The invention provides an independent sound area headrest which comprises a headrest body and a sound radiation system, the sound radiation system comprises an acoustic transducer and a sound dipole which are fixed to the headrest body and are mutually independent, the acoustic transducer is used for radiating sound to a designated area, and the sound dipole is used for radiating sound to the designated area. The acoustic dipole comprises a first shell fixed to the headrest body, a first sound production unit and a second sound production unit, the first sound production unit and the second sound production unit are fixed in the first shell and distributed oppositely at intervals, the first sound production unit and the second sound production unit radiate sound in at least two directions, and the sound radiated by the first sound production unit and the sound radiated by the second sound production unit have phase difference. According to the invention, the acoustic transducer and the acoustic dipole cooperate with each other, so that vector superposition can be carried out on the sound of the target area outside the specified area, the sound pressure level difference between the specified area and the target area is maximized, and the sound leakage of the headrest sound equipment is reduced, thereby achieving a better sound partition or sound isolation effect, and improving the user experience.
本发明提供了一种独立音区头枕,包括头枕本体和声辐射系统,声辐射系统包括固定于头枕本体且相互独立设置的声学换能器和声偶极子,声学换能器用于向指定区域辐射声音,声偶极子包括固定于头枕本体的第一外壳、以及固定于第一外壳内且相对间隔分布的第一发声单元和第二发声单元,第一发声单元和第二发声单元均朝至少两个方向辐射声音,且第一发声单元和第二发声单元辐射的声音存在相位差。本发明的声学换能器和声偶极子相互配合,可以对指定区域外的目标区域的声音进行矢量叠加,实现最大化指定区域区域的和目标区域的声压级差,减小头枕音响的声音外泄,从而达到较好的声音分区或声音隔离效果,提升用户体验。
Headrest with independent sound area
一种独立音区头枕
29.11.2024
Patent
Elektronische Ressource
Chinesisch