光子治疗仪故障分析（型号普门 Carnation-86）

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                    <section><section powered-by="gulangu"><section><section><p><img src="image/20201019/01a3600707683d65e6d0690a74ba1811_1.gif" /></p></section></section></section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><p>故障现象</p></section></section></section></section></section></section></section><section powered-by="gulangu"><section><section><p>&nbsp; &nbsp; &nbsp; 在运行过程中红光灯正常，蓝光灯不工作。</p></section></section></section><section powered-by="gulangu"><section><section><section><section powered-by="gulangu"><section><section><p>故障分析及处理</p></section></section></section></section></section></section></section><section powered-by="gulangu"><section><section><p>1、&nbsp;检查电源系统及控制系统均正常工作，故初步判断故障为照射头的LED故障。拔掉照射头位置插头，拆开外壳做进一步检测。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/255ea30648f514eceeaa5d6f7bdb42b8_2.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>2、拆后盖上电检查时发现散热风扇不工作（可能未达到开启条件），检查供电且风扇供电正常（已开启），散热风扇故障。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/17db8888166d53968290d5ae3d9e0eeb_3.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>3、检查蓝光灯电源输出是否正常，棕色为共用地线，红线为红光灯电源线，蓝色为蓝光灯电源线。开启后蓝光灯供电30V正常，因此故障可确认为蓝光LED烧坏。由于LED工作时会产生大量的热，故障原因可能为散热风扇停机导致LED温度过高造成。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/0874170650fd627bae8d82edddf24e54_4.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/ac56d46ec25e19f410684aae9006a281_5.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p>4、拆下散热模块即可更换LED模块。红光波长为640nm，蓝光波长为460nm. 注意：更换LED模块需重新涂导热硅脂，确保散热效果达到最佳。</p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/294e2f6de4889ca8fb4208874a261576_6.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p><img src="image/20201019/3f12da1e12f968fd8659dd94af782046_7.jpg" /></p></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p>欢</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>迎</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>关</p></section></section></section></section><section><section powered-by="gulangu"><section><section><p>注</p></section></section></section></section></section></section><section powered-by="gulangu"><section><section><p><br  /></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><p><img src="image/20201019/040606dc82f14a7438c73d192dae21b6_8.jpg" /></p></section></section></section></section><section><section powered-by="gulangu"><section><section></section></section></section></section><section><section powered-by="gulangu"><section><section><p>关注我们</p><p>一起涨姿势！</p></section></section></section></section></section></section></section>