Electric bicycle charging pile

Abstract

The invention relates to the field of electric bicycle charging equipment, and discloses an electric bicycle charging pile, which comprises a charging main body provided with a plurality of independent charging interfaces, and each interface can detect and identify the battery type and the battery state of a connected electric bicycle; the control module is connected with the charging interface and used for automatically adjusting charging voltage and current according to the detected battery type and state, and the control module can be dynamically switched between a constant-current charging mode and a constant-voltage charging mode based on the current electric quantity level and the battery voltage of the battery of the electric bicycle. Through the combination of the communication module and the control module, a user can remotely set the starting time and the ending time of charging, and can flexibly arrange the charging time according to actual demands, particularly, charging is carried out in a time period with a low electricity price, so that the charging cost is effectively reduced, meanwhile, overcharging is avoided through intelligent control, and the user experience is improved. And the service life of the battery is prolonged.

Description

Technical Field

[0001] The invention relates to the field of electric bicycle charging equipment, in particular to an electric bicycle charging pile. Background Art

[0002] With the widespread use of electric bicycles, the demand for charging electric bicycles has shown a significant growth trend. Electric bicycles have become one of the main means of transportation for short-distance travel in cities due to their convenience, environmental protection and economy. However, with the increase in the number of electric bicycles, charging problems have gradually exposed many shortcomings. At present, there are mainly two ways to charge electric bicycles on the market, namely home charging and public charging point charging. Both methods have serious limitations and safety hazards in practice.

[0003] For most users, home charging is a convenient option, but this method is also accompanied by a variety of potential safety risks. First of all, household power lines are generally not designed for long-term, high-power charging needs. The continuous charging of electric bicycles may cause wires to overload, increasing the risk of electrical fires. Especially in old residential areas, power lines are seriously aging and there are great electrical hazards. In addition, when users charge their electric bicycles at home, they often ignore the charging time, which may lead to overcharging, which will not only shorten the service life of the battery, but also may cause battery heating, fire and other safety problems. What's more serious is that since there is no supervision at night, the charging equipment may not be discovered in time when it fails, greatly increasing the probability of safety accidents such as fire.

[0004] In order to alleviate the risks brought by home charging, public charging facilities came into being. However, the layout of public charging facilities in most cities is still relatively scattered, and the number of charging points is far from meeting the growing demand for electric bicycle charging. When charging at public charging points, users often face problems such as insufficient charging ports and untimely equipment maintenance, which makes it difficult for users to find available charging ports during peak hours and leads to a poor charging experience. In addition, existing public charging facilities generally lack intelligent control functions, and users cannot flexibly choose the start and end time of charging, and cannot make full use of the low electricity prices at night for economical charging. This not only limits users from reasonably arranging charging periods according to actual needs, but may also cause users to occupy charging equipment for a long time, increasing the waste of public resources.

[0005] Existing public charging facilities also generally lack intelligent regulation functions with the grid load. During peak hours, a large number of electric bicycles are charged at the same time, which may increase the burden on the grid, causing grid overload and even causing power supply instability or power outages in local areas. At present, common charging equipment cannot adjust the charging power according to the real-time load of the grid, which means that when the grid load pressure is too large, high-power charging is still maintained, further exacerbating the instability of the grid. The lack of an intelligent power regulation mechanism not only poses a hidden danger to the safe operation of the grid, but also leads to low energy utilization efficiency and fails to achieve the goal of green energy saving.

[0006] In summary, the main problems faced by current electric bicycle charging technology include potential safety hazards of home charging, insufficient number of public charging facilities and lack of intelligent management, lack of grid load regulation function, etc. In order to solve these problems, an electric bicycle charging pile with intelligent control, remote management, safety protection and grid load regulation functions is urgently needed, which can effectively improve charging efficiency, ensure user safety, and alleviate the load pressure of the grid during peak hours. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an electric bicycle charging pile, which solves the problems of safety hazards, insufficient charging facilities, inability to flexibly control charging time periods, and lack of grid load regulation function in the existing electric bicycle charging process.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electric bicycle charging pile, comprising:

[0009] A charging main body, provided with a plurality of independent charging interfaces, each interface being capable of detecting and identifying the type and battery status of the connected electric bicycle battery;

[0010] A control module connected to the charging interface, used to automatically adjust the charging voltage and current according to the detected battery type and state, and the control module can dynamically switch between constant current charging and constant voltage charging modes based on the current power level and battery voltage of the electric bicycle battery;

[0011] The safety protection module includes overvoltage protection, overcurrent protection, leakage protection and temperature protection. It monitors the voltage, current and temperature during the charging process in real time. When an abnormal situation is detected, the safety protection module can immediately interrupt the charging process.

[0012] A communication module for data communication with the user's mobile terminal and the remote management platform. The communication module can also communicate with the power grid load management system to dynamically adjust the charging power;

[0013] The display module is connected to the control module and is used to display the real-time charging status, remaining battery power, estimated charging time and charging cost.

