Emergency power supply system special for intelligent energy-saving fire control emergency lamp

Abstract

The invention discloses an emergency power supply system special for an intelligent energy-saving fire control emergency lamp. The emergency power supply system comprises a power supply control unit and an adapter. The input end of the adapter is respectively connected with an external electric supply and a storage battery, the output end of the adapter is connected with a power supply control unit, and the adapter provides various required working voltages for the power supply control unit. The power supply control unit comprises a central processing unit (CPU), a charging control module, the storage battery, a power conversion module, an input output detection module and an output circuit. The adapter comprises a filtering rectifying circuit, a switch oscillation circuit, an oscillation and pulse width modulation control circuit, a multi-way rectifying filtering circuit, a direct current (DC) sampling circuit and a DC output circuit group. The emergency power supply system combines electric supply power supply and storage battery power supply, ensures normal work of the emergency lamp, reduces safety hazards, is capable of charging storage batteries with different capacities and voltages in the series of products, simplifies circuit structure and reduces cost. The power supply input range accepted by the adapter of a switch power supply is large.

Description

technical field [0001] The invention relates to a special emergency power supply system for an intelligent energy-saving fire emergency lamp. Background technique [0002] With the continuous development of social informatization, people are more and more dependent on electricity. Sudden power failure will destroy people's normal life order. It will cause significant political impact or economic loss. However, power failures are sudden and often do not depend on people's will, because no matter how strict the management of the power supply department is, no matter how advanced the grid facilities are, power outages are inevitable. [0003] The emergency power supply is a backup power supply device installed in a building. When a fire accident or other emergency occurs in a building and the city power is cut off, the emergency power supply can provide a second Road emergency power supply, in case of emergency, provide the power supply of the emergency lamps on the escape ro...

AI Technical Summary

Problems solved by technology

[0004] 1. The power supply mode is single, and generally only the mains power supply can be used. Once the mains power supply fails, the normal operation of the emergency lights cannot be guaranteed, and the stability and reliability of the circuit work is poor, which directly causes immeasurable safety hazards;

[0005] 2. The charging method is single, and it cannot charge battery packs with different capacities and voltages;

[0006] 3. The charging current and voltage are fixed, and it is easy to exceed the capacity of the battery pack or appear empty during the charging process, resulting in shortened life of the battery pack and large charging loss

[0008] 1. It can only adapt to 100-240V AC input power, and it cannot work normally when the voltage changes greatly;

[0009] 2. The voltage output mode is single, and can only output a fixed voltage;

[0010] 3. There are many internal components of the switching power supply, the circuit structure is complicated, the energy consumption of the equipment is high, and the manufacturing cost is increased

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