PCBA welding and performance testing device

Abstract

This utility model discloses a PCBA soldering and performance testing device. The device includes a static testing unit, a power-on testing unit, and a connection unit. The connection unit is used to connect the PCBA under test. The static testing unit includes an analog testing module and a converter module, with the converter module connected between the analog testing module and the connection unit. The power-on testing unit includes a digital testing module, a functional testing module, and a power-on control module. These modules are connected sequentially. When the analog testing module is on, the analog testing module, converter module, and connection unit are connected to form a first test circuit. When the digital testing module is on, the digital testing module, functional testing module, power-on control module, and connection unit are connected to form a second test circuit. This device has relatively low manufacturing cost, a short manufacturing cycle, high modification flexibility, and strong versatility.

Description

Technical Field

[0001] This utility model relates to the field of PCBA testing equipment technology, and in particular to a PCBA soldering and performance testing device. Background Technology

[0002] Currently, the soldering quality and performance testing of rack-mounted PCBAs primarily relies on specialized testing equipment and fixtures. However, the manufacturing cost of these fixtures is relatively high, and the production cycle is lengthy. Typically, test fixtures are created based on the PCB's Gerber file, relying on the contact between test probes and solder joints to complete the testing task. Therefore, the manufacturing precision requirements for these fixtures are extremely high. A single test fixture can only be used to test one specific type of PCBA, and once completed, it cannot be modified. Such fixtures are more suitable for PCBAs with high testing volumes and long product lifecycles.

[0003] In the current field of rack-mount PCBAs, there are many types of PCBAs, each with a relatively small number of units, and the pace of updates and iterations is very rapid. Furthermore, PCBAs typically integrate multiple connectors. These factors combined mean that traditional test fixtures are no longer suitable for testing rack-mount PCBAs. Utility Model Content

[0004] The main objective of this utility model is to provide a PCBA soldering and performance testing device, thereby overcoming the shortcomings of the prior art. To achieve the aforementioned objective, the technical solution adopted by this utility model includes:

[0005] This invention provides a PCBA soldering and performance testing device, including a static testing unit, a power-on testing unit, and a connection unit. The connection unit is used for electrical connection to the PCBA under test. The static testing unit includes an analog testing module and an adapter module, with the adapter module connected between the analog testing module and the connection unit. The power-on testing unit includes a digital testing module, a functional testing module, and a power-on control module, which are sequentially connected.

[0006] When the digital test module is in the off state and the analog test module is in the on state, the analog test module, the adapter module, and the connection unit are connected to form a static test transmission path. When the analog test module is in the off state and the digital test module is in the on state, the digital test module, the functional test module, the power-on control module, and the connection unit are connected to form a power-on test transmission path.

[0007] In some more specific solutions, the connection unit includes a first connection module and a second connection module. The adapter module is connected between the analog test module and the first connection module. The digital test module, the functional test module, the power-on control module, and the second connection module are connected sequentially.

[0008] When the digital test module is in the off state and the analog test module is in the on state, the analog test module, the transfer module, and the first connection module are connected to form a static test transmission path. When the analog test module is in the off state and the digital test module is in the on state, the digital test module, the functional test module, the power-on control module, and the second connection module are connected to form a power-on test transmission path. Preferably, the first connection module and the second connection module are integrated.

[0009] Furthermore, the first connection module is provided with a first docking interface and a first PCBA docking interface. The first docking interface is connected to the adapter module and is used to receive signals from the adapter module. The first PCBA docking interface is connected to the PCBA under test and is used to apply signals to the PCBA under test for static testing.

[0010] Furthermore, the second connection module is provided with a second docking interface and a second PCBA docking interface. The second docking interface is connected to the power-on control module and is used to receive signals from the power-on control module. The second PCBA docking interface is connected to the PCBA under test and is used to apply signals to the PCBA under test for power-on testing.

[0011] Preferably, the first PCBA interface and the second PCBA interface are integrated.

[0012] Furthermore, the simulation test module includes multiple simulation switch boards arranged in parallel, each of which is connected to the adapter module.

