ELECTRIC VEHICLE CURRENT COLLECTOR Russian patent published in 2004 - IPC

FIELD: transport engineering; electric transport. SUBSTANCE: contact central part of insert on length of 0.4-0.6 of smaller base of holder trapezium in current collector is made parallel to said base, and entry part for contact wire of contact insert is described by branch of parabola with formula y = (0,2...0,4)x² where y is current width of insert; x is current difference (h_max-h_min). Butt joints of end faces of central and extreme parts of insert are made at angle of 45^o to horizon. Composite carbon-containing insert is secured in holder by means of dovetail joints. EFFECT: reduced material usage, increased wear resistances of current collecting composite carbon-containing insert. 3 dwg