WO2014063446A1 - 一种led柔性灯带结构 - Google Patents

一种led柔性灯带结构 Download PDF

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Publication number
WO2014063446A1
WO2014063446A1 PCT/CN2013/070030 CN2013070030W WO2014063446A1 WO 2014063446 A1 WO2014063446 A1 WO 2014063446A1 CN 2013070030 W CN2013070030 W CN 2013070030W WO 2014063446 A1 WO2014063446 A1 WO 2014063446A1
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WO
WIPO (PCT)
Prior art keywords
led
cladding layer
flexible
circuit board
light
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Application number
PCT/CN2013/070030
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English (en)
French (fr)
Inventor
樊邦扬
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鹤山丽得电子实业有限公司
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Publication of WO2014063446A1 publication Critical patent/WO2014063446A1/zh

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Classifications

    • 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
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/22—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the utility model relates to the field of decorative lighting, in particular to an LED flexible lamp strip structure.
  • the existing LED flexible lamp strip structure is such that the LED is soldered on the flexible circuit board to form an illuminant, and a waterproof coating layer is disposed on the periphery of the illuminant.
  • LED flexible strips have been widely used in furniture, automobiles, advertising, lighting, ships and home decoration industries, such as urban contours including buildings, advertising walls, signboards, and irregular design. Since LED flexible strips are mostly used outdoors, there is a high demand for waterproof performance.
  • the traditional LED flexible lamp strips have the following waterproofing methods: Epoxy, direct sleeve, sleeve and potting resin, U-groove and potting resin.
  • the purpose of the utility model is to provide an LED flexible lamp strip to solve the problems of complicated process or poor waterproof performance of the LED flexible lamp strip produced by the conventional method.
  • the LED flexible lamp strip of the present invention adopts the following scheme: an LED flexible lamp strip comprising an illuminant and a flexible plastic covering layer, the illuminating body comprising a flexible circuit board and an LED disposed on the flexible circuit board
  • the coating layer is composed of an inner cladding layer and an outer cladding layer disposed on a periphery of the inner cladding layer; the inner layer of the inner cladding layer is provided with a through hole along a length thereof, and the through hole is The hole is provided with a slit extending through the cladding layer along its length direction, and the flexible circuit board of the soldered LED is placed in the through hole of the inner cladding layer through the slit.
  • a metal strand is disposed in an inner wall of the inner cladding layer on both sides of the flexible circuit board.
  • the outer cover layer is coated on the periphery of the inner cover layer by an extrusion molding process.
  • the inner cladding layer and the outer cladding layer are flexible light transmissive materials having a light-mixing substance, which can make the light emitted by the LED more uniform and soft.
  • metal strands are electrically connected in parallel with the circuits on the flexible circuit board.
  • the LED is a chip LED.
  • the utility model can conveniently insert the flexible light-emitting panel into the inner cladding layer by forming the inner cladding layer into a flexible rubber strip having a cavity inside and a slit extending through the longitudinal direction thereof.
  • the metal strand is integrally formed with the inner cladding layer, the metal strand is embedded in the cladding layer, which can well fix the position of the metal strand, prevent the metal strand from short-circuiting with the flexible light-emitting panel, and burn out the LED.
  • the outer cladding layer is coated with an outer coating layer to completely seal the inner cladding layer and all the components therein, thereby achieving a good waterproof effect. Because the inner and outer coating layers are all flexible light-transmitting materials containing light-mixing materials, not only the light-mixing effect is achieved, but also various devices inside the cladding layer are protected.
  • FIG. 1 is a perspective view of a flexible light-emitting panel of an embodiment of the present invention.
  • 2 is a perspective view of the inner cladding layer and the metal stranded wire in one embodiment of the present invention.
  • 3 is a schematic view showing the electrical connection of a metal stranded wire and a flexible light-emitting panel in parallel according to an embodiment of the present invention.
  • 4 is a perspective structural view of an embodiment of the present invention.
  • Fig. 5 is an enlarged view of a region A in Fig. 4.
  • Figure 6 is a cross-sectional view of a cross section of an embodiment of the present invention.
  • an LED flexible lamp strip of the embodiment includes an illuminant and a flexible plastic covering layer, and the illuminating body comprises a flexible circuit board 3 and an LED 6 disposed on the flexible circuit board 3 .
  • the coating layer is composed of an inner cladding layer 2 and an outer cladding layer 1 disposed on the periphery of the inner cladding layer 2; the inner portion of the inner cladding layer 2 is provided with a through hole 8 along a length thereof, and the through hole is provided.
  • the hole 8 is provided with a slit 9 penetrating the cladding layer along its length, and the flexible circuit board 3 of the soldered LED 6 is placed in the through hole 8 of the inner cladding layer 2 through the slit 9.
  • the inner sheath layer 2 is provided with metal strands 4 in the inner walls of the two sides of the flexible circuit board 3.
  • the metal strands 4 are integrally formed with the inner cladding layer 2, and the metal strands 4 are embedded in the inner cladding layer.
  • the position of the metal strand 4 can be well fixed, and the short circuit of the metal strand 4 and the flexible light-emitting panel 3 can be prevented, and the LED 6 can be burned out.
  • the outer cover layer 1 is coated on the outer periphery of the inner cover layer 2 by an extrusion molding process, and the inner cover layer 2 and all the devices therein can be completely sealed and coated, thereby achieving a good waterproof effect.
  • the inner cladding layer 2 and the outer cladding layer 1 are flexible light transmissive materials having a light-mixing substance, which can make the light emitted by the LED 6 more uniform and soft.
  • the metal strand 4 is electrically connected in parallel with the circuit on the flexible circuit board 3.
  • the LED 6 is a chip-type LED, which is convenient for mechanical automatic production.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Led Device Packages (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种LED柔性灯带包括发光体和透性塑料包覆层。所述发光体包括柔性电路板（3）和设置在柔性电路板（3）上的LED（6）。所述包覆层由内包覆层（2）和设置于内包覆层（2）外围的外包覆层（1）组成。所述内包覆层（2）的内部沿其长度方向设有通孔（8），所述通孔（8）沿其长度方向设有贯穿包覆层的开缝（9）。焊接好LED（6）的柔性电路板（3）通过开缝（9）置于内包覆层（2）的通孔（8）内。该LED柔性灯带很好地解决了以传统方法生产LED灯条存在的工艺复杂或防水性能差等问题。

