DE647153C - Cooling for completely closed electrical machines with double jacket - Google Patents

Cooling for completely closed electrical machines with double jacket

Info

Publication number
DE647153C
DE647153C DEA74060A DEA0074060A DE647153C DE 647153 C DE647153 C DE 647153C DE A74060 A DEA74060 A DE A74060A DE A0074060 A DEA0074060 A DE A0074060A DE 647153 C DE647153 C DE 647153C
Authority
DE
Germany
Prior art keywords
cooling
channels
completely closed
air
closed electrical
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
DEA74060A
Other languages
German (de)
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.)
ACEC
Original Assignee
ACEC
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 ACEC filed Critical ACEC
Application granted granted Critical
Publication of DE647153C publication Critical patent/DE647153C/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
    • H02K9/14—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

Landscapes

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

Description

Ö47153Ö47153

Die Erfindung betrifft eine Kühlung völlig geschlossener elektrischer Maschinen, mit Doppelmantel, bei der der innere, durch einen Ventilator bewirkte Luftumlauf aus einem durch die Kühlkanäle des Rotors führenden Hauptkreis und einen durch außerhalb des Rotors verlaufende Kanäle führenden Nebenschlußkreis besteht.The invention relates to a cooling of completely closed electrical machines, with Double jacket in which the inner air circulation, caused by a fan, comes from a through the cooling ducts of the rotor and one through the outside of the main circuit Rotor running channels leading shunt circuit consists.

Erfindungsgemäß wird man bei einer derartigen Kühlung eine raumsparende Unterbringung der Kühlkanäle und eine gesteigerte Kühlwirkung dadurch erzielen, daß der Nebenschlußkreis und der beiden Kreisen gemeinsame Teil durch am Statorumfang angeordnete, getrennte Kanäle verlaufen, die an dem inneren Gehäusemantel unmittelbar angrenzen, derart, daß die Innenkiihlluft durch die durch den äußeren Gehäusemantel geführte Außenkühlluft zurückgekühlt wird.According to the invention, space-saving accommodation is achieved with such a cooling the cooling channels and achieve an increased cooling effect that the bypass circuit and the two circles common part through arranged on the stator circumference, separate channels which on the Immediately adjoin the inner casing shell in such a way that the inner cooling air flows through the the external cooling air guided through the outer casing is cooled back.

Eine beispielsweise Ausführungsform einer Kühlluftführung gemäß der Erfindung zeigt die Zeichnung.An example embodiment of a cooling air duct according to the invention shows the drawing.

Der innere Luftumlauf ist aus zwei Kreisläufen zusammengesetzt. Der erste Kreislauf 3 enthält die Kanäle 8 in dem Rotor 2, in denen die Leistung dieses Kreislaufes durch die von ihnen verursachten Druckverluste eine Beschränkung erfährt. Ein zweiter Kreislauf verläuft gemäß den strichpunktierten Pfeilen 9 in Abb. 1 außerhalb des sich drehenden Teils. Dieser zweite Kreislauf 9 ist von dem ersten Kreislauf 3 abgezweigt, was durch entsprechende Bemessung der Kanalquerschnitte ermöglicht wird.The internal air circulation is composed of two circuits. The first cycle 3 contains the channels 8 in the rotor 2, in which the power of this circuit through that of pressure losses caused by them are limited. A second cycle is going on according to the dash-dotted arrows 9 in Fig. 1 outside the rotating part. This second circuit 9 is branched off from the first circuit 3, which is indicated by corresponding Dimensioning of the duct cross-sections is made possible.

Abb. 2 ist ein schematischer Schnitt gemäß der Linie A-B in Abb. 1 und zeigt ein Beispiel einer Anordnung der genannten Kreisläufe 3 und 9.Fig. 2 is a schematic section along the line AB in Fig. 1 and shows an example of an arrangement of said circuits 3 and 9.

Besondere Abteilungen 3' und 9' erlauben einen Umlauf der Luft in den Kreisläufen 3 und 9, in Berührung mit der Wand 7. Die L'mlaufsinne der Luft sind in der üblichen Art von Richtungsangaben angegeben. (Q (+)) Infolge des geringen Druckverlustes in den Abteilungen des Kreislaufes 9 wird die Leistung des Ventilators 4 durch die Kanäle S des Rotors weniger begrenzt, so daß diese Leistung beträchtlich größer ist. Die Geschwindigkeit der inneren Luft, die mit der Wand 7 in Berührung steht, wird stark erhöht, und die Kühlungsbedingungen werden verbessert.Special compartments 3 'and 9' allow the air to circulate in circuits 3 and 9, in contact with the wall 7. The air flow directions are in the usual Type of directions given. (Q (+)) As a result of the low pressure loss in the compartments of the circuit 9, the performance of the fan 4 is less limited by the channels S of the rotor, so that this power is considerably greater. The speed of the internal air in contact with the wall 7 is greatly increased, and the cooling conditions become improved.

