Strip-shaped flexible light-emitting module

The innovative design of flexible circuit strips and lens components solves the problem of complicated bonding between rigid PCBs and flexible FPCs, simplifies the production process, improves production strength and waterproof performance, and reduces processing difficulty.

CN223975980UActive Publication Date: 2026-03-06王昕
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Patent Information

Application Number
CN202520556252.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-03-06
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

In existing light-emitting modules, the combination of rigid PCB and flexible FPC is cumbersome in the production process, relying on the soldering process, which leads to a complex and strict production process.

Method used

The design incorporates a flexible circuit strip and a lens component. The lens component consists of a base shell and a lens housing. The lens housing has baffles on both sides. The flexible circuit strip has LED beads spaced apart and is equipped with reinforcing plates. The lens component covers the LED beads and reinforcing plates and is fixed by assembly columns and sleeve interfaces. The sealing convex ring and sealing groove form a waterproof structure.

Benefits of technology

It simplifies the production process, reduces welding steps, improves production strength and precision, enhances waterproof performance, and reduces processing difficulty and the generation of defective products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a strip-shaped flexible light-emitting module which comprises a flexible circuit strip and a lens piece, a plurality of light-emitting lamp beads are arranged on the first surface of the flexible circuit strip at intervals, and reinforcing plates are arranged at the positions, corresponding to the light-emitting lamp beads, of the second surface of the flexible circuit strip. The number of the lens pieces is matched with that of the light-emitting lamp beads. Any lens part wraps the light-emitting lamp beads and the reinforcing plate at the corresponding position. The flexible circuit belt is directly adopted to arrange the multiple lamp beads, the welding procedure between the hard board and the flexible board does not need to be considered, the process steps are simplified, the reinforcing board can provide higher strength in the production process, machining is convenient, relative displacement between the flexible circuit belt and the corresponding light-emitting lamp beads is prevented, and the production efficiency is improved. And the processing difficulty is greatly reduced, and the yield is better.
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Description

Technical Field

[0001] This utility model relates to the field of flexible light strips, and in particular to a strip-shaped flexible light-emitting module. Background Technology

[0002] Most existing low-voltage LED strips have limited illumination distances because the light emission angle is mainly determined by the emission angle of the LED beads themselves. To ensure optimal illumination, lenses are needed to constrain the light emission angle of the LED beads, thus achieving the desired illumination angle. Currently, lenses are mounted on rigid aluminum substrates, and the bending effect relies on the flexible FPC board connecting the two aluminum substrates. For example, Chinese utility model patent application number CN201821449242 discloses an LED light assembly combining rigid and flexible boards. In this solution, the combination of the rigid PCB board and the flexible FPC board is cumbersome in the production process and heavily relies on the welding process, resulting in relatively strict overall production processes and conditions. Therefore, there is an urgent need for a simpler light-emitting module to address the shortcomings and drawbacks of the existing technology. Utility Model Content

[0003] In the existing light-emitting modules, the combination of rigid PCB and flexible FPC is cumbersome in the production process and heavily reliant on the soldering process, resulting in strict overall production processes and conditions. This utility model provides a solution to this problem.

[0004] To achieve the above objectives, this utility model provides a strip-shaped flexible light-emitting module, comprising:

[0005] A flexible circuit strip, wherein a plurality of light-emitting beads are spaced apart on the first surface of the flexible circuit strip, and a reinforcing plate is provided on the second surface corresponding to the position of the light-emitting beads;

[0006] The number of the lens components is matched with the number of the light-emitting LED beads; each of the lens components covers the light-emitting LED beads and the reinforcing plate at the corresponding position.

[0007] As an improvement of this application, the lens component is composed of a base shell and a lens shell, with baffles on both sides of the lens shell, and the base shell is fixed between the two baffles.

[0008] As an improvement of this application, a strip-shaped hole is provided between any two adjacent light-emitting beads.

[0009] As an improvement of this application, the lens housing is provided with mounting posts at both ends, and the bottom housing is provided with mounting holes at both ends. The mounting posts pass through the corresponding strip holes and are adapted to be connected to the mounting holes.

[0010] As an improvement of this application, each of the reinforcing plates is provided with a sleeve interface at both ends, the sleeve interface being used to be sleeved on the corresponding assembly column.

[0011] As an improvement of this application, the flexible circuit strip is provided with a sealing protrusion at any position of the light-emitting lamp bead, and the lens housing is also provided with a sealing groove that fits into the sealing protrusion on the side close to the light-emitting lamp bead.

