Anti-vibration backlight module

Abstract

The utility model discloses an anti-vibration backlight module, and relates to the technical field of backlight modules. In order to solve the problems that when a backlight module in the prior art vibrates or moves, due to friction and collision between parts in the backlight module, the performance of the backlight module is often reduced, and the display effect is poor and even the backlight module is damaged. An anti-vibration backlight module comprises a backlight module body, a heat dissipation plate and a vibration absorption device, the lower surface of the backlight module body is fixedly connected with the heat dissipation plate through bolts, the two sides of the heat dissipation plate are fixedly installed on the vibration absorption device through bolts, and the vibration absorption device comprises an elastic base and a damping piece. The elastic seat is fixedly connected with the mounting base through the damping piece; through the arrangement of the vibration absorption device, when the backlight module is subjected to external vibration, vibration energy can be effectively absorbed, friction and collision between parts in the module are reduced, and therefore the backlight module is protected, the service life of equipment is prolonged, and the stability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight modules, in particular to a vibration-resistant backlight module. Background Art

[0002] In the existing display devices, the backlight module is a key component, which is responsible for providing the backlight required by the display panel. Regarding the backlight module, the Chinese patent with the publication number: CN203533411U discloses a backlight module shading component and a backlight module having the backlight module shading component, wherein the backlight module shading component includes a shading film for shading the backlight module body, a first protective film for isolating the backlight module body from the outside, and a second protective film for buffering and dispersing external forces; the shading film is pasted on the backlight module body, and the shading film is frame-shaped, and a receiving hole for accommodating the second protective film is opened in the middle; the first protective film can be detachably attached to the shading film; the second protective film is fixed on the first protective film and accommodated in the receiving hole; the patent adds one or more layers of the second protective film on the first protective film, so that during the production and transportation process, the second protective film is used to buffer and disperse the external force, thereby protecting the backlight film material.

[0003] However, although the above patents can protect the backlight film materials, the backlight module in the prior art often suffers from performance degradation, poor display effects or even damage due to friction and collision between components inside the backlight module when the device vibrates or moves. Utility Model Content

[0004] The purpose of the utility model is to provide a vibration-resistant backlight module. By setting a vibration absorption device, the backlight module can effectively absorb vibration energy when subjected to external vibration, reduce friction and collision between components inside the module, thereby protecting the backlight module, improving the service life and stability of the equipment, and solving the problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A vibration-resistant backlight module comprises a backlight module body, a heat sink and a vibration absorbing device, wherein the lower surface of the backlight module body is fixedly connected to the heat sink by bolts, and the two sides of the heat sink are fixedly mounted on the vibration absorbing device by bolts, and buffer corner pads are bonded around the backlight module body. The vibration absorbing device comprises an elastic seat and a damping member, and the elastic seat is fixedly connected to a mounting base by the damping member.

[0007] Preferably, the surface of the heat sink is provided with evenly distributed heat sink blocks, heat sink grooves are formed between at least one heat sink block, and the upper surface of the heat sink is in contact with the backlight module body.

[0008] Preferably, the damping member comprises a fixed shaft and a movable shaft, the upper surface of the fixed shaft is meshed with a damping bolt, the damping bolt mounts the backlight module body on the surface of the fixed shaft, and the movable shaft performs piston motion in the fixed shaft.

[0009] Preferably, two sides of the fixed shaft are respectively in contact with the backlight module body and the elastic seat, and one side of the movable shaft passes through the elastic seat and is fixedly connected to the mounting base.

[0010] Preferably, the movable shaft sleeve is provided with a damping spring, and both ends of the damping spring are fixedly connected to the mounting base and the elastic seat.

[0011] Preferably, the mounting base is in an "L" shape, and a side mounting hole groove is provided on one side of the mounting base.

