JPH06276706A - Electric apparatus coil and electric apparatus having coil as well as its manufacture - Google Patents
Electric apparatus coil and electric apparatus having coil as well as its manufactureInfo
- Publication number
- JPH06276706A JPH06276706A JP5543893A JP5543893A JPH06276706A JP H06276706 A JPH06276706 A JP H06276706A JP 5543893 A JP5543893 A JP 5543893A JP 5543893 A JP5543893 A JP 5543893A JP H06276706 A JPH06276706 A JP H06276706A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- interlayer insulation
- conductors
- conductor
- insulation
- 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.)
- Granted
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Windings For Motors And Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、導体とこの間に挿入す
る層間絶縁とより成る電気機器コイル及びコイルを有す
る電気機器並びにその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device coil composed of a conductor and an interlayer insulation inserted between the conductor, an electric device having the coil, and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】電気機器のコイルを冷却する方法として
導体と冷媒を直接接触させるタイプの冷却方式では、冷
却効率を高めるため導体と冷媒の間には絶縁層を用いず
にコイルを形成することが必要とされる。従来、このよ
うなコイルに対する層間絶縁としては、シート状の絶縁
を導体間に挿入していき、コイルを形成する方式がとら
れている。電気機器の中で、特に発電機，電動機や、粒
子加速機などでは、鞍型をしたコイルを用いるのが一般
的である。2. Description of the Related Art In a cooling system of a type in which a conductor and a refrigerant are in direct contact with each other as a method for cooling a coil of an electric device, a coil is formed without using an insulating layer between the conductor and the refrigerant in order to enhance cooling efficiency. Is required. Conventionally, as interlayer insulation for such a coil, a method of forming a coil by inserting sheet-like insulation between conductors has been adopted. Among electric devices, particularly in generators, electric motors, particle accelerators and the like, saddle type coils are generally used.
【０００３】鞍型形状のコイルでは、コイル直線部とコ
イル直線部の間のコイル円弧部において、コイル中心線
状では円形状もしくは楕円形状であるが、コイルの縁の
軌跡は単純な円形や楕円形ではなく、正確な形状を記述
するには非常に複雑なものとなる。しかもこのコイル円
弧部の形状はコイル積層方向高さ位置によってそれぞれ
異なった形状をしているため、その高さにあった形状を
一枚一枚製作しなければならない。実際の層間絶縁製作
にあたっては各高さでの層間絶縁を、その形状に合わ
せ、円形状または楕円形状で近似して切断を行ってい
る。In the saddle type coil, the coil center line is circular or elliptical in the coil arc portion between the coil straight portions, but the locus of the edge of the coil is a simple circle or ellipse. It is very complicated to describe an exact shape, not a shape. Moreover, since the shape of the coil arc portion is different depending on the height position in the coil stacking direction, it is necessary to manufacture each shape corresponding to the height. In the actual manufacture of interlayer insulation, the interlayer insulation at each height is cut according to its shape in a circular or elliptical shape.
【０００４】しかしながら、精密な形状が要求される機
器、とくに超電導導体を用いた粒子加速機等の鞍型コイ
ルでは、層間絶縁の製作方法として点列データをＮＣ機
器に入力し、層間絶縁材料の切断を行っている。このよ
うなＮＣ機を用いた層間絶縁製作方法では、何百ター
ン、時には何千ターンにも及ぶ鞍型コイルを形成するた
めに、膨大な費用と時間を費やすことになる。However, in a device requiring a precise shape, particularly in a saddle type coil such as a particle accelerator using a superconducting conductor, point sequence data is input to an NC device as a method of manufacturing the interlayer insulation, and the interlayer insulation material We are cutting. In the interlayer insulation manufacturing method using such an NC machine, enormous cost and time are consumed to form a saddle coil having hundreds of turns and sometimes thousands of turns.
