Debugging device and method for air compressor unit level maintenance mode of motor train unit

Abstract

The present application relates to a debugging device and method for a motor train unit air compressor unit in a unit level maintenance mode, which comprises, in sequence, a ground AC 220V power supply, a motor train unit air compressor unit level debugging device and a motor train unit air compressor unit connected by connecting cables. The debugging device and method for a motor train unit air compressor unit in a unit level maintenance mode can make the motor train unit in a disassembled state no longer need a train central control unit to control a local digital input and output device of a single train through a train data bus, and no longer need a prerequisite of a vehicle itself medium and low voltage test, so as to complete all the motor train unit air compressor unit test and debugging work in a unit level mode in a single unit incomplete stage. Thus, the test procedure is no longer limited by a site; meanwhile, labor intensity is reduced, an operation process is simplified, and production efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of high-speed train manufacturing technology, and in particular to a debugging device and method for a unit-level maintenance mode of an air compressor in a high-speed train. Background Technology

[0002] The air compressor in a high-speed train is the most critical air supply equipment for the train's traction, braking, lavatory, and exterior door systems, directly impacting the train's operational status. Previously, the air compressor unit's maintenance and testing required the entire trainset to be assembled (the whole-train commissioning process), and the train network established with stable medium or high voltage (the air compressor unit needed a stable operating voltage) before any tests could be conducted. During the whole-train commissioning process, if the air compressor unit experienced internal wiring or component damage, the entire unit had to be replaced. Replacing the air compressor unit not only limited the testing space but also required a large number of personnel for disassembly, replacement, installation, and site cleanup, resulting in extremely high labor intensity. Furthermore, the replacement process was time-consuming, halting all testing procedures and severely impacting the production cycle and hindering production.

[0003] When a high-speed train is decoupled, meaning it's a single, unfinished car (single-car commissioning), the realization of full functional testing of the air compressor unit requires the train's central control unit to control the local digital input / output devices of that single car via the train data bus (assuming the network for the entire train commissioning process is established correctly). Furthermore, the car needs both low-voltage and medium-voltage electricity (low-voltage refers to DC 110V, medium-voltage refers to AC 380V). Current single-car commissioning testing methods cannot test all components involved in the actual operation of the air compressor unit, and the final results of the air compressor unit tests cannot be fully verified during single-car commissioning. Summary of the Invention

[0004] The present invention aims to solve the technical problems in the prior art by providing a debugging device and method for the unit-level maintenance mode of the air compressor of a high-speed train.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] A commissioning method for a high-speed train air compressor unit-level maintenance mode, wherein the commissioning device applicable to the commissioning method includes, in sequence, the following components connected by connecting cables: a ground AC220V power supply, a high-speed train air compressor unit-level commissioning device, and a high-speed train air compressor unit.

[0007] The ground-based AC220V power supply provides power to the EMU air compressor unit-level debugging device;

[0008] The EMU air compressor unit-level debugging device includes: an AC220V to AC380V control transformer, an AC220V to DC110V control transformer, an air compressor main circuit panel circuit, and an air compressor control circuit panel circuit. The air compressor main circuit panel circuit and the air compressor control circuit panel circuit are connected by connecting cables. The AC220V to AC380V control transformer is connected to the air compressor main circuit panel circuit to provide power to it. The AC220V to DC110V control transformer is connected to the air compressor control circuit panel circuit to provide power to it. The air compressor main circuit panel circuit is used to control the air compressor startup. The air compressor control circuit panel circuit is used to control the air compressor main circuit panel circuit, thereby controlling the corresponding test functions of the EMU air compressor unit.

