WO2011072580A1 - 一种led灯管结构 - Google Patents

一种led灯管结构 Download PDF

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Publication number
WO2011072580A1
WO2011072580A1 PCT/CN2010/079472 CN2010079472W WO2011072580A1 WO 2011072580 A1 WO2011072580 A1 WO 2011072580A1 CN 2010079472 W CN2010079472 W CN 2010079472W WO 2011072580 A1 WO2011072580 A1 WO 2011072580A1
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WIPO (PCT)
Prior art keywords
lamp
support frame
cap
tube structure
arc
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PCT/CN2010/079472
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English (en)
French (fr)
Inventor
蔡祥发
李维升
张海健
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霍尼韦尔朗能电器系统技术（广东）有限公司
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Publication of WO2011072580A1 publication Critical patent/WO2011072580A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • 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 invention relates to an LED lamp tube, in particular to a lamp cap connection structure of an LED lamp tube.
  • the structure of the LED tube usually includes: a tube body, a light source board (such as a PCB board, PWA) disposed inside the tube body.
  • a light source board such as a PCB board, PWA
  • a lamp holder disposed in the tube body for supporting the light source plate, a lamp cap disposed at both ends of the pipe body and electrically connected to the light source plate, wherein the lamp cap is usually fixed to the lamp tube at one time by a glue grinding process,
  • the lamp cap and the lamp tube cannot be removed.
  • LED When the light source panel of the lamp needs to be repaired due to partial damage, it is necessary to break the connection between the lamp cap and the lamp tube, which is inconvenient for detection, repair and replacement.
  • the connection between the lamp cap and the lamp tube is also troublesome, and it is also difficult to ensure the consistency of product quality.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a LED with reliable connection and convenient installation.
  • the structure of the lamp ensures the consistency of product quality.
  • a further technical problem to be solved by the present invention is to provide an LED tube structure that is easy to disassemble.
  • the invention is realized by the following technical solution: an LED tube structure
  • the utility model comprises a tube body, a lamp head provided with a conductive needle, a light source plate disposed in the tube body and a support frame supporting the light source plate, wherein the support frame has an arc shape, and the end surface of the lamp holder opposite to the support frame a hook is provided, and the arc surface of the support frame is provided with a card hole corresponding to the hook.
  • the end face of the base is provided with an arc-shaped extension block extending in the axial direction, and the hook is disposed at the end of the arc-shaped extension block.
  • the hooks at the ends of the curved extension block are two or more, and the curved extension blocks are provided with notches on both sides of any of the hooks;
  • the number of bayonet contacts is the same as the number of hooks.
  • the arc of the cross section of the curved extension block and the arc of the cross section of the support frame are concentric arcs.
  • the arcuate extension block is located inside the support frame.
  • the support frame is a profile having a uniform cross section along the length of the pipe body; the bayonet is stamped.
  • the lamp cap comprises a lamp cap body and a cap-shaped casing, the outer part of the cap body is provided with an external thread, an upper part of the inner wall of the cap-shaped casing is fitted with the outside of the pipe body, and a lower part of the inner wall of the cap-shaped casing is provided with an external thread of the cap body a mating internal thread, a bottom of the cover-shaped housing is provided with a through hole for receiving the conductive pin; the hook is disposed on the base of the lamp body, and the base of the lamp is chucked on the support frame, and the cover shell is screwed On the body of the lamp cap.
  • the maximum outer diameter of the base body is less than or equal to the inner diameter of the tubular body.
  • the cover shell is provided with an inner step, and the inner step surface is provided with a sealing ring. After the cover shell is assembled with the tube body, the seal ring is clamped on the step surface of the cover shell and the end surface of the tube body. between.
  • the opposite ends of the lamp cap and the light source plate are provided with metal symmetrical pieces which are symmetrical with each other.
  • the ends of the light source plate are clamped between the symmetrical metal domes and electrically connected, and the other end of the metal dome is electrically connected with the conductive pins of the lamp cap. .
  • the invention has the beneficial effects that: when the lamp cap is engaged with the support frame, when the LED is After the support frame with the light source plate is installed in the tube body of the lamp tube, the lamp cap, the tube body, the light source plate and the support frame can be connected together by respectively engaging the lamp caps on both ends of the support frame. At the same time, since the maximum outer diameter of the lamp cap is larger than the inner diameter of the pipe body, the lamp ends are stuck at both ends. LED The other components of the lamp do not move axially relative to the pipe body, making the overall connection relationship reliable.
