Wall washing lamp

Abstract

The utility model discloses a wall washing lamp, relates to decorative lamp technical field, the wall washing lamp includes co-extrusion shell and luminous module, wherein the co-extrusion shell includes light-transmitting upper cover and non-light-transmitting bottom shell, light-transmitting upper cover at least part is embedded in the non-light-transmitting bottom shell, and the light-transmitting upper cover and the non-light-transmitting bottom shell together enclose an accommodation space; the light-emitting module comprises a flexible circuit board and a light-emitting source integrated on the flexible circuit board, the co-extrusion shell and the light-emitting module are integrally formed in a co-extrusion mode, the light-emitting module is wrapped in the containing space through the co-extrusion shell, and the light-emitting source faces the light-transmitting upper cover so that light emitted by the light-emitting source can be transmitted to the outside through the light-transmitting upper cover. According to the technical scheme, the problems that an existing wall washing lamp is low in assembling efficiency and poor in waterproof performance are solved.

Description

Technical Field

[0001] This utility model relates to the field of decorative lighting technology, and in particular to a wall washer light. Background Technology

[0002] With the popularization of LED lighting technology in the market, wall washer lights are loved by consumers for their unique visual effects and ease of installation in various fields such as interior decoration, outdoor landscape, and advertising signage.

[0003] Traditional wall washer lights typically require the light strip, lens, and cover to be installed sequentially on the base, which is complicated and inefficient. It is also prone to gaps that result in poor waterproof performance, making it unsuitable for outdoor use. Utility Model Content

[0004] The main purpose of this utility model is to propose a wall washer light that aims to solve the problems of low assembly efficiency and poor waterproof performance of existing wall washer lights.

[0005] To achieve the above objectives, the present invention proposes a wall washer light, which includes:

[0006] A co-extruded outer shell includes a light-transmitting top cover and a non-light-transmitting bottom shell, wherein the light-transmitting top cover is at least partially embedded inside the non-light-transmitting bottom shell to form an accommodating space together with the non-light-transmitting bottom shell; and

[0007] The light-emitting module includes a flexible circuit board and a light source integrated on the flexible circuit board. The co-extruded shell and the light-emitting module are integrally co-extruded, and the co-extruded shell covers the light-emitting module within the accommodating space. The light source is positioned towards the light-transmitting cover so that the light emitted by the light source is transmitted to the outside through the light-transmitting cover.

[0008] In one embodiment, the opaque bottom shell has an open cavity, and the translucent top cover is disposed at the opening and extends into the cavity to form the accommodating space between the inner wall of the translucent top cover and the inner wall of the opaque bottom shell.

[0009] In one embodiment, the light-transmitting cover includes a body portion and an extension portion connected together, the extension portion being disposed on the side of the body portion facing the cavity and extending into the cavity.

[0010] In one embodiment, the body portion has an arc-shaped surface, which is inclined at a target tilt angle on the side of the body portion facing the bottom of the cavity, and the arc-shaped surface protrudes in the direction close to the light source.

[0011] In one embodiment, the wall washer light further includes an anti-breakage plate, which is disposed within the accommodating space and located on the side of the flexible circuit board opposite to the light-transmitting cover.

[0012] In one embodiment, the accommodating space includes a light-emitting cavity and a mounting cavity that are connected to each other, the light source is located in the light-emitting cavity, and the flexible circuit board and the anti-breakage plate are both located in the mounting cavity.

[0013] In one embodiment, the wall washer light further includes a hydraulic plug, which is hydraulically formed at the end of the non-transparent bottom shell to seal the accommodating space.

[0014] In one embodiment, the wall washer light further includes a waterproof connector, which is sealed to the hydraulic plug and electrically connected to the flexible circuit board and an external power source.

[0015] In one embodiment, the waterproof connector includes a waterproof male connector and a waterproof female connector respectively disposed at both ends of the opaque bottom shell.

[0016] In one embodiment, the opaque bottom shell is provided with a plurality of heat dissipation grooves, which are located on the side of the opaque bottom shell opposite to the light-transmitting top cover.

