Energy storage battery with fire-retardant structure

Abstract

The application discloses a kind of energy storage batteries with flame-retardant structure, and is related to the technical field of energy storage batteries.It includes box, the inside of box is provided with through slot, the number of through slot is multiple, multiple through slot is evenly arranged in the inner wall of box, the number of battery is multiple, multiple battery is located at the interval of adjacent two through slots, the inside of through slot is fixedly connected with baffle, the outside of baffle is fixedly connected with inclined plate, the both ends of inclined plate are fixedly connected with two baffles respectively, and the both ends of inclined plate are located in the inside of through slot.The energy storage battery with flame-retardant structure, by baffle using non-combustible or non-combustible material, forms heat insulation layer at high temperature, when the temperature inside battery rises, baffle blocks heat transfer, reduces the heat conduction efficiency between batteries, delays or prevents flame spread, limits thermal runaway in single battery unit, avoids spreading to adjacent battery unit, and further avoids causing large-scale fire.

Description

Technical Field

[0001] This invention relates to the field of energy storage battery technology, specifically to an energy storage battery with a flame-retardant structure. Background Technology

[0002] With increasing global emphasis on environmental protection and sustainable development, the energy structure is gradually shifting towards renewable energy. Renewable energy sources such as solar and wind power are intermittent and unstable, requiring energy storage batteries to store excess energy and ensure a stable energy supply. With the rapid development of new energy technologies, energy storage battery systems, as core components of energy storage and conversion, are widely used in electric vehicles, energy storage power stations, and portable electronic devices. Large-scale energy storage battery systems often consist of multiple battery clusters, and each cluster is composed of multiple battery modules. Therefore, the key to preventing systemic fires in large-scale energy storage battery systems lies in preventing the spread of fire from individual battery modules.

[0003] In existing energy storage systems, battery packs are densely packed together, which makes it easy for heat to accumulate during use, potentially leading to individual battery combustion and explosion. Once a battery catches fire, it is impossible to prevent the heat from dissipating outwards, which can easily trigger a chain reaction. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: an energy storage battery with a flame-retardant structure, including a shell, a cover plate fixedly connected to the top of the shell, a pressure plate fixedly connected to the cover plate near the bottom of the shell, and a handle fixedly connected to the middle of the top of the cover plate;

[0005] The inner box is fixedly installed inside the outer shell. The battery is installed inside the inner box, and a base is fixedly connected to the bottom of the inner wall of the inner box near the battery.

[0006] The inner casing includes a housing with multiple through-slots evenly arranged on the inner wall. Multiple batteries are located between adjacent through-slots. A partition made of flame-retardant or non-combustible material is fixedly connected inside each through-slot. At high temperatures, the partition forms a heat insulation layer. When the internal temperature of the battery rises, the partition blocks heat transfer, reduces the heat conduction efficiency between batteries, delays or prevents the spread of flames, and confines thermal runaway to a single battery cell, preventing it from spreading to adjacent battery cells and thus avoiding a large-scale fire. The separator and the inclined plate form a Z-shape, providing comprehensive and stable support for the battery. When the battery is subjected to impact and severe vibration, the Z-shaped structure can disperse the external force, effectively resist the displacement and deformation of the battery, and reduce the risk of short circuit caused by physical damage. At the same time, the layered barrier design of the Z-shaped structure can act as a series of solid defenses in the event of battery thermal runaway, weakening the spread of flames and high temperatures layer by layer, greatly improving the safety performance of the battery pack. An inclined plate is fixedly connected to the outside of the separator. The separator is symmetrically arranged with the inclined plate as the center. The two ends of the inclined plate are fixedly connected to the two separators respectively. The two ends of the inclined plate are located inside the through groove.

[0007] Preferably, a positive terminal is fixedly connected to the inner wall of the inner box, and a negative terminal is fixedly connected to the side of the inner box near the positive terminal. The negative and positive terminals are symmetrically arranged at both ends of one side of the inner box. The battery is installed inside the box. After the battery is installed, the cover plate and protective shell are then installed so that the pressure plate contacts the top of the battery. At the same time, through the cooperation between the pressure plate and the base, the battery inside the box can be firmly fixed in the predetermined position, preventing the battery from shifting or shaking under conditions such as transportation bumps and equipment vibration. This effectively prevents the battery from being damaged by physical collisions, such as shell damage and electrode misalignment, and reduces the risk of internal short circuits. There are multiple pressure plates, which are evenly distributed on the cover plate. The pressure plates are located inside the shell, and the pressure plates and the battery are on the same vertical plane.

