CN203671300U - LED module - Google Patents

Abstract

The utility model relates to the field of LED illuminating lamps. An LED module comprises LEDs, a PCB, lenses, a lens face shield and a heat dissipation assembly; the heat dissipation assembly comprises an aluminum heat dissipation frame, a heat conducting fin, connection assembly parts and a plurality of heat dissipation plates, a plurality of heat dissipation plate mounting holes which are arranged in parallel are formed in the aluminum heat dissipation frame, the heat dissipation plates are mounted in the heat dissipation plate mounting holes in the aluminum heat dissipation frame in an inserted mode, the PCB is fixed on the bottom surface of the aluminum heat dissipation frame, and the heat conducting fin is located between the PCB and the heat dissipation plates on the aluminum heat dissipation frame; wire penetrating positions are arranged on the aluminum heat dissipation frame and located between corresponding electrical interfaces and corresponding powering-on interfaces. The LED module has the advantages of being novel in structure, capable of being combined freely, good in waterproofness and suitable for outdoor use.

Description

A kind of LED module

Technical field

The utility model relates to LED field of illuminating lamps.

Background technology

LED illuminating lamp is because the advantage of its energy-conserving and environment-protective is widely used.LED module is most important building block in LED lamp.The maximum deficiency that existing LED module exists is to change, once just cannot adjust the size of its shape and power after product shaping, can only adjust brightness by the brightness regulation module carrying in its circuit, be that brightness cannot significantly increase, need to increase brightness can only be to realize by the quantity of increase LED illuminating lamp, between multiple LED illuminating lamps, separately do not connect, or be electrically connected together by the wire exposing, cannot serve as a unified entirety and use.In addition, on LED market, be all to adopt low-voltage LED at present mostly, along with the maturation of AC LED and high direct voltage LED technology, AC LED and high direct voltage LED technology will be widely used, the difference of its driving voltage pattern of variety classes LED and the difference of LED arrangement mode, just make a different pcb board and different lens outer covers if often change a kind of LED, not only trouble, also will certainly cause the waste of goods, materials and equipments.

Summary of the invention

Goal of the invention of the present utility model is the deficiency existing in order to solve above-mentioned existing LED module, and a kind of novel structure is provided, can independent assortment, and perfect heat-dissipating and heat dispersion can freely be adjusted, and are applicable to the LED module of outdoor use.

In order to realize foregoing invention object, the utility model has adopted following technical scheme:

A kind of LED module, comprise LED, pcb board, lens, lens face shield and radiating subassembly, LED is arranged on pcb board, pcb board is fixed on radiating subassembly, lens are airtight to be arranged on lens face shield, lens face shield is fixed on radiating subassembly, and is provided with water-tight circle between lens face shield and radiating subassembly; Radiating subassembly comprises aluminum heat radiation rack, conducting strip, assembles part and polylith heat sink, aluminum heat radiation rack is provided with multiple heat sink installing holes that are arranged in parallel, heat sink is inserted in the heat sink installing hole on aluminum heat radiation rack, pcb board is fixed on the bottom surface of aluminum heat radiation rack, between the heat sink of conducting strip on pcb board and aluminum heat radiation rack; Assemble the edge that part is fixed on aluminum heat radiation rack top, assemble and on part, be equipped with the electrical interface through IP protective treatment, pcb board is provided with and assembles the electrical interface coupling on part and the energising interface that can be communicated with electrical interface, aluminum heat radiation rack is provided with threading position, and threading bit position is between corresponding electrical interface and energising interface.

As preferably, it is multiple assembling part, and the quantity of threading position and energising interface is with to assemble number of packages flux matched, and at least one threading position is threading via hole, and remaining threading position is to be transparent threading screens groove by impact.

