Waterproof LED floodlight

By employing a multi-layered protective structure and a high-efficiency heat dissipation system in LED floodlights, the problem of poor waterproof and dustproof performance has been solved, improving the stability and lifespan of the luminaires and meeting the lighting needs of different scenarios.

CN224162557UActive Publication Date: 2026-04-24NINGBO RUIYAO PHOTOELECTRIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO RUIYAO PHOTOELECTRIC TECH CO LTD
Filing Date
2025-06-19
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing LED floodlights have poor waterproof and dustproof performance, and their sealing effect is not ideal, making them easily damaged. The sealing rings and sealant are prone to aging, leading to moisture intrusion and affecting the stability and lifespan of the lamps.

Method used

It adopts a multi-layered waterproof structure, including a waterproof top shell, an inner protective shell, a waterproof frame, and a water-blocking strip. It is fixedly connected to the insertion slot by a rubber sheet, combined with a sealing ring, explosion-proof transparent glass, and sealing columns to form a multi-layered seal. It separates the power supply and light source layout and sets up a heat dissipation plate and heat sink fins to form a high-efficiency heat dissipation system.

Benefits of technology

It improves the waterproof performance and stability of the lamps, extends their service life, ensures the safety of the power supply and light source, enhances heat dissipation efficiency, and meets the lighting needs of different scenarios.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a waterproof type LED floodlight which comprises a waterproof top shell and an inner protective shell, the bottom of the waterproof top shell is fixedly connected with a waterproof frame, the bottom of the inner protective shell is fixedly connected with the top of the inner surface of the waterproof frame, and the inner side of the top of the waterproof frame is fixedly connected with a water blocking strip. The inner surface and the outer surface of the water blocking strip are fixedly connected with a plurality of evenly-distributed rubber sheets, and the periphery of the lower portion of the inner wall of the waterproof top shell and the periphery of the lower portion of the outer surface of the inner protective shell are provided with a plurality of evenly-distributed insertion grooves. According to the utility model, the waterproof top shell, the inner protective shell, the waterproof frame and the waterproof strips are arranged to form a multi-layer waterproof structure; the sealing ring on the outer side of the bottom of the lampshade, the anti-explosion transparent glass on the inner side of the bottom of the lampshade and the sealing columns in the round holes in the periphery of the glass enable the whole light-emitting area to form a relatively independent waterproof space, it is guaranteed that the LED lamp panel works in a dry environment, and the service life of the LED lamp panel is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of LED floodlight technology, specifically a waterproof LED floodlight. Background Technology

[0002] In the field of modern lighting technology, LED floodlights are widely used in outdoor plazas, stadiums, industrial plants, roads and bridges due to their significant advantages such as high efficiency and energy saving, long lifespan, high brightness and fast response speed.

[0003] However, when using LED floodlights in outdoor settings, most LED floodlights on the market have poor waterproof and dustproof performance and unsatisfactory sealing effects, making the luminaires susceptible to damage. Rainwater and dust can easily enter the luminaire, affecting its normal use and lifespan. In addition, most waterproof LED floodlights rely on a single sealing ring or sealant for protection. During long-term use, the sealing ring is prone to aging and the sealant is prone to cracking, allowing moisture such as rainwater and fog to penetrate the luminaire, which can lead to short circuits, damage to LED beads, and other malfunctions, seriously affecting the luminaire's lifespan and stability.

