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CN101487583B - 照明装置 - Google Patents

照明装置 Download PDF

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Publication number
CN101487583B
CN101487583B CN2008103001157A CN200810300115A CN101487583B CN 101487583 B CN101487583 B CN 101487583B CN 2008103001157 A CN2008103001157 A CN 2008103001157A CN 200810300115 A CN200810300115 A CN 200810300115A CN 101487583 B CN101487583 B CN 101487583B
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light source
heat conduction
lighting device
heat
substrate
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CN101487583A (zh
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徐弘光
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Foxsemicon Integrated Technology Shanghai Inc
Foxsemicon Integrated Technology Inc
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Foxsemicon Integrated Technology Shanghai Inc
Foxsemicon Integrated Technology Inc
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Priority to CN2008103001157A priority Critical patent/CN101487583B/zh
Priority to US12/202,576 priority patent/US7810953B2/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. for ambient lighting
    • F21S6/003—Table lamps, e.g. for ambient lighting for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
    • 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
    • F21V19/0045—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by tongue and groove connections, e.g. dovetail interlocking means fixed by sliding
    • 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
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • 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
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • 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
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0457—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling 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
    • F21V29/763—Cooling 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • 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]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

本发明涉及一种照明装置，其包括一光源模组及一与其相结合的电源模组。该光源模组包括一基板、至少一固态发光元件、多个电极端及多个第一导热齿状结构。该基板具有一第一表面及一与其相对的第二表面，该至少一固态发光元件与多个电极端电连接且均设置在第一表面，该多个第一导热齿状结构设置在第二表面。该电源模组包括一壳体、多个电源端及多个第二导热齿状结构，该壳体具有一光源插槽及设置在光源插槽底部的导热部，该多个电源端设置在光源插槽内，该多个第二导热齿状结构设置在光源插槽底部且与导热部热连接，该光源模组可拆卸地插设于该光源插槽内以使第一导热齿状结构与第二导热齿状结构相啮合并使多个电极端与多个电源端电连接。

