DE51083C - Armature for AC motors - Google Patents
Armature for AC motorsInfo
- Publication number
- DE51083C DE51083C DENDAT51083D DE51083DA DE51083C DE 51083 C DE51083 C DE 51083C DE NDAT51083 D DENDAT51083 D DE NDAT51083D DE 51083D A DE51083D A DE 51083DA DE 51083 C DE51083 C DE 51083C
- Authority
- DE
- Germany
- Prior art keywords
- copper
- iron
- armature
- currents
- shape
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 210000003462 vein Anatomy 0.000 claims description 2
- 240000006829 Ficus sundaica Species 0.000 claims 1
- 230000001427 coherent effect Effects 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 238000007747 plating Methods 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002505 iron Chemical class 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTPATENT OFFICE
Die vorliegende Erfindung ist eine Verbesserung der zunächst von Professor Ferraris in Turin vorgeschlagenen Anordnung zur Erzielung kreisender Bewegung mittelst Wechselströme. Nach Ferraris (s. u. A. Industries, 1888, vom 18. Mai, auch Dir.gler's Journal) schaltet man zwei oder mehrere unter gewissem Winkel stehende magnetisirende Spulengruppen derart, dafs sie einerseits von Wechselströmen verschiedener Phase, wie sie z. B. aus einer Wechselstrommaschine mit versetzten Ankerspulen herrühren, durchflösse- werden, und andererseits so, dafs das wirksame magnetische Feld in bestimmter Drehrieh:ung sich fortbewegt; bringt man in diese? kreisende magnetische Feld einen leitenden Körper, z. B. einen Kupfercylinder, so gerain dieser infolge der Wechselwirkung des magnetischen Feldes ,und der in dem Leiter induciren Foucaultschen Ströme in Drehung. Ef kann aber ein nach dieser Art gebauter Elektromotor keinen hohen Wirkungsgrad haben, ob-vohl den Fo ucabIt-Strömen eine gut leitende Bahn vorliegt, weil die Stärke des magnetischen Feldes nur ',gering sein wird; bei Verwendung eines Eisenkörpers dagegen ist zwar Jas magnetische Feld'stark; indessen tritt hier der Uebelstand auf, dafs die elektrischen Strcme vom Eisen viel schlechter geleitet werden ils vom Kupfer und daher den Fo ucault' sehen Strömen ein zu grofser Widerstand geboten wird.The present invention is an improvement on the arrangement initially proposed by Professor Ferraris in Turin for achieving circular motion by means of alternating currents. According to Ferraris (see A. Industries, 1888, of May 18, also Dir.gler's Journal), two or more magnetizing coil groups positioned at a certain angle are switched in such a way that they are on the one hand affected by alternating currents of different phases, as they are e.g. B. originate from an alternating current machine with offset armature coils, are flowed through, and on the other hand so that the effective magnetic field moves in a certain rotational direction; do you bring into this? orbiting magnetic field a conductive body, e.g. B. a copper cylinder, so this is the result of the interaction of the magnetic field and the rotating Foucault currents induced in the conductor. However, an electric motor built according to this type cannot have a high degree of efficiency, even though the fo ucabit currents have a well-conducting path, because the strength of the magnetic field will only be "low"; when using an iron body, however, Jas's magnetic field is indeed strong; but here the problem arises that the electric currents are conducted much more poorly by the iron than by the copper, and that the fo ucault currents are therefore offered too great a resistance.
