Movable energy storage system with charging gun

Abstract

The invention discloses a movable energy storage system device with a charging gun, and relates to the technical field of electric energy storage and electric vehicle charging, the movable energy storage system device comprises a box body, the interior of the box body is divided into a first chamber and a second chamber, the two sides of the first chamber are provided with a first box door and a second box door, and the two sides of the second chamber are provided with a third box door and a fourth box door; an operation screen, a heat dissipation device, a PCS system, an EMS system, a control room and a high-voltage box are arranged in the first cavity; a BMS (Battery Management System), a fire extinguishing system and a dehumidifier are arranged in the second chamber; a charging pile is arranged on one side of the box body; the box body is provided with a wire inlet and a wire outlet, the wire inlet is connected with the alternating current main circuit breaker, the output end of the alternating current main circuit breaker is connected with the alternating current device and the charging pile circuit breaker, the output end of the charging pile circuit breaker is connected with the charging pile, the output end of the alternating current device is connected with the high-voltage box, and the high-voltage box is electrically connected with the battery box. The system is movable, meets the requirements of charging station interest arbitrage, emergency rescue and other scenes, and ensures stable work in different temperature environments.

Description

Technical Field

[0001] The present invention relates to the technical fields of power energy storage and electric vehicle charging, and specifically to a mobile energy storage system with a charging gun. Background Art

[0002] In the fields of power energy storage and electric vehicle charging, traditional fixed energy storage systems and charging facilities have limitations in terms of flexibility and mobility, and cannot meet the rapidly changing market and emergency needs. Therefore, there is an urgent need for a mobile energy storage system with a charging gun to solve the above problems. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies in the prior art and design a mobile energy storage system with a charging gun. This system has characteristics such as flexible deployment, multi-scenario adaptation, and intelligent energy management, and can be widely applied in the fields of power energy storage and electric vehicle charging. The system can achieve significant social and economic benefits in multiple fields, especially in situations where rapid deployment and mobility are required.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0005] In a first aspect, the present invention provides a mobile energy storage system with a charging gun, comprising:

[0006] A box body,

[0007] The interior of the box body is divided into a first chamber and a second chamber. A first box door and a second box door are provided on both sides of the first chamber, and a third box door and a fourth box door are provided on both sides of the second chamber;

[0008] An operation screen, a heat dissipation device, a PCS system (energy storage converter system), an EMS system (energy management system), a control room, and a high-voltage box are arranged inside the first chamber;

[0009] A BMS system (battery management system), a fire protection system, and a dehumidifier are arranged inside the second chamber;

[0010] A charging pile is provided on one side of the box body;

[0011] An inlet and an outlet are provided on the box body. The inlet is connected to an AC main circuit breaker, the output end of the AC main circuit breaker is connected to an AC device and a charging pile circuit breaker, the output end of the charging pile circuit breaker is connected to the charging pile, the output end of the AC device is connected to the high-voltage box, and the high-voltage box is electrically connected to the battery box.

[0012] As a further technical solution of the present invention, a bracket is provided at the bottom of the box body, and a forklift hole is provided on the side of the bracket.

[0013] As a further technical solution of the present invention, the heat dissipation device includes a liquid-cooled air conditioner, a liquid-cooled pipeline, and a cooling fan. The liquid-cooled pipeline is distributed on the battery box. The liquid-cooled air conditioner is connected to the liquid-cooled pipeline. The cooling fan is arranged inside the second box door. Heat dissipation holes are arranged on the first box door and are directly opposite to the liquid-cooled air conditioner.

[0014] As a further technical solution of the present invention, the BMS system includes:

[0015] A battery box, a battery management unit, a central control unit, a communication line interface, and a data storage unit. The battery management unit is connected to the battery box. The battery management unit is connected to the central control unit. The central control unit is connected to the communication line interface. The central control unit is connected to the data storage unit.

[0016] As a further technical solution of the present invention, electric cores are arranged in the battery box. A voltage sensor and a temperature are arranged on the electric cores. An equalizing resistor is arranged between the electric cores.

