Battery pack fire extinguishing device

Abstract

The utility model relates to the technical field of fire extinguishing devices, and discloses a battery pack fire extinguishing device which comprises a shell, a top shell is arranged on the top wall of the shell, a plurality of fire extinguishing agents are installed on the periphery of the inner wall of the shell at equal intervals, and a plurality of electric push rods are fixedly connected to the periphery of the inner wall of the shell at equal intervals. The output end of the electric push rod is fixedly connected with a rack, the outer wall of the rack is in meshed connection with a gear, the middle of the gear is fixedly connected with a rotating shaft, a plurality of discs are fixedly connected to the periphery of the inner wall of the shell at equal intervals, and the top walls of the discs are rotationally connected with rotating discs. The electric push rod pushes the rack to move, the rack drives the gear to rotate, the gear drives the rotating disc on the rotating shaft to rotate on the disc, the rotating disc enables the sliding column to slide in the sliding groove, the sliding column pushes the knife block to slide in the sliding groove in the disc, the knife block punctures the outer skin of a fire extinguishing agent, a fire around a battery pack is rapidly extinguished, and fire extinguishing dead corners can be effectively avoided; and the fire extinguishing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, and in particular to a battery pack fire extinguishing device. Background Technology

[0002] A battery pack is a power supply device consisting of multiple battery cells connected together in series, parallel, or a combination of series and parallel, and equipped with a battery management system and housing components to provide specific voltage, capacity, and power output.

[0003] A battery pack fire suppression system is a device specifically designed to quickly and effectively extinguish battery pack fires. It typically consists of an extinguishing agent storage and release system, a fire detection and alarm system, and control components.

[0004] The battery pack utilizes the inorganic salt components in dry powder extinguishing agents to undergo a chemical reaction at high temperatures, forming a covering layer that isolates oxygen and inhibits combustion. However, improper installation of the extinguishing device can prevent it from functioning effectively and promptly during a fire. For example, if the installation position is too high or too low, the extinguishing agent may be obstructed during spraying and fail to accurately reach the ignition point. Alternatively, if installed in a location susceptible to impact or damage, the device may be damaged by external forces even before a fire occurs. Existing technology involves installing the extinguishing device close to these modules to ensure the extinguishing agent can reach the fire source more quickly. However, improper nozzle position and angle design can result in the extinguishing agent not evenly covering all parts of the battery pack, creating blind spots in the extinguishing process. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a battery pack fire extinguishing device, which aims to improve the problem in the prior art where the fire extinguishing agent cannot evenly cover all parts of the battery pack, resulting in fire extinguishing dead zones.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a battery pack fire extinguishing device, comprising a housing, a top shell on the top wall of the housing, multiple fire extinguishing agents equidistantly installed around the inner wall of the housing, multiple electric push rods fixedly connected equidistantly around the inner wall of the housing, a rack fixedly connected to the output end of each electric push rod, a gear meshing with the outer wall of the rack, a rotating shaft fixedly connected to the middle of the gear, multiple discs fixedly connected equidistantly around the inner wall of the housing, a turntable rotatably connected to the top wall of each disc, a rotating shaft fixedly connected to the middle of the bottom wall of the turntable, multiple sliding grooves I equidistantly formed on the outer wall of the turntable, a sliding column slidably connected to the inner wall of each sliding groove I, a blade fixedly connected to the bottom wall of each sliding column, multiple sliding grooves II equidistantly formed on the outer wall of each disc, the sliding grooves II slidably connected to the blade, a battery pack installed inside the housing, and a fixing mechanism provided on the outer walls of the housing and the top shell for sealing the housing and the top shell.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes three sliding grooves, each of which is located at one of the four corners of the top wall of the housing and the top shell. A threaded column is slidably connected to the inner wall of the sliding groove, and a locking column is slidably connected to the inner wall of the threaded column. A spring is fixedly connected to the inner bottom wall of the locking column. A locking block is rotatably connected to the front and rear sides of the lower middle part of the outer wall of the threaded column. A slot is provided on the front and rear sides of the lower middle part of the inner wall of the sliding groove, and the locking block engages with the slot. A threaded knob is threadedly connected to the upper middle part of the outer wall of the threaded column.

[0009] As a further description of the above technical solution:

[0010] Temperature sensors are installed on all four sides of the inner wall of the housing.

[0011] As a further description of the above technical solution:

[0012] A nameplate groove is provided on the right side of the outer wall of the shell.

[0013] As a further description of the above technical solution:

[0014] The top wall of the locking post is equipped with an anti-slip pad, and the outer wall of the threaded knob is provided with anti-slip texture.

