JPH06327231A - Stator of superconducting rotary electric device - Google Patents
Stator of superconducting rotary electric deviceInfo
- Publication number
- JPH06327231A JPH06327231A JP5130974A JP13097493A JPH06327231A JP H06327231 A JPH06327231 A JP H06327231A JP 5130974 A JP5130974 A JP 5130974A JP 13097493 A JP13097493 A JP 13097493A JP H06327231 A JPH06327231 A JP H06327231A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic shield
- teeth
- shaped member
- wedge
- dovetail
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、超電導回転電機の固定
子に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator of a superconducting rotating electric machine.
【０００２】[0002]
【従来の技術】超電導回転電機の固定子には、空隙巻線
構造が採用されている。これは、現用機（常電導回転電
機）の固定子と比べ、超電導回転電機の固定子の場合、
回転子の強い磁界を受けるため、現用機のように積層電
磁鋼板のティースをもつ鉄心構造とするとティース部が
飽和磁束密度に達し、過熱するためである。このため一
般的にティースの材料として絶縁物が考えられている。
空隙巻線の構造を図４を参照して説明する。１は積層電
磁鋼板でできた磁気シールドであり、その内周に絶縁テ
ィース２を用いてスロット３を形成する。スロットに電
機子巻線４を挿入しスペーサ５を電機子線巻４のまわり
に取り付けスロット楔６で電機子巻線を固定している。2. Description of the Related Art An air gap winding structure is adopted for a stator of a superconducting rotating electric machine. Compared with the stator of the current machine (normally conductive rotating electric machine), this is
This is because the strong magnetic field of the rotor causes the iron core structure to have teeth of laminated electromagnetic steel sheets as in the current machine, and the teeth reach the saturation magnetic flux density and overheat. Therefore, an insulator is generally considered as a material for the teeth.
The structure of the air gap winding will be described with reference to FIG. Reference numeral 1 is a magnetic shield made of laminated electromagnetic steel sheets, and an insulating tooth 2 is used to form a slot 3 on the inner circumference thereof. The armature winding 4 is inserted into the slot, the spacer 5 is attached around the armature winding 4, and the armature winding is fixed by the slot wedge 6.
【０００３】図４の断面Ａ−Ａを図５に示す。この図で
は、絶縁ティース２は、内周側のティース部７と外周側
のダブテール形状凸部８より構成されている。ティース
部７では各スロット内に置かれた電機子巻線４の固定を
行なっている。ダブテール形状凸部８は磁気シールド１
に絶縁ティース２を固定しており、電機子巻線４に作用
する電磁力を支持するため、ダブテール形状凸部８の外
周側端面とその端面と向い合う磁気シールド１のダブテ
ール形状凹部９の内周面との間には、断面Ｂ−Ｂつまり
図６にて示す楔10を取り付けている。この楔10は置き楔
11と打ち込み楔12より構成され、これらの楔同士の傾斜
面の傾きは同一であり、両楔の傾斜面を相合せて絶縁テ
ィース２のダブテール形状凸部８の外周側端面とそこと
相対する磁気シールド１のダブテール形状凹部９の内周
面に取り付け、打ち込み楔12を軸方向に打ち込むことに
より楔10の厚さが厚くなりダブテール形状凸部８を内周
側に押し出して磁気シールドに固定する構造となってい
る。A cross section AA of FIG. 4 is shown in FIG. In this figure, the insulating tooth 2 is composed of a tooth portion 7 on the inner peripheral side and a dovetail-shaped convex portion 8 on the outer peripheral side. In the tooth portion 7, the armature winding 4 placed in each slot is fixed. The dovetail-shaped protrusion 8 is the magnetic shield 1
Insulating teeth 2 are fixed to the armature winding 4, and in order to support the electromagnetic force acting on the armature winding 4, the outer peripheral side end face of the dovetail-shaped convex portion 8 and the inside of the dovetail-shaped concave portion 9 of the magnetic shield 1 facing the end face. A wedge 10 shown in FIG. 6 is attached between the peripheral surface and the cross section BB. This wedge 10 is a set wedge
11 and a driving wedge 12. The inclinations of the inclined surfaces of these wedges are the same, and the inclined surfaces of both wedges are combined to face the outer peripheral side end surface of the dovetail-shaped convex portion 8 of the insulating tooth 2 and the end surface. It is attached to the inner peripheral surface of the dovetail-shaped recess 9 of the magnetic shield 1, and the thickness of the wedge 10 is increased by driving the driving wedge 12 in the axial direction to push the dovetail-shaped convex portion 8 to the inner peripheral side and fix it to the magnetic shield. It has a structure.