[0017] As a further technical solution of the present invention, the PCS system includes:

[0018] A power module, which is used to control power devices to conduct and turn off according to a specific switching sequence, and convert alternating current into direct current;

[0019] A control unit, which adjusts the switching frequency and duty cycle of the power devices in real time according to the voltage and frequency of the power grid to ensure that the output direct current voltage is stable at a set value;

[0020] A filter circuit, which is used to filter the alternating current voltage of the power grid;

[0021] A communication interface, which is used to perform data communication with the BMS and EMS.

[0022] As a further technical solution of the present invention, the EMS system includes:

[0023] A data acquisition and transmission module, which acquires data inside and outside the system and transmits it to the data processing unit;

[0024] A data processing unit, which performs real-time processing and analysis on the data to generate a current state description and a performance evaluation result of the system;

[0025] A control strategy unit, which formulates corresponding control strategies according to the performance evaluation result and a preset optimization goal;

[0026] A human-machine interaction interface, which easily realizes on-site management and maintenance of the device through an intuitive graphical interface;

[0027] A storage unit, and the human-machine interaction interface is arranged on the third box door.

[0028] As a further technical solution of the present invention, the fire protection system includes a fire extinguisher bottle, a fire protection processor, and a fire protection pipeline. The fire extinguisher bottle is connected to the fire protection pipeline, and the fire protection processor is connected to the fire extinguisher bottle.

[0029] As a further technical solution of the present invention, the charging pile is composed of a DC charger and a charging connector, and the charging connector is connected to the charging pile circuit breaker.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention is movable, has the ability to be quickly deployed and moved, and can adapt to the needs of different scenarios.

[0032] 2. The present invention is integrated with a charging gun, which can provide charging services for electric vehicles and meet the needs of scenarios such as charging station arbitrage and emergency rescue.

[0033] 3. The present invention is equipped with an intelligent energy management system. Through the data acquisition module, various operating parameters inside and outside the system are continuously obtained. The real-time data is compared and analyzed with preset thresholds, reference models, or historical data to determine whether the current operating state of the system is normal and whether energy scheduling or equipment control adjustment is required. The control instructions generated according to the analysis results are transmitted to the corresponding execution devices through the communication module. The execution devices act according to the instructions, changing the operating state of the system, enabling the system to dynamically adjust the operating parameters according to the actual situation, always maintaining the best working state or running towards the preset optimization goal, and realizing peak shaving and valley filling and electricity price difference arbitrage, etc.

[0034] 4. The present invention can adapt to a wide range of temperature and humidity environments and meet the usage requirements in multiple regions. The system adopts a liquid cooling heat dissipation method. Liquid cooling pipes are arranged around the main heat-generating components such as the battery module and the power conversion module. The coolant circulates in the pipes, taking away the heat. Ensure stable operation in different temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structure diagram of a movable energy storage system box with a charging gun proposed by the present invention;

[0036] Figure 2 It is a front view of a movable energy storage system box with a charging gun proposed by the present invention;

[0037] Figure 3 It is a rear view of a movable energy storage system box with a charging gun proposed by the present invention;

[0038] Figure 4 It is a top view of a movable energy storage system box with a charging gun proposed by the present invention;

[0039] Figure 5 Left view of the box body of a mobile energy storage system with a charging gun proposed by the present invention;

[0040] Figure 6 Right view of the box body of a mobile energy storage system with a charging gun proposed by the present invention;

[0041] Figure 7 Bottom view of the box body of a mobile energy storage system with a charging gun proposed by the present invention;

[0042] Figure 8 Front view of the opened box body of a mobile energy storage system with a charging gun proposed by the present invention;

[0043] Figure 9 Rear view of the opened box body of a mobile energy storage system with a charging gun proposed by the present invention;

[0044] Figure 10 Wiring diagram of a mobile energy storage system with a charging gun proposed by the present invention;

[0045] Figure 11 Structure diagram of a mobile energy storage system with a charging gun proposed by the present invention;

[0046] As shown in the figure:

