JP2014147236A - Stator of dynamo-electric machine - Google Patents

Stator of dynamo-electric machine Download PDF

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JP2014147236A
JP2014147236A JP2013014935A JP2013014935A JP2014147236A JP 2014147236 A JP2014147236 A JP 2014147236A JP 2013014935 A JP2013014935 A JP 2013014935A JP 2013014935 A JP2013014935 A JP 2013014935A JP 2014147236 A JP2014147236 A JP 2014147236A
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stator core
elastic member
frame
stator
curved surface
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JP5843795B2 (en
Inventor
Tomoyuki Kinoshita
智行 木下
Kazuyuki Yamamoto
一之 山本
Mamoru Hayatsu
守 早津
Shuichi Otaka
秀一 尾高
Takehiko Yasujima
武彦 安島
Mitsumasa Hamazaki
光将 浜崎
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Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
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Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
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Abstract

PROBLEM TO BE SOLVED: To provide the stator of a dynamo-electric machine in which the anchoring force between the stator core and the frame is maintained in an environment where the temperature of the dynamo-electric machine is higher when using, even if the contact area of the stator core and the frame is small.SOLUTION: The stator 3 of a dynamo-electric machine is provided with a first elastic member 33 for pressing the stator core 31 against the frame 4, between the cylindrical frame 4 and the stator core 31 formed to have a square cross section perpendicular to the axial direction of the frame 4 and fitted while abutting the square corner against the inner peripheral surface 41 of the frame 4.

Description

この発明は、固定子鉄心をフレームに確実に固定するための回転電機の固定子に関するものである。   The present invention relates to a stator of a rotating electric machine for securely fixing a stator iron core to a frame.

回転電機の固定子の固定子鉄心がフレームに嵌合され、フレームに固定される構造において、軽量化への要求を背景に、フレームの材質をアルミ材とするものが多い。
この場合、アルミ材のフレームの線膨張係数と、電磁鋼板を積層して形成する固定子鉄心の線膨張係数との値が大きく異なっているため、使用温度条件が高くなると、アルミ材のフレームと固定子鉄心に隙間が発生し、固定子鉄心とフレームとの固着力を維持することが困難となる。
そこで、固定子鉄心をフレームに固定させる方法として、固定子鉄心とフレームとの間に、フレームの径方向に向かってばね性の凸状部を有する筒部材を介装する技術が提案されている（例えば、特許文献１）。
この技術によれば、高温時にフレームが膨張した場合であっても、凸状部の復元力によって生じる摩擦抵抗により固定子鉄心とフレームの固着力の低下を補うことができる。 In a structure in which a stator core of a stator of a rotating electric machine is fitted to a frame and fixed to the frame, there are many cases in which the frame is made of an aluminum material against the background of demand for weight reduction.
In this case, the values of the linear expansion coefficient of the aluminum frame and the linear expansion coefficient of the stator core formed by laminating the electromagnetic steel plates are greatly different. A gap is generated in the stator core, and it is difficult to maintain the fixing force between the stator core and the frame.
Thus, as a method of fixing the stator core to the frame, a technique has been proposed in which a cylindrical member having a spring-like convex portion is interposed between the stator core and the frame in the radial direction of the frame. (For example, patent document 1).
According to this technique, even when the frame expands at a high temperature, a decrease in the fixing force between the stator core and the frame can be compensated by the frictional resistance generated by the restoring force of the convex portion.

特開２０１０−２３３３２８号公報JP 2010-233328 A

特許文献１では、外周の形状が環状の固定子鉄心が円筒状のフレームに嵌合されており、固定子鉄心の全外周に渡って、フレームの径方向に向かってばね性の凸状部を有する筒部材を介してフレームと固定子鉄心とが接触している。
この場合、筒部材を介してフレームと固定子鉄心とが接触する面積が大きいので、固定子鉄心とフレームとの固着力を維持することができる。
しかし、円筒状のフレームに嵌合されている固定子鉄心のフレームの軸方向に対し垂直な断面が四角形状である場合、筒部材を介して固定子鉄心とフレームとが接触する面積は小さくなる。
そうすると、フレームと固定子鉄心との固着力を維持するのに必要な摩擦力を確保することが困難になるという課題があった。 In Patent Document 1, a stator core having an annular outer periphery is fitted to a cylindrical frame, and a spring-like convex portion is formed in the radial direction of the frame over the entire outer periphery of the stator core. The frame and the stator core are in contact with each other through the cylindrical member.
In this case, since the area where the frame and the stator core come into contact with each other via the cylindrical member is large, the fixing force between the stator core and the frame can be maintained.
However, when the cross section perpendicular to the axial direction of the frame of the stator core fitted to the cylindrical frame is a quadrangle, the area where the stator core and the frame come into contact with each other via the cylindrical member becomes small. .
If it does so, the subject that it became difficult to ensure the frictional force required in order to maintain the adhering force of a flame | frame and a stator core occurred.

この発明は、上記のような課題を解決するためになされたものであり、固定子鉄心とフレームとの接触面積が小さい場合であっても、使用時に回転電機の温度が高温になる環境下で、固定子鉄心とフレームとの固着力を維持できる回転電機の固定子を提供することを目的とする。   The present invention has been made to solve the above-described problems. Even when the contact area between the stator core and the frame is small, the rotating electrical machine is used in an environment where the temperature is high during use. An object of the present invention is to provide a stator for a rotating electrical machine that can maintain the fixing force between the stator core and the frame.

この発明に係る回転電機の固定子は、
円筒状のフレームと、
フレームの軸方向に対し垂直な断面が四角形状で形成され、フレームの内周面に四角形状の角部が当接した状態で嵌合された固定子鉄心と、
フレームの内周面と固定子鉄心の外周平面部との間に、固定子鉄心をフレームに押圧する第１弾性部材とを有するものである。 The stator of the rotating electrical machine according to the present invention is:
A cylindrical frame;
A stator core that has a cross section perpendicular to the axial direction of the frame formed in a quadrilateral shape and is fitted in a state in which a square corner portion is in contact with the inner peripheral surface of the frame;
A first elastic member that presses the stator core against the frame is provided between the inner peripheral surface of the frame and the outer peripheral plane portion of the stator core.

この発明に係る回転電機の固定子は、
円筒状のフレームと、
フレームの軸方向に対し垂直な断面が四角形状で形成され、フレームの内周面に四角形状の角部が当接した状態で嵌合された固定子鉄心と、
フレームの内周面と固定子鉄心の外周平面部との間に、固定子鉄心をフレームに押圧する第１弾性部材とを有するものなので、
第１弾性部材により押圧されている固定子鉄心の外周平面部と反対側の当該固定子鉄心の二つの角部がフレームの内周面に、常に一定方向へ押し当てられるため、使用時に回転電機の温度が高温になる環境下でも、固定子鉄心とフレームとの間に摩擦抵抗が生じ、固定子鉄心とフレームとの固着力を維持することができる。 The stator of the rotating electrical machine according to the present invention is:
A cylindrical frame;
A stator core that has a cross section perpendicular to the axial direction of the frame formed in a quadrilateral shape and is fitted in a state in which a square corner portion is in contact with the inner peripheral surface of the frame;
Since it has a first elastic member that presses the stator core against the frame between the inner peripheral surface of the frame and the outer peripheral plane portion of the stator core,
Since the two corners of the stator core opposite to the outer peripheral plane portion of the stator core pressed by the first elastic member are always pressed against the inner peripheral surface of the frame in a fixed direction, Even in an environment where the temperature of the stator becomes high, frictional resistance is generated between the stator core and the frame, and the fixing force between the stator core and the frame can be maintained.

この実施の形態１に係る回転電機の固定子を利用した電気掃除機用モータの断面図である。It is sectional drawing of the motor for vacuum cleaners using the stator of the rotary electric machine which concerns on this Embodiment 1. FIG. この実施の形態１に係る電気掃除機用モータの組立工程を示すフローチャートである。It is a flowchart which shows the assembly process of the motor for electric vacuum cleaners which concerns on this Embodiment 1. FIG. この実施の形態１に係る固定子鉄心をフレームに嵌合し、固定した状態を示す斜視図である。It is a perspective view which shows the state which fitted and fixed the stator core which concerns on this Embodiment 1 to the flame | frame. この実施の形態１に係る図３の断面図である。FIG. 4 is a cross-sectional view of FIG. 3 according to the first embodiment. この実施の形態１に係る固定子鉄心とフレームとの間の拡大図である。It is an enlarged view between the stator iron core and frame which concern on this Embodiment 1. FIG. この実施の形態１に係る第１弾性部材の斜視図である。It is a perspective view of the 1st elastic member which concerns on this Embodiment 1. FIG. この実施の形態２に係る固定子鉄心とフレームとの間の拡大図である。It is an enlarged view between the stator iron core and frame which concern on this Embodiment 2. FIG. この実施の形態３に係る固定子鉄心とフレームとの間の拡大図である。It is an enlarged view between the stator iron core and frame which concern on this Embodiment 3. FIG. この実施の形態３に係る第１弾性部材の斜視図である。It is a perspective view of the 1st elastic member which concerns on this Embodiment 3. FIG. この実施の形態３に係る第１弾性部材の平面図である。It is a top view of the 1st elastic member concerning this Embodiment 3. この実施の形態４に係る固定子鉄心とフレームとの間の拡大図である。It is an enlarged view between the stator iron core and frame which concern on this Embodiment 4. この実施の形態５に係る固定子鉄心とフレームとの間の拡大図である。It is an enlarged view between the stator iron core and frame which concern on this Embodiment 5. FIG. この実施の形態５に係る固定子鉄心の角部周辺の拡大図である。FIG. 10 is an enlarged view around a corner portion of a stator core according to a fifth embodiment.

