[0001] The present invention relates to the field of canopy/flood lighting and more particularly ihe present invention relates to the modular led based canopy/flood and Flood light.
Background of the invention
[0002] In the present era the advances in the development and improvements of the luminous flux of light-emitting devices such as semiconductor, organic or polymer light-emitting diodes (LEDs) have made enormous devices suitable for use in general illumination applications, including architectural, entertainment, and roadway lighting, are some example. As such, LEDs are becoming increasingly competitive with light sources such as incandescent, fluorescent, and high-intensity discharge lamps.LEDs offer a number of advantages and are generally chosen for their ruggedness, long lifetime, high efficiency, low voltage requirements, and the possibility to control the color and intensity of the emitted light independently. The LED provides an efficient long lasting fife span. Solid state lighting sources have the capability to create the same lighting impressions but outweigh the drawbacks associated with the other lighting technologies.
[0003] Furthermore, the LED is used to iiluminate a parking area or structure must be of sturdy construction to withstand wind and other forces and to resist weathering yet be light enough to allow for ease of installation. Additionally, such a luminaire should be aesthetically pleasing. Advances in light emitting diode (LED) technology have resulted in wide adoption of luminaires that incorporate such devices. While LEDs can be used alone to produce light without the need for supplementary optical devices, it has been found that optical modifiers, such as Senses, reflectors, optical waveguides, and combinations thereof, can significantly improve illumination distribution for particular applications.

References have been made to the following patents:
[0004] US8981629 (B2) relates to an LED-based lighting assembly includes a heat sink having at least one pedestal with an upwardly facing, upper planar surface that is raised in a vertical direction relative to an upwardly facing, lower planar surface of the heat sink. A PCB forms an aperture corresponding to the pedestal, includes electrica! conductors on an upper surface thereof, and is attached to the lower planar surface. The upper planar surface extends into the aperture, and one or more LED chips attach directly to the upper planar surface and connect to the conductors such that light emits upwardly. A method of integrating LEDs with a heat sink includes mounting a PCB to a planar surface of the heat sink, mounting one or more LED chips to a raised surface of the heat sink that is not covered by the PCB, and electrically connecting the LED chips to conductors on the PCB.
[0005] US7348604 (B2) relates to a heat dissipation element, a substrate for example a metal core printed circuit board (MCPCB), or FR4 board which is coupled to one or more light-emitting elements and provides a means for operative connection of the light-emitting elements to a source of power. The substrate is positioned such that it is thermally coupled to the heat dissipation element. The light-emitting module further comprises a housing element which Mattingly connects with the heat dissipation element, wherein the housing element may further comprise an optical element integrated therein for manipulation of the light generated by the one or more light-emitting elements.
[0006] US20140126203 (A1) reiafes to an illumination device and a light fixture including the illumination device. The illumination device includes a body formed of a thermally-conductive material that includes a planar heat transfer surface and a fastener that is compatible with a base that couples the body to the light fixture. A substrate formed, at least in part from a dielectric materia! supports an array of light emitting diodes and a plurality of contacts electrically connected to the light emitting diodes. A thermally-conductive planar surface is provided to the dielectric material of the substrate to be placed in thermal communication with the heat transfer surface and conduct heat generated by the light emitting diodes to the body.

[0007] US20150219285 (A1) relates to method for manufacturing LED lighting devices and LED lighting devices, wherein connecting means of metallic solderable material to be electrically connected to the anode and cathode of a LED diode component. The connecting means are at least partly embedded into a plastic material, to provide an electrical connection for said LED diode component and a heat sink for its thermal dissipation.
[0008] US20080298058 (A1) relates to a cove illumination module for use in a plurality of illumination applications wherein a particular type of cove type illumination pattern is desired due to close proximity between the cove illumination module and a to-be-illuminated surface. The cove illumination module comprises a substrate to which a plurality of light-emitting elements is operatively connected. Optionally, the substrate can form a base portion of the cove illumination module. An external housing unit is seemingly mated with the substrate in order to environmentally seal the light-emitting elements. The external housing unit comprises one or more optical elements which can shape the beams of light emitted by the light-emitting elements under operating conditions and generate a desired illumination pattern on a lit surface, thereby providing a cove type illumination pattern.
[0009] CN103968351 relates to a heat dissipation structure of a G9LED lamp comprises a plug and is characterized in that the plug is connected with a heat dissipation base, the heat dissipation base and the plug are integrally formed, a circle of cooling fins are formed on the periphery of the heat dissipation base, and a ventilation groove penetrating through the axial section of the heat dissipation base is formed in a body of the heat dissipation base. The heat dissipation structure has the advantages that the heat dissipation base and the plug are integrally formed, and therefore the heat dissipation area is enlarged; the vertical ventilation groove formed in the plug has the chimney effect, and therefore heat produced by a heat source at the bottom of an LED bulb can be dissipated in time through the ventilation groove, it is ensured that an LED light source is more uniform in heat dissipation and higher in heat dissipation speed, the problem that heat dissipation of the G9LED lamp is not enough due to limitation of the 12-gram weight is solved, the heat dissipation efficiency of the LED