[0012] As an improvement of this application, the sealing groove is interference-fitted with the sealing convex ring.

[0013] As an improvement of this application, the light-emitting lamp bead is an LED lamp bead.

[0014] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model provides a strip-shaped flexible light-emitting module, including a flexible circuit strip and a lens element. A plurality of light-emitting LEDs are spaced apart on the first surface of the flexible circuit strip, and a reinforcing plate is provided on the second surface corresponding to each light-emitting LED. The number of lenses matches the number of light-emitting LEDs. Each lens element covers the corresponding light-emitting LED and the reinforcing plate. By directly using the flexible circuit strip to arrange multiple LEDs, the welding process between the rigid and flexible plates is eliminated, simplifying the process. The reinforcing plate provides stronger strength during production, facilitating processing and preventing relative displacement between the flexible circuit strip and the corresponding light-emitting LED, greatly reducing processing difficulty and improving yield. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This utility model Figure 1 A magnified view of a portion of region A;

[0017] Figure 3 This is a schematic diagram of the combination of any flexible circuit strip and lens element of this utility model;

[0018] Figure 4 This is a schematic diagram of the lens housing of this utility model.

[0019] The symbols for the main components are explained below:

[0020] 1. Flexible circuit strip; 11. LED beads; 12. Reinforcing plate; 121. Socket; 13. Strip hole; 14. Sealing ring;

[0021] 2. Lens component; 21. Base shell; 211. Assembly hole; 22. Lens housing; 221. Baffle; 222. Sealing groove; 223. Receiving groove; 224. Assembly column. Detailed Implementation

[0022] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide a further picture.

[0023] In the following description, specific examples are given to provide a more in-depth understanding of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. It should be understood that the specific embodiments described are only used to explain the present invention and are not intended to limit the present invention.

[0024] It should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the said feature, integral, step, operation, element, or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, or combinations thereof.

[0025] In the prior art, such as the Chinese utility model patent with application number CN201821449242, an LED light assembly combining rigid and flexible boards is disclosed. In this solution, the combination of rigid PCB and flexible FPC is relatively complicated in the production process and is highly dependent on the welding process, resulting in a relatively strict overall production process and conditions.

[0026] In existing light-emitting modules, the combination of rigid PCB and flexible FPC is cumbersome in the production process and heavily reliant on soldering, resulting in stringent overall production processes and conditions. This application addresses this issue by providing a strip-shaped flexible light-emitting module. Please refer to the appendix. Figure 1 To be continued Figure 4 The system includes a flexible circuit strip 1 and a lens element 2. The first surface of the flexible circuit strip 1 is spaced with multiple LED beads 11, and the second surface has reinforcing plates 12 at positions corresponding to the LED beads 11. The number of lenses 2 matches the number of LED beads 11. Each lens element 2 covers the corresponding LED bead 11 and reinforcing plate 12. By directly using the flexible circuit strip 1 to arrange multiple LED beads, the welding process between the rigid and flexible boards is eliminated, simplifying the process. The reinforcing plates 12 provide stronger strength during production, facilitating processing and preventing relative displacement between the flexible circuit strip 1 and the corresponding LED beads 11, greatly reducing processing difficulty and improving yield.

[0027] The filter element is very important in actual use. The lens element 2 makes the light generated by the light-emitting lamp beads 11 softer, increases the lighting atmosphere and avoids glare. In the solution of this application, the lens element 2 is composed of a bottom shell 21 and a lens shell 22. The lens shell 22 is provided with baffles 211 on both sides. The bottom shell 21 is fixed between the two baffles 211. The filter shell and the bottom shell 21 form a mutually covering assembly style, which allows the material of the bottom shell 21 to be made of light-transmitting material as in the lens shell 22. This makes the material selection more flexible and easier to produce.

[0028] In this embodiment, a strip hole 13 is provided between any two adjacent light-emitting beads 11. The opening of the strip hole 13 enables the flexible light-emitting module to support bending in more directions and achieve greater installation flexibility.

[0029] The base shell 21 and the lens shell 22 can be connected by magnetic attraction, fasteners, or plug-in methods. However, the cost of these methods is difficult to control, and the lens shell 22 is prone to displacement during the assembly process. Therefore, in this embodiment, the lens shell 22 is provided with mounting posts 224 at both ends, and the base shell 21 is provided with mounting holes 211 at both ends. The mounting posts 224 pass through the corresponding strip holes 13 and are adapted to the mounting holes 211. The mounting posts 224 pass through the strip holes 13 so that the lens shell 22 can be initially fixed. Then, the mounting holes 211 are adapted to the mounting posts to fix the light-emitting lamp beads 11 and the reinforcing plate 12. With the above cooperation, higher production accuracy can be obtained and the generation of defective products can be reduced.

