DE2951858A1 - Cooling system for rotating machine - has external cooling fins and internal cooling arrangement with return tubes between fins - Google Patents

Cooling system for rotating machine - has external cooling fins and internal cooling arrangement with return tubes between fins

Info

Publication number
DE2951858A1
DE2951858A1 DE19792951858 DE2951858A DE2951858A1 DE 2951858 A1 DE2951858 A1 DE 2951858A1 DE 19792951858 DE19792951858 DE 19792951858 DE 2951858 A DE2951858 A DE 2951858A DE 2951858 A1 DE2951858 A1 DE 2951858A1
Authority
DE
Germany
Prior art keywords
cooling
fins
housing
tubes
cooling tubes
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.)
Withdrawn
Application number
DE19792951858
Other languages
German (de)
Inventor
Ing.(grad.) Franz 8500 Nürnberg Böhm
Siegfried 8540 Schawabach Hilneder
Hermann Dipl.-Ing. 8540 Rednitzhembach Niebler
Ing.(grad.) Horst 8500 Nürnberg Weber
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 DE19792951858 priority Critical patent/DE2951858A1/en
Priority to JP17705180A priority patent/JPS5694944A/en
Publication of DE2951858A1 publication Critical patent/DE2951858A1/en
Withdrawn legal-status Critical Current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
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing

Abstract

The cooling system has external radial cooling fins (3) running axially-parallel along the outside of the machine casing (2). Cooling tubes (7) are located between the cooling fins on the outside of the casing. The tubes seal with holes (6) in the inward-directed circular flanges (4) of the bearing plates (5). The flanges are removably fixed to the casing. The seals between the ends of the cooling tubes and the stepped edges of the holes in the flanges are accomplished using O-rings. The cooling tubes are spaced away from the periphery of the casing and from the cooling fins. The cooling tubes belong to the internal cooling system of the machine and act as return paths.

Description

Oberflächenbelüftete elektrische Maschine mit außenver-Surface-ventilated electrical machine with externally

ripptem Gehäuse und Rückkühler Die Erfindung betrifft eine oberflächenbelüftete elektrische Maschine nach dem Oberbegriff des Patentanspruchs 1.ripped housing and recooler The invention relates to a surface-ventilated electrical machine according to the preamble of claim 1.

Eine solche Maschine ist aus der DE-PS 598 402 bekannt.Such a machine is known from DE-PS 598 402.

Die Längskanäle am Umfang des Gehäuses sind aus U-förmig gebogenen und in die Mantelfläche sowie endseitig nach außen vorragende Flansche eingebetteten Blechstreifen gebildet. Die Längskanäle werden von der Innenluft durchströmt und ihre die Außenrippen bildenden Oberflächen von der über sie durch einen auf der Welle sitzenden Außenlüfter mit Außenluft überströmt. Die Innenluft wird von einem im geschlossenen Gehäuse angeordneten wellenangetriebenen Innenlüfter gefördert.The longitudinal channels on the circumference of the housing are made of bent U-shape and embedded in the outer surface and at the end of the outwardly protruding flanges Sheet metal strips formed. The internal air flows through the longitudinal channels and their outer rib-forming surfaces from the one above them through one on the Shaft seated external fan flooded with outside air. The indoor air is from a Shaft-driven internal fan arranged in the closed housing.

Die Form und Größe der U-förmigen Blechstreifen bestimmt sowohl den Querschnitt für die Innenluft als auch die Oberfläche der Außenrippen, so daß nur ein enger Spielraum für die Gestaltung und Anpassung bei der Konstruktion gegeben ist und außerdem durch die Einbettung der Blechstreifen ein hoher Aufwand bei der Fertigung hingenommen werden muß.The shape and size of the U-shaped sheet metal strips determine both the Cross-section for the inner air as well as the surface of the outer ribs, so that only a narrow margin for design and customization in construction given is and also due to the embedding of the sheet metal strips a lot of effort in the Manufacturing must be accepted.