Description

照明装置
技术领域
本发明涉及一种照明装置，特别是涉及一种利用发光二极管等固态发光元件的照明装置。
背景技术
现在，发光二极管(Light Emitting Diode，LED)已经被广泛应用到很多领域，在此，一种新型发光二极管可参见Daniel A.Steigerwald等人在文献IEEE Journal on SelectedTopics in Quantum Electronics，Vol.8，No.2，March/April 2002中的IlluminationWith Solid State Lighting Technology一文。发光二极管一般可发出特定波长的光，例如可见光，但是发光二极管所接收能量的大约80~90％被转换为热量，其余的能量才被真正转换为光能。因此，发光二极管发光所产生的热量必须被疏散掉以保证发光二极管的正常运作。
如图1所示，一种照明装置10，其包括一壳体11，一个光源模组12及一个灯罩13。该光源模组12设置在该壳体11中，且该灯罩13设置在该光源模组12的上方以保护该光源模组12。该光源模组12包括：一个印刷电路板(Printed Circuit Board，PCB)121、设置在该印刷电路板121上的一个金属线路层122与多个发光元件123(如，LED)，以及覆盖该发光元件123的封装体124。该多个发光元件123与该金属线路层122电性连接。然而，该多个发光元件123所产生的热量不能及时有效的从该壳体11中排除，进而降低了该多个发光元件123的发光效率。由此可见，有必要提供一种散热效率较高的照明装置。
发明内容
以下将以实施例说明一种散热效率较高的照明装置。
一种照明装置，其包括一个光源模组及一个与该光源模组相结合的电源模组，该光源模组包括一个基板、至少一个固态发光元件、多个电极端及多个第一导热齿状结构，该基板具有一个第一表面及一个与该第一表面相对的第二表面，该至少一个固态发光元件与该多个电极端电连接且均设置在该基板的第一表面，该多个第一导热齿状结构设置在该基板的第二表面；该电源模组包括一个壳体、多个电源端及多个第二导热齿状结构，该壳体具有一个光源插槽及设置在该光源插槽底部的导热部，该多个电源端设置在该光源插槽内，该多个第二导热齿状结构设置在该光源插槽底部且与该导热部热连接，该光源模组可拆卸地插设于该光源插槽内以使该第一导热齿状结构与该第二导热齿状结构相啮合并使该多个电极端与该多个电源端电连接。
与现有技术相比，该光源模组插入该电源模组后，该第一导热齿状结构与该第二导热齿状结构相啮合，二者之间形成良好的热性接触且具有较大的接触面积，所以该多个固态发光元件发光时产生的热量传入该第一导热齿状结构后，能够有效的通过第二导热齿状结构传入该导热部，进而快速的传导至该壳体之外，使得该照明装置具有较高的散热效率，进而提高了该多个固态发光元件的发光效率及使用寿命。
附图说明
图1为一种现有的照明装置的截面示意图。
图2为本发明实施例提供的照明装置的结构分解示意图。
图3为图2所示照明装置的组装示意图。
图4为图2所示照明装置包括电源模组具有一个基座及一个支撑杆的结构示意图。
具体实施方式
下面结合附图对本发明作进一步的详细说明。
请参见图2，本发明实施例提供一种照明装置20，其包括一光源模组21以及一个与该光源模组21相结合的电源模组22。在本实施例中，该光源模组21设于该电源模组22内，并与该电源模组22电连接。该光源模组21包括一个基板210、多个固态发光元件211，一个第一电极端212，一个第二电极端213及一个第一导热齿状结构214。
该基板210为矩形板状结构，其具有一个第一表面2101及一个与该第一表面2101相对的第二表面2102。该基板210的位于该第一表面2101与该第二表面2102之间的一个侧面设置有一个定位栓2103。该基板210所用材料为铜、铝、陶瓷或高分子材料等高导热材料。
该多个固态发光元件211均匀设置在该基板210的第一表面2101。在本实施例中，该固态发光元件211为发光二极管。该第一电极端212与第二电极端213均设置在该基板210的第一表面2101，其分别设置在该基板210的相对的两侧且分别与该多个固态发光元件211电连接。在本实施例中，该第一电极端212及第二电极端213均为长条状，使得其与电源模组22具有良好的电性接触。
该第一导热齿状结构214凸设在该基板210的第二表面2102。在本实施例中，该第一导热齿状结构214为长条形且具有基本相同的截面形状。
该基板210上还设置有一个信号端子215及一个与该信号端子215电连接的传感器216。该信号端子215可设置在该第一电极端212与第二电极端213之间。该传感器216与该多个固态发光元件211相邻设置，其可为温度传感器、光波长传感器或亮度传感器，用以感测该多个固态发光元件211的工作状态。
该电源模组22包括一个壳体221，一个灯罩222，一个第一电源端223、一个第二电源端224以及一个信号传输端225。
该壳体221包括一个底板2210，位于该底板2210的相对两侧的第一侧壁2211、第二侧壁2212，以及位于该第一侧壁2211与第二侧壁2212之间的第三侧壁2213。由该第一侧壁2211，第二侧壁2212及该第三侧壁2213围成一光源插槽226，该光源插槽226的与该第三侧壁2213相对的一侧具有一开口2214。该底板2210具有一导热部2215，且该底板2210的内侧设置有多个第二导热齿状结构227，该多个第二导热齿状结构227均沿远离该底板2210的方向延伸。该导热部2215由导热材料制成，例如铜、铝等，其与该底板2210可为分体结构或一体成型成型结构。在本实施例中，该导热部2215与该底板2210为分体结构，且该多个第二导热齿状结构227均与该导热部2215热连接。该光源模组21可经由该开口2214插入该光源插槽226内，且该第一导热齿状结构214与该第二导热齿状结构227相啮合。
该灯罩222设置在该壳体221内且与该底板2210相对，即设置在该光源插槽226的与其底部相对的一侧，该光源模组21发出的光线经由该灯罩222射出。该灯罩222可为平面透镜、凹透镜、凸透镜、菲涅耳透镜(Fresnel Lens)或其他具有周期性结构的透镜。
该第一电源端223，该第二电源端224及该信号传输端225分别设置在该壳体221的第一侧壁2211、第二侧壁2212及第三侧壁2213的内侧。该第三侧壁2213的内侧边缘处设置有一个定位孔2216，该基板210上的定位栓2103可对应插入该定位孔2216内，从而可使得该光源模组21较牢固的固定在该光源插槽226内。
请参见图3，当该光源模组21插入该电源模组22内时，该基板210上的定位栓2103对应插入该第三侧壁2213内侧的定位孔2216内，该第一导热齿状结构214与该第二导热齿状结构227相啮合以形成良好的热接触，该第一电极端212、第二电极端213、信号端子215分别与该第一电源端223、第二电源端224、信号传输端225电连接。该第一电源端223与该第二电源端224分别与一个外部电源201相连，由该外部电源201向该多个固态发光元件211提供电能。该信号传输端225与一控制器202相连，该控制器202与该外部电源201相连。该传感器216感测到的该多个固态发光元件211的工作状态信息传入该控制器202，该控制器202根据接收到的信息对该外部电源201发出相应的驱动信号，该外部电源201根据接收到的驱动信号对该多个固态发光元件211分别进行控制，即调节对该多个固态发光元件211所施加的电压及电流。值得注意的是，该第一导热齿状结构214与该第二导热齿状结构227所用材料为铜、铝等高导热材料。为了使该第一导热齿状结构214与该第二导热齿状结构227之间形成更好的热性连接，可在二者之间设置导热胶203，例如硅胶、银胶等。
当该光源模组21插入并固定在该电源模组22中后，该第一导热齿状结构214与该第二导热齿状结构227之间形成良好的热性接触且具有较大的接触面积，所以该多个固态发光元件211发光时产生的热量传入该第一导热齿状结构214后，能够有效的通过第二导热齿状结构227传入该导热部2215，进而快速的传导至该壳体221之外，使得该照明装置20具有较高的散热效率，进而提高了该多个固态发光元件211的发光效率及使用寿命。
另外，该照明装置具有组装简便的特点，即将该光源模组21从该开口2214插入该电源模组22的光源插槽226内，并使该基板210上的定位栓2103对应插入该第三侧壁2213内侧的定位孔2216内即可完成安装；对该光源模组21施加一适当的拉力即可使该定位栓2103从该定位孔2216中脱离，从而完成拆除动作。
可以理解的是，该壳体221也可具有其它形状，并以不同的方式与该灯罩222结合，只要便于该光源模组21装卸即可。请参见图4，该电源模组22还可包括一个基座228及一个支撑杆229，该支撑杆229的一端与该基座228相连，其另一端与该壳体221的第三侧壁2213相连。该支撑杆229是柔性的，从而可任意调节该光源模组21所处的位置及出光角度，以适应不同的实际需要。
另外，本领域技术人员还可于本发明精神内做其它变化，只要其不偏离本发明的技术效果，这些依据本发明精神所做的变化，都应包含在本发明所要求保护的范围之内。

