A plastic-coated aluminum downlight structure with COB light source

Abstract

This utility model discloses a plastic-coated aluminum downlight structure with a COB light source, comprising: a plastic-coated aluminum shell, which includes an inner aluminum shell and a plastic shell integrally covering the outer side of the inner aluminum shell; a light source structure including a light source board, COB LEDs automatically soldered onto the light source board with pads on the back; a COB bracket attached to the bottom surface of the light source structure; a lamp reflector disposed on the bottom surface of the COB bracket; and a face ring disposed on the bottom surface of the lamp reflector and snapped into the plastic-coated aluminum shell. In this utility model, the plastic-coated aluminum shell includes an inner aluminum shell and a plastic shell integrally covering the outer side of the inner aluminum shell. The inner aluminum shell effectively conducts and dissipates heat from the light source board, while the plastic shell improves safety and reliability and reduces processing costs. The use of COB LEDs with pads on the back facilitates automated soldering operations, improves the soldering efficiency of the COB LEDs, and enables mass production.

Description

Technical Field

[0001] This utility model belongs to the field of lighting technology, specifically relating to a plastic-coated aluminum downlight structure with a COB light source. Background Technology

[0002] Downlights are a common type of lighting fixture. They typically consist of a die-cast metal housing, a light source board fixed inside the housing, and a COB (Chip-on-Board) light source spot-welded onto the light source board. During assembly, a COB bracket is used to position the light source board. While this design can meet general usage requirements, the die-cast metal housing has a high processing cost. Furthermore, because the COB light source's solder pads are on the bottom surface, spot welding is the only option for fixing the COB light source, significantly increasing the difficulty of soldering the light source and reducing its efficiency. This makes it difficult to meet the needs of mass production. Utility Model Content

[0003] The purpose of this invention is to provide a plastic-coated aluminum downlight structure with a COB light source, aiming to address the aforementioned technical deficiencies in the existing technology.

[0004] The technical solution to achieve the purpose of this utility model is a plastic-coated aluminum downlight structure with a COB light source, comprising:

[0005] A plastic-coated aluminum shell, comprising an inner aluminum shell and a plastic shell integrally covering the outer side of the inner aluminum shell;

[0006] The light source structure is fixed on the inner aluminum shell of the plastic-coated aluminum shell. The light source structure includes a light source board and COB lamp beads that are automatically soldered onto the light source board and have pads on the back.

[0007] The COB bracket is attached to the bottom surface of the light source structure and fixed to the top wall of the inner aluminum shell by screws. It also works with the top wall of the inner aluminum shell to position the light source structure.

[0008] The lamp cup, located on the bottom surface of the COB bracket, is used to diffuse and illuminate the light from the COB LED beads.

[0009] The face ring, set on the bottom surface of the lamp cup and snapped into the plastic-coated aluminum housing, is used to position the lamp cup on the bottom surface of the COB bracket.

[0010] A further preferred embodiment is that the inner cavity depth of the plastic outer shell is greater than the height of the inner aluminum shell;

[0011] The lower part of the inner wall of the plastic shell is provided with several buckle slots, and the buckle slots are located below the inner aluminum shell.

[0012] The top surface of the face ring is integrally formed with several fasteners;

[0013] The face ring is located in the lower part of the inner cavity of the plastic shell, and the fastener is positioned by being fastened in the fastener groove.

[0014] A further preferred embodiment is that the COB bracket includes an annular bracket body, and mounting protrusions are integrally formed at both ends of the diameter of the annular bracket body, and mounting holes are provided on the mounting protrusions;

[0015] The annular bracket has an annular groove in the middle of its bottom surface, and the annular groove is concentrically arranged with the annular bracket body.

[0016] The top of the lamp cup is locked in the annular groove for limitation;

[0017] The screw passes through the mounting hole of the mounting protrusion and is threadedly connected to the inner aluminum shell.

[0018] A further preferred embodiment is that the top surface of the annular support body is integrally formed with several reinforcing ribs;

[0019] One of the reinforcing ribs extends to the mounting protrusion at its outer end, and a locking guide hole is provided on part of the reinforcing rib.

[0020] A further preferred embodiment is that the top wall of the inner aluminum shell has several heat dissipation holes.

[0021] A further preferred embodiment is that the top edges of the inner aluminum shell and the plastic shell are provided with overlapping terminal slots.

[0022] A further preferred embodiment is that spring clips are provided on the symmetrical outer walls of the plastic shell.

[0023] Compared with the prior art, the COB light source plastic-coated aluminum downlight structure provided by this utility model has the following positive effects: The plastic-coated aluminum shell in this utility model includes an inner aluminum shell and a plastic shell integrally covered on the outside of the inner aluminum shell. The inner aluminum shell can effectively conduct and dissipate heat for the heat dissipation of the light source board, improving the heat conduction and heat dissipation performance. Moreover, the plastic shell can improve the safety and reliability of use, and also reduce the processing cost.

