PCBA calibration comprehensive test device and test method

Abstract

The invention discloses a PCBA (Printed Circuit Board Assembly) calibration comprehensive test device and method, the test device is used for testing a PCBA with N test seats, the test device comprises a comprehensive test module and a switching module, the comprehensive test module is provided with N test ports, and N is an integer greater than or equal to 2; the switching module is provided with N switchers and N connectors, each connector is provided with a first connecting port and N second connecting ports, the first connecting ports are connected with the test ports in a one-to-one correspondence mode, the second connecting ports are connected with test seats of a PCBA in a one-to-one correspondence mode, each switcher is correspondingly connected with the controller and the corresponding connector, and each connector is connected with the controller and the corresponding connector in a one-to-one correspondence mode. And the switcher is used for switching the first connection port to be connected with the corresponding second connection port according to a control signal input by the controller. According to the PCBA calibration comprehensive test device, the switching module is used for connecting a plurality of PCBAs, so that the comprehensive test module can test the PCBAs at the same time, the test efficiency is greatly improved, and the productivity is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of PCBA calibration comprehensive test, and in particular to a PCBA calibration comprehensive test device and a test method. Background Art

[0002] There are many RF components in the mobile phone, and there must be differences in hardware performance between the components, resulting in performance differences between each mobile phone. Therefore, it is necessary to calibrate and test each mobile phone PCBA to eliminate the performance differences between mobile phones as much as possible, and to conduct comprehensive tests to further verify the effect of the calibration test;

[0003] With the application of 5G mobile phone MIMO technology (multiple input and multiple output), general 5G mobile phones will be equipped with 8 RF test sockets, and the mainstream comprehensive test instrument CMW100 is equipped with 8 test ports. Therefore, in the existing mobile phone PCBA calibration comprehensive test solution, Figure 1 As shown, the eight test sockets of a PCBA are connected to the eight ports of the comprehensive tester in sequence. One cabinet can only test one PCBA motherboard, and the mobile phone PCBA can only test one of the test sockets at a time. This test scheme results in only one test port of the comprehensive tester participating in the test in any time period of the test, and the other seven ports are idle. The comprehensive tester supports 8-port synchronous testing, which results in extremely low utilization of the comprehensive tester, low overall test efficiency of the mobile phone PCBA, and high test cost. Summary of the invention

[0004] The purpose of the present invention is to provide a PCBA calibration comprehensive test device and test method, which utilizes a transfer module to connect multiple PCBAs so that the comprehensive test module can test multiple PCBAs at the same time, which is beneficial to greatly improve the test efficiency and increase the production capacity.

[0005] In order to achieve the above object, the present invention discloses a PCBA calibration comprehensive test device, which is used to test a PCBA having N test sockets, and comprises:

[0006] A comprehensive testing module, wherein the comprehensive testing module is provided with N test ports, wherein N is an integer greater than or equal to 2;

[0007] The adapter module is provided with N switches and N connectors, each of the connectors is provided with a first connection port and N second connection ports, the first connection port is connected with the test port in a one-to-one correspondence, the second connection port is connected with a test socket of a PCBA in a one-to-one correspondence, a switch is respectively connected with a controller and a connector in a corresponding manner, and the switch is used to switch the connection between the first connection port and the corresponding second connection port according to a control signal input by the controller.

[0008] Optionally, the connector is provided with multiple single-pole multi-throw switches.

[0009] Optionally, the connector is provided with multiple switch units corresponding to the multiple second connection ports, each of the switch units is provided with a control end, the control end is connected to the switch, and the switch unit is used to open or close according to the high level signal or low level signal received by the control end to connect the corresponding second connection port to the first connection port.

[0010] Optionally, each PCBA is provided with 8 test sockets, and each connector is provided with 8 second connection ports and 8 switch units.

[0011] Optionally, the switch is a MIPI register, each of the switch is provided with a MIPI serial port connected to the controller and multiple switching ports, and the switch is used to control one of the switching ports to output a high level signal and the other switching ports to output a low level signal according to a control signal input by the MIPI serial port.

[0012] Optionally, each of the connectors is provided with eight of the second connection ports, and the switch is correspondingly provided with eight of the switching ports.

[0013] Optionally, the comprehensive testing module is provided with 8 test ports, and the connector and the switch are provided with 8 ports.

