JPH03107343A - Fixing structure of rotary electric machine - Google Patents
Fixing structure of rotary electric machineInfo
- Publication number
- JPH03107343A JPH03107343A JP24350089A JP24350089A JPH03107343A JP H03107343 A JPH03107343 A JP H03107343A JP 24350089 A JP24350089 A JP 24350089A JP 24350089 A JP24350089 A JP 24350089A JP H03107343 A JPH03107343 A JP H03107343A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- wedge
- spacer
- spring plate
- electric machine
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 239000003365 glass fiber Substances 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 241001314298 Verbascum sinuatum Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、回転電機コイルの固定構造に関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a fixing structure for rotating electric machine coils.
（従来の技術）
従来の回転電機コイルの固定構造を示す第４図において
、詳細省略した固定子鉄心１にＵ字状に設けられたスロ
ット１ａの底には、短冊状の絶縁材のスペーサ４が挿入
され、このスペーサ４の上側にはあらかじめ所定の形に
成形されて重ねられ外周に絶縁層が形成された下コイル
２ｂが挿入され、この下コイル２ｂの上側にはスペーサ
４と同形状のスペーサ５が挿入され、更にこのスペーサ
５の上側には下コイル２ｂと同形状の上コイル２ａが挿
入されている。(Prior Art) In FIG. 4, which shows a conventional fixing structure for rotating electrical machine coils, a strip-shaped insulating spacer 4 is placed at the bottom of a U-shaped slot 1a provided in a stator core 1, details of which are omitted. is inserted, and above this spacer 4 is inserted a lower coil 2b which has been formed into a predetermined shape and overlapped with an insulating layer formed on the outer periphery, and above this lower coil 2b is inserted a lower coil 2b having the same shape as the spacer 4. A spacer 5 is inserted, and an upper coil 2a having the same shape as the lower coil 2b is inserted above the spacer 5.
更に、この上コイル２ａの上面にはスペーサ４゜５と同
形状のスペーサ６が挿入され、このスペーサ６の上面に
は横からみて波状、上からみて短冊状のガラス繊維強化
ポリエステルの板ばね７が挿入され、この板ばね７の上
面にはスロット１ｂの開口端近くにＶ字状に設けられた
楔止めみぞ１ｂに両側が嵌合された楔３が挿入されてい
る。Furthermore, a spacer 6 having the same shape as the spacer 4.degree. 5 is inserted into the upper surface of the upper coil 2a, and a glass fiber reinforced polyester leaf spring 7 which is wavy when viewed from the side and strip-shaped when viewed from above is inserted into the upper surface of the spacer 6. is inserted into the upper surface of the leaf spring 7, and a wedge 3 is inserted into the upper surface of the leaf spring 7, the wedge 3 having both sides fitted into a wedge-locking groove 1b provided in a V-shape near the open end of the slot 1b.
このように構成された回転電機コイルの固定構造におい
ては、楔止めみぞ１ｂに挿入された楔３の下面で板ばね
７を撓ませることで、スペーサ５゜６を介して上下のコ
イル２ａ、２ｂはスロット１ａの底に押圧されて、回転
電機の運転時の電磁力や機械的振動及びコイル２ａ、２
ｂの絶縁物の経年変化による収縮などでずれないように
、コイル２ａ、２ｂが固定されている。In the rotating electric machine coil fixing structure configured in this way, by bending the leaf spring 7 on the lower surface of the wedge 3 inserted into the wedge retaining groove 1b, the upper and lower coils 2a, 2b are fixed via the spacer 5°6. are pressed against the bottom of the slot 1a, and the electromagnetic force and mechanical vibration during operation of the rotating electrical machine and the coils 2a, 2
The coils 2a and 2b are fixed so as not to shift due to shrinkage of the insulator b due to aging.
（発明が解決しようとする問題点）
ところが、このように構成された回転電機コイルの固定
構造では、波状の板ばね７のために、楔３の挿入がやり
にくくなる。(Problems to be Solved by the Invention) However, in the rotating electric machine coil fixing structure configured in this way, it becomes difficult to insert the wedge 3 because of the wavy leaf spring 7.
