Liquid cooling plate, is one of the most critical components of battery pack liquid cooling system in electric vehicles. The battery generates excess heat, which is transmitted through the contact between the battery and the liquid cooling plate cooler, and ultimately carried away by the cooling liquid passing through the internal flow channel of the cooling plate.
There are many methods to detect water cold plate, such as immersion testing, helium gas detection, phased array water immersion, and high & low temperature cycling testing. Below, we will briefly introduce the high & low temperature cycling test of liquid cool plate cooler.
Test content:
a. Inject heat exchange medium with alternating pressure into the liquid cooling system at room temperature;
b. The pressure of the liquid medium increases from 30 kPa to 125 kPa, and then decreases to 30 kPa after being kept under pressure, forming a pressure cycle. The cycle period is 6-10 seconds, the holding time is 3-6 seconds, and the temperature of the heat exchange medium is 45 ℃± 2 ℃. The test cycle is 5000 times.
