Modularized spliced battery cell combination structure of storage battery

Abstract

The invention relates to the technical field of storage batteries, in particular to a modularly-spliced storage battery cell combined structure which comprises a battery box body, limiting bottom supports are fixedly mounted on the inner side wall of the bottom of the battery box body in a linear array mode, cell bodies are arranged in the limiting bottom supports, and barrier strips are symmetrically fixed to the tops of the cell bodies. A limiting assembly is arranged on the inner side wall of the bottom of the battery box body and is used for limiting the battery cell main body, an opening is formed in the front side of the battery box body, a heat dissipation plugging plate is arranged in the opening, and a temperature sensor for monitoring the internal temperature of the battery box body is fixedly mounted on the inner side wall of the battery box body; a power supply socket is fixedly mounted on one side of the battery box body, a power plug is inserted into the power supply socket, and a power line is connected to one end of the power plug. When the battery cell main bodies are on fire, the modularized spliced storage battery cell combined structure can extinguish fire of the battery cell main bodies, and meanwhile, the battery cell main bodies can be separately protected; and potential safety hazards are reduced.

Description

Technical Field

[0001] The invention specifically relates to a modularly spliced ​​battery cell combination structure, belonging to the technical field of batteries. Background Art

[0002] The battery is charged and discharged through reversible chemical reactions. When charging, the battery uses external electrical energy to regenerate the internal active substances and store the electrical energy as chemical energy; when discharging is required, the battery converts the chemical energy into electrical energy output again. The application range of batteries is becoming more and more extensive. Lithium batteries are widely used in energy storage power supply systems such as hydropower, thermal power, wind power and solar power stations, as well as power tools, electric bicycles, electric motorcycles, electric vehicles, special equipment, special aerospace and other fields.

[0003] The application document with the current application number CN202322744957.4 discloses a lithium battery module adopting a series-parallel combination structure, including a bottom plate, a group of end plates are fixedly installed on both sides of the top of the bottom plate, the end plates are provided with evenly distributed heat dissipation holes, a fixed block is fixedly connected to the middle of the top of the end plate, a pull ring is fixedly connected to the fixed block, and the top of the bottom plate is provided with evenly distributed card slots, and a battery cell is slidably carded in the card slot. The utility model can fix the battery cell to prevent it from shaking by opening the card slot, arranging the steel cable tie and the pull ring. The setting of the pull ring facilitates the installation and disassembly of the entire lithium battery module. The problem of insufficient heat dissipation of the lithium battery module is solved by arranging the heat dissipation baffle, micro motor, fan blade, etc., thereby greatly reducing the situation in which the lithium battery module cannot dissipate heat during operation or charging, resulting in increased temperature and eventual fire.

[0004] The above technical solution can fix the battery cell to prevent it from shaking, and solves the problem of insufficient heat dissipation of the lithium battery module by setting up heat dissipation baffles, micro motors, fan blades, etc. However, the above technical solution cannot handle when the battery cell catches fire, and it does not have a power-off function when the battery cell catches fire. Summary of the invention

[0005] The purpose of the present invention is to provide a modular battery cell combination structure to solve the above problems, which can not only extinguish the fire of the cell body, but also separate and protect multiple cell bodies, reducing safety hazards, and also has a power-off function.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: a modularly spliced ​​battery cell combination structure, including a battery box, a limited bottom bracket is fixedly installed in a linear array on the inner side wall of the bottom of the battery box, a battery cell body is arranged in the limited bottom bracket, and a baffle is symmetrically fixed on the top of the battery cell body. A limited component is arranged on the inner side wall of the bottom of the battery box, and the limited component is used to limit the battery cell body. An opening is opened on the front side of the battery box, and a heat dissipation sealing plate is arranged in the opening. A device for monitoring the inside of the battery box is fixedly installed on the inner side wall of the battery box A temperature sensor for measuring temperature, a power supply socket is fixedly installed on one side of the battery case, a power plug is inserted in the power supply socket, and a power cord is connected to one end of the power plug, a separation component for separating the power plug and the power supply socket is installed on the outer wall of one side of the battery case, a cover split protection integrated component is arranged on the rear side of the battery case, the cover split protection integrated component is used to close the opening at the top of the battery case and split and protect several battery cell bodies, and a fire extinguishing component for extinguishing the battery cell body is also connected to the cover split protection integrated component.

