A multifunctional power panel module testing device

Abstract

The application discloses a multifunctional power supply screen module testing device, and relates to the field of power supply screen testing.The multifunctional power supply screen module testing device comprises a detection control loop connected with alternating current; a multi-type plug interface connected with the detection control loop and used for connecting a target power supply screen; and a voltage regulation loop connected with the detection control loop and used for regulating the output voltage range of the detection control loop; the detection control loop, the multi-type plug interface and the voltage regulation loop form a testing loop; in the case that the target power supply screen is connected to the testing loop, the detection control loop outputs direct current output working voltage, alternating current output working voltage, voltage regulation output working current and voltage regulation output working voltage corresponding to the target power supply screen.The multifunctional power supply screen module testing device is convenient to carry and can improve the detection efficiency of the target power supply screen.

Description

Technical Field

[0001] This application relates to the field of power supply panel testing, and in particular to a multifunctional power supply panel module testing device. Background Technology

[0002] With the rapid development of China's railways, especially electrified high-speed railways in recent years, ensuring safety during railway transportation has become a key focus. As the core of electrified railways, the power supply panel is crucial. When input voltage is unstable due to grid power supply issues, ensuring the stable output voltage of the power supply panel guarantees the normal operation of signaling equipment and turnouts downstream of it. Therefore, ensuring the normal operation of the power supply panel module has become a top priority for electrical engineering work.

[0003] Currently, power supply panels in electrified railways come from different manufacturers, and each manufacturer's power supply panels have different interface methods and operating voltage ranges. Therefore, traditional testing methods require the use of different models of testing devices to test the corresponding power supply panels, which means that staff have to carry multiple testing devices, which is not only inconvenient to carry but also reduces testing efficiency. Therefore, there is an urgent need to provide a multifunctional power supply panel module testing device that is easy to carry and can improve testing efficiency. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the related technologies, the purpose of this application is to provide a multifunctional power supply module testing device that is easy to carry and can improve the testing efficiency of the target power supply.

[0005] To achieve the above objectives, this application provides the following solution: In a first aspect, this application provides a multifunctional power supply module testing device, comprising: a detection and control circuit connected to AC power; a multi-type connector connected to the detection and control circuit and used for connecting a target power supply; and a voltage regulating circuit connected to the detection and control circuit and used for adjusting the output voltage range of the detection and control circuit; wherein the detection and control circuit, the multi-type connector, and the voltage regulating circuit constitute a test circuit, and when the target power supply is connected to the test circuit, the detection and control circuit outputs a DC output working voltage, an AC output working voltage, a voltage regulating output working current, and a voltage regulating output working voltage corresponding to the target power supply.

[0006] Optionally, the detection control circuit includes a first switch K1, a detection module, a DC voltmeter V2, and an AC voltmeter V3; wherein, the first switch K1 is used to control the connection and disconnection of the detection control circuit with AC power; the detection module includes a second switch K2, which is used to switch detection modes, including a DC detection mode and an AC detection mode. When the detection control circuit detects the target power supply panel in DC detection mode, the DC voltmeter V2 measures and displays the DC output operating voltage of the target power supply panel; when the detection control circuit detects the target power supply panel in AC detection mode, the AC voltmeter V3 measures and displays the AC output operating voltage of the target power supply panel.

[0007] Optionally, the detection module further includes an integrated EMI filter unit, a PFC main circuit unit, a DC / AC main circuit unit, and an output filter unit; wherein, the EMI filter unit is used to suppress power grid interference signals; the PFC main circuit unit is used to improve the power factor; the DC / AC main circuit unit is used to realize bidirectional conversion between DC and AC according to the current detection mode of the second switch K2; and the output filter unit is used to filter the converted DC or AC.

[0008] Optionally, the detection module further includes a power supply switching button and a full-bridge rectifier unit; wherein, the power supply switching button is used to switch the power supply mode, the power supply mode includes a DC power supply mode and an AC power supply mode; the full-bridge rectifier unit is used to convert the input AC power into DC power in AC power supply mode to power the PFC main circuit unit, the DC / AC main circuit unit and the output filter unit.

[0009] Optionally, the multi-type connector includes a first connector and a second connector, both of which include parallel connectors of different types; the first connector is connected to the detection and control circuit; and the second connector is connected to the voltage regulation circuit.

