JPH089595A - Cooler for permanent magnet synchronizer - Google Patents
Cooler for permanent magnet synchronizerInfo
- Publication number
- JPH089595A JPH089595A JP16273094A JP16273094A JPH089595A JP H089595 A JPH089595 A JP H089595A JP 16273094 A JP16273094 A JP 16273094A JP 16273094 A JP16273094 A JP 16273094A JP H089595 A JPH089595 A JP H089595A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- permanent magnet
- frame
- stator core
- thermosetting resin
- 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
Landscapes
- Motor Or Generator Cooling System (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】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を冷却す
る冷却装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for cooling a stator of a permanent magnet synchronous machine in which a rotor is provided with a permanent magnet and the stator is water-cooled.
【0002】[0002]
【従来の技術】回転子界磁に永久磁石を備えた永久磁石
同期機は、保守が簡単でかつ寸法が小さいので、据付け
場所のスペースに制限がある交通機関等に使用される。
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
鉄心を支持する固定子枠に固定子鉄心の外周面に沿って
冷却管を埋め込み、冷却管にポンプ,クーラを用いて冷
却水を循環させていた。2. Description of the Related Art A permanent magnet synchronous machine having a permanent magnet in a rotor field is easy to maintain and has a small size. Therefore, it is used in a transportation system or the like where the space for installation is limited.
Since the rotor of a permanent magnet synchronous machine with permanent magnets in the rotor field does not require excitation by the field winding, the Joule heat is extremely small, so there is no need to cool the rotor, but the stator Water cooling that can be effectively cooled is adopted. But,
The method of directly cooling the windings by passing cooling water through the stator windings requires a complicated winding structure and is expensive. Therefore, a cooling pipe was embedded in the stator frame supporting the stator core along the outer peripheral surface of the stator core, and a cooling water was circulated by using a pump and a cooler in the cooling pipe.
【0003】[0003]
【発明が解決しようとする課題】しかし、固定子鉄心の
外周面に沿って固定子鉄心に冷却管を埋め込み、この冷
却管に冷却水を循環させる方法では、固定子鉄心の外径
側は冷却されるが固定子巻線端部の冷却が不充分である
という問題があった。また、固定子鉄心の外径側は冷却
されるが、固定子鉄心の軸方向端面は冷却が不充分であ
るという問題があった。However, in the method of embedding a cooling pipe in the stator core along the outer peripheral surface of the stator core and circulating cooling water in this cooling pipe, the outer diameter side of the stator core is cooled. However, there is a problem that the cooling of the stator winding ends is insufficient. Further, although the outer diameter side of the stator core is cooled, there is a problem that the axial end surface of the stator core is not sufficiently cooled.
【0004】この発明は、永久磁石同期機の固定子巻線
端部を冷却できるような冷却装置を提供することを目的
とする。An object of the present invention is to provide a cooling device capable of cooling the stator winding ends of a permanent magnet synchronous machine.
【0005】また、この発明は、永久磁石同期機の固定
子鉄心の軸方向端部を冷却できるような冷却装置を提供
することを目的とする。Another object of the present invention is to provide a cooling device capable of cooling the axial end of the stator core of a permanent magnet synchronous machine.
【0006】[0006]
【課題を解決するための手段】回転子に永久磁石を備
え、固定子鉄心を支持する固定子枠に配置された冷却管
に通水させ、固定子を冷却する永久磁石同期機におい
て、軸方向両側の固定子巻線端部を熱硬化性樹脂で固
め、一体となった前記熱硬化性樹脂を前記固定子鉄心の
軸方向端面と前記固定子枠の内径面に接着させたことに
よって上記目的を達成する。In a permanent magnet synchronous machine for cooling a stator, the rotor is provided with a permanent magnet and water is passed through a cooling pipe arranged in a stator frame that supports a stator core. The ends of the stator windings on both sides are fixed with a thermosetting resin, and the integrated thermosetting resin is adhered to the axial end surface of the stator iron core and the inner diameter surface of the stator frame. To achieve.
