Separated LED reflecting film assembly

Abstract

The utility model relates to the technical field of semiconductor lighting, and discloses a separating type LED reflecting film assembly which comprises a protective outer shell, fixed inner shells are fixedly installed on the two sides of the interior of the protective outer shell, LED light source structures are arranged on the side faces of the fixed inner shells, light source reflecting structures are arranged on the upper half portions of the interiors of the fixed inner shells, and the light source reflecting structures are arranged on the lower half portions of the interiors of the fixed inner shells. A light source diffusion structure is arranged on the lower half portion in the fixed inner shell, and a heat dissipation structure is arranged on the side face of the fixed inner shell. Through reasonable matching of the protective outer shell and the fixed inner shell, a stable supporting environment is provided for internal components, and internal structure displacement caused by external vibration is reduced; in the light source reflection structure and the light source diffusion structure, direct friction among a reflection diaphragm, a light guide plate, a total reflection brightness enhancement film, a diffusion diaphragm and the like is effectively avoided through interval separation blocks among the components.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor lighting technology, specifically to a split LED reflective film assembly. Background Technology

[0002] In the modern field of electronic display and lighting, high-efficiency optical components are crucial for improving product performance. As an energy-saving and high-brightness light source, LEDs are widely used in various display devices such as backlights for LCD monitors and lighting fixtures. In these applications, LED reflective film components play a key role. Their function is to efficiently reflect and guide the light emitted by LEDs, improve light utilization, thereby enhancing the brightness of the display and the illumination intensity of the illuminated area, ensuring that related products can provide clear and bright visual effects and meet users' needs for a high-quality visual experience.

[0003] Traditional LED reflective film assemblies have revealed many drawbacks in practical use. In common split structures, the reflective film is often thin and requires an additional backplate for support. However, it is difficult to achieve perfect flatness on the backplate. Even slight undulations or unevenness can affect the light reflection path, leading to uneven light distribution and thus reducing the quality of the displayed image. This can result in uneven brightness patches on the display device, affecting the visual effect. In addition, in environments involving mechanical vibration, such as automotive displays or portable lighting tools, the traditional split reflective film and light guide plate structure are prone to mutual friction. Long-term friction can not only cause wear on the surface of the reflective film or light guide plate, damaging its optical performance, but also generate debris and other impurities, further interfering with light propagation and seriously affecting image quality. To address these issues, we propose a split LED reflective film assembly. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a detachable LED reflective film assembly, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a detachable LED reflective film assembly, wherein a fixed inner shell is fixedly installed on both sides of the inner protective shell, an LED light source structure is provided on the side of the fixed inner shell, a light source reflection structure is provided in the upper half of the fixed inner shell, the light source includes a reflective film groove, a light guide plate groove, a reflective film and a light guide plate, the upper half of the fixed inner shell has a reflective film groove and a light guide plate groove, a reflective film is fixedly installed in the reflective film groove, a light guide plate is fixedly installed in the light guide plate groove, a light source diffusion structure is provided in the lower half of the fixed inner shell, the light source diffusion structure includes a total reflection enhancement film groove, a diffusion film groove, a total reflection enhancement film and a diffusion film, the lower half of the fixed inner shell has a total reflection enhancement film groove and a diffusion film groove, a total reflection enhancement film is fixedly installed in the total reflection enhancement film groove, a diffusion film is fixedly installed in the diffusion film groove, and a heat dissipation structure is provided on the side of the fixed inner shell.

[0008] Preferably, the protective shell is hollow inside, and a through square groove is formed on the top of the protective shell and a through square groove is formed on one side of the protective shell.

[0009] Preferably, the heat dissipation structure includes heat dissipation grooves and protective rods. The side of the fixed inner shell is provided with heat dissipation grooves, and multiple sets of equidistantly arranged protective rods are provided on the side of the fixed inner shell between the heat dissipation grooves. The other end face of the protective rods is fixedly connected to the inner side of the protective outer shell.