【０００５】[0005]
【発明が解決しようとする課題】即ち、鞍型形状のコイ
ルのうち、図６に示すような部分、すなわちコイルの直
線部６と直線部７の間のコイルの円弧部８では、その形
状が円形でもなければ楕円形でもない複雑な形状とな
り、又円弧部８ではその層間絶縁３Ａを製作するために
は図７に示すように、絶縁シート９にＮＣ機器などを用
いてケガキを行い、切断するという方法を用いなければ
ならなかった。ターン数の多いコイルでは、このような
ＮＣ機器を用いて層間絶縁３Ａを製作することは、製作
費用が膨大になり、さらに製作時間をも多大に費やして
いた。That is, of the saddle-shaped coil, as shown in FIG. 6, that is, in the arc portion 8 of the coil between the linear portions 6 and 7 of the coil, the shape is The arc shape has a complicated shape that is neither circular nor elliptical. In order to manufacture the interlayer insulation 3A in the arc portion 8, as shown in FIG. 7, the insulation sheet 9 is marked with an NC device or the like and cut. I had to use the method of doing. In the case of a coil having a large number of turns, manufacturing the interlayer insulation 3A using such an NC device entails a huge manufacturing cost and a large amount of manufacturing time.
【０００６】一方、絶縁シート９を切り出しにより製作
した層間絶縁３では、導体間に挿入しただけでは、導体
間でずれや滑りを生じ、絶縁性能を悪化させるばかりで
なく、コイル内で層間短絡現象が発生した場合には、コ
イルを溶断し大事故となる可能性もある。尚、この種の
技術として、特開平4−56548号公報，実開平3−23812号
公報を挙げることが出来る。On the other hand, in the inter-layer insulation 3 produced by cutting out the insulation sheet 9, if it is simply inserted between the conductors, not only will the conductors be displaced or slipped to deteriorate the insulation performance, but also the inter-layer short-circuit phenomenon will occur in the coil. In case of occurrence, there is a possibility that the coil is melted and a serious accident occurs. Incidentally, as this type of technique, there are JP-A-4-56548 and JP-A-3-23812.
【０００７】本発明の目的は、コイルの製作時間を大幅
に低減し、且つ電気絶縁性能も高めた信頼性の高い電気
機器コイルとそ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 highly reliable coil for electric equipment and a method for manufacturing the coil, in which the manufacturing time of the coil is significantly reduced and the electrical insulation performance is improved.
【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、本発明の電気機器コイルは、積層された導体と、そ
の導体間に押圧された柔軟性を有する層間絶縁とを複数
層積層し、層間絶縁の内周縁側及び外内周縁側の一部が
導体側積層方向にはみ出した突出部を備えたことにあ
る。In order to achieve the above object, an electric device coil of the present invention has a plurality of laminated conductors and a flexible interlayer insulation layer pressed between the conductors. A part of the inner peripheral edge side and the outer inner peripheral edge side of the interlayer insulation is provided with a protruding portion protruding in the conductor-side laminating direction.
【０００９】[0009]
【作用】コイルの円弧部の複雑な形状にしたがって層間
絶縁も変形するので、従来の絶縁シートのようにコイル
形状に合わせてを一枚一枚製作したのに比べて、大幅に
作業時間を短縮出来ると共に、電気絶縁性能を高めこと
が出来るようになった。[Function] Since the interlayer insulation is also deformed according to the complicated shape of the arc portion of the coil, the work time is greatly reduced compared to the conventional insulation sheet, which is manufactured individually according to the coil shape. Along with being able to do so, it has become possible to improve the electrical insulation performance.
【００１０】[0010]
【実施例】以下、本発明の実施例を図１乃至図５を用い
て説明する。Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.
【００１１】図３の発電機に使用される回転子１０は、
回転軸１１に回転子コア１２を固着し、回転子コア１２
の外周にはティース１３とウェッジ１４を形成し、これ
らに鞍型形状の界磁コイル１を装着し、界磁コイル１の
一端はリティニングリング１５により押圧され支持され
ている。The rotor 10 used in the generator of FIG.
The rotor core 12 is fixed to the rotating shaft 11,
Teeth 13 and wedges 14 are formed on the outer circumference of, and saddle-shaped field coil 1 is attached to these, and one end of field coil 1 is pressed and supported by retaining ring 15.
