CN104613332A - 发光二极管节能灯 - Google Patents
发光二极管节能灯 Download PDFInfo
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- CN104613332A CN104613332A CN201310535511.9A CN201310535511A CN104613332A CN 104613332 A CN104613332 A CN 104613332A CN 201310535511 A CN201310535511 A CN 201310535511A CN 104613332 A CN104613332 A CN 104613332A
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- Prior art keywords
- radiator
- saving lamp
- led energy
- emitting diode
- lamp
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- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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[Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glasses Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
Abstract
Description
技术领域
[0001] 本发明涉及发光二极管(LED)照明领域,更具体地涉及一种发光二极管节能灯。
背景技术
[0002] 图1为示出现有技术中的一种发光二极管节能灯结构的部分剖面立体图。图2为示出现有技术中的一种发光二极管节能灯的U型管直线部结构的剖面图。该节能灯包括连接电源的灯头10、内藏电源驱动器(未示出)的灯座20、透明玻璃的U型管灯罩30、整体容纳在U型管灯罩30内部的发光二极管40和用于贴附发光二极管40的印刷电路板50。从图1和图2中可以看到,贴附有发光二极管40的印刷电路板50的光源部件是直接插在U型管灯罩30中。
[0003] 图1这种结构的发光二极管节能灯由于只是将贴有发光二极管40的印刷电路板50直接插在U型管灯罩30的腔内,整个光源部件都被U型管灯罩30完全包围,该结构不利于发光二极管40向外散热,使发光二极管40温升较高,导致发光效率低,并不是十分理想,仍待改进。
发明内容
[0004] 为克服现有技术中的不足,本发明提供了一种发光二极管节能灯,该发光二极管节能灯包括:灯头;内藏电源驱动器的灯座;固定在灯座上的U型管灯罩;以及具有发光二极管的光源部件;其中发光二极管节能灯还包括连接光源部件以进行散热的散热器,U型管灯罩具有直线部,直线部上设置有开口部,散热器固定在开口部中,以使散热器露出在U型管灯罩之外。
[0005] 根据本发明的一个方面,散热器具有相对设置的两个外侧卡槽,U型管灯罩的开口部设有插入块,插入块插设在散热器的外侧卡槽中。
[0006] 根据本发明的又一个方面,光源部件还包括印刷电路板,发光二极管贴装在印刷电路板上,印刷电路板固定到散热器上。较佳地,散热器具有相对设置的两个内侧卡槽,印刷电路板插入到散热器的内侧卡槽中得以固定。
[0007] 根据本发明的又一个方面,发光二极管节能灯包括二个、三个或四个的U型管灯罩,每个U型管灯罩的直线部均设置有开口部,并且每个开口部中均固定有散热器。较佳地,散热器设置在U型管灯罩的直线部的朝向多个直线部围绕的中间部位的一侧上。
[0008] 根据本发明的又一个方面,U型管灯罩由塑料制成。该塑料可以为透明塑料或者含扩散剂的塑料。
[0009] 根据本发明的又一个方面,散热器由金属制成。
[0010] 根据本发明的又一个方面,灯座上设有孔,U型管灯罩的直线部和散热器被接纳在孔中。
[0011] 根据本发明的又一个方面,发光二极管有多个,多个发光二极管沿U型管灯罩的直线部的延伸方向直线排列。
[0012] 采用根据本发明的发光二极管节能灯,由于散热器露出U型管灯罩之外,因此能够达到极佳的散热效果,从而降低发光二极管的温升,提高发光二极管的发光效率,延长节能灯的使用寿命。
[0013] 此外,本发明的灯罩由塑料制成,不易破裂,使用安全;同时,还易于在灯罩材料中添加扩散剂,改善光的品质。
[0014] 另一方面,散热器是由金属制成,它与灯罩连接在一起,即使灯罩由塑料制成,也能够确保灯罩具备较高的整体强度。
[0015] 此外,所有散热器朝向多个直线部围绕的中间部位,因此,尽管这些散热器都露出于灯罩之外,但对于节能灯整体发光不会产生负面影响。
附图说明
[0016] 图1示出了现有技术中的一种发光二极管节能灯部分剖切的立体图。
[0017] 图2示出了现有技术中的一种发光二极管节能灯U型管直线部的剖面图。
[0018] 图3示出了本发明第一实施例的发光二极管节能灯部分剖切的立体图。
[0019] 图4示出了本发明第一实施例的发光二极管节能灯U型管直线部的剖面图。
[0020] 图5示出了本发明第二实施例的发光二极管节能灯立体图。
[0021] 图6示出了本发明第三实施例的发光二极管节能灯立体图。
具体实施方式
[0022] 下面结合具体实施例和附图对本发明作进一步说明,在以下的描述中阐述了更多的细节以便于充分理解本发明,但是本发明显然能够以多种不同于此描述的其它方式来实施,本领域技术人员可以在不违背本发明内涵的情况下根据实际应用情况作类似推广、演绎,因此不应以此具体实施例的内容限制本发明的保护范围。
