Charging and discharging equipment of emergency pantograph lifting device of motor train unit

Abstract

The utility model discloses charging and discharging equipment of an emergency pantograph lifting device of a motor train unit, which comprises a box body, an input and output module is arranged on the rear end face of the box body, and the input and output module comprises a mains supply interface, a charging interface and a discharging interface; a control circuit board, a charging module, a discharging load and a power supply module are arranged in the box body; an input end of the control circuit board is connected with a discharging interface of the input / output module; the input end of the charging module is connected with the mains supply interface of the input / output module; the discharge load is electrically connected with the output end of the control circuit board; the input end of the power module is connected with a mains supply interface of the input-output module; a control panel is arranged on the front end face of the box body, a power meter is arranged on the control panel, the power interface is electrically connected with the output end of the power module, and the test interface is electrically connected with the discharge load; a heat dissipation module is arranged on the side face of the box body and electrically connected with the output end of the power module.

Description

Technical Field

[0001] The utility model relates to the technical field of charging and discharging of emergency pantograph hoisting devices, in particular to a charging and discharging device for an emergency pantograph hoisting device of a motor vehicle group. Background Art

[0002] my country's high-speed railway CRH2 series EMUs are equipped with battery packs, which are responsible for starting the EMU and supplying emergency equipment and facilities in the car, auxiliary air compressors, raising the pantograph, closing the main circuit breaker, and enabling the EMU to have traction functions before the EMU supplies high voltage. After the EMU supplies high voltage, the battery is charged through the APU (auxiliary power supply unit) to keep the battery voltage at around DC100V. If the EMU cannot raise the pantograph to supply power or there is no power in the maintenance depot, causing the battery voltage to be below DC77V, the battery undervoltage protection function will disconnect the battery circuit breaker, and the EMU will be completely unable to start. The solution is to replace the battery with normal voltage or connect the AC400V power supply in the depot, but these two operations are difficult, have many restrictions, and take a long time, so all types of EMUs are equipped with portable emergency pantograph devices, which effectively solve the problem of battery power loss in EMUs.

[0003] The emergency pantograph device is required to be charged every two months during routine maintenance, but the probability of using the device during daily use is very low, so the emergency pantograph device of the EMU is generally only charged and rarely discharged. During long-term storage, if the device is not discharged, the battery will always be charged, which will cause the internal pressure of the battery to increase, the battery to deform, and the battery to leak, resulting in a significant reduction in battery performance and damage. At present, there are more than 30 emergency pantograph devices damaged in Kunming EMUs, accounting for 1 / 4 of the total number of equipped. Disassembly and inspection found that most of the reasons were internal battery bulging. If the battery is depleted during the operation of the EMU or during daily maintenance, the pantograph cannot be raised, and the emergency power supply function of the equipped emergency pantograph device cannot be realized normally, it will seriously affect the operation order of the EMU and cause serious traffic accidents.

[0004] In the existing charging and discharging technology, for example, the utility model patent with application number 202223468255.X discloses a battery discharge device. Although this patent can be used for battery discharge, there are still the following problems: 1. The device can only be used for discharge, not charging, and has a single functionality. If working outdoors, it is necessary to carry charging and discharging equipment separately; 2. Although the device can discharge multiple batteries at the same time, it is not suitable for emergency pantograph lifting devices that need to control the discharge voltage. If the discharge is too much, it is difficult for the emergency pantograph lifting device to operate the pantograph to raise. Summary of the invention

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a charging and discharging device for an emergency pantograph raising device of an EMU.

[0006] The utility model is realized by the following technical solutions:

[0007] A charging and discharging device for an emergency pantograph raising device of a train set comprises a box body (1) and further comprises:

[0008] An input / output module (2) is arranged on the rear end surface of the box body (1), and comprises a mains interface (21), a charging interface (22) and a discharging interface (23), and is used to connect the emergency bow raising device (9) and the mains socket;

[0009] A control circuit board (3) is arranged in the box (1), and an input end thereof is connected to a discharge interface (23) of the input-output module (2);

[0010] A charging module (4) is arranged in the housing (1), the input end of which is connected to the mains interface (21) of the input-output module (2), and the output end of which is connected to the charging interface (22);

[0011] A discharge load (5) is disposed in the box (1) and is electrically connected to the output end of the control circuit board (3);

[0012] A power module (6) is arranged in the box (1), and an input end thereof is connected to a mains power interface (21) of the input / output module (2);

[0013] A control panel (7) is arranged on the front face of the housing (1) and is used for inputting and displaying input signals of the control circuit board (3). A power meter (71) is arranged on the control panel (7). The power interface of the power meter (71) is electrically connected to the output end of the power module (6), and the test interface is electrically connected to the discharge load (5).

