Optical uniformity detection support for cob-led light panels

Abstract

The utility model relates to the technical field of lamp panel detection, concretely is the optical uniformity detection support of COB - LED lamp panel, including detection support platform, the position of the top of detection support platform and close rear side is equipped with side edge positioning assembly, the position of the top of detection support platform and close rear side edge middle part is equipped with rear end positioning assembly, the top of detection support platform is equipped with the strip -shaped through -slot, be equipped with the adjusting positioning assembly on detection support platform, adjusting positioning assembly includes the threaded rod of rotation connection in strip -shaped through -slot, the outer wall threaded connection of threaded rod has the moving block, the top of moving block is equipped with the front baffle, the middle part of front baffle rear side is equipped with the spring, the rear end of spring is equipped with movable resisting board. The optical uniformity detection support of COB - LED lamp panel, through the two -way screw rod of side edge positioning assembly and the cooperation of positioning side plate, can adjust left and right positioning range simultaneously, in combination with the threaded rod of adjusting positioning assembly and spring structure, the front and rear clamping position and strength are adjusted flexibly, effectively adapt to the COB - LED lamp panel of different size.

Description

Technical Field

[0001] This utility model relates to the field of lamp board testing technology, specifically to an optical uniformity testing bracket for COB-LED lamp boards. Background Technology

[0002] COB-LED light panels are a new type of LED light source technology that directly mounts multiple LED chips onto a substrate to form a compact and uniformly emitting lighting unit. Compared to traditional LED chips, COB technology offers higher luminous efficacy, better thermal management, and lower light attenuation, and is widely used in modern lighting equipment. In practical applications, the optical uniformity of the COB-LED light panel is crucial to the lighting effect; therefore, optical uniformity testing is a key step in evaluating its performance. Optical uniformity testing requires the use of a bracket to support and fix the COB-LED light panel.

[0003] Patent CN222825648U discloses a fixing frame for LED light bead testing, including a base frame, a support frame fixedly installed on the top of the base frame, an array of cylinders mounted on the support frame, two sets of square slots symmetrically installed on the cylinders, guide rods symmetrically installed inside the square slots, a sliding plate provided inside the square slots, a drive plate fixedly installed on the sliding plate, and grooves corresponding to the drive plate provided on the square slots. This invention, through the installed clamping plate and pull spring, facilitates the fixing and limiting of LED light bead positions of different sizes. After the LED light bead to be tested is placed inside the cylinder, the pull spring resets, pulling the sliding plate to move, pushing the drive plate, which in turn pushes the clamping plate to move. After the clamping plate contacts the outer wall of the LED light bead, it limits and clamps the LED light bead, facilitating the limiting and clamping of LED light bead positions of different sizes.

[0004] The existing technology described above uses two clamping plates to hold and fix the LED light. Although it can accommodate LED lights of different sizes, the clamping force generated by the return spring cannot be adjusted. When the LED bead is large, the clamping force increases significantly, which may cause difficulty in removing the LED light or even break the LED light board. Therefore, the existing solution lacks adaptability to different sized LED beads, limiting its flexibility and safety in practical applications. In view of this, we propose an optical uniformity detection bracket for COB-LED light boards. Utility Model Content

[0005] The purpose of this invention is to provide an optical uniformity testing bracket for COB-LED light panels to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The optical uniformity testing bracket for COB-LED light panels includes a testing support platform for supporting the COB-LED light panels. A side positioning component is located at the top and near the rear of the testing support platform. This side positioning component is used for adjustable positioning of the left and right sides of the COB-LED light panels. The side positioning component includes two fixed side plates arranged symmetrically on the left and right sides. A bidirectional lead screw is rotatably connected between the two fixed side plates. Positioning side plates are threaded to both threaded areas of the bidirectional lead screw. Under the action of the bidirectional lead screw, the two positioning side plates move synchronously relative to each other or synchronously in opposite directions, thereby adapting to COB-LED light panels of different sizes and positioning the left and right sides of the COB-LED light panels. The detection support platform is provided with a rear positioning component at the top and near the middle of the rear edge. The rear positioning component includes a rectangular block and a rear baffle is provided on the front side of the rectangular block. The rear baffle plays a positioning role on the rear side of the COB-LED light panel. The top of the testing support platform is provided with a strip-shaped through groove. The testing support platform is provided with an adjustment and positioning component. The adjustment and positioning component includes a threaded rod rotatably connected in the strip-shaped through groove. A movable block is threadedly connected to the outer wall of the threaded rod. A front baffle is provided on the top of the movable block. A spring is provided in the middle of the rear side of the front baffle. A movable stop plate is provided at the rear end of the spring. The moving block is driven forward or backward by a threaded rod, thereby adjusting the front and rear positions of the front baffle to accommodate COB-LED light panels of different sizes. The movable stop plate positions the front of the COB-LED light panel, and the clamping force on the COB-LED light panel is adjusted through the cooperation of the spring and the threaded rod. When testing COB-LED light panels of the same model, simply pull the movable stop plate forward by hand to release the positioning of the COB-LED light panel. The operator can then remove the COB-LED light panel with their other hand and place the same model of COB-LED light panel to be tested in it. Then, releasing the movable stop plate will position the COB-LED light panel to be tested, making the operation convenient.

