Waterproof COB module suitable for small spacing
By adopting a flat panel-shaped bottom shell and two waterproof groove structures in the LED module, the problem of point spacing inconsistency of the small-pitch LED module is solved, and the waterproof performance is improved, which is suitable for outdoor use.
Patent Information
- Application Number
- CN202422539706.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The existing waterproof LED module structure is difficult to achieve consistency of point spacing when the LED point spacing is small, and cannot meet the waterproof requirements for outdoor use.
The flat panel-shaped bottom shell design is designed with two waterproof grooves and sealing ring structures to ensure the consistency of point spacing between modules, and a waterproof layer is formed through sealant and transparent film to meet the IP65 waterproof standard.
It achieves consistency in the midpoint spacing of small-pitch LED modules, and has good waterproof performance, suitable for outdoor environments.
Smart Images
Figure CN223137836U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an LED waterproof structure, in particular to a waterproof COB module suitable for small pitch. Background Technique
[0002] The existing waterproof LED module structure is as Figure 1 shown. After the LED lamp board 2 sinks into the bottom shell 1, glue 3 is poured around to seal it into a waterproof module. This embedded bottom shell has side walls. Due to the wall thickness problem of the side walls, there will be a relatively large gap when splicing between modules, resulting in that this form of outdoor LED module can only be used on LED lamp boards with a relatively large pitch (LED dot pitch above 2.5 mm), while for lamp boards with a relatively small LED dot pitch (LED dot pitch below 2.5 mm), the consistency of the dot pitch cannot be achieved. Summary of the Invention
[0003] Aiming at the above existing technical problems, the utility model provides a waterproof COB module suitable for small pitch, which realizes the consistency of dot pitch in lamp boards with a relatively small LED dot pitch.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme: A waterproof COB module suitable for small pitch, including a bottom shell, an LED lamp board and a first sealing ring; the bottom shell is a flat plate shape, and there is a component placement port for placing a connector on one side of the bottom shell. A first waterproof groove is formed along the four sides of the front of the bottom shell and the component placement port; the front of the LED lamp board is encapsulated with RGB chips, and a control component and a connector are arranged on the back of the LED lamp board; the shape of the first sealing ring is adapted to the first waterproof groove, the first sealing ring is placed in the first waterproof groove on the bottom shell, and the back of the LED lamp board contacts the first sealing ring and is fixed on the bottom shell, and the connector is located in the component placement port.
[0005] Further, the back of the bottom shell is fixed on the LED box body.
[0006] Further, a second waterproof groove is provided on the outer periphery of the component placement port on the back of the bottom shell, and a second sealing ring adapted to it is arranged in the second waterproof groove.
[0007] Further, there are multiple module positions on the LED box body, and a connection port for the connector adapted to the component placement port is provided on the middle column of the LED box body; component placement ports for placing connectors are provided on both sides of the bottom shell, one side component placement port is butted against the middle column, and the other side is sealed by a sealing cover.
[0008] Further, a layer of three-proof paint is sprayed on the surface of the control component.
[0009] Further, the RGB chip is integrally sealed with sealant to form a waterproof layer; a transparent film is laminated on the surface of the waterproof layer.
[0010] Further, the bottom case is made of aluminum.
[0011] The beneficial effects of adopting the above technical solutions are as follows: the bottom case of the present utility model is changed to a flat plate-shaped structure, eliminating the side wall of the bottom case, and there is no problem of wall thickness between the spliced modules, which is applicable to waterproof modules with small outdoor pitch. For LED lamp beads with a pitch below 2.5 mm, conventional modules cannot be used. It ensures the pitch consistency when the modules are spliced. At the same time, two waterproof grooves and the structure of a waterproof sealing ring are adopted to achieve waterproofing, meeting the waterproof requirements for outdoor use. Description of the Drawings
[0012] Figure 1 is a schematic structural diagram of the prior art;
[0013] Figure 2 is an exploded schematic diagram of the present utility model;
[0014] Figure 3 is a schematic structural diagram of the present utility model after assembly;
[0015] Figure 4 is a schematic diagram of the front waterproofing of the LED lamp board of the present utility model;
[0016] Figure 5 is a schematic structural diagram of the back of the LED lamp board of the present utility model;
[0017] Figure 6 is a schematic structural diagram of the front of the bottom case of the present utility model;
[0018] Figure 7 is a schematic structural diagram of the back of the bottom case of the present utility model;
[0019] Figure 8 is an assembly schematic diagram of the present utility model and the LED box;
[0020] In the figure: 1. Bottom case, 101. First waterproof groove, 102. Second waterproof groove, 103. Component placement opening, 2. LED lamp board, 201. RGB chip, 202. Control component, 203. Connector, 3. Glue, 4. Side wall, 5. First sealing ring, 6. Screw, 7. Waterproof layer, 8. Film, 9. Second sealing ring, 10. Sealing cover, 11. LED box, 1101. Middle column. Detailed Description of the Invention
[0021] The present utility model will be further described in detail below with reference to the drawings.
