New energy automobile secondary circuit passenger compartment and battery motor electric control thermal management system

Abstract

The invention provides a new energy automobile secondary circuit passenger compartment and battery motor electric control thermal management system. The system is composed of a refrigerant loop and acooling liquid loop. The refrigerant loop is composed of a compressor, a condenser, a throttling valve, an evaporator and a gas-liquid separator, so that a complete refrigeration cycle is formed. Thecooling liquid loop is divided into three parts of an outdoor heat exchanger unit, a battery motor electric control equipment heat dissipation and battery heating unit, and a passenger cabin heating and cooling unit. When the system runs, a water pump supplies power for the cooling liquid loop, and pumps the cooling liquid into each branch to realize the functions of refrigeration, heating and thelike. For the passenger compartment, the cooling liquid is used for exchanging heat with the interior, and the risk of refrigerant leakage is avoided. The cooling liquid loop is used for cooling or heating the passenger compartment, and the thermal management for battery, motor and electric control equipment in different modes is realized through opening or closing of an electromagnetic valve.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a secondary circuit passenger compartment of a new energy vehicle and a thermal management system for electric control of a battery motor. Background technique [0002] With the development of human beings, environmental pollution is becoming more and more serious. The problem of pollution caused by traditional fuel vehicles needs to be solved urgently, so new energy vehicles are gradually developed. The power source of new energy vehicles is the battery. The battery will continue to generate heat during charging and discharging. If the heat accumulates to a certain extent, it will cause thermal runaway and even cause the battery to explode. The same problem exists in motors and electronic control equipment. Only by effective thermal management of these three parts can these crises be avoided. [0003] For new energy vehicles, there is no waste heat from the engine ...

AI Technical Summary

Problems solved by technology

[0004] Various problems caused by global warming and the greenhouse effect are becoming more and more serious. The Montreal Protocol restricts the use of some refrigerants such as R407C, R410A, etc.

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