[0013] Furthermore, the adapter module includes multiple ribbon cable adapter boards arranged in parallel, each ribbon cable adapter board being connected to an analog switch board, and each ribbon cable adapter board being connected to the first connection module.

[0014] Preferably, the ribbon cable adapter board is provided with a ribbon cable input port and a ribbon cable output port. The ribbon cable input port is connected to the analog switch board, and the ribbon cable output port is connected to the first connection module.

[0015] Furthermore, the digital test module includes a digital switch board and a power supply module. The functional test module is provided with a power input interface, a functional test input interface, and a functional test output interface. The power input interface is connected to the power supply module to supply power to the functional test module. The functional test input interface is connected to the digital switch board, and the functional test output interface is connected to the power-on control module.

[0016] Furthermore, the power-on control module is provided with a power-on control input interface and a power-on control output interface. The power-on control input interface is connected to the function test output interface and is used to receive the DC voltage signal output by the function test module. The power-on control output interface is connected to the second connection module.

[0017] In some more specific solutions, the digital test module and the analog test module are integrated into the test machine.

[0018] Furthermore, the testing equipment also includes an operation module, which is connected to the digital testing module and the analog testing module, and is used to control the digital testing module and the analog testing module to be turned on or off through the testing program.

[0019] Compared with the prior art, the advantages of this utility model include at least the following:

[0020] First, the PCBA soldering and performance testing device provided by this utility model includes an adapter module and a connection unit, enabling effective connection and communication between the testing machine and the PCBA. Different PCBA models only need to be connected through different connector interfaces on the connection unit, thus quickly adapting to the input / output interface requirements of various PCBAs. Furthermore, by adjusting the cable connections and corresponding test procedures, it is possible to test multiple PCBAs, significantly improving the flexibility and efficiency of the testing process, making it particularly suitable for small-batch production and testing scenarios involving a wide variety of PCBAs.

[0021] Secondly, the PCBA soldering and performance testing device provided by this utility model includes a functional testing module and a power-on control module, which effectively solves the problem of precise power-on control of various connector pins on the PCBA.

[0022] Third, the PCBA soldering and performance testing device provided by this utility model only requires the fabrication of a corresponding power-on control module for various different PCBAs, along with the selection of suitable connectors and cables to achieve connection with the PCBA. This effectively reduces manufacturing costs and shortens the overall production cycle. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a PCBA soldering and performance testing device according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the testing machine according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the digital test module and the analog test module integrated into the test machine according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the test cable adapter board according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the functional test box according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the power-on control board according to an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the interface structure in the power-on control board of this utility model embodiment;

[0030] Figure 8 This is a schematic diagram of the structure of the product connecting plate according to an embodiment of the present utility model;

[0031] Figure 9 This is a schematic diagram of the structure of the product connecting plate according to an embodiment of the present utility model;

[0032] Figure 10 This is a schematic diagram of the top layer connection of the product connecting plate according to an embodiment of this utility model;

[0033] Figure 11 This is a schematic diagram of the bottom connection of the product connecting plate according to an embodiment of this utility model;

[0034] Figure 12 This is a schematic diagram of the static test principle of an embodiment of this utility model;

[0035] Figure 13 This is a schematic diagram of the relay test principle for power-on testing according to an embodiment of this utility model;

[0036] Figure 14 This is a schematic diagram of the optocoupler test principle for power-on testing according to an embodiment of this utility model;

[0037] Figure 15 This is a schematic diagram of the power conversion circuit in the transformer test according to an embodiment of the present invention;

[0038] Figure 16 This is a schematic diagram of the signal interface circuit in the transformer testing according to an embodiment of this utility model.

[0039] Figure label:

[0040] 1. Test equipment; 2. Test cable adapter board; 3. Functional test box; 4. Power-on control board; 5. Product connection board; 6. PCBA under test;

[0041] 11. Analog switch board; 12. Digital switch board; 13. Power module; 21. Ribbon cable input port; 22. Ribbon cable output port; 23. Traditional fixture port; 31. Functional test input interface; 32. Power input interface; 33. Functional test output interface; 41. Power-on control input interface; 42. Power-on control output interface; 51. First docking interface; 52. Second docking interface; 53. Main PCBA docking interface. Detailed Implementation

[0042] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0043] Please refer to Figure 1 A PCBA soldering and performance testing device is disclosed. The device mainly consists of three core units: a static testing unit, a power-on testing unit, and a connection unit. The connection unit is further subdivided into a first connection module and a second connection module. The static testing unit comprises an analog testing module and a converter module. The power-on testing unit includes a digital testing module, a functional testing module, and a power-on control module.

