Lamp strip function test equipment

Abstract

The utility model discloses a lamp strip function test device, which relates to the technical field of lamp strip test, solves the problems of uneven heating and poor test accuracy when an LED lamp strip is tested in different temperature environments, and comprises at least one lower positioning unit, at least one upper positioning unit and at least one lower positioning unit, the positioning carrier plate is provided with at least one first positioning groove matched with the shape of a lamp strip to be tested, and the bottom of the positioning carrier plate is provided with a heating mechanism; the upper pressing unit comprises an upper pressing plate, at least one wiring mechanism is arranged at the bottom of the upper pressing plate, and a code scanning gun is arranged on the upper pressing plate; and a lifting driving mechanism. According to the equipment, the lamp strip can be accurately positioned, meanwhile, the lamp strip is heated through the heating mechanism, different temperature environments of the lamp strip are simulated, the lamp strip is heated more uniformly in the positioning groove, various functional indexes such as current and voltage of the lamp strip are tested through the external testing mechanism after the lamp strip is powered on, and the testing efficiency is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of LED strip testing technology, and in particular to an LED strip function testing device. Background Technology

[0002] LEDs are widely used in the lighting field, especially with the rapid development of LCD technology. LEDs have become even more widely used as backlights for LCD panels because they offer advantages over cold cathode fluorescent lamps (CCFLs), such as lower power consumption and longer lifespan. Therefore, for decorative purposes, LEDs are often assembled onto FPCs (flexible printed circuit boards) or rigid PCBs to form various shapes of light strips. Due to their long lifespan, energy efficiency, and environmental friendliness, they are gradually gaining prominence in various decorative industries.

[0003] Before leaving the factory, LED light strips need to be tested under simulated temperature environments to ensure their various parameters (such as current and voltage) are normal and that the light strips can function properly. Current technology typically places the LED light strips in a temperature change test chamber when simulating different temperature environments. However, this method creates a high-temperature environment around the light strip, making it inconvenient to place testing equipment and affecting the connection between the testing equipment and the LED light strip. Furthermore, due to the high flexibility of LED light strips, they easily bend and coil when placed in the test chamber, making it difficult to uniformly heat the circuit board on the light strip, affecting test results, and ultimately impacting the evaluation of product quality, thus failing to ensure the quality of the LED light strips. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a LED strip function testing device, which solves the problems of uneven heating and poor testing accuracy when testing LED strips under different temperature environments.

[0005] The technical solution of this utility model to achieve the above objectives is a light strip function testing device, comprising:

[0006] At least one lower positioning unit, the lower positioning unit being slidably configured, the lower positioning unit including a positioning carrier plate, the positioning carrier plate having at least one first positioning groove adapted to the shape of the light strip to be tested, and the bottom of the positioning carrier plate being provided with a heating mechanism for heating the light strip to be tested located in the first positioning groove.

[0007] An upper pressure unit is located above the lower positioning unit. The upper pressure unit includes an upper pressure plate. The bottom of the upper pressure plate has at least one wiring mechanism. The wiring mechanism has several probes. The positions of the probes correspond to the positions of the wiring terminals of the light strip to be tested, so as to make electrical contact with the wiring terminals of the light strip to be tested. The probes are externally connected to a testing mechanism. At least one barcode scanner for scanning the light strip to be tested is provided on the upper pressure plate.

[0008] A lifting drive mechanism is provided, which is connected to the upper pressure unit to control the upper pressure unit to move up and down.

[0009] Preferably, the heating mechanism includes a heating plate and a heating tube connected to the heating plate, and the lower positioning unit further includes a base plate. The heating plate is located between the base plate and the positioning carrier plate, and the heating plate has at least one positioning protrusion that extends upward into the first positioning groove.

[0010] Preferably, the positioning carrier plate is provided with a positioning block for positioning the wiring terminal of the light strip to be tested. The positioning block has a second positioning groove that matches the shape of the product to be tested. The second positioning groove and the first positioning groove are connected to form a positioning groove that matches the overall shape of the light strip. The positioning block has multiple positioning pins.

[0011] Preferably, the upper pressing unit further includes an upper plate and a lower plate connected to the upper plate above via a connecting rod. The barcode scanner is mounted on the lower plate, and the lower plate has a clearance hole located below the barcode scanner. The wiring mechanism includes an upper pin block, on which a plurality of probes are provided. The upper pin block has a plurality of positioning holes that cooperate with positioning pins. A horn connector is fixedly mounted on one side of the upper plate, and the plurality of probes are electrically connected to the horn connector via wires.

