PCBA function test equipment

Abstract

The utility model provides a kind of PCBA function test equipment, including rack, the top of the rack is equipped with antenna mounting plate for installing several communication antennas, the antenna mounting plate below is equipped with multilayer frame, each layer frame is equipped with multiple fixtures, and the fixture is used to load PCBA to be measured;The side of the rack is equipped with power supply and display control unit, the power supply is for PCBA to be measured and display control unit power supply, and the display control unit is used to carry out batch testing to PCBA, and display test result.The utility model is equipped with multilayer frame rack by design, and multiple fixtures for testing PCBA are set in each layer frame, and multiple PCBAs are tested simultaneously by display control unit and power supply unit on the side of the rack, without PCBA assembly to terminal product to test, greatly reduce the test cycle of PCBA, greatly improve the efficiency of PCBA test.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, and in particular to a PCBA functional testing device. Background Technology

[0002] PCBA (Printed Circuit Board Assembly) is the core hardware component of electronic devices, enabling control, communication, and data acquisition. Its reliability directly determines the performance and stability of the final product. In industrial production, PCBAs undergo rigorous functional testing to ensure that each module (such as power conversion, 4G communication, positioning, remote control / signaling / telemetry, etc.) operates normally under simulated real-world conditions.

[0003] The traditional testing process commonly used in the industry is as follows: the PCBA is installed in the complete product casing, and after powering on, it simulates user usage scenarios to perform functional verification for more than 24 consecutive hours. Although this method can cover the basic functional testing of the PCBA, a single test requires the resources of the entire machine, each batch can only test a small number of PCBAs, and after a fault is repaired, the complete testing process must be repeated. This results in problems such as low testing efficiency and long testing cycles, and cannot meet the needs of large-scale testing. Utility Model Content

[0004] This invention proposes a PCBA functional testing device, which solves the problems of low testing efficiency and long testing cycle that exist in the existing technology using traditional PCBA testing methods.

[0005] The technical solution of this utility model is implemented as follows: This utility model provides a PCBA functional testing device, including a rack. The top of the rack is provided with an antenna mounting plate for mounting a plurality of communication antennas. Below the antenna mounting plate is a multi-layer frame, and each layer of the frame is provided with a plurality of fixtures for loading the PCBA under test. A power supply and display control unit are provided on one side of the rack. The power supply supplies power to the PCBA under test and the display control unit. The display control unit is used to perform batch testing on the PCBA and display the test results.

[0006] Specifically, the fixture is provided with several test areas for loading PCBAs under test. Each test area is provided with several probe mounting positions for mounting probes. The probes are connected to the power supply and display control unit via wires to supply power to the PCBAs under test and to transmit the test data of the PCBAs under test to the display control unit.

[0007] Furthermore, the test area includes a large test area and a small test area. The large test area is used to load the main PCBA under test, and the small test area is used to load the extended PCBA under test. The large test area and the small test area are connected by a wire harness.

[0008] Furthermore, the fixture is provided with a wire-passing hole, one end of the wire harness is connected to the probe of the large test area, and the other end passes through the wire-passing hole and is connected to the extended PCBA of the small test area through a terminal.

[0009] Specifically, the fixture is provided with several antenna mounting positions for mounting GPS antennas, and the lead terminals of the GPS antennas are connected to the PCBA under test.

[0010] Furthermore, the GPS antennas located on different layers of the frame are installed in a staggered arrangement through antenna mounting positions.

[0011] Specifically, clearance holes are provided between adjacent fixtures for the lead wires of several communication antennas to pass through and connect to the corresponding PCBA on the lower frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model designs a rack with a multi-layer frame and sets multiple fixtures for testing PCBAs in each layer of the frame. Multiple PCBAs can be tested simultaneously through the display control unit and power supply unit on one side of the rack. There is no need to assemble the PCBAs onto the end product for testing, which greatly reduces the PCBA testing cycle and significantly improves the efficiency of PCBA testing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the external structure of a PCBA functional testing device according to the present invention; Figure 2 This is a schematic diagram of the structure of the fixture in an embodiment of this utility model; In the diagram: 1. Rack; 2. Antenna mounting plate; 3. Frame; 4. Fixture; 5. Display control unit; 6. Probe mounting position; 7. Large test area; 8. Small test area; 9. Cable guide hole; 10. Antenna mounting position; 11. Clearance hole. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] Reference Figure 1 , 2 This utility model provides a PCBA functional testing device, including a rack 1. The top of the rack 1 is provided with an antenna mounting plate 2 for mounting several communication antennas. Below the antenna mounting plate 2, there is a multi-layer frame 3. Each layer of the frame 3 is provided with multiple fixtures 4. The fixtures 4 are used to load PCBAs under test (each group of PCBAs contains a CPU programmable control board, a remote signaling module, a remote control module, a telemetry module, a power DC-DC conversion module, a 4G communication module, a GPS positioning module, etc.). A power supply and display control unit 5 is provided on one side of the rack 1. The power supply provides power to the PCBAs under test and the display control unit 5. The display control unit 5 is used to perform batch testing on the PCBAs and display the test results.

[0017] In the specific implementation process, the display control unit 5 in this embodiment is an industrial display screen (touch screen), and its host is equipped with PCBA testing software (an ERP platform is used in this embodiment, but other PCBA testing software can also be used in the specific implementation process), which sends test instructions to each PCBA through the industrial display screen.

[0018] Specifically, such as Figure 2 As shown, the fixture 4 is provided with several test areas (recessed areas for positioning and accommodating the PCBA under test) for loading the PCBA under test. The test areas are provided with several probe mounting positions 6 for mounting probes (including probes for power supply and probes for data transmission). The probes are connected to the power supply and display control unit 5 through wires for powering the PCBA under test and transmitting the test data of the PCBA under test to the display control unit 5.

