CN101813267B - A kind of LED street lamp and LED street lamp display system - Google Patents
A kind of LED street lamp and LED street lamp display system Download PDFInfo
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- CN101813267B CN101813267B CN200910243698.9A CN200910243698A CN101813267B CN 101813267 B CN101813267 B CN 101813267B CN 200910243698 A CN200910243698 A CN 200910243698A CN 101813267 B CN101813267 B CN 101813267B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of LED street lamp and LED street lamp display system, LED street lamp comprises the lamp housing and lamp socket that are fixedly connected with, described lamp housing is provided with heat abstractor, described lamp socket arranges at least one group of LED unit, and arbitrary LED unit comprises a packaging body and at least two mutually stacking LED thin film chips; Described LED thin film chip arranges at least two pairs of P-N junction, and every a pair P-N junction comprises an interface; Each interface is interconnected or stacked; Described lamp socket also comprises a metal alloy pcb board, and each group LED unit is arranged on described metal alloy pcb board; Described lamp housing arranges a light-emitting window, and the light injection sent for making each group of LED unit is outside; Further, transparent silicon glue-line is also provided with between described light-emitting window and each LED unit; LED street lamp display system comprises LED street lamp described at least two and control device.LED street lamp high brightness of the present invention, low-loss and, luminous to concentrate.
Description
Technical field
The present invention relates to a kind of LED light device, particularly, relate to a kind of LED street lamp, and LED street lamp display system
Background technology
In the stage now, pursue healthy in the whole world, environmental protection pressure, in the great situation of energy crisis, semiconductor lighting by universally acknowledged be a kind of important channel of health energy-saving environment protective, expand its range of application just at faster speed.
Because LED street lamp has the features such as life-span length, high light source, radiationless, low-power consumption, LED semiconductor light source is widely used at lighting field in recent years.In prior art, road lighting lamp General Requirements high brightness, luminous concentrated, therefore generally adopt great power LED, otherwise be difficult to meet the demands, but due to the restriction of prior art, the general great power LED adopted, because power ratio is larger, current flow increases simultaneously, light-emitting area also becomes large, and can distribute extremely many heats and cause heating problem, the energy of actual consumption is also more; So, increase while electric energy loss, be difficult to make luminous concentrating.
Therefore, prior art existing defects, needs to improve.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of high brightness, low-loss and, the luminous LED street lamp concentrated, and LED street lamp display system.
Technical scheme of the present invention is as follows: a kind of LED street lamp, comprise the lamp housing and lamp socket that are fixedly connected with, described lamp housing is provided with heat abstractor, wherein, described lamp socket arranges at least one group of LED unit, and arbitrary LED unit comprises a packaging body and at least two mutually stacking LED thin film chips; Described LED thin film chip arranges at least two pairs of P-N junction, and every a pair P-N junction comprises an interface; The each interface of described LED thin film chip is interconnected or stacked; Described lamp socket also comprises a metal alloy pcb board, and each group LED unit is arranged on described metal alloy pcb board; Described lamp housing arranges a light-emitting window, and the light injection sent for making each group of LED unit is outside; Further, transparent silicon glue-line is also provided with between described light-emitting window and each LED unit.
Described LED street lamp, wherein, each interface of described LED thin film chip is identical, and the parallel stacked setting of each LED thin film chip.
Described LED street lamp, wherein, arbitrary LED unit comprises at least three LED thin film chips, and each LED thin film chip has at least two sides to be connected with other LED thin film chip.
Described LED street lamp, wherein, arbitrary LED unit comprises at least three LED thin film chips, and each LED thin film chip is arranged on same plane.
Described LED street lamp, wherein, arbitrary LED unit comprises at least three LED thin film chips, and each LED thin film chip is set to have identical projection on a specific plane.
Described LED street lamp, wherein, also comprise a solar energy equipment, described solar energy equipment comprises solar panel, battery and light-operated switch; Described solar panel is fixedly connected with described lamp socket, and described battery is electrically connected with described lamp socket; Described LED street lamp comprises at least two group LED unit, and each group LED unit is connected with a storage battery.
A kind of LED street lamp display system, wherein, also comprise control device and at least two as above arbitrary as described in LED street lamp; Described control device arranges a data input pin, for receiving control data instruction, generating control signal, being sent to each LED street lamp, for controlling each group of LED unit.
Described LED street lamp display system, wherein, arranges a main control signal input and at least one from control signal input, is connected respectively with described control device between arbitrary group of LED unit, for transmitting main control signal and each from control signal respectively.
Described LED street lamp display system, wherein, also arranges a checkout gear, and described checkout gear is connected with each group of LED unit, for detecting the state of each group of LED unit.
Described LED street lamp display system, wherein, also comprise a display terminal, described display terminal is connected with described control device with described checkout gear respectively, for receiving the state of each group of LED unit, and sends control data instruction.
