Mobile energy storage equipment based on construction site

Abstract

The invention relates to the technical field of energy storage equipment, and discloses movable energy storage equipment based on a construction site, the movable energy storage equipment comprises a box body and a movable seat, an inclination angle adjusting assembly is arranged between the box body and the movable seat, the posture of the box body is sensed in real time through a gyroscope, a threaded rod is driven to adjust the supporting height, and the diagonal deformation of the box body is controlled to be smaller than or equal to 5 mm; a sliding groove and a connecting rod linkage mechanism are arranged in an installation barrel on the outer wall of the box body, a motor is matched to drive a rotating frame to achieve automatic winding and unwinding of a power line, cables are prevented from being scattered and damaged, a sensor set is arranged in the box body, temperature excursion and vibration interference are eliminated through a dynamic compensation algorithm, and the net weight is calculated and calibrated in real time. And electrolyte leakage or structural damage is judged in combination with leakage current monitoring. The problems that box deformation is out of control, cable management is disordered and hidden danger recognition is lagged under the complex terrain are solved, and the safety and reliability of equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage devices, and particularly to a mobile energy storage device based on a construction site. Background Art

[0002] Mobile energy storage devices need to be frequently moved at construction sites to adapt to changes in the working area, but they face significant challenges in complex terrains (such as slopes and potholed roads). In existing devices, the box body and the moving seat usually adopt a rigid connection structure. When moving or parking on an inclined ground, the box body undergoes uneven deformation due to its own weight, resulting in continuous compression of the insulating sheets between the battery cells inside the box. Cumulative long-term deformation is likely to cause the insulating sheets to rupture, leading to short-circuit leakage of the battery cells. The traditional support structure lacks the ability to adapt to the attitude, and cannot dynamically adjust the attitude of the box body to relieve local stress concentration. It only relies on passive load-bearing design and is difficult to block such risks.

[0003] During the movement and use of existing devices, the management of power cables relies on manual retraction and extension. The cables are easily worn on the surface or have loose connectors due to dragging. The scattered cables are often crushed by construction machinery or eroded by muddy water, increasing the risk of short circuit. At the same time, the disorderly storage of cables leads to a reduction in work efficiency, and it is difficult to avoid damage to the insulating layer caused by too small a bending radius of the cables during manual operation.

[0004] In addition, existing devices lack a real-time monitoring mechanism for changes in the weight of the box body. Hidden dangers such as electrolyte leakage or structural damage are difficult to be detected in time and rely on regular manual inspections. For example, the slight weight change caused by the initial stage of electrolyte leakage cannot be identified through visual inspection, and long-term accumulation of hidden dangers may lead to thermal runaway. In traditional solutions, the determination of structural damage often lags behind the actual occurrence time, increasing the risk of the device operating with defects. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a mobile energy storage device based on a construction site, which solves the problems of safety hazards caused by the rupture and leakage of the insulating sheets of battery cells due to the deformation of the box body and improper cable management of mobile energy storage devices in complex terrains.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A mobile energy storage device based on a construction site, comprising a box body and a moving seat. The box body and the moving seat are connected by an inclination adjustment component, which uses a gyroscope to sense the attitude change of the box body and drives the bottom actuator to dynamically adjust the support height, controlling the diagonal deformation of the box body within ≤5 mm, eliminating the risk of a sharp increase in leakage current caused by the compression and rupture of the insulating sheets between the battery cells. The outer wall of the box body is penetrated with an installation barrel, and a second through port is provided at the outlet of the installation barrel. The outer wall of the installation barrel is penetrated with a plurality of sliding grooves, and a connecting rod slides inside each sliding groove. One end of the plurality of connecting rods is connected to an installation disk, and the other end is connected to a connecting ring. The inside of the connecting ring is sleeved outside the installation barrel. The outer wall of the installation disk is provided with a driving component for controlling the automatic winding and unwinding of the power cord by a plurality of fixing rods. A threaded rod is arranged inside the box body, a sensor group is arranged inside the box body, the sensor group is electrically connected to a weight monitoring system, and a battery module is arranged inside the box body.

[0007] Preferably, the inclination adjustment component includes two mounting seats. A threaded rod rotates in the middle of the two mounting seats. The end of the threaded rod is connected to a second motor. A moving block is threadedly connected to the outer wall of the threaded rod. One end of a movable rod rotates on both sides of the moving block, and the other end rotates with a connecting seat. The top of the connecting seat is installed at the bottom of the box body. Side plates are installed on both sides of the moving seat, and the top ends of their outer walls rotate at the bottom of the outer wall of the box body. A gyroscope is installed at the center of the bottom of the moving seat.

