A multi-directional flexible wall washer light

Abstract

The utility model belongs to the technical field of wall washer lamps, especially a multi-directional flexible wall washer lamp. The utility model discloses a combination of a flexible circuit board as a continuous electrical baseband and a rigid circuit board as a rigid node, and a flexible connecting part is formed by the flexible circuit board section between adjacent rigid circuit boards, so that the flexible wall washer lamp has multi-directional bending and twisting physical deformation ability, thereby perfectly fitting curved surfaces such as cylinders and wave walls, and the cooperation of the conductive connecting piece and the plug-in hole and the curing of the potting adhesive ensure the stability of the electrical connection and the firmness of the mechanical fixation. The recess on the flexible circuit board guides the deformation to concentrate on the flexible connecting part, thereby protecting the elements on the rigid circuit board. The groove at the bottom enhances the bonding force with the potting adhesive, prevents peeling, and the overall potting process realizes waterproof sealing and stress dispersion, thereby finally breaking through the limitation of traditional wall washer lamps that are only suitable for flat surface installation.

Description

Technical Field

[0001] This utility model relates to the field of wall washer light technology, specifically a flexible wall washer light that bends in multiple directions. Background Technology

[0002] Wall washer lights, as an important type of architectural and landscape lighting fixture, have long been limited by rigid structures in their technological development. Traditional wall washer lights typically use inflexible aluminum profile shells and rigid circuit boards, resulting in a fixed shape that can only be installed on flat or regular facades. With the widespread use of irregular curved surfaces (such as wave walls, domes, and spiral structures) in modern architectural design, these types of lights cannot conform to complex curved surfaces, leading to installation difficulties, broken light strips, and fragmented visual effects, severely restricting the realization of design creativity and lighting effects.

[0003] Therefore, we propose a flexible wall washer light with multi-directional bending to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a flexible wall washer light with multi-directional bending, which solves the problem mentioned in the background art that traditional wall washer lights cannot be bent due to their rigid structure, making it difficult to adapt to and fit the complex curved surfaces of modern buildings.

[0005] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A flexible wall washer light with multi-directional bending, comprising: Flexible lamp housing; The flexible lamp assembly disposed inside the flexible lamp housing, and the encapsulation body encapsulated within the flexible lamp housing; The flexible lighting assembly includes a flexible circuit board extending along its length and a plurality of rigid circuit boards fixed at intervals on the flexible circuit board. The flexible circuit board segments between adjacent rigid circuit boards constitute a flexible connection portion for overall bending deformation.

[0006] Furthermore, the inner walls of the flexible lamp housing are provided with partitions along their length on both sides, and the partitions divide the interior of the flexible lamp housing into an upper cavity and a lower cavity.

[0007] Furthermore, the rigid circuit board is supported on the partition and located in the upper cavity, while the flexible circuit board is disposed in the lower cavity; the rigid circuit board and the flexible circuit board are arranged perpendicular to each other.

[0008] Furthermore, the top of the flexible circuit board is provided with several sets of conductive connecting pieces, and each set of conductive connecting pieces includes at least two independent connecting pieces; The rigid circuit board has corresponding insertion holes at both ends that are adapted to the conductive connecting pieces. The conductive connecting pieces are inserted into the insertion holes to achieve electrical connection and mechanical fixation between the rigid circuit board and the flexible circuit board.

[0009] Furthermore, the top of the flexible circuit board has a groove between two adjacent sets of conductive connecting pieces, and the flexible connecting part is a flexible circuit board section with the groove.

[0010] Furthermore, the rigid circuit board integrates an LED light source and a lens covering the LED light source.

[0011] Furthermore, the flexible lamp housing is provided with a plug and a tail at both ends, and each plug and tail is provided with a plug that extends into the lower cavity.

[0012] Furthermore, a power cord is threaded through the plug or end cap, and the power cord extends into the lower cavity and is electrically connected to the flexible circuit board.

[0013] Furthermore, the encapsulation body is a potting compound encapsulated within a flexible lamp housing.

[0014] Furthermore, the bottom of the flexible circuit board is provided with several slots.

