JP2003125548A - Stator or dynamo-electric machine - Google Patents
Stator or dynamo-electric machineInfo
- Publication number
- JP2003125548A JP2003125548A JP2001312258A JP2001312258A JP2003125548A JP 2003125548 A JP2003125548 A JP 2003125548A JP 2001312258 A JP2001312258 A JP 2001312258A JP 2001312258 A JP2001312258 A JP 2001312258A JP 2003125548 A JP2003125548 A JP 2003125548A
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- stator
- coil
- stator core
- tooth portion
- 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.)
- Granted
Links
Landscapes
- Windings For Motors And Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Cooling System (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、回転電機のステータ、
特にステータコアの冷却構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator of a rotary electric machine,
In particular, it relates to a cooling structure for a stator core.
【０００２】[0002]
【従来の技術】回転電機の冷却で最も重要となるのは、
稼動時に発熱量の多いステータコイルの冷却であり、次
いで重要となるのは、例えば永久磁石式同期電動機の場
合には磁石、誘導電動機の場合にはかご型導体の冷却で
ある。2. Description of the Related Art The most important thing in cooling a rotating electric machine is
Cooling of the stator coil, which generates a large amount of heat during operation, is next important, for example, cooling of the magnet in the case of a permanent magnet type synchronous motor and the cage conductor in the case of an induction motor.
【０００３】このうち、ステータコイルを冷却する技術
には、特開平４−３６４３４３号に示される手法、すな
わち、ステータスロットの開口部を樹脂層で閉塞し、ス
ロット内部の空間を冷却通路として利用する手法があ
る。この技術によれば、冷却液（例えばオイル）でステ
ータコイルを直接冷却することが可能であり、しかも、
液体の冷却液がステータ〜ロータ間のギャップに入り込
まないので、ロータ回転時のフリクション増加が避けら
れる。Among them, the technique for cooling the stator coil is the technique disclosed in Japanese Patent Laid-Open No. 4-364343, that is, the opening of the status lot is closed with a resin layer and the space inside the slot is used as a cooling passage. There is a technique. According to this technique, it is possible to directly cool the stator coil with a cooling liquid (for example, oil), and
Since the liquid cooling liquid does not enter the gap between the stator and the rotor, it is possible to avoid an increase in friction when the rotor rotates.
【０００４】一方、ロータに配設した磁石あるいはかご
型導体等を冷却する場合、例えばロータ軸を中空構造と
してロータ内部に冷却液を供給することが考えられる。
しかしながらこの場合、ロータの外周部に配設される磁
石あるいはかご型導体の近くまで冷却液を導く通路をロ
ータコア内部に形成する必要が生じ、ロータの構造が複
雑になるという問題のほか、広い回転速度範囲で使用さ
れる電動機の場合、ロータ回転に伴う遠心力の影響が大
きく変化するので、冷却液の流量を常に所望の流量とす
るのが非常に困難になるという問題が生じる。On the other hand, in the case of cooling the magnet or the squirrel-cage conductor arranged in the rotor, for example, it may be considered that the rotor shaft has a hollow structure and the cooling liquid is supplied into the rotor.
However, in this case, it is necessary to form a passage in the rotor core for guiding the cooling liquid to the vicinity of the magnet or the cage-shaped conductor arranged on the outer peripheral portion of the rotor, which complicates the rotor structure and causes a wide rotation. In the case of an electric motor used in the speed range, the influence of the centrifugal force caused by the rotation of the rotor changes greatly, so that it becomes very difficult to always keep the flow rate of the cooling liquid at a desired flow rate.
【０００５】このような問題により、ロータに配設した
磁石あるいはかご型導体を十分に冷却できないときに
は、ステータコアの特にロータと近接するティース部先
端の温度を下げることが有効となる。ステータコアの温
度が十分に低ければ、磁石あるいはかご型導体等で発生
した熱がステータコアへ逃げ、磁石あるいはかご型導体
等の加熱が防止できる。Due to such a problem, when the magnet or the cage-shaped conductor arranged in the rotor cannot be cooled sufficiently, it is effective to lower the temperature of the stator core, especially the tip of the tooth portion close to the rotor. If the temperature of the stator core is sufficiently low, the heat generated by the magnet or the cage conductor escapes to the stator core, and the heating of the magnet or the cage conductor can be prevented.
【０００６】[0006]
【発明が解決しようとしている問題点】しかしながら、
特開平４−３６４３４３号に示される冷却構造において
も、冷却液とステータコアとの接触面積は極く僅かであ
り、ステータコアの温度を十分に低下させることは困難
である。[Problems to be solved by the invention] However,
Also in the cooling structure disclosed in JP-A-4-364343, the contact area between the cooling liquid and the stator core is extremely small, and it is difficult to sufficiently reduce the temperature of the stator core.
【０００７】そこで、本発明は、ステータコアの温度を
十分に低下することのできる回転電機のステータ構造を
提供することを目的とする。Therefore, an object of the present invention is to provide a stator structure for a rotary electric machine that can sufficiently reduce the temperature of the stator core.
【０００８】[0008]
【問題点を解決するための手段】第１の発明は、ステー
タコアのティース部の周囲に絶縁体を配置し、その外側
にコイルを巻装した回転電機のステータ構造において、
前記ステータコアと絶縁体との間に隙間を設け、この隙
間に冷却液を導くようにした。According to a first aspect of the present invention, there is provided a stator structure for a rotary electric machine, wherein an insulator is arranged around a tooth portion of a stator core and a coil is wound around the insulator.
A gap is provided between the stator core and the insulator, and the cooling liquid is introduced into this gap.
【０００９】第２の発明は、第１の発明において、前記
絶縁体のうち前記ティース部の軸方向の両側面に沿って
配置した絶縁体側板と、前記ティース部側面との間に設
けた隙間に冷却液を導く冷却通路を形成した。According to a second aspect of the present invention, in the first aspect of the present invention, a gap is provided between an insulator side plate disposed along both axial sides of the tooth portion of the insulator and a side surface of the tooth portion. A cooling passage was formed to guide the cooling liquid to.
【００１０】第３の発明は、第２の発明において、前記
絶縁体側板の前記ティース部との対峙面に前記ティース
部と当接する突起部を複数形成した。In a third aspect based on the second aspect, a plurality of protrusions are formed on the surface of the insulator side plate facing the teeth portion so as to abut the teeth portion.