[0007] Preferably, the bottom of the testing support platform and near the left and right sides are provided with L-shaped legs. The L-shaped legs are provided with mounting holes for bolts to pass through. The L-shaped legs are used to stabilize the testing support platform and prevent it from shaking during testing.

[0008] Preferably, a first knob is rotatably connected to the outer side of one of the fixed side plates. The rotating shaft of the first knob is coaxially connected to one end of the bidirectional lead screw. The first knob is used to manually drive the bidirectional lead screw to rotate.

[0009] Preferably, a first rubber pad is adhered to the opposite sides of the two positioning side plates. The first rubber pad is used to prevent the positioning side plates from scratching the surface of the lamp plate. The bottom of the positioning side plates is in contact with the top of the detection support platform.

[0010] Preferably, the bidirectional lead screw passes through the side of the rectangular block, and the toothless section of the bidirectional lead screw is rotatably connected to the rectangular block, with the rectangular block providing rotational support for the bidirectional lead screw.

[0011] Preferably, a second rubber pad is adhered to the front side of the rear baffle, which is used to buffer the rigid contact between the rear baffle and the lamp panel. The movable stop plate is located directly in front of the rear baffle, and a third rubber pad is adhered to the rear side of the movable stop plate, which is used to protect the front surface of the lamp panel and increase friction.

[0012] Preferably, the front end of the threaded rod passes through the front side of the inner wall of the strip groove to the outside, and the front end of the threaded rod is coaxially connected to a second knob, which is used to manually drive the threaded rod to rotate to adjust the position of the front baffle.

[0013] Preferably, the front side of the movable stop plate is provided with two positioning rods arranged symmetrically from left to right. The front end of the positioning rod passes through the rear side of the front baffle to the outside. The positioning rod is used to limit the movement path of the movable stop plate and prevent it from deviating.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The optical uniformity detection bracket for this COB-LED light panel can simultaneously adjust the left and right positioning ranges by cooperating with the bidirectional lead screw of the side positioning component and the positioning side plate; combined with the threaded rod and spring structure of the adjusting positioning component, the front and rear clamping positions and forces can be flexibly adjusted, effectively adapting to COB-LED light panels of different sizes and solving the problem of uncontrollable clamping force in the prior art.

[0015] 2. The optical uniformity testing bracket for the COB-LED light panel, including the first rubber pad of the side positioning component, the second rubber pad of the rear positioning component, and the third rubber pad of the adjusting positioning component, uses flexible contact to buffer the clamping pressure, preventing rigid clamping from causing scratches or breakage on the light panel surface, thus significantly improving operational safety.

