Cut-off type anti-dazzle LED down lamp
By combining the design of a deep cup lampshade and an acrylic cover plate with a heat dissipation structure, the glare problem of LED downlights is solved, achieving soft lighting and efficient heat dissipation, improving visual comfort and lamp life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-10
AI Technical Summary
Existing LED downlights, when installed on low ceilings or within sight, can easily create glare spots, leading to a glare effect. The glare becomes more pronounced as the brightness increases, affecting visual comfort.
The deep cup lampshade design completely hides the light source. Combined with the frosted layer and anti-reflective coating of the acrylic cover plate, it forms a physical light-cutting structure to reduce direct light. At the same time, the heat dissipation efficiency is improved and the temperature of the lamp is reduced by the cooling fan, strip-shaped heat dissipation holes and T-shaped heat dissipation fins.
It significantly reduces glare, provides a soft and uniform lighting effect, reduces eye fatigue, improves visual comfort, and extends the life of the luminaire.
Smart Images
Figure CN223985092U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to LED down lamp technical field especially relates to a light cutting type anti -dazzle LED down lamp. BACKGROUND
[0002] LED down lamp is a kind of embedded lighting lamps, usually installed in the ceiling, to provide illumination in the manner of downward light projection, its design is compact, light soft, widely used in home, business and public space, with practicality and decorative, and because LED down lamp adopts semiconductor light emitting technology, life is up to 50,000 hours, significantly reduces replacement frequency and energy cost.
[0003] At present, when down lamp is installed in lower ceiling or directly in visual range, it is easy to form glaring light spot, which can cause visual discomfort and cause glare effect, and with the increase of brightness of LED down lamp, glare is more significant.
[0004] For the above problems, the utility model file proposes a light cutting type anti -dazzle LED down lamp. INVENTION CONTENTS
[0005] The utility model provides a light cutting type anti -dazzle LED down lamp, solve the existing technology when down lamp is installed in lower ceiling or directly in visual range, it is easy to form glaring light spot, which can cause visual discomfort and cause glare effect, and with the increase of brightness of LED down lamp, glare is more significant The shortcoming of.
[0006] The utility model provides the following technical scheme:
[0007] A light cutting type anti -dazzle LED down lamp, comprising:
[0008] LED down lamp body, the gap at the top of the LED down lamp body shell is detachably installed with the access cover by two cross bolts, the central portion of the access cover is provided with the installation port, and the heat dissipation fan matched with the inside of the LED down lamp body is embedded and installed in the installation port.
[0009] The bottom of the LED down lamp body is fixedly provided with a deep cup lampshade for hiding light source, the upper end of the inner wall of the deep cup lampshade is fixedly provided with an acrylic face shield plate, the surface of the acrylic face shield plate is provided with a frosted layer by chemical etching, and the surface of the frosted layer is uniformly covered with a reflection-reducing coating by physical vapor deposition.
[0010] In a possible design, two groups of strip-shaped heat dissipation holes for forming heat dissipation passages with the installation port are symmetrically arranged on the shell of the LED down lamp body.
[0011] In one possible design, multiple T-shaped heat dissipation fins are fixedly installed on the outer wall of the LED downlight body housing, and the surface of the T-shaped heat dissipation fins is provided with multiple indentations to further expand the heat dissipation area.
[0012] In one possible design, the bottom of the deep cup lampshade is fixedly provided with a narrow edge ring for better integration into the wall.
[0013] In one possible design, two mounting brackets are symmetrically fixed on the housing of the LED downlight body. The mounting brackets are equipped with downward-tightening torsion spring buckles, and the bottom end of the torsion spring buckles is wrapped with a rubber sleeve for anti-slip.
[0014] In one possible design, the antireflective coating is made of silicon dioxide.
[0015] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.
[0016] The working principle and usage process of this technical solution are as follows:
[0017] During installation, insert the torsion spring clip into the mounting hole in the ceiling. The spring force and the anti-slip effect of the rubber sleeve will make the downlight firmly installed on the ceiling. At the same time, the narrow edge ring at the bottom of the deep cup lampshade can make the downlight blend into the wall better.
[0018] LED downlights generate heat during operation. A cooling fan is embedded in the mounting port in the center of the inspection cover. When turned on, it can extract hot air from inside the LED downlight body. Two sets of strip-shaped heat dissipation holes are symmetrically arranged on the housing of the LED downlight body. They work together with the mounting port to form a heat dissipation path, allowing external cold air to enter the downlight body and accelerate heat dissipation. Multiple T-shaped heat dissipation fins are fixedly installed on the outer wall of the LED downlight body housing. Multiple indentations on their surface further expand the heat dissipation area and increase the contact area with air, thereby improving heat dissipation efficiency and quickly transferring the heat inside the downlight to the surrounding air.
