JPH03143247A - Cooler of permanent magnet synchronous machine - Google Patents
Cooler of permanent magnet synchronous machineInfo
- Publication number
- JPH03143247A JPH03143247A JP27957589A JP27957589A JPH03143247A JP H03143247 A JPH03143247 A JP H03143247A JP 27957589 A JP27957589 A JP 27957589A JP 27957589 A JP27957589 A JP 27957589A JP H03143247 A JPH03143247 A JP H03143247A
- Authority
- JP
- Japan
- Prior art keywords
- water
- permanent magnet
- cooling
- yoke ring
- stator
- 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
- 230000001360 synchronised effect Effects 0.000 title claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 239000000498 cooling water Substances 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
Description
この発明は回転子に永久磁石を備え、固定子を水冷する
永久磁石同期機の固定子巻線のコイルエンドを冷却する
冷却装置に関する。The present invention relates to a cooling device for cooling the coil ends of a stator winding of a permanent magnet synchronous machine that has a rotor equipped with a permanent magnet and that cools the stator with water.
回転子界磁に永久磁石を備えた永久磁石間１υＩ機は、
保守が簡単でかつ寸法が小さいので、据え付は場所のス
ペースに制限がある舶用等に使用される。回転子界磁に
永久磁石を備えた永久磁石同期機の回転子は、界磁巻線
による励磁を要しないためジュール熱が極めて少ないの
で、回転子を冷却する必要はないが、固定子を効果的に
冷却できる水冷が採用される。しかし、固定子巻線内に
冷却水を通して巻線を直接冷却する方法は、巻線の構造
が複雑となり高価である。そこで固定子鉄心を支持する
継鉄リングに鉄心外周面に沿って通水穴を穿って、通水
穴に冷却水を通し固定子を冷却していた。冷却水は、水
槽、ポンプ、クーラを用いて循環していた。The permanent magnet distance 1υI machine with permanent magnets in the rotor field is
Since it is easy to maintain and has small dimensions, it is used in marine applications where installation space is limited. The rotor of a permanent magnet synchronous machine with a permanent magnet in the rotor field does not require excitation by the field winding, so it generates extremely little Joule heat, so there is no need to cool the rotor, but the stator is Water cooling is used for cooling. However, the method of directly cooling the windings by passing cooling water into the stator windings requires a complicated structure of the windings and is expensive. Therefore, water holes were drilled in the yoke ring that supported the stator core along the outer circumferential surface of the core, and cooling water was passed through the holes to cool the stator. Cooling water was circulated using a water tank, pump, and cooler.
しかし、固定子の継鉄リングに鉄心外周面に沿って通水
穴を穿ち、通水穴に冷却水を通す方法では、固定子巻線
のコイルエンドの冷却が不充分であるという問題があっ
た。
この発明は、固定子巻線のコイルエンドを冷却できるよ
うな永久磁石同期機の冷却装置を提供することを目的と
する。However, with the method of drilling water holes in the stator yoke ring along the outer circumferential surface of the core and passing cooling water through the holes, there is a problem in that the coil ends of the stator windings are insufficiently cooled. Ta. An object of the present invention is to provide a cooling device for a permanent magnet synchronous machine that can cool the coil ends of a stator winding.
上記目的は、回転子に永久磁石を備え、固定子を水冷す
る永久磁石同期機において、固定子鉄心を支持する継鉄
リングを軸方向に貫通ずる複数の通水穴と、前記継鉄リ
ングの軸方向両端に位置し、冷却水を連続的に流通させ
るように前記隣り合う通水穴を連通させる複数の水室ど
、この水室に取り付けた冷却フィンとから構成すること
によって遠戚される。The above object is to provide a permanent magnet synchronous machine in which a rotor is equipped with a permanent magnet and a stator is water-cooled, with a plurality of water passage holes extending axially through a yoke ring that supports a stator core, and a plurality of water passage holes in the yoke ring. It is distantly related by comprising a plurality of water chambers located at both ends in the axial direction and communicating with the adjacent water holes so as to allow cooling water to flow continuously, and cooling fins attached to the water chambers. .
固定子鉄心を支持する継鉄リングを軸方向に貫通する複
数の通水穴と、前記継鉄リングの軸方向両端に位置する
水室により、隣り合う通水穴を連通して冷却水を連続的
に流通させて循環させ、かつこの水室に冷却フィンを取
り付けたので、張り出している水室と冷却フィンとによ
り、コイルエンドから発生する熱を自然対流により吸収
させて、固定子巻線のコイルエンドを冷却することがで
きる。A plurality of water holes that axially pass through the yoke ring that supports the stator core, and water chambers located at both axial ends of the yoke ring allow adjacent water holes to communicate with each other to continuously supply cooling water. Since the cooling fins are attached to this water chamber, the heat generated from the coil ends is absorbed by natural convection, and the stator windings are cooled. The coil end can be cooled.
