JP2012034453A5

JP2012034453A5 -

Info

Publication number: JP2012034453A5
Application number: JP2010170028A
Authority: JP
Filing date: 2010-07-29
Publication date: 2012-10-25
Anticipated expiration: 2030-07-29

Description

（１）請求項１の発明による絶縁紙は、固定子と回転子を有するセグメント型回転電機のコイルエンドにおける相間絶縁、コイル導体間絶縁のためにコイル導体間に環状に配設して使用される絶縁紙において、環状に配設される絶縁紙の少なくとも一方の面に浮き上がり防止突起を備えることを特徴とする。
（２）請求項５の発明によるセグメント型回転電機は、内周に複数のスロットが設けられた固定子鉄心と、前記スロットに挿入され、かつ前記固定子鉄心の端面から突出するセグメント導体を接続して形成されたコイル巻線であって、前記固定子鉄心の端面から突出したコイルエンドにおいて前記セグメント導体が屈曲されたコイル巻線と、コイルエンドにおける相間絶縁、コイル導体間絶縁のためにコイル導体間に環状に配設して使用され、少なくとも一方の面に浮き上がり防止突起を有する絶縁紙とを備えることを特徴とする。
（３）請求項７の発明による回転電機は、複数のスロットを有する固定子鉄心、および一つのスロット内に少なくもＮ本のコイル導体が径方向に並んで挿通されて固定子鉄心に捲回される固定子巻線を有する固定子と、前記固定子に対して回転する回転子とを備え、前記複数のスロット内のＮ本のコイル導体のそれぞれは、前記固定子鉄心の周方向に環状に並列されて第１〜第Ｎの環状列を構成し、前記第１〜第Ｎの環状列を構成するコイル導体が突出する少なくとも一方のコイルエンドにおいて、少なくともいずれか一対の環状列の間に、絶縁材料で製作された絶縁紙が介在し、前記絶縁紙の少なくとも一方の面に浮き上がり防止突起が設けられていることを特徴とする。
（４）請求項９の発明は、請求項８に記載の回転電機を製造する方法において、前記コイル導体は略Ｕ字形状のセグメント導体であり、前記セグメント導体を、一方のコイルエンド側から前記スロットを貫通して他方のコイルエンドに突出させる第１工程と、前記絶縁紙を前記セグメント導体の環状列の間に配設する第２工程と、前記他方のコイルエンドに突出するセグメント導体の端部を折れ曲げる第３工程と、前記セグメント導体の折れ曲がった端部同士を溶接する第４工程とを備えることを特徴とする。 (1) The insulating paper according to the first aspect of the present invention is used in an annular arrangement between coil conductors for inter-phase insulation and inter-coil conductor insulation at a coil end of a segment type rotating electrical machine having a stator and a rotor. The insulating paper is characterized in that it includes a protrusion for preventing lifting on at least one surface of the insulating paper arranged in a ring shape.
(2) A segment type rotating electrical machine according to the invention of claim 5 connects a stator core having a plurality of slots provided on an inner periphery thereof and a segment conductor inserted into the slot and protruding from an end surface of the stator core. A coil winding in which the segment conductor is bent at a coil end protruding from the end face of the stator core, and a coil for interphase insulation and coil conductor insulation at the coil end. It is used by being arranged in an annular shape between conductors, and provided with an insulating paper having an anti-lifting protrusion on at least one surface.
(3) A rotating electrical machine according to a seventh aspect of the present invention includes a stator core having a plurality of slots, and at least N coil conductors arranged in a radial direction in one slot and wound around the stator core. Each of the N coil conductors in the plurality of slots is annular in the circumferential direction of the stator core. Are arranged in parallel to each other to form first to N-th annular rows, and at least one coil end from which the coil conductors constituting the first to N-th annular rows protrude, between at least one pair of annular rows Insulating paper made of an insulating material is interposed, and at least one surface of the insulating paper is provided with a lifting prevention protrusion.
(4) The invention of claim 9 is the method of manufacturing the rotating electrical machine according to claim 8 , wherein the coil conductor is a substantially U-shaped segment conductor, and the segment conductor is moved from one coil end side to the coil conductor. A first step of penetrating the slot and projecting to the other coil end; a second step of disposing the insulating paper between the annular rows of segment conductors; and an end of the segment conductor projecting to the other coil end A third step of bending the portion, and a fourth step of welding the bent ends of the segment conductors.

Claims

Insulating paper used in an annular arrangement between coil conductors for interphase insulation at coil ends of segment-type rotating electrical machines having a stator and rotor, and insulation between coil conductors,
An insulating paper comprising an anti-lifting protrusion on at least one surface of the annular insulating paper.

Insulating paper according to claim 1 ,
Insulating paper, wherein the protrusions are provided at predetermined intervals so as to be arranged in a plurality in the circumferential direction of the stator.

In the insulating paper according to claim 1 or 2 ,
Insulating paper, wherein the protrusions are formed by plastic working.

In the insulating paper according to any one of claims 1 to 3 ,
2. The insulating paper according to claim 1, wherein the protrusion has a triangular pyramid shape or a hemispherical shape .

A stator core provided with a plurality of slots on the inner periphery;
A coil winding inserted into the slot and formed in contact with a segment conductor protruding from the end face of the stator core, wherein the segment conductor is bent at a coil end protruding from the end face of the stator core. Coil windings,
A segment type rotating electrical machine comprising the insulating paper according to any one of claims 1 to 4 .

In the rotating electrical machine according to claim 5 ,
The insulating paper is inserted over the entire circumference in the gap between the segment conductors at the coil end,
The segment-type rotating electrical machine, wherein the lifting prevention protrusion is pressed toward the end face of the stator core by engaging with a bent portion of the segment conductor.

A stator core having a plurality of slots, and a stator having a stator winding in which at least N coil conductors are inserted in a radial direction in a single slot and wound around the stator core;
A rotor that rotates relative to the stator,
Each of the N coil conductors in the plurality of slots is arranged in a ring in the circumferential direction of the stator core to form first to Nth annular rows,
In at least one of the coil ends from which the coil conductors constituting the first to N-th annular rows protrude, an insulating paper made of an insulating material is interposed between at least one pair of the annular rows, and the insulating paper A rotating electrical machine, wherein at least one surface is provided with a lifting prevention protrusion.

The rotating electrical machine according to claim 7 ,
When N is 4,
The plurality of coil conductors on the outermost diameter side in the plurality of slots are arranged in a ring in the circumferential direction of the stator core to form a first annular row,
The second plurality of coil conductors from the outer diameter side in the plurality of slots are arranged in parallel in the circumferential direction of the stator core to form a second annular row,
The third plurality of coil conductors from the outer diameter side in the plurality of slots are arranged in parallel in the circumferential direction of the stator core to form a third annular row,
The fourth plurality of coil conductors from the outer diameter side in the plurality of slots are arranged in parallel in the circumferential direction of the stator core to form a fourth annular row,
The insulating paper is disposed between the first and second annular rows, between the second and third annular rows, and between the third and fourth annular rows, respectively. A rotating electric machine that is characterized.

A method of manufacturing a rotary electric machine according to claim 8,
The coil conductor is a substantially U-shaped segment conductor,
A first step of projecting the segment conductor from one coil end side to the other coil end through the slot;
A second step of disposing the insulating paper between the annular rows of the segment conductors;
A third step of bending the end portion of the segment conductor protruding to the other coil end;
And a fourth step of welding the bent ends of the segment conductors.