[0009] The EMU air compressor unit includes: electrical circuit and related device tests for air compressor startup, electrical circuit and related device tests for air compressor dual-tower dryer startup, electrical circuit and related device tests for air compressor dual-tower dryer switching, electrical circuit and related device tests for air compressor oil temperature protection, electrical circuit and related device tests for air compressor pressure switch protection, electrical circuit and related device tests for air compressor heater startup, electrical circuit and related device tests for air compressor timer startup, and air compressor Harding plug connection adapter;

[0010] The electrical circuit and related device tests for starting the air compressor are connected to the EMU air compressor unit-level debugging device via the air compressor Harding connector adapter and the third connecting cable. The electrical circuit and related device tests for starting the air compressor twin-tower dryer, switching the air compressor twin-tower dryer, protecting the air compressor oil temperature, protecting the air compressor pressure switch, starting the air compressor heater, and starting the air compressor timer are respectively connected to the EMU air compressor unit-level debugging device via the air compressor Harding connector adapter and the fourth connecting cable.

[0011] The debugging method includes the following steps:

[0012] Step i: The AC220V power supply from the ground provides working power to the AC220V to DC110V control transformer of the EMU air compressor unit-level debugging device through the connecting cable. The AC220V to DC110V control transformer converts the AC220V voltage to DC110V voltage, providing working voltage for the air compressor control circuit panel circuit. According to the corresponding logic function requirements of the selected test item, the air compressor control circuit panel circuit implements the corresponding function, and then controls the air compressor starting relay of the air compressor main circuit panel circuit to be energized and closed.

[0013] Step ii: The AC220V ground power supply provides working power to the AC220V to AC380V control transformer of the EMU air compressor unit-level debugging device through connecting cables. The AC220V to AC380V control transformer converts the AC220V voltage to AC380V voltage to provide working voltage for the air compressor main circuit panel circuit. The air compressor main circuit panel circuit is connected to the air compressor Harding connector adapter of the EMU air compressor unit through connecting cables, and then to the electrical circuit and related components of the air compressor start-up section to complete the relevant tests of the selected test items.

[0014] In the above technical solution, the main circuit panel of the air compressor includes, in sequence: a first circuit relay, a first terminal block, a first air switch, a first control button, a first changeover switch, and a first Harding plug adapter for connection with the EMU.

[0015] In the above technical solution, the air compressor control circuit panel includes, in sequence: a second circuit relay, a second terminal block, a second air switch, a second control button, a second changeover switch, and a second Harding plug connector adapter connected to the EMU.

[0016] In the above technical solution, the air compressor control circuit panel circuit controls the air compressor main circuit panel circuit through the fifth connecting cable.

[0017] A debugging device for a high-speed train air compressor unit-level maintenance mode includes: a ground AC220V power supply, a high-speed train air compressor unit-level debugging device, and a high-speed train air compressor unit connected in sequence by connecting cables.

[0018] The ground-based AC220V power supply provides power to the EMU air compressor unit-level debugging device;

[0019] The EMU air compressor unit-level debugging device includes: an AC220V to AC380V control transformer, an AC220V to DC110V control transformer, an air compressor main circuit panel circuit, and an air compressor control circuit panel circuit. The air compressor main circuit panel circuit and the air compressor control circuit panel circuit are connected by connecting cables. The AC220V to AC380V control transformer provides power to the air compressor main circuit panel circuit. The AC220V to DC110V control transformer provides power to the air compressor control circuit panel circuit. The air compressor main circuit panel circuit controls the air compressor startup. The air compressor control circuit panel circuit controls both the air compressor main circuit panel circuit and the air compressor control circuit panel circuit, thereby controlling the corresponding test functions of the EMU air compressor unit.

[0020] The EMU air compressor unit includes: electrical circuit and related device tests for air compressor startup, electrical circuit and related device tests for air compressor dual-tower dryer startup, electrical circuit and related device tests for air compressor dual-tower dryer switching, electrical circuit and related device tests for air compressor oil temperature protection, electrical circuit and related device tests for air compressor pressure switch protection, electrical circuit and related device tests for air compressor heater startup, electrical circuit and related device tests for air compressor timer startup, and air compressor Harding plug connection adapter;

[0021] The electrical circuit and related device tests for starting the air compressor are connected to the EMU air compressor unit-level debugging device via the air compressor Harding connector adapter and the third connecting cable. The electrical circuit and related device tests for starting the air compressor twin-tower dryer, switching the air compressor twin-tower dryer, protecting the air compressor oil temperature, protecting the air compressor pressure switch, starting the air compressor heater, and starting the air compressor timer are respectively connected to the EMU air compressor unit-level debugging device via the air compressor Harding connector adapter and the fourth connecting cable.