[0010] Preferably, the LED light source structure includes a mounting groove, an LED light source housing, and an LED light source. The mounting grooves are provided on both sides of the fixed inner housing. The LED light source housing is fixedly installed in the mounting grooves. The LED light source is fixedly installed on the outside of the LED light source housing. The bottom of the LED light source is fixedly connected to the fixed inner housing.

[0011] Preferably, the light guide plate groove is located below the reflective film groove, and a spacer block is provided between the reflective film and the light guide plate.

[0012] Preferably, the diffusion film groove is located below the total reflection enhancement film groove, and a spacer block is provided between the total reflection enhancement film and the diffusion film.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a split LED reflective film assembly, which has the following advantages:

[0015] 1. This split LED reflective film assembly has a dedicated light source reflection structure in the upper part of the fixed inner shell, including a reflective film groove and a light guide plate groove. The reflective film and the light guide plate are precisely installed in it, and a spacer block is set between them. This design allows the reflective film and the light guide plate to cooperate stably and accurately, ensuring a more regular light reflection path.

[0016] 2. This split LED reflective film assembly provides a stable support environment for the internal components through the reasonable combination of the protective outer shell and the fixed inner shell, reducing the displacement of the internal structure caused by external vibration. On the other hand, in the light source reflection structure and the light source diffusion structure, the spacing and separation blocks between each component effectively avoid direct friction between the reflective film, light guide plate, total reflection light enhancement film and diffusion film.

[0017] 3. This split LED reflective film assembly is equipped with a heat dissipation structure. Heat dissipation grooves are opened on the side of the fixed inner shell, and multiple sets of protective rods are arranged at equal intervals between the heat dissipation grooves. The other end of the protective rods is fixedly connected to the inner side of the protective shell. The heat dissipation grooves increase the heat dissipation area, which can quickly dissipate the heat generated by the LED light source. The protective rods not only serve to support and fix the inner shell, but also enhance air circulation and further improve the heat dissipation effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the LED light source housing of this utility model;

[0020] Figure 3 This is a schematic diagram of the heat dissipation groove of this utility model;

[0021] Figure 4 This is a schematic diagram of the spacer separation block of this utility model;

[0022] Figure 5 This is a schematic diagram of the mounting groove of this utility model;

[0023] Figure 6 This is a schematic diagram of the protective rod of this utility model.

[0024] In the diagram: 1. Protective outer shell; 2. Fixed inner shell; 3. Mounting slot; 4. Heat dissipation slot; 5. Protective rod; 6. Reflective film slot; 7. Light guide plate slot; 8. Total reflection brightness enhancement film slot; 9. Diffuser film slot; 10. LED light source shell; 11. LED light source; 12. Reflective film; 13. Light guide plate; 14. Total reflection brightness enhancement film; 15. Diffuser film; 16. Spacer block. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-6 A detachable LED reflective film assembly includes a fixed inner shell 2 fixedly installed on both sides of the inner protective shell 1. An LED light source structure is provided on the side of the fixed inner shell 2. A light source reflection structure is provided in the upper half of the fixed inner shell 2. The light source includes a reflective film groove 6, a light guide plate groove 7, a reflective film 12, and a light guide plate 13. The upper half of the fixed inner shell 2 has a reflective film groove 6 and a light guide plate groove 7. The reflective film 12 is fixedly installed in the reflective film groove 6, and the light guide plate groove 7... A light guide plate 13 is fixedly installed. The lower half of the fixed inner shell 2 is provided with a light source diffusion structure. The light source diffusion structure includes a total reflection enhancement plate groove 8, a diffusion film groove 9, a total reflection enhancement plate 14, and a diffusion film 15. The lower half of the fixed inner shell 2 has a total reflection enhancement plate groove 8 and a diffusion film groove 9. The total reflection enhancement plate 14 is fixedly installed in the total reflection enhancement plate groove 8, and the diffusion film 15 is fixedly installed in the diffusion film groove 9. A heat dissipation structure is provided on the side of the fixed inner shell 2.