【０００４】[0004]
【発明が解決しようとする課題】図４及び図５の構造で
は、絶縁ティース２のダブテール形状肩部が楔10により
内周側に押し出され磁気シールドに押し付けられるが、
このダブテール形状肩部が半径方向に対し傾斜してい
る。このため、電機子巻線４に作用する電磁力のスロッ
ト内での合力を半径方向電磁力Ｆr と接線方向電磁力Ｆ
θに分解すると、半径方向電磁力Ｆr は磁気シールド１
にて直接に電機子巻線４より受けるので強固であるが接
線方向電磁力Ｆθにより接線方向に到れ易いという問題
点がある。よって本発明では、接線方向の電磁力に対し
より強固に電機子巻線の固定を行い信頼性の高い超電導
回転電機の固定子を提供する。In the structure shown in FIGS. 4 and 5, the dovetail-shaped shoulder portion of the insulating tooth 2 is pushed out toward the inner peripheral side by the wedge 10 and pressed against the magnetic shield.
The dovetail-shaped shoulder is inclined with respect to the radial direction. Therefore, the resultant force of the electromagnetic force acting on the armature winding 4 in the slot is the radial electromagnetic force F r and the tangential electromagnetic force F r.
When decomposed into θ , the radial electromagnetic force F r becomes the magnetic shield 1
Since it is directly received from the armature winding 4 at, it is strong, but there is a problem that it is easy to reach in the tangential direction by the tangential electromagnetic force F θ . Therefore, the present invention provides a highly reliable stator for a superconducting rotating electric machine that more firmly fixes the armature winding against electromagnetic force in the tangential direction.
【０００５】[0005]
【課題を解決するための手段】本発明では、前述の目的
を達成するために、電磁鋼板を積層して構成し内周側に
ダブテール形状凸部を有する円筒状磁気シールドと、電
機子巻線を固定するための複数のスロットを有し、前記
磁気シールドのダブテール形状凸部と嵌合する複数のダ
ブテール形状凹部を外周側に有する扇形部材である絶縁
ティースを周方向に配設しかつ軸方向に積層して一体化
するものにおいて、前記扇形部材の凹部をスロットに対
向する部分に設けると共に、磁気シールド凸部と扇形部
材凹部の間隙に楔を打ち込んで固定するようにする。According to the present invention, in order to achieve the above-mentioned object, a cylindrical magnetic shield constituted by laminating electromagnetic steel sheets and having a dovetail-shaped convex portion on the inner peripheral side, and an armature winding. Insulating teeth, which are fan-shaped members having a plurality of slots for fixing a plurality of slots and having a plurality of dovetail-shaped recesses that fit with the dovetail-shaped projections of the magnetic shield on the outer peripheral side, are arranged in the circumferential direction and the axial direction. In this case, the concave portion of the fan-shaped member is provided in the portion facing the slot, and a wedge is driven into the gap between the magnetic shield convex portion and the concave portion of the fan-shaped member to be fixed.
【０００６】[0006]
【作用】本発明は上記のように構成されるので、扇形部
材内のティース部は扇形部材の凹部により隣接するティ
ース部と連結される様になる。このため、電機子巻線に
作用する接線方向電磁力Ｆθによるティース部の到れを
抑制出来、電機子巻線の固定が強固に出来る。尚、この
構成においては半径方向電磁力Ｆr も作用方向上に扇形
部材の凹部、楔、磁気シールドが連なるので半径方向電
磁力Ｆr を磁気シールドにてしっかり受けることが出
来、図４に示す構造の主旨を損なうことはない。Since the present invention is configured as described above, the teeth portion in the fan-shaped member is connected to the adjacent teeth portion by the recess of the fan-shaped member. Therefore, it is possible to suppress the arrival of the teeth portion due to the tangential electromagnetic force F θ acting on the armature winding, and to firmly fix the armature winding. In this structure, since the radial electromagnetic force F r is also connected to the concave portion of the fan-shaped member, the wedge, and the magnetic shield in the acting direction, the radial electromagnetic force F r can be firmly received by the magnetic shield, as shown in FIG. It does not spoil the purpose of the structure.
