Title:
WASHING MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/019977
Kind Code:
A1
Abstract:
This drum-type washing machine comprises: a rotary tub; a motor (7) which rotationally drives the rotary tub; an inverter circuit (24) which converts direct current into alternating current and drives the motor (7); and a current detection unit which detects the current flowing through the motor (7). The drum-type washing machine further comprises: a low-pass filter processing unit (33) which performs low-pass filter processing on the current detected by the current detection unit and outputs the low-pass filtered value as a processed current value; an overload detection unit (34) which detects the overload state of the motor (7); and a control unit (31) which transmits a motor drive command to the inverter circuit (24) and controls the motor (7) through the inverter circuit (24). Further, the overload detection unit (34) determines the overload state of the motor (7) on the basis of the processed current value output by the low-pass filter processing unit (33), and the control unit (31) controls the rotational drive of the motor (7) on the basis of the determination result of the overload detection unit (34).
Inventors:
SON HOU
NAKAO HIROSI
KAMEDA KOJI
WANG RAN
TAKAHASHI ARATA
NAKAO HIROSI
KAMEDA KOJI
WANG RAN
TAKAHASHI ARATA
Application Number:
PCT/JP2020/024939
Publication Date:
February 04, 2021
Filing Date:
June 25, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
D06F33/40; D06F37/42
Foreign References:
| JP2014217643A | 2014-11-20 | |||
| JP2008264375A | 2008-11-06 | |||
| JP2014087511A | 2014-05-15 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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