JPS62171427A - Stator for rotary electric machine - Google Patents

Stator for rotary electric machine

Info

Publication number
JPS62171427A
JPS62171427A JP1019286A JP1019286A JPS62171427A JP S62171427 A JPS62171427 A JP S62171427A JP 1019286 A JP1019286 A JP 1019286A JP 1019286 A JP1019286 A JP 1019286A JP S62171427 A JPS62171427 A JP S62171427A
Authority
JP
Japan
Prior art keywords
stator
coil
slot
core
liner
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
JP1019286A
Other languages
Japanese (ja)
Inventor
Toshiaki Hagiwara
利明 萩原
Itsuo Numakunai
沼宮内 五雄
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1019286A priority Critical patent/JPS62171427A/en
Publication of JPS62171427A publication Critical patent/JPS62171427A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To reduce the abrasion of the coil insulating layer of a stator coil due to thermal expansion or contraction, by forming slot liners with the two layers of a coil side slot liner on the stator coil side and a core side slot liner on the stator core side. CONSTITUTION:A stator is provided with a stator core 1, a stator coil 2 inserted into the slot of the stator core 1, slot liners 3a inserted between the stator core 1 and the stator coil 2, and the like. The slot liners 3a are formed with the two layers of a coil side slot linear 3a1 on the stator coil 2 side and a core side slot liner 3a2 on the stator core 1 side. Slots 9 are arranged on the wall surface of the coil side slot liner 3a1, and the wall surface is treated with lubricant 10. As a result, the abrasion of the coil insulating layer of the stator coil due to thermal expansion or contraction is reduced.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明の回転電機の固定子に関するものである。[Detailed description of the invention] [Field of application of the invention] The present invention relates to a stator for a rotating electric machine.

〔発明の背景〕[Background of the invention]

第4図には回転電機の固定子の従来例が示されている。 FIG. 4 shows a conventional example of a stator for a rotating electric machine.

同図に示されているように固定子は固定子鉄心1、この
固定子鉄心1のスロット内に挿入された固定子コイル2
、これら固定子鉄心1と固定子コイル2との間に挿入さ
れたスロットライナー3等を備えている。なお同図にお
いて4はスロット底用ライナー、5は層間ライナー、6
はウェッジ下用amライナー、7はウェッジ、8はコイ
ル絶縁層である。
As shown in the figure, the stator includes a stator core 1 and a stator coil 2 inserted into the slot of this stator core 1.
, a slot liner 3 inserted between the stator core 1 and the stator coil 2 is provided. In the figure, 4 is a slot bottom liner, 5 is an interlayer liner, and 6 is a slot bottom liner.
7 is an am liner under the wedge, 7 is a wedge, and 8 is a coil insulating layer.

このように構成された回転電機の固定子で固定子鉄心1
のスロット内の固定子コイル2は、運転中の電磁力等の
強制力や運転による温度上昇によってスロット内あるい
はスロット外にも伸びる熱伸縮を生じて、その固定子コ
イル2の固定押圧力が低下する。また、固定子コイル2
の熱伸縮による外被Mm層とスロット壁あるいはスロッ
ト内介在ItA縁層との摩擦により、コイル絶縁層8を
摩耗する。
In the stator of a rotating electric machine configured in this way, the stator core 1
The stator coil 2 in the slot undergoes thermal expansion and contraction that extends inside or outside the slot due to forced forces such as electromagnetic force during operation or temperature rise due to operation, and the fixing pressing force of the stator coil 2 decreases. do. Also, stator coil 2
The coil insulating layer 8 is worn out due to friction between the outer covering Mm layer and the slot wall or the ItA edge layer interposed in the slot due to thermal expansion and contraction.

ところで、従来の固定子コイル2を包囲するスロットラ
イナー3はスロット面との接触を高め、接触不良による
グロー放電を防止し、スロット内に固定子コイル2を確
実に押圧固定するもので固定子コイル2の熱伸縮に対し
ては無能で、固定子コイル2の長手方向の熱伸縮に対し
てコイル絶縁層8の保護が不備であった。
By the way, the conventional slot liner 3 that surrounds the stator coil 2 enhances the contact with the slot surface, prevents glow discharge due to poor contact, and reliably presses and fixes the stator coil 2 within the slot. 2, and the protection of the coil insulating layer 8 against thermal expansion and contraction in the longitudinal direction of the stator coil 2 was inadequate.

