Magnetic line closed type dual-combination electric permanent magnet driving dual-power-supply change-over switch

• Main Authors: ZOU CHUNSHENG, ZHAO WEI, WANG KECHENG
• Format: Patent
• Language: Chinese; English
• Published: 28.10.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

The invention discloses a magnetic line closed type dual-combination electric permanent magnet driving dual-power-supply change-over switch which comprises a bottom layer structure, a middle layer structure and a top layer structure. The bottom layer structure comprises a bottom shell, a main power supply input assembly, a standby power supply input assembly, a load end output assembly and an arc chute; the middle layer structure comprises a middle frame support, a moving contact mechanism, a main supply end permanent magnet, a standby supply end permanent magnet and a sliding mechanism, the moving contact mechanism slides left and right along the sliding mechanism and comprises a moving contact assembly, a moving contact support and an electromagnet, and the main supply end permanent magnet, the standby supply end permanent magnet and the electromagnet are coaxially and collinearly arranged; the open suction surfaces of the two permanent magnets have the same polarity; the top layer structure comprises an up