To provide a vehicle coil unit capable of reducing leakage magnetic flux in non-contact power transmission and improving a coupling coefficient without requiring a change to the shape of a vehicle such as lowering the ground clearance.SOLUTION: A vehicle coil unit 10 includes a frame-shaped subframe 11 fixed to the lower part of a vehicle body, a coil 15 that is integrally arranged in an annular manner below the subframe 11 along the subframe 11 and receives AC power contactlessly transmitted from a power transmission device, and a core member 12, and the core member 12 is disposed between the subframe 11 and the coil 15, and is made of a material having higher magnetic permeability than the subframe 11.SELECTED DRAWING: Figure 1

    【課題】例えば地上高を低くする等の車両形状の変更を必要とすること無しに、非接触電力伝送での漏洩磁束を低減し、結合係数を向上させることができる車両用コイルユニットを提供する。【解決手段】車両用コイルユニット10は、車体の下部に固定される枠状のサブフレーム11と、サブフレーム11の下方で一体的にサブフレーム11に沿って環状に配置されるとともに、送電装置から非接触で伝送される交流電力を受け取るコイル15と、コア部材12とを備える。コア部材12は、サブフレーム11とコイル15との間に配置されるとともに、サブフレーム11よりも透磁率が大きい材料によって形成される。【選択図】図1


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    Title :

    VEHICLE COIL UNIT


    Additional title:

    車両用コイルユニット


    Contributors:

    Publication date :

    2024-02-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H01F MAGNETS , Magnete / B62D MOTOR VEHICLES , Motorfahrzeuge / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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