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EP2318251B1 - Rail vehicle switchable between winter and summer operation - Google Patents

Rail vehicle switchable between winter and summer operation Download PDF

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Publication number
EP2318251B1
EP2318251B1 EP09781994A EP09781994A EP2318251B1 EP 2318251 B1 EP2318251 B1 EP 2318251B1 EP 09781994 A EP09781994 A EP 09781994A EP 09781994 A EP09781994 A EP 09781994A EP 2318251 B1 EP2318251 B1 EP 2318251B1
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EP
European Patent Office
Prior art keywords
inlet opening
rail vehicle
cooling
air
snow
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.)
Not-in-force
Application number
EP09781994A
Other languages
German (de)
French (fr)
Other versions
EP2318251A1 (en
Inventor
Thomas Baumann
Burkhard Halfmann
Rüdiger MANGLER
Arnd RÜTER
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP2318251A1 publication Critical patent/EP2318251A1/en
Application granted granted Critical
Publication of EP2318251B1 publication Critical patent/EP2318251B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C3/00—Electric locomotives or railcars

Definitions

  • the invention relates to a rail vehicle with a cooling arrangement for components arranged in an underfloor area, such as e.g. a power supply block, a power converter, a transformer or a traction motor. These are cooled either directly or via an associated cooler, wherein the cooling arrangement has at least a first inlet opening for fresh air to be used as cooling air, which is arranged in the underfloor area, and at least one fan for guiding the cooling air in the direction of at least one of the components, and the cooling arrangement has at least one second inlet opening fluidly connected to the fan for fresh air to be used as cooling air, which is arranged above side skirts of the rail vehicle and connected to the underfloor area via an air duct.
  • a cooling arrangement for components arranged in an underfloor area, such as e.g. a power supply block, a power converter, a transformer or a traction motor.
  • first inlet openings those which are arranged in an underfloor region of the rail vehicle, while second inlet openings are always above the side skirts, for example in the roof area.
  • Such a rail vehicle is for example from the DE 10 2006 032 335 A1 known.
  • the rail vehicle described therein is designed to be switched between a winter and a summer operation.
  • the two mentioned inlet openings of which the first in the area of the side skirts are used for a summer operation, while the second inlet openings are assigned, for example in the roof area a winter operation.
  • winter operation is also provided that all inlet openings in the side skirt area remain closed.
  • the present invention seeks to further develop the aforementioned rail vehicle so that the climatic conditions in a transition temperature range between summer and winter can be better taken into account.
  • the at least one first inlet opening is equipped with a snow filter.
  • a snow filter has the property to add when exposed to snow. This means that in a snow-free time within the winter operation equipped with a snow filter first inlet openings continue to be used as a cooling air supply. Only when the temperatures or climatic conditions are generally such that the snow filters are added with snow, only the second inlet openings in the roof area are used. It makes use of the fact that the snow filters have the property of moving through the snow so that they close to a certain extent "automatically”.
  • the snow filter is disposed behind a skirt grid, i. at a location that allows clogging of the snow filter to safely close the inlet opening.
  • first inlet openings in the area of the side skirts are designed to be closable for winter operation and the at least one first inlet opening is assigned to a traction motor ventilator.
  • the other first inlet openings may for example be assigned to other underfloor electrical components which are also to be cooled. These all entry openings are closed during winter operation. Only the inlet opening for the traction motor or traction motors is then equipped with the snow filter.
  • snow filters are mounted, so that a plurality of first inlet openings is provided with snow filters.
  • An example of this would be the provision of a snow filter on the EVB in a battery cart.
  • the snow filter may be constructed from one or more porous filter layers. These filter layers are mounted behind the apron grilles of the floor pan in winter operation.
  • FIG. 1 The representation of a railcar 1 in FIG. 1 shows an underfloor area 2, in which various electrical components are housed, which are to be cooled during operation.
  • Bogies 3 are equipped with associated traction motors 4, which are cooled by means of respective traction motor 5 fans.
  • An underside of the multiple unit 1 is fluidly sealed by means of a bottom tray 6, so that 6 cooling air flows can be performed above the floor pan.
  • Above the base tray 6 is also a further electrical unit 7, which may be a power supply block, a power converter or a transformer, more precisely cooling units of the devices concerned.
  • the bottom tray 6 continues at its outer edges in side skirts 8 of the multiple unit 1.
  • first inlet grids 9 for fresh air to be used as cooling air are provided for the purpose of forming first inlet openings.
