WO2013139160A1 - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
WO2013139160A1
WO2013139160A1 PCT/CN2012/087507 CN2012087507W WO2013139160A1 WO 2013139160 A1 WO2013139160 A1 WO 2013139160A1 CN 2012087507 W CN2012087507 W CN 2012087507W WO 2013139160 A1 WO2013139160 A1 WO 2013139160A1
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WO
WIPO (PCT)
Prior art keywords
light guide
guide plate
base
led lamp
light
Prior art date
Application number
PCT/CN2012/087507
Other languages
French (fr)
Chinese (zh)
Inventor
王正月
吴海滨
梁柏战
叶琴
Original Assignee
海尔集团公司
青岛海尔股份有限公司
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Application filed by 海尔集团公司, 青岛海尔股份有限公司 filed Critical 海尔集团公司
Publication of WO2013139160A1 publication Critical patent/WO2013139160A1/en

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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
    • F21S6/00—Lighting devices intended to be free-standing
    • 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]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging

Definitions

  • the present invention relates to a lighting device, and more particularly to a low cost uniform surface light source lighting device.
  • the main methods are: setting the LED light on at least two sides of the light guide plate to enhance the brightness of the backlight, in order to play a reflective role, on the back of the light guide plate And the side of the LED lamp is not provided with a reflecting surface or a layer of reflective material is directly sprayed.
  • the front surface of the light guide plate is provided with a uniform film.
  • the metal frame is embedded around the light guide plate.
  • the separate set of reflective surface or uniform film not only increase the cost, but also complex process, low production efficiency
  • the light guide plate is provided with a metal frame one week, which further increases the cost, and the surrounding frame will cause loss of light area, and the edge light is uneven.
  • the present invention provides a lighting device with low manufacturing cost and a large area uniform surface light source.
  • a lighting device includes an integrated lamp cover, a light guide plate, and a base.
  • the base is provided with a base side flange at one time, and the lamp cover is correspondingly provided with a lamp cover side flange that is engaged with the base side flange.
  • the light guide plate is installed between the lamp cover and the base, and an LED lamp substrate is mounted on either side of the light guide plate, and an LED lamp is fixed on the LED lamp substrate.
  • the side cover of the lamp cover is provided with a claw, and the corresponding position of the side flange of the base is provided with a card slot that is engaged with the claw.
  • the light guide plate is matched in a groove surrounded by the base and the side flange of the base.
  • the back surface of the light guide plate is covered with a reflective film.
  • the side of the light guide plate on which the LED lamp substrate is mounted is further provided with a bottom frame, and the front and back sides of the light guide plate are sandwiched between the two sides of the bottom frame, and the LED lamp substrate is located in the frame of the bottom frame.
  • the bottom frame is a metal frame.
  • the lamp energy is prevented from being wasted and the top light is too bright, and a reflective sheet is attached to one side of the light guide plate opposite to the LED lamp substrate.
  • the light guide plate is a transparent plate.
  • the lampshade is a translucent cover, and when the emitted light passes through the lampshade, it can achieve a uniform light effect.
  • non-uniformly distributed reflection points are printed, engraved, or pasted on the surface of the light guide plate.
  • the illumination device of the present invention only provides an LED lamp on one side of the light guide plate, which saves cost, and the side opposite to the LED lamp substrate on the light guide plate
  • the reflective sheet is attached to the side to achieve the effect of setting two sets of LED lights; by setting the lamp cover and the base, not only can the function of protecting the LED light and the light guide plate, but also the light cover can play a uniform light effect, and it is not required to be exclusively on the front side of the light guide plate.
  • the uniform film is provided, and the base can perform reflection. It is not necessary to provide a reflection sheet on the back surface of the light guide plate, and the light cover adopts a translucent cover, and the uniform light effect is better.
  • FIG. 1 is a schematic structural view of an embodiment of a lighting device according to the present invention.
  • Figure 2 is a right side view of the light guide plate 2 of Figure 1;
  • Fig. 3 is a partial enlarged view of Fig. 2;
  • Embodiment 1 as shown in FIG. 1,
  • the illuminating device of the embodiment includes an integrated lamp cover 1, a light guide plate 2, and a base 3, and the light guide plate 2 is installed between the lamp cover 1 and the base 3, as shown in FIG. 2, which is a right view of the light guide plate 2.
