Isolated washing machine muffler

Abstract

The utility model discloses an isolation type washing machine silencer relates to washing machine noise reduction technical field. Including the silencer main cylinder, its one end connects the bent type sound attenuation buffer part, and the component front end is equipped with the sound attenuation impedance adjusting device. The device both ends form the expansion, the contraction chamber structure, and the turbulent flow is caused when sound wave passes because of the flow velocity and the cross section area mutation, makes the phase difference of sound wave at both ends, and after recombination passes through the interference cancellation and combines scattering reflection and weakens the noise. The bent type sound attenuation buffer part blocks vibration transmission through the geometric bending path, and absorbs vibration energy to reduce the risk of resonance. The sound attenuation impedance adjusting device is multistage sound attenuation structure, and the sound wave propagation characteristic is adjusted through the expansion and the contraction chamber alternative layout, covers low middle high frequency noise, realizes wideband sound attenuation. Through the vibration isolation and the phase difference sound elimination synergistic effect, solve traditional silencer vibration transmission remarkable, sound attenuation frequency band single and energy consumption unbalance problem, improve washing machine operation stability and noise reduction efficiency, prolong the life.

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