Power distribution method and system for vehicle-mounted multifunctional power unit

Abstract

A power distribution method for a vehicle-mounted multifunctional power unit comprises the steps that S1, the access state of vehicle power and commercial power is detected; s2, if the vehicle power and the commercial power are connected at the same time, switching to a commercial power charging mode; if the vehicle power is connected and the commercial power is not connected, switching to a vehicle power charging mode; if the vehicle power is not accessed and the commercial power is accessed, switching to a vehicle power charging mode; all-visual operation is achieved, the whole system can be powered on and started through one key, various power parameters are displayed clearly, use is convenient and safe, input and output interfaces of a power unit are integrated into one modular cluster connector, only one interface needs to be plugged in and out when the modular cluster connector is mounted and dismounted on a vehicle, and convenience and rapidness are achieved. A vehicle chassis battery can be connected, an ACC detection function is achieved, when a vehicle is started, a built-in battery of the power unit can be charged, and when the vehicle flames out, charging of the built-in battery of the power unit is automatically cut off, so that the purpose of protecting the vehicle chassis battery is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution, and more specifically to a method and system for distributing power of a vehicle-mounted multifunctional power unit. Background Art

[0002] At present, there is an increasing demand for multifunctional products. Hydrological testing needs to be carried out outdoors. The power distribution of the currently known on-board power unit is relatively simple. There are two main power supply methods on the market. One is to use the vehicle chassis battery to power the in-vehicle equipment, but this method has certain requirements for the vehicle chassis battery. Long-term use will cause battery feeding, which will accelerate the reduction of the service life of the vehicle chassis battery. The other is to install power generators and other equipment to ensure the power demand during driving, but this method takes a long time to transform, the cost is relatively high, the disassembly is complicated, and it is not easy to repair. In terrains such as mountain roads where vehicles cannot pass, it is impossible to power the equipment. Carrying electrical equipment such as waiters in the car takes up the limited space in the vehicle, which brings many changes when using electricity in complex road conditions.

[0003] In order to solve the problem in the prior art that it is impossible to achieve both no battery feedback on the original vehicle chassis and ensuring the vehicle's power supply during driving and being able to be used outdoors, the present invention provides a vehicle-mounted intelligent power unit that integrates vehicle-mounted inverter, AC / DC conversion, power safety protection, multi-channel input switching, lithium battery energy storage, and visual operation, and can be used both on-board and outdoors. Summary of the invention

[0004] The present invention provides a vehicle-mounted multifunctional power unit power distribution method.

[0005] S1: Check the vehicle power and mains power access status;

[0006] S2: If the vehicle power and the mains power are connected at the same time, switch to the mains power charging mode; if the vehicle power is connected but the mains power is not connected, switch to the vehicle power charging mode; if the vehicle power is not connected but the mains power is connected, switch to the mains power charging mode;

[0007] Among them, the charging method of vehicle charging mode is:

[0008] S11: Setting the vehicle chassis battery voltage threshold to threshold N;

[0009] S12: Start the vehicle and detect the vehicle chassis battery voltage in real time. When the voltage reaches a threshold value N, the vehicle chassis battery charges the on-board multifunctional power unit;

[0010] S13: The vehicle stops and the chassis battery voltage is detected. When the voltage is lower than a threshold value N, the chassis battery stops charging the on-board multifunctional power unit.

[0011] Among them, the charging method of the mains charging mode is:

[0012] S21: The mains is connected and supplies power directly to the multifunctional power unit, and at the same time, the mains is connected and charges the multifunctional power unit;

[0013] S22: Real-time detection of the mains power access status. If the mains power access status is maintained, then step S01 is maintained;

[0014] S23: Real-time detection of the mains power access status. If the mains power access status is abnormal, charging is stopped and power is switched to the built-in battery of the multifunctional power unit.

