JPS60141138A - Stator of rotary electric machine - Google Patents
Stator of rotary electric machineInfo
- Publication number
- JPS60141138A JPS60141138A JP24667883A JP24667883A JPS60141138A JP S60141138 A JPS60141138 A JP S60141138A JP 24667883 A JP24667883 A JP 24667883A JP 24667883 A JP24667883 A JP 24667883A JP S60141138 A JPS60141138 A JP S60141138A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- duct
- exhaust
- core
- pitch
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
Abstract
Description
【発明の詳細な説明】 〔発明の利用分野〕 本発明は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.
第１図には回転電機の固定子の従来例が示されている。 FIG. 1 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薄鉄板を積重ねて構
成された固定子鉄心（以下、鉄心と称する）１、この鉄
心に巻回された固定子コイル（図示せず）を有している
。As shown in the figure, the stator has a stator core (hereinafter referred to as the core) 1 made up of stacked thin iron plates, and a stator coil (not shown) wound around this core. ing.
このように構成された固定子で鉄心１の積層方向に人気
ゾーンＰと排気ゾーンＱとにわけられた通風用のダクト
２を設け、このダクト２に冷却媒体例えば冷却風を送シ
、鉄心１および鉄心１に巻回された固定子コイルを冷却
している。この通風用のダクト２は同図に示されている
ように人気ゾーンＰと排気ゾーンＱとにわけられておシ
、冷却風は次に述べるような経路を通って流通している
。In the stator configured in this way, a ventilation duct 2 is provided in the stacking direction of the iron core 1, which is divided into a popular zone P and an exhaust zone Q, and a cooling medium such as cooling air is sent to the duct 2, And the stator coil wound around the iron core 1 is cooled. As shown in the figure, this ventilation duct 2 is divided into a popular zone P and an exhaust zone Q, and the cooling air flows through the following routes.
すなわち鉄心１の人気ゾーンＰから入った冷却風は図中
矢印表示のように直接回転子３宍面に抜け、回転子コイ
ルを冷却してから再度回転子３表面に出てきて、さらに
鉄心１の排気ゾーンＱに戻る冷却パターンをとるのが一
般的である。そしてこの冷却風の風量を決定するのが通
風用のダクト２であるので、人気ゾーンＰと排気ゾーン
Ｑとのダクト２の数を同一にし、かつこれら入排気ゾー
ンＰ。In other words, the cooling air that enters from the popular zone P of the iron core 1 passes directly to the rotor 3 surface as shown by the arrow in the figure, cools the rotor coil, and then comes out again to the rotor 3 surface, and then flows through the rotor 3 surface again as shown by the arrow in the figure. A cooling pattern that returns to the exhaust zone Q is generally adopted. Since it is the ventilation ducts 2 that determine the volume of this cooling air, the number of ducts 2 in the popular zone P and the exhaust zone Q is the same, and these inlet and exhaust zones P.
Ｑの幅も等しいので、人気側ダクトピッチＷ１と排気側
のダクトピッチＷ２とが等しく、すなわち、等ピッチに
配置されている。Since the widths of Q are also equal, the duct pitch W1 on the popular side and the duct pitch W2 on the exhaust side are equal, that is, they are arranged at equal pitches.
