Jig for detecting LED lamp beads
By designing a fixture for testing LED beads and utilizing automatic detection with a laser emitter and photosensitive receiver, the problems of low detection efficiency, high cost, and high false negative rate in existing technologies have been solved, achieving efficient and safe testing results.
Patent Information
- Application Number
- CN202422881943.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Current LED bead testing is inefficient, labor-intensive, and prone to causing eye fatigue, and has a high rate of missed detections, which affects quality control.
An LED bead testing fixture was designed, comprising a support frame, a testing component, and a fixing component. It uses a laser emitter and a photosensitive receiver to automatically test LED beads through a rotatable arc plate. When the laser is blocked by dirt, bubbles, or impurities, an alarm is activated to achieve automatic inspection.
It improved testing efficiency, reduced labor costs, protected the eyes of staff, reduced the rate of missed detections, and enhanced quality control.
Smart Images

Figure CN223650470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED lamp bead production technology, and in particular to a fixture for testing LED lamp beads. Background Technology
[0002] LED chips are lighting devices that use light-emitting diodes as a light source. Compared with traditional incandescent and halogen lamps, LED chips have advantages such as energy saving, long lifespan, and environmental friendliness, and have been widely used in the lighting field. The production of LED chips usually involves multiple steps, including chip preparation, chip packaging, chip processing, and testing and inspection. Each step requires strict control of process parameters to ensure the quality and performance of LED products.
[0003] When testing the light transmittance of LED beads, workers are required to manually inspect the LED beads for dirt, bubbles, or impurities using a magnifying glass. This process is inefficient, labor-intensive, and prone to errors due to missed inspections, significantly impacting the manufacturer's quality control. Furthermore, prolonged use of this equipment can cause eye strain and affect the workers' health. The purpose of this invention is to address these shortcomings by providing a fixture for testing LED beads. Utility Model Content
[0004] The purpose of this utility model is achieved through the following means: a fixture for testing LED beads includes a support frame, a testing component, and a fixing component. Both the testing component and the fixing component are connected to the support frame. A support column is provided in the middle of the lower end of the support frame. The testing component includes a laser emitter, a photosensitive receiver, an arc plate, and a drive motor. The arc plate is movably connected to the top of the support frame. The laser emitter is installed at one end of the arc plate, and the photosensitive receiver is installed at the end of the arc plate away from the laser emitter and is positioned opposite to the laser emitter. An alarm is installed on the top of the photosensitive receiver. The arc plate is connected to the drive motor.
[0005] In a further embodiment of the above description, the top surface of the support frame is provided with an upper support plate, which is installed on the outer side of the arc-shaped plate. A lower support plate is provided below the arc-shaped plate, and the lower support plate is fixedly connected to the support frame, with the top surface of the lower support plate fitting against the bottom surface of the arc-shaped plate. The upper and lower support plates are used to provide a limiting effect on the arc-shaped plate.
[0006] In a further embodiment of the above description, the drive motor is fixed to one side of the support column, and a connecting plate is provided on one side of the arc-shaped plate. The connecting plate extends toward the support column and is rotatably connected to the support column. A rotating gear is provided on the bottom surface of the connecting plate, and the rotating gear meshes with the drive motor. When the drive motor rotates, the drive motor drives the rotating gear to rotate, and the rotating gear in turn drives the arc-shaped plate to rotate.
[0007] In a further embodiment of the above description, the fixing component is connected to the support column via a magnetic base. The bottom surface of the magnetic base is provided with a connecting plate, and the bottom surface of the connecting plate is provided with a slot. The top surface of the support column is provided with a locking block that matches the slot, and the top surface of the magnetic base is provided with a positioning protrusion for positioning. The slot and locking block are used to provide positioning for the connecting plate and the support column, and the positioning protrusion is used to position the magnetic base and the placement seat.
[0008] In a further embodiment of the above description, the fixing component includes a placement seat, a clamping block, and a limiting spring. The placement seat and the magnetic suction seat are magnetically attracted to each other. The bottom surface of the placement seat is provided with a positioning groove that matches the positioning protrusion. The clamping block is distributed on the top surface of the placement seat. The top surface of the placement seat near the clamping block is provided with a movable groove, and the limiting spring is disposed in the movable groove. The magnetic attraction between the magnetic suction seat and the placement seat can facilitate the replacement of the placement seat when it is required.