[0010] Optionally, the voltage regulation circuit includes a third switch K3, an autotransformer, a voltage regulating current A1, and a voltage regulating voltmeter V1; wherein, the third switch K3 is used to control the on / off state of the voltage regulation circuit to simulate external power grid fluctuations; the autotransformer is used to adjust the voltage input to the target power supply panel within a preset voltage regulation range; the voltage regulating current A1 is used to measure and display the voltage regulating output operating current of the target power supply panel within the preset voltage regulation range; and the voltage regulating voltmeter V1 is used to measure and display the voltage regulating output operating voltage of the target power supply panel within the preset voltage regulation range.

[0011] Optionally, the preset voltage regulation range of the autotransformer is 176V to 264V.

[0012] Optionally, the multi-functional power supply module testing device further includes a TVS diode, which is connected in parallel with the output terminal of the autotransformer. When the output voltage exceeds the preset voltage regulation range of the autotransformer, the TVS diode is used to clamp and limit the voltage to protect the downstream load.

[0013] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides a multifunctional power supply module testing device. The device connects a target power supply to a detection control circuit via multiple types of connectors. The detection control circuit detects the DC and AC output voltages of the target power supply to obtain its DC and AC operating voltages. A voltage regulation circuit adjusts the output voltage range of the detection control circuit to measure the stability of the target power supply under different operating voltages. By connecting target power supplies from different manufacturers and models to the detection control circuit or voltage regulation circuit via multiple types of connectors, the device can detect the DC and AC output voltages and assess their stability. This allows for the measurement of target power supplies from multiple manufacturers using a single multifunctional power supply module testing device, saving costs for enterprises, reducing measurement time, and improving measurement efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This application provides a functional module schematic diagram of a multifunctional power supply module testing device according to an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of a multifunctional power supply module testing device according to an embodiment of this application.

[0016] Figure descriptions: 10, detection control circuit; 101, detection module; 20, multi-type connector; 201, first connector; 202, second connector; 30, voltage regulation circuit; 301, autotransformer. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] In one exemplary embodiment, such as Figure 1 As shown, a functional module diagram of a multi-functional power supply module testing device is provided. The device includes a detection control loop 10, multiple types of connectors 20, and a voltage regulation loop 30. The detection control loop 10 is connected to AC power; the multiple types of connectors 20 are connected to the detection control loop 10, and the tester connects to the multiple types of connectors 20 of the target power supply module according to the target; the voltage regulation loop 30 is connected to the detection control loop 10 and is used to adjust the output voltage range of the detection control loop 10. During measurement, the detection control loop 10, the multiple types of connectors 20, and the voltage regulation loop 30 form a test loop. When the target power supply module is connected to the test loop, the detection control loop 10 outputs the corresponding DC output operating voltage, AC output operating voltage, voltage regulation output operating current, and voltage regulation output operating voltage.

[0020] The target power supply panel is connected to the detection control loop 10 via a multi-type connector 20. The DC output voltage and AC output voltage of the target power supply panel are detected by the detection control loop 10 to obtain the DC output operating voltage and AC output operating voltage of the target power supply panel. The output voltage range of the detection control loop 10 is adjusted by the voltage regulation loop 30 to measure the stability of the target power supply panel under different operating voltages. Target power supply panels of different manufacturers and models are connected to the detection control loop 10 or the voltage regulation loop 30 via the multi-type connector 20 to realize the detection of the DC output voltage, AC output voltage and stability of the target power supply panel. This achieves the goal of measuring target power supply panels from multiple manufacturers using a single multi-functional power supply panel module testing device, which not only saves economic costs for enterprises but also reduces measurement time and improves measurement efficiency.

[0021] In a specific embodiment, such as Figure 2As shown, the detection control circuit 10 includes a first switch K1, a detection module 101, a DC voltmeter V2, and an AC voltmeter V3. The first switch K1 controls the connection and disconnection of the detection control circuit 10 with AC power. The detection module 101 includes a second switch K2, which switches between detection modes, including a DC detection mode and an AC detection mode. When the detection control circuit 10 detects the target power supply panel in DC detection mode, the DC voltmeter V2 measures and displays the DC output operating voltage of the target power supply panel. When the detection control circuit 10 detects the target power supply panel in AC detection mode, the AC voltmeter V3 measures and displays the AC output operating voltage of the target power supply panel.

