To provide an opening/closing detecting device for a lid switch which does not erroneously detect the opening/closing of the lid switch even if a specified constituent element fails by foreign noises or the like.
The lid switch 15 which opens/closes while in association with the opening/closing of a lid of the opening section is installed on a washing machine body. A power source port PE (5 V), two input ports PA and PB as a specified constituent element, and a grand port GND (0 V) are installed on a microcomputer 19. With the power source port PE, the input ports PA and PB, and the grand port GND, a detection circuit 20 which outputs a detection signal by detecting the opening/closing of the lid switch 15 is connected. Then, the microcomputer 19 determines the opening/closing of the lid switch 15 on the AND condition of the detection signal which is given to the input ports PA and PB. Also, diodes 23 and 24 for surge absorbing as a specified constituent element which are serially connected with each other are connected in parallel with the lid switch 15.
| JP2000019211 | LEAK DETECTOR |
| WO/2017/111352 | WASHING MACHINE |
HASEGAWA KOICHI
TOSHIBA CONSUMER MARKETING
TOSHIBA KADEN SEIZO KK
| JPH11156085A | 1999-06-15 | |||
| JP2001116268A | 2001-04-27 | |||
| JPH0675814A | 1994-03-18 | |||
| JPH05277290A | 1993-10-26 | |||
| JPH10133900A | 1998-05-22 |
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