JPH09149612A - Motor rotor - Google Patents
Motor rotorInfo
- Publication number
- JPH09149612A JPH09149612A JP30111195A JP30111195A JPH09149612A JP H09149612 A JPH09149612 A JP H09149612A JP 30111195 A JP30111195 A JP 30111195A JP 30111195 A JP30111195 A JP 30111195A JP H09149612 A JPH09149612 A JP H09149612A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- secondary winding
- electric motor
- groove
- resistance value
- 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
- Induction Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
(57)【要約】
【課題】 本発明は、電動機の回転子に係り、詳しくは
回転子の二次巻線の構造に関し、金型費用の削減及び生
産効率の向上を図った二次巻線の抵抗が異なる電動機の
回転子を提供することを目的としている。
【解決手段】 回転子鉄心２の外周部に軸方向に沿って
複数の溝２ａを等間隔に形成し、同溝にアルミダイカス
トにより二次巻線４を形成するとともに、前記回転子鉄
心の両側面に前記二次巻線を接続したエンドリング部６
を形成し、回転軸７を嵌合して回転子１を構成し、前記
二次巻線の外周部に前記回転軸と直交する平面に沿っ
て、同二次巻線の抵抗値を可変するための略コ字状の溝
部５を形成してなることを特徴とする。
(57) Abstract: The present invention relates to a rotor of an electric motor, and more particularly, to a structure of a secondary winding of the rotor, which is a secondary winding aiming at reduction of die cost and improvement of production efficiency. It is an object of the present invention to provide motor rotors having different resistances. SOLUTION: A plurality of grooves 2a are formed at equal intervals along an axial direction on an outer peripheral portion of a rotor core 2, and a secondary winding 4 is formed in the grooves by aluminum die casting, and both sides of the rotor core are formed. End ring portion 6 with the secondary winding connected to the surface
The rotor 1 is formed by fitting the rotating shaft 7 to the rotor 1, and the resistance value of the secondary winding is varied along the plane orthogonal to the rotating shaft on the outer peripheral portion of the secondary winding. It is characterized in that a substantially U-shaped groove portion 5 for forming is formed.
Description
【０００１】[0001]
【産業上の利用分野】本発明は電動機の回転子に係り、
詳しくは回転子の二次巻線の構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor rotor,
Specifically, it relates to the structure of the secondary winding of the rotor.
【０００２】[0002]
【従来の技術】従来、電動機の回転子１は、図４に示す
ように、回転子鉄心２の外周部に軸方向に沿って複数の
溝２ａを等間隔に形成し、前記回転子鉄心２に直接アル
ミニウム材をダイカストして、二次巻線４とエンドリン
グ部６と接続し、回転軸３を中心に挿入して形成してい
る。2. Description of the Related Art Conventionally, as shown in FIG. 4, a rotor 1 of an electric motor has a plurality of grooves 2a formed at equal intervals along an axial direction on an outer peripheral portion of a rotor iron core 2. It is formed by directly die-casting an aluminum material to connect to the secondary winding 4 and the end ring portion 6, and inserting the rotary shaft 3 in the center.
【０００３】この場合、二次巻線の抵抗の異なる回転子
を製造するには、エンドリング部の軸方向の断面積が異
なる金型を複数用いるか、比抵抗の異なるアルミ材を用
いるか、回転子鉄心の溝面積の異なる金型を用いるなど
の方法を採用していた。In this case, in order to manufacture a rotor having different resistances of the secondary winding, a plurality of dies having different axial cross-sectional areas of the end rings are used, or aluminum materials having different specific resistances are used. Methods such as using molds with different rotor core groove areas have been adopted.
【０００４】しかしながら、金型が複数必要となり、且
つその交換の工数が必要となるか、アルミ材を入れ換え
る工数が必要となり、金型費用の増大及び生産効率の低
下につながる問題となっていた。However, a plurality of molds are required, and man-hours for exchanging the molds are required, or man-hours for exchanging the aluminum material are required, which causes a problem of increasing mold cost and lowering production efficiency.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記従来の
問題点に鑑みなされたもので、電動機の回転子の二次巻
線の抵抗が異なる場合に、金型費用の削減及び生産効率
の向上を図った電動機の回転子を提供することを目的と
している。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art. When the resistance of the secondary winding of the rotor of the electric motor is different, the die cost is reduced and the production efficiency is improved. It is an object of the present invention to provide an improved motor rotor.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、回転子鉄心の外周部に軸方向に沿って複数の溝を等
間隔に形成し、同溝にアルミダイカストによる二次巻線
を形成するとともに、前記回転子鉄心の両側面に前記二
次巻線を接続したエンドリング部を形成し、その中心に
回転軸を挿入してなる電動機の回転子において、前記二
次巻線の外周部に前記回転軸と直交する平面に沿って、
同二次巻線の抵抗値を可変するための略コ字状の溝部を
形成してなることを特徴とする。To achieve the above object, a plurality of grooves are formed at equal intervals along the axial direction on the outer peripheral portion of a rotor iron core, and secondary windings made by aluminum die casting are formed in the grooves. In the rotor of the electric motor, which is formed with end ring portions connected to the secondary windings on both side surfaces of the rotor core, and the rotary shaft is inserted in the center thereof, the outer circumference of the secondary windings. Along a plane orthogonal to the rotation axis in the part,
It is characterized in that a substantially U-shaped groove for changing the resistance value of the secondary winding is formed.
