| 摘要 |
PROBLEM TO BE SOLVED: To provide a silencer capable of effectively silencing low-frequency noise at low initial cost and running cost.SOLUTION: In the silencer for a structure in which a noise generation unit 1 for generating noise by vibration is positioned in a space surrounded by a housing 2, one edge side of a phase inverse transmission mechanism 6 for transmitting vibration of the noise generation device 1 by inverting a phase of the vibration, is connected to the housing 2, and a housing face of the housing 2 which is vibrated by the noise generation unit 1 is vibrated with a reverse phase through the phase inverse transmission mechanism 6, and thereby, transmission of sound due to the housing 2 is blocked for silencing. |
