DE10244201A1 - Electrical machine e.g. generator, with stator winding secured by wedges each fitted into 2 grooves in opposing walls of winding slot by reducing its width via elastic deformation in radial direction - Google Patents
Electrical machine e.g. generator, with stator winding secured by wedges each fitted into 2 grooves in opposing walls of winding slot by reducing its width via elastic deformation in radial direction Download PDFInfo
- Publication number
- DE10244201A1 DE10244201A1 DE2002144201 DE10244201A DE10244201A1 DE 10244201 A1 DE10244201 A1 DE 10244201A1 DE 2002144201 DE2002144201 DE 2002144201 DE 10244201 A DE10244201 A DE 10244201A DE 10244201 A1 DE10244201 A1 DE 10244201A1
- Authority
- DE
- Germany
- Prior art keywords
- wedge
- winding
- winding slot
- electrical machine
- width
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0018—Applying slot closure means in the core; Manufacture of slot closure means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
Description
TECHNISCHES GEBIETTECHNICAL TERRITORY
Die vorliegende Erfindung bezieht sich auf das Gebiet der elektrischen Maschinen. Sie betrifft eine elektrische Maschine gemäss dem Oberbegriff des Anspruchs 1.The present invention relates in the field of electrical machines. It affects one electrical machine according to the preamble of claim 1.
Eine solche Maschine ist z.B. aus
der Druckschrift
STAND DER TECHNIKSTATE OF THE ART
Bei elektrischen Maschinen wie z.B. Generatoren, bei denen im Stator in entsprechende Wicklungsnuten Wicklungsstäbe der Statorwicklung eingelegt sind, werden die Wicklungsstäbe durch Wicklungskeile in den Wicklungsnuten fixiert. Es ist im Stand der Technik eine Vielzahl von Wicklungssystemen bekannt, bei denen massive Keile mit einer unterschiedlichen Anzahl von Keilunterlagen kombiniert sind. Die Keile werden in axialer Richtung in dafür vorgesehene Keilnuten eingeschoben und verspannen dann die Wicklungsstäbe über die gesamte Breite der Wicklungsnut.For electrical machines such as Generators with corresponding winding slots in the stator winding bars the stator winding are inserted, the winding bars are through Winding wedges fixed in the winding slots. It is in the state of the art Technology known a variety of winding systems in which massive Wedges are combined with a different number of wedge pads. The wedges are inserted in the axial direction into the keyways provided for this purpose and then tension the winding bars over the entire width of the Winding groove.
Die bekannten Keilsysteme haben jedoch verschiedene Nachteile: Zum einen wird durch die Keile und die Keilunterlagen der Wärmeaustausch zwischen den oberen, direkt unterhalb des Keils liegenden Wicklungsstäben und der Umgebung behindert, was zu einer Beeinträchtigung der Kühlung führt. Zum anderen ist die Montage dieser Keilsysteme mit einem erheblichen Aufwand verbunden, weil die Keile über eine grössere Länge gegen einen zunehmenden Reibungswiderstand in die Keilnuten eingeschoben werden müssen. Schliesslich sind für die Keilunterlagen eine Vielzahl von gestanzten Streifen notwendig, die aufwändig in Material und Herstellung sind und die Montage verkomplizieren.However, the known wedge systems have different ones Disadvantages: On the one hand, the wedges and the wedge pads the heat exchange between the upper winding bars directly below the wedge and the environment, which affects the cooling. To the another is the assembly of these wedge systems with a significant Effort connected because the wedges have a longer length against an increasing Frictional resistance must be inserted into the keyways. Finally are for Wedge pads require a large number of punched strips, the elaborate in material and manufacture and complicate assembly.
DARSTELLUNG DER ERFINDUNGPRESENTATION THE INVENTION
Es ist daher Aufgabe der Erfindung, eine elektrische Maschine mit einer mit keilen fixierten Statorwicklung zu schaffen, die sich durch einen stark vereinfachten und besonders einfach und schnell zu montierenden Aufbau des Keilsystems auszeichnet, sowie ein Verfahren zu seiner Montage anzugeben.It is therefore an object of the invention an electrical machine with a stator winding fixed with wedges to create that through a simplistic and special easy and quick to assemble structure of the wedge system, and to specify a method for its assembly.
