Lithium battery pack with automatic fire extinguishing function

By introducing anti-collision columns and shock-absorbing plate structures into the lithium battery pack, combined with a liquid storage box and infusion tube system, an automatic fire extinguishing function is realized, which solves the problem of lithium batteries being easily caught fire by impact and enhances the safety and reliability of lithium batteries.

CN120824490APending Publication Date: 2025-10-21ZHEJIANG WEICHUANGYUAN IND CO LTD
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Patent Information

Application Number
CN202511039972.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-28
Publication Date
2025-10-21

AI Technical Summary

Technical Problem

Existing lithium batteries do not have anti-collision functions, and external force impacts will increase the risk of fire.

Method used

A structure with a crash column, a shock-absorbing plate and a lithium battery pack was designed. Combined with a liquid storage box, an infusion tube and a glass tube system, it uses fire extinguishing agent spraying to achieve automatic fire extinguishing function, and provides warning and control through a smoke signal processor and display light.

Benefits of technology

It effectively prevents lithium batteries from rupturing and catching fire due to impact, realizes automatic fire extinguishing function, and reduces the temperature through the condenser and heat dissipation system to enhance safety and reliability.

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Abstract

The invention relates to a lithium battery pack, in particular to a lithium battery pack with an automatic fire extinguishing function. The lithium battery pack with the automatic fire extinguishing function comprises a bottom plate, a supporting plate, a non-slip mat, an anti-collision column, a damping plate and a lithium battery pack body. Supporting plates are welded to the left portions and the right portions of the front side and the rear side of the bottom plate correspondingly, anti-skid pads are arranged at the bottoms of the supporting plates correspondingly, anti-collision columns are symmetrically welded to the left side and the right side of the bottom plate correspondingly, damping plates are connected between the anti-collision columns, the number of the damping plates is four, and a lithium battery pack is further placed on the bottom plate. The lithium battery pack can be wrapped through cooperation of an anti-collision column, a damping plate and the lithium battery pack, a fire extinguishing agent can be sprayed to the lithium battery pack through cooperation of a liquid storage box, a liquid conveying pipe and a glass pipe, and therefore the fire extinguishing function of the lithium battery pack is achieved; the flashing of the display lamp can be controlled, the water flow controller can be turned on, and the flashing of the display lamp plays a warning role.
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Description

Technical Field

[0001] The present invention relates to a lithium battery pack, and in particular to a lithium battery pack with an automatic fire extinguishing function. Background Art

[0002] The patent with patent announcement number CN109166989A discloses a lithium battery with automatic fire extinguishing function, including a protective shell, a fire extinguishing body, a battery pack, a packaging body, a fire extinguishing agent and a battery pack outlet. The battery pack is provided in the protective shell, and the fire extinguishing body is provided at both ends of the inner side of the protective shell. The fire extinguishing body is provided with a rectangular packaging body, and the packaging body is provided with a fire extinguishing agent, and the fire extinguishing agent is perfluorohexanone liquid. A battery pack outlet is provided above the outer side of the protective shell. The lithium battery uses the fire extinguishing agent perfluorohexanone liquid filled in the packaging body of the fire extinguishing body. Perfluorohexanone is a green and environmentally friendly fire extinguishing agent with a vaporization temperature of 49°C. The vaporized gas sinks, which can isolate the air and absorb heat to quickly cool down, so as to achieve the purpose of automatic fire extinguishing of the lithium battery. Although the above patent realizes the fire extinguishing function of the lithium battery, the existing lithium battery does not have an anti-collision function, and external force impacting the lithium battery will increase the risk of fire.

[0003] Therefore, there is a particular need for a lithium battery pack with an automatic fire extinguishing function to solve the problems existing in the prior art. Summary of the Invention

[0004] In order to overcome the shortcomings of existing lithium batteries that do not have anti-collision function and that external force impacting the lithium battery will increase the risk of fire, the technical problem to be solved is: to provide a lithium battery pack with automatic fire extinguishing function.

[0005] The technical solution of the present invention is: a lithium battery pack with automatic fire extinguishing function, including a base plate, a support plate, an anti-slip pad, an anti-collision column, a shock-absorbing plate and a lithium battery pack. Support plates are welded to the left and right parts of the front and back sides of the base plate, and anti-slip pads are provided at the bottom of the support plate. Anti-collision columns are symmetrically welded on the left and right sides of the base plate. Shock-absorbing plates are connected between the anti-collision columns. The number of shock-absorbing plates is up to four, and a lithium battery pack is placed on the base plate.