  • FIG. 3 which is a partial enlarged view of FIG. 2, it can be seen from FIG. 3 that an LED lamp substrate 4 is mounted on one side of the light guide plate 2, and the LED lamp 5 is fixed on the LED lamp substrate 4.
  • the LED lamp substrate 4 can be mounted on either side of the light guide plate 2.
  • the light guide plate 2 is a transparent plate, and a material having a transparent effect such as acrylic or PCR can be used.
  • the lampshade 1 preferably adopts a translucent cover, and when the emitted light passes through the lampshade, it can achieve a uniform light effect without separately providing a uniform film on the front surface of the light guide plate.
  • the lampshade 1 and the base 3 are installed in a structure in which the base 3 is provided with a base side flange 6 at a time, and the lampshade 1 is correspondingly provided with the base side flange 6
  • a through hole is provided at the corresponding side of the lamp cover side flange 7 and the base side flange 6 respectively, and is fixed by screws or the like.
  • the inner surfaces of the base 3 and the base side flange 6 have reflective functions. Generally, it is not necessary to separately provide a reflection sheet on the back side of the light guide plate and the side directly on the non-LED lamp, and the reflection sheet is also realized. To further reduce costs. Of course, in some special cases, such as when the light guide plate 2 is close to the base 3, a reflective film can be attached on the back surface of the light guide plate 2 to improve the reflective effect.
  • the light guide plate 2 can be fixed between the lamp cover 1 and the base 3, and the light guide plate 2 is preferably disposed on the base 3 and the base side flange 6 in conformity with the LED lamp substrate 4.
  • the light guide plate 2 may be fixed on the inner side of the base side flange 6, or the light guide plate 2 may be perforated, and the screw is fixed on the base 2 to achieve a stable effect.
  • a bottom frame 8 is further disposed on the side of the light guide plate on which the LED lamp substrate 4 is mounted, and the front and back sides of the light guide plate 2 are sandwiched at the bottom frame. Between the two sides of the 8 , the LED lamp substrate 4 is located within the frame of the bottom frame 8 .
  • the bottom frame 8 is preferably made of a metal frame, so that not only a good fixing effect but also a good heat dissipation effect can be achieved, which is advantageous for extending the service life of the LED lamp.
  • a reflective sheet 9 is attached to one side of the light guide plate 2 opposite to the LED lamp substrate 4. In order to reflect the light of the LED lamp back into the light guide plate 2, not only energy waste can be prevented, but also the light reflected by the reflection sheet can achieve the effect of setting a group of LED lamps, thereby increasing the illumination effect and reducing the cost.
  • non-uniformly distributed reflection points are printed, engraved, or pasted on the surface of the light guide plate 2.
  • the non-uniform arrangement of the reflection points is because the intensity of the position near the LED lamp 5 and the reflection sheet is relatively strong, and the reflection point can be set sparsely.
  • the light intensity at a position far from the LED lamp 5 and the reflection sheet is relatively weak.
  • the reflection points can be densely arranged to better distribute the light to obtain a large-area uniform surface light source.
  • the LED lamp is disposed only on one side of the light guide plate, which saves cost, and a reflective sheet is attached to one side of the light guide plate opposite to the LED lamp substrate, thereby achieving the effect of setting two sets of LED lamps.
  • the lamp cover and the base not only can the function of protecting the LED lamp and the light guide plate be protected, but also the lamp cover can be used for the uniform light effect, and the uniform light film is not required to be disposed on the front surface of the light guide plate, and the base can play a reflection role, without having to
  • the back side of the light guide plate is specially provided with a reflection sheet, and the lamp cover adopts a translucent cover, and the uniform light effect is better.
