Waterproof and dustproof LED module suitable for severe environment
By combining the design of protective and ventilation structures, the problem of waterproofing and dustproofing of LED modules in harsh environments is solved, improving sealing and heat dissipation efficiency, extending service life and maintaining luminous effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-17
AI Technical Summary
Existing LED modules have poor waterproof and dustproof performance in harsh environments, leading to moisture penetration and dust accumulation, which affects their lifespan and luminous effect.
The design employs a combination of protective and ventilation structures, including a sealing plate, waterproof and dustproof strips, a transparent protective plate, ventilation slots, a shielding net, a dust filter, and a waterproof and breathable membrane. This forms a reliable sealing barrier while allowing air circulation, preventing moisture and dust from entering. At the same time, heat dissipation efficiency is improved through heat dissipation fins and positioning columns.
It effectively prevents moisture and dust from entering, extends the life of the LED module, ensures the luminous effect, improves heat dissipation efficiency, and ensures the stable operation of the LED module in harsh environments.
Smart Images

Figure CN224003674U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED lighting technology, and in particular to a waterproof and dustproof LED module suitable for harsh environments. Background Technology
[0002] LED modules are among the most widely used LED products. They vary greatly in structure and electronics. A simple LED module consists of a circuit board containing LEDs and a housing. More complex modules include controls, constant current sources, and related heat dissipation treatments to improve LED lifespan and luminous intensity. As a common lighting device, they are widely used in various scenarios. However, in harsh environments such as outdoor construction sites, mines, and seaside locations, LED modules face severe challenges.
[0003] Existing LED modules do not have waterproof and dustproof properties, which makes them prone to reduced lifespan.
[0004] An existing patent (publication number: CN218469046U) discloses a waterproof and dustproof LED module. This utility model shows that the existing LED module does not have waterproof and dustproof effects, which makes the LED module prone to reduced lifespan.
[0005] To address the aforementioned issues, existing patents offer solutions. However, current LED modules generally still suffer from poor waterproof and dustproof performance when used in harsh environments. In terms of waterproofing, traditional sealing structures have significant flaws, making it difficult to withstand heavy rain and high humidity. Once exposed to such harsh conditions, moisture can easily seep into the LED module, causing short circuits in the LED board's electronic components, damaging the components, and reducing their lifespan. In terms of dustproofing, tiny particles such as dust and sand can easily enter the module through its gaps and accumulate on the LED board. These accumulated particles not only hinder heat dissipation and reduce heat dissipation efficiency but also interfere with light transmission, affecting the luminous effect and ultimately leading to a decline in lighting quality.
[0006] To address this, a waterproof and dustproof LED module suitable for harsh environments is proposed. Utility Model Content
[0007] The purpose of this invention is to provide a waterproof and dustproof LED module suitable for harsh environments. This addresses the common problem of poor waterproof and dustproof performance of existing LED modules in harsh environments. Regarding waterproofing, traditional sealing structures have significant drawbacks, making them vulnerable to heavy rain and high humidity. Under such conditions, moisture easily penetrates the LED module, causing short circuits in the LED board's electronic components, damaging them, and reducing their lifespan. Furthermore, regarding dustproofing, fine particles such as dust and sand can easily enter the module through gaps and accumulate on the LED board. These accumulated particles not only hinder heat dissipation and reduce heat dissipation efficiency but also interfere with light transmission, affecting the luminous effect and ultimately leading to a decline in lighting quality.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and dustproof LED module suitable for harsh environments, comprising a housing, an LED light board disposed inside the housing, a protective structure disposed on the top of the housing, the protective structure being located on top of the LED light board, and ventilation structures disposed on both the front and rear sides of the housing;
[0009] The protective structure includes a sealing plate disposed on the top of the outer shell. The sealing plate is located on top of the LED light panel. A fixing groove is provided at the bottom of the sealing plate. Waterproof and dustproof strips are embedded in the top side of the fixing groove and the top of the outer shell. A transparent protective plate is slidably connected inside the fixing groove. The transparent protective plate is located inside the waterproof and dustproof strips and is located on top of the LED light panel.
[0010] Preferably, the ventilation structure includes ventilation slots formed on the front and rear sides of the housing, and a shielding net is snapped onto the outer side of the ventilation slot.
[0011] Preferably, a dust filter is fixedly connected in the middle of the ventilation slot, and the dust filter is located inside the shielding net.