すなわち、従来、楔３を楔止めみぞ１ｂに打ち込むとき
には、楔３の挿入端前方の板ばね７の山の部分を上から
順に押さえて撓ませながら行っていたが、すると作業が
繁雑になるだけでなく、もし、板ばね７の山を押さえる
力が強すぎると、その山の部分が永久変形して上下のコ
イル２ａ。That is, conventionally, when driving the wedge 3 into the wedge retaining groove 1b, the ridges of the leaf spring 7 in front of the insertion end of the wedge 3 were pressed and bent in order from the top, but this only made the work more complicated. However, if the force pressing down on the peaks of the leaf spring 7 is too strong, the peaks will permanently deform and the upper and lower coils 2a will be damaged.
２ｂの固定力が落ちる。The fixing force of 2b is reduced.
又、逆に、板ばね７を撓ませないで楔３を打ち込むと、
板ばね７の山に当たった楔３の先端で押されて、板ばね
７がずれたり楔３の先端が当たった部分で折れ曲がるお
それもある。Conversely, if the wedge 3 is driven in without bending the leaf spring 7,
There is also a risk that the leaf spring 7 may be pushed by the tip of the wedge 3 that hits the peak of the leaf spring 7, and the leaf spring 7 may be displaced or bent at the portion where the tip of the wedge 3 hits.
そこで、本発明の目的は、組立容易でコイルを強固に固
定することのできる回転電機コイルの固定構造を得るこ
とである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fixing structure for a rotating electric machine coil that is easy to assemble and can firmly fix the coil.
［発明の構成コ
（課題を解決するための手段と作用）
本発明は、回転電機のスロットに挿入されたコイルをス
ロットに挿入された楔で固定する回転電機コイルの固定
構造において、コイルと楔との間に加熱による形状復帰
で波状に変形するばね板を設けることで、組立容易でコ
イルを強固に保持した回転電機コイルの保持構成である
。[Configuration of the Invention (Means and Effects for Solving the Problems) The present invention provides a rotating electrical machine coil fixing structure in which a coil inserted into a slot of a rotating electrical machine is fixed with a wedge inserted into the slot. This is a rotating electric machine coil holding structure that is easy to assemble and firmly holds the coil by providing a spring plate that deforms into a wave shape by returning to its shape by heating.
（実施例）
以下、本発明の回転電機コイルの固定構造の一実施例を
図面を参照して説明する。但し、第４図と重複する部分
は省く。(Example) Hereinafter, an example of a fixing structure for a rotating electric machine coil of the present invention will be described with reference to the drawings. However, parts that overlap with Figure 4 are omitted.
第１図において、鉄心１のスロット１ａの底から順に重
ねて挿入されたスペーサ４．下コイル２ｂ、スペーサ５
．上コイル２ａの上端に挿入されたスペーサ６と楔３と
の間−には、あらかじめ第４図の板ばね７のような波形
形状に記憶された形状回復前の短冊状の樹脂性のばね板
１７が挿入されている。In FIG. 1, spacers 4. Lower coil 2b, spacer 5
．． Between the spacer 6 inserted into the upper end of the upper coil 2a and the wedge 3, there is a rectangular resin spring plate that has been memorized in a waveform shape like the leaf spring 7 in FIG. 4 before its shape is recovered. 17 has been inserted.
このばね板１７は、形状記憶樹脂が使われたガラス強化
ポリエステル樹脂板で作られていて、復元温度が約１０
０℃である。This spring plate 17 is made of a glass-reinforced polyester resin plate using shape memory resin, and the restoring temperature is approximately 10
It is 0°C.
このように構成された回転電機コイルの固定構造では、
組立時の板ばね１７は平坦であるので、楔３の挿入には
治具などを使わなくとも容易に行うことができる。In the fixed structure of the rotating electric machine coil configured in this way,
Since the leaf spring 17 is flat when assembled, the wedge 3 can be easily inserted without using a jig or the like.
又、楔３を挿入した後、鉄心１を加熱炉に挿入して所定
の温度に加熱することで、第４図の従来のような波形に
復元するので、上下のコイル２ａ。Moreover, after inserting the wedge 3, the iron core 1 is inserted into a heating furnace and heated to a predetermined temperature, thereby restoring the waveform to the conventional waveform shown in FIG. 4, so that the upper and lower coils 2a.