[0006] As a preferred technical solution of the present invention, it also includes a liquid storage box, a liquid inlet pipe, a sealing ring, an infusion pipe, a connecting pipe, a water flow controller and a cross bar. The liquid storage box is connected between the outer sides of the anti-collision column, and the cross bar is connected between the upper parts of the front and rear shock-absorbing plates. The liquid inlet pipe is embedded in the middle of the upper part of the liquid storage box, and a sealing ring is clamped on the liquid inlet pipe. The front and rear sides of the liquid storage box are both embedded with infusion pipes. The inner ends of the infusion pipes on the left and right sides are connected through a connecting pipe, and the water flow controller is installed on the connecting pipe.

[0007] As a preferred technical solution of the present invention, a glass tube is also included, and the glass tube is connected between the inner sides of the infusion tube.

[0008] As a preferred technical solution of the present invention, it also includes vertical rods, mounting bases, smoke signal processors and display lights. The vertical rods are connected between the inner ends of the horizontal rods. Mounting bases are provided on the left and right sides of the middle of the vertical rods. Smoke signal processors are welded to the mounting bases. The smoke signal processors are installed with display lights. The display lights and the water flow controller are electrically connected to the smoke signal processors.

[0009] As a preferred technical solution of the present invention, it also includes a protective frame, a condenser and a condensing tube. The protective frames are installed on the shock-absorbing plates on the left and right sides. The condensers are welded to the protective frames and the shock-absorbing plates. Condensing tubes are installed between the condensers.

[0010] As a preferred technical solution of the present invention, it also includes a heat dissipation pipe and a warm controller. The heat dissipation pipe is embedded on the right side of the bottom of the base plate, and the warm controller is installed on the heat dissipation pipe.

[0011] As a preferred technical solution of the present invention, a dustproof net is also included, and a dustproof net is installed at the lower part of the heat dissipation pipe.

[0012] As a preferred technical solution of the present invention, the exterior of the anti-collision column is wrapped with a glass fiber composite material, thereby reducing the possibility of the lithium battery pack being ruptured and ignited by impact.

[0013] Beneficial effects: 1. The present invention can wrap the lithium battery pack by combining the anti-collision column, the shock-absorbing plate and the lithium battery pack.

[0014] 2. The present invention can spray the fire extinguishing agent onto the lithium battery pack through the combination of the liquid storage box, the infusion tube and the glass tube, thereby realizing the fire extinguishing function of the lithium battery pack.

[0015] 3. The present invention cooperates with the smoke signal processor and the display light to control the display light to flash and turn on the water flow controller. The flashing of the display light serves as a warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the bottom plate, support plate and anti-slip pad components of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the anti-collision column, shock absorption plate and lithium battery pack components of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the liquid storage box, liquid inlet pipe, sealing ring and other components of the present invention.

[0020] Figure 5It is a schematic diagram of the three-dimensional structure of the components such as the infusion tube, the connecting tube and the water flow controller of the present invention.

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the mounting base, smoke signal processor, display light and other components of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the protective frame, condenser, condenser tube and other components of the present invention.

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure of the heat dissipation pipe, dustproof screen and heating controller of the present invention.

[0024] The markings in the figure are: 1-base plate, 2-support plate, 3-anti-slip mat, 4-anti-collision column, 5-shock absorption plate, 6-lithium battery pack, 7-liquid storage box, 8-liquid inlet pipe, 9-sealing ring, 10-infusion pipe, 11-connecting pipe, 12-water flow controller, 13-cross bar, 1301-glass tube, 14-vertical bar, 15-mounting seat, 16-smoke signal processor, 17-display light, 18-protective frame, 19-condenser, 20-condensing pipe, 21-heat dissipation pipe, 22-dustproof net, 23-warming controller. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the present invention.