[0004] Therefore, it is necessary to modify it by setting up a multi-layered waterproof structure, so that the waterproof components can be interlocked and cooperate to improve the protection effect on the inside of the lamp, reduce the impact of rubber aging on the protective performance, and further improve the waterproof effect of LED floodlights. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a waterproof LED floodlight. This floodlight features a multi-layered waterproof structure with interconnected waterproof components, enhancing the protection of the interior of the lamp and reducing the impact of rubber aging on protective performance. This further improves the waterproof effect of the LED floodlight and solves the problems of poor waterproof and dustproof performance, unsatisfactory sealing, susceptibility to damage, and reliance on single sealing rings or sealants for protection, resulting in poor overall protection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A waterproof LED floodlight, comprising a waterproof top shell and an inner protective shell. A waterproof frame is fixedly connected to the bottom of the waterproof top shell. The bottom of the inner protective shell is fixedly connected to the top of the inner surface of the waterproof frame. A water-blocking strip is fixedly connected to the inner side of the top of the waterproof frame. A plurality of evenly distributed rubber sheets are fixedly connected to both the inner and outer surfaces of the water-blocking strip. A plurality of evenly distributed insertion slots are formed around the lower perimeter of the inner wall of the waterproof top shell and around the lower perimeter of the outer surface of the inner protective shell. The surfaces of the rubber sheets are fixedly connected to the inner walls of the insertion slots. The top of the inner wall of the inner protective shell is fixedly connected to... The device includes a power supply box with a power cord electrically connected to its back. The rear end of the power cord extends through to the back of the waterproof top shell. An LED light board is fixedly connected to the lower part of the inner protective shell. The power supply box is electrically connected to the LED light board. A lampshade is fixedly connected to the bottom of the waterproof frame. A sealing ring is fixedly connected to the outer side of the bottom of the lampshade. An explosion-proof transparent glass is fixedly connected to the inner side of the bottom of the lampshade. Several evenly distributed circular holes are formed around the perimeter of the explosion-proof transparent glass. A sealing post is fixedly connected to the inside of each circular hole. The top of the sealing post is fixedly connected to the bottom of the lampshade, and the bottom of the sealing post is fixedly connected to the top of the inner side of the sealing ring.

[0007] As a preferred embodiment of this utility model, a heat dissipation plate is fixedly connected to the top of the inner protective shell, and a number of evenly distributed heat dissipation fins are fixedly connected to the top of the heat dissipation plate. The top of the heat dissipation fins extends through to the top of the waterproof top shell. A circular groove extending through the left and right is opened on both the front and back sides of the surface of the heat dissipation fins, and a heat dissipation pipe is fixedly connected inside the circular groove.

[0008] In a preferred embodiment of this invention, a first sealing sleeve is fixedly connected to the lower surface of the heat dissipation fins, and a second sealing sleeve is fixedly connected to the front surface of the power cord. The surfaces of the first and second sealing sleeves are both fixedly connected to the inner wall of the waterproof top shell.

[0009] As a preferred embodiment of this utility model, a mounting bracket is provided on the top of the waterproof top shell, and a number of evenly distributed mounting holes are opened on the top of the mounting bracket. A friction plate is fixedly connected to the top of the mounting bracket, and the surface of the friction plate is provided with friction texture.

[0010] As a preferred embodiment of this utility model, the waterproof top shell is fixedly connected to nut seats on both the left and right sides, and the bottom of both ends of the mounting bracket is provided with through holes, and an adjusting bolt is fitted inside the through hole. The inner end of the adjusting bolt is threadedly connected to the inner wall of the nut seat.

[0011] As a preferred embodiment of this utility model, waterproof rubber rings are fixedly connected to the top of all four sides of the outer surface of the lampshade, and the top of the waterproof rubber rings is fixedly connected to the bottom of the waterproof frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model constructs a multi-layered waterproof structure by setting up a waterproof top shell, an inner protective shell, a waterproof frame, and a water-blocking strip. The rubber sheets on the inner and outer surfaces of the water-blocking strip are fixedly connected to the insertion slots on the waterproof top shell and the inner protective shell, increasing the reliability of waterproofing. The rubber sheets are elastic and can tightly fit the inner wall of the insertion slot, effectively preventing water from entering the lamp from the connection point, providing the first waterproof barrier for the lamp, reducing the possibility of short circuits, LED chip damage, and other malfunctions caused by water intrusion, and improving the stability and service life of the lamp. The power box on the top of the inner wall of the inner protective shell is electrically connected to the LED light board below, and the power cord runs through to the back of the waterproof top shell. This layout reasonably separates the power supply and the light source while ensuring stability. A stable power supply is provided, with the power supply box located inside the inner protective shell, further preventing water corrosion of the power supply components, improving the safety and stability of the power supply, and ensuring the normal operation of the LED light board. The sealing ring on the outer side of the bottom of the lampshade, the explosion-proof transparent glass on the inner side, and the sealing posts in the round holes around the glass together form a sealed light-emitting area. The sealing ring can prevent moisture from seeping in from the bottom edge of the lampshade, the explosion-proof transparent glass can protect the LED light board from impacts from external objects, and ensure normal light transmission. The sealing posts strengthen the connection and sealing between the lampshade and the sealing ring, making the entire light-emitting area form a relatively independent waterproof space, ensuring that the LED light board works in a dry environment and extending the service life of the LED light board.

