A combined optical diffusion plate set

Abstract

The utility model discloses a combined optical diffusion plate group, including frame, the front end and rear end of frame inside all are symmetrically provided with five groups U type guide rail, ten groups the U type guide rail is vertical five rows arrangement, the right end of frame is provided with the apron, from top to bottom first group corresponding two groups the U type guide rail on slidingly provided with the brightening film, second group corresponding two groups the U type guide rail on slidingly provided with the upper diffusion plate, third group corresponding two groups the U type guide rail on slidingly provided with the light guide plate, fourth group corresponding two groups the U type guide rail on slidingly provided with the lower diffusion plate, the apron is installed through two groups the hinge rotation right end of frame, the apron right end downside is provided with the handle slot, the right lower part of frame is provided with two groups of clamping blocks, two groups clamping block and apron bottom end are clamped, the diaphragm adopts "drawer type" and slides into, and the operation is simple, and it is convenient to install the diaphragm and dismount.

Description

Technical Field

[0001] This utility model relates to the field of optical diffusion plate assembly technology, and more specifically, to a combined optical diffusion plate assembly. Background Technology

[0002] Optical diffuser assemblies typically refer to a series of components used in various lighting or display devices to achieve a uniform light diffusion effect. These diffusers change the propagation path of light, making the light emitted by the light source softer and more uniform, avoiding the glare caused by direct light, and improving the visual comfort and aesthetics of the overall lighting or display effect. In existing devices such as LCD displays and LED flat panel lights, multi-layered optical diffuser assemblies composed of a lower diffuser plate, a light guide plate, a reflective sheet, an upper diffuser plate, and a brightness enhancement film are commonly used to achieve light uniformity and brightness enhancement.

[0003] However, each optical film is usually fixed by adhesive tape or slots, requiring layer-by-layer alignment and installation, which is time-consuming, labor-intensive, and has low production efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a combined optical diffusion plate assembly to solve the technical problem mentioned in the background art that the optical films are usually fixed by adhesive tape or slots, requiring layer-by-layer alignment and installation, which is time-consuming, labor-intensive, and has low production efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A combined optical diffuser assembly includes a frame. Five sets of U-shaped guide rails are symmetrically arranged at both the front and rear ends inside the frame. These ten sets of U-shaped guide rails are arranged in five vertical rows. A cover plate is provided at the right end of the frame. From top to bottom, a brightness enhancement film is slidably disposed on the two sets of U-shaped guide rails corresponding to the first set; an upper diffuser plate is slidably disposed on the two sets of U-shaped guide rails corresponding to the second set; a light guide plate is slidably disposed on the two sets of U-shaped guide rails corresponding to the third set; a lower diffuser plate is slidably disposed on the two sets of U-shaped guide rails corresponding to the fourth set; and a reflective sheet is slidably disposed on the two sets of U-shaped guide rails corresponding to the fifth set.

[0009] The present invention is further configured such that two sets of hinges are provided on the upper right side of the frame, and the cover plate is rotatably installed on the right side of the frame through the two sets of hinges. A handle groove is provided on the lower right side of the cover plate, and two sets of locking blocks are provided on the lower right part of the frame. The two sets of locking blocks are engaged with the bottom end of the cover plate. When multiple sets of diaphragms are installed in the corresponding two sets of U-shaped guide rails, the cover plate is installed on the right side of the frame through the handle groove, thereby fixing the multiple sets of diaphragms and preventing the multiple sets of diaphragms from axially dislodging or loosening during transportation or vibration.

