Modularized waterproof structure of street lamp light source
By introducing modular design and waterproof wall structure into LED street lights, the waterproof failure problem caused by aging of seal rings is solved, double-layer waterproofing and convenient maintenance are achieved, and maintenance costs are reduced.
Patent Information
- Application Number
- CN202422561560.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The sealing rings of existing LED street lights are prone to aging and cracking, resulting in failure of the waterproof structure, affecting the use of street lights, and the maintenance process is complex and costly.
The modular design adopts a water barrier wall and a sealing ring are set up between the lens fixing plate and the heat dissipation substrate. Double-layer waterproofing is achieved through screw connections. When the sealing ring fails, the water barrier wall continues to be waterproof. The modular design of the light source is easy to replace.
It achieves double-layer waterproofing, reduces maintenance costs and complexity, and extends the service life of street lights.
Smart Images
Figure CN223153529U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of road lighting, and particularly relates to a modular waterproof structure for a road lamp light source. Background Art
[0002] At present, the main types of road lamps include sodium lamp road lamps, energy-saving road lamps (including trichromatic flat-leaf lamps and electrodeless lamps), LED road lamps, and new xenon road lamps, etc. Road lamps are installed in outdoor public areas and are extremely vulnerable to weather factors. Therefore, the protection level requirements for road lamps are relatively high. In recent years, with the rapid development of LED light sources in the lighting field, and with their advantages of long life, low energy consumption, and environmental friendliness, they have been widely used in indoor and outdoor lighting. Especially in the field of road lighting, LED road lamps have generally replaced traditional high-pressure sodium lamps.
[0003] Generally, in an LED road lamp, it usually includes a housing and an LED light source module arranged inside the housing. The LED light source module, as the most important structure of the LED road lamp, mainly includes a light source, a lens group, and a heat dissipation component. The waterproof structure between the heat dissipation component and the lens group is usually composed of screws and sealing rings. The lens group and the heat dissipation component are connected by screws, and the sealing ring between the heat dissipation component and the lens group is extruded by tightening the screws. The gap between the heat dissipation component and the lens group is sealed by the deformation of the sealing ring. However, affected by external factors such as temperature, the sealing ring will age and crack after long-term use, resulting in the failure of the original waterproof layer, water ingress and moisture absorption at the connection, thus affecting the use of the road lamp.
[0004] In view of the above existing technologies, the applicant has made a beneficial design, and the technical solution to be introduced below is generated under this background. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a modular waterproof structure for a road lamp light source, which has a simple and reasonable structure, can achieve double-layer waterproofing, and is beneficial to production and maintenance.
[0006] The purpose of the utility model is achieved in this way. A modular waterproof structure for a road lamp light source, the road lamp includes a plurality of light source modules, the light source module includes a lens group, a radiator, and a sealing ring. The lens group includes a lens fixing plate, the upper surface of the lens fixing plate is provided with lenses in an array, a light source is arranged inside the lens, the radiator includes a heat dissipation substrate and a plurality of heat dissipation fins located below the heat dissipation substrate. The lens fixing plate is located above the heat dissipation substrate. A water retaining wall is formed at the bottom of the lens fixing plate and around the edge of the lens array. The heat dissipation substrate is provided with a groove on the upper surface corresponding to the water retaining wall. The sealing ring is embedded in the groove. When the lens group and the radiator are connected and installed, the bottom of the water retaining wall is pressed into the groove to compress the sealing ring.
[0007] In a specific embodiment of the present utility model, the water retaining wall and the lens fixing plate are integrally formed parts.
[0008] In another specific embodiment of the present utility model, the water retaining wall is a PC plastic enclosure.
[0009] In yet another specific embodiment of the present utility model, screw holes are spaced apart along the four peripheral edges of the lens fixing plate, and connection holes corresponding to the screw holes are provided on the heat dissipation substrate. Screws sequentially pass through the screw holes and the connection holes from top to bottom to fix the lens fixing plate and the heat dissipation substrate. When the screws are tightened downward, the water retaining wall presses against the sealing ring to achieve a sealed connection between the lens fixing plate and the heat dissipation substrate.
[0010] In still another specific embodiment of the present utility model, the sealing ring is a foamed silica gel sealing ring.
[0011] In still another specific embodiment of the present utility model, the heat dissipation fins are arranged uniformly in straight strips.
[0012] Due to the adoption of the above structure, the present utility model has the following beneficial effects compared with the prior art: A water retaining wall is added behind the original sealing ring installation position, so that even if the sealing ring fails, water cannot enter the light source, thereby realizing double-layer waterproofing and greatly enhancing the waterproof effect of the lamp; By splitting and modularizing the LED street lamp light source and performing separate waterproof design on the light source module in groups, when replacing the light source in the later stage, it can be replaced group by group without disassembling the light source and damaging the original waterproof structure, nor removing the entire lamp from the lamp post, greatly reducing the later maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is an exploded view of the overall structure of the present utility model;
[0014] Figure 2 is a bottom view of the lens group of the present utility model;
[0015] Figure 3 is a structural view of the radiator of the present utility model;
[0016] Figure 4 is an overall cross-sectional view of the present utility model;
[0017] Figure 5 is Figure 4 an enlarged view of part A.
