Detection device for LED backlight source production

Abstract

The utility model belongs to the technical field of LED backlight sources, and particularly relates to a detection device for LED backlight source production, which comprises a main body plate, a left mounting frame is fixedly mounted on the left side of the top of the main body plate, a right mounting frame is fixedly mounted on the right side of the top of the main body plate, and a U-shaped plate is slidably mounted in the left mounting frame. A movable column is slidably mounted in the right mounting frame, and the right side of the U-shaped plate is fixedly connected with the left side of the movable column. The threaded rod is driven by the servo motor to rotate, the movable column and the U-shaped plate can be driven to move upwards or downwards, so that the LED backlight source can be moved to different heights, the anti-falling performance of the LED backlight source can be conveniently detected from different heights, and the anti-falling performance of a product in various use scenes can be comprehensively evaluated by simulating falling at different heights; falling tests at different heights can cover various impact conditions possibly encountered by the product in actual use, and it is ensured that the product can be excellently expressed in various environments.

Description

Technical Field

[0001] This utility model belongs to the field of LED backlight technology, specifically relating to a testing device for LED backlight production. Background Technology

[0002] LED backlighting refers to the use of light-emitting diodes (LEDs) as the backlight for an LCD screen. Compared to traditional CCFL backlighting, LED backlighting offers advantages such as low power consumption, low heat generation, high brightness, and long lifespan. The working principle of LED backlighting is to convert a point light source into a surface light source, providing the external light source required for LCD display. The backlight module contains multiple layers of film materials, which work together to convert the point light source into a surface light source, ensuring uniform light emission from the LCD screen.

[0003] After the LED backlight is manufactured, it needs to undergo various tests. Among them, the drop resistance test is a crucial one. Good drop resistance makes the LED backlight more durable. However, it is not convenient to test the drop resistance of the LED backlight from different heights, which cannot guarantee the accuracy of the test results. The problem that this device addresses is how to facilitate the drop resistance test of LED backlights from different heights. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a testing device for LED backlight production, which solves the problem of how to easily test the drop resistance of LED backlights from different heights.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a testing device for LED backlight production, comprising a main plate, a left mounting bracket fixedly installed on the left side of the top of the main plate, a right mounting bracket fixedly installed on the right side of the top of the main plate, a U-shaped plate slidably installed inside the left mounting bracket, a movable column slidably installed inside the right mounting bracket, and the right side of the U-shaped plate fixedly connected to the left side of the movable column, a servo motor fixedly installed on the top of the right mounting bracket, a threaded rod fixedly installed on the servo motor via a rotating shaft at its output end, the bottom end of the threaded rod rotatably connected to the top of the main plate, and the surface of the threaded rod threadedly connected to the inside of the movable column, a movable rod movably installed on the left side of the U-shaped plate, a movable plate fixedly installed on the right end of the movable rod, a telescopic spring fixedly installed on the left side of the movable plate, and the left end of the telescopic spring fixedly connected to the left side inside the U-shaped plate, and an arc-shaped plate fixedly installed on the left end of the movable rod.

[0006] Preferably, protective plates are fixedly installed on both the front and rear sides of the top of the main body plate, and the protective plates are U-shaped, with the two sides of the protective plates being fixedly connected to the left mounting bracket and the right mounting bracket, respectively.

[0007] Preferably, a scale rod is provided at the front of the U-shaped plate, and the bottom end of the scale rod is threadedly connected to the top of the main body plate, and a movable knob is fixedly installed at the top of the scale rod.

[0008] Preferably, a motor controller is fixedly installed on the left side of the front of the protective plate, and a mounting plate is fixedly installed on the right side of the front of the protective plate, and the motor controller is electrically connected to the servo motor.

[0009] Preferably, control buttons and switch buttons are fixedly mounted on the surface of the mounting plate, and both control buttons and switch buttons are electrically connected to the motor controller.

[0010] Preferably, a rubber pad is fixedly installed on the bottom of the main body plate, and multiple rubber pads are provided, and the multiple rubber pads are arranged in a matrix on the bottom of the main body plate.

[0011] Preferably, a fixed handle is fixedly installed on both the left and right sides of the protective plate, and a protective cover is fixedly installed on the surface of the fixed handle.

