Sound insulation structure 1 comprises elastic membrane part 2, elastic support wall part 3 standing on membrane part 2, and weight parts 4 standing on membrane part 2. Membrane part 2 is divided into a plurality of compartments 5 by support wall part 3. Weight parts 4 are located inside some or all of the plurality of compartments 5. In compartments 5 in which weight parts 4 are located, one weight part 4 is disposed in one compartment 5. Height H1 of support wall part 3 extending in a direction perpendicular to membrane part 2 is greater than height H2 of weight parts 4 extending in the direction perpendicular to membrane part 2. Each of weight parts 4 constitutes a spring mass resonator having spring part 4a having elasticity and mass part 4b having a mass greater than that of spring part 4a. Sound insulation structure 1 provides sufficient sound insulation, can be easily and stably mounted on a curved support surface, and is thin and lightweight. Soundproof structure 11 comprises soundproof plate part 10 and sound insulation part 9 that comprises sound insulation structure 1. At least one of membrane part 2 and support wall part 3 is integrally formed with or is joined with soundproof plate part 10, and soundproof plate part 10 and sound insulation part 9 are positioned side by side in a plane.
SOUND INSULATION STRUCTURE AND SOUNDPROOF STRUCTURE
SCHALLSCHUTZSTRUKTUR UND SCHALLSCHUTZSTRUKTUR
STRUCTURE D'ISOLATION SONORE ET STRUCTURE D'INSONORISATION
07.05.2025
Patent
Elektronische Ressource
Englisch
Soundproof structure and method of manufacturing soundproof structure
Europäisches Patentamt | 2022
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