JP6345129B2 - Salient pole rotor, rotating electric machine, generator and electric motor - Google Patents

Salient pole rotor, rotating electric machine, generator and electric motor Download PDF

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JP6345129B2
JP6345129B2 JP2015015803A JP2015015803A JP6345129B2 JP 6345129 B2 JP6345129 B2 JP 6345129B2 JP 2015015803 A JP2015015803 A JP 2015015803A JP 2015015803 A JP2015015803 A JP 2015015803A JP 6345129 B2 JP6345129 B2 JP 6345129B2
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salient pole
rotor
salient
support member
pole
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JP2016144220A (en
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政人 大井手
政人 大井手
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Mitsubishi Electric Corp
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Description

この発明は、突極形回転子及び突極形回転子を備える回転電機、発電機並びに電動機に関する。   The present invention relates to a salient pole rotor and a rotating electric machine including a salient pole rotor, a generator, and an electric motor.

複数の突極を有する突極形回転子を構成する磁極鉄心の端部から、巻き線の端部が回転子の回転軸方向に突出するタイプの突極形回転子がある。このタイプの突極形回転子では、運転時に生じる遠心力で巻き線の端部が突極形回転子の半径方向外側（回転中心から遠ざかる方向）に変形しないように考慮する必要がある。巻き線の端部が変形すれば、巻き線の端部が固定子に接触して、損傷するからである。   There is a type of salient pole type rotor in which the end of the winding protrudes in the direction of the rotation axis of the rotor from the end of the magnetic pole core constituting the salient pole type rotor having a plurality of salient poles. In this type of salient pole rotor, it is necessary to consider that the end of the winding does not deform radially outward (direction away from the center of rotation) of the salient pole rotor due to centrifugal force generated during operation. This is because if the end of the winding is deformed, the end of the winding comes into contact with the stator and is damaged.

例えば、特許文献１には、積層鉄心を貫通する貫通孔に挿通されて、積層鉄心の端面から突出するコイル支持バーを備える突極形回転子が開示されていて、このコイル支持バーは「巻線ガイド絶縁部材」を支持している。「巻線ガイド絶縁部材」は巻き線の磁極鉄心の端部から突出する部位に突極形回転子の回転半径の外側から当接していて、遠心力によって生じる巻き線の端部の変形を抑制している。   For example, Patent Document 1 discloses a salient pole rotor including a coil support bar that is inserted into a through-hole penetrating a laminated iron core and protrudes from an end surface of the laminated iron core. It supports the “line guide insulating member”. The “winding guide insulation member” is in contact with the portion protruding from the end of the magnetic pole core of the winding from the outside of the rotating radius of the salient pole rotor, and suppresses deformation of the winding end caused by centrifugal force. doing.

実用新案登録第２５８６９２１号公報Utility Model Registration No. 25869921

特許文献１に開示された「巻線ガイド絶縁部材」は巻き線の磁極鉄心の端部から突出する部分に生じる遠心力に耐えられるような強度と剛性を備える必要がある。しかしながら、「巻線ガイド絶縁部材」を、このような強度と剛性を備えるように構成すれば、重量の増加や熱伝導性の低下（つまり、冷却性能の低下）を招くので、好ましくない。   The “winding guide insulating member” disclosed in Patent Document 1 needs to have strength and rigidity capable of withstanding the centrifugal force generated in the portion protruding from the end of the magnetic pole core of the winding. However, if the “winding guide insulating member” is configured to have such strength and rigidity, an increase in weight and a decrease in thermal conductivity (that is, a decrease in cooling performance) are caused.

この発明は、このような背景に基づいてなされたものであり、巻き線の磁極鉄心の端部から突出する部分の変形を防ぐことができて、簡易かつ軽量で、冷却性能に与える影響が小さい支持構造を備える突極形回転子を提供することを目的とする。また、該突極形回転子を備える回転電機、例えば発電機や電動機を提供することを目的とする。   The present invention has been made based on such a background, can prevent deformation of a portion protruding from the end of the magnetic pole core of the winding, is simple and lightweight, and has little influence on the cooling performance. An object of the present invention is to provide a salient pole rotor having a support structure. Moreover, it aims at providing a rotary electric machine provided with this salient pole type rotor, for example, a generator and an electric motor.

上記課題を解決するために、この発明に係る突極形回転子は、複数の突極を有する突極形回転子を構成する磁極鉄心の端部から、突極形回転子の回転軸方向に突出する巻き線の端部の突極形回転子の半径方向外側への変位を拘束する支持部材を備える突極形回転子であって、支持部材の基部は、隣接する突極の間の隙間に挿入されていて、隣接する突極に挟持され、更に、支持部材は基部にばね要素を備えていて、ばね要素が変形することによって生じる弾性力によって、隣接する突極に保持されるものである。 In order to solve the above-described problems, a salient pole rotor according to the present invention is provided in the direction of the rotation axis of the salient pole rotor from the end of the magnetic core that constitutes the salient pole rotor having a plurality of salient poles. A salient pole rotor including a support member that restrains the end of the projecting winding from being radially displaced by the salient pole rotor, wherein the base of the support member is a gap between adjacent salient poles. be inserted into, held between the adjacent salient poles, further, the support member is provided with a spring element to the base, by an elastic force generated by the spring element is deformed, in shall be held in the adjacent salient poles is there.

