Intelligent energy storage ring network box based on distributed control

Abstract

The application relates to the technical field of energy storage ring network boxes, in particular to an intelligent energy storage ring network box based on distributed control, a box body and multiple groups of air tanks installed in the box body, the box body is divided into an air tank area and an energy storage area through a fireproof heat insulation partition plate, the energy storage area is divided into a battery cabin, a power conversion cabin and a control cabin through the fireproof heat insulation partition plate, an external circulation heat exchange part is installed in the air tank area, the external circulation heat exchange part comprises external circulation parts corresponding to each group of air tanks, the multiple external circulation parts share one heat exchange box for circulating heat exchange, and each group of air tanks is isolated from faults through the corresponding external circulation part, an energy storage part is installed in the energy storage area, the energy storage part is composed of four foot supports, multiple vertically-distributed battery module units and a pressing frame used for limiting the multiple stacked battery module units. The application can cut off the air path and realize physical isolation under the fault condition, avoids the diffusion and pollution of the remaining air tanks by the fault gas, and can quickly disassemble and assemble the battery module.

Description

Technical Field

[0001] This invention relates to the field of energy storage ring network box technology, specifically to an intelligent energy storage ring network box based on distributed control. Background Technology

[0002] With the advancement of integrated power generation, grid-load, and energy storage construction in distribution networks, intelligent energy storage ring network boxes, as integrated outdoor equipment combining high-voltage ring network power distribution, electrochemical energy storage, power conversion, and intelligent management, have become the core carrier for voltage regulation of end-loads in distribution areas, distributed renewable energy consumption, and power supply for critical load equipment. Among them, gas-insulated ring network switchgear relies on sealed insulating gas to achieve high protection and maintenance-free characteristics, making it the mainstream technical solution for outdoor ring network power distribution units. The energy storage battery modules are arranged in a multi-layer stacked form within the battery compartment, and the stability and ease of disassembly and assembly of its installation structure directly determine the equipment's operation and maintenance efficiency and operational reliability.

[0003] In existing technologies, to ensure the protective performance of the insulating gas inside the gas chamber, it is necessary to maintain the gas chamber in a slightly positive pressure state. However, conventional gas-filled ring main units rely solely on natural convection heat dissipation from the shell. When operating under high current and high outdoor temperatures in summer for extended periods, the insulating gas inside the gas chamber will rapidly heat up, leading to increased internal pressure. This places significant demands on the stability of the gas chamber. Furthermore, excessively high temperatures can easily cause the insulating gas to decompose, directly damaging the insulating quality of the protective gas, exacerbating the greenhouse effect, and accelerating the thermal aging of components inside the gas chamber. Under low-temperature conditions, the internal temperature of the gas chamber decreases, causing the internal pressure to fall below the slightly positive pressure state, which also affects the protective performance of the insulating gas. In addition, for energy storage ring main units with multiple gas holders sharing a circulating air duct and heat exchange core, when a single gas holder experiences internal arcing or insulating gas contamination, the faulty gas can easily diffuse along the circulating air duct to other gas holders, causing multi-circuit continuous insulation failure. Meanwhile, existing energy storage battery modules mostly use bolt-fixed multi-layer stacking, requiring the removal of fasteners one by one for on-site disassembly, assembly, and maintenance, resulting in low work efficiency and difficulty in operating in confined outdoor spaces. In addition, the top pressing mechanism is mostly a fixed integral pressure plate, which can easily cause the stacked frame to expand and deform outward under long-term vertical loads. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent energy storage ring network box based on distributed control to solve the problems in the prior art.

[0005] The objective of this invention can be achieved through the following technical solutions: The intelligent energy storage ring network box based on distributed control includes a box body and multiple gas holders installed inside the box body. The inside of the box body is divided into a gas holder area and an energy storage area by fireproof and heat-insulating partitions. The energy storage area is further divided into a battery compartment, a power conversion compartment, and a control compartment by fireproof and heat-insulating partitions. An external circulation heat exchange section is located inside the gas holder area where multiple gas holders are installed. The external circulation heat exchange section includes an external circulation component corresponding to each gas holder. Multiple external circulation components share a heat exchange box for circulating heat exchange, and each gas holder is isolated from failure through the corresponding external circulation component. The energy storage unit is installed inside the battery compartment of the energy storage area. The energy storage unit consists of four feet, multiple vertically distributed battery module units, and a pressure frame for limiting the stacked battery module units.

[0006] As a preferred embodiment of the intelligent energy storage ring network box of the present invention, the external circulation heat exchange unit includes a U-shaped frame fixed inside the box body, a gas box fixedly installed on the top of the U-shaped frame, a box cover detachably installed on one side of the gas box, a processing cavity is formed between the box cover and the gas box in the snap-fit ​​state, and a semiconductor cooling chip for regulating the temperature of the gas entering the processing cavity is installed on the inside of the box cover.

[0007] As a preferred embodiment of the intelligent energy storage ring network box of the present invention, the processing cavity formed between the box cover and the air box includes two air chambers and a serpentine air channel disposed between the two air chambers. An air inlet pipe and an air return pipe are respectively connected between the corresponding ends of the two air chambers and the serpentine air channel. Multiple heat-conducting rods are fixedly disposed inside the serpentine air channel, and the end of each heat-conducting rod near the box cover is in contact with the corresponding side of the semiconductor cooling chip.

