Bidirectional converter device drive board flat cable test tool detection device

Abstract

The utility model discloses a bidirectional converter device drive board flat cable test tool detection device, which comprises a test male head, a power supply terminal, a plurality of groups of LED lamps, a wiring port, a resistor and a power supply pin, the power supply terminal is arranged on the test male head, the plurality of groups of LED lamps are respectively arranged on the test male head, the wiring port is arranged on the test male head, and the resistor is arranged on the wiring port. The number of the wiring ports is two, the two wiring ports are respectively arranged on the testing male head, the number of the resistors is multiple, the multiple resistors are respectively arranged on the testing male head, and the number of the power supply pins is multiple, and the multiple power supply pins are respectively arranged on the testing male head. Therefore, the detection of the wire sequence and the signal of the flat cable are both detected, error checking in the early-stage installation of the power unit is avoided, the working efficiency is improved, error checking in the testing process is reduced, and the device and the method are suitable for the flat cable detection of various industrial devices.

Description

Technical Field

[0001] The utility model relates to the technical field of bidirectional converters, in particular to a detection device for a driving board cable of a bidirectional converter device. Background Art

[0002] The rail train mainly converts AC1180V into DC1500V by a rectifier unit to provide kinetic energy for the train. During the startup process, electrical energy is converted into mechanical energy, and the catenary voltage drops. At this time, the rectifier unit provides traction kinetic energy and maintains the catenary voltage at about 1500V; during the braking process of the train, the catenary voltage rises. Since the rectifier unit does not have the function of recovering electrical energy, it can only consume the excess energy through the on-vehicle resistor. Against this background, the bidirectional converter came into being. The bidirectional converter can not only provide traction kinetic energy during the startup process of the train, but also feedback the excess electrical energy to the high-voltage power supply network during the braking process to realize the recycling of energy. During the working process of the bidirectional converter, it will share the load during the traction of the rectifier unit and extend the service life of the equipment.

[0003] The power unit is the main device for executing the control algorithm. In the early stage of equipment installation and commissioning, the functional detection of the power unit is mainly carried out. Since the power unit has a closed structure, if the internal components are abnormal or there are process errors during the installation process, it will affect the commissioning progress of the equipment. The inspection of key drive and communication components is particularly important. There are two drive boards in the compact power unit: one is a pulse distribution board for pulse calculation and processing, and the other is a large drive board for driving IGBT execution. The two boards are connected by a cable. To detect whether the assembly and function of this cable meet the requirements, the following described detection tooling is made, which can clarify the problem according to the status indicator light, quickly locate the problem point, and avoid disassembling the unit for such faults. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related art to a certain extent.

[0005] Therefore, the purpose of the utility model is to provide a detection device for a driving board cable of a bidirectional converter device, which detects both the line sequence and the signal of the cable, avoids the wrong troubleshooting during the early installation of the power unit, improves the work efficiency, reduces the wrong troubleshooting during the test process, and is applicable to the cable detection of various industrial equipment.

[0006] To achieve the above object, the present utility model provides a detection device for a bidirectional converter device drive board cable test tooling, which includes a test male head, a power supply terminal, LED lights, wiring ports, resistors, and power pins. Among them, the power supply terminal is arranged on the test male head; there are multiple groups of LED lights, and multiple groups of LED lights are respectively arranged on the test male head; there are two groups of wiring ports, and two groups of wiring ports are respectively arranged on the test male head; there are multiple groups of resistors, and multiple groups of resistors are respectively arranged on the test male head; there are multiple groups of power pins, and multiple groups of power pins are respectively arranged on the test male head.

[0007] The detection device for the bidirectional converter device drive board cable test tooling of the present utility model detects both the wire sequence and the signals of the cable, avoiding incorrect troubleshooting during the preliminary installation of the power unit, improving work efficiency, reducing incorrect troubleshooting during the test process, and being applicable to the cable detection of various industrial equipment.

[0008] In addition, the detection device for the bidirectional converter device drive board cable test tooling proposed according to the above application may also have the following additional technical features:

[0009] Specifically, the power supply terminal is electrically connected to the power VCC, and the power supply terminal is electrically connected to the two groups of wiring ports.

