CN110864237A - 一种柔性led紫外线光源 - Google Patents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S4/00—Lighting devices or systems using a string or strip of light sources
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Abstract
本发明公开一种柔性LED紫外线光源,包括主机、柔性控制装置和UV‑A LED探头装置;主机内部腔体设有电池电源和恒流电路板,用于控制UV‑A LED的光强;主机外部面板设有开关按钮;UV‑A LED探头装置连接柔性控制装置后引入主机;采用的UV‑A LED直接贴装于柔性装置的终端,解决传统的汞型柔性紫外光源光传输效率低的弊端,同时发挥LED光源优势,通过在其前端更换不同角度的透镜探头来改变光斑和强度大小以满足不同的检测需求。本发明实用性高,操作效率高,使用方便。
Description
技术领域
本发明涉及无损检测领域,特别涉及一种柔性LED紫外线光源。
背景技术
波长为365nm的紫外线光源(通常称作黑光灯)为荧光渗透检测和荧光磁粉检测过程中关键性辅助器材,早期为汞蒸汽原理制造的黑光灯,光源光转化效率低、功率消耗大,同时对环境污染严重,部分国家已禁止生产汞型黑光灯。随着LED技术的发展,UV-A LED光源技术逐渐成熟,国内外部分企业纷纷采用LED黑光灯取代汞型黑光灯。
发明内容
为解决上述技术问题,发明了一种柔性LED紫外线光源,具体技术方案如下:
一种柔性LED紫外线光源,包括主机、柔性控制装置和UV-A LED探头装置;
所述主机内部腔体设有电池电源和恒流电路板,用于控制UV-A LED的光强;
所述主机外部面板采用激光切割出相应尺寸的孔,安装开关按钮,用于控制电源的连接和关闭;
所述柔性控制装置采用中空的柔性钢管制作而成,钢管内安放导线;可以通过导线将恒流电源的电流传递给LED光源;
所述UV-A LED探头装置包括外壳、滤光片、透镜、LED灯珠、基板、散热装置和正、负导线;
所述LED灯珠采用回流焊焊接在与其外型尺寸相符的基板上;
从所述基板上引出正、负导线,然后将基板连接在散热装置上;
所述LED灯珠正面粘贴透镜,将所述LED灯珠和透镜封装于外壳的内部;
所述透镜前端安装一个滤光片;
所述正、负导线与柔性控制装置连接封装后引入主机内。
所述的一种柔性LED紫外线光源,其优选方案为所述主机采用电池供电,整个主机体积小巧尺寸为150×100×80。
所述的一种柔性LED紫外线光源,其优选方案为所述UV-A LED探头装置外径仅有8mm,可以伸入到零件内部空腔中配合检测。
所述的一种柔性LED紫外线光源,其优选方案为采用365nm紫外线专用滤光片ZWB2,使LED光源发出的紫外线光谱纯正,满足检测标准对光源纯度要求。
所述的一种柔性LED紫外线光源,其优选方案为所述散热装置为在探头外壳上设置散热鳍片,所述外壳和散热装置材质采用铝合金,保证LED灯珠发出的热量快速散去,保证灯珠使用寿命。
所述的一种柔性LED紫外线光源,其优选方案为采用高/径比为0.65的石英玻璃透镜,确保照射到零件表面的黑光强度满足标准要求,同时使用石英玻璃作为紫外线汇聚透镜,确保紫外线高透过率。
所述的一种柔性LED紫外线光源,其优选方案为所述基板采用热电分离紫铜基板,保证LED灯珠发出的热量快速传递到铝合金外壳上。
所述的一种柔性LED紫外线光源,其优选方案为所述LED灯珠120°发光。
一种柔性LED紫外线光源的检测过程:采用荧光参透或荧光磁粉表面检查技术对复杂结构零件内表面进行检测时,需要孔探仪和UV-A辅助光源配合。将本发明装置的探头部分和孔探仪探头部分同时放入被检测零件内腔,开启UV-A LED光源,将探头产生的UV-A光源对准被检测部件,通过孔探仪进行观察,能够满足照明需求,发现细小缺陷。
本发明的有益效果:本发明的技术方案采用UV-A LED贴装技术、散热技术、恒流驱动技术、柔性控制技术,实现复杂结构零件内表面无损检测的辅助照明,光源具备尺寸小巧,使用方便,即开即亮、光转化效率高、能源消耗少等优点;采用紫外LED直接贴装与柔性装置的终端,替代了传统的柔性汞型紫外线光源,解决传统给的汞型柔性紫外光源光传输效率低的弊端,同时发挥LED光源优势,通过在其前端更换不同角度的透镜来改变光斑和强度大小以满足不同的检测需求;具有功率小、成本低、污染少、应用灵活等优势。
附图说明
图1为一种柔性LED紫外线光源结构示意图;
图2为UV-LED探头装置结构示意图;
图3为检测示意图。