[0044] In this design, the first and second connection modules are integrated on the product connection board 5. The digital test module and the analog test module are integrated within the test machine 1. The adapter module is specifically the test cable adapter board 2. The functional test module is specifically the functional test box 3. The power-on control module is specifically the power-on control board 4.

[0045] Please refer to Figures 2-3Within the internal structure of the test bench 1, the analog test module includes multiple analog switch boards 11 arranged in parallel, which are used to emit static test signals. The digital test module includes a digital switch board 12 and a power supply module 13. To ensure effective heat dissipation during prolonged operation, the test bench 1 is equipped with ventilation holes, which facilitate heat dissipation for the multiple analog switch boards 11. The multiple analog switch boards 11 operate independently of each other. The number of analog switch boards 11 is determined based on the specific requirements of the PCBA being tested. For PCBAs with a small number of interfaces, typically only 2-5 analog switch boards 11 are needed for testing. However, for PCBAs with a large number of interfaces, up to a dozen or even more analog switch boards 11 may be required to ensure coverage of all test points. In short, the specific number of analog switch boards 11 is determined based on the actual testing conditions and requirements.

[0046] Please refer to Figure 4 The test cable adapter board 2 includes multiple cable adapter boards arranged in parallel. Each cable adapter board has a cable input port 21 and a cable output port 22 to facilitate the input and output of test signals. These cable adapter boards are merely signal transmission channels and do not participate in any signal processing. The test cable adapter board 2 is also equipped with a conventional clamp port 23, located between the cable input port 21 and the cable output port 22. In actual operation, operators can choose to connect the intermediate conventional clamp port 23 and the cable output port 22 for testing, or use the cable input port 21 and the cable output port 22 for testing. The advantage of this design is that when switching according to actual testing needs, operators do not need to reconnect the test machine 1 and the test cable adapter board 2, thus improving work efficiency.

[0047] Please refer to Figure 5 The functional test box 3 is equipped with a power input interface 32, a functional test input interface 31, and a functional test output interface 33, which enable the functional test box to effectively connect and transmit signals with external devices.

[0048] Please refer to Figures 6-7 The power-on control board 4 is equipped with a power-on control input interface 41 and a power-on control output interface 42. Specifically, the power-on control board 4 is equipped with 12 independent 64-pin connector interfaces. Among them, interfaces 1-7 are grouped together as the power-on control output interface 42, and interfaces 8-12 form another group, namely the power-on control input interface 41.

[0049] When performing power-on control operations on the circuit board under test (PCB), assume the PCB has a 25-pin interface. This 25-pin interface needs to be connected to pins 1-25 of the first 64-pin interface on the power-on control board 4. Pins 1, 8, 9, and 10 of the 25-pin interface require power-on testing. Therefore, pins 1, 8, 9, and 10 of the first 64-pin interface on the power-on control board 4 are directly connected to any four selected pins of the eighth 64-pin interface using wires. This connection method is called a flying wire connection, which essentially establishes a temporary power path.

[0050] Next, by using a specific test program, the functional test box is controlled to supply power to the four pins connected by jumper wires in the eighth 64-pin interface. In this way, the power-on test of pins 1, 8, 9, and 10 in the 25-pin interface of the PCBA under test can be performed, either simultaneously or individually.

[0051] In this solution, due to the varying characteristics of the PCBA circuit interfaces under test (e.g., the number and type of power-on pins on a 25-pin interface may differ), the connection method and power-on pins must be carefully analyzed and determined for each board's circuit interface. Therefore, a custom-designed flying lead connection scheme is necessary to adapt to the specific requirements of the board under test. In short, the power-on control board needs to establish a path using flying leads based on the interface characteristics of the board under test and work with the test program to achieve power-on operation. Each power-on control board is customized according to specific requirements.

