Universal high-power LED lighting module

Abstract

The utility model relates to a kind of general high-power LED lighting module, the module includes phase-change radiator, light source assembly and cable, light source assembly is fixed on the light source fixed plate of phase-change radiator, cable is connected with the light source in light source assembly;The phase-change heat conduction cavity of phase-change radiator is blocked by light source fixed plate in one end, and is blocked by upper cover in other end;Phase-change radiator's right side of guide body has cable channel;As the heat bridge of cable channel outside enclosure contour, water outlet is formed by structural dislocation with light source fixed plate.The utility model can prevent cable channel ponding, overall structure is simple, easy to assemble, and low in cost.

Description

Technical Field

[0001] This utility model belongs to the field of LED lighting and relates to a general-purpose high-power LED lighting module. Background Technology

[0002] A typical lighting module usually consists of a heat sink, light source, lens assembly, and cables. The main areas requiring protection are the cable exit point on the back of the module and the lens assembly mounting area on the front. When the module is used exposed or the matching lamp housing is not a sealed structure, the sealing ring at the cable exit point on the back of the module will be directly exposed to sun and rain. After a few years, it will age, causing rainwater and snowmelt to flow from the cable exit point on the back into the light source on the front of the module, leading to lamp failure.

[0003] The currently used general-purpose LED lighting module (application number: 2024228725928; application date: 2024.11.25) uses a waterproof design with a sealed component at the rear cable inlet, achieving an IP67 protection rating. The waterproof screw sealing position on the back of the module adopts a recessed design, and a convenient baffle structure is added above the waterproof screw sealing position to extend the service life of the LED lighting module. This sealing method uses many accessories, has a complex structure, involves many machining processes, and is inconvenient to assemble.

[0004] Furthermore, current replaceable LED lighting modules used on roads are limited by insufficient heat dissipation devices for centralized heat-generating components, and the low temperature resistance of polymer-based light-distributing devices results in all such modules being low-power products below 60W. Moreover, the light sources they employ are mostly multiple SMD chips, arranged very dispersedly, causing problems with light distribution, such as multiple ghosting images on the road and excessive light spill. For streetlights with polymer-based light-distributing devices, prolonged use in road scenarios can also lead to yellowing of components and low ground illumination, directly affecting road safety. For high-power applications, multiple modules need to be spliced ​​together, resulting in larger, heavier lamps that are inconvenient to install and maintain. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a general-purpose high-power LED lighting module, which has a simple structure, is easy to assemble, and has low cost.

[0006] To solve the above-mentioned technical problems, the general-purpose high-power LED lighting module of this utility model includes a phase change heat sink, a light source assembly, and a cable. The light source assembly is mounted and fixed on the light source fixing plate of the phase change heat sink, and the cable is connected to the light source in the light source assembly. The feature is that one end of the phase change heat conduction cavity of the phase change heat sink is blocked by the light source fixing plate, and the other end is blocked by the upper cover plate. The right side of the heat dissipation body of the phase change heat sink has a cable channel. The thermal bridge, which serves as the outer enclosure of the cable channel, forms a drain outlet with the light source fixing plate through structural misalignment.

[0007] The thermal bridge is arc-shaped.

[0008] The heat dissipation fins are arranged vertically on the left and right sides of the heat dissipation body; microgrooves are provided on the heat-absorbing and heat-dissipating surface of the phase change heat conduction cavity sealed by the light source fixing plate; there is a filling port on the upper cover plate, which is sealed by sealing screws and sealing rubber rings; the phase change heat conduction cavity is filled with phase change working fluid.

[0009] The front and rear sides of the guide body have figure-eight support feet that are integrally connected to the guide body.

[0010] The heat sink fins are provided with multiple C-shaped pillars. Some of the C-shaped pillars are used to fix the light source components, and the other part of the C-shaped pillars are used to connect the LED lighting module and the lamp housing.

[0011] The light source assembly includes a light source, a lens, a lens gasket, and a protective pressure frame; the lens covers the light source, and its edge is embedded in the sealing groove inside the lens gasket; the protective pressure frame is connected to the light source fixing plate and the phase change heat sink by screws and is fastened to the surface of the light source fixing plate and presses the lens gasket.

[0012] The light source is a single COB point light source, which is connected and fixed to the light source fixing plate, and a phase change interface material is provided between the two.

[0013] The lens is a glass lens.

[0014] The cable is an electrical connection cable, one end of which passes through the cable channel and is threaded to the light source fixing plate and electrically connected to the light source; the seal at the junction of the cable and the cable hole on the light source fixing plate is achieved by the compression deformation of the cable rubber ring nested therein.