[0010] The present invention is further configured such that: a mounting groove is provided on both the front and rear sides of the lower right part of the frame; the two sets of locking blocks slide within the two sets of mounting grooves respectively; a first rod is provided at the bottom of each set of mounting grooves; a second rod is provided at the bottom of each set of locking blocks; a sliding groove is provided at the top of each set of first rods; the two sets of second rods are slidably connected to the two sets of sliding grooves; a spring is sleeved on the outer end of each set of second rods; a handle is provided at the right end of each set of second rods; and long grooves are provided connecting the right ends of the two sets of first rods and the lower front and lower rear sides of the right end of the frame; the two sets of long grooves on the front and the two sets of long grooves on the rear are connected. The slots are connected, and the two sets of handles slide in each pair of corresponding long slots. The front and rear sides of the bottom end of the cover plate are provided with slots. The two sets of locking blocks cooperate with the two sets of locking slots to engage. When the cover plate is closed on the frame, the cover plate will push the two sets of locking blocks to slide into the two sets of mounting slots of the frame. The two sets of second rods slide in the two sets of first rods. The two sets of springs are in a compressed state. When the two sets of locking blocks correspond to the two sets of locking slots at the bottom end of the cover plate, the rebound of the two sets of springs will drive the two sets of locking blocks to push into the two sets of locking slots at the bottom end of the cover plate, thereby tightening and fixing the cover plate. This can lock the cover plate and prevent it from loosening.

[0011] This utility model is further configured such that: two sets of guide blocks 1 are provided on the front and rear sides of the top of the brightness enhancement film; two sets of guide blocks 2 are provided on the front and rear sides of the top of the upper diffuser plate; two sets of guide blocks 3 are provided on the front and rear sides of the top of the light guide plate; two sets of guide blocks 4 are provided on the front and rear sides of the lower diffuser plate; and two sets of guide blocks 5 are provided on the front and rear sides of the top of the reflector. From top to bottom, the tops of the two sets of U-shaped guide rails corresponding to the first, second, third, and fifth sets are each provided with guide grooves; the inner ends of the two sets of U-shaped guide rails corresponding to the fourth set are provided with guide grooves. The four sets of guide blocks 1... The four sets of guide blocks 1, 2, 3, 4, and 5 are slidably connected to the guide grooves on the corresponding two sets of U-shaped guide rails. When installing the brightness enhancement film, upper diffuser plate, light guide plate, lower diffuser plate, and reflector, the four sets of guide blocks 1, 2, 3, 4, and 5 are slidably connected to the guide grooves on the corresponding two sets of U-shaped guide rails, thereby positioning and guiding multiple sets of films. This can play a role in guiding and positioning multiple sets of films, ensuring precise alignment and stable installation between multiple sets of films.

[0012] The present invention is further configured such that T-shaped sliding plates are provided on the front and rear sides of the top of the frame, and the external device is provided with matching T-shaped sliding rails. When installing the frame, the two sets of T-shaped sliding plates at the top of the frame are pushed horizontally along the two sets of T-shaped rails of the external device to complete the installation. This can achieve rapid positioning, high-precision alignment, and screwless fixing of the frame.

[0013] The present invention is further configured such that a handle is provided on the outer side of the bottom end of the two sets of handle plates. When the cover plate is unlocked, the handle is pressed, and the handle moves downward through the two sets of handle plates. The two sets of handle plates drive the two sets of second rods to slide downward within the two sets of first rods. The two sets of second rods drive the two sets of locking blocks to slide into the two sets of mounting slots of the frame. Then the cover plate is opened through the handle slot, so that the two sets of handle plates can move synchronously through the handle.

[0014] The present invention is further configured such that the first guide block, the second guide block, the third guide block, and the fifth guide block have different shapes, and the guide groove lengths of the two sets of U-shaped guide rails corresponding to the five groups from top to bottom are all different. The guide grooves of the two sets of U-shaped guide rails corresponding to the fourth group face inward, which can effectively prevent incorrect layer sequence or reverse installation. Moreover, each diaphragm can only slide into its corresponding groove end point to achieve precise positioning. Even if there is a human error, the incorrect diaphragm cannot slide in completely, or cannot enter the guide rail due to shape mismatch, thus achieving physical-level error prevention.

