Liquid crystal module display screen backlight module and assembling method thereof

Abstract

The invention provides a liquid crystal module display screen backlight module and an assembling method thereof, and relates to the technical field of liquid crystal display, the backlight module comprises a backlight module body and a bottom plate, the bottom plate is slidably connected with the backlight module body, and a force unloading mechanism is arranged on the top surface of the bottom plate. The backlight module body slides in the bottom plate under the action of inertia, the limiting sliding blocks and the limiting grooves are used for limiting the position of the backlight module body, the limiting sliding blocks and the limiting grooves further have the effect of limiting the whole backlight module body not to incline, and in the process that the backlight module body slides towards the cavity, the backlight module body can slide in the cavity. A first matching inclined plane of a damping block can extrude second matching inclined planes arranged on force unloading blocks of the two force unloading mechanisms, the force unloading blocks can be extruded to drive T-shaped sliding blocks to slide towards fixing blocks in T-shaped sliding grooves, in the process that the force unloading blocks slide towards the fixing blocks, inertia force transmitted by the damping block is unloaded by strong springs, and the buffering and anti-falling effects are achieved; and therefore, the anti-falling device has a relatively high anti-falling effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of liquid crystal display, and more specifically, particularly relates to a liquid crystal module display screen backlight module and an assembling method thereof. Background Art

[0002] The liquid crystal display module is a passive display technology. It does not have the light-emitting function itself, so it needs to adjust the external light source to achieve the display effect. At present, this display technology mainly relies on point light sources (such as LED backlights) or line light sources (such as CCFL backlights) to provide backlight. However, most of the existing liquid crystal display backlight modules have the following problems:

[0003] 1. The drop resistance of existing LCD backlight modules mostly relies on rubber strips for buffering and no large buffer space is provided, so the drop resistance effect is mostly low and it is easy to break.

[0004] 2. Most of the existing LCD backlight modules directly mount the mounting frame of the backlight module on the outer shell frame, leaving insufficient heat dissipation space for the frame of the backlight module to dissipate heat, resulting in a poor heat dissipation effect.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a liquid crystal module display screen backlight module and an assembly method thereof are provided, in order to achieve a purpose with more practical value. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a liquid crystal module display screen backlight module and an assembly method thereof to solve the above problems.

[0007] A backlight module for a liquid crystal module display screen comprises a backlight module body and a bottom plate, wherein the bottom plate is slidably connected to the backlight module body, a force unloading mechanism is arranged on the top surface of the bottom plate, eight trapezoidal grooves are provided at the position where the force unloading mechanism is arranged on the bottom plate, a shock absorbing mechanism is fixedly connected to the side wall of the backlight module body, the number of the shock absorbing mechanisms is eight in total, the number of the force unloading mechanisms is sixteen in total, the force unloading mechanism comprises a fixed block, and the shock absorbing mechanism comprises a shock absorbing block.

[0008] Preferably, three limiting sliders are fixedly connected to both ends of the backlight module body.

[0009] Preferably, three limiting grooves are provided on the inner walls at both ends of the bottom plate, and the limiting grooves are slidably connected to the limiting sliding blocks.

[0010] Preferably, a cavity is provided between the backlight module body and the bottom plate, and a plurality of ventilation holes are provided at both ends of the bottom plate.

[0011] Preferably, the shock absorbing block is fixedly connected to the backlight module body, an empty slot is provided inside the shock absorbing block, a through slot is provided at the bottom of the shock absorbing block, the empty slot is connected to the through slot, and two first matching inclined surfaces are provided at the bottom of the shock absorbing block.

[0012] Preferably, a connecting rod is fixedly connected in the eight trapezoidal grooves, a herringbone rubber pallet is fixedly connected to the top of the connecting rod, the herringbone rubber pallet is slidably connected in the empty groove, and the connecting rod is slidably connected to the through groove.

[0013] Preferably, the bottom plate is provided with two T-shaped sliding grooves on both sides of the eight trapezoidal grooves.

[0014] Preferably, the fixed block is fixedly connected to the top of the base plate, the fixed block is fixedly connected to a strong spring, the end of the strong spring away from the fixed block is fixedly connected to a unloading block, the unloading block is provided with a second mating inclined surface, and the bottom of the unloading block is fixedly connected to two T-shaped sliders.

