JP2003009434A - Ac power generator - Google Patents
Ac power generatorInfo
- Publication number
- JP2003009434A JP2003009434A JP2001189412A JP2001189412A JP2003009434A JP 2003009434 A JP2003009434 A JP 2003009434A JP 2001189412 A JP2001189412 A JP 2001189412A JP 2001189412 A JP2001189412 A JP 2001189412A JP 2003009434 A JP2003009434 A JP 2003009434A
- Authority
- JP
- Japan
- Prior art keywords
- steel plates
- steel
- thickness
- axial direction
- stator core
- 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.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車両用交流発電機
に採用するに好適な交流発電機の構造の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in the structure of an AC generator suitable for use in a vehicle AC generator.
【０００２】[0002]
【従来の技術】回転電機のコアとコイルの構造は、例え
ば、特開平８−３４０６５９号公報に示されるように、
コアを複数枚の鋼板を積層して構成し、これにコイルを
巻装する構造であった。その構造によれば、打ち抜き鋼
板のかえりを、鋼板１枚１枚の状態でプレス加工で除去
する、または、鋼板を積層した状態でかえりをプレス加
工で除去することが記載されている。2. Description of the Related Art The structure of a core and a coil of a rotating electric machine is, for example, as disclosed in Japanese Patent Laid-Open No. 8-340659.
The core has a structure in which a plurality of steel plates are laminated and a coil is wound around the core. According to the structure, it is described that the burr of the punched steel plate is removed by press working in the state of individual steel plates, or the burr is removed by press working in a state where the steel plates are laminated.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記従来技術
は、鋼板のかえりを１枚１枚の状態にてプレス加工で除
去したり、鋼板を積層したコアの状態でかえりをプレス
加工で除去する製法では、かえりの形状、大きさ等の管
理が難しかった。このため、プレス加工でのかえり除去
については不十分であり、巻線作業時の絶縁不良が発生
しやすいという問題があった。However, in the above-mentioned prior art, the burrs of the steel sheets are removed by press working in the state of one by one, or the burrs are removed by press working in the state of the laminated core of the steel sheets. In the manufacturing method, it was difficult to control the shape and size of the burr. For this reason, there is a problem in that the burr removal by the press working is insufficient, and the insulation failure is likely to occur during the winding work.
【０００４】また、近年、車両用交流発電機への高出
力、高効率化要請に伴い、車両用交流発電機のステータ
コイル巻線技術については、より太い線の採用による高
密度巻線化が進んでいるが、スペースファクターの問題
もあり、従来技術同様に巻線作業時及び、成形作業時に
絶縁紙破れによる絶縁不良が発生する要因があった。Further, in recent years, with the demand for higher output and higher efficiency of the vehicle alternator, the stator coil winding technology of the vehicle alternator has been made higher density by adopting a thicker wire. Although progressing, there is also a problem of space factor, and there is a factor that insulation failure due to breakage of insulating paper occurs during winding work and forming work as in the prior art.
【０００５】本発明の目的とするところは、鋼板を積層
したステータコアと、このステータコアのスロット部に
巻配されたステータコイルを備えた交流発電機におい
て、ステータコイルの巻線作業及び成形作業時における
絶縁紙破れによる絶縁不良を低減することである。An object of the present invention is to provide an AC generator having a stator core in which steel plates are laminated and a stator coil wound around the slot portion of the stator core, in the winding work and the forming work of the stator coil. This is to reduce insulation failure due to breakage of insulating paper.
【０００６】[0006]
【課題を解決するための手段】本発明の主特徴とすると
ころは、ステータコアの軸方向両端を構成する鋼板を、
中央部を構成する鋼板の板厚よりも厚くするとともに、
ステータコイルが巻かれる角部に、軸方向中央部を構成
する鋼板の板厚よりも厚く面取り部を形成したことであ
る。The main feature of the present invention resides in that the steel plates constituting both axial ends of the stator core are
While making it thicker than the thickness of the steel plate that constitutes the central part,
That is, the chamfered portion is formed at the corner around which the stator coil is wound, the chamfer being thicker than the thickness of the steel plate forming the central portion in the axial direction.
【０００７】本発明の一実施態様においては、面取り部
を、板厚にほぼ等しい曲率半径を持つ円弧形状に形成す
る。In one embodiment of the present invention, the chamfered portion is formed in an arc shape having a radius of curvature substantially equal to the plate thickness.
