A switching power supply inspection and detection device

Abstract

The utility model discloses a switching power supply inspection detection device, including detection box detection box is fixed with power supply and adjustable electronic load, and there is the installation part of switching power supply convenient to dismouting on the detection box, and the detection box is provided with power output end and load input end, and the power output end is connected with power supply, and the load input end is connected with adjustable electronic load, and forms switching power supply detection loop. The utility model discloses when to the detection of different switching power supply of waiting for measuring, need not to remove all switching power supply detection loop, only need to replace switching power supply of waiting for measuring, has improved detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power supply testing technology, and in particular to a switching power supply testing and inspection device for use in the field of switching power supply testing technology. Background Technology

[0002] The multiple outputs of a switching power supply refer to its ability to convert a single power output into multiple power outputs to provide different voltages and currents. It can provide different electrical energy and power to multiple electronic devices, adapting to different operating environments and needs. For example, a computer requires multiple voltage and power outputs to drive multiple components such as the CPU, graphics card, and hard drive. When testing a switching power supply, it needs to be connected to a specialized switching power supply testing circuit for testing.

[0003] Existing testing methods for switching power supplies typically involve specialized tools and equipment such as multimeters and oscilloscopes, requiring users to possess certain skills and experience. Furthermore, in practical applications, as the number of switching power supplies to be tested increases, a significant amount of time is spent installing and removing the power supplies under test, as well as restarting the testing circuitry after each installation and removal. This results in cumbersome testing procedures and low efficiency. Therefore, this paper proposes a switching power supply testing device to address these issues. Summary of the Invention

[0004] Therefore, it is necessary to provide a switching power supply testing and inspection device to address the technical problem of low testing efficiency in existing switching power supplies.

[0005] The present invention provides a switching power supply testing device, comprising a testing box, wherein a power supply and an adjustable electronic load are fixedly mounted in the testing box, and the testing box has a mounting part for easy disassembly and assembly of the switching power supply. The testing box is provided with a power output terminal and a load input terminal, wherein the power output terminal is connected to the power supply and the load input terminal is connected to the adjustable electronic load, forming a switching power supply testing circuit.

[0006] As described above, in a switching power supply testing and inspection device, the installation location is a plurality of mounting slots on the top of the testing box, each mounting slot having a different inner cavity.

[0007] As described above, a switching power supply testing and detection device has multiple mounting slots arranged side by side at intervals. The power output terminal and the load input terminal are divided into multiple groups and respectively arranged on both sides of the mounting slots.

[0008] As described above, in a switching power supply testing device, the power supply includes an adjustable DC power supply and an adjustable AC power supply, which are alternately connected in series in the switching power supply testing circuit via a switching switch.

[0009] In the switching power supply testing and detection device described above, the switching switch is a double-pole double-throw switch.

[0010] As described above, the testing device for a switching power supply has multiple mounting positions on the testing box, with at least four mounting positions respectively housing the adjustable DC power supply, the adjustable AC power supply, the adjustable electronic load, and the switching switch.

[0011] As described above, in a switching power supply testing device, an oscilloscope for testing the switching power supply is connected in parallel between the power output terminal and the load input terminal.

[0012] The switching power supply testing and detection device described above includes an oscilloscope connected to a host computer.

[0013] As described above, the testing device for switching power supplies includes a test box equipped with a master switch for controlling the on / off state of the power supply.

[0014] As described above, a switching power supply testing and inspection device is provided with a pair of handles on the testing box.

[0015] Compared with traditional technologies, this invention has the following advantages: When testing different switching power supplies, this invention does not require dismantling the entire switching power supply testing circuit; only the switching power supply under test needs to be replaced, thus improving testing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0018] Figure 3 for Figure 1 Enlarged view of point A;

[0019] Figure 4 for Figure 2 Enlarged view of point B;

[0020] Figure 5 This is a structural block diagram of the present utility model.

