WO2014106368A1 - 一种led投光灯模组 - Google Patents

一种led投光灯模组 Download PDF

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Publication number
WO2014106368A1
WO2014106368A1 PCT/CN2013/076321 CN2013076321W WO2014106368A1 WO 2014106368 A1 WO2014106368 A1 WO 2014106368A1 CN 2013076321 W CN2013076321 W CN 2013076321W WO 2014106368 A1 WO2014106368 A1 WO 2014106368A1
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WO
WIPO (PCT)
Prior art keywords
led
power
source
power source
box
Prior art date
Application number
PCT/CN2013/076321
Other languages
English (en)
French (fr)
Inventor
马志平
Original Assignee
深圳市耀嵘科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市耀嵘科技有限公司 filed Critical 深圳市耀嵘科技有限公司
Priority to PL13870227T priority Critical patent/PL2942559T3/pl
Priority to JP2015600120U priority patent/JP3202641U/ja
Priority to US14/759,226 priority patent/US20150338075A1/en
Priority to CA2897126A priority patent/CA2897126A1/en
Priority to EP13870227.9A priority patent/EP2942559B1/en
Publication of WO2014106368A1 publication Critical patent/WO2014106368A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F21V23/008Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing the casing being outside the housing of the lighting device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening 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
    • F21V17/12Fastening 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 by screwing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14Adjustable mountings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14Adjustable mountings
    • F21V21/30Pivoted housings or frames
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/502Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00Gas-tight or water-tight arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/023Power supplies in a casing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10Outdoor lighting
    • F21W2131/107Outdoor lighting of the exterior of buildings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2105/00Planar light sources
    • F21Y2105/10Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Definitions

