WO2017152408A1 - 一种led灯管 - Google Patents

一种led灯管 Download PDF

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Publication number
WO2017152408A1
WO2017152408A1 PCT/CN2016/076061 CN2016076061W WO2017152408A1 WO 2017152408 A1 WO2017152408 A1 WO 2017152408A1 CN 2016076061 W CN2016076061 W CN 2016076061W WO 2017152408 A1 WO2017152408 A1 WO 2017152408A1
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Prior art keywords
led
circuit board
disposed
assembly
sleeve
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PCT/CN2016/076061
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English (en)
French (fr)
Inventor
黄晓华
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深圳市瑞梓光电科技有限公司
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Priority to PCT/CN2016/076061 priority Critical patent/WO2017152408A1/zh
Publication of WO2017152408A1 publication Critical patent/WO2017152408A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction

Definitions

  • the present invention relates to the field of lighting equipment, and more particularly to an LED tube.
  • LED lights have the advantages of energy saving and environmental protection, and the life and brightness of LED lights are superior to other lamps.
  • lamp-shaped lamps are generally fluorescent lamps, which are widely used in daily life and work, and have formed relevant standards, such as T5, T6 and other standard lamps, the diameter of such lamps is about 11mm- The 24mm, T5, T6 lamps will be equipped with the corresponding G5 standard lamp holders.
  • T5 and T6 the use of LED tubes instead of fluorescent tubes has begun to appear.
  • T5 and T6 it is difficult to place the driving power supply component because of its small diameter.
  • the general solution is to fix the drive power components through the peripheral brackets.
  • this structure is complicated to install and has poor safety.
  • Another solution is to increase the height of the LED assembly so that there is enough space in the tube to place the driving power supply assembly. Such a structure causes the LED to be too close to the lamp cover, resulting in a decrease in astigmatism angle and affecting the lighting effect. .
  • the technical problem to be solved by the present invention is to provide an LED lamp tube in which a driving power source is added to a lamp of 11 mm to 24 mm and a G5 standard lamp holder can be used.
  • an LED tube having a diameter of 11 mm to 24 mm comprising:
  • An LED assembly including a first circuit board and an LED disposed on the first circuit board;
  • the heat pipe is disposed under the first circuit board
  • the driving power component is disposed in the heat pipe, the driving power component includes: a second circuit board, a transformer disposed on the second circuit board, and a plurality of components, the transformer including a main a frame and a core assembly, the main frame including a winding portion and a lead portion disposed at both ends of the winding portion, the winding portion has an axial length of 16 mm to 24 mm, and an edge of the magnetic core assembly is provided with a relief structure for reducing an upper width of the magnetic core assembly to avoid the heat dissipation tube.
  • the method further includes a sleeve, the driving power component is fixedly disposed in the sleeve, the sleeve has a shape adapted to a shape of a cavity of the heat pipe, and the sleeve is fixed in the heat pipe .
  • the driving power supply assembly is first installed through the sleeve, so that when the driving power supply assembly is assembled, it is only necessary to insert the sleeve into the heat-dissipating tube for fixing, so that the driving power component can be prevented from being damaged due to bumping during assembly. .
  • the sleeve is made of an insulating material.
  • the casing is made of insulating material to effectively protect the components.
  • two ends of the sleeve are respectively provided with plugs for closing both ends of the sleeve.
  • the plug can be used to limit the fixing of the driving power component, and also prevent dust or other things from entering the driving power component to affect the stability of the driving power component.
  • the relief structure is an oblique angle disposed at an edge of the core assembly.
