Efficient modularized lithium battery energy storage management system

Abstract

The invention relates to the technical field of energy storage, and provides an efficient modular lithium battery energy storage management system, which comprises a server, lithium batteries, a partition loading module, a battery management module, a state evaluation module and an early warning control module, and is characterized in that the partition loading module is used for detachably loading at least one lithium battery; the state evaluation module collects state data of at least one lithium battery in the partition loading module and evaluates the state of the at least one lithium battery according to the state data to form an evaluation result, and the battery management module triggers the management decision of the at least one lithium battery according to the evaluation result. And the early warning control module performs partition management on the at least one lithium battery according to the management decision. Through mutual cooperation of the partition loading module and the state evaluation module, it is guaranteed that the whole system has the advantages of being high in partition management capacity, high in state evaluation accuracy, agile in fault recognition and remarkable in energy efficiency optimization.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to a high-efficiency modular lithium battery energy storage management system. Background Art

[0002] Existing lithium battery energy storage systems usually adopt centralized management methods, which have problems such as poor scalability, insufficient flexibility, and complex maintenance. They cannot adapt to changing energy demands and diverse application scenarios.

[0003] For example, Chinese patent CN117458070A discloses an energy storage system based on a modular design of lithium batteries. Although it solves the problem of convenient assembly and disassembly through a fixing mechanism, it ignores the problems of heat dissipation and monitoring management caused by the energy storage process, which can easily lead to a decrease in the energy storage management capacity of the lithium battery and cause safety problems.

[0004] The prior art still has the following problems:

[0005] 1. Traditional lithium battery energy storage systems usually adopt a centralized management architecture, where all battery cells are managed under a centralized battery management system (BMS). This design has obvious limitations in system scalability. When the energy storage capacity needs to be increased, the entire system often needs to be complexly upgraded and adjusted, which not only increases the cost, but also increases the complexity of system design.

[0006] 2. Traditional energy storage systems usually require a lot of customized design when dealing with different application scenarios, which not only increases the complexity of system design and implementation, but also limits the adaptability of the system in different scenarios. Especially in an environment with variable power demand, the response speed and adjustment ability of traditional systems are often difficult to meet the requirements.

[0007] 3. In traditional centralized energy storage systems, the failure of any battery unit may affect the normal operation of the entire system. Maintenance operations usually require the system to be shut down, which increases the difficulty of maintenance and downtime. In addition, centralized systems also have deficiencies in heat dissipation and fault-tolerant design, which can easily lead to system overheating or fault propagation, affecting the safety and life of the system.

[0008] 4. Traditional energy storage systems often lack sophisticated control and management methods for battery management, resulting in the battery not always being able to maintain its optimal state during the charging and discharging process. This not only reduces the overall efficiency of the system, but also shortens the battery life.

[0009] The present invention is made to solve the common problems in the field, such as poor energy storage management, weak expansion capability, insufficient flexibility, insufficient reliability and safety, weak refined management level, low intelligence, and inability to evaluate and monitor the status of lithium batteries. Summary of the invention

[0010] The purpose of the present invention is to propose a high-efficiency modular lithium battery energy storage management system in view of the current deficiencies.

[0011] In order to overcome the shortcomings of the prior art, the present invention adopts the following technical solutions:

[0012] A high-efficiency modular lithium battery energy storage management system, the modular lithium battery energy storage management system includes a server and a lithium battery, the modular lithium battery energy storage management system also includes a partition loading module, a battery management module, a state evaluation module, and an early warning control module, the server is respectively connected to the partition loading module, the battery management module, the state evaluation module, and the early warning control module;

[0013] The partition loading module is used for detachable loading of at least one lithium battery, the status evaluation module collects status data of at least one lithium battery in the partition loading module, and evaluates the status of at least one lithium battery according to the status data to form an evaluation result, the battery management module triggers a management decision for at least one lithium battery according to the evaluation result, and the early warning control module performs partition management on at least one lithium battery according to the management decision;

[0014] The partition loading module includes a storage cabinet, a partition loading unit, and a loading sensing unit. The storage cabinet is provided with at least one independent loading cavity with an opening at one end. The partition loading unit and the loading sensing unit are both arranged in the loading cavity of the storage cabinet. The partition loading unit is provided for at least one lithium battery to be detachably and independently loaded to form a separate battery partition. The loading sensing unit senses at least one lithium battery loaded in the partition loading unit to activate the state evaluation module to evaluate the battery partition.

[0015] The evaluation module, the battery management module and the early warning control module independently control and manage the activated battery partitions.

[0016] Optionally, the partitioned loading unit includes a loading pallet, a push-pull rail, a power supply component, and a locking component. The push-pull rail is symmetrically arranged on both side walls of at least one of the loading cavities. The loading pallet is slidably connected to the push-pull rail. The locking component is connected to the loading pallet and locks the loading pallet to limit the movement of the loading pallet. The power supply component is connected to the port of the lithium battery loaded in the loading cavity to form a lithium battery energy storage unit.

[0017] Optionally, the loading sensing unit includes a sensing component and a magnetic component, the magnetic component is used to adsorb the loading pallet to limit the movement of the loading pallet, and the sensing component senses the position of the loading pallet and the lithium battery installed on the loading pallet to determine the position of the loading pallet and the presence of the lithium battery on the loading pallet.

[0018] Optionally, the state evaluation module includes a data acquisition unit and an evaluation unit, the data acquisition unit respectively acquires state data of the lithium batteries in the battery partitions, and the evaluation unit performs state evaluation on the lithium batteries in each of the battery partitions according to the state data to form an evaluation result;

[0019] Among them, the data acquisition unit includes a voltage sensor, a current sensor, a temperature sensor, a data storage device, and an analog-to-digital converter. The voltage sensor and the current sensor are both arranged in the power supply component, and monitor the voltage level of the lithium battery in the battery partition in real time. The current sensor monitors the charging and discharging current of the lithium battery. The temperature sensor collects temperature data stored in the lithium battery in the battery partition. The analog-to-digital converter converts the current data collected by the current sensor and the voltage data collected by the voltage sensor. The data storage device stores the temperature data collected by the temperature sensor, as well as the converted voltage data and current data.

