Multifunctional test tool for circuit board

Abstract

The utility model relates to the technical field of electronic devices, and discloses a multifunctional test tool for a circuit board, which comprises a base, a pressing plate, a bottom circuit board, a mounting plate, an M4X20 single-thread insulation column and an M4X28 single-thread insulation column, the bottom circuit board is arranged above the base and is connected with the base through the M4X20 single-thread insulation column, and the mounting plate is connected with the M4X28 single-thread insulation column through the M4X28 single-thread insulation column. The mounting plate is arranged above the bottom circuit board, the mounting plate is connected with the bottom circuit board through an M4X28 single-thread insulation column, the inner side of the base is provided with a rivet nut, the inner side of the rivet nut is in threaded connection with an M6X16 hexagon socket cap screw, the pressing plate is dynamically connected with the base through the rivet nut and the M6X16 hexagon socket cap screw, and the pressing plate is in threaded connection with the bottom circuit board through the M4X28 single-thread insulation column. According to the multifunctional test tool for the circuit board, the pressing plate is rotated and pressed downwards until the pressing plate and the base are buckled and immovable, at the moment, the pins of the circuit board to be tested are in good contact with the probes and are not loosened, the power supply is connected, and the function of the circuit board to be tested can be tested.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, and particularly relates to a multi-functional test tooling for a circuit board. Background Technique

[0002] A circuit board, also known as a printed circuit board, is used to realize the mutual connection between electronic components. The circuit board has a high degree of integration, which is conducive to the transformation of products towards high precision and miniaturization. Circuit board testing is a process of detecting and verifying the functions and performances of circuit boards.

[0003] Traditional circuit board testing uses a multimeter and an oscilloscope to test the pins of components on the circuit board. By measuring the voltage and current at both ends of the components, it is determined whether the circuit board is qualified. However, due to the excessive number of components, the testing work is cumbersome and the workload is huge. Manual execution has low efficiency, and manual operation may cause unstable pin connections, resulting in missed inspections and misjudgments. Content of the Utility Model

[0004] The purpose of the utility model is to provide a multi-functional test tooling for a circuit board to solve the problems in the above-mentioned background technique that traditional circuit board testing uses a multimeter and an oscilloscope to test the pins of components on the circuit board. By measuring the voltage and current at both ends of the components, it is determined whether the circuit board is qualified. However, due to the excessive number of components, the testing work is cumbersome and the workload is huge. Manual execution has low efficiency, and manual operation may cause unstable pin connections, resulting in missed inspections and misjudgments.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A multi-functional test tooling for a circuit board, including a base, a pressing plate, a bottom circuit board, a mounting plate, M4X20 single-threaded insulating columns, and M4X28 single-threaded insulating columns. The bottom circuit board is arranged above the base, and the bottom circuit board is connected to the base through the M4X20 single-threaded insulating columns. The mounting plate is arranged above the bottom circuit board, and the mounting plate is connected to the bottom circuit board through the M4X28 single-threaded insulating columns. A rivet nut is installed inside the base, and an M6X16 socket head cap screw is threadedly connected inside the rivet nut. The pressing plate is dynamically connected to the base through the rivet nut and the M6X16 socket head cap screw.

[0006] Preferably, the base, the bottom circuit board, the mounting plate, and the pressing plate are integrally in a four-layer structure from bottom to top, and the structures of each layer are connected through single-threaded insulating columns.

[0007] Preferably, downward bending structures are arranged on both sides of the bottom of the base, and two through holes are opened outside the bending structures.

[0008] Preferably, probes are installed inside the bottom circuit board, and single-threaded insulating columns are installed inside the pressing plate.

[0009] Preferably, three corresponding slots are provided on the outside of the mounting plate.

[0010] Preferably, bending openings are provided on the reverse sides of the pressing plate and the base, and bending structures are provided on the front sides of the pressing plate and the base.

[0011] Preferably, a window and an open space are provided in the left half of the pressing plate.

