A kind of LED circuit board metallic support
Technical field
The utility model relates to a kind of LED wiring board art, particularly relates to a kind of LED circuit board metallic support.
Background technology
LED (LightEmittingDiode), light emitting diode, be a kind of solid-state semiconductor devices, it directly can be converted into light electricity.The heart of LED is the wafer of a semiconductor, and one end of wafer is attached on a support, and one end is negative pole, and the other end connects the positive pole of power supply, makes whole wafer by epoxy encapsulation.Semiconductor wafer is made up of two parts, and a part is P-type semiconductor, and inside it, occupy an leading position in hole, and the other end is N-type semiconductor, at this side mainly electronics.But time these two kinds of semiconductors couple together, between them, just form one " P-N junction ".When electric current acts on this wafer by wire time, electronics will be pushed to P district, and in P district, electronics is with hole-recombination, then will send energy with the form of photon, the principle of LED luminescence that Here it is.And the wavelength of light i.e. the color of light, be determined by the material forming P-N junction.
Practical and the commercialization of high performance lED, makes lighting engineering face a new revolution.The pixel lamp be made up of red, blue, the green three-color LED of multiple super brightness not only can send the continuously adjustable various coloured light of wavelength, but also the white light that brightness can reach tens to one hundred candle light can be sent become lighting source, for incandescent lamp and the LED solid lighting lamp of identical luminosity, the power consumption of the latter only accounts for the former 10%-20%.
The white light LEDs major part of current production is made by covering the faint yellow fluorescent coating of one deck on blue-ray LED, and this yellow phosphor is normally made by being blended in a kind of dense adhesive after the yag crystal mixing cerium is clayed into power.When LED chip sends blue light, some blue light just can be converted to the wider light being mainly yellow of a spectrum by this crystal very efficiently, because gold-tinted can stimulate ruddiness in naked eyes and green glow acceptor, then mix the blue light of LED itself, make it seem just as white light.
Existing LED is generally be directly installed on installing plate, installing plate is generally laminated structure, comprise three layers: the line layer being used for connecting up under the heat dissipating layer being used for dispelling the heat, the insulating barrier being used under heat dissipating layer insulating, insulating barrier, wherein heat dissipating layer is generally aluminium foil or aluminum alloy sheet; Line layer is generally Copper Foil and makes, and is used for doing configuration.LED is arranged on heat dissipating layer, welds with line layer.The installing plate heat dispersion of the LED of this type depends on the thermal conductance index of insulating barrier to a great extent, and the thermal conductance index of insulating barrier is often not high, causes the heat dispersion of whole LED installation strip not good.
Propose a kind of LED hardware bracket in " a kind of LED hardware bracket " (application number 2015103192811) application of the submit of the applicant, comprise the many substrate bands be arranged in parallel; Every bar substrate band comprises the first wire, the second wire and thermal wire, wherein said first wire, the second wire and thermal wire be arranged in parallel, substrate band longitudinal direction compartment of terrain is provided with luminous zone and radiating area, in luminous zone, the first wire is symmetrically arranged inverted "L" shaped, and the thermal wire of radiating area has the arc protruded downwards.The first wherein said wire and the second wire are used for powering to LED, and thermal wire is for exporting to fin by heat.
In actual production and application, we find that contact area is little, therefore its rigidity is inadequate, and contact position easily departs from or disconnects because the first wire, intermetallic contact point between the second wire and thermal wire are little.If contact point departs from or disconnects, then the LED at this place can be caused to be shorted, and now the emission uniformity of whole piece LED is bad; Meanwhile, namely the material of described thermal wire is identical with the material of the second wire with described first wire is all metal, may be used for conduction completely and participates in forming LED circuit board.The existing heat conduction function of above-mentioned thermal wire, also have conduction thus the function of formation wiring board, we are called thermoelectric (al) wire.
Utility model content
For overcoming the deficiencies in the prior art, simultaneously as the improvement of above-mentioned application, the utility model provides a kind of LED circuit board metallic support, comprise many LED circuit board arranged along parallel direction, every bar LED circuit board comprises the power line be arranged in parallel successively, first thermoelectric (al) wire, second thermoelectric (al) wire, also comprise multiple reinforcements of the vertical direction being arranged on described parallel direction, described reinforcement connects described power line, first thermoelectric (al) wire, second thermoelectric (al) wire, described first thermoelectric (al) wire and the part of the second thermoelectric (al) wire between two reinforcements closed on are provided with radiating area and luminous zone.
As the improvement of such scheme, described second thermoelectric (al) wire is other is also provided with an independent current source line abreast, and described independent current source line is connected with described second thermoelectric (al) wire by described reinforcement.
As the improvement of such scheme, the second thermoelectric (al) wire in described luminous zone is symmetrically arranged inverted "L" shaped.
As the improvement of such scheme, the first thermoelectric (al) wire in described luminous zone is symmetrically arranged inverted "L" shaped.
As the improvement of such scheme, the first thermoelectric (al) wire of described radiating area has the arc protruded downwards.
As the improvement of such scheme, the second thermoelectric (al) wire of described radiating area has the arc protruded downwards.
As the improvement of such scheme, the curved bottom shape of described downward protrusion is flat.