[0027] Furthermore, the protective housing 1 is hollow inside, with a through square slot on the top and one side. The hollow interior of the protective housing 1 provides installation space for fixing the inner housing 2 and other internal components. The through square slots on the top and side play an important role. On the one hand, these slots may be used to install other auxiliary equipment, such as sensors or to connect external lines, enabling the components to work with more devices. For example, in some smart lighting scenarios, an ambient light sensor can be installed through the slot to automatically adjust the brightness of the LED light source 11 according to the ambient light intensity, achieving the dual goals of energy saving and comfortable lighting. On the other hand, the slots also facilitate air circulation. Combined with the heat dissipation structure, they can more efficiently remove internal heat. Hot air can be discharged through the slots, while cold air enters through other openings, enhancing the heat dissipation effect and ensuring stable operation of the components.

[0028] Furthermore, the heat dissipation structure includes heat dissipation grooves 4 and protective rods 5. Heat dissipation grooves 4 are provided on the side of the fixed inner shell 2. Multiple sets of equidistantly arranged protective rods 5 are arranged between the heat dissipation grooves 4 on the side of the fixed inner shell 2. The other end face of the protective rods 5 is fixedly connected to the inner side of the protective outer shell 1. The heat dissipation grooves 4 increase the contact area with air and accelerate heat dissipation. In addition to supporting the fixed inner shell 2 and enhancing air circulation, the equidistantly arranged protective rods 5 can also play a certain shielding role. In some places with complex electromagnetic environments, the protective rods 5 can block some external electromagnetic interference to prevent it from affecting the normal operation of internal components such as LED light source 11 and reflective film 12, and ensure stable optical performance. The material of the protective rods 5 is a metal with good thermal conductivity, which can also assist in heat dissipation and transfer the heat of the fixed inner shell 2 to the protective outer shell 1 more quickly, thereby improving the overall heat dissipation efficiency.

[0029] Furthermore, the LED light source structure includes a mounting groove 3, an LED light source housing 10, and an LED light source 11. Mounting grooves 3 are provided on both sides of the fixed inner housing 2. The LED light source housing 10 is fixedly installed within the mounting grooves 3, and the LED light source 11 is fixedly installed on the outer side of the LED light source housing 10. The bottom of the LED light source 11 is fixedly connected to the fixed inner housing 2. The design precision of the mounting groove 3 is crucial to the stability of the LED light source housing 10. Precise dimensions of the mounting groove 3 ensure a tight installation of the LED light source housing 10, reducing shaking and preventing poor contact or damage between the LED light source 11 and other components due to vibration. Besides fixing the LED light source 11, the LED light source housing 10 also provides some protection and optical optimization for the LED light source 11. The housing 10 has good reflectivity, reflecting some of the light emitted to the side by the LED light source 11 back to the main optical path, improving light utilization. The surface treatment of the housing 10 also affects the light emission effect. For example, a frosted finish can make the light diffuse more evenly, avoiding localized over-brightness or under-brightness.

[0030] Furthermore, the light guide plate groove 7 is located below the reflective film groove 6, and a spacer block 16 is provided between the reflective film 12 and the light guide plate 13. The depth, flatness, and other parameters of the reflective film groove 6 and the light guide plate groove 7 will affect the installation effect and optical performance of the reflective film 12 and the light guide plate 13. If the depth is appropriate, it can ensure that the reflective film 12 and the light guide plate 13 are installed firmly, and will not affect the reflection and transmission of light due to being too deep or too shallow. The reflectivity of the reflective film 12 and the transmittance of the light guide plate 13 are key performance indicators. The reflective film 12 with high reflectivity can reflect more light to the light guide plate 13, while the light guide plate 13 with high transmittance can reduce the loss of light during the transmission process. The spacer block 16 is made of low-friction, high-insulation material, which can not only avoid friction between the reflective film 12 and the light guide plate 13, but also prevent the light propagation and component performance from being affected by factors such as static electricity.

