MiniLED backlight source

Abstract

The utility model discloses a mini LED (light-emitting diode) backlight source, and particularly relates to the technical field of LED backlight sources, the mini LED backlight source comprises a protective frame, a placing groove is arranged in the protective frame, a mini LED backlight source body is arranged in the placing groove, and a radiating sleeve is fixedly arranged on one side of the outer surface of the protective frame. In actual use and actual work, the rack moves along the second sliding rod so as to extrude the second spring, the incomplete gear can be driven to rotate along with extrusion of the second spring by the rack, the incomplete gear can drive the limiting plate to rotate, and the mini LED backlight source body can be placed in the placing groove. Under the action of a second spring, a rack can be reset to drive a limiting plate to reset so as to prevent the mini LED backlight source body from falling off, when a stress plate is impacted or extruded, a connecting rod can push a moving block to move along a first sliding rod, and then the moving block can extrude a first spring so as to reduce the impact or extrusion force; therefore, collision and extrusion can be well prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of LED backlight source, more specifically, the utility model relates to a miniLED backlight source Background Art

[0002] LED backlight is mainly composed of light source, light guide plate, optical film, plastic frame, etc. The backlight has the characteristics of high brightness, long life, uniform light emission, etc. The service life of LED backlight is longer than EL, and it uses DC voltage. It is usually used in small monochrome displays, such as telephones, remote controls, microwave ovens, air conditioners, instruments, stereo audio equipment, etc.

[0003] After searching, for example, the utility model with application number 202222493001.7 discloses an LED light board and a miniLED backlight source, including a PCB board and a plurality of LED lamp beads arranged in a matrix on the front side of the PCB board, among which the plurality of LED lamp beads are respectively provided with a square reflective cup around the periphery of the LED lamp beads at the even positions of the odd rows and the periphery of the LED lamp beads at the odd positions of the even rows. During use, the backlight source is susceptible to collision or extrusion, thereby causing damage to the LED backlight source, and the utility model is not convenient for better anti-collision and anti-extrusion. Therefore, in order to solve the above defects, the inventor proposes a miniLED backlight source. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a miniLED backlight source. The technical problem to be solved by the utility model is that it is not convenient to better prevent collision and extrusion.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a miniLED backlight source, comprising a protective frame, a placement groove is provided inside the protective frame, a miniLED backlight source body is provided inside the placement groove, a heat dissipation sleeve is fixedly installed on the rear side of the outer surface of the protective frame, movable grooves are provided on both sides of the outer surface of the protective frame, first sliding bars are fixedly installed inside the two movable grooves, two movable blocks are movably connected to the outer surfaces of the two first sliding bars, first springs are fixedly installed on both sides inside the two movable grooves, and four first springs are respectively fixedly connected to four movable blocks, a movable frame is fixedly installed on one side of the four movable blocks, a connecting rod is movably installed inside the four movable frames, and two force-bearing plates are movably installed on the side of the four connecting rods away from the movable frame, and the miniLED backlight source body includes a diffusion film layer.

[0006] In a preferred embodiment, driving grooves are provided on both sides of the inner wall of the protective frame, and the driving grooves are provided on the rear side of the movable groove, second sliding bars are fixedly installed inside the two driving grooves, and the outer surfaces of the two second sliding bars are movably connected with racks, second springs are fixedly installed on one side of the interior of the two driving grooves, and the two second springs are respectively fixedly connected to the two racks, incomplete gears are movably installed inside the two driving grooves, and limiting plates are fixedly installed on the side of the two incomplete gears that are not processed with gear teeth.

[0007] In a preferred embodiment, a pull rod is fixedly mounted on the front side of the two racks, and openings for the pull rod to move up and down are provided on both sides of the front end of the protection frame.

[0008] In a preferred embodiment, gear teeth are processed on one side of the two incomplete gears away from the limiting plate, and the incomplete gears are meshed with the rack through the gear teeth.

[0009] In a preferred embodiment, a light-emitting layer is fixedly mounted on one side of the diffusion film layer, and a reflective film layer is fixedly mounted on one side of the light-emitting layer.

[0010] In a preferred embodiment, a support frame is fixedly installed inside the heat dissipation sleeve, a motor is fixedly installed on one side of the support frame, and fan blades are movably installed on the other side of the support frame, the output end of the motor is fixedly connected to the fan blades, and a heat dissipation plate is fixedly installed inside the placement groove.

[0011] In a preferred embodiment, a filter plate is provided on one side of the outer surface of the heat dissipation sleeve.