[0014] Preferably, the control module has a built-in intelligent control chip, which can select a constant current charging mode through a preset charging curve based on the battery capacity C (in Ah), and the constant current charging current I constant Satisfies the following formula:

[0015]

[0016] Among them, t charge Charging time set by the user.

[0017] Preferably, the control module is configured to charge the battery when the battery voltage reaches the charging cut-off voltage V cutoff When the charging current drops to the set trickle current I, the charging voltage is kept constant and the charging current is gradually reduced. trickle , until charging is completed.

[0018] Preferably, the safety protection module further includes a temperature sensor to monitor the internal temperature of the charging pile in real time. When the temperature exceeds a preset threshold, the system automatically reduces the charging power or suspends charging, and notifies the user and the management platform through the communication module.

[0019] Preferably, the overcurrent protection function of the safety protection module monitors the charging current, and when the charging current exceeds a set safety range, a power-off protection mechanism is immediately triggered to prevent damage to the battery or charging equipment.

[0020] Preferably, the communication module is connected through 4G, Wi-Fi and NB-IoT networks, and can upload the real-time data of the charging pile to a cloud management platform. The management platform can monitor the status of the charging pile in real time, remotely control and store historical data.

[0021] Preferably, the communication module can further interact with the power grid load management system to obtain the real-time load status of the power grid, and the control module can obtain the current value L of the power grid load based on the current value L of the power grid load. grid and the maximum value L max Calculate and adjust the charging power P adjusted , the formula is:

[0022]

[0023] Among them, P max is the maximum power output of the charging pile.

[0024] Preferably, the display module is an LED display screen, which can display the real-time charging voltage, current, charged amount, remaining charging time and charging cost, and display the battery health status of the electric bicycle.

[0025] Preferably, the control module can communicate with the user's mobile terminal through the communication module, allowing the user to set the charging time, monitor the charging status and receive charging completion or abnormality warning information through the mobile application.

[0026] Working principle: When the electric bicycle is connected to the charging pile, the system first automatically identifies the battery type and status through the control module, selects the appropriate charging mode (constant current, constant voltage or trickle current), and dynamically adjusts the charging current and voltage according to the real-time status of the battery. During the charging process, the safety protection module monitors the voltage, current and temperature in real time to prevent overvoltage, overcurrent, overheating and leakage. The communication module transmits the charging status to the remote management platform and the user APP through the network to achieve real-time monitoring and remote operation. The system also has a dynamic power allocation function for multiple vehicles to charge at the same time, and automatically reduces the power output when the grid load is large to reduce the pressure on the grid. After charging is completed, the device enters standby or energy-saving mode to reduce power consumption. In addition, users can make appointments for charging, monitor the charging process and pay fees through the APP, which improves the intelligence of the device and user experience.

[0027] The present invention provides an electric bicycle charging pile, which has the following beneficial effects:

[0028] 1. Through the combination of the communication module and the control module, the present invention allows users to remotely set the start and end time of charging. This enables users to flexibly arrange charging time according to actual needs, especially charging during periods with lower electricity prices, thereby effectively reducing charging costs. At the same time, intelligent control avoids overcharging and extends the service life of the battery.

[0029] 2. The present invention has the function of intelligently adjusting the charging power according to the grid load, and can automatically reduce the charging power when the grid load is high, reduce the pressure on the grid, and restore normal power output during the off-peak period. This dynamic adjustment mechanism not only realizes the rational use of energy, but also ensures the stable operation of the grid and reduces the impact of grid overload.

[0030] The present invention improves the user's charging experience through remote control and intelligent power regulation, while achieving energy conservation, emission reduction and grid load balance, and has significant economic and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the charging pile system of the present invention. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Please refer to the attached Figure 1 The present invention provides an electric bicycle charging pile, comprising:

[0034] 1. Charging pile body and installation

[0035] The main body of the charging pile includes multiple charging interfaces, each of which has a universal adapter socket to be compatible with the battery interfaces of different electric bicycles. A variety of sensors are embedded in the interface, including voltage, current detectors and temperature sensors, which can collect various status information of the connected battery in real time, such as the remaining battery power, voltage, current and temperature.

[0036] The charging pile adopts waterproof and dustproof design. The whole material is aluminum alloy, and the outer layer is covered with corrosion-resistant coating. It has IP65 protection level to ensure long-term stable operation in outdoor environment. The charging interface adopts modular design. Each charging interface can operate independently and is equipped with emergency power-off switch. When the user or management system detects an abnormality, the power supply of all interfaces can be quickly cut off.

[0037] Installation process:

[0038] Site selection and installation preparation: Charging piles are installed in public places such as residential areas, parking lots, and shopping malls. Before installation, it is necessary to evaluate the power supply and user needs of the place. Ensure that the power supply access is stable and can support multiple interfaces working simultaneously.

[0039] Foundation fixing: The charging pile is fixed to the ground or wall by bolts, and a pre-buried steel bracket is used during installation to ensure the stability of the charging pile under high load conditions. The foundation part needs to be waterproofed to avoid electrical safety problems caused by rainwater accumulation.