As preferably, aluminum heat radiation rack cross section is square, and the edge on every limit on aluminum heat radiation rack top is equipped with one and assembles part, and assembling part is 4, each all middles in every limit, position that assemble part, and assemble part and aluminum heat radiation rack is connected as a single entity; Aluminum heat radiation rack is provided with 4 threading positions, and pcb board is provided with 4 positions and assembles the electrical interface coupling on part and the energising interface that can be communicated with electrical interface.By having assembled energising Interface realization on part and pcb board on LED module surrounding indwelling expansion edge on aluminum heat radiation rack, realize the Combination conversion of different purposes, different capacity class, to facilitate consumer's multipurpose requirement, can easily multiple LED modules be docked and be combined, simultaneously assembling part and can fix for the installation of LED module in docking position not.

As preferably, aluminum heat radiation rack cross section is square, and the combined effect of multiple modules is best, and four direction can be combined.

As preferably, LED brightness regulation module is set on pcb board, and pcb board is provided with 4 the energising interfaces that all can control LED switch and regulate LED brightness, connects arbitrarily an energising interface on pcb board, all can control switch and the brightness of all LED on pcb board, easy to use; LED and pcb board are connected as a single entity, and to lower Power supply requirement and to dwindle unit volume, have both effectively lowered the requirement to Power supply performance, have compressed again volumetric spaces; IC chip on pcb board is by operating current and the work calories of pulse width modulation control LED, carry out the adjustment of voltage stabilizing and constant current by changing dutycycle, in the time that internal temperature exceedes setting index, automatic reduction electric current guarantees the stable work in work of LED, implement voltage stabilizing by the method that changes dutycycle, effectively lower the fluctuation of voltage, improved LED constant current and driven effect; The hood-shaped shape of lens face is mate with aluminum heat radiation rack bottom surface square, and lens face shield middle part convexes to form cavity volume downwards with respect to edge, and the edge of lens face shield is screwed on the edge of square fixed panel bottom, and lens face shield is installed firmly.

As preferably, the equal rule of edge of 4 sides of lens face shield is provided with air-flow breach; The edge of lens face shield bottom is provided with the mount pad of multiple regularly arranged and downward protrusions, and mount pad and lens face shield are connected as a single entity, and screw passes mount pad and is fixed on aluminum heat radiation rack; On lens face shield, be provided with aluminum heat radiation rack junction the groove that holds water-tight circle, water-tight circle is stuck in groove, and the grade of IP protection has been improved in the inner side of the position of water-tight circle in screw; Lens face shield is provided with 12 lens installing holes, 12 airtight being fitted on lens installing hole of lens, and 12 lens arrangement become 4 curved lenses bands that length is identical, and every curved lenses band is formed by 5 lens arrangement; On pcb board, the quantity of LED and arrangement position mate with lens, each lens directly over a LED is set, 12 LED are arranged in 4 arc LED luminous zones that length is identical, not only illumination effect is good, and is convenient to the replacing of follow-up different voltage LED; Further, air-flow breach quantity, shape and the residing position of 4 sides are all identical, and the edge of every side is at least provided with 2 air-flow breach, and in the time of two LED module docking, two air-flow breach corresponding to position shape have been connected to form fluid space; Assemble the both sides of electrical interface on part and be respectively equipped with connecting hole, assemble on part installation connecting plate is set, screw is fixed in connecting hole through connecting plate is installed, and the installation of being convenient to whole LED module is fixed.

As preferably, aluminum heat radiation rack end face is provided with two heat radiation fixed heads, and two heat radiation fixed heads bottoms are connected as a single entity with aluminum heat radiation rack end face; Heat sink cross section is L-shaped, and heat sink is connected as a single entity and is formed by long slab and short slab, and long slab is through the heat sink installing hole on aluminum heat radiation rack, and short slab is stuck on the aluminum heat radiation rack of heat sink installing hole below, and aluminum heat radiation rack is easy to assembly.

As preferably, in the electrical interface directly at least one threading via hole, electrical connector is set, easy to use.

