Frequency converter protection assembly of shore power variable-frequency power supply

• Main Authors: QI YONGYI, LIU JINCHEN, CAO SEN
• Format: Patent
• Language: Chinese; English
• Published: 08.02.2022
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRINTED CIRCUITS; SEPARATION; TRANSPORTING

The utility model discloses a frequency converter protection assembly of a shore power variable frequency power supply, which comprises a first hollow plate and a second hollow plate, dehumidification plates are fixedly arranged at one end of the first hollow plate and one end of the second hollow plate, and the other end of the first hollow plate is connected with the other end of the second hollow plate through a locking mechanism. Dust screens are fixedly arranged on the outer sides of the dehumidification plates, and sealing strips are fixedly arranged on the inner sides of the dehumidification plates. According to the utility model, air circulating in the frequency converter is dried by the solid drying agent in the dehumidification plate through the ventilation openings clamped at the two sides of the frequency converter, and dust and impurities are blocked by the dustproof net, so that moisture and dust and impurities are prevented from entering the frequency converter to damage a circuit board, and th