【０００８】本発明の他の一実施態様においては、面取
り部を、軸方向中央部を構成する鋼板の板厚より大き
く，かつ軸方向両端を構成する鋼板の板厚以下の曲率半
径を持つ円弧形状に形成する。In another embodiment of the present invention, the chamfered portion is an arc having a radius of curvature greater than the plate thickness of the steel plate forming the axial center and not more than the plate thickness of the steel plates forming both axial ends. Form into a shape.
【０００９】本発明の更に他の一実施態様においては、
面取り部を、軸方向両端を構成する鋼板の板厚全域に亘
り、複数の曲率半径の組合せを持つ弓弧状に形成する。In yet another embodiment of the present invention,
The chamfered portion is formed in an arcuate shape having a combination of a plurality of radii of curvature, over the entire thickness of the steel plate forming both ends in the axial direction.
【００１０】本発明の望ましい一実施態様においては、
軸方向両端の鋼板の板厚を０．６ｍｍ以上、軸方向中央
部の鋼板の板厚を０．５ｍｍ以下に設定する。In a preferred embodiment of the present invention,
The plate thickness of the steel plates at both ends in the axial direction is set to 0.6 mm or more, and the plate thickness of the steel plate at the central portion in the axial direction is set to 0.5 mm or less.
【００１１】本発明の他の特徴とするところは、外径が
比較的小さく板厚の厚い鋼板を軸方向両端にそれぞれ複
数枚重ね、外径が比較的大きく板厚の薄い鋼板を軸方向
中央部に複数枚重ね、これら両外径の差によりインロー
部を形成することである。Another feature of the present invention is that a plurality of steel plates each having a relatively small outer diameter and a large plate thickness are stacked at both ends in the axial direction, and a steel plate having a relatively large outer diameter and a thin plate is centered in the axial direction. It is to form a spigot part by superimposing a plurality of sheets on the part and by the difference between these outer diameters.
【００１２】また、鋼板は、各層を周方向に４分割以上
に分割するとともに、各層の分割部を周方向に千鳥状に
積層することが望ましい。In the steel sheet, it is desirable that each layer is divided into four or more parts in the circumferential direction, and the divided parts of each layer are laminated in a zigzag pattern in the circumferential direction.
【００１３】これにより、ステータコイル巻配部の角部
へ最適な面取り形状を形成させ、ステータコイル巻線及
び成形作業時の絶縁紙破れによる絶縁不良を低減する。Thus, an optimal chamfered shape is formed at the corners of the stator coil winding portion, and the insulation failure due to the breakage of the stator coil winding and the insulating paper during the molding operation is reduced.
【００１４】[0014]
【発明の実施の形態】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。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.
【００１５】図１は本発明の一実施例による車両用交流
発電機を軸方向に平行な垂直面で断面した垂直断面図、
図２はそのステータコアの斜視図である。図において、
ステータコア１はパンチで打抜かれた複数枚の鋼板を積
層し、ステータスロット部２に、絶縁紙３を挟んでステ
ータコイル４が巻配されている。また、ステータの内側
にはエアーギャップを介しロータ５が配置され、それら
はシャフト６を介して両ブラケット７１，７２に支持さ
れている。FIG. 1 is a vertical sectional view of an AC generator for a vehicle according to an embodiment of the present invention, taken along a vertical plane parallel to the axial direction,
FIG. 2 is a perspective view of the stator core. In the figure,
The stator core 1 is formed by stacking a plurality of steel plates punched by a punch, and a stator coil 4 is wound around the status lot section 2 with an insulating paper 3 interposed therebetween. Further, the rotor 5 is arranged inside the stator via an air gap, and they are supported by the brackets 71 and 72 via the shaft 6.
【００１６】図２は、本発明の一実施例における車両用
交流発電機のステータコア１の完成状態を示しており、
ステータコア１の軸方向の両端部には、外径が若干小さ
く、板厚の厚い鋼板８を数枚だけ積層し、軸方向の中央
部には、外径が若干大きく、板厚の薄い多数の鋼板９を
積層している。上記外径の差によりインロー部１０を構
成している。FIG. 2 shows a completed state of the stator core 1 of the vehicle alternator in one embodiment of the present invention.
