JPS605756A - Manufacture of coil end supporting device - Google Patents

Manufacture of coil end supporting device

Info

Publication number
JPS605756A
JPS605756A JP11183683A JP11183683A JPS605756A JP S605756 A JPS605756 A JP S605756A JP 11183683 A JP11183683 A JP 11183683A JP 11183683 A JP11183683 A JP 11183683A JP S605756 A JPS605756 A JP S605756A
Authority
JP
Japan
Prior art keywords
coil
coil end
support device
resin
string
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
JP11183683A
Other languages
Japanese (ja)
Inventor
Tetsuo Yoshimitsu
哲夫 吉満
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 JP11183683A priority Critical patent/JPS605756A/en
Publication of JPS605756A publication Critical patent/JPS605756A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/46Fastening of windings on the stator or rotor structure
    • H02K3/50Fastening of winding heads, equalising connectors, or connections thereto
    • H02K3/505Fastening of winding heads, equalising connectors, or connections thereto for large machine windings, e.g. bar windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE:To reduce the size of a rotary electric machine by rigidly integrating a binding string and a coil end insulating layer with thermosetting resin. CONSTITUTION:The coil ends 1a, 1b, 1c of a plurality of coils which are inserted into the stator coil slots of a rotary electric machine are sequentially continuously wound in a loop shape by a binding string 5 substantially in a direction perpendicular to the longitudinal direction of the coil ends. When fully impregnating the coil, the string 5 is impregnated together with the coil with the same thermosetting resin as that used for the coil, the string 5 is heated together with the coil, and the impregnating resin is hardened. In this manner, the size of the machine can be reduced, and sufficiently supporting and fixing functions can be performed.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は回転電機の固定子スロットに挿入されたコイル
のス四ット外に位置するコイルエンド部を支持する装置
の製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for manufacturing a device for supporting a coil end portion located outside the slot of a coil inserted into a stator slot of a rotating electric machine.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

同期電動機や誘導電動機などの回転1F桟の固定子鉄心
スロットに挿入されたコイルは、その始動時や制動時に
大電流が流れることなどで大きな電磁力を受ける。この
電磁力はコイル全体に加わるのでコイルの支持固定が重
要であるが、とりわけ電磁力によって生ずる機械的振動
に対し、スロット壁と楔とにて拘束されていないコイル
エンド部での支持装置が重要になる。即ち、その支持装
置が不適切な場合には、例えば振動によりコイル絶縁層
内にクラックが生じたり、劣化が進行して絶縁破壊を誘
発したりして1回転型機の運転に支障をきたすことにな
る。
Coils inserted into the stator core slots of rotating 1F crosspieces of synchronous motors, induction motors, etc. are subjected to large electromagnetic forces due to large currents flowing during starting or braking. This electromagnetic force is applied to the entire coil, so it is important to support and fix the coil, but it is especially important to provide support at the end of the coil, which is not restrained by the slot wall and wedge, against mechanical vibrations caused by electromagnetic force. become. In other words, if the support device is inappropriate, for example, vibration may cause cracks in the coil insulation layer, or the deterioration may progress and cause dielectric breakdown, which may interfere with the operation of the single-rotation machine. become.

この種の事故を防ぐため、第1図および第2図1に示す
手法に代表されるように、隣接するコイルエンド部同志
を緊縛糸にて緊縛したコイルエンド部支持装置が広く採
用されているのは周知の通りである。第1図は第1ない
し第6のコイルエンド部(1a)〜(1f)を図示し、
他の図示を省略したコイルエンド部(1)の支持装置(
2)を示す斜視図である。
In order to prevent this type of accident, coil end support devices in which adjacent coil end parts are tied together with binding threads are widely used, as typified by the method shown in Figures 1 and 2. As is well known. FIG. 1 illustrates the first to sixth coil end portions (1a) to (1f),
Support device for the coil end (1) (other illustrations are omitted)
FIG. 2) is a perspective view showing 2).