[0019] Furthermore, such as Figure 2 As shown, the test area includes a large test area 7 and a small test area 8. The large test area 7 is used to load the main PCBA under test, and the small test area 8 is used to load the extended PCBA under test, which facilitates the testing of PCBAs with extended functions. The large test area 7 and the small test area 8 are connected by a wire harness.

[0020] Furthermore, such as Figure 2As shown, the fixture 4 is provided with a wire hole 9. One end of the wire harness is connected to the probe of the large test area 7, and the other end passes through the wire hole 9 and is connected to the extended PCBA of the small test area 8 through a terminal. The probe mounting position 6 is set in the large test area 7. This design can reduce the number of times the wire harness is plugged in and out. During installation and disassembly, it is only necessary to plug the lead terminal of the probe of the large test area 7 into the PCBA of the small test area 8.

[0021] Specifically, such as Figure 2 As shown, the fixture 4 is provided with a plurality of antenna mounting positions 10 for mounting GPS antennas. The lead wire terminals of the GPS antennas are connected to the PCBA under test. In this embodiment, the antenna mounting positions 10 are arranged in an array, and multiple GPS antennas can be mounted along the width direction of the frame 3.

[0022] Furthermore, the GPS antennas located on different layers of frame 3 are installed in a staggered manner through antenna mounting positions 10. By staggering the GPS antennas on the upper and lower layers, mutual interference between antenna signals can be avoided.

[0023] Specifically, such as Figure 2 As shown, there are clearance holes 11 between adjacent fixtures 4, which are used for the lead wires of several communication antennas to pass through and connect to the corresponding PCBA on the lower frame 3, so as to facilitate the connection of the lead wires of the communication antennas to each layer of PCBA and avoid the wire harness being long and messy.

[0024] The method of using the testing equipment of this utility model is as follows: First, install the PCBA components under test into the test areas of the corresponding fixtures 4. Then, pass the leads of each communication antenna on the antenna mounting plate 2 through the clearance holes 11 and connect them to the corresponding PCBAs on each layer frame 3 through terminals. Then, connect the large test area 7 and the small test area 8 on each fixture 4 through wire harnesses and terminals. Then, connect the leads of the GPS antennas on each fixture 4 to the corresponding PCBAs through terminals. Then, power is activated for the corresponding layer based on the number of layers used. Power is supplied to the PCBA in each test area through wires and probes. After the PCBA is powered on, the PCBA board program is started and a communication link is established with the test platform through the 4G module. Then, according to the test platform, the test time is set, and the communication and positioning stability, remote control, remote signaling, and telemetry power supply of the PCBA's power DC-DC conversion module and 4G communication module are tested within the test time. The industrial display screen shows the test results of the PCBA being tested in real time through the ERP platform interface. The ERP platform performs fault judgment on the test data uploaded by the PCBA board within 24 hours according to the set judgment conditions and outputs the judgment results. Then, turn off the corresponding power supply, disconnect the PCBA connection harness, replace it with the next batch of PCBAs to be tested, and repeat the cycle.

[0025] The testing equipment of this utility model has a total of 6-layer frame 3, with 3 fixtures 4 installed on each layer of frame 3. Each fixture 4 can test 4 PCBAs at the same time. The testing equipment can test 72 PCBAs at the same time, which greatly improves the testing efficiency. If a PCBA fault is detected during the test, the corresponding faulty PCBA can be removed for repair. After repair, it can be installed back on the fixture 4 for continued testing. Compared with the traditional method of installing PCBAs on the end product for testing, the testing cycle is greatly reduced.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 PCBA functional testing device, characterized in that, The system includes a rack (1), with an antenna mounting plate (2) on top for mounting several communication antennas. Below the antenna mounting plate (2) are multiple frames (3), with multiple fixtures (4) on each frame (3). The fixtures (4) are used to load the PCBA under test. A power supply and display control unit (5) is provided on one side of the rack (1). The power supply provides power to the PCBA under test and the display control unit (5). The display control unit (5) is used to perform batch testing on the PCBA and display the test results.

2. The PCBA functional testing equipment as described in claim 1, characterized in that, The fixture (4) is provided with several test areas for loading the PCBA under test. The test areas are provided with several probe mounting positions (6) for mounting probes. The probes are connected to the power supply and display control unit (5) through wires to supply power to the PCBA under test and to transmit the test data of the PCBA under test to the display control unit (5).

3. The PCBA functional testing equipment as described in claim 2, characterized in that, The test area includes a large test area (7) and a small test area (8). The large test area (7) is used to load the main PCBA under test, and the small test area (8) is used to load the extended PCBA under test. The large test area (7) and the small test area (8) are connected by a wire harness.

4. The PCBA functional testing equipment as described in claim 3, characterized in that, The fixture (4) is provided with a wire hole (9). One end of the wire harness is connected to the probe of the large test area (7), and the other end passes through the wire hole (9) and is connected to the extended PCBA of the small test area (8) through a terminal.

5. The PCBA functional testing equipment as described in claim 1, characterized in that, The fixture (4) is provided with several antenna mounting positions (10) for installing GPS antennas, and the lead wire terminals of the GPS antennas are connected to the PCBA under test.

6. The PCBA functional testing equipment as described in claim 5, characterized in that, GPS antennas located on different layers of the frame (3) are installed in a staggered arrangement through antenna mounting positions (10).

7. The PCBA functional testing equipment as described in claim 1, characterized in that, A clearance hole (11) is provided between adjacent fixtures (4) for the lead wires of several communication antennas to pass through and connect to the corresponding PCBA on the lower frame (3).

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