[0026] Example 1 A lithium battery pack with automatic fire extinguishing function, in a preferred embodiment of the present invention, Figures 1-8As shown, it includes a bottom plate 1, a support plate 2, an anti-slip mat 3, an anti-collision column 4, a shock absorbing plate 5, a lithium battery pack 6, a liquid storage box 7, a liquid inlet pipe 8, a sealing ring 9, an infusion pipe 10, a connecting pipe 11, a water flow controller 12, a crossbar 13, a glass tube 1301, a vertical rod 14, a mounting base 15, a smoke signal processor 16, a display light 17, a protective frame 18, a condenser 19, a condensing pipe 20, a heat dissipation pipe 21 and a warming controller 23. The left and right parts of the front and back sides of the bottom plate 1 are welded with the support plate 2, and the bottom of the support plate 2 is welded with the support plate 2. The anti-slip pad 3 is provided, the anti-collision column 4 is symmetrically welded on the left and right sides of the bottom plate 1, the shock-absorbing plate 5 is connected between the anti-collision columns 4, the number of the shock-absorbing plates 5 is up to four, and the lithium battery pack 6 is placed on the bottom plate 1. The liquid storage box 7 is connected between the outer sides of the anti-collision column 4, and the cross bar 13 is connected between the upper parts of the shock-absorbing plates 5 on the front and rear sides. The liquid inlet pipe 8 is embedded in the middle of the upper part of the liquid storage box 7, and the sealing ring 9 is clamped on the liquid inlet pipe 8. The front and rear sides of the liquid storage box 7 are The infusion tube 10 is embedded and connected. The inner ends of the infusion tubes 10 on the left and right sides are connected through the connecting tube 11. The water flow controller 12 is installed on the connecting tube 11. The glass tube 1301 is connected between the inner sides of the infusion tube 10. The vertical rod 14 is connected between the inner ends of the horizontal rod 13. The mounting base 15 is provided on both sides of the middle of the vertical rod 14. The smoke signal processor 16 is welded on the mounting base 15. The display light 17 is installed on the smoke signal processor 16. The display light 17 and the water flow controller 12 are electrically connected to the smoke signal processor 16. The protective frames 18 are installed on the left and right sides of the shock-absorbing plates 5. The condensers 19 are welded to the protective frames 18 and the shock-absorbing plates 5. The condensing pipe 20 is installed between the condensers 19. The heat dissipation pipe 21 is embedded in the right side of the bottom of the base plate 1. The warming controller 23 is installed on the heat dissipation pipe 21. It also includes a dustproof net 22, and the dustproof net 22 is installed at the lower part of the heat dissipation pipe 21.

[0027] The anti-collision column 4 and the shock absorbing plate 5 can wrap the lithium battery pack 6, thereby preventing the lithium battery pack 6 from being hit, ruptured and ignited. The bottom plate 1 and the support plate 2 can support the lithium battery pack 6, and the anti-slip pad 3 can increase the stability of the support plate 2. The staff can first open the sealing ring 9, and the sealing ring 9 will stop the liquid inlet pipe 8 to seal. Then the staff can pour an appropriate amount of fire extinguishing agent into the liquid inlet pipe 8, and the fire extinguishing agent in the liquid inlet pipe 8 will slide into the liquid storage box 7. When there is an appropriate amount of fire extinguishing agent in the liquid storage box 7, the fire extinguishing agent in the liquid storage box 7 will be ignited. After the liquid storage box 7 is in the liquid storage box, the staff can stop putting the fire extinguishing agent into the liquid inlet pipe 8, and then the staff can clamp the sealing ring 9 back on the liquid inlet pipe 8. The water flow controller 12 is turned on to draw the liquid in the liquid storage box 7 into the infusion pipe 10, and the fire extinguishing agent in the infusion pipe 10 will be sprayed onto the lithium battery pack 6, thereby realizing the fire extinguishing function of the lithium battery pack 6. The function of the connecting pipe 11 can connect the infusion pipe 10, and the cross bar 13 plays a supporting role. In order to increase the pressure of the fire extinguishing agent on the lithium battery pack 6 to extinguish the fire, the The fire extinguishing agent in the infusion tube 10 will be squeezed into the glass tube 1301, and the pressure of the fire extinguishing agent will squeeze the glass tube 1301, thereby achieving the purpose of increasing the pressure of the fire extinguishing agent. The vertical rod 14 and the mounting seat 15 play a supporting role. After the smoke signal processor 16 senses the smoke, the smoke signal processor 16 will control the display light 17 to flash and turn on the water flow controller 12. The flashing of the display light 17 serves as a warning. The condenser 19 can control the condensing tube 20 to cool, and the condensing tube 20 will cool the shock absorbing plate 5. However, the shock absorbing plate 5 will cool down the lithium battery pack 6 while absorbing shock, and the protective frame 18 plays a protective role. After the warm controller 23 is turned on, the warm controller 23 will replace the heat on the upper part of the bottom plate 1 through the heat dissipation pipe 21, thereby realizing the heat dissipation function of the lithium battery pack 6. The dustproof net 22 can prevent foreign matter from entering the heat dissipation pipe 21, thereby extending the service life of the heat dissipation pipe 21. The outside of the anti-collision column 4 is wrapped with a glass fiber composite material, thereby reducing the possibility of the lithium battery pack 6 being hit, broken and caught fire.

