High-performance automobile sound insulation pad

By using a combination design of high elastic rubber material, composite sound insulation layer, composite sound absorption layer and protective layer in the automotive sound insulation pad, the existing automotive sound insulation pads have solved the shortcomings in durability, sound insulation and sound absorption capabilities, achieving stronger sound insulation effect and longer service life.

CN222645946UActive Publication Date: 2025-03-21WUXI DUOLUNDUO PLASTIC CO LTD
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Patent Information

Application Number
CN202421280873.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-06
Publication Date
2025-03-21
Estimated Expiration
2034-06-06

AI Technical Summary

Technical Problem

The existing car sound insulation pads have shortcomings in terms of durability, sound insulation and sound absorption capabilities, which are difficult to meet consumers' high requirements for car comfort.

Method used

The structural design includes a substrate layer, a high elastic rubber material, a composite sound insulation layer, a composite sound absorption layer and a protective layer. The sound insulation and sound absorption effect are improved through the combination of materials such as polymer foam layer, damping layer, foamed aluminum layer and glass wool layer, and the wear resistance is improved through the protective layer of polyester cloth and plastic film.

Benefits of technology

It significantly improves the sound insulation and sound absorption effect inside the car, extends the service life of the sound insulation pad, and enhances its wear resistance.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of automobile acoustic sound insulation systems, in particular to a high-performance automobile sound insulation pad which comprises a base material layer, a composite sound insulation layer is arranged above the base material layer and used for improving the sound insulation effect and reducing propagation of sound waves, and a composite sound absorption layer is arranged above the composite sound insulation layer and used for absorbing sound waves. The composite sound-absorbing layer is used for absorbing residual sound waves and reducing echoes and noise, an upper protection layer is arranged above the composite sound-absorbing layer, lateral protection layers which are folded downwards and wrap the base material layer, the composite sound-insulating layer and the composite sound-absorbing layer are arranged on the two sides of the upper protection layer, a lower protection layer is arranged at the lower end of the base material layer, and the lower protection layer is arranged at the lower end of the base material layer. And the lower end of the lateral protection layer covers the outer edge of the lower end of the base material layer.
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