[0012] Preferably, a recoil device is provided at each end of the upper plate, and a temperature sensor for detecting the temperature of the light strip under test is provided in the middle area of ​​the lower plate.

[0013] Preferably, the LED strip function testing equipment also includes a machine base, on which multiple vertically fixed guide rods are provided, and a lifting plate is provided above the machine base. The two ends of the lifting plate are slidably connected to the guide rods, and the pressing unit is installed at the bottom of the lifting plate.

[0014] Preferably, the lifting drive mechanism includes a lifting cylinder, which is vertically fixed, and the output end of the lifting cylinder is connected to the lifting plate.

[0015] Preferably, there are two lower positioning units, which are arranged in parallel vertically. Both lower positioning units are mounted on a slider fixing plate. One slider fixing plate is horizontally slidably connected to a slider fixed on the frame via a slide rail. A base is provided on each side of the machine base. The other slider fixing plate is horizontally slidably connected to a slider fixed on the base via a slide rail.

[0016] Preferably, each slider fixing plate is provided with a horizontal movement drive cylinder at its bottom, and the output end of the horizontal movement drive cylinder is connected to the slider fixing plate.

[0017] Its advantages over existing technologies are:

[0018] In this invention, the LED strip can be positioned using the positioning slot on the positioning carrier plate. Before testing, the LED strip is scanned with a barcode scanner to bind the test results to the LED strip for easy traceability later. The lifting drive mechanism controls the upper pressure unit to move down, pressing the LED strip tightly through the pressure plate. The probe at the bottom of the pressure plate makes electrical contact with the LED strip's wiring terminals. The probe is connected to an external testing mechanism, and the heating mechanism heats the LED strip to simulate its working state under different temperature environments. The LED strip is heated more evenly in the positioning slot. After the LED strip is powered on, the external testing mechanism tests the LED strip's current, voltage, and other functional indicators. This method not only improves the testing efficiency of the LED strip but also ensures the accuracy of the test results. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the LED strip function testing device in this utility model;

[0020] Figure 2 This is a structural diagram of the LED strip function testing equipment after removing the side panel and control cabinet;

[0021] Figure 3 yes Figure 2 Another structural diagram from another perspective;

[0022] Figure 4 This is a schematic diagram of the structure of the lower positioning unit installed on the sliding plate in the LED strip function testing equipment;

[0023] Figure 5 This is a schematic diagram of the lower positioning unit;

[0024] Figure 6 This is an exploded structural diagram of the lower positioning unit;

[0025] Figure 7 This is a schematic diagram of the upper pressure unit in the LED strip function testing equipment;

[0026] Figure 8This is a structural schematic diagram of the upper pressure unit from another perspective;

[0027] Figure 9 This is a schematic diagram of the wiring mechanism in the pressure unit.

[0028] In the diagram, 1. Machine base; 2. Lower positioning unit; 21. Positioning carrier plate; 211. First positioning groove; 22. Base plate; 23. Positioning block; 231. Positioning pin; 232. Second positioning groove; 3. Upper pressing unit; 31. Upper plate; 32. Lower plate; 33. Connecting rod; 34. Pressure plate; 35. Wiring mechanism; 351. Upper needle plate; 352. Probe; 4. Side plate; 5. Control cabinet; 6. Lifting drive mechanism; 61. Lifting cylinder; 7. Lifting plate; 8. Guide rod; 9. Sliding plate; 10. Slide rail; 11. Heating mechanism; 111. Heating plate; 1111. Positioning protrusion; 112. Heating element; 12. Barcode scanner; 13. Temperature sensor; 14. Limiting post; 15. Backlash device; 16. Horn connector; 17. Base; 18. Horizontal movement drive cylinder; 19. Slider. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the 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 scope of protection of the present utility model.

[0030] like Figures 1-2 As shown, a preferred embodiment of this utility model proposes a light strip function testing device. This device mainly consists of a machine base 1, an upper pressure unit 3, a lower positioning unit 2, a lifting drive mechanism 6, a control cabinet 5, and a heating mechanism 11. The upper pressure unit 3 is located above the lower positioning unit 2 and its vertical movement is controlled by the lifting drive mechanism 6. Two lower positioning units 2 are provided, both of which can move horizontally relative to the machine base 1. The two lower positioning units 2 can switch positions to achieve uninterrupted testing of the light strip.

