Integrated inclination angle directional LED light source module

Abstract

The utility model discloses an integrated inclination angle directional LED light source module which comprises a heat conduction base body, a plurality of inclination angle installation tables are arranged on the heat conduction base body in parallel, and preset inclination angles are formed between the installation faces of the inclination angle installation tables and the installation reference face. The substrate assembly comprises a plurality of aluminum substrates and flexible conductive connecting pieces, each aluminum substrate is correspondingly and fixedly connected to the mounting surface of one dip angle mounting table, and the flexible conductive connecting pieces are in bridge connection with the adjacent aluminum substrates to form conductive connecting paths; the light source assembly is composed of a plurality of light-emitting devices installed on the aluminum substrate. The contour of the inner surface of the multi-folding-surface cover plate is attached to the contour of the periphery of the heat conduction base body and the contour of the periphery of the substrate assembly, and a lens is formed on the multi-folding-surface cover plate; and the fixing assembly coats the peripheries of the heat-conducting substrate and the multi-folding-surface cover plate and tightly installs the heat-conducting substrate and the multi-folding-surface cover plate. The light source module fixes the light source assembly through the mounting table with the preset inclination angle, light beam projection in the unified direction can be achieved after leaving a factory, an exposed adjustable structure is avoided, and it is ensured that the appearance of a lamp body is flat and concise.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting technology, and in particular to an integrated tilt-oriented LED light source module. Background Technology

[0002] In public lighting projects, especially for facilities such as municipal streetlights and landscape garden lights, regional installation standards often impose strict requirements on the overall appearance of the lighting fixtures and the installation and fixing methods to ensure the safety and aesthetics of municipal facilities.

[0003] Traditional LED lighting fixtures often use planar substrates to mount the light source, resulting in a diffused light distribution that makes precise directional lighting difficult. In public lighting areas (such as sports fields and roads), traditional fixtures installed at the edges of these areas typically require mechanical structures such as hinges or rotating arms on the back or side of the lamp body to adjust the direction of illumination by manually adjusting the lamp head angle. While this method achieves directional lighting, it is aesthetically unappealing: the exposed adjustment mechanism disrupts the streamlined design of the lamp body, is prone to dust and corrosion accumulation, and does not meet the stringent installation standards of some areas; furthermore, frequent adjustments can cause the hinges to loosen, potentially leading to lamp head swaying or even detachment in strong winds, posing a safety hazard. Utility Model Content

[0004] In view of the shortcomings and deficiencies of the existing technology, this utility model aims to provide an integrated tilt-oriented LED light source module, which avoids the irreconcilable contradiction between the existing "directional lighting function requirements" and the "mandatory requirements of the installation standard for the non-adjustability of the lamp body and the integrity of the appearance".

[0005] The specific technical solution of this utility model is as follows:

[0006] This utility model provides an integrated tilt-oriented LED light source module, comprising:

[0007] A heat-conducting substrate has a mounting reference surface, on which multiple tilt mounting platforms are arranged in parallel. The mounting surfaces of the tilt mounting platforms form a preset tilt angle with the mounting reference surface. The mounting surfaces of each tilt mounting platform have the same tilt direction and tilt angle value.

[0008] The substrate assembly includes multiple aluminum substrates and flexible conductive connectors, each of the aluminum substrates being fixed to the mounting surface of one of the tilting mounting stages, and the flexible conductive connectors bridging adjacent aluminum substrates to form a conductive connection path.

[0009] The light source assembly consists of multiple light-emitting devices mounted on the aluminum substrate;

[0010] A multi-faceted cover plate, the inner surface contour of which fits the outer peripheral contour of the thermally conductive substrate and the substrate assembly in the assembled state, and a lens is formed corresponding to the light-emitting surface of each light-emitting device; and

[0011] A fixing component is used to cover the outer periphery of the thermally conductive substrate and the multi-faceted cover plate and to securely install the two together.

[0012] In some preferred technical solutions, the plurality of tilting mounting platforms are wedge-shaped block structures arranged parallel to each other along the length direction, width direction or diagonal direction of the mounting reference surface, and the inclined surface of the wedge-shaped block structure constitutes the mounting surface; the plurality of light-emitting devices are arranged in a matrix array on each aluminum substrate, and the flexible conductive connectors are disposed away from the light-emitting devices.

[0013] In a preferred embodiment, the tilting mounting platform is integrally cast onto the mounting reference surface.

[0014] Alternatively, in another preferred technical solution, the mounting reference surface of the heat-conducting substrate is provided with a connecting screw hole; the tilting mounting platform is a single structure with a countersunk groove at the center of its surface, and a coaxial threaded hole is provided below the countersunk groove; the connecting screw hole and the threaded hole are screwed together by a countersunk fastening screw with the screw head completely fitted into the countersunk groove.

[0015] The mounting reference surface of the heat-conducting substrate is provided with a limiting groove, and the bottom of the tilting mounting platform is provided with a limiting block that matches the limiting groove.

[0016] In a preferred embodiment, the flexible conductive connector is a strip-shaped flexible circuit board. The flexible circuit board extends along the arrangement direction of the tilting mounting platform and is integrally formed with multiple independent bending portions. The bending angle of each independent bending portion matches the tilt angle of the mounting surface of the corresponding tilting mounting platform, and its bending vertex is located at the high edge of the tilting side of the corresponding tilting mounting platform. The independent bending portions of the flexible circuit board are correspondingly attached to the upper surface of each aluminum substrate, and a continuous surface contact conductive path covering all aluminum substrates is formed by laminating with a conductive adhesive layer.

