Anti-dazzle barrel spotlight

Abstract

The utility model discloses an anti-dazzle barrel spotlight which comprises a lamp body, a light source plate, a support, a lens, a first pressing ring, a reflection cup assembly, a second pressing ring and a face ring. The light source plate is arranged in the lamp body, and a COB light source is arranged on the light source plate; the bracket is buckled with the light source plate; the lens is arranged in the bracket and is close to the light source plate; the light-emitting end of the lens is provided with a first light-emitting surface and a conical second light-emitting surface, and the included angle between the connecting line of one point at the top of the second light-emitting surface and one point at the edge of the first light-emitting surface and the plane where the first light-emitting surface is located ranges from 40 degrees to 50 degrees. The lens is arranged in the bracket; the first pressing ring is arranged on the lamp body; the second pressing ring is arranged on the reflection cup assembly, and the second pressing ring is buckled with the first pressing ring; the face ring is rotationally connected with the reflection cup assembly. According to the anti-dazzle barrel spotlight, 15%-20% of light rays are output from the central area of the lens, 80%-85% of light rays are directionally and evenly distributed on the edge area of the lens, the anti-dazzle effect is good, the dazzle value is smaller than 3, the lens is of a detachable structure, and different lenses can be replaced conveniently.

Description

Technical Field

[0001] This utility model relates to the field of anti-glare downlight technology, and in particular to an anti-glare downlight. Background Technology

[0002] Downlights, as common indoor recessed lighting fixtures, are widely used in key areas of shopping malls, exhibition halls, and homes, serving to provide precise illumination and create a comfortable atmosphere. However, existing downlight technologies generally suffer from optical and structural defects. On the one hand, the light-emitting surfaces of the lens tend to be on the same plane, causing over 70% of the luminous flux to be concentrated in the central area of ​​the lens. This results in overly concentrated and harsh light, easily producing glare. Measured glare ratings (UGR) are typically as high as 14 to 16, severely interfering with visual comfort. On the other hand, the lens assembly structure is poorly designed. Installation, maintenance, or replacement usually requires specialized tools such as screws, making assembly inconvenient. Furthermore, the overall lamp design is difficult to flexibly adapt to different lens specifications, failing to meet the increasingly diverse lighting needs of the market.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an anti-glare downlight, which aims to solve the technical problems of high glare value caused by excessive concentration of light flux in the lens, as well as low lens assembly efficiency and difficulty in adapting to a variety of lenses in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An anti-glare downlight includes:

[0007] The lamp body has a first receiving cavity inside;

[0008] A light source board is disposed in the first receiving cavity, and a COB light source is provided on the light source board; a heat dissipation fin is provided on the side of the lamp body away from the first receiving cavity;

[0009] The bracket has two first locking blocks in a "7" shape on its top. The light source board has a locking groove corresponding to the position of the first locking blocks. The first locking blocks are inserted into the locking groove to realize the installation of the bracket and the light source board.

[0010] A lens, housed within a support and positioned close to the light source plate, is used to reflect light emitted by the COB light source. The lens's emitting end has a first emitting surface and a conical second emitting surface surrounding the first emitting surface. The angle between the line connecting the top point of the second emitting surface and a point on the edge of the first emitting surface and the plane containing the first emitting surface is 40°–50°. The support bottom has a circular array of limiting blocks, and the lens bottom has a notch adapted to fit the limiting blocks. The limiting blocks engage with the notch to position the lens.

[0011] The first pressure ring is located on the lamp body and is fitted around the outer periphery of the lens;

[0012] A reflector assembly is disposed on the light-emitting side of the lens and is used to reflect the light reflected by the lens;

[0013] The second pressure ring is located on the reflector assembly and is fastened to the first pressure ring.

[0014] The face ring is rotatably connected to the reflector cup assembly, and two spring clips are symmetrically provided on the outer wall of the face ring.

[0015] Furthermore, the light-incident end of the lens is provided with a first light-incident surface and a second light-incident surface surrounding the first light-incident surface. Both the first light-incident surface and the first light-exit surface are convex spherical surfaces, and the curvature of the first light-incident surface is greater than the curvature of the first light-exit surface. The second light-incident surface is concave towards the central axis of the lens. The outer wall of the lens is provided with a total reflection surface, which is used to completely reflect the light refracted by the second light-incident surface to the second light-exit surface for emission.

