Power supply module detection device

Abstract

The utility model belongs to the technical field of power supply detection, and particularly relates to a power supply module detection device, which comprises a box body mechanism composed of an upper cover plate, a front panel, a case and a rear panel, the upper cover plate is movably connected with the case, and the rear panel is provided with a power socket; the signal processing board is located in the case and provided with a bonding pad hole corresponding to the power module and a double-spring loading wiring terminal, and positioning holes are formed in the four corners of the signal processing board. The detection device is simple and convenient to operate, high in accuracy and high in detection efficiency, saves manpower, ensures the connection reliability of the power supply module to be detected, and meanwhile, the detection of the no-load voltage and the load voltage is automatic detection, so that the influence of test errors and human factors on the test correctness of the PT6937A2 power supply module is avoided, and the test efficiency of the PT6937A2 power supply module is also improved.

Description

Technical Field

[0001] This utility model belongs to the field of power supply testing technology, and in particular relates to a power module testing device and testing method. Background Technology

[0002] By testing the power module, we can not only ensure that its performance meets the requirements, such as the accuracy and stability of the output voltage, and guarantee the normal power supply to the equipment, but also detect whether its internal components are damaged or have potential faults, so as to avoid sudden failures during use that affect the operation of the equipment. Furthermore, we can verify its working ability under different load conditions to adapt to actual application scenarios and improve system reliability.

[0003] The PT6937A2 power module primarily powers a digital signal processor, providing 5V, 3.3V, and 1.8V. It consists of a printed circuit board (PCB) and a power monitor. According to the power module's manufacturing process, during assembly, the 23 pin headers are passed through the power module's pin header pads and the corresponding pads on the PCB of the digital signal processor, and soldered to the corresponding pins on the bottom of the PCB. Under these assembly requirements, the 23 pad holes on the PCB are not assembled before the power module is installed in the final product. Therefore, during power module testing, soldered test leads or cable clamps are required, potentially damaging the pads. Furthermore, according to technical requirements, this power module needs to undergo load testing, including 3.3V and 1.8V loads. This test also requires manual operation using test leads to test the pad holes, leading to pad damage and significant measurement errors. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a power module testing device and testing method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a power module detection device, comprising:

[0006] The enclosure consists of a top cover, a front panel, a chassis, and a rear panel. The top cover is movably connected to the chassis, and the rear panel is equipped with a power socket.

[0007] The signal processing board is located inside the chassis and has pad holes corresponding to the power module and double spring-loaded terminals. Positioning holes are provided at all four corners of the signal processing board.

[0008] The power supply is located inside the chassis;

[0009] The front panel, located on the front of the chassis, features a 3.3V output voltmeter, a 1.8V output voltmeter, a power switch, a 3.3V load input terminal, a 1.8V load input terminal, a voltage test terminal, and LEDs. The LEDs indicate the voltage status of the power module. The 3.3V and 1.8V output voltmeters display the voltage values ​​under no-load and load conditions. The 3.3V and 1.8V load input terminals are used to connect electronic loads to input current, and the voltage test terminal is used to connect an external multimeter to measure voltage.

[0010] The first copper pillar is set inside the chassis, and the positioning hole of the signal processing board is fixedly connected to the chassis through the first copper pillar;

[0011] The second copper pillar is positioned above the signal processing board;

[0012] Electronic loads, located outside the chassis, are used to provide specific loads.

[0013] Preferably, the upper cover is hinged to the chassis via a hinge, and a door lock is provided on the upper cover.

[0014] Preferably, the double spring-loaded terminals soldered to the pad holes on the signal processing board use spring force to make the probe contact the pads of the power module, and the contact end is arc-shaped. The signal processing board also includes mains power conversion and output circuits.

[0015] Preferably, the power supply and the signal processing board are connected via a power cable, which includes 5V, 3.3V and 1.8V cables.

[0016] Preferably, a rubber buffer pad is provided on the top of the second copper pillar. The thickness of the rubber buffer pad is 2-3 mm and the hardness is 40-60 Shore A.

[0017] Compared with existing technologies, the advantages of a power module testing device are:

[0018] 1. By using dual-spring loaded terminal blocks to connect the power module, damage to the pads is avoided by traditional methods. At the same time, the signal processing board is firmly connected to the copper pillars and chassis through positioning holes, ensuring reliable connection and signal stability. This achieves the effect of protecting the power module pads and improving detection accuracy and stability.

[0019] 2. The front panel integrates a voltmeter, switch, test terminals, and LEDs for easy monitoring and control. The electronic load provides accurate load and the connecting wires are of good quality. The chassis is made of high-quality materials and has heat dissipation and regulation functions, achieving the effects of convenient operation, accurate testing, stable operation, and extended device life.

