Special vehicle-mounted comprehensive uninterruptible power supply

Abstract

The utility model discloses a special vehicle-mounted comprehensive uninterruptible power supply, and relates to a special power supply. The device is connected with an automobile chassis power supply, an added storage battery and / or a commercial power supply, and comprises a cabinet, a cover plate, a front end control panel, a rear end interface panel, an AC / DC conversion module, a DC / AC inversion module, an AC input signal acquisition board, an AC output signal acquisition board, a DC output control board, a confluence switching board and a main control board. The AC / DC conversion module and the DC / AC inversion module are horizontally mounted in the case; the AC input signal acquisition board and the AC output signal acquisition board are respectively arranged at the front part and the rear part above the AC / DC conversion module; the DC output control board is arranged behind the DC / AC inversion module; the confluence switching board is arranged above the AC / DC conversion module; the main control board is arranged between the AC input signal acquisition board and the AC output signal acquisition board. According to the utility model, a multi-source input interface is provided, an automobile chassis power supply and an added storage battery can be connected in the whole process, and commercial power AC input is timely connected according to requirements and an external environment.

Description

Technical Field

[0001] The utility model relates to a special power supply, in particular to a special vehicle-mounted integrated uninterruptible power supply which connects a vehicle-mounted power supply with a vehicle chassis power supply, an additional storage battery and a mains power supply, facilitates switching of power supply and improves the power supply safety of external electrical equipment. Background Art

[0002] At present, the on-board power supplies used on some special vehicles have relatively simple functions, and the input sources are mostly single-source input. Some have multi-source input functions, but when other power sources are needed, the power supply needs to be turned off and the power supply to the vehicle-mounted equipment needs to be disconnected. This will cause many inconveniences in the use of the mounted equipment, and even cause certain risks of use due to power outages; secondly, most of the on-board power supplies currently used have only a small number of output ports and can only support devices that are compatible with the vehicle chassis power supply voltage. They cannot effectively power commonly used AC equipment, and do not have the ability to provide uninterrupted power supply. In addition, the ports are not controlled and cannot effectively protect the power supply safety of the mounted electrical equipment. Summary of the Invention

[0003] The utility model aims to solve the problem that the on-board power supply of existing special vehicles has a single function and does not have uninterrupted power supply. It provides a special on-board integrated uninterruptible power supply that connects the on-board power supply with the automobile chassis power supply, an additional battery and a mains power supply, facilitates switching of power supply sources, and improves the power supply safety of external electrical equipment.

[0004] The utility model is a special vehicle-mounted integrated uninterruptible power supply, which is characterized in that the control host of the uninterruptible power supply is connected to the vehicle chassis power supply, an additional battery and / or a mains power supply, wherein:

[0005] The control host includes a chassis, a cover, a front control panel, a rear interface panel, an AC / DC conversion module, a DC / AC inverter module, an AC input signal acquisition board, an AC output signal acquisition board, a DC output control board, a bus switching board and a main control board; the AC / DC conversion module and the DC / AC inverter module are horizontally installed inside the chassis, and the DC / AC inverter module is perpendicular to the AC / DC conversion module; the AC input signal acquisition board and the AC output signal acquisition board are respectively installed at the front and rear above the AC / DC conversion module; the DC output control board is arranged behind the DC / AC inverter module; the bus switching board is arranged above the AC / DC conversion module; and the main control board is arranged between the AC input signal acquisition board and the AC output signal acquisition board.

[0006] The chassis and cover are made of aluminum alloy profiles.

[0007] The front control panel is arranged at the front end of the chassis, and is provided with an input control protection switch, an output control button, an emergency stop button, an alarm indicator light, a touch display screen, a screen operation button, a power button, a mute button and a vent; the rear interface panel is arranged at the rear end of the chassis, and is integrated with an additional battery interface, a car power interface, an AC input interface, an output port, a grounding pile, a fan port and a nameplate.

[0008] A chassis mounting frame is provided at the bottom of the chassis, and the chassis is fixed on the automobile body through the chassis mounting frame.

