Composite structure sound insulation window

Abstract

The invention provides a sound insulation window with a composite structure, which is installed in a wall opening between a reverberation chamber and an anechoic chamber and comprises an installation frame and a sound insulation window main body, wherein the installation frame and the sound insulation window main body are assembled into a whole, a test hole for installing a test component is arranged in the middle, and two fork truck holes for integrally loading and unloading are formed in the upper part; fork truck hole sound insulation components are movably embedded in the fork truck holes; and the sound insulation window main body is formed by compounding multiple layers of materials. The sound insulation window main body in the invention adopts a multi-layer structure to enable the transmitted sound to be attenuated many times, thereby greatly improving the sound insulation performance. The sound insulation window provided by the invention adopts an integral structure instead of the traditional spliced structure, so that the installation of the sound insulation window is more convenient.

Description

technical field [0001] The invention relates to a compound structure sound insulation window. Background technique [0002] At present, most of the sound insulation walls in NVH laboratories are block cement splicing structures, and the mass of a single block is large. The tooling received is different. Therefore, the sound insulation tooling needs to be replaced frequently. The heavy cement structure tooling prolongs the test cycle and increases the workload of the test, resulting in a waste of resources. Contents of the invention [0003] The object of the present invention is to provide a novel composite structure sound insulation window in order to solve the above problems. [0004] In order to achieve the above purpose, the present invention adopts the following technical solutions: a sound insulation window of composite structure, installed in the wall hole between the reverberation chamber and the anechoic chamber, for testing the sound insulation effect of the sou...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the sound insulation walls in NVH laboratories are block cement splicing structures, and the mass of a single block is large. The tooling is different, so the sound insulation tooling needs to be replaced frequently, and the heavy cement structure tooling prolongs the test cycle, increases the workload of the test, and causes a waste of resources

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