LED lamp panel dustproof structure

By designing a combined structure of heat dissipation back cover, heat dissipation side plate and sealing groove on the LED light board, the problem of poor dust prevention of traditional LED light heat sink is solved, achieving better sealing and heat dissipation, and extending the service life of the LED light board.

CN224201577UActive Publication Date: 2026-05-05SHANDONG HUAHONG MICROELECTRONICS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HUAHONG MICROELECTRONICS TECHNOLOGY CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Traditional LED energy-saving lamps have poor dust protection in their heat sinks, allowing dust to easily enter the heat dissipation holes, reducing heat dissipation efficiency and affecting lifespan.

Method used

The combined structure of heat dissipation back cover, heat dissipation side plate, sealing groove and sealing layer is adopted to enhance the sealing performance, and the heat dissipation area is increased by the main and secondary heat dissipation grooves to ensure the dustproof and moisture-proof effect of the LED light board.

Benefits of technology

It effectively enhances the sealing and heat dissipation of the LED light panel, reduces the chance of dust and liquid entering, and extends the service life of the LED light panel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an LED lamp panel dustproof structure which comprises a heat dissipation rear cover, the upper surface of the heat dissipation rear cover is fixedly connected with a heat dissipation side plate and an LED lamp bead plate, main heat dissipation grooves are symmetrically formed in the lower surface of the heat dissipation rear cover, the upper end of the inner side face of the heat dissipation side plate is fixedly connected with a limiting ring, and the upper surface of the limiting ring is movably connected with a light guide plate. Sealing grooves are formed in the upper surfaces of the heat dissipation side plates, sealing layers are fixedly connected into the sealing grooves, meanwhile, the inner side face of the mounting frame is fixedly connected with a light-transmitting plate, the outer side face of the mounting frame is symmetrically connected with fixing plates, the ends, away from the mounting frame, of the fixing plates are fixedly connected with clamping blocks, and the clamping blocks are fixedly connected into clamping grooves formed in the end face of the heat dissipation rear cover. According to the LED lamp panel, through the cooperation of the mounting frame, the fastening plate, the sealing layer, the fastening layer, the fixing plate and the clamping block, the sealing performance of the connecting position between the mounting frame and the heat dissipation side plate can be effectively enhanced, so that the overall dustproof and moistureproof effects of the LED lamp panel are enhanced, and the probability that the LED lamp panel breaks down is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of LED lighting technology, specifically to a dustproof structure for LED light panels. Background Technology

[0002] LED energy-saving lamps are a new type of lighting source. Due to their advantages such as small size, low power consumption, long lifespan, high brightness, low heat generation, and environmental friendliness, LEDs have been widely used in daily life. However, the dustproof effect of traditional LED energy-saving lamp heat sinks is generally poor. When the LED lamp is not in use, dust often enters the heat sink base through the heat dissipation holes. After long-term use, the heat dissipation holes may become blocked by dust, reducing the heat dissipation effect and increasing the probability of damage to the internal components of the LED lamp, thus affecting the lifespan of the LED lamp. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, a dustproof structure for LED light panels is provided to solve the problems mentioned in the background technology.

[0004] To achieve the above objectives, a dustproof structure for an LED light board is provided, comprising: a heat dissipation back cover, wherein a heat dissipation side plate and an LED light bead board are fixedly connected to the upper surface of the heat dissipation back cover, and a main heat dissipation groove is symmetrically opened on the lower surface of the heat dissipation back cover; a limiting ring is fixedly connected to the upper end of the inner side of the heat dissipation side plate, and a light guide plate is movably connected to the upper surface of the limiting ring; a sealing groove is opened on the upper surface of the heat dissipation side plate, and a sealing layer is fixedly connected in the sealing groove; a light-transmitting plate is fixedly connected to the inner side of the mounting frame, and a fixing plate is symmetrically connected to the outer side of the mounting frame; a locking block is fixedly connected to the end of the fixing plate away from the mounting frame, and the locking block is fixedly connected to a slot opened on the end face of the heat dissipation back cover; and a fastening layer is connected to the surface of the mounting frame relative to the position of the limiting ring, the fastening layer abutting against the upper surface of the light guide plate; and secondary heat dissipation grooves are symmetrically opened on the outer side of the heat dissipation side plate.

