DE202018104361U1 - Closing device with flap-shaped components for intake or outlet openings of the process air of air conditioning and ventilation devices for rail vehicles - Google Patents

Abstract

Closing device for intake or outlet openings of the process air of air conditioning and ventilation devices for rail vehicles, wherein the air conditioning or ventilation device comprises a channel for guiding the process air, which is equipped with a suction or discharge opening and with a closing device, wherein by means of the closing device the free flow cross-section of the suction or discharge opening is variable, wherein the closing device comprises flap-shaped components and a base body which consists of a flat cover plate with a recess and arranged on the underside of the cover plate sealing and stiffening frame, wherein the free cross section of the recess is completely closed with a single flap, wherein the flap is supported in the region of the two outer end faces of the recess on the base body by the flap pivotally guided in several bearings in the longitudinal direction of the recess and un d is connected to a lifting device for adjusting the angular position and wherein the base body can be supported and mounted on an opening on the housing of the associated air conditioning or ventilation device or on an opening on a section adjacent to the air conditioning or ventilation device of the rail vehicle, characterized
in that a first service cover (10) is arranged in the recess (5) of the cover plate from the base body (4) and that a second service cover (11) is arranged in the flap (6), wherein the first service cover (10) acts as a lattice-shaped component is configured and wherein the first service cover (10) and the second service cover (11) can be brought into operative connection with each other.

Description

The invention relates to a closing device for intake or outlet openings of the process air of air conditioning and ventilation devices for rail vehicles, wherein the air conditioning or ventilation device comprises a channel for guiding the process air, which is equipped with a suction or discharge opening and with a closing device, wherein by means of the closing device, the free flow cross-section of the suction or discharge opening is variable, wherein the closing device comprises flap-shaped components and a base body, which consists of a flat cover plate with a recess and arranged on the underside of the cover plate sealing and stiffening frame, wherein the free cross-section of the recess is completely closed with a single flap, wherein the flap is supported respectively in the region of the two outer end faces of the recess on the base body by the flap pivotally mounted in several bearings in Längsrichtun g out of the recess and connected to a lifting device for adjusting the angular position and wherein the body can be supported and mounted on an opening on the housing of the associated air conditioning or ventilation unit or on an opening on a section adjacent to the air conditioning or ventilation unit of the rail vehicle.

Passenger rail vehicles are equipped with passenger compartment air conditioning devices, these devices, in addition to numerous other components, also having a process air duct with an inlet opening (suction) and an outlet opening (blowing out). The coolant used is preferably the ambient air available outside the vehicle, which is conveyed through the duct with a fan. This process air is accelerated during the movement, resulting in a loss of momentum for the rail vehicle. The loss of momentum depends on the speed and increases with increasing speed.

In certain driving conditions, it is not necessary that ambient air flows into the channel for the process air or flows out. This is true, for example, in situations where the cooling system is not in operation or cooling power is not needed. If ambient air still flows in such situations, air flows inevitably occur which increase the air resistance of the rail vehicle. This effect is also dependent on the speed.

A reduced driving performance due to loss of momentum and air resistance can be compensated in principle by the traction power of the rail vehicle is increased. However, this is disadvantageous in terms of energy because energy consumption and operating costs increase.

Alternatively, it is possible that the intake or exhaust opening is assigned to the channel for the process air, a closing device with which the opening cross section can be changed depending on the current cooling requirements while driving.

So describes DE 196 46 123 A1 An air conditioning system for vehicles with air ducts, which can be opened or closed with hinged flaps or slats in various ways.

DE 28 31 810 A1 relates to an air conditioning or air heating system for rail vehicles with an air supply duct, at the end portions each pivotable flaps are arranged. Each flap is independent of other flaps controlled so that they allow in the two extreme positions pure fresh air mode or total recirculation mode with fully closed flaps.

Subject of GB 637 699 A is a heating and ventilation device for railway cars, in which the channels for guiding fresh air or return air are controlled by thermostatically operated pivoting flaps in position.

Out DE 29 34 501 A1 a device for the air conditioning of rail vehicles for passenger transport with a unit is known, which is located under the roof of the vehicle. This unit has suction openings for outside and inside air and a control device for an operable via an actuator outside air damper. In this case, the actuator is designed as a piston drive, wherein the piston against a spring force on one side with compressed air can be acted upon. With a strong drop in temperature of the outside air, the piston drive is vented and thereby the outside air flaps are closed.

DE 10 2009 025 299 A1 describes a rail vehicle in which the passenger compartment has two longitudinally adjacent air conditioning areas, which are in operative connection with separate supply air ducts. At the outer openings of Zuluftkanäle each pivotable flaps are arranged. Depending on the environmental conditions (eg sun on one side of the car and shadow on the other side of the car) these flaps are opened or closed more or less, whereby a complete closing is provided.