[0019] Because the bottom of the LED downlight body is fixedly equipped with a deep cup lampshade, its depth design allows the LED light source to be completely built into the lampshade, forming a physical light-cutting structure that blocks the direct light path, reduces the possibility of the light source being directly exposed within the line of sight, and avoids the light directly shining into the eyes, thereby reducing glare. An acrylic mask plate is fixedly installed at the upper end of the inner wall of the deep cup lampshade. Its surface is chemically etched with a frosted layer. The frosted layer can destroy the specular reflection conditions, causing the light to diffuse, making the light more uniform and soft. The surface of the frosted layer is uniformly covered with an anti-reflection coating made of silicon dioxide through physical vapor deposition. This coating can reduce the reflectivity of the glass surface and reduce residual reflected light by utilizing the refractive index gradient characteristics, further reducing light reflection and glare, and improving visual comfort.
[0020] This utility model has the following beneficial effects:
[0021] This invention uses a deep cup lampshade to physically cut off the light source, combined with the frosted layer and anti-reflective coating of the acrylic mask panel. The triple anti-glare design can significantly reduce the generation of glare, provide a softer and more uniform lighting effect, reduce eye fatigue, and improve visual comfort. It is especially suitable for places with high requirements for light quality.
[0022] This invention effectively reduces the operating temperature of LED downlights, extends the lifespan of the lamps, and ensures stable performance by utilizing the synergistic effect of a cooling fan, strip-shaped heat dissipation holes, and T-shaped heat dissipation fins. Attached Figure Description
[0023] Figure 1 A three-dimensional structural diagram of a light-cutting anti-glare LED downlight provided in an embodiment of this utility model;
[0024] Figure 2 Another perspective structural schematic diagram of a light-cutting anti-glare LED downlight provided in an embodiment of this utility model;
[0025] Figure 3 A schematic diagram of a T-shaped heat sink fin structure for a light-cutting anti-glare LED downlight provided in an embodiment of this utility model;
[0026] Figure 4 This is a partial cross-sectional view of the acrylic mask panel of a light-cutting anti-glare LED downlight provided in an embodiment of the present invention.
[0027] Reference numerals: 1. LED downlight body; 2. Inspection cover; 3. Phillips head bolt; 4. Mounting port; 5. Cooling fan; 6. Strip-shaped heat dissipation hole; 7. T-shaped heat dissipation fins; 8. Dent; 9. Deep cup lampshade; 10. Acrylic cover plate; 11. Narrow edge ring; 12. Mounting bracket; 13. Torsion spring buckle; 14. Rubber sleeve; 15. Frosted layer; 16. Anti-reflective coating. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0030] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.
[0031] Example 1
[0032] Please refer to Figures 1-4 An LED downlight, comprising:
[0033] The LED downlight body 1, model E-NLED977, is made of all-aluminum die-casting. The top of the body has a pre-reserved notch and the inspection cover 2 can be detached and installed through two cross bolts 3. The inspection cover has an installation port 4 in the center and anti-slip buckles on its inner edge, so that the cooling fan 5 can be installed without additional fasteners after being embedded, which is convenient for later maintenance and replacement.
[0034] The deep cup lampshade 9 is fixed to the bottom of the main body by a screw connection. Its depth is designed to be more than 1.5 times the height of the light source, ensuring that the LED light source is completely hidden inside the lampshade. This physically blocks the direct glare path. The inner wall of the lampshade is made of frosted anodized aluminum, which further reduces internal reflection.
[0035] An acrylic faceplate 10 is fixedly installed on the upper end of the inner wall of the deep cup lampshade 9. After the acrylic faceplate 10 is injection molded, a uniformly distributed micron-level pit structure frosted layer 15 is formed on the surface by chemical etching process. The etching solution is a mixture of sulfuric acid and hydrofluoric acid with a concentration of 10%-15% by volume. The etching parameters are a temperature of 40-50℃ and a time of 15-20 minutes, forming a frosted layer 15 with a surface roughness Ra of 0.8-1.2μm. The frosted layer 15 causes diffuse reflection of light, avoids direct light spots, and reduces glare.
[0036] A silicon dioxide antireflective coating 16 is applied to the surface of the frosted layer by physical vapor deposition (PVD). The coating material is silicon dioxide with a refractive index n = 1.46. The parameters of the vacuum coating machine are set as follows: deposition rate 1-2 nm / s, temperature 150-200℃, and coating thickness 80-120 nm. This achieves a reflectivity ≤1% and a transmittance ≥98%, significantly improving the uniformity of light and reducing specular reflection glare.
