Charging device and charging system

Abstract

The utility model discloses a charging device and a charging system, and relates to the technical field of energy storage equipment charging, the charging device has a plurality of charging modes, and the device comprises a man-machine interaction assembly which outputs a corresponding charging mode selection signal and a corresponding charging parameter adjusting signal based on the operation of a user; the rectifying module is used for converting alternating current of an external power supply into direct current and adjusting the direct current into corresponding current value and voltage value so as to charge the energy storage device; the power management system controls the rectifier module to output corresponding current values and voltage values in various charging modes to charge the energy storage device; according to the charging device, the electric quantity information of the energy storage device is detected, and the multimedia signal is output to the man-machine interaction assembly, so that a user can check the charging condition through the man-machine interaction assembly, and therefore, the charging device can effectively improve the charging accuracy, the user can adjust the output voltage and current and the charging mode by himself, and the adaptability of the charging device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging of energy storage devices, and particularly relates to a charging device and a charging system. Background Art

[0002] At present, the charging adaptability of charging devices on the market is not high. Often, because the output voltage value or current value cannot be adjusted by the user himself, and the accuracy of the output voltage or current cannot be controlled within the specified range, the voltage and current fluctuate up and down during the charging process, resulting in the inability to meet the target voltage or charging process desired by the customer, and the battery cannot be effectively fully charged. Most batteries on the market cannot be applied, and the needs of energy storage devices (such as battery packs) cannot be truly met. Therefore, how to provide a charging device with accurate charging and capable of adjusting the output voltage and current by the user has become an urgent problem in this field. Summary of the Utility Model

[0003] The main object of the utility model is to propose a charging device and a charging system, aiming to solve the problems of low charging accuracy of the charging device and low charging adaptability of the device caused by the inability to meet the target voltage or charging process desired by the customer.

[0004] To achieve the above object, the charging device proposed by the utility model has a constant voltage and current limiting charging mode, a constant current charging mode, and an equalizing charging mode. The device includes:

[0005] A human-computer interaction component, configured to output a corresponding charging mode selection signal and a charging parameter adjustment signal based on the user's operation;

[0006] A rectification module, the power input end of the rectification module is electrically connected to an external power supply, and the power output end of the rectification module is electrically connected to an external electrical device, configured to convert the alternating current of the external power supply into direct current, and after adjusting the direct current into a corresponding current value and voltage value, output it to the energy storage device for the energy storage device to charge;

[0007] A power management system, the power management system is electrically connected to the rectification module, and the power management system is communicatively connected to the energy storage device. The power management system is configured to control the rectification module to charge the energy storage device in one or more combinations of constant voltage and current limiting, constant current, and equalizing manners according to the received charging mode selection signal; the power management system is further configured to detect the power information of the energy storage device, and output a multimedia signal to the human-computer interaction component for the user to view the charging situation through the human-computer interaction component. The power management system is further configured to control the rectification module to output a corresponding current value and voltage value according to the received charging parameter adjustment signal.

[0008] In one embodiment, the charging device further includes:

[0009] A voltage conversion component, the power input end of the voltage conversion component is electrically connected to the external power supply, and the power output end of the voltage conversion component is electrically connected to the power input end of the power management system, for converting the alternating current of the external power supply into corresponding direct current for use by the power management system.

[0010] In one embodiment, the above-mentioned charging device further includes:

[0011] A housing, the housing has an installation opening, and the human-computer interaction component is installed in the installation opening;

[0012] A circuit board, which is arranged inside the housing.

[0013] In one embodiment, the housing is further provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with each other to form an air duct;

[0014] A fan, the fan is arranged inside the housing and is arranged in the air duct.

[0015] In one embodiment, the charging device further includes:

[0016] A power input switch component, the power input switch component is electrically connected to the external power supply, and the power input switch component is respectively electrically connected to the power input end of the rectification module and the power input end of the voltage conversion component; the power input switch component is used for the user to control the connection or disconnection of the line between the external power supply and the rectification module and the voltage conversion component;

[0017] A power output switch component, the power output switch component is electrically connected to the power output port of the rectification module, the power output switch component is electrically connected to the power input end of the energy storage device, and the controlled end of the power output switch component is electrically connected to the control end of the power management system; the power output switch component is used for the user to control the closing or disconnection of the line conduction between the rectification module and the energy storage device, and is also used for cutting off the line conduction between the rectification module and the energy storage device when the power management system detects abnormal power information.