実施の形態１．
以下、本願発明の実施の形態１に係る回転電機の固定子を図に基づいて説明する。
まず、電気掃除機用モータ２０の概略について説明する。
図１は、回転電機の固定子３を利用した電気掃除機用モータ２０の内部構造を示す図である。
図２は、電気掃除機用モータ２０の組立工程を示すフローチャートである。
電気掃除機用モータ２０は、回転子２と、この回転子２の外周側に配置される固定子３と、回転子２の軸方向に延びるシャフト１０の片側端部に配置されるファン１とを備えている。
固定子３の界磁巻線３２に電流が流れて磁束が発生すると、この磁束が固定子鉄心３１を磁路として透過し、回転子２が回転する。
回転子２の回転によりファン１が回転し、回転子２のシャフト１０の方向に気流が発生する。 Embodiment 1 FIG.
Hereinafter, the stator of the rotating electrical machine according to the first embodiment of the present invention will be described with reference to the drawings.
First, an outline of the electric vacuum cleaner motor 20 will be described.
FIG. 1 is a diagram illustrating an internal structure of a motor 20 for a vacuum cleaner that uses a stator 3 of a rotating electrical machine.
FIG. 2 is a flowchart showing an assembly process of the electric motor 20 for the vacuum cleaner.
The electric vacuum cleaner motor 20 includes a rotor 2, a stator 3 disposed on the outer peripheral side of the rotor 2, and a fan 1 disposed on one end of a shaft 10 extending in the axial direction of the rotor 2. It has.
When a current flows through the field winding 32 of the stator 3 and a magnetic flux is generated, the magnetic flux passes through the stator core 31 as a magnetic path, and the rotor 2 rotates.
The fan 1 is rotated by the rotation of the rotor 2, and an airflow is generated in the direction of the shaft 10 of the rotor 2.

次に、電気掃除機用モータ２０の組立工程を図２に基づいて説明する。
まず、固定子鉄心３１の焼嵌め工程について説明する（Ｓ００１）。
次に、固定子鉄心３１の外周がフレーム４の内周よりも大きいため、フレーム４を加熱することによりフレーム４の内周を広げ、固定子鉄心３１に界磁巻線３２を施された固定子３を、フレーム４に嵌合する。
次に、固定子３が、フレーム４の内周面４１の所定位置から軸方向へずれることを防止するため、フレーム４の外周面からパンチを打ってフレーム４を塑性変形させることにより、固定子３をフレーム４の内周面４１にカシメ固定する（Ｓ００２）。
次に、フレーム４の内周面４１と固定子鉄心３１の一の外周平面部との間に第１弾性部材３３を装着する（Ｓ００３）。
詳細については、後述する。
次に、回転子２のベアリング７の外周面とブラケット６の内周面とを接着し、回転子２をブラケット６に取り付ける（Ｓ００４）。
次に、回転子２を取り付したブラケット６をフレーム４に、ネジを用いて取り付ける（Ｓ００５）。
次に、カーボンブラシ８をフレーム４の側面に取り付ける（Ｓ００６）。
次に、コントロールガイド９をブラケット６の端面にネジを用いて取り付ける（Ｓ００７）。
次に、ファン１をシャフト１０の片側端部にナットを用いて固定する（Ｓ００８）。
次に、ファンガイド１１をフレーム４のフランジ部に圧入する（Ｓ００９）。
以上の工程により、電気掃除機用モータ２０が完成する。 Next, the assembly process of the electric motor 20 for a vacuum cleaner will be described based on FIG.
First, the shrink fitting process of the stator core 31 will be described (S001).
Next, since the outer periphery of the stator core 31 is larger than the inner periphery of the frame 4, the inner periphery of the frame 4 is expanded by heating the frame 4, and the stator core 31 is fixed with the field winding 32. The child 3 is fitted into the frame 4.
Next, in order to prevent the stator 3 from shifting from a predetermined position on the inner peripheral surface 41 of the frame 4 in the axial direction, a punch is punched from the outer peripheral surface of the frame 4 to plastically deform the frame 4. 3 is fixed by crimping to the inner peripheral surface 41 of the frame 4 (S002).
Next, the first elastic member 33 is mounted between the inner peripheral surface 41 of the frame 4 and one outer peripheral plane portion of the stator core 31 (S003).
Details will be described later.
Next, the outer peripheral surface of the bearing 7 of the rotor 2 and the inner peripheral surface of the bracket 6 are bonded, and the rotor 2 is attached to the bracket 6 (S004).
Next, the bracket 6 to which the rotor 2 is attached is attached to the frame 4 using screws (S005).
Next, the carbon brush 8 is attached to the side surface of the frame 4 (S006).
Next, the control guide 9 is attached to the end face of the bracket 6 using a screw (S007).
Next, the fan 1 is fixed to one end portion of the shaft 10 using a nut (S008).
Next, the fan guide 11 is press-fitted into the flange portion of the frame 4 (S009).
The vacuum cleaner motor 20 is completed through the above steps.

次に、固定子３の固定子鉄心３１がフレーム４に嵌合され、フレーム４に固定される構造について説明する。
図３は、固定子鉄心３１がフレーム４に嵌合され、フレーム４に固定された状態を示す斜視図である。
本来は、固定子鉄心３１に界磁巻線３２が施されているが、図３では、界磁巻線３２を省略している。
図４は、図３の断面図である。
固定子鉄心３１のフレーム４の軸方向に対し垂直な断面の形状は、四角形状である。
固定子鉄心３１は、固定子鉄心３１の外周の角部３１ｄ、３１ｅ、３１ｆ、３１ｇがフレーム４の内周面４１に当接した状態で、フレーム４の内周面４１に嵌合している。
固定子鉄心３１の外周平面部とフレーム４の内周面４１で囲まれた空間をそれぞれ空間ａ１、ａ２、ａ３、ａ４とする。 Next, a structure in which the stator core 31 of the stator 3 is fitted to the frame 4 and fixed to the frame 4 will be described.
FIG. 3 is a perspective view showing a state in which the stator core 31 is fitted to the frame 4 and fixed to the frame 4.
Originally, the field winding 32 is provided on the stator core 31, but the field winding 32 is omitted in FIG. 3.
4 is a cross-sectional view of FIG.
The cross-sectional shape perpendicular to the axial direction of the frame 4 of the stator core 31 is a quadrangular shape.
The stator core 31 is fitted to the inner peripheral surface 41 of the frame 4 in a state where the outer peripheral corners 31d, 31e, 31f, 31g of the stator core 31 are in contact with the inner peripheral surface 41 of the frame 4. .
Spaces surrounded by the outer peripheral plane portion of the stator core 31 and the inner peripheral surface 41 of the frame 4 are referred to as spaces a1, a2, a3, and a4, respectively.

固定子鉄心３１の空間ａ１側の外周平面部のフレーム４の周方向に対応する両端部を外周平面部３１ａ、３１ｂとする。
固定子鉄心３１の外周平面部３１ａと外周平面部３１ｂとの間に、固定子鉄心の軸方向に延びる凹部３１ｃが形成されている。
フレーム４の形状は円筒状であり、フレーム４の材質は、アルミ材とする。
また、固定子鉄心３１の外周平面部とフレーム４の内周面４１との間の空間ａ１に、第１弾性部材３３が挟持されている。 Both end portions corresponding to the circumferential direction of the frame 4 of the outer peripheral plane portion on the space a1 side of the stator core 31 are referred to as outer peripheral plane portions 31a and 31b.
A concave portion 31c extending in the axial direction of the stator core is formed between the outer peripheral flat portion 31a and the outer peripheral flat portion 31b of the stator core 31.
The shape of the frame 4 is cylindrical, and the material of the frame 4 is aluminum.
In addition, the first elastic member 33 is sandwiched in a space a <b> 1 between the outer peripheral flat portion of the stator core 31 and the inner peripheral surface 41 of the frame 4.

