| 发明名称 | Vehicle sound absorption structure | ||
| 摘要 | A vehicle sound absorption structure has: a recessed cell that has an opening on one end of the cell; a divider that is provided within the cell and that divides an acoustic wave entering the cell from the opening into two acoustic waves; reflectors that reflect one of the two acoustic waves divided at the divider and reflect the other acoustic wave respectively toward the opening, and that generate a phase difference between the one acoustic wave and the other acoustic wave; and an interfering portion that is provided within the cell and that causes the one acoustic wave and the other acoustic wave, which have been respectively reflected at the reflectors, to interfere with each other. | ||
| 申请公布号 | US8973978(B2) | 申请公布日期 | 2015.03.10 |
| 申请号 | US201213984119 | 申请日期 | 2012.02.01 |
| 申请人 | Toyota Jidosha Kabushiki Kaisha | 发明人 | Ide Toyoka |
| 分类号 | B60R13/08;G10K11/175 | 主分类号 | B60R13/08 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 1. A vehicle sound absorption structure comprising: a recessed cell that has an opening on one end thereof; a divider that is provided within the cell and that divides an acoustic wave entering the cell from the opening into two acoustic waves; reflectors that reflect one of the two acoustic waves divided at the divider and reflect the other acoustic wave respectively toward the opening, and that generate a phase difference between the one acoustic wave and the other acoustic wave; an interfering portion that is provided within the cell and that causes the one acoustic wave and the other acoustic wave, which have been respectively reflected at the reflectors, to interfere with each other; and a cover member that covers the opening and which has a slit provided on an extension of the divider. | ||
| 地址 | Toyota JP | ||