[0018] In one embodiment, the power output switch component includes:

[0019] An output main switch, the output main switch is electrically connected to the power output end of the rectification module, and the output main switch is electrically connected to the power input end of the energy storage device, for controlling the closing or disconnection of the line conduction between the rectification module and the energy storage device;

[0020] A shunt trip, the shunt trip is electrically connected to the output main switch, and the shunt trip is electrically connected to the power management system. When the power management system detects abnormal power information and issues a fault signal, the shunt trip generates a cut-off signal according to the fault signal to control the output main switch to cut off the line conduction between the rectification module and the energy storage device.

[0021] In one embodiment, the housing is further provided with a power output port for connecting to the energy storage device, a power input port for connecting to an external power supply, and a communication port for communicating with the energy storage device.

[0022] In one embodiment, the power output port includes an Anderson port and a blind plug port.

[0023] In one embodiment, the communication port includes an S-IMPA communication port, an RS485 communication port, and an Ethernet communication port.

[0024] The present utility model also proposes a charging system, and the charging system includes the charging device as described above.

[0025] The technical solution of the present utility model adopts a charging device. The charging device has a constant voltage and current limiting charging mode, a constant current charging mode, and an equalizing charging mode. The device includes: a human-computer interaction component for outputting a corresponding charging mode selection signal and a charging parameter adjustment signal based on the user's operation; a rectification module, the power input end of the rectification module is electrically connected to an external power supply, and the power output end of the rectification module is electrically connected to an external electrical device, for converting the alternating current of the external power supply into direct current, and adjusting the direct current into a corresponding current value and voltage value and then outputting to the energy storage device for the energy storage device to charge; a power management system, the power management system is electrically connected to the rectification module, and the power management system is communicatively connected to the energy storage device. The power management system is used to control the rectification module to charge the energy storage device in one or more combinations of constant voltage and current limiting, constant current, and equalizing according to the received charging mode selection signal; the power management system is further used to detect the power information of the energy storage device and output a multimedia signal to the human-computer interaction component for the user to view the charging situation through the human-computer interaction component. The power management system is further used to control the rectification module to output a corresponding current value and voltage value according to the received charging parameter adjustment signal. In this way, the user can control the power management system through the human-computer interaction component to select the constant voltage and current limiting mode, the constant current mode, and the equalizing mode to control the rectification module to output direct current with a corresponding current value or voltage value for the energy storage device to charge, thereby effectively improving the charging accuracy of the charging device, enabling the user to adjust the output voltage, current, and charging mode by himself, and improving the adaptability of the charging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0027] Figure 1 It is a schematic framework diagram of an embodiment of the charging device provided by the present invention;

[0028] Figure 2 It is a circuit structure diagram of an embodiment of the charging device provided by the present invention;

[0029] Figure 3 It is a top view of the structure of an embodiment of the charging device provided by the present invention;

[0030] Figure 4 It is a reverse view of the structure of another embodiment of the theme provided by the present invention.

[0031] Explanation of the reference numerals in the drawings:

[0032] 1 - Rectification module; 2 - Voltage conversion component; 3 - Power management system; 4 - Human - machine interaction component; 5 - Power input switch component; 6 - Power output switch component; 61 - Shunt trip; 62 - Output main switch; 7 - Power input port; 8 - Power output port; 81 - Anderson port; 82 - Blind - plug port; 83 - Auxiliary power port; 9 - Communication port; 91 - S - IMPA communication port; 92 - RS485 communication port; 93 - Ethernet communication port; 10 - Air inlet; 11 - Air outlet; 12 - Housing; 13 - Fuse.

[0033] The realization, functional characteristics and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, then the directional indications will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on what can be achieved by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be achieved, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0037] The present utility model provides a charging device, which can effectively improve the charging accuracy of the charging device, enable the user to adjust the output voltage, current and charging mode by themselves, and improve the adaptability of the charging device.