Adopt a kind of LED module of technique scheme, lens are airtight to be arranged on lens face shield, between lens face shield and radiating subassembly, be provided with water-tight circle, assemble and on part, be equipped with the electrical interface through IP protective treatment, IP barrier propterty is good, IP degree of protection at least reaches 66, is applicable to outdoor use.Radiating subassembly comprises aluminum heat radiation rack, conducting strip, assembles part and polylith heat sink, between the heat sink of conducting strip on pcb board and aluminum heat radiation rack, heat dispersion and heat conductivility are all good, heat sink is inserted in the heat sink installing hole on aluminum heat radiation rack, and it is that heat dispersion can regulate voluntarily that the quantity of heat sink can be selected voluntarily.By having assembled energising Interface realization on part and pcb board on LED module indwelling expansion edge, realize the Combination conversion of different purposes, different capacity class, to facilitate consumer's multipurpose requirement, can easily multiple LED modules be docked and be combined, simultaneously assembling part and can fix for the installation of LED module in docking position not.In sum, the advantage of this LED module is novel structure, can independent assortment, and perfect heat-dissipating, and heat dispersion can select the quantity of heat sink to regulate as required, and good waterproof performance is applicable to outdoor use.

Accompanying drawing explanation

Fig. 1: the schematic perspective view of the utility model embodiment.

Fig. 2: the exploded perspective view of the utility model embodiment.

Fig. 3: the schematic diagram of the radiating subassembly of the utility model embodiment.

Fig. 4: the aluminum heat radiation rack of the utility model embodiment and on assemble the schematic diagram of part.

Fig. 5: the assembling schematic diagram of pcb board and LED in the utility model embodiment.

Fig. 6: lens face shield schematic diagram one in the utility model embodiment.

Fig. 7: lens face shield schematic diagram two in the utility model embodiment.

The specific embodiment

Make a detailed explanation below in conjunction with Fig. 1-7 pair specific embodiment of the present utility model.

A kind of LED module as shown in Fig. 1-7, mainly comprises LED3, pcb board 2, lens 4, lens face shield 6 and radiating subassembly 1.

LED3 is arranged on pcb board 2, and specifically the top one of LED3 is connected on pcb board 2, to lower Power supply requirement and to dwindle unit volume, has both effectively lowered the requirement to Power supply performance, has compressed again volumetric spaces.IC chip 22 on pcb board 2, by operating current and the work calories of pulse width modulation control LED, carries out the adjustment of voltage stabilizing and constant current by changing dutycycle.

Radiating subassembly 1 is mainly by aluminum heat radiation rack 11, conducting strip 14, 4 assemble part 12 and polylith heat sink 13 forms, aluminum heat radiation rack 11 is provided with multiple heat sink installing holes 111 that are arranged in parallel, heat sink 13 is inserted in the heat sink installing hole 111 on aluminum heat radiation rack 11, specifically aluminum heat radiation rack 11 end faces are provided with two heat radiation fixed heads 15, two heat radiation fixed head 15 bottoms and aluminum heat radiation rack 11 end faces are connected as a single entity, two heat radiation fixed heads 15 are along the Central Symmetry setting of aluminum heat radiation rack 11 end faces, the effect of heat radiation fixed head 15 is both can dispel the heat, the installation that can also be used for whole LED module is fixed, heat sink cross section is L-shaped, and heat sink 13 is connected as a single entity and is formed by long slab 131 and short slab 132, and long slab 131 is through the heat sink installing hole 111 on aluminum heat radiation rack 11, and short slab 132 is stuck on the aluminum heat radiation rack 11 of heat sink installing hole 111 belows.Pcb board 2 is fixed on the bottom surface of aluminum heat radiation rack 11, between the heat sink 13 of conducting strip 14 on pcb board 2 and aluminum heat radiation rack 11, the effect of conducting strip 14 except heat conduction also for the position of heat sink 13 is fixed.User can freely select the quantity of heat sink 13 and then regulate voluntarily the performance of heat radiation.