[0040] Grounding protection: Electrical safety is an important step during installation. Each charging station is well connected to the ground through a grounding wire, and the grounding resistance is kept below 4 ohms. The grounding protection system includes a residual current device (RCD). When leakage or abnormal current occurs, the RCD can disconnect the power supply within milliseconds to protect user safety.

[0041] 2. Intelligent management system of control module

[0042] The control module is the core part of the charging pile and is responsible for the intelligent management and control of the entire charging process. The control module dynamically adjusts the charging current and voltage by automatically detecting the connected battery type (lithium battery, lead-acid battery, etc.) and the battery status (voltage, temperature, remaining power).

[0043] Charging mode selection:

[0044] Constant current charging mode: When the battery power is low, the system will start the constant current charging mode. At this time, the control module will charge the battery according to the battery capacity C and the set charging time t charge Calculate the appropriate constant current I constant , to ensure that the battery can be charged quickly. The calculation formula is as follows:

[0045]

[0046] For example, for a battery with a capacity of 30Ah, if the charging time is set to 6 hours, the system will output a current of 5A.

[0047] Constant voltage charging mode: When the battery voltage gradually increases and approaches the preset charging cut-off voltage V cutoff The system automatically switches to constant voltage charging mode. In this mode, the charging voltage remains constant while the current gradually decreases, ensuring that the battery will not be damaged by overcharging when it is close to full charge.

[0048] Trickle charge mode: When the battery is nearly fully charged, the control module will further reduce the charging current to trickle mode. At this time, the charging current is very small (usually around 0.1A), ensuring that the battery will not overheat or shorten the battery life in the final charging stage.

[0049] Power Regulation:

[0050] The control module also has the function of dynamically adjusting the charging power, especially when the grid load is high, by reducing the charging power to relieve the pressure on the grid. The control module interacts with the grid load management system and adjusts the charging power according to the current grid load L grid and maximum load capacity L max Dynamically adjust the charging power. The calculation formula is as follows:

[0051]

[0052] The algorithm ensures grid stability during peak hours and maximizes charging efficiency during off-peak hours.

[0053] 3. Multiple protection mechanisms of security protection module

[0054] The safety protection module is responsible for real-time monitoring of voltage, current, temperature and other parameters during the charging process, and provides comprehensive safety protection measures. Specifically, it includes the following functions:

[0055] Overvoltage protection:

[0056] When the charging voltage exceeds the preset threshold (such as 48V), the system will immediately cut off the power supply to prevent the battery from internal electrolyte decomposition or other damage due to overvoltage.

[0057] Overcurrent protection:

[0058] The control module monitors the charging current in real time to ensure that it always operates within the safe range of the battery. When the current exceeds the set maximum value (such as 10A), the system will trigger the overcurrent protection mechanism, immediately stop charging, and send an alarm to the management platform.

[0059] Temperature protection:

[0060] Temperature sensors are distributed around the charging port and battery to monitor the ambient temperature and device temperature in real time. When the temperature exceeds 70°C, the control module will reduce the charging power or suspend charging to ensure the safe operation of the device. If the temperature continues to rise, the system will issue a high temperature alarm and upload fault information to the management platform.

[0061] Leakage protection:

[0062] The leakage protection module monitors the current flow in real time to detect whether there is leakage. When abnormal current leakage is detected, the system will immediately disconnect the power supply and send the fault information to the management platform through the communication module, and prompt the user to take measures.

[0063] 4. Communication module and remote monitoring

[0064] The communication module supports multiple network connection methods, including 4G, Wi-Fi and NB-IoT, and can communicate with the remote management platform and the user's mobile device in two directions. The communication module can not only transmit the real-time status data of the charging pile, but also remotely receive control instructions sent by the management platform or the user.

[0065] Real-time data monitoring:

[0066] Through the communication module, users can view the real-time data of the charging pile through the mobile phone APP or management platform, including the current charging voltage, current, power, remaining charging time and other information.

[0067] The management platform can remotely manage the charging piles through the communication module, including power on / off control, charging mode selection, power adjustment and other functions, ensuring that the charging piles are always in the best working condition.

[0068] Grid load management:

[0069] The communication module is connected to the power grid load management system to obtain the load information of the power grid in real time and feed this information back to the control module. The control module adjusts the charging power according to the load status of the power grid to avoid additional burden on the power grid during peak hours.

[0070] Fault alarm and notification:

[0071] When a charging pile fails or is abnormal (such as overcurrent, overvoltage or overtemperature), the communication module will immediately send a fault alarm message to the management platform. Users can receive fault notifications through the mobile phone APP and handle them in a timely manner.

[0072] 5. Display module and user interaction interface

[0073] The display module displays key information such as charging status, remaining time, charged amount, and charging cost in real time through the LED display. Users can check the current charging progress through the display and select different charging modes according to their needs.

[0074] User Action:

[0075] Users can set the charging time and select the charging mode (such as fast charging or energy-saving charging) through the touch display or mobile APP, and can adjust the charging power or schedule as needed. For example, users can choose to charge during the off-peak period of the power grid to reduce charging costs.

