MINI-type unified under-train power supply three-in-one starting detector for passenger train

Abstract

The utility model discloses a three-in-one starting detector for a MINI-type unified under-train power supply of a passenger train, and particularly relates to the technical field of the MINI-type unified under-train power supply of the passenger train, which comprises three signal generators (V1, V2 and V3), an indicating lamp, a connecting line and a standard DB25 male port serial port connector, the three signal generators (V1, V2 and V3) and the indicating lamp are arranged in the detector, and the connecting line is connected with the standard DB25 male port serial port connector. And the connecting wire and the standard DB25 male port serial port connector are connected with the detector box body. According to the utility model, the states of the main control board and the whole machine accessories are correctly judged by detecting the vehicle to be hung in time, so that the maintenance operation of an off-vehicle power supply in a state that power cannot be supplied on site is solved, and the functions of maintenance test and fault processing are completed on a standby vehicle, a three-new vehicle and a fault vehicle under the condition of no DC600V ground power supply cabinet; the device does not depend on the limitation of the number of station tracks of a ground power supply cabinet, the overhaul operation efficiency is greatly improved, the device burning loss caused by faults is reduced, and the material cost can be further saved.

Description

Technical Field

[0001] The utility model relates to the field of MINI type railway passenger car undercarriage power supply, in particular to a three-in-one starting detector for MINI type railway passenger car undercarriage power supply. Background Art

[0002] The DC600V passenger train power supply system adopts centralized rectification in the locomotive and decentralized inversion in the passenger car to supply power to the train compartments. That is, the entire train is powered by DC600V. Inverters and chargers convert the 600V DC power supply into AC power supply for the passenger car compartments. The power supply under the car needs to be inspected and tested before the car is put into use.

[0003] The traditional test method is to input a DC600V power supply into the carriage to be inspected to observe whether the power supply under the vehicle (inverter, charger, single inverter) is normal. However, when the equipment has an invisible fault, multiple faults will occur after power is turned on, which will cause device burnout. In addition, the differences in products from different manufacturers increase the difficulty and time of undercarriage power supply maintenance. At the same time, the number of DC600V ground power cabinets equipped on site is limited. When facing a large number of three new cars, it is difficult to meet the testing requirements of the undercarriage power supply in front of the trailer. If the power supply conditions are not met, the undercarriage power supply test cannot be carried out in advance, and the equipment status of the undercarriage power supply of the passenger car cannot be accurately judged, which may cause the use of the faulty carriage, which not only delays the time for fault handling, but also affects the on-time departure of the train. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a railway passenger car MINI type unified undercarriage power three-in-one starting detector, comprising: three signal generators (V1, V2, V3), indicator lights, connecting wires, and a standard DB25 male serial port connector. The three signal generators (V1, V2, V3) and the indicator lights are built into the detector, the connecting wires and the standard DB25 male serial port connector are connected to the detector box, the standard DB25 male serial port connector is a CX1 interface, and the CX1 includes ports P1 to P25 for connecting to the undercarriage power XP1 interface.

[0005] Preferably, the three signal generators (V1, V2, V3) are used to generate simulated vehicle-mounted DC600V sensor signals, and the signal generating module has three built-in signal generators corresponding to three signal outputs.

[0006] Preferably, the CX1 is connected to 7 power positive signal inputs, which are respectively connected to the positive power receiving terminal inputs of the signal generator V1, the signal generator V2, and the signal generator V3.

[0007] Preferably, the CX1 is connected to 5 power supply negative electrode signal inputs, which are respectively connected to the negative electrode receiving terminal inputs of the signal generator V1, the signal generator V2, and the signal generator V3.

[0008] Preferably, the CX1 is connected to two grounding terminals, which are respectively connected to the grounding ports of the signal generator V1, the signal generator V2, and the signal generator V3.

[0009] Preferably, the signal generator V1 outputs a 600V sensor analog current signal at the front end of the under-vehicle power supply.

[0010] Preferably, the signal generator V2 outputs a 600V sensor analog current signal at the rear end of the under-vehicle power supply.