  • the bevel angle can reduce the lateral width at the edge of the core assembly, thereby making the upper end mounting width of the driving power supply assembly smaller, so that it can be inserted into the heat pipe without being limited by the circular heat pipe space.
  • the relief structure is a curved surface disposed at an edge of the core assembly.
  • the curved surface can reduce the lateral width without too much reducing the thickness of the edge of the core assembly.
  • the plurality of components comprise a common mode inductor, and the base of the common mode inductor has a height of 0.6 mm to 1.0 mm.
  • the plurality of components include a capacitor
  • the second circuit board is provided with a sinking recess, and the capacitor is installed in the sinking recess.
  • a sinking groove is provided on the second circuit board, and the capacitor is mounted through the sunken groove, which can reduce the mounting height of the capacitor, thereby reducing the overall height of the driving power supply assembly and making it easier to install in a small space.
  • the heat pipe is made of aluminum.
  • the lamp cover and the heat dissipation pipe are connected by an inverted structure, and an inner side edge of the lamp cover is further provided with a limiting portion for defining the first circuit board.
  • the invention improves the driving power component of the 11mm-24mm LED lamp tube, increases the axial length of the transformer winding portion, thereby increasing the axial winding space of the transformer, so that the width of the transformer can be appropriately reduced to a suitable one. Width, thereby reducing the mounting width of the driving power component, and further, providing a evasing structure to the edge of the transformer core assembly to reduce the upper width of the core assembly to avoid the heat pipe, further reducing the driving power component The mounting width of the upper end. In this way, it is possible to implement a lamp holder that can still be applied to the G5 standard when a driving power supply component is incorporated in an 11 mm to 24 mm LED lamp tube.
  • FIG. 1 is a structural view of an LED lamp tube according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of an LED lamp tube according to an embodiment of the present invention
  • FIG. 3 is an exploded view showing the structure of an LED lamp tube according to an embodiment of the present invention.
  • FIG. 4 is a structural diagram of a driving power supply assembly of an LED lamp tube according to an embodiment of the present invention.
  • Fig. 5 is a structural view of a bushing of a driving power supply unit of an LED lamp according to an embodiment of the present invention.
  • the present embodiment provides a specific implementation manner of an LED lamp tube according to the present invention.
  • the tube diameter of the lamp tube is 11 mm-24 mm, and the LED tube is intended to solve the existing 11 mm-24 mm lamp. It is difficult to add the driving power component or the driving power component to affect the scattering surface of the LED.
  • the LED lamp is also suitable for solving the problem that the driving power component is added to the 11mm-24mm lamp. G5 standard lamp holder.
  • the LED lamp tube includes an LED assembly 8, a lamp cover 7, a heat pipe 9, a driving power source assembly 12, a sleeve 11, and a lamp cap.
  • the LED assembly 8 includes a first circuit board 81 and an LED 82 disposed on the first circuit board 81.
  • the heat pipe 9 is disposed under the first circuit board 81; the lamp cover is sleeved on the LED component.
  • the driving power supply assembly 12 is disposed in the heat dissipation pipe 9, and the driving power supply assembly 12 includes: a second circuit board 121, a transformer 123 disposed on the second circuit board 121, and a plurality of components,
  • the transformer 123 includes a main frame 1231 and a core assembly 1232, the main frame 1231 including a winding portion and disposed at both ends of the winding portion a lead portion (not shown) having an axial length of 16 mm to 24 mm, and an edge of the core assembly 1232 is provided with a relief structure 1233 for reducing the upper width of the core assembly 1232 to avoid the
