A PC board function detection device

Abstract

The utility model discloses a PC board function detection equipment, including the box, the inside power component of box, the back one side of box is provided with the power switch, the top center of box is provided with respectively opening button and closing button, the back of opening button and closing button is provided with the indication component of the top of box, the position of indication component after the top of box is provided with the lower limit stop board, the bottom of lower limit stop board is installed the spring probe, and the top of spring probe is through the hole of lower limit stop board and extends. Adopt the cooperation structure of quick fixture and upper and lower limit stop board, through the manual drive, the quick down pressure and reset of upper limit stop board can be realized, can complete the fixed and pick and place operation of point inspection mainboard fast, compared with the traditional fixed mode, the mainboard clamping, dismounting time is greatly shortened, the test flow efficiency is improved significantly, is especially applicable to the quick detection scene of large quantities of PC board.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a PC board functional testing device. Background Technology

[0002] In the mass production process of the electronics manufacturing industry, the PCB (polycarbonate) board is a core component of electronic devices, and its functional integrity directly determines the quality and reliability of the final product. Therefore, efficient and accurate functional testing of the PCB board is an indispensable and crucial step in the production process. Currently, existing PC board functional testing fixtures on the market generally have many problems that need to be solved: On the one hand, the mechanical structure and electrical control part of the testing fixture are designed separately and lack effective coordination, which often leads to poor contact between the probe and the PC board pins and damage to the motherboard due to excessive pressure during the testing process, which seriously affects the testing accuracy and product yield. On the other hand, the existing fixtures have cumbersome operation procedures, require high skills from operators, and cannot achieve rapid clamping and placement of PC boards, resulting in low testing efficiency and difficulty in meeting the high-efficiency screening needs in mass production. Meanwhile, the existing testing fixtures lack sufficient safety protection performance and effective safety interlocking mechanisms. Accidental energization can easily lead to testing errors, or even damage to electrical components and safety hazards to personnel. In addition, although some fixtures have basic testing functions, they do not have the ability to accurately feedback abnormal information. When the PC board has functional defects, it is impossible to quickly locate the fault type, which increases the difficulty and cost of subsequent repairs. Utility Model Content

[0003] The purpose of this invention is to provide a PC board functional testing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a PC board functional testing device, comprising a housing, an internal power assembly, a power switch on one side of the back of the housing, an on / off button and an off button at the center of the top of the housing, an indicator assembly on the top of the housing behind the on / off button, a lower limit plate on the top of the housing behind the indicator assembly, a spring probe installed at the bottom of the lower limit plate, the top of the spring probe extending through a through hole in the lower limit plate, support frames fixed on both sides of the lower limit plate, quick clamps installed at the top of the support frames, an upper limit plate at the lower pressing end of the quick clamp, and a pressing energizing assembly on the back of the upper limit plate.

[0005] Preferably, the power assembly includes a control motherboard, which is disposed on one side of the interior of the enclosure, and a power resistor is disposed on the other side of the interior of the enclosure.

[0006] Preferably, the indicator component includes a first indicator light, which is located on the top of the housing behind the open button, and a second indicator light is located to the right of the first indicator light.

[0007] Preferably, the first indicator light and the second indicator light illuminate in red and green, respectively, with red representing an abnormality and green representing a pass.

[0008] Preferably, a digital display is provided on the top left side of the enclosure, which is linked to the red indicator light to display the corresponding error code when a test is abnormal.

[0009] Preferably, the surface of the lower limiting plate is provided with a through hole that matches the spring probe, ensuring that the spring probe makes corresponding contact with the silver corner of the main board.

[0010] Preferably, the pressure-on component includes a contact rod, which is fixed to the back of the upper limit plate, and a pressure-on switch is provided on the upper part of the housing corresponding to the position of the contact rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The side wall of the enclosure is equipped with a cooling fan, which uses forced convection to reduce the temperature of core electrical components such as the control motherboard and power resistors during operation. This completely solves the problems of decreased test accuracy and component damage caused by overheating of electrical components, and ensures the stable performance of the equipment under long-term continuous operation.