[0031] Furthermore, the diffuser slot 9 is located below the total internal reflection enhancement plate slot 8. A spacer block 16 is provided between the total internal reflection enhancement plate 14 and the diffuser film 15. The dimensional accuracy and surface roughness of the total internal reflection enhancement plate slot 8 and the diffuser film slot 9 affect the working effect of the total internal reflection enhancement plate 14 and the diffuser film 15. Precise dimensions can ensure that the total internal reflection enhancement plate 14 and the diffuser film 15 fit tightly, reducing light leakage. The total internal reflection angle of the total internal reflection enhancement plate 14 and the diffusion angle of the diffuser film 15 are key to optimizing the light distribution. Reasonable design of the total internal reflection angle of the total internal reflection enhancement plate 14 can make the light more concentrated towards the diffuser film 15, while the diffusion angle of the diffuser film 15 determines the final diffusion range of the light. The spacer block 16 also plays a role in stabilizing the position of the components and preventing friction in this part of the structure, ensuring that the total internal reflection enhancement plate 14 and the diffuser film 15 maintain a suitable distance to achieve the best light diffusion effect.

[0032] Structural Description:

[0033] Protective Housing 1: Protective Housing 1 is the external protective structure of the split LED reflective film assembly. It is hollow inside and has square grooves on the top and sides. It provides installation space for the internal components. The square grooves can be used to install auxiliary equipment and assist in heat dissipation. It is an important protective barrier for the overall structure of the assembly.

[0034] Fixed inner shell 2: The fixed inner shell 2 is located on both sides inside the protective outer shell 1. It is used to install the LED light source structure, light source reflection structure, light source diffusion structure and heat dissipation structure, providing a stable installation base for each component and ensuring the orderly layout of the components.

[0035] Mounting slot 3: Mounting slot 3 is opened on both sides of the fixed inner shell 2 to fix the LED light source housing 10. Its precise design ensures that the LED light source housing 10 is installed firmly, reduces shaking, and avoids poor contact between the LED light source 11 and other components.

[0036] Heat dissipation groove 4: Heat dissipation groove 4 is opened on the side of the fixed inner shell 2, which increases the heat dissipation area. By increasing the contact with air, the heat generated by the LED light source 11 can be quickly dissipated to maintain the normal operating temperature of the component.

[0037] Protective rod 5: The protective rod 5 is set between the heat dissipation grooves 4 on the side of the fixed inner shell 2, and one end is fixed to the inner side of the protective outer shell 1. It not only supports the fixed inner shell 2 and enhances air circulation, but also shields electromagnetic interference and assists in heat dissipation.

[0038] Reflective diaphragm groove 6: The reflective diaphragm groove 6 is located in the upper part of the fixed inner shell 2 and is used to install the reflective diaphragm 12. Its depth, flatness and other parameters affect the installation effect and optical performance of the reflective diaphragm 12, ensuring normal light reflection.

[0039] Light guide plate groove 7: The light guide plate groove 7 is located in the upper part of the fixed inner shell 2 and below the reflective film groove 6. It is used to install the light guide plate 13. It works together with the reflective film groove 6 to ensure the stability of the light guide plate 13 and guide the propagation of light.

[0040] Total reflection enhancement plate slot 8: Total reflection enhancement plate slot 8 is opened in the lower half of the fixed inner shell 2 and is used to install total reflection enhancement plate 14. Its dimensional accuracy and surface roughness affect the working effect of total reflection enhancement plate 14 and determine the light focusing effect.

[0041] Diffuser slot 9: Diffuser slot 9 is located in the lower half of the fixed inner shell 2 and below the total reflection light enhancement plate slot 8. It is used to install the diffuser 15. It cooperates with the total reflection light enhancement plate slot 8 to ensure the installation of the diffuser 15 and achieve uniform light diffusion.

[0042] LED light source housing 10: The LED light source housing 10 is installed in the mounting slots 3 on both sides of the fixed inner housing 2, and the LED light source 11 is fixed on the outside. It plays the role of fixing and protecting the LED light source 11, and can also optimize the light and improve the light utilization rate.

