Bionic cicada wing super-hydrophobic self-cleaning LED street lamp with high luminous flux maintenance rate
LED street lights designed with bionic cicada wing structure and air guide plates use rainwater and airflow to achieve self-cleaning and efficient heat dissipation, solving the problems of reduced luminous flux rate and poor heat dissipation in dust environments, and achieving efficient use without manual maintenance.
Patent Information
- Application Number
- CN202510620596.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2025-07-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When existing LED street lights are used in dust environments for a long time, the light-transmitting plate is covered with dust, resulting in a decrease in the luminous flux rate and poor heat dissipation, which affects the service life and requires regular manual cleaning and maintenance.
The PC light-transmitting board with bionic cicada wing structure is combined with fluorosilane coating and air guide plate design, and automatic cleaning of rainwater and vehicle airflow is achieved by self-cleaning, combining heat dissipation fins and cyclones to achieve efficient heat dissipation, simplifying the lamp tube replacement process.
It realizes self-cleaning and efficient heat dissipation without manual maintenance, maintains luminous fluorescence, extends the service life of LED street lights, and solves the problem of light decay in dust environments.
Smart Images
Figure CN120251931A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of municipal lighting, and particularly to a high luminous flux maintenance rate LED street lamp with bionic cicada wing superhydrophobic self-cleaning function. Background Art
[0002] Street lamps are an important part of urban lighting. Most of the current street lamps use LEDs as light sources. LEDs are light sources made based on the electroluminescence principle of semiconductor PN junctions and have many advantages that cannot be compared with traditional street lamps.
[0003] Currently used LED street lamps will be covered with dust during long-term use. Especially on dusty roads in industrial parks, mining areas, and rural areas, when dust covers the light-transmitting plates of street lamps for a long time, the luminous flux rate will be reduced, and heat dissipation will be affected, accelerating light decay. In order to extend the service life, only regular manual cleaning and maintenance of street lamps can be carried out. Summary of the Invention
[0004] The present invention provides a high luminous flux maintenance rate LED street lamp with bionic cicada wing superhydrophobic self-cleaning function, so that its PC light-transmitting plate will not be covered with dust for a long time, thereby improving the luminous flux rate of the PC light-transmitting plate, ensuring the heat dissipation effect, reducing light decay, and solving the problem of light decay caused by dust in industrial parks, mining areas, and rural dusty roads without manual maintenance.
[0005] In the first aspect of the present invention, a high luminous flux maintenance rate LED street lamp with bionic cicada wing superhydrophobic self-cleaning function is provided, which specifically includes: a street lamp column; a PC light-transmitting plate is adhesively bonded to the upper positions on the front and rear sides of the street lamp column with structural adhesive; a lamp tube mounting tray is slidably installed at the lower position on the front side of the street lamp column, a positioning screw is installed at the bottom of the front side of the lamp tube mounting tray, and an LED lamp tube is screwed to the top of the lamp tube mounting tray; a group of side support shells are welded on the outer walls of the left and right sides and the top outer wall of the street lamp column, and a total of five heat dissipation fins are welded at equal intervals between the side support shells and the street lamp column; four air guide plates are also fixed on the front and rear outer walls of the side support shells.
[0006] Among them, a rectangular opening is provided at the middle position of the top of the side support shell, and a rectangular opening is also provided at the bottom positions on the left and right sides of the side support shell.
[0007] Among them, a rectangular cavity is provided inside the street lamp column. The lamp tube mounting tray is an L-shaped plate, and the horizontal plate at the top of the lamp tube mounting tray can slide up and down in the rectangular cavity inside the street lamp column. When the lamp tube mounting tray slides up to the top, the LED lamp tube will be located between the two PC light-transmitting plates. At the same time, the vertical plate of the lamp tube mounting tray will close the opening on the front side of the street lamp column. When the lamp tube mounting tray slides down to the bottom, the LED lamp tube will be located behind the opening on the front side of the street lamp column.
[0008] Among them, bionic cicada wing micro-nano protrusions are provided on the outer walls of the PC light-transmitting plates. The height of the protrusions is 3 μm, and the spacing is 10 μm. Moreover, a layer of fluorosilane coating is also applied to the outer walls of the PC light-transmitting plates.
[0009] Among them, vertical protruding strips are provided on the inner walls of the left and right sides of the front opening of the street lamp column. Corresponding vertical guide grooves are also provided on the left and right sides of the vertical plate of the lamp tube installation support plate.
