Fast-breaking high-voltage DC contactor

• Main Authors: YIN QIUSHENG, JIN JIANLING, MA WUKUN, JIN RONG, QU SHUYA
• Format: Patent
• Language: Chinese; English
• Published: 17.12.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

The invention discloses a fast-breaking high-voltage DC contactor, which comprises a shell, a coil assembly fixed in the shell, a movable contact assembly arranged in the shell and capable of slidingup and down relative to the coil assembly, a static contact fixed in the shell and directly above the movable contact assembly, an upper end cover sleeving the outer circle of the movable contact assembly and fixed to the top end of the coil assembly, an arc extinguishing magnetic steel fixed in the shell and adjacent to the closing interface of the movable contact assembly and the static contactand a fast breaking magnetic steel with the bottom end fixed on the inner bottom of the shell. The fast breaking magnetic steel is arranged below the movable magnetic core of the movable contact assembly, so that the movable contact and the static contact of the high-voltage DC contactor can be quickly broken, the arcing time of an electric arc is shortened, and the contact rebound of the contactor is optimized. 本发明公开了一种快速