[0038] Please refer to Figures 1 to 4 , in an embodiment of the present utility model, for the charging device, the charging device has a constant voltage and current limiting charging mode, a constant current charging mode and an equalizing charging mode, and the device includes:

[0039] A human-machine interaction component 4, configured to output a corresponding charging mode selection signal and a charging parameter adjustment signal based on the user's operation;

[0040] A rectification module 1, the power input end of the rectification module 1 is electrically connected to an external power supply, and the power output end of the rectification module 1 is electrically connected to an external electrical device, and is configured to convert the alternating current of the external power supply into direct current, and after adjusting the direct current into corresponding current values and voltage values, output the direct current to the energy storage device for the energy storage device to charge;

[0041] Power management system 3, the power management system 3 is electrically connected to the rectification module 1, the power management system 3 is communicatively connected to the energy storage device, and the power management system 3 is configured to control the rectification module 1 to charge the energy storage device in one or more combinations of constant voltage and current limiting, constant current, and equalization according to the received charging mode selection signal; the power management system 3 is further configured to detect the power information of the energy storage device and output a multimedia signal to the human-machine interaction component 4 for the user to view the charging status through the human-machine interaction component 4, and the power management system 3 is further configured to control the rectification module 1 to output corresponding current and voltage values according to the received charging parameter adjustment signal.

[0042] In this embodiment, the human-computer interaction component 4 processes the operation instructions of the user on the human-computer interaction component 4 to generate a charging mode selection signal (specifically, a constant voltage and current limiting charging mode selection signal, a constant current charging mode selection signal, and an equalization charging mode selection signal) and a charging parameter adjustment signal (specifically, a charging current adjustment signal and a charging voltage adjustment signal), and sends them to the power management system 3. The power management system 3 controls the rectification module 1 to step down, rectify, adjust the current, and filter an external power source (such as the power grid) according to the charging parameter adjustment signal and the charging mode selection signal, and then outputs the current value and voltage value set by the user in the corresponding mode for the energy storage device to charge. The power management system 3 is communicatively connected to the energy storage device. The power management system 3 (battery protection board) detects the power information (such as charging voltage, charging current, charging temperature, and fault status) of the BMS system in the energy storage device through the BMS system, generates multimedia content according to the detected power information, and outputs a multimedia signal to the human-computer interaction component 4 for the user to view the charging status through the human-computer interaction component 4. It is worth mentioning that the constant voltage and current limiting charging mode controls the output voltage and current to provide a stable voltage supply and protect circuit components from damage caused by excessive current. The constant voltage characteristic ensures that the output voltage remains stable when the load changes or the input voltage fluctuates, while the current limiting characteristic prevents the components in the circuit from being damaged by excessive current. The constant current charging mode keeps the current at a constant value all the time. This charging mode is particularly suitable for devices or batteries with strict requirements for charging current. By precisely controlling the current, the constant current charging mode can ensure that the battery is not damaged due to excessive current during the charging process, and at the same time, it can ensure that the battery obtains the best charging effect during the charging process. In the constant current charging mode, the power management system 3 will monitor the charging status of the battery in real time and dynamically adjust the magnitude of the charging current according to the real-time power information of the battery. When the battery power is low, the power management system 3 will appropriately increase the charging current to speed up the charging speed; when the battery power is close to full charge, the power management system 3 will gradually decrease the charging current to avoid damage to the battery caused by overcharging. The equalization charging mode is mainly used to solve the problem of uneven power among individual batteries in the battery pack. During the charging process, the power management system 3 will monitor the power information of each individual battery in real time and dynamically adjust the charging current and voltage of each individual battery according to this information, so that the power of all individual batteries can reach an equal state.

[0043] In summary, by adopting these three charging modes, the charging device of this embodiment can provide a more flexible, efficient, and safe charging solution for users. The power management system 3 can ensure that the battery always remains in the best state during the charging process by monitoring and adjusting the charging status of the battery in real time, thereby extending the service life of the battery and improving the charging efficiency.

[0044] In addition, in this embodiment, the BMS system is also adopted to detect the power information in the energy storage device, and the detection result is output to the human-machine interaction component 4 in the form of multimedia content, so that the user can more conveniently view the charging situation. This design not only improves the user experience, but also makes the charging process more transparent and controllable.

