Enhanced rose-type wind noise reduction device

• Main Authors: JI PEIFENG, TENG PENGXIAO, YANG JUN, LYU JUN
• Format: Patent
• Language: Chinese; English
• Published: 28.07.2020
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHYSICS; SOUND-PRODUCING DEVICES; TESTING

The invention discloses an enhanced rose-type wind noise reduction device. The device comprises a plurality of first-stage pipes, a first-stage synthesis cavity and a plurality of second-stage pipe arrays, wherein the second-stage pipe arrays are communicated with the first-stage pipes through second-stage synthesis cavities. The enhanced rose-type wind noise reduction device is characterized in that each second-stage pipe array comprises a plurality of second-stage pipes which are distributed along a circumferential direction by taking the corresponding secondary synthesis cavity as the center of a circle; each second-stage pipe extends outwards to be communicated with at least three air inlet pipes; and the air inlet pipes are short pipes provided with air inlets. Compared with the performance of a traditional rose-type wind noise reduction device, the noise reduction performance of the enhanced rose type wind noise reduction device is kept unchanged; the number and the length of laid pipelines are reduced,