The invention discloses a vehicle-mounted headrest for silencing, a vehicle-mounted seat, a vehicle and a silencing method, and relates to the technical field of vehicle noise reduction. The pillow part is arranged on one side of the micro-perforated plate, and the pillow part is communicated with the micropores; the noise reduction cavity is formed in the other side of the micro-perforated plate, and the noise reduction cavity communicates with the pillow part through the micropores; and the adjusting device is used for adjusting the functional volume of the noise reduction cavity according to the target frequency determined by the rotating speed of the motor so as to adjust the noise reduction frequency. Silencing is carried out by utilizing the principle of a resonance sound absorber, the target frequency is obtained by collecting motor rotating speed signals and calculating, the function size of the noise reduction cavity is changed and the silencing frequency is adjusted through the adjusting device according to the target frequency, and the adjusting mode is simple, convenient and rapid. The problem that in the prior art, active adjustment is difficult to deal with noise of different frequencies or the active adjustment structure is complex is solved.
本发明公开了一种用于消音的车载头枕、车载座椅、车辆及消音方法,涉及车辆降噪技术领域,包括微穿孔板,其上开设有多个微孔;枕部,其设置在微穿孔板的一侧,枕部与微孔连通;降噪空腔,其设置在微穿孔板的另一侧,降噪空腔与枕部通过微孔连通;调节装置,其用于根据电机转速确定的目标频率,调整降噪空腔的功能体积,以调节消音频率。利用共振吸声器原理进行消音,通过采集电机转速信号,通过计算得出目标频率,通过调节装置根据目标频率改变降噪空腔的功能体积,调节消音的频率,调节方式简单,方便快捷。解决了现有技术中存在难以进行主动调节以应对不同频率噪音或者主动调节结构复杂的问题。
Vehicle-mounted headrest for silencing, vehicle-mounted seat, vehicle and silencing method
一种用于消音的车载头枕、车载座椅、车辆及消音方法
2023-07-18
Patent
Electronic Resource
Chinese
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