[0020] Optionally, the evaluation unit acquires the state data collected by the data collection unit, and calculates the state index CrisisIndexi of the i-th battery partition according to the following formula:

[0021]

[0022] Where V i is the actual voltage of the lithium battery in the ith battery partition, I i is the actual current of the lithium battery in the ith battery partition, T i is the actual temperature of the lithium battery in the ith battery partition, V ref is the ideal voltage value, I ref is the ideal current value, T ref is the ideal temperature value, ΔV max is the maximum allowable voltage deviation, ΔI max is the maximum allowable current deviation, ΔT max is the maximum temperature deviation allowed, f(C) is a function related to battery aging;

[0023] The evaluation unit calculates the average state index of all partitions and the difference △CrisisIndexi of the state index CrisisIndexi of the i-th battery partition, when |ΔCrisisIndex i | is greater than the status monitoring threshold Monitor set by the system, a secondary evaluation is required for the status of the i-th battery partition. If the secondary evaluation determines that there is an abnormality in the i-th battery partition, the battery management module is triggered to make a management decision for the battery partition.

[0024] Optionally, the battery management module executes management decisions according to the following steps:

[0025] S1. Obtain the evaluation results;

[0026] S2, judging the battery partition status;

[0027] S3. Triggering management decisions:

[0028] The management decision includes: managing the charge and discharge current, managing voltage balancing, managing the temperature in the battery partition, and isolating and protecting the battery partition;

[0029] S4, trigger feedback and alarm operation;

[0030] The feedback and alarm operations include: when any partition is marked as abnormal and triggers a management decision, the system will record relevant data and send out an alarm signal to remind the user to perform maintenance and inspection.

[0031] Optionally, the early warning control module includes an isolation control unit, a temperature control management unit, an alarm notification unit and a feedback unit.

[0032] After receiving the management decision of the battery management module, the isolation control unit quickly cuts off the power supply of the abnormal partition. The temperature control management unit monitors the temperature status within the partition in real time, and starts heat dissipation measures after receiving the management decision of the battery management module or detecting an abnormality. The alarm notification unit is used to provide early warning prompts to the user, and the feedback unit is used to record all data during the abnormality detection and processing process.

[0033] Optionally, the sensing component includes a sensing probe and a sensing seat, the sensing seat is arranged on a side of the loading pallet facing the loading cavity, and the sensing probe and the sensing seat are arranged relative to each other in a moving path, so that after the loading pallet is transferred and pushed to the end of the push-pull track, the sensing probe and the sensing seat sense each other;

[0034] Wherein, after the sensing probe and the sensing base are close to each other and in positive contact, the state evaluation module is activated to perform evaluation.

[0035] Optionally, the magnetic attraction component includes at least one magnetic attraction seat and at least one magnetic attraction member, the at least one magnetic attraction seat is arranged on the loading tray away from the opening side and is evenly spaced along the length direction of the inner side wall of the loading tray, and the at least one magnetic attraction member is arranged on the inner wall of the loading cavity and is arranged opposite to the at least one magnetic attraction seat, so that the at least one magnetic attraction seat and the at least one magnetic attraction member are mutually attracted;

[0036] Among them, at least one magnetic seat and at least one magnetic element are used in cooperation with each other to limit the loading tray.

[0037] Optionally, the locking component includes a locking frame, a locking press piece, and a locking groove, the locking frame is arranged on the edge of the upper end surface of the loading tray to form a placement portion for placing the lithium battery, the locking press piece is U-shaped, and the middle part of the locking press piece is connected to the locking frame, and the two ends of the locking press piece are suspended and extended, and are detachably engaged with the locking groove.

[0038] The beneficial effects achieved by the present invention are:

[0039] 1. Through the cooperation between the partition loading module and the status evaluation module, the partition storage status of the lithium battery can be monitored and accurately evaluated in real time, ensuring that the entire system has the advantages of strong partition management capability, high status evaluation accuracy, quick fault identification, and significant energy efficiency optimization;

[0040] 2. Through the cooperation between the evaluation module and the battery management module, the state of the battery can be monitored and evaluated, and flexible management decisions can be made on the evaluated state, ensuring that the entire system has the advantages of strong monitoring and evaluation capabilities, high intelligence, high convenience of storage expansion, reliable refined monitoring measures, and good safety protection evaluation methods;

[0041] 3. Through the cooperation between the battery management module and the partition loading module, the energy distribution and storage efficiency of the lithium battery are optimized, ensuring that the entire system has the advantages of high energy storage efficiency, maximum resource utilization, strong system stability, and good automatic adjustment capability;

[0042] 4. Through the cooperation of the battery management module, the status evaluation module and the early warning control module, the health status of the lithium battery can be comprehensively evaluated and intervened in time, ensuring that the entire system has the advantages of extended battery life, strong fault prevention capability, high intelligent diagnosis accuracy and good operation safety;

[0043] 5. Through the cooperation between the battery management module and the early warning and control module, the storage process of the lithium battery can be monitored and managed, ensuring that the entire system has the advantages of strong energy storage management level, good reliability and safety, strong refined management ability, high intelligence and reliable evaluation means;

[0044] 6 Through the mutual cooperation of the partition loading module, the battery management module, the state evaluation module, and the early warning control module, the overall operation process of the lithium battery can be fully managed and controlled, ensuring that the entire system has the advantages of strong partition independence, high management flexibility, good system stability and fine energy efficiency management. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate the same parts.

[0046] Figure 1 It is an overall block diagram of the present invention.

[0047] Figure 2 It is a block diagram of the partition loading unit, lithium battery and loading sensing unit of the present invention.

[0048] Figure 3 It is a block diagram of the power supply component, isolation control unit and battery management module of the present invention.

[0049] Figure 4 It is a schematic diagram of the evaluation process of the evaluation unit of the present invention.

[0050] Figure 5 It is a front view schematic diagram of the storage cabinet of the present invention.

[0051] Figure 6 It is a schematic top view of the storage cabinet of the present invention.

[0052] Figure 7 It is a left side schematic diagram of the storage cabinet of the present invention.

[0053] Figure 8 It is a schematic right view of the storage cabinet of the present invention.

[0054] Fig. 9 for Figure 6 Schematic cross-sectional view at AA in the middle.

[0055] Fig.10 for Fig. 9 The enlarged schematic diagram of point B in FIG.

[0056] Fig.11 It is a schematic structural diagram of the locking component, lithium battery and loading tray of the present invention.