[0018] In the figure: 1. lens group, 11. lens fixing plate, 111. water retaining wall, 112. screw hole, 12. lens, 13. light source, 14. screw; 2. radiator, 21. heat dissipation substrate, 211. groove, 212. connection hole, 22. heat dissipation fins; 3. sealing ring. Detailed implementation mode
[0019] The following describes in detail the specific implementation mode of the present utility model in conjunction with the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any change in form rather than substance based on the concept of the present utility model should be regarded as the protection scope of the present utility model.
[0020] In the following description, all concepts related to directions (or orientations) such as up, down, left, right, front, and back are with respect to the position state of the figure being described, aiming to facilitate public understanding. Therefore, they cannot be understood as special limitations on the technical solution provided by the present utility model.
[0021] The present utility model relates to a modular waterproof structure for a street lamp light source. The street lamp adopts an LED light source. Since the larger the area of the light source, the greater the difficulty of waterproof design, this solution disassembles and modularizes the LED street lamp light source, and conducts separate waterproof design for the light source module in groups.
[0022] As Figure 1 shown, the street lamp includes a plurality of light source modules. The light source module includes a lens group 1, a radiator 2, and a sealing ring 3. The lens group 1 includes a lens fixing plate 11. A plurality of lenses 12 are arranged in an array on the upper surface of the lens fixing plate 11. A light source 13 (here is an LED light source) is arranged in each lens 12. The radiator 2 includes a heat dissipation substrate 21 and a plurality of heat dissipation fins 22 located below the heat dissipation substrate 21. The heat dissipation fins 22 are arranged evenly in a straight strip shape. The lens fixing plate 11 is located above the heat dissipation substrate 21.
[0023] See Figures 2 to 5 , the design key point of this solution is that a downward extending water retaining wall 111 is formed at the bottom of the lens fixing plate 11 and around the edge of the array of lenses 12. Preferably, the water retaining wall 111 and the lens fixing plate 11 are integrally formed of PC material. The heat dissipation substrate 21 is provided with a groove 211 on the upper surface corresponding to the water retaining wall 111.
[0024] The lens fixing plate 11 is provided with screw holes 112 at intervals along the four peripheries. Connection holes 212 corresponding to the screw holes 112 are provided on the heat dissipation substrate 21. Screws 14 sequentially pass through the screw holes 112 and the connection holes 212 from top to bottom to connect and fix the lens fixing plate 11 and the heat dissipation substrate 21.
[0025] The sealing ring 3 is made of foamed silica gel. The sealing ring 3 is embedded in the groove 211. When the screw 14 is tightened downward, the bottom of the water retaining wall 111 is pressed into the groove 211 to compress the sealing ring 3. Through the structure of the sealing ring 3 combined with the water retaining wall 111, the gap between the radiator 2 and the lens group 1 is effectively sealed. After the sealing ring 3 is installed in place, the water retaining wall 111 is added, so that even if the sealing ring 3 fails, water cannot enter the light source 13. This double-layer waterproof structure greatly enhances the waterproof effect of the road lamp light source and extends the service life of the lamp.
[0026] Furthermore, the road lamp light source adopts a modular design. In the later stage of use, when the light source is damaged and needs to be replaced, the modular light source can be directly replaced without disassembling the light source and damaging the original waterproof structure, nor does it need to remove the entire lamp from the lamp post, greatly reducing the later maintenance cost.
Claims
1. A modular waterproof structure for a street lamp light source. The street lamp includes a plurality of light source modules. The light source module includes a lens group (1), a radiator (2), and a sealing ring (3). The lens group (1) includes a lens fixing plate (11). The upper surface of the lens fixing plate (11) is provided with lenses (12) in an array. A light source (13) is provided in the lens (12). The radiator (2) includes a heat dissipation substrate (21) and a plurality of heat dissipation fins (22) located below the heat dissipation substrate (21). It is characterized in that: The described lens fixing plate (11) is located above the heat dissipation substrate (21). A water retaining wall (111) is formed at the bottom of the lens fixing plate (11) and around the edge of the lens (12) array. The heat dissipation substrate (21) is provided with a groove (211) on the upper surface corresponding to the water retaining wall (111). The sealing ring (3) is embedded in the groove (211). When the lens group (1) is connected and installed to the radiator (2), the bottom of the water retaining wall (111) is pressed into the groove (211) to tightly compress the sealing ring (3).
2. The modular waterproof structure of a street lamp light source according to claim 1, characterized in that: The water retaining wall (111) and the lens fixing plate (11) are integrally formed parts.
3. The modular waterproof structure of a street lamp light source according to claim 1, characterized in that: The water retaining wall (111) is a PC plastic enclosure.
4. A modular waterproof structure for a street lamp light source, characterized in that: The lens fixing plate (11) is provided with screw holes (112) at intervals along the four peripheral edges. Connection holes (212) corresponding to the screw holes (112) are provided on the heat dissipation substrate (21). Screws (14) sequentially pass through the screw holes (112) and the connection holes (212) from top to bottom to fix the lens fixing plate (11) and the heat dissipation substrate (21). When the screws (14) are tightened downward, the water retaining wall (111) is pressed against the sealing ring (3) to achieve a sealed connection between the lens fixing plate (11) and the heat dissipation substrate (21).
5. The modular waterproof structure of a street lamp light source according to claim 1, characterized in that: The sealing ring (3) is a foamed silicone sealing ring.
6. The modular waterproof structure of a street lamp light source according to claim 1, characterized in that: The heat dissipation fins (22) are arranged in straight strips evenly.