[0017] Furthermore, multiple tilting mounting platforms are arranged in parallel at intervals on the mounting reference surface, and the straight sections between adjacent independent bends of the flexible circuit board cover the mounting reference surface between adjacent tilting mounting platforms.

[0018] An aluminum substrate fixed to the tilt mounting platform has a groove on its high-angle side edge to accommodate the bending apex of the independent bending section; the aluminum substrate is fixed to the mounting surface of the tilt mounting platform at both ends of its body by screw fasteners, and the mounting position of the screw fasteners avoids the groove and the flexible circuit board.

[0019] In a preferred embodiment, the plurality of tilting mounting platforms includes an outermost tilting mounting platform located at one end of the mounting reference surface, with the mounting surface of the outermost tilting mounting platform facing the inner side of the mounting reference surface; the heat-conducting substrate has a wire-passing hole on the substrate outside the corresponding outermost tilting mounting platform and an accommodating groove on the substrate surface inside the corresponding outermost tilting mounting platform; the aluminum substrate fixed to the outermost tilting mounting platform has an extension portion extending into the accommodating groove on its inclined low side;

[0020] The outermost tilt mounting platform has an arc-shaped groove on its high-angle side edge that communicates with the groove of the aluminum substrate. After the access wire passes through the wire hole, it is fitted with an insulating sheath and then bends sequentially through the arc-shaped groove and the groove, extending along the inclined surface of the aluminum substrate to the receiving groove area. The end of the access wire is connected to a terminal block and a TVS tube in sequence. The TVS tube is welded and fixed to the upper surface of the extension of the aluminum substrate and forms an electrical connection with the aluminum substrate.

[0021] In a preferred embodiment, the multi-faceted cover plate is a one-piece injection-molded structure, comprising:

[0022] The main cover plate covers the outer periphery of the thermally conductive substrate and the substrate assembly in their combined state.

[0023] Multiple protrusions are integrally formed on the main cover plate along the arrangement direction of the tilt mounting platform. The shape of each protrusion is adapted to the combined outer periphery contour of the corresponding tilt mounting platform and aluminum substrate. The contour of the protrusion on the high side of the tilt angle of the corresponding tilt mounting platform has an arc-shaped transition structure.

[0024] The plurality of lenses, each lens corresponding to the position of a light-emitting device, are integrally formed on the corresponding convex part, such that the light-emitting surface of each light-emitting device is directly facing the center of a lens.

[0025] In a preferred embodiment, the heat-conducting substrate is a rectangular plate structure forming a first heat sink. The two sides of the substrate, which are not mounted on the reference surface, extend symmetrically towards the side opposite to the light source module to form second heat sinks. The ends of the two second heat sinks are connected by a third heat sink to form a flow channel with a quadrilateral cross-section and openings on both sides. Multiple heat dissipation grooves are milled from the outer surface of the third heat sink toward the first heat sink. The heat dissipation grooves cut into the interior of the second heat sink along the extension direction of the second heat sink and do not extend to the connection between the second heat sink and the first heat sink.

[0026] In another preferred embodiment, the quadrilateral cross-section is an isosceles trapezoid, the two second heat dissipation plates are the two sides of the isosceles trapezoid, the third heat dissipation plate is the short side of the isosceles trapezoid, and the heat dissipation groove is a straight groove that penetrates the third heat dissipation plate along the cross-sectional direction and partially cuts into the second heat dissipation plate. The extension direction of the straight groove is perpendicular to the plane of the first heat dissipation plate.

[0027] On the outer surface of the second heat sink, a plurality of strip-shaped heat dissipation fins are arranged in sequence along the direction from the end near the first heat sink to the end away from the first heat sink, parallel to the connecting edge of the second heat sink and the first heat sink; the height of each heat dissipation fin gradually increases from the end near the first heat sink to the end away from the first heat sink in the arrangement order.

[0028] Based on the above-mentioned principles of the utility model, the beneficial effects of this utility model are as follows:

[0029] This utility model's integrated tilt-oriented LED light source module fixes the light source components on a mounting platform with a preset tilt angle, achieving uniform beam projection from the factory. This avoids the need for exposed adjustable structures and ensures a flat and simple appearance for the lamp body. At the same time, the preset tilt angles of each light-emitting device are consistent, resulting in high beam angle concentration. This effectively prevents light from being projected onto non-target areas (such as residential windows), reducing light pollution complaints.

[0030] This utility model's light source module integrates a multi-faceted cover plate, combining lens function with a sealing structure. This achieves tilt-angle directional lighting while maintaining a small lamp thickness, resulting in a simple structure and improved aesthetics. The arc-shaped transition structure of its protruding part ensures uniform light diffusion and enhances center illuminance. Furthermore, the aluminum substrate of this light source module is directly connected to the heat-conducting substrate, forming an ultra-short heat conduction path of "light source-aluminum substrate-heat-conducting substrate," reducing thermal resistance.