[0047] 10 - Box body, 20 - Operation screen, 30 - Heat dissipation device, 40 - PCS system, 50 - EMS system, 60 - Control room, 70 - BMS system, 80 - Fire protection system, 90 - Dehumidifier;

[0048] 101 - First box door, 102 - Second box door, 103 - Third box door, 104 - Fourth box door, 105 - Charging pile, 106 - Inlet, 107 - Outlet, 108 - Bracket, 109 - Forklift hole;

[0049] 111 - Heat dissipation hole, 151 - DC charger, 152 - Charging connector;

[0050] 301 - Liquid - cooled air conditioner, 302 - Liquid - cooled pipeline, 303 - Heat dissipation fan;

[0051] 401 - Power module, 402 - Control unit, 403 - Filter circuit, 404 - Communication interface;

[0052] 501 - Data acquisition and transmission module, 502 - Data processing unit, 503 - Control strategy unit, 504 - Human - machine interaction interface, 505 - Storage unit;

[0053] 701 - Battery box, 702 - Battery management unit, 703 - Central control unit, 704 - Communication line interface, 705 - Data storage unit;

[0054] 801 - Fire extinguisher bottle, 802 - Fire processor, 803 - Fire pipeline. Specific implementation manner

[0055] The following describes the specific implementation manner of the present invention in conjunction with the accompanying drawings and embodiments:

[0056] It should be noted that the structures, colors, ratios, sizes, etc. illustrated in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present invention. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0057] At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration, and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope of implementation of the present invention.

[0058] As Figures 1 to 11 shown, the present invention provides a movable energy storage system with a charging gun, including:

[0059] Box body 10,

[0060] The interior of the box body 10 is divided into a first chamber and a second chamber. First box doors 101 and 102 are arranged on both sides of the first chamber, and third box doors 103 and 104 are arranged on both sides of the second chamber;

[0061] An operation screen 20, a heat dissipation device 30, a PCS system 40, an EMS system 50, and a control room 60 are arranged inside the first chamber;

[0062] A BMS system 70, a fire protection system 80, and a dehumidifier 90 are arranged inside the second chamber;

[0063] A charging pile 105 is arranged on one side of the box body 10;

[0064] An inlet 106 and an outlet 107 are arranged on the box body 10. The inlet is connected to the AC main circuit breaker. The output end of the AC main circuit breaker is connected to an AC contactor and a charging pile circuit breaker. The output end of the charging pile circuit breaker is connected to the charging pile. The output end of the AC contactor is connected to a high-voltage box, and the high-voltage box is electrically connected to the battery box.

[0065] In the embodiment of the present invention, the box body is provided to play a supporting and fixing role to support the movable energy storage system. The box body is divided into a first chamber and a second chamber, which are respectively used to place the control system and the energy storage battery. The charge and discharge of the energy storage battery is controlled by the control system to realize the charge and discharge function of the mobile energy storage system. The operation screen is provided for convenient use. The heat dissipation device dissipates heat from the battery in the box body, and the fire protection system protects and prevents the box body. The external charging pile on the outer side of the box body realizes the external charging function. The system is integrated with a charging gun, which can provide charging services for electric vehicles and meet the requirements of scenarios such as charging station arbitrage and emergency rescue.

[0066] The present invention highly integrates key components such as a charging gun, a battery box, and a PCS in a movable main body structure. Moreover, the product size and weight are carefully designed. The total size is 1700x1600x1400mm, and the total weight is about 2.5t, which is convenient for transportation and rapid deployment. It can adapt to various different scenario requirements. Whether it is for temporary power supply guarantee in the city or emergency power supply in remote areas, it can quickly arrive and be put into use, greatly breaking through the geographical limitations of traditional fixed energy storage systems.

[0067] The energy management system of the present invention is based on big data and artificial intelligence, and can be intelligently scheduled according to the grid conditions and electricity price fluctuations to achieve peak shaving and valley filling and electricity price difference arbitrage, effectively improving the energy utilization efficiency and economic benefits. In addition, the environmental adaptation components enable the system to operate stably in a wide range of temperature and humidity environments, adapt to the complex climate conditions in multiple regions, and the quick connection feature simplifies the installation process and enables the system to be quickly put into operation, further enhancing the practicality and adaptability of the system. The integrated charging gun can not only provide charging services for electric vehicles, but also has intelligent functions. It can automatically identify the battery types and charging requirements of different electric vehicles, dynamically adjust the charging power and voltage, and can also interact with the vehicle and the energy storage system management platform in real time through wireless communication to ensure charging safety and efficiency.