Die Aufgabe wird durch die Gesamtheit der Merkmale der Ansprüche 1 und 4 gelöst. Der Kern der Erfindung besteht darin, einen Keil zu verwenden, der sich derart elastisch verformen lässt, dass er gleichzeitig in radialer Richtung in die Wicklungsnut eingesetzt werden kann und aufgrund seiner elastischen Eigenschaften auf die Wicklungsstäbe in der Wicklungsnut drückt.The task is through the whole the characteristics of the claims 1 and 4 solved. The essence of the invention is to use a wedge that can be elastically deformed in such a way that it radial direction can be used in the winding slot and due to its elastic properties on the winding bars in the winding slot suppressed.
Gemäss einer bevorzugten Ausgestaltung der Erfindung ist der Keil als gekrümmter Streifen ausgebildet, wobei die Krümmung des Keiles zur Wicklungsnut hin konvex ausgebildet ist.According to a preferred embodiment of the Invention is the wedge as a curved one Stripes formed, the curvature of the wedge to the winding groove is convex towards.
Eine bevorzugte Ausgestaltung des erfindungsgemässen Verfahrens zeichnet sich dadurch aus, dass der Keil zunächst mit einer Längskante in eine der Keilnuten eingesetzt wird, während die andere Längskante ausserhalb der Wicklungsnut verbleibt, und dass der Keil dann unter elastischer Reduzierung seiner Breite mit der anderen Längskante einrastend in die andere Keilnut gedrückt wird.A preferred embodiment of the invention The process is characterized in that the wedge is initially with one long edge is inserted into one of the keyways while the other longitudinal edge remains outside of the winding groove, and that the wedge is then under elastic reduction of its width engages with the other longitudinal edge pressed into the other keyway becomes.
KURZE ERLÄUTERUNG DER FIGURENSHORT EXPLANATION THE FIGURES
Die Erfindung soll nachfolgend anhand
von Ausführungsbeispielen
im Zusammenhang mit der Zeichnung näher erläutert werden. Die
WEGE ZUR AUSFÜHRUNG DER ERFINDUNGWAYS TO EXECUTE THE INVENTION
In den
Zur Fixierung des Wicklungsstabes
Bei dem in
Der Montagevorgang des Keiles
Eine auf die beschriebene Weise vorgenommen Verkeilung der Wicklungsstäbe in den Wicklungsnuten zeichnet sich durch folgende Vorteile aus:
- – Der Wärmeübertragungskoeffizient für die (in der Wicklungsnut) oberen Wicklungsstäbe wird verbessert.
- – Die Montagezeit für die Statorwicklung wird verkürzt.
- – Im Vergleich zu der bisherigen Lösung wird die Menge an eingesetztem, gestanzten Material verringert.
- - The heat transfer coefficient for the upper winding bars (in the winding groove) is improved.
- - The assembly time for the stator winding is shortened.
- - The amount of punched material used is reduced compared to the previous solution.
- 1010
- Statorstator
- 1111
- Blechkörpersheet metal body
- 1212
- Wicklungsnutwinding groove
- 1313
- Wicklungsstabwinding bar
- 14,1514.15
- Keilnutkeyway
- 1616
- Keilwedge
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002144201 DE10244201A1 (en) | 2002-09-23 | 2002-09-23 | Electrical machine e.g. generator, with stator winding secured by wedges each fitted into 2 grooves in opposing walls of winding slot by reducing its width via elastic deformation in radial direction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002144201 DE10244201A1 (en) | 2002-09-23 | 2002-09-23 | Electrical machine e.g. generator, with stator winding secured by wedges each fitted into 2 grooves in opposing walls of winding slot by reducing its width via elastic deformation in radial direction |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10244201A1 true DE10244201A1 (en) | 2004-04-01 |
Family
ID=31969434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002144201 Withdrawn DE10244201A1 (en) | 2002-09-23 | 2002-09-23 | Electrical machine e.g. generator, with stator winding secured by wedges each fitted into 2 grooves in opposing walls of winding slot by reducing its width via elastic deformation in radial direction |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10244201A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2378643A2 (en) * | 2008-07-28 | 2011-10-19 | Direct Drive Systems, Inc. | Stator for an electric machine |