[0014] In order to achieve the above object, the present invention discloses a method for testing a PCBA using the above PCBA calibration comprehensive test device, the test method comprising:

[0015] Controlling the switch to switch the connection between the first connection port of each connector and a second connection port;

[0016] The control integrated test module sends a test signal to each connector through a test port, so that the PCBA receives and records the test signal through a test socket;

[0017] Control the switch to switch the first connection port of each connector to connect with another second connection port;

[0018] Controlling the comprehensive test module to send a test signal to each connector through the test port, so that the PCBA receives and records the test signal through another test socket;

[0019] Repeat switching and sending the test signal until the PCBA receives and records the test signal through all test sockets.

[0020] Further, the switch is a MIPI register, and the “controlling the switch to switch the connection between the first connection port of each connector and a second connection port” includes:

[0021] Confirm the test socket of each PCBA test and the corresponding second connection port;

[0022] According to the confirmed second connection port, confirm the register value corresponding to each of the switches;

[0023] The corresponding register value is sent to each of the switches according to the register number of the switch.

[0024] Furthermore, the test sockets of each PCBA are tested in the same order, and when the same test socket of each PCBA is tested, the same register value is sent to each switch.

[0025] The present invention is provided with an adapter module to connect a comprehensive testing module and multiple PCBAs, the comprehensive testing module is provided with multiple test ports, the adapter module is provided with a switch and multiple connectors, the connector is connected to the test port through a first connection port, and is connected to each test socket of the PCBA through multiple second connection ports, the switch is connected to a controller and each connector, and the switch switches the corresponding second connection port to be connected to the first connection port according to a control signal of the controller, so that the comprehensive testing module can test multiple PCBAs at the same time, and test different test sockets of the PCBA in sequence, which is conducive to greatly improving the test efficiency and increasing the production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the existing PCBA calibration comprehensive test device.

[0027] Figure 2 It is a structural schematic diagram of a PCBA calibration comprehensive test device according to an embodiment of the present invention.

[0028] Figure 3 1 is a circuit structure diagram of a PCBA calibration comprehensive test device according to an embodiment of the present invention.

[0029] Figure 4 This is a signal diagram of a control switch and a connector in a PCBA calibration comprehensive test device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0031] See also Figures 2 to 4 The present invention discloses a PCBA calibration comprehensive test device, which is used to test a PCBA having N test sockets ANT, and comprises:

[0032] Comprehensive test module 1, the comprehensive test module 1 is provided with N test ports RF, wherein N is an integer greater than or equal to 2;

[0033] The adapter module 2 is provided with N switches 21 and N connectors 22, each connector 22 is provided with a first connection port 221 and N second connection ports 222, the first connection port 221 is connected with the test port RF in a one-to-one correspondence, the second connection port 222 is connected with the test socket ANT of a PCBA in a one-to-one correspondence, a switch 21 is respectively connected with the controller and a connector 22, and the switch 21 is used to switch the connection between the first connection port 221 and the corresponding second connection port 222 according to the control signal input by the controller.

[0034] The present invention is provided with a transfer module 2 to connect a comprehensive test module 1 and multiple PCBAs. The comprehensive test module 1 is provided with multiple test ports RF. The transfer module 2 is provided with a switch 21 and multiple connectors 22. The connector 22 is connected to the test port RF through a first connection port 221, and is connected to each test socket ANT of the PCBA through multiple second connection ports 222. The switch 21 is connected to a controller and each connector 22. The switch 21 switches the corresponding second connection port 222 to be connected to the first connection port 221 according to a control signal of the controller, so that the comprehensive test module 1 can test multiple PCBAs at the same time, and test different test sockets ANT of the PCBA in sequence, which is conducive to greatly improving the test efficiency and increasing the production capacity.

[0035] See also Figures 2 to 4 The connector 22 is provided with multiple single-pole multi-throw switches.

[0036] Each calibration / comprehensive test station of the comprehensive test module 1 is equipped with a single-pole multi-throw switch. Although the cost is slightly increased, the production line test efficiency can be greatly improved.

[0037] Optionally, the comprehensive test module 1 is provided with 8 test ports RF, the connectors 22 and the switches 21 are provided with 8, each PCBA is provided with 8 test sockets ANT, and each connector 22 is provided with 8 second connection ports 222 .

[0038] Specifically, in this embodiment, a single-pole 8-throw switch SP8T is used as the connector 22. The single-pole 8-throw switch SP8T is an active device with low insertion loss and negligible impact on PCBA performance. It needs to be used in conjunction with power supply and control logic, but is not limited to this. In some embodiments, an octal power device can also be used as the connector 22.