第１弾性部材３３について説明する。
図５は、固定子鉄心３１とフレーム４との間の空間ａ１近傍の拡大図である。
図６は、第１弾性部材３３の斜視図である。
第１弾性部材３３は、ばね性を有し、固定子鉄心３１を図５の矢印Ｘの方向に押圧し、これをフレーム４に固定させる部材である。
第１弾性部材３３は、第１押圧部３３ａ、３３ｂと、第２押圧部３３ｃと、曲面部３３ｄ、３３ｅ（特許請求の範囲では、第１曲面部という）と、第１撓み部３３ｆ、第２撓み部３３ｇ、固定部３３ｈ、３３ｉを有し、固定部３３ｉ、第１押圧部３３ａ、曲面部３３ｄ、第１撓み部３３ｆ、第２押圧部３３ｃ、第２撓み部３３ｇ、曲面部３３ｅ、第１押圧部３３ｂ、固定部３３ｈの順番で一体構成されている。
第１押圧部３３ａは、固定子鉄心３１の外周平面部３１ａを図５の矢印Ｘの方向に押圧し、同様に第１押圧部３３ｂは、固定子鉄心３１の外周平面部３１ｂを押圧する。
同様に第２押圧部３３ｃは、固定子鉄心３１の凹部３１ｃの底面を図５の矢印Ｘの方向に押圧する。 The first elastic member 33 will be described.
FIG. 5 is an enlarged view of the vicinity of the space a <b> 1 between the stator core 31 and the frame 4.
FIG. 6 is a perspective view of the first elastic member 33.
The first elastic member 33 has a spring property, and is a member that presses the stator core 31 in the direction of the arrow X in FIG.
The first elastic member 33 includes a first pressing portion 33a, 33b, a second pressing portion 33c, a curved surface portion 33d, 33e (referred to as a first curved surface portion in the claims), a first bending portion 33f, 2 bending portions 33g, fixing portions 33h, 33i, fixing portion 33i, first pressing portion 33a, curved surface portion 33d, first bending portion 33f, second pressing portion 33c, second bending portion 33g, curved surface portion 33e, The first pressing portion 33b and the fixing portion 33h are integrated in this order.
The first pressing portion 33 a presses the outer peripheral plane portion 31 a of the stator core 31 in the direction of the arrow X in FIG. 5, and similarly, the first pressing portion 33 b presses the outer peripheral plane portion 31 b of the stator core 31.
Similarly, the 2nd press part 33c presses the bottom face of the recessed part 31c of the stator core 31 in the direction of the arrow X of FIG.

曲面部３３ｄ、３３ｅは、これらにそれぞれ対向するフレーム４の内周面４１をフレーム４の径方向外側に押圧する。
第１撓み部３３ｆ、第２撓み部３３ｇは、フレーム４の周方向に突出した形状をしており、ばね性を有する。
固定部３３ｈ、３３ｉは、第１押圧部３３ａ、３３ｂの端部に、固定子鉄心の軸方向に対して垂直に突出している。
固定部３３ｈ、３３ｉは、固定子鉄心３１の軸方向の位置決めと第１弾性部材３３の落下防止の役割をなしている。 The curved surface portions 33 d and 33 e press the inner peripheral surface 41 of the frame 4 facing each other outward in the radial direction of the frame 4.
The first bent portion 33f and the second bent portion 33g have a shape protruding in the circumferential direction of the frame 4, and have a spring property.
The fixing portions 33h and 33i protrude perpendicularly to the axial direction of the stator core at the end portions of the first pressing portions 33a and 33b.
The fixing portions 33h and 33i serve to position the stator core 31 in the axial direction and prevent the first elastic member 33 from falling.

次に、Ｓ００３工程における第１弾性部材３３が、固定子鉄心３１をフレーム４に押圧する態様の詳細について説明する。
まず、第１弾性部材３３を図示しない治具によって把持し、第１弾性部材３３の第１撓み部３３ｆ、第２撓み部３３ｇを圧縮する。
次に、治具が第１弾性部材３３を把持した状態で、固定子鉄心３１の外周平面部とフレーム４の内周面４１との間の空間ａ１に挿入し、次に、治具が第１弾性部材３３を解放する。
そうすると、第１弾性部材３３の第１撓み部３３ｆ、第２撓み部３３ｇは、曲面部３３ｄ、３３ｅが支点となり、フレーム４の径方向にそれぞれ広がる。
第１弾性部材の第１撓み部３３ｆ、第２撓み部３３ｇがフレーム４の径方向に広がると、第１弾性部材３３の第１押圧部３３ａ、３３ｂが固定子鉄心３１の外周平面部３１ａ、３１ｂを押圧し、第２押圧部３３ｃが固定子鉄心３１の凹部３１ｃの底面を押圧する。
従って、第１弾性部材３３は、固定子鉄心３１の三カ所を押圧する。
よって、固定子鉄心３１は、第１弾性部材３３が押圧している固定子鉄心３１の外周平面部と反対側の角部３１ｄ、３１ｅとこれらにそれぞれ対向するフレーム４の内周面４１に押し付けられ、固定される。
また、本実施の形態では、固定子鉄心３１の外周平面部に凹部３１ｃを設けているが、凹部３１ｃを設けなくてもよい。 Next, the details of the aspect in which the first elastic member 33 in step S003 presses the stator core 31 against the frame 4 will be described.
First, the first elastic member 33 is gripped by a jig (not shown), and the first bent portion 33f and the second bent portion 33g of the first elastic member 33 are compressed.
Next, with the jig gripping the first elastic member 33, the jig is inserted into the space a1 between the outer peripheral plane portion of the stator core 31 and the inner peripheral surface 41 of the frame 4, and then the jig is 1 The elastic member 33 is released.
Then, the curved portions 33d and 33e serve as fulcrums of the first bent portion 33f and the second bent portion 33g of the first elastic member 33, and spread in the radial direction of the frame 4, respectively.
When the first bent portion 33f and the second bent portion 33g of the first elastic member spread in the radial direction of the frame 4, the first pressing portions 33a and 33b of the first elastic member 33 are the outer peripheral plane portion 31a of the stator core 31, 31b is pressed and the 2nd press part 33c presses the bottom face of the recessed part 31c of the stator core 31. FIG.
Accordingly, the first elastic member 33 presses the three portions of the stator core 31.
Therefore, the stator core 31 is pressed against the corner portions 31d and 31e on the opposite side to the outer peripheral plane portion of the stator core 31 pressed by the first elastic member 33 and the inner peripheral surface 41 of the frame 4 facing each of them. And fixed.
Moreover, in this Embodiment, although the recessed part 31c is provided in the outer peripheral plane part of the stator core 31, the recessed part 31c does not need to be provided.

以上のように、本発明の実施の形態１に係る固定子３を用いれば、使用時に回転電機の温度が高温となり、アルミ材のフレーム４と鋼材の固定子鉄心３１の線膨張係数の差により固定子鉄心３１とフレーム４との間に隙間が生じようとしても、第１弾性部材３３を空間ａ１に備え、固定子鉄心３１の角部３１ｄ、３１ｅをフレーム４の内周面４１へ押し当てることで、強い摩擦抵抗を生じ、固定子鉄心３１とフレーム４との固着力を維持することができる。
また、回転電機の起動時に固定子鉄心３１は、回転子２の強い回転反力を受け、回転しようとするが、固定子鉄心３１とフレーム４との強い摩擦抵抗により、固定子鉄心３１とフレーム４のずれも防止することができる。 As described above, when the stator 3 according to Embodiment 1 of the present invention is used, the temperature of the rotating electrical machine becomes high during use, and the difference in linear expansion coefficient between the aluminum frame 4 and the steel stator core 31 is caused. Even if a gap is generated between the stator core 31 and the frame 4, the first elastic member 33 is provided in the space a <b> 1, and the corners 31 d and 31 e of the stator core 31 are pressed against the inner peripheral surface 41 of the frame 4. Thus, strong frictional resistance is generated, and the fixing force between the stator core 31 and the frame 4 can be maintained.
The stator core 31 receives a strong rotational reaction force of the rotor 2 when the rotating electrical machine is started, and tries to rotate. However, due to the strong frictional resistance between the stator core 31 and the frame 4, the stator core 31 and the frame The shift of 4 can also be prevented.

さらに、第１弾性部材３３に第１押圧部３３ａ、３３ｂと第２押圧部３３ｃと曲面部３３ｄ、３３ｅを備えていることで、確実に固定子鉄心３１の角部３１ｄ、３１ｅをフレーム４の内周面４１に押し当てることができ、固定子鉄心３１とフレーム４との固着力を確実に維持することができる。
また、第１弾性部材３３に第１撓み部３３ｆ、第２撓み部３３ｇを備えているので、これらがフレーム４の径方向に広がることにより、固定子鉄心３１とフレーム４との固着力をさらに高めることができる。 Further, the first elastic member 33 includes the first pressing portions 33 a and 33 b, the second pressing portion 33 c, and the curved surface portions 33 d and 33 e, so that the corner portions 31 d and 31 e of the stator core 31 can be securely attached to the frame 4. It can be pressed against the inner peripheral surface 41, and the fixing force between the stator core 31 and the frame 4 can be reliably maintained.
In addition, since the first elastic member 33 includes the first bent portion 33f and the second bent portion 33g, the spreading force between the stator core 31 and the frame 4 is further increased by spreading them in the radial direction of the frame 4. Can be increased.

また、固定子鉄心３１の空間ａ１に面する外周平面部に凹部３１ｃを設けることにより、第１弾性部材３３の第２押圧部３１ｃがこの凹部３１ｃにはまり込み、固定子鉄心３１と第１弾性部材のずれを防止することができる。   Moreover, by providing the recessed part 31c in the outer peripheral plane part which faces the space a1 of the stator core 31, the 2nd press part 31c of the 1st elastic member 33 gets into this recessed part 31c, and the stator core 31 and 1st elasticity are obtained. The displacement of the member can be prevented.