[0068] A mobile energy storage system with a chogn electric gun provided by the present invention designs diversified operation models for different application fields and customer groups. The "peak-valley arbitrage" model for industrial and commercial users helps users save electricity costs and obtain benefits in proportion by signing an EMC contract with users and providing technical support for the energy management system, achieving a win-win situation. For the "charging station cooperation + energy storage device deployment" model for charging station operators, charging during low valleys and discharging during peaks not only relieves the pressure on the power grid but also increases the income of the operators, and can also obtain additional subsidies in cooperation with the grid demand-side response policy. For the "short-term lease + peak service" model for power grid companies or substation operators, renting energy storage devices during peak electricity consumption periods to relieve the load pressure of the substation and providing professional load analysis and energy storage scheduling services to profit from the power balance service fees and equipment rental fees, ensuring the stable operation of the power grid. The "short-term lease + time-of-use charging" model for construction units or rental enterprises provides power guarantee for temporary construction and also provides equipment operation and maintenance and monitoring services to meet the special needs of temporary construction scenarios. The "mobile service + per-use charging" model for traffic management departments, insurance companies and rescue enterprises provides a quickly deployable energy storage system service during road rescue, charging per use or by duration, equipped with a dispatchable platform to achieve rapid positioning and optimal dispatch of the system, and expands the public emergency service market in combination with government subsidies, improving the efficiency and reliability of emergency rescue.

[0069] The present invention promotes the wide application of energy storage systems in different industries and fields, and strengthens the collaborative cooperation between the energy storage industry and multiple industries such as electric vehicle charging, industry and commerce, power grid, and emergency rescue. By optimizing the storage and distribution of energy, the flexibility and stability of the entire energy system are improved, which helps to promote the transformation and upgrading and sustainable development of the energy structure, and is of great significance in coping with energy crises, environmental pollution, and enhancing the social energy security ability, providing strong support for building an intelligent, efficient, and green energy ecosystem.

[0070] A bracket 108 is provided at the bottom of the box body 10 of the present invention, and a forklift hole 109 is provided on the side of the bracket 108. The box body is supported by the bracket. When the box body needs to be moved, the box body is carried onto the vehicle by a forklift to achieve the moving function. It has the ability of quick deployment and movement, meeting the requirements of different scenarios.

[0071] In the embodiment of the present invention, the heat dissipation device 30 includes a liquid-cooled air conditioner 301, a liquid-cooled pipeline 302, and a heat dissipation fan 303. The liquid-cooled pipeline 302 is distributed on the battery box. The liquid-cooled air conditioner 301 is connected to the liquid-cooled pipeline 302. The heat dissipation fan 303 is arranged inside the second box door 102, and a heat dissipation hole 111 is provided on the first box door 101 and the heat dissipation hole 111 is directly opposite to the liquid-cooled air conditioner.

[0072] The present invention can adapt to a wide range of temperature and humidity environments and meet the usage requirements in multiple regions. The system adopts a liquid cooling method, with liquid cooling pipes arranged around the main heat-generating components such as the battery module and the power conversion module. The coolant circulates in the pipes to carry away heat, ensuring stable operation in different temperature environments. At the same time, temperature sensors are used to monitor the temperatures of various components in real time. Once the temperature exceeds the preset threshold, the cooling system automatically adjusts its working intensity to ensure that the system will not experience performance degradation or malfunction due to overheating in a high-temperature environment.

[0073] See Figure 11 In an embodiment of the present invention, the BMS system 70 includes:

[0074] A battery box 701, a battery management unit 702, a central control unit 703, a communication line interface 704, and a data storage unit 705. The battery management unit 702 is connected to the battery box 701, the battery management unit 702 is connected to the central control unit 703, the central control unit 703 is connected to the communication line interface 704, and the central control unit 703 is connected to the data storage unit 705.