[0015] Beneficial effects

[0016] Compared with the prior art, this utility model provides a combined optical diffusion plate assembly, which has the following beneficial effects:

[0017] 1. Five sets of U-shaped guide rails are symmetrically arranged at both the front and rear ends inside the frame. From top to bottom, the first set of two U-shaped guide rails has a brightness enhancement film slidingly mounted on it, the second set of two U-shaped guide rails has an upper diffuser plate slidingly mounted on it, the third set of two U-shaped guide rails has a light guide plate slidingly mounted on it, the fourth set of two U-shaped guide rails has a lower diffuser plate slidingly mounted on it, and the fifth set of two U-shaped guide rails has a reflective sheet slidingly mounted on it. When the film needs to be installed, the film is slid into the corresponding two sets of U-shaped guide rails. The film slides in in a "drawer-like" manner, which is simple to operate and facilitates the installation and removal of the film.

[0018] 2. The cover plate is rotatably installed on the right end of the frame via two sets of hinges. A handle groove is provided on the lower side of the right end of the cover plate. After multiple sets of diaphragms are installed in the corresponding two sets of U-shaped guide rails, the cover plate is installed on the right end of the frame through the handle groove, thereby fixing the multiple sets of diaphragms and preventing the multiple sets of diaphragms from axially coming off or loosening during transportation or vibration.

[0019] 3. The two sets of locking blocks slide within the two sets of mounting slots respectively. A first rod is provided at the bottom of each of the two sets of mounting slots, and a second rod is provided at the bottom of each of the two sets of locking blocks. The two sets of second rods are slidably connected to the two sets of sliding grooves. A spring is sleeved on the outer end of each of the two sets of second rods, and a handle is provided at the right end of each of the two sets of second rods. Slots are provided on the front and rear sides of the bottom of the cover plate. The two sets of locking blocks engage with the two sets of slots. When the cover plate is closed on the frame, the cover plate pushes the two sets of locking blocks into the two sets of mounting slots of the frame, while the two sets of second rods slide within the two sets of first rods. The two sets of springs are in a compressed state. When the two sets of locking blocks align with the two sets of slots at the bottom of the cover plate, the springs rebound, causing the two sets of locking blocks to push against the two sets of slots at the bottom of the cover plate, thereby tightening and fixing the cover plate and preventing it from loosening. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a combined optical diffusion plate assembly according to this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of a combined optical diffusion plate assembly according to this utility model. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the connection structure between the U-shaped guide rail, the brightness enhancement film, and the guide block 1 in this utility model;

[0023] Figure 4This is a schematic diagram of the connection structure between the frame, hinges, and cover plate in this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the first rod, the second rod, and the handle in this utility model.

[0025] In the diagram: 1. Frame; 2. U-shaped guide rail; 3. Cover plate; 4. Brightness enhancement film; 5. Upper diffuser plate; 6. Light guide plate; 7. Lower diffuser plate; 8. Reflector sheet; 9. Hinge; 10. Handle groove; 11. Locking block; 12. First rod; 13. Second rod; 14. Spring; 15. Handle bar; 16. Guide block one; 17. Guide block two; 18. Guide block three; 19. Guide block four; 20. Guide block five; 21. T-shaped sliding plate; 22. Handle bar. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figure 1-5 A combined optical diffuser assembly includes a frame 1. Five sets of U-shaped guide rails 2 are symmetrically arranged at the front and rear ends inside the frame 1. The ten sets of U-shaped guide rails 2 are arranged in five vertical rows. A cover plate 3 is provided at the right end of the frame 1. A brightness enhancement film 4 is slidably arranged on the two sets of U-shaped guide rails corresponding to the first set from top to bottom. An upper diffuser plate 5 is slidably arranged on the two sets of U-shaped guide rails corresponding to the second set. A light guide plate 6 is slidably arranged on the two sets of U-shaped guide rails corresponding to the third set. A lower diffuser plate 7 is slidably arranged on the two sets of U-shaped guide rails corresponding to the fourth set. A reflective sheet 8 is slidably arranged on the two sets of U-shaped guide rails corresponding to the fifth set.