  • the lamp cap is arranged into two parts of the screw-connected lamp cap body and the cap-shaped casing, and the outer diameter of the lamp cap main body is slightly smaller than the inner diameter of the pipe body, so When the LED tube needs to be repaired or replaced due to partial damage, simply unscrew the cover shell as a part of the lamp cap, and then the lamp body and the light source board and the support frame can be integrally extracted from the tube body, thereby easily removing from the support frame. Remove the lamp body from the top to facilitate the maintenance and replacement.
  • the metal body of the lamp body of the present invention is symmetrically disposed, and the metal dome can be directly connected with the light source plate as a light source to form an electrical connection, thereby making the LED It is very convenient to install, replace, repair, and replace ordinary fluorescent tubes with LED tubes.
  • FIG. 1 is a perspective view of an LED tube in an embodiment of the present invention
  • Figure 2 is an exploded view of the LED tube of Figure 1;
  • Figure 3 is a further exploded view of the LED tube of Figure 1;
  • Figure 4 is a view of the other direction of Figure 3;
  • Figure 5 is a perspective view showing the other direction of the lamp body in the embodiment.
  • Figure 6 is a perspective view of the elastic metal of Figure 5.
  • Figure 1 shows the appearance of an LED tube with a lamp cap with conductive pins 22 at the ends and a tube 1 in the middle.
  • the LED tube is decomposed, respectively, comprising a pipe body 1, a sealing ring 6 disposed at two ends of the pipe body, a lamp body 2, a cover casing 3, and a support frame installed in the pipe body 5 , the light source board 4 inserted in the support frame 5 .
  • the tube body 1 is usually a cylindrical light-transmissive tube
  • the support frame 4 is an extruded plastic or aluminum profile, and the overall cross section thereof is curved, and the two ends are punched with bayonet 51.
  • the two sides of the light source board 4 are clamped in the card slots 52 on both sides of the support frame 5.
  • the light source board 4 may be arranged by a plurality of low-power high-brightness patch LED dots, and soldered on the PCB board by a patch process or A strip light source board composed of PWA boards.
  • the outer diameter of the base body 2 is slightly smaller than the inner diameter of the tubular body 1, and the conductive needle 22 is disposed at the outward end of the base body 2.
  • Lamp body 2 The end surface opposite to the support frame 5 is provided with an arc-shaped extension block 21 extending in the axial direction.
  • the end of the arc-shaped extension block 21 is provided with two outwardly convex hooks 21a, and is provided on both sides of any of the hooks 21a. Gap 21b, the notch 21b is mainly used to facilitate the elastic deformation of the hook 21a.
  • the number of the bayonet 51 on the support frame 5 coincides with the number of the hooks 21a.
  • the outer portion of the cap body 2 is provided with an external thread 23, and the inner wall of the cap-shaped casing 3 is provided with a step 31 And the step is divided into two parts: the upper portion 33 of the inner wall of the cap-shaped casing 3 is externally fitted with the pipe body 1, and the lower portion 32 of the inner wall of the cap-shaped casing 3 is provided with the external thread of the cap body 2 Cooperating internal thread, in addition, the bottom of the cover case 3 is provided with a through hole 34 for receiving the conductive pin 22; when assembling, the sealing ring 6 is placed on the inner step surface, when the cover case 3 is screwed At the base of the lamp 2 After the upper seal, the seal ring 6 is clamped between the stepped surface 31 of the cap-shaped housing 3 and the end face of the tubular body 1. The sealing ring 6 prevents water vapor and mist from entering the inside of the pipe body 1 and functions as a waterproof and anti-fog.
  • the metal dome 13 includes a substrate 13a which is riveted to the conductive pins 22, and the substrate 13a is provided with two sets of legs 13b which are symmetrical with each other, and the two sets of legs 13b A card slot is formed between the light source board 4, and when the LED tube is assembled, the light source board 4 is snapped into the card slot and electrically connected to the metal dome 13, and the other end of the metal dome 13 and the conductive pin of the lamp cap 22 Electrical connection.
  • the base body 2 In addition, in order to ensure that the metal shrapnel 13 is not subjected to collision deformation, and protection against electric shock, etc., as shown in Fig. 5, in the base body 2 The end portion is also provided with a support baffle 11 for supporting the metal dome 13.