  • the heat pipe 9 is described because the semicircular structure of the heat pipe 9 causes the lower space thereof to gradually decrease, and the relief structure 1233 can reduce the mounting width of the transformer 123.
  • the lamp cap comprises: an end cover 6 disposed at an end of the lamp tube, an aluminum ring 5, a buckle 4, a base body 3, a copper pin 2, and a transparent protective cover 1; the aluminum ring 5 is used for connecting the base body 3 and The end cap 6, the copper needle 2 is disposed on the base body 3, and the transparent protective cover 1 is sleeved on the copper needle 2 for protecting the copper needle 2.
  • the LED tube further includes a sleeve 11
  • the driving power supply assembly 12 is fixedly disposed in the sleeve 11
  • the shape of the sleeve 11 is opposite to the shape of the inner cavity of the heat dissipation tube 9 .
  • the adaptors are all an approximately semi-circular structure, and the sleeve 11 is fixed in the heat-dissipating tube 9 and fixed by a snap or a screw.
  • the driving power supply assembly 12 is first mounted through the sleeve 11.
  • the sleeve 11 Since the sleeve 11 is small in structure, it is easier to mount the driving power supply assembly into its internal cavity, and at the same time, when assembling the driving power supply assembly 12 to the LED tube It is only necessary to insert the sleeve 11 (the drive power component has been organized in the sleeve) into the heat dissipation tube 9 for fixing, so that the damage of the drive power component due to bumping can be avoided during assembly.
  • the material of the sleeve 11 is an insulating material, and the insulating material can effectively protect the components.
  • the two ends of the sleeve 11 are respectively provided with plugs 10 and 13 for closing both ends of the sleeve 11.
  • the use of the plugs 10, 13 can well limit the driving power supply assembly 12, and also prevent dust or other things from entering the driving power supply assembly 12 to affect the stability of the driving power supply assembly.
  • the relief structure 1233 of the transformer core assembly 1232 is an oblique angle disposed at the edge of the core assembly (as shown in FIG. 4).
  • the bevel angle can reduce the lateral width at the edge of the core assembly 1232, thereby making the upper end mounting width of the driving power supply assembly smaller, so that it can be inserted into the heat pipe without being limited by the circular heat pipe space.
  • the relief structure may also be a curved surface disposed at the edge of the core assembly. The curved surface can ensure a part of the thickness of the edge of the core assembly, and can also reduce its lateral width and can be installed in the heat pipe.
  • the components of the driving power component include a common mode inductor, and the base of the common mode inductor is non-standard.
  • the base of the common mode inductor adopts a height of 0.6 mm to 1.0 mm. At height, it can be easily mounted to the second circuit board without reaching the heat pipe 9, At the same time, it is also possible to leave the installation space of the sleeve 11.
  • the component of the driving power supply component includes a capacitor 123, and the second circuit board 121 is provided with a sinking recess, and the capacitor 124 is installed in the sinking recess.
  • the capacitor is mounted by a recessed recess, which reduces the mounting height of the capacitor, thereby reducing the overall height of the drive power pack and making it easier to install in a small space.
  • the heat-dissipating tube 9 functions as a support body and the heat-dissipating member. Therefore, the material of the heat-dissipating tube can be selected from aluminum or other metal materials having better heat dissipation performance.
  • the lamp cover 7 and the heat dissipation pipe 9 are connected by an inverted structure, and the inner edge of the lamp cover 7 is further provided with a limit for defining the first circuit board 81.
  • Position 71. The structure of the lampshade 7 combines the fixing of the first circuit board 81, thereby making the mounting structure of the first circuit board 81 simpler and lower in manufacturing cost.