【００１２】界磁コイル１（以下コイルと称する）と同
じ鞍型形状のコイル１は、図１に示すように発電機，電
動機などの回転子コイル、及び粒子加速機等で用いられ
ており、さらに冷却特性を向上させるために、冷媒がコ
イル導体に直接接触するような冷却方式をとっている。
このような方式では、導体２に直接絶縁を巻付けること
は、その冷却性能を低下させるため、用いられておら
ず、導体間に層間絶縁３を置くだけの構造としている。A saddle-shaped coil 1 which is the same as the field coil 1 (hereinafter referred to as a coil) is used in a rotor coil of a generator, an electric motor, a particle accelerator, etc., as shown in FIG. In order to further improve the cooling characteristics, a cooling system is adopted in which the refrigerant directly contacts the coil conductor.
In such a system, the fact that the insulation is wound directly around the conductor 2 lowers the cooling performance thereof, and therefore is not used, and the interlayer insulation 3 is merely placed between the conductors.
【００１３】本発明では、図１に示すようにコイル形成
時に導体２を巻線する際に、断面が円形形状のチューブ
型絶縁部材４を平坦に潰した層間絶縁３を形成する。層
間絶縁３にはエポキシー系のプレプレグレジンを塗布す
る。レジンを塗布した層間絶縁３を導体２の間に挿入
し、且つ巻込みながら巻回して鞍型形状のコイル１を形
成する。そうすると、図２のように積層された導体２
と、これら導体間に押圧されて配置された柔軟性を有す
る層間絶縁３と、各層間絶縁の側端面が導体積層方向に
はみ出して形成された突出部５を備えたコイル１を構成
する。このコイル１を加熱装置に配置してレジンを硬化
させて導体２を層間絶縁３に固着させる。In the present invention, as shown in FIG. 1, when the conductor 2 is wound during coil formation, the tube-shaped insulating member 4 having a circular cross section is flattened to form the interlayer insulation 3. Epoxy prepregresin is applied to the interlayer insulation 3. The inter-layer insulation 3 coated with resin is inserted between the conductors 2 and wound while being wound to form the saddle-shaped coil 1. Then, the conductor 2 stacked as shown in FIG.
And a flexible inter-layer insulation 3 which is pressed between these conductors and arranged, and a side wall of each inter-layer insulation projecting in the conductor stacking direction. The coil 1 is placed in a heating device to cure the resin and fix the conductor 2 to the interlayer insulation 3.
【００１４】チューブ型絶縁部材４としてガラス繊維を
編むことにより製作されたものを用いると、柔軟で伸縮
性があり複雑な形状にも間隙なく巻付けを行うことが可
能となる。この層間絶縁３として、テープ状のフレキシ
ブルな材料を用いてもよい。チューブ型の層間絶縁３の
幅は導体２の幅より広く形成されている。チューブ型の
層間絶縁３を導体２の間に挿入しながら巻込んで巻回す
る時に、巻回力が導体で層間絶縁３を押圧する押圧力と
して働き、コイル形成後のコイル断面が図２に示すよう
に、層間絶縁３の内周縁側及び外周縁側の一部が導体積
層方向に沿ってはみ出す突出部５を形成して、層間絶縁
３のずれ，滑りを防止する効果が生まれる。When the tube-type insulating member 4 manufactured by weaving glass fiber is used, it is possible to wind even a complicated shape which is flexible and stretchable without a gap. A tape-shaped flexible material may be used as the interlayer insulation 3. The width of the tube-type interlayer insulation 3 is formed wider than the width of the conductor 2. When the tube-shaped inter-layer insulation 3 is inserted between the conductors 2 and wound, the winding force acts as a pressing force for pressing the inter-layer insulation 3 with the conductors, and the coil cross section after forming the coil is shown in FIG. As described above, a part of the inner peripheral edge side and the outer peripheral edge side of the inter-layer insulation 3 is formed with the protruding portion 5 protruding along the conductor stacking direction, and the effect of preventing the inter-layer insulation 3 from slipping or slipping is produced.
