EP3740407A1 - Underfloor device carrier for a rail vehicle - Google Patents

Abstract

The invention relates to an underfloor device carrier (1) for a rail vehicle (2), comprising a forced ventilation system having at least one supply-air suctioning point (3) and at least one exhaust-air outlet opening (4), an air-guiding device (5) being provided, which can be switched between at least two positions. In a first position of the air-guiding device (5), the exhaust air (6) flows out in a first outflow direction. In a second position of the air-guiding device (5), the exhaust air (6) flows out in a second outflow direction.

Description

 description

Underfloor equipment carrier for a rail vehicle.

Technical area

The invention relates to an underfloor equipment carrier for a rail vehicle.

State of the art

Underfloor equipment carriers, also called underfloor containers, are very often used in rail vehicles and serve to accommodate electrical equipment,

preferably of facilities with high energy requirements. They offer the advantage of being able to set up and test these electrical devices separately from the body of the rail vehicle and they are mounted under the vehicle body during the final assembly of the vehicle. Depending on the type of one

Underfloor container arranged electrical device creates a certain electrical power loss, which is typically dissipated by means of forced ventilation air cooling. In this case, ambient air is sucked in at a point of the underfloor equipment carrier via an air filter, passed inside the equipment carrier via heat-emitting surfaces and discharged elsewhere to the environment again. In

Depending on the device to be cooled, the discharged air can each have different high temperatures. An extreme case is underfloor devices with braking resistors, which can reach up to 700 degrees Celsius and cause a very hot exhaust air flow. Is this also without problems when driving on the open road, Thus, this exhaust air at stops, especially in tunnels can lead to problems. Urgent exhaust air from the platform gap in the door area represents a loss of comfort for the passengers and can in extreme cases increase

Cause injury. Also, the penetrating into the passenger compartment warm air may have due to the

Air conditioning in be cooled down again. The ventilation of the devices to be cooled during the stop in a station

It is not an acceptable option to turn off because braking resistors, for example, have the highest cooling demand at this time.

Presentation of the invention

The invention is therefore based on the object, a

Indicate underbody equipment carrier for a rail vehicle, which avoids the disadvantages of the prior art, while at any time of operation provides the maximum cooling capacity or cooling air flow.

The object is achieved by a Unterflurgeräteträger for a rail vehicle with the features of claim 1. Advantageous embodiments are the subject of the subordinate claims.

The basic idea of the invention according to a

Unterflurgeräteträger constructed for a rail vehicle, which forced ventilation with at least one

Zuluftansaugstelle and at least one Abluftauslaßöffnung includes, wherein an air guide is provided, which is switchable between at least two positions, wherein in a first position of the air guide, the exhaust air flows in a first outflow direction and in a second position of the air guiding device, the exhaust air flows out in a second outflow direction.

Thereby, the advantage can be achieved to be able to dissipate the exhaust air in a certain direction, so that it can be steered in the direction which is advantageous at the time.

According to the invention, an underfloor device carrier is equipped with an air cooling, wherein at least one

Zuluftansaugstelle ambient air is sucked, and a blowing out of the cooling air takes place either in a first or a second outflow direction. This is one

Provide louver, which causes the corresponding steering of the air flow. This louver may include, for example, flaps which are controlled to release or close certain paths for the cooling air.

The outflow directions are advantageously oriented so that they blow out the exhaust air in opposite directions. In built-in position of the

Device carrier, it is thereby possible to allow the exhaust air to flow transversely to the longitudinal direction of the rail vehicle, wherein at a stop the exhaust air is blown only at the platform opposite direction. Such a deterioration of the passenger comfort can be prevented by emerging from the platform gap hot air, which is essential in particular in tunnels.

The intake of the cooling air is typically either on both sides (on the long sides of a rail vehicle related) or from below, from the direction of the track bed. In The first case, the exhaust air blows down, in the second case to both sides.

These two typical embodiments are known

Underfloor implement carriers each have particularly advantageous characteristics of an air guiding device.

 Is the supply air intake at the bottom of the

Unterflurgeräteträgers provided and the purging thus takes place via two each laterally arranged outlet openings, it is advisable to provide flaps, which alternatively each one of the outlet openings close and thus dissipate the cooling air flow only through one of the outlet openings. At a stop at a platform is in each case the

closed platform-sided flap, when driving on a free route, both flaps are open and the exhaust air thus dissipate via both outlet openings.

