LED circuit board function testing device

Abstract

The utility model relates to the technical field of circuit board function testing devices, and discloses an LED circuit board function testing device, which comprises a host seat module, an upper cover module is arranged at the upper end of the host seat module, the upper cover module comprises a mounting rack, the host seat module comprises a control system box, a plurality of limiting holes are formed in the upper end of the control system box, and the mounting rack is arranged on the control system box. Limiting clamping modules are arranged at the upper ends of four of the multiple limiting holes, an industrial personal computer is fixedly arranged on the lower side of the front end of the control system box through bolts, and a power box storage frame is arranged in the middle of the front end of the control system box. According to the utility model, the limiting hole can be accurately matched with the threaded mounting rod of the limiting clamping module, the mounting distance can be flexibly adjusted according to the size of the circuit board, and the limiting clamping module can accurately clamp and position the circuit boards with different sizes and provide buffer protection for the spring damper through the design of the damping rotating shaft, the threaded push rod and the like.

Description

An LED circuit board functional testing device Technical Field

[0001] This utility model relates to the technical field of circuit board functional testing devices, and in particular to an LED circuit board functional testing device. Background Technology

[0002] The LED circuit board functional testing device is used to detect whether an LED circuit board is working properly. It consists of a workbench, a probe board, and a storage board. The test probes contact the solder joints or test points on the LED board to input test signals, such as voltage and current, into the LED board. At the same time, it detects the output signals of the LED board, such as the LED's light emission and voltage drop, thereby determining whether the LED board has faults such as open circuit, short circuit, or LED damage.

[0003] Traditional fixtures are mostly designed with fixed spacing, which makes it difficult to adapt to non-standard sized circuit boards. This requires frequent fixture replacements, increasing time and costs. Although some devices support probe position adjustment, it only applies to the layout of test points and lacks the ability to adapt to the overall size of the circuit board.

[0004] Therefore, those skilled in the art have provided an LED circuit board functional testing device to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a functional testing device for LED circuit boards. The limiting hole of this device can accurately fit the threaded mounting rod of the limiting clamping module, and the installation spacing can be flexibly adjusted according to the size of the circuit board. The limiting clamping module, through the design of damping shaft, threaded push rod, etc., can accurately clamp and position circuit boards of different sizes, and the spring damper provides buffer protection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an LED circuit board functional testing device, including a main unit module, an upper cover module at the upper end of the main unit module, the upper cover module including a mounting bracket, the main unit module including a control system box, the upper end of the control system box having multiple limiting holes, four of the multiple limiting holes having limiting clamping modules at their upper ends, an industrial control computer being fixedly mounted on the lower front side of the control system box by bolts, and a power supply box storage frame being provided at the middle front side of the control system box;

[0007] The plurality of limiting clamping modules include mounting blocks, sliding plates are slidably disposed at the upper middle position of the plurality of mounting blocks, fixing boxes are fixedly disposed on the inner side of the plurality of sliding plates, spring dampers are fixedly disposed inside the plurality of fixing boxes, rubber buffer blocks are fixedly disposed on the inner side of the plurality of spring dampers, threaded push rods are threadedly sleeved in the middle of the plurality of mounting blocks, and rubber pads are fixedly disposed at the upper end of the plurality of mounting blocks.

[0008] Furthermore, a damping shaft is fixedly provided at the lower end of each of the mounting blocks, and a threaded mounting rod is fixedly provided at the lower end of each of the damping shafts. Each of the damping shafts is composed of a bushing and a shaft and can rotate on its own.

[0009] Furthermore, the upper cover module includes a mounting frame, and an electric steel is fixedly installed at the center of the inner top surface of the mounting frame.

[0010] Furthermore, a press is fixedly installed at the output end of the electric steel, and a mounting plate is fixedly installed at the lower end of the press by bolts.

[0011] Furthermore, cooling fans are fixedly installed on both sides of the upper rear part of the mounting bracket, and dustproof nets are fixedly installed on the upper ends of the two cooling fans by bolts.

[0012] Furthermore, two test IOZU boxes are fixedly mounted on the upper front side of the control system box by bolts, and a power control panel is fixedly mounted on the upper front side of the control system box by bolts.

[0013] Furthermore, a button panel is fixedly installed on the front side of the upper end of the control system box.

[0014] Furthermore, a signal light is fixedly installed on one side of the upper front part of the mounting bracket by bolts.

[0015] This utility model has the following beneficial effects:

[0016] 1. The present invention proposes an LED circuit board functional testing device. The limiting hole of the device can accurately fit the threaded mounting rod of the limiting clamping module. The installation spacing can be flexibly adjusted according to the size of the circuit board. The limiting clamping module can accurately clamp and position circuit boards of different sizes through the design of damping rotating shaft, threaded push rod, etc., and the spring damper provides buffer protection.

