Cooling-optimized vehicle charging equipment

The vehicle charging device addresses cooling challenges by separating components into distinct cooling paths with a fluid accelerator and customized geometries, achieving efficient and safe charging with reduced noise and emissions.

JP2025531670AActive Publication Date: 2025-09-25BRUSA ELEKTRONIK AG
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Patent Information

Application Number
JP2025508888
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-09-08
Filing Date
2023-08-30
Publication Date
2025-09-25
Estimated Expiration
2043-08-30

AI Technical Summary

Technical Problem

Efficiently cooling multiple components within a flat vehicle charging device housing, which have varying cooling requirements, including different power densities, temperature tolerances, and environmental exposure, is challenging due to the need for active cooling in inductive power transfer systems.

Method used

A vehicle charging device with a cooling system that spatially separates components into different sections, utilizing distinct cooling paths and a fluid accelerator to transport fluid between them, with customized cooling geometries and materials to address varying heat dissipation needs, and includes temperature sensors and control units for adaptive cooling.

Benefits of technology

Enables safer, more efficient, and faster vehicle charging by effectively cooling components with diverse cooling needs, reducing noise and emissions, and enhancing safety through internal cooling and compact design.

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Abstract

The present invention relates to a vehicle charging device (2) for inductively charging an energy accumulator (7) of a vehicle (1), the vehicle charging device (2) comprising an interface (5) for receiving electric power, a first section comprising at least a coil, a second section comprising power electronics configured to convert the electric power received at the interface (5) into a defined AC current, and a cooling system comprising a fluid accelerator, a fluid inlet, and a fluid outlet, the cooling system being configured to cool the vehicle charging device (2) using a fluid, the first section and the second section being spatially separated, the cooling system comprising a first cooling path arranged in the first section and a second cooling path arranged in the second section, the fluid inlet being arranged in the first section and the fluid outlet being arranged in the second section, and the fluid accelerator being configured to transport fluid from the first cooling path to the second cooling path.
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