JPH11234955A - Dynamo-electric machine - Google Patents
Dynamo-electric machineInfo
- Publication number
- JPH11234955A JPH11234955A JP3087198A JP3087198A JPH11234955A JP H11234955 A JPH11234955 A JP H11234955A JP 3087198 A JP3087198 A JP 3087198A JP 3087198 A JP3087198 A JP 3087198A JP H11234955 A JPH11234955 A JP H11234955A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- electric machine
- core
- stator frame
- flange
- 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
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転電機の固定子
枠及び固定子に関する。The present invention relates to a stator frame and a stator for a rotating electric machine.
【０００２】[0002]
【従来の技術】従来の回転電機の一例を図１３乃至１５
を参照して説明する。図１３（ａ）は上半分縦断面を含
む回転電機の側面図で、（ｂ）はＡ−Ａ断面図である。
図において、固定子枠１は筒状で両端部にインロー部１
ａを有し、このインロー部１ａに軸受ブラケット５，６
が嵌合配設されている。固定子枠１内側には、電磁鋼板
を複数枚積層し外周を複数枚のコア止板２ａ（図１３
（ｂ）では４カ所）で固定（例えば溶接で）して成る固
定子鉄心２に、固定子巻線３を巻装して形成の固定子４
が嵌着され、この固定子４内径の空隙１２を隔てて回転
子１１が前記軸受ブラケット５，６の中央部に挿入の軸
受７，８を介して回転自在に支承されている。そして、
固定子枠１胴部外周の下部に配設された脚１Ａを介して
回転電機を図示しない架台に据え付け固定する。尚、前
記インロー部１ａの内径ΦＤｓは固定子鉄心２の外径Φ
Ｄｃより大きく、軸受ブラケット５，６の外径ΦＤｂは
内径ΦＤｓよりも大きく構成されている。即ち、各径の
関係はΦＤｂ＞ΦＤｓ＞ΦＤｃとなっている。上記固定
子４は固定子枠１の端部開放口から圧入されて鋲４ａで
固定され、固定子枠１の内周で且つ対角線上に設けた支
持部１ｂにて固定子鉄心２が支持される。2. Description of the Related Art An example of a conventional rotating electric machine is shown in FIGS.
This will be described with reference to FIG. FIG. 13A is a side view of a rotating electric machine including an upper half longitudinal section, and FIG. 13B is a sectional view taken along line AA.
In the figure, a stator frame 1 is cylindrical and has a spigot portion 1 at both ends.
a bearing brackets 5, 6
Are fitted and arranged. On the inner side of the stator frame 1, a plurality of electromagnetic steel plates are laminated and the outer periphery is provided with a plurality of core stopper plates 2a (FIG. 13).
A stator 4 formed by winding a stator winding 3 around a stator core 2 fixed (for example, by welding) at four places in FIG.
The rotor 11 is rotatably supported via bearings 7 and 8 inserted into the center portions of the bearing brackets 5 and 6 with a gap 12 having an inner diameter of the stator 4 therebetween. And
The rotating electric machine is installed and fixed on a gantry (not shown) via legs 1A provided at the lower portion of the outer periphery of the body of the stator frame 1. The inner diameter ΦDs of the spigot portion 1a is equal to the outer diameter ΦD of the stator core 2.
The outer diameter ΦDb of the bearing brackets 5, 6 is larger than the inner diameter ΦDs. That is, the relationship between the diameters is ΦDb>ΦDs> ΦDc. The stator 4 is press-fitted from an end opening of the stator frame 1 and is fixed with a stud 4a. The stator core 2 is supported by a support portion 1b provided on the inner periphery of the stator frame 1 and on a diagonal line. You.
【０００３】この回転電機を運転した時の固定子鉄心２
の振動モードを図１５に示す。この振動モードは主に２
極の大容量機に顕著に現れて運転中に回転しており、固
定子枠１に伝達されると引張り・圧縮を繰り返し、固定
子枠１に歪みが発生したり回転電機全体の振動発生要因
となる。[0003] The stator core 2 when the rotating electric machine is operated.
FIG. 15 shows the vibration mode. This vibration mode is mainly 2
It appears remarkably in a pole large-capacity machine and rotates during operation, and when transmitted to the stator frame 1, it repeats tension and compression, causing distortion in the stator frame 1 and vibration generation factors of the entire rotating electric machine. Becomes
【０００４】[0004]
【発明が解決しようとする課題】このような回転電機に
は次のような課題がある。 供給電源がインバータによる場合に、顕著に発生する
コギングトルクによる回転方向への振動に対し、回転電
機の据付け固定が固定子枠１の脚部１Ａで行われるの
で、回転電機の上部が不安定になって円周方向の振動が
増大し、回転電機の構成要素にストレスが荷担して短命
化の一要因になる。However, such a rotating electric machine has the following problems. When the power supply is provided by an inverter, the rotating electric machine is installed and fixed by the leg 1A of the stator frame 1 against the vibration in the rotating direction due to the cogging torque which is remarkably generated. As a result, the vibration in the circumferential direction increases, and stress is applied to the components of the rotating electric machine, which is one of the factors for shortening the life.
【０００５】固定子鉄心２を対角線上に固定子枠１に
固定しているので、例えば２極機の大容量機に顕著に現
れる固定子鉄心２の起磁力分布によって発生する楕円モ
ード振動（固定子鉄心２の）を回避できず、回転電機振
動が増大して各構成要素にストレスが荷担して短命化の
一要因になる。以上２点の振動過大より、回転電機の短
命化や騒音増加を引き起こしていた。Since the stator core 2 is fixed to the stator frame 1 on a diagonal line, for example, elliptic mode vibration (fixed) generated by the magnetomotive force distribution of the stator core 2 which is conspicuous in a large capacity machine such as a two-pole machine. The core core 2) cannot be avoided, and the vibration of the rotating electric machine increases, and stress is applied to each component, which is one factor of shortening the life. Excessive vibrations at the above two points have shortened the life of the rotating electric machine and increased noise.