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

[0013] By using a servo motor to drive the threaded rod to rotate, the movable column and U-shaped plate can be moved up or down to move the LED backlight to different heights. This allows for testing the LED backlight's drop resistance from different heights. By simulating drops from different heights, the drop resistance of the product can be comprehensively evaluated in various usage scenarios. Drop tests at different heights can cover various impact situations that the product may encounter in actual use, ensuring that the product performs well in various environments. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a first three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a second three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a third perspective view of the present invention;

[0018] Figure 4 This is an internal sectional view of the U-shaped plate of this utility model.

[0019] In the diagram: 1. Main body plate; 2. Protective plate; 3. Left mounting bracket; 4. Movable knob; 5. Servo motor; 6. Right mounting bracket; 7. Fixed handle; 8. Mounting plate; 9. Motor controller; 10. Rubber pad; 11. Control button; 12. Switch button; 13. Protective cover; 14. Movable column; 15. U-shaped plate; 16. Scale rod; 17. Threaded rod; 18. Arc plate; 19. Movable rod; 20. Telescopic spring; 21. Moving plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides the following technical solution: a testing device for LED backlight production, comprising a main body plate 1, a left mounting bracket 3 fixedly installed on the left side of the top of the main body plate 1, a right mounting bracket 6 fixedly installed on the right side of the top of the main body plate 1, a U-shaped plate 15 slidably installed inside the left mounting bracket 3, a movable column 14 slidably installed inside the right mounting bracket 6, and the right side of the U-shaped plate 15 is fixedly connected to the left side of the movable column 14, a servo motor 5 fixedly installed on the top of the right mounting bracket 6, a threaded rod 17 fixedly installed on the servo motor 5 through a rotating shaft at the output end, the bottom end of the threaded rod 17 being rotatably connected to the top of the main body plate 1, and the surface of the threaded rod 17 being threadedly connected to the inside of the movable column 14, a movable rod 19 movably installed on the left side of the U-shaped plate 15, a movable plate 21 fixedly installed on the right end of the movable rod 19, a telescopic spring 20 fixedly installed on the left side of the movable plate 21, and the left end of the telescopic spring 20 being fixedly connected to the left side inside the U-shaped plate 15, and an arc-shaped plate 18 fixedly installed on the left end of the movable rod 19.

[0022] When using the device, firstly, the movable rod 19 can be moved to the left by pulling the arc plate 18. Then, the LED backlight is placed between the movable column 14 and the moving plate 21. Then, the arc plate 18 is slowly released. Under the action of the telescopic spring 20, the movable rod 19 and the moving plate 21 will spring back to the right to reset, thereby fixing the LED backlight between the movable column 14 and the moving plate 21. Since the threaded rod 17 is internally threadedly connected to the movable column 14, and the bottom end of the threaded rod 17 is rotatably connected to the top of the main body plate 1, and the movable column 14 is internally slidably connected to the right mounting bracket 6, and the U-shaped plate 15 is internally movablely connected to the left mounting bracket 3, the servo motor 5 is started through the rotating shaft at the output end. The threaded rod 17 can be rotated, which in turn moves the movable column 14 and the U-shaped plate 15 up or down. The distance the movable column 14 and the U-shaped plate 15 move depends on the number of rotations of the threaded rod 17, while the direction of movement of the movable column 14 and the U-shaped plate 15 depends on the direction of rotation of the threaded rod 17. This allows the LED backlight to be moved to different heights. Then, by pulling the arc plate 18 and the movable rod 19 to the left again, the LED backlight can be dropped downwards. This facilitates testing the drop resistance of the LED backlight from different heights. By simulating drops from different heights, the drop resistance of the product can be comprehensively evaluated in various usage scenarios.Drop tests at different heights cover various impact scenarios the product may encounter in actual use, ensuring excellent performance in various environments. The mounting plate 8 facilitates the installation of control buttons 11 and switch buttons 12. The motor controller 9 is electrically connected to the servo motor 5, and both control buttons 11 and switch buttons 12 are electrically connected to the motor controller 9. Therefore, switch button 12 allows users to easily control the start and stop of the servo motor 5, while control button 11 allows users to easily change the rotation direction of the servo motor 5, improving the device's operability. The protective plate 2, being U-shaped and fixedly connected to the left mounting bracket 3 and right mounting bracket 6 on both sides, prevents the LED backlight from flying far away after a drop. The device is designed to facilitate locating fallen LED backlights. The scale rod 16, with its bottom threaded connection to the top of the main body plate 1, allows for easy observation of the LED backlight's height. The scale rod 16 can be easily disassembled or replaced by rotating the movable knob 4. The rubber pads 10, arranged in a matrix on the top of the main body plate 1, increase friction between the top of the main body plate 1 and the tabletop, preventing the device from slipping during testing. The fixed handle 7 facilitates user handling, and the protective cover 13 makes the surface of the fixed handle 7 softer and more comfortable to grip. All electrical components in this device are powered by an external power source.