【００１１】第４の発明は、第２または３の発明におい
て、前記絶縁体のうち前記ティース部の軸方向端面に配
置した絶縁体端板と、前記絶縁体側板との外側にコイル
を集中巻きしてコイル部を形成し、かつこのコイル部の
先端を前記ティース部の先端よりも短く設定し、前記テ
ィース部端面側に前記冷却通路と連通する開口を形成す
る。According to a fourth aspect of the present invention, in the second or third aspect of the present invention, a coil is concentratedly wound on the outer side of the insulator end plate disposed on the axial end face of the tooth portion of the insulator and the insulator side plate. To form a coil portion, the tip of the coil portion is set shorter than the tip of the tooth portion, and an opening communicating with the cooling passage is formed on the end face side of the tooth portion.
【００１２】第５の初英は、第４の発明において、前記
絶縁体側板と前記絶縁体端板とを組み合わせて一体に形
成する。According to a fifth aspect of the present invention, in the fourth aspect, the insulator side plate and the insulator end plate are combined and integrally formed.
【００１３】第６の発明は、コイルを巻装したステータ
コアのティース部の周囲の少なくとも一部に、前記コイ
ルと前記ステータコアが非接触となるように絶縁体を配
置した回転電機のステータ構造において、前記ステータ
コアと前記コイルとの間に隙間を設け、この隙間に冷却
液を導くようにした。According to a sixth aspect of the present invention, there is provided a stator structure for a rotating electric machine, wherein an insulator is arranged at least around a tooth portion of a stator core around which a coil is wound so that the coil and the stator core are not in contact with each other. A gap is provided between the stator core and the coil, and the cooling liquid is introduced into this gap.
【００１４】第７の発明は、第６の発明において、前記
絶縁体のうち前記ティース部の軸方向端面に配置した絶
縁体端板が前記ティース部の周方向幅よりも大きくなる
ように形成した。In a seventh aspect based on the sixth aspect, the insulator end plate disposed on the end face in the axial direction of the tooth portion of the insulator is formed to be larger than the circumferential width of the tooth portion. .
【００１５】第８の発明は、第７の発明において、前記
絶縁体端板の両側に折曲部を形成し、前記ティース部の
端面に前記絶縁体端板を嵌合した。In an eighth aspect based on the seventh aspect, bent portions are formed on both sides of the insulator end plate, and the insulator end plate is fitted to the end faces of the teeth portions.
【００１６】第９の発明は、第７または８の発明におい
て、前記絶縁体端板に前記ステータコアと前記コイルの
間に形成した隙間に連通する開口を設け、冷却液を導く
冷却通路を形成した。In a ninth aspect based on the seventh or eighth aspect, the insulator end plate is provided with an opening communicating with a gap formed between the stator core and the coil, and a cooling passage for guiding a cooling liquid is formed. .
【００１７】[0017]
【作用及び効果】第１の発明によれば、ステータコアと
絶縁体の間に隙間を設け、この隙間に冷却液を導くよう
にしたので、ステータコアを直接冷却することができる
ので、ステータコアの冷却効率が向上しステータの温度
を十分に低下させることができる。According to the first aspect of the invention, since the gap is provided between the stator core and the insulator and the cooling liquid is introduced into this gap, the stator core can be directly cooled, so that the cooling efficiency of the stator core is improved. Is improved, and the temperature of the stator can be sufficiently lowered.
【００１８】第２の発明によれば、絶縁体側板とステー
タコアとの間に冷却液を導く冷却通路を形成したので、
ステータコアの冷却を促進でき、ステータの冷却効率を
さらに向上できる。According to the second aspect of the invention, since the cooling passage for guiding the cooling liquid is formed between the insulator side plate and the stator core,
The cooling of the stator core can be promoted, and the cooling efficiency of the stator can be further improved.
【００１９】第３の発明によれば、絶縁体側板のティー
ス部との対峙面にティース部と当接する突起部を複数形
成することで、コイルを巻くことにより絶縁体側板とス
テータコアの間に形成した隙間がつぶされるのを防ぎ、
その結果、冷却通路がつぶれるのを防止することができ
る。According to the third aspect of the invention, a plurality of protrusions are formed on the surface of the insulator side plate that faces the teeth portion so as to abut against the teeth, so that the coil is wound to form between the insulator side plate and the stator core. Prevents crushed gaps from being crushed,
As a result, it is possible to prevent the cooling passages from collapsing.
【００２０】第４の発明によれば、集中巻により形成し
たコイル部の先端がティース部の先端よりも短く設定さ
れ、ティース部端面側で冷却通路と連通する開口を形成
することで、積極的に冷却通路内へ冷却水を流すことが
できるので、冷却効率が向上する。According to the fourth aspect of the invention, the tip of the coil portion formed by concentrated winding is set shorter than the tip of the tooth portion, and the opening that communicates with the cooling passage is formed on the tooth end face side, thereby positively. Since the cooling water can be made to flow into the cooling passage, the cooling efficiency is improved.
【００２１】第５の発明によれば、前記絶縁体側板と前
記絶縁体端板とを組み合わせて一体に形成することで、
絶縁体を設置する作業効率が向上する。According to the fifth aspect of the invention, the insulator side plate and the insulator end plate are combined and integrally formed,
The work efficiency of installing the insulator is improved.
【００２２】第６の発明によれば、コイルとステータコ
アが非接触となるように絶縁体を配置した回転電機のス
テータ構造において、前記ステータコアとコイルとの間
に隙間を設けこの隙間に冷却液を導くようにすること
で、ステータコアを直接冷却することができるので、ス
テータコアの冷却効率が向上しステータの温度を十分に
低下させることができる。According to the sixth aspect of the invention, in the stator structure of the rotating electric machine in which the insulator is arranged so that the coil and the stator core are not in contact with each other, a gap is provided between the stator core and the coil, and the cooling liquid is filled in the gap. By guiding the stator core, the stator core can be directly cooled, so that the cooling efficiency of the stator core is improved and the temperature of the stator can be sufficiently lowered.
【００２３】第７の発明によれば、ティース部の軸方向
端面に配置した絶縁体端板がティース部の周方向幅より
も大きくなるように形成することで、ティース部側面と
コイル間に隙間を形成し冷却液を導くことができるの
で、直接ティース部の効率のよい冷却を行うことができ
る。According to the seventh aspect of the invention, the insulator end plate disposed on the axial end surface of the tooth portion is formed so as to be larger than the circumferential width of the tooth portion, so that the gap between the side surface of the tooth portion and the coil is formed. Since it is possible to form the cooling liquid and guide the cooling liquid, it is possible to directly and efficiently cool the tooth portion.
【００２４】第８の発明によれば、絶縁体端板の両側に
折曲部を形成し、ティース部の端面に前記絶縁体端板を
嵌合することで、ティース部両側面に形成した冷却通路
を確保することができる。According to the eighth aspect of the present invention, the bent portions are formed on both sides of the insulator end plate, and the insulator end plates are fitted to the end faces of the tooth portions, whereby cooling is formed on both side faces of the tooth portions. A passage can be secured.
