Large vehicle hybrid starting charging power supply suitable for field transfer

Abstract

The utility model discloses a large -scale vehicle hybrid starting charging power supply suitable for field transfer relates to hybrid starting charging power supply technical field, including engine starting and power supply module, mobile chassis module and transport case, engine starting and power supply module are carried on mobile chassis module, and transport case is used for accomodating whole equipment, engine starting and power supply module include 380V external power source interface, transformer, fan, electric capacity battery, auxiliary ignition power, control panel, starting time output wiring and module shell, the utility model possesses high power density, big current low ripple noise, transient response fast, high resolution, high accuracy and the advantages such as output overvoltage, under voltage, overcurrent, output short circuit, fan trouble, and the protection function of reverse connection is protected. Meanwhile, the power supply is equipped with a set of customized mobile chassis, can adapt to plateau, mountain, muddy road and various terrains, and has driving power, and it is convenient for short distance transfer operation.

Description

Technical Field

[0001] This utility model relates to the field of hybrid start-up charging power supply technology, and in particular to a hybrid start-up charging power supply suitable for large vehicles transported in the field. Background Technology

[0002] In field scenarios such as geological exploration, forest fire fighting, wilderness rescue, and engineering construction in remote areas, large vehicles (such as heavy trucks, engineering vehicles, emergency command vehicles, and field ambulances) are core equipment for personnel transfer, material transport, and operational execution. However, the complexity and uncertainty of the field environment have long posed challenges to the starting and power supply of large vehicles. Traditional starting and charging power supplies, due to issues such as unstable voltage, insufficient output power, poor adaptability, and limited functionality, can no longer meet the actual needs of field transport scenarios. Furthermore, due to the complexity of the field operating environment, current starting and charging power supply equipment is difficult to transport and cannot penetrate complex environments for rescue operations. Therefore, a starting and charging power supply that can cope with harsh starting environments and is easy to transport in complex conditions is needed. Utility Model Content

[0003] Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a hybrid starting and charging power supply suitable for large vehicles in field transportation, solving the technical problems that traditional starting and charging power supplies cannot meet the actual needs of field transportation scenarios due to unstable voltage, insufficient output power, poor adaptability, and limited functionality.

[0004] Technical solution To achieve the above objectives, this utility model provides the following technical solution: A hybrid starting and charging power supply for large vehicles suitable for field transportation includes an engine starting and power supply module, a mobile chassis module, and a transport box. The engine starting and power supply module is mounted on the mobile chassis module, and the transport box is used to store the entire equipment. The mobile chassis module can carry the engine starting and power supply module to complete field transportation operations.

[0005] Preferably, the engine starting and power supply module includes a 380V external power interface, a transformer, a fan, a capacitor battery, an auxiliary ignition power supply, a control panel, output wiring during startup, and a module housing. The 380V external power interface is connected to the input terminal of the transformer, and the output terminal of the transformer is connected to the capacitor battery. The auxiliary ignition power supply is connected in parallel to the output circuit of the capacitor battery. The fan is fixed inside the module housing. The transformer includes an EMI filter, a three-phase PFC converter, an isolated DC-DC converter, and a non-isolated Buck converter. The EMI filter consists of a common-mode filter and a differential-mode filter. The three-phase PFC converter outputs a 400V Bus voltage. The isolated DC-DC converter converts the Bus voltage to a 48V intermediate voltage, and the non-isolated Buck converter converts the 48V voltage to a 0-30V adjustable DC voltage.

[0006] Preferably, the control panel is equipped with a DC negative power terminal, a 12V start positive power terminal, a 24V start positive power terminal, a 12V / 24V voltage display switch, a voltage and current display meter, a voltage adjustment knob switch, a 380V main power switch, and multiple function indicator lights. The voltage adjustment knob switch has seven positions, which can adjust the output voltage range corresponding to the 12V or 24V power supply mode. The mobile chassis module includes a mobile chassis, a mobile chassis remote control, a mobile chassis battery, dual motors, a vehicle body guardrail, a barrier-free ramp, an automatic retraction tension strap, and a positioning anti-slip device. Battery boxes are welded to both sides of the mobile chassis, and the mobile chassis battery is installed inside the battery box. The dual motors provide power for the four-wheel drive.