この発明によれば、巻き線の磁極鉄心の端部から突出する部分の変形を拘束する支持部材を小型で簡易に構成することができる。また、支持部材が突極形回転子の冷却性能に与える影響を小さくできる。   According to the present invention, the support member that restrains deformation of the portion protruding from the end portion of the magnetic pole core of the winding can be easily configured in a small size. In addition, the influence of the support member on the cooling performance of the salient pole rotor can be reduced.

本発明の実施形態に係る突極形回転子を備える回転磁界形同期発電機の構成を示す概念図である。It is a conceptual diagram which shows the structure of a rotating field type synchronous generator provided with the salient pole type rotor which concerns on embodiment of this invention. 本発明の実施形態に係る突極形回転子の外形を示す斜視図である。It is a perspective view which shows the external shape of the salient pole type rotor which concerns on embodiment of this invention. 図２に示した突極形回転子の側面図である。FIG. 3 is a side view of the salient pole rotor shown in FIG. 2. 図２に示した突極形回転子の縦断面図である。FIG. 3 is a longitudinal sectional view of the salient pole rotor shown in FIG. 2. 図２に示した突極形回転子を図４のＡ−Ａ’線で切断した横断面図である。FIG. 5 is a cross-sectional view of the salient pole rotor shown in FIG. 2 taken along the line A-A ′ of FIG. 4. 図２に示した突極形回転子が備えるＷ字形コイル押さえの外形を示す斜視図である。FIG. 3 is a perspective view showing an outer shape of a W-shaped coil retainer provided in the salient pole rotor shown in FIG. 2. 図６に示したＷ字形コイル押さえの作用を説明する説明図である。It is explanatory drawing explaining the effect | action of the W-shaped coil holding | suppressing shown in FIG. 支持部材の変形例を示す説明図である。It is explanatory drawing which shows the modification of a supporting member. 支持部材の変形例を示す説明図であり、（ａ）は平面図、（ｂ）は正面図である。It is explanatory drawing which shows the modification of a supporting member, (a) is a top view, (b) is a front view.

以下、この発明に係る突極形回転子及び該突極形回転子を備える回転電機の実施形態について図面を参照しながら詳細に説明する。なお、ここでは回転電機の具体例として、発電機を例示する。また、各図面においては、同一または同等の部分に同一の符号を付している。   Hereinafter, embodiments of a salient pole rotor according to the present invention and a rotating electric machine including the salient pole rotor will be described in detail with reference to the drawings. Here, a generator is illustrated as a specific example of the rotating electrical machine. Moreover, in each drawing, the same code | symbol is attached | subjected to the same or equivalent part.

図１に示すように、この発明の実施形態に係る回転磁界形同期発電機１００は、ハウジング１０１、回転軸１０２、固定子コイル１０３及び突極形回転子１を備えている。突極形回転子１には回転軸１０２が挿嵌されていて、回転軸１０２はハウジング１０１に回転自在に軸支されている。突極形回転子１の周囲には固定子コイル１０３が配置され、固定子コイル１０３はハウジング１０１に固定されている。また、回転軸１０２は動力源２０１（例えば、風水力タービン、蒸気タービン、ガスタービン、あるいはその他の内燃機関）に連結されていて、突極形回転子１は動力源２０１によって回転駆動される。また、突極形回転子１と電源回路２０２の間には図示しないスリップリング等が備えられていて、突極形回転子１にはスリップリング等を経由して電源回路２０２から界磁電流（励磁電流）が供給される。   As shown in FIG. 1, a rotating field synchronous generator 100 according to an embodiment of the present invention includes a housing 101, a rotating shaft 102, a stator coil 103, and a salient pole rotor 1. A rotary shaft 102 is inserted into the salient pole rotor 1, and the rotary shaft 102 is rotatably supported by the housing 101. A stator coil 103 is disposed around the salient pole rotor 1, and the stator coil 103 is fixed to the housing 101. The rotating shaft 102 is connected to a power source 201 (for example, a wind-hydraulic turbine, a steam turbine, a gas turbine, or other internal combustion engine), and the salient pole rotor 1 is rotationally driven by the power source 201. Further, a slip ring (not shown) is provided between the salient pole type rotor 1 and the power supply circuit 202, and the salient pole type rotor 1 has a field current (from the power supply circuit 202 via the slip ring etc.). Excitation current) is supplied.

電源回路２０２から突極形回転子１に界磁電流（励磁電流）を供給しながら、動力源２０１によって突極形回転子１が回転駆動されると、固定子コイル１０３と負荷２０３の間に電流が流れる。つまり負荷２０３に電力が供給される。   When the salient pole rotor 1 is driven to rotate by the power source 201 while supplying a field current (excitation current) from the power supply circuit 202 to the salient pole rotor 1, the stator coil 103 and the load 203 are interposed between them. Current flows. That is, power is supplied to the load 203.