Aluminum heat radiation rack 11 cross sections are square, the edge on every limit on aluminum heat radiation rack 11 tops is equipped with one and assembles part 12, assembling part 12 is 4, each all middles in every limit, position that assemble part 12, and assemble part 12 and be connected as a single entity with aluminum heat radiation rack 11.

Each assembling on part 12 is equipped with the electrical interface 121 through IP protective treatment, and pcb board 2 is provided with 4 positions and mates corresponding energising interface 21 with the electrical interface 121 assembling on part 12, and aluminum heat radiation rack 11 is provided with 4 threading positions.LED brightness regulation module 23 is set on pcb board 2,4 energising interfaces 21 on pcb board 2 are all the energising interfaces that can control LED switch and regulate LED brightness, any energising interface 21 of connecting on a pcb board 2 all can be controlled switch and the brightness of all LED3 on pcb board 2, easy to use.

Aluminum heat radiation rack 11 is provided with 4 threading positions, and threading bit position is between electrical interface 121 and energising interface 21.In 4 threading positions, at least one threading position is threading via hole 1121, the interior electrical connector arranging through IP protective treatment of electrical interface 121 directly at least one threading via hole 1121, electrical interface 121 is rounded, electrical connector is cylindrical, electrical connector is in circular electric interface, dismounting is used very convenient, and electrical connector passes threading via hole 1121 by wire and is connected with the energising interface 21 under it, and the IP protective treatment of electrical connector is in electrical interface 121, to set up water-tight packing ring.Remaining threading position is to be transparent threading screens groove 1122 by impact.In the time of two groups of LED module docking, can adopt the part 12 that assembles at threading via hole 1121 places to dock, remaining assembles part 12 and does not use and therefore do not need perforation as connector, adopting is the structure of transparent threading screens groove 1122 by impact, can effectively improve the grade that dustproof and waterproof performance has improved IP protection, be that the intensity of transparent threading screens groove 1122 is far below the intensity of aluminum heat radiation rack 11 around by impact, suitably impact penetrable, just become threading via hole 1121 through overpenetrated screens groove 1122, in the time that consumer need to adopt multiple LED modules to dock, puncture voluntarily and can use again, rational in infrastructure, easy to use.

The both sides that assemble electrical interface 121 on part 12 are respectively equipped with connecting hole 122, connecting hole 122 is for assembling connecting piece, for example assemble one connecting plate is installed, screw is fixed in connecting hole 122 through connecting plate is installed, and the fixed installation of connecting plate for whole LED module is installed.

On the fixing aluminum heat radiation rack 11 of lens face shield 6, and be provided with water-tight circle 5 between lens face shield 6 and aluminum heat radiation rack 11.Lens face shield 6 shapes are the squares that mate with aluminum heat radiation rack 11 bottom surfaces, lens face shield middle part 61 convexes to form cavity volume downwards with respect to edge, the edge of lens face shield 6 is fixed on by screw 66 on the edge of aluminum heat radiation rack 11 bottoms, specifically the edge of lens face shield 6 bottoms is provided with the mount pad 62 of multiple regularly arranged and downward protrusions, mount pad 62 is connected as a single entity with the edge of lens face shield 6, screw 66 is fixed on aluminum heat radiation rack 11 through mount pad 62, while adjusting LED3 or lens 4, just lens face shield 6 need to be pulled down, therefore the fixing mode of screw 66 is the most applicable, for the fastness that guarantees to install, therefore adopted respective outer side edges screw 66 fixing of mount pad 62, especially but user need to adjust the quantity of heat sink 13 and then adjust when heat dispersion, select the fixed form of screw 66 the most easily dismantle and assemble.On lens face shield 6, be provided with aluminum heat radiation rack 11 junctions the groove 65 that holds water-tight circle, water-tight circle 5 is stuck in groove 65, and the effect that water-tight infiltrates can better be played in the inner side of the position of water-tight circle 5 in screw 66.The equal rule of edge of 4 sides of lens face shield 6 is provided with air-flow breach 63, article 4, air-flow breach 63 quantity on side, shape and residing position are all identical, in the time of two LED module docking, two air-flow breach 63 corresponding to position shape have been connected to form fluid space, when being connected, module and module, between two lens face shields 6, fluid space is used for to cross-ventilation, and the edge of every side is at least provided with 2 air-flow breach, like this LED module connecting place have at least 2 local to fluid space, for product lamp affixed to the ceiling or body seal, more effective.