[0007] Furthermore, in order to drive the limit screw to rotate by the driving motor, the limit assembly includes a mounting block fixedly connected to the inner wall of the bottom of the battery box in a linear array, a limit slot is opened on one side of the mounting block, a driving motor is fixedly installed on the inner wall of the bottom of the limit slot, and the output shaft of the driving motor is fixedly connected to the limit screw.

[0008] Furthermore, in order to enable the T-shaped slide to press the limiting pressure plate by rotating the limiting screw, one end of the limiting screw is rotatably connected to the inner wall on the other side of the limiting slide groove, the limiting screw is threadedly connected to the T-shaped slide, and a limiting pressure plate is arranged at the bottom of the T-shaped slide, the limiting pressure plate is located at the top of the battery cell body, and the limiting pressure plate is also located between the baffle bars.

[0009] Furthermore, in order to drive the L-shaped driving plate to move by the electric telescopic rod, the separation assembly includes a base fixedly mounted on the outer wall of one side of the battery box, a rectangular plate with a rectangular groove on the top surface is fixed on the outer wall of the base, a sliding block is slidably engaged in the sliding groove on the top surface of the rectangular plate, an L-shaped driving plate is installed on the top of the sliding block, one end of the L-shaped driving plate is fixedly mounted on the outer wall of the power plug, and an electric telescopic rod is also installed on the outer wall of the base, one end of the electric telescopic rod is connected to the other end of the L-shaped driving plate.

[0010] Furthermore, in order to enable the lifting block to slide in the installation slot when the lifting screw rotates, the cover splitting protection integrated assembly includes a vertical connecting seat, the vertical connecting seat is fixed on the outer side wall of the rear side of the battery box, one side of the vertical connecting seat is provided with an installation slot, the lifting block is slidably connected in the installation slot, a lifting motor is fixed on the top of the vertical connecting seat, and a lifting screw is fixedly installed on the output shaft of the lifting motor.

[0011] Furthermore, in order to enable the linkage rod to drive the covering plate and the split cover body to move, one end of the lifting screw rod is rotatably installed in the installation slide groove, a linkage block is fixedly connected to the outer wall of the lifting block, and linkage rods are fixed on the outer wall of the linkage block in a linear array, and a covering plate is fixed on one end of the linkage rod, the covering plate is located in the opening at the top of the battery box, and the bottom of the covering plate is fixedly connected to the split cover body in a linear array.

[0012] Furthermore, in order to enable the pump body to extract the fire extinguishing agent in the fire extinguishing agent storage bottle, the fire extinguishing assembly includes a fire extinguishing agent storage bottle, the fire extinguishing agent storage bottle is fixedly connected to the top of the covering plate, the top of the covering plate is fixedly installed with a pump body in a linear array, a pipe is fixedly installed on the inner side wall of the top of the split cover body, a nozzle is connected to the pipe, the input end of the pump body is connected to the fire extinguishing agent storage bottle, and the other end of the pump body is connected to the pipe.

[0013] Furthermore, in order to facilitate the installation and disassembly of the heat dissipation sealing plate through the cooperation of the buckle lock and the buckle head, the heat dissipation sealing plate is provided with heat dissipation holes in a linear array, a heat dissipation net is fixed in the heat dissipation holes, right-angle plates are fixedly installed on both ends of the heat dissipation sealing plate, buckle heads are fixed on the right-angle plates, buckle locks are fixedly installed on the outer walls on both sides of the battery box, and the locking end of the buckle lock is sleeved on the buckle head.

[0014] The technical effects and advantages of the present invention are as follows: by providing a sealing split protection integrated component, a fire extinguishing component and a separation component, when a battery cell body catches fire, the split cover body on the sealing split protection integrated component can be lowered, and after multiple split cover bodies are lowered, multiple battery cell bodies can be separated for shielding and protection, and the split cover body serves as a physical barrier to prevent the burning battery cell body from spreading to the unburned battery cell body, thereby curbing the further spread of the fire, and the fire extinguishing component can extinguish the burning battery cell body. In addition, when the battery cell body catches fire, the power plug and the power supply socket can be separated by the separation component, thereby achieving the purpose of cutting off the power supply, and cutting off the power supply can immediately stop the transmission of electrical energy to the inside of the battery box, thereby preventing the battery from continuing to obtain energy supply during the combustion process, thereby preventing the fire from further expanding due to continuous electrical energy input. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the installation of the battery body in the present invention;