结图中,1-主机、2-柔性控制装置、3-UV-LED探头装置、4-电源开关、5-外壳、6-滤光片、7-透镜、8-LED灯珠、9-基板、10-散热装置、11-正、负导线、12-孔探仪、13-孔探仪探头。
具体实施方式
如图1-3所示一种柔性LED紫外线光源,包括主机1、柔性控制装置2和UV-LED探头装置3;
所述主机1内部腔体设有电池电源和恒流电路板,用于控制UV-A LED的光强;
所述主机1外部面板采用激光切割出相应尺寸的孔,安装开关按钮4,用于控制电源的连接和关闭;
所述柔性控制装置2采用中空的柔性钢管制作而成,钢管内安放导线;可以通过导线将恒流电源的电流传递给LED光源;
所述UV-A LED探头装置3包括外壳5、滤光片6、透镜7、LED灯珠8、基板9、散热装置10和正、负导线11;
所述LED灯珠8采用回流焊焊接在与其外型尺寸相符的基板9上;
从所述基板9上引出正、负导线11,然后将基板9连接在散热装置10上;
所述LED灯珠8正面粘贴透镜7,将所述LED灯珠8和透镜7封装与外壳5的内部;
所述透镜7前端安装一个滤光片6;
所述正、负导线11与柔性控制装置2连接封装后引入主机1内。
所述主机1采用电池供电,整个主机1体积小巧尺寸为150×100×80。
所述UV-A LED探头装置3外径仅有8mm,可以伸入到零件内部空腔中配合检测。
采用365nm紫外线专用滤光片6ZWB2,使LED光源发出的紫外线光谱纯正,满足检测标准对光源纯度要求。
所述散热装置10为在外壳5上设置散热鳍片,所述外壳5和散热装置10材质采用铝合金,保证LED灯珠8发出的热量快速散去,保证灯珠使用寿命。
采用高/径比为0.65的石英玻璃透镜7,确保照射到零件表面的黑光强度满足标准要求,同时使用石英玻璃作为紫外线汇聚透镜,确保紫外线高透过率。
所述基板9采用热电分离紫铜基板,保证LED灯珠8发出的热量快速传递到铝合金外壳5上。
所述LED灯珠8为120°发光。
一种柔性LED紫外线光源的检测过程:采用荧光渗透或荧光磁粉表面检查技术对复杂结构零件内表面进行检测时,需要孔探仪12和UV-A辅助光源配合。将本发明装置的探头部分和孔探仪探头13部分同时放入被检测零件内腔,开启UV-A LED光源,将探头产生的UV-A光源对准被检测部件,通过孔探仪进行观察,能够满足照明需求,发现细小缺陷。
Claims (8)
1.一种柔性LED紫外线光源,其特征在于,包括主机、柔性控制装置和UV-A LED探头装置;
所述主机内部腔体设有电池电源和恒流电路板,用于控制UV-A LED的光强;
所述主机外部面板采用激光切割出相应尺寸的孔,安装开关按钮,用于控制电源的连接和关闭;
所述柔性控制装置采用中空的柔性钢管制作而成,钢管内安放导线;可以通过导线将恒流电源的电流传递给LED光源;
所述UV-A LED探头装置包括外壳、滤光片、透镜、LED灯珠、基板、散热装置和正、负导线;
所述LED灯珠采用回流焊焊接在与其外型尺寸相符的基板上;
从所述基板上引出正、负导线,然后将基板连接在散热装置上;
所述LED灯珠正面粘贴透镜,将所述LED灯珠和透镜封装于探头外壳的内部;
所述透镜前端安装一个滤光片;
所述正、负导线与柔性控制装置连接封装后引入主机内。
2.根据权利要求1所述的一种柔性LED紫外线光源,其特征在于,所述主机采用电池供电,整个主机体积小巧尺寸为150×100×80。
3.根据权利要求1所述的一种柔性LED紫外线光源,其特征在于,所述UV-A LED探头装置外径仅有8mm,可以伸入到零件内部空腔中配合检测。
4.根据权利要求1所述的一种柔性LED紫外线光源,其特征在于,采用365nm紫外线专用滤光片ZWB2,使LED光源发出的紫外线光谱纯正,满足检测标准对光源纯度要求。
5.根据权利要求1所述的一种柔性LED紫外线光源,其特征在于,所述散热装置为在外壳上设置散热鳍片,所述外壳和散热装置材质采用铝合金,保证LED灯珠发出的热量快速散去,保证灯珠使用寿命。
6.根据权利要求1所述的一种柔性LED紫外线光源,其特征在于,采用高/径比为0.65的石英玻璃透镜,确保照射到零件表面的黑光强度满足标准要求,同时使用石英玻璃作为紫外线汇聚透镜,确保紫外线高透过率。
7.根据权利要求1所述的一种柔性LED紫外线光源,其特征在于,所述基板采用热电分离紫铜基板,保证LED灯珠发出的热量快速传递到铝合金外壳上。
8.根据权利要求1所述的一种柔性LED紫外线光源,其特征在于,所述LED灯珠120°发光。
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CN111307017A (zh) * | 2020-03-31 | 2020-06-19 | 中国航发动力股份有限公司 | 一种测量照度时确定检测距离的方法 |
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