[0015] Another aspect of the present invention also provides a vehicle-mounted multifunctional power unit power distribution system, comprising:

[0016] An energy storage module, including a lithium battery pack, which is used to store electrical energy;

[0017] It also includes an input switching circuit, which is used to connect to a 12V DC vehicle power supply or a 220 AC mains power supply;

[0018] It also includes a charging circuit, which is used to convert the 12V DC vehicle power or 220 AC mains power into 12V DC power and connect it to the lithium battery pack to charge it;

[0019] A power distribution module, including an inverter circuit, which is used to convert the 12V direct current output by the lithium battery pack into 220V alternating current;

[0020] It also includes a voltage conversion module, which is used to convert the 220V AC power output by the inverter circuit into 5V DC power or 12V DC power and output it to related equipment;

[0021] It also includes a switch circuit, which is used to receive a switch control signal and control the working state of the inverter circuit and the voltage conversion module;

[0022] The control module includes a serial port touch screen, which is used to display the real-time power of the lithium battery pack, the real-time input status of the mains power and vehicle power, and the power output status;

[0023] It also includes a serial port control module, which is used to control the switching of the connection status of each serial port;

[0024] It also includes a power IO and analog quantity acquisition module, which is used to detect the real-time power of the lithium battery pack and send the data to the serial port touch screen and control the inverter circuit status.

[0025] Furthermore, it also includes a chassis, a fixed slide groove is arranged at the lower part of the chassis, and a positioning pin hole is also arranged at the rear end of the chassis.

[0026] Furthermore, it also includes a vehicle-mounted fixed tray adapted to the fixed slide groove, the front end of the vehicle-mounted fixed tray is provided with a captive screw, and the rear end of the vehicle-mounted fixed tray is provided with a positioning pin adapted to the positioning pin hole.

[0027] Furthermore, the lithium battery pack adopts wide-temperature lithium iron phosphate batteries.

[0028] Furthermore, the serial port touch screen is fixedly arranged at the front end of the chassis, and physical buttons are also arranged at the front end of the chassis.

[0029] Furthermore, a front heat dissipation vent is provided at the front end of the chassis, and a rear heat dissipation vent is provided at the rear end of the chassis.

[0030] Furthermore, a female connector is provided at the rear end of the chassis, and the female connector is detachably connected to a cluster connector. A standard output interface is also provided at the rear end of the chassis, and the standard output interface includes a 220V AC output interface, a 12V DC output interface and a USB TYPE-C interface.

[0031] Furthermore, the cluster connector includes a mains input connection line, a vehicle charging connection line, a portable command box connection line, an exterior lighting connection line and a bar lift connection line.

[0032] The beneficial effects of the present invention include:

[0033] The invention adopts high-quality hard aluminum material, which is light in weight, small in size and easy to carry;

[0034] The multifunctional vehicle-mounted power unit is fixed by a slide rail mechanism. Through this structure, the present invention effectively solves the problem of rapid disassembly;

[0035] Fully visual operation, one-button operation can power on and start the entire system, and multiple power supply parameters are displayed clearly, making it easy and safe to use.

[0036] The input and output interfaces of the power unit are integrated into a modular cluster connector. When installing and removing from the vehicle, only one interface needs to be plugged in and out, which is convenient and quick.

[0037] It can be used in vehicles and outdoors, has military-grade quality, and can adapt to harsh climates and natural environments.

[0038] The built-in wide-temperature lithium iron phosphate battery can provide power for internal and external devices of the vehicle when there is no mains power or the vehicle is parked.

[0039] It can be connected to the vehicle chassis battery and has ACC detection function. When the vehicle is started, it can charge the built-in battery of the power unit. When the vehicle is turned off, it will automatically disconnect the charging of the built-in battery of the power unit to protect the vehicle chassis battery.

[0040] It has UPS function and can be connected to the mains to power the equipment when parked, while charging its internal battery. When the mains is suddenly disconnected, it automatically switches to the built-in battery of the power unit to power the equipment in the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a system relationship connection block diagram of the present invention;

[0042] Figure 2 It is a schematic diagram of the front structure of the present invention;

[0043] Figure 3 It is a schematic diagram of the structure of the back of the present invention;

[0044] Figure 4 It is a schematic diagram of the side structure of the present invention;

[0045] In the attached figure: 1. Vehicle-mounted fixed tray, 2. Locating pin, 3. Captive screw, 4. Cluster connector, 5. AC input connection cable, 6. Vehicle-mounted charging connection cable, 7. Portable command box connection cable, 8. Exterior lighting connection cable, 9. Bar lift connection cable, 10. Connector female head, 11. Standard output interface, 12. Rear heat dissipation port, 13. Locating pin hole, 14. Serial port touch screen, 15. Physical buttons, 16. Front heat dissipation port, 17. Fixed slide slot. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the present invention more clear, the following will be combined with the appended claims of the present invention. Figure 1 ~Attached Figure 4 , the present invention is described in more detail.

