CN101984284A - Reflective LED grille lamp - Google Patents

Reflective LED grille lamp Download PDF

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Publication number
CN101984284A
CN101984284A CN2010105712964A CN201010571296A CN101984284A CN 101984284 A CN101984284 A CN 101984284A CN 2010105712964 A CN2010105712964 A CN 2010105712964A CN 201010571296 A CN201010571296 A CN 201010571296A CN 101984284 A CN101984284 A CN 101984284A
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CN
China
Prior art keywords
light source
lamp
led light
led
crossbeam
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN2010105712964A
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Chinese (zh)
Inventor
牛占彪
于正国
熊胜华
李华慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI LADER OPTOELECTRONICS TECHNOLOGY Co Ltd
Original Assignee
ANHUI LADER OPTOELECTRONICS TECHNOLOGY Co Ltd
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 ANHUI LADER OPTOELECTRONICS TECHNOLOGY Co Ltd filed Critical ANHUI LADER OPTOELECTRONICS TECHNOLOGY Co Ltd
Priority to CN2010105712964A priority Critical patent/CN101984284A/en
Publication of CN101984284A publication Critical patent/CN101984284A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a reflective LED grille lamp for illumination, which comprises a lamp shell, an LED light source and a driving power supply thereof, wherein the inner side of the lamp shell is provided with a sunken reflective cavity; at least one cross beam for fixing the LED light source is fixed at the outlet end of the reflective cavity of the lamp shell; and the LED light source is fixed on the inner side of the cross beam. Because reflective light emission is adopted and the light source is concealed on the inner side of the cross beam, glare is not produced; and a diffusion plate is not needed, the light loss is low, and the light emitting efficiency is high. In addition, the light emitting efficiency of the lamp can be further improved by effective heat dissipation design. The reflective LED grille lamp has high light efficiency and low power consumption, so the lamp can achieve good energy-saving effect; and meanwhile, the manufacturing cost of the lamp is relatively low.

