DE3421537A1 - Squirrel-cage rotor - Google Patents
Squirrel-cage rotorInfo
- Publication number
- DE3421537A1 DE3421537A1 DE19843421537 DE3421537A DE3421537A1 DE 3421537 A1 DE3421537 A1 DE 3421537A1 DE 19843421537 DE19843421537 DE 19843421537 DE 3421537 A DE3421537 A DE 3421537A DE 3421537 A1 DE3421537 A1 DE 3421537A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- cage
- short
- squirrel
- circuit rings
- 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- Withdrawn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
- 241000555745 Sciuridae Species 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/168—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having single-cage rotors
Abstract
Description
KurzschlußläuferSquirrel cage
Die Erfindung betrifft einen Kurzschlußläufer mit Käfigwicklung nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zu dessen Herstellung.The invention relates to a squirrel cage rotor with cage winding the preamble of claim 1 and a method for its production.
Bei bekannten Kurzschlußläufern enthält das mit geschlossenen Nuten versehene Läuferblechpaket in den Nuten eingebettete Käfigstäbe aus elektrisch gut leitendem Material, deren Enden über die Stirnseiten des Läuferblechpaketes vorstehen und mit kompakten Kurzschlußringen hart verlötet sind. Die Enden der Käfigstäbe ragen in eingedrehte Ringnuten in den Kurzschlußringen, die das Bett für das Hartlot bilden und mit diesem gefüllt sind, so daß sich ein relativ großer Bedarf an Hartlot ergibt. Die Kurzschlußringe und das Läuferblechpaket haben unterschiedliche Wärmeausdehnungen, so daß eine stärkere Aufweitung der Kurzschlußringe gegenüber dem Läuferblechpaket die Folge ist, deren Auswirkungen durch eine den unterschiedlichen Temperaturen und Ausdehnungskoeffizienten beider genannter Teile angepaßte Stabausladung elastisch aufgefangen wird. Die richtige Anpassung der Stabausladung ist aufwendig und verlängert die Läuferlänge. Zur Verhinderung des Aufblätterns des Läuferblechpaketes und von Schwingungen im Nutzahnbereich werden stirnseitig gesonderte komptakte Druckringe an das Läuferblechpaket angepreßt. Um ferner eine Axialverschiebung der Käfigstäbe in den Nuten des Läuferblechpaketes zu verhindern, sind sie mit dem Läuferblechpaket mechanisch fest verbunden, z.B. verstemmt oder verschweißt.In known squirrel cage rotors this includes closed grooves provided laminated rotor core in the grooves embedded cage bars made of electrically good conductive material, the ends of which protrude beyond the end faces of the laminated rotor core and are hard-soldered with compact short-circuit rings. The ends of the cage bars protrude into screwed annular grooves in the short-circuit rings, which form the bed for the brazing alloy form and are filled with this, so that there is a relatively large need for hard solder results. The short-circuit rings and the laminated rotor core have different thermal expansions, so that a greater expansion of the short-circuit rings compared to the rotor core the consequence is their effects through one of the different temperatures and expansion coefficients of both named parts adapted rod extension elastic is caught. The correct adjustment of the rod projection is complex and extended the runner length. To prevent the rotor core from peeling open and from Vibrations in the effective tooth area become separate compact pressure rings on the face pressed against the rotor core. Furthermore, an axial displacement of the cage bars to prevent in the grooves of the rotor core, they are with the rotor core mechanically firmly connected, e.g. caulked or welded.
Der Erfindung liegt die Aufgabe zugrunde, einen kürzerbauenden, einfacher herzustellenden Kurzschlußläufer der eingangs genannten Art zu schaffen, bei dem mit weniger Herstellungs- und Verarbeitungsschritten und weniger Teilen bei geringerem Hartlotbedarf ein wärmespannungsärmerer steifer Kurzschlußläufer geschaffen werden kann.The invention is based on the object of a shorter, simpler one to be produced squirrel cage of the type mentioned to create in the with less Manufacturing and processing steps and less Share a stiff squirrel-cage rotor with lower thermal stress when less brazing alloy is required can be created.
Die Lösung der Aufgabe gelingt durch die kennzeichnenden Maßnahmen des Anspruchs 1 sowie des Anspruchs 3.The task is solved through the characteristic measures of claim 1 and claim 3.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung in teilweisem Längsschnitt vereinfacht dargestellt.An embodiment of the invention is shown in the drawing in part Longitudinal section shown in simplified form.