[0008] As a preferred embodiment of the intelligent energy storage ring network box of the present invention, the external circulation component includes two L-shaped pipes, one end of which is connected to the gas box and is respectively connected to two gas chambers, and the other end of each L-shaped pipe is connected to the gas chamber of the corresponding gas holder. Ball valves are installed on both L-shaped pipes, and a one-way valve is also installed on the L-shaped pipe used to transport the gas after heat treatment.

[0009] As a preferred embodiment of the intelligent energy storage ring network box of the present invention, the external circulation component further includes a horizontal seat fixed on the outside of the air box and corresponding to each group of L-shaped pipes. A vertical rod is rotatably installed between the two horizontal seats through a bearing. The two ends of the vertical rod are respectively fixedly connected to the valve core of the corresponding ball valve. A disc is fixedly sleeved on the outside of the vertical rod, and an electric push rod is fixedly installed on the top of the disc. The output end of the electric push rod is fixedly connected to a worm gear, which is slidably sleeved on the outside of the corresponding vertical rod through a retainer. Both ends of the outer side of the air box are fixedly provided with vertical seats, and a worm gear that meshes with the worm gear is rotatably installed between the two vertical seats through a bearing.

[0010] As a preferred embodiment of the intelligent energy storage ring network box of the present invention, the external circulation heat exchange section further includes a vertical shaft fixed inside the corresponding air chamber. A cylindrical cavity is opened at the upper end of the vertical shaft, and an air pipe connected to the cylindrical cavity is provided on the outer side of the vertical shaft. An impeller disk is rotatably installed at the upper end of the vertical shaft through a bearing. Inner blades and outer blades are respectively provided on the inner and outer sides of the impeller disk in a ring-shaped uniform distribution. The air outlet end of the L-shaped pipe used for air return is directly opposite the air receiving position of the outer blades and the air pipe.

[0011] As a preferred embodiment of the intelligent energy storage ring network box of the present invention, the foot includes a base fixed inside the box body, a sliding groove is provided in the middle of the base, a slide block is slidably connected inside the sliding groove, a recessed cavity is provided on the top of the slide block, a spring is fixedly connected between one end of the slide block and the inner wall of the sliding groove, and a positioning component for fixing the corresponding battery module unit is also provided on the top of the slide block.

[0012] As a preferred embodiment of the intelligent energy storage ring network box of the present invention, the battery module unit includes four square columns, and a side plate is fixedly connected between two square columns on the same side. The bottom end of each square column of the battery module unit at the lowest end is fixedly connected with a column foot inserted into the cavity. The battery module is slidably installed between two side plates that are arranged opposite to each other. Both of the two side plates have straight channels on opposite sides, and both ends of the bottom of the two straight channels have sinking channels. A triangular prism is fixedly installed inside the sinking channel at the front end of the propulsion direction, and a push seat and a push column are also movably installed inside the sinking channel at the front end of the propulsion direction. A swing plate is installed at one end of the top of the triangular prism. The push seat, push column and swing plate are all set as elastic structures.

[0013] As a preferred embodiment of the intelligent energy storage ring network box of the present invention, the pressure frame includes a rectangular frame and a clamping member installed on both sides of the rectangular frame. Both ends of the top of the rectangular frame are equipped with swing arms for limiting the clamping state of the corresponding clamping member.

[0014] As a preferred embodiment of the intelligent energy storage ring network box of the present invention, the clamping member includes a stud fixed in the middle of the outer side of the rectangular frame, a sleeve threaded onto the outside of the stud, a clamping plate fixedly connected to one end of the sleeve, and multiple locking pins evenly distributed in a ring fixed on the outside of the sleeve.

