ELECTRIC CURRENT SWITCHING APPARATUS

摘要

An electric switch includes first and second stationary contacts, and a movable contact for making an electrical connection between the first and second stationary contacts. The movable contact is pivotally connected to the first stationary contact by a pivotal connection for allowing the movable contact to pivot with respect to the first stationary contact about a pivoting axis such that in an open position of the switch, the movable contact is disconnected from the second stationary contact, and in a closed position of the switch, the movable contact is in contact with the second stationary contact. The movable contact and the first stationary contact are arranged in a first angle with respect to each other in the open position of the switch, and in a second angle with respect to each other in the closed position of the switch, and the second angle is greater than the first angle.

主权项

1. A contact arrangement of an electric switch, comprising:
a first stationary contact; a second stationary contact; a movable contact for making an electrical connection between the first and second stationary contacts, wherein the movable contact is pivotally connected to the first stationary contact by a pivotal connection for allowing the movable contact to pivot with respect to the first stationary contact about a pivoting axis such that in an open position of the switch, the movable contact is disconnected from the second stationary contact, and in a closed position of the switch, the movable contact is in contact with the second stationary contact, wherein the movable contact and the first stationary contact are arranged at a first angle with respect to each other in the open position of the switch, and at a second angle with respect to each other in the closed position of the switch, and wherein the second angle is greater than the first angle, and the second angle is less than 180 degrees; and a rotary actuator for moving the movable contact about a rotation axis of the rotary actuator, and the pivoting axis of the pivotal connection between the first stationary contact and the movable contact is arranged within a perimeter of the rotary actuator, each of the stationary contact includes a connection portion for connecting to an external conductor, the connection portions of both stationary contacts are arranged at a same plane to each other, and the rotation axis of the rotary actuator is arranged away from the plane of the connection portions of the stationary contacts.