【0007】また、回転子に永久磁石を備え、固定子鉄
心を支持する固定子枠に配置された冷却管に通水させ、
固定子を冷却する永久磁石同期機において、前記固定子
鉄心の軸方向両端に配置され、前記固定子鉄心の軸方向
端面と前記固定子枠の内径面に接する環状の金属からな
る熱伝達部材を設けたことによって、上記目的を達成す
る。Further, the rotor is provided with a permanent magnet, and water is passed through a cooling pipe arranged in a stator frame which supports a stator core,
In a permanent magnet synchronous machine that cools a stator, a heat transfer member made of an annular metal that is arranged at both axial ends of the stator core and is in contact with the axial end surface of the stator core and the inner diameter surface of the stator frame is provided. By the provision, the above object is achieved.
【0008】[0008]
【作用】この発明においては、軸方向両側の固定子巻線
端部を熱硬化性樹脂で固め、一体となった前記熱硬化性
樹脂を前記固定子鉄心の軸方向端面と前記固定子枠の内
径面に接着させたことによって、熱硬化性樹脂で固定子
巻線端部を被って隣合う固定子巻線の間の隙間を埋め、
硬化させて一体となし、硬化した樹脂を固定子鉄心の軸
方向端面と固定子枠の内径面に接着させたので、固定子
巻線端部から発生する熱を樹脂を介して固定子枠に伝達
させて冷却管を流通する冷却水に吸収させ、固定子巻線
端部を冷却することができる。In the present invention, the ends of the stator windings on both sides in the axial direction are hardened with a thermosetting resin, and the integrated thermosetting resin is combined with the axial end face of the stator core and the stator frame. By adhering to the inner diameter surface, the stator winding ends are covered with thermosetting resin to fill the gap between adjacent stator windings,
The resin was hardened and integrated, and the hardened resin was adhered to the axial end surface of the stator core and the inner diameter surface of the stator frame, so the heat generated from the end of the stator winding is transferred to the stator frame through the resin. It is possible to cool the end portion of the stator winding by transmitting and absorbing it in the cooling water flowing through the cooling pipe.
【0009】また、固定子鉄心の軸方向両端に配置さ
れ、固定子鉄心の軸方向端面と固定子枠の内径面に接す
る環状の金属からなる熱伝達部材を設けたので、固定子
鉄心の軸方向端部から発生する熱を、熱伝達部材を介し
て固定子枠に伝達させて冷却管を流通する冷却水に吸収
させ、固定子鉄心端部を冷却することができる。Further, since the heat transfer members made of an annular metal which are disposed at both axial ends of the stator core and contact the axial end faces of the stator core and the inner diameter face of the stator frame are provided, the shaft of the stator core is The heat generated from the end portions in the direction can be transferred to the stator frame via the heat transfer member and absorbed by the cooling water flowing through the cooling pipe to cool the end portions of the stator core.
【0010】[0010]
【実施例】実施例1 図1はこの発明の固定子巻線端部を熱硬化性樹脂で固め
た冷却装置を備えた永久磁石同期の縦断面図である。図
1において、回転子軸に結合された回転子鉄心には永久
磁石2が取り付けられている。固定子鉄心3の溝には固
定子巻線4が挿入され固定子枠5に取り付けられてい
る。固定子を冷却するために冷却管6が固定子枠5の周
方向に埋め込まれている。冷却管6には図示しないポン
プ,クーラを用いて冷却水を循環させている。この発明
においては、固定子鉄心3に固定子巻線4を挿入し、固
定子鉄心3を固定子枠5に取り付けた状態で軸方向に垂
直に置き、軸方向両側の固定子巻線端部4aに筒状の枠
を嵌め、この枠に熱硬化性樹脂7(例えばエポキシ樹
脂)を流して加熱した後硬化させる。そのとき熱硬化性
樹脂7は固定子鉄心3の両方の軸方向端面及び固定子枠
内周面に接着させる。樹脂が硬化した後筒状枠を取り外
す。 このようにすれば、固定子巻線端部の熱は熱硬化
性樹脂7を介して固定子枠5の内周に伝達され、ここで
冷却管6を流通する冷却水に吸収される。その結果固定
