Convenient-to-install energy storage device for power grid acquisition

Abstract

The invention relates to a power grid acquisition energy storage device convenient to install, which comprises a power grid energy storage box and an installation base frame, an installation mechanism is arranged between the power grid energy storage box and the installation base frame, the installation mechanism comprises a fixed frame, and the fixed frame is fixedly connected to the outer side of the installation base frame. A central keel and supporting frames on the two sides are slidably connected to the middle of the fixed frame, locking pieces are arranged on the outer sides of the supporting frames, an induction piece is arranged in the central keel, and the induction piece comprises a fixed pile, a central shaft, a temperature-sensitive metal sheet, a top column, a pressing column and a reset spring; the two temperature-sensitive metal sheets are fixedly connected to the two ends of the center shaft respectively. The dynamic compensation effect on the gap between the mounting nails and the gap between the gravity pressing and locking block and the wedge-shaped locking block is achieved, connection looseness caused by temperature difference is effectively avoided, and it is guaranteed that the device stably works for a long time in the mountainous area environment with the large day and night temperature difference.

Description

Technical Field

[0001] This invention relates to the field of power grid peak-valley energy storage equipment, specifically to an energy storage device for power grid data acquisition that is easy to install. Background Technology

[0002] In power system construction, energy storage devices for power grid data acquisition are core components ensuring the continuous and stable operation of power grid data acquisition equipment in remote areas. They are widely used in power grid data acquisition points in mountainous and pastoral areas. These areas are generally characterized by large diurnal temperature variations, complex environmental conditions, and difficulties in the rapid arrival of maintenance personnel and equipment. The energy storage device needs to be securely connected to the mounting base through an installation mechanism to ensure a reliable assembly state even under alternating temperature differences and slight vibrations. This avoids safety hazards such as power grid data acquisition interruptions, energy storage device displacement, or even falling due to loose connections. Therefore, extremely high requirements are placed on the gap stability of the energy storage device after installation.

[0003] In existing technologies, the connection between the energy storage device for power grid data acquisition and the mounting base is mostly a traditional rigid fixing structure. The working method is usually as follows: the fixed frame is bolted to the mounting base, and then the energy storage box is locked to the fixed frame by mounting nails or simple wedge-shaped blocks. Some devices will add ordinary springs to the locking part to achieve preliminary pre-tightening.

[0004] However, existing devices lack sensing and adaptation structures for temperature differences, and cannot detect changes in assembly gaps caused by changes in ambient temperature. When temperature fluctuations cause metal mounting components to expand and contract, gaps will occur between the mounting pins and the fixing structure, and between the locking blocks and the mating parts. These gaps cannot be compensated, and the connecting parts will become loose. Under the effect of the day-night temperature difference cycle in mountainous areas, the loosening problem will continue to worsen, eventually leading to a decrease in the stability of the connection between the energy storage device and the mounting base, and even affecting the normal operation of the grid data acquisition equipment. It is difficult to meet the long-term stable operation requirements of energy storage devices in complex temperature difference environments such as mountainous areas. Summary of the Invention

[0005] The purpose of this invention is to provide an easy-to-install energy storage device for grid data acquisition, aiming to improve the problem in the prior art where the device cannot sense changes in the assembly gap caused by changes in ambient temperature, resulting in loose connections of the connecting parts.

[0006] The objective of this invention is achieved through the following technical solution: an energy storage device for grid data acquisition that is easy to install, comprising a grid energy storage box and a mounting base, wherein an installation mechanism is provided between the grid energy storage box and the mounting base; The installation mechanism includes a fixed frame, which is fixedly connected to the outside of the installation base frame. A central keel and two side support frames are slidably connected in the middle of the fixed frame. Locking devices are provided on the outside of the support frames, and sensing devices are provided inside the central keel. The sensing element includes a fixed stake, a central shaft, a temperature-sensitive metal sheet, a top column, a bottom column, and a return spring. The fixed stake is fixedly assembled on the inner side of the central keel. Two temperature-sensitive metal sheets are respectively fixedly connected to the two ends of the central shaft. The top column and the bottom column are respectively set on the upper and lower sides of the temperature-sensitive metal sheet. One end of the temperature-sensitive metal sheet is fixedly connected to the bottom end of the top column, and the other end is fixedly connected to the top end of the bottom column. The return spring is sleeved on the outer side of the bottom column. One end of the return spring is fixedly connected to the bottom of the fixed stake, and the other end is fixedly connected to the bottom end of the bottom column. The outer sides of the top column and the bottom column are slidably connected to the inner side of the fixed stake.