[0012] Preferably, a waterproof and breathable membrane is fixedly connected to the inner side of the ventilation slot, and the waterproof and breathable membrane is located inside the dust filter.
[0013] Preferably, the LED light panel has holes and slots at the four corners of its bottom, and the four corners of the bottom side of the inner shell are fixedly connected to positioning posts, with the top of the positioning posts inserted into the holes and slots.
[0014] Preferably, a support plate is fixedly connected to the outside of the positioning post, the support plate is located outside the bottom of the slot, and the top of the support plate is in contact with the bottom of the LED light panel.
[0015] Preferably, a heat dissipation fin is fixedly connected to the bottom of the housing, and the heat dissipation fin is located at the bottom of the LED light panel.
[0016] Preferably, a waterproof gasket is fixedly connected to the inner side of the sealing plate, and the bottom of the waterproof gasket contacts the top of the transparent protective plate.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This application, by setting up a protective structure, fixes a sealing plate on the top of the outer shell. The waterproof and dustproof strips embedded in the bottom fixing groove of the sealing plate and the top of the outer shell tightly wrap the transparent protective plate, effectively preventing the intrusion of moisture in heavy rain and high humidity environments, avoiding damage to the electronic components of the LED light board due to short circuits. At the same time, it blocks the entry of dust, sand and other small particles, preventing them from accumulating on the LED light board, thereby extending the service life of the LED module and ensuring the luminous effect and lighting quality. In addition, when it is necessary to inspect the LED light board inside the outer shell, the tightly wrapped transparent protective plate can be pulled out with tools, which is more convenient than the traditional method of unscrewing.
[0019] 2. By setting up a ventilation structure on the front and rear sides of the housing, this application can achieve air circulation inside the housing while ensuring waterproofing and dustproofing. This helps to dissipate the heat generated by the LED light board in a timely manner, further improving heat dissipation efficiency and maintaining the stable operation of the LED light board. Attached Figure Description
[0020] Figure 1 This is an overall structural diagram of the waterproof and dustproof LED module of this utility model, suitable for harsh environments;
[0021] Figure 2 This is a structural diagram of the outer shell of this utility model;
[0022] Figure 3 This is a structural diagram of the protective structure of this utility model;
[0023] Figure 4 This is a structural diagram of the ventilation structure of this utility model;
[0024] Figure 5 This is a structural diagram of the positioning column of this utility model.
[0025] In the diagram: 1. Outer shell; 2. LED light panel; 3. Protective structure; 31. Sealing plate; 32. Fixing groove; 33. Waterproof and dustproof strip; 34. Transparent protective plate; 4. Ventilation structure; 41. Ventilation slot; 42. Shielding net; 43. Dust filter net; 44. Waterproof and breathable membrane; 5. Positioning post; 6. Support plate; 7. Heat dissipation fins; 8. Waterproof gasket. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-5 The present invention provides the following technical solution:
[0028] A waterproof and dustproof LED module suitable for harsh environments includes a housing 1, an LED light board 2 is disposed inside the housing 1, a protective structure 3 is disposed on the top of the housing 1, the protective structure 3 is located on the top of the LED light board 2, and ventilation structures 4 are disposed on the front and rear sides of the housing 1.
[0029] The protective structure 3 includes a sealing plate 31 disposed on the top of the outer shell 1. The sealing plate 31 is located on the top of the LED light panel 2. A fixing groove 32 is provided at the bottom of the sealing plate 31. Waterproof and dustproof adhesive strips 33 are embedded in the top side of the fixing groove 32 and the top of the outer shell 1. A transparent protective plate 34 is slidably connected inside the fixing groove 32. The transparent protective plate 34 is located inside the waterproof and dustproof adhesive strips 33 and is located on the top of the LED light panel 2.
[0030] In this embodiment: by setting up a protective structure 3 and a ventilation structure 4, the transparent protective plate 34 is tightly wrapped in the bottom fixing groove 32 and the waterproof and dustproof adhesive strip 33 on the top of the outer shell 1 through the sealing plate 31. In harsh environments, such as heavy rain or high humidity weather, this structure can form a reliable sealing barrier to prevent moisture from penetrating into the interior of the outer shell 1, avoiding short circuit damage to the electronic components of the LED light board 2 due to contact with moisture. At the same time, it can also block the entry of dust, sand and other small particles, preventing them from accumulating on the LED light board 2 and affecting heat dissipation and light emission. Moreover, when the LED light board 2 needs to be repaired, the transparent protective plate 34 can be pulled out with tools, which is more convenient than the traditional method of unscrewing. The ventilation structure 4 is set on the front and rear sides of the outer shell 1. While ensuring the waterproof and dustproof effect of the protective structure 3, it realizes the circulation of air inside the outer shell 1, so that the heat generated by the LED light board 2 during operation can be dissipated in time with the help of air flow, improving heat dissipation efficiency, ensuring that the LED light board 2 operates in a stable temperature environment, and further improving the overall reliability and service life.
