Fan-shaped beacon light optical device based on combination of multiple Fresnel lenses

Abstract

The utility model relates to a fan-shaped beacon light optical device based on combination of a plurality of Fresnel lenses, which comprises a lampshade and a light-emitting unit arranged in the lampshade, the light-emitting unit comprises a lamp bead radiating support, a PCB (printed circuit board) aluminum substrate and Fresnel lenses, the PCB aluminum substrate is mounted on the lamp bead radiating support and provided with LED lamp beads, and the Fresnel lenses are mounted on the lamp bead radiating support. The Fresnel lens is arranged on the outer side of the LED lamp bead in a covering mode, the multiple light-emitting units are distributed around the axis of the lampshade in a fan shape, and lamp bead heat dissipation supports of the multiple light-emitting units are installed at the bottom of a lamp bead line concentration board. The fan-shaped optical device is reasonable in structural design, a plurality of independent light-emitting units are distributed in a fan-shaped mode, different number combinations are selected according to field application environments, fan-shaped optical devices of 180 degrees, 120 degrees, 90 degrees and the like are finally formed, and the requirement for arranging beacon lights for peripheral important facilities (SPS) of a wind power plant is met.

Description

Technical Field

[0001] This utility model belongs to the field of navigation light technology, and in particular relates to a fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses. Background Technology

[0002] With the ever-increasing demand for energy, there is an urgent need to find a renewable and green energy source. my country has abundant offshore wind resources, with exploitable and usable wind energy storage of approximately 750 million kW. Therefore, the National Energy Administration has called for further efforts to improve the development and construction of offshore wind power, thereby accelerating its growth.

[0003] Considering the potential adverse impacts on the surrounding natural environment and navigation environment during the construction and operation of offshore wind farms, the National Energy Administration issued the "Notice on Issuing the Outline of Offshore Wind Farm Engineering Planning"; in February 2019, my country's Ministry of Housing and Urban-Rural Development released the "Design Standard for Offshore Wind Power Generation"; secondly, the International Association of Marine Aids to Navigation (IALA) also issued the "IALA Navigation Guide (7th Edition)" which sets out relevant requirements for nearshore wind farms, and the "GB 17380 Regulations on Marking Structures in Sea Areas" (draft for comments), which revised the old standard with reference to "IALA 0-139" (2013 revised edition), further improving the facility conditions required for wind power construction. To ensure the safety of power production and navigation in the surrounding waters, the installation of navigation lights at the Important Facilities (SPS) and Secondary Facilities (ISP) outside the wind farm is an essential part of the work of offshore wind farms (OWF).

[0004] Domestically used navigation lights are primarily designed for or developed to support basic navigational facilities such as lighthouses, buoys, and beacons. Their light sources typically consist of through-hole low-power LEDs or single high-power surface-mount LEDs, with an optical lens covering the LED to form a single luminous unit. However, existing navigation lights cannot freely combine LEDs and optical lenses to form independent luminous units, failing to meet the application requirements of SPS (Special Power Station) wind farms, where the luminous unit can utilize fan-shaped combinations such as 2*180°, 3*120°, and 4*90°. Utility Model Content

[0005] This invention addresses the problems existing in the prior art by providing a fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses, including a lampshade and light-emitting units disposed inside the lampshade. The light-emitting unit includes a lamp bead heat sink bracket, a PCB aluminum substrate, and a Fresnel lens. The PCB aluminum substrate is mounted on the lamp bead heat sink bracket and has LED lamp beads disposed thereon. The Fresnel lens covers the outside of the LED lamp beads. There are multiple light-emitting units, which are distributed in a fan shape around the axis of the lampshade. The lamp bead heat sink brackets of the multiple light-emitting units are mounted at the bottom of a lamp bead hub.

[0007] Furthermore, the angular radii of the multiple light-emitting units arranged in a fan shape are 180°, 120°, or 90°.

[0008] Furthermore, Fresnel lenses for multiple light-emitting units are distributed around the periphery of the LED hub plate.

[0009] Furthermore, the lamp bead heat dissipation bracket of the light-emitting unit is a horizontal U-shaped bracket with the opening facing the side where the lamp cover axis is located. The top of the lamp bead heat dissipation bracket is provided with a pair of connection holes, which are used to facilitate locking and fixing with the lamp bead hub plate by fasteners.

[0010] Furthermore, a fixed base plate is provided on the inner bottom surface of the lampshade, and the bottom of the lamp bead heat dissipation bracket of the light-emitting unit is connected to the fixed base plate.

[0011] Furthermore, the LED hub is connected to the fixed base plate via a pair of vertical connecting plates arranged in a horizontal V-shape; multiple light-emitting units are distributed on the back side of the pair of vertical connecting plates.

[0012] Furthermore, the Fresnel lens and the LED beads are both located on the side of the PCB aluminum substrate away from the heat dissipation bracket of the LED beads.

[0013] Furthermore, the lampshade is made of transparent plastic.

[0014] Furthermore, thermal grease is applied between the PCB aluminum substrate and the LED heat sink bracket.

[0015] Furthermore, the LED beads are surface-mount LED beads with a power greater than 1W.