light source is greatly improved, and the service fife and the quality of LLDs are ensured.
References have been made to the following NPL:
[00010] NPL document "Light emitting diodes reliability review" discloses a
methods and device with improved features in the LED canopy/flood light. The NPL document also discuss about the end user reliability and dependency on LED or light emitting diode.
[00011] In the present time if is desirable to have canopy/flood light which provide
illumination for large area with high intensity or high lumen, to provide seamless lighting for a long period of time and provide light in harsh condition also, whenever there is a necessity. Unfortunately, these exits devices/arrangement and methods are somewhat complex and bulky and not reliable for a long period of time.Moreover, with increasing population and heavy demand in lighting there is increasing demand for LEDS. Accordingly, a need exists for an advanced and improved canopy/flood light that can be used for lighting over a large area for a long period of time and can be used in harsh condition. In addition, a need exists to maximize the efficiency and utilization of existing canopy/flood lightwithout intruding the existence structure.
Object of the invention
[00012] Main objects of the present invention is to provide a modular led based
canopy/flood / Flood light. In this concept, Flexibility and Scalability of Power and Lumens are achieved by paralleling different modules as per requirement in a single frame. We can achieve power ratings of 80W to 360W, by paralleling up to 4 modules achieving efficacy of more than 110 Lumens / Watt. The modular based canopy/flood light in the present invention comprise of high powered LED light, lens, heat sinks, driver, frame and SPD.

[00013] Yet another objects of the present invention is to provide a heat sink
which is of aluminum alloy. The aluminum alloy AA6063T6, which have thermal conductivity of approximately 210 W/m.
[00014] Still another objects of the present invention is to provide an
optoelectronics led used with heat sink to dissipation of heat.
[00015] Another object of the present invention is that the heat sink is connected
with the MCPCB without creating any HOTSPOT.
[00016] Still another object of the present invention is to provide IP 68 luminary
design. The IP 68 are compliance by virtue of its Lens fitment.
[00017] Another objects of the present invention is to provide a driver (electronic
control gear) and SPD (Surge Protection Devices) to ensure the total flexibility and integrity of luminary of the canopy/flood light in the present invention.
4. Summary of the invention
[00018] The main aspect of the present invention relates to a modular LED based
canopy/flood light. The canopy/flood/flood light in the present invention comprise of at least one LED, one MCPCB, plurality of lens, one frame, one heat sink, at least one heat sink clamp, one driver, at least one driver clamp, one Surge Protection Devices (SPD), plurality of m5 screw and plurality of m3 screw, at least one thermal tape, at least one electric pluck. The heat sink are made up aluminum alloy. The lens are mounted on the LED, and the LED are mounted on the MCPCB. The MCPCB are placed on the frame and connected to the heat sink. The heat sink transfer the heat generated by the LED to the fluid medium. The driver control the flow of current to the LED and regulate the ON and OFF operation of the canopy/flood light.
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[00019] Another aspect of the present invention is the customized lens is made up
of special polycarbonate material. The LED can be of 4W to 6W power in the present invention.
[00020] Still another aspect of the present invention is the aluminum alloy, which
is used in the heat sink are further comprise of aluminum AA 6063T6, which has good thermal conductivity values of approx 120 W/m. K, respectively. The heat sink is used to dissipate heat, generated by optoelectronics LED. The driver and the SPD in the present invention are fitted on a clamp with heat sink through plurality of screw.
[00021] Another aspect of the present invention is the Surge Protection Devices
(SPD)that prevent the modular led based canopy/flood light from unnatural and potentially dangerous surges and spikes generated in the electrical environment.
[00022] Still another aspect of the present invention is that the plurality of screw is
used fitment of the customized polycarbonate lens and MCPCB and the heat sink in the frame.
[00023] Another aspect of the present invention is the thermal tape which are
placed between MCPCB and the heat sink.
5. Brief description of the drawings:
Fig. 1 depicts the schematic diagram of the modular based canopy/flood light.
Fig. 2depicts the schematic diagram one of the embodiment of the present invention.
6. Description of the preferred embodiment
[00024] The present invention now is described more fully hereinafter with
reference to the accompanying drawings, in which embodiments of the invention are shown. As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely
Page 7 of 14

exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.
[00025] The main embodiment of the present invention relates to a modular LED
based canopy/flood lightlOO. The canopy/flood light in the present invention comprise of at least one LED108, one MCPCB112, plurality of Iens109, one frame111, one heat smk105, at least one heat sink clamp104, one driver102, at least one driver clamp101, one Surge Protection Devices (SPD)103, plurality of m5 screw and plurality of m3 screw107, at least one thermal tape110, at least one electric pluck113. Fig. Ishows the schematic diagram of the modular based canopy/flood light.
[00026] The Iens109 in the present invention are manufactures using
polycarbonate material. These Iens109 have excellent Light Transmittance characteristics and offers high resistance to temperature and weather conditions. These Iens109 increase the efficiency of lighting by increasing the lumens. The Iens109 are mounted on the LED108. The LED108 used in the present invention is of high power rating of 4 W (watt) to 6 W (watt) and it is full compliance to the IP 68. The LED108 then mounted on the heat sink105. The thermal tape110which are placed between MCPCB112and the heat sink105. The thermal tape110 affect the die temperature and give a long life span of the LED108. The frame111 is attached to the MCPCB112 and the heat sink105. The LED108 and the Iens109 are mounted over the MCPCB112 with plurality of screw107. The screw107 used in the present invention may be M3 screw or M5 screw.
The heat sink 105co!iects the heat from the MCPCB 112and transfer the heat to the fluid medium. The fluid medium is such as air. The heat sink105 is attached with the heat sink clamp 104 and attached with the frame111. The driver 102 and the SPD in the present invention are fitted on a clamp with heat sink 105through plurality of
Page 8 of 14

screw. The external Power source deliver current to the driver 102 through the electric wires and suitable piug.
[00027] According to another embodiment of the present invention the driver102,
control the flow of current to the LED 108and regulate the ON and OFF operation of the canopy/flood light. The driver 102 or electronic control gear keep the pace of the required lumens from the canopy/flood light. The driveti02 is exposed to the natural air which facilitate the heat dissipation from the driver102. The heat dissipation keeps the driver cooi and affect the life of the driver102. The driver102 is fixed on the heat sink105 by using driver clamped. The driver clamped is fixed with the driver!02 by using plurality of screwl07.
[00028] Fig. 2 depicts the schematic diagram of the heat sink 105present in one
embodiment of the present invention. The heat sink 105are made up aluminum alloy. AA 6063 T6 is used, with good thermal conductivity value 210 W/m. K. The heat sink105 are connected to the frame 111 and the SPD103. The heat sinkclamped104 used to attach the heat sink105to the frame111 and the MCPCB112. Heat sinks105are used with high-power optoelectronics such as light emitting diodes (LEDs), where the heat dissipation ability of the component itself is in-sufficient to moderate its temperature. The heat sink 105acts as a passive heat exchanger that transfers the heat generated high Power LEDs108 to a fluid medium, e.g. air where it is dissipated away from the LEDs108, thereby allowing regulation of the LEDs108 temperature at optimal levels. The heat sink 105has been designed to maximize its surface area in contact with the cooling medium surrounding it, such as the air. Air velocity, choice of material, protrusion design and surface treatment are factors that has been taken into consideration while designing, which affect the performance of a heat sink105. Heat sink105 attachment methods to MCPCB112 via thermal tape have also been taken into consideration and optimized as they affect the die temperature of high power LEDs108 which ultimately affect its life. The heat sink105 is treated with environmental friendly chemical process called Alluding (An up-gradation on Anodizing) which maintains its shining and makes it weather resistant. Thermal conductivity is also improved by this process and LEDs 108operate at much lower junction temperature increasing over all reliability. After alluding the heat sink105 is subjected to the operation of drilling, tapping and surface preparation by
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CNC machines. Appropriate Surface finish ensures proper fitment of MCPCB112 with heatsink105 without any possibility of generating any HOT SPOT formations. Heat dissipation is very good as the temperature coefficient of MCPCB112 and Aluminum extrusions is almost the same. This also ensures proper thermal dissipation, as there is negligible thermal resistance between the two surfaces which provides facility to LEDs108to operate at much lower junction temperature, result in high reliability and very low Lumen depreciation.
[00029] Another embodiment of the present invention is the Surge Protection
Devices (SPD)103 that prevent the modular led based canopy/flood lightlOO from potentially dangerous Surges and Spikes generated in the Electrical environment. Surge Protection Devices103 are fitted on the clamp, near the heat sink105, ensuring total Flexibility and Integrity of Luminary of the modular led based canopy/flood lightlOO. Moreover since SPD 103 is mounted in close proximity by virtue of its flexible design to driver102, its effectiveness and protection level is enhanced many folds, ensuring very high reliability over the years.
[00030] Still another embodiment of the present invention is the multiple uses of
modular LED based canopy/flood lightlOO is for flexibility and scalability of Power rating / lumen rating of the Luminary, as per requirement. The single module of LED based canopy/flood lightlOO is fabricated. Multiple fabricated modules of LED based canopy/flood Iight100are then paralleled in the same frame as per requirement to get higher lumens along with the matching driver/control gear102, are put in parallel in the designated Frame 111to achieve the required output of the luminary. External (SPD) Surge Protection Device103, if required can also be put additionally on the same framel 11, which has provision for it. For examples:
Suppose we make a Standard module of Power rating of 80W +/- 10%, means its rating can be tuned between 72W and 88W. In case we want to make luminary of 80W, then we shall be using only 1 fabricated module of LED based canopy/flood lightlOO along with the matching driver/control gear102 and put them in a framel 11 to make a luminary.
Similarly, if we want to make a luminary of 150VV, we shall be using two nos. of fabricated modular LED based canopy/flood lightlOO along with two nos. of matching
Page 10 of 14