At both ends of the stator core 1 in the axial direction, only a few thin steel plates 8 having a small outer diameter and a large plate thickness are laminated, and at the central portion in the axial direction, a large outer diameter and a large number of thin plate plates are provided. Steel plates 9 are laminated. The spigot portion 10 is configured by the difference in the outer diameter.
【００１７】図３は、本発明の一実施例における車両用
交流発電機において、分割鋼板を千鳥積層したステータ
コア１の分解斜視図を示す。本実施形態においては、１
層分の鋼板８や９は、６０度分×６個に等分された鋼板
を繋いで構成している。従って、６個の単位鋼板の形状
は全く同一であり、材料鋼板から歩留まり良く、多くの
単位鋼板を量産性高く打ち抜くことができる。上記繋ぎ
部は、図示するように隣接層で重なることがないよう
に、千鳥状に配置している。このように、車両用交流発
電機のステータコアを多分割することで、磁気騒音の要
因である固有振動数を低い方向にずらすことが可能であ
り、騒音のピーク回転数（共振の振動）をエンジンアイ
ドル回転領域以下に回避できる。また、振動の減衰効果
により騒音が低減する。FIG. 3 is an exploded perspective view of the stator core 1 in which the divided steel plates are staggeredly stacked in the vehicular AC generator according to one embodiment of the present invention. In this embodiment, 1
The steel plates 8 and 9 for the layers are formed by connecting steel plates equally divided into 60 ° × 6 pieces. Therefore, the shape of the six unit steel plates is exactly the same, yield is good from the material steel plate, and many unit steel plates can be punched with high mass productivity. The connecting portions are arranged in a staggered manner so that they do not overlap in the adjacent layers as shown in the figure. In this way, by dividing the stator core of the vehicular AC generator into multiple parts, it is possible to shift the natural frequency, which is a factor of magnetic noise, to the lower direction, and the peak rotation speed (resonance vibration) of the engine is reduced. It can be avoided below the idle rotation range. Further, noise is reduced due to the vibration damping effect.
【００１８】図４は本発明の一実施例における車両用交
流発電機のステータコア１の平面図を示す。ステータコ
ア１の軸方向の両端部の厚い鋼板８において、図４のハ
ッチングで示すように、面取り部１１を、スロット部２
のほぼ全周に形成している。FIG. 4 is a plan view of the stator core 1 of the vehicle alternator in one embodiment of the present invention. In the thick steel plates 8 at both axial ends of the stator core 1, as shown by hatching in FIG.
Is formed almost all around.
【００１９】図５は、ステータスロット部２に面取り部
１１を形成する説明図であり、図４の−断面図であ
る。この例では、軸方向両端部に外径がやや小さく、板
厚ｔ８が厚い鋼板８を８１〜８４の４枚積層している。
その軸方向の中央部には、やや外径の大きい、板厚ｔ９
が薄い鋼板９を、９１，９２，…というように多数枚積
層している。前述したように、軸方向中央部の薄い鋼板
９と、軸方向両端部の厚い鋼板８との外径の差により、
インロー部１０が形成される。FIG. 5 is an explanatory view of forming the chamfered portion 11 in the status lot portion 2, and is a cross-sectional view of FIG. In this example, four steel plates 81 to 84 having a slightly small outer diameter and a large plate thickness t8 are laminated at both ends in the axial direction.
At the central portion in the axial direction, a plate thickness t9 having a slightly large outer diameter is provided.
A large number of thin steel plates 9 are stacked in the order of 91, 92, .... As described above, due to the difference in outer diameter between the thin steel plate 9 at the central portion in the axial direction and the thick steel plates 8 at both end portions in the axial direction,
The spigot part 10 is formed.
【００２０】さて、図５（ａ）では、鋼板はパンチで打
抜かれたままの状態であり、ステータコア１の軸方向両
端部の厚い鋼板８のスロット部２に角部１２を有する。
このままでは、太いコイルの採用による高密度巻化によ
りステータコイル４の巻線作業及び成形作業時に要する
力が倍増してきた現在、スロット部２の角部１２で、絶
縁紙３の破れによりステータコイル４の絶縁不良を発生
する可能性がある。In FIG. 5 (a), the steel plate is still punched out, and the corner portions 12 are formed in the slots 2 of the thick steel plate 8 at both axial ends of the stator core 1.