[0022] In the above technical solution, the main circuit panel of the air compressor includes, in sequence: a first circuit relay, a first terminal block, a first air switch, a first control button, a first changeover switch, and a first Harding plug adapter for connection with the EMU.

[0023] In the above technical solution, the air compressor control circuit panel includes, in sequence: a second circuit relay, a second terminal block, a second air switch, a second control button, a second changeover switch, and a second Harding plug connector adapter connected to the EMU.

[0024] In the above technical solution, the air compressor control circuit panel circuit controls the air compressor main circuit panel circuit through the fifth connecting cable.

[0025] The present invention has the following beneficial effects:

[0026] The debugging device and method for the unit-level maintenance mode of the EMU air compressor of the present invention enables the EMU to complete the unit testing and debugging of all EMU air compressors in the unit-level mode even when the EMU is in a decoupled state. This eliminates the need for the train central control unit to control the local digital input / output devices of individual train cars through the train data bus, and also eliminates the prerequisites for testing the medium and low voltage electricity (medium voltage refers to AC380V, low voltage refers to DC110V) of the vehicle itself. This allows the entire EMU air compressor unit to be tested and debugged in a unit-level mode even when individual cars are not yet completed. Therefore, this testing process is no longer limited by site constraints; at the same time, it reduces labor intensity, simplifies the work process, and greatly improves production efficiency. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a schematic diagram of the debugging device in the unit-level maintenance mode of the EMU air compressor of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of the EMU air compressor unit-level debugging device in the debugging device of the EMU air compressor unit-level maintenance mode of the present invention.

[0030] Figure 3 This is a schematic diagram of the structure of the EMU air compressor unit in the commissioning device of the EMU air compressor unit-level maintenance mode of the present invention.

[0031] The reference numerals in the figure are:

[0032] 100 - Ground AC220V power supply; 200 - EMU air compressor unit-level debugging device; 300 - EMU air compressor unit;

[0033] 21-First connecting cable; 22-Second connecting cable; 23-Third connecting cable; 24-Fourth connecting cable; 25-Fifth connecting cable;

[0034] 10-AC220V to AC380V control transformer;

[0035] 20-AC220V to DC110V control transformer;

[0036] 30 - Air compressor main circuit panel circuit;

[0037] 40 - Air compressor control circuit panel circuit;

[0038] 50-Mesh plate fixing device;

[0039] 301-Air compressor Harding plug connector adapter;

[0040] 310 - Testing of electrical circuits and related components for starting the air compressor;

[0041] Electrical circuit and related component testing for starting up the 320-air compressor twin-tower dryer;

[0042] Testing of electrical circuitry and related components for the conversion of the 330-air compressor twin-tower dryer;

[0043] Testing of electrical circuitry and related components for oil temperature protection of 340-air compressor;

[0044] Testing of electrical circuits and related components protected by the pressure switch of the 350-air compressor;

[0045] Testing of the electrical circuit and related components for starting the 360° air compressor heater;

[0046] Test of electrical circuits and related components for starting the 370-air compressor timer. Detailed Implementation

[0047] The inventive concept of this invention is as follows:

[0048] The present invention provides a debugging device and method for the unit-level maintenance of air compressors in high-speed trains. This addresses the problems in existing technologies where, during the maintenance and testing of air compressor units in high-speed trains, the entire trainset must be assembled in the entire train testing area, the trainset network must be established, and the medium or high pressure of the vehicles must be stable before the relevant test items for the air compressor unit can be carried out and completed. Alternatively, it addresses the inability to conduct all tests during the single-stage testing phase of the vehicle's maintenance process. The invention provides a debugging method for the unit-level maintenance of air compressors in high-speed trains (unit-level maintenance refers to the repair and maintenance of a single item or device, such as an air compressor unit).

[0049] The present invention will now be described in detail with reference to the accompanying drawings.

