JPS58165645A - Preparation of insulated coil - Google Patents
Preparation of insulated coilInfo
- Publication number
- JPS58165645A JPS58165645A JP4627482A JP4627482A JPS58165645A JP S58165645 A JPS58165645 A JP S58165645A JP 4627482 A JP4627482 A JP 4627482A JP 4627482 A JP4627482 A JP 4627482A JP S58165645 A JPS58165645 A JP S58165645A
- Authority
- JP
- Japan
- Prior art keywords
- slot
- hardened
- insulator
- insulating substance
- heat
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【発明の詳細な説明】
(*liの績術分野〕
本発明紘電気絶縁**が嵐好で機械的m度が大なスロッ
ト絶縁物を有する絶縁線輪oli造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing an insulated wire ring having a slot insulator in which the electrical insulation is strong and has a high mechanical strength.
(竜#4OVt術的背景とその間照点〕−転電機、41
にタービン発電機の回転子界磁線輪Oスロット絶縁に使
用する積層形絶縁シートは十分な電気絶縁特性を有する
と共に機械的負荷に耐えるものであることが要求される
。最近ガラスフィラメントや、ガラスクロスを使用した
積層形飴緻シート材料が開動され、これらは電気絶縁特
性が嵐いと同時に横槍的強度も大きく、特KIJJi転
子界磁線輪のスロット絶縁としては適している。(Dragon #4 OVt technical background and points of interest) - Transformer, 41
The laminated insulating sheet used for insulating the rotor field coil O-slot of a turbine generator is required to have sufficient electrical insulation properties and to withstand mechanical loads. Recently, laminated hardwood sheet materials using glass filaments and glass cloth have been introduced, and these have excellent electrical insulation properties and high horizontal strength, making them particularly suitable as slot insulation for KIJJi trochanter field wire rings. There is.
この積層y#絶縁シートをスロット絶縁としで使用する
方法として以下の2つの方法がある。There are the following two methods for using this laminated y# insulation sheet as slot insulation.
その1つは、第1WAに示すIIK、予め鉄心(1)の
U字形スロット(2)側壁と一致する形状で、lラスシ
ートに熱硬化性樹脂を含浸して加熱硬化した積層形絶縁
シートから成るスロット絶縁物(3)を製造しておき一
輪導体(4)を組立てる時にスロット(2)に納める方
法である。この場合スロット底には絶縁スペーサ(5)
があり、一輪導体(4)の上に楔下スベーサ(旬を納め
、この絶縁−輪の遠心力を支える為、横(7)Kより抑
えている。One of them is IIK shown in 1st WA, which has a shape that matches the side wall of the U-shaped slot (2) of the iron core (1), and is made of a laminated insulating sheet that is made by impregnating a lath sheet with a thermosetting resin and curing it by heating. This is a method in which the slot insulator (3) is manufactured and placed in the slot (2) when assembling the single ring conductor (4). In this case, there is an insulating spacer (5) at the bottom of the slot.
There is a wedge under the conductor (4), and in order to support the centrifugal force of this insulating ring, it is suppressed from the side (7) K.
しかし、この場合、スロット結縁物(3)は予め加熱硬
化されている為、組立中0やむを得ない力や、スロット
(2J@−とO寸法差により、空隙が生じている場合、
線輪導体納め時の力等によりき襞が生じ、その結果絶縁
耐力が低下してしまうという間層があり、スロット絶縁
物(至)成形や、縄文に社非常な注意が必要であった。However, in this case, since the slot binding material (3) has been heat-hardened in advance, if a void is created due to unavoidable force during assembly or the difference in dimension between the slot (2J@- and O),
There were creases caused by the force applied when the wire conductor was housed, resulting in a decrease in dielectric strength, which required extreme care when molding the slot insulation and the Jomon process.
一方、もう1つの方法として、菖!fiK示すように、
前記011m及び成形の寸法礒O困難を無くす為、スロ
ット(2)に納める時Kd軟らかく、スロット(2)側
壁になじみやすい橡に、ガラスシートに熱硬化性樹脂な
含浸後、半硬化した積層形絶縁シートから成るスロット
絶縁物(勾を使用する方法がある。この場合スロット絶
縁物(a)は−輪導体(4を挿入した上へ両側から折重
ね、I!(7)で押えた後、加熱硬化させている。On the other hand, there is another method: irises! As fiK shows,
In order to eliminate the above-mentioned 011m and dimensional difficulty in molding, a glass sheet is impregnated with a thermosetting resin and then semi-hardened to form a laminate that is soft when placed in the slot (2) and easily conforms to the side wall of the slot (2). There is a method of using a slot insulator (gradient) made of an insulating sheet. In this case, the slot insulator (a) is folded over the ring conductor (4) from both sides, and after being pressed with I! (7), It is heated and cured.
