Intelligent string type energy storage system

Abstract

The invention provides an intelligent string type energy storage system, belongs to the technical field of energy storage equipment, and solves the problem of low safety of a battery module in the prior art. The intelligent string type energy storage system comprises a battery module, an energy optimizer module, a battery cluster controller module, a distributed air conditioner module, an electric power conversion system module, an intelligent controller module and a fire extinguishing system module, the battery module comprises a shell, an installation groove is formed in the shell, a heat dissipation plate is fixedly installed in the installation groove, and the heat dissipation plate is fixedly installed in the shell. A heat conduction plate is fixedly mounted on the left side of the heat dissipation plate, limiting frames are fixedly mounted on the two sides of the heat conduction plate, a plurality of battery packs are mounted in the two limiting frames, a heat dissipation mechanism is arranged in the heat dissipation plate, and elastic mechanisms are arranged in the limiting frames. The method has the advantage that the safety of the battery module in the energy storage system can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage equipment, and relates to a string energy storage device, in particular to an intelligent string energy storage system. Background Art

[0002] The intelligent string energy storage system is an innovative energy storage technology solution that integrates digital information technology with photovoltaic and energy storage technologies. Based on the distributed energy storage system architecture, the system adopts a series of innovative technologies, such as battery module-level energy optimization, battery cluster energy control, digital intelligent management, and fully modular design, to achieve higher discharge efficiency, better return on investment, simpler operation and maintenance, and higher safety and reliability throughout the life cycle of the energy storage system.

[0003] The intelligent string energy storage system connects multiple energy storage devices in series or in parallel to achieve higher energy storage capacity, higher power output and better system performance. This system can flexibly add or remove energy storage devices according to demand to adapt to different power and capacity requirements. The intelligent string energy storage system also adopts battery module-level refined management. Through components such as optimizers and controllers, it can solve the problems of battery module series mismatch, parallel mismatch between battery clusters, battery temperature rise differences, etc. to the greatest extent, thereby improving the charging and discharging capacity.

[0004] However, the safety issue of batteries in energy storage systems still exists. When the battery is abused, such as overcharging, over-discharging, high temperature, etc., it may cause a strong chemical reaction between the electrode and the electrolyte, generating a lot of heat. If the heat cannot be dissipated in time, it may cause thermal runaway inside the battery, and eventually cause the battery to burn or explode. Some types of batteries, such as lead-acid batteries, contain liquid electrolytes. Battery damage or improper handling may cause electrolyte leakage, which may not only cause battery short circuits and explosions, but the electrolyte itself may be corrosive. If it is not handled properly, it will cause damage to objects and people it touches. Summary of the invention

[0005] The purpose of the present invention is to address the above problems in the existing technology and to propose an intelligent string energy storage system. The technical problem to be solved by the intelligent string energy storage system is: how to improve the safety of battery modules in the energy storage system.

[0006] The purpose of the present invention can be achieved by the following technical solutions: An intelligent string energy storage system, comprising a battery module, an energy optimizer module, a battery cluster controller module, a distributed air conditioning module, a power conversion system module, an intelligent controller module and a fire protection system module; The battery module is composed of a plurality of single cells and is responsible for storing electrical energy; The energy optimizer module is used to implement energy management and optimization at the battery module level to ensure that each module can work in the best state; The battery cluster controller module is responsible for energy balance between battery clusters, preventing parallel mismatch between clusters and improving the overall performance of the system; The distributed air conditioning module is used to dissipate heat from the battery module, ensuring that the battery operates within a suitable temperature range and extending the battery life; The power conversion system module is responsible for converting the direct current in the battery into alternating current, or converting alternating current into direct current, for use by the system or charging; The intelligent controller module can monitor the operating status of the entire system and make adjustments as needed; The fire fighting system module includes a fire extinguishing gas sprinkler and a water immersion fire fighting equipment, which are used to take timely measures to protect the safety of the system when a fire occurs; The battery module comprises a shell, a mounting groove is provided inside the shell, a heat sink is fixedly installed inside the mounting groove, a heat conducting plate is fixedly installed on the left side of the heat sink, limit frames are fixedly installed on the upper and lower sides of the heat conducting plate, multiple battery packs are installed inside the two limit frames, a heat dissipation mechanism is provided inside the heat sink, and an elastic mechanism is provided inside the limit frame; The fire protection system module includes two storage frames, which are fixedly mounted on the upper and lower sides of the housing respectively, and a storage mechanism is arranged inside the storage frame, and an alarm light is fixedly mounted outside the upper storage frame, and a cleaning mechanism is arranged outside the alarm light; The fire extinguishing gas spray device comprises a rectangular groove opened inside the upper end receiving frame, and a fire extinguisher is installed inside the rectangular groove.