図４に示すように、突極形回転子１は磁極鉄心２と磁極鉄心２に巻き回された巻き線３を備えている。磁極鉄心２は４個の突極２ａを備えている。そして、４個の突極２ａのそれぞれには巻き線３が巻き回されている。したがって、突極形回転子１は４個の巻き線３を備えている。また、磁極鉄心２の回転中心には軸穴２ｂが穿設されていて、軸穴２ｂには、前述した回転軸１０２が挿嵌されている。なお、図３及び図４に示すように、巻き線３は、その一部が磁極鉄心２の（図における）上方及び下方において、磁極鉄心２の端部から突出している。巻き線３の磁極鉄心２の端部から突出する部分、つまり、図３において、正面中央に見える突極２ａの背後に配置された巻き線３の、図３において見える部分を、本明細書においては、コイルエンド３ａと呼ぶことにする。   As shown in FIG. 4, the salient pole rotor 1 includes a magnetic pole core 2 and a winding 3 wound around the magnetic pole core 2. The magnetic core 2 has four salient poles 2a. A winding 3 is wound around each of the four salient poles 2a. Therefore, the salient pole type rotor 1 includes four windings 3. Further, a shaft hole 2b is formed at the rotation center of the magnetic core 2, and the above-described rotation shaft 102 is inserted into the shaft hole 2b. As shown in FIGS. 3 and 4, a part of the winding 3 protrudes from the end of the magnetic pole core 2 above and below (in the drawing) of the magnetic core 2. In the present specification, a portion of the winding 3 that protrudes from the end of the magnetic core 2, that is, a portion of the winding 3 that is disposed behind the salient pole 2 a that appears in the center of the front in FIG. Will be referred to as coil end 3a.

磁極鉄心２は、複数の素板を積層して構成される。素板には図４に示すような貫通穴２ｃが穿設されていて、素板を積層した後で、ボルト２ｄが挿通される。ボルト２ｄには、磁極鉄心２の両端部において、ナット２ｅを螺合される。この状態でナット２ｅを締め上げることによって、複数の素板が互いに緊結されている。つまり、磁極鉄心２は積層された複数の素板を、ボルト２ｄにナット２ｅで緊結して構成されている。なお、素板は、図示しないプレス機で鋼板を打ち抜いて形成される。   The magnetic core 2 is configured by laminating a plurality of base plates. A through-hole 2c as shown in FIG. 4 is formed in the base plate, and the bolt 2d is inserted after the base plates are stacked. Nuts 2e are screwed onto the bolts 2d at both ends of the magnetic core 2. By tightening the nut 2e in this state, the plurality of base plates are fastened together. That is, the magnetic pole core 2 is configured by binding a plurality of laminated base plates to the bolt 2d with the nut 2e. The base plate is formed by punching a steel plate with a press machine (not shown).

図２及び図４に示すように、突極２ａの内径側には内径側ガイド４、突極２ａの外径側には外径側ガイド５が、それぞれ装着されている。巻き線３は内径側ガイド４と外径側ガイド５の間に挟持されていて、巻き線３の突極形回転子１の半径方向の移動は、内径側ガイド４と外径側ガイド５によって規制されている。   As shown in FIGS. 2 and 4, an inner diameter side guide 4 is mounted on the inner diameter side of the salient pole 2a, and an outer diameter side guide 5 is mounted on the outer diameter side of the salient pole 2a. The winding 3 is sandwiched between the inner diameter side guide 4 and the outer diameter side guide 5, and the radial movement of the salient pole rotor 1 of the winding 3 is performed by the inner diameter side guide 4 and the outer diameter side guide 5. It is regulated.

図２に示すように、磁極鉄心２の高さ方向の２箇所において、隣接する突極２ａの間に、Ｌ字型コイル押さえ６が装着されている。磁極鉄心２は４個の突極２ａを備えていて、隣接する突極２ａの組は４組存在するから、磁極鉄心２には合計８個のＬ字形コイル押さえ６が装着されている。図５に示すように、Ｌ字形コイル押さえ６は横断面形においてＬ字形をなす部品であって、非磁性の金属板を折り曲げて形成される。また、Ｌ字形コイル押さえ６のＬ字形の横断面形の各辺の端部は、隣接する突極２ａのティース部２ｆの内側において、各ティース部２ｆにそれぞれ係合される。つまり、Ｌ字形コイル押さえ６は隣接する突極２ａの間で挟持される。また、Ｌ字形コイル押さえ６のＬ字形の横断面形の各辺は、隣接する突極２ａにそれぞれ巻き回された巻き線３の側面に当接する。そのため、図２における巻き線３の突極２ａに対する幅方向の移動は、Ｌ字形コイル押さえ６によって規制される。そのため、巻き線３が突極２ａに対して幅方向に移動することがない。いわゆるガタツキが生じることがない。   As shown in FIG. 2, L-shaped coil retainers 6 are mounted between adjacent salient poles 2 a at two positions in the height direction of the magnetic core 2. Since the magnetic pole core 2 includes four salient poles 2a and there are four sets of adjacent salient poles 2a, a total of eight L-shaped coil retainers 6 are mounted on the magnetic pole core 2. As shown in FIG. 5, the L-shaped coil retainer 6 is an L-shaped part in a cross-sectional shape, and is formed by bending a nonmagnetic metal plate. Moreover, the edge part of each side of the L-shaped cross-sectional shape of the L-shaped coil retainer 6 is engaged with each tooth part 2f inside the tooth part 2f of the adjacent salient pole 2a. That is, the L-shaped coil retainer 6 is sandwiched between the adjacent salient poles 2a. Each side of the L-shaped cross-sectional shape of the L-shaped coil retainer 6 abuts on the side surface of the winding 3 wound around the adjacent salient pole 2a. Therefore, the movement of the winding 3 in FIG. 2 in the width direction with respect to the salient pole 2 a is restricted by the L-shaped coil retainer 6. Therefore, the winding 3 does not move in the width direction with respect to the salient pole 2a. There is no so-called rattling.