しかし、この場合KFI、−輪導体(4)納め時は、ス
ロット絶縁物(8)が軟らかい為、−輪導体(4)を納
めた時、その−輪導体(蜀の一部が特に強くスロット絶
縁物体)を圧縮して集中前型を生せしめ、その一部のみ
O絶縁物厚さを薄くしてしまうことがあり、そうすると
、時Ka耐圧試験で破壊してしまうこともある。そうな
るとスロット絶縁物(8)の電気fIIjllI[性が
低下してしまい、つまりは絶縁線輪0IIIIII性を
低下してしまうという結果になっていた。However, in this case, when the KFI - ring conductor (4) is put in, the slot insulator (8) is soft, so when the - ring conductor (4) is put in, the - ring conductor (a part of the ring is particularly strong in the slot). The insulator (insulating object) may be compressed to produce a pre-concentration type, and the thickness of the O insulator may be reduced in only a portion of the pre-concentration type, which may result in destruction during the hour Ka withstand voltage test. In this case, the electrical properties of the slot insulator (8) would be reduced, which would result in a reduction in the properties of the insulating wire.
〔9に@の目的〕
本弛明砿電気給縁特性を維持しながら、機械的強度が大
でs 411に履立時の作業が容易なスロット結縁物を
有する信頼性vaI&い絶縁−輪の製造方法を提供する
ことを目的とする。[Purpose of @9] Manufacture a reliable VAI & high insulation ring having a slot connection which has high mechanical strength and is easy to work during installation while maintaining the electrical supply characteristics The purpose is to provide a method.
本尭11においては鉄心のU字形スロット内に挿入する
絶縁線輪の製造方法において、まず、ガラスシートに熱
硬化性樹脂を含浸して半硬化したU字形の外側スロット
絶縁物を前記スロットに納め、そO内@pc、スロット
底部で分割されあらかじめ前記スロットの側壁形状に一
致した形状にガラスシー)KII&硬化性樹脂な含浸し
て加熱硬化した内側スロット絶縁物を納め、その内11
KIi輪導体を納め、その後、前記外側スロット絶縁物
を加熱硬化することにより、組立が容易で、電気絶縁骨
性を維持しながら機械的度の大なスロット結縁物を有す
る信頼性の^い絶縁線輪を製造する。In this method of manufacturing an insulated wire ring to be inserted into a U-shaped slot of an iron core, first, a semi-cured U-shaped outer slot insulator made by impregnating a glass sheet with a thermosetting resin is placed in the slot. , In the inside of the slot, 11 of them are divided at the bottom of the slot and filled with a glass sheet in a shape that matches the side wall shape of the slot.
By enclosing the KIi ring conductor and then heat-curing the outer slot insulation, a reliable insulation with slot connections that is easy to assemble and has high mechanical strength while maintaining electrical insulation integrity is created. Manufactures wire wheels.
〔発Ij110実施例〕
以下、本発明の一実施例について、菖31mを参照して
i1!嘴する。菖3−において、(1)は鉄心、(8)
はu*mのスロットである。スロット(2) jE K
a絶縁スペーサ(5)を敷く。次にガラスシートに熱
硬化性樹脂を含浸して半硬化したU字形O積層ji#絶
縁シートから成る外側スロット絶縁物(9)を−紀スロ
ット(2)内の絶縁スペーサ(5)上に納める。そO内
側に、スロット(2)底部で分割されあらかじめ前記ス
ロット(2)の側壁形状に一致した形状Knラスシート
に熱硬化性樹脂を含浸して加熱硬化した積層形絶縁シー
トから成る内側スロット結縁物甑呻を納める。その内筒
に複数ターンの線輪導体(4)を各ターン閲にターン結
縁物(IIJを介在させながら納める。[Embodiment of Ij110] Hereinafter, regarding an embodiment of the present invention, i1! with reference to irises 31m. Beak. In Iris 3-, (1) is the iron core, (8)
is u*m slot. Slot (2) jE K
a. Lay out the insulating spacer (5). Next, an outer slot insulator (9) consisting of a U-shaped O laminated insulation sheet semi-cured by impregnating a thermosetting resin into a glass sheet is placed on the insulation spacer (5) in the slot (2). . Inside the slot (2), there is an inner slot tie made of a laminated insulating sheet which is divided at the bottom of the slot (2) and has a shape that matches the side wall shape of the slot (2) in advance and is made by impregnating a thermosetting resin with a laminated insulating sheet and curing it by heating. I hold my breath. A plurality of turns of the wire conductor (4) are housed in the inner cylinder with a turn connection (IIJ) interposed between each turn.