[0009] The special vehicle-mounted integrated uninterruptible power supply is wired using modular assembly and summary wiring principles. The AC input line of the rear-end interface panel is led to the input control protection switch of the front-end control panel, passes through the current transformer on the AC input signal acquisition board, and is connected to the input end of the AC / DC conversion module. The output end of the AC / DC conversion module is connected to the DC input end of the bus switching board through the Schottky diode on the AC output signal acquisition board; the chassis power input line of the rear-end interface panel is led to the input control protection switch of the front-end control panel and connected to the chassis battery input end of the bus switching board; the additional battery line of the rear-end interface panel is directly connected to the additional battery port on the bus switching board; the AC output line passes through the current transformer on the AC output signal acquisition board and is connected to the rear-end interface panel; the output end of the DC / AC inverter module and the output end of the DC output control board are respectively connected to the output port of the rear-end interface panel; the communication control lines of the above-mentioned circuit boards are all connected to the main control board.

[0010] The special vehicle-mounted integrated uninterruptible power supply (UPS) described herein controls the entire circuit system through dedicated control software. The main control board monitors the vehicle chassis power supply voltage and the installed battery voltage in real time, and collects input signals from the AC input signal acquisition board in real time. If the vehicle chassis power supply voltage is detected to be lower than 24V or an AC input signal is detected, the vehicle chassis power input is disconnected to prevent further power consumption. If an AC input signal is detected, the main control board also controls the AC / DC conversion module to start converting AC power into DC power for use by the DC output control board and the DC / AC inverter module. If there is sufficient power, it is used to charge the installed battery. Ultimately, the UPS function is realized by the uninterrupted internal DC power.

[0011] The special vehicle-mounted integrated uninterruptible power supply of the utility model has a simple structure, is easy to use, and has a scientific design. It provides a multi-source input interface, and can fully connect the vehicle chassis power supply and the added battery. The AC input of the mains is connected in time according to demand and the external environment. It can monitor the vehicle chassis battery in real time. When the vehicle chassis power supply is insufficient, it can automatically switch to the added battery for power supply, thereby ensuring that the vehicle chassis battery is not over-consumed to prevent its power supply from causing the vehicle to fail to ignite. After connecting to the external AC power, it can switch to using only the external AC power to power the upper-mounted electrical equipment and charge the added battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of the utility model.

[0013] Figure 2 A schematic diagram of the front control panel.

[0014] Figure 3 This is a schematic diagram of the back-end interface panel.

[0015] Figure 4 This is the wiring diagram of this utility model.

[0016] Among them, there are chassis 1, chassis mounting frame 2, chassis front control panel 3, chassis rear interface panel 4, chassis cover 5, AC / DC conversion module 6, DC / AC inverter module 7, AC input signal acquisition board 8, AC output signal acquisition board 9, bus switching board 10, main control board 11, and DC output control board 12. DETAILED DESCRIPTION

[0017] Example 1: A special vehicle-mounted integrated uninterruptible power supply, wherein the control host of the uninterruptible power supply is connected to the vehicle chassis power supply, the additional battery, and the mains power supply separately or simultaneously, wherein:

[0018] The control host includes a chassis, a cover, a front control panel, a rear interface panel, an AC / DC conversion module, a DC / AC inverter module, an AC input signal acquisition board, an AC output signal acquisition board, a DC output control board, a bus switch board, and a main control board. The chassis and cover are made of aluminum alloy profiles. The AC / DC conversion module uses the RSP-750-15 controller module of Mean Well, and the DC / AC inverter module uses the NTS-250P-212 controller module of Mean Well. The AC input signal acquisition board is equipped with a DL-CT20CL-1000 / 1 current transformer for collecting AC input signals. No.; the AC output signal acquisition board is equipped with a current transformer model DL-CT20CL-1000 / 1 and a Schottky diode model MBR30045, which are used to collect AC output signals and control the backflow of output current; the DC output control board is a DC converter, which is used to convert DC power for power conversion or direct output; the bus switching board is a relay, which makes corresponding switching actions according to the control signal; the main control board uses a controller that integrates the GigaDevice GD32F103RBT6 microcontroller, and the control software is "Patrol Vehicle On-Board Integrated Power Supply Control Software V1.0", and the software registration number is "2024SR1396788".

