High-arc-extinguishing stable direct-current contactor

The utility model provides a high-arc-extinguishing stable direct-current contactor, the appearances and shapes of a movable contact and a static contact are changed, and a ceramic cover matched with the movable contact is additionally arranged, so that the contact combination and disconnection are that the magnetic force of middle magnetic steel is maximized to be aligned with a combination point, and on-load disconnection and rapid arc extinguishing are ensured; the contact area of an electric arc and a contactor made of a ceramic material is increased, the electric arc is lengthened, the deionization effect is enhanced, the temperature reduction speed of the electric arc is accelerated, and the effect of extinguishing the electric arc as soon as possible is achieved. 本实用新型提供了一种高灭弧稳定型直流接触器，对动触点和静触点的外形，形状做出了改变，以及增加了一个与动触点配合的陶瓷罩，主要目的使触点结合断开是中磁钢磁力最大对准结合点，保证带载断开快速灭弧，使该产品增加了电弧与陶瓷材料的接触器的接触面积并拉长了电弧，加强了去游离作用，使得电弧温度降低速度加快，达到了尽快熄灭电弧的效果。