An integrated LED assembly for aircraft navigation lights

Abstract

This utility model discloses an integrated LED assembly for aircraft navigation lights, belonging to the field of aviation lighting technology. The assembly consists of a lamp panel assembly (30), a reflector (20), a fixing plate (45), a first label (10), a second label (15), and screws. The back of the rectangular lamp panel assembly is fastened to the center of the fixing plate by thermally conductive adhesive and screws. The annular reflector coaxially surrounds the lamp panel assembly and is fixed to the upper surface of the fixing plate with screws. The two rectangular labels are respectively screwed to the diagonal edges of the fixing plate. The fixing plate is provided with mounting holes around its perimeter for quick connection with existing lamp holders. All static parts are detachable screw connections, forming a stacked structure, which has the advantages of short heat dissipation path, high luminous efficiency, light weight, and convenient maintenance. It meets the DO-160G environmental requirements and has a lifespan of ≥40,000 hours.

Description

Technical Field

[0001] This utility model relates to the field of aviation lighting technology, and in particular to an integrated LED component for aircraft navigation lights. Background Technology

[0002] Current aircraft navigation lights generally use incandescent or halogen lamps, which have drawbacks such as short lifespan, low energy efficiency, and poor shock resistance. Although LED alternatives exist, they still suffer from insufficient heat dissipation, color drift, lack of lifespan prediction, and discrete protection functions. There is an urgent need for a fully integrated, highly reliable, and easy-to-maintain LED component. Utility Model Content

[0003] The purpose of this invention is to provide an integrated LED assembly for aircraft navigation lights, thereby solving the aforementioned problems in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An integrated LED assembly for aircraft navigation lights includes: a light panel assembly, a reflector, a mounting plate, a sign one, a sign two, and screws;

[0006] The lamp board assembly is a rectangular aluminum substrate, with LED beads encapsulated on the front and the back fastened to the upper surface of the center of the fixing plate by thermally conductive adhesive and screws.

[0007] The reflector is in the shape of a thin-walled ring, coaxially surrounds the lamp panel assembly, and its bottom surface is connected to the upper surface of the fixing plate by screws.

[0008] Both signboard one and signboard two are rectangular nameplates, which are fastened to the diagonal edges of the fixing plate by screws;

[0009] The mounting plate is a flat rectangular plate with mounting holes on all four sides, used to screw the entire assembly to the external lamp holder.

[0010] In some specific embodiments, the lamp panel assembly has through holes at the four corners, allowing screws to be directly locked into the corresponding threaded holes of the fixing plate to form a rigid connection.

[0011] In some specific embodiments, the inner wall of the reflector is coated with a high-reflectivity coating, and its bottom surface is attached to the upper surface of the fixing plate face to face and then fastened by circumferentially distributed screws.

[0012] In some specific embodiments, the lower surfaces of sign one and sign two are attached to the upper surface of the fixing plate, and each is positioned and fastened by a single screw.

[0013] In some specific embodiments, the central area of ​​the fixing plate is a flat heat-conducting surface, which is used to achieve full-area thermal contact with the back of the lamp panel assembly.

[0014] In some specific embodiments, the screws are cylindrical head machine screws, and the same specification runs through all connection positions of the light panel assembly, reflector, sign one, sign two and fixing plate.

[0015] In some specific embodiments, the outer contour of the reflector is a rounded rectangular ring, and the shape of its inner hole forms an equidistant annular gap with the outer contour of the lamp panel assembly.

[0016] In some specific embodiments, sign one and sign two have the same thickness, and after installation, their upper surfaces are flush with the upper surface of the reflector.

[0017] In some specific embodiments, the mounting holes around the fixing plate are countersunk holes, which are used to make the screw head lower than the lower surface of the plate to ensure a flat and snug fit with the lamp holder.

[0018] In some specific embodiments, all connections of the light panel assembly, reflector, sign one, and sign two on the fixing plate are detachable screw connections, forming a stacked static structure.

[0019] The beneficial effects of this utility model are:

[0020] There are only six categories of static parts, all of which are fastened with screws, requiring no welding, and can be reversibly disassembled on-site with a replacement time of less than 2 minutes.

[0021] The lamp board assembly and the fixing plate are thermally conductively bonded over a large area, reducing the LED junction temperature by ≥15℃ and significantly suppressing light decay.

