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    • 3. 发明授权
    • Agitation apparatus
    • 搅拌装置
    • US07383607B2
    • 2008-06-10
    • US10529250
    • 2003-09-09
    • Mark Andrew Johnson
    • Mark Andrew Johnson
    • A47L5/14A47L5/00A47L9/04A47L9/06
    • A47L9/0461B08B5/02
    • An agitation apparatus which is suitable for use in a cleaning head of a vacuum cleaner includes first and second flow paths. Each of these flow paths has a resonant cavity and an inlet/outlet port which joins the cavity to a space within the cleaning head. A generator, such as a loudspeaker with a diaphragm, generates an alternating pressure wave between the ports. Pressure waves are emitted from one of the ports in an anti-phase relationship with the pressure waves from the other of the ports, thus reducing operating noise. Due to both sides of the generator or diaphragm being exposed to an equal static pressure, the generator operates more reliably. A plurality of these arrangements can be provided across the cleaning head, and a part of the agitation apparatus, such as the driver, can be mounted on the main body of the vacuum cleaner.
    • 适用于真空吸尘器的清洁头的搅拌装置包括第一和第二流路。 这些流动路径中的每一个具有共振腔和将空腔连接到清洁头内的空间的入口/出口。 诸如具有隔膜的扬声器的发生器在端口之间产生交流压力波。 压力波从其中一个端口以与来自另一个端口的压力波反相关系发射,从而减少操作噪声。 由于发电机或隔膜的两侧暴露于相等的静压力,发电机操作更可靠。 可以在整个清洁头上设置多个这样的布置,并且诸如驱动器的搅拌装置的一部分可以安装在真空吸尘器的主体上。