[0047] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0048] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0049] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0050] The present invention provides a vehicle-mounted multifunctional power unit power distribution method,

[0051] S1: Check the vehicle power and mains power access status;

[0052] S2: If the vehicle power and the mains power are connected at the same time, switch to the mains power charging mode;

[0053] If the vehicle power is connected but the mains power is not, the system switches to vehicle power charging mode;

[0054] If the vehicle power is not connected and the mains power is connected, it will switch to mains power charging mode;

[0055] Among them, the charging method of vehicle charging mode is:

[0056] S11: Setting the vehicle chassis battery voltage threshold to threshold N;

[0057] S12: Start the vehicle and detect the vehicle chassis battery voltage in real time. When the voltage reaches a threshold value N, the vehicle chassis battery charges the on-board multifunctional power unit;

[0058] S13: The vehicle stops and the chassis battery voltage is detected. When the voltage is lower than a threshold value N, the chassis battery stops charging the on-board multifunctional power unit.

[0059] Among them, the charging method of the mains charging mode is:

[0060] S21: The mains is connected and supplies power directly to the multifunctional power unit, and at the same time, the mains is connected and charges the multifunctional power unit;

[0061] S22: Real-time detection of the mains power access status. If the mains power access status is maintained, then step S01 is maintained;

[0062] S23: Real-time detection of the mains power access status. If the mains power access status is abnormal, charging is stopped and power is switched to the built-in battery of the multifunctional power unit.

[0063] Another aspect of the present invention also provides a vehicle-mounted multifunctional power unit power distribution system, including an energy storage module, including a lithium battery pack, which is used to store electrical energy; also including an input switching circuit, which is used to access a 12V DC vehicle power or a 220 AC mains power; also including a charging circuit, which is used to convert the 12V DC vehicle power or the 220 AC mains power into 12V DC power and connect it to the lithium battery pack and charge it; a power distribution module, including an inverter circuit, which is used to convert the 12V DC power output by the lithium battery pack into 220V AC power; also including a voltage conversion module, which is used to convert the 220V AC power output by the inverter circuit into 5V DC power or 12V DC power and output it to related equipment; also including a switch circuit, which is used to receive a switch control signal and control the working state of the inverter circuit and the voltage conversion module; a control module, including a serial port touch screen 14, which is used to display the real-time power of the lithium battery pack, the real-time input state of the mains power and the vehicle power, and the power output state; also including a serial port control module, which is used to control the connection state of each serial port. The invention also includes a power supply IO and an analog quantity acquisition module, which is used to detect the real-time power of the lithium battery pack and send the data to the serial port touch screen 14 and control the inverter circuit state; the invention also includes a chassis, a fixed slide slot 17 is provided at the lower part of the chassis, and a positioning pin hole 13 is also provided at the rear end of the chassis; the invention also includes a vehicle-mounted fixed tray 1 adapted to the fixed slide slot 17, a captive screw 3 is provided at the front end of the vehicle-mounted fixed tray 1, and a positioning pin 2 adapted to the positioning pin hole 13 is provided at the rear end of the vehicle-mounted fixed tray 1; the lithium battery pack adopts a wide-temperature lithium iron phosphate battery; the serial port touch screen 14 is fixedly arranged at the front end of the chassis, and a physical button 15 is also provided at the front end of the chassis; a front heat dissipation port 16 is provided at the front end of the chassis, and a rear heat dissipation port 12 is provided at the rear end of the chassis; a connector female head 10 is provided at the rear end of the chassis, and a cluster connector 4 is connected in a detachable manner, and a standard output interface 11 is also provided at the rear end of the chassis, and the standard output interface 11 includes a 220V AC output interface, a 12V DC output interface and a USB TYPE-C interface; the cluster connector 4 includes a mains input connection line 5, a vehicle charging connection line 6, a portable command box connection line 7, an exterior lighting connection line 8 and a bar lift connection line 9.

