JP2021141684A - Insulation member and stator - Google Patents

Insulation member and stator Download PDF

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JP2021141684A
JP2021141684A JP2020036872A JP2020036872A JP2021141684A JP 2021141684 A JP2021141684 A JP 2021141684A JP 2020036872 A JP2020036872 A JP 2020036872A JP 2020036872 A JP2020036872 A JP 2020036872A JP 2021141684 A JP2021141684 A JP 2021141684A
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insulating member
winding
stator
windings
insulation member
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JP7410753B2 (en
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貴博 田中
Takahiro Tanaka
貴博 田中
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Toshiba Industrial Products and Systems Corp
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  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

To provide an insulation member of a coil winding which reduces partial discharge between different phases in a rising part of the winding coil and has improved efficiency of attachment, and a stator of a dynamo-electric motor using the insulation member.SOLUTION: An insulation member comprises: an elongate tape-shaped base portion having a longitudinal direction in a first direction; and a plurality of convex portions arranged at equal intervals in the first direction and projecting in the same direction as a direction perpendicular to a first direction S. A stator comprises: a stator iron core having a plurality of slots on a plurality of windings are wound; a rising portion in which each winding wound on each slot is folded at an end of each stator iron core; and the insulation member. The insulation member is mounted in the rising part so as to be contacted from an outer peripheral side of each winding, and each convex part is fitted between ones of the windings having different phases.SELECTED DRAWING: Figure 2

Description

本発明の実施形態は、巻線の絶縁部材、及び、これを使用した電動機の固定子に関する。 An embodiment of the present invention relates to an insulating member of a winding and a stator of an electric motor using the same.

インバータ駆動用電動機において、固定子のコイルエンドのコイル巻線の立ち上がり位置にサージ電圧が印加されると、異相コイル巻線間で部分放電が発生する場合がある。このため、コイル巻線の異相間に相関紙を挿入することに加えて、コイルエンドの立ち上がり部に絶縁テープを巻き付けることで絶縁性を向上させている。 In an inverter drive motor, when a surge voltage is applied to the rising position of the coil winding at the coil end of the stator, partial discharge may occur between the out-of-phase coil windings. Therefore, in addition to inserting the correlation paper between the different phases of the coil winding, the insulating property is improved by wrapping the insulating tape around the rising portion of the coil end.

特開２０１３−２０７８２０号公報Japanese Unexamined Patent Publication No. 2013-207820

しかし、各相に絶縁テープの巻き付けを行う必要があり、また、絶縁補強が必要な箇所が多いため、作業効率が悪化している。 However, since it is necessary to wrap an insulating tape around each phase and there are many places where insulating reinforcement is required, the work efficiency is deteriorated.

本発明は、上記課題に鑑みてなされたものであり、その目的は、インバータ駆動用の電動機において、コイル巻線の立ち上がり部における異相間の部分放電を抑制し、取付け作業効率が向上されたコイル巻線の絶縁部材、及びこれを使用した電動機の固定子を提供することである。 The present invention has been made in view of the above problems, and an object of the present invention is to suppress partial discharge between different phases at the rising portion of a coil winding in an inverter drive motor, and to improve the mounting work efficiency. The purpose of the present invention is to provide an insulating member for windings and a stator for an electric motor using the same.

本実施形態の一態様によれば、絶縁部材は、第１方向に長手方向を有する細長いテープ状の基部と、第１方向に等間隔で配置され、第１方向Ｓに対して直角方向であって同一方向に突出する複数の凸部と、を備える。固定子は、複数の巻線が巻回される複数のスロットを備える固定子鉄心と、前記スロットに巻回される前記巻線が前記固定子鉄心の端部で折り返される立ち上り部と、前記絶縁部材と、を備え、前記絶縁部材は、前記立ち上り部において、前記巻線の外周側から当接して装着され、前記凸部は異相の前記巻線の間に嵌め込まれる。 According to one aspect of the present embodiment, the insulating member is arranged at equal intervals in the first direction with an elongated tape-shaped base having a longitudinal direction in the first direction, and is in a direction perpendicular to the first direction S. It is provided with a plurality of convex portions projecting in the same direction. The stator includes a stator core having a plurality of slots in which a plurality of windings are wound, a rising portion in which the winding wound in the slot is folded back at an end portion of the stator core, and the insulation. The insulating member includes a member, and the insulating member is abutted and mounted from the outer peripheral side of the winding at the rising portion, and the convex portion is fitted between the windings of different phases.

