A detection device for light emitting diodes

Abstract

This invention relates to the field of light-emitting diodes (LEDs), and more particularly to a testing device for LEDs, comprising a housing; a plurality of inlets are sequentially opened from left to right on the upper part of the housing; a plurality of outlets are sequentially opened from left to right on the lower part of the housing; and a first driving component is also included; the first driving components are symmetrically installed on both the front and rear sides of the housing; each first driving component has a push plate at its output end; a plurality of protective blocks for protecting the LEDs are installed on the rear side of the push plate; and a plurality of limiting cylinders for limiting and supporting the LEDs are provided inside the housing, with each limiting cylinder located between two adjacent protective blocks. This invention achieves the protection of the LEDs by having the first driving component drive the protective blocks to contact and enclose them, preventing fragments from flying around after breakage due to excessive current during testing. At the same time, the upper part of the protective block can clamp the LED, preventing pin alignment from affecting its internal structure, thus achieving effective protection for the LEDs.

Description

Technical Field

[0001] This invention relates to the field of light-emitting diodes (LEDs), and more particularly to a detection device for LEDs. Background Technology

[0002] In current technology, LEDs are often tested by placing them directly or by transferring them via conveyor belts or robotic arms before powering them on. Due to the lack of protection mechanisms, excessive current can easily cause the internal chip to overheat and crack. Furthermore, there is no dedicated fixing structure for pin alignment, so external force can easily be transmitted to the inside, causing loose solder joints and chip displacement, which affects performance and lifespan.

[0003] Furthermore, the correction of LED pins often relies on manual tools or simple mechanical devices, making it difficult to accurately control the force and angle, which can easily lead to over-correction or under-correction. In addition, the holes on the top of the test box are not covered after correction, allowing impurities in the workshop to easily enter, affecting the test accuracy and equipment lifespan. Summary of the Invention

[0004] To overcome the shortcomings of light-emitting diodes (LEDs) in terms of lack of protection, susceptibility to damage, lack of correction function, and lack of shielding during testing, this invention provides a testing device for LEDs.

[0005] The technical solution is as follows: A detection device for light-emitting diodes includes a housing; a plurality of inlets are sequentially opened from left to right on the upper part of the housing; a plurality of outlets are sequentially opened from left to right on the lower part of the housing; it also includes a first driving component; the first driving component is symmetrically installed on both the front and rear sides of the housing; each first driving component has a push plate at its output end; a plurality of protective blocks for protecting the light-emitting diodes are installed on the rear side of the push plate; a plurality of limiting cylinders for limiting and supporting the light-emitting diodes are provided in the housing, and each limiting cylinder is located between two adjacent protective blocks.

[0006] Preferably, the upper part of the protective block is wavy.

[0007] Preferably, the protective block is recessed to the shape of the LED detection head.

[0008] Preferably, the lower part of the protective block has a groove.

[0009] Preferably, the device also includes a correction and detection assembly, which comprises a slide rail, a first slider, a second drive component, a transmission plate, a semi-circular locking block, an arc-shaped locking block, a limiting block, a fixing block, a second slider, a third drive component, a detection block, and probes. A slide rail is installed on both the front and rear sides of the housing. Each slide rail has a first slider. Each first slider has a second drive component. A transmission plate is installed at the output end of each second drive component. The front transmission plate has several pairs of semi-circular locking blocks for correcting the LED pins. The rear transmission plate has several arc-shaped locking blocks for correcting the LED pins. Several pairs of limiting blocks are installed inside the housing. A fixing block is installed on the upper part of the housing. A second slider is installed behind the fixing block. A third drive component is installed behind the second slider. A detection block is installed at the output end of the third drive component. Several pairs of probes for detecting the LEDs are installed below the detection block.

[0010] Preferably, the semi-circular card block is semi-circular; the arc-shaped card block is arc-shaped.

[0011] Preferably, each pair of semicircular blocks has a square slot on the side closest to each other, and the arc-shaped blocks have square slots on both the left and right sides close to the semicircular blocks.

[0012] Preferably, the limiting block is an inverted triangle.

