Rail transit vehicle air conditioner air duct and rail train

Abstract

The utility model discloses a rail transit vehicle air-conditioning air duct and a rail train, which comprise a vehicle body top cover, a ceiling is arranged below the vehicle body top cover, and static pressure cavities extending along the length direction of the vehicle body top cover and the ceiling are arranged on the two sides of the vehicle body top cover and the ceiling; end sealing plates are arranged at the two ends of the car body top cover and the two ends of the ceiling. A relatively closed space defined by the vehicle body top cover, the ceiling, the end sealing plate and the two static pressure cavities is used as an air supply duct of the air conditioning unit; the side, facing the air supply duct, of the static pressure cavity communicates with the air supply duct. Sealing pieces are arranged between the static pressure cavity and the car body top cover and between the static pressure cavity and the ceiling. The weight and the cost of the air duct can be effectively reduced, the temperature uniformity of the passenger room is guaranteed, meanwhile, a low-noise environment is provided for the passenger room, and the riding comfort of passengers in the passenger room is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of rail transit vehicle air conditioning air duct and rail train, belong to the ventilation equipment technical field of rail transit vehicle. BACKGROUND

[0002] Air duct as a main component of rail vehicle, the passenger's ride comfort in passenger room is affected, the air supply uniformity of air duct and noise processing situation are related to the quality and performance of whole rail vehicle.The independent integrated duct structure is generally used in rail transit vehicle.With the increasing demand of vehicle lightening, weight reduction becomes the problem that designers need to consider in design, how to maintain the air supply uniformity of passenger room and noise in weight reduction.

[0003] Chinese invention patent CN104554309B discloses a kind of rail vehicle top air supply structure and rail vehicle, it includes the both sides of the middle roof fixed installation light strip, the light strip upper fixed installation hanging beam, the middle roof, light strip and hanging beam whole are U-shaped structure and hang in car roof steel structure, the relatively closed space surrounded by the middle roof, light strip, hanging beam and car roof steel structure is used as the air supply duct of air conditioning unit, and is communicated with the air supply port of air conditioning unit;In the side of the closed space and / or the middle roof is provided with the indoor air supply port for air supply to passenger room, the outside of the hanging beam is fixed with side air supply plate, the indoor air supply port for air supply to passenger room is opened in the side air supply plate;The lampshade of the light strip is arc transition shape of acute angle, the middle roof, the lampshade of both sides light strip and side air supply plate form the whole U-shaped continuous arc surface of acute angle arc transition;But this structure connection mode is complex and still relatively heavy, there is the problem of inconvenient maintenance. UTILITARY MODEL CONTENT

[0004] The utility model aims at the above problems, provide a kind of rail transit vehicle air conditioning air duct of large amplitude reduction air duct itself weight and simple structure and the rail train with the above air conditioning air duct.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] An air conditioning duct for a rail transit vehicle includes a car body roof, a ceiling below the car body roof, and static pressure chambers extending along the length of the car body roof and the ceiling on both sides in the transverse direction of the vehicle. End sealing plates are provided at both ends of the car body roof and the ceiling. The car body roof, the ceiling, the end sealing plates, and the two static pressure chambers form a relatively enclosed space as an air supply duct for an air conditioning unit. The side of the static pressure chamber facing the air supply duct is connected to the air supply duct. Sealing elements are provided between the static pressure chamber and the car body roof, and between the static pressure chamber and the ceiling.

[0007] Therefore, the air conditioning duct of this solution can eliminate the need for a separate air supply duct structure, and utilize the cavity between the ceiling and the vehicle body roof for air supply; it adopts an independently formed static pressure chamber, and at the same time, the static pressure chamber is directly installed as a whole structure on both sides of the vehicle body roof and the ceiling as a sealing structure on both sides of the air supply duct, which simplifies the overall structure, reduces weight and saves costs.

[0008] Based on the embodiments of this utility model, further optimizations can be made to this utility model. The optimized technical solutions are as follows:

[0009] To control the noise generated by the air conditioning vortex in the air supply duct, a perforated plate is further provided on the inner side of the air supply duct between the vehicle body roof and the ceiling; a number of the perforated plates are provided along the extension direction of the vehicle body roof, and the perforated plates divide the air supply duct into a number of interconnected air supply spaces.

[0010] Furthermore, the aperture of the perforated plate, which is positioned away from the air conditioning component, gradually decreases.

[0011] Furthermore, a baffle is provided between two adjacent perforated plates, with both ends of the baffle extending to the sides of the two static pressure chambers respectively.

[0012] Furthermore, the spoiler has a circular arc cross-sectional shape and is positioned in the middle of two adjacent perforated plates; sound-absorbing cotton is provided on the leeward side of both the perforated plates and the spoiler.

[0013] Furthermore, the upper side of the perforated plate is connected to the vehicle roof via a first crossbeam, and the lower side of the perforated plate is connected to the ceiling via a second crossbeam.