  • the device can be used in a refrigerator to illuminate the interior space of the refrigerator. Of course, it can also be applied to other electrical devices for illumination or used as a backlight for the advertising box.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)

Abstract

A lighting device comprises a lampshade (1), a light guide plate (2), and a base (3) that are mounted as a whole. The light guide plate (2) is mounted between the lampshade (1) and the base (3). An LED lamp substrate (4) is mounted on any side of the light guide plate (2), and an LED lamp (5) is fixed on the LED lamp substrate (4). The LED lamp is arranged on only one side of the light guide plate, so that the cost is reduced, and the brightness effect equal to that of two LED lamps is achieved. The lampshade and the base are arranged, so that not only the LED lamp and the light guide plate can be protected, but also the lampshade has a dodging effect, so that a dodging film is not required to be arranged on the front of the light guide plate, the base has a certain reflection effect, so that a reflection piece is not required to be arranged on the back surface of the light guide plate. The lampshade is a semitransparent shade, so that a more desirable dodging effect is achieved.

Description

一种照明装置  Lighting device
本申请要求了申请日为2012年03月19日，申请号为201220102220.1，发明名称为“一种照明装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。The present application claims the priority of the Chinese Patent Application, the entire disclosure of which is hereby incorporated by reference.
【技术领域】[Technical Field]
本发明涉及一种照明装置，具体地说，是涉及一种低成本的均匀面光源照明装置。 The present invention relates to a lighting device, and more particularly to a low cost uniform surface light source lighting device.
【背景技术】 【Background technique】
目前的LED背光灯照明装置，为了实现大面积面光源，主要采取的方式有：通过在导光板的至少两侧边设置LED灯以增强背光灯亮度，为了起到反光作用，通过在导光板背面以及未设有LED灯的侧边设置反射面或者直接喷涂一层反光物质，为防止光线不均匀，导光板的正面设有匀光膜，为了将上述结构固定，由于所设置的结构复杂，一般导光板周边镶有金属框，采用上述结构的缺点是：In the current LED backlight illumination device, in order to realize a large-area surface light source, the main methods are: setting the LED light on at least two sides of the light guide plate to enhance the brightness of the backlight, in order to play a reflective role, on the back of the light guide plate And the side of the LED lamp is not provided with a reflecting surface or a layer of reflective material is directly sprayed. In order to prevent uneven light, the front surface of the light guide plate is provided with a uniform film. In order to fix the above structure, due to the complicated structure, generally The metal frame is embedded around the light guide plate. The disadvantages of using the above structure are:
一、设置的LED灯过多，导致成本高；First, too many LED lights are set, resulting in high cost;
二、单独设置反射面或者匀光膜，不仅增加成本，而且工艺复杂，生产效率低；Second, the separate set of reflective surface or uniform film, not only increase the cost, but also complex process, low production efficiency;
三、导光板一周设置金属框，进一步增加了成本，而且周边的框会造成光面积损失，边缘光不均匀。Third, the light guide plate is provided with a metal frame one week, which further increases the cost, and the surrounding frame will cause loss of light area, and the edge light is uneven.
基于此，如何发明一种制造成本低、具有大面积均匀面光源的照明装置，是本发明主要解决的问题。Based on this, how to invent a lighting device having a low manufacturing cost and a large-area uniform surface light source is a main problem to be solved by the present invention.
【发明内容】 [Summary of the Invention]
本发明为了解决现有背光灯照明装置成本高、面光源效果不好的问题，提供了一种照明装置，制造成本低、具有大面积均匀面光源。In order to solve the problems of high cost and poor surface light source effect of the existing backlight illumination device, the present invention provides a lighting device with low manufacturing cost and a large area uniform surface light source.
为了解决上述技术问题，本发明采用以下技术方案予以实现：In order to solve the above technical problem, the present invention is implemented by the following technical solutions:
一种照明装置，包括安装一体的灯罩、导光板、以及底座，所述底座一周设置有底座侧翻边，所述灯罩对应设置有与底座侧翻边相扣合的灯罩侧翻边。所述导光板安装在灯罩与底座之间，且导光板的任一侧边安装有LED灯基板，所述LED灯基板上固定有LED灯。A lighting device includes an integrated lamp cover, a light guide plate, and a base. The base is provided with a base side flange at one time, and the lamp cover is correspondingly provided with a lamp cover side flange that is engaged with the base side flange. The light guide plate is installed between the lamp cover and the base, and an LED lamp substrate is mounted on either side of the light guide plate, and an LED lamp is fixed on the LED lamp substrate.