Description

一种LED柔性灯带结构
技术领域
本实用新型涉及装饰照明领域，尤其涉及一种LED柔性灯带结构。
背景技术
现有的LED柔性灯带结构为LED焊接于柔性电路板上形成发光体，在发光体外围设有防水包覆层。LED柔性灯带已经广泛应用于家具、汽车、广告、照明、轮船以及家庭装修等行业，如城市轮廓亮化包括楼宇、广告墙、招牌、不规则设计体的装饰。由于LED柔性灯带大多应用于室外，因此对防水性能有很高的要求。传统的LED柔性灯带的防水方法大概有如下几类：滴胶、直接套套管、套套管并灌封树脂、U型槽并灌封树脂，在这些方法中，滴胶与U型槽灌封树脂的生产工艺相对简单，但是由于胶水或树脂这些裸露在外表面的材料材质比较松软，在长期的暴晒或雨水侵蚀下，容易损坏或者出现裂缝。而直接套套管虽然防水性能不错，但是没有加入混光层因此光线不够均匀、柔和，而套管加灌封树脂的方法虽然很好地解决了上述出光不柔和等问题，但是工艺复杂，因为LED柔性灯带通常需要一定的长度，当长度越长，套套管也就越麻烦。因此，寻求一种简单而高效的LED柔性灯带防水结构是这个领域的迫切需求。
实用新型内容
本实用新型的目的是提供一种LED柔性灯带，以解决用传统方法生产LED柔性灯带所存在的工艺复杂或防水性能差等问题。
本实用新型的一种LED柔性灯带所采用的方案为：一种LED柔性灯带，包括发光体和柔性塑料包覆层，所述发光体包括柔性电路板和设置在柔性电路板上的LED，其特征在于：所述包覆层由内包覆层和设置于内包覆层外围的外包覆层组成；所述内包覆层的内部沿其长度方向设有通孔，所述通孔沿其长度方向设有贯穿包覆层的开缝，所述焊接好LED的柔性电路板通过开缝置于内包覆层的通孔内。
进一步地，所述内包覆层的位于柔性电路板两侧面的内壁内设有金属绞线。
进一步地，所述外包覆层通过挤出成型工艺包覆于内包覆层外围。
进一步地，所述的内包覆层和外包覆层为具有混光物质的柔韧性透光材料，能将LED发出的光线变得更均匀、柔和。
进一步地，所述的金属绞线与柔性电路板上的电路并联电连接。
进一步地，所述的LED为贴片式LED。
有益效果
本实用新型通过将内包覆层制成内部是空腔且贯通其长度方向有一开缝的柔性胶条，可以把柔性发光灯板很方便地塞入内包覆层内。同时因为金属绞线与内包覆层一体成型，金属绞线嵌入于包覆层，可以很好地固定金属绞线的位置，防止金属绞线与柔性发光灯板发生短路、烧坏LED等情况。最后，在内包覆层外部包覆一层外包覆层可以将内包覆层及其内的的所有器件完全地密封包覆，起到了很好的防水效果。因为内、外包覆层均为包含有混光物质的柔韧性透光材料，不但起到了混光效果，而且何护了包覆层内部的各种器件。
附图说明
图1是本实用新型实施例的柔性发光灯板立体图。
图2是本实用新型实施例的内包覆层及金属绞线一体成型后的立体示意图。
图3是本实用新型实施例的金属绞线与柔性发光灯板并联电连接示意图。
图4是本实用新型实施例的立体结构图。
图5是图4中A区域的放大图。
图6是本实用新型实施例横截面的剖视图。
具体实施方式
以下参照附图对本实用新型做进一步的说明。
参照图1到图6所示，本实施例的一种LED柔性灯带，包括发光体和柔性塑料包覆层，所述发光体包括柔性电路板3和设置在柔性电路板3上的LED6，所述包覆层由内包覆层2和设置于内包覆层2外围的外包覆层1组成；所述内包覆层2的内部沿其长度方向设有通孔8，所述通孔8沿其长度方向设有贯穿包覆层的开缝9，所述焊接好LED6的柔性电路板3通过开缝9置于内包覆层2的通孔8内。
所述内包覆层2的位于柔性电路板3两侧面的内壁内设有金属绞线4，金属绞线4与内包覆层2一体成型，金属绞线4嵌入于内包覆层内2，可以很好地固定金属绞线4的位置，防止金属绞线4与柔性发光灯板3发生短路、烧坏LED6等情况。
所述外包覆层1通过挤出成型工艺包覆于内包覆层2外围，可以将内包覆层2及其内的的所有器件完全地密封包覆，起到了很好的防水效果。
所述的内包覆层2和外包覆层1为具有混光物质的柔韧性透光材料，能将LED6发出的光线变得更均匀、柔和。
所述的金属绞线4与柔性电路板3上的电路并联电连接。
所述的LED6为贴片式LED，方便机械自动化生产。
上述的实施例仅用于说明本实用新型的技术方案，并不构成对本实用新型保护范围的限定，本实用新型的保护范围还包括本技术领域的技术人员在对本实用新型没有做出创造性劳动前提下所做的各种修改与替换。

