Reflector plate fixing structure

Abstract

The utility model relates to the technical field of backlight modules, and discloses a reflector plate fixing structure which comprises a back plate, a lamp strip plate and a reflecting plate, the lamp strip plate is fixedly installed on the back plate, a first through groove is formed in the top of the reflecting plate, a lamp strip on the lamp strip plate extends out of the first through groove, a fixing frame is arranged between the back plate and the reflecting plate, and the fixing frame is fixedly installed on the back plate. The back plate and the reflecting plate are connected through the fixing frame, the reflecting plate is installed, the rectangular block is clamped into the rectangular base, the reflecting plate is installed on the fixing frame, and the rectangular block directly connected with the reflecting plate is arranged at the bottom of the reflecting plate, so that it is guaranteed that the reflecting surface on the reflecting plate cannot be damaged; the locking component is arranged to lock the rectangular block and the rectangular seat, the rectangular block is prevented from falling off from the rectangular seat, and meanwhile, due to the fact that the locking component is arranged on the fixing frame and the rectangular seat, the reflecting plate cannot be affected by elastic deformation of the locking component.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight modules, and specifically relates to a fixing structure for a reflective sheet. Background Art

[0002] There are mainly two existing fixing methods for the reflective sheet and the light bar board body. One is screw fixing, which is relatively cumbersome, consumes a lot of manpower, time and materials, and has a high cost; the other is double-sided tape fixing. In this fixing method, the flatness of the reflective sheet is not easy to control during pasting, the production efficiency is low, and the labor cost is also high.

[0003] The existing Chinese patent CN210515977U discloses a fixing structure for a reflective sheet, a backlight module and a display device. The fixing structure for the reflective sheet, the backlight module and the display device are installed by matching the integrally formed tongue on the reflective plate with the slot on the light bar board body in a snap-fit manner. Although the installation is simple and fast, there are still the following problems: 1. The deformation of the tongue under force will damage the flatness of the reflective plate; 2. The tongue will cause the reflection range on the reflective plate to become smaller; 3. There is a lack of a supporting structure for the reflective plate, and the deformation of the reflective plate itself will also occur when the tongue on the reflective plate is deformed under force. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixing structure for a reflective sheet to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fixing structure for a reflective sheet, including a back plate, a light strip board, and a reflective plate. The light strip board is fixedly installed on the back plate. A first through groove is opened at the top of the reflective plate, and the light strip on the light strip board extends out from the first through groove. A fixing frame is arranged between the back plate and the reflective plate;

[0006] The bottom of the left and right sides of the fixing frame is fixedly installed on the back plate. The reflective plate is placed on the fixing frame. A second through groove is opened on the fixing frame, and the second through groove corresponds to the light strip board. A rectangular seat is fixedly installed at the bottom of the fixing frame. A rectangular block is fixedly installed at the bottom of the reflective plate, and the rectangular block is snapped into the rectangular seat. A locking component is arranged outside the rectangular seat.

[0007] Further, the locking component includes a rectangular frame. The rectangular frame is arranged below the fixing frame. A mounting plate is fixedly installed on the inner side of the rectangular frame. A triangular block is fixedly installed on the left outer wall of the mounting plate. Triangular grooves are opened on both the rectangular block and the rectangular seat. The triangular block is snapped into the triangular grooves on the rectangular block and the rectangular seat. A first spring is fixedly installed on the right outer wall of the rectangular frame, and the right end of the first spring is fixedly connected to the inner side of the fixing frame.

[0008] Further, an avoidance groove is provided at the left bottom of the rectangular frame. A lower pressing plate is movably arranged on the left side of the rectangular frame. A limiting protrusion is fixedly installed on the right outer wall of the lower pressing plate. The limiting protrusion is snapped into the avoidance groove. A push rod is in contact with the top of the lower pressing plate. The top end of the push rod is fixedly connected to the bottom of the reflector. The push rod movably penetrates through the top of the fixing frame. A second spring is fixedly installed at the bottom of the lower pressing plate. The bottom end of the second spring presses on the back plate.

