ELECTROMAGNETIC FORCE OPENING AND CLOSING TYPE ELECTROMAGNETIC SHIELD DOOR SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an electromagnetic force opening and closing type electromagnetic shield door system that applies force for opening and closing an electromagnetic shield door irrelevantly to a dynamic pressing mechanism and force for holding electromagnetic shield with necessary shielding performance for a long period of time.;SOLUTION: Electromagnet layers 10, dust pocket layers 20, and conductive material layers 30 are provided to abutting parts of an inner peripheral surface of a door frame 3a and an outer peripheral surface of the electromagnetic shield door 4a. When the electromangetic shield door 4a is opened, currents to be applied to the electromagnet layer 10 of the door frame 3a and the electromagnet layer 10 of the electromagnetic shield door 4a are made to flow in the same direction to generate repulsion between the electromagnet layers 10 which face each other. When closed, the currents to be applied are made to flow in opposite directions to generate attracting force between the facing electromagnet layers 10, thereby bringing the conductive material layers 30 into contact with each other.;COPYRIGHT: (C)2011,JPO&INPIT