  • Fresh air entering via this inlet grille 9 is used by the traction motor fans 5, for example for cooling the traction motors 4.
  • the power converter cooling system 10 which is provided within the floor pan 6 and in the longitudinal direction of the railcar 1 approximately in the middle, draws cooling air for cooling the power converter 7.
  • the traction motor fan 5 pull air to cool the traction motors. 4
  • second inlet grates 11 for forming second inlet openings 11.
  • Fresh air flowing in via the second inlet grates 11 initially reaches respectively associated separating gratings 12 which, viewed in the longitudinal direction of the railcar 1, are inclined and inclined Direction to a vertically extending air duct 13 are arranged inclined downwards.
  • a support fan 14 conveys cooling air from the roof area in the direction of the cooling system 10.
  • There may be further air ducts which are arranged one behind the other in the vehicle longitudinal direction and transport cooling air to the underfloor area 6, in which case all the air ducts emanate from second inlet openings.
  • a cooling arrangement for the underfloor area of the railcar 1 is thus composed of two inlet openings with the second inlet grille 11 in the roof area and two inlet openings of the first inlet grille 9 in the side skirt area of the multiple unit 1, the air duct 13 and the cooling system 10, which may comprise a plurality of fans together.
  • the cooling system 10 which may comprise a plurality of fans together.
  • an air outlet 15 is provided in the otherwise sealed floor pan 6, which serves as an outlet for the cooling air flow of a cooling system.
  • the cooling arrangement can be switched manually or automatically between a summer operation and a winter operation.
  • the purpose of this is a control module, which is not shown here in detail, and which can be designed such that the proportion of cooling air from the first inlet grids 9 in the range between 30 and 100% and the proportion of cooling air from the second inlet grids 11 in the range between 0 during operation in summer and 70% lies.
  • the further inlet grates are closed manually or automatically, so that the cooling air is basically provided exclusively by the second inlet grids 11.
  • This procedure has the advantage that in winter operation, the fresh air used as cooling air is substantially free of snow. Due to the arrangement of the second inlet grille 11 in the roof area, highly swirled snow can not hit the second inlet grille 11. During snowfall, the separation grids 12 act to filter snow present in the air before the fresh air is further conveyed through the air duct 13 by means of the support fan 14.
  • FIG. 2 now shows a portion of the floor pan 6 of the rail vehicle, and seen from an inner side. Shown are two juxtaposed inlet openings, of which the right in the FIG. 2 belongs to a first inlet grille 9, flows through the fresh air for cooling of traction motors.
  • a snow filter 16 is arranged for winter operation of the rail vehicle. The snow filter 16 serves to ensure a satisfactory cooling of the traction motors 4 for a temperature transition region in which a conversion to winter operation has already taken place. If there is no snow, the traction motors 4 receive cooling air both from the second intake grates 11 in the roof area and via the first intake grates 9, because the snow filter 16 is completely permeable to air. In worse weather conditions with the onset of snow, the snow filter 16 sets with appropriate exposure to snow, so that in this case a complete seal of the bottom tray 6 is realized and to be provided cooling air flows exclusively through the second inlet grille 11.
  • the snow filter 16 is thus arranged directly behind the intake grates 9. It consists of one or more porous filter layers.
  • the snow filter 16 can be mounted on a ventilation apron in order to supply the downstream components (cooling air consumers) with cooling air even in winter. In the case of snow, this snow filter 16 sets in, and the cooling air can only reach the components via the roof duct, including fans. This roof channel alone can not guarantee the air requirement at summer temperatures.
  • first inlet grille 9 equipped with snow filters 16, so that other components with high Cooling air required even in winter operation can receive additional cooling air.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention relates to a rail vehicle (1) comprising a cooling apparatus for components disposed in a sub-floor area (2), such as an energy supply block, a power converter, a transformer or a drive motor (4), said components cooled either directly or by way of an associated cooler, wherein the cooling apparatus comprises at least one first inlet opening for fresh air used as cooling air, said opening being disposed in the sub-floor area (2), and at least one fan (5) for feeding the cooling air in the direction of at least one of the components (4), and wherein the cooling apparatus comprises at least one second inlet opening for fresh air used as cooling air, said second inlet opening being fluidically connected to the fan (5) and disposed above lateral skirts (8) of the rail vehicle (1) and being connected to the sub-floor area (2) by way of an air channel (13), wherein the first inlet opening is equipped with a snow filter (16).