〔発明の目的〕[Purpose of the invention]

本発明は以上の点に鑑みなされたものであり、熱伸縮に
よる固定子コイルのコイル絶縁層の摩耗低減を可能とし
た回転電機の固定子を提供することを目的とするもので
ある。
The present invention has been made in view of the above points, and it is an object of the present invention to provide a stator for a rotating electric machine in which wear of a coil insulating layer of a stator coil due to thermal expansion and contraction can be reduced.

〔発明の概要〕[Summary of the invention]

すなわち本発明は固定子鉄心と、この固定子鉄心のスロ
ット内に挿入された固定子コイルと、これら固定子コイ
ルと固定子鉄心との間に挿入されたスロットライナーと
を備えた回転電機の固定子において、前記スロットライ
ナーを、前記固定子コイル側のコイル側スロットライナ
ーと、前記固定子鉄心側の鉄心側スロットライナーとの
2層で形成すると共に、前記コイル側スロットライナー
を、その壁面に孔を設け、かつ潤滑材で処理したことを
特徴とするものであり、これによってスロットライナー
は熱伸縮時の固定子コイルを円滑に摺動させるようにな
る。
That is, the present invention provides a method for fixing a rotating electrical machine that includes a stator core, a stator coil inserted into a slot in the stator core, and a slot liner inserted between these stator coils and the stator core. In the child, the slot liner is formed of two layers: a coil-side slot liner on the stator coil side and a core-side slot liner on the stator core side, and the coil-side slot liner has holes in its wall surface. The slot liner is characterized by being provided with a lubricant and being treated with a lubricant, so that the slot liner smoothly slides on the stator coil during thermal expansion and contraction.

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

以下1図示した実施例に基づいて本発明を説明する。第
1図から第3図には本発明の一実施例が示されている。
The present invention will be explained below based on an embodiment shown in one figure. An embodiment of the present invention is shown in FIGS. 1-3.

なお従来と同じ部品には同じ符号を付したので説明を省
略する0本実施例ではスロットライナー3aを、固定子
コイル2側のコイル側スロットライナー3a1と、固定
子鉄心1側の鉄心側スロットライナー3a2との2層で
形成すると共に、コイル側スロットライナー3at を
、その壁面に孔9を設け、かつ潤滑材10で処理した。
Note that the same parts as the conventional ones are given the same reference numerals, so the explanation will be omitted. In this embodiment, the slot liner 3a is divided into a coil-side slot liner 3a1 on the stator coil 2 side and a core-side slot liner on the stator core 1 side. 3a2 and 3a2, the coil side slot liner 3at was provided with holes 9 in its wall surface and treated with a lubricant 10.

このようにすることによりスロットライナー3aは固定
子コイル2側のコイル側スロットライナー3a1と、固
定子鉄心1側の鉄心側スロットライナー3azとの2層
で形成されると共に、コイル側スロットライナー3az
はその壁面に孔9が設けられ、かつ潤滑材1oで処理さ
れるようになって、スロットライナー3aは熱伸縮時の
固定子コイル2を円滑に摺動させるようになり、熱伸縮
により固定子コイル2のコイル絶縁層8の摩耗低減を可
能とした回転電機の固定子を得ることができる。
By doing so, the slot liner 3a is formed of two layers: the coil-side slot liner 3a1 on the stator coil 2 side and the core-side slot liner 3az on the stator core 1 side, and the coil-side slot liner 3az
The slot liner 3a has a hole 9 in its wall and is treated with a lubricant 1o, so that the slot liner 3a can smoothly slide the stator coil 2 during thermal expansion and contraction. It is possible to obtain a stator for a rotating electric machine in which wear of the coil insulating layer 8 of the coil 2 can be reduced.

