Performance test system and method for battery liquid cooling plate

Abstract

The invention provides a performance test system for a battery liquid cooling plate. The system comprises a test module for simulating heating in charging and discharging a battery, a water inlet pipeand a water outlet pipe. The test module comprises an insulating shell with an opened bottom surface and also comprises an upper metal plate, an electric heater, a lower metal plate and a silica gelthermal conductive pad which are stacked from the top to bottom in the shell. An inner wall of the shell is provided with a heat insulation layer, the electric heater is provided with a power controller, the silica gel thermal conductive pad is provided with multiple thermocouples, a bottom of the shell is used for connecting a liquid cooling plate to be tested, the silica gel thermal conductive pad is attached to the surface of the liquid cooling plate, the water inlet pipe is provided with an inlet temperature sensor and an inlet pressure sensor and is connected to a liquid cooling plate water inlet, the water outlet pipe is provided with an outlet temperature sensor and an outlet pressure sensor, and the water outlet pipe is connected to a water outlet of the liquid cooling plate. The system has the advantages that the heat balance rates of the liquid cooling plate of a power battery under various operating conditions can be quickly simulated and tested, the accurate and objective evaluation of the heat dissipation performance of the liquid cooling plate is facilitated, and the rapid selection design is achieved.

Description

technical field [0001] The invention relates to the technical field of power battery cooling, in particular to a battery liquid cold plate performance testing system and method. Background technique [0002] With the rise of the new energy vehicle industry, electric vehicles have gradually entered the automotive market. The public has more and more expectations and voices for the improvement of the power performance of electric vehicles, the increase of cruising range and the shortening of charging time. The important way to solve the above expectations is the power battery. upgrade optimization. With the upgrading and optimization of the industry, the power battery carries more and more electricity, the energy density of the battery cell is getting higher and higher, and the heat generated during charging and discharging is also increasing. Therefore, the power battery part of the electric vehicle is equipped with There is a thermal management system to keep the battery op...

AI Technical Summary

Problems solved by technology

The liquid cold plate and its accessories are important components in the battery thermal management system. In order to ensure the thermal management effect of the battery thermal management system, it is necessary to test the performance of the liquid cold plate of the power battery. The existing test method is to measure the power of the power battery. The temperature can be used to indirectly detect the heat dissipation performance of the liquid cold plate, and the heat dissipation performance of the liquid cold plate cannot be directly measured

Images