[0075] The battery box 701 is provided with battery cells, voltage sensors and temperature sensors are provided on the battery cells, and balancing resistors are provided between the battery cells.

[0076] The system is equipped with an intelligent energy management system, including a data acquisition module, a data analysis and processing unit, a communication module, a control decision-making module, etc. The data acquisition module continuously obtains various operating parameters inside and outside the system, and these parameters are input into the data analysis and processing unit as feedback signals. This unit compares and analyzes the real-time data with preset thresholds, reference models, or historical data to determine whether the current operating state of the system is normal and whether energy scheduling or device control adjustment is required. The control instructions generated according to the analysis results are transmitted to the corresponding execution devices (such as PCS, charging guns, cooling devices, etc.) through the communication module. The execution devices act according to the instructions to change the operating state of the system, and these state changes will be monitored again by the data acquisition module, forming a complete closed-loop control loop, enabling the system to dynamically adjust operating parameters according to the actual situation, always maintaining the best working state or running towards the preset optimization goal, and achieving peak shaving, valley filling, and electricity price difference arbitrage, etc.

[0077] This patent adopts a two - level network architecture. Each battery box is responsible for functions such as collecting the individual voltage, temperature of its battery cells, and passive balancing by a Battery Management Unit (BMU). In this architecture, the primary network usually involves high - speed and stable data interaction between the Central Control Unit (CCU) and external systems (such as the Power Conversion System (PCS), Energy Management System (EMS), etc.). The CCU undertakes the core decision - making and coordination tasks of the entire battery management system. It receives data from the BMU of each battery box, and summarizes, analyzes, and processes this data. The secondary network focuses on each independent battery box. The BMU in each battery box is directly connected to the battery cells inside the box. Its voltage acquisition function is achieved through high - precision voltage sensors, which can accurately measure the voltage value of each battery cell, with a resolution reaching the microvolt level, thus promptly capturing the subtle changes in the battery cell voltage. For temperature acquisition, the BMU uses temperature sensors (such as thermistors) distributed between or on the surface of the battery cells to monitor the operating temperature of the battery cells in real - time, with the accuracy controllable within ±0.5°C. When the BMU detects a voltage difference between the battery cells, the passive balancing function is activated. It dissipates the excess electrical energy of the battery cell with a higher voltage in the form of heat through the balancing resistors connected between the battery cells, gradually making the voltages of each battery cell tend to be the same. This process is automatic and continuous to maintain the consistency of the battery cells in the battery box, ensuring the stable performance and safety of the entire battery box. The advantages of the two - level network architecture are obvious. First, it realizes hierarchical management of the battery system, ensuring both the overall control of the central control unit over the entire system and endowing each battery box with the ability to autonomously manage its battery cells, improving the reliability and flexibility of the system. For example, when a local fault or abnormality occurs in a certain battery box, the BMU can quickly respond and attempt to perform preliminary processing, while reporting detailed information to the CCU. The CCU can then coordinate the operating status of other battery boxes or take further countermeasures according to the overall operation of the system, such as adjusting the charge - discharge strategy, sending out alarm signals, etc., thus ensuring the stable operation of the entire energy storage system and reducing the risk of system downtime or performance degradation caused by local faults.

[0078] In the embodiment of the present invention, the PCS system 40 includes: a power module 401, which is used to control the power devices to conduct and turn off according to a specific switching sequence, and convert alternating current into direct current;

[0079] a control unit 402, which adjusts the switching frequency and duty cycle of the power devices in real - time according to the voltage and frequency of the power grid to ensure that the output direct - current voltage is stable at a set value;

[0080] a filter circuit 403, which is used to filter the alternating - current voltage of the power grid;

[0081] a communication interface 404, which is used to conduct data communication with the BMS and EMS.