[0015] The beneficial effects of this invention are: 1. By sharing a single heat exchange core among multiple gas holders, this invention can effectively reduce equipment costs and space requirements. Furthermore, each gas holder is equipped with an independent ball valve and a clutch-type drive mechanism, which can independently cut off the gas path to achieve physical isolation in case of failure, preventing the spread of faulty gas and contamination of other gas holders, thus greatly improving the overall fault tolerance and reliability of the equipment. 2. This invention utilizes the kinetic energy of the circulating gas itself to drive the rotation of an impeller disk with double-layer blades in the gas chamber, thereby agitating the gas in the gas chamber to form a uniform swirling flow, effectively eliminating local overheating areas, and eliminating the need to install an electric fan and a through shaft inside the gas chamber, thus avoiding the problem of shaft seal leakage from the root, extending the airtight life of the gas holder and the maintenance-free cycle, and at the same time, achieving the goal of reducing energy consumption. 3. This invention uses a serpentine air passage combined with a heat exchange structure of multiple heat-conducting rods to extend the gas heat exchange path and increase the heat exchange area. Combined with a semiconductor cooling chip, it achieves bidirectional precise temperature control, which can cool down at high temperatures and heat up at low temperatures, making it fully adaptable to complex outdoor temperature environments. 4. This invention achieves automatic vertical positioning when the side plate of the battery module unit is pulled into place by adopting a structure of straight channel and sunken channel. The entire process can be completed without tools. The elastic push seat and swing plate structure assist the module in entering and leaving the slot, and the operation is smooth and without jamming, which greatly improves the operation and maintenance efficiency. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first-view perspective; Figure 2 This is a schematic diagram of the overall structure of the invention from a second perspective; Figure 3 This is a schematic diagram of the assembly of the external circulation heat exchanger and the gas holder of the present invention; Figure 4 This is a schematic diagram of the external circulation heat exchange section of the present invention; Figure 5 This is a schematic diagram of the gas box structure of the external circulation heat exchanger of the present invention; Figure 6 This is a schematic diagram of the box cover structure of the external circulation heat exchange section of the present invention; Figure 7 This is a schematic diagram of the gas chamber structure of the gas holder of the present invention; Figure 8 This is a schematic diagram of the energy storage section of the present invention; Figure 9 This is a schematic diagram of the foot structure of the energy storage unit of the present invention; Figure 10 This is the present invention. Figure 9 Enlarged schematic diagram of section A in the middle; Figure 11 This is a partial structural diagram of the battery module unit of the energy storage section of the present invention; Figure 12 This is a schematic diagram of the pressure frame structure of the energy storage section of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Fireproof and heat-insulating partition; 3. Gas holder; 4. External circulation heat exchanger; 41. U-shaped frame; 42. Gas box; 43. Box cover; 44. Semiconductor refrigeration chip; 45. Gas chamber; 46. Serpentine gas duct; 47. Heat-conducting rod; 48. Inlet pipe; 49. Return pipe; 410. Vertical seat; 411. Horizontal seat; 412. Vertical rod; 413. Ball valve; 414. L-shaped tube; 415. One-way valve; 416. Worm gear; 417. Disc; 418. Electric push rod; 419. Worm; 420. Vertical shaft; 421. Gas pipe; 422. Impeller disc; 423. Inner blade; 424. Outer blade 5. Energy storage unit; 51. Foot; 511. Base; 512. Slide; 513. Protruding column; 514. Telescopic fastener; 515. Cylinder; 516. Insert rod; 517. Restriction groove; 518. Toggle lever; 52. Battery module unit; 521. Square column; 522. Column foot; 523. Side plate; 524. Straight channel; 525. Sunk channel; 526. Push seat; 527. Push column; 528. Triangular column; 529. Swing plate; 53. Pressure frame; 531. Rectangular frame; 532. Swing arm; 533. Tightening component; 5331. Stud; 5332. Sleeve; 5333. Clamping post; 5334. Clamping plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The intelligent energy storage ring main unit based on distributed control of this invention is an indispensable integrated power distribution equipment component on the distribution network side of the smart grid industry. It is used to support and protect high-voltage ring mains gas holders and energy storage power conversion units, realizing ring mains power distribution transfer, distributed temperature control, and single-loop fault isolation, supporting the safe operation of the distribution network and refined load management. The partitioned modular design of this energy storage ring main unit not only facilitates the disassembly, assembly, and maintenance of the external circulation heat exchange components and battery modules, but also ensures overall structural stability, strong fault tolerance and isolation capabilities, and meets the requirements of energy conservation, environmental protection, and green low-carbon development. Example

[0021] Refer to the instruction manual appendix Figure 1 , Figure 2This embodiment is the first embodiment of the present invention, which provides an intelligent energy storage ring network box based on distributed control, including an outdoor sealed box 1. The interior of the box 1 is divided into two independent fire-resistant zones: a gas holder zone and an energy storage zone, by fireproof and heat-insulating partitions 2. The energy storage zone is further divided into a battery compartment, a power conversion compartment, and a control compartment by fireproof and heat-insulating partitions 2, so as to achieve physical isolation of high-voltage power distribution, energy storage battery, power conversion, and secondary control, and prevent the spread of faults across regions.

[0022] Multiple sets of inflatable ring network gas holders 3 are installed side by side along the length of the housing 1 inside the gas holder area. An external circulation heat exchange unit 4 is set inside the gas holder area. The external circulation heat exchange unit 4 includes an external circulation component that corresponds one-to-one with each set of gas holders 3. All external circulation components share a heat exchange box for circulating heat exchange. Each set of gas holders 3 can independently cut off the gas path through the corresponding external circulation component to isolate a single faulty gas holder 3.

[0023] Furthermore, such as Figure 3 , Figure 4 As shown, the heat exchange box is fixedly installed at the bottom of the box 1 in the gas holder area by a U-shaped frame 41. The U-shaped frame 41 is a channel steel structure, and the top is fixedly installed with a gas box 42 by bolts. One side of the gas box 42 is open, and the edge of the opening is detachably installed with a box cover 43 by bolts. After the box cover 43 is fastened to the gas box 42, a sealed gas processing chamber is formed inside. The inner side wall of the box cover 43 is embedded with a semiconductor cooling chip 44, which can realize bidirectional temperature control of the circulating gas in the processing chamber. That is, under high temperature conditions, it cools down and lowers the operating temperature of the gas chamber, while under low temperature conditions, it heats up in the opposite direction and raises the gas temperature, thereby ensuring that the gas chamber of the gas holder 3 can maintain a slightly positive pressure state under both high temperature and low temperature conditions. The semiconductor cooling chip 44 is an existing mature technology, and its temperature control principle will not be described in detail here.