【００１５】一方、コイル１においてこの層間絶縁３に
ずれ，滑りが生ずるといわゆるレアショートが発生する
可能性が高くなる。レアショートが発生した場合、その
ショートした１ターンとその他の全ターン数との比で、
トランス効果で多大な電流が流れることになり、特に巻
線数が多く、通電電流も多い超電導機器等では、コイル
の溶断は必至であり大事故となるが、本発明の突出部５
により防止できる。On the other hand, if the interlayer insulation 3 of the coil 1 is displaced and slips, a so-called rare short circuit is likely to occur. When a rare short occurs, the ratio of the shorted turn to the total number of other turns,
Due to the transformer effect, a large amount of current flows, and particularly in a superconducting device or the like having a large number of windings and a large energizing current, the melting of the coil is inevitable and causes a serious accident.
Can be prevented by
【００１６】上述したように、本発明では、次のような
効果を達成することが出来るようになった。As described above, according to the present invention, the following effects can be achieved.
【００１７】１）柔軟で伸縮性があるチューブ型絶縁部
材の層間絶縁３を使用したので、コイル１の円弧部７の
複雑な形状にしたがって層間絶縁３も変形するので、従
来の層間絶縁のように絶縁シートよりコイル形状に合わ
せて、一枚一枚製作したのに比べて、大幅に作業時間を
短縮出来るようになった。1) Since the interlayer insulation 3 which is a flexible and stretchable tube type insulation member is used, the interlayer insulation 3 is also deformed according to the complicated shape of the arc portion 7 of the coil 1, so that it is different from the conventional interlayer insulation. Moreover, compared with the case where each sheet is manufactured individually according to the coil shape from the insulating sheet, the work time can be shortened significantly.
【００１８】２）突出部５は導体２の内周縁側及び外周
縁側の一部を覆うように突起しており、コイル１のず
れ，滑りが生じにくくなるばかりでなく、コイル層間の
沿面距離が増大しレアショートの可能性を多分に低減す
ることが出来るようになった。2) The projecting portion 5 is projected so as to cover a part of the inner peripheral edge side and the outer peripheral edge side of the conductor 2, and not only the coil 1 is less likely to be displaced and slipped, but also the creepage distance between the coil layers is increased. It has become possible to reduce the possibility of rare short circuit by increasing.
【００１９】又、突出部５は導体縁での沿面距離を増大
し、導体部分での層間絶縁の厚みを薄くすることも可能
となり、所定の寸法に対し巻ターン数をふやすことも可
能となる。特に、チューブ型絶縁部材の層間絶縁３を使
用すると、突出部５の形状は円弧状となり、電界集中を
生じることがない。Further, the protrusion 5 can increase the creepage distance at the conductor edge, reduce the thickness of the interlayer insulation in the conductor portion, and increase the number of winding turns for a predetermined dimension. . In particular, when the interlayer insulation 3 of the tube type insulating member is used, the shape of the protruding portion 5 becomes an arc shape, and electric field concentration does not occur.
【００２０】更に、コイルとしては、電磁力やその他の
機械的な力（回転子における遠心力など）に対し変動量
の少ない、すなわちヤング率の高いコイルが望まれる。
特に超電導を用いたコイルでは、コイルのスリップなど
によりクエンチ現象が発生してしまうため、コイルの動
きを発生させないことは、重要なことである。Further, it is desired that the coil has a small fluctuation amount with respect to electromagnetic force and other mechanical forces (such as centrifugal force in the rotor), that is, a high Young's modulus.
In particular, in a coil using superconductivity, a quench phenomenon occurs due to a slip of the coil or the like, so it is important to prevent the coil from moving.