[0082] The PCS adopts a modular converter product specifically tailored for small energy storage systems, with a rated power of 100 kW. The PCS mainly consists of a power module, a control unit, a filtering circuit, a communication interface, etc. The PCS inverter can operate in two modes: rectification mode and inversion mode. In the rectification mode (AC to DC), the alternating current from the power grid first passes through the AC filtering circuit for filtering to remove high-frequency harmonics in the power grid. Then, under the action of the control unit, the power devices in the power module conduct and turn off according to a specific switching sequence, converting the alternating current into direct current. During this process, the control unit adjusts the switching frequency and duty cycle of the power devices in real time according to the voltage and frequency of the power grid to ensure that the output DC voltage is stable at the set value. In the inversion mode (DC to AC), the battery discharges, and the direct current output by the battery first passes through the DC filtering circuit for smoothing. Then, the control unit generates pulse signals to control the power devices in the power module according to the voltage, frequency, and phase information of the power grid, as well as the discharge power command issued by the EMS. The power devices perform switching actions according to these pulse signals, converting the direct current into alternating current that meets the power grid standards. During operation, the PCS continuously receives information from the BMS and EMS and performs energy scheduling and control based on this information. When the BMS detects that the SOC of the battery is low and the battery is in the charging state, the PCS will adjust the charging power in the rectification mode according to the maximum allowable charging current of the battery and the power supply capacity of the power grid to avoid overcharging. When the EMS issues a discharge command according to the power grid load and electricity price, the PCS adjusts the discharge power in the inversion mode according to the command to achieve arbitrage of electricity price differences or assist the power grid in regulating frequency, voltage, etc. Due to the adoption of advanced power modules and control algorithms, the PCS has a high power conversion efficiency. In the rectification mode, the conversion efficiency can reach more than 90%, and in the inversion mode, the conversion efficiency can be as high as more than 95%. For example, when converting the alternating current from the power grid into direct current required for battery charging, if the input power is 100 kW, after being converted by the PCS, the actual DC power output to the battery can reach more than 90 kW, reducing the energy loss during the conversion process, improving the energy utilization efficiency of the entire energy storage system, and reducing the operating cost.

[0083] In the embodiment of the present invention, the EMS system 50 includes: a data acquisition and transmission module 501, which acquires internal and external data of the system and transmits it to the data processing and analysis unit;

[0084] A data processing unit 502, which performs real-time processing and analysis on the data to generate a current state description and a performance evaluation result of the system;

[0085] A control strategy unit 503, which formulates corresponding control strategies according to these analysis results and preset optimization objectives;

[0086] The human-machine interaction interface 504 enables easy in-situ management and maintenance of the device through an intuitive graphical interface;

[0087] The storage unit 505, and the human-machine interaction interface is arranged on the third cabinet door.

[0088] In the embodiment of the present invention, the fire protection system 80 includes a fire extinguisher bottle 801, a fire protection processor 802, and a fire protection pipeline 803. The fire extinguisher bottle 801 is connected to the fire protection pipeline 803, and the fire protection processor 802 is connected to the fire extinguisher bottle 801.

[0089] The data acquisition and transmission module continuously obtains various internal and external data of the system and transmits it to the data processing and analysis unit. This unit performs real-time processing and analysis on the data to generate a description of the current state of the system and a performance evaluation result. The control strategy formulation unit formulates corresponding control strategies according to these analysis results and preset optimization goals, such as adjusting the charge and discharge power of the PCS, etc. These control instructions are transmitted to the corresponding devices (such as PCS, charging piles, etc.) through the communication module. After the devices execute the instructions, the change in their operating states will be collected again by the data acquisition and transmission module, forming a complete closed-loop control loop to ensure that the system always operates towards the optimization goal. The EMS system uses a variety of intelligent optimization algorithms to achieve efficient management of energy, ensuring a charge and discharge plan that minimizes the total cost or maximizes the benefit throughout the entire operating cycle. In terms of equipment operation and maintenance, the fault prediction and health management (PHM) algorithm is adopted. By long-term monitoring and analysis of the equipment operation data, a health model of the equipment is established to predict the possible fault types and times of the equipment, and maintenance measures are taken in advance to reduce the equipment failure rate and improve the reliability and availability of the system. The high-definition touch integrated industrial screen human-machine interface provides a convenient operation experience for operators. Operators do not need to have professional programming or complex operation skills, and can easily achieve in-situ management and maintenance of the device through an intuitive graphical interface. During operation, through the real-time data display and graphical curves on the screen, operators can clearly understand the operating state of the system, such as the change in battery power, the magnitude of charge and discharge power, etc. When it is necessary to adjust the operation strategy, simple settings can be completed on the screen through touch operations, greatly improving the operation efficiency and management convenience, and reducing the work intensity and training cost of operators.