[0024] Furthermore, such as Figure 5 , Figure 6 As shown, the gas processing chamber has two independent gas chambers 45, namely the inlet chamber and the return chamber, and a serpentine air passage 46 is provided between the two gas chambers 45. The inlet chamber is connected to the inlet end of the serpentine air passage 46 through the inlet pipe 48, and the return chamber is connected to the outlet end of the serpentine air passage 46 through the return pipe 49. A circulation pump (model VWZ-10 / 0.6) is installed on the inlet pipe 48 near the inlet chamber. Multiple heat-conducting rods 47 are fixedly arranged inside the serpentine air passage 46 along the airflow direction. The end of each heat-conducting rod 47 near the cover 43 is in close contact with the working end face of the semiconductor cooling chip 44, so as to evenly transfer the cold / heat generated by the semiconductor cooling chip 44 to the inside of the air passage. The serpentine structure of the air passage effectively extends the gas heat exchange path, and the multiple heat-conducting rods greatly increase the heat exchange area, significantly improving the gas temperature control efficiency.

[0025] Furthermore, such as Figure 4 As shown, each set of external circulation components corresponds to a set of gas holders 3, which are used to realize the gas circulation and on / off control between the gas chamber of the gas holder 3 and the heat exchange box.

[0026] Specifically, each set of external circulation components includes two L-shaped pipes 414. The two ends of the upper L-shaped pipe 414 are connected to the air inlet chamber of the gas box 42 and the air chamber of the gas holder 3, respectively. The two ends of the lower L-shaped pipe 414 are connected to the air return chamber of the gas box 42 and the air chamber of the gas holder 3, respectively, forming a closed gas circulation loop of "air chamber → air inlet L-shaped pipe 414 → air inlet chamber → heat exchange air passage → air return chamber → air return L-shaped pipe 414 → air chamber". Ball valves 413 are installed in series on the pipes of the two L-shaped pipes 414, which can simultaneously open and close the circulation air passage of the gas holder 3. Among them, the L-shaped pipe 414 that delivers the treated gas to the air chamber is also equipped with a one-way valve 415, which only allows the gas to flow into the air chamber in one direction, preventing the faulty gas inside the air chamber from flowing back and contaminating the shared heat exchange treatment chamber. Furthermore, on the outer wall of the air box 42, two horizontal seats 411 are fixed at positions corresponding to each set of external circulation components. A vertical rod 412 is rotatably mounted between the two horizontal seats 411 via a bearing. The upper and lower ends of the vertical rod 412 are fixedly connected to the valve cores of the corresponding ball valves 413. Rotation of the vertical rod 412 synchronously drives the two valve cores to rotate, achieving continuous adjustment of the air passage opening and closing. A disc 417 is also fixedly sleeved on the outside of the vertical rod 412. An electric push rod 418 (model HB-DJ801) is fixedly mounted on the top of the disc 417. The output end of rod 418 faces upward and is fixedly connected to the bottom of worm gear 416. Worm gear 416 is slidably sleeved on the outside of vertical rod 412 through spline bracket, so that it can slide along the axial direction of vertical rod 412 and rotate synchronously with vertical rod 412 in the circumferential direction. In addition, vertical seats 410 are fixed at both ends of the outer side of air box 42. Worm 419 is rotatably installed between the two vertical seats 410 through bearing. Worm 419 is driven to rotate by servo motor (model JSMA-PUC02D) fixed on the side of one of the vertical seats 410. Worm 419 meshes with worm gear 416.

[0027] Furthermore, such as Figure 7 As shown, each gas chamber of the gas holder 3 is provided with a vertical shaft 420. The vertical shaft 420 is vertically fixed on the bottom wall of the corresponding gas chamber. A cylindrical cavity is opened at the upper end of the vertical shaft 420. A gas pipe 421 communicating with the cylindrical cavity is provided on the side wall of the vertical shaft 420. An impeller disk 422 is rotatably installed at the top of the vertical shaft 420 through a bearing. Inner blades 423 and outer blades 424 are respectively arranged in a ring and evenly distributed on the inner and outer sides of the impeller disk 422. The outlet end of the L-shaped pipe 414 on the return gas side is directly opposite the gas receiving position of the outer blades 424 and the gas pipe 421. Among them, the outer blade 424 is designed as a conical diffuser structure with a small diameter at the inlet end and a large diameter at the outlet end, and the flow channel gradually expands along the airflow direction. This allows the airflow to naturally diffuse radially after it flows out, thereby expanding the coverage of the swirling flow. This drives the stagnant gas at the corners and far side walls of the air chamber to participate in the circulation, completely eliminating the flow dead zone of the traditional straight inlet. In addition, the blade can be further optimized by setting the blade as a smooth spatial curved surface without sharp corners. This prevents the problem of airflow rushing and turbulent stripping that occurs with straight blades when the airflow gradually turns along the curved surface of the blade. The inner blade 423 is designed to be fixed at an angle of 15° to 30° to the inner radial plane of the impeller disk 422, forming a fixed swirl angle. When the impeller disk 422 rotates, the inner blade 423 continuously cuts and deflects the airflow, forcibly converting the disordered axial and radial airflow into an upward spiral axial swirling flow, thus constructing an overall swirling flow field from bottom to top. By combining the axial bottom-up swirling flow field formed inside the impeller disk 422 with the radial diffusion swirling flow field formed outside the impeller disk 422, the gas inside the gas chamber of the gas holder 3 can be fully disturbed, realizing full-area air exchange inside the gas chamber and ensuring uniform temperature field throughout the gas chamber.