[0031] Specifically, such as Figure 4 As shown, the ventilation structure 4 includes ventilation slots 41 opened on the front and rear sides of the outer shell 1, and a shielding net 42 is snapped onto the outer side inside the ventilation slot 41.
[0032] Specifically, such as Figure 4 As shown, a dust filter 43 is fixedly connected in the middle of the ventilation slot 41, and the dust filter 43 is located inside the shielding net 42.
[0033] Specifically, such as Figure 4 As shown, a waterproof and breathable membrane 44 is fixedly connected to the inner side of the ventilation slot 41, and the waterproof and breathable membrane 44 is located inside the dust filter 43.
[0034] In this embodiment: by setting a ventilation structure 4, the ventilation slots 41 are opened on the front and rear sides of the outer shell 1 to provide channels for air circulation. The outer shielding net 42 can block larger debris from entering the ventilation slots 41 and prevent them from blocking the channels. The middle dust filter net 43 can further filter dust, sand and other small particles, reducing the amount of dust entering the interior of the outer shell 1. The inner waterproof and breathable membrane 44 ensures normal air circulation while preventing moisture intrusion and avoiding damage to the LED light board 2 due to moisture. This achieves air circulation inside the outer shell 1 under the premise of waterproofing and dustproofing, and improves heat dissipation efficiency.
[0035] Specifically, such as Figure 5 As shown, the LED light board 2 has holes and slots at the four corners of its bottom, and the four corners of the bottom side of the housing 1 are fixedly connected to positioning posts 5, with the top of the positioning posts 5 inserted into the holes and slots.
[0036] Specifically, such as Figure 5 As shown, a support plate 6 is fixedly connected to the outside of the positioning post 5. The support plate 6 is located on the outside of the bottom of the slot, and the top of the support plate 6 is in contact with the bottom of the LED light panel 2.
[0037] In this embodiment: by setting positioning posts 5 and bearing plates 6, and by inserting the top of the positioning posts 5 into the slots at the four corners of the bottom of the LED light panel 2, the position of the LED light panel 2 inside the housing 1 can be accurately determined, preventing displacement or shaking during use. The bearing plates 6 are located outside the bottom of the slots and their top contacts the bottom of the LED light panel 2, providing stable support for the LED light panel 2, enhancing the stability of the LED light panel 2 installation, and ensuring its normal operation.
[0038] Specifically, such as Figure 5 As shown, a heat dissipation fin 7 is fixedly connected to the bottom of the outer casing 1, and the heat dissipation fin 7 is located at the bottom of the LED light board 2.
[0039] Specifically, such as Figure 5 As shown, a waterproof gasket 8 is fixedly connected to the inner side of the sealing plate 31, and the bottom of the waterproof gasket 8 is in contact with the top of the transparent protective plate 34.
[0040] In this embodiment: by setting heat dissipation fins 7 and waterproof gaskets 8, the heat dissipation fins 7 are fixed at the bottom of the outer shell 1 and located below the LED light board 2, which can increase the heat dissipation area and quickly dissipate the heat generated by the LED light board 2, maintaining a suitable working temperature for the LED light board 2. In addition, the bottom of the waterproof gasket 8 on the inner side of the sealing plate 31 contacts the top of the transparent protective plate 34, which further enhances the sealing performance, better prevents moisture and dust from entering the interior of the outer shell 1, and ensures the normal operation and service life of the LED light board 2.