[0018] Figure 4 It is a schematic diagram of the connection between the cover segmentation protection integrated component and the fire extinguishing component in the present invention;

[0019] Figure 5 It is a structural schematic diagram of the fire extinguishing assembly in the present invention;

[0020] Figure 6 It is a schematic diagram of the structure of the limiting component in the present invention;

[0021] Figure 7 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 8 This is a schematic diagram of the installation of the heat dissipation sealing plate in the present invention;

[0023] In the figure: 1. battery box; 2. limit bottom bracket; 3. battery body; 4. stop bar; 5. limit assembly; 501. mounting block; 502. drive motor; 503. limit screw rod; 504. T-shaped slide plate; 505. limit pressure plate; 6. heat dissipation sealing plate; 7. temperature sensor; 8. power socket; 9. power plug; 10. power cord; 11. separation assembly; 1101. base; 1102. rectangular plate; 1103. sliding block; 1104. L-shaped drive plate; 1105. 12. The invention relates to a movable telescopic rod; 12. The sealing and splitting protection integrated component; 1201. The vertical connecting seat; 1202. The lifting block; 1203. The lifting screw rod; 1204. The lifting motor; 1205. The linkage block; 1206. The linkage rod; 1207. The sealing plate; 1208. The split cover body; 13. The fire extinguishing component; 1301. The fire extinguishing agent storage bottle; 1302. The pump body; 1303. The pipeline; 1304. The nozzle; 14. The heat dissipation net; 15. The right-angle plate; 16. The buckle head; 17. The buckle lock. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-8 As shown, a modularly assembled battery cell combination structure comprises a battery case 1, on the inner side wall of the bottom of the battery case 1, a limited bottom bracket 2 is fixedly installed in a linear array, a battery body 3 is arranged in the limited bottom bracket 2, and the battery body 3 can be plugged into the limited bottom bracket 2 when installed, and the limited bottom bracket 2 can prevent the battery body 3 from shifting, and the top of the battery body 3 is symmetrically fixed with a baffle 4, a limited component 5 is arranged on the inner side wall of the bottom of the battery case 1, and the limited component 5 is used to limit the battery body 3, an opening is opened on the front side of the battery case 1, and a heat dissipation sealing plate 6 is arranged in the opening, and a temperature sensor 7 for monitoring the internal temperature of the battery case 1 is fixedly installed on the inner side wall of the battery case 1, and the temperature sensor 7 can The temperature inside the battery case 1 is monitored. A power supply socket 8 is fixedly installed on one side of the battery case 1. A power plug 9 is inserted into the power supply socket 8. A power cord 10 is connected to one end of the power plug 9. After the power plug 9 is inserted into the power supply socket 8, power can be supplied through the power cord 10. A separation component 11 for separating the power plug 9 and the power supply socket 8 is installed on the outer wall of one side of the battery case 1. A cover and split protection integrated component 12 is provided on the rear side of the battery case 1. The cover and split protection integrated component 12 is used to close the opening at the top of the battery case 1 and split and protect several battery cell bodies 3. The cover and split protection integrated component 12 is also connected to a fire extinguishing component 13 for extinguishing the battery cell body 3.

[0026] The limiting assembly 5 includes a mounting block 501 fixedly connected to the inner wall of the bottom of the battery box 1 in a linear array, a limiting slide groove is provided on one side of the mounting block 501, a driving motor 502 is fixedly installed on the inner wall of the bottom of the limiting slide groove, a limiting screw rod 503 is fixedly connected to the output shaft of the driving motor 502, one end of the limiting screw rod 503 is rotatably connected to the inner wall of the other side of the limiting slide groove, the limiting screw rod 503 is threadedly connected to a T-shaped slide plate 504, a limiting pressure plate 505 is provided at the bottom of the T-shaped slide plate 504, and the limiting pressure plate 505 is located at the battery The top of the core body 3, and the limiting pressure plate 505 is also located between the blocking bars 4. Since the multiple battery core bodies 3 are independent, when a battery core body 3 is damaged, the user can make the lifting motor 1204 on the cover split protection integrated component 12 drive the lifting screw 1203 to rotate in situ, and then drive the cover plate 1207 and the fire extinguishing component 13 to rise. After the rise is completed, the opening at the top of the battery box 1 can be exposed, and then the user can rotate one end of the buckle lock 17 from the buckle head 16 to remove it, and then the user can remove the heat dissipation blocking plate 6;