[0015] Preferably, the T-shaped sliding block is matched with the T-shaped sliding groove, the second matching inclined surface is matched with the first matching inclined surface, and the depth of the trapezoidal groove is less than the height of a section of the first matching inclined surface opened on the shock absorbing block.

[0016] Another technical problem to be solved by the present invention is to provide a method for assembling a backlight module of a liquid crystal module display screen, comprising the following steps:

[0017] S1: First, place the backlight module body on the bottom plate, and then make the limit slider and the limit groove engage with each other for preliminary limiting;

[0018] S2: Align each herringbone rubber pallet with the through slot, then press the backlight module body to make the herringbone rubber pallet pass through the through slot and enter the empty slot, so that the herringbone rubber pallet clamps the shock-absorbing block in the empty slot, and the backlight module body and the bottom plate are installed.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the present invention, a force unloading mechanism is provided, which includes a strong spring and a force unloading block. When the entire device collides, the backlight module body slides in the bottom plate under the action of inertia. The limiting slider and the limiting groove are used to limit the position of the backlight module body. The limiting slider and the limiting groove also have the effect of limiting the overall tilt of the backlight module body. In the process of the backlight module body sliding into the cavity, the first matching inclined surface of the shock-absorbing block will squeeze the second matching inclined surfaces set by the force unloading blocks of the two force unloading mechanisms, which will squeeze the force unloading block to drive the T-shaped slider to slide toward the fixed block in the T-shaped groove. In the process of the force unloading block sliding toward the fixed block, the inertial force transmitted by the shock-absorbing block is unloaded by the strong spring, which plays a role in buffering and resisting falling, so that the present application has a higher anti-fall effect.

[0021] In the present invention, by providing a cavity and opening vents at both ends of the bottom plate, the heat generated by the backlight module body can be dissipated through the cavity and the bottom plate. If the finished liquid crystal display screen is provided with a cooling fan, the cooling fan can directly blow the cooling air to the backlight module body, so that the present application has a higher heat dissipation effect.

[0022] In the present invention, by providing a limiting slider and a limiting groove, it is effectively ensured that the parallel relationship between the backlight module body and the base plate is strictly limited. Through this structure, the backlight module body can be kept in a stable parallel state on the base plate, thereby greatly improving the stability and reliability of the entire structure. The design of the limiting slider and the limiting groove is not only simple and easy, but also low in cost. At the same time, it can also achieve a good limiting effect, so that the contact between the backlight module body and the base plate is closer, further enhancing the overall stability and service life.

[0023] In the present invention, by providing a herringbone rubber cardboard, the setting of the herringbone rubber cardboard not only plays the effect of clamping and limiting the shock-absorbing block from being separated from the herringbone rubber cardboard, but also fixes the backlight module body and the bottom plate. Because the herringbone rubber cardboard itself is made of soft material, it can provide a certain buffer for the shock-absorbing block, reduce the inertial impact of the backlight module body in the direction away from the bottom plate, and play a shock-absorbing effect, so that the present application has a multi-directional buffering and anti-fall effect.

[0024] In the present invention, sixteen force unloading mechanisms are provided, and the sixteen force unloading mechanisms are independently arranged. When one of the force unloading mechanisms is damaged, fifteen force unloading mechanisms are still able to play a buffering and anti-falling effect, which will not excessively affect the overall force unloading and buffering effect of the device, and avoid one of the force unloading mechanisms being damaged and affecting the overall operation of the device, so that the present application has higher reliability, and multiple force unloading mechanisms jointly unload and buffer at different positions, so that the buffering effect of the present application is more uniform, and can better protect the backlight module body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention;

[0026] Figure 2 is a schematic diagram of the side view structure of the backlight module body of the present invention;

[0027] Figure 3 It is a schematic diagram of the side view structure of the bottom plate of the present invention;

[0028] Figure 4 The present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0029] Figure 5 The present invention Figure 3 A schematic diagram of the enlarged structure at B;

[0030] Figure 6 is a schematic cross-sectional structural diagram of the shock absorbing mechanism of the present invention;

[0031] Figure 7 It is a schematic diagram of the side view structure of the force unloading mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the overall cross-sectional structure of the device of the present invention;

[0033] Fig. 9 It is a schematic diagram of the positional relationship between the shock absorbing mechanism and the trapezoidal groove of the present invention.

