Wide angle coverage led wash wall washer

Abstract

The utility model discloses wide-angle covering LED wall washing lamp relates to lighting device technical field, including the casing of strip shape and the end cover of setting in the both ends of casing, and the light -transmitting cover plate is encapsulated at the light outlet of casing, and the inside installation of casing has LED light source module and driving power, is equipped with the power connection of extending from the casing backplate on driving power, LED light source module includes aluminium base plate and multiple LED chips of array setting on aluminium base plate, is equipped with the wide-angle optical lens of covering LED chip on aluminium base plate, and the light -emitting surface of wide-angle optical lens is structured as arc curved surface, is used for diffusing the light of LED chip to 110 degree 130 degree wide-angle light beam in the first plane perpendicular with the long axis direction of lamp, and is controlled as 15 degree 30 degree narrow-angle light beam in the second plane parallel with the long axis direction of lamp, the utility model discloses the optical lens of setting, has improved the luminous angle of single lamp, thereby can even illumination adjacent 90 degree right angle two -sided wall body, has eliminated the dark area of corner.

Description

Technical Field

[0001] This utility model relates to the field of lighting device technology, specifically to a wide-angle LED wall washer light. Background Technology

[0002] LED wall washer lights are widely used for outlining and creating ambiance on building facades, bridges, and landscapes due to their energy efficiency, long lifespan, and rich colors. Traditional LED wall washer lights typically use a single secondary optical lens (such as a convex lens or a conventional polarizing lens) to distribute the light emitted by the LED light source. Their light emission angle is usually designed between 30° and 60° to achieve a relatively concentrated "wall-washing" effect with a long illumination distance.

[0003] However, in practical applications and installation, when it is necessary to illuminate a 90° right-angle corner of a building, traditional wall washer lights, due to their limited beam angle, cannot simultaneously and evenly illuminate two adjacent vertical walls, regardless of which side they are installed from. The light will form obvious dark areas or uneven brightness at the corner, which will destroy the overall lighting effect. Often, two lights need to be installed to illuminate the two surfaces separately, which increases the cost and installation complexity. Utility Model Content

[0004] The purpose of this invention is to provide a wide-angle LED wall washer light to solve the problems of uneven illumination caused by the limited installation positions of traditional wall washer lights at right angles and corners.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wide-angle LED wall washer light, comprising a long strip-shaped housing and end caps disposed at both ends of the housing, a light-transmitting cover plate being encapsulated at the light outlet of the housing, an LED light source module and a driving power supply being installed inside the housing, and a power connector extending from the back plate of the housing being provided on the driving power supply.

[0006] The LED light source module includes an aluminum substrate and a plurality of LED chips arrayed on the aluminum substrate. The aluminum substrate is provided with a wide-angle optical lens covering the LED chips. The light-emitting surface of the wide-angle optical lens is constructed as an arc-shaped curved surface to diffuse the light emitted by the LED chips into a wide-angle beam of 110°-130° in a first plane perpendicular to the long axis of the lamp, and to control it into a narrow-angle beam of 15°-30° in a second plane parallel to the long axis of the lamp.

[0007] Furthermore, the end cap is detachably connected to the housing by screws, and the wide-angle optical lens is a PC material lens that is injection molded in one piece, with a cavity on its light-incident surface for accommodating the LED chip.

[0008] Furthermore, the contour line of the arc-shaped surface of the light-emitting surface of the wide-angle optical lens in the first plane is a composite surface composed of multiple curves with different curvatures smoothly connected.

[0009] Furthermore, the wide-angle optical lens composite surface has refractive structures at both ends for guiding light to the side, so that the angle between the emission direction of some light rays and the normal direction of the light emission surface of the lamp is greater than 60°.

[0010] Furthermore, the wide-angle optical lens forms a wide-angle beam of 120° within the first plane.

[0011] Furthermore, the housing is made of aluminum alloy and has heat dissipation fins on its outer back side. The aluminum substrate is tightly attached to the inner wall of the housing by thermally conductive silicone grease.