[0008] Preferably, the housing is located inside the shell, and a connecting plate is fixedly connected to the outside of the housing. A heat dissipation plate is fixedly connected to the outside of the connecting plate. The heat dissipation plate is trapezoidal, and the openings of the heat dissipation plate and the trapezoidal plate are opposite in direction. The trapezoidal structure increases the surface area of ​​the heat dissipation plate, increases the amount of air that can be contacted per unit space, and enhances the convective heat dissipation capacity. The alternating arrangement of the heat dissipation plate and the trapezoidal plate can guide the airflow to form a wave-like flow path, promote sufficient air disturbance between the heat dissipation plate and the trapezoidal plate, avoid the formation of heat dissipation blind spots, effectively improve heat exchange efficiency, and make the temperature distribution of the battery pack more uniform. There are multiple connecting plates, which are evenly and symmetrically arranged on both sides of the housing. The connecting plates on one side of the housing are symmetrically arranged with respect to the heat dissipation plate around the center. The ends of the heat dissipation plate are... The battery is fixedly connected to the connecting plate. Multiple through holes are provided on the outer side of the housing, alternating with the heat dissipation plate. The inner wall of the housing has slots located between two through holes. A snap-fit ​​assembly is installed inside the housing, with the assembly and slots on the same vertical plane. Multiple slots are arranged in groups of two, symmetrically positioned around a partition, with both slots on the same plane parallel to the partition. An inclined plate and two adjacent partitions are located within a through hole. A honeycomb panel is installed on the outer side of the battery. Due to the hexagonal porous structure of the honeycomb panel, it effectively resists external impacts and compression by dispersing stress, providing stable protection for the battery and preventing physical damage. To prevent safety hazards, the porous nature of the honeycomb panel provides ample airflow channels, increasing the contact area between air and the battery and promoting natural convection heat dissipation. Two honeycomb panels are symmetrically arranged around the battery, and are fixedly connected to the bottom of the inner wall of the housing. One battery and two adjacent honeycomb panels are located in the gap between two adjacent partitions. A guide plate is fixedly connected to the side of the honeycomb panel away from the battery. Airflow enters the space between the protective shell and the housing through the gap between the two guide plates on the protective shell. When dust-laden airflow passes through, vortices are generated at the misaligned gap between the heat dissipation plate and the trapezoidal plate. Dust particles separate from the airflow due to inertia and are forced to settle in a specific area, preventing dust from adhering to the heat dissipation plate. At key locations, dust is minimized to reduce its impact on heat dissipation efficiency. Airflow then enters the housing through through-holes, passing between adjacent guide vanes to ensure direct contact between the airflow and the battery's heat-generating components, thus cooling the battery. Multiple guide vanes are evenly distributed on the honeycomb plate. Trapezoidal blocks are fixedly connected to the edge of the separator away from the inclined plate. These trapezoidal blocks are divided into two groups, symmetrically positioned on both sides of the separator near the through-slot. By incorporating separators, guide vanes, and a honeycomb plate on the outside of the battery, multiple protective barriers are constructed. In extreme situations such as thermal runaway, the separator effectively blocks heat and flames, while the guide vanes disrupt airflow paths, slowing heat diffusion.The honeycomb structure of the honeycomb panel can disperse the stress generated by localized high temperatures. These three elements work together to suppress the spread of thermal runaway. The gap between two adjacent trapezoidal blocks forms a flow channel, and the diameter of the flow channel decreases from the through slot to the middle of the partition. A magnetic block is fixedly connected to the inner wall of the slot, and a sliding groove is formed on the side of the inner wall of the slot, symmetrically arranged around the magnetic block.