[0015] The LED lighting module has an overall length of 215-300mm and a power range of 100W-150W.

[0016] Beneficial effects:

[0017] 1. As a thermal bridge on the outer enclosure of the cable channel, it forms a drainage outlet by being misaligned with the light source fixing plate structure, which can prevent water accumulation in the cable channel. The overall structure of the module is simple, easy to assemble, and low in cost.

[0018] 2. The front and rear sides of the heat dissipation body have figure-eight feet that are integrally connected to the heat dissipation body, which is beneficial for heat dissipation.

[0019] 3. The heat sink fins are equipped with multiple C-shaped pillars for fixing the light source components and connecting the LED lighting module to the lamp housing. They are suitable for self-tapping screws and do not require separate drilling and tapping.

[0020] 4. Using a single COB light source can avoid the problem of multiple ghost images caused by multiple light source modules, reduce the difficulty of light distribution design of lighting modules and reduce spillage light, thereby improving the illuminance of the road surface under the same conditions.

[0021] 5. The phase change interface material and heat sink with phase change heat conduction cavity adopted solve the problem of heat extraction and heat dissipation of a single COB light source, improve the power value of a single module, reduce the need for splicing, and avoid the problems of large lamp size, heavy weight, and inconvenient installation and maintenance.

[0022] 6. The use of glass lenses improves the light transmittance and weather resistance of the lighting module, avoids discoloration of optical components caused by long-term use, and increases the illuminance of the road surface. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of an existing general-purpose LED lighting module structure.

[0024] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 3 This is an exploded view of this utility model.

[0026] Figure 4 This is a schematic diagram of the forward structure of a phase change heat sink.

[0027] Figure 5 This is a schematic diagram of the reverse structure of a phase change heat sink.

[0028] In the diagram: 1. Phase change heat sink; 11. Heat conductor; 111. Figure-eight support; 112. Cable channel; 113. Thermal bridge; 12. Light source mounting plate; 121. Light source mounting hole; 122. Through hole; 123. Cable hole; 13. Top cover plate; 131. Sealing screw; 14. Heat dissipation fins; 141. C-shaped column; 15. Drain outlet; 2. Light source assembly; 21. Light source; 22. Lens; 23. Lens rubber ring; 24. Protective pressure frame; 241. Countersunk hole; 25. Light source screw; 26. Phase change interface material; 27. Screw; 3. Cable; 31. Cable rubber ring. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] like Figure 2 As shown, the general-purpose high-power LED lighting module of this utility model includes a phase change heat sink 1, a light source assembly 2, and a cable 3. The light source assembly 2 is mounted and fixed on the light source fixing plate 12 of the phase change heat sink 1, and the cable 3 is connected to the light source in the light source assembly 2.

[0031] like Figure 4 , 5 As shown, the phase change heat sink 1 includes a heat dissipation body 11, a light source fixing plate 12, a top cover plate 13, and heat dissipation fins 14. The heat dissipation body 11 has a circular phase change heat conduction cavity in the middle, and figure-eight supports 111 integrally connected to the heat dissipation body 11 on the front and rear sides. The figure-eight supports 111 are a structure required by the manufacturing process and are beneficial for heat dissipation. The left and right sides of the heat dissipation body 11 have vertically arranged heat dissipation fins 14. The right side of the heat dissipation body 11 has a cable channel 112. The left side of the heat dissipation body 11 has a cable channel 112. The heat dissipation fins 14 on the side are integrally connected to the heat dissipation body 11. Part of the heat dissipation fins 14 on the right side of the heat dissipation body 11 are integrally connected to the heat dissipation body 11. Part of the heat dissipation fins 14 are integrally connected to the thermal bridge 113, which serves as the outer enclosure outline of the cable channel 112. One end of the phase change heat conduction cavity is sealed by the light source fixing plate 12, and the other end is sealed by the upper cover plate 13. The upper cover plate 13 has a filling port, which is sealed by a sealing screw 131 and a sealing ring. The phase change heat conduction cavity is filled with a phase change working fluid.

[0032] The light source fixing plate 12 has microgrooves on the heat dissipation surface of the phase change heat conduction cavity, and a light source fixing hole 121 is provided on the other side; a through hole 122 and a cable hole 123 are provided in a position away from the heat dissipation surface; the position of the cable hole 123 corresponds to the cable channel 112; the thermal bridge 113 is arc-shaped, and forms a drain outlet 15 with the light source fixing plate 12 through structural misalignment, which can prevent water from accumulating in the cable channel 112.