[0012] Furthermore, the back of the housing is symmetrically provided with horizontal slots and mounting brackets. The mounting brackets are inserted into the slots and detachably connected to the housing by screws. The bottom of the mounting brackets is provided with an adjustment bracket. A butterfly screw is provided between the adjustment brackets and the mounting brackets. The adjustment brackets are provided with locking adjustment holes with a vertical cross section of "U".

[0013] Compared with the prior art, the wide-angle LED wall washer provided by this utility model has an LED light source module installed inside the housing. The LED light source module includes LED chips. When light is emitted, it is re-distributed by a specially designed wide-angle optical lens. The curved surface of the wide-angle optical lens re-distributes the light to form an asymmetrical light pattern with a wide angle of 110°-130° in the vertical direction and a narrow angle of 15°-30° in the horizontal direction. The wide vertical beam angle allows a single lamp to simultaneously and evenly illuminate two adjacent 90° right-angle walls. The light transitions smoothly at the corners, eliminating dark areas and shadows, and achieving the effect of outlining right-angle contours.

[0014] Moreover, when installed at close range, the ultra-wide beam angle allows the light to spread quickly even at the installation position close to the wall, avoiding the formation of "light spots" that are too bright in the center and too dark at the top and bottom. This achieves an ideal wall washing effect with uniform brightness and smooth transition from top to bottom on the entire illuminated wall surface, thus improving the utilization rate of light energy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1Schematic diagram of the overall wide-angle coverage LED wall washer light structure provided in this embodiment of the utility model Figure 1 ;

[0017] Figure 2 Schematic diagram of the overall wide-angle coverage LED wall washer light structure provided in this embodiment of the utility model Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the overall internal structure of the housing provided in an embodiment of the present utility model;

[0019] Figure 4 A schematic diagram of the LED light source module component structure provided in this embodiment of the utility model;

[0020] Figure 5 A schematic diagram illustrating the light output effect of the wall washer lamp provided in this embodiment of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the mounting bracket and adjustment bracket provided in the embodiments of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Housing; 2. End cap; 3. Light-transmitting cover plate; 4. LED light source module; 4-1. Aluminum substrate; 4-2. LED chip; 5. Power connector; 6. Wide-angle optical lens; 7. Slot; 8. Mounting bracket; 9. Adjustment bracket; 10. Wing screw; 11. Locking adjustment hole. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] As attached Figure 1 To be continued Figure 6 As shown:

[0026] Example 1:

[0027] This utility model provides a wide-angle LED wall washer light, including a long strip-shaped housing 1 and end caps 2 disposed at both ends of the housing 1. A light-transmitting cover plate 3 is encapsulated at the light outlet of the housing 1. An LED light source module 4 and a driving power supply are installed inside the housing 1. The driving power supply is provided with a power connector 5 extending from the back plate of the housing 1.

[0028] The LED light source module 4 includes an aluminum substrate 4-1 and a plurality of LED chips 4-2 arrayed on the aluminum substrate 4-1. The aluminum substrate 4-1 is provided with a wide-angle optical lens 6 covering the LED chips 4-2. The light-emitting surface of the wide-angle optical lens 6 is constructed as an arc-shaped curved surface to diffuse the light emitted by the LED chips 4-2 into a wide-angle beam of 110°-130° in a first plane perpendicular to the long axis of the lamp, and to control it into a narrow-angle beam of 15°-30° in a second plane parallel to the long axis of the lamp.

[0029] It should be noted that: by installing an LED light source module 4 inside the housing 1, which includes LED chips 4-2, when light is emitted, it passes through a specially designed wide-angle optical lens 6. The curved surface of the wide-angle optical lens 6 re-distributes the light, forming an asymmetrical light pattern with a wide angle of 110°-130° in the vertical direction and a narrow angle of 15°-30° in the horizontal direction. The wide vertical beam angle allows a single lamp to simultaneously and evenly illuminate two adjacent 90° right-angle walls. The light transitions smoothly at the corners, eliminating dark areas and shadows, and achieving the effect of outlining right-angle contours.