[0008] Preferably, dampers rotate on both sides of the outer wall of the moving seat, and the other ends rotate on the outer wall of the box body. The two groups of dampers and the side plates are respectively located at the four corners of the box body.

[0009] Preferably, a fixing seat is installed on the outer wall of the box body, and a handle is rotated on the top of the fixing seat.

[0010] Preferably, an operation room is opened on the outer wall of the box body. A room door is provided at the opening of the operation room. An operation panel is arranged inside the operation room, and a through groove is penetrated between the operation room and the box body.

[0011] Preferably, the driving component includes a first motor. The outside of the first motor is installed on the outer wall of the installation disk. The driving end of the first motor is connected to a rotating shaft rod through a belt transmission member. A rotating frame is installed on the outer wall of the rotating shaft rod. A plurality of fixing rods are arranged in a rectangular array on the outer wall of the rotating frame. A first through port is penetrated in the middle of the installation disk, and a second through port is penetrated in the middle of the installation barrel.

[0012] Preferably, the sensor group includes four load cells, the four load cells are respectively arranged at four corners of the bottom of the box body, a triaxial accelerometer is installed at the geometric center of the inner bottom of the box body, a strain sensor is installed at the center of the upper cover of the battery module, and a temperature and humidity sensor is installed on the top of the battery module.

[0013] Preferably, the weight monitoring system includes:

[0014] A data acquisition module for acquiring data of the sensor group and the leakage current detection unit in real time;

[0015] A net weight analysis module for calculating the calibrated net weight through a dynamic compensation algorithm;

[0016] An abnormality determination module that determines weight abnormality when the following conditions are met:

[0017] The continuous change rate of the calibrated net weight > 0.5% / h;

[0018] The leakage current > 10 mA and lasts for 30 seconds;

[0019] A deformation control module that senses the tilt angle of the box body in real time through a gyroscope, drives the inclination adjustment component to dynamically adjust the support height, and controls the diagonal deformation of the box body to ≤ 5 mm;

[0020] A maintenance trigger module that generates a maintenance instruction when an abnormality is detected.

[0021] Preferably, the dynamic compensation algorithm is as follows:

[0022]

[0023] where T is the real-time temperature of the temperature and humidity sensor, is the vibration vector of the triaxial accelerometer, W 校准 is the calibrated weight value, W 原始 is the original measured value of the load cell.

[0024] Preferably, the support height calculation formula in the deformation control module is as follows:

[0025] ΔH = 2.5sinθ + 0.08ε;

[0026] where ε is the microstrain value of the strain sensor and ΔH is the support height.

[0027] The present invention provides a mobile energy storage device based on a construction site. It has the following beneficial effects:

[0028] 1. The present invention uses an inclination adjustment component to continuously sense the inclination angle of the box body and dynamically adjust the support height, controlling the deformation of the box body within a safe threshold. Compared with the problem of the compression and rupture of the battery cell insulation sheet caused by excessive inclination of the box body when traditional equipment moves on an inclined slope, this solution uses a mechanical linkage design of a threaded rod driving a movable rod to actively compensate for the attitude deviation of the box body, effectively blocking the risk of short circuit between battery cells caused by the accumulation of deformation, and improving the reliability of mobile energy storage in complex construction scenarios.

[0029] 2. The present invention adopts a multi-source sensor fusion technology, uses a dynamic compensation algorithm to eliminate environmental interference, and realizes accurate monitoring of weight and deformation. Traditional solutions rely on a single sensor and are easily affected by temperature and vibration, resulting in misjudgment. However, the present invention enhances the recognition ability of hidden dangers such as electrolyte leakage and structural damage through multi-dimensional data collaborative analysis, and greatly improves the reliability of abnormal warning.