[0028] It should be noted that the insulating protective gas used in the gas chamber of gas holder 3 is g. 3 Compared to traditional SF6, the mixed gas has better environmental protection properties, wide temperature stability, and safer operation and maintenance. Each gas tank 3 is equipped with a temperature and pressure composite sensor (model ZNPWZ-MD) to monitor the temperature and pressure changes inside the corresponding gas tank in real time. The control terminal starts the circulation and gas exchange process based on the data received. At the same time, an appropriate amount of protective gas is pre-filled inside the gas box 42 for the gas chamber. When the energy storage ring network box is in normal operation, the electric push rod 418 is in the extended state, driving the worm gear 416 to maintain the height position of meshing with the worm 419. Once the temperature and pressure inside the corresponding gas tank 3 exceeds the set threshold, the control terminal will control the external servo motor to drive the worm 419 to rotate. Through the transmission between the worm gear 416 and the worm 419, the vertical rod 412 is driven to rotate synchronously to adjust the opening of the ball valve 413. Then, the circulation pump is started to start the external circulation heat exchange. If an internal fault occurs in one of the gas holders 3 and isolation is required, the control terminal will control the electric push rod 418 of the corresponding circuit to retract, so as to drive the worm gear 416 to slide down along the vertical rod 412, disengage from the worm 419, and keep the ball valve 413 of that group closed, completely cutting off the circulating gas path. The heat exchange cycle of the other gas holders 3 will not be affected, realizing independent isolation of a single fault and preventing the spread of the fault. Furthermore, during the external circulation heat exchange process, the circulation pump extracts the gas from the inlet chamber, and after heat exchange through the serpentine air passage 46, it is sent into the return air chamber and then ejected through the L-shaped pipe 414 at the lower end. Part of the ejected airflow impacts the outer blade 424 near the vertical axis 420, driving the impeller disk 422 to rotate around the vertical axis 420. At the same time, another part of the airflow enters the air pipe 421, passes through the cylindrical cavity, and is ejected axially, driving the inner blade 423 to rotate synchronously. In this way, the impeller disk 422 can be stably rotated through the dual drive of the inner and outer double-layer blades, and the protective gas (i.e., insulating gas) inside the air chamber can be agitated to form an orderly circulation, so that the temperature inside the air chamber is evenly distributed and local overheating areas are eliminated. In addition, this swirling structure does not require an electric fan inside the air chamber, avoiding the risk of sealing leakage caused by the shaft penetrating the air chamber wall, effectively improving the airtightness and insulation reliability of the gas holder, and extending the maintenance-free period. Example

[0029] Refer to the instruction manual appendix Figure 1 and Figure 8 This embodiment is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: an energy storage unit 5 is installed inside the battery compartment of the energy storage area for multi-layer stacking and fixing of battery modules. The energy storage unit 5 consists of four feet 51, multiple vertically stacked battery module units 52, and a pressure frame 53. The four feet 51 correspond to the four corners of the battery module unit 52 respectively and are used to support the bottom battery module unit 52. The multiple battery module units 52 are stacked vertically, and the pressure frame 53 is pressed onto the top of the top battery module unit 52 to achieve overall vertical compression and lateral limitation.

[0030] Furthermore, such as Figure 9 , Figure 10 As shown, each foot 51 includes a base 511 fixed to the bottom of the battery compartment. A sliding groove extending along the module disassembly and assembly direction is provided in the middle of the base 511, and a through hole communicating with the sliding groove is provided on the top of the base 511. A slide 512 is slidably connected inside the sliding groove. A cavity composed of an inclined groove and a cylindrical groove is provided on the top of the slide 512, and the inclined groove and the cylindrical groove are connected. A spring is fixedly connected between the inner end of the slide 512 facing the disassembly and assembly direction and the inner wall of the sliding groove, so that the slide 512 has elastic buffering capacity along the disassembly and assembly direction. When the spring is in the natural state, the high end of the inclined groove at the top of the slide 512 is directly opposite the through hole. The top of the slide block 512 has a recessed cavity for inserting and positioning the bottommost battery module unit 52. The top of the slide block 512 also has a positioning element for locking the insertion state of the bottommost battery module unit 52. The positioning element includes a protrusion 513, a telescopic fastener 514, a cylinder 515, an insertion rod 516, a limiting groove 517, and a lever 518. The cylinder 515 is fixed to the side wall of the protrusion 513, the limiting groove 517 is formed on the side wall of the cylinder 515, and the insertion rod 516 is slidably installed inside the cylinder 515, inserting into the... A buffer spring is fixedly connected between one end of the cylinder 515 and the end face of the inner cavity of the cylinder 515. The lever 518 is fixed to the outside of one end of the insert rod 516 inserted into the cylinder 515 and passes through the inside of the limiting groove 517. The top of the lever 518 has a locking groove. The telescopic fastener consists of a fixed seat and a U-shaped locking rod that is vertically inserted into the top of the fixed seat. The two ends of the U-shaped locking rod are fixedly connected to the inner wall of the corresponding insertion hole on the fixed seat with a return spring, so that the lever 518 can slide along the limiting groove 517 to drive the insert rod 516 to extend or retract.

