WO2017128550A1 - 一种led灯条和使用该灯条的led灯具 - Google Patents

一种led灯条和使用该灯条的led灯具 Download PDF

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Publication number
WO2017128550A1
WO2017128550A1 PCT/CN2016/080995 CN2016080995W WO2017128550A1 WO 2017128550 A1 WO2017128550 A1 WO 2017128550A1 CN 2016080995 W CN2016080995 W CN 2016080995W WO 2017128550 A1 WO2017128550 A1 WO 2017128550A1
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Prior art keywords
light bar
led
aluminum substrate
led light
groove
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PCT/CN2016/080995
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English (en)
French (fr)
Inventor
李子峰
李立胜
李汉耀
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广明源光科技股份有限公司
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Publication of WO2017128550A1 publication Critical patent/WO2017128550A1/zh

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    • 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
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices

Definitions

  • the present invention relates to the field of LED lighting, and more particularly to an LED light bar and an LED lamp using the same.
  • LED is the best substitute.
  • the light transmissive cover structure is adopted in the way that the light transmissive cover is built into a hard straight LED strip. Since the LED has the characteristics of directional illumination, in the conventional U-shaped fluorescent lamp, the top curved section of the translucent cover Dark areas appear in the position, which affects the lighting effect of the luminaire.
  • An LED light bar comprising an aluminum substrate, a copper foil layer distributed on a front surface of the aluminum substrate, and a plurality of LED chips, the one end of the aluminum substrate being bent along the back surface of the aluminum substrate together with the copper foil layer.
  • a groove is disposed on the back surface of the aluminum substrate, and the groove is located between adjacent LED chips, and the aluminum substrate is bent toward the back surface of the aluminum substrate by using the groove as an axis. After the groove, the bending is made easier and the position of the bending is more precise.
  • the aluminum substrate is provided with one or more grooves, and the plurality of grooves can be bent multiple times.
  • the plurality of grooves may be disposed between two adjacent LED chips in the same segment area, or may be respectively disposed between two adjacent LED chips in different segment areas.
  • the groove is any one or more of a V-shaped groove, a semi-circular groove, and a groove-shaped groove.
  • the depth of the groove is between one sixth of the thickness of the aluminum substrate and three quarters of the thickness of the aluminum substrate.
  • the copper foil layer is preferably ductile.
  • a copper foil material preferably a rolled copper foil.
  • the thickness of the copper foil is between 1.Onm and 5.0 nm.
  • An LED lamp includes a lamp cap, a casing connected to the lamp cap, a U-shaped translucent cover mounted on the casing, a drive fixed in the casing, and the LED light bar disposed in the translucent cover.
  • the light bar is electrically connected to the drive, and the drive is electrically connected to the lamp cap.
  • the curved portion of the LED light bar is matched with the shape of the curved segment of the U-shaped transparent cover.
  • a rigid LED light bar comprising an aluminum substrate, a copper foil and an LED chip can also be applied to different lamps after being bent, wherein the light bar is replaced by a conventional U-shaped fluorescent lamp. After that, the problem of the dark area at the top of the U-shaped transmissive cover can be solved, so that the lighting effect of the luminaire is better.
  • FIG. 1 is a front elevational view of a preferred embodiment of an LED light bar of the present invention before bending; [0018] FIG.
  • FIG. 2 is a side view of the LED light bar of FIG. 1;
  • FIG. 3 is a schematic view of the LED light bar of FIG. 2 after being bent; [0020] FIG.
  • FIG. 4 is a partial enlarged view of the LED light bar of FIG. 2;
  • FIG. 5 is a schematic view showing the plurality of grooves continuously arranged in the LED light bar of FIG.
  • FIG. 6 is a schematic view of the LED light bar of FIG. 1 intermittently arranged with a plurality of grooves before and after bending; [0023] FIG.
  • FIG. 7 is a schematic view showing the arrangement of grooves of different shapes in the LED light bar of FIG. 1;
  • FIG. 8 is a schematic view of an LED lamp of the present invention.
  • FIG. 9 is a cross-sectional view taken along line A in FIG. 8.
  • an LED light bar 4 includes a rigid strip-shaped aluminum substrate 40, and two sides of the aluminum substrate have a larger area. As the front and back surfaces of the aluminum substrate, a copper foil layer 41 and a plurality of LED chips 42 are attached on the front surface of the aluminum substrate 40, and the ends of the aluminum substrate 40 are bent along the back surface of the aluminum substrate together with the copper foil layer, and bent.
  • the LED light bar can be applied to more different lamps, which expands the application range of the LED light bar and also improves the lighting effect of the LED lamp.
  • a groove 5 is disposed on the back surface of the aluminum substrate 40, and the aluminum substrate 40 is centered on the groove 5. , bending toward the back side of the aluminum substrate 40, For bending, the LED chip 42 is not affected, and the groove 5 is disposed in an area between adjacent LED chips 42
  • the plurality of grooves 5 may be disposed between two adjacent LED chips 42 in the same segment area, and the LED light bar 4 realizes continuous gradual bending between the adjacent LED chips 42 to achieve The desired bending angle is not broken by the copper foil layer 41 because the one-time bending angle is too large.
  • the plurality of grooves 5 may also be disposed between two adjacent LED chips 42 in different segment regions, so that the LED light bar 4 can be intermittently bent to achieve different bending requirements. .
  • the groove 5 is provided as a V-shaped groove, or may be any one of a semi-circular groove or a groove groove; when a plurality of grooves 5 are disposed on the aluminum substrate 40, It may be a combination of any one or more of the above three groove types.
  • the depth of the groove 5 depends on the thickness of the aluminum substrate 40, and is not set too deep and too shallow, otherwise the aluminum substrate 40 may be easily broken or may not have a better bending effect.
  • the depth of the groove 5 is in the range of one sixth to three quarters of the thickness of the aluminum substrate 40.
  • the copper foil layer 41 disposed in the LED light bar 4 is bent together with the aluminum substrate 40.
  • the copper foil layer 41 is used.
  • a ductile copper foil material is preferred, and a rolled copper foil is preferably used.
  • we can also use a thick copper foil layer 41, the thickness of the copper foil layer 41 is set between l. Onm and 5.0 nm.
  • a phosphor layer 43 is further disposed on the LED strip 4, and the phosphor layer 43 may be continuously covered on the LED chip 42 or may be intermittently covered. On the LED chip.
  • an LED lamp according to a preferred embodiment of the present invention includes a lamp cap 1, a housing 2 connected to the lamp cap, and a U-shaped transmissive cover 3 mounted on the housing 2.
  • a driving (not shown) fixed in the casing 2 and the LED light bar 4 disposed in the transparent cover 3, the LED light bar 4 is electrically connected to the driving, and the driving is electrically connected to the lamp cap 1,
  • the base 1 supplies power to the LED luminaire by connecting to an external power source.
  • the single U-shaped translucent cover is provided with two LED strips bent only at one end, and the curved portion of the LED strip 4 is close to the top of the U-shaped transmissive cover, and the U-shaped transmissive cover The shape of the curved segments is matched.
  • the double U-shaped transmissive cover is provided with four LED strips, and the LED strips required for the multi-U translucent cover are also Push.
  • the L ED strip 4 is mounted in the tube of the translucent cover 3 near the central axis of the transmissive cover, And the LED chip 42 is illuminated in an outward direction.
  • the LED strip of the invention After the LED strip of the invention is bent, it can be applied to more different lamps, and is used for replacing the LED lamp of the traditional U-shaped fluorescent lamp, and can solve the problem of the dark area at the top of the U-shaped transmissive cover, so that the lamp is Solutions for better lighting problems