[0050] like Figure 1As shown, the commissioning device for the EMU air compressor unit-level maintenance mode of the present invention mainly includes three parts: a ground AC220V power supply 100, an EMU air compressor unit-level commissioning device 200, and an EMU air compressor unit 300. The ground AC220V power supply 100 is a common power supply in the commissioning workshop, mainly providing power to the EMU air compressor unit-level commissioning device 200. The EMU air compressor unit-level commissioning device 200 is connected to the third connecting cable 23 and the fourth connecting cable 24 via the air compressor Harding connector adapter 301 of the EMU air compressor unit 300. This allows for the verification of the corresponding air compressor unit's test functions through the air compressor main circuit panel 30 and the air compressor control circuit panel 40 of the EMU air compressor unit-level commissioning device 200.

[0051] Figure 2 This is a diagram of the unit-level debugging device 200 for the air compressor of a high-speed train. The AC220V to AC380V control transformer 10 converts the AC220V power supply 100 from the ground to AC380V via the first connecting cable 21, providing the AC380V operating voltage for the air compressor main circuit panel circuit 30. The AC220V to DC110V control transformer 20 converts the AC220V power supply 100 from the ground to DC110V via the second connecting cable 22, providing the DC110V operating voltage for the air compressor control circuit panel circuit 40. The air compressor main circuit panel circuit 30 is one of the core components of the unit-level debugging device 200 for the high-speed train air compressor. It is designed based on the logic function diagram of the actual high-speed train air compressor main circuit, and includes a first circuit relay, a first terminal block, a first air switch, and a first control button. The combination of components such as the first changeover switch realizes the corresponding functions, and is connected to the air compressor Harding connector adapter 301 of the EMU air compressor unit 300 through the third connecting cable 23. The air compressor main circuit panel circuit 30 realizes the functions of the EMU air compressor unit 300 to control the corresponding functions of the EMU air compressor unit 300. The air compressor control circuit panel circuit 40 is another core component of the EMU air compressor unit-level debugging device 200. It is designed according to the logic function diagram of the actual EMU air compressor control circuit. The combination of components such as the second circuit relay, the second terminal block, the second air switch, the second control button, and the second changeover switch realizes the corresponding functions, and is connected to the air compressor Harding connector adapter 301 of the EMU air compressor unit 300 through the fourth connecting cable 24. The air compressor control circuit panel circuit 40 realizes the functions of the EMU air compressor unit 300 to control the corresponding functions of the EMU air compressor unit 300.

[0052] Meanwhile, the air compressor control circuit panel 40 controls the air compressor main circuit panel 30 through the fifth connecting cable 25, thereby realizing the functional test of the air compressor main circuit. In other words, the air compressor control circuit panel 40 controls the air compressor main circuit panel 30. The perforated plate fixing device 50 fixes all electrical components of the AC220V to AC380V control transformer 10, AC220V to DC110V control transformer 20, air compressor main circuit panel 30, and air compressor control circuit panel 40, and is movable for easy use.

[0053] like Figure 3 As shown, the EMU air compressor unit 300 is an onboard device provided by the vehicle. The EMU air compressor unit 300 includes: electrical circuit and related device test 310 for air compressor start-up, electrical circuit and related device test 320 for air compressor dual-tower dryer start-up, electrical circuit and related device test 330 for air compressor dual-tower dryer switching, electrical circuit and related device test 340 for air compressor oil temperature protection, electrical circuit and related device test 350 for air compressor pressure switch protection, electrical circuit and related device test 360 for air compressor heater start-up, electrical circuit and related device test 370 for air compressor timer start-up, and air compressor Harding plug connection adapter 301. The electrical circuit and related device test 310 for starting the air compressor is connected to the EMU air compressor unit-level debugging device 200 via the air compressor Harding connector adapter 301 and the third connecting cable 23; the electrical circuit and related device test 320 for starting the air compressor double tower dryer, the electrical circuit and related device test 330 for switching the air compressor double tower dryer, the electrical circuit and related device test 340 for air compressor oil temperature protection, the electrical circuit and related device test 350 for air compressor pressure switch protection, the electrical circuit and related device test 360 for starting the air compressor heater, and the electrical circuit and related device test 370 for starting the air compressor timer are connected to the EMU air compressor unit-level debugging device 200 via the air compressor Harding connector adapter 301 and the fourth connecting cable 24. The components of the following tests are all known in the field: electrical circuit and related device test for air compressor startup 310, electrical circuit and related device test for air compressor dual-tower dryer startup 320, electrical circuit and related device test for air compressor dual-tower dryer switching 330, electrical circuit and related device test for air compressor oil temperature protection 340, electrical circuit and related device test for air compressor pressure switch protection 350, electrical circuit and related device test for air compressor heater startup 360, and electrical circuit and related device test for air compressor timer startup 370. The components are composed of any general-purpose electrical components and are all modules known in the field.

