PROBLEM TO BE SOLVED: To provide a duct device which has sound absorption effect and dust collection effect.SOLUTION: A duct device 30 is attached to the upstream side of a fan which feeds cooling air to a battery and includes: a cylindrical casing 31; and a porous sound absorption material 37 filling the casing 31. Multiple air passages 32 to 36 allowing communication between the upstream side and the downstream side are formed at the sound absorption material 37, and at least one of the multiple air passages 32 to 36 is disposed in a spiral form relative to a center line 39 of the casing 31 extending in a longitudinal direction of the casing 31. The structure causes dust to be pressed to the porous sound absorption material 37 and collected and absorbs noise of the fan when the cooling air spirally flows.SELECTED DRAWING: Figure 2

    【課題】吸音効果と集塵効果とを合わせ持つダクト装置を提供する。【解決手段】バッテリに冷却空気を送給するファンの上流側に取り付けられるダクト装置30であって、円筒状のケーシング31と、ケーシング31の内部に充填された多孔質の吸音材37とを含み、吸音材37には、上流側と下流側との間を連通する複数の空気流路32〜36が形成され、複数の空気流路32〜36の中の少なくとも1つがケーシング31の長手方向に延びるケーシング31の中心線39に対して螺旋状に配置される。これにより、冷却空気が螺旋状に流れるときに、塵埃が多孔質の吸音材37に押し付けられて捕集されると共に、ファンの騒音も吸収される。【選択図】図2


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    Title :

    DUCT DEVICE


    Additional title:

    ダクト装置


    Contributors:

    Publication date :

    2018-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F24F Klimatisierung , AIR-CONDITIONING



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