Economical integrated separation-type electronic ballast for high-voltage sodium lamp

Abstract

Disclosed is separation-type electronic ballast for a high-voltage sodium lamp. The electronic ballast comprises an electronic ballast PCB (printed circuit board), a radiating shell and electronic power elements separated from the electronic ballast PCB, the separate electronic power elements are mounted on the radiating shell, the electronic ballast PCB is connected with the separate electronic power elements, the separate electronic power elements can be directly replaced when an electronic power element module is damaged, and replacement of the integral electronic ballast is omitted. The separation-type electronic ballast with the structure has the advantages that the maintenance cost of the electronic ballast for the high-voltage sodium lamp is greatly lowered, energy consumption is reduced, and work efficiency is improved.

Description

technical field [0001] The invention relates to an energy-saving high-pressure sodium lamp integrated and separated electronic ballast. The core power electronic components in the ballast are separated from the PCB board (printed circuit board) of the electronic ballast to facilitate maintenance of the ballast. Background technique [0002] Electronic ballasts are converters that convert industrial-frequency AC power into high-frequency AC power. They mainly go through two different stages: inductive and digital. [0003] Digital electronic ballasts are aimed at analog electronic ballasts. The structure of analog electronic ballasts is relatively simple, the function is relatively single, the construction of the circuit is relatively complicated, and it is not easy to realize preheating start, cut-off ( Shutdown) and other protection functions; if the above functions are to be realized on analog electronic ballasts, there are high requirements for product consistency and rel...

AI Technical Summary

Problems solved by technology

[0004] Usually, street lamps equipped with electronic ballasts are often started and stopped during use, which may easily cause the power electronic components of electronic ballasts to be affected by transient high voltage during startup. Therefore, in 80% of cases, electronic ballasts are damaged. All of them are power electronic components; at present, the direct replacement method is adopted for the faulty electronic ballasts, and in order to keep the technology confidential, the ballast manufacturers adopt an integrated design for the ballasts, The components in the device are plastic-sealed together, so that the replaced ballast cannot be repaired. This method of directly replacing the ballast not only makes the maintenance cost high, but also brings waste of resources, which violates the national energy conservation policy. policy

Images