[0012] Preferably, the surface of the elastic seat is provided with a limiting groove matched with the heat sink, a vibration-damping gasket is installed in the limiting groove, and installation grooves matched with the fixed shaft are provided on both sides of the elastic seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The heat dissipation grooves formed between the heat dissipation blocks can effectively increase the heat dissipation area and improve the heat dissipation efficiency, thereby preventing the backlight module from being damaged due to overheating during operation. The anti-slip patterns arranged on the heat dissipation blocks can improve the stability of the overall structure to a certain extent. The setting of the vibration absorption device enables the backlight module to effectively absorb vibration energy when subjected to external vibration, reduce friction and collision between components inside the module, thereby protecting the backlight module and improving the service life and stability of the equipment. The buffer corner pads can reduce the impact of external vibration on the backlight module body, improve the seismic performance of the module, and have good buffering and vibration resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the axial side of the anti-vibration backlight module of the utility model;

[0016] Figure 2 This is a schematic diagram of the axial side decomposition of the anti-vibration backlight module of the utility model;

[0017] Figure 3 This is a front view exploded schematic diagram of the heat sink and the elastic seat of the utility model;

[0018] Figure 4 It is a partial front view cross-sectional schematic diagram of the anti-vibration backlight module of the utility model.

[0019] In the figure: 1. backlight module body; 2. heat sink; 21. heat sink block; 22. heat sink; 3. vibration absorbing device; 31. elastic seat; 311. limit slot; 312. vibration damping gasket; 313. mounting slot; 32. damping element; 321. fixed shaft; 322. movable shaft; 323. damping bolt; 324. vibration damping spring; 33. mounting base; 331. side mounting hole slot; 4. buffer corner pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to solve the problem in the prior art that when the backlight module vibrates or moves, the friction and collision between the components inside the backlight module often cause the backlight module performance to deteriorate, resulting in poor display effect or even damage, please refer to Figure 1-4 , this embodiment provides the following technical solutions:

[0022] A vibration-resistant backlight module comprises a backlight module body 1, a heat sink 2 and a vibration absorbing device 3. The lower surface of the backlight module body 1 is fixedly connected to the heat sink 2 by bolts. The surface of the heat sink 2 is provided with evenly distributed heat sink blocks 21. Heat sink grooves 22 are formed between at least one heat sink block 21. Anti-slip patterns are provided on the heat sink blocks 21 arranged around the surface of the heat sink 2. The upper surface of the heat sink 2 is fitted with the backlight module body 1. Both sides of the heat sink 2 are fixedly installed on the vibration absorbing device 3 by bolts. Buffer corner pads 4 are bonded around the backlight module body 1. The buffer corner pads 4 are made of soft materials, such as silica gel or sponge. The vibration absorbing device 3 comprises an elastic seat 31 and a damping member 32. The elastic seat 31 is fixedly connected to a mounting base 33 through the damping member 32.

[0023] In this embodiment, the heat dissipation grooves 22 formed between the heat dissipation blocks 21 can effectively increase the heat dissipation area and improve the heat dissipation efficiency, thereby preventing the backlight module from being damaged due to overheating during operation. The anti-slip grooves arranged on the heat dissipation blocks 21 can improve the stability of the overall structure to a certain extent. The setting of the vibration absorption device 3 enables the backlight module 1 to effectively absorb vibration energy when subjected to external vibration, reduce friction and collision between components inside the module, thereby protecting the backlight module 1 and improving the service life and stability of the equipment. The buffer corner pads 4 can reduce the impact of external vibration on the backlight module body 1, improve the seismic performance of the module, and have good buffering and vibration resistance.

[0024] In this embodiment, the damping member 32 includes a fixed shaft 321 and a movable shaft 322. The upper surface of the fixed shaft 321 is meshed with the damping bolt 323. The damping bolt 323 installs the backlight module body 1 on the surface of the fixed shaft 321. The movable shaft 322 performs piston motion in the fixed shaft 321. The two sides of the fixed shaft 321 are respectively abutted against the backlight module body 1 and the elastic seat 31. One side of the movable shaft 322 passes through the elastic seat 31 and is fixedly connected to the mounting base 33. The movable shaft 322 is covered with a damping spring 324. The two ends of the damping spring 324 are fixedly connected to the mounting base 33 and the elastic seat 31.

