Anti-light-leakage vehicle-mounted backlight source rubber frame
By adopting a rectangular frame design and sealing ring in the LED backlight housing, combined with fixing blocks, locking pins and threaded rods, the problem of light leakage at the connection of the backlight housing was solved, achieving stable fixation and anti-light leakage effect for the backlight.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN DINGHAO DISPLAY TECH CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-01
AI Technical Summary
Existing LED backlight frames are prone to light leakage at the joints, affecting display quality.
A light-leakage-proof vehicle backlight frame was designed. By setting a sealing structure between the frames, including components such as sealing grooves, sealing rings, fixing blocks, locking pins, and threaded rods, the connection sealing and stability are enhanced.
It effectively prevents backlight leakage, ensures display quality, and maintains the stability and fixation of the backlight while the vehicle is in motion.
Smart Images

Figure CN224190362U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of backlight frame, and particularly relates to a backlight frame for preventing light leakage in vehicles. Background Technology
[0002] A backlight is a light source behind an LCD screen, and its luminous effect directly affects the visual effect of the LCD screen. Backlights are widely used, and a backlight frame is required during the installation process. The backlight frame is a core structural component of the backlight system in an LCD module, mainly used to support optical films, light guide plates, and light source components, and to optimize light utilization through light blocking and reflection functions. Its main body is usually made of polycarbonate and glass fiber composite materials, which combine high rigidity, dimensional stability, and light blocking properties.
[0003] The existing authorized public account CN208332175U discloses an LED backlight frame, including a lower frame and an upper frame on top of the lower frame. The upper frame is fixedly attached to the lower frame. A silicone layer is embedded inside the lower frame and fixedly attached to it. A coated silicone layer is placed on top of the silicone layer and bonded to the lower frame with adhesive. One end of the lower frame has an inlet hole, and an outlet hole is located on the side of the inlet hole. This LED backlight frame has a compact and stable structure, comprehensive protection measures, optimized design, convenient and flexible use, safe and reliable operation, high stability, strong wear resistance, and is not easily damaged. It provides excellent protection for the LED backlight, is multifunctional, easy to install and remove, has low casting cost, high controllability, and broad application prospects and practical advantages. However, the aforementioned LED backlight frame does not have a sealing structure between the upper and lower frames. After the backlight is installed inside the upper and lower frames, the light generated by the backlight can easily leak out from the connection between the upper and lower frames, thus affecting the display quality. Therefore, it is necessary to provide a backlight frame for vehicles that prevents light leakage to solve the above problem. Utility Model Content
[0004] The technical content of this utility model is to provide a light-leakage-proof vehicle backlight frame.
[0005] To solve the above problems, this utility model provides a light-leakage-proof vehicle backlight frame, including a first frame, a second frame installed at the bottom of the first frame, a sealing frame installed at the bottom of the first frame, a sealing groove formed at the top of the second frame, an assembly plate installed on both the first and second frames, sealing rings installed on the inner sides of the first and second frames, an installation groove formed at the bottom of the second frame, a fixing block installed inside the installation groove, an installation block installed on the side of the fixing block, a threaded tube installed on the installation block, a threaded rod installed inside the threaded tube, and a locking pin installed at the top of the second frame.
[0006] As a further solution of this utility model, the first frame and the second frame are configured as rectangular structures, and a backlight structure can be fixedly installed on their inner sides. The sealing rings installed on the inner sides of the first frame and the second frame are fitted and installed at the joint of the first frame and the second frame, thereby increasing the degree of connection and sealing between the first frame and the second frame.
[0007] As a further solution of this utility model, the sealing frame is disposed in the sealing groove at the top of the second frame, and the sealing frame and the sealing groove are adapted to each other, thereby making the connection between the first frame and the second frame more tightly sealed.
[0008] As a further solution of this utility model, a set of assembly plates is installed on the bottom of the front and back sides of the first frame and the top of the front and back sides of the second frame. The two sets of assembly plates on the first frame and the second frame are fixedly connected by three sets of fixing bolts, thereby fixing the two sets of assembly plates together.
[0009] As a further solution of this utility model, both the fixing block and the mounting groove are configured as T-shaped structures, and the mounting groove penetrates the bottom structure of the second frame, so that the fixing block is slidably installed into the mounting groove.
[0010] As a further solution of this utility model, the locking pin installed on the top of the second frame is installed on the top of the mounting groove. Two sets of locking pins are symmetrically installed on the top of a set of mounting grooves. The locking pin passes through the locking hole opened on the second frame and is inserted into the interior of the fixing block. The top of the locking pin is flush with the top of the second frame. The top of the locking pin is set with an internal hexagonal structure so that it can be rotated by a tool.