[0007] As a further description of the above technical solution: The top of the top column abuts against a reinforcing half-ring, and a fixing half-ring is fixedly connected to the inner side of the central keel. The fixing frame is provided with mounting nails for fixing the power grid energy storage box. The reinforcing half-ring and the fixing half-ring enclose and form an annular channel for accommodating the mounting nails. As a further description of the above technical solution: The central keel is equipped with a compensation component, which includes a sliding shaft, a hinge rod, a range extender tube, a connecting shaft, a repulsive magnetic block, and a lifting magnetic block. The bottom end of the lowering column is rotatably connected to one end of the sliding shaft through the hinge rod. The range extender tube is fixedly installed inside the fixed frame and has a pressure channel. The other end of the sliding shaft slides through the pressure channel of the range extender tube. The connecting shaft is slidably assembled at the end of the range extender tube away from the sliding shaft, and the sliding shaft and the connecting shaft form a multiple distance transmission cooperation through the pressure channel. As a further description of the above technical solution: The repulsive magnetic block is fixedly connected to the end of the connecting shaft, the lifting magnetic block is disposed above the repulsive magnetic block, and the end face of the lifting magnetic block opposite to the repulsive magnetic block is set as a wedge-shaped surface, and the top end of the lifting magnetic block abuts against the locking member; As a further description of the above technical solution: The locking component includes a drive rod, a sliding column, a wedge-shaped locking block, and a telescopic sleeve. The drive rod is fixedly connected to the sliding column, the sliding column is slidably connected to the inside of the wedge-shaped locking block, the wedge-shaped locking block is fixedly connected to the telescopic sleeve, the telescopic sleeve is fixedly installed on the outside of the support frame, and the inside of the telescopic sleeve is provided with an internal spring. One end of the internal spring is fixedly connected to the inner wall of the telescopic sleeve, and the other end is fixedly connected to the wedge-shaped locking block. As a further description of the above technical solution: The locking component also includes a gravity locking block, which is slidably connected to the inner side of the fixed frame, and the wedge-shaped locking block abuts against the gravity locking block under the action of the spring inside the telescopic sleeve. As a further description of the above technical solution: The locking component also includes a fixing post, which is fixedly connected inside the fixing frame, and a pre-tightening spring is sleeved on the outside of the fixing post. The top end of the pre-tightening spring is fixedly connected to the bottom of the lifting magnetic block, and the top of the lifting magnetic block abuts against the bottom of the wedge-shaped locking block. As a further description of the above technical solution: The temperature-sensitive metal sheet is a double-layer heterogeneous metal laminate structure, and its two ends are fixedly connected to the central shaft by welding.

[0008] Compared with the prior art, the advantages of the present invention are as follows: 1. The temperature-sensitive metal plate at the fixed pile inside the central keel senses the temperature difference deformation, causing the top column to move upward and push the reinforcing half-ring to compress and fix the half-ring. At the same time, it causes the lower pressure column to move downward over the resistance of the return spring. This movement is converted into horizontal sliding of the sliding shaft through the hinge rod. Then, through the pressurization channel inside the range extender tube, it causes the connecting shaft and the repulsive magnetic block to slide downward towards the lifting magnetic block. With the help of the wedge-shaped surface cooperation between the repulsive magnetic block and the lifting magnetic block, the greater the temperature difference, the greater the repulsive force. This in turn causes the lifting magnetic block to increase the clamping force on the wedge-shaped locking block, achieving a dynamic compensation effect for the gap between the mounting nail and the gap between the gravity pressure locking block and the wedge-shaped locking block. This effectively avoids the connection loosening caused by temperature difference and ensures the long-term stable operation of the device in mountainous environments with large day-night temperature differences.