ところでこの構造で１１人気側（人気ゾーンＰ側）の鉄
心１ａに比べ排気側（排気ゾーンＱ側）の鉄心１ｂの方
が冷却風の温度すなわちガス温が尚くなっているので、
縦軸に鉄心１の温度分布をとシ、横軸に等ピッチに配置
した鉄心１をとって等ピッチ配置比よる鉄心ｌの温度分
布が示されている第２図のように、図中矢印方向が上方
向の排気側のダクト間の鉄心の中央部（最高温度を示す
位置）での最高温度が、図中矢印が下方向の人気側の鉄
心の最高温度に比べて高く、この温度上昇が限度となる
嫌いがあった
〔発明の目的〕
本発明は以上の点に鑑みなされたものであり、排気側の
ダクト間の鉄心の最高温度の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。By the way, in this structure, the temperature of the cooling air, that is, the gas temperature, is still lower in the iron core 1b on the exhaust side (exhaust zone Q side) than in the iron core 1a on the 11 popular side (popular zone P side),
As shown in Figure 2, where the vertical axis shows the temperature distribution of the iron core 1 and the horizontal axis shows the iron core 1 arranged at equal pitches, the temperature distribution of the iron core 1 according to the equal pitch arrangement ratio is shown. The maximum temperature at the center of the iron core between the ducts on the exhaust side where the direction is upward (the position showing the highest temperature) is higher than the maximum temperature of the iron core on the popular side where the arrow is pointing downward in the figure, and this temperature increase [Objective of the Invention] The present invention has been made in view of the above points, and provides a stator for a rotating electrical machine that makes it possible to reduce the maximum temperature of the iron core between the ducts on the exhaust side. The purpose is to
すなわち本発明は薄鉄板を積重ねて構成された固定子鉄
心と、この鉄心に巻回された固定子コイルと、前記鉄心
の槓ハ１方向に人気ゾーンと排気ゾーンとにわけられた
通風用のダクトを有し、このダクトに冷却媒体を送り固
定子を冷却するようになした回転電機の固定子において
、前記人気側のタクトピッチと前記排気側のダクトピッ
チとを、前記人気側のダクトピッチを大きく、前記排気
側のダクトピッチが小さくなるように形成したことを特
徴とするものであシ、これに呵字によって人気側のダク
トピッチが大きく、排気側のダクトピッチが小さく形成
されるようになる。That is, the present invention includes a stator core constructed by stacking thin iron plates, a stator coil wound around this core, and a stator core for ventilation divided in one direction into a popular zone and an exhaust zone. In a stator of a rotating electrical machine having a duct and configured to send a cooling medium to the duct to cool the stator, the tact pitch on the popular side and the duct pitch on the exhaust side are defined as the duct pitch on the popular side. The duct pitch is large and the duct pitch on the exhaust side is small, and the duct pitch on the popular side is large and the duct pitch on the exhaust side is small. become.
以下、図示した実施例に基づいて本発明を説明する。第
３図には本発明の一実施例が示されている。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。本
実施例では人気側のダクトピッチＷ３と排気側のダクト
ピッチＷ４とを、人気側のダクトピッチＷ３を大きく、
排気側のダクトピッチＷ４を小さくなるように形成した
。このようにすることによシ入気側のダクトピッチＷ３
が大きく、排気側のダクトピッチＷ４が小さく形成され
るようになって、排気側のダクト２間の鉄心１ｂの最高
温度の低、減を可能とした回転電機の固定子を得ること
ができる。The present invention will be explained below based on the illustrated embodiments. FIG. 3 shows an embodiment of the invention. Note that parts that are the same as those in the conventional system are given the same reference numerals, and therefore their explanations will be omitted. In this embodiment, the duct pitch W3 on the popular side and the duct pitch W4 on the exhaust side are increased, and the duct pitch W3 on the popular side is increased.
The duct pitch W4 on the exhaust side was formed to be small. By doing this, the duct pitch W3 on the inlet side
is large, and the duct pitch W4 on the exhaust side is formed small, so that it is possible to obtain a stator for a rotating electrical machine that can lower the maximum temperature of the iron core 1b between the ducts 2 on the exhaust side.
