Air inlet silencer

Abstract

The utility model discloses an air inlet silencer, and belongs to the technical field of silencing devices. An air inlet silencer comprises a silencer body, an air inlet channel is arranged in the silencer body, and the air inlet silencer further comprises a plurality of sets of micropore acoustic board resistive silencing pieces which are all fixedly connected in the silencer body and are arranged at equal intervals. The micro-pore acoustic board resistive silencing sheet is used for changing the volume and the shape of the air inlet channel, micro-pores are formed in the micro-pore acoustic board resistive silencing sheet, the pore diameter is 1 mm, and the micro-pores have the resistant silencing capacity and the sound absorption effect; according to the utility model, through the arrangement of the resistive silencing sheets of the microporous acoustic board, the silencer has higher silencing capacity in a broadband range, is smaller in size when meeting the same noise reduction and ventilation requirements, and can effectively solve the problems of narrow silencing frequency band and large required space of the traditional silencer.

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