[0007] The working principle of the present invention is as follows: each battery pack in the battery module is connected to the energy optimizer module, the energy optimizer module is responsible for monitoring and adjusting the charge and discharge state of the battery module to achieve the best operation of the battery module, the battery cluster controller module is connected to the battery module through a data line to achieve balanced distribution of energy between clusters, the battery cluster controller modules are equipped with distributed air conditioners, and the battery cluster controller modules are cooled by cooling pipes or electric fans to ensure stable battery temperature, the power conversion system module is responsible for converting the electric energy in the battery cluster into the electric energy form required by the system, the intelligent controller module is connected to each component through a data line, collects and processes data in real time, and controls and adjusts according to the system status, the fire protection system is connected to the battery module and the power conversion system module through sensors and controllers, and once an abnormal situation is detected, the fire protection system will start immediately and take corresponding measures; The heat generated by the battery pack is dissipated in time through the heat dissipation mechanism, the battery pack in an abnormal state is pushed out of the rectangular opening through the elastic mechanism, and the outer wall of the alarm light is cleaned by the cleaning mechanism to avoid affecting the alarm effect due to dust coverage.

[0008] The heat dissipation mechanism includes a copper tube fixedly installed inside the heat dissipation plate, one side of the copper tube is fixedly connected to the heat conducting plate, the other side of the copper tube is fixedly installed with a rectangular tube, the outer wall of the rectangular tube is fixedly installed with a heat conducting sheet, and the outer wall of the heat conducting sheet is fixedly installed with two fans.

[0009] With the above structure, the heat generated by the battery pack is transferred to the copper tube through the heat conducting plate, and the copper tube then transfers the heat to the rectangular tube and the heat conducting sheet. The thickness of the rectangular tube is smaller than the diameter of the copper tube. The heat conducting sheet is cooled by two fans, so that the heat generated by the battery pack can be dissipated in time.

[0010] The side wall of the heat conducting plate is provided with a plurality of ventilation slots at equal intervals.

[0011] With the above structure, the multiple ventilation slots can increase the gas flow rate inside the heat conducting plate, thereby accelerating the heat exchange between the heat conducting plate and the external air, and further improving the heat dissipation rate.

[0012] One-way valves are fixedly installed at both upper and lower ends of the copper tube, and the two one-way valves have opposite flow directions. Evaporative liquid is also filled inside the copper tube, and the evaporative liquid is n-pentane.

[0013] With the above structure, n-pentane is an organic compound that can be used to make artificial ice, anesthetics, synthesize amyl alcohol, isopentane, etc. Its boiling point is 36°C, and the normal operating temperature of the battery pack is around 35°C. When it is working, the heat inside it will be quickly transferred to the side of the copper tube close to the heat conducting plate through the heat conducting plate. After the evaporating liquid at the bottom of the copper tube evaporates and absorbs heat to become gas, the internal pressure of the copper tube close to the heat conducting plate increases. The one-way valve at the upper end only allows the gaseous evaporating liquid to enter the side close to the heat conducting plate, and the one-way valve at the lower end only allows the liquid The evaporative liquid enters the side close to the heat conducting plate, and then the gaseous evaporative liquid enters the side close to the heat conducting plate through the one-way valve at the upper end. The gas passes through the rectangular tube. Due to the low thickness of the rectangular tube, the gas inside the copper tube will flow toward the edge of the rectangular tube. Then the heat is transferred to the heat conducting plate, and the gaseous evaporative liquid will cool down and liquefy, and flow downward, and then re-enter the side close to the heat conducting plate through the one-way valve at the lower end to be heated, thus completing a cycle, and then continuing the heat transfer, thereby greatly accelerating the thermal conductivity efficiency of the copper tube.

[0014] A flow guide cavity is also provided inside the rectangular tube, and a plurality of flow divider plates are fixedly installed inside the flow guide cavity.

[0015] With the above structure, the diverter plate is composed of two inclined plates, which can change the flow direction of the fluid. After the gaseous evaporating liquid drives the one-way valve through the upper end and enters the interior of the rectangular tube, it will escape under the action of multiple diverter plates, thereby increasing the contact area with the rectangular tube, thereby accelerating the heat transfer with the heat conductive sheet.

[0016] The elastic mechanism includes a plurality of storage grooves opened on the upper and lower sides of the heat conducting plate, a bottom plate is fixedly installed at the contact surface between the battery pack and the heat conducting plate, a memory metal wire is installed inside each of the storage grooves, one end of the memory metal wire is fixedly connected to the bottom plate, and a plurality of rectangular openings cooperating with the battery pack are opened on the upper and lower sides of the shell.

