CN201580383U

CN201580383U - Unpowered ventilation cooling structure of vehicle body bottom frame

Info

Publication number: CN201580383U
Application number: CN2009203124941U
Authority: CN
Inventors: 王志春; 王红; 单宝珠; 孙孝博
Original assignee: Bombardier Sifang Qingdao Transportation Ltd
Current assignee: Bombardier Sifang Qingdao Transportation Ltd
Priority date: 2009-10-14
Filing date: 2009-10-14
Publication date: 2010-09-15
Anticipated expiration: 2019-10-14

Abstract

The utility model relates to an unpowered ventilation cooling structure of a vehicle body bottom frame, which utilizes an air negative pressure area formed during the high speed running of a track vehicle at the bottom part of a vehicle body, so as to carry out the natural ventilation cooling treatment of under-vehicle equipment in an equipment chamber under an unpowered state, thereby not only improving the aerodynamic performance and reducing the air resistance during the running of the vehicle, but also timely cooling the under-vehicle equipment and prolonging the service life of the equipment. The unpowered ventilation cooling structure of the vehicle body bottom frame comprises a bottom frame steel structure below the vehicle body; a skirt plate and an end plate are connected below the bottom frame steel structure; the bottoms of the skirt plate and the end plate are connected with a bottom cover plate; the bottom frame steel structure, the skirt plate, the bottom frame plate and the end plate form the sealed equipment chamber for receiving the under-vehicle equipment; and the skirt plate is provided with a plurality of air inlet holes, and the bottom cover plate is provided with a plurality of air outlet holes. When the track vehicle is in high speed running, the partial area of the entire vehicle body bottom frame correspondingly generates a larger air negative pressure area, and negative pressure air outside the vehicle enters into the internal part of the equipment chamber to cool the under-vehicle equipment and then to be discharged from the air outlet holes on the bottom cover plate.

Description

The car body underframe is unpowered ventilation cooling structure

Technical field

The utility model is a kind of unpowered ventilation cooling structure of car body underframe that is applied to guideway vehicle, and adopting unpowered negative pressure air specifically is that equipment carries out cooling processing under the car, belongs to mechanical manufacturing field.

Background technology

Guideway vehicles such as the domestic urban light rail that has put into effect, subway, motor train unit are provided with a plurality of equipment below the car body underframe at present, and equipment can form a large amount of heats under these cars in the vehicle operating process.

The existing equipment compartment that holds equipment under the car is closed structure normally, be difficult in time outwards distribute after equipment under the car produces heat, thereby it is very fast to cause that equipment heats up, and is unfavorable for the normal operation of equipment self under the car, causes service life of equipment to shorten.

If adopt convection flow fan to carry out the forced cooling mode, not only can increase the car body deadweight, and formed operating noise also can be unfavorable for improving running velocity and travelling comfort to the guest room internal delivery.

The utility model content

The unpowered ventilation cooling structure of car body underframe described in the utility model, its design goal is to address the above problem and utilizes in the guideway vehicle high-speed cruising process air negative pressure district that forms in the car body bottom, air is incorporated in the apparatus for sealing cabin, under unpowered state, carry out the natural ventilation cooling processing to equipment under the car in the equipment compartment, thereby aerodynamic performance, minimizing windage in the vehicle operating process had both been improved, can improve service life of equipment in time for equipment under the car cools off again.

For realizing above-mentioned design goal, the car body underframe is unpowered, and the ventilation cooling structure mainly includes:

The steel underframe of car body below is connected with skirtboard and the end plate that is arranged on two side ends below steel underframe, be connected with bottom plate at skirtboard and end plate bottom, and steel underframe and skirtboard, end plate, bottom plate form the apparatus for sealing cabin that holds equipment under the car.

Be that with the difference of prior art skirtboard is provided with several fresh air inlets, bottom plate is provided with several exhaust vents.

As above-mentioned basic scheme, when the guideway vehicle high-speed cruising, below whole locomotive body, can correspondingly produce big air negative pressure district.At this moment,, make the outer negative pressure air of car can enter into inside, chassis apparatus cabin, the exhaust vent discharge equipment under the car is cooled off after from the bottom plate by the fresh air inlet on the skirtboard.