[0012] Technical effects and advantages of the utility model:

[0013] When the utility model is actually used, by setting a protective frame, in actual work, the rack moves along the second sliding rod to squeeze the second spring, and as the rack squeezes the second spring, the incomplete gear can be driven to rotate, and the incomplete gear can drive the limit plate to rotate, so that the miniLED backlight source body can be placed in the placement groove, and the rack is loosened. Under the action of the second spring, the rack can be reset. During the resetting process, the incomplete gear can be driven to rotate again to drive the limit plate to reset, and the miniLED backlight source body is squeezed and fixed to prevent the miniLED backlight source body from falling. When the force plate is hit or squeezed, the connecting rod will push the moving block to move along the first sliding rod, and then the moving block can squeeze the first spring to reduce the impact or squeezing force, thereby being able to better prevent collision and squeezing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a rear view structural schematic diagram of the protective frame of the utility model.

[0016] Figure 3 It is a cross-sectional schematic diagram of the protection frame of the utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the miniLED backlight source body of the utility model.

[0018] Figure 5 It is a cross-sectional schematic diagram of the heat dissipation sleeve of the utility model.

[0019] The accompanying drawings are marked as follows: 1. miniLED backlight source body; 2. protective frame; 3. placement slot; 4. heat dissipation sleeve; 201. movable slot; 202. first slide bar; 203. first spring; 204. moving block; 205. movable frame; 206. connecting rod; 207. force plate; 208. driving slot; 209. second slide bar; 210. rack; 211. second spring; 212. incomplete gear; 213. limit plate; 101. diffusion film layer; 102. light-emitting layer; 103. reflective film layer; 401. heat dissipation plate; 402. support frame; 403. motor; 404. fan blades. DETAILED DESCRIPTION

[0020] The utility model provides a miniLED backlight source, such as Figure 1 As shown, a miniLED backlight source includes a protective frame 2, a placement groove 3 is provided inside the protective frame 2, and a miniLED backlight source body 1 is provided inside the placement groove 3, so that the miniLED backlight source body 1 can be placed in the placement groove 3.

[0021] A heat dissipation sleeve 4 is fixedly mounted on one side of the outer surface of the protection frame 2 , and movable grooves 201 are provided on both sides of the outer surface of the protection frame 2 . First sliding bars 202 are fixedly mounted inside the two movable grooves 201 .

[0022] like Figure 2 As shown, the outer surfaces of the two first sliding bars 202 are movably connected to two moving blocks 204 , and the moving blocks 204 can move along the first sliding bars 202 .

[0023] First springs 203 are fixedly installed on both sides of the two moving grooves 201 , and the four first springs 203 are fixedly connected to the four moving blocks 204 , respectively. When the moving blocks 204 move, they can compress the first springs 203 .

[0024] A movable frame 205 is fixedly installed on one side of the four moving blocks 204, and a connecting rod 206 is movably installed inside the four moving frames 205. The connecting rod 206 can rotate inside the movable frame 205, and two force plates 207 are movably installed on the side of the four connecting rods 206 away from the movable frame 205. When the force plates 207 are collided or squeezed, the connecting rod 206 can push the moving block 204 to move along the first sliding bar 202. When the moving block 204 moves, it will squeeze the first spring 203, thereby reducing the force of the collision.

[0025] like Figure 3 As shown, driving grooves 208 are provided on both sides of the protective frame 2, and second slide bars 209 are fixedly installed inside the two driving grooves 208. The outer surfaces of the two second slide bars 209 are movably connected with racks 210, and the racks 210 can move along the second slide bars 209.

[0026] A second spring 211 is fixedly installed on one side of the inner part of the two driving grooves 208 , and the two second springs 211 are fixedly connected to the two racks 210 respectively. When the racks 210 move, they will squeeze the second springs 211 .

[0027] An incomplete gear 212 is movably mounted inside the two driving slots 208 , and a limit plate 213 is fixedly mounted on one side of the two incomplete gears 212 . When the incomplete gear 212 rotates, the limit plate 213 can be driven to rotate.

[0028] It should be noted that the two incomplete gears 212 are provided with teeth on the side away from the limit plate 213, and the side of the incomplete gear 212 provided with teeth is meshed with the rack 210. When the rack 210 moves, it can drive the incomplete gear 212 to rotate. A pull rod is fixedly installed on one side of the two racks 210 so that the user can drive the rack 210 to move by pulling the pull rod.

[0029] like Figure 4 As shown, the miniLED backlight source body 1 includes a diffusion film layer 101 , a light-emitting layer 102 is fixedly mounted on one side of the diffusion film layer 101 , and a reflective film layer 103 is fixedly mounted on one side of the light-emitting layer 102 .

