CH103743A - Rotary field asynchronous motor with grooved short-circuit armature and armature ladders divided in height. - Google Patents
Rotary field asynchronous motor with grooved short-circuit armature and armature ladders divided in height.Info
- Publication number
- CH103743A CH103743A CH103743DA CH103743A CH 103743 A CH103743 A CH 103743A CH 103743D A CH103743D A CH 103743DA CH 103743 A CH103743 A CH 103743A
- Authority
- CH
- Switzerland
- Prior art keywords
- armature
- asynchronous motor
- rotary field
- height
- short
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Landscapes
- Induction Machinery (AREA)
Description
Drehfeld-Asynchronmotor rmit genutetem Kurzschlussanker und in der Höhe unterteilten Ankerleitern. Die Erfindung bezieht sich auf einen Drehfeld-Asynchronmotor mit genutetem Kurzschlussanker und in der Höhe unter teilten Ankerleitern, deren Widerstand bei grossen Schlüpfungen durch die Wirkung der Stromverdrängung vermehrt wird. Er findungsgemäss soll durch ein besonderes Mittel die Wirkung der Nutenstreuung auf die Stromverdrängung der Leiter vergrössert werden, nämlich durch in die Ankerleiter eingelagerte magnetische Schichten.
Die magnetischen Schichten können so wohl zwischen den einzelnen Teilleitern des unterteilten Ankerleiters liegen, als in die Teilleiter eingebettet sein.
Die Zeichnung betrifft zwei Ausführungs beispiele der Erfindung.
Fig. 1 zeigt einen Ankerleiter im Quer schnitt mit den Nutenumrissen, Fig. 2 einen Käfiganker im Längsschnitt; Fig. 3 ist ein Querschnitt nach der Linie x-x in Fig. 2. Der in Fig. 1 dargestellte Ankerleiter besteht aus sechs kupfernen Teilleitern k und fünf dazwischen gelagerten Eisenstäben e. Die sechs Teilleiter k sind hierbei von den Eisenstäben e isoliert und durch die Stirnverbindungen in Reihe geschaltet zu denken.
Bei dem Käfiganker nach Fig. 2 dagegen liegen die Eiseneinlagen in den Teilleitern. Hier liegen in jeder Nut zwei parallel ge schaltete Teilleiter a, b übereinander, die in der Mitte verschränkt sind, so dass der in der einen Hälfte seiner Länge unten liegende Teilleiter in der zweiten Hälfte oben liegt, und umgekehrt, und die Span nungen beider Teilleiter einander stets genau gleich sind. Jeder Teilleiter besteht aus zwei übereinander liegenden Kupferstäben k und einer eisernen Zwischenlage e (Fig. 3). An den Enden sind die Teilleiter unter sich und mit den Kurzschlussringen r leitend ver bunden. Die Eisenstäbe e können zur Strom- leitung mitbenutzt werden, was natürlich zweckmässig ist.
Statt die mit Eiseneinlagen versebenen Kupferstäbe gemäss Fig. 2 miteinander zu verschränken, kann man sie auch miteinander verseilen.
Trotz der vergrösserten Nutenstreuung ist die totale Streuung des Ankers nach Fig. 2 durchaus erträglich, indem die Stirn streuung eines Käfigankers wegen des Fort falles von weit ausladenden Stirnverbindun gen gering bleibt.
Rotary field asynchronous motor with grooved short-circuit armature and armature ladders divided in height. The invention relates to a rotating field asynchronous motor with a grooved short-circuit armature and armature conductors that are divided in height, the resistance of which is increased by the effect of the current displacement in the case of large slippage. According to the invention, the effect of the slot scattering on the current displacement of the conductor is to be increased by a special means, namely by magnetic layers embedded in the armature conductor.
The magnetic layers can lie between the individual subconductors of the subdivided armature conductor as well as be embedded in the subconductors.
The drawing relates to two execution examples of the invention.
Fig. 1 shows an anchor conductor in cross section with the groove outlines, Fig. 2 shows a cage anchor in longitudinal section; Fig. 3 is a cross section along the line x-x in Fig. 2. The armature conductor shown in Fig. 1 consists of six copper partial conductors k and five iron rods e between them. The six sub-conductors k are insulated from the iron bars e and connected in series through the end connections.
In the case of the cage anchor according to FIG. 2, on the other hand, the iron inserts are located in the sub-conductors. Here, two parallel sub-conductors a, b lie one above the other in each slot, which are interlaced in the middle, so that the sub-conductor lying at the bottom in one half of its length is on top in the second half, and vice versa, and the voltages of both sub-conductors are always exactly the same. Each sub-conductor consists of two copper bars k lying on top of one another and an iron intermediate layer e (Fig. 3). At the ends, the sub-conductors are conductively connected to each other and to the short-circuit rings r. The iron bars e can also be used to conduct electricity, which is of course useful.
Instead of interlacing the copper rods with iron inlays according to FIG. 2, they can also be stranded together.
Despite the increased distribution of the grooves, the total distribution of the anchor according to FIG. 2 is quite tolerable, in that the forehead scatter of a cage anchor remains low because of the case of sweeping frontal connections.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE103743X | 1916-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH103743A true CH103743A (en) | 1924-03-01 |
Family
ID=5649777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH103743D CH103743A (en) | 1916-03-30 | 1917-03-20 | Rotary field asynchronous motor with grooved short-circuit armature and armature ladders divided in height. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH103743A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1215805B (en) * | 1960-03-31 | 1966-05-05 | Siemens Ag | Bar-wise opposing connection of cage windings for electrical machines lying axially next to each other on two separate runner parts |
-
1917
- 1917-03-20 CH CH103743D patent/CH103743A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1215805B (en) * | 1960-03-31 | 1966-05-05 | Siemens Ag | Bar-wise opposing connection of cage windings for electrical machines lying axially next to each other on two separate runner parts |
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