Electric vehicle lead-acid battery charging mutual recognition cooperation module

Abstract

The utility model relates to the technical field of electric vehicle battery charging, in particular to an electric vehicle lead-acid battery charging mutual recognition cooperation module which comprises a charging socket and a charging fuse box which are coupled to a lead-acid battery charging cooperation protection board, and the lead-acid battery charging cooperation protection board is provided with a protection unit, a communication unit and a measurement unit. The protection unit is arranged in the charging fuse box, the input end of the communication unit is electrically connected with the charging socket, and the output end of the communication unit is electrically connected with the protection unit. According to the utility model, the charging socket, the lead-acid battery charging cooperative protection board and the charging fuse box are creatively integrated, so that the installation process is simplified, the overall stability and reliability of the system are improved, and the integrated design enables the charging socket and the protection module at the external interface of the electric vehicle to be installed in an integrated manner, thereby improving the reliability of the system. The device is more compact, convenient and efficient.

Description

Technical Field

[0001] This utility model relates to a charging mutual recognition and coordination module, and more particularly to a charging mutual recognition and coordination module for lead-acid batteries of electric vehicles, belonging to the field of electric vehicle battery charging technology. Background Technology

[0002] This application is for a lead-acid battery charging mutual recognition and coordination module designed for electric vehicles that meet the new national standard. This module innovatively integrates the charging socket and the lead-acid battery charging coordination protection board into one design, aiming to effectively solve the charging coordination certification problem between the battery and the charger of electric vehicles that meet the new national standard.

[0003] With the rapid development of the electric vehicle industry, the new national standard GB42295 has put forward higher requirements for the safety performance of electric vehicles and their accessories, including a charging collaboration certification mechanism between batteries and chargers to ensure the safety of the charging process. Therefore, it is particularly important to develop a module that can effectively recognize and work together between batteries and chargers, and is easy and convenient to install. Utility Model Content

[0004] The purpose of this utility model is to provide a charging mutual recognition and coordination module for lead-acid batteries in electric vehicles, which integrates the charging socket, the lead-acid battery charging coordination protection board, and the charging fuse box into one unit, simplifying the installation process and improving the overall stability and reliability of the system.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A charging mutual recognition and coordination module for lead-acid batteries in electric vehicles includes a charging socket and a charging fuse box coupled to a lead-acid battery charging coordination protection board. The lead-acid battery charging coordination protection board is provided with a protection unit, a communication unit, and a measurement unit. The protection unit is located inside the charging fuse box. The input terminal of the communication unit is electrically connected to the charging socket, and the output terminal of the communication unit is electrically connected to the protection unit.

[0007] The communication unit includes a communication circuit, which is electrically connected to the charging socket. The communication circuit includes transistors Q1, Q2, and Q3. Transistor Q1 is electrically connected to transistor Q2 through diode D1. Transistor Q1 is electrically connected to the measurement unit through resistor R8. Transistor Q3 is electrically connected to the measurement unit through diode D2.

[0008] Furthermore, a transistor Q4 is disposed between the transistor Q1 and the transistor Q3, and the transistor Q4 is electrically connected to the charging socket through a resistor R7.

[0009] Furthermore, a chip U1 is provided on the lead-acid battery charging collaborative protection board, the resistor R8 is electrically connected to pin 8 of the chip U1, and the diode D2 is electrically connected to pin 7 of the chip U1.

[0010] Furthermore, the measuring unit includes a detection circuit, on which a capacitor C1 and a measuring resistor R12 are connected in parallel. The capacitor C1 and the measuring resistor R12 are connected in parallel and electrically connected to pin 1 of the chip U1.

[0011] Furthermore, the protection unit includes a protection circuit, on which a switch SRA-1 is provided. Terminal 3 of the switch SRA-1 is electrically connected to the communication unit, and terminal 4 of the switch SRA-1 is electrically connected to the charging socket.

[0012] Furthermore, a transistor Q5 is connected to the switch SRA-1, and the transistor Q5 is electrically connected to pin 3 of the chip U1 through a resistor R11.

[0013] Furthermore, a diode D4 is connected to terminals 1 and 2 of the switch SRA-1, and a potentiometer VR1 is electrically connected to the output terminal of the diode D4. A capacitor C3 and a capacitor C4 are connected in parallel on the potentiometer VR1.

[0014] The beneficial effects of this utility model are as follows:

[0015] This module innovatively integrates the charging socket, lead-acid battery charging co-protection board, and charging fuse box into one unit, which simplifies the installation process and improves the overall stability and reliability of the system. This integrated design makes the charging socket and protection module located on the external interface of the electric vehicle more compact, convenient, and efficient. Attached Figure Description

[0016] Figure 1 This is the electrical schematic diagram of this utility model;

[0017] Figure 2 This is the detection circuit diagram of this utility model;

[0018] Figure 3 This is the communication circuit diagram of this utility model;

[0019] Figure 4 This is the protection circuit diagram of this utility model.