[0030] 3. The present invention realizes the linear control of automatic retraction and extension of the power cord through the cooperation of a chute guiding structure and a motor-driven rotating frame. Compared with the problem of easy winding and crushing damage of the cable caused by manual operation, this solution ensures the stability of the cable retraction and extension path through mechanical restraint and tension adjustment, reduces the damage to the cable caused by external force pulling or environmental corrosion, and at the same time avoids the on-site safety hazards caused by cable scattering. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is an overall three-dimensional view of the device of the present invention;

[0032] Figure 2 is a schematic structural diagram of the battery module of the present invention;

[0033] Figure 3 is a schematic internal structure diagram of the box body of the present invention;

[0034] Figure 4 is a schematic internal structure diagram of the operation room of the present invention;

[0035] Figure 5 is a schematic internal structure diagram of the installation barrel of the present invention;

[0036] Figure 6 is a schematic structural diagram of the rotating frame of the present invention;

[0037] Figure 7 is a framework diagram of the system of the present invention.

[0038] Among them, 1. Box body; 2. Operation room; 3. Room door; 4. Through groove; 5. Operation panel; 6. Installation barrel; 7. Slide groove; 8. Connecting rod; 9. Installation plate; 10. First through port; 11. Fixed rod; 12. Belt conveyor; 13. First motor; 14. Connecting ring; 15. Second through port; 16. Moving seat; 17. Side plate; 18. Installation seat; 19. Second motor; 20. Threaded rod; 21. Moving block; 22. Movable rod; 23. Connecting seat; 24. Damper; 25. Fixed seat; 26. Handle; 27. Heat dissipation port; 28. Weighing sensor; 29. Battery module; 30. Strain sensor; 31. Temperature and humidity sensor; 32. Triaxial accelerometer; 33. Gyroscope; 34. Rotating frame; 35. Rotating shaft rod. Detailed implementation manners

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to the attached Figure 1 attachment Figure 5 and the attachment Figure 6 . An embodiment of the present invention provides a mobile energy storage device based on a construction site. The box body 1 and the moving seat 16 are connected by an inclination angle adjustment component, which uses the gyroscope 33 to sense the attitude change of the box body 1 and drives the bottom actuator to dynamically adjust the support height, controlling the diagonal deformation of the box body within ≤5 mm and eliminating the risk of a sharp increase in leakage current caused by the compression and rupture of the insulating sheet between the battery cells. The outer wall of the box body 1 is provided with an installation barrel 6 in a penetrating manner. A second through port 15 is arranged at the outlet of the installation barrel 6. The outer wall of the installation barrel 6 is provided with a plurality of slide grooves 7 in a penetrating manner. Each slide groove 7 is internally slid with a connecting rod 8. One ends of the plurality of connecting rods 8 are connected to an installation plate 9, and the other ends are connected to a connecting ring 14. The inside of the connecting ring 14 is sleeved outside the installation barrel 6. A driving component is arranged on the outer wall of the installation plate 9, which is used to control the automatic winding and unwinding of the power cord by a plurality of fixed rods 11. A threaded rod 20 is arranged inside the box body 1. A sensor group is arranged inside the box body 1. The sensor group is electrically connected to a weight monitoring system. A battery module 29 is arranged inside the box body 1.

[0041] The driving component includes a first motor 13. The outside of the first motor 13 is installed on the outer wall of the installation plate 9. The driving end of the first motor 13 is connected to a rotating shaft rod 35 through a belt conveyor 12. A rotating frame 34 is installed on the outer wall of the rotating shaft rod 35. A plurality of fixed rods 11 are arranged in a rectangular array on the outer wall of the rotating frame 34. A first through port 10 is arranged in the middle of the installation plate 9 in a penetrating manner. A second through port 15 is arranged in the middle of the installation barrel 6 in a penetrating manner.

[0042] An operation room 2 is provided on the outer wall of the box body 1. A room door 3 is arranged at the opening of the operation room 2. An operation panel 5 is arranged in the operation room 2. A through groove 4 runs through between the operation room 2 and the box body 1.

[0043] Specifically, when the equipment moves to an inclined road surface, the gyroscope detects the inclination angle and direction of the box body 1 in real time, triggers the operation of the inclination angle adjustment component at the bottom of the box body 1, and controls the diagonal deformation of the box body within ≤5 mm, avoiding the rupture of the insulating sheet between the battery cells inside the battery module 29 due to excessive extrusion.

