一种适用于可移动式空气压缩机通风散热口的超构消声器
By designing a superstructure silencer that integrates a resonant cavity and a resonant tube at the ventilation and heat dissipation vent of a portable air compressor, the problem of low-frequency noise reduction in traditional silencers under space-constrained conditions is solved, achieving a highly efficient and compact noise reduction effect, suitable for high-temperature and humid environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG UNIV
- Filing Date
- 2026-06-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing silencers are difficult to effectively reduce low-frequency noise in a limited space at the ventilation and heat dissipation vents of portable air compressors. Furthermore, traditional silencers are large in size and have high flow resistance, which cannot meet transportation and installation requirements.
A meta-muffler is designed by arranging silencing units in parallel at the ventilation and heat dissipation vents, integrating a resonant cavity and a resonant tube, optimizing the airflow channel structure, achieving wideband sound absorption, ensuring a flow ratio greater than 52%, and providing high-efficiency silencing performance.
While ensuring ventilation performance, it achieves high-efficiency noise reduction over a wide frequency band, with a muffler insertion loss of 10 dBA/m per unit length and 1000 dBA/m3 per unit volume. It also features a compact structure, high temperature resistance, moisture resistance, and mildew resistance, making it suitable for portable air compressors.
Smart Images
Figure CN122407348A_ABST