すなわち人気ゾーンＰと排気ゾーンＱとの幅を変えずに
人気側のダクトピッチｗ３を大きく、排気側のダクトピ
ッチＷ４を小さくしたので、人気側すなわち人気ゾーン
Ｐ側の鉄心１ａの積厚は犬となシ、排気側すなわち排気
ゾーンＱ側の鉄心１ｂの積厚は小さくなる。このため冷
却風の温度は一定であっても人気ゾーンＰ側の鉄心１ａ
の最高温度はその人気側の鉄心１ａの厚さが大きくなっ
たので従来よシ冷却され嬌〈なって大きくなり、排気ゾ
ーンＱ側の鉄心１ｂの最高温度はその排気側の鉄心１ｂ
の厚さが小さくなったので従来より冷却され易くなって
小さくナシ、排気側のダクト２間の鉄心１ｂの最高温度
を低減することができる。そして排気側の鉄心１ｂの最
高温度が従来よシ小さくなり、人気側の鉄心１ａの最高
温度が従来よシ大きくなったので、これら入排気ゾーン
側Ｐ、Ｑの鉄心１ａ、ｌｂの最高温度は均一となる。In other words, the duct pitch w3 on the popular side is increased and the duct pitch W4 on the exhaust side is decreased without changing the width of the popular zone P and the exhaust zone Q, so the stacking thickness of the iron core 1a on the popular side, that is, the popular zone P side is Meanwhile, the stacking thickness of the iron core 1b on the exhaust side, that is, on the exhaust zone Q side, becomes smaller. Therefore, even if the temperature of the cooling air is constant, the iron core 1a on the popular zone P side
Since the thickness of the iron core 1a on the popular side has increased, the maximum temperature of the iron core 1b on the exhaust zone Q side has increased due to cooling compared to the conventional method, and the maximum temperature of the iron core 1b on the exhaust zone Q side has become larger than that of the iron core 1b on the exhaust side.
Since the thickness of the iron core 1b is reduced, it is easier to cool down than before, and the maximum temperature of the iron core 1b between the ducts 2 on the exhaust side can be reduced. The maximum temperature of the iron core 1b on the exhaust side is lower than before, and the maximum temperature of the iron core 1a on the popular side is higher than before, so the maximum temperature of the iron cores 1a and lb on the input and exhaust zone sides P and Q is It becomes uniform.
この結果は縦軸に鉄心１の温度分布をとシ、横軸に不等
ピッチに配置した鉄心１をとって不等ピッチ配置による
鉄心１の温度分布の測定結果が示されている第４図から
も明らかである。同図に示されているように図中矢印が
下方向の鉄心すなわち人気側の鉄心の最高温度も、図中
矢印が上方向の鉄心すなわち排気側の鉄心の最高温度も
ほぼ同じ温度になっている。これは排気側の鉄心の温度
上昇が従来よシも小さく、人気側の鉄心の温度上昇が従
来よシも大きくなったためである。The results are shown in Figure 4, where the vertical axis shows the temperature distribution of the iron core 1, and the horizontal axis shows the iron cores 1 arranged at uneven pitches. It is clear from this. As shown in the figure, the maximum temperature of the iron core whose arrow points downward in the figure, that is, the iron core on the popular side, and the maximum temperature of the iron core whose arrow points upward, that is, the iron core on the exhaust side, are almost the same temperature. There is. This is because the temperature rise of the iron core on the exhaust side is smaller than before, and the temperature rise of the iron core on the popular side is larger than before.
上述のように本発明は人気側の鉄心のダクトピッチが大
きく、排気側の鉄心のダクトピッチが小さくなって、排
気側のダクト間の鉄心の最高温度を低減することができ
るようになり、排気側のダクト間の鉄心の最高温度の低
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, in the present invention, the duct pitch of the iron core on the popular side is large and the duct pitch of the iron core on the exhaust side is small, making it possible to reduce the maximum temperature of the iron core between the ducts on the exhaust side. It is possible to obtain a stator for a rotating electrical machine that allows the maximum temperature of the iron core between the side ducts to be reduced.
