Safe energy storage box adaptive to quick charging system and preparation process thereof

Abstract

The invention discloses a safe energy storage box adaptive to a quick charging system and a preparation process thereof, and relates to the technical field of energy storage boxes, and the safe energy storage box specifically comprises an energy storage box shell which is internally divided into a first cavity, a second cavity and a third cavity from top to bottom; a waterproof and dustproof inner plate, a fast charging part, a heat dissipation part, an energy storage part and a power converter are arranged in the energy storage box shell, the fast charging part comprises a side opening cabinet door, a charging panel, a fast charging plug, a battery protection plate and a short circuit protection part, and the power converter is arranged in the second cavity and connected with the fast charging part; the heat dissipation component comprises heat dissipation fins, a heat dissipation connecting plate, a heat dissipation fan and a heat dissipation supporting frame, the energy storage component is arranged in the third cavity, and the high-efficiency energy-saving LED lamp has remarkable advantages in the aspects of structural design, safety, heat dissipation effect, fast charging efficiency, preparation process and maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage boxes, and in particular to a safety energy storage box adapted to a fast charging system and a preparation process thereof. Background Art

[0002] With the continuous expansion of the electric vehicle market and the increasing demand of consumers for charging speed, fast charging technology has become the key to the development of the new energy vehicle industry. At the same time, the rapid development of renewable energy such as wind power and photovoltaics has also put forward higher requirements for the stability of the power grid and the demand for energy storage systems. Electric vehicle users have increasingly higher requirements for charging speed. Fast charging technology can significantly shorten the charging time and improve user experience. However, fast charging technology has also brought about higher requirements for energy storage systems due to the increase in grid load; in the context of energy Internet construction, the high power and high current of fast charging systems have put forward higher requirements for the safety of energy storage equipment. Safe energy storage boxes need to adopt advanced thermal insulation and fire insulation design as well as electrical protection, thermal management and efficient fire safety systems to ensure stable operation under extreme working conditions. Energy storage equipment is required to have the ability to respond quickly and utilize efficiently, and the temperature of each set point in the box needs to be monitored in real time, and the working state of the air conditioner needs to be adjusted as needed. In summary, a safe energy storage box and its preparation process adapted to the fast charging system are proposed. By optimizing the design and preparation process, the safety, efficiency and cost-effectiveness of the energy storage system are improved, and the sustainable development of the new energy vehicle and renewable energy industries is promoted. Summary of the invention

[0003] The present invention aims to solve the technical problems of energy storage box safety and fast charging system and the energy storage box preparation process at least to a certain extent. To this end, the present invention proposes a safe energy storage box adapted to the fast charging system and its preparation process.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a safe energy storage box adapted to a fast charging system, the safe energy storage box adapted to a fast charging system specifically comprises an energy storage box shell, the energy storage box shell is divided into a first cavity, a second cavity and a third cavity from top to bottom, a waterproof and dustproof inner plate, a fast charging component, a heat dissipation component, an energy storage component and a power converter are arranged in the energy storage box shell, a waterproof and dustproof inner plate is arranged on the inner side of the energy storage box shell, the fast charging component is arranged in the second cavity on the energy storage box shell, the fast charging component comprises a side-opening cabinet door, a charging plate, a fast charging plug, a battery storage The cabinet comprises a protective plate and a short-circuit protection component, the charging plate is connected to the energy storage box shell, the side-opening cabinet door is hinged on the charging plate, a fast charging plug is arranged on the charging plate, the battery protection plate is arranged on the back of the charging plate, the power converter is arranged in the second cavity and connected to the fast charging component, the heat dissipation component includes heat dissipation fins, a heat dissipation connecting plate, a heat dissipation fan and a heat dissipation support frame, the heat dissipation fins are arranged on the back of the battery protection plate, the heat dissipation connecting plate is arranged in the first cavity, the heat dissipation fan is connected to the outside of the heat dissipation connecting plate through the heat dissipation support frame, and the energy storage component is arranged in the third cavity.

[0005] In a preferred embodiment of the present invention, a temperature sensor and a current sensor are arranged on the battery protection board.