[0031] The heat sink of this utility model LED light source module significantly improves the heat dissipation effect, specifically by improving heat dissipation efficiency in the following aspects: a heat dissipation groove is set on the quadrilateral outer frame of the flow channel. The groove penetrates the third heat sink and partially cuts into the second heat sink, forming a local thermal bridge perpendicular to the first heat sink, shortening the path of heat transfer from the first heat sink to the third heat sink, and accelerating the lateral diffusion of heat; the groove forms a segmented airflow channel in the third and second heat sinks. When hot air rises in natural convection, cold air is drawn in from the bottom of the groove, forming a chimney effect, forcing airflow circulation, and breaking the original thermal boundary layer stagnation. Attached Figure Description

[0032] Figure 1 This is an exploded structural diagram of one embodiment of the integrated tilt-oriented LED light source module of this utility model;

[0033] Figure 2 This is a schematic diagram illustrating one embodiment of the assembly relationship between the heat-conducting base, the tilting mounting platform, and the aluminum substrate of this utility model.

[0034] Figure 3 This is a schematic diagram of one embodiment of the tilt mounting platform of this utility model;

[0035] Figure 4This is a schematic diagram of one embodiment of the heat-conducting base, tilt mounting platform, and substrate assembly of the present invention in an assembled state.

[0036] Figure 5 This is a schematic diagram of one embodiment of the multi-faceted cover plate of this utility model;

[0037] Figure 6 This is a schematic diagram of one embodiment of the fixing component of this utility model;

[0038] Figure 7 This is a schematic diagram of one embodiment of the radiator of this utility model;

[0039] Figure 8 This is a schematic diagram of one embodiment of the heat dissipation groove of the radiator of this utility model;

[0040] Figure 9 This is a schematic diagram of one embodiment of the heat dissipation fins of this utility model;

[0041] Figure 10 This is a schematic diagram of the overall structure of the first embodiment of the integrated tilt-oriented LED light source module of this utility model;

[0042] Figure 11 This is a schematic diagram of the overall structure of the second embodiment of the integrated tilt-oriented LED light source module of this utility model;

[0043] Figure 12 This is a schematic diagram of the overall structure of the third embodiment of the integrated tilt-oriented LED light source module of this utility model. Detailed Implementation

[0044] The integrated tilt-oriented LED light source module provided by this utility model fixes the aluminum substrate and light-emitting device through a tilt mounting platform with a preset tilt angle, realizing directional, adjustment-free lighting. Its integrated multi-faceted cover plate combines the lens function with the sealing structure, improving light efficiency while reducing thickness. It accurately matches the compliance installation standards of road, landscape and other scenarios, comprehensively solving the industry pain points of non-compliant directional adjustment and insufficient light efficiency in traditional solutions.

[0045] The following embodiments further illustrate the content of this utility model, but should not be construed as limiting the utility model. Any modifications or substitutions made to the methods, steps, or conditions of this utility model without departing from its spirit and essence are within the scope of this utility model.

[0046] Figure 1 As shown, this utility model discloses an integrated tilt-oriented LED light source module, comprising:

[0047] The heat-conducting substrate 1 has a mounting reference surface 10, on which a plurality of tilting mounting platforms 12 are arranged in parallel. The mounting surfaces 120 of the tilting mounting platforms 12 form a preset tilt angle with the mounting reference surface 10. The mounting surfaces of each tilting mounting platform 12 have the same tilt direction and tilt angle value.

[0048] The substrate assembly includes a plurality of aluminum substrates 20 and flexible conductive connectors 21. Each aluminum substrate 20 is fixedly attached to a mounting surface 120 of an inclined mounting stage 12. The flexible conductive connectors 21 bridge adjacent aluminum substrates 20 to form a conductive connection path.

[0049] The light source assembly consists of multiple light-emitting devices 3 mounted on the aluminum substrate 20;

[0050] The multi-faceted cover plate 4 has an inner surface contour that fits the outer periphery contour of the heat-conducting substrate 1 and the substrate assembly in the assembled state, and a lens 40 is formed on the light-emitting surface of each light-emitting device 3; and a fixing component 6 covers the outer periphery of the heat-conducting substrate 1 and the multi-faceted cover plate 4 and tightly installs the two.

[0051] The main function of the tilt mounting platform of this utility model is to provide a mounting surface with a preset tilt angle to fix the aluminum substrate. Under the premise of having a consistent core function of inclined surfaces, the tilt mounting platform can be selected from at least one of wedge, trapezoid, or stepped shapes. In this example, the tilt mounting platform 12 is preferably a wedge-shaped block structure, whose inclined surface forms the mounting surface for fixing the aluminum substrate and forming a preset tilt angle. Multiple wedge-shaped block structures are arranged parallel to each other along the length direction (e.g., longitudinal), width direction (e.g., transverse), or oblique direction of the mounting reference surface 10. The inclined surfaces of the wedge-shaped block structures form the mounting surface 120. All tilt mounting platforms are arranged in the same direction, and under the premise of ensuring that the preset tilt angle values ​​of the tilt mounting platforms are consistent, that is, the tilt direction of the mounting surface of each tilt mounting platform is towards the same target irradiation area, the setting direction of the tilt mounting platforms includes longitudinal, transverse, and oblique directions on the mounting reference surface 10. When the setting direction of the tilt mounting platforms is distributed longitudinally along the mounting reference surface 10, the overall shape of the light source module can be referenced. Figure 11 For horizontal distribution, please refer to Figure 1 Reference for the overall shape of the light source module Figure 10 and Figure 12The number of light-emitting devices 3 on each tilted mounting platform 12 is distributed based on the length of the platform surface. When the mounting platforms are arranged parallel to each other along a non-orthogonal direction (e.g., oblique) of the mounting reference plane, the tilt angle and tilt direction of all mounting platforms are identical, and the light-emitting devices on each aluminum substrate are still arranged in a standard matrix (orthogonal rows and columns). The emitting axes of all light-emitting devices are uniformly offset as the mounting surface tilts, resulting in overall illumination direction adjustment. Multiple light-emitting devices 3 are arranged in a matrix array on each aluminum substrate 20, and the flexible conductive connector 21 is positioned away from the light-emitting devices 3 to avoid obstructing their emitting surfaces.

