CN112768442A - 一种彩色外观的led灯丝及灯丝灯 - Google Patents
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Abstract
本发明属于半导体照明技术领域,公开了一种彩色外观的LED灯丝,该灯丝由四部分组成,包括:灯丝基板层1;LED芯片层2;荧光胶层3;彩色外观的感温变色胶层4,灯丝基板层设置有电极引线端子,LED芯片层固定在灯丝基板层上表面,LED芯片通过金属导线或线路实现芯片与芯片之间的电连接以及芯片与电极引线端子之间的电连接,荧光胶层涂敷在LED芯片层表面和灯丝基板层下表面,彩色外观的感温变色胶层将荧光胶层覆盖。在灯丝未点亮时,灯丝的外观颜色呈现感温变色胶层的彩色外观,但灯丝通电点亮后,随着温度上升,感温变色胶层由显色状态变为隐色状态,外观颜色逐渐隐去,而不影响芯片及荧光粉的发光颜色及亮度。
Description
技术领域
本发明属于半导体照明技术领域,具体地说涉及一种彩色外观的LED灯丝及使用这种彩色外观LED灯丝的灯丝灯。
背景技术
近些年来,LED灯丝灯能够呈现出360度的发光角度和优异的光照亮度,将其组装在球泡灯或蜡烛灯中可以获得一种近似白炽灯的发光效果,越来越受到人们的关注。
由于目前LED灯丝封装采用蓝光芯片激发黄色荧光粉复合发光的原理实现白光发射,所以在灯丝封装时将黄色荧光粉层涂敷在LED芯片上,LED灯丝的外观颜色为黄色。随着产品的推广,市场希望LED灯丝的外观颜色多种多样,比如彩色或接近传统白炽灯钨丝的灰色颜色,同时要求在灯被点亮时,又不能影响灯丝本身的发光颜色和亮度,目前市场上没有能够满足这种需求的产品。
发明内容
为此,本发明正是要解决上述技术问题,从而提出一种彩色外观的LED灯丝及使用这种彩色外观LED灯丝的灯丝灯。
为解决上述技术问题,本发明的技术方案为:
本发明提供一种彩色外观的LED灯丝,其特征在于,所述彩色外观的LED灯丝由四部分组成,包括:灯丝基板层1;LED芯片层2;荧光胶层3;彩色外观的感温变色胶层4,灯丝基板层1设置有电极引线端子,LED芯片层2固定在灯丝基板层1上表面,LED芯片通过金属导线或线路实现芯片与芯片之间的电连接以及芯片与电极引线端子之间的电连接,荧光胶层3涂敷在LED芯片层2表面和灯丝基板层1下表面,彩色外观感温变色胶层4将荧光胶层3覆盖。
作为优选,所述灯丝基板层为陶瓷基板、玻璃基板、蓝宝石基板、金属基板、FPC柔性线路基板中的一种。
作为优选,所述LED芯片层为紫光芯片、蓝光芯片中的至少一种。
作为优选,所述荧光胶层为有机胶体与荧光粉的混合物。其中,所述有机胶体为有机硅胶、有机硅树脂、环氧树脂、聚氨酯、UV树脂中的一种;所述荧光粉为钇铝石榴石荧光粉、硅酸盐荧光粉、氟化物荧光粉、氮化物荧光粉、氮氧化物荧光粉中的至少一种。
作为优选,所述彩色外观感温变色胶层为有机胶体与彩色外观温变粉材料的混合物。其中,所述有机胶体为有机硅胶、有机硅树脂、环氧树脂、聚氨酯、UV树脂中的一种;所述彩色外观温变粉材料为可逆感温变色材料,变色温度设定为30℃~80℃,在达到变色温度时实现由彩色外观的显色状态变为隐色状态。
本发明还提供一种灯丝灯,包括一密封的透光泡壳体,设置在所述透光泡壳体内的LED灯丝,以及在透光泡壳体内充填有高导热性气体介质,其特征在于,所述LED灯丝采用上述彩色外观的LED灯丝。
本发明的上述技术方案具有以下优点:
(1)LED灯丝的外观颜色呈现彩色外观,可以为蓝色、绿色、红色、黄色、橙色、紫色、黑色或接近传统白炽灯钨丝的灰色颜色等;
(2)虽然在LED灯丝未点亮时,LED灯丝的外观颜色呈现彩色外观,但这种彩色外观的灯丝通电点亮后,彩色外观的颜色并不会影响LED灯丝的发光颜色和亮度。这是因为,灯丝点亮后随着温度上升,灯丝最外层的彩色外观感温变色胶层由彩色外观的显色状态变为隐色状态,彩色外观逐渐隐去,而不影响芯片及荧光粉的发光颜色及亮度,这是LED灯丝封装中从未有的新方案。
附图说明
为了使本发明的内容更容易被清楚的理解,下面根据本发明的具体实施例并结合附图,对本发明作进一步详细的说明,其中
图1是本发明实施例所述的彩色外观的LED灯丝的结构示意图;
图2是本发明实施例所述的彩色外观的LED灯丝的横截面示意图;
具体实施方式
实施例