[0017] 2. This utility model proposes an LED circuit board functional testing device, which consists of three main parts: a main unit module, an upper cover module, and a limiting clamping module. The device is designed to be assembled in a modular manner to facilitate loading, unloading, debugging, and transportation. Furthermore, the device controls the power supply via RS232, supplies power to the PCBA according to the test requirements, automatically scans the PCB barcode and uploads it to the host computer, links the test progress and results, and coordinates with the industrial computer, test IOZU box, etc. to test resistance, voltage, and other data point by point. The electric steel precisely controls the press for testing, and finally generates a data package, which greatly improves the accuracy and convenience of testing. Attached Figure Description

[0018] Figure 1 is an axonometric view of the present invention;

[0019] Figure 2 is a frontal axial view of the present invention;

[0020] Figure 3 is an isometric view of the main unit module of this utility model;

[0021] Figure 4 is an axial side view of the limiting clamping module of this utility model;

[0022] Figure 5 is a front sectional view of the limiting clamping module of this utility model.

[0023] Legend:

[0024] 1. Main unit base module; 2. Upper cover module; 3. Limit clamping module; 101. Control system box; 102. Industrial computer; 103. Power supply box storage frame; 104. Test IOZU box; 105. Button panel; 106. Power control panel; 107. Limit hole; 201. Mounting bracket; 202. Electric steel; 203. Press; 204. Mounting plate; 205. Cooling fan; 206. Dustproof net; 207. Indicator light; 301. Mounting block; 302. Threaded push rod; 303. Sliding plate; 304. Fixing box; 305. Rubber buffer block; 306. Threaded mounting rod; 307. Rubber pad; 308. Spring damper; 309. Damping shaft. Detailed Implementation

[0025] 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.

[0026] Referring to Figures 1-3, one embodiment of the present invention provides an LED circuit board functional testing device, including a main unit module 1, the main unit module 1 including a control system box 101, the upper end of the control system box 101 having a plurality of limiting holes 107, an industrial computer 102 fixedly mounted on the lower front side of the control system box 101 by bolts, a power supply box storage frame 103 being provided in the middle front part of the control system box 101, two test IOZU boxes 104 being fixedly mounted on the upper middle front part of the control system box 101 by bolts, a power control panel 106 being fixedly mounted on the upper front part of the control system box 101 by bolts, and a button panel 105 being fixedly mounted on the upper front part of the control system box 101.

[0027] Specifically, the control system box 101, as the core component of the entire testing device, integrates complex circuit control modules and data processing lines to coordinate the collaborative work of various components such as the industrial control computer 102, the test IOZU box 104, and the power control panel 106. The limiting holes 107 are arranged in a regular pattern, and their design dimensions are precisely adapted to the threaded mounting rod 306 of the limiting clamping module 3, ensuring that the limiting clamping module 3 can be stably installed in the designated position, and the installation spacing can be flexibly adjusted according to the size and specifications of the LED circuit board to be tested.

[0028] Referring to Figure 2, an upper cover module 2 is provided on the upper end of the main unit base module 1. The upper cover module 2 includes a mounting frame 201. An electric steel 202 is fixedly installed in the middle of the inner top surface of the mounting frame 201. A press 203 is fixedly installed at the output end of the electric steel 202. A mounting plate 204 is fixedly installed at the lower end of the press 203 by bolts. Cooling fans 205 are fixedly installed on both sides of the upper rear part of the mounting frame 201. Dustproof nets 206 are fixedly installed on the upper ends of the two cooling fans 205 by bolts. An indicator light 207 is fixedly installed on one side of the upper front part of the mounting frame 201 by bolts.

[0029] Specifically, the mounting bracket 201 in the upper cover module 2 is made of high-strength aluminum alloy in one piece, possessing good structural strength and heat dissipation performance. The electric steel 202 can accurately control the downward stroke and pressure of the press 203. Various test fixtures adapted to different LED circuit board testing needs can be easily installed through the mounting plate 204. The cooling fan 205 works continuously to quickly dissipate the heat generated inside the device by the operation of components such as the electric steel 202. The dustproof net 206 effectively prevents external dust and impurities from entering, ensuring the cleanliness of the device and extending the service life of each component. The indicator light 207 intuitively reflects the operating status of the test device through the flashing state of different colored lights. For example, a solid green light indicates normal standby, while a flashing red light indicates a fault during testing. The test fixture is connected to the upper cover module 2 through a standard horn-shaped connector, which can be quickly replaced.

[0030] Referring to Figures 4-5, four of the multiple limiting holes 107 are provided with limiting clamping modules 3 at their upper ends. The multiple limiting clamping modules 3 include mounting blocks 301. A sliding plate 303 is slidably disposed at the middle position of the upper end of the multiple mounting blocks 301. A fixing box 304 is fixedly disposed on the inner side of the multiple sliding plates 303. A spring damper 308 is fixedly disposed inside the multiple fixing boxes 304. A rubber buffer block 305 is fixedly disposed on the inner side of the multiple spring dampers 308. A threaded push rod 302 is threadedly sleeved in the middle of the multiple mounting blocks 301. A rubber pad 307 is fixedly disposed at the upper end of the multiple mounting blocks 301. A damping shaft 309 is fixedly disposed at the lower end of the multiple mounting blocks 301. A threaded mounting rod 306 is fixedly disposed at the lower end of the multiple damping shaft 309. The multiple damping shaft 309 is composed of a bushing and a shaft and can rotate on its own.