−輪導体(4)の最上部は楔下スペーサ(6)を介して
横(7)で抑えろ。その後金体を加熱することにより、
外側スロット絶縁物(9)を加熱硬化させる。- Hold the top of the ring conductor (4) horizontally (7) through the wedge spacer (6). By then heating the metal body,
Heat cure the outer slot insulation (9).
次に作用について説明する。Next, the effect will be explained.
まずI&初に半硬化した外側スロット絶縁物(9)を挿
入するのであるが、この外側スロット絶縁物(9)は幾
分軟らかいので、スロット(2)側壁形状になじみ鳥い
。又、組立中にき裂を生じることなく組立てることがで
きる。次に加熱硬化した内側スロット絶縁物a時を組立
てる場合に1その内側スロット絶縁物−の加熱成形後の
寸法が、スロワ) +2111111形状と僅かな寸法
誤差があっても、前記の軟らかい外側スロット絶縁物(
9)が、クッション材として働く為、部分的な集中応力
が尭生せず、**が生じK<くなる。さらに万が−その
硬化した方の内側スロット絶縁物−にき豐が生じても、
その外側には、き裂のない外側スロット絶縁物があるの
で、電気絶l&特性として紘何ら問題がない。又、一方
外側スロット給縁物(9)は従来と異なり、軟らかい半
硬化状■の時に、直接線輪導体(4)によって集中荷重
を受けずに、はぼスロット(2)形状に近い形状に加熱
硬化された内側スロット絶縁物が一輪導体(4)との間
にあるので、線輪導体(4)から受ける荷重はムく分散
される。その為に一部分のみ極端に厚さが薄くなり結縁
耐圧が低下すゐ七いう間層も無くなる。又、ある程度の
部分的な厚8の変化は、その内側に加熱硬化した内側ス
ロット絶縁物−があるので、全体O絶縁耐力の低下は問
題となる龜に紘低下しない。更に組立後、外側スロット
絶縁物(9)を加熱硬化させる時、その半硬化状11に
含浸されていた!!I&硬化性樹脂により、両スロット
a8緻物(9) 、 filは接着されて一体OもOと
なる。以上の結果スロット絶縁物は絶縁用として鍛適な
形状として硬化されたものとなり、信鯛性の高い絶縁線
輪が得られる。First, a semi-hardened outer slot insulator (9) is inserted, but since this outer slot insulator (9) is somewhat soft, it does not conform to the shape of the side wall of the slot (2). Furthermore, it can be assembled without causing any cracks during assembly. Next, when assembling the heat-hardened inner slot insulator a, the dimensions of the inner slot insulator after heat forming will be the same as the soft outer slot insulator, even if there is a slight dimensional error from the shape of the thrower). thing(
9) acts as a cushioning material, so that local concentrated stress does not occur, and ** occurs and K<. Furthermore, even if the hardened inner slot insulation should become scratched,
Since there is a crack-free outer slot insulator on the outside, there are no problems with electrical isolation and characteristics. On the other hand, the outer slot feeder (9) differs from the conventional one in that when it is in a soft semi-hardened state, it is not subjected to concentrated load directly by the wire ring conductor (4), and has a shape close to that of the hollow slot (2). Since the heat-cured inner slot insulation is between the single ring conductor (4), the load received from the single ring conductor (4) is evenly distributed. For this reason, the thickness of only one part becomes extremely thin, the bonding withstand voltage decreases, and the intermediate layer also disappears. Moreover, since there is a heat-hardened inner slot insulator inside the partial thickness 8 change to a certain extent, the overall O dielectric strength does not deteriorate to the extent that it becomes a problem. Furthermore, when the outer slot insulator (9) was heated and cured after assembly, the semi-cured material 11 was impregnated! ! Both slots A8 and fil are bonded together by I&curable resin, and O becomes O as well. As a result of the above, the slot insulator is hardened into a shape suitable for insulation, and an insulated coil with high reliability can be obtained.
尚、本発明は上記し、かつ11i1面に示した実施例の
みに限定されるもOではなく、例えばスロット(2)
*の絶縁スペーサ(5)や楔下スペーサ(6)を使用し
なくても良い等、その豐旨な変更しない範囲で、檎々変
形して実施できることは勿論である。Although the present invention is not limited to the embodiment described above and shown on page 11i1, it is not limited to O, but for example, slot (2).
Of course, it is possible to carry out various modifications as long as the purpose is not changed, such as not having to use the insulating spacer (5) or the wedge spacer (6).
