Test box for traction control unit of motor train unit

Abstract

A test box for a traction control unit of a motor train unit comprises a box body (10), a switch signal simulation unit (20) and a plurality of signal sockets (30). One end of the box body (10) is connected with a traction control unit, the other end of the box body (10) is connected with an actuating mechanism, and circuits (13) with the same number as signals of the traction control unit are arranged in the box body (10). The switch signal simulation unit (20) is arranged in the box body, and the switch signal simulation unit (20) is connected with the circuit (13) so as to be used for testing normal connection or short-circuit / open-circuit faults of signals. And the signal socket (30) is arranged on the box body (10) and is connected with a test instrument or a signal generator. The TCU testing device is compact in structure, can realize comprehensive testing of the TCU, and improves testing efficiency and accuracy.

Description

Technical Field

[0001] The utility model relates to a testing device, in particular to a test box for a traction control unit of a multiple unit train. Background Art

[0002] With the rapid development of high-speed railways, multiple unit trains, as an important part of high-speed railways, the performance of their traction control systems is directly related to the safe operation and operation efficiency of multiple unit trains. The traction control unit (TCU) of a multiple unit train is the core component of the traction control system, responsible for monitoring the operating status of the traction converter and ensuring the stable output of the traction force of the multiple unit train. At present, the testing of TCU mainly relies on a laboratory network test bench, which can conduct TCN network testing and testing of some signal boards. However, since some signals of TCU can only be provided by the traction box, the existing testing methods cannot comprehensively cover all signal tests of TCU, which limits the comprehensive evaluation of TCU performance and fault diagnosis.

[0003] In addition, there are also certain limitations in the structural design of existing testing equipment. The test box usually needs to be closely connected to the traction control unit. However, in actual applications, due to space limitations and the complexity of signal transmission, this connection method may lead to low testing efficiency and it is difficult to achieve rapid and accurate fault location. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a test box for a traction control unit of a multiple unit train, which has a compact structure and can achieve comprehensive testing of TCU, improving testing efficiency and accuracy.

[0005] The utility model provides a test box for a traction control unit of a multiple unit train, which includes a box body, a switch signal simulation unit, and several signal sockets. The box body is connected to the traction control unit, and lines with the same number as the signals of the traction control unit are arranged inside the box body. The switch signal simulation unit is arranged in the box body and is connected to the lines to test the normal connection or short / circuit fault of the signals. The signal sockets are arranged on the box body and are connected to testing instruments or signal generators.

[0006] The test box for a traction control unit of a multiple unit train provided by the utility model has a compact structure and can achieve comprehensive testing of TCU, improving testing efficiency and accuracy.

[0007] In still another illustrative embodiment of a test box for a traction control unit of a multiple unit train, the test box for a traction control unit of a multiple unit train further includes a group of cables and several connectors. One end of the cable is connected to the line. The connectors correspond to the number of cables, the connectors are connected to the other end of the cable, and are plugged into the traction control unit.

[0008] In yet another schematic embodiment of a test box for a multiple unit train traction control unit, the box body is square, and the box body includes a box cover and a box body main body. The box cover and the box body main body are detachably connected by bolts. The detachable box body design improves the portability and maintainability of the test box.

[0009] In another schematic embodiment of a test box for a multiple unit train traction control unit, the switch signal simulation unit includes several signal control switches and several signal display elements. The several signal control switches are uniformly arranged in the middle of the box cover and the upper right part of the box cover, and the several signal display elements are uniformly arranged in the lower right part of the box cover.

[0010] In yet another schematic embodiment of a test box for a multiple unit train traction control unit, the signal socket, the signal control switches and the signal display elements are connected by wires. By connecting the signal socket, the signal control switches and the buttons by wires, the internal circuit connection is simplified, and the stability and reliability of signal transmission are improved.

[0011] In another schematic embodiment of a test box for a multiple unit train traction control unit, signal serial numbers are printed on the box cover at the positions of the signal socket, several signal control switches and several signal display elements.

[0012] The test box for the multiple unit train traction control unit provided by the present utility model ensures that all signals can be tested through a wire system with the same number of signals as the traction control unit. And a switch signal simulation unit is introduced, and through the signal control switches and buttons, precise control of signals and fault simulation are realized. The structure is compact, and comprehensive testing of the TCU can be achieved, improving the testing efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following drawings only schematically illustrate and explain the present utility model and do not limit the scope of the present utility model.

[0014] Figure 1 is a schematic structural diagram of a schematic embodiment of a test box for a multiple unit train traction control unit.

[0015] Figure 2 is a schematic structural diagram of a schematic embodiment of the box cover of a test box for a multiple unit train traction control unit.

[0016] LABEL DESCRIPTION

[0017] 10 Box body

[0018] 12 Box cover

[0019] 13 Wire

[0020] 14 Box body main body

[0021] 20 Switch signal simulation unit

[0022] 30 Signal socket

[0023] 40 Cable

[0024] 50 Connector

[0025] 22 Signal control switch

[0026] 24 Signal display component Specific implementation manner

[0027] For a clearer understanding of the technical features, purposes, and effects of the utility model, the specific implementation manner of the utility model is now described with reference to the accompanying drawings. In each figure, the same reference numerals represent components with the same or similar structures but the same functions.