[0010] Specifically, the two groups of wiring ports form a detection circuit composed of two cable terminals on the same horizontal line.

[0011] Specifically, the resistance value of the resistor is.KΩ, and one end of the resistor is connected to the ground wire.

[0012] Specifically, each group of wiring ports is respectively provided with a group of detection terminals, and the detection terminals are electrically connected to the LED lights.

[0013] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0015] Figure 1 is a schematic structural diagram of a detection device for a bidirectional converter device drive board cable test tooling according to an embodiment of the present utility model;

[0016] Figure 2 is a schematic diagram of a single-group detection circuit principle of a detection device for a bidirectional converter device drive board cable test tooling according to an embodiment of the present utility model;

[0017] Figure 3 Schematic diagram of the circuit for the detection device of the drive board cable testing tool of the bidirectional converter device according to an embodiment of the present invention;

[0018] Figure 4 Schematic diagram of the circuit with a resistor for the detection device of the drive board cable testing tool of the bidirectional converter device according to an embodiment of the present invention;

[0019] Figure 5 Schematic diagram of the electronic cable for the detection device of the drive board cable testing tool of the bidirectional converter device according to an embodiment of the present invention;

[0020] Figure 6 Schematic diagram of the circuit with an LED lamp for the detection device of the drive board cable testing tool of the bidirectional converter device according to an embodiment of the present invention.

[0021] As shown in the figure: 10, test male head; 20, power supply terminal; 30, LED lamp; 40, connection port; 50, resistor; 60, power supply pin. Detailed implementation manners

[0022] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications and equivalents falling within the spirit and scope of the appended claims.

[0023] The detection device of the drive board cable testing tool of the bidirectional converter device according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0024] As Figure 1-6 shown, the detection device of the drive board cable testing tool of the bidirectional converter device according to the embodiment of the present invention includes a test male head 10, a power supply terminal 20, an LED lamp 30, a connection port 40, a resistor 50 and a power supply pin 60.

[0025] Among them, the power supply terminal 20 is arranged on the test male head 10. The LED lamps 30 are multiple groups, and the multiple groups of LED lamps are respectively arranged on the test male head 10. The connection ports 40 are two groups, and the two groups of connection ports 40 are respectively arranged on the test male head 10. The resistors 50 are multiple groups, and the multiple groups of resistors 50 are respectively arranged on the test male head 10. The power supply pins 60 are multiple groups, and the multiple groups of power supply pins 60 are respectively arranged on the test male head 10.

[0026] It should be noted that the flexible cable structure with testing in this embodiment is composed of an 8-cm 30P flexible cable and two 2x15 piercing male connectors. Add the flexible cable to the plug pins according to the consistent wire sequence, that is, the flexible cable with the red mark is in the same order as the terminal. Use a special tool to apply uniform force on the upper plane of the male connector. After the buckles on both sides of the male connector enter the wiring port 40 and are limited, the crimping operation is completed and the testing starts.

[0027] In an embodiment of the present invention, as Figure 2 and Figure 3 shown, the power connection terminal 20 is electrically connected to the power supply VCC5, and the power connection terminal 20 is electrically connected to two groups of wiring ports 40.

[0028] It should be noted that the positive and negative power supplies on the power supply VCC5 are respectively connected to the flexible cable terminals in the wiring port 40. After the flexible cable is installed, the current will pass through the flexible cable corresponding to the cable1 pin, pass through cable2, and then return to the power supply negative pole. A light-emitting diode is connected to both ends of the detection terminal, and the correctness of this line can be judged by the state of the diode.

[0029] In an embodiment of the present invention, as Figure 1 - Figure 6 shown, two groups of flexible cable terminals located on the same horizontal line in the two groups of wiring ports 40 form a detection circuit.

[0030] It should be noted that the two groups of flexible cable terminals are respectively connected to the power supply positive pole and the power supply negative pole, and are connected to the ground wire, thus forming a circuit. Whether the line is correct can be judged by whether the light-emitting diode on the circuit can emit light normally.