[0052] The main function of the power-on control board 4 is to centralize the interface pins of the PCBA under test that require power-on testing and to uniformly control and manage these pins. If the functional test box 3 is directly connected to the product connection board 5, this connection method will limit the functional test box 3 and the product connection board 5 to testing only one specific type of circuit board. To effectively reduce production costs and improve production efficiency, this testing device is versatile, requiring only minimal adjustments or modifications to adapt to different types of circuit boards. Connect the interface pins of the circuit board requiring power-on testing to the power-on control input interface 41, and then connect these power-on pins to the power-on control output interface 42 via jumpers. This allows for power-on operation on these pins. Since different PCBAs under test differ in the interfaces and pins requiring power-on, only these specific power-on pins need to be connected to the power-on control input interface 41 and the power-on control output interface 42. Different power-on control boards need to be configured for different PCBAs under test to meet their respective testing requirements.

[0053] Please refer to Figures 8-11On the product connection board 5, the first connection module is provided with a first docking interface 51 and a first PCBA docking interface, and the second connection module is provided with a second docking interface 52 and a second PCBA docking interface. The first PCBA docking interface and the second PCBA docking interface are integrated into a total PCBA docking interface 53, which can simplify the PCBA docking process and improve work efficiency. Specifically, the first docking interface 51 includes u1 and u2, which are used to connect the test cable adapter board 2. The second docking interface 52 includes u3 and u4, which are used to connect the power-on control board 4. The total PCBA docking interface 53 includes u5-u13, which are used to match and connect different interfaces of different PCBAs under test.

[0054] Next, we will introduce the specific connection relationships:

[0055] For static testing, a 64-pin ribbon cable is used to connect the ribbon cable input port 21 to the analog switch board 11. Next, a 64-pin ribbon cable is used to connect the ribbon cable output port 22 to the first docking interface 51. Then, the main PCBA docking interface 53 is connected to the PCBA 6 under test, thus forming the transmission path for static testing: analog switch board 11, ribbon cable input port 21, ribbon cable output port 22, first docking interface 51, main PCBA docking interface 53, PCBA 6 under test. This path transmits signals to the PCBA 6 under test for static testing. The feedback signal path is: PCBA 6 under test, main PCBA docking interface 53, first docking interface 51, ribbon cable output port 22, ribbon cable input port 21, analog switch board 11. During static testing, the functional test box 3 and the power-on control board 4 do not participate in the testing and can be disconnected by default.

[0056] Regarding power-on testing, the power input interface 32 is connected to the power module 13 to provide the necessary power to the relays in the functional test box 3. Simultaneously, the functional test input interface 31 is connected to the digital switch board 12, and the functional test output interface 33 is connected to the power-on control input interface 41, thus receiving the DC voltage signal output from the functional test box 3. The power-on control output interface 42 is connected to the second docking interface 52, and the main PCBA docking interface 53 is used to connect to the PCBA 6 under test, thus forming the power-on test transmission path: digital switch board 12, functional test input interface 31, functional test output interface 33, power-on control input interface 41, power-on control output interface 42, second docking interface 52, main PCBA docking interface 53, PCBA 6 under test. This path is used to transmit signals to the PCBA 6 under test for power-on testing. The feedback signal path is: PCBA 6 under test, main PCBA docking interface 53, first docking interface 51, ribbon cable output port 22, ribbon cable input port 21, analog switch board 11. During power-on testing, the feedback signal path is the same as in static testing. The analog switch board 11 needs to receive the feedback signal after the PCBA under test is powered on. For example, after powering on a relay of the PCBA under test, the relay outputs 24VDC through a certain interface pin of the PCBA. The analog switch board determines whether the PCBA under test meets the design expectations by measuring whether the voltage on this pin is 24VDC.

[0057] In this solution, the testing equipment also includes an operation module. The operation module is connected to the analog switch board 11 and the digital switch board 12, and its function is to control the analog switch board 11 and the digital switch board 12 to turn on or off through the test program, thereby achieving precise control of the test process.