[0005] Preferably, the heat dissipation back cover has a rectangular structure, and multiple sets of main heat dissipation grooves are opened parallel and equally spaced along the length direction on the lower surface of the heat dissipation back cover. All sets of main heat dissipation grooves have a semi-cylindrical structure, and the LED lamp bead board is fixedly connected to the upper surface of the heat dissipation back cover by a buckle.

[0006] Preferably, the heat dissipation side plate has a square cylindrical structure, the dimensions of the outer side of the heat dissipation side plate are adapted to the dimensions of the outer side of the heat dissipation back cover, and the cross-section formed by the heat dissipation side plate and the heat dissipation back cover is U-shaped.

[0007] Preferably, the outer side of the heat dissipation side plate has multiple sets of secondary heat dissipation grooves that are parallel and equally spaced along the height direction, and the multiple sets of secondary heat dissipation grooves are all in the shape of a square, while the cross-section of the secondary heat dissipation grooves is square.

[0008] Preferably, the sealing groove on the upper surface of the heat dissipation side plate has a U-shaped structure, the cross-section of the sealing groove has an isosceles trapezoidal structure, and the limiting ring fixedly connected to the inner side of the heat dissipation side plate has a U-shaped structure, while the size of the inner cavity of the limiting ring is larger than the size of the outer side of the LED lamp bead board.

[0009] Preferably, the mounting frame has a U-shaped structure, the dimensions of the outer side of the mounting frame are matched with the dimensions of the outer side of the heat dissipation side plate, while the dimensions of the inner side of the mounting frame are smaller than the dimensions of the inner side of the heat dissipation side plate, and the light-transmitting plate fixedly connected to the inner side of the mounting frame has a rectangular structure, while the fastening layer fixedly connected to the lower surface of the mounting frame has a U-shaped structure, and the light guide plate is fixedly connected to the upper surface of the limiting ring through the fastening layer.

[0010] Preferably, a set of fixing plates is fixedly connected to both ends of the outer side of the mounting frame. Both sets of fixing plates are rectangular in shape, and the locking blocks fixedly connected to the fixing plates are right-angled trapezoidal in shape. Two sets of auxiliary grooves are symmetrically opened on both sides of the fixing plates near the locking blocks. Both sets of auxiliary grooves are semi-cylindrical in shape. At the same time, fastening plates are connected to the lower surface of the mounting frame relative to the sealing layer. The fastening plates are U-shaped in shape, and multiple sets of protruding strips are fixedly connected at equal intervals on the lower surface of the fastening plates. The protruding strips are in the shape of a square, and the cross-section of the protruding strips is semi-circular.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the cooperation of the mounting frame, fixing plate, clip, sealing layer, fastening plate and fastening layer, the sealing performance at the connection between the heat dissipation side plate and the mounting frame can be effectively enhanced, thereby effectively enhancing the overall sealing performance of the LED light board, improving the dustproof and moisture-proof effect of the LED light board, preventing external dust and liquid from accidentally accumulating inside the LED light board, and reducing the probability of reduced heat dissipation effect of the LED light board. At the same time, through the cooperation of the heat dissipation back cover, heat dissipation side plate, main heat dissipation groove and secondary heat dissipation groove, the overall heat dissipation area of ​​the LED light board can be effectively enhanced, thereby enhancing the overall heat dissipation effect of the LED light board, helping to reduce the probability of unexpected failure of internal components of the LED light board, and ensuring the service life of the LED light board. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 This is a side view of an embodiment of the present utility model.

[0014] Figure 3 This is a top view of an embodiment of the present utility model.

[0015] Figure 4 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A.

[0016] Figure 5 This is a schematic diagram of the heat dissipation back cover and heat dissipation side plate of an embodiment of the present utility model.