[0031] In an embodiment of the present invention, as Figure 6 shown, the resistance value of the resistor 50 is 4.7 KΩ, and one end of the resistor 50 is connected to the ground wire.

[0032] A resistor load is provided on the detection line. The load resistor used is relatively small, and thus a relatively large current will be generated, which verifies the functionality of the flexible cable from the side.

[0033] In an embodiment of the present invention, as Figure 1 and Figure 4 shown, each group of wiring ports 40 is respectively provided with 15 groups of detection terminals, and the detection terminals are electrically connected to the LED lamp 30.

[0034] It should be noted that the detection ports are reduced from the initial 30 pairs to 15 pairs, and both the detection of the wire sequence and the signal of the flexible cable are detected.

[0035] Principle of the detection tooling: The detection device is powered by 5V. A fuse is added from the power supply to the cable detection port to prevent damage to the cable. A boat-shaped switch is used to control the on / off of the circuit. A 30-pin electronic cable is used. In order to detect whether the wire sequence is disordered and whether there is a virtual connection deviation during crimping, if only the on / off of a single cable is detected, only whether the crimping is normal can be detected, and the wire sequence cannot be checked. Therefore, a method of using adjacent cables to form a group of detection circuits is adopted. For example, cable1 and cable2 of the electronic cable are formed into a group. The two cable terminals on the base side of the power supply side are respectively connected to the positive and negative power supplies. After the cable is installed, the current will pass through the cable corresponding to the cable1 pin, pass through cable2, and then return to the negative power supply. A light-emitting diode is connected between the two detection terminals, and the correctness of this line can be judged by the state of the diode. Since the light-emitting diode is unidirectional conduction, it will not light up when the wire sequence is incorrect or reversed. In addition, the terminal passes through a resistive load. Since cables 1-4 are power supply terminals and the load resistance used is small, a relatively large current will be generated, which also verifies the functionality of the cable from the side. The detection port is reduced from the initial 30 pairs to 15 pairs, and both the wire sequence detection and the cable signal are detected.

[0036] In summary, the detection device of the bidirectional converter device drive board cable testing tooling in the embodiment of the present invention detects both the wire sequence and the cable signal, avoids incorrect troubleshooting in the early installation of the power unit, improves work efficiency, reduces incorrect troubleshooting during the testing process, and is applicable to the cable detection of various industrial equipment.

[0037] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A bidirectional converter device drive board wiring test fixture detection device, characterized in that: It comprises a test male connector (10), a power connection terminal (20), an LED lamp (30), a connection port (40), a resistor (50) and a power pin (60), wherein: The power connection terminal (20) is arranged on the test male connector (10); The LED lights (30) are in multiple groups, and the multiple groups of LED lights are respectively arranged on the test male connector (10); The wiring ports (40) are in two groups, and the two groups of wiring ports (40) are respectively arranged on the test male connector (10); The resistors (50) are multiple groups, and the multiple groups of resistors (50) are respectively arranged on the test male connector (10); The power pins (60) are multiple groups, and the multiple groups of power pins (60) are respectively arranged on the test male connector (10).

2. The bidirectional converter device drive board wiring test fixture detection device according to claim 1, characterized in that: The power connection terminal (20) is electrically connected to a power source VCC5, and the power connection terminal (20) is electrically connected to two groups of connection ports (40).

3. The bidirectional converter device drive board wiring test fixture detection device according to claim 1, characterized in that: The two groups of wiring ports (40) are located on the same horizontal line and the two groups of wiring terminals constitute a detection loop.

4. The bidirectional converter device drive board wiring test fixture detection device according to claim 1, characterized in that: The resistance value of the resistor (50) is 4.7KΩ, and one end of the resistor (50) is connected to the ground wire.

5. The bidirectional converter device drive board wiring test fixture detection device according to claim 1, characterized in that: Each group of the wiring ports (40) is respectively provided with 15 groups of detection terminals, and the detection terminals are electrically connected to the LED lamps (30).

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