[0031] During the process of fixing the bottommost battery module unit 52 onto the foot 51, since the initial state is that the high end of the inclined groove at the top of the slide 512 is directly opposite the through hole, and in this state, the positioning member in its natural state does not obstruct the through hole, the inclined groove at the top of the slide 512 will be squeezed after the corresponding battery module unit 52 is inserted into the through hole, causing the spring to be stretched. At the same time, the positioning member will move closer to the battery module unit 52. As the positioning member moves closer to the battery module unit 52, the insertion rod 516 will first abut against the battery module unit 52. On the side wall of the plug-in end of the battery module unit 52, as the battery module unit 52 is inserted, the plug rod 516 will retract into the cylinder 515 to compress the corresponding buffer spring. When the plug-in end of the battery module unit 52 is fully inserted into the cylindrical groove, the plug rod 516 passively pressed into the cylinder 515 is aligned with the plug hole on the plug-in end of the battery module unit 52. When the passive pressing state is released, the plug rod 516 will be inserted into the plug hole under the restoring force of the corresponding buffer spring, thus completing the installation and fixation of the bottom battery module unit 52. If it is necessary to disassemble the bottommost battery module unit 52, simply move the lever 518 along the limiting groove 517 toward the corresponding protrusion 513 to compress the buffer spring. At the same time, pull the U-shaped latch on the telescopic fastener 514 upward to stretch the return spring. After the lever 518 moves to the position groove at its top and aligns with the U-shaped latch, the insertion rod 516 completely disengages from the insertion hole on the corresponding battery module unit 52 insertion end, allowing the U-shaped latch to be locked inside the position groove under the restoring force of the return spring, thus fixing the lever 518.

[0032] Furthermore, such as Figure 11As shown, each battery module unit 52 includes four vertically arranged square pillars 521. Except for the bottommost battery module unit 52, each square pillar 521 has a rectangular insert fixed at its lower end, and a rectangular slot adapted to the rectangular insert is opened at the top of each square pillar 521. A side plate 523 is fixedly connected between two square pillars 521 on the same side. The two side plates 523 are arranged opposite each other to form a module mounting frame. The battery module is slidably mounted on the two side plates 523 by sliding pillars fixed at its two ends. Between the side panels 523, a pull-out assembly and disassembly are achieved. The bottom battery module unit 52 is located at the bottom layer, and each square post 521 of the bottom battery module unit 52 is fixed with a column foot 522 (i.e. the aforementioned plug-in end). At the same time, a rectangular slot adapted to the rectangular plug is also opened at the top of each square post 521 of the bottom battery module unit 52. The column foot 522 is inserted into the recessed cavity of the slide 512 to complete the positioning and assembly of the bottom battery module unit 52 and the foot 51. Both side plates 523 have horizontally extending straight channels 524 on their opposite side walls, serving as guide rails for pulling out the battery module. Sinking channels 525 are provided at both the front and rear ends of the bottom of the straight channels 524. After the module is pushed into position, it falls into the sinking channel, achieving automatic vertical positioning and preventing vertical movement during operation. A triangular prism 528 is fixed inside the sinking channel 525 at the front end of the pushing direction, and a pusher 52 is movably installed inside the sinking channel 525 at the front end of the pushing direction. 6 and push post 527, the top of triangular post 528 near the slot is hinged to a swing plate 529. When no external force is applied, the swing plate 529 can be pushed to a state perpendicular to the straight channel 524 by the torsion spring installed at its hinge end. The push seat 526 is composed of a horizontally sliding right-angled trapezoidal block and a side stop fixed to the top of the right-angled trapezoidal block. The upper end of the push post 527 is set as an inclined structure. Both the push seat 526 and the push post 527 are equipped with springs, which are elastic reset structures.

