Isolation switch structure for 10kV power supply line

• Main Authors: FAN XINHUA, SHANG KAI, ZHAI GUANGPENG, ZHOU XIAOYAN, CAO JINGJUAN, WANG YUNTAO, JIANG BIN, WANG JINGLAI
• Format: Patent
• Language: English
• Published: 08.07.2015
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

The utility model discloses an isolation switch structure for a 10kV power supply line. The isolation switch structure comprises a base, a static contact seat and a movable contact seat are fixed to the base, a static contact is fixed to the static contact seat, a movable contact is hinged to the movable contact seat, the static contact is symmetrically provided with a first metal elastic piece, the inner side of the first metal elastic piece is symmetrically provided with second metal elastic pieces, the inner side faces of the second metal elastic pieces are provided with third metal elastic pieces, the movable contact is provided with a fourth metal elastic piece in an interference fit with the third metal elastic pieces, the outer side of the first metal elastic piece is provided with an electromagnetic coil through an insulating rubber pad, the static contact is provided with an auxiliary contact point, the movable contact is hinged with an auxiliary connecting piece, the auxiliary contact point is in insulating connection with the static contact, the auxiliary connecting piece is in insulating connection with the movable contact, and the auxiliary contact point, the auxiliary connecting piece, the electromagnetic coil and the power supply line form a conductive circuit. The isolation switch structure can improve a deficiency in the prior art, and generate a holding force through a power supply current to keep full contact between contact points.