[0031] like Figure 2 , Figure 3As shown, two lower positioning units 2 are respectively mounted on two sliding plates 9, allowing the two lower positioning units 2 to switch between moving. One sliding plate 9 is located on the upper layer, and the other on the lower layer. A T-shaped base 17 is provided on each side of the upper part of the machine base 1, and multiple sliders 19 are mounted on each base 17. The bottom of the upper sliding plate 9 is horizontally connected to the slider 19 via a slide rail 10. Multiple sliders 19 are also installed in the middle area of ​​the upper part of the machine base 1, and the bottom of the lower sliding plate 9 is horizontally connected to the slider 19 via a slide rail 10. Therefore, the two lower positioning units 2 can switch back and forth during operation to test the light strip, thereby improving the testing efficiency of the light strip.

[0032] like Figure 3 As shown, in order to facilitate the movement of the sliding plate 9, a horizontal movement drive cylinder 18 is provided on one side of one of the bases 17. The horizontal movement drive cylinder 18 is horizontally fixed on the cylinder fixing plate, and the cylinder fixing plate is fixed on the base 17 by screws. The output end of the horizontal movement drive cylinder 18 is connected to the sliding plate 9 to drive the upper sliding plate 9 to move.

[0033] A horizontal movement drive cylinder 18 is also installed on the machine base 1. The output end of the horizontal movement drive cylinder 18 is connected to the bottom of the lower sliding plate 9 to drive the lower sliding plate 9 to move. Furthermore, a protective cover is provided around the lower sliding plate 9 to protect the slider 19 and the slide rail 10, so as to prevent foreign objects from entering the gap between the slider 19 and the slide rail 10 and affecting the sliding.

[0034] like Figures 4-6 As shown, each lower positioning unit 2 is equipped with a heating mechanism 11 for heating the light strip. The lower positioning unit 2 mainly consists of a base plate 22, a positioning carrier plate 21, and a positioning block 23. The heating mechanism 11 consists of a heating plate 111 and a heating tube 112. The base plate 22 is fixed to the sliding plate 9 by screws. A mounting groove is provided on the base plate 22. The shape of the mounting groove is adapted to the shape of the heating plate 111 for mounting and fixing the heating plate 111.

[0035] Two first positioning grooves 211 are formed on the positioning carrier plate 21. The shape of the first positioning grooves 211 is adapted to the shape of the light strip, and the two first positioning grooves 211 are centrally symmetrically distributed. Two mounting grooves are also formed at each end of the positioning carrier plate 21 for mounting and fixing positioning blocks 23. The two positioning blocks 23 correspond one-to-one with the two first positioning grooves 211. A second positioning groove 232 is formed on the positioning block 23. The shape of the second positioning groove 232 is adapted to the shape of the wiring terminal of the light strip, which is used to connect to the testing mechanism for power supply. The shape of the positioning groove formed by the second positioning groove 232 and the first positioning groove 211 is adapted to the overall shape of the light strip.

[0036] Since the wiring terminals of different light strips may have different shapes, the positioning block 23 can be replaced to adapt to the testing of different light strips.

[0037] The positioning carrier plate 21 is fixedly mounted on the base plate 22 with screws, while the heating plate 111 is sandwiched between the positioning carrier plate 21 and the base plate 22. Multiple heating tubes 112 are provided, all connected to the heating plate 111. The heating plate 111 is made of copper, which has good thermal conductivity. When the heating tubes 112 heat up, they will heat the light strip more than the heating plate 111, and the heated plate 111 will then heat the light strip. To facilitate the extension of the heating tubes 112, clearance grooves are provided at corresponding positions on the base plate 22, through which the heating tubes 112 extend.

[0038] The aforementioned first positioning groove 211 is vertically continuous. Two positioning protrusions 1111 also protrude upwards on the heating plate 111, their shapes matching the shape of the first positioning groove 211. After the heating plate 111 is sandwiched between the positioning carrier plate 21 and the base plate 22, the positioning protrusions 1111 will insert into the first positioning groove 211. The positioning carrier plate 21 can simultaneously position and heat two light strips.

[0039] When the LED strip is placed into the first and second positioning slots 232, the portion of the LED strip containing LEDs, etc., will be accommodated in the first positioning slot 211 and contact the positioning protrusion 1111. The positioning protrusion 1111 on the heating plate 111 will heat the portion of the LED strip containing LEDs, etc. The wiring terminals of the LED strip will be accommodated in the second positioning slot 232 and will not contact the heating plate 111, therefore this part will not be heated.