优选的，所述灯罩侧翻边上设置有卡爪，底座侧翻边相应位置处设置有与所述卡爪相扣合的卡槽。Preferably, the side cover of the lamp cover is provided with a claw, and the corresponding position of the side flange of the base is provided with a card slot that is engaged with the claw.
又进一步的，所述的导光板相吻合的设置在底座与底座侧翻边所围成的槽内。Further, the light guide plate is matched in a groove surrounded by the base and the side flange of the base.
所述的导光板的背面覆贴有一层反光膜。The back surface of the light guide plate is covered with a reflective film.
再进一步的，安装有LED灯基板的导光板一侧边还设置有底边框，导光板的正反两面夹在底边框的两条边之间，LED灯基板位于底边框的框内。Further, the side of the light guide plate on which the LED lamp substrate is mounted is further provided with a bottom frame, and the front and back sides of the light guide plate are sandwiched between the two sides of the bottom frame, and the LED lamp substrate is located in the frame of the bottom frame.
优选的，所述的底边框为金属框。Preferably, the bottom frame is a metal frame.
为了将LED灯的灯光反射回到导光板内，防止灯能量浪费和顶部灯光太亮，在所述导光板上与LED灯基板相对的一侧边贴有反射片。In order to reflect the light of the LED lamp back into the light guide plate, the lamp energy is prevented from being wasted and the top light is too bright, and a reflective sheet is attached to one side of the light guide plate opposite to the LED lamp substrate.
优选的，所述导光板为透明板。Preferably, the light guide plate is a transparent plate.
优选的，所述的灯罩为半透明罩，当射出的光线经过灯罩时，可以起到匀光效果。Preferably, the lampshade is a translucent cover, and when the emitted light passes through the lampshade, it can achieve a uniform light effect.
为了灯光的均布，在所述导光板的表面上印刷、雕刻、或者粘贴有非均匀分布的反射点。For the uniform distribution of the lights, non-uniformly distributed reflection points are printed, engraved, or pasted on the surface of the light guide plate.
与现有技术相比，本发明的优点和积极效果是：本发明的照明装置，只在导光板的一侧边设置LED灯，节省了成本，在导光板上与LED灯基板相对的一侧边贴有反射片，达到了设置两组LED灯的效果；通过设置灯罩和底座，不仅可以起到保护LED灯以及导光板的作用，而且灯罩可以起到匀光作用，不用专门在导光板正面设置匀光膜，底座可以起到反射作用，不用必须在导光板的背面设置反射片，灯罩采用半透明罩，匀光效果更佳。Compared with the prior art, the advantages and positive effects of the present invention are: the illumination device of the present invention only provides an LED lamp on one side of the light guide plate, which saves cost, and the side opposite to the LED lamp substrate on the light guide plate The reflective sheet is attached to the side to achieve the effect of setting two sets of LED lights; by setting the lamp cover and the base, not only can the function of protecting the LED light and the light guide plate, but also the light cover can play a uniform light effect, and it is not required to be exclusively on the front side of the light guide plate. The uniform film is provided, and the base can perform reflection. It is not necessary to provide a reflection sheet on the back surface of the light guide plate, and the light cover adopts a translucent cover, and the uniform light effect is better.
结合附图阅读本发明实施方式的详细描述后，本发明的其他特点和优点将变得更加清楚。Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments.
【附图说明】 [Description of the Drawings]
图1是本发明所提出的照明装置一种实施例结构示意图；1 is a schematic structural view of an embodiment of a lighting device according to the present invention;
图2是图1中导光板2的右视图；Figure 2 is a right side view of the light guide plate 2 of Figure 1;
图3是图2的局部放大图。Fig. 3 is a partial enlarged view of Fig. 2;
【具体实施方式】 【detailed description】
下面结合附图对本发明的具体实施方式作进一步详细地说明。The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
实施例一，参见图1所示， 本实施例的照明装置，包括安装一体的灯罩1、导光板2、以及底座3，所述导光板2安装在灯罩1与底座3之间，参见图2所示，为导光板2的右视图，参见图3所示，为图2的局部放大图，从图3中可以看到，导光板2的一侧边安装有LED灯基板4，所述LED灯基板4上固定有LED灯5。其中，LED灯基板4可以安装在导光板2的任一侧边。 Embodiment 1, as shown in FIG. 1, The illuminating device of the embodiment includes an integrated lamp cover 1, a light guide plate 2, and a base 3, and the light guide plate 2 is installed between the lamp cover 1 and the base 3, as shown in FIG. 2, which is a right view of the light guide plate 2. Referring to FIG. 3, which is a partial enlarged view of FIG. 2, it can be seen from FIG. 3 that an LED lamp substrate 4 is mounted on one side of the light guide plate 2, and the LED lamp 5 is fixed on the LED lamp substrate 4. The LED lamp substrate 4 can be mounted on either side of the light guide plate 2.