[0013] Preferably, two adjacent semicircular blocks are connected by an elastic element.

[0014] Preferably, each arc-shaped card block is located between two adjacent semicircular card blocks.

[0015] Compared with the prior art, the present invention has the following advantages: The present invention realizes that the protective block is driven by the first driving component to contact and wrap the light-emitting diode, which can prevent the fragments from flying around after the diode breaks due to excessive current during the test. At the same time, the upper part of the protective block can hold the light-emitting diode, avoiding the impact of pin correction on its internal structure, thus realizing effective protection of the light-emitting diode and ensuring its safety during the test process.

[0016] Furthermore, the second driving component drives the relevant parts to accurately contact the pins and perform correction, which improves the accuracy of pin correction. After correction, the component forms a complete circle to cover the housing hole, preventing impurities from interfering and protecting the light-emitting diode. At the same time, the third driving component drives the detection component to move and uses the probe to perform power-on detection on the light-emitting diode, which helps protect the pins and also improves detection efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the detection device for light-emitting diodes according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the detection device for light-emitting diodes according to the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the first driving component and the slide plate assembly of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the combination of the sliding plate and the fixing block of the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of the combination of the second driving component and the transmission plate of the present invention;

[0022] Figure 6 This is an enlarged view of point A in the present invention;

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure of the combination of the semi-circular card block and the arc-shaped card block of the present invention;

[0024] Figure 8 This is a schematic diagram of the three-dimensional structure of the detection block and probe combination of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1-box body, 2-light-emitting diode, 1001-feed inlet, 1002-discharge outlet, 101-first driving component, 102-push plate, 103-protective block, 104-limiting cylinder, 201-slide rail, 202-first slider, 203-second driving component, 204-transmission plate, 205-semi-circular locking block, 20501-first limiting plate, 206-arc-shaped locking block, 20601-second limiting plate, 207-limiting block, 208-fixing block, 209-second slider, 210-third driving component, 211-detection block, 212-probe. Detailed Implementation

[0026] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0027] Example 1: A detection device for a light-emitting diode 2, such as Figures 1-4 As shown, it includes a box body 1; the upper part of the box body 1 has a plurality of feed inlets 1001 arranged from left to right; the lower part of the box body 1 has a plurality of discharge outlets 1002 arranged from left to right.

[0028] It also includes a first driving component 101, a push plate 102, a protective block 103, and a limiting cylinder 104; the first driving component 101 is symmetrically installed on both the front and rear sides of the housing 1, and the first driving component 101 is an electric push rod; each first driving component 101 has a push plate 102 at its output end; several protective blocks 103 are installed on the rear side of the push plate 102; several limiting cylinders 104 are provided inside the housing 1, and each limiting cylinder 104 is located between two adjacent protective blocks 103.

[0029] The upper part of the protective block 103 is wavy; it can clamp the light-emitting diode 2 and protect the detection head of the light-emitting diode 2 from the influence of the pins.

[0030] The protective block 103 is recessed to the shape of the LED 2 detection head, thus protecting the LED 2 while it is being detected.

[0031] The lower part of the protective block 103 has a groove; it can cooperate with the limiting cylinder 104.

[0032] In existing technologies, when testing LEDs 2, they are usually placed directly on a testing platform or transported to the testing area via a simple conveyor belt. Workers then manually place each LED 2 onto the testing station, and the probes 212 of the testing equipment directly contact the pins for power-on testing. Some more automated production lines use robotic arms to pick up LEDs 2 and transfer them to the testing device. Again, current continuity testing is performed without special protection. During use, once LEDs 2 enter the testing stage, the testing equipment directly applies a testing current. Due to the lack of an effective protection mechanism, if the current is excessively high, LEDs 2 can easily break due to overheating of the internal chip. Furthermore, when correcting the pins of LEDs 2, most existing technologies lack dedicated clamping and fixing structures, relying solely on the gripping force of the robotic arm or simple positioning blocks for limitation. In this case, the external force generated during correction is easily transmitted to the inside of the LED 2, leading to problems such as loose internal solder joints and chip displacement, thus affecting the performance and lifespan of the LED 2.