Auf der Läuferwelle 1 ist das Läuferblechpaket 2 mit stirnseitig angepreßten Blechpaketen 4 aus Kupferblechen zwischen Sprengringen 5 an der Läuferwelle zusammengepreßt. Die wesentlich dickeren Kupferbleche 4' der als Kurzschlußringe dienenden Blechpakete 4 (nur eines dargestellt) sind entsprechend den dünneren Läuferblechen genutet und nehmen die über das Läuferblechpaket vorragenden Enden der in sie stirnseitig eingeschobenen Käfigstäbe 3 auf. Diese Enden sind in den Nuten der Blechpakete 4 hart eingelötet und pressen das Gesamtpaket am Umfang zusammen, so daß sich zwischen dem Läuferblechpaket 2 und den Blechpaketen 4 ein über die ganze Fläche verteilter Wärmekontakt ergibt, der für eine gute gleichmäßige Wärmeverteilung sorgt, so daß sich wegen der geringen Temperaturdifferenzen zwischen den Teilen aus unterschiedlichen Metallen (Eisen, Kupfer) praktisch keine Relativbewegung ergibt und die Läuferbleche auch bei warmer Käfigwicklung axial verspannt bleiben.On the rotor shaft 1, the rotor core 2 is pressed on the front side Laminated cores 4 made of copper sheets between snap rings 5 pressed together on the rotor shaft. The much thicker copper sheets 4 'of the laminated cores serving as short-circuit rings 4 (only one shown) are grooved and corresponding to the thinner rotor plates take the ends protruding over the laminated rotor core from the ends pushed into them at the front Cage bars 3. These ends are hard soldered into the grooves of the laminated core 4 and press the entire package together on the circumference, so that between the laminated rotor core 2 and the laminated cores 4 results in a thermal contact distributed over the entire surface, which ensures a good even heat distribution, so that because of the low Temperature differences between the parts made of different metals (iron, Copper) results in practically no relative movement and the rotor plates even when the temperature is warm The cage winding remains axially tensioned.
Es entfallen dabei kompakte, einer spanabhebenden Bearbeitung bedürfende Kurzschlußringe und gesonderte Druckringe.There is no need for compact machining that requires machining Short-circuit rings and separate pressure rings.
3 Patentansprüche 1 Figur - Leerseite -3 claims 1 figure - blank page -
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843421537 DE3421537A1 (en) | 1984-06-08 | 1984-06-08 | Squirrel-cage rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843421537 DE3421537A1 (en) | 1984-06-08 | 1984-06-08 | Squirrel-cage rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3421537A1 true DE3421537A1 (en) | 1985-12-12 |
Family
ID=6238011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843421537 Withdrawn DE3421537A1 (en) | 1984-06-08 | 1984-06-08 | Squirrel-cage rotor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3421537A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19542962C1 (en) * | 1995-11-17 | 1996-11-28 | Siemens Ag | Short-circuit rotor for asynchronous electrical machine |
DE19729432C1 (en) * | 1997-07-09 | 1999-01-14 | Siemens Ag | Short-circuit rotor for asynchronous machine |
DE19858138A1 (en) * | 1998-12-16 | 2000-03-09 | Siemens Ag | Electrical machine squirrel-cage rotor e.g. for rail vehicle traction motor |
DE19858135A1 (en) * | 1998-12-16 | 2000-03-09 | Siemens Ag | Electric machine squirrel-cage rotor e.g. for rail vehicle traction motor |
DE10117897A1 (en) * | 2001-04-10 | 2002-11-07 | Siemens Ag | Rotor for electromagnetic induction machines, has cage winding with press fastening; cap ring is pressed onto periphery of short circuit ring so rods are pressed into short circuit ring. |
US20120217839A1 (en) * | 2011-02-24 | 2012-08-30 | Fanuc Corporation | Squirrel-cage rotor for induction motor |
EP2782222A2 (en) | 2013-03-22 | 2014-09-24 | Wieland-Werke AG | Squirrel cage rotor and its component parts and method for producing a squirrel cage rotor |
DE102014013684A1 (en) | 2014-09-17 | 2016-03-17 | Wieland-Werke Ag | Squirrel-cage |
DE102016202264A1 (en) | 2016-02-15 | 2017-08-17 | Volkswagen Aktiengesellschaft | Rotor for an electric machine, electric machine and method for producing such a rotor |