[0023] 图3示出了本发明第一实施例的发光二极管节能灯的立体图,其中U型管灯罩300的弯管部分320被剖切移位以示出内部光源部件。图4示出了本发明第一实施例的发光二极管节能灯的U型管灯罩300的直线部310的剖面图。如图3所示,根据本发明的发光二极管节能灯整体上包括连接到外部电源(未示出)的灯头100、内藏电源驱动器(未示出)的灯座200、固定在灯座200上的U型管灯罩300、具有发光二极管600的光源部件以及连接光源部件以进行散热的散热器400。
[0024] 从图3和图4中可以清楚地看到散热器400和U型管灯罩300的详细结构。具体而言,U型管灯罩300由两个直线部310和连接两个直线部310的弯管部320构成。在U型管灯罩300的直线部310设置有开口部,如图4所示,灯罩300的直线部310从剖面图上看为具有开口部的圆弧311。开口部的形状与散热器400的形状是相匹配的,散热器400被固定到这一开口部中,由此散热器400从灯罩300向外露出,使得从发光二极管600发出的热量能够充分地向外消散,故能够达到极佳的散热效果。
[0025] 图4详细示出了散热器400和U型管灯罩300的一种较佳的连接方式。散热器400具有相对设置的两个外侧卡槽410,而U型管灯罩300的开口部设有相对应的插入块312,安装散热器400时,将开口部的插入块312插设在散热器400的外侧卡槽410中,从而使U型管灯罩300与散热器400彼此固定。但应该认识到,散热器400和U型管灯罩300也可采用其它的连接方式:例如可以在灯罩上设置卡接凸部,而在散热器上设置形状与之匹配的卡接凹部;或者也可以将灯罩与散热器整体模制在一起。
[0026] 此外,如图3所示,灯座200上设置有若干孔210,孔210的数量与U型管灯罩300的直线部310的数量一致,U型管灯罩300的直线部310被接纳到灯座200上的孔210中。较佳地,散热器400和U型管灯罩300的直线部310 —同被接纳到灯座200的孔210中。
[0027] 根据本发明的第一实施例,光源部件还包括印刷电路板500,发光二极管600贴装在印刷电路板500上,印刷电路板500面接触地固定到散热器400上。这样,发光二极管600发出的热量通过印刷电路板500传导到散热器400,再由散热器400向着灯罩300外部消散。如图4所示,散热器400还设置有相对设置的两个内侧卡槽420,印刷电路板500直接插入到两个内侧卡槽420中。但应该认识到,散热器400和印刷电路板500也可采用其它的连接方式,例如可以用导热的粘合剂将印刷电路板500贴装到散热器400上。
[0028] 图示的光源部件仅为示例,光源部件结构的形式不限于此,也可以采用其它任何合适的光源结构,光源部件也可以不具有印刷电路板,例如采用COB封装形式的线条光源(所谓COB封装就是将裸芯片用导电或非导电胶粘附在互连基板上,然后进行引线键合实现其电气连接)。
[0029] 此外,光源部件较佳地包括多个发光二极管600 (图中仅不出一个),这些发光二极管600沿U型管灯罩300的直线部310的延伸方向直线排列。在如图4所示设有印刷电路板500的情形中,多个发光二极管600直线排列在印刷电路板500上。
[0030] 较佳地,U型管灯罩300可以由透明塑料制成,例如PC (聚碳酸酯)或PMMA (聚甲基丙烯酸甲酯),也可以由含扩散剂的塑料制成。散热器400 —般由导热效果优良的金属制成,通常可以用铝来制造散热器400。此外。灯座200通常由而耐温阻燃塑料制成,例如(聚碳酸酯)PC或PBT (聚对苯二甲酸丁二醇酯)。
[0031] 图3所示的节能灯具有两个并排设置U型管灯罩300,每个U型管灯罩300都具有两个直线部310,每个直线部310的开口部又都设置一个露出在灯罩300之外的散热器400。为了不影响节能灯发出的照明光线,各个散热器400应当尽量朝内设置。具体而言,若将四个直线部310围绕着的一个部位称作“中间部位”,则设置在U型管灯罩300的直线部310上的散热器400较佳地位于朝着该中间部位的一侧上。
[0032] 图5示出了根据本发明第二实施例的发光二极管节能灯的立体图。图5所示的节能灯具有三个彼此角度设置的U型管灯罩300,较佳地,这些灯罩300围绕着灯座中心定向成相邻的两两之间形成60度。每个U型灯罩300同样也具有两个直线部310,每一个直线部310的开口部也都设置一个露出在灯罩300之外的散热器400。图5所示的节能灯共计有6个散热器400,这些散热器400也都朝内设置,即设置在灯罩300的直线部310的朝着中间部位的一部分上。
[0033] 图6示出了根据本发明第三实施例的发光二极管节能灯的立体图。图6所示的节能灯具有四个彼此成角度设置的U型管灯罩300,较佳地,这些灯罩300围绕着灯座中心定向成相邻的两两之间形成90度。每个U型灯罩300同样也具有两个直线部310,每一个直线部310的开口部也都设置一个露出在灯罩300之外的散热器400。图6所示的节能灯共计有8个散热器400,这些散热器400也都朝内设置,即设置在灯罩300的直线部310的朝着中间部位的一部分上。
[0034] 采用根据本发明的发光二极管节能灯,由于散热器400露出U型管灯罩300之外,因此能够达到极佳的散热效果,降低发光二极管的温升,提高发光二极管600的发光效率,延长节能灯的使用寿命。
[0035] 此外,本发明的灯罩300由塑料制成,不易破裂,使用安全;同时,还易于在灯罩300材料中添加扩散剂,改善光的品质。
[0036] 另一方面,散热器400是由金属制成,它与灯罩300连接在一起,即使灯罩300由塑料制成,也能够确保灯罩300有较高的整体强度。
[0037] 此外,所有散热器400朝向多个直线部310围绕的中间部位,因此,尽管这些散热器400都露出于灯罩300之外,但对于节能灯整体发光不会产生负面影响。
[0038] 本发明虽然以较佳实施例公开如上,但其并不是用来限定本发明,任何本领域技术人员在不脱离本发明的精神和范围内,都可以做出可能的变动和修改。因此,凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何修改、等同变化及修饰,均落入本发明权利要求所界定的保护范围之内。
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