Buried structure of power supply equipment

By embedding the power supply device with a shorter transverse protective case and filler material, the device withstands external forces, maintaining efficient power transmission and long-term usability on roads with varying traffic conditions.

JP7868392B2Active Publication Date: 2026-06-02OHBAYASHI GUMI LTD
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Patent Information

Authority / Receiving Office
JP Β· JP
Patent Type
Patents
Current Assignee / Owner
OHBAYASHI GUMI LTD
Filing Date
2022-05-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Burying power supply coils and resonant capacitors in the road surface for non-contact power transmission to moving vehicles leads to decreased power transmission efficiency and vulnerability to external forces like vertical loads and high temperatures, affecting long-term usability.

Method used

The power supply device is embedded in the travel path with a protective case for the resonant capacitor that is shorter transverse to the travel path, filled with a filler material, and positioned near the road surface, using materials like fiber-reinforced cement mortar to distribute vertical loads and dissipate heat.

Benefits of technology

This configuration minimizes the impact of external forces on the resonant capacitor, ensuring long-term power transmission efficiency and usability on various road types, including busy public roads and expressways.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To bury, near a road surface of a travel route, a power supply device supplying power in a non-contact manner to a power receiving device provided in a movable body moving on the travel route, while ensuring long-term commonality.SOLUTION: A burying structure for a power supply device buries, in a travel route, a power supply device supplying power in a non-contact manner to a power receiving device provided in a movable body moving on the travel route. The power supply device has a protective case that stores a resonance capacitor connected in series to a power supply coil, and the protective case is formed to have a length in a transverse direction of the travel route shorter than a coil case that stores the power supply coil, the protective case being buried in the travel route.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • Wireless ground power interface device

    CN209515380U

  • Apparatus and method for supplying power in non-contact manner

    JP2010233442A

  • Non-contact power supply system

    JP2015033166A

  • Receiver

    JP2015153863A

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    JP2019022265A