以下図面に基づいてこの発明の詳細な説明する。第１図
はこの発明の実施例による冷却装置を取り付けた永久磁
石同期機の縦断面図、第２園は第１図の固定子の展開図
である。第１図において、回転子軸１」二に永久磁石２
を接着材で固定する。
永久磁石２に対向して固定子鉄心３及び固定子巻線４が
設けられ、固定子鉄心３は固定子枠に取り付けた継鉄リ
ング５に支持されている。継鉄リング５を軸方向に貫通
ずる複数の通水穴６と、継鉄リング５の両端に位置し、
冷却水を連続的に流通させるように、隣り合った通水穴
６を連通させる複数の水室７と、この水室７に取り付け
た冷却フィン８とから冷却装置を構成した。冷却水は、
図示されない水槽、ポンプ、クーラを用いて循環してい
る。
第２図に示すように、継鉄リング５を貫通する複数の軸
方向の通水穴６と、通水穴６の両端に千鳥配置された水
室７により連続する水路を形成している。水室７の外側
には、冷却効果を高めるために、冷却フィン８を備えて
いる。固定子巻線４のコイルエンドで発生ずる熱は、張
り出している水室７と冷却フィン８とにより自然対流で
吸収される。矢印は冷却水の流れを示す。
第３図はこの発明の他の実施例による冷却装置を取り付
けた永久磁石同期機の縦断面図、第４図は第３図の固定
子の展開図である。第３図において、水室として継鉄リ
ング５の軸方向両端に位置し、多数の冷却フィン８を有
するＵ字形のパイプ９を用いて隣り合う通水穴６を連通
させた。冷却水は、通水穴５及びパイプ９を通って矢印
のように流れる。水室としてのパイプ９ば伝熱面積を拡
大させるとともに、固定子巻線４のコイルエンドを広範
囲にわたり冷却する。The present invention will be described in detail below based on the drawings. FIG. 1 is a longitudinal sectional view of a permanent magnet synchronous machine equipped with a cooling device according to an embodiment of the present invention, and FIG. 2 is a developed view of the stator shown in FIG. 1. In Figure 1, a permanent magnet 2 is placed on the rotor shaft 1''.
Fix with adhesive. A stator core 3 and a stator winding 4 are provided facing the permanent magnet 2, and the stator core 3 is supported by a yoke ring 5 attached to the stator frame. A plurality of water holes 6 passing through the yoke ring 5 in the axial direction, and located at both ends of the yoke ring 5,
A cooling device was constructed from a plurality of water chambers 7 that communicated with adjacent water passage holes 6 and cooling fins 8 attached to the water chambers 7 so that cooling water could flow continuously. The cooling water is
It is circulated using a water tank, pump, and cooler (not shown). As shown in FIG. 2, a continuous water channel is formed by a plurality of axial water holes 6 passing through the yoke ring 5 and water chambers 7 arranged in a staggered manner at both ends of the water holes 6. Cooling fins 8 are provided on the outside of the water chamber 7 to enhance the cooling effect. Heat generated at the coil end of the stator winding 4 is absorbed by natural convection by the protruding water chamber 7 and cooling fins 8. Arrows indicate the flow of cooling water. FIG. 3 is a longitudinal sectional view of a permanent magnet synchronous machine equipped with a cooling device according to another embodiment of the present invention, and FIG. 4 is a developed view of the stator of FIG. 3. In FIG. 3, U-shaped pipes 9 having a large number of cooling fins 8 and located at both ends of the yoke ring 5 in the axial direction are used as water chambers to communicate adjacent water passage holes 6. Cooling water flows through the water passage hole 5 and the pipe 9 as shown by the arrow. The pipe 9 serving as a water chamber expands the heat transfer area and cools the coil ends of the stator winding 4 over a wide range.
この発明は、継鉄リングを軸方向に貫通ずる複数の通水
穴と、この通水穴を連通ずる水室とにより、冷却水を連
続的に流通させるようにし、かつ水室に冷却フィンを取
り付け、固定子巻線のコイルエンドから発生する熱を自
然対流により水室と冷却フィンとに吸収させて冷却水を
循環させるので、固定子巻線のコイルエンドを冷却でき
る。
さらに、水室として多数の冷却フィンを有するＵ字形の
パイプを用いるので、固定子巻線の：１イルエンドを効
果的に冷却することができる。This invention allows cooling water to flow continuously through a plurality of water holes passing through a yoke ring in the axial direction and a water chamber communicating with the water holes, and cooling fins are provided in the water chamber. Since the heat generated from the coil ends of the stator windings is absorbed by the water chamber and the cooling fins by natural convection and the cooling water is circulated, the coil ends of the stator windings can be cooled. Furthermore, since a U-shaped pipe having a large number of cooling fins is used as the water chamber, it is possible to effectively cool the :1 end of the stator winding.
