Double-layer pulling glue MCOB lamp shadow-free LED lamp strip

The double-layer glue structure and flexible circuit board combined with current limiting devices solve the problem of lamp shadows in COB light strips at low brightness, achieving a uniform lighting effect without lamp shadows and achieving economic benefits.

CN223375661UActive Publication Date: 2025-09-23SHENZHEN DILUX LIGHTING TECH
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Patent Information

Application Number
CN202422872536.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-09-23
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

When the existing COB light strips are dimmed to low brightness, the light shadow is obvious, making it difficult to achieve a shadow-free effect.

Method used

It adopts a double-layer glue structure, including fluorescent parts and light diffusers. By adjusting the ratio of phosphor and silica gel, the color temperature and light effect are controlled. Combined with flexible circuit boards and current limiting devices, it ensures uniform light distribution.

Benefits of technology

The invention realizes the effect of no lamp shadow when dimming at low brightness, the light is evenly distributed, the appearance of lamp shadow is avoided, and the structure is simple, the cost is low, and there is good economic benefit.

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Abstract

The utility model relates to a double-layer glue-pulling MCOB lamp shadow-free LED lamp strip, which belongs to the technical field of LED lamp strips, and comprises a bearing connecting piece, an illumination assembly is arranged on the bearing connecting piece, a first glue piece is covered on the illumination assembly, and a second glue piece is covered on the first glue piece; the first colloid piece comprises a fluorescent piece and a soft colloid piece, the second colloid piece comprises a light diffusion piece and a soft colloid piece, blue light emitted by the illumination assembly can be converted into white light with the required color temperature through the first colloid piece, the white light passing through the first colloid piece is diffused through the second colloid piece, and the effect that the lamp strip is free of lamp shadows is achieved. The illumination assembly is an LED chip, the bearing connecting piece is a flexible circuit board, the LED chip is welded on the flexible circuit board, the fluorescent piece is fluorescent powder, the diffusion piece is diffusion powder, the soft rubber piece is silica gel, the change of relevant parameters can be controlled by adjusting the proportion of the fluorescent powder to the silica gel, and the change of the relevant parameters can be controlled by adjusting the proportion of the diffusion powder to the silica gel. And the lighting effect and the lamp shadow effect of the product are adjusted and controlled.
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Description

Technical Field

[0001] The utility model relates to the technical field of LED light strips, and more specifically to a double-layer glued MCOB light strip with no lamp shadow. Background Art

[0002] As the application scope of LED flexible light strips expands, the market has higher and higher requirements for the luminous effect of LED flexible light strips. COB (Chip on Board) light strips, as a type of LED flexible light strip, adopt a method of soldering multiple LED chips on the same circuit board, and then use phosphor powder with an appropriate proportion to cover and protect them to achieve a white luminous effect. Because the size of LED chips is smaller than that of SMD LED lamp beads, more chips can be arranged on the flexible PCB to achieve a more uniform luminous effect. However, it is impossible to achieve no lamp shadow, especially when the COB light strip is dimmed to low brightness, the lamp shadow is more obvious, so other methods are needed to eliminate the luminous shadow of COB light strips. Utility Model Content

[0003] The technical problem to be solved by the present invention is that, since the size of LED chips is smaller than that of SMD LED lamp beads, more chips can be arranged on the flexible PCB to achieve a more uniform lighting effect, but it is impossible to achieve no lamp shadow, especially when the COB light strip is dimmed to low brightness, the lamp shadow is more obvious. Therefore, other methods are needed to eliminate the luminous shadow of the COB light strip. In view of the above-mentioned defects of the prior art, a double-layer glued MCOB shadow-free LED light strip is provided.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] Construct a double-layer glue-drawn MCOB shadow-free LED light strip, including:

[0006] A load-bearing connecting member, wherein a lighting assembly is provided on the load-bearing connecting member, a first colloid member is covered on the lighting assembly, and a second colloid member is covered on the first colloid member;

[0007] The first colloid component includes a fluorescent component and a soft adhesive component, and the second colloid component includes a light diffusion component and a soft adhesive component.

[0008] Optionally, a current limiting device is welded on the load-bearing connecting member.

[0009] Optionally, the lighting component is an LED chip, the supporting connector is a flexible circuit board, and the LED chip is soldered on the flexible circuit board.

[0010] Optionally, the load-bearing connecting member, the lighting component and the current limiting device are combined to form a non-glue-pulled light strip main body, the first colloid part and the second colloid part are combined to form an MCOB glue-pulled colloid component, and the load-bearing connecting member, the current limiting device, the lighting component and the MCOB glue-pulled colloid component are combined to form an MCOB light strip main body.

[0011] Optionally, multiple lighting components are welded along the length direction of the load-bearing connector, the first colloid component is glued along the length direction of the load-bearing connector and covers the multiple lighting components, and the second colloid component is glued along the length direction of the load-bearing connector and covers the first colloid component.

[0012] Optionally, a power cord is provided at one end of the load-bearing connector.