[0021] In the picture:

[0022] 1-Adjustable DC power supply; 2-Adjustable AC power supply; 3-Adjustable electronic load; 4-Detection box; 401-Mounting slot one; 402-Mounting slot two; 403-Mounting slot three; 5-Oscilloscope; 6-Master control switch; 7-Connection terminal; 71-Power output group one; 72-Power output group two; 73-Power output group three; 74-Load output group one; 75-Load output group two; 76-Load output group three; 81-Switching power supply one; 82-Switching power supply two; 83-Switching power supply three; 9-Double-pole double-throw switch; 10-Host computer; 11-Handle; 12-Plug interface. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that when a component is said to be "installed on" another component, it can be directly on the other component or it may be in a component that is centered on it. When a component is said to be "set on" another component, it can be directly set on the other component or it may also be in a component that is centered on it. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or it may also be in a component that is centered on it.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see Figure 1-5 As shown, a switching power supply testing device includes a power supply, an adjustable electronic load 3, and a testing box 4. The power supply includes an adjustable DC power supply 1 and an adjustable AC power supply 2.

[0027] To facilitate the connection of the switching power supply circuit, the top of the testing box 4 is equipped with three mounting slots, each with a different internal cavity. Switching power supplies of corresponding shapes are fitted into their respective slots, allowing for the placement of multi-channel switching power supplies of the corresponding model. The testing box 4 has multiple connection terminals, divided into two groups: one for power output and the other for load input. The power output and load input terminals are located on opposite sides of the mounting slots for easy wire connection.

[0028] The power output terminals are divided into three groups: power output group one 71, power output group two 72, and power output group three 73.

[0029] The power output group 71 corresponds to the mounting slot 401. The power output group 71 has a gate-shaped structure and multiple independent connection terminals. Each connection terminal is connected to the power output terminal located in the mounting slot 401.

[0030] Power output group 2 72 corresponds to mounting slot 2 402. Power output group 2 72 has a gate-shaped structure and multiple independent connection terminals. Each connection terminal is connected to a power output terminal located in mounting slot 2 402.

[0031] The power output group 3 73 corresponds to the mounting slot 3 403. The power output group 3 73 has a plate-like structure and multiple independent plug interfaces 12. Each plug interface 12 is connected to the pins on the power male connector located in the mounting slot 3 403.

[0032] Similarly, the load input terminals are divided into three groups: load output group one 74, load output group two 75, and load output group three 76. Load output group one 74, load output group two 75, and load output group three 76 are all gate-shaped structures and have multiple independent connection terminals. Each connection terminal is connected to the load input terminal in the corresponding mounting slot in a one-to-one correspondence.

[0033] In this application, to facilitate wire connection, each independent connection terminal on power output group one 71 and power output group two 72 has two connectors. One connector connects to the power supply terminal, eliminating the need to disconnect the power supply terminal during use. The other connector connects to the switching power supply via an input wire, requiring disconnection of this input wire when replacing the switching power supply.

[0034] Each individual connection terminal on load output group 1 74, load output group 2 75, and load output group 3 76 has two connectors. One connector connects to the switching power supply via an output wire, requiring disconnection and reconnection of the output wire when replacing the switching power supply. The other connector connects to the adjustable electronic load 3, eliminating the need for disconnection and reconnection during use.

[0035] Power output group 1 71, power output group 2 72 and power output group 3 73 are switched to conduction with the adjustable DC power supply and the adjustable AC power supply through a double-pole double-throw switch 9.

[0036] The double-pole double-throw switch 9 has one blade that switches between an adjustable DC power supply and an adjustable AC power supply, and the other blade that switches between power output group one 71, power output group two 72, and power output group three 73. In other words, the double-pole double-throw switch 9 can enable the adjustable DC power supply or the adjustable AC power supply to be connected to any one of power output groups one 71, two 72, or three 73.

[0037] In this application, the adjustable electronic load is a 12-channel adjustable electronic load. The detection box 4 has multiple conductive paths inside, and the input terminals of the multiple conductive paths are electrically connected one-to-one with the independent connection terminals on the load output group 1 74, load output group 2 75, and load output group 3 76. That is to say, when the load input terminal is connected to its corresponding load input terminal connection terminal, the circuit channels of the multiple load input terminals are also connected one-to-one with the load channels of the adjustable electronic load.

[0038] The switching power supply 81 outputs 24V / 1A, ±12V / 0.5A, 5V / 0.5A, ±15V / 0.4A; input is AC220V. In use, for example, place the switching power supply 81 in the mounting slot 401, and connect the input terminals of the switching power supply 81 to the corresponding terminals on the power output group 71 using wires or connectors 12. Similarly, connect the output terminals of the switching power supply 81 to the four corresponding terminals on the load output group 74 using wires or connectors 12. Manually switching the double-pole double-throw switch 9 connects the adjustable AC power supply to the power output group 71. At this time, the four circuit channels within the switching power supply 81 are connected to the four load channels of the adjustable electronic load. Adjusting the output voltage of the adjustable AC power supply allows for the simulation of the adjustable electronic load's operating state, thus enabling the testing of the input and output performance of the switching power supply 81.