[0006] In a preferred embodiment of the present invention, the energy storage component includes an energy storage battery pack, a battery connector, an insulating material, a battery pack shell, a thermistor and a fuse. The energy storage battery pack is arranged in a third cavity through the battery connector, the insulating material is arranged on the battery pack shell, the battery pack shell is arranged on the energy storage battery pack, and the thermistor and the fuse are arranged on the battery pack shell.

[0007] In a preferred embodiment of the present invention, the short-circuit protection component includes a metal oxide semiconductor and a short-circuit protection chip. The metal oxide semiconductor is arranged in the battery protection board and used as a switching element to control the on and off of the charging and discharging circuits according to the instructions of the short-circuit protection chip.

[0008] On the other hand, the present invention provides a preparation process for a safety energy storage box adapted to a fast charging system as described in any one of the above, comprising the following steps:

[0009] S1. Material preparation, the specific steps are:

[0010] Energy storage component materials: prepare energy storage battery packs, battery connectors, insulating materials, battery pack shells, thermistors, and fuses; fast charging component materials: including side-opening cabinet doors, charging plates, fast charging plugs, battery protection boards, metal oxide semiconductors, and short-circuit protection chips; heat dissipation component materials: heat dissipation fins, heat dissipation connecting plates, heat dissipation fans, and heat dissipation support frames; shell materials: select high-strength, corrosion-resistant metal or plastic materials to make the energy storage box shell and waterproof and dustproof inner panels.

[0011] S2, component processing and assembly, the specific steps are:

[0012] S2.1, Energy storage component assembly: Conduct strict quality inspection on the cells in the energy storage battery pack, including parameters such as appearance, internal resistance, capacity, and open circuit voltage; sort the cells according to the inspection results, and combine cells with similar performance into battery packs; fix the cells in the battery pack shell through battery connectors, and install insulating materials, thermal sensors, and fuses on the shell;

[0013] S2.2, fast charging component assembly: fix the fast charging plug on the charging board to ensure a firm connection; install the battery protection board on the back of the charging board and connect the temperature sensor and current sensor; integrate the metal oxide semiconductor and short circuit protection chip into the battery protection board;

[0014] S2.3, heat dissipation component assembly: set the heat dissipation fins on the back of the battery protection plate, install the heat dissipation connecting plate in the first cavity of the energy storage box shell, and connect the heat dissipation fan to the outside of the connecting plate through the heat dissipation support frame;

[0015] S3, energy storage box shell assembly: manufacture the energy storage box shell, and install a waterproof and dustproof inner plate inside the shell; the energy storage box shell is divided into a first cavity, a second cavity and a third cavity from top to bottom, and the energy storage component (including the battery pack) is installed in the third cavity; the fast charging component (including the charging board, fast charging plug, battery protection board, etc.) is installed in the second cavity, and ensure that the side-opening cabinet door is hinged on the charging board; the heat dissipation component (including heat dissipation fins, heat dissipation connection plate, heat dissipation fan, etc.) is installed in the first cavity and the second cavity;

[0016] S4, system integration and testing: install the power converter in the second cavity, connect the fast charging component and the energy storage component, test the charging and discharging performance of the energy storage box, and ensure the normal operation of the fast charging system; simulate extreme conditions such as short circuit, overcurrent, and overtemperature to test whether the safety protection mechanism of the energy storage box is effective; monitor the internal temperature of the energy storage box during charging and discharging to ensure that the heat dissipation system can effectively reduce the temperature;

[0017] S5. Quality control and delivery: Conduct a comprehensive inspection of the finished product to ensure that all parts are installed correctly without damage or looseness, complete packaging and labeling, and pack and ship.