[0020] In the diagram, 1 is the lead-acid battery charging protection board; 2 is the charging socket; 3 is the charging fuse box; 4 is the protection unit; 401 is the protection circuit; 5 is the communication unit; 501 is the communication circuit; 6 is the measurement unit; and 601 is the detection circuit. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-4 As shown, the electric vehicle lead-acid battery charging mutual recognition and coordination module provided in this embodiment includes a charging socket 2 and a charging fuse box 3 coupled to a lead-acid battery charging coordination protection board 1. The lead-acid battery charging coordination protection board 1 is provided with a protection unit 4, a communication unit 5 and a measurement unit 6. The protection unit 4 is located inside the charging fuse box 3. The input end of the communication unit 5 is electrically connected to the charging socket 2, and the output end of the communication unit 5 is electrically connected to the protection unit 4. This module innovatively integrates the charging socket 2, the lead-acid battery charging coordination protection board 1 and the charging fuse box 3 into one unit, which simplifies the installation process and improves the overall stability and reliability of the system. This integrated design makes the charging socket 2 located at the external interface of the electric vehicle and the lead-acid battery charging coordination protection board 1 integrated and installed, which is more compact, convenient and efficient. Through communication coordination authentication and real-time monitoring, charging safety accidents caused by charger mismatch or abnormal battery status are effectively avoided.

[0023] This invention ensures seamless compatibility between electric vehicle batteries meeting the new national standard and compliant chargers, improving the universality of electric vehicle accessories and user experience. It provides an effective technical solution for mutual recognition between electric vehicle batteries and chargers, which helps to promote the standardization process of the entire electric vehicle industry.

[0024] The communication unit 5 includes a communication circuit 501, which is electrically connected to the charging socket 2. The communication circuit 501 includes transistors Q1, Q2, and Q3. Transistor Q1 is electrically connected to transistor Q2 through diode D1. Transistor Q1 is electrically connected to the measurement unit 6 through resistor R8. Transistor Q3 is electrically connected to the measurement unit 6 through diode D2. Transistor Q4 is located between transistors Q1 and Q3 and is electrically connected to the charging socket 2 through resistor R7. Before charging, the charger needs to perform encrypted communication and collaborative authentication with the lead-acid battery charging collaborative protection board 1 through the communication unit 5. Only when both parties successfully communicate and confirm that they are matched correctly will the charging process be allowed to start, effectively preventing accidental charging or the use of incompatible chargers.

[0025] Furthermore, such as Figure 2As shown, a chip U1 is provided on the lead-acid battery charging co-protection board 1. Resistor R8 is electrically connected to pin 8 of chip U1, and diode D2 is electrically connected to pin 7 of chip U1. The measurement unit 6 includes a detection circuit 601. A capacitor C1 and a measuring resistor R12 are connected in parallel on the detection circuit 601. After the capacitor C1 and the measuring resistor R12 are connected in parallel, they are electrically connected to pin 1 of chip U1. During the charging process, the voltage of the lead-acid battery and the temperature data of the lead-acid battery charging co-protection board 1 are collected in real time. If the temperature exceeds the limit, the protection device will be triggered to stop charging.

[0026] This information is then communicated with the charger to collaboratively control the charging strategy, such as adjusting the charging current and voltage, in order to achieve safer and more efficient charging.

[0027] Furthermore, such as Figure 4 As shown, the protection unit 4 includes a protection circuit 401. A switch SRA-1 is installed on the protection circuit 401. Terminal 3 of the switch SRA-1 is electrically connected to the communication unit 5, and terminal 4 of the switch SRA-1 is electrically connected to the charging socket 2. A transistor Q5 is connected to the switch SRA-1, and the transistor Q5 is electrically connected to pin 3 of the chip U1 through a resistor R11. A diode D4 is connected to terminals 1 and 2 of the switch SRA-1. A potentiometer VR1 is electrically connected to the output of the diode D4. Capacitors C3 and C4 are connected in parallel on the potentiometer VR1. The protection circuit 401 is responsible for controlling the charging switch between the charger and the battery, ensuring that charging is disconnected in the event of uncertification or overheating, and that charging is only resumed after successful certification and when the charging conditions are met. This prevents non-designated chargers from charging the electric vehicle battery.

[0028] Meanwhile, in accordance with GB42295 requirements, a charging fuse box must be installed at the charging end, which is also integrated into the module. The integrated design simplifies the installation steps, reduces installation costs, and also makes it easier for users to replace or upgrade the module themselves.