In this state, the force required during winding work and forming work of the stator coil 4 has been doubled due to the high density winding by using the thick coil. At present, at the corner portion 12 of the slot portion 2, the stator paper 4 is broken due to the breakage of the insulating paper 3. May cause insulation failure.
【００２１】そこで、本発明の実施例である図５（ｂ）
では、パンチで打ち抜かれた鋼板９及び８を全部積層し
た後、プレス成形により金型でスロット部２の角部１２
へ面取り部１１１を形成する。望ましい実施例において
は、中央部の多数の薄い鋼板９の板厚ｔ９＝０．５ｍｍ
で、両端部の数枚の厚い鋼板８の板厚ｔ８＝０．８ｍｍ
であるとき、面取り部１１１は、薄い鋼板９の板厚ｔ９
＝０．５ｍｍより大きな曲率半径Ｒ１＝０．６ｍｍの円
弧形状とした。これにより、大きな力でコイルを巻くと
きコイルの被覆を損傷して絶縁破壊を生じる危険性を大
幅に減らすことができる。Therefore, FIG. 5B showing an embodiment of the present invention.
Then, after all the steel plates 9 and 8 punched by a punch are laminated, the corners 12 of the slot part 2 are pressed with a die by press molding.
The chamfer 111 is formed. In the preferred embodiment, the thickness t9 of the plurality of thin steel plates 9 in the central portion is t9 = 0.5 mm.
Then, the thickness t8 of several thick steel plates 8 at both ends is 0.8 mm
, The chamfered portion 111 has a plate thickness t9 of the thin steel plate 9.
= 0.5 mm and a radius of curvature R1 = 0.6 mm. This can significantly reduce the risk of damaging the coil coating and causing dielectric breakdown when the coil is wound with a large force.
【００２２】図５（ｃ）は、端部の厚い鋼板８１の厚み
ｔ＝０．８ｍｍを最大限に活用し、面取り部１１２を、
曲率半径Ｒ２＝０．８ｍｍの円弧形状としたものであ
る。In FIG. 5C, the chamfered portion 112 is formed by making maximum use of the thickness t = 0.8 mm of the thick steel plate 81 at the end.
The arc shape has a radius of curvature R2 = 0.8 mm.
【００２３】図５（ｄ）における面取り部１１３は、ダ
ブルカーブ、すなわち面取り部１１３の上下両端近傍の
曲率半径Ｒ３を小さく、それらを大きな曲率半径Ｒ４で
繋いでいる。例えば、鋼板８１の板厚ｔ８＝０．８ｍｍ
の全域に亘り、曲率半径Ｒ３＝０．３ｍｍ及びＲ４＝
１．２ｍｍの組合せを持つ弓弧状に形成している。The chamfered portion 113 in FIG. 5 (d) is a double curve, that is, the radius of curvature R3 near the upper and lower ends of the chamfered portion 113 is small, and they are connected by a large radius of curvature R4. For example, the thickness t8 of the steel plate 81 = 0.8 mm
Radius of curvature R3 = 0.3 mm and R4 =
It is formed in an arc shape having a combination of 1.2 mm.
【００２４】以上の実施例においては、鋼板を積層した
ステータコア１と、このステータコア１のスロット部に
巻配されたステータコイル４を備えた交流発電機におい
て、ステータコア１の軸方向両端を構成する鋼板８（８
１〜８４）を、軸方向中央部を構成する鋼板９（９１，
９２，…）の板厚よりも厚くし、かつこの軸方向両端部
を構成する鋼板８１のステータコイル４が巻かれる角部
１２に、軸方向中央部を構成する鋼板９（９１，９２，
…）の板厚ｔ９＝０．５ｍｍよりも厚い０．６ｍｍ以上
の範囲で面取り部１１（１１１〜１１３）を形成してい
る。In the above embodiments, in the AC generator having the stator core 1 in which steel plates are laminated and the stator coil 4 wound around the slot portion of the stator core 1, the steel plates forming the axial ends of the stator core 1 are formed. 8 (8
1 to 84) are steel plates 9 (91, 91,
Steel plate 9 (91, 92, 91, 92, ...) which is thicker than the plate thickness of
The chamfered portion 11 (111 to 113) is formed in a range of 0.6 mm or more, which is thicker than the plate thickness t9 = 0.5 mm.
