JPH11299142A - Structure for supporting rotor coil of salient-pole synchronous machine - Google Patents
Structure for supporting rotor coil of salient-pole synchronous machineInfo
- Publication number
- JPH11299142A JPH11299142A JP10846498A JP10846498A JPH11299142A JP H11299142 A JPH11299142 A JP H11299142A JP 10846498 A JP10846498 A JP 10846498A JP 10846498 A JP10846498 A JP 10846498A JP H11299142 A JPH11299142 A JP H11299142A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- field core
- rotor
- synchronous machine
- salient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、突極形同期機の回
転子、詳しくは、突極形同期機の回転子コイル支え構造
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotor for a salient-pole synchronous machine, and more particularly to a rotor coil supporting structure for a salient-pole synchronous machine.
【０００２】[0002]
【従来の技術】まず、従来の突極形同期機の回転子の構
造について図５を参照して説明する。同図５において、
回転子コイル３は界磁鉄心２に巻装されている。コイル
支え棒６は界磁鉄心２を軸方向に貫通している。コイル
支え棒６のうち、界磁鉄心２から軸方向に突出している
部分は、回転子コイル３のコイルエンド部４の上面に当
接して、遠心力が作用するコイルエンド部４を支えてい
る。2. Description of the Related Art First, the structure of a rotor of a conventional salient-pole synchronous machine will be described with reference to FIG. In FIG.
The rotor coil 3 is wound around the field iron core 2. The coil support rod 6 passes through the field iron core 2 in the axial direction. A portion of the coil support rod 6 projecting in the axial direction from the field core 2 abuts on the upper surface of the coil end portion 4 of the rotor coil 3 to support the coil end portion 4 on which centrifugal force acts. .
【０００３】[0003]
【発明が解決しようとする課題】ところが、図５に示す
突極形同期機の回転子の磁極部の構造は、突極形同期機
のコイルエンド部４に加わる遠心力を支えるため、従
来、界磁鉄心２の貫通穴へ矩形のコイル支え棒６を通し
て支えているが、大形機ではコイルエンド部４の遠心力
が大きくなり、支えることが困難であるという問題があ
った（先行技術として、特開平９−２２４３４３号公
報、実公平７−４２２０５号公報を参照）。又、図６及
び図７に示すような問題があった。図６は図５に示す回
転子コイル支え構造の一つの作用を示すもので、（Ａ）
は部分断面正面図、（Ｂ）は（Ａ）の断面側面図、図７
は図５に示す回転子コイル支え構造の別の作用を示すも
ので、（Ａ）は部分断面正面図、（Ｂ）は（Ａ）の断面
側面図である。まず、図６に示す回転子のコイル支え構
造の一つの作用について、コイル支え棒６は、コイルエ
ンド部４の遠心力によって曲げ変形を受け、その結果、
界磁鉄心２の積み重ね端部に加わる集中荷重が大きくな
るという問題があった。又、図７に示す回転子のコイル
支え構造の別の作用について、コイルエンド部４の遠心
力を支えるためのコイル支え棒６を界磁鉄心２の内部へ
挿入すると、コイル支え棒６の上方の界磁鉄心２のＡ部
の長さａが小さくなり、界磁鉄心２に加わる応力が増大
してＡ部から破断する危険性があるという問題があっ
た。However, the structure of the magnetic pole portion of the rotor of the salient-pole synchronous machine shown in FIG. 5 supports centrifugal force applied to the coil end portion 4 of the salient-pole synchronous machine. Although the rectangular coil supporting rod 6 is supported in the through hole of the field core 2 through a rectangular coil supporting rod, there is a problem that the centrifugal force of the coil end portion 4 is increased in a large-sized machine and it is difficult to support the coil end 4 (as prior art). And JP-A-9-224343 and JP-B-7-42205. Further, there is a problem as shown in FIGS. FIG. 6 shows one operation of the rotor coil supporting structure shown in FIG.
7 is a partial cross-sectional front view, FIG. 7B is a cross-sectional side view of FIG.
