Controllable sound absorption device

Controllable sound absorption device

  • CN 202,611,003 U
  • Filed: 06/04/2012
  • Issued: 12/19/2012
  • Est. Priority Date: 06/04/2012
  • Status: Active Grant
First Claim
Patent Images

1. controlled sound absorber;

  • It comprises base plate (1);

    The upper surface of said base plate (1) caves inward and is formed with cavity (2);

    The inwall of said cavity (2) is coated with sound absorber (3), it is characterized in that, the opening part of cavity (2) is provided with the shielding body (4) of the aperture area that can change cavity (2).

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