[0052] The connection between the tilt mounting platform and the heat-conducting substrate includes the following two connection methods:

[0053] In the first case, the tilting mounting platform 12 is integrally cast onto the mounting reference surface.

[0054] In the second method, the tilting mounting platform 12 is mechanically connected to the mounting reference surface of the heat-conducting substrate. In one example, refer to... Figure 2 , Figure 3 The mounting reference surface 10 of the heat-conducting substrate 1 is provided with a connecting screw hole 11; the tilting mounting platform 12 is a single structure with a countersunk groove 121 at the center of its surface, and a coaxial threaded hole 122 is provided below the countersunk groove 121. The connecting screw hole 11 and the threaded hole 122 are screwed together by a countersunk screw 123, and the screw head is completely fitted into the countersunk groove 121. The countersunk depth of the countersunk screw 123 is slightly greater than the height of the screw head to ensure that the screw 123 is not exposed. The countersunk groove 121 can be set at any position of the tilting mounting platform 12. To ensure uniform and reasonable force distribution, the countersunk groove 121 is set at the center of the tilting mounting platform 12.

[0055] The mounting reference surface 10 of the heat-conducting substrate 1 is provided with a limiting groove 13, and the bottom of the tilting mounting platform 12 is provided with a limiting block 124 that matches the limiting groove 13. The tilting mounting platform 12 restricts its displacement along the horizontal direction of the mounting reference surface through the cooperation of the limiting block 124 and the limiting groove 13, and is further fixed by the downward pressing of the multi-faceted cover plate 4. That is, coarse positioning is achieved by the mechanical interlock between the limiting groove and the limiting block, and fine positioning is achieved by the conformal pressing of the multi-faceted cover plate. This design significantly improves the structural reliability while ensuring high-precision assembly.

[0056] The flexible conductive connector 21 is a flexible circuit board (FPC). As a conductive connector, the FPC replaces traditional rigid circuit boards or wires and is flexible. This invention achieves high-precision and high-reliability conductive path adaptation through the multi-segment bending design of the flexible circuit board and the lamination of conductive adhesive. Specifically, the flexible circuit board is a strip-shaped flexible circuit board, see reference... Figure 1 and Figure 4 The flexible circuit board extends along the arrangement direction of the tilt mounting platform 12 and is integrally formed with multiple independent bending portions 221. The bending angle of each independent bending portion 221 matches the tilt angle of the mounting surface of the corresponding tilt mounting platform 12, and its bending vertex 222 is located on the high edge of the tilt mounting platform 12. The high edge of the tilt mounting platform refers to the relatively high area of ​​the mounting surface of the tilt mounting platform along the preset tilt angle direction, that is, when the mounting surface forms a preset tilt angle with the mounting reference surface, the edge or area on the mounting surface that is higher in vertical height from the mounting reference surface. The bending shape of the flexible circuit board is adapted to the outer periphery of the mounting reference surface 10, the tilt mounting platform 12 and the aluminum substrate 20 in the assembled state, ensuring the continuity of electrical connection and structural compatibility. The independent bending portions 221 of the flexible circuit board are correspondingly attached to the upper surface of each aluminum substrate 20, and a continuous surface contact conductive path covering all aluminum substrates 20 is formed by laminating with conductive adhesive, improving conductive reliability and mechanical fixation.

[0057] In a specific example, refer to Figure 4 Multiple tilting mounting platforms 12 are arranged in parallel at intervals on the mounting reference surface, and the straight section 223 between adjacent independent bending portions 221 of the flexible circuit board covers the mounting reference surface between adjacent tilting mounting platforms 12.

[0058] Based on the understanding of the function of the flexible circuit board, the flexible circuit board can be processed into a multi-segment continuously bent strip shape, which is laid along the arrangement direction of the inclined mounting platform 12. Its laying path is a straight line on the same orthographic projection plane. Its specific laying position is set under the premise of realizing its function. In a preferred embodiment, see [reference needed]. Figure 4 The flexible circuit board is laid in the middle of the tilted mounting platform 12 and avoids the light-emitting device. The flexible circuit board can also be processed into multiple discontinuous bent strips, that is, the flexible circuit board is set into multiple independent small segments, laid along the arrangement direction of the tilted mounting platform 12, and each small segment of the flexible circuit board is connected end to end with the adjacent aluminum substrate 20 to conduct the circuit.

[0059] The aluminum substrate 20, which is fixed to the tilt mounting platform 12, has a groove 15 on its high tilt side edge to accommodate the bending apex 222 of the independent bending portion 221; the flexible circuit board is supported by the side wall of the groove 15 to reduce stress concentration at the bending point.

