Patent ID: 6970060

Claim:
A micro relay having a base, comprising: a movable plate supported by first and second supporting spring units extending from center positions on opposite edges of the movable plate and having respective, opposite ends supported on the base and defining a centrally disposed axis of rotation of the moveable plate, the moveable plate further comprising: first and second flap units formed in symmetrically spaced portions of the moveable plate, relatively to the axis of rotation, by corresponding slit in the moveable plate and connected by corresponding first and second leaf springs to respective, first and second end portions of the moveable plate, the flap units being resiliently maintained in a common plane with the moveable plate by the corresponding leaf springs, and first and second moveable contacts mounted on corresponding free ends of the respective first and second flap units and moveable with rotation of the moveable plate, the rotation producing elastic deformation of the first and second supporting spring units; first and second stationary contacts aligned with the respective, first and second moveable contacts and, in a non-operating state, spaced from one of the corresponding lower and upper ends of the respective, first and second moveable contacts; a ground contact aligned with, and, in a non-operating state, spaced from the other of the corresponding lower and upper ends of the respective, first and second moveable contacts; in an operating state, the moveable plate rotating about the axis of rotation and producing elastic deformation of the first and second supporting spring units and, further, elastic deformation of the first and second leaf spring units to bring a selected one of the first and second moveable contacts into contact with the respective one of said first and second ground contacts and to bring the other of the first and second moveable contacts into contact with the respective one of the first and second stationary contacts; and in a non-operating state, the moveable plate being in a position in which the first and second moveable contacts are resiliently maintained in a position spaced between and separated from the respective, first ground and first stationary contacts and respective, second ground and second stationary contacts.