To provide a sound absorption agitating device that performs the absorption of sounds propagating in the air and air agitation.SOLUTION: A passage member 10 has a passage through which air flows. A fine perforation board 20 is a tabular member where a plurality of fine through holes 21 are bored, and is provided so as to have: one surface which is engaged in an air-flowing field 11 of the passage; and the other surface which faces an inner wall surface 13 of the passage member 10 through an air layer 12 with a predetermined thickness. The air flowing through the through holes 21 generates viscous attenuation effect. The plurality of through holes 21 are arranged linearly in a direction orthogonal to a center line CL of the passage.SELECTED DRAWING: Figure 1
【課題】空気中を伝播する音の吸収および空気の撹拌を行う吸音攪拌装置を提供する。【解決手段】通路部材10は、空気の流れる通路を有する。微細穿孔板20は、複数の微細な貫通孔21が穿たれた板状の部材であって、一方の面が通路のうち空気の流れ場11に臨み、他方の面が一定厚みの空気層12を介して通路部材10の内壁面13と対向するように設けられ、貫通孔21を通過する空気により粘性減衰作用を発生させる。そして、複数の貫通孔21は、通路の中心線CLに対し直交する方向に直線状に配置されている。【選択図】図1
SOUND ABSORPTION AND AGITATION DEVICE
吸音攪拌装置
2021-02-15
Patent
Electronic Resource
Japanese
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / 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 |
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