[0015] As a further description of the above technical solution:

[0016] Flame-retardant plates are fixedly connected to the upper and lower ends of the outer wall of the battery pack.

[0017] As a further description of the above technical solution:

[0018] Heat dissipation fins are fixedly connected to both the front and rear sides of the outer wall of the shell.

[0019] As a further description of the above technical solution:

[0020] The top wall of the top shell is fixedly connected to both the front and rear sides with extension plates, and the outer walls of the two extension plates are fixedly connected to mounting plates at equal intervals on opposite sides.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the electric push rod pushes the rack to move, the rack drives the gear to rotate, and the gear drives the turntable on the rotating shaft to rotate on the disc. The turntable causes the sliding column to slide in the sliding groove, and the sliding column pushes the blade to slide in the sliding groove in the disc. As the turntable continues to rotate, the blade pierces the outer skin of the extinguishing agent, releases the extinguishing medium, and quickly extinguishes the fire around the battery pack. This effectively avoids fire extinguishing blind spots and improves fire extinguishing efficiency.

[0023] 2. In this utility model, the shell and top shell are closed, the locking pin on the threaded pin is pressed into the slide groove three, the threaded pin slides to the bottom, the spring causes the locking pin to move up and lock into the slot, the top shell and the shell are initially fixed, the threaded knob is tightened to press the surface of the top shell to prevent loosening and ensure the safety and reliability of the fire extinguishing device. Attached Figure Description

[0024] Figure 1 This is a front view of a battery pack fire extinguishing device proposed in this utility model.

[0025] Figure 2 This is a perspective view of a battery pack fire extinguishing device proposed in this utility model;

[0026] Figure 3 This is a partial structural exploded view of a battery pack fire extinguishing device proposed in this utility model;

[0027] Figure 4 This is a partial structural schematic diagram of a battery pack fire extinguishing device proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the fixing mechanism of a battery pack fire extinguishing device proposed in this utility model.

[0029] Legend:

[0030] 1. Housing; 2. Fixing mechanism; 201. Slide three; 202. Threaded post; 203. Locking post; 204. Spring; 205. Locking block; 206. Locking slot; 207. Threaded knob; 3. Top shell; 4. Extinguishing agent; 5. Electric push rod; 6. Rack; 7. Gear; 8. Shaft; 9. Disc; 10. Turntable; 11. Slide one; 12. Slide post; 13. Slide two; 14. Blade block; 15. Temperature sensor; 16. Nameplate slot; 17. Anti-slip pad; 18. Anti-slip texture; 19. Flame retardant plate; 20. Heat dissipation fins; 21. Extension plate; 22. Mounting plate; 23. Battery pack. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a battery pack fire extinguishing device, comprising a housing 1, a top shell 3 on the top wall of the housing 1, and multiple fire extinguishing agents 4 equidistantly installed around the inner wall of the housing 1. The fire extinguishing agents 4 quickly suppress the spread of fire in the battery pack 23, extinguishing the fire in a short time and reducing the damage to the battery pack and surrounding equipment. Multiple electric push rods 5 are fixedly connected at equal intervals around the inner wall of the housing 1. A rack 6 is fixedly connected to the output end of the electric push rod 5, which provides a stable thrust to the rack 6. A gear 7 is meshed with the outer wall of the rack 6, driving the gear 7 to rotate. A rotating shaft 8 is fixedly connected to the middle of the gear 7. Multiple discs 9 are fixedly connected at equal intervals around the inner wall of the housing 1. A turntable 10 is rotatably connected to the top wall of the disc 9. The rotating shaft 8 is fixedly connected to the middle of the bottom wall of the turntable 10. The gear 7 drives the turntable 10 on the rotating shaft 8 to rotate on the disc 9. The turntable 10 rotates upwards. Multiple sliding grooves 11 are equidistantly provided on the outer wall of the turntable 10. A sliding column 12 is slidably connected to the inner wall of the sliding groove 11. The turntable 10 drives the sliding column 12 in the sliding groove 11 to slide. A blade block 14 is fixedly connected to the bottom wall of the sliding column 12. Multiple sliding grooves 23 are equidistantly provided around the outer wall of the disc 9. The sliding grooves 23 are slidably connected to the blade block 14. The sliding column 12 drives the blade block 14 to slide in the sliding grooves 23 in the disc 9. A battery pack 23 is installed inside the housing 1. A fixing mechanism 2 is provided on the outer walls of the housing 1 and the top housing 3. The fixing mechanism 2 is used to seal the housing 1 and the top housing 3. Temperature sensors 15 are installed around the inner wall of the housing 1. The temperature sensors 15 are used to monitor the temperature change inside the housing 1 in real time. Flame-retardant plates 19 are fixedly connected to the upper and lower ends of the outer wall of the battery pack 23. The flame-retardant plates 19 can effectively prevent the flame from spreading from the battery pack 23 to the surrounding environment.