[0009] Preferably, the snap-fit ​​assembly includes a straight plate, with a snap-fit ​​block fixedly connected to the side of the straight plate near the snap-fit ​​slot. The snap-fit ​​block is located inside the snap-fit ​​slot, and there are multiple snap-fit ​​blocks evenly distributed on the straight plate. The snap-fit ​​blocks and the magnetic blocks have the same magnetism. The battery is installed in the gap between the two honeycomb plates, and the battery contacts and is squeezed between the battery and the straight plates on both sides. The straight plate is forced to move the snap-fit ​​block inside the snap-fit ​​slot and the slide groove. The mutual repulsion between the snap-fit ​​block and the magnetic block makes the straight plate make tight contact with the outside of the battery, thereby limiting and fixing the battery and preventing the battery from shifting. The straight plate is slidably connected to the snap-fit ​​slot through the snap-fit ​​block. A contact plate is fixedly connected to the top of the straight plate. A square groove is opened on the side of the straight plate away from the snap-fit ​​block. The contact plate is inclined. The two ends of the snap-fit ​​block are located inside the slide groove.

[0010] Preferably, the base includes a fixed plate, the top of which is fixedly connected to the bottom of the battery. A fixed block is fixedly connected to the middle of the bottom of the fixed plate, and the bottom edge of the fixed block is set as an inclined edge. A sliding frame is fixedly connected to the bottom of the fixed plate. There are two sliding frames, which are symmetrically arranged around the fixed block. A fixed frame is fixedly connected to the bottom of the inner wall of the box. The battery is placed on the top of the fixed plate. After the battery is placed, the cover is closed. At this time, the pressure plate and the battery are squeezed, the spring is compressed, and the battery moves downward, so that the cover is installed. The elasticity of the spring can limit and fix the vertical position of the battery. At the same time, the cover is opened, and the battery pops out under the elastic force of the spring, which is convenient for maintenance and replacement. The sliding frame is located inside the fixed frame, and the fixed frame and the sliding frame are slidably connected. A spring is fixedly connected to the bottom of the fixed plate. The end of the spring away from the fixed plate is fixedly connected to the box. An elastic plate is fixedly connected to the middle of the inner wall of the fixed frame. The elastic plate is symmetrically arranged around the fixed block.

[0011] Preferably, the casing includes a protective shell. By setting up the protective shell and the housing, the energy storage battery forms a double-shell design, constructing a multi-layered protection system. The protective shell can resist external threats such as mechanical collisions and heavy object compression, preventing internal short circuits caused by shell damage. The housing effectively prevents internal electrolyte leakage from corroding other components. This double protection reduces safety hazards. At the same time, the gap between the two shells forms a natural heat insulation layer, which can delay heat transfer and inhibit the spread of thermal runaway. A guide plate is fixedly connected to the side of the protective shell near the through hole. The guide plate is inclined. When the dust-laden airflow impacts the guide plate, the dust particles are deflected due to inertia. The dust settles upon impact with the surface of the baffle plate. The inclined angle of the baffle plate causes the dust to slide down the plate surface, preventing dust from entering the interior of the protective shell or adhering to the heat dissipation components. This effectively reduces the risk of reduced heat dissipation efficiency and equipment failure caused by dust accumulation. There are multiple baffle plates, which are evenly distributed on the protective shell and symmetrically arranged on both sides of the protective shell. The cover plate is fixedly connected to the protective shell. A trapezoidal plate is fixedly connected to the inner wall of the protective shell. The trapezoidal plate and the heat dissipation plate are alternately arranged. An intermediate plate is fixedly connected to the adjacent surface of the protective shell near the baffle plate. The two ends of the intermediate plate are fixedly connected to the protective shell and the housing, respectively.

[0012] This invention provides an energy storage battery with a flame-retardant structure. It has the following beneficial effects:

[0013] 1. The energy storage battery with a flame-retardant structure uses flame-retardant or non-combustible materials for the separator to form a heat insulation layer at high temperatures. When the internal temperature of the battery rises, the separator blocks heat transfer, reduces the heat conduction efficiency between batteries, delays or prevents the spread of flames, and confines thermal runaway to a single battery cell, preventing it from spreading to adjacent battery cells and thus avoiding large-scale fires.

[0014] Second, this energy storage battery with a flame-retardant structure can firmly fix the battery inside the box in a predetermined position through the cooperation between the pressure plate and the base, so as to prevent the battery from shifting or shaking under the conditions of transportation bumps and equipment vibration, effectively preventing the battery from being damaged by physical collisions, electrode misalignment and other problems, and reducing the risk of internal short circuit.