Abstract

一种LED灯管，所述灯管的管径为11mm-24mm，所述LED灯管包括：LED组件（8）、散热管（9）、灯罩（7）、驱动电源组件（12）；所述LED组件（8）包括第一电路板（81）以及设置在所述第一电路板（81）上的LED（82）；所述散热管（9）设置在所述第一电路板（81）下；所述灯罩（7）套设在所述LED组件（8）上；所述驱动电源组件（12）设置在所述散热管（9）内，所述驱动电源组件（12）包括：第二电路板（121）、设置在所述第二电路板（121）上的变压器（123）以及多个元气件，所述变压器（123）包括主框架（1231）以及磁芯组件（1232），所述主框架（1231）包括绕线部以及设置在绕线部两端的引线部，所述绕线部的轴向长度为16mm-24mm，所述磁芯组件（1232）的边缘设置有避让结构（1233）用以减小磁芯组件（1232）的上部宽度以避让所述散热管（9）。实现了在11mm-24mm的LED灯管内加入驱动电源组件情况下仍能适用于G5标准的灯头。

Description

一种LED灯管 技术领域
本发明涉及照明设备领域，更具体的说，涉及一种LED灯管。
背景技术
LED灯具有节能、环保等优势，且LED灯的寿命、亮度都优于其它的灯具。
目前，灯管形状的灯具一般为荧光灯，被广泛的应用于日常生活和工作中，并形成了相关的标准，比如T5、T6等标准的灯管，这类灯管的管径大约为11mm-24mm，T5、T6的灯管会配置相应的G5标准的灯座。针对目前LED灯具的普及，开始出现使用LED灯管替代荧光灯管的使用。然而，对于T5、T6等标准的灯管而言，由于其管径较小，难以放置驱动电源组件。一般的解决方式是通过外设支架将驱动电源组件进行固定，然而这种结构安装复杂，且安全性较差。另一种解决方式是，通过提升LED组件的高度，使得灯管内能够具有足够的空间放置驱动电源组件，这样的结构导致了LED距离灯罩的太近，导致散光角度减小，影响到照明效果。
发明内容
本发明所要解决的技术问题是提供一种在11mm-24mm的灯管内加入驱动电源并使其能够使用G5标准灯座的LED灯管。
本发明的目的是通过以下技术方案来实现的：一种LED灯管，所述灯管的管径为11mm-24mm，所述LED灯管包括：
LED组件，其包括第一电路板以及设置在所述第一电路板上的LED；
散热管，所述散热管设置在所述第一电路板下；
灯罩，所述灯罩套设在所述LED组件上；以及
驱动电源组件，所述驱动电源组件设置在所述散热管内，所述驱动电源组件包括：第二电路板、设置在所述第二电路板上的变压器以及多个元气件，所述变压器包括主框架以及磁芯组件，所述主框架包括绕线部以及设 置在绕线部两端的引线部，所述绕线部的轴向长度为16mm-24mm，所述磁芯组件的边缘设置有避让结构用以减小磁芯组件的上部宽度以避让所述散热管。
优选的，还包括一套管，所述驱动电源组件固定设置在所述套管内，所述套管的形状与所述散热管的内腔形状相适应，所述套管固定在所述散热管内。通过套管先将驱动电源组件进行安装，这样在组装驱动电源组件时，只需将套管插入所述散热管的内部进行固定即可，这样在组装时可以避免因为磕碰导致驱动电源组件的损坏。
优选的，所述套管的材质为绝缘材料。套管采用绝缘材料可以有效的保护元器件。
优选的，所述套管的两端分别设置有堵头用于封闭所述套管的两端。利用堵头可以很好的对驱动电源组件进行限位固定，同时也避免灰尘或其它东西进入驱动电源组件内影响驱动电源组件的稳定性。
优选的，所述避让结构为设置在所述磁芯组件边缘处的斜角。斜角可以减小磁芯组件边缘处的横向宽度，从而使得驱动电源组件的上端安装宽度变小，从而可以插入到散热管内而不受到圆形散热管空间的限制。
优选的，所述避让结构为设置在所述磁芯组件边缘处的弧面。弧面既可以减小横向宽度，又不会太多的减小磁芯组件边缘的厚度。
优选的，所述多个元器件包括共模电感，所述共模电感的底座高度为0.6mm-1.0mm。
优选的，所述多个元器件包括电容，所述第二电路板上设置有下沉凹槽，所述电容安装在所述下沉凹槽内。在第二电路板上设置下沉的凹槽，通过下沉的凹槽来安装电容，这样可以降低电容的安装高度，从而使得驱动电源组件的整体高度降低，更容易在小空间内进行安装。
优选的，所述散热管的材质为铝材。
优选的，所述灯罩与所述散热管之间通过倒扣结构连接，所述灯罩的内侧边缘还设置有用于限定所述第一电路板的限位部。
本发明针对11mm-24mm的LED灯管的驱动电源组件进行改进，增加了变压器绕线部的轴向长度，从而增加了变压器的轴向绕线空间，使得变压器的宽度可以适当的缩小至适合的宽度，从而减小了驱动电源组件的安装宽度，此外，对变压器磁芯组件的边缘设置有避让结构用以减小磁芯组件的上部宽度以避让所述散热管，进一步减小了驱动电源组件上端的安装宽度。这样，实现了在11mm-24mm的LED灯管内加入驱动电源组件情况下仍然能够适用于G5标准的灯座。