(2ab) ハ第1のコイルエンド部(la)と第2の
コイルエンド部(1b)とを縛った先細り部であり、(
2bc ) 。
(2ab) C is a tapered part that ties the first coil end part (la) and the second coil end part (1b), (
2bc).

(2cd) 、 (2de) 、(2ef)等は(2a
b)に準じた各先細り部である。第2図は第1図の一つ
の先細り部(2ab)の糸の巻付は状態を示す説明図で
ある。即ち従来の先細り部(2ab)は、ガラスクロス
にエポキシあるいはポリエステル樹脂などの熱硬化性樹
脂を含浸し、半硬化状態に乾燥してこれをテープ状に切
断したような緊縛糸(3)で、まず第1.第2のコイル
エンド部(Ia) 、(lb)を数回巻回し、その後、
 Sl、 $zのコイ/I/ z ンド部(la) 、
 (1b)とで挾まれた空間(4)にて、先に巻回した
緊縛糸を数回巻締めてゆく手法で構成されていた。又1
図示はしないが空間(4)には予めプレスボードなどの
コマを挿入した後、先細りを行なう手法も広く採用され
ている。第2図において、(g)が緊縛糸の始点。
(2cd), (2de), (2ef) etc. are (2a
Each tapered portion conforms to b). FIG. 2 is an explanatory view showing how the thread is wound around one tapered portion (2ab) in FIG. 1. That is, the conventional tapered part (2ab) is a binding thread (3) made by impregnating glass cloth with a thermosetting resin such as epoxy or polyester resin, drying it to a semi-hardened state, and cutting it into a tape shape. First of all. The second coil end parts (Ia) and (lb) are wound several times, and then
Sl, $z carp/I/z end part (la),
It was constructed by tightening the previously wound bondage thread several times in the space (4) sandwiched between (1b) and (1b). Again 1
Although not shown, a method in which a piece of pressboard or the like is inserted in advance into the space (4) and then tapered is also widely adopted. In Figure 2, (g) is the starting point of the binding thread.

(h)が緊縛糸の終点である。そして、緊縛後、加熱し
て、樹脂を硬化させている。
(h) is the end point of the binding thread. After binding, the resin is heated and hardened.

さて、この種の先細りによるコイルエンド部支持装置は
、その巻回緊縛してゆく回数が多いのが特徴であり、そ
れによってこそ、コイルエンド部を支持固定するという
装置の機能を十分に発揮し、きわめて優れた支持装置に
なることが経験的にも裏付けられている。しかしながら
、巻回緊縛してゆく回数が多いということは、逆に多く
の工数を必要とする欠点を持つ。更にはその製造方法が
複雑であり、例えば1巻回緊縛してゆく時に緊縛糸(3
)に与えるテンションの加え方などで1作業者に熟練を
必要とする。又、隣接するコイルエンド部相互間に、先
細りのためにある程度の大きさの空間(4)を必要とし
、回転電機の小形化という点からも留置の一つになって
いた。即ち、上記の従来用いられてきている支持装置に
対し、より簡易な製造方法によって形成できるコイルエ
ンド部支持装置で、小形化にも寄与し得る装置の開発が
強く望まれていた。又、最近になって、回転電機のコイ
ルの絶縁方法として、絶縁層(1x)に樹脂未含浸のコ
イルを固定子鉄心スロットに挿入してから、含浸槽に入
れて樹脂含浸を行なう所謂全含浸方式が多用されるよう
になっている。この全含浸方式の特徴の一つに、絶縁が
他の全含浸しないものに比べて、振動などの機械的スト
レス書二対して強いという長所がある。即ち、この全含
浸方式を行なうコイルのエンド部に従来の先細りによる
装置を適用することは過剰品質であるとの堝えからも、
上記簡略化された支持装置もしくはその支持装置の製造
方法の開発が強く望まれているのが実情である。
Now, this type of tapered coil end support device is characterized by the large number of times it is wound and tied, and this allows the device to fully demonstrate its function of supporting and fixing the coil end. It has been empirically proven that this is an extremely excellent support device. However, the large number of times of winding and binding has the drawback of requiring a large number of man-hours. Furthermore, the manufacturing method is complicated; for example, when binding one winding, the binding thread (3
) requires skill on the part of the operator. Further, a certain amount of space (4) is required between adjacent coil end portions due to the tapering, and this is one of the reasons for keeping the coil end portions small from the viewpoint of downsizing the rotating electric machine. That is, in contrast to the conventionally used support devices described above, there has been a strong desire to develop a coil end support device that can be formed by a simpler manufacturing method and that can also contribute to miniaturization. Also, recently, as a method for insulating coils of rotating electric machines, a so-called total impregnation method is used, in which a coil whose insulating layer (1x) is not impregnated with resin is inserted into the stator core slot, and then placed in an impregnation bath and impregnated with resin. The method is becoming more widely used. One of the characteristics of this full impregnation method is that the insulation is more resistant to mechanical stresses such as vibration than other non-full impregnation insulations. In other words, we believe that applying a conventional tapering device to the end of a coil that performs this full impregnation method is excessive quality.
The reality is that there is a strong desire to develop the above-mentioned simplified support device or a method for manufacturing the support device.