[0015] Third, this energy storage battery with a flame-retardant structure constructs multiple protective barriers by setting separators, flow guides and honeycomb panels on the outside of the battery. In extreme cases such as thermal runaway, the separators can effectively block heat and flames, the flow guides disrupt the airflow path and delay heat diffusion, and the honeycomb structure of the honeycomb panels can disperse the stress generated by local high temperature. The three work together to suppress the spread of thermal runaway.

[0016] Fourth, this energy storage battery with a flame-retardant structure, by setting up a protective shell and a box, forms a double-shell design, which builds a multi-layer protection system. The protective shell can resist external threats such as mechanical collisions and heavy object compression, and prevent the shell from breaking and causing internal short circuits. The box effectively prevents the internal electrolyte from leaking and corroding other components. The double protection reduces safety hazards. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the cover plate of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the housing of the present invention;

[0020] Figure 4 This is a partial structural diagram of the housing of the present invention;

[0021] Figure 5 This is a schematic diagram of the honeycomb panel of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the partition of the present invention;

[0023] Figure 7 This is a top view of the structure of the housing of the present invention;

[0024] Figure 8 This is a schematic diagram of the snap-fit ​​assembly of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of the base of the present invention;

[0026] Figure 10 This is a partial structural schematic diagram of the base of the present invention;

[0027] Figure 11 This is a schematic diagram of the structure of the housing of the present invention.

[0028] In the diagram: 1. Shell; 11. Protective shell; 12. Guide plate; 13. Trapezoidal plate; 14. Intermediate plate; 2. Cover plate; 3. Handle; 4. Inner box; 41. Box body; 42. Heat sink; 43. Connecting plate; 44. Through hole; 45. Slot; 46. Snap-fit ​​assembly; 461. Straight plate; 462. Contact plate; 463. Locking block; 464. Square groove; 47. Partition plate; 48. Honeycomb plate; 49. Inclined plate; 410. Trapezoidal block; 411. Guide plate; 412. Through groove; 413. Magnetic block; 414. Sliding groove; 5. Battery; 6. Base; 61. Fixing plate; 62. Sliding frame; 63. Fixing frame; 64. Elastic plate; 65. Spring; 66. Fixing block; 7. Pressure plate; 8. Positive terminal; 9. Negative terminal. Detailed Implementation

[0029] 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.

[0030] First embodiment, such as Figures 1 to 8 As shown, the present invention provides a technical solution: an energy storage battery with a flame-retardant structure, including a shell 1, a cover plate 2 fixedly connected to the top of the shell 1, a pressure plate 7 fixedly connected to the cover plate 2 near the bottom of the shell 1, and a handle 3 fixedly connected to the middle of the top of the cover plate 2.

[0031] Inner box 4 is fixedly installed inside the shell 1. Battery 5 is installed inside the inner box 4. Base 6 is fixedly connected to the bottom of the inner wall of the inner box 4 near the battery 5.

[0032] The inner casing 4 includes a casing 41, with multiple through slots 412 evenly arranged on the inner wall of the casing 41. Multiple batteries 5 are located at the intervals between adjacent through slots 412. A partition 47 is fixedly connected inside each through slot 412. The partition 47 is made of flame-retardant or non-combustible material and forms a heat insulation layer at high temperatures. When the internal temperature of the battery rises, the partition 47 blocks heat transfer, reduces the heat conduction efficiency between batteries, delays or prevents the spread of flames, and confines thermal runaway to a single battery cell, preventing it from spreading to adjacent battery cells and thus avoiding a large-scale fire. Meanwhile, the two separators 47 and the inclined plate 49 form a Z-shape, providing all-round stable support for the battery. When the battery is subjected to impact and severe vibration, the Z-shaped structure can disperse the external force, effectively resist the displacement and deformation of the battery, and reduce the risk of short circuit caused by physical damage. At the same time, the layered barrier design of the Z-shaped structure can act as a series of solid defenses in the event of battery thermal runaway, weakening the spread of flame and high temperature layer by layer, greatly improving the safety performance of the battery pack. The inclined plate 49 is fixedly connected to the outside of the separator 47. The separator 47 is symmetrically arranged with the inclined plate 49 as the center. The two ends of the inclined plate 49 are fixedly connected to the two separators 47 respectively. The two ends of the inclined plate 49 are located inside the through groove 412.