また、図２に示すように、突極２ａのティース部２ｆには、支持バー７がそれぞれ２本ずつ取り付けられていて、ティース部２ｆを貫通している。支持バー７は磁極鉄心２の両端部に突出していて、カバー８を介して巻き線３のコイルエンド３ａに当接している。そのため、遠心力によって生じるコイルエンド３ａの突極形回転子１の外周側への変位は、コイルエンド３ａの幅方向の中央部においては、支持バー７によって規制される。   In addition, as shown in FIG. 2, two support bars 7 are attached to each of the tooth portions 2f of the salient poles 2a and pass through the tooth portions 2f. The support bar 7 protrudes from both ends of the magnetic core 2 and is in contact with the coil end 3 a of the winding 3 through the cover 8. Therefore, the displacement of the coil end 3a to the outer peripheral side of the salient pole rotor 1 caused by the centrifugal force is restricted by the support bar 7 at the center portion in the width direction of the coil end 3a.

しかしながら、支持バー７によるコイルエンド３ａの変位の規制は、コイルエンド３ａの幅方向の端部には及ばない。そこで、本実施形態においては、隣接する突極２ａの間には、磁極鉄心２の両端部に、Ｗ字形コイル押さえ９を取り付けている。つまり、Ｗ字形コイル押さえ９を使って、コイルエンド３ａの幅方向の端部におけるコイルエンド３ａの突極形回転子１の外周方向への膨らみ（回転中心から遠ざかる方向への変位）を規制している。前述したように、磁極鉄心２は４個の突極２ａを備えていて、隣接する突極２ａの組を４組備えている。そして、Ｗ字形コイル押さえ９は磁極鉄心２の上端部と下端部に装着されるから、突極形回転子１には合計８個のＷ字形コイル押さえ９が装着される。なお、Ｗ字形コイル押さえ９は、この発明の支持部材の例示である。   However, the restriction of the displacement of the coil end 3a by the support bar 7 does not reach the end of the coil end 3a in the width direction. Therefore, in the present embodiment, W-shaped coil retainers 9 are attached to both ends of the magnetic pole core 2 between the adjacent salient poles 2a. In other words, the W-shaped coil retainer 9 is used to regulate the bulging of the coil end 3a in the outer peripheral direction of the salient pole rotor 1 (displacement away from the center of rotation) at the end in the width direction of the coil end 3a. ing. As described above, the magnetic pole core 2 includes the four salient poles 2a, and includes four sets of adjacent salient poles 2a. Since the W-shaped coil retainers 9 are attached to the upper end and the lower end of the magnetic core 2, a total of eight W-shaped coil retainers 9 are attached to the salient pole rotor 1. The W-shaped coil retainer 9 is an example of the support member of the present invention.

図６に示すように、Ｗ字形コイル押さえ９は、磁極鉄心２の上端部または下端部に突出する突出部９ａと、隣接する突極２ａの間の隙間に挿入される基部９ｂを備えている。Ｗ字形コイル押さえ９は非磁性の金属板を、突出部９ａにおいてはＷ字形の横断面形をなし、基部９ｂにおいてはＬ字形の横断面形をなすように、折り曲げて形成される。また、Ｗ字形コイル押さえ９は全体として４個の平面Ａ，Ｂ，Ｃ，Ｄを備えている。Ｗ字形コイル押さえ９の突出部９ａは、４個の平面Ａ，Ｂ，Ｃ，Ｄの全てを備えている。一方、基部９ｂは平面Ｂ，Ｃだけを備えている。また、基部９ｂにおける平面Ｂ，Ｃの端部には、小凸部９ｃが形成されている。   As shown in FIG. 6, the W-shaped coil retainer 9 includes a protruding portion 9 a that protrudes from the upper end portion or the lower end portion of the magnetic core 2 and a base portion 9 b that is inserted into a gap between the adjacent salient poles 2 a. . The W-shaped coil retainer 9 is formed by bending a nonmagnetic metal plate so that the protruding portion 9a has a W-shaped cross-sectional shape and the base portion 9b has an L-shaped cross-sectional shape. The W-shaped coil retainer 9 has four planes A, B, C, and D as a whole. The protruding portion 9a of the W-shaped coil retainer 9 has all four planes A, B, C, and D. On the other hand, the base 9b has only planes B and C. Further, small convex portions 9c are formed at the ends of the planes B and C in the base portion 9b.