[0007] Preferably, the mobile chassis remote control has forward and reverse, left and right turn, speed adjustment, and cruise control functions; when the cruise control paddle is turned on, the RF light flashes to indicate it is on, and turning it off again turns it off while keeping the RF light constantly on; the barrier-free ramp is detachably connected to the end of the mobile chassis; the cargo box guardrail has a manual switch structure; the automatic retraction tension straps are distributed along the edge of the mobile chassis; the positioning anti-slip device is set on the upper surface of the mobile chassis at the contact position with the engine start and power supply module; four power module support wheels are installed at the bottom of the module shell; a cable storage groove is opened at the bottom of the shell; the front and rear doors of the transport box can be opened, and the overall length expands to 359cm±5% when opened; its length, width, and height in the closed state are all controlled within the error range of ±5%.

[0008] Compared with the prior art, the present invention has the following beneficial effects: This utility model possesses advantages such as high power density, high current and low ripple noise, fast transient response, high resolution, and high precision, as well as output overvoltage, undervoltage, overcurrent, output short circuit, fan failure, and reverse connection protection functions. Furthermore, this power supply is equipped with a customized mobile chassis, enabling it to adapt to various terrains such as plateaus, mountains, and muddy roads. It also features self-driving power, facilitating short-distance relocation operations. Attached Figure Description

[0009] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0010] Figure 1 This is a structural diagram of the entire utility model; Figure 2 This is a structural diagram of the transport box of this utility model; Figure 3 This is a structural diagram of the mobile chassis module of this utility model; Figure 4 This is a structural diagram of the control panel of this utility model.

[0011] Legend: 1. Engine starting and power supply module; 2. Mobile chassis module; 3. Mobile chassis; 4. Mobile chassis battery; 5. Barrier-free ramp; 6. Cargo box guardrail; 7. Transport box; 8. 380V external power interface; 9. Power module support wheels; 10. Control panel; 11. DC negative power terminal; 12. 12V starting positive power; 13. 24V starting positive power; 14. 12V / 24V voltage display switch; 15. Voltage and current display meter; 16. Voltage adjustment knob switch; 17. 380V main power switch; 18. 380V power indicator light; 19. Overheat alarm indicator light; 20. Auxiliary start switch; 21. Auxiliary start switch indicator light; 22. Cable storage tray. Detailed Implementation

[0012] This application provides a hybrid starting and charging power supply suitable for large vehicles in field transportation, which effectively solves the technical problem that traditional starting and charging power supplies, due to unstable voltage, insufficient output power, poor adaptability, and limited functionality, can no longer meet the actual needs of field transportation scenarios.

[0013] Example like Figure 1-4 As shown, the technical solution in this application embodiment aims to effectively solve the problem that traditional start-up charging power supplies, due to issues such as unstable voltage, insufficient output power, poor adaptability, and limited functionality, can no longer meet the actual needs of field transportation scenarios. The overall approach is as follows: To address the problems existing in the prior art, this utility model provides a hybrid starting and charging power supply for large vehicles suitable for field transportation, including an engine starting and power supply module 1, a mobile chassis module 2, and a transport box 7. The engine starting and power supply module 1 can be mounted on the cargo platform of the mobile chassis module 2 via an unobstructed ramp 5 and is fixed by an automatic retraction tension strap and a positioning anti-slip device. The transport box 7 is used for long-distance storage and transportation of the entire equipment. The three work together to realize the transportation and start-stop charging functions in complex field environments.

[0014] The engine starting and power supply module 1 is the core functional module, which undertakes the starting and charging tasks of large vehicles. It receives electrical energy through the 380V external power interface 8, which is converted by the transformer to charge the capacitor battery. The output parameters are then adjusted through the control panel 10 to meet the power needs of different devices.