[0016] 3. The optical uniformity detection bracket for the COB-LED light board features a movable stop plate of the adjustment and positioning component that is spring-loaded and can be quickly released by pulling with one hand while the light board is replaced simultaneously with the other hand, simplifying the operation process and significantly improving detection efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model; Figure 2This is a schematic diagram of the overall second-view structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of this utility model in use. Figure 4 This is a schematic diagram of the assembly structure of the side positioning component and the rear positioning component in this utility model. Figure 5 This is a schematic diagram of the adjustment and positioning component structure in this utility model; In the diagram: 100, testing support platform; 101, strip groove; 200, side positioning assembly; 210, fixed side plate; 220, double-acting lead screw; 230, positioning side plate; 240, first rubber pad; 250, first knob; 300, rear positioning assembly; 310, rectangular block; 320, rear baffle; 330, second rubber pad; 400, adjusting positioning assembly; 410, threaded rod; 420, moving block; 430, front baffle; 440, spring; 450, movable stop plate; 460, third rubber pad; 470, positioning rod; 480, second knob; 500, L-shaped support foot. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Please see Figures 1-5 This utility model provides a technical solution: The optical uniformity testing bracket for COB-LED light panels includes a testing support platform 100, which supports the COB-LED light panels. A side positioning component 200 is provided at the top and near the rear of the testing support platform 100. The side positioning component 200 is used to adjust the left and right sides of the COB-LED light panels. The side positioning component 200 includes two fixed side plates 210 arranged symmetrically on the left and right. A bidirectional lead screw 220 is rotatably connected between the two fixed side plates 210. The two threaded areas of the bidirectional lead screw 220 are threadedly connected to positioning side plates 230. The two positioning side plates 230 move synchronously relative to each other or synchronously in opposite directions under the action of the bidirectional lead screw 220, thereby adapting to COB-LED light panels of different sizes and positioning the left and right sides of the COB-LED light panels. They only contact each other to perform the positioning function and do not exert pressure on the left and right sides of the COB-LED light panels, so as to facilitate subsequent unloading. A rear positioning component 300 is provided at the top of the detection support platform 100 and near the middle of the rear edge. The rear positioning component 300 includes a rectangular block 310. A rear baffle 320 is provided on the front side of the rectangular block 310. The rear baffle 320 plays a positioning role on the rear side of the COB-LED light panel. The top of the testing support platform 100 is provided with a strip-shaped through groove 101. The testing support platform 100 is provided with an adjustment and positioning assembly 400. The adjustment and positioning assembly 400 includes a threaded rod 410 rotatably connected in the strip-shaped through groove 101. A moving block 420 is threadedly connected to the outer wall of the threaded rod 410. A front baffle 430 is provided on the top of the moving block 420. A spring 440 is provided in the middle of the rear side of the front baffle 430. A movable stop plate 450 is provided at the rear end of the spring 440. The threaded rod 410 drives the moving block 420 to move forward or backward, thereby adjusting the front and rear positions of the front baffle 430 to accommodate COB-LED light panels of different sizes. The movable stop plate 450 positions the front of the COB-LED light panel and, through the cooperation of the spring 440 and the threaded rod 410, adjusts the clamping force on the COB-LED light panel. When testing COB-LED light panels of the same model, simply pull the movable stop plate 450 forward by hand to release the positioning of the COB-LED light panel. The operator can then remove the COB-LED light panel with their other hand and place the same model of COB-LED light panel to be tested in it. Then, releasing the movable stop plate 450 will position the COB-LED light panel to be tested, making the operation convenient.

[0021] In this embodiment, L-shaped legs 500 are provided at the bottom of the detection support platform 100 and near the left and right sides. The L-shaped legs 500 are provided with mounting holes for bolts to pass through. The L-shaped legs 500 are used to stabilize the detection support platform 100 and prevent it from shaking during detection.

[0022] Specifically, a first knob 250 is rotatably connected to the outer side of one of the fixed side plates 210. The rotating shaft of the first knob 250 is coaxially connected to one end of the bidirectional lead screw 220. The first knob 250 is used to manually drive the bidirectional lead screw 220 to rotate.

[0023] Furthermore, a first rubber pad 240 is bonded to the opposite sides of both positioning side plates 230. The first rubber pad 240 is used to prevent the positioning side plates 230 from scratching the surface of the lamp board. The bottom of the positioning side plates 230 is in contact with the top of the detection support platform 100.

[0024] Furthermore, the bidirectional lead screw 220 passes through the side of the rectangular block 310, and the toothless section of the bidirectional lead screw 220 is rotatably connected to the rectangular block 310, with the rectangular block 310 providing rotational support for the bidirectional lead screw 220.

[0025] Furthermore, a second rubber pad 330 is bonded to the front side of the rear baffle 320. The second rubber pad 330 is used to buffer the rigid contact between the rear baffle 320 and the lamp panel. The movable stop plate 450 is located directly in front of the rear baffle 320. A third rubber pad 460 is bonded to the rear side of the movable stop plate 450. The third rubber pad 460 is used to protect the front surface of the lamp panel and increase friction.

[0026] Furthermore, the front end of the threaded rod 410 passes through the front side of the inner wall of the strip groove 101 to the outside, and the front end of the threaded rod 410 is coaxially connected to a second knob 480, which is used to manually drive the threaded rod 410 to rotate in order to adjust the position of the front baffle 430.

