CN102121576A - 一种led灯 - Google Patents
一种led灯 Download PDFInfo
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Abstract
一种LED灯,其特征在于它包括:灯壳(6);圆形金属管(3),其上端部与所述灯壳的尾部固定,其下端部与绝缘件(4)固定,并在其上端附近的内部固定有金属连接件(2);棱柱状金属芯柱(1),它位于所述灯壳的内部,其下端与所述金属连接件固定,并在它的顶面和每个侧面上都设置有至少一个LED光源(5);灯头(8),它固定于所述绝缘件的下端;控制电路装置(7),它设置在所述圆形金属管的内部。本发明装置具有结构紧凑、散热性能好、光照范围大的特点,还具有类似白炽灯的美观形状。
Description
技术领域
本发明涉及一种灯,特别涉及一种LED照明灯。
背景技术
近年来,LED技术飞速发展,LED已经广泛应用于指示、背光源等领域。目前将LED灯发展成为用于普通照明的产品已成为人们急切追求的目标。事实上要用LED灯替代现有的白炽灯、节能灯,使其更节能、更环保、更高效还需要解决许多技术问题,特别是现有的LED灯通常其散热效果差,光效低、寿命短,还难以满足日常照明的需要。
发明内容
本发明的目的是要提供一种结构紧凑、具有较高散热性能的LED灯。本发明的另一目的是要提供一种光照范围大的LED灯。本发明的又一目的是要提供一种能替代白炽灯的照明产品。
为了达到上述目的,本发明采用如下技术方案:按照本发明,一种LED灯,其特征在于它包括:一个灯壳;一个圆形金属管,其上端部与所述灯壳的尾部固定,其下端部与一个绝缘件固定,并在其上端附近的内部固定有一个金属连接件;一个棱柱状金属芯柱,它位于所述灯壳的内部,其下端与所述金属连接件固定,并在它的顶面和每个侧面上都设置有至少一个LED光源;一个灯头,它固定于所述绝缘件的下端;一个控制电路装置,它设置在所述圆形金属管的内部,其两个输入端与所述灯头的两个电极进行电连接,其两个输出端与由所述LED光源所构成的负载的两个输入端进行电连接。
所述的LED光源是指单个LED或LED模组。
为了减少LED灯的重量并降低其成本,在所述棱柱状金属芯柱的中部可以设置沿着柱轴方向的空腔,并在所述金属连接件的中部设置通孔。
所述的金属连接件可以是圆形金属连接件,也可以是其它形状的金属连接件。
所述的灯壳可以是泡形灯壳,也可以是其它形状的灯壳。所述的灯壳可以是玻璃灯壳,也可以是塑料灯壳,还可以是其它透光材料制成的灯壳。在所述灯壳的内部可以涂上某种颜色,如在玻璃灯壳内部涂上白色使之成为涂白色的灯壳。所述的灯壳还可以进行磨沙处理以改变其光的反射特性,如在玻璃灯壳上可以进行磨沙处理。
为了增加其散热效果,在所述圆形金属管的外表面上可以设置散热片(或称为散热棱)。其散热片可以是沿着圆形金属管上下分布的条形散热片,也可以是环绕圆形金属管分布的圆环形散热片。
为了便于通风散热,在所述圆形金属管上可以设置通风孔;在所述绝缘件上也可以设置通风孔。
所述的棱柱状金属芯柱可以是三棱柱状金属芯柱,可以是四棱柱状金属芯柱,也可以是五棱柱状金属芯柱,还可以是其它棱柱状金属芯柱。
所述的棱柱状金属芯柱、金属连接件和圆形金属管通常采用模具一体化制造,从而形成一体化的结构,这样即提高了其生产效率,又提高了其LED灯的散热效果。关于棱柱状金属芯柱、金属连接件和圆形金属管所使用的材料通常是铝材料或铝合金材料,也可以是其它金属材料。
为了使所述LED光源所产生的热量能有效传递给所述棱柱状金属芯柱,所述LED光源的底部通常使其与所述棱柱状金属芯柱的某个平面直接接触固定,或是通过导热粘结剂使其接触固定。
在所述棱柱状金属芯柱上可以设置固定具有单个或多个安装孔位的PCB板,所述LED光源可以穿过位于该PCB板上的安装孔位固定于所述棱柱状金属芯柱上,各个LED光源可以通过PCB板的图形金属线进行电连接;在所述棱柱状金属芯柱上也可以设置图形金属线并在图形金属线与所述棱柱状金属芯柱之间设置绝缘层,所设置的各个LED光源可以通过其图形金属线进行电连接。
所述的灯头可以采用螺口型灯头,也可以采用卡口型灯头,还可以采用其它类型的灯头。