[0033] Specifically, the electric push rod 5 pushes the rack 6 to move, the rack 6 drives the gear 7 to rotate, the gear 7 drives the turntable 10 on the rotating shaft 8 to rotate on the disc 9, the turntable 10 drives the sliding column 12 in the first sliding groove 11 to slide, the sliding column 12 drives the blade 14 to slide in the second sliding groove 13 in the disc 9. As the turntable 10 continues to rotate, the blade 14 will pierce the outer skin of the extinguishing agent 4, and the internal extinguishing medium will be released rapidly to extinguish the fire around the battery pack 23. The outer walls of the housing 1 and the top shell 3 are provided with a fixing mechanism 2, which is used to seal the housing 1 and the top shell 3. The temperature sensor 15 is used to monitor the temperature change inside the housing 1 in real time. The flame retardant plate 19 can effectively prevent the flame from spreading from the battery pack 23 to the surrounding environment.

[0034] Reference Figure 3 and Figure 5The fixing mechanism 2 includes a sliding groove 201, which is opened at the four corners of the top wall of the housing 1 and the top shell 3. The inner wall of the sliding groove 201 is slidably connected to a threaded post 202, and the inner wall of the threaded post 202 is slidably connected to a locking post 203. The inner bottom wall of the locking post 203 is fixedly connected to a spring 204, which is used to rebound the locking post 203. The lower middle part of the outer wall of the threaded post 202 is rotatably connected to a locking block 205 on both the front and rear sides. The lower middle part of the inner wall of the sliding groove 201 is provided with a slot 206 on both the front and rear sides. The locking block 205 engages with the slot 206. The upper middle part of the outer wall of the threaded post 202 is threadedly connected to a threaded knob 207, which is used to further fix the threaded post 202. The top wall of the locking post 203 is equipped with an anti-slip pad 17, and the outer wall of the threaded knob 207 is provided with anti-slip texture 18.

[0035] Specifically, first, close the housing 1 and the top housing 3. Then, press the locking pin 203 on the threaded pin 202 and place it into the slide groove 201. When the threaded pin 202 slides to the bottom, the spring 204 rebounds the locking pin 203, pushing the locking pin 203 upward. Since there is a groove at the bottom of the locking pin 203, as the locking pin 203 moves upward, the locking block 205 tilts outward along the rotation connection point with the threaded pin 202. The locking block 205 engages with the locking groove 206 in the slide groove 201, initially achieving the fixation of the top housing 3 and the housing 1 at the corner. Rotate the threaded knob 207 to move it downward and press it against the surface of the top housing 3, further preventing the threaded pin 202 from loosening and avoiding accidental loosening or falling off of the top housing 3, thus ensuring the safety and reliability of the fire extinguishing device. The anti-slip texture 18 is used to increase the friction of the locking pin 203 and the friction between the hand and the threaded knob 207.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The outer wall of the housing 1 has a nameplate groove 16 on the right side. The nameplate groove 16 is used to mark the relevant information of the battery pack fire extinguishing device. Heat dissipation fins 20 are fixedly connected to the front and rear sides of the outer wall of the housing 1. Heat dissipation fins 20 are used to increase the contact area between the battery pack and the outside air to effectively reduce the temperature of the battery pack. Extension plates 21 are fixedly connected to the front and rear sides of the top wall of the top shell 3. Extension plates 21 are used to extend the mounting plate 22. Mounting plates 22 are fixedly connected at equal distances to the outer walls of the two extension plates 21 on the side away from each other. Mounting plates 22 are used to mount the housing 1 on the car floor.

[0037] Specifically, the nameplate slot 16 is used to mark relevant information of the battery pack fire extinguishing device, the heat dissipation fins 20 are used to increase the contact area between the battery pack and the outside air to effectively reduce the temperature of the battery pack, the extension plate 21 is used to extend the mounting plate 22, and the mounting plate 22 is used to mount the housing 1 on the car floor.

