DE638211C - Multi-bar winding for AC machines with an uneven number of bars per slot - Google Patents
Multi-bar winding for AC machines with an uneven number of bars per slotInfo
- Publication number
- DE638211C DE638211C DEA74985D DEA0074985D DE638211C DE 638211 C DE638211 C DE 638211C DE A74985 D DEA74985 D DE A74985D DE A0074985 D DEA0074985 D DE A0074985D DE 638211 C DE638211 C DE 638211C
- Authority
- DE
- Germany
- Prior art keywords
- winding
- layer
- layer winding
- rods
- rod
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Description
Mit steigender Spannung bei gegebener Maschinengröße ist es erforderlich, die Leiterzahl je Nut zu erhöhen. Man hat solche Wicklungen als fortlaufende einschichtige 5 oder zweischichtige Spulenwicklung ausgeführt, deren Wickelköpfe in zwei oder mehreren Ebenen angeordnet sind. Aus ,manchen Gründen ist es vorteilhaft, statt derartiger Spulenwicklungen Stabwicklungen zu verwenden, bei denen die Verbindungsbügel und die Stäbe gesondert hergestellt werden. Solche lösbaren Bügel gewähren eine höhere Stabilität gegen Kurzschlußkräfte und erleichtern die Reparatur. Man hat auch Stabwicklungen mit ungerader Zahl von Leitern je Nut vorgeschlagen, deren Verbindung ebenfalls nach einem für die ganze Wicklung einheitlichen System erfolgte.With increasing voltage for a given machine size, it is necessary to increase the number of conductors to increase per groove. Such windings have been designed as a continuous single-layer 5 or two-layer coil winding, whose winding heads are arranged in two or more levels. From, some For reasons, it is advantageous to use bar windings instead of such coil windings, in which the connecting bracket and the rods are manufactured separately. Such Detachable brackets provide greater stability against short-circuit forces and make it easier the repair. Bar windings with an odd number of conductors per slot have also been proposed, their connection was also carried out according to a system that was uniform for the entire winding.
Gegenüber solchen bekannten Stabwicklungen sollen die in ungerader Zahl je Nut vorhandenen Stäbe nach einer neuen Regel zu einer Wicklung verbunden sein, die eine günstigere Auslegung gestattet. Erfindungsgemäß sind alle an gleicher Stelle der Nut paarweise übereinanderliegende Stäbe für sich zu Zweischichtwicklungen und die verbleibenden Einzelstäbe für sich zu einer Einschichtwicklung verbunden. Die Zweischichtwicklungen sind dann miteinander und mit der Einschichtwicklung zu einer gemeinsamen Wicklung vereinigt. Auf diese Weise läßt sich z. B. eine Dreistabwicklung ausführen, die aus einer Zweischichtwicklung und einer Einschichtwicklung besteht.Compared to such known bar windings, the odd number per slot should be present According to a new rule, bars are connected to form a winding, which is a more favorable one Interpretation permitted. According to the invention, all are in pairs at the same point in the groove Stacked bars for themselves to form two-layer windings and the remaining individual bars connected to a single-layer winding. The two-layer windings are then with each other and with the single-layer winding united into a common winding. In this way, z. Legs Execute a three-layer winding consisting of a two-layer winding and a single-layer winding consists.
Ordnet man bei so ausgeführten Wicklungen diejenigen Einzelstäbe, welche nach Art der Einschichtwicklung verbunden sind, an der Bohrung an und legt die zugehörigen Verbindungsbügel in die von der Stirnseite des wirksamen Eisens am weitesten entfernte Ebene, so ergibt sich eine wesentliche Ersparnis an Kupfer, da die Zahl der langen Stäbe für die Einschichtwicklung nur halb so groß ist wie die der Zweischichtwicklung.In the case of windings designed in this way, if those individual rods are classified according to Art the single-layer winding are connected to the hole and places the associated Connection bracket in the furthest away from the face of the effective iron Level, there is a substantial saving in copper, since the number of long Rods for single-layer winding is only half the size of that for two-layer winding.