そこで上記簡略化の要望に対して、本発明者は第3図お
よびS4図に示すようなコイルエンド部支持装置を発明
した。第3図はその装置の斜視図であり、第4図はその
装置を形成してゆく状態を示す説明図である。両図にお
いて、第1図およびα′も2図と同一部分には同一符号
な付して設明を省略する。このコイルエンド部支持装置
は従来の緊縛糸より若干太い緊縛糸(3)を使用し、各
コイルエンド部(]、a)〜(1f)をそのコイルエン
ド長手方向に対してほぼ直角方向にループ状に順次連続
的に巻回し、熱硬化性樹脂な全含浸の際コイルと一緒に
含浸し、加熱硬化したものである。このコイルエンド部
(1)の支持装置(2)はその製造工数を減らすという
点において、S1図および第2図で例示した従来の製造
方法によるコイルエンド部(1)の支持装R(2)に比
べ、格段に改良が計られているのは言うまでもない。こ
の第3図、第4図の装置では。
Therefore, in response to the above-mentioned need for simplification, the present inventor invented a coil end support device as shown in FIGS. 3 and S4. FIG. 3 is a perspective view of the device, and FIG. 4 is an explanatory diagram showing the state in which the device is being formed. In both figures, parts that are the same as those in FIG. 1 and α' are designated by the same reference numerals, and descriptions thereof will be omitted. This coil end support device uses binding thread (3) that is slightly thicker than conventional binding thread, and loops each coil end (], a) to (1f) in a direction approximately perpendicular to the longitudinal direction of the coil end. The coil is wound continuously into a shape, and when the entire coil is impregnated with a thermosetting resin, it is impregnated together with the coil, and then heated and cured. This support device (2) for the coil end portion (1) is a support device R (2) for the coil end portion (1) by the conventional manufacturing method illustrated in FIG. S1 and FIG. It goes without saying that this is a significant improvement compared to the previous version. In the apparatus shown in Figs. 3 and 4.

従来から使用されている種類の緊縛糸(3)を使用する
限りにおいて、若干太くしたとしても、コイルエンド部
支持装置としての機能が通常の場合、極端に低下するこ
とが分った。即ち、熟練者が余程の注意力を払い、適切
なテンションを加えて製造しない限り1例えば緊縛糸(
3)とコイルエンド部(1)表面との間にギャップが出
来、始動時などに生じる電磁力を想定した振動を与える
実験をすると。
It has been found that as long as the conventional type of binding thread (3) is used, even if it is made slightly thicker, its function as a coil end support device is usually extremely reduced. That is, unless a skilled person takes great care and applies appropriate tension to the product, for example, bondage thread (
A gap is created between the surface of the coil end (1) and the coil end part (1), and an experiment is performed in which vibration is applied assuming the electromagnetic force that occurs during startup.