【００２５】第９の発明によれば、前記絶縁体端板に開
口を設け、前記ティース部と前記コイルの隙間に冷却液
を導く冷却通路を形成することで、積極的に冷却液を冷
却通路に導くことができるので、冷却効率を向上するこ
とができる。According to the ninth aspect, the opening is provided in the insulator end plate and the cooling passage for guiding the cooling liquid is formed in the gap between the tooth portion and the coil, whereby the cooling liquid is positively cooled. Therefore, the cooling efficiency can be improved.
【００２６】[0026]
【発明の実施の形態】以下、添付図面に従って本発明の
第一の実施形態を説明する。ここでは、回転電機を永久
磁石式同期電動機とし、電動機の縦断面を図１に、横断
面を図２に示す。DETAILED DESCRIPTION OF THE INVENTION A first embodiment of the present invention will be described below with reference to the accompanying drawings. Here, the rotating electric machine is a permanent magnet type synchronous motor, and a vertical section of the motor is shown in FIG. 1 and a horizontal section thereof is shown in FIG.
【００２７】図１において、回転電機のケース１は、円
筒板１Ａとこの円筒板１Ａの軸方向両端の開口を閉塞す
る側板１Ｂ、１Ｃから形成する。In FIG. 1, a case 1 of a rotary electric machine is formed of a cylindrical plate 1A and side plates 1B and 1C that close openings at both axial ends of the cylindrical plate 1A.
【００２８】ケース１内に周方向に均等に永久磁石６が
配置された円柱形のロータ２を収容する。ロータ２は、
その回転軸２Ａの両端をそれぞれベアリング３を介して
側板１Ｂ、１Ｃに支持することにより、回転軸２Ａを中
心に回転自在となっている。A cylindrical rotor 2 in which permanent magnets 6 are evenly arranged in the circumferential direction is housed in a case 1. Rotor 2
By supporting both ends of the rotary shaft 2A on the side plates 1B and 1C via bearings 3, respectively, the rotary shaft 2A is rotatable about the rotary shaft 2A.
【００２９】円筒板１Ａの内周面には、円筒形のステー
タ５を、ロータ２の外周を取り囲むように配置する。ス
テータ５の内周面とロータ２の外周面との間には、ロー
タ２が回転するための所定の隙間を設ける。A cylindrical stator 5 is arranged on the inner peripheral surface of the cylindrical plate 1A so as to surround the outer periphery of the rotor 2. A predetermined gap for rotating the rotor 2 is provided between the inner peripheral surface of the stator 5 and the outer peripheral surface of the rotor 2.
【００３０】ステータ５の軸方向の両端とケース１の内
側には、環状空間からなる冷却ジャケット１０、１１を
形成する。冷却ジャケット１０には円筒板１Ａを貫通す
るオイル供給口１６を介して、冷却用オイルを供給す
る。この冷却オイルは、ステータ５内に形成された冷却
通路２９（図２参照）を流通して、反対側の冷却ジャケ
ット１１へ導かれ、冷却ジャケット１１に形成した円筒
板１Ａを貫通するオイル排出口１７から外部へ排出され
る。前記冷却ジャケット１０と１１を形成するために、
ステータ５の両端からその内周面の延長上にシール部１
４を設ける。このシール部１４は、ステータ内周面にも
ロータ２の外周との間に均一なエアギャップ２１を形成
するように形成されると共に、その両端がケース１の側
板１Ｂ，１Ｃまで達するように形成し、ケース１の円筒
板１Ａの内周とステータ５の両端との間に環状の空間を
区画形成する。At both ends of the stator 5 in the axial direction and the inside of the case 1, cooling jackets 10 and 11 formed of an annular space are formed. Cooling oil is supplied to the cooling jacket 10 through an oil supply port 16 penetrating the cylindrical plate 1A. This cooling oil flows through a cooling passage 29 (see FIG. 2) formed in the stator 5, is guided to the cooling jacket 11 on the opposite side, and an oil discharge port that penetrates the cylindrical plate 1A formed in the cooling jacket 11 It is discharged from 17 to the outside. To form the cooling jackets 10 and 11,
The seal portion 1 extends from both ends of the stator 5 on the inner peripheral surface thereof.
4 is provided. The seal portion 14 is formed so as to form a uniform air gap 21 between the inner peripheral surface of the stator and the outer periphery of the rotor 2, and both ends thereof reach the side plates 1B and 1C of the case 1. Then, an annular space is defined between the inner circumference of the cylindrical plate 1A of the case 1 and both ends of the stator 5.
【００３１】また、図２に示すように、ステータ５をス
テータコア２０と、このステータコア２０の周囲に巻装
されるコイル３０とから構成する。As shown in FIG. 2, the stator 5 is composed of a stator core 20 and a coil 30 wound around the stator core 20.
【００３２】ステータコア２０は、所定個数（本実施の
形態では１２個）の分割コア２１を円環状に連ねる分割
コア構造にて形成する。ここで、本実施形態では、ステ
ータコアを分割コアとしたが分割されていない環状のス
テータコアを用いてもよい。各分割コア２１は略Ｔ字型
の電磁鋼板をロータ２の回転軸２Ａ方向（図２の紙面に
垂直方向）に所定枚数積層して形成する。The stator core 20 is formed in a split core structure in which a predetermined number (12 in this embodiment) of split cores 21 are connected in an annular shape. Here, in the present embodiment, the stator core is a split core, but an annular stator core that is not split may be used. Each split core 21 is formed by laminating a predetermined number of substantially T-shaped electromagnetic steel plates in the direction of the rotation axis 2A of the rotor 2 (direction perpendicular to the plane of FIG. 2).
【００３３】ステータコア２０（分割コア２１）を、ケ
ース１の円筒板１Ａの内周面に沿うリング状のバックコ
ア部２２と、このバックコア部２２からステータコア２
０の内周半径方向に突出するティース部２３とから形成
する。The stator core 20 (split core 21) is composed of a ring-shaped back core portion 22 along the inner peripheral surface of the cylindrical plate 1A of the case 1, and the stator core 2 from the back core portion 22.
It is formed by a tooth portion 23 protruding in the radial direction of the inner circumference of 0.
【００３４】バックコア部２２の周方向に均等に設けら
れたティース部２３の間の凹部（溝部）をスロット２５
とする。コイル３０は各ティース部２３に集中巻きされ
ることにより、スロット２５内部に収容された状態とな
っている。このスロット２５を前記冷却ジャケット１０
からの冷却用のオイルを通す冷却通路２９とするため
に、スロット２５のロータ２の外周に面した開口部に、
開口部を閉塞するプレート４０を装着する。このプレー
ト４０の内周側を前述したシール部１４で覆い、冷却通
路２９のシール性を確保する。The recesses (grooves) between the teeth portions 23 provided evenly in the circumferential direction of the back core portion 22 are formed into the slots 25.
