| 摘要 |
FIELD: electrical engineering. ^ SUBSTANCE: relay incorporates movable frame and platform made from nonmagnetic material. Magnetic system is made up of cores, pole tips, frame and windings, and arranged at platform bottom. Pole tips feature elongated shape and are separated by 1.0-2.0 mm-nonmagnetic gap. Contact system comprises front, rear and throw contacts and rigid thrust for rear and front contacts and is mounted on platform top. Throw contact drive system consists of plastic dog connected with armature and is mounted on movable frame at platform bottom together with armature that features area making 20-70% of the sum of areas of two pole tips and incorporates work travel limiter. Said plastic dog is secured to throw contact plates in central zone, while aforesaid limiter represents permanent magnet. Movable frame and armature make weight for armature return. ^ EFFECT: increased vibrational stability, reduced power-to-weight ratio and sizes. ^ 3 cl, 3 dwg |
