Title:
WASHING MACHINE
Document Type and Number:
Japanese Patent JP2022110656
Kind Code:
A
Abstract:
To provide a washing machine which can suppress an increase in size of a control device and further can suppress noise.SOLUTION: A washing machine includes: an outer tank 3; a rotary drum 4 which stores laundry; a driving device which drives the rotary drum 4; a control device 50 which controls a washing operation; a power supply circuit which is connected to the driving device and the control device 50; a cooling fan 104 which is driven by PWM control from the control device 50; and a cooling fan driving circuit which has a smooth capacitor 103 for smoothing the PWM controlled voltage and drives the cooling fan 104. The power supply circuit has an AC power source 80 for supplying power to the driving device and the control device 50, a first step-down circuit (step-down circuit 88) which converts from first voltage applied to the driving device to second voltage applied to the control device, and a second step-down circuit (step-down circuit 90) which converts from the second voltage applied to the control device 50 to third voltage applied to a radio communication device 60.SELECTED DRAWING: Figure 3
Inventors:
OKIHARA SHUNSUKE
NISHIWAKI YUKI
SHIBUYA KENJI
NISHIWAKI YUKI
SHIBUYA KENJI
Application Number:
JP2021006194A
Publication Date:
July 29, 2022
Filing Date:
January 19, 2021
Export Citation:
Assignee:
HITACHI GLOBAL LIFE SOLUTIONS INC
International Classes:
D06F34/00; D06F33/72; D06F34/05; D06F34/08
Attorney, Agent or Firm:
Yuji Toda