[0017] With the above structure, if there is an abnormality in the battery pack inside the limit frame, the temperature inside the battery pack will rise rapidly, and the memory wire inside the storage slot will be quickly heated after sensing the heat of the battery pack. The memory wire is made of TiNi-02 nickel-titanium alloy, and its phase change temperature is around 60°C. It is a special alloy that can automatically restore its own plastic deformation to its original shape at a certain temperature. Its expansion rate is above 20%, and its damping characteristics are 10 times higher than that of ordinary springs. The memory wire is processed into a twisted spring shape and then compressed and loaded into the storage slot. When the temperature reaches the phase change temperature of the memory wire, the memory wire can be quickly deformed and push the battery pack in an abnormal state out of the rectangular opening.

[0018] The storage mechanism comprises a plurality of sliding cavities opened inside the storage frame, the positions of the sliding cavities are consistent with the rectangular openings, and a pneumatic mechanism is also arranged inside the sliding cavities.

[0019] With the above structure, after the battery pack is pushed out of the rectangular opening, it will enter the sliding cavity inside the storage frame, and the sliding cavity will confine it in a narrow cavity, thereby preventing abnormal battery packs from affecting other normal battery packs.

[0020] The pneumatic mechanism includes a top plate slidably mounted inside the sliding cavity, a sealing strip is fixedly mounted at the edge of the top plate, two magnets are also fixedly mounted on the bottom of the sliding cavity, a permanent magnet is fixedly mounted inside the top plate, the two magnets are attracted to each other, a circular cavity is opened inside the storage frame on one side, an air inlet is arranged inside the circular cavity, an air outlet is opened inside each of the sliding cavities, the air outlet is connected to the air inlet, a nozzle is opened on the inner wall of each of the sliding cavities, a plurality of nozzles are connected to the lower end of the fire extinguisher, and a temperature sensor is also arranged inside the nozzle.

[0021] With the above structure, after the battery pack enters the interior of the sliding cavity, it will push the top plate to move, and then the top plate will push the gas inside the sliding cavity to the air inlet through the air outlet. The two magnets inside the sliding cavity can adsorb the top plate through permanent magnets, thereby ensuring the stability of the top plate under normal conditions. At the same time, the temperature sensor inside the nozzle will activate the fire extinguisher after detecting abnormal temperature rise, thereby extinguishing the fire and cooling the interior of the sliding cavity.

[0022] The cleaning mechanism includes a circular groove opened on the outside of the storage frame, the alarm light is fixedly installed inside the circular groove, a rotating shaft is rotatably installed between the circular groove and the circular cavity, a fan blade is fixedly installed on the end of the rotating shaft inside the circular cavity, the inner wall of the circular cavity is also provided with an exhaust port connected to the outside of the storage frame, a gear is fixedly installed on the end of the rotating shaft inside the circular groove, a fixing plate is fixedly installed on the outside of the storage frame, an arc plate is rotatably installed on the upper end of the fixing plate, a brush strip is fixedly installed on the inner wall of the arc plate, a gear ring is fixedly installed on the bottom of the arc plate, and the gear ring is meshed with the gear.

[0023] With the above structure, after the gas inside the sliding cavity is pushed into the circular cavity, it will blow the shaft and the fan blades to rotate, and then the shaft will drive the gear ring and the arc plate to rotate through the gear, and then the outer wall of the alarm light will be cleaned through the brush strip to avoid affecting the alarm effect due to dust coverage.

[0024] Compared with the prior art, the present invention has the following advantages: 1. The heat generated by the battery pack is transferred to the copper tube through the heat conducting plate, and the copper tube then transfers the heat to the rectangular tube and the heat conducting sheet. The thickness of the rectangular tube is smaller than the diameter of the copper tube. The heat conducting sheet is cooled by two fans, so that the heat generated by the battery pack can be dissipated in time. Multiple ventilation slots can increase the gas flow rate inside the heat conducting sheet, thereby accelerating the heat exchange between the heat conducting sheet and the external gas, thereby increasing the heat dissipation rate.

[0025] 2. When the battery pack is working, the heat inside it will be quickly transferred to the side of the copper tube close to the heat conducting plate through the heat conducting plate. After the evaporative liquid at the bottom of the copper tube evaporates and absorbs heat to become gas, the internal pressure of the copper tube close to the heat conducting plate increases. The one-way valve at the upper end only allows the gaseous evaporative liquid to enter the side close to the heat conducting plate, and the one-way valve at the lower end only allows the liquid evaporative liquid to enter the side close to the heat conducting plate. Then, after the gaseous evaporative liquid enters the side close to the heat conducting plate through the upper one-way valve, the gas passes through the rectangular tube. Due to the low thickness of the rectangular tube, the gas inside the copper tube will flow toward the rectangular tube. The gaseous evaporative liquid will cool down and liquefy, and then flow downward, and re-enter the side close to the heat conducting plate through the one-way valve at the lower end to be heated, thus completing a cycle, and then continuing the heat transfer, thereby greatly accelerating the thermal conductivity of the copper tube. The diverter plate is composed of two inclined plates, which can change the flow direction of the fluid. After the gaseous evaporative liquid drives the one-way valve through the upper end to enter the interior of the rectangular tube, it will dissipate under the action of multiple diverter plates, thereby increasing the contact area with the rectangular tube, thereby accelerating the heat transfer with the heat conducting plate.