[0033] When installing the battery module, simply push the battery module inward along the straight channel 524. When it reaches the rear end, the sliding pillars on both sides of the battery module will be blocked by the swing plate 529 and cannot be pushed further. The sliding pillars on both sides of the battery module will fall into the corresponding sinking channel 525 under their own weight. Furthermore, as the sliding pillar at the front end of the battery module falls into the corresponding sinking channel 525, it will squeeze the inclined surface at the upper end of the push post 527, causing the push post 527 to retract into the groove where the push post 527 is installed. After the sliding pillar falls to the bottom of the corresponding sinking channel 525, the push post 527 will extend under the action of the connecting spring and push the sliding pillar forward, thereby limiting the insertion of the battery module. Conversely, when disassembling the battery module, simply push the battery module in the direction it is inserted. Use the sliding post at the front end of the battery module's pushing direction to squeeze the push post 527. In conjunction with the sinking channel 525 at the rear end of the pushing direction, guide the corresponding sliding post to move obliquely upward. This guides the sliding post at the front end of the battery module's pushing direction to squeeze the inclined surface of the right-angled trapezoidal block on the push seat 526, causing the push seat 526 to move backward to release the blockage of the corresponding sliding post entering the straight channel 524. After the sliding post is fully inside the straight channel 524, the push seat 526 will reset and seal under the action of the corresponding connecting spring, preventing the sliding post from falling. Then, the battery module can be pulled out. The entire battery module disassembly and assembly requires no tools, making maintenance convenient and efficient.

[0034] Furthermore, such as Figure 12 As shown, the pressure frame 53 includes a rectangular frame 531. A set of clamping parts 533 are installed on each of the left and right sides of the rectangular frame 531. The front and rear ends of the top of the rectangular frame 531 are hinged with swing arms 532. The swing arms 532 can be flipped down to engage the clamping parts 533 and lock the clamping state. The rectangular closed-loop frame structure has uniform vertical load-bearing force and no outward expansion deformation under long-term heavy load. Its stacking stability is better than that of the conical frame. The clamping component 533 includes a stud 5331 fixed to the middle of the outer side of the rectangular frame 531. A sleeve 5332 is threaded onto the outside of the stud 5331. A clamping plate 5334 is fixedly connected to the opposite ends of the two sleeves 5332. Multiple locking pins 5333 are fixed to the outside of the sleeves 5332 in a ring-shaped even distribution. Each locking pin 5333 also has a locking groove at its top.

[0035] After stacking multiple battery module units 52, the pressure frame is placed on top of the uppermost module. Then, the sleeve 5332 is rotated, and the two clamping discs 5334 are driven to move in opposite directions through the threaded transmission to press against the side wall of the corresponding area inside the housing 1. This achieves vertical positioning of the multiple stacked battery module units 52, which can accommodate modules of different widths and dimensional tolerances. After adjustment, the swing arm 532 is flipped so that the end of the swing arm is inserted into the locking groove on the corresponding locking post 5333, locking the rotation state of the sleeve 5332 and preventing the sleeve 5332 from loosening under vibration conditions, thus ensuring the long-term reliability of the pressing and limiting.

[0036] The working principle of the aforementioned intelligent energy storage ring main unit is as follows: When the energy storage ring main unit is operating under normal conditions, the electric push rod 418 is in the extended state, driving the worm gear 416 to maintain the height position of meshing with the worm 419, and keeping the ball valve 413 in the closed state. If heat exchange treatment is required for the insulating gas inside the gas chamber of the gas holder 3, the control terminal will control the external servo motor to drive the worm 419 to rotate. Through the transmission between the worm gear 416 and the worm 419, the vertical rod 412 will rotate synchronously, opening the ball valve 413, and then starting the circulation pump. At the same time, the semiconductor cooling chip 44 will start working, through the guide... The heat pipe 47 is used to fully cool the insulating gas in the serpentine gas passage 46. The cooled gas is sent into the gas chamber through the L-shaped return pipe 414, impacting the impeller disk 422 to rotate and agitate the gas in the gas chamber for uniform heat exchange. The heated gas flows back to the heat exchange treatment chamber through the inlet L-shaped pipe 414 for further cooling, realizing closed-loop temperature control of the gas holder 3. If one of the gas holders 3 malfunctions, the corresponding electric push rod 418 can be activated to retract, disengaging the worm gear 416 from the worm 419 and keeping the group ball valve closed, cutting off the gas path to achieve fault isolation. The heat exchange cycle of the remaining gas holders 3 continues to operate normally, realizing distributed independent control.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A smart energy storage ring network box based on distributed control, comprising a box body (1) and multiple gas holders (3) installed inside the box body (1), characterized in that, The interior of the enclosure (1) is divided into a gas holder area and an energy storage area by fireproof and heat-insulating partition (2). The energy storage area is further divided into a battery compartment, a power conversion compartment and a control compartment by fireproof and heat-insulating partition (2). External circulation heat exchange unit (4) is located inside the gas holder area where multiple gas holders (3) are installed. The external circulation heat exchange unit (4) includes an external circulation component corresponding to each gas holder (3). Multiple external circulation components share a heat exchange box for circulating heat exchange, and each gas holder (3) is isolated from failure through the corresponding external circulation component. The energy storage unit (5) is installed inside the battery compartment of the energy storage area. The energy storage unit (5) consists of four feet (51), multiple vertically distributed battery module units (52), and a pressure frame (53) for limiting the multiple stacked battery module units (52).

2. The intelligent energy storage ring network box based on distributed control according to claim 1, characterized in that, The external circulation heat exchange unit (4) includes a U-shaped frame (41) fixed inside the box (1), a gas box (42) is fixedly installed on the top of the U-shaped frame (41), a box cover (43) is detachably installed on one side of the gas box (42), a processing chamber is formed between the box cover (43) and the gas box (42) in the snap-fit ​​state, and a semiconductor cooling chip (44) for regulating the temperature of the gas entering the processing chamber is installed on the inside of the box cover (43).