[0043] LED light source 11: LED light source 11 is fixed on the outside of LED light source housing 10. It is the light-emitting core of the component. It emits light after being powered on and provides a stable light source for subsequent light processing, which determines the lighting effect of the component.

[0044] Reflective diaphragm 12: The reflective diaphragm 12 is installed in the reflective diaphragm groove 6 and is responsible for reflecting the light emitted by the LED light source 11 to the light guide plate 13. Its high reflectivity can improve the light utilization rate and adjust the light propagation direction.

[0045] Light guide plate 13: The light guide plate 13 is installed in the light guide plate groove 7, receives the light reflected by the reflective film 12 and guides its propagation. Its high light transmittance reduces light loss and concentrates the light in a specific direction.

[0046] Total reflection brightening film 14: The total reflection brightening film 14 is installed in the total reflection brightening film groove 8 to reflect and converge the light transmitted from the light guide plate 13, enhance the light intensity, and prepare for the diffuser film 15 to diffuse the light evenly.

[0047] Diffuser 15: Diffuser 15 is installed in diffuser 14 groove to evenly disperse the light gathered by total reflection enhancement film 14, improve the uniformity of illumination in the lighting area and avoid uneven brightness.

[0048] Spacer Separator 16: The spacer separator 16 is disposed between the reflective film 12 and the light guide plate 13, and between the total reflection enhancement film 14 and the diffusion film 15. It avoids direct friction between components, stabilizes the position of components, and ensures stable optical performance.

[0049] Working principle: The LED light source structure is the core part of the component's light emission, consisting of a mounting groove 3, an LED light source housing 10, and an LED light source 11. The LED light source 11 is fixedly installed on the outside of the LED light source housing 10. The LED light source housing 10 is installed in the mounting grooves 3 on both sides of the fixed inner shell 2, and its bottom is connected to the fixed inner shell 2. After the power is turned on, the LED light source 11 starts to emit light, and the emitted light is scattered in all directions. This design ensures that the LED light source 11 is stably installed, avoiding the light emission effect caused by shaking, and providing a stable light source for subsequent light processing. The light source reflection structure is responsible for the initial reflection and guidance of the light emitted by the LED light source 11, including a reflective film groove 6, a light guide plate groove 7, a reflective film 12, and a light guide plate 13. 2. The light guide plate 13 is installed in the reflective film groove 6 and the light guide plate groove 7 is installed in the light guide plate groove 7, with the light guide plate groove 7 located below the reflective film groove 6. There is a spacer block 16 between them. The light emitted by the LED light source 11 is directed towards the reflective film 12, and the reflective film 12 reflects the light to the light guide plate 13. The spacer block 16 ensures that the relative positions of the reflective film 12 and the light guide plate 13 are stable, avoiding mutual interference. After being processed by the reflective film 12 and the light guide plate 13, the light propagation direction is adjusted and concentrated in a specific direction, improving the light utilization rate and preparing for subsequent diffusion and illumination. The light source diffusion structure is used to further diffuse the light evenly, making the illumination area more uniform. It includes a total reflection enhancement film groove 8, a diffusion film groove 9, a total reflection enhancement film 14, and a diffusion film. A total internal reflection enhancement film 14 is installed in a total internal reflection enhancement film groove 8, and a diffuser film 15 is installed in a diffuser film groove 9. The diffuser film groove 9 is below the total internal reflection enhancement film groove 8, and there is a spacer block 16 between them. The light from the light guide plate 13 first reaches the total internal reflection enhancement film 14, which reflects and converges the light again, enhancing the light intensity. Then the light reaches the diffuser film 15, which evenly disperses the concentrated light, making the light evenly distributed over a larger area. This process greatly improves the uniformity of illumination in the lighting area, avoids uneven brightness, and meets the actual use requirements. The heat dissipation structure is crucial for maintaining the normal operation of the components and consists of a heat dissipation groove 4 and a protective rod 5. A heat dissipation groove is opened on the side of the fixed inner shell 2. The heat sink 4 has multiple sets of equidistant protective rods 5 between it and the heat dissipation slot 4. The other end of the protective rod 5 is fixedly connected to the inner side of the protective shell 1. When the LED light source 11 is working, it generates heat, which is conducted to the heat dissipation slot 4 through the fixed inner shell 2. The heat dissipation slot 4 increases the heat dissipation area and accelerates heat dissipation. The protective rods 5 not only support the fixed inner shell 2, but also form an air circulation channel between the protective shell 1 and the fixed inner shell 2, enhancing air convection and further improving heat dissipation efficiency. Good heat dissipation ensures that the LED light source 11 and other components operate at a suitable temperature, extending the component's lifespan and stabilizing optical performance. Throughout the entire component's operation, the protective shell 1 and the fixed inner shell 2 provide a stable support environment for the internal components, allowing the LED light source 11 to continuously emit light.Light passes sequentially through the light source reflection structure and the light source diffusion structure, achieving efficient reflection, guidance, and uniform diffusion. This provides bright and uniform light to the illuminated area. The heat dissipation structure operates simultaneously, promptly dissipating the heat generated by the LED light source 11, ensuring stable operation of all components. This close cooperation and collaborative operation of all structures gives the discrete LED reflective film assembly advantages in lighting applications, including high efficiency, stability, and long lifespan, meeting the high requirements of modern lighting and display fields for optical components.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable LED reflective film assembly, comprising a protective housing (1), characterized in that: The protective outer shell (1) has a fixed inner shell (2) fixedly installed on both sides inside. The fixed inner shell (2) has an LED light source structure on its side. The upper part of the fixed inner shell (2) has a light source reflection structure. The light source includes a reflective film groove (6), a light guide plate groove (7), a reflective film (12), and a light guide plate (13). The upper part of the fixed inner shell (2) has a reflective film groove (6) and a light guide plate groove (7). A reflective film (12) is fixedly installed in the reflective film groove (6), and a light guide plate (13) is fixedly installed in the light guide plate groove (7). The plate (13) has a light source diffusion structure in the lower half of the fixed inner shell (2). The light source diffusion structure includes a total reflection enhancement plate groove (8), a diffusion film groove (9), a total reflection enhancement plate (14), and a diffusion film (15). The lower half of the fixed inner shell (2) has a total reflection enhancement plate groove (8) and a diffusion film groove (9). A total reflection enhancement plate (14) is fixedly installed in the total reflection enhancement plate groove (8), and a diffusion film (15) is fixedly installed in the diffusion film groove (9). The side of the fixed inner shell (2) is provided with a heat dissipation structure.