[0057] Fig.12 It is a partial structural schematic diagram of the locking component, loading chamber, and liquid cooling component of the present invention.

[0058] Fig.13 It is a schematic structural diagram of the locking component and the loading chamber of the present invention.

[0059] Explanation of the reference numerals: 1. storage cabinet; 2. radiator; 3. liquid cooling pipe; 4. discharge pipe; 5. manual control button; 6. on-off control valve; 7. storage tank; 8. liquid outlet pipe; 9. electronic flow valve; 10. liquid storage tank; 11. power supply connection socket; 12. charging circuit; 13. lithium battery; 14. loading tray; 15. magnetic seat; 16. push-pull track; 17. locking press piece; 18. protrusion; 19. locking frame; 20. circulating pump; 21. isolating switch; 22. loading chamber; 23. locking groove; 24. magnetic part; 25. charging interface; 26. power supply circuit. DETAILED DESCRIPTION

[0060] The following is an explanation of the embodiments of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual sizes. It is stated in advance. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0061] Embodiment 1: According to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, this embodiment provides a high-efficiency modular lithium battery energy storage management system, which includes a server and a lithium battery 13. The modular lithium battery energy storage management system also includes a partition loading module, a battery management module, a state evaluation module, and an early warning control module. The server is connected to the partition loading module, the battery management module, the state evaluation module, and the early warning control module respectively, and the intermediate data and process data of the partition loading module, the battery management module, the state evaluation module, and the early warning control module are stored in the database of the server;

[0062] The partition loading module is provided for detachable loading of at least one lithium battery 13, the state evaluation module collects state data of at least one lithium battery 13 in the partition loading module, and evaluates the state of at least one lithium battery 13 according to the state data to form an evaluation result, the battery management module triggers a management decision for at least one lithium battery 13 according to the evaluation result, and the early warning control module performs partition management on at least one lithium battery 13 according to the management decision;

[0063] The modular lithium battery energy storage management system also includes a central processor, which controls the connection of the partition loading module, the battery management module, the state evaluation module, and the early warning control module, and centrally controls the partition loading module, the battery management module, the state evaluation module, and the early warning control module based on the central processor, and stores the control data of the central processor in the database of the server to improve the accuracy and reliability of the entire system for lithium battery 13 energy storage;

[0064] The partition loading module includes a storage cabinet 1, a partition loading unit, and a loading sensing unit. The storage cabinet 1 is provided with at least one independent loading cavity 22 with an opening at one end. The partition loading unit and the loading sensing unit are both arranged in the loading cavity 22 of the storage cabinet 1. The partition loading unit is provided for at least one lithium battery 13 to be detachably and independently loaded to form a separate battery partition. The loading sensing unit senses at least one lithium battery 13 loaded in the partition loading unit to activate the state evaluation module to evaluate the battery partition.

[0065] Wherein, the evaluation module, the battery management module and the early warning control module independently control and manage the activated battery partitions;

[0066] Optionally, the partition loading unit includes a loading pallet 14, a push-pull track 16, a power supply component, and a locking component, wherein the push-pull track 16 is symmetrically arranged on the side walls of at least one of the loading chambers 22, the loading pallet 14 is slidably connected to the push-pull track 16, the locking component is connected to the loading pallet 14 and locks the loading pallet 14 to limit the movement of the loading pallet 14, and the power supply component is connected to the port of the lithium battery 13 loaded in the loading chamber 22 to form a lithium battery energy storage unit;

[0067] In this embodiment, the push-pull rails 16 are arranged on both sides of the loading pallet 14, so that the loading pallet 14 can slide along the direction of the push-pull rails 16;

[0068] The push-pull track 16 is arranged in a direction parallel to the opening direction of the loading cavity 22, so that the loading pallet 14 can be pushed and pulled along the opening direction;

[0069] like Fig.10 As shown, the power supply component includes a power supply connection seat 11, a power supply line 26, a charging line 12, a charging interface 25, an isolating switch 21, and an isolating controller. The power supply connection seat 11 is arranged on the inner top wall of the isolation cavity. One end of the power supply line 26 is connected to the input end of the isolating switch 21, and the other end of the power supply line 26 is connected to the charging interface 25. The output end of the isolating switch 21 is connected to the power supply connection seat 11 through a connecting wire, one end of the charging line 12 is connected to the power supply connection seat 11, and the other end of the charging line 12 is detachably connected to the battery port of the lithium battery 13. The isolating controller is electrically connected to the isolating switch 21 to control the on and off of the isolating switch 21.

[0070] At the same time, the charging circuit 12 also includes two connecting wires of different polarities, and one end of the two connecting wires of different polarities is detachably connected to the port (including the positive electrode and the negative electrode) of the lithium battery 13, so that the lithium battery 13 is connected with the connecting wire and the power supply connection seat 11 to form the lithium battery energy storage unit;

[0071] Optionally, the locking member includes a locking frame 19, a locking pressing member 17, and a locking groove 23, wherein the locking frame 19 is arranged on the upper end surface edge of the loading tray 14 to form a placement portion for placing the lithium battery 13, the locking pressing member 17 is U-shaped, and the middle part of the locking pressing member 17 is connected to the locking frame 19, and the two ends of the locking pressing member 17 are suspended and extended, and are detachably engaged with the locking groove 23;

[0072] The two ends of the locking pressing member 17 are provided with protrusions 18, and the protrusions 18 are arranged toward the direction of the locking groove 23, so that the locking pressing member 17 can be detachably locked with the locking groove 23;

[0073] In addition, in this embodiment, the locking pressing member 17 is configured as a deformable material, so that both ends of the locking pressing member 17 can be pressed toward the middle;

[0074] In this embodiment, the user only needs to press the locking pressing member 17 toward the side away from the locking groove 23, so that the protrusion 18 on the locking pressing member 17 is out of contact with the locking groove 23, and pull toward the exit of the loading chamber 22, so that the loading tray 14 can be pulled out, and the lithium battery 13 can be loaded or unloaded;

[0075] At the same time, the locking groove 23 and the protrusion 18 are adapted to each other so that the locking pressing member 17 can be locked in the loading cavity 22;

[0076] Optionally, the loading sensing unit includes a sensing component and a magnetic member, the magnetic member is used to adsorb the loading pallet 14 to limit the movement of the loading pallet 14, and the sensing component senses the position of the loading pallet 14 and the lithium battery 13 installed on the loading pallet 14 to determine the position of the loading pallet 14 and the existence of the lithium battery 13 on the loading pallet 14;