[0016] Furthermore, the bottom of the second pressure ring is provided with a first flange extending inward, which abuts against the bottom of the bracket.

[0017] Furthermore, the light source board has a second receiving cavity for mounting the COB light source and a first wire hole communicating with the second receiving cavity, the first wire hole extending to the edge of the light source board; the lamp body has a second wire hole communicating with the first receiving cavity.

[0018] Furthermore, the light source board is provided with a guide block located below the first wire hole, and the guide block has a guide surface on the side facing the bracket.

[0019] Furthermore, the first pressure ring has an L-shaped groove on its peripheral wall; the second pressure ring has a slider that matches the L-shaped groove; a sealing ring is provided between the first pressure ring and the second pressure ring; wherein, by rotating the second pressure ring, the connection between the second pressure ring and the first pressure ring is locked or released through the cooperation of the slider and the L-shaped groove.

[0020] Furthermore, the reflector cup assembly includes a base and a reflector fastened within the base; the base has two coaxial through holes; two locking screws are screwed onto the second pressure ring, the locking screws passing through the through holes and forming a rotatable connection with the through holes; the base is provided with a clearance position for providing rotational space for the second pressure ring.

[0021] Furthermore, the outer wall of the reflector is arranged in a circumferential array with second locking blocks having a triangular cross-section. The base is provided with locking holes corresponding to the positions of the second locking blocks. The second locking blocks are inserted into the locking holes to achieve the fastening of the reflector and the base. There is a gap between the second pressure ring and the base.

[0022] Furthermore, a pull ring is rotatably connected inside the base, and the pull ring is located on the outside of the reflector; a positioning component for locking the position of the pull ring is provided inside the base.

[0023] Furthermore, a first annular groove is formed on the peripheral wall of the lamp body, and a decorative ring is embedded in the first annular groove.

[0024] Beneficial effects:

[0025] This utility model provides an anti-glare downlight with the following advantages: (1) The angle between the top of the second light-emitting surface of the lens and the plane where the first light-emitting surface is located is 40° to 50°, so that only 15% to 20% of the light is output from the central area of ​​the lens, and up to 80% to 85% of the light is evenly distributed in the edge area of ​​the lens, which greatly improves the anti-glare effect. The measured glare value UGR is less than 3; (2) Lenses of various specifications can be easily connected to the light source board through the adapter bracket, realizing the quick replacement of the lens, which significantly improves the adaptability of the downlight to different application scenarios. Attached Figure Description

[0026] Figure 1 Exploded view of the anti-glare spotlight provided by this utility model;

[0027] Figure 2 A cross-sectional view of the lens in the anti-glare downlight provided by this utility model;

[0028] Figure 3 A schematic diagram of the light output from the lens in the anti-glare downlight provided by this utility model;

[0029] Figure 4 The explosion of the lens and bracket in the anti-glare downlight provided by this utility model Figure 1 ;

[0030] Figure 5 The explosion of the lens and bracket in the anti-glare downlight provided by this utility model Figure 2 ;

[0031] Figure 6 Cross-sectional view of the anti-glare downlight provided by this utility model Figure 1 ;

[0032] Figure 7 The structural diagram of the anti-glare downlight provided by this utility model;

[0033] Figure 8 Cross-sectional view of the anti-glare downlight provided by this utility model Figure 2 ;

[0034] Figure 9 A partial exploded view of the anti-glare downlight provided by this utility model;

[0035] Figure 10 An exploded view of the reflector assembly in the anti-glare spotlight provided by this utility model;

[0036] Figure 11 Cross-sectional views of different types of lenses adapted to the anti-glare downlight provided by this utility model.

[0037] Reference numerals: Lamp body 1, First receiving cavity 11, Heat dissipation fin 12, Second wire hole 13, First annular groove 14, Decorative ring 15, Third wire hole 16, Light source plate 2, COB light source 21, Snap-fit ​​groove 22, Second receiving cavity 23, First wire hole 24, Guide block 25, Guide surface 251, Bracket 3, First locking block 31, Limiting block 32, Lens 4, First light emitting surface 41, Second light emitting surface 42, Notch 43, First light-incident surface 44, Second light-incident surface 45 5. Total reflection surface 46. First pressure ring 5. L-shaped groove 51. Reflector cup assembly 6. Base 61. Through hole 611. Locking hole 612. Clearance position 613. Reflector 62. Second locking block 621. Pull ring 63. Steel ball spring pin 64. Positioning post 65. Second pressure ring 7. First flange 71. Slider 72. Sealing ring 73. Locking screw 74. Washer 75. Third ring groove 76. Face ring 8. Spring piece 81. Second ring groove 82. Aluminum ring 9. Rear cover 10. Detailed Implementation