本实施例提供一种彩色外观的LED灯丝,其结构示意图见附图1,该灯丝的横截面示意图见附图2,所述彩色外观的LED灯丝由四部分组成,包括:灯丝基板层1;LED芯片层2;荧光胶层3;彩色外观感温变色胶层4,灯丝基板层1设置有电极引线端子,LED芯片层2固定在灯丝基板层1上表面,LED芯片通过金属导线或线路实现芯片与芯片之间的电连接以及芯片与电极引线端子之间的电连接,荧光胶层3涂敷在LED芯片层2表面和灯丝基板层1下表面,彩色外观感温变色胶层4将荧光胶层3覆盖。在本实施例中,灯丝基板层1为FPC柔性线路基板,在其它实施例中,灯丝基板层1还可以选择为陶瓷基板、玻璃基板、蓝宝石基板或金属基板;在本实施例中,LED芯片层2为蓝光芯片,在其它实施例中,LED芯片层2还可以为紫光芯片或蓝光芯片与紫光芯片混合使用;在本实施例中,荧光胶层3为有机硅胶与钇铝石榴石荧光粉、氮化物荧光粉的混合物,在其它实施例中,荧光胶层3可以为有机硅树脂、环氧树脂、聚氨酯、UV树脂中的一种与硅酸盐荧光粉、氟化物荧光粉、氮氧化物荧光粉中的至少一种的混合物;在本实施例中,彩色外观感温变色胶层4为有机硅胶与灰色外观温变粉材料组成的混合物,在其它实施例中,彩色外观感温变色胶层4可以为有机硅树脂、环氧树脂、聚氨酯、UV树脂中的一种与黑色、蓝色、绿色、红色、橙色、紫色外观温变粉材料中的一种组成的混合物;在本实施例中,所用灰色温变粉材料设定的变色温度为50℃,在其它实施例中,所用温变粉材料设定的变色温度为30℃~80℃中的任一温度值。当温度达到变色温度时,温变粉的彩色外观颜逐渐隐去,此时不影响芯片及荧光粉的发光颜色及亮度,待关灯后,温度下降,LED灯丝的外观颜色又变回原来温变粉的彩色外观。
基于上述提供的彩色外观LED灯丝制作LED灯丝灯,包括一密封的透光泡壳体,设置在所述透光泡壳体内的LED灯丝,以及在透光泡壳体内充填有高导热性氦气气体介质,其中LED灯丝采用上述制得的彩色外观LED灯丝。LED灯丝灯的外形结构可设置成A泡、C泡、ST泡、T泡、G泡及其它异形结构等,灯头采用E12、E14、E26、E27、B22、E40等,将驱动电源装在灯头内并与泡壳内的LED灯丝实现电连接。
显然,上述实施例仅仅是为清楚地说明所作的举例,而并非对实施方式的限定。对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。
Claims (9)
1.一种彩色外观的LED灯丝,其特征在于,所述彩色外观的LED灯丝由四部分组成,包括:灯丝基板层1;LED芯片层2;荧光胶层3;彩色外观的感温变色胶层4,灯丝基板层1设置有电极引线端子,LED芯片层2固定在灯丝基板层1上表面,LED芯片通过金属导线或线路实现芯片与芯片之间的电连接以及芯片与电极引线端子之间的电连接,荧光胶层3涂敷在LED芯片层2表面和灯丝基板层1下表面,彩色外观的感温变色胶层4将荧光胶层3覆盖。
2.根据权利要求1所述的彩色外观的LED灯丝,其特征在于,所述灯丝基板层为陶瓷基板、玻璃基板、蓝宝石基板、金属基板、FPC柔性线路基板中的一种。
3.根据权利要求1所述的彩色外观的LED灯丝,其特征在于,所述LED芯片层为紫光芯片、蓝光芯片中的至少一种。
4.根据权利要求1所述的彩色外观的LED灯丝,其特征在于,所述荧光胶层为有机胶体与荧光粉的混合物。
5.根据权利要求4所述的彩色外观的LED灯丝,其特征在于,所述有机胶体为有机硅胶、有机硅树脂、环氧树脂、聚氨酯、UV树脂中的一种。
6.根据权利要求4所述的彩色外观的LED灯丝,其特征在于,所述荧光粉为钇铝石榴石荧光粉、硅酸盐荧光粉、氟化物荧光粉、氮化物荧光粉、氮氧化物荧光粉中的至少一种。
7.根据权利要求1所述的彩色外观的LED灯丝,其特征在于,所述彩色外观感温变色胶层为权利要求5所述有机胶体与彩色外观温变粉材料的混合物。
8.根据权利要求7所述的彩色外观的LED灯丝,其特征在于,所述彩色外观温变粉材料为可逆感温变色材料,变色温度设定为30℃~80℃,在达到变色温度时实现由彩色外观的显色状态变为隐色状态。
9.一种灯丝灯,包括一密封的透光泡壳体,设置在所述透光泡壳体内的LED灯丝,以及在透光泡壳体内充填有高导热性气体介质,其特征在于,所述LED灯丝采用如权利要求1所述的彩色外观的LED灯丝。
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Cited By (2)
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CN114023865A (zh) * | 2021-11-09 | 2022-02-08 | 浙江英特来光电科技有限公司 | 一种灯丝和灯丝制造方法 |
WO2024067778A1 (zh) * | 2022-09-30 | 2024-04-04 | 嘉兴山蒲照明电器有限公司 | 一种led灯丝及应用所述led灯丝的球泡灯 |
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