[0011] Preferably, the signal generator V3 outputs a simulated current signal of a 380V sensor of the under-vehicle power supply.

[0012] Preferably, the indicator light is connected to the power input port under the vehicle via a standard DB25 male serial port, and the state of the indicator light is used to display the state of the detected input power supply.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. Through timely inspection of the to-be-connected vehicles, the status of the main control board and the complete machine accessories can be correctly judged, and the maintenance work of the power supply under the vehicle can be solved when the power supply is unavailable on site. The spare vehicles, three new vehicles, and faulty vehicles can complete the maintenance test and troubleshooting functions without the DC600V ground power cabinet, without relying on the limitation of the number of tracks of the ground power cabinet, which greatly improves the efficiency of maintenance work, reduces the burning of components caused by faults, and can further save material costs.

[0015] 2. The sensor signal is simulated by the signal generator and connected to the signal acquisition module of the main control board. It has the same test conditions as those under the DC600V power supply state, and realizes the offline detection of the under-vehicle power supply without the DC600V condition. Through the portable design, the integrated detection module simplifies the use process, is compatible with the standard interface, shortens the detection and processing time of the under-vehicle power supply equipment, and provides a good environmental condition for the personal safety of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1This is a schematic diagram of the box, indicator light, connecting wires and interfaces of the utility model;

[0018] Figure 2 This is a connection diagram of the built-in indicator light, signal generator and serial port of the utility model. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] Reference Figure 1-Figure 2 As shown, a railway passenger car MINI type unified undercarriage power three-in-one starting detector comprises: three signal generators (V1, V2, V3), indicator lights, connecting wires, and a standard DB25 male serial port connector. The three signal generators (V1, V2, V3) and the indicator lights are built in the detector. The connecting wires and the standard DB25 male serial port connector are connected to the detector box. The standard DB25 male serial port connector is a CX1 interface. CX1 includes ports P1 to P25 for connecting to the undercarriage power XP1 interface. The serial port is uniformly defined to adapt to products from different manufacturers, so as to realize the starting test function of the main control board in the state of no DC600V and sensor separation. The standard DB25 serial port defines the input pins of the undercarriage power interface, and provides a 15V power supply for the railway passenger car MINI type unified undercarriage power three-in-one starting detector. The indicator light is connected to the undercarriage power input port through the serial port to detect the input power and prompt whether the power supply is valid.

[0021] Furthermore, three signal generators (V1, V2, V3) are used to generate simulated vehicle-mounted DC600V sensor signals, and the signal generation module has three built-in signal generators corresponding to three signal outputs.

[0022] Furthermore, CX1 is connected to 7 power supply positive signal inputs, which are respectively connected to the positive power receiving terminal inputs of signal generator V1, signal generator V2, and signal generator V3.

[0023] Furthermore, CX1 is connected to 5 negative power signal inputs, which are respectively connected to the negative power receiving terminal inputs of signal generator V1, signal generator V2, and signal generator V3.

[0024] Furthermore, CX1 is connected to two grounding terminals, which are respectively connected to the grounding ports of the signal generator V1, the signal generator V2, and the signal generator V3.

[0025] Furthermore, the signal generator V1 outputs a simulated current signal of a 600V sensor at the front end of the under-vehicle power supply.

[0026] Furthermore, the signal generator V2 outputs a simulated current signal of a 600V sensor at the rear end of the undercar power supply.

[0027] Furthermore, the signal generator V3 outputs the analog current signal of the 380V sensor of the under-vehicle power supply.

[0028] Furthermore, the indicator light is connected to the power input port under the vehicle through a standard DB25 male serial port. The state of the indicator light is used to display the detection input power state. The standard DB25 male serial port is adapted to the connection ports of all vehicle models and different manufacturers.

[0029] Through the above technical solution:

[0030] When in use, unplug the XP1 interface of the vehicle power main control board, plug in the CX1 plug of the start detector, turn on the vehicle power control switch, and the start detector will get the working power from the XP1 interface of the vehicle power, and the green indicator light will be on. The three signal generators in the start detector will send out V1, V2, and V3 start signals respectively. At this time, the vehicle power under test will receive the start signal and send out instructions to put the whole machine in working state.