第１図はこの発明の実施例による冷却装置を取り付けた
永久磁石同期機の縦断面図、第２図は第１図の固定子の
展開図、第３図はこの発明の他の実施例による冷却装置
を取り付けた永久磁石同期機の縦断面図、第４図は第３
図の固定子の展開図である。
１：回転子軸、２；永久磁石、３：固定子鉄心、４；固
定子巻線、５：継鉄リング、６：通水穴、７：水室、８
：冷却フィン、９：水室としてのパイプ。FIG. 1 is a longitudinal cross-sectional view of a permanent magnet synchronous machine equipped with a cooling device according to an embodiment of the present invention, FIG. 2 is an exploded view of the stator of FIG. 1, and FIG. 3 is according to another embodiment of the present invention. A vertical cross-sectional view of a permanent magnet synchronous machine with a cooling device installed, Figure 4 is
FIG. 3 is a developed view of the stator shown in the figure. 1: Rotor shaft, 2: Permanent magnet, 3: Stator core, 4: Stator winding, 5: Yoke ring, 6: Water hole, 7: Water chamber, 8
: Cooling fin, 9: Pipe as water chamber.
Claims (1)
石同期機において、固定子鉄心を支持する継鉄リングを
軸方向に貫通する複数の通水穴と、前記継鉄リングの軸
方向両端に位置し、冷却水を連続的に流通させるように
前記隣り合う通水穴を連通させる複数の水室と、この水
室に取り付けた冷却フィンとからなることを特徴とする
永久磁石同期機の冷却装置。1) In a permanent magnet synchronous machine that includes a permanent magnet in the rotor and water cools the stator, a plurality of water holes that axially penetrate a yoke ring that supports the stator core, and a plurality of water holes that axially penetrate the yoke ring that supports the stator core; A permanent magnet synchronous machine characterized by comprising a plurality of water chambers located at both ends and communicating with the adjacent water holes so as to continuously circulate cooling water, and cooling fins attached to the water chambers. cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27957589A JPH03143247A (en) | 1989-10-26 | 1989-10-26 | Cooler of permanent magnet synchronous machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27957589A JPH03143247A (en) | 1989-10-26 | 1989-10-26 | Cooler of permanent magnet synchronous machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03143247A true JPH03143247A (en) | 1991-06-18 |
Family
ID=17612894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27957589A Pending JPH03143247A (en) | 1989-10-26 | 1989-10-26 | Cooler of permanent magnet synchronous machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03143247A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05239966A (en) * | 1992-02-26 | 1993-09-17 | Mitsui Mining & Smelting Co Ltd | Slide type door lock device |
| JP2007135306A (en) * | 2005-11-10 | 2007-05-31 | Fuji Electric Systems Co Ltd | Cooling device for rotary electric machine equipped with permanent magnet |
| EP2451058A1 (en) * | 2010-11-04 | 2012-05-09 | Siemens Aktiengesellschaft | Welded manifold for a stator core segment |
| JP2015023600A (en) * | 2013-07-16 | 2015-02-02 | 東芝三菱電機産業システム株式会社 | Rotary electric machine |
| CN113672342A (en) * | 2021-08-02 | 2021-11-19 | 上海交通大学 | Embedded virtualization system, construction method, test method, terminal and medium |
| US11581769B2 (en) * | 2008-09-23 | 2023-02-14 | Aerovironment, Inc. | Stator winding heat sink configuration |
-
1989
- 1989-10-26 JP JP27957589A patent/JPH03143247A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05239966A (en) * | 1992-02-26 | 1993-09-17 | Mitsui Mining & Smelting Co Ltd | Slide type door lock device |
| JP2007135306A (en) * | 2005-11-10 | 2007-05-31 | Fuji Electric Systems Co Ltd | Cooling device for rotary electric machine equipped with permanent magnet |
| US11581769B2 (en) * | 2008-09-23 | 2023-02-14 | Aerovironment, Inc. | Stator winding heat sink configuration |
| EP2451058A1 (en) * | 2010-11-04 | 2012-05-09 | Siemens Aktiengesellschaft | Welded manifold for a stator core segment |
| JP2012100524A (en) * | 2010-11-04 | 2012-05-24 | Siemens Ag | Welded manifold for stator housing segment |
| JP2015023600A (en) * | 2013-07-16 | 2015-02-02 | 東芝三菱電機産業システム株式会社 | Rotary electric machine |
| CN113672342A (en) * | 2021-08-02 | 2021-11-19 | 上海交通大学 | Embedded virtualization system, construction method, test method, terminal and medium |
| CN113672342B (en) * | 2021-08-02 | 2024-02-27 | 上海交通大学 | Embedded virtualization system, construction and test methods, terminal and medium |
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