Description

Die Erfindung bezieht sich auf ein Schienenfahrzeug mit einer Kühlanordnung für in einem Unterflurbereich angeordnete Komponenten, wie z.B. ein Energieversorgungsblock, ein Stromrichter, ein Transformator oder ein Fahrmotor. Diese werden entweder direkt oder über einen zugehörigen Kühler gekühlt, wobei die Kühlanordnung wenigstens eine erste Eintrittsöffnung für als Kühlluft zu verwendende Frischluft, die in dem Unterflurbereich angeordnet ist, und wenigstens einen Lüfter zum Führen der Kühlluft in Richtung auf mindestens eine der Komponenten aufweist, und die Kühlanordnung wenigstens eine mit dem Lüfter strömungstechnisch verbundene zweite Eintrittsöffnung für als Kühlluft zu verwendende Frischluft aufweist, die oberhalb von Seitenschürzen des Schienenfahrzeugs angeordnet und über einen Luftkanal mit dem Unterflurbereich verbunden ist.The invention relates to a rail vehicle with a cooling arrangement for components arranged in an underfloor area, such as e.g. a power supply block, a power converter, a transformer or a traction motor. These are cooled either directly or via an associated cooler, wherein the cooling arrangement has at least a first inlet opening for fresh air to be used as cooling air, which is arranged in the underfloor area, and at least one fan for guiding the cooling air in the direction of at least one of the components, and the cooling arrangement has at least one second inlet opening fluidly connected to the fan for fresh air to be used as cooling air, which is arranged above side skirts of the rail vehicle and connected to the underfloor area via an air duct.

Zur Differenzierung unter den Eintrittsöffnungen werden nachstehend als erste Eintrittsöffnungen solche verstanden, die in einem Unterflurbereich des Schienenfahrzeugs angeordnet sind, während zweite Eintrittsöffnungen immer oberhalb der Seitenschürzen liegen, beispielsweise im Dachbereich.For the differentiation under the inlet openings are hereinafter understood as the first inlet openings those which are arranged in an underfloor region of the rail vehicle, while second inlet openings are always above the side skirts, for example in the roof area.

Ein solches Schienenfahrzeug ist beispielsweise aus der DE 10 2006 032 335 A1 bekannt. Das dort beschriebene Schienenfahrzeug ist dazu ausgelegt, zwischen einem Winter- und einem Sommerbetrieb umgeschaltet zu werden. Dazu dienen die beiden erwähnten Eintrittsöffnungen, von denen die ersten im Bereich der Seitenschürzen für einen Sommerbetrieb zum Einsatz kommen, während die zweiten Eintrittsöffnungen beispielsweise im Dachbereich einem Winterbetrieb zugeordnet sind. Im Winterbetrieb ist außerdem vorgesehen, dass sämtliche Eintrittsöffnungen im Seitenschürzenbereich verschlossen bleiben.Such a rail vehicle is for example from the DE 10 2006 032 335 A1 known. The rail vehicle described therein is designed to be switched between a winter and a summer operation. For this purpose, the two mentioned inlet openings, of which the first in the area of the side skirts are used for a summer operation, while the second inlet openings are assigned, for example in the roof area a winter operation. In winter operation is also provided that all inlet openings in the side skirt area remain closed.