[0028] In this document, "schematic" means "serving as an example, instance, or illustration", and any illustration or implementation manner described as "schematic" in this document should not be construed as a more preferred or more advantageous technical solution.

[0029] Figure 1 is a schematic structural diagram of a schematic implementation manner of a test box for a train unit traction control unit. As Figure 1 shown, the test box includes a box body 10, a switch signal simulation unit 20, and several signal sockets 30. The box body 10 is connected to the traction control unit. Inside the box body 10, there are lines 13 equal in number to the signals of the traction control unit (as Figure 1 shown, only schematically drawn in the figure). The number of lines 13 can be determined according to the number of boards of the traction control unit. The switch signal simulation unit 20 is provided in the box body, and the switch signal simulation unit 20 is connected to the line 13 for testing the normal connection or short / circuit fault of the signal. The signal socket 30 is provided on the box body 10.

[0030] The test box for the train unit traction control unit further includes a set of cables 40 and several connectors 50. One end of the cable 40 is connected to the line 13. The number of connectors 50 corresponds to the number of cables 40. The connector 50 is connected to the other end of the cable 40 and is plugged into the corresponding board on the traction control unit.

[0031] As shown in the figure, the box body 10 is square, and the box body 10 includes a box cover 12 and a box body main body 14. The box cover 12 and the box body main body 14 are detachably connected by bolts. The detachable box body design improves the portability and maintainability of the test box.

[0032] During testing, the connector 50 is plugged into the corresponding board of the traction control unit, and the switch signal simulation unit 20 sends a test signal through the line 13 and the cable 40 to the traction control unit. The test signal here is a test switch signal.

[0033] Figure 2 It is a schematic structural diagram of a lid of a test box for a traction control unit of a multiple unit train. As Figure 2 shown, the lid 12 includes a switch signal simulation unit 20 and a signal socket 30. The switch signal simulation unit 20 includes several signal control switches 22 and several signal display elements 24. The several signal control switches 22 are arranged evenly in the middle of the lid 12 and the upper right part of the lid 12, and the several signal display elements 24 are arranged evenly in the lower right part of the lid 12. The signal control switches 22 and the signal display elements 24 are connected by a line. Connecting the signal socket, signal control switch and button through a line simplifies the internal connection structure and improves the stability and reliability of signal transmission. Those skilled in the art can understand that the signal display element 24 here can be a signal lamp.

[0034] In a schematic embodiment, signal serial numbers are printed on the lid 12 at the signal socket 30, several signal control switches 22 and several signal display elements 24, so that they can correspond one by one during plugging.

[0035] As Figure 1 and Figure 2 shown, during use, different connectors 50 are plugged into different boards of the traction control unit, such as input voltage, frequency board, input / output analog board, and output pulse amplifier board, etc. The signal control switch 22 simulates a switch signal and sends the simulated switch signal to the traction control unit. An external industrial computer is connected to the central control unit, and the signal display element 24 (i.e., the signal lamp) is controlled through the central control unit. The signal lamp lights up and goes out as required, that is, it is determined to meet the requirements. The oscilloscope is connected to the signal socket 30, through the corresponding line 13 and the cable 40 connected thereto, and then plugged into the corresponding board of the traction control unit through the connector 50. By simulating digital signals or voltage signals, it can be shown on the oscilloscope whether the signals on each board are normal.

[0036] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent implementation or change made without departing from the technical spirit of the present invention, such as the combination, division or repetition of features, shall be included in the protection scope of the present invention.

Claims

1. Test box for the traction control unit of the multiple unit train, characterized in that Comprising: A box body (10), the box body (10) is connected to the traction control unit, and a line (13) with the same number of signals as the traction control unit is arranged in the box body (10); A switch signal simulation unit (20), the switch signal simulation unit (20) is arranged in the box body, and the switch signal simulation unit (20) is connected to the line (13) for testing the normal connection or short / circuit fault of the signal; and Several signal sockets (30), the signal sockets (30) are arranged in the box body (10), and the signal sockets (30) are connected to a test instrument or a signal generator.

2. The test box of the EMU traction control unit according to claim 1, characterized in that, The test box for the traction control unit of the multiple unit train further comprises: A group of cables (40), one end of the cables (40) is connected to the line (13); and Several connectors (50), the number of the connectors (50) corresponds to that of the cables (40), the connectors (50) are connected to the other ends of the cables (40) and are plugged into the traction control unit.

3. The test box of the traction control unit of the multiple unit train according to claim 1, characterized in that, The box body (10) is square, and the box body (10) includes a box cover (12) and a box body main body (14), and the box cover (12) is detachably connected to the box body main body (14) by bolts.

4. The test box of the EMU traction control unit according to claim 3, characterized in that The switch signal simulation unit (20) includes several signal control switches (22) and several signal display parts (24), the several signal control switches (22) are uniformly arranged in the middle of the box cover (12) and the upper right part of the box cover (12), and the several signal display parts (24) are uniformly arranged in the lower right part of the box cover (12).

5. The test box of the EMU traction control unit according to claim 4, characterized in that The signal sockets (30), the signal control switches (22) and the signal display parts (24) are connected by lines.

6. The test box of the EMU traction control unit according to claim 4, characterized in that Signal serial numbers are printed on the box cover (12) at the positions of the signal sockets (30), several signal control switches (22) and several signal display parts (24).

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