【００２１】このチューブ型層間絶縁材料としてガラス
繊維を用いるとその繊維内にエポキシ等の樹脂を含浸す
ることは、容易に行うことができる。エポキシを含浸し
コイル形成後にエポキシを所定の温度でキュアすると、
更に導体ずれも滑りも発生しないコイルとなるのに加
え、キュア時にコイルを積層方向から加圧するとさらに
導体と層間絶縁が密着しヤング率の高い強固なコイルを
形成することが可能となる。When glass fibers are used as the tube-type interlayer insulating material, it is easy to impregnate the fibers with a resin such as epoxy. When the epoxy is cured and the epoxy is cured at a predetermined temperature after coil formation,
Furthermore, in addition to a coil in which neither conductor displacement nor slippage occurs, when the coil is pressed from the stacking direction during curing, the conductor and interlayer insulation are further intimately contacted, and a strong coil having a high Young's modulus can be formed.
【００２２】３）上述のように、エポキシ等の樹脂を加
熱硬化する場合には、巻線全体を恒温室に入れるか、巻
線部にヒータを配置し温度管理をしながら行う。3) As described above, when the resin such as epoxy is cured by heating, the entire winding is placed in a thermostatic chamber, or a heater is arranged in the winding portion to control the temperature.
【００２３】しかしながら、コイルを保持する金属ボビ
ンが大きい場合には、コイル全体を恒温室に入れること
は困難となり、またヒーターや熱風ブロアーを用いて温
度を上げようとしてもボビンに熱がとられ容易に温度を
上げることができなくなる。そこで、上記の樹脂含浸型
のチューブ層間絶縁を加熱硬化する場合には、導体自体
に電流を通電し温度上昇を促すと効果的である。すなわ
ち、電流通電により容易にしかも均一な温度上昇を層間
絶縁部に与えることが可能となり、しかもどんなに大き
なコイルであっても、恒温室設備のように設備的に大き
な問題となることはない。However, if the metal bobbin holding the coil is large, it is difficult to put the entire coil in a thermostatic chamber, and even if the temperature is raised by using a heater or a hot air blower, the bobbin receives heat and is easily removed. It becomes impossible to raise the temperature. Therefore, when the resin-impregnated tube interlayer insulation is heat-cured, it is effective to apply a current to the conductor itself to promote a temperature rise. That is, it is possible to easily and evenly increase the temperature of the interlayer insulating portion by energizing the current, and no matter how large the coil is, it does not pose a big problem in terms of equipment like the temperature-controlled room equipment.
【００２４】層間絶縁として絶縁耐力をさらに向上させ
るためには、層間絶縁としてポリイミドなどの絶縁耐力
の大きいものを用いることが望まれる。本発明で用いて
いるチューブ型層間絶縁では、図４に示すようにガラス
チューブ内部２にポリイミドフィルム１０を挿入する
と、特に導体の形状に突起部（ねじり導体）があり、突
起部がチューブ型層間絶縁を押圧すると、フィルム１０
により層間絶縁が破損するのを防止出来る。In order to further improve the dielectric strength as the interlayer insulation, it is desired to use polyimide or the like having a large dielectric strength as the interlayer insulation. In the tube-type interlayer insulation used in the present invention, when the polyimide film 10 is inserted into the glass tube interior 2 as shown in FIG. 4, there is a protrusion (twisted conductor) particularly in the shape of the conductor, and the protrusion is the tube-type interlayer insulation. Pressing the insulation, film 10
This can prevent the interlayer insulation from being damaged.
【００２５】また、フィルムを挿入する方法としてチュ
ーブを製作する際にその芯となる繊維巻付け棒１１に予
めフィルムを巻付けて製作することにより、図５に示す
ようなフィルム入りチューブも可能である。このような
層間絶縁を用いることにより、さらに絶縁厚みを薄くす
ることが可能となり、同一寸法でより多くのターン数を
持つコイルを製作することが可能となる。As a method of inserting a film, a film-containing tube as shown in FIG. 5 is also possible by winding the film around the fiber winding rod 11 which is the core of the tube when manufacturing the tube. is there. By using such interlayer insulation, the insulation thickness can be further reduced, and a coil having the same size and a larger number of turns can be manufactured.