【０００７】そして、前記溝部を、外周のほぼ中央に形
成してなることを特徴とする。The groove portion is formed substantially at the center of the outer circumference.
【０００８】また、前記溝部の深さにより、前記抵抗値
を調整してなることを特徴とする。Further, the resistance value is adjusted by the depth of the groove.
【０００９】あるいは、前記溝部の幅により、前記抵抗
値を調整してなることを特徴とする。さらに、前記幅
を、前記深さよりも小さく形成してなることを特徴とす
る。一方、前記溝部を、切削加工により形成してなるこ
とを特徴とする。Alternatively, the resistance value is adjusted by the width of the groove. Further, the width is formed to be smaller than the depth. On the other hand, the groove is formed by cutting.
【００１０】[0010]
【作用】上記の構成によれば、前記二次巻線の外周部に
前記回転軸と直交する平面に沿って、同二次巻線の抵抗
値を可変するための略コ字状の溝部を形成することによ
り、前記二次巻線の抵抗値を調整することができる。According to the above construction, a substantially U-shaped groove portion for varying the resistance value of the secondary winding is provided on the outer peripheral portion of the secondary winding along a plane orthogonal to the rotation axis. By forming it, the resistance value of the secondary winding can be adjusted.
【００１１】[0011]
【実施例】本発明の実施例を添付図面を参照して詳細に
説明する。ここで、従来例と同じ部分の符号は同一とす
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the accompanying drawings. Here, the same parts as those in the conventional example are denoted by the same reference numerals.
【００１２】図１は、本発明による電動機の回転子の一
実施例の平面図であり、また、図２は、図１のＡＡ’断
面に対応する拡大断面図である。図３は、図２のＢＢ’
断面に対応する要部拡大断面図である。FIG. 1 is a plan view of an embodiment of a rotor of an electric motor according to the present invention, and FIG. 2 is an enlarged sectional view corresponding to the section AA 'of FIG. FIG. 3 shows BB ′ of FIG.
It is a principal part expanded sectional view corresponding to a cross section.
【００１３】回転子鉄心２の外周部に軸方向に沿って複
数の溝２ａを等間隔に形成し、同溝にアルミダイカスト
により二次巻線４を形成するとともに、前記回転子鉄心
の両側面に前記二次巻線を接続したエンドリング部６を
形成し、回転軸７を挿入して回転子１を構成する。A plurality of grooves 2a are formed on the outer peripheral portion of the rotor core 2 at equal intervals along the axial direction, the secondary windings 4 are formed in the grooves by aluminum die casting, and both side surfaces of the rotor core are formed. The end ring portion 6 to which the secondary winding is connected is formed in the, and the rotary shaft 7 is inserted to form the rotor 1.
【００１４】ここで、前記二次巻線の外周部に前記回転
軸と直交する平面に沿って、同二次巻線の抵抗値を可変
するための略コ字状の溝部５を形成する。Here, an approximately U-shaped groove portion 5 for varying the resistance value of the secondary winding is formed along the plane orthogonal to the rotation axis on the outer peripheral portion of the secondary winding.
【００１５】そして、前記溝部を、外周のほぼ中央に形
成する。これは、渦電流による損失のバランスを保つた
めである。Then, the groove is formed substantially at the center of the outer circumference. This is to maintain the balance of losses due to eddy currents.
【００１６】また、前記溝部の深さｄにより、前記抵抗
値を調整する。Further, the resistance value is adjusted by the depth d of the groove.
【００１７】あるいは、前記溝部の幅ｗにより、前記抵
抗値を調整する。さらに、前記幅を、前記深さよりも小
さく形成する。これは、この幅を狭くすることにより、
エアギャップによる磁気回路の損失を少なくするためで
ある。一方、前記溝部を、切削加工により形成するよう
にする。Alternatively, the resistance value is adjusted by the width w of the groove. Further, the width is formed smaller than the depth. By narrowing this width,
This is to reduce the loss of the magnetic circuit due to the air gap. On the other hand, the groove is formed by cutting.
【００１８】[0018]
【発明の効果】以上のように本発明においては、前記二
次巻線の外周部に前記回転軸と直交する平面に沿って、
同二次巻線の抵抗値を可変するための略コ字状の溝部を
形成したので、電動機の回転子の二次巻線の抵抗が異な
る場合に、前記溝部を調整するだけで製造することがで
きるため、金型費用の削減及び生産効率の向上を図った
安価な特性の異なる電動機の回転子を提供することがで
きる。As described above, in the present invention, the outer peripheral portion of the secondary winding is provided along the plane orthogonal to the rotation axis,
Since a substantially U-shaped groove portion for changing the resistance value of the secondary winding is formed, when the resistance of the secondary winding of the rotor of the electric motor is different, it is necessary to manufacture the groove portion only by adjusting the groove portion. Therefore, it is possible to provide an inexpensive rotor of an electric motor having different characteristics, which is intended to reduce the die cost and improve the production efficiency.
