公开(公告)号：WO1989012132A1

公开(公告)日：1989-12-14

申请号：PCT/SE1989000288

申请日：1989-05-23

Applicant: AKTIEBOLAGET ELECTROLUX ,  CASTWALL, Lennart, Wilhelm ,  POIKONEN, Jorma, Kalevi ,  ALKUVAARA, Pekka, Olavi

Inventor： AKTIEBOLAGET ELECTROLUX

IPC: D06F37/22

CPC classification number: D06F37/225 ,  Y10T74/2109

Abstract: According to a method of balancing a container (10) which is rotating about an essentially horizontal axis, preferably a washing machine drum, the container is provided with cavities (15) evenly distributed along the periphery thereof and having openings (20) via which selectively liquid can be introduced in the respective cavity. A sensor (24) is provided for sensing vibrations caused by the rotation of the container and for emitting an electrical signal the magnitude of which is a measure of the magnitude of the vibrations. The container (10) is brought to rotate at a first rotational speed and the sensor signal is read. A predetermined amount of liquid is introduced in a randomly selected cavity (15) along the periphery of the drum. The sensor signal is again read and the value is compared with the preceding sensed value, wherein if the value is lower than the preceding one a new dose of the predetermined amount is introduced in the selected cavity while if the value is equal to or greater than the preceding one the predetermined amount is introduced in the immediate following cavity along the periphery. The described sequence is repeated until the sensor signal is lower than a predetermined, permissible value at which the container is brought to rotate at a second rotational speed, higher than the first one. The sequence described is repeated for different rotational speeds until the desired rotational speed has been reached and the sensor signal is lower than the predetermined value.

Abstract translation: 根据平衡围绕基本上水平轴线旋转的容器（10）的方法，优选地是洗衣机滚筒，所述容器设置有沿着其周边均匀分布的空腔（15），并且具有开口（20），通过该开口 可以在相应的腔中引入液体。 提供传感器（24），用于感测由容器的旋转引起的振动，并且用于发射电信号，该电信号的大小是振动幅度的量度。 使容器（10）以第一旋转速度旋转并读取传感器信号。 将预定量的液体沿着鼓的周边引入随机选择的空腔（15）中。 再次读取传感器信号，并将该值与先前检测到的值进行比较，其中如果该值低于前一个值，则在所选择的腔中引入预定量的新剂量，而如果该值等于或大于 前一个预定量沿着周边被引入紧随其后的空腔中。 重复所描述的顺序，直到传感器信号低于容器以高于第一转速的第二转速旋转的预定容许值。 对于不同的转速重复所描述的顺序，直到达到期望的转速并且传感器信号低于预定值。