[0016] Compared with the prior art, the present invention has the following advantages: The present invention has a reasonable structural design, consisting of multiple independent light-emitting units arranged in a fan shape. Depending on the on-site application environment, different combinations of quantities can be selected to ultimately form fan-shaped optical devices such as 180°, 120°, and 90°, which meet the requirements for setting up navigation lights for important facilities (SPS) on the periphery of wind farms. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram showing multiple light-emitting units arranged in a 180° fan shape in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram showing multiple light-emitting units arranged in a 120° fan shape in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram showing multiple light-emitting units arranged in a 90° fan shape in an embodiment of this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figures 1-4 As shown, this utility model discloses a fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses, specifically designed to meet the requirements for setting up navigation lights at important facilities (SPS) around wind farms. It includes a lampshade 4 made of transparent plastic and a light-emitting unit 1 disposed within the lampshade 4. The light-emitting unit 1 includes a lamp bead heat dissipation bracket 11, a PCB aluminum substrate 12, and a Fresnel lens 14. The PCB aluminum substrate 12 is mounted on the lamp bead heat dissipation bracket 11 and has multiple LED beads 13 disposed thereon. The Fresnel lens 14 covers the outside of the LED beads 13. The specific improvement lies in the fact that there are multiple light-emitting units 1, which are arranged in a fan shape around the axis of the lampshade 4. The lamp bead heat dissipation brackets 11 of the multiple light-emitting units 1 are mounted at the bottom of a lamp bead hub 2.

[0024] In this embodiment, the multiple light-emitting units 1 are arranged in a fan shape with angular radii of 180°, 120°, or 90°, respectively, and are used as follows: Figure 2 , 3 As shown in Figure 4, the number of light-emitting units 1 can be selected and combined in different ways according to the on-site application environment to ultimately form fan-shaped navigation light optical devices with angles of 180°, 120°, and 90°.

[0025] In this embodiment, the Fresnel lenses 14 of the multiple light-emitting units 1 are distributed on the outer periphery of the lamp bead hub plate 2.

[0026] In this embodiment, the lamp bead heat dissipation bracket 11 of the light-emitting unit 1 is a horizontal U-shaped bracket with the opening facing the side of the lamp cover 4 axis. The two sides of the lamp bead heat dissipation bracket 11 are distributed vertically. The top of the lamp bead heat dissipation bracket 11 is provided with a pair of connection holes 15. The pair of connection holes 15 are used to lock and fix the lamp bead hub plate 2 with fasteners.

[0027] In this embodiment, a fixed base plate 3 is provided on the inner bottom surface of the lampshade 1, and the bottom of the lamp bead heat dissipation bracket 11 of the light-emitting unit 1 is connected to the fixed base plate 3.

[0028] In this embodiment, the end of the LED bead hub 2 away from the multiple light-emitting units 1 is connected to the fixed base plate 3 through a pair of vertical connecting plates 6 arranged in a horizontal V-shape; the multiple light-emitting units 1 are distributed on the back side of the pair of vertical connecting plates 6.

[0029] In this embodiment, the Fresnel lens 14 and the LED bead 13 are both located on the side of the PCB aluminum substrate 12 away from the LED bead heat dissipation bracket 11. The LED bead 13 is soldered to the PCB aluminum substrate 12 and needs to be horizontally and vertically centered.

[0030] In this embodiment, thermal grease is applied between the PCB aluminum substrate 12 and the LED bead heat dissipation bracket 11 to accelerate the heat dissipation of the LED bead.

[0031] In this embodiment, the LED bead 13 is selected as a surface-mount LED bead with a power greater than 1W.

[0032] In this embodiment, the LED heat sink bracket 11 is preferably made of aluminum.

[0033] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0034] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0035] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An optical device for a fan-shaped navigation light based on a combination of multiple Fresnel lenses, comprising a lampshade and a light-emitting unit disposed within the lampshade, wherein the light-emitting unit comprises a heat sink bracket for LED beads, a PCB aluminum substrate, and a Fresnel lens, the PCB aluminum substrate being mounted on the heat sink bracket for LED beads, the PCB aluminum substrate being provided with LED beads, and the Fresnel lens being disposed on the outside of the LED beads, characterized in that: The light-emitting unit is a plurality of units, which are arranged in a fan shape around the axis of the lamp cover, and the heat dissipation brackets of the lamp beads of the plurality of light-emitting units are installed at the bottom of a lamp bead hub board.

2. The fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses according to claim 1, characterized in that: The multiple light-emitting units are arranged in a fan shape with an angular radius of 180°, 120° or 90°.

3. The fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses according to claim 1, characterized in that: Fresnel lenses for multiple light-emitting units are distributed around the periphery of the LED hub plate.

4. The fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses according to claim 1, characterized in that: The lamp bead heat dissipation bracket of the light-emitting unit is a horizontal U-shaped bracket with the opening facing the side where the lamp cover axis is located. The top of the lamp bead heat dissipation bracket is provided with a pair of connection holes, which are used to lock and fix the lamp bead hub plate with fasteners.

5. The fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses according to claim 1, characterized in that: The bottom of the lampshade is provided with a fixed base plate, and the bottom of the lamp bead heat dissipation bracket of the light-emitting unit is connected to the fixed base plate.

6. The fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses according to claim 5, characterized in that: The LED hub is connected to the fixed base plate via a pair of vertical connecting plates arranged in a horizontal V-shape; multiple light-emitting units are distributed on the back side of the pair of vertical connecting plates.

7. The fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses according to claim 1, characterized in that: The Fresnel lens and LED beads are both located on the side of the PCB aluminum substrate away from the heat dissipation bracket of the LED beads.

8. The fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses according to claim 1, characterized in that: The lampshade is made of transparent plastic.

9. The fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses according to claim 1, characterized in that: Thermal grease is applied between the PCB aluminum substrate and the LED heat sink bracket.

10. The fan-shaped navigation light optical device based on a combination of multiple Fresnel lenses according to claim 1, characterized in that: The LED beads are surface-mount LED beads with a power greater than 1W.

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