[0038] This utility model provides an anti-glare downlight. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0039] In the description of this utility model, it should be understood that the terms "upper," "lower," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0040] Please see Figures 1 to 11 As shown, this utility model provides an anti-glare downlight, including: a lamp body 1, a light source plate 2, a bracket 3, a lens 4, a first pressure ring 5, a reflector cup assembly 6, a second pressure ring 7, and a face ring 8; the lamp body 1 has a first receiving cavity 11; the light source plate 2 is disposed in the first receiving cavity 11, and the light source plate 2 is provided with a COB light source 21; the lamp body 1 has a heat dissipation fin 12 on the side away from the first receiving cavity 11; the top of the bracket 3 has two first locking blocks 31 with a "7" shape structure, and the light source plate 2 has a locking groove 22 corresponding to the position of the first locking blocks 31, the first locking blocks 31 are locked into the locking groove 22 to realize the installation of the bracket 3 and the light source plate 2; the lens 4 is disposed in the bracket 3 and close to the light source plate 2, and is used to reflect the light emitted by the COB light source 21; the... The light-emitting end of the lens 4 is provided with a first light-emitting surface 41 and a conical second light-emitting surface 42 arranged around the first light-emitting surface 41. The angle α between the line connecting the top point of the second light-emitting surface 42 and the edge point of the first light-emitting surface 41 and the plane where the first light-emitting surface 41 is located is 40° to 50°. The bottom of the bracket 3 is provided with a circumferential array of limiting blocks 32. The bottom of the lens 4 is provided with a notch 43 that matches the limiting blocks 32. The limiting blocks 32 are inserted into the notch 43 to position the lens 4. The lens 4 is fixed by the bracket 3, and the quick replacement of the lens 4 is realized through the fastening connection between the bracket 3 and the light source plate 2. Furthermore, different lenses 4 can be installed on any light source plate 2 with the bracket 3, improving the compatibility of the downlight with lenses 4 of different specifications and meeting market demand.

[0041] The first pressure ring 5 is disposed on the lamp body 1 and sleeved on the outer periphery of the lens 4; the reflector cup assembly 6 is disposed on the light-emitting side of the lens 4 and is used to reflect the light reflected by the lens 4; the second pressure ring 7 is disposed on the reflector cup assembly 6 and is fastened to the first pressure ring 5; the face ring 8 is rotatably connected to the reflector cup assembly 6. Specifically, the outer wall of the reflector cup assembly 6 is provided with a circumferentially arranged steel ball spring pin 64, and the face ring 8 is provided with a second annular groove 82. The steel ball spring pin 64 slides along the second annular groove 82 to realize the rotatable connection between the face ring 8 and the reflector cup assembly 6. The steel ball spring pin 64 has a self-expanding characteristic. When the steel ball is pressed into its interior, the reflector cup assembly 6 separates from the face ring 8; the outer wall of the face ring 8 is symmetrically provided with two spring pieces 81.

[0042] During assembly, the light source plate 2 equipped with COB light source 21 is installed into the first receiving cavity 11 of the lamp body 1, the first pressure ring 5 is installed onto the lamp body 1, and the lens 4 is installed into the bracket 3. Specifically, the limiting block 32 at the bottom of the bracket 3 is matched with the notch 43 at the bottom of the lens 4 to achieve positioning, so as to prevent the lens 4 from shifting or rotating circumferentially. Then, the two "7"-shaped first locking blocks 31 on the bracket 3 are aligned with the locking groove 22 of the light source plate 2 and inserted. Rotating the bracket 3 at a certain angle can complete the locking of the bracket 3 and the light source plate 2. This structure can achieve quick disassembly and assembly of the lens 4 assembly and flexible adaptation to different specifications of lens 4 without auxiliary tools. Subsequently, the second pressure ring 7 equipped with the reflector cup assembly 6 is fastened to the first pressure ring 5. At the same time, the circumferential array steel ball spring pin 64 on the outer wall of the reflector cup assembly 6 is inserted into the second annular groove 82 on the inner wall of the face ring 8, forming a relatively rotatable elastic connection, thus realizing the assembly of the downlight. During on-site installation, the downlight is inserted into the pre-set light hole in the ceiling. The two symmetrical spring pieces 81 on the outer side of the face ring 8 are compressed and then elastically reset, tightly abutting against the back of the ceiling to complete the secure installation.