[0033] A positive terminal 8 is fixedly connected to the inner wall of the inner box 4, and a negative terminal 9 is fixedly connected to the side of the inner box 4 near the positive terminal 8. The negative terminal 9 and the positive terminal 8 are symmetrically arranged at both ends of one side of the inner box 4. The battery 5 is installed inside the box 41. After the battery 5 is installed, the cover plate 2 and the protective shell 11 are then installed so that the pressure plate 7 contacts the top of the battery 5. At the same time, through the cooperation between the pressure plate 7 and the base 6, the battery 5 inside the box 41 can be firmly fixed in the predetermined position, preventing the battery 5 from shifting or shaking under conditions such as transportation bumps and equipment vibration. This effectively prevents the battery 5 from being damaged by physical collisions, such as shell damage and electrode misalignment, and reduces the risk of internal short circuit. There are multiple pressure plates 7, which are evenly distributed on the cover plate 2. The pressure plates 7 are located inside the shell 1, and the pressure plates 7 and the battery 5 are located on the same vertical plane.

[0034] The housing 41 is located inside the shell 1. A connecting plate 43 is fixedly connected to the outer side of the housing 41, and a heat dissipation plate 42 is fixedly connected to the outer side of the connecting plate 43. The heat dissipation plate 42 is trapezoidal, and the openings of the heat dissipation plate 42 and the trapezoidal plate 13 are opposite in direction. The trapezoidal structure increases the surface area of ​​the heat dissipation plate 42, increases the amount of air that can be contacted per unit space, and enhances the convective heat dissipation capacity. The alternating arrangement of the heat dissipation plate 42 and the trapezoidal plate 13 can guide the airflow to form a wave-shaped flow path, causing the air to be fully disturbed between the heat dissipation plate 42 and the trapezoidal plate 13, avoiding the formation of heat dissipation blind spots, effectively improving the heat exchange efficiency, and making the temperature distribution of the battery pack more uniform. There are multiple connecting plates 43, which are evenly and symmetrically arranged on both sides of the housing 41. A connecting plate 43 on one side of the housing 41 is symmetrically arranged around a heat dissipation plate 42. Both ends of the heat dissipation plate 42 are fixedly connected to the connecting plate 43. Multiple through holes 44 are provided on the outer side of the housing 41, alternating with the heat dissipation plate 42. A slot 45 is provided on the inner wall of the housing 41, located between two through slots 412. A snap-fit ​​assembly 46 is provided inside the housing 41, located on the same vertical plane as the slot 45. Multiple slots 45 are provided, with two slots forming a group. Each group of slots 45 is symmetrically arranged around a partition plate 47, with the two slots on the same plane, parallel to the partition plate 47. An inclined plate 49 is located adjacent to two partition plates 47. Inside a through-slot 412, a honeycomb panel 48 is provided on the outer side of the battery 5. Due to the hexagonal porous structure of the honeycomb panel 48, it can effectively resist external impacts and compression by dispersing stress, providing stable protection for the battery 5 and preventing safety hazards caused by physical damage to the battery. At the same time, the porous nature of the honeycomb panel 48 provides abundant airflow channels, increasing the contact area between air and the battery and promoting natural convection heat dissipation. There are two honeycomb panels 48, which are symmetrically arranged with the battery 5 as the center. The honeycomb panels 48 are fixedly connected to the bottom of the inner wall of the housing 41. One battery 5 and two adjacent honeycomb panels 48 are located in the gap between two adjacent partitions 47. A guide plate 41 is fixedly connected to the side of the honeycomb panel 48 away from the battery 5. 1. Airflow enters the space between the protective shell 11 and the housing 41 through the gap between the two guide plates 12 on the protective shell 11. When the airflow carrying dust passes through, the airflow generates vortices at the misaligned gap between the heat sink 42 and the trapezoidal plate 13. Dust particles separate from the airflow due to inertia and are forced to settle in a specific area, preventing dust from adhering to key parts of the heat sink and reducing the impact of dust on heat dissipation efficiency. Subsequently, the airflow enters the interior of the housing 41 through the through hole 44, allowing the airflow to pass through the gap between two adjacent guide plates 411, thereby allowing the airflow to contact the heat-generating parts of the battery 5, achieving directional heat dissipation and cooling the battery 5. There are multiple guide plates 411, which are evenly distributed on the honeycomb plate 48.A trapezoidal block 410 is fixedly connected to the edge of the partition 47 away from the inclined plate 49. Multiple trapezoidal blocks 410 are arranged in two groups, symmetrically positioned on both sides of the partition 47 near the through slot 412. By setting the partition 47, guide vanes 411, and honeycomb plate 48 on the outside of the battery 5, multiple protective barriers are constructed. In extreme situations such as thermal runaway, the partition 47 can effectively block heat and flames, the guide vanes 411 disrupt the airflow path and slow down heat diffusion, and the honeycomb structure of the honeycomb plate 48 can disperse the stress generated by local high temperatures. These three elements work together to suppress the spread of thermal runaway. The gap between two adjacent trapezoidal blocks 410 forms a flow channel, and the diameter of the flow channel decreases from the through slot 412 to the middle of the partition 47. A magnetic block 413 is fixedly connected to the inner wall of the slot 45, and a sliding groove 414 is opened on the side of the inner wall of the slot 45, symmetrically arranged around the magnetic block 413.