[0060] In one example, the aluminum substrate 20 serves as a heat dissipation and support for the light-emitting device, with a thickness of 1–3 mm, ensuring both mechanical strength and good heat dissipation performance; the total thickness of the flexible circuit board is 0.15–0.3 mm, ensuring flexibility and current carrying capacity.

[0061] The aluminum substrate 20 is fixed to the mounting surface of the tilting mounting platform 12 at both ends by screws. The screws are positioned to avoid the groove 15 and the flexible conductive connector 21. (Reference) Figure 2 Screw holes 202 are provided on both sides of the aluminum substrate 20, and screws 200 are used to apply a uniform clamping force to both sides of the aluminum substrate 20 to ensure that the aluminum substrate 20 is in close contact with the mounting surface of the tilting mounting platform 12. The screws 200 here are small-diameter self-locking screws, such as M2 or M3, to ensure that they do not interfere with the cover plate and meet the mechanical function. Since the light-emitting device 3 and the screws 200 are distributed on the aluminum substrate 20, in order to reasonably distribute the positions of each device, two screws 200 can be placed on opposite sides of the aluminum substrate to avoid squeezing space with the light-emitting device on the same axis. Since the tilting mounting platform 21 is thinner at its lower tilting end, the screws 200 can easily pass through the tilting mounting platform 21 and abut against the heat-conducting substrate 1 below. In order to ensure that the layers are tightly connected, the upper surface of the heat-conducting substrate 1 is provided with a clearance hole 201 corresponding to the screw 200 insertion position.

[0062] refer to Figure 1 The plurality of tilting mounting platforms 12 include an outermost tilting mounting platform 12' located at one end of the mounting reference surface 10, with its mounting surface facing the inner side of the mounting reference surface 10. The heat-conducting substrate 1 has a wire-passing hole 19 on the substrate corresponding to the outermost tilting mounting platform 12', and an accommodating groove 16 is formed on the substrate surface corresponding to the inner side of the outermost tilting mounting platform. The wire-passing hole 19 is located on the outer end face of the heat-conducting substrate 1 and is used to introduce power / signal lines (i.e., access lines 50). The aluminum substrate 20' fixed to the outermost tilting mounting platform 12' has an extension 201 extending from its lower inclined side toward the accommodating groove 16, providing a mounting platform for the wiring terminals.

[0063] The outermost tilt mounting platform 12' has an arc-shaped groove 17 on its high-angle side edge that communicates with the groove of the aluminum substrate 20'. The access wire 50 passes through the wire hole 19, is fitted with an insulating sheath 51, and then bends sequentially through the arc-shaped groove 17 and the groove before connecting to the terminal 52. The terminal 52 extends along the inclined surface of the aluminum substrate 20' from the low-angle side to the receiving groove 16 area. (Reference) Figure 4 The output end of the terminal 52 is connected to a TVS diode 53, which is fixed to the upper surface of the extension 201 by laser welding and forms an electrical connection with the aluminum substrate 20'. Simultaneously, one end of the flexible conductive connector 21 is connected to the surface of the aluminum substrate 20' of the outermost inclined mounting platform 12', forming a conductive path across the mounting platform. This structure allows for fully concealed wiring of the through holes, arc grooves, recesses, and accommodating slots, preventing exposed cables from affecting aesthetics and light field distribution.

[0064] refer to Figure 5In one embodiment, the multi-faceted cover plate 4 is an integral injection-molded structure, formed in one step by a precision mold; its structure includes a main cover plate 41, an outward protrusion 42, and a lens unit.

[0065] The main cover plate 41 covers the outer periphery of the thermally conductive substrate 1 and the substrate assembly in the combined state; it serves as a cover plate to protect the internal circuit and light-emitting devices, and also as a mounting base for the outward protrusion and the lens unit. Under the fastening of the fixing component 6, the main cover plate 41, except for the outward protrusion 42, fits in close contact with the outer periphery of the thermally conductive substrate 1 and the substrate assembly below in the combined state, ensuring that the positions of each device are stable and do not move.

[0066] Multiple protrusions 42 are integrally formed on the main cover plate 41 along the arrangement direction of the tilt mounting platform 12. The shape of each protrusion 42 is adapted to the combined outer peripheral contour of the corresponding tilt mounting platform 12 and aluminum substrate 20 to avoid assembly stress; Reference Figure 1 Since the tilting mounting platform 12 is wedge-shaped, the shape of the outward protrusion 42 is adapted to the wedge shape. The outline of the outward protrusion 41 at the high side edge of the corresponding tilting mounting platform 12 is an arc-shaped transition structure. The arc-shaped surface guides stray light, making the light-emitting areas of adjacent light-emitting devices smoothly transition, which is both aesthetically pleasing and improves the uniformity of light intensity.

[0067] In the plurality of lenses 40, each lens 40 corresponds to the position of a light-emitting device 3, and the lens 40 is integrally formed on the corresponding convex portion 42, such that the light-emitting surface of each light-emitting device 3 is directly facing the center of a lens. The lens 40 is customized according to the application scenario, including convex lenses, Fresnel lenses, or microprism arrays, etc.

