PROBLEM TO BE SOLVED: To provide a vehicle power source noise reduction device capable of sufficiently reducing the noise leaking to the outside of a vehicle.SOLUTION: An engine noise reduction device 100 comprises a speaker 30 which is disposed in an engine room 2 in which an engine 10 for driving a vehicle 1 is accommodated, and generates cancellation sound with a phase opposite to noise, for reducing the noise emitted from the engine 10. The speaker 30 is disposed so that the cancellation sound is emitted in the direction along a projecting direction of the noise emitted from the engine 10, and toward opening parts 2f and 2g which intercommunicate between the engine room 2 and the outside of the vehicle.SELECTED DRAWING: Figure 2

    【課題】車外に漏れ出る騒音を十分に低減することが可能な車両動力源騒音低減装置を提供する。【解決手段】このエンジン騒音低減装置100は、車両1を駆動させるためのエンジン10が収容されるエンジンルーム2内に配置され、エンジン10から放射される騒音を低減する、騒音とは逆位相のキャンセル音を発生させるスピーカ30を備える。スピーカ30は、エンジン10から放射される騒音の放射方向に沿った方向で、かつ、エンジンルーム2と車外とを連通する開口部2fおよび2gに向かってキャンセル音を放射するように配置されている。【選択図】図2


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    Title :

    VEHICLE POWER SOURCE NOISE REDUCTION DEVICE


    Additional title:

    車両動力源騒音低減装置


    Contributors:
    ITO ATSUSHI (author)

    Publication date :

    2018-11-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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