[0017] This invention divides the co-extruded shell into two parts: a translucent top cover and a non-translucent bottom cover. At least a portion of the translucent top cover is embedded into the non-translucent bottom cover, forming a space within which the two parts together enclose an accommodating space. The light source is located within this space and positioned towards the translucent top cover, allowing the light emitted to pass through the cover and reach the wall, achieving a "wall-washing" effect. By integrally extruding the co-extruded shell and the light-emitting module, a seamless connection is achieved, resulting in excellent waterproofing. The material can also be cut to the required length. Compared to traditional step-by-step assembly methods, this integrated molding process simplifies the product's structure and assembly process. Furthermore, the translucency of the top cover eliminates the need for separate lens matching and installation for each light source. The installation of the light source is no longer limited by the number and size of lenses, and it also eliminates the need for positioning structures and fasteners required for lens installation. This simplifies the overall product structure and reduces assembly complexity and time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of an embodiment of the wall washer light provided by this utility model;

[0020] Figure 2 Exploded view of an embodiment of the wall washer light provided by this utility model;

[0021] Figure 3 Cross-sectional view of the internal structure of the co-extruded shell in another embodiment of the wall washer light provided by this utility model;

[0022] Figure 4 A cross-sectional view of the co-extruded shell in another embodiment of the wall washer light provided by this utility model;

[0023] Figure 5 A schematic diagram of the structure of the light-transmitting top cover in another embodiment of the wall washer light provided by this utility model;

[0024] Figure 6 IES test diagram of another embodiment of the wall washer light provided by this utility model.

[0025] Explanation of icon numbers:

[0026] 100. Wall washer light; 1. Co-extruded outer shell; 11. Translucent top cover; 111. Body; 1111. Curved surface; 112. Extension; 12. Non-translucent bottom shell; 121. Accommodation space; 1211. Light-emitting cavity; 1212. Mounting cavity; 122. Heat dissipation groove; 2. Light-emitting module; 21. Light-emitting light source; 22. Flexible circuit board; 3. Waterproof connector; 31. Waterproof male connector; 32. Waterproof female connector; 4. Anti-breakage plate; 5. Hydraulic plug.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] This utility model proposes a wall washer light.

[0032] Please see Figures 1 to 3 In one embodiment of this utility model, the wall washer light 100 includes:

[0033] The co-extruded outer shell 1 includes a light-transmitting upper cover 11 and a light-blocking lower shell 12, wherein the light-transmitting upper cover 11 is at least partially embedded inside the light-blocking lower shell 12 to form an accommodating space 121 with the light-blocking lower shell 12; and

[0034] The light-emitting module 2 includes a flexible circuit board 22 and a light-emitting source 21 integrated on the flexible circuit board 22. The co-extruded shell 1 and the light-emitting module 2 are integrally co-extruded, and the co-extruded shell 1 covers the light-emitting module 2 in the accommodating space 121. The light-emitting source 21 is positioned facing the light-transmitting cover 11 so that the light emitted by the light-emitting source 21 is transmitted to the outside through the light-transmitting cover 11.

[0035] The technical solution of this utility model divides the co-extruded shell 1 into two parts: a light-transmitting top cover 11 and a non-light-transmitting bottom shell 12. By embedding at least a portion of the light-transmitting top cover 11 into the non-light-transmitting bottom shell 12, the light-transmitting top cover 11 and the non-light-transmitting bottom shell 12 together form an accommodating space 121. The light-emitting light source 21 is located within the accommodating space 121 and is positioned towards the light-transmitting top cover 11, so that the light emitted by the light-emitting light source 21 passes through the light-transmitting top cover 11 and hits the wall, achieving a "wall-washing" effect. By integrally extruding the co-extruded shell 1 and the light-emitting module 2, a "seamless" combination of the co-extruded shell 1 and the light-emitting module 2 can be achieved, resulting in excellent waterproof performance, and the required length can be cut as needed. Furthermore, compared with the traditional step-by-step assembly method, this integral molding process simplifies the product's structural composition and assembly process. In addition, the light transmittance of the light-transmitting cover 11 means that this solution does not require individual matching and installation of lenses for each light source 21. The installation of the light source is no longer limited by the number and size specifications of the lenses. It also eliminates the need for positioning structures and fasteners required for lens installation. This not only simplifies the overall structure of the product, but also reduces the complexity and time required for assembly.

[0036] Specifically, the transparent light-transmitting top cover 11 and the opaque, non-light-transmitting bottom cover 12 are simultaneously extruded using an extruder to form a tightly integrated whole. For example, the light-transmitting top cover 11 can be made of high-transmittance silicone, utilizing its excellent light transmission to replace the traditional lens structure; the non-light-transmitting bottom cover can be made of low-transmittance and high-reflectivity (e.g., white) silicone or similar materials, serving to cover the light-emitting module 2 and other structures within the accommodating space 121, and also facilitating improved light emission efficiency of the wall washer light 100 through reflection. It is worth noting that the light source 21 can be an LED chip, with the emitting surface facing the light-transmitting top cover 11, and the LED chip is typically soldered onto a flexible circuit board 22.

[0037] It should be noted that when the light-transmitting top cover 11 and the non-light-transmitting bottom shell 12 are both made of flexible materials such as silicone through extrusion molding, the co-extruded outer shell 1 also has flexibility, which makes the entire wall washer light 100 flexible and can easily achieve the bending installation of the wall washer light 100.