[0068] The fixing component 6 of this utility model covers the outer periphery of the heat-conducting substrate 1 and the multi-faceted cover plate 4 and tightly installs them. Specifically, the fixing component 6 adopts a frame component structure, and the frame strips limit and press the outer periphery slide rail grooves of the heat-conducting substrate 1 and the multi-faceted cover plate 4 respectively. In a specific example, refer to... Figure 6 The fixing component 6 includes a first slider 60 and a second slider 61. The first slider 60 consists of a long strip base plate 601 and two slide rails 602 and 603 extending from the two long sides of the base plate 601. One slide rail 603 is inserted into a groove 18 provided on the side wall of the heat-conducting substrate 1, and the other slide rail 602 is inserted into a groove or step provided on the side of the multi-faceted cover plate 4, pressing down on the bottom of the groove or step from top to bottom. By reasonably setting the width of the strip base plate 601, and utilizing the cooperation of the two slide rails with the corresponding grooves and grooves (steps), the two long sides of the multi-faceted cover plate 4 are evenly stressed, thereby pressing the cover plate 4 tightly onto the heat-conducting substrate 1. The second slider 61 consists of a long pressure plate 63 and two claws 64 extending downward from both ends of the pressure plate 63. The long pressure plate 63 is provided with screw holes and is fastened to the heat-conducting substrate 1 by screw fasteners.

[0069] Connection and pressing process: The two claws 64 are respectively inserted into the two grooves of the heat-conducting substrate 1, similar to the slide rail connection method of the first slider. By properly setting the size of the claws 64, the elongated pressure plate presses the short side of the multi-faceted cover plate 4 onto the heat-conducting substrate 1 with uniform force. Screws are used for positioning during assembly to prevent the second slider 61 from slipping or shifting.

[0070] refer to Figure 7 , Figure 8 This paper illustrates one embodiment of a heat sink in an integrated tilt-oriented LED light source module. The heat-conducting substrate 1 has a rectangular plate structure and forms a first heat sink 70. The two non-mounting surfaces of the first heat sink 70 extend symmetrically towards the side opposite to the light source module to form second heat sinks 71 and 71' respectively. The ends of the two second heat sinks 71 and 71' are connected by a third heat sink 72 to form a flow channel with a quadrilateral cross-section and openings on both sides. Multiple heat dissipation grooves 73 are milled from the outer surface of the third heat sink 72 toward the first heat sink 70. The heat dissipation grooves 73 cut into the interior of the second heat sinks 71 and 71' along their extension direction, but do not extend to the connection between the second heat sinks 71 and 71' and the first heat sink 70.

[0071] In this design, the heat dissipation groove 73 not only exists on the surface of the third heat dissipation plate but also extends inward into the interior of the second heat dissipation plates 71 and 71'. Although the heat dissipation groove 73 penetrates deep into the second heat dissipation plates 71 and 71', it does not reach the connection point between the second heat dissipation plates 71 and 71' and the first heat dissipation plate 70; that is, the end of the groove maintains a certain distance from the connection point. The connection point between the second heat dissipation plates 71 and 71' and the first heat dissipation plate 70 bears the superposition of installation stress and thermal stress, making it a mechanically weak point. The heat dissipation groove 73 terminates in front of the connection point, avoiding the risk of stress concentration caused by slotting in this area. At the same time, the ungrooved area maintains the continuous cross-section of the second heat dissipation plate, ensuring overall bending stiffness.

[0072] The first heat sink 70 serves as the direct support for the LED light source module 1, and its overall planar design ensures the flatness of the light source contact surface. The second heat sinks 71 and 71' extend from both sides of the first heat sink 70, forming the side walls of a quadrilateral flow channel. Their ends are connected to the third heat sink 72, ultimately forming the flow channel. The heat dissipation groove 73, through milling, forms multiple segments between the third heat sink 72 and the second heat sinks 71 and 71', creating localized thermal bridges perpendicular to the first heat sink. This shortens the path of heat transfer from the first heat sink to the third heat sink, accelerating lateral heat diffusion. This increases the number of airflow channels while simultaneously reducing the overall weight of the heat sink. The axis of the heat dissipation groove 73 forms an angle of 60° to 90° with the plane of the first heat sink 70. The axis of the heat dissipation groove 73 can be inclined or perpendicular to the first heat sink 70, such as at an angle of 85° ± 5°, forming an inclined guide surface that naturally increases the airflow velocity.

[0073] Based on the fundamental principle of setting heat dissipation grooves to improve heat dissipation efficiency, the heat dissipation grooves can be set into various forms according to actual conditions. In some examples, the heat dissipation groove 73 is a straight groove, a wavy groove, or a zigzag groove, etc. According to actual conditions, it can also be specifically limited to a wavy groove with a wavelength of 3 to 8 mm or a zigzag groove with a bend angle of 100° to 130°.

[0074] By limiting parameters to ensure a balance between heat dissipation area and structural strength, the width of the heat dissipation groove 73 is 0.5 to 2 cm, and the spacing between adjacent heat dissipation grooves 73 is 5 to 10 cm. The extension dimension of the heat dissipation groove 73 along the length direction of the second heat dissipation plates 71 and 71' is 1 / 2 to 5 / 6 of the total length of the second heat dissipation plates 71 and 71'. The ends of the second heat dissipation plates 71 and 71' corresponding to the heat dissipation groove positions have a certain length, which can avoid stress concentration at the end of the groove and extend the service life.

