Title:
吸音装置及び該吸音装置を備えた車輪
Document Type and Number:
Japanese Patent JP6922039
Kind Code:
B2
Abstract:
The present invention relates to a sound absorber and a wheel having the same. The sound absorber (10) is configured as a rectangular hexahedral box and forms a porous double-layer Helmholtz resonance sound absorbing structure, at the same time, the sound absorber (10) in the form of a box forms a structural resonance sound absorbing device itself, and the first-order natural mode frequency of the device is identical to that of a wheel air chamber (30). When the box-type sound absorbing structure is assembled in a wheel, double functions of absorbing acoustic resonance of the wheel air chamber under the organic combination of Helmholtz resonance sound absorption and structural resonance sound absorption can be realized.
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Inventors:
Xu Sebun
▲陳▼▲銘▼博
李明▲れい▼
Yellow soldier
胡▲鉄▼峰
▲馮▼▲樹▼▲偉▼
王大▲東▼
▲劉▼▲偉▼東
▲陳▼▲銘▼博
李明▲れい▼
Yellow soldier
胡▲鉄▼峰
▲馮▼▲樹▼▲偉▼
王大▲東▼
▲劉▼▲偉▼東
Application Number:
JP2020107546A
Publication Date:
August 18, 2021
Filing Date:
June 23, 2020
Export Citation:
Assignee:
CITIC Dicastal Co.,Ltd
International Classes:
G10K11/172; B60B21/12
Domestic Patent References:
| JP2014226990A |
Foreign References:
| KR1020200056037A | ||||
| CN111105774A |
Attorney, Agent or Firm:
Murai Koji
Husband
Husband