実施の形態２．
以下、この発明の実施の形態２に係る回転電機の固定子を、図を用いて実施の形態１と異なる部分を中心に説明する。
実施の形態１と本実施の形態とは、第１弾性部材の形状が異なるものであり、その他の構成は実施の形態１と同様である。 Embodiment 2. FIG.
Hereinafter, the stator of the rotating electrical machine according to the second embodiment of the present invention will be described with reference to the drawings, focusing on the differences from the first embodiment.
The first embodiment is different from the present embodiment in the shape of the first elastic member, and the other configurations are the same as those in the first embodiment.

図７は、固定子鉄心３１とフレーム４との間の空間ａ１近傍の拡大図である。
第１弾性部材２３３は、第１押圧部２３３ａ、２３３ｂと、曲面部２３３ｄ、２３３ｅ（特許請求の範囲では、第１曲面部という）と、第１撓み部２３３ｆ、第２撓み部２３３ｇと、曲面撓み部２３３ｈを有し、第１押圧部２３３ａ、第１撓み部２３３ｆ、曲面部２３３ｄ、曲面撓み部２３３ｈ、曲面部２３３ｅ、第２撓み部２３３ｇ、第１押圧部２３３ｂの順番で一体構成されている。 FIG. 7 is an enlarged view of the vicinity of the space a <b> 1 between the stator core 31 and the frame 4.
The first elastic member 233 includes a first pressing portion 233a, 233b, a curved surface portion 233d, 233e (referred to as a first curved surface portion in the claims), a first bending portion 233f, a second bending portion 233g, and a curved surface. The first pressing portion 233a, the first bending portion 233f, the curved surface portion 233d, the curved surface bending portion 233h, the curved surface portion 233e, the second bending portion 233g, and the first pressing portion 233b are integrally formed. Yes.

第１押圧部２３３ａは、固定子鉄心３１の外周平面部３１ａを図７の矢印Ｘの方向に押圧し、同様に第１押圧部２３３ｂは、固定子鉄心３１の外周平面部３１ｂを押圧する。
曲面部２３３ｄ、２３３ｅは、これらにそれぞれ対向するフレーム４の内周面４１をフレーム４の径方向外側に押圧する。
第１撓み部２３３ｆ、第２撓み部２３３ｇ、フレーム４の周方向に突出した形状をしており、曲面撓み部２３３ｈは、フレーム４の径方向に突出した形状をしており、これらは、ばね性を有している。 The first pressing portion 233a presses the outer peripheral plane portion 31a of the stator core 31 in the direction of the arrow X in FIG. 7, and the first pressing portion 233b similarly presses the outer peripheral plane portion 31b of the stator core 31.
The curved surface portions 233 d and 233 e press the inner peripheral surface 41 of the frame 4 facing each of them to the outside in the radial direction of the frame 4.
The first bent portion 233f, the second bent portion 233g, and a shape protruding in the circumferential direction of the frame 4 are formed. The curved bent portion 233h is formed in a shape protruding in the radial direction of the frame 4, and these are springs. It has sex.

次に、第１弾性部材２３３が、固定子鉄心３１をフレーム４に押圧する態様について説明する。
まず、第１弾性部材２３３の第１撓み部２３３ｆ、第２撓み部２３３ｇと曲面撓み部２３３ｈの三カ所を同時に図示しない治具で把持し、第１弾性部材２３３の第１撓み部２３３ｆ、第２撓み部２３３ｇと曲面撓み部２３３ｈを圧縮する。
治具が第１弾性部材２３３を把持した状態で、固定子鉄心３１の外周平面部とフレーム４の内周面４１との間の空間ａ１に第１弾性部材２３３を挿入し、次に、治具が第１弾性部材２３３を解放する。
そうすると、第１弾性部材２３３の第１撓み部２３３ｆ、第２撓み部２３３ｇは、曲面部２３３ｄ、２３３ｅが支点となりフレーム４の径方向にそれぞれ広がり、曲面撓み部２３３ｈはフレーム４の周方向に広がる。
第１弾性部材２３３の第１撓み部２３３ｆ、第２撓み部２３３ｇがフレーム４の径方向にそれぞれ広がると、第１弾性部材２３３の第１押圧部２３３ａ、２３３ｂが固定子鉄心３１の外周平面部３１ａ、３１ｂを押圧する。
従って、第１弾性部材３３３は、固定子鉄心３１の外周平面部の二カ所を押圧する。 Next, a mode in which the first elastic member 233 presses the stator core 31 against the frame 4 will be described.
First, the first flexible portion 233f of the first elastic member 233, the second flexible portion 233g, and the curved curved portion 233h are simultaneously grasped by a jig (not shown), and the first flexible portion 233f of the first elastic member 233, The 2 bending part 233g and the curved surface bending part 233h are compressed.
With the jig holding the first elastic member 233, the first elastic member 233 is inserted into the space a1 between the outer peripheral plane portion of the stator core 31 and the inner peripheral surface 41 of the frame 4, and then the jig The tool releases the first elastic member 233.
Then, the first bent portion 233f and the second bent portion 233g of the first elastic member 233 spread in the radial direction of the frame 4 with the curved portions 233d and 233e as fulcrums, and the curved bent portion 233h spreads in the circumferential direction of the frame 4. .
When the first bent portion 233f and the second bent portion 233g of the first elastic member 233 are spread in the radial direction of the frame 4, the first pressing portions 233a and 233b of the first elastic member 233 are the outer peripheral plane portions of the stator core 31. Press 31a, 31b.
Accordingly, the first elastic member 333 presses two places on the outer peripheral plane portion of the stator core 31.

第１弾性部材２３３の曲面撓み部２３３ｈが、フレーム４の周方向に広がると、曲面撓み部２３３ｈの両側に位置する第１撓み部２３３ｆ、第２撓み部２３３ｇがフレーム４の径方向にさらに圧縮する。
そして、第１撓み部２３３ｆ、第２撓み部２３３ｇがさらにフレーム４の径方向に広がることによって、第１弾性部材２３３の第１押圧部２３３ａ、２３３ｂが固定子鉄心３１の外周平面部３１ａ、３１ｂの二カ所をさらに押圧する。
そうすると、固定子鉄心３１は、第１弾性部材２３３が押圧している固定子鉄心の外周平面部と反対側の角部３１ｄ、３１ｅとこれらにそれぞれ対向するフレーム４の内周面４１に押し付けられ、固定される。
また、第１弾性部材２３３に、固定子鉄心３１の軸方向の位置決めと第１弾性部材２３３の落下防止のために、実施の形態１の固定部３３ｈ、３３ｉのような固定部を設けてもよい。 When the curved surface bending portion 233h of the first elastic member 233 spreads in the circumferential direction of the frame 4, the first bending portion 233f and the second bending portion 233g located on both sides of the curved surface bending portion 233h are further compressed in the radial direction of the frame 4. To do.
And the 1st press part 233a, 233b of the 1st elastic member 233 becomes the outer peripheral plane part 31a, 31b of the stator core 31 by the 1st bending part 233f and the 2nd bending part 233g spreading further in the radial direction of the flame | frame 4. Further press the two places.
Then, the stator core 31 is pressed against the corner portions 31d and 31e opposite to the outer peripheral plane portion of the stator core pressed by the first elastic member 233 and the inner peripheral surface 41 of the frame 4 facing these. Fixed.
Further, the first elastic member 233 may be provided with a fixing portion such as the fixing portions 33h and 33i of the first embodiment in order to position the stator core 31 in the axial direction and prevent the first elastic member 233 from dropping. Good.

以上のように、本発明の実施の形態２に係る回転電機の固定子３によれば、上記実施の形態１と同様の効果を奏するとともに、第１弾性部材２３３は、固定子鉄心３１の外周平面部３１ａ、３１ｂの二カ所を第１弾性部材２３３の第１押圧部２３３ａ、２３３ｂで押圧する形状をしているので、固定子鉄心３１に施されている界磁巻線３２が障害となることなく、フレーム４と固定子鉄心３１との間の所定の位置に容易に装着することができる。   As described above, according to the stator 3 of the rotating electrical machine according to the second embodiment of the present invention, the same effects as those of the first embodiment can be obtained, and the first elastic member 233 can be used to Since the two flat portions 31a and 31b are pressed by the first pressing portions 233a and 233b of the first elastic member 233, the field winding 32 applied to the stator core 31 becomes an obstacle. Without being attached, it can be easily mounted at a predetermined position between the frame 4 and the stator core 31.

