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A rail vehicle air conditioning unit installed under the vehicle

A technology for air-conditioning units and rail vehicles, which is applied in the heating/cooling of railway vehicles, transportation and packaging, railway car body parts, etc. It can solve the problems that the condensing air volume cannot meet the air conditioner, the space under the large car, and the impact on ride comfort, etc., to achieve Improve the cooling effect, increase the condensing air volume, and save the space under the car

Active Publication Date: 2017-10-03
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of the equipment layout in the equipment compartment under the vehicle, the condensing air volume after the air conditioner is installed is smaller than the design value, and the condensing effect of one side inlet and one side outlet is poor, and the condensing air volume cannot meet the high temperature cooling season requirements, the ride comfort in the car is affected to a certain extent
Moreover, the existing unitary air-conditioning units are installed and arranged along the length of the car body, and space must be reserved between both sides of the air-conditioning unit and the skirt plate for gas circulation, which takes up a large space under the car.

Method used

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  • A rail vehicle air conditioning unit installed under the vehicle
  • A rail vehicle air conditioning unit installed under the vehicle
  • A rail vehicle air conditioning unit installed under the vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the rail vehicle air-conditioning unit installed under the vehicle provided by the present invention is a unitary air-conditioning unit, which is integrally installed in the equipment cabin 1 under the vehicle. The air-conditioning unit includes a housing 2, which is divided into indoor Side 3 and outdoor side 4, evaporator 5, evaporator fan 6, etc. are installed on indoor side 3, condenser 7, condensing fan 8 and compressor 9 are installed on outdoor side 4, and air outlet 10 is opened on the shell of indoor side 3 And the air return port 11, on the housing of the outdoor side 4, a condensing air inlet 12 and a condensing air outlet 13 are opened.

[0027] In order to realize the ventilation and cooling of the equipment in the equipment compartment 1, an air inlet 15 is provided on the skirt plate 14, and a first filter device is arranged at the air inlet 15, the first filter device is a filter screen or a mechanical filter, etc. In order to...

Embodiment 2

[0032] The difference from Embodiment 1 is that, as image 3 with Figure 4 As shown, the direction of the arrow in the figure is the direction of air flow. In this embodiment, the housing 2 is extended in the width direction of the vehicle body, and the side walls on both sides of the housing 2 are arranged close to the air inlets 15 of the skirt plates 14 on both sides. The length of the housing 2 in the width direction of the vehicle body is greater than The length in the length direction of the vehicle body, that is, the length in the vehicle width direction is lengthened, and the length in the vehicle length direction is shortened. Since the condensing air inlet 12 on the two side walls of the housing 2 is close to the air inlet 15 of the skirt plate 14, most of the air with a lower temperature entering from the air inlet 15 enters the housing 2 of the air conditioning unit and participates in the condenser. 7 heat exchange, which improves the heat exchange efficiency o...

Embodiment 3

[0036] The difference from Embodiment 2 is that the side walls on both sides of the housing 2 are open structures, and the entire side walls are used as condensation air inlets 12, and the side walls on both sides of the housing 2 and the corresponding skirt boards 14 are respectively passed through The connecting plate (not shown in the figure) is connected, and the connecting plate surrounds the air inlet duct, communicates the condensing air inlet 12 with the air inlet 15 of the skirt plate 14, and separates the condensing air inlet 12 and the air inlet 15 of the skirt plate 14 An independent space is created, so that the air with a lower temperature entering from the air inlet 15 all enters the housing 2 of the air conditioning unit, and participates in the heat exchange of the condenser 7, further improving the heat exchange efficiency of the air conditioning unit.

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Abstract

The invention relates to a railway vehicle air conditioning unit installed under a vehicle. The railway vehicle air conditioning unit installed under the vehicle is a unit type air conditioning unit and comprises a housing, wherein the housing is divided into an indoor side and an outdoor side, two condensers, a condensation fan and a compressor are installed on the outdoor side, condensation air inlets are formed in two side walls corresponding to two side skirt plates of a device cabin, of the housing, a condensation air outlet is formed in the bottom wall of the housing, the condensation fan is close to the condensation air outlet formed in the bottom wall, and the two condensers are respectively close to the condensation air inlets on two sides. The number of the condensers is increased, a condensation air inlet-outlet mode is changed, the air conditioning air inlet-outlet area is doubled, accordingly air conditioning condensation air volume is increased, the refrigeration effect of an air conditioner at high temperature is improved, and riding comfort of passengers during long-time operation in a high-temperature environment is improved.

Description

technical field [0001] The invention relates to an air-conditioning unit, in particular to a rail vehicle air-conditioning unit installed under a vehicle, and belongs to the technical field of rail vehicle air conditioning. Background technique [0002] At present, the installation methods of vehicle air-conditioning units are mainly divided into roof installation and under-vehicle installation. Installing the air-conditioner under the vehicle is beneficial to lower the center of gravity of the vehicle, and the stability of the vehicle at high speed is relatively good. When the air conditioner is installed on the roof, the distance from the track surface is relatively high (about 3.3m), and the condensing air temperature is close to the atmospheric temperature, and the maximum atmospheric temperature does not exceed 45°C in high temperature seasons. The condensation effect of the air conditioner is relatively good in high temperature seasons, and can Output larger cooling ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61D27/00
CPCB61D27/0072
Inventor 王宗昌周新喜臧兴旺夏建军李鹏王晶凯高乐乐游进袁博梁建英
Owner CRRC QINGDAO SIFANG CO LTD
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