[0045] Specifically, the human-machine interaction component 4 can be implemented by means of a CRT touch screen, an LCD touch screen, an LED touch screen, and an OLED touch screen. The rectification module 1 can be composed of a transformer, an AC / AD rectifier, a current regulator, a filter, and a power management chip serving as the controller in the rectification module 1. After the external power supply enters the rectification module 1 through the transformer, the transformer performs voltage conversion on the input alternating current. The voltage adjusted by the transformer is sent to the AC / AD rectifier for rectification, and the AC / AD rectifier converts the alternating current into direct current. The power management system 3 generates a control signal through the charging mode selection signal and the charging parameter adjustment signal, and sends it into the power management chip. The power management chip controls the current regulator to precisely adjust the rectified direct current according to the received control signal to meet the current requirements of different devices. The presence of the current regulator not only improves the power utilization efficiency of the power supply, but also ensures the stable operation of the device under different working loads. The filter is used to further filter out the high-frequency noise and ripple in the rectified direct current, making the power supply output purer. Through a carefully designed circuit structure, the filter can effectively eliminate the interference signals in the power supply and ensure that the device is not affected by external noise when receiving the power supply. As the control core of the rectification module 1, the power management chip is responsible for receiving the control signal of the power management system 3 and adjusting the working state of the rectification module 1 according to the control signal. By precisely controlling components such as the transformer, the AC / AD rectifier, the current regulator, and the filter, the power management chip can ensure that the rectification module 1 provides a stable and reliable power supply for the device. At the same time, the power management chip also has protection functions such as overcurrent and overvoltage, and can quickly cut off the power supply when the device has an abnormality to protect the device from damage. The power management system 3 can be implemented by using a battery protection board.

[0046] In one embodiment, the charging device further includes:

[0047] A voltage conversion component 2, the power input end of the voltage conversion component 2 is electrically connected to the external power supply, and the power output end of the voltage conversion component 2 is electrically connected to the power input end of the power management system 3, and is used to convert the alternating current of the external power supply into corresponding direct current for the power management system 3 to use.

[0048] In this embodiment, the voltage conversion component 2 can effectively convert the alternating current of the external power supply into stable direct current, ensuring that the power management system 3 obtains continuous and stable power supply, and separating the power supply of the power management system 3 from that of the rectification module 1 through the voltage conversion component 2. Specifically, the voltage conversion component 2 can be composed of a rectifier, a filter, and a voltage regulator to form the voltage conversion component 2

[0049] In addition, the voltage conversion component 2 also has overvoltage and overcurrent protection functions to ensure that in the event of external power fluctuations or anomalies, it can automatically cut off the connection with the external power supply to protect the power management system 3 from damage. At the same time, the voltage conversion component 2 also has a thermal protection function. When its own temperature is too high, it can automatically reduce the power output or shut down to prevent overheating damage.

[0050] In one embodiment, the charging device further includes:

[0051] A housing 12, the housing 12 having an installation opening, and the human-computer interaction component 4 is installed in the installation opening;

[0052] A circuit board, disposed inside the housing 12.

[0053] In this embodiment, an installation opening is provided on the upper side wall of the housing 12, and the human-computer interaction component 4 is installed in the installation opening. The human-computer interaction component 4 is electrically connected to the power management system 3 inside the circuit board. The housing 12 can be integrally formed by casting or can be detachably connected by screws through multiple boards. The housing 12 can be set in the shape of a cuboid, a polyhedron, a cylinder, a sphere, an irregular shape, etc. to adapt to different application scenarios and user needs. The material of the housing 12 can be fireproof, waterproof, and dustproof plastic or metal material to ensure the safety and durability of the charging device. As the core part of the charging device, the circuit board can be provided as one or more, and a variety of electronic components are integrated thereon, such as the rectification module 1, the power management system 3, and the voltage conversion component 2, etc. These components work together to achieve the reception, control, conversion, and distribution of the external power supply, as well as the monitoring and protection of the charging state.

[0054] In one embodiment, the housing 12 is further provided with an air inlet 10 and an air outlet 11, and the air inlet 10 and the air outlet 11 are in communication with each other to form an air duct;

[0055] A fan, the fan is disposed inside the housing 12 and is disposed in the air duct.