緊縛糸(3)もしくはコイルエンド部(1)表面が次第
1−摩耗劣化1.たり、あるいは絶縁層(1x)内部で
クラックを生じたりすることで、全含浸方式といえども
、極端に短い時間にその機能を発揮し得なくなることが
判明した。又、この種の事故は1例えば全含浸された樹
脂を保持したり、加熱硬化の際に絶縁層(IY)の表面
に熱収縮性のテープ巻を施しているような場合には、な
お起り易いととも分った。
The surface of the binding thread (3) or coil end (1) gradually deteriorates due to wear and tear.1. It has been found that even a full impregnation method can no longer perform its function in an extremely short period of time due to cracks occurring inside the insulating layer (1x). In addition, this type of accident may still occur if, for example, a fully impregnated resin is held or a heat-shrinkable tape is wrapped around the surface of the insulating layer (IY) during heat curing. I also found it easy.

〔発明の目的〕[Purpose of the invention]

本発明の目的は1回転箱機の小形化を可能にし、製造容
易で製造工数を低減でき、しかも十分な支持固定の機能
を発揮できるコイルエンド部支持装置の製造方法を提供
することにある。
An object of the present invention is to provide a method for manufacturing a coil end support device that enables miniaturization of a one-rotation box machine, is easy to manufacture, reduces manufacturing man-hours, and can exhibit sufficient support and fixing functions.

〔発明の概要〕[Summary of the invention]

本発明においては、樹脂含浸可能な系板数本と。 In the present invention, several resin-impregnable system boards are used.

熱収縮性系複数本とから成る緊締紐で1回転箱機の複数
本のコイルエンド部をそのコイルエンド長手方向に対し
てほぼ直角方向にループ状に順次巻回し、熱硬化性樹脂
を含浸後、加熱硬化することにより5巻回工数を極端に
減らし、加熱によって緊締紐を収縮させると共に熱硬化
性樹脂で緊締紐とコイル絶縁層とを強固に一体化させ、
十分なコイルエンド支持機能を発揮できるようにするも
のである。
The coil ends of a one-rotation box machine are sequentially wound in a loop shape in a direction approximately perpendicular to the longitudinal direction of the coil ends using a tightening cord consisting of a plurality of heat-shrinkable strings, and then impregnated with a thermosetting resin. By heating and curing, the number of steps required for winding five windings is drastically reduced, the tightening string is contracted by heating, and the tightening string and the coil insulating layer are firmly integrated with a thermosetting resin.
This enables sufficient coil end support function to be exhibited.

〔発明の実施例〕[Embodiments of the invention]

以下1本発明の一実施例について、第5図ないし第7図
を参照して説明する。尚とれらの図において、第1図な
いし第4図と同一部分には同一符号を付して説明を省略
する。
An embodiment of the present invention will be described below with reference to FIGS. 5 to 7. In these figures, the same parts as in FIGS. 1 to 4 are designated by the same reference numerals, and their explanations will be omitted.