[0009] 2. The driving rod of the locking component drives the sliding column to slide within the wedge-shaped locking block, causing the wedge-shaped locking block to compress the telescopic sleeve and retract. This, combined with the sliding groove of the fixed frame, enables precise guidance and insertion of the grid energy storage box. Initial positioning and fixation are then achieved through the mounting nails. After releasing the driving rod, the spring inside the telescopic sleeve drives the wedge-shaped locking block to reset and press against the gravity locking block. Simultaneously, the pre-tightening spring on the outside of the fixed column drives the lifting magnetic block to press against the bottom of the wedge-shaped locking block, forming multi-directional pressing support. This achieves a convenient, precise, and stable initial installation effect between the grid energy storage box and the mounting base, significantly reducing the difficulty of installation operations, improving installation efficiency, and adapting to the rapid deployment needs of complex scenarios such as outdoor and mountainous areas. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main body of an embodiment of an easy-to-install grid data acquisition energy storage device proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the main body of an embodiment of an easy-to-install grid data acquisition energy storage device proposed in this invention. Figure 2 ; Figure 3 This is a plan view of the installation mechanism of an energy storage device for power grid data acquisition that is easy to install, as proposed in this invention. Figure 4This is a schematic diagram of the locking component of a power grid data acquisition energy storage device that is easy to install, as proposed in this invention. Figure 5 This is a schematic diagram of the inductor of an energy storage device for power grid data acquisition that is easy to install, as proposed in this invention. Figure 6 This is a schematic diagram of the structure of a compensation component for a power grid data acquisition energy storage device that is easy to install, as proposed in this invention. Figure 7 for Figure 4 Enlarged view of point A in the middle; Figure 8 for Figure 5 Enlarged view of point B in the middle; Figure 9 This is a flowchart illustrating the operation of a power grid energy storage box, which is an easy-to-install power grid data acquisition device proposed in this invention.

[0011] Labeling Explanation: 1. Grid Energy Storage Box; 2. Mounting Base; 3. Mounting Mechanism; 31. Fixed Frame; 32. Central Keel; 33. Support Frame; 34. Locking Component; 341. Telescopic Sleeve; 342. Wedge Locking Block; 343. Gravity Pressure Locking Block; 344. Drive Rod; 345. Sliding Column; 346. Fixed Column; 347. Lifting Magnetic Block; 348. Pre-tension Spring; 35. Sensing Component; 351. Mounting Pin; 352. Fixed Half Ring; 353. Fixed Pile; 354. Central Shaft; 355. Temperature-Sensitive Metal Sheet; 356. Top Column; 357. Reinforced Half Ring; 358. Downward Pressing Column; 359. Return Spring; 36. Compensating Component; 361. Sliding Shaft; 362. Hinge Rod; 363. Repulsive Magnetic Block; 364. Connecting Shaft; 365. Range Extender Tube; 366. Pressure Boosting Channel. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 8 The diagram shows an embodiment of an easy-to-install grid energy storage device provided by the present invention. The easy-to-install grid energy storage device includes a grid energy storage box 1 and a mounting frame 2. The grid energy storage box 1 realizes the storage of electrical energy and the energy supply related to grid acquisition, providing stable energy support for grid acquisition equipment. The mounting frame 2 provides a mounting foundation for all components of the device, ensuring the overall assembly stability of the device. An installation mechanism 3 is provided between the grid energy storage box 1 and the mounting frame 2. The installation mechanism 3 integrates various installation and compensation components, realizing the precise assembly and gap compensation functions of the grid energy storage box 1 and the mounting frame 2.

[0013] The installation mechanism 3 includes a fixed frame 31, which provides an installation carrier for components such as the central keel 32, support frame 33, and mounting nails 351. It also provides a sliding guide structure to ensure the insertion and positioning accuracy of the grid energy storage box 1. The fixed frame 31 is fixedly connected to the outside of the installation base 2, and the central keel 32 and the support frames 33 on both sides are slidably connected to the middle of the fixed frame 31. The central keel 32 provides installation space for the sensing element 35 and the compensation element 36, ensuring the integrated arrangement of related components. The support frames 33 provide stable installation support for the locking element 34, enhancing its stress stability. The locking element 34 is located on the outside of the support frame 33, achieving initial fixation and locking between the grid energy storage box 1 and the installation base 2, ensuring the connection stability during the initial installation phase. The central keel 32 contains a sensing element 35, which senses changes in ambient temperature and generates corresponding deformation, providing an initial power source for gap compensation.