また、Ｗ字形コイル押さえ９の突出部９ａが備える平面Ａと平面Ｄは、コイルエンド３ａの幅方向の端部において、コイルエンド３ａの外周面に当接する。また、Ｗ字形コイル押さえ９の突出部９ａ及び基部９ｂが備える平面Ｂと平面Ｃはコイルエンド３ａの側面に当接する。   Further, the plane A and the plane D provided in the protruding portion 9a of the W-shaped coil retainer 9 are in contact with the outer peripheral surface of the coil end 3a at the end in the width direction of the coil end 3a. Further, the plane B and the plane C included in the protrusion 9a and the base 9b of the W-shaped coil retainer 9 are in contact with the side surface of the coil end 3a.

図７に示すように、磁極鉄心２にはＷ字形コイル押さえ９の小凸部９ｃが係合する小凹部２ｇが形成されている。ここで、隣接する２つの小凹部２ｇの間の隙間の大きさをＣとすると、磁極鉄心２に装着される前のＷ字形コイル押さえ９の２つの小凸部９ｃの間隔Ｄ、つまり、Ｗ字形コイル押さえ９に外力が加わっていない自然な状態における、小凸部９ｃの間隔Ｄは、Ｄ＞Ｃの関係になるように作られている。そして、Ｗ字形コイル押さえ９を磁極鉄心２に装着する際には、Ｗ字形コイル押さえ９を磁極鉄心２の上方において、隣接する突極２ａの間の隙間に宛がって、Ｗ字形コイル押さえ９をハンマーで叩く。ハンマーで叩かれたＷ字形コイル押さえ９は、平面形において「Ｗ字」の幅が狭くなるように弾性変形して、隣接する突極２ａの間の隙間に押し込まれる。そして、Ｗ字形コイル押さえ９の小凸部９ｃが突極２ａの小凹部２ｇに嵌ると、「Ｗ字」の幅は僅かに広がる。つまり弾性変形していたＷ字形コイル押さえ９は元の形状に戻ろうとする。この時に開放される弾性力によって、小凸部９ｃは突極２ａの小凹部２ｇに押し込まれる。その結果、Ｗ字形コイル押さえ９は隣接する２つの突極２ａの間で強固に挟持される。つまり、Ｗ字形コイル押さえ９は一種の板バネとして機能し、Ｗ字形コイル押さえ９自身のばね力（弾性力）によって、磁極鉄心２に強固に固定される。   As shown in FIG. 7, the magnetic core 2 is formed with a small recess 2 g that engages with the small protrusion 9 c of the W-shaped coil retainer 9. Here, if the size of the gap between two adjacent small concave portions 2g is C, the distance D between the two small convex portions 9c of the W-shaped coil retainer 9 before being attached to the magnetic core 2, ie, W The spacing D of the small convex portions 9c in a natural state where no external force is applied to the character coil retainer 9 is made to satisfy the relationship D> C. When the W-shaped coil retainer 9 is attached to the magnetic pole core 2, the W-shaped coil retainer 9 is placed above the magnetic pole core 2 into the gap between the adjacent salient poles 2a, and the W-shaped coil retainer 9 Hit 9 with a hammer. The W-shaped coil retainer 9 struck by the hammer is elastically deformed so that the width of the “W-shaped” in the planar shape becomes narrow, and is pushed into the gap between the adjacent salient poles 2a. And if the small convex part 9c of the W-shaped coil holding | suppressing 9 fits into the small recessed part 2g of the salient pole 2a, the width | variety of "W-shaped" will spread a little. That is, the W-shaped coil retainer 9 that has been elastically deformed tends to return to its original shape. The small convex part 9c is pushed into the small concave part 2g of the salient pole 2a by the elastic force released at this time. As a result, the W-shaped coil retainer 9 is firmly sandwiched between two adjacent salient poles 2a. That is, the W-shaped coil retainer 9 functions as a kind of plate spring and is firmly fixed to the magnetic core 2 by the spring force (elastic force) of the W-shaped coil retainer 9 itself.

このように、Ｗ字形コイル押さえ９は磁極鉄心２に強固に固定されているから、コイルエンド３ａに大きな遠心力が生じて、その遠心力をＷ字形コイル押さえ９が受けても、Ｗ字形コイル押さえ９が移動することはない。そのため、遠心力によって生じるコイルエンド３ａの変形は効果的に拘束される。コイルエンド３ａの突極形回転子１の外周方向への膨らみは効果的に抑制される。   Thus, since the W-shaped coil retainer 9 is firmly fixed to the magnetic core 2, even if a large centrifugal force is generated at the coil end 3a and the centrifugal force is received by the W-shaped coil retainer 9, the W-shaped coil The presser 9 does not move. Therefore, the deformation of the coil end 3a caused by the centrifugal force is effectively restrained. Swelling of the coil end 3a in the outer peripheral direction of the salient pole rotor 1 is effectively suppressed.

