To provide a vehicular sound absorption structure which enables improvement of space efficiency of a sound absorption member and improvement of sound absorption performance while achieving reduction of manufacturing costs.SOLUTION: A vehicular sound absorption structure includes: a first vent hole 24 provided on an inner wall 22 in a passenger compartment; and a second vent hole 26 provided on a rear outer panel 20 forming an outer wall of a vehicle body. A ventilation space 28 which allows the first vent hole 24 and the second vent hole 26 to communicate with each other is provided between the inner wall 22 of the passenger compartment and the rear outer panel 20. A sound absorption member 30 which encloses the second vent hole 26 is disposed in the ventilation space 28. The sound absorption member 30 is formed by a cylinder body 34 in which a hole penetrates in an interior-exterior direction.SELECTED DRAWING: Figure 2
【課題】吸音部材のスペース効率を高めると共に、製造コストを低減して吸音性能を向上させること。【解決手段】車室の内壁22に設けられた第1の通気孔24と、車体の外壁を構成するリヤアウタパネル20に設けられた第2の通気孔26とを備え、車室の内壁22とリヤアウタパネル20との間には、第1の通気孔24と第2の通気孔26とを連通させる通気空間28が設けられ、この通気空間28には、第2の通気孔26を囲繞する吸音部材30が配置され、この吸音部材30は、内外方向に向けて貫通する筒体34で構成されている。【選択図】図2
VEHICULAR SOUND ABSORPTION STRUCTURE
車両の吸音構造
2022-04-21
Patent
Electronic Resource
Japanese