[0031] Specifically, the damping shaft 309 at the bottom of the mounting block 301 in the limiting clamping module 3 allows the mounting block 301 to rotate flexibly within a certain angle range, facilitating the installation of the threaded mounting rod 306 at different limiting hole 107 positions in the main unit module 1. It can also quickly adjust the mounting block 301 to the optimal angle to ensure stable installation. The threaded push rod 302 can push the sliding plate 303 to slide horizontally on the mounting block 301 by rotation, thereby adjusting the position of the fixing box 304 and the rubber buffer block 305 to achieve precise clamping and positioning of LED circuit boards of different sizes. The spring damper 308 provides buffer protection during clamping to avoid damage to the circuit board caused by hard clamping, while the rubber pad 307 further increases the friction to prevent the circuit board from shifting during testing.

[0032] Working principle: When using this device, the limiting clamping module 3 is installed on the limiting hole 107 of the main unit base module 1 by the threaded mounting rod 306. Then, the angle of the mounting block 301 is adjusted by the damping rotating shaft 309 to clamp the middle circuit board. Then, the threaded push rod 302 is rotated to push the sliding plate 303, and the position of the fixing box 304 and the rubber buffer block 305 is adjusted. The spring damper 308 is used for buffering, and the rubber pad 307 increases the friction to achieve precise clamping and positioning of LED circuit boards of different sizes.

[0033] Next, the LED circuit board to be tested is placed on the limiting clamping module 3 and fixed. The power supply is controlled via RS232 to supply power to the PCBA according to the test requirements. Then, the power is turned on through the power control panel 106. The barcode on the PCB is scanned and uploaded to the host computer. After the data is entered, the barcode information is tracked and the test progress data results are associated. The industrial control computer 102, the test IOZU box 104, etc. work together to switch the test points on the PCB board in sequence. GND is the fixed port and the acquisition point is the adapter port. The corresponding resistance, voltage and other data of the two points are tested one by one. The fixed drift value of the resistance is automatically calculated by the system. The electric steel 202 drives the press 203 to drive the test fixture on the mounting plate 204 to press down for testing. After the test is completed, a data packet is produced. The basic data message format includes barcode information, model name, test time, test point, point test data, point judgment result and whole machine judgment result. After the test, the indicator light 207 provides real-time feedback on the test status. When the test is qualified, the green light is solid. If the test is unqualified, the red light is displayed.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A functional testing device for LED circuit boards, comprising a host module (1), characterized in that: The main unit base module (1) is provided with an upper cover module (2) at its upper end. The upper cover module (2) includes a mounting bracket (201). The main unit base module (1) includes a control system box (101). The control system box (101) has multiple limiting holes (107) at its upper end. Four of the multiple limiting holes (107) are provided with limiting clamping modules (3) at their upper ends. An industrial control computer (102) is fixedly installed on the lower front side of the control system box (101) by bolts. A power supply box storage frame (103) is provided at the middle front end of the control system box (101). The clamping module (3) includes mounting blocks (301), with sliding plates (303) slidably disposed at the middle of the upper end of multiple mounting blocks (301), and fixing boxes (304) fixedly disposed on the inner side of multiple sliding plates (303), with spring dampers (308) fixedly disposed inside multiple fixing boxes (304), and rubber buffer blocks (305) fixedly disposed on the inner side of multiple spring dampers (308), with threaded push rods (302) threadedly sleeved in the middle of multiple mounting blocks (301), and rubber pads (307) fixedly disposed at the upper end of multiple mounting blocks (301).

2. The LED circuit board functional testing device according to claim 1, characterized in that: The lower ends of the plurality of mounting blocks (301) are fixedly provided with damping shafts (309), and the lower ends of the plurality of damping shafts (309) are fixedly provided with threaded mounting rods (306). The plurality of damping shafts (309) are composed of bushings and shafts and can rotate on their own.

3. The LED circuit board functional testing device according to claim 1, characterized in that: The upper cover module (2) includes a mounting frame (201), and an electric steel (202) is fixedly installed in the middle of the inner top surface of the mounting frame (201).

4. The LED circuit board functional testing device according to claim 3, characterized in that: A press (203) is fixedly installed at the output end of the electric steel (202), and a mounting plate (204) is fixedly installed at the lower end of the press (203) by bolts.

5. The LED circuit board functional testing device according to claim 1, characterized in that: Cooling fans (205) are fixedly installed on both sides of the upper rear part of the mounting bracket (201), and dustproof nets (206) are fixedly installed on the upper ends of the two cooling fans (205) by bolts.

6. The LED circuit board functional testing device according to claim 1, characterized in that: Two test IOZU boxes (104) are fixedly installed on the upper front side of the control system box (101) by bolts, and a power control panel (106) is fixedly installed on the upper front side of the control system box (101) by bolts.

7. The LED circuit board functional testing device according to claim 1, characterized in that: A button panel (105) is fixedly installed on the front side of the upper end of the control system box (101).

8. The LED circuit board functional testing device according to claim 1, characterized in that: A signal light (207) is fixed to the upper front side of the mounting bracket (201) by bolts.

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