実施形態に係る絶縁部材の概略構成を示す斜視図A perspective view showing a schematic configuration of an insulating member according to an embodiment. 実施形態に係る固定子の概略構成を示す斜視図A perspective view showing a schematic configuration of a stator according to an embodiment. 実施形態に係る固定子の概略構成を示す上面図Top view showing a schematic configuration of a stator according to an embodiment 実施形態に係る固定子の概略構成を示す側面図Side view which shows the schematic structure of the stator which concerns on embodiment 実施形態に係る固定子の概略構成を示す図であり、図３の領域Ａを拡大して示す一部拡大上面図It is a figure which shows the schematic structure of the stator which concerns on embodiment, and is the partially enlarged top view which shows the area A of FIG. 3 enlarged.

以下、実施形態に係る絶縁部材５及びこれを用いた固定子１００について、図１から図５を参照して説明する。以下の説明において、同様の部位には同様の符号を付し、説明は省略する。 Hereinafter, the insulating member 5 according to the embodiment and the stator 100 using the insulating member 5 will be described with reference to FIGS. 1 to 5. In the following description, similar parts will be designated by the same reference numerals, and the description thereof will be omitted.

図１は、絶縁部材５の概略構成を示す斜視図である。絶縁部材５は第１方向Ｓに長手方向を有する細長いテープ状の基部５ａに、第１方向Ｓに等間隔で配置され、第１方向Ｓに対して直角方向であって同一方向に突出する複数の凸部５ｂを備えている。凸部５ｂの先端には係止部５ｃが備えられている。凸部５ｂの長さは、図１に示す様にＬ１であり、凸部５ｂの第１方向Ｓの幅はＷである。この場合、第１方向は、後述するように、絶縁部材５が固定子鉄心１の巻線３の間に装着された際の周方向Ｒに相当する。 FIG. 1 is a perspective view showing a schematic configuration of the insulating member 5. A plurality of insulating members 5 are arranged at equal intervals in the first direction S on an elongated tape-shaped base portion 5a having a longitudinal direction in the first direction S, and project in the same direction at right angles to the first direction S. The convex portion 5b of the above is provided. A locking portion 5c is provided at the tip of the convex portion 5b. The length of the convex portion 5b is L1 as shown in FIG. 1, and the width of the convex portion 5b in the first direction S is W. In this case, the first direction corresponds to the circumferential direction R when the insulating member 5 is mounted between the windings 3 of the stator core 1, as will be described later.

絶縁部材５は絶縁性及び弾性を備える樹脂により構成されている。絶縁部材５は、例えばエチレン・プロピレンゴムにより構成されている。絶縁部材５は弾性を備えており、付勢力をもって屈曲させることができる。後述するように、絶縁部材５は固定子鉄心１の巻線３の間に凸部５ｂを挿入させるとともに、基部５ａを巻線３が配置される円周に沿うようにして屈曲させて固定子鉄心１に装着される。 The insulating member 5 is made of a resin having insulating properties and elasticity. The insulating member 5 is made of, for example, ethylene / propylene rubber. The insulating member 5 has elasticity and can be bent by an urging force. As will be described later, in the insulating member 5, the convex portion 5b is inserted between the windings 3 of the stator core 1, and the base portion 5a is bent along the circumference on which the windings 3 are arranged to form a stator. It is attached to the iron core 1.

絶縁部材５の凸部５ｂの先端部には、係止部５ｃが設けられている。係止部５ｃは、凸部５ｂの先端部分に配置され、第１方向Ｓに突出するように設けられている。絶縁部材５が固定子鉄心１に装着され、凸部５ｂが巻線３の間に嵌め込まれた場合に、係止部５ｃは周方向Ｒに突出し、巻線３に係止されることにより、巻線３から抜け落ちることを抑制する。 A locking portion 5c is provided at the tip of the convex portion 5b of the insulating member 5. The locking portion 5c is arranged at the tip end portion of the convex portion 5b and is provided so as to project in the first direction S. When the insulating member 5 is attached to the stator core 1 and the convex portion 5b is fitted between the windings 3, the locking portion 5c protrudes in the circumferential direction R and is locked to the winding 3. Suppresses falling out of winding 3.