[0012] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0013] First, the present utility model connects the bottom circuit board to the base through an M4X20 single-thread insulating column, then connects the mounting plate to the bottom circuit board through an M4X28 single-thread insulating column, and then dynamically connects the pressing plate to the base through a rivet nut and an M6X16 hexagon socket head cap screw, so that the pressing plate can be flipped and fixed through the bending structure on the front side. Then, the pressing plate is lifted and flipped backward to open, and then three circuit boards to be tested are placed into the test fixture in the order of the left display module, the middle control module, and the right power module, so that three pieces can be detected at a time, improving the work efficiency. Then, the pressing plate is rotated and pressed down until the pressing plate and the base are buckled and immovable. At this time, the pins of the circuit board to be tested are in good contact with the probes and do not loosen. After connecting the power supply, the functions of the circuit board to be tested can be tested. After the test is completed, the pressing plate is opened and the circuit board to be tested is taken out to complete the test operation, achieving the effects of being convenient for fixing and improving the work efficiency.

[0014] Second, the present utility model provides three corresponding slots on the outside of the mounting plate, so that three circuit boards can be tested at one time, improving the detection efficiency. Description of the Drawings

[0015] Figure 1 is an overall structural schematic diagram of a multi-functional test fixture for a circuit board;

[0016] Figure 2 is a structural schematic diagram of the pressing plate;

[0017] Figure 3 is a structural schematic diagram of the pressed state of a multi-functional test fixture for a circuit board.

[0018] Wherein: 1. Base; 2. M4X20 single-thread insulating column; 3. Bottom circuit board; 4. M4X28 single-thread insulating column; 5. Probe; 6. Mounting plate; 7. Rivet nut; 8. M6X16 hexagon socket head cap screw; 9. Pressing plate. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides the following technical solutions:

[0021] Embodiment 1

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 A multi-functional test tooling for a circuit board, including a base 1, a pressing plate 9, a bottom circuit board 3, a mounting plate 6, an M4X20 single-threaded insulating column 2, and an M4X28 single-threaded insulating column 4. The bottom circuit board 3 is arranged above the base 1. The bottom circuit board 3 is connected to the base 1 through the M4X20 single-threaded insulating column 2. The mounting plate 6 is arranged above the bottom circuit board 3. The mounting plate 6 is connected to the bottom circuit board 3 through the M4X28 single-threaded insulating column 4. A rivet nut 7 is installed inside the base 1. An M6X16 socket head cap screw 8 is threadedly connected inside the rivet nut 7. The pressing plate 9 is dynamically connected to the base 1 through the rivet nut 7 and the M6X16 socket head cap screw 8.

[0023] Through the above technical solutions, at this time, the bottom circuit board 3 is connected to the base 1 through the M4X20 single-threaded insulating column 2, then the mounting plate 6 is connected to the bottom circuit board 3 through the M4X28 single-threaded insulating column 4, and then the pressing plate 9 is dynamically connected to the base 1 through the rivet nut 7 and the M6X16 socket head cap screw 8, so that the pressing plate 9 can be flipped and fixed through the bending structure on the front side. Then, the pressing plate 9 is lifted and flipped backward to open. Then, three circuit boards to be tested are placed into the test tooling in the order of the left display module, the middle control module, and the right power module on the right in sequence, so that three pieces can be detected at a time, improving the work efficiency. Then, the pressing plate 9 is rotated back and pressed down until the pressing plate 9 and the base 1 are buckled and immovable. At this time, the pins of the circuit board to be tested are in good contact with the probe 5 and do not loosen. After connecting the power supply, the functions of the circuit board to be tested can be tested. After the test is completed, the pressing plate 9 is opened, and the circuit board to be tested is taken out to complete the test operation, achieving the effects of being convenient for fixing and improving work efficiency.

[0024] Specifically, the base 1, the bottom circuit board 3, the mounting plate 6, and the pressing plate 9 are integrally in a four-layer structure from bottom to top, and the structures of each layer are connected through single-threaded insulating columns.

[0025] Through the above technical solution, the structures of each layer are connected by single-thread insulating columns, so that a relatively large intermediate gap can be formed, which is helpful for heat dissipation during testing.

[0026] Specifically, downward bending structures are provided on both sides of the bottom of the base 1, and two through holes are opened on the outside of the bending structures.

[0027] Through the above technical solution, the two through holes can be used to fix the tooling on the workbench with screws.

[0028] Specifically, a probe 5 is installed inside the bottom circuit board 3, and a single-thread insulating column is installed inside the pressing plate 9.