Claims (10)

1.一种照明装置，其包括一个光源模组及一个与该光源模组相结合的电源模组，该光源模组包括一个基板、至少一个固态发光元件、多个电极端及多个第一导热齿状结构，该基板具有一个第一表面及一个与该第一表面相对的第二表面，该至少一个固态发光元件与该多个电极端电连接且均设置在该基板的第一表面，该多个第一导热齿状结构设置在该基板的第二表面；该电源模组包括一个壳体、多个电源端及多个第二导热齿状结构，该壳体具有一个光源插槽及设置在该光源插槽底部的导热部，该多个电源端设置在该光源插槽内，该多个第二导热齿状结构设置在该光源插槽底部且与该导热部热连接，该光源模组可拆卸地插设于该光源插槽内以使该第一导热齿状结构与该第二导热齿状结构相啮合并使该多个电极端与该多个电源端电连接。
2.如权利要求1所述的照明装置，其特征在于：该光源模组还包括一个信号端子及一个与该信号端子电连接的传感器，该信号端子与该传感器均设置在该基板的第一表面且与该多个电极端相邻，该传感器用于感测该至少一个固态发光元件的工作状态。
3.如权利要求2所述的照明装置，其特征在于：该电源模组还包括一个灯罩，其设置在该光源插槽的与其底部相对的一侧，该光源模组发出的光线经由该灯罩射出。
4.如权利要求3所述的照明装置，其特征在于：该灯罩为透镜。
5.如权利要求1所述的照明装置，其特征在于：该第一导热齿状结构为长条形，其由该基板的第二表面向外凸起设置。
6.如权利要求1所述的照明装置，其特征在于：该多个第二导热齿状结构与该壳体的导热部为一体成型结构。
7.如权利要求1所述的照明装置，其特征在于：该多个第一导热齿状结构与该多个第二导热齿状结构之间设置有导热胶。
8.如权利要求1所述的照明装置，其特征在于：该多个第一导热齿状结构与该多个第二导热齿状结构具有相同的截面形状。
9.如权利要求1所述的照明装置，其特征在于：该壳体的一光源插槽侧壁上设置有一定位孔，该光源模组的基板上设置有一个用于与该定位孔相扣合的定位栓。
10.如权利要求1所述的照明装置，其特征在于：该电源模组还包括一个基座及一个支撑杆，该支撑杆的一端与该基座相连，其另一端与该壳体相连。
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