[0038] In the embodiments of this utility model, please refer to Figure 2The opaque bottom shell 12 has an open cavity, and the translucent top cover 11 is located at the opening and extends into the cavity to form an accommodating space 121 between the inner wall of the translucent top cover 11 and the inner wall of the opaque bottom shell 12. The opaque bottom shell 12 can be a "box" or "pipe" shaped structure with a certain depth and internal shape. This cavity extends along the length of the wall washer light 100, and its cross-section can be rectangular, trapezoidal, or other shapes suitable for light mixing. The opening size of the cavity must match the size and shape of the translucent top cover 11. The transparent top cover is a plate with a certain thickness, and after covering the opening, its edge continues to extend a distance into the inner cavity of the bottom shell. This extended inner surface constitutes the upper inner wall of the accommodating space 121.

[0039] In the embodiments of this utility model, please refer to Figure 5 The translucent top cover 11 includes a body portion 111 and an extension portion 112 connected to each other. The extension portion 112 is located on the side of the body portion 111 facing the cavity and extends into the cavity. The body portion 111 is typically a flat or slightly curved area that matches the size of the bottom shell opening, and its outer surface is the surface from which light finally exits. The extension portion 112 can be a flat plate that extends vertically or obliquely from the edge of the body portion 111 into the cavity, extending inside the cavity. Its inner surface can be regarded as a "second reflection / refraction surface" where light undergoes preliminary mixing and diffusion within the accommodating space 121. When the light emitted by the light source 21 first illuminates the inner surface of the extension portion 112, some of the light is reflected, refracted, or scattered. This preliminary mixing can occur before the light reaches the final light-emitting surface (i.e., the outer surface of the body portion 111 of the transparent top cover), which helps to break the direct projection of a single light source and allows light emitted from different light sources to be mixed more fully within the accommodating space 121.

[0040] In the embodiments of this utility model, please refer to Figure 3 and Figure 4 The main body 111 has an arc-shaped surface 1111, which is inclined at a target angle on the side of the main body 111 facing the bottom of the cavity, and protrudes towards the light source 21. The inclination angle of the arc-shaped surface 1111 is not specifically limited and can be designed according to the polarization requirements of the light source 21. The arc-shaped surface 1111 is not a simple sphere or parabola; its specific shape can be precisely simulated and calculated using optical design software based on the required beam angle, light source type (such as the light emission angle and packaging form of the LED chip), and desired light spot uniformity. In practical implementation, an arc-shaped surface 1111 with a specific curvature can be selected according to actual needs to achieve a polarization effect at any angle. See also... Figure 6According to the illuminance curve in the IES test report of the wall washer light 100 of this application, the value of C0 / 180 is 30.1°, which indicates that its vertical beam is narrower and the light is more concentrated; while the value of C90 / 270 is 45.6°, which indicates that its horizontal beam is wider and the light is more diffused, which can form an elliptical light spot to evenly cover the wall surface, thus optimizing the uniformity and layering of the wall lighting.

[0041] In the embodiments of this utility model, please refer to Figure 2 The wall washer light 100 also includes a breakage protection plate 4, which is located within the accommodating space 121 and on the side of the flexible circuit board 22 facing away from the light-transmitting top cover 11. The breakage protection plate 4 can be a PET board with a certain strength. Before the co-extrusion molding process, the flexible circuit board 22, integrating the light source 21 and electronic components, is stacked on top of the breakage protection plate 4. Then, it is placed in the extrusion molding machine along with the co-extruded outer shell 1. After molding, the light source 21, flexible circuit board 22, and breakage protection plate 4 are all placed within the accommodating space 121, ensuring that the flexible circuit board 22 faces the light-transmitting top cover 11 and the breakage protection plate 4 faces the bottom of the bottom shell. The introduction of the breakage protection plate 4 reduces the probability of the flexible circuit board 22 breaking during the co-extrusion molding process.

[0042] In the embodiments of this utility model, please refer to Figure 4 The accommodating space 121 includes a communicating light-emitting cavity 1211 and a mounting cavity 1212. The light source 21 is located inside the light-emitting cavity 1211, and the flexible circuit board 22 and the anti-breakage plate 4 are both located inside the mounting cavity 1212. The mounting cavity 1212 can better enclose the flexible circuit board 22 and the anti-breakage plate 4, which helps to improve the waterproofness of the product.

[0043] In the embodiments of this utility model, please refer to Figure 1 and Figure 2 The wall washer light 100 also includes a hydraulic plug 5, which is hydraulically formed at the end of the non-transparent base shell 12 to seal the accommodating space 121. The hydraulic plug 5 can be made of materials such as silicone or plastic, and is made to fit tightly to the inner wall shape of the end of the non-transparent base shell 12 through hydraulic forming. In addition, the hydraulic plug 5 usually has an opening for the cable of the waterproof connector 3 to pass through and be installed.