図２、図３、及び図４に示す様に、実施形態に係る固定子１００は固定子鉄心１を備えている。固定子鉄心１は、内部中空の円筒形状をなし、内側に図示しない回転子が配置される空間が形成されている。固定子鉄心１は、電磁鋼板により形成された鉄心材を多数枚積層して構成されている。個々の鉄心材は、平板円環形状を呈しており、これを積層することで固定子鉄心１を構成している。 As shown in FIGS. 2, 3 and 4, the stator 100 according to the embodiment includes the stator core 1. The stator core 1 has a hollow cylindrical shape inside, and a space in which a rotor (not shown) is arranged is formed inside. The stator core 1 is formed by laminating a large number of iron core materials formed of electrical steel sheets. Each of the iron core materials has a flat plate ring shape, and the stator core 1 is formed by laminating them.

固定子鉄心１の内側内周部には、巻線３を収容するための複数のスロット２が回転軸方向に延伸して設けられており、複数のスロット２が周方向Ｒに等間隔に隣接して配置されている。固定子鉄心１は、図示しない電動機を収容するフレーム内に固定されて用いられる。スロット２には巻線３が幾重にも巻回されている。巻線３は、固定子鉄心１の上端部に位置する巻線３の立ち上り部４で折り返されることにより巻回されている。巻線３は、周囲が樹脂などの絶縁物でコーティングされた複数の導電線により構成されている。 A plurality of slots 2 for accommodating the windings 3 are provided extending in the rotation axis direction on the inner inner peripheral portion of the stator core 1, and the plurality of slots 2 are adjacent to each other at equal intervals in the circumferential direction R. It is arranged. The stator core 1 is used by being fixed in a frame accommodating an electric motor (not shown). The winding 3 is wound in the slot 2 in multiple layers. The winding 3 is wound by being folded back at a rising portion 4 of the winding 3 located at the upper end of the stator core 1. The winding 3 is composed of a plurality of conductive wires whose periphery is coated with an insulating material such as resin.

図２、図３、図４に示す様に、絶縁部材５は、固定子鉄心１の巻線３の立ち上り部４において、固定子鉄心１に接するようにして設けられている。絶縁部材５の基部５ａは、立ち上がり部４において、周方向Ｒの円周に沿って配置される巻線３の外周側から、巻線３の配置に沿って当接されている。絶縁部材５の凸部５ｂは、異相の巻線３の間に挿入されている。この場合、絶縁部材５は、巻線３の外周を取り巻くように複数の絶縁部材５を組み合わせて用いてもよい。巻線３の外周を取り巻くのに十分な長さを備えた絶縁部材５であれば、単一の絶縁部材５を用いてもよい。また、立ち上がり部４に装着された絶縁部材５の外周を図示しない締結具によって巻回することにより緊縛固定してもよい。 As shown in FIGS. 2, 3 and 4, the insulating member 5 is provided so as to be in contact with the stator core 1 at the rising portion 4 of the winding 3 of the stator core 1. The base portion 5a of the insulating member 5 is in contact with the rising portion 4 from the outer peripheral side of the winding 3 arranged along the circumference in the circumferential direction R along the arrangement of the winding 3. The convex portion 5b of the insulating member 5 is inserted between the windings 3 having different phases. In this case, the insulating member 5 may be used in combination with a plurality of insulating members 5 so as to surround the outer circumference of the winding 3. A single insulating member 5 may be used as long as the insulating member 5 has a sufficient length to surround the outer circumference of the winding 3. Further, the outer circumference of the insulating member 5 mounted on the rising portion 4 may be tightly fixed by winding it with a fastener (not shown).

また、例えば、固定子１００によって構成されるインバータ駆動用電動機が、三相交流駆動方式の電動機である場合、図２、及び図３に示す様に、凸部５ｂは、Ｕ相、Ｖ相、及びＷ相の巻線３の間、つまり異相の巻線３の間に挿入されて嵌め込まれている。これにより、異相の巻線３の間の絶縁性を向上させることができるため、異相の巻線３間の放電を抑制することができる。 Further, for example, when the inverter drive motor composed of the stator 100 is a three-phase AC drive type motor, the convex portions 5b are U-phase, V-phase, as shown in FIGS. 2 and 3. It is inserted and fitted between the W-phase windings 3 and the W-phase windings 3, that is, between the different-phase windings 3. As a result, the insulating property between the windings 3 of different phases can be improved, so that the discharge between the windings 3 of different phases can be suppressed.