[0014] The sensing element 35 includes a fixing post 353, a central shaft 354, a temperature-sensitive metal sheet 355, a top column 356, a bottom column 358, and a return spring 359. The fixing post 353 provides a fixed installation foundation for each component of the sensing element 35, ensuring the structural stability of the sensing element 35. The fixing post 353 is fixedly assembled on the inner side of the central keel 32. Two temperature-sensitive metal sheets 355 are respectively fixedly connected to both ends of the central shaft 354. The central shaft 354 provides fixed support for the temperature-sensitive metal sheets 355, ensuring the installation and positioning accuracy of the temperature-sensitive metal sheets 355. The temperature-sensitive metal sheet 355 has a double-layer heterogeneous metal laminate structure. The double-layer heterogeneous metal laminate structure improves the temperature difference deformation sensitivity and stability of the temperature-sensitive metal sheet 355, thereby ensuring uniform deformation force output. Both ends of the temperature-sensitive metal sheet 355 are fixedly connected to the central shaft 354 by welding. The welding fixing method strengthens the connection between the temperature-sensitive metal sheet 355 and the central shaft 354, preventing it from falling off during temperature difference cycling. The top post 356 and the bottom post 358 are respectively set on the upper and lower sides of the two temperature-sensitive metal sheets 355. The upper end of the upper temperature-sensitive metal sheet 355 is fixedly connected to the bottom end of the top post 356, and the lower end of the lower temperature-sensitive metal sheet 355 is fixedly connected to the top end of the bottom post 358. The top post 356 transmits the deformation force of the temperature-sensitive metal sheet 355 to drive the subsequent reinforcing semi-ring 357 to move. The bottom post 358 transmits the deformation force of the temperature-sensitive metal sheet 355 to trigger the gap compensation action of the compensation component 36. The return spring 359 is sleeved on the outside of the bottom post 358. One end of the return spring 359 is fixedly connected to the bottom of the fixed post 353, and the other end is fixedly connected to the bottom end of the bottom post 358. The return spring 359 provides a reset force for the bottom post 358, ensuring that the bottom post 358 returns to its initial position after the temperature difference changes, which is convenient for the next deformation trigger.

[0015] The top of the top column 356 abuts against a reinforcing semi-ring 357. The reinforcing semi-ring 357, together with the fixed semi-ring 352, compensates for the gap between the mounting pin 351 and the annular channel by squeezing action. The inner side of the central keel 32 is fixedly connected to the fixed semi-ring 352. The fixed semi-ring 352 and the reinforcing semi-ring 357 enclose the space for the mounting pin 351, and at the same time provide a squeezing support base for the reinforcing semi-ring 357. The fixed frame 31 is provided with mounting pins 351 for fixing the grid energy storage box 1. The mounting pins 351 realize the initial positioning and fastening of the grid energy storage box 1 and the mounting base 2 to ensure the connection stability in the early stage of installation. The reinforcing semi-ring 357 and the fixed semi-ring 352 enclose the annular channel for accommodating the mounting pin 351. The annular channel wraps and limits the mounting pin 351 to ensure the assembly accuracy of the mounting pin 351 and provides a working space for gap compensation. The central keel 32 is internally equipped with a compensation component 36. The compensation component 36 converts the deformation force of the sensing component 35 into a gap compensation force to achieve dynamic adjustment of the installation gap. The compensation component 36 includes a sliding shaft 361, a hinge rod 362, a range extender tube 365, a connecting shaft 364, a repulsive magnetic block 363, and a lifting magnetic block 347. The bottom end of the pressing column 358 is rotatably connected to one end of the sliding shaft 361 through the hinge rod 362. The hinge rod 362 realizes the change of movement direction, converting the vertical movement of the pressing column 358 into the horizontal movement of the sliding shaft 361. The sliding shaft 361 transmits horizontal motion force to provide power input for the movement of the connecting shaft 364. The range extender tube 365 is fixedly installed inside the fixed frame 31. The range extender tube 365 provides installation guidance for the sliding shaft 361 and the connecting shaft 364, and also accommodates the pressurization channel 366 structure. The pressurization channel 366 is opened inside the range extender tube 365. The pressurization channel 366 realizes the transmission amplification of the motion stroke of the sliding shaft 361 and the connecting shaft 364 by a multiple distance. The other end of the sliding shaft 361 slides through the pressurization channel 366 of the range extender tube 365. The connecting shaft 364 is slidably mounted on the end of the range extender tube 365 away from the sliding shaft 361. The sliding shaft 361 forms a multiple-distance transmission cooperation with the connecting shaft 364 through the pressurization channel 366. The connecting shaft 364 transmits the amplified motion force to drive the repulsive magnetic block 363 to move precisely. The repulsive magnetic block 363 is fixedly connected to the end of the connecting shaft 364. The repulsive magnetic block 363 cooperates with the lifting magnetic block 347 to generate a repulsive force to provide an upward clamping force for the lifting magnetic block 347. The lifting magnetic block 347 is set above the repulsive magnetic block 363, and the end faces of the lifting magnetic block 347 and the repulsive magnetic block 363 are set as wedge-shaped surfaces. The wedge-shaped surfaces realize the dynamic adjustment of the repulsive force as the distance decreases, improving the adaptability of the gap compensation. The lifting magnetic block 347 converts the repulsive force into a clamping force on the locking member 34 to compensate for the gap between the locking components. The top of the lifting magnetic block 347 abuts against the locking member 34. Locking component 34 includes a drive rod 344, a sliding column 345, a wedge-shaped locking block 342, and a telescopic sleeve 341. The drive rod 344 is fixedly connected to the sliding column 345. The drive rod 344 provides a force-applying component for manual operation, facilitating operator control of the locking component 34's movement. The sliding column 345 transmits the force from the drive rod 344 to push the wedge-shaped locking block 342 to retract. The sliding column 345 is slidably connected inside the wedge-shaped locking block 342. The wedge-shaped locking block 342 is fixedly connected to the telescopic sleeve 341. The wedge-shaped locking block 342 retracts to reserve installation space and resets to lock against gravity. Block 343 enhances the initial fixing effect. Telescopic sleeve 341 is fixedly installed on the outside of support frame 33. Telescopic sleeve 341 provides sliding guidance for wedge locking block 342 and provides installation space for internal spring. Telescopic sleeve 341 has an internal spring. The internal spring of telescopic sleeve 341 provides reset elastic force for wedge locking block 342 to ensure that it can automatically press against gravity locking block 343 after releasing drive rod 344. One end of the internal spring of telescopic sleeve 341 is fixedly connected to the inner wall of telescopic sleeve 341, and the other end is fixedly connected to wedge locking block 342.