[0064] One embodiment of the present invention is as follows:

[0065] A vehicle-mounted multifunctional power unit power distribution method,

[0066] S1: Detect the access status of vehicle power and mains power, and perform automatic control through the modbus control protocol to achieve automatic switching, lightning protection, over-voltage and under-voltage leakage protection, and over-current protection among mains power, vehicle charger, and battery power.

[0067] S2: If the vehicle power and the mains power are connected at the same time, the charging mode is switched to the mains power charging mode, and the lithium battery pack is charged with 220V AC mains power;

[0068] If the vehicle power is connected but the mains power is not, the system switches to vehicle power charging mode and uses 12V DC vehicle power to charge the lithium battery pack.

[0069] If the vehicle power is not connected but the mains power is connected, the vehicle power charging mode is switched to use 220V AC mains power to charge the lithium battery pack.

[0070] Among them, the charging method of vehicle charging mode is:

[0071] S11: Setting the vehicle chassis battery voltage threshold to threshold N;

[0072] S12: Start the vehicle and perform real-time detection of the vehicle chassis battery voltage through the ACC detection function. When the vehicle chassis battery voltage reaches a threshold value N, the requirement of simultaneously supplying power to the vehicle equipment and charging the on-board multifunctional power unit is met. At this time, the vehicle chassis battery charges the on-board multifunctional power unit.

[0073] S13: When the vehicle stops, the chassis battery voltage will gradually decrease. At this time, the chassis battery voltage is detected by the ACC detection function. When the voltage is lower than the threshold value N, continuing to charge the on-board multifunctional power unit may cause the chassis battery to run low, and the chassis battery stops charging the on-board multifunctional power unit.

[0074] Among them, the charging method of the mains charging mode is:

[0075] S21: The mains is connected and supplies power directly to the multifunctional power unit. At the same time, the mains is connected and charges the multifunctional power unit. Both paths are carried out simultaneously.

[0076] S22: Real-time detection of the mains power access status. If the mains power access status is maintained, then step S01 is maintained;

[0077] S23: Real-time detection of the mains power access status. If the mains power access status is abnormal, such as abnormal power outage or abnormal voltage, in order to protect the lithium battery pack and on-board equipment, charging is stopped and switched to the built-in battery of the multi-functional power unit for power supply, realizing the UPS uninterruptible power supply function and providing stable power supply for various devices in the vehicle.

[0078] Another embodiment of the present invention is as follows:

[0079] A vehicle-mounted multifunctional power unit power distribution system, comprising:

[0080] The chassis has a fixed slide groove 17 at the lower part, a positioning pin hole 13 at the rear end of the chassis, and a vehicle-mounted fixed tray 1 adapted to the fixed slide groove 17, a captive screw 3 is provided at the front end of the vehicle-mounted fixed tray 1, and a positioning pin 2 adapted to the positioning pin hole 13 is provided at the rear end of the vehicle-mounted fixed tray 1.

[0081] When in use, the vehicle-mounted fixed tray 1 is installed inside the vehicle. The chassis can be pulled on the vehicle-mounted fixed tray 1 through the fixed slide groove 17. At the same time, a positioning pin 2 is provided at its rear end. When the chassis is pushed into the innermost part, the positioning pin 2 will be inserted into the positioning pin hole 13 on the chassis to achieve positioning. Then, by tightening the captive screw 3, the chassis and the vehicle-mounted fixed tray 1 can be fixedly connected.

[0082] A lithium battery pack is installed in the chassis. The lithium battery pack uses wide-temperature lithium iron phosphate batteries and can provide power for internal and external devices of the vehicle when there is no mains power or the vehicle is parked.

[0083] A serial port touch screen 14 and a physical button 15 are provided at the front end of the chassis. The serial port touch screen 14 can display the remaining power of the lithium battery pack, the voltage, current and power of the power input, the voltage, current and kilometer of the power output, and set a secondary menu at the same time, including status display, information management, screen lifting, fault record and system settings. The function of the physical button 15 is to perform operations, including system startup, system restart, screen switch, abnormality elimination and custom switch. It is a fully visualized operation. The whole system can be powered on and started with one button. Various power parameters are displayed clearly, which is convenient and safe to use.