[0022] The ring-shaped silver-plated reflector reflects side light towards the lens, effectively improving light efficiency by ≥8%.

[0023] The overall weight is less than 60g, which meets the requirements for lightweight aircraft.

[0024] Passing the DO-160G temperature -55℃~+85℃ and 5Hz~2000Hz random vibration and shock tests, the lifespan is ≥40000h, reducing maintenance costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a circuit diagram of the LED component of this utility model.

[0027] In the attached diagram, 10 is sign 1; 15 is sign 2; 20 is reflector; 30 is light panel assembly; and 45 is fixing plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0029] Reference Figure 1 and Figure 2 An integrated LED assembly for aircraft navigation lights is shown, comprising: a light panel assembly 30, a reflector 20, a mounting plate 45, a first label 10, a second label 15, and screws;

[0030] The lamp board assembly 30 is a rectangular aluminum substrate, with LED beads encapsulated on the front and the back fastened to the upper surface of the center of the fixing plate 45 by thermally conductive adhesive and screws.

[0031] The reflector 20 is an annular thin-walled shape, coaxially surrounds the lamp panel assembly 30, and its bottom surface is screwed to the upper surface of the fixing plate 45.

[0032] Both nameplate 10 and nameplate 215 are rectangular nameplates, which are fastened to the opposite corners of the fixing plate 45 by screws;

[0033] The mounting plate 45 is a flat rectangular plate with mounting holes around its perimeter, used to screw the entire assembly to the external lamp holder.

[0034] In this embodiment, refer to Figure 1 and Figure 2 As shown, this utility model discloses an integrated LED assembly for aircraft navigation lights. The assembly consists of a light panel assembly 30, a reflector 20, a fixing plate 45, a first label 10, a second label 15, and several screws 50. All static parts are stacked and fixed on the fixing plate 45 with detachable screws, forming an integrated structure for heat conduction, optics, and mechanics.

[0035] The lamp panel assembly 30 uses a rectangular aluminum substrate, with four aerospace-grade LED chips arrayed on the front and a flat, thermally conductive metal layer on the back. During assembly, a layer of high thermal conductivity adhesive is first applied to the upper central surface of the mounting plate 45. Then, the back of the lamp panel assembly 30 is attached to this position. Four cylindrical head machine screws 50 are then screwed directly into the corresponding threaded holes on the mounting plate 45 through the through holes at the four corners of the lamp panel assembly 30, creating a rigid surface-to-surface connection between the lamp panel assembly 30 and the mounting plate 45, while simultaneously establishing a low thermal resistance conduction path. The mounting plate 45 is made of high thermal conductivity aluminum alloy, serving both heat dissipation and load-bearing functions. Four countersunk mounting holes are pre-drilled around its perimeter for subsequent quick attachment of the entire assembly to the existing lamp holders on the aircraft wingtip or tail.

[0036] The reflector 20 is a thin-walled annular component with a rounded rectangular outer contour. Its inner hole is slightly larger than the outer diameter of the light panel assembly 30, forming equidistant annular gaps. The inner wall of the reflector 20 is vacuum-plated with silver, achieving a reflectivity greater than 95%. During assembly, the reflector 20 is coaxially fitted around the light panel assembly 30, with its bottom surface completely flush against the upper surface of the fixing plate 45. It is then tightened circumferentially with four screws 50 to ensure the reflector 20 remains stable even under severe vibration. When the LED beads are powered on, the large-angle light from the side is efficiently reflected by the reflector 20 to the forward optical lens, increasing the effective luminous flux and meeting the navigation light distribution requirements.

[0037] Both nameplate 10 and nameplate 2 15 are rectangular anodized aluminum nameplates with the same thickness. Their lower surfaces are attached to the upper surface of the fixing plate 45, and each is fastened to the diagonal edge of the fixing plate 45 by a single screw 50. The upper surfaces of the two nameplates are flush with the upper surface of the reflector 20, which ensures a flat appearance and allows for laser marking to carry model, serial number and certification information.

[0038] All screws 50 are of the same specification, which simplifies spare parts management and facilitates on-site assembly and disassembly using a single tool. The countersunk holes around the mounting plate 45 ensure that the screw heads are below the lower surface of the plate, guaranteeing a flat contact surface between the component and the lamp holder and avoiding installation stress.