[0077] Optionally, the sensing component includes a sensing probe and a sensing seat, the sensing seat is arranged on a side of the loading pallet 14 facing the loading cavity 22, and the sensing probe and the sensing seat are arranged relative to each other in a moving path, so that after the loading pallet 14 is transferred and pushed to the end of the push-pull track 16, the sensing probe and the sensing seat sense each other;

[0078] Wherein, after the sensing probe and the sensing base are close to each other and in positive contact, the state evaluation module is activated to perform evaluation;

[0079] Optionally, the magnetic attraction component includes at least one magnetic attraction seat 15 and at least one magnetic attraction member 24, at least one magnetic attraction seat 15 is arranged on the loading tray 14 away from the side of the opening, and is evenly spaced along the length direction of the inner side wall of the loading tray 14, at least one magnetic attraction member 24 is arranged on the inner wall of the loading cavity 22, and is arranged opposite to the at least one magnetic attraction seat 15, so that the at least one magnetic attraction seat 15 and the at least one magnetic attraction member 24 are mutually attracted;

[0080] Among them, at least one magnetic seat 15 and at least one magnetic member 24 cooperate with each other to limit the loading tray 14;

[0081] Through the cooperation between the magnetic attraction component and the induction component, the loading tray 14 can be stably attracted to ensure that the induction effect of the loading tray 14 is higher, and the accuracy and reliability of the induction are improved;

[0082] Optionally, the state evaluation module includes a data acquisition unit and an evaluation unit, the data acquisition unit respectively collects state data of the lithium batteries 13 in the battery partitions, and the evaluation unit performs state evaluation on the lithium batteries 13 in each of the battery partitions according to the state data to form an evaluation result;

[0083] Wherein, the data acquisition unit includes a voltage sensor, a current sensor, a temperature sensor, a data storage device, and an analog-to-digital converter. The voltage sensor and the current sensor are both arranged in the power supply component, and monitor the voltage level of the lithium battery 13 in the battery partition in real time. The current sensor is used to monitor the charge and discharge current of the lithium battery 13. The temperature sensor collects the temperature data of the lithium battery 13 stored in the battery partition. The analog-to-digital converter converts the current data collected by the current sensor and the voltage data collected by the voltage sensor. The data storage device stores the temperature data collected by the temperature sensor, as well as the converted voltage data and current data.

[0084] The data acquisition unit further includes a battery management subsystem (BMS), which is used to monitor the charging state and charging times of the lithium battery to obtain the charging times of the lithium battery;

[0085] At the same time, the battery management subsystem (BMS) can record the charge and discharge cycle in real time. Every time the battery completes a complete charge and discharge cycle, the BMS will increase the cycle count;

[0086] Optionally, the evaluation unit acquires the state data collected by the data collection unit, and calculates the state index CrisisIndexi of the i-th battery partition according to the following formula:

[0087]

[0088] Where V i is the actual voltage of the lithium battery in the ith battery partition, I i is the actual current of the lithium battery in the ith battery partition, T i is the actual temperature of the lithium battery in the ith battery partition, V ref is the ideal voltage value, I ref is the ideal current value, T ref is the ideal temperature value, ΔV max is the maximum allowable voltage deviation, ΔI max is the maximum allowable current deviation, ΔT max is the maximum allowable temperature deviation, f(C) is a function related to battery aging, and its value is calculated according to the following formula:

[0089]

[0090] In the formula, C i is the number of cycles of the current battery, and its value is collected by the battery management subsystem (BMS) of the battery. max It is the maximum permissible number of cycles, which is set by the battery manufacturer and is equivalent to a known value;

[0091] The evaluation unit calculates the average state index of all partitions And the difference of the state index CrisisIndexi of the i-th battery partition |ΔCrisisIndex i |, when |ΔCrisisIndex i | is greater than the status monitoring threshold Monitor set by the system, a secondary evaluation is required for the status of the i-th battery partition. If the secondary evaluation determines that there is an abnormality in the i-th battery partition, the battery management module is triggered to make a management decision for the battery partition;

[0092] If |ΔCrisisIndex i | is less than or equal to the status monitoring threshold Monitor set by the system, it means that the status of the i-th battery partition meets the system expectations;

[0093] In addition, if |ΔCrisisIndex i | is less than the status monitoring threshold Monitor set by the system, a secondary evaluation is required for the status of the i-th battery partition. If the secondary evaluation determines that there is no abnormality in the i-th battery partition, it means that the status of each partition in the storage cabinet is balanced;

[0094] In this embodiment, the state monitoring threshold Monitor set by the system is set by the system or the administrator according to the actual situation and input from the human-computer interaction interface. This is a technical means well known to those skilled in the art. Those skilled in the art can refer to the relevant technical manuals to learn about the technology, so it will not be described in detail in this embodiment.

[0095] Specifically, the average state index of all partitions Calculate according to the following formula:

[0096]

[0097] Where n is the total number of battery partitions in the storage cabinet, CrisisIndex i is the state index of the ith battery partition;

[0098] At the same time, △CrisisIndexi is calculated according to the following formula:

[0099]

[0100] In the formula, CrisisIndex i is the state index of the ith battery partition, is the average state index of all sub-regions;

[0101] In this embodiment, |ΔCrisisIndex i | is greater than the status monitoring threshold Monitor set by the system, it means that the i-th battery partition may be abnormal and the status of the i-th battery partition needs to be re-evaluated;

[0102] Among them, the condition for the initial abnormality assessment is: |ΔCrisisIndex i |Greater than the status monitoring threshold Monitor set by the system;

[0103] The evaluation unit calculates the balance index BalanceIndex of each battery partition in the storage cabinet:

[0104]

[0105] Where n is the total number of battery partitions in the storage cabinet, CrisisIndex i is the state index of the ith battery partition, is the average state index of all sub-regions;

[0106] The evaluation unit uses the relative deviation ratio R of the i-th battery partition i Measuring the degree of abnormality:

[0107]

[0108] Where, BalanceIndex is the balance index of each battery partition in the storage cabinet, △

[0109] CrisisIndex i CrisisIndex is the state index of the i-th battery partition i differences;

[0110] In this embodiment, the abnormal condition of the secondary evaluation is: the relative deviation ratio R of the i-th battery partition i Exceeding the abnormal threshold Worn set by the system;

[0111] Among them, when the relative deviation ratio R of the i-th battery partition i If the abnormal threshold Worn set by the system is exceeded, it means that the i-th battery partition has an abnormality, which triggers the battery management module to make a management decision for the battery partition;

[0112] When the relative deviation ratio R of the i-th battery partition i If it is lower than the abnormal threshold Worn set by the system, it means that the i-th battery partition is abnormal, and the battery partition is monitored;

[0113] In this embodiment, the abnormal threshold Worn set by the system is set by the system or the administrator according to the actual situation and input from the human-computer interaction interface. This is a technical means well known to those skilled in the art. Those skilled in the art can refer to relevant technical manuals to learn about the technology, so it will not be described in detail in this embodiment.