[0017] In the diagram: 1. Heat dissipation back cover; 2. LED lamp bead board; 3. Light guide plate; 4. Light transmission plate; 5. Main heat dissipation slot; 6. Fastening layer; 7. Limiting ring; 8. Clip; 9. Fixing plate; 10. Heat dissipation side plate; 11. Secondary heat dissipation slot; 12. Sealing layer; 13. Mounting frame; 14. Fastening plate; 15. Slot. Detailed Implementation

[0018] Reference Figures 1 to 5 As shown, this utility model provides a dustproof structure for an LED light board, including: a heat dissipation back cover 1, on the upper surface of which a heat dissipation side plate 10 and an LED light bead plate 2 are fixedly connected respectively, and a main heat dissipation groove 5 is symmetrically opened on the lower surface of the heat dissipation back cover 1. A limiting ring 7 is fixedly connected to the upper end of the inner side of the heat dissipation side plate 10, and a light guide plate 3 is movably connected to the upper surface of the limiting ring 7. A sealing groove is opened on the upper surface of the heat dissipation side plate 10, and a sealing layer 12 is fixedly connected in the sealing groove. At the same time, a light-transmitting plate 4 is fixedly connected to the inner side of the mounting frame 13, and a fixing plate 9 is symmetrically connected to the outer side of the mounting frame 13. A locking block 8 is fixedly connected to the end of the fixing plate 9 away from the mounting frame 13. The locking block 8 is fixedly connected in the slot 15 opened on the end face of the heat dissipation back cover 1, and a fastening layer 6 is connected to the position of the mounting frame 13 relative to the limiting ring 7. The fastening layer 6 abuts against the upper surface of the light guide plate 3, and a secondary heat dissipation groove 11 is symmetrically opened on the outer side of the heat dissipation side plate 10.

[0019] In this embodiment, the LED bead board 2 is fixedly connected to the upper surface of the heat dissipation back cover 1 using a common snap-fit ​​structure, while the light guide plate 3 is placed on the upper surface of the limiting ring 7. During the process of placing the mounting frame 13 on the upper surface of the heat dissipation side plate 10, the locking block 8 fixedly connected to the surface of the fixing plate 9 will slide against the outer side surface of the heat dissipation side plate 10. Then, when the fastening plate 14 and fastening layer 6 of the mounting frame 13 abut against the sealing layer 12 and the surface of the light guide plate 3 respectively, the locking block 8 on the surface of the fixing plate 9 can be precisely embedded into the slot 15 opened on the outer side surface of the heat dissipation back cover 1, thereby completing the fixation between the heat dissipation side plate 10 and the mounting frame 13. The fixed connection, and the pairing of the fastening layer 6 and the light guide plate 3 with the fastening plate 14 and the sealing layer 12, can effectively enhance the sealing of the connection between the heat dissipation side plate 10 and the mounting frame 13, thereby enhancing the overall dustproof and moisture-proof effect of the LED light board, ensuring that the LED lamp bead board 2 can dissipate heat normally. At the same time, the heat dissipation back cover 1 and the heat dissipation side plate 10 are both made of thermally conductive materials, and the opening of the main heat dissipation groove 5 and the secondary heat dissipation groove 11 can help increase the overall heat dissipation area of ​​the LED light board, improve the heat dissipation effect, thereby reducing the probability of unexpected failure of the internal components of the LED light board and extending its service life.

[0020] As a preferred embodiment, the heat dissipation back cover 1 has a rectangular structure. Multiple sets of main heat dissipation grooves 5 are opened parallel and evenly spaced along the length direction on the lower surface of the heat dissipation back cover 1, and the multiple sets of main heat dissipation grooves 5 are all semi-cylindrical structures. At the same time, the LED lamp bead board 2 is fixedly connected to the upper surface of the heat dissipation back cover 1 by a buckle.

[0021] In this embodiment, as Figure 1 and Figure 5 The opening of the main heat dissipation groove 5 can not only increase the heat dissipation area of ​​the lower surface of the heat dissipation cover 1, but also help reduce the overall weight and material usage of the heat dissipation cover 1, thereby helping to reduce the production cost of the LED light board.

[0022] In a preferred embodiment, the heat dissipation side plate 10 has a square cylindrical structure, the dimensions of the outer side of the heat dissipation side plate 10 are adapted to the dimensions of the outer side of the heat dissipation back cover 1, and the cross section formed by the heat dissipation side plate 10 and the heat dissipation back cover 1 is U-shaped.

[0023] In this embodiment, as Figure 1 and Figure 5 Both the heat dissipation side plate 10 and the heat dissipation back cover 1 are made of thermally conductive materials, such as aluminum alloy, which can help enhance the overall heat dissipation effect of the LED light board and reduce the overall weight of the LED light board.

