ELECTROMAGNETIC DRIVE Russian patent published in 2017 - IPC H01H3/28 H01H33/666 H01F7/122 

FIELD: electricity.

SUBSTANCE: invention relates to electric switch (20) electromagnetic drive (10), particularly TO electric power circuit breaker containing at least one movable armature (60), which can perform reciprocal movement in specified movement direction (P), indirectly or directly connected with switch (20) moving switching contact (21) and in closed position (61) closes drive (10) magnetic circuits (M1, M2) on armature (60) first thrust surface (62) with first conducting yoke (100) of drive and on armature (60) second thrust surface (63) is with drive (10) second conducting yoke (105), at least one permanent magnet (90, 95), generating magnetic field for magnetic circuit (M1, M2) and holding force to hold armature (60) in closed position (61), and at least one coil (80) located so, that it can generate magnetic flow due to current flow through it, associated or counter to magnetic flow of permanent magnet (90, 95) in magnetic circuit (M1, M2), wherein after assembly electromagnetic drive (10) provides readjusted state due to, that due to magnetic force of permanent magnet (90, 95) self-adjustment of first and second yokes (100, 105) positions relative to each other is possible, and wherein both yokes (100, 105) can be brought in strongly assembled position due to, that they are immovably oriented irrespective of further armature (60) positioning.

EFFECT: disclosed is electromagnetic drive.

10 cl, 7 dwg