New energy vehicle heat pump air conditioning system integrating three electric heat managements

Abstract

The invention relates to a new energy vehicle heat pump air conditioning system integrating three electric heat managements. The heat pump air conditioning system switches heat pump and air conditioner modes through a first normally closed electromagnetic valve and a second normally open electromagnetic valve, and forms a secondary loop through connection of a battery heat management system and amotor electric control heat management system; the battery heat management system forms a battery cooling unit loop by a chiller, a first secondary water tank, a first one-way valve, a battery liquidcooling plate, a water PTC, a second three-way valve and a first electric water pump connected in sequence; and the motor electric control heat management system forms a motor electric control coolingunit loop by a motor liquid cooling plate, an electric control liquid cooling plate, a first three-way valve, a low-temperature water tank, a second secondary water tank, a fourth electromagnetic valve, a battery liquid cooling plate, a sixth electromagnetic valve and a second electronic water pump connected in sequence. The new energy vehicle heat pump air conditioning system integrates the functions of passenger compartment heat management, batteries, motors and electric control heat management, provides a feasible scheme for vehicle heat management system development.

Description

technical field [0001] The invention relates to a new energy vehicle, in particular to a complete vehicle thermal management system of the new energy vehicle. Background technique [0002] With the shortage of energy and the increasingly serious environmental pollution problems, the research and development of electric vehicles has become a hot spot in today's automotive field. In order to pursue a more comfortable interior environment, the air conditioning system of electric vehicles plays a vital role. The heat pump air-conditioning system is energy-saving and efficient, and integrates heating and cooling, which can well meet the safety and comfort requirements of electric vehicles. [0003] In the existing technology, the general automobile heat pump air conditioner can realize cooling, heating and other modes. During the operation of electric vehicles, the motor and electronic control will also generate heat, and the heat absorbed by the outdoor evaporator will decrease ...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the general automobile heat pump air conditioner can realize cooling, heating and other modes. During the operation of electric vehicles, the motor and electronic control will also generate heat, and the heat absorbed by the outdoor evaporator will decrease with the temperature outside the vehicle. Therefore, the waste heat of the motor and electric control cannot be effectively used, and the heating performance of the system is reduced.

And too much reliance on PTC electric heaters will greatly reduce the cruising range

[0004] Therefore, there is an urgent need to propose a system solution that can solve the problem of waste heat generated by the motor and electric control of electric vehicles that cannot be fully utilized in the prior art, and improve the cruising range

Images