DE835476C - Device for cooling closed electrical machines with internal and external cooling air flow - Google Patents
Device for cooling closed electrical machines with internal and external cooling air flowInfo
- Publication number
- DE835476C DE835476C DEP10842D DEP0010842D DE835476C DE 835476 C DE835476 C DE 835476C DE P10842 D DEP10842 D DE P10842D DE P0010842 D DEP0010842 D DE P0010842D DE 835476 C DE835476 C DE 835476C
- Authority
- DE
- Germany
- Prior art keywords
- fan
- fan motor
- main machine
- cooling air
- air flow
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Description
Bei verschiedenen Verwendungsarten von Elektromotoren, namentlich bei intermittierend stark belasteten Motoren läßt man den Lüfter, der Kühlluft durch den Motor bläst, oft nicht von dem Motor selbst, sondern von einem kleinen Lüftermotor antreiben, der auch nach Stillsetzung der Hauptmaschine weiterläuft. Man erzielt dadurch den Vorteil, daß auch die Betriebspausen für die Kühlung ausgenutzt werden können.With different types of use of electric motors, namely in the case of intermittently heavily loaded engines, the fan and the cooling air are allowed through the motor blows, often not from the motor itself, but from a small fan motor that continues to run even after the main engine has been shut down. One achieves this has the advantage that the breaks in operation are also used for cooling can.
Erfindungsgemäß wird diese Kühlungsart mit besonderem Lüftermotor, auf geschlossene elektrische Maschinen mit Innen- und Außenkühlluftstrom in der Weise angewendet, daß der Lüftermotor Lüfter für den Antrieb beider Kühlluftströme betätigt. Man erzielt dadurch auch bei geschlossenen, intermittierend arbeitenden elektrischen Maschinen eine hervorragende Kühlung. Es empfiehlt sich, den Lüftermotor koaxial zur Hauptmaschine anzuordnen. Die beiden Lüfter können entweder unmittelbar zu beiden Seiten einer von der Lüftermotorwelle durchdrungenen, die Hauptmaschine abkapselnden Stirnwafid angeordnet werden, oder man kann den Lüftermotor an oder in dieser Stirnwand zwischen die beiden Lüfter bauen.According to the invention, this type of cooling is provided with a special fan motor, on closed electrical machines with internal and external cooling air flow in the Way applied that the fan motor fan for driving both cooling air flows actuated. You can also achieve this with closed, intermittently working electrical machines provide excellent cooling. It is best to use the fan motor to be arranged coaxially to the main engine. The two fans can either be immediate on either side of a shaft penetrated by the fan motor, the main engine encapsulating forehead wafid can be arranged, or you can turn the fan motor on or build in this front wall between the two fans.
Die Erfindung wird an Hand der in der Zeichnung dargestellten Ausführungsbeispiele näher erläutert. In Fig. i sind an der Stirnseite eines mit Außenrippen i versehenen Gehäuses 2 einer geschlossenen Hauptmaschine mit der Welle 3 ein ein Lager 4 tragendes Zwischenschild 5 und ein Stirnschild 6, das die Stirnseite der Hauptmaschine abkapselt und von der Welle 7 des Lüftermotors 8 durchdrungen wird, befestigt. Unmittelbar zu beiden Seiten des Stirnschildes 6 sind ein Innenlüfter 9 und ein Außenlüfter io angeordnet. Das Stirnschild 6 bildet zusammen mit einem den Außenlüfter io umschließenden Führungskörper ii für den Außenkühlluftstrom ein zusammenhängendes Gußstück. An dieses Stück ist mittels eines zwecks Kühlluftdurchtritts bei 12 durchbrochenen Flansches 13 der Lüftermotor 8 befestigt. Die Kühlluftströme haben den bei geschlossenen Maschinen üblichen Verlauf.The invention is based on the embodiments shown in the drawing explained in more detail. In Fig. I are provided with outer ribs i on the end face Housing 2 of a closed main machine with the shaft 3 a bearing 4 supporting Intermediate shield 5 and a front shield 6 that encapsulates the front of the main engine and is penetrated by the shaft 7 of the fan motor 8, attached. Direct on both sides of the front shield 6 are an inner fan 9 and an outer fan io arranged. The front shield 6 forms together with an external fan that surrounds it Guide body ii for the external cooling air flow a coherent casting. At this piece is perforated at 12 for the purpose of cooling air passage Flange 13 of the fan motor 8 attached. The cooling air flows have the closed Machines usual course.