【００２５】また、図５（ｃ）の実施例においては、こ
の面取り部１１を、軸方向両端部を構成する鋼板８１の
板厚ｔ８＝０．８ｍｍにほぼ等しい曲率半径Ｒ２＝０．
８ｍｍを持つ円弧形状に形成している。Further, in the embodiment of FIG. 5C, the chamfered portion 11 has a radius of curvature R2 = 0.0.8 which is substantially equal to the plate thickness t8 = 0.8 mm of the steel plate 81 constituting both ends in the axial direction.
It is formed in an arc shape having 8 mm.
【００２６】また、図５（ｂ）及び（ｃ）の実施例にお
いては、面取り部１１を、軸方向中央部を構成する鋼板
９の板厚ｔ９＝０．５ｍｍより大きく，かつ前記軸方向
両端部を構成する鋼板８１の板厚ｔ８＝０．８以下の曲
率半径Ｒ１＝０．６ｍｍ〜Ｒ２＝０．８ｍｍを持つ円弧
形状１１１〜１１２に形成している。Further, in the embodiment of FIGS. 5B and 5C, the chamfered portion 11 has a thickness t9 of the steel plate 9 constituting the central portion in the axial direction greater than 0.5 mm and both ends in the axial direction. The steel plates 81 forming the parts are formed in arcuate shapes 111 to 112 having a radius of curvature R1 = 0.6 mm to R2 = 0.8 mm and a plate thickness t8 = 0.8 or less.
【００２７】更に、図５（ｄ）の実施例においては、面
取り部１１を、軸方向両端部を構成する鋼板８１の板厚
ｔ８＝０．８ｍｍの全域に亘り、複数の曲率半径Ｒ３＝
０．３ｍｍ及びＲ４＝１．２ｍｍの組合せを持つ弓弧状
に形成している。Further, in the embodiment of FIG. 5 (d), the chamfered portion 11 has a plurality of radiuses of curvature R3 = over the entire area of the plate thickness t8 = 0.8 mm of the steel plate 81 constituting both ends in the axial direction.
It is formed in an arc shape having a combination of 0.3 mm and R4 = 1.2 mm.
【００２８】良く知られているように、ステータコア１
として積層する鋼板は、鉄損を小さくして効率を高める
ためにはできるだけ薄くすることが望ましい。本発明の
実施例においては、この考えに沿い、軸方向の中央部の
多数の鋼板９として、板厚０．５ｍｍの鋼板９１，９
２，…を採用している。そして、軸方向両端部を構成す
る鋼板８１については、板厚をｔ８＝０．６ｍｍ以上、
望ましくはｔ８＝０．８ｍｍを確保することによって、
軸方向中央部の鋼板９の板厚ｔ９＝０．５ｍｍ以上の厚
みで面取り部１１を形成できるようにしている。As is well known, the stator core 1
It is desirable that the steel sheets to be laminated as are as thin as possible in order to reduce iron loss and improve efficiency. In the embodiment of the present invention, in accordance with this idea, a large number of steel plates 9 in the central portion in the axial direction are used as the steel plates 91, 9 having a plate thickness of 0.5 mm.
2, ... is adopted. And about the steel plate 81 which comprises both ends of an axial direction, board thickness is t8 = 0.6 mm or more,
By ensuring t8 = 0.8 mm,
The chamfered portion 11 can be formed with a thickness t9 = 0.5 mm or more of the steel plate 9 at the central portion in the axial direction.
【００２９】また、併せて、軸方向両端部を構成する鋼
板８１〜８４の外径寸法を、中央部の鋼板９１，９２，
…よりもやや小さくし、その枚数を適切に選ぶことによ
って、ブラケット７１，７２に支持されるインロー部１
０を構成している。In addition, in addition, the outer diameters of the steel plates 81 to 84 constituting the axial end portions are set to the steel plates 91, 92,
The spigot part 1 supported by the brackets 71, 72 is made slightly smaller than the ...
Configures 0.