(弛嘴の効果〕
以上説−したように、本発明によれば、外側に半硬化の
外側スロット絶縁物を納め、そO内側にイ
スロット側壁の形状に加熱硬化した内側スロット絶縁物
を納め、その中に線輪導体を組立後、錬紀半硬化O外側
スロット絶縁物を加熱硬化するととKよって形成するの
で、組立が容易で、電気絶縁特性を維持しながら、機械
的強度の大なスロット絶縁物を有する信頼性の嶌い絶縁
線輪の製造方法となる。(Effect of loose beak) As explained above, according to the present invention, a semi-hardened outer slot insulator is placed on the outside, and an inner slot insulator heated and hardened in the shape of the slot side wall is placed inside the slot. After assembling the wire conductor therein, the semi-hardened O outer slot insulation is heated and hardened to form a semi-hardened O outer slot insulator, which is easy to assemble and has high mechanical strength while maintaining electrical insulation properties. The present invention provides a method for manufacturing a reliable insulated coil having a slot insulator.
第1図および1m2図はそれぞれ異なる従来の方法で製
造した絶縁線輪を示す断面図、!1I3−紘本尭嘴の方
法の一実施例で製造途中の絶縁線輪を示す断面−である
。
!・・・鉄心 2−・・スロット4・・・線
輪導体 6・・・楔下スペーサ7・・・$
9・・・外側スロット絶縁物IQ・・・内側
スロット絶縁物 ・
代理人 弁理士 井 上 −男
第 1 図
第 2 図
第 3 図
、り?Figures 1 and 1m2 are cross-sectional views showing insulated wire rings manufactured using different conventional methods. 1I3 - A cross section showing an insulated wire ring in the process of being manufactured by an example of Takazuki Hiromoto's method. ! ... Iron core 2 - ... Slot 4 ... Wire conductor 6 ... Wedge spacer 7 ... $
9... Outer slot insulator IQ... Inner slot insulator ・ Agent Patent attorney Mr. Inoue Figure 1 Figure 2 Figure 3, Ri?
Claims (2)
の製造方法において、まず、ガラスシートに熱硬化性樹
Mを含浸して中値化したU!#形O外伺スロット絶縁物
を―起スロットに納め、そO内側に、スロット底部で分
割されあらかじめ前記スロットo*ai形状に一致した
S状にガラスシートtC島硬化性樹層を含浸して加熱硬
化した内部スロット色縁物を納め、そO内側に線輪導体
を納め、その俵、鋳記外個スロット飴縁吻をallIk
41Ii゛化することを特徴とする絶縁−輸oR造方法
。(1) In the method of manufacturing an insulating wire to be inserted into a U-shaped slot of an iron core, first, a glass sheet is impregnated with a thermosetting resin M to make the U! A #-shaped O outer slot insulator is placed in the opening slot, and the inside of the O is impregnated with an S-shaped glass sheet tC island hardening tree layer that is divided at the bottom of the slot and matches the slot o*ai shape in advance. Place the heat-hardened inner slot colored edge, place the wire conductor inside it, and attach the inner slot edge to the outside of the bale and casting.
41Ii'.
たことを特徴とする特許−求OIi圃JI1項vi2棋
の飴縁線−〇製造方法。(2) A method for manufacturing a patented candy line for chess (vi2), characterized in that the uppermost parts of the four wire rings are held bare through a yokocho spacer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4627482A JPS58165645A (en) | 1982-03-25 | 1982-03-25 | Preparation of insulated coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4627482A JPS58165645A (en) | 1982-03-25 | 1982-03-25 | Preparation of insulated coil |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58165645A true JPS58165645A (en) | 1983-09-30 |
Family
ID=12742640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4627482A Pending JPS58165645A (en) | 1982-03-25 | 1982-03-25 | Preparation of insulated coil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58165645A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150249372A1 (en) * | 2012-09-26 | 2015-09-03 | Mitsubishi Electric Corporation | Electric machine |
GB2571107A (en) * | 2018-02-16 | 2019-08-21 | Rolls Royce Plc | Metal coil fabrication |
-
1982
- 1982-03-25 JP JP4627482A patent/JPS58165645A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150249372A1 (en) * | 2012-09-26 | 2015-09-03 | Mitsubishi Electric Corporation | Electric machine |
US9831734B2 (en) * | 2012-09-26 | 2017-11-28 | Mitsubishi Electric Corporation | Electric machine |
GB2571107A (en) * | 2018-02-16 | 2019-08-21 | Rolls Royce Plc | Metal coil fabrication |
US11177712B2 (en) | 2018-02-16 | 2021-11-16 | Rolls-Royce Plc | Metal coil fabrication |
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