[0039] The dynamic working process is as follows: After the aircraft power is turned on, the external constant current drive circuit delivers a stable current to the lamp board assembly 30 through the solder pads on the edge of the fixing plate 45; the LED chip conducts forward and emits red, green or white light; heat is instantly conducted from the chip junction area to the aluminum substrate, then diffused to the fixing plate 45 through the thermally conductive adhesive layer, and finally transferred to the aircraft metal structure through the contact surface between the fixing plate 45 and the lamp holder, achieving continuous heat dissipation; at the same time, the light from the side of the LED is reflected multiple times by the inner wall of the reflector 20 and converges forward, and together with the direct light, it passes through the navigation light lens to form a light intensity distribution that meets the requirements of SAE AS8037; when the aircraft is running in a temperature range of -55℃ to +85℃ and a random vibration environment of 5Hz to 2000Hz, the stacked screw connection structure keeps the relative positions of each part unchanged, avoiding loosening or displacement; if the light source needs to be replaced for subsequent maintenance, only the four mounting screws 50 between the fixing plate 45 and the lamp holder need to be removed to take out the entire assembly, and the replacement can be completed by reversing the operation. The replacement time is less than two minutes, without disassembling the lamp housing or rewiring. Thus, this utility model achieves a combination of advantages in static structure, including minimalist layering, high thermal conductivity, optical enhancement, and rapid maintenance.

[0040] In some specific embodiments, the lamp panel assembly 30 has through holes at its four corners, allowing screws to be directly locked into the corresponding threaded holes of the fixing plate 45 to form a rigid connection.

[0041] In some specific embodiments, the inner wall of the reflector 20 is coated with a high-reflectivity coating, and its bottom surface is attached to the upper surface of the fixing plate 45 surface-to-surface and then fastened by circumferentially distributed screws.

[0042] In some specific embodiments, the lower surfaces of label 10 and label 2 15 are attached to the upper surface of the fixing plate 45, and each is positioned and fastened by a single screw.

[0043] In some specific embodiments, the central area of ​​the fixing plate 45 is a flat heat-conducting surface, which is used to achieve full-area thermal contact with the back of the lamp panel assembly 30.

[0044] In some specific embodiments, the screws are cylindrical head machine screws of the same specification that pass through all connection positions of the light panel assembly 30, reflector 20, sign 10, sign 2 15 and fixing plate 45.

[0045] In some specific embodiments, the outer contour of the reflector 20 is a rounded rectangular ring, and the shape of its inner hole forms an equidistant annular gap with the outer contour of the lamp panel assembly 30.

[0046] In some specific embodiments, sign 10 and sign 2 are of equal thickness, and their upper surfaces are flush with the upper surface of reflector 20 after installation.

[0047] In some specific embodiments, the mounting holes around the fixing plate 45 are countersunk holes, which are used to make the screw head lower than the lower surface of the plate to ensure a flat and close fit with the lamp holder.

[0048] In some specific embodiments, all connections of the light panel assembly 30, reflector 20, sign 1 10, and sign 2 15 on the fixing plate 45 are detachable screw connections, forming a stacked static structure.

[0049] In some specific embodiments, the four corners of the lamp panel assembly 30 are pre-drilled with circular through holes, the diameter of which matches the diameter of the shank of the cylindrical head machine screw 50. During assembly, the screw 50 passes through the through hole from top to bottom and is directly screwed into the threaded hole at the corresponding position of the fixing plate 45. The depth of the threaded hole is greater than half the thickness of the plate, thereby forming a rigid lock without adding an extra nut, so that the lamp panel assembly 30 and the fixing plate 45 maintain a high contact pressure and reduce thermal resistance.

[0050] In some specific embodiments, the reflector 20 adopts an injection-molded rounded rectangular ring structure, and its inner wall is formed with a high-reflectivity coating through a vacuum silver plating process. During the assembly stage, the bottom surface of the reflector 20 is kept in face-to-face contact with the upper surface of the fixing plate 45. Then, four screws 50 are evenly distributed around the circumference. The screws 50 pass through the pre-made countersunk holes on the bottom surface of the reflector 20 and are screwed into the threaded holes of the fixing plate 45. This ensures that the reflector 20 does not undergo circumferential displacement under vibration environment and provides complete mechanical support for the coating, avoiding the peeling of the reflective layer due to thermal expansion and contraction.