[0014] The heat dissipation module (8) is arranged on the side of the box body (1), is electrically connected to the output end of the power module (6), and is used to dissipate heat for components in the box body (1).

[0015] A further solution is that the control panel (7) comprises: a display (72), a human-machine interaction module (73), a charging switch (74) and a discharging switch (75); the display (72) and the human-machine interaction module (73) are electrically connected to the control circuit board (3); the charging switch (74) is arranged on the starting circuit of the charging module (4); and the discharging switch (75) is arranged on the connecting wire between the discharging interface (23) and the control circuit board (3);

[0016] A charging indicator light (76) is arranged above the charging switch (74), and a discharging indicator light (77) is arranged above the discharging switch (75). The charging indicator light (76) is electrically connected to the charging module (4), and the discharging indicator light (77) is electrically connected to the control circuit board (3).

[0017] A further solution is that the discharge load (5) includes three discharge resistors (51) connected in series.

[0018] A further solution is that the voltage test interface of the power meter (71) is connected to the positive electrode of the output end of the control circuit board (3), and the current test interface is connected to the negative electrode of the discharge resistor (51) connected to the positive electrode of the output end of the control circuit board (3).

[0019] A further solution is that the human-computer interaction module (73) is provided with a setting button (731), an upward adjustment button (732) and a downward adjustment button (733).

[0020] A further solution is that a mounting frame (11) is arranged at a central position in the box body (1), and the control circuit board (3), the charging module (4), and the power supply module (6) are arranged above the mounting frame (11).

[0021] A further solution is that the heat dissipation module (8) is a fan (81), air inlets (82) and heat dissipation ports (83) are respectively provided on both sides of the box body (1), and the fan (81) is arranged on the inner side of the heat dissipation port (83).

[0022] A further solution is that the charging module (4) and the power module (6) are connected in parallel to the wire of the mains interface (21) and a fuse (211) is provided, and the fuse (211) is fixed on the rear end face of the box (1).

[0023] A further solution is that the output voltage of the output end of the charging module (4) is 120V; and the power supply module (6) is a 24V power supply.

[0024] A further solution is that a handle (12) is provided on the top of the box body (1).

[0025] The working principle of this utility model:

[0026] The utility model integrates charging and discharging components of an emergency bow-raising device (9) into a box (1), wherein display components and operating components are integrated into a control panel (7) on the front end of the box (1), a charging and discharging connection interface and a fuse (211) are integrated into a rear end panel of the box (1), and a circuit board and other components are integrated into the box (1);

[0027] Before the emergency bow raising device (9) discharges, the staff operates the human-machine interaction module (73) connected to the control circuit board (3) to input the function instruction of the control circuit board (3), so as to realize the automatic control of the control circuit board (3) on the discharge of the emergency bow raising device (9); the staff changes the function instruction by pressing the setting button (731) on the human-machine interaction module (73), and adjusts the numerical value of the function instruction by pressing the up-adjustment button (732) and the down-adjustment button (733); six function instruction parameters can be set through the human-machine interaction module (73): P0: setting voltage protection value, P1: how many volts the voltage will rise after power failure to restart, P2: low voltage alarm value, P3: restart interval time after power failure, P4: setting power-on forced start time, P5: automatic screen off energy saving time;

[0028] When the emergency bow raising device (9) is discharged, the current is transmitted to the input end of the control circuit board (3) through the connecting line and the discharge interface (23), and then transmitted to the discharge load (5) through the output end of the control circuit board (3), and the three discharge resistors (51) of the discharge load (5) consume the electric energy of the emergency bow raising device (9); during the discharge process of the emergency bow raising device (9), a display (72) connected to the control circuit board (3) displays the real-time voltage of the emergency bow raising device (9); a power meter (71) whose voltage port is connected to the positive pole of the output end of the control circuit board (3) and whose current port is connected to the discharge resistor (51) displays the discharge voltage, discharge current and discharge power values;

[0029] When the emergency bow raising device (9) is charged, the mains power is transmitted to the charging module (4) via the power line and the mains power interface (21), the charging module (4) converts the 220V mains power into a 120V voltage, and the 120V voltage is transmitted to the emergency bow raising device (9) via the charging interface (22) and the connecting line, so as to charge the battery of the emergency bow raising device (9).