[0022] It should be noted that when the target power supply panel is connected to the detection control loop 10 and the first switch K1 is closed, the DC output voltage or AC output voltage of the target power supply panel under load is monitored in real time by either a DC voltmeter V2 or an AC voltmeter V3. That is, when the first switch K1 is closed, if the second switch K2 is switched to DC detection mode, the DC voltmeter V2 measures the DC output voltage of the target power supply panel; if the second switch K2 is switched to AC detection mode, the AC voltmeter V3 measures the AC output voltage of the target power supply panel.

[0023] Furthermore, the detection module 101 also includes an integrated EMI filter unit, a PFC main circuit unit, a DC / AC main circuit unit, and an output filter unit; wherein, the EMI filter unit is used to suppress grid interference signals; the PFC main circuit unit is used to improve the power factor; the DC / AC main circuit unit is used to realize bidirectional conversion between DC and AC according to the current detection mode of the second switch K2; and the output filter unit is used to filter the converted DC or AC.

[0024] It should be noted that the EMI filtering unit includes a common-mode inductor and capacitor, with an interference signal suppression capability of ≥40dB for a frequency range of 150kHz~30MHz; the PFC main circuit unit is an active power factor correction circuit, with a power factor ≥0.98 within an input voltage range of 0V~220V; the DC / AC main circuit unit supports a DC input range of 24V to 72V and an AC output range of 0~220V (50Hz); the output filtering unit includes an LC filter circuit, with an output voltage ripple ≤50mV (peak-to-peak), ensuring a stable output signal during target power supply panel testing.

[0025] Furthermore, the detection module 101 also includes a power supply switching button and a full-bridge rectifier unit; wherein, the power supply switching button is used to switch the power supply mode, the power supply mode includes DC power supply mode and AC power supply mode; the full-bridge rectifier unit is used to convert the input AC power into DC power in AC power supply mode to power the PFC main circuit unit, DC / AC main circuit unit and output filter unit.

[0026] It should be noted that the full-bridge rectifier unit consists of 4 Schottky diodes, with a rectification efficiency of ≥95% and a maximum rectified current of ≥5A.

[0027] Furthermore, the multi-type connector 20 includes a first connector 201 and a second connector 202, both of which include parallel connectors of different types; the first connector 201 is connected to the detection and control circuit 10; and the second connector 202 is connected to the voltage regulating circuit 30.

[0028] It should be noted that the first connector 201 includes parallel connectors D1 to D4, which connect to target power panels from different manufacturers via multiple test leads. The second connector 202 includes parallel connectors D5 and D6; it connects to the target power panel to test its stability under voltage fluctuations. Furthermore, the first connector 201 contains at least four different plug specifications to adapt to the interface standards of target power panels from different manufacturers, supporting simultaneous connection of two to three target power panels from different manufacturers for comparative testing, thus improving compatibility.

[0029] In a specific embodiment, such as Figure 2 As shown, the voltage regulating circuit 30 includes a third switch K3, an autotransformer 301, a voltage regulating current A1, and a voltage regulating voltmeter V1. The third switch K3 controls the on / off state of the voltage regulating circuit 30 to simulate external power grid fluctuations. The autotransformer 301 adjusts the voltage input to the target power supply panel within a preset voltage regulation range. The voltage regulating current A1 measures and displays the voltage regulating output operating current of the target power supply panel within the preset voltage regulation range. The voltage regulating voltmeter V1 measures and displays the voltage regulating output operating voltage of the target power supply panel within the preset voltage regulation range.

[0030] It should be noted that the voltage regulation range of the autotransformer 301 conforms to the allowable range of external power grid fluctuations specified in the "Maintenance Regulations," and is used to regulate the voltage input to the target power supply panel; the voltage regulation range is 176V to 264V, the regulation accuracy is ≤±1V, and it supports manual continuous adjustment, for example... Figure 2 The sliding rheostat R in L .

[0031] Furthermore, the multi-functional power supply module test device also includes a TVS diode connected in parallel at the output of the autotransformer 301. When the output voltage exceeds the preset voltage regulation range of the autotransformer 301, the TVS diode is used to clamp and limit the voltage to protect the downstream load.