[0056] In this embodiment, the fan can be electrically connected to the power management system 3 to achieve precise control of the fan speed. The power management system 3 can dynamically adjust the fan speed according to factors such as the internal temperature of the device, user settings, or preset operating modes to ensure that the device maintains an appropriate temperature during operation while reducing energy consumption and noise; or it can be controlled by an external controller. The rotation of the fan can drive the air flow inside the housing 12 to form an air current. When the fan starts, external air is sucked into the housing 12 through the air inlet 10. After being pushed by the fan, the air current flows along the air duct and finally exits from the air outlet 11, thereby accelerating the temperature exchange between the inside of the housing 12 and the outside. Such a design can not only effectively dissipate heat and reduce the internal temperature of the housing 12, but also prevent the charging device from reducing the charging efficiency and damaging the components inside the circuit board due to excessive temperature during the charging process, thus ensuring the stability and durability of the device operation.

[0057] In addition, to further optimize the heat dissipation effect, a dust-proof net can be provided at the air inlet 10 to prevent dust and debris from entering the housing 12 and affecting the normal operation of the fan. At the same time, heat sinks or heat dissipation grilles can also be provided at the air outlet 11 to increase the heat dissipation area and improve the heat dissipation efficiency.

[0058] In practical applications, according to the requirements and heat dissipation requirements of the device, the sizes, positions of the air inlet 10 and the air outlet 11, and the fan speed can be adjusted. For example, when operating at high load, the fan speed can be appropriately increased to improve the heat dissipation effect; while when operating at low load, the fan speed can be reduced to save energy and reduce noise.

[0059] In one embodiment, the charging device further includes:

[0060] A power input switch assembly 5, the power input switch assembly 5 is electrically connected to the external power supply, and the power input switch assembly 5 is respectively electrically connected to the power input end of the rectification module 1 and the power input end of the voltage conversion component 2, and is used to control the conduction or disconnection of the connection between the external power supply and the rectification module 1 and the voltage conversion component 2;

[0061] A power output switch assembly 6, the power output switch assembly 6 is electrically connected to the power output port 8 of the rectification module 1, the power output switch assembly 6 is electrically connected to the power input end of the energy storage device, and the controlled end of the power output switch assembly 6 is electrically connected to the control end of the power management system 3. The power output switch assembly 6 is used for the user to control the closing or disconnection of the conduction of the line between the rectification module 1 and the energy storage device; the power output switch assembly 6 is also used to cut off the conduction of the line between the rectification module 1 and the energy storage device when the power management system 3 detects abnormal power information.

[0062] In this embodiment, both the power input switch assembly 5 and the power output switch assembly 6 can adopt a switch design with high reliability and low impedance (such as a circuit breaker) to ensure stable current and low loss during the power input and output processes, while providing safe electrical isolation. When abnormal situations such as overcurrent and overvoltage occur, the power input switch assembly 5 and the power output switch assembly 6 are automatically cut off to avoid damage to the equipment.

[0063] Furthermore, both the power input switch assembly 5 and the power output switch assembly 6 have overload protection functions. By setting a fuse 13 or a thermal relay in the connected circuit, when the current in the circuit exceeds the preset safety threshold, the circuit between the lines can be automatically disconnected, thereby protecting the entire charging device from damage caused by overload.

[0064] As the core of the entire charging device, the power management system 3 is responsible for monitoring and managing the power quantity information of the power input, output, and energy storage device. In this embodiment, the power management system 3 realizes precise monitoring and intelligent management of the energy storage device (battery pack) by adopting BMS (Battery Management System) technology. This system can not only effectively prevent overcharging and over-discharging of the battery, but also quickly respond when the battery has an abnormality to ensure the safe and stable operation of the entire charging device.

[0065] As the core of the power management system 3, BMS technology can accurately judge the battery state by combining advanced algorithm models through real-time collection of key parameters such as the voltage, current, and temperature of the battery pack. Once an abnormal situation occurs in the battery pack, such as too high voltage, too large current, or too high temperature of a single battery, the BMS system will immediately activate corresponding protection mechanisms, such as cutting off the charging current and starting the cooling fan, to avoid battery damage or safety accidents.

[0066] In addition to monitoring and managing the battery pack, the power management system 3 also has the function of managing the power quantity information of the energy storage device. By real-time collecting, analyzing, and processing the power quantity information of the energy storage device, the system can accurately master the remaining power and charging state of the energy storage device, and can quickly and accurately obtain and process the power quantity information. When abnormal power quantity information is detected, the power management system 3 will quickly respond and cut off the line between the rectifier module 1 and the energy storage device through the power output switch assembly 6 to prevent damage to the equipment caused by abnormal situations.