[0043] In the above description, the second light-emitting surface 42 is conical and is arranged around the first light-emitting surface 41, such as... Figure 2 , 3 As shown, the angle α between the line connecting the top edge of the second light-emitting surface 42 and the other edge of the first light-emitting surface 41 and the horizontal plane is 40° to 50°, so that the light reflected by the first light-emitting surface 41 is 15% to 20% of the light emitted by the COB light source 21, and the light reflected by the second light-emitting surface 42 is 85% to 80% of the light emitted by the COB. Most of the light is emitted from the edge of the lens 4, effectively dispersing the light intensity distribution and providing good anti-glare effect. According to actual measurements, this structure reduces the glare value UGR to below 3, breaking through the bottleneck of the existing technology where the glare value UGR is 14 to 16. It can achieve the effect of optical anti-glare by changing the structure of the lens 4.

[0044] In a preferred embodiment, see [reference] Figure 2 , 3The lens 4 has a first light-incident surface 44 and a second light-incident surface 45 surrounding the first light-incident surface 44. Both the first light-incident surface 44 and the first light-out surface 41 are convex spherical surfaces, and the curvature of the first light-incident surface 44 is greater than that of the first light-out surface 41. That is, the first light-out surface 41 is flatter than the first light-incident surface 44, so that the change in the refraction angle of the central light is smaller, forming a narrow and concentrated positive light output (about 15-20%) luminous flux, accurately projecting light onto the core illumination area, and greatly suppressing unnecessary lateral astigmatism. The second light-incident surface 45 is concave towards the central axis of the lens 4. The outer wall of the lens 4 is provided with a total reflection surface 46, which is used to completely reflect the light refracted by the second light-incident surface 45 to the second light-out surface 42 for emission. Specifically, on the horizontal projection surface, the projected area of ​​the first incident surface 44 is approximately the same as the projected area of ​​the first emitting surface 41, ensuring that light rays entering through the first incident surface 44 exit through the first emitting surface 41, and light rays entering through the second incident surface 45 exit through the second emitting surface 42 after total internal reflection. The combination of the second incident surface 45 and the total internal reflection surface 46 forms a highly efficient optical path: when light emitted from the COB light source 21 enters, the second incident surface 45 refracts most of the incident light to the total internal reflection surface 46, and through total internal reflection, precisely guides it to the conical second emitting surface 42 for edge diffusion and emission, thereby significantly improving light utilization and enhancing the anti-glare effect, achieving an ultra-low glare value UGR < 3. The aforementioned dual-path synergy significantly improves light utilization and enhances anti-glare effect, achieving an ultra-low glare value of UGR < 3. At the same time, the narrow beam formed by the flat first light-emitting surface 41 and the wide-angle soft light of the conical second light-emitting surface 42 blend naturally, eliminating harsh light spot boundaries and forming a comfortable light field with uniform and gradual brightness from the center to the edge in the illumination area.

[0045] In a preferred embodiment, see [reference] Figure 8 The second pressure ring 7 has a first flange 71 extending inward at its bottom, which abuts against the bottom of the bracket 3, effectively limiting the risk of downward displacement of the lens 4 and bracket 3 assembly due to vibration or misoperation. (See also...) Figure 11 To address the height differences of lenses 4 of different specifications, an aluminum ring 9 is added between the bottom of the lens 4 and the first flange 71. The inner wall of the aluminum ring 9 is coated with a high-reflection coating to prevent some light from entering the second pressure ring 7 and causing light energy loss, and also serves as a decorative function to enhance the visual quality of the lamp body 1.

[0046] In a preferred embodiment, see [reference] Figure 4 , 5The light source plate 2 has a second receiving cavity 23 for mounting the COB light source 21 and a first wire hole 24 communicating with the second receiving cavity 23. The first wire hole 24 extends to the edge of the light source plate 2. The lamp body 1 has a second wire hole 13 communicating with the first receiving cavity 11. The COB light source 21 is mounted in the second receiving cavity 23, and its back is in close contact with the top of the first receiving cavity 11 of the lamp body 1, forming an efficient heat conduction path. The wires electrically connected to the COB light source 21 pass through the first wire hole 24 and the second wire hole 13 in sequence and are led out to the outside of the lamp body 1, which facilitates wire routing.