すなわちコイル側スロットライナー3az  (第2図
参照)には表面に適当な間隔を介し、かつ適当な直径を
持つ孔9を多数設ける。そしてこのスロットライナー3
azの表裏両面には四弗化エチレン、例えば日本パルカ
ー製ユノン−8などを塗布して、孔9部およびその周辺
部にこの潤滑材10を包含させる。鉄心側スロットライ
ナー3al(第3図参照)は従来のものと同じであって
もよい。固定子コイル2はまずコイル側スロットライナ
ー3a1で取り囲み、これを外側から更に鉄心側スロッ
トライナー3azで包囲する。このようにした後に、固
定子鉄心1のスロットにスロット底用ライナー4をセッ
トし、次いでスロットライナー3aを装備した底側の固
定子コイル2をセットし、セット後は層間ライナー5を
置きスロットライナー38を装備した上側の固定子コイ
ル2をセットする。その後は順にウェッジ下用調整ライ
ナー6の調整およびセット、ウェッジ7の打込みを行い
、スロット内作業を完了する。このようにすることによ
りコイル側スロットライナー3a1の孔9部に潤滑材1
0を包含できるので、固定子コイル2の熱伸縮に追従し
て潤滑材10を固定子コイル2の表面および鉄心側スロ
ットライナー3azの表面に供給できるようになり、安
定した固定コイル2の摺動ができ、コイル絶縁層8の摩
耗を低減することができる。すなわちコイル側スロット
ライナー3az と固定子コイル2および鉄心側スロッ
トライナー3a2との滑り作用が向上するようになって
、固定子コイル2の長期的に摺動作用の維持が可能とな
り、スロットライナー3aによる固定子コイル2の長手
方向の熱伸縮に対するコイル絶縁層8の保護をよくする
ことができる。
That is, the coil-side slot liner 3az (see FIG. 2) is provided with a large number of holes 9 on its surface at appropriate intervals and having an appropriate diameter. And this slot liner 3
Tetrafluoroethylene, such as Yunon-8 manufactured by Nippon Palcar Co., Ltd., is applied to both the front and back surfaces of az, and the lubricant 10 is included in the hole 9 and its surrounding area. The core side slot liner 3al (see FIG. 3) may be the same as the conventional one. The stator coil 2 is first surrounded by a coil-side slot liner 3a1, and this is further surrounded from the outside by a core-side slot liner 3az. After doing this, the slot bottom liner 4 is set in the slot of the stator core 1, then the bottom stator coil 2 equipped with the slot liner 3a is set, and after setting, the interlayer liner 5 is placed and the slot liner Set the upper stator coil 2 equipped with 38. Thereafter, the adjustment liner 6 for the lower part of the wedge is adjusted and set, and the wedge 7 is driven in order to complete the work in the slot. By doing this, the lubricant 1 is placed in the hole 9 portion of the coil side slot liner 3a1.
Since the lubricant 10 can be supplied to the surface of the stator coil 2 and the surface of the core side slot liner 3az following the thermal expansion and contraction of the stator coil 2, stable sliding of the fixed coil 2 can be achieved. This makes it possible to reduce wear on the coil insulating layer 8. In other words, the sliding action between the coil-side slot liner 3az and the stator coil 2 and core-side slot liner 3a2 is improved, making it possible to maintain the sliding action of the stator coil 2 over a long period of time. The coil insulating layer 8 can be better protected against thermal expansion and contraction of the stator coil 2 in the longitudinal direction.

なお本実施例では潤滑材10に日本パルカー製ユノン−
8などの乾性潤滑材を使用した場合について説明したが
、乾性潤滑材に半導電性添加材を添加して使用するよう
にしてもよい。このようにすることによりスロット内の
グロー放電の発生を抑制することができる。
In this example, the lubricant 10 is Yunon manufactured by Nippon Palcar.
Although a case has been described in which a dry lubricant such as No. 8 is used, a semiconductive additive may be added to the dry lubricant. By doing so, it is possible to suppress the occurrence of glow discharge within the slot.