[0014] To prevent condensation and loss of cooling, the inner side of the vehicle body roof and the inner side of the ceiling are covered with insulation cotton.

[0015] Furthermore, an air outlet grille is connected to the lower part of the static pressure chamber via an inner longitudinal beam and an outer longitudinal beam, and a sealing element is provided between the inner longitudinal beam, the outer longitudinal beam and the static pressure chamber.

[0016] Furthermore, the static pressure chamber has a static pressure chamber inlet on the side facing the air supply duct.

[0017] Based on the same inventive concept, this utility model also provides a rail transit vehicle, including the rail transit vehicle air conditioning duct as described above.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1) The air conditioning duct of this utility model for rail transit vehicles can eliminate the need for a separate air supply duct structure. It utilizes the cavity between the ceiling and the car body roof for air supply. The air conditioning duct consists of a side static pressure chamber, a car body roof, and a sealed ceiling, which effectively reduces the duct structure, lowers the duct weight, and saves costs.

[0020] 2) The air conditioning duct of the rail transit vehicle of this utility model is provided with a guide plate and a perforated plate on the back of the ceiling. The guide plate and the perforated plate are multi-hole plate structures. Sound-absorbing cotton is pasted on the leeward side for noise reduction. At the same time, the guide plate is an arc structure, which effectively controls the generation of eddy noise.

[0021] 3) The aperture of the air duct plate of the rail transit vehicle of this utility model becomes smaller as it moves away from the air conditioning component, which helps to ensure the uniformity of air supply in the duct. Attached Figure Description

[0022] Figure 1 This is an isometric structural diagram of the air conditioning duct of this utility model;

[0023] Figure 2 This is a side view of the air conditioning duct of this utility model.

[0024] In the figure

[0025] 1-Vehicle roof; 2-Ceiling; 3-Static pressure chamber; 31-Static pressure chamber air inlet; 4-End sealing plate; 5-Seal; 6-Orifice plate; 7-Break plate; 8-First crossbeam; 9-Second crossbeam; 10-Insulation cotton; 11-Inner longitudinal beam; 12-Outer longitudinal beam; 13-Air outlet grille; 14-Lower seal; 15-Mounting base. Detailed Implementation

[0026] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0027] like Figure 1 As shown, the air conditioning duct of the rail transit vehicle in this embodiment includes a car body top cover 1, a ceiling 2 is provided below the car body top cover 1, and static pressure cavities 3 extending along the length direction of the car body top cover 1 and the ceiling 2 are provided between the car body top cover 1 and the ceiling 2 on both sides in the transverse direction of the vehicle; end sealing plates 4 are provided at both ends of the car body top cover 1 and the ceiling 2; the car body top cover 1, the ceiling 2, the end sealing plates 4 and the two static pressure cavities 3 form a relatively enclosed space as the air supply duct of the air conditioning unit; a static pressure cavity inlet 31 is opened on the side of the static pressure cavity 3 facing the air supply duct, and the side of the static pressure cavity 3 facing the air supply duct is connected to the air supply duct through the static pressure cavity inlet 31; sealing elements 5 are provided between the static pressure cavity 3 and the car body top cover 1, and between the static pressure cavity 3 and the ceiling 2.

[0028] The air conditioning duct consists of two static pressure chambers 3 on both sides. The vehicle body roof 1 and the vehicle ceiling 2 form the upper and lower sealing plates of the air conditioning duct, and end sealing plates are provided at both ends. The vehicle body roof 1, the ceiling 2, the end sealing plates 4, and the two static pressure chambers 3 are sealed together by a sealing element, which effectively reduces the duct structure and weight, while saving costs. The overall sealing performance is good, preventing the air conditioning air from leaking out.

[0029] To prevent heat loss or condensation, the inner sides of the vehicle body roof 1 and the ceiling 2 are covered with insulating cotton 10. The insulating cotton 10 covers all exposed portions of the inner sides of the vehicle body roof 1 and the ceiling 2.

[0030] To reduce noise and effectively control the generation of eddy noise, a perforated plate 6 is provided on the inner side of the air supply duct, located between the vehicle body roof 1 and the ceiling 2; a plurality of perforated plates 6 are provided along the extension direction of the vehicle body roof 1, and the perforated plates 6 divide the air supply duct into a plurality of interconnected air supply spaces; a baffle 7 is provided between two adjacent perforated plates 6, and the two ends of the baffle 7 extend to the sides of the two static pressure chambers 3 respectively.

[0031] The spoiler 7 has an arc-shaped cross-section and is positioned between two adjacent perforated plates 6. Sound-absorbing cotton is provided on the leeward side of both the perforated plates 6 and the spoiler 7. The combined effect of the perforated plates 6 and the arc-shaped spoiler 7 effectively controls the generation of air conditioning vortices and thus reduces the noise generated by the air conditioning.

