To obtain a sub-woofer which can reduce an influence caused by the intrusion of noise.SOLUTION: A sub-woofer 100 comprises: a sound output part 110 arranged at an interior panel 10 of a vehicle 8, and outputting a sound; a housing 120 arranged in a clearance between the interior panel 10 and a frame of the vehicle 8, and extending toward a penetration hole 14b which is formed at the frame from the sound output part 110; and a labyrinth part 20 arranged inside the housing 120. An opening part 200 opened at the outside of a rear frame 14 via the penetration hole 14b is formed at an end part 122a of the housing 120 at a side opposite to the sound output part 110 side. The labyrinth part 20 comprises a plurality of protrusions 21 which are arranged in zigzag so that a sound pressure level in a frequency band different from a frequency band in which the sound output part 110 generates a sound out of a frequency band of a sound which intrudes into the housing 120 via the opening part 200 is lowered.SELECTED DRAWING: Figure 5

    【課題】騒音の浸入による影響を低減できるサブウーファを得ること。【解決手段】サブウーファ100は、車両8の内装パネル10に設けられ音を出力する音出力部110と、内装パネル10と車両8のフレームとの間の隙間に設けられ、音出力部110からフレームに形成される貫通孔14bに向かって伸びるハウジング120と、前記ハウジング120の内側に設けられるラビリンス部20と、を備える。ハウジング120の前記音出力部110側とは反対側の端部122aには、貫通孔14bを介してリアフレーム14の外側に開口する開口部200が形成される。ラビリンス部20は、開口部200を介してハウジング120内に浸入した音の周波数帯域の内、音出力部110で発生する音の周波数帯域とは異なる周波数帯域の音圧レベルを低下させるように千鳥状に配列される複数の突起21を備える。【選択図】図5


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    Title :

    SUB-WOOFER


    Additional title:

    サブウーファ


    Contributors:
    SUGIYAMA YUKIYA (author) / USAMI JUN (author) / SASAKI AKIRA (author)

    Publication date :

    2020-09-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler



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