5A and 5B show another operation of the rotor coil supporting structure shown in FIG. 5, wherein FIG. 6A is a partial sectional front view, and FIG. 6B is a sectional side view of FIG. First, regarding one operation of the coil supporting structure of the rotor shown in FIG. 6, the coil supporting rod 6 undergoes bending deformation due to the centrifugal force of the coil end portion 4, and as a result,
There is a problem that the concentrated load applied to the stacked ends of the field cores 2 increases. Further, regarding another operation of the coil supporting structure of the rotor shown in FIG. 7, when the coil supporting rod 6 for supporting the centrifugal force of the coil end portion 4 is inserted into the inside of the field core 2, Thus, there is a problem that the length a of the portion A of the field iron core 2 becomes small, the stress applied to the field iron core 2 increases, and there is a risk of breaking from the portion A.
【０００４】又、図８に示すような問題があった。図８
は、従来の突極形同期機の回転子コイル支え構造につい
て、（イ）は第１構造例を示すもので、（Ａ）は部分断
面正面図、（Ｂ）は（Ａ）の断面側面図、（ロ）は第２
構造例を示すもので、（Ａ）は部分断面正面図、（Ｂ）
は（Ａ）の断面側面図である。図８において、１４はコ
イルエンド部、１６はコイル支え板である。図８に示す
従来の（イ）（ロ）の構造の作用について、コイルエン
ド部の表面と空気との接触面積が小さくコイルの冷却上
効果的でないという問題があった。Further, there is a problem as shown in FIG. FIG.
(A) shows a first structural example of a rotor coil supporting structure of a conventional salient-pole synchronous machine, (A) is a partial sectional front view, and (B) is a sectional side view of (A). , (B) is the second
(A) is a partial cross-sectional front view, and (B) shows a structural example.
FIG. 4 is a cross-sectional side view of FIG. In FIG. 8, reference numeral 14 denotes a coil end portion, and 16 denotes a coil support plate. Regarding the operation of the conventional structures (a) and (b) shown in FIG. 8, there is a problem that the contact area between the surface of the coil end portion and the air is so small that it is not effective in cooling the coil.
【０００５】[0005]
【課題を解決するための手段】本発明は、上述の問題を
解決し、まず、図６に示されるような突極形同期機の界
磁鉄心の端部に加わる集中荷重の最大値を低減させるた
めに、請求項１に対応する第１の発明として、界磁鉄心
と、この界磁鉄心に巻装された回転子コイルと、前記界
磁鉄心を軸方向に貫通して配置され且つ前記界磁鉄心か
ら軸方向に突出した部分がコイルエンド部の上面に当接
しているコイル支え棒とを備えた突極形同期機の回転子
において、前記コイル支え棒は、前記界磁鉄心の内部を
貫通している部分の縦方向寸法をＡ2、 前記界磁鉄心の
外部に突出している部分の縦方向寸法をＡ1として、 Ａ1＜Ａ2 とした突極形同期機の回転子コイル支え構造を提供し、
つぎに、図７に示されるようなＡ部の界磁鉄心に加わる
応力を低減させるために、請求項２に対応する第２の発
明として、界磁鉄心と、この界磁鉄心に巻装された回転
子コイルと、前記界磁鉄心を軸方向に貫通して配置され
且つ前記界磁鉄心から軸方向に突出した部分がコイルエ
ンド部の上面に当接しているコイル支え棒とを備えた突
極形同期機の回転子において、前記コイル支え棒は、前
記界磁鉄心の内部を貫通している部分の断面形状を逆Ｔ
字形とした突極形同期機の回転子コイル支え構造を提供
しようとするものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and first reduces the maximum value of the concentrated load applied to the end of the field core of the salient-pole synchronous machine as shown in FIG. According to a first aspect of the present invention, a field core, a rotor coil wound around the field core, and the field core are disposed so as to penetrate the field core in the axial direction, and In a rotor of a salient pole type synchronous machine including a coil supporting rod having a portion projecting in the axial direction from the field core in contact with the upper surface of the coil end portion, the coil supporting rod is provided inside the field iron core. a 2 a longitudinal dimension of a portion extending through said field core of the longitudinal dimension of the portion protruding to the outside as a 1, a 1 <rotor coil of a 2 and the salient pole type synchronous motor Provide support structure,
Next, in order to reduce the stress applied to the field core of the portion A as shown in FIG. 7, as a second invention corresponding to claim 2, the field core and the field core are wound around the field core. And a coil support rod disposed so as to penetrate the field iron core in the axial direction and having a portion axially protruding from the field iron core abutting on the upper surface of the coil end portion. In the rotor of the polar synchronous machine, the coil support bar has a cross section of a portion penetrating through the field iron core having an inverted T shape.
