LED street lamp with intelligent dimming function

By introducing a fan and motor-driven threaded rod gear mechanism into LED streetlights, the problems of poor heat dissipation and dust prevention are solved, achieving effective heat dissipation and dust prevention, and extending the service life of the streetlights.

CN223939397UActive Publication Date: 2026-02-24FU ZHAO NEW ENERGY TECH (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202520526339.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-02-24
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Traditional LED streetlights suffer from poor heat dissipation and are difficult to maintain due to dust, which makes electrical components prone to damage and allows dust and impurities to enter, affecting their lifespan.

Method used

A fan is used for heat dissipation, and the fan angle and baffle movement are achieved through a motor-driven threaded rod and gear mechanism to remove dust and maintain air permeability and heat dissipation efficiency.

Benefits of technology

Effective heat dissipation and prevention of dust ingress extend the lifespan of LED streetlights and reduce maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of LED street lamps, and particularly relates to an intelligent dimming LED street lamp which comprises a rack and a street lamp body, the street lamp body is fixed to one side of the rack, a shell is fixed to the upper end of the rack, supporting plates are fixed to the two ends in the shell, and a first motor is fixed to the interior of the shell; the first motor is located in the supporting plate, a first threaded rod is fixed to the output end of the first motor, a moving block is in threaded connection with the outer side of the first threaded rod, a supporting rod is rotationally connected to the side, away from the supporting plate, of the moving block, and a fan is fixed to the lower end of the supporting rod; heat dissipation holes are formed in the shell and located at the lower end of the fan, and a rack is fixed to the side, close to the fan, of the supporting plate. According to the LED street lamp, heat dissipation can be conducted on electrical elements in the LED street lamp through the fan, in addition, dust among holes of the dustproof plate is effectively removed by rotating the fan, ventilation is guaranteed, and good heat dissipation and ventilation are maintained.
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Description

Technical Field

[0001] This utility model belongs to the field of LED street light technology, specifically relating to an LED street light with intelligent dimming. Background Technology

[0002] LED streetlights are streetlights made with LED light sources. They have unique advantages such as high efficiency, safety, energy saving, environmental protection, long lifespan, fast response speed, and high color rendering index, and are of great significance to urban lighting energy conservation.

[0003] However, traditional LED streetlights often face problems of poor heat dissipation and difficulties in dust prevention and maintenance. On the one hand, streetlights generate a lot of heat during long-term operation. If this heat cannot be dissipated in time, the internal electrical components of the LED streetlight are prone to performance degradation or even damage due to high temperatures, leading to frequent streetlight failures and increasing maintenance costs and manpower. On the other hand, dust and other impurities easily adhere to the dustproof components at the air inlet of the streetlight. Over time, the pores of the dustproof components become blocked, obstructing ventilation. This not only affects heat dissipation but also allows external dust and debris to enter the streetlight, contaminating the electrical components and further shortening the streetlight's lifespan. Based on the above problems, this application proposes an LED streetlight with intelligent dimming to improve these issues. Utility Model Content

[0004] The purpose of this invention is to provide an LED street light with intelligent dimming that can dissipate heat from the internal electrical components of the LED street light through a fan. In addition, by rotating the fan, dust can be effectively removed from the gaps in the dustproof plate, ensuring air permeability and maintaining good heat dissipation and ventilation.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] An LED street light with intelligent dimming includes a frame and a street light. The street light is fixed to one side of the frame. A housing is fixed to the upper end of the frame. Support plates are fixed to both ends inside the housing. A first motor is fixed inside the housing and is located inside the support plates. A first threaded rod is fixed to the output end of the first motor. A moving block is threadedly connected to the outer side of the first threaded rod. A support rod is rotatably connected to the side of the moving block away from the support plates. A fan is fixed to the lower end of the support rod. A heat dissipation hole is provided inside the housing and below the fan.