Im Folgenden soll eine Anordnung beschrieben werden, welche die erwähnten Uebelstände beseitigen soll. Selbstredend kann man die Wirkung der magnetisirenden Spulen verstärken, wenn man sie mit Eisenkernen versieht; die Hauptsache ist jedoch der Körper, in welchem : die Foucault-Ströme inducirt werden, und der hier als Anker bezeichnet werden soll. Der Anker soll im wesentlichen aus Eisen hergestellt werden, jedoch soll seine Masse von Kupferadern durchzogen werden, welche sämmt- : lieh mit einander, und zwar an beiden Enden i mittelst Kupferplatten oder Ringe oder der- : gleichen in Verbindung gebracht werden. Die : Fig. ι und 2 zeigen einen solchen Anker in i Form eines auf der Welle befestigten Eiseni cylinders α: dieser Cylinder ist an vielen Stellen j parallel der Achse durchbohrt, und in die so ! gebildeten Durchbohrungen sind Kupferstangen c eingelegt. An beiden Endflächen des Cylinders sind Kupferscheiben b angebracht, : welche sämmtliche Enden der Stangen c elek- ! frisch gut leitend verbinden. Bringt man solch i einen Anker in das magnetische Feld, so wird durch die Eisenmasse die Feldstärke ver-I gröfsert; gleichzeitig aber können in den ι Kupferadern kräftige Foucault-Ströme kreisen, j welche die magnetische Trägheit des Ankers j vergröfsern und somit seine Mitnahme durch ! das Feld begünstigen.In the following, an arrangement is to be described which is intended to remedy the above-mentioned deficiencies. It goes without saying that the action of the magnetizing coils can be intensified by providing them with iron cores; the main thing, however, is the body in which: the Foucault currents are induced, and which is here to be called the anchor. The anchor is to be made of iron substantially, but its mass is to be traversed by copper wires, which sämmt-: lent to each other, and means, although at both ends i copper plates or rings or DER: same are brought into connection. The: Fig. 1 and 2 show such an anchor in i the form of an iron cylinder α attached to the shaft: this cylinder is pierced at many points j parallel to the axis, and in the so! formed through holes are inserted copper rods c. Copper washers b are attached to both end faces of the cylinder: which all ends of the rods c are electrical! connect fresh with good conductivity. If one brings such an anchor into the magnetic field, the field strength is increased by the iron mass; At the same time, however, powerful Foucault currents can circulate in the ι copper veins, j which increase the magnetic inertia of the armature j and thus increase its entrainment! favor the field.
; Diese Anordnung, obwohl die günstigste, läfst sich jedoch durch andere verwandte mit '. mehr oder weniger Erfolg ersetzen. So z. B. i brauchen die Kupferstäbe nicht ganz und gar in die Eisenmasse eingelegt zu werden, sondern können in Nuthen, welche längs des Cylindermantels verlaufen, eingebettet werden; This arrangement, although the most favorable, can, however, be replaced by other related ones '. replace success more or less. So z. B. i do not need the copper rods to be completely inserted into the iron mass, but can be embedded in grooves that run along the cylinder jacket
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE51083C true DE51083C (en) |
Family
ID=325879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT51083D Expired - Lifetime DE51083C (en) | Armature for AC motors |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE51083C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE975622C (en) * | 1949-09-28 | 1962-03-01 | Erich Kieback Dr Ing | Reversible single-phase asynchronous capacitor motor |
DE3502697A1 (en) * | 1984-11-29 | 1986-06-05 | BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau | Asynchronous rotor |
US7564158B2 (en) | 2003-09-11 | 2009-07-21 | Siemens Aktiengesellschaft | Three-phase synchronous machine having a permanent magnet rotor with an induction cage |
WO2011002334A1 (en) | 2009-06-30 | 2011-01-06 | Закрытое Акционерное Общество "Технология Смп" | Method for increasing the operating efficiency of asynchronous short-circuited electric machines, and an asynchronous short-circuited electric machine (variants) |
-
0
- DE DENDAT51083D patent/DE51083C/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE975622C (en) * | 1949-09-28 | 1962-03-01 | Erich Kieback Dr Ing | Reversible single-phase asynchronous capacitor motor |
DE3502697A1 (en) * | 1984-11-29 | 1986-06-05 | BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau | Asynchronous rotor |
US7564158B2 (en) | 2003-09-11 | 2009-07-21 | Siemens Aktiengesellschaft | Three-phase synchronous machine having a permanent magnet rotor with an induction cage |
DE10394335B4 (en) * | 2003-09-11 | 2014-07-31 | Siemens Aktiengesellschaft | Three-phase synchronous machine with permanent magnet rotor with induction cage |
WO2011002334A1 (en) | 2009-06-30 | 2011-01-06 | Закрытое Акционерное Общество "Технология Смп" | Method for increasing the operating efficiency of asynchronous short-circuited electric machines, and an asynchronous short-circuited electric machine (variants) |
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