[0044] When the equipment is in use, open the second through port 15 and the room door 3, pull the fixing rod 11 to drive the mounting plate 9 to move in the mounting barrel 6, synchronously make multiple connecting rods 8 around slide inside the chute 7, and the connecting ring 14 moves outside the mounting barrel 6, so as to control the stable displacement of the mounting plate 9. The fixing rod 11 drives the power cord to move out of the mounting barrel 6. Then, start the first motor 13 through the operation panel 5 to make the rotating frame 34 rotate, so as to pay out the power cord. After the power cord is paid out to an appropriate length, the power cord plug can be passed through the first through port 10, the second through port 15 and the through groove 4 into the operation room 2 and inserted into the socket for power supply. After the equipment is used up, the first motor 13 can be started in reverse to make the rotating frame 34 rotate, so as to quickly wind up the power cord. Through the control of automatic paying out and winding up, the power cord will not be randomly scattered and piled on the ground during use, avoiding rolling, hooking or chemical corrosion at the construction site, reducing the accidental damage rate of the cable. At the same time, the hidden storage avoids the cable occupying the passage or the road surface and reduces the risk of personnel tripping.

[0045] Please refer to the attached Figure 1 - attached Figure 2 and attached Figure 4 , a fixing seat 25 is installed on the outer wall of the box body 1, and a handle 26 rotates on the top of the fixing seat 25.

[0046] The inclination angle adjustment component includes two mounting seats 18. A threaded rod 20 rotates in the middle of the two mounting seats 18. The end of the threaded rod 20 is connected to a second motor 19. A moving block 21 is threadedly connected to the outer wall of the threaded rod 20. One end of a movable rod 22 rotates on both sides of the moving block 21, and the other end rotates with a connecting seat 23. The top of the connecting seat 23 is installed at the bottom of the box body 1. Side plates 17 are installed on both sides of the moving seat 16, and the top ends of their outer walls rotate at the bottom of the outer wall of the box body 1. A gyroscope 33 is installed at the center of the bottom of the moving seat 16.

[0047] Dampers 24 rotate on both sides of the outer wall of the moving seat 16, and the other ends rotate on the outer wall of the box body 1. The two groups of dampers 24 and the side plates 17 are respectively located at the four corners of the box body 1.

[0048] Specifically, when using the device of the present application, during the process of pulling the device into the working area by the handle 26, if the device is walking on an inclined slope, the deformation control module calculates the support height in real time by collecting the inclination angle θ of the gyroscope 33 and the micro-strain value ε of the strain sensor 30, and drives the bottom inclination adjustment component to dynamically adjust the support height, controlling the diagonal deformation of the box body 1 to be ≤ 5 mm. When the inclination adjustment component is operating, the second motor 19 is started to drive the threaded rod 20 to rotate, driving the moving block 21 to move back and forth along the outer wall of the threaded rod 20, thereby driving the movable rod 22 to adjust the angle, and then controlling the diagonal deformation of the box body 1 to be ≤ 5 mm. At the same time, the rigid locking mode of the damper 24 is activated to suppress resonance. Through the hinge structure of the movable rod 22 and the connecting seat 23, the linear motion is converted into the dynamic adjustment of the support height of the box body 1. For example, when a 5° inclination is detected, the threaded rod rotates to displace the moving block by 8 mm, and through the lever effect, the diagonal deformation amount of the box body is compressed from 12 mm to 4.5 mm, avoiding the rupture of the insulating sheet between the battery cells inside the battery module 29 due to excessive extrusion.

[0049] Please refer to the attached Figure 2 - attached Figure 3 , the sensor group includes four load cells 28, and the four load cells 28 are respectively arranged at the four corners of the bottom of the box body 1. A triaxial accelerometer 32 is installed at the geometric center of the inner bottom of the box body 1, a strain sensor 30 is installed at the center of the upper cover of the battery module 29, and a temperature and humidity sensor 31 is installed on the top of the battery module 29.

[0050] Specifically, during the use of the device, the sensor group will collect real-time data. The load cells 28 at the four corners of the box body 1 continuously capture the load data of each support point, the triaxial accelerometer 32 synchronously records the vibration intensity of the device, the temperature and humidity sensor 31 monitors the environmental changes, and the leakage current detection unit tracks the insulation state between the battery cells. These data converge to the net weight analysis module at the millisecond level, and the environmental interference is eliminated through the dynamic compensation algorithm. For example, when the temperature rises by 1 °C, the temperature drift error of the sensor is automatically corrected by the coefficient of 0.0023 in the formula, and the vibration interference is compensated in the reverse direction according to the modulus of the acceleration vector by a proportional coefficient of 0.15. Finally, a calibrated net weight curve is generated. The system continuously analyzes the change trend of the calibrated weight and the leakage current value. When it is detected that the weight drops by more than 0.5% per hour or the leakage current breaks through 10 mA and lasts for half a minute, the multi-level response mechanism is immediately triggered, that is, the maintenance trigger module generates a maintenance instruction.