[0038] Working principle: The electric push rod 5 pushes the rack 6 to move, the rack 6 drives the gear 7 to rotate, the gear 7 drives the turntable 10 on the rotating shaft 8 to rotate on the disc 9, the turntable 10 drives the sliding column 12 in the first sliding groove 11 to slide, the sliding column 12 drives the blade 14 to slide in the second sliding groove 13 in the disc 9. As the turntable 10 continues to rotate, the blade 14 will pierce the outer skin of the extinguishing agent 4, and the internal extinguishing medium will be released rapidly to extinguish the fire around the battery pack 23.

[0039] First, close the housing 1 and the top housing 3. Then, press the locking pin 203 on the threaded pin 202 and place it into the slide groove 201. When the threaded pin 202 slides to the bottom, the spring 204 rebounds the locking pin 203, pushing the locking pin 203 upward. Since there is a groove at the bottom of the locking pin 203, as the locking pin 203 moves upward, the locking block 205 tilts outward along the rotation connection point with the threaded pin 202. The locking block 205 engages with the locking groove 206 in the slide groove 201, initially achieving the fixation of the top housing 3 and the housing 1 at the corner. Rotate the threaded knob 207 to move it downward and press it against the surface of the top housing 3, further preventing the threaded pin 202 from loosening and avoiding accidental loosening or falling off of the top housing 3, thus ensuring the safety and reliability of the fire extinguishing device.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery pack fire extinguishing device, comprising a housing (1), characterized in that: The top wall of the housing (1) is provided with a top shell (3). Multiple extinguishing agents (4) are installed at equal intervals around the inner wall of the housing (1). Multiple electric push rods (5) are fixedly connected at equal intervals around the inner wall of the housing (1). A rack (6) is fixedly connected to the output end of the electric push rod (5). A gear (7) is meshed with the outer wall of the rack (6). A rotating shaft (8) is fixedly connected to the middle of the gear (7). Multiple discs (9) are fixedly connected at equal intervals around the inner wall of the housing (1). A turntable (10) is rotatably connected to the top wall of the disc (9). The rotating shaft (8) is fixedly connected to the turntable (10). In the middle of the bottom wall of the turntable (10), multiple sliding grooves (11) are equidistantly provided on the outer wall of the turntable (10). A sliding column (12) is slidably connected to the inner wall of the sliding groove (11). A blade block (14) is fixedly connected to the bottom wall of the sliding column (12). Multiple sliding grooves (13) are equidistantly provided around the outer wall of the disc (9). The sliding grooves (13) are slidably connected to the blade block (14). A battery pack (23) is installed inside the housing (1). A fixing mechanism (2) is provided on the outer walls of the housing (1) and the top shell (3). The fixing mechanism (2) is used to seal the housing (1) and the top shell (3).

2. The battery pack fire extinguishing device according to claim 1, characterized in that: The fixing mechanism (2) includes a sliding groove three (201), which is opened at the four corners of the top wall of the shell (1) and the top shell (3). The inner wall of the sliding groove three (201) is slidably connected to a threaded column (202), and the inner wall of the threaded column (202) is slidably connected to a locking column (203). The inner bottom wall of the locking column (203) is fixedly connected to a spring (204). The lower middle part of the outer wall of the threaded column (202) is rotatably connected to a locking block (205) on both the front and rear sides. The lower middle part of the inner wall of the sliding groove three (201) is provided with a slot (206). The locking block (205) engages with the slot (206). The upper middle part of the outer wall of the threaded column (202) is threadedly connected to a threaded knob (207).

3. The battery pack fire extinguishing device according to claim 1, characterized in that: Temperature sensors (15) are installed on all four sides of the inner wall of the housing (1).

4. A battery pack fire extinguishing device according to claim 1, characterized in that: A nameplate groove (16) is provided on the right side of the outer wall of the housing (1).

5. A battery pack fire extinguishing device according to claim 2, characterized in that: The top wall of the locking post (203) is equipped with an anti-slip pad (17), and the outer wall of the threaded knob (207) is provided with anti-slip texture (18).

6. A battery pack fire extinguishing device according to claim 1, characterized in that: Flame-retardant plates (19) are fixedly connected to the upper and lower ends of the outer wall of the battery pack (23).

7. A battery pack fire extinguishing device according to claim 1, characterized in that: Heat dissipation fins (20) are fixedly connected to the front and rear sides of the outer wall of the shell (1).

8. A battery pack fire extinguishing device according to claim 1, characterized in that: The top shell (3) has extension plates (21) fixedly connected to both the front and rear sides of its top wall, and mounting plates (22) are fixedly connected at equal intervals to the outer walls of the two extension plates (21) on opposite sides.

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