To provide a sound absorption structure that uses a blow molding used in a vehicle, and is efficient.SOLUTION: A sound absorption structure 100 is arranged in a vehicle, and reduces noise in the space in the vehicle. The sound absorption structure 100 has a main body part 20 which is a blow molding, and a sound absorption member 30 which covers at least a part of an outer surface of the main body part 20. The sound absorption member 30 has a first uneven structure 40 having an uneven shape at least in part on an opposite surface 31 as a surface opposed to the main body part 20. Consequently, an air layer 400 is present between the main body part 20 and sound absorption member 30. Consequently, sound absorption performance is improved. Further, when the first uneven structure 40 is provided on the side of the sound absorption member, processing is easier and the design of the uneven structure is easier to change than when the uneven structure is provided on the side of the main body part 20.SELECTED DRAWING: Figure 5

    【課題】車両内で用いられているブロー成形品を利用した効率のよい吸音構造を提供する。【解決手段】この吸音構造100は、車両の内部に配置され、当該車両内の空間における騒音を低減するものである。吸音構造100は、ブロー成形品である本体部20と、本体部20の外表面の少なくとも一部を覆う吸音部材30とを有する。吸音部材30は、本体部20に対向する面である対向面31の少なくとも一部に、凹凸形状を有する第1凹凸構造40を有する。これにより、本体部20と吸音部材30との間に空気層400が介在する。その結果、吸音性能が向上する。また、吸音部材側に第1凹凸構造40を設ければ、本体部20側に凹凸構造を設ける場合と比べて、加工が容易であり、かつ、凹凸構造の設計変更を行いやすい。【選択図】図5


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    Title :

    SOUND ABSORPTION STRUCTURE


    Additional title:

    吸音構造


    Contributors:

    Publication date :

    2021-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F24F Klimatisierung , AIR-CONDITIONING / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES




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