CH91227A - Rotor winding for electrical machines. - Google Patents
Rotor winding for electrical machines.Info
- Publication number
- CH91227A CH91227A CH91227DA CH91227A CH 91227 A CH91227 A CH 91227A CH 91227D A CH91227D A CH 91227DA CH 91227 A CH91227 A CH 91227A
- Authority
- CH
- Switzerland
- Prior art keywords
- winding
- electrical machines
- rotor winding
- rotor
- upper layer
- Prior art date
Links
Classifications
-
- 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
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
- H02K3/51—Fastening of winding heads, equalising connectors, or connections thereto applicable to rotors only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Description
Läuferwicklung für elektrische Maschinen. Bei Läuferwicklungen für elektrische Ma schinen, deren Stäbe Ströme höherer Perioden zahl führen, zum Beispiel bei Gleichstrom- Turbo-Generatoren, treten im Nutenkupfer namhafte zusätzliche Verluste auf, deren Ab führung durch gewöhnliche Wicklungsanord nungen nicht mehr leicht gesichert werden kann. Besonders gross sind diese Zusatzver luste in der obern Lage dieser meist in zwei Lagen ausgeführten Wicklungen.
Die vorlie gende Erfindung beruht nun darauf, dass man die Wicklungsköpfe der obern Lage so ver legt, dass zwischen den einzelnen Wicklungs köpfen (oder Gruppen von solchen) Kanäle stehen bleiben, durch welche man irgend ein Kühlmittel treibt, welches infolge der grossen Berührungsflächen und des kleinen zu über windenden Wärmegefälles grosse Energie mengen aus den Wicklungsköpfen abführen kann.
In der Zeichnung ist eine solche Wick lungsanordnung als Ausführungsbeispiel vor liegender Erfindung in zwei Ansichten ver anschaulicht.
Zwischen den Wicklungsköpfen a der obern Lage der Wicklung befinden sich Kühlkanäle c (Fig. 2), welche nach innen durch die Iso lationszwischenlage d über der untern Lage b der Wicklung und nach aussen durch die Iso lationslage e und die Bandage abgeschlossen, an beiden axialen Enden hingegen offen sind. An den Pressplatten g sind Rippen f als Ventilatorflügel ausgebildet, um zum Bei spiel bei Luft als Kühlmittel die nötige Pressung zu erzielen und die erforderliche Luftmenge durch die oben erwähnten Ka näle c in den eingezeichneten Pfeilrichtungen zu treiben. Es kann dabei, wie in Fig. 1 an gedeutet ist, die mit Vorteil oft verwendete seitliche Belüftung des Läufereisens h bei behalten und allenfalls auch besonders aus gebildet sein.
Rotor winding for electrical machines. In the case of rotor windings for electrical machines, the rods of which carry currents with a higher number of periods, for example in direct current turbo generators, considerable additional losses occur in the slot copper, the removal of which can no longer easily be ensured by conventional winding arrangements. These additional losses are particularly large in the upper layer of these windings, which are usually designed in two layers.
The present invention is based on the fact that the winding heads of the upper layer are laid so ver that between the individual winding heads (or groups of such) channels remain through which one drives any coolant, which as a result of the large contact surfaces and the small heat gradient to be overcome can dissipate large amounts of energy from the winding heads.
In the drawing, such a winding arrangement is illustrated as an exemplary embodiment of the present invention in two views.
Between the winding heads a of the upper layer of the winding are cooling channels c (Fig. 2), which are closed inwards by the insulation layer d over the lower layer b of the winding and outwards by the insulation layer e and the bandage, on both axial sides However, ends are open. On the pressure plates g ribs f are designed as fan blades in order to achieve the necessary pressure, for example with air as a coolant, and to drive the required amount of air through the above-mentioned channels c in the arrow directions. It can, as indicated in Fig. 1, the side ventilation often used with advantage of the runner iron h keep and possibly also be specially formed from.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH91227T | 1920-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH91227A true CH91227A (en) | 1921-10-17 |
Family
ID=4348571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH91227D CH91227A (en) | 1920-12-21 | 1920-12-21 | Rotor winding for electrical machines. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH91227A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519219A (en) * | 1947-08-21 | 1950-08-15 | Westinghouse Electric Corp | Rotor construction for induction motors |
DE1015914B (en) * | 1953-09-03 | 1957-09-19 | Gen Electric | Attachment of the winding heads of dynamo-electric machines |
DE1189644B (en) * | 1961-02-16 | 1965-03-25 | Siemens Ag | Holding device for the end connections in runners of electrical machines |
US3244919A (en) * | 1962-03-23 | 1966-04-05 | Philips Corp | Rotor for small electric motors |
-
1920
- 1920-12-21 CH CH91227D patent/CH91227A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519219A (en) * | 1947-08-21 | 1950-08-15 | Westinghouse Electric Corp | Rotor construction for induction motors |
DE1015914B (en) * | 1953-09-03 | 1957-09-19 | Gen Electric | Attachment of the winding heads of dynamo-electric machines |
DE1189644B (en) * | 1961-02-16 | 1965-03-25 | Siemens Ag | Holding device for the end connections in runners of electrical machines |
US3244919A (en) * | 1962-03-23 | 1966-04-05 | Philips Corp | Rotor for small electric motors |
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