  • the base body 2 of the lamp cap since the base body 2 of the lamp cap is engaged with the support frame 5, when the tube body of the LED lamp tube 1 After the support frame 5 with the light source plate 4 is installed, the lamp body 2 is respectively engaged at both ends of the support frame 5, and then the cover body 3 is screwed on the lamp body of the two ends of the pipe body 1 to turn the lamp cap, Tube 1
  • the light source board 4 and the support frame 5 are connected in one piece.
  • the lamp cap is disposed in two parts of the cap body 2 and the cap case 3 which are screwed, and the outer diameter of the cap body 2 is slightly smaller than the pipe body 1
  • the inner diameter so when the LED tube needs to be repaired or replaced due to partial damage, the cap body 2 and the light source plate 4 and the support frame 5 can be integrated from the tube body by simply unscrewing the cap-shaped housing 3 as a part of the lamp cap. 1 Pull out to easily remove the lamp cap body 2 from the support frame 5 for easy maintenance and replacement.
  • a metal dome 13 is symmetrically disposed on the base body 2 of the embodiment, and the metal dome 13 It can be directly connected to the light source board 4 as a light source to form an electrical connection, which replaces the previous power supply wire connection, thus making the LED lamp installation, disassembly, replacement, maintenance and LED It is very convenient to replace the ordinary fluorescent tube with a lamp.

Description

一种 LED 灯管结构 技术领域
本发明涉及一种 LED 灯管，特别是一种 LED 灯管的灯头连接结构。
背景技术
随着能源危机的日益严重， LED 在一般环境照明中的应用越来越重要。在世界各国多年的不懈努力下，白光 LED 有了长足的发展，并且掀起了一股 LED 在照明领域应用的热潮，特别是在装饰灯和一些高档场所的局部照明方面，应用更为广泛。在全球节能减排政策的推动下，新一轮的环境照明的节能改造工程也已经开始进行。而现有可与荧光灯互换的 LED 灯管其结构通常是包括有：管体，设置在管体内的光源板（如 PCB 板、 PWA 板），设置在管体内用于支撑光源板的支撑架，设置在管体两端并与光源板电连接的灯头，其中灯头通常都是通过打胶的工艺一次性固定在灯管上，因此当灯管组装后，灯头与灯管便不能拆卸。如果 LED 灯的光源板因部分损坏需要维修时，便需要破坏灯头与灯管之间的连接，给检测、维修和更换带来不便。同时，在生产过程中，灯头与灯管之间的连接也比较麻烦，而且也难以保证产品质量的一致性。
技术问题
本发明要解决的技术问题是克服现有技术的不足，提供一种连接可靠，且方便安装的 LED 灯管结构，同时保证产品质量的一致性。
本发明进一步要解决的技术问题是提供一种方便拆卸的 LED 灯管结构。
 技术解决方案