以上、本実施形態においては、支持部材の具体例として、Ｗ字形コイル押さえ９を例示したが、支持部材はＷ字形コイル押さえ９のようなものには限定されない。支持部材は、隣接する突極２ａの間で挟持されて、コイルエンド３ａの突極形回転子１の回転中心から遠ざかる方向への変位を拘束できる部材であれば、どのようなものであっても良い。例えば、図８に示すように、Ｗ字形コイル押さえ９の代わりに、Ｗ字形コイル押さえ９の平面Ｂ，Ｃに相当する部位を、平面形（横断面形）において、アーチ形にした支持部材１０を備えるようにしてもよい。この場合のアーチ形の部位がばねとして機能するので、支持部材１０は自身のばね力によって、磁極鉄心２に保持される。   As described above, in the present embodiment, the W-shaped coil retainer 9 is illustrated as a specific example of the support member, but the support member is not limited to the W-shaped coil retainer 9. The support member is any member as long as it is sandwiched between adjacent salient poles 2a and can restrain the displacement of the coil end 3a away from the center of rotation of the salient pole rotor 1. Also good. For example, as shown in FIG. 8, instead of the W-shaped coil retainer 9, a support member 10 in which portions corresponding to the planes B and C of the W-shaped coil retainer 9 are formed in an arch shape in a planar shape (cross-sectional shape). You may make it provide. Since the arch-shaped part in this case functions as a spring, the support member 10 is held in the magnetic core 2 by its own spring force.

あるいは、Ｗ字形コイル押さえ９の平面Ｂ，Ｃに相当する部位が、平面形（横断面形）において、連続した直線になるようにした支持部材１１を備えるようにしても良い。   Or you may make it provide the support member 11 made into the site | part corresponded to the planes B and C of the W-shaped coil holding | suppressing 9 so that it may become a continuous straight line in planar shape (cross-sectional shape).

支持部材１１の詳細な形状を図９に示す。図９（ａ）に示すように、支持部材１１は、平面形において３つの部位Ａ、Ｂ、Ｃから構成され、支持部材１１は部位Ａ，Ｃにおいてコイルエンド３ａに当接する。また、部位Ｂは部位Ａ，Ｃの間にあって、両者を連結する部位である。また図９（ｂ）に示すように、支持部材１１の突出部１１ａは部位Ａ、Ｂ、Ｃを備えている。基部１１ｂは部位Ｂだけを備えている。なお、基部１１ｂは隣接する突極２ａの間で挟持される部分である。基部１１ｂの一部は切り取られていて、２基の細長いレバー１１ｃが形成されている。レバー１１ｃは先端がテーパーされるとともに、中段部に抜け止め１１ｄが形成されている。支持部材１１はこのような形状を備えるので、基部１１ｂを突極２ａの間に挿入すると、抜け止め１１ｄが突極２ａに押されて、基部１１ｂは２基のレバー１１ｃが互いに接近する方向に、つまり両者の間隔が縮小される方向に弾性変形する。基部１１ｂを更に下方に押し下げると、抜け止め１１ｄは突極２ａの小凹部２ｇと係合する。この時、弾性変形していたレバー１１ｃが元に戻る力で、つまり、ばねの復元力で、抜け止め１１ｄが突極２ａの小凹部２ｇに押し込まれて、図９（ｂ）に示すような状態になる。抜け止め１１ｄの下部の輪郭は滑らかな曲線なので、基部１１ｂを押し下げて抜け止め１１ｄを小凹部２ｇと係合させることは容易である。一方、抜け止め１１ｄの上端の輪郭は水平に切り取られているので、基部１１ｂを引き上げて抜け止め１１ｄを小凹部２ｇから抜き出すのは容易ではない。そのため、抜け止め１１ｄを小凹部２ｇと係合させると、支持部材１１は隣接する突極２ａの間で強く挟持される。   The detailed shape of the support member 11 is shown in FIG. As shown in FIG. 9A, the support member 11 is composed of three parts A, B, and C in a planar shape, and the support member 11 contacts the coil end 3a at the parts A and C. The part B is between the parts A and C and connects the two. Further, as shown in FIG. 9B, the protruding portion 11 a of the support member 11 includes portions A, B, and C. The base 11b includes only the part B. The base portion 11b is a portion that is sandwiched between adjacent salient poles 2a. A part of the base portion 11b is cut off, and two elongated levers 11c are formed. The lever 11c has a tapered tip and a stopper 11d formed in the middle step. Since the support member 11 has such a shape, when the base portion 11b is inserted between the salient poles 2a, the stopper 11d is pushed by the salient poles 2a, and the base portion 11b moves in a direction in which the two levers 11c approach each other. That is, it elastically deforms in the direction in which the distance between them is reduced. When the base portion 11b is further pushed down, the stopper 11d engages with the small recess 2g of the salient pole 2a. At this time, the stopper 11d is pushed into the small recess 2g of the salient pole 2a by the force of returning the elastically deformed lever 11c, that is, by the restoring force of the spring, as shown in FIG. 9B. It becomes a state. Since the outline of the lower part of the retaining member 11d is a smooth curve, it is easy to push down the base 11b and engage the retaining member 11d with the small recess 2g. On the other hand, since the outline of the upper end of the stopper 11d is cut horizontally, it is not easy to pull up the stopper 11d from the small recess 2g by pulling up the base 11b. Therefore, when the stopper 11d is engaged with the small recess 2g, the support member 11 is strongly sandwiched between the adjacent salient poles 2a.

以上、この発明の実施形態と変形例を説明したが、これらは、この発明の具体的実施態様を例示するものであって、この発明の技術的範囲を画すものではない。この発明は特許請求の範囲に記述された技術的思想の限りにおいて、自由に変形、応用あるいは改良して実施することができる。   As mentioned above, although embodiment and this modification of this invention were described, these illustrate the specific embodiment of this invention, and do not delimit the technical scope of this invention. The present invention can be freely modified, applied or improved within the scope of the technical idea described in the claims.