Für den Fall, dass die Umrüstung von Sommer- auf Winterbetrieb (und umgekehrt) an kalendarisch festgelegten Zeitpunkten stattfindet, die anhand der erwarteten Temperatur festgelegt werden, ergibt sich das folgende Problem: Auch nach Umrüstung auf den Winterbetrieb ist es möglich, dass entgegen den Erwartungen trotzdem hohe Außentemperaturen herrschen, die eine geeignete Kühlung insbesondere der Fahrmotoren erfordern. Dies lässt sich zwar über die Zuführung von Kühlluft über die zweite Einrittsöffnung, die im Dachbereich vorgesehen sein kann, grundsätzlich bewerkstelligen. Es wäre jedoch wünschenswert, wenn für einen Übergangstemperaturbereich nicht ausschließlich auf die Kühlluftzuführung aus der zweiten Eintrittsöffnung zurück gegriffen werden müsste. Dies hat nämlich die Folge, dass sehr große Luftkanäle und Stützlüfter mit erhöhten Leistungsreserven vorzusehen wären.In the event that the conversion from summer to winter operation (and vice versa) takes place at calendar-fixed times, which are determined by the expected temperature, the following problem arises: Even after conversion to winter operation, it is possible that contrary to expectations nevertheless high outside temperatures prevail, which require suitable cooling, in particular of the traction motors. This can in principle be accomplished by supplying cooling air via the second entry opening, which may be provided in the roof area. However, it would be desirable if, for a transition temperature range, it would not be necessary to resort exclusively to the cooling air feed from the second inlet opening. This has the consequence that very large air ducts and support fans would be provided with increased power reserves.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, das eingangs genannte Schienenfahrzeug derart weiterzuentwickeln, dass den klimatischen Bedingungen in einem Übergangstemperaturbereich zwischen Sommer und Winter besser Rechnung getragen werden kann.Based on this, the present invention seeks to further develop the aforementioned rail vehicle so that the climatic conditions in a transition temperature range between summer and winter can be better taken into account.

Diese Aufgabe wird dadurch gelöst, dass die wenigstens eine erste Eintrittsöffnung mit einem Schneefilter ausgestattet ist. Ein solcher Schneefilter hat die Eigenschaft, sich bei Beaufschlagung mit Schnee zuzusetzen. Dies bedeutet, dass in einer schneefreien Zeit innerhalb des Winterbetriebs die mit einem Schneefilter ausgestatteten ersten Eintrittsöffnungen weiterhin als Kühlluftzuführung nutzbar sind. Erst wenn die Temperaturen bzw. die klimatischen Verhältnisse allgemein so beschaffen sind, dass die Schneefilter mit Schnee zugesetzt werden, kommen ausschließlich die zweiten Eintrittsöffnungen im Dachbereich zum Einsatz. Dabei wird ausgenutzt, dass die Schneefilter die Eigenschaft haben, sich durch den Schnee zuzusetzen, so dass sie sich gewissermaßen "automatisch" verschließen.This object is achieved in that the at least one first inlet opening is equipped with a snow filter. Such a snow filter has the property to add when exposed to snow. This means that in a snow-free time within the winter operation equipped with a snow filter first inlet openings continue to be used as a cooling air supply. Only when the temperatures or climatic conditions are generally such that the snow filters are added with snow, only the second inlet openings in the roof area are used. It makes use of the fact that the snow filters have the property of moving through the snow so that they close to a certain extent "automatically".

Bevorzugt ist der Schneefilter hinter einem Schürzengitter angeordnet, d.h. an einer Stelle, die es gestattet, dass ein Zusetzen des Schneefilters ein Verschließen der Eintrittöffnung sicher zu Folge hat.Preferably, the snow filter is disposed behind a skirt grid, i. at a location that allows clogging of the snow filter to safely close the inlet opening.

Es ist vorteilhaft, wenn weitere erste Eintrittsöffnungen im Bereich der Seitenschürzen für einen Winterbetrieb verschließbar ausgebildet sind und die wenigstens eine erste Eintrittsöffnung einem Fahrmotorlüfter zugeordnet ist. Die weiteren ersten Eintrittsöffnungen können beispielsweise anderen unterflur angeordneten elektrischen Komponenten, die ebenfalls zu kühlen sind, zugewiesen sein. Diese sämtlichen Eintrittsöffnungen werden im Winterbetrieb geschlossen. Lediglich die Eintrittsöffnung für den Fahrmotor bzw. die Fahrmotoren ist dann mit dem Schneefilter ausgestattet.It is advantageous if further first inlet openings in the area of the side skirts are designed to be closable for winter operation and the at least one first inlet opening is assigned to a traction motor ventilator. The other first inlet openings may for example be assigned to other underfloor electrical components which are also to be cooled. These all entry openings are closed during winter operation. Only the inlet opening for the traction motor or traction motors is then equipped with the snow filter.