[0051] Please refer to the attached Figure 7 , the weight monitoring system includes:

[0052] A data acquisition module for obtaining the data of the sensor group and the leakage current detection unit in real time;

[0053] Net weight analysis module, which is used to calculate the calibrated net weight through a dynamic compensation algorithm;

[0054] Abnormal determination module, which determines weight abnormality when the following conditions are met:

[0055] The continuous change rate of the calibrated net weight > 0.5% / h;

[0056] Leakage current > 10 mA and lasts for 30 seconds;

[0057] Deformation control module, which senses the tilt angle of the box body 1 in real time through the gyroscope 33, drives the inclination adjustment component to dynamically adjust the support height, and controls the diagonal deformation of the box body 1 to ≤ 5 mm;

[0058] Maintenance trigger module, which generates a maintenance instruction when an abnormality is detected.

[0059] The dynamic compensation algorithm is as follows:

[0060]

[0061] where T is the real-time temperature of the temperature and humidity sensor 31, is the vibration vector of the triaxial accelerometer 32, W 校准 is the calibrated weight value, W 原始 is the original measured value of the load cell 28.

[0062] The calculation formula for the support height in the deformation control module is as follows:

[0063] ΔH = 2.5sinθ + 0.08ε;

[0064] where ε is the micro-strain value of the strain sensor 30, and ΔH is the support height.

[0065] Specifically, in this embodiment, the data acquisition module obtains the real-time status data of the device through a distributed sensor network. Specifically, the four-corner load cells 28 collect the load values of each support point at a sampling rate of 100 Hz, the temperature and humidity sensor 31 monitors the internal environment temperature and humidity of the box body 1, the triaxial accelerometer 32 records the vibration acceleration vector of the device, and the leakage current detection unit measures the insulation state between the battery cells at an interval of 10 ms. In some embodiments, the sensor group packages and uploads the data to the embedded processor through the CAN bus, and the transmission delay is less than 5 ms to ensure real-time performance.

[0066] The net weight analysis module is used to eliminate environmental interference and calculate the true net weight. The expression of the dynamic compensation algorithm is:

[0067]

[0068] where W 校准 is the calibrated net weight (kg); W原始 is the sum of the original measurement values of the four-corner load cell 28 (kg); T is the temperature value (°C) collected by the temperature and humidity sensor 31; is the acceleration vector (m / s 2 ) output by the triaxial accelerometer 32, and its modulus is calculated as

[0069] In a possible implementation, the coefficient 0.0023 (kg / °C) is determined through a constant-temperature calibration experiment, indicating the weighing drift caused by a 1°C increase in temperature; the coefficient 0.15 (kg / (m / s 2 )) is obtained by fitting through a shaker table test and is used to quantify the influence of acceleration interference on weight. For example, when the device vibrates at 2 m / s 2 , the compensation term is 0.30 kg

[0070] The abnormal determination module determines the abnormal state of the device based on the net weight and multi-source data. The determination conditions include:

[0071] The continuous change rate of the calibrated net weight > 0.5% / h:

[0072] (W0 is the rated weight of the device);

[0073] For example, when the rated weight is 1000 kg, a weight change of more than 5 kg per hour triggers an alarm.

[0074] Leakage current > 10 mA and lasts for 30 seconds:

[0075] Verify the continuous state through current integration to avoid misjudgment caused by instantaneous interference.

[0076] In some embodiments, the system uses a sliding time window algorithm (window length 30 seconds, step size 1 second) to update the determination result in real time.

[0077] The deformation control module drives mechanical adjustment according to the tilt and deformation data. The calculation formula for the support height adjustment amount is:

[0078] ΔH = 2.5sinθ + 0.08ε;

[0079] where ΔH is the support height adjustment amount (mm); θ is the tilt angle of the box detected by the gyroscope 33 (°); ε is the micro-strain value (με) output by the strain sensor 30.