[0030] In this embodiment, when the diaphragm needs to be installed, the diaphragm is slid into the corresponding two sets of U-shaped guide rails 2. The diaphragm slides in in a "drawer-like" manner, which is simple to operate and facilitates the installation and removal of the diaphragm.

[0031] Please see Figure 1 , Figure 4 and Figure 5 As one embodiment of the cover plate 3, the frame 1 in this utility model is provided with two sets of hinges 9 on the upper right side. The cover plate 3 is rotatably installed on the right side of the frame 1 through the two sets of hinges 9. The lower right side of the cover plate 3 is provided with a handle groove 10. The lower right part of the frame 1 is provided with two sets of locking blocks 11. The two sets of locking blocks 11 are locked with the bottom end of the cover plate 3.

[0032] Specifically, after multiple diaphragms are installed in the corresponding two sets of U-shaped guide rails 2, the cover plate 3 is installed on the right end of the frame 1 through the handle groove 10, thereby fixing the multiple diaphragms and preventing them from axially dislodging or loosening during transportation or vibration.

[0033] Please see Figure 1 , Figure 4 and Figure 5 As one embodiment of the locking block 11, the frame 1 in this invention has mounting grooves on both the front and rear sides of its lower right portion. The two sets of locking blocks 11 slide within these mounting grooves. A first rod 12 is provided at the bottom of each of the two sets of mounting grooves, and a second rod 13 is provided at the bottom of each of the two sets of locking blocks 11. A sliding groove is provided at the top of each of the first rods 12, and the second rods 13 are slidably connected to the sliding grooves. A spring is sleeved on the outer end of each of the second rods 13. 14. Each of the two sets of second rods 13 has a handle 15 at its right end. The right ends of the two sets of first rods 12 and the lower front and lower rear sides of the right end of the frame 1 are connected by long grooves. The two sets of long grooves on the front side and the two sets of long grooves on the rear side are connected. The two sets of handles 15 slide in each pair of corresponding long grooves. The front and rear sides of the bottom end of the cover plate 3 are provided with slots. The two sets of locking blocks 11 are engaged with the two sets of slots. The outer side of the bottom end of the two sets of handles 15 is provided with a handle 22.

[0034] Specifically, when the cover plate 3 is closed on the frame 1, the cover plate 3 pushes the two sets of locking blocks 11 to slide into the two sets of mounting slots of the frame 1, while the two sets of second rods 13 slide within the two sets of first rods 12. The two sets of springs 14 are in a compressed state. When the two sets of locking blocks 11 correspond to the two sets of locking slots at the bottom of the cover plate 3, the two sets of springs 14 rebound and drive the two sets of locking blocks 11 to push into the two sets of locking slots at the bottom of the cover plate 3, thereby tightening and fixing the cover plate 3 and locking it to prevent it from loosening. When the cover plate 3 is unlocked, by pressing the handle 22, the handle 22 moves downward through the two sets of handle plates 15. The two sets of handle plates 15 drive the two sets of second rods 13 to slide downward within the two sets of first rods 12. The two sets of second rods 13 drive the two sets of locking blocks 11 to slide into the two sets of mounting slots of the frame 1. Then, the cover plate 3 is opened through the handle slot 10, which facilitates the synchronous movement of the two sets of handle plates 15 through the handle 22.

