A battery car charging protection device for a cell

Abstract

This application relates to the field of electric vehicle charging safety protection technology, and in particular to an electric vehicle charging protection device for residential communities. When a charging module experiences a short circuit or overvoltage fault, the detection module quickly identifies abnormal current and voltage signals. After analyzing the signals, the control module immediately disconnects the circuit breaker protection module corresponding to the faulty charging module. This reduces the risk of overall power outage caused by interference from the faulty charging module to normal charging modules, while preserving the normal power supply to other charging modules. Simultaneously, the control module triggers the alarm module to issue an alarm and sends the fault information to the receiving terminal, reducing the risk of overall power outage caused by the failure of a single charging module, reducing safety hazards, and improving the charging convenience and safety of residents in the community.

Description

Technical Field

[0001] This application relates to the field of electric vehicle charging safety protection technology, and in particular to an electric vehicle charging protection device for use in residential communities. Background Technology

[0002] Electric bicycles have become an important means of transportation for residents in the community for short-distance travel. The popularity of electric bicycles has greatly facilitated people's daily lives, but at the same time, it has also led to a significant increase in the demand for charging.

[0003] In related technologies, the electric vehicle charging facilities commonly found in residential communities are mostly centralized charging piles. These charging piles are usually equipped with multiple charging ports, which can provide charging services for multiple electric vehicles at the same time.

[0004] However, this method has the following drawbacks: charging stations usually use a circuit breaker to control the total power supply of the entire charging station. When a short circuit or overvoltage fault occurs in a battery connected to a charging port on the charging station, the power supply of the entire charging station will be completely cut off because the total power supply of the entire charging station is controlled by the same circuit breaker. This not only affects the normal use of the faulty battery, but also affects other battery that is charging on the same charging station, causing great inconvenience to the residents of the community. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a battery charging protection device for use in residential communities.

[0006] The technical solution of the electric vehicle charging protection device for residential communities provided in this application is as follows:

[0007] A charging protection device for electric bicycles in a residential community includes a charging protection system built into an electric bicycle charging station. The charging protection system comprises several charging modules, several circuit breaker protection modules, a detection module, a control module, and an alarm module.

[0008] The charging module, the circuit breaker protection module, the detection module, and the alarm module are all connected to the control module. Each of the charging modules corresponds to a circuit breaker protection module, and each charging module is connected to the main circuit through its corresponding circuit breaker protection module. Each of the charging modules is equipped with a detection module, which is electrically connected to the circuit breaker protection module. The control module is used to control the circuit breaker protection module to disconnect the charging module from the main circuit and to send an alarm signal through the alarm module.

[0009] By adopting the above technical solution, when a charging module experiences a short circuit or overvoltage fault, the detection module can identify the abnormal signal. The control module can then immediately disconnect the circuit breaker protection module corresponding to the faulty charging module based on the abnormal signal detected by the detection module. This reduces the risk of overall power outage caused by interference from the faulty charging module to the normal charging modules, while preserving the normal power supply to other charging modules. At the same time, the control module controls the alarm module to send fault location information and alarm signals, achieving the dual functions of fault isolation and intelligent early warning. This ensures the electrical safety of electric vehicle charging piles while reducing the risk of overall power outage caused by the failure of a single charging module, lowering safety hazards, and improving the charging convenience and safety of residents in the community.

[0010] Preferably, the detection module includes a current detection unit and a voltage sampling unit. The current detection unit is used to detect the charging current of the charging module, and the voltage sampling unit is used to detect the voltage state of the charging module. The signal generated by the detection module is transmitted to the control module.

[0011] By adopting the above technical solution, the current detection unit can capture abnormal current fluctuations in the charging module during the charging process, such as short circuits and overvoltages, while the voltage sampling unit can identify voltage anomalies in the charging module, such as overvoltages and undervoltages. The coordinated work of the current detection unit and the voltage sampling unit improves the comprehensive coverage of possible electrical fault scenarios during the charging process of electric vehicles. The real-time transmission of the signal generated by the detection module to the control module enables the control module to promptly cut off the circuit breaker protection module corresponding to the charging module, reducing the overall power outage risk caused by the interference of the faulty charging module to the normal charging module, and preserving the normal power supply of other charging modules.

[0012] Preferably, the control module includes an analysis unit and a storage unit. The analysis unit is used to analyze the signals transmitted by the detection module, and the storage unit is used to record the operating status, fault information, and fault history data of each charging module.