[0037] The housing of the LED downlight body 1 is symmetrically provided with two sets of strip-shaped heat dissipation holes 6 to form a heat dissipation path with the mounting port 4. Each set contains 8-10 long strip-shaped through holes, which form a heat dissipation path with the mounting port 4 on the inspection cover 2. After CFD simulation optimization, the hole spacing is set to 8mm and the hole diameter is 3mm. While ensuring structural strength, the maximum airflow is achieved. When the cooling fan 5 is working, air can enter the downlight through the strip-shaped heat dissipation holes 6 and be discharged from the mounting port 4, realizing air circulation and thus removing heat.
[0038] Multiple T-shaped heat dissipation fins 7 are fixedly installed on the outer wall of the LED downlight body 1. The T-shaped heat dissipation fins 7 are made of aluminum alloy extrusion molding, and the surface is formed by hydraulic embossing with wavy indentations 8 with a spacing of 2mm. The fins are in contact with the internal heat dissipation module through thermal conductive silicone grease to ensure heat conduction efficiency. These indentations 8 further expand the heat dissipation area, increase the efficiency of heat dissipation, enable the downlight to dissipate heat better, and extend its service life.
[0039] Two mounting brackets 12 are symmetrically fixed on the housing of the LED downlight body 1. The mounting brackets 12 are designed as adjustable angle spring steel sheet structures with an electroplated anti-rust layer on the surface. The mounting brackets 12 are equipped with downward tightening torsion spring buckles 13. The pre-tightening force of the torsion spring buckles 13 is set to 15N to ensure that they can be inserted into the ceiling mounting hole with one hand. The bottom end of the torsion spring buckles 13 is wrapped with a rubber sleeve 14 for anti-slip. The rubber sleeve 14 wrapped with the bottom end of the buckle is made of silicone with a Shore hardness of 45A and a coefficient of friction ≥0.8 to prevent loosening after long-term use.
[0040] This application can be used for anti-glare design of LED downlights, and can also be used in other fields applicable to this application.
[0041] Example 2
[0042] Improvements based on Example 1:
[0043] A light-cutting anti-glare LED downlight, which is used in the field of LED downlights;
[0044] Please refer to Figures 1-2 The bottom of the deep cup lampshade 9 is fixed with a narrow edge ring 11 for better integration into the wall. The narrow edge ring 11 is made of elastic plastic and is fixed to the bottom edge of the deep cup lampshade by ultrasonic welding. Its width is only 6mm, so that the gap between the lamp and the ceiling is less than 3mm after the lamp is installed, which improves the aesthetics and prevents light leakage.
[0045] However, as is well known to those skilled in the art, the working principle and wiring method of the LED downlight body 1 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.
[0046] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0047] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A cut-off anti-glare LED downlight, characterized in that, Include: LED down lamp body (1), the LED down lamp body (1) is installed with the access cover (2) through two cross bolts (3) at the top of the shell gap, the central part of the access cover (2) is provided with a mounting port (4), and the heat dissipation fan (5) matched with the inside of the LED down lamp body (1) is embedded in the mounting port (4); The bottom of the LED down lamp body (1) is fixedly provided with a deep cup lampshade (9) for hiding light source, the upper end of the inner wall of the deep cup lampshade (9) is fixedly provided with an acrylic face shield plate (10), the surface of the acrylic face shield plate (10) is provided with a frosted layer (15) through chemical etching, and the surface of the frosted layer (15) is uniformly covered with a reflection-reducing coating (16) through physical vapor deposition.
2. The light-cutting anti-glare LED down lamp according to claim 1, characterized in that, Two groups of strip-shaped heat dissipation holes (6) are symmetrically arranged on the shell of the LED down lamp body (1) and are used for forming a heat dissipation passage matched with the mounting port (4).
3. The light-cutting anti-glare LED down lamp according to claim 1, characterized in that, A plurality of T-shaped heat dissipation fins (7) are fixedly arranged on the outer wall of the shell of the LED down lamp body (1), and the surface of the T-shaped heat dissipation fin (7) is provided with a plurality of concave marks (8) for further expanding the heat dissipation area.
4. The light-cutting anti-glare LED down lamp according to claim 1, characterized in that, The bottom of the deep cup lampshade (9) is fixedly provided with a narrow edge ring (11) for better integration into the wall surface.
5. The light-cutting anti-glare LED down lamp according to claim 1, characterized in that, Two mounting racks (12) are symmetrically fixedly arranged on the shell of the LED down lamp body (1), a downwardly tightened torsional spring buckle (13) is mounted on the mounting rack (12), and a rubber sleeve (14) for preventing sliding is fixedly wrapped at the bottom end of the torsional spring buckle (13).
6. The cut-off anti-glare LED downlight of claim 1, wherein, The reflection-reducing coating (16) is made of silicon dioxide.