[0015] (III) Beneficial Effects Compared with the prior art, this utility model provides a flexible wall washer light with multi-directional bending, which has the following beneficial effects: This invention combines a flexible circuit board as a continuous electrical base with a rigid circuit board as a rigid node, and uses flexible circuit board segments between adjacent rigid circuit boards to form a flexible connection. This allows the flexible wall washer light to achieve multi-directional bending and twisting physical deformation capabilities, thus perfectly fitting curved surfaces such as cylinders and wavy walls. The fit between the conductive connecting piece and the insertion hole, as well as the curing of the potting compound, ensures stable electrical connections and firm mechanical fixation. The grooves on the flexible circuit board guide deformation to concentrate in the flexible connection, protecting the components on the rigid circuit board. The groove at the bottom enhances the bonding force with the potting compound, preventing peeling. The overall potting process achieves waterproof sealing and stress dispersion, ultimately breaking through the limitation of traditional wall washer lights being limited to installation on flat surfaces. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the flexible lamp body shell structure of this utility model; Figure 2 This is an exploded view of the flexible lamp body shell structure of this utility model; Figure 3 This is a schematic diagram of the lens structure of this utility model; Figure 4This is a schematic diagram of the flexible lighting component structure of this utility model; Figure 5 This is a schematic diagram of the rigid circuit board structure of this utility model; Figure 6 This is a schematic diagram of the flexible lighting component structure of this utility model; Figure 7 This is a schematic diagram of the flexible circuit board structure of this utility model; Figure 8 This is a schematic diagram of the flexible lamp body shell and its internal structure in a bent state according to the present invention; Figure 9 This is a schematic diagram of the flexible lamp body shell and its internal structure in a bent state.

[0017] In the diagram: 1. Flexible lamp housing; 11. Partition; 12. Upper cavity; 13. Lower cavity; 14. Plug; 15. Plug; 16. Plug; 17. Power cord; 2. Flexible lamp assembly; 21. Flexible circuit board; 22. Rigid circuit board; 23. Flexible connection part; 24. Conductive connecting piece; 25. Insertion hole; 26. Groove; 27. LED light source; 28. Lens; 29. ​​Slot; 3. Encapsulation body. Detailed Implementation

[0018] 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 protection scope of the present utility model.

[0019] Example like Figure 1-9 As shown, one embodiment of this utility model discloses a multi-directional bending flexible wall washer light, comprising: Flexible lamp housing 1; The flexible lamp assembly 2 is disposed inside the flexible lamp housing 1, and the encapsulation body 3 is encapsulated inside the flexible lamp housing 1; The flexible lighting assembly 2 includes a flexible circuit board 21 extending along the length of the flexible lamp body shell 1, and a plurality of rigid circuit boards 22 fixed at intervals on the flexible circuit board 21. The flexible circuit board 21 segments between adjacent rigid circuit boards 22 constitute a flexible connection portion 23 for overall bending deformation.

[0020] The flexible circuit board 21 serves as a continuous electrical and mechanical baseband, while the rigid circuit board 22 serves as a discrete, rigid node that carries the light source. After the two are fixedly connected, the area between the rigid circuit boards 22 is connected by the flexible circuit board 21 segment (i.e., the flexible connection part 23), thereby giving the entire flexible lighting assembly 2 structure the ability to physically deform while maintaining electrical connectivity.

[0021] It fundamentally changes the physical properties of wall washer lights. Through the "rigid and flexible" circuit component design, flexible wall washer lights can not only bend along the length direction, but also achieve multi-dimensional twisting and bending. This breaks through the limitation that traditional wall washer lights can only be applied to flat or regular surfaces, and provides a foundation for achieving continuous and seamless lighting effects on complex irregular structures such as cylinders, wave-shaped facades, and domes.

[0022] The flexible lamp housing 1 is made of a polymer material with high flexibility and elasticity, and the material is selected from one of silicone rubber, thermoplastic polyurethane elastomer, or soft polyvinyl chloride.

[0023] like Figure 1-9 As shown, in some embodiments, partitions 11 are provided on both sides of the inner wall of the flexible lamp housing 1 along its length direction, and the partitions 11 divide the interior of the flexible lamp housing 1 into an upper cavity 12 and a lower cavity 13.