本実施例においては、樹脂含浸可能な糸(5a)として
ガラスファイバーを撚った所謂ガラスヤーンな15本と
、熱収縮性糸(5b)として熱収縮性ポリエステルのヤ
ーンを15本用い、これを第7図の如く撚って直径約1
5龍の緊締紐(5)を製造した。尚第7図において樹脂
含浸可能な糸(5a)に斜線を施して示したがこれは熱
収縮性糸(5b)との区別を明瞭にしたものであって断
面表示ではない。そして、この緊締紐(5)を用いて、
回転電機の図示しない固定子コイルスロットに挿入され
た複数本のコイルのコイルエンド部(la) 、 (1
b) 、 (IC)・等をそのコイルエンド長手方向に
対してほぼ直角方向にループ状に順次連続して巻回する
。そしてコイル全含浸の際にコイルと一緒に緊締紐(5
)部も、コイルに用いるのと同じ熱硬化性樹脂を含浸し
、又、コイルと一緒に緊締紐(5)部も加熱して、含浸
樹脂を硬化させる。
In this example, 15 so-called glass yarns made of twisted glass fibers were used as the resin-impregnable threads (5a), and 15 heat-shrinkable polyester yarns were used as the heat-shrinkable threads (5b). Twisted as shown in Figure 7, the diameter is approximately 1
Manufactured 5 Dragon Tightening Straps (5). In FIG. 7, the resin-impregnable thread (5a) is shown with diagonal lines, but this is to clearly distinguish it from the heat-shrinkable thread (5b), and is not a cross-sectional representation. Then, using this tightening string (5),
Coil end portions (la), (1) of multiple coils inserted into stator coil slots (not shown) of a rotating electric machine
b) , (IC), etc. are sequentially and continuously wound in a loop in a direction substantially perpendicular to the longitudinal direction of the coil end. Then, when completely impregnating the coil, attach the tightening string (5
) is also impregnated with the same thermosetting resin used for the coil, and the tightening string (5) is heated together with the coil to harden the impregnated resin.

次に作用について説明する。Next, the effect will be explained.

本実施例では、1本の緊締紐(5)で各コイルエン)’
 m (la) + (lb) 、 (lc)・・・を
単にループ状に巻回連結してゆくだけ゛のもので、その
工数は従来の10〜20チとなり、極端に減少して省力
化が計られる。次に緊締紐(5)には熱収縮性糸(5b
)を15本混ぜており。
In this embodiment, one tightening cord (5) is used for each coil
It simply involves winding and connecting m (la) + (lb), (lc)... into a loop, and the number of steps required is 10 to 20, which is significantly reduced and saves labor. is measured. Next, the tightening string (5) is a heat-shrinkable thread (5b
) are mixed together.

この部分が含浸樹脂を加熱硬化する時に熱収縮し、巻回
時にたとえ緩く巻かれていても、硬化後はコイルエンド
部(1)に密着し、強固にコイルエンド部(1)を支持
するようになる。即ち、巻回連結してゆく場合、テンシ
ョンに対し従来のような配慮を必要としない。つまり、
熟練者でなくても誰でも容易に作業することが可能であ
る。又、緊締紐(5)を巻回するとき、コイルエンド部
(1)との間に多少のギャップが生じていても、或いは
さらに又、コイルエンド部(1)表面に熱収縮性テープ
が巻回されていても、含浸樹脂加熱硬化後は、コイルエ
ンド部(1)に緊締紐(5)が密着するようになる。セ
して又、緊締紐(5)には樹脂含浸可能な糸(5a)を
15本撚り混ぜてあり、この部分には樹脂全含浸工程時
にコイルと一緒に樹脂が含浸され、コイルの絶縁層(1
x)に含浸した樹脂の硬化時、熱収縮性糸(5b)が収
縮し、緊締紐(5)がコイルエンド部(1)表面を密着
固定している状態で、樹脂含浸可能な糸(5a)に含浸
さ −れた樹脂も硬化する。この硬化した樹脂が、樹脂
含浸可能な糸(5a)および熱収縮性糸(5b)の間を
固着し、結果的に極めて機械的拘束力の強いコイルエン
ド部支持装置を形成する。又、加熱硬化時には緊締紐(
5)が収縮するとき、その緊締紐(5)に含浸された樹
脂の一部が滲み出し、この樹脂が緊締紐(5)とコイル
エンド部(1)とを一体的に固着する。この緊締紐(5
)とコイルエンド部(1)とに含浸する樹脂は同一のも
のであるから、一体化は非常に強固なものである。又、
緊締紐(5)は硬化前は極めて柔かい。従って、各コイ
ルエンド部(la) −(zb) 、(Ic)・・・の
間の空間(4)の大きさに応じて緊締紐(5)の横断面
形状が変形するので、従来のような大きい空間(4)を
必要とせず、回転taの小形化を計ることが出来る。
This part shrinks when the impregnated resin is heated and cured, and even if it is wound loosely during winding, it will tightly adhere to the coil end part (1) after hardening and firmly support the coil end part (1). become. That is, when winding and connecting, there is no need to take the tension into account as in the past. In other words,
Anyone can easily operate it, even if they are not experts. Furthermore, when winding the tightening cord (5), even if there is some gap between it and the coil end (1), or even if a heat shrinkable tape is wound on the surface of the coil end (1). Even if the coil end portion (1) is turned, the tightening string (5) will come into close contact with the coil end portion (1) after the impregnated resin is heated and cured. In addition, the tightening string (5) is twisted and mixed with 15 threads (5a) that can be impregnated with resin, and this part is impregnated with resin together with the coil during the entire resin impregnation process, and the insulating layer of the coil is (1
When the resin impregnated in ) is also cured. This hardened resin fixes between the resin-impregnable thread (5a) and the heat-shrinkable thread (5b), resulting in a coil end support device with extremely strong mechanical restraint. Also, during heat curing, the tightening string (
5), a part of the resin impregnated in the tightening string (5) oozes out, and this resin integrally fixes the tightening string (5) and the coil end portion (1). This tightening string (5
) and the coil end portion (1) are impregnated with the same resin, so the integration is very strong. or,
The tightening string (5) is extremely soft before hardening. Therefore, the cross-sectional shape of the tightening string (5) changes depending on the size of the space (4) between each coil end portion (la) - (zb), (Ic)... The rotation ta can be made smaller without requiring a large space (4).