drivers /Control gear102to make a Luminary. Electrical Input of these drivers102shall be made parallel and connected to the Input Power Source. If required, a Common External Surge Protection Device may be used for both the Modules. In that case, after making electrical inputs of both the driver!02gear parallel, the same should be connected ai the output of External Surge Protection Device, While Input of Surge Protection device shall be connected to Input Power Source.
Similarly, if we want to make a luminary of 350W, then we shall be using four nos. of fabricated modular LED based canopy/flood lightlOO along with four nos. of matching drivers /Control gear!02 to make a Luminary. Electrical input of these drivers102 shall be made parallel and connected to the Input Power Source. As in the case above if required, a common External Surge Protection Device may be used for all the four Modules. In that case, after making electrical inputs of all the four drivers102gear parallel, the same should be connected at the output of External Surge Protection Device, While Input of Surge Protection device shall be connected to Input Power Source.
[00031] While exemplary embodiments are described above, it is not intended
that these embodiments describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention. Additionally, the features of various implementing embodiments may be combined to form further embodiments of the invention

Claim

A Modular LED based Canopy/flood Light comprising:
At least one LED, one MCPCB, plurality of lens, one frame, one heat sink, at least one heat sink clamp, one driver, at least one driver clamp, one Surge Protection Devices (SPD), plurality of m5 screw and plurality of m3 screw, at least one thermal tape, at least one set of connecting wires , wherein said heat sink are made up aluminum alloy AA6063T6
The said lens are mounted on said LED, and said LED are mounted on said MCPCB, and said MCPCB are placed on the frame and connected to the heat sink, and said heat sink transfer the heat generated by the LED to the fluid medium, and said driver control the flow of current to the LED and regulate the ON and OFF operation of the canopy/flood light.
The Modular LED based canopy/flood Light according to claim 1, wherein said lens are made up of polycarbonate material.
The Modular LED based canopy/flood Light according to claim 1, wherein said LED are of 4W to 6W power.
The Modular LED based canopy/flood Light according to claim 1, wherein said aluminum alloy AA6063T6
The Modular LED based canopy/flood Light according to claim 1, wherein said Surge Protection Devices prevent the LED from potentially dangerous electrical surges and spikes.
The Modular LED based canopy/flood Light according to claim 1, wherein said plurality of screw is used fitment of said lens and MCPCB and said heat sink in said frame.

The Modular LED based canopy/flood Light according to claim 1, wherein said heat sink used optoelectronics LED for heat dissipation.
The Modular LED based canopy/flood Light according to claim 1, wherein said driver and said SPD are fitted on a clamp near the said heat sink.
The Modular LED based canopy/flood Light according to claim 1, wherein said thermai tape are placed between MCPCB and said heat sink.