Lens 4 are airtight to be arranged on lens face shield 6, lens face shield 6 is provided with 12 lens installing holes 64,12 airtight being fitted on lens installing hole 64 of lens 4,12 lens 4 are arranged in 4 curved lenses bands that length is identical, article 4, curved lenses band joins end to end, and every curved lenses band forms by 5 lens arrangement.On pcb board 2, the quantity of LED3 and arrangement position mate with lens 4, each lens 4 directly over a LED3 is set, 12 LED3 are arranged in 4 arc LED luminous zones that length is identical, every arc LED luminous zone is arranged and is formed by 5 LED3.Above-mentioned 12 LED3 are low-voltage direct LED.For realizing the unification of variety classes LED alignment placement, 12 low-voltage direct LED form Designs have been become 4 arc LED luminous zones by the LED module of this patent, so that 4 high-voltage LEDs in equidistant arrange evenly can be for replacing above-mentioned low-voltage direct LED, the low-voltage LED of generally applying by existing market is done on the basis of alignment placement, consider that thereby changing the LED relation of arranging with plus-minus connection wire realizes the layout that is suitable for high direct voltage LED work, in the time that needs are used high direct voltage LED instead, enough with 4 LEDs, use this 4 LEDs in impartial position, all the other are with pin leads or wire UNICOM circuit, for example every pack module 48V/DC power supply, drive 12 3V low-voltage direct LED that single power is 1W, its pass of arranging is 12 strings, be the 54V high-voltage LED of 3W while driving with alternating current 220V or direct current 220V when using single power instead, the quantity of every pack module LED has just become 4, and this 4 LEDs must conspire to create a string, it is suitable that its position also must be placed, otherwise, will affect the attractive in appearance and illumination of layout evenly.

Under different voltage and different capacity class, the width of Copper Foil wire and spacing requirement are different, power hour, and because its load capacity is little, Copper Foil wire can be more carefully; When voltage is low, because of pressure reduction little, wire pitch also can be less, for accomplishing the compatibility of same pcb board to different voltage and different capacity class, the LED module special design of this patent width and the gap of Copper Foil wire, the current-carrying capacity of Copper Foil wire is relevant with the thickness of Copper Foil, conductor width and operating temperature etc., and creep age distance is relevant with the dielectric constant of material with the spacing of wire.It is the conventional pcb board of 1 ounce for copper thickness, when operating temperature is 20 degree, when Copper Foil conductor width is 0.254mm, can bear the electric current of about 1.2A, the electric current that for the benefit of multimode connection in series-parallel realizes the above power of whole lamp 120W bears, its the narrowest width of Copper Foil wire that the LED module of this patent and power supply are connected is all between 2.5mm-10mm, can guarantee to bear the electric current of 4.5A left and right, as for creep age distance, to ordinary electronic circuit, it is less demanding, be greater than 0.2mm enough, the creep age distance of this patent is 0.8mm, enough surpluses are reserved, effectively avoid increasing the current overload causing and effectively having prevented because using AC LED and HVDC LED to cause the load voltage creepage risk producing that raises because of module parallel combination.Above-mentioned special design has realized the compatibility imagination of the shared one group of lens outer cover of the shared a pcb board of variety classes LED, has facilitated production, has also reduced material cost.