[0035] Please refer to Figures 1-4 As a further embodiment of the brightness enhancement film 4, upper diffuser plate 5, light guide plate 6, lower diffuser plate 7, and reflective sheet 8: Two sets of guide blocks 16 are provided on the front and rear sides of the top of the brightness enhancement film 4; two sets of guide blocks 27 are provided on the front and rear sides of the top of the upper diffuser plate 5; two sets of guide blocks 38 are provided on the front and rear sides of the top of the light guide plate 6; two sets of guide blocks 49 are provided on the front and rear sides of the lower diffuser plate 7; and two sets of guide blocks 50 are provided on the front and rear sides of the top of the reflective sheet 8. The first, second, third, and fifth sets correspond to the two sets of U-shaped... Each guide rail 2 has a guide groove at its top end. The inner ends of the two U-shaped guide rails 2 corresponding to the fourth group are also provided with guide grooves. The four groups of guide blocks 16, 17, 18, 19, and 20 are slidably connected to the guide grooves on the two corresponding U-shaped guide rails 2. The guide blocks 16, 17, 18, 19, and 20 have different shapes. The guide groove lengths of the two corresponding U-shaped guide rails 2 are different from top to bottom. The guide grooves of the two corresponding U-shaped guide rails 2 in the fourth group face inward.

[0036] Specifically, when installing the brightness enhancement film 4, upper diffuser plate 5, light guide plate 6, lower diffuser plate 7, and reflective sheet 8, the four sets of guide blocks 16, 17, 18, 19, and 20 on them are slidably connected to the guide grooves on the corresponding two sets of U-shaped guide rails 2, thereby positioning and guiding multiple sets of films. This can play a role in guiding and positioning multiple sets of films, ensuring precise alignment and stable installation between multiple sets of films, effectively preventing incorrect layer sequence or reverse installation. Each layer of film can only slide into its corresponding groove end point, achieving precise positioning. Even if there is a human error, the incorrect film cannot slide in completely or cannot enter the guide rail due to shape mismatch, achieving physical-level error prevention.

[0037] This utility model provides T-shaped sliding plates 21 on both the front and rear sides of the top of the frame 1. The external device, such as the housing of a lamp or the frame of a display, is provided with matching T-shaped sliding rails. When installing the frame 1, the two sets of T-shaped sliding plates 21 at the top of the frame 1 are pushed horizontally along the two sets of T-shaped rails of the external device to complete the installation. This allows for quick positioning, high-precision alignment, and screwless fixing of the frame 1.

[0038] The two sets of T-shaped sliding plates 21 can be further locked in conjunction with end locks or knobs.

[0039] In summary, when using the overall equipment:

[0040] When it is necessary to install the diaphragm, slide the diaphragm into the corresponding two sets of U-shaped guide rails 2. After multiple sets of diaphragms are installed in the corresponding two sets of U-shaped guide rails 2, cover the right end of the frame 1 with the handle groove 10 to fix the multiple sets of diaphragms.

[0041] When the cover plate 3 is closed on the frame 1, the cover plate 3 will push the two sets of locking blocks 11 to slide into the two sets of mounting slots of the frame 1, the two sets of second rods 13 will slide in the two sets of first rods 12, and the two sets of springs 14 will be in a compressed state. When the two sets of locking blocks 11 correspond to the two sets of locking slots at the bottom of the cover plate 3, the two sets of springs 14 will rebound and drive the two sets of locking blocks 11 to push into the two sets of locking slots at the bottom of the cover plate 3, thereby tightening and fixing the cover plate 3.

[0042] When installing the brightness enhancement film 4, the upper diffuser plate 5, the light guide plate 6, the lower diffuser plate 7, and the reflective sheet 8, the four sets of guide blocks 16, 17, 18, 19, and 20 on them are slidably connected to the guide grooves on the corresponding two sets of U-shaped guide rails 2, thereby positioning and guiding the multiple sets of films.

[0043] When installing frame 1, push the two sets of T-shaped sliding plates 21 at the top of frame 1 horizontally along the two sets of T-shaped tracks of the external equipment to complete the installation.

