A working mode of a new energy vehicle air conditioning system with fast defrosting and defogging functions

Abstract

The invention discloses a new energy automotive air conditioning system with rapid defrosting and demisting functions. The system is characterized by being mainly composed of an interior heat exchanger side primary temperature rise and heat increase subsystem, a compressor side secondary temperature rise and heat increase subsystem, an exterior heat exchanger side third-stage temperature rise and heat increase subsystem, a power device composite heat recovery subsystem, a decompression expansion mechanism, auxiliary equipment, a connecting pipeline and the like. According to the new energy automotive air conditioning system with the rapid defrosting and demisting functions, provided by the invention, due to a combination of three temperature rise and heat increase subsystems such as the interior heat exchanger side primary temperature rise and heat increase subsystem, the compressor side secondary temperature rise and heat increase subsystem and the compressor side secondary temperature rise and heat increase subsystem, the prominent problems that the exhaust temperature of the compressor is extremely high, the interior heat exchanger has thick frost and defrosting difficulty, the system heat supply capacity and efficiency are low and the system operating reliability is low during heat pump air-conditioning low-temperature operation and the like can be obviously solved.

Description

technical field [0001] The invention relates to a fast defrosting and defogging air conditioning system, in particular to a working mode of a new energy automobile air conditioning system with fast defrosting and defogging functions. Background technique [0002] With the development of new energy vehicle technology, the development of a heat pump air-conditioning system for new energy vehicles with fast defrosting and defogging functions has become one of the key technologies to be solved urgently. Big constraints, especially when the outdoor air temperature is very low, the developed heat pump type new energy vehicle air conditioning system cannot work normally, and it is easy to form thick frost on the side of the external heat exchanger, so the traditional reverse defrosting method is adopted At the same time, it has the disadvantages of long defrosting time, high power consumption, and poor effect, which seriously affects the promotion and application of heat pump new e...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a working mode of the air-conditioning system of new energy vehicles with the function of rapid defrosting and defogging, so as to solve the problem of frosting on the external heat exchanger of the current common electric vehicle air-conditioning system when the outdoor temperature is too low. Thick, difficult to defrost, so that the whole system can not work properly

Images