[0075] In a specific embodiment, the quadrilateral cross-section can be any regular or regular quadrilateral. In a preferred embodiment of this utility model, the quadrilateral cross-section is an isosceles trapezoidal structure, the two second heat dissipation plates 71, 71' are the two legs of the isosceles trapezoid, the third heat dissipation plate 72 is the short side of the isosceles trapezoid, and the heat dissipation groove 73 is a straight groove that penetrates the third heat dissipation plate 72 along the cross-sectional direction and partially cuts into the second heat dissipation plates 71, 71', and the extension direction of the straight groove is perpendicular to the plane of the first heat dissipation plate 70.

[0076] refer to Figure 9On the outer surface of the second heat sink 71, 71', a plurality of strip-shaped heat dissipation fins 75 are arranged sequentially along the direction from the end near the first heat sink 70 to the end away from the first heat sink 70, parallel to the connecting edge of the second heat sink 71, 71' and the first heat sink 70. The height of each heat dissipation fin 75 gradually increases from the end near the first heat sink 70 to the end away from the first heat sink 70, meaning that the fin height is higher the further away from the first heat sink 70. At the near-end low fins: when the airflow velocity is low, the low fins reduce flow resistance; at the far-end high fins: after the airflow accelerates, the higher fins can still maintain effective convective heat transfer.

[0077] The inclination angle between the sides of the second heat sinks 71 and 71' and the plane of the first heat sink 70 is α. The height increment between adjacent heat sink fins 75 is equal to the height reduction of the second heat sinks 71 and 71' within the same horizontal distance due to the inclination angle α. This results in the line connecting the tops of all the heat sink fins 75 forming a vertically extending plane perpendicular to the plane of the first heat sink 70. The vertically extending planes on both sides, the plane 70 of the first heat sink, and the outer surface of the third heat sink 72 together form a rectangular cross-section flow channel. The arrangement rule of the heat sink fins 75 is that the height difference (increment) between adjacent fins is equal to the height reduction of the second heat sinks 71 and 71' due to the inclination angle α. This results in the line connecting the tops of all the fins forming a vertical plane, forming a cuboid heat sink structure. This ensures aesthetics and facilitates the arrangement and installation of multi-light source modules. At the same time, the large area of ​​the heat sink fins 75 undoubtedly greatly increases the heat dissipation area.

[0078] The third heat sink 72 has a plurality of parallel-arranged second heat sink fins 76, the second heat sink fins 76 being perpendicular to the heat sink groove 73, and the height of the second heat sink fins 76 being 1 to 3 mm.

[0079] In the above solution, the heat sink forms a heat dissipation network through flow channels, slots, and fins with varying thickness, effectively solving the heat dissipation problem of LED modules under high heat density.

[0080] According to the above technical solution of this utility model, the installation steps of the integrated tilt-oriented LED light source module of this utility model include:

[0081] (1) Arrange the prefabricated tilt mounting platform (wedge block) in parallel on the mounting reference surface of the heat-conducting substrate in the preset direction, and fasten it with countersunk screws;

[0082] (2) Place the aluminum substrate aligned with the inclined surface of the tilting mounting platform, ensuring that the grooves on the high side edge are aligned, and fix both ends of the aluminum substrate to the tilting mounting platform with screws, avoiding the groove area.

[0083] (3) Unfold the strip flexible circuit board along the mounting platform, embed the bent part into the groove of the aluminum substrate, and press the circuit board onto the surface of the aluminum substrate with conductive adhesive to form a conductive path.

[0084] (4) The power cord is introduced through the wire hole of the heat-conducting substrate, and the wire is hidden along the arc groove and groove to the receiving groove. The terminal is welded and fixed to the TVS tube to ensure electrical conduction.

[0085] (5) Align the inner surface of the cover plate with the outline of the heat-conducting substrate and the aluminum substrate, and press lightly to fit; lock the cover plate and the heat-conducting substrate with the slide rail and pressure plate assembly to ensure that the lens is facing the light-emitting device.

[0086] This utility model's technical solution and its modular assembly design allow for the rapid adaptation of various preset tilt angle light source modules to different application scenarios (such as road lighting, landscape lighting, sports stadiums, etc.). Furthermore, by setting the angle of the mounting platform and the number of light-emitting devices on it, various preset tilt angles can be referenced. Figure 10-12 The tilt angle configuration shown is designed to precisely match the lighting requirements of different areas.

[0087] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0088] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An integrated tilt-angle directional LED light source module, characterized in that, The application relates to a heat-conducting base body with a mounting reference surface, wherein a plurality of wedge-shaped mounting blocks are arranged in parallel on the mounting reference surface, and the mounting surfaces of the wedge-shaped mounting blocks form a preset angle with the mounting reference surface. The base plate assembly comprises a plurality of aluminum substrates and flexible conductive connecting pieces, each of the aluminum substrates is fixedly connected to the mounting surface of one of the wedge-shaped mounting blocks, and the flexible conductive connecting pieces are arranged between adjacent aluminum substrates to form a conductive connecting path. The light source assembly is composed of a plurality of light emitting devices arranged on the aluminum substrates. The multi-folding surface cover plate has an inner surface profile which is matched with the outer peripheral profile of the heat-conducting base body and the base plate assembly in the assembled state, and a lens is formed at the light emitting surface position of each light emitting device. The fixing assembly covers the outer periphery of the heat-conducting base body and the multi-folding surface cover plate and tightly mounts the two. The plurality of wedge-shaped mounting blocks are arranged in parallel along the length direction, width direction or oblique direction of the mounting reference surface, and the inclined surfaces of the wedge-shaped mounting blocks form the mounting surfaces.