[0010] Among them, the wind guide plates are respectively located on the left and right sides of the PC light-transmitting plates, and spiral diversion holes penetrating through left and right are equidistantly arranged up and down on the wind guide plates.
[0011] Among them, a vertical protruding plate is provided on the front outer wall of the street lamp column. When the lamp tube installation support plate slides to the topmost position, its top end will be located at the rear side of the vertical protruding plate on the front side of the street lamp column. A layer of rubber is also wrapped around the outside of the vertical plate on the front side of the lamp tube installation support plate.
[0012] Among them, the heat dissipation fins are all inverted U-shaped sheets, and the outer walls of the heat dissipation fins are welded to the outer wall of the street lamp column and the inner wall of the side support housing. Six inverted U-shaped grooves are provided between the heat dissipation fins.
[0013] The present invention provides a bionic cicada wing superhydrophobic self-cleaning high luminous flux maintenance rate LED street lamp, which has the following beneficial effects: In the present invention, a bionic cicada wing structure is arranged on the surface of the PC light-transmitting plate, which has superhydrophobic ability and self-cleaning ability. When it rains, rainwater can automatically take away the dust on the surface of the PC light-transmitting plate, so that the PC light-transmitting plate will not be covered by dust for a long time, thereby improving the luminous flux of the PC light-transmitting plate, and also ensuring the heat dissipation effect and reducing the light decay.
[0014] In addition, when a vehicle passes on the road surface on one side of the street lamp, the airflow generated can generate a cyclone through the spiral diversion holes on the wind guide plate, and then the cyclone will move on the surface of the PC light-transmitting plate, so as to blow the dust covering the surface of the PC light-transmitting plate, and the problem of light decay caused by road dust in industrial parks, mining areas and rural areas can be solved without manual maintenance.
[0015] In addition, when the LED lamp tube needs to be replaced, only need to push the lamp tube installation support plate downward to adjust the LED lamp tube to the lower position, and at the same time open the opening on the front side of the street lamp column, and then the replacement operation of the LED lamp tube can be carried out, and the operation of replacing the LED lamp tube is more concise. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.
[0017] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.
[0018] In the attached picture: Figure 1 A schematic diagram showing the main shaft side of the overall structure of the present application; Figure 2 A schematic diagram of the rear axle side showing the overall structure of the present application; Figure 3 It shows a schematic diagram of the main shaft side after the lamp tube mounting support plate in the present application slides down; Figure 4 It shows an axial schematic diagram of a street lamp column cut in this application and a lamp tube mounting bracket after sliding down; Figure 5 It shows an axial schematic diagram of a street lamp column cut in this application and after the lamp tube mounting bracket slides down; Figure 6 A schematic diagram of the structure of the heat dissipation fins in the present application is shown; Figure 7 A schematic diagram of the structure of the air guide plate in the present application after partial sectioning is shown; Figure 8 A schematic diagram of the structure of a street lamp column in the present application after partial sectioning is shown; Reference numerals list 1. Street light column; 2. PC light-transmitting board; 3. Lamp tube mounting bracket; 4. Positioning screws; 5. LED lamp tube; 6. Side support shell; 7. Heat dissipation fins; 8. Air guide plate. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] Example 1: Please refer to Figures 1 to 8 : The present invention provides a high luminous flux maintenance rate LED street lamp with bionic cicada wing superhydrophobic self-cleaning function, including: a street lamp column 1; on the upper positions of the front and rear sides of the street lamp column 1, a PC light-transmitting plate 2 is bonded with structural adhesive. The street lamp column 1 is used to support other structural parts of the street lamp. After the LED lamp tube 5 is lit at night, the light emitted by the LED lamp tube 5 will pass through the two PC light-transmitting plates 2 to illuminate the nearby road surface. The bionic cicada wing structure on the outer wall of the PC light-transmitting plate 2 has superhydrophobic ability and self-cleaning ability. When it rains, the rainwater can automatically take away the dust when washing on the surface of the PC light-transmitting plate 2, reducing the light decay caused by the long-term dust covering on the PC light-transmitting plate 2; a lamp tube installation support plate 3 is slidably installed at the lower position on the front side of the street lamp column 1. A positioning screw 4 is installed at the bottom of the front side of the lamp tube installation support plate 3. An LED lamp tube 5 is screwed onto the top of the lamp tube installation support plate 3 through threads. The lamp tube installation support plate 3 is used to fix the LED lamp tube 5. When the LED lamp tube 5 needs to be replaced, the lamp tube installation support plate 3 can be pushed down to the bottom. When the lamp tube installation support plate 3 slides to the bottom, the