[0031] After plugging in the starter tester, if the indicator light is off, it means that there is a fault in the undercar power supply. Please check the undercar power supply. After plugging in the starter tester, the indicator light is on and the tester starts to output current signals. If there is a fault in the components of the undercar power supply, the undercar power supply main control board will report the corresponding fault information and provide it to the maintenance personnel for fault handling.

[0032] The indicator light is on, and the off-vehicle power supply main control board displays 00, indicating that the off-vehicle power supply board is in good working condition. The off-vehicle power supply main control board displays 01, indicating that the input voltage is too high, please check the main control board. The off-vehicle power supply main control board displays 02, indicating that the input is undervoltage, please check the main control board. The off-vehicle power supply main control board displays 03, indicating that the output voltage is overvoltage, please check the main control board. The off-vehicle power supply main control board displays 04, indicating that the output voltage is undervoltage, please check the main control board. The off-vehicle power supply main control board displays 05, indicating that the output is overcurrent, please check the driver board, IGBT module, and output transformer. The off-vehicle power supply main control board displays 06, indicating that the output is overloaded, please check the driver board and IGBT module. The off-vehicle power supply main control board displays 07, please check the IGBT module. The off-vehicle power supply main control board displays 0C, please check the pre-charging contactor and resistor. The off-vehicle power supply main control board displays 0E, please check the input and output contactors.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A railway passenger car MINI type unified vehicle undercarriage power three-in-one starting detector, characterized in that: include: Three signal generators V1, V2, V3, indicator lights, connecting wires, a standard DB25 male serial port connector and a signal generating module. The three signal generators V1, V2, V3 and indicator lights are built into the detector. The connecting wires and the standard DB25 male serial port connector are connected to the detector box. The standard DB25 male serial port connector is a CX1 interface. The CX1 includes ports P1 to P25 for connecting to the XP1 interface of the under-vehicle power supply.

2. A railway passenger car MINI type unified undercarriage power three-in-one starting detector according to claim 1, characterized in that: The three signal generators V1, V2, and V3 are used to generate simulated vehicle-mounted DC600V sensor signals, and the signal generating module has three built-in signal generators corresponding to three signal outputs.

3. A railway passenger car MINI type unified undercarriage power three-in-one starting detector according to claim 1, characterized in that: The CX1 is connected to 7 power supply positive signal inputs, which are respectively connected to the positive power receiving terminal inputs of the signal generator V1, the signal generator V2, and the signal generator V3.

4. A railway passenger car MINI type unified undercarriage power three-in-one starting detector according to claim 1, characterized in that: The CX1 is connected to 5 power supply negative signal inputs, which are respectively connected to the negative power receiving terminal inputs of the signal generator V1, the signal generator V2, and the signal generator V3.

5. The three-in-one starting detector for the MINI type undercarriage power supply of a railway passenger car according to claim 1 is characterized in that: The CX1 is connected to two grounding terminals, which are respectively connected to the grounding ports of the signal generator V1, the signal generator V2, and the signal generator V3.

6. A railway passenger car MINI type unified undercarriage power three-in-one starting detector according to claim 1, characterized in that: The signal generator V1 outputs a 600V sensor analog current signal at the front end of the under-vehicle power supply.

7. A railway passenger car MINI type unified undercarriage power three-in-one starting detector according to claim 1, characterized in that: The signal generator V2 outputs a 600V sensor analog current signal at the rear end of the under-vehicle power supply.

8. The railway passenger car MINI type undercarriage power three-in-one starting detector according to claim 1 is characterized in that: The signal generator V3 outputs the analog current signal of the 380V sensor of the under-vehicle power supply.

9. A railway passenger car MINI type undercarriage power three-in-one starting detector according to claim 1, characterized in that: The indicator light is connected to the power input port under the vehicle through a standard DB25 male serial port, and the state of the indicator light is used to display the detection input power state.

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