Out DE 33 11 455 A1 a closure device with a base body is known, which consists of a flat cover plate with a recess and arranged on the underside of the cover plate sealing and stiffening frame. The free cross section of the recess can be closed completely with a plurality of flaps or else with only a single flap, wherein the flap is supported in the region of the two outer end faces of the recess on the base body. The flap is pivotally guided in a bearing and connected to a lifting device for adjusting the angular position. The main body can be supported and mounted on an opening on the housing of the associated air conditioning or ventilation device or on an opening on a section of a rail vehicle adjacent to the air conditioning or ventilation device.

Despite the large number of already known closing systems for intake or outlet openings of the process air of air conditioning and ventilation devices on rail vehicles, there is still a need for development. This applies primarily to applications for high-speed trains, where due to the very high speed of a particularly fast and precise operation of the locking systems is necessary, which inevitably requires a professional maintenance of the relevant assemblies.

The object of the invention is to provide a closing device for suction or exhaust openings of the process air of air conditioning and ventilation devices for rail vehicles, which is particularly suitable for high-speed trains and has flap-shaped components. In this case, the penetration of foreign bodies in the intake or exhaust ports should be largely prevented and at the same time a good accessibility to assemblies are created that require maintenance.

This object is achieved by a first service cover is arranged in the recess of the cover plate from the base body and by a second service cover is disposed in the flap, wherein the first service cover is designed as a lattice-shaped component and wherein the first service cover and the second service cover with each other in Active compound can be brought.

1. a) Kühlbetrieb Klimagerät - Klappe offen / typisch für Betrieb im Sommer
2. b) Kein Kühlbetrieb Klimagerät - Klappe geschlossen / typisch für Betrieb im Winter
3. c) Abstellphase Schienenfahrzeug - Klappe geschlossen / Betrieb im Sommer und Winter

The application of the locking device is relevant for the following operating states:

1. a) Cooling air conditioner - flap open / typical for summer operation
2. b) No cooling operation Air conditioner - flap closed / typical for winter operation
3. c) Parking phase rail vehicle - flap closed / operation in summer and winter

This locking device is particularly advantageous for high-speed trains. Because with the closing function is optimized in driving conditions where no supply or removal of process air is necessary, the opening area on the outer contour of the rail vehicle. As a result, the aerodynamic drag is reduced and consequently traction energy is saved. Preferably, the device is assigned directly to the air conditioning or ventilation system, in a particularly preferred variant as a component of a mounted on the vehicle roof air conditioning. Likewise, an arrangement is partially integrated in the roof or as underfloor device possible. Regardless of the specific embodiment, penetration of foreign bodies into the intake or exhaust openings is largely prevented, and at the same time, good accessibility to locking devices and system components installed in the interior is ensured. Consequently, for example, maintenance work on the pneumatic valve of the flap or cleaning work on the heat exchanger of the air conditioning and ventilation unit with a small disassembly and assembly and time can be performed.

• 1 den grundsätzlichen Aufbau der Schließeinrichtung in perspektivischer Ansicht
• 2 eine Detailansicht der Schließeinrichtung mit Blick perspektivisch von der Innenseite
• 3 eine Detailansicht der Schließeinrichtung in Seitenansicht
• 4 eine perspektivische Ansicht auf die Schließeinrichtung nach Montage in eine auf dem Fahrzeugdach angeordnete Klimaanlage

An exemplary embodiment will be explained in more detail below with reference to the drawing. Show it:

• 1 the basic structure of the locking device in a perspective view
• 2 a detailed view of the locking device with a perspective view from the inside
• 3 a detailed view of the locking device in side view
• 4 a perspective view of the locking device after installation in an arranged on the vehicle roof air conditioning

In the drawing is a locking device 1 for the process air openings of air conditioning and ventilation devices 2 shown for rail vehicles. The air conditioning or ventilation unit 2 has a channel for guiding the process air, with an intake or exhaust opening 3 and with a locking device 1 Is provided. By means of the locking device 1 can the flow cross-section of the suction or discharge opening 3 be changed, the locking device 1 is designed as an assembly with flap-shaped components.

The locking device 1 has a basic body 4 on, made of a flat cover plate with a recess 5 and arranged on the underside of the cover plate sealing and stiffening frame consists. This basic body 4 is on an opening on the housing of the associated air conditioning or ventilation unit 2 or on an opening on an air conditioning or ventilation unit 2 supported adjacent section of the rail vehicle and mounted. This compact unit can be manufactured and assembled separately, so that the retrofitting of rail vehicles with locking devices 1 is possible in a simple manner.