例えば、上記実施形態では、支持部材が、「ばね」として機能する部位を備えて、つまり支持部材自身が何らかのばね要素を備えていて、そのばね要素の弾性力で支持部材を磁極鉄心に固定する例を示したが、支持部材はそのように構成されたものには限定されない。「ばね」として機能する部位は、支持部材とは物理的に分離されていても良い。つまり、ばね要素は支持部材とは別部品であっても良い。また、支持部材を磁極鉄心に固定する手段はばね要素の弾性力を利用するものには限定されない。例えば、支持部材と磁極鉄心との間の摩擦力を利用するものであっても良い。摩擦力を発生させるために、支持部材と磁極鉄心以外の別部品、例えば、楔として機能する別部品を備えても良い。   For example, in the above embodiment, the support member includes a portion functioning as a “spring”, that is, the support member itself includes some spring element, and the support member is fixed to the magnetic core by the elastic force of the spring element. Although an example has been shown, the supporting member is not limited to that configured as such. The portion functioning as the “spring” may be physically separated from the support member. That is, the spring element may be a separate component from the support member. Further, the means for fixing the support member to the magnetic pole core is not limited to the one using the elastic force of the spring element. For example, a frictional force between the support member and the magnetic pole core may be used. In order to generate the frictional force, another part other than the support member and the magnetic pole core, for example, another part that functions as a wedge may be provided.

上記実施形態において、突極形回転子を備える回転電機の具体例として、回転磁界形同期発電機を例示したが、この発明に係る回転電機は発電機には限定されない。電動機であっても良い。また回転電機は同期機には限定されない。誘導機や直流機であっても良い。   In the above embodiment, the rotating magnetic field type synchronous generator is illustrated as a specific example of the rotating electrical machine including the salient pole rotor, but the rotating electrical machine according to the present invention is not limited to the generator. An electric motor may be used. The rotating electric machine is not limited to a synchronous machine. An induction machine or a DC machine may be used.

また、上記実施形態においては、４個の突極２ａを備える磁極鉄心２を例示したが、この発明に係る突極形回転子は、このようなものには限定されない。突極２ａを２個備えていても良いし、６個以上の突極２ａを備えていても良い。また、図５に示した磁極鉄心２の横断面形状も例示に過ぎない。また、この発明に係る突極形回転子の磁極鉄心は、積層された素板をボルト２ｄとナット２ｅで緊結してなるものには、限定されない。素板は、カシメ加工、溶接、接着等の手段で結合されていても良い。   Moreover, in the said embodiment, although the magnetic pole core 2 provided with the four salient poles 2a was illustrated, the salient pole type rotor which concerns on this invention is not limited to such a thing. Two salient poles 2a may be provided, or six or more salient poles 2a may be provided. Moreover, the cross-sectional shape of the magnetic pole core 2 shown in FIG. 5 is merely an example. In addition, the magnetic core of the salient pole rotor according to the present invention is not limited to one in which the laminated base plates are fastened with bolts 2d and nuts 2e. The base plates may be joined by means such as caulking, welding, and adhesion.

上記実施形態で示した支持バー７は、この発明に係る突極形回転子において、必須の構成要素ではない。例えば、Ｗ字形コイル押さえ９の寸法を拡大して、コイルエンド３ａのＷ字形コイル押さえ９で支持される範囲を広げて、支持バー７を省くようにしても良い。また、Ｌ字形コイル押さえ６も必須の構成要素ではない。省くこともできるし、他の部品で置き換えることもできる。   The support bar 7 shown in the above embodiment is not an essential component in the salient pole rotor according to the present invention. For example, the support bar 7 may be omitted by enlarging the dimension of the W-shaped coil retainer 9 to expand the range supported by the W-shaped coil retainer 9 of the coil end 3a. Further, the L-shaped coil retainer 6 is not an essential component. It can be omitted or replaced with other parts.

上記実施形態では、回転磁界形同期発電機１００において、回転軸１０２を突極形回転子１と同格の別部品として説明したが、この発明に係る突極形回転子は回転軸を構成要素に含まないものには限定されない。また、電源回路２０２を回転磁界形同期発電機１００の外部に配置した例を示したが、電源回路２０２は回転磁界形同期発電機１００の内部にあっても良い。つまり、電源回路２０２は回転磁界形同期発電機１００の構成要素であっても良い。   In the above embodiment, in the rotating field type synchronous generator 100, the rotating shaft 102 has been described as a separate part equivalent to the salient pole rotor 1, but the salient pole rotor according to the present invention has the rotating shaft as a component. It is not limited to what is not included. Moreover, although the example which has arrange | positioned the power supply circuit 202 outside the rotating field type synchronous generator 100 was shown, the power supply circuit 202 may be inside the rotating field type synchronous generator 100. That is, the power supply circuit 202 may be a component of the rotating field type synchronous generator 100.