[0026] 3. If there is an abnormality in the battery pack inside the limit frame, the temperature inside the battery pack will rise rapidly. The memory wire inside the storage slot will be heated quickly after sensing the heat of the battery pack. The memory wire is made of TiNi-02 nickel-titanium alloy, and its phase change temperature is around 60°C. It is a special alloy that can automatically restore its own plastic deformation to its original shape at a certain temperature. Its expansion rate is above 20%, and its damping characteristics are 10 times higher than ordinary springs. The memory wire is processed into a twisted spring shape and then compressed and loaded into the storage slot. When the temperature reaches the phase change temperature of the memory wire, the memory wire can be deformed quickly and push the battery pack in an abnormal state out of the rectangular opening. After the battery pack is pushed out of the rectangular opening, it will enter the sliding cavity inside the storage frame. The sliding cavity confines it to a narrow cavity, thereby preventing the abnormal battery pack from affecting other normal battery packs.

[0027] 4. After the battery pack enters the interior of the sliding cavity, it will push the top plate to move, and then the top plate will push the gas inside the sliding cavity to the air inlet through the air outlet. The two magnets inside the sliding cavity can adsorb the top plate through permanent magnets, thereby ensuring the stability of the top plate under normal conditions. At the same time, the temperature sensor inside the nozzle will start the fire extinguisher after detecting abnormal temperature rise, and then extinguish the fire and cool down the interior of the sliding cavity. After the gas inside the sliding cavity is pushed into the circular cavity, it will blow the shaft and the fan blades to rotate, and then the shaft will drive the gear ring and the arc plate to rotate through the gear, and then the outer wall of the alarm light will be cleaned through the brush strip to avoid affecting the alarm effect due to dust coverage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a system block diagram of the present invention.

[0029] Figure 2 It is an internal top view of the structure of the present invention.

[0030] Figure 3 It is the internal structure diagram of the limit frame of the present invention.

[0031] Figure 4 It is a schematic diagram of the external structure of the present invention.

[0032] Figure 5 It is a structural schematic diagram of the heat dissipation plate of the present invention.

[0033] Figure 6 It is the internal structure diagram of the rectangular tube of the present invention.

[0034] Figure 7 yes Figure 3 A magnified view of the structure at A.

[0035] Figure 8 yes Figure 2 Enlarged view of the structure at B.

[0036] Fig. 9 yes Figure 2 Enlarged view of the structure at location C.

[0037] Fig.10 It is a top view of the housing of the present invention.

[0038] Fig.11 It is a schematic diagram of the memory metal wire of the present invention.

[0039] In the figure, 1, shell; 2, storage frame; 3, limit frame; 4, battery pack; 5, heat conduction plate; 6, heat sink; 7, copper tube; 8, one-way valve; 9, rectangular tube; 10, heat conduction sheet; 11, ventilation slot; 12, device slot; 13, guide cavity; 14, diverter plate; 15, evaporative liquid; 16, fan; 17, bottom plate; 18, storage slot; 19, memory wire; 20, rectangular opening; 21, sliding cavity; 22, top plate; 23, magnet; 24, circular cavity; 25, circular groove; 26, warning light; 27, fixing plate; 28, arc rod; 29, gear ring; 30, rotating shaft; 31, gear; 32, air inlet; 33, exhaust port; 34, rectangular groove; 35, fire extinguisher; 36, nozzle. DETAILED DESCRIPTION

[0040] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0041] like Figure 1-Figure 11As shown, the intelligent string energy storage system includes a battery module, an energy optimizer module, a battery cluster controller module, a distributed air conditioning module, a power conversion system module, an intelligent controller module and a fire protection system module; The battery module consists of multiple single cells and is responsible for storing electrical energy; The energy optimizer module is used to implement energy management and optimization at the battery module level to ensure that each module can work at its best; The battery cluster controller module is responsible for energy balance between battery clusters, preventing mismatch between clusters in parallel and improving the overall performance of the system; The distributed air conditioning module is used to dissipate heat from the battery module, ensuring that the battery operates within a suitable temperature range and extending the battery life; The power conversion system module is responsible for converting the DC power in the battery into AC power, or converting AC power into DC power for system use or charging; The intelligent controller module can monitor the operating status of the entire system and make adjustments as needed; The fire protection system module includes fire extinguishing gas sprinkler and water immersion fire protection equipment, which are used to take timely measures to protect the system safety when a fire occurs; The battery module includes a shell 1, a mounting groove is provided inside the shell 1, a heat sink 6 is fixedly installed inside the mounting groove, a heat conducting plate 5 is fixedly installed on the left side of the heat sink 6, limit frames 3 are fixedly installed on the upper and lower sides of the heat conducting plate 5, multiple battery packs 4 are installed inside the two limit frames 3, a heat dissipation mechanism is provided inside the heat sink 6, and an elastic mechanism is provided inside the limit frame 3; The fire protection system module includes two storage frames 2, which are fixedly mounted on the upper and lower sides of the housing 1, respectively. A storage mechanism is provided inside the storage frame 2, and an alarm light 26 is fixedly mounted outside the upper storage frame 2. A cleaning mechanism is provided outside the alarm light 26. The fire extinguishing gas spray device includes a rectangular groove 34 opened inside the upper end receiving frame 2 , and a fire extinguisher 35 is installed inside the rectangular groove 34 .