[0012] The system employs a quick-clamping mechanism with upper and lower limit plates, allowing for rapid pressing and resetting of the upper limit plates via manual operation. This enables quick fixing and placement of the motherboard for inspection, significantly reducing motherboard clamping and disassembly time compared to traditional fixing methods and greatly improving testing efficiency. It is particularly suitable for rapid testing scenarios involving large batches of PC boards. The testing process is highly automated. After the control motherboard receives the start button signal, it can automatically start the testing program, drive the power resistor to simulate the load and collect signals through the spring probe. There is no need for manual intervention in the testing process, which reduces labor costs and avoids efficiency fluctuations caused by manual operation. The lower limit plate has through holes that match the spring probe, ensuring that the spring probe and the silver corner of the inspection main board make precise contact, avoiding signal acquisition errors caused by contact deviation, and providing a basic guarantee for the accuracy of test results. The system is equipped with indicator components including a first indicator light, a second indicator light, and a digital display. Test results are intuitively reflected through the light colors. In case of abnormalities, the digital display will simultaneously show the corresponding error code, enabling rapid fault location and identification. The motherboard problem can be identified without additional testing, significantly reducing the difficulty and time cost of troubleshooting. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Rear view of the connection structure details; Figure 3 for Figure 1 Top view of the connection structure details; Figure 4 for Figure 1 A detailed view of the connection structure from the front; Figure 5 for Figure 1 Detailed diagram of the connection structure in the top-view cross-section of the middle box.

[0014] In the diagram: 1. Housing, 2. Control board, 3. Power resistor, 4. Turn-on button, 5. Turn-off button, 6. First indicator light, 7. Second indicator light, 8. Lower limit plate, 9. Spring probe, 10. Support frame, 11. Quick clamp, 12. Upper limit plate, 13. Contact rod, 14. Press-down power switch. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-5 This utility model provides a technical solution for a PC board functional testing device: A PC board functional testing device includes a housing 1, which serves as the basic support structure of the fixture, integrates and fixes all internal components, and provides an installation benchmark for external operating components to ensure the overall structural stability. A heat dissipation fan is installed on the side wall of the housing 1 to reduce the temperature of electrical components such as the control motherboard 2 and power resistor 3 during operation through forced convection heat dissipation, avoiding overheating that could affect test accuracy or damage components. The housing 1 has internal power components, a power switch is provided on one side of the back of the housing 1, and an on button 4 and an off button 5 are respectively provided at the center of the top of the housing 1. After the fixture is powered on, the control program is triggered to start the test process. The pause button 4 can interrupt the test operation at any time for emergency or manual termination of abnormal tests. An indicator component is provided on the back of the on button 4 and the off button 5 at the top of the housing 1. A lower limit plate 8 is located at the top of the housing 1 behind the indicator component. A spring probe 9 is installed at the bottom of the lower limit plate 8, and the top of the spring probe 9 extends through a through hole in the lower limit plate 8. Support frames 10 are fixed on both sides of the lower limit plate 8, and quick clamps 11 are installed at the top of the support frames 10. The quick clamps 11 are driven manually to quickly press down and reset the upper limit plate 12. The operation is convenient and can quickly complete the fixing and placement of the inspection motherboard, improving the testing efficiency. The lower end of the quick clamp 11 is provided with the upper limit plate 12. The upper limit plate 12 is linked with the quick clamp 11 and moves downward under manual pressure, pressing the motherboard to be tested smoothly against the spring probe 9 to ensure tight contact. At the same time, mechanical limiting prevents the inspection motherboard from being damaged by excessive pressure. A pressing power component is provided on the back of the upper limit plate 12. The power component includes a control motherboard 2, which is located on one side of the inside of the housing 1. A power resistor 3 is provided on the other side of the inside of the housing 1.

[0017] The indicator component includes a first indicator light 6, which is located at the top of the housing 1 behind the start button 4. A second indicator light 7 is located to the right of the first indicator light 6. The first indicator light 6 and the second indicator light 7 light up in red and green, respectively, with red indicating an abnormality and green indicating a pass. A digital display is located on the top left of the housing 1, which is linked to the red indicator light and displays the corresponding error code when a test is abnormal.