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] The utility model can effectively solve the daily maintenance of the emergency pantograph raising device (9) stored for a long time, realize the charging and discharging functions, extend the service life of the storage battery of the emergency pantograph raising device (9), and at the same time save the maintenance and replacement cost of the EMU emergency pantograph raising device (9).

[0032] The utility model integrates charging and discharging control and protection into a box (1), which makes it convenient for staff to centrally manage the charging and discharging work of the emergency bow hoisting device (9) and reduces the use of equipment.

[0033] The charging module (4) of the utility model has a charging protection function to prevent the emergency bow hoisting device from being overcharged; the six functional instruction settings of the control circuit board (3) and the human-machine interaction module (73) have a discharge protection function, and the control circuit board (3) automatically controls the discharge process through the set parameters to prevent the emergency bow hoisting device from being overcharged, over-discharged, etc.

[0034] The human-machine interaction module (73) of the utility model can set different parameters according to needs, is suitable for the discharge work of batteries of different equipment, and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0036] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0037] Figure 3 It is a front view of the utility model;

[0038] Figure 4 It is a rear view of the utility model;

[0039] Figure 5 It is the principle diagram of the utility model;

[0040] Figure 6 This is a usage state diagram of the utility model.

[0041] Numbers in the figure:

[0042] 1-box, 11-mounting frame, 12-handle;

[0043] 2-input and output module, 21-mains power interface, 211-fuse, 22-charging interface, 23-discharging interface;

[0044] 3-Control circuit board;

[0045] 4- Charging module;

[0046] 5-discharge load, 51-discharge resistor;

[0047] 6- Power module;

[0048] 7-control panel, 71-power meter, 72-display, 73-human-computer interaction module, 731-setting button, 732-upward button, 733-downward button, 74-charging switch, 75-discharging switch, 76-charging indicator light, 77-discharging indicator light;

[0049] 8- heat dissipation module, 81- fan, 82- air inlet, 83- heat dissipation port;

[0050] 9- Emergency bow raising device. DETAILED DESCRIPTION

[0051] In order to enable those skilled in the art to better understand the technical solution of the utility model, its specific implementation method is described in detail below with reference to the accompanying drawings.

[0052] like Figure 1-6 As shown, a charging and discharging device for an emergency pantograph raising device of a train unit comprises a box body 1, an input-output module 2 is arranged on the rear end surface of the box body 1, and the input-output module 2 comprises a mains interface 21, a charging interface 22 and a discharging interface 23; a control circuit board 3, a charging module 4, a discharging load 5 and a power module 6 are arranged in the box body 1, the input end of the control circuit board 3 is connected to the discharging interface 23 of the input-output module 2; the input end of the charging module 4 is connected to the mains interface 21 of the input-output module 2, and the output end is connected to the charging interface 22; the discharging load 5 is electrically connected to the output end of the control circuit board 3, and the input end of the power module 6 is connected to the mains interface 21 of the input-output module 2; a control panel 7 is arranged on the front end surface of the box body 1, a power meter 71 is arranged on the control panel 7, the power interface is electrically connected to the output end of the power module 6, and the test interface is electrically connected to the discharging load 5; a heat dissipation module 8 is arranged on the side of the box body 1, and the heat dissipation module 8 is electrically connected to the output end of the power module 6.

[0053] In some embodiments, Figure 1 , 2 As shown in Figures 3 and 5, the control panel 7 includes a display 72, a human-computer interaction module 73, a charging switch 74 and a discharging switch 75. The display 72 and the human-computer interaction module 73 are electrically connected to the control circuit board 3; the charging switch 74 is arranged on the starting circuit of the charging module 4; the discharging switch 75 is arranged on the connecting wire between the discharging interface 23 and the control circuit board 3.

[0054] In some embodiments, the power meter 71 and the display 72 are both digital tube display screens. The power meter 71 is used to display the discharge voltage, discharge current and discharge power values ​​of the emergency bow lifting device 9; the display 72 is used to display the current voltage size and function code of the emergency bow lifting device 9.

[0055] In some embodiments, Figure 1-3 As shown, the charging switch 74 is provided with two charging indicator lights 76, which are respectively used to indicate the power-on state and the charging state; a discharge indicator light 77 is provided above the discharge switch 75 to indicate the discharge state; the charging indicator light 76 is electrically connected to the charging module 4, and the discharge indicator light 77 is electrically connected to the control circuit board 3.

