ELECTROMAGNETIC SWITCHING DEVICE CAPABLE OF BEING MINIATURIZED

摘要

PURPOSE: An electromagnetic switching device is provided to miniaturize by using a piezoelectric actuator instead of a solenoid-type actuator.;CONSTITUTION: In an electromagnetic switching device, fixed contact point(111) is connected to an external device to be opened. A movable contact(112) is detachable from the fixing contact point. A driving unit is installed in the lower part of the movable contact and moves the movable contact up and down. The driving unit is comprised of a piezoelectric unit formed with a piezoelectric element and a connection unit(200) which is combined with the movable fixing point and the piezoelectric unit to covert the relaxation motion of the piezoelectric unit to the motion of up and down movement of the movable contact point.;COPYRIGHT KIPO 2012