【０００６】また固定子枠１のインロー径ΦＤｓと軸
受ブラケット５，６の外径ΦＤｂとが、固定子鉄心２の
外径ΦＤｃより大きいので、特性上必要な容量に対する
鉄心ボリュウムより固定子枠１が大きい形状となるの
で、システム全体に占める回転電機の占有面積が大きく
なっていた。Further, since the spigot diameter .PHI.Ds of the stator frame 1 and the outer diameter .PHI.Db of the bearing brackets 5 and 6 are larger than the outer diameter .PHI.Dc of the stator core 2, the stator frame 1 has a smaller capacity than the core volume required for the characteristic. Is large, so that the area occupied by the rotating electric machine in the entire system has increased.
【０００７】そして、特性上必要な容量に対する鉄心
ボリュウムは簡略的に次式で表わされる。 Ｐ＝Ｋ・Ｄ2 ・Ｌ ここで、Ｐ：容量（Ｋｗ），Ｋ：材料係数，Ｄ：固定子
鉄心外径（ｍｍ），Ｌ：鉄心積厚（ｍｍ） 大容量で且つ全高寸法を短縮する場合は、鉄心外径を小
さくする必要があり、その補正をする為に鉄心材料を高
効率化する（Ｋを大きくする）か、若しくは鉄心積厚を
長くする対策をとる。しかしながら、高効率化できる鉄
心材料は一般的に高価である。また、積厚を余り長くす
ると鉄心の撓みが大きくなり、コア止板２ａの強度と鉄
心２へのコア止板２ａの固着部強度が低下する問題があ
る。コア止板２ａを大きくし強度を上げるには、鉄心２
の凹部１ｃを大きくする必要があり、鉄心背部（磁束の
流れる部分）減少による特性悪化を招く場合がある。或
いは、図１４に示すようなコア止板２ｂに凸部を設け強
度を上げても、鉄心２での固着部強度は改善できない。
即ち、長い積厚の場合はコア止板に強度上の問題があっ
た。The iron core volume for the required capacity in terms of characteristics is simply expressed by the following equation. P = K · D 2 · L where P: capacity (Kw), K: material coefficient, D: stator core outer diameter (mm), L: core thickness (mm) Large capacity and shortened overall height In such a case, it is necessary to reduce the outer diameter of the iron core, and in order to compensate for this, measures are taken to increase the efficiency of the iron core material (increase K) or to lengthen the core thickness. However, core materials that can be made highly efficient are generally expensive. Further, when the stack thickness is too long, the deflection of the iron core increases, and there is a problem that the strength of the core stopper plate 2a and the strength of the fixing portion of the core stopper plate 2a to the iron core 2 decrease. To increase the size of the core stopper plate 2a and increase the strength,
It is necessary to increase the size of the concave portion 1c, which may lead to deterioration of characteristics due to a decrease in the back portion of the iron core (portion through which magnetic flux flows). Alternatively, even if the strength is increased by providing a projection on the core stopper plate 2b as shown in FIG. 14, the strength of the fixing portion in the iron core 2 cannot be improved.
That is, in the case of a long laminated thickness, there was a problem in strength of the core stopper plate.
【０００８】コア止板の強度を上げる為にコア止板２
ｂと鉄心２を一体構成にし、鉄心２に凸部を設けるもの
が考えられる。しかし凸部は、鉄心２が電磁鋼板を積層
して形成されるので、凹部１ｃへの取付面の精度が悪く
鉄心２の安定性が悪い。取付面精度の向上には面加工を
要するので、工数増加となる。In order to increase the strength of the core stopper plate, the core stopper plate 2
It is conceivable that b and the iron core 2 are integrally formed, and the iron core 2 is provided with a convex portion. However, since the iron cores 2 are formed by laminating electromagnetic steel plates, the protrusions have poor accuracy of the mounting surface to the concave portions 1c and the stability of the iron cores 2 is poor. Since surface processing is required to improve the mounting surface accuracy, the number of steps is increased.
【０００９】固定子４の固定子枠１への圧入設備は、
固定子枠１と鉄心２の合計厚さの大きさを要し、長い積
厚の鉄心２は設備が大型化する欠点がある。 鉄心２の固定子枠１内への固定位置決めで、鋲４ａの
打ち込み作業と治工具を要する。[0009] The equipment for press-fitting the stator 4 into the stator frame 1 is as follows.
The total thickness of the stator frame 1 and the iron core 2 is required, and the long core 2 has a disadvantage that the equipment becomes large. The fixing and positioning of the core 2 in the stator frame 1 requires a driving operation of the studs 4a and a jig.
【００１０】回転電機の冷却構造を大きく区分する
と、全閉形，開放形，熱交換器搭載形などあるが、夫々
の構成に専用の固定子枠１を要した。本発明は、上記事
情に鑑みて成されたもので、運転時に発生するコギング
トルクを固定子鉄心の中心を含む平面で受け、且つ起磁
力による楕円モード振動を固定子枠に伝達されても回転
電機が静粛に運転できる構造とする。又、大容量機にお
いても全体高さの小形化と高剛性を持ち、且つ製造設備
の縮小と製造工数の短縮をし低価格の回転電機を提供す
ることを目的とする。The cooling structure of the rotating electric machine can be roughly classified into a fully closed type, an open type, a type equipped with a heat exchanger, and the like. The present invention has been made in view of the above circumstances, and receives cogging torque generated during operation on a plane including the center of the stator core, and rotates even if elliptic mode vibration due to magnetomotive force is transmitted to the stator frame. The structure is such that the electric machine can run quietly. Another object of the present invention is to provide a low-cost rotary electric machine having a large-capacity machine having a small overall height and high rigidity, and a reduction in manufacturing equipment and manufacturing man-hours.