In Unterflurgeräteträgern with lateral Zuluftansaugstellen and downwardly directed outlet opening is

recommended, the outflowing air with a

To provide the transverse component of the velocity, i. directed towards one side (relative to the rail vehicle). This can, for example

Air baffles are provided which are pivotally mounted in the air flow and thus allow the air flow leak directed.

Another embodiment provides to make the outlet opening so that it has two types of outlet channels, which each guide the exhaust air in one direction, and to close depending on the desired outlet direction in each case a type of outlet channels. In a further development of the invention, it is advantageous to set the louver while driving in such a position, which forms the lowest flow resistance for the cooling air and thus maximizes the cooling effect.

The control of the louver is preferably carried out automatically and by means of an electric drive. It is for this purpose, for example, to provide a control which is provided by on-board devices (e.g.

Vehicle control) information about which to choose

Bleed page received, which is required at the currently approached stop. This control comprises the required for driving the louver

Power electronics and optional means for detecting the operating state of the associated drives and the

Capture errors in these components. It is particularly advantageous to have a bidirectional data interface

provide, via which commands from the vehicle side

Devices to the controller and status

Error messages can be transmitted to the vehicle-mounted facilities.

A particular embodiment of the invention provides, the louver directly from a mechanically

Door drive or drive a gap bridging to operate. Since at a stop in the vast majority of cases only the doors of a vehicle side are opened, a door or gap bridging drive simultaneously with the door or the gap bridging and the

 Drive the louver of an underfloor device carrier.

It is particularly advantageous while driving a

Gap bridging is used as it acts before opening the door and after closing the door, so that the In any case, the louver is placed in the correct position before opening the door. The transmission of the driving force to the louver can thereby

for example, by means of a Bowden cable.

Other forms of variable Kühlluftausblasung a Unterflurgeräteträgers are, but with reduced

Efficiency and higher production costs, also feasible.

For example, you can have your own for each direction

Fans and associated air paths are provided to a respective Abluftauslaßöffnung, which does not require a variable louver, the

However, manufacturing costs increased.

 Another possibility provides to perform the cooling air fan reversible, so that the Zuluftansaugstelle and Abluftauslaßöffnung can change their function arbitrarily. However, this is not advantageous because conventional fans only in an air conveying direction a high

Have efficiency, in the opposite direction, this is usually extremely low. This would be solvable only by the use of elaborate fans with blade adjustment.

Brief description of the drawings

They show by way of example:

Fig.l Unterflurgeräteträger, blow down.

Fig.2 Underfloor equipment carrier, blow down, platform left.

 Fig.3 Underfloor equipment carrier, blow down, platform right.

Fig.4 Unterflurgeräteträger, blow-out laterally. Fig.5 Underfloor equipment girder, discharge on the side, platform on the left.

 Fig.5 Underfloor equipment support, side discharge, platform right.

 Fig.7 Unterflurgeräteträger, electrical block diagram. Fig.8 Unterflurgeräteträger, mechanically driven

Air guiding device.

EMBODIMENT OF THE INVENTION FIG. 1 shows an example and schematically a

 Underfloor device carrier with a blow down. A conventional underfloor implement carrier 1 is shown, which on the underside of a rail vehicle. 2

is arranged, which is located in a stop in a tunnel. The underfloor device support 1 has two laterally arranged Zuluftansaugstellen 3 through which each supply air 7 is sucked into the interior of the underfloor device support 1. The subsequently heated exhaust air 6 is at the bottom of Unterflurgeräteträgers 1 via a

Exhaust air outlet 4 blown out and distributed below the rail vehicle 2, wherein a portion of the exhaust air 6 in the space between the rail vehicle 2 and the

Tunnel wall flows and another part of the exhaust air 6 through the platform gap 8 in the direction of the platform.