1 shows the locking device 1 by way of example as a component of an air conditioning system to be mounted on the roof of a rail vehicle 2 , from here the case back 21 and a heat exchanger / condenser 22 are shown. Out 4 is a view of the complete air conditioning and ventilation unit 2 with two locking devices mounted on the vehicle's longitudinal sides 1 seen. The main body 4 has on its in installation position outer side surface, ie on the side facing the outer contour of the rail vehicle side on a convex outer contour, which is congruent to the outer contour of the associated air conditioning or ventilation device 2 or to the, the air conditioning or ventilation unit 2 adjacent section of the rail vehicle. Thus, the air resistance is not unnecessarily impaired. The main body 4 has at the side facing the outer contour of the rail vehicle side also has a recess 5 on. The open cross section of this recess 5 can completely with a single flap 6 be closed.

The flap 6 is - see 2 - In each case in the region of the two outer end faces of the recess 5 supported on the body. Here's the flap 6 pivotable in several bearings 7 in the longitudinal direction of the recess 5 guided and with a lifting device 8th connected to adjust their angular position. The lifting device 8th is at the lower position in the installation position of the body 4 fixed in position and can be configured as a pneumatic drive or as an electric drive. The arrangement and functional operative connection of flap 6 and lifting device is made in particular 3 seen. In the recess 5 adjacent surface portions of the body 4 are several stops 9 as a path limitation and a (in 1 to 4 not shown) sealing frame as a seal for the flap 6 arranged. Furthermore, the main body 4 also at the installation position lower section stops 9 as a travel limit for the flap 6 on.

The essential aspect of this locking device is that in the recess 5 of the cover plate from the main body 4 a first service cover 10 is arranged and that in the flap 6 a second service cover 11 is arranged. Here is the first service cover 10 configured as a grid-shaped component that can be completely disassembled for service purposes. This first service cover protects in the assembly and thus functional state 10 the inflow cross section of the intake or exhaust opening 3 from foreign bodies (eg birds) and reduces air resistance. The first service cover 10 and the second service cover 11 can be brought into operative connection with each other. As a result, service openings for maintenance work on the locking device with little effort 1 available. Consequently serve the service cover 10 and 11 also the quick access to built-in components of the air conditioning or ventilation unit. Thus, the complete locking device including the screw connections as well as the compressed air and power supply does not have to be dismantled at every service. In addition, for example, a cleaning of the heat exchanger (condenser) done from the outside with cleaning lance or vacuum cleaner.

In the drawing, only a position for better understanding, in which the flap 6 a little distance to the inside of the first service cover 10 Has. In fact, the suction or exhaust opening 3 either open or closed. When driving the rail vehicle, these intake or exhaust openings 3 the process air by means of the closing device 1 open or closed. This is the flap 6 by means of the lifting device 8th changed in their angular position. For detecting the position positions "OPEN" or "CLOSED" of the flap 6 indicates the basic body 4 in each case a corresponding receptacle in the upper and lower areas.

LIST OF REFERENCE NUMBERS

1

closing device

2

Air conditioning or ventilation unit

21

Caseback air conditioning

22

Heat exchanger air conditioning

3

Intake or discharge opening

4

body

5

recess

6

flap

7

Bearing for flap

8th

lifting device

9

Stop / limit

10

first service cover (on the main body)

11

second service cover (on flap)

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 19646123 A1 [0006]
• DE 2831810 A1 [0007]
• GB 637699 A [0008]
• DE 2934501 A1 [0009]
• DE 102009025299 A1 [0010]
• DE 3311455 A1 [0011]

Claims (1)

Closing device for intake or outlet openings of the process air of air conditioning and ventilation devices for rail vehicles, wherein the air conditioning or ventilation device comprises a channel for guiding the process air, which is equipped with a suction or discharge opening and with a closing device, wherein by means of the closing device the free flow cross-section of the suction or discharge opening is variable, wherein the closing device comprises flap-shaped components and a base body which consists of a flat cover plate with a recess and arranged on the underside of the cover plate sealing and stiffening frame, wherein the free cross section of the recess is completely closed with a single flap, wherein the flap is supported in the region of the two outer end faces of the recess on the base body by the flap pivotally guided in several bearings in the longitudinal direction of the recess and un d is connected to a lifting device for adjusting the angular position and wherein the main body can be supported and mounted on an opening on the housing of the associated air conditioning or ventilation unit or on an opening on a section adjacent to the air conditioning or ventilation unit of the rail vehicle, characterized in that the recess (5) of the cover plate from the base body (4) a first service cover (10) is arranged and in the flap (6) a second service cover (11) is arranged, wherein the first service cover (10) is designed as a lattice-shaped component and wherein the first service cover (10) and the second service cover (11) are operably engageable with each other.

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