【図１】本発明による電動機の回転子の一実施例の平面
図である。FIG. 1 is a plan view of an embodiment of a rotor of an electric motor according to the present invention.
【図２】図１におけるＡＡ’に対応する拡大断面図であ
る。FIG. 2 is an enlarged sectional view corresponding to AA ′ in FIG.
【図３】本発明による電動機の回転子の図２におけるＢ
Ｂ’に対応する要部拡大断面図である。3 B of FIG. 2 of a rotor of an electric motor according to the invention.
It is a principal part expanded sectional view corresponding to B '.
【図４】従来の電動機の回転子の一例を示す平面図であ
る。FIG. 4 is a plan view showing an example of a rotor of a conventional electric motor.
１ 回転子 ２ 回転子鉄心 ２ａ 溝 ３ 回転軸 ４ 二次巻線 ５ 溝部 ６ エンドリング部 ｄ 溝部の深さ ｗ 溝部の幅 1 Rotor 2 Rotor Iron Core 2a Groove 3 Rotating Shaft 4 Secondary Winding 5 Groove 6 End Ring Part d Groove Depth w Groove Width
Claims (6)
数の溝を等間隔に形成し、同溝にアルミダイカストによ
る二次巻線を形成するとともに、前記回転子鉄心の両側
面に前記二次巻線を接続したエンドリング部を形成し、
その中心に回転軸を挿入してなる電動機の回転子におい
て、 前記二次巻線の外周部に前記回転軸と直交する平面に沿
って、同二次巻線の抵抗値を可変するための略コ字状の
溝部を形成してなることを特徴とする電動機の回転子。1. A plurality of grooves are formed at equal intervals along an axial direction on an outer peripheral portion of a rotor core, and secondary windings formed by aluminum die casting are formed in the grooves, and both sides of the rotor core are formed. Forming an end ring portion connecting the secondary winding,
In a rotor of an electric motor having a rotary shaft inserted at its center, an outline for varying the resistance value of the secondary winding along a plane orthogonal to the rotary axis on the outer peripheral portion of the secondary winding. A rotor for an electric motor, characterized in that a U-shaped groove is formed.
なることを特徴とする電動機の回転子。2. A rotor for an electric motor, wherein the groove is formed substantially at the center of the outer circumference.
整してなることを特徴とする請求項１記載の電動機の回
転子。3. The rotor of an electric motor according to claim 1, wherein the resistance value is adjusted by the depth of the groove.
してなることを特徴とする請求項１記載の電動機の回転
子。4. The rotor of an electric motor according to claim 1, wherein the resistance value is adjusted by the width of the groove.
てなることを特徴とする請求項３、または請求項４記載
の電動機の回転子。5. The rotor for an electric motor according to claim 3, wherein the width is formed smaller than the depth.
ることを特徴とする請求項１記載の電動機の回転子。6. The rotor of an electric motor according to claim 1, wherein the groove is formed by cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30111195A JPH09149612A (en) | 1995-11-20 | 1995-11-20 | Motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30111195A JPH09149612A (en) | 1995-11-20 | 1995-11-20 | Motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09149612A true JPH09149612A (en) | 1997-06-06 |
Family
ID=17892979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30111195A Pending JPH09149612A (en) | 1995-11-20 | 1995-11-20 | Motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09149612A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834797A (en) * | 2017-12-11 | 2018-03-23 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor rotor conducting bar structure, rotor and motor |
| WO2021245881A1 (en) * | 2020-06-04 | 2021-12-09 | 三菱電機株式会社 | Secondary resistance adjusting device for die casting rotor, and method for adjusting secondary resistance of die casting rotor |
| CN114374283A (en) * | 2021-12-18 | 2022-04-19 | 浙江创兴智能电机有限公司 | Centrifugal casting motor rotor with exhaust structure and preparation method thereof |
-
1995
- 1995-11-20 JP JP30111195A patent/JPH09149612A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834797A (en) * | 2017-12-11 | 2018-03-23 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor rotor conducting bar structure, rotor and motor |
| WO2021245881A1 (en) * | 2020-06-04 | 2021-12-09 | 三菱電機株式会社 | Secondary resistance adjusting device for die casting rotor, and method for adjusting secondary resistance of die casting rotor |
| JPWO2021245881A1 (en) * | 2020-06-04 | 2021-12-09 | ||
| CN114374283A (en) * | 2021-12-18 | 2022-04-19 | 浙江创兴智能电机有限公司 | Centrifugal casting motor rotor with exhaust structure and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20040609 |