本发明具有如下积极效果:
本发明的LED灯,由于其LED光源设置在棱柱状金属芯柱的顶面和各个侧面上,能把LED光源所产生的热量有效地传递给所述的棱柱状金属芯柱,而棱柱状金属芯柱、金属连接件和圆形金属管三者紧密固定在一起,因此,其热量也能有效地传递给所述的圆形金属管,由于其圆形金属管表面积较大并直接与周围空气对流交换热量,所以本发明装置具有很好的散热效果;另外,由于其LED光源设置在棱柱状金属芯柱的顶面和各个侧面上,其发出的光线显然比较分散、其光照范围较大;最后,本发明装置的结构紧凑,具有生产效率高、生产成本低的特点,同时还具有类似白炽灯的美观形状。
附图说明
图1是本发明的LED灯的示意图;
图2展示了本发明的LED灯的第二个实施例。
具体实施方式
图1是本发明的LED灯的示意图。从图中可见,本发明装置包括:灯壳6;圆形金属管3,其上端部与灯壳6的尾部固定,其下端部与绝缘件4固定,并在其上端附近的内部固定有金属连接件2;四棱柱状金属芯柱1,它位于灯壳6的内部,其下端与金属连接件2固定,在它的顶面上设置了一个LED光源5,在它的四个侧面上各设置了一个LED光源5;螺口型灯头8,它固定于绝缘件4的下端;控制电路装置7,它设置在圆形金属管3的内部,其两个输入端与螺口型灯头8的两个电极进行电连接(图中未画出),其两个输出端与由五个LED光源所构成的负载的两个输入端进行电连接(图中未画出)。
在本实施例中:四棱柱状金属芯柱1、金属连接件2和圆形金属管3三者采用铝材料使用模具一体化制造而成;灯壳6为一泡形玻璃灯壳。
当螺口型灯头8通电时,控制电路装置7为所述的LED光源5提供工作电流,LED光源5工作时所产生的热量主要传递给四棱柱状金属芯柱1,再通过金属连接件2传递给圆形金属管3,然后与周围的空气进行热交换而传递到周围的环境中去,该种结构具有较高的散热性能。从图中也容易看出,该种LED灯的光照范围大,其结构紧凑并具有类似白炽灯的美观形状。
图2示出了本发明的LED灯的第二个实施例。从图中很容易看出,该实施例与图1所示的第一个实施例很相似,只是在本实施例中,棱柱状金属芯柱1为三棱柱状金属芯柱,在它的顶面和三个侧面上共设置了四个LED光源5。
尽管已经展示和描述了目前认为是优选的本发明的实施例,但显而易见,本领域的技术人员可以进行各种改变和改进,而不背离由所附权利要求书所限定的本发明的范围。
Claims (10)
1.一种LED灯,其特征在于它包括:
一个灯壳(6);
一个圆形金属管(3),其上端部与所述灯壳的尾部固定,其下端部与一个绝缘件(4)固定,并在其上端附近的内部固定有一个金属连接件(2);
一个棱柱状金属芯柱(1),它位于所述灯壳的内部,其下端与所述金属连接件固定,并在它的顶面和每个侧面上都设置有至少一个LED光源(5);
一个灯头(8),它固定于所述绝缘件的下端;
一个控制电路装置(7),它设置在所述圆形金属管的内部,其两个输入端与所述灯头的两个电极进行电连接,其两个输出端与由所述LED光源所构成的负载的两个输入端进行电连接。
2.如权利要求1所述的一种LED灯,其特征在于,在所述棱柱状金属芯柱的中部设置有沿着柱轴方向的空腔,并在所述金属连接件的中部设置有通孔。
3.如权利要求1所述的一种LED灯,其特征在于,所述金属连接件为圆形金属连接件。
4.如权利要求1所述的一种LED灯,其特征在于,所述灯壳为泡形灯壳。
5.如权利要求1所述的一种LED灯,其特征在于,所述灯壳为玻璃灯壳。
6.如权利要求1所述的一种LED灯,其特征在于,所述灯壳为塑料灯壳。
7.如权利要求1所述的一种LED灯,其特征在于,在所述圆形金属管的外表面上还设置有散热片。
8.如权利要求1所述的一种LED灯,其特征在于,在所述棱柱状金属芯柱上设置有图形金属线并在图形金属线与所述棱柱状金属芯柱之间设置有绝缘层,所述LED光源通过图形金属线进行电连接。
9.如权利要求1至8之一所述的一种LED灯,其特征在于,所述棱柱状金属芯柱为四棱柱状金属芯柱。
10.如权利要求1至8之一所述的一种LED灯,其特征在于,所述棱柱状金属芯柱为三棱柱状金属芯柱。
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