[0015] The mobile chassis module 2 serves as the transport carrier, employing a high-strength, lightweight metal frame structure. Equipped with all-terrain tires and a remote-controlled drive system, it can stably transport the engine start-up and power supply module 1 in complex terrains such as mountains and steep slopes, ensuring flexible deployment of the equipment in the field.

[0016] The transport box 7 is a protective storage structure used for storing equipment in non-operational states and for long-distance transportation, to avoid damage from collisions, dust and other factors during field transport. The volume of the transport box 7 is controlled within the range of 170cm±5% (length), 146cm±5% (width), and 107cm±5% (height). The front and rear doors can be opened, and the length of the box after opening is 359cm±5%.

[0017] The engine starting and power supply module 1 includes a 380V external power interface 8, a transformer, a capacitor battery, an auxiliary capacitor battery, a fan, and a control panel 10. The 380V external power interface 8 is electrically connected to the input end of the transformer, the output end of the transformer is connected to the capacitor battery, the auxiliary capacitor battery is connected in series with the capacitor battery, and the series circuit is equipped with a normally closed connection switch. The fan is fixed inside the module housing, and the control panel 10 integrates various control and display elements.

[0018] The transformer includes an EMI filter, a three-phase PFC converter, an isolated DC-DC converter, and a non-isolated Buck converter. The EMI filter consists of a common-mode filter and a differential-mode filter, which can suppress electromagnetic interference. The three-phase PFC converter converts 380V AC power into a stable 400V DC high voltage and performs power factor correction. The isolated DC-DC converter converts the 400V DC high voltage into a 48V intermediate voltage to achieve electrical isolation. The non-isolated Buck converter converts the 48V intermediate voltage into a DC voltage suitable for the electrical equipment, ensuring the stability and safety of the output power.

[0019] The main output battery is a capacitor battery that receives and stores low-voltage DC power converted by a transformer. The auxiliary capacitor battery is used to increase the output power when the ignition current is low. When the connection switch of the series circuit is turned on, the two work together to significantly improve the starting power and meet the instantaneous high-current starting requirements of large vehicles.

[0020] The control panel 10 is equipped with a DC negative power terminal 11, a 12V start positive power terminal 12, a 24V start positive power terminal 13, a 12V / 24V voltage display switch 14, a voltage and current display meter 15, a voltage adjustment knob switch 16, a 380V main power switch 17, a 380V power indicator light 18, an overheat alarm indicator light 19, an auxiliary start switch 20, and an auxiliary start switch indicator light 21. The voltage adjustment knob switch 16 has seven positions, which can adjust the output voltage to fluctuate within the range of 9.5 to 32V. The 12V / 24V voltage display switch 14 can be matched with electrical equipment with different voltage requirements. The voltage and current display meter 15 provides real-time feedback of operating parameters.

[0021] The 380V main power switch 17 controls the on / off state of the external power supply. When closed, the 380V power indicator light 18 illuminates, indicating that the equipment is in a charging-ready state. If the equipment overheats, the overheat alarm indicator light 19 will automatically illuminate, and charging must be stopped immediately. The auxiliary start switch 20 is linked to the auxiliary capacitor battery. When activated, the auxiliary start switch indicator light 21 illuminates, and the equipment output current power increases, ensuring a good start-up effect in low ignition current scenarios.

[0022] The mobile chassis module 2 includes a mobile chassis 3, a mobile chassis remote control, a mobile chassis battery 4, a motor, a cargo box guardrail 6, an automatic retraction tension strap, an accessible ramp 5, and a positioning anti-slip device. The mobile chassis 3 adopts a high-strength metal frame structure, with two battery frames welded on both sides. The mobile chassis battery 4 is installed inside the battery frame, and the motor is driven by the mobile chassis battery 4, which in turn drives the all-terrain tires to rotate.

[0023] The braking system adopts a mechanical braking method, which has both main braking force and parking brake functions, reducing system energy consumption while ensuring transportation safety; the all-terrain tires can adjust the tire pressure in real time according to the terrain, and the wheel rims adopt a high-strength anti-bead design to ensure passability in complex road conditions such as steep slopes and mountains.