And The coil 30 is wound around each tooth portion 23 in a concentrated manner so that the coil 30 is accommodated in the slot 25. This slot 25 is used as the cooling jacket 10.
In order to form the cooling passage 29 through which the cooling oil from is passed, the opening of the slot 25 facing the outer periphery of the rotor 2 is
A plate 40 that closes the opening is attached. The inner peripheral side of the plate 40 is covered with the above-mentioned seal portion 14 to secure the sealing property of the cooling passage 29.
【００３５】このように冷却用のオイルを冷却通路２９
に流す際にステータコア２０を直接冷却するために、ス
テータコア２０の周囲に設置される絶縁体側板２７およ
び絶縁体端板２８を図３のように形成する。In this way, the cooling oil is supplied to the cooling passage 29.
In order to directly cool the stator core 20 when it is flowed to the inside, an insulator side plate 27 and an insulator end plate 28 installed around the stator core 20 are formed as shown in FIG.
【００３６】絶縁体側板２７および絶縁体端板２８は、
コイル３０が直接ステータコア２０に接触しないようコ
イル３０が巻き回されるステータコア２０の周囲に設置
する。ここで、絶縁体側板２７はステータコア２０の回
転軸方向の両側面を、絶縁体端板２８は回転面に平行な
ステータコア２０の両端面を覆うように配置され、コイ
ル３０とステータコア２０の直接的な接触を防いでい
る。通常、このような絶縁体側板２７および絶縁体端板
２８としては紙（絶縁紙）が使われることが多いが、本
発明では所定の断面形状を持たせるため、樹脂等で成形
した板状部材を使用する。絶縁体側板２７の回転軸方向
の長さはステータコア２０の軸方向の長さ、あるいはこ
れにエンドプレート３１の厚み分を加えた長さと等しく
なっている。The insulator side plate 27 and the insulator end plate 28 are
The coil 30 is installed around the stator core 20 around which the coil 30 is wound so that the coil 30 does not directly contact the stator core 20. Here, the insulator side plates 27 are arranged so as to cover both side faces of the stator core 20 in the rotation axis direction, and the insulator end plates 28 are arranged so as to cover both end faces of the stator core 20 which are parallel to the rotation face. It prevents the contact. In general, paper (insulating paper) is often used as the insulator side plate 27 and the insulator end plate 28, but in the present invention, a plate-shaped member formed of resin or the like in order to have a predetermined cross-sectional shape. To use. The length of the insulator side plate 27 in the rotation axis direction is equal to the length of the stator core 20 in the axial direction or the length obtained by adding the thickness of the end plate 31 thereto.
【００３７】絶縁体側板２７は、ロータ回転の径方向に
沿って延びる縦部３２と回転の周方向に沿って延びる横
部３３とからなる略Ｌ字状の断面形状を有している。縦
部３２のステータコア２０に接触する面の上下端にステ
ータコア２０に向かって突起４ａ、４ｂを形成すること
により、ティース部２３と対峙する面に凹部（隙間）３
４ａを形成する。この凹部３４ａをステータ冷却通路３
５とし、ティース部２３の側面と絶縁体側板２７との間
に冷却液を流すことでティース部２３を直接冷却する。
なお、絶縁体側板２７はティース部２３の左右に一対づ
つ配置され、ステータ冷却通路３５はティース部２３の
両側に形成される。ティース部２３を軸方向から見た時
に、絶縁体端板２８はティース部２３の端面と同一形状
とすることで、絶縁体端板２８の両側と絶縁体側板２７
との間に開口ができ冷却ジャケット１０からの冷却液の
一部がステータ冷却通路３５に流入する。The insulator side plate 27 has a substantially L-shaped cross-sectional shape composed of a vertical portion 32 extending in the radial direction of rotor rotation and a horizontal portion 33 extending in the circumferential direction of rotation. By forming the protrusions 4 a and 4 b toward the stator core 20 at the upper and lower ends of the surface of the vertical portion 32 that contacts the stator core 20, the concave portion (gap) 3 is formed on the surface facing the tooth portion 23.
4a is formed. This concave portion 34a is used as the stator cooling passage 3
5, the tooth portion 23 is directly cooled by flowing a cooling liquid between the side surface of the tooth portion 23 and the insulator side plate 27.
The insulator side plates 27 are arranged in pairs on the left and right sides of the teeth portion 23, and the stator cooling passages 35 are formed on both sides of the teeth portion 23. When the teeth portion 23 is viewed from the axial direction, the insulator end plate 28 has the same shape as the end surface of the teeth portion 23, so that both sides of the insulator end plate 28 and the insulator side plate 27 are formed.
An opening is formed between the two and a part of the cooling liquid from the cooling jacket 10 flows into the stator cooling passage 35.
【００３８】図３では、コイル３０を巻装した状態での
絶縁体側板２７の配置を分かりやすく示すために間隔を
あけてコイル３０の線材を図示しているが、コイル３０
の巻装方式を集中巻きとする場合、コイル線材間にこの
隙間はほとんど存在しない。よって、冷却液がコイル３
０の線材の間を通ってステータ冷却通路３５へ流入また
は流出することはほとんどない。In FIG. 3, the wire rods of the coil 30 are illustrated with a space therebetween in order to clearly show the arrangement of the insulator side plate 27 in the state where the coil 30 is wound.
When the winding method is concentrated winding, there is almost no gap between the coil wire rods. Therefore, the cooling liquid is the coil 3
There is almost no inflow or outflow to the stator cooling passage 35 through the zero wire.
【００３９】このため、本実施形態では、絶縁体側板２
７の縦部３２の寸法よりもティース部２３のコイル巻装
範囲の寸法を短くし、縦部３２のティース部２３の先端
側の端部が、コイル３０よりもティース部２３先端側へ
突出するように形成する。これにより、ステータ冷却通
路３５の開口部全体がコイル３０によって覆われること
がないので、ステータ冷却通路３５内の冷却液の流れが
確保でき、ステータコア２０を直接冷却液で冷却するこ
とができる。特にティース部２３の先端の温度を十分に
下げることができるので、永久磁石６で発生した熱をス
テータコア２０に逃すことができ、永久磁石６の過熱を
防止することができる。Therefore, in this embodiment, the insulator side plate 2 is
7. The dimension of the coil winding range of the tooth portion 23 is made shorter than the dimension of the vertical portion 32 of No. 7, and the end portion of the vertical portion 32 on the tip side of the tooth portion 23 projects toward the tip side of the tooth portion 23 more than the coil 30. To form. As a result, the entire opening of the stator cooling passage 35 is not covered with the coil 30, so that the flow of the cooling liquid in the stator cooling passage 35 can be secured and the stator core 20 can be directly cooled by the cooling liquid. In particular, since the temperature of the tips of the teeth portions 23 can be sufficiently lowered, the heat generated by the permanent magnet 6 can be released to the stator core 20, and the overheating of the permanent magnet 6 can be prevented.