Alternativ dazu ist es auch möglich, dass an anderen Stellen des Unterflurbereichs Schneefilter angebracht sind, so dass eine Mehrzahl erster Eintrittsöffnungen mit Schneefiltern versehen ist. Ein Beispiel dafür wäre, das Vorsehen eines Schneefilters am EVB in einem Batteriewagen.Alternatively, it is also possible that at other locations of the underfloor region snow filters are mounted, so that a plurality of first inlet openings is provided with snow filters. An example of this would be the provision of a snow filter on the EVB in a battery cart.

Damit ist sichergestellt, dass im Winterbetrieb ein erhöhter Kühlluftbedarf der Fahrmotoren bei Außentemperaturen bis ca. 25°C durch einen zusätzlichen Lufteinstrom durch die Seitenschürzen (erste Eintrittsöffnung) abgesichert ist.This ensures that in winter operation, an increased cooling air requirement of the traction motors at outside temperatures up to about 25 ° C by an additional air inflow through the side skirts (first inlet) is secured.

Der Schneefilter kann aus einer oder mehreren porösen Filterlagen aufgebaut sein. Diese Filterlagen sind hinter den Schürzengittern der Bodenwanne im Winterbetrieb montiert.The snow filter may be constructed from one or more porous filter layers. These filter layers are mounted behind the apron grilles of the floor pan in winter operation.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend unter Bezugnahme auf die Zeichnung noch näher erläutert. Es zeigen:

Figur 1
eine Seitenansicht, teilweise im Schnitt, eines Triebwagens als Beispiel für ein Schienenfahrzeug und
Figur 2
eine perspektivische Ansicht eines Abschnitts einer Bodenwanne des Schienenfahrzeugs.
An embodiment of the invention will be explained in more detail with reference to the drawings. Show it:
FIG. 1
a side view, partially in section, of a railcar as an example of a rail vehicle and
FIG. 2
a perspective view of a portion of a floor pan of the rail vehicle.

Die Darstellung eines Triebwagens 1 in Figur 1 zeigt einen Unterflurbereich 2, in dem verschiedene elektrische Komponenten untergebracht sind, die bei Betrieb zu kühlen sind. Drehgestelle 3 sind mit zugehörigen Fahrmotoren 4 ausgestattet, welche mit Hilfe von jeweiligen Fahrmotorlüftern 5 gekühlt werden. Eine Unterseite des Triebzuges 1 ist mit Hilfe einer Bodenwanne 6 strömungstechnisch abgedichtet, so dass oberhalb der Bodenwanne 6 Kühlluftströmungen geführt werden können. Oberhalb der Bodenwanne 6 befindet sich außerdem ein weiteres elektrisches Aggregat 7, bei dem es sich um einen Energieversorgungsblock, einen Stromrichter oder einen Transformator, genauer Kühleinheiten der betroffenen Geräte, handeln kann. Die Bodenwanne 6 setzt sich an ihren Außenkanten in Seitenschürzen 8 des Triebzuges 1 fort. Im Bereich dieser Seitenschürzen 8 sind zur Ausbildung erster Eintrittsöffnungen erste Einlassgitter 9 für als Kühlluft zu verwendende Frischluft vorgesehen. Über diese Einlassgitter 9 eintretende Frischluft wird von den Fahrmotorlüftern 5 beispielsweise zum Kühlen der Fahrmotoren 4 verwendet. Die Stromrichterkühlanlage 10, die innerhalb der Bodenwanne 6 und in Längsrichtung des Triebwagens 1 etwa in der Mitte vorgesehen ist, zieht sich Kühlluft zur Kühlung des Stromrichters 7. Die Fahrmotorlüfter 5 ziehen sich Luft zum Kühlen der Fahrmotoren 4.The representation of a railcar 1 in FIG. 1 shows an underfloor area 2, in which various electrical components are housed, which are to be cooled during operation. Bogies 3 are equipped with associated traction motors 4, which are cooled by means of respective traction motor 5 fans. An underside of the multiple unit 1 is fluidly sealed by means of a bottom tray 6, so that 6 cooling air flows can be performed above the floor pan. Above the base tray 6 is also a further electrical unit 7, which may be a power supply block, a power converter or a transformer, more precisely cooling units of the devices concerned. The bottom tray 6 continues at its outer edges in side skirts 8 of the multiple unit 1. In the region of these side skirts 8, first inlet grids 9 for fresh air to be used as cooling air are provided for the purpose of forming first inlet openings. Fresh air entering via this inlet grille 9 is used by the traction motor fans 5, for example for cooling the traction motors 4. The power converter cooling system 10, which is provided within the floor pan 6 and in the longitudinal direction of the railcar 1 approximately in the middle, draws cooling air for cooling the power converter 7. The traction motor fan 5 pull air to cool the traction motors. 4