[0014] 2. This utility model forms a highly efficient heat dissipation system by setting a heat dissipation plate and heat sink fins on the top of the inner protective shell. The heat dissipation plate can quickly conduct the heat generated by the LED light board to the heat sink fins. The heat sink fins are evenly distributed and extend to the top of the waterproof top shell, increasing the contact area with the air and facilitating heat dissipation. At the same time, the heat dissipation pipes in the circular grooves on the front and back of the heat sink fin surface further improve the heat dissipation efficiency, can remove heat in time, reduce the internal temperature of the lamp, avoid problems such as decreased brightness and shortened life of LED beads due to excessive temperature, and improve the luminous performance and reliability of LED floodlights. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 2 This is a front view structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the front sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of this utility model.

[0019] In the diagram: 1. Waterproof top shell; 2. Inner protective shell; 3. Waterproof frame; 4. Water-blocking strip; 5. Rubber sheet; 6. Connecting slot; 7. Power supply box; 8. Power cord; 9. LED light board; 10. Lampshade; 11. Sealing ring; 12. Explosion-proof transparent glass; 13. Sealing column; 14. Heat spreader; 15. Heat dissipation fins; 16. Heat dissipation pipe; 17. First sealing sleeve; 18. Second sealing sleeve; 19. Mounting bracket; 20. Friction plate; 21. Nut seat; 22. Adjusting bolt; 23. Waterproof rubber ring. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 4 As shown, this utility model provides a waterproof LED floodlight, including a waterproof top shell 1 and an inner protective shell 2. A waterproof frame 3 is bolted to the bottom of the waterproof top shell 1. The bottom of the inner protective shell 2 is fixedly connected to the top of the inner surface of the waterproof frame 3. A water-blocking strip 4 is fixedly connected to the inner side of the top of the waterproof frame 3. A plurality of evenly distributed rubber sheets 5 are fixedly connected to both the inner and outer surfaces of the water-blocking strip 4. A plurality of evenly distributed insertion slots 6 are provided around the lower perimeter of the inner wall of the waterproof top shell 1 and around the lower perimeter of the outer surface of the inner protective shell 2. The surfaces of the rubber sheets 5 are fixedly connected to the inner walls of the insertion slots 6. A power supply box 7 is fixedly connected to the top of the inner wall of the inner protective shell 2. A power cord 8 is electrically connected to the back of the 7, and the rear end of the power cord 8 extends through to the back of the waterproof top shell 1. An LED light board 9 is fixedly connected to the lower part of the inner protective shell 2. The power box 7 is electrically connected to the LED light board 9. A lampshade 10 is fixedly connected to the bottom of the waterproof frame 3. A sealing ring 11 is fixedly connected to the outer side of the bottom of the lampshade 10. An explosion-proof transparent glass 12 is fixedly connected to the inner side of the bottom of the lampshade 10. Several evenly distributed round holes are opened around the circumference of the explosion-proof transparent glass 12, and a sealing post 13 is fixedly connected to the inside of the round hole. The top of the sealing post 13 is fixedly connected to the bottom of the lampshade 10, and the bottom of the sealing post 13 is fixedly connected to the top of the inner side of the sealing ring 11.

[0022] refer to Figure 3The top of the inner protective shell 2 is fixedly connected to a heat dissipation plate 14, and the top of the heat dissipation plate 14 is fixedly connected to a number of evenly distributed heat dissipation fins 15. The top of the heat dissipation fins 15 extends through to the top of the waterproof top shell 1. The front and rear sides of the surface of the heat dissipation fins 15 are provided with left and right through circular grooves, and heat dissipation pipes 16 are fixedly connected inside the circular grooves.

[0023] As a technical optimization of this utility model, a high-efficiency heat dissipation system is formed by setting a heat dissipation plate 14 and heat dissipation fins 15 on the top of the inner protective shell 2. The heat dissipation plate 14 can quickly conduct the heat generated by the LED light board 9 to the heat dissipation fins 15. The heat dissipation fins 15 are evenly distributed and extend to the top of the waterproof top shell 1, increasing the contact area with the air and facilitating heat dissipation. At the same time, the heat dissipation pipes 16 in the circular grooves on the front and back of the surface of the heat dissipation fins 15 further improve the heat dissipation efficiency, can remove heat in time, reduce the temperature inside the lamp, avoid problems such as decreased brightness and shortened life of LED beads due to excessive temperature, and improve the luminous performance and reliability of the LED floodlight.