また、絶縁部材５は巻線３の配置に沿って円周に沿うように屈曲されている。ここで、絶縁部材５は樹脂で構成されているため、弾性力により巻線３が直線形状に回復しようとするテンションが巻線３に作用する。これにより、絶縁部材５の凸部５ｂが巻線３に付勢されるため、絶縁部材５と巻線３との間の摩擦力が大きくなる。このため、絶縁部材５が巻線３から抜け落ちることが抑制される。 Further, the insulating member 5 is bent along the circumference along the arrangement of the winding 3. Here, since the insulating member 5 is made of resin, tension that causes the winding 3 to recover to a linear shape acts on the winding 3 due to elastic force. As a result, the convex portion 5b of the insulating member 5 is urged to the winding 3, so that the frictional force between the insulating member 5 and the winding 3 increases. Therefore, it is possible to prevent the insulating member 5 from falling out of the winding 3.

また、この場合、図５に示す様に、凸部５ｂの長さＬ１は、スロット２の内径方向の長さＬ２と同等か、又は、スロット２の内外径方向の長さＬ２よりも少し長い程度に構成されており、凸部５ｂの先端が図示しないロータに接触しないように構成されている。凸部５ｂを極力長く構成することで、凸部５ｂを挟持する巻線３との摩擦力で絶縁部材５が巻線３から抜け落ちることが抑制される。 Further, in this case, as shown in FIG. 5, the length L1 of the convex portion 5b is equal to the length L2 in the inner diameter direction of the slot 2, or slightly longer than the length L2 in the inner and outer diameter directions of the slot 2. It is configured so that the tip of the convex portion 5b does not come into contact with a rotor (not shown). By making the convex portion 5b as long as possible, it is possible to prevent the insulating member 5 from falling out of the winding 3 due to the frictional force with the winding 3 sandwiching the convex portion 5b.

また、凸部５ｂの第１方向Ｓの幅はＷである。幅Ｗは、絶縁部材５の凸部５ｂが嵌め込まれる巻線３の間隔よりもやや大きく設定されている。絶縁部材５は弾性を備えた樹脂により構成されているため、凸部５ｂが巻線３間に嵌め込まれた際に、弾性力により巻線３を付勢することにより摩擦力が大きくなり、これにより強く巻線３間に保持される。これにより、絶縁部材５が巻線３から抜け落ちることが抑制される。 Further, the width of the convex portion 5b in the first direction S is W. The width W is set to be slightly larger than the distance between the windings 3 into which the convex portion 5b of the insulating member 5 is fitted. Since the insulating member 5 is made of elastic resin, when the convex portion 5b is fitted between the windings 3, the frictional force is increased by urging the windings 3 by the elastic force. It is more strongly held between the windings 3. As a result, the insulating member 5 is prevented from falling out of the winding 3.

実施形態に係る絶縁部材５、及びこれを装着された固定子１００によれば以下の効果を得る。 According to the insulating member 5 according to the embodiment and the stator 100 to which the insulating member 5 is attached, the following effects are obtained.

実施形態に係る絶縁部材５は、第１方向Ｓに長手方向を有する細長いテープ状の基部５ａに、第１方向Ｓに等間隔で配置され、第１方向Ｓに対して直角方向であって同一方向に突出する複数の凸部５ｂを備えている。凸部５ｂの先端には係止部５ｃが備えられている。係止部５ｃは、凸部５ｂの先端部に配置され、第１方向Ｓに突出するように設けられている。絶縁部材５が固定子鉄心１に装着され、凸部５ｂが巻線３の間に嵌め込まれた場合に、係止部５ｃが周方向Ｒに突出するように設けられて巻線３に係止されることにより、巻線３から抜け落ちることを抑制することができる。 The insulating member 5 according to the embodiment is arranged at equal intervals in the first direction S on an elongated tape-shaped base portion 5a having a longitudinal direction in the first direction S, and is the same in a direction perpendicular to the first direction S. It is provided with a plurality of convex portions 5b protruding in the direction. A locking portion 5c is provided at the tip of the convex portion 5b. The locking portion 5c is arranged at the tip end portion of the convex portion 5b and is provided so as to project in the first direction S. When the insulating member 5 is mounted on the stator core 1 and the convex portion 5b is fitted between the windings 3, the locking portion 5c is provided so as to project in the circumferential direction R and locks on the winding 3. By doing so, it is possible to prevent the winding 3 from falling out.