[0039] The switching power supply 81 outputs 24V / 1A, ±12V / 0.5A, 5V / 0.5A, ±15V / 0.4A; input is AC220V. In use, place the switching power supply 81 in the corresponding mounting slot 401. Connect the input terminal of the switching power supply 81 to the multiple connection terminals on the power output group 71 using wires. Connect the output terminal of the switching power supply 81 to the multiple connection terminals on the load output group 74 using wires. Manually switch the double-pole double-throw switch 9 to connect the adjustable AC power supply to the power output group 71. At this time, the three circuit channels within the switching power supply 81 are connected to the three load channels of the adjustable electronic load. Adjust the output voltage of the adjustable AC power supply to adjust the simulated operating state of the adjustable electronic load, thereby testing the input and output performance of the switching power supply 81.

[0040] Switching power supply 2.82 output: 5V / 3A, ±12V / 0.5A, 24V / 2.5A; input: AC220V. In use, place switching power supply 2.82 in the corresponding mounting slot 2.402. Connect the input terminal of switching power supply 2.82 to the multiple connection terminals on power output group 2.72 using wires. Connect the output terminal of switching power supply 2.82 to the multiple connection terminals on load output group 2.75 using wires. Manually switch the double-pole double-throw switch 9 to connect the adjustable AC power supply to power output group 2.72. At this time, the five circuit channels within switching power supply 2.82 are connected to the five load channels of the adjustable electronic load. Adjust the output voltage of the adjustable AC power supply to adjust the simulated operating state of the adjustable electronic load, thereby testing the input and output performance of switching power supply 2.82.

[0041] The switching power supply 383 outputs 5V / 3A, ±12V / 0.5A; input is DC18~35V. In use, place the switching power supply 383 in the corresponding mounting slot 3403. Connect the input terminal of the switching power supply 383 to the multiple connection terminals on the power output group 373 using wires or connectors 12. Connect the output terminal of the switching power supply 383 to the multiple connection terminals on the load output group 376 using wires. Manually switch the double-pole double-throw switch 9 to connect the adjustable DC power supply to the power output group 373. At this time, the four circuit channels in the switching power supply 282 are connected to the four load channels of the adjustable electronic load. The remaining three circuit channels in the switching power supply 282 can be connected after the load channels of the adjustable electronic load become available. Adjust the output voltage of the adjustable DC power supply to adjust the simulated operating state of the adjustable electronic load, thus testing the input and output performance of the switching power supply 383.

[0042] In this application, the test box 4 is provided with multiple mounting positions, and at least four mounting positions are respectively equipped with an adjustable DC power supply, an adjustable AC power supply, an adjustable electronic load and a double-pole double-throw switch 9. The mounting positions are pre-set with plug-in interfaces 12 to facilitate the rapid assembly of different components and to provide optimal connection lines for circuit connection.

[0043] In this application, the oscilloscope 5 is used to read voltage and current parameters. After the switching power supply detection circuit is installed and connected, it is convenient to detect multiple output switching power supplies at the same time.

[0044] In this application, the test box 4 is equipped with a host computer interface, through which the data collected by the oscilloscope 5, the adjustable DC power supply, the adjustable AC power supply, and the adjustable electronic load are transmitted to the host computer 10. The host computer 10 can process and analyze the data through its built-in program and display the test status of the switching power supply under test.

[0045] Furthermore, a master control switch 6 for controlling the power supply is installed on the top panel of the testing box 4.

[0046] Furthermore, the testing box 4 is equipped with a pair of handles 11 for easy handling.

[0047] In this application, the main control switch 6 is set to facilitate the control of the entire switching power supply detection circuit.

[0048] In this application, the adjustable DC power supply is a combination of a DC power supply and a voltage regulator, used to output different DC voltages. The adjustable AC power supply is a combination of an AC power supply and a voltage regulator, used to output different AC voltages. The adjustable electronic load 3 is a multi-channel adjustable electronic load. The adjustable DC power supply, adjustable AC power supply, and adjustable electronic load are all prior art, and changes to their internal structures are not a limitation on the scope of protection of this application.