[0009] Further, a plurality of heat dissipation holes are provided at the top of the fixing frame, and the heat dissipation holes are dispersed on the fixing frame.

[0010] Further, a plurality of rectangular blocks and rectangular seats are provided and are dispersed on the reflector and the fixing frame. The fixing frame is welded to the back plate.

[0011] Further, the length of the limiting protrusion is greater than the length of the triangular block. Three second springs and limiting protrusions are provided and are equally spaced at the bottom of the lower pressing plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The back plate and the reflector are connected through the fixing frame to install the reflector. The reflector is installed on the fixing frame by snapping the rectangular block into the rectangular seat. Since the rectangular block directly connected to the reflector is arranged at the bottom of the reflector, it is ensured that the reflecting surface on the reflector will not be damaged. A locking component is provided to lock the rectangular block and the rectangular seat to prevent the rectangular block from falling out of the rectangular seat. At the same time, since the locking component is arranged on the fixing frame and the rectangular seat, the reflector will not be affected by the elastic deformation of the locking component.

[0014] 2. A rectangular frame is provided for installing the mounting plate. The rectangular block and the rectangular seat are locked by the triangular block on the mounting plate being snapped into the triangular grooves on the rectangular block and the rectangular seat. The rectangular frame is pushed to move left by the first spring, thereby ensuring that the triangular block can be snapped into the triangular grooves on the rectangular block and the rectangular seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an exploded view of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the present utility model after the emitter plate is installed;

[0017] Figure 3 is a schematic front view structural diagram of the reflector of the present utility model;

[0018] Figure 4 is a schematic bottom upward view structural diagram of the fixing frame of the present utility model;

[0019] Figure 5 This is a schematic structural view of the rectangular frame and the mounting plate of the present utility model;

[0020] Figure 6 This is a schematic structural view of the bottom pressing plate and the bottom of the rectangular frame of the present utility model as seen from below.

[0021] In the figure: 1, back plate; 2, light strip board; 3, reflector; 4, fixing frame; 5, rectangular block; 6, first through groove; 7, second through groove; 8, rectangular frame; 9, rectangular seat; 10, heat dissipation holes; 11, mounting plate; 12, triangular block; 13, first spring; 14, avoidance groove; 15, bottom pressing plate; 16, second spring; 17, limiting protrusion; 18, push rod. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Please refer to Figures 1-6 , the present utility model provides a technical solution: a reflective sheet fixing structure, including a back plate 1, a light strip board 2, and a reflector 3. The light strip board 2 is fixedly installed on the back plate 1. A first through groove 6 is opened at the top of the reflector 3, and the light strips on the light strip board 2 extend out from the first through groove 6. A fixing frame 4 is arranged between the back plate 1 and the reflector 3;

[0024] The bottom of the left and right sides of the fixing frame 4 is fixedly installed on the back plate 1. The reflector 3 is placed on the fixing frame 4. A second through groove 7 is opened on the fixing frame 4, and the second through groove 7 corresponds to the light strip board 2. A rectangular seat 9 is fixedly installed at the bottom of the fixing frame 4. A rectangular block 5 is fixedly installed at the bottom of the reflector 3. The rectangular block 5 is snapped into the rectangular seat 9. A locking member is arranged outside the rectangular seat 9. The reflector 3 is supported by the fixing frame 4 to prevent the reflector 3 from deforming. The back plate 1 and the reflector 3 are connected by the fixing frame 4 to install the reflector 3. By snapping the rectangular block 5 into the rectangular seat 9, the reflector 3 is installed on the fixing frame 4. Since the rectangular block 5 directly connected to the reflector 3 is arranged at the bottom of the reflector 3, it is ensured that the reflecting surface on the reflector 3 will not be damaged. The locking member is arranged to lock the rectangular block 5 and the rectangular seat 9 to prevent the rectangular block 5 from falling off the rectangular seat 9. At the same time, since the locking member is arranged on the fixing frame 4 and the rectangular seat 9, the reflector 3 will not be affected by the elastic deformation of the locking member;

