JPH05199695A - Stator frame for rotary electric machine - Google Patents
Stator frame for rotary electric machineInfo
- Publication number
- JPH05199695A JPH05199695A JP706292A JP706292A JPH05199695A JP H05199695 A JPH05199695 A JP H05199695A JP 706292 A JP706292 A JP 706292A JP 706292 A JP706292 A JP 706292A JP H05199695 A JPH05199695 A JP H05199695A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- stator frame
- stator core
- projections
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、回転電機の固定子鉄心
を支持する固定子枠に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator frame that supports a stator core of a rotating electric machine.
【０００２】[0002]
【従来の技術】従来の固定子枠の一般的な形状は、特開
昭５３−１３９１０６に示すように帯状鋼板の長手方向
に所定の間隔をおいて、長辺が幅方向に向いた複数個の
固定子鉄心鉄心嵌合用突起条をプレス等で押出加工し、
この鋼板を上記突起条が内面側にくるように筒状に機械
曲げし該鋼板の両端部を固着する方法。或いは特開昭５
６−１５０９５２に示すように、筒状の結果的に固定子
鉄心が嵌合固着される中央部をバルジ成形により成形す
るものにおいて、前記筒状体の少なくとも固定子鉄心を
嵌入する側の前記中央部に連なる開口端部の径を結果的
に前記中央部に形成される径以上に成形し、その後前記
中央部をバルジ成形して成る回転電機の固定子枠等があ
る。2. Description of the Related Art As shown in Japanese Patent Laid-Open No. 53-139106, a conventional stator frame generally has a plurality of strips whose long sides are oriented in the width direction at predetermined intervals in the longitudinal direction. Extrude the protrusions for the stator core of the
A method of mechanically bending this steel plate into a tubular shape so that the protrusions are on the inner surface side, and fixing both ends of the steel plate. Alternatively, JP-A-5
As shown in 6-150952, in the case where the central portion of the tubular body to which the stator core is fitted and fixed is formed by bulge molding, the central portion of the tubular body on which at least the stator core is fitted is formed. There is a stator frame of a rotating electric machine or the like in which the diameter of the opening end portion connected to the portion is formed to be equal to or larger than the diameter formed in the central portion, and then the central portion is bulged.
【０００３】[0003]
【発明が解決しようとする課題】従来の固定子枠におい
ては、特開昭５３−１３９１０６の場合の固定子鉄心を
支持する突起の成形と、特開昭５６−１５０９５２の場
合の固定子鉄心を嵌合固着させる中央部の成形は、いず
れも塑性加工による成形であるため固定子枠素材のスプ
リングバック等により成形後の固定子鉄心を支持する部
分の寸法精度が悪く、固定子鉄心と固定子枠が完全に密
着しないという欠点があった。また、この寸法精度の欠
点を解消するため、固定子枠成形後に固定子鉄心を支持
する部分のみ機械加工しなければならないという欠点も
あった。本発明は以上のような欠点を解消するもので、
固定子枠の突起部の機械加工をなくし鉄心と固定子枠と
の密着を良くすることを目的とする。In the conventional stator frame, the projection for supporting the stator core in the case of JP-A-53-139106 and the stator core in the case of JP-A-56-150952 are used. Since the center part that is fitted and fixed is formed by plastic processing, the dimensional accuracy of the part that supports the stator core after molding due to springback of the stator frame material etc. is poor, and the stator core and stator There was a drawback that the frame did not completely adhere. In addition, in order to solve this defect of dimensional accuracy, there is also a defect that only the portion supporting the stator core needs to be machined after the stator frame is formed. The present invention eliminates the above drawbacks,
The purpose of the present invention is to improve the close contact between the iron core and the stator frame by eliminating the machining of the protruding portion of the stator frame.
【０００４】[0004]
【課題を解決するための手段】固定子鉄心を支持する固
定子枠において、前記固定子枠の径心方向に向い前記固
定子鉄心を支持しこの固定子鉄心と非接触側の面に薄肉
となる凹部を長手方向に有する突起を複数個配設したこ
とを特徴とする回転電機の固定子枠である。In a stator frame for supporting a stator core, the stator core is supported in a radial direction of the stator frame, and a thin surface is provided on a surface not in contact with the stator core. Is a stator frame of a rotating electric machine, wherein a plurality of protrusions having the following concave portions are provided in the longitudinal direction.
