DE928056C - Closed-type electrical machine with cooling device - Google Patents

Closed-type electrical machine with cooling device

Info

Publication number
DE928056C
DE928056C DES17554A DES0017554A DE928056C DE 928056 C DE928056 C DE 928056C DE S17554 A DES17554 A DE S17554A DE S0017554 A DES0017554 A DE S0017554A DE 928056 C DE928056 C DE 928056C
Authority
DE
Germany
Prior art keywords
electrical machine
closed
type electrical
double
directly adjacent
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
Application number
DES17554A
Other languages
German (de)
Inventor
Karl Dr-Ing Haas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES17554A priority Critical patent/DE928056C/en
Application granted granted Critical
Publication of DE928056C publication Critical patent/DE928056C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Description

Die Erfindung bezieht sich auf eine elektrische Maschine geschlossener Bauart mit durch ein doppelwandiges, an dem Ständerblechpaket unmittelbar anliegendes Ständergehäuse und einen an dem Läuferblechpaket unmittelbar anliegenden hohl ausgeführten Wellenteil gebildeter, an eine Flüssigkeitszu- und -abführung angeschlossener Rückkühlvorrichtung für die Innenluft. Bei dieser Kühl= einrichtung werden die Verluste nicht nur durch Wärmeleitungen über den Kühlluftstrom, sondern zusätzlich durch Wärmeübergang an die Rückkühlvorrichtung unmittelbar abgegeben.The invention relates to a closed electrical machine Design with a double-walled, directly adjacent to the stator core Stator housing and a hollow executed directly adjacent to the laminated rotor core Shaft part formed recooling device connected to a liquid inlet and outlet for indoor air. With this cooling device, the losses are not only reduced Heat conduction via the cooling air flow, but also through heat transfer the recooling device released immediately.

Die Erfindung hat die Aufgabe, die Kühlwirkung derartiger Maschinenweiter zu erhöhen. Erfindungsgemäß sind sowohl innerhalb des durch das doppelwandige Ständergehäuse gebildeten Hohlkörpers als auch innerhalb des hohlen Wellenteils die beiden Wickelkopfräume verbindende Kanäle, insbesondere Röhren für den kreisförmig geführten Innenkühlluftstrom, angeordnet.The invention aims to further improve the cooling effect of such machines to increase. According to the invention are both within the double-walled stator housing formed hollow body as well as the two winding head spaces within the hollow shaft part connecting channels, in particular tubes for the circular flow of internal cooling air, arranged.

Die Erfindung soll an Hand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert werden, die einen Längsschnitt durch eine elektrische Maschine zeigt.The invention is based on the embodiment shown in the drawing will be explained in more detail, which shows a longitudinal section through an electrical machine.

Das Ständergehäuse I der Maschine ist doppelwandig ausgeführt und der so gebildete, an eine Rohrleitung angeschlossene Hohlraum 2 mit Kühlflüssigkeit, beispielsweise Wasser, gefüllt. Am Sitz des Ständerblechpakets 3 ist der Hohlraum bis zum Außendurchmesser des Blechpakets erweitert. Durch diesen erweiterten Hohlraum 4 sind Kühlrohre 5 geführt, die unmittelbar an die Wickelkopfräume 6 und 7 angeschlossen sind. 8 und 9 sind Lagerschilde für Lagerung der Maschinenwelle. Diese besteht aus den beiden Teilwellen I0 und II mit je einem nach innen gerichteten Flansch 12, bzw. 13 und der büchsenförmigen Nabe 14 für das Läuferblechpaket 15, die mit den Flanschen verschweißt ist. An den Flanschen sind den von der Nabe 14 gebildeten Hohlraum 16 durchsetzende Kühlrohre 17 befestigt, die ebenso wie die Kühlrohre 5 unmittelbar mit den Wickelkopfräumen 6 und 7 in Verbindung stehen. 18 ist ein Lüfter für den Innenkühlluftstrom. Die Teilwelle I0 hat eine Bohrung I9, in der ein bis nahe an den Flansch 13 der anderen Teilwelle reichendes Rohr 2o für die Zuführung der Kühlflüssigkeit angeordnet ist. Das Rohr 2o kann mit der umlaufenden Welle fest verbunden, es kann aber auch feststehend angebracht. sein. Im letzteren Fäll ist nur eine einfache Dichtung der umlaufenden Welle erforderlich.The stator housing I of the machine is double-walled and the cavity 2 thus formed and connected to a pipeline with cooling liquid, for example water, filled. At the seat of the stator core 3 is the cavity extended to the outer diameter of the laminated core. Through this enlarged cavity 4 cooling tubes 5 are guided, which are directly connected to the winding head spaces 6 and 7 are. 8 and 9 are end shields for mounting the machine shaft. This consists of the two partial shafts I0 and II each with an inwardly directed flange 12, or 13 and the sleeve-shaped hub 14 for the laminated rotor core 15, which with the Flanges is welded. On the flanges are those formed by the hub 14 Cooling tubes 17 penetrating through the cavity 16 are fastened which, like the cooling tubes 5 are directly connected to the winding head spaces 6 and 7. 18 is a fan for the internal cooling air flow. The partial shaft I0 has a hole I9 in which one to close to the flange 13 of the other partial shaft reaching tube 2o for the supply the cooling liquid is arranged. The pipe 2o can be fixed to the rotating shaft connected, but it can also be fixed. be. In the latter case it is only a simple seal of the rotating shaft is required.