[0029] Through the above technical solution, the circuit connection of the circuit board to be tested can be carried out through the probe 5, and through the single-thread insulating column, after being installed in place, the circuit board to be tested can be pressed tightly against the probe 5 to ensure the reliability of the electrical connection.

[0030] Specifically, three corresponding slots are opened on the outside of the mounting plate 6.

[0031] Through the above technical solution, three circuit boards can be tested at one time, improving the detection efficiency.

[0032] Specifically, bending openings are provided on the reverse sides of the pressing plate 9 and the base 1, and bending structures are provided on the front sides of the pressing plate 9 and the base 1.

[0033] Through the above technical solution, the blind rivet nut 7 and the M6X16 hexagon socket head cap screw 8 can dynamically connect the pressing plate 9 and the base 1 through the bending openings, facilitating the flipping of the pressing plate 9, and then through the bending structure, it can be fixed in place after being pressed down.

[0034] Specifically, a window and an open space are provided in the left half of the pressing plate 9.

[0035] Through the above technical solution, the key module on the circuit board to be tested can be contacted during debugging, and the circuit board of the display module can be observed, which is convenient for testing the functions of the circuit board.

[0036] In use, the bottom circuit board 3 is connected to the base 1 through the M4X20 single-thread insulating column 2, then the mounting plate 6 is connected to the bottom circuit board 3 through the M4X28 single-thread insulating column 4, and then the pressing plate 9 is dynamically connected to the base 1 through the rivet nut 7 and the M6X16 socket head cap screw 8, so that the pressing plate 9 can be flipped and fixed through the bending structure on the front. Then, the pressing plate 9 is lifted and flipped backward to open. Then, the three circuit boards to be tested are placed into the test fixture in the order of the left display module, the middle control module, and the right power module, so that three pieces can be detected at a time, improving work efficiency. Then, the pressing plate 9 is rotated and pressed down until the pressing plate 9 and the base 1 are buckled and immovable. At this time, the pins of the circuit board to be tested are in good contact with the probe 5 and do not loosen. After connecting the power supply, the functions of the circuit board to be tested can be tested. After the test is completed, the pressing plate 9 is opened and the circuit board to be tested is taken out to complete the test operation, achieving the effect of facilitating fixation and improving work efficiency.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits, and the scope is defined by the appended claims and their equivalents.

Claims

1. A multi-functional test tooling for circuit boards, comprising a base (1), a pressing plate (9), a bottom circuit board (3), a mounting plate (6), M4X20 single-threaded insulating posts (2) and M4X28 single-threaded insulating posts (4), characterized in that, The bottom circuit board (3) is arranged above the base (1). The bottom circuit board (3) is connected to the base (1) through M4X20 single-thread insulating posts (2). The mounting plate (6) is arranged above the bottom circuit board (3). The mounting plate (6) is connected to the bottom circuit board (3) through M4X28 single-thread insulating posts (4). A rivet nut (7) is installed inside the base (1). An M6X16 socket head cap screw (8) is threadedly connected inside the rivet nut (7). The pressing plate (9) is dynamically connected to the base (1) through the rivet nut (7) and the M6X16 socket head cap screw (8).

2. The multifunctional test tooling for a circuit board according to claim 1, wherein: The base (1), the bottom circuit board (3), the mounting plate (6) and the pressing plate (9) as a whole form a four-layer structure from bottom to top, and each layer structure is connected through single-thread insulating posts.

3. The multifunctional test tooling for a circuit board according to claim 2, wherein: Both sides of the bottom of the base (1) are provided with downward bending structures, and two through holes are opened outside the bending structures.

4. The multifunctional test tooling for a circuit board according to claim 1, characterized in that: Probes (5) are installed inside the bottom circuit board (3), and single-thread insulating posts are installed inside the pressing plate (9).

5. The multifunctional test tooling for a circuit board according to claim 1, wherein: Three corresponding slots are opened outside the mounting plate (6).

6. The multi-functional test tooling for a circuit board according to claim 1, characterized in that: Bending openings are opened on the reverse sides of the pressing plate (9) and the base (1), and bending structures are arranged on the front sides of the pressing plate (9) and the base (1).

7. A multi-functional test tooling for circuit boards according to claim 1, characterized in that: A window and an open space are opened in the left half of the pressing plate (9).

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