[0013] By adopting the above technical solution, the analysis unit can identify short circuits, overloads, overvoltages, and undervoltages by analyzing the current and voltage signals transmitted by the detection module in real time, and can locate the faulty charging module. The storage unit records the operating status, fault information, and historical fault data of each charging module based on the analysis results of the analysis unit. The fault information includes the location and cause of the charging module fault, and the historical fault data includes the fault type, occurrence time, and duration.

[0014] Preferably, the system also includes a receiving terminal. The alarm module includes a wireless communication unit and an alarm unit. The alarm unit is used to trigger an alarm within the electric vehicle charging station. The wireless communication unit is used to send the data analyzed by the analysis unit, the data recorded by the storage unit, and the alarm triggered by the alarm unit to the receiving terminal.

[0015] By adopting the above technical solution, when the detection module detects an abnormality in the charging module, the alarm unit can immediately trigger an alarm. At the same time, the wireless communication unit uploads the data analyzed by the analysis unit, the data recorded by the storage unit, and the alarm triggered by the alarm unit to the receiving terminal, reminding property staff to respond quickly and helping them to quickly locate the faulty charging module, reducing troubleshooting time. At the same time, based on historical fault data, the repair direction of the charging module can be determined. For example, when the electric vehicle charging station malfunctions at night, the alarm can wake up the on-duty personnel, and the faulty charging module can be located through the receiving terminal to handle the fault in a timely manner, shortening the fault handling time and reducing the risk of fire.

[0016] Preferably, the receiving terminal is configured as a community property management system, the wireless communication unit is connected to the community property management system, and the community property management system is connected to the control module.

[0017] By adopting the above technical solution, when the charging module malfunctions, the alarm unit can immediately trigger an alarm, which can be pushed to the community property management system in real time. Property staff can reduce on-site inspections and determine the specific location of the charging port, and at the same time, determine the repair direction of the charging module based on historical fault data.

[0018] Preferably, the device includes a charging port and a circuit breaker, wherein the charging module is mounted on the charging port, the circuit breaker protection module is mounted on the circuit breaker, and the charging port is electrically connected to the circuit breaker.

[0019] By adopting the above technical solution, the charging module in the charging socket is responsible for the charging function of the electric vehicle. The control module immediately cuts off the circuit breaker corresponding to the faulty charging socket, cuts off the charging circuit of the charging socket through the circuit breaker, and maintains the normal power supply of other charging modules, thereby reducing the impact on the normal operation of other charging sockets, reducing the risk of overall power outage caused by the failure of a single charging socket, reducing safety hazards, and improving the convenience of life for residents in the community.

[0020] Preferably, it also includes an interactive component, on which the community property management system is loaded.

[0021] By adopting the above technical solution, the interactive component displays the data analyzed by the analysis unit, the data recorded by the storage unit, and the alarms triggered by the alarm unit. For example, when a charging pile of an electric vehicle triggers a circuit breaker due to a short circuit in the charging module, the interactive component pops up an alarm, marks the specific location, and displays the cause of the fault. At the same time, it can provide repair directions based on historical data, thus shortening the fault response time.

[0022] Preferably, the interactive component includes a display screen and an input device, the display screen and the input device being electrically connected, the display screen being used to display the real-time status of the charging port, and the input device being used to manually reset a fault.

[0023] By adopting the above technical solution, the display screen intuitively displays the data analyzed by the analysis unit, the data recorded by the storage unit, and the alarms triggered by the alarm unit. Property staff can check at any time. When a charging port triggers the circuit breaker due to a short circuit, the display screen will immediately display the fault signal and alarm and mark the specific location, which is convenient for quickly locating the problem. The input device allows maintenance personnel to automatically disconnect and then manually reset the fault, reducing the occurrence of long-term power outages caused by temporary false alarms or brief abnormalities.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. When a charging module malfunctions, the detection module can quickly identify abnormal signals. The control module then immediately cuts off the circuit breaker protection module corresponding to the faulty charging module based on these signals, thereby ensuring that the normal power supply to other charging modules is not affected. At the same time, the control module will also trigger the alarm module to send fault location information and alarm signals, realizing the dual functions of fault isolation and intelligent early warning. This significantly improves the electrical safety of electric vehicle charging piles, effectively reduces the risk of overall power outages caused by the failure of a single charging module, lowers safety hazards, and provides a more convenient and safer charging environment for residents in the community.