Adopt such scheme, the present invention is by adopting at least two mutually stacking LED thin film chips, LED thin film chip light-emitting area is little, and luminosity is high, and, at LED thin film chip, at least two pairs of P-N junction are set, each interface of every a pair P-N junction is interconnected or stacked setting, makes the light output amount of LED thin film chip reach more than the twice of the traditional LED thin film chip under same current, thus makes luminosity higher, electric energy loss is low, luminous concentrated; Each LED unit is arranged on metal alloy pcb board simultaneously, and is provided with heat abstractor on lamp housing, the heat energy in LED unit is derived rapidly, make LED thin film chip be not easy to burn out; Further, by arranging a silica gel hyaline layer, because the light transmittance of silica gel hyaline layer can reach more than 90%; under can playing the protective effects such as anticollision, protection against electric shock, protection against the tide to each LED unit, reduce luminous energy loss, and; after hyaline layer is set, lens need not be added again, reduce costs.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1 in the present invention;
Fig. 2 a is embodiment one schematic diagram of embodiment 2 in the present invention;
Fig. 2 b is embodiment two schematic diagram of embodiment 2 in the present invention;
Fig. 2 c is embodiment three schematic diagram of embodiment 2 in the present invention;
Fig. 2 d is embodiment four schematic diagram of embodiment 2 in the present invention;
Fig. 3 is the schematic diagram of embodiment 4 in the present invention;
Fig. 4 is the schematic diagram of embodiment 5 in the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, present embodiments provide a kind of LED street lamp, described LED street lamp comprises the lamp housing 101 and lamp socket 103 that are fixedly connected with, and described LED street lamp is fixed on by each road by lamp stand, for vehicle, the pedestrian that road is walked provides illumination.
Described lamp housing 101 is provided with heat abstractor 102, described heat abstractor 102 can be one or more fin or be one or more louvre, or be heat sink or for fan etc., most preferred is fin or louvre, each fin or louvre can be wholely set with described lamp housing, namely on lamp housing 101, arrange integrated louvre or fin, take up room little, further, good heat dissipation effect.
Described lamp housing 101 is fixedly connected with lamp socket 103, and described being fixedly connected with can be clamping, be spirally connected, weld, bonding etc.
Described lamp socket 103 arranges one or more groups LED unit 104, and arbitrary LED unit 104 comprises a packaging body and mutually stacking two or more LED thin film chips.
Described LED thin film chip arranges two pairs or more P-N junction, and every a pair P-N junction includes a friendship interface; Each interface in each LED thin film chip is interconnected or stacked setting, such as, a stacked top arranging another interface of interface, so, thus makes described LED thin film chip optical output power reach more than two of traditional LED thin film chip, light-emitting area is little, and luminosity is high, and the drive current of each LED thin film chip is identical with the drive current of traditional LED thin film chip, therefore, the LED thin film chip electric energy loss arranging two pairs or more P-N junction is lower.
Described lamp socket 103 also comprises a metal alloy pcb board, and as being aluminium alloy pcb board, each group LED unit is arranged on described metal alloy pcb board; Because metal has good thermal conductivity, the heat therefore respectively organizing LED unit gathering can be derived by described metal alloy pcb board, and, then derive outside by described heat abstractor 102, make radiating effect better, avoid burning out each electronic component.
Described lamp housing 101 arranges a light-emitting window; the light injection outside that described light-emitting window sends for making each group of LED unit; namely each LED unit can be fixed on described lamp socket by described light-emitting window, and described lamp housing plays the protective effects such as anticollision, waterproof, protection against electric shock in described overall LED street lamp.
And, transparent silicon glue-line 105 is also provided with between described light-emitting window and each LED unit 104, transparent silica gel has the excellent characteristic such as protection against the tide, waterproof, resistance to ozone, radiation hardness, weather-resistant, the water white elastomer of low-shrinkage can be solidified at a certain temperature, be elastomer after solidification, there is low modulus, high drawing, high adhesiveness.Light transmittance is high; the features such as weatherability is good, good flowing properties, the overall profound solidification of energy; therefore; also be provided with transparent silicon glue-line 105 between described light-emitting window and each LED unit 104, can playing each LED unit outside the protective effects such as waterproof, protection against electric shock, anticollision, light transmittance can way more than 90%; and; after hyaline layer is set, lens need not be added again, reduce costs.
Embodiment 2
As shown in Figure 2 a, on the basis of above-mentioned each example, in described LED street lamp, each LED unit arranges LED thin film chip 201 and LED thin film chip 202, LED thin film chip 201 is identical with each interface of LED thin film chip 202, i.e. LED thin film chip 201 stacked setting parallel with LED thin film chip 202, and, LED thin film chip 201 and LED thin film chip 202 arrange each interface and are disposed on the same plane, form holistic interface 203, so, the light-emitting area of LED unit can be made to reach minimum, further, luminosity is the brightest.