[0067] In this embodiment, both the power input switch assembly 5 and the power output switch assembly 6 can be implemented by a circuit breaker, a load switch, or a contactor.

[0068] In one embodiment, the power output switch assembly 6 includes:

[0069] An output main switch 62, the output main switch 62 is electrically connected to the power output end of the rectification module 1, and the output main switch 62 is electrically connected to the power input end of the energy storage device, and is used to control the closing or cutting off of the line conduction between the rectification module 1 and the energy storage device;

[0070] A shunt trip 61, the shunt trip 61 is electrically connected to the output main switch 62, and the shunt trip 61 is electrically connected to the power management system 3. When the power management system 3 detects abnormal power information and issues a fault signal, the shunt trip 61 generates a cut-off signal according to the fault signal and sends it to the output main switch 62 to control the output main switch 62 to cut off the line conduction between the rectification module 1 and the energy storage device.

[0071] In this embodiment, when the power management system 3 detects abnormal power information, such as abnormal states such as overvoltage, overheating, loss of charging target, and output short circuit, and issues a fault signal to the shunt trip 61, the shunt trip 61 generates a cut-off signal according to the fault signal to control the output main switch 62 to cut off the line conduction between the rectification module 1 and the energy storage device, thereby protecting the safety of the energy storage device and the entire power system.

[0072] In one embodiment, the housing 12 is further provided with a power output port 8 for connecting to the energy storage device, a power input port 7 for connecting to an external power source, and a communication port 9 for communicating with the energy storage device.

[0073] In this embodiment, the power input port 7 can be designed in the form of a socket connected to the power grid. Users can introduce external power, such as the electricity of the household power grid, into the energy storage device for charging by inserting a dedicated power cord or adapter. Such a design not only ensures the stability of power input but also improves the convenience of use. The power output port 8 can be designed to include an Anderson port 81 and a blind plug port 82, so that the charging device can be adapted to different types of electric vehicles or other electric devices. As a widely used charging interface, the Anderson port 81 has strong compatibility and can ensure matching the charging requirements of most electric vehicles on the market. In addition, an auxiliary power port 83 can be set to provide power support for other auxiliary functions of the energy storage device. The design of the blind plug port 82 further improves the user experience. It can be easily inserted without precise alignment, greatly reducing the operation difficulty. The communication ports include an S-IMPA communication port 91, an RS485 communication port 92, and an Ethernet communication port 93. Among them, the S-IMPA communication port 91 is an efficient and stable communication protocol, especially suitable for data transmission between the energy storage device and the power management system 3. It can not only ensure the real-time nature of data transmission but also effectively prevent data loss and error codes, thus ensuring the stability and reliability of the entire system. The RS485 communication port 92 is a communication protocol widely used in the field of industrial automation. It supports multi-node and long-distance data transmission, enabling the power management system 3 to easily communicate with various energy storage devices to achieve remote monitoring and control. The Ethernet communication port 93 provides a more flexible communication method for users. Users can connect the energy storage device to a local area network or the Internet through an Ethernet cable to achieve remote access and management, greatly improving the scalability and convenience of the system.

[0074] The present utility model also proposes a charging system. This charging system includes the charging system as described above. The specific structure of this charging system refers to the above embodiments. Since this charging system adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0075] The technical solution of the present utility model adopts a charging device. The charging device has a constant voltage and current limiting charging mode, a constant current charging mode and an equalizing charging mode. The device includes: a human-computer interaction component, which is used to output a corresponding charging mode selection signal and a charging parameter adjustment signal based on the user's operation; a rectification module, the power input end of the rectification module is electrically connected to an external power supply, and the power output end of the rectification module is electrically connected to an external electrical device, which is used to convert the alternating current of the external power supply into direct current, and adjust the direct current into a corresponding current value and voltage value, and then output it to the energy storage device for the energy storage device to charge; a power management system, the power management system is electrically connected to the rectification module, and the power management system is communicatively connected to the energy storage device, which is used to control the rectification module to charge the energy storage device in one or more combinations of constant voltage and current limiting, constant current and equalizing according to the received charging mode selection signal; the power management system is also used to detect the power information of the energy storage device, and output a multimedia signal to the human-computer interaction component for the user to view the charging situation through the human-computer interaction component, and is more used to control the rectification module to output a corresponding current value and voltage value according to the received charging parameter adjustment signal. In this way, the user can control the power management system through the human-computer interaction component to select the constant voltage and current limiting mode, the constant current mode and the equalizing mode to control the rectification module to output direct current with a corresponding current value or voltage value for the energy storage device to charge, thereby effectively improving the charging accuracy of the charging device, enabling the user to adjust the output voltage, current and charging mode by himself, and improving the adaptability of the charging device.