附图说明
图1是本发明实施例的LED灯管结构图，
图2是本发明实施例的LED灯管的截面图，
图3是本发明实施例的LED灯管的结构分解图，
图4是本发明实施例的LED灯管的驱动电源组件结构图，
图5是本发明实施例的LED灯管的驱动电源组件的套管结构图。
具体实施方式
下面结合附图和较佳的实施例对本发明作进一步说明。
如图1-5所示，本实施例基于本发明提供一种LED灯管的具体实施方式，所述灯管的管径为11mm-24mm，该LED灯管旨在解决现有11mm-24mm灯管难以加入驱动电源组件、或加入驱动电源组件后对LED的散射面造成影响的问题，同时，该LED灯管也是为了解决在11mm-24mm的灯管中加入驱动电源组件后依然可以适配到G5标准的灯座中。
所述LED灯管包括：LED组件8、灯罩7、散热管9、驱动电源组件12、套管11以及灯头。所述LED组件8包括第一电路板81以及设置在所述第一电路板81上的LED82。所述散热管9设置在所述第一电路板81下；所述灯罩套设在所述LED组件上。所述驱动电源组件12设置在所述散热管9内，所述驱动电源组件12包括：第二电路板121、设置在所述第二电路板121上的变压器123以及多个元气件，所述变压器123包括主框架1231以及磁芯组件1232，所述主框架1231包括绕线部以及设置在绕线部两端 的引线部(未示出)，所述绕线部的轴向长度为16mm-24mm，所述磁芯组件1232的边缘设置有避让结构1233用以减小磁芯组件1232的上部宽度以避让所述散热管9，因为散热管9的半圆结构导致其下部空间逐渐减小，而避让结构1233可以减小变压器123的安装宽度。所述灯头包括:设置在灯管端部的端盖6、铝环5、锁扣4、灯头主体3、铜针2以及透明的保护盖1；所述铝环5用于连接灯头主体3和端盖6，所述铜针2设置在所述灯头主体3上，所述透明的保护盖1套设在所述铜针2上用于保护所述铜针2。
在本实施例中，LED灯管还包括一套管11，所述驱动电源组件12固定设置在所述套管11内，所述套管11的形状与所述散热管9的内腔形状相适应，都是一个近似的半圆形结构，所述套管11固定在所述散热管9内，通过卡扣或者螺丝进行固定。这样，通过套管11先将驱动电源组件12进行安装，由于套管11结构小巧，更便于将驱动电源组件安装到其内部腔体中，同时，在组装驱动电源组件12到LED灯管上时，只需将套管11(套管内已组织好驱动电源组件)插入所述散热管9的内部进行固定即可，这样在组装时也可以避免因为磕碰导致驱动电源组件的损坏。所述套管11的材质为绝缘材料，采用绝缘材料可以有效的保护元器件。
在本实施例中，所述套管11的两端分别设置有堵头10、13用于封闭所述套管11的两端。利用堵头10、13可以很好的对驱动电源组件12进行限位固定，同时也避免灰尘或其它东西进入驱动电源组件12内影响驱动电源组件的稳定性。
在本实施例中，所述变压器磁芯组件1232的避让结构1233为设置在所述磁芯组件边缘处的斜角(如图4所示)。斜角可以减小磁芯组件1232边缘处的横向宽度，从而使得驱动电源组件的上端安装宽度变小，从而可以插入到散热管内而不受到圆形散热管空间的限制。当然，所述避让结构也可以为设置在所述磁芯组件边缘处的弧面。弧面既可以保证磁芯组件边缘的部分厚度，同时也可以减小其横向宽度，能够安装到散热管内。
在本实施例中，驱动电源组件的元器件包括共模电感，共模电感采用的底座为非标设置，本发明中，所述共模电感的底座采用0.6mm-1.0mm的高度，在此高度下，可以轻易的安装到第二电路板上而不会顶到散热管9， 同时还可以能够留出套管11的安装空间。
在本实施例中，驱动电源组件的元器件包括电容123，所述第二电路板121上设置有下沉凹槽，所述电容124安装在所述下沉凹槽内。通过下沉的凹槽来安装电容，这样可以降低电容的安装高度，从而使得驱动电源组件的整体高度降低，更容易在小空间内进行安装。
在本实施例中，所述散热管9的作用一可以作为支撑体，二是作为散热构件，因此，所述散热管的材质可以选择散热性能较好的铝材或其他金属材质。
在本实施例中，如图2所示，所述灯罩7和所述散热管9通过倒扣结构进行连接，所述灯罩7的内侧边缘还设置有用于限定所述第一电路板81的限位部71。灯罩7的结构结合了对第一电路板81的限位固定，从而使得第一电路板81的安装结构变得更简单，制造成本更低。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (10)