[0090] The cabinet-type energy storage non-pressurized fire extinguishing device uses clean perfluorohexanone fire extinguishing agent as the fire extinguishing medium, and is a cabinet-type energy storage non-pressurized fire extinguishing device that integrates control and fire extinguishing.

[0091] In the embodiment of the present invention, the charging pile 105 is composed of a DC charger 151 and a charging connector 152, and the charging connector is connected to the charging pile circuit breaker.

[0092] The battery uses lithium iron phosphate battery cells and features high safety and high cycle life.

[0093] The embodiments of the present invention can be used for the following business model designs:

[0094] Business model design for user-side energy storage: Targeting industrial and commercial users, adopting the "peak-valley arbitrage" model, providing mobile energy storage system services to users, and signing an EMC contract with users. Supporting the provision of energy management system (EMS) technical support to achieve peak shaving and valley filling for optimal scheduling. Charging service fees or sharing profits according to the proportion of the electricity cost savings of users.

[0095] Business model design for charging station arbitrage: For charging station operators, adopting the "charging station cooperation + energy storage device deployment" model, deploying mobile energy storage systems at charging stations, charging during low-demand periods, and supplying power to vehicles during high-demand periods. The operator pays equipment rental fees or shares profits through a sharing model. Cooperating with the grid's demand response policy to obtain additional subsidy income.

[0096] Business model design for peak summer deployment in distribution substations: For power grid companies or substation operators, adopting the "short-term rental + peak service" model, renting energy storage devices during peak electricity consumption periods to relieve the load pressure of substations. Supporting the provision of load analysis and energy storage scheduling services to ensure the efficient operation of the system. Taking power balance service fees and equipment rental fees as the main profit points.

[0097] Business model design for temporary construction electricity rental: Targeting construction units or rental enterprises, adopting the "short-term rental + time-of-use charging" model, providing power guarantee for temporary construction through time-of-use pricing and recording electricity consumption for accurate billing. Combining photovoltaic energy supplement options to provide a more economical and environmentally friendly power supply solution. Providing equipment operation and maintenance and monitoring services to ensure the stable operation of the system.

[0098] Business model design for emergency rescue: For traffic management departments, insurance companies, and rescue enterprises, adopting the "mobile service + per-time charging" model, providing rapid deployment services for energy storage systems during road rescue, charging per time or according to service duration. Equipped with a dispatchable platform to achieve rapid positioning and optimal scheduling of the system. Combining government subsidy policies to expand the public welfare emergency service market.

[0099] Embodiment 1: User-side energy storage

[0100] Scenario description: A factory in an industrial park uses energy storage to obtain electricity price difference benefits.

[0101] Implementation steps: 1) The factory signs an EMC contract energy management agreement with the energy storage service provider, and the investor builds a set of 100kW / 215kWh mobile energy storage system.

[0102] 2) The energy storage system stores electrical energy during the low - valley electricity price period at night and releases electrical energy during the peak period during the day to meet the power demand of the factory.

[0103] 3) The EMS system equipped in the energy storage system automatically optimizes the charge - discharge scheduling of the energy storage system according to the factory's electricity load and electricity price model.

[0104] 4) The factory realizes cost savings based on the saved electricity charges and the sharing with the service provider according to the agreement.

[0105] Example 2: Charging station arbitrage

[0106] Scenario description: An electric vehicle charging station faces the problem of excessive grid load during the morning and evening peak periods every day.

[0107] Implementation steps:

[0108] 1) The charging station operator rents two sets of movable energy storage systems to balance the power demand during peak periods.