本実施例のコイルエンド部支持作用効果を硬認するため
2次のような実験を行なった。実験用モデルとして4極
、6kv 、’600kwの誘動電動機を用い、固定子
コイルエンド部(1)に上記実施例の支持装置を形成し
たものと、緊締紐(5)の代りに太さを同じにした緊縛
糸(3)による第3図および第4図に示した本実施例に
至る途中で発明したものとを用いた。そして、電磁力お
よび振動を与える方法として、運転中の誘導電動機に回
転方向と反対方向の回転磁界を与へ1反対方向に回転さ
せ、これを繰返す運転、いわゆるブラツギング運転試験
を行なったが、本実施例のものは3万回のプラツギング
運転繰返し実験を行なった後も、コイルエンド部支持機
能は実験前と同じ状態を維持していることが確認された
。これに対して、第3図および第4図に示した例のもの
は、僅か1884回のプラツギング運転繰返し実験で、
緊縛糸(3)が破壊した。これによって本実施例の優れ
ていることが確認され次に第8図および第9図に示す他
の実施例について説明する。これは隣接する各コイルエ
ンド部例えば(1a)と(1b)との2本をまとめて緊
締紐(5)をループ状に巻回し、両者(la) 、 (
lb)間の空間にてループの一部に引掛けてループを巻
締めながら。
In order to confirm the coil end support effect of this example, the following experiment was conducted. A 4-pole, 6 kV, 600 kw induction motor was used as an experimental model, with the support device of the above embodiment formed on the stator coil end (1), and a thicker one in place of the tightening cord (5). The same binding thread (3) that was invented on the way to the present embodiment shown in FIGS. 3 and 4 was used. As a method of applying electromagnetic force and vibration, we applied a rotating magnetic field in the opposite direction to the rotating direction of the induction motor while it was in operation, and performed a so-called bragging operation test in which this was repeated. It was confirmed that the coil end support function of the example was maintained in the same state as before the experiment even after the plugging operation was repeated 30,000 times. In contrast, the examples shown in Figures 3 and 4 require only 1884 repeated plugging operations.
The bondage thread (3) was destroyed. This confirms that this embodiment is superior, and next, other embodiments shown in FIGS. 8 and 9 will be explained. This is done by wrapping the tightening string (5) around two adjacent coil ends, for example (1a) and (1b), in a loop, so that both (la), (
lb) while hooking onto a part of the loop in the space between them and tightening the loop.