第１図は従来の回転電機の固定子の固定子鉄心層シの縦
断側面図、弔２図は従来の回転電機の固定子の等ピッチ
配置による鉄心の温度分布図、第３図は本発明の回転電
機の固定子の一実施例の固定子鉄心周りの縦断台側面図
、第４図は本発明の回転電機の固定子の不等ピッチ配置
による鉄心の温度分布図である。
１・・・固定子鉄心、１ａ・・・人気側の固定子鉄心、
１ｂ・・・排気側の固定子鉄心、２・・・通風用のダク
ト、Ｐ・・・人気ゾーン、Ｑ・・・排気ゾーン、Ｗ３・
・・人気側のダクトピッチ、Ｗ４・・・排気側のダクト
ピッチ。
代理人 弁理士 長崎博男
（ほか１名）
翳３図
脂ｔ４−図Fig. 1 is a longitudinal cross-sectional side view of the stator core layer of the stator of a conventional rotating electric machine, Fig. 2 is a temperature distribution diagram of the iron core with equal pitch arrangement of the stator of a conventional rotating electric machine, and Fig. 3 is a diagram of the present invention. FIG. 4 is a side view of a longitudinal section around the stator core of one embodiment of the stator of the rotating electrical machine of the present invention, and FIG. 4 is a temperature distribution diagram of the core due to the unequal pitch arrangement of the stator of the rotating electrical machine of the present invention. 1... Stator core, 1a... Popular side stator core,
1b... Stator core on the exhaust side, 2... Ventilation duct, P... Popular zone, Q... Exhaust zone, W3...
...Duct pitch on the popular side, W4...Duct pitch on the exhaust side. Agent Patent attorney Hiroo Nagasaki (and 1 other person)
Claims (1)
心に巻回された固定子コイルと、前記鉄心の積層方向に
人気ゾーンと排気ゾーンとにわけられた通風用のダクト
を有し、このダクトに冷却媒体を送シ固定子を冷却する
ようになした回転電機の固定子において、前記人気側の
ダクトピッチと前記排気側のダクトピッチとを、前記人
気側のダクトピッチを大きく、前記排気側のダクトピッ
チが小さくなるように形成したことを特徴とする回転電
機の固定子。1. It has a stator core composed of stacked thin iron plates, a stator coil wound around this core, and a ventilation duct divided into a popular zone and an exhaust zone in the stacking direction of the core. , in the stator of a rotating electric machine in which a cooling medium is sent through the duct to cool the stator, the duct pitch on the popular side and the duct pitch on the exhaust side are made large, and the duct pitch on the popular side is made large; A stator for a rotating electric machine, characterized in that the duct pitch on the exhaust side is formed to be small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24667883A JPS60141138A (en) | 1983-12-28 | 1983-12-28 | Stator of rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24667883A JPS60141138A (en) | 1983-12-28 | 1983-12-28 | Stator of rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60141138A true JPS60141138A (en) | 1985-07-26 |
Family
ID=17151984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24667883A Pending JPS60141138A (en) | 1983-12-28 | 1983-12-28 | Stator of rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60141138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2112742A2 (en) | 2008-04-25 | 2009-10-28 | Hitachi, Ltd. | Rotating electrical machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5137121U (en) * | 1974-09-12 | 1976-03-19 | ||
| JPS5229762U (en) * | 1975-07-09 | 1977-03-02 |
-
1983
- 1983-12-28 JP JP24667883A patent/JPS60141138A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5137121U (en) * | 1974-09-12 | 1976-03-19 | ||
| JPS5229762U (en) * | 1975-07-09 | 1977-03-02 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2112742A2 (en) | 2008-04-25 | 2009-10-28 | Hitachi, Ltd. | Rotating electrical machine |
| EP2112742A3 (en) * | 2008-04-25 | 2011-06-15 | Hitachi, Ltd. | Rotating electrical machine |
| EP2362523A1 (en) * | 2008-04-25 | 2011-08-31 | Hitachi, Ltd. | Rotating electrical machine |
| EP2362524A1 (en) * | 2008-04-25 | 2011-08-31 | Hitachi, Ltd. | Rotating electrical machine |
| US8174156B2 (en) | 2008-04-25 | 2012-05-08 | Hitachi, Ltd. | Rotating electrical machine with different lamination steel kinds and spacing |
| US8304953B2 (en) | 2008-04-25 | 2012-11-06 | Hitachi, Ltd. | Rotating electrical machine |
| US8624462B2 (en) | 2008-04-25 | 2014-01-07 | Hitachi, Ltd. | Rotating electrical machine |
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