本发明通过下述技术方案予以实现：一种 LED 灯管结构 ，包括管体、设有导电针的灯头，设置在管体内的光源板及支撑光源板的支撑架，其特征在于：所述支撑架的截面为弧形，所述灯头与支撑架相对的端面设有卡钩，所述支撑架的弧形表面上设有与卡钩对应的卡孔，所述灯头装配在管体上后，灯头的卡钩卡定在支撑架的卡孔内；且所述灯头的最大外径大于管体的内径。
所述灯头的端面设有沿轴向延伸的弧形延伸块，所述卡钩设置在弧形延伸块的末端。
所述弧形延伸块末端的卡钩为两个或两个以上，弧形延伸块在任一卡钩的两侧均设有缺口； 支撑架 上的卡口数量与卡钩数量相一致。
所述弧形延伸块截面的弧形与支撑架截面的弧形为同心弧。
所述灯头装配后，弧形延伸块位于在支撑架的内侧。
所述支撑架为沿管体长度方向截面一致的型材；所述卡口冲压而成。
所述灯头包括灯头主体以及盖状壳体，所述灯头主体的外部设有外螺纹，盖状壳体内壁的上部与管体外部配合，盖状壳体内壁的下部设有与灯头主体外螺纹相配合的内螺纹，盖状壳体的底部设有容纳导电针伸出的通孔；所述卡钩设置在灯头主体上，灯头主体卡装在支撑架上，所述盖状壳体螺纹连接在灯头主体上。
所述灯头主体的最大外径小于或等于管体的内径。
所述盖状壳体内设有内台阶，所述内台阶面上设有密封圈，所盖状壳体与管体组装后，密封圈夹紧在盖状壳体的台阶面与管体的端面之间。
所述灯头与光源板的相对端面上设有相互对称的金属弹片，所述光源板的端部卡设在对称的金属弹片之间并电连接，金属弹片的另一端与灯头的导电针电连接。
 有益效果
相对于现有技术，本发明的有益效果在于：由于灯头与支撑架卡接，当在 LED 灯管的管体内安装好带光源板的支撑架后，在支撑架的两端分别卡接上灯头即可将灯头、管体、光源板和支撑架连接在一起。同时，由于灯头的最大外径大于管体的内径，因此两端卡接有灯头的 LED 灯管的其它部件不会相对于管体轴向移动，从而使得整个连接关系可靠。为了更进一步方便拆卸，将灯头设置成螺纹连接的灯头主体和盖状壳体两部分，而且灯头主体的外径略小于管体的内径，因此当 LED 灯管因部分损坏需要维修或更换时，只需旋下作为灯头一部分的盖状壳体，便可以将灯头主体及光源板和支撑架一体从管体内抽出，从而轻松地从 支撑架 上取下灯头主体，轻松实现维修更换的目的。另外，本发明的灯头主体上对称设置金属弹片，该金属弹片可与作为光源的光源板之间直接卡装构成电连接，因此使得 LED 灯管的安装、更换、维修以及用 LED 灯管替代普通日光灯管变得非常便捷。
附图说明
图 1 为本发明实施例中的 LED 灯管的立体图；
图 2 为图 1 中 LED 灯管的分解图；
图 3 为图 1 中 LED 灯管的进一步分解图；
图 4 是图 3 的另一个方向的视图；
图 5 是本实施例中灯头主体的另一方向的立体图；
图 6 是图 5 中弹性金属的立体图。
 本发明的最佳实施方式
下面结合附图和具体实施方式对本发明 LED 灯管结构 作进一步说明：
如附图 1 所示为 LED 灯管的外观，两端为带有导电针 22 的灯头，中间为管体 1 。如附图 2 、 3 、 4 所示，该 LED 灯管分解后，分别包括管体 1 ，分设在管体两端的密封圈 6 ，灯头主体 2 、盖状壳体 3 ，装设在管体内的支撑架 5 ，插设在支撑架 5 内的光源板 4 。其中管体 1 通常是为圆筒状的透光管，支撑架 4 为挤出成型的塑胶或铝型材，其整体的截面呈弧形，两端冲设有卡口 51 ，光源板 4 的两侧卡装在支撑架 5 两侧的卡槽 52 内。其中，光源板 4 可以是由多个低功率高亮度贴片 LED 点阵排布，采用贴片工艺焊接在 PCB 板或 PWA 板上组成的条形光源板。
灯头主体 2 的外径略小于管体 1 的内径，导电针 22 设置在灯头主体 2 朝外的一端。灯头主体 2 与支撑架 5 相对的端面设有沿轴向延伸的弧形延伸块 21 ，弧形延伸块 21 的末端设有两个向外凸的卡钩 21a ，并且在任一卡钩 21a 的两侧均设有缺口 21b ，该缺口 21b 主要是用于方便卡钩 21a 的弹性变形。 支撑架5 上的卡口 51 数量与卡钩 21a 数量相一致。为了保证该卡钩 21a 可以可靠地卡定在支撑架 5 的卡口 51 内，弧形延伸块 21 截面的弧形与支撑架 5 截面的弧形为同心弧。并且在灯头装配后，弧形延伸块 21 位于在支撑架 5 的内侧。
同时，灯头主体 2 的外部设有外螺纹 23 ，盖状壳体 3 的内壁设有台阶 31 ，并由该台阶分成两部分：盖状壳体 3 内壁的上部 33 与管体 1 外部配合，盖状壳体 3 内壁的下部 32 设有与灯头主体 2 外螺纹 23 相配合的内螺纹，另外，盖状壳体 3 的底部设有容纳导电针 22 伸出的通孔 34 ；装配时，将密封圈 6 安放在内台阶面上，当盖状壳体 3 螺纹连接在灯头主体 2 上后，密封圈 6 夹紧在盖状壳体 3 的台阶面 31 与管体 1 的端面之间。密封圈 6 能避免水气和雾气进入 管体1 内部，起到防水防雾的功能。