[0076] Fault information display:

[0077] When an abnormality occurs during charging, the display module will immediately inform the user of the fault type (such as overcurrent, overvoltage or abnormal temperature) through a warning light or text. At the same time, the system will send a notification to the user's mobile phone APP to remind the user to take timely action or contact maintenance personnel.

[0078] 6. Data storage and big data analysis

[0079] The communication module will upload detailed data of each charging cycle to the cloud server. The management platform will analyze this data through big data analysis technology, generate equipment usage reports, and conduct predictive analysis on the health status of the charging pile.

[0080] Intelligent Operation and Maintenance:

[0081] The management platform can predict the maintenance needs of charging piles based on historical data, arrange equipment maintenance in advance, and prevent equipment failures. At the same time, the management platform can optimize the deployment location of charging piles and improve overall operational efficiency through data such as equipment usage frequency and charging efficiency.

[0082] Embodiment 1:

[0083] In residential communities, parking lots are the main places for residents to park and charge their cars on a daily basis. With the popularity of electric bicycles, residents' demand for charging is gradually increasing, especially after getting home from get off work in the evening, when charging demand is often concentrated in the same period. The charging piles in the community parking lot need to be able to charge multiple vehicles at the same time and be able to automatically adjust the charging power to ensure the stable operation of electrical equipment. At the same time, the system should have safety protection measures and remote management functions to ensure the safety of charging equipment.

[0084] Charging pile implementation plan

[0085] 1. Equipment Installation

[0086] In this embodiment, the charging pile is installed in a parking lot in a residential area. The parking lot is an open-air environment, so the charging pile body needs to have good weather resistance and protection capabilities.

[0087] Materials and Construction:

[0088] The charging pile body is made of aluminum alloy, and the exterior is coated with anti-corrosion and waterproof materials, which can resist rain, dust and other environmental influences, and the protection level is IP65. The interior design of the body is modular structure, which is convenient for future maintenance and expansion.

[0089] Each charging station is equipped with 4 independent charging ports, each with a dedicated socket that can be adapted to different types of electric bicycle batteries. The socket is embedded with an automatic identification system that can detect the type of battery (such as lithium battery, lead-acid battery), its remaining power and battery voltage.

[0090] Installation steps:

[0091] Site selection: In the parking lot, choose an area close to the power access point for installation to reduce cable laying costs and improve power transmission efficiency. Charging piles should be installed away from large trees and low-lying areas to avoid rainwater accumulation.

[0092] Fixing: The charging pile is fixed through a concrete foundation, and stainless steel bolts are embedded in the foundation to ensure the stability of the equipment. The ground is waterproofed to prevent water from flowing into the bottom of the equipment.

[0093] Electrical access: The charging pile is connected to the community's power system through a 10 square millimeter copper core cable and connected to three-phase AC power to ensure the power requirements when multiple charging ports work simultaneously. The grounding wire uses a 16 square millimeter copper core wire, and the grounding resistance is kept below 4 ohms, which meets electrical safety standards.

[0094] 2. Charging process management

[0095] The charging pile of this embodiment is equipped with an intelligent control module, which can automatically adjust the charging mode according to the battery status of the electric bicycle and has the ability to charge multiple bicycles at the same time.

[0096] Control module functions:

[0097] Automatic detection and identification: Each charging port is embedded with a battery detection module. After connecting the battery, the system can automatically identify the battery type (such as lithium battery, lead-acid battery) and battery status (battery voltage, remaining power, etc.). According to the detected battery status, the system will automatically select the best charging mode, including constant current charging, constant voltage charging and trickle charging.

[0098] Constant current charging mode: When the battery power is low, the system will start the constant current charging mode. At this time, the control module will charge the battery according to the battery capacity C and the set charging time t charge Calculate the appropriate constant current I constant , to ensure that the battery can be charged quickly. The calculation formula is as follows:

[0099]

[0100] For example, for a battery with a capacity of 20Ah, if the charging time is set to 5 hours, the charging current is 4A. In this mode, the battery can be quickly charged in a short time.

[0101] Constant voltage charging mode: When the battery voltage is close to the maximum charging voltage V cutoff (such as 48V), the system will automatically switch to constant voltage charging mode, keep the voltage unchanged, and gradually reduce the current to avoid overcharging the battery

[0102] Trickle charge mode: When the battery charge is close to saturation, the system will enter the trickle charge mode, and the current is maintained at about 0.1A to prevent overcharging and prolong battery life.

[0103] Charging multiple vehicles at the same time:

[0104] The control module can monitor the operation of multiple charging ports and automatically allocate charging power according to the power status of each battery. For example, when an electric bicycle battery is in the early stage of charging, the control module will prioritize it to allocate a higher charging power; when the battery enters trickle charging, the power output of the port is reduced and the charging power of other vehicles is increased. This dynamic allocation mechanism ensures that multiple vehicles can be charged efficiently at the same time.