[0033] The heat dissipation fins 14 are provided with multiple C-shaped posts 141. Some of the C-shaped posts 141 are positioned corresponding to the through holes 122, while others are positioned corresponding to the external lamp housing fixing structure. These posts are used for fixing the light source assembly 2 and connecting the LED lighting module to the lamp housing. Self-tapping screws are suitable, eliminating the need for separate drilling and tapping.

[0034] like Figure 3As shown, the light source assembly 2 includes a light source 21, a lens 22, a lens rubber ring 23, and a protective pressure frame 24. The light source 21 is a single COB point light source, which is connected and fixed to the light source fixing plate 12 by a light source screw 25 and a light source fixing hole 121. A phase change interface material 26 is provided between the COB point light source and the light source fixing plate 12. When the light source 21 is ignited and generates heat, the phase change interface material 26 changes from a solid phase to a liquid phase, filling the gap between the light source 21 and the light source fixing plate 12, which can reduce the contact thermal resistance and enhance the heat collection capacity. The lens 22 is a glass lens, which covers the light source 21, and its edge is embedded in the sealing groove inside the lens rubber ring 23. The protective pressure frame 24 presses the lens rubber ring 23, and the screw 27 passes through the countersunk hole 241 and the through hole 122 on the protective pressure frame 24 and is threaded to the C-shaped post 141, thus fastening the protective pressure frame 24 to the surface of the light source fixing plate 12.

[0035] The cable 3 is an electrical connection wire, one end of which passes through the cable channel 112 and is threaded into the cable hole 123, and is electrically connected to the light source 21; the seal at the junction of the cable 3 and the cable hole 123 is achieved by the compression deformation of the cable rubber ring 31 nested therein. The general-purpose high-power LED lighting module of this utility model has an overall length of 215-300mm and a power range of 100W-150W.

Claims

1. A general-purpose high-power LED lighting module, comprising a phase-change heat sink (1), a light source assembly (2), and a cable (3), wherein the light source assembly is mounted and fixed on a light source fixing plate (12) of the phase-change heat sink, and the cable is connected to a light source (21) in the light source assembly; characterized in that One end of the phase change heat conduction cavity of the phase change heat sink is sealed by the light source fixing plate, and the other end is sealed by the upper cover plate; the right side of the heat conduction body of the phase change heat sink has a cable channel (112); the thermal bridge (113) that serves as the outer enclosure outline of the cable channel and the light source fixing plate form a water outlet (15) through structural misalignment.

2. The general-purpose high-power LED lighting module according to claim 1, characterized in that... The thermal bridge is arc-shaped.

3. The universal high-power LED lighting module according to claim 1, characterized in that... The heat dissipation fins are arranged vertically on the left and right sides of the heat dissipation body; the heat dissipation surface of the phase change heat conduction cavity sealed by the light source fixing plate is provided with micro grooves; there is a filling port on the upper cover plate, which is sealed by a sealing screw (131) and a sealing ring (132); the phase change heat conduction cavity is filled with a phase change working fluid.

4. The universal high-power LED lighting module according to claim 1, characterized in that... The front and rear sides of the guide body have figure-eight support legs (111) that are integrally connected to the guide body.

5. The universal high-power LED lighting module according to claim 3, characterized in that... The heat dissipation fins are provided with multiple C-shaped pillars (141), some of which are used to fix the light source assembly, and others are used to connect the LED lighting module to the lamp housing.

6. The universal high-power LED lighting module according to claim 1, characterized in that... The light source assembly includes a light source (21), a lens (22), a lens rubber ring (23), and a protective pressure frame (24); the lens covers the light source, and its edge is embedded in the sealing groove inside the lens rubber ring; the protective pressure frame is connected to the light source fixing plate and the phase change heat sink by screws and is fastened to the surface of the light source fixing plate and presses the lens rubber ring.

7. The universal high-power LED lighting module according to claim 6, characterized in that... The light source is a single COB point light source, which is connected and fixed on the light source fixing plate, and a phase change interface material (26) is provided between the two.

8. The universal high-power LED lighting module according to claim 6, characterized in that... The lens is a glass lens.

9. The universal high-power LED lighting module according to claim 1, characterized in that... The cable is an electrical connection cable, one end of which passes through the cable channel and is threaded to the light source fixing plate and electrically connected to the light source; the seal at the junction of the cable and the cable hole on the light source fixing plate is achieved by the compression deformation of the cable rubber ring nested therein.

10. The general-purpose high-power LED lighting module according to claim 1, characterized in that... The module has an overall length of 215-300mm and a power range of 100W-150W.

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