絶縁部材５は巻線３の配置に沿って円周に沿うように屈曲されている。絶縁部材５は樹脂で構成されているため、弾性力により巻線３が直線形状に回復しようとするテンションが作用する。これにより、絶縁部材５の凸部５ｂが巻線３に付勢されるため、これによっても、絶縁部材５が巻線３から抜け落ちることが抑制される。 The insulating member 5 is bent along the circumference along the arrangement of the winding 3. Since the insulating member 5 is made of resin, an elastic force exerts a tension on the winding 3 to restore it to a linear shape. As a result, the convex portion 5b of the insulating member 5 is urged to the winding 3, so that the insulating member 5 is also prevented from falling out of the winding 3.

また、絶縁部材５の凸部５ｂの長さＬ１は、スロット２の内径方向の長さＬ２と同等か、又は、スロット２の内径方向の長さＬ２よりも少し長い程度に構成されており、スロット２よりも内径側に出ないように構成されている。凸部５ｂを極力長く構成することで、凸部５ｂを挟持する巻線３との摩擦力で絶縁部材５が巻線３から抜け落ちることが抑制される。 Further, the length L1 of the convex portion 5b of the insulating member 5 is configured to be equal to the length L2 in the inner diameter direction of the slot 2 or slightly longer than the length L2 in the inner diameter direction of the slot 2. It is configured so that it does not come out on the inner diameter side of the slot 2. By making the convex portion 5b as long as possible, it is possible to prevent the insulating member 5 from falling out of the winding 3 due to the frictional force with the winding 3 sandwiching the convex portion 5b.

また、凸部５ｂの幅Ｗは、絶縁部材５の凸部５ｂが嵌め込まれる巻線３の間隔よりもやや大きく設定されている。これにより、巻線３との摩擦力が大きくなり、絶縁部材５が巻線３から抜け落ちることが抑制される。 Further, the width W of the convex portion 5b is set to be slightly larger than the distance between the windings 3 into which the convex portion 5b of the insulating member 5 is fitted. As a result, the frictional force with the winding 3 increases, and the insulating member 5 is prevented from falling out of the winding 3.

従って、固定子鉄心１の立ち上り部４において、巻線３から抜け落ちにくい絶縁部材５、及びこれを使用した固定子１００を提供することができる。 Therefore, at the rising portion 4 of the stator core 1, it is possible to provide an insulating member 5 that does not easily come off from the winding 3, and a stator 100 that uses the insulating member 5.

また、絶縁部材５は絶縁性に優れた樹脂により構成されている。従って、絶縁部材５が固定子鉄心１に装着された場合に、異相の巻線３間に配置された凸部５ｂにより、立ち上り部４における異相の巻線３の間の絶縁性が向上されるため、異相の巻線３の間の部分放電を抑制することができる。また、絶縁部材５は、樹脂により一体成形された部材であるため、これを固定子鉄心１に取り付ける際に煩雑な作業を必要とせず、簡単に装着が可能である。従って、取付け作業効率が向上された絶縁部材５、及びこれを使用した固定子１００を提供することができる。 Further, the insulating member 5 is made of a resin having excellent insulating properties. Therefore, when the insulating member 5 is mounted on the stator core 1, the convex portion 5b arranged between the different-phase windings 3 improves the insulating property between the different-phase windings 3 at the rising portion 4. Therefore, partial discharge between the windings 3 having different phases can be suppressed. Further, since the insulating member 5 is a member integrally molded of resin, it does not require complicated work when it is attached to the stator core 1, and can be easily attached. Therefore, it is possible to provide the insulating member 5 having improved mounting work efficiency and the stator 100 using the insulating member 5.

実施形態に係る固定子１００は、電動機に用いられる固定子でもよいし、発電機に用いられる固定子でもよい。 The stator 100 according to the embodiment may be a stator used in an electric motor or a stator used in a generator.