[0105] 3. Security protection mechanism

[0106] To ensure charging safety, the charging pile is equipped with multiple safety protection mechanisms to monitor various electrical parameters in real time.

[0107] Safety protection features:

[0108] Overvoltage protection: When it is detected that the battery voltage exceeds the safety threshold (such as the battery voltage exceeds 48V), the system will immediately stop charging and send an alarm message to the management platform.

[0109] Overcurrent protection: The control module monitors the charging current in real time through the current sensor. When the charging current exceeds the set safety range (such as 10A), the system will trigger the overcurrent protection and cut off the power supply.

[0110] Temperature protection: A temperature sensor is installed in each charging port to monitor the device temperature in real time. When the temperature exceeds the set threshold (such as 70°C), the system will automatically reduce the charging power or suspend charging to prevent the device from overheating.

[0111] Leakage protection: The system has a leakage detection function. When abnormal current leakage occurs, the system will immediately cut off the power supply to prevent electric shock accidents.

[0112] 4. Remote monitoring and management

[0113] The charging pile in this embodiment is equipped with a communication module, which can interact with the property management platform through 4G, Wi-Fi or NB-IoT network.

[0114] Remote management capabilities:

[0115] Property managers can view the operating status of charging piles in real time through the management platform, including detailed information such as charging power, voltage, current, remaining charging time, etc. At the same time, the system also has a remote control function, and managers can control the charging piles on and off, adjust the charging mode, and so on through the platform.

[0116] When the system detects a fault (such as overcurrent, overvoltage, leakage, etc.), the communication module will immediately send an alarm message to the management platform, prompting the management personnel to deal with the fault in time to ensure the safe operation of the charging pile.

[0117] User APP functions:

[0118] Residents can check the charging status through the mobile phone APP and know the remaining charging time and cost in real time. In addition, users can remotely reserve charging time to ensure smooth charging during peak hours. After charging is completed, the system will automatically send a notification to remind users to unplug the charging plug.

[0119] 5. Display module and user interaction

[0120] In this embodiment, the display module of the charging pile is a high-brightness LED display screen, which can clearly display information such as charging status and remaining time. Users can view the charging progress in real time through the display screen and adjust the charging time or mode as needed.

[0121] Display features:

[0122] The display will show the current voltage, current, charging time, charged amount and remaining time according to the real-time charging status. Users can select different display modes and set charging parameters through the touch screen.

[0123] Through detailed scenario analysis and technical description, the electric bicycle charging pile of this embodiment demonstrates its high efficiency, safety and intelligence in the application of residential areas, ensuring that the equipment can operate stably in multi-user, high-load usage scenarios.

[0124] Embodiment 2:

[0125] In the parking lots of large shopping malls, users usually park their electric bicycles in the parking area outside the mall and use the time to quickly charge the electric bicycles during shopping. Due to the short parking time, users' charging needs are focused on fast charging, and they also hope that the charging pile can quickly switch to standby mode after charging is completed to save energy. The charging pile should also have a payment system to facilitate users to pay through mobile devices.

[0126] Charging pile implementation plan

[0127] 1. Equipment Installation

[0128] In this embodiment, the charging pile is installed in the open-air parking lot of the shopping mall, which is convenient to use and meets the charging needs of a large number of short-stay users. The equipment has a simple appearance and beautiful design, which conforms to the overall image of the shopping mall.

[0129] Materials and Structure:

[0130] The main body of the charging pile is made of high-strength aluminum alloy, which is corrosion-resistant and waterproof. It can adapt to temperature changes, rain and dust in long-term outdoor environments, and its protection level is IP66. The surface of the shell is coated with an anti-ultraviolet coating to avoid fading or aging due to long-term exposure to sunlight.

[0131] Each charging pile is equipped with 4 fast charging ports, each of which can automatically identify the battery type (lithium battery, lead-acid battery, etc.) of different models of electric bicycles and select the appropriate charging mode according to the battery status.

[0132] Installation steps:

[0133] Site selection: Charging piles are installed in a prominent location in the mall parking lot to facilitate users to quickly find charging facilities. The installation site needs to be close to the mall's power access point to ensure the stability of power supply and reduce the length of power supply cables.

[0134] Basic installation: The charging pile is fixed to the ground through a pre-buried steel bracket to ensure that the equipment is stable and durable under high-frequency use. To prevent water from entering the equipment, a drainage design is set up on the ground to prevent rainwater from eroding the equipment foundation.

[0135] 2. Fast charging management

[0136] Users in shopping mall parking lots have a shorter charging time, so the charging piles need to have high-power fast charging capabilities so that users can charge enough power for the electric bicycle batteries in a short time.

[0137] Control module functions:

[0138] Fast charging mode: The charging pile of this embodiment is equipped with a high-power charging module to support high-current fast charging. When the electric bicycle is connected to the charging port, the system will detect the remaining power of the battery and select the fast charging mode. In this mode, the charging current I fast Can go up to 10A to maximize charging efficiency.