[0018] The beneficial effects of the present invention are as follows: after adopting the above structure, the waterproof and dustproof inner plate on the inner side of the energy storage box shell effectively prevents moisture and dust in the external environment from entering the energy storage box, thereby protecting the internal electronic components from damage; multiple protections are provided, through the temperature sensor and current sensor on the battery protection board, for real-time monitoring of the battery status, to prevent abnormal conditions such as overcharging, over-discharging, and short circuit; thermistors and fuses provide further thermal protection and current overload protection on the battery pack shell; the short-circuit protection component realizes precise short-circuit protection through metal oxide semiconductors and short-circuit protection chips, thereby ensuring system safety; the heat dissipation component quickly dissipates heat The energy storage box is quickly discharged to ensure that the battery maintains a suitable operating temperature during the fast charging process, thereby extending the battery life. The modularly designed energy storage box shell is divided from top to bottom for installing heat dissipation components, fast charging components and energy storage components. The energy storage box is specially designed for the fast charging system and can meet the needs of various fast charging scenarios, such as electric vehicle fast charging stations, mobile energy storage equipment, etc.; in summary, the safe energy storage box adapted to the fast charging system of the present invention and its preparation process have shown significant advantages in safety, heat dissipation efficiency, modular design, fast charging function, preparation process specifications and applicability, and have high practical value and market promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention;

[0020] Figure 2 It is a front view structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the heat dissipation component of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the fast charging component of the present invention;

[0023] In the figure: 1-energy storage box shell, 2-first cavity, 3-second cavity, 4-third cavity, 5-waterproof and dustproof inner plate, 6-power converter, 7-side cabinet door, 8-charging board, 9-fast charging plug, 10-battery protection board, 11-heat dissipation fins, 12-heat dissipation connecting plate, 13-heat dissipation fan, 14-heat dissipation support frame, 15-energy storage battery pack, 16-battery connector, 17-insulating material, 18-battery pack shell, 19-thermistor, 20-fuse, 21-metal oxide semiconductor, 22-short circuit protection chip. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] like Figure 1 - Figure 4As shown, a safety energy storage box adapted to a fast charging system specifically includes an energy storage box shell 1, the energy storage box shell 1 is divided into a first cavity 2, a second cavity 3 and a third cavity 4 from top to bottom, a waterproof and dustproof inner plate 5, a fast charging component, a heat dissipation component, an energy storage component and a power converter 6 are arranged in the energy storage box shell 1, and a waterproof and dustproof inner plate 5 is arranged on the inner side of the energy storage box shell 1. The energy storage box shell 1 serves as the main structure of the entire energy storage box, providing necessary physical protection and support, and is usually made of high-strength, corrosion-resistant and fire-proof materials, metal alloys or special plastics to ensure durability and safety in harsh environments; the waterproof and dustproof inner plate 5 enhances the waterproof and dustproof ability of the interior of the energy storage box, and protects the internal electrical components from damage by external environmental factors. A material with good sealing performance is used, and a sealing structure sealing strip or sealant is used in combination; the fast charging component is arranged in the second cavity 2 on the energy storage box shell 1, and the fast charging component includes a side-opening cabinet door 7, a charging board 8, a fast charging plug 9, a battery protection board 10 and a short-circuit protection component. The charging board 8 is connected to the energy storage box shell 1, and the side-opening cabinet door 7 is hinged on the charging board 8. A fast charging plug 9 is arranged on the charging board 8, and the battery protection board 10 is arranged on the back of the charging board 8. The power converter 6 is arranged in the second cavity 3 and connected to the fast charging component. The power converter 6 converts the external input electric energy into a voltage and current suitable for the energy storage battery pack, and supports efficient electric energy conversion in the fast charging mode. As a bridge between the fast charging system and the energy storage component, the side-opening cabinet door 7 on the fast charging component facilitates the access and maintenance of the fast charging plug 9, while maintaining the overall beauty and compactness of the box; the charging board 8 serves as a support platform for the fast charging component, and is integrated with interfaces such as the fast charging plug 9 to achieve connection with an external charging device; The fast charging plug 9 supports the fast charging protocol and can efficiently charge the energy storage component; the battery protection board 10 monitors the battery status and protects the battery from damage such as overcharging, over-discharging, and short circuit; when the short-circuit protection component detects an abnormal situation such as a short circuit, it quickly cuts off the circuit to prevent accidents; the heat dissipation component includes a heat dissipation fin 11, a heat dissipation connecting plate 12, a heat dissipation fan 13 and a heat dissipation support frame 14, the heat dissipation fin 11 is arranged on the back of the battery protection board 10, the heat dissipation connecting plate 12 is arranged in the first cavity 2, the heat dissipation fan 13 is connected to the outside of the heat dissipation connecting plate 12 through the heat dissipation support frame 14, and the energy storage component is arranged in the third cavity 4. The heat dissipation fins 11 on the heat dissipation component increase the heat dissipation area, improve the heat dissipation efficiency, and ensure that the heat generated during fast charging and energy storage can be dissipated in time; the heat dissipation connecting plate 12, the heat dissipation fan 13, and the heat dissipation support frame 14 together constitute a heat dissipation system, which discharges heat from the outside of the energy storage box by forced convection to keep the internal temperature stable.

