To provide soundproof cover structure for an automobile which can raise a sound absorption effect in a low frequency band.SOLUTION: Soundproof cover structure for an automobile comprises: a cover body 7 which is formed in a flat plate shape and arranged opposite to a noise source; a sound absorption material 8 which is provided on a side of the noise source of the cover body 7; and a back air layer 9 which is formed between the cover body 7 and the sound absorption material 8, in which the cover body 7 is provided with a plate-like rib 10 extending to a side of the sound absorption member 8 and to divide the back air layer 9 into a plurality of small chambers 11.SELECTED DRAWING: Figure 3
【課題】低周波数帯における吸音効果を高めることができる自動車用防音カバー構造を提供する。【解決手段】自動車用防音カバー構造は、板状に形成され騒音源に対向して配置されるカバー本体7と、カバー本体7の騒音源側に設けられる吸音材8と、カバー本体7及び吸音材8間に形成される背後空気層9とを備え、カバー本体7には、板状のリブ10が、吸音材8側に延びて設けられると共に、背後空気層9を複数の小部屋11に仕切るように設けられる。【選択図】図3
SOUNDPROOF COVER STRUCTURE FOR AUTOMOBILE
自動車用防音カバー構造
2021-10-11
Patent
Electronic Resource
Japanese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B62D MOTOR VEHICLES , Motorfahrzeuge |
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