[0030] In a further embodiment, each of the reinforcing plates 12 is provided with a sleeve interface 121 at both ends. The sleeve interface 121 is used to fit onto the corresponding assembly column 224. The sleeve interface 121 of the reinforcing plate 12 and the strip hole 13 fit together onto the cylindrical surface of the assembly column 224. Thus, during the assembly process, the positional relationship between the reinforcing plate 12, the lens housing 22, and the light-emitting lamp bead 11 can be maintained, which facilitates the alignment and assembly of the base plate.

[0031] In practical applications, the surface of the light-emitting module often requires potting to form a sealed waterproof membrane, enabling its use in underwater and outdoor environments. In a further embodiment, the flexible circuit strip 1 has a sealing protrusion at each position of the light-emitting LED bead 11, and the lens housing 22 near the light-emitting LED bead 11 also has a corresponding sealing groove 222 that engages with the sealing protrusion. The sealing protrusion and the sealing groove 222 interlock to form a waterproof structure, further enhancing waterproof performance. In low-humidity environments, the sealing protrusion and the sealing groove 222 provide a certain degree of waterproofing, protecting the light-emitting LED bead 11 from moisture. In a further embodiment, the sealing groove 222 and the sealing protrusion are interference-fitted, significantly improving sealing performance for even greater waterproofing.

[0032] In this embodiment, the light-emitting lamp bead 11 is an LED lamp bead. LED lamp beads are widely used in the prior art, and the production conditions and processes are relatively mature.

[0033] In this embodiment, the lens housing 22 is also provided with a receiving groove 223 on the side facing the flexible circuit strip 1. The receiving groove 223 is used to accommodate the electronic components of the flexible circuit strip 1.

[0034] The advantages of this utility model are:

[0035] 1. By directly using flexible circuit strips to arrange multiple LEDs, there is no need to consider the welding process between rigid and flexible boards, which simplifies the process steps. The reinforcing plate can provide stronger strength during production, making it easier to process and preventing relative displacement between the flexible circuit strip and the corresponding LEDs, greatly reducing the processing difficulty and improving output.

[0036] The above-disclosed embodiments are only a few specific examples of this utility model. However, this utility model is not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A flexible light emitting module in a strip, characterized in that The utility model relates to a flexible circuit strip, which comprises: a flexible circuit strip, a plurality of light-emitting lamp beads are arranged on a first surface of the flexible circuit strip, and a reinforcing plate is arranged on a second surface of the flexible circuit strip corresponding to the position of the light-emitting lamp beads; lens pieces, the number of the lens pieces is matched with the number of the light-emitting lamp beads, and each lens piece covers the position of the light-emitting lamp beads and the reinforcing plate.

2. The flexible strip-shaped light-emitting module according to claim 1, wherein The lens piece is composed of a bottom shell and a lens shell, both sides of the lens shell are provided with baffles, and the bottom shell is fixed between the two baffles.

3. The flexible strip-shaped light-emitting module according to claim 2, wherein A strip-shaped hole is arranged between any two adjacent light-emitting lamp beads.

4. The flexible strip-shaped light-emitting module according to claim 3, wherein Both ends of the lens shell are provided with assembly columns, both ends of the bottom shell are provided with assembly holes, and the assembly columns are connected to the corresponding strip-shaped holes and the assembly holes.

5. The flexible strip-shaped light-emitting module according to claim 4, wherein Both ends of each reinforcing plate are provided with sleeve interfaces for sleeving on the corresponding assembly columns.

6. The flexible strip-shaped light-emitting module according to claim 5, wherein The flexible circuit strip is provided with a sealing convex ring at the position of each light-emitting lamp bead, and one side of the lens shell close to the light-emitting lamp bead is also provided with a sealing groove corresponding to the sealing convex ring.

7. The flexible strip-shaped light-emitting module according to claim 6, wherein The sealing groove and the sealing convex ring are connected in an interference fit.

8. The flexible light emitting module according to any one of claims 1-7, wherein, The light-emitting lamp bead is an LED lamp bead.

Citation Information

Patent Citations

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    CN208652209U