[0016] The locking component 34 also includes a gravity locking block 343, which is slidably connected to the inner side of the fixed frame 31. The gravity locking block 343, together with the wedge locking block 342, forms a multi-directional lock by pressing, which strengthens the stability of the initial fixation of the power grid energy storage box 1. The wedge locking block 342 abuts against the gravity locking block 343 under the action of the spring inside the telescopic sleeve 341.

[0017] The locking component 34 also includes a fixing post 346, which is fixedly connected inside the fixing frame 31. The fixing post 346 provides a fixed installation base for the pre-tension spring 348 to ensure the stress stability of the pre-tension spring 348. The pre-tension spring 348 is sleeved on the outside of the fixing post 346. The pre-tension spring 348 provides a continuous pre-tension force for the lifting magnet 347 to ensure that the lifting magnet 347 always presses against the wedge-shaped locking block 342, thereby strengthening the multi-directional support effect of the initial fixation. The top of the pre-tension spring 348 is fixedly connected to the bottom of the lifting magnet 347, and the top of the lifting magnet 347 abuts against the bottom of the wedge-shaped locking block 342.

[0018] like Figure 9 The present invention also provides an embodiment that integrates a three-phase power failure backup power supply function on the basis of the original easy-to-install grid energy storage device. The core structure includes a grid energy storage box 1, a mounting base 2, a mounting mechanism 3, and a newly added three-phase power failure backup power supply module. The various structures work together to achieve the triple functions of convenient installation, temperature difference gap compensation, and uninterrupted power supply in the event of three-phase power failure. The overall system is suitable for complex application scenarios such as mountainous areas and remote transformer substations.

[0019] The grid energy storage box 1 has an added modular installation cavity. The backup power module is detachably connected to the fixed frame 31 through the adapter bracket, without affecting the assembly and movement of the original components such as the central keel 32 and the support frame 33. The fixed frame 31 of the installation mechanism 3 has reserved power wiring holes, and the edges of the holes are equipped with insulating protective sleeves to ensure wiring safety and not interfere with the locking action of the mounting nails 351. The power supply interface between the backup power module and the grid energy storage box 1 adopts an anti-misinsertion design to ensure wiring accuracy.

[0020] Grid energy storage box 1 includes: Front-end power supply and voltage regulation unit: Connected in series in the secondary circuit of the voltage transformer (3×57.7 / 100V), it adopts a flyback topology design for AC-DC voltage regulation circuit, achieving a wide voltage adaptive input of 50-120VAC and a stable DC bus voltage output. The total power of this unit is ≤6W, and the single-phase power is ≤2W. It is compatible with three-phase three-wire and three-phase four-wire wiring methods, meeting the requirements for low-power online power supply.