2. The integrated tilt-angle directional LED light source module of claim 1, wherein, The wedge-shaped mounting blocks are integrally formed on the mounting reference surface by casting.

3. The integrated tilt-angle directional LED light source module of claim 1, wherein, The mounting reference surface of the heat-conducting base body is provided with connecting screw holes, the wedge-shaped mounting blocks are independent structures, a counterbore groove is formed in the center of the surface of each wedge-shaped mounting block, coaxial threaded holes are formed below the counterbore groove, the connecting screw holes and the threaded holes are screwed by a countersunk head fastening screw, and the head of the screw is completely embedded in the counterbore groove.

4. The integrated tilt-angle directional LED light source module of claim 1, wherein, The mounting reference surface of the heat-conducting base body is provided with a limiting groove, and the bottom of the wedge-shaped mounting block is provided with a limiting block matched with the limiting groove. The flexible conductive connecting piece is a strip-shaped flexible circuit board which is integrally formed with a plurality of independent bending parts along the arrangement direction of the wedge-shaped mounting blocks.

5. The integrated tilt-angle directional LED light source module of claim 1, wherein, The plurality of wedge-shaped mounting blocks are arranged in parallel on the mounting reference surface, and the flat sections between adjacent independent bending parts of the flexible circuit board are arranged on the mounting reference surface between adjacent wedge-shaped mounting blocks.

6. The integrated tilt-angle directional LED light source module of claim 5, wherein, The aluminum substrate fixedly connected to the wedge-shaped mounting block is provided with a groove at the high-position side edge of the aluminum substrate, and the groove accommodates the bending vertex of the independent bending part. The aluminum substrate is fixedly connected to the mounting surface of the wedge-shaped mounting block by screw fasteners at both ends of the plate body, and the mounting positions of the screw fasteners avoid the groove and the flexible circuit board.

7. The integrated tilt-angle directional LED light source module of claim 6, wherein, The plurality of said inclined angle mounting tables include an outermost inclined angle mounting table arranged at one end of the mounting reference surface, and the mounting surface of the outermost inclined angle mounting table faces the inner side of the mounting reference surface; the heat-conducting base is provided with a threading hole for threading the access wire on the base corresponding to the outer side of the outermost inclined angle mounting table, and a receiving groove is formed on the surface of the base corresponding to the inner side of the outermost inclined angle mounting table; the aluminum substrate fixed to the outermost inclined angle mounting table has an extension part extending into the receiving groove from the low side of the inclined surface of the aluminum substrate; The edge of the high side of the inclined angle of the outermost inclined angle mounting table is provided with an arc-shaped groove in communication with the groove of the aluminum substrate, the access wire is sleeved with an insulating sheath after being threaded out of the threading hole, and is sequentially bent through the arc-shaped groove, the groove, and extends along the inclined surface of the aluminum substrate to the receiving groove area; the end of the access wire is sequentially connected with a terminal and a TVS tube, and the TVS tube is welded and fixed on the upper surface of the extension part of the aluminum substrate and is in electrical communication with the aluminum substrate.

8. The integrated tilt-angle directional LED light source module of claim 1, wherein, The multi-fold cover plate is an integral injection molding structure, comprising: A main cover plate covers the outer contour of the heat-conducting base and the substrate assembly in the combined state; A plurality of outer protrusions are integrally formed on the main cover plate along the arrangement direction of the inclined angle mounting tables, and the shape of each outer protrusion is adapted to the combined outer contour of the corresponding inclined angle mounting table and aluminum substrate; the contour of the outer protrusion corresponding to the high side of the inclined angle of the inclined angle mounting table is an arc-shaped transition structure; and A plurality of said lenses, each lens corresponding to the position of a light emitting device, and the lens is integrally formed in the corresponding outer protrusion, so that the light emitting surface of each light emitting device is opposite to the center of a lens.

9. The integrated tilt-angle directional LED light source module of claim 1, wherein, The heat-conducting base is a rectangular plate structure and constitutes a first heat sink, and the two sides of the non-mounting reference surface are symmetrically extended to the side opposite to the light source module to form a second heat sink, and the ends of the two second heat sinks are connected by a third heat sink to form a flow channel with a quadrilateral cross section with two openings; a plurality of heat dissipation grooves are milled from the outer surface of the third heat sink towards the first heat sink, the heat dissipation grooves are cut into the second heat sink along the extension direction of the second heat sink, and the heat dissipation grooves do not extend to the connection between the second heat sink and the first heat sink.

10. The integrated tilt-angle directional LED light source module of claim 9, wherein, The quadrilateral cross section is an isosceles trapezoidal structure, the two second heat sinks are the two legs of the isosceles trapezoidal structure, the third heat sink is the short side of the isosceles trapezoidal structure, and the heat dissipation grooves are straight grooves that penetrate the third heat sink along the cross section direction and partially cut into the second heat sink, and the extension direction of the straight grooves is perpendicular to the plane of the first heat sink; On the outer surface of the second heat sink, a plurality of strip-shaped heat dissipation fins parallel to the connecting edge of the second heat sink and the first heat sink are arranged in sequence from the end close to the first heat sink to the end away from the first heat sink; the height of each heat dissipation fin gradually increases along the arrangement order from the end close to the first heat sink to the end away from the first heat sink.

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