[0035] The snap-fit ​​assembly 46 includes a straight plate 461. A snap-fit ​​block 463 is fixedly connected to the side of the straight plate 461 near the snap-fit ​​slot 45. The snap-fit ​​block 463 is located inside the snap-fit ​​slot 45. There are multiple snap-fit ​​blocks 463, which are evenly distributed on the straight plate 461. The snap-fit ​​blocks 463 have the same magnetism as the magnetic blocks 413. The battery 5 is installed in the gap between the two honeycomb plates 48. The battery 5 contacts and is pressed between the straight plates 461 on both sides. The straight plate 461 is forced to move the snap-fit ​​blocks 463 in the snap-fit ​​slot 45 and the sliding groove 413. The internal sliding of 14 utilizes the mutual repulsion between the card block 463 and the magnetic block 413 to make the straight plate 461 in close contact with the outside of the battery 5, thereby limiting and fixing the battery 5 and preventing the battery 5 from shifting. The straight plate 461 is slidably connected to the card slot 45 through the card block 463. A contact plate 462 is fixedly connected to the top of the straight plate 461. A square groove 464 is opened on the side of the straight plate 461 away from the card block 463. The contact plate 462 is inclined. The two ends of the card block 463 are located inside the sliding groove 414.

[0036] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 9 to 10As shown, the base 6 includes a fixing plate 61, the top of which is fixedly connected to the bottom of the battery 5. A fixing block 66 is fixedly connected to the middle of the bottom of the fixing plate 61, and the bottom edge of the fixing block 66 is set as an inclined edge. A sliding frame 62 is fixedly connected to the bottom of the fixing plate 61. There are two sliding frames 62, which are symmetrically arranged with the fixing block 66 as the center. A fixing frame 63 is fixedly connected to the bottom of the inner wall of the housing 41. The battery 5 is placed on the top of the fixing plate 61. After the battery 5 is placed, the cover plate 2 is closed. At this time, the pressure plate 7 and the battery 5 are squeezed together, and the spring 65 is compressed. The battery 5 moves downwards, allowing the cover plate 2 to be installed. The elasticity of the spring 65 limits and fixes the vertical position of the battery 5. At the same time, the cover plate 2 is opened, and the battery 5 pops out under the elastic force of the spring 65, making it easy to maintain and replace. The sliding frame 62 is located inside the fixed frame 63, and the fixed frame 63 and the sliding frame 62 are slidably connected. The bottom of the fixed plate 61 is fixedly connected to the spring 65, and the end of the spring 65 away from the fixed plate 61 is fixedly connected to the box 41. An elastic plate 64 is fixedly connected to the middle of the inner wall of the fixed frame 63. The elastic plate 64 is symmetrically arranged with the fixed block 66 as the center.