[0139] Automatically switch charging mode: In fast charging mode, the control module dynamically adjusts the current according to the battery charging status. When the battery voltage approaches the preset charging cut-off voltage V cutoff The system will automatically switch to constant voltage charging mode, keeping the voltage unchanged and gradually reducing the current to ensure that the battery will not be damaged due to overcharging.

[0140] Charging time optimization:

[0141] The control module can automatically calculate the remaining charging time based on the battery capacity and current status, ensuring that users can complete charging in a short time. For example, for a 20Ah battery, about 80% of the power can be charged in 30 minutes in fast charging mode, meeting the user's short-term charging needs.

[0142] 3. Automatic standby and energy saving mode

[0143] To save energy, the charging station will automatically switch to standby mode and enter low-power operation after charging is completed.

[0144] Standby mode switch:

[0145] In this embodiment, the charging pile has an automatic standby function. When the system detects that the user's electric bicycle battery is fully charged or reaches the preset charging time, the system will automatically stop charging, cut off the power supply, and enter the standby state. At this time, the power consumption of the charging pile will be reduced to a minimum, and only the basic monitoring and communication functions will be kept in standby.

[0146] Energy-saving function: During off-peak hours or when there is no vehicle access, the system automatically enters energy-saving mode, shuts down unnecessary functional modules, and only retains the communication module and detection module so that it can resume work immediately when a new user is detected.

[0147] 4. Payment system and user interaction

[0148] For the convenience of users, the charging piles are integrated with an online payment system, allowing users to pay for charging fees through mobile devices.

[0149] Payment system features:

[0150] Mobile payment: After connecting to the charging pile, users can connect to the payment system of the charging pile by scanning the code or using NFC technology. The system supports multiple payment methods, including mainstream payment methods such as WeChat Pay and Alipay. Users can view real-time charging fees on the mobile phone APP and make online payments.

[0151] Automatic settlement: After charging is completed, the system will automatically calculate the total cost and generate a bill, and the user can confirm and pay directly on the phone. After the payment is completed, the system will send a charging completion notification to the user via SMS or APP push.

[0152] User APP functions:

[0153] Users can monitor the charging status in real time through the mobile phone APP, including detailed information such as current charging voltage, current, charged amount, remaining time, etc. At the same time, users can preset the charging time and fee limit in the APP, and the system will automatically stop charging and notify the user according to the user settings.

[0154] 5. Safety protection and troubleshooting

[0155] In this embodiment, the charging pile is equipped with a variety of safety protection mechanisms to ensure safety during the charging process and avoid danger caused by equipment failure or user misoperation.

[0156] Safety protection features:

[0157] Overvoltage protection: When the charging voltage exceeds the maximum safety threshold of the battery (such as 48V), the system will immediately stop charging to prevent the battery from being damaged due to overvoltage.

[0158] Overcurrent protection: During charging, when the current exceeds the safe range (such as 10A), the system will trigger overcurrent protection and cut off the power supply to prevent the battery or charging device from overloading.

[0159] Temperature protection: Each charging port is embedded with a temperature sensor to monitor the temperature of the charging port and the battery in real time. When the temperature exceeds 70°C, the system will automatically reduce the charging power or suspend charging, and start the cooling fan to dissipate heat.

[0160] Leakage protection: The system monitors the current flow in real time through the leakage detection module. Once abnormal current leakage is detected, the system will immediately disconnect the power supply and send an alarm to the user and the management platform.

[0161] Fault handling and alarm:

[0162] The communication module of the charging pile can send alarm information to users and the mall management platform in a timely manner when a fault occurs. Users can view the specific cause of the fault through the mobile phone APP and handle it according to the prompts. The mall's operation and maintenance personnel can remotely monitor the operating status of the equipment through the management platform, handle equipment failures in a timely manner, and ensure the safe operation of the charging pile.

[0163] 6.Data upload and big data analysis

[0164] In this embodiment, the communication module of the charging pile can upload detailed data of each charging (such as charging start time, end time, battery voltage, current, cost, etc.) to the cloud server for shopping mall managers to perform data analysis.

[0165] Data analysis capabilities:

[0166] The mall management platform can use big data analysis technology to analyze the usage frequency, failure rate, equipment health status, etc. of charging piles. Based on the reports generated by the data, managers can arrange regular maintenance of equipment in advance and optimize the deployment of charging piles according to user charging needs.

[0167] The system can also predict future charging needs by analyzing historical data, helping shopping malls plan the location and number of new charging piles to improve the utilization rate of charging facilities.

[0168] Embodiment three:

[0169] Near bus stops or subway stations, many commuters use electric bicycles as a connection tool, parking their electric bicycles in the parking area of ​​the station and then taking public transportation to continue their journey. These vehicles usually need to be parked for a long time, and users want to charge them while they are away to ensure that the electric bicycles are fully charged when they return. Due to the large parking demand at the station, the charging piles need to support intelligent scheduling functions to avoid the charging piles being occupied for too long and affecting other users. At the same time, the system should also have appointment charging, remote monitoring and anti-abuse functions to ensure the orderly and efficient use of charging piles.