[0040] like Figure 7 , Figure 8As shown, the upper pressure unit 3 is located above the lower positioning unit 2. It mainly consists of an upper plate 31, an upper pressure plate 34, a lower plate 32, and a wiring mechanism 35. The upper plate 31 and the lower plate 32 are parallel vertically and connected by a connecting rod 33 to form a stable frame structure. The pressure plate 34 is fixedly installed at the bottom of the lower plate 32, while there are two wiring mechanisms 35, which are fixedly installed at the bottom of the pressure plate 34 near both ends, and correspond to the two positioning blocks 23 on the positioning carrier plate 21.

[0041] refer to Figure 9 The wiring mechanism 35 consists of an upper pin block and several probes 352. The upper pin block is fixed to the bottom of the pressure plate 34 by screws, and the probes 352 are vertically fixed on the upper pin block. When the pressure plate 34 is pressed down, the probes 352 will make electrical contact with the wiring terminals of the LED strip. Each positioning block 23 has multiple positioning pins 231, and each upper pin block has a positioning hole. When the pressure plate 34 is pressed down, the positioning pins 231 will be inserted into the positioning holes to position the positioning block 23 and the upper pin block, so as to ensure that the probes 352 make accurate electrical contact with the wiring terminals of the LED strip.

[0042] like Figure 8 As shown, a horn connector 16 is installed on the upper plate 31. Several probes 352 of the two wiring mechanisms 35 are connected to the horn connector 16 through wires. The horn connector 16 serves as a general connection port and will be connected to the testing mechanism to perform power-on testing on the light strip.

[0043] To prevent damage to the lower positioning unit 2 when the upper pressing unit 3 presses down, several limiting posts 14 are provided at the bottom of the pressure plate 34. These limiting posts 14 are elastic and have a certain degree of cushioning. At the same time, there is a notch at each end of the pressure plate 34, and a recoil device 15 is provided in each notch. The recoil device 15 is vertically fixed to the lower plate 32 and also serves as a cushioning device.

[0044] The light strip has a QR code or barcode. In order to record the test information of the light strip, a barcode scanner 12 is set at each end of the lower plate 32. The two barcode scanners 12 correspond to the two positioning blocks 23 on the positioning carrier plate 21 respectively. The QR code or barcode is on the wiring terminal of the light strip. At the same time, there is a clearance hole on the pressure plate 34 so that the barcode scanner 12 can scan the light strip below through the clearance hole. The test results of the light strip will be bound to the QR code or barcode for viewing.

[0045] Two temperature sensors 13 are also installed on the lower plate 32 to detect the temperature of the lower light strip. The two temperature sensors 13 correspond one-to-one with the two first positioning slots 211 on the positioning carrier plate 21. When the heating plate 111 heats the light strip, the temperature sensors 13 will detect the temperature of the light strip. Only when the temperature reaches the set value will the light strip be tested to detect changes in the current, voltage and other indicators of the light strip.

[0046] like Figure 2 As shown, the lifting drive mechanism 6 is used to drive the upper pressing unit 3 to move up and down. The lifting drive mechanism 6 adopts a lifting cylinder 61. There are two lifting cylinders 61 located at both ends of the lifting plate 7, and the upper pressing unit 3 is fixedly installed at the bottom of the lifting plate 7.

[0047] Multiple guide rods 8 are provided on the machine base 1, and the lifting plate 7 is slidably connected to the guide rods 8. The output end of the lifting cylinder 61 is connected to the lifting plate 7, and the other end extends into the control cabinet 5 on the machine base 1 and is installed and fixed inside the control cabinet 5. The control cabinet 5 is used to control the operation of various mechanisms.

[0048] like Figure 1 As shown, several side plates 4 are provided along the edge of the machine base 1, and the control cabinet 5 is fixedly installed on the top of the side plates 4. The side plates 4 serve a protective function.

[0049] During operation, one of the lower positioning units 2 moves out under the drive of the horizontal movement drive cylinder 18, and then places the light strip into the first positioning groove 211 for positioning. Then, the lower positioning unit 2 returns to its original position (directly below the upper pressing unit 3). Next, the other lower positioning unit 2 moves out, while the upper pressing unit 3 moves down under the drive of the lifting cylinder 61, pressing the light strip firmly. Simultaneously, the probe 352 makes electrical contact with the wiring terminal of the light strip. The heating mechanism 11 heats the light strip. The testing mechanism connects to the horn connector 16 to power on and test the light strip. The light strip completes the test under different temperature environments. After the test, the upper pressing unit 3 moves up, the lower positioning unit 2 moves out, and the other lower positioning unit 2 returns to its original position. The above steps are repeated to test the light strip.