Die Zeichnung zeigt in den Abb. 1 und 3 eine Wicklung mit drei Stäben je Nut nach der Erfindung. Es bedeutet dabei A den als Zweischichtwicklung geschalteten Teil der Wicklung mit den Stäben 1 und 1, welche in Abb. 3 mit dünnen Linien dargestellt ist, wobei jeweils die den Stäben 2 entsprechende Schicht gestrichelt wurde. Der als Einschichtwicklung verbundene Teil B der Wicklung mit den Stäben 3 liegt an der Bohrung und ist in Abb. 3 stark ausgezogen. Die Enden der Stäbe sowohl der Zweischicht- als auch, der Einschichtwicklung ragen über die Stirnseite bei α und b bzw. bei c und d mit verschiedenen Längen hinaus, so daß sie in den entsprechenden Ebenen der zugehörigen Bügel liegen.The drawing shows in Figs. 1 and 3 a winding with three bars per slot according to the invention. It means where A connected as a two-layer winding portion of the coil to the bars 1 and 1, which is shown in Fig. 3 with thin lines, wherein each of the bars 2 corresponding layer was broken lines. Part B of the winding with the bars 3, which is connected as a single-layer winding, lies at the bore and is strongly drawn out in Fig. 3. The ends of the bars of both the two-layer and the single-layer winding protrude beyond the end face at α and b or at c and d with different lengths so that they lie in the corresponding planes of the associated bracket.
*) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor:
Dr.-Ing. Robert Pohl in Berlin.Dr.-Ing. Robert Pohl in Berlin.
Claims (3)
ist als bei der Zweischichtwicklung und
zweite Stabende zur gleichen Ebene gehört, lassen sich nämlich die Bügel der Einschichtwicklung mit wesentlich flacher geformten Evolventen ausbilden, welche eine geringere radiale Ausladung aufweisen. Auch in diesem Zusammenhang · hat die Anordnung der Stabe für die Einschichtwicklung B an der Bohrung einen günstigen Einfluß, denn durch die geringere radiale Höhe ihrer Bügel ergibt sich ein freier Zugang der Kühlluft zu den dahinter· sich anschließenden Wickelköpfen der Zweischichtwicklung.The stirrups of the single-layer winding B are greatly shortened in their radial extension compared to those of the two-layer winding A. Since the distance between the rod ends belonging to the same bracket level is twice as great in the case of single-layer winding
is than with two-layer winding and
second rod end belongs to the same level, namely the stirrups of the single-layer winding can be designed with much flatter shaped involutes, which have a smaller radial overhang. In this context, too, the arrangement of the bars for the single-layer winding B at the bore has a beneficial effect, because the lower radial height of their brackets gives the cooling air free access to the winding heads of the two-layer winding that are connected behind it.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA74985D DE638211C (en) | 1935-01-08 | 1935-01-08 | Multi-bar winding for AC machines with an uneven number of bars per slot |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA74985D DE638211C (en) | 1935-01-08 | 1935-01-08 | Multi-bar winding for AC machines with an uneven number of bars per slot |
Publications (1)
Publication Number | Publication Date |
---|---|
DE638211C true DE638211C (en) | 1936-11-11 |
Family
ID=6946315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA74985D Expired DE638211C (en) | 1935-01-08 | 1935-01-08 | Multi-bar winding for AC machines with an uneven number of bars per slot |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE638211C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1005611B (en) * | 1954-05-13 | 1957-04-04 | Siemens Ag | AC winding for electrical machines |
DE1006506B (en) * | 1954-05-13 | 1957-04-18 | Siemens Ag | AC winding for electrical machines |
DE1042089B (en) * | 1955-04-25 | 1958-10-30 | Licentia Gmbh | Inductor winding for turbo generators, especially with direct conductor cooling |
FR3105891A1 (en) * | 2019-12-30 | 2021-07-02 | Valeo Equipements Electriques Moteur | Electric winding for active part of rotating electric machine |
WO2021250162A1 (en) * | 2020-06-10 | 2021-12-16 | Jheeco E-Drive Ag | Stator for an electric machine, and electric machine |
-
1935
- 1935-01-08 DE DEA74985D patent/DE638211C/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1005611B (en) * | 1954-05-13 | 1957-04-04 | Siemens Ag | AC winding for electrical machines |
DE1006506B (en) * | 1954-05-13 | 1957-04-18 | Siemens Ag | AC winding for electrical machines |
DE1042089B (en) * | 1955-04-25 | 1958-10-30 | Licentia Gmbh | Inductor winding for turbo generators, especially with direct conductor cooling |
FR3105891A1 (en) * | 2019-12-30 | 2021-07-02 | Valeo Equipements Electriques Moteur | Electric winding for active part of rotating electric machine |
WO2021136648A1 (en) * | 2019-12-30 | 2021-07-08 | Valeo Equipements Electriques Moteur | Electrical winding for an active part of a rotating electric machine |
WO2021250162A1 (en) * | 2020-06-10 | 2021-12-16 | Jheeco E-Drive Ag | Stator for an electric machine, and electric machine |
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