[0034] In the figure, the correspondence between the component names and the figure numbers is: 1. backlight module body; 2. bottom plate; 3. shock absorbing mechanism; 4. force unloading mechanism; 101. limit slider; 102. cavity; 201. vent; 202. trapezoidal groove; 203. limit groove; 204. connecting rod; 205. herringbone rubber pallet; 206. T-shaped slide groove; 301. shock absorbing block; 302. empty groove; 303. through groove; 304. first matching inclined surface; 401. fixed block; 402. strong spring; 403. force unloading block; 404. second matching inclined surface; 405. T-shaped slider. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] Example:

[0037] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 The present invention provides a backlight module for a liquid crystal module display screen, comprising a backlight module body 1, comprising a bottom plate 2, the bottom plate 2 being slidably connected to the backlight module body 1, a force unloading mechanism 4 being arranged on the top surface of the bottom plate 2, eight trapezoidal grooves 202 being provided at the position where the force unloading mechanism 4 is arranged on the bottom plate 2, a shock absorbing mechanism 3 being fixedly connected to the side wall of the backlight module body 1, the number of the shock absorbing mechanisms 3 being eight in total, the number of the force unloading mechanisms 4 being sixteen in total, the force unloading mechanism 4 comprising a fixed block 401, and the shock absorbing mechanism 3 comprising a shock absorbing block 301.

[0038] Three limiting sliders 101 are fixedly connected to both ends of the backlight module body 1 .

[0039] Three limiting grooves 203 are respectively formed on the inner walls at both ends of the bottom plate 2 , and the limiting grooves 203 are slidably connected to the limiting sliders 101 .

[0040] A cavity 102 is disposed between the backlight module body 1 and the bottom plate 2 , and a plurality of ventilation holes 201 are formed at both ends of the bottom plate 2 .

[0041] The shock absorbing block 301 is fixedly connected to the backlight module body 1 , an empty slot 302 is provided inside the shock absorbing block 301 , a through slot 303 is provided at the bottom of the shock absorbing block 301 , the empty slot 302 is connected to the through slot 303 , and two first matching inclined surfaces 304 are provided at the bottom of the shock absorbing block 301 .

[0042] The eight trapezoidal grooves 202 are fixedly connected with connecting rods 204 , the tops of the connecting rods 204 are fixedly connected with herringbone rubber pallets 205 , the herringbone rubber pallet 205 is slidably connected in the empty grooves 302 , and the connecting rods 204 are slidably connected with the through grooves 303 .

[0043] The bottom plate 2 is provided with two T-shaped sliding grooves 206 on both sides of the eight trapezoidal grooves 202 .

[0044] The fixed block 401 is fixedly connected to the top of the base plate 2, and is fixedly connected to a strong spring 402. The end of the strong spring 402 away from the fixed block 401 is fixedly connected to a force unloading block 403, and the force unloading block 403 is provided with a second matching inclined surface 404. The bottom of the force unloading block 403 is fixedly connected to two T-shaped sliders 405.

[0045] The T-shaped sliding block 405 is matched with the T-shaped sliding groove 206 , the second matching inclined surface 404 is matched with the first matching inclined surface 304 , and the depth of the trapezoidal groove 202 is less than the height of the first matching inclined surface 304 of the shock absorbing block 301 .

[0046] Working principle:

[0047] In the first step, when the device as a whole collides, the backlight module body 1 slides in the bottom plate 2 under the action of inertia, and the limit slider 101 and the limit groove 203 are used to limit the position of the backlight module body 1. The limit slider 101 and the limit groove 203 also have the effect of limiting the backlight module body 1 from tilting as a whole. In the process of the backlight module body 1 sliding toward the cavity 102, the first matching inclined surface 304 of the shock absorbing block 301 will squeeze the second matching inclined surface 404 set by the unloading blocks 403 of the two unloading mechanisms 4, and will squeeze the unloading blocks 403 to drive the T-shaped slider 405 to slide toward the fixed block 401 in the T-shaped groove 206. In the process of the unloading block 403 sliding toward the fixed block 401, the inertial force transmitted by the shock absorbing block 301 is unloaded by the strong spring 402, which plays a role in buffering and resisting falling.