[0170] Charging pile implementation plan

[0171] 1. Equipment Installation

[0172] In this embodiment, the charging pile is installed in a dedicated electric bicycle parking area at a public transportation station. The equipment has the ability to work for a long time and can adapt to high-frequency use needs around the clock.

[0173] Materials and Structure:

[0174] The main body of the charging pile is made of high-strength stainless steel, and the outer layer is coated with anti-corrosion, anti-rust, and anti-ultraviolet coatings, which can work for a long time in harsh outdoor environments. The equipment has an IP67 protection level, which can prevent rain and dust from intruding. The heat dissipation design of the charging pile takes into account the problem of heat accumulation after long-term use, and the built-in fan and heat dissipation holes ensure stable operation of the system.

[0175] Each charging pile provides 6 charging ports, each of which is equipped with an automatic identification function that can identify the type of battery (such as lithium battery or lead-acid battery) and dynamically adjust the charging parameters according to the battery status (such as battery voltage, remaining power, etc.).

[0176] Installation steps:

[0177] Site selection: Charging piles are installed in the parking area of ​​the bus station near the entrance and exit to facilitate users to park and pick up their vehicles. The power access point of the station must have a stable power supply to ensure that it can support multiple vehicles charging at the same time.

[0178] Foundation installation: The charging pile is fixed with a concrete foundation and pre-buried steel bolts underground to enhance the stability and shock resistance of the equipment. Drainage ditches are set around the equipment to prevent rainwater accumulation.

[0179] Power access: The charging pile is connected to the three-phase AC system to ensure stable power supply during high-load operation. To ensure user safety, each charging pile is equipped with an independent leakage protection switch to prevent safety accidents caused by accidental short circuit or leakage.

[0180] 2. Charging process management

[0181] In this embodiment, the charging pile is equipped with an intelligent scheduling and reservation system, allowing users to make advance reservations for charging through a mobile phone APP. The system can automatically schedule the use of the charging pile according to the reservation situation.

[0182] Control module functions:

[0183] Smart scheduling and reservation: Users can reserve the use time of the charging pile through the mobile phone APP to ensure that the charging pile will not be occupied for a long time. The reservation information will be synchronized to the control module, which will arrange the charging order of the vehicle according to the reservation situation and automatically start charging after the vehicle is connected. If the reserved vehicle is still not connected after the scheduled time, the system will release the charging port for other users.

[0184] Charging process control: The control module can automatically detect the battery status and select the appropriate charging mode. In the initial charging stage, the system will charge quickly in constant current mode to ensure that the electric bicycle can obtain a high amount of power in a short time. When the battery voltage is close to the preset charging cut-off voltage V cutoff When the battery is overcharged, the system will switch to constant voltage mode to avoid overcharging the battery.

[0185] Anti-abuse features:

[0186] Timeout protection: To prevent the charging pile from being occupied for a long time, the system has set up a timeout protection mechanism. The maximum charging time reserved by the user is 12 hours. After this time, the system will automatically power off and send a notification to the user's mobile phone APP to prompt the user to pick up the car. If the vehicle is not taken away for more than 24 hours, the system will issue an alarm message to notify the management staff to deal with it in time.

[0187] Invalid occupancy detection: If it is detected that a vehicle is connected but charging has not started, the system will automatically disconnect the interface after 5 minutes and prompt the user to confirm the charging operation again to avoid invalid occupation of the charging pile.

[0188] 3. Safety protection and troubleshooting

[0189] The charging pile of this embodiment has a comprehensive safety protection mechanism to ensure that no accidents or safety incidents will occur during the charging process.

[0190] Safety protection features:

[0191] Overvoltage protection: The system will monitor the charging voltage in real time. When the voltage exceeds the safe upper limit of the battery (such as 48V), the system will immediately stop charging to prevent battery damage.

[0192] Overcurrent protection: Each charging port has a built-in current sensor. When the charging current exceeds the set maximum value (such as 10A), the system will immediately disconnect the power supply to prevent line overload or battery damage.

[0193] Temperature protection: The charging port and the device are equipped with temperature sensors to monitor the temperature changes of the device and battery. When the temperature exceeds 70°C, the system will automatically reduce the charging power or suspend charging until the temperature returns to normal.

[0194] Leakage protection: The charging pile is equipped with a leakage detection module. Once leakage is detected, the system will quickly cut off the power and send a warning to the user through the display screen and mobile phone APP. At the same time, the system will also send a fault report to the management platform to prompt the management staff to handle it.

[0195] Fault handling and alarm:

[0196] When a charging pile fails (such as overvoltage, overcurrent or abnormal temperature), the system will immediately stop charging and send an alarm message to the user and the management platform. Users can view the fault details through the mobile phone APP, and managers can follow up the equipment status in real time through the remote monitoring platform to ensure timely maintenance of the charging pile and protect user safety.

