Device for transmitting electrical energy

Abstract

The invention relates to a device for inductively transmitting electrical energy to or from a mobile object (3) that is located on a roadway or rail, is at a standstill or in motion, and comprises a load and / or an energy store, comprising a floor inductor (5) that is associated with the roadway (1) and comprises a plurality of first induction coils (4) that are arranged along the roadway (1) or rail, are connected to a current source, and have a magnetically conductive iron core (6) for generating a magnetic field directed toward the moving object (3). An inductive wheel (8) attached to the moving object (3) comprises a stationary second induction coil (9) having a magnetically conductive iron core (10) and magnetically conductive wheel disks (11, 12) that are directed toward the roadway (1) or rail and connected to said magnetically conductive iron core on both sides. Elastic, magnetically conductive tires (13) rotating with the motion of the object (3) are associated with the wheel disks for contacting the roadway (1) and for ensuring a low-loss magnetic flux between the induction coils (4, 9), wherein in the flattened state, said tires securely bridge an air gap between the roadway and wheel disks. The device can be used advantageously in connection with electric vehicles for comfortably and quickly recharging the batteries during driving or parking.

Description

technical field [0001] The invention relates to a device for the inductive transfer of electrical energy to or from a mobile stationary or moving object on a roadway or rail, said object having electrical consumers and / or Accumulator. Background technique [0002] In many areas of industry and logistics, for example in the case of manufacturing plants or mobile objects such as railways, land transport units, electric vehicles, crane installations, traveling bridges or similar units, but also in truck trailers, railway carriages Or in the case of refrigerated containers, the supply of electrical energy is necessary, usually by means of sliding contacts and energy chains or by means of batteries and charging cables. In addition to the lack of freedom of movement and downtime, this type of energy transmission is disadvantageous due to its susceptibility to disturbances and high maintenance costs. Furthermore, methods for inductively contactless energy transfer via transformer...

AI Technical Summary

Problems solved by technology

The energy transfer for charging the accumulator takes place in a known manner at a stationary charging station in the stationary state of the vehicle using known plug solutions, which is disadvantageous for the user due to the long charging times and the associated waiting times of

The replacement of discharged batteries is also associated with significant costs

Furthermore, the cost for the battery and its weight are high

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