CONTACTLESS CURRENT COLLECTING DEVICE FOR TRANSMISSION OF POWER SUPPLY TO ROTATING OBJECT Russian patent published in 1994 - IPC

FIELD: electric engineering. SUBSTANCE: device has rotation transformer which has movable and immovable parts which are spaced and form sheathing magnetic circuit. Primary and secondary windings are mounted inside magnetic circuit. Movable part of transformer has yoke shaped as cylinder and central rod. Immovable part of transformer is made as base where end yoke is mounted. It is shaped as flat disk having central hole. Movable has constant shape of section in plane intersected its axis of symmetry. Inside surface of yoke of movable part and end yoke of immovable part are mounted with space which coaxial to space between outside surface of central rod of movable part and inside surface of end yoke immovable part. Faces of base adjoined to yoke of immovable part are placed inside space shaped by rod and yoke of movable part. Width of yoke of movable part is less than width of end yoke of immovable part. EFFECT: decreased size of device and elimination of fluctuations in magnetic flow. 1 dwg