  • the new type of water involves LED floodlights, especially jt-related LED floodlights.
  • Spotlights are also called projection lights, spotlights, pans, t lights, etc.
  • LED floodlights are mainly used to illuminate decorative lighting, ij, and commercial lighting.
  • the cast lamp of the current technology is full of a single lamp ⁇ , the power box is also die-cast, and the power of the lamp is difficult to change. If it is necessary to increase the power of the illuminating light, it can only be realized by an array of LED floodlights, and a single over-packaged LED floodlight is arranged together, so that the lamp/volume is increased, and the lamp power is increased. Small good tune ' ⁇
  • the utility model provides an LED floodlight group with low cost, convenient maintenance and fast heat dissipation.
  • Ben Suichuan - a type of LED flood light module, including at least two LED flood lights,
  • the power box of the coffin, the power source box includes a plurality of power output lines and two LED spotlights for connection.
  • the source box is a malleable profile structure, and the ends of the 53 ⁇ 4 structure are connected to each other by a similar structure.
  • the preferred scheme is: the same structure includes a power fixing piece for fixing the power source, and a connection
  • the connecting bracket, the ⁇ source baffle and the spinning cover, the power fixing piece of the power supply is fixed to the power supply box ⁇ , the two ends are supported by the source block and the screw cap to the power fixing piece, and the connecting bracket is clamped at both ends ⁇ ⁇ Spin the cap, connect by thread and the cap.
  • the fixing structure further includes a waterproofing block, and the shape of the waterproof ring matches the broken cross section of the ill source.
  • the power source and each of the LED floodlights are electrically connected to each other.
  • the LED floodlight comprises an LED light source disposed in the light frame, and the heat sink is disposed behind the light frame, wherein the heat sink is disposed at the front end of the LED light source.
  • the structure of the Shanding-Luanchuanchuan school group and the structure of the ⁇ 3 ⁇ 4 material can be increased in length. In this way, the power of the lamp urn can be changed only by increasing the number of modules, without additional mold addition, the cost of the mold is reduced, and the cost is reduced. .
  • Figure 1 is a plan view of the new 3 ⁇ 4 LED flood light module:
  • the module 1 includes a plurality of LED floodlights 11 and a power source box 12. In this embodiment, only the three LED floodlights 11 are disclosed. Depending on the power requirements, any number of LED floodlights 11 are connected.
  • the LED floodlight 11 includes a light frame 111 for sequentially loading the LED light emitting chip 112, according to the arrangement of the LED light emitting chip 112!
  • the array lens 113, and the glass 114, the array of the light-emitting chips 112 are disposed on the aluminum plate 11S, and the light beam reflected by the LED light-emitting chip 112 is concentrated by the lens 113 and transmitted through the glass piece 114, ie,
  • the bottom of the lamp frame 111 further includes a heat sink 117. Since the LED floodlights 11 are not provided with the heat sinks 116, ⁇ 1, A heat sink 117 is also arranged on the top, so that the LED floodlight 11 forms a convection, thereby achieving a good heat dissipation effect.
  • the power box 12 is configured as a malleable profile structure, and the same characteristics of the slats, the K degree of the source 12 can be lengthened and shortened according to requirements, and both ends of the lining structure pass through the fixed structure 121.
  • the fixing structure 121 includes a power source fixing piece 122 that defines a power source, a splicing bracket 123, a battery box 1241, and a screw cap 124.
  • the power fixing piece 122 of the fixed IV power source 120 is viewed from the power box 12 .
  • the receiving bracket 123 includes a three-segment structure, and the first segment 1231, the second segment 1232, and the third segment 1233 are substantially the same, and the second and second segments 1231 and 1232 are provided.
  • the ribbed through hole 126, the ⁇ , is a good fixed chuan for J', and the 1_: degree of the third segment 1233 is set to t: skin of the power supply box 12. Place The center of the 124's ft' threaded hole 127, and the 3 ⁇ 4 bolt 128 match.
  • the fS i structure 121 is fixed in the manner that: the light power source 120 is fixed on the power fixing piece 122
  • the ⁇ ⁇ structure also includes a waterproof 129, the shape of the waterproof ring 129 and the cross section of the power supply box are matched, and the light frame is also waterproof, Waterproof effect. Not 14 tired.
  • the power supply box 12 further includes a source slot 133, and the fixing piece 122nf is inserted into the power source slot 133, so that the power source 120 is in the power supply box. 12 does not shake.
  • the power box 12 is provided with a plurality of power source output lines 131 , and the LED flood light 11 k is set to /, The most power input line 132 is connected, and the power output line 131 and the power input line 132 are connected by plugging and unplugging.
  • ⁇ LED flood light 11 ( ⁇ is equipped with a heat sink, which increases the effective heat dissipation area, can make the air flow 3 ⁇ 4 good, so as to achieve better heat dissipation.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种LED投光灯模组(1),包括至少一个LED投光灯(11),其特征在于:包括一型材的电源盒(12),型材电源盒(12)连接固定一个或多个泛光灯,电源盒(12)上包括多个电源输出线(131)和各个LED投光灯(11)采用防水插拔方式电连接。由于灯具采用模组结构且电源盒(12)是型材结构可自由增加长度,模具成本投入减少,而降低成本;由于所述电源盒(12)和各个LED投光灯(11)采用插拔方式电连接,可单独拆卸,维修方便;LED投光灯(11)的前后都设置有散热器(117),这样可增大有效散热面积,可使空气流动性更好,从而达到更好的散热效果。