  1. 一种LED灯管，所述灯管的管径为11mm-24mm，其特征在于，所述LED灯管包括：
    LED组件，其包括第一电路板以及设置在所述第一电路板上的LED；
    散热管，所述散热管设置在所述第一电路板下；
    灯罩，所述灯罩套设在所述LED组件上；以及
    驱动电源组件，所述驱动电源组件设置在所述散热管内，所述驱动电源组件包括：第二电路板、设置在所述第二电路板上的变压器以及多个元气件，所述变压器包括主框架以及磁芯组件，所述主框架包括绕线部以及设置在绕线部两端的引线部，所述绕线部的轴向长度为16mm-24mm，所述磁芯组件的边缘设置有避让结构用以减小磁芯组件的上部宽度以避让所述散热管。
  2. 如权利要求1所述的LED灯管，其特征在于，还包括一套管，所述驱动电源组件固定设置在所述套管内，所述套管的形状与所述散热管的内腔形状相适应，所述套管固定在所述散热管内。
  3. 如权利要求2所述的LED灯管，其特征在于，所述套管的材质为绝缘材料。
  4. 如权利要求2所述的LED灯管，其特征在于，所述套管的两端分别设置有堵头用于封闭所述套管的两端。
  5. 如权利要求1所述的LED灯管，其特征在于，所述避让结构为设置在所述磁芯组件边缘处的斜角。
  6. 如权利要求1所述的LED灯管，其特征在于，所述避让结构为设置在所述磁芯组件边缘处的弧面。
  7. 如权利要求1所述的LED灯管，其特征在于，所述多个元器件包括共模电感，所述共模电感的底座高度为0.6mm-1.0mm。
  8. 如权利要求1所述的LED灯管，其特征在于，所述多个元器件包括电容，所述第二电路板上设置有下沉凹槽，所述电容安装在所述下沉凹槽内。
  9. 如权利要求1所述的LED灯管，其特征在于，所述散热管的材质为铝材。
  10. 如权利要求1所述的LED灯管，其特征在于，所述灯罩与所述散热管之间通过倒扣结构连接，所述灯罩的内侧边缘还设置有用于限定所述第一电路板的限位部。
PCT/CN2016/076061 2016-03-10 2016-03-10 一种led灯管 WO2017152408A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201973541U (zh) * 2011-04-06 2011-09-14 群光电能科技股份有限公司 Led灯管
CN202067633U (zh) * 2011-03-15 2011-12-07 外商独资江苏领先电子有限公司 Led日光灯管内置电源变压器
CN202195329U (zh) * 2011-07-28 2012-04-18 陈卫平 一种用来取代t5直管荧光灯的led灯管
CN202484661U (zh) * 2012-01-13 2012-10-10 广州市聚英电器实业有限公司 一种内置变压器的led日光灯
CN102797984A (zh) * 2011-05-24 2012-11-28 旭丽电子(广州)有限公司 灯管
US8322878B2 (en) * 2009-12-22 2012-12-04 Lightel Technologies Inc. Linear solid-state lighting with a double safety mechanism free of shock hazard
CN202733748U (zh) * 2012-07-03 2013-02-13 浙江上光照明有限公司 多功能led灯管

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8322878B2 (en) * 2009-12-22 2012-12-04 Lightel Technologies Inc. Linear solid-state lighting with a double safety mechanism free of shock hazard
CN202067633U (zh) * 2011-03-15 2011-12-07 外商独资江苏领先电子有限公司 Led日光灯管内置电源变压器
CN201973541U (zh) * 2011-04-06 2011-09-14 群光电能科技股份有限公司 Led灯管
CN102797984A (zh) * 2011-05-24 2012-11-28 旭丽电子(广州)有限公司 灯管
CN202195329U (zh) * 2011-07-28 2012-04-18 陈卫平 一种用来取代t5直管荧光灯的led灯管
CN202484661U (zh) * 2012-01-13 2012-10-10 广州市聚英电器实业有限公司 一种内置变压器的led日光灯
CN202733748U (zh) * 2012-07-03 2013-02-13 浙江上光照明有限公司 多功能led灯管

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