Vehicle Battery Inlet Duct Grill for Cooling and Noise Blocking

The patent employs a grill structure with multiple ribs forming a grid pattern at the inlet hole. This grid structure functions as a porous-like barrier that allows air to pass through for cooling while blocking foreign materials such as leaves and debris from entering the battery system. The gaps in the grid provide sufficient airflow passage while the rib structure physically obstructs larger particles.

The grill acts as an intermediary element positioned between the vehicle interior and the battery system inlet. It mediates the airflow by allowing beneficial air passage while blocking harmful foreign materials. The grill structure serves as a filtering intermediary that separates useful airflow from contaminants without significantly impeding the cooling function.

The grill structure performs multiple functions simultaneously: it serves as a protective cover against foreign materials, an airflow regulator for cooling, and a noise barrier. By making the grill multi-functional, the patent eliminates the need for separate sound-absorbing materials, thereby reducing device complexity and manufacturing cost while still achieving noise reduction.

The patent combines the noise-blocking function with the existing grill structure that is already present for foreign material protection and airflow control. By merging the noise reduction capability into the existing grill design, the patent avoids adding separate sound-absorbing components, thus simplifying the overall device structure and reducing material costs.