环保健身无电手电筒（LED手电筒）的设计论文.doc

摘要：传统手电筒使用普通干电池作为能源,长期放置会出现漏液現象,从而导致产品损坏,且干电池使用完后处置不当会造成环境污染.环保健身手电筒不使用干电池,內置高效机械发电装置,节约能源,且不污染环境,可随时使用.体现了当今社会倡导的绿色环保概念和以人为本的设计理念. ? 此手电筒的最大优点就是不用电，采用手压发电原理工作，经整流后，作为LED发光照明时的电源，手压1分钟可以照明1小时，5-8分钟可以持续照明5个小时。射出的光线接近自然光，亮度高，射程可以达到10-20米。General dry battery is used as power supply for traditional flash-light . Leakage will happen over a long period of time and damage the product. Besides, improper disposal of dry battery will cause pollution to environment. Environmental-friendly flashlight is provided with a built-in high-efficient generator in substitution of dry battery, to save energy without producing any pollution to environment . It is easily operated at any time, reflecting the green and environmental-oriented design principles. This flashlight biggest merit does not use electricity, uses the hand to press the electricity generation principle work, after the rectification, took when LED illumination illumination the power source, the hand presses 1 minute to be possible to illuminate for 1 hour, 5-8 minute may illuminate continually for 5 hours.Projects the light close natural light, brightness is high, the firing distance may amount to 10-20 meter.So long as presses gently with the hand, can produce the voltage electric current immediately. Enable the light bulb to project pure white luminous, the old person, the children all can use. Key word: LED flashlight tube wheel lithium battery generator commutation electric circuit LED control actuation electric circuit 前 言 本文研究课题的主要内容是针对现在使用最广泛的手电筒，它是通过各类电池来发光，而电池主要有一次性电池、二次电池和汽车电池。一次性电池包括纽扣电池、普通锌锰干电池和碱电池，一次性电池多含汞。二次电池主要指充电电池，其中含有重金属镉。汽车废电池中含有酸和重金属铅。 废弃在自然界电池中的汞进入土壤或水源，再通过农作物进入人体，损伤人的肾脏。在微生物的作用下，无机汞可以转化成甲基汞，聚集在鱼类的身体里，人食用了这种鱼后，甲基汞会进入人的大脑细胞，使人的神经系统受到严重破坏，重者会发疯致死。著名的日本水俣病就是甲基汞所致。电池中的镉渗出污染土地和水体，最终进入人体使人的肝和肾受损，也会引起骨质松软，重者造成骨骼变形。汽车废电池中含有的酸和重金属铅泄漏到自然界可引起土壤和水源污染，最终对人体造成危害…………………………………………………………………………………………10 1.弹簧刚度与弹簧特性的关系……………………………………………………12 2.圆柱螺旋扭转弹簧有关参数标准 LED在照明前景……………………………………………………………………? 2.LED的结构及发光原理LED的特点