Soundproof structure and soundproof unit
US11756521B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2021 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Apr 25, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B1/86
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Provided are a soundproof structure and a soundproof unit that can be reduced in size and thickness in the soundproof structure using Helmholtz resonance. The soundproof structure that includes a housing forming a space therein and having a through hole that allows the space to communicate with an outside, and generates Helmholtz resonance by the space and the through hole, the soundproof structure includes a rear surface plate disposed at a position overlapping the through hole on the space side as viewed from a penetrating direction of the through hole, in which assuming that a diameter of the through hole is Φ and a distance from the rear surface plate to an opening surface of the through hole on the space side is d, d≤Φ is satisfied and d≤6 mm is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.