LED lamp tube 5 can be installed and disassembled through the opening on the front side of the street lamp column 1. After the replacement of the LED lamp tube 5 is completed, the lamp tube installation support plate 3 is pushed up to the top, and then the positioning screw 4 is passed through the lamp tube installation support plate 3 again and screwed into the threaded hole on the street lamp column 1 to fix the position of the lamp tube installation support plate 3. At this time, the lamp tube installation support plate 3 can ensure that the cavity where the LED lamp tube 5 is located is closed, preventing dust and rainwater from entering the interior. The LED lamp tube 5 is used to illuminate the road surface; a group of side support shells 6 are welded on the outer walls of the left and right sides and the top outer wall of the street lamp column 1. A total of five heat dissipation fins 7 are welded at equal distances between the side support shells 6 and the street lamp column 1. Part of the heat generated when the LED lamp tube 5 works will be transferred to the heat dissipation fins 7 through the street lamp column 1. When a vehicle passes on the road surface, the airflow generated will enter the inverted U-shaped groove between the heat dissipation fins 7 through the rectangular openings at the bottom positions on the left and right sides of the side support shells 6 and flow upward. During this process, the airflow will take away the heat on the heat dissipation fins 7 to achieve heat dissipation. Finally, the airflow will be discharged upward through the rectangular opening in the middle of the top of the side support shell 6; four air guide plates 8 are also fixed on the front and rear outer walls of the side support shell 6. When a vehicle passes on the road surface, the airflow generated will enter the spiral diversion holes on the air guide plates 8 to generate air vortices, and then the air vortices will move on the surface of the PC light-transmitting plate 2, so as to blow the dust covering the surface of the PC light-transmitting plate 2, eliminating the need for manual maintenance and solving the problem of light decay caused by road dust in rural areas.
[0021] In this embodiment, as Figures 1 - 5 and Figure 7As shown, a rectangular opening is provided at the middle position of the top of the side support housing 6, and a rectangular opening is also provided at the bottom position on both the left and right sides of the side support housing 6. When there is a vehicle passing on the road surface, the airflow generated will enter the inverted U-shaped groove between the heat dissipation fins 7 through the rectangular openings at the bottom positions on both the left and right sides of the side support housing 6 and flow upward. During this process, the airflow will take away the heat on the heat dissipation fins 7 to achieve heat dissipation. Finally, the airflow will be discharged upward through the rectangular opening at the middle position of the top of the side support housing 6. Moreover, during rainy weather, the rainwater that enters the inside of the side support housing 6 will also flow out through the rectangular openings at the bottom positions on both the left and right sides of the side support housing 6.
[0022] In this embodiment, as Figure 1 and Figures 3 - 5 shown, a rectangular cavity is provided inside the street lamp post 1. The lamp tube installation support plate 3 is an L-shaped plate. The horizontal plate at the top of the lamp tube installation support plate 3 can slide up and down in the rectangular cavity inside the street lamp post 1. When the lamp tube installation support plate 3 slides up to the topmost position, the LED lamp tube 5 will be located between the two PC light-transmitting plates 2. At the same time, the vertical plate of the lamp tube installation support plate 3 will close the opening on the front side of the street lamp post 1. When the lamp tube installation support plate 3 slides down to the bottommost position, the LED lamp tube 5 will be located behind the opening on the front side of the street lamp post 1. When the LED lamp tube 5 needs to be replaced, the lamp tube installation support plate 3 can be pushed down to the bottommost position. When the lamp tube installation support plate 3 slides down to the bottommost position, the LED lamp tube 5 can be installed and disassembled through the opening on the front side of the street lamp post 1. After the replacement of the LED lamp tube 5 is completed, the lamp tube installation support plate 3 is pushed up to the topmost position, and then the positioning screw 4 is passed through the lamp tube installation support plate 3 again and screwed into the threaded hole on the street lamp post 1 to fix the position of the lamp tube installation support plate 3. At this time, the lamp tube installation support plate 3 can ensure that the cavity where the LED lamp tube 5 is located is closed, preventing dust and rainwater from entering the inside.
[0023] In this embodiment, as Figures 1 - 5 shown, biomimetic cicada wing micro-nano protrusions are provided on the outer walls of the PC light-transmitting plates 2. The height of the protrusions is 3 μm, and the spacing is 10 μm. Moreover, a layer of fluorosilane coating is also applied on the outer walls of the PC light-transmitting plates 2. The biomimetic cicada wing structure has superhydrophobic ability and self-cleaning ability. When encountering rainy weather, the rainwater washing on the surface of the PC light-transmitting plates 2 can automatically take away the dust, reducing the light attenuation caused by the long-term covering of dust on the PC light-transmitting plates 2.