子巻線端部4aを効果的に冷却できる。Embodiment 1 FIG. 1 is a longitudinal sectional view of a permanent magnet synchronization equipped with a cooling device in which the end portions of a stator winding of the present invention are hardened with a thermosetting resin. In FIG. 1, a permanent magnet 2 is attached to a rotor core coupled to a rotor shaft. The stator winding 4 is inserted into the groove of the stator core 3 and attached to the stator frame 5. A cooling pipe 6 is embedded in the circumferential direction of the stator frame 5 to cool the stator. Cooling water is circulated in the cooling pipe 6 by using a pump and a cooler (not shown). According to the present invention, the stator winding 4 is inserted into the stator core 3, and the stator core 3 is attached to the stator frame 5 and placed vertically in the axial direction. A cylindrical frame is fitted in 4a, and a thermosetting resin 7 (for example, epoxy resin) is poured into this frame to heat and then cure. At that time, the thermosetting resin 7 is adhered to both axial end faces of the stator core 3 and the inner peripheral surface of the stator frame. After the resin has hardened, remove the tubular frame. In this way, the heat of the stator winding end is transferred to the inner circumference of the stator frame 5 via the thermosetting resin 7, and is absorbed by the cooling water flowing through the cooling pipe 6 here. As a result, the stator winding end portion 4a can be effectively cooled.
【0011】実施例2 図2はこの発明の固定子鉄心に熱伝達部材からなる冷却
装置を備えた永久磁石同期機の縦断面図である。図2に
おいて図1と同じ部位は同じ符号を付しいる。回転子軸
1,永久磁石2,固定子鉄心3,固定子巻線4,固定子
枠6,冷却管7は図1と同様なので説明を省略する。図
2の例は、固定子鉄心3の軸方向両端に配置され、固定
子鉄心3の軸方向端面と固定子枠5の内周面に接する大
きさの環状の熱伝導率の高い金属からなる熱伝達部材8
を2個用意し、固定子鉄心3を固定子枠5に取り付ける
とき、固定子枠5を熱伝達部材8で挟んで、固定子鉄心
3の両端面に設置させ、固定子枠5に固定する。そのと
き熱伝達部材8の外径側の面は固定子枠5に接触する。
このようにすれば、固定子鉄心端部の熱は熱伝達部材8
を介して固定子枠内周に伝達され、ここで冷却水が流通
する冷却管6へ熱が吸収され、その結果固定子鉄心端部
を効果的に冷却できる。 Embodiment 2 FIG. 2 is a longitudinal sectional view of a permanent magnet synchronous machine having a stator core of the present invention provided with a cooling device composed of a heat transfer member. 2, the same parts as those in FIG. 1 are designated by the same reference numerals. The rotor shaft 1, the permanent magnets 2, the stator core 3, the stator windings 4, the stator frame 6, and the cooling pipes 7 are the same as those in FIG. The example of FIG. 2 is made of a metal having a high thermal conductivity, which is arranged at both ends of the stator core 3 in the axial direction and is in contact with the axial end surface of the stator core 3 and the inner peripheral surface of the stator frame 5. Heat transfer member 8
When two stator cores 3 are attached to the stator frame 5, the stator frame 5 is sandwiched by the heat transfer members 8 and placed on both end faces of the stator core 3 and fixed to the stator frame 5. . At this time, the outer diameter side surface of the heat transfer member 8 contacts the stator frame 5.
With this configuration, the heat of the end portions of the stator core is not transferred to the heat transfer member 8
The heat is transmitted to the inner circumference of the stator frame via the heat exchanger, and the heat is absorbed by the cooling pipe 6 through which the cooling water flows. As a result, the end portions of the stator core can be effectively cooled.