１ 突極形回転子、２ 磁極鉄心、２ａ 突極、２ｂ 軸穴、２ｃ 貫通穴、２ｄ ボルト、２ｅ ナット、２ｆ ティース部、２ｇ 小凹部、３ 巻き線、３ａ コイルエンド、４ 内径側ガイド、５ 外径側ガイド、６ Ｌ字形コイル押さえ、７ 支持バー、８ カバー、９ Ｗ字形コイル押さえ、９ａ 突出部、９ｂ 基部、９ｃ 小凸部、１０ 支持部材、１１ 支持部材、１１ａ 突出部、１１ｂ 基部、１１ｃ レバー、１１ｄ 抜け止め、１００ 回転磁界形同期発電機、１０１ ハウジング、１０２ 回転軸、１０３ 固定子コイル、２０１ 動力源、２０２ 電源回路、２０３ 負荷   1 salient pole rotor, 2 magnetic pole core, 2a salient pole, 2b shaft hole, 2c through hole, 2d bolt, 2e nut, 2f tooth part, 2g small recess, 3 winding, 3a coil end, 4 inner diameter side guide, 5 outer diameter side guide, 6 L-shaped coil retainer, 7 support bar, 8 cover, 9 W-shaped coil retainer, 9a protrusion, 9b base, 9c small protrusion, 10 support member, 11 support member, 11a protrusion, 11b Base, 11c lever, 11d retaining, 100 rotating magnetic field synchronous generator, 101 housing, 102 rotating shaft, 103 stator coil, 201 power source, 202 power supply circuit, 203 load

Claims (7)

複数の突極を有する突極形回転子を構成する磁極鉄心の端部から、前記突極形回転子の回転軸方向に突出する巻き線の端部の前記突極形回転子の半径方向外側への変位を拘束する支持部材を備える突極形回転子であって、
前記支持部材の基部は、隣接する突極の間の隙間に挿入されていて、前記隣接する突極に挟持され、
更に、前記支持部材は前記基部にばね要素を備えていて、前記ばね要素が変形することによって生じる弾性力によって、前記隣接する突極に保持される
突極形回転子。 A radially outer side of the salient pole-shaped rotor at an end of a winding projecting in the direction of the rotation axis of the salient pole-shaped rotor from an end of the magnetic pole core constituting the salient pole-shaped rotor having a plurality of salient poles A salient pole rotor including a support member for restraining displacement to
The base of the support member is inserted in a gap between adjacent salient poles, and is sandwiched between the adjacent salient poles,
Furthermore, the support member has a spring element at the base, and is held by the adjacent salient pole by an elastic force generated by the deformation of the spring element.
Salient pole rotor . 前記支持部材の基部は、前記突極形回転子の横断面形において、折り曲げられた部位を有していて、前記折り曲げられた部位が広がろうとする弾性力によって、前記隣接する突極に当接する方向に変位する
請求項１に記載の突極形回転子。 The base portion of the support member has a bent portion in the cross-sectional shape of the salient pole rotor, and the bent portion contacts the adjacent salient pole by an elastic force that causes the bent portion to expand. The salient pole rotor according to claim 1 , wherein the salient pole rotor is displaced in a contact direction. 複数の突極を有する突極形回転子を構成する磁極鉄心の端部から、前記突極形回転子の回転軸方向に突出する巻き線の端部の前記突極形回転子の半径方向外側への変位を拘束する支持部材を備える突極形回転子であって、
前記支持部材の基部は、隣接する突極の間の隙間に挿入されていて、前記隣接する突極に挟持されるとともに、
前記支持部材は、前記突極形回転子の横断面形において、Ｗ字形をなしていて、
前記Ｗ字形の横断面形の２辺は、一方の突極に巻き回された巻き線に接し、
前記Ｗ字形の横断面形の他の２辺は、他方の突極に巻き回された巻き線に接している
突極形回転子。 A radially outer side of the salient pole-shaped rotor at an end of a winding projecting in the direction of the rotation axis of the salient pole-shaped rotor from an end of the magnetic pole core constituting the salient pole-shaped rotor having a plurality of salient poles A salient pole rotor including a support member for restraining displacement to
The base portion of the support member is inserted into a gap between adjacent salient poles, and is sandwiched between the adjacent salient poles.
The support member has a W shape in a cross-sectional shape of the salient pole rotor,
The two sides of the W-shaped cross-sectional shape are in contact with a winding wound around one salient pole,
Another two sides of the cross-sectional shape of the W-shape is in contact with the windings wound on the salient poles of the other hand
Collision-pole rotor. 前記支持部材の基部に凸部を備えるとともに、前記磁極鉄心に前記凸部と嵌合する凹部を備える
請求項２又は請求項３に記載の突極形回転子。 The provided with a protrusion at the base of the support member, the salient pole type rotor according to claim 2 or claim 3 comprising a recess for mating with the protrusion on the magnetic pole cores. 請求項１から請求項４のいずれか一項に記載の突極形回転子を備える回転電機。 A rotary electric machine comprising the salient pole rotor according to any one of claims 1 to 4 . 請求項１から請求項４のいずれか一項に記載の突極形回転子を備える発電機。 A generator provided with the salient pole type rotor according to any one of claims 1 to 4 . 請求項１から請求項４のいずれか一項に記載の突極形回転子を備える電動機。

An electric motor comprising the salient pole rotor according to any one of claims 1 to 4 .

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