[0007] In a preferred embodiment, a rack is fixed to the side of the support plate near the fan, and a gear is fixed to the side of the support rod near the support plate, with the rack and gear meshing together.

[0008] In a preferred embodiment, air inlets are provided at both ends of the outer casing, and dustproof plates are fixed inside the two air inlets.

[0009] In a preferred embodiment, load-bearing plates are fixed at both ends inside the outer casing. A second motor is fixed at the upper end of the load-bearing plate, and a second threaded rod is fixed at the output end of the second motor. Two external threads are provided on the outer side of the second threaded rod, and the two external threads have opposite directions of rotation. Movable plates are threaded to both ends of the outer side of the second threaded rod, and the lower ends of the two movable plates penetrate the lower end of the load-bearing plate. A baffle is fixed to the lower end of the two movable plates.

[0010] In a preferred embodiment, both ends of the inner shell are fixed with partitions, and the partitions have grooves at the ends near the outer shell, and the partitions and grooves are adapted to each other.

[0011] In a preferred embodiment, a controller is fixed to one end inside the housing, and a temperature and humidity sensor is fixed to one end of the housing and located at the controller.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This utility model uses a first motor to drive a first threaded rod to rotate. The rotation of the first threaded rod causes the moving block to move the support rod upward. At the same time, the gear and rack mesh, and the support rod drives the fan to start rotating. When the fan is facing the dustproof plate, the fan stops rotating. The fan can blow from the inside of the outer shell to the outside of the dustproof plate, expelling the dust attached to the gaps in the dustproof plate into the external environment, ensuring the dustproof plate is breathable and maintaining good heat dissipation and ventilation inside the street light.

[0014] This utility model uses a second motor to drive a second threaded rod to rotate. The rotation of the second threaded rod can drive two movable plates to move, and the movement of the two movable plates can drive the baffle to move. When the two baffles move away from each other, the air inlet can be fully opened, improving heat dissipation efficiency. When the baffles move closer to each other and close, they can effectively block external dust and debris from entering the street light, reducing pollution and damage to electrical components and extending the service life of the street light. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure inside the outer shell of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the support plate, fan, and support rod of this utility model;

[0019] Figure 5 This is a cross-sectional view of the support plate of this utility model;

[0020] Figure 6 This is a schematic diagram of the second threaded rod, the movable plate, and the baffle structure of this utility model;

[0021] Figure 7 This is a cross-sectional view of the load-bearing plate of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 10. Frame; 11. Streetlight; 12. Housing; 13. Support plate; 14. First motor; 15. First threaded rod; 16. Moving block; 17. Support rod; 18. Fan; 19. Rack; 20. Gear; 21. Dustproof plate; 25. Load-bearing plate; 26. Second motor; 27. Second threaded rod; 28. Moving plate; 29. ​​Baffle; 30. Partition; 31. Controller; 32. Temperature and humidity sensor. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] Please see the appendix Figures 1 to 5As shown, this utility model provides an LED street light with intelligent dimming, including a frame 10 and a street light 11. The street light 11 is fixed to one side of the frame 10. A housing 12 is fixed to the upper end of the frame 10. Support plates 13 are fixed to both ends inside the housing 12. A first motor 14 is fixed inside the housing 12 and is located inside the support plates 13. A first threaded rod 15 is fixed to the output end of the first motor 14. A moving block 16 is threadedly connected to the outer side of the first threaded rod 15. A support rod 17 is rotatably connected to the side of the moving block 16 away from the support plate 13. A fan 18 is fixed to the lower end of the support rod 17. A heat dissipation hole is opened inside the housing 12 and below the fan 18. A rack 19 is fixed to the side of the support plate 13 near the fan 18. A gear 20 is fixed to the side of the support rod 17 near the support plate 13, and the rack 19 and the gear 20 are meshed. Air inlets are opened at both ends of the housing 12, and dustproof plates 21 are fixed inside the two air inlets.