为了起到良好的导光效果，所述导光板2为透明板，可以采用亚克力、PCR等透明效果好的材质。所述的灯罩1优选采用半透明罩，当射出的光线经过灯罩时，可以起到匀光效果，不用专门在导光板正面设置匀光膜。In order to achieve a good light guiding effect, the light guide plate 2 is a transparent plate, and a material having a transparent effect such as acrylic or PCR can be used. The lampshade 1 preferably adopts a translucent cover, and when the emitted light passes through the lampshade, it can achieve a uniform light effect without separately providing a uniform film on the front surface of the light guide plate.
作为一个具体的实施例，在本实施例中灯罩1与底座3安装的结构为：所述底座3一周设置有底座侧翻边6，所述灯罩1对应设置有与底座侧翻边6相扣合的灯罩侧翻边7。为了增加两者扣合安装的稳定性，优选在所述灯罩侧翻边7上设置有卡爪71，底座侧翻边6相应位置处设置有与所述卡爪71相扣合的卡槽61。当然，也可以采用其他结构方式进行固定，比如分别在灯罩侧翻边7上和底座侧翻边6相应位置处设置通孔，采用螺钉固定等。As a specific embodiment, in the embodiment, the lampshade 1 and the base 3 are installed in a structure in which the base 3 is provided with a base side flange 6 at a time, and the lampshade 1 is correspondingly provided with the base side flange 6 The closed lampshade side flaps 7. In order to increase the stability of the fastening installation of the two, it is preferable to provide a claw 71 on the side flange 7 of the lampshade, and the corresponding position of the base side flange 6 is provided with a card slot 61 that is engaged with the claw 71. . Of course, other structural means can also be used for fixing, for example, a through hole is provided at the corresponding side of the lamp cover side flange 7 and the base side flange 6 respectively, and is fixed by screws or the like.
需要说明的是，底座3及底座侧翻边6的内表面均有反光作用，一般不需要在导光板的背面以及非LED灯直射的一侧边专门设置反射片，同样实现了反射片的作用，进一步降低成本。当然，在一些特殊情况下，比如导光板2距离底座3很近时，可以通过在导光板2的背面贴一层反光膜，以改善反光效果。It should be noted that the inner surfaces of the base 3 and the base side flange 6 have reflective functions. Generally, it is not necessary to separately provide a reflection sheet on the back side of the light guide plate and the side directly on the non-LED lamp, and the reflection sheet is also realized. To further reduce costs. Of course, in some special cases, such as when the light guide plate 2 is close to the base 3, a reflective film can be attached on the back surface of the light guide plate 2 to improve the reflective effect.
导光板2可以在灯罩1与底座3相扣合时被固定在两者之间，优选将所述的导光板2连同LED灯基板4相吻合的设置在底座3与底座侧翻边6所围成的槽内，还可以在底座侧翻边6的内侧设置卡爪将导光板2固定，或者在导光板2上穿孔，使用螺钉将其固定在底座2上，达到稳固的效果。The light guide plate 2 can be fixed between the lamp cover 1 and the base 3, and the light guide plate 2 is preferably disposed on the base 3 and the base side flange 6 in conformity with the LED lamp substrate 4. In the groove formed, the light guide plate 2 may be fixed on the inner side of the base side flange 6, or the light guide plate 2 may be perforated, and the screw is fixed on the base 2 to achieve a stable effect.