【０００５】[0005]
【作用】突起に設けられた凹部は、突起成形と同時に金
型より成形加工され、その時突起の固定子鉄心と接触す
る側の面は凹の成形に伴ない、凸型形状となり、内面が
凸型形状を有する突起を数ケ所設けた固定子枠となる。
この固定子枠に固定子鉄心を挿入することにより、突起
の凸型となった内面は固定子鉄心に押されて突起の凹部
を設けた肉厚の薄くなった近傍より固定子鉄心外周と同
一形状になるように曲げられ、突起の内面は固定子鉄心
と密着する。[Function] The concave portion provided on the protrusion is molded by the mold at the same time when the protrusion is molded. At that time, the surface of the protrusion that comes into contact with the stator core becomes a convex shape due to the concave molding, and the inner surface is convex. The stator frame is provided with several protrusions having a mold shape.
By inserting the stator core into this stator frame, the convex inner surface of the projection is pushed by the stator core and the recess of the projection is provided. It is bent into a shape, and the inner surface of the protrusion makes close contact with the stator core.
【０００６】[0006]
【実施例】次に本発明の一実施例を図１乃至図６を参照
して説明する。図１は本発明の一実施例を示す固定子枠
の正面図、図２は図１の断面図、図３は固定子枠の素材
となる鋼管の正面図、図４は図３の側面図、図５は図２
の突起部分を拡大した詳細図、図６は固定子枠に固定子
鉄心を圧入した時の突起部の詳細図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS. 1 is a front view of a stator frame showing an embodiment of the present invention, FIG. 2 is a sectional view of FIG. 1, FIG. 3 is a front view of a steel pipe which is a material of the stator frame, and FIG. 4 is a side view of FIG. , FIG. 5 is FIG.
6 is an enlarged detailed view of the protruding portion of FIG. 6, and FIG. 6 is a detailed view of the protruding portion when the stator core is press-fitted into the stator frame.
【０００７】図に於いて、鉄パイプを所定の寸法に切断
または鋼板を巻いて筒状にし合せ目を溶接してできた鋼
管１に、径心方向に向って内面側２に突出した固定子鉄
心３を支持する突起４が形成されている。突起４の固定
子鉄心３の外周１０が接触する接触面５の反対側である
突起４の外周面６の中心には薄肉となる凹形状７が設け
てある。この凹形状７を設けたことにより接触面５は凸
形状９となっており、接触面５に凸形状９を有する、突
起４が鋼管１に６ケ所設けて固定子枠８が形成されてい
る。In the drawing, a stator is formed by cutting an iron pipe into a predetermined size or winding a steel plate into a tubular shape to weld a seam to a steel tube 1 and projecting radially inward toward an inner surface 2 of the stator. A protrusion 4 that supports the iron core 3 is formed. A thin concave shape 7 is provided at the center of the outer peripheral surface 6 of the protrusion 4, which is opposite to the contact surface 5 with which the outer periphery 10 of the stator core 3 of the protrusion 4 contacts. The contact surface 5 has a convex shape 9 by providing the concave shape 7, and the stator frame 8 is formed by providing the steel pipe 1 with six projections 4 having the convex shape 9 on the contact surface 5. .
【０００８】鋼管１にはいずれも図示しない金型とプレ
スを使用し、所定の位置に６ケ所の突起４を鋼管１の内
面側２に押し出して成形する。この時、同時に突起４の
外周面６の中心部に凹形状７を成形することにより、凹
形状７が成形された部分の肉厚は薄くなる。このように
して突起４の成形が完了し、図示しない金型より取出し
た固定子枠８に設けられた突起４の接触面５は凹形状７
の成形時の加工応力により接触面５は凸形状９となる。A mold and a press (not shown) are used for the steel pipe 1, and six projections 4 at predetermined positions are extruded to the inner surface side 2 of the steel pipe 1 for molding. At this time, by simultaneously forming the concave shape 7 in the central portion of the outer peripheral surface 6 of the projection 4, the thickness of the portion where the concave shape 7 is formed is thin. In this way, the molding of the protrusion 4 is completed, and the contact surface 5 of the protrusion 4 provided on the stator frame 8 taken out from the mold (not shown) has a concave shape 7.
