A multi-functional power distribution box and charging / discharging control system for electric vehicles

Abstract

This utility model relates to the field of automobile manufacturing, specifically a multi-functional power distribution box and charging / discharging control system for electric vehicles. The multi-functional power distribution box includes a main control unit (MCU), a communication unit, a switch acquisition unit, a current detection unit, a power drive unit, and a voltage conversion unit. The charging / discharging control system includes the aforementioned multi-functional intelligent power distribution box, an in-vehicle one-button control switch, an in-vehicle 220V socket, an external V2L socket, a 12V power outlet, a USB power outlet, a high-voltage battery pack, a vehicle networking terminal, and a mobile phone control terminal. It converts the high-voltage DC power from the high-voltage battery pack into 220V AC power and 12V and 5V DC low-voltage power for use by the in-vehicle discharge interfaces; allows simultaneous use of multiple interfaces; enables one-button control of the opening and closing of all discharge interfaces from inside the vehicle; and provides real-time display of the on / off status and current information of the in-vehicle discharge interfaces, as well as remote control of the switch opening and closing functions.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, specifically to a multi-functional power distribution box and charging / discharging control system for electric vehicles. Background Technology

[0002] Electric vehicles have multiple AC discharge interfaces, including external V2L discharge and internal 220V discharge. However, most vehicle charging and discharging units (DCDC & OBC) are platform-based components with only one AC charging and discharging interface or even no discharge function, making it impossible to simultaneously and independently control external V2L and internal 220V discharge. Electric vehicles have numerous 12V power outlets and fast-charging USB ports. These outlets typically use the power from the 12V low-voltage battery. However, the capacity of the 12V low-voltage battery in electric vehicles is relatively small, and it cannot provide power for extended periods when the vehicle is not under high voltage. A multi-functional intelligent power distribution box, integrating DC / DC and DC / AC voltage conversion units, can directly supply power from the battery without requiring the vehicle to be in a power-on wake-up state. The power distribution box itself can convert the high-voltage DC power from the high-voltage battery pack into 220V AC and 12V (and below) DC power, continuing to operate even when the vehicle is in sleep mode. Operating through 220V discharge interfaces, 12V power outlets, USB power outlets, etc., requires the vehicle to be powered on and woken up, leading to excessive power consumption. In existing technologies, there is no one-button control switch inside the vehicle, which cannot meet the needs of passengers to simultaneously control the opening and closing of the 220V socket, 12V, and 5V discharge interface. Furthermore, remote control and timed operation are not possible. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a multi-functional power distribution box and charging / discharging control system for electric vehicles. This system features one-button control switches in both the front and rear seats, enabling one-button control of the charging / discharging interfaces in case of emergencies. It also includes a mobile phone control terminal, allowing individual control of these interfaces' opening / closing and display of current information via a mobile app. The specific technical solution is as follows:

[0004] A multi-functional power distribution box for electric vehicles includes a main control unit (MCU), a communication unit, a switch acquisition unit, a current detection unit, a power drive unit, and a voltage conversion unit. The MCU is responsible for the logic control of all power distribution ports. The communication unit is responsible for information exchange with in-vehicle modules, receiving local control commands, user remote control commands, high-voltage battery SOC status, and sending socket switch status and current information. The switch acquisition unit collects switch signals from switches and interfaces within the power distribution box. The current detection unit detects the current in the sockets. The power drive unit drives the relays or MOSFETs in each socket circuit to conduct. The voltage conversion unit converts the DC power from the high-voltage battery pack into 220V AC power and 12V or lower DC power.

[0005] Furthermore, switch acquisition unit 1 is electrically connected to the socket and is responsible for acquiring the micro switch signals on the 220V socket, V2L socket, 12V power outlet, and USB power outlet in the vehicle. Switch acquisition unit 2 is electrically connected to the in-vehicle switches and is responsible for acquiring the status of in-vehicle discharge switch 1 and in-vehicle discharge switch 2.