[0029] In this embodiment, an air outlet is provided at the lower end of the street lamp 11. When heat dissipation is needed inside the street lamp 11, the controller 31 starts the fan 18 to dissipate heat inside the street lamp 11. When cleaning of the dust cover 21 is needed, the first motor 14 is started. The rotation of the first motor 14 drives the first threaded rod 15 to rotate. Because the first threaded rod 15 is threadedly connected to the moving block 16, and the moving block 16 is slidably connected to the support plate 13, when the first threaded rod 15 rises, the moving block 16 can slide inside the support plate 13. One side of block 16 extends into the interior of support rod 17 and is rotatably connected to it. A gear 20 is fixed to the side of support rod 17 near the moving block 16, and a rack 19 is fixed to the side of support plate 13 near the fan 18. Therefore, when the moving block 16 drives the support rod 17 to rise, the gear 20 and support rod 17 begin to rotate under the action of the rack 19. When the moving block 16 rises to the point where the support rod 17 has rotated 90°, the fan 18 fixed to the support rod 17 faces the dustproof plate 21, blowing dust from the inside out, ensuring the dustproof plate 21 is breathable and maintaining a good heat dissipation and ventilation environment inside the streetlight 11. It should be noted that in the initial state, the rack 19 and gear 20 are meshed, and a damping material is provided between the moving block 16 and support rod 17. Streetlight 11 refers to the cavity or area where the streetlight light-emitting module and its closely related electrical components are located.

[0030] Secondly, please refer to the following as well. Figure 6 and Figure 7Both ends of the outer casing 12 are fixed with load-bearing plates 25. The upper end of the load-bearing plate 25 is fixed with a second motor 26. The output end of the second motor 26 is fixed with a second threaded rod 27. The outer side of the second threaded rod 27 is provided with two external threads with opposite directions of rotation. Both ends of the outer side of the second threaded rod 27 are threaded with movable plates 28. The lower ends of the two movable plates 28 penetrate the lower end of the load-bearing plate 25. The lower ends of the two movable plates 28 are fixed with baffles 29.

[0031] In this embodiment, when heat dissipation is required inside the streetlight 11, the second motor 26 rotates, driving the second threaded rod 27 to rotate. The two external threads in the second threaded rod 27 have opposite directions of rotation. Since the outer threads of the second threaded rod 27 are connected to two movable plates 28, and the two movable plates 28 are slidably connected to the load-bearing plate 25, and each of the lower ends of the two movable plates 28 is fixed with a baffle 29, when the second threaded rod 27 rotates, the two movable plates 28 can cause the two baffles 29 to move away from each other. This movement of the two baffles 29 away from each other opens the heat dissipation channel and dustproof plate. 21 can allow air to enter while blocking dust and other impurities from entering the street light 11. On the side where the two baffles 29 are close to each other, a limiting groove is opened on one side of one baffle 29 and a limiting block is opened on one side of the other baffle 29. The limiting groove and the limiting block are compatible. When the two baffles 29 are close to each other and closed, the limiting block is embedded in the limiting groove, filling the gap between the baffles 29, preventing dust, debris and other objects from entering the street light 11 from the gap, avoiding damage to the electrical components and wiring inside the street light 11, and ensuring the normal operation and service life of the street light 11.

[0032] To further understand and explain, Figure 6 and Figure 7 For example, both ends of the outer shell 12 are fixed with partitions 30, and the baffle 29 has a groove at one end near the outer shell 12, and the partition 30 and the groove are compatible.

[0033] In this embodiment, partitions 30 are fixed at both ends inside the outer shell 12, and the upper end of the partition 30 is higher than the lower end of the air inlet. The partition 30 can reduce the intrusion of water vapor. Even if a small amount of water splashes onto the outside of the outer shell 12, the partition 30 plays a certain blocking role to prevent water from directly entering the interior of the street lamp 11, thereby improving the waterproof performance of the street lamp 11.