EP3301795A1 (en) | 2016-09-30 | 2018-04-04 | Wieland-Werke AG | Method for producing a short-circuit ring |
DE102017010685A1 (en) | 2017-11-16 | 2019-05-16 | Wieland-Werke Ag | Squirrel-cage rotor and method of making a squirrel cage rotor |
DE102018001587A1 (en) * | 2018-02-28 | 2019-08-29 | Wieland-Werke Ag | Squirrel cage rotor and method of making a squirrel cage rotor |
DE102018008347A1 (en) | 2018-10-23 | 2020-04-23 | Wieland-Werke Ag | Short-circuit rotor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2361764A (en) * | 1944-06-15 | 1944-10-31 | Golden Harry | Auto mirror bracket |
DE1994744U (en) * | 1968-06-22 | 1968-10-17 | Himmelwerk A G | SHORT CIRCUIT PROTECTED AGAINST CORROSION. |
-
1984
- 1984-06-08 DE DE19843421537 patent/DE3421537A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2361764A (en) * | 1944-06-15 | 1944-10-31 | Golden Harry | Auto mirror bracket |
DE1994744U (en) * | 1968-06-22 | 1968-10-17 | Himmelwerk A G | SHORT CIRCUIT PROTECTED AGAINST CORROSION. |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19542962C1 (en) * | 1995-11-17 | 1996-11-28 | Siemens Ag | Short-circuit rotor for asynchronous electrical machine |
DE19729432C1 (en) * | 1997-07-09 | 1999-01-14 | Siemens Ag | Short-circuit rotor for asynchronous machine |
DE19858138A1 (en) * | 1998-12-16 | 2000-03-09 | Siemens Ag | Electrical machine squirrel-cage rotor e.g. for rail vehicle traction motor |
DE19858135A1 (en) * | 1998-12-16 | 2000-03-09 | Siemens Ag | Electric machine squirrel-cage rotor e.g. for rail vehicle traction motor |
DE10117897A1 (en) * | 2001-04-10 | 2002-11-07 | Siemens Ag | Rotor for electromagnetic induction machines, has cage winding with press fastening; cap ring is pressed onto periphery of short circuit ring so rods are pressed into short circuit ring. |
US20120217839A1 (en) * | 2011-02-24 | 2012-08-30 | Fanuc Corporation | Squirrel-cage rotor for induction motor |
US8791618B2 (en) * | 2011-02-24 | 2014-07-29 | Fanuc Corporation | Squirrel-cage rotor for induction motor |
EP2782222A2 (en) | 2013-03-22 | 2014-09-24 | Wieland-Werke AG | Squirrel cage rotor and its component parts and method for producing a squirrel cage rotor |
DE102013005050A1 (en) | 2013-03-22 | 2014-09-25 | Wieland-Werke Ag | Squirrel-cage runners and their individual parts, and method of making a squirrel cage rotor |
EP2999101A2 (en) | 2014-09-17 | 2016-03-23 | Wieland-Werke AG | Bypass rotor |
US10951102B2 (en) | 2014-09-17 | 2021-03-16 | Wieland-Werke Ag | Squirrel-cage rotor and method of manufacturing the same |
JP2016063740A (en) * | 2014-09-17 | 2016-04-25 | ヴィーラント ウェルケ アクチーエン ゲゼルシャフトWieland−Werke Aktiengesellschaft | Squirrel-cage rotor |
DE102014013684A1 (en) | 2014-09-17 | 2016-03-17 | Wieland-Werke Ag | Squirrel-cage |
DE102016202264A1 (en) | 2016-02-15 | 2017-08-17 | Volkswagen Aktiengesellschaft | Rotor for an electric machine, electric machine and method for producing such a rotor |
EP3301795A1 (en) | 2016-09-30 | 2018-04-04 | Wieland-Werke AG | Method for producing a short-circuit ring |
DE102016011758A1 (en) | 2016-09-30 | 2018-04-05 | Wieland-Werke Ag | Method for producing a short-circuit ring |
CN107888036A (en) * | 2016-09-30 | 2018-04-06 | 威兰德-沃克公开股份有限公司 | The manufacture method of short-circuited conducting sleeve |
DE102017010685A1 (en) | 2017-11-16 | 2019-05-16 | Wieland-Werke Ag | Squirrel-cage rotor and method of making a squirrel cage rotor |
US10819201B2 (en) | 2017-11-16 | 2020-10-27 | Wieland-Werke Ag | Squirrel-cage rotor and method for producing a squirrel-cage rotor |
DE102018001587A1 (en) * | 2018-02-28 | 2019-08-29 | Wieland-Werke Ag | Squirrel cage rotor and method of making a squirrel cage rotor |
DE102018008347A1 (en) | 2018-10-23 | 2020-04-23 | Wieland-Werke Ag | Short-circuit rotor |
EP3644481A1 (en) | 2018-10-23 | 2020-04-29 | Wieland-Werke AG | Squirrel cage rotor |
US11108309B2 (en) | 2018-10-23 | 2021-08-31 | Wieland-Werke Ag | Squirrel cage rotor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8130 | Withdrawal |