[0011] As a further solution of this utility model, four sets of mounting slots are symmetrically opened on the left and right sides of the bottom of the second frame, and mounting holes are opened on the mounting blocks installed on the side of the fixing block. The threaded tube is fixedly installed in them, and the top of the threaded rod is set as a T-shaped structure so as to be rotated using tools.
[0012] Compared with related technologies, the light-leakage-proof vehicle backlight frame provided by this utility model has the following beneficial effects:
[0013] 1. This utility model has a sealing frame installed at the bottom of the first frame and a sealing groove opened at the top of the second frame. The sealing frame and the sealing groove are adapted to each other, thereby making the connection between the first frame and the second frame more sealed. At the same time, a sealing ring is fitted at the inner connection of the first frame and the second frame, which can further increase the connection between the first frame and the second frame and prevent light leakage from the backlight.
[0014] 2. This utility model features an installation groove at the bottom of the second frame, where a fixing block is installed. Both the fixing block and the installation groove are T-shaped structures. The installation groove penetrates the bottom structure of the second frame. By sliding the fixing block into the installation groove, the fixing block cannot be laterally disengaged from the installation groove. A locking pin is installed at the top of the second frame. Two sets of locking pins are symmetrically installed at the top of one set of installation grooves. The locking pins pass through locking holes on the second frame and are inserted into the interior of the fixing block. Thus, the fixing block is fixedly installed inside the installation groove by the two sets of locking pins. The top of the locking pin is flush with the top of the second frame, so as not to affect the connection and sealing degree between the first and second frames. The top of the locking pin is set with an internal hexagonal structure so that it can be rotated by a tool.
[0015] 3. This utility model has an installation hole on the mounting block installed on the side of the fixing block, in which a threaded tube is installed. The top of the threaded rod is set with a T-shaped structure so that it can be rotated with a tool, so that the threaded rod can move axially along the threaded tube. Then, the threaded rod can be fixedly installed into the fixing hole opened on the vehicle. The four sets of threaded rods on both sides of the second frame can realize the fixed installation of the whole device inside the vehicle, so that the backlight can remain stable during the vehicle's operation. Attached Figure Description
[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a top-view three-dimensional structural diagram of the anti-light leakage vehicle backlight frame of this utility model.
[0018] Figure 2 This is a schematic diagram of the first and second frame structures of the anti-leakage vehicle backlight frame of this utility model.
[0019] Figure 3 This is a frontal three-dimensional structural diagram of the anti-light leakage vehicle backlight frame of this utility model;
[0020] Figure 4This is an exploded three-dimensional structural diagram of the anti-leakage vehicle backlight frame of this utility model.
[0021] Figure 5 This is a cross-sectional three-dimensional structural diagram of the anti-light leakage vehicle backlight frame of this utility model.
[0022] Figure 6 This is a side view of the second frame structure of the anti-leakage vehicle backlight frame of this utility model;
[0023] Figure 7 This is a schematic diagram of the top structure of the second frame of the anti-leakage vehicle backlight frame of this utility model.
[0024] In the diagram: 1. First frame; 2. Second frame; 3. Sealing frame; 4. Assembly plate; 5. Sealing ring; 6. Mounting groove; 7. Fixing block; 8. Mounting block; 9. Threaded pipe; 10. Threaded rod; 11. Locking pin. Detailed Implementation
[0025] Please refer to the following: Figure 1-7 The light-leakage-proof vehicle backlight frame includes a first frame 1, a second frame 2 mounted on the bottom of the first frame 1, a sealing frame 3 mounted on the bottom of the first frame 1, a sealing groove on the top of the second frame 2, an assembly plate 4 mounted on both the first frame 1 and the second frame 2, sealing rings 5 mounted on the inner sides of the first frame 1 and the second frame 2, an installation groove 6 on the bottom of the second frame 2, a fixing block 7 mounted inside the installation groove 6, an installation block 8 mounted on the side of the fixing block 7, a threaded tube 9 mounted on the installation block 8, a threaded rod 10 mounted inside the threaded tube 9, and a locking pin 11 mounted on the top of the second frame 2.
[0026] Preferably, the first frame 1 and the second frame 2 are rectangular structures, and a backlight structure can be fixedly installed on their inner sides. The sealing rings 5 installed on the inner sides of the first frame 1 and the second frame 2 are fitted together at the joint of the first frame 1 and the second frame 2, thereby increasing the degree of sealing of the connection between the first frame 1 and the second frame 2 and preventing light leakage from the backlight.
[0027] Preferably, the sealing frame 3 is disposed in the sealing groove at the top of the second frame 2, and the sealing frame 3 and the sealing groove are adapted to each other, thereby making the connection between the first frame 1 and the second frame 2 more sealed, thereby further preventing backlight leakage.