[0054] The debugging method of the EMU air compressor unit-level maintenance mode of the present invention will be described in detail below.

[0055] Taking "Test 310 on electrical circuits and related components for air compressor startup" as an example

[0056] In the first process, the ground AC220V power supply 100 provides working power to the AC220V to DC110V control transformer 20 of the EMU air compressor unit-level debugging device 200 through the second connecting cable 22. The AC220V to DC110V control transformer 20 converts the AC220V voltage to DC110V voltage to provide working voltage for the air compressor control circuit panel circuit 40. According to the corresponding logical function requirements of "Electrical circuit and related device test 310 for air compressor start-up", the air compressor control circuit panel circuit 40 realizes the corresponding function through the combination of relays, terminal blocks, air switches, control buttons, changeover switches and other devices in its panel circuit. Then, through the fifth connecting cable 25, it controls the air compressor start relay in the air compressor main circuit panel circuit 30 to be energized and closed.

[0057] In the second process, the ground AC220V power supply 100 provides working power to the AC220V to AC380V control transformer 10 of the EMU air compressor unit-level debugging device 200 through the first connecting cable 21. The AC220V to AC380V control transformer 10 then converts the AC220V voltage to AC380V voltage to provide working voltage for the air compressor main circuit panel circuit 30. Since in the first process, the air compressor control circuit panel circuit 40 controls the air compressor starting relay in the air compressor main circuit panel circuit 30 to be energized and closed through the fifth connecting cable 25, the air compressor main circuit panel circuit 30 is connected to the air compressor Harding connector adapter 301 of the EMU air compressor unit 300 through the third connecting cable 23, and then to the electrical circuit and related devices 310 for air compressor starting, completing the relevant tests of "Electrical circuit and related devices test 310 for air compressor starting".

[0058] Taking "Electrical circuit and related component test 320 for starting up a twin-tower air compressor dryer" as another example

[0059] The AC220V power supply 100 from the ground provides working power to the AC220V to DC110V control transformer 20 of the EMU air compressor unit-level debugging device 200 through the second connecting cable 22. The AC220V to DC110V control transformer 20 converts the AC220V voltage to DC110V voltage to provide working voltage for the air compressor control circuit panel circuit 40. According to the corresponding logical function requirements of "Electrical circuit and related device test 320 for starting the air compressor dual-tower dryer", the air compressor control circuit panel circuit 40 realizes the corresponding function through the combination of relays, terminal blocks, air switches, control buttons, changeover switches and other devices in its panel circuit. Then, it is connected to the air compressor Harding plug connector 301 of the EMU air compressor unit 300 through the fourth connecting cable 24, and then to the electrical circuit and related device 320 section for starting the air compressor dual-tower dryer to complete the relevant test of "Electrical circuit and related device test 320 for starting the air compressor dual-tower dryer".

[0060] In other specific embodiments, the testing processes for the electrical circuits and related devices of the air compressor dual-tower dryer switching test 330, the air compressor oil temperature protection test 340, the air compressor pressure switch protection test 350, the air compressor heater start-up test 360, and the air compressor timer start-up test 370 are the same as the above-mentioned air compressor dual-tower dryer start-up electrical circuits and related devices test 320, and will not be repeated here.

