Tile for forming a ground power supply line

摘要

A ground power supply line for electric traction vehicles is provided with two conductors carried by a series of tiles aligned to one another; each tile has a conductive plate and a lower supporting structure, which is made of insulating material and accommodates electric connectors, normally open switches, and a control and command unit, which switches the switches for selectively electrically connecting the conductive plate to the conductors in response to a signal deriving from an electric traction vehicle passing over said external conductive plate; the upper surface of the conductive plates is flushed with the remaining part of a road surface.

主权项

1. A tile for forming a ground power supply line comprising:
a supporting structure made of electrically insulating material; an external conductive plate, arranged on an upper surface of said supporting structure and fixed to said supporting structure; wherein said supporting structure has: a first channel for a first portion of conductor which, in use, is connected to a first polarity of an electric generator; a second channel for a second portion of conductor which, in use, is connected to a second polarity of said electric generator; said second channel being parallel and electrically isolated from said first channel; and an electric connection assembly, which is accommodated in said supporting structure and includes: an electric connector in contact with said external conductive plate along said upper surface, a pair of electric connectors arranged at said first and second channels, respectively, to come in contact with said first and second portions of conductor; a switching assembly including a first switch connected between said plate and said first portion and a second switch connected between said plate and said second conductor, said first and second switches being normally open; and a control and command circuit for selectively switching one of said first and said second switches to electrically connect said external conductive plate to one of said first and second portions of conductor in response to a signal deriving from an electric vehicle passing over said external conductive plate.