[0029] like Figures 1-4 As shown, the principle of the electric vehicle lead-acid battery charging mutual recognition and coordination module provided in this embodiment is as follows:

[0030] The charging socket 2 and the charging fuse box 3 are coupled to the lead-acid battery charging collaborative protection board 1. The lead-acid battery charging collaborative protection board 1 is equipped with a protection unit 4, a communication unit 5 and a measurement unit 6. The protection unit 4 is located inside the charging fuse box 3. The input end of the communication unit 5 is electrically connected to the charging socket 2 and the output end of the communication unit 5 is electrically connected to the protection unit 4. This module innovatively integrates the charging socket 2, the lead-acid battery charging collaborative protection board 1 and the charging fuse box 3 into one unit, which simplifies the installation process and improves the overall stability and reliability of the system. This integrated design makes the charging socket 2 located at the external interface of the electric vehicle and the lead-acid battery charging collaborative protection board 1 more compact, convenient and efficient. Through communication collaborative authentication and real-time monitoring, charging safety accidents caused by charger mismatch or abnormal battery status are effectively avoided.

[0031] This invention ensures seamless compatibility between electric vehicle batteries meeting the new national standard and compliant chargers, improving the universality of electric vehicle accessories and user experience. It provides an effective technical solution for mutual recognition between electric vehicle batteries and chargers, which helps to promote the standardization process of the entire electric vehicle industry.

[0032] The communication unit 5 includes a communication circuit 501, which is electrically connected to the charging socket 2. The communication circuit 501 includes transistors Q1, Q2, and Q3. Transistor Q1 is electrically connected to transistor Q2 through diode D1. Transistor Q1 is electrically connected to the measurement unit 6 through resistor R8. Transistor Q3 is electrically connected to the measurement unit 6 through diode D2. Transistor Q4 is located between transistors Q1 and Q3 and is electrically connected to the charging socket 2 through resistor R7. Before charging, the charger needs to perform encrypted communication and collaborative authentication with the lead-acid battery charging collaborative protection board 1 through the communication unit 5. Only when both parties successfully communicate and confirm that they are matched correctly will the charging process be allowed to start, effectively preventing accidental charging or the use of incompatible chargers.

[0033] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein. Any modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A charging mutual recognition and coordination module for lead-acid batteries in electric vehicles, comprising a charging socket (2) and a charging fuse box (3) coupled to a lead-acid battery charging coordination protection board (1), characterized in that, The lead-acid battery charging co-protection board (1) is provided with a protection unit (4), a communication unit (5) and a measurement unit (6). The protection unit (4) is located inside the charging fuse box (3). The input end of the communication unit (5) is electrically connected to the charging socket (2), and the output end of the communication unit (5) is electrically connected to the protection unit (4). The communication unit (5) includes a communication circuit (501), which is electrically connected to the charging socket (2). The communication circuit (501) includes transistors Q1, Q2, and Q3. Transistor Q1 is electrically connected to transistor Q2 through diode D1. Transistor Q1 is electrically connected to the measurement unit (6) through resistor R8. Transistor Q3 is electrically connected to the measurement unit (6) through diode D2.

2. The electric vehicle lead-acid battery charging mutual recognition and coordination module according to claim 1, characterized in that: A transistor Q4 is disposed between transistor Q1 and transistor Q3, and transistor Q4 is electrically connected to the charging socket (2) through resistor R7.

3. The electric vehicle lead-acid battery charging mutual recognition and coordination module according to claim 1, characterized in that: The lead-acid battery charging co-protection board (1) is provided with a chip U1, the resistor R8 is electrically connected to pin 8 of the chip U1, and the diode D2 is electrically connected to pin 7 of the chip U1.

4. The electric vehicle lead-acid battery charging mutual recognition and coordination module according to claim 3, characterized in that: The measuring unit (6) includes a detection circuit (601), on which a capacitor C1 and a measuring resistor R12 are connected in parallel. The capacitor C1 and the measuring resistor R12 are connected in parallel and electrically connected to pin 1 of the chip U1.

5. The electric vehicle lead-acid battery charging mutual recognition and coordination module according to claim 4, characterized in that: The protection unit (4) includes a protection circuit (401), on which a switch SRA-1 is provided. The 3rd terminal of the switch SRA-1 is electrically connected to the communication unit (5), and the 4th terminal of the switch SRA-1 is electrically connected to the charging socket (2).

6. The electric vehicle lead-acid battery charging mutual recognition and coordination module according to claim 5, characterized in that: A transistor Q5 is connected to the switch SRA-1, and the transistor Q5 is electrically connected to pin 3 of the chip U1 through a resistor R11.

7. The electric vehicle lead-acid battery charging mutual recognition and coordination module according to claim 6, characterized in that: A diode D4 is connected to terminals 1 and 2 of the switch SRA-1. A potentiometer VR1 is electrically connected to the output terminal of the diode D4. A capacitor C3 and a capacitor C4 are connected in parallel on the potentiometer VR1.

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