To provide an on-vehicle woofer device which can reproduce low-pitched sound while achieving miniaturization and also can be efficiently arranged in a spare tire storage part or the like.SOLUTION: An on-vehicle woofer device 1 includes: a magnetic circuit; a diaphragm which is connected to the magnetic circuit; a speaker unit 20 which electrically drives the magnetic circuit, so as to vibrate the diaphragm and to generate a sonic wave; a Helmholtz resonator which is arranged on a side oriented by a first surface of the diaphragm and is connected to the speaker unit 20, and is constituted by a chamber space 52, an outer peripheral duct space 53, and an opening of a duct 14; a sealed container which is arranged on a side oriented by a second surface of the diaphragm, which is a rear surface of the first surface, is connected to the speaker unit 20, and constitutes a sealed space 51; and a through-hole 19 which has a tubular part which penetrates the Helmholtz resonator, the speaker unit 20, and the sealed container.SELECTED DRAWING: Figure 3

    【課題】小型化を図りつつ低音域の再生を実現し、且つスペアタイヤ収容部等へ効率よく設置可能な車載用ウーファー装置を提供する。【解決手段】車載用ウーファー装置1において、磁気回路と、磁気回路に接続される振動板と、磁気回路を電気的に駆動することにより振動板を振動させて音波を発生可能なスピーカユニット20と、振動板の第1面が指向する側であってスピーカユニット20に接続されるチャンバ空間52、外周ダクト空間53及びダクト14の開口により構成されるヘルムホルツ共鳴器と、第1面の裏面である振動板の第2面が指向する側であってスピーカユニット20と接続される密閉空間51を構成するための密閉容器と、ヘルムホルツ共鳴器、スピーカユニット20及び密閉容器を貫通する管状部を有する貫通孔19と、を備える。【選択図】図3


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    Title :

    ON-VEHICLE WOOFER DEVICE


    Additional title:

    車載用ウーファー装置


    Contributors:

    Publication date :

    2020-12-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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