[0013] Optionally, the outer side of the load-bearing connector is covered with at least one layer of waterproof component.

[0014] Optionally, a waterproof plug is provided at the head end of the load-bearing connector, and a waterproof tail plug is provided at the tail end of the load-bearing connector. The waterproof plug and the waterproof tail plug can cooperate with the waterproof component to waterproof the MCOB light strip body.

[0015] Optionally, the plug and the plug tail are connected to the waterproof component through injection molding to cooperate with each other to waterproof the MCOB light strip body.

[0016] Optionally, the waterproof component may be a waterproof outer skin or a waterproof cover.

[0017] The beneficial effects of the present invention are:

[0018] The utility model is provided with a bearing connection member, a lighting component is provided on the bearing connection member, a first colloid member is covered on the lighting component, and a second colloid member is covered on the first colloid member; the first colloid member includes a fluorescent member and a soft rubber member, and the second colloid member includes a light diffusion member and a soft rubber member. The utility model can convert the blue light emitted by the lighting component into white light of the required color temperature through the first colloid member, and diffuse the white light passing through the first colloid member through the second colloid member, so as to achieve the effect of no lamp shadow on the light strip, wherein the lighting component is an LED chip, the bearing connection member is a flexible circuit board, the LED chip is welded on the flexible circuit board, the fluorescent member is fluorescent powder, the diffusion member is diffusion powder, and the soft rubber member is silica gel. The changes in related parameters such as color temperature, color rendering index, and luminous flux can be controlled by adjusting the ratio of fluorescent powder and silica gel. The light effect and light shadow effect of the product can be adjusted and controlled by adjusting the ratio of diffusion powder and silica gel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0020] Figure 1 This is a structural schematic diagram of the flexible circuit board in the present invention when no glue is applied.

[0021] Figure 2 This is a schematic structural diagram of the flexible circuit board in the present invention when glue is drawn.

[0022] Figure 3 It is a partially cutaway schematic diagram of the present invention.

[0023] Figure 4 It is a cutaway schematic diagram of the entire utility model.

[0024] Figure 5 It is a schematic diagram of the overall structure of the utility model.

[0025] The accompanying drawings are:

[0026] 1. Flexible circuit board; 2. LED chip; 3. Current limiting device; 4. Un-glued light strip body; 5. MCOB glued colloid component; 6. MCOB light strip body; 7. First colloid component; 8. Second colloid component; 9. Waterproof component; 10. Power cord; 11. Waterproof MCOB shadowless soft light strip body; 12. Plug; 13. Plug. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0029] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0031] The present utility model is implemented as follows Figure 1-Figure 5 As shown in, it relates to a double-layer glue MCOB no-lamp shadow LED light strip, including a bearing connector, a lighting component is provided on the bearing connector, the lighting component is covered with a first colloid part 7, and the first colloid part is covered with a second colloid part 8; the first colloid part 7 includes a fluorescent part and a soft rubber part, and the second colloid part 8 includes a light diffusion part and a soft rubber part. Furthermore, the utility model can convert the blue light emitted by the lighting component into white light of the required color temperature through the first colloid part 7, and diffuse the white light passing through the first colloid part 7 through the second colloid part 8, so as to achieve the light strip without lamp shadow. Effect, specifically, in this embodiment, the lighting component is an LED chip 2, the supporting connecting part is a flexible circuit board 1, the LED chip 2 is welded on the flexible circuit board 1, the fluorescent part is fluorescent powder, the diffusion part is diffusion powder, and the soft rubber part is silica gel. The color temperature, color rendering index, luminous flux and other related parameters can be controlled by adjusting the ratio of fluorescent powder and silica gel. The light effect and light shadow effect of the product can be adjusted by adjusting the ratio of diffusion powder and silica gel. The utility model has a simple structure, convenient process, slim appearance, low cost and good economic benefits.

[0032] In this embodiment, a current limiting device 3 is welded on the load-bearing connector, which can limit the current passing through the lighting component to prevent the lighting component from being overloaded due to excessive current. When the current exceeds the set value, the current limiting device 3 will automatically adjust to ensure that the current is within a safe range, thereby avoiding damage to the lighting component due to overload.

[0033] See Figure 1-Figure 5 In this embodiment, the bearing connector, the lighting component and the current limiting device 3 are combined to form a non-glue-pulled light strip body 4, the first colloid component 7 and the second colloid component 8 are combined to form an MCOB glue-pulled colloid component 5, the bearing connector, the current limiting device 3, the lighting component and the MCOB glue-pulled colloid component 5 are combined to form an MCOB light strip body 6, further, the lighting component is welded along the length direction of the bearing connector, the first colloid component 7 is glued along the length direction of the bearing connector and covers the multiple lighting components, the second colloid component 8 is glued along the length direction of the bearing connector. The load-bearing connector is glued in the length direction and the first colloid part 7 is covered. Specifically, a plurality of lighting components are welded at even intervals along the length direction of the load-bearing connector. The specific number of lighting components can be changed according to user needs. The utility model connects the light evenly through the entire plurality of lighting components. Even when the brightness is dimmed, it has a good light mixing effect. The naked eye cannot distinguish independent light points, achieving a light-free shadow effect. The uniform distribution of lighting components can ensure that the light is evenly distributed in the length direction of the light strip, avoiding the problem of excessive light in some areas and insufficient light in other areas.