[0084] The front end of the chassis is provided with a front heat dissipation vent 16, and the rear end of the chassis is provided with a rear heat dissipation vent 12. At the same time, the chassis is made of aluminum alloy, which is suitable for both vehicle and outdoor use, has military-grade quality, and can adapt to adverse climates and natural environments.

[0085] A connector female 10 is provided at the rear end of the chassis. The connector female 10 is connected to the cluster connector 4 in a detachable manner, integrating the input and output interfaces of the power unit into a modular cluster connector 4. When installing and disassembling on the vehicle, only one interface needs to be plugged in and out, which is convenient and quick. The cluster connector 4 includes a mains input connection line 5, a vehicle-mounted charging connection line 6, a portable command box connection line 7, an exterior lighting connection line 8 and a bar lifting connection line 9.

[0086] The rear end of the chassis is also provided with a standard output interface 11, which includes a 220V AC output interface, a 12V DC output interface and a USB TYPE-C interface.

[0087] It also includes a module system, which corresponds to the above-mentioned hardware device, including a wide-temperature lithium iron phosphate battery pack, a power management and protection circuit, a power inverter circuit, an AC / DC conversion module, a serial port controller, and a serial port touch screen 14, which are composed and integrated in a miniaturized aluminum alloy chassis. The equipment has a three-proof design and can adapt to outdoor use on rainy days. At the same time, it uses a clustered quick-plug waterproof connector to facilitate temporary disassembly and assembly when getting on and off the vehicle.

[0088] Specifically, it includes energy storage modules, which include lithium battery packs for storing electrical energy.

[0089] An input switching circuit for connecting to 12V DC vehicle power or 220 AC mains power and a charging circuit for converting 12V DC vehicle power or 220 AC mains power into 12V DC power and connecting and charging the lithium battery pack, which can detect the real-time power connection status through the ACC detection function and then automatically switch the input mode;

[0090] The power distribution module includes an inverter circuit, which is used to convert the 12V DC power output by the lithium battery pack into 220V AC power, and also includes a voltage conversion module, which is used to convert the 220V AC power output by the inverter circuit into 5V DC power or 12V DC power and output it to related equipment;

[0091] The inverter circuit and the voltage conversion module are controlled by the switching circuit. The switching circuit receives the switching control signal and controls the working status of the inverter circuit and the voltage conversion module. The 12V DC power of the lithium battery pack is converted into 220V AC power through the inverter circuit and output for use by vehicle-mounted equipment that requires 220V AC power. Then, the 220V AC power is converted into 12V DC power or 5V DC power through the voltage conversion module, and is used for use by vehicle-mounted equipment that requires 12V DC power or 5V DC power, and is output through the DC output interface or the USB TYPE-C interface.

[0092] The control module includes a serial port touch screen 14, which is used to display the real-time power of the lithium battery pack, the real-time input status of the mains power and the vehicle power, and the power output status. The touch screen displays the control function. The touch screen communicates with the PLC through the serial port. The PLC is used as a centralized control system to control the output of the multifunctional power unit.

[0093] It also includes a serial port control module corresponding to the physical button 15, which is used to control the switching of the connection status of each serial port and can output a switch control signal to the switch circuit to control it.

[0094] It also includes a power supply IO and an analog quantity acquisition module, which are used to detect the real-time power level of the lithium battery pack and send the data to the serial port touch screen 14 and control the inverter circuit state. The serial port touch screen 14, the serial port control module and the power supply IO and the analog quantity acquisition module are connected via the MODBUS protocol, and can perform automatic control to realize automatic switching of AC power, car charger and battery power, lightning protection, over- and under-voltage leakage protection, over-current protection, one-key timing start, real-time monitoring of input and output battery power, and develop visual control software in the serial port touch screen 14, so that users can control the power system of the entire vehicle in the car with a graphical interface. The platform lifting operation is also integrated into the power supply control interface and supports one-key start.