[0047] Preferably, see Figure 1 , 6 It also includes a rear cover 10 located on the top of the lamp body 1. The lower surface of the rear cover 10 abuts against the top of the heat dissipation fin 12. Both the lamp body 1 and the rear cover 10 are aluminum components. The heat generated by the COB light source 21 is conducted to the heat dissipation fin 12 through the lamp body 1 and is finally dissipated quickly by the rear cover 10. The rear cover 10 also completely covers the top of the heat dissipation fin 12, effectively preventing dust accumulation and maintaining heat dissipation efficiency.

[0048] Specifically, see Figure 6 The lamp body 1 has a third wire hole 16 on its wall. The wires are led out to the outside of the lamp body 1 through the second wire hole 13 and the third wire hole 16, so as to meet the flexible wiring requirements of lateral wiring.

[0049] Further, see Figure 5 The light source plate 2 is provided with a guide block 25 located below the first wire hole 24. The upper surface of the guide block 25 precisely forms the lower wall structure of the first wire hole 24, which not only significantly enhances the overall structural strength of the light source plate 2, but also reduces the installation height of the light source plate 2 through three-dimensional integrated design. The guide block 25 is provided with a guide surface 251 on the side facing the bracket 3. During the installation of the bracket 3, this double inclined surface structure can accurately guide the positioning and docking of the bracket 3 locking block and the light source plate 2 locking groove 22, which greatly improves the assembly efficiency and installation accuracy.

[0050] In a preferred embodiment, see [reference] Figure 9The first pressure ring 5 has an L-shaped groove 51 on its peripheral wall; the second pressure ring 7 has a slider 72 that matches the L-shaped groove 51; a sealing ring 73 is provided between the first pressure ring 5 and the second pressure ring 7; wherein, rotating the second pressure ring 7 locks or releases the connection between the second pressure ring 7 and the first pressure ring 5 by engaging the slider 72 with the L-shaped groove 51. During installation, the two sliders 72 on the second pressure ring 7 are aligned with the vertical section of the L-shaped groove 51 on the first pressure ring 5 and inserted. Rotating the second pressure ring 7 at a certain angle will slide the sliders 72 into the horizontal section of the L-shaped groove 51, thus locking the second pressure ring 7 and the first pressure ring 5. In the locked state, the engagement and compression of the first pressure ring 5 and the second pressure ring 7 forces the sealing ring 73 to deform, forming a damping force that continuously presses the slider 72, effectively preventing the slider 72 from accidentally coming out of the horizontal section of the L-shaped groove 51 due to vibration or external impact, ensuring high stability of the connection between the first pressure ring 5 and the second pressure ring 7. The above settings simultaneously achieve the dual advantages of rapid tool-free assembly and disassembly, as well as vibration resistance and anti-loosening.

[0051] Specifically, the second pressure ring 7 is provided with a third annular groove 76, and the sealing ring 73 is embedded in the third annular groove 76 to make the sealing ring 73 installed stably.

[0052] In a preferred embodiment, see [reference] Figure 8 , 9 10. The reflector cup assembly 6 includes a base 61 and a reflector 62 fastened within the base 61. The base 61 has two coaxial through holes 611. Two locking screws 74 are screwed onto the second pressure ring 7, passing through the through holes 611 and forming a rotatable connection. The base 61 has a clearance position 613 to provide rotational space for the second pressure ring 7. Rotating the second pressure ring 7 causes the lamp body 1 and the entire optical system to rotate around the locking screws 74, adjusting the light emission angle of the COB light source 21. After positioning, the locking screws 74 are tightened, pressing against the through holes 611 to lock the second pressure ring 7 onto the base 61.

[0053] Preferably, see Figure 8 Each locking screw 74 is fitted with a washer 75, which is located between the base 61 and the second pressure ring 7. After the locking screw 74 is tightened, the washer 75 is compressed and undergoes elastic deformation. The frictional damping formed by the elastic deformation immediately locks the rotation mechanism, ensuring rigid fixation after angle adjustment. When the downlight is embedded in the ceiling and a secondary angle adjustment is performed, the damping mechanism of the washer 75 can maintain the positioning stability of the lamp body 1, allowing customers to adjust the light emission angle of the COB light source 21 at any time as needed.