【０００７】[0007]
【実施例】以下本発明の一実施例について図面を参照し
て説明する。図１は本発明に係る超電導回転電機の固定
子の構造を示す横断面図である。磁気シールド１は従来
例と同様の構造で内周側にダブテール形状凸部13を有す
る。絶縁ティース14は、内周側に複数のスロット３を有
し、外周側に前記磁気シールドのダブテール形状凸部13
と嵌合する形状の複数のダブテール形状凹部15を有する
扇形部材の構造とする。この場合、ダブテール形状凹部
15を絶縁ティース14の外周側のスロット３に対向する部
分に設ける。この絶縁ティース14のダブテール形状凹部
15を磁気シールド１のダブテール凸部１３に合せて絶縁
ティース14を周方向に配設しかつ軸方向に積層して磁気
シールド１に一体化する。尚、絶縁ティース14の磁気シ
ールド１への一体化の際、磁気シールド１のダブテール
凸部13と絶縁ティース14のダブテール凹部15の間隙に軸
方向に楔を打ち込むことにより絶縁ティース14を磁気シ
ールド１に固定する。この場合の楔は複数枚構成としそ
れぞれ傾斜面を有する構造とする。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing the structure of a stator of a superconducting rotary electric machine according to the present invention. The magnetic shield 1 has the same structure as the conventional example and has a dovetail-shaped convex portion 13 on the inner peripheral side. The insulating tooth 14 has a plurality of slots 3 on the inner peripheral side, and the dovetail-shaped convex portion 13 of the magnetic shield on the outer peripheral side.
The fan-shaped member has a plurality of dovetail-shaped recesses (15) each having a shape to be fitted with. In this case, the dovetail-shaped recess
15 is provided on the outer peripheral side of the insulating tooth 14 at a portion facing the slot 3. Dovetail-shaped recess of this insulating tooth 14
15 is fitted to the dovetail protrusion 13 of the magnetic shield 1, insulating teeth 14 are arranged in the circumferential direction, and are laminated in the axial direction to be integrated with the magnetic shield 1. When the insulating teeth 14 are integrated with the magnetic shield 1, a wedge is driven in the gap between the dovetail protrusions 13 of the magnetic shield 1 and the dovetail recesses 15 of the insulating teeth 14 to move the insulating teeth 14 to the magnetic shield 1. Fixed to. In this case, the wedge is composed of a plurality of wedges, each having an inclined surface.
【０００８】図１では２枚１組の楔16を示している。In FIG. 1, two wedges 16 are shown.
【０００９】図１の構成により絶縁ティース14のティー
ス部17はダブテール形状凹部15により隣接するティース
部17と連結される。このため接線方向電磁力Ｆθによる
到れが抑制出来る。また、半径方向電磁力Ｆr も磁気シ
ールドにてしっかり受けることが出来る。これにより電
機子巻線の固定が強固に出来、信頼性の高い超電導回転
電機の固定子が構成出来る。With the structure shown in FIG. 1, the tooth portion 17 of the insulating tooth 14 is connected to the adjacent tooth portion 17 by the dovetail-shaped recess 15. Therefore, the arrival due to the tangential electromagnetic force F θ can be suppressed. Further, the radial electromagnetic force F r can be firmly received by the magnetic shield. As a result, the armature winding can be firmly fixed, and a highly reliable stator of the superconducting rotating electric machine can be configured.
【００１０】他の実施例として図２に示すように絶縁テ
ィース18はダブテール形状凹部19の外周側側面20が厚さ
方向に傾斜を付け、それ以外は図１の絶縁ティースと同
一構造とし、この外周側側面20に楔21を打ち込むことで
絶縁ティース18を磁気シールド１に固定している。この
構成により、前記図１の作用及び効果と同一の作用・効
果を得ることが出来る。As another embodiment, as shown in FIG. 2, an insulating tooth 18 has an outer peripheral side surface 20 of a dovetail-shaped concave portion 19 inclined in the thickness direction, and otherwise has the same structure as the insulating tooth of FIG. The insulating teeth 18 are fixed to the magnetic shield 1 by driving a wedge 21 into the outer peripheral side surface 20. With this configuration, it is possible to obtain the same actions and effects as the actions and effects of FIG.
【００１１】[0011]
【発明の効果】以上説明したように本発明は電機子巻線
の固定をより強固に行えるようにしたので、より信頼性
の高い超電導回転電機の固定子を提供出来る。As described above, according to the present invention, the armature winding can be fixed more firmly, so that a more reliable stator for a superconducting rotating electric machine can be provided.
【図１】本発明における超電導回転電機の固定子の一実
施例における横断面構造を示す図。FIG. 1 is a diagram showing a cross-sectional structure of an embodiment of a stator of a superconducting rotating electric machine according to the present invention.
【図２】本発明における超電導回転電機の固定子の他の
実施例における横断面構造を示す図。FIG. 2 is a diagram showing a cross-sectional structure in another embodiment of the stator of the superconducting rotating electric machine according to the present invention.
【図３】図２で示した本発明の他の実施例での断面Ｃ−
Ｃを示す図。FIG. 3 is a sectional view C- in another embodiment of the present invention shown in FIG.
The figure which shows C.
【図４】一般的な超電導回転電機の固定子の概念を示す
縦断面図。FIG. 4 is a vertical sectional view showing the concept of a stator of a general superconducting rotating electric machine.
【図５】図４の従来例としての断面Ａ−Ａを示す図。5 is a view showing a cross section AA as the conventional example of FIG.