[0024] In a preferred embodiment, multiple sets of secondary heat dissipation slots 11 are provided on the outer side of the heat dissipation side plate 10 at equal intervals along the height direction, and the multiple sets of secondary heat dissipation slots 11 are all in the shape of a square, while the cross-section of the secondary heat dissipation slots 11 is square.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 The opening of the secondary heat dissipation groove 11 can help increase the heat dissipation area of ​​the outer side of the heat dissipation side plate 10, thereby enhancing the heat dissipation effect of the heat dissipation side plate 10, and also helping to reduce the weight and material usage of the heat dissipation side plate 10, thus reducing the production cost of the LED light board.

[0026] In a preferred embodiment, the sealing groove on the upper surface of the heat dissipation side plate 10 has a U-shaped structure and the cross-section of the sealing groove has an isosceles trapezoidal structure. The limiting ring 7 fixedly connected to the inner side of the heat dissipation side plate 10 has a U-shaped structure, and the size of the inner cavity of the limiting ring 7 is larger than the size of the outer side of the LED lamp bead board 2.

[0027] In this embodiment, as Figure 1 , Figure 3 and Figure 5The sealing layer 12, which is fixedly connected in the sealing groove, can be made of soft rubber. The size of the sealing layer 12 and the sealing groove are compatible, which can help enhance the stability of the sealing layer 12 after installation. At the same time, the setting of the limiting ring 7 can help limit the movement range of the light guide plate 3 and improve the convenience of installation of the light guide plate 3.

[0028] In a preferred embodiment, the mounting frame 13 has a U-shaped structure. The dimensions of the outer side of the mounting frame 13 are adapted to the dimensions of the outer side of the heat dissipation side plate 10, while the dimensions of the inner side of the mounting frame 13 are smaller than the dimensions of the inner side of the heat dissipation side plate 10. The light-transmitting plate 4 fixedly connected to the inner side of the mounting frame 13 has a rectangular structure, and the fastening layer 6 fixedly connected to the lower surface of the mounting frame 13 has a U-shaped structure. The light guide plate 3 is fixedly connected to the upper surface of the limiting ring 7 through the fastening layer 6.

[0029] In this embodiment, as Figure 1 and Figure 5 The light-transmitting plate 4 ensures that the LED light panel has a good lighting effect and prevents external dust, liquids and insects from entering the LED light panel, reducing the chance of accidental damage to the internal components of the LED light panel. At the same time, the fastening layer 6 can be made of silicone material, which can help enhance the sealing of the fastening layer 6 at the contact point with the surface of the light guide plate 3.

[0030] In a preferred embodiment, a set of fixing plates 9 are fixedly connected to both ends of the outer side of the mounting frame 13. Both sets of fixing plates 9 are rectangular in shape, and the locking block 8 fixedly connected to the fixing plate 9 is a right-angled trapezoidal structure. Two sets of auxiliary grooves are symmetrically opened on both sides of the fixing plate 9 near the locking block 8. Both sets of auxiliary grooves are semi-cylindrical in shape. At the same time, a fastening plate 14 is connected to the lower surface of the mounting frame 13 relative to the sealing layer 12. The fastening plate 14 is U-shaped. Multiple sets of protruding strips are fixedly connected at equal intervals on the lower surface of the fastening plate 14. The protruding strips are in a U-shape overall and the cross-section of the protruding strips is semi-circular.

[0031] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 5 The fixing plate 9 can be made of a flexible material, which allows it to automatically return to its original position after bending. This ensures that the locking block 8 of the fixing plate 9 can be smoothly locked into the slot 15, so that the mounting frame 13 can be easily fixed to the surface of the heat dissipation side plate 10. At the same time, the structure of the fastening plate 14 can help enhance the sealing of the connection between the mounting frame 13 and the sealing layer 12, thereby enhancing the dustproof and moisture-proof effect of the LED light board connection and extending the service life of the LED light board.