[0021] Three-phase voltage monitoring and logic control unit (core control unit): Equipped with multiple high-precision ADC chips and MCU controller, it synchronously samples the three-phase voltage and calculates the true RMS value. It has a built-in hardware comparator and software dual verification mechanism, and sets the switching threshold to 20% of the rated voltage. The mode switching is only triggered when all three-phase voltages are below this threshold for 1-2 seconds. It does not consume battery power during normal operation.

[0022] Battery Management Unit: Integrated BMS battery management system, compatible with 12V, ≥20Ah lithium iron phosphate batteries (for general environments). In cold regions, ternary lithium batteries can be used instead. Features charging power control, overcharge, over-discharge, overcurrent, short circuit, and temperature protection. Automatically stops charging when battery temperature exceeds 60℃. In low-temperature environments (≤-10℃), an intelligent heating system is activated to gently heat the battery before resuming charging, ensuring stable performance within the operating temperature range of -30℃ to +60℃.

[0023] Inverter and switching unit: Includes dual output ports. Port 1 is designed with DC-AC inverter + power frequency transformer, outputting 100VAC power at the same voltage level as the input, with a power of ≥20VA, suitable for the power supply requirements of three-phase energy meters; Port 2 generates 220VAC 50Hz sine wave power through DC-AC inverter, with a power of ≥20VA, for emergency power supply of the data acquisition terminal; The switching circuit adopts magnetic latching relay, driven by logic control unit, to realize the "break first, then turn on" switching sequence, with zero static power consumption and reliable operation.

[0024] Safety isolation and protection unit: The input, output and battery are protected by physical isolation (transformer, relay) and circuit design (diode, MOSFET reverse cutoff) to prevent power from flowing back from the output or battery to the input under any circumstances; the module housing is made of flame-retardant material with an IP54 protection rating, and is dustproof and waterproof. The surface is equipped with LED indicators for running, charging and fault status, which facilitates on-site observation of equipment operation.

[0025] Auxiliary function unit: Equipped with an independent charging interface, supporting external DC chargers or photovoltaic panels (12V input) for battery charging in special scenarios such as user-initiated power outages or seasonal power outages for agricultural irrigation; the interface adopts a waterproof plug design, which is physically separated from the main wiring port to avoid misconnection.

[0026] The working principle of the above backup power supply is as follows: Normal power supply status: The front-end power supply and voltage regulation unit draws power from the secondary circuit of the voltage transformer, which supplies power to the power grid acquisition equipment on the one hand, and charges the battery pack of the battery management unit on the other hand. The BMS system monitors the battery status in real time to ensure charging safety. Three-phase undervoltage state: The three-phase voltage monitoring and logic control unit monitors the three-phase voltage in real time. When it detects that the three-phase voltage is lower than the rated value by 20% and lasts for 1-2 seconds, it immediately drives the magnetic latching relay to switch from "online power supply / charging mode" to "battery discharge / output mode". Backup power supply status: The battery management unit controls the battery pack to discharge. After conversion by the inverter and switching unit, 100VAC power is output through port 1 and 220VAC power is output through port 2, providing uninterrupted power supply to the three-phase energy meter and the data acquisition terminal respectively. When the load is ≤8VA, the battery life is ≥20 hours (considering low temperature degradation). Power supply restoration: When the three-phase voltage recovers to more than 80% of the rated value and remains so for 3 seconds, the logic control unit drives the relay to switch back to "online power draw / charging mode", the battery pack resumes charging, and the backup power module returns to standby mode.

[0027] Working principle: When installing the grid energy storage box 1 and the mounting base 2, first align the grid energy storage box 1 precisely with the corresponding installation position of the mounting base 2 to ensure the accuracy of subsequent assembly.

[0028] Manually pull the drive rod 344 on the locking component 34. Driven by the drive rod 344, the sliding column 345, which is fixed to the drive rod 344, slides inside the wedge-shaped locking block 342. This sliding action generates a lateral thrust on the wedge-shaped locking block 342, thereby causing the wedge-shaped locking block 342 to compress the telescopic sleeve 341 and retract towards the center position, reserving sufficient space for the insertion of the grid energy storage box 1. After the wedge-shaped locking block 342 retracts into place, slowly insert the rear side of the grid energy storage box 1 along the preset sliding groove on the fixed frame 31, so that the grid energy storage box 1 and the fixed frame 31 form a preliminary sliding fit, ensuring the accuracy of the installation position of the grid energy storage box 1. Screw the mounting nails 351 into the reserved mounting holes on the fixed frame 31. The fastening action of the mounting nails 351 realizes the preliminary positioning and fixation of the grid energy storage box 1 and the mounting base 2, completing the basic fixing stage of the installation.

