| 摘要 |
<p>An apparatus for guarding a pressure sensor (100) for a washing machine is provided, which adjusts the water level required to wash laundries. The apparatus for guarding a pressure sensor includes a diaphragm (140) built in a space part (120) of a housing (110) to operate in accordance with the water pressure of washing water being supplied through an inlet (C), a metal core (150) mounted on an upper surface of the diaphragm (140) through a coil spring (130), a first sensing part (160) installed in a moving path of the metal core (150) to output a signal required for adjustment of a water level of the washing water, a measurement part (10) mounted on an upper surface of the metal core (150) to ascend/descend along an operation path of the coil spring (130), a second sensing part (20) mounted on an upper side of the space part (120) to sense maximum and minimum positions of the measurement part (10), and a controller (30) outputting a blocking signal to an inlet path of the inlet (C). According to the apparatus for guarding a pressure sensor, washing water more than or less than a prescribed amount is prevented from being supplied to the washing machine, and thus a uniform washing process is performed to improve the reliability of the washing machine, Also, the damage or corrosion of electric/electronic sub assembly of the washing machine due to the overflow of the washing water is prevented to prolong the lifespan of the washing machine.</p> |