[0056] In some embodiments, Figure 5 As shown, the discharge load 5 includes three discharge resistors 51 connected in series.

[0057] In some embodiments, Figure 5 As shown, the voltage test interface of the power meter 71 is connected to the positive electrode of the output end of the control circuit board 3 , and the current test interface is connected to the negative electrode of the discharge resistor 51 connected to the positive electrode of the output end of the control circuit board 3 .

[0058] In some embodiments, Figure 3 As shown, the human-computer interaction module 73 is provided with a setting button 731, an up-adjustment button 732 and a down-adjustment button 733; the setting button 731 is used to change the settings of different functional instructions of the human-computer interaction module 73, and the up-adjustment button 732 and the down-adjustment button 733 are used to adjust the numerical value of the specified functional instruction.

[0059] In some embodiments, the human-computer interaction module 73 can set 6 parameters:

[0060] P0: Set voltage protection value; default is 11V, range is 8-120V;

[0061] P1: How many volts will the voltage rise after power failure to restart; the default is 1V, the range is 0.1-10V;

[0062] P2: Low voltage alarm value; default 10V, range 7-110V; any key can be turned off when alarm occurs;

[0063] P3: Restart interval after power failure; default is 2 minutes, range is 0-10 minutes;

[0064] P4: Set the forced start time after power on; the default is 3 seconds, the range is 0-5 seconds;

[0065] P5: Automatic screen off time for energy saving; the default is AA constant light, the range is 15-30 seconds;

[0066] The forced start time is set because when the load starts, the current is too large, which will instantly lower the voltage value. If the voltage protection value is higher than the load startup voltage value, the load will not start.

[0067] In some embodiments, Figure 2 As shown, a mounting frame 11 is arranged in the middle of the box body 1 , and the control circuit board 3 , the charging module 4 , and the power module 6 are arranged above the mounting frame 11 .

[0068] In some embodiments, Figure 2 As shown, the heat dissipation module 8 is a fan 81 , and air inlets 82 and heat dissipation ports 83 are respectively provided on both sides of the box body 1 , and the fan 81 is provided on one side of the mounting frame 11 close to the heat dissipation ports 83 .

[0069] In some embodiments, Figure 5As shown, the charging module 4 and the power module 6 are connected in parallel to the wire of the AC power interface 21, and a fuse 211 is provided to protect the circuit when the device is charging, to prevent the instantaneous current from being too large during charging, and the circuit from being damaged due to overload, thereby protecting the electronic equipment; the fuse 211 is fixed on the rear end face of the box 1, so that the staff can replace the damaged fuse 211 conveniently.

[0070] In some embodiments, the control circuit board 3 is a PLC control circuit.

[0071] In some embodiments, the output voltage of the output end of the charging module 4 is 120V, the charging voltage is 120V, and the charging current is 3A; the power supply module 6 is a 24V power supply.

[0072] In some embodiments, Figure 1-4 As shown, a handle 12 is provided on the top of the box body 1 to facilitate the staff to carry the device.

[0073] Working mode of the utility model:

[0074] When the emergency bow hoisting device 9 is discharging, the battery is fully charged at about 115V. An alarm will be sounded when the battery voltage drops to 108V, and the discharge will stop when it drops to 107V. The digital tube will turn off the screen after running in energy-saving mode for 15 seconds.

[0075] Step 1: The staff connects the emergency bow raising device 9 to the discharge interface 23 of the device through a connecting line, and then sets the parameters of the human-computer interaction module 73. After the parameter setting is completed, the discharge switch 75 is turned on;

[0076] The parameter settings are as follows: voltage protection value P0=107V, the value of how much voltage will increase before restarting after power failure P1=1V, low voltage alarm value P2=108V, restart interval after power failure P3=2 minutes, power-on forced start time P4=3 seconds, automatic screen off energy saving time P5=15 seconds.

[0077] Step 2: After a 5-second power-on delay, execute the P4 instruction to force discharge for 3 seconds to ensure that a large current is required to start the discharge and a small current can be used for normal operation. The emergency bow-lifting device 9 continues to discharge; and execute the P5 instruction. After 15 seconds, the display light turns off and the screen enters the energy-saving mode.

[0078] Step 3. As time goes by, the battery voltage of the emergency bow hoisting device 9 begins to drop. When the battery voltage is ≤108V, it reaches the low voltage alarm value set by P2, exits the energy-saving mode, the display 72 flashes, and the buzzer on the control circuit board 3 starts to sound. At this time, pressing any button on the human-computer interaction module 73 can turn off the alarm, and the battery continues to discharge.