[0029] After initial fixing, the previously pulled drive rod 344 is released. At this time, the spring inside the telescopic sleeve 341 is no longer under compression and begins to release elastic potential energy, pushing the wedge-shaped locking block 342 to reset to both sides. During the reset process, the wedge-shaped locking block 342 will precisely abut against the gravity locking block 343 in the locking component 34. The abutment between the two further strengthens the initial fixing effect of the grid energy storage box 1. At the same time, the pre-tensioning spring 348 on the outside of the fixing column 346 is in a pre-tensioned state. Under its elastic force, the lifting magnetic block 347 moves upward and simultaneously abuts against the bottom of the wedge-shaped locking block 342, forming multi-directional abutment support, and finally completing the initial fixing and installation of the entire grid energy storage box 1 and the mounting base 2.

[0030] When the device operates in mountainous environments or other environments with significant diurnal temperature variations, the temperature-sensitive metal sheet 355 installed on the inner fixing pile 353 of the central keel 32 will deform and expand due to temperature changes. This deformation of the temperature-sensitive metal sheet 355 simultaneously exerts force on the top column 356 and the bottom column 358 on both sides. On one hand, it pushes the top column 356 upwards; on the other hand, it causes the bottom column 358 to overcome the elastic resistance of the return spring 359 and move downwards. During the upward movement of the top column 356, its top tip simultaneously pushes against the reinforcing half-ring 357, causing it to move closer to the fixed half-ring 352 and further compress the fixed half-ring 352. Through the compressive cooperation between the reinforcing half-ring 357 and the fixed half-ring 352, the gap between them and the mounting pin 351 caused by temperature changes is compensated, preventing the mounting pin 351 from loosening. When the downward pressing column 358 moves downward, the vertical linear motion is converted into the horizontal outward sliding of the sliding shaft 361 through the hinge rod 362 hinged at its bottom end, thus realizing the effective conversion of the motion direction.

[0031] The sliding shaft 361 slides horizontally along the pressurization channel 366 inside the range extender tube 365. Under the transmission action of the pressurization channel 366, the connecting shaft 364, which forms a multiple-distance transmission engagement with the sliding shaft 361, moves horizontally outward, and the movement distance is several times that of the sliding shaft 361. The outward movement of the connecting shaft 364 causes the repulsive magnetic block 363 fixed at its end to slide synchronously downward towards the lifting magnetic block 347. Since the end faces of the repulsive magnetic block 363 and the lifting magnetic block 347 are designed as wedge-shaped surfaces, the repulsive force between the two gradually increases as the repulsive magnetic block 363 gradually approaches. Furthermore, the greater the temperature difference, the greater the deformation of the temperature-sensitive metal sheet 355, which in turn increases the movement of the downward pressure column 358, the sliding shaft 361, and the connecting shaft 364. The sliding distance of the repulsive magnetic block 363 towards the lifting magnetic block 347 also increases, further increasing the repulsive force of the repulsive magnetic block 363 on the lifting magnetic block 347. With the help of this gradually increasing repulsive force, the clamping force of the lifting magnetic block 347 on the wedge-shaped locking block 342 is simultaneously enhanced, thereby dynamically compensating for the gap between the gravity locking block 343 and the wedge-shaped locking block 342 caused by temperature changes or vibrations. This continuously strengthens the clamping effect of the wedge-shaped locking block 342 on the gravity locking block 343, ultimately ensuring that the connection between the entire power grid energy storage box 1 and the mounting base 2 remains stable, preventing the connection from loosening due to environmental temperature differences and affecting the normal operation of the device.