Claims (6)

  1. 一种LED柔性灯带，包括发光体和柔性塑料包覆层，所述发光体包括柔性电路板和设置在柔性电路板上的LED，其特征在于：所述包覆层由内包覆层和设置于内包覆层外围的外包覆层组成；所述内包覆层的内部沿其长度方向设有通孔，所述通孔沿其长度方向设有贯穿包覆层的开缝，所述焊接好LED的柔性电路板通过开缝置于内包覆层的通孔内。
  2. 根据权利要求1所述的一种LED柔性灯带，其特征在于：所述内包覆层的位于柔性电路板两侧面的内壁内设有金属绞线。
  3. 根据权利要求2所述的一种LED柔性灯带，其特征在于：所述外包覆层通过挤出成型工艺包覆于内包覆层外围。
  4. 根据权利要求3所述的一种LED柔性灯带，其特征在于：所述的内包覆层和外包覆层为具有混光物质的柔韧性透光材料，能将LED发出的光线变得更均匀、柔和。
  5. 根据权利要求3所述的一种LED柔性灯带，其特征在于：所述的金属绞线与柔性电路板上的电路并联电连接。
  6. 根据权利要求3所述的一种LED柔性灯带，其特征在于：所述的LED为贴片式LED。
PCT/CN2013/070030 2012-10-26 2013-01-04 一种led柔性灯带结构 WO2014063446A1 (zh)

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CN201220557602.3 2012-10-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017080705A1 (de) * 2015-11-09 2017-05-18 Robert Bosch Gmbh Beleuchtungseinheit
WO2019011721A1 (en) * 2017-07-13 2019-01-17 Philips Lighting Holding B.V. LIGHT EMITTING STRIP

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US20030193801A1 (en) * 2002-04-16 2003-10-16 Yuan Lin Flexible rod light and manufacturing method thereof
CN1214205C (zh) * 2002-09-11 2005-08-10 皇甫尚喜 一种晶体彩色发光模件制作方法
CN2851823Y (zh) * 2005-08-08 2006-12-27 鹤山丽得电子实业有限公司 一种改进的led软线灯
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CN201269449Y (zh) * 2008-09-19 2009-07-08 鹤山丽得电子实业有限公司 一种通体发光的柔性霓虹灯条
CN201326939Y (zh) * 2008-11-28 2009-10-14 鹤山丽得电子实业有限公司 一种贴片式led软线灯

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US20030193801A1 (en) * 2002-04-16 2003-10-16 Yuan Lin Flexible rod light and manufacturing method thereof
CN1214205C (zh) * 2002-09-11 2005-08-10 皇甫尚喜 一种晶体彩色发光模件制作方法
CN2851823Y (zh) * 2005-08-08 2006-12-27 鹤山丽得电子实业有限公司 一种改进的led软线灯
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017080705A1 (de) * 2015-11-09 2017-05-18 Robert Bosch Gmbh Beleuchtungseinheit
WO2019011721A1 (en) * 2017-07-13 2019-01-17 Philips Lighting Holding B.V. LIGHT EMITTING STRIP
US11204139B2 (en) 2017-07-13 2021-12-21 Signify Holding B.V. Light emitting strip

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