[0114] In this example, through the cooperation between the partition loading module and the state evaluation module, the partition storage state of the lithium battery can be monitored and accurately evaluated in real time, ensuring that the entire system has the advantages of strong partition management capability, high state evaluation accuracy, quick fault identification, and significant energy efficiency optimization;

[0115] Optionally, the battery management module executes management decisions according to the following steps:

[0116] S1. Obtain the evaluation results;

[0117] Specifically, the state index CrisisIndex of the i-th battery partition calculated by the evaluation unit is obtained. i , and the balance index BalanceIndex, where the state index CrisisIndex of the i-th battery partition i Reflects the health status of the i-th battery partition. The balance index BalanceIndex measures the balance of each battery partition in the entire storage cabinet;

[0118] S2, judging the battery partition status;

[0119] The initial abnormality judgment condition is: |ΔCrisisIndex i |Greater than the status monitoring threshold Monitor set by the system;

[0120] Among them, if |ΔCrisisIndex i |When the value is greater than the status monitoring threshold Monitor set by the system, the battery partition is marked as abnormal and a secondary evaluation is triggered;

[0121] The abnormal condition of the secondary evaluation is: relative deviation ratio R i Exceeding the abnormal threshold Worn set by the system;

[0122] Among them, if the relative deviation ratio R i If the abnormal threshold Worn set by the system is exceeded, the battery partition is marked as abnormal, which triggers a management decision for the battery partition (jump to step S3);

[0123] S3. Triggering management decisions:

[0124] The management decision includes: managing the charge and discharge current, managing voltage balancing, managing the temperature in the battery partition, and isolating and protecting the battery partition;

[0125] S4, trigger feedback and alarm operation;

[0126] The feedback and alarm operations include: when any partition is marked as abnormal and triggers a management decision, the system will record relevant data and send out an alarm signal to remind the user to perform maintenance and inspection;

[0127] Among them, if |ΔCrisisIndex i | If it is greater than the status monitoring threshold Monitor set by the system, the charging or discharging rate will be appropriately slowed down to reduce the loss of the battery and extend the battery life;

[0128] The battery management module calculates the adjusted charge and discharge current I according to the following formula new :

[0129]

[0130] In the formula, I ref It is the reference charge and discharge current, whose value is set by the system and input from the human-computer interface;

[0131] The battery management module calculates the voltage adjustment amount V implemented by the adjusted battery partition according to the following formula: balance :

[0132]

[0133] In the formula, R i is the ratio of the ith battery partition, R max is the maximum battery partition ratio allowed by the system (in this embodiment, its value is determined based on experience or historical data), V i is the voltage value of the partition, V high and V low The voltage values ​​of the highest and lowest voltage units in the historical data;

[0134] The battery management module calculates the adjusted target temperature T according to the following formula target :

[0135]

[0136] Where, T ref is the reference temperature, T max is the maximum allowable temperature, △T is the temperature adjustment value, and its value is set by the system. i is the actual temperature of the lithium battery in the ith battery partition, R iis the ratio of the ith battery partition,

[0137] R max It is the maximum ratio of battery partitions allowed by the system. For example, when ΔT is 5°C, it means that when the temperature deviates from the ideal value, the system will try to pull the temperature back to at least 5°C within the ideal temperature range;

[0138] The battery management module triggers a decision to isolate the i-th battery partition according to the evaluation result, including: when the relative deviation ratio R of the i-th battery partition i If the abnormal threshold Worn set by the system is exceeded, it means that the i-th battery partition has an abnormality, then the battery management module decides to isolate the battery partition from the system to prevent the fault from spreading, and cuts off the power supply of the partition and activates the early warning control module to actively cool and dissipate the heat of the battery partition;

[0139] In this embodiment, through the cooperation between the evaluation module and the battery management module, the state of the battery can be monitored and evaluated, and flexible management decisions can be made on the evaluated state, ensuring that the entire system has the advantages of strong monitoring and evaluation capabilities, high intelligence, high convenience of storage expansion, reliable refined monitoring measures, and good safety protection evaluation means;

[0140] Through the cooperation between the battery management module and the partition loading module, the energy distribution and storage efficiency of the lithium battery 13 are optimized, ensuring that the entire system has the advantages of high energy storage efficiency, maximum resource utilization, strong system stability, and good automatic adjustment capability;

[0141] Optionally, the early warning control module includes an isolation control unit, a temperature control management unit, an alarm notification unit and a feedback unit. After receiving the management decision of the battery management module, the isolation control unit quickly cuts off the power supply of the abnormal battery partition. The temperature control management unit monitors the temperature status in the battery partition in real time, and starts heat dissipation measures after receiving the management decision of the battery management module or detecting an abnormality. The alarm notification unit is used to give an early warning prompt to the user, and the feedback unit is used to record all data in the abnormality detection and processing process;

[0142] The isolation control unit isolates the battery partitions according to the following steps:

[0143] S11, receiving isolation decision signal:

[0144] When the "isolation decision" signal from the battery management module is detected and it is confirmed that the relative deviation ratio Ri of the i-th battery partition exceeds the abnormal threshold Worn, the isolation operation is prepared;

[0145] S12. Issue early warning signal:

[0146] Before cutting off the power supply, the isolation control unit sends a warning signal to the system's warning control module, activates the alarm notification unit and the temperature control management unit, reminds the user that the system is about to be isolated, and begins to prepare for cooling and dissipating the abnormal partition;

[0147] S13, gradually reduce the current:

[0148] In order to reduce the impact of power cut-off on the battery and system, the isolation control unit chooses to gradually reduce the charge and discharge current of the abnormal partition before cutting off, so that the current gradually approaches zero;

[0149] S14, execute power cut-off:

[0150] The isolation control unit sends an isolation control instruction to the power supply component corresponding to the abnormal battery partition, so that the power supply component corresponding to the abnormal battery partition quickly cuts off the power supply of the abnormal battery partition to prevent power from continuing to flow into or out of the partition;

[0151] S15. Verify power cut-off:

[0152] After the power is cut off, the power supply component corresponding to the abnormal battery partition confirms that the power supply has indeed been interrupted; wherein, the voltage and current in the battery partition can be detected by pre-set voltage and current sensors to ensure that the voltage and current have returned to zero, indicating that the power is successfully cut off;

[0153] S16, start active cooling and heat dissipation:

[0154] After the isolation is completed, the temperature control management unit immediately starts active cooling and heat dissipation operations on the faulty partition according to the received signal (operated through the temperature control management unit) to ensure that the partition temperature drops quickly to a safe range;

[0155] S17. Record the isolation process and provide feedback:

[0156] After the isolation operation is completed, the isolation control unit records the data of the entire process, including the power cut-off time, temperature changes, whether the isolation operation is successful, etc.; among them, these data will be transmitted to the feedback unit to form a fault processing log;

[0157] The temperature control management unit is arranged in the isolation cavity and performs temperature control management on the separately stored lithium battery 13;

[0158] The temperature control management unit includes a heat dissipation fan, a liquid cooling component, and a wetting component. The heat dissipation fan is arranged in the loading chamber 22 and dissipates the heat generated by the lithium battery 13. The liquid cooling component is used to perform liquid cooling and heat dissipation on the lithium battery 13. The wetting component is used to wet the lithium battery 13 in the battery partition in an emergency to prevent the fire of the lithium battery 13 from spilling out.

[0159] The temperature control management unit further includes a hidden cavity, which is disposed away from the inner wall surface of the opening of the loading cavity 22 and is disposed opposite to the opening;

[0160] The liquid cooling component and the wetted component are hidden in the hidden cavity;

[0161] The liquid cooling component includes a liquid cooling pipe 3, a radiator 2, a liquid storage tank 10 and a circulation pump 20, one end of the liquid cooling pipe 3 is connected to the liquid storage tank 10, the radiator 2 is nested in the middle section of the liquid cooling pipe 3 to form a heat dissipation part, the heat dissipation part is arranged on the outer wall of the storage cabinet 1, the other end of the liquid cooling pipe 3 is connected to the circulation pump 20 to form a circulation part, thereby forming a flow channel for the coolant, the circulation part is arranged in the liquid storage tank 10, and the coolant in the liquid storage tank 10 circulates in the pipe, so as to dissipate the heat generated by the lithium battery 13;

[0162] In this embodiment, the middle part of the liquid cooling pipe 3 is serpentine and symmetrically arranged on both sides of the lithium battery 13 to take away the heat generated by the lithium battery 13; at the same time, the contact end surface of the liquid cooling pipe 3 and the lithium battery 13 can be coated with conductive paste or conductive liquid to improve the heat conduction efficiency;

[0163] The wetting component includes a storage tank 7, a liquid outlet pipe 8, an on-off valve and an electronic flow valve 9. The storage tank 7 is used to store the wetting liquid. One end of the liquid outlet pipe 8 and one end of the electronic flow valve 9 form a liquid supply part. The electronic flow valve 9 measures and controls the flow of the liquid outlet pipe 8. The liquid supply part is arranged in the storage tank 7 and communicated with the inside of the storage tank 7 to supply the wetting liquid in the storage tank 7. The on-off valve is arranged at the end of the liquid outlet pipe 8 and controls the on-off of the outlet pipe. The other end of the liquid outlet pipe 8 extends into the loading chamber 22, so that the wetting liquid in the storage tank 7 can enter the loading chamber 22 to perform a wetting operation on the lithium battery 13 that has a fault or an abnormality.

[0164] The soaking component further includes a discharge pipe 4, an on-off control valve 6, and a manual control button 5. One end of the discharge pipe 4 is connected to the loading chamber 22 of the battery partition, and the other end of the discharge pipe 4 passes through the loading chamber 22 to discharge the soaking liquid from the loading chamber 22. The on-off control valve 6 is arranged in the discharge channel and performs on-off control on the pipe 4. The manual control button 5 is electrically connected to the on-off control valve 6. Under the operation of the manual control button 5, the on-off control valve 6 realizes a switch operation, thereby controlling the soaking liquid to be discharged.

[0165] In this embodiment, it is set that only when the situation of the lithium battery 13 in the battery partition is controlled and will not spread, the user can operate the manual control button 5 to open the on-off control valve 6 and drain the soaking liquid in the loading chamber 22;

[0166] The alarm notification unit includes an audible and visual alarm and a communicator. The audible and visual alarm is used to send an instant alarm to the on-site users or maintenance personnel through a combination of sound and light after receiving the management decision signal, reminding them to immediately pay attention to the existence of the problem. The communicator is used to send abnormal alarms or system status information to remote users or system administrators to ensure that users can receive alarm information in time and take action even if they are not on-site.

[0167] The feedback unit includes a recorder and a data buffer, wherein the recorder is used to collect all data in the abnormality detection and processing process, and the data buffer stores all data collected by the recorder in the abnormality detection and processing process;

[0168] Through the cooperation of the battery management module, the status evaluation module and the early warning control module, the health status of the lithium battery 13 can be comprehensively evaluated and timely intervened, ensuring that the entire system has the advantages of extended battery life, strong fault prevention capability, high intelligent diagnosis accuracy and good operation safety;

[0169] In this embodiment, the storage process of the lithium battery 13 can be monitored and managed through the cooperation between the battery management module and the early warning control module, ensuring that the entire system has the advantages of strong energy storage management level, good reliability and safety, strong refined management ability, high intelligence and reliable evaluation means;

[0170] Among them, through the mutual cooperation of the partition loading module, the battery management module, the status evaluation module, and the early warning control module, the overall operation process of the lithium battery 13 can be fully managed and controlled, ensuring that the entire system has the advantages of strong partition independence, high management flexibility, good system stability and fine energy efficiency management.