[0050] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A device for testing the function of LED strip lights, characterized in that, include: At least one lower positioning unit (2) is slidably disposed. The lower positioning unit (2) includes a positioning carrier plate (21). The positioning carrier plate (21) has at least one first positioning groove (211) that is adapted to the shape of the light strip to be tested. The bottom of the positioning carrier plate (21) is provided with a heating mechanism (11) for heating the light strip to be tested located in the first positioning groove (211). The upper pressure unit (3) is located above the lower positioning unit (2). The upper pressure unit (3) includes an upper pressure plate (34). The bottom of the upper pressure plate (34) has at least one wiring mechanism (35). The wiring mechanism (35) has a plurality of probes (352). The positions of the plurality of probes (352) correspond to the positions of the wiring terminals of the light strip to be tested, so as to make electrical contact with the wiring terminals of the light strip to be tested. The plurality of probes (352) are externally connected to a testing mechanism. The upper pressure plate (34) is provided with at least one barcode scanner (12) for scanning the light strip to be tested. A lifting drive mechanism (6) is driven to the upper pressure unit (3) to control the upper pressure unit (3) to move up and down.

2. The LED strip function testing device according to claim 1, characterized in that, The heating mechanism (11) includes a heating plate (111) and a heating tube (112) connected to the heating plate (111). The lower positioning unit (2) also includes a base plate (22). The heating plate (111) is located between the base plate (22) and the positioning carrier plate (21). The heating plate (111) has at least one positioning protrusion (1111) which extends upward into the first positioning groove (211).

3. The LED strip function testing device according to claim 1, characterized in that, The positioning carrier plate (21) is provided with a positioning block (23) for positioning the wiring terminal of the light strip to be tested. The positioning block (23) has a second positioning groove (232) that matches the shape of the product to be tested. The second positioning groove (232) and the first positioning groove (211) are connected to form a positioning groove that matches the overall shape of the light strip. The positioning block (23) has a plurality of positioning pins (231).

4. The LED strip function testing device according to claim 3, characterized in that, The upper pressure unit (3) also includes an upper plate (31) and a lower plate (32) connected to the upper plate (31) above by a connecting rod (33). The barcode scanner (12) is mounted on the lower plate (32). The lower plate (32) has a clearance hole located below the barcode scanner (12). The wiring mechanism (35) includes an upper pin block with a plurality of probes (352) on it. The upper pin block has a plurality of positioning holes that cooperate with the positioning pins (231). A horn connector (16) is fixedly mounted on one side of the upper plate (31). The plurality of probes (352) are electrically connected to the horn connector (16) through wires.

5. The LED strip function testing device according to claim 4, characterized in that, A recoil device (15) is provided at each end of the upper plate (31), and a temperature sensor (13) for detecting the temperature of the lamp strip under test is provided in the middle area of ​​the lower plate (32).

6. The LED strip function testing device according to claim 1, characterized in that, The LED strip function testing equipment also includes a machine base (1), on which multiple vertically fixed guide rods (8) are provided. A lifting plate (7) is provided above the machine base (1). The two ends of the lifting plate (7) are slidably connected to the guide rods (8) and the upper pressure unit (3) is installed at the bottom of the lifting plate (7).

7. The LED strip function testing device according to claim 6, characterized in that, The lifting drive mechanism (6) includes a lifting cylinder (61), which is vertically fixed, and the output end of the lifting cylinder (61) is connected to the lifting plate (7).

8. The LED strip function testing device according to claim 6, characterized in that, The lower positioning unit (2) is provided in two, and the two lower positioning units (2) are arranged in parallel vertically. Both lower positioning units (2) are installed on the sliding plate (9). One of the sliding plates (9) is horizontally slidably connected to the slider (19) fixed on the frame through the slide rail (10). The machine base (1) is provided with a base (17) on each side. The other sliding plate (9) is horizontally slidably connected to the slider (19) fixed on the base (17) through the slide rail (10).

9. The LED strip function testing device according to claim 8, characterized in that, Each sliding plate (9) is provided with a horizontal movement drive cylinder (18) at its bottom, and the output end of the horizontal movement drive cylinder (18) is connected to the sliding plate (9).

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