[0033] To address the aforementioned issues, LED 2 needs to be protected before testing. After LED 2 enters the housing 1 through the feed inlet 1001 in the middle of the upper part of the housing 1, the first driving components 101 on both the front and rear sides of the housing 1 push the connected slides closer together until the protective block 103 covers the detection head of LED 2, thus protecting the detection head and preventing it from breaking due to excessive current during testing. At the same time, the upper part of the protective block 103 can clamp the pins of LED 2, ensuring that the detection head of LED 2 is not affected by the pins when processing them. After testing, the adjacent protective blocks 103 separate, and LED 2 flows out from the discharge port 1002 along the limiting cylinder 104, thus facilitating the packaging of LED 2.

[0034] Example 2: Based on Example 1, as follows Figures 5-8As shown, it also includes a correction and detection assembly, which includes a slide rail 201, a first slider 202, a second drive member 203, a transmission plate 204, a semi-circular locking block 205, an arc-shaped locking block 206, a limiting block 207, a fixing block 208, a second slider 209, a third drive member 210, a detection block 211, and a probe 212; a slide rail 201 is installed on both the front and rear sides of the housing 1; a first slider 202 is provided on each slide rail 201; a second drive member 203 is installed on each first slider 202, and the second drive member 203 is an electric push rod; a transmission plate 204 is provided at the output end of each second drive member 203; several pairs of semi-circular locking blocks 205 are provided on the front transmission plate 204; each pair of semi-circular locking blocks 205 consists of two semi-circular locking blocks 205; each semi-circular... Each of the card blocks 205 is equipped with a first limiting plate 20501; several arc-shaped card blocks 206 are provided on the rear transmission plate 204; each arc-shaped card block 206 is located between two adjacent semi-circular card blocks 205; two second limiting plates 20601 are installed on each arc-shaped card block 206; several pairs of limiting blocks 207 are provided inside the housing 1; the limiting blocks 207 are inverted triangles; a fixing block 208 is installed on the upper part of the housing 1; a second slider 209 is provided on the rear side of the fixing block 208, and the second slider 209 can slide up and down along the slide rail 201 provided on the fixing block 208; a third driving component 210 is installed on the rear side of the second slider 209, and the third driving component 210 is an electric push rod; a detection block 211 is provided at the output end of the third driving component 210; several pairs of probes 212 are installed at the lower part of the detection block 211.

[0035] The semicircular block 205 is semicircular; the arc-shaped block 206 is arc-shaped; a pair of semicircular blocks 205 and an arc-shaped block 206 can be combined to form a complete circle, thereby closing the detection channel.

[0036] Each pair of semicircular blocks 205 has a square slot on one side that is close to each other. The square slot can cooperate with the second limiting plate 20601. The arc-shaped blocks 206 have square slots on both the left and right sides that are close to the semicircular blocks 205. The square slots can cooperate with the first limiting plate 20501.

[0037] Two adjacent semicircular blocks 205 are connected by an elastic element, which is a spring.

[0038] Furthermore, in the existing technology, when calibrating the pins of LED2, manual tools or simple mechanical devices are often used, such as manually bending the pins with tweezers or squeezing the pins with a fixed mold. When using these devices, it is difficult to accurately control the force and angle, often resulting in over-calibration or under-calibration of the pins. Moreover, when calibrating LED2, it is usually done in an open space without any shielding components. Dust, debris and other impurities in the workshop will adhere to the testing equipment or LED2, affecting the testing accuracy and the service life of the equipment.