[0171] Embodiment 2: This embodiment should be understood to include all the features of any of the above embodiments, and further improve upon them. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, the modular lithium battery energy storage management system also includes an event intervention module, and the event intervention module is used to intervene in the event of the lithium batteries in the battery partition to eliminate the emergency state of the lithium batteries in the battery partition;

[0172] The event intervention module includes an event analysis unit and an emergency control unit. The event analysis unit collects the temperature data of the lithium batteries in the battery partition, and analyzes the lithium battery status according to the collected lithium battery temperature data to form an analysis result. The emergency control unit controls the temperature control management unit according to the analysis result to intervene in and process the temperature management of the lithium battery.

[0173] The event analysis unit includes a data collection subcomponent and an event analysis subunit, wherein the data collection subcomponent collects heat data of the lithium batteries in the battery partition, and the event analysis subunit analyzes the state of the lithium batteries according to the heat data collected by the data collection subcomponent;

[0174] In this embodiment, the battery management module triggers a corresponding decision, and the temperature control management unit performs heat dissipation measures on the lithium batteries in the battery partition according to the management decision of the battery management module; during the heat dissipation process, if the situation continues to develop (conventional liquid cooling cannot solve the high temperature state of the lithium battery), the situation intervention module is triggered to collect and analyze the temperature data of the lithium battery to obtain the critical index of the situation:

[0175] Wherein, the data acquisition sub-component includes a contact member and at least one temperature sensor arranged on the contact member, the contact member is arranged on the contact end surface between the loading tray and the lithium battery, and the contact member is U-shaped and fixed on the contact end surface between the loading tray and the lithium battery;

[0176] Wherein, at least one temperature sensor is arranged at the contact end surface between the contact member and the lithium battery, and at the same time, the contact end surface of the contact member needs to be close to the outer wall of the lithium battery to obtain the temperature data of the lithium battery;

[0177] As shown in the figure, the contact members are symmetrically arranged on the left and right sides of the loading tray to collect the temperatures of the left and right sides of the lithium battery;

[0178] The event analysis subunit acquires the temperature data collected by the data collection subcomponent, and calculates the event criticality index Critical according to the following formula:

[0179]

[0180] Where n is the number of temperature sensors deployed, T i is the actual temperature value of the lithium battery collected by the i-th temperature sensor, T ref The ideal temperature for lithium battery storage set by the system is used as a reference value to evaluate the deviation of the actual temperature, T max The safe temperature limit set for the system represents the maximum temperature that the battery can withstand, △T i is the temperature change rate of the i-th temperature sensor, that is, the temperature change amplitude per unit time, △T max The maximum temperature change rate allowed in the system. Exceeding this rate may indicate rapid heating of the battery, which is dangerous.

[0181] When the critical index of the situation Critical exceeds the intervention monitoring threshold Intervene set by the system, the emergency control unit is triggered to control the wetting component so that the wetting component performs a wetting operation on the lithium battery to prevent the lithium battery in the battery partition where the critical situation occurs from being processed;

[0182] When the critical index Critical is lower than or equal to the intervention monitoring threshold Intervene set by the system, it means that the lithium battery is in an acceptable state for the system. At this time, the temperature deviation and change rate are within the safe range, and the system does not need to take emergency measures;

[0183] The intervention monitoring threshold value Intervene set by the system is set by the system or the user according to the actual situation. This is a technical means well known to those skilled in the art. Those skilled in the art can refer to relevant technical manuals to learn about the technology, so it will not be described in detail in this embodiment.

[0184] The emergency control unit obtains the critical index Critical and the intervention monitoring threshold Intervene set by the system, and calculates the flow rate Q of the wetted component:

[0185]

[0186] In the formula, Q maxis the maximum flow rate of the wetted component. When the critical index of the situation reaches or exceeds Intervene, the system can provide the maximum flow rate. m is the adjustment factor, and its value is related to the past history of the lithium battery (such as the number of times the danger occurs or the number of times the battery partition has abnormalities). Its value is calculated according to the following formula:

[0187] m=min(m0+Δm×(N events +N critical ),m max );

[0188] Where m0 is the initial value, which is set by the system and is equivalent to the default value. Δm is the increment of m after each event. N events is the number of abnormal events that occur in the battery partition. Its value is automatically determined based on the actual situation of the battery partition. critical is the number of serious dangerous events experienced by the battery partition, and its value is automatically determined according to the actual situation of the battery partition. max The upper limit of the adjustment coefficient set by the system is set by the system and is equivalent to a known value;

[0189] In this embodiment, if |ΔCrisisIndex of the i-th battery partition i | is greater than the state monitoring threshold Monitor set by the system, and the relative deviation ratio R of the i-th battery partition i If the abnormal threshold Worn set by the system is exceeded, it means that there is an abnormality in the i-th battery partition, and the number of abnormal events N occurring in the battery partition is counted. events Accumulate 1 time;

[0190] If the wetted component of the i-th battery partition is triggered once, it is recorded as a serious dangerous event, that is, the number of serious dangerous events experienced by the battery partition N critical Accumulate once;

[0191] The emergency control unit transmits the calculated flow Q value to the wetting component, and controls the flow of the electronic flow valve through the central processor, thereby realizing the wetting operation of the lithium batteries in the battery partition in a short time;

[0192] In this embodiment, through the mutual cooperation of the event intervention module and the early warning control module, the safety of lithium battery thermal energy storage is improved, and separate monitoring and early warning control are ensured during the storage process of the lithium battery, ensuring that the entire system has the advantages of strong storage capacity, good early warning control and processing reliability, high intelligence, and high storage safety.

[0193] The contents disclosed above are only preferred feasible embodiments of the present invention, and do not limit the protection scope of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention specification and drawings are included in the protection scope of the present invention. In addition, the elements therein can be updated as technology develops.