[0024] refer to Figure 1 and Figure 4 A first sealing sleeve 17 is fixedly connected to the lower part of the surface of the heat dissipation fin 15, and a second sealing sleeve 18 is fixedly connected to the front of the surface of the power cord 8. The surfaces of the first sealing sleeve 17 and the second sealing sleeve 18 are both fixedly connected to the inner wall of the waterproof top shell 1.

[0025] As a technical optimization of this utility model, by setting a first sealing sleeve 17 and a second sealing sleeve 18, key sealing protection is provided for the parts where the heat dissipation fins 15 and the power cord 8 pass through the waterproof top shell 1. This effectively fills the gap between the components and the waterproof top shell 1, preventing external moisture and dust from entering the interior of the lamp through these parts. This further enhances the sealing performance of the waterproof top shell 1, ensuring that the internal circuits and components of the lamp are not affected by the external environment, guaranteeing the normal operation and service life of the lamp, and also improving the reliability of the lamp in humid and dusty environments.

[0026] refer to Figure 2 A mounting bracket 19 is provided on the top of the waterproof top shell 1. The top of the mounting bracket 19 has a number of evenly distributed mounting holes. A friction plate 20 is fixedly connected to the top of the mounting bracket 19. The surface of the friction plate 20 is provided with friction texture.

[0027] As a technical optimization of this utility model, by setting up the mounting bracket 19, the mounting holes on its top make it convenient for users to install the lamps in different locations, such as walls and ceilings, thus improving the installation flexibility of the lamps; by setting up the friction plate 20 and the friction texture on its surface, the friction force during installation is increased, making the lamps more stable during installation, less prone to sliding or displacement, ensuring the accuracy and firmness of the installation, and also providing safety for subsequent use.

[0028] refer to Figure 2 Nut seats 21 are fixedly connected to both sides of the waterproof top shell 1. Through holes are opened at the bottom of both ends of the mounting bracket 19, and adjusting bolts 22 are fitted inside the through holes. The inner end of the adjusting bolts 22 is threadedly connected to the inner wall of the nut seats 21.

[0029] As a technical optimization of this utility model, by setting the nut seats 21 on the left and right sides of the waterproof top shell 1 to cooperate with the adjusting bolts 22 in the bottom round holes at both ends of the mounting bracket 19, the user can adjust the angle of the lamp by rotating the adjusting bolts 22. The adjustable design allows the lamp to adjust the illumination angle according to actual needs, meet the lighting requirements of different scenarios, and improve the applicability and practicality of the lamp.

[0030] refer to Figure 3 Waterproof rubber rings 23 are fixedly connected to the top of all four sides of the outer surface of the lampshade 10, and the top of the waterproof rubber rings 23 is fixedly connected to the bottom of the waterproof frame 3.

[0031] As a technical optimization of this utility model, by setting a waterproof rubber ring 23 on the upper periphery of the outer surface of the lampshade 10 and fixing it to the bottom of the waterproof frame 3, the sealing between the lampshade 10 and the waterproof frame 3 is further enhanced; the waterproof rubber ring 23 can fill the gap between the lampshade 10 and the waterproof frame 3, prevent water from seeping into the lamp from the side, provide additional waterproof protection for the lamp, and improve the overall waterproof performance of the lamp.

