How to ensure shielding in the gaps of the inverter cabinet?

Ensuring the shielding effectiveness of gaps in the inverter cabinet is crucial for maintaining overall shielding performance. Electromagnetic waves can leak through gaps such as cabinet doors, panel seams, and ventilation openings. Measures to ensure this include: using conductive gaskets, such as beryllium copper finger springs, conductive rubber, and metal mesh gaskets, at all metal component joints. Gaskets should be installed on continuous, clean metal surfaces and ensure sufficient compression to form good electrical contact. For door panels, multiple grounding springs or hinged joints should be used to ensure electrical continuity with the cabinet frame when the door is closed. Ventilation openings should be covered with waveguide arrays or metal mesh, and their opening size should be less than 1/20th of the highest frequency wavelength requiring shielding. Display windows should use shielded windows. All screw mounting holes should be free of paint, ensuring direct metal contact between screws and the metal. For larger gaps, their length should be much shorter than the noise wavelength, or short-circuit points should be added midway (e.g., by adding fastening screws). The shielding effectiveness of gaps can be evaluated through simulation during the design phase. The effectiveness of gap shielding measures can be verified by testing and comparing radiated emissions before and after treatment. Eintech offers a full range of cabinet shielding materials, including padding, ventilation windows, and shielded viewing windows, to help build inverter cabinets with high shielding performance.