[0006] This utility model also provides a charging and discharging control system for a multi-functional intelligent power distribution box, which includes the aforementioned multi-functional intelligent power distribution box, an in-vehicle one-button control switch 1, an in-vehicle one-button control switch 2, an in-vehicle 220V socket, an external V2L socket, a 12V power outlet, a USB power outlet, a high-voltage battery pack, a vehicle networking terminal, and a mobile phone control terminal; the multi-functional intelligent power distribution box is connected to the in-vehicle one-button control switch via wires, and the multi-functional intelligent power distribution box is connected to the in-vehicle 220V socket, the external V2L socket, the 12V power outlet, and the USB power outlet via wires; the multi-functional intelligent power distribution box is connected to the high-voltage battery pack via a high-voltage line; the multi-functional intelligent power distribution box is connected to the vehicle networking terminal via a CAN or Ethernet vehicle network; and the mobile phone remote control terminal is wirelessly connected to the in-vehicle vehicle networking terminal.

[0007] Furthermore, the mobile remote control terminal displays the real-time status of the switch and current of each socket and port, and can control the opening and closing of each port, as well as set the timed working duration.

[0008] Furthermore, the in-vehicle one-button control switch 1 and the in-vehicle one-button control switch 2 are respectively arranged in the front and rear rows of the vehicle, so that passengers can control the switches of all discharge ports with one button.

[0009] This invention is fully compatible with existing vehicle architectures, requiring no changes to existing hardware. It only requires the addition of a multi-functional power distribution box and control switch to simultaneously control multiple 220V discharge ports, 12V ports, and USB ports within the vehicle. It eliminates the need for DC-DC and OBC support for discharge functionality, enabling the vehicle to simultaneously perform 220V charging and discharging. All discharge ports operate without requiring vehicle power-on or other module activation, reducing overall vehicle standby power consumption. A one-button control switch within the vehicle allows front and rear passengers to easily disable the discharge ports. A mobile app allows remote control of the charging and discharging ports, enabling users to view their real-time status. Attached Figure Description

[0010] Figure 1 Block diagram of multi-functional intelligent power distribution box and charging / discharging control system;

[0011] Figure 2 Actual product image of the multi-functional intelligent power distribution box;

[0012] Figure 3 Screenshot of the mobile remote control terminal interface. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figure 1 As shown: A multi-functional power distribution box for an electric vehicle includes a main control unit (MCU), a communication unit, a switch acquisition and detection unit, a current detection unit, a power drive unit, and voltage conversion modules such as DC / DC and DC / AC. The MCU is responsible for the logic control of all power distribution ports. The communication unit is responsible for information interaction with in-vehicle modules, receiving local control commands, user remote control commands, high-voltage battery SOC status, and sending information such as the switch status and current of the sockets. Switch acquisition unit 1 is electrically connected to the sockets and is responsible for acquiring micro-switch signals from the 220V socket, V2L socket, 12V power outlet, and USB power outlet in the vehicle. Switch acquisition unit 2 is electrically connected to the in-vehicle switches and is responsible for acquiring the status of in-vehicle discharge switches 1 and 2. The current detection unit is responsible for detecting the current in the sockets. The power drive unit is responsible for driving the relays or MOSFETs in each socket circuit to conduct. The voltage conversion unit is responsible for converting the DC power from the high-voltage battery pack into 220V AC power and 12V or lower DC power. Figure 2 This is a picture of the actual multi-functional intelligent power distribution box of the electric vehicle.

[0015] like Figure 1 As shown, a charging and discharging control system matching a multi-functional intelligent power distribution box includes a multi-functional intelligent power distribution box, an in-vehicle one-button control switch 1, an in-vehicle one-button control switch 2, an in-vehicle 220V socket, an external V2L socket, a 12V power outlet, a USB power outlet, a high-voltage battery pack, a vehicle networking terminal, and a mobile phone control terminal. The multi-functional intelligent power distribution box is connected to the in-vehicle one-button control switch via wires; the multi-functional intelligent power distribution box is also connected to the in-vehicle 220V socket, the external V2L socket, the 12V power outlet, and the USB power outlet via wires; the multi-functional intelligent power distribution box is connected to the high-voltage battery pack via a high-voltage line; the multi-functional intelligent power distribution box is connected to the vehicle networking terminal via a vehicle network such as CAN or Ethernet; and the mobile phone remote control terminal is wirelessly connected to the in-vehicle vehicle networking terminal.