Im Dachbereich des Triebwagens 1 finden sich zur Ausbildung zweiter Eintrittsöffnungen zweite Einlassgitter 11. Über die zweiten Einlassgitter 11 einströmende Frischluft gelangt zunächst zu jeweils zugehörigen Abscheidegittern 12, die, in Längsrichtung des Triebwagens 1 gesehen, schräg und in Richtung auf einen vertikal verlaufenden Luftkanal 13 nach unten geneigt angeordnet sind. Ein Stützlüfter 14 befördert Kühlluft aus dem Dachbereich in Richtung auf die Kühlanlage 10. Es können weitere Luftkanäle vorgesehen sein, die in Fahrzeuglängsrichtung hintereinander angeordnet sind und Kühlluft zu dem Unterflurbereich 6 transportieren, wobei dann alle Luftkanäle von zweiten Eintrittsöffnungen ausgehen.In the roof area of the railcar 1, there are second inlet grates 11 for forming second inlet openings 11. Fresh air flowing in via the second inlet grates 11 initially reaches respectively associated separating gratings 12 which, viewed in the longitudinal direction of the railcar 1, are inclined and inclined Direction to a vertically extending air duct 13 are arranged inclined downwards. A support fan 14 conveys cooling air from the roof area in the direction of the cooling system 10. There may be further air ducts which are arranged one behind the other in the vehicle longitudinal direction and transport cooling air to the underfloor area 6, in which case all the air ducts emanate from second inlet openings.

Eine Kühlanordnung für den Unterflurbereich des Triebwagens 1 setzt sich somit aus zwei Einlassöffnungen mit den zweiten Einlassgittern 11 im Dachbereich und zwei Einlassöffnungen der ersten Einlassgitter 9 im Seitenschürzenbereich des Triebzuges 1, dem Luftkanal 13 und der Kühlanlage 10, die mehrere Lüfter umfassen kann, zusammen. Unterhalb der Kühlanlage 10 ist in der ansonsten abgedichteten Bodenwanne 6 ein Luftauslass 15 vorgesehen, der als Auslass für den Kühlluftstrom einer Kühlanlage dient.A cooling arrangement for the underfloor area of the railcar 1 is thus composed of two inlet openings with the second inlet grille 11 in the roof area and two inlet openings of the first inlet grille 9 in the side skirt area of the multiple unit 1, the air duct 13 and the cooling system 10, which may comprise a plurality of fans together. Below the cooling system 10, an air outlet 15 is provided in the otherwise sealed floor pan 6, which serves as an outlet for the cooling air flow of a cooling system.

