LED应急照明灯

眉山职业技术学院毕业论文

毕业论文项目表

摘要

消防应急灯，适用于消防应急照明，是消防应急中最为普遍的一种照明工具，应急时间长，高亮度具有断电自动应急功能。消防应急疏散指示灯具有耗电小、亮度高、使用寿命长等特点，边上设计有电源开关和指显灯，适合工厂、酒店、学校、单位等公共场所以备停电作应急照明之用。消防疏散指示灯是选用工业塑料和高亮度的灯泡制成，材料不老化、散热快、抗冲击等特点。消防应急疏散指示灯具有壁挂式、手提式、吊式安装方式。用户在安装疏散指示灯时，可以根据实际情况选择不同的安装方式。

消防应急照明灯电池是用于消防应急灯中的蓄电池，当有交流电输入时利用充电电路给蓄电池充电，正常交流电断开时也就是我们的正常用电断开的情况下，消防应急照明灯的蓄电池给灯泡供电而点亮。现在国家消防应急灯电池要求提供应急照明电源时间不得短于90分钟。消防应急灯电池主要用来为消防应急照明提供电源，是消防应急照明灯的重要装置，与消防应急照明灯一起用于是在发生火灾时正常照明系统不能提供照明时为人员疏散、特殊岗位坚持工作以及灭火救援行动提供应急照明。

关键词：消防应急灯、原理、电路、故障分析

Abstract

Fire emergency lights, emergency lighting for fire, fire emergency is the most common type of lighting tools, emergency long time, high brightness with automatic emergency power-off function. Emergency evacuation lights has small power consumption, high brightness, long service life, the edge of the design of the power switch and lights that were suitable for factories, hotels, schools, units and other public places to prepare for power outages for emergency lighting purposes. Fire evacuation indicator is the choice of industrial plastic and high-brightness light bulb made of material does not age, fast heat dissipation, impact resistance and other characteristics. Emergency evacuation lights with a wall-mounted, portable, hanging installation. Users install the evacuation light, you can choose according to the actual situation of different installation methods.

Emergency lighting batteries are used in fire emergency light battery, when the AC input to charge the battery using the charging circuit, the normal AC power is disconnected electricity off our normal circumstances, fire emergency lighting lamps battery to power the light bulb. Now the state fire emergency light power supply emergency lighting batteries required time shall not be less than 90 minutes. Fire emergency light batteries are mainly used to provide power to fire emergency lighting is a major fire emergency lighting installations, emergency lighting and fire with fire when used in normal lighting system can not provide illumination for the evacuation, the special status continued to work fire fighting and rescue operations and emergency lighting.

Key words: Fire emergency lights, principles, circuits, fault analysis

目录

摘要................................................................. I Abstract .............................................................. II 第1章绪论. (1)

1.1 课题描述 (1)

1.2 基本工作原理及框图 (1)

第2章相关芯片及硬件电路设计 (2)

2.1 应急照明灯电路 (2)

2.1.1 应急照明电路图 (2)

2.1.2 元器件选择 (3)

2.2 自动充电电路 (3)

2.2.1 自动充电电路原理 (3)

图3自动充电电路电路图 (4)

2.3 继电器开关 (4)

2.4 多谐振荡电路 (5)

2.4.1 555的功能特性 (5)

2.4.2 555的引脚介绍 (5)

2.4.3 多谐振荡电路原理 (6)

2.4.4 多谐振荡电路控制应急灯原理 (7)

第3章 EPS应急电源 (9)

3.1 EPS应急电源的工作原理 (9)

3.2 EPS应急电源的系统组成 (9)

3.3 EPS应急电源的应用 (9)

3.4 EPS消防应急电源与UPS电源的比较 (10)

3.5 EPS消防应急电源与分散式的应急电源比较 (10)

总结 (11)

参考文献 (12)

致谢 (13)

附录 (14)