Description

The reflecting LED Grille lamp
Technical field
The present invention relates to a kind of Grille lamp that is used to throw light on, is a kind of reflecting LED Grille lamp specifically.
Background technology
At present, Grille lamp mainly comprises with the fluorescent lamp being light source and with two kinds of recessed light fixtures of led light source.With the fluorescent lamp is the Grille lamp of light source, generally comprises shaped as frame lamp housing, protecgulum, bonnet and is fixed on light source and electrical equipment on the bonnet, and protecgulum is made by ground glass or cloudy surface light-passing board, and light source adopts fluorescent lamp tube usually.The major defect of this type of light fixture is that light source luminescent is concentrated, and sees that directly light source is dazzling.For overcoming this shortcoming, adopt the LGP (50-70%) of low ground glass (light transmittance 40-60%) of light transmittance or cloudy surface usually, cause light loss comparatively serious like this.
The Grille lamp that with LED is light source mainly contains lateral emitting formula and two kinds of LED Grille lamps of straight-down negative.The LED sideward emitting Grille lamp be a kind of be the recessed light fixture of light source with LED, mainly comprise frame, led light source, LGP, diffusion barrier.Led light source is fixed on scuncheon, owing to can't see light source, therefore dazzle can not occur.But it is low that the shortcoming of this LED Grille lamp is exactly a light extraction efficiency, and the light-emitting area uniformity is poor, dark, the bright situation in edge in the middle of promptly occurring easily on LGP, not only influence attractive in appearance, and area of dissipation is also not enough, causes the LED light decay serious, and there are considerable influence in led light source life-span and luminous efficiency.
Straight-down negative LED Grille lamp, it comprises frame, light source and driving power thereof, back shroud and front shroud.Forward and backward cover plate is fixed on the frame, and light source is a power type LED light source, and back shroud is an aluminium base, front shroud is a diffuser plate, back shroud and front shroud be arranged in parallel, and led light source is fixed on back shroud below, the light that led light source sends from top to bottom direct irradiation on diffuser plate.Adopt the straight-down negative light emitting structures, light extraction efficiency is increased, but diffuser plate and side still can bring bigger light loss, and the light source cost is higher.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art part, a kind of reflecting LED Grille lamp is provided, light extraction efficiency height not only, light loss is little, and the light fixture consumed power reduces, and the manufacturing cost of light fixture is also relatively low.
For achieving the above object, the present invention has adopted following technical scheme: it comprises lamp housing, led light source and driving power thereof, the lamp housing inboard is provided with the reflection cavity that is formed by free reflective surface that concaves, the reflection cavity port of export of lamp housing is fixed with a crossbeam that is used for fixing led light source at least, and led light source is fixed on the crossbeam inboard.Compare with straight-down negative LED Grille lamp, because the light that led light source sends reflects through the optical reflection inner cavity surface, thereby do not need to use diffuser plate, the light extraction efficiency height, light loss is little, compare with straight-down negative LED Grille lamp, the quantity that reaches the same required led light source of brightness reduces, and therefore can reduce light fixture power consumption and light source cost greatly.
In order to reduce the light loss that comes back reflective to cause between crossbeam inboard and the reflection cavity surface, there is the line of demarcation of projection at the position that the lamp housing reflection cavity is corresponding with the crossbeam center line, and the lamp housing reflection cavity cross section of both sides, line of demarcation is set to the free reflective surface of symmetry.
In order to reduce secondary reflection appears in light in reflection cavity probability as far as possible, line of demarcation to the vertical range of crossbeam medial surface is 100mm~120mm, the radius of curvature of curved surface is increased progressively to both sides by the line of demarcation, make and primary event to go out through the curved surface of both sides, line of demarcation, to improve light extraction efficiency by the light that sends on the middle beam.
Since different led light sources, its lighting angle difference, and lighting angle is unfavorable for the raising of light fixture light extraction efficiency too greatly, the too little light fixture reflective surface part that then can cause is bright excessively, dazzle occurs, also can reduce the light fixture light extraction efficiency simultaneously, therefore, the lighting angle of used led light source is the best with 120 °.
A preferred version of the present invention is: the crossbeam inboard is provided with two led light source installed surfaces along its length, and the angle between two led light source installed surfaces is 120 °~170 °, and one group of led light source is housed on each installed surface.The inboard reflective surface of this respective outer side edges lamp housing can further improve light extraction efficiency.
As shown from the above technical solution, the present invention adopts reflective bright dipping, and light source is hidden in the crossbeam inboard, dazzle can not occur, need not to use diffuser plate; By rational optical design, i.e. the free reflecting curved surface in design reflectivity chamber, the light extraction efficiency height of light fixture, light loss is little; Led light source directly is fixed on the crossbeam inboard by aluminium base, and crossbeam is big as radiator and air contact area, and radiating efficiency can improve, and further promotes the light fixture light extraction efficiency; Light fixture adopts led light source quantity few, and the power of consumption is low, low cost of manufacture, and simple in structure, easy for installation.
Description of drawings
Fig. 1 is a upward view of the present invention;
Fig. 2 is along A-A line cutaway view among Fig. 1;
Fig. 3 is a light reflection principle schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1 and Figure 2, the present invention includes lamp housing 1, led light source 33 and 34 and driving power (not drawing among the figure), lamp housing 1 is a square structure, lamp housing 1 inboard is provided with the reflection cavity 2 that is formed by free reflective surface that concaves, reflection cavity 2 surfaces are free reflective surface, reflective surface coating high reflecting rate material can be increased to the light fixture light extraction efficiency more than 0.85.Reflection cavity 2 port of export center fixed of lamp housing have a crossbeam 3, there is the line of demarcation 11 of projection at the position that lamp housing reflection cavity 2 is corresponding with crossbeam 3 center lines, line of demarcation 11 to the vertical range of crossbeam 3 medial surfaces is 100mm~120mm, the cross section of the lamp housing reflection cavity of 11 both sides, line of demarcation is symmetrically arranged free reflective surface 12,13, and the radius of curvature of curved surface 12,13 is increased progressively to both sides by line of demarcation 11.Crossbeam 3 inboards are provided with the led light source installed surface 31,32 of symmetry along its length, angle between two led light source installed surfaces 31,32 is 120 °~170 °, be fixed with one group of led light source 33,34 respectively on two installed surfaces 31,32, every group of led light source is welded on the aluminium base by several led light sources and forms.The lighting angle of led light source is preferable with 120 °.This crossbeam can adopt aluminium section bar to make, and led light source can be installed on the installed surface by aluminium base.The reflective surface 4 of reflection cavity 2 two side ends is inclined to set, and is beneficial to light is reflected outside the lamp housing 1.
Its light reflection principle as shown in Figure 3, the light 5,6 that send at two luminous angles of maximum of led light source 34 reflects away through curved surface 12,13 respectively.
The present invention also can be provided with the crossbeam of many fixed light sources in the lamp housing parallel beneath, and each both sides, crossbeam top correspondence is provided with two free reflective surfaces.