[0061] The debugging device and method for the unit-level maintenance mode of the EMU air compressor of this invention enables the EMU to be in a decoupled state without the need for the train central control unit to control the local digital input / output devices of individual train cars through the train data bus, and without the prerequisite of testing the medium and low voltage electricity (medium voltage refers to AC380V, low voltage refers to DC110V) of the vehicle itself. This allows the entire EMU air compressor unit to be tested and debugged in a unit-level mode while the individual cars are still under construction. This removes site restrictions from the testing process, reduces labor intensity, simplifies the workflow, and greatly improves production efficiency.

[0062] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A debugging method for a unit-level maintenance mode of an air compressor in a high-speed train, characterized in that, The debugging device applicable to this debugging method includes, in sequence, the following components connected by connecting cables: ground AC220V power supply (100), EMU air compressor unit-level debugging device (200), and EMU air compressor unit (300). The ground AC220V power supply (100) provides power to the EMU air compressor unit-level debugging device (200); The unit-level debugging device (200) for the air compressor of the high-speed train includes: an AC220V to AC380V control transformer (10), an AC220V to DC110V control transformer (20), an air compressor main circuit panel circuit (30), and an air compressor control circuit panel circuit (40); the air compressor main circuit panel circuit (30) and the air compressor control circuit panel circuit (40) are connected by connecting cables; the AC220V to AC380V control transformer (10) and the air compressor main circuit panel circuit (30) are connected by connecting cables. The AC220V to DC110V control transformer (20) is connected to the air compressor control circuit panel (40) to provide power to the air compressor control circuit panel (40); the air compressor main circuit panel (30) is used to control the start of the air compressor; the air compressor control circuit panel (40) is used to control the air compressor main circuit panel (30), thereby controlling the corresponding test functions of the EMU air compressor unit; The EMU air compressor unit (300) includes: electrical circuit and related device test for air compressor start-up (310), electrical circuit and related device test for air compressor dual-tower dryer start-up (320), electrical circuit and related device test for air compressor dual-tower dryer switching (330), electrical circuit and related device test for air compressor oil temperature protection (340), electrical circuit and related device test for air compressor pressure switch protection (350), electrical circuit and related device test for air compressor heater start-up (360), electrical circuit and related device test for air compressor timer start-up (370), and air compressor Harding plug connector adapter (301); The electrical circuit and related device test (310) for starting the air compressor is connected to the EMU air compressor unit-level debugging device (200) via the air compressor Harding plug connector (301) and connecting cable; the electrical circuit and related device test (320) for starting the air compressor double tower dryer, the electrical circuit and related device test (330) for switching the air compressor double tower dryer, the electrical circuit and related device test (340) for protecting the air compressor oil temperature, the electrical circuit and related device test (350) for protecting the air compressor pressure switch, the electrical circuit and related device test (360) for starting the air compressor heater, and the electrical circuit and related device test (370) for starting the air compressor timer are respectively connected to the EMU air compressor unit-level debugging device (200) via the air compressor Harding plug connector (301) and connecting cable; The debugging method includes the following steps: Step i: The AC220V to DC110V control transformer (20) of the EMU air compressor unit-level debugging device (200) is powered by the ground AC220V power supply (100) through the connecting cable. The AC220V to DC110V control transformer (20) converts the AC220V voltage to DC110V voltage to provide working voltage for the air compressor control circuit panel circuit (40). According to the corresponding logical function requirements of the selected test item, the air compressor control circuit panel circuit (40) realizes the corresponding function and then controls the air compressor start relay of the air compressor main circuit panel circuit (30) to be energized and closed. Step ii: The AC220V power supply (100) on the ground provides working power to the AC220V to AC380V control transformer (10) of the EMU air compressor unit-level debugging device (200) through the connecting cable. The AC220V to AC380V control transformer (10) converts the AC220V voltage to AC380V voltage to provide working voltage for the air compressor main circuit panel circuit (30). The air compressor main circuit panel circuit (30) is connected to the air compressor Harding plug connector (301) of the EMU air compressor unit (300) through the connecting cable, and then to the electrical circuit and related components of the air compressor start-up section to complete the relevant tests of the selected test items.

