Sound absorption and noise reduction device based on ferroelectric materials

• Main Authors: WANG ZHENYU, JIN FANGYIN, WANG LINXIANG
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2010
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION

The utility model relates to a device which utilizes ferroelectric materials to absorb the outside noise. The existing acoustic celotex boards have the defects of large thickness and low noise reduction efficiency. In the utility model, a plurality of cantilever beams are arranged at the inside of a front end outer plate along the horizontal direction and the vertical direction at an equal distance, wherein a ferroelectric film is arranged at the center of the upper surface of each cantilever beam, one end of the cantilever beam is vertically and fixedly arranged with the front end outer plate, and the other end thereof is vertically and fixedly arranged with a capture soundwave plate which is a platy square plate, the side length of the square is smaller than the space between two adjacent cantilever beams, and all the capture soundwave plates are arranged on one plane which is parallel to the front end outer plate; the cantilever beams, the ferroelectric films and the capture soundwave plates are arranged o