[0042] The heat dissipation mechanism includes a copper tube 7 fixedly installed inside the heat dissipation plate 6, one side of the copper tube 7 is fixedly connected to the heat conducting plate 5, and a rectangular tube 9 is fixedly installed on the other side of the copper tube 7. A heat conducting sheet 10 is fixedly installed on the outer wall of the rectangular tube 9, and two fans 16 are fixedly installed on the outer wall of the heat conducting sheet 10.

[0043] In this embodiment, the heat generated by the battery pack 4 is transferred to the copper tube 7 through the heat conducting plate 5, and the copper tube 7 then transfers the heat to the rectangular tube 9 and the heat conducting sheet 10. The thickness of the rectangular tube 9 is smaller than the diameter of the copper tube 7. The heat conducting sheet 10 is cooled by two fans 16, so that the heat generated by the battery pack 4 is dissipated in time.

[0044] The side wall of the heat conducting plate 10 is provided with a plurality of ventilation slots 11 at equal intervals.

[0045] In this embodiment, the plurality of ventilation slots 11 can increase the gas flow rate inside the heat conducting plate 10 , thereby accelerating the heat exchange between the heat conducting plate 10 and the external air, and further improving the heat dissipation rate.

[0046] One-way valves 8 are fixedly installed at both upper and lower ends of the copper tube 7 . The two one-way valves 8 have opposite flow directions. The copper tube 7 is also filled with evaporating liquid 15 , which is n-pentane.

[0047] In this embodiment, n-pentane is an organic compound that can be used to make artificial ice, anesthetics, synthesize amyl alcohol, isopentane, etc. Its boiling point is 36°C. The normal operating temperature of the battery pack 4 is around 35°C. When it is working, the heat inside it will be quickly transferred to the side of the copper tube 7 close to the heat conducting plate 5 through the heat conducting plate 5. After the evaporative liquid 15 at the bottom of the copper tube 7 evaporates and absorbs heat to become gas, the internal pressure of the copper tube 7 close to the heat conducting plate 5 increases. The one-way valve 8 at the upper end only allows the gaseous evaporative liquid 15 to enter the side close to the heat conducting plate 10, and the one-way valve 8 at the lower end only allows the liquid evaporative liquid 15 to enter the side close to the heat conducting plate 10. The evaporative liquid 15 enters the side close to the heat conducting plate 5, and then the gaseous evaporative liquid 15 enters the side close to the heat conducting plate 10 through the upper one-way valve 8. The gas passes through the rectangular tube 9. Since the thickness of the rectangular tube 9 is relatively low, the gas inside the copper tube 7 will flow toward the edge of the rectangular tube 9. Then the heat is transferred to the heat conducting plate 10, and the gaseous evaporative liquid 15 will be cooled and liquefied, and flow downward, and then re-enter the side close to the heat conducting plate 5 through the lower one-way valve 8 to be heated, thereby completing a cycle, and then continuing the heat transfer, thereby greatly accelerating the thermal conductivity efficiency of the copper tube 7.

[0048] A flow guide cavity 13 is also provided inside the rectangular tube 9 , and a plurality of flow divider plates 14 are fixedly installed inside the flow guide cavity 13 .

[0049] In this embodiment, the diverter plate 14 is composed of two inclined plates, which can change the flow direction of the fluid. After the gaseous evaporative liquid 15 drives the one-way valve 8 through the upper end to enter the interior of the rectangular tube 9, it will escape under the action of multiple diverter plates 14, thereby increasing the contact area with the rectangular tube 9, thereby accelerating the heat transfer with the heat conductive sheet 10.

[0050] The elastic mechanism includes a plurality of storage grooves 18 opened on the upper and lower sides of the heat conducting plate 5, a bottom plate 17 is fixedly installed at the contact surface between the battery pack 4 and the heat conducting plate 5, a memory metal wire 19 is installed inside each storage groove 18, one end of the memory metal wire 19 is fixedly connected to the bottom plate 17, and a plurality of rectangular openings 20 cooperating with the battery pack 4 are opened on the upper and lower sides of the shell 1.

