Title:
SOUND ABSORPTION AND BEARING INTEGRATED STRUCTURE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/193412
Kind Code:
A1
Abstract:
A sound absorption and bearing integrated structure (3) and a preparation method therefor. The sound absorption and bearing integrated structure (3) comprises first connection nodes (21) and perforated hollow rods connected to the first connection nodes (21), wherein the first connection nodes (21) are of a solid structure, and the connection positions between the first connection nodes (21) and the perforated hollow rods are smoothly transitioned by means of cambered surfaces; the first connection nodes (21) and the perforated hollow rods form a sound absorption unit (2), and the perforated hollow rod of one sound absorption unit (2) extends axially forwards from the first connection node (21), extends to be connected to the first connection node (21) of another sound absorption unit (2), or extends to intersect with the perforated hollow rod of another sound absorption unit (2) to form a second connection node (22); the number of perforated hollow rods connected to the second connection nodes (22) is not greater than the number of perforated hollow rods connected to the first connection nodes (21); and the perforated hollow rod comprises a rod body (1), a cavity (11) is provided inside the rod body (1), through holes (12) are provided in the rod body (1), the through holes (12) are in communication with the cavity (11), and the through holes (12) and the cavity (11) form a Helmholtz resonant cavity.
Inventors:
YANG FAN (CN)
GUO ZHENGMIAO (CN)
ZHAO JINFENG (CN)
LI PENGFEI (CN)
GUO ZHENGMIAO (CN)
ZHAO JINFENG (CN)
LI PENGFEI (CN)
Application Number:
PCT/CN2022/122037
Publication Date:
October 12, 2023
Filing Date:
September 28, 2022
Export Citation:
Assignee:
UNIV TONGJI (CN)
International Classes:
B22F10/00; G10K11/162; B22F10/20; B32B3/12; B32B15/01; G10K11/172
Foreign References:
| CN113103689A | 2021-07-13 | |||
| CN110560349A | 2019-12-13 | |||
| CN112112918A | 2020-12-22 | |||
| CN106652991A | 2017-05-10 | |||
| CN114203137A | 2022-03-18 | |||
| CN109441983A | 2019-03-08 | |||
| CN112848553A | 2021-05-28 | |||
| CN101373591A | 2009-02-25 | |||
| US20200202831A1 | 2020-06-25 |
Attorney, Agent or Firm:
BEIJING HENGLV INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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