- bending deformation
- 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
Links
- 238000004804 winding Methods 0.000 claims description 36
- 238000005452 bending Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 5
- 238000005219 brazing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
【発明の詳細な説明】
本発明は回転電機（発電機および電動機）の回
転子巻線の改良に関し、回転子巻線に加わる曲げ
応力を軽減させ耐久性および信頼性の向上を図つ
た回転子を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in rotor windings of rotating electric machines (generators and motors), and relates to improvements in rotor windings of rotating electrical machines (generators and motors), and a rotor that reduces bending stress applied to the rotor windings and improves durability and reliability. It provides:
第１図および第２図は回転電機の回転子および
回転子巻線の一般的構造を示す図である。 1 and 2 are diagrams showing the general structure of a rotor and rotor winding of a rotating electric machine.
第１図および第２図において、回転子１２は胴
部１４および両端に形成されたスピンドル部１６
を有し、該胴部の外周部には複数本の軸方向スロ
ツト１８が形成されている。各スロツトは直径方
向のＮ−Ｓ磁極線に対し略対称の関係に配列され
ている。各スロツト内には、図示の如き矩形断面
の回転子巻線２０が層をなして巻回され、各層間
は絶縁されている。また、回転子巻線２０の各層
は、胴部１４の両端から突出したスピンドル１６
部で、極亘り部２２によつて相互に接続されてい
る。 In FIGS. 1 and 2, the rotor 12 includes a body portion 14 and spindle portions 16 formed at both ends.
A plurality of axial slots 18 are formed in the outer periphery of the body. Each slot is arranged in substantially symmetrical relation to the diametrical N-S pole line. In each slot, a rotor winding 20 having a rectangular cross section as shown is wound in layers, and the layers are insulated. Further, each layer of the rotor winding 20 is connected to a spindle 16 protruding from both ends of the body 14.
The sections are interconnected by a polar crossing section 22.
回転子巻線２０は、胴部１４のスロツト１８内
ではウエツジ２４で、スピンドル部１６では保持
環２６で、遠心力による飛び出しを防止されてい
る。図示の例では、各スロツト１８内の巻線の外
部に絶縁層２８を配置し、軸方向に緊締挿入され
たウエツジ２４によつて巻線が固定されている。
また、スピンドル部１６では、極亘り部２２の外
側に環状の絶縁層３０を配置し、回転子に焼嵌め
等により固定された保持環２６により巻線が固定
されている。 The rotor winding 20 is prevented from flying out due to centrifugal force by a wedge 24 in the slot 18 of the body 14 and by a retaining ring 26 in the spindle 16. In the example shown, an insulating layer 28 is placed on the outside of the windings in each slot 18, and the windings are secured by wedges 24 which are axially tightened.
Further, in the spindle section 16, an annular insulating layer 30 is disposed outside the pole spanning section 22, and the windings are fixed by a retaining ring 26 fixed to the rotor by shrink fitting or the like.
しかして、回転子が回転すると、第３図および
第４図に示すように、遠心力により保持環２６が
膨張変形するとともに、スピンドル部１６は剛性
が急激に減少する胴部１４に隣接した部分で回転
曲げ変形を受ける。 When the rotor rotates, as shown in FIGS. 3 and 4, the retaining ring 26 expands and deforms due to centrifugal force, and the spindle portion 16 is exposed to the portion adjacent to the body portion 14 where the rigidity rapidly decreases. undergoes rotational bending deformation.
このため、保持環２６の内面に遠心力で押しつ
けられていた最外ターン巻線は、保持環の膨張
（第３図参照）により強制的に変形され、胴部出
口で大きな曲げ応力を受ける。一方、スピンドル
部１６も、第４図に示す如く、胴部１４の重量に
より同様の曲げ変形を受けて回転曲げの変形の状
態となり、これによつて巻線の胴部出口部で同様
の強制曲げ変形を受け、巻線に大きな繰返し曲げ
応力が生ずる。 Therefore, the outermost turn winding, which has been pressed against the inner surface of the retaining ring 26 by centrifugal force, is forcibly deformed by the expansion of the retaining ring (see FIG. 3), and is subjected to a large bending stress at the outlet of the body. On the other hand, as shown in FIG. 4, the spindle section 16 is also subjected to a similar bending deformation due to the weight of the body section 14, resulting in a state of rotary bending deformation. The winding undergoes bending deformation, resulting in large repeated bending stress.