灯头主体 2 上与光源板 4 的相对端面上设有相互对称的金属弹片 13 （如铜片），如附图 6 所示，金属弹片 13 包括与导电针 22 相互铆接在一起的基板 13a ，基板 13a 上设有相互对称的两组夹脚 13b ，两组夹脚 13b 之间形成卡接光源板 4 的卡槽，当 LED 灯管组装时，光源板 4 卡装在该卡槽内并与金属弹片 13 实现电连接，金属弹片 13 的另一端与灯头的导电针 22 电连接。
另外，为了保证导金属弹片 13 不会受碰撞变形，以及防触电等，如附图 5 所示，在灯头主体 2 的端部还设有支撑金属弹片 13 的支撑挡板 11 。
在上述实施例中，由于灯头的灯头主体 2 与支撑架 5 卡接，当在 LED 灯管的管体 1 内安装好带光源板 4 的支撑架 5 后，在支撑架 5 的两端分别卡接上灯头主体 2 ，然后在管体 1 两端的灯头主体上旋上盖状壳体 3 即可将灯头、管体 1 、光源板 4 和支撑架 5 连接成一个整体。同时，由于灯头设置成螺纹连接的灯头主体 2 和盖状壳体 3 两部分，而且灯头主体 2 的外径略小于管体 1 的内径，因此当 LED 灯管因部分损坏需要维修或更换时，只需旋下作为灯头一部分的盖状壳体 3 ，便可以将灯头主体 2 及光源板 4 和支撑架 5 一体从管体 1 内抽出，从而轻松地从 支撑架5 上取下灯头主体 2 ，轻松实现维修更换的目的。另外，实施例中的灯头主体 2 上对称设置金属弹片 13 ，该金属弹片 13 可与作为光源的光源板 4 之间直接卡装构成电连接，取代以往的电源导线连接，因此使得 LED 灯的安装、拆卸、更换、维修以及用 LED 灯管替代普通日光灯管变得非常便捷。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，因此，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。

Claims (10)

  1. 一种 LED 灯管结构 ，包括管体、设有导电针的灯头，设置在管体内的光源板及支撑光源板的支撑架，其特征在于：所述支撑架的截面为弧形，所述灯头与支撑架相对的端面设有卡钩，所述支撑架的弧形表面上设有与卡钩对应的卡孔，所述灯头装配在管体上后，灯头的卡钩卡定在支撑架的卡孔内；且所述灯头的最大外径大于管体的内径。
  2. 根据权利要求 1 所述的 LED 灯管结构 ，其特征在于：所述灯头的端面设有沿轴向延伸的弧形延伸块，所述卡钩设置在弧形延伸块的末端。
  3. 根据权利要求 2 所述的 LED 灯管结构 ，其特征在于：所述弧形延伸块末端的卡钩为两个或两个以上，弧形延伸块在任一卡钩的两侧均设有缺口； 支撑架 上的卡口数量与卡钩数量相一致。
  4. 根据权利要求 2 所述的LED灯管结构 ，其特征在于：所述弧形延伸块截面的弧形与支撑架截面的弧形为同心弧。
  5. 根据权利要求 1 至 4 任一项所述的LED灯管结构 ，其特征在于：所述灯头装配后，弧形延伸块位于在支撑架的内侧。
  6. 根据权利要求 5 所述的LED灯管结构 ，其特征在于：所述支撑架为沿管体长度方向截面一致的型材，所述卡口冲压而成。
  7. 根据权利要求 5 所述的 LED 灯管结构 ，其特征在于：所述灯头包括灯头主体以及盖状壳体，所述灯头主体的外部设有外螺纹，盖状壳体内壁的上部与管体外部配合，盖状壳体内壁的下部设有与灯头主体外螺纹相配合的内螺纹，盖状壳体的底部设有容纳导电针伸出的通孔；所述卡钩设置在灯头主体上，灯头主体卡装在支撑架上，所述盖状壳体螺纹连接在灯头主体上。
  8. 根据权利要求 7 所述的 LED 灯管结构 ，其特征在于：所述灯头主体的最大外径小于或等于管体的内径。
  9. 根据权利要求 7 所述的 LED 灯管结构 ，其特征在于：所述盖状壳体内设有内台阶，所述内台阶面上设有密封圈，所述盖状壳体与管体组装后，密封圈夹紧在盖状壳体的台阶面与管体的端面之间。
  10. 根据权利要求 5 所述的 LED 灯管结构 ，其特征在于：所述灯头与光源板的相对端面上设有相互对称的金属弹片，所述光源板的端部卡设在对称的金属弹片之间并电连接，金属弹片的另一端与灯头的导电针电连接
PCT/CN2010/079472 2009-12-15 2010-12-06 一种led灯管结构 WO2011072580A1 (zh)

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WO2015148207A1 (en) * 2014-03-25 2015-10-01 Cree, Inc. Led lamp
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