2 shows an example and schematically a

Underground equipment support according to the invention with a blow down at a left-side platform. It is an identical situation as shown in Fig.l, but with an underfloor device support 1 according to the invention is arranged below the rail vehicle 2. This includes as well as the Unterflurgeräteträger according to the prior art, two laterally arranged Zuluftansaugstellen 3. The outlet of the exhaust air 6 via a Abluftauslaßöffnung 4 on the underside of the Unterflurgeräteträgers 1, wherein a

Air guiding device 5 is provided, via which the

Outlet direction of the exhaust air 6 can be predetermined. These

Air guide 5 may be in the form of a plurality of

Air baffle be realized, which can each take at least two positions in relation to the air flow and thus can direct it in certain directions. In the exemplary embodiment shown, the air baffles of the louver 5 are set so that the exhaust air 6 in the direction of the tunnel wall, ie opposite to the platform, flows and thus virtually no share of the exhaust air 6 passes through the platform gap in the direction of the platform. To move the air baffles of the louver 5, a drive is provided, for example, an electric motor, a

Stepper motor or an electromagnet. To simplify the schematic diagram of such a drive is not shown.

Fig. 3 shows by way of example and schematically a

Underground equipment support according to the invention with a blow down at a right-side platform. It is the embodiment of a Unterflurgeräteträgers 1 shown in Figure 2, wherein the rail vehicle 2 at a

Stop with a platform on the right side of the vehicle stops. The baffles of the louver 5 are set so that the exhaust air 6 left side to

Vehicle longitudinal axis is blown out and thus can not pass through the platform gap 8. When driving the rail vehicle, the direction of blowout is irrelevant, the air baffles of the louver 5 can therefore already be brought while driving in the position required for the next stop or remain until the next stop in the last position. Is provided, the baffles of

Air guiding device 5 with three possible positions

run, so the baffles of

Air guiding device 5 are brought into a neutral middle position. This can be particularly advantageous if in this neutral middle position the lowest

Flow resistance of the louver 5 occurs and thus the exhaust air 6 reaches the maximum volume flow while driving.

4 shows an example and schematically a

 Underfloor device carrier with a lateral blow-out. A conventional underfloor implement carrier 1 is shown, which on the underside of a rail vehicle. 2

is arranged, which is located in a stop in a tunnel. The underfloor device carrier 1 has a below-arranged Zuluftansaugstelle 3 through which supply air 7 is sucked into the interior of the underfloor device carrier 1. The subsequently heated exhaust air 6 is blown out on the sides of the underfloor device support 1 via two exhaust air outlet 4. In this case, a part of the exhaust air 6 flows into the

Gap between the rail vehicle 2 and the

Tunnel wall, other part of the exhaust air 6 is, however, blown immediately below the platform gap 8 in the direction of the platform, which is particularly disadvantageous.

5 shows an example and schematically a

Unterflurgeräteträger invention with a lateral Blow-out at a left-side platform. It is an identical situation as shown in Figure 4, wherein, however, an inventive Unterflurgeräteträger 1 is disposed below the rail vehicle 2. This includes as well as the Unterflurgeräteträger according to the prior art, two laterally arranged Abluftauslaßöffnungen 4. It is an air guide 5 is provided which comprises two flaps, wherein one flap is associated with an exhaust outlet 4 and is arranged so that they close the respective Abluftauslaßöffnung 4 can. The

Flaps of the louver 5 are preferably

independently in an open and a

closed position power assisted adjustable. As a result, the outlet direction of the exhaust air 6 can be predetermined, so that, as in the illustrated embodiment, the platform side air exhaust port 4 can be closed and the entire exhaust air 6 exits through the tunnel-side Abluftauslaßöffnung 4. To move the flaps of the louver 5, a drive is provided, such as an electric motor, a stepper motor or an electromagnet. to

Simplification of the schematic diagram of such a drive is not shown.

Fig. 6 shows an example and schematically a

Underground equipment support according to the invention with a lateral discharge at a platform on the right side. It is the embodiment shown in Figure 5, wherein during a stop at a right-hand platform the flaps of the louver 5 of the right side of the vehicle are closed, so that the exhaust air 6 is blown out at the tunnel-side Abluftauslaßöffnung 4. While driving, it is advisable to all the flaps of the louver 5 to open, since the best cooling effect for the components to be cooled in the underfloor equipment carrier 1 is achieved.