Claims

1. An easy-to-install grid energy storage device, comprising a grid energy storage box (1) and a mounting frame (2), characterized in that: An installation mechanism (3) is provided between the power grid energy storage box (1) and the installation base frame (2); The installation mechanism (3) includes a fixed frame (31), which is fixedly connected to the outside of the installation base frame (2). The middle part of the fixed frame (31) is slidably connected to a central keel (32) and support frames (33) on both sides. The outside of the support frame (33) is provided with a locking element (34), and the inside of the central keel (32) is provided with a sensing element (35). The sensing element (35) includes a fixed post (353), a central shaft (354), a temperature-sensitive metal sheet (355), a top post (356), a bottom post (358), and a return spring (359). The fixed post (353) is fixedly assembled on the inner side of the central keel (32). The two temperature-sensitive metal sheets (355) are respectively fixedly connected to the two ends of the central shaft (354). The top post (356) and the bottom post (358) are respectively arranged on the upper and lower sides of the temperature-sensitive metal sheet (355). One end of the temperature-sensitive metal sheet (355) is fixedly connected to the bottom end of the top column (356), and the other end is fixedly connected to the top end of the lower pressure column (358). The return spring (359) is sleeved on the outside of the lower pressure column (358), and one end of the return spring (359) is fixedly connected to the bottom of the fixed pile (353), and the other end is fixedly connected to the bottom end of the lower pressure column (358). The outside of the top column (356) and the lower pressure column (358) are slidably connected to the inside of the fixed pile (353).

2. The easily installable energy storage device for power grid data acquisition according to claim 1, characterized in that: The top of the top column (356) abuts against a reinforcing half ring (357), and a fixing half ring (352) is fixedly connected to the inner side of the central keel (32). The fixing frame (31) is provided with mounting nails (351) for fixing the grid energy storage box (1). The reinforcing half ring (357) and the fixing half ring (352) enclose each other to form an annular channel for accommodating the mounting nails (351).

3. The easily installable energy storage device for power grid data acquisition according to claim 1, characterized in that: The central keel (32) is provided with a compensation component (36), which includes a sliding shaft (361), a hinge rod (362), a range extender tube (365), a connecting shaft (364), a repulsive magnetic block (363), and a lifting magnetic block (347). The bottom end of the lowering column (358) is rotatably connected to one end of the sliding shaft (361) through the hinge rod (362). The range extender tube (365) is fixedly installed inside the fixed frame (31). A pressure boosting channel (366) is provided inside the range extender tube (365). The other end of the sliding shaft (361) slides through the pressure boosting channel (366) of the range extender tube (365). The connecting shaft (364) is slidably assembled at the end of the range extender tube (365) away from the sliding shaft (361). The sliding shaft (361) and the connecting shaft (364) form a multiple distance transmission cooperation through the pressure boosting channel (366).

4. The easily installable energy storage device for power grid data acquisition according to claim 3, characterized in that: The repulsive magnetic block (363) is fixedly connected to the end of the connecting shaft (364), the lifting magnetic block (347) is disposed above the repulsive magnetic block (363), and the end face of the lifting magnetic block (347) opposite to the repulsive magnetic block (363) is set as a wedge-shaped surface, and the top end of the lifting magnetic block (347) abuts against the locking member (34).

5. The easily installable energy storage device for power grid data acquisition according to claim 1, characterized in that: The locking component (34) includes a drive rod (344), a sliding column (345), a wedge-shaped locking block (342), and a telescopic sleeve (341). The drive rod (344) is fixedly connected to the sliding column (345), and the sliding column (345) is slidably connected to the inside of the wedge-shaped locking block (342). The wedge-shaped locking block (342) is fixedly connected to the telescopic sleeve (341), and the telescopic sleeve (341) is fixedly installed on the outside of the support frame (33). The inside of the telescopic sleeve (341) is provided with an internal spring. One end of the internal spring of the telescopic sleeve (341) is fixedly connected to the inner wall of the telescopic sleeve (341), and the other end is fixedly connected to the wedge-shaped locking block (342).

6. The energy storage device for power grid data acquisition that is easy to install according to claim 5, characterized in that: The locking component (34) also includes a gravity locking block (343), which is slidably connected to the inner side of the fixed frame (31). The wedge-shaped locking block (342) abuts against the gravity locking block (343) under the action of the spring inside the telescopic sleeve (341).

7. The easily installable energy storage device for power grid data acquisition according to claim 6, characterized in that: The locking component (34) also includes a fixing post (346), which is fixedly connected to the inside of the fixing frame (31), and a pre-tightening spring (348) is sleeved on the outside of the fixing post (346). The top of the pre-tightening spring (348) is fixedly connected to the bottom of the lifting magnetic block (347), and the top of the lifting magnetic block (347) abuts against the bottom of the wedge-shaped locking block (342).

8. The easily installable energy storage device for power grid data acquisition according to claim 1, characterized in that: The temperature-sensitive metal sheet (355) is a double-layer heterogeneous metal stacked structure, and the two ends of the temperature-sensitive metal sheet (355) are fixedly connected to the central shaft (354) by welding.

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