[0016] like Figure 3 The diagram shows a cross-section of the mobile control terminal, which can display the real-time status of each socket and port, such as its on / off state and current. It can also control the opening and closing of each port and set the timed working duration.

[0017] The in-vehicle one-button control switch 1 and the in-vehicle one-button control switch 2 are respectively located in the front and rear rows of the vehicle, making it convenient for passengers to control the switches of all discharge ports with one button.

[0018] This device can convert the high-voltage DC power from a high-voltage battery pack into 220V AC power and 12V, 5V, and other low-voltage DC power for use by the vehicle's discharge interfaces. A multi-functional intelligent power distribution box integrates a control unit, a communication unit, a switch detection unit, a power drive unit, and a current detection unit, enabling simultaneous operation of multiple in-vehicle 220V discharges, external V2L discharges, multiple in-vehicle 12V interfaces, and multiple in-vehicle USB interfaces. It includes two in-vehicle one-button control switches, 1 and 2, allowing for one-button control of all discharge interfaces from inside the vehicle. A mobile control terminal displays the real-time switch status and current information of the in-vehicle discharge interfaces and allows for remote control of the switches.

[0019] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A multi-functional power distribution box for electric vehicles, characterized in that: It includes a main control unit (MCU), a communication unit, a switch acquisition unit, a current detection unit, a power drive unit, and a voltage conversion unit. The main control unit (MCU) is responsible for the logic control of all power distribution ports; the communication unit is responsible for information interaction with the in-vehicle modules, receiving local control commands, user remote control commands, high-voltage battery SOC status, and sending socket switch status and current information. The switch acquisition unit acquires switch signals from switches and interfaces within the distribution box; the current detection unit is responsible for detecting the current in the sockets; the power drive unit is responsible for driving the relays or MOSFETs in each socket circuit to conduct; and the voltage conversion unit is responsible for converting the DC power from the high-voltage battery pack into 220V AC power and 12V and below DC power.

2. The multi-functional power distribution box for electric vehicles according to claim 1, characterized in that: The switch acquisition unit includes switch acquisition unit 1 and switch acquisition unit 2. Switch acquisition unit 1 is electrically connected to the socket and is responsible for acquiring the micro switch signals on the 220V socket, V2L socket, 12V power outlet and USB power outlet in the vehicle. Switch acquisition unit 2 is electrically connected to the in-vehicle switches and is responsible for acquiring the status of in-vehicle discharge switch 1 and in-vehicle discharge switch 2.

3. A charging and discharging control system for a multi-functional power distribution box as described in claim 1 or 2, characterized in that: It includes the aforementioned multi-functional power distribution box, in-vehicle one-button control switch 1, in-vehicle one-button control switch 2, in-vehicle 220V socket, in-vehicle V2L socket, 12V power outlet, USB power outlet, high-voltage battery pack, vehicle networking terminal and mobile phone control terminal; The multi-functional intelligent power distribution box is connected to the one-button control switch inside the vehicle via wires. The multi-functional intelligent power distribution box is also connected to the 220V socket inside the vehicle, the V2L socket outside the vehicle, the 12V power outlet, and the USB power outlet via wires. The multi-functional intelligent power distribution box is connected to the high-voltage battery pack via a high-voltage line. The multi-functional intelligent power distribution box is connected to the vehicle networking terminal via CAN or Ethernet vehicle network; the mobile remote control terminal is connected to the in-vehicle vehicle networking terminal wirelessly.

4. The charging and discharging control system of the multifunctional intelligent power distribution box according to claim 3, characterized in that: The mobile remote control terminal displays the real-time status of the switch and current of each socket and port, and can control the opening and closing of each port, as well as set the timer duration.

5. The charging and discharging control system of the multifunctional intelligent power distribution box according to claim 3, characterized in that: The in-vehicle one-button control switch 1 and the in-vehicle one-button control switch 2 are respectively located in the front and rear rows of the vehicle.

Images