Patent ID: 11134588

Abstract:
Embodiments are disclosed of an airflow cooling solution for a battery backup unit (BBU) using a crossflow cooling module. The cooling module includes a housing with a module inlet and a module outlet positioned at a non-zero angle relative to each other. The module outlet has an area greater than the module inlet. A crossflow fan package is positioned in the cooling module housing. The crossflow fan package includes a fan housing having a fan inlet and a fan outlet; the fan inlet is fluidly coupled to the module inlet, and the fan outlet is fluidly coupled to the module outlet. One or more inlet air baffles form an inlet air channel between the module inlet and the fan inlet, and one or more outlet air baffles form a diverging outlet air channel between the fan outlet and the module outlet. The cooling module can distribute the airflow to a much wider area to the BBU module. Then a rack level crossflow air cooling configuration is proposed.