Invention Application
- Patent Title: SOUNDPROOF STRUCTURE
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Application No.: US15822638Application Date: 2017-11-27
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Publication No.: US20180082668A1Publication Date: 2018-03-22
- Inventor: Shogo YAMAZOE , Shinya HAKUTA , Tadashi KASAMATSU , Masayuki NAYA
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2015-124689 20150622; JP2016-090493 20160428
- Main IPC: G10K11/16
- IPC: G10K11/16

Abstract:
There is provided a soundproof structure which is light and thin, which has air permeability so that wind and heat can pass therethrough and accordingly no heat accumulates on the inside, and which is suitable for equipment, automobiles, and household applications. The soundproof structure has one or more soundproof cells. Each soundproof cell includes a frame having a through-hole through which sound passes, a film fixed to the frame, an opening portion configured to include one or more holes drilled in the film, and a weight disposed on the film. The soundproof structure has a first shielding peak frequency, which is determined by the opening portion drilled in the film and at which a transmission loss is maximized, on a lower frequency side than a first natural vibration frequency of the film of each soundproof cell and a second shielding peak frequency, which is determined by the weight and at which a transmission loss is maximized, on a higher frequency side than the first natural vibration frequency of the film, and selectively insulates sound in a predetermined frequency band centered on the first shielding peak frequency and sound in a predetermined frequency band centered on the second shielding peak frequency.
Public/Granted literature
- US10854183B2 Soundproof structure Public/Granted day:2020-12-01
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