【００１１】[0011]
【課題を解決するための手段】本発明における回転電機
は、請求項１では固定子鉄心内に固定子巻線が収納され
てなる固定子を固定子枠内に配置してなる回転電機にお
いて、前記固定子枠の上部に開口された長さを前記固定
子の軸方向長さよりも長くし且つ幅を前記固定子鉄心外
径よりも大きくして形成の開口窓と、固定子枠の外側に
設けられた該固定子枠の軸芯水平方向に突出し軸方向に
延びて形成の据付支持部と、この据付支持部の機内側上
部に形成の凹部と、前記固定子鉄心の外側に一対設けら
れた該固定子鉄心の軸芯水平方向に突出し軸方向に延び
て形成の鍔と、この鍔内に穿孔の貫通孔と、この貫通孔
内に挿入される棒材と、固定子を固定子枠に固定する固
定具と、前記開口窓を覆うカバーとを備え、前記開口窓
から固定子を挿入して鍔を据付支持部の凹部に係止さ
せ、鍔内の貫通孔内に棒材を挿入後に据付支持部と鍔上
部を固定具の固定により固定子を固定子枠に固定後、開
口窓をカバーで覆って形成されたことを特徴とする。According to a first aspect of the present invention, there is provided a rotating electric machine in which a stator in which a stator winding is housed in a stator core is arranged in a stator frame. An opening window formed by making the length opened at the upper part of the stator frame longer than the axial length of the stator and having a width larger than the outer diameter of the stator core, outside the stator frame. An installation support portion that is formed so as to protrude in the axial direction and extend in the axial direction of the stator frame provided, a recess formed in the upper part of the installation support portion on the inside of the machine, and a pair provided outside the stator core. A flange protruding in the horizontal direction and extending in the axial direction of the stator core, a through hole formed in the flange, a rod inserted into the through hole, and a stator frame. And a cover that covers the opening window, and a stator is inserted from the opening window. After the bar is inserted into the through-hole in the flange, the stator is fixed to the stator frame by fixing the mounting support and the upper part of the flange to the stator frame, and then the opening window is opened. It is characterized by being formed by covering with a cover.
【００１２】このように構成すると、運転時のコギング
トルクにより発生する円周方向振動を、固定子鉄心の中
心部から径方向の水平方向で受けることができるので、
回転電機の据付け状態が安定する。又、固定子鉄心を鉄
心支持部で受けると共に固定子鉄心の鍔と固定子枠の凹
部間に設けた隙間調整で支持されているので、対角線上
での固定子鉄心の外径支持がなくなり、固定子鉄心で楕
円モード振動が発生し固定子枠へ伝達されても固定子枠
の歪み発生が回避できる。これにより、回転電機の低振
動化ができると共に低騒音化となる。With such a configuration, circumferential vibration generated by cogging torque during operation can be received in the radial horizontal direction from the center of the stator core.
The installation state of the rotating electric machine is stabilized. Also, since the stator core is received by the core support portion and supported by the gap adjustment provided between the flange of the stator core and the recess of the stator frame, the outer diameter of the stator core on the diagonal line is not supported, Even if an elliptical mode vibration occurs in the stator core and is transmitted to the stator frame, it is possible to avoid distortion of the stator frame. Thereby, the vibration of the rotating electric machine can be reduced and the noise can be reduced.
【００１３】次に請求項２は、前記カバーに通風可能な
通風口を設けた回転電機である。この構成により、外気
・内気を通風することができ、一般的な開放形の回転電
機の構造を得ることができる。A second aspect of the present invention is a rotating electric machine having a ventilation port through which the cover can be ventilated. With this configuration, the outside air and the inside air can be ventilated, and a structure of a general open-type rotating electric machine can be obtained.
【００１４】また請求項３は、前記開口窓を塞ぎ且つ固
定子枠の据付支持部の上部に熱交換器を取り付けた回転
電機である。上記請求項２，３によれば、開口窓を塞ぎ
方法を冷却構造により変更すれば、様々な用途でも固定
子枠の共用化ができる。According to a third aspect of the present invention, there is provided a rotating electric machine in which the opening window is closed and a heat exchanger is attached to an upper portion of the installation support portion of the stator frame. According to the second and third aspects, if the method of closing the opening window is changed by the cooling structure, the stator frame can be shared for various uses.
【００１５】更に請求項４は、前記固定子枠と固定子鉄
心の鍔との間に硬質防振ゴムを配置した回転電機であ
る。この構成により、固定子鉄心から発生する振動に対
する固定子枠への影響をさらに低減でき、又、固定子鉄
心の積層精度のバラツキを吸収することができる。A fourth aspect of the present invention is a rotating electrical machine in which a hard rubber is disposed between the stator frame and a flange of a stator core. With this configuration, it is possible to further reduce the influence on the stator frame with respect to vibration generated from the stator core, and to absorb variations in the stacking accuracy of the stator core.
【００１６】また請求項５は、前記棒材を断面形状がＣ
形ワッシャ形状の丸棒材とし、この丸棒材の外周で固定
子鉄心を嵌合固定した回転電機である。この構成によ
り、丸棒材と固定子鉄心の丸棒材嵌合部に隙間を広く設
けることができ、丸棒材の挿入性が改善できる。又、丸
棒材嵌合部に圧力を加える為、丸棒材の固着力を向上さ
せると共に固定子鉄心の積層精度のバラツキを吸収する
ことができる。According to a fifth aspect of the present invention, the bar has a cross-sectional shape of C.
