Silencing tire cover for carriage noise avoidance

A sound-absorbing, carriage-carrying technology that is applied to vehicle components, superstructures, and sub-assemblies of the superstructure. It can solve the problems of tire noise without a separate noise-cancelling design, and achieve the effects of reducing noise, improving user experience, and reducing noise pollution.

Inactive Publication Date: 2014-08-13
CHENGDU LINGCHUAN SPECIAL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] One of the main sources of automobile noise is tire noise, which accounts for a large proportion of the overall noise of motor vehicles. At present, the means of reducing tire noise usually focus on the source of the

Method used

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  • Silencing tire cover for carriage noise avoidance
  • Silencing tire cover for carriage noise avoidance

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Embodiment Construction

[0018] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0019] Such as figure 1 Shown is a cross-sectional view of the noise-absorbing tire cover for the wave car of the present invention, including the baffle plate 3 and the fender 5 installed on the baffle plate, and also includes the Noise-absorbing layer 4, the sound-absorbing layer is located inside the stop plate, and the contour wall of the sound-absorbing layer is wavy. The curved surface of the arc surface presents alternately arranged crests 41 and troughs 42. The contour wall of the sound-absorbing layer is made of metal, usually aluminum or carbon steel. The surface of the contour wall of the sound-absorbing layer is roughened, and the surface roughness is greater than 80um. The distance between the crests 41 is in the range of 2cm-18cm, the height difference between t...

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Abstract

The invention discloses an automobile silencing tire cover which comprises a stopping blade plate and a mud guard installed on the stopping blade plate. The automobile silencing tire cover further comprises a silencing layer arranged between the mud guard and the stopping blade plate and positioned on the inner side of the stopping blade plate, the contour of the silencing layer is a wave-shaped surface, the wave shape comprises crests and troughs which are alternately arranged along the cambered surface of the inner side of the stopping blade plate in a space, a contour wall of the silencing layer is subject to rough treatment, a cavity is formed between the contour wall of the silencing layer and the mud guard, a plurality of silencing holes are distributed in slope surfaces between the crests and the troughs of the silencing layer, and a sound absorption coating is arranged inside the contour wall of the silencing layer. In sound wave contrast tests of the silencing tire cover for carriage noise avoidance, the average noise reduction effect measured inside a carriage is 6.5 dB, the tire noise is reduced from the aspect of the transmission route of the tire noise, noise pollution inside the carriage can be obviously reduced particularly in the silencing direction, and the use feeling is improved.

Description

technical field [0001] The invention relates to a sound-absorbing tire cover for avoiding noise in a vehicle compartment. Background technique [0002] One of the main sources of automobile noise includes tire noise, which accounts for a large proportion of the overall noise of motor vehicles. At present, the means of reducing tire noise usually focus on the source of the noise source, that is, the design of the tire, such as tire tread The tire is equipped with a sound-absorbing material layer, and there is almost no separate noise-absorbing design for the transmission of tire noise. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sound-absorbing tire cover for noise-avoidance in the cabin, which reduces tire noise from the transmission path of tire noise, especially in the noise-absorbing direction. Noise pollution inside the compartment improves user experience. [0004] The technical solution adopted by t...

Claims

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Application Information

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IPC IPC(8): B62D25/18B60R13/08
Inventor 汪庭文叶维敏张军何晓鸣杨军
Owner CHENGDU LINGCHUAN SPECIAL IND
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