参见图3所示，为了将LED灯基板4与导光板2相固定，在安装有LED灯基板4的导光板一侧边还设置有底边框8，导光板2的正反两面夹在底边框8的两条边之间，LED灯基板4位于底边框8的框内。所述的底边框8优选采用金属框，这样不仅可以起到良好的固定效果，而且可以起到良好的散热作用，有利于延长LED灯的使用寿命。As shown in FIG. 3, in order to fix the LED lamp substrate 4 and the light guide plate 2, a bottom frame 8 is further disposed on the side of the light guide plate on which the LED lamp substrate 4 is mounted, and the front and back sides of the light guide plate 2 are sandwiched at the bottom frame. Between the two sides of the 8 , the LED lamp substrate 4 is located within the frame of the bottom frame 8 . The bottom frame 8 is preferably made of a metal frame, so that not only a good fixing effect but also a good heat dissipation effect can be achieved, which is advantageous for extending the service life of the LED lamp.
为了防止LED灯5直射的光从导光板2的另外一端面射出，而导致能量浪费以及顶部灯光太亮，优选在所述导光板2上与LED灯基板4相对的一侧边贴有反射片9，以便将LED灯的灯光反射回到导光板2内，这样不仅可以防止能源浪费，而且反射片反射的光可以达到设置一组LED灯的效果，增加光照效果的同时降低了成本。In order to prevent the direct light of the LED lamp 5 from being emitted from the other end surface of the light guide plate 2, resulting in waste of energy and too bright top light, it is preferable that a reflective sheet 9 is attached to one side of the light guide plate 2 opposite to the LED lamp substrate 4. In order to reflect the light of the LED lamp back into the light guide plate 2, not only energy waste can be prevented, but also the light reflected by the reflection sheet can achieve the effect of setting a group of LED lamps, thereby increasing the illumination effect and reducing the cost.
为了灯光的均布，在所述导光板2的表面上印刷、雕刻、或者粘贴有非均匀分布的反射点。反射点的非均匀布置是由于靠近LED灯5及反射片的位置光强比较强，可以将反射点设置的稀疏一些，相应的，离LED灯5及反射片较远的位置光强比较弱，可以将反射点设置的稠密一些，从而更好的将光线均布，获得大面积均匀面光源。For the uniform distribution of the lights, non-uniformly distributed reflection points are printed, engraved, or pasted on the surface of the light guide plate 2. The non-uniform arrangement of the reflection points is because the intensity of the position near the LED lamp 5 and the reflection sheet is relatively strong, and the reflection point can be set sparsely. Correspondingly, the light intensity at a position far from the LED lamp 5 and the reflection sheet is relatively weak. The reflection points can be densely arranged to better distribute the light to obtain a large-area uniform surface light source.
本实施例的照明装置，只在导光板的一侧边设置LED灯，节省了成本，在导光板上与LED灯基板相对的一侧边贴有反射片，达到了设置两组LED灯的效果；通过设置灯罩和底座，不仅可以起到保护LED灯以及导光板的作用，而且灯罩可以起到匀光作用，不用专门在导光板正面设置匀光膜，底座可以起到反射作用，不用必须在导光板的背面专门设置反射片，灯罩采用半透明罩，匀光效果更佳。本装置可以应用在冰箱内，为冰箱内部空间进行照明，当然，也可以应用在其他电器设备上进行照明，或者作为广告箱的背光屏使用。In the illumination device of the embodiment, the LED lamp is disposed only on one side of the light guide plate, which saves cost, and a reflective sheet is attached to one side of the light guide plate opposite to the LED lamp substrate, thereby achieving the effect of setting two sets of LED lamps. By setting the lamp cover and the base, not only can the function of protecting the LED lamp and the light guide plate be protected, but also the lamp cover can be used for the uniform light effect, and the uniform light film is not required to be disposed on the front surface of the light guide plate, and the base can play a reflection role, without having to The back side of the light guide plate is specially provided with a reflection sheet, and the lamp cover adopts a translucent cover, and the uniform light effect is better. The device can be used in a refrigerator to illuminate the interior space of the refrigerator. Of course, it can also be applied to other electrical devices for illumination or used as a backlight for the advertising box.