This is a rotating electric machine in which a round bar having a washer shape is used, and a stator core is fitted and fixed around the round bar. With this configuration, a wide gap can be provided between the round bar material and the round bar material fitting portion of the stator core, and the insertability of the round bar material can be improved. In addition, since pressure is applied to the round bar fitting portion, it is possible to improve the fixing force of the round bar and absorb variations in the lamination accuracy of the stator core.
【００１７】そして請求項６は、固定子鉄心の軸方向中
央部に鍔のない回転電機である。この構成により、固定
子鉄心の外周円周方向に通風経路を設けることができ、
冷却性能が向上する。A sixth aspect of the present invention is a rotating electric machine having no flange at the axial center of the stator core. With this configuration, a ventilation path can be provided in the circumferential direction of the outer circumference of the stator core,
Cooling performance is improved.
【００１８】[0018]
【発明の実施の形態】以下本発明の第１実施例を図１乃
至図５を参照して説明する。尚、従来と同じ部品には同
じ符号を使用して説明する。図１は、本発明の第１実施
例を示す回転電機の上半分縦断面を含む側面図、図２は
図１を上から見た図、図３は本発明の固定子枠と固定子
鉄心の断面図、図４は棒材の斜視図、図５は回転電機の
平面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. The same parts as those in the related art will be described using the same reference numerals. 1 is a side view including an upper half longitudinal section of a rotary electric machine showing a first embodiment of the present invention, FIG. 2 is a view of FIG. 1 as viewed from above, and FIG. 3 is a stator frame and a stator core of the present invention. , FIG. 4 is a perspective view of a bar, and FIG. 5 is a plan view of a rotating electric machine.
【００１９】まず図２を参照して固定子枠２０の構成を
説明する。固定子枠２０は略筒状で水平配置した時の胴
部の頭部を穿口して開口窓１３を形成し、胴部の底部は
水平面と平行した平面底部が形成されている。前記開口
窓１３は、軸方向寸法を固定子４の軸方向長さ（固定子
鉄心２Ａの軸方向長さ＋固定子巻線３の軸方向長さ）よ
りも長くし、且つ幅方向寸法を鉄心２Ａ外径よりも大き
く穿口されている。そして、圧入した鉄心２Ａの中心部
から径方向の水平線上となる固定子枠２０の外側位置
に、外径側に突出する回転電機の据付支持部１４を設け
る。又、据付支持部１４から下部の固定子枠２０胴部内
側には軸方向に延びる鉄心２Ａを支持する鉄心支持部２
０ｂを複数個形成する。更に、据付支持部１４平面上に
は吊具１７を固定しておくと共に、内周側には凹部２０
ｃを形成しておく。この固定子枠２０の両端部には図１
に示すようにインロー部２０ａを有し、このインロー部
２０ａに軸受ブラケット５Ａ，６Ａが嵌合配設されてい
る。First, the configuration of the stator frame 20 will be described with reference to FIG. The stator frame 20 is formed in a substantially cylindrical shape and horizontally opened to form an opening window 13 by piercing the head of the trunk, and the bottom of the trunk has a flat bottom parallel to the horizontal plane. The opening window 13 has an axial dimension longer than the axial length of the stator 4 (the axial length of the stator core 2A + the axial length of the stator winding 3) and the width dimension. The hole is bored larger than the outer diameter of the core 2A. At the outer position of the stator frame 20 which is on the horizontal line in the radial direction from the center of the press-fitted iron core 2A, the installation support portion 14 of the rotating electric machine projecting to the outer diameter side is provided. A core support 2 for supporting an axially extending core 2 </ b> A inside the body of the lower stator frame 20 from the installation support 14.
0b are formed. Further, the hanging member 17 is fixed on the plane of the installation support portion 14, and the recess 20 is provided on the inner peripheral side.
c is formed in advance. As shown in FIG.
As shown in the figure, the seat has a spigot portion 20a, and the bearing brackets 5A and 6A are fitted to the spigot portion 20a.
【００２０】次に固定子鉄心２Ａは、内周に複数個の溝
を有し外周には複数個の凹部１ｃを有すると共に、前記
凹部１ｃ間にあって外径方向に対角線上に突出する左右
対称一対の鍔２ｃ（該鍔２ｃの略中央部には角棒材１５
が挿入される貫通角孔１５ａが穿孔されている）を設け
た電磁抜板を、前記角棒材１５に貫通角孔１５ａを嵌合
させながら規定枚数積層し、前記凹部１ｃにコア止板２
ａ（図１３（ｂ）と同様に４カ所）を溶接により固定し
形成される。この固定子鉄心２Ａの溝に固定子巻線３を
巻装して固定子４を形成する。続いて、この固定子４が
前記開口窓１３から固定子枠２０内に挿入されて鉄心支
持部２０ｂで支持され、前記鍔２ｃを据付支持部１４の
凹部２０ｃに係合させて鍔２ｃ上部を固定具１６で固定
する。この時、鍔２ｃと凹部２０ｃ間には隙間Ｓを設け
ておく（図３参照）。そして、固定子４内径の空隙１２
を隔てて挿入の回転子１１が、軸受ブラケット５Ａ，６
Ａの中央部に挿入の軸受７，８を介して回転自在に支承
されている。Next, the stator core 2A has a plurality of grooves on the inner periphery, a plurality of recesses 1c on the outer periphery, and a pair of left-right symmetrical members between the recesses 1c and projecting diagonally in the outer diameter direction. (A square bar 15 is provided at a substantially central portion of the flange 2c).