[0051] In some specific embodiments, both sign 10 and sign 2 are rectangular anodized aluminum nameplates with a thickness of 0.2mm. After the entire lower surface is coated with epoxy resin for temporary positioning, each is then fastened to the threaded boss on the diagonal edge of the fixing plate 45 by a single screw 50. The height of the boss is consistent with the thickness of the bottom surface of the reflector 20, ensuring that the upper surface of the two signs is flush with the upper surface of the reflector 20, with no steps in appearance, while reducing airflow resistance.

[0052] In some specific embodiments, the central area of ​​the fixing plate 45 is milled to form a flat heat-conducting surface with a surface roughness Ra≤0.8μm; the area of ​​this heat-conducting surface is slightly larger than the back of the lamp panel assembly 30, so that the back of the lamp panel assembly 30 can be fully attached, and the heat-conducting adhesive forms a continuous film under pressure, eliminating tiny air gaps and achieving full-area thermal contact.

[0053] In some specific embodiments, all connection points use the same specification of cylindrical head machine screws 50 with a thread diameter of M2 and a length of 4mm or 5mm depending on the thickness of the stack. The uniform specification design allows maintenance personnel to complete all disassembly and assembly with just one screwdriver, reducing the types of tools required for line replacement.

[0054] In some specific embodiments, the outer contour of the reflector 20 is a rounded rectangular ring, and the inner hole edge of the reflector 20 maintains a 1mm equidistant annular gap with the outer contour of the lamp panel assembly 30. This annular gap provides assembly tolerance for the lamp panel assembly 30 and allows the reflective surface of the inner wall of the reflector 20 to completely surround the LED light-emitting surface, thereby improving light collection efficiency.

[0055] In some specific embodiments, the first sign 10 and the second sign 15 are punched using the same mold, and the thickness tolerance is controlled within ±0.02 mm. After installation, the upper surfaces of the two signs and the upper surface of the reflector 20 are on the same plane, avoiding the formation of protrusions or depressions, and meeting the aerodynamic smoothness requirements of the aircraft's outer surface.

[0056] In some specific embodiments, the mounting holes around the fixing plate 45 are 90° countersunk holes, with a countersunk hole diameter 0.3 mm larger than the head diameter of the screw 50 and a depth 0.1 mm greater than the head height of the screw 50. When the screw 50 is tightened, the head is completely sunk into the countersunk hole, the lower surface of the fixing plate 45 remains flat, and it fits tightly with the aircraft light mount surface, preventing local stress concentration caused by the protrusion of the screw head.

[0057] In some specific embodiments, all connections between the light panel assembly 30, reflector 20, sign 1 10, sign 2 15 and fixing plate 45 are detachable screw connections, forming a stacked static structure; when disassembling, the screws 50 are loosened in reverse order, and each part can be separated layer by layer, achieving damage-free maintenance.

[0058] The dynamic working process is as follows: After the aircraft power is turned on, the constant current drive current flows into the lamp board assembly 30 through the edge pads of the fixing plate 45. The LED chip is forward biased and emits visible light. Heat is transferred from the chip junction area through the aluminum substrate and the thermally conductive adhesive layer to the fixing plate 45, and then diffused to the fuselage structure through the contact surface between the fixing plate 45 and the aircraft lamp holder, achieving continuous heat dissipation. At the same time, the large-angle light from the side is reflected by the high-reflectivity coating on the inner wall of the reflector 20 to the front lens, and superimposed with the direct light to form a light intensity distribution that meets aviation standards. When the aircraft is running in an environment with random vibrations of -55 ℃ to +85 ℃ and 5 Hz to 2000 Hz, the relative positions of each part remain unchanged under the preload of the screws 50. When replacement is required, simply loosen the mounting screws 50 between the fixing plate 45 and the lamp holder to remove the entire assembly. The replacement can be completed by reversing the operation. No soldering or rewiring is required throughout the process, and the replacement time is less than two minutes.

[0059] The working principle of this utility model is as follows:

[0060] Electrical start

[0061] The aircraft power system supplies a constant current to the light panel assembly via electrical pads on the edge of the mounting plate. The LED chips built into the light panel assembly are forward-biased under constant current drive, directly converting electrical energy into visible light to achieve the basic illumination function of the navigation light.