【００４０】第２の実施形態の主としてティース部２
３、コイル３０および絶縁体側板２７の詳細を図４に示
す。第１の実施形態では、冷却液のステータ冷却通路３
５を絶縁体側板２７の縦部３２に形成したが、第２の実
施形態では横部３３に形成する。Mainly the tooth portion 2 of the second embodiment.
Details of the coil 3, the coil 30, and the insulator side plate 27 are shown in FIG. In the first embodiment, the cooling liquid stator cooling passage 3
5 is formed on the vertical portion 32 of the insulator side plate 27, it is formed on the horizontal portion 33 in the second embodiment.
【００４１】横部３３の縦部３２と接続していない方の
端にバックコア部２２側に向かって突起４ｃを形成し、
縦部３２はティース部２３の側面に密着させる。このよ
うに突起４ｃを形成することにより、絶縁体側板２７の
バックコア部２２側の面に凹部３４ｂを形成し、この凹
部３４ｂよりバックコア部２２と絶縁体側板２７の間に
隙間を設けてステータ冷却通路３６を形成する。この絶
縁体側板２７の下方からコイル３０の巻装範囲とする。
これにより、ステータコア２０を冷却液で直接冷却する
ことのできるステータ冷却通路３６を簡単な構造で形成
することができる。A protrusion 4c is formed toward the back core portion 22 at the end of the horizontal portion 33 which is not connected to the vertical portion 32,
The vertical portion 32 is brought into close contact with the side surface of the tooth portion 23. By forming the protrusion 4c in this manner, a recess 34b is formed on the surface of the insulator side plate 27 on the back core portion 22 side, and a gap is provided between the back core portion 22 and the insulator side plate 27 from the recess 34b. A stator cooling passage 36 is formed. The winding range of the coil 30 is from below the insulator side plate 27.
Accordingly, the stator cooling passage 36 that can directly cool the stator core 20 with the cooling liquid can be formed with a simple structure.
【００４２】第３の実施形態のティース部２３、コイル
３０および絶縁体側板２７の詳細を図５に示す。ここで
は、絶縁体側板２７の縦部３２及び横部３３の双方にス
テータ冷却通路３７を形成する。The details of the teeth portion 23, the coil 30, and the insulator side plate 27 of the third embodiment are shown in FIG. Here, the stator cooling passage 37 is formed in both the vertical portion 32 and the horizontal portion 33 of the insulator side plate 27.
【００４３】絶縁体側板２７の縦部３２及び横部３３の
それぞれお互いに接続していない方の端に、ティース部
２３に向けて突起４ａ、４ｃを形成する。これにより、
縦部３２及び横部３３に沿った凹部３４ｃが形成され、
この凹部３４ｃとステータコア２０のティース部２３及
びバックコア部２２との隙間をステータ冷却通路３７と
することで、ステータコア２０と冷却液の接触面積が広
くすることが可能となり、その分だけ冷却効率を向上で
きる。Protrusions 4a and 4c are formed toward the teeth portion 23 at the ends of the vertical portion 32 and the horizontal portion 33 of the insulator side plate 27 which are not connected to each other. This allows
A concave portion 34c is formed along the vertical portion 32 and the horizontal portion 33,
By using the gap between the recess 34c and the teeth portion 23 and the back core portion 22 of the stator core 20 as the stator cooling passage 37, the contact area between the stator core 20 and the cooling liquid can be increased, and the cooling efficiency can be increased accordingly. Can be improved.
【００４４】第４の実施形態のティース部２３、コイル
３０および絶縁体側板２７の詳細を図６に示す。FIG. 6 shows details of the teeth portion 23, the coil 30 and the insulator side plate 27 of the fourth embodiment.
【００４５】第４の実施形態では、第１の実施形態の絶
縁体側板２７において、ティース部２３の側面に対峙す
る縦部３２の一面に、一定間隔に複数の突起部１８を設
けた。突起部１８の高さは、突起部４ａ、４ｂと同じで
あり、本実施形態では突起部１８を上下二段に形成し、
上段と下段の隣り合う突起部１８の間隔が同じであり、
かつその間隔の半分の長さだけ水平方向にずらして形成
した。また、突起部１８の上下方向の幅は、上段・下段
を合わせても絶縁体側板２７の上下方向の幅より小さく
した。このように、突起部１８を径方向に関して連続さ
せずに所定間隔をあけて設置するので、ティース部２３
側面と絶縁体側板２７の間をステータコア２０の軸方向
に冷却液が流れを妨げることがない。In the fourth embodiment, in the insulator side plate 27 of the first embodiment, a plurality of protrusions 18 are provided at regular intervals on one surface of the vertical portion 32 facing the side surface of the tooth portion 23. The height of the protrusions 18 is the same as that of the protrusions 4a and 4b. In this embodiment, the protrusions 18 are formed in two upper and lower stages,
The distance between adjacent upper and lower protruding portions 18 is the same,
In addition, it was formed by shifting in the horizontal direction by half the distance. The vertical width of the protrusion 18 is smaller than the vertical width of the insulator side plate 27 even when the upper and lower stages are combined. In this way, since the protrusions 18 are not provided continuously in the radial direction but are installed at a predetermined interval, the teeth portion 23
The cooling liquid does not hinder the flow between the side surface and the insulator side plate 27 in the axial direction of the stator core 20.
【００４６】このように突起部１８を設けることで、コ
イル３０を巻いた時に絶縁体側板２７に設けた隙間がつ
ぶれるのを防止することができ、冷却液を確実に流すこ
とができる。突起部１８は回転軸方向に沿ってジグザグ
に、接触することなく設置する。これにより冷却液の流
れが留まることなく、直接ステータコア２０を冷却でき
る。By providing the protrusion 18 in this manner, it is possible to prevent the gap provided in the insulator side plate 27 from being collapsed when the coil 30 is wound, and it is possible to reliably flow the cooling liquid. The protrusions 18 are installed in zigzag along the direction of the rotation axis without contact. As a result, the stator core 20 can be directly cooled without stopping the flow of the cooling liquid.
【００４７】第５の実施形態のティース部２３、コイル
３０および絶縁体端板２８の詳細を図７に示す。Details of the teeth portion 23, the coil 30 and the insulator end plate 28 of the fifth embodiment are shown in FIG.