[0024] In this embodiment, as Figure 1 and Figures 3 - 5 and Figure 8As shown, a vertical protrusion strip is provided on the left and right inner walls of the front opening of the street lamp column 1, and a corresponding vertical guide groove is also provided on the left and right sides of the vertical plate of the lamp tube mounting bracket 3. When the lamp tube mounting bracket 3 slides up and down, the vertical guide grooves on the left and right sides of the vertical plate on the front side of the lamp tube mounting bracket 3 will slide and cooperate with the vertical protrusion strips on the left and right inner walls of the front opening of the street lamp column 1, thereby preventing the lamp tube mounting bracket 3 from moving forward and backward, and ensuring the stability of the lamp tube mounting bracket 3 when sliding up and down.
[0025] In this embodiment, Figures 1 - 5 and Figure 7 As shown, the air guide plates 8 are respectively located on the left and right sides of the PC light-transmitting plate 2, and spiral guide holes are equidistantly arranged on the air guide plates 8. When a vehicle passes on the road, the airflow generated will enter the spiral guide holes on the air guide plates 8 to generate cyclones, and then the cyclones will move on the surface of the PC light-transmitting plate 2, so as to sweep away the dust covering the surface of the PC light-transmitting plate 2. No manual maintenance is required, and the light decay problem caused by dust on rural roads can be solved.
[0026] In this embodiment, Figures 1 - 6 As shown, the heat dissipation fins 7 are all inverted U-shaped pieces, and the outer walls of the heat dissipation fins 7 are welded to the outer wall of the street lamp column 1 and the inner wall of the side support shell 6. Six inverted U-shaped grooves are arranged between the heat dissipation fins 7. Part of the heat emitted by the LED lamp tube 5 during operation will be transferred to the heat dissipation fins 7 through the street lamp column 1. When a vehicle passes by on the road, the airflow generated will enter the inverted U-shaped grooves between the heat dissipation fins 7 through the rectangular openings at the bottom positions of the left and right sides of the side support shell 6 and flow upward. In this process, the airflow will take away the heat on the heat dissipation fins 7 to achieve heat dissipation.
[0027] Embodiment 2, based on embodiment 1, as Figures 1 - 8 As shown, a vertical raised plate is provided on the front outer wall of the street lamp column 1. When the lamp tube mounting bracket 3 slides up to the top, its top will be located on the rear side of the vertical raised plate on the front side of the street lamp column 1. The outer side of the vertical plate on the front side of the lamp tube mounting bracket 3 is also wrapped with a layer of rubber. Therefore, when the lamp tube mounting bracket 3 slides up to the top, the vertical raised plate on the front side of the street lamp column 1 can cover the joint position of the top of the lamp tube mounting bracket 3 to prevent rainwater from seeping in during rainy weather. The rubber on the outer side of the vertical plate on the front side of the lamp tube mounting bracket 3 can further improve the sealing performance.
[0028] The working principle of this embodiment: during installation, the base at the bottom of the street lamp column 1 can be fixed on the ground. When the LED lamp tube 5 is turned on at night, the light emitted by the LED lamp tube 5 will illuminate the nearby road surface through the two PC translucent panels 2, and part of the heat emitted by the LED lamp tube 5 when working will be transferred to the heat dissipation fins 7 through the street lamp column 1. When a vehicle with a speed ≥3m / s passes on the road, the airflow generated will enter the inverted U-shaped groove between the heat dissipation fins 7 through the rectangular openings at the bottom positions of the left and right sides of the side support shell 6 and flow upward. In this process, the airflow will take away the heat on the heat dissipation fins 7 to achieve heat dissipation. Finally, the airflow will be discharged upward through the rectangular opening in the middle position of the top of the side support shell 6. In addition, the airflow generated when the vehicle passes by will also enter the spiral guide hole on the air guide plate 8 to generate a cyclone, and then the cyclone will move on the surface of the PC translucent panel 2, so that the dust covered on the surface of the PC translucent panel 2 can be swept away. When encountering rainy weather, the rainwater can automatically take away the dust when it washes on the surface of the PC translucent panel 2. After the LED lamp 5 is replaced, the lamp mounting bracket 3 is pushed upward to the top, and the positioning screw 4 is passed through the lamp mounting bracket 3 again and screwed into the threaded hole on the street light column 1 to fix the position of the lamp mounting bracket 3. At this time, the lamp mounting bracket 3 can ensure that the cavity where the LED lamp 5 is located is closed to prevent dust and rain from entering the interior.