Above-mentioned electrical interface 121 is through IP protective treatment, IP protective treatment refers to the processing that meets IP degree of protection, the IP protective treatment mode of electrical interface 121 is a lot, the conventional water-tight packing ring of for example setting up around electrical connector, or at the outer closing cap that electrical interface 121 is sealed that arranges of electrical interface 121, and above-mentioned be the IP protective treatment mode that transparent threading screens groove 1121 structures all belong to electrical interface 121 by impact, adopt the LED module IP degree of protection of technique scheme at least to reach 66.When above-mentioned electrical interface 121 is not used in docking, its opening generally seals up with capping, and the electrical interface not using 121 of especially corresponding threading via hole 1121 need to use capping sealing.The kind of above-mentioned electrical connector is a lot, and conventional is binding post.

Above-described embodiment is only preferably embodiment of this patent, the quantity that for example assembles part can be adjusted, 1,2,3,5,6 can, but the quantity of threading position and energising interface 21 will be mated with the number needs that assembles part 12, when adopting 1 just can only be docked by 2 modules, and cannot use while assembling part 12 and assemble part 12 and realize fixing of module.The shape of aluminum heat radiation rack 11 also can change in addition, and for example cross section is semicircle or regular polygon.

In above-mentioned, 4 threading positions can be all threading via holes 1121, can be partly also threading via holes 1121.The all position preventing dust water-based of LED module in above-described embodiment is all very good, and IP degree of protection is high, meets the condition of outdoor use completely, does not need to increase the shell that keeps off the rain and just can directly use out of doors.Realize on LED module surrounding indwelling expansion edge by the energising interface 21 on the pcb board 2 that assembles part 12 and mate with it of aluminum heat radiation rack 11 bottom surface side edges, realize the Combination conversion of different purposes, different capacity class, to facilitate consumer's multipurpose requirement, can easily multiple LED modules be docked and be combined, simultaneously assembling part and can fix for the installation of LED module in docking position not.

When LED module uses separately, by switch and the brightness regulation of the IC chip controls LED3 on pcb board 2, the light scioptics 4 that LED3 sends penetrate, the heat producing when LED3 work is dissipated by radiating subassembly, IC chip 22 on pcb board 2 is by the operating current of pulse width modulating technology control LED and the work calories of LED, carry out the adjustment of voltage stabilizing and constant current by changing dutycycle, realize voltage stabilizing and constant current by pulse width modulating technology PWM, by IC chip monitoring LED operating temperature, realize temperature protection function, in the time that internal temperature exceedes setting index, automatic reduction electric current guarantees the stable work in work of LED, implement voltage stabilizing by the method that changes dutycycle, effectively lower the fluctuation of voltage, improve LED constant current and driven effect, specifically be integrated with overheat protector device at IC chip internal, even connected triode conducting after its temperature sensor is experienced temperature to exceed a certain value, lower operating current by shunting, thereby realize desuperheat effect, pulse width modulating technology PWM regulates the biasing of transistor base or metal-oxide-semiconductor grid and then realizes transistor or a kind of analog control mode of metal-oxide-semiconductor ON time change according to load change, and this mode can make the output voltage of power supply remain constant in the time of operation conditions change.In the time of two or more sets LED module docking, adjacent LED modules connects at part 12 places that assemble separately by connector, by connector and electrical interface, adjacent LED modules is electrically connected, and gets final product the independent assortment of utility modules.

Claims (9)

1. a LED module, comprise LED, pcb board, lens, lens face shield and radiating subassembly, LED is arranged on pcb board, pcb board is fixed on radiating subassembly, lens are airtight to be arranged on lens face shield, lens face shield is fixed on radiating subassembly, and is provided with water-tight circle between lens face shield and radiating subassembly; It is characterized in that radiating subassembly comprises aluminum heat radiation rack, conducting strip, assembles part and polylith heat sink, aluminum heat radiation rack is provided with multiple heat sink installing holes that are arranged in parallel, heat sink is inserted in the heat sink installing hole on aluminum heat radiation rack, pcb board is fixed on the bottom surface of aluminum heat radiation rack, between the heat sink of conducting strip on pcb board and aluminum heat radiation rack; Assemble the edge that part is fixed on aluminum heat radiation rack top, assemble and on part, be equipped with the electrical interface through IP protective treatment, pcb board is provided with and assembles the electrical interface coupling on part and the energising interface that can be communicated with electrical interface, aluminum heat radiation rack is provided with threading position, and threading bit position is between corresponding electrical interface and energising interface.

