Mesh Air Inlet Filter for Ultra-Fine Particle Collection

The patent employs a mesh member with specific mesh sizes (50-200 mesh) as a porous structure to collect ultra-fine particles. This mesh structure allows airflow while capturing particles, achieving effective particle collection without the excessive pressure loss associated with non-woven fabric or sponge filters. The porous nature of the mesh enables selective filtration based on particle size while maintaining breathability.

The patent changes the physical parameters of the filtration system by specifying precise mesh size ranges (50-200 mesh) and mesh opening dimensions (0.05-0.2 mm). This parameter optimization allows the system to capture ultra-fine particles effectively while controlling pressure loss, unlike conventional filters that use arbitrary material selections. The parameter control balances filtration efficiency with airflow requirements.

The mesh member's porous structure with controlled mesh sizes provides adequate particle collection while maintaining sufficient airflow passage. This prevents the air from stagnating and heating up, which occurs with denser non-woven fabric or sponge filters. The porosity ensures heat dissipation while capturing particles.

By controlling mesh size parameters within specific ranges, the system optimizes the balance between particle collection efficiency and thermal management. The mesh structure allows enough airflow to prevent temperature buildup while still capturing ultra-fine particles, avoiding the overheating issue caused by overly dense conventional filters.

The patent uses a simple mesh structure with standardized mesh sizes (50-200 mesh) that can be directly installed on the air inlet. This approach avoids complex multi-layer filter assemblies or sophisticated filtration mechanisms. The mesh member's simplicity reduces device complexity while maintaining effective ultra-fine particle collection through its porous geometry.

The patent simplifies the device by specifying concrete parameter ranges for mesh size (50-200 mesh) and mesh opening (0.05-0.2 mm), replacing complex material selections with straightforward dimensional specifications. This parameter-based approach makes the filtration system easier to design, manufacture, and maintain while achieving superior particle collection.