〔発明の効果〕〔Effect of the invention〕

上述のように本発明は熱伸縮による固定子コイルのコイ
ル絶縁層の摩耗が低減されるようになって、熱伸縮によ
る固定子コイルのコイル絶縁層の摩耗低減を可能とした
回転電機の固定子を得ることができる。
As described above, the present invention provides a stator for a rotating electric machine in which the wear of the coil insulation layer of the stator coil due to thermal expansion and contraction is reduced, thereby making it possible to reduce the wear of the coil insulation layer of the stator coil due to thermal expansion and contraction. can be obtained.

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

第1図は本発明の回転電機の固定子の一実施例の縦断側
面図、第2図は同じく一実施例のコイル側スロットライ
ナーの斜視図、第3@は同じく一実施例の鉄心側スロッ
トライナーの斜視図、第4図は従来の回転電機の固定子
の縦断側面図である。 1・・・固定子鉄心、2・・・固定子コイル、3a・・
・スロットライナー、3az・・・コイル側スロットラ
イナ、3ax・・・鉄心側スロットライナー、7・・・
ウェッジ、8・・・コイル絶縁層、9・・・孔、10・
・・潤滑材。
Fig. 1 is a longitudinal sectional side view of an embodiment of a stator for a rotating electrical machine according to the present invention, Fig. 2 is a perspective view of a slot liner on the coil side of the embodiment, and Fig. 3 is a slot liner on the core side of the embodiment. A perspective view of the liner, and FIG. 4 is a longitudinal sectional side view of a stator of a conventional rotating electric machine. 1... Stator core, 2... Stator coil, 3a...
・Slot liner, 3az...Coil side slot liner, 3ax...Core side slot liner, 7...
Wedge, 8... Coil insulating layer, 9... Hole, 10.
...Lubricant.

Claims (1)

【特許請求の範囲】 1、固定子鉄心と、この固定子鉄心のスロット内に挿入
された固定子コイルと、これら固定子コイルと固定子鉄
心との間に挿入されたスロットライナーとを備えた回転
電機の固定子において、前記スロットライナーを、前記
固定子コイル側のコイル側スロットライナーと、前記固
定子鉄心側の鉄心側スロットライナーとの2層で形成す
ると共に、前記コイル側スロットライナーを、その壁面
に孔を設け、かつ潤滑材で処理したことを特徴とする回
転電機の固定子。 2、前記潤滑材が乾性潤滑材、半導電性添加材の少なく
とも前記乾性潤滑材である特許請求の範囲第1項記載の
回転電機の固定子。
[Claims] 1. A stator core, a stator coil inserted into a slot in the stator core, and a slot liner inserted between these stator coils and the stator core. In the stator of a rotating electric machine, the slot liner is formed of two layers: a coil-side slot liner on the stator coil side and a core-side slot liner on the stator core side, and the coil-side slot liner: A stator for a rotating electric machine, characterized in that the wall surface thereof has holes and is treated with a lubricant. 2. The stator of a rotating electric machine according to claim 1, wherein the lubricant is at least the dry lubricant of a dry lubricant and a semiconductive additive.
JP1019286A 1986-01-22 1986-01-22 Stator for rotary electric machine Pending JPS62171427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1019286A JPS62171427A (en) 1986-01-22 1986-01-22 Stator for rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1019286A JPS62171427A (en) 1986-01-22 1986-01-22 Stator for rotary electric machine

Publications (1)

Publication Number Publication Date
JPS62171427A true JPS62171427A (en) 1987-07-28

Family

ID=11743422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1019286A Pending JPS62171427A (en) 1986-01-22 1986-01-22 Stator for rotary electric machine

Country Status (1)

Country Link
JP (1) JPS62171427A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6998753B2 (en) * 2003-06-24 2006-02-14 General Electric Company Multilayer co-extrusion rotor slot armor and system for making the same
JP4438022B1 (en) * 2009-09-10 2010-03-24 ユー・ジー・ケイ株式会社 DC motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6998753B2 (en) * 2003-06-24 2006-02-14 General Electric Company Multilayer co-extrusion rotor slot armor and system for making the same
JP4438022B1 (en) * 2009-09-10 2010-03-24 ユー・ジー・ケイ株式会社 DC motor
JP2011061976A (en) * 2009-09-10 2011-03-24 Ugk Kk Dc motor

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