[0039] To address the aforementioned issues, before testing the LED 2, the second driving member 203 on each side pushes the transmission plate 204 towards the LED 2 until the semicircular locking block 205 contacts the pin of the LED 2. Simultaneously, the first limiting plate 20501 mounted on the semicircular locking block 205 also contacts the pin of the LED 2. At the same time, the arc-shaped locking block 206 and the second limiting plate 20601 on the other side also contact the pin of the LED 2 under the push of the second driving member 203 on their respective sides. A pair of semicircular locking blocks 205 and an arc-shaped locking block 206, along with the first limiting plate 20501 and the second limiting plate 20601 mounted on them, will seal around the pin of the LED 2. Then, driven by the first slider 202, the semicircular locking blocks 205 and the arc-shaped locking blocks 206 will move along the slide rail 201 towards... After moving upwards a certain distance and reaching the top of the LED 2 pin, the third drive unit 210 located on the upper part of the housing 1 will push backwards until the detection block 211 and probe 212 are located at the top of the LED 2 pin. Then, driven by the second slider 209, the detection block 211 and probe 212 will move downwards along the track installed on the fixed block 208 until the probe 212 contacts the LED 2 pin. Then, the LED 2 is energized through the probe 212 to detect it. After the detection is completed, the detection block 211 and probe 212 move upwards back to their original positions driven by the second slider 209. At the same time, the semi-circular block 205 and the arc-shaped block 206 continue to move upwards and approach each other under the pressure of the limiting block 207 until they are combined into a complete circle, thereby sealing the detection channel and preventing impurities from entering the interior.

[0040] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A detection device for light-emitting diodes, comprising a housing (1); a plurality of inlets (1001) are sequentially opened from left to right on the upper part of the housing (1); a plurality of outlets (1002) are sequentially opened from left to right on the lower part of the housing (1); characterized in that, It also includes a first driving component (101); the first driving component (101) is symmetrically installed on both the front and rear sides of the housing (1); each first driving component (101) has a push plate (102) at its output end; a number of protective blocks (103) for protecting the light-emitting diode (2) are installed on the rear side of the push plate (102); a number of limiting cylinders (104) for limiting and supporting the light-emitting diode (2) are provided in the housing (1), and each limiting cylinder (104) is located between two adjacent protective blocks (103); It also includes a correction and detection assembly, which includes a slide rail (201), a first slider (202), a second drive unit (203), a transmission plate (204), a semi-circular locking block (205), an arc-shaped locking block (206), a limiting block (207), a fixing block (208), a second slider (209), a third drive unit (210), a detection block (211), and a probe (212); a slide rail (201) is installed on both the front and rear sides of the housing (1); a first slider (202) is provided on each slide rail (201); a second drive unit (203) is installed on each first slider (202); a transmission plate (204) is provided at the output end of each second drive unit (203); the front side The transmission plate (204) is provided with several pairs of semi-circular clips (205) for correcting the pins of the light-emitting diode (2); the transmission plate (204) on the rear side is provided with several arc-shaped clips (206) for correcting the pins of the light-emitting diode (2); several pairs of limiting blocks (207) are provided inside the housing (1); a fixing block (208) is installed on the upper part of the housing (1); a second slider (209) is provided on the rear side of the fixing block (208); a third driving component (210) is installed on the rear side of the second slider (209); a detection block (211) is provided at the output end of the third driving component (210); several pairs of probes (212) for detecting the light-emitting diode (2) are installed on the lower part of the detection block (211). The semicircular card block (205) is semicircular; the arc-shaped card block (206) is arc-shaped.

2. The detection device for light-emitting diodes according to claim 1, characterized in that, The upper part of the protective block (103) is wavy.

3. The detection device for light-emitting diodes according to claim 1, characterized in that, The protective block (103) is recessed to the shape of the detection head of the light-emitting diode (2).

4. The detection device for light-emitting diodes according to claim 1, characterized in that, The lower part of the protective block (103) has a groove.

5. The detection device for light-emitting diodes according to claim 1, characterized in that, Each pair of semicircular blocks (205) has a square slot on the side closest to each other, and the arc-shaped block (206) has square slots on both the left and right sides close to the semicircular blocks (205).

6. The detection device for light-emitting diodes according to claim 1, characterized in that, The limiting block (207) is an inverted triangle.

7. A detection device for light-emitting diodes according to claim 1, characterized in that, Two adjacent semicircular blocks (205) are connected by an elastic element.

8. The detection device for light-emitting diodes according to claim 1, characterized in that, Each arc-shaped card block (206) is located between two adjacent semicircular card blocks (205).

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