[0024] A partition 11 is provided inside the flexible lamp body shell 1 to divide its inner cavity into two parts, forming an upper cavity 12 and a lower cavity 13 that are parallel and relatively independent. The partition 11 is the physical basis for the partitioned arrangement of internal functional components.

[0025] The upper cavity 12 is specifically designed to house and fix the optical module (rigid circuit board 22 and LED light source 27) to ensure the stability and consistency of the light output direction; the lower cavity 13 is used to house the flexible circuit board 21, which is mainly responsible for electrical connection and deformation, and its connecting components. This partitioned design allows the optical, electrical, and mechanical structures to operate independently without interfering with each other, thereby improving the utilization efficiency of the internal space and the reliability of the system.

[0026] like Figure 1-9 As shown, in some embodiments, the rigid circuit board 22 is supported on the partition 11 and located in the upper cavity 12, and the flexible circuit board 21 is disposed in the lower cavity 13; the rigid circuit board 22 and the flexible circuit board 21 are arranged perpendicular to each other.

[0027] The rigid circuit board 22 is supported and fixed to the upper cavity 12, while the flexible circuit board 21 is laid on the lower cavity 13. The two are perpendicular to each other in space. The rigid circuit board 22 provides a stable mounting surface and can expand the upper cavity 12, ensuring that the overall thickness and width of the flexible lamp housing 1 remain stable when it is bent, while the flexible circuit board 21 extends in a plane perpendicular to it.

[0028] This vertical layout is key to optimizing space and function. The rigid circuit board 22 is placed horizontally (or at the designed angle), providing an optimal mounting and light-emitting platform for the LED light source 27 and lens 28. The flexible circuit board 21 is placed vertically, which makes full use of its deformation capability in the thickness direction (usually thinner and easier to bend), achieving multi-directional bending of the flexible wall washer light with minimal space occupation, and the support relationship also clarifies the force transmission path.

[0029] like Figure 1-9 As shown, in some embodiments, the top of the flexible circuit board 21 is provided with a plurality of sets of conductive connecting pieces 24, each set of conductive connecting pieces 24 including at least two independent connecting pieces. The rigid circuit board 22 has corresponding insertion holes 25 at both ends that are adapted to the conductive connecting piece 24. The conductive connecting piece 24 is inserted into the insertion hole 25 to realize the electrical connection and mechanical fixation between the rigid circuit board 22 and the flexible circuit board 21.

[0030] A raised conductive connecting piece 24 is provided on the top of the flexible circuit board 21, and corresponding insertion holes 25 are provided at both ends of the rigid circuit board 22. By precisely inserting the connecting piece into the hole, electrical conduction and mechanical locking are simultaneously achieved. This insertion structure is the core of connecting the rigid and flexible parts. First, it achieves a reliable electrical connection, with signals and power being stably transmitted through the metal connecting piece. Second, it provides strong mechanical fixation, firmly "locking" the rigid circuit board 22 onto the flexible circuit board 21, preventing it from loosening during bending, vibration, or installation. Third, this structure facilitates production assembly, enabling rapid and accurate positioning and installation of the rigid circuit board 22, improving production efficiency.

[0031] The outer dimensions of the conductive connecting piece 24 are slightly larger than the inner diameter of the insertion hole 25. The two are initially tightly fitted and secured through an interference fit. In the subsequent potting process, the potting compound penetrates into the connection and cures, further bonding the rigid circuit board 22, the conductive connecting piece 24 and the flexible circuit board 21 into a whole, thereby achieving a stable mechanical fixation.

[0032] like Figure 1-9 As shown, in some embodiments, the top of the flexible circuit board 21 has a groove 26 between two adjacent sets of conductive connecting pieces 24, and the flexible connecting portion 23 is the section of the flexible circuit board 21 with the groove 26.

[0033] On the flexible circuit board 21, a specific groove 26 is machined in the area between two sets of conductive connecting pieces 24 used to fix the rigid circuit board 22. This area with the groove 26 constitutes the physical "flexible connection 23". The groove 26 design is key to controlling bending behavior; it locally reduces the material thickness and width of the flexible circuit board 21, thereby forming a predetermined, low-strength "hinge" in this area. When the flexible wall washer light bends, the deformation will preferentially and concentratedly occur in this groove 26 area, making the bending action smoother and more controllable, and effectively preventing stress from being transferred to the rigid circuit board 22 or its solder joints, protecting the LED light source 27 and electronic components from damage.

