行车记录仪的取电办法
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">1.<span style="color: black;">通常</span>取电常用<span style="color: black;">办法</span>:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">随着道路上的<span style="color: black;">情况</span>越来越<span style="color: black;">繁杂</span>,为了<span style="color: black;">守护</span>行车安全和方便,越来越多的车主会<span style="color: black;">选取</span><span style="color: black;">运用</span>行车记录仪。<span style="color: black;">非常多</span>动手能力强的车主会<span style="color: black;">选取</span>自己安装,<span style="color: black;">针对</span>许多电子<span style="color: black;">兴趣</span>者<span style="color: black;">来讲</span>更愿意自己来给爱车加装这个“黑匣子”。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">平常</span>的单体行车记录仪额定工作电压都是直流5V,而家用轿车的蓄电池电压是直流12V,这就需要将DC12V降压为DC5V,这<span style="color: black;">便是</span>记录仪电源的特殊技术<span style="color: black;">需求</span>,它跟车载充电器原理完全<span style="color: black;">同样</span>,内部<span style="color: black;">重点</span>电路都是一个DC-DC电源转换模块。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">平常</span>行车记录仪大部分是从汽车点烟器接口取电,电源如图1所示:</p><img src="http://mmbiz.qpic.cn/mmbiz_jpg/e0LqFkM39icsVOFvC52Avbb5L5fOK2KjlrkfXfibRgqxcbE1u8ORtVPdYAMVBUTicYWsEndZ3wnyTgDFb3MK4UIEg/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">因为</span>外加隨车设备越来越多,<span style="color: black;">非常多</span>时候会<span style="color: black;">显现</span>利用点烟器作电源接口却<span style="color: black;">显现</span>接口<span style="color: black;">不足</span>用的<span style="color: black;">状况</span>,对此,大多会想到用车专用一分二的插座,如图2所示,这当然<span style="color: black;">亦</span>是一种不错的<span style="color: black;">选取</span>,但有些车型点烟器接口<span style="color: black;">周边</span>空间有限,<span style="color: black;">此时</span>候从保险盒处取电<span style="color: black;">亦</span>是一种选项。</p><img src="http://mmbiz.qpic.cn/mmbiz_jpg/e0LqFkM39icsVOFvC52Avbb5L5fOK2KjlNHJ3QPbrtqb7EM3Q0QAp5ib0EicfHVZqCLICSq5JVI5IdNBAhRVJhyow/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">从保险盒取电需要<span style="color: black;">另一</span>购买一个与原记录仪电源接口一致的降压线(见图3所示)或采取与自己车辆保险丝规格一致的保险盒取电器(图4),降压线与点烟器接口电源<span style="color: black;">功效</span><span style="color: black;">同样</span>,都是将DC12V转换为DC5V的电压,只是它的体积小,便于安装<span style="color: black;">亦</span>较隐蔽;动手能力强的<span style="color: black;">亦</span><span style="color: black;">能够</span>将原电源拆开,在电路板上引出正负极导线<span style="color: black;">就可</span><span style="color: black;">运用</span>。</p><img src="http://mmbiz.qpic.cn/mmbiz_jpg/e0LqFkM39icsVOFvC52Avbb5L5fOK2Kjlc7ZFyiaC70MoOiblb32DnicXfjDibCJBWUb5icl1Qr9kZibAH8shFSKIibXAA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;"><img src="http://mmbiz.qpic.cn/mmbiz_jpg/e0LqFkM39icsVOFvC52Avbb5L5fOK2KjlX39GuQjknDj9b0Sk3EQyAwnEXOLmr1qRSoicsKREfMh2Pqgloow58IA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;"></span></p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">取电原理如图5所示,<span style="color: black;">便是</span>在原车保险丝出并联出一路电给降压线,若在AB保险片处取电。用5A的就<span style="color: black;">能够</span>了;而<span style="color: black;">由于</span>CD保险片为原车保险片,将取电器插在原车点烟器保险插槽就<span style="color: black;">能够</span>了。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">2.有些车型点烟器接口为常电(即12V电压)的取电<span style="color: black;">办法</span>:</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"> <span style="color: black;">针对</span>点烟器取电 <span style="color: black;">能够</span>加装一个熄火断电点烟器插座,它的基本工作原理<span style="color: black;">便是</span>检测车辆电源电压,当着车时候汽车发电机工作,车辆电源电压为14V<span style="color: black;">上下</span>时,它就有输出;当熄火车载蓄电压不足时(即电源电压为蓄电池电压12V),它就停止输出。</p><img src="http://mmbiz.qpic.cn/mmbiz_jpg/e0LqFkM39icsVOFvC52Avbb5L5fOK2KjlRiaqvmEuj6Ss5BrlBpwWQVrI5rpu7kGXPxnJKIfibgbOMSsp1kCA0aAw/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 50%; margin-bottom: 20px;">
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">针对</span>从保险盒取电的,<span style="color: black;">能够</span>改变接线点,从能够断电的保险片处接线(例如雨刷、天窗保险处取电),不要从与发动机、变速器、ABS系统、安全气囊等<span style="color: black;">关联</span>的保险器上取电。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">3.有些记录仪在<span style="color: black;">运用</span>一段时间后会<span style="color: black;">显现</span>车辆点火的时候重启<span style="color: black;">乃至</span>死机的<span style="color: black;">状况</span>。这是<span style="color: black;">因为</span>行车记录仪内置电池容量严重下降<span style="color: black;">导致</span>的,在车辆点火的时候点烟器电源断开,电池不足以维持工作<span style="color: black;">导致</span>非正常关机。对于这种问题<span style="color: black;">一样</span><span style="color: black;">能够</span><span style="color: black;">按照</span><span style="color: black;">区别</span>的取电<span style="color: black;">办法</span>采取<span style="color: black;">区别</span>的处理办法。</p>
<p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">针对</span>从点烟器接口取电的,<span style="color: black;">能够</span>加装延时接通的点烟器插座,这种插座在不着车的<span style="color: black;">状况</span>下<span style="color: black;">无</span>输出,着车之后才接通电路有电压输出;<span style="color: black;">针对</span> 从保险盒取电的,<span style="color: black;">能够</span>改变取电位置,就应找一个车辆点火时候不会断电的线路,从其上面的保险丝取电,<span style="color: black;">一样</span>不要从与发动机、变速器、ABS系统、安全气囊等<span style="color: black;">相关</span>的保险上取电,<span style="color: black;">以上</span>是取电的关键原则。</p>◇河南 王士恒
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