[0018] The surface of the lower limit plate 8 has a through hole that matches the spring probe 9, ensuring that the spring probe 9 makes corresponding contact with the silver corner of the main board. The pressure-on component includes a contact rod 13, which is fixed to the back of the upper limit plate 12. A pressure-on switch 14 is set on the upper part of the housing 1 at the position corresponding to the contact rod 13. When the upper limit plate 12 is pressed down, the contact rod 13 triggers the pressure-on switch 14. The main circuit of the fixture is connected only when the main board is fully pressed (the probe makes good contact), realizing the safety interlock of "powering on after mechanical positioning" to avoid test errors or component damage caused by accidental power-on.

[0019] Working Principle: When using a PC board functional testing device, the user first connects the external power supply and then presses the power switch. The fixture enters standby mode. The main board is placed in the testing area of ​​the lower limit plate 8, ensuring that the pins of the main board correspond to the positions of the spring probes 9. By manually pressing the quick clamp 11, the upper limit plate 12 is driven to move downward, smoothly pressing the main board against the spring probes 9 until the contact rod 13 triggers the downward power switch 14, activating the main test circuit of the fixture. Pressing the start button 4 controls the main board 2 to receive signals and start the testing program, driving the power resistor 3 to simulate the main board's workload. Simultaneously, the spring probe 9 collects real-time signals from the mainboard. If the mainboard functions normally, the second indicator light 7 illuminates, indicating that the test has passed. If the mainboard is abnormal (signal exceeds the standard range), the first indicator light 6 illuminates, and the digital display shows the corresponding error code, indicating that the test has failed. After the test is completed, the quick clamp 11 is released, the upper limit plate 12 rises under the action of the reset mechanism, the contact rod 13 disengages from the power switch 14, and the main circuit is disconnected. If it is necessary to terminate the test midway, the close button 5 can be pressed, and the program will stop running immediately. The mainboard that has completed the test is removed, completing one test cycle.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PC board functional testing device, comprising a housing (1), characterized in that, The internal electrical components of the enclosure (1) are provided. A power switch is provided on one side of the back of the enclosure (1). An open button (4) and an close button (5) are respectively provided at the center of the top of the enclosure (1). An indicator component is provided on the back of the open button (4) and the close button (5) at the top of the enclosure (1). A lower limit plate (8) is provided on the top of the enclosure (1) behind the indicator component. A spring probe (9) is installed at the bottom of the lower limit plate (8), and the top of the spring probe (9) extends through the through hole on the lower limit plate (8). Support frames (10) are fixed on both sides of the lower limit plate (8). A quick clamp (11) is installed on the top of the support frame (10). An upper limit plate (12) is provided on the lower pressing end of the quick clamp (11). A pressing power supply component is provided on the back of the upper limit plate (12).

2. The PC board functional testing device according to claim 1, characterized in that, The power assembly includes a control board (2), which is located on one side of the interior of the housing (1), and a power resistor (3) is located on the other side of the interior of the housing (1).

3. The PC board functional testing device according to claim 1, characterized in that, The indicator component includes a first indicator light (6), which is located at the top of the housing (1) behind the open button (4), and a second indicator light (7) is located to the right of the first indicator light (6).

4. The PC board functional testing device according to claim 3, characterized in that, The first indicator light (6) and the second indicator light (7) light up in red and green respectively, with red representing an abnormality and green representing a pass.

5. The PC board functional testing device according to claim 1, characterized in that, A digital display is provided on the top left side of the housing (1), which is linked with the red indicator light and displays the corresponding error code when a test is abnormal.

6. The PC board functional testing device according to claim 1, characterized in that, The surface of the lower limit plate (8) is provided with a through hole that matches the spring probe (9) to ensure that the spring probe (9) makes corresponding contact with the silver corner of the main board.

7. The PC board functional testing device according to claim 1, characterized in that, The pressure-on component includes a contact rod (13), which is fixed to the back of the upper limit plate (12). A pressure-on switch (14) is provided on the top of the housing (1) corresponding to the position of the contact rod (13).

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