また、第１弾性部材２３３に曲面撓み部２３３ｈを備えているので、曲面撓み部２３３ｈが、フレーム４の周方向に広がると、曲面撓み部２３３ｈの両側に位置する第１撓み部２３３ｆ、第２撓み部２３３ｇがフレーム４の径方向にさらに圧縮し、さらにこれらがフレーム４の径方向に広がることにより、固定子鉄心３１の角部３１ｄ、３１ｅをフレーム４の内周面４１に押し当てることができるので、固定子鉄心３１とフレーム４との固着力をさらに高めることができる。
また、回転電機の起動時の強い回転反力による固定子鉄心３１とフレーム４のずれもさらに防止することもできる。 In addition, since the first elastic member 233 includes the curved bent portion 233h, when the curved bent portion 233h spreads in the circumferential direction of the frame 4, the first bent portion 233f and the second bent portion 233f located on both sides of the curved bent portion 233h. The bending portions 233g are further compressed in the radial direction of the frame 4 and further spread in the radial direction of the frame 4, whereby the corner portions 31d and 31e of the stator core 31 are pressed against the inner peripheral surface 41 of the frame 4. As a result, the fixing force between the stator core 31 and the frame 4 can be further increased.
Moreover, the shift | offset | difference of the stator core 31 and the flame | frame 4 by the strong rotational reaction force at the time of starting of a rotary electric machine can further be prevented.

実施の形態３．
以下、この発明の実施の形態３に係る回転電機の固定子を、図を用いて上記各実施の形態と異なる部分を中心に説明する。
上記各実施の形態と本実施の形態とは、第１弾性部材の形状が異なるものであり、その他の構成は上記各実施の形態と同様である。
図８は、固定子鉄心３１とフレーム４との間の空間ａ１近傍の拡大図である。
図９は、第１弾性部材３３３の斜視図である。
図１０は、第１弾性部材３３３の平面図である。
第１弾性部材３３３は、第１押圧部３３３ａ、３３３ｂと、曲面部３３３ｄ（特許請求の範囲では、第１曲面部という）と、第１撓み部３３３ｆ、第２撓み部３３３ｇと、固定部３３３ｈ、３３３ｉを有し、固定部３３３ｉ、第１押圧部３３３ａ、第１撓み部３３３ｆ、曲面部３３３ｄ、第２撓み部３３３ｇ、第１押圧部３３３ｂ、固定部３３３ｈの順番で一体構成されている。 Embodiment 3 FIG.
Hereinafter, a stator for a rotating electrical machine according to Embodiment 3 of the present invention will be described with reference to the drawings, focusing on portions that are different from the above embodiments.
Each of the above embodiments and this embodiment are different in the shape of the first elastic member, and other configurations are the same as those of the above embodiments.
FIG. 8 is an enlarged view of the vicinity of the space a <b> 1 between the stator core 31 and the frame 4.
FIG. 9 is a perspective view of the first elastic member 333.
FIG. 10 is a plan view of the first elastic member 333.
The first elastic member 333 includes a first pressing portion 333a, 333b, a curved surface portion 333d (referred to as a first curved surface portion in the claims), a first bending portion 333f, a second bending portion 333g, and a fixing portion 333h. 333i, and is integrally configured in the order of a fixing portion 333i, a first pressing portion 333a, a first bending portion 333f, a curved surface portion 333d, a second bending portion 333g, a first pressing portion 333b, and a fixing portion 333h.

第１押圧部３３３ａは、固定子鉄心３１の外周平面部３１ａを図８の矢印Ｘ方向に押圧し、同様に第１押圧部３３３ｂは、固定子鉄心３１の外周平面部３１ｂを押圧する。
曲面部３３３ｄは、これと対向するフレーム４の内周面４１をフレーム４の径方向外側に押圧する。
また、曲面部３３３ｄは、これと対向するフレーム４の内周面４１との摩擦を増やして第１弾性部材３３３を動きにくくするため、曲面部３３３ｄとフレーム４との接触面積を増加させた曲面構造としても良い。 The first pressing portion 333 a presses the outer peripheral plane portion 31 a of the stator core 31 in the direction of the arrow X in FIG. 8. Similarly, the first pressing portion 333 b presses the outer peripheral plane portion 31 b of the stator core 31.
The curved surface portion 333 d presses the inner peripheral surface 41 of the frame 4 opposed to the outer surface in the radial direction of the frame 4.
In addition, the curved surface portion 333d increases the friction with the inner peripheral surface 41 of the frame 4 opposed to the curved surface portion 333d to make the first elastic member 333 difficult to move, so that the curved surface portion has an increased contact area between the curved surface portion 333d and the frame 4. It is good also as a structure.

第１撓み部３３３ｆ、第２撓み部３３３ｇは、フレーム４の径方向に延びる部材がフレーム４の周方向に折れ曲がった形状をしており、ばね性を有する。
固定部３３３ｈ、３３３ｉは、第１押圧部３３３ａ、３３３ｂの端部に、固定子鉄心３１の軸方向に対して垂直に突出している。
固定部３３３ｈ、３３３ｉは、固定子鉄心３１の軸方向の位置決めと第１弾性部材３３３の落下防止の役割をなしている。 The first bending portion 333f and the second bending portion 333g have a shape in which a member extending in the radial direction of the frame 4 is bent in the circumferential direction of the frame 4, and has a spring property.
The fixing portions 333h and 333i protrude perpendicular to the axial direction of the stator core 31 at the end portions of the first pressing portions 333a and 333b.
The fixing parts 333h and 333i serve to position the stator core 31 in the axial direction and prevent the first elastic member 333 from falling.

第１押圧部３３３ａ、３３３ｂの固定子鉄心３１の軸方向の長さを、幅Ｌ１とする。
曲面部３３３ｄの固定子鉄心３１の軸方向の長さを、幅Ｌ２とする。
図１０に示すように、幅Ｌ１は幅Ｌ２によりも短い。
第１弾性部材３３３の形状は、曲面部３３３ｄから第１撓み部３３３ｆ、第１押圧部３３３ａに向かって固定子鉄心３１の軸方向の長さが次第に短くなっている。
同様に、曲面部３３３ｄから第２撓み部３３３ｇ、第１押圧部３３３ｂに向かって固定子鉄心３１の軸方向の長さが次第に短くなっている。 The axial length of the stator core 31 of the first pressing portions 333a and 333b is defined as a width L1.
The axial length of the stator core 31 of the curved surface portion 333d is defined as a width L2.
As shown in FIG. 10, the width L1 is shorter than the width L2.
As for the shape of the first elastic member 333, the axial length of the stator core 31 is gradually shortened from the curved surface portion 333d toward the first bending portion 333f and the first pressing portion 333a.
Similarly, the axial length of the stator core 31 gradually decreases from the curved surface portion 333d toward the second bending portion 333g and the first pressing portion 333b.

ここで、狭いスペースで固定子鉄心に所定の荷重を付加させる場合、弾性部材の板厚を厚くすれば、ばね定数が大きくなり、弾性部材の撓み代を小さく設定する必要が生じ、弾性部材の寸法管理が困難となる。
一方、弾性部材の板厚を薄くすれば、ばね定数は小さくなり、弾性部材の撓み代を大きくすることができるが、弾性部材の板厚が薄い分、素材の降伏応力を超えてしまい、所定の荷重を維持できないという問題が生じてしまう。
第１弾性部材３３３を圧縮した際の変位量が大きく、応力の集中する箇所の幅Ｌ２を応力が集中しない箇所の幅Ｌ１より大きく設定することにより、第１弾性部材を撓ませるために必要な力を調節することができる。 Here, in the case where a predetermined load is applied to the stator core in a narrow space, if the plate thickness of the elastic member is increased, the spring constant increases, and it is necessary to set the bending allowance of the elastic member small. Dimension management becomes difficult.
On the other hand, if the plate thickness of the elastic member is reduced, the spring constant becomes smaller and the bending allowance of the elastic member can be increased. However, since the plate thickness of the elastic member is thin, the yield stress of the material is exceeded and the predetermined value is exceeded. This causes a problem that the load cannot be maintained.
The amount of displacement when the first elastic member 333 is compressed is large, and the width L2 of the portion where the stress is concentrated is set larger than the width L1 of the portion where the stress is not concentrated, so that it is necessary to bend the first elastic member. The power can be adjusted.

次に、第１弾性部材３３３が、固定子鉄心３１をフレーム４に押圧する態様について説明する。
まず、第１弾性部材３３３を図示しない治具によって把持し、第１弾性部材３３３の第１撓み部３３３ｆ、３３３ｇを圧縮する。
次に、治具が第１弾性部材３３３を把持した状態で、固定子鉄心３１の外周平面部とフレーム４の内周面４１との間の空間ａ１に挿入し、次に、治具が、第１弾性部材３３３を解放する。
そうすると、第１弾性部材３３３の第１撓み部３３３ｆ、第２撓み部３３３ｇは、曲面部３３３ｄが支点となり、フレーム４の径方向にそれぞれ広がる。
第１弾性部材３３３の第１撓み部３３３ｆ、第２撓み部３３３ｇがフレーム４の径方向にそれぞれ広がると、第１弾性部材３３３の第１押圧部３３３ａ、３３３ｂが固定子鉄心３１の外周平面部３１ａ、３１ｂを押圧する。
従って、第１弾性部材３３３は、固定子鉄心３１の外周平面部の二カ所を押圧する。
固定子鉄心３１は、第１弾性部材３３３が押圧している固定子鉄心３１の外周平面部と反対側の角部３１ｄ、３１ｅとこれらにそれぞれ対向するフレーム４の内周面４１に押し付けられ、固定される。 Next, a mode in which the first elastic member 333 presses the stator core 31 against the frame 4 will be described.
First, the first elastic member 333 is gripped by a jig (not shown), and the first bending portions 333f and 333g of the first elastic member 333 are compressed.
Next, with the jig holding the first elastic member 333, the jig is inserted into the space a1 between the outer peripheral plane portion of the stator core 31 and the inner peripheral surface 41 of the frame 4, and then the jig is The first elastic member 333 is released.
If it does so, the curved surface part 333d becomes a fulcrum, and the 1st bending part 333f and the 2nd bending part 333g of the 1st elastic member 333 spread in the radial direction of the flame | frame 4, respectively.
When the first bent portion 333f and the second bent portion 333g of the first elastic member 333 spread in the radial direction of the frame 4, the first pressing portions 333a and 333b of the first elastic member 333 are the outer peripheral plane portions of the stator core 31, respectively. Press 31a, 31b.
Accordingly, the first elastic member 333 presses two places on the outer peripheral plane portion of the stator core 31.
The stator core 31 is pressed against the corner portions 31d and 31e on the opposite side to the outer peripheral plane portion of the stator core 31 pressed by the first elastic member 333 and the inner peripheral surface 41 of the frame 4 facing each of them. Fixed.

