Power supply device, power acquisition device and safety system for electromagnetic induction-powered electric vehicle

摘要

It is provided a power supply device and a power acquisition device for an electromagnetic induction-powered electric vehicle that increase a power transfer efficiency by maximizing a lateral deviation tolerance and by minimizing a gap between the power acquisition device and the power supply device while preventing the power acquisition device from colliding with an obstacle present on a road and being damaged by the collision.

主权项

1. A power supply device embedded in a road for transferring power, by electromagnetic induction, to a power acquisition device of an electric vehicle, comprising:
a power supply core unit extending along a longitudinal direction of the road and having a substantially E-shaped cross section normal to the longitudinal direction of the road, the power supply core unit including a central core portion disposed at a center portion of the power supply core unit along the longitudinal direction of the road, two side core portions disposed at two opposite sides of the power supply core unit along the longitudinal direction of the road, each of the side core portions being spaced apart from the central core portion with a first space therebetween, and a base core portion disposed at a lower portion of the power supply core unit to magnetically connect the central core portion with the side core portions; and a magnetic field generating unit disposed in the first spaces between the central core portion and the side core portions, wherein each of the side core portions has segmented core portions and second spaces therebetween disposed along the longitudinal direction of the road and the lengths of each segmented core portion and each second space along the longitudinal direction of the road are substantially identical to each other.