[0034] In a preferred embodiment, please refer to Figure 3 A controller 31 is fixed inside the housing 12, and a temperature and humidity sensor 32 is fixed at one end of the housing 12 and located at the controller 31.

[0035] In this embodiment, the temperature and humidity sensor 32 can detect the temperature and humidity of the environment. The information detected by the temperature and humidity sensor 32 can be transmitted to the controller 31. The controller 31 and the first motor 14, as well as the controller 31 and the second motor 26, are all electrically connected by wires. The first motor 14, the second motor 26, the fan 18, and the controller 31 are all powered by the power module. It should be noted that the wire between the fan 18 and the power module has a certain length reserved so that when the fan 18 rotates, the wire will not be pulled due to being too short, which would cause damage to the circuit or poor contact.

[0036] The working principle of this utility is as follows:

[0037] During operation, the temperature and humidity sensor 32 can detect the ambient temperature and humidity. When the temperature exceeds the set threshold, the controller 31 starts the fan 18. At the same time, the second motor 26 drives the second threaded rod 27 to rotate. The rotation of the second threaded rod 27 causes the two moving plates 28 to move the two baffles 29 away from each other, opening the air inlet for rapid heat dissipation. When it is necessary to clean the dustproof plate 21, the two baffles 29 move away from each other, and the first motor 14 is started. The first motor 14 drives the first threaded rod 15 to rotate, causing the moving block 16 to slide along the support plate 13. With the cooperation of the rack 19 and the gear 20, the support rod 17 rotates, causing the fan 18 to adjust its angle to align with the dustproof plate 21. The fan 18 blows dust from the inside out, ensuring that the dustproof plate 21 is breathable and maintaining a good heat dissipation and ventilation environment inside the street light 11.

[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. An LED street light with intelligent dimming, comprising a frame (10) and a street light (11), wherein the street light (11) is fixed to one side of the frame (10), characterized in that: The upper end of the frame (10) is fixed with a shell (12), and the two ends of the shell (12) are fixed with support plates (13). The shell (12) is fixed with a first motor (14), and the first motor (14) is located inside the support plate (13). The output end of the first motor (14) is fixed with a first threaded rod (15). The outer side of the first threaded rod (15) is threaded with a moving block (16). The side of the moving block (16) away from the support plate (13) is rotatably connected with a support rod (17). The lower end of the support rod (17) is fixed with a fan (18). The shell (12) is provided with a heat dissipation hole at the lower end of the fan (18).

2. The LED street light with intelligent dimming according to claim 1, characterized in that: A rack (19) is fixed to the side of the support plate (13) near the fan (18), and a gear (20) is fixed to the side of the support rod (17) near the support plate (13), and the rack (19) and the gear (20) are meshed together.

3. The LED street light with intelligent dimming according to claim 1, characterized in that: Both ends of the outer shell (12) are provided with air inlets, and dustproof plates (21) are fixed inside the two air inlets.

4. The LED street light with intelligent dimming according to claim 1, characterized in that: Both ends of the outer shell (12) are fixed with load-bearing plates (25). The upper end of the load-bearing plate (25) is fixed with a second motor (26). The output end of the second motor (26) is fixed with a second threaded rod (27). The outer side of the second threaded rod (27) is provided with two external threads. The two external threads are turned in opposite directions. Both ends of the outer side of the second threaded rod (27) are threaded with moving plates (28). The lower ends of the two moving plates (28) penetrate the lower end of the load-bearing plate (25). The lower ends of the two moving plates (28) are fixed with baffles (29).

5. An LED street light with intelligent dimming according to claim 4, characterized in that: Both ends of the outer shell (12) are fixed with partitions (30), and the baffle (29) has a groove at one end near the outer shell (12), and the partition (30) and the groove are compatible.

6. An LED street light with intelligent dimming according to claim 1, characterized in that: A controller (31) is fixed inside one end of the housing (12), and a temperature and humidity sensor (32) is fixed at one end of the housing (12) and located at the controller (31).