Claims (5)

1. reflecting LED Grille lamp, comprise lamp housing (1), led light source (33,34) and driving power thereof, it is characterized in that: lamp housing (1) inboard is provided with the reflection cavity (2) that is formed by free reflective surface that concaves, reflection cavity (2) port of export of lamp housing (1) is fixed with a crossbeam (3) that is used for fixing led light source at least, and led light source (33,34) is fixed in crossbeam (3) inboard by aluminium base.
2. reflecting LED Grille lamp according to claim 1, it is characterized in that: there is the line of demarcation (11) of projection at the position that lamp housing reflection cavity (2) is corresponding with crossbeam (3) center line, and the cross section of the lamp housing reflection cavity (2) of both sides, line of demarcation (11) is symmetrically arranged free reflective surface (12,13).
3. reflecting LED Grille lamp according to claim 2, it is characterized in that: line of demarcation (11) are 100mm~120mm to the vertical range of crossbeam (3) medial surface, and free reflective surface (12, the 13) radius of curvature of both sides, line of demarcation (11) is increased progressively to both sides by line of demarcation (11).
4. reflecting LED Grille lamp according to claim 1 is characterized in that: the lighting angle of the used led light source of led light source (33,34) is about 120 °.
5. according to claim 1 or 2 or 3 or 4 described reflecting LED Grille lamps, it is characterized in that: crossbeam (3) inboard is provided with two led light source installed surfaces (31,32) along its length, angle between two led light source installed surfaces (31,32) is 120 °~170 °, and each installed surface is provided with the led light source of one group of some.
CN2010105712964A 2010-12-02 2010-12-02 Reflective LED grille lamp Pending CN101984284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105712964A CN101984284A (en) 2010-12-02 2010-12-02 Reflective LED grille lamp

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Application Number Priority Date Filing Date Title
CN2010105712964A CN101984284A (en) 2010-12-02 2010-12-02 Reflective LED grille lamp

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CN101984284A true CN101984284A (en) 2011-03-09

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606913A (en) * 2012-02-17 2012-07-25 漳州市立达信绿色照明有限公司 Large-angle LED (light emitting diode) lamp
CN102748602A (en) * 2012-04-12 2012-10-24 胡文松 Light-emitting diode (LED) bulb structure capable of expanding edge-emitting light
CN102777777A (en) * 2011-05-12 2012-11-14 欧司朗股份有限公司 Illuminating device and illuminating system with same
CN102881810A (en) * 2011-07-13 2013-01-16 李学旻 Light emitting source device
CN103307502A (en) * 2012-03-08 2013-09-18 海洋王照明科技股份有限公司 Lamp
CN103423666A (en) * 2012-04-10 2013-12-04 克利公司 Light fixture
WO2015003608A1 (en) * 2013-07-08 2015-01-15 Li Zhongkai Led lamp
CN104406123A (en) * 2014-11-26 2015-03-11 江门市三泰照明制品有限公司 Indirect lighting lamp
CN105674158A (en) * 2016-03-10 2016-06-15 漳州立达信灯具有限公司 Led down lamp
US9822951B2 (en) 2010-12-06 2017-11-21 Cree, Inc. LED retrofit lens for fluorescent tube
CN107477386A (en) * 2016-06-06 2017-12-15 吕清淼 Heat radiating type lamp socket
US9874333B2 (en) 2013-03-14 2018-01-23 Cree, Inc. Surface ambient wrap light fixture
US10100988B2 (en) 2013-12-16 2018-10-16 Cree, Inc. Linear shelf light fixture with reflectors
US10309627B2 (en) 2012-11-08 2019-06-04 Cree, Inc. Light fixture retrofit kit with integrated light bar
US10584860B2 (en) 2013-03-14 2020-03-10 Ideal Industries, Llc Linear light fixture with interchangeable light engine unit
US10612747B2 (en) 2013-12-16 2020-04-07 Ideal Industries Lighting Llc Linear shelf light fixture with gap filler elements
US10788176B2 (en) 2013-02-08 2020-09-29 Ideal Industries Lighting Llc Modular LED lighting system
US10900653B2 (en) 2013-11-01 2021-01-26 Cree Hong Kong Limited LED mini-linear light engine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1530688A (en) * 2003-03-10 2004-09-22 力捷电脑股份有限公司 Light source modular structure and design method thereof
CN1762061A (en) * 2003-12-05 2006-04-19 三菱电机株式会社 Light emitting device and illumination instrument using the same
CN101782204A (en) * 2010-04-21 2010-07-21 广东昭信光电科技有限公司 LED backlighting structure provided with converted light source and using free-form surface reflector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1530688A (en) * 2003-03-10 2004-09-22 力捷电脑股份有限公司 Light source modular structure and design method thereof
CN1762061A (en) * 2003-12-05 2006-04-19 三菱电机株式会社 Light emitting device and illumination instrument using the same
CN101782204A (en) * 2010-04-21 2010-07-21 广东昭信光电科技有限公司 LED backlighting structure provided with converted light source and using free-form surface reflector