[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0023] An embodiment of the present utility model is as follows: As Figure 2 shown, a waterproof COB module suitable for small pitch includes a bottom case 1, an LED lamp board 2, and a first sealing ring 5. As Figure 6 shown, the bottom case 1 is a flat plate shape. On one side of the bottom case 1, there is a component placement opening 103 for placing a connector 203, and a first waterproof groove 101 is formed along the four sides of the front of the bottom case 1 and the component placement opening 103; as Figure 3 and Figure 5 shown, on the front of the LED lamp board 2, RGB chips 201 are encapsulated, and on the back of the LED lamp board 2, a control component 202 and a connector 203 are provided. As Figure 2 and Figure 3 shown, the shape of the first sealing ring 5 is adapted to the first waterproof groove 101. The first sealing ring 5 is placed in the first waterproof groove 101 on the bottom case 1, and the back of the LED lamp board 2 is in contact with the first sealing ring 5 and is fixed on the bottom case 1 through screws 6 to form a COB module. The connector 203 is located in the component placement opening 103. When assembling this COB module, as Figure 8 shown, the back of the bottom case 1 can be fixed on the LED box body 11. The bottom case 1 of the present utility model has a flat plate shape structure, eliminating the side walls of the existing bottom case 1. There is no problem of wall thickness between the spliced modules, which is suitable for outdoor small-pitch waterproof modules. When the LED beads have a pitch of less than 2.5 mm, conventional modules cannot be used. It can ensure the pitch consistency when the modules are spliced. At the same time, a waterproof structure of a waterproof groove and a waterproof sealing ring is adopted to achieve waterproofing, taking into account the waterproof requirements for outdoor use.
[0024] In other specific embodiments of the present utility model, the rest is the same as the above embodiment. The difference is that, as Figure 7 shown, on the back of the bottom case 1, a second waterproof groove 102 is provided on the outer periphery of the component placement opening 103, and a second sealing ring 9 adapted thereto is provided in the second waterproof groove 102. A two-seal structure is adopted to improve the waterproof level and meet the installation requirements of IP65. The first sealing ring 5 and the second sealing ring 9 are made of silica gel, and the hardness of the sealing ring can be specifically selected according to the required deformation amount.
[0025] In some other specific embodiments of the present utility model, the rest is the same as the above embodiments, except that, as Figure 8 shown, there are multiple module positions on the LED box body 11, and the connection port of the connector 203 is provided on the middle column 1101 of the LED box body 11 and is adapted to the component placement port 103; component placement ports 103 for placing the connector 203 are provided on both sides of the bottom case 1, one side of the component placement port 103 is docked with the middle column 1101, and the other side is sealed by a sealing cover 10. There is only one connector 203 on the LED lamp board 2 that is docked with the connection port on the middle column 1101 of the LED box body 11, and the component placement ports 103 are provided on both sides of the bottom case 1 to meet the general performance. Only one side of the placement port needs to be used during installation, and the other side does not need to be connected to the LED box body 11 and can be sealed by a sealing cover.
[0026] In some other specific embodiments of the present utility model, the rest is the same as the above embodiments, except that, as Figure 5 shown, a layer of three-proof paint is sprayed on the surface of the control element 202 to perform waterproof and moisture-proof treatment on the surface of the component.
[0027] In some other specific embodiments of the present utility model, the rest is the same as the above embodiments, except that, as Figure 4 shown, the RGB chip 201 is integrally sealed by a sealant to form a waterproof layer 7; a transparent film 8 is further laminated on the surface of the waterproof layer 7. A film 8 with high transparency and scratch resistance is selected. After lamination, it can form a layer of protection for the sealant and can also provide secondary isolation protection for the RGB lamp beads.
[0028] In some other specific embodiments of the present utility model, the rest is the same as the above embodiments, except that, as Figure 6 and Figure 7 shown, the bottom case 1 is made of aluminum material. The aluminum material can quickly absorb the excess heat generated by the LED lamp beads and components on the lamp board for rapid heat dissipation.
[0029] Of course, the above embodiments are only used to illustrate the technical concept and features of the present utility model, and their purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot be used to limit the protection scope of the present utility model. All equivalent transformations or modifications made according to the spirit of the main technical solution of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A waterproof COB module applicable to small pitch, characterized in that, It includes a bottom shell, an LED lamp board and a first sealing ring; The bottom shell is in the shape of a flat plate. On one side of the bottom shell, there is a component placement opening for placing a connector. A first waterproof groove is formed along the four sides of the front surface of the bottom shell and the component placement opening; The front surface of the LED lamp board is encapsulated with RGB chips, and control components and a connector are arranged on the back surface of the LED lamp board; The shape of the first sealing ring is adapted to the first waterproof groove. The first sealing ring is placed in the first waterproof groove on the bottom shell. The back surface of the LED lamp board contacts the first sealing ring and is fixed on the bottom shell. The connector is located in the component placement opening.
2. The waterproof COB module applicable to small pitch according to claim 1, wherein The back surface of the bottom shell is fixed on the LED box body.
3. A waterproof COB module suitable for small pitch according to claim 1 or 2, characterized in that A second waterproof groove is provided on the outer periphery of the component placement opening on the back surface of the bottom shell, and a second sealing ring adapted thereto is arranged in the second waterproof groove.
4. The waterproof COB module applicable to small pitch according to claim 2, wherein, There are multiple module positions on the LED box body. A connection port for the connector is provided on the middle column of the LED box body and is adapted to the component placement opening; Component placement openings for placing connectors are provided on both sides of the bottom shell. One side of the component placement opening is docked with the middle column, and the other side is sealed with a sealing cover.
5. A waterproof COB module applicable to small pitch according to claim 1 or 2, characterized in that A layer of three-proof paint is sprayed on the surface of the control component.
6. The waterproof COB module applicable to small pitch according to claim 1 or 2, characterized in that, The RGB chips are integrally sealed with a sealant to form a waterproof layer; A transparent film is laminated on the surface of the waterproof layer.
7. The waterproof COB module applicable to small pitch according to claim 1 or 2, characterized in that, The bottom shell is made of aluminum material.