Helium gas sound insulation board

Abstract

The invention relates to a helium gas sound insulation board, which comprises a helium gas coating body arranged in the middle, an upper aluminum plate and a lower aluminum plate which are arranged symmetrically on both sides of the helium gas coating body, wherein the helium gas coating body is a plate-like inflatable bag which is enclosed by an elastic coating film and has a sealed inflatable inner cavity, the inner cavity of the helium gas coating body is filled with helium gas, a plurality of holes penetrating two sides of the helium gas coating body are formed in the helium gas coating body, an elastic supporting body is inserted in each hole, and two end parts of each elastic supporting body are adhered to the inner walls of the upper aluminum plate and the lower aluminum plate. The helium gas sound insulation board has the beneficial effects that: the helium gas coating body clamped in the middle can optimize fireproof and anti-detonating properties of the sound insulation board, and can ensure high bending and compression resistance; the sound insulation volume can be significantly increased on the premise of not adding weight and thickness, and is especially suitable for sound insulation and noise reduction of some small and medium-sized electromechanical equipment, household appliances and the like.

Description

technical field [0001] The invention belongs to the field of noise control and relates to a helium sound insulation board. Background technique [0002] At present, the most common sound insulation panel structures on the market mainly include the following three types: (1) wooden plywood, aluminum honeycomb sandwich panel and various solid panels derived from the two, which are mostly used in railway vehicles, ships and aircraft And some large-scale electromechanical equipment and other sound insulation fields; (2) Insulating glass with multi-layer glass as the base material and a vacuum or a specific gas layer in the middle is mostly used in the construction and automobile industries. For example: CN201310474877.X introduces a kind of double-layer insulating glass, which uses two layers of tempered glass, and inert gas or nitrogen is filled in the middle, which has the advantages of good sound insulation, durability, etc.; CN 201520803062.6 introduces a kind of super vacuu...

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Problems solved by technology

[0003] The above first and second sound insulation board structures are usually heavy and thick, and are not very suitable for limited space and weight limit. Although the third structure is light and thin, its sound insulation effect is average.

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