[0030] Moreover, when installed at close range, the ultra-wide beam angle allows the light to spread quickly even at the installation position close to the wall, avoiding the formation of "light spots" that are too bright in the center and too dark at the top and bottom. This achieves an ideal wall washing effect with uniform brightness and smooth transition from top to bottom on the entire illuminated wall surface, thus improving the utilization rate of light energy.

[0031] In this embodiment: the end cap 2 is detachably connected to the housing 1 by screws, and the wide-angle optical lens 6 is a PC material lens that is injection molded in one piece, and its light-incident surface is provided with a cavity for accommodating the LED chip 4-2.

[0032] It should be noted that the end cap 2 is connected to the housing 1 by screws, which facilitates the disassembly and maintenance of internal components, simplifies the process of replacing the driver power supply or LED light source module 4 in the later stage, and reduces maintenance costs.

[0033] The wide-angle optical lens 6 is made of PC (polycarbonate) material through one-time injection molding. PC material has excellent weather resistance, high light transmittance and impact resistance, and can be used for a long time in harsh outdoor environments.

[0034] The one-time injection molding process ensures the consistency of optical precision for each lens, improves production efficiency, and the concave cavity set on the light-incident surface can accurately position the LED chip 4-2, ensuring optical center alignment, minimizing light loss, and improving light efficiency.

[0035] In this embodiment: the contour line of the arc-shaped surface of the light-emitting surface of the wide-angle optical lens 6 in the first plane is a composite surface composed of multiple curves with different curvatures smoothly connected.

[0036] It should be noted that this composite surface is not a simple sphere or aspherical surface, but rather a smooth transition formed by multiple curves with different radii of curvature, optimized and designed by optical software. This specially designed composite surface can more precisely and efficiently control the light emitted by the LED, perform differentiated light distribution for light at different angles, effectively correct aberrations, and ensure that the resulting ultra-wide-angle light spot has extremely high uniformity throughout its entire illumination area, completely avoiding the light attenuation or dispersion problems that may occur in the edge areas of ordinary lenses.

[0037] In this embodiment: the two ends of the composite curved surface of the wide-angle optical lens 6 are provided with refractive structures for guiding light to the side, so that the angle between the emission direction of some light rays and the normal direction of the light emission surface of the lamp is greater than 60°.

[0038] It should be noted that the special refractive structures set at both ends of the composite curved surface can capture and deflect high-angle light rays that would otherwise be unusable to the side (i.e., the side facing the right-angle wall). They can even push the exit angle of some light rays to more than 60°, shooting out almost parallel to the wall surface. This greatly extends the coverage of the light, ensuring that when installed at the corner of the wall, the light can effectively "bend" and illuminate the vertical wall on the side and even the back of the lamp, thus achieving perfect coverage of both sides of the 90° right angle with one lamp.

[0039] In this embodiment: the housing 1 is made of aluminum alloy material, and heat dissipation fins are provided on its outer back side. The aluminum substrate 4-1 is tightly attached to the inner wall of the housing 1 by thermally conductive silicone grease.

[0040] It should be noted that high-power LEDs generate a lot of heat when they are working. Excessive junction temperature will lead to accelerated light decay and a sharp reduction in lifespan. In this embodiment, an aluminum alloy shell 1 is used and heat dissipation fins are provided to increase the heat dissipation surface area and utilize the high thermal conductivity of aluminum alloy to quickly dissipate heat.

[0041] The aluminum substrate 4-1 is tightly attached to the housing 1 with thermally conductive silicone grease, establishing an efficient heat conduction path from the LED chip 4-2 to the external environment, forming a complete passive heat dissipation system. This design can effectively control the junction temperature of the LED chip 4-2, ensuring that it operates stably in the optimal temperature range for a long time, thereby significantly extending the service life of the entire lamp and ensuring the stability of luminous efficacy and color.