順次隣りへ巻回な進めてゆくものであって他は第5図な
いし第7図に示した実施例と同様である。
The windings are wound one after the other, and the rest is the same as the embodiment shown in FIGS. 5 to 7.

このようにすれば巻締めが良好になり、大形の回転電機
でもコイルエンド部支持機能を十分発揮できる作用効果
があり、他の作用効果tン1第5図ないし第7図に示し
た実施例に準じたものとなる。
In this way, the winding can be tightened well, and there is an effect that even a large-sized rotating electric machine can sufficiently exhibit the coil end support function. It follows the example.

次に第10図に示す他の実施例について説明する。Next, another embodiment shown in FIG. 10 will be described.

これは各コイルエンド部例えば(1a)を緊締紐(5)
でループ状に巻回した後、ループの一部に引用けて巻締
めながら、順次隣りへ巻回な進めてゆくものであって、
他は第5図ないし第7図に示した実施例と同様である。
This is done by tightening the string (5) at each coil end, for example (1a).
After winding it in a loop shape, one part of the loop is tightened and the winding is continued to the next one.
The rest is the same as the embodiment shown in FIGS. 5 to 7.

このようにしても第8図および第9−図に示した実施例
と同様な作用効果が得られる。
Even in this case, the same effects as the embodiments shown in FIGS. 8 and 9 can be obtained.

尚1本発明は上記し、かつ図面に示した実施例のみに限
定されるものではなく1例えば緊締紐(5)の樹脂含浸
可能な糸(5a)はガラスヤーンの代りに。
It should be noted that the invention is not limited to the embodiments described above and shown in the drawings; for example, the resin-impregnated thread (5a) of the tensioning cord (5) can be replaced with a glass yarn.

ガラスファイバーを撚ってない紐状のもの、つまりロー
ビングを使用してもよいし、各県(5a) 、(5b)
の本数を変えてもよい等、その要旨を変更しない範囲で
、種々変形して実施できることは勿論である。
You may use a string-like material without twisted glass fibers, that is, roving, or each prefecture (5a), (5b)
It goes without saying that various modifications can be made without changing the gist, such as changing the number of lines.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、緊締紐の巻回工数
を極端に減らし、加熱によって緊締紐を収縮させると共
に、熱硬化性樹脂で緊締紐とコイルエンド部絶縁層とを
強固に一体化させるようにしたので1回転電機を小形化
可能にし、十分な支持機能を有するコイルエンド部支持
装置を安価に製造できる方法となる。
As explained above, according to the present invention, the number of man-hours required for winding the tightening string is extremely reduced, the tightening string is contracted by heating, and the tightening string and the coil end insulating layer are firmly integrated with the thermosetting resin. This makes it possible to downsize a one-rotation electric machine, and provides a method for inexpensively manufacturing a coil end support device having a sufficient support function.