[0044] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0045] In all the solutions mentioned above, the operation of electrical components is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies. Therefore, their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. A combined optical diffusion plate assembly, comprising a frame (1), characterized in that: Five sets of U-shaped guide rails (2) are symmetrically arranged at the front and rear ends inside the frame (1). The ten sets of U-shaped guide rails (2) are arranged in five vertical rows. A cover plate (3) is provided at the right end of the frame (1). A brightening film (4) is slidably arranged on the two sets of U-shaped guide rails (2) corresponding to the first set from top to bottom. An upper diffuser plate (5) is slidably arranged on the two sets of U-shaped guide rails (2) corresponding to the second set. A light guide plate (6) is slidably arranged on the two sets of U-shaped guide rails (2) corresponding to the third set. A lower diffuser plate (7) is slidably arranged on the two sets of U-shaped guide rails (2) corresponding to the fourth set. A reflective sheet (8) is slidably arranged on the two sets of U-shaped guide rails (2) corresponding to the fifth set.

2. The combined optical diffusion plate assembly according to claim 1, characterized in that: The frame (1) has two sets of hinges (9) on the upper right side. The cover plate (3) is rotatably installed on the right side of the frame (1) through the two sets of hinges (9). The cover plate (3) has a handle groove (10) on the lower right side. The frame (1) has two sets of locking blocks (11) on the lower right side. The two sets of locking blocks (11) are locked to the bottom of the cover plate (3).

3. The combined optical diffusion plate assembly according to claim 2, characterized in that: The frame (1) has mounting grooves on its lower right front and rear sides. Two sets of locking blocks (11) slide within these mounting grooves. A first rod (12) is located at the bottom of each mounting groove, and a second rod (13) is located at the bottom of each locking block (11). A sliding groove is located at the top of each first rod (12), and the second rods (13) are slidably connected to the sliding grooves. A spring is fitted around the outer end of each second rod (13). 14) Both sets of the second rods (13) are provided with handles (15) on the right end. Both sets of the first rods (12) are provided with long grooves on the lower front and lower back sides of the right end of the frame (1). The two sets of long grooves on the front side and the two sets of long grooves on the back side are connected. The two sets of handles (15) slide in the long grooves corresponding to each pair of sets. The front and back sides of the bottom end of the cover plate (3) are provided with slots. The two sets of slots (11) are engaged with the two sets of slots.

4. The combined optical diffusion plate assembly according to claim 1, characterized in that: Two sets of guide blocks (16) are provided on the front and rear sides of the top of the brightening film (4), two sets of guide blocks (17) are provided on the front and rear sides of the top of the upper diffuser plate (5), two sets of guide blocks (18) are provided on the front and rear sides of the top of the light guide plate (6), two sets of guide blocks (19) are provided on the front and rear sides of the lower diffuser plate (7), and two sets of guide blocks (20) are provided on the front and rear sides of the top of the reflector (8). The top of the two sets of U-shaped guide rails (2) corresponding to the first, second, third and fifth sets from top to bottom are provided with guide grooves, and the inner ends of the two sets of U-shaped guide rails (2) corresponding to the fourth set are provided with guide grooves. The four sets of guide blocks (16), four sets of guide blocks (17), four sets of guide blocks (18), four sets of guide blocks (19) and four sets of guide blocks (20) are slidably connected to the guide grooves on the corresponding two sets of U-shaped guide rails (2).

5. A combined optical diffusion plate assembly according to claim 1, characterized in that: T-shaped sliding plates (21) are provided on the front and rear sides of the top of the frame (1).

6. A combined optical diffusion plate assembly according to claim 3, characterized in that: The two sets of handle plates (15) are provided with handle bars (22) on the outer side of the bottom end.

7. A combined optical diffusion plate assembly according to claim 4, characterized in that: The guide block 1 (16), guide block 2 (17), guide block 3 (18) and guide block 5 (20) have different shapes. The guide groove lengths of the two sets of U-shaped guide rails (2) corresponding to the five groups from top to bottom are all different. The guide grooves of the two sets of U-shaped guide rails (2) corresponding to the fourth group face inward.

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