[0058] The testing process is described below:

[0059] The first type is static testing (short-circuit and open-circuit testing):

[0060] During this test, an analog switch board 11 outputs a signal with a voltage of 0.2V and an internal resistance of 20 ohms. This signal is then transmitted to the pins of the PCBA 6 under test through the ribbon cable input port 21, the ribbon cable output port 22, the first docking interface 51, and the main PCBA docking interface 53. In this process, the ribbon cable input port 21, the ribbon cable output port 22, and the first docking interface 51 serve only as signal transmission channels and do not participate in any signal processing.

[0061] Static testing works by applying a specific DC voltage or current to the pins of the PCBA under test and measuring its impact on DC parameters, thereby determining whether the PCBA meets design expectations. For the principles of short-circuit and open-circuit testing, please refer to [link to relevant documentation]. Figure 12 :

[0062] In the test, RX represents the PCBA under test. The signal is emitted by the analog switch board 11 in test equipment 1, with a voltage of 0.2V and an internal resistance of 20 ohms. Then, the voltage between points 1 and 2 on the PCBA under test is measured using an internal voltmeter. From this measurement, the resistance value of the PCBA under test can be calculated.

[0063] Assume the resistance of the PCBA under test is R. X The voltage on the PCBA under test is V. RX Then the resistance R of the PCBA under test X It can be calculated using the following formula:

[0064]

[0065] To determine if a short circuit or open circuit exists, a threshold of 5 ohms is set. If the calculated R... X A value greater than or equal to 5 ohms is considered an open circuit; a value less than 5 ohms is considered a short circuit.

[0066] The second method is power-on testing:

[0067] During the power-on test, the digital switch board 12 sends high-level trigger signals to different pins through the functional test input interface 31. These signals are then transmitted to different relays within the functional test box 3. Upon receiving the trigger signals, the relays begin to operate and output one or more sets of 24VDC voltages to the functional test output interface 33.

[0068] Subsequently, these voltage signals are sequentially supplied to the relays, optocouplers, and transformers on the PCBA under test (PCBA6) via the power-on control input interface 41, the power-on control output interface 42, the second docking interface 52, and the main PCBA docking interface 53. By connecting the output terminals of these relays, optocouplers, and transformers, it can be determined whether their output signals meet the design expectations.

[0069] Relay testing:

[0070] During this test, the functional test box 3 is equipped with multiple relays, which correspond to the relays on the PCBA under test via a test program. Controlled by the test program, the functional test box 3 can activate one of the relays, causing it to operate and output a standard 24VDC DC voltage signal. This voltage signal is used to control and drive the corresponding relay on the PCBA under test, which is electrically connected to it. This correspondence ensures the accuracy and reliability of the test; only correctly connected relays can be activated by this specific voltage signal, thus verifying whether the relays on the PCBA under test are functioning correctly.

[0071] Please refer to Figure 13 The functional test box 3 is internally equipped with multiple relays, namely K10′, K11′, K12′, and K13′. K10, K11, K12, and K13 are relays on the PCBA under test. K10′, K11′, K12′, and K13′ provide a 24VDC operating voltage to P60_18 (K10), P60_20 (K11), P60_33 (K12), and P60_37 (K13) respectively through the power-on control input interface 41, the power-on control output interface 42, the second docking interface 52, and the main PCBA docking interface 53. When these relays K10, K11, K12, and K13 receive the 24VDC operating voltage, they will be energized. After K10, K11, K12, and K13 are all engaged, the relay switches (Com) all switch to the left-side pins. K10, K11, K12, and K13 are interconnected through the left-side pins. The 24VDC from the switch (Com) to the left of K10 is transmitted to P60_13 through K10, K11, K12, and K13. By measuring the voltage on P60_13, it can be determined whether the PCBA under test is functioning normally as designed. If any relay is not functioning normally during the test, P60_13 will not output 24VDC. Furthermore, the voltage signal REF C will only be output when K10 is functioning normally, while the voltage signal REF E will only be generated when K11 is functioning normally.