Der Erfindung liegt die Aufgabe zugrunde, bei der Bemessung, Konstruktion und Herstellung eine Vereinfachung und Erleichterung zu erreichen und tin außenverripptes Gehäuse gleichermaßen für Maschinen mit und ohne gesonderte Rückkühler für die Innenluft verwenden tu können, um die Lagerhaltung zu vereinfachen.The invention is based on the task of dimensioning, construction and manufacture to achieve a simplification and relief and tin externally ribbed Housing equally for machines with and without separate dry coolers for the indoor air You can use tu can to simplify inventory control.

Die Lösung der Aufgabe gelingt durch die Merkmale nach dem Kennzeichen des Patentanspruchs 1.The solution to the problem is achieved through the characteristics according to the label of claim 1.

Eine einfache Halterung und Abdichtung der Kühlrohre gelingt durch die Maßnahmen nach Patentanspruch 2, Ein Ausführungsbeispiel der Erfindung ist anhand eines teilweisen Längs- und Querschnittes in den Fig. 1 und 2 dargestellt und näher erläutert Das das bewickelte Ständerblechpaket t eng umgebende zylindrische Gehäuse 2 weist axiale Außenrippen 3 auf, die kurz vor den Stirnseiten des Gehäuses enden, An den Stirnseiten liegen dichtend nach innen erstreckte Ringflansche 4 von haubenartigen Lagerschilden 5 an, die oeffnungen 6 für die Aufnahme der Enden von Kühlrohren 7 aufweisen.A simple mounting and sealing of the cooling tubes is achieved through the measures according to claim 2, An embodiment of the invention is based on a partial longitudinal and cross-section in Figs. 1 and 2 shown and in more detail explained The cylindrical housing which tightly surrounds the wound stator core t 2 has axial outer ribs 3, which end just before the end faces of the housing, On the end faces are sealingly inwardly extending annular flanges 4 of hood-like End shields 5 on, the openings 6 for receiving the ends of cooling tubes 7 exhibit.

Die zwischen den Außenrippen 3 und der Oberfläche des Gehäuses 2 mit Abstand in den Offnungen 6 gehaltenen Kühlrohre 7 werden von der Innenluft durchströmt und von der vom Außenlüfter 8 geförderten Außenluft überströmt Die Oeffnungen 6 sind nach innen zu abgestuft und mit einem nicht dargestellten O-Ring belegt, gegen den das eingeschobene Ende des Kühlrohres beins Anbau der Lagerschilde am Gehäuse angedrückt wird Somit ist eine einfache Montage, eine sichere Abdichtung des Innenkülkreises nach außen und eine Freizügigkeit in der Bemessung der Außenrippen sowie der Kühlrohrlängen und Querschnitte für verschiedene Maschinenlängen und -größen erreicht.The between the outer ribs 3 and the surface of the housing 2 with The cooling tubes 7 held at a distance in the openings 6 are traversed by the internal air and the outside air conveyed by the external fan 8 flows over the openings 6 are stepped inwards and covered with an O-ring, not shown, against the pushed-in end of the cooling tube beins mounting the end shields on the housing is pressed Thus, a simple assembly, a secure seal of the inner circle to the outside and freedom of movement in the dimensioning of the outer ribs as well as the cooling tube lengths and cross-sections for different machine lengths and sizes achieved.

3 PatentansDrüche 2 Figuren3 claims 2 figures

Claims (2)