Claims

1. An efficient modular lithium battery energy storage management system, comprising a server and a lithium battery, characterized in that: The modular lithium battery energy storage management system also includes a partition loading module, a battery management module, a state evaluation module, and an early warning control module, and the server is connected to the partition loading module, the battery management module, the state evaluation module, and the early warning control module respectively; The partition loading module is used for detachable loading of at least one lithium battery, the status evaluation module collects status data of at least one lithium battery in the partition loading module, and evaluates the status of at least one lithium battery according to the status data to form an evaluation result, the battery management module triggers a management decision for at least one lithium battery according to the evaluation result, and the early warning control module performs partition management on at least one lithium battery according to the management decision; The partition loading module includes a storage cabinet, a partition loading unit, and a loading sensing unit. The storage cabinet is provided with at least one independent loading cavity with an opening at one end. The partition loading unit and the loading sensing unit are both arranged in the loading cavity of the storage cabinet. The partition loading unit is provided for at least one lithium battery to be detachably and independently loaded to form a separate battery partition. The loading sensing unit senses at least one lithium battery loaded in the partition loading unit to activate the state evaluation module to evaluate the battery partition. The state assessment module, the battery management module and the early warning control module independently control and manage the activated battery partitions.

2. The high-efficiency modular lithium battery energy storage management system according to claim 1, characterized in that: The partitioned loading unit includes a loading pallet, a push-pull track, a power supply component, and a locking component. The push-pull track is symmetrically arranged on the side walls of at least one of the loading cavities. The loading pallet is slidably connected to the push-pull track. The locking component is connected to the loading pallet and locks the loading pallet to limit the movement of the loading pallet. The power supply component is connected to the port of the lithium battery loaded in the loading cavity to form a lithium battery energy storage unit.

3. The high-efficiency modular lithium battery energy storage management system according to claim 2, characterized in that: The loading sensing unit includes a sensing component and a magnetic component. The magnetic component is used to adsorb the loading pallet to limit the movement of the loading pallet. The sensing component senses the position of the loading pallet and the lithium battery installed on the loading pallet to determine the position of the loading pallet and the existence of the lithium battery on the loading pallet.

4. The high-efficiency modular lithium battery energy storage management system according to claim 3 is characterized in that: The state evaluation module includes a data acquisition unit and an evaluation unit, wherein the data acquisition unit respectively collects the state data of the lithium batteries in the battery partitions, and the evaluation unit performs a state evaluation on the lithium batteries in each of the battery partitions according to the state data to form an evaluation result; Among them, the data acquisition unit includes a voltage sensor, a current sensor, a temperature sensor, a data storage device, and an analog-to-digital converter. The voltage sensor and the current sensor are both arranged in the power supply component, and monitor the voltage level of the lithium battery in the battery partition in real time. The current sensor monitors the charging and discharging current of the lithium battery. The temperature sensor collects temperature data stored in the lithium battery in the battery partition. The analog-to-digital converter converts the current data collected by the current sensor and the voltage data collected by the voltage sensor. The data storage device stores the temperature data collected by the temperature sensor, as well as the converted voltage data and current data.

5. The high-efficiency modular lithium battery energy storage management system according to claim 4, characterized in that: The evaluation unit acquires the state data collected by the data collection unit, and calculates the state index CrisisIndexi of the i-th battery partition according to the following formula: Where V i is the actual voltage of the lithium battery in the ith battery partition, I i is the actual current of the lithium battery in the ith battery partition, T i is the actual temperature of the lithium battery in the ith battery partition, V ref is the ideal voltage value, I ref is the ideal current value, T ref is the ideal temperature value, ΔV max is the maximum allowable voltage deviation, ΔI max is the maximum allowable current deviation, ΔT max is the maximum temperature deviation allowed, f(C) is a function related to battery aging; The evaluation unit calculates the average state index of all partitions and the difference △CrisisIndexi of the state index CrisisIndexi of the i-th battery partition, when |ΔCrisisIndex i | is greater than the status monitoring threshold Monitor set by the system, a secondary evaluation is required for the status of the i-th battery partition. If the secondary evaluation determines that there is an abnormality in the i-th battery partition, the battery management module is triggered to make a management decision for the battery partition.

6. The high-efficiency modular lithium battery energy storage management system according to claim 5, characterized in that: The battery management module performs management decisions according to the following steps: S1. Obtain the evaluation results; S2, judging the battery partition status; S3. Triggering management decisions: The management decision includes: managing the charge and discharge current, managing the voltage balance, managing the temperature in the battery partition, and isolating and protecting the battery partition; S4, trigger feedback and alarm operation; The feedback and alarm operations include: when any partition is marked as abnormal and triggers a management decision, the system will record relevant data and send out an alarm signal to remind the user to perform maintenance and inspection.

7. The high-efficiency modular lithium battery energy storage management system according to claim 6, characterized in that: The early warning control module includes an isolation control unit, a temperature control management unit, an alarm notification unit and a feedback unit. After receiving the management decision of the battery management module, the isolation control unit quickly cuts off the power supply of the abnormal partition. The temperature control management unit monitors the temperature status within the partition in real time, and starts heat dissipation measures after receiving the management decision of the battery management module or detecting an abnormality. The alarm notification unit is used to provide early warning prompts to the user, and the feedback unit is used to record all data during the abnormality detection and processing process.

8. The high-efficiency modular lithium battery energy storage management system according to claim 7, characterized in that: The sensing component includes a sensing probe and a sensing seat, wherein the sensing seat is arranged on a side of the loading pallet facing the loading cavity, and the sensing probe and the sensing seat are arranged relative to each other in a moving path, so that after the loading pallet is transferred and pushed to the end of the push-pull track, the sensing probe and the sensing seat sense each other; Wherein, after the sensing probe and the sensing base are close to each other and in positive contact, the state evaluation module is activated to perform evaluation.

9. The high-efficiency modular lithium battery energy storage management system according to claim 8, characterized in that: The magnetic attraction member includes at least one magnetic attraction seat and at least one magnetic attraction member, the at least one magnetic attraction seat is arranged on the loading tray away from the opening side and is evenly spaced along the length direction of the inner side wall of the loading tray, and the at least one magnetic attraction member is arranged on the inner wall of the loading cavity and is arranged opposite to the at least one magnetic attraction seat, so that the at least one magnetic attraction seat and the at least one magnetic attraction member are mutually attracted; Among them, at least one magnetic seat and at least one magnetic element are used in cooperation with each other to limit the loading tray.

10. The high-efficiency modular lithium battery energy storage management system according to claim 9, characterized in that: The locking component includes a locking frame, a locking press piece, and a locking groove. The locking frame is arranged on the edge of the upper end surface of the loading tray to form a placement portion for placing the lithium battery. The locking press piece is U-shaped, and the middle part of the locking press piece is connected to the locking frame. The two ends of the locking press piece are suspended and extended, and are detachably engaged with the locking groove.

Images