[0048] The second step is that the ingenious design of the herringbone rubber cardboard 205 not only has the basic function of clamping and limiting the shock-absorbing block 301 from being separated from the herringbone rubber cardboard 205, ensuring that the backlight module body 1 and the bottom plate 2 are firmly fixed, but also because the herringbone rubber cardboard 205 itself is made of soft rubber material, it also provides a certain buffering effect for the shock-absorbing block 301. When the backlight module body 1 is subjected to external force, it may produce an inertial impact in the direction away from the bottom plate 2, and the soft material of the herringbone rubber cardboard 205 can effectively absorb and disperse these impact forces, thereby greatly reducing the direct impact of the backlight module body 1 on the bottom plate 2. The herringbone rubber cardboard 205 not only ensures a firm connection between the backlight module body 1 and the bottom plate 2, avoiding failures that may be caused by looseness, but also reduces the vibration and noise that may be generated by the backlight module body 1 during movement by providing a buffer for the shock-absorbing block 301, thereby achieving a good shock-absorbing effect.

[0049] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A liquid crystal display screen backlight module, comprising a backlight module body (1), characterized in that: The invention comprises a bottom plate (2), the bottom plate (2) being slidably connected to a backlight module body (1), a force unloading mechanism (4) being arranged on the top surface of the bottom plate (2), eight trapezoidal grooves (202) being provided at the position where the force unloading mechanism (4) is arranged on the bottom plate (2), and a shock absorbing mechanism (3) being fixedly connected to the side wall of the backlight module body (1); Wherein, the unloading mechanism (4) comprises a fixing block (401); Wherein, the shock absorbing mechanism (3) comprises a shock absorbing block (301).

2. A liquid crystal display screen backlight module as claimed in claim 1, characterized in that: Three limiting sliders (101) are fixedly connected to both ends of the backlight module body (1).

3. A liquid crystal display screen backlight module as claimed in claim 2, characterized in that: Three limiting grooves (203) are provided on the inner walls at both ends of the bottom plate (2), and the limiting grooves (203) are slidably connected to the limiting sliding blocks (101).

4. The liquid crystal display backlight module according to claim 1, characterized in that: A cavity (102) is provided between the backlight module body (1) and the bottom plate (2), and ventilation holes (201) are provided at both ends of the bottom plate (2).

5. The liquid crystal display backlight module according to claim 1, characterized in that: The shock absorbing block (301) is fixedly connected to the backlight module body (1); an empty slot (302) is provided inside the shock absorbing block (301); a through slot (303) is provided at the bottom of the shock absorbing block (301); the empty slot (302) is connected to the through slot (303); and two first matching inclined surfaces (304) are provided at the bottom of the shock absorbing block (301).

6. A liquid crystal display screen backlight module as claimed in claim 5, characterized in that: A connecting rod (204) is fixedly connected in the eight trapezoidal grooves (202), a herringbone rubber pallet (205) is fixedly connected to the top of the connecting rod (204), the herringbone rubber pallet (205) is slidably connected in the empty groove (302), and the connecting rod (204) is slidably connected to the through groove (303).

7. The liquid crystal display backlight module according to claim 1, characterized in that: The bottom plate (2) is provided with two T-shaped sliding grooves (206) on both sides of the eight trapezoidal grooves (202).

8. A liquid crystal display screen backlight module as claimed in claim 7, characterized in that: The fixed block (401) is fixedly connected to the top of the bottom plate (2); the fixed block (401) is fixedly connected to a strong spring (402); one end of the strong spring (402) away from the fixed block (401) is fixedly connected to a force unloading block (403); the force unloading block (403) is provided with a second matching inclined surface (404); and the bottom of the force unloading block (403) is fixedly connected to two T-shaped sliding blocks (405).

9. A liquid crystal display screen backlight module as claimed in claim 8, characterized in that: The T-shaped sliding block (405) is matched with the T-shaped sliding groove (206), and the second matching inclined surface (404) is matched with the first matching inclined surface (304).

10. The method for assembling a backlight module of a liquid crystal display screen according to claim 9, characterized in that: The following steps are involved: S1: firstly, the backlight module body (1) is placed on the bottom plate (2), and then the limiting slider (101) and the limiting groove (203) are locked with each other to perform preliminary limiting; S2: Align each herringbone rubber card plate (205) with the through slot (303), then press the backlight module body (1) to allow the herringbone rubber card plate (205) to pass through the through slot (303) and enter the empty slot (302), so that the herringbone rubber card plate (205) can clamp the shock absorbing block (301) in the empty slot (302), and the backlight module body (1) and the bottom plate (2) are installed.

Images