48results about How to "Large magnetic area" patented technology

The utility model relates to a relay structure. An anti-short-circuit large-current high-voltage relay comprises a bottom plate, a housing installed on the bottom plate, a static contact piece installed on the housing, a push rod structure and a movable contact piece installed in the housing, a support arranged in the housing, a first upper armature installed on the support and located above the movable contact piece, a lower armature installed on the push rod structure, and a second upper armature installed on the lower armature and located above the movable contact piece. The lower armature is located below the movable contact piece, a second upper armature is arranged above the movable contact piece, the movement stroke of the lower armature moving upwards under the action of the push rod is a first stroke, the movement stroke of the second upper armature moving upwards under the action of the push rod is a second stroke, and the second stroke is larger than the first stroke. The high-voltage relay structure resistant to short circuit and large current is simple in structure, good in reliability, and capable of effectively preventing short circuit and improving the stability of the relay. The technical problems that in the prior art, a high-voltage relay cannot meet the requirement for passing of large current, and performance is not stable are solved.