【００２６】[0026]
【発明の効果】本発明の層間絶縁を用いたコイルでは、
製作時間も大幅に削減が可能となった。又コイルにおい
ては、沿面距離を増大し、耐電圧性能面で大きく向上す
る事が出来るので、その分回転電機を小型化できると共
に、絶縁性能の向上，層間絶縁の厚み低減が可能とな
り、同一寸法で多くのターンを構成することが可能とな
る。According to the coil using the interlayer insulation of the present invention,
Production time has also been significantly reduced. In addition, in the coil, the creepage distance can be increased and the withstand voltage performance can be greatly improved. Therefore, the rotating electric machine can be downsized, the insulation performance can be improved, and the thickness of the interlayer insulation can be reduced. It is possible to configure many turns with.
【図１】図３の回転子に使用したコイルの斜視図であ
る。FIG. 1 is a perspective view of a coil used in the rotor of FIG.
【図２】図３の回転子の積層側断面である。2 is a cross-sectional side view of the rotor of FIG.
【図３】本発明の実施例を示した回転電機の回転子の斜
視図である。FIG. 3 is a perspective view of a rotor of a rotary electric machine showing an embodiment of the present invention.
【図４】本発明の他の実施例を示したチューブ型層間絶
縁の斜視図である。FIG. 4 is a perspective view of tube-type interlayer insulation showing another embodiment of the present invention.
【図５】本発明の他の実施例を示したチューブ型層間絶
縁の斜視図である。FIG. 5 is a perspective view of tube-type interlayer insulation showing another embodiment of the present invention.
【図６】従来の鞍型コイルの円弧部付近を示す斜視図で
ある。FIG. 6 is a perspective view showing the vicinity of an arc portion of a conventional saddle type coil.
【図７】第６図に使用する絶縁シートの平面図である。FIG. 7 is a plan view of the insulating sheet used in FIG.
１…鞍型コイル、２…導体、３…層間絶縁、４…チュー
ブ型層間絶縁、５…突出部。DESCRIPTION OF SYMBOLS 1 ... Saddle coil, 2 ... conductor, 3 ... interlayer insulation, 4 ... tube type interlayer insulation, 5 ... protrusion part.
Claims (8)
れて配置された柔軟性を有する層間絶縁と、層間絶縁の
側端面が導体積層方向にはみ出して形成された突出部を
備えたコイルであることを特徴とする電気機器コイル。1. A coil having laminated conductors, flexible interlayer insulation placed between the conductors by pressing, and a projecting portion formed by a side end face of the interlayer insulation protruding in the conductor lamination direction. An electric device coil characterized in that
れて配置された柔軟性を有する層間絶縁と、層間絶縁の
側端面が導体積層方向にはみ出して形成された突出部を
備えたコイルであることを特徴とする電気機器コイル。2. A coil having laminated conductors, flexible interlayer insulation arranged by being pressed between these conductors, and a projecting portion formed by a side end face of the interlayer insulation protruding in the conductor lamination direction. An electric device coil characterized in that
プレグレジンを塗布した層間絶縁を導体間に押圧されな
がら複数層積層して、層間絶縁の側端面が導体積層方向
にはみ出した突出部を有するコイルを形成し、このコイ
ルを加熱し、層間絶縁間にワニスにて導体を固着するこ
とを特徴とする電気機器コイルの製造方法。3. A flexible tubular insulating member coated with pre-pre-resin is laminated in a plurality of layers while being pressed between the conductors, and a side end face of the interlayer insulation has a protruding portion protruding in the conductor laminating direction. A method of manufacturing an electric device coil, comprising forming a coil having the same, heating the coil, and fixing a conductor with a varnish between interlayer insulations.
を使用ことを特徴とする請求項１乃至３のいずれか１記
載の電気機器コイルとその製造方法。4. The coil for electric equipment and the method for manufacturing the same according to claim 1, wherein a flexible insulating tape is used for the interlayer insulation.
に絶縁フィルムを挿入したことを特徴とする請求項１乃
至３のいずれか１記載の電気機器コイルとその製造方
法。5. The electric device coil according to any one of claims 1 to 3, wherein the tube-shaped insulating member has an insulating film inserted in the tube, and a method for manufacturing the coil.