2. The debugging method for the air compressor unit-level maintenance mode of a high-speed train according to claim 1, characterized in that, The main circuit panel (30) of the air compressor includes, in sequence: a first circuit relay, a first terminal block, a first air switch, a first control button, a first changeover switch, and a first Harding plug adapter connected to the EMU.

3. The debugging method for the air compressor unit-level maintenance mode of a high-speed train according to claim 1, characterized in that, The air compressor control circuit panel (40) includes, in sequence: a second circuit relay, a second terminal block, a second air switch, a second control button, a second changeover switch, and a second Harding plug adapter connected to the EMU.

4. The debugging method for the air compressor unit-level maintenance mode of a high-speed train according to claim 1, characterized in that, The air compressor control circuit panel circuit (40) controls the air compressor main circuit panel circuit (30) via the fifth connecting cable (25).

5. A debugging device for unit-level maintenance of air compressors in high-speed trains, characterized in that, It includes the following components connected in sequence via connecting cables: ground AC220V power supply (100), EMU air compressor unit-level debugging device (200), and EMU air compressor unit (300); The ground AC220V power supply (100) provides power to the EMU air compressor unit-level debugging device (200); The EMU air compressor unit-level debugging device (200) includes: an AC220V to AC380V control transformer (10), an AC220V to DC110V control transformer (20), an air compressor main circuit panel circuit (30), and an air compressor control circuit panel circuit (40); the air compressor main circuit panel circuit (30) and the air compressor control circuit panel circuit (40) are connected by connecting cables; the AC220V to AC380V control transformer (10) is used to provide power to the air compressor main circuit panel circuit (30); the AC220V to DC110V control transformer (20) is used to provide power to the air compressor control circuit panel circuit (40); the air compressor main circuit panel circuit (30) is used to control the air compressor to start; the air compressor control circuit panel circuit (40) is used to control the air compressor main circuit panel circuit (30) and the air compressor control circuit panel circuit (40), thereby controlling the corresponding test functions of the EMU air compressor unit; The EMU air compressor unit (300) includes: electrical circuit and related device test for air compressor start-up (310), electrical circuit and related device test for air compressor dual-tower dryer start-up (320), electrical circuit and related device test for air compressor dual-tower dryer switching (330), electrical circuit and related device test for air compressor oil temperature protection (340), electrical circuit and related device test for air compressor pressure switch protection (350), electrical circuit and related device test for air compressor heater start-up (360), electrical circuit and related device test for air compressor timer start-up (370), and air compressor Harding plug connector adapter (301); The electrical circuit and related device test (310) for starting the air compressor is connected to the EMU air compressor unit-level debugging device (200) via the air compressor Harding plug connector (301) and connecting cable; the electrical circuit and related device test (320) for starting the air compressor double tower dryer, the electrical circuit and related device test (330) for switching the air compressor double tower dryer, the electrical circuit and related device test (340) for protecting the air compressor oil temperature, the electrical circuit and related device test (350) for protecting the air compressor pressure switch, the electrical circuit and related device test (360) for starting the air compressor heater, and the electrical circuit and related device test (370) for starting the air compressor timer are respectively connected to the EMU air compressor unit-level debugging device (200) via the air compressor Harding plug connector (301) and connecting cable.

6. The debugging device for unit-level maintenance of the air compressor of a high-speed train according to claim 5, characterized in that, The main circuit panel (30) of the air compressor includes, in sequence: a first circuit relay, a first terminal block, a first air switch, a first control button, a first changeover switch, and a first Harding plug adapter connected to the EMU.

7. The debugging device for unit-level maintenance of the air compressor in a high-speed train according to claim 5, characterized in that, The air compressor control circuit panel (40) includes, in sequence: a second circuit relay, a second terminal block, a second air switch, a second control button, a second changeover switch, and a second Harding plug adapter connected to the EMU.

8. The debugging device for unit-level maintenance of the air compressor of a high-speed train according to claim 5, characterized in that, The air compressor control circuit panel circuit (40) controls the air compressor main circuit panel circuit (30) via the fifth connecting cable (25).

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