[0079] Step 4, when the battery voltage of the emergency bow lifting device 9 is ≤107V, continue to discharge for 3 seconds and then stop discharging; after stopping discharging, the voltage will rise again. If the battery voltage is <107V at this time, the discharge process is over; if the battery voltage is ≥107V at this time, execute the P3 instruction, delay for 2 minutes, and then discharge again, repeating the cycle until the discharge process is over.

[0080] When the emergency bow raising device is charging, the staff connects the emergency bow raising device 9 and the charging interface 22 of the device through a connecting line, and uses a power cord to connect the AC power interface 21 of the device to the AC power socket. At this time, the charging indicator light 76 on the left side above the charging switch 74 lights up, indicating that the power is on; then turn on the charging switch 74, and the charging indicator light 76 on the right side above the charging switch 74 lights up red, indicating that charging is in progress and the emergency bow raising device 9 is charging; when the charging indicator light 76 on the right side above the charging switch 74 lights up green, it indicates that charging is complete and the battery of the emergency bow raising device 9 is fully charged.

[0081] It should be noted that the above detailed introduction of the technical solution of the utility model and the description of the principle of the utility model are provided, and the above description of the working principle is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

[0082] The technical personnel in the technical field of the utility model can make modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, which shall fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A charging and discharging device for an emergency pantograph raising device of a train unit, comprising a box (1), characterized in that: Also includes: An input / output module (2) is arranged on the rear end surface of the box body (1), and comprises a mains interface (21), a charging interface (22) and a discharging interface (23), and is used to connect the emergency bow raising device (9) and the mains socket; A control circuit board (3) is arranged in the box (1), and an input end thereof is connected to a discharge interface (23) of the input-output module (2); A charging module (4) is arranged in the housing (1), the input end of which is connected to the mains interface (21) of the input-output module (2), and the output end of which is connected to the charging interface (22); A discharge load (5) is disposed in the box (1) and is electrically connected to the output end of the control circuit board (3); A power module (6) is arranged in the box (1), and an input end thereof is connected to a mains power interface (21) of the input / output module (2); A control panel (7) is arranged on the front face of the housing (1) and is used for inputting and displaying input signals of the control circuit board (3); a power meter (71) is arranged on the control panel (7); a power interface is electrically connected to an output end of the power module (6); and a test interface is electrically connected to a discharge load (5); A heat dissipation module (8) is arranged on a side of the box (1), is electrically connected to an output end of the power module (6), and is used to dissipate heat for components in the box (1); The control panel (7) comprises: a display (72), a human-machine interaction module (73), a charging switch (74) and a discharging switch (75); the display (72) and the human-machine interaction module (73) are electrically connected to the control circuit board (3); the charging switch (74) is arranged on the starting circuit of the charging module (4); and the discharging switch (75) is arranged on the connecting wire between the discharging interface (23) and the control circuit board (3); A charging indicator light (76) is disposed above the charging switch (74), and a discharging indicator light (77) is disposed above the discharging switch (75); the charging indicator light (76) is electrically connected to the charging module (4), and the discharging indicator light (77) is electrically connected to the control circuit board (3); The discharge load (5) comprises three discharge resistors (51) connected in series; The voltage test interface of the power meter (71) is connected to the positive electrode of the output end of the control circuit board (3), and the current test interface is connected to the negative electrode of the discharge resistor (51) connected to the positive electrode of the output end of the control circuit board (3); The human-computer interaction module (73) is provided with a setting button (731), an upward adjustment button (732) and a downward adjustment button (733); A mounting frame (11) is arranged in the middle of the box body (1), and the control circuit board (3), the charging module (4), and the power supply module (6) are arranged above the mounting frame (11); The heat dissipation module (8) is a fan (81), and air inlets (82) and heat dissipation ports (83) are respectively arranged on both sides of the box body (1), and the fan (81) is arranged inside the heat dissipation port (83); The charging module (4) and the power module (6) are connected in parallel to the wire of the mains interface (21), and a fuse (211) is provided. The fuse (211) is fixed on the rear end surface of the box (1).

2. The charging and discharging device of the EMU emergency pantograph raising device according to claim 1 is characterized in that: The output voltage of the output end of the charging module (4) is 120V; The power supply module (6) is a 24V power supply.

3. The charging and discharging device of the emergency pantograph raising device of the EMU according to claim 1 is characterized in that: The top of the box body (1) is provided with a handle (12).

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