[0032] The upper side of the perforated plate 6 is connected to the vehicle roof 1 via a first crossbeam 8, and the lower side of the perforated plate 6 is connected to the ceiling 2 via a second crossbeam 9. The diameter of the perforations in the perforated plate 6 gradually decreases away from the air conditioning components, which helps to ensure the uniformity of airflow in the duct. The cross section of the first crossbeam 8 is arc-shaped, matching the shape of the vehicle roof 1. The second crossbeam 9 extends along the width of the vehicle roof 1 and runs horizontally through the inner side of the ceiling 2. The perforated plate 6 and the end sealing plate 4 are both fixedly installed on the ceiling via the second crossbeam 9.

[0033] An air outlet grille 13 is connected to the bottom of the static pressure chamber 3 via an inner longitudinal beam 11 and an outer longitudinal beam 12. Lower sealing elements 14 are provided between the inner longitudinal beam 11, the outer longitudinal beam 12, and the bottom surface of the static pressure chamber 3. In this embodiment, for overall structural compactness, the lower end of the air outlet grille 13 does not exceed the lower surface of the ceiling 2. The air outlet grille 13 is snap-fitted to the inner longitudinal beam 11 and the outer longitudinal beam 12. Furthermore, for installation stability, the air outlet grille 13 is also fixedly connected to the static pressure chamber 3 via a mounting base 15.

[0034] Based on the same inventive concept, this embodiment also provides a rail transit vehicle, including the rail transit vehicle air conditioning duct as described above.

[0035] The rail transit air conditioning duct and rail transit vehicle of this embodiment can effectively reduce the weight and cost of the duct, ensure the uniformity of the passenger compartment temperature, and provide a low-noise environment for the passenger compartment, thus ensuring the comfort of the passengers.

[0036] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the present invention by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. An air conditioning duct for a rail transit vehicle, comprising a vehicle body roof (1), characterized in that: A ceiling (2) is provided below the vehicle body roof (1). Static pressure chambers (3) extending along the length of the vehicle body roof (1) and the ceiling (2) are provided between the vehicle body roof (1) and the ceiling (2) and on both sides in the lateral direction of the vehicle. End sealing plates (4) are provided at both ends of the vehicle body roof (1) and the ceiling (2). The vehicle body roof (1), the ceiling (2), the end sealing plates (4) and the two static pressure chambers (3) form a relatively closed space as the air supply duct of the air conditioning unit. The side of the static pressure chamber (3) facing the air supply duct is connected to the air supply duct. Sealing elements (5) are provided between the static pressure chamber (3) and the vehicle body roof (1) and between the static pressure chamber (3) and the ceiling (2).

2. The air conditioning duct for rail transit vehicles according to claim 1, characterized in that: A perforated plate (6) is provided on the inner side of the air supply duct between the vehicle body roof (1) and the ceiling (2); a number of the perforated plates (6) are provided along the extension direction of the vehicle body roof (1), and the perforated plates (6) divide the air supply duct into a number of interconnected air supply spaces.

3. The air conditioning duct for rail transit vehicles according to claim 2, characterized in that: The aperture of the perforated plate (6) located away from the air conditioning component gradually decreases.

4. The air conditioning duct for rail transit vehicles according to claim 2, characterized in that: A baffle plate (7) is provided between two adjacent perforated plates (6), and the two ends of the baffle plate (7) extend to the sides of the two static pressure chambers (3).

5. The air conditioning duct for rail transit vehicles according to claim 4, characterized in that: The cross-sectional shape of the spoiler (7) is arc-shaped, and the spoiler (7) is located in the middle of two adjacent perforated plates (6); the leeward side of both the perforated plate (6) and the spoiler (7) is provided with sound-absorbing cotton.

6. The air conditioning duct for rail transit vehicles according to claim 2, characterized in that: The upper side of the perforated plate (6) is connected to the vehicle roof (1) via a first crossbeam (8), and the lower side of the perforated plate (6) is connected to the ceiling (2) via a second crossbeam (9).

7. The air conditioning duct for rail transit vehicles according to any one of claims 1-5, characterized in that: The inner side of the vehicle body roof (1) and the inner side of the ceiling (2) are both covered with thermal insulation cotton (10).

8. The air conditioning duct for rail transit vehicles according to any one of claims 1-5, characterized in that: An air outlet grille (13) is connected to the bottom of the static pressure chamber (3) via an inner longitudinal beam (11) and an outer longitudinal beam (12). A lower sealing element (14) is provided between the inner longitudinal beam (11), the outer longitudinal beam (12) and the bottom surface of the static pressure chamber (3).

9. The air conditioning duct for rail transit vehicles according to any one of claims 1-5, characterized in that: The static pressure chamber (3) has a static pressure chamber inlet (31) on the side facing the air supply duct.

10. A rail train, characterized in that, Including the air conditioning duct of rail transit vehicles as described in any one of claims 1-9.

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