[0051] In this embodiment, if there is an abnormality in the battery pack 4 inside the limit frame 3, the temperature inside the battery pack 4 will rise rapidly, and the memory wire 19 inside the storage slot 18 will be quickly heated after sensing the heat of the battery pack 4. The memory wire 19 is made of TiNi-02 nickel-titanium alloy, and its phase change temperature is around 60°C. It is a special alloy that can automatically restore its own plastic deformation to its original shape at a certain temperature. Its expansion rate is above 20%, and its damping characteristics are 10 times higher than that of ordinary springs. The memory wire 19 is processed into a twisted spring shape and then compressed and loaded into the storage slot 18. When the temperature reaches the phase change temperature of the memory wire 19, the memory wire 19 can be deformed rapidly and push the battery pack 4 in an abnormal state out of the rectangular opening 20.

[0052] The storage mechanism includes a plurality of sliding cavities 21 opened inside the storage frame 2 . The positions of the sliding cavities 21 and the rectangular opening 20 are consistent. A pneumatic mechanism is also provided inside the sliding cavity 20 .

[0053] In this embodiment, after the battery pack 4 is pushed out of the rectangular opening 20 , it enters the sliding cavity 21 inside the storage frame 2 , and the sliding cavity 21 confines it in a narrow cavity, thereby preventing abnormal battery packs 4 from affecting other normal battery packs 4 .

[0054] The pneumatic mechanism includes a top plate 22 slidably mounted inside the sliding cavity 21, a sealing strip is fixedly mounted at the edge of the top plate 22, two magnets 23 are also fixedly mounted at the bottom of the sliding cavity 21, a permanent magnet is fixedly mounted inside the top plate 22, the two magnets 23 are attracted to each other, a circular cavity 24 is opened inside the storage frame 2 on one side, an air inlet 32 ​​is arranged inside the circular cavity 24, an air outlet is opened inside each sliding cavity 21, the air outlet is connected to the air inlet 32, a nozzle 36 is opened on the inner wall of each sliding cavity 21, multiple nozzles 36 are connected to the lower end of the fire extinguisher 35, and a temperature sensor is also arranged inside the nozzle 36.

[0055] In this embodiment, after the battery pack 4 enters the interior of the sliding cavity 21, it will push the top plate 22 to move, and then the top plate 22 will push the gas inside the sliding cavity 21 to the air inlet 32 ​​through the air outlet. The two magnets 23 inside the sliding cavity 21 can adsorb the top plate 22 through permanent magnets, thereby ensuring the stability of the top plate 22 under normal conditions. At the same time, the temperature sensor inside the nozzle 36 will activate the fire extinguisher 35 after detecting abnormal temperature rise, thereby extinguishing the fire and cooling the interior of the sliding cavity 21.

[0056] The cleaning mechanism includes a circular groove 25 opened on the outside of the storage frame 2, an alarm light 26 is fixedly installed inside the circular groove 25, a rotating shaft 30 is rotatably installed between the circular groove 25 and the circular cavity 24, a fan blade is fixedly installed on the end of the rotating shaft 30 inside the circular cavity 24, and an exhaust port 33 connected to the outside of the storage frame 2 is also provided on the inner wall of the circular cavity 24, a gear 31 is fixedly installed on the end of the rotating shaft 30 inside the circular groove 25, a fixed plate 27 is fixedly installed on the outside of the storage frame 2, an arc plate 28 is rotatably installed on the upper end of the fixed plate 27, a brush strip is fixedly installed on the inner wall of the arc plate 28, a gear ring 29 is fixedly installed on the bottom of the arc plate 28, and the gear ring 29 meshes with the gear 31.

[0057] In this embodiment, after the gas inside the sliding cavity 21 is pushed into the circular cavity 24, it will blow the rotating shaft 30 and the fan blades to rotate, and then the rotating shaft 30 will drive the ring gear 29 and the arc plate 28 to rotate through the gear 31, and then the outer wall of the alarm light 26 will be cleaned through the brush strip to avoid affecting the alarm effect due to dust coverage.