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

第1図は従来の方法にて製造したコイルエンド部支持装
置を示す斜視図、第2図は第1図の緊縛糸を巻回する状
態を示す説明図、第3図は本発明に至る途中で発明した
方法で製造したコイルエンド部支持装置を示す斜視図、
第4図は第3図の緊縛糸を巻回する状態を示す説明図、
第5図は本発明の方法の一実施例にて製造したコイルエ
ンド部支持装置を示す斜視図、第6図は第5図の緊締紐
を巻回する状態を示す説明図、第7図は第5図の緊締紐
を示す要部拡大斜視図、第8図は他の実施例にて製造し
たコイルエンド部支持装置を示す斜視図、第9図は第8
図の緊締紐を巻回する状態を示す説明図、第10図は更
に他の実施例の緊締紐を巻回する状態を示す説明図であ
る。 1・ コイルエンド部1a〜1f・・各コイルエンド部
2・・・支持装置 5・4.緊縛紐 代理人 弁理士 井 上 −男 ai1図 第2図 第3図 第 4 図 第 5 図 第8図
FIG. 1 is a perspective view showing a coil end support device manufactured by a conventional method, FIG. 2 is an explanatory view showing a state in which the binding thread of FIG. 1 is wound, and FIG. A perspective view showing a coil end support device manufactured by the method invented in
FIG. 4 is an explanatory diagram showing a state in which the bondage thread of FIG. 3 is wound;
FIG. 5 is a perspective view showing a coil end support device manufactured by an embodiment of the method of the present invention, FIG. 6 is an explanatory view showing a state in which the tightening string shown in FIG. 5 is wound, and FIG. FIG. 5 is an enlarged perspective view of the main part showing the tightening cord, FIG. 8 is a perspective view showing a coil end support device manufactured in another embodiment, and FIG.
FIG. 10 is an explanatory diagram showing a state in which the tightening cord of the figure is wound, and FIG. 10 is an explanatory diagram showing a state in which the tightening cord of another embodiment is wound. 1. Coil end portions 1a to 1f...Each coil end portion 2...Support device 5.4. Bondage strap agent Patent attorney Inoue - Male AI1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 8

Claims (1)

【特許請求の範囲】 (リ 樹脂含浸可能な先祖数本と、熱収縮性系複数本と
から成る緊縛紐で、回転電機の複数本のコイルエンド部
をそのコイルエンド長手方向に対してほぼ直角方向にル
ープ状に順次巻回し、熱硬化性樹脂を含浸後、加熱硬化
することを特徴とするコイルエンド部支持装置の製造方
法。 (2)熱硬化性樹脂含浸および加熱硬化は1回転型機の
コイルの全含浸硬化工程時に一緒に行なうことを特徴と
する特許請求の範囲第1項記載のコイルエンド部支持装
誼の製造方法。 (3)緊縛紐の巻回はループ状に巻回してゆくときにル
ープの一部に引掛けてループを巻締めながら行なうこと
を特徴とする特許請求の範囲第1項又は第2項記載のコ
イルエンド部支持装置の製造方法。
[Scope of Claims] (Li) A binding cord consisting of several resin-impregnated ancestors and a plurality of heat-shrinkable cords, which can be used to tie multiple coil ends of a rotating electrical machine approximately at right angles to the longitudinal direction of the coil ends. A method for manufacturing a coil end support device, which is characterized by sequentially winding the coil end in a loop shape in a direction, impregnating it with a thermosetting resin, and then heating and hardening it. (2) The thermosetting resin impregnation and heating hardening are performed using a one-rotation machine. A method for manufacturing a coil end support equipment according to claim 1, characterized in that the method is carried out together with the entire impregnation and hardening process of the coil. (3) The binding string is wound in a loop shape. 3. The method for manufacturing a coil end support device according to claim 1, wherein the coil end support device is wound while tightening the loop by hooking it onto a part of the loop.
JP11183683A 1983-06-23 1983-06-23 Manufacture of coil end supporting device Pending JPS605756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11183683A JPS605756A (en) 1983-06-23 1983-06-23 Manufacture of coil end supporting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11183683A JPS605756A (en) 1983-06-23 1983-06-23 Manufacture of coil end supporting device

Publications (1)

Publication Number Publication Date
JPS605756A true JPS605756A (en) 1985-01-12

Family

ID=14571386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11183683A Pending JPS605756A (en) 1983-06-23 1983-06-23 Manufacture of coil end supporting device

Country Status (1)

Country Link
JP (1) JPS605756A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6002213A (en) * 1995-10-05 1999-12-14 International Rectifier Corporation MOS gate driver circuit with analog input and variable dead time band

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6002213A (en) * 1995-10-05 1999-12-14 International Rectifier Corporation MOS gate driver circuit with analog input and variable dead time band

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