[0109] 2) During the low - valley electricity price period at night, the energy storage system stores electrical energy; during the peak period during the day, the energy storage system provides power for the charging station to reduce the grid load.

[0110] 3) The charging station shares the power provided by the energy storage system and the saved electricity charges with the service provider according to the agreement to increase revenue.

[0111] 4) The charging station participates in the grid demand - side response to obtain additional subsidy income.

[0112] In addition, it should be understood that although this specification is described according to the implementation manners, not every implementation manner only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A mobile energy storage system with a charging gun, characterized in that, Comprising: A box body, The interior of the box body is divided into a first chamber and a second chamber. A first box door and a second box door are arranged on both sides of the first chamber, and a third box door and a fourth box door are arranged on both sides of the second chamber; An operation screen, a heat dissipation device, a PCS system, an EMS system, a control room and a high-voltage box are arranged inside the first chamber; A BMS system, a fire protection system and a dehumidifier are arranged inside the second chamber; A charging pile is arranged on one side of the box body; An inlet and an outlet are arranged on the box body. The inlet is connected to an AC main breaker. The output end of the AC main breaker is connected to an AC contactor and a charging pile breaker. The output end of the charging pile breaker is connected to the charging pile. The output end of the AC contactor is connected to the high-voltage box, and the high-voltage box is electrically connected to the battery box.

2. The mobile energy storage system with a charging gun according to claim 1, characterized in that, Supports are arranged at the bottom of the box body, and forklift holes are arranged on the sides of the supports.

3. The mobile energy storage system with a charging gun according to claim 1, characterized in that, The heat dissipation device includes a liquid-cooled air conditioner, liquid-cooled pipelines and heat dissipation fans. The liquid-cooled pipelines are distributively arranged on the battery box. The liquid-cooled air conditioner is connected to the liquid-cooled pipelines. The heat dissipation fans are arranged inside the second box door, and heat dissipation holes are arranged on the first box door and the heat dissipation holes are opposite to the liquid-cooled air conditioner.

4. A movable energy storage system with a charging gun according to claim 1, characterized in that, The BMS system includes: A battery box, a battery management unit, a central control unit, a communication line interface and a data storage unit. The battery management unit is connected to the battery box, the battery management unit is connected to the central control unit, the central control unit is connected to the communication line interface, and the central control unit is connected to the data storage unit.

5. A movable energy storage system with a charging gun according to claim 1, characterized in that, Electric cores are arranged inside the battery box, voltage sensors and temperatures are arranged on the electric cores, and balancing resistors are arranged between the electric cores.

6. A mobile energy storage system with a charging gun according to claim 1, characterized in that, The PCS system includes: A power module, which is used to control power devices to conduct and turn off according to a specific switching sequence and convert alternating current into direct current; A control unit, which adjusts the switching frequency and duty cycle of the power devices in real time according to the voltage and frequency of the power grid to ensure that the output direct current voltage is stable at a set value; A filter circuit, which is used to filter the AC voltage of the power grid; A communication interface, which is used to conduct data communication with the BMS and the EMS.

7. The mobile energy storage system with a charging gun according to claim 1, characterized in that, The EMS system includes: A data acquisition and transmission module, which acquires data inside and outside the system and transmits it to the data processing unit; A data processing unit, which processes and analyzes the data in real time to generate a current state description and a performance evaluation result of the system; A control strategy unit, which formulates corresponding control strategies according to the performance evaluation result and a preset optimization goal; A human-machine interaction interface, which easily realizes on-site management and maintenance of equipment through an intuitive graphical interface; A storage unit, and the human-machine interaction interface is arranged on the third box door.

8. A movable energy storage system with a charging gun according to claim 1, characterized in that, The fire protection system includes a fire extinguisher bottle, a fire protection processor and fire protection pipelines. The fire extinguisher bottle is connected to the fire protection pipelines, and the fire protection processor is connected to the fire extinguisher bottle.

9. The movable energy storage system with a charging gun according to claim 1, wherein, The charging pile is composed of a DC charger and a charging connector, and the charging connector is connected to the charging pile breaker.

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