[0027] When removing the damaged battery cell body 3, the user can make the driving motor 502 work and drive the limiting screw rod 503 to rotate in place, and with the cooperation of the limiting slide groove, the T-shaped slide plate 504 can be driven to rise. The T-shaped slide plate 504 and the limiting pressure plate 505 are not fixedly connected, and there is a contact relationship between the two. Therefore, after the T-shaped slide plate 504 rises, it will not drive the limiting pressure plate 505 to rise. After the limiting pressure plate 505 rises, the user can hold the limiting pressure plate 505 to remove it. Finally, the user can pull the battery cell body 3 upward for a distance and then remove it. After the damaged battery cell body 3 is removed, a new battery cell body 3 can be replaced. The disassembly and assembly are convenient and quick.

[0028] The separation component 11 includes a base 1101 fixedly mounted on the outer wall of one side of the battery box 1, a rectangular plate 1102 with a rectangular groove on the top surface is fixed on the outer wall of the base 1101, a sliding block 1103 is slidably engaged in the sliding groove on the top surface of the rectangular plate 1102, an L-shaped driving plate 1104 is installed on the top of the sliding block 1103, one end of the L-shaped driving plate 1104 is fixedly mounted on the outer wall of the power plug 9, an electric telescopic rod 1105 is also installed on the outer wall of the base 1101, one end of the electric telescopic rod 1105 is connected to the other end of the L-shaped driving plate 1104, and when the electric telescopic rod 1105 is extended, the power plug 9 can be detached from the power socket 8, thereby achieving the purpose of cutting off the power supply.

[0029] The cover splitting protection integrated component 12 includes a vertical connection seat 1201, which is fixed on the outer side wall of the rear side of the battery box 1, and a mounting slot is provided on one side of the vertical connection seat 1201. A lifting block 1202 is slidably connected in the mounting slot. A lifting motor 1204 is fixed on the top of the vertical connection seat 1201. A lifting screw rod 1203 is fixed on the output shaft of the lifting motor 1204. One end of the lifting screw rod 1203 is rotatably installed in the mounting slot. The lifting block 1202 is fixed on the outer side wall. A linkage block 1205 is connected, and linkage rods 1206 are fixed in a linear array on the outer wall of the linkage block 1205. A covering plate 1207 is fixed on one end of the linkage rod 1206. The covering plate 1207 is located in the opening at the top of the battery box 1, and the bottom of the covering plate 1207 is fixedly connected with a split cover body 1208 in a linear array. The cooperation of the lifting motor 1204 and the lifting screw rod 1203 can make the covering plate 1207 and the separation cover body rise and fall, and after the separation cover body is lowered, multiple battery cell bodies 3 can be separated and protected.

[0030] The fire extinguishing assembly 13 includes a fire extinguishing agent storage bottle 1301, which is fixedly connected to the top of the covering plate 1207. A pump body 1302 is fixedly installed on the top of the covering plate 1207 in a linear array. A pipe 1303 is fixedly installed on the inner side wall of the top of the split cover body 1208. A nozzle 1304 is connected to the pipe 1303. The input end of the pump body 1302 is connected to the fire extinguishing agent storage bottle 1301, and the other end of the pump body 1302 is connected to the pipe 1303. After the pump body 1302 is working, the fire extinguishing agent in the fire extinguishing agent storage bottle 1301 can be extracted, and then the fire extinguishing agent can be sprayed out through the nozzle 1304. The sprayed fire extinguishing agent can extinguish the fire of the battery cell main body 3, thereby reducing the spread of fire and reducing safety hazards.

[0031] The heat dissipation sealing plate 6 is provided with heat dissipation holes in a linear array, and a heat dissipation net 14 is fixed in the heat dissipation holes. Right-angle plates 15 are fixedly installed on both ends of the heat dissipation sealing plate 6, and buckle heads 16 are fixed on the right-angle plates 15. Buckle locks 17 are fixedly installed on the outer walls of both sides of the battery box 1, and the locking ends of the buckle locks 17 are sleeved on the buckle heads 16. The cooperation between the buckle locks 17 and the buckle heads 16 facilitates the installation and disassembly of the heat dissipation sealing plate 6. After the heat dissipation sealing plate 6 is disassembled, it is convenient to repair and replace the battery cell main body 3 inside the battery box 1.