[0009] In a further embodiment of the above description, the bottom surface of the clamping block is provided with a connecting block, which extends toward the bottom surface of the movable groove. One end of the limiting spring is connected to one side of the connecting block, and the other end of the limiting spring is connected to the side of the movable groove away from the connecting block. One side of the clamping block is provided with a pin placement groove. The pin placement groove is used to provide a pin placement effect. The connecting block is used to drive the clamping block to perform clamping movement. The limiting spring is used to provide the clamping force of the clamping block on the lamp bead.
[0010] In the above description, as a further embodiment, the upper end of the movable groove is provided with a cover groove, and a cover plate is provided on the cover groove. The connecting block is provided with a clearance position that matches the cover plate near the cover plate. The cover plate is used to prevent the limit spring from popping out during operation.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a rotatable arc plate, and equipping the arc plate with a laser emitter and a photosensitive receiver, rotating the arc plate causes the laser emitter and photosensitive receiver to rotate, simultaneously irradiating the LED beads. When dirt, bubbles, or impurities appear inside the LED beads, the laser emitted by the laser emitter is blocked by the dirt, bubbles, or impurities, causing the photosensitive receiver to be unable to receive the light, thereby activating the alarm. This achieves the function of inspecting LED beads without the need for manual visual inspection with a magnifying glass, protecting the eyes of workers while also improving work efficiency. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of a fixture for testing LED beads according to this utility model;
[0013] Figure 2 This is an exploded view of the structure of a fixture for testing LED beads according to this utility model;
[0014] Figure 3 This is an exploded view of the structure of a fixture for testing LED beads according to this utility model from another perspective;
[0015] Figure 4 yes Figure 2 Enlarged schematic diagram of structure A in the middle;
[0016] Figure 5 This is a cross-sectional view of a fixture for testing LED beads according to the present invention;
[0017] In the diagram: 1-support frame, 2-support column, 3-laser emitter, 4-photosensitive receiver, 5-arc plate;
[0018] 6-Drive motor, 7-Alarm, 8-Upper support plate, 9-Lower support plate, 10-Connecting plate;
[0019] 11-Rotating gear, 12-Magnetic base, 13-Connecting disc, 14-Slot, 15-Card block, 16-Positioning protrusion;
[0020] 17-Placement base, 18-Clamping block, 19-Limiting spring, 20-Positioning groove, 21-Modular groove;
[0021] 22-Connecting block, 23-Pin placement slot, 24-Covering slot, 25-Covering plate, 26-Avoidance position. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0023] For this embodiment, please refer to Figures 1-5The present invention relates to a fixture for testing LED beads, comprising a support frame 1, a testing component and a fixing component, both of which are connected to the support frame 1. A support column 2 is provided in the middle of the lower end of the support frame 1. The testing component includes a laser emitter 3, a photosensitive receiver 4, an arc plate 5 and a drive motor 6. The arc plate 5 is movably connected to the top of the support frame 1. The laser emitter 3 is installed at one end of the arc plate 5, and the photosensitive receiver 4 is installed at the end of the arc plate 5 away from the laser emitter 3 and is positioned opposite to the laser emitter 3. An alarm 7 is installed on the top of the photosensitive receiver 4.
[0024] The top surface of the support frame 1 is provided with an upper support plate 8, which is installed on the outer side of the arc plate 5. A lower support plate 9 is provided below the arc plate 5. The lower support plate 9 is fixedly connected to the support frame 1, and the top surface of the lower support plate 9 is in contact with the bottom surface of the arc plate 5.
[0025] The drive motor 6 is fixed on one side of the support column 2. A connecting plate 10 is provided on one side of the arc plate 5. The connecting plate 10 extends toward the support column 2 and is rotatably connected to the support column 2. A rotating gear 11 is provided on the bottom surface of the connecting plate 10. The rotating gear 11 is meshed with the drive motor 6.
[0026] The fixing component is connected to the support column 2 via a magnetic base 12. The bottom surface of the magnetic base 12 is provided with a connecting plate 13, and the bottom surface of the connecting plate 13 is provided with a slot 14. The top surface of the support column 2 is provided with a locking block 15 that matches the slot 14, and the top surface of the magnetic base 12 is provided with a positioning protrusion 16 for positioning.