[0026] 2. The detection module synchronously transmits the collected current and voltage data to the control module, enabling the control module to promptly cut off the circuit breaker protection module corresponding to the charging module. This reduces the risk of overall power outage caused by interference from the faulty charging module to the normal charging module, while preserving the normal power supply to other charging modules.

[0027] 3. The control module includes an analysis unit and a storage unit. The analysis unit analyzes the current and voltage data transmitted by the detection module in real time, and can accurately identify short circuit, overload, overvoltage and undervoltage abnormalities, and locate the faulty charging module. The storage unit synchronously records the operating status, fault information and historical fault data of each charging module. Attached Figure Description

[0028] Figure 1 This is a system block diagram of an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Charging port; 2. Circuit breaker; 3. Interactive component; 31. Display screen; 32. Input device. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0031] This application discloses a charging protection device for electric bicycles used in residential communities. (Refer to...) Figure 1 A charging protection device for electric vehicles in a residential community is provided, which includes an electric vehicle charging pile and an interactive component 3. The device includes a charging protection system and a receiving terminal. The charging protection system and the receiving terminal are connected. The charging protection system is installed in the electric vehicle charging pile, and the receiving terminal is installed in the interactive component 3.

[0032] Furthermore, a battery charging protection device for a residential community includes a charging socket and a circuit breaker 2. Both the charging socket and the circuit breaker 2 are installed on the battery charging pile, and the charging socket is electrically connected to the circuit breaker 2.

[0033] Correspondingly, the charging protection system includes several charging modules, several circuit breaker protection modules, a control module, and a detection module. The charging modules, circuit breaker protection modules, and detection modules are all connected to the control module. There is a one-to-one correspondence between the charging modules and the circuit breaker protection modules. The charging modules are installed in the charging port, and the circuit breaker protection modules are installed in the circuit breaker 2.

[0034] This demonstrates that the charging module in the charging port is responsible for the charging function of the electric vehicle. When the detection module detects an abnormality in the charging port, the control module immediately cuts off the circuit breaker 2 corresponding to the faulty charging port. The circuit breaker 2 cuts off the charging circuit of the charging port, while maintaining the normal power supply to other charging modules. This reduces the impact on the normal operation of other charging ports, reduces the risk of overall power outage caused by the failure of a single charging port, lowers safety hazards, and improves the convenience of life for residents in the community.

[0035] Specifically, the output end of the charging port is connected to the battery interface of the electric vehicle, and the input end is connected to the main circuit through the circuit breaker 2. In this embodiment, the circuit breaker 2 is an electromagnetic circuit breaker 2. The electromagnetic circuit breaker 2 has the advantage of environmental adaptability. The electric vehicle charging piles in the community are deployed in various environments, including indoor, outdoor, high temperature and low temperature. The electromagnetic circuit breaker 2 can usually maintain stable performance over a wide temperature range. In addition, the electromagnetic circuit breaker 2 has a setting that directly drives the mechanical tripping mechanism through leakage current, which reduces the need for auxiliary power supply and can still operate normally even if the line voltage is missing.

[0036] Furthermore, the detection module includes a current detection unit and a voltage sampling unit. Specifically, in this embodiment, the current detection unit uses a Hall sensor to achieve non-contact current measurement. The Hall sensor includes a Hall element and a signal processing circuit. When the charging current of the charging port passes through the Hall sensor, the Hall element generates a Hall voltage proportional to the current. After the Hall voltage is amplified and filtered by the signal processing circuit, it is output to the control module.

[0037] Meanwhile, the voltage sampling unit is implemented using a resistor voltage divider circuit, which consists of two resistors connected in series in the charging circuit. By measuring the voltage division value of these two resistors, the voltage of the charging circuit can be obtained. The voltage signal after voltage division is output to the control module after passing through a buffer circuit and a filter circuit.

[0038] It can be explained that the current detection unit can capture abnormal current fluctuations in the charging module during the charging process, such as short circuits and overloads, while the voltage sampling unit can identify abnormal voltages in the charging module, such as overvoltage and undervoltage. The collaborative work of the current detection unit and the voltage sampling unit improves the comprehensive coverage of possible electrical fault scenarios during the charging process of electric vehicles. The real-time transmission of the signals generated by the detection module to the control module enables the control module to promptly cut off the circuit breaker protection module corresponding to the charging module, reducing the overall power outage risk caused by the interference of the faulty charging module to the normal charging module, and preserving the normal power supply of other charging modules.