[0197] 4. Remote monitoring and management

[0198] The charging pile in this embodiment is equipped with a communication module, which can be connected to the remote management platform and the user's mobile phone APP in real time. The communication module supports multiple network protocols such as 4G, Wi-Fi and NB-IoT to ensure stable transmission of charging pile data.

[0199] Remote monitoring function:

[0200] User monitoring and operation: Users can monitor the charging status in real time through the mobile phone APP, including charging voltage, current, remaining time and other information. Users can also use the APP to schedule the charging time, remotely start or stop charging, and set the upper limit of the charging time.

[0201] Management platform monitoring: The management platform can monitor the operating status of all charging piles in real time, including current usage, charging power, current, voltage and other data. The platform can generate usage reports of charging piles to help administrators understand the operating efficiency and health of the equipment and arrange repairs and maintenance in a timely manner.

[0202] Reservation system and intelligent scheduling:

[0203] The system intelligently schedules the order of use of charging piles based on the user's reservation information, and reasonably allocates charging resources according to the charging needs of different vehicles. The usage and reservation information of the charging piles will be synchronized to the management platform, and the administrator can optimize the use strategy of the charging piles based on the data to avoid waste of resources.

[0204] 5. Display module and user interaction

[0205] In this embodiment, the charging pile is equipped with an LED display module, which can display the charging status, remaining time and fault information in real time, and the user can interact with the device through the display screen or mobile phone APP.

[0206] Display features:

[0207] The display screen shows real-time information such as current charging voltage, current, remaining time, charged amount, current fee, etc. Users can set charging time and schedule charging time through the touch screen or APP.

[0208] When a charging pile fails, the display screen will inform the user of the fault type through text and warning lights, and suggest measures for the user to take. At the same time, the system will send a detailed fault report to the user through the mobile phone APP.

[0209] This embodiment demonstrates the specific application of electric bicycle charging piles in public transportation stations. The charging piles have intelligent scheduling, reservation functions and anti-abuse mechanisms, which can provide users with efficient and convenient charging services. At the same time, remote monitoring and safety protection functions are used to ensure the safe operation of charging equipment.

[0210] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric bicycle charging station, characterized in that: include: A charging main body, provided with a plurality of independent charging interfaces, each interface being capable of detecting and identifying the type and battery status of the connected electric bicycle battery; A control module connected to the charging interface, used to automatically adjust the charging voltage and current according to the detected battery type and state, and the control module can dynamically switch between constant current charging and constant voltage charging modes based on the current power level and battery voltage of the electric bicycle battery; The safety protection module includes overvoltage protection, overcurrent protection, leakage protection and temperature protection. It monitors the voltage, current and temperature during the charging process in real time. When an abnormal situation is detected, the safety protection module can immediately interrupt the charging process. A communication module for data communication with the user's mobile terminal and the remote management platform. The communication module can also communicate with the power grid load management system to dynamically adjust the charging power; The display module is connected to the control module and is used to display the real-time charging status, remaining battery power, estimated charging time and charging cost.

2. An electric bicycle charging station according to claim 1, characterized in that: The control module has a built-in intelligent control chip, which can select a constant current charging mode based on a preset charging curve based on the battery capacity C (in Ah). The constant current charging current I constant Satisfies the following formula: Among them, t charge Charging time set by the user.

3. The electric bicycle charging station according to claim 1, characterized in that: The control module is activated when the battery voltage reaches the charging cut-off voltage V cutoff When the charging current drops to the set trickle current I, the charging voltage is kept constant and the charging current is gradually reduced. trickle , until charging is completed.

4. The electric bicycle charging station according to claim 1, characterized in that: The safety protection module further includes a temperature sensor to monitor the internal temperature of the charging pile in real time. When the temperature exceeds a preset threshold, the system automatically reduces the charging power or suspends charging, and notifies the user and the management platform through the communication module.

5. The electric bicycle charging station according to claim 4, characterized in that: The overcurrent protection function of the safety protection module monitors the charging current. When the charging current exceeds the set safety range, the power-off protection mechanism is immediately triggered to prevent damage to the battery or charging equipment.

6. The electric bicycle charging station according to claim 1, characterized in that: The communication module can upload the real-time data of the charging pile to the cloud management platform through 4G, Wi-Fi and NB-IoT network connection. The management platform can monitor the status of the charging pile in real time, remotely control and store historical data.

7. The electric bicycle charging station according to claim 1, characterized in that: The communication module can further interact with the power grid load management system to obtain the real-time load status of the power grid. The control module is based on the current value L of the power grid load. grid and the maximum value L max Calculate and adjust the charging power P adjusted , the formula is: Among them, P max is the maximum power output of the charging pile.

8. The electric bicycle charging station according to claim 1, characterized in that: The display module is an LED display screen that can display the real-time charging voltage, current, charged amount, remaining charging time and charging fee, and also display the battery health status of the electric bicycle.

9. The electric bicycle charging station according to claim 1, characterized in that: The control module can communicate with the user's mobile terminal through the communication module, allowing the user to set the charging time, monitor the charging status and receive charging completion or abnormality warning information through the mobile application.

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