Die Kühlanordnung kann manuell oder automatisch zwischen einem Sommerbetrieb und einem Winterbetrieb umgeschaltet werden. Dazu dient ein hier nicht näher dargestelltes Steuermodul, das derart ausgelegt sein kann, das bei Betrieb im Sommer der Anteil der Kühlluft von den ersten Einlassgittern 9 im Bereich zwischen 30 und 100% und der Anteil der Kühlluft von den zweiten Einlassgittern 11 im Bereich zwischen 0 und 70% liegt. Im Winterbetrieb werden demgegenüber die weiteren Einlassgitter manuell oder automatisch verschlossen, so dass die Kühlluft grundsätzlich ausschließlich von den zweiten Einlassgittern 11 bereitgestellt wird. Diese Vorgehensweise hat den Vorteil, dass im Winterbetrieb die als Kühlluft verwendete Frischluft im Wesentlichen schneefrei ist. Aufgrund der Anordnung der zweiten Einlassgitter 11 im Dachbereich kann hochgewirbelter Schnee nicht auf die zweiten Einlassgitter 11 treffen. Bei Schneefall wirken die Abscheidegitter 12 in der Weise, dass in der Luft vorhandener Schnee gefiltert wird, bevor die Frischluft mit Hilfe des Stützlüfters 14 weiter durch den Luftkanal 13 befördert wird.The cooling arrangement can be switched manually or automatically between a summer operation and a winter operation. The purpose of this is a control module, which is not shown here in detail, and which can be designed such that the proportion of cooling air from the first inlet grids 9 in the range between 30 and 100% and the proportion of cooling air from the second inlet grids 11 in the range between 0 during operation in summer and 70% lies. In winter operation, on the other hand, the further inlet grates are closed manually or automatically, so that the cooling air is basically provided exclusively by the second inlet grids 11. This procedure has the advantage that in winter operation, the fresh air used as cooling air is substantially free of snow. Due to the arrangement of the second inlet grille 11 in the roof area, highly swirled snow can not hit the second inlet grille 11. During snowfall, the separation grids 12 act to filter snow present in the air before the fresh air is further conveyed through the air duct 13 by means of the support fan 14.

Figur 2 zeigt nun einen Abschnitt der Bodenwanne 6 des Schienenfahrzeugs, und zwar von einer Innenseite aus gesehen. Dargestellt sind zwei nebeneinander angeordneten Einlassöffnungen, von denen die rechte in der Figur 2 zu einem ersten Einlassgitter 9 gehört, über das Frischluft zur Kühlung von Fahrmotoren einströmt. Auf einer Innenseite des Einlassgitters 9 ist für einen Winterbetrieb des Schienenfahrzeugs ein Schneefilter 16 angeordnet. Der Schneefilter 16 dient dazu, für einen Temperaturübergangsbereich, bei dem bereits eine Umrüstung auf Winterbetrieb stattgefunden hat, für eine zufriedenstellende Kühlung der Fahrmotoren 4 zu sorgen. Liegt kein Schnee vor, erhalten die Fahrmotoren 4 Kühlluft sowohl von den zweiten Einlassgittern 11 im Dachbereich aus als auch über die ersten Einlassgitter 9, denn der Schneefilter 16 ist vollständig luftdurchlässig. Bei schlechterer Witterungslage mit Anfall von Schnee setzt sich der Schneefilter 16 bei entsprechender Beaufschlagung mit Schnee zu, so dass in diesem Fall eine vollständige Abdichtung der Bodenwanne 6 verwirklicht wird und bereitzustellende Kühlluft ausschließlich über die zweiten Einlassgitter 11 einströmt. FIG. 2 now shows a portion of the floor pan 6 of the rail vehicle, and seen from an inner side. Shown are two juxtaposed inlet openings, of which the right in the FIG. 2 belongs to a first inlet grille 9, flows through the fresh air for cooling of traction motors. On an inner side of the inlet grille 9, a snow filter 16 is arranged for winter operation of the rail vehicle. The snow filter 16 serves to ensure a satisfactory cooling of the traction motors 4 for a temperature transition region in which a conversion to winter operation has already taken place. If there is no snow, the traction motors 4 receive cooling air both from the second intake grates 11 in the roof area and via the first intake grates 9, because the snow filter 16 is completely permeable to air. In worse weather conditions with the onset of snow, the snow filter 16 sets with appropriate exposure to snow, so that in this case a complete seal of the bottom tray 6 is realized and to be provided cooling air flows exclusively through the second inlet grille 11.

Der Schneefilter 16 ist somit unmittelbar hinter den Einlassgittern 9 angeordnet. Er besteht aus einer oder mehreren porösen Filterlagen.The snow filter 16 is thus arranged directly behind the intake grates 9. It consists of one or more porous filter layers.

