Square movable contact piece formula high voltage direct current contactor

The utility model discloses a square movable contact piece formula high voltage direct current contactor, including square movable contact piece, arc extinguishing system and electromagnetic system, wherein electromagnetic system fixes in the casing, and electromagnetic system top cartridge has core rod, installs the contact spring above the core rod, and square movable contact piece top is the quiet contact piece of switch -on load, and the fixed mounting of arc extinguishing system is on the bedplate subassembly. Adopt square movable contact piece incompletely to cover the method of quiet contact piece, improve contact system's extinguished electric arc ability to promote the short -circuit current ability of contactor, reduce movable contact piece ablation face in the course of the work, improve the life of contactor. 本实用新型公开了种方形动接触片式高压直流接触器，包括方形动接触片、灭弧系统及电磁系统，其中电磁系统固定在壳体内，电磁系统顶端插装有心杆，心杆上边安装有触头弹簧，方形动接触片上方为接通负载的静接触片，灭弧系统固定安装于座板组件上。采用方形动接触片不完全覆盖静接触片的方法，提高触头系统的熄灭电弧能力，从而提升接触器的短路电流能力，降低动接触片在工作过程中的烧蚀面，提高接触器的使用寿命