ジンを加熱硬化することを特徴とする請求項３記載の電
気機器コイル製造方法。6. The method for manufacturing a coil for electric equipment according to claim 3, wherein electricity is applied to the coil to heat and cure the prepregresin.
レジンを加熱硬化することを特徴とする請求項３記載の
電気機器コイル製造方法。7. The method for producing a coil for electric equipment according to claim 3, wherein the coil is inserted into a temperature-controlled room to heat and cure prepregresin.
た柔軟性を有する層間絶縁とを複数層積層し、層間絶縁
の内周縁側及び外周縁側の一部が導体積層方向にはみ出
した突出部を備えたコイルを有する電気機器。8. A plurality of laminated conductors and a plurality of layers of flexible interlayer insulation pressed between the conductors are laminated, and a part of the inner and outer peripheral edges of the interlayer insulation protrudes in the conductor lamination direction. An electric device having a coil with a protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5055438A JP2979887B2 (en) | 1993-03-16 | 1993-03-16 | Electric device coil, electric device having coil, and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5055438A JP2979887B2 (en) | 1993-03-16 | 1993-03-16 | Electric device coil, electric device having coil, and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06276706A true JPH06276706A (en) | 1994-09-30 |
| JP2979887B2 JP2979887B2 (en) | 1999-11-15 |
Family
ID=12998604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5055438A Expired - Lifetime JP2979887B2 (en) | 1993-03-16 | 1993-03-16 | Electric device coil, electric device having coil, and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2979887B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997030506A1 (en) * | 1996-02-16 | 1997-08-21 | Hitachi, Ltd. | Stator winding of rotating electric machine and its manufacturing method |
| FR2851089A1 (en) * | 2002-12-20 | 2004-08-13 | Valeo Equip Electr Moteur | Pin coil notches insulating method for rotating electric machine e.g. generator, involves using tubular insulating unit as envelope for notch, where tubular unit is put in rectangular shape with four folds without discontinuity |
| JP2014220466A (en) * | 2013-05-10 | 2014-11-20 | 株式会社豊田自動織機 | Coil |
| US8931165B2 (en) | 2011-11-16 | 2015-01-13 | Fujitsu Limited | Method of manufacturing coil device |
| WO2018190124A1 (en) * | 2017-04-13 | 2018-10-18 | パナソニックＩｐマネジメント株式会社 | Coil and motor using same |
-
1993
- 1993-03-16 JP JP5055438A patent/JP2979887B2/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997030506A1 (en) * | 1996-02-16 | 1997-08-21 | Hitachi, Ltd. | Stator winding of rotating electric machine and its manufacturing method |
| FR2851089A1 (en) * | 2002-12-20 | 2004-08-13 | Valeo Equip Electr Moteur | Pin coil notches insulating method for rotating electric machine e.g. generator, involves using tubular insulating unit as envelope for notch, where tubular unit is put in rectangular shape with four folds without discontinuity |
| US8931165B2 (en) | 2011-11-16 | 2015-01-13 | Fujitsu Limited | Method of manufacturing coil device |
| JP2014220466A (en) * | 2013-05-10 | 2014-11-20 | 株式会社豊田自動織機 | Coil |
| WO2018190124A1 (en) * | 2017-04-13 | 2018-10-18 | パナソニックＩｐマネジメント株式会社 | Coil and motor using same |
| CN110521089A (en) * | 2017-04-13 | 2019-11-29 | 松下知识产权经营株式会社 | Coil and the motor for using the coil |
| JPWO2018190124A1 (en) * | 2017-04-13 | 2020-02-27 | パナソニックＩｐマネジメント株式会社 | Coil and motor using the same |
| EP3611827A4 (en) * | 2017-04-13 | 2020-05-06 | Panasonic Intellectual Property Management Co., Ltd. | Coil and motor using same |
| US11489387B2 (en) | 2017-04-13 | 2022-11-01 | Panasonic Intellectual Property Management Co., Ltd. | Coil and motor using same |
| CN110521089B (en) * | 2017-04-13 | 2022-11-01 | 松下知识产权经营株式会社 | Coil and motor using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2979887B2 (en) | 1999-11-15 |
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