A ventilation structure (100) includes a metal housing (10) and a ventilation member (30). The metal housing (10) is a housing that requires ventilation, and has a ventilation hole (12) and a hole-surrounding portion (14). The ventilation hole (12) is covered by the ventilation member (30). The hole-surrounding portion (14) defining the periphery of the ventilation hole(12) has been subjected to an alumite treatment, a Veluscudo treatment, a chromium-plating-on-aluminum treatment, or an oil-repellent treatment.
金属筐体及びそれを用いた通気構造
2021-07-21
Patent
Elektronische Ressource
Japanisch
IPC: | H05K PRINTED CIRCUITS , Gedruckte Schaltungen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C23C Beschichten metallischer Werkstoffe , COATING METALLIC MATERIAL / C25D Verfahren für die elektrolytische oder elektrophoretische Herstellung von Überzügen , PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS |