Pressure Cycle Test Bench
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A pressure
test rig is an independent unit. It contains a media temperature control unit
and an integration into a climate chamber. The pressure rig is powered by up to
12 bar by a hydraulic pressure intensifier. It has the capability to perform a
vacuum test with a pressure change from negative pressure to positive pressure.
This test
is designed to simulate the load on the component caused by fluctuations in the
coolant pressure, including the conditions that occur during the reheating
phase and the negative pressure filling of the cooling system. It is applicable
only for components that are connected to a coolant circuit.
The purpose
of the test is to verify the mechanical strength and tightness of components
exposed to pressure fluctuations in the cooling circuit (e.g. cooling plates of
the power module).
Frequently
pressure cycle tested DUTs are electronic control units (ECUs), next gen ADAS
Domain Control Units and their cooling circuits and cooling plates, battery
housings, AD/DC, DC/DC converters, high voltage cooling heaters (HVCH), heat
exchangers, liquid-cooled power converters, and many more.