Fig. 7 shows, by way of example and schematically, the electrical block diagram of a device according to the invention

 Unterflurgeräteträgers 1. The Unterflurgeräteträger 1. comprises a control device 9, which for the operation of a

electric drive 12 is set up. This drive 12 acts on a louver 5, so they have their means for controlling the air flow (flaps or

Air baffles) in the required position is able to ask. It is a functional monitor of the

Air guiding device 5 is provided, in which a

Position feedback signal 13 is passed from the louver 5 to the controller 9. Thereby, a detection of a malfunction of the drive 12 or the

Air guiding device 5 are made. The

 Control device 9 is connected to a vehicle-side controller 10 by means of a data interface, so that data 11 can be transmitted in both directions between the control device 9 and the vehicle-side controller 10. Commands can be sent to the

Control device 9 and feedback to the vehicle-mounted controller 10 are transmitted.

Fig. 8 shows by way of example and schematically a

Underfloor device carrier, with a mechanically driven louver. It's a cut through one

Unterflurgeräteträger 1 shown, which at the

Bottom of a rail vehicle 2 is arranged. In this case, the rail vehicle 2 is equipped with a gap bridging in the form of a sliding step 14, which is actuated by means of a Schiebetrittantriebs 15. The Underfloor device support 1 is constructed according to the principle shown in FIGS. 5 and 6, according to which alternatively one of two exhaust air outlet openings 4 can be closed. The

Air guide 5 is therefore equipped with flaps. The Schiebetrittantrieb 15 acts on the movably mounted foot plate and a power transmission 16 also on the louver 5 and thus moves the flaps. This power transmission 16, for example, as a Bowden cable, as a hydraulic power transmission, or as

Rod drive are performed. In Fig. 8 is only one

Half of the lower equipment carrier 1 shown, the other half is constructed in mirror image to the first half.

The further preferred type of Unterflurgeräteträgers 1 with arranged in the exhaust air flow baffles can also be used in the principle shown.

List of terms

1 underfloor equipment carrier

 2 rail vehicle

 3 supply air intake parts

 4 exhaust outlet

 5 air guide

 6 exhaust air

 7 supply air

 8 platform gap

 9 control device

 10 Vehicle-side control

 11 dates

 12 drive

 13 position feedback signal

 14 sliding step

 15 sliding door drive

 16 power transmission

Claims

claims  An underfloor implement carrier (1) for a rail vehicle (2), comprising forced ventilation with at least one supply air intake point (3) and at least one  Exhaust air outlet opening (4),  characterized in that  an air guiding device (5) is provided, which is switchable between at least two positions, wherein in a first position of the air guiding device (5) the exhaust air (6) flows out in a first outflow direction and in a second position the  Air guiding device (5) the exhaust air (6) flows in a second outflow direction. 2. Underfloor equipment carrier (1) for a rail vehicle (2) according to claim 1,  characterized in that the first outflow direction and the second outflow direction each other  are oriented opposite. 3. underfloor equipment carrier (1) for a rail vehicle (2) according to claim 1 or 2  characterized in that in installation position of the  Unterflurgeräteträgers (1) the first outflow direction and the second outflow each transverse to  Longitudinal direction of a rail vehicle are aligned. 4. Underfloor equipment carrier (1) for a rail vehicle (2) according to one of claims 1 to 3, characterized in that the louver (5) comprises two flaps, which in each case an associated depending on the respective outflow direction Release or close the exhaust outlet (4). 5. Underfloor equipment carrier (1) for a rail vehicle (2) according to one of claims 1 to 3,  characterized in that the louver (5) comprises at least one air guide plate, which in dependence on the respective required  Outflow direction is set in a certain position. 6. underfloor equipment carrier (1) for a rail vehicle (2) according to one of claims 1 to 5,  characterized in that an electrical drive (12) for actuating the air guiding device (5) is provided. 7. Underfloor equipment carrier (1) for a rail vehicle (2) according to claim 6,  characterized in that the underfloor device carrier (1) comprises a control device (9) which is arranged to transmit data (11) with an outside of the underfloor device carrier (1)  Vehicle-side control (10) is arranged and which comprises means for controlling the drive (12). 8. Underfloor equipment carrier (1) for a rail vehicle (2) according to one of claims 1 to 5,  characterized in that the actuation of  Air guiding device (5) by a guided from the outside in the Unterflurgeräteträger (1) power transmission (16).