[0028] Preferably, a set of assembly plates 4 are installed on the bottom sides of the front and back sides of the first frame 1 and the top sides of the front and back sides of the second frame 2. Two adjacent sets of assembly plates 4 on the first frame 1 and the second frame 2 are fixedly connected by three sets of fixing bolts, thereby fixing the two sets of assembly plates 4 together, and thus fixing the first frame 1 and the second frame 2 together.
[0029] Preferably, both the fixing block 7 and the mounting groove 6 are T-shaped structures. The mounting groove 6 penetrates the bottom structure of the second frame 2. By sliding the fixing block 7 into the mounting groove 6, the fixing block 7 cannot be detached from the mounting groove 6 laterally.
[0030] Preferably, the locking pin 11 installed on the top of the second frame 2 is installed on the top of the mounting groove 6. Two sets of locking pins 11 are symmetrically installed on the top of a set of mounting grooves 6. The locking pin 11 passes through the locking hole opened on the second frame 2 and is inserted into the interior of the fixing block 7. Thus, the fixing block 7 is fixedly installed in the interior of the mounting groove 6 by the two sets of locking pins 11. The top of the locking pin 11 is flush with the top of the second frame 2, so as not to affect the connection and sealing degree of the first frame 1 and the second frame 2. The top of the locking pin 11 is set with an internal hexagonal structure so that it can be rotated by a tool.
[0031] Preferably, four sets of mounting slots 6 are symmetrically provided on the left and right sides of the bottom of the second frame 2. Mounting blocks 8 are provided on the side of the fixing block 7, and threaded tubes 9 are fixedly installed in them. The top of the threaded rod 10 is set with a T-shaped structure so that it can be rotated with a tool, thereby causing the threaded rod 10 to move axially along the threaded tube 9. In this way, the threaded rod 10 can be fixedly installed into the fixing hole opened on the vehicle. The four sets of threaded rods 10 on both sides of the second frame 2 can realize the fixed installation of the whole device inside the vehicle.
[0032] The standard parts used in this embodiment can be purchased directly from the market, and can also be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0033] 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, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.
Claims
1. A light-leakage-proof vehicle backlight frame, comprising a first frame (1), wherein a second frame (2) is mounted on the bottom of the first frame (1), characterized in that: A sealing frame (3) is installed at the bottom of the first frame (1), a sealing groove is provided at the top of the second frame (2), an assembly plate (4) is installed on both the first frame (1) and the second frame (2), a sealing ring (5) is installed on the inner side of the first frame (1) and the second frame (2), an installation groove (6) is provided at the bottom of the second frame (2), a fixing block (7) is installed inside the installation groove (6), an installation block (8) is installed on the side of the fixing block (7), a threaded tube (9) is installed on the installation block (8), a threaded rod (10) is installed inside the threaded tube (9), and a locking pin (11) is installed at the top of the second frame (2).
2. The anti-leakage vehicle backlight frame according to claim 1, characterized in that: The first frame (1) and the second frame (2) are set as rectangular structures, and a backlight structure can be fixedly installed on their inner sides. The sealing rings (5) installed on the inner sides of the first frame (1) and the second frame (2) are fitted and installed at the joint of the first frame (1) and the second frame (2).
3. The anti-light leakage vehicle backlight frame according to claim 1, characterized in that: The sealing frame (3) is disposed in the sealing groove at the top of the second frame (2), and the sealing frame (3) and the sealing groove are adapted to each other.
4. The anti-leakage vehicle backlight frame according to claim 1, characterized in that: A set of assembly plates (4) is installed on the bottom of the front and back sides of the first frame (1) and the top of the front and back sides of the second frame (2). The two sets of assembly plates (4) on the first frame (1) and the second frame (2) are fixedly connected by three sets of fixing bolts.
5. The anti-light leakage vehicle backlight frame according to claim 1, characterized in that: Both the fixing block (7) and the mounting groove (6) are configured as T-shaped structures, and the mounting groove (6) penetrates the bottom structure of the second frame (2).
6. The anti-light leakage vehicle backlight frame according to claim 1, characterized in that: The locking pin (11) installed on the top of the second frame (2) is installed on the top of the mounting slot (6). Two sets of locking pins (11) are symmetrically installed on the top of a set of mounting slots (6). The locking pin (11) passes through the locking hole opened on the second frame (2) and is inserted into the interior of the fixing block (7). The top of the locking pin (11) is flush with the top of the second frame (2). The top of the locking pin (11) is set as an internal hexagonal structure.
7. The anti-light leakage vehicle backlight frame according to claim 1, characterized in that: The second frame (2) has four sets of mounting slots (6) symmetrically opened on the left and right sides of the bottom. The mounting block (8) installed on the side of the fixing block (7) has mounting holes. The threaded tube (9) is fixedly installed in it. The top of the threaded rod (10) is set as a T-shaped structure.
Citation Information
Patent Citations
Frame is glued to LED backlight
CN208332175U