[0037] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figure 11 As shown, the housing 1 includes a protective shell 11. By setting the protective shell 11 and the casing 41, the energy storage battery forms a double-shell design, constructing a multi-layer protection system. The protective shell 11 can resist external threats such as mechanical collisions and heavy object compression, preventing internal short circuits caused by shell damage. The casing 41 effectively prevents internal electrolyte leakage from corroding other components. The double protection reduces safety hazards. At the same time, the gap between the two shells forms a natural heat insulation layer, which can delay heat transfer and inhibit the spread of thermal runaway. A guide plate 12 is fixedly connected to the side of the protective shell 11 near the through hole 44. The guide plate 12 is set at an angle. When the dust-laden airflow impacts the guide plate 12, the dust particles collide with the surface of the guide plate 12 due to inertia. The inclined angle of the guide plate 12 causes dust to slide down the plate surface, preventing dust from entering the interior of the protective shell 11 or adhering to the heat dissipation components. This effectively reduces the risk of reduced heat dissipation efficiency and equipment failure caused by dust accumulation. There are multiple guide plates 12, which are evenly distributed on the protective shell 11. The multiple guide plates 12 are symmetrically arranged on both sides of the protective shell 11. The cover plate 2 is fixedly connected to the protective shell 11. A trapezoidal plate 13 is fixedly connected to the inner wall of the protective shell 11. The trapezoidal plate 13 and the heat dissipation plate 42 are alternately arranged. An intermediate plate 14 is fixedly connected to the adjacent surface of the protective shell 11 near the guide plate 12. The two ends of the intermediate plate 14 are fixedly connected to the protective shell 11 and the housing 41, respectively.

[0038] In use, the battery 5 is installed inside the housing 41. After the battery 5 is installed, the cover plate 2 and the protective shell 11 are then installed so that the pressure plate 7 contacts the top of the battery 5. At the same time, through the cooperation between the pressure plate 7 and the base 6, the battery 5 inside the housing 41 can be firmly fixed in the predetermined position.

[0039] The separator 47 itself is made of flame-retardant or non-combustible material, forming a heat insulation layer at high temperatures. When the internal temperature of the battery rises, the separator 47 blocks heat transfer, reduces the heat conduction efficiency between batteries, delays or prevents the spread of flames, and confines thermal runaway to a single battery cell, preventing it from spreading to adjacent battery cells and thus avoiding large-scale fires. At the same time, the two separators 47 and the inclined plate 49 form a Z-shape, providing comprehensive and stable support for the battery. When the battery is subjected to impact and severe vibration, the Z-shaped structure can disperse external forces, effectively resisting battery displacement and deformation, and reducing the risk of short circuits caused by physical damage. In addition, the layered barrier design of the Z-shaped structure can act as a series of solid defenses when the battery is in thermal runaway, weakening the spread of flames and high temperatures layer by layer, greatly improving the safety performance of the battery pack.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy storage battery with a flame-retardant structure, characterized in that, include: The housing (1) has a cover plate (2) fixedly connected to the top of the housing (1), a pressure plate (7) fixedly connected to the cover plate (2) near the bottom of the housing (1), and a handle (3) fixedly connected to the middle of the top of the cover plate (2). The inner box (4) is fixedly installed inside the shell (1). The inner box (4) contains a battery (5). A base (6) is fixedly connected to the bottom of the inner wall of the inner box (4) near the battery (5). The inner box (4) includes a box body (41), and the inside of the box body (41) is provided with a through groove (412). There are multiple through grooves (412), and the multiple through grooves (412) are evenly arranged on the inner wall of the box body (41). There are multiple batteries (5), and the multiple batteries (5) are located at the interval between two adjacent through grooves (412). A partition (47) is fixedly connected inside the through groove (412), and an inclined plate (49) is fixedly connected to the outside of the partition (47). The partition (47) is symmetrically arranged with the inclined plate (49) as the center. The two ends of the inclined plate (49) are fixedly connected to the two partitions (47) respectively. The box (41) is located inside the shell (1), and a connecting plate (43) is fixedly connected to the outside of the box (41). A heat dissipation plate (42) is fixedly connected to the outside of the connecting plate (43). The outer side of the box (41) is provided with through holes (44), and there are multiple through holes (44); The housing (1) includes a protective shell (11). A guide plate (12) is fixedly connected to the side of the protective shell (11) near the through hole (44). There are multiple guide plates (12), which are evenly distributed on the protective shell (11) and symmetrically arranged on both sides of the protective shell (11). The cover plate (2) is fixedly connected to the top of the protective shell (11). A trapezoidal plate (13) is fixedly connected to the inner wall of the protective shell (11). The trapezoidal plate (13) and the heat dissipation plate (42) are alternately arranged. An intermediate plate (14) is fixedly connected to the adjacent side of the protective shell (11) near the guide plate (12). The two ends of the intermediate plate (14) are fixedly connected to the protective shell (11) and the box body (41) respectively.