２ｂなどを強固に固定することができる。2b etc. can be firmly fixed.
第２図は、本発明の回転電機コイルの固定構造の他の実
施例を示す。FIG. 2 shows another embodiment of the rotating electric machine coil fixing structure of the present invention.
同図において、同図（ａ）は板ばね８が記憶形状に復元
した形状を示し、同図（ｂ）は加工形状がいづれも波形
であるが、復元形状よりも加工形状のときの山の高さが
低く、シたがって山の間隔はＷｏ）Ｗとなっている。In the figure, (a) shows the shape of the leaf spring 8 restored to the memorized shape, and (b) shows the processed shape in both waveforms, but the peaks in the processed shape are higher than in the restored shape. The height is low, so the distance between the mountains is Wo)W.
この場合には、復元のための形状変化率が少なくてすむ
ので復元精度が上がる利点がある。In this case, there is an advantage that the rate of shape change for restoration is small, and the restoration accuracy is increased.
又、第３図は、本発明の回転電機コイルの固定構造の異
なる他の実施例を示す。Further, FIG. 3 shows another embodiment of the rotating electric machine coil fixing structure of the present invention.
同図においては、同図（ａ）に示すように記憶形状に復
元した形は第２図とほぼ同形の波形であるが、加工形状
は同図（ｂ）に示すように歪波形となっている。In the figure, the shape restored to the memorized shape as shown in figure (a) has a waveform that is almost the same as that in figure 2, but the processed shape has a distorted waveform as shown in figure (b). There is.
この場合には、楔１３の下面とスペーサ１６の上面に、
板ばね１８の復元後の波間隔とほぼ同一間隔の凹部Ｈａ
、１６ａをそれぞれ設けることで、復元した板ばね１８
で楔１３とスペーサ１６が一体となるので、回転電機の
運転時の電磁力や振動などに対しても長手方向にずれに
くくなり、上下のコイル２ａ。In this case, on the lower surface of the wedge 13 and the upper surface of the spacer 16,
Concave portions Ha having approximately the same spacing as the wave spacing after restoring of the leaf spring 18
, 16a, the restored leaf spring 18
Since the wedge 13 and the spacer 16 are integrated, the upper and lower coils 2a are less likely to shift in the longitudinal direction due to electromagnetic force or vibration during operation of the rotating electric machine.
２ｂなどをより強固に固定できる回転電機コイルの固定
構造となる利点がある。This has the advantage of providing a fixing structure for the rotating electric machine coil that can more firmly fix the coils such as 2b.
なお、第３図において、凹部１３ａ、 １６ａはスペー
サ１３．１６の中央１，２箇所だけにしてもよい。In addition, in FIG. 3, the recesses 13a and 16a may be provided only at one or two locations in the center of the spacer 13.16.
更に、この板ばね８． ｌ’１．１Ｂは絶縁物であるの
で、磁束による鉄損−加熱などはない。Furthermore, this leaf spring 8. Since l'1.1B is an insulator, there is no iron loss or heating due to magnetic flux.
又、第３図において、楔１３とスペーサ１Ｇとの間には
、波形の加工形状のばね板１８を挿入したが、第１図の
ように短冊状の平板として所要スペーサを減してもよい
。Further, in FIG. 3, a wave-shaped spring plate 18 is inserted between the wedge 13 and the spacer 1G, but the required spacer may be reduced by using a rectangular flat plate as shown in FIG. .
［発明の効果］
以上、本発明によれば、回転電機のスロットに挿入され
たコイルをスロットに挿入された楔で固定する回転電機
コイルの固定構造において、楔とコイルとの間に加熱に
よる形状復帰で波形に変形するばね板を設けることで、
楔の挿入を容易にし、波形に復帰したばね板でコイルを
押さえたので、組立容易でコイルを強固に固定すること
のできる回転電機コイルの固定構造を得ることができる
。[Effects of the Invention] As described above, according to the present invention, in the fixing structure of a rotating electric machine coil in which a coil inserted into a slot of a rotating electric machine is fixed by a wedge inserted into the slot, a shape formed by heating is formed between the wedge and the coil. By providing a spring plate that deforms into a wave shape when returning,
Since the wedge is easily inserted and the coil is held down by the spring plate that has returned to its corrugated shape, it is possible to obtain a rotating electric machine coil fixing structure that is easy to assemble and can firmly fix the coil.
