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法拉电容做点焊机视频

来源:baiyundou.net   日期:2024-07-03

作者:阿博茨得

(想看洗车机电池的直接往下翻翻到底)
前段时间用电烙铁组装了两个充电宝,一个用的8节值友们都撸的亿纬25P18650,一个用的4节亿纬的50e

做好后这个21700的没事,18650的因为给孩子用,难免磕磕碰碰,因为磕碰里面的镍片焊点有松动导致出现用电快的原因,所以就有了弄个点焊机的想法。

事先考虑过电瓶点焊机控制板,但想了下手里没有大电流的电瓶—排除;也考虑过法拉电容版的,可是现在法拉电容被炒的价格虚高的一批,而且质量参差不齐,还有炸管的可能—排除,所以最后还是决定变压器款的,虽然重,但是长时间存放也不会有电容的那些缺点。

决定后就开始找物料,最关键的变压器,在本地废品站找了几家没找到微波炉的变压器,遇到一个也是功率太小放弃了,所以干脆从海鲜市场上下单一个800W的铝线变压器(铜线的太贵了),到货后先拆除次级绕组,费了老大劲总算平安拆除,然后就是次级绕组的铜线,直接买成品太贵,所以就用淘宝的各种小红包买了几次10平方的电焊线,回来拆除外皮合并到一块,最后量了下差不多30平左右,用白蜡管套住绝缘,刚开始也想过用热缩管套上然后再套白蜡管,但是热缩管套上后线会变硬,次级会非常不好绕线,所以直接上的白蜡管,次级绕了4圈,绕好后通电量了下电压4V左右,还可以,然后就是控制板了,考虑到变压器功率不是太大,所以就决定用双脉冲的了,最开始看中的是这款

刚好那几天是双十一前几天,所以就先加入了购物车等活动的那些红包可以使用后准备下手,期间也偶尔会到废品站看看有没有合适的外壳,刚好有天有个稳压器的外壳我看还可以,老板人还不错,愿意把里面东西拆了把壳子卖给我(别的老板都不愿意单独卖外壳的),按1.8一斤卖给了我,最后好像是4块左右,当时没有量,只是目测能用,谁知道拿回来量了下变压器能放下,但前面板下面是斜的放不下上面那款控制板,控制板的尺寸是6*9

所以只好重新再找合适尺寸的控制板,找了下,还真找到差不多尺寸能用的双脉冲控制板

等到双十一下单购买,还有给控制板供电的9V交流变压器,在等到货期间抽空把外壳除漆,刮原子灰(因为盖子上锈的太厉害有坑),打磨,因为要打孔所以暂未喷漆

还用实木做了个电池夹具,当时算错蝴蝶丝的长度买长了,所以这四个螺丝都是锯短过的

然后继续整点焊机,然后就是焊笔焊针,焊笔刚开始也准备买的,可刚好看到前段时间烧掉银点的大型接触器的铜排,有三块

焊针用氧化铝铜的,网上买的国产针,几块钱一根,然后就是控制板到货后先裸接线试机,刚开始参数调的有点大还有镍钢片也没有按紧导致直接钢片打穿,调解后没问题了,然后就是测量规划放进壳体的位置和孔位

只是在原来进线孔扩大后加了16A的船型开关,前面板数码管刚好能放到以前的方形开孔后面,而且大小也刚好,最合适的竟然是以前这个窗口的透明盖板刚好能用,图上固定前控制板的那根钢丝就是原壳固定透明盖板的,喷漆的过程没拍,所以大家也许看着有点跳跃,见谅!

那些字是我先喷了一遍漆后随便找笔写上的(所以写的丑也请轻喷),然后用美纹纸贴住后又喷了一遍漆,红色的装饰条也是美纹纸贴住全部别的后喷的红漆,最后撕掉美纹纸又喷了两遍清漆,所以字不会掉。

最后是焊笔改造,最开始是分体式的

因为现在天气凉了,手握住铜排还凉冰冰的,而且铜排上本来就带孔,所以准备改造成握持不冰手还能合体分体的

大家是不是看着压持焊针的压片挺别扭,那是因为我没有台钻用手枪钻打的孔手动攻的丝,所以那么歪,虽然丑不影响使用。

罗里吧嗦这么些还没展示焊接效果

参数如下图

重点洗车机电池来了

最后,组装这台点焊机最主要的成本就是变压器和控制板,变压器35包邮的,控制板我买的41A可控硅的原价55好像,减了双十一各种红包花了27块多,焊针花了十几块买了3跟,铜线应该一共花了十一二块,壳子就按5块,自喷漆是以前买的,各种螺丝什么的都是签到红包买的,总算下来也就不超100吧,关键在于过程

第一次写这么长的帖子。都手机码的字,也是想起来什么说什么,有很多过程没有拍下来,希望高手大佬指正需要改进的地方,有想自己装点焊机的也可以大家交流!

手里还有3、4十颗25P,最后想问下大家,给别人换并夕夕上撸的25P要多钱一颗啊

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