The contact surface 5 has a convex shape 9 due to the processing stress at the time of molding.
【０００９】図示しない金型から取出した固定子枠８の
寸法ｄ1 は固定子鉄心３の寸法ｄ0に対しｄ1 ＝ｄ0 ＋
αとなるように成形されている。この時αは圧入代であ
る。また突起４の凸形状の最大寸法ｄ2 はｄ2 ＞ｄ1 と
なる。The dimension d 1 of the stator frame 8 taken out from the mold (not shown) is d 1 = d 0 + with respect to the dimension d 0 of the stator core 3.
It is molded to be α. At this time, α is the press-fitting margin. Further, the maximum dimension d 2 of the convex shape of the protrusion 4 is d 2 > d 1 .
【００１０】このようにしてできた固定子枠に固定子鉄
心３を圧入すると、突起４の接触面５の凸形状９は固定
子鉄心３に押されて、力が加わり、外周面６の中心に設
けた凹形状７の近傍から曲がり固定子鉄心３の外周１０
と同一形状になり固定子鉄心３と突起４の接触面５を完
全に密着させることのできる固定子枠８が得られる。When the stator core 3 is press-fitted into the stator frame thus formed, the convex shape 9 of the contact surface 5 of the projection 4 is pushed by the stator core 3 and a force is applied to the center of the outer peripheral surface 6. Bending from the vicinity of the concave shape 7 provided in the outer periphery 10 of the stator core 3
A stator frame 8 having the same shape as that of the stator core 3 and the contact surfaces 5 of the projections 4 can be completely brought into close contact with each other.
【００１１】[0011]
【発明の効果】本発明の固定子枠によれば、突起の固定
子鉄心との非接触面の一部に設けた凹形状の効果によ
り、固定子枠の数ケ所に設けた全突起共に固定子鉄心の
外周と突起の接触面は従来に比較し非常に向上して密着
し、固定子鉄心の固定子枠への安定した固定が可能にな
る。また、固定子鉄心と固定子枠は密着が良好なため、
接触面の機械加工は不用となる。一方、固定子鉄心と固
定子枠のさらに強固な固定のために固定子鉄心と固定子
枠を溶接で止める方法を用いる場合があるが、この場合
においても突起に設けた凹形状部は肉厚が薄くなってい
るため凹形状部を利用することによりレーザ溶接等の溶
接が容易にできる。According to the stator frame of the present invention, due to the effect of the concave shape provided in a part of the non-contact surface of the protrusion with the stator core, all the protrusions provided in several places of the stator frame are fixed. The contact surface between the outer circumference of the child core and the protrusion is much improved compared to the conventional case, and the contact is made more stable, and the stator core can be stably fixed to the stator frame. Also, since the stator core and the stator frame are in good contact,
Machining of the contact surfaces is unnecessary. On the other hand, a method of welding the stator core and the stator frame by welding may be used to more firmly fix the stator core and the stator frame.In this case as well, the concave portion provided on the protrusion is thick. Since the thickness is thin, it is possible to easily perform welding such as laser welding by using the concave portion.
【図１】本発明の一実施例を示す固定子枠の正面図、FIG. 1 is a front view of a stator frame showing an embodiment of the present invention,
【図２】図１の断面図、2 is a sectional view of FIG.
【図３】固定子枠の素材となる鋼管の正面図、FIG. 3 is a front view of a steel pipe that is a material of a stator frame,
【図４】図３の側面図、FIG. 4 is a side view of FIG.
【図５】図２の突起部分を拡大した詳細図、FIG. 5 is an enlarged detail view of the protrusion of FIG.
【図６】固定子枠に固定子鉄心を圧入した時の突起部の
詳細図。FIG. 6 is a detailed view of the protrusion when the stator core is press-fitted into the stator frame.