当然，上述说明并非是对本发明的限制，本发明也并不仅限于上述举例，本技术领域的普通技术人员在本发明的实质范围内所做出的变化、改型、添加或替换，也应属于本发明的保护范围。The above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention are also The scope of protection of the present invention.

Claims (10)

  1. 一种照明装置，其特征在于：包括安装一体的灯罩、导光板、以及底座，所述底座一周设置有底座侧翻边，所述灯罩对应设置有与底座侧翻边相扣合的灯罩侧翻边，所述导光板安装在灯罩与底座之间，且导光板的任一侧边安装有LED灯基板，所述LED灯基板上固定有LED灯。A lighting device, comprising: an integrated lamp cover, a light guide plate, and a base, wherein the base is provided with a base side flange at a time, and the lamp cover is correspondingly provided with a lamp cover rollover that is engaged with the base side flange The light guide plate is mounted between the lamp cover and the base, and an LED lamp substrate is mounted on either side of the light guide plate, and an LED lamp is fixed on the LED lamp substrate.
  2. 根据权利要求1所述的照明装置，其特征在于：所述灯罩侧翻边上设置有卡爪，底座侧翻边相应位置处设置有与所述卡爪相扣合的卡槽。The illuminating device according to claim 1, wherein the lamp cover side flange is provided with a claw, and the base side flange is provided at a corresponding position with a card slot that is engaged with the claw.
  3. 根据权利要求2所述的照明装置，其特征在于：所述的导光板相吻合的设置在底座与底座侧翻边所围成的槽内。The illuminating device according to claim 2, wherein the light guide plates are matched in a groove defined by the base and the side flange of the base.
  4. 根据权利要求1所述的照明装置，其特征在于：所述的导光板的背面覆贴有一层反光膜。The illumination device according to claim 1, wherein the back surface of the light guide plate is covered with a reflective film.
  5. 根据权利要求1所述的照明装置，其特征在于：安装有LED灯基板的导光板的一侧边还设置有底边框，导光板的正面和背面夹在底边框的两条边之间，LED灯基板位于底边框的框内。The illuminating device according to claim 1, wherein one side of the light guide plate on which the LED lamp substrate is mounted is further provided with a bottom frame, and the front and back sides of the light guide plate are sandwiched between two sides of the bottom frame, and the LED The lamp substrate is located in the frame of the bottom frame.
  6. 根据权利要求5所述的照明装置，其特征在于：所述的底边框为金属框。The illumination device according to claim 5, wherein said bottom frame is a metal frame.
  7. 根据权利要求1-6任一项权利要求所述的照明装置，其特征在于：在所述导光板上与LED灯基板相对的一侧边贴有反射片。The illumination device according to any one of claims 1 to 6, wherein a reflection sheet is attached to a side of the light guide plate opposite to the LED lamp substrate.
  8. 根据权利要求1-6任一项权利要求所述的照明装置，其特征在于：所述导光板为透明板。A lighting device according to any one of claims 1 to 6, wherein the light guide plate is a transparent plate.
  9. 根据权利要求1-6任一项权利要求所述的照明装置，其特征在于：所述的灯罩为半透明罩。A lighting device according to any one of claims 1 to 6, wherein the lampshade is a translucent cover.
  10. 根据权利要求1-6任一项权利要求所述的照明装置，其特征在于：在所述导光板的表面上印刷、雕刻、或者粘贴有非均匀分布的反射点。A lighting device according to any one of claims 1 to 6, wherein a non-uniformly distributed reflection point is printed, engraved, or pasted on the surface of the light guide plate.
PCT/CN2012/087507 2012-03-19 2012-12-26 Lighting device WO2013139160A1 (en)

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CN103322763A (en) * 2013-06-03 2013-09-25 青岛海尔特种电冰箱有限公司 Refrigerator lighting device and refrigerator
CN105276527A (en) * 2014-06-03 2016-01-27 云光科技股份有限公司 Side-light type luminescence lamp
CN104121754B (en) * 2014-07-31 2016-08-24 贵州航天风华实业有限公司 A kind of LED refrigerator lamp and installation method thereof
CN105757549B (en) * 2016-04-15 2018-12-04 广州市广赛电子科技有限公司 A kind of cupboard lamp

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