Der Schneefilter 16 kann an eine Lüftungsschürze montiert werden, um die dahinter liegenden Komponenten (Kühlluftverbraucher) auch im Winter mit Kühlluft zu versorgen. Bei Schnee setzt sich dieser Schneefilter 16 zu, die Kühlluft kann dann nur noch über den Dachkanal incl. Lüftern zu den Komponenten gelangen. Dieser Dachkanal alleine kann den Luftbedarf bei Sommerlichen Temperaturen nicht gewährleisten.The snow filter 16 can be mounted on a ventilation apron in order to supply the downstream components (cooling air consumers) with cooling air even in winter. In the case of snow, this snow filter 16 sets in, and the cooling air can only reach the components via the roof duct, including fans. This roof channel alone can not guarantee the air requirement at summer temperatures.

Ggf. sind weitere erste Einlassgitter 9 mit Schneefiltern 16 ausgestattet, so dass weitere Komponenten mit hohem Kühlluftbedarf auch im Winterbetrieb zusätzliche Kühlluft erhalten können.Possibly. are more first inlet grille 9 equipped with snow filters 16, so that other components with high Cooling air required even in winter operation can receive additional cooling air.

Claims (4)

  1. Rail vehicle (1) having a cooling arrangement for components which are arranged in an underfloor region (2), such as a power supply block, a power converter, a transformer or a traction motor (4), which are either cooled directly or via an associated cooler, wherein the cooling arrangement has at least a first inlet opening for fresh air which is to be used as cooling air, which inlet opening is arranged in the underfloor region (2), and at least one fan (5) for conducting the cooling air in the direction of at least one of the components (4), and the cooling arrangement has a second inlet opening, connected fluidically to the fan (5), for fresh air which is to be used as cooling air, which second inlet opening is arranged above side aprons (8) of the rail vehicle (1) and is connected to the underfloor region (2) via an air duct (13),
    characterized in that
    the first inlet opening is equipped with a snow filter (16).
  2. Rail vehicle (1) according to Claim 1,
    characterized in that
    the snow filter (16) is arranged behind an inlet grille (9) of the first inlet opening.
  3. Rail vehicle (1) according to one of Claims 1 or 2,
    characterized in that
    further inlet openings are formed in the region of the side aprons (8) in such a way that they can be closed for winter operation, and the first inlet opening is assigned to a traction motor fan (5).
  4. Rail vehicle (1) according to one of Claims 1 to 3,
    characterized in that
    the snow filter (16) is constructed from one or more porous filter layers.
EP09781994A 2008-09-04 2009-08-19 Rail vehicle switchable between winter and summer operation Not-in-force EP2318251B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008045952A DE102008045952A1 (en) 2008-09-04 2008-09-04 Rail vehicle with switching between winter and summer operation
PCT/EP2009/060724 WO2010026049A1 (en) 2008-09-04 2009-08-19 Rail vehicle switchable between winter and summer operation

Publications (2)

Publication Number Publication Date
EP2318251A1 EP2318251A1 (en) 2011-05-11
EP2318251B1 true EP2318251B1 (en) 2012-02-08

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ID=41217459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09781994A Not-in-force EP2318251B1 (en) 2008-09-04 2009-08-19 Rail vehicle switchable between winter and summer operation

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EP (1) EP2318251B1 (en)
CN (1) CN102143874B (en)
AT (1) ATE544651T1 (en)
DE (1) DE102008045952A1 (en)
ES (1) ES2379693T3 (en)
PT (1) PT2318251E (en)
RU (1) RU2501685C2 (en)
WO (1) WO2010026049A1 (en)

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EP4406805A1 (en) * 2023-01-24 2024-07-31 Siemens Mobility GmbH Improved coolant supply

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DE102022207794A1 (en) 2022-07-28 2024-02-08 Siemens Mobility GmbH Rail vehicle
EP4406805A1 (en) * 2023-01-24 2024-07-31 Siemens Mobility GmbH Improved coolant supply

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Publication number Publication date
ATE544651T1 (en) 2012-02-15
DE102008045952A1 (en) 2010-03-25
CN102143874A (en) 2011-08-03
ES2379693T3 (en) 2012-04-30
EP2318251A1 (en) 2011-05-11
CN102143874B (en) 2013-10-16
RU2011112799A (en) 2012-10-10
WO2010026049A1 (en) 2010-03-11
PT2318251E (en) 2012-04-11
RU2501685C2 (en) 2013-12-20

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