[0042] In this embodiment: the back of the housing 1 is symmetrically provided with a horizontal slot 7 and a mounting bracket 8. The mounting bracket 8 is inserted into the slot 7 and is detachably connected to the housing 1 by screws. The bottom of the mounting bracket 8 is provided with an adjustment bracket 9. A butterfly screw 10 is provided between the adjustment bracket 9 and the mounting bracket 8. The adjustment bracket 9 is provided with a locking adjustment hole 11 with a vertical cross section of "U".

[0043] It should be noted that this installation and adjustment mechanism provides installation flexibility and convenience. The mounting bracket 8 is positioned by the slot 7 and locked by screws, ensuring a firm connection and easy assembly and disassembly. The adjustment bracket 9 is connected to the mounting bracket 8 by a wing screw 10, which can be manually rotated to loosen or tighten without tools, thereby infinitely adjusting the vertical projection angle of the lamp. The "U"-shaped locking adjustment hole 11 on the adjustment bracket 9 is compatible with common mounting bolts, allowing for fine-tuning of the installation position before final fixing. The multi-level adjustment system enables the lamp to adapt to various complex and varied installation foundations (such as uneven walls, eaves with special angles, etc.), ensuring that the light output direction can always be accurately adjusted to the designed predetermined position, reducing the difficulty and time cost of construction and debugging, and guaranteeing the final lighting effect.

[0044] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wide-angle LED wall washer light, characterized in that, include: The shell (1) is long and narrow and the end caps (2) are provided at both ends of the shell (1). A light-transmitting cover plate (3) is encapsulated at the light outlet of the shell (1). An LED light source module (4) and a driving power supply are installed inside the shell (1). A power connector (5) extending from the back plate of the shell (1) is provided on the driving power supply. The LED light source module (4) includes an aluminum substrate (4-1) and a plurality of LED chips (4-2) arrayed on the aluminum substrate (4-1). The aluminum substrate (4-1) is provided with a wide-angle optical lens (6) covering the LED chips (4-2). The light-emitting surface of the wide-angle optical lens (6) is constructed as an arc-shaped curved surface to diffuse the light emitted by the LED chips (4-2) into a wide-angle beam of 110°-130° in a first plane perpendicular to the long axis of the lamp, and to control it into a narrow-angle beam of 15°-30° in a second plane parallel to the long axis of the lamp.

2. The wide-angle LED wall washer light according to claim 1, characterized in that, The end cap (2) is detachably connected to the housing (1) by screws. The wide-angle optical lens (6) is a PC material lens that is injection molded in one piece, and its light-incident surface is provided with a cavity for accommodating the LED chip (4-2).

3. The wide-angle LED wall washer light according to claim 1, characterized in that, The free-arc curved surface of the light-emitting surface of the wide-angle optical lens (6) has a contour line in the first plane that is a composite surface composed of multiple curves with different curvatures connected smoothly.

4. The wide-angle LED wall washer light according to claim 2, characterized in that, The wide-angle optical lens (6) has refractive structures at both ends of its composite surface to guide light to the side, so that the angle between the outgoing direction of some light rays and the normal direction of the light-emitting surface of the lamp is greater than 60°.

5. The wide-angle LED wall washer light according to claim 3, characterized in that, The wide-angle optical lens (6) forms a wide-angle beam of 120° in the first plane.

6. The wide-angle LED wall washer light according to claim 1, characterized in that, The housing (1) is made of aluminum alloy and has heat dissipation fins on its outer back. The aluminum substrate (4-1) is tightly attached to the inner wall of the housing (1) by thermal grease.

7. The wide-angle LED wall washer light according to claim 1, characterized in that, The back of the housing (1) is symmetrically provided with a horizontal slot (7) and a mounting bracket (8). The mounting bracket (8) is inserted into the slot (7) and detachably connected to the housing (1) by screws. The bottom of the mounting bracket (8) is provided with an adjustment bracket (9). A butterfly screw (10) is provided between the adjustment bracket (9) and the mounting bracket (8). The adjustment bracket (9) is provided with a locking adjustment hole (11) with a vertical cross section of "U".

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