[0024] The remote control system uses a professional-grade ground station dual-joystick remote controller, which can realize forward, reverse, steering, speed adjustment and cruise control functions, making it easy for operators to remotely control the mobile chassis 3 to accurately reach the designated position. The cargo platform is a sturdy metal flatbed cargo box with a surface treated for anti-slip and shock absorption, providing a stable mounting base for the engine starting and power supply module 1.

[0025] The cargo compartment guardrail 6 is welded to the front and rear of the mobile chassis 3 and has two openable structures. When opened, it works with the barrier-free ramp 5 to enable the loading and unloading of the engine start and power supply module 1. Automatic retraction tension straps and positioning anti-slip devices are symmetrically distributed on the surface of the cargo platform to fix the loaded engine start and power supply module 1 and prevent displacement or damage due to bumps during transportation.

[0026] The volume of the module shell is controlled within the range of 57cm±5% (length), 45cm±5% (width), and 67cm±5% (height), and the total weight of the module is controlled below 60kg. A cable storage groove (22) is provided at the bottom of the shell.

[0027] The bottom of the module housing is equipped with four power module support wheels 9, which can be manually dragged over short distances; the transport box 7 adopts an openable front and rear door design, and the internal space is adapted to the size of the overall equipment, which is used for protection and storage during long-distance transportation of the equipment, so as to avoid damage to the equipment caused by the external environment.

[0028] Example 1: Start-up test of a large diesel engine vehicle Using a 12-cylinder diesel engine vehicle as the test target, this vehicle has a starter motor with a power of 11kW, a voltage of 24V, a battery capacity of 280Ah, and an instantaneous starting current of up to 600A. The operating steps are as follows: The mobile chassis 3 is controlled by the mobile chassis remote control to transport the engine start and power supply module 1 to the side of the vehicle, the cargo box guardrail 6 is opened, and the module is dragged to the ground using the barrier-free ramp 5. Connect the DC negative power terminal 11 of the module to the negative terminal of the vehicle battery using the output DC cable, and then connect the 24V starting positive power supply 13 to the positive terminal of the vehicle battery, ensuring that the positive and negative terminals do not have direct contact. Adjust the 12V / 24V voltage display switch 14 to the 24V position, and use the voltage adjustment knob switch 16 to adjust the output voltage to the appropriate range (19~30V). Observe the voltage and current display table 15 to confirm that the parameters are stable. Because the vehicle requires a high instantaneous starting current, the auxiliary start switch 20 is turned on, and the auxiliary start switch indicator light 21 illuminates, increasing the output current; When the vehicle was started, the utility model successfully drove the vehicle starter motor to operate. Multiple repeated tests showed that the vehicle started successfully without any voltage instability or starting failure.

[0029] Example 2: Battery charging and field transport test Two batteries with a rated voltage of 12V and a rated capacity of 140Ah were selected for parallel charging tests to verify the field transportation performance of the mobile chassis 3. Connect the 380V external power supply to the module's 380V external power interface 8, turn on the 380V main power switch 17 on the control panel 10, the 380V power indicator light 18 will light up, and the module will start charging the capacitor battery. Connect the two parallel batteries to the module terminals using the output DC cable, adjust the voltage parameter to the 12V level (9.5~19V), start the charging program, and the voltage and current display table 15 will display the charging status in real time. In actual testing, the module can fully charge this model of depleted battery nine times without any overheating alarm during the charging process, and the charging efficiency is stable. During the transport test, the fully charged module was fixed on the mobile chassis 3, and the automatic retraction and tensioning straps and positioning anti-slip devices were activated. The mobile chassis 3 was controlled to cross steep mountain slopes under full load. Its moving speed can reach 12KM / h, and the continuous operation time exceeds 8 hours. No module displacement or chassis failure occurred throughout the process, meeting the transport needs of complex field environments.