[0025] The locking component includes a rectangular frame 8 which is arranged below the fixing frame 4. An installation plate 11 is fixedly installed inside the rectangular frame 8. A triangular block 12 is fixedly installed on the left outer wall of the installation plate 11. Triangular grooves are formed on both the rectangular block 5 and the rectangular seat 9. The triangular block 12 is inserted into the triangular grooves on the rectangular block 5 and the rectangular seat 9. A first spring 13 is fixedly installed on the right outer wall of the rectangular frame 8, and the right end of the first spring 13 is fixedly connected to the inside of the fixing frame 4. The rectangular frame 8 is provided for installing the installation plate 11. The rectangular block 5 and the rectangular seat 9 are locked by the triangular block 12 on the installation plate 11 being inserted into the triangular grooves on the rectangular block 5 and the rectangular seat 9. The rectangular frame 8 is pushed to move leftward by the first spring 13, thereby ensuring that the triangular block 12 can be inserted into the triangular grooves on the rectangular block 5 and the rectangular seat 9;

[0026] An avoidance groove 14 is formed at the left bottom of the rectangular frame 8. A lower pressing plate 15 is movably arranged on the left side of the rectangular frame 8. A limiting protrusion 17 is fixedly installed on the right outer wall of the lower pressing plate 15, and the limiting protrusion 17 is inserted into the avoidance groove 14. A push rod 18 is in contact with the top of the lower pressing plate 15. The top end of the push rod 18 is fixedly connected to the bottom of the reflector 3. The push rod 18 movably penetrates through the top of the fixing frame 4. A second spring 16 is fixedly installed on the bottom of the lower pressing plate 15, and the bottom end of the second spring 16 presses on the back plate 1. When the reflector 3 is not installed on the fixing frame 4, the second spring 16 pushes up the lower pressing plate 15, so that the limiting protrusion 17 on the lower pressing plate 15 is staggered from the avoidance groove 14. At this time, the limiting protrusion 17 pushes the rectangular frame 8 to move rightward, that is, to stagger the triangular block 12 from the rectangular seat 9, ensuring that the rectangular block 5 at the bottom of the reflector 3 can be inserted into the rectangular seat 9. When the reflector 3 moves downward to drive the rectangular block 5 to be inserted into the rectangular seat 9, the reflector 3 drives the push rod 18 to move downward, and the push rod 18 presses the lower pressing plate 15 downward, so that the limiting protrusion 17 is aligned with the avoidance groove 14. At this time, the first spring 13 pushes the rectangular frame 8 to move leftward. Because the triangular grooves on the rectangular block 5 and the rectangular seat 9 are not aligned, the triangular block 12 cannot be inserted into the triangular groove at this time. Until the rectangular block 5 is completely inserted into the rectangular seat 9, the triangular block 12 can be inserted into the triangular groove to lock the rectangular block 5 and the rectangular seat 9;

[0027] A heat dissipation hole 10 is formed at the top of the fixing frame 4. There are multiple heat dissipation holes 10 which are dispersed on the fixing frame 4. When the fixing frame 4 supports the reflector 3, opening the heat dissipation holes 10 can ensure that air contacts the bottom of the reflector 3, thereby dissipating heat from the reflector 3;

[0028] There are multiple rectangular blocks 5 and rectangular seats 9 which are dispersed on the reflector 3 and the fixing frame 4. The fixing frame 4 is welded to the back plate 1. Since there is only one fixing frame 4, the welding method is simple and fast. By setting multiple rectangular blocks 5 and rectangular seats 9, the connection parts between the reflector 3 and the fixing frame 4 are increased, and the connection strength between the reflector 3 and the fixing frame 4 is enhanced;

[0029] The length of the limit protrusion 17 is greater than the length of the triangular block 12, ensuring that the limit protrusion 17 can push the rectangular frame 8 to move to the right by a sufficient distance, so that the triangular block 12 and the rectangular seat 9 are completely staggered. There are three second springs 16 and limit protrusions 17, and they are evenly distributed at the bottom of the lower pressing plate 15 to avoid the problem that the lower pressing plate 15 tilts unilaterally when the lower pressing plate 15 is pressed down.

