led电子灯箱制作方法?

2025-04-05 16:09:38
推荐回答(1个)
回答1:

1: 打孔的大小要让灯珠紧紧的插进去,太松的话不利于防水,一般用4.8到5.2的钻头,试验一下,看哪种的合适。原则是插进去不容易拔出来。

2:如果用的是铝塑板,灯珠和电阻以及带电的部分千万不要和和铝皮挨一起,这样漏电,不安全,还会在装有漏电保护器时跳闸。 让灯珠的引脚和板子保持一定的距离。

3:电阻的安装位置,建议安装在任何两个固定好的灯珠之间,比如95个,要安装4个1k/2w的电阻,意思就是把这4个电阻分散开串在从1到95个灯珠的任何两个之间。因为第1和第95需要接线,所以最好不要接在线上再接在灯珠上,这样比较容易松动,不太牢固。

4:电阻的大小有各种型号,灵活的话怎么都可以用,原则是让led灯珠工作在合适的工作状态,就是(15到18毫安),并且电阻的发热也在自身功率的承受范围之内。

电阻有1k/2w、1k/3w、1k/5w。。。。。还有2k、3k、4k、5k。。。。。的。电阻的1k、2k、3k。。。指的是电阻的阻值,比如5k的=5个1k的串联,也等于2k+3k=5k 。 2w、3w、5w。。。。。指的是电阻的功率,是电阻自身承受的额定功率,平时使用时一般让电路工作一段时间,手摸电阻,热是热的,但是不很烫为原则。

5:分组,如果灯珠超过了一定的数量,要进行分组,这样才可以使灯珠正常的工作在正常范围内,分组的原则是最好平均。如果在灯珠多的部分要同时闪烁的话,比如用ky105的绿线控制的主题部分 ,如有3个字,因为这3个字要同时亮或者灭的,所以不用考虑是3个字还是几个字,只需要把这3个字的灯珠全部串联后再分组。 比如3个字一共638个灯珠,638/6=106个余2,可以搞4组106个的,2组107的,这样每组串入3个1k的就可以了,(一共3*6=18个)相差1个灯珠影响很小的。这样的好处是,只要搞定了第一组,剩下的和第一组是完全一样的,不用考虑。当然做的时候也要一组一组的接,全部接上有问题的话,麻烦。分组的结果最好接近在各种颜色的最高分组数,这样最省事,节省成本。当然上边的你也可以分组为638/7=91余1做,这样分组多了,每组还要增加电阻。

平均分组,刚才的如果不是平均分组,按字分字1=150,(要分两组,接电阻6*2=12个),字2=250个,(要分3组,接电阻5*3=15个),字3=238(分2组不合适,分3组要加电阻5*3=15个)这样的分组为:2+3+3=8组,加电阻为12+15+15=42个,电阻多了一倍还多。麻烦多了。

6:灯箱的功率怎么算?不能按每个灯珠的功率乘以个数。因为电阻也要耗电的,一般按每组的功率乘以组数,还和每组电流的大小有很大关系,如果每组电流调整在15到18毫安,按最高20毫安计算,每组的功率是4w, 留余量后最大5w计算,所以控制器的功率在标志100w是可以带20组,如果一组接100个的话,可以带2000个,,但是如果每100个分了两组,就是50个一组的话就只能带1000个了,所以合理的分组方便之处可想而知。

那个638个灯珠的3个字的例子,合理分组的功率是5*6=30,最大30w,按字分组的话5*8=40w。

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