[0024] Furthermore, the light source structure includes a light source board and COB LED beads that are automatically soldered onto the light source board and have pads on the back. The use of COB LED beads with pads on the back facilitates automated soldering operations, improves the soldering efficiency of COB LED beads, and can meet the needs of mass production.

[0025] Furthermore, its COB bracket includes a circular bracket body, with mounting protrusions integrally formed at both ends of the diameter of the circular bracket body, and mounting holes are provided on the mounting protrusions; a circular groove is provided in the middle of the bottom surface of the circular bracket. Its COB bracket can not only effectively and quickly realize the installation limit of COB lamp beads, but also ensure the assembly stability and effectiveness of the lamp cup through the circular groove. Attached Figure Description

[0026] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the specific structure of the COB support in this utility model;

[0030] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0031] Reference numerals: 1. Plastic-coated aluminum outer shell, 11. Inner aluminum shell, 12. Plastic outer shell, 2. Light source structure, 3. COB bracket, 31. Circular bracket body, 32. Mounting protrusion, 33. Mounting hole, 34. Circular groove, 4. Lamp cup, 5. Face ring, 6. Clip groove, 7. Clip, 8. Reinforcing rib, 9. Terminal slot, 10. Spring buckle, 13. Connecting terminal, 14. Positioning guide hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example

[0034] See Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a COB light source plastic-coated aluminum downlight structure includes: its plastic-coated aluminum shell 1, the plastic-coated aluminum shell including an inner aluminum shell 11 and a plastic shell 12 integrally covering the outer side of the inner aluminum shell; with the above structure, the heat of the light source board can be effectively transferred to the plastic shell through the inner aluminum shell, and the heat conduction and heat dissipation contact area is greatly increased, improving the heat dissipation effectiveness, while the plastic shell can also ensure the safety of the overall structure, and heat dissipation fins can be provided on the outer wall of the plastic shell to increase the heat dissipation area;

[0035] Meanwhile, the light source structure 2 is fixed to the inner aluminum shell of the plastic-coated aluminum shell. The light source structure includes a light source board, COB LEDs that are automatically soldered onto the light source board with pads on their back sides. The COB LEDs have pads on their back sides, allowing for automatic soldering by an automatic soldering machine, which improves the effectiveness and efficiency of the soldering process. A COB bracket 3 is attached to the bottom surface of the light source structure and fixed to the top wall of the inner aluminum shell by screws, thus positioning the light source structure in conjunction with the top wall of the inner aluminum shell. A lamp reflector 4 is located on the bottom surface of the COB bracket and diffuses the light from the COB LEDs. A face ring 5 is located on the bottom surface of the lamp reflector and snaps into the plastic-coated aluminum shell, positioning the lamp reflector on the bottom surface of the COB bracket. This combination of structures improves the convenience and stability of assembly.

[0036] Figure 2 and Figure 4 As shown, in this embodiment, the inner cavity depth of the plastic outer shell is greater than the height of the inner aluminum shell; the lower part of the inner wall of the plastic outer shell is provided with several snap-fit ​​grooves 6, and the snap-fit ​​grooves are located below the inner aluminum shell; during assembly, the light source structure and COB bracket are located on the top wall of the inner cavity of the inner aluminum shell, and at the same time, several snap-fit ​​pieces 7 are integrally formed on the top surface of the face ring; during assembly, the face ring is located in the lower part of the inner cavity of the plastic outer shell, and the snap-fit ​​pieces are snapped into the snap-fit ​​grooves for positioning. The face ring can position the lamp cup during installation, ensuring the effectiveness and reliability of the lamp cup.

[0037] like Figure 2 and Figure 3 As shown, the COB bracket includes a circular bracket body 31, with mounting protrusions 32 integrally formed at both ends of the circular bracket body's diameter. Mounting holes 33 are provided on the mounting protrusions. Furthermore, a circular groove 34 is provided in the center of the bottom surface of the circular bracket, concentrically positioned with the circular bracket body. During assembly, the top of the lamp reflector is locked within the circular groove for positioning. The screw passes through the mounting holes of the mounting protrusions and is threadedly connected to the inner aluminum shell. The length of the mounting protrusions can be customized as needed. The circular groove is located below the inner ring surface of the circular bracket body, with the top of the lamp reflector abutting within the circular groove, ensuring stable and effective installation of the lamp reflector.