以上のように、本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 As described above, some embodiments of the present invention have been described, but these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

１…固定子鉄心、２…スロット、３…巻線、４…立ち上り部、５…絶縁部材、５ｂ…凸部、５ｃ…係止部、１００…固定子 1 ... Stator iron core, 2 ... Slot, 3 ... Winding, 4 ... Rising part, 5 ... Insulating member, 5b ... Convex part, 5c ... Locking part, 100 ... Stator

Claims (6)

第１方向に長手方向を有する細長いテープ状の基部と、
第１方向に等間隔で配置され、第１方向Ｓに対して直角方向であって同一方向に突出する複数の凸部と、を備える絶縁部材。 An elongated tape-shaped base having a longitudinal direction in the first direction,
An insulating member that is arranged at equal intervals in the first direction and includes a plurality of convex portions that are perpendicular to the first direction S and project in the same direction. 前記凸部の先端には第１方向に突出する係止部が備えられている請求項１に記載の絶縁部材。 The insulating member according to claim 1, wherein a locking portion protruding in the first direction is provided at the tip of the convex portion. 前記絶縁部材は、絶縁性及び弾性を備える樹脂により構成されている請求項１又は２に記載の絶縁部材。 The insulating member according to claim 1 or 2, wherein the insulating member is made of a resin having insulating properties and elasticity. 前記絶縁部材は、はエチレン・プロピレンゴムにより構成されている請求項１から３の何れか一項に記載の絶縁部材。 The insulating member according to any one of claims 1 to 3, wherein the insulating member is made of ethylene / propylene rubber. 複数の巻線が巻回される複数のスロットを備える固定子鉄心と、
前記スロットに巻回される前記巻線が前記固定子鉄心の端部で折り返される立ち上り部と、
請求項１から４の何れか一項に記載される絶縁部材と、を備え、
前記絶縁部材は、前記立ち上り部において、前記巻線の外周側から当接して装着され、前記凸部は異相の前記巻線の間に嵌め込まれる固定子。 A stator core with multiple slots around which multiple windings are wound, and
A rising portion in which the winding wound in the slot is folded back at the end of the stator core, and a rising portion.
The insulating member according to any one of claims 1 to 4 is provided.
The insulating member is attached so as to abut from the outer peripheral side of the winding at the rising portion, and the convex portion is fitted between the windings having different phases. 前記巻線は周囲が絶縁物でコーティングされた複数の導電線により構成されている請求項５に記載の固定子。 The stator according to claim 5, wherein the winding is composed of a plurality of conductive wires whose periphery is coated with an insulating material.
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Citations (6)

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Publication number Priority date Publication date Assignee Title
JPS5788846A (en) * 1980-11-25 1982-06-02 Toshiba Corp Rotary electric machine
JPS6073342U (en) * 1983-10-26 1985-05-23 株式会社東芝 Induction motor winding protection device
JP2003047188A (en) * 2001-07-27 2003-02-14 Aichi Elec Co Stator for electric motor
JP2007312563A (en) * 2006-05-22 2007-11-29 Toyota Motor Corp Interphase insulating member for concentrated winding motor
JP2009005464A (en) * 2007-06-20 2009-01-08 Toyota Motor Corp Inter-phase and intra-phase insulating paper of multiphase distributed winding rotating electric machine, three-phase distributed winding rotating electric machine including inter-phase and intra-phase insulating paper, and manufacturing method of three-phase distributed winding rotating electric machine having inter-phase and intra-phase insulating paper
US20120117790A1 (en) * 2009-06-29 2012-05-17 Tm4 Inc Insertion System and Method to Insert Insulators and Coils in the Slots of the Stator of an Electric Machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5788846A (en) * 1980-11-25 1982-06-02 Toshiba Corp Rotary electric machine
JPS6073342U (en) * 1983-10-26 1985-05-23 株式会社東芝 Induction motor winding protection device
JP2003047188A (en) * 2001-07-27 2003-02-14 Aichi Elec Co Stator for electric motor
JP2007312563A (en) * 2006-05-22 2007-11-29 Toyota Motor Corp Interphase insulating member for concentrated winding motor
JP2009005464A (en) * 2007-06-20 2009-01-08 Toyota Motor Corp Inter-phase and intra-phase insulating paper of multiphase distributed winding rotating electric machine, three-phase distributed winding rotating electric machine including inter-phase and intra-phase insulating paper, and manufacturing method of three-phase distributed winding rotating electric machine having inter-phase and intra-phase insulating paper
US20120117790A1 (en) * 2009-06-29 2012-05-17 Tm4 Inc Insertion System and Method to Insert Insulators and Coils in the Slots of the Stator of an Electric Machine

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