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

Abstract

一种LED灯条(4)，包括铝基板(40)、安装在铝基板(40)正面的铜箔层(41)和多个LED芯片(42)，所述铝基板(40)一端连同铜箔层(41)一起沿铝基板(40)背面方向弯曲。该LED灯条(4)弯曲后可适用于更多不同的灯具，扩大了LED灯条(4)的应用范围，也提高了LED灯具的照明效果，用于替代传统的U型荧光灯的LED灯具时，可以解决U型透光罩(3)顶部弧形段位置的暗区问题，以达到更佳的照明效果。

Description

一种 LED灯条和使用该灯条的 LED灯具 技术领域
[0001] 本发明涉及 LED照明领域， 特别是一种 LED灯条和使用该灯条的 LED灯具。
背景技术
[0002] 当前， 荧光灯在照明市场占有量仍然比较大， 从节能、 环保、 能效角度， LED 是最好的替代品， 为了保持消费者对传统 U型荧光灯的使用的习惯， 我们依然使 用传统荧光灯的透光罩结构， 现有采用的方式是在透光罩内置入硬质直型的 LED 灯条， 由于 LED具有定向照明的特征， 所以在传统 U型荧光灯中， 透光罩顶部弧 形段位置会出现暗区， 从而影响灯具的照明效果。
技术问题
[0003] 传统 U型荧光灯中， 透光罩顶部弧形段位置会出现暗区， 从而影响灯具的照明 效果。
[0004] 问题的解决方案
[0005] 一种 LED灯条， 包括铝基板、 分布在铝基板正面的铜箔层和多个 LED芯片， 所 述铝基板一端连同铜箔层一起沿铝基板背面方向弯曲。
[0006] 进一步的， 在所述铝基板的背面设置有凹槽， 所述凹槽位于相邻的 LED芯片之 间， 所述铝基板以凹槽为轴心， 向铝基板背面方向弯曲， 设置凹槽后， 使得弯 曲更容易而且弯曲的位置更精确。
[0007] 进一步的， 所述铝基板上设置有一个或多个凹槽， 多个凹槽可以实现多次弯曲
[0008] 进一步的， 所述多个凹槽可以设置在同一段区域的两相邻 LED芯片之间， 也可 以分别设置在不同段区域的两相邻 LED芯片之间。
[0009] 进一步的， 所述凹槽为 V型槽、 半圆型槽、 槽型槽中的任意一种或多种。
[0010] 进一步的， 所述凹槽的深度在铝基板厚度的六分之一至铝基板厚度的四分之三 之间。
[0011] 进一步的， 在弯折中， 为了不会弯断铜箔层， 所述铜箔层采用的是延展性较好 铜箔材料， 优选的采用压延铜箔。
[0012] 进一步的， 所述铜箔的厚度在 l.Onm至 5.0nm之间。
[0013] 一种 LED灯具， 包括灯头、 与灯头连接的壳体、 安装在壳体上的 U型透光罩、 固定在壳体内的驱动以及置于透光罩内的所述 LED灯条， 所述灯条与驱动电连接 ， 驱动与灯头电连接。
[0014] 进一步的， 所述 LED灯条的弯曲部分与 U型透光罩的弧形段形状相匹配。
[0015] 发明的有益效果
[0016] 包括有铝基板、 铜箔和 LED芯片的硬质 LED灯条， 经弯折后， 同样可以适用于 不同的灯具， 其中替代传统的 U型荧光灯的 LED灯， 使用了所述灯条后， 可以解 决了 U 型透光罩顶部暗区问题， 使得灯具的照明效果更佳。
[0017] 对附图的简要说明
[0018] 图 1为本发明 LED灯条较佳实施例弯曲前的主视图；
[0019] 图 2为图 1所述 LED灯条的侧视图；
[0020] 图 3为图 2所述 LED灯条弯曲后的示意图；
[0021] 图 4为图 2所述 LED灯条的局部放大图；
[0022] 图 5为图 1所述 LED灯条连续设置多个凹槽的示意图；
[0023] 图 6为图 1所述 LED灯条间断设置多个凹槽弯曲前后的示意图；
[0024] 图 7为图 1所述 LED灯条设置不同形状的凹槽的示意图；
[0025] 图 8为本发明 LED灯具的示意图；
[0026] 图 9为图 8中 A方向的剖视图。