[0039] Specifically, in this embodiment, when calibrating the comprehensive test, the eight test sockets ANT of the PCBA are connected one by one to the eight second connection ports 222 of a single-pole eight-throw switch SP8T, and the comprehensive test module 1 is provided with eight test ports RF. The common end of the single-pole eight-throw switch SP8T is the first connection port 221, which is connected to one of the test ports RF of the comprehensive test module 1. Therefore, after using eight connectors 22 to connect eight PCBAs, the eight test ports RF of the comprehensive tester can synchronously test different PCBAs, which is conducive to improving the test efficiency by eight times.

[0040] See also Figures 2 to 4 The connector 22 is provided with multiple switch units corresponding to the multiple second connection ports 222, each switch unit is provided with a control end, the control end is connected to the switch 21, and the switch unit is used to open or close according to the high level signal or low level signal received by the control end to connect the corresponding second connection port 222 with the first connection port 221.

[0041] Optionally, each PCBA is provided with 8 test sockets ANT, and each connector 22 is provided with 8 second connection ports 222 and 8 switch units.

[0042] The connector 22 cooperates with the switch 21 to form a MiPi logic control development board with 8 inputs and 64 outputs, so that the test port RF of the comprehensive test module 1 can test 8 test sockets ANT of a mobile phone PCBA, which can effectively improve the test efficiency.

[0043] Specifically, in this embodiment, Figure 4 As shown, during the calibration comprehensive test, the switch 21 outputs a high-level signal to the corresponding control end according to the signal input by the controller to open the corresponding switch unit, and outputs a low-level signal to the remaining control ends to close the remaining switch units, so that the corresponding second connection port 222 is connected to the first connection port 221, and the test signal output by the comprehensive test module 1 is transmitted to the test socket ANT corresponding to the PCBA, but is not limited to this.

[0044] See also Figures 2 to 4 The switch 21 is a MIPI register. The switch 21 is provided with a MIPI serial port 211 and a plurality of switch ports 212 connected to the controller. The switch 21 is used to control one of the switch ports 212 to output a high level signal and the other switch ports 212 to output a low level signal according to a control signal input from the MIPI serial port 211.

[0045] Optionally, each connector 22 is provided with eight second connection ports 222 , and the switch 21 is correspondingly provided with eight switch ports 212 .

[0046] Specifically, in this embodiment, the test tool is used as a controller to control the switching logic of the single-pole 8-throw switch SP8T through the MIPI serial port 211. When a test socket ANT of the PCBA needs to be tested, the first connection port 221 of the single-pole 8-throw switch SP8T is controlled to be connected with the corresponding second connection port 222, and it is also necessary to control the test port RF connected to the corresponding first connection port 221 of the comprehensive test module 1 to send a test signal, but it is not limited to this.

[0047] See also Figures 2 to 4 The present invention also discloses a method for testing PCBA using the above PCBA calibration comprehensive test device, the test method comprising:

[0048] 101 , controlling the switch 21 to switch the connection between a first connection port 221 of each connector 22 and a second connection port 222 ;

[0049] 102. Control the comprehensive test module 1 to send a test signal to each connector 22 through the test port RF, so that the PCBA receives and records the test signal through a test socket ANT;

[0050] 103 , controlling the switch 21 to switch the first connection port 221 of each connector 22 to be connected to another second connection port 222 ;

[0051] 104. Control the comprehensive test module 1 to send a test signal to each connector 22 through the test port RF, so that the PCBA receives and records the test signal through another test socket ANT;

[0052] 105. Repeat switching and sending the test signal until the PCBA receives and records the test signal through all the test sockets ANT.

[0053] Furthermore, the switch 21 is a MIPI register, and “controlling the switch 21 to switch the connection between the first connection port 221 of each connector 22 and a second connection port 222” includes:

[0054] 1011. Confirm the test socket ANT and the corresponding second connection port 222 of each PCBA test;

[0055] Specifically, in this embodiment, when using the test script to test the PCBA, it is first necessary to read the test socket (one of the test sockets ANT1 to ANT8) used by each PCBA to send and receive signals. After confirming the test socket X, find the corresponding connector 22 and its controlled switch 21 (registers Reg0 to Reg7) to open the corresponding physical path through the MIPI signal control switch 21.

[0056] 1012. According to the confirmed second connection port 222, confirm the register value corresponding to each switch 21;

[0057] 1013. Send the corresponding register value to each switch 21 according to the register number of the switch 21.