【００３０】以上の実施例によれば、交流発電機のステ
ータコアの軸方向両端部の鋼板の板厚を中央部の鋼板の
板厚より厚くすることにより、中央部の薄い板厚より厚
い範囲で最適な面取り部を形成することができ、太線の
採用による高密度巻線化によるステータコイルの巻線作
業及び成形作業時の絶縁紙破れによる絶縁不良を低減す
ることが出来る。According to the above embodiment, the thickness of the steel plates at both axial ends of the stator core of the alternator is made thicker than the thickness of the central steel plate, so that the thickness is greater than the thin thickness of the central part. It is possible to form an optimum chamfered portion, and it is possible to reduce insulation failure due to breakage of insulating paper during winding work of the stator coil and forming work due to high density winding by adopting thick wire.
【００３１】[0031]
【発明の効果】本発明によれば、交流発電機のステータ
コイルの巻線作業及び成形作業時の絶縁紙破れによる絶
縁不良を低減することができる。According to the present invention, it is possible to reduce insulation failure due to breakage of insulating paper during winding work and forming work of a stator coil of an AC generator.
【図１】本発明を適用した車両用交流発電機の軸方向垂
直断面図。FIG. 1 is an axially vertical sectional view of a vehicle AC generator to which the present invention is applied.
【図２】本発明を適用した車両用交流発電機のステータ
コア完成斜視図。FIG. 2 is a perspective view showing a stator core of a vehicle AC generator to which the present invention is applied.
【図３】本発明を適用した車両用交流発電機の千鳥積層
ステータコアの分解斜視図。FIG. 3 is an exploded perspective view of a staggered laminated stator core of a vehicle AC generator to which the present invention is applied.
【図４】本発明の一実施例における車両用交流発電機の
ステータコアの平面図。FIG. 4 is a plan view of a stator core of a vehicle AC generator according to an embodiment of the present invention.
【図５】本発明の実施例による交流発電機のステータコ
アの面取り部の説明図。FIG. 5 is an explanatory diagram of a chamfered portion of a stator core of an AC generator according to an embodiment of the present invention.
１…ステータコア、２…ステータスロット部、３…絶縁
紙、４…ステータコイル、５…ロータ、６…シャフト、
７１，７２…ブラケット、８（８１〜６３）…ステータ
コアの両端部の厚い鋼板、９（９１，９２〜）…ステー
タコアの中央部の薄い鋼板、１０…インロー部、１１
（１１１〜１１３）…面取り部、１２…スロットの角
部。1 ... Stator core, 2 ... Status lot part, 3 ... Insulating paper, 4 ... Stator coil, 5 ... Rotor, 6 ... Shaft,
71, 72 ... Brackets, 8 (81-63) ... Thick steel plates at both ends of the stator core, 9 (91, 92-) ... Thin steel plates at central part of the stator core, 10 ... Inlay part, 11
(111-113) ... Chamfer, 12 ... Corner of slot.
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｋ 19/22 Ｈ０２Ｋ 19/22 (72)発明者 佐々木 進 茨城県ひたちなか市大字高場2520番地 株 式会社日立製作所自動車機器グループ内 (72)発明者 平間 誠 茨城県ひたちなか市高場2477番地 株式会 社日立カーエンジニアリング内 Ｆターム(参考） 5H002 AA07 AA08 AB06 AE08 5H615 AA01 BB02 BB07 BB14 BB16 PP01 PP08 SS03 SS05 5H619 AA04 AA05 BB02 BB06 BB17 PP01 PP05 PP06 Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) H02K 19/22 H02K 19/22 (72) Inventor Susumu Sasaki 2520 Takaba, Hitachinaka City, Ibaraki Prefecture Hitachi, Ltd. Equipment Group (72) Inventor Makoto Hirama 2477 Takaba, Hitachinaka City, Ibaraki F-Term in Hitachi Car Engineering Co., Ltd. (reference) 5H002 AA07 AA08 AB06 AE08 5H615 AA01 BB02 BB07 BB14 BB16 PP01 PP08 SS03 SS05 5H619 AA04 AA05 BB02 BB02 BB17 PP01 PP05 PP06
Claims (8)
ータコアのスロット部に巻配されたステータコイルを備
えた交流発電機において、前記ステータコアの軸方向両
端を構成する前記鋼板を、軸方向中央部を構成する前記
鋼板の板厚よりも厚くし、かつこの軸方向両端を構成す
る鋼板の前記ステータコイルが巻かれる角部に、前記軸
方向中央部を構成する鋼板の板厚よりも厚い範囲で面取
り部を形成したことを特徴とする交流発電機。1. An alternating current generator comprising a stator core in which steel plates are laminated and a stator coil wound around a slot portion of the stator core, wherein the steel plates forming axially opposite ends of the stator core Being thicker than the plate thickness of the steel plate that constitutes the chamfer in a range that is thicker than the plate thickness of the steel plate that constitutes the axial center part at the corners around which the stator coils of the steel plates constituting the axial ends are wound. AC generator characterized by forming a part.