[0072] Optical coupler testing: Please refer to Figure 14 In the optocoupler circuit, resistors R1, R4, R7, and R10 are located on the left side of the optocoupler, that is, the side connected to the LED. Their main function is to limit the current flowing through the LED, thereby protecting the optocoupler from overcurrent damage. After powering on the PCBA under test via the power-on interface, a 24VDC voltage will appear on resistors R1, R4, R7, and R10, as well as pins 16, 14, 12, and 10 of the optocoupler. This provides a low-level (ground) signal to P259-17, P259-15, and P259-16 of the P259 interface.

[0073] In this scenario, the LED on the left side of the optocoupler will light up because current is flowing through it (the 24V power supply plus ground forms a complete circuit loop). The phototransistor on the right side of the optocoupler senses the light emitted by the LED on the left and will conduct. This causes the pins U1-15, U1-13, and U1-11 on the right side of the optocoupler to output 24V (equivalent to a closed switch allowing current to flow). Next, measure the interface pins connected to U1-15, U1-13, and U1-11 to check if they have a 24V output. If the measurement shows a 24V voltage on these interface pins, it indicates that the LED on the left side of the optocoupler is lighting normally, and the phototransistor on the right side is conducting normally, thus confirming that the optocoupler is in good working order. Conversely, if no voltage is detected, it may mean that the optocoupler is damaged. This completes the optocoupler test. Simply put, it involves powering on the optocoupler circuit, grounding some of its pins to trigger the optocoupler to work, and then measuring whether there is an output voltage on the other pins to determine whether the optocoupler meets expectations.

[0074] Transformer testing: Please refer to Figure 15 The core of the power conversion circuit is a power module that converts DC voltage from 24V to ±15V. Specifically, V24 is the input 24V DC power supply. F31A is a fuse with a rated current of 1A; when the current exceeds this value, the fuse will automatically blow, thus protecting the entire circuit. L1 (2.2μH) and C1 (3.3μF / 50V) are a combination of inductor and capacitor, forming a "filter circuit" to filter out any noise and interference signals that may exist in the input 24V voltage, ensuring a more stable and pure output voltage. The power module's interfaces include Vin+ (pin 1) and Vin- (pin 2), used to connect to the positive and negative terminals of the input 24V, respectively. Vout+ (pin 3) and Vout- (pin 5) are used to output +15V and -15V voltages, respectively. Common (pin 4) is the common ground wire, and RemoteOn / Off (pin 6) is a remote switch control interface that allows external signals to be connected, thereby enabling remote control of the power module to be turned on or off.

[0075] Please refer to Figure 16The signal interface circuit consists of a 17-pin connector (labeled P13Endpoint), which is responsible for transmitting various signals and providing power. The functions of the main pins are as follows: Pin 6 connects to V-15 power, pin 7 to V15 power, pin 8 to V24 power, pin 13 to GND (V15 ground), pin 14 to GND, and pin 16 is labeled EARTH, indicating that this pin is used for grounding. To verify whether the transformer's output voltage meets the expected standard, the specific operating steps are as follows: First, use a voltage measuring tool to measure the voltage between pins 7 and 13 of the P13 interface, then measure the voltage between pins 7 and 14, ensuring that the voltage between these two sets of measurement points is 15VDC. Similarly, measure the voltage between pins 6 and 13, and between pins 6 and 14 of the P13 interface, ensuring that the voltage between these two sets of measurement points is -15VDC. By performing these measurement steps, we can accurately determine whether the transformer's output voltage meets the design requirements.

[0076] In summary, this application provides a universal testing device for rack-mounted PCBA soldering and performance. The core function of this device is to perform a series of tests on the PCBA through its input / output connector interfaces to ensure soldering accuracy and performance compliance. Specifically, it can perform static tests, including but not limited to open-circuit tests, short-circuit tests, polarity reversal tests, component missing detection, empty solder joint detection, and identification of faulty components. After the PCBA is powered on, the device can further control different relays, optocouplers, and transformers to perform interlock function tests, output function tests, etc. Furthermore, another significant advantage of this testing device is that it performs tests by directly connecting to the PCBA's connector interface. This includes not only testing the pins inside the connector interface but also comprehensive connectivity testing. Compared to traditional test fixtures that use probes to contact solder joints, this method is more reliable and accurate. Finally, this device has relatively low manufacturing costs, a short manufacturing cycle, and high design flexibility, making it highly versatile and applicable to various PCBAs.