[0026] like Figure 4As shown, a temperature sensor and a current sensor are arranged on the battery protection board 10; the temperature sensor can measure the temperature of the battery in real time to ensure that the battery operates within a suitable operating temperature range; the operating temperature of the lithium battery is generally between -20°C and 60°C, and the suitable temperature is 15°C to 35°C. Too high or too low temperature will have an adverse effect on the performance and life of the battery; when the battery temperature is too high, the temperature sensor will quickly turn off the signal transmission control switch to stop the charging or discharging of the battery, thereby preventing the battery from melting, burning, and other dangerous situations due to overheating. By monitoring the battery temperature, the temperature sensor helps to maintain the battery within the optimal operating temperature range, reduce the impact of temperature fluctuations on the battery life, and thus extend the overall service life of the battery; the current sensor is used to accurately measure the charging and discharging current of the battery to ensure that the battery operates within a safe range. When the battery current exceeds the set threshold, the current sensor will turn off the signal transmission switch to stop the charging or discharging of the battery, thereby preventing the battery from being damaged due to overcurrent.

[0027] like Figure 1 As shown, the energy storage component includes an energy storage battery pack 15, a battery connector 16, an insulating material 17, a battery pack shell 18, a thermistor 19 and a fuse 20. The energy storage battery pack 15 is arranged in the third cavity 4 through the battery connector 16, the insulating material 17 is arranged on the battery pack shell 18, the battery pack shell 18 is arranged on the energy storage battery pack 15, and the thermistor 19 and the fuse 20 are arranged on the battery pack shell 18; the energy storage battery pack 15 on the energy storage component provides the main source of energy, which is usually composed of a plurality of single cells connected in series or in parallel; the battery connector 16 is used to connect the single cells to form a battery pack, while ensuring the stable transmission of current; the insulating material 17 prevents the battery pack from direct contact with other metal parts to avoid the risk of short circuit; the battery pack shell 18 protects the battery pack from physical damage and external environmental influences; the thermistor 19 monitors the temperature of the battery pack and works with the heat dissipation system to prevent overheating; the fuse 20 automatically cuts off the circuit in extreme cases of short circuit and overcurrent to protect the battery pack and the entire system.

[0028] like Figure 4As shown, the short-circuit protection component includes a metal oxide semiconductor 21 and a short-circuit protection chip 22. The metal oxide semiconductor 21 is set in the battery protection board 10 as a switch element, and controls the on and off of the charging and discharging circuits according to the instructions of the short-circuit protection chip 22. In practice, the metal oxide semiconductor 21 plays the role of a switch element in the battery protection board 10, and its on and off states directly control the charging and discharging circuits of the battery. When it is on, the battery can be charged or discharged normally; when it is off, the charging or discharging circuit is cut off, thereby preventing the battery from being further damaged, and it has a fast switching speed, which enables it to respond quickly when a short circuit is detected, cut off the circuit, thereby effectively preventing the short-circuit current from damaging the battery and the system; the short-circuit protection chip 22 is responsible for real-time monitoring of the current, voltage and other parameters of the battery system to determine whether a short circuit has occurred. Once a short-circuit signal is detected, the chip will immediately start the protection mechanism; after detecting a short circuit, the short-circuit protection chip 22 will send a control instruction to the metal oxide semiconductor 21, so that it quickly changes from the on state to the off state, thereby cutting off the charging or discharging circuit of the battery. To ensure the safety of the battery and the system, the short-circuit protection chip 2 can also be loaded with intelligent protection functions, such as overcurrent protection, overvoltage protection, undervoltage protection, etc., to further improve the safety and reliability of the battery system.