軸方向両端を構成する鋼板の板厚にほぼ等しい曲率半径
を持つ円弧形状に形成したことを特徴とする交流発電
機。2. The alternator according to claim 1, wherein the chamfered portion is formed in an arc shape having a radius of curvature substantially equal to the plate thickness of the steel plates forming both ends in the axial direction.
軸方向中央部を構成する鋼板の板厚より大きく，かつ前
記軸方向両端を構成する鋼板の板厚以下の曲率半径を持
つ円弧形状に形成したことを特徴とする交流発電機。3. The arc shape according to claim 1, wherein the chamfered portion has a radius of curvature greater than a plate thickness of a steel plate forming the central portion in the axial direction and less than or equal to a plate thickness of the steel plates forming both ends in the axial direction. AC generator characterized by being formed in.
軸方向両端を構成する鋼板の板厚全域に亘り、複数の曲
率半径の組合せを持つ弓弧状に形成したことを特徴とす
る交流発電機。4. The alternating current power generation according to claim 1, wherein the chamfered portion is formed in an arcuate shape having a combination of a plurality of curvature radii over the entire thickness of the steel plates forming the both ends in the axial direction. Machine.
比較的小さく板厚の厚い前記鋼板を、軸方向両端にそれ
ぞれ複数枚重ね、外径が比較的大きく板厚の薄い前記鋼
板を軸方向中央部に複数枚重ね、前記両外径の差により
インロー部を形成したことを特徴とする交流発電機。5. The steel sheet according to claim 1, wherein a plurality of the steel plates having a relatively small outer diameter and a large plate thickness are stacked at both ends in the axial direction, and the steel plate having a relatively large outer diameter and a thin plate thickness. An alternating-current generator characterized in that a plurality of sheets are stacked in the central portion in the axial direction, and a spigot portion is formed by the difference in both outer diameters.
両端の前記鋼板の板厚を０．６ｍｍ以上、軸方向中央部
の前記鋼板の板厚を０．５ｍｍ以下としたことを特徴と
する交流発電機。6. The steel sheet according to claim 1, wherein the thickness of the steel sheet at both ends in the axial direction is 0.6 mm or more and the thickness of the steel sheet at the central portion in the axial direction is 0.5 mm or less. And an alternator.
ータコアと、このステータコアのスロット部に巻配され
たステータコイルを備えた車両用交流発電機において、
前記ステータコアの軸方向両端を構成する前記鋼板を、
軸方向中央部を構成する前記鋼板の板厚より厚くし、か
つこの軸方向両端を構成する鋼板の前記ステータコイル
が巻かれる角部に、前記軸方向中央部を構成する鋼板の
板厚よりも厚く面取り部を形成したことを特徴とする車
両用交流発電機。7. A vehicle alternator comprising: a stator core in which steel plates punched by a punch are laminated; and a stator coil wound around a slot portion of the stator core.
The steel plates forming the axial ends of the stator core,
It is thicker than the plate thickness of the steel plate forming the axial center part, and at the corners around which the stator coils of the steel plates forming the axial ends are wound, than the plate thickness of the steel plate forming the axial center part. An alternator for vehicles, characterized by having a thick chamfered portion.