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9822951B2 (en) 2010-12-06 2017-11-21 Cree, Inc. LED retrofit lens for fluorescent tube
CN102777777A (en) * 2011-05-12 2012-11-14 欧司朗股份有限公司 Illuminating device and illuminating system with same
CN102777777B (en) * 2011-05-12 2016-03-30 欧司朗股份有限公司 Lighting device and there is the illuminator of this lighting device
CN102881810B (en) * 2011-07-13 2016-06-22 李学旻 Light emitting source apparatus
CN102881810A (en) * 2011-07-13 2013-01-16 李学旻 Light emitting source device
CN102606913B (en) * 2012-02-17 2014-11-19 立达信绿色照明股份有限公司 Large-angle LED (light emitting diode) lamp
CN102606913A (en) * 2012-02-17 2012-07-25 漳州市立达信绿色照明有限公司 Large-angle LED (light emitting diode) lamp
CN103307502A (en) * 2012-03-08 2013-09-18 海洋王照明科技股份有限公司 Lamp
CN103307502B (en) * 2012-03-08 2016-09-28 海洋王照明科技股份有限公司 Light fixture
CN103423666A (en) * 2012-04-10 2013-12-04 克利公司 Light fixture
CN102748602A (en) * 2012-04-12 2012-10-24 胡文松 Light-emitting diode (LED) bulb structure capable of expanding edge-emitting light
US10309627B2 (en) 2012-11-08 2019-06-04 Cree, Inc. Light fixture retrofit kit with integrated light bar
US11162655B2 (en) 2012-11-08 2021-11-02 Ideal Industries Lighting Llc Modular LED lighting system
US10788176B2 (en) 2013-02-08 2020-09-29 Ideal Industries Lighting Llc Modular LED lighting system
US9874333B2 (en) 2013-03-14 2018-01-23 Cree, Inc. Surface ambient wrap light fixture
US10584860B2 (en) 2013-03-14 2020-03-10 Ideal Industries, Llc Linear light fixture with interchangeable light engine unit
CN105698015A (en) * 2013-07-08 2016-06-22 李忠凯 LED lamp
WO2015003608A1 (en) * 2013-07-08 2015-01-15 Li Zhongkai Led lamp
US10900653B2 (en) 2013-11-01 2021-01-26 Cree Hong Kong Limited LED mini-linear light engine
US10100988B2 (en) 2013-12-16 2018-10-16 Cree, Inc. Linear shelf light fixture with reflectors
US10612747B2 (en) 2013-12-16 2020-04-07 Ideal Industries Lighting Llc Linear shelf light fixture with gap filler elements
CN104406123A (en) * 2014-11-26 2015-03-11 江门市三泰照明制品有限公司 Indirect lighting lamp
CN105674158A (en) * 2016-03-10 2016-06-15 漳州立达信灯具有限公司 Led down lamp
CN107477386A (en) * 2016-06-06 2017-12-15 吕清淼 Heat radiating type lamp socket

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Application publication date: 20110309