Ultra-thin air conditioning unit and urban rail vehicle installed with air conditioning unit

Abstract

The invention relates to an ultra-thin air conditioning unit and an urban rail vehicle installed with the air conditioning unit. The air conditioning unit comprises a shell; an air supply outlet and an air return inlet are formed in the bottom wall of the shell; two refrigeration and heating systems are separately arranged in the shell; the refrigeration and heating systems are symmetrical; each refrigeration and heating system comprises two compressors, two condensers, two evaporators, two expansion valves, two evaporator fans, a condenser fan and two electric heaters; each refrigeration and heating system is equipped with a controller; and the controller is integrated in the shell. The ultra-thin air conditioning unit is compact in structure and reasonable in layout, mechanical and electrical integration design is adopted, the controller is integrated in the shell of the air conditioning unit, a separate air-conditioning control cabinet in the existing urban rail vehicle technology is omitted, and the space in the vehicle is saved.

Description

technical field [0001] The invention relates to an air-conditioning unit, in particular to an ultra-thin air-conditioning unit installed on an urban rail vehicle, and at the same time relates to an urban rail vehicle equipped with the air-conditioning unit, belonging to the technical field of rail vehicle air conditioning. Background technique [0002] In urban rail vehicles, each passenger compartment is generally equipped with one or two air-conditioning units, and each air-conditioning unit adopts a unit structure and is installed on the roof of the vehicle as a whole. The air conditioner unit is connected to the air supply port and the return air port in the car through the air supply duct and the return air duct. It enters the air conditioning unit through the air return port, mixes with the fresh air, and then exchanges heat with the evaporator to complete the refrigeration cycle. [0003] For existing rail vehicles, each carriage will also be equipped with a control ...

AI Technical Summary

Problems solved by technology

[0005] Some rail vehicles are limited by vehicle space and boundaries. In the case of large cooling capacity requirements, the height of the air-conditioning unit is limited. On the premise of ensuring the interior height space of the passenger compartment, there is not enough space above the ceiling in the passenger compartment to arrange the air-conditioning control cabinet and Air conditioner air duct

However, in the air-conditioning duct system in the prior art, since the air supply duct and the static pressure duct are installed in the space above the roof panel, the overall height of the vehicle is increased, which cannot meet the limit requirements of the vehicle height, and takes up more headroom

In addition, the air-conditioning air duct system in the prior art is equipped with a central air supply duct, a static pressure air duct and a side top air supply duct, which has a complex structure, which not only increases the number and weight of the air ducts, but also indirectly increases the The weight of the body cannot meet the requirements of light weight of the body, and it also increases the material cost of the air duct and the difficulty of installation and fixing

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