[0029] On the other hand, the present invention provides a preparation process for a safety energy storage box adapted to a fast charging system as described in any one of the above, comprising the following steps:

[0030] S1. Material preparation, the specific steps are:

[0031] Energy storage component materials: prepare energy storage battery pack 15, battery connector 16, insulating material 17, battery pack shell 18, thermistor 19, fuse 20; fast charging component materials: including side-opening cabinet door 7, charging plate 8, fast charging plug 9, battery protection board 10, metal oxide semiconductor 21 and short-circuit protection chip 22; heat dissipation component materials: heat dissipation fins 11, heat dissipation connecting plate 12, heat dissipation fan 13, heat dissipation support frame 14; Shell material: select metal or plastic materials with high strength and corrosion resistance to make the energy storage box shell 1 and waterproof and dustproof inner plate 5.

[0032] S2, component processing and assembly, the specific steps are:

[0033] S2.1, Energy storage component assembly: Conduct strict quality inspection on the cells in the energy storage battery pack 15, including parameters such as appearance, internal resistance, capacity, and open circuit voltage; sort the cells according to the inspection results, and combine cells with similar performance into a battery pack; fix the cells in the battery pack shell 18 through the battery connector 16, and install the insulating material 17, thermistor 19 and fuse 20 on the shell;

[0034] S2.2, fast charging component assembly: fix the fast charging plug 9 on the charging board 8 to ensure a firm connection; install the battery protection board 10 on the back of the charging board 8 and connect the temperature sensor and the current sensor; integrate the metal oxide semiconductor 21 and the short circuit protection chip 22 into the battery protection board 10;

[0035] S2.3, heat dissipation component assembly: set the heat dissipation fin 11 on the back of the battery protection plate 10, install the heat dissipation connecting plate 12 in the first cavity 2 of the energy storage box housing 1, and connect the heat dissipation fan 13 to the outside of the heat dissipation connecting plate 12 through the heat dissipation support frame 14;

[0036] S3, energy storage box housing assembly: manufacture the energy storage box housing 1 according to the design drawings, and install the waterproof and dustproof inner plate 5 inside the housing; the energy storage box housing is divided into a first cavity 2, a second cavity 3 and a third cavity 4 from top to bottom, and the energy storage component is installed in the third cavity 2; the fast charging component is installed in the second cavity 3, and ensure that the side-opening cabinet door 7 is hinged on the charging plate 8; install the heat dissipation component in the first cavity 2 and the second cavity 3;

[0037] S4, system integration and testing: install the power converter 6 in the second cavity 3, and connect the fast charging component and the energy storage component, test the charging and discharging performance of the energy storage box, and ensure the normal operation of the fast charging system; simulate extreme conditions such as short circuit, overcurrent, and overtemperature to test whether the safety protection mechanism of the energy storage box is effective; monitor the internal temperature of the energy storage box during charging and discharging to ensure that the heat dissipation system can effectively reduce the temperature.

[0038] S5. Quality control and delivery: Conduct a comprehensive inspection of the finished product to ensure that all parts are installed correctly without damage or looseness, complete packaging and labeling, and pack and ship.