2. a kind of LED module according to claim 1, it is multiple it is characterized in that assembling part, the quantity of threading position and energising interface is with to assemble number of packages flux matched, and at least one threading position is threading via hole, and remaining threading position is to be transparent threading screens groove by impact.

3. a kind of LED module according to claim 2, it is characterized in that aluminum heat radiation rack cross section is square, the edge on every limit on aluminum heat radiation rack top is equipped with one and assembles part, assembling part is 4, each all middles in every limit, position that assemble part, and assemble part and aluminum heat radiation rack is connected as a single entity; Aluminum heat radiation rack is provided with 4 threading positions, and pcb board is provided with 4 positions and assembles the electrical interface coupling on part and the energising interface that can be communicated with electrical interface.

4. a kind of LED module according to claim 3, is characterized in that aluminum heat radiation rack cross section is square.

5. according to a kind of LED module described in claim 3 or 4, it is characterized in that, on pcb board, LED brightness regulation module is set, pcb board is provided with 4 the energising interfaces that all can control LED switch and regulate LED brightness; LED and pcb board are connected as a single entity, and the IC chip on pcb board, by operating current and the work calories of pulse width modulation control LED, carries out the adjustment of voltage stabilizing and constant current by changing dutycycle; The hood-shaped shape of lens face is mate with aluminum heat radiation rack bottom surface square, and lens face shield middle part convexes to form cavity volume downwards with respect to edge, and the edge of lens face shield is screwed on the edge of square fixed panel bottom.

6. a kind of LED module according to claim 5, is characterized in that the equal rule of edge of 4 sides of lens face shield is provided with air-flow breach; The edge of lens face shield bottom is provided with the mount pad of multiple regularly arranged and downward protrusions, and mount pad and lens face shield are connected as a single entity, and screw passes mount pad and is fixed on aluminum heat radiation rack; On lens face shield, be provided with aluminum heat radiation rack junction the groove that holds water-tight circle, water-tight circle is stuck in groove, the inner side of the position of water-tight circle in screw; Lens face shield is provided with 12 lens installing holes, 12 airtight being fitted on lens installing hole of lens, and 12 lens arrangement become 4 curved lenses bands that length is identical, and every curved lenses band is formed by 5 lens arrangement; On pcb board, the quantity of LED and arrangement position mate with lens, each lens directly over a LED is set, 12 LED are arranged in 4 arc LED luminous zones that length is identical.

7. a kind of LED module according to claim 6, is characterized in that air-flow breach quantity, shape and the residing position of 4 sides is all identical, and the edge of every side is at least provided with 2 air-flow breach; Assemble the both sides of electrical interface on part and be respectively equipped with connecting hole, assemble on part installation connecting plate is set, screw is fixed in connecting hole through connecting plate is installed.

8. according to a kind of LED module described in claim 1-4 any one, it is characterized in that aluminum heat radiation rack bottom surface is provided with two heat radiation fixed heads, two heat radiation fixed head tops and aluminum heat radiation rack bottom surface are connected as a single entity; Heat sink cross section is L-shaped, and heat sink is connected as a single entity and is formed by long slab and short slab, and long slab is through the heat sink installing hole on aluminum heat radiation rack, and short slab is stuck on the aluminum heat radiation rack of heat sink installing hole below.

9. according to a kind of LED module described in claim 1-4 any one, it is characterized in that, in the electrical interface directly at least one threading via hole, electrical connector is set.

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