Ductless Modular Electric Bus Air Conditioning Unit

Abstract

The invention has no air duct module electric bus air -conditioning unit, condenser assembly adopts a bottomless shell frame structure, condenser core and evaporator core uses oblique wing tube sheet structure, and two axial flow -centric all -in -one fans are used.; Set the condenser assembly on the top of the frame of the passenger cars; set the evaporator assembly on the opposite position of the condenser assembly.The refrigerant flow of the motor switch valve core to enter the evaporator assembly; part of the part of the electric compressor assembly above the coagulator assembly through the top of the cassic window sinks and hides in the roof of the carriage; the electric compressor uses two levels of shock absorptionThe structure is fixed on the frame and sealed with the roof.The present invention introduces the concept of the module. An electric passenger car air -conditioning unit is an air -conditioning module. Its structure is compact and can be standardized according to the requirements of different models and users. It is very convenient for production, installation and maintenance.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of passenger car air conditioners, in particular to a ductless modular electric passenger car air conditioner unit suitable for installation and use in electric passenger cars with a height of 5 to 13.7 meters. Background technique [0002] Existing electric buses generally use roof-mounted integrated air-conditioning systems. Considering the air-conditioning installation space, the convenience of maintenance, and the timely replacement of wearing parts, the layout of roof-mounted air conditioners has become the main choice for installing air-conditioning systems in large and medium-sized buses. . However, for 5-13.7-meter electric buses, the models are different, and different roof-mounted air conditioners need to be used to match them, which requires different products, which is not conducive to large-scale production. In addition, the heat exchanger of the roof-mounted integrate...

AI Technical Summary

Problems solved by technology

However, for 5-13.7-meter electric buses, the models are different, and different roof-mounted air conditioners need to be used to match them, so that different products are required, which is not conducive to large-scale production

In addition, the heat exchanger of the roof-mounted integrated air-conditioning system mostly adopts the tube-sheet structure, the number of tube rows is large, and the air resistance is relatively large. The power consumption of the fan is large

Third, due to the height restriction of the electric compressor of the top-mounted integrated air-conditioning system, imported compressors or products of enterprises with foreign capital background are generally used, and the COP of large-displacement electric compressors is generally relatively low. The improvement of the performance of the whole machine is very unfavorable

The above-mentioned deficiencies make it difficult to improve the energy efficiency ratio of the existing air conditioner for electric passenger cars. Due to the large resistance of the heat exchanger and the large energy consumption of the fan, the problem of large energy consumption is unacceptable for electric passenger cars.

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