【００４８】第５の実施形態では、ステータ５両端に設
けた回転端面に平行なステータコア２０の面を覆う絶縁
体端板２８の周方向の幅を、ティース部２３の周方向の
幅よりも大きくする。これにより、コイル３０を巻いた
時に、コイル３０とティース部２３の間に隙間を確保
し、ステータコア２０が冷却液に直接漬かりステータコ
ア２０を冷やすことができる。このように形成するとコ
イル３０の巻圧はティース部２３の両端の絶縁体端板２
８で支持することができるので、絶縁体側板２７の縦部
３２を用いず、横部３３と絶縁体端板２８のみで所定の
ステータ冷却通路３５を形成できる。In the fifth embodiment, the width in the circumferential direction of the insulator end plate 28 covering the surface of the stator core 20 parallel to the rotating end faces provided at both ends of the stator 5 is larger than the width in the circumferential direction of the teeth portion 23. To do. Accordingly, when the coil 30 is wound, a gap can be secured between the coil 30 and the tooth portion 23, and the stator core 20 can be directly immersed in the cooling liquid to cool the stator core 20. When formed in this manner, the winding pressure of the coil 30 is such that the insulator end plates 2 at both ends of the tooth portion 23 are wound.
Since it can be supported by 8, the predetermined stator cooling passage 35 can be formed only by the horizontal portion 33 and the insulator end plate 28 without using the vertical portion 32 of the insulator side plate 27.
【００４９】第６の実施形態のティース部２３、コイル
３０、絶縁体側板２７および絶縁体端板２８の詳細を図
８に示す。FIG. 8 shows details of the teeth portion 23, the coil 30, the insulator side plate 27, and the insulator end plate 28 of the sixth embodiment.
【００５０】この実施形態では、図７で示す絶縁体端板
２８の両側の断面を直角に折曲し、両折曲部２８ａをス
テータコア２０のティース部２３の端部に嵌合するよう
に形成し、絶縁体端板２８をステータコア２０に固定す
る。これにより、コイル２０とステータコア２０との間
に設けたステータ冷却通路３５を所定の形状に維持する
ことができ、冷却液を確実にコイル３０とステータコア
２０の間に流し込むことができる。In this embodiment, the cross sections on both sides of the insulator end plate 28 shown in FIG. 7 are bent at a right angle, and both bent portions 28a are formed so as to be fitted to the ends of the teeth portion 23 of the stator core 20. Then, the insulator end plate 28 is fixed to the stator core 20. Thereby, the stator cooling passage 35 provided between the coil 20 and the stator core 20 can be maintained in a predetermined shape, and the cooling liquid can be surely poured between the coil 30 and the stator core 20.
【００５１】第７の実施形態のティース部２３、コイル
３０および絶縁体端板２８の詳細を図９示す。FIG. 9 shows details of the teeth portion 23, the coil 30, and the insulator end plate 28 of the seventh embodiment.
【００５２】第７の実施形態では、第６の実施形態にお
いて、ステータコア２０とコイル３０の隙間に冷却液を
流し込む一対の冷却孔１９を、周方向の幅をティース部
２３よりも大きくした絶縁体端板２８に設ける。冷却孔
１９は冷却通路３５に連通させ、ここでは、ステータコ
ア２０とコイル３０の間に流れ込みやすいように絶縁体
端板２８の周方向両端に形成する。これにより、コイル
３０とステータコア２０の間に形成した両方の隙間（ス
テータ冷却通路３５）に連通した冷却孔１９を冷却液の
入出口とすることができ、積極的に冷却液をステータ冷
却通路３５に流して、ステータコア２０の冷却性能を向
上させることができる。In the seventh embodiment, in the sixth embodiment, the pair of cooling holes 19 for injecting the cooling liquid into the gap between the stator core 20 and the coil 30 has an insulator whose circumferential width is larger than that of the teeth portion 23. It is provided on the end plate 28. The cooling holes 19 are communicated with the cooling passages 35, and are formed here at both ends in the circumferential direction of the insulator end plate 28 so as to easily flow between the stator core 20 and the coil 30. Accordingly, the cooling hole 19 communicating with both gaps (stator cooling passage 35) formed between the coil 30 and the stator core 20 can be used as an inlet / outlet of the cooling liquid, and the cooling liquid is positively fed. To improve the cooling performance of the stator core 20.
【００５３】第８の実施形態のティース部２３とコイル
３０の詳細を図１０に示す。The details of the teeth portion 23 and the coil 30 of the eighth embodiment are shown in FIG.
【００５４】第８の実施形態では、図６の絶縁体側板２
７と図９の絶縁体端板２８を組み合わせて、２つの絶縁
体４２ａ、４２ｂにより形成する。つまり、ティース部
２３の軸方向の側面の全体に突起を有した絶縁体側板２
７と、ティース部２３の軸方向両端のティース部２３よ
りも周方向に幅が広く、またステータコア２０に対する
位置決めを設けた絶縁体端板２８を一体化する。これに
より、絶縁体側板２７、絶縁体端板２８を設置するため
の作業効率を向上させると共にステータコア２０を直接
冷却液で冷やすことができる。ここで、本実施形態では
絶縁体４２ａ、４２ｂを軸方向中央部で分割したコの字
形状にしたが、絶縁体側板２７と絶縁体端板２８をそれ
ぞれ１つずつ組み合わせたＬ字形状に形成してもよい。In the eighth embodiment, the insulator side plate 2 shown in FIG. 6 is used.
7 and the insulator end plate 28 of FIG. 9 are combined to form two insulators 42a and 42b. That is, the insulator side plate 2 having protrusions on the entire axial side surface of the tooth portion 23
7 and the insulator end plate 28, which has a larger width in the circumferential direction than the tooth portions 23 at both ends in the axial direction of the tooth portion 23 and which is provided with positioning with respect to the stator core 20, are integrated. Thereby, the work efficiency for installing the insulator side plate 27 and the insulator end plate 28 can be improved, and the stator core 20 can be directly cooled by the cooling liquid. Here, in the present embodiment, the insulators 42a and 42b are formed in a U shape in which the insulators 42a and 42b are divided at the central portion in the axial direction. You may.
【００５５】なお、本実施形態では、永久磁石式同期電
動機に適用した例を示したが、誘導電動機でもＳＲモー
タでも、その他のモータにも適用できる。また、ステー
タコアを分割構造のものとしたが、一体構造のものでも
よく、さらに、回転電機を電動機としたが発電機にも適
用できる。In this embodiment, the example in which the present invention is applied to the permanent magnet type synchronous motor is shown. However, the present invention can be applied to an induction motor, an SR motor, and other motors. Further, although the stator core has a split structure, it may have an integral structure, and the rotating electric machine is an electric motor, but it can be applied to a generator.
