Electric switch, in particular a load switch or electric circuit breaker
AssigneeHolec Systemen en Componenten B.V.
InventorsHendrik A. Bosch, Soedjimat F. Darmohoetomo
Life of this patent
Estimating the term…
Abstract
An electric circuit breaker or load switch has at least one fixed contact, a movable contact and a spring system having a rigid arm and a leaf spring. The leaf spring is hinged to the arm to provide an arm-leaf spring assembly in the form of a toggle mechanism, having a first end hinged to a movably supported element bearing the movable contact, and a second end which is hingedly supported at a distance from and opposite the fixed contact. The second end, the first contact and the movable element are positioned such that the arm-leaf spring assembly in both the open and closed position of the contacts assumes a deflected position, by which the connection length of the switch is effectively reduced.
Claims11
An electric switch, comprising a housing, at least one pair of contacts consisting of a fixed and a movable contact;
- a spring system, having a rigid arm and a leaf spring, which leaf spring is hinged by one end to the arm, in such a manner that an arm-leaf spring assembly in the form of a toggle mechanism with a first and second end is formed, in which the first end is hinged to a movably supported element which bears the movable contact, and in which the second end is disposed hingedly supported at a distance from and opposite the fixed contact;
- control means acting upon the arm-leaf spring assembly for taking the movable element into a first position, in which the leaf spring is released, and for taking the movable element into a second position, in which the leaf spring is tensioned;
- and latching means for locking the movable element in the first and second position, wherein the hingedly disposed second end of the arm-leaf spring assembly, the fixed contact and the movable element are positioned in such a manner relative to each other that the arm and leaf spring both in the first and in the second position of the movable element assume a relatively deflected position compared to an imaginary connecting line between the hingedly supported second end of the arm-leaf spring assembly and the fixed contact.
Dependencies are inferred from the claim text.