一种基于NE555的电子除臭器的设计，该设计中共分为三部分：光电耦合电路、延时电路、负离子发生器电路。它是利用电晕放电使空气电离，产生大量负离子和少量臭氧，它以消除电冰箱内由于食物相互影响而产生的各种异味，同时还能杀灭在低温下生长繁殖的各种细菌，对食物起到保鲜灭菌的作用，能有效的防止冰箱病的产生。-Based on the design of electronic deodorizer NE555, which is designed to Communist China is divided into three parts: the optical coupling circuit, a delay circuit, negative ion generator circuit. It is the use of corona discharge air ionization, a large amount of negative ions and a small amount of ozone, it is to eliminate all odors in the refrigerator due to the interaction of food and produce, while at low temperatures can kill a variety of bacteria growth and reproduction of play a role in the preservation of food sterilization, which can effectively prevent the generation of refrigerators disease.