Such as, described in be disposed on the same plane, be specially, each LED thin film chip heap poststack, between two parallel or substantially parallel planes, the physical centre of each LED thin film chip or geometric center, all in the same plane.
Or, as shown in Figure 2 b, on the basis of each example of embodiment 1, in described LED street lamp, arbitrary LED unit comprises at least three LED thin film chips, such as, comprise LED thin film chip 201, LED thin film chip 202 and LED thin film chip 204, in LED thin film chip 201, LED thin film chip 202 and LED thin film chip 204, in each LED thin film chip, have at least two sides to be connected with other LED thin film chip, the LED thin film chip light-emitting area of more than three so can be made mutually overlapping, form the LED unit that has multiple light-emitting area, lighting angle is wide.
Or, as shown in Figure 2 c, on the basis of each example of embodiment 1, described LED street lamp, wherein, arbitrary LED unit comprises at least three LED thin film chips, such as, comprise LED thin film chip 201, LED thin film chip 202 and LED thin film chip 204, each LED thin film chip is arranged on same plane, can make in some occasion, the thickness of described LED unit reaches minimum.
Or, as shown in Figure 2 d, on the basis of each example of embodiment 1, described LED street lamp, wherein, arbitrary LED unit comprises at least three LED thin film chips, such as, comprise LED thin film chip 201, LED thin film chip 202 and LED thin film chip 204, each LED thin film chip is set to have identical projection on a specific plane, and such as, each LED thin film chip is a straight line arrangement, or, the complete overlapping stacking placement of each LED thin film chip.
Embodiment 3
On the basis of above-mentioned each example, the LED street lamp described in the present embodiment also comprises a solar energy equipment, and described solar energy equipment comprises solar panel, battery and light-operated switch;
It is wherein a kind of that solar cell on described solar panel can adopt in polysilicon solar cell or monocrystaline silicon solar cell or thin-film solar cells or organic solar batteries.Described solar panel is fixedly connected with described lamp socket, and, being fixed on by road by lamp stand, by being fixedly connected with described lamp socket by solar panel, solar panel lamp stand relative to lamp socket can being made firmly to fix.
Described solar panel is connected with described battery, for receiving sunshine, changes one's profession luminous energy into electric energy, and is stored in described battery; Described battery is electrically connected with described lamp socket, pass through electrical transmission, for described LED street lamp provides voltage, and, between described battery and described LED street lamp, light-operated switch is set, for the power according to light or for the instruction according to input, start or disconnect circuit between described battery and described LED street lamp, controlling the lighting hours of LED street lamp.
And, described LED street lamp comprises two groups or more LED unit, each group LED unit is connected with a storage battery, so can control the different fluorescent lifetimes often organizing LED unit, or, can also when solar energy be inadequate, use other energy to power to wherein one or more groups LED unit, such as, the electric energy etc. of civil power, wind energy transformation.
Embodiment 4
As shown in Figure 3, on the basis of above-mentioned each example, present embodiments provide a kind of LED street lamp display system, also comprise control device and two or more as above arbitrary as described in LED street lamp, generally multiple LED street lamp in a certain section in a road can be set to a LED street lamp system.
Described control device for control each LED street lamp luminescence, brighten, dimmed, transformation period etc., described control device arranges a data input pin, by receiving outside control data instruction, and generate control signal according to described control data instruction, again each control signal is sent to each LED street lamp, for controlling each group of LED unit, thus control described LED street lamp luminous, brighten, dimmed, transformation period etc.
Or, in described LED street lamp, between each group LED unit, a main control signal input and one or more from control signal input is set, described main control signal input be respectively connected with described control device respectively from control signal input, described main control signal input is for transmitting control signal, respectively be used for corresponding transmission from control signal input each from control signal, usually, described main control signal with respectively from control signal be identical control signal, each effect from control signal, described main control signal being played to backup, when main control signal breaks down in the process transmitted, respectively may be used for replacing described main control signal from control signal, do not affect the work of each LED street lamp.
Embodiment 5
As shown in Figure 4, on the basis of above-mentioned each example, in LED street lamp display system described in this enforcement, also be provided with a checkout gear, described checkout gear is connected with each group of LED unit, for detecting the state of each group of LED unit, thus the duty of the LED street lamp of its correspondence can be known, Timeliness coverage fault, and keep in repair, do not affect the work of each LED street lamp.