Description

说 明 书 一种 LED投光灯模组
技术领域
水 新型涉及到 种 LED投光灯, 尤 jt-涉及 LED投光灯投组。 技术背景
投光灯又叫投射灯、射灯、泛) t灯等等, LED投光灯主要 W来做违筑装饰照 明之) ij, 以及商业^间照明 ffl。
现冇技术的 铸投光灯都足单一的灯^ , 电源盒也是压铸的, 灯具功率难 以改变。 如果需要增大发光的功率, 只能通过 LED投光灯的阵列形式实现, 而 单的过多个封装好的 LED投光灯排列在一起, 这烊使得灯 / 体积增人, 且灯 Λ功率小好调 'Ι^
W而, 需要投光灯模组来改变灯具的功率。 实用新型内容
为了克服以 h技术问题, 本实用新¾提供一种成本低、 维修方便、 散热快 的 LED投光灯 组。
广 现 1:述 ! j的, 本实川新 —种 LED投光灯模组, 包括至少两个 LED 投光灯,
Figure imgf000002_0001
包拈 材的电源盒, 屯源盒上包括多个电源输出线和 ^个 LED投光灯连接供屯。
Jt中, 优选 //案为: 所述屯源盒为可延展的型材结构, 5¾材结构两端通过 同定结构将电源 ¾ Γ独 封 W的型材屮。
K-屮, 优选方案为: 所述同定结构包括将电源固定住的电源固定片、 一连
1
替换页 (细则第 26条) 说 明 书
接支架、 屯源挡板以及旋压盖, 所述闳定有电源的电源固定片覽丁电源盒屮, 两端通过 源挡扳和旋 盖抵 所述电源固定片, 连接支架两端夹持 Οί旋压盖, 通过螺纹紧固和锭 ^盖连接。
其屮, 优选方案为: 所述固定结构还包括一防水阁, 所述防水圈的形状和 ill源 ί¾的断而截面匹配。
其屮, 优选方案为: 所述电源 和各个 LED投光灯 川防水插拔力式电连 接。
冲, 优选力'案为: 所述 LED投光灯包括灯框内设置有 LED光源, 以及灯 框后瑙设 ^散热器, 】1;特征在 Γ: 还包括 散热片设置于 LED光源前端。
本' λ:ίΠ新 的优点为:
1. 山丁-灯 Α釆川校组结构且屯源盒足 ¾材结构可 由增加长度, 这样改变 灯 Λ的功率只需增加模组数量, 无需另外增加模具, 模具成本投入减 少, 而降低成本。
2. 山 T屯源盒和各个 LED投光灯采 插拔方式连接, 单独拆卸, 维修力'
3. ^个 LED投光灯的前后都设置有散热器, 这样增大存效散热而积, 可使
Λί流动忭史好, 从而达到¾好的散热效果。 咐图说明
图 1为本实用新 ¾ LED投光灯模组的平面图:
2为本实 l|j新型 LED投光灯校组的爆炸图。
2
替换页 (细则第 26条) 说 明 书
具体实施方式
以卜-结合附图 i羊细描述木实用新型的 体实施方式。
参考图 1, 图 2, 本实 ij新型 LED投光灯模组的技术 //案为: 该模组 1包括 多个 LED投光灯 11以及屯源盒 12。 本实施例仅仅揭露了三个 LED投光灯 11的 ' 施方式, 依据功率的需要, π了以连接任意多个的 LED投光灯 11。
Λ屮, 所述 LED投光灯 11包括灯框 111, 用以依次装入 LED发光芯片 112、 依据所述 LED发光芯片 112的排列设!!的阵列透镜 113, 以及玻璃 114, 所述发 光芯片 112阵列设置于铝 ¾板 11S上, 所述 LED发光芯片 112反射的光束借由 透镜 113汇聚透过玻璃片 114射出, :屮, 所述灯框 111 面安霄多数散热片 116. |nj时, 灯框 111的底部还包括一散热器 117, 由于所述 LED投光灯 11不仅 ^面设¾有所述散热片 116, ΙΪΪΪ Ι1, 顶部也设覽有散热器 117, 这样, LED投光 灯 11 形成对流, 从而起到史好的散热效 ¾。
中, 所述电源盒 12设置为可延展的型材结构, 山丁 材的同有特性, 所 述屯源^ 12的 K度可以依据需要 ΰ ώ加长和缩短, 型衬结构两端通过固定结构 121将屯源 120阆定于独 的型材结构屮。所述固定结构 121包括将电源同 定忭的屯源闳定片 122、 迮接支架 123、 屯池盒 ^板 1241以及旋 盖 124, 所 述 定 IV电源 120的电源固定片 122覽于电源盒 12的容纳孔 125中, 其中, 所 述连接支架 123包括迕续三段结构, 第一段 1231、 第二段 1232和第三段 1233 基本 其屮, 所述^ 、 二段 1231、 1232设霄有蟝纹通孔 126, 其屮, 为 J'起到 ϋί好的固定作川, 第三段 1233的1_:度 Μ好设置成电源盒 12的 t :皮。 所
Figure imgf000004_0001
124的中心 ft'螺纹孔 127, 和问 ¾螺栓 128匹配。
K-屮, 所述 fS i结构 121固定方式为: 光将电源 120同定在电源固定片 122
替换页 (细则第 26条) 说 明 书
I:. 后装 f容纳孔 125屮, 利 W左右对称的旋; l 124抵住所述闳定片 122, 螺柃 128穿过连接支架 123 I:左右的蟝紋通孔 126,后达到旋压盖 124的嫘纹孔 127, 旋转螺栓 128, 进入旋 的螺纹孔 127, 从而借山连接支架 123的第 、 二段 1231、 1232向屯源盒 12中心夹紧, 从而达到固定的 的。
为 ll源盒 12 Αίϊ ί好的密封效果, 闳定结构还包括 -防水阁 129, 所述 防水圈 129 的形状和电源盒的断而截面匹配, 同时, 灯框也具冇防水阇, 都是 起到防水功效. 不 14累述。
) 、、i 屯源 120迮屯源盒 12屮阆定不晃动,电源盒 12还包括屯源 槽 133, 所述固定片 122 nf以插入屯源槽 133中,从而使屯源 120在电源盒 12中不晃动。
i J '实现屯源盒 12和各个 LED投光灯 11屮间的电迮接, 电源盒 12设胃^ 多条屯源输出线 131, 相,、 LED投光灯 11 k设冇对 /、¾数最的电源输入线 132, 所述屯源输出线 131和所述电源输入线 132通过插拔 式连接。
木实 ffl新 的优点为-
1. 山于灯 A采 llj校组结构 ii电源盒 12足型材结构 nj' (¾由增加长度, 这样改 变灯 A.的功率只需增加模组数 fi,无^ W外增加模 模 ¾成本投入减少, ιΤι降低成本。
2. 山丁 -电源盒 12和 个 LED投光灯 11釆 拔方式连接, nj'单独拆卸,维 修;便-
3. ^个 LED投光灯 11的 ( ίί后都设覽有散热器, 这样增大有效散热面积, 可 使空 流动性 ¾好, 从而达到更好的散热效果。
以上所述 #, 仅为本 ¾川新 实施例而 , ί'非用丁 '限制本实川新型 的范 凡依本 用新型屮请专利范围所作的等效变化或修饰, 皆为木实 m新
替换页 (细则第 26条) 说 明 书 型所涵蘊。
5
替换页 (细则第 26条)