[0062] Optical enhancement

[0063] The light emitted by the LED chip is divided into two parts: one part shines directly into the lens in front, and the other part diverges to the side at a large angle. The side light is captured by the highly reflective coating on the inner wall of the coaxially surrounding reflector and reflected back to the front, superimposed with the direct light to form a light intensity distribution that meets aviation standards, improving luminous efficiency and satisfying color and angle requirements.

[0064] Heat conduction

[0065] The heat generated by the junction of the LED chip is first conducted longitudinally to the back side through the aluminum substrate, and then evenly diffused to the flat heat-conducting surface in the center of the fixing plate through the thermally conductive adhesive. The fixing plate is tightly attached to the aircraft metal lamp holder, and the heat continues to diffuse laterally to the airframe structure. With the help of the flight airflow, continuous heat dissipation is achieved, keeping the junction temperature below the upper limit of the allowable limit and suppressing light decay.

[0066] Mechanical holding

[0067] All components, including the light panel assembly, reflector, sign, and mounting plate, are fastened with screws of the same specification, forming a layered rigid structure. In the temperature cycle of -55℃ to +85℃ and random vibration environment of 5 Hz to 2000Hz experienced by the aircraft, the screw preload resists thermal expansion and contraction and vibration inertia, ensuring that the relative positions of each part remain unchanged and the optical axis is stable.

[0068] Quick maintenance

[0069] When the light source reaches its design life or malfunctions, simply loosen the mounting screws between the fixing plate and the lamp holder to remove the entire assembly at once. The replacement can be completed by reversing the operation, without disassembling the lamp housing or re-soldering the cables, achieving a quick "two-minute on-site" replacement.

[0070] Through the above electro-optical-thermal-mechanical synergistic mechanism, this utility model achieves the comprehensive goals of high luminous efficiency, long lifespan, lightweight design, and easy maintenance while meeting aviation standards.

[0071] Circuit schematic

[0072] U1 is the MCU control chip, specifically the S9S08EL32F1MTJ chip, which has 20 pins and 16 I / O ports, sufficient to handle all I / O signals. U2 is the power supply chip, specifically the LT3010EMS8E#PBF chip. U3 is the temperature sensor chip, specifically the DS18B20Z+ chip. DL1~DL4 are LED chips, specifically the XTEYGT-E0-0000-00000BLE3 chip. Other peripheral circuits consist of resistors, capacitors, diodes, etc. The circuit schematic is shown below. Figure 2 As shown.

[0073] 1) Implementation of heat dissipation structure

[0074] High-purity aluminum alloy is selected as the heat dissipation substrate material. By opening windows in a portion of the aluminum substrate on the back of the LED beads, and by using thermally conductive adhesive and mechanical screws, the aluminum substrate is made to fully contact the fixing plate, so that the heat generated by the lamp board is transferred to the lamp housing through the fixing plate.

[0075] 2) Implementation of optical structure

[0076] The reflector is made of PEI material with a chrome-plated surface to improve reflectivity. The shape and size of the reflector are optimized according to the light-emitting angle of the LED chips and the requirements of the optical lens, and it is manufactured through precision stamping and forming processes.

[0077] 3) Implementation of circuit design

[0078] The upper-level power board assembly uses a dedicated LED driver chip, with current parameters designed based on the LED's rated current and operating voltage. Overvoltage and overtemperature protection circuits are constructed by selecting appropriate resistors, temperature sensor chips, and an MCU.

[0079] 4) Implementation of mechanical structure

[0080] LED components consist of chips, a substrate, a reflector, a mounting plate, and screws. The packaged LED chips are soldered onto an aluminum substrate, and the LED assembly is then fixed to the mounting plate using thermally conductive adhesive and mechanical screws. The LED components are then secured to the lamp holder using screws through mounting holes on the mounting plate.

[0081] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0082] The all-screw-stacked structure—the light panel assembly 30, reflector 20, sign 1 10, sign 2 15 and fixing plate 45 are all fastened with screws of the same specification 50, without the need for welding or gluing. It can be reversibly disassembled and assembled on site, and the replacement time is less than 2 minutes, which significantly shortens the downtime for line maintenance.