[0080] Specifically, the coefficient 2.5 (mm / °) is determined by the tilt table test and represents the compensation height required for each 1° tilt; the coefficient 0.08 (mm / με) is calibrated through the deformation loading experiment and reflects the linear relationship between microstrain and deformation. For example, when θ = 5° and ε = 50 με, ΔH = 2.5×0.0872 + 0.08×50 ≈ 4.18 mm. The driving motor two 19 displaces the moving block 21 by the corresponding distance, compressing the deformation of the box body 1 from the theoretical value of 9 mm to 4.5 mm.

[0081] In this embodiment, the maintenance trigger module generates a hierarchical maintenance instruction and outputs it to the operation panel 5. As an option, when both the weight anomaly and the leakage current exceed the standard are satisfied, the system preferentially performs the following operations:

[0082] Activate the inclination adjustment component to forcibly correct the deformation;

[0083] Cut off the output circuit of the battery module 29;

[0084] Generate a fault code (such as E01: electrolyte leakage; E02: cell short circuit) and disposal suggestions. In some embodiments, the fault code is displayed on the OLED screen and synchronized with the cloud operation and maintenance platform to update the maintenance plan.

[0085] Working principle: When using the device of the present application, during the process of pulling the device into the working area through the handle 26, if the device walks on an inclined slope, the deformation control module collects the tilt angle θ of the gyroscope 33 and the microstrain value ε of the strain sensor 30, calculates the support height in real time, and drives the bottom inclination adjustment component to dynamically adjust the support height, controlling the diagonal deformation of the box body 1 to ≤5 mm. When the inclination adjustment component is running, the motor two 19 starts, drives the threaded rod 20 to rotate, and drives the moving block 21 to move back and forth along the outer wall of the threaded rod 20, thereby driving the movable rod 22 to adjust the angle, and then controlling the diagonal deformation of the box body 1 to ≤5 mm. At the same time, the rigid locking mode of the damper 24 is activated to suppress resonance.

[0086] When it reaches the working area and is put into use, open the second opening 15 and the chamber door 3, pull the mounting plate 9 to move in the mounting barrel 6, so that the fixing rod 11 drives the power cord to move out of the mounting barrel 6. Subsequently, start the motor one 13 through the operation panel 5, so that the rotating frame 34 rotates, thereby paying out the power cord. After the power cord is paid out to an appropriate length, the power cord plug can pass through the first opening 10, the second opening 15 and the through groove 4 into the operation room 2 and be inserted into the socket for power supply and use.

[0087] During the operation of the device, the sensor group will collect real-time data. The load cells 28 at the four corners of the box body 1 continuously capture the load data of each support point. The triaxial accelerometers 32 synchronously record the vibration intensity of the device. The temperature and humidity sensors 31 monitor the environmental changes. The leakage current detection unit tracks the insulation state between the battery cells. These data converge to the net weight analysis module at a millisecond speed. The environmental interference is eliminated through a dynamic compensation algorithm. For example, when the temperature rises by 1°C, the temperature drift error of the sensor is automatically corrected by the coefficient of 0.0023 in the formula. The vibration interference is compensated in the reverse direction according to the modulus of the acceleration vector by a proportional coefficient of 0.15. Finally, a calibrated net weight curve is generated. The system continuously analyzes the change trend of the calibrated weight and the leakage current value. When it is detected that the weight drops by more than 0.5% per hour or the leakage current breaks through 10 mA and lasts for half a minute, a multi-level response mechanism is immediately triggered, that is, the maintenance trigger module generates a maintenance instruction.

[0088] After the device is used, the motor 13 can be started in reverse, causing the rotating frame 34 to rotate, thereby quickly winding up the power cord.

[0089] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile energy storage device based on a construction site, comprising a box body (1) and a moving seat (16), characterized in that, The box body (1) and the moving seat (16) are connected by an inclination angle adjusting component. It uses a gyroscope (33) to sense the attitude change of the box body (1), drives the bottom actuator to dynamically adjust the support height, and controls the diagonal deformation of the box body within ≤5 mm, eliminating the risk of a sharp increase in leakage current caused by the compression and rupture of the insulating sheet between the battery cells. An installation barrel (6) penetrates through the outer wall of the box body (1). A second through port (15) is provided at the outlet of the installation barrel (6). A plurality of sliding grooves (7) penetrate through the outer wall of the installation barrel (6). A connecting rod (8) slides inside each sliding groove (7). One ends of the plurality of connecting rods (8) are connected to an installation disc (9), and the other ends are connected to a connecting ring (14). The inside of the connecting ring (14) is sleeved outside the installation barrel (6). A driving component is arranged on the outer wall of the installation disc (9) and is used to control a plurality of fixing rods (11) to automatically wind and unwind the power cord. A threaded rod (20) is arranged inside the box body (1). A sensor group is arranged inside the box body (1). The sensor group is electrically connected to a weight monitoring system. A battery module (29) is arranged inside the box body (1).

