Electric vehicle thermal management system and device

Abstract

The invention discloses an electric vehicle thermal management system and device. The system comprises a first loop system and a second loop system which are used for heating and cooling an electric vehicle power battery, the first loop system comprises a first water pump, a second water pump, a water heater, a heat exchanger and a power battery, and the output end of the first water pump is connected to the input end of the water heater. According to the electric vehicle thermal management system and device, a passenger compartment can be heated or cooled in the running process of the electric vehicle, and heat preservation or cooling of the power battery is achieved; meanwhile, when the electric vehicle is in a static state, the environment temperature of the power battery is monitored in real time, a low-voltage battery is combined to preserve heat of the power battery to a certain extent, the service life of the power battery is effectively prolonged, and a low-temperature signal can be transmitted to a mobile phone of a user through a wireless signal transmitter, so that the user can take heat preservation measures in time.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to an electric vehicle thermal management system and device. Background technique [0002] An electric vehicle refers to a vehicle powered by a vehicle-mounted power supply, driven by a motor to drive the wheels, and conforming to the requirements of road traffic and safety regulations. With the development of society, people pay more and more attention to the environment, and the traditional diesel locomotives will produce various pollutants during operation, which will pollute the air. Therefore, electric vehicles came into being and have been greatly developed. Due to the Compared with traditional cars, it has less impact on the environment, and its prospects are widely optimistic. [0003] At present, the thermal management requirements of electric vehicles are higher than those of traditional systems, and their thermal management systems are more complicated. Not only the air ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a thermal management system and device for an electric vehicle to solve the problem in the above-mentioned background art that when the electric vehicle is in a static state, the on-board battery cannot be kept warm and the service life of the on-board battery is reduced

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