A sound insulation structure which can suppress increase in weight and increase in cost and which can improve sound insulation performance is provided. The sound insulation structure (10) includes a mass part (11) and a plurality of spring parts (12). The mass part is arranged to be spaced from a compartment member (5) that compartmentalizes an internal space of a structure body and an outside. Atleast part of the mass part has a flat surface shape. The spring part is arranged on a side facing the compartment member in the mass part. The spring part includes: a hollow film material (14) having airtightness and flexibility; and a gas (15) encapsulated within the film material. The film material includes a recess part (14b) on one surface (14c) which is at least one of surfaces on the compartment member side and the mass part side.
本发明提供能够抑制重量增加、成本的上升并且提高隔音性的隔音结构。隔音结构(10)具备质量部(11)和多个弹簧部(12)。质量部相对于对构造体的内部空间和外部进行划分的划分构件(5)隔开间隔地配置,且在至少一部分具有平面形状。弹簧部配置于在质量部中与划分构件对置的一侧。弹簧部具有:中空的膜材(14),其具有气密性及挠性;以及气体(15),其被封入到膜材的内部。膜材在所述划分构件侧和所述质量部侧中的至少一面(14c)具有凹部(14b)。
SOUND INSULATION STRUCTURE
隔音结构
2020-09-22
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / E04B Allgemeine Baukonstruktionen , GENERAL BUILDING CONSTRUCTIONS / E04F FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS , Ausbau von Bauwerken, z.B. Treppen, Fußböden |