Patent ID: 9685812
Date: 2017-06-20
CPC Classifications: B60L,B60M,H01F,H02J,Y02T

Claim:
1. A device for inductive energy transfer, comprising a track which comprises a three-phase primary system made up of primary windings which are mounted on stationary ferromagnetic iron core parts, and an object which rolls or is stationary on the track comprises a three-phase secondary system which can be inductively coupled to the three-phase primary system and is made up of secondary windings which are mounted on a mobile ferromagnetic iron core part, characterized by a magnetically symmetrical design with magnetic flux paths of equal length through the primary windings and secondary windings of the three phases and correspondingly approximately constant power transfer during the movement in which the stationary ferromagnetic iron core parts are in the form of an equilateral triangle or in the form of a star which spans an equilateral triangle and has limbs of equal length which run at the same angle in relation to one another and supporting posts which extend from the ends of said limbs and also primary windings which are arranged at the same distance from one another, and the mobile ferromagnetic iron core part is in the form of an equilateral triangle or in the form of a star which spans an equilateral triangle and has limbs of equal length which run at the same angle in relation to one another and supporting posts which extend from the ends of said limbs and also secondary windings which are arranged at the same distance from one another wherein stationary ferromagnetic iron core parts arranged at a distance one behind the other and connected electrically in parallel or in series, are connected at the respective supporting posts by means of parallel magnetic rails onto which the mobile ferromagnetic iron core part is rollable or the mobile ferromagnetic iron core part is positionable with the aid of ferromagnetic running rollers which are accommodated in recesses in the mobile supporting posts.