以上のように、本発明の実施の形態３に係る回転電機の固定子３によれば、上記各実施の形態と同様の効果を奏するとともに、第１弾性部材３３３に第１押圧部３３３ａ、３３３ｂと曲面部３３３ｄと第１撓み部３３３ｆ、第２撓み部３３３ｇとを備えているので、固定子鉄心３１の角部３１ｄ、３１ｅをフレーム４の内周面４１に押し当てることができることにより、使用時に回転電機の温度が高温になる環境下であっても、固定子鉄心３１とフレーム４との間に強い摩擦抵抗を生じさせ、固定子鉄心３１とフレーム４との固着力を維持することができる。
また、回転電機の起動時の強い回転反力による固定子鉄心３１とフレーム４のずれもさらに防止することができる。
また、第１弾性部材３３３の幅Ｌ２を幅Ｌ１よりも大きく設定することで、第１弾性部材３３３を撓ませるために必要な力を調節することができる。 As described above, according to the stator 3 of the rotating electrical machine according to the third embodiment of the present invention, the same effects as those of the above-described embodiments can be obtained, and the first pressing members 333a and 333b are provided on the first elastic member 333. And the curved surface portion 333d, the first bending portion 333f, and the second bending portion 333g, the corner portions 31d and 31e of the stator core 31 can be pressed against the inner peripheral surface 41 of the frame 4 and used. Even in an environment where the temperature of the rotating electrical machine sometimes becomes high, a strong frictional resistance is generated between the stator core 31 and the frame 4 to maintain the fixing force between the stator core 31 and the frame 4. it can.
Moreover, the shift | offset | difference of the stator core 31 and the flame | frame 4 by the strong rotational reaction force at the time of starting of a rotary electric machine can further be prevented.
In addition, by setting the width L2 of the first elastic member 333 to be larger than the width L1, it is possible to adjust the force required to bend the first elastic member 333.

実施の形態４．
以下、この発明の実施の形態４に係る回転電機の固定子を、図を用いて上記各実施の形態と異なる部分を中心に説明する。
上記各実施の形態と本実施の形態とは、第１弾性部材の形状が異なるものであり、その他の構成は上記各実施の形態と同様である。
図１１は、固定子鉄心３１とフレーム４との間の空間ａ１近傍の拡大図である。
第１弾性部材４３３は、押圧部４３３ｃと、曲面部４３３ｄと、撓み部４３３ｆを有する。 Embodiment 4 FIG.
Hereinafter, a stator for a rotating electrical machine according to Embodiment 4 of the present invention will be described with reference to the drawings, focusing on portions that are different from the above embodiments.
Each of the above embodiments and this embodiment are different in the shape of the first elastic member, and other configurations are the same as those of the above embodiments.
FIG. 11 is an enlarged view of the vicinity of the space a <b> 1 between the stator core 31 and the frame 4.
The first elastic member 433 includes a pressing portion 433c, a curved surface portion 433d, and a bending portion 433f.

押圧部４３３ｃは、固定子鉄心３１の固定子鉄心３１の凹部３１ｃの底面を図１１の矢印Ｘの方向に押圧する。
曲面部４３３ｄは、これと対向するフレーム４の内周面４１をフレーム４の径方向外側に押圧する。
撓み部４３３ｆは、押圧部４３３ｃと曲面部４３３ｄとの間をコイル状で形成しており、ばね性を有する。
また、撓み部４３３ｆに使用するコイル状の弾性部材は、汎用品のものでもよい。 The pressing portion 433c presses the bottom surface of the recess 31c of the stator core 31 of the stator core 31 in the direction of arrow X in FIG.
The curved surface portion 433d presses the inner peripheral surface 41 of the frame 4 opposed to the outer surface in the radial direction of the frame 4.
The bending portion 433f is formed in a coil shape between the pressing portion 433c and the curved surface portion 433d, and has a spring property.
Moreover, the coil-shaped elastic member used for the bending part 433f may be a general-purpose product.

次に、第１弾性部材４３３が、固定子鉄心３１をフレーム４に押圧する態様について説明する。
まず、第１弾性部材４３３を図示しない治具によって把持し、第１弾性部材４３３の撓み部４３３ｆを圧縮する。
次に、治具が第１弾性部材４３３を把持した状態で、固定子鉄心３１の外周平面部とフレーム４の内周面４１との間の空間ａ１に挿入し、次に、治具が第１弾性部材４３３を解放する。
そうすると、第１弾性部材４３３の撓み部４３３ｆは、曲面部４３３ｄが支点となり、フレーム４の径方向に広がる。
第１弾性部材４３３の撓み部４３３ｆがフレーム４の径方向に広がると、第１弾性部材４３３の押圧部４３３ｃが固定子鉄心３１の凹部３１ｃを押圧する。
固定子鉄心３１は、第１弾性部材４３３が押圧している固定子鉄心３１の外周平面部と反対側の角部３１ｄ、３１ｅとこれらにそれぞれ対向するフレーム４の内周面４１に押し付けられ、固定される。
本実施の形態において、固定子鉄心３１の固定子鉄心３１の外周平面部に、凹部３１ｃを設けているが、設けなくてもよい。 Next, a mode in which the first elastic member 433 presses the stator core 31 against the frame 4 will be described.
First, the first elastic member 433 is gripped by a jig (not shown), and the bending portion 433f of the first elastic member 433 is compressed.
Next, with the jig holding the first elastic member 433, the jig is inserted into the space a1 between the outer peripheral plane portion of the stator core 31 and the inner peripheral surface 41 of the frame 4, and then the jig is 1 The elastic member 433 is released.
Then, the curved portion 433d serves as a fulcrum of the bending portion 433f of the first elastic member 433, and spreads in the radial direction of the frame 4.
When the bending portion 433 f of the first elastic member 433 spreads in the radial direction of the frame 4, the pressing portion 433 c of the first elastic member 433 presses the concave portion 31 c of the stator core 31.
The stator core 31 is pressed against the corner portions 31d and 31e on the opposite side of the outer peripheral plane portion of the stator core 31 pressed by the first elastic member 433 and the inner peripheral surface 41 of the frame 4 facing each of them. Fixed.
In the present embodiment, the concave portion 31c is provided in the outer peripheral plane portion of the stator core 31 of the stator core 31, but it is not necessary to provide it.

以上のように、本発明の実施の形態４に係る回転電機の固定子３によれば、上記各実施の形態と同様の効果を奏するとともに、第１弾性部材４３３に押圧部４３３ｃと曲面部４３３ｄと撓み部４３３ｆとを備えているので、固定子鉄心３１の角部３１ｄ、３１ｅをフレーム４の内周面４１に押し当てることができることにより、使用時に回転電機の温度が高温になる環境下であっても、固定子鉄心３１とフレーム４との間に強い摩擦抵抗を生じさせ、固定子鉄心３１とフレーム４との固着力を維持することができる。
また、回転電機の起動時の強い回転反力による固定子鉄心３１とフレームのずれも防止することができる。
また、第１弾性部材４３３の撓み部４３３ｆは、汎用性が高いので、生産コストを抑えることができる。 As described above, according to the stator 3 for a rotating electrical machine according to the fourth embodiment of the present invention, the same effects as those of the above-described embodiments can be obtained, and the pressing portion 433c and the curved surface portion 433d are provided on the first elastic member 433. And the bending portion 433f, the corner portions 31d and 31e of the stator core 31 can be pressed against the inner peripheral surface 41 of the frame 4 so that the temperature of the rotating electrical machine is high during use. Even if it exists, a strong frictional resistance can be produced between the stator core 31 and the frame 4, and the adhering force between the stator core 31 and the frame 4 can be maintained.
Further, it is possible to prevent the stator core 31 and the frame from being displaced due to a strong rotational reaction force when the rotating electrical machine is started.
Moreover, since the bending part 433f of the 1st elastic member 433 has high versatility, it can suppress production cost.

