DE852717C - Closed-type electrical machine - Google Patents

Closed-type electrical machine

Info

Publication number
DE852717C
DE852717C DES21132A DES0021132A DE852717C DE 852717 C DE852717 C DE 852717C DE S21132 A DES21132 A DE S21132A DE S0021132 A DES0021132 A DE S0021132A DE 852717 C DE852717 C DE 852717C
Authority
DE
Germany
Prior art keywords
electrical machine
closed
winding head
housing
conical
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
DES21132A
Other languages
German (de)
Inventor
Siegfried Voll
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 DES21132A priority Critical patent/DE852717C/en
Application granted granted Critical
Publication of DE852717C publication Critical patent/DE852717C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets

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, insbesondere mit doppelwandigem, mit einem flüssigen Kühlmittel gefüllten Ständergehäuse. An den über den Wickelkopfräumen sich erstreckenden gekühlten Wänden des Ständergehäuses schlägt sich bei Erwärmung der Maschine der Wasserdampf der Innenluft als Kondenswasser nieder, das von den oberen Wandteilen abtropft und dadurch die Wicklungsköpfe benetzt und deren Isolation gefährdet.The invention relates to a closed electrical machine Design, in particular with a double-walled one filled with a liquid coolant Stator housing. On the cooled walls extending over the winding head spaces of the stator housing, when the machine heats up, the water vapor strikes Indoor air as condensation water, which drips from the upper wall parts and thereby wets the winding heads and endangers their insulation.

Durch die Erfindung werden diese Nachteile beseitigt. Erfindungsgemäß sind die die Wickelkopfräume überdeckenden Teile des Gehäusemantels kegelförmig ausgebildet und an den Stellen des kleinsten Durchmessers Leitrinnen angeordnet.The invention overcomes these disadvantages. According to the invention the parts of the housing jacket that cover the winding head spaces are conical formed and arranged at the points of the smallest diameter guide channels.

Die Erfindung soll ari Hand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert werden, die eine elektrische Maschine mit einem doppelwandigen Gehäuse im Schnitt zeigt.The invention is intended to be based on the exemplary embodiment shown in the drawing will be explained in more detail, which is an electrical machine with a double-walled housing shows in section.

Der an eine Rohrleitung angeschlossene Hohlraum i des doppelwandigen Gehäuses 2 einer elektrischen Maschine ist mit einer Kühlflüssigkeit, beispielsweise Wasser gefüllt. Das Ständerblechpaket 3 liegt unmittelbar an der Gehäuseinnenwand 4 an. Auf der Welle 5 sitzen die Lüfter 6, die die Innenluft von den Ständerwicklungsköpfen 7 zu den die Wickelkopfräume umschließenden Innenwandteilen 8 des Ständergehäuses zwecks Abkühlung drückt. Diese Teile der Innenwand sind kegelförmig mit nach dem Blechpaket zu sich verjüngendem Durchmesser ausgeführt. An den Druckringeng des Ständerhlechpakets sind etwa parallel zu den kegelförmigen Innenwänden gebogene Blechstreifen io befestigt, die mit den Druckringen Rinnen i i bilden. Wenn sich während des Betriebes bei Erwärmung der Maschine der Wasserdampf der Innenluft als Kondenswasser an der den Wickelkopfraum einschließenden Gehäusewand niederschlägt, so wird dieses von dem oberen Teil der Gehäusewand nicht nach unten abtropfen, sondern infolge der Adhäsionskraft an der kegelförmigen Wand entlang gleiten und sich in der Rinne am Ständerblechpaket sammeln, durch die es dann nach unten abgeleitet wird, ohne mit den Wickelköpfen in Berührung zu kommen. Damit ist die Betriebssicherheit derartiger geschlossener Maschinen wesentlich erhöht.The cavity connected to a pipeline i of the double-walled Housing 2 of an electrical machine is with a cooling liquid, for example Filled with water. The stator core 3 lies directly on the inner wall of the housing 4 at. The fans 6, which draw the internal air from the stator winding heads, sit on the shaft 5 7 to the inner wall parts 8 of the stator housing surrounding the winding head spaces to cool down. These parts of the inner wall are conical with after Laminated core designed to be tapered in diameter. On the pressure rings of the Ständerhlechpakets are bent approximately parallel to the conical inner walls Sheet metal strips io attached, which form grooves i i with the pressure rings. If During operation, when the machine is heated, the water vapor in the indoor air as Condensation condenses on the housing wall enclosing the winding head space, so this will not drip down from the upper part of the housing wall, but slide along the conical wall as a result of the adhesive force and move into collect the gutter on the stator core, through which it is then diverted downwards without coming into contact with the winding heads. This is the operational safety such closed machines increased significantly.

Claims (3)

PATENTANSPRÜCHE: i. ElektrischeMaschine geschlossener Bauart, insbesondere mit einem doppelwandigen und mit einem flüssigen Kühlmittel gefüllten Ständergehäus.e, dadurch gekennzeichnet, daß die die Wickelkopfräume überdeckenden Teile (8) des Gehäusemantels kegelförmig ausgebildet und an den Stellen des kleinsten Durchmessers Leitrinnen (i i) angeordnet sind. PATENT CLAIMS: i. Electric machine of closed design, in particular with a double-walled stator housing filled with a liquid coolant, characterized in that the parts (8) of the housing jacket covering the winding head spaces are conical in shape and guide channels (ii) are arranged at the locations of the smallest diameter. 2. Elektrische Maschine nach Anspruch i, dadurch gekennzeichnet, daß die Mantelteile über den Wickelkopfräumen mit nach dem Blechpaket zu sich verjüngendem Durchmesser ausgebildet sind. 2. Electrical machine according to claim i, characterized in that the jacket parts over the winding head spaces with after the laminated core are designed to be tapered in diameter. 3. Elektrische Maschine nach Anspruch i und 2, dadurch gekennzeichnet, daß die Leitrinnen (i i) von Blechpaketdruckringen (9) und von an den Druckringen befestigten, etwa parallel zu den kegelförmigen Innenwänden (8) verlaufenden Blechen (io) gebildet sind.3. Electric Machine according to claims i and 2, characterized in that the guide troughs (i i) of laminated core pressure rings (9) and attached to the pressure rings, approximately parallel to the conical inner walls (8) extending sheets (io) are formed.
DES21132A 1950-12-05 1950-12-05 Closed-type electrical machine Expired DE852717C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES21132A DE852717C (en) 1950-12-05 1950-12-05 Closed-type electrical machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES21132A DE852717C (en) 1950-12-05 1950-12-05 Closed-type electrical machine

Publications (1)

Publication Number Publication Date
DE852717C true DE852717C (en) 1952-10-16

Family

ID=7476333

Family Applications (1)

Application Number Title Priority Date Filing Date
DES21132A Expired DE852717C (en) 1950-12-05 1950-12-05 Closed-type electrical machine

Country Status (1)

Country Link
DE (1) DE852717C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008393B (en) * 1952-01-21 1957-05-16 Loher & Soehne G M B H Closed three-phase motor with cooling tubes and circulating internal cooling air flow
DE1024160B (en) * 1954-01-14 1958-02-13 Siemens Ag Electric machine with double-walled stand housing through which coolant fluid flows

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008393B (en) * 1952-01-21 1957-05-16 Loher & Soehne G M B H Closed three-phase motor with cooling tubes and circulating internal cooling air flow
DE1024160B (en) * 1954-01-14 1958-02-13 Siemens Ag Electric machine with double-walled stand housing through which coolant fluid flows

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