DE202012003643U1 (en) * | 2012-04-10 | 2012-04-23 | Continental Automotive Gmbh | Rotor for a rotating electric machine and rotating electric machine |
JP2012244719A (en) * | 2011-05-18 | 2012-12-10 | Toyota Motor Corp | Coil fixing member of rotary electric machine, and rotary electric machine |
WO2013110656A1 (en) * | 2012-01-26 | 2013-08-01 | Continental Automotive Gmbh | Rotor for a rotating electric machine |
CN106487141A (en) * | 2015-08-26 | 2017-03-08 | 现代自动车株式会社 | Armature for electric rotating machine |
US9634526B2 (en) | 2012-01-26 | 2017-04-25 | Continental Automotive Gmbh | Rotor for a rotating electric machine and rotating electric machine |
US9685833B2 (en) | 2012-01-26 | 2017-06-20 | Continental Automotive Gmbh | Rotor for a rotating electric machine and electric motor |
WO2020221871A1 (en) * | 2019-05-02 | 2020-11-05 | Festool Gmbh | Drive motor with a groove cover |
US11489396B2 (en) | 2018-11-15 | 2022-11-01 | Black 7 Decker Inc. | Winding retention insert for a brushless motor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE964161C (en) * | 1952-05-22 | 1957-05-16 | Siemens Ag | Electric machine with axial slot ventilation |
DE8226274U1 (en) * | 1982-09-17 | 1982-12-16 | Kraftwerk Union AG, 4330 Mülheim | SPRING SLIDING KEY |
DE3901230C1 (en) * | 1989-01-17 | 1990-07-05 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De |
-
2002
- 2002-09-23 DE DE2002144201 patent/DE10244201A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE964161C (en) * | 1952-05-22 | 1957-05-16 | Siemens Ag | Electric machine with axial slot ventilation |
DE8226274U1 (en) * | 1982-09-17 | 1982-12-16 | Kraftwerk Union AG, 4330 Mülheim | SPRING SLIDING KEY |
DE3901230C1 (en) * | 1989-01-17 | 1990-07-05 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8421297B2 (en) * | 2008-07-28 | 2013-04-16 | Direct Drive Systems, Inc. | Stator wedge for an electric machine |
EP2378643A2 (en) * | 2008-07-28 | 2011-10-19 | Direct Drive Systems, Inc. | Stator for an electric machine |
US8253298B2 (en) | 2008-07-28 | 2012-08-28 | Direct Drive Systems, Inc. | Slot configuration of an electric machine |
US8415854B2 (en) | 2008-07-28 | 2013-04-09 | Direct Drive Systems, Inc. | Stator for an electric machine |
JP2012244719A (en) * | 2011-05-18 | 2012-12-10 | Toyota Motor Corp | Coil fixing member of rotary electric machine, and rotary electric machine |
US9685833B2 (en) | 2012-01-26 | 2017-06-20 | Continental Automotive Gmbh | Rotor for a rotating electric machine and electric motor |
US9735642B2 (en) | 2012-01-26 | 2017-08-15 | Continental Automotive Gmbh | Rotor for a rotating electric machine |
CN104365000A (en) * | 2012-01-26 | 2015-02-18 | 大陆汽车有限公司 | Rotor for a rotating electric machine |
WO2013110656A1 (en) * | 2012-01-26 | 2013-08-01 | Continental Automotive Gmbh | Rotor for a rotating electric machine |
US9634526B2 (en) | 2012-01-26 | 2017-04-25 | Continental Automotive Gmbh | Rotor for a rotating electric machine and rotating electric machine |
DE202012003643U1 (en) * | 2012-04-10 | 2012-04-23 | Continental Automotive Gmbh | Rotor for a rotating electric machine and rotating electric machine |
CN106487141B (en) * | 2015-08-26 | 2020-01-14 | 现代自动车株式会社 | Armature for rotating electric machine |
CN106487141A (en) * | 2015-08-26 | 2017-03-08 | 现代自动车株式会社 | Armature for electric rotating machine |
US11489396B2 (en) | 2018-11-15 | 2022-11-01 | Black 7 Decker Inc. | Winding retention insert for a brushless motor |
WO2020221871A1 (en) * | 2019-05-02 | 2020-11-05 | Festool Gmbh | Drive motor with a groove cover |
CN113711472A (en) * | 2019-05-02 | 2021-11-26 | 费斯托工具有限责任公司 | Driving motor with groove covering part |
US20220224184A1 (en) * | 2019-05-02 | 2022-07-14 | Festool Gmbh | Drive motor with a groove cover |
US11894747B2 (en) * | 2019-05-02 | 2024-02-06 | Festool Gmbh | Drive motor with a groove cover |
CN113711472B (en) * | 2019-05-02 | 2024-03-08 | 费斯托工具有限责任公司 | Drive motor with slot cover |
JP7500606B2 (en) | 2019-05-02 | 2024-06-17 | フェスツール ゲーエムベーハー | Drive motor with groove cover |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: ALSTOM TECHNOLOGY LTD, BADEN, CH |
|
8110 | Request for examination paragraph 44 | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140401 |