[0039] Energy storage component material preparation: Energy storage battery pack 15 selects suitable lithium-ion battery types such as ternary lithium, lithium iron phosphate, etc.; Battery connector 16 uses copper or nickel materials with low resistance and high conductivity to ensure stable connection and reduce energy loss; Insulation material 17 uses insulation materials with excellent high temperature resistance and flame retardant properties, such as silicone, glass fiber cloth, etc.; Battery pack shell 18 is made of high-strength, corrosion-resistant aluminum alloy or composite materials, customized shell materials and processed by cutting, bending, welding, etc. to form a complete battery pack shell; Thermistor 19 uses high-precision thermistors or thermocouples; Fuse 20 uses fast-response, low-impedance silver alloy materials. Fast charging component material preparation: Side-opening cabinet door 7 is made of high-strength, lightweight alloy materials; Charging board 8 The core components of the charging board use high-power density IGBT modules and other electronic components; Fast charging plug 9 is made of copper alloy materials with excellent conductivity; Battery protection board 10, metal oxide semiconductor 21 and short-circuit protection chip 22 are installed in the fast charging system, and corresponding connections and debugging are performed. Preparation of heat dissipation components: The heat dissipation fins 11 are made of aluminum alloy with high thermal conductivity; the heat dissipation connecting plate 12 is made of copper alloy with low thermal resistance and high strength; the heat dissipation fan 13 is made of high-efficiency, low-noise axial flow fan, and the heat dissipation support frame 14 is made of sturdy and durable metal material. Preparation of shell materials: The energy storage box shell 1 and the waterproof and dustproof inner plate 5 are made of metal or plastic with high strength and corrosion resistance.

[0040] For the quality inspection of battery cells, each battery cell in the energy storage battery pack 15 is subject to a strict quality inspection process, which includes but is not limited to appearance inspection for scratches and deformation, internal resistance testing to ensure that the internal resistance difference between the battery cells is within an acceptable range, capacity testing to verify the actual capacity of the battery cell through charge and discharge cycles, and open circuit voltage measurement to evaluate the initial voltage stability of the battery cell; based on the above test results, the battery cells with similar performance are classified by automated or manual methods to ensure that the battery cells in the same battery pack have similar electrical characteristics and service life. Subsequently, the sorted battery cells are fixed inside the battery pack shell 18 through precise battery connectors 16 such as copper foil, nickel strips, etc. to form a stable battery pack structure. On the battery pack shell, insulating material 17 is installed to prevent short circuits, and thermistors 19 and fuses 20 are installed as overheating and overcurrent protection mechanisms.

[0041] Fast charging component assembly: The fast charging plug 9 is firmly fixed to the charging board 8 by high-strength screws or welding to ensure that the connection is not loose and can withstand the mechanical stress and electrical shock during the charging process. On the back of the charging board 8, the battery protection board 10 is accurately installed, and the temperature sensor and current sensor are connected to the battery protection board to monitor the battery status in real time and prevent abnormal conditions such as overcharging, over-discharging, and short circuit; the metal oxide semiconductor 21 and the short-circuit protection chip 22 are integrated into the battery protection board 10 to improve the safety and response speed of the system. The chips will work together to ensure the safe and stable operation of the battery during the fast charging process.

[0042] Construction of cooling system: In view of the heat that may be generated on the back of the battery protection plate 10, heat dissipation fins 11 are arranged to increase the heat dissipation area. The design of the fins needs to take into account air circulation and heat dissipation efficiency. In the first cavity 2 of the energy storage box shell 1, a heat dissipation connecting plate 12 is installed. As the core component of the heat dissipation system, the plate is responsible for directing heat to the outside. The heat dissipation fan 13 is precisely connected to the outside of the heat dissipation connecting plate 12 through the heat dissipation support frame 14 to ensure that the fan can effectively inhale cold air and take away heat through the heat dissipation fins. After all components are assembled, the system is debugged and tested, including heat dissipation performance test, fast charging efficiency verification, and battery pack safety performance evaluation.