In Fig. 2 ist in dem Gehäuse 2 der Hauptmaschine das Lager 4 für die Hauptmaschinenwelle 3 angeordnet. In dem Stirnschild 6 sitzt der Lüftermotor 8, der hier zwischen dem Innenlüfter 9 und dem Außenlüfter io angebracht ist. Der Führungskörper ii bildet hier einen besonderen, an den Enden der Außenrippen i zentrierten Teil. Natürlich könnte auch hier das Hauptmaschinenlager 4 an einem Zwischenschild 5, wie in Fig. i gezeigt, angebracht sein. Die Ausführungsform nach Fig.2 bietet noch den besonderen Vorteil, daß die Eintrittsöffnung 14 für den Außenkühlluftstrom durch das Gehäuse des Lüftermotors 8 nicht verkleinert wird.In Fig. 2, the bearing 4 is in the housing 2 of the main machine for the Main machine shaft 3 arranged. The fan motor 8 sits in the front shield 6, which is attached here between the inner fan 9 and the outer fan io. The guide body ii here forms a special part centered on the ends of the outer ribs i. Of course, the main machine bearing 4 could also be attached to an intermediate plate 5, as shown in Fig. i, attached. The embodiment of Figure 2 still offers the particular advantage that the inlet opening 14 for the outside cooling air flow through the housing of the fan motor 8 is not reduced in size.
Durch die Erfindung erhält man eine kräftige Belüftung für geschlossene Maschinen, die auch bei Stillstand der Maschine arbeitet. Die in den Ausführungsbeispielen dargestellte Fremdbelüftungsvorrichtung kann ohne besondere Schwierigkeiten an sonst mit Eigenbelüftung arbeitenden geschlossenen Maschinen angebracht werden.The invention gives a powerful ventilation for closed Machines that work even when the machine is at a standstill. In the exemplary embodiments The external ventilation device shown can otherwise be used without any particular difficulties self-ventilated closed machines.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP10842D DE835476C (en) | 1948-10-02 | 1948-10-02 | Device for cooling closed electrical machines with internal and external cooling air flow |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP10842D DE835476C (en) | 1948-10-02 | 1948-10-02 | Device for cooling closed electrical machines with internal and external cooling air flow |
Publications (1)
Publication Number | Publication Date |
---|---|
DE835476C true DE835476C (en) | 1952-03-31 |
Family
ID=7363147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP10842D Expired DE835476C (en) | 1948-10-02 | 1948-10-02 | Device for cooling closed electrical machines with internal and external cooling air flow |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE835476C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1000103B (en) * | 1954-05-08 | 1957-01-03 | Licentia Gmbh | Friction wheel drive for fans of electrical machines located coaxially to the machine shaft |
DE1011051B (en) * | 1954-06-04 | 1957-06-27 | Siemens Ag | Arrangement for cooling electrical machines with changing speed, in particular three-phase shunt commutator motors, by means of a cooling air flow passed through a filter |
DE1034257B (en) * | 1955-10-31 | 1958-07-17 | Siemens Schuckertwerke Gmbh | Pendulum machine with a fan driven by a coaxially arranged motor |
DE1132645B (en) * | 1960-03-22 | 1962-07-05 | Heinrich Hinz Elmasch Und Appb | A vertically arranged electric motor in tandem design equipped with a ventilation device |
US4553055A (en) * | 1983-07-22 | 1985-11-12 | Siemens Aktiengesellschaft | Cooling arrangement for an enclosed electric machine |
US6927511B2 (en) | 2003-06-17 | 2005-08-09 | Black & Decker Inc. | Generator having dual path airflow cooling arrangement and method therefor |
-
1948
- 1948-10-02 DE DEP10842D patent/DE835476C/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1000103B (en) * | 1954-05-08 | 1957-01-03 | Licentia Gmbh | Friction wheel drive for fans of electrical machines located coaxially to the machine shaft |
DE1011051B (en) * | 1954-06-04 | 1957-06-27 | Siemens Ag | Arrangement for cooling electrical machines with changing speed, in particular three-phase shunt commutator motors, by means of a cooling air flow passed through a filter |
DE1034257B (en) * | 1955-10-31 | 1958-07-17 | Siemens Schuckertwerke Gmbh | Pendulum machine with a fan driven by a coaxially arranged motor |
DE1132645B (en) * | 1960-03-22 | 1962-07-05 | Heinrich Hinz Elmasch Und Appb | A vertically arranged electric motor in tandem design equipped with a ventilation device |
US4553055A (en) * | 1983-07-22 | 1985-11-12 | Siemens Aktiengesellschaft | Cooling arrangement for an enclosed electric machine |
US6927511B2 (en) | 2003-06-17 | 2005-08-09 | Black & Decker Inc. | Generator having dual path airflow cooling arrangement and method therefor |
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