[0034] See Figure 8-9 , Figure 8 This diagram shows the product after assembly, with both ends bent downwards into a U-shape from the bottom surface of the flexible lamp housing 1. Figure 9 The diagram shows the state after the product is assembled, with both ends of the flexible lamp housing 1 bent into a U-shape from one side.

[0035] like Figure 1-9 As shown, in some embodiments, the rigid circuit board 22 integrates an LED light source 27 and a lens 28 covering the LED light source 27.

[0036] The LED light source 27 (such as an LED chip) is directly mounted and soldered onto the rigid circuit board 22 to form an integrated light source module. The lens 28 covers and is fixed on top of the module. The rigid circuit board 22 provides a flat and solid substrate for the LED, which is beneficial for heat dissipation and soldering reliability. The independent lens 28 is used to redistribute, mix, or anti-glare the light emitted by the LED, thereby realizing an independent, complete, and high-quality optical output unit on the "rigid node" of the rigid circuit board 22.

[0037] like Figure 1-9 As shown, in some embodiments, the flexible lamp housing 1 is provided with a plug 14 and a plug 15 at both ends, and each of the plug 14 and the plug 15 is provided with a plug 16 extending into the lower cavity 13.

[0038] The plug 14 and the plug 15 serve as end caps, with the plug 16 portion designed to be inserted into the lower cavity 13 at the end of the flexible lamp housing 1. The plug 16 structure has multiple functions: firstly, it serves as an alignment tool to ensure accurate installation of the end cap; secondly, it partially seals the end of the flexible lamp housing 1, forming a tight fit with the inner wall of the flexible lamp housing 1, providing a preliminary sealing boundary for subsequent potting processes and preventing excessive leakage of liquid potting compound; finally, it increases the connection strength and integrity between the end cap and the flexible lamp housing 1.

[0039] like Figure 1-9As shown, in some embodiments, a power cord 17 is threaded through the plug 14 or plug 15, and the power cord 17 extends into the lower cavity 13 and is electrically connected to the flexible circuit board 21.

[0040] The power cord 17 passes through the sealing hole on the plug 14 or the plug 15, extends directly into the lower cavity 13, and is electrically connected to the input end of the flexible circuit board 21 located in the lower cavity 13. By placing the external power access point at the end and directly connecting it to the flexible circuit board 21, the electrical connection path is minimized and made the most direct. This design avoids the need for additional junction boxes or connectors in the bending section, which not only simplifies the external structure and makes it aesthetically pleasing, but more importantly, eliminates the risk of internal wire breakage due to repeated bending, thereby improving the durability and safety of the entire power access system.

[0041] like Figure 1-9 As shown, in some embodiments, the encapsulation body 3 is a potting compound encapsulated within the flexible lamp housing 1.

[0042] After the assembled internal components and the end caps 14 and end caps 15 are installed, liquid potting compound is poured into the cavity of the flexible lamp housing 1 until all gaps are filled, and then cured to form a solid encapsulation 3.

[0043] Encapsulation is key to ensuring the long-term reliable operation of flexible wall washer lights. First, it provides the highest level of sealing, making it waterproof, dustproof, and corrosion-resistant. Second, it bonds and cures all internal components (flexible circuit board 21, rigid circuit board 22, connections, and wires) into a whole, greatly enhancing structural strength, dispersing stress, and preventing relative displacement or wear of components when bent. In addition, encapsulation has good thermal conductivity and electrical insulation, which helps dissipate heat and ensures electrical safety.

[0044] like Figure 1-9 As shown, in some embodiments, the bottom of the flexible circuit board 21 is provided with a plurality of slots 29.

[0045] Several grooves 29 of a specific shape are processed on the bottom of the flexible circuit board 21. These bottom grooves 29 mainly enhance the mechanical bonding force between the flexible circuit board 21 and the potting compound. When the liquid potting compound flows into and solidifies in these grooves 29, it forms a strong "anchoring" effect, which greatly increases the bonding area and shear resistance between the two. This can effectively prevent the flexible circuit board 21 and the potting compound from peeling or slipping when the flexible wall washer light is repeatedly bent and deformed. It ensures that the deformation of the flexible circuit board 21 can be transmitted synchronously and accurately to the entire flexible lamp housing 1, maintaining the consistency and stability of the deformation.