[0027] 实施该发明的最佳实施例
[0028] 请结合参阅图 1至图 4， 本发明较佳实施例所示的一种 LED灯条 4包括一硬质长 条型的铝基板 40， 铝基板上面积较大的两个面分别作为铝基板的正面和背面， 在铝基板 40的正面上贴装有铜箔层 41和多个 LED芯片 42， 所述铝基板 40的端连同 铜箔层一起沿铝基板背面方向弯曲， 弯曲后的 LED灯条， 可适用于更多不同的灯 具， 扩大了 LED灯条的应用范围， 也提高 LED灯具的照明效果。
[0029] 为了更好的实现弯折且弯折位置更精确， 本较佳实施例中， 在所述铝基板 40的 背面设置有凹槽 5， 所述铝基板 40以凹槽 5为轴心， 向铝基板 40背面方向弯曲， 为弯曲吋不影响到 LED芯片 42， 所述凹槽 5设置在相邻 LED芯片 42之间的区域内
[0030] 本较佳实施例中， 所述铝基板上只设置有一个凹槽 5， 所述 LED灯条 4只进行了 一次弯折， 不难想到， 所述铝基板 40上也可以设置多个凹槽 5， LED灯条 4可实现 多次弯曲。 请参阅图 5， 所述多个凹槽 5可以设置在同一段区域的两相邻 LED芯片 42之间， LED灯条 4在该两邻的 LED芯片 42之间实现连续渐变弯折， 以达到所需 的弯折角度而又不会因为一次性弯折角度太大而折断铜箔层 41。 请参阅图 6， 所 述多个凹槽 5也可以分别设置在不同段区域的两相邻 LED芯片 42之间， 从而 LED 灯条 4可实现间断性的弯折， 以达到不同的弯折需求。
[0031] 请结合参考图 7， ，所述凹槽 5设置为 V型槽， 也可以是半圆型槽或槽型槽中的任 意一种； 当铝基板 40上设置多个凹槽 5吋， 可以是以上三种槽型中任意一种或多 种的组合。
[0032] 所述凹槽 5的深度视铝基板 40的厚度而定， 不宜设置得太深和太浅， 否则容易 折断铝基板 40或起不到较佳的折弯效果， 所述设置的凹槽 5深度在铝基板 40厚度 的六分之一至四分之三的范围内。
[0033] 在 LED灯条 4弯折中， LED灯条 4内设置的铜箔层 41会和铝基板 40—起弯折， 为 了不会弯断铜箔层 41， 所述铜箔层 41采用延展性较好铜箔材料， 优选的采用压 延铜箔。 另外， 我们还可以采用加厚的铜箔层 41， 铜箔层 41的厚度设置在 l.Onm 至 5.0nm之间。
[0034] 请继续结合参考图 1和图 5， 在所述 LED灯条 4上还设置有荧光粉层 43， 所述荧 光粉层 43可连续的覆盖在 LED芯片 42上， 也可以间断的覆盖在 LED芯片上。
[0035] 请结合参考图 8、 图 9， 本发明较佳实施所示的一种 LED灯具， 包括灯头 1、 与 灯头连接的壳体 2、 安装在壳体 2上的 U型透光罩 3、 固定在壳体 2内的驱动 （图未 示） 以及置于透光罩 3内的所述 LED灯条 4， 所述 LED灯条 4与驱动电连接， 驱动 与灯头 1电连接， 所述灯头 1通过与外部电源连接而给 LED灯具供电。
[0036] 所述单 U型透光罩内设置两根仅在一端弯曲的所述 LED灯条， 所述 LED灯条 4的 弯曲部分向上靠近 U型透光罩顶部， 与 U型透光罩的弧形段形状相匹配， 同理， 双 U型透光罩就设置 4根所述 LED灯条， 多 U型的透光罩需要的 LED灯条也以此类 推。 在设置有双 U型透光罩的 LED灯具里， 为了减少透光罩 3四周的暗区， 所述 L ED灯条 4安装在透光罩 3的管内靠近透光罩中心轴的位置上， 且所述 LED芯片 42 向外方向照射。
[0037] 不难想到多段弯折的所述 LED灯头还可以用于替代螺旋形荧光灯的 LED灯具内
， 或者用于替代花型荧光灯等规则或不规则的 LED灯具内。
[0038] 本发明的 LED灯条经弯折后， 可适用于更多不同的灯具， 用于替代传统 U型荧 光灯的 LED灯具吋， 可解决 U型透光罩顶部暗区问题， 使得灯具的照明效果更佳 问题的解决方案
发明的有益效果