[0025] In this embodiment, through the combination of the damping bolt 323, the movable shaft 322 and the shock-absorbing spring 324, the damping member 32 can effectively absorb and disperse external vibration energy, thereby reducing the impact of vibration on the backlight module and improving the stability of the backlight module. Since the interference of vibration is reduced, the backlight module can provide a more stable and clearer display effect, improve the user experience, and enable the backlight module body 1 to maintain stable performance in various complex working environments, especially in occasions with large vibrations.

[0026] In this embodiment, the mounting base 33 is "L"-shaped, and a side mounting hole groove 331 is provided on one side of the mounting base 33. A limiting groove 311 adapted to the heat sink 2 is provided on the surface of the elastic seat 31. A vibration-damping gasket 312 is installed in the limiting groove 311. Mounting grooves 313 adapted to the fixed shaft 321 are provided on both sides of the elastic seat 31.

[0027] In this embodiment, the backlight module body 1 is fixed and installed by installing the base 33, thereby ensuring the stability of the backlight module body 1 during use. When external vibration acts on the backlight module, the elastic seat 31 and the damping member 32 will work together to effectively resist external vibration, protect the backlight light source from vibration, and improve the stability and service life of the display device.

[0028] Working principle: By fixing the mounting base 33 on the display screen, during use, the heat sink 2 continuously dissipates heat for the backlight module body 1. When subjected to vibration impact or the display screen falls, the vibration-damping gasket 312 on the inner side of the elastic seat 31 absorbs part of the vibration impact. When the vibration impact is large, the fixed shaft 321 and the movable shaft 322 move as pistons, and the vibration-damping spring 324 deforms to absorb the vibration impact, thereby protecting the backlight module body 1 and achieving an anti-vibration effect.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration-resistant backlight module, comprising a backlight module body (1), a heat sink (2) and a vibration absorbing device (3), characterized in that: The lower surface of the backlight module body (1) is fixedly connected to the heat sink (2) by bolts, and the two sides of the heat sink (2) are fixedly mounted on the vibration absorption device (3) by bolts. Buffering corner pads (4) are bonded around the backlight module body (1). The vibration absorption device (3) includes an elastic seat (31) and a damping member (32), and the elastic seat (31) is fixedly connected to the mounting base (33) by the damping member (32).

2. The vibration-resistant backlight module according to claim 1, characterized in that: The surface of the heat dissipation plate (2) is provided with evenly distributed heat dissipation blocks (21), heat dissipation grooves (22) are formed between at least one heat dissipation block (21), and the upper surface of the heat dissipation plate (2) is in contact with the backlight module body (1).

3. The vibration-resistant backlight module according to claim 1, characterized in that: The damping member (32) comprises a fixed shaft (321) and a movable shaft (322); the upper surface of the fixed shaft (321) is meshed with a damping bolt (323); the damping bolt (323) mounts the backlight module body (1) on the surface of the fixed shaft (321); and the movable shaft (322) performs piston motion in the fixed shaft (321).

4. The vibration-resistant backlight module according to claim 3, characterized in that: The two sides of the fixed shaft (321) are respectively in contact with the backlight module body (1) and the elastic seat (31), and one side of the movable shaft (322) penetrates the elastic seat (31) and is fixedly connected to the mounting base (33).

5. The vibration-resistant backlight module according to claim 4, characterized in that: The movable shaft (322) is covered with a damping spring (324), and two ends of the damping spring (324) are fixedly connected to the mounting base (33) and the elastic seat (31).

6. The vibration-resistant backlight module according to claim 1, characterized in that: The mounting base (33) is in an "L" shape, and a side mounting hole groove (331) is provided on one side of the mounting base (33).

7. The vibration-resistant backlight module according to claim 3, characterized in that: The surface of the elastic seat (31) is provided with a limiting groove (311) adapted to the heat sink (2), a vibration-damping gasket (312) is installed in the limiting groove (311), and installation grooves (313) adapted to the fixed shaft (321) are provided on both sides of the elastic seat (31).

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