[0077] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A PCBA soldering and performance testing device, characterized in that, The system includes a static test unit, a power-on test unit, and a connection unit. The connection unit is used for electrical connection to the PCBA under test. The static test unit includes an analog test module and an adapter module, with the adapter module connected between the analog test module and the connection unit. The power-on test unit includes a digital test module, a functional test module, and a power-on control module, which are sequentially connected. When the digital test module is in the off state and the analog test module is in the on state, the analog test module, the adapter module, and the connection unit are connected to form a static test transmission path. When the analog test module is in the off state and the digital test module is in the on state, the digital test module, the functional test module, the power-on control module, and the connection unit are connected to form a power-on test transmission path.

2. The PCBA soldering and performance testing apparatus according to claim 1, characterized in that, The connection unit includes a first connection module and a second connection module. The adapter module is connected between the analog test module and the first connection module. The digital test module, the functional test module, the power-on control module, and the second connection module are connected in sequence. When the digital test module is in the off state and the analog test module is in the on state, the analog test module, the switching module, and the first connection module are connected to form a static test transmission path. When the analog test module is in the off state and the digital test module is in the on state, the digital test module, the functional test module, the power-on control module, and the second connection module are connected to form a power-on test transmission path, and / or the first connection module and the second connection module are integrated.

3. The PCBA soldering and performance testing apparatus according to claim 2, characterized in that, The first connection module is provided with a first docking interface and a first PCBA docking interface. The first docking interface is connected to the adapter module and is used to receive signals from the adapter module. The first PCBA docking interface is connected to the PCBA under test and is used to apply signals to the PCBA under test for static testing.

4. The PCBA soldering and performance testing apparatus according to claim 3, characterized in that, The second connection module is provided with a second docking interface and a second PCBA docking interface. The second docking interface is connected to the power-on control module for receiving signals from the power-on control module. The second PCBA docking interface is connected to the PCBA under test for applying signals to the PCBA under test for power-on testing. And / or, the first PCBA interface and the second PCBA interface are integrated.

5. The PCBA soldering and performance testing apparatus according to claim 2, characterized in that, The simulation test module includes multiple simulation switch boards arranged in parallel, and each simulation switch board is connected to the adapter module.

6. The PCBA soldering and performance testing apparatus according to claim 5, characterized in that, The adapter module includes multiple ribbon cable adapter boards arranged in parallel, each ribbon cable adapter board being connected to a corresponding analog switch board, and each ribbon cable adapter board being connected to the first connection module. And / or, the ribbon cable adapter board is provided with a ribbon cable input port and a ribbon cable output port, the ribbon cable input port is connected to the analog switch board, and the ribbon cable output port is connected to the first connection module.

7. The PCBA soldering and performance testing apparatus according to claim 2, characterized in that, The digital test module includes a digital switch board and a power supply module. The functional test module is provided with a power input interface, a functional test input interface, and a functional test output interface. The power input interface is connected to the power supply module and is used to supply power to the functional test module. The functional test input interface is connected to the digital switch board, and the functional test output interface is connected to the power-on control module.

8. The PCBA soldering and performance testing apparatus according to claim 7, characterized in that, The power-on control module is provided with a power-on control input interface and a power-on control output interface. The power-on control input interface is connected to the function test output interface and is used to receive the DC voltage signal output by the function test module. The power-on control output interface is connected to the second connection module.

9. The PCBA soldering and performance testing apparatus according to claim 1, characterized in that, The digital testing module and the analog testing module are integrated into the testing machine.

10. The PCBA soldering and performance testing apparatus according to claim 9, characterized in that, The testing machine also includes an operation module, which is connected to the digital testing module and the analog testing module, and is used to control the digital testing module and the analog testing module to be turned on or off through the testing program.

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