[0083] High-efficiency heat dissipation path - LED heat travels directly from the aluminum substrate and thermally conductive adhesive to the flat thermally conductive surface in the center of the fixing plate at 45°, and then rapidly diffuses through the large-area metal contact between the fixing plate and the aircraft lamp holder, reducing the junction temperature by ≥15°C, effectively suppressing light decay, and extending the lifespan to ≥40,000 hours.

[0084] Optical gain – The silver-plated layer on the inner wall of the reflector 20 reflects large-angle side light to the front lens, which is superimposed with the direct light, effectively improving the light efficiency by ≥8%, achieving a longer recognition distance with the same power consumption, and reducing the load on the airborne power supply.

[0085] Lightweight and aerodynamically compatible – The overall weight is less than 60g. The countersunk holes around the 45mm mounting plate make the screw heads lower than the bottom surface. There are no protrusions on the outer surface. The nameplate and reflector are flush with the top surface, reducing flight drag and meeting the dual requirements of lightweight aircraft and smooth aerodynamics.

[0086] Environmental adaptability – The stacked screw preload structure has passed the DO-160G test of temperature cycling from -55℃ to +85℃ and random vibration from 5Hz to 2000Hz. The relative positions of the parts are not loose, the optical axis is stable, the reliability is high, and the failure and repair caused by vibration are reduced.

[0087] Universal interchangeability – The mounting plate has a 45mm mounting hole spacing that matches the existing navigation light socket, allowing direct replacement of the original incandescent or halogen unit without the need to modify the cable or lens, achieving “plug and play” and reducing upgrade costs.

[0088] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An integrated LED assembly for aircraft navigation lights, characterized in that, include: Light panel assembly (30), reflector (20), fixing plate (45), sign one (10), sign two (15) and screws; The lamp panel assembly (30) is a rectangular aluminum substrate, with LED beads encapsulated on the front and the back fastened to the upper surface of the center of the fixing plate (45) by thermally conductive adhesive and screws. The reflector (20) is in the shape of a thin-walled ring, coaxially surrounds the lamp panel assembly (30) and its bottom surface is screwed to the upper surface of the fixing plate (45); The first nameplate (10) and the second nameplate (15) are both rectangular nameplates, which are fastened to the diagonal edges of the fixing plate (45) by screws respectively; The fixing plate (45) is a flat rectangular plate with mounting holes around its perimeter, used to fix the overall assembly to the external lamp holder with screws.

2. The LED component according to claim 1, characterized in that: The lamp panel assembly (30) has through holes at its four corners, allowing screws to be directly locked into the corresponding threaded holes of the fixing plate (45) to form a rigid connection.

3. The LED component according to claim 1, characterized in that: The inner wall of the reflector (20) is coated with a high reflectivity layer. Its bottom surface is attached to the upper surface of the fixing plate (45) and then fastened by screws evenly distributed around the perimeter.

4. The LED component according to claim 1, characterized in that: The lower surfaces of sign 1 (10) and sign 2 (15) are attached to the upper surface of the fixing plate (45), and each is positioned and fastened by a single screw.

5. The LED component according to claim 1, characterized in that: The central area of ​​the fixing plate (45) is a flat heat-conducting surface, which is used to achieve full-area thermal contact with the back of the lamp panel assembly (30).

6. The LED component according to claim 1, characterized in that: The screws are cylindrical head machine screws of the same specification, which run through all connection positions of the lamp panel assembly (30), reflector (20), sign one (10), sign two (15) and fixing plate (45).

7. The LED component according to claim 1, characterized in that: The outer contour of the reflector (20) is a rounded rectangular ring, and the shape of its inner hole forms an equidistant annular gap with the outer contour of the lamp panel assembly (30).

8. The LED component according to claim 1, characterized in that: Sign 1 (10) and sign 2 (15) have the same thickness, and after installation, their upper surfaces are flush with the upper surface of the reflector (20).

9. The LED component according to claim 1, characterized in that: The mounting holes around the fixing plate (45) are countersunk holes, which are used to make the screw head lower than the lower surface of the plate to ensure that it fits flat and close to the lamp holder.

10. The LED component according to claim 1, characterized in that: All connections of the light panel assembly (30), reflector (20), sign one (10), and sign two (15) on the fixing plate (45) are detachable screw connections, forming a stacked static structure.

Images