Während des Betriebes wird der Innenkühlluftstrom von dem Wickelkopfraum 7 durch die Kühlrohre 5 zum Wickelkopfraum 6 und von da durch die Kühlrohre 17 wieder zum Wickelkopfraum 7 geführt.During operation, the internal cooling air flow is removed from the winding head space 7 through the cooling tubes 5 to the winding head space 6 and from there through the cooling tubes 17 again led to winding head space 7.

Die Erfindung bietet den Vorteil, daß der Innenluftstrom zweimal unmittelbar durch die Rückkühlkammern geführt und die wirksame Kühloberfläche erheblich vergrößert wird. Damit ist eine sehr wirksame Rückkühlung des Innenluftstromes gewährleistet.The invention offers the advantage that the internal air flow twice directly guided through the recooling chambers and the effective cooling surface is increased considerably will. This ensures a very effective recooling of the internal air flow.

Claims (2)

PATENTANSPRÜCHE: I. Elektrische Maschine geschlossener Bauart mit durch ein doppelwandiges, an dem Ständerblechpaket unmittelbar anliegendes Ständergehäuse und einen an dem Läuferblechpaket unmittelbar anliegenden hohl ausgeführten Wellenteil gebildeter, an eine Flüssigkeitszu-und -abführung angeschlossener Rückkühlvorrichtung für die Innenluft, dadurch gekennzeichnet, daß sowohl innerhalb des durch das doppelwandige Ständergehäuse gebildeten Hohlkörpers als auch innerhalb des hohlen Wellenteils die beiden Wickelkopfräume verbindende Kanäle, insbesondere Röhren für den kreisförmig geführten Innenkühlluftstrom angeordnet sind. PATENT CLAIMS: I. Closed-type electrical machine with by means of a double-walled stator housing directly adjacent to the stator core and a hollow shaft part directly adjacent to the laminated rotor core formed recooling device connected to a liquid inlet and outlet for indoor air, characterized in that both inside the by the double-walled Stator housing formed hollow body and within the hollow shaft part the two winding head spaces connecting channels, in particular tubes for the circular guided internal cooling air flow are arranged. 2. Maschine nach Anspruch i, dadurch gekennzeichnet, daß die Welle aus drei miteinander verbundenen, insbesondere verschweißten Teilen (io, 1i, 14) besteht, von denen der mittlere die Läufernabe (i4) bildet. Angezogene Druckschriften: Deutsche Patentschriften Nr. 614 536, 591736, 546 364e337 561, 375 471.2. Machine according to claim i, characterized in that the shaft consists of three interconnected, in particular welded parts (io, 1i, 14), of which the middle one forms the rotor hub (i4). Cited publications: German Patent Nos. 614 536, 591 736, 546 364e337 561, 375 471.
DES17554A 1950-07-15 1950-07-15 Closed-type electrical machine with cooling device Expired DE928056C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES17554A DE928056C (en) 1950-07-15 1950-07-15 Closed-type electrical machine with cooling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES17554A DE928056C (en) 1950-07-15 1950-07-15 Closed-type electrical machine with cooling device

Publications (1)

Publication Number Publication Date
DE928056C true DE928056C (en) 1955-05-23

Family

ID=7475432

Family Applications (1)

Application Number Title Priority Date Filing Date
DES17554A Expired DE928056C (en) 1950-07-15 1950-07-15 Closed-type electrical machine with cooling device

Country Status (1)

Country Link
DE (1) DE928056C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056255B (en) * 1957-04-17 1959-04-30 Schorch Werke Ag Electric machine with liquid cooling
DE1075434B (en) * 1960-02-11 Siemens-Schuckertwerke Aktiengesellschaft, Berlin Und Erlangen Pump unit, in particular with an electric drive motor for conveying hot goods

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE337561C (en) * 1917-12-29 1921-09-28 Michael Seidner Dr Ing Arrangement for cooling electrical machines
DE375471C (en) * 1923-05-14 Siemens Schuckertwerke G M B H Solid runner for electrical machines of great length
DE546364C (en) * 1929-03-17 1932-03-11 Kalman Von Kando Dr Cooling device for the runners of electrical machines, in which fluid-flowed cooling pipes are housed in recesses
DE591736C (en) * 1929-07-28 1934-01-26 Siemens Schuckertwerke Akt Ges Commutator motor with closed housing
DE614536C (en) * 1932-08-02 1935-06-12 Siemens Schuckertwerke Akt Ges Liquid cooling for the runners of electrical machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE375471C (en) * 1923-05-14 Siemens Schuckertwerke G M B H Solid runner for electrical machines of great length
DE337561C (en) * 1917-12-29 1921-09-28 Michael Seidner Dr Ing Arrangement for cooling electrical machines
DE546364C (en) * 1929-03-17 1932-03-11 Kalman Von Kando Dr Cooling device for the runners of electrical machines, in which fluid-flowed cooling pipes are housed in recesses
DE591736C (en) * 1929-07-28 1934-01-26 Siemens Schuckertwerke Akt Ges Commutator motor with closed housing
DE614536C (en) * 1932-08-02 1935-06-12 Siemens Schuckertwerke Akt Ges Liquid cooling for the runners of electrical machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075434B (en) * 1960-02-11 Siemens-Schuckertwerke Aktiengesellschaft, Berlin Und Erlangen Pump unit, in particular with an electric drive motor for conveying hot goods
DE1056255B (en) * 1957-04-17 1959-04-30 Schorch Werke Ag Electric machine with liquid cooling

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