An object of the present invention is to provide a rotor coil support structure for a salient pole type synchronous machine having a V-shape.
【０００６】[0006]
【発明の実施の形態】以下、発明の実施の形態について
図１乃至図４を参照し説明する。図１は、本発明による
突極形同期機の回転子コイル支え構造の第１の実施の形
態を示すもので、（Ａ）は部分断面正面図、（Ｂ）は
（Ａ）の断面側面図、図２は、図１の回転子コイル支え
構造の作用を示す説明図、図３は、本発明による突極形
同期機の回転子コイル支え構造の第２の実施の形態を示
すもので、（Ａ）は部分断面正面図、（Ｂ）は（Ａ）の
断面側面図、図４は、図３の回転子コイル支え構造の作
用を説明するもので、（Ａ）は部分断面正面図、（Ｂ）
は（Ａ）の断面側面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. 1A and 1B show a first embodiment of a rotor coil support structure of a salient pole type synchronous machine according to the present invention, wherein FIG. 1A is a partial sectional front view, and FIG. 1B is a sectional side view of FIG. FIG. 2 is an explanatory view showing the operation of the rotor coil supporting structure of FIG. 1, and FIG. 3 shows a second embodiment of the rotor coil supporting structure of the salient pole type synchronous machine according to the present invention. (A) is a partial cross-sectional front view, (B) is a cross-sectional side view of (A), FIG. 4 is a view for explaining the operation of the rotor coil support structure of FIG. 3, (A) is a partial cross-sectional front view, (B)
FIG. 4 is a cross-sectional side view of FIG.
【０００７】第１の実施の形態：まず、第１の発明に係
る突極形同期機の回転子コイル支え構造の第１の実施の
形態については、図１及び図２を参照して、界磁鉄心１
２と、この界磁鉄心１２に巻装された回転子コイル１３
と、前記界磁鉄心１２を軸方向に貫通して配置され且つ
前記界磁鉄心１２から軸方向に突出した部分がコイルエ
ンド部１４の上面に当接しているコイル支え棒１５とを
備えた突極形同期機の回転子において、前記コイル支え
棒１５は、前記界磁鉄心１２の内部を貫通している部分
の縦方向寸法をＡ2、 前記界磁鉄心１２の外部に突出し
ている部分の縦方向寸法をＡ1として、 Ａ1＜Ａ2 としたものであり、図２において、コイル支え棒１５の
寸法を、Ａ1＜Ａ2とすることにより、コイルエンド部１
４の遠心力による界磁鉄心１２の内部でのコイル支え棒
１５の曲げ剛性を界磁鉄心１２の外部での曲げ剛性より
大きくする。これにより、界磁鉄心１２の内部でのコイ
ル支え棒１５の曲げ変形が減少し、このため、界磁鉄心
１２の積み重ね端部に加わる集中荷重を、ａ→ｂ へ低
減できる。即ち、界磁鉄心１２及びコイル支え棒１５が
従来より多くの遠心力を支えることができるため、コイ
ル巻線量及び回転子全体の直径を増加させることがで
き、この構造による同期機を大形化できる。つまり、コ
イル支え棒を大きくすればする程、界磁々束の流れに乱
れを生じることが考えられるのである（特開平９−２２
４３４３号公報に開示）が、本願のものは、このデメリ
ットを生じつつもコイル支え棒１５の端部に加わる集中
荷重の減少のメリットが大である点に特異性がある。特
に、大形機において効果大となる。First Embodiment: First, a first embodiment of a rotor coil support structure of a salient pole synchronous machine according to the first invention will be described with reference to FIGS. Magnetic core 1
2 and a rotor coil 13 wound around the field core 12
And a coil support rod 15 disposed axially through the field core 12 and having a portion projecting in the axial direction from the field core 12 in contact with the upper surface of the coil end portion 14. In the rotor of the polar synchronous machine, the coil support rod 15 has a vertical dimension of a portion penetrating the inside of the field core 12 in A 2 , and a portion protruding outside the field core 12. the longitudinal dimension as a 1, is obtained by the a 1 <a 2, in FIG. 2, the dimensions of the coil support bars 15, by an a 1 <a 2, the coil end portions 1