2. The split LED reflective film assembly according to claim 1, characterized in that: The protective shell (1) is hollow inside, and a through square groove is provided on the top of the protective shell (1) and a through square groove is provided on one side of the protective shell (1).

3. A split LED reflective film assembly according to claim 1, characterized in that: The heat dissipation structure includes heat dissipation grooves (4) and protective rods (5). The side of the fixed inner shell (2) is provided with heat dissipation grooves (4). Multiple sets of protective rods (5) are arranged at equal intervals between the heat dissipation grooves (4) on the side of the fixed inner shell (2). The other end face of the protective rods (5) is fixedly connected to the inner side of the protective outer shell (1).

4. A split LED reflective film assembly according to claim 1, characterized in that: The LED light source structure includes a mounting groove (3), an LED light source housing (10), and an LED light source (11). The mounting groove (3) is provided on both sides of the fixed inner shell (2). The LED light source housing (10) is fixedly installed in the mounting groove (3). The LED light source (11) is fixedly installed on the outside of the LED light source housing (10). The bottom of the LED light source (11) is fixedly connected to the fixed inner shell (2).

5. A split LED reflective film assembly according to claim 1, characterized in that: The light guide plate groove (7) is located below the reflective film groove (6), and a spacer block (16) is provided between the reflective film (12) and the light guide plate (13).

6. A split LED reflective film assembly according to claim 1, characterized in that: The diffusion film groove (9) is located below the total reflection enhancement film groove (8), and a spacer block (16) is provided between the total reflection enhancement film (14) and the diffusion film (15).

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