dual power switch

Abstract

The invention relates to a dual-power-source switch. The dual-power-source switch is characterized by comprising a frequently-used power source, a standby power source and a motor; the frequently-used power source and the standby power source are provided with a frequently-used power source push rod and a standby power source push rod, a disc is installed on a motor shaft, and a rotating shaft is arranged on the disc; the standby power source push rod and the frequently-used power source push rod are clamped by a frequently-used power source propeller shaft and a standby power source propeller shaft respectively, and the frequently-used power source propeller shaft and the standby power source propeller shaft are arranged inside a frequently-used power source sliding box and a standby power source sliding box respectively; a frequently used power source lever is rotationally arranged between the frequently-used power source and the motor, a standby power source lever is rotationally arranged between the standby power source and the motor, the tail end of the frequently-used power source lever is connected with the frequently-used power source sliding box, and the tail end of the standby power source lever is connected with the standby power source sliding box; notches are arranged at the head ends of the frequently-used power source lever and the standby power source lever, and the rotating shaft can slide into the notches when the disc rotates. According to the dual-power-source switch, the switching reliability of the power sources is improved, and the service life of a mechanism is prolonged.

Description

technical field [0001] The invention relates to a dual power switch, which belongs to the technical field of power system operation. Background technique [0002] High-rise buildings, residential areas, hospitals, airports, docks, firefighting and other important places are not allowed to cut off power. In order to achieve continuous power supply, it is necessary to switch between the normal power supply and the standby power supply. At this time, a dual power switch is required. Dual power transfer switch (referred to as dual power) is mainly composed of molded case circuit breaker (CB level) or isolating switch (PC level) components. According to the national standard GB / T14048.11-2008, it is divided into CB grade, PC grade and CC grade. As an executive component, it is equipped with an automatic controller with a single-chip microcomputer as the core and a control mechanism with a base point chain. It is a dual-power switch with perfect performance, safety, reliability, ...

AI Technical Summary

Problems solved by technology

In this structure, the gap between the slider and the switch handle is large, and it is easy to cause uneven force on the switch handle during switching, resulting in unstable switching and shortening the service life of the mechanism. Exposed type, easy to enter sundries, not beautiful enough

[0004] like figure 1 As shown, it is a schematic diagram of a dual power switch in the prior art, by figure 1 It can be seen that the gap between the existing C-shaped slider 1 and the push rod 2 is very large, and the force is not uniform due to the angle relationship, which will lead to unstable switching and short service life of the mechanism

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