Compared with prior art, LED circuit board metallic support disclosed in the utility model is metallic plate integral one-step molding, can disposable formation many LED circuit board, and this wiring board incorporates conduction and heat conduction function; LED is not be connected to wiring board by insulated conductor, but can straight forming in the circuit board; Heat can directly distribute by the radiating area of thermoelectric (al) wire, is also connected to other by modes such as welding and has on the parts of heat sinking function, makes the heat dispersion of wiring board better.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiments of the invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only one embodiment of the present of invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a specific embodiment of the present utility model;
Fig. 2 is a LED circuit board schematic diagram in the specific embodiment in Fig. 1;
In figure: 1-power line; 2-first thermoelectric (al) wire; 3-second thermoelectric (al) wire; 4-independent current source line; 5-reinforcement; 6-luminous zone; 7-radiating area.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
See Fig. 1 and Fig. 2, a kind of LED circuit board metallic support of the utility model, comprising: many LED circuit board arranged along parallel direction; Every bar LED circuit board comprises power line 1, first thermoelectric (al) wire 2, second thermoelectric (al) wire 3 and independent current source line 4 that be arranged in parallel successively, also comprise multiple reinforcements 5 of the vertical direction being arranged on described parallel direction, described reinforcement 5 connects described power line 1, first thermoelectric (al) wire 2, second thermoelectric (al) wire 3 and independent current source line 4, and described first thermoelectric (al) wire 2 and the part of the second thermoelectric (al) wire 3 between two reinforcements closed on are provided with radiating area 7 and luminous zone 6.
Described luminous zone 6 is used for mounted LED lamp, power line 1, first thermoelectric (al) wire 2 and the 3rd thermoelectric (al) wire 3 and reinforcement 5 constitute LED circuit board, by controlling described power line 1, first thermoelectric (al) wire 2 and the 3rd thermoelectric (al) wire 3 and the break-make of reinforcement 5 in some position, the circuit of series connection after in parallel or first in parallel after can forming the first series connection of required multiple LED.
In an embodiment of the present utility model, described second thermoelectric (al) wire 3 is other is also provided with an independent current source line 4 abreast, and described independent current source line 4 is connected with described second thermoelectric (al) wire 3 by described reinforcement 5.When being powered to described LED circuit board by a power-supply controller of electric, if single-ended power, then only the both positive and negative polarity of power-supply controller of electric need be connected to power line 1 and the first thermoelectric (al) wire 2 or the second thermoelectric (al) wire 3; If both end power supplying, then need the electric current of the other end to be caused the one end with power-supply controller of electric by independent current source line 4.
The second thermoelectric (al) wire 3 in described luminous zone 6 and the first thermoelectric (al) wire 2 be arranged in parallel, usual interval is therebetween larger, LED chip can be installed in the future between second thermoelectric (al) wire 3 and the first thermoelectric (al) wire 2 of described luminous zone 6, and LED chip is usually smaller, in order to weld/fitting LED chip better, usually the second thermoelectric (al) wire 3 in described luminous zone 6 is set to symmetrically arranged inverted "L" shaped, namely protrudes a part with closer to the first thermoelectric (al) wire 2.Also can be simultaneously the first thermoelectric (al) wire 2 in described luminous zone 6 for symmetrically arranged inverted "L" shaped, or the first thermoelectric (al) wire 2 in luminous zone 6 and the second thermoelectric (al) wire 3 are symmetrically arranged inverted "L" shaped simultaneously.
First thermoelectric (al) wire 2 of described radiating area 7 and the second thermoelectric (al) wire 3 are used for dispelling the heat, and LED can produce a large amount of heats in the process of luminescence, and heat is distributed by the first thermoelectric (al) wire 2 and the part of the second thermoelectric (al) wire 3 in radiating area 7.And distribute heat in air only by radiating area 7 or inadequate often in other medium of being in contact with it, sometimes need radiating area 7 to be connected on other thermal component, with distribute heat quickly.At this moment, the first thermoelectric (al) wire 2 in radiating area 7 and/or the second thermoelectric (al) wire 3 can be provided with the arc having and protrude downwards, to fit on other described thermal component.Meanwhile, because the material of the first thermoelectric (al) wire 2 and the second thermoelectric (al) wire 3 is metal, its heat conductivility is better, and can be welded direct on other thermal component, and does not need to be fitted on other thermal component by insulating barrier.
In another preferred embodiment of the present utility model, the curved bottom shape of the first thermoelectric (al) wire 2 in above-mentioned radiating area 7 and/or the downward protrusion of the second thermoelectric (al) wire 3 is set to flat.When being set to the curved weld of the downward protrusion of the first thermoelectric (al) wire 2 in the radiating area 7 of flat and/or the second thermoelectric (al) wire 3 or fitting on other thermal component, its contact area is larger, heat-conducting effect is better, can not only be dispelled the heat by other thermal component simultaneously, itself also can directly distribute heat in air or in other medium of being in contact with it.
The structure of described power line 1, first thermoelectric (al) wire 2, second thermoelectric (al) wire 3, independent current source line 4 and reinforcement 5 is metallic plate integral one-step molding, and the mode of processing can be punching press, also can be wheel hub roll-in.The material of metallic plate is metal or its alloy of conduction arbitrarily.
The above is preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.