第１図は本発明の回転電機コイルの固定構造の一実施例
を示す部分断面斜視図、第２図（ａ）は本発明の回転電
機コイルの固定構造の他の実施例を示す要部詳細図、同
図（ｂ）は同図（ａ）の作用を示す要部詳細図、第３図
（ａ）は本発明の回転電機コイルの固定構造の異なる他
の実施例を示す要部詳細図、同図（ｂ）は同図（ａ）の
作用を示す要部詳細図、第４図は従来の回転電機コイル
の固定構造を示す部分断面斜視図である。
ｌａ・・・スロット
１ｂ・・・楔
２ａ・・・上コイル
２ｂ・・・下コイル
１７・・・ばね板
（８７３３）FIG. 1 is a partial cross-sectional perspective view showing one embodiment of the fixing structure for a rotating electrical machine coil of the present invention, and FIG. 2(a) is a detailed view of a main part showing another embodiment of the fixing structure for a rotating electrical machine coil of the present invention 3(b) is a detailed view of the main part showing the action of FIG. FIG. 4(b) is a detailed view of a main part showing the operation of FIG. 4(a), and FIG. 4 is a partially sectional perspective view showing a conventional rotating electric machine coil fixing structure. la...Slot 1b...Wedge 2a...Upper coil 2b...Lower coil 17...Spring plate (8733)
Claims (1)
に挿入された楔で固定する回転電機コイルの固定構造に
おいて、前記コイルと前記楔との間に加熱による形状復
帰で波形に変形するばね板を設けたことを特徴とする回
転電機コイルの固定構造。In a fixing structure for a rotating electric machine coil in which a coil inserted into a slot of a rotating electric machine is fixed by a wedge inserted into the slot, a spring plate that is deformed into a wave shape by returning to its shape by heating is provided between the coil and the wedge. A fixed structure for a rotating electric machine coil, which is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24350089A JPH03107343A (en) | 1989-09-21 | 1989-09-21 | Fixing structure of rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24350089A JPH03107343A (en) | 1989-09-21 | 1989-09-21 | Fixing structure of rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03107343A true JPH03107343A (en) | 1991-05-07 |
Family
ID=17104819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24350089A Pending JPH03107343A (en) | 1989-09-21 | 1989-09-21 | Fixing structure of rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03107343A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7253548B2 (en) * | 2003-06-16 | 2007-08-07 | Pratt & Whitney Canada Corp. | Method and apparatus for controlling an electric machine |
| JP2012023789A (en) * | 2010-07-12 | 2012-02-02 | Hitachi Ltd | Fixing method of rotary electric machine stator winding and insulated waveform spring for holding winding used for the same |
| CN102510154A (en) * | 2011-10-26 | 2012-06-20 | 中电电机股份有限公司 | Structure of stator coil with sectional slot wedges |
| CN105471151A (en) * | 2014-08-28 | 2016-04-06 | 通用电气公司 | Planar-ended ripple spring and hardened stator bar armor |
-
1989
- 1989-09-21 JP JP24350089A patent/JPH03107343A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7253548B2 (en) * | 2003-06-16 | 2007-08-07 | Pratt & Whitney Canada Corp. | Method and apparatus for controlling an electric machine |
| JP2012023789A (en) * | 2010-07-12 | 2012-02-02 | Hitachi Ltd | Fixing method of rotary electric machine stator winding and insulated waveform spring for holding winding used for the same |
| CN102510154A (en) * | 2011-10-26 | 2012-06-20 | 中电电机股份有限公司 | Structure of stator coil with sectional slot wedges |
| CN105471151A (en) * | 2014-08-28 | 2016-04-06 | 通用电气公司 | Planar-ended ripple spring and hardened stator bar armor |
| CN105471151B (en) * | 2014-08-28 | 2019-04-09 | 通用电气公司 | The ripple spring and hardening stator bar mask of end plane |
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