[0032] When the present invention is in use, a plurality of battery body 3 modules can form a complete battery system after being spliced. Since each battery body 3 is an independent module, it can be maintained and replaced separately, and the capacity of the battery system can be easily expanded by increasing the number of battery body 3 modules. Since a temperature sensor 7 is installed in the battery box 1, when the temperature in the battery box 1 reaches a certain threshold, that is, when the battery body catches fire, the temperature sensor 7 can control the lifting motor 1204 to work through the controller. The controller is prior art, so a detailed description of the structure is not given. After the lifting motor 1204 works, it can drive The lifting screw rod 1203 rotates in situ, and the installation slide groove is under the limit at this time, which can drive the lifting block 1202 and the linkage block 1205 to descend. After the linkage block 1205 descends, it can drive the linkage rod 1206, the cover plate 1207 and the split cover body 1208 to descend until the split cover body 1208 completely covers the battery cell body 3. Since there are multiple split cover bodies 1208, multiple split cover bodies 1208 can separately protect multiple battery cell bodies 3. The split cover body 1208 serves as a physical barrier to prevent the burning battery cell body 3 from spreading to the unburned battery cell body 3, thereby curbing the further spread of the fire. When the split cover 1208 descends, the fire extinguishing assembly 13 can also be driven to move together. When the battery body 3 is on fire, the temperature sensor 7 can control the pump body 1302 to work through the controller. After the pump body 1302 is working, the fire extinguishing agent in the fire extinguishing agent storage bottle 1301 can be extracted, so that the extracted fire extinguishing agent can be carried into the pipeline 1303, and the fire extinguishing agent in the pipeline 1303 can be sprayed out through the nozzle 1304. Since the nozzle 1304 is located in the split cover 1208, the fire extinguishing agent sprayed by the nozzle 1304 can extinguish the fire of the battery body 3 on fire in the split cover 1208. In addition, when the battery body 3 is on fire, the temperature sensor 7 can control the pump body 1302 to work through the controller. After the pump body 1302 is working, the fire extinguishing agent in the fire extinguishing agent storage bottle 1301 can be extracted, so that the extracted fire extinguishing agent can be carried out into the pipeline 1303, and the fire extinguishing agent in the pipeline 1303 can be sprayed out through the nozzle 1304. Since the nozzle 1304 is located in the split cover 1208, the fire extinguishing agent sprayed by the nozzle 1304 can extinguish the fire of the battery body 3 on fire in the split cover 1208. The degree sensor 7 can control the extension of the electric telescopic rod 1105 through the controller. After the electric telescopic rod 1105 is extended, it can drive the L-shaped driving plate 1104 and the sliding block 1103 to move. One end of the L-shaped driving plate 1104 is fixed to the power plug 9, so that the moving L-shaped driving plate 1104 can drive the power plug 9 to move. After the power plug 9 moves, the power plug 9 and the power supply socket 8 can be separated, thereby achieving the purpose of cutting off the power supply. Cutting off the power supply can immediately stop the transmission of electrical energy to the inside of the battery box 1, avoiding the battery from continuing to obtain energy supply during the combustion process, thereby preventing the fire from further expanding due to continuous electrical energy input.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A modularly assembled battery cell assembly structure, comprising a battery box (1), a limiting bottom bracket (2) fixedly installed in a linear array on the inner side wall of the bottom of the battery box (1), a battery cell body (3) arranged in the limiting bottom bracket (2), and a blocking bar (4) symmetrically fixed on the top of the battery cell body (3), characterized in that: A limiting assembly (5) is provided on the inner side wall at the bottom of the battery box (1), and the limiting assembly (5) is used to limit the position of the battery cell body (3). An opening is provided on the front side of the battery box (1), and a heat dissipation sealing plate (6) is provided in the opening. A temperature sensor (7) for monitoring the internal temperature of the battery box (1) is fixedly installed on the inner side wall of the battery box (1). A power supply socket (8) is fixedly installed on one side of the battery box (1), and a power supply plug (9) is inserted into the power supply socket (8). One end of the power supply plug (9) is provided with a A power cord (10) is connected, a separation component (11) for separating the power plug (9) and the power socket (8) is installed on the outer wall of one side of the battery box (1), and a cover splitting protection integrated component (12) is arranged on the rear side of the battery box (1), the cover splitting protection integrated component (12) is used to close the opening at the top of the battery box (1) and split and protect a plurality of battery cells (3), and a fire extinguishing component (13) for extinguishing a fire on the battery cell (3) is also connected to the cover splitting protection integrated component (12).