[0058] Specifically, in this embodiment, in the process of defining the test logic of each signal of the mobile phone in the test script, the above-mentioned control logic about the register is added, and the control logic includes the power supply voltage of the adapter module 2, the register number (Reg0~Reg 7) of the switch 21 and the register value (0x01~0x80) of the switch 21.

[0059] Furthermore, the test sockets ANT of each PCBA are tested in the same order, and when the same test socket ANT of each PCBA is tested, the same register value is sent to each switch 21 .

[0060] Specifically, in the present embodiment, each PCBA is tested in the order of test sockets ANT1 to ANT8. Before each test, the corresponding hardware path needs to be opened first. Therefore, when the first test is performed, a control signal of the hexadecimal number 0x01 is sent to each MIPI register through the MIPI serial port 211, and then the TRX1 port of all single-pole 8-throw switches SP8T is opened through each MIPI register, and then the test sockets ANT1 of all PCBAs are RF-connected to the test port of the comprehensive test module 1 through each single-pole 8-throw switch SP8T, and then the signal required for the test is sent through the comprehensive test module 1, and the PCBA receives and records the signal of the test socket ANT1; repeat the above operation, refer to Figure 4 , confirm the register value (0x02~0x80) of each switch 21 during each test, so as to open the TRX2 port to the TRX8 port of the single-pole 8-throw switch SP8T in sequence, and then test the test sockets ANT2 to ANT8 of the PCBA in sequence, but not limited to this.

[0061] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A PCBA calibration and comprehensive testing device, used to test a PCBA with N test sockets, characterized in that: include: A comprehensive testing module, wherein the comprehensive testing module is provided with N test ports, wherein N is an integer greater than or equal to 2; The adapter module is provided with N switches and N connectors, each of the connectors is provided with a first connection port and N second connection ports, the first connection port is connected with the test port in a one-to-one correspondence, the second connection port is connected with a test socket of a PCBA in a one-to-one correspondence, a switch is respectively connected with a controller and a connector in a corresponding manner, and the switch is used to switch the connection between the first connection port and the corresponding second connection port according to a control signal input by the controller.

2. The PCBA calibration comprehensive test device according to claim 1, characterized in that: The connector is provided with a plurality of single-pole multi-throw switches.

3. The PCBA calibration comprehensive test device according to claim 1, characterized in that: The connector is provided with multiple switch units corresponding to the multiple second connection ports, each of the switch units is provided with a control end, the control end is connected to the switch, and the switch unit is used to open or close according to the high level signal or low level signal received by the control end to connect the corresponding second connection port to the first connection port.

4. The PCBA calibration comprehensive test device according to claim 3, characterized in that: Each PCBA is provided with 8 test sockets, and each connector is provided with 8 second connection ports and 8 switch units.

5. The PCBA calibration comprehensive test device according to claim 1, characterized in that: The switch is a MIPI register, and each of the switch is provided with a MIPI serial port connected to the controller and multiple switch ports. The switch is used to control one of the switch ports to output a high level signal and the other switch ports to output a low level signal according to a control signal input from the MIPI serial port.

6. The PCBA calibration comprehensive test device according to claim 5, characterized in that: Each of the connectors is provided with eight of the second connection ports, and the switch is correspondingly provided with eight of the switch ports.

7. The PCBA calibration comprehensive test device according to claim 1, characterized in that: The comprehensive test module is provided with 8 test ports, and the connector and the switch are provided with 8 ports.

8. A method for testing a PCBA using the PCBA calibration and comprehensive testing device according to any one of claims 1 to 7, characterized in that: The test method includes: Controlling the switch to switch the connection between the first connection port of each connector and a second connection port; The control integrated test module sends a test signal to each connector through a test port, so that the PCBA receives and records the test signal through a test socket; Control the switch to switch the first connection port of each connector to connect with another second connection port; Controlling the comprehensive test module to send a test signal to each connector through the test port, so that the PCBA receives and records the test signal through another test socket; Repeat switching and sending the test signal until the PCBA receives and records the test signal through all test sockets.

9. The method for testing a PCBA according to claim 8, characterized in that: The switch is a MIPI register, and the “controlling the switch to switch the connection between the first connection port of each connector and a second connection port” includes: Confirm the test socket of each PCBA test and the corresponding second connection port; According to the confirmed second connection port, confirm the register value corresponding to each of the switches; The corresponding register value is sent to each of the switches according to the register number of the switch.

10. The method for testing PCBA according to claim 9, characterized in that: The test sockets of each PCBA are tested in the same order, and when the same test socket of each PCBA is tested, the same register value is sent to each switch.

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