[0058] Working principle of the present invention: the heat generated by the battery pack 4 is transferred to the copper tube 7 through the heat conducting plate 5, and the copper tube 7 then transfers the heat to the rectangular tube 9 and the heat conducting sheet 10. The thickness of the rectangular tube 9 is less than the diameter of the copper tube 7. The heat conducting sheet 10 is cooled by two fans 16, so that the heat generated by the battery pack 4 can be dissipated in time. The multiple ventilation slots 11 can increase the gas flow rate inside the heat conducting sheet 10, thereby accelerating the heat exchange between the heat conducting sheet 10 and the external gas, thereby improving the heat dissipation rate. N-pentane is an organic compound that can be used to make artificial ice, anesthetics, synthesize amyl alcohol, isopentane, etc. Its boiling point is 36°C. The normal working temperature of the battery pack 4 is around 35°C. When it is working, the heat inside it will be quickly transferred to the copper through the heat conducting plate 5. On the side of the tube 7 close to the heat conducting plate 5, after the evaporative liquid 15 at the bottom of the copper tube 7 evaporates and absorbs heat to become gas, the internal pressure of the copper tube 7 close to the heat conducting plate 5 increases, and the one-way valve 8 at the upper end only allows the gaseous evaporative liquid 15 to enter the side close to the heat conducting plate 10, and the one-way valve 8 at the lower end only allows the liquid evaporative liquid 15 to enter the side close to the heat conducting plate 5. Then, after the gaseous evaporative liquid 15 enters the side close to the heat conducting plate 10 through the upper one-way valve 8, the gas passes through the rectangular tube 9. Due to the low thickness of the rectangular tube 9, the gas inside the copper tube 7 flows toward the edge of the rectangular tube 9, and then the heat is transferred to the heat conducting plate 10, the gaseous evaporative liquid 15 will cool down and liquefy, and flow downward, and then re-enter the side close to the heat conducting plate 5 through the one-way valve 8 at the lower end to be heated. Thereby completing a cycle, and then continuing the heat transfer, thereby greatly accelerating the thermal conductivity of the copper tube 7. The diverter plate 14 is composed of two inclined plates, which can change the flow direction of the fluid. After the gaseous evaporative liquid 15 drives the one-way valve 8 through the upper end to enter the interior of the rectangular tube 9, it will escape under the action of multiple diverter plates 14, thereby increasing the contact area with the rectangular tube 9, thereby accelerating the heat transfer with the heat conductive sheet 10. If there is an abnormality in the battery pack 4 inside the limit frame 3, the temperature inside the battery pack 4 will rise rapidly, and the memory wire 19 inside the storage slot 18 will quickly heat up after sensing the heat of the battery pack 4. The memory wire 19 is made of TiNi-02 nickel-titanium alloy, and its phase change temperature is around 60°C. It can change its plasticity The memory wire 19 is a special alloy that automatically restores its original shape at a certain temperature. Its expansion rate is more than 20%, and its damping characteristics are 10 times higher than those of ordinary springs. The memory wire 19 is processed into a twisted spring shape and then compressed and loaded into the storage groove 18. When the temperature reaches the phase change temperature of the memory wire 19, the memory wire 19 can be quickly deformed and push the battery pack 4 in an abnormal state out of the rectangular opening 20. After the battery pack 4 is pushed out of the rectangular opening 20, it will enter the sliding cavity 21 inside the storage frame 2. The sliding cavity 21 confines it to a narrow cavity, thereby preventing the abnormal battery pack 4 from affecting other normal battery packs 4. After the battery pack 4 enters the sliding cavity 21, it will push the top plate 22 to move.Then the top plate 22 will push the gas inside the sliding cavity 21 to the air inlet 32 ​​through the air outlet. The two magnets 23 inside the sliding cavity 21 can adsorb the top plate 22 through the permanent magnet, thereby ensuring the stability of the top plate 22 in the normal state. At the same time, the temperature sensor inside the nozzle 36 will start the fire extinguisher 35 after detecting abnormal temperature rise, thereby extinguishing the fire and cooling the inside of the sliding cavity 21. After the gas inside the sliding cavity 21 is pushed into the circular cavity 24, it will blow the shaft 30 and the fan blades to rotate. Then the shaft 30 will drive the gear ring 29 and the arc plate 28 to rotate through the gear 31, and then the outer wall of the alarm light 26 will be cleaned by the brush strip to avoid the alarm effect being affected by dust.

[0059] In summary, the heat generated by the battery pack 4 is dissipated in time through the heat dissipation mechanism, the battery pack 4 in an abnormal state is pushed out of the rectangular opening 20 through the elastic mechanism, and the outer wall of the alarm light 26 is cleaned by the cleaning mechanism to avoid the alarm effect being affected by dust coverage.