[0032] It should be noted that when the first switch K1 is closed, and the second switch K2 is switched to DC detection mode, the DC voltmeter V2 measures the DC output voltage of the target power supply panel; when the second switch K2 is switched to AC detection mode, the AC voltmeter V3 measures the AC output voltage of the target power supply panel; at the same time, the third switch K3 is closed to adjust the resistance value of the autotransformer 301, and the voltage regulation current A1 and voltage regulation voltmeter V1 data are collected synchronously to generate a voltage-current curve, which is used to determine the stability of the target power supply panel under different voltages.

[0033] 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.

[0034] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. In summary, the content of this specification should not be construed as a limitation of this application.

Claims

1. A multifunctional power supply panel module testing device, characterized in that, The multi-functional power supply module testing device includes: The detection and control circuit is connected to AC power. Multiple types of plug interfaces connected to the detection and control loop and used for connecting to the target power supply panel; A voltage regulating circuit connected to the detection control circuit and used to adjust the output voltage range of the detection control circuit; The detection control circuit, the multi-type plug interface, and the voltage regulation circuit constitute a test circuit. When the target power supply panel is connected to the test circuit, the detection control circuit outputs the DC output working voltage, AC output working voltage, voltage regulation output working current, and voltage regulation output working voltage corresponding to the target power supply panel.

2. The multifunctional power supply panel module testing device according to claim 1, characterized in that, The detection and control circuit includes a first switch K1, a detection module, a DC voltmeter V2, and an AC voltmeter V3; The first switch K1 is used to control the connection and disconnection of the detection control circuit with AC power. The detection module includes a second switch K2, which is used to switch the detection mode. The detection mode includes a DC detection mode and an AC detection mode. When the detection control circuit detects the target power supply panel in DC detection mode, the DC voltmeter V2 measures and displays the DC output operating voltage of the target power supply panel. When the detection control circuit detects the target power supply panel in AC detection mode, the AC voltmeter V3 measures and displays the AC output operating voltage of the target power supply panel.

3. The multifunctional power supply panel module testing device according to claim 2, characterized in that, The detection module also includes an integrated EMI filter unit, a PFC main circuit unit, a DC / AC main circuit unit, and an output filter unit; wherein, the EMI filter unit is used to suppress power grid interference signals; the PFC main circuit unit is used to improve the power factor; the DC / AC main circuit unit is used to realize bidirectional conversion between DC and AC according to the current detection mode of the second switch K2; and the output filter unit is used to filter the converted DC or AC.

4. The multifunctional power supply panel module testing device according to claim 3, characterized in that, The detection module also includes a power supply switching button and a full-bridge rectifier unit; wherein, the power supply switching button is used to switch the power supply mode, the power supply mode includes DC power supply mode and AC power supply mode; the full-bridge rectifier unit is used to convert the input AC power into DC power in AC power supply mode to power the PFC main circuit unit, DC / AC main circuit unit and output filter unit.

5. The multifunctional power supply panel module testing device according to claim 1, characterized in that, The multi-type connector includes a first connector and a second connector, both of which include parallel connectors of different types; the first connector is connected to the detection and control circuit; and the second connector is connected to the voltage regulation circuit.

6. The multifunctional power supply panel module testing device according to claim 1, characterized in that, The voltage regulation circuit includes a third switch K3, an autotransformer, a voltage regulating current A1, and a voltage regulating voltmeter V1. The third switch K3 is used to control the on / off state of the voltage regulation circuit to simulate external power grid fluctuations; the autotransformer is used to adjust the voltage input to the target power supply panel within a preset voltage regulation range; the voltage regulation current A1 is used to measure and display the voltage regulation output operating current of the target power supply panel within the preset voltage regulation range; and the voltage regulation voltmeter V1 is used to measure and display the voltage regulation output operating voltage of the target power supply panel within the preset voltage regulation range.

7. The multifunctional power supply panel module testing device according to claim 6, characterized in that, The preset voltage regulation range of the autotransformer is 176V to 264V.

8. The multifunctional power supply panel module testing device according to claim 6, characterized in that, The multi-functional power supply module testing device also includes a TVS diode, which is connected in parallel with the output terminal of the autotransformer. When the output voltage exceeds the preset voltage regulation range of the autotransformer, the TVS diode is used to clamp and limit the voltage to protect the downstream load.

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