【００５６】このように、本発明は上記実施の形態に限
定されるわけではなく、特許請求の範囲に記載の技術的
思想の範囲以内で様々な変更が成し得ることは言うまで
もない。As described above, the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made within the scope of the technical idea described in the claims.
【図１】本発明の実施形態に用いる電動機の縦断面図で
ある。FIG. 1 is a vertical sectional view of an electric motor used in an embodiment of the present invention.
【図２】本発明の実施形態に用いるステータとロータの
横断面図である。FIG. 2 is a cross-sectional view of a stator and a rotor used in the embodiment of the present invention.
【図３】第１の実施形態におけるステータコアの詳細図
である。（ａ）はティース部を端部から見た図である。
（ｂ）はティース部を側面からみた図である。（ｃ）は
ティース部の周方向の断面図である。FIG. 3 is a detailed view of a stator core according to the first embodiment. (A) is the figure which looked at the teeth part from the edge part.
(B) is the figure which saw the teeth part from the side surface. (C) is a circumferential sectional view of the tooth portion.
【図４】第２の実施形態におけるステータコアの詳細図
である。（ａ）はティース部を端部から見た図である。
（ｂ）はティース部を側面からみた図である。（ｃ）は
ティース部の周方向の断面図である。FIG. 4 is a detailed view of a stator core according to the second embodiment. (A) is the figure which looked at the teeth part from the edge part.
(B) is the figure which saw the teeth part from the side surface. (C) is a circumferential sectional view of the tooth portion.
【図５】第３の実施形態におけるステータコアの詳細図
である。（ａ）はティース部を端部から見た図である。
（ｂ）はティース部を側面からみた図である。（ｃ）は
ティース部の周方向の断面図である。FIG. 5 is a detailed view of a stator core according to the third embodiment. (A) is the figure which looked at the teeth part from the edge part.
(B) is the figure which saw the teeth part from the side surface. (C) is a circumferential sectional view of the tooth portion.
【図６】第４の実施形態における絶縁体側板の詳細図で
ある。（ａ）は絶縁体側板を端部からみた図である。
（ｂ）は絶縁体側板を側面からみた図である。FIG. 6 is a detailed view of an insulator side plate in the fourth embodiment. (A) is the figure which looked at the insulator side plate from the edge part.
(B) is the figure which looked at the insulator side plate from the side surface.
【図７】第５の実施形態におけるステータコアの詳細図
である。（ａ）はティース部を端部から見た図である。
（ｂ）はティース部を側面からみた図である。（ｃ）は
ティース部の周方向の断面図である。FIG. 7 is a detailed view of a stator core according to the fifth embodiment. (A) is the figure which looked at the teeth part from the edge part.
(B) is the figure which saw the teeth part from the side surface. (C) is a circumferential sectional view of the tooth portion.
【図８】第６の実施形態におけるステータコアの詳細図
である。（ａ）はティース部を端部から見た図である。
（ｂ）はティース部を側面からみた図である。（ｃ）は
ティース部の周方向の断面図である。FIG. 8 is a detailed view of a stator core according to the sixth embodiment. (A) is the figure which looked at the teeth part from the edge part.
(B) is the figure which saw the teeth part from the side surface. (C) is a circumferential sectional view of the tooth portion.
【図９】第７の実施形態におけるステータコアの詳細図
である。（ａ）はティース部を端部から見た図である。
（ｂ）はティース部を側面からみた図である。（ｃ）は
ティース部の周方向の断面図である。FIG. 9 is a detailed view of a stator core according to the seventh embodiment. (A) is the figure which looked at the teeth part from the edge part.
(B) is the figure which saw the teeth part from the side surface. (C) is a circumferential sectional view of the tooth portion.
【図１０】第８の実施形態におけるステータコアの詳細
図である。（ａ）はティース部を端部から見た図であ
る。（ｂ）はティース部を側面からみた図である。
（ｃ）はティース部の周方向の断面図である。FIG. 10 is a detailed view of a stator core according to the eighth embodiment. (A) is the figure which looked at the teeth part from the edge part. (B) is the figure which saw the teeth part from the side surface.
(C) is a circumferential sectional view of the tooth portion.
５ ステータ １８ 突起部 １９ 冷却液孔 ２０ ステータコア ２２ バックコア部 ２３ ティース部 ２７ 絶縁体側板 ２８ 絶縁体端板 ３０ コイル ３５ ステータ冷却通路 ３６ ステータ冷却通路 ３７ ステータ冷却通路 ４２ａ 絶縁体 ４２ｂ 絶縁体 5 Stator 18 Projection 19 Coolant hole 20 Stator core 22 Back core part 23 Teeth 27 Insulator side plate 28 Insulator end plate 30 coils 35 Stator cooling passage 36 Stator cooling passage 37 Stator cooling passage 42a insulator 42b insulator
───────────────────────────────────────────────────── フロントページの続き (72)発明者 金子 雄太郎 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 恒吉 孝 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 Ｆターム(参考） 5H002 AB01 AB04 AB08 AD06 AE07 5H603 AA13 AA14 AA15 BB01 BB02 BB08 BB09 BB12 CA01 CA05 CB01 CB03 CC07 CC11 CD21 CE02 EE12 5H604 AA03 BB01 BB09 BB10 CC01 CC05 CC14 CC16 PB03 5H609 BB03 PP02 PP06 PP07 PP08 PP09 QQ04 QQ12 RR33 RR36 RR42 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yutaro Kaneko Nissan, Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Inside the automobile corporation (72) Inventor Takashi Tsuneyoshi Nissan, Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Inside the automobile corporation F-term (reference) 5H002 AB01 AB04 AB08 AD06 AE07 5H603 AA13 AA14 AA15 BB01 BB02 BB08 BB09 BB12 CA01 CA05 CB01 CB03 CC07 CC11 CD21 CE02 EE12 5H604 AA03 BB01 BB09 BB10 CC01 CC05 CC14 CC16 PB03 5H609 BB03 PP02 PP06 PP07 PP08 PP09 QQ04 QQ12 RR33 RR36 RR42
Claims (9)
を配置し、その外側にコイルを巻装した回転電機のステ
ータ構造において、 前記ステータコアと絶縁体との間に隙間を設け、この隙
間に冷却液を導くようにしたことを特徴とする回転電機
のステータ。1. In a stator structure of a rotary electric machine, wherein an insulator is arranged around a tooth portion of a stator core, and a coil is wound around the insulator, and a gap is provided between the stator core and the insulator, and the gap is cooled. A stator for a rotary electric machine, characterized in that it is configured to guide liquid.