[0030] Example 3: Battery charging cycle test Two batteries with a rated voltage of 12V and a rated capacity of 140Ah were selected for parallel charging cycle testing: According to the charging process of Example 2, the depleted battery is connected to the engine start and power supply module 1, and the charging parameters are set before charging is started. When the voltage and current display 15 shows that the battery is fully charged, disconnect the connection, discharge to a depleted state, and then recharge. Repeat this cycle. In actual testing, this utility model can complete nine complete "low-power-full" cycles continuously. The charging time is stable each time, the module temperature is normal during the charging process, and the overheat alarm indicator 19 is not triggered, proving that its charging performance is stable and reliable and can meet the actual needs of multiple repeated charging.

[0031] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications 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 protection scope of this invention.

Claims

1. A hybrid starting and charging power supply for large vehicles suitable for field transportation, comprising an engine starting and power supply module (1), a mobile chassis module (2), and a transport box (7), characterized in that: The engine starting and power supply module (1) is mounted on the mobile chassis module (2), and the transport box (7) is used to store the entire equipment. The mobile chassis module (2) can carry the engine starting and power supply module (1) to complete field transfer operations. The engine start and power supply module (1) includes a 380V external power interface (8), a transformer, a fan, a capacitor battery, an auxiliary ignition power supply, a control panel (10), output wiring during startup, and a module housing. Among them, the 380V external power interface (8) is connected to the input end of the transformer, the output end of the transformer is connected to the capacitor battery, the auxiliary ignition power supply is connected in parallel to the output circuit of the capacitor battery, and the fan is fixed inside the module housing. The mobile chassis module (2) includes a mobile chassis (3), a mobile chassis remote control, a mobile chassis battery (4), dual motors, a carriage guardrail (6), an accessible ramp (5), an automatic retraction tension strap and a positioning anti-slip device; Among them, the mobile chassis (3) has battery boxes welded on both sides, the mobile chassis battery (4) is installed inside the battery box, and the dual motors provide power for the four-wheel drive.

2. The hybrid starting and charging power supply for large vehicles suitable for field transportation according to claim 1, characterized in that: The transformer includes an EMI filter, a three-phase PFC converter, an isolated DC-DC converter, and a non-isolated Buck converter; the EMI filter consists of a common-mode filter and a differential-mode filter. Among them, the three-phase PFC converter outputs a 400VBus voltage, the isolated DC-DC converter converts the Bus voltage to a 48V intermediate voltage, and the non-isolated Buck converter converts the 48V voltage to a 0-30V adjustable DC voltage.

3. A hybrid starting and charging power supply for large vehicles suitable for field transportation according to claim 2, characterized in that: The control panel (10) is equipped with a DC negative power supply terminal (11), a 12V start positive power supply (12), a 24V start positive power supply (13), a 12V / 24V voltage display switch (14), a voltage and current display meter (15), a voltage adjustment knob switch (16), a 380V main power switch (17), and multiple function indicator lights. The voltage adjustment knob switch (16) has seven levels, which can be used to adjust the output voltage range under 12V or 24V power supply modes.

4. A hybrid starting and charging power supply for large vehicles suitable for field transportation according to claim 3, characterized in that: The mobile chassis remote control has forward and backward movement, left and right turn, speed adjustment and cruise control functions; The RF light flashes to indicate that cruise control is on when the paddle is turned on, and turns off when the paddle is turned on again, keeping the RF light constantly on.

5. A hybrid starting and charging power supply for large vehicles suitable for field transportation according to claim 4, characterized in that: The barrier-free ramp (5) is detachably connected to the end of the mobile chassis (3), and the carriage guardrail (6) adopts a manual switch structure; the automatic retraction tension strap is distributed along the edge of the mobile chassis (3), and the positioning anti-slip device is set on the upper surface of the mobile chassis (3) at the contact position with the engine start and power supply module (1).

6. A hybrid starting and charging power supply for large vehicles suitable for field transportation according to claim 5, characterized in that: The bottom of the module housing is equipped with four power module support wheels (9), and a cable storage groove (22) is provided at the bottom of the housing. Among them, the front and rear doors of the transport box (7) can be opened, and the overall length is extended to 359cm±5% after opening. Its length, width and height in the closed state are all controlled within the error range of ±5%.

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