[0029] In this article, there are a few points to note: 1. The drawings of this embodiment only involve the structures involved in this embodiment, and other structures can refer to the usual design.
[0030] 2. In the absence of conflict, this embodiment and the features in the embodiments may be combined with each other to obtain a new embodiment.
Claims
1. A high-light transmittance maintenance rate LED street lamp with bionic cicada wing superhydrophobic self-cleaning function, comprising: Street lamp pole (1); characterized in that: on the upper positions of the front and rear sides of the street lamp pole (1), a PC light-transmitting plate (2) is bonded with structural adhesive; at the lower position on the front side of the street lamp pole (1), a lamp tube mounting support plate (3) is slidably installed, a positioning screw (4) is installed at the bottom of the front side of the lamp tube mounting support plate (3), and an LED lamp tube (5) is screwed onto the top of the lamp tube mounting support plate (3) by threads; on the outer walls of the left and right sides and the top outer wall of the street lamp pole (1), a group of side support shells (6) are welded, and a total of five heat dissipation fins (7) are welded at equal intervals between the side support shells (6) and the street lamp pole (1); on the front and rear outer walls of the side support shell (6), four air guide plates (8) are also fixed.
2. The high-light flux maintenance rate LED street lamp with biomimetic cicada wing superhydrophobic self-cleaning according to claim 1, characterized in that, On the outer walls of the PC light-transmitting plates (2), biomimetic cicada wing micro-nano protrusions are provided, the height of the protrusions is 3 μm, the spacing is 10 μm, and a fluorosilane coating is also applied to the outer walls of the PC light-transmitting plates (2).
3. The superhydrophobic self-cleaning high luminous flux maintenance rate LED street lamp with bionic cicada wings according to claim 1, characterized in that The air guide plates (8) are respectively located on the left and right sides of the PC light-transmitting plates (2), and spiral diversion holes penetrating left and right are arranged at equal intervals up and down on the air guide plates (8).
4. The high-light flux maintenance rate LED street lamp with bionic cicada wing superhydrophobic self-cleaning according to claim 1, characterized in that The heat dissipation fins (7) are all inverted U-shaped sheets, and the outer walls of the heat dissipation fins (7) are welded to the outer wall of the street lamp pole (1) and the inner wall of the side support shell (6), and six inverted U-shaped grooves are provided between the heat dissipation fins (7).
5. The high luminous flux maintenance rate LED street lamp with biomimetic cicada wing superhydrophobic self-cleaning according to claim 1, characterized in that, At the middle position of the top of the side support shell (6), a rectangular opening is provided, and rectangular openings are also provided at the bottom positions on the left and right sides of the side support shell (6).
6. The high-light flux maintenance rate LED street lamp with biomimetic cicada wing superhydrophobic self-cleaning according to claim 1, characterized in that Inside the street lamp pole (1), a rectangular cavity is provided. The lamp tube mounting support plate (3) is an L-shaped plate, and the horizontal plate at the top of the lamp tube mounting support plate (3) can slide up and down in the rectangular cavity inside the street lamp pole (1). When the lamp tube mounting support plate (3) slides to the topmost position, the LED lamp tube (5) will be located between the two PC light-transmitting plates (2). At the same time, the vertical plate of the lamp tube mounting support plate (3) will close the opening on the front side of the street lamp pole (1). When the lamp tube mounting support plate (3) slides to the bottommost position, the LED lamp tube (5) will be located behind the opening on the front side of the street lamp pole (1).
7. The high luminous flux maintenance rate LED street lamp with biomimetic cicada wing superhydrophobic self-cleaning according to claim 1, characterized in that, On the inner walls on the left and right sides of the opening on the front side of the street lamp pole (1), a vertical raised strip is provided, and corresponding vertical guide grooves are also provided on the left and right sides of the vertical plate of the lamp tube mounting support plate (3).
8. The high luminous flux maintenance rate LED street lamp with biomimetic cicada wing superhydrophobic self-cleaning according to claim 1, wherein, On the front outer wall of the street lamp pole (1), a vertical raised plate is provided. When the lamp tube mounting support plate (3) slides to the topmost position, its top end will be located behind the vertical raised plate on the front side of the street lamp pole (1), and a layer of rubber is also wrapped on the outside of the vertical plate on the front side of the lamp tube mounting support plate (3).