Claims

1. A dustproof structure for an LED light panel, comprising: The heat dissipation back cover (1) is characterized in that: a heat dissipation side plate (10) and an LED lamp bead plate (2) are fixedly connected to the upper surface of the heat dissipation back cover (1), and a main heat dissipation groove (5) is symmetrically opened on the lower surface of the heat dissipation back cover (1). A limiting ring (7) is fixedly connected to the upper end of the inner side of the heat dissipation side plate (10), and a light guide plate (3) is movably connected to the upper surface of the limiting ring (7). A sealing groove is opened on the upper surface of the heat dissipation side plate (10), and a sealing layer (12) is fixedly connected in the sealing groove. At the same time, the inner side of the mounting frame (13) is fixedly connected to the sealing layer. A fixed light-transmitting plate (4) is fixedly connected to the outer side of the mounting frame (13), and a fixing plate (9) is symmetrically connected to the outer side of the mounting frame (13). The fixing plate (9) is fixedly connected to a card block (8) at the end away from the mounting frame (13). The card block (8) is fixedly connected to the slot (15) opened on the end face of the heat dissipation back cover (1). The position of the mounting frame (13) relative to the limiting ring (7) is connected to the fastening layer (6). The fastening layer (6) abuts against the upper surface of the light guide plate (3). The outer side of the heat dissipation side plate (10) is symmetrically opened with secondary heat dissipation slots (11).

2. The LED light panel dustproof structure according to claim 1, characterized in that, The heat dissipation cover (1) has a rectangular structure. Multiple sets of main heat dissipation grooves (5) are opened parallel and evenly spaced along the length direction on the lower surface of the heat dissipation cover (1). All sets of main heat dissipation grooves (5) have a semi-cylindrical structure. Meanwhile, the LED lamp bead board (2) is fixedly connected to the upper surface of the heat dissipation cover (1) by a buckle.

3. The LED light panel dustproof structure according to claim 1, characterized in that, The heat dissipation side plate (10) has a square cylindrical structure. The dimensions of the outer side of the heat dissipation side plate (10) are matched with the dimensions of the outer side of the heat dissipation back cover (1). The cross section formed by the heat dissipation side plate (10) and the heat dissipation back cover (1) is U-shaped.

4. The LED light panel dustproof structure according to claim 1, characterized in that, Multiple sets of secondary heat dissipation slots (11) are opened parallel and equally spaced along the height direction on the outer side of the heat dissipation side plate (10), and the multiple sets of secondary heat dissipation slots (11) are all in the shape of a square, while the cross-section of the secondary heat dissipation slots (11) is square.

5. The LED light panel dustproof structure according to claim 1, characterized in that, The sealing groove on the upper surface of the heat dissipation side plate (10) has a U-shaped structure and the cross section of the sealing groove has an isosceles trapezoidal structure. The limiting ring (7) fixedly connected to the inner side of the heat dissipation side plate (10) has a U-shaped structure, and the inner cavity of the limiting ring (7) is larger than the outer side of the LED lamp bead plate (2).

6. The LED light panel dustproof structure according to claim 1, characterized in that, The mounting frame (13) has a U-shaped structure. The dimensions of the outer side of the mounting frame (13) are compatible with the dimensions of the outer side of the heat dissipation side plate (10). The dimensions of the inner side of the mounting frame (13) are smaller than the dimensions of the inner side of the heat dissipation side plate (10). The light-transmitting plate (4) fixedly connected to the inner side of the mounting frame (13) has a rectangular structure. Meanwhile, the fastening layer (6) fixedly connected to the lower surface of the mounting frame (13) has a U-shaped structure. The light guide plate (3) is fixedly connected to the upper surface of the limiting ring (7) through the fastening layer (6).

7. The LED light panel dustproof structure according to claim 1, characterized in that, Two sets of fixing plates (9) are fixedly connected to the two ends of the outer side of the mounting frame (13). Both sets of fixing plates (9) are rectangular in shape, and the card block (8) fixedly connected to the fixing plate (9) is a right trapezoidal structure. Two sets of auxiliary grooves are symmetrically opened on both sides of the fixing plate (9) near the card block (8). Both sets of auxiliary grooves are semi-cylindrical in shape. At the same time, fastening plates (14) are connected to the lower surface of the mounting frame (13) relative to the sealing layer (12). The fastening plates (14) are U-shaped in shape. Multiple sets of protrusions are fixedly connected at equal intervals on the lower surface of the fastening plates (14). The protrusions are in the shape of a square, and the cross section of the protrusions is semi-circular.