Claims

权 利 要 求 书
1. —种 LED投光灯模組, 包括至少一个 LED投光灯, 其特征在 包括 - K材的电源盒,电源盒上包括多个电源输出线和各个 LED投光灯电 连接。
2. 如权利要求 1所述的投光灯模组, 特征在于: 所述屯源盒为 ^延展 的¾材结构, 材结构两端通过阆定结构将电源同定 f独立封闭的型 材屮。
3. 如权利要求 2所述的投光灯模组, 其特征在于: 所述固定结构包括将 屯源同定住的屯源同定片、 - ·ϋ:接支架、 电源挡板以及旋压盖, 所述 固定有电源的屯源固定片置于电源盒中,两端通过屯源 ^板和旋压盖 抵 Γ所述电源固定片, 连接支架两端夹持住旋 盖, 通过蟪纹紧闳和 旋 连接。
1. 如仪利要求 2所述的投光灯投^, 其特征在于: 所述固定结构还包括 一防水阁, 所述防水阁的形状和电源盒的断面截面匹配。
5. 如权利要求 1所述的投光灯模组, 特征在于:所述电源盒和各个 LED 投光灯采用防水插拔力式电连接。
6. 如权利要求 1所述的投光灯模组, Κ·特征在于: 所述 LED投光灯包括 灯框内设 S i LED光源, 以及灯框后端设 S有散热器,还包拈一散热 片设 ¾ j: LED光源前端。
6
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