【0012】[0012]
【発明の効果】この発明によれば、熱硬化性樹脂で軸方
向両側の固定子巻線端部を固め、一体となった熱硬化性
樹脂を固定子鉄心の端面と固定子枠の内径面に接着させ
たので、固定子巻線端部から発生する熱は、固定子枠の
内面に伝達され、ここで効果的に吸収され、固定子巻線
端部を冷却することができる。また、固定子鉄心の軸方
向端面と固定子枠の内周面に接する環状の熱伝導率の高
い金属からなる熱伝達部材を、固定子鉄心の軸方向両端
に設けたので、固定子鉄心端部から発生する熱は、固定
子枠の内面に伝達され、ここで効果的に吸収され、固定
子鉄心の端部を冷却することができる。According to the present invention, the end portions of the stator windings on both sides in the axial direction are hardened with a thermosetting resin, and the integrated thermosetting resin is applied to the end surface of the stator core and the inner surface of the stator frame. The heat generated from the stator winding ends is transferred to the inner surface of the stator frame where it is effectively absorbed and can cool the stator winding ends. In addition, since annular heat transfer members made of metal with high thermal conductivity that are in contact with the axial end surface of the stator core and the inner peripheral surface of the stator frame are provided at both axial ends of the stator core, The heat generated by the parts is transferred to the inner surface of the stator frame, where it is effectively absorbed and can cool the ends of the stator core.
【図1】この発明の実施例1の冷却装置を備えた永久磁
石同期機の縦断面図である。FIG. 1 is a vertical sectional view of a permanent magnet synchronous machine including a cooling device according to a first embodiment of the present invention.
【図2】この発明の実施例2の冷却装置を備えた永久磁
石同期機の縦断面図である。FIG. 2 is a vertical sectional view of a permanent magnet synchronous machine including a cooling device according to a second embodiment of the present invention.
1 回転子軸 2 永久磁石 3 固定子鉄心 4 固定子巻線 4a 固定子巻線端部 5 固定子枠 6 冷却管 7 熱硬化性樹脂 8 熱伝達部 1 Rotor Axis 2 Permanent Magnet 3 Stator Iron Core 4 Stator Winding 4a Stator Winding End 5 Stator Frame 6 Cooling Pipe 7 Thermosetting Resin 8 Heat Transfer Section
───────────────────────────────────────────────────── フロントページの続き (72)発明者 石川 泰毅 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 (72)発明者 田原 雅彦 神奈川県横浜市神奈川区宝町2番地 日産 自動車株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuki Ishikawa 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd. (72) Masahiko Tahara 2, Takaracho, Kanagawa-ku, Yokohama, Kanagawa Nissan Motor Co., Ltd.
Claims (2)
持する固定子枠に配置された冷却管に通水させ、固定子
を冷却する永久磁石同期機において、軸方向両側の固定
子巻線端部を熱硬化性樹脂で固め、一体となった前記熱
硬化性樹脂を前記固定子鉄心の軸方向端面と前記固定子
枠の内径面に接着させたことを特徴とする永久磁石同期
機の冷却装置。1. A permanent magnet synchronous machine in which a rotor is provided with a permanent magnet, and water is passed through a cooling pipe arranged in a stator frame that supports a stator core to cool the stator. The permanent magnet synchronization, characterized in that the winding end portion is hardened with a thermosetting resin, and the thermosetting resin integrated is adhered to the axial end surface of the stator core and the inner diameter surface of the stator frame. Machine cooling system.