And, in described LED street lamp display system, one display terminal can also be set, described display terminal is connected with described control device with described checkout gear respectively, described checkout gear will detect data send to described display terminal, shown intuitively by described display terminal, conveniently check, and, described display terminal can also be used for sending control data instruction to described control device, such as, can by artificial operation generation control data instruction, or, described control data instruction can be stored in advance, as being stored in memory, recalled by described display terminal again and send to described control device.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (4)
1. a LED street lamp, comprise the lamp housing and lamp socket that are spirally connected, described lamp housing is provided with heat abstractor, it is characterized in that, described lamp socket arranges at least one group of LED unit, and arbitrary LED unit comprises a packaging body and at least two mutually stacking LED thin film chips;
Described LED thin film chip arranges at least two pairs of P-N junction, and every a pair P-N junction comprises an interface, and each interface of described LED thin film chip is interconnected or stacked;
Described lamp socket also comprises a metal alloy pcb board, and each group LED unit is arranged on described metal alloy pcb board;
Described lamp housing arranges a light-emitting window, and the light injection sent for making each group of LED unit is outside; Further, transparent silicon glue-line is also provided with between described light-emitting window and each LED unit;
Arbitrary LED unit comprises at least three LED thin film chips, and each LED thin film chip is set to have identical projection on a specific plane;
Described heat abstractor is at least one fin, and described fin and described lamp housing are wholely set;
Also comprise a solar energy equipment, described solar energy equipment comprises solar panel, battery and light-operated switch; Described solar panel is fixedly connected with described lamp socket, and described battery is electrically connected with described lamp socket; Described light-operated switch is arranged between described battery and described LED street lamp, for the power according to light or for the instruction according to input, starts or disconnects circuit between described battery and described LED street lamp, controlling the lighting hours of LED street lamp;
Described LED street lamp comprises at least two group LED unit, and each group LED unit is connected with a storage battery.
2. a LED street lamp display system, is characterized in that, also comprises control device and at least two LED street lamp as claimed in claim 1;
Described control device arranges a data input pin, for receiving control data instruction, generating control signal, being sent to each LED street lamp, for controlling each group of LED unit;
One main control signal input and at least one from control signal input is set between arbitrary group of LED unit, is connected with described control device respectively, for transmitting main control signal and each from control signal respectively.
3. LED street lamp display system according to claim 2, is characterized in that, also arranges a checkout gear, and described checkout gear is connected with each group of LED unit, for detecting the state of each group of LED unit.
4. LED street lamp display system according to claim 3, it is characterized in that, also comprise a display terminal, described display terminal is connected with described control device with described checkout gear respectively, for receiving the state of each group of LED unit, and send control data instruction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910243698.9A CN101813267B (en) | 2009-12-23 | 2009-12-23 | A kind of LED street lamp and LED street lamp display system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910243698.9A CN101813267B (en) | 2009-12-23 | 2009-12-23 | A kind of LED street lamp and LED street lamp display system |
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| CN101813267A CN101813267A (en) | 2010-08-25 |
| CN101813267B true CN101813267B (en) | 2015-10-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101814260B (en) * | 2009-12-23 | 2014-09-03 | 北京巨数数字技术开发有限公司 | Light and thin LED display screen and LED display system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2932045Y (en) * | 2006-06-06 | 2007-08-08 | 鹤山丽得电子实业有限公司 | LED bulb |
| CN101162081A (en) * | 2007-10-24 | 2008-04-16 | 东莞市科锐德数码光电科技有限公司 | High-power LED street light fitting main casing |
| CN201103857Y (en) * | 2007-11-21 | 2008-08-20 | 江珏 | Integrated LED light source component |
| CN101454910A (en) * | 2006-04-04 | 2009-06-10 | 西尔欧集团 | Semiconductor light source for illuminating a physical space including a 3-dimensional lead frame |
| CN101511144A (en) * | 2009-03-24 | 2009-08-19 | 重庆乔亚电子有限公司 | LED automatic control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201221690Y (en) * | 2008-05-29 | 2009-04-15 | 上海恒烁光电科技有限公司 | LED plane illuminating device |
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- 2009-12-23 CN CN200910243698.9A patent/CN101813267B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101454910A (en) * | 2006-04-04 | 2009-06-10 | 西尔欧集团 | Semiconductor light source for illuminating a physical space including a 3-dimensional lead frame |
| CN2932045Y (en) * | 2006-06-06 | 2007-08-08 | 鹤山丽得电子实业有限公司 | LED bulb |
| CN101162081A (en) * | 2007-10-24 | 2008-04-16 | 东莞市科锐德数码光电科技有限公司 | High-power LED street light fitting main casing |
| CN201103857Y (en) * | 2007-11-21 | 2008-08-20 | 江珏 | Integrated LED light source component |
| CN101511144A (en) * | 2009-03-24 | 2009-08-19 | 重庆乔亚电子有限公司 | LED automatic control system |
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| CN101813267A (en) | 2010-08-25 |
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