A predetermined number of electromagnetic punched plates provided with through-square holes 15a into which square holes are inserted) are laminated while fitting the through-square holes 15a into the square bar members 15, and the core stopper plate 2 is inserted into the recess 1c.
a (four places as in FIG. 13B) are fixed by welding. A stator winding 3 is wound around a groove of the stator core 2A to form a stator 4. Subsequently, the stator 4 is inserted into the stator frame 20 from the opening window 13 and supported by the iron core supporting portion 20b, and the flange 2c is engaged with the concave portion 20c of the installation supporting portion 14 so that the upper portion of the flange 2c is closed. It is fixed with the fixture 16. At this time, a gap S is provided between the flange 2c and the recess 20c (see FIG. 3). Then, a gap 12 of the inner diameter of the stator 4 is formed.
The rotor 11 inserted across the bearing brackets 5A, 6
A is rotatably supported at the center of A through bearings 7 and 8 inserted.
【００２１】尚、前記インロー部２０ａの内径ΦＤｓ1
は固定子鉄心２Ａの外径ΦＤｃ1 より小さく、軸受ブラ
ケット５，６の外径ΦＤｂ1 は外径ΦＤｓ1 と同等また
は小さく構成されている。即ち、各径の関係はΦＤｃ１
≧ΦＤｂ１＞ΦＤｓ１となっている。又、上記固定子４
と固定子枠２０の固定は、固定子枠２０の開口窓１３か
ら挿入の固定子４を鍔２ｃと凹部２０ｃ間の隙間Ｓ調整
後に固定具１６にて据付支持部１４へ固定する。そし
て、開口窓１３を図５に示すようにカバー１８Ａで覆
い、固定子枠２０の吊り上げは据付支持部１４の吊具１
７にて行った後、回転電機の架台への据付けは据付支持
部１４にて行う。The inner diameter ΦDs1 of the spigot portion 20a
Is smaller than the outer diameter ΦDc1 of the stator core 2A, and the outer diameter ΦDb1 of the bearing brackets 5 and 6 is equal to or smaller than the outer diameter ΦDs1. That is, the relationship between the diameters is ΦDc1.
?? Db1>? Ds1. Also, the above stator 4
To fix the stator frame 20 and the stator frame 20, the stator 4 inserted from the opening window 13 of the stator frame 20 is fixed to the installation support portion 14 by the fixture 16 after adjusting the gap S between the flange 2c and the concave portion 20c. Then, as shown in FIG. 5, the opening window 13 is covered with a cover 18A, and the stator frame 20 is lifted by the hanging tool 1 of the installation support portion 14.
7, the rotary electric machine is installed on the gantry by the installation support unit 14.
【００２２】このように構成された回転電機の作用につ
いて説明する。運転時のコギングトルクにより発生する
円周方向振動を、固定子鉄心２Ａの中心部から径方向の
水平方向で受けることができるので、回転電機の据付け
状態が安定する。又、鉄心２Ａを鉄心支持部２０ｂで受
けると共に鉄心２Ａの鍔２ｃと固定子枠２０の凹部２０
ｃ間に設けた隙間Ｓ調整で支持されているので、対角線
上での鉄心２Ａの外径支持がなくなり、鉄心２Ａで楕円
モード振動が発生し固定子枠２０へ伝達されても固定子
枠２０の歪み発生が回避できる。これにより、回転電機
の低振動化ができると共に低騒音化となる。The operation of the rotating electric machine thus configured will be described. Circumferential vibration generated by cogging torque during operation can be received from the center of the stator core 2A in the radial and horizontal direction, so that the installed state of the rotating electric machine is stabilized. The core 2A is received by the core supporting portion 20b, and the flange 2c of the core 2A and the recess 20 of the stator frame 20 are provided.
c, the outer diameter of the iron core 2A is not supported on the diagonal line, and even if elliptical mode vibration occurs in the iron core 2A and is transmitted to the stator frame 20, the stator frame 20 is not supported. Can be avoided. Thereby, the vibration of the rotating electric machine can be reduced and the noise can be reduced.
【００２３】又、鉄心２Ａを固定子枠２０の開口窓１３
から挿入組み立てる為、固定子枠２０のインロー部２０
ａの内径ΦＤｓ1 や軸受ブラケット５，６の外径ΦＤｂ
1 に寸法的制約条件がなくなり、鉄心２Ａ外径よりも小
さく設定することができる。更に、鉄心２Ａの固定子枠
２０への軸方向圧入が不要となり、それに伴う設備が不
要となる。鉄心２Ａに鍔２ｃを設けたことと該鍔２ｃの
貫通角孔１５ａに角棒材１５が挿入されることにより、
鉄心２Ａの剛性を上げることができるので、鉄心積厚が
長い場合でも鉄心の撓みを抑制できて強度向上の為の鉄
心ボリュウム減少もなくなる。そして、電磁抜板の積層
時に貫通角孔１５ａをガイドとして利用出来るので、鉄
心の積層精度が向上する。或いは、固定子枠２０の開口
窓１３をカバー１８Ａで覆うことにより回転電機が全閉
形になり、カバー１８Ａがない時は開放形とカバー１８
Ａの有無で冷却構造を変更することができる。The iron core 2A is connected to the opening window 13 of the stator frame 20.
To insert and assemble the stator frame 20
inner diameter ΦDs1 and outer diameter ΦDb of bearing brackets 5 and 6
1 eliminates dimensional restrictions, and can be set smaller than the outer diameter of the core 2A. Furthermore, it is not necessary to press-fit the core 2A into the stator frame 20 in the axial direction, so that the accompanying equipment is not required. With the provision of the flange 2c on the iron core 2A and the insertion of the square bar 15 into the through-square hole 15a of the flange 2c,
Since the rigidity of the core 2A can be increased, even when the core thickness is long, the deflection of the core can be suppressed, and the core volume for improving the strength is not reduced. And since the through-hole 15a can be used as a guide at the time of lamination | stacking of an electromagnetic blanking board, lamination precision of an iron core improves. Alternatively, by covering the opening window 13 of the stator frame 20 with the cover 18A, the rotating electric machine becomes a fully-closed type.