板の少なくとも一部は、各層が周方向に４分割以上に分
割されて構成されるとともに、各層の分割部が周方向に
向けて千鳥状に積層されていることを特徴とする交流発
電機。8. The steel sheet according to claim 1, wherein at least a part of the steel sheet is formed by dividing each layer into four or more portions in the circumferential direction, and the divided portions of each layer are oriented in the circumferential direction. An alternating current generator characterized by being stacked in a staggered pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001189412A JP2003009434A (en) | 2001-06-22 | 2001-06-22 | Ac power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001189412A JP2003009434A (en) | 2001-06-22 | 2001-06-22 | Ac power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003009434A true JP2003009434A (en) | 2003-01-10 |
Family
ID=19028337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001189412A Withdrawn JP2003009434A (en) | 2001-06-22 | 2001-06-22 | Ac power generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003009434A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7225526B2 (en) | 2003-03-07 | 2007-06-05 | Denso Corporation | Method of producing winding of dynamo-electric machine |
| JP2008109739A (en) * | 2006-10-24 | 2008-05-08 | Denso Corp | Stator of rotary electric machine for vehicle |
| US8207647B2 (en) | 2003-09-05 | 2012-06-26 | Black & Decker Inc. | Power tools with motor having a multi-piece stator |
| US8476802B2 (en) | 2010-06-16 | 2013-07-02 | Samsung Electro-Mechanics Co., Ltd. | Core and motor having the same |
| JP2015171250A (en) * | 2014-03-07 | 2015-09-28 | 株式会社デンソー | Stator iron core, manufacturing method for stator iron core, stator, rotary electric machine, and wheel |
| DE102019214693A1 (en) * | 2019-09-25 | 2021-03-25 | Robert Bosch Gmbh | Machine component, electrical machine, and method for manufacturing the machine component |
-
2001
- 2001-06-22 JP JP2001189412A patent/JP2003009434A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7225526B2 (en) | 2003-03-07 | 2007-06-05 | Denso Corporation | Method of producing winding of dynamo-electric machine |
| US8207647B2 (en) | 2003-09-05 | 2012-06-26 | Black & Decker Inc. | Power tools with motor having a multi-piece stator |
| JP2008109739A (en) * | 2006-10-24 | 2008-05-08 | Denso Corp | Stator of rotary electric machine for vehicle |
| US8476802B2 (en) | 2010-06-16 | 2013-07-02 | Samsung Electro-Mechanics Co., Ltd. | Core and motor having the same |
| JP2015171250A (en) * | 2014-03-07 | 2015-09-28 | 株式会社デンソー | Stator iron core, manufacturing method for stator iron core, stator, rotary electric machine, and wheel |
| DE102019214693A1 (en) * | 2019-09-25 | 2021-03-25 | Robert Bosch Gmbh | Machine component, electrical machine, and method for manufacturing the machine component |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3735197B2 (en) | Method for manufacturing coil molded body and mold used therefor | |
| US6664703B2 (en) | Stator for rotary machine and method of manufacturing the stator | |
| EP1081830B1 (en) | Electric rotary machine having a plurality of conductor segments and method of manufacturing the same | |
| US6960857B2 (en) | Stator for an alternator and method for the manufacture thereof | |
| JP4019951B2 (en) | Manufacturing method of winding of rotating electrical machine and processing method of winding recess | |
| JPH09103052A (en) | Method of manufacturing stator in ac dynamo-electric machine | |
| JPH06205556A (en) | Rotor coil-winding device and rotary electromotor | |
| JP2003250252A (en) | Method of manufacturing motor | |
| JP2009038843A (en) | Alternator for vehicle and manufacturing method thereof | |
| JPH10304608A (en) | Motor | |
| JP3583234B2 (en) | Electric motor and method of manufacturing electric motor | |
| CN108496293B (en) | Electrical sheet with printed connecting sheet | |
| JP2003009434A (en) | Ac power generator | |
| JP5651924B2 (en) | Stator core and motor | |
| JP3807089B2 (en) | Vehicle alternator stator and method for disassembling the same | |
| JP2000069729A (en) | Vehicle ac generator | |
| KR20100117040A (en) | Dynamoelectric machine rotors having enhanced heat transfer and method therefor | |
| US3650167A (en) | Method of manufacturing magnetic laminations for dynamoelectric machine | |
| JPS58165640A (en) | Laminated core of rotary electric machine | |
| CN214314773U (en) | Motor rotor assembly | |
| JP2000014066A (en) | Electric rotating machine and rotating machine coil | |
| JPH09289745A (en) | Magnetic pole laminate of rotating machine | |
| JP5591492B2 (en) | In-phase insulating paper for rotating electric machine, insulating method, and stator | |
| JPH11289721A (en) | Laminated stator core and its manufacture method | |
| JP4576912B2 (en) | Stator structure of rotating electrical machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040817 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040824 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20041025 |