Schalldämpfungsvorrichtung für Telekommunikationsschränke

Details

Veröffentlichungs-Nr.

EP4741728

Anmeldetag

11. November 2025

Veröffentlichung

13. Mai 2026

Rechtsraum

EP

Abstract

The present application is directed to an acoustic attenuation device adapted for use in a telecommunications cabinet. The device includes a housing, a volume matrix having a main body divided into a plurality of chambers, an aperture plate having a plurality of opening arrangements, each opening arrangement aligned with a respective chamber of the volume matrix, a pressure plate coupled to the housing with the volume matrix and aperture plate secured therebetween, and an acoustically transparent filter held against the pressure plate. The pressure plate and the housing are configured to apply pressure to volume matrix and aperture plate sandwiched therebetween to create a tight seal, and the opening arrangements in combination with a corresponding chamber create a plurality of attenuators configured to match one or more dominant frequencies of one or more cooling fans within the cabinet such that the resonant frequency emanating from each attenuator have substantial phase inversion of the dominant frequencies, thereby cancelling noise emanating from the telecommunications cabinet.

Anmelder

Firma

Outdoor Wireless Networks LLC

Land

🇺🇸 USA