The cooling structure can be changed depending on the presence or absence of A.
【００２４】（第２実施例）第２実施例を図６を参照し
て説明する。前記第１実施例の開口窓１３に対して、通
風可能な通風口１８bbを設けたカバー１８Ｂを取付け、
更に吸気口５bb，６bbのある軸受ブラケット５Ｂ，６Ｂ
とする。この構成により、外気・内気を通風することが
でき、一般的な開放形の回転電機の構造を得ることがで
きる。(Second Embodiment) A second embodiment will be described with reference to FIG. A cover 18B provided with a vent hole 18bb through which air can pass is attached to the opening window 13 of the first embodiment,
In addition, bearing brackets 5B, 6B having intake ports 5bb, 6bb
And With this configuration, the outside air and the inside air can be ventilated, and a structure of a general open-type rotating electric machine can be obtained.
【００２５】（第３実施例）第３実施例を図７を参照し
て説明する。前記第１実施例の開口窓１３を塞いで、且
つ固定子枠２０の回転電機の据付支持部１４の上部に熱
交換器１９を据え付ける。更に、回転軸１１Ｃに冷却フ
ァン２１と軸受ブラケット５Ｃに風胴２２を夫々設け、
回転軸１１Ｃの回転により熱交換器１９内に冷却風を供
給する。これは、一般的な熱交換器付回転電機の構造で
ある。上記第２，３実施例によれば、前記開口窓１３を
塞ぎ方法を冷却構造により変更すれば、様々な用途でも
固定子枠２０の共用化ができる。(Third Embodiment) A third embodiment will be described with reference to FIG. The heat exchanger 19 is installed on the stator frame 20 above the installation support portion 14 of the rotating electric machine while closing the opening window 13 of the first embodiment. Further, a cooling fan 21 is provided on the rotating shaft 11C and a wind tunnel 22 is provided on the bearing bracket 5C, respectively.
Cooling air is supplied into the heat exchanger 19 by the rotation of the rotating shaft 11C. This is the structure of a general rotary electric machine with a heat exchanger. According to the second and third embodiments, if the method of closing the opening window 13 is changed by a cooling structure, the stator frame 20 can be shared for various uses.
【００２６】（第４実施例）第４実施例を図８を参照し
て説明する。前記第１実施例の構成に対し、固定子枠２
０と固定子鉄心２Ａの鍔２ｃとの間に硬質防振ゴム２３
を配置する構成である。この構成により、固定子鉄心２
Ａから発生する振動に対する固定子枠２０への影響をさ
らに低減でき、又、固定子鉄心２Ａの積層精度のバラツ
キを吸収することができる。(Fourth Embodiment) A fourth embodiment will be described with reference to FIG. Compared to the configuration of the first embodiment, the stator frame 2
0 and the flange 2c of the stator core 2A.
Are arranged. With this configuration, the stator core 2
The influence on the stator frame 20 with respect to the vibration generated from the stator core A can be further reduced, and the variation in the lamination accuracy of the stator core 2A can be absorbed.
【００２７】（第５実施例）第５実施例を図９を参照し
て説明する。前記第１実施例の構成に対し、固定子鉄心
２Ｂの鍔２ccに挿入する棒材を円筒状で割れ目１５aaの
あるＣワッシャ形状の丸棒材１５Ａとしたもので、丸棒
材１５Ａは割れ目１５aaを圧縮させて挿入後に前記割れ
目１５aaが拡張することから、丸棒材１５Ａ外周で固定
子鉄心２Ｂの丸棒材１５Ａ嵌合部に圧力を加える。この
構成により、丸棒材１５Ａと固定子鉄心２Ｂの丸棒材１
５Ａ嵌合部に隙間を広く設けることができ、丸棒材１５
Ａの挿入性が改善できる。又、丸棒材１５Ａ嵌合部に圧
力を加える為、丸棒材１５Ａの固着力を向上させると共
に固定子鉄心２Ｂの積層精度のバラツキを吸収すること
ができる。(Fifth Embodiment) A fifth embodiment will be described with reference to FIG. In contrast to the configuration of the first embodiment, the bar inserted into the flange 2cc of the stator core 2B is a cylindrical C-washer-shaped round bar 15A having a crack 15aa, and the round bar 15A has a crack 15aa. Since the crack 15aa expands after being compressed and inserted, pressure is applied to the fitting portion of the round bar 15A of the stator core 2B around the round bar 15A. With this configuration, the round bar 1 of the round bar 15A and the stator core 2B is formed.
A wide gap can be provided in the 5A fitting portion, and the round bar 15
The insertability of A can be improved. Further, since pressure is applied to the fitting portion of the round bar 15A, the fixing force of the round bar 15A can be improved, and the variation in the lamination accuracy of the stator core 2B can be absorbed.
【００２８】（第６実施例）第６実施例を図１０を参照
して説明する。前記第１実施例の構成に対し、固定子鉄
心２Ｄの鍔２ｃに挿入される角棒材１５を固定子鉄心２
Ｄの背部にも複数個配設する。この構成により、固定子
鉄心２Ｄの同一円周位置で、コア止板２と角棒材１５の
併用ができて固定子鉄心２Ｄの剛性が向上する。その
為、円筒状の固定子枠１を使用している回転電機でも撓
みを防止し強化した固定子鉄心２Ｄを採用できる。(Sixth Embodiment) A sixth embodiment will be described with reference to FIG. The square bar 15 inserted into the flange 2c of the stator core 2D is different from that of the first embodiment in that
A plurality are also arranged on the back of D. With this configuration, the core stopper plate 2 and the square bar 15 can be used together at the same circumferential position of the stator core 2D, and the rigidity of the stator core 2D is improved. Therefore, even in the rotating electric machine using the cylindrical stator frame 1, the stator core 2D which is prevented from bending and strengthened can be adopted.