実施の形態５．
以下、この発明の実施の形態５に係る回転電機の固定子を、図を用いて説明する。
本実施の形態は、上記各実施の形態に第２弾性部材が付加されたものである。
図１２は、固定子鉄心３１とフレーム４との間の空間ａ３近傍の拡大図である。
図１３は、固定子鉄心３１の角部３１ｄを拡大した図である。
第２弾性部材３４は、弾性を有し、固定子鉄心３１をフレーム４に固定させる薄板状の部材である。
第２弾性部材３４は、固定子鉄心３１の二つの角部３１ｄ、３１ｅとこれらに対向するフレーム４の内周面４１との間に介装されている。
第２弾性部材３４は、固定子鉄心３１の角部３１ｄ、３１ｅを図１３の矢印Ｙの方向に押圧する。
第２弾性部材３４は、固定子鉄心３１の角部３１ｄ、３１ｅとこれらに対向するフレーム４の内周面４１の間にのみ介装されていてもよい。 Embodiment 5 FIG.
Hereinafter, a stator for a rotary electric machine according to Embodiment 5 of the present invention will be described with reference to the drawings.
In the present embodiment, a second elastic member is added to each of the above embodiments.
FIG. 12 is an enlarged view of the vicinity of the space a <b> 3 between the stator core 31 and the frame 4.
FIG. 13 is an enlarged view of the corner portion 31 d of the stator core 31.
The second elastic member 34 has elasticity and is a thin plate-like member that fixes the stator core 31 to the frame 4.
The second elastic member 34 is interposed between the two corners 31 d and 31 e of the stator core 31 and the inner peripheral surface 41 of the frame 4 facing them.
The second elastic member 34 presses the corners 31d and 31e of the stator core 31 in the direction of arrow Y in FIG.
The second elastic member 34 may be interposed only between the corner portions 31d and 31e of the stator core 31 and the inner peripheral surface 41 of the frame 4 facing them.

電気掃除機用モータ２０は、電気掃除機用モータ２０の使用時の回転子２の回転数が４００００ｒｐｍを超え、振動が大きくなる。
この電気掃除機用モータ２０の振動の影響で、アルミ材であるフレーム４と固定子鉄心３１との間に隙間が生じると、固定子鉄心３１とフレーム４との間の接触面積が小さいため、電気掃除機用モータ２０の振動の影響で固定子鉄心３１の角部でフレーム４の内周面４１を大きく削ってしまうという問題が生じる。
フレーム４の内周面４１が固定子鉄心３１に削られると、固定子鉄心３１とフレーム４の間に隙間がさらに広がり、電気掃除機用モータ２０の振動がさらに増し、電気掃除機用モータ２０の故障の要因となる。
そこで、本実施の形態では、固定子鉄心３１は、第２弾性部材３４を介してアルミ材のフレーム４と接触しているため、電気掃除機用モータ２０の振動を第２弾性部材３４が吸収し、固定子鉄心３１とフレーム４との間に隙間が生じることを防止する。 In the vacuum cleaner motor 20, the rotation speed of the rotor 2 when the vacuum cleaner motor 20 is used exceeds 40000 rpm, and vibration increases.
When a gap is generated between the frame 4 made of aluminum and the stator core 31 due to the vibration of the electric motor 20 for the vacuum cleaner, the contact area between the stator core 31 and the frame 4 is small. There is a problem that the inner peripheral surface 41 of the frame 4 is greatly shaved at the corners of the stator core 31 due to the influence of the vibration of the electric motor 20 for the vacuum cleaner.
When the inner peripheral surface 41 of the frame 4 is scraped by the stator core 31, a gap is further widened between the stator core 31 and the frame 4, and the vibration of the vacuum cleaner motor 20 is further increased. Cause failure.
Therefore, in the present embodiment, since the stator core 31 is in contact with the aluminum frame 4 via the second elastic member 34, the second elastic member 34 absorbs vibration of the motor 20 for the vacuum cleaner. Thus, a gap is prevented from being generated between the stator core 31 and the frame 4.

以上のように、本発明の実施の形態５に係る回転電機の固定子３によれば、上記各実施の形態と同様の効果を奏するとともに、固定子鉄心３１の角部３１ｄ、３１ｅとフレーム４とが直接に接していないため、電気掃除機用モータ２０の振動の影響で、フレーム４の内周面４１が削られにくくなり、電気掃除機用モータ２０の故障の発生を防止することができる。
また、第１弾性部材３３と第２弾性部材３４を併用することにより、固定子鉄心３１とフレーム４との間にさらに強い摩擦抵抗を生じさせ、固定子鉄心３１とフレーム４との固着力を高めることができる。 As described above, according to the stator 3 of the rotating electrical machine according to the fifth embodiment of the present invention, the same effects as those of the above-described embodiments can be obtained, and the corner portions 31d and 31e of the stator core 31 and the frame 4 can be obtained. Are not in direct contact with each other, and therefore, the inner peripheral surface 41 of the frame 4 is less likely to be scraped due to the vibration of the electric motor 20 for the vacuum cleaner, and the occurrence of a failure of the electric motor 20 for the electric vacuum cleaner can be prevented. .
Further, by using both the first elastic member 33 and the second elastic member 34, a stronger frictional resistance is generated between the stator core 31 and the frame 4, and the fixing force between the stator core 31 and the frame 4 is increased. Can be increased.

尚、本発明は、その発明の範囲内において、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略することが可能である。   It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

１ ファン、２ 回転子、３ 固定子、４ フレーム、６ ブラケット、
７ ベアリング、８ カーボンブラシ、９ コントロールガイド、１０ シャフト、
１１ ファンガイド、２０ 電気掃除機用モータ、３１ 固定子鉄心、
３１ａ，３１ｂ 外周平面部、３１ｃ 凹部、３１ｄ，３１ｅ，３１ｆ，３１ｇ 角部、３２ 界磁巻線、３３，２３３，３３３，４３３ 第１弾性部材、
３３ａ，３３ｂ，２３３ａ，２３３ｂ，３３３ａ，３３３ｂ 第１押圧部、
３３ｃ 第２押圧部、４３３ｃ 押圧部、
３３ｄ，３３ｅ，２３３ｄ，２３３ｅ，３３３ｄ，４３３ｄ 曲面部、
３３ｆ，２３３ｆ，３３３ｆ 第１撓み部、３３ｇ，２３３ｇ，３３３ｇ 第２撓み部、４３３ｆ 撓み部、３３ｈ，３３ｉ，３３３ｈ，３３３ｉ 固定部、
３４ 第２弾性部材、２３３ｈ 曲面撓み部、４１ 内周面、Ｌ１，Ｌ２ 幅、
ａ１，ａ２，ａ３，ａ４ 空間、Ｘ，Ｙ 矢印。 1 fan, 2 rotors, 3 stators, 4 frames, 6 brackets,
7 Bearing, 8 Carbon brush, 9 Control guide, 10 Shaft,
11 Fan guide, 20 Motor for vacuum cleaner, 31 Stator core,
31a, 31b outer peripheral plane part, 31c concave part, 31d, 31e, 31f, 31g corner part, 32 field winding, 33, 233, 333, 433 first elastic member,
33a, 33b, 233a, 233b, 333a, 333b first pressing portion,
33c second pressing portion, 433c pressing portion,
33d, 33e, 233d, 233e, 333d, 433d curved surface portion,
33f, 233f, 333f first bending portion, 33g, 233g, 333g second bending portion, 433f bending portion, 33h, 33i, 333h, 333i fixing portion,
34 second elastic member, 233h curved surface bending portion, 41 inner peripheral surface, L1, L2 width,
a1, a2, a3, a4 space, X, Y arrows.

Claims (13)