[0044] In the embodiments of this utility model, please refer to Figure 2The wall washer light 100 also includes a waterproof connector 3, which is sealed to the hydraulic plug 5 and electrically connected to the flexible circuit board 22 and an external power source. The waterproof connector 3 is located at both ends of the opaque base 12, which is typically slightly recessed or has a specific interface shape to facilitate the installation of standard waterproof connectors 3. For example, an IP67 / IP68 rated M10 connector can be used. One end of the waterproof connector 3 connects to the flexible circuit board 22 of the light-emitting module 2, and the other end is connected to an external power source (such as a transformer or direct connection to mains power) via a cable.

[0045] In the embodiments of this utility model, please refer to Figure 2 The waterproof connector 3 includes a waterproof male connector 31 and a waterproof female connector 32 located at both ends of the non-transparent base shell 12. This makes the wall washer light 100 a complete electrical unit. Users can flexibly choose which connector to use for connection according to actual wiring needs, or connect multiple wall washer lights 100 end to end through the male and female connectors to form a longer lighting strip. When maintenance or replacement of the light fixture is required, the power connection can be quickly disconnected by unlocking the snap-fit ​​structure of the waterproof male connector 31 or the waterproof female connector 32, without disassembling the entire light fixture or performing complex cable operations.

[0046] In the embodiments of this utility model, please refer to Figure 3 and Figure 4 The opaque base 12 has multiple heat dissipation grooves 122 located on the side of the opaque base 12 opposite to the light-transmitting top cover 11. The heat dissipation grooves 122 can be continuous wavy grooves or an array of microgrooves extending from the surface of the base. The numerous dense microgrooves effectively increase the surface area of ​​the opaque base 12, promoting air convection and heat dissipation. When the wall washer light 100 is installed on the wall, air can naturally convect or flow over the surface of the grooves with the help of ambient airflow, carrying away heat and significantly improving heat dissipation efficiency.

[0047] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A wall washer light, characterized in that, The wall washer light includes: A co-extruded outer shell includes a light-transmitting top cover and a non-light-transmitting bottom shell, wherein the light-transmitting top cover is at least partially embedded inside the non-light-transmitting bottom shell to form an accommodating space together with the non-light-transmitting bottom shell; and The light-emitting module includes a flexible circuit board and a light source integrated on the flexible circuit board. The co-extruded shell and the light-emitting module are integrally co-extruded, and the co-extruded shell covers the light-emitting module within the accommodating space. The light source is positioned towards the light-transmitting cover so that the light emitted by the light source is transmitted to the outside through the light-transmitting cover.

2. The wall washer light as described in claim 1, characterized in that, The non-opaque bottom shell has an open cavity, and the light-transmitting top cover is located at the opening and extends into the cavity to form the accommodating space between the inner wall of the light-transmitting top cover and the inner wall of the non-opaque bottom shell.

3. The wall washer light as described in claim 2, characterized in that, The light-transparent cover includes a body portion and an extension portion connected to each other. The extension portion is located on the side of the body portion facing the cavity and extends into the cavity.

4. The wall washer light as described in claim 3, characterized in that, The main body is provided with an arc-shaped surface, which is inclined at a target tilt angle on the side of the main body facing the bottom of the cavity, and the arc-shaped surface protrudes in the direction close to the light source.

5. The wall washer light as described in claim 1, characterized in that, The wall washer light also includes a breakage protection plate, which is disposed within the accommodating space and located on the side of the flexible circuit board opposite to the light-transmitting cover.

6. The wall washer light as described in claim 5, characterized in that, The accommodating space includes a connected light-emitting cavity and a mounting cavity, with the light source located in the light-emitting cavity and the flexible circuit board and the anti-breakage plate both located in the mounting cavity.

7. The wall washer light as described in claim 1, characterized in that, The wall washer light also includes a hydraulic plug, which is hydraulically formed at the end of the non-transparent bottom shell to seal the accommodating space.

8. The wall washer light as described in claim 7, characterized in that, The wall washer light also includes a waterproof connector, which is sealed to the hydraulic plug and electrically connected to the flexible circuit board and an external power source.

9. The wall washer light as described in claim 8, characterized in that, The waterproof connector includes a waterproof male connector and a waterproof female connector respectively located at both ends of the non-transparent bottom shell.

10. The wall washer light as described in any one of claims 1 to 9, characterized in that, The non-transparent bottom shell is provided with a plurality of heat dissipation grooves, which are located on the side of the non-transparent bottom shell away from the light-transmitting top cover.

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