The bending rigidity of the coil support rod 15 inside the field iron core 12 due to the centrifugal force of 4 is made larger than the bending rigidity outside the field iron core 12. Thereby, the bending deformation of the coil support rod 15 inside the field core 12 is reduced, so that the concentrated load applied to the stacked ends of the field core 12 can be reduced from a → b. That is, since the field core 12 and the coil supporting rod 15 can support more centrifugal force than before, the amount of coil winding and the diameter of the entire rotor can be increased, and the synchronous machine having this structure can be increased in size. it can. In other words, it is conceivable that the larger the coil support rod, the more the flow of the field flux is disturbed.
No. 4343), the present application is unique in that the disadvantage of reducing the concentrated load applied to the end of the coil support rod 15 is great while the disadvantage is generated. In particular, the effect is large in a large machine.
【０００８】第２の実施の形態：つぎに、第２の発明に
係る突極形同期機の回転子コイル支え構造の第２の実施
の形態については、図３及び図４を参照して、界磁鉄心
１２と、この界磁鉄心１２に巻装された回転子コイル１
３と、前記界磁鉄心１２を軸方向に貫通して配置され且
つ前記界磁鉄心１２から軸方向に突出した部分がコイル
エンド部１４の上面に当接しているコイル支え棒１５と
を備えた突極形同期機の回転子において、前記コイル支
え棒１５は、前記界磁鉄心１２の内部を貫通している部
分の断面形状を逆Ｔ字形としたものであり、界磁鉄心１
２の内部でのコイル支え棒１５の形状を逆Ｔ字形にする
ことにより、界磁鉄心１２に加わる応力を低減し、コイ
ル支え棒１５がより多くのコイルエンド部１４の遠心力
を支えることができ、同期機を大形化することができ
る。即ち、図７を参照して、従来の矩形のコイル支え棒
６の形状では、コイル支え棒６に加わる荷重が総てＡ部
に加わっていたが、コイル支え棒６の上方の界磁鉄心２
のＡ部の寸法ａが小さくなり易いため大きな荷重を支え
ることができなかったが、本発明の構造は、図３及び図
４を参照して、コイル支え棒１５の断面形状を逆Ｔ字形
にしたため、Ｂ部でコイルエンド部１４の遠心力を支え
ることができ、大きな荷重を支えることができる。この
コイル支え棒は、図３及び図４に示すものは３本使用の
例であるが、通常は１本〜５本程度を使用する。Second Embodiment Next, a second embodiment of the rotor coil supporting structure of the salient pole type synchronous machine according to the second invention will be described with reference to FIGS. Field core 12 and rotor coil 1 wound around field core 12
3 and a coil support rod 15 that is disposed so as to penetrate the field core 12 in the axial direction and that protrudes from the field core 12 in the axial direction and abuts on the upper surface of the coil end portion 14. In the rotor of the salient-pole synchronous machine, the coil support rod 15 has an inverted T-shaped cross section at a portion penetrating the inside of the field core 12.
