Classifications

• • 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 known for example from DE 10 2006 032 335 Al.
• 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.
• Cooling air supply from the second inlet opening would have to be gripped back. This has the consequence that very large air ducts and support fans would be provided with increased power reserves.
• 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.
• Figure 1 is a side view, partially in section, one
• Railcar as an example of a rail vehicle
• Figure 2 is a perspective view of a portion of a floor pan of the rail vehicle.
• FIG. 1 The representation of a railcar 1 in Figure 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.
• a bottom of the multiple unit 1 is fluidly sealed by means of a bottom tray 6, so that above the
• Floor pan 6 cooling air flows can be performed.
• 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 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
• the traction motor fans 5 draw air for cooling 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. It can be provided further air channels, which are arranged one behind the other in the vehicle longitudinal direction and
• 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.
• the cooling system 10 which may comprise a plurality of fans.
• 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.
• FIG. 2 now shows a portion of the floor pan 6 of the rail vehicle, seen from an inner side. Shown are two juxtaposed inlet openings, of which the right one in the figure 2 belongs to a first inlet grille 9, flows through the fresh air for cooling 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 is used for a
• 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.
• this snow filter is 16 the cooling air can then only about the roof channel incl. Fans get to the components. 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.

Landscapes

• 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)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=41217459

Family Applications (1)

Country Status (8)

Cited By (6)

Families Citing this family (4)

Citations (4)

Family Cites Families (5)

• 2008
  • 2008-09-04 DE DE102008045952A patent/DE102008045952A1/de not_active Withdrawn
• 2009
  • 2009-08-19 RU RU2011112799/11A patent/RU2501685C2/ru active
  • 2009-08-19 ES ES09781994T patent/ES2379693T3/es active Active
  • 2009-08-19 EP EP09781994A patent/EP2318251B1/de not_active Not-in-force
  • 2009-08-19 CN CN200980134587.2A patent/CN102143874B/zh not_active Expired - Fee Related
  • 2009-08-19 PT PT09781994T patent/PT2318251E/pt unknown
  • 2009-08-19 AT AT09781994T patent/ATE544651T1/de active
  • 2009-08-19 WO PCT/EP2009/060724 patent/WO2010026049A1/de active Application Filing

Patent Citations (4)

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