【００２９】（第７実施例）第７実施例を図１１を参照
して説明する。前記第１実施例の構成に対し、固定子鉄
心２Ｅに内装される棒材１５Ｂの両端部に孔を設け、固
定子鉄心２Ｅ形成後の該孔に挿入側先端を前記棒材１５
Ｂの孔径より小さく、且つ反挿入側を棒材１５Ｂの孔径
よりも大きく構成されたピン２４を、前記孔に打ち込む
ことにより棒材１５Ｂの両端部を拡張して固定子鉄心２
Ｅに固着する。この構成により、棒材１５Ｂの固定子鉄
心２Ｅへの固着方法が簡略化される。(Seventh Embodiment) A seventh embodiment will be described with reference to FIG. In contrast to the configuration of the first embodiment, holes are provided at both ends of the bar 15B provided inside the stator core 2E, and the insertion-side tip is inserted into the hole after the stator core 2E is formed.
A pin 24 having a diameter smaller than the hole diameter of the rod B and having a hole opposite the insertion side larger than the hole diameter of the rod 15B is driven into the hole so that both ends of the rod 15B are expanded so that the stator core 2 is formed.
Stick to E. With this configuration, the method of fixing the bar 15B to the stator core 2E is simplified.
【００３０】（第８実施例）第８実施例を図１２を参照
して説明する。前記第１実施例の構成に対し、積層方向
の中央部には鍔２ｃを削除した固定子鉄心２Ｆとする。
この構成により、固定子鉄心２Ｆの外周円周方向に通風
経路を設けることができ、冷却性能が向上する。(Eighth Embodiment) An eighth embodiment will be described with reference to FIG. In contrast to the configuration of the first embodiment, a stator core 2F is provided in which a flange 2c is omitted at the center in the stacking direction.
With this configuration, a ventilation path can be provided in the circumferential direction of the outer circumference of the stator core 2F, and the cooling performance is improved.
【００３１】[0031]
【発明の効果】以上のように本発明によれば、運転時に
コギングトルクにより円周方向振動が発生しても、回転
電機の据え付け状態を安定できる。又、固定子鉄心の楕
円モード振動が発生し固定子枠へ伝達されても、固定子
枠の歪発生が回避できる。この結果、回転電機の低振動
化ができると共に振動に伴う騒音発生が防止できて、回
転電機の長寿命化・品質の安定・対環境性が改善でき
る。As described above, according to the present invention, the installation state of the rotating electric machine can be stabilized even if circumferential vibration occurs due to cogging torque during operation. Further, even if the stator core generates an elliptical mode vibration and is transmitted to the stator frame, it is possible to avoid distortion of the stator frame. As a result, the vibration of the rotating electric machine can be reduced, and noise generation due to the vibration can be prevented, so that the life of the rotating electric machine can be extended, quality can be stabilized, and environmental friendliness can be improved.
【図１】本発明の一実施例を示す回転電機の上半分縦断
面側面図、FIG. 1 is an upper half longitudinal sectional side view of a rotating electric machine showing one embodiment of the present invention;
【図２】図１の上から見た図、2 is a view from above of FIG. 1,
【図３】図１の固定子枠と固定子鉄心の断面図、FIG. 3 is a sectional view of the stator frame and the stator core of FIG. 1,
【図４】棒材の斜視図、FIG. 4 is a perspective view of a bar,
【図５】図１の平面図、FIG. 5 is a plan view of FIG. 1;
【図６】第２実施例を示す図５相当図、FIG. 6 is a diagram corresponding to FIG. 5 showing a second embodiment,
【図７】第３実施例を示す図５相当図、FIG. 7 is a diagram corresponding to FIG. 5 showing a third embodiment,
【図８】第４実施例を示す図３相当図、FIG. 8 is a view corresponding to FIG. 3, showing a fourth embodiment;
【図９】第５実施例を示す鍔への棒材挿入図、FIG. 9 is a view showing a rod material inserted into a flange, showing a fifth embodiment;
【図１０】第６実施例を示す固定子鉄心の断面図、FIG. 10 is a sectional view of a stator core according to a sixth embodiment;
【図１１】第７実施例を示す鍔と棒材の拡大図、FIG. 11 is an enlarged view of a flange and a bar showing a seventh embodiment;
【図１２】第８実施例を示す固定子鉄心の鍔の拡大図、FIG. 12 is an enlarged view of a flange of a stator core showing an eighth embodiment;
【図１３】従来例を示し（ａ）は図１相当図で、（ｂ）
は図１０相当図、13A and 13B show a conventional example, and FIG. 13A is a diagram corresponding to FIG.
Is a diagram corresponding to FIG.
【図１４】従来の図１０相当図、FIG. 14 is a diagram corresponding to FIG. 10 of the related art;
【図１５】固定子鉄心の振動モードを示す図。FIG. 15 is a diagram showing a vibration mode of a stator core.
２Ａ，２Ｂ，２Ｄ，２Ｅ，２Ｆ…固定子鉄心、２ｃ…
鍔、 ３…固定子巻線、４…固定
子、 １３…開口窓、１４…据付支
持部、 １５…角棒材、１５Ａ…丸棒材、
１５ａ…貫通角孔、１６…固定具、
１８Ａ…カバー、１８Ｂ…カバー、
１８bb…通風口、１９…熱交換器、
２０…固定子枠、２０ｂ…鉄心支持部、
２０ｃ…凹部、２３…硬質防振ゴム。2A, 2B, 2D, 2E, 2F ... stator core, 2c ...
