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Sound absorption and noise reduction device for wheel, and wheel with same

A sound-absorbing, wheel-based technology, applied in vehicle parts, tire parts, transportation and packaging, etc., can solve problems such as failure to achieve noise reduction, shorten tire service life, affect tire heat dissipation, etc., to improve noise reduction ability, Effects of weight reduction and low cost

Pending Publication Date: 2021-06-18
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the present invention proposes a wheel sound absorption and noise reduction device, which can effectively reduce the resonance noise of the tire cavity, reduce the materials used in the sound absorption structure, and realize the light weight of the wheel sound absorption and noise reduction device. Quantification, which solves the technical problem that the wheel sound absorption and noise reduction device in the prior art cannot achieve the purpose of noise reduction and has a large volume, which affects the heat dissipation of the tire and shortens the service life of the tire

Method used

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  • Sound absorption and noise reduction device for wheel, and wheel with same
  • Sound absorption and noise reduction device for wheel, and wheel with same
  • Sound absorption and noise reduction device for wheel, and wheel with same

Examples

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Embodiment 1

[0104] A wheel sound absorption and noise reduction device 100, such as figure 2 As shown, it includes: a porous sound-absorbing matrix 1 and a plurality of sound-absorbing structures 2 .

[0105] which, combined with figure 2 and image 3 As shown, a plurality of sound-absorbing structures 2 are arranged on the porous sound-absorbing base 1 , and each sound-absorbing structure 2 has a sound-absorbing inlet 23 extending to the surface of the porous sound-absorbing base 1 .

[0106] like image 3 As shown, the sound-absorbing structure 2 includes a converging region and a sound-absorbing region.

[0107] The converging areas are set in the porous sound-absorbing matrix 1, and the cross-sectional dimensions of the converging areas are the same.

[0108] One end of the sound-absorbing area communicates with the converging area, and the other end of the sound-absorbing area forms a sound-absorbing inlet 23; when the sound-absorbing area extends from the converging area to th...

Embodiment 2

[0110] A wheel sound absorption and noise reduction device 100, on the basis of Embodiment 1, such as Figure 4 As shown, the sound-absorbing structure 2 is a sound-absorbing hole 21 , and one end of the sound-absorbing hole 21 forms a sound-absorbing inlet 23 .

[0111] The converging area is formed as a columnar first sound-absorbing hole 211, and the sound-absorbing area is formed as a second sound-absorbing hole 212 of an inverted curved tapered columnar body. The cross-sectional radius of the second sound-absorbing hole 212 is the same as the Depth is a power exponential function relationship.

Embodiment 3

[0113] A wheel sound absorption and noise reduction device 100, on the basis of Embodiment 2, such as Figure 4 As shown, the opposite side surfaces of the porous sound-absorbing matrix 1 respectively form a fixed surface 11 and a sound-absorbing surface 12, the fixed surface 11 is suitable for being attached to the inner surface of the tire 300, and a plurality of sound-absorbing holes 21 are directed from the fixed surface 11 to the sound-absorbing surface One side of 12 is extended, and a sound-absorbing inlet 21 is formed on the sound-absorbing surface 12 .

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Abstract

The invention discloses a sound absorption and noise reduction device for a wheel and the wheel with the sound absorption and noise reduction device. The sound absorption and noise reduction device for the wheel comprises a porous sound absorption base body and a plurality of sound absorption structures, wherein the plurality of sound absorption structures are arranged on the porous sound absorption base body, and each sound absorption structure is provided with a sound absorption inlet extending to the surface of the porous sound absorption base body; and each sound absorption structure comprises a convergence area and a sound absorption area, the convergence area is arranged in the porous sound absorption substrate and has the same cross section size, one end of the sound absorption area communicates with the other end of the convergence area to form the sound absorption inlet, and the cross section size is gradually increased when the sound absorption area extends from the convergence area to the surface direction of the porous sound absorption base body. According to the wheel sound absorption and noise reduction device for the wheel, the sound absorption inlets are formed in the porous sound absorption base body, the sound absorption inlets communicated with the sound absorption areas and the convergence areas, and tire cavity resonance noise generated in the running process of a vehicle can enter the convergence areas through the sound absorption inlets and is absorbed by the porous structure of the porous sound absorption base body; and thus, the noise reduction capability of the wheel sound absorption and noise reduction device is improved.

Description

technical field [0001] The invention belongs to the technical field of wheel manufacturing, in particular to a wheel sound absorption and noise reduction device and a wheel with the same. Background technique [0002] The road noise level of a vehicle is one of the important indicators to measure the quality of a vehicle. During the driving process of the vehicle, the excitation of the road surface causes the air in the wheel to vibrate and then generate resonance noise in the tire cavity. The tire cavity resonance noise seriously affects the comfort of the driver and passengers in the cabin. [0003] In the prior art, sound-absorbing structures such as micro-perforated plates and Helmholtz resonators are usually installed in the tire circumferential direction in order to reduce tire cavity resonance noise, but the above-mentioned sound-absorbing structures can only absorb sound wave energy of a narrow frequency , the absorption effect of the medium and low frequency sound ...

Claims

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Application Information

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IPC IPC(8): B60C19/00
CPCB60C19/002
Inventor 刘献栋鲍岳单颖春梁浩鸣何田
Owner BEIHANG UNIV