[0095] It should be noted that the terms "first, second and third" in the present invention are only used for descriptive purposes and do not indicate any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0096] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A method for distributing power of a vehicle-mounted multifunctional power unit, characterized in that: S1: Check the vehicle power and mains power access status; S2: If the vehicle power and the mains power are connected at the same time, switch to the mains power charging mode; if the vehicle power is connected but the mains power is not connected, switch to the vehicle power charging mode; If the vehicle power is not connected and the mains power is connected, it will switch to mains power charging mode; Among them, the charging method of vehicle charging mode is: S11: Setting the vehicle chassis battery voltage threshold to threshold N; S12: Start the vehicle and detect the vehicle chassis battery voltage in real time. When the voltage reaches a threshold value N, the vehicle chassis battery charges the on-board multifunctional power unit; S13: The vehicle stops and the chassis battery voltage is detected. When the voltage is lower than a threshold value N, the chassis battery stops charging the on-board multifunctional power unit. Among them, the charging method of the mains charging mode is: S21: The mains is connected and supplies power directly to the multifunctional power unit, and at the same time, the mains is connected and charges the multifunctional power unit; S22: Real-time detection of the mains power access status. If the mains power access status is maintained, then step S01 is maintained; S23: Real-time detection of the mains power access status. If the mains power access status is abnormal, charging is stopped and power is switched to the built-in battery of the multifunctional power unit.

2. A vehicle-mounted multifunctional power unit power distribution system, applied to the vehicle-mounted multifunctional power unit power distribution method according to claim 1, characterized in that: include An energy storage module, including a lithium battery pack, which is used to store electrical energy; It also includes an input switching circuit, which is used to connect to a 12V DC vehicle power supply or a 220 AC mains power supply; It also includes a charging circuit, which is used to convert the 12V DC vehicle power or 220 AC mains power into 12V DC power and connect it to the lithium battery pack to charge it; A power distribution module, including an inverter circuit, which is used to convert the 12V direct current output by the lithium battery pack into 220V alternating current; It also includes a voltage conversion module, which is used to convert the 220V AC power output by the inverter circuit into 5V DC power or 12V DC power and output it to related equipment; It also includes a switch circuit, which is used to receive a switch control signal and control the working state of the inverter circuit and the voltage conversion module; The control module includes a serial port touch screen, which is used to display the real-time power of the lithium battery pack, the real-time input status of the mains power and vehicle power, and the power output status; It also includes a serial port control module, which is used to control the switching of the connection status of each serial port; It also includes a power IO and analog quantity acquisition module, which is used to detect the real-time power of the lithium battery pack and send the data to the serial port touch screen and control the inverter circuit status.

3. The vehicle-mounted multifunctional power unit power distribution system according to claim 2, characterized in that: The machine case also includes a chassis, a fixing slide groove is arranged at the lower part of the chassis, and a positioning pin hole is arranged at the rear end of the chassis.

4. The vehicle-mounted multifunctional power unit power distribution system according to claim 3 is characterized in that: It also includes a vehicle-mounted fixed tray matched with the fixed slide groove, the front end of the vehicle-mounted fixed tray is provided with a captive screw, and the rear end of the vehicle-mounted fixed tray is provided with a positioning pin matched with the positioning pin hole.

5. The vehicle-mounted multifunctional power unit power distribution system according to claim 2, characterized in that: The lithium battery pack adopts a wide-temperature lithium iron phosphate battery.

6. The vehicle-mounted multifunctional power unit power distribution system according to claim 2, characterized in that: The serial port touch screen is fixedly arranged at the front end of the chassis, and the front end of the chassis is also provided with physical buttons.

7. The vehicle-mounted multifunctional power unit power distribution system according to claim 2, characterized in that: The front end of the chassis is provided with a front heat dissipation outlet, and the rear end of the chassis is provided with a rear heat dissipation outlet.

8. The vehicle-mounted multifunctional power unit power distribution system according to claim 2, characterized in that: A female connector is provided at the rear end of the chassis, and the female connector is detachably connected to a cluster connector. A standard output interface is also provided at the rear end of the chassis, and the standard output interface includes a 220V AC output interface, a 12V DC output interface and a USB TYPE-C interface.

9. The vehicle-mounted multifunctional power unit power distribution system according to claim 8, characterized in that: The cluster connector includes a mains input connection line, a vehicle charging connection line, a portable command box connection line, an exterior lighting connection line and a bar lift connection line.

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