[0027] Furthermore, the front side of the movable stop plate 450 is provided with two positioning rods 470 arranged symmetrically from left to right. The front end of the positioning rod 470 passes through the rear side of the front baffle 430 to the outside. The positioning rod 470 is used to limit the movement path of the movable stop plate 450 and prevent it from deviating. In this embodiment, the optical uniformity testing bracket for the COB-LED light panel is used by fixing the testing support 100 to the testing platform through the mounting holes of the L-shaped support 500 to ensure overall stability. Then, rotating the first knob 250 drives the bidirectional lead screw 220 to rotate, causing the two positioning side plates 230 to move synchronously relative to or in opposite directions along the bidirectional lead screw 220, adjusting them to a position suitable for the width of the COB-LED light panel to be tested, so that the first rubber pad 240 of the positioning side plate 230 makes flexible contact with the light panel from left to right (positioning only, not compression). Next, the second rubber pad 330 of the rear side of the light panel is pressed tightly against the rear baffle 320 of the rear positioning assembly 300 to complete the longitudinal positioning. Then, rotating the second knob 480 drives the threaded rod 410 to rotate. The moving block 420 moves backward along the strip groove 101, causing the front baffle 430 and the movable abutment 450 to be adjusted to the front side of the lamp plate, so that the front side of the lamp plate abuts against the third rubber pad 460. At this time, the lamp plate is fixed by the positioning side plate 230 of the side positioning component 200, the rear baffle 320 of the rear positioning component 300 and the movable abutment 450 of the adjusting positioning component 400, so that optical uniformity testing can be performed. After the test is completed, pull the movable abutment 450 forward with one hand to release the front clamp, take out the lamp plate with the other hand and replace it with the same model lamp plate to be tested, loosen the movable abutment 450 and fix it again. For lamp plates of different sizes, the spacing of the positioning side plate 230 of the bidirectional screw 220 and the position of the front baffle 430 of the threaded rod 410 can be repeatedly adjusted.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A detection support for the optical uniformity of a COB-LED light panel, comprising a detection support table (100), characterized in that: A side positioning assembly (200) is provided at the top and near the rear of the detection support platform (100). The side positioning assembly (200) includes two fixed side plates (210) arranged symmetrically on the left and right sides. A two-way lead screw (220) is rotatably connected between the two fixed side plates (210). The two threaded areas of the two-way lead screw (220) are threadedly connected to positioning side plates (230). A rear positioning assembly (300) is provided at the top and near the middle of the rear edge of the detection support platform (100). The rear positioning assembly (300) includes a rectangular fixed block (310). The front side of the 0) is provided with a rear baffle (320), the top of the detection support platform (100) is provided with a strip-shaped through groove (101), the detection support platform (100) is provided with an adjustment and positioning assembly (400), the adjustment and positioning assembly (400) includes a threaded rod (410) rotatably connected in the strip-shaped through groove (101), the outer wall of the threaded rod (410) is threadedly connected with a moving block (420), the top of the moving block (420) is provided with a front baffle (430), the middle of the rear side of the front baffle (430) is provided with a spring (440), and the rear end of the spring (440) is provided with a movable stop plate (450).

2. The optical uniformity inspection support for COB-LED lamp panel according to claim 1, characterized in that: The bottom of the testing support platform (100) and near the left and right sides are provided with L-shaped legs (500), and the L-shaped legs (500) are provided with mounting holes for bolts to pass through.

3. The optical uniformity inspection support for COB-LED lamp panel according to claim 1, wherein: One of the fixed side plates (210) is rotatably connected to a first knob (250), the shaft of the first knob (250) being coaxially connected to one end of a two-way lead screw (220).

4. The optical uniformity inspection support for COB-LED lamp panel according to claim 1, wherein: The two positioning side plates (230) are each bonded with a first rubber pad (240), and the bottom of the positioning side plate (230) is in contact with the top of the detection support platform (100).

5. The optical uniformity inspection support for COB-LED lamp panel according to claim 1, wherein: The bidirectional lead screw (220) passes through the side of the rectangular block (310), and the toothless section of the bidirectional lead screw (220) is rotatably connected to the rectangular block (310).

6. The optical uniformity inspection fixture for COB-LED lamp panels according to claim 1, characterized in that: A second rubber pad (330) is bonded to the front side of the rear baffle (320), the movable abutment (450) is located directly in front of the rear baffle (320), and a third rubber pad (460) is bonded to the rear side of the movable abutment (450).

7. The optical uniformity inspection fixture for COB-LED lamp panels according to claim 1, characterized in that: The front end of the threaded rod (410) passes through the front side of the inner wall of the strip groove (101) to the outside, and the front end of the threaded rod (410) is coaxially connected to a second knob (480).

8. The optical uniformity inspection fixture for COB-LED lamp panels according to claim 1, characterized in that: The movable stop plate (450) has two positioning rods (470) arranged symmetrically on the front side. The front end of the positioning rod (470) passes through the rear side of the front baffle (430) to the outside.

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