DE972331C - Arrangement on the pole pieces of the exciter poles of commutator machines, especially direct current motors, with slots for the accommodation of a compensation winding - Google Patents
Arrangement on the pole pieces of the exciter poles of commutator machines, especially direct current motors, with slots for the accommodation of a compensation windingInfo
- Publication number
- DE972331C DE972331C DES24918A DES0024918A DE972331C DE 972331 C DE972331 C DE 972331C DE S24918 A DES24918 A DE S24918A DE S0024918 A DES0024918 A DE S0024918A DE 972331 C DE972331 C DE 972331C
- Authority
- DE
- Germany
- Prior art keywords
- grooves
- compensation winding
- arrangement
- direct current
- slots
- 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
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
- H02K23/22—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having compensating or damping windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Description
An den Polschuhen der Erregerpole von Gleich-oder Wechselstrom-Kommutatormaschinen werden Nuten für die Aufnahme einer Kompensationswicklung vorgesehen. Man verteilt diese Nuten über die ganze Länge des Polschuhes in der Umfangsrichtung gleichmäßig, um eine möglichst gute Wirkung der Kompensationswicklung zu erzielen. Andererseits wird aber durch den von den Nuten beanspruchten Raum der Querschnitt für den Übergang des Erregerflusses vom Pol auf den Anker verringert, so daß sich Sättigungserscheinungen ausbilden können. Insbesondere kann der Erregerfluß vom Poleisen zu den beiden Flanken des Polschuhes nur schlecht übertreten, da an dieser Stelle die tiefen Nuten der Kompensationswicklung den Übergangsquerschnitt sehr vermindern.On the pole pieces of the exciter poles of DC or AC commutator machines grooves are provided to accommodate a compensation winding. One distributes these grooves evenly over the entire length of the pole piece in the circumferential direction, in order to achieve the best possible effect of the compensation winding. on the other hand however, the cross-section for the transition is due to the space occupied by the grooves of the excitation flow from the pole to the armature is reduced, so that there are saturation phenomena can train. In particular, the excitation flow from the pole iron to the two flanks of the pole shoe cross only badly, because at this point the deep grooves of the Compensation winding reduce the transition cross-section very much.
Die Erfindung betrifft eine Anordnung der Nuten der Kompensationswicklung am Polschuh, durch die der geschilderte Nachteil vermieden bzw. wesentlich vermindert wird. Erfindungsgemäß weisen die über die Umfangslänge des Polschuhes verteilten Nuten der Kompensationswicklung an den beiden Flanken des Polschuhes eine geringere Nuttiefe auf als in der Mitte des Polschuhes. Das Verringern der Nuttiefe zum Vermeiden von Änderungen der Jochinduktion an Stellen verringerter Blechpakethöhe ist an sich bei aus Blechen mit polygonalem Umfang aufgebauten Ständerblechpaketen mit verteilter Wicklung bekannt. Wie aus dem dargestellten Ausführungsbeispiel ersichtlich, finden nunmehr die an den Seitenflanken vom Poleisen 3 zum Polschuh 4 übertretenden magnetischen Kraftlinien einen genügend großen Querschnitt vor, da an diesen Stellen die verkürzten Nuten I der Kompensationswicklung nicht mehr so stark in den Weg der Kraftlinien hineinragen. In der Polschuhmitte besitzen die Nuten 2 eine erheblich größere Nuttiefe, da sie hier mit dieser Nuttiefe keine wesentliche Verengung des Kraftlinienweges herbeiführen könneu. Will man in den kürzeren Nuten dieselbe Leiteranzahl und denselben Leiterquerschnitt unterbringen wie in den tiefen Nuten, so müssen die Nuten I breiter sein als die Nuten 2. Sofern man alle Nuten mit der gleichen Nutbreite versieht, müßte man bei gleicher Leiterzahl für die Nuten I und 2 den Querschnitt der Leiter in den Nuten I verringern, also eine höhere Stromdichte zulassen. Man kann aber auch in den Nuten I weniger Leiter der Kompensationswicklung anordnen, ohne daß dadurch die Wirkung der Kompensationswicklung erheblich gestört wird. Beispielsweise sind in der Zeichnung in den Nuten I fünf Leiter untergebracht, in den Nuten 2 hingegen sieben, die alle gleichen Querschnitt bzw. gleiche Stromdichte aufweisen.The invention relates to an arrangement of the grooves of the compensation winding on the pole shoe, which avoids or significantly reduces the disadvantage described will. According to the invention, the distributed over the circumferential length of the pole piece Grooves of the compensation winding on the two flanks of the pole piece are less Groove depth than in the middle of the pole piece. Reducing the groove depth to avoid of changes in the yoke induction at points of reduced laminated core height is per se in the case of stator core stacks made of sheet metal with a polygonal circumference with distributed Known winding. As can be seen from the illustrated embodiment, find now the magnetic crossing on the side flanks of the pole iron 3 to the pole shoe 4 Lines of force have a sufficiently large cross-section, since the shortened ones at these points Grooves I of the compensation winding are no longer so strongly in the path of the lines of force protrude. In the center of the pole shoe, the grooves 2 have a considerably greater groove depth, since there is no significant narrowing of the force line path with this groove depth bring about new. If you want the same number and the same number of conductors in the shorter slots Place the conductor cross-section as in the deep grooves, so the grooves I must be wider than the grooves 2. Provided that all grooves are provided with the same groove width, one would have to have the cross-section of the conductor for the same number of conductors for the grooves I and 2 reduce in the grooves I, so allow a higher current density. But you can also arrange fewer conductors of the compensation winding in the slots I without as a result, the effect of the compensation winding is significantly disrupted. For example five conductors are accommodated in the grooves I in the drawing, but in the grooves 2 seven, all of which have the same cross-section or the same current density.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES24918A DE972331C (en) | 1951-09-23 | 1951-09-23 | Arrangement on the pole pieces of the exciter poles of commutator machines, especially direct current motors, with slots for the accommodation of a compensation winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES24918A DE972331C (en) | 1951-09-23 | 1951-09-23 | Arrangement on the pole pieces of the exciter poles of commutator machines, especially direct current motors, with slots for the accommodation of a compensation winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE972331C true DE972331C (en) | 1959-07-02 |
Family
ID=7478094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES24918A Expired DE972331C (en) | 1951-09-23 | 1951-09-23 | Arrangement on the pole pieces of the exciter poles of commutator machines, especially direct current motors, with slots for the accommodation of a compensation winding |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE972331C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE542270C (en) * | 1932-01-22 | Sachsenwerk Licht & Kraft Ag | Compensation winding for DC machines located in open slots | |
| GB512860A (en) * | 1937-03-22 | 1939-09-27 | Siemens Ag | Improvements in or relating to electric motors |
-
1951
- 1951-09-23 DE DES24918A patent/DE972331C/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE542270C (en) * | 1932-01-22 | Sachsenwerk Licht & Kraft Ag | Compensation winding for DC machines located in open slots | |
| GB512860A (en) * | 1937-03-22 | 1939-09-27 | Siemens Ag | Improvements in or relating to electric motors |
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