Component cooling device, in particular for a railroad vehicle

1. A cooling device for cooling a component, designed to equip a vehicle, comprising:

a case, designed to be arranged on a roof of the vehicle, said case comprising two side walls and one upper wall together delimiting a housing for the component,

the housing forming an air guiding duct in which the component is housed, said air guiding duct extending between a side air inlet opening arranged in one of the side walls and an upper air outlet opening, arranged in the upper wall,

the side air inlet opening having a symmetrical shape relative to a respective median plane perpendicular to the side wall and the upper wall, and

the upper air outlet opening having a symmetrical shape relative to a median plane perpendicular to the upper wall and the side walls, wherein the upper wall comprises a front deflector protruding up from the upper wall along a front edge of the upper opening perpendicular to the side walls and a rear deflector protruding up from the upper wall along a rear edge of the upper opening perpendicular to the sidewalls, such that the cooling device can operate in both a front direction of travel and a rear direction of travel,

the air guiding duct comprising an upstream part extending the side air inlet opening toward the component, the upstream part being delimited by substantially planar upper and lower surfaces, and by curved front and rear surfaces converging toward each other from the side air inlet opening toward the component, such that an air stream flowing into the housing passes through the component as it passes from the air inlet opening to the air outlet opening,

and wherein the cooling device is devoid of any fan.

2. The cooling device according to claim 1 , wherein each side air inlet opening is arranged across from the corresponding component.

3. The cooling device according to claim 1 , wherein each upper air outlet opening is arranged across from the corresponding component.

4. The cooling device according to claim 1 , wherein for each component, the case has two side air inlet openings, each arranged on a respective side wall.

5. The cooling device according to claim 1 , wherein each upper air outlet opening has a symmetrical shape relative to a respective median plane perpendicular to the upper wall and the side walls.

6. The cooling device according to claim 1 , wherein for each upper air outlet opening, the upper wall includes at least one deflector element, protruding up from the upper wall, and extending along a front or rear edge of the upper air outlet opening, perpendicular to the side walls.

7. The cooling device according to claim 6 , wherein for each upper air outlet opening, the upper wall includes two deflector elements, respectively extending along the front edge and the rear edge of the upper air outlet opening.

8. A railroad vehicle, comprising a roof, comprising a cooling device with at least one component arranged on said roof, wherein:

the cooling device comprises a case, arranged on said roof, said case comprising two side walls and one upper wall together delimiting a housing for each component,

each housing forms an air guiding duct in which the corresponding component is housed, said air guiding duct extending between at least one side air inlet opening arranged in one of the side walls and one upper air outlet opening, arranged in the upper wall,

each side air inlet opening has a symmetrical shape relative to the respective median plane perpendicular to the side wall and the upper wall, and

each upper air outlet opening having a symmetrical shape relative to a median plane perpendicular to the upper wall and the side walls, wherein the upper wall comprises a front deflector protruding up from the upper wall along a front edge of the upper opening perpendicular to the side walls and a rear deflector protruding up from the upper wall along a rear edge of the upper opening perpendicular to the sidewalls, such that the cooling device can operate in both a front direction of travel and a rear direction of travel,

each air guiding duct includes, for each side air inlet opening, an upstream part extending that side air inlet opening toward the corresponding component, that upstream part being delimited by substantially planar upper and lower surfaces, and by curved front and rear surfaces converging toward each other from the side air inlet opening toward the component, such that an air stream flowing into the housing passes through the component as it passes from the air inlet opening to the air outlet opening,

and wherein the cooling device is devoid of any fan.

9. The railroad vehicle according to claim 8 , wherein each side air inlet opening is arranged across from the corresponding component.

10. The railroad vehicle according to claim 8 , wherein each upper air outlet opening is arranged across from the corresponding component.

11. The railroad vehicle according to claim 8 , wherein for each component, the case has two side air inlet openings, each arranged on a respective side wall.

12. The railroad vehicle according to claim 8 , wherein each upper air outlet opening has a symmetrical shape relative to a respective median plane perpendicular to the upper wall and the side walls.

13. The railroad vehicle according to claim 8 , wherein for each upper air outlet opening, the upper wall includes at least one deflector element, protruding up from the upper wall, and extending along a front or rear edge of the upper air outlet opening, perpendicular to the side walls.

14. The railroad vehicle according to claim 13 , wherein for each upper air outlet opening, the upper wall includes two deflector elements, respectively extending along the front edge and the rear edge of the upper air outlet opening.