By making the shape of the coil supporting rod 15 inside the 2 into an inverted T shape, the stress applied to the field iron core 12 is reduced, and the coil supporting rod 15 can support more centrifugal force of the coil end portion 14. The size of the synchronous machine can be increased. That is, referring to FIG. 7, in the shape of the conventional rectangular coil support rod 6, all loads applied to the coil support rod 6 are applied to the portion A, but the field iron core 2 above the coil support rod 6.
Although a large load could not be supported because the dimension a of the portion A was easily reduced, the structure of the present invention, as shown in FIGS. Therefore, the centrifugal force of the coil end portion 14 can be supported by the portion B, and a large load can be supported. The coil support rod shown in FIGS. 3 and 4 is an example in which three coils are used, but usually one to five rods are used.
【０００９】[0009]
【発明の効果】本発明による突極形同期機の回転子コイ
ル支え構造は、上述のように構成されているので、この
構造を大形機へ採用することにより同期機の小形化、軽
量化が可能である。又、本願のものは、コイルエンド部
の表面と空気との接触面積が、図８に示すような従来の
（イ）（ロ）の構造のものに比べて大きくなり、コイル
の冷却上効果的である。Since the rotor coil supporting structure of the salient pole type synchronous machine according to the present invention is constructed as described above, it is possible to reduce the size and weight of the synchronous machine by adopting this structure for a large machine. Is possible. Further, in the case of the present application, the contact area between the surface of the coil end portion and air is larger than that of the conventional structure shown in FIGS. 8A and 8B, which is effective in cooling the coil. It is.
【図１】本発明による突極形同期機の回転子コイル支え
構造の第１の実施の形態を示すもので、（Ａ）は部分断
面正面図、（Ｂ）は（Ａ）の断面側面図である。1A and 1B show a first embodiment of a rotor coil supporting structure of a salient pole type synchronous machine according to the present invention, wherein FIG. 1A is a partial sectional front view, and FIG. 1B is a sectional side view of FIG. It is.
【図２】図１の回転子コイル支え構造の作用を示す説明
図である。FIG. 2 is an explanatory view showing the operation of the rotor coil support structure of FIG.
【図３】本発明による突極形同期機の回転子コイル支え
構造の第２の実施の形態を示すもので、（Ａ）は部分断
面正面図、（Ｂ）は（Ａ）の断面側面図である。3A and 3B show a second embodiment of a rotor coil supporting structure of a salient pole type synchronous machine according to the present invention, wherein FIG. 3A is a partial sectional front view, and FIG. 3B is a sectional side view of FIG. It is.
【図４】図３の回転子コイル支え構造の作用を説明する
もので、（Ａ）は部分断面正面図、（Ｂ）は（Ａ）の断
面側面図である。4 (A) is a partial sectional front view, and FIG. 4 (B) is a sectional side view of FIG. 3 (A), for explaining the operation of the rotor coil supporting structure of FIG. 3;
【図５】従来の突極形同期機の回転子の磁極部の基本構
造を示す斜視図である。FIG. 5 is a perspective view showing a basic structure of a magnetic pole portion of a rotor of a conventional salient-pole synchronous machine.
【図６】図５に示す回転子コイル支え構造の一つの作用
を示すもので、（Ａ）は部分断面正面図、（Ｂ）は
（Ａ）の断面側面図である。6 (A) is a partial sectional front view, and FIG. 6 (B) is a sectional side view of FIG. 5 (A), showing one operation of the rotor coil supporting structure shown in FIG.
【図７】図５に示す回転子コイル支え構造の別の作用を
示すもので、（Ａ）は部分断面正面図、（Ｂ）は（Ａ）
の断面側面図である。7A and 7B show another operation of the rotor coil supporting structure shown in FIG. 5, wherein FIG. 7A is a partial cross-sectional front view, and FIG.
FIG.