[0076] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A charging device, characterized in that: The charging device has a constant voltage and current limiting charging mode, a constant current charging mode and a balanced charging mode, and the device includes: A human-computer interaction component, used to output a corresponding charging mode selection signal and a charging parameter adjustment signal based on the user's operation; A rectifier module, wherein a power input end of the rectifier module is electrically connected to an external power source, and a power output end of the rectifier module is electrically connected to an external power-consuming device, and is used to convert the AC power of the external power source into DC power, and after adjusting the DC power to corresponding current values ​​and voltage values, output the DC power to the energy storage device for charging the energy storage device; A power management system, wherein the power management system is electrically connected to the rectifier module, and the power management system is communicatively connected to the energy storage device. The power management system is used to control the rectifier module to charge the energy storage device in one or more corresponding combinations of constant voltage and current limiting, constant current and balancing according to the received charging mode selection signal; the power management system is also used to detect the power information of the energy storage device and output a multimedia signal to the human-computer interaction component so that the user can view the charging status through the human-computer interaction component. The power management system is also used to control the rectifier module to output corresponding current and voltage values ​​according to the received charging parameter adjustment signal.

2. The charging device according to claim 1, characterized in that: The charging device also includes: A voltage conversion component, wherein the power input terminal of the voltage conversion component is electrically connected to the external power supply, and the power output terminal of the voltage conversion component is electrically connected to the power input terminal of the power management system, and is used to convert the alternating current of the external power supply into corresponding direct current for use by the power management system.

3. The charging device according to claim 1, characterized in that: The charging device also includes: A housing, wherein the housing has a mounting opening, and the human-machine interaction component is mounted on the mounting opening; The circuit board is arranged in the shell.

4. The charging device according to claim 3, characterized in that: The shell is also provided with an air inlet and an air outlet, and the air inlet and the air outlet are connected to each other to form an air duct; A fan is arranged in the housing and in the air duct.

5. The charging device according to claim 2, characterized in that: The charging device also includes: A power input switch component, the power input switch component is electrically connected to the external power supply, and the power input switch component is electrically connected to the power input end of the rectifier module and the power input end of the voltage conversion component respectively; the power output switch component is used for the user to control the connection between the external power supply and the rectifier module and the voltage conversion component to be turned on or off; A power output switch component, wherein the power output switch component is electrically connected to the power output port of the rectifier module, the power output switch component is electrically connected to the power input end of the energy storage device, and the controlled end of the power output switch component is electrically connected to the control end of the power management system; the power output switch component is used for the user to control the closing or cutting off of the line conduction between the rectifier module and the energy storage device, and is also used to cut off the line conduction between the rectifier module and the energy storage device when the power management system detects abnormal power information.

6. The charging device according to claim 5, characterized in that: The power output switch component comprises: An output main switch, the output main switch is electrically connected to the power output terminal of the rectifier module, the output main switch is electrically connected to the power input terminal of the energy storage device, and is used to control the closing or cutting off of the line conduction between the rectifier module and the energy storage device; A shunt release, the shunt release is electrically connected to the output main switch, and the shunt release is electrically connected to the power management system, and is used for when the power management system detects that the power information is abnormal and sends a fault signal, the shunt release generates a cut-off signal according to the fault signal to control the output main switch to cut off the line conduction between the rectifier module and the energy storage device.

7. The charging device according to claim 3, characterized in that: The housing is also provided with a power output port for connecting to the energy storage device, a power input port for connecting to an external power source, and a communication port for communicating with the energy storage device.

8. The charging device according to claim 7, characterized in that: The power output port includes an Anderson port and a blind plug port.

9. The charging device according to claim 7, characterized in that: The communication ports include an S-IMPA communication port, an RS485 communication port and an Ethernet communication port.

10. A charging system, characterized in that: The charging system comprises the charging device according to any one of claims 1 to 9.

Images