[0039] Meanwhile, the control module includes an analysis unit and a storage unit. The analysis unit is used to analyze the signals transmitted by the detection module, and the storage unit is used to record the operating status of each charging module and historical fault data.

[0040] Specifically, the analysis unit uses a microcontroller, which has a low cost. The microcontroller contains a central processing unit and an analog-to-digital converter. The current and voltage signals output by the detection module are converted by the analog-to-digital converter and then input to the central processing unit for processing. The central processing unit determines the operating status of the charging module, the charging module fault, and the location of the charging module fault according to the preset algorithm, and outputs control signals to the circuit breaker 2 protection unit.

[0041] Furthermore, the storage unit is implemented based on Flash memory. The Flash memory is connected to the microcontroller via an SPI interface and is used to store the charging module's operation logs, fault history, and maintenance records. The microcontroller can write the data that needs to be stored into the Flash memory through the interface and read it out for analysis when needed.

[0042] This demonstrates that the analysis unit can identify abnormal conditions such as short circuits, overloads, overvoltages, and undervoltages by analyzing the current and voltage signals transmitted by the detection module in real time, and can locate the faulty charging module. The storage unit records the operating status, fault information, and historical fault data of each charging module based on the analysis results of the analysis unit. The fault information includes the location and cause of the charging module fault, and the historical fault data includes the fault type, occurrence time, and duration.

[0043] On the other hand, the charging protection system also includes an alarm module, which includes a wireless communication unit and an alarm unit. The alarm unit is used to send a fault signal and trigger an alarm in the electric vehicle charging pile. The fault signal is sent to the receiving terminal through the wireless communication unit.

[0044] Specifically, the wireless communication unit is implemented using a Wi-Fi module. The Wi-Fi module is connected to the microcontroller via an SPI interface. The Wi-Fi module supports the MQTT protocol for data transmission. The microcontroller sends charging status and fault information to the Wi-Fi module through the interface. The Wi-Fi module encapsulates this information into MQTT messages and sends them to the receiving terminal.

[0045] Furthermore, the alarm unit uses a buzzer, which is electrically connected to the microcontroller. When the microcontroller detects a fault, it outputs a control signal to drive the buzzer to emit an audible and visual alarm.

[0046] This demonstrates that when a charging module malfunctions, the alarm unit can immediately trigger an alarm, with the buzzer emitting an audible and visual alarm. This alarm can be pushed to the receiving terminal in real time, allowing property staff to detect the problem promptly, reducing the need for on-site inspections. Simultaneously, the location of the fault can be determined, such as the specific charging pile number and charging port location, and historical fault records can be retrieved, reducing troubleshooting time and enabling rapid repair. For example, if a battery-powered vehicle charging pile malfunctions at night, the alarm can wake up on-duty personnel, who can then locate the faulty charging module through the receiving terminal and address the problem, shortening troubleshooting time and reducing fire risk.

[0047] Furthermore, the receiving terminal is configured as a community property management system, which is loaded onto the interactive component 3. The interactive component 3 includes a display screen 31 and an input device 32, which are electrically connected. The display screen 31 is used to display the real-time status of the charging port, and the input device is used to manually reset faults.

[0048] The display screen 31 is implemented using an LCD, which has the characteristics of low cost and character display. The LCD is connected to the microcontroller via a parallel port to display the charging status, current value, and voltage value of the charging port in real time, as well as the location of the faulty charging port. The microcontroller sends the data to be displayed to the LCD via the parallel port, and the LCD updates the display content according to the received data.

[0049] The input device 32 uses physical buttons, which are connected to the microcontroller via pull-up resistors. When a maintenance personnel presses a button, the button outputs a low-level signal to the microcontroller. After detecting the button signal, the microcontroller will perform corresponding operations, such as manually resetting the fault or querying historical records.

[0050] This demonstrates that the display screen 31 intuitively displays the real-time status of each charging port, which property staff can check at any time. When the microcontroller detects that a charging port has triggered the circuit breaker 2 due to a short circuit, it sends an MQTT message to the community property management system via the Wi-Fi module. Property staff can view the fault information and mark the specific location on the display screen 31 in real time, which facilitates quick problem location. The input device 32 allows maintenance personnel to automatically disconnect and then manually reset the fault, reducing the occurrence of long-term power outages caused by temporary false alarms or brief anomalies.

[0051] The implementation principle of a battery-powered vehicle charging protection device for residential communities according to an embodiment of this application is as follows:

[0052] The user inserts the battery interface of the electric vehicle into an empty charging port of the electric vehicle charging station. The charging port is electrically connected to the electromagnetic circuit breaker. The circuit breaker is initially closed, allowing current to flow.

