SOUND-PROOF, FLOW-PASSABLE, AND THERMAL CONDUCTION-ENHANCED ACOUSTIC METAMATERIAL UNIT, COMPOSITE STRUCTURE, AND MANUFACTURING

WIPO Patent Application WO/2017/181341

A1

A sound-proof, flow-passable, and thermal conduction-enhanced acoustic metamaterial structural unit (1), comprising a frame (2), a constraining member (3) disposed in the frame (2), and a membrane (6) covering at least one of an upper surface or a lower surface based on the frame (2). The constraining member (3) and the membrane (6) are both provided with at least one hole (4, 7) therein. Also provided in the present invention are an acoustic metamaterial composite plate and composite structure comprising the acoustic metamaterial structural unit, and a frequency adjustment method and assembly method. The structural unit has better sound insulation performance over a wide frequency band than conventional perforated plates or micro-perforated plates, and ensures smooth passage of a sufficient amount of a thermal flow, air flow, or liquid flow. In addition, the structural unit increases, by means of local vibration in the unit generated from excitation of acoustic waves on the structure thereof, a heat diffusion rate of a fluid medium on two sides of the hole and a convection heat exchange rate. The acoustic metamaterial structural unit and an array composite structure thereof in the present invention are characterized by having a simple assembly process and stable operating performance.

HUANG LIFAN (CN)
WANG SHUGUANG (CN)

PCT/CN2016/079655

October 26, 2017

April 19, 2016

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HUANG LIFAN (CN)

G10K11/162; E04F13/075

CN105845121A	2016-08-10
CN105118496A	2015-12-02
CN104875430A	2015-09-02
CN202899504U	2013-04-24
CN102285154A	2011-12-21
JP2008248618A	2008-10-16
JP2010097147A	2010-04-30

HYLANDS LAW FIRM (CN)

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