[0060] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An intelligent string energy storage system, characterized in that: Including battery module, energy optimizer module, battery cluster controller module, distributed air conditioning module, power conversion system module, intelligent controller module and fire protection system module; The battery module is composed of a plurality of single cells and is responsible for storing electrical energy; The energy optimizer module is used to implement energy management and optimization at the battery module level to ensure that each module can work in the best state; The battery cluster controller module is responsible for energy balance between battery clusters, preventing parallel mismatch between clusters and improving the overall performance of the system; The distributed air conditioning module is used to dissipate heat from the battery module, ensuring that the battery operates within a suitable temperature range and extending the battery life; The power conversion system module is responsible for converting the direct current in the battery into alternating current, or converting alternating current into direct current, for use by the system or charging; The intelligent controller module can monitor the operating status of the entire system and make adjustments as needed; The fire fighting system module includes a fire extinguishing gas sprinkler and a water immersion fire fighting equipment, which are used to take timely measures to protect the safety of the system when a fire occurs; The battery module comprises a shell (1), the shell (1) having an installation slot formed therein, a heat sink (6) being fixedly mounted therein, a heat conducting plate (5) being fixedly mounted on the left side of the heat sink (6), limit frames (3) being fixedly mounted on both upper and lower sides of the heat conducting plate (5), a plurality of battery packs (4) being mounted therein, a heat dissipation mechanism being arranged therein, and an elastic mechanism being arranged therein; The fire protection system module comprises two storage frames (2), the two storage frames (2) being fixedly mounted on the upper and lower sides of the housing (1) respectively, a storage mechanism being arranged inside the storage frames (2), an alarm light (26) being fixedly mounted outside the upper storage frames (2), and a cleaning mechanism being arranged outside the alarm light (26); The fire extinguishing gas spray device comprises a rectangular groove (34) opened inside the upper end storage frame (2), and a fire extinguisher (35) is installed inside the rectangular groove (34).

2. The intelligent string energy storage system according to claim 1, characterized in that: The heat dissipation mechanism comprises a copper tube (7) fixedly mounted inside a heat dissipation plate (6), one side of the copper tube (7) being fixedly connected to a heat conducting plate (5), a rectangular tube (9) being fixedly mounted on the other side of the copper tube (7), a heat conducting sheet (10) being fixedly mounted on the outer wall of the rectangular tube (9), and two fans (16) being fixedly mounted on the outer wall of the heat conducting sheet (10).

3. The intelligent string energy storage system according to claim 2, characterized in that: The side wall of the heat conducting plate (10) is provided with a plurality of ventilation slots (11) at equal intervals.

4. The intelligent string energy storage system according to claim 3, characterized in that: One-way valves (8) are fixedly installed at both upper and lower ends of the copper tube (7), and the two one-way valves (8) have opposite flow directions. The copper tube (7) is also filled with evaporating liquid (15), and the evaporating liquid (15) is n-pentane.

5. The intelligent string energy storage system according to claim 4, characterized in that: A flow guide cavity (13) is also provided inside the rectangular tube (9), and a plurality of flow divider plates (14) are fixedly installed inside the flow guide cavity (13).

6. The intelligent string energy storage system according to claim 1, characterized in that: The elastic mechanism comprises a plurality of storage grooves (18) provided on the upper and lower sides of the heat conducting plate (5); a bottom plate (17) is fixedly mounted at the contact surface between the battery pack (4) and the heat conducting plate (5); a memory metal wire (19) is installed inside each of the storage grooves (18); one end of the memory metal wire (19) is fixedly connected to the bottom plate (17); and a plurality of rectangular openings (20) cooperating with the battery pack (4) are provided on the upper and lower sides of the housing (1).

7. The intelligent string energy storage system according to claim 6, characterized in that: The storage mechanism comprises a plurality of sliding cavities (21) opened inside the storage frame (2); the positions of the sliding cavities (21) are consistent with the rectangular opening (20); and a pneumatic mechanism is also provided inside the sliding cavity (20).

8. The intelligent string energy storage system according to claim 7, characterized in that: The pneumatic mechanism comprises a top plate (22) slidably mounted inside the sliding cavity (21), a sealing strip being fixedly mounted at the edge of the top plate (22), two magnets (23) being fixedly mounted at the bottom of the sliding cavity (21), a permanent magnet being fixedly mounted inside the top plate (22), the two magnets (23) being attracted to each other, a circular cavity (24) being provided inside the upper storage frame (2), an air inlet (32) being provided inside the circular cavity (24), an air outlet being provided inside each of the sliding cavities (21), the air outlet being connected to the air inlet (32), a nozzle (36) being provided on the inner wall of each of the sliding cavities (21), the plurality of nozzles (36) being connected to the lower end of a fire extinguisher (35), and a temperature sensor being provided inside the nozzle (36).

9. The intelligent string energy storage system according to claim 8, characterized in that: The cleaning mechanism comprises a circular groove (25) opened on the outside of the storage frame (2); the warning light (26) is fixedly mounted inside the circular groove (25); a rotating shaft (30) is rotatably mounted between the circular groove (25) and the circular cavity (24); a fan blade is fixedly mounted on the end of the rotating shaft (30) inside the circular cavity (24); an exhaust port (33) communicating with the outside of the storage frame (2) is also provided on the inner wall of the circular cavity (24); a gear (31) is fixedly mounted on the end of the rotating shaft (30) inside the circular groove (25); a fixing plate (27) is fixedly mounted on the outside of the storage frame (2); an arc plate (28) is rotatably mounted on the upper end of the fixing plate (27); a brush strip is fixedly mounted on the inner wall of the arc plate (28); a gear ring (29) is fixedly mounted on the bottom of the arc plate (28); the gear ring (29) meshes with the gear (31).

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