これら二種類の曲げ応力が重畳するため、回転
子巻線２０の胴部１４から出口部分の応力が著し
く高くなり、場合によつては破断する可能性があ
り、耐久性および信頼性の点で欠点があつた。 Because these two types of bending stress are superimposed, the stress at the exit portion from the body 14 of the rotor winding 20 becomes significantly high, and in some cases, there is a possibility of breakage, which may cause problems in terms of durability and reliability. There were flaws.
本発明は、このような従来の欠点を解消するた
めになされたものであり、前述の曲げ応力が強制
的な曲げ変形に因ることに着目して、この曲げ応
力の抵減を曲げ変形に対するフレキシビリテイの
増大化によつて達成するものである。すなわち、
本発明は、巻線２０の胴部部１４からスピンドル
部１６へ出る部分を軸方向分割線または軸方向ス
リツトにより巾方向に分割することにより、巻線
の曲げ変形に対するフレキシビリテイを増大化さ
せ、もつて曲げ応力を低減させることを特徴とす
るものである。 The present invention was made to eliminate such conventional drawbacks, and focusing on the fact that the above-mentioned bending stress is caused by forced bending deformation, the present invention aims to reduce the resistance of this bending stress to bending deformation. This is achieved by increasing flexibility. That is,
The present invention increases the flexibility of the winding wire against bending deformation by dividing the portion of the winding wire 20 extending from the body portion 14 to the spindle portion 16 in the width direction with an axial dividing line or an axial slit. , which is characterized by reducing bending stress.
以下、第５図および第６図参照して本発明の実
施例を説明する。 Embodiments of the present invention will be described below with reference to FIGS. 5 and 6.
第５図は本発明による回転子巻線の一実施例の
要部を示す図であり、第１図および第２図の各部
分に対応する部分はそれぞれ同一符号で表示され
ている。 FIG. 5 is a diagram showing essential parts of an embodiment of the rotor winding according to the present invention, and parts corresponding to those in FIGS. 1 and 2 are designated by the same reference numerals.
第５図において、胴部１４に形成された各スロ
ツト１８内に収納された巻線２０には、該胴部か
ら出る手前から極亘り部２２との接続部までの範
囲に、軸方向分割線３２がそれぞれ形成され、巾
方向に分割されている。 In FIG. 5, the winding 20 housed in each slot 18 formed in the body 14 has an axial dividing line in the range from the front where it exits from the body to the connection with the pole crossing part 22. 32 are respectively formed and divided in the width direction.
この分割線３２は、通常、巻線２０中最大応力
が生ずる最外層のみに形成されるが、必要に応じ
二層以上の複数層または層全体に形成することも
できる。 The dividing line 32 is usually formed only in the outermost layer of the winding 20 where the maximum stress occurs, but it can be formed in two or more layers or in the entire layer if necessary.
なお、巻線２０の軸方向部と極亘り部２２とは
各層毎に、ロー付け等により電気的に接続されて
いる。 Note that the axial portion of the winding 20 and the pole crossing portion 22 are electrically connected to each other by brazing or the like for each layer.
第６図は本発明の回転子巻線の他の実施例を示
す図であり、この場合は前述の分割線３２の代り
にスリツト３４が形成されている。その他の構成
は第４図の実施例と実質上同一であり、対応部分
はそれぞれ同一符号で表示されている。 FIG. 6 is a diagram showing another embodiment of the rotor winding of the present invention, in which slits 34 are formed in place of the aforementioned dividing line 32. The rest of the structure is substantially the same as the embodiment shown in FIG. 4, and corresponding parts are designated by the same reference numerals.
スリツト３４は、巻線２０の胴部から出る手前
からスピンドル部へ出た部分まで所望の長さ範囲
にわたつて形成されている。この場合も、通常、
前記スリツト３４は巻線２０の最外層（最大応力
発生部）のみに形成されるが、必要に応じ複数層
にわたつて形成することも可能である。 The slit 34 is formed over a desired length range from the front of the winding 20 coming out of the body to the part coming out to the spindle part. Again, usually
The slits 34 are formed only in the outermost layer (the part where the maximum stress occurs) of the winding 20, but they can be formed in multiple layers if necessary.