[0023] In one aspect of this embodiment, the protective plate 2 is U-shaped and its two sides are fixedly connected to the left mounting bracket 3 and the right mounting bracket 6, respectively. Therefore, the protective plate 2 can prevent the fallen LED backlight from flying far away and facilitate the retrieval of the fallen LED backlight. As for the scale rod 16, since the bottom end of the scale rod 16 is threadedly connected to the top of the main body plate 1, the height of the LED backlight can be easily observed through the scale rod 16. The scale rod 16 can be easily disassembled or replaced by rotating the movable knob 4.

[0024] In one aspect of this embodiment, the mounting plate 8 facilitates the installation of the control button 11 and the switch button 12. As for the motor controller 9, since the motor controller 9 is electrically connected to the servo motor 5, and since both the control button 11 and the switch button 12 are electrically connected to the motor controller 9, the switch button 12 allows the user to easily control the start and stop of the servo motor 5, while the control button 11 allows the user to easily change the rotation direction of the servo motor 5, which helps to improve the operability of the device.

[0025] In one aspect of this embodiment, the rubber pads 10 are arranged in a matrix on the top of the main body plate 1, which increases the friction between the top of the main body plate 1 and the tabletop, making it less likely for the device to slide on the tabletop during testing. The fixed handle 7 is convenient for the user to carry the device, and the protective cover 13 makes the surface of the fixed handle 7 softer, making it more comfortable to hold.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A detection device for LED backlight production, comprising a main plate (1), characterized in that: The left side of the top of the body plate (1) is fixedly installed with a left mounting rack (3), the right side of the top of the body plate (1) is fixedly installed with a right mounting rack (6), the inside of the left mounting rack (3) is slidably installed with a U-shaped plate (15), the inside of the right mounting rack (6) is slidably installed with a movable column (14), and the right side of the U-shaped plate (15) is fixedly connected with the left side of the movable column (14), the top of the right mounting rack (6) is fixedly installed with a servo motor (5), the servo motor (5) is fixedly installed with a threaded rod (17) through the rotating shaft of the output end, the bottom end of the threaded rod (17) is rotatably connected with the top of the body plate (1), the surface of the threaded rod (17) is threadedly connected with the inside of the movable column (14), the left side of the U-shaped plate (15) is movably installed with a movable rod (19), the right end of the movable rod (19) is fixedly installed with a moving plate (21), the left side of the moving plate (21) is fixedly installed with a telescopic spring (20), the left end of the telescopic spring (20) is fixedly connected with the inside of the U-shaped plate (15), and the left end of the movable rod (19) is fixedly installed with an arc-shaped plate (18). 2.The detection device for LED backlight production of claim 1, wherein: The front and back of the top of the body plate (1) are fixedly installed with protective plates (2), the protective plates (2) are in U-shaped, and the two sides of the protective plates (2) are fixedly connected with the left mounting rack (3) and the right mounting rack (6) respectively. 3.The detection device for LED backlight production of claim 1, wherein: The front of the U-shaped plate (15) is provided with a scale rod (16), the bottom end of the scale rod (16) is threadedly connected with the top of the body plate (1), and the top of the scale rod (16) is fixedly installed with a movable knob (4).

4. The detection device for LED backlight production according to claim 2, characterized in that: The left side of the front of the protective plate (2) is fixedly installed with a motor controller (9), the right side of the front of the protective plate (2) is fixedly installed with a mounting plate (8), and the motor controller (9) is electrically connected with the servo motor (5).

5. The detection device for LED backlight production according to claim 4, characterized in that: The surface of the mounting plate (8) is fixedly installed with control buttons (11) and switch buttons (12), and the control buttons (11) and the switch buttons (12) are electrically connected with the motor controller (9).

6. The detection device for LED backlight production of claim 1, wherein: The bottom of the body plate (1) is fixedly installed with rubber pads (10), a plurality of rubber pads (10) are arranged in a matrix on the bottom of the body plate (1).

7. The detection device for LED backlight production of claim 2, wherein: The left and right sides of the protective plate (2) are fixedly installed with fixed handles (7), and the surface of the fixed handle (7) is fixedly installed with a protective sleeve (13).

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