Power supply device for vehicles

The power supply device addresses overheating issues by integrating fluid-cooled heat transfer systems for contact elements, enabling continuous high-power transmission without thermal limitations and reducing the need for multiple units.

WO2026114641A1PCT designated stage Publication Date: 2026-06-04SIEMENS MOBILITY AUSTRIA GMBH
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SIEMENS MOBILITY AUSTRIA GMBH
Filing Date
2025-11-12
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing power supply devices for vehicles face overheating issues due to high electrical currents, necessitating time-dependent current limits and multiple power supply units to manage thermal stress, which complicates the design and operation of charging systems.

Method used

The power supply device incorporates cooling devices for the contact elements, utilizing fluid-cooled heat transfer systems with insulated lines and heat sinks to prevent overheating, allowing for continuous high-power transmission without thermal limitations.

Benefits of technology

This solution eliminates the need for time-dependent current limits and reduces the number of power supply units, ensuring reliable and efficient power transfer by effectively managing thermal stress through cooling mechanisms.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a power supply device for vehicles, which is configured to transmit electric current between an infrastructure and a vehicle and to supply electric current to the vehicle, having at least one first contact device (1) and at least one first mating contact device (3), which can be brought into electrical contact with each other and can be separated from each other, wherein at least the first contact device (1) is embodied as a current collector component that can be connected to the vehicle on an outer side of the vehicle or as a component of a docking device (9) for a current collector. According to the invention, at least the first contact device (1) or at least the first mating contact device (3) is designed to be cooled by means of a fluid as a cooling device or is connected to a cooling device via at least one heat-transmitting line (5), wherein the fluid and / or the at least one heat-transmitting line (5) are / is electrically insulating. This prevents overheating even at high electrical peak and / or continuous power levels.
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