[0046] In summary, by combining the flexible circuit board 21 as a continuous electrical base with the rigid circuit board 22 as a rigid node, and by forming a flexible connection part 23 with the flexible circuit board 21 segments between adjacent rigid circuit boards 22, the flexible wall washer light gains the ability to undergo multi-directional bending and twisting physical deformation, thus perfectly fitting curved surfaces such as cylinders and wavy walls. The fit between the conductive connecting piece 24 and the insertion hole 25, as well as the curing of the potting compound, ensures the stability of the electrical connection and the firmness of the mechanical fixation. The groove 26 on the flexible circuit board 21 guides the deformation to concentrate in the flexible connection part 23, protecting the components on the rigid circuit board 22; the slot 29 at its bottom enhances the bonding force with the potting compound and prevents peeling. The overall potting process achieves waterproof sealing and stress dispersion, ultimately breaking through the limitation of traditional wall washer lights being limited to installation on flat surfaces.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flexible wall washer light with multi-directional bending, characterized in that, include: Flexible lamp housing (1); The flexible lamp assembly (2) disposed inside the flexible lamp housing (1), and the encapsulation body (3) encapsulated inside the flexible lamp housing (1); The flexible lighting assembly (2) includes a flexible circuit board (21) extending along the length direction and a plurality of rigid circuit boards (22) fixed at intervals on the flexible circuit board (21). The flexible circuit board (21) segments between adjacent rigid circuit boards (22) constitute a flexible connection part (23) for overall bending deformation.

2. The multi-directional bending flexible wall washer light according to claim 1, characterized in that: The flexible lamp housing (1) has partitions (11) arranged on both sides of its inner wall along its length direction. The partitions (11) divide the interior of the flexible lamp housing (1) into an upper cavity (12) and a lower cavity (13).

3. A flexible wall washer light with multi-directional bending according to claim 1, characterized in that: The rigid circuit board (22) is supported on the partition (11) and located in the upper cavity (12), and the flexible circuit board (21) is disposed in the lower cavity (13); the rigid circuit board (22) and the flexible circuit board (21) are arranged perpendicular to each other.

4. A flexible wall washer light with multi-directional bending according to claim 1, characterized in that: The top of the flexible circuit board (21) is provided with several sets of conductive connecting pieces (24), and each set of conductive connecting pieces (24) includes at least two independent connecting pieces. The rigid circuit board (22) has corresponding insertion holes (25) at both ends that are adapted to the conductive connecting piece (24). The conductive connecting piece (24) is inserted into the insertion hole (25) to realize the electrical connection and mechanical fixation between the rigid circuit board (22) and the flexible circuit board (21).

5. A flexible wall washer light with multi-directional bending according to claim 1, characterized in that: The top of the flexible circuit board (21) has a groove (26) between two adjacent sets of conductive connecting pieces (24), and the flexible connecting part (23) is the section of the flexible circuit board (21) with the groove (26).

6. A flexible wall washer light with multi-directional bending according to claim 1, characterized in that: The rigid circuit board (22) integrates an LED light source (27) and a lens (28) covering the LED light source (27).

7. A flexible wall washer light with multi-directional bending according to claim 1, characterized in that: The flexible lamp body shell (1) is provided with a plug (14) and a plug (15) at both ends, and a plug (16) extending into the lower cavity (13) is provided on both the plug (14) and the plug (15).

8. A flexible wall washer light with multi-directional bending according to claim 7, characterized in that: A power cord (17) is threaded through the plug (14) or plug (15), the power cord (17) extends into the lower cavity (13) and is electrically connected to the flexible circuit board (21).

9. A flexible wall washer light with multi-directional bending according to claim 1, characterized in that: The encapsulation body (3) is a potting compound that is filled into the flexible lamp body shell (1).

10. A flexible wall washer light with multi-directional bending according to claim 1, characterized in that: The bottom of the flexible circuit board (21) is provided with several slots (29).

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