[0020] 3. By using no-load and load voltage detection steps and the coordinated operation of various components of the detection device, the performance of the power module can be comprehensively evaluated, its power supply quality can be ensured, and its stable operation under different working conditions can be achieved, which effectively improves the efficiency and reliability of power module detection. Attached Figure Description

[0021] Figure 1 This is a schematic block diagram of a power module testing device provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a power module testing device provided by this utility model;

[0023] Figure 3 This is a top view of the upper cover of a power module testing device provided by this utility model.

[0024] Figure 4 This is a schematic diagram of the front panel of a power module testing device provided by this utility model;

[0025] Figure 5 This is a schematic diagram of the printed circuit board of the PT6937A2 power module, which is a power module testing device provided by this utility model.

[0026] Figure 6 This is a schematic diagram of the rear panel of a power module testing device provided by this utility model;

[0027] Figure 7 This is a schematic diagram of a power module testing device provided by this utility model.

[0028] In the diagram: 1. Top cover; 1-1. Hinge; 1-2. Door lock; 2. Front panel; 2-1. 3.3V output voltmeter; 2-2. 1.8V output voltmeter; 2-3. Power switch; 2-4. 3.3V load input; 2-5. 1.8V load input terminal; 2-6. Voltage test terminal; 2-7. Light-emitting diode; 3. Signal processing board; 3-1. Solder pad hole; 3-2. Positioning hole; 4. Chassis; 5. Power supply; 6. Rear panel; 6-1. Power socket; 7. First copper pillar; 8. Second copper pillar; 9. Electronic load. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] like Figures 1-7 As shown, a power module testing device includes:

[0031] The enclosure structure consists of a top cover 1, a front panel 2, a chassis 4, and a rear panel 6. The top cover 1 is movably connected to the chassis 4. The rear panel 6 has a power socket 6-1. The signal processing board 3 is located inside the chassis 4 and has solder pad holes 3-1 corresponding to the power module and double spring-loaded terminals. Positioning holes 3-2 are located at each of the four corners of the signal processing board 3. The power supply 5 is located inside the chassis 4. The front panel 2 is located on the front of the chassis 4. The front panel 2 has a 3.3V output voltmeter 2-1, a 1.8V output voltmeter 2-2, a power switch 2-3, a 3.3V load input terminal 2-4, a 1.8V load input terminal 2-5, a voltage test terminal 2-6, and an LED 2-7. The LED 2-7 indicates the voltage status of the power module. The 3.3V output voltmeter 2-1 and the 1.8V output voltmeter 2-2 are used for display... The voltage values ​​are displayed under no-load and load conditions. The 3.3V load input terminal 2-4 and the 1.8V load input terminal 2-5 are used to connect the electronic load input current. The voltage test terminal 2-6 is used to connect an external multimeter to measure the voltage. The first copper pillar 7 is set inside the chassis 4. The positioning hole 3-2 of the signal processing board 3 is fixedly connected to the chassis 4 through the first copper pillar 7. The second copper pillar 8 is set above the signal processing board 3. The electronic load 9 is located outside the chassis 4 and is used to provide a specific load. The first copper pillar 7 is mainly used to fix the signal processing board 3. It cooperates with the positioning hole 3-2 on the signal processing board 3. The first copper pillar 7 is screwed through the positioning hole 3-2 and screwed to the first copper pillar 7, thereby fastening the signal processing board 3 inside the chassis 4, ensuring the stable position of the signal processing board 3 inside the detection device, ensuring its normal operation and the reliability of its connection with other components.

[0032] The upper cover 1 is hinged to the chassis 4 via a hinge 1-1, and a door lock 1-2 is provided on the upper cover 1.

[0033] The double spring-loaded terminal block soldered at pad hole 3-1 on the signal processing board 3 uses spring force to make the probe contact the pad of the power module. The contact end is arc-shaped. The signal processing board 3 also includes mains power conversion and output circuit.

[0034] Power supply 5 is connected to signal processing board 3 via power cables, which include 5V, 3.3V and 1.8V cables.

[0035] The top of the second copper pillar 8 is equipped with a rubber buffer pad, which is 2-3 mm thick and has a Shore hardness of 40-60.

[0036] The operating principle of this utility model is explained as follows: Open the top cover 1 of the chassis 4, align the positioning hole of the power module under test with the second copper pillar 8 above the signal processing board 3, and at the same time make the test hole of the power module correspond to the double spring loading terminal on the signal processing board 3. Then, use a stud to pass through the positioning hole of the power module and fix it on the signal processing board 3 to ensure that the connection between the power module and the testing device is stable and reliable.