[0034] See Figure 2 In this embodiment, a power cord 10 is provided at one end of the load-bearing connector to facilitate powering of the load-bearing connector, and the power cord 10 is provided at one end of the load-bearing connector, which also facilitates subsequent maintenance and replacement work. When the power cord 10 fails or needs to be replaced, the user only needs to simply disconnect the power cord 10 from the power socket or other power cords 10 to perform replacement or repair work.

[0035] See Figure 1-Figure 5In this embodiment, the outer side of the bearing connector is covered with at least one layer of waterproof component 9. Furthermore, the head end of the bearing connector is provided with a waterproof plug 12, and the tail end of the bearing connector is provided with a waterproof tail plug 13. The waterproof plug 12 and the waterproof tail plug 13 can cooperate with the waterproof component 9 to waterproof the MCOB light strip main body 6. The waterproof component 9 coated on the outer side of the bearing connector, as well as the waterproof plugs 12 and waterproof tail plugs 13 at the head and tail, together constitute a waterproof barrier, which can effectively prevent moisture from invading the interior of the light strip from all directions, ensuring that the light strip can still work normally in a humid environment, and protecting the electronic components and circuits inside the light strip from damage. The waterproof component 9 can be a waterproof outer skin of silicone or PVC material, and co-extrusion technology can be used to form one or more layers of waterproof outer skin of silicone or PVC material on the outside of the MCOB light strip main body 6, thereby forming a waterproof MCOB light shadow-free soft light strip main body 11.

[0036] In this embodiment, the plug 12 and the plug tail 13 are connected to the waterproof component 9 by injection molding to cooperate with each other to waterproof the MCOB light strip body 6.

[0037] In this embodiment, the waterproof component 9 can be a waterproof outer skin or a waterproof cover.

[0038] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A double-layer MCOB shadowless LED light strip, characterized by: include: A bearing connection member, wherein a lighting assembly is provided on the bearing connection member, a first colloid member (7) is covered on the lighting assembly, and a second colloid member (8) is covered on the first colloid member; The first colloid part (7) includes a fluorescent part and a soft rubber part, and the second colloid part (8) includes a light diffusion part and a soft rubber part.

2. The double-layer glue-drawn MCOB shadowless LED light strip according to claim 1, characterized in that: A current limiting device (3) is welded on the load-bearing connecting piece.

3. The double-layer glue-drawn MCOB shadowless LED light strip according to claim 1, characterized in that: The lighting component is an LED chip (2), the supporting connection member is a flexible circuit board (1), and the LED chip (2) is soldered on the flexible circuit board (1).

4. The double-layer glue-drawn MCOB shadowless LED light strip according to claim 2, characterized in that: The bearing connector, the lighting assembly and the current limiting device (3) are combined to form a non-glue-pulled light strip body (4); the first colloid component (7) and the second colloid component (8) are combined to form an MCOB glue-pulled colloid component (5); and the bearing connector, the current limiting device (3), the lighting assembly and the MCOB glue-pulled colloid component (5) are combined to form an MCOB light strip body (6).

5. The double-layer glue-drawn MCOB shadowless LED light strip according to claim 1, characterized in that: A plurality of the illumination components are welded along the length direction of the bearing connection member, the first colloid member (7) is glued and arranged along the length direction of the bearing connection member and covers the plurality of illumination components, and the second colloid member (8) is glued and arranged along the length direction of the bearing connection member and covers the first colloid member (7).

6. The double-layer glue-drawn MCOB shadowless LED light strip according to claim 1, characterized in that: One end of the load-bearing connector is provided with a power line (10).

7. The double-layer glue-drawn MCOB shadowless LED light strip according to claim 4, characterized in that: The outer side of the load-bearing connector is covered with at least one layer of waterproof component (9).

8. The double-layer glue-drawn MCOB shadowless LED light strip according to claim 7, characterized in that: The head end of the load-bearing connector is provided with a waterproof plug (12), and the tail end of the load-bearing connector is provided with a waterproof tail plug (13). The waterproof plug (12) and the waterproof tail plug (13) can cooperate with the waterproof component (9) to waterproof the MCOB light strip body (6).

9. The double-layer glue-drawn MCOB shadowless LED light strip according to claim 8, characterized in that: The plug (12) and the plug tail (13) are connected to the waterproof component (9) through injection molding to cooperate with each other to waterproof the MCOB light strip body (6).

10. The double-layer glue-drawn MCOB shadowless LED light strip according to claim 7, characterized in that: The waterproof component (9) can be a waterproof outer skin or a waterproof cover.