2. A modular battery cell assembly structure as claimed in claim 1, characterized in that: The limiting assembly (5) comprises a mounting block (501) fixedly connected to the inner wall of the bottom of the battery box (1) in a linear array, a limiting slide groove is provided on one side of the mounting block (501), a driving motor (502) is fixedly mounted on the inner wall of the bottom of the limiting slide groove, and a limiting screw rod (503) is fixedly connected to the output shaft of the driving motor (502).

3. A modular battery cell assembly structure as claimed in claim 2, characterized in that: One end of the limiting screw rod (503) is rotatably connected to the inner side wall on the other side of the limiting sliding groove, and the limiting screw rod (503) is threadedly connected to a T-shaped slide plate (504). A limiting pressure plate (505) is provided at the bottom of the T-shaped slide plate (504), and the limiting pressure plate (505) is located at the top of the battery cell body (3), and the limiting pressure plate (505) is also located between the blocking bars (4).

4. A modular battery cell assembly structure as claimed in claim 1, characterized in that: The separation component (11) comprises a base (1101) fixedly mounted on an outer side wall of one side of the battery box (1); a rectangular plate (1102) with a rectangular groove on the top surface is fixedly mounted on the outer side wall of the base (1101); a sliding block (1103) is slidably engaged in the sliding groove on the top surface of the rectangular plate (1102); an L-shaped driving plate (1104) is mounted on the top of the sliding block (1103); one end of the L-shaped driving plate (1104) is fixedly mounted on the outer side wall of the power plug (9); an electric telescopic rod (1105) is also mounted on the outer side wall of the base (1101); one end of the electric telescopic rod (1105) is connected to the other end of the L-shaped driving plate (1104).

5. The modularized battery cell assembly structure according to claim 1, characterized in that: The cover split protection integrated assembly (12) comprises a vertical connection seat (1201), the vertical connection seat (1201) is fixed on the outer side wall of the rear side of the battery box (1), a mounting groove is provided on one side of the vertical connection seat (1201), a lifting block (1202) is slidably engaged in the mounting groove, a lifting motor (1204) is fixed on the top of the vertical connection seat (1201), and a lifting screw (1203) is fixedly installed on the output shaft of the lifting motor (1204).

6. A modular battery cell assembly structure as claimed in claim 5, characterized in that: One end of the lifting screw rod (1203) is rotatably mounted in the mounting slide groove, a linkage block (1205) is fixedly connected to the outer wall of the lifting block (1202), linkage rods (1206) are fixed in a linear array on the outer wall of the linkage block (1205), a sealing plate (1207) is fixed to one end of the linkage rod (1206), the sealing plate (1207) is located in the opening at the top of the battery box (1), and a split cover body (1208) is fixedly connected to the bottom of the sealing plate (1207) in a linear array.

7. A modularized battery cell assembly structure as claimed in claim 6, characterized in that: The fire extinguishing assembly (13) comprises a fire extinguishing agent storage bottle (1301), wherein the fire extinguishing agent storage bottle (1301) is fixedly connected to the top of the sealing plate (1207), a pump body (1302) is fixedly installed on the top of the sealing plate (1207) in a linear array, a pipe (1303) is fixedly installed on the inner side wall of the top of the split cover body (1208), a nozzle (1304) is connected to the pipe (1303), an input end of the pump body (1302) is connected to the fire extinguishing agent storage bottle (1301), and the other end of the pump body (1302) is connected to the pipe (1303).

8. The modularized battery cell assembly structure according to claim 1, characterized in that: The heat dissipation sealing plate (6) is provided with heat dissipation holes in a linear array, a heat dissipation net (14) is fixed in the heat dissipation holes, right-angle plates (15) are fixedly mounted on both ends of the heat dissipation sealing plate (6), buckle heads (16) are fixedly mounted on the right-angle plates (15), buckle locks (17) are fixedly mounted on the outer walls of both sides of the battery box (1), and the locking ends of the buckle locks (17) are sleeved on the buckle heads (16).

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