Power switch device

Abstract

The invention discloses a power switch device. The power switch device comprises a cover plate, an outer shell, a static contact, a moving contact and a moving contact drive assembly, wherein the outer shell is covered with the cover plate; the outer shell is internally provided with the static contact and the moving contact which are coaxial; the moving contact is driven and connected by the moving contact drive assembly so as to realize connection and disconnection with the static contact; and the moving contact drive assembly is driven by using a cam. According to the power switch device, the moving contact is driven by using the cam, the service life of the power switch can be prolonged, a spring is prevented from being used for a long time to cause fatigue damage of the spring, the reliability of the power switch is improved, the operating state of the power switch is guaranteed, a cylinder and a timer are arranged, automatic control of the power switch can be realized, and timing control is realized; and moreover, arc chutes can reduce the influence of internal arcs, radiator fans can effectively adjust heat and moisture inside the power switch, the operating environment of the power switch is guaranteed, and the service life of the power switch is further prolonged.

Description

technical field [0001] The invention relates to a power switch device and belongs to the technical field of power equipment. Background technique [0002] Power switches refer to various high-power switching appliances working in power generation, power transmission, power distribution and power consumption units. They play a role in controlling and protecting the operation of the power system. With the continuous development of modern power electronics technology, sensing technology, microelectronic devices, material science and superconducting technology, the concept of high and low voltage power switchgear is constantly developing and expanding, and more new complete sets of devices or current limiting devices will appear facilities to meet the operational needs of modern power grids. [0003] The current power switch generally relies on the force of the spring to realize the opening and closing of the switch. Because the electric arc is prone to appear in the power swit...

AI Technical Summary

Problems solved by technology

[0003] The current power switch generally relies on the force of the spring to realize the opening and closing of the switch. Because the electric arc is prone to appear in the power switch, the arc has a certain corrosive effect on the spring, which is easy to cause damage to the spring. Moreover, the spring is also prone to appear after long-term use. Fatigue leads to the failure of opening and closing of the power switch, which affects the safe use of power and is not conducive to the improvement of the service life of the power switch

Images