Patentansnrüche 1. Oberflächenbelüftete elektrische Maschine mit außenrripptem Gehäuse, an dessen Außenumfang gerade Längskanäle als Rückkühler für den durch haubenartige Lagerschilde geschlossenen Innenkühlluftkreis angeordnet sind, d a d u r c h g e k e n n z e i c h n e t , daß zwischen den Außenrippen (3) des Gehäuses (2) Kühlrohre (7) als Längskanäle angeordnet und endseitig in Öffnungen (6) in stirnseitigen, radial nach innen erstreckten Ringflanschen (4) der Lagerschilde (6) abgedichtet eingeschoben sind, welche Ringflansche mit dem Gehäuse lösbar erbunden sind.Claims 1. Surface-ventilated electrical machine with outer ribbed Housing, on the outer circumference of which there are straight longitudinal channels as a dry cooler for the hood-like Bearing shields are arranged in a closed internal cooling air circuit, d a d u r c h g e It is not possible to say that between the outer ribs (3) of the housing (2) cooling tubes (7) arranged as longitudinal channels and at the end in openings (6) in frontal, radially inwardly extending annular flanges (4) of the end shields (6) sealed are inserted, which ring flanges are releasably tied to the housing. 2. Maschine nach Anspruch 1, d a d u r c h g e k e n n -z e i c h n e t , daß die endseitige Abdichtung der Kühlrohre (7) durch in die mit Ringschultern versehenen Öffnungen (6) eingelegte O-Ringe erfolgt.2. Machine according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the end seal of the cooling tubes (7) through into the shoulders with ring provided openings (6) inserted O-rings takes place. . Dlaschine nach Anspruch 1 oder 2, d a d u r c h g e -k e n n r e i c h n e t , daß die Kühlrohre (7) vom Gehäuseumfang und von den sie radial überragenden Außenrippen (3) beabstandet sind.. Dlaschine according to claim 1 or 2, d a d u r c h g e -k e n n r e i c h n e t that the cooling tubes (7) from the housing circumference and from the radially protruding beyond them Outer ribs (3) are spaced.
DE19792951858 1979-12-21 1979-12-21 Cooling system for rotating machine - has external cooling fins and internal cooling arrangement with return tubes between fins Withdrawn DE2951858A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19792951858 DE2951858A1 (en) 1979-12-21 1979-12-21 Cooling system for rotating machine - has external cooling fins and internal cooling arrangement with return tubes between fins
JP17705180A JPS5694944A (en) 1979-12-21 1980-12-15 Sheathed vent rotary electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792951858 DE2951858A1 (en) 1979-12-21 1979-12-21 Cooling system for rotating machine - has external cooling fins and internal cooling arrangement with return tubes between fins

Publications (1)

Publication Number Publication Date
DE2951858A1 true DE2951858A1 (en) 1981-07-02

Family

ID=6089319

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792951858 Withdrawn DE2951858A1 (en) 1979-12-21 1979-12-21 Cooling system for rotating machine - has external cooling fins and internal cooling arrangement with return tubes between fins

Country Status (2)

Country Link
JP (1) JPS5694944A (en)
DE (1) DE2951858A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742257A (en) * 1987-01-29 1988-05-03 General Motors Corporation Totally enclosed fan cooled induction motor with improved cooling
AT508879B1 (en) * 2008-02-04 2014-07-15 Traktionssysteme Austria Gmbh AIR-COOLED ELECTRIC MACHINE
EP2793360A1 (en) * 2013-04-17 2014-10-22 Siemens Aktiengesellschaft Rotating electric machine
EP2793371A1 (en) * 2013-04-17 2014-10-22 Siemens Aktiengesellschaft Rotating electric machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742257A (en) * 1987-01-29 1988-05-03 General Motors Corporation Totally enclosed fan cooled induction motor with improved cooling
AT508879B1 (en) * 2008-02-04 2014-07-15 Traktionssysteme Austria Gmbh AIR-COOLED ELECTRIC MACHINE
EP2793360A1 (en) * 2013-04-17 2014-10-22 Siemens Aktiengesellschaft Rotating electric machine
EP2793371A1 (en) * 2013-04-17 2014-10-22 Siemens Aktiengesellschaft Rotating electric machine
WO2014170056A1 (en) * 2013-04-17 2014-10-23 Siemens Aktiengesellschaft Rotating electric machine

Also Published As

Publication number Publication date
JPS5694944A (en) 1981-07-31

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