の両側面に沿って配置した絶縁体側板と、前記ティース
部側面との間に設けた隙間に冷却液を導く冷却通路を形
成した請求項１に記載の回転電機ステータ。2. A cooling passage for guiding a cooling liquid is formed in a gap provided between an insulator side plate disposed along both axial side surfaces of the tooth portion of the insulator and a side surface of the tooth portion. The rotating electric machine stator according to claim 1.
面に前記ティース部と当接する突起部を複数形成した請
求項２に記載の回転電機のステータ。3. The stator of a rotary electric machine according to claim 2, wherein a plurality of protrusions that abut against the teeth are formed on a surface of the insulator side plate that faces the teeth.
端面に配置した絶縁体端板と、前記絶縁体側板との外側
にコイルを集中巻きしてコイル部を形成し、かつこのコ
イル部の先端を前記ティース部の先端よりも短く設定
し、前記ティース部端面側に前記冷却通路と連通する開
口を形成する請求項２または３に記載の回転電機のステ
ータ。4. A coil portion is formed by intensively winding a coil on the outside of an insulator end plate disposed on an axial end surface of the tooth portion of the insulator and the insulator side plate, and the coil portion is formed. 4. The stator of a rotary electric machine according to claim 2, wherein a tip of the tooth portion is set shorter than a tip of the tooth portion, and an opening communicating with the cooling passage is formed on an end face side of the tooth portion.
合わせて一体に形成する請求項４に記載の回転電機のス
テータ。5. The stator for a rotary electric machine according to claim 4, wherein the insulator side plate and the insulator end plate are combined and integrally formed.
部の周囲の少なくとも一部に、前記コイルと前記ステー
タコアが非接触となるように絶縁体を配置した回転電機
のステータ構造において、 前記ステータコアと前記コイルとの間に隙間を設け、こ
の隙間に冷却液を導くようにしたことを特徴とする回転
電機のステータ。6. A stator structure for a rotating electric machine, wherein an insulator is arranged at least partially around a tooth portion of a stator core around which a coil is wound, the insulator structure being arranged so that the coil and the stator core are not in contact with each other. A stator for a rotary electric machine, characterized in that a gap is provided between the coil and the coolant, and the cooling liquid is introduced into the gap.
端面に配置した絶縁体端板が前記ティース部の周方向幅
よりも大きくなるように形成した請求項６に記載の回転
電機のステータ。7. The stator of a rotary electric machine according to claim 6, wherein an insulator end plate disposed on an axial end surface of the tooth portion of the insulator is formed to be larger than a circumferential width of the tooth portion. .
前記ティース部の端面に前記絶縁体端板を嵌合した請求
項７に記載の回転電機のステータ。8. A bent portion is formed on both sides of the insulator end plate,
The stator for a rotary electric machine according to claim 7, wherein the insulator end plate is fitted to the end surface of the tooth portion.
コイルの間に形成した隙間に連通する開口を設け、冷却
液を導く冷却通路を形成した請求項７または８に記載の
回転電機のステータ。9. The stator of a rotating electric machine according to claim 7, wherein the insulator end plate is provided with an opening communicating with a gap formed between the stator core and the coil, and a cooling passage for guiding a cooling liquid is formed. .
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001312258A JP3596510B2 (en) | 2001-10-10 | 2001-10-10 | Rotating electric machine stator |
| US10/227,920 US6933633B2 (en) | 2001-10-03 | 2002-08-27 | Rotating electric machine and cooling structure for rotating electric machine |
| EP02022207A EP1300924B1 (en) | 2001-10-03 | 2002-10-01 | Rotating electric machine and cooling structure for rotating electric machine |
| DE60221614T DE60221614T2 (en) | 2001-10-03 | 2002-10-01 | Cooling arrangement for electric lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001312258A JP3596510B2 (en) | 2001-10-10 | 2001-10-10 | Rotating electric machine stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003125548A true JP2003125548A (en) | 2003-04-25 |
| JP3596510B2 JP3596510B2 (en) | 2004-12-02 |
Family
ID=19130949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001312258A Expired - Fee Related JP3596510B2 (en) | 2001-10-03 | 2001-10-10 | Rotating electric machine stator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3596510B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006109549A (en) * | 2004-10-01 | 2006-04-20 | Hitachi Ltd | Permanent magnet dynamo-electric machine and wind force power generating system |
| JP2009207217A (en) * | 2008-02-26 | 2009-09-10 | Daikin Ind Ltd | Core for armature, armature, dynamo-electric machine, and compressor |
| JP2014108015A (en) * | 2012-11-29 | 2014-06-09 | Mitsubishi Electric Corp | Rotary electric machine |
| JP2016211417A (en) * | 2015-05-08 | 2016-12-15 | 三菱電機株式会社 | Pump and method of manufacturing pump |
| WO2019206876A1 (en) * | 2018-04-26 | 2019-10-31 | Siemens Aktiengesellschaft | Electric machine and hybrid electric aircraft |
| US10615667B2 (en) | 2016-12-05 | 2020-04-07 | Mitsubishi Electric Corporation | Rotary electric machine |
-
2001
- 2001-10-10 JP JP2001312258A patent/JP3596510B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006109549A (en) * | 2004-10-01 | 2006-04-20 | Hitachi Ltd | Permanent magnet dynamo-electric machine and wind force power generating system |
| JP4572647B2 (en) * | 2004-10-01 | 2010-11-04 | 株式会社日立製作所 | Permanent magnet rotating electrical machine and wind power generation system |
| JP2009207217A (en) * | 2008-02-26 | 2009-09-10 | Daikin Ind Ltd | Core for armature, armature, dynamo-electric machine, and compressor |
| JP2014108015A (en) * | 2012-11-29 | 2014-06-09 | Mitsubishi Electric Corp | Rotary electric machine |
| JP2016211417A (en) * | 2015-05-08 | 2016-12-15 | 三菱電機株式会社 | Pump and method of manufacturing pump |
| US10615667B2 (en) | 2016-12-05 | 2020-04-07 | Mitsubishi Electric Corporation | Rotary electric machine |
| WO2019206876A1 (en) * | 2018-04-26 | 2019-10-31 | Siemens Aktiengesellschaft | Electric machine and hybrid electric aircraft |
| US11594931B2 (en) | 2018-04-26 | 2023-02-28 | Rolls-Royce Deutschland Ltd & Co Kg | Electric machine and hybrid electric aircraft |
| US11863038B2 (en) | 2018-04-26 | 2024-01-02 | Rolls-Royce Deutschland Ltd & Co Kg | Electric machine and hybrid electric aircraft |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3596510B2 (en) | 2004-12-02 |
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