Flange, 3 ... stator winding, 4 ... stator, 13 ... opening window, 14 ... installation support part, 15 ... square bar, 15A ... round bar,
15a: through-hole, 16: fixture,
18A ... cover, 18B ... cover,
18bb ... vent, 19 ... heat exchanger,
20 ... stator frame, 20b ... iron core support,
20c: concave portion, 23: hard anti-vibration rubber.
Claims (6)
なる固定子を固定子枠内に配置してなる回転電機におい
て、前記固定子枠の上部に開口された長さを前記固定子
の軸方向長さよりも長くし且つ幅を前記固定子鉄心外径
よりも大きくして形成の開口窓と、固定子枠の外側に設
けられた該固定子枠の軸芯水平方向に突出し軸方向に延
びて形成の据付支持部と、この据付支持部の機内側上部
に形成の凹部と、前記固定子鉄心の外側に一対設けられ
た該固定子鉄心の軸芯水平方向に突出し軸方向に延びて
形成の鍔と、この鍔内に穿孔の貫通孔と、この貫通孔内
に挿入される棒材と、固定子を固定子枠に固定する固定
具と、前記開口窓を覆うカバーとを備え、前記開口窓か
ら固定子を挿入して鍔を据付支持部の凹部に係止させ、
鍔内の貫通孔内に棒材を挿入後に据付支持部と鍔上部を
固定具の固定により固定子を固定子枠に固定後、開口窓
をカバーで覆って形成されたことを特徴とする回転電
機。1. A rotating electric machine in which a stator in which a stator winding is accommodated in a stator core is arranged in a stator frame, wherein a length opened at an upper portion of the stator frame is fixed. An opening window formed to be longer than the axial length of the stator and having a width larger than the outer diameter of the stator core, and a shaft protruding in the horizontal direction of the axis of the stator frame provided outside the stator frame. A mounting support portion extending in the direction, a recess formed in the upper part of the machine inside of the mounting support portion, and a pair of stator cores provided outside the stator core project in the horizontal direction and project in the axial direction. A flange formed to extend, a through-hole formed in the flange, a bar inserted into the through-hole, a fixture for fixing the stator to the stator frame, and a cover for covering the opening window. Provided, the stator is inserted from the opening window to lock the flange in the recess of the installation support portion,
After the rod is inserted into the through hole in the flange, the stator is fixed to the stator frame by fixing the installation support portion and the upper portion of the flange to the stator frame, and the opening window is covered with a cover. Electric machine.
請求項１記載の回転電機。2. The rotating electric machine according to claim 1, wherein the cover has a ventilation hole through which air can flow.
持部の上部に熱交換器を取り付けた請求項１記載の回転
電機。3. The rotating electric machine according to claim 1, wherein the opening window is closed and a heat exchanger is attached to an upper portion of the installation support portion of the stator frame.
硬質防振ゴムを配置した請求項１記載の回転電機。4. The rotating electric machine according to claim 1, wherein a hard vibration isolating rubber is disposed between the stator frame and a flange of the stator core.
の丸棒材とし、この丸棒材の外周で固定子鉄心を嵌合固
定した請求項１記載の回転電機。5. The rotating electric machine according to claim 1, wherein the bar is a round bar having a C-shaped washer cross section, and a stator core is fitted and fixed around the outer periphery of the round bar.
求項１記載の回転電機。6. The rotating electric machine according to claim 1, wherein the stator core has no flange at the axial center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3087198A JPH11234955A (en) | 1998-02-13 | 1998-02-13 | Dynamo-electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3087198A JPH11234955A (en) | 1998-02-13 | 1998-02-13 | Dynamo-electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11234955A true JPH11234955A (en) | 1999-08-27 |
Family
ID=12315799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3087198A Pending JPH11234955A (en) | 1998-02-13 | 1998-02-13 | Dynamo-electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11234955A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013042486A1 (en) * | 2011-09-20 | 2013-03-28 | 三菱電機株式会社 | Mechatronically integrated module |
| CN110176827A (en) * | 2019-06-14 | 2019-08-27 | 南通中菱电力科技股份有限公司 | A kind of motor fixed bin using insulated type aramid fiber plate convenient for heat dissipation |
| WO2021227483A1 (en) * | 2020-05-15 | 2021-11-18 | 广东威灵电机制造有限公司 | Rotary electric motor, and fan |
| WO2021227484A1 (en) * | 2020-05-15 | 2021-11-18 | 广东威灵电机制造有限公司 | Rotary electric motor, and fan |
-
1998
- 1998-02-13 JP JP3087198A patent/JPH11234955A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013042486A1 (en) * | 2011-09-20 | 2013-03-28 | 三菱電機株式会社 | Mechatronically integrated module |
| CN103814515A (en) * | 2011-09-20 | 2014-05-21 | 三菱电机株式会社 | Mechatronically integrated module |
| JPWO2013042486A1 (en) * | 2011-09-20 | 2015-03-26 | 三菱電機株式会社 | Mechanical and electrical integrated module |
| CN103814515B (en) * | 2011-09-20 | 2016-05-04 | 三菱电机株式会社 | Electromechanically integrated assembly |
| US9337706B2 (en) | 2011-09-20 | 2016-05-10 | Mitsubishi Electric Corporation | Mechanically and electrically integrated module |
| CN110176827A (en) * | 2019-06-14 | 2019-08-27 | 南通中菱电力科技股份有限公司 | A kind of motor fixed bin using insulated type aramid fiber plate convenient for heat dissipation |
| WO2021227483A1 (en) * | 2020-05-15 | 2021-11-18 | 广东威灵电机制造有限公司 | Rotary electric motor, and fan |
| WO2021227484A1 (en) * | 2020-05-15 | 2021-11-18 | 广东威灵电机制造有限公司 | Rotary electric motor, and fan |
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