[0019] The front control panel is set at the front end of the chassis, and its layout includes the input control protection switch, output control button, emergency stop button, alarm indicator light, touch display screen, screen operation button, power button, mute button and ventilation port; the rear interface panel is set at the rear end of the chassis, integrating the additional battery interface, car power interface, AC input interface, output port, grounding pile, fan port and nameplate; the input control protection switch includes a surge protector, leakage protector and DC circuit breaker, the AC / DC conversion module and DC / AC inverter module are installed horizontally inside the chassis, and the DC / AC inverter module is perpendicular to the AC / DC conversion module; the AC input signal acquisition board and the AC output signal acquisition board are installed at the front and rear above the AC / DC conversion module respectively; the DC output control board is set behind the DC / AC inverter module; the bus switching board is set above the AC / DC conversion module; the main control board controls the entire circuit system through the control software.

[0020] A chassis mounting frame is provided at the bottom of the chassis, which is fixed to the car body through the chassis mounting frame.

[0021] The special vehicle-mounted integrated uninterruptible power supply of the present application is wired using modular assembly and summary wiring principles. The AC input line of the rear-end interface panel is led to the input control protection switch of the front-end control panel, and then connected to the input end of the AC / DC conversion module after passing through the current transformer on the AC input signal acquisition board. The output end of the AC / DC conversion module is connected to the DC input end of the bus switching board through the Schottky diode on the AC output signal acquisition board; the chassis power input line of the rear-end interface panel is led to the input control protection switch of the front-end control panel and connected to the chassis battery input end of the bus switching board; the additional battery line of the rear-end interface panel is directly connected to the additional battery port on the bus switching board; the AC output line passes through the current transformer on the AC output signal acquisition board and is connected to the rear-end interface panel; the output end of the DC / AC inverter module and the output end of the DC output control board are respectively connected to the output port of the rear-end interface panel; the communication control lines of the above-mentioned circuit boards are all connected to the main control board.

[0022] This power supply controls the entire circuit system through dedicated control software. The main control board monitors the vehicle chassis power supply voltage and the installed battery voltage in real time, and collects the input signal from the AC input signal acquisition board in real time. If the vehicle chassis power supply voltage is detected to be lower than 24V or an AC input signal is detected, the vehicle chassis power input is disconnected to prevent it from being consumed. If an AC input signal is detected, the main control board also controls the AC / DC conversion module to start converting AC power into DC power for use by the DC output control board and the DC / AC inverter module. If there is sufficient power, it is used to charge the installed battery. Ultimately, the UPS function is achieved through the uninterrupted internal DC power.

Claims

1. A special vehicle-mounted integrated uninterruptible power supply, characterized in that The control host of the uninterruptible power supply is connected to the vehicle chassis power supply, additional battery and / or mains power supply, wherein: The control host includes a chassis, a cover, a front control panel, a rear interface panel, an AC / DC conversion module, a DC / AC inverter module, an AC input signal acquisition board, an AC output signal acquisition board, a DC output control board, a bus switching board and a main control board; the AC / DC conversion module and the DC / AC inverter module are horizontally installed inside the chassis, and the DC / AC inverter module is perpendicular to the AC / DC conversion module; the AC input signal acquisition board and the AC output signal acquisition board are respectively installed at the front and rear above the AC / DC conversion module; the DC output control board is arranged behind the DC / AC inverter module; the bus switching board is arranged above the AC / DC conversion module; and the main control board is arranged between the AC input signal acquisition board and the AC output signal acquisition board.

2. The special vehicle-mounted integrated uninterruptible power supply according to claim 1, characterized in that The chassis and cover are made of aluminum alloy profiles.

3. The special vehicle-mounted integrated uninterruptible power supply according to claim 1, characterized in that The front control panel is arranged at the front end of the chassis, and is provided with an input control protection switch, an output control button, an emergency stop button, an alarm indicator light, a touch display screen, a screen operation button, a power button, a mute button and a vent; the rear interface panel is arranged at the rear end of the chassis, and is integrated with an additional battery interface, a car power interface, an AC input interface, an output port, a grounding pile, a fan port and a nameplate.

4. The special vehicle-mounted integrated uninterruptible power supply according to claim 1, characterized in that A chassis mounting frame is provided at the bottom of the chassis, and the chassis is fixed on the automobile body through the chassis mounting frame.

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