[0027] The fixing assembly includes a placement seat 17, a clamping block 18, and a limiting spring 19. The placement seat 17 is magnetically engaged with the magnetic seat 12. The bottom surface of the placement seat 17 is provided with a positioning groove 20 that matches the positioning protrusion. The clamping block 18 is distributed on the top surface of the placement seat 17. The top surface of the placement seat 17 near the clamping block 18 is provided with a movable groove 21. The limiting spring 19 is disposed in the movable groove 21.
[0028] The bottom surface of the clamping block 18 is provided with a connecting block 22, which extends toward the bottom surface of the movable groove 21. One end of the limiting spring 19 is connected to one side of the connecting block 22, and the other end of the limiting spring 19 is connected to the side of the movable groove 21 away from the connecting block 22. One side of the clamping block 18 is provided with a pin placement groove 23.
[0029] The upper end of the movable groove 21 is provided with a cover groove 24, and a cover plate 25 is provided on the cover groove 24. The connecting block 22 is provided with a clearance position 26 that matches the cover plate 25 near the cover plate 25.
[0030] The working process of this utility model is as follows: After manually opening the clamping block 18, place the LED bead to be tested into the pin placement slot 23, and then release the clamping block 18. The clamping block 18 will naturally clamp the LED bead through the limiting spring 19. After clamping, turn on the drive motor 6. The drive motor 6 drives the arc plate 5 to rotate through the rotating gear 11 and the connecting plate 10. When rotating, the laser emitter 3 and the photosensitive receiver 4 installed at both ends of the arc plate 5 irradiate the LED bead. When there is dirt, bubbles or impurities in the LED bead, the laser emitted by the laser emitter 3 is blocked by the dirt, bubbles or impurities, causing the photosensitive receiver 4 to be unable to receive the light, thereby activating the alarm 7 and realizing the function of checking the LED bead.
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0032] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0033] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A fixture for testing LED beads, comprising a support frame, a testing component, and a fixing component, wherein the testing component and the fixing component are both connected to the support frame, and a support column is provided in the middle of the lower end of the support frame, characterized in that: The detection assembly includes a laser emitter, a photosensitive receiver, an arc-shaped plate, and a drive motor. The arc-shaped plate is movably connected to the top of the support frame. The laser emitter is installed at one end of the arc-shaped plate, and the photosensitive receiver is installed at the end of the arc-shaped plate away from the laser emitter, with the photosensitive receiver and the laser emitter positioned opposite each other. An alarm is installed on the top of the photosensitive receiver.
2. The LED bead testing fixture according to claim 1, characterized in that: The support frame has an upper support plate on its top surface, which is installed on the outer side of the arc-shaped plate. A lower support plate is provided below the arc-shaped plate. The lower support plate is fixedly connected to the support frame, and the top surface of the lower support plate is in contact with the bottom surface of the arc-shaped plate.
3. The LED bead testing fixture according to claim 1, characterized in that: The drive motor is fixed to one side of the support column, and a connecting plate is provided on one side of the arc plate. The connecting plate extends toward the support column and is rotatably connected to the support column. A rotating gear is provided on the bottom surface of the connecting plate, and the rotating gear meshes with the drive motor.
4. The LED bead testing fixture according to claim 1, characterized in that: The fixing component is connected to the support column via a magnetic base. The bottom surface of the magnetic base is provided with a connecting plate, the bottom surface of the connecting plate is provided with a slot, the top surface of the support column is provided with a locking block that matches the slot, and the top surface of the magnetic base is provided with a positioning protrusion for positioning.
5. The LED bead testing fixture according to claim 4, characterized in that: The fixing component includes a placement seat, a clamping block, and a limiting spring. The placement seat and the magnetic suction seat are magnetically attracted to each other. The bottom surface of the placement seat is provided with a positioning groove that matches the positioning protrusion. The clamping block is distributed on the top surface of the placement seat. The top surface of the placement seat near the clamping block is provided with a movable groove. The limiting spring is set in the movable groove.
6. The LED bead testing fixture according to claim 5, characterized in that: The bottom surface of the clamping block is provided with a connecting block, which extends toward the bottom surface of the movable groove. One end of the limiting spring is connected to one side of the connecting block, and the other end of the limiting spring is connected to the side of the movable groove away from the connecting block. One side of the clamping block is provided with a pin placement groove.
7. The LED bead testing fixture according to claim 6, characterized in that: The upper end of the movable groove is provided with a cover groove, and a cover plate is provided on the cover groove. The connecting block is provided with a clearance position that matches the cover plate near the cover plate.