[0038] like Figure 2 and Figure 3 As shown in this embodiment, the top surface of the annular bracket body is integrally formed with several reinforcing ribs 8; during processing, the outer end of one of the reinforcing ribs extends to the mounting protrusion, and some reinforcing ribs are provided with locking guide holes 14. The reinforcing ribs can ensure the strength of the overall structure and prevent damage, while the locking guide holes can be used to install locking posts or screws or other structures as needed.

[0039] Furthermore, the top wall of the inner aluminum shell has several heat dissipation holes, improving heat dissipation effectiveness.

[0040] like Figure 1 and Figure 2 As shown, the top edges of the inner aluminum shell and the plastic shell are provided with overlapping terminal slots 9. Connecting terminals 13 are secured within these terminal slots, ensuring effective and reliable electrical assembly. Simultaneously, spring clips 10 are provided on the symmetrical outer walls of the plastic shell. These spring clips are a conventional structure in the prior art, simply implemented, primarily used for securing to the mounting panel.

[0041] Compared with the prior art, the COB light source plastic-coated aluminum downlight structure provided by this utility model has the following positive effects: The plastic-coated aluminum shell in this utility model includes an inner aluminum shell and a plastic shell integrally covered on the outside of the inner aluminum shell. The inner aluminum shell can effectively conduct and dissipate heat for the heat dissipation of the light source board, improving the heat conduction and heat dissipation performance. Moreover, the plastic shell can improve the safety and reliability of use, and also reduce the processing cost.

[0042] Furthermore, the light source structure includes a light source board and COB LED beads that are automatically soldered onto the light source board and have pads on the back. The use of COB LED beads with pads on the back facilitates automated soldering operations, improves the soldering efficiency of COB LED beads, and can meet the needs of mass production.

[0043] Furthermore, its COB bracket includes a circular bracket body, with mounting protrusions integrally formed at both ends of the diameter of the circular bracket body, and mounting holes are provided on the mounting protrusions; a circular groove is provided in the middle of the bottom surface of the circular bracket. Its COB bracket can not only effectively and quickly realize the installation limit of COB lamp beads, but also ensure the assembly stability and effectiveness of the lamp cup through the circular groove.

[0044] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A structure for a COB light source plastic-coated aluminum downlight, characterized in that: include: A plastic-coated aluminum shell, comprising an inner aluminum shell and a plastic shell integrally covering the outer side of the inner aluminum shell; The light source structure is fixed on the inner aluminum shell of the plastic-coated aluminum shell. The light source structure includes a light source board and COB lamp beads that are automatically soldered onto the light source board and have pads on the back. The COB bracket is attached to the bottom surface of the light source structure and fixed to the top wall of the inner aluminum shell by screws. It also works with the top wall of the inner aluminum shell to position the light source structure. The lamp cup, located on the bottom surface of the COB bracket, is used to diffuse and illuminate the light from the COB LED beads. The face ring, set on the bottom surface of the lamp cup and snapped into the plastic-coated aluminum housing, is used to position the lamp cup on the bottom surface of the COB bracket.

2. The structure of a plastic-coated aluminum downlight with a COB light source according to claim 1, characterized in that: The inner cavity depth of the plastic outer shell is greater than the height of the inner aluminum shell. The lower part of the inner wall of the plastic shell is provided with several buckle slots, and the buckle slots are located below the inner aluminum shell. The top surface of the face ring is integrally formed with several fasteners; The face ring is located in the lower part of the inner cavity of the plastic shell, and the fastener is positioned by being fastened in the fastener groove.

3. The structure of a plastic-coated aluminum downlight with a COB light source according to claim 1, characterized in that: The COB bracket includes a circular bracket body, and mounting protrusions are integrally formed at both ends of the diameter of the circular bracket body. Mounting holes are provided on the mounting protrusions. The annular bracket has an annular groove in the middle of its bottom surface, and the annular groove is concentrically arranged with the annular bracket body. The top of the lamp cup is locked in the annular groove for limitation; The screw passes through the mounting hole of the mounting protrusion and is threadedly connected to the inner aluminum shell.

4. The structure of a plastic-coated aluminum downlight with a COB light source according to claim 3, characterized in that: The top surface of the annular support body is integrally formed with several reinforcing ribs; One of the reinforcing ribs extends to the mounting protrusion at its outer end, and a locking guide hole is provided on part of the reinforcing rib.

5. The structure of a plastic-coated aluminum downlight with a COB light source according to claim 1, characterized in that: The top wall of the inner aluminum shell has several heat dissipation holes.

6. The structure of a plastic-coated aluminum downlight with a COB light source according to claim 1, characterized in that: The inner aluminum shell and the plastic outer shell have overlapping terminal slots along their top wall edges.

7. The structure of a plastic-coated aluminum downlight with a COB light source according to claim 1, characterized in that: Spring buckles are provided on the symmetrical outer walls of the plastic shell.

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