Intelligent multi-loop electric automobile cooling system

Abstract

The invention relates to an intelligent multi-loop electric automobile cooling system. The intelligent multi-loop electric automobile cooling system comprises a power battery pack, an armature module, a battery radiator, an armature radiator, electric water pumps, straightway valves, three-way valves, a PTC heater and a heat exchanger. The cooling system is provided with the two electric water pumps, the two straightway valves and the three three-way valves, and a plurality of loops are formed through pipeline connection. Compared with the prior art, the intelligent multi-loop electric automobile cooling system is provided with the multiple three-way valves and the straightway valves, pipelines are connected to form the loops meeting different cooling or heating needs, the loops are selectively opened or closed according to the characteristics and working states of the electric automobile power battery pack and the armature module, thus temperature balance of an electric automobile is ensured, efficient operation of the electric automobile is ensured, and system energy conservation is significant. Power battery pack cooling and armature module cooling are associated with each other, thus automobile endurance mileage becomes longer, and the power performance and economy of the automobile become better.

Description

Technical field [0001] The invention belongs to the technical field of electric vehicles, and particularly relates to an intelligent multi-circuit cooling system for electric vehicles. Background technique [0002] As countries around the world pay more and more attention to environmental pollution and oil and other energy consumption issues, the development prospects of electric vehicles are generally optimistic. Its production and sales are increasing year by year, and it is expected to completely replace traditional fuel vehicles in the future. Compared with traditional cars, electric vehicles have no exhaust emissions and are very environmentally friendly. However, there are also some development bottlenecks in electric vehicles at this stage. They have a longer charging time and have no advantages over traditional vehicles. In order to reduce the gap with traditional cars in terms of cruising range, electric cars are required to save energy as much as possible. Most of the ...

AI Technical Summary

Problems solved by technology

Most of the electric vehicles currently on the market have insufficient energy-saving cooling systems, and the cooling system of the power battery pack and the cooling system of the electric drive module are either not related to each other, or the correlation is not enough; when the power battery pack is cooled, usually either It is too dependent on air-conditioning cooling, resulting in shorter cruising range; or relying on adding a battery radiator in front of the condenser for cooling, which will not only have a negative impact on the performance of the air conditioner and the heat dissipation effect of the electric drive system, but also cause front-end modules The efficiency of the vehicle is reduced, and it will increase the wind resistance of the vehicle, making the power and economy of the vehicle worse

[0003] Chinese patent CN 205768485U discloses an electric vehicle intelligent thermal management system, which consists of a front heat exchanger, a passenger compartment heat exchanger, a TV, an electric control system, a motor water pump, a four-way reversing valve, a compressor, an electromagnetic switch, Composed of two three-way ball valves, evaporators, water pumps, battery handles, heat pipes, and battery heat exchangers, the heat of the three major thermal management systems of the vehicle's air conditioning system, motor electronic control system, and battery pack thermal management system can be fully transferred. Utilize each other, reduce the demand for heat dissipation and heating on battery energy, ensure the temperature balance between each battery cell, prolong the cruising range and the service life of the battery system, but the control loop formed by this system is relatively small, and the components in the system cannot be effectively utilized function of

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