[0043] Energy storage box shell assembly and internal layout optimization: Aluminum alloy or ABS plastic with high strength and corrosion resistance is selected, and precise processing is performed to ensure that the size, shape and interface position of the shell meet the design requirements. At the same time, the surface quality of the material is checked to avoid defects such as cracks and scratches, and to ensure that the various components of the shell can fit closely to improve the stability and sealing of the overall structure. On the inside of the energy storage box shell, ensure that the waterproof and dustproof inner plate 5 fits tightly with the shell without any gaps. The energy storage box shell is divided from top to bottom into the first cavity 2, the second cavity 3 and the third cavity 4. The cavities are separated by partitions or brackets to ensure that they are independent and do not interfere with each other. The size, weight and heat dissipation requirements of each component are fully divided to ensure that each cavity has enough space to accommodate the corresponding components and facilitate subsequent installation, maintenance and overhaul. Energy storage components such as energy storage battery pack 15, battery connector 16, insulating material 17, thermistor 19 and fuse 20 are installed in the third cavity 2. This cavity is the core area of ​​the energy storage system to ensure that the connection is firm and reliable and the electrical performance is good. At the same time, arrange the insulating materials reasonably to prevent short circuits or electric shock accidents between electrical components. Install the fast charging component in the second cavity 3. This cavity needs to be convenient for users to perform fast charging operations and have a high level of safety protection. Pay attention to the hinge method of the side door 7 and the charging plate 8, ensure that the door opens flexibly and closes tightly, and check the fixing method and electrical connection of the fast charging component. Install the heat dissipation component in the first cavity 2 and the second cavity 3, adjust the wind direction and air volume distribution of the heat dissipation fan, and ensure that the heat can be quickly discharged from the outside of the box.

[0044] System integration and comprehensive testing: accurately install the power converter 6 in the second cavity 3, pay attention to the wiring mode and electrical connection of the power converter 6, check whether the input and output interfaces of the power converter 6 match the fast charging component and the energy storage component to avoid interface incompatibility, use high-quality electrical connectors and cables to connect the fast charging component and the energy storage component, ensure that there are no electrical faults such as short circuit and open circuit during the connection process, pay attention to the transmission and synchronization of electrical signals, ensure that the fast charging component can accurately receive the status information of the energy storage component, and perform charging or discharging operations; connect the external power supply and load equipment to test the charging and discharging performance of the energy storage box. During the test, record the key indicators of the energy storage box such as charging speed, discharge capacity, and energy conversion efficiency, simulate extreme conditions such as short circuit, overcurrent, and overtemperature, and conduct a comprehensive test of the safety protection mechanism of the energy storage box. By artificially setting fault points or using professional testing equipment to simulate abnormal conditions, observe whether the energy storage box can respond quickly and start the corresponding protection mechanism. During the charging and discharging process, use temperature sensors and data recording equipment to monitor the internal temperature of the energy storage box in real time. Record the changes in the internal temperature of the energy storage box under different working conditions, and compare and analyze it with the heat dissipation effect of the heat dissipation system. Ensure that the heat dissipation system can effectively reduce the internal temperature of the energy storage box to prevent performance degradation or failure caused by excessive temperature; conduct timely inspections and repairs.

[0045] Quality control process: Check the finished product, including but not limited to appearance inspection to confirm that there are no scratches, stains, color difference, etc. on the surface, functional testing to ensure that all functional buttons, switches, interfaces, etc. can work properly, and performance verification to test whether the technical parameters of the product meet the standards, such as voltage, current, power, and durability, through professional equipment. The installation of each component uses special tools or equipment to check whether the screws, connectors, etc. are tightened in place without omissions or misinstallation. At the same time, check whether the internal wiring is neat and standardized to avoid safety hazards such as short circuits and open circuits. After completing packaging and labeling, pack and ship according to requirements.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A safety energy storage box adapted to a fast charging system and a preparation process thereof, the safety energy storage box adapted to a fast charging system specifically comprising an energy storage box shell, the energy storage box shell is divided into a first cavity, a second cavity and a third cavity from top to bottom, the energy storage box shell is provided with a waterproof and dustproof inner plate, a fast charging component, a heat dissipation component, an energy storage component and a power converter, characterized in that: A waterproof and dustproof inner plate is arranged on the inner side of the energy storage box shell, the fast charging component is arranged in the second cavity on the energy storage box shell, the fast charging component includes a side-opening cabinet door, a charging plate, a fast charging plug, a battery protection plate and a short-circuit protection component, the charging plate is connected to the energy storage box shell, the side-opening cabinet door is hinged on the charging plate, a fast charging plug is arranged on the charging plate, the battery protection plate is arranged on the back of the charging plate, the power converter is arranged in the second cavity and connected to the fast charging component, the heat dissipation component includes heat dissipation fins, a heat dissipation connecting plate, a heat dissipation fan and a heat dissipation support frame, the heat dissipation fins are arranged on the back of the battery protection plate, the heat dissipation connecting plate is arranged in the first cavity, the heat dissipation fan is connected to the outside of the heat dissipation connecting plate through the heat dissipation support frame, and the energy storage component is arranged in the third cavity.