[0049] To facilitate observation of the voltage and current information of each channel of the switching power supply under test, an oscilloscope 5 for testing the switching power supply is connected in parallel between the power supply output terminal and the load input terminal.

[0050] In this application, oscilloscope 5 is a multi-channel oscilloscope, which can meet the requirements of real-time measurement of multiple circuit channels of the switching power supply and observation of the working performance of the switching power supply under different operating conditions.

[0051] To facilitate observation and comparison of voltage and current input and output states, the adjustable DC power supply, the adjustable AC power supply, and the oscilloscope 5 are electrically connected to the host computer 10. The host computer 10 collects the output voltage and current information of the adjustable DC power supply and the adjustable AC power supply in real time, and also collects the switching power supply performance information acquired by the oscilloscope, which is used to judge the switching power supply performance.

[0052] In this application, a main control switch 6 for controlling the power supply is installed on the top panel of the testing box 4. When the main control switch 6 is turned off, both the adjustable DC power supply and the adjustable AC power supply are in a de-energized state. The main control switch 6 is used as a safety switch.

[0053] The method of using this utility model is as follows:

[0054] 1. Connect the oscilloscope, adjustable electronic load 3, and adjustable DC or AC power supply interfaces 12 to the preset connection terminals or interfaces 12 on the test box 4 respectively; the adjustable voltage range of DC power supply 1 is 0.01V~80V, the adjustable voltage range of AC power supply 2 is 0.01V~250V, and the adjustable electronic load 3 can meet the requirement of simultaneously testing multiple switching power supplies, thereby improving the detection efficiency of switching voltage.

[0055] 2. Place the switching power supply under test in the corresponding mounting slot and connect it to the power output terminal and the load input terminal respectively to form a switching power supply detection circuit;

[0056] 3. Turn on the main control switch 6, switch the double-pole double-throw switch 9, adjust the output voltage, adjust the adjustable electronic load power until the output current of the switching power supply under test reaches the rated current value;

[0057] 4. Use oscilloscope 5 to test the switching power supply, while the host computer 10 collects the test information in real time.

[0058] This invention improves testing efficiency by eliminating the need to dismantle the entire switching power supply testing circuit when testing different switching power supplies. Only the switching power supply under test needs to be replaced.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A testing and inspection device for switching power supplies, comprising a testing box (4), characterized in that: The test box (4) is fixed with a power supply and an adjustable electronic load (3). The test box (4) has a mounting part for easy disassembly and assembly of the switching power supply. The test box (4) is provided with a power output terminal and a load input terminal. The power output terminal is connected to the power supply, and the load input terminal is connected to the adjustable electronic load (3) to form a switching power supply test circuit.

2. The switching power supply testing and detection device according to claim 1, characterized in that: The installation location is a plurality of mounting slots on the top of the detection box (4), each mounting slot having a different inner cavity.

3. The switching power supply testing and detection device according to claim 2, characterized in that: Multiple mounting slots are arranged side by side at intervals, and the power output terminal and load input terminal are divided into multiple groups and respectively arranged on both sides of the mounting slot.

4. A switching power supply testing and detection device according to claim 1 or 2, characterized in that: The power supply includes an adjustable DC power supply (1) and an adjustable AC power supply (2), which are alternately connected in series in the switching power supply detection circuit via a switching switch.

5. The switching power supply testing and detection device according to claim 4, characterized in that: The switching switch (9) is a double-pole double-throw switch.

6. The switching power supply testing and detection device according to claim 5, characterized in that: The detection box (4) is provided with multiple mounting positions, and at least four mounting positions are respectively equipped with the adjustable DC power supply (1), the adjustable AC power supply (2), the adjustable electronic load (3) and the switching switch (9).

7. The switching power supply testing and detection device according to claim 1, characterized in that: An oscilloscope (5) for detecting the switching power supply is connected in parallel between the power output terminal and the load input terminal.

8. The switching power supply testing and detection device according to claim 7, characterized in that: The oscilloscope (5) is connected to a host computer (10).

9. The switching power supply testing and detection device according to claim 1, characterized in that: The detection box (4) is equipped with a master control switch (6) for controlling the power supply.

10. A switching power supply testing and detection device according to claim 1, characterized in that: The testing box (4) is equipped with a pair of handles (11).

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