[0041] Working Principle: In the use of waterproof and dustproof LED modules suitable for harsh environments, firstly, the sealing plate 31 is fixed to the top of the housing 1. The bottom fixing groove 32 and the waterproof and dustproof adhesive strip 33 on the top of the housing 1 tightly wrap the transparent protective plate 34. In harsh environments such as heavy rain and high humidity, this forms a reliable sealing barrier, effectively preventing moisture from seeping into the housing 1 and avoiding short circuits and damage to the electronic components of the LED light board 2 due to moisture. It also blocks dust, sand, and other small particles from entering, preventing their accumulation on the LED light board 2 and affecting heat dissipation and light emission. When the LED light board 2 needs maintenance, the transparent protective plate 34 can be pulled out using tools, making operation simple. Regarding ventilation, the ventilation slots 41 on the front and rear sides of the housing 1 provide channels for air circulation, while the outer shielding mesh 42 blocks larger impurities. Material enters the ventilation slot 41 to prevent blockage. The dust filter 43 in the middle further filters out fine particles, reducing the amount of dust entering the interior. The waterproof and breathable membrane 44 on the inner side ensures normal air circulation while preventing moisture intrusion, thus preventing the LED light board 2 from getting damp. Air flows in the ventilation slot 41, dissipating the heat generated by the LED light board 2 in a timely manner and improving heat dissipation efficiency. The top of the positioning post 5 is inserted into the slots at the four corners of the bottom of the LED light board 2 to accurately determine its position and prevent displacement or shaking during use. The support plate 6 provides stable support for the LED light board 2. The heat dissipation fins 7 and waterproof gaskets 8 further enhance the heat dissipation effect and waterproof performance. The whole system works together to achieve waterproof and dustproof and efficient heat dissipation in harsh environments, ensuring the normal operation of the LED light board 2 and extending its overall service life.
[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A waterproof and dustproof LED module suitable for harsh environments, comprising a housing (1), characterized in that: The inside of the shell (1) is provided with an LED lamp plate (2), the top of the shell (1) is provided with a protective structure (3), the protective structure (3) is located on the top of the LED lamp plate (2), and the front side and the rear side of the shell (1) are provided with ventilation structures (4). The protective structure (3) includes a sealing plate (31) arranged on the top of the shell (1), the sealing plate (31) is located on the top of the LED lamp plate (2), the bottom of the sealing plate (31) is provided with a fixed groove (32), the top side of the inside of the fixed groove (32) and the top of the shell (1) are both embedded with waterproof and dustproof rubber strips (33), the inside of the fixed groove (32) is slidably connected with a transparent protective plate (34), the transparent protective plate (34) is located on the inner side of the waterproof and dustproof rubber strip (33), and the transparent protective plate (34) is located on the top of the LED lamp plate (2). 2.The waterproof and dustproof LED module for harsh environments according to claim 1, characterized in that: The ventilation structure (4) includes a ventilation groove (41) formed on the front side and the rear side of the shell (1), and the outer side of the inside of the ventilation groove (41) is clamped with a shielding net (42). 3.The waterproof and dustproof LED module for harsh environments according to claim 2, characterized in that: The middle of the inside of the ventilation groove (41) is fixedly connected with a dust filter net (43), and the dust filter net (43) is located on the inner side of the shielding net (42).
4. The waterproof and dustproof LED module suitable for harsh environments according to claim 3, characterized in that: The inner side of the inside of the ventilation groove (41) is fixedly connected with a waterproof and breathable film (44), and the waterproof and breathable film (44) is located on the inner side of the dust filter net (43). 5.The waterproof and dustproof LED module for harsh environments of claim 1, wherein: The four corners of the bottom of the LED lamp plate (2) are provided with hole grooves, the four corners of the bottom of the inside of the shell (1) are fixedly connected with positioning columns (5), and the top of the positioning column (5) is inserted into the hole groove. 6.The waterproof and dustproof LED module for harsh environments according to claim 5, characterized in that: The outer side of the positioning column (5) is fixedly connected with a bearing disc (6), the bearing disc (6) is located on the outer side of the bottom of the hole groove, and the top of the bearing disc (6) is in contact with the bottom of the LED lamp plate (2). 7.The waterproof and dustproof LED module for harsh environments of claim 1, wherein: The bottom of the shell (1) is fixedly connected with a heat dissipation fin (7), and the heat dissipation fin (7) is located on the bottom of the LED lamp plate (2). 8.The waterproof and dustproof LED module for harsh environments of claim 1, wherein: The inner side of the sealing plate (31) is fixedly connected with a waterproof sealing pad (8), and the bottom of the waterproof sealing pad (8) is in contact with the top of the transparent protective plate (34).
Citation Information
Patent Citations
Waterproof and dustproof LED module
CN218469046U