2. According to claim 1, a safety energy storage box adapted to a fast charging system is characterized in that: The battery protection board is provided with a temperature sensor and a current sensor.

3. According to claim 1, a safety energy storage box adapted to a fast charging system is characterized in that: The energy storage component includes an energy storage battery pack, a battery connector, an insulating material, a battery pack shell, a thermistor and a fuse. The energy storage battery pack is arranged in a third cavity through the battery connector, the insulating material is arranged on the battery pack shell, the battery pack shell is arranged on the energy storage battery pack, and the thermistor and the fuse are arranged on the battery pack shell.

4. According to claim 1, a safety energy storage box adapted to a fast charging system is characterized in that: The short-circuit protection component includes a metal oxide semiconductor and a short-circuit protection chip. The metal oxide semiconductor is arranged in the battery protection board and used as a switching element to control the on and off of the charging and discharging circuits according to the instructions of the short-circuit protection chip.

5. The preparation process of the safety energy storage box adapted to the fast charging system according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Material preparation, the specific steps are: Energy component materials: prepare energy storage battery packs, battery connectors, insulating materials, battery pack shells, thermistors, and fuses; fast charging component materials: including side-opening cabinet doors, charging boards, fast charging plugs, battery protection boards, metal oxide semiconductors, and short-circuit protection chips; heat dissipation component materials: heat dissipation fins, heat dissipation connection boards, heat dissipation fans, and heat dissipation support frames; shell materials: select high-strength, corrosion-resistant metal or plastic materials to make energy storage box shells and waterproof and dustproof inner panels; S2, component processing and assembly, the specific steps are: S2.1, Energy storage component assembly: Conduct strict quality inspection on the cells in the energy storage battery pack, including parameters such as appearance, internal resistance, capacity, and open circuit voltage; sort the cells according to the inspection results, and combine cells with similar performance into battery packs; fix the cells in the battery pack shell through battery connectors, and install insulating materials, thermal sensors, and fuses on the shell; S2.2, fast charging component assembly: fix the fast charging plug on the charging board to ensure a firm connection; install the battery protection board on the back of the charging board and connect the temperature sensor and current sensor; integrate the metal oxide semiconductor and short circuit protection chip into the battery protection board; S2.3, heat dissipation component assembly: set the heat dissipation fins on the back of the battery protection plate, install the heat dissipation connection plate in the first cavity of the energy storage box shell, and connect the heat dissipation fan to the outside of the heat dissipation connection plate through the heat dissipation support frame; S3, energy storage box shell assembly: manufacture the energy storage box shell, and install a waterproof and dustproof inner plate inside the shell; the energy storage box shell is divided into a first cavity, a second cavity and a third cavity from top to bottom, and the energy storage component is installed in the third cavity; the fast charging component is installed in the second cavity, and the side-opening cabinet door is hinged on the charging board; the heat dissipation component is installed in the first cavity and the second cavity; S4, system integration and testing: install the power converter in the second cavity, connect the fast charging component and the energy storage component, test the charging and discharging performance of the energy storage box, and ensure the normal operation of the fast charging system; simulate extreme conditions such as short circuit, overcurrent, and overtemperature to test whether the safety protection mechanism of the energy storage box is effective; monitor the internal temperature of the energy storage box during charging and discharging to ensure that the heat dissipation system can effectively reduce the temperature; S5. Quality control and delivery: Conduct a comprehensive inspection of the finished product to ensure that all parts are installed correctly without damage or looseness, complete packaging and labeling, and pack and ship.

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