2. The mobile energy storage device based on the construction site according to claim 1, characterized in that, The inclination angle adjusting component includes two mounting seats (18). A threaded rod (20) rotates in the middle of the two mounting seats (18). The end of the threaded rod (20) is connected to a second motor (19). A moving block (21) is threadedly connected to the outer wall of the threaded rod (20). One ends of movable rods (22) rotate on both sides of the moving block (21), and the other ends rotate on a connecting seat (23). The top of the connecting seat (23) is mounted on the bottom of the box body (1). Side plates (17) are mounted on both sides of the moving seat (16), and the top ends of the outer walls thereof rotate at the bottom of the outer wall of the box body (1). A gyroscope (33) is mounted at the center of the bottom of the moving seat (16).

3. The mobile energy storage device based on a construction site according to claim 2, wherein Dampers (24) rotate on both sides of the outer wall of the moving seat (16), and the other ends rotate on the outer wall of the box body (1). The two groups of dampers (24) and the side plates (17) are respectively located at the four corners of the box body (1).

4. A mobile energy storage device based on a construction site according to claim 1, characterized in that, A fixing seat (25) is mounted on the outer wall of the box body (1). A handle (26) rotates on the top of the fixing seat (25).

5. The mobile energy storage device based on the construction site according to claim 1, characterized in that, An operation chamber (2) is opened on the outer wall of the box body (1). A chamber door (3) is provided at the opening of the operation chamber (2). An operation panel (5) is arranged inside the operation chamber (2). A through slot (4) penetrates between the operation chamber (2) and the box body (1).

6. The mobile energy storage device based on the construction site according to claim 1, characterized in that, The driving component includes a first motor (13). The outside of the first motor (13) is mounted on the outer wall of the installation disc (9). The driving end of the first motor (13) is connected to a rotating shaft rod (35) through a belt transmission member (12). A rotating frame (34) is mounted on the outer wall of the rotating shaft rod (35). A plurality of fixing rods (11) are arranged in a rectangular array on the outer wall of the rotating frame (34). A first through port (10) penetrates through the middle of the installation disc (9). A second through port (15) penetrates through the middle of the installation barrel (6).

7. A mobile energy storage device based on a construction site according to claim 1, characterized in that The sensor group includes four load cells (28), and the four load cells (28) are respectively arranged at four corners of the bottom of the box body (1). A triaxial accelerometer (32) is installed at the geometric center of the inner bottom of the box body (1). A strain sensor (30) is installed at the center of the upper cover of the battery module (29), and a temperature and humidity sensor (31) is installed on the top of the battery module (29).

8. A mobile energy storage device based on a construction site according to claim 7, characterized in that, The weight monitoring system includes: A data acquisition module, which is used to obtain the data of the sensor group and the leakage current detection unit in real time; A net weight analysis module, which is used to calculate the calibrated net weight through a dynamic compensation algorithm; An abnormality determination module, which determines that the weight is abnormal when the following conditions are met: The continuous change rate of the calibrated net weight > 0.5% / h; The leakage current > 10 mA and lasts for 30 seconds; A deformation control module, which uses a gyroscope (33) to sense the tilt angle of the box body (1) in real time, drives the inclination adjustment assembly to dynamically adjust the support height, and controls the diagonal deformation of the box body (1) to ≤ 5 mm; A maintenance trigger module, which generates a maintenance instruction when an abnormality is detected.

9. The mobile energy storage device based on a construction site according to claim 8, wherein The dynamic compensation algorithm is as follows: where T is the real-time temperature of the temperature and humidity sensor (31), is the vibration vector of the triaxial accelerometer (32), W 校准 is the calibrated weight value, W 原始 is the original measured value of the load cell (28).

10. A mobile energy storage device based on a construction site according to claim 8, characterized in that, The calculation formula for the support height in the deformation control module is as follows: ΔH = 2.5sinθ + 0.08ε; where ε is the microstrain value of the strain sensor (30), and ΔH is the support height.

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