Owing to form directed air flows in equipment compartment, thereby the work calories that equipment surface forms under the car is dispersed into outside the car, and this type of is unpowered, and the ventilation type of cooling need not to dispose any forced convection device, and is comparatively economical and practical.

The rail zone that guideway vehicle moved is the more serious zone of contamination by dust normally, for preventing impurity such as koniology equipment under the car is caused adverse effect, can take following innovative approach:

Fresh air inlet is provided with the labyrinth type grid, in the installed inside of labyrinth type grid filtering net detachable, capable of washing is arranged.

Can stop by the dust that particle is bigger by the labyrinth type grid, the less dust of particle then can be filtered net absorption, comparatively cleans so enter into equipment compartment in-to-in air.

More preferred improvement project is to be provided with the underframe dividing plate under each car between the equipment.

Skirtboard, end plate, bottom plate, underframe dividing plate and steel underframe are for equipment under each car has been set up separate, an apparatus for sealing cabin.Under unpowered ventilation state, equipment is separately by the cooling of ventilating under the equipment compartment in-to-in car, and the fire that causes even electrical short-circuit takes place also can play corresponding buffer action.

In sum, the advantage that has of the unpowered ventilation cooling structure of the utility model car body underframe is:

Carrying out natural ventilation cooling, the normal operation of equipment under the maintenance cart, and the service life that can improve equipment to equipment under the car under the unpowered state.

On the basis of reducing windage, can improve the aerodynamic performance in the vehicle operating process, help improving the running velocity of guideway vehicle.

Need not to dispose any mandatory convection device, both economical and practical, also can reduce the car body deadweight effectively.

Description of drawings

Now in conjunction with the accompanying drawings the utility model is described further.

Fig. 1 is the structural representation of described car body underframe;

Fig. 2 is the schematic side view of Fig. 1;

Fig. 3 is the schematic top plan view of Fig. 1;

Fig. 4 is the skirtboard scheme drawing;

As shown in Figures 1 to 4, skirtboard 1, bottom plate 2, underframe dividing plate 3, equipment 4 under the car, steel underframe 5, fresh air inlet 6, end plate 7.

The specific embodiment

Embodiment 1, as shown in Figures 1 to 4, and the unpowered ventilation cooling structure of described car body underframe, include steel underframe 5, be connected with skirtboard 1 and end plate 7 around below steel underframe 5, skirtboard 1 and end plate 7 bottoms are connected with bottom plate 2, are being provided with underframe dividing plate 3 under each car between the equipment 4.

Steel underframe 5 and skirtboard 1, end plate 7, bottom plate 2, underframe dividing plate 3 have formed separate, an apparatus for sealing cabin for equipment under each car.

Skirtboard 1 is provided with several fresh air inlets 6, and fresh air inlet 6 is provided with the labyrinth type grid, in the installed inside of labyrinth type grid filtering net detachable, capable of washing is arranged.

Bottom plate 2 is provided with several exhaust vents.

When the guideway vehicle high-speed cruising, below whole locomotive body, can correspondingly produce big air negative pressure district.At this moment,, make the outer negative pressure air of car can enter into inside, chassis apparatus cabin, the exhaust vent discharge equipment under the car is cooled off after from the bottom plate 2 by the fresh air inlet on the skirtboard 16.

Owing to form directed air flows in equipment compartment, thereby the work calories that equipment surface forms under the car is dispersed into outside the car, promptly forms the unpowered ventilation type of cooling described in the utility model.

Claims

1. unpowered ventilation cooling structure of car body underframe, include steel underframe (5), be connected with skirtboard (1) and end plate (7) in steel underframe (5) below, skirtboard (1) and end plate (7) bottom are connected with bottom plate (2), steel underframe (5) and skirtboard (1), bottom plate (2), end plate (7) form the apparatus for sealing cabin that holds equipment under the car (4), it is characterized in that:

Skirtboard (1) is provided with several fresh air inlets (6), and bottom plate (2) is provided with several exhaust vents.

2. the unpowered ventilation cooling structure of car body underframe according to claim 1 is characterized in that: fresh air inlet (6) is provided with the labyrinth type grid, in the installed inside of labyrinth type grid filtering net is arranged.

3. the unpowered ventilation cooling structure of car body underframe according to claim 1 and 2 is characterized in that: be provided with underframe dividing plate (3) under each car between the equipment (4).