以上の各実施例では、巻線２０各出口部の分割
線３２またはスリツト３４は一本だけ形成されて
いるが、場合によつては互いに平行な二本または
複数本の分割線またはスリツトにより巾方向に分
割することもできる。このように巻線の胴部出口
部を巾方向に分割することにより、可撓性が増大
し、応力値を半分以下に低減させることができ
る。 In each of the above embodiments, only one dividing line 32 or slit 34 is formed at each outlet of the winding 20, but in some cases two or more dividing lines or slits parallel to each other may be used to increase the width. It can also be divided into directions. By dividing the body outlet portion of the winding in the width direction in this manner, flexibility is increased and the stress value can be reduced to less than half.
以上説明した如く、本発明によれば、巻線の胴
部出口部に軸方向分割線または軸方向スリツトを
形成し、この部分の可撓性（フレキシビリテイ）
を増大したので、従来の一体の巻線に比べ、強制
曲げによる応力値を効果的に低減させることがで
き、信頼性および耐久性に優れた回転子巻線が得
られる。 As explained above, according to the present invention, an axial dividing line or an axial slit is formed at the outlet of the body of the winding, thereby increasing the flexibility of this part.
As a result, the stress value due to forced bending can be effectively reduced compared to a conventional integral winding, and a rotor winding with excellent reliability and durability can be obtained.
第１図は回転電機の回転子の要部を示す部分縦
断面図、第２図は第１図中の線−に沿つた断
面図、第３図は保持環の半径方向膨張変形により
回転子巻線に生ずる強制曲げ変形の状態を示す説
明図、第４図はスピンドル部の曲げ変形により回
転子巻線に生ずる強制曲げ変形の状態を示す説明
図、第５図は本発明の回転子巻線の一実施例の要
部を示す部分斜視図、第６図は本発明の回転子巻
線の他の実施例の要部を示す部分斜視図である。
１２……回転子、１４……胴部、１６……スピ
ンドル部、１８……スロツト、２０……回転子巻
線、２２……極亘り部、３２……分割線、３４…
…スリツト。
Figure 1 is a partial vertical cross-sectional view showing the main parts of the rotor of a rotating electric machine, Figure 2 is a cross-sectional view taken along the line - in Figure 1, and Figure 3 is a partial longitudinal sectional view showing the main parts of the rotor of a rotating electrical machine. FIG. 4 is an explanatory diagram showing the state of forced bending deformation that occurs in the winding. FIG. 4 is an explanatory diagram showing the state of forced bending deformation that occurs in the rotor winding due to bending deformation of the spindle. FIG. 5 is the rotor winding of the present invention. FIG. 6 is a partial perspective view showing the main part of one embodiment of the wire, and FIG. 6 is a partial perspective view showing the main part of another embodiment of the rotor winding of the present invention. DESCRIPTION OF SYMBOLS 12... Rotor, 14... Body part, 16... Spindle part, 18... Slot, 20... Rotor winding, 22... Pole crossing part, 32... Parting line, 34...
...Slit.
Claims (1)
該胴部の両端に形成されたスピンドル部とを有す
る回転子の前記スロツト内に収納された回転子巻
線において、該巻線を前記胴部ではウエツジで支
持しかつ前記スピンドル部では保持環で支持し、
該巻線の前記胴部からスピンドル部へ出る部分を
軸方向分割線または軸方向スリツトにより巾方向
に分割したことを特徴とする回転電機の回転子巻
線。1. In a rotor winding housed in the slot of a rotor having a body in which a plurality of axial slots are formed and a spindle part formed at both ends of the body, the winding is inserted into the body. supported by a wedge in the part and supported by a retaining ring in the spindle part,
A rotor winding for a rotating electric machine, characterized in that a portion of the winding extending from the body to the spindle is divided in the width direction by an axial dividing line or an axial slit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15009679A JPS5674049A (en) | 1979-11-21 | 1979-11-21 | Rotor winding for rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15009679A JPS5674049A (en) | 1979-11-21 | 1979-11-21 | Rotor winding for rotary electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5674049A JPS5674049A (en) | 1981-06-19 |
| JPS6364142B2 true JPS6364142B2 (en) | 1988-12-09 |
Family
ID=15489417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15009679A Granted JPS5674049A (en) | 1979-11-21 | 1979-11-21 | Rotor winding for rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5674049A (en) |
-
1979
- 1979-11-21 JP JP15009679A patent/JPS5674049A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5674049A (en) | 1981-06-19 |
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