３…固定子鉄心、 ４…突起、 ５…接触面、
７…凹形状、８…固定子枠、 ９…凸形状、 １０
…外周。3 ... Stator core, 4 ... Protrusion, 5 ... Contact surface,
7: concave shape, 8: stator frame, 9: convex shape, 10
... outer circumference.
Claims (1)
て、前記固定子枠の径心方向に向い前記固定子鉄心を支
持しこの固定子鉄心と非接触側の面に薄肉となる凹部を
長手方向に有する突起を複数個配設したことを特徴とす
る回転電機の固定子枠。1. A stator frame for supporting a stator core, wherein the stator core is supported in a radial direction of the stator frame, and a thin recess is formed on a surface of the stator core that is not in contact with the stator core. A stator frame for a rotating electric machine, comprising a plurality of protrusions having a direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4007062A JP3050983B2 (en) | 1992-01-20 | 1992-01-20 | Stator frame of rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4007062A JP3050983B2 (en) | 1992-01-20 | 1992-01-20 | Stator frame of rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05199695A true JPH05199695A (en) | 1993-08-06 |
| JP3050983B2 JP3050983B2 (en) | 2000-06-12 |
Family
ID=11655585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4007062A Expired - Fee Related JP3050983B2 (en) | 1992-01-20 | 1992-01-20 | Stator frame of rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3050983B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006238558A (en) * | 2005-02-23 | 2006-09-07 | Toyota Motor Corp | Fixing structure in dynamo-electric machine |
| EP2017944A1 (en) | 2007-07-13 | 2009-01-21 | Dr. Fritz Faulhaber GmbH & Co. KG | Electric miniature drive and inference element and production method for same |
| WO2011042984A1 (en) * | 2009-10-09 | 2011-04-14 | トヨタ自動車株式会社 | Rotor and method for manufacturing same |
| JP2011142811A (en) * | 2010-01-08 | 2011-07-21 | Saia Burgess Murten Ag | Stator of electric motor |
| JP2014045651A (en) * | 2011-01-11 | 2014-03-13 | Denso Corp | Stator of rotary electric machine, and manufacturing method thereof |
-
1992
- 1992-01-20 JP JP4007062A patent/JP3050983B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006238558A (en) * | 2005-02-23 | 2006-09-07 | Toyota Motor Corp | Fixing structure in dynamo-electric machine |
| JP4572699B2 (en) * | 2005-02-23 | 2010-11-04 | トヨタ自動車株式会社 | Fixed structure of rotating electric machine |
| EP2017944A1 (en) | 2007-07-13 | 2009-01-21 | Dr. Fritz Faulhaber GmbH & Co. KG | Electric miniature drive and inference element and production method for same |
| US8143760B2 (en) | 2007-07-13 | 2012-03-27 | Dr. Fritz Faulhaber Gmbh & Co. Kg | Miniature electrical drive and magnetic return path element, and method for its production |
| WO2011042984A1 (en) * | 2009-10-09 | 2011-04-14 | トヨタ自動車株式会社 | Rotor and method for manufacturing same |
| CN102292898A (en) * | 2009-10-09 | 2011-12-21 | 丰田自动车株式会社 | Rotor and method for manufacturing same |
| KR101224700B1 (en) * | 2009-10-09 | 2013-01-21 | 도요타지도샤가부시키가이샤 | Rotor and method for manufacturing same |
| JP5126414B2 (en) * | 2009-10-09 | 2013-01-23 | トヨタ自動車株式会社 | Rotor and method for manufacturing the same |
| US8669686B2 (en) | 2009-10-09 | 2014-03-11 | Toyota Jidosha Kabushiki Kaisha | Rotor and method of manufacturing the rotor |
| JP2011142811A (en) * | 2010-01-08 | 2011-07-21 | Saia Burgess Murten Ag | Stator of electric motor |
| JP2014045651A (en) * | 2011-01-11 | 2014-03-13 | Denso Corp | Stator of rotary electric machine, and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3050983B2 (en) | 2000-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |