Title:
DEWATERING MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/108431
Kind Code:
A1
Abstract:
A dewatering machine, capable of monitoring abnormal vibrations in stable rotation of a rotary tub for dewatering washing objects. The dewatering machine (1) comprises: a motor (6) for enabling the rotation of a rotary tub (4) of a dewatering tub (16), an acceleration sensor (27) for detecting vibration of the dewatering tub (16), and a control unit (21). The control unit (21) is configured to control the motor (6), so that the rotational speed of the motor (6) increases to a specified dewatering rotational speed and then the motor stably rotates at the dewatering rotational speed, so as to dewater the washing objects (Q) in the rotary tub (4). The control unit (21) acquires a peak-to-peak value of a detection value of the acceleration sensor (27) during each of a plurality of sampling periods in the stable rotation of the motor (6) at the dewatering rotational speed. If the peak-to-peak value is equal to or greater than a specified threshold, the control unit (21) adds one to the count value. When the count value reaches a specified value, the control unit (21) determines that there is an imbalance of a specified or larger size in the rotary tub (4).
Inventors:
SATO HIROKI (JP)
MIYAJI MASAYOSHI (JP)
MIYAJI MASAYOSHI (JP)
Application Number:
PCT/CN2019/120588
Publication Date:
June 04, 2020
Filing Date:
November 25, 2019
Export Citation:
Assignee:
QINGDAO HAIER WASHING MACH CO (CN)
AQUA CO LTD (JP)
AQUA CO LTD (JP)
International Classes:
D06F33/76; D06F23/00; D06F37/00; D06F49/00
Domestic Patent References:
| WO2016091215A1 | 2016-06-16 |
Foreign References:
| CN107099973A | 2017-08-29 | |||
| CN102251369A | 2011-11-23 | |||
| CN105274775A | 2016-01-27 | |||
| CN107881708A | 2018-04-06 | |||
| CN106149279A | 2016-11-23 | |||
| CN105019191A | 2015-11-04 | |||
| CN105200711A | 2015-12-30 | |||
| JP2010051433A | 2010-03-11 | |||
| JP2018023626A | 2018-02-15 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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