汽车蓄电池充电器毕业论文.doc

摘 要 本文分析了铅酸蓄电池的特性以及国内外充电技术的发展情况，分析了蓄电池的内部结构，根据电化学原理总结了蓄电池的放电特性，由于充电和放电是可逆的，所以得到蓄电器充电的原理，根据对蓄电池充电技术发展的历史，得出并总结了充电器对蓄电池充电的一般原理。根据提高铅酸蓄电池充电速度的关键在于消除充电过程中电池的极化现象的理论，从蓄电池内部氧循环的设计思路出发，研究了三段式和二段式充电方法对蓄电池使用寿命的影响，然后根据蓄电池充电过程中出现的各种问题，提出对铅酸蓄电池实现三段式充电的智能充电器设计方案。 该充电器可实现恒流，恒压，浮冲三段充电方式，并能快速充电。这个方案不仅可以实现对蓄电池的智能控制，并且增加了反极性保护功能。同时可以减少出气，消除硫化，进行均衡充电，从而大大地提高电池使用寿命，符合节能环保，低碳生活的要求。最后，因为密封铅酸蓄电池具有电压稳定、供电可靠、移动方便等的诸多优点，因此在实际应用中得到了广泛应用，然后对蓄电池充电技术进行了展望和预测。 关键词：铅酸蓄电池 三段式 智能 充电器 保护 未来展望 ABSTRACT This paper analyzes the characteristics of lead-acid batteries and charging technology development situation at home and abroad, analyzes the internal structure of battery, according to the principle of electrochemical summarizes the battery discharge characteristics, due to charge and discharge is reversible, so get accumulator charging principles, according to the battery charging technology development history, and summarizes the charger to draw battery charging of general principles. According to the improved lead-acid battery charging speed is the key to eliminate in the process of charging battery polarization theory, from the battery internal oxygen cycle design ideas, study of three stage and two stage charging method for battery service life influence, then according to the battery charging process problems, put forward to realize on lead-acid battery three section type charging intelligent charger design. The charger can realize constant current, constant voltage, floating punch three charging modes, and can fast charging. This scheme can not only make the battery intelligent control, and increased reverse polarity protection function. At the same time can reduce the air, eliminate sulfide, balanced charge, thereby greatly improving the service life of the battery, consistent with energy conservation and environmental protection, low carbon life requirements. Finally, because the sealed lead-acid battery with voltage stability,