[0037] Connect the mains power to 220V via the power socket 6-1 on the rear panel 6, and turn on the power switch 2-3 on the front panel 2. At this time, the LEDs 2-7 corresponding to 5V, 3.3V and 1.8V on the front panel 2 will light up. Read and record the voltage output value under no-load conditions using the 3.3V output voltmeter 2-1 and the 1.8V output voltmeter 2-2. Observe whether the voltage value is within the normal range. After completing the no-load voltage test, turn off the power switch 2-3. This completes the no-load voltage test of the power module.

[0038] Connect the wire harness with the red probe to the "+" terminal of the "INPUT" connector on the electronic load 9, and connect the black probe to the "-" terminal. Then, insert the red probe into the "3.3V Load+" 2-4 jack on the front panel 2 of the testing device, and insert the black probe into the "3.3V Load-" jack 2-4. Turn on the "Power" switch of the electronic load 9, and press "I-set", "8", and "Enter" in sequence to set the current value to 8A. Turn on the power switch 2-3 of the testing device again, and press the "on / off" button on the electronic load 9. Observe the load voltage value displayed on the 3.3V output voltmeter 2-1, record the value, and determine whether it meets the requirements. After the test is completed, turn off the power switch 2-3 of the testing device and disconnect the red and black probes. This completes the 3.3V load voltage test of the power module.

[0039] Insert the red probe into the "1.8V Load+" 2-5 socket on the front panel 2 of the testing device, and the black probe into the "1.8V Load-" 2-5 socket. Turn on the "Power" switch of the electronic load 9. Press "I-set", "2", and "Enter" in sequence using the operation buttons on the electronic load 9 to set the current value to 2A. Turn on the power switch 2-3 of the testing device, press the "on / off" button on the electronic load 9, and check the load voltage value displayed on the 1.8V output voltmeter 2-2. Record the data and determine whether it is normal. After completion, turn off the power switch 2-3 of the testing device and disconnect the red and black probes to complete the 1.8V load voltage test of the power module.

[0040] The power module tested was model PT6937A2.

[0041] 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 power module detection apparatus, characterized by comprising: include: The enclosure consists of an upper cover (1), a front panel (2), a chassis (4), and a rear panel (6). The upper cover (1) is movably connected to the chassis (4), and the rear panel (6) is equipped with a power socket (6-1). The signal processing board (3) is located inside the chassis (4) and is provided with pad holes (3-1) corresponding to the power module and double spring loading terminals. The four corners of the signal processing board (3) are provided with positioning holes (3-2). The power supply (5) is located inside the chassis (4); The front panel (2) is located on the front of the chassis (4). The front panel (2) is equipped with a 3.3V output voltmeter (2-1), a 1.8V output voltmeter (2-2), a power switch (2-3), a 3.3V load input terminal (2-4), a 1.8V load input terminal (2-5), a voltage test terminal (2-6), and a light-emitting diode (2-7). The light-emitting diode (2-7) is used to indicate the voltage status of the power module. The 3.3V output voltmeter (2-1) and the 1.8V output voltmeter (2-2) are used to display the voltage values ​​under no-load and load conditions. The 3.3V load input terminal (2-4) and the 1.8V load input terminal (2-5) are used to connect electronic loads to input current. The voltage test terminal (2-6) is used to connect an external multimeter to measure voltage. The first copper pillar (7) is set inside the chassis (4), and the positioning hole (3-2) of the signal processing board (3) is fixedly connected to the chassis (4) through the first copper pillar (7); The second copper pillar (8) is positioned above the signal processing board (3); An electronic load (9), located outside the chassis (4), is used to provide a specific load.

2. The power module detection apparatus of claim 1, wherein The upper cover (1) is hinged to the chassis (4) via a hinge (1-1), and a door lock (1-2) is provided on the upper cover (1).

3. The power module detection apparatus of claim 1, wherein The double spring-loaded terminal block soldered at the pad hole (3-1) on the signal processing board (3) makes the probe contact the pad of the power module through the spring force. The contact end is arc-shaped. The signal processing board (3) also includes a mains power conversion and output circuit.

4. The power module detection apparatus of claim 1, wherein The power supply (5) is connected to the signal processing board (3) via a power cable, which includes 5V, 3.3V and 1.8V cables.

5. The power module detection apparatus of claim 1, wherein The top of the second copper column (8) is provided with a rubber buffer pad, the thickness of which is 2-3 mm and the hardness is 40-60 Shore hardness.

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