[0030] Working principle: During use, first install the lamp strip board 2 on the back plate 1, and then weld the fixing frame 4 on the back plate 1. When welding the fixing frame 4, let the lamp strip board 2 extend out from the second through groove 7. Align the rectangular block 5 on the reflector 3 with the rectangular seat 9 and insert it. As the reflector 3 moves downward, it drives the push rod 18 to move downward. The push rod 18 moves downward to push the lower pressing plate 15 to move downward, and then drives the limit protrusion 17 to move downward until the entire rectangular block 5 is inserted into the rectangular seat 9. At this time, the limit protrusion 17 is aligned with the avoidance groove 14 and no longer prevents the rectangular frame 8 from moving to the left. The first spring 13 pushes the rectangular frame 8 to move to the left, driving the mounting plate 11 to move to the left, so that the triangular block 12 on the mounting plate 11 is caught in the triangular grooves on the rectangular block 5 and the rectangular seat 9, locking the rectangular block 5 and the rectangular seat 9, and thus completing the installation of the reflector 3.

[0031] Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A reflector fixing structure, comprising a back plate (1), a light strip plate (2), and a reflector plate (3), characterized in that: The light strip plate (2) is fixedly mounted on the back plate (1); a through groove (6) is provided on the top of the reflector plate (3); the light strip on the light strip plate (2) extends from the through groove (6); and a fixing frame (4) is provided between the back plate (1) and the reflector plate (3); The bottoms of the left and right sides of the fixing frame (4) are fixedly mounted on the back plate (1); the reflecting plate (3) is placed on the fixing frame (4); a second through slot (7) is provided on the fixing frame (4); the second through slot (7) corresponds to the light strip plate (2); a rectangular seat (9) is fixedly mounted on the bottom of the fixing frame (4); a rectangular block (5) is fixedly mounted on the bottom of the reflecting plate (3); the rectangular block (5) is inserted into the rectangular seat (9); and a locking component is provided on the outside of the rectangular seat (9).

2. A reflector fixing structure according to claim 1, characterized in that: The locking component comprises a rectangular frame (8), the rectangular frame (8) is arranged below the fixing frame (4), a mounting plate (11) is fixedly mounted on the inner side of the rectangular frame (8), a triangular block (12) is fixedly mounted on the left outer wall of the mounting plate (11), triangular grooves are provided on the rectangular block (5) and the rectangular seat (9), the triangular block (12) is inserted into the triangular grooves on the rectangular block (5) and the rectangular seat (9), a spring (13) is fixedly mounted on the right outer wall of the rectangular frame (8), and the right end of the spring (13) is fixedly connected to the inner side of the fixing frame (4).

3. The reflector fixing structure according to claim 2, characterized in that: The left bottom of the rectangular frame (8) is provided with an avoidance groove (14), the left side of the rectangular frame (8) is movably provided with a lower pressure plate (15), the right outer wall of the lower pressure plate (15) is fixedly installed with a limiting protrusion (17), the limiting protrusion (17) is inserted into the avoidance groove (14), the top of the lower pressure plate (15) is contacted with a push rod (18), the top of the push rod (18) is fixedly connected to the bottom of the reflection plate (3), the push rod (18) movably passes through the top of the fixing frame (4), the bottom of the lower pressure plate (15) is fixedly installed with a spring 2 (16), the bottom end of the spring 2 (16) is pressed on the back plate (1).

4. The reflector fixing structure according to claim 1, characterized in that: A heat dissipation hole (10) is provided on the top of the fixing frame (4), and a plurality of the heat dissipation holes (10) are provided and dispersed on the fixing frame (4).

5. The reflector fixing structure according to claim 1, characterized in that: The rectangular blocks (5) and rectangular seats (9) are provided in plurality and are dispersed on the reflector plate (3) and the fixing frame (4); the fixing frame (4) is welded to the back plate (1).

6. The reflector fixing structure according to claim 3, characterized in that: The length of the limiting protrusion (17) is greater than the length of the triangular block (12), and three springs (16) and limiting protrusions (17) are provided and are evenly spaced and distributed at the bottom of the lower pressing plate (15).

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