[0054] In a preferred embodiment, see [reference] Figure 10The reflector 62 has a circumferential array of second locking blocks 621 with a triangular cross-section on its outer wall. The base 61 has locking holes 612 corresponding to the positions of the second locking blocks 621. The second locking blocks 621 engage with the locking holes 612 to achieve a fastening connection between the reflector 62 and the base 61. A gap exists between the second pressure ring 7 and the base 61. By engaging the second locking blocks 621 with the locking holes 612, a reliable fastening connection is achieved between the reflector 62 and the base 61, forming a detachable connection. When the downlight is already installed on the ceiling, the user can reach into this gap, grip the top of the reflector 62 with their fingers, and pull down slightly to easily release the fastening and remove the reflector 62 from the base 61.

[0055] Further, see Figure 10 The base 61 is internally connected to a pull ring 63, which is located on the outside of the reflector 62. When the reflector 62 is removed, the pull ring 63 is exposed. Pulling down the pull ring 63 will cause the steel ball spring pin 64 on the base 61 to automatically retract and disengage from the second annular groove 82 of the face ring 8, thus achieving the function of quick disassembly of the entire lamp body 1. The operation is simple and quick. The base 61 is provided with a positioning component to lock the position of the pull ring 63. The positioning component includes positioning posts 65 arranged in a triangle. The middle part of the pull ring 63 is locked between the three positioning posts 65 to prevent the pull ring 63 from sagging due to its own weight and affecting the installation of the reflector 62.

[0056] In a preferred embodiment, see [reference] Figure 1 , 7 The lamp body 1 has a first annular groove 14 on its peripheral wall, and a decorative ring 15 is embedded in the first annular groove 14. The decorative ring 15 facilitates quick identification of the type of lens 4 installed in the lamp body 1, and also makes its appearance design and color coordinated with the base 61, thereby significantly improving the overall visual experience and aesthetics of the downlight.

[0057] In summary, this invention, by setting a first light-incident surface 44 and a second light-exit surface 42 at the light-incident end of the lens 4, setting a first light-exit surface 41 and a second light-exit surface 42 at its light-exit end, and setting a total reflection surface 46 on the outer wall, and the angle α between the line connecting the top point of the second light-exit surface 42 and a point on the edge of the first light-exit surface 41 and the plane where the first light-exit surface 41 is located is 40° to 50°, allows a small portion of the light emitted by the COB light source 21 to directly enter through the first light-incident surface 44 and exit the central light spot from the first light-exit surface 41; while most of the light enters the lens 4 through the first light-incident surface 44 and is completely reflected and guided by the total reflection surface 46, and finally forms an edge light effect by the second light-exit surface 42, accurately achieving the required light distribution ratio: only 15% to 20% of the light is output from the central area of ​​the lens 4, and up to 80% to 85% of the light is directionally and uniformly distributed in the edge area of ​​the lens 4, greatly improving the anti-glare effect, and the measured glare value UGR is less than 3. Meanwhile, the overall structure achieves high modularity and adjustability: various lens specifications 4 are easily connected to the light source board 2 via the adapter bracket 3, enabling quick replacement of the lens 4 and significantly improving the adaptability of the downlight to different application scenarios. Combined with key linkage design: the snap-fit ​​structure between the first pressure ring 5 and the second pressure ring 7, the rotational connection structure between the second pressure ring 7 and the base 61, and the snap-fit ​​connection structure between the reflector 62 and the base 61, together enable the COB light source 21 to be adjusted as needed even after installation on the ceiling, and support users to easily disassemble or replace the main components of the downlight, fully meeting the needs of functionality, maintainability, and market diversity.