[0032] The working principle and usage process of this utility model are as follows: In use, the power supply box 7 is connected to an external power source through the power cord 8 to obtain electrical energy. The power supply box 7 transmits electrical energy to the LED light board 9, and the LED beads in the LED light board 9 emit light after being powered on. As a high-efficiency light-emitting element, the LED beads can convert electrical energy into light energy and project the light outward through the explosion-proof transparent glass 12 inside the lamp cover 10 to achieve the lighting function. Its light-emitting process is highly efficient and energy-saving, and the response speed is fast, providing stable lighting for the usage scenario. The waterproof top shell 1 and the inner protective shell 2 are connected by the waterproof frame 3. The rubber sheets 5 on the inner and outer surfaces of the water-blocking strip 4 are tightly fitted with the insertion slots 6 on the waterproof top shell 1 and the inner protective shell 2 to form a sealed structure, preventing moisture from entering the lamp from the top and sides. The sealing ring 11 at the bottom of the lampshade 10, the sealing posts 13 in the circular holes around the explosion-proof transparent glass 12, and the waterproof rubber ring 23 on the upper perimeter of the outer surface of the lampshade 10 further enhance the sealing of the bottom and sides of the lamp, preventing moisture from entering the light-emitting area of ​​the lamp. The overall structural design creates a relatively independent space inside the lamp, with tight connections between various components, reducing the channels for moisture to enter and providing reliable waterproof protection for the electrical components and LED light board 9 inside the lamp. When the LED light board 9 is working, it generates heat. The heat dissipation plate 14 on the top of the inner protective shell 2 can quickly absorb the heat generated by the LED light board 9 and conduct the heat to the heat dissipation fins 15 on the top. The heat dissipation fins 15 are numerous and evenly distributed, increasing the contact area with air and facilitating heat dissipation. The heat dissipation pipes 16 in the circular grooves on the surface of the heat dissipation fins 15 further improve the heat dissipation efficiency, dissipating heat to the external environment in a timely manner, ensuring that the lamp works within the normal temperature range, and avoiding the impact of excessive temperature on the performance and lifespan of the LED beads.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof LED floodlight, comprising a waterproof top shell (1) and an inner protective shell (2), characterized in that: A waterproof frame (3) is fixedly connected to the bottom of the waterproof top shell (1). The bottom of the inner protective shell (2) is fixedly connected to the top of the inner surface of the waterproof frame (3). A water-blocking strip (4) is fixedly connected to the inner side of the top of the waterproof frame (3). A number of evenly distributed rubber sheets (5) are fixedly connected to the inner and outer surfaces of the water-blocking strip (4). A number of evenly distributed insertion slots (6) are opened around the bottom of the inner wall of the waterproof top shell (1) and around the bottom of the outer surface of the inner protective shell (2). The surface of the rubber sheet (5) is fixedly connected to the inner wall of the insertion slot (6). A power box (7) is fixedly connected to the top of the inner wall of the inner protective shell (2). A power cord (8) is electrically connected to the back of the power box (7). The rear end extends to the back of the waterproof top shell (1). An LED light board (9) is fixedly connected to the lower part of the inner protective shell (2). The power box (7) is electrically connected to the LED light board (9). A lampshade (10) is fixedly connected to the bottom of the waterproof frame (3). A sealing ring (11) is fixedly connected to the outer side of the bottom of the lampshade (10). An explosion-proof transparent glass (12) is fixedly connected to the inner side of the bottom of the lampshade (10). Several evenly distributed round holes are opened around the explosion-proof transparent glass (12). A sealing column (13) is fixedly connected inside the round hole. The top of the sealing column (13) is fixedly connected to the bottom of the lampshade (10). The bottom of the sealing column (13) is fixedly connected to the top of the inner side of the sealing ring (11).

2. A waterproof LED floodlight according to claim 1, characterized in that: The top of the inner protective shell (2) is fixedly connected to a heat dissipation plate (14), and the top of the heat dissipation plate (14) is fixedly connected to a number of evenly distributed heat dissipation fins (15). The top of the heat dissipation fins (15) extends through to the top of the waterproof top shell (1). The front and back sides of the surface of the heat dissipation fins (15) are provided with circular grooves that extend from left to right, and heat dissipation pipes (16) are fixedly connected inside the circular grooves.

3. A waterproof LED floodlight according to claim 2, characterized in that: A first sealing sleeve (17) is fixedly connected to the lower part of the surface of the heat dissipation fins (15), and a second sealing sleeve (18) is fixedly connected to the front of the surface of the power cord (8). The surfaces of the first sealing sleeve (17) and the second sealing sleeve (18) are both fixedly connected to the inner wall of the waterproof top shell (1).

4. A waterproof LED floodlight according to claim 3, characterized in that: A mounting bracket (19) is provided above the waterproof top shell (1). The top of the mounting bracket (19) has a number of evenly distributed mounting holes. A friction plate (20) is fixedly connected to the top of the mounting bracket (19). The surface of the friction plate (20) is provided with friction patterns.

5. A waterproof LED floodlight according to claim 4, characterized in that: Nut seats (21) are fixedly connected to both the left and right sides of the waterproof top shell (1). Through holes are opened at the bottom of both the left and right ends of the mounting bracket (19), and adjusting bolts (22) are fitted inside the through holes. The inner end of the adjusting bolts (22) is threadedly connected to the inner wall of the nut seats (21).

6. A waterproof LED floodlight according to claim 5, characterized in that: Waterproof rubber rings (23) are fixedly connected to the top of all four sides of the outer surface of the lampshade (10), and the top of the waterproof rubber rings (23) is fixedly connected to the bottom of the waterproof frame (3).