Claims

权利要求书
[权利要求 1] 一种 LED灯条， 包括铝基板、 分布在铝基板正面的铜箔层和多个 LED 芯片， 其特征在于： 所述铝基板一端连同铜箔层一起沿铝基板背面方 向弯曲。
[权利要求 2] 根据权利要求 1所述的 LED灯条， 其特征在于， 在所述铝基板的背面 设置有凹槽， 所述凹槽位于相邻的 LED芯片之间， 所述铝基板以凹槽 为轴心， 向铝基板背面方向弯曲。
[权利要求 3] 根据权利要求 2所述的 LED灯条， 其特征在于， 所述铝基板上设置有 一个或多个凹槽。
[权利要求 4] 根据权利要求 3所述的 LED灯条， 其特征在于， 所述多个凹槽可以设 置在同一段区域的两相邻 LED芯片之间， 也可以分别设置在不同段区 域的两相邻 LED芯片之间。
[权利要求 5] 根据权利要求 3所述的 LED灯条， 其特征在于， 所述凹槽为 V型槽、 半圆型槽、 槽型槽中的任意一种或多种。
[权利要求 6] 根据权利要求 2所述的 LED灯条， 其特征在于， 所述凹槽的深度范围 在铝基板厚度的六分之一至铝基板厚度的四分之三之间。
[权利要求 7] 根据权利要求 1所述的 LED灯条， 其特征在于， 所述铜箔层采用的是 压延铜箔。
[权利要求 8] 根据权利要求 1所述的 LED灯条， 其特征在于， 所述铜箔的厚度在 1.0 nm至 5.0nm之间。
[权利要求 9] 一种 LED灯具， 其特征在于， 包括灯头、 与灯头连接的壳体、 安装在 壳体上的 U型透光罩、 固定在壳体内的驱动以及置于透光罩内的如权 利要求 1至 7任一项所述的 LED灯条， 所述灯条与驱动电连接， 驱动与 灯头电连接。
[权利要求 10] 根据权利要求 9所述的 LED灯具， 其特征在于， 所述 LED灯条的弯曲 部分与 U型透光罩的弧形段形状相匹配。
PCT/CN2016/080995 2016-01-30 2016-05-04 一种led灯条和使用该灯条的led灯具 WO2017128550A1 (zh)

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