[0058] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. An anti-glare downlight, characterized in that, include: The lamp body (1) has a first receiving cavity (11) inside; A light source plate (2) is disposed in the first receiving cavity (11), and a COB light source (21) is provided on the light source plate (2); a heat dissipation fin (12) is provided on the side of the lamp body (1) away from the first receiving cavity (11); The bracket (3) has two first locking blocks (31) in the shape of "7" on its top. The light source plate (2) has a locking groove (22) corresponding to the position of the first locking block (31). The first locking block (31) is inserted into the locking groove (22) to realize the installation of the bracket (3) and the light source plate (2). The lens (4) is located inside the bracket (3) and close to the light source plate (2) to reflect the light emitted by the COB light source (21). The light-emitting end of the lens (4) is provided with a first light-emitting surface (41) and a conical second light-emitting surface (42) arranged around the first light-emitting surface (41). The angle between the line connecting the top point of the second light-emitting surface (42) and the edge point of the first light-emitting surface (41) and the plane where the first light-emitting surface (41) is located is 40° to 50°. The bottom of the bracket (3) is provided with a circumferential array of limiting blocks (32). The bottom of the lens (4) is provided with a notch (43) that matches the limiting block (32). The limiting block (32) is inserted into the notch (43) to position the lens (4). The first pressure ring (5) is provided on the lamp body (1) and sleeved on the outer periphery of the lens (4); A reflector assembly (6) is disposed on the light-emitting side of the lens (4) for reflecting the light reflected by the lens (4); The second pressure ring (7) is provided on the reflector cup assembly (6), and the second pressure ring (7) is fastened to the first pressure ring (5); The face ring (8) is rotatably connected to the reflector cup assembly (6), and two spring pieces (81) are symmetrically provided on the outer wall of the face ring (8).

2. The anti-glare downlight according to claim 1, characterized in that, The lens (4) has a first light-incident surface (44) and a second light-incident surface (45) surrounding the first light-incident surface (44). The first light-incident surface (44) and the first light-out surface (41) are both convex spherical surfaces, and the curvature of the first light-incident surface (44) is greater than the curvature of the first light-out surface (41). The second light-incident surface (45) is concave towards the central axis of the lens (4). The outer wall of the lens (4) is provided with a total reflection surface (46) for totally reflecting the light refracted by the second light-incident surface (45) to the second light-out surface (42) for emission.

3. The anti-glare downlight according to claim 1, characterized in that, The second pressure ring (7) has a first flange (71) extending inward at the bottom, and the first flange (71) abuts against the bottom of the bracket (3).

4. The anti-glare downlight according to claim 1, characterized in that, The light source plate (2) has a second receiving cavity (23) for mounting the COB light source (21) and a first wire hole (24) communicating with the second receiving cavity (23). The first wire hole (24) extends to the edge of the light source plate (2). The lamp body (1) has a second wire hole (13) communicating with the first receiving cavity (11).

5. The anti-glare downlight according to claim 4, characterized in that, The light source plate (2) is provided with a guide block (25) located below the first wire hole (24), and the guide block (25) has a guide surface (251) on the side facing the bracket (3).

6. The anti-glare downlight according to claim 1, characterized in that, The first pressure ring (5) has an L-shaped groove (51) on its peripheral wall; the second pressure ring (7) has a slider (72) that matches the L-shaped groove (51); a sealing ring (73) is provided between the first pressure ring (5) and the second pressure ring (7); wherein, by rotating the second pressure ring (7), the connection between the second pressure ring (7) and the first pressure ring (5) is locked or released through the cooperation of the slider (72) and the L-shaped groove (51).

7. The anti-glare downlight according to claim 1, characterized in that, The reflector cup assembly (6) includes a base (61) and a reflector (62) fastened inside the base (61); the base (61) has two coaxial through holes (611); the second pressure ring (7) is screwed with two locking screws (74), the locking screws (74) pass through the through holes (611) respectively and form a rotatable connection with the through holes (611); the base (61) is provided with a clearance position (613) for providing rotation space for the second pressure ring (7).

8. The anti-glare downlight according to claim 7, characterized in that, The outer wall of the reflector (62) is arranged with a second locking block (621) with a triangular cross-section in a circular array. The base (61) is provided with a locking hole (612) corresponding to the position of the second locking block (621). The second locking block (621) is inserted into the locking hole (612) to realize the fastening between the reflector (62) and the base (61). There is a gap between the second pressure ring (7) and the base (61).

9. The anti-glare downlight according to claim 7, characterized in that, The base (61) is rotatably connected to a pull ring (63), and the pull ring (63) is located on the outside of the reflector (62); the base (61) is provided with a positioning component for locking the position of the pull ring (63).

10. The anti-glare downlight according to claim 1, characterized in that, The lamp body (1) has a first annular groove (14) on its peripheral wall, and a decorative ring (15) is embedded in the first annular groove (14).

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