【図８】従来の突極形同期機の回転子コイル支え構造に
ついて、（イ）は第１構造例を示すもので、（Ａ）は部
分断面正面図、（Ｂ）は（Ａ）の断面側面図、（ロ）は
第２構造例を示すもので、（Ａ）は部分断面正面図、
（Ｂ）は（Ａ）の断面側面図である。8 (A) shows a first structural example of a rotor coil supporting structure of a conventional salient-pole synchronous machine, FIG. 8 (A) is a partial sectional front view, and FIG. 8 (B) is a sectional view of FIG. (B) shows a second structural example, (A) is a partial cross-sectional front view,
(B) is a sectional side view of (A).
１１：シャフト １２：界磁鉄心 １３：回転子コイル １４：コイルエンド部 １５：コイル支え棒 11: Shaft 12: Field core 13: Rotor coil 14: Coil end 15: Coil support rod
Claims (2)
回転子コイルと、前記界磁鉄心を軸方向に貫通して配置
され且つ前記界磁鉄心から軸方向に突出した部分がコイ
ルエンド部の上面に当接しているコイル支え棒とを備え
た突極形同期機の回転子において、 前記コイル支え棒は、前記界磁鉄心の内部を貫通してい
る部分の縦方向寸法をＡ2、 前記界磁鉄心の外部に突出
している部分の縦方向寸法をＡ1として、 Ａ1＜Ａ2 としたことを特徴とする突極形同期機の回転子コイル支
え構造。1. A field core, a rotor coil wound around the field core, and a portion axially penetrating the field core and projecting from the field core in the axial direction. In a rotor of a salient pole type synchronous machine including a coil supporting rod abutting on an upper surface of a coil end portion, the coil supporting rod has a vertical dimension of a portion penetrating the inside of the field core. a 2, the vertical dimension as a 1, a 1 <rotor coil support structure of the salient pole type synchronous machine, characterized in that the a 2 of the portion projecting to the outside of the field core.
回転子コイルと、前記界磁鉄心を軸方向に貫通して配置
され且つ前記界磁鉄心から軸方向に突出した部分がコイ
ルエンド部の上面に当接しているコイル支え棒とを備え
た突極形同期機の回転子において、 前記コイル支え棒は、前記界磁鉄心の内部を貫通してい
る部分の断面形状を逆Ｔ字形としたことを特徴とする突
極形同期機の回転子コイル支え構造。2. A field core, a rotor coil wound around the field core, and a portion axially penetrating the field core and projecting from the field core in the axial direction. In a rotor of a salient pole type synchronous machine having a coil support bar abutting on an upper surface of a coil end portion, the coil support bar reverses a cross-sectional shape of a portion penetrating the field core. A rotor coil supporting structure for a salient-pole synchronous machine, which is T-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10846498A JPH11299142A (en) | 1998-04-06 | 1998-04-06 | Structure for supporting rotor coil of salient-pole synchronous machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10846498A JPH11299142A (en) | 1998-04-06 | 1998-04-06 | Structure for supporting rotor coil of salient-pole synchronous machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11299142A true JPH11299142A (en) | 1999-10-29 |
Family
ID=14485437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10846498A Pending JPH11299142A (en) | 1998-04-06 | 1998-04-06 | Structure for supporting rotor coil of salient-pole synchronous machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11299142A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003019748A1 (en) * | 2001-08-30 | 2003-03-06 | Honeywell International Inc. | System and method for end turn retention on a high speed generator rotor |
| EP1367261B1 (en) * | 2002-04-30 | 2012-05-09 | Denso Corporation | fuel pump with high torque electric driving motor in compact structure |
-
1998
- 1998-04-06 JP JP10846498A patent/JPH11299142A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003019748A1 (en) * | 2001-08-30 | 2003-03-06 | Honeywell International Inc. | System and method for end turn retention on a high speed generator rotor |
| US6727634B2 (en) | 2001-08-30 | 2004-04-27 | Honeywell International, Inc. | System and method for end turn retention on a high speed generator rotor |
| EP1367261B1 (en) * | 2002-04-30 | 2012-05-09 | Denso Corporation | fuel pump with high torque electric driving motor in compact structure |
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