3. The intelligent energy storage ring network box based on distributed control according to claim 2, characterized in that, The processing cavity formed between the cover (43) and the air box (42) includes two air chambers (45) and a serpentine air passage (46) between the two air chambers. An air inlet pipe (48) and an air return pipe (49) are respectively connected between the corresponding ends of the two air chambers (45) and the serpentine air passage (46). Multiple heat-conducting rods (47) are fixedly arranged inside the serpentine air passage (46), and the end of each heat-conducting rod (47) near the cover (43) is in contact with the corresponding side of the semiconductor cooling chip (44).

4. The intelligent energy storage ring network box based on distributed control according to claim 3, characterized in that, The external circulation component includes two L-shaped pipes (414). One end of the two L-shaped pipes (414) connected to the gas box (42) is connected to two gas chambers (45) respectively, and the other end of the two L-shaped pipes (414) is connected to the gas chamber of the corresponding gas cabinet (3). A ball valve (413) is installed on each of the two L-shaped pipes (414). A one-way valve (415) is also installed on the L-shaped pipe (414) used to transport the gas after heat treatment.

5. The intelligent energy storage ring network box based on distributed control according to claim 4, characterized in that, The external circulation component also includes a horizontal seat (411) fixed on the outside of the air box (42) and corresponding to each group of L-shaped pipes (414). A vertical rod (412) is rotatably installed between the two horizontal seats (411) through a bearing. The two ends of the vertical rod (412) are respectively fixedly connected to the valve core of the corresponding ball valve (413). A disc (417) is fixedly sleeved on the outside of the vertical rod (412), and an electric push rod (418) is fixedly installed on the top of the disc (417). The output end of the electric push rod (418) is fixedly connected to a worm gear (416). The worm gear (416) is slidably sleeved on the outside of the corresponding vertical rod (412) through a card seat. Both ends of the air box (42) are fixedly provided with vertical seats (410). A worm (419) that meshes with the worm gear (416) is rotatably installed between the two vertical seats (410) through a bearing.

6. The intelligent energy storage ring network box based on distributed control according to claim 4, characterized in that, The external circulation heat exchange unit (4) also includes a vertical shaft (420) fixed inside the corresponding air chamber. A cylindrical cavity is opened at the upper end of the vertical shaft (420). An air pipe (421) connected to the cylindrical cavity is also provided on the outer side of the vertical shaft (420). An impeller disk (422) is also rotatably installed at the upper end of the vertical shaft (420) through a bearing. Inner blades (423) and outer blades (424) are respectively provided on the inner and outer sides of the impeller disk (422) in a ring-shaped and uniformly distributed manner. The air outlet end of the L-shaped pipe (414) used for air return is directly opposite the air receiving position of the outer blades (424) and the air pipe (421).

7. The intelligent energy storage ring network box based on distributed control according to claim 1, characterized in that, The foot (51) includes a base (511) fixed inside the housing (1). A sliding groove is provided in the middle of the base (511). A slide (512) is slidably connected inside the sliding groove. A recessed cavity is provided at the top of the slide (512). A spring is fixedly connected between one end of the slide (512) and the inner wall of the sliding groove. The top of the slide (512) is also provided with a positioning component for fixing the corresponding battery module unit (52).

8. The intelligent energy storage ring network box based on distributed control according to claim 7, characterized in that, The battery module unit (52) includes four square pillars (521), and a side plate (523) is fixedly connected between two square pillars (521) on the same side. The bottom end of each square pillar (521) of the battery module unit (52) at the bottom end is fixedly connected to a column foot (522) inserted into the cavity. The battery module is slidably installed between two side plates (523) that are arranged opposite to each other. The two side plates (523) are provided with straight channels (524) on opposite sides. Both ends of the bottom of the two straight channels (524) are provided with sinking channels (525). A triangular column (528) is fixedly installed inside the sinking channel (525) at the front end of the propulsion direction. A push seat (526) and a push column (527) are also movably installed inside the sinking channel (525) at the front end of the propulsion direction. A swing plate (529) is installed at one end of the top of the triangular column (528). The push seat (526), ​​the push column (527) and the swing plate (529) are all set as elastic structures.

9. The intelligent energy storage ring network box based on distributed control according to claim 1, characterized in that, The pressure frame (53) includes a rectangular frame (531) and a clamping member (533) installed on both sides of the rectangular frame (531). Both ends of the top of the rectangular frame (531) are equipped with swing arms (532) for limiting the clamping state of the corresponding clamping member (533).

10. The intelligent energy storage ring network box based on distributed control according to claim 9, characterized in that, The clamping member (533) includes a stud (5331) fixed in the middle of the outer side of the rectangular frame (531), a sleeve (5332) is threaded onto the outside of the stud (5331), a clamping plate (5334) is fixedly connected to one end of the sleeve (5332), and multiple locking pins (5333) are fixedly provided on the outside of the sleeve (5332) in a ring-shaped and uniformly distributed manner.

Images