[0053] After the control module is powered on, it loads historical fault data and configuration parameters. The detection module performs an initial test on the charging circuit to confirm that there are no short circuits or overvoltage abnormalities.

[0054] The microcontroller keeps the circuit breaker closed, the charging module starts to output current, the current flows through the circuit breaker to the charging port, and finally charges the electric vehicle battery. The LCD display updates the charging port status to "charging" and displays real-time charging information. The community property management system receives the charging start event through the MQTT protocol and records the charging pile ID and port number.

[0055] Meanwhile, the Hall sensor continuously monitors the charging current, the resistor voltage divider circuit collects the charging circuit voltage, and after being isolated by the buffer circuit, it is input to the microcontroller. The microcontroller reads the current signal and the voltage signal.

[0056] The microcontroller runs an algorithm to determine whether the current and voltage signal parameters exceed the threshold, and identifies short circuits, overloads, overvoltages, and undervoltages. When the microcontroller detects an anomaly, it immediately outputs a control signal to disconnect the corresponding circuit breaker.

[0057] The LCD displays the charging port status as "faulty". The community property management system receives an MQTT alarm, and the microcontroller writes the fault information into the Flash memory, including the fault type, fault information and the time of occurrence.

[0058] At the same time, the buzzer sounds an audible and visual alarm to alert property management personnel. The fault information is sent to the community property management system via the Wi-Fi module, including the charging fault alarm, charging pile number, charging port location, and fault type. The community property management system displays the fault information on its screen, making it easy to quickly locate the problem.

[0059] In the event of a prolonged power outage caused by a temporary false alarm or brief anomaly, maintenance personnel will manually reset the fault via physical buttons upon arrival at the site, restore the charging circuit, and the microcontroller will reassess the charging circuit status. Once it is confirmed that there are no abnormalities, recharging will be permitted.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A charging protection device for electric bicycles in a residential community, characterized in that, The system includes a charging protection system built into the electric vehicle charging station. The charging protection system comprises several charging modules, several circuit breaker modules, a detection module, a control module, and an alarm module. The charging module, the circuit breaker protection module, the detection module, and the alarm module are all connected to the control module. Each of the charging modules corresponds to a circuit breaker protection module, and each charging module is connected to the main circuit through its corresponding circuit breaker protection module. Each of the charging modules is equipped with a detection module, which is electrically connected to the circuit breaker protection module. The control module is used to control the circuit breaker protection module to disconnect the charging module from the main circuit and to send an alarm signal through the alarm module.

2. The electric vehicle charging protection device for a residential community according to claim 1, characterized in that, The detection module includes a current detection unit and a voltage sampling unit. The current detection unit is used to detect the charging current of the charging module, and the voltage sampling unit is used to detect the voltage state of the charging module. The signal generated by the detection module is transmitted to the control module.

3. The electric vehicle charging protection device for a residential community according to claim 1, characterized in that, The control module includes an analysis unit and a storage unit. The analysis unit is used to analyze the signals transmitted by the detection module, and the storage unit is used to record the operating status, fault information, and fault history data of each charging module.

4. A battery charging protection device for residential communities according to claim 1, characterized in that, It also includes a receiving terminal. The alarm module includes a wireless communication unit and an alarm unit. The alarm unit is used to trigger an alarm in the electric vehicle charging station. The wireless communication unit is used to send the data analyzed by the analysis unit, the data recorded by the storage unit, and the alarm triggered by the alarm unit to the receiving terminal.

5. A battery-powered vehicle charging protection device for a residential community according to claim 4, characterized in that, The receiving terminal is configured as a community property management system, the wireless communication unit is connected to the community property management system, and the community property management system is connected to the control module.

6. A battery charging protection device for residential communities according to claim 1, characterized in that, It includes a charging socket and a circuit breaker (2). The charging module is installed in the charging socket, and the circuit breaker protection module is installed in the circuit breaker (2). The charging socket is electrically connected to the circuit breaker (2).

7. A battery charging protection device for residential communities according to claim 1, characterized in that, It also includes an interactive component (3), on which the community property management system is loaded.

8. A battery charging protection device for residential communities according to claim 7, characterized in that, The interactive component (3) includes a display screen (31) and an input device (32), which are electrically connected. The display screen (31) is used to display the real-time status of the charging port, and the input device is used to manually reset faults.

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