Im übrigen hat das neue, sehr wirksame Kühlsystem den Vorteil, daß man es auf einfachste und billigste Weise praktisch durchführen kann.In addition, the new, very effective cooling system has the advantage that it can be used in the simplest possible way and cheapest way to practically perform.

Es ist natürlich möglich, die Einzelheiten der in den Abb. 1 und 2 dargestellten beispielsweisen Ausführungsform abzuändern, ohne daß dadurch der Rahmen der Erfindung verlassen wird.It is of course possible to have the details of those shown in Figs. 1 and 2 by way of example Modify embodiment without thereby departing from the scope of the invention.

Claims (2)

Patentansprüche:Patent claims: i. Kühlung für völlig geschlossene elekirische Maschinen mit Doppelmantel, bei der der innere, durch einen Ventilator bewirkte Luftumlauf aus einem durch die Kühlkanäle des Rotors führenden Hauptkreis und einem durch außerhalb des Rotors verlaufende Kanäle führenden Nebenschlußkreis besteht, dadurch gekennzeichnet, daß der Nebenschlußkreis und der beiden Kreisen gemeinsame Teil durch am Statorumfang angeordnete, getrennte Kanäle verlaufen, die an dem inneren Gehäusemantel unmittelbar angrenzen, derart, daß die Innenkühlluft durch die durch den äußeren Gehäusemantel geführte Außenkühlluft zurückgekühlt wird.i. Cooling for completely closed electrical systems Machines with a double jacket, in which the inner one, by a fan caused air circulation from a main circuit leading through the cooling ducts of the rotor and a shunt circuit leading through channels extending outside the rotor, characterized in that that the shunt circuit and the two circles common part by arranged on the stator circumference, separate Channels that directly adjoin the inner housing jacket run in such a way that that the internal cooling air is cooled back by the external cooling air passed through the outer casing. 2. Kühlung nach Anspruch 1, dadurch gekennzeichnet, daß die zu dem Nebenschlußkreis und dem beiden Kreisen gemeinsamen Teil gehörenden Kanäle auf dem Statorumfang in wechselnder Reihenfolge angeordnet sind und die Luft in nebeneinanderliegenden Kanälen in entgegengesetzter Richtung strömt.2. Cooling according to claim 1, characterized in that the to the shunt circuit and channels on the stator circumference belonging to the part common to both circles in alternating order are arranged and the air in side-by-side channels in opposite directions Direction flows. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEA74060A 1933-09-19 1937-06-10 Cooling for completely closed electrical machines with double jacket Expired DE647153C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE398684A BE398684A (en) 1933-09-19 1933-09-19 New cooling system for fully enclosed electric motors called double-envelope

Publications (1)

Publication Number Publication Date
DE647153C true DE647153C (en) 1937-06-29

Family

ID=83398709

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA74060A Expired DE647153C (en) 1933-09-19 1937-06-10 Cooling for completely closed electrical machines with double jacket

Country Status (5)

Country Link
BE (1) BE398684A (en)
DE (1) DE647153C (en)
FR (1) FR777893A (en)
GB (1) GB431822A (en)
NL (1) NL40475C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE952733C (en) * 1953-03-27 1956-11-22 Siemens Ag Device for air circulation for closed electric motors
DE1047927B (en) * 1952-06-13 1958-12-31 Siemens Ag Encapsulated, surface-cooled electrical machine with high performance and high speed

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908538A (en) * 1989-02-28 1990-03-13 Geberth John Daniel Jun Totally enclosed electric motor
EP3046225A1 (en) * 2015-01-16 2016-07-20 Siemens Aktiengesellschaft Electric rotary machine having one-sided cooling, and method for one-sided cooling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047927B (en) * 1952-06-13 1958-12-31 Siemens Ag Encapsulated, surface-cooled electrical machine with high performance and high speed
DE952733C (en) * 1953-03-27 1956-11-22 Siemens Ag Device for air circulation for closed electric motors

Also Published As

Publication number Publication date
BE398684A (en) 1933-10-31
FR777893A (en) 1935-03-02
NL40475C (en) 1937-04-15
GB431822A (en) 1935-07-16

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