2. The energy storage battery with a flame-retardant structure according to claim 1, characterized in that: The inner wall of the inner box (4) is fixedly connected to a positive electrode post (8), and the side of the inner box (4) near the positive electrode post (8) is fixedly connected to a negative electrode post (9). The negative electrode post (9) and the positive electrode post (8) are symmetrically arranged at both ends of one side of the inner box (4). There are multiple pressure plates (7), and the multiple pressure plates (7) are evenly distributed on the cover plate (2). The pressure plates (7) are located inside the shell (1).

3. The energy storage battery with a flame-retardant structure according to claim 2, characterized in that: There are multiple connecting plates (43), and the two ends of the heat sink (42) are fixedly connected to the connecting plates (43).

4. The energy storage battery with a flame-retardant structure according to claim 3, characterized in that: Multiple through holes (44) and heat sink (42) are alternately arranged. The inner wall of the housing (41) is provided with a slot (45). The slot (45) is located at the interval between two through slots (412). The housing (41) is provided with a snap-fit ​​assembly (46).

5. The energy storage battery with a flame-retardant structure according to claim 4, characterized in that: A honeycomb panel (48) is provided on the outside of the battery (5). There are two honeycomb panels (48). The two honeycomb panels (48) are symmetrically arranged with the battery (5) as the center. The honeycomb panels (48) are fixedly connected to the bottom of the inner wall of the box (41). A flow guide plate (411) is fixedly connected to the side of the honeycomb panel (48) away from the battery (5). There are multiple flow guide plates (411). The multiple flow guide plates (411) are evenly distributed on the honeycomb panel (48).

6. The energy storage battery with a flame-retardant structure according to claim 5, characterized in that: A trapezoidal block (410) is fixedly connected to the edge of the partition (47) away from the inclined plate (49). There are multiple trapezoidal blocks (410), which are divided into two groups. The two groups of trapezoidal blocks (410) are symmetrically arranged on both sides of the partition (47) near the through groove (412). A magnetic block (413) is fixedly connected to the inner wall of the slot (45). A sliding groove (414) is opened on the inner side of the slot (45). The sliding groove (414) is symmetrically arranged with the magnetic block (413) as the center.

7. The energy storage battery with a flame-retardant structure according to claim 6, characterized in that: The snap-fit ​​assembly (46) includes a straight plate (461). A snap-fit ​​block (463) is fixedly connected to the side of the straight plate (461) near the snap-fit ​​slot (45). The snap-fit ​​block (463) is located inside the snap-fit ​​slot (45). There are multiple snap-fit ​​blocks (463), which are evenly distributed on the straight plate (461). The straight plate (461) is slidably connected to the snap-fit ​​slot (45) through the snap-fit ​​blocks (463). A contact plate (462) is fixedly connected to the top of the straight plate (461). A square groove (464) is opened on the side of the straight plate (461) away from the snap-fit ​​block (463). The contact plate (462) is inclined. The two ends of the snap-fit ​​block (463) are located inside the sliding groove (414).

8. The energy storage battery with a flame-retardant structure according to claim 2, characterized in that: The base (6) includes a fixing plate (61), the top of the fixing plate (61) is fixedly connected to the bottom of the battery (5), a fixing block (66) is fixedly connected to the middle of the bottom of the fixing plate (61), and a sliding frame (62) is fixedly connected to the bottom of the fixing plate (61). There are two sliding frames (62), and the two sliding frames (62) are symmetrically arranged with the fixing block (66) as the center.

9. The energy storage battery with a flame-retardant structure according to claim 8, characterized in that: A fixed frame (63) is fixedly connected to the bottom of the inner wall of the box (41). The sliding frame (62) is located inside the fixed frame (63). The fixed frame (63) and the sliding frame (62) are slidably connected. A spring (65) is fixedly connected to the bottom of the fixed plate (61). The end of the spring (65) away from the fixed plate (61) is fixedly connected to the box (41). An elastic plate (64) is fixedly connected to the middle of the inner wall of the fixed frame (63). The elastic plate (64) is symmetrically arranged with the fixed block (66) as the center.

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