円筒状のフレームと、
前記フレームの軸方向に対し垂直な断面が四角形状で形成され、前記フレームの内周面に前記四角形状の角部が当接した状態で嵌合された固定子鉄心と、
前記フレームの内周面と前記固定子鉄心の外周平面部との間に、前記固定子鉄心を前記フレームに押圧する第１弾性部材とを備えた回転電機の固定子。 A cylindrical frame;
A stator core that is formed in a quadrangular cross section perpendicular to the axial direction of the frame, and is fitted in a state in which the square corners are in contact with the inner peripheral surface of the frame;
A stator for a rotating electrical machine, comprising: a first elastic member that presses the stator core against the frame between an inner peripheral surface of the frame and an outer peripheral plane portion of the stator core. 前記第１弾性部材は、
前記固定子鉄心の外周平面部を押圧する押圧部と、
前記固定子鉄心の外周平面部と対向する前記フレームの内周面を押圧する曲面部とを備えた請求項１に記載の回転電機の固定子。 The first elastic member is
A pressing part that presses the outer peripheral plane part of the stator core; and
The stator of the rotating electrical machine according to claim 1, further comprising a curved surface portion that presses an inner peripheral surface of the frame facing an outer peripheral flat portion of the stator core. 前記第１弾性部材は、
前記押圧部と前記曲面部との間にばね性を有する撓み部を備えた請求項２に記載の回転電機の固定子。 The first elastic member is
The stator for a rotating electrical machine according to claim 2, further comprising a flexible portion having a spring property between the pressing portion and the curved surface portion. 前記第１弾性部材の前記押圧部は、
前記固定子鉄心の外周平面部の二カ所をそれぞれ押圧するように形成された請求項２又は請求項３に記載の回転電機の固定子。 The pressing portion of the first elastic member is
The stator of the rotating electrical machine according to claim 2 or 3, wherein the stator is formed so as to press two places on an outer peripheral flat portion of the stator core. 前記第１弾性部材の前記押圧部は、
前記固定子鉄心の外周平面部の前記フレームの周方向に対応する両端部をそれぞれ押圧する二つの第１押圧部と、
前記固定子鉄心の外周平面部の前記両端部の間の中央部を押圧する第２押圧部とを有し、
前記第１弾性部材の前記曲面部は、
前記固定子鉄心の外周平面部と対向する前記フレームの内周面の二カ所をそれぞれ押圧する二つの第１曲面部を有し、
前記第１弾性部材の前記撓み部は、
前記第２押圧部の両端の一端と一の前記第１曲面部との間にばね性を有する第１撓み部と、
前記第２押圧部の両端の他端と他の前記第１曲面部との間にばね性を有する第２撓み部とを有し、
前記第１弾性部材は、
一の前記第１押圧部、前記一の第１曲面部、前記第１撓み部、前記第２押圧部、前記第２撓み部、前記他の第１曲面部、他の前記第１押圧部の順番に一体構成されている請求項３に記載の回転電機の固定子。 The pressing portion of the first elastic member is
Two first pressing portions for respectively pressing both ends corresponding to the circumferential direction of the frame of the outer peripheral plane portion of the stator core;
A second pressing portion that presses a central portion between the both end portions of the outer peripheral flat portion of the stator core;
The curved surface portion of the first elastic member is
Two first curved surface portions respectively pressing two locations on the inner peripheral surface of the frame facing the outer peripheral flat portion of the stator core;
The bending portion of the first elastic member is
A first flexible portion having a spring property between one end of both ends of the second pressing portion and the first curved surface portion;
A second bending portion having a spring property between the other end of both ends of the second pressing portion and the other first curved surface portion;
The first elastic member is
One of the first pressing portion, the one first curved surface portion, the first bending portion, the second pressing portion, the second bending portion, the other first curved surface portion, and the other first pressing portion. The stator for a rotating electric machine according to claim 3, wherein the stator is integrally formed in order. 前記第１弾性部材の前記押圧部は、
前記固定子鉄心の外周平面部の二カ所をそれぞれ押圧する二つの第１押圧部を有し、
前記第１弾性部材の前記曲面部は、
前記固定子鉄心の外周平面部と対向する前記フレームの内周面の二カ所をそれぞれ押圧する二つの第１曲面部を有し、
前記第１弾性部材の前記撓み部は、
一の前記第１押圧部と一の前記第１曲面部との間にばね性を有する第１撓み部と、
他の前記第１押圧部と他の前記第１曲面部との間にばね性を有する第２撓み部とを有し、
前記第１弾性部材は、
前記一の第１曲面部と前記他の第１曲面部との間にばね性を有する曲面撓み部を有し、
前記第１弾性部材は、
前記一の第１押圧部、前記第１撓み部、前記一の第１曲面部、前記曲面撓み部、前記他の第１曲面部、前記第２撓み部、前記他の第１押圧部の順番に一体構成される請求項３に記載の回転電機の固定子。 The pressing portion of the first elastic member is
Having two first pressing portions that respectively press two locations on the outer peripheral plane portion of the stator core;
The curved surface portion of the first elastic member is
Two first curved surface portions respectively pressing two locations on the inner peripheral surface of the frame facing the outer peripheral flat portion of the stator core;
The bending portion of the first elastic member is
A first bending portion having a spring property between the one first pressing portion and the one first curved surface portion;
A second flexible portion having a spring property between the other first pressing portion and the other first curved surface portion;
The first elastic member is
A curved surface bending portion having a spring property between the one first curved surface portion and the other first curved surface portion;
The first elastic member is
Order of the one first pressing portion, the first bending portion, the one first curved surface portion, the curved surface bending portion, the other first curved surface portion, the second bending portion, and the other first pressing portion. The stator for a rotating electrical machine according to claim 3, wherein the stator is configured integrally. 前記第１弾性部材の前記押圧部は、
前記固定子鉄心の外周平面部の二カ所をそれぞれ押圧する二つの第１押圧部を有し、
前記第１弾性部材の前記曲面部は、
前記固定子鉄心の外周平面部と対向する前記フレームの内周面を一カ所で押圧する第１曲面部を有し、
前記第１弾性部材の前記撓み部は、
前記第１曲面部の両端の一端と一の前記第１押圧部との間にばね性を有する第１撓み部と、
前記第１曲面部の両端の他端と他の前記第１押圧部との間にばね性を有する第２撓み部とを有し、
前記第１弾性部材は、
前記一の第１押圧部、前記第１撓み部、前記第１曲面部、前記第２撓み部、前記他の第１押圧部の順番に一体構成される請求項３に記載の回転電機の固定子。 The pressing portion of the first elastic member is
Having two first pressing portions that respectively press two locations on the outer peripheral plane portion of the stator core;
The curved surface portion of the first elastic member is
A first curved surface portion that presses the inner peripheral surface of the frame facing the outer peripheral flat surface portion of the stator core in one place;
The bending portion of the first elastic member is
A first bending portion having a spring property between one end of both ends of the first curved surface portion and the one first pressing portion;
A second bending portion having a spring property between the other end of the first curved surface portion and the other first pressing portion;
The first elastic member is
The fixing of the rotating electrical machine according to claim 3, wherein the first pressing portion, the first bending portion, the first curved surface portion, the second bending portion, and the other first pressing portion are integrally formed in this order. Child. 前記固定子鉄心の外周平面部の前記中央部は、前記固定子鉄心の軸方向に形成されている凹部の底面である請求項５に記載の回転電機の固定子。 The stator of the rotating electrical machine according to claim 5, wherein the central portion of the outer peripheral flat portion of the stator core is a bottom surface of a recess formed in an axial direction of the stator core. 前記第１弾性部材の前記第１押圧部の前記固定子鉄心の軸方向の長さは、前記第１曲面部の前記固定子鉄心の軸方向の長さよりも短く形成されている請求項７に記載の回転電機の固定子。 The length of the stator core in the axial direction of the first pressing portion of the first elastic member is shorter than the length of the stator core in the axial direction of the first curved surface portion. The stator of the described rotating electrical machine. 前記撓み部は、前記フレームの周方向に突出して形成されている請求項５又は請求項６又は請求項８に記載の回転電機の固定子。 The stator of a rotating electrical machine according to claim 5, wherein the bending portion is formed to protrude in a circumferential direction of the frame. 前記第１弾性部材は、前記第１弾性部材の前記第１押圧部の端部に前記固定子鉄心の軸方向に対し垂直に突出し、前記固定子鉄心に前記第１弾性部材を固定する固定部を備えた請求項５から請求項１０のいずれか１項に記載の回転電機の固定子。 The first elastic member protrudes perpendicularly to the axial direction of the stator core at the end of the first pressing portion of the first elastic member, and fixes the first elastic member to the stator core. The stator of the rotary electric machine of any one of Claims 5-10 provided with these. 前記固定子鉄心の外周角部と前記フレームの内周面との間に挟持されている第２弾性部材を備える請求項１から請求項１１のいずれか１項に記載の回転電機の固定子。 The stator of the rotating electrical machine according to any one of claims 1 to 11, further comprising a second elastic member sandwiched between an outer peripheral corner portion of the stator core and an inner peripheral surface of the frame. 前記フレームは、アルミ製にて構成される請求項１から請求項１２のいずれか１項に記載の回転電機の固定子。 The stator of the rotating electrical machine according to any one of claims 1 to 12, wherein the frame is made of aluminum.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644545U (en) * 1979-09-17 1981-04-22
JPS60204235A (en) * 1984-03-28 1985-10-15 Hitachi Ltd Stator of small-sized rotary electric machine
JPS63182647U (en) * 1987-05-15 1988-11-24
JPH01116556U (en) * 1988-01-28 1989-08-07
JPH09215251A (en) * 1996-01-31 1997-08-15 Tec Corp Motor
JP2010233328A (en) * 2009-03-26 2010-10-14 Mitsuba Corp Brushless motor
US20100320865A1 (en) * 2007-12-03 2010-12-23 Robert Bosch Gmbh Electric motor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644545U (en) * 1979-09-17 1981-04-22
JPS60204235A (en) * 1984-03-28 1985-10-15 Hitachi Ltd Stator of small-sized rotary electric machine
JPS63182647U (en) * 1987-05-15 1988-11-24
JPH01116556U (en) * 1988-01-28 1989-08-07
JPH09215251A (en) * 1996-01-31 1997-08-15 Tec Corp Motor
US20100320865A1 (en) * 2007-12-03 2010-12-23 Robert Bosch Gmbh Electric motor
JP2010233328A (en) * 2009-03-26 2010-10-14 Mitsuba Corp Brushless motor

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