【図６】図５の断面Ｂ−Ｂを示す図。6 is a view showing a cross section BB of FIG.
１…磁気シールド ２…絶縁ティース ３…スロット ４…電機子巻線 ５…スペーサ ６…スロット楔 ７…ティース部 ８…ダブテール形状凸部 ９…ダブテール形状凹部 10…楔 11…置き楔 12…打ち込み楔 13…ダブテール形状凸部 14…絶縁ティース 15…ダブテール形状凹部 16…楔 17…ティース部 18…絶縁ティース 19…ダブテール形状凹部 20…外周側側面 21…楔 1 ... Magnetic shield 2 ... Insulation teeth 3 ... Slot 4 ... Armature winding 5 ... Spacer 6 ... Slot wedge 7 ... Teeth part 8 ... Dovetail shape convex part 9 ... Dovetail shape concave part 10 ... Wedge 11 ... Placement wedge 12 ... Driving wedge 12 13 ... Dovetail-shaped convex portion 14 ... Insulating teeth 15 ... Dovetail-shaped concave portion 16 ... Wedge 17 ... Teeth portion 18 ... Insulating teeth 19 ... Dovetail-shaped concave portion 20 ... Outer peripheral side surface 21 ... Wedge
Claims (3)
テール形状凸部を有する円筒状磁気シールドも、電機子
巻線を挿入固定するための複数のスロットを内周側に有
し、前記磁気シールド凸部と嵌合する複数のダブテール
形状凹部を外周側に有する扇形部材を周方向に配設しか
つ軸方向に積層して一体化するものにおいて、前記扇形
部材の凹部をスロットに対向する部分に設けると共に、
磁気シールド凸部と扇形部材凹部の間隙に楔を打ち込ん
で固定することを特徴とする超電導回転電機の固定子。1. A cylindrical magnetic shield having a stack of electromagnetic steel plates and having a dovetail-shaped convex portion on the inner peripheral side also has a plurality of slots on the inner peripheral side for inserting and fixing armature windings, In a fan-shaped member having a plurality of dovetail-shaped recesses fitted to the magnetic shield projections on the outer peripheral side and arranged in the circumferential direction and stacked in the axial direction to be integrated, the recesses of the fan-shaped member are opposed to the slots. It is provided in the part to be
A stator for a superconducting rotating electric machine, characterized in that a wedge is driven into a gap between a magnetic shield convex portion and a fan-shaped member concave portion to fix the wedge.
とし、それぞれ傾斜面を設けたことを特徴とする請求項
１に記載の超電導回転電機の固定子。2. The stator for a superconducting electric rotating machine according to claim 1, wherein the wedges driven into the fitting portion gap are formed of a plurality of wedges, each having an inclined surface.
たことを特徴とする請求項１または請求項２に記載の超
電導回転電機の固定子。3. The stator for a superconducting rotary electric machine according to claim 1, wherein the concave portion of the fan-shaped member is inclined in the thickness direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5130974A JPH06327231A (en) | 1993-05-10 | 1993-05-10 | Stator of superconducting rotary electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5130974A JPH06327231A (en) | 1993-05-10 | 1993-05-10 | Stator of superconducting rotary electric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06327231A true JPH06327231A (en) | 1994-11-25 |
Family
ID=15046959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5130974A Pending JPH06327231A (en) | 1993-05-10 | 1993-05-10 | Stator of superconducting rotary electric device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06327231A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001052383A3 (en) * | 2000-01-11 | 2002-05-30 | American Superconductor Corp | Stator support system for superconducting machines |
| US6888286B2 (en) * | 2000-08-04 | 2005-05-03 | American Superconductor Corporation | Stator coil assembly for superconducting rotating machines |
| US7423356B2 (en) * | 1999-08-16 | 2008-09-09 | American Superconductor Corporation | Thermally-conductive stator support structure |
| US7619345B2 (en) | 2006-01-30 | 2009-11-17 | American Superconductor Corporation | Stator coil assembly |
-
1993
- 1993-05-10 JP JP5130974A patent/JPH06327231A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7423356B2 (en) * | 1999-08-16 | 2008-09-09 | American Superconductor Corporation | Thermally-conductive stator support structure |
| US7589441B2 (en) | 1999-08-16 | 2009-09-15 | American Superconductor Corporation | Circumferentially wound cooling tube structure for cooling a stator |
| WO2001052383A3 (en) * | 2000-01-11 | 2002-05-30 | American Superconductor Corp | Stator support system for superconducting machines |
| US6888286B2 (en) * | 2000-08-04 | 2005-05-03 | American Superconductor Corporation | Stator coil assembly for superconducting rotating machines |
| US7619345B2 (en) | 2006-01-30 | 2009-11-17 | American Superconductor Corporation | Stator coil assembly |
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