持する固定子枠に配置された冷却管に通水させ、固定子
を冷却する永久磁石同期機において、前記固定子鉄心の
軸方向両端に配置され、前記固定子鉄心の軸方向端面と
前記固定子枠の内径面に接する環状の金属からなる熱伝
達部材を設けたことを特徴とする永久磁石同期機の冷却
装置。2. A permanent magnet synchronous machine in which a rotor is provided with a permanent magnet and water is passed through a cooling pipe arranged in a stator frame supporting a stator core to cool the stator, the shaft of the stator core being provided. A cooling device for a permanent magnet synchronous machine, comprising heat transfer members, which are arranged at both ends in a direction and are in contact with an axial end surface of the stator core and an inner diameter surface of the stator frame, the heat transfer members being made of an annular metal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16273094A JPH089595A (en) | 1994-06-21 | 1994-06-21 | Cooler for permanent magnet synchronizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16273094A JPH089595A (en) | 1994-06-21 | 1994-06-21 | Cooler for permanent magnet synchronizer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH089595A true JPH089595A (en) | 1996-01-12 |
Family
ID=15760185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16273094A Pending JPH089595A (en) | 1994-06-21 | 1994-06-21 | Cooler for permanent magnet synchronizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH089595A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007336670A (en) * | 2006-06-14 | 2007-12-27 | Toshiba Mitsubishi-Electric Industrial System Corp | Water cooling rotating electric machine |
US7589441B2 (en) * | 1999-08-16 | 2009-09-15 | American Superconductor Corporation | Circumferentially wound cooling tube structure for cooling a stator |
JP2009543537A (en) * | 2006-07-10 | 2009-12-03 | エドワーズ リミテッド | motor |
JP2010268537A (en) * | 2009-05-12 | 2010-11-25 | Nissan Motor Co Ltd | Rotating electrical machine and method of manufacturing the same |
US7919890B2 (en) * | 2005-01-17 | 2011-04-05 | Toyota Jidosha Kabushiki Kaisha | Rotating electric machine |
JP2012037093A (en) * | 2010-08-04 | 2012-02-23 | Honda Motor Co Ltd | Cooling equipment |
CN102857017A (en) * | 2011-06-30 | 2013-01-02 | 南车戚墅堰机车车辆工艺研究所有限公司 | Integrated water-cooling motor shell |
JP2013179746A (en) * | 2012-02-28 | 2013-09-09 | Daikin Ind Ltd | Rotary electric machine and electric vehicle |
CN103904825A (en) * | 2012-12-26 | 2014-07-02 | 现代摩比斯株式会社 | Cooling structure of magnetic bundle motor in axial direction |
JP2015533070A (en) * | 2012-09-20 | 2015-11-16 | ヴァレオ システム ドゥ コントロール モトゥール | Heat engine air circuit flap actuator |
CN109768637A (en) * | 2018-12-15 | 2019-05-17 | 宁德时代电机科技有限公司 | The low-temperature-rise permanent magnet drive motor of external rectangular heat dissipation water pipe and casing note heat-conducting glue |
-
1994
- 1994-06-21 JP JP16273094A patent/JPH089595A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7589441B2 (en) * | 1999-08-16 | 2009-09-15 | American Superconductor Corporation | Circumferentially wound cooling tube structure for cooling a stator |
US7919890B2 (en) * | 2005-01-17 | 2011-04-05 | Toyota Jidosha Kabushiki Kaisha | Rotating electric machine |
JP2007336670A (en) * | 2006-06-14 | 2007-12-27 | Toshiba Mitsubishi-Electric Industrial System Corp | Water cooling rotating electric machine |
JP2009543537A (en) * | 2006-07-10 | 2009-12-03 | エドワーズ リミテッド | motor |
JP2010268537A (en) * | 2009-05-12 | 2010-11-25 | Nissan Motor Co Ltd | Rotating electrical machine and method of manufacturing the same |
JP2012037093A (en) * | 2010-08-04 | 2012-02-23 | Honda Motor Co Ltd | Cooling equipment |
CN102857017A (en) * | 2011-06-30 | 2013-01-02 | 南车戚墅堰机车车辆工艺研究所有限公司 | Integrated water-cooling motor shell |
JP2013179746A (en) * | 2012-02-28 | 2013-09-09 | Daikin Ind Ltd | Rotary electric machine and electric vehicle |
JP2015533070A (en) * | 2012-09-20 | 2015-11-16 | ヴァレオ システム ドゥ コントロール モトゥール | Heat engine air circuit flap actuator |
CN103904825A (en) * | 2012-12-26 | 2014-07-02 | 现代摩比斯株式会社 | Cooling structure of magnetic bundle motor in axial direction |
CN109768637A (en) * | 2018-12-15 | 2019-05-17 | 宁德时代电机科技有限公司 | The low-temperature-rise permanent magnet drive motor of external rectangular heat dissipation water pipe and casing note heat-conducting glue |
CN109768637B (en) * | 2018-12-15 | 2024-04-05 | 宁德时代电机科技有限公司 | Low-temperature-rise permanent magnet driving motor with external rectangular heat-dissipating water pipe and shell filled with heat-conducting glue |
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