[0030] like Figure 5 As shown, a support frame 402 is fixedly installed inside the heat dissipation sleeve 4, a motor 403 is fixedly installed on one side of the support frame 402, and a fan blade 404 is movably installed on the other side of the support frame 402, the output end of the motor 403 is fixedly connected to the fan blade 404, the motor 403 can drive the fan blade 404 to rotate, and a heat sink 401 is fixedly installed inside the protective frame 2, and the rotating fan blade 404 cooperates with the heat sink 401 to dissipate heat for the miniLED backlight source body 1.

[0031] Working principle of this utility model:

[0032] The user pulls the pull rod to drive the rack 210 to move, so that the rack 210 squeezes the second spring 211. During the movement of the rack 210, the incomplete gear 212 can be driven to rotate, and the incomplete gear 212 can drive the limit plate 213 to rotate, and then the miniLED backlight source body 1 can be placed in the placement slot 3. The pull rod is released, and under the action of the second spring 211, the rack 210 can be pushed to reset. During the reset process of the rack 210, the incomplete gear 212 can be driven to rotate again, so that the limit plate 213 is used for resetting, and the miniLED backlight source body 1 is squeezed and fixed to prevent the miniLED backlight source body 1 from falling off. During the use of the miniLED backlight source body 1, when the force plate 207 is collided or squeezed, the connecting rod 206 can push the two moving blocks 204 to move along the first sliding rod 202, and then the moving blocks 204 will squeeze the first spring 203. Under the action of the first spring 203, the force of collision or squeezing can be reduced, so as to better protect the miniLED backlight source body 1.

[0033] Finally, a few points should be explained: the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A miniLED backlight source, characterized in that: include: A protective frame (2) is provided with a placement groove (3) inside, a miniLED backlight source body (1) is provided inside the placement groove (3), a heat dissipation sleeve (4) is fixedly installed on the rear side of the outer surface of the protective frame (2), movable grooves (201) are provided on both sides of the outer surface of the protective frame (2), first sliding bars (202) are fixedly installed inside the two movable grooves (201), two movable blocks (204) are movably connected to the outer surfaces of the two first sliding bars (202), first springs (203) are fixedly installed on both sides of the two movable grooves (201), and four first springs (203) are respectively fixedly connected to four movable blocks (204), one side of the four movable blocks (204) is fixedly installed with a movable frame (205), the inside of the four movable frames (205) is movably installed with a connecting rod (206), and two force-bearing plates (207) are movably installed on the sides of the four connecting rods (206) away from the movable frame (205), and the miniLED backlight source body (1) comprises a diffusion film layer (101).

2. A miniLED backlight source according to claim 1, characterized in that: Both sides of the inner wall of the protection frame (2) are provided with driving grooves (208), and the driving grooves (208) are arranged at the rear side of the movable groove (201); the interior of the two driving grooves (208) is fixedly installed with a second slide bar (209); the outer surfaces of the two second slide bars (209) are movably connected with a rack (210); the inner side of the two driving grooves (208) is fixedly installed with a second spring (211), and the two second springs (211) are respectively fixedly connected to the two racks (210); the interior of the two driving grooves (208) is movably installed with an incomplete gear (212); and the side of the two incomplete gears (212) that are not processed with gear teeth is fixedly installed with a limit plate (213).

3. A miniLED backlight source according to claim 2, characterized in that: A pull rod is fixedly mounted on the front side of the two racks (210), and openings are provided on both sides of the front end of the protection frame (2) for the pull rod to move up and down.

4. The miniLED backlight source according to claim 2, characterized in that: Gear teeth are machined on one side of the two incomplete gears (212) away from the limiting plate (213), and the incomplete gears (212) mesh with the rack (210) via the gear teeth.

5. The miniLED backlight source according to claim 1, characterized in that: A light-emitting layer (102) is fixedly mounted on one side of the diffusion film layer (101), and a reflective film layer (103) is fixedly mounted on one side of the light-emitting layer (102).

6. The miniLED backlight source according to claim 1, characterized in that: A support frame (402) is fixedly mounted inside the heat dissipation sleeve (4), a motor (403) is fixedly mounted on one side of the support frame (402), and a fan blade (404) is movably mounted on the other side of the support frame (402), an output end of the motor (403) is fixedly connected to the fan blade (404), and a heat dissipation plate (401) is fixedly mounted inside the placement groove (3).

7. The miniLED backlight source according to claim 1, characterized in that: A filter plate is provided on one side of the outer surface of the heat dissipation sleeve (4).

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