[0028] The technical principles of the embodiments of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the embodiments of the present invention and should not be construed in any way as limiting the scope of protection of the embodiments of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific implementations of the embodiments of the present invention without inventive effort, and such implementations will fall within the scope of protection of the embodiments of the present invention.

Claims

1. A lithium battery pack with automatic fire extinguishing function, characterized by: The invention comprises a bottom plate (1), a support plate (2), an anti-skid pad (3), an anti-collision column (4), a shock-absorbing plate (5) and a lithium battery pack (6). The left and right parts of the front and rear sides of the bottom plate (1) are both welded with support plates (2). The bottom of the support plate (2) is provided with an anti-skid pad (3). The left and right sides of the bottom plate (1) are both symmetrically welded with anti-skid columns (4). The anti-skid columns (4) are connected with shock-absorbing plates (5). The number of shock-absorbing plates (5) is up to four. A lithium battery pack (6) is also placed on the bottom plate (1).

2. The lithium battery pack with automatic fire extinguishing function according to claim 1, characterized in that: The invention also includes a liquid storage box (7), a liquid inlet pipe (8), a sealing ring (9), an infusion pipe (10), a connecting pipe (11), a water flow controller (12) and a cross bar (13). The outer sides of the anti-collision column (4) are connected with the liquid storage box (7). The upper parts of the front and rear shock-absorbing plates (5) are connected with the cross bar (13). The middle part of the upper part of the liquid storage box (7) is embedded with the liquid inlet pipe (8). The sealing ring (9) is clamped on the liquid inlet pipe (8). The front and rear sides of the liquid storage box (7) are both embedded with the infusion pipe (10). The inner ends of the infusion pipes (10) on the left and right sides are connected through the connecting pipe (11). The water flow controller (12) is installed on the connecting pipe (11).

3. A lithium battery pack with automatic fire extinguishing function as claimed in claim 2, characterized in that: It also includes a glass tube (1301), and the glass tube (1301) is connected between the inner sides of the infusion tube (10).

4. A lithium battery pack with automatic fire extinguishing function as claimed in claim 3, characterized in that: The utility model also includes a vertical rod (14), a mounting seat (15), a smoke signal processor (16) and a display light (17), wherein the vertical rod (14) is connected between the inner ends of the horizontal rod (13), and mounting seats (15) are provided on both the left and right sides of the middle of the vertical rod (14), and smoke signal processors (16) are welded on the mounting seats (15). The smoke signal processor (16) is installed with a display light (17), and the display light (17) and the water flow controller (12) are electrically connected to the smoke signal processor (16).

5. A lithium battery pack with automatic fire extinguishing function as claimed in claim 4, characterized in that: The utility model also includes a protective frame (18), a condenser (19) and a condensing tube (20), wherein the protective frame (18) is installed on the damping plates (5) on the left and right sides, the condenser (19) is welded to the protective frame (18) and the damping plates (5), and the condensing tube (20) is installed between the condensers (19).

6. A lithium battery pack with automatic fire extinguishing function as claimed in claim 5, characterized in that: It also includes a heat dissipation pipe (21) and a warming controller (23). The heat dissipation pipe (21) is embedded in the right side of the bottom of the base plate (1), and the warming controller (23) is installed on the heat dissipation pipe (21).

7. A lithium battery pack with automatic fire extinguishing function as claimed in claim 6, characterized in that: It also includes a dustproof net (22), and the dustproof net (22) is installed at the lower part of